DE102004007395B4 - motor generator - Google Patents

Abstract

A motor generator (1, 1A, 1B, 1C, 1D, 1E, 1F, 1G, 1H, 1I, 1J, 1K, 1L, 1M, 900) comprising: a motor generator unit (MGU) including a housing (2, 3, 4) ; a stator (5, 21, 22, 913, 931, 932) fixed to the housing (2, 3, 4); a rotary member (6, 32a, 32b, 912, 941) rotatably mounted to the housing (2, 3, 4); a rotary shaft (31, 917); first and second radial fans (33a, 33b, 923a, 923b) fixed to the rotary shaft; and a brush (62, 918) for making contact with the rotary member (6, 32a, 32b, 912, 941) for supplying a field current to the rotary member (6, 32a, 32b, 912, 941); a control unit (7, 905) including a substantially cylindrical housing (70, 70A, 70C, 70E, 70F, 70G, 70H, 70I, 70J, 70K) integrally fixed to the housing (2, 3, 4); a plurality of switching components (73) contained in the housing (70, 70A, 70C, 70E, 70F, 70G, 70H, 70I, 70J, 70K) and a control circuit (79) contained therein, the electrical connection of the plurality of switching components ( 73) by connecting links to the control circuit (79) and the stator (5, 21, 22, 913, 931, 932) configured to supply electric power thereto, the stator (5, 21, 22, 913 , 931, 932) generates the magnetic field based on the supplied electric power, the rotary member (6, 32a, 32b, 912, 941) rotates based on the magnetic field; and a cover (87) which covers the housing (70, 70A, 70C, 70E, 70F, 70G, 70H, 70I, 70J, 70K) of the control unit (7, 905), the cover (87) allowing air to pass through is sucked in outside the cover (87) based on a rotation of the first and second radial fans (33a, 33b, 923a, 923b), characterized in that the housing (70, 70A, 70C, 70E, 70F, 70G, 70H, 70I, 70J, 70K) includes: a base plate member (71) made of heat absorbing material and having one and other opposing end surfaces, said base plate member (71) radially in said housing (70, 70A, 70C, 70E, 70F, 70G, 70H, 70I 70J, 70K) and having a substantially annular shape, wherein the switching members (73) are mounted on the one end surface of the base plate member (71); ...

Description

The present invention relates to a motor generator which serves either as a generator or as a motor.

In particular, the present invention relates to a motor generator integrated with a control unit including an inverter.

A conventional alternator used in vehicles, for example, is configured to rotate a rotor based on a driving force supplied from the engine of the vehicle, thereby generating an alternating current in the symmetrically placed stator windings opposite to the sides of the rotor. The generated alternating current is rectified by a rectifier of the alternator 2-way, and the 2-way rectified signal, d. H. DC signal is output from an output terminal of the alternator.

The Japanese Patent Publications JP H05-219703A . JP 2002-142 423 A , and JP 2001-298907 A disclose conventional alternators used in vehicles.

On the other hand, a conventional AC motor, such. As a multi-phase motor commonly used. In the use of the multi-phase AC motor, an inverter is used for converting a DC power supplied from a DC power source into a multi-phase AC voltage, whereby the multi-phase AC voltage can be applied to the multi-phase armature windings of the multi-phase AC motor.

The inverter usually has a number of switching elements of the upper branch (high-potential-side components), and a number of switching elements of the lower branch (low-potential-side components). This number corresponds to the number of phases of the multi-phase motor.

The switching elements of the upper and lower branches corresponding to the same phase are connected to each other in series, and are connected to the armature windings corresponding to the same phases. Each of the electrodes of the upper branch is connected at its DC side main terminal to a power supply line, which is called "high side DC line" or "plus side line", to the high potential side electrode of the DC power source (battery). Each of the electrodes of the lower arm is connected at its DC side main terminal to the low potential side electrode of the DC power source through a grounding line, which is referred to as "DC side low side line" or "DC side line line". MOS (Metal Oxide Semiconductor) transistors, bipolar transistors, IGPT (Insulated Gate Bipolar Transistors), or similar devices are used as switching devices of the upper and lower branches. When using the bipolar transistors or the IGPT, area diodes are respectively connected in parallel with the switching elements of the upper and lower branches, so that the DC flow directions of the diodes are respectively reversed against the DC directions of the switching devices.

As transistors of the upper and lower branches, power transistors whose carriers are electrons are preferably used because they reduce resistance losses and costs. That is, n-channel MOS transistors are selected in all types of MOS transistors, npn transistors in all types of bipolar transistors, or insulated gate npn transistors in all types of IGPT.

That is, the inverter is provided with a large number of switching devices (power transistors) and a control circuit for controlling them, and is designed such that the switching devices and the circuit components of the control circuit are intricately wired together. This arrangement of the inverter requires electrical and mechanical protection of the converter, in particular of the switching components and of the circuit components thereof.

To meet this requirement, the inverter, in the conventional motor generator with the inverter, is contained in a metallic or resin-sealed case. The sealed housing containing the inverter is fixed to the peripheral wall of the motor generator or to the end wall thereof.

In addition, each of the switching components of the inverter generates a large power loss on turning on and off, and causes a DC flow, so that it is important to cool each of the switching components in particular.

In conventional refrigeration systems, an air cooling system for supplying cooling air to the inverter and a water cooling system for cooling the inverter by cooling water are well known.

The Japanese Patent Publication JP H07-231 672 A discloses that the inverter is fixed to the end wall of the motor housing and is cooled by cooling air.

The converter of the publication has a substantially U-shaped housing in a radial cross-section, orthogonal to the axial direction. This configuration of the inverter allows a reduction of the motor diameter, and a simplification of the cooling system.

When installing the inverter in a synchronous motor with a field coil, it is possible to arrange the inverter at a position axially overlapping with the position of the brush, and radially different position. The converter of the publication is therefore preferably applied to synchronous motors, each of which has a field coil.

In a motor generator including a converter fixedly mounted on the end wall of the housing and cooled by radiators, it is difficult to downsize the size of the inverter and at the same time protect the inverter electrically and mechanically, as well as high cooling capability of the components of the inverter.

D. h., In the electrical and mechanical protection of the components of the inverter, such. As switching components and busbars to connect this, the components of the inverter are sufficiently shielded in the housing. Reducing the size of the housing of the inverter, with the sealing capability of the housing therefrom, causes a deterioration of the air flow of the cooling air in the housing. This results in insufficient cooling of the components of the inverter.

The DE 197 27 165 A1 shows an electric drive motor with a rotor outer rotor type and with a stator having a body made of thermally conductive material body with a bearing hub for the rotor and a radially wegstrebenden from this carrier for receiving a circuit board equipped with an electronics, which on the side facing away from the rotor Side of the carrier is arranged, in which for the purpose of improved dissipation of the heat generated in the electronics on the rotor-facing radial surface of the carrier, a plurality of concentric cooling fins is formed.

The DE 101 13 559 A1 discloses a device having at least one printed circuit board from which extend a plurality of insulated electrical conductors, a bowl-shaped metallic container in which the circuit board is mounted and the at least one cut or opening for the passage of the electrical conductors as well as a cut or having a seat adjacent this opening, a cable grommet of electrically insulating material penetrated by said cables and insertable into the seat of the container, the grommet being provided with an internal passageway which, after being positioned in the seat, injects a curable material Sealing material allows to sealingly close the gaps between the cables and the cable grommet, and a lid which is connected to the container above the circuit board, wherein the gaps between the lid, the container and the cable grommet by a curable sealing means are sealingly closed.

The WO 00/01054 A1 discloses a bearing shield assembly for an electronically switched motor having a bearing shield, a control assembly and a power assembly. The end shield includes a plurality of recessed ribs on an outer surface and a substantially flat raised portion on an inner surface. The raised portion is in contact with a thermal pad. The control arrangement comprises the thermal pad and a control board on which a plurality of power transistors are arranged. The thermal pad provides thermal contact between the transistors and the end shield to allow the shield to dissipate heat from the transistors. The transistors include a plurality of conductors that extend substantially parallel to the control board, allowing the conductors to be coated for protection against harsh environments. The power arrangement includes a power board with an insulator disposed between the power board and the control board.

The JP H09-84 302 A discloses that a DC buck converter and a Peltier element form a motor device with a drive circuit. Since power is supplied to drive the element via the transistor and an inductive resistor connected to the bus of a motor drive circuit, either the power input from a three-phase AC power source or that fed back from a motor via a transistor module regenerated power can be used. The transistor for supplying the power to the element is driven by a power source control circuit for the element. Consequently, even in the case of a sealed structure, there is no fear of malfunction of the circuit due to heat from a thermal component.

The JP H05-219 685 A discloses a generator according to the preamble of claim 1, wherein inlets are provided for sucking cooling air from outside the vehicle and for guiding it inwardly outside a rear housing, that is, in front of the body. In addition, the generator has a cover, which has a tubular passage is equipped, in which an electric fan for forcibly conveying cooling air is provided within this passage. The electric fan is turned on or off by a temperature sensor installed within a voltage control device. As a result, the outside air can be forcibly introduced as cooling air at a low speed, and the generator can be safely cooled by monitoring the temperature with the temperature sensor without loading the battery.

The US Pat. No. 3,809,935 A discloses a DC motor which is switched by Hall generators and semiconductor switching elements and whose end is constructed by a construction through which the field winding conductors of the motor extend. The DC motor has a stack of components which are connected at this end of the motor and have a mounting for the Hall generators, a heat sink, which carries the switching elements, and a circuit board for the various circuit components.

The DE 203 00 478 U1 shows a stator assembly having a divisible by six number of distinct stator poles, wherein in a predetermined angular range successively a first, second, third, fourth, fifth and sixth stator pole are arranged, and with three winding strands, which are connected in the triangle and those for their connection three busbars are assigned, wherein a first winding coil disposed on the first stator pole between a first busbar and a second busbar, arranged on the second stator pole second winding coil between the second busbar and a third busbar, arranged on the third stator pole third winding coil between the third bus bar and the first bus bar, a arranged on the fourth stator pole fourth winding coil between the first bus bar and the second bus bar, a arranged on the fifth stator pole fifth winding coil between the second bus bar and the third bus bar, and arranged on the sixth stator pole sixth winding coil between the third bus bar and the first bus bar are arranged.

SUMMARY OF THE INVENTION

The present invention is based on the background described above.

Accordingly, it is the object of the present invention to provide a motor generator which is able to reduce a control unit, while protecting the electrical and mechanical components, such as. B. switching components of the control units is maintained, and also its high cooling ability is maintained.

According to an object of the present invention, there is provided a motor generator comprising: a motor generator unit including a housing; a stator attached to the housing; a rotary member which is rotatably supported by the housing; a rotary shaft; first and second radial fans fixed to the rotary shaft; and a brush for making contact with the rotary member for supplying a field current to the rotary member; a control unit including a substantially cylindrical housing integrally attached to the housing; a plurality of switching devices included in the housing and a control circuit included therein, the plurality of switching elements directly connected to the control circuit and the stator through links, and configured to supply an electric power in which a magnetic field is based generated on the supplied electric power, the rotary member which rotates based on the magnetic field; and a cover covering the housing of the control unit, the cover allowing air to be sucked outside the cover based on rotation of the first and second radial fans, characterized in that the housing comprises: a base plate member made of a heat absorbing material is and has one and other opposite end surfaces, wherein the base plate member is disposed radially in the housing and the switching components are mounted on the one end surface of the base plate member; a first peripheral wall having a substantially tubular shape extending from an outer periphery of the one end surface of the base plate member in the axial direction of the housing, wherein a mounting space is provided between the base plate member and the first peripheral wall; a second peripheral wall having a substantially tubular shape extending from an inner periphery of the one end surface of the base plate member in the axial direction of the housing, the second peripheral wall having a groove formed on an inner surface of the second peripheral wall, wherein a brush holder fitted in the groove; a filling portion made of electrical insulating material and disposed in the mounting space; and a cooling member made of heat-absorbing material and formed at least on the other end surface of the base plate member, wherein the one end surface and the cooling member are formed toward an axial cooling passage, the base plate member and the cooling member serving as a heat sink for cooling the switching elements ; wherein the motor generator further comprises: a first cooling passage radially between the other End surface of the base plate member and the cover is arranged, wherein the first cooling passage leads the sucked air as an air flow, while the air flow impinges on the other surface of the base plate member and the cooling member; and a second cooling passage defined between the second peripheral wall and the rotation shaft, the second cooling passage causing the air flow in the axial direction of the rotation shaft to flow therethrough to cool the brush and introducing the air flow into the housing.

Further embodiments of the motor generator are the subject of the dependent claims.

BRIEF DESCRIPTION OF THE DRAWINGS

Other objects and aspects of the invention will become apparent from the following description of an embodiment with reference to the accompanying drawings. It shows:

1 a perspective view illustrating the overall arrangement of the motor generator according to a first embodiment of the invention;

2 an axial cross-sectional partial view showing an internal arrangement of the motor generator, as in 1 is shown;

3 a perspective view showing a schematic arrangement of the in 2 illustrated stator represents;

4 a circuit diagram showing a circuit arrangement of in 2 represents represented control unit;

5 an enlarged perspective view showing an internal arrangement of internal components of a converter housing of a control circuit, as in 2 shown schematically;

6 an enlarged perspective view of a cover side of in 5 schematically shows the converter housing illustrated;

7 an enlarged perspective view showing some of the internal components of the in 6 illustrated inverter housing typically represents;

8th an enlarged view, which typically represents an internal arrangement of internal components of a modification of the inverter housing according to the first embodiment;

9 an enlarged view showing a modification of the in 6 illustrated cooling fins represents;

10 an enlarged partial view illustrating a part of a motor generator according to a second embodiment of the present invention;

11 an enlarged partial view illustrating a part of a motor generator according to a third embodiment of the present invention;

12 an enlarged partial view illustrating a part of a motor generator according to a fourth embodiment of the present invention;

13 an enlarged partial view illustrating a part of a motor generator according to a fourth embodiment of the present invention;

14 an enlarged partial view illustrating a part of a motor generator according to a fifth embodiment of the present invention;

15 an enlarged partial view illustrating a part of a motor generator according to a sixth embodiment of the present invention;

16 an enlarged partial view illustrating a part of a motor generator according to a sixth embodiment of the present invention;

17 an enlarged partial view illustrating a part of a motor generator according to a seventh embodiment of the present invention;

18 an enlarged partial view illustrating a part of a motor generator according to an eighth embodiment of the present invention;

19 an enlarged partial view showing a part of the base plate according to the embodiment of 13 represents;

20 an enlarged partial view illustrating a part of a motor generator according to a ninth embodiment of the present invention;

21 an enlarged partial view showing a first modification of a motor generator according to the ninth embodiment of the present invention;

22 an enlarged partial view illustrating a second modification of a motor generator according to the ninth embodiment of the present invention;

23 an enlarged partial view illustrating a part of a motor generator according to a tenth embodiment of the present invention;

24 an enlarged partial view illustrating a part of a motor generator according to an eleventh embodiment of the present invention;

25A an enlarged partial view illustrating a part of a motor generator according to a twelfth embodiment of the present invention;

25B an enlarged partial view illustrating a first modification of the motor generator according to the twelfth embodiment of the present invention;

25C an enlarged partial view illustrating a second modification of the motor generator according to the twelfth embodiment of the present invention;

26A an enlarged partial view illustrating a part of the motor generator according to a thirteenth embodiment of the present invention;

26B an enlarged partial view showing the terminal member and the terminal block, as in 26A represented represents;

27 an enlarged partial view of a first modification of the in 26B illustrated bolt terminal according to the thirteenth embodiment;

28 is an enlarged partial view of a second modification of an in 26B according to the thirteenth embodiment shown mother terminal;

29 FIG. 15 is a perspective view illustrating another modification of the motor generator according to the thirteenth embodiment; FIG.

30 Fig. 12 is a view illustrating another modification of each of the first to thirteenth embodiments and modifications;

31A an axial cross-sectional view illustrating the cover according to the first to the thirteenth embodiment and modifications;

31B an axial cross-sectional view showing a modification of the in 31A illustrated cover represents;

31C an axial cross-sectional view showing a modification of in 31A illustrated cover represents;

32 a partial axial cross-sectional view illustrating an internal arrangement of a motor generator according to a thirteenth embodiment;

33 a circuit diagram corresponding to a circuit arrangement of in 32 represents represented control unit; and

34 an enlarged partial view of a laminated arrangement of a plus-side cooling fin, the minus-side radiator detector, and the AC rail member, which in 32 and 33 is shown represents.

DETAILED DESCRIPTION OF THE EMBODIMENTS OF THE INVENTION

Embodiments of the invention will be described below with reference to the accompanying drawings. In the embodiments described below, specifically, a vehicle-mounted engine generator will be described as an example of the motor-generator according to the invention.

First Embodiment

In 1 is a motor generator 1 according to the first embodiment of the present invention with a housing 2 , which has an inner, substantially hollow cylindrical shape provided. The housing 2 consists of first and second housing components 3 and 4 , The first housing component 3 has an opening end wall 3a and opposite another end wall 3b and an annular side wall 3c which are connected to each other and form an inner substantially hollow area with each other. The second housing component 4 also has an opening end wall 4a and an opposite further end wall 4b and an annular side wall 4c which are connected to each other and form an inner, substantially hollow area with each other.

The first and second housing components 3 and 4 are coaxially arranged so that the open end walls 3a and 4a in the axial direction opposite.

The motor generator 1 is also with one in the case 2 included stator 5 Mistake. The stator 5 is in the first embodiment with multi-phase stator windings, three-phase stator windings 21 and a stator core 22 that has a lot of slits 22a (please refer 3 ) provided. The stator core 22 is in the case 2 coaxially disposed, and is at its outer peripheral portion at the inner periphery of the annular side walls 3c and 4c the respective first and second housing components 3 and 4 fixed. The stator core 22 is with an insulating cover 23 covered.

The three phase stator windings 21 ie the U-phase winding 21 (U) , the V-phase winding 21 (V) and the W phase winding 21 (W) are arranged, for example, in star connection. The reference numerals 21c Denote supply wires of the stator of the three phase windings 21 ,

The rotor 6 is coaxial with the radial inside of the stator 5 in the case 2 arranged. The rotor 6 has a rotating shaft 31 , which from the other end wall 3b and 4b the first and second housing components 3 and 4 stands out. Ie. the rotary shaft 31 is rotatably supported by a bearing Ba, which in an opening through the other end wall 3b of the first housing component 3 is formed, is inserted, and by a bearing Bb, which on an inner side of the other end wall 4b of the second housing component 4 is attached, stored.

The bearing Bb is replaced by a tubular bearing bracket 29 stored. The tubular bearing bracket 29 is provided at a peripheral end extending radially outwardly as a flange portion 29a serves. The flange section 29a is on the inner surface of the other end wall 4b fixed.

At an end portion of the rotary shaft 31 , which from the opening of the other end wall 3b protrudes, a pulley P is fixed. The pulley P is connected to a drive section, such. As a crankshaft or an engine of the vehicle, connected by a belt mechanism.

The rotor 6 also has a rotor core pair 32a and 32b of the Randell type, each having a substantially annular shape. The rotor cores 32a and 32b are arranged opposite to each other in the axial direction, so that their inner opposite end surfaces are in contact with each other. The rotary shaft 31 is fitted to in each of the rotor cores 32a and 32b to be fixed. The rotor cores 32a and 32b are formed with grooves G1 and G2, so that the grooves G1 and G2 are opposed to each other, which is an annular chamber C about the rotation shaft 31 provide.

The rotor 6 has first and second radial fans 33a and 33b on which at the respective outer end surfaces of the rotor cores 32a and 32b are firmly attached. The rotor 6 also has a field coil 34 which is disposed in the annular chamber C, around the rotation shaft 31 to be wrapped around.

The first housing component 3 is at portions of the annular side wall 3c with first air outlets 41a formed so that the first air passages 41 the fan 33a in the radial direction opposite. The second housing component 4 is equally at portions of the annular side wall 4c with second air passages 41b formed so that the second air passages 41b the fan 33b in the radial direction opposite.

The first housing component 3 is also on sections of the other end wall 3b with third air passages 42a formed so that the third air passages 42a the fan 33a in the axial direction opposite. The second housing component 4 is equally on sections of the other end wall 4b with fourth air passages 42b formed so that the fourth air passages 42b the fan 33b in the axial direction opposite.

These arrangements of the fans 41a . 41b . 42a and 42b What the winding ends of the stator windings 21 allowed to be positioned on tracks (pads), one of which through the first air outlets 41a and the third air vents 42a , and the others of those through the second air vents 41b and the fourth air vents 42b are provided.

That is, these first and second air outlets 42a and 42b allow cooling air in the inner hollow portion of the housing 2 flows. The cooling air flows along each of the tracks toward each of the third and fourth fans 41a and 42b their speed being through each of the fans 33a and 33b is increased. The cooling air flow cools each of the coil ends of the stator windings 21 , After cooling the winding ends of the stator windings 21 the cooling air flows through the third and fourth air outlets 41a and 41b out.

Moreover, the engine generator 1 with a control unit 7 provided, which on the outer side of the other end wall 4b is attached and the control unit 7 surrounds the protruding portion of the rotary shaft 31 , The control unit 7 has the function on, the motor generator 1 alternately as a generator and to control a motor.

The control unit 7 has a substantially cylindrical inverter housing 70 on, with an open head end and is coaxial with respect to the axial direction of the rotary shaft 31 arranged.

The inverter housing 70 consists of a base plate 71 with a substantially annular shape and an opening 71a in the middle area. The base plate 71 is with respect to the second housing component 4 arranged so that the base plate is opposite to this coaxially. The inverter housing 70 consists of a tubular outer peripheral wall 72a extending from the outer periphery of the base plate 71 extends in the direction of the side of the second housing member in the axial direction. The inverter housing 70 also consists of an inner peripheral wall 72b which has a substantially rectangular tubular shape and extending from the inner periphery of the opening 71a the base plate 71 extends in the direction of the side of the second housing in the axial direction.

The inverter housing 70 has a predetermined thickness in the axial direction, which can withstand any vibration or any direction stand or wear.

The control unit 7 has an annular plate-like minus-side busbar 75a which has a continued end portion of the outer peripheral wall 72a forms, as well as an annular plate-like plus-side busbar 75b which has an intermediate portion of the inner peripheral wall 72b forms. That is, the minus-side busbar 75a and the plus-side busbar 75b are integrally molded with other bus bars by resin insert molding, so that these outer and inner peripheral walls 72a and 72b in which the minus-side and plus-side busbars 75a and 75b each buried are trained.

The minus-side busbar 75a is through a terminal E to the low voltage side (low potential side) of the control unit 7 connected so that the minus-side busbar 75a a negative line of the converter circuit 730 forms. An end section 75b1 the positive side busbar 75b is through a DC output terminal B of the control unit 7 with the high side (high potential side) of the battery (DC power supply) 740 connected so that the plus-side busbar 75b a positive line of the converter circuit 730 forms.

The DC output terminal B is also connected to a load L.

The base plate 71 is made of heat-absorbing material, such as metal or similar materials. The base plate 71 is made for example by die-cast aluminum. The outer peripheral wall 72a and the inner peripheral wall 72b are with the base plate 71 integrated. The base plate 71 with the outer and inner peripheral walls 72a and 72b can be integrated by resin insert molding, adhesive bonding, screws or similar types of integration.

In the example of the resin insert molding, the busbars will be at specified design positions in the mold, which will be the inverter housing 70 arranged and electrically insulating resin is inserted into the mold, so that after cooling of the mold, the converter housing integrated with the busbars 70 is trained. The busbars are through the inserted resin (filling area 74 ) are electrically isolated from each other.

The control unit 7 is with a brush holder 60 provided, which has an inner cylindrical hollow part. The inner peripheral wall 72b is formed on the inner surface portion with a groove GR, so that the brush holder 60 in the opening 71a the base plate 71 which penetrate into the groove GR of the inner peripheral wall 72b is fitted. Ie. the brush holder 60 is from the inner peripheral wall 72b surround.

The rotary shaft 31 is at the other end section with slip rings 61 trained, and the slip rings 61 the rotary shaft 31 be in the inner hollow area of the brush holder 60 inserted, and are freely rotatable therein. The control unit 7 is also with brushes 62 provided by the brush holder 60 be held so that the brushes 62 the slip rings 61 the rotary shaft 31 contact sliding or sliding.

The control unit 7 contains switching components 73 , which on the inner surface of the base plate 71 are firmly mounted. Other switching components, such as. B. an integrated control circuit (integrated circuit) and used for controlling the field current transistors, which are not in 2 Incidentally, they are also shown on the inner surface of the base plate 71 of the inverter housing 70 firmly mounted.

The control unit 7 contains a filling area 74 which is formed after the electrical connection of the switching components by the Harzeinsatzausformung. Ie. Resin, such as. As casting resin, is in the inverter housing 70 filled, so that the switching components and the connecting portions, including the busbars under the switching components in the filling area 74 to be burried.

4 shows a circuit diagram of the control unit 7 ,

The control unit 7 includes a three-phase converter circuit 730 , consisting of three switching component pairs 73 , The switching component pair 73 per phase contains a pair of MOS transistors.

Ie. the switching device pair (MOS transistors) corresponding to the U phase is the switching device 73U1 of the upper branch and the switching component 73U2 of the lower branch, which are connected in series and the switching component 73U1 of the upper branch is with the plus-side busbar 75b connected, as well as the switching component 73U2 of the lower branch is with the minus-side busbar 75a connected.

The switching component pair 73V1 and 73V2 of the upper branch and the lower branch corresponding to the V phase is respectively with the plus side bus bar 75b and the minus-side busbar 75a connected.

The switching component pair 73W1 and 73W2 of the upper branch and the lower branch corresponding to the W phase is respectively with the plus side bus bar 75b and the minus-side busbar 75a connected.

Surface diodes D are each with the switching components 73 connected to the upper and lower branch. The DC flow directions of the diodes D are through the switching devices 73 of the respective upper and lower branch against the direct current directions vice versa.

The control unit 7 includes a field current control transistor, such as. B. a MOS transistor 77 , a fly-wheel diode 78 , and a controller 79 with which the gate of the field current control transistor 77 and the cathode of the fly-wheel diode 78 are connected. The control unit 79 consists of integrated circuits.

The anode of the fly-wheel diode 78 is through the terminal F of the inverter circuit 730 with the field coil 34 connected, and the source of the control transistor 77 is with the anode of the fly-wheel diode 78 connected. This circuit arrangement allows the control transistor 77 through the fly-wheel diode 78 based on the control of the controller 79 to supply supplied field current.

The switching components 73U1 and 73U2 are through a U-phase AC bus 70U with the feed wire 21c the U-phase winding 21 (U) connected. The switching components 73V1 and 73V2 are through a V-phase AC bus 70V with the feed wire 21c the V-phase winding 21 (V) connected. The switching components 73W1 and 73W2 are through a W-phase AC bus 70W with the access wire 21c the W-phase winding 21 (W) connected.

The busbars contain a large number of low current busbars, by which, compared to the busbars 70U . 70V . 70W . 75a and 75b , a low current flows. The low current busbars are between each component of each three phase inverter circuit 730 and the controller 79 , and between each gate (each control terminal) of each switching device 73 and the controller 79 connected. These low current busbars are in the inverter housing 70 formed integrally, but since each bus bar is flat, the low-current wires in the filling area 74 covered or covered, without in or with the inverter housing 70 to be formed integrally.

Ie. the busbars 70U . 70V . 70W . 75a and 75b are in the inverter housing 70 buried by Harzeinsatzausformung, the busbars as high current (DC) busbars of the three-phase converter circuit 730 serve.

The control unit 7 is with the second housing 4 integrated so that the minus-side busbar 75a close to the outer end wall 4b of the second housing component 4 coaxially contacted to be fixed thereto. Ie. the control unit 7 is through the minus-side busbar 75a with the second housing 4 grounded.

On the other hand, the motor generator 1 with a substantially cylindrical cover or resin cover 87 provided having an opened end portion. The resin cover 87 is at its inner periphery of the open end portion at the outer end wall 4b of the second housing component 4 attached to the inverter housing 70 cover.

In the first embodiment, an inner surface of the end wall 87a the resin cover 87 at a space to the outer surface of the base plate 71 appropriate. The space will hereinafter be referred to as "cooling air passage" PA.

5 and 6 show the control unit 7 schematically, as well as arrangements of the components of the control unit, their electrical connections with each other, and their cooling structure will be explained in detail below.

The control unit 7 is with a number of z. B. three connecting walls 700a1 . 700a2 and 700a3 which extend from inner portions of the outer peripheral wall 72a along the radial direction up to the inner peripheral wall 72b extend. The connecting walls 700a1 . 700a2 and 700a3 consist of resin, and are integrally formed with busbars.

The other end portion of the plus-side busbar 75b2 the positive side busbar 75a branch off into three busbar links Lb1-Lb3, and extend individually from the inner peripheral wall 72b through the connecting walls 700a1 . 700a2 and 700a3 ,

The switching components 73U1 and 73U2 that correspond to the U phase are on the inner surface of the base plate 71 on both sides of the connecting wall 700a1 mounted, in which the U-phase alternating current rail 70U is buried. Likewise, the switching elements corresponding to the V phase are 73V1 and 73V2 on the inner surface of the base plate 71 on both sides of the connecting wall 700a2 arranged in which the V-phase alternating current rail 70V is buried. The switching components corresponding to the W phase 73W1 and 73W2 are on the inner surface of the base plate 71 on both sides of the connecting wall 700a3 arranged in which the W-phase alternating current rail 70W is buried.

Each of the switching components 73U1 . 73V1 and 73W1 is directly on the inner surface of the base plate 71 soldered, and each of the switching components 73U2 . 73V2 and 73W2 is by electrical insulation layers 710 on the inner surface of the base plate 71 fixed.

The base plate 71 which the cooling fins 711 contains is with either the plus side busbar 75b or the minus-side busbar 75a connected, ie electrically connected or integrated, so that the potential of the heat sink (base plate 71 and the cooling fins 711 ) is fixed either to the potential corresponding to the positive-side line or to the potential corresponding to the minus-side line.

Ie. According to this arrangement, the switching components 73 through the positive-side busbar 75b or the minus-side busbar 75a be cooled. In addition, it flows from the positive side busbar 75b or the minus-side busbar 75a supplied DC power through the heat sink ( 711 and the base plate 71 ), so that the bus bar wiring is simplified.

Especially if the base plate 71 which the cooling fins 711 contains, with the busbar 75b is connected, it is possible the DC output terminal B at any point of the base plate 71 and the cooling fins 711 directly to install. This makes it possible to simplify the wiring arrangement of the DC output terminal B and expand the choices of what an attachment point of the DC output terminal B and its extraction direction.

The base plate 71 can be divided into a plurality of base plate members on which the switching components 73 individually mounted. The minus-side busbar 75a can in the filling area 74 be buried, and the plus-side busbar 75b can in the filling area 74 to be buried.

Each of the switching components 73 , which corresponds to the same phase, such. B. switching components 73U1 and 73U2 has one of the connecting wall 700 opposite surface on. Each of the in-phase switching components 73 also has a pair of plate-like main electrode terminals TE1 and TE2 (source and drain) and a plate-like gate TG. The main electrode terminals TE1, TE2 and the gate terminal TG are toward the connection wall 700 forth, and are from the base plate 71 (please refer 7 ) bent away.

The busbar links Lb1, Lb2 and Lb3, which are in the respective connecting walls 700a1 . 700a2 and 700a3 are buried, stand equally in the direction of the corresponding switching components. The projecting busbar members Lb1, Lb2 and Lb3 are from the base plate 71 bent so that each of the bus bar members Lb1, Lb2 and Lb3 is contacted to the main electrode terminal T2 (drain terminal) of each of the switching devices 73U1 . 73V1 and 73W1 to be welded.

Gate busbars GB, which are included in the power busbars and in the corresponding connecting walls 700a1 . 700a2 and 700a3 are buried, stand out in the direction of the corresponding switching components. Each of the gate current rails is from the base plate 71 bent so that each of the gate bus bars is contacted to connect to each of the gate terminals TG of each of the switching devices 73 ( 73U1 . 73V1 . 73W1 . 73U2 . 73V2 . 73W2 ) to be welded. Each of the gate power rails is also connected to the controller 79 connected.

The AC busbars 70U . 70V and 70W the three-phase converter circuit 730 are in the connecting walls 700a1 . 700a2 and 700a3 buried. The AC busbars 70U . 70V and 70W are configured to be connected between the main electrode terminal (source terminal) TE1 of each of the switching devices 73U1 . 73V1 and 73W1 of the upper branch respectively to the main electrode terminal (drain terminal) TE2 of the switching devices 73U2 . 73V2 and 73W2 of the lower branch. The AC busbars 70U . 70V and 70W extend individually to the outside in the radial direction respectively in the connecting walls 700a1 . 700a2 and 700a3 , An end portion of each of the AC busbars 70U . 70V and 70W further extends into the outer peripheral wall 72a and projects radially outwardly therefrom to have an end portion 21d each of the feeder wires 21c the stator windings 21 (please refer 2 and 6 ) to be connected. The wiring between the switching components 73 and the stator winding 21 is completed accordingly.

Each of the bus bars La1, La2 and La3 are contacted to connect to the main electrode terminal (source terminal) TE1 of each of the switching devices 73U2 . 73V2 and 73W2 to be welded. The busbar members La1, La2 and La3 extend along the head surface and the lower switching components to be bent 73U2 . 73V2 and 73W2 , and further extend in the radial direction to from the head surface of the lower switching components 73U2 . 73V2 and 73W2 protrude. The busbar members La1, La2 and La3 then become the direction of the inner surface of the base plate 71 bent to pierce the base plate, whereby the cooling fins (described below) are contacted, which with the minus-side busbar 75a that the grand (see 7 ) are connected.

Other low-current connections of the switching components 73 can with the low-current busbars, which in the connecting wall 700 is buried, connected. In the first embodiment, the low-current bus bars are in the filling area 74 buried.

The connection arrangement between the main electrode terminal and the minus-side busbar 75a Incidentally, it is not limited to the above arrangement.

Other connection arrangements between the main electrode terminal and the minus-side busbar 75a are explained below.

Ie. the other end section 75a2 the minus-side busbar 75a branches off into three busbar links La1-La3, and these extend individually from the outer peripheral wall 72a through the connecting walls 700a1 . 700a2 and 700a3 ,

The busbar links La1, La2 and La3, which are in the respective connecting walls 700a1 . 700a2 and 700a3 are buried, stand out in the direction of the corresponding switching components. The projecting busbar members La1, La2 and La3 are of the base plate 71 bent away, so that each of the bus bars greater than or less than 1, greater or less than 2 and greater or less 3 is contacted to connect to the main electron terminal TE1 (source) of each of the lower switching devices 73U2 . 73V2 and 73W2 to be welded.

On the other hand, partitions extend 720 from adjacent corner portions of the inner peripheral wall 72b to the outer peripheral wall 72a so that the partitions 720 , the inner peripheral wall 72b and the outer peripheral wall 72a on the inner surface of the base plate 71 Provide parking space or parking space for a control unit. Ie. the space for the control unit is from the remaining space of the base plate 71 separated, in which the switching components 73 are arranged.

The control unit 79 , the field current control transistor 77 and the fly-wheel diode 78 are each arranged in the control room of the control unit. Busbars, which are the connecting strands of the brushes 60 with the transistor 77 and the fly-wheel diode 78 connect, are integral with the inverter housing 70 formed.

Incidentally, reference numeral designates 701 a connector 701 that controls the communication between external devices and the controller 79 allows. Port B is a positive side high voltage from the battery 740 exposed. Port B is from the power rail 75B in the radial direction outward.

The base plate 71 is additionally with cooling fins 711 each of which is radially in a stationary state on the outer surface of the base plate (see FIG 1 and 6 ) is arranged. Ie. the cooling fins 711 are located in the cooling air passage PA, so that the base plate 71 which the cooling fins 711 contains, serves as a heat sink. In the first embodiment, the base plate is 71 with the plus-side busbar 75b combined. Otherwise, the cooling fins 711 integral on the outer surface of the base plate 711 soldered, bolted or the like.

Moreover, the resin cover is 87 on the outer periphery of the end wall 87a with a plurality of inlet slots 711 each of which is arranged at fixed intervals in the radial direction.

As in 1 and 2 shown are the inlet slots 712 preferably around a circular boundary surface of the end wall 87a arranged around. The circular delimitation area is the surface of the brush holder 60 across from. The cooling fins 712 are located opposite the gap between the respective adjacent cooling fins 711 ,

Below is the operation of the motor-generator 1 described as a motor and as a generator.

First, if the vehicle in which the motor generator 1 is operated by the driving force of the engine, the rotation of the crankshaft of the engine is transmitted through the belt mechanism of the pulley P. The field current is then removed from the battery 740 through the field current control transistor 77 , the brushes 62 , the slip rings 61 and the rotary shaft 31 to the field coil 34 of the rotor 6 provided. The through the field coil 34 flowing field current generates a magnetic field, which is the rotor 25 in relation to the stator 5 turns, and in the three-phase stator windings 21 Three-phase alternating currents generated. The three-phase alternating currents are through diodes D of the switching components 73 rectified to DC, so that the DC power is output from the terminal B to be supplied to the load L. As a result, it is possible to drive the load L while the vehicle is running.

On the other hand, after the vehicle waits, for example, for a signal change of the traffic light so that an engine control unit (not shown) executes the idling stop function to shut off the idle engine, the engine control unit transmits a control signal to the controller upon restarting the engine of the vehicle 79 , The control unit 79 receives the control signal through a terminal B and controls the switching on and off of the switching devices 73 according to the phase (position) of the rotor 6 in its rotational direction, which is detected by a position detecting sensor (not shown).

The operation of the switching components causes the rotor 6 in relation to the stator 5 together with the rotary shaft 31 rotates, causing the rotation of the rotary shaft 31 is transmitted through the pulley P and the belt mechanism to the crankshaft of the engine. As a result, it is possible to assist the rotation of the crankshaft of the engine when starting the vehicle after the idling stop mode.

Next, the cooling operation of the motor-generator 1 described below.

The rotation of the rotary shaft 31 along with the first and second radial fans 33a and 33b causes a vacuum near the fan 33a and 33b in the case 2 , The negative pressure causes air outside the resin cover 87 through the inlet slots 712 in the cooling air passage PA in the axial direction (see arrow C1 in FIG 2 ) is sucked.

Because the cooling fins 711 the base plate 71 radially in the standing or standing state on the outer surface of the base plate 71 are arranged in the cooling air passage PA, the cooling air impinges on the cooling fins 711 to this and the base plate 71 to cool effectively.

The air flows through the cooling fins 711 on the outer surface of the base plate 71 to be deflected in the radial direction. Because the switching components 73 , the control unit 79 etc. on the base plate 71 are mounted, it is possible to cool these well.

The deflected air also flows into an annular gap SPALT1 (see 2 ) between the outer side surface of the outer peripheral wall 72a and the inner side surface of the resin cover 87 along the outer side surface of the outer peripheral wall 72a in the direction of the housing 2 , Moreover, the deflected air flows into an annular gap SPALT2 (see 2 ) between the inner side surface of the inner peripheral wall 72b and the brush holder 60 (the rotary shaft 31 ) along the inner side surface of the inner peripheral wall 72b in the direction of the housing 2 ,

The air flowing through the housing also flows through the fourth air passages 41b in the case 2 , and is from the second air passages 41b (see arrow C2 in 2 ).

As described above, in the first embodiment, the inverter housing 70 the cylindrical shape and the open head end. Ie. the inverter housing 70 consists of the base plate 71 , which serves as a heat sink, the outer peripheral wall 72a that with the minus-side busbar 75a integrated, and the inner peripheral wall 72b connected to the positive side busbar 75b is integrated.

Ie. In the first embodiment, it is possible to use the inverter circuit 730 in the inverter housing 70 , which with the annular busbars 75a and 75b is integrated, as well as in the filling area 74 buried converter circuit 730 maintained with their electrical insulation, which acts as a heat sink without a special resin cover to accommodate.

Meanwhile it is possible the control unit 7 be designed so that this even the cylindrical shape with the open head and with their by the ... the housing 70 protected outer end portion, which allows the control unit 7 to downsize, although the electrical insulation, crash characteristics, and vibration resistance of the control unit 7 maintain. additionally is the minus side busbar 75a at the outer end wall 4b of the second housing component 4 fixed so that the control unit 7 through the minus-side busbar 75a with the second housing 4 is grounded. This arrangement results in simplification of the grounding wiring of the control unit 7 because the case 2 of the motor generator 1 usually grounded, and prevents the control unit 7 oscillates.

Because the plus-side busbar 75a in the tubular or circular outer peripheral wall 72a is arranged, and the minus-side busbar 75b in the tubular or circular inner peripheral wall 72b is arranged, it is possible, even if the switching components 73 on the base plate 71 are arranged in a ring shape, the respective switching elements 73 evenly supplied with direct current.

Moreover, the outer surface of the base plate 71 on which the inverter circuit components are fixedly mounted open around the inner surface of the resin cover 87 opposite, so that through the inlet slots 712 the resin cover 87 introduced air flow on the cooling fins 711 meets to cool these effectively.

Furthermore, it is in the arrangement of the motor-generator 1 simply the inverter circuit components including the switching components 73 and the controller 79 on the inner surface of the base plate 71 to mount, because the inverter housing 70 has a cylindrical shape with the open head end. In addition, allows the configuration of the inverter housing 70 in that the inverter housing 70 by its open head end easily to the second housing 4 can be attached.

In the first embodiment, the AC busbars 70U - 70W and bus bus bars Lb1-Lb3 in the connection walls 700a1 . 700a2 and 700a3 bury to the switching components 73 on both sides to connect their. The present invention is not limited to this arrangement.

Ie. as in 8th schematically illustrated, the terminals TE1a, TE2a and TGa of the respective switching components 73U1 . 73U2 . 73V1 . 73V2 . 73W1 and 73W2 from the other surface opposite the outer peripheral wall 72a protrude. The AC busbar 70uA the U-phase, the AC busbar 70VA the V-phase, the AC busbar 70Wa the W-phase, the minus-side busbar 75a and the plus-side busbar 75b can in the outer peripheral wall 72a be buried.

The AC busbar 70uA can be between the terminal TE1 and the switching component 73U1 and the terminal TE2 of the switching device 73U2 be connected, as well as the AC busbar 70VA can between the terminal TE1 of the switching component 73V1 and the terminal TE2 of the switching device 73V2 get connected. The alternating current 70Wa can be between the terminal TE1 and the switching device 73W1 and the terminal TE2 of the switching device 73W2 get connected. The connections TE2 of the switching components 73U1 . 73V1 and 73W1 of the upper branch can with the plus-side busbar 75b in the outer peripheral wall 72a get connected. The connections TE1 of the switching components 73U2 . 73V2 and 73W2 of the lower branch can with the minus side busbar 75a in the outer peripheral wall 72a connected. The gate connections can be made with the gate current bus, which is in the outer peripheral wall 72a is buried, connected.

In the first embodiment, each of the switching components and the controller 79 on the same inner surface of the base plate 71 mounted in parallel. This allows the air flow, which flows in the radial direction, to each of the switching components 73 and the controller 79 cools at approximately equal temperatures, and the switching components 73 and the controller 79 evenly cools.

Since in the first embodiment, the inner peripheral wall 72b is formed on its inner surface portion with the groove GR, it is possible to the brush holder 60 in the groove GR of the inner peripheral wall 72b to install, eliminating the brush holder 60 kept light. Incidentally, part of the inner peripheral wall 72b be made of resin, and the resin part of the inner peripheral wall 72b Can be used as a brush holder to hold the brushes 62 be used.

In the first embodiment, after the air flows in the radial direction through the cooling air passage PA, the air flow can be applied directly to the brushes 62 for cooling impinge, or the pigtail, which brushes with the control transistor 77 connects impinges to indirectly cool them.

Moreover, this is the controller 79 as in 5 shown externally of the brush holder 60 arranged in the radial direction, which allows the wires, which the control transistor 77 and the brushes 62 connect, shorten, without the cooling ability with respect to the switching component 73 to worsen.

Further, in the first embodiment, the components of the inverter circuit including the switching components 73 and the controller 79 between the inner peripheral wall 72b and the outer peripheral wall 72a are arranged in the filling area 74 is included, it is possible to make the switching components of the converter circuit sufficiently waterproof.

In the first embodiment, on the circular boundary surface opposite to the surface of the brush holder 60 in particular no inlet slots 712 designed so that little air in the brush holder 60 what makes it possible to prevent air from entering the brush holder 60 remains.

In addition, as in 9 shown the cooling fins 711a spirally or vertically standing on the outer surface of the base plate 71 to be ordered.

Second Embodiment

The motor generator 1 according to a second embodiment is as in 10 shown with a converter housing 70A provided, which at its open head end with a cover member 713 , which is the open head end of the inverter housing 70A covering, trained. The cover member 713 is made of die-cast aluminum or resin, for example. The inverter housing 70A is also with cooling fins 714 provided on a motor housing side end surface of the cover member 713 are formed and arranged radially at predetermined intervals. The cooling fins 714 Stand from the motor housing side end surface of the cover member 713 in the axial direction.

In the second embodiment, the cover member serves 713 as minus-side busbar and the cooling fins 714 are accordingly formed so that they the outer end portion of the second housing 4 contact, causing them to be grounded.

Other components of the motor-generator 1A of the second embodiment are substantially the same as those of the motor generator 1 identical according to the first embodiment, which can be dispensed with an explanation of the other components.

In the second embodiment, the air flows after the air in the annular gap SPALT1 (see 2 ) between the outer side surface of the outer peripheral wall 72a and the inner side surface of the resin cover 87 along the outer side surface of the outer peripheral wall 72a in the direction of the housing 2 flows through the cooling fins 714 in the radial direction to the cooling fins 714 itself as well as the cover member 713 to cool, so that the cover member 713 indirectly the switching components 73 cools. The cover member 713 and the base plate 71 are configured to substantially the switching components 73 to surround it to shield it electromagnetically. The filling area made of resin 74 is filled in the chamber, which consists of the cover member 713 , the base plate 71 , the outer peripheral portion 72a and the inner peripheral portion 72b is trained.

The motor generator 1A of the second embodiment, as described above, compared with the motor generator 1 In the first embodiment, improved cooling ability and mechanical strength.

Third Embodiment

11 is an enlarged partial view of a part of the motor-generator 1B according to a third embodiment of the present invention.

The motor generator 1B is with a resin cover 870 which with a variety of ribs 87b is formed, provided. Ribs 87b which serve as guide ribs in the present invention are radially standing on the end wall 87a the resin cover 870 in the direction of the base plate 71 arranged so that the ribs 87b each between the adjacent cooling fins 711 are located.

Ie. the cooling fins 711 and the ribs 87b are arranged alternately in the circumferential direction.

Other components of the motor-generator 1B of the third embodiment are identical to those of the motor-generator 1 according to the first embodiment, thereby disregarding an explanation of the other components.

In the third embodiment, the arrangement of the cooling fins 711 and the ribs 87b the gap between the cooling fins 711 and the ribs 87b wherein the gaps form cooling air passages PA1 according to the third embodiment, which measures the flow of the intake air through the intake slots 712 allow inward in the radial direction.

Ie. each sectional area of each cooling air passage PA1 in the circumferential direction is reduced as compared with that of the cooling air passage PA of the first embodiment, which makes it possible to increase the flow velocity of the air flowing through the cooling air passage PA1, thereby improving the cooling capability of the motor generator 1B is improved.

Otherwise, the cooling fins 711a , as in 9 shown, sprialförmig or vertically standing on the outer surface of the base plate 71 be arranged, and equally can the ribs 87b spirally or vertically standing on the end wall 87a the resin cover 87 in the direction of the base plate 71 be arranged standing.

In addition, it is possible that in the third embodiment, the resin cover 87 the outer surface of the outer peripheral wall 72a does not cover, and with this arrangement, air can be introduced inwardly into the cooling air passages PA1, which are opened in the radial direction.

If the resin cover 87 the outer surface of the outer peripheral wall 72a moreover, as in 1 and 2 As shown, air flowing into the annular gap SPALT1 may be introduced inwardly into the cooling air inlets PA1 opened in the radial direction.

Fourth Embodiment

12 is an enlarged partial view of a part of the motor-generator 1C according to a fourth embodiment of the present invention.

The motor generator 1C is with a substantially tubular protective wall 43 provided which extends from the inner periphery of the outer end wall 4b of the second housing component 4 towards the resin cover 87 extends to the projecting end portion of the rotary shaft 31 to surround. Incidentally, the brushes (not shown) extend from the brush holder (not shown) through a window portion (not shown) in the protective wall 43 into it, with the slip rings 61 To make contact.

In addition, there is the inverter housing 70C from a base plate 721 with a substantially annular shape and has an opening 721a in the middle area. The base plate 721 is to the second housing component 4 set and is this coaxial. The base plate 721 is made of metal and has the cooling fins 711 (in 12 not shown). Ie. the base plate 721 serves as a heat sink.

The base plate 721 is with a tubular metal section 721b provided integrally from the inner periphery of the opening 721a in the direction of the second housing component 4 extends in the axial direction. The tubular metal section 721b is formed at a part of the extending end portion with a notch N1. The extending end portion of the tubular portion 721b is fixed to the inner periphery of the outer end wall except for the notch N1 4b connected. Ie. the base plate 721 essentially has a flange shape.

The inverter housing 70C consists of a tubular outer peripheral wall 72a1 extending from the outer periphery of the base plate 721 extends in the direction of the second housing component side in the axial direction. The inverter housing 70C also consists of a tubular resin member 722 which is formed on a part of the motor housing side end portion with a notch N2 corresponding to the notch N1. The tubular resin member 722 is fixed to the outer periphery of the tubular metal portion 721b attached, leaving an annular gap SPALT3 between the outer periphery of the protective wall 43 and the inner periphery of the tubular portion 721b lets arise or creates. The tubular metal section 721b and the tubular resin member 722 correspond to the inner peripheral wall 72b1 of the inverter housing 70C ,

The inverter housing 70C also consists of a cover section 79 which has a substantially annular shape. The cover section 79 is between the protruding end portion of the outer peripheral wall 721c and the motor housing side end portion of the tubular resin member 722 inserted or connected to one between the outer peripheral wall 721c and the tubular resin member 722 covered space.

Since the cuts N1 and N2 at the part of the protruding end portion of the tubular metal portion 721b , and the motor housing side end portion of the tubular resin member 722 are formed, is the cover portion 79 on a part of the inner periphery with a sloping surface 79a , formed opposite the incisions N1 and N2. The cover section 79 is made of resin, for example.

Other components of the motor-generator 1C of the third embodiment are identical to those of the motor generator 1 according to the first embodiment, thereby disregarding the explanation of the other components.

In the third embodiment, the base plate 71 not only through the air flowing into the cooling air passage PA, but also through the into the gaps SPALT3 and SPALT4 along the axial direction in the direction of the motor housing 2 cooled air flowing, reducing the cooling capacity of the base plate 71 is increased.

In addition, the gap SPALT4 in the fourth embodiment becomes intermediate between the notches N1, N2 of the inclined surface 79a , and the outer end wall 4b of the second housing component 4 selected so that the air is not sharp is bent or deflected, but smooth through the gap SPALT4 along the inclined surface 79a through the fourth air outlets 72b in the housing component 4 flows.

Moreover, the resin cover decreases 79 from the motor housing 2 radiated heat, so that it is possible to prevent the inverter housing 70 absorbs radiated heat from the motor housing.

In a modification of the third embodiment, as in FIG 13 shown, the tubular resin member 722 a motor generator 1D the modification can not be omitted, so that the tubular metal portion 721b even as an inner peripheral wall 72b2 of the motor generator 1D acts.

Fifth Embodiment

14 is an enlarged partial view of a part of the motor-generator 1E according to a fifth embodiment of the present invention.

The motor generator 1E has an inverter housing 70E on. The inverter housing 70E consists of a base plate 731 , which is made of metal, to serve as a heat sink. The inverter housing 70E has a substantially annular shape, as well as an opening 731a in the middle area. The base plate 731 is to the second housing component 4 set and is this coaxial.

The inverter housing 70E is with an outer peripheral wall 72A2 Mistake. The outer peripheral wall 72a consists of a tubular outer peripheral wall 732a1 , which is made of metal and extending from the outer periphery of the base plate 731 extends in the direction of the side of the second housing member in the axial direction. The first tubular peripheral wall 732a1 is with the base plate 731 integrally formed.

The outer peripheral wall 72a also consists of a second tubular outer peripheral wall 732a2 which is made of resin and located between the outer end wall 4b of the second housing component 4 and the projecting end portion of the first outer peripheral tubular wall 732a1 located.

The converter housing also consists of a tubular inner peripheral wall 72B3 which is made of metal and integrally from the inner periphery of the opening 731a the base plate 731 extends in the direction of the second side of the housing in the axial direction. The tubular inner peripheral wall 72B3 is integral with the base plate 733 formed.

The motor generator 1E is with a substantially cylindrical resin cover 801 provided with an opened end portion. The resin cover 801 is arranged such that the outer periphery of the inverter housing 70 (the outer peripheral wall 72A2 ), whereby a gap (cooling air passage) SPALT5 is interposed between the resin cover 801 and the outer peripheral wall 72A2 arises.

Other components of the motor-generator 1E of the fifth embodiment are identical to those of the motor generator 1 according to the first embodiment, thereby disregarding the explanation of the other components.

In the fifth embodiment, outside the resin cover 801 through the gap SPALT5 in the resin cover 801 introduced, and the introduced air flows toward the inner surface of the end wall 801 the resin cover 801 along the outer periphery of the outer peripheral wall 72A2 in the cooling air passage PA.

The introduced air flows through the cooling fins as in the first embodiment 711 in the radial direction, and flows in the direction of the motor housing side through the gap SPALT2 between the rotary shaft 31 and the inner periphery of the inner peripheral wall 72B3 ,

According to the fifth embodiment, even if there are no inlet slits through the outer periphery of the end wall, the SPALT5 allows 801 are formed, that the air in the resin cover 801 and the inverter housing 70E is introduced. This allows an increase in the area of each of the cooling fins 711 without the flow of the introduced air in the resin cover 801 disturbing, thereby further the cooling effect of the switching components 73 and the controller 79 is increased. Incidentally, a tubular resin member or a tubular resin film becomes the inner periphery of at least one of the outer peripheral wall 72A2 and the inner peripheral wall 72B3 used.

Moreover, similarly to the first embodiment, cooling fins may be provided at least on the outer periphery of the first outer peripheral tubular wall 732a1 , the outer surface of the base plate 731 and the inner periphery of the inner peripheral wall 732b be trained to stand out of it.

Sixth Embodiment

15 is an enlarged partial view of a part of a motor-generator 1F corresponding a sixth embodiment of the present invention.

The motor generator 1F has a variety of cooling fins 720a on which on the outer periphery of the outer peripheral wall 72a are formed. The cooling fins 720 are arranged radially to the outside in addition to the cooling fins 711 protrude.

The motor generator 1F is also with a substantially cylindrical cover 802 provided, which z. B. is made of metal and having an open end portion. The cover 802 is press-formed, and fixed to the inverter housing 70 bolted to the cooling fins 711 and 720a to form a close contact. Ie. the cover 802 surrounds the outer periphery of the inverter housing (the outer peripheral wall 72a ) whereby a gap SPALT6 between the cover 802 and the outer peripheral wall 72a arises.

Other components of the motor-generator 1F of the sixth embodiment are substantially identical to those of the motor-generator 1 according to the first embodiment, thereby disregarding the explanation of the other components.

In the sixth embodiment, outside the cover 802 Air through the gap SPALT6 in the cover 802 introduced, and flows into the gap SPALT6 toward the inner surface of the end wall 801 the cover 802 along the outer periphery of the outer pertiator wall 72a in the cooling air passage PA. When air flows through the gap SPALT6 and the cooling air passage PA, the air hits the cooling fins 720a and 711 to cool them. At this time serves the cover 802 because the cooling fins 720a and 711 are in close contact with the cover, as a heat sink, so that in the inverter housing 70 Heat located easily or effectively through the cooling fins 720a and 711 to the cover 802 is transferred, causing the cooling effect of the inverter housing 70 at a constant size is further improved. Otherwise, the cooling fins 711 and 720a on the inner periphery of the cover 802 be educated. In addition, the cooling fins can 711 and 720a be arranged spirally.

In a modification of the sixth embodiment, there is a cover 803 , as in 16 shown as a modification of the cover 802 from a number of z. B. three thin circular aluminum plates 821 . 831 and 841 , The circular plate 821 is coaxial with the base plate 71 fixed to have a high heat capacity by contact therewith, and a space S1 between the outer surface of the base plate 71 and the inner surface of the circular plate 821 to provide in the radial direction.

The circular plate 833 is coaxial with the circular plate 821 fixed to have a high heat capacity by contact therewith, and a space S2 between the outer surface of the circular plate 821 and the inner surface of the circular plate 831 to form in the radial direction.

The circular plate 841 is coaxial with the circular plate 831 fixed to have a high thermal capacity by contact therewith, and a space S3 between the outer surface of the circular plate 831 and the inner surface of the circular plate 841 to form in the radial direction. These spaces S1 to S3 form a compound (communicated) with an exterior of the cover 803 , Through holes TH are formed around the circular plates 821 and 831 coaxially pierced so that the through-holes TH are communicated with the spaces S1 to S3 (communicated among).

In this modification will be outside the cover 803 introduced air through the spaces S1, S2 and S3 and this flows into the spaces S1, S2 and S3 along the plate surfaces of the plates 821 . 831 and 841 , When air flows into the spaces S1, S2 and S3, the plates become 821 . 831 and 841 cooled by air, so that the base plate 71 (inverter housing 70 ), which with the plate 821 Contact forms and has a high thermal capacity, through the heat transfer process of the plate 821 excellent cooled over it.

Seventh Embodiment

17 is an enlarged partial view of a part of a motor-generator 1G according to a seventh embodiment of the present invention.

In the seventh embodiment, there is a cover 804 , as in 17 shown as a modification of the cover 802 , from a number of z. B. three thin circular aluminum plates 822 . 832 and 842 , The circular plate 822 is press-formed to a variety of convex sections 822a and concave sections 822b designed to be arranged alternately radially. The circular plate 822 is at the base plate 71 coaxially fixed to make contact therewith and have a high thermal capacity, and cooling air passages PA12 between the convex portions 822a and the outer surface of the base plate 71 to provide in the radial direction.

The circular plate 832 is on the circular plate 822 coaxially fixed to make contact therewith and have a high thermal capacity, and cooling air passages PA13 between the concave portions 822b and the inner surface of the circular plate 842 to provide in the radial direction.

The circular plate 842 is press-formed to a variety of convex sections 842a and concave sections 842b designed to be arranged alternately in fixed sections radially. The circular plate 842 is on the circular plate 832 coaxially fixed to make contact with and have a high thermal capacity, and cooling air passages PA14 between the convex portions 842a and the outer surface of the circular plate 832 to provide in the radial direction. The cooling air passages PA12 to PA14 are in contact with the outside of the cover 804 in connection. Through holes TH1 are formed around the circular plates 822 and 832 to pierce, so that the through holes TH1 with the passages PA12, PA13 and PA14 are in communication.

Other components of the motor-generator 1A of the seventh embodiment are substantially identical to those of the motor-generator 1 according to the first embodiment, thereby disregarding an explanation of the other components.

In the seventh embodiment, outside the cover 804 Introduced air introduced through the cooling air passages PA12, PA13 and PA14, and flows into the cooling air passages PA12, PA13 and PA14 along the radial direction. When the air flows in the passages PA12, PA13 and P14, the plates become 822 . 832 and 842 cooled by air, so that the base plate 71 (inverter housing 70 ), which with the plate 822 Contact forms, and has a high heat capacity, by the heat transfer process of the plate 822 is characterized by excellent cooling.

Incidentally, a number of circular metal plates, which the plates 822 . 832 and 842 correspond, z. B. three or more on the outer surface of the base plate 71 (inverter housing 70 ). Moreover, each of the metal plates according to the seventh embodiment may be press-formed to have a substantially cylindrical shape with an open end. In this case, those between the inverter housing 70 and the adjacent metal plate, and spaces formed between adjacent metal plates with the outside of the cover 804 to be in communication (communicated). In addition, each of the metal plates according to the seventh embodiment may be press-formed to have a substantially spiral shape. In this case, the distances between adjacent metal plates must match the exterior of the cover 804 be in touch.

(Eighth Embodiment)

18 is an enlarged partial view of a part of a motor-generator 1I according to an eighth embodiment of the present invention.

In the eighth embodiment, the motor generator 1I , as in 18 shown, an inverter housing 80F on, and the inverter housing 70F is with a cover-integrated base plate 650 , as a modification of the base plate 71 , Mistake. Ie. the cover integrated base plate 650 is made of metal and on the inside with a multitude of through holes 700 integrally formed as cooling air passages. The multitude of through holes 700 are arranged parallel to the radial direction.

The cover integrated base plate 650 is at its middle area with a groove 701 , which is open to the motor housing side, formed. The groove 701 stands with the through holes 700 in connection.

Other components of the motor-generator 1I of the eighth embodiment are identical to those of the motor-generator 1 according to the first embodiment, thereby disregarding an explanation of the other components.

In the eighth embodiment, around the inverter housing 70F air through the through holes 700 introduced to the groove 701 to be collected, and the collected air flows through the inner peripheral wall 72b (in 1 shown) in the direction of the motor housing side, whereby the converter housing 70F is cooled.

In the eighth embodiment, it is possible to omit a cover member.

Ninth Embodiment

20 is an enlarged partial view of a part of a motor-generator 1y according to a ninth embodiment of the present invention.

The motor generator 1y is with a converter housing 70G Mistake. The inverter housing 70G indicates in addition to the arrangement of in 2 . 5 etc. shown inverter housing 70 a tapered ring member 881 which extends from the housing-side end portion of the inner peripheral wall 72b up to one point opposite of the fourth air passage 42b of the second housing member 42 , extends. The tapered ring member 881 is from the inner peripheral wall 72b inclined outwardly at a predetermined angle such that an inner diameter of the tapered ring member 881 increases when a position of the tapered ring member 881 the outer end wall 42b of the second housing 4 approaches. The tapered ring member 881 , the brush holder 60 , and the outer end wall 4b of the second housing component 4 form with each other a tapered ring passage RP.

The inverter housing 70G is also with an annular cover member 882 provided, which extends from the housing-side end portion of the tapered ring member 881 up to the outer peripheral wall 72a extends in the radial direction. The annular cover member 882 is with the outer peripheral wall 72a connected.

Other components of the motor-generator 1y of the ninth embodiment are identical to those of the motor-generator 1 according to the first embodiment, thereby disregarding an explanation of the other components.

In the ninth embodiment, the rotation causes the rotation shaft 31 as in the first embodiment, together with the first and second radial fans 33a and 33b a negative pressure near the fan 33a and 33b in the case 2 , The negative pressure causes outside of the resin cover 87 located air through the inlet slots 712 into the cooling air passage PA (see 2 and 20 ) is sucked.

Because the cooling fins 711 the base plate 71 standing radially on the outer surface of the base plate 71 are arranged in the cooling air passage PA, the sucked air hits the cooling fins 711 to effectively cool them, and the flow is deflected radially. The deflected air flows into the annular gap SPALT2 along the radial direction of the motor housing side.

Since the tapered ring passage RP is formed around the motor housing side of the gap SPALT2, the air flowing out from the gap SPALT2 then flows in the ninth embodiment, while the air flow flows along the tapered ring member 881 extends.

Because the inclination of the tapered ring member 881 with respect to the axial direction, identical with that of the pipe, which in the fourth air passage 72b and the downstream end of the gap SPALT2 connects in the radial direction, the air resistance during the passage of the air through the tapered ring passage RP is small.

Furthermore, the tapered ring member prevents 881 that divides the air into one between the inner peripheral wall 72b and the outer peripheral wall 72a trained space is flowing.

The expansion of the air can be the inverter housing 70 cool quickly and effectively.

In a first modification of the ninth embodiment, an inverter case 70H with a curved ring member 881a instead of the tapered ring member 881 intended. The curved ring member 881a is from the inner peripheral wall 72b curved outwardly at a predetermined angle such that an inner diameter of the curved ring member 881a increases when a position of the curved ring member 881a the outer end wall 42b of the second housing 4 approaches. The curved ring member 881a , the brush holder 60 and the outer end wall 4b of the second housing component 4 form with each other a tapered ring passage RP1.

The first modification can achieve substantially the same effects as the ninth embodiment.

In a second modification of the ninth embodiment, an inverter case 70I with a variety of guide blades 883 provided opposite the tapered ring passage RP. The guide blades 883 extend along the axial direction. The guide blades 883 are arranged radially at fixed intervals.

These guide blades 883 prevent the air flowing into the tapered ring passage RP from propagating in the circumferential direction, allowing the air to be likely to flow from the downstream end of the gap SPALT2 toward the fourth air passages 42b of the second housing component 4 flows.

Tenth Embodiment

23 is an enlarged partial view of a part of a motor-generator 1K according to a tenth embodiment of the present invention.

The motor generator 1K is with a converter housing 70J provided, which is a modification of the inverter housing 70G is. The inverter housing 70J is at a portion of the tapered ring member 881 with a first opening 884a educated. The section of the first opening 884a is at least one of the fourth air outlets 42b across from. The inverter housing 70J is also on a section of the base plate 71 with a second opening 884b educated. The second opening 884b is opposite to the first opening in the axial direction, and is connected to the cooling air passage PA.

The inverter housing 70J is with a tubular member 885 which is in the first and second openings 884a and 884b is inserted, provided to an air hole 884 through the tubular member 885 provided.

Other components of the motor-generator 1K The tenth embodiment are identical to those of the motor-generator 1 according to the first embodiment, thereby disregarding an explanation of the other components.

In the tenth embodiment, the radially deflected air flows through the second opening 884b , the air hole 884 , and the first opening 884a in the fourth air outlets 42b in addition to the passage of the gap SPALT2 and the tapered ring passage RP.

The increase of the air passage between the resin cover side and the inner side of the second housing 4 also causes the areas of the air passages therebetween to increase so that a large amount of air passes through the inverter housing 70J what allows it to cool, flows with respect to the inverter housing 70J to improve.

Eleventh Embodiment

24 is an enlarged partial view of a part of a motor-generator 1L according to an eleventh embodiment of the present invention.

The motor generator 1L is at its position of the flange portion 29a the bearing holder Bb with a first air hole 886a formed, which pierces this in the axial direction. The motor generator 1L is in addition to its position of the outer end wall 4b with a second air hole 886b formed, which pierces this in the axial direction. The first air hole 886a and the second air hole 886b are arranged coaxially and communicate with each other. Ie. the first and second air holes 886a and 886b see an air passage 886 which provides a connection between the tapered annular passage RP and the inner side of the second housing component 4 manufactures. Incidentally, the bearing of the bearing Bb from the position of the first air hole 886a free.

Other components of the motor-generator 1L The eleventh embodiment is identical to that of the motor generator 1 according to the first embodiment, thereby disregarding explanations of the other components.

In the eleventh embodiment, the air flowing into the tapered ring passage RP flows through the air passage 886 in the inner side of the second housing component 4 in addition to the fourth air passages 42b ,

The increase of the air passage between the resin cover side and the inner side of the second housing 4 also causes a resistance representing the capability of interrupting the decrease of the air flow therebetween, in other words causing the areas of the air passage therebetween to rise. Accordingly, a large amount of air flows through the inverter housing 70G , which allows the cooling capability with respect to the inverter housing 70G to improve.

Twelfth Embodiment

25A FIG. 10 is an enlarged partial view of a part of a motor-generator according to a twelfth embodiment of the present invention. FIG.

An inverter housing 70K the twelfth embodiment, which is a modification of the inverter housing 70G is at least with a partial ring member 887 provided which extends from the inner periphery of the annular cover member 882 up to the outer end wall 4b of the second housing component 4 extends. The at least partial ring member 887 becomes at the outer end wall 4b airtight contacted. Ie. the at least partial ring member 887 prevents air in an annular space AS, which between the annular cover member 882 and the outer end wall 4b is formed, flows.

Ie. the at least partial ring member 887 prevents air from flowing in the annular space AS, allowing the air to be caused to flow smoothly into the fourth air passages 42b flows.

In a first modification of the twelfth embodiment, an at least partial ring member extends 887a , as in 25B shown from the outer end wall 4b of the second housing component 4 to the inner periphery of the annular cover member 882 , The at least partial ring section 887a becomes airtight on the inner periphery of the annular cover member 882 contacted. This first modification achieves the same effects as the twelfth embodiment. In a second modification of the twelfth embodiment, at least one partial ring member extends 887b , as in 25C shown from the outer end wall 4b of the second housing component 4 to the inner periphery of the annular cover member 882 , Of the at least partial ring section 887b is contacted at the inner periphery of the annular cover member airtight. This first modification achieves the same effects as the twelfth embodiment.

Thirteenth Embodiment

26A is an enlarged partial view of an arrow of a motor-generator 1M according to a thirteenth embodiment of the present invention.

The motor generator 1M is with a converter housing 70N provided, which with the in 20 shown inverter housing 70G is identical, provided. Ie. the inverter housing 70N consists of, in addition to the arrangement of the inverter housing 70 as in 2 . 5 etc. shown, from a tapered ring member 881 and the annular cover member 882 ,

The motor generator 1M According to the thirteenth embodiment, the configuration characteristic has the DC output terminal B to the inverter housing 70N attach.

Ie. the base plate 71 including the cooling fins 711 is with the positive side busbar 75b connected so that the base plate 71 the plus-side line of the converter circuit 73 equivalent.

The motor generator 1M is with a connection member 890 which integrally extends from the outer periphery of the base plate. The connecting member 890 has substantially an L-shape in its axial cross-section. Ie. the connecting member 890 is with a bottom link 890a provided which extends from the outer periphery of the base plate 71 extends in the radial direction. The connecting member 890 is also with an extension area 890b provided which extends from the extended end of the bottom section 890a extends in the direction of the motor housing side in the axial direction. The extending section 890b is with a mounting hole 890c educated. Incidentally, the installation hole 890c directly on the outer periphery of the base plate 71 can be formed, and in this case, the bottom portion 890a and the extending section 890b be omitted.

The motor generator 1M is with a cylindrical connection block 891 as a terminal support member, provided, wherein the one and the other end are open. The connection block 891 is with a locking stop 892 , which contains a groove provided. The locking stop member 892 is elastically deformable.

A bolt connection 893 is to the terminal member 890 connected. The bolt connection 893 has a head section 893a and the foot section 893b with a bolt section 893c on.

The foot section 893b of the bolt connection 893 pierces the installation hole 890c of the connecting member 890 , and the head section 893a of the bolt connection 893 gets into the installation hole 890c whose built-in.

A nut section 894a is on the inner periphery of the mother terminal 894 trained, and engages in the bolt section 893a of the bolt connection 893 one. The mother terminal 894 is in the groove of Arretierstopglieds 892 inserted. If the mother terminal 894 completely with the bolt connection 893 is screwed, is the mother terminal 894 internally the elastic force of the locking stop member 892 exposed. The bolt connection 893 and the mother terminal 894 correspond to the DC output terminal B.

Other components of the motor-generator 1M The thirteenth embodiment is substantially the same as that of the motor generator 1 identical according to the first embodiment, thereby disregarding an explanation of the other components.

According to the arrangement of the thirteenth embodiment, the base plate 71 and the cooling fins 701 with the plus-side busbar 75b connected so that the potential of the base plate 71 (Cooling fins 711 ) the potential of the positive side line of the converter circuit 73 equivalent.

Accordingly, it is possible to have the DC output terminal B at any position of the base plate 71 and the cooling fins 711 to join. This enables simplification of the wiring arrangement of the DC output terminal B, and the selection range for the terminal of the DC output terminal B and the extraction direction thereof.

In addition, an adjustment allows the length of the terminal member from the outer periphery of the base plate 71 because the DC output terminal B through the terminal member 890 and the connection block 891 is connected, that the position of the DC output terminal B in the radial direction is determined as desired.

Similarly, adjusting the length of the terminal member in the axial direction allows the position of the DC output terminal B in the axial direction to be determined as desired.

Furthermore, the adjustment allows the position of the terminal member to the outer periphery of the base plate 71 in the circumferential direction, that the position of the DC output terminal B in the circumferential direction can be determined as desired.

Further, in the thirteenth embodiment, the DC output terminal B at the outer periphery of the base plate 71 through the connecting member 890 and the connection block 891 connected, which allows an increase in the axial length of the control unit 7 can be maintained. In addition, the locking stop member contacts 892 the mother terminal 894 elastic, around the nut connection 894 to lean inwardly elastically when the nut connection 894 is turned to completely on the bolt connection 893 screwed on, which causes the mother terminal 894 does not turn in the opposite direction ,. It is therefore prevented that the mother terminal 894 relaxes, even if the mother connection 894 oscillates.

In a modification of the thirteenth embodiment is a bolt terminal 895 according to the first embodiment of the same material as the material of the base plate 71 made, and thus integrally formed.

Ie. if the base plate 71 is formed by die casting, the mold, which has first and second nests prepared. The first nest corresponds to the shape of the base plate 71 , and the second nest corresponds to the bolt connection 895 and is connected to the first nest.

When molten metal member, for. As alumina, is inserted into the nest, the base plate 71 , which with the bolt connection 895 integrated, formed after cooling of the nest.

The bolt connection 895 is from the outer periphery of the base plate 71 in the radial direction outward. On the outer periphery of the foot section of the bolt connection 895 , becomes a bolt connection 895a formed with a tap or similar tools.

Similarly as in the thirteenth embodiment, the mother terminal 894 with the foot section of the bolt connection 893 screwed to the groove of the locking stopper 892 to be inserted. If the mother terminal 894 completely with the bolt connection 893 is screwed, is the mother terminal 894 internally the elastic force of the locking stop member 892 exposed. The bolt connection 893 and the mother terminal 894 correspond to the DC output terminal B.

In the first modification of the thirteenth embodiment, the integral shape of the bolt terminal allows 895 and the base plate 71 the reduction of the time and labor required for the training as compared to the manufacture of the single formed stud terminal and the base plate.

In a second modification of the thirteenth embodiment, a nut hole is made 896 as in 28 shown by a location on the outer surface of the base plate 71 penetrated. The trained place of the mother hole 896 located on the outside of any of the spaces between adjacent cooling fins 711 (see double dashed line C in 1 ).

A ring connection 897 is instead of the bolt connection on the periphery of the mother hole 896 arranged to be coaxial therewith.

When the same as in the thirteenth embodiment, the bolt portion 893c although the ring connection 897 coaxial with the mother hole 896 is arranged when the bolt connection 893 through the mother hole 896 from the inside of the base plate 71 is inserted to stand out, with the mother hole 896 engaged. In addition, the projecting end portion of the bolt terminal 893 in the ring connection 897 used. The ring connection 897 and the bolt connection 893 correspond to a DC output terminal B which is identical to the DC output terminal B of the thirteenth embodiment.

The projections (heights) of the bolt connection 893 and the ring connection 897 are smaller than or equal to the protrusions of each of the cooling fins 711 ,

According to the second modification of the thirteenth embodiment, it is possible, even if it is difficult, a space around the periphery of the base plate 71 space, which allows a terminal of the output terminal in the radial direction to connect the DC output terminal B1 in the axial direction.

Supernatants of bolt connections 893 and the ring connection 897 are smaller than or equal to the protrusions of each of the cooling fins 711 , which prevents the bolt connection 893 and the ring connection 897 from the cooling fins 711 survive.

In addition, after the ring connection 897 was fixed, a wiring harness 898 and a ferrule 899 , which with the ring connection 897 are firmly connected, between the adjacent cooling fins 711 used. The adjacent cooling fins 711 between which the wiring harness 898 and the ferrule 899 are used, prevent the harness 898 and the ferrule 899 rotate in the circumferential direction when the bolt connection 893 becomes loose (turned backwards), or when the bolt connection 893 to the ring connection 897 connected.

In each of the first to thirteenth embodiments or the modifications thereof, the motor generator may include a member PM for preventing the suction of exhaust air, which is at least at a portion of the outer periphery of the outer peripheral wall 72a is formed to protrude outward along the radial direction thereof.

Ie. the member PM for preventing suction of the exhaust air is located between the fourth air passages 41b and the inlet slots 712 , The exhaust air suction preventing member has sufficient protrusion in the radial direction, so that the exhaust air suction preventing member PM prevents air discharged from the fourth air passages toward the intake ports 712 flows, whereby the suction of the exhaust gas is prevented.

In each of the first to thirteenth embodiments or modifications thereof, the cooling air slots may 712 , as in 30 shown when the motor generator 1 is arranged so that a holding part of the outer circular end surface of the resin cover 87 the motor EN, preferably a remaining holding part of the circular end surface of the resin cover 87 be formed. In this arrangement, air, which is a comparatively high temperature for the effective cooling of the inverter housing 70 in each of the air intake slots 712 sucked.

In each of the first to thirteenth embodiments or modifications thereof, the intake slots are 712 on the outer periphery of the end wall 87a the resin cover 87 (please refer 30A ), but the present invention is not limited to this arrangement.

Ie. the inlet slots 712 can be at corner sections between the end wall 87a and the peripheral wall 87c the resin cover 87 (please refer 31B ) be formed. In this kind of arrangement, the air gets through the inlet slots 712 in the base plate 71 (Cooling fins 711 ) is sucked at an angle of about 45 ° with respect to the axial direction.

Moreover, the inlet slots 712 on the peripheral wall 87c the resin cover 87 (please refer 31C ) be formed. In this kind of arrangement, the air gets through the inlet slots 712 in the base plate 71 (Cooling fins 711 ) is sucked in the radial direction orthogonal or perpendicular to the axial direction.

In the in 31C shown arrangement, the inlet slots 712 not in the places that are on the motor housing side of the base plate 71 in the axial direction are formed.

If as described above, at least a part of the resin cover 87 is directed to oppose the engine EN, preferably no inlet slots on at least a portion of the resin cover 87 designed to prevent hot air in the resin cover 87 is sucked.

In each of the first to thirteenth embodiments or modifications thereof, the sectional areas of the intake slots 712 be even together, but can be changed. For example, some of the intake slots 712 , which at fixed locations in the direction of the resin cover 87 are formed, large sectional areas compared to the sectional areas of the rest. In addition, the distances between adjacent inlet slots 712 be even, but can be changed. For example, distances between adjacent inlet slots 712 narrow or wide in the circumferential direction, compared with the distances between the remaining ones.

(Fourteenth Embodiment)

32 is an axial cross-sectional view showing a motor-generator 900 according to the present invention.

In the fourteenth embodiment, the motor generator includes 900 an inverter 905 as a control unit of the motor generator. The inverter 905 is with a ring or circular plate-like plus-side busbar 901 according to the base plate 71 according to the first and second embodiments, and a ring or arc plate-like minus-side busbar 902 according to the cover member 713 provided according to the second embodiment. The inverter 905 also includes a circular arc plate-like AC track member 903 showing the three (U, V and W) phase alternating current rails 970U . 970V and 970W contains.

Ie. the inverter 905 has the bus bar assembly which is configured such that the plus-side bus bar 901 , the minus-side busbar 902 and the AC busbar member 903 are arranged at fixed intervals in the axial direction.

The inverter 905 includes a resin molding section 910 which is the filling area 74 which is located between each gap of adjacent bus bars corresponds. The resin molding section 910 is formed by inserting resin into each gap of the adjacent bus bars.

Ie. the inverter 905 has a ring or circular arc shape with a fixed width in the axial direction.

In the production of the inverter 905 be the switching components, which the inverter 905 make up on a surface of the minus-side busbars 901 fixed. The busbars 901 to 903 , which serve as heavy current rails (DC rails), and / or low-voltage rails, are arranged at fixed locations in a sub-assembly, which serves as a mold. When insert molding or mold formation of the subassembly or component is performed by the resin, the inverter having the annular or circular bus bar assembly is manufactured.

As in 32 shown is the motor generator 900 For example, a three-phase field coil synchronous motor generator.

The motor generator 900 contains one the rotor 6 corresponding rotor 912 , one the stator 5 corresponding stator 913 , a the housing 2 corresponding housing 914 a power supply terminal corresponding to the DC output terminal B. 916 , and one of the rotary shaft 31 corresponding rotary shaft 917 ,

The motor generator 900 also contains the brushes 62 appropriate brushes 918 , a brush holder 60 corresponding brush holder HO, and the slip rings 61 corresponding slip rings 919 ,

The motor generator 900 Also includes a controller integrated in the connector 920 , one of the resin cover 87 appropriate cover 922 , first and second radial fans 923a and 923b , which the first and second radial fans 33a and 33b correspond and the inverter 905 ,

The rotor 912 , the stator 913 , the case 914 , the rotary shaft 917 , the brushes 918 and the slip rings 919 hereinafter collectively referred to as "motor generator unit" MGE.

The connector integrated regulator 920 is in operation to intermittently control the field current. The configuration of the connector-integrated regulator 920 is well known, so by the explanation of the regulator 920 is disregarded.

The stator 930 is with stator windings 931 and a stator core 932 Mistake. The stator windings 931 are wrapped in the slots. The configuration of the stator is well known.

The rotor 912 is with a rotor core 941 provided, which on the rotary shaft 917 passing through the bearings Ba and Bb in the housing 904 is borne, as well as one around the rotor core 941 wound field coil 942 , The rotor 912 is on the inside of the stator 913 arranged in the radial direction.

The stator windings 931 are three-phase stator windings, and their lead terminals are connected to the corresponding mutual terminals of the inverter 915 connected. The field coil 942 is in operation by the brushes 918 and the slip rings 919 supplied field current to be magnetized to generate a magnetic field. The field current is controlled by the controller.

The inverter 905 is how in 33 shown in operation to each of the mutual power connections of the stator coils 931 of the motor generator 900 to apply a three-phase alternating voltage.

reference numeral 951 denotes a U-phase switching device of the upper branch, reference numeral 952 denotes a V-phase switching device of the upper branch, and a reference numeral 953 denotes a W-phase switching device of the upper branch. reference numeral 954 denotes a V-phase switching device of the lower branch, reference numeral 955 denotes a U-phase switching device of the lower branch, and reference numerals 956 denotes a W-phase switching device of the lower branch. These switching devices each consist of MOS transistors, but may also consist of bipolar transistors, each of which has a surface diode D, IGBTs, each having a surface diode, or other similar transistors.

Each of the transistors 951 to 956 has a DC side main electrode (DC side electrode), an AC side main electrode (AC side electrode), and a control electrode (gate electrode).

Each of the DC side electrodes of the switching device 951 to 953 of the upper branch is with the plus-side busbar 901 and each of the AC side electrodes thereof is connected to each of the U to W AC rails 79U - 79W connected. The switching components 951 to 953 of the upper branch have communication terminals TV1-TV3 for outputting the potentials V1-V3 of the respective AC-side electrodes.

Each of the DC-side electrodes of the switching components 954 to 956 of the lower branch is with the minus-side busbar 902 and each of the AC side electrodes thereof is connected to the UW AC busbars 970U - 970W connected. The switching components 954 to 956 of the lower branch have communication terminals TV4-TV6 for outputting the potentiostat V4-V6 of the respective DC-side electrodes.

Other connections such. B. a terminal for detecting mirror current (mirror current) and a terminal for detecting temperature can be added.

reference numeral 958 denotes a rotation detection sensor 958 for the regular detection of the phase (position) of the rotor 960 and for periodically outputting the detected phase as a rotor position signal.

reference numeral 957 denotes a control unit. The control unit 957 is to receive the rotor position signal, the signals from the communication terminals of the components 951 to 956 , and a control signal, which is operated by at least one outdoor control device. The control unit 957 is also in operation to gate voltages VG1-VG6 of the respective components 951 to 956 based on the received signals, whereby the generated gate voltages VG1-VG6 to the gate terminals G1-G6 of the switching elements 951 to 956 be supplied to each one on and off state of this switchable control.

The plus-side busbar 901 and the minus-side busbar 902 are through the output port 916 with the regulator 920 connected serially and the reference numeral 959 denotes a smoothing capacitor which is located between the positive side busbar 901 and the minus-side busbar 902 is connected, which is upstream of the components 951 to 956 with the regulator 920 is connected in parallel. The circuit arrangement of the inverter 905 is well known, so that additional explanations regarding the circuit arrangement of the inverter 905 is disregarded.

The main layout of the inverter 905 is according to the 32 to 34 explained.

In 34 serves the minus-side busbar 902 as a minus-side cooling fins and the plus-side busbar 901 serves as a plus-side cooling fin, and the AC busbar 970U the U-phase in the AC busbar member 903 serves as a U-phase cooling lamella. reference numeral 966 denotes three phase guide terminals extending from the respective three phase windings. Incidentally, one of the three phase guide terminals in 32 shown.

The power supply connection 916 is with an end portion of the plus-side cooling fin 901 connected, and an end portion of the minus-side cooling fin 902 is through the one end wall 914a of the housing 914 grounded.

The minus-side cooling lamella 902 consists of a circular arc or ring copper plate. The minus-side cooling lamella 902 is at its one end surface (motor housing side end surface) subsequently at one end wall 914a of the housing 914 , and its inner periphery is the brush holder HO (rotary shaft 917 ) across from. The minus-side cooling lamella 902 extends in the radial direction so that its outer periphery of the outer periphery of the housing 914 opposite. The plus-side cooling lamella 901 consists of a circular arc or ring copper plate. The plus-side cooling lamella 901 is a gap with respect to the minus-side cooling fin 902 arranged in the axial direction, and at its inner periphery, opposite the brush holder HO (rotating shaft 917 ) arranged. The plus-side cooling lamella 901 extends in the radial direction so that its outer periphery of the outer periphery of the minus-side cooling fin 902 opposite.

The cooling lamella 970U The U-phase consists of a circular arc copper plate. The cooling lamella 970U the U-phase is between the plus-side and minus-side cooling fins 901 and 902 seconded. The cooling lamella 970U the U-phase is at its inner periphery opposite the brush holder HO (rotary shaft 79 ) arranged. The cooling lamella 970U the U-phase extends in the radial direction so that its outer periphery of the outer periphery of the plus-side and minus-side cooling fins 901 and 902 opposite.

The length of the outer periphery of the U-phase cooling fin 970U in the circumferential direction is not more than one-third of those, each of the plus-side and minus-side cooling fins 901 and 902 ,

Likewise, the cooling fins are 970V the V phase and the cooling fin 970B the B-phase, which each have the same shape of the cooling fin 970U U-phase, arranged at different locations sequentially in the circumferential direction and at the same location as in the axial direction.

Each of the outer peripheries of the cooling fins 970U - 970W is with each feeder connection 966 each phase of the three phase windings which extend in the axial direction (Siege 32 ), connected.

The plus-side and minus-side cooling fins 901 and 902 could be at axially different locations with respect to the axial position of the brushes 918 are located. The plus-side and minus-side cooling fins 901 and 902 , as well as each of the three phase cooling fins 970U - 970W On the other hand, they can be at the same axial locations with respect to the axial locations of the brushes 918 are located. As the regulator 920 on the outer side of the brushes 918 In the radial direction, it is necessary that the plus-side and minus-side cooling fins 901 and 902 , as well as each of the three phase cooling fins 970U - 970W located at circumferential positions, which are outside the circumferential position of the regulator 920 are located. The control unit 957 (in 32 not shown) is on the other end surface of the minus-side cooling fin 902 , which the plus-side cooling lamella 901 opposite, firmly mounted.

The regulator 920 can with the inverter (busbar arrangement) 905 together integrally formed, what the number of elements of the inverter 905 including the regulator 920 , the number of wiring work of the inverter 905 , the number of manufacturing works of the inverter 905 reduced. In addition, the number of exposed wires and connecting portions in the inverter becomes 905 each reduced.

The switching component 951 the U-phase of the upper branch consisting of a MOS transistor chip, is as in 32 shown between the plus-side cooling lamella 901 and the cooling fin 970U the U phase interposed. The DC side electrode of the U-phase switching device 951 of the upper branch is formed on its substrate-side main surface to communicate with the plus-side cooling fin 901 to be connected. The AC-side electrode of the U-phase switching device 951 of the upper branch is formed on its surface side major surface to communicate with the U-phase cooling fin 970U to be connected.

The V-phase switching component 952 consisting of a MOS transistor chip is equally between the plus-side cooling plate 901 and the V-phase cooling fin 970V (in 32 not shown). The DC side electrode of the V-phase switching device 952 of the upper branch is formed on its substrate-side main surface to communicate with the plus-side cooling fin 901 to be connected. The AC side electrode of the V-phase switching device 952 of the upper branch is formed on its surface side major surface to communicate with the V-phase cooling fin 970V to be connected.

Furthermore, the W-phase switching device 953 of the upper branch consisting of a MOS transistor chip between the position cooling plate 901 and the W-phase cooling fin 970W (in 32 not shown). The DC-side electrode of the W-phase switching device 953 of the upper branch is formed on the substrate side main surface to communicate with the position of the cooling fin 901 to be connected. The welchselstromseitige electrode of the W-phase switching device 953 of the upper branch is formed on the surface side main surface to communicate with the W-phase cooling fin 970W to be connected.

The U-phase switching device 954 of the lower branch consisting of a MOS transistor chip, as in 32 is shown between the minus-side cooling fin 902 and the U-phase cooling fin 970U interposed. The DC side electrode of the U-phase switching device 954 of the lower branch is formed on the substrate side main surface to communicate with the minus side cooling fin 902 to be connected. The AC-side electrode of the U-phase switching device 954 of the lower branch is formed on its surface side major surface to communicate with the U-phase cooling fin 970U to be connected.

The V-phase switching component 955 of the lower branch, consisting of a MOS transistor chip is equally between the minus-side cooling fin 902 and the V-phase cooling fins 970V (not in 32 shown) interposed. The AC side electrode of the V-phase switching device 955 of the lower branch is formed on the substrate side main surface to communicate with the minus side cooling fin 902 to be connected. The AC side electrode of the V-phase switching device 955 of the lower branch is formed on the surface-side major surface to communicate with the V-phase cooling fin 970V to be connected.

Furthermore, the W-phase switching device 956 of the lower branch, consisting of a MOS transistor chip between the minus-side cooling fin 902 and the W-phase cooling fin 970W (not in 32 shown) interposed. The DC-side electrode of the W-phase switching device 956 of the lower branch is formed on its substrate-side main surface, with the minus-side cooling fin 902 to be connected. The AC-side electrode of the W-phase switching device 956 The lower branch is formed on its surface-side surface to intermesh with the W-phase cooling fin 970W to be connected.

Each of the components 951 to 956 , such as B. the MOS transistor chips 951 to 956 are semiconductor chips, where each N-channel MOS transistors are formed. CSP (chip size package) semiconductor chips (Modules), semiconductor chips (modules), on the further surfaces of each electrodes are mounted, or similar semiconductor chips (Module9) can as components 951 to 956 be applied.

The minus-side cooling lamella 902 is in close contact with that on the outer end portion 914a of the housing 914 trained cooling fins 1011 and arranged radially at fixed intervals. The cooling fins 1011 stand in the outer end portion 914a of the housing 914 above. The cooling fins 1011 correspond to the second embodiment.

Each of the three phases of cooling fins 970U - 970W , the minus-side cooling fin 902 , and the plus-side cooling fin 901 are integrally formed by resin, so that the motor housing side end surface of the minus-side cooling fin 902 and the cover-side end surface (an end surface) of the plus-side cooling fin 901 are open or unprotected. The switching components including the MOS transistor chips 951 to 956 and the connecting portions among the switching members are in a filling areas formed by the resin 980 buried.

The U-phase cooling lamella 970U , the V-phase cooling fins 970V and the W-phase cooling fin 970W are in the radial direction of the filling area 980 over to the outside and are in the inverter 905 introduced air in contact. The U-phase cooling lamella 970U , the V-phase cooling fins 970V and the W-phase cooling fin 970W can be inward in the radial direction.

At least one location on at least one of the surfaces of the fill area 910 , a long groove can be formed to creep on the surfaces of the filling area 980 to increase. Optionally, at least one through hole through the minus-side cooling fin 902 and the plus-side cooling fin 901 be encountered. At least a section of the three phases lamellae 970U - 970W which is opposite to at least one through hole may be from the filling area 980 be uncovered what the cooling capabilities of the plus-side and minus-side cooling fins 901 and 902 can increase.

At least one of the plus-side and minus-side cooling fins 901 and 902 may at its designated position through a resin layer with at least one of the three phases of alternate cooling fins 970U - 970W to be in close contact. This arrangement results in an increase in the cooling capability of the at least one plus-side and minus-side cooling fins 901 and 902 when increasing the capacity of at least one of the three phases alternating lamellae 970U - 970W ,

In the fourth embodiment, the plus side cooling fin forms 901 as described above, the power supply line of the inverter 905 , Ie. the plus-side cooling lamella serves as the plus-side electrode of the inverter on both sides 905 and as a cooling member for cooling the switching components of the inverter 905 , Likewise, the minus-sided cooling lamella forms 902 the earthing cable of the inverter 905 , Ie. the minus-side cooling fin 902 on both sides serves as the minus-side electrode of the inverter 905 and as a cooling member for cooling the switching components of the inverter 905 ,

Some of the U-phase busbars are through the U-phase cooling fins 970U formed, and some of the V-phase busbars, as well as some of the W-phase busbars are each through the V-phase cooling fins 970V and the W-phase cooling fin 970W configured. Ie. each of the three phases of cooling fins 970U - 970W serves as the electrode of the inverter 905 and as a cooling member for cooling the switching components of the inverter 905 , The cooling fins 901 . 902 , and 903 ( 970U - 970W ) are arranged separately in the axial direction, and extend in radial and circumferential directions, respectively.

The cover 922 has a substantially cylindrical shape, and an opened end portion. The cover 922 is at its inner periphery of the opened end portion with the outer end wall 914a of the housing 914 connected to the inverter 905 cover.

Next, the mounting arrangement of the switching devices (MOS transistor chips) 951 to 956 relating to 34 described in detail.

reference numeral 1021 denotes a plurality of cooling fins formed radially from the cover-side end surface of the positive-side cooling fin 901 that the cooling fins 711 according to the first embodiment corresponds to survive.

The switching component 951 of the upper branch is at its lower (bottom) DC side electrode on the motor housing side surface of the plus side cooling fin 901 firmly mounted. The U-phase cooling lamella 970U is with a convex section 1020 provided, which in the direction of the AC-side electrode of the switching device 951 of the upper branch, so that the convex portion 1020 fixed to the DC-side electrode of the switching device 951 the upper branch is connected.

The control electrode (gate electrode) G1 and the communication terminal GV1, which are on sides of the AC-side electrode of the switching device 951 are arranged are glued or bonded to a flexible wire member 1205 and to be connected by solder.

The switching component 954 of the lower branch is at its lower AC side electrode on the cover side surface of the minus-side cooling fin 902 firmly mounted. The minus-side cooling lamella 902 is with a convex section 1010 provided, which invektrum the DC-side electrode of the switching device 954 of the lower branch, so that the convex portion 1010 fixed to the AC-side electrode of the switching device 954 the lower branch is connected.

The scattering electrode (gate electrode) G4 and the communication terminal TV4 which are on the DC side electrode side of the switching device 954 are glued or bonded to a flexible strip wire link 1204 to be connected by solder.

Further switching components 952 and 953 of the upper arm have the same fastening arrangement as the switching component 951 of the upper branch, and other switching components 955 and 956 of the lower branch have the same attachment structure as the switching member 954 of the lower branch.

Instead of the flexible tire wire members, bonding wires can be used. The convex sections 1010 and 1020 can with respect to the cooling fins 902 and 903 be trained individually. The individually formed convex sections (limbs) 1020 and 1010 can each be on the DC side electrode of the switching device 951 of the upper branch, and the AC-side electrode of the switching component 954 of the lower branch. After that, the convex sections can 1020 and 1010 each on the U-phase cooling lamella 970U and the minus-side cooling fin 902 be firmly mounted.

Instead of the convex sections 1010 and 1020 , the plus-side and minus-side cooling fins can 901 and 902 be formed with swept or cut grooves through which low-voltage rails (wires) can be removed.

In the 14th embodiment, the air flows when the cover 922 surrounding air through the inlet slots (in 32 not shown) in the cover 922 is sucked in the axial direction and / or radial direction.

As the air flows in the axial and / or radial directions, the air strikes each of the cooling fins 901 . 902 and 903 ( 79U - 79W ) so that the air selectively cools it.

The air flows, after cooling the cooling fins, in the housing 914 , and is from the vents 914b pushed out.

In the fourth embodiment, as described above, it is possible to cool the wrapper 905 to improve.

In addition, the AC sensors 903 and the switching components of the Umrieglers 905 including the switching components 951 - 956 , due to the plus and minus busbars 901 and 902 , closely integrated with each other by resin to form the bus bar assembly.

The busbar arrangement allows the inserted busbars 901 and 902 Therefore, acting as a heat sink, and allows the inverter Schaltbauteile including therefore under the 951 - 956 , the control unit 957 , and the busbars 902 completely in her feeling area 980 buried (covered), while maintaining their electrical pattern.

That is, it is possible the inverter 905 to downsize, although the electrical insulation, crash resistance and vibration resistance of the inverter 905 remain.

Moreover, each switching element of the upper branch is at its lower DC side electrode on the plus side radiator shaft 901 firmly mounted, and each convex section 1020 the cooling fin of each phase is tied individually to each DC side electrode of each switching element of the upper branch. Likewise, each switching element of the lower branch is fixed to its lower AC-side electrode on the minus-side cooling fin 902 mounted, and the convex portion of the minus-side busbar 902 is fixedly connected to the AC side electrode of each switching element of the lower branch.

This allows the switching components to be mounted on at least one of the plus and minus bus bars and the AC bus bars without the use of insulating layers, which allows the cooling capability of the converter 905 continue to improve.

Incidentally, in a magnet synchronous motor such as the motor generator 900 , the brushes 918 and the regulator 920 be omitted, so that the minus-side cooling fin 902 and the plus-side cooling fin 901 each formed with substantially annular shapes.

In a modification of the 14th embodiment, the position of the positive-side cooling fin 901 and the minus-side cooling fin 902 be replaced by each other.

In all embodiments and modifications, each motor generator is taught to the vehicle, however, the present invention is not limited to this arrangement. Each motor generator can be used here or in another arrangement.

In all embodiments and modifications, the housing of the motor generator consists of the first and second housing components, however, the housing may consist of a single housing component, or three or more housing components.

Claims (30)

Motor generator ( 1 . 1A . 1B . 1C . 1D . 1E . 1F . 1G . 1H . 1I . 1y . 1K . 1L . 1M . 900 ), comprising: a motor generator unit (MGU) including a housing ( 2 . 3 . 4 ); one on the housing ( 2 . 3 . 4 ) fixed stator ( 5 . 21 . 22 . 913 . 931 . 932 ); one to the housing ( 2 . 3 . 4 ) rotatably mounted rotary member ( 6 . 32a . 32b . 912 . 941 ); a rotary shaft ( 31 . 917 ); first and second radial fans ( 33a . 33b . 923a . 923b ) which are fixed to the rotary shaft; and a brush ( 62 . 918 ) for contact formation with the rotary member ( 6 . 32a . 32b . 912 . 941 ) for supplying a field current to the rotary member ( 6 . 32a . 32b . 912 . 941 ); a control unit ( 7 . 905 ) including a substantially cylindrical housing ( 70 . 70A . 70C . 70E . 70F . 70G . 70H . 70I . 70J . 70K ) attached to the housing ( 2 . 3 . 4 ) is integrally fixed; a plurality of in the housing ( 70 . 70A . 70C . 70E . 70F . 70G . 70H . 70I . 70J . 70K ) contained switching components ( 73 ), and a control circuit ( 79 ), the electrical connection of the plurality of switching components ( 73 ) by connecting links with the control circuit ( 79 ) and the stator ( 5 . 21 . 22 . 913 . 931 . 932 ) configured to supply electrical power thereto, wherein the stator ( 5 . 21 . 22 . 913 . 931 . 932 ) generates the magnetic field based on the supplied electric power, the rotary member ( 6 . 32a . 32b . 912 . 941 ) rotates based on the magnetic field; and a cover ( 87 ), which the housing ( 70 . 70A . 70C . 70E . 70F . 70G . 70H . 70I . 70J . 70K ) of the control unit ( 7 . 905 ), whereby the cover ( 87 ) allows air outside the cover ( 87 ) based on a rotation of the first and second radial fans ( 33a . 33b . 923a . 923b ), characterized in that the housing ( 70 . 70A . 70C . 70E . 70F . 70G . 70H . 70I . 70J . 70K ) comprises: a base plate member made of heat-absorbing material ( 71 ) having one and other opposite end surfaces, wherein the base plate member ( 71 ) radially in the housing ( 70 . 70A . 70C . 70E . 70F . 70G . 70H . 70I . 70J . 70K ) is arranged and has a substantially annular shape, wherein the switching components ( 73 ) on the one end surface of the base plate member ( 71 ) are mounted; a first peripheral wall ( 72a . 72a1 ) having a substantially tubular shape extending from an outer periphery of the one end surface of the base plate member (FIG. 71 ) in the axial direction of the housing ( 70 . 70A . 70C . 70E . 70F . 70G . 70H . 70I . 70J . 70K ), wherein between the base plate member ( 71 ) and the first peripheral wall ( 72a . 72a1 ) a mounting space is provided, a second peripheral wall ( 72b . 72b1 ) having a substantially tubular shape extending from an inner periphery of the one end surface of the base plate member ( 71 ) in the axial direction of the housing ( 70 . 70A . 70C . 70E . 70F . 70G . 70H . 70I . 70J . 70K ) extends; the second peripheral wall ( 72b . 72b1 ) has a groove (GR), which on an inner surface of the second peripheral wall ( 72b . 72b1 ) is formed, wherein a brush holder ( 60 ) is fitted in the groove (GR); a filling area made of electrical insulating material ( 74 . 980 ), which is filled in the mounting space; and a cooling member made of heat-absorbing material ( 711 ), which at least on the other end surface of the base plate member ( 71 ), wherein the other end surface and the cooling member ( 711 ) are formed towards an axial cooling passage, wherein the base plate member ( 71 ) and the cooling member ( 711 ) serve as a heat sink for cooling the switching elements; the motor generator ( 1 . 1A . 1B . 1C . 1D . 1E . 1F . 1G . 1H . 1I . 1y . 1K . 1L . 1M . 900 ) further comprising: a first cooling passage (PA) disposed radially between the other end surface of the base plate member (16); 71 ) and the cover ( 87 ), wherein the first cooling passage (PA) guides the sucked air as an air flow, while the air flow on the other surface of the base plate member (FIG. 71 ) and the cooling member ( 711 ) meets; and a second cooling passage (SPALT2, SPALT3) located between the second peripheral wall ( 72b . 72b1 ) and the rotary shaft ( 31 . 917 ), wherein the second cooling passage (SPALT2, SPALT3) causes the flow of air in the axial direction of the rotating shaft (13) 31 . 917 ) flows through it to the brush ( 62 . 918 ) and the flow of air into the housing ( 2 . 3 . 4 ). Motor generator ( 1 . 1A . 1B . 1C . 1D . 1E . 1F . 1G . 1H . 1I . 1y . 1K . 1L . 1M . 900 ) according to claim 1, characterized in that the housing ( 70 . 70A . 70C . 70E . 70F . 70G . 70H . 70I . 70J . 70K ) has an open end, and the housing ( 70 . 70A . 70C . 70E . 70F . 70G . 70H . 70I . 70J . 70K ) at the one end open to an end portion of the housing ( 2 . 3 . 4 ) is fixed in relation to the rotary member ( 6 . 32a . 32b . 912 . 941 ) to be arranged coaxially. Motor generator ( 1 . 1A . 1B . 1C . 1D . 1E . 1F . 1G . 1H . 1I . 1y . 1K . 1L . 1M . 900 ) according to claim 2, characterized in that the mounting space in the frame of or under the base plate member ( 71 ), the first peripheral wall ( 72a . 72a1 ) and the second peripheral wall ( 72b . 72b1 ) is provided. Motor generator ( 1 . 1A . 1B . 1C . 1D . 1E . 1F . 1G . 1H . 1I . 1y . 1K . 1L . 1M . 900 ) according to claim 3, characterized in that the switching components ( 73 ) in the filling area ( 74 . 980 ) and that the links are at least in one of: the first peripheral wall ( 72a . 72a1 ), the second peripheral wall ( 72b . 72b1 ) and the filling area ( 74 . 980 ) are stored. Motor generator ( 1 . 1A . 1B . 1C . 1D . 1E . 1F . 1G . 1H . 1I . 1y . 1K . 1L . 1M . 900 ) according to claim 3, characterized in that the heat-absorbing material is metal, the connecting links a positive busbar ( 75b ) containing a positive line of the control circuit ( 79 ), a negative bus bar ( 75a ) forms a negative line whose, and others with the switching components ( 73 ) and the electrical insulating material is resin. Motor generator ( 1 . 1A . 1B . 1C . 1D . 1E . 1F . 1G . 1H . 1I . 1y . 1K . 1L . 1M . 900 ) according to claim 5, characterized in that the positive busbar ( 75b ) and negative busbar ( 75a ) at least one of: the base plate member ( 71 ) and the cooling member ( 711 ) connected is. Motor generator ( 1 . 1A . 1B . 1C . 1D . 1E . 1F . 1G . 1H . 1I . 1y . 1K . 1L . 1M . 900 ) according to claim 5, characterized in that the positive busbar ( 75b ) and negative busbar ( 75a ) in one of the first or second peripheral walls ( 72a . 72a1 ; 72b . 72b1 ) is integrally formed. Motor generator ( 1 . 1A . 1B . 1C . 1D . 1E . 1F . 1G . 1H . 1I . 1y . 1K . 1L . 1M . 900 ) according to claim 7, characterized in that the positive busbar ( 75b ) and negative busbar ( 75a ) in the first and second peripheral walls ( 72a . 72a1 ; 72b . 72b1 ) is integrally formed. Motor generator ( 1 . 1A . 1B . 1C . 1D . 1E . 1F . 1G . 1H . 1I . 1y . 1K . 1L . 1M . 900 ) according to claims 7 or 8, characterized in that the negative bus bar ( 75a ) in the first peripheral wall ( 72a . 72a1 ) is integrally formed, and with the one end portion of the housing ( 2 . 3 . 4 ), as well as the negative busbar ( 75a ) with the housing ( 2 . 3 . 4 ) is electrically connected. Motor generator ( 1 . 1A . 1B . 1C . 1D . 1E . 1F . 1G . 1H . 1I . 1y . 1K . 1L . 1M . 900 ) according to claims 7 or 8, characterized in that the plurality of switching components ( 73 ) a pair of in-phase switching components ( 73 ), the stator ( 5 . 21 . 22 . 913 . 931 . 932 ) includes a stator coil having a guide wire which includes other bus bars: a first branch bus bar extending along the positive lead, a second branch bus bar extending along the negative lead, and a third branch bus bar integrally formed from the guide wire of the stator coil 1, the first, second and third branch bus bars extend on the one end surface of the base plate member (FIG. 71 ) and the paired in-phase switching components ( 73 ) on the one end surface of the base plate member ( 71 ) are arranged, wherein both sides of the first, second and third branch busbars in the circumferential direction of the housing ( 70 . 70A . 70C . 70E . 70F . 70G . 70H . 70I . 70J . 70K ) are arranged respectively. Motor generator ( 1 . 1A . 1B . 1C . 1D . 1E . 1F . 1G . 1H . 1I . 1y . 1K . 1L . 1M . 900 ) according to at least one of claims 3 to 10, characterized in that: the cover ( 87 ) at least the other (outwardly) open end surface of the base plate member ( 71 ) and the cooling member ( 711 ) and is formed with at least one air inlet opening, and the at least one inlet opening allows the outside of the cover ( 87 ) located in the interior of the cover ( 87 ) is sucked, the cooling member ( 711 ) a plurality of on the other end surface of the base plate ( 71 ) mounted cooling fins ( 711 . 711a ) and towards the cover ( 87 ) survives. Motor generator ( 1 . 1A . 1B . 1C . 1D . 1E . 1F . 1G . 1H . 1I . 1y . 1K . 1L . 1M . 900 ) according to claim 11, characterized in that the cooling fins ( 711 ) on the other end surface of the base plate member ( 71 ) are arranged radially. Motor generator ( 1 . 1A . 1B . 1C . 1D . 1E . 1F . 1G . 1H . 1I . 1y . 1K . 1L . 1M . 900 ) according to claim 11, characterized in that the cooling fins ( 711a ) on the other end surface of the base plate member ( 71 ) are arranged spirally. Motor generator ( 1B ) according to claim 11, characterized in that the cover ( 87 ) a base wall ( 87a ) with one of the other end surfaces of the base plate member ( 71 ) has opposite surface; and a plurality of guide sections ( 87b ), from the surface of the Base wall ( 87a ), so that the guide sections ( 87b ) in each case between the adjacent cooling fins ( 711 ) are located. Motor generator ( 1 . 1A . 1B . 1C . 1D . 1E . 1F . 1G . 1H . 1I . 1y . 1K . 1L . 1M . 900 ) according to at least one of claims 1 to 14, characterized in that the plurality of switching components ( 73 ) on the base plate member ( 71 ) at intervals in the circumferential direction of the housing ( 70 . 70A . 70C . 70E . 70F . 70G . 70H . 70I . 70J . 70K ) are arranged. Motor generator ( 1 . 1A . 1B . 1C . 1D . 1E . 1F . 1G . 1H . 1I . 1y . 1K . 1L . 1M . 900 ) according to at least one of claims 3 to 10, characterized in that the first peripheral wall ( 72a . 72a1 ) is arranged such that this of the brush ( 62 . 918 ) in a radial direction of the rotary shaft ( 31 . 917 ) is opposite. Motor generator ( 1 . 1A . 1B . 1C . 1D . 1E . 1F . 1G . 1H . 1I . 1y . 1K . 1L . 1M . 900 ) according to at least one of claims 3 to 10, characterized in that the housing ( 70 . 70A . 70C . 70E . 70F . 70G . 70H . 70I . 70J . 70K ) further comprises a cover plate member which at least a part of the one open end portion of the housing ( 70 . 70A . 70C . 70E . 70F . 70G . 70H . 70I . 70J . 70K ) covers. Motor generator ( 1 . 1A . 1B . 1C . 1D . 1E . 1F . 1G . 1H . 1I . 1y . 1K . 1L . 1M . 900 ) according to claim 17, characterized in that the cover plate member is made of metal, is arranged at a gap with respect to the one end portion in the axial direction, and is connected to one of the positive and negative bus bars. Motor generator ( 1 . 1A . 1B . 1C . 1D . 1E . 1F . 1G . 1H . 1I . 1y . 1K . 1L . 1M . 900 ) according to claim 18, characterized in that the cover plate member includes a gap-facing surface, and at least one cooling fin is formed on the surface and protrudes toward the space. Motor generator ( 1 . 1A . 1B . 1C . 1D . 1E . 1F . 1G . 1H . 1I . 1y . 1K . 1L . 1M . 900 ) according to at least one of claims 1 to 10, characterized in that the cooling member comprises a metal cover member attached to the other surface of the base plate member ( 71 ) is mounted, and that the metal cover member is provided with at least one air passage. Motor generator ( 1G ) according to claim 20, characterized in that the metal cover member comprises a plurality of metal cover plates ( 821 . 831 . 841 ), the plurality of metal plates ( 821 . 831 . 841 ) are arranged at intervals in the axial direction, and the at least one air passage consists of a plurality of air passages, the plurality of air passages between the other end surface of the base plate member ( 71 ) and one of the metal cover plates ( 821 . 831 . 841 ) are formed, ie adjacent to the other end surface thereof, and located between the adjacent Metallabdeckplatten. Motor generator ( 1H ) according to claim 20, characterized in that the metal cover member comprises a plurality of metal cover plates ( 822 . 832 . 842 ) including first and second metal cover plates adjacent to each other, the first metal cover plate ( 822 ) opposite the other end surface of the base plate member ( 71 ) and with a plurality of convex sections ( 822a ) and concave sections ( 822b ) formed alternately, and the second metal cover plate (FIG. 832 ) with the convex portions ( 822a ) of the first metal cover plate ( 822 ) Forms contact, whereby the air passages between the concave sections ( 822b ) of the first metal cover plate ( 822 ) and the second metal cover plate ( 832 ) be created. Motor generator ( 1 . 1A . 1B . 1C . 1D . 1E . 1F . 1G . 1H . 1I . 1y . 1K . 1L . 1M . 900 ) according to claim 20, characterized in that at least the one air passage consists of a plurality of air passages, and the plurality of air passages pierce the Metallabdeckglied to be arranged in Radialrtihtung. Motor generator ( 1 . 1A . 1B . 1C . 1D . 1E . 1F . 1G . 1H . 1I . 1y . 1K . 1L . 1M . 900 ) according to claim 11, characterized in that the cover ( 87 ) a base wall with one of the other end surface of the base plate member ( 71 ), and a corner portion connected between the base wall and the peripheral wall and the at least one air passage opening formed on at least one of: the base wall, the peripheral wall and the corner portion , Motor generator ( 1 . 1A . 1B . 1C . 1D . 1E . 1F . 1G . 1H . 1I . 1y . 1K . 1L . 1M . 900 ) according to claim 24, characterized in that at least one Luftdwchlaßöffnung ( 712 ) opposite a gap between the cooling fins ( 711 . 711a ) is located. Motor generator ( 1M ) according to claims 6 or 7, characterized in that the positive busbar ( 75b ) with at least one of: the base plate member ( 71 ) and the cooling member, further comprising: an output terminal connecting member ( 890 ) extending from an outer periphery of the base plate member ( 71 ) extends in the axial direction; a bolt outlet connection ( 893 ), which is connected through the output terminal connection member ( 890 ) is pierced in the radial direction, and a nut output terminal, in engagement with a pierced portion of the bolt outlet port ( 893 ), so that the bolt exit port ( 893 ) with the output terminal connection member ( 890 ) is connected or connected to it. Motor generator ( 1M ) according to claim 26, characterized in that the output terminal connection member ( 890 ) a first extending section ( 890a ), which extends from the outer periphery of the base plate member ( 71 ) extends outward in the radial direction; and a second extending section ( 890b ) extending from a projecting end of the first extending section ( 890a ) extends in the axial direction, the second extending portion ( 890b ) with a mounting hole ( 890c ), through which the bolt outlet connection ( 893 ) is pierced to be incorporated therein. Motor generator ( 1M ) according to claim 27, further comprising: a terminal support member ( 891 ) extending from the outer periphery of the base plate member ( 71 ), the terminal support member ( 891 ) comprises a locking stop member ( 892 ) with an elastically deformable groove, and, when the Nutausgangsanschluß with the bolt outlet port ( 893 ) is engaged at the second extending portion (FIG. 890b ), the mother output terminal ( 894 ) is inserted into the locking stop groove and internally an elastic force from the Arretierstopglied ( 892 ). Motor generator ( 900 ) according to claim 1, characterized in that: the control unit ( 905 ) a substantially cylindrical busbar arrangement ( 901 . 902 . 903 ) having one of a circular arc shape and a ring shape of its radial cross section, and the switching components ( 73 ) contains; the busbar arrangement ( 901 . 902 . 903 a pair of first and second plate-like positive and negative bus bars ( 901 . 902 ) each having one of a circular arc shape and a ring shape in its radial cross section and arranged radially, wherein the first and second plate-like positive and negative bus bars ( 901 . 902 ) at a gap therebetween in an axial direction of the bus bar assembly (FIG. 901 . 902 . 903 ) are arranged and respective DC lines of the control circuit ( 79 ) form; and wherein the first plate-like positive busbar ( 901 ) has an open end surface which is opposite to the one end portion of the housing ( 2 . 3 . 4 ), and the second plate-like negative bus bar ( 902 ) an open end surface opposite the cover ( 87 ) having. Motor generator ( 900 ) according to claim 29, further comprising: a first cooling fin, which on the one end surface of the first plate-like positive busbar ( 901 ) is formed and thereof in the direction of the one end portion of the housing ( 2 . 3 . 4 ) survives; and a second cooling fin mounted on the other end surface of the second plate-like negative bus bar (10). 902 ) is formed and thereof in the direction of the cover ( 87 ) survives.

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