JP4958925B2 - Rotating electrical machine apparatus and manufacturing method thereof - Google Patents

Description

  The present invention relates to a rotating electrical machine apparatus that is mounted on, for example, a hybrid vehicle and includes a plurality of rotating electrical machines such as a motor and a generator, and a manufacturing method thereof.

  2. Description of the Related Art Conventionally, a motor is downsized by securing an insulation distance without separating motor terminals.

  For example, in Patent Document 1, in order to secure an insulation distance between each lead wire connecting portion provided at the tip of the terminal, the lead wire connecting portion at the terminal tip is exposed stepwise from the end case. The idea is disclosed.

Japanese Patent Laid-Open No. 5-15097

  However, for example, when the technical idea disclosed in Patent Document 1 is applied to a hybrid vehicle including two rotating electrical machines including a motor that drives a vehicle and a generator that supplies electric power to the motor. The wiring between the motor and the generator becomes complicated, and it becomes difficult to secure a sufficient insulation distance.

  That is, in Patent Document 1, when connecting a plurality of lead wire connecting portions provided in a single motor, the lead wire connecting portions are arranged in a step shape so that an insulation distance between the lead wire connecting portions is obtained. For example, when a motor and a generator are arranged adjacent to each other in order to reduce the wiring connection distance in a hybrid vehicle or the like, the motor wiring and the generator wiring are Crossing each other and making it complicated, between each lead wire connecting portion of the motor and between each lead wire connecting portion of the generator, and each lead wire connecting portion of the motor and each lead wire of the generator It is difficult to make an electrical connection with the connecting portion while ensuring a sufficient insulation distance.

  Further, in the hybrid vehicle, when the motor and the generator are arranged adjacent to each other, there is a problem that the assembling work becomes complicated in the manufacturing process.

  The present invention has been made in view of the various points described above, and a general object of the present invention is to provide first and second rotating electrical machines and first and second controls that are disposed adjacent to each other. An object of the present invention is to provide a rotating electrical machine apparatus including a single terminal block that can be electrically connected to a unit while ensuring a sufficient insulation distance.

  Also, a main object of the present invention is to provide a method of manufacturing a rotating electrical machine apparatus that can perform assembly work simply by setting the assembly direction to the same direction and improve assembly performance.

  In order to achieve the above object, the present invention provides a first rotating electrical machine and a second rotating electrical machine that are housed in a casing and have a rotating shaft, and the first rotating electrical machine and the second rotating electrical machine, respectively. The first control unit and the second control unit for driving control, and the first and second control units and the phase wires of the first and second rotating electrical machines are electrically connected to each other. A rotating electrical machine apparatus provided with a terminal block provided in the casing, wherein the terminal block is provided on one end side along an axial direction and electrically connected to the first and second control units, respectively. A control unit side connecting portion, and a rotating electrical machine side connecting portion provided on the other end side along the axial direction and electrically connected to the first and second rotating electrical machines, respectively, and the control unit Side connection is on one side A first control unit side connecting portion in which connecting portions corresponding to each phase line of the first rotating electrical machine are formed in a stepped manner so as to gradually become longer toward the other side, and from the one side to the other side A second control unit side connection portion in which connection portions corresponding to each phase line of the second rotating electrical machine are formed in a step shape so as to gradually become longer toward the side, and the first control The unit-side connecting portion is disposed outside in the radial direction of the casing, and the second control unit-side connecting portion is disposed adjacently so as to be inside in the radial direction of the casing. The first control unit side connecting portion and the second control unit side connecting portion are arranged at positions relatively shifted in the rotation axis direction.

  According to the present invention, the first and second control unit side connection portions in the terminal block are formed in a stepped shape, and the first control unit side connection portion in the radial direction is the radially outer side of the casing, the second The control unit side connection portion is provided adjacent to the inside of the casing in the radial direction, and the first and second control unit side connection portions are disposed at positions relatively shifted in the rotation axis direction. Thus, it is possible to reduce the size of the terminal block as a single unit while ensuring the insulating property (sufficient insulation distance) at each connection point.

  In the present invention, the first rotating electrical machine and the second rotating electrical machine are disposed adjacent to each other in the rotational axis direction, and the first rotating electrical machine and the second rotating electrical machine Each phase wire is drawn out in a direction perpendicular to the rotation axis direction, and the rotating electric machine side connecting portion is a first rotating electric machine that is electrically connected to each phase line drawn from the first rotating electric machine. A side connecting portion and a second rotating electrical machine side connecting portion that is electrically connected to each phase line drawn from the second rotating electrical machine, and the first rotating electrical machine side connecting portion includes the The second rotating electrical machine side connecting portion is disposed adjacent to the inner side in the radial direction of the casing, and is disposed on the outer side in the radial direction of the casing. The rotating electrical machine side connecting portion is relatively displaced in the direction of the rotation axis. Characterized in that it is arranged.

  According to the present invention, the first and second rotating electrical machine side connecting portions of the terminal block are disposed at positions relatively shifted in the rotation axis direction, whereby each phase drawn from the first rotating electrical machine. The wire and each phase wire drawn from the second rotating electrical machine can be connected to the first and second rotating electrical machine side connecting portions in a consolidated manner, and the terminal block can be reduced in size. .

  Further, according to the present invention, the phase lines of the first and second rotating electrical machines are drawn toward the terminal block from the end faces on the opposite sides of the first and second rotating electrical machines, respectively. The dimensions of the rotating electrical machine side connecting portion to which the phase wires are fastened can be shortened.

  Further, according to the present invention, the first and second control unit side connection portions are electrically connected to the first and second control units by first and second bus bar groups each having a plurality of plate shapes. The first and second bus bar groups are arranged in a non-contact state with each other via a rising portion provided in an intermediate portion, and the second control unit side connection portion is The first control by the first bus bar group and the second bus bar group is set to be relatively long by being at a position shifted to one end side in the rotation axis direction from the first control unit side connection portion. The first bus bar group is connected to the second bus bar group, and the first bus bar group is connected by a fastening member such that the extending directions at the fastening site of the unit side connection part and the second control unit side connection part are orthogonal to each other. The fastening member It may be configured to be connected to Guyo.

  According to the present invention, the bus bars constituting the first and second bus bar groups are arranged in a predetermined space while ensuring a sufficient insulation distance from each other. As a result, the overall size of the apparatus can be reduced.

  Furthermore, the present invention provides a first rotating electric machine and a second rotating electric machine that are housed in a casing and have a rotating shaft, and a first that controls driving of the first rotating electric machine and the second rotating electric machine, respectively. A control unit, a second control unit, and the casing for electrically connecting the first and second control units and the phase wires of the first and second rotating electrical machines to each other; A rotating electrical machine apparatus provided with a terminal block, wherein the terminal block is provided on one end side along the axial direction and electrically connected to the first and second control units, respectively. And a rotating electrical machine side connecting portion provided on the other end side along the axial direction and electrically connected to each of the first and second rotating electrical machines, and the control unit side connecting portion includes: Each of the first rotating electrical machine A first control unit side connection portion corresponding to a line, and a second control unit side connection portion corresponding to each phase line of the second rotating electrical machine, wherein the first control unit side connection portion is The second control unit side connection portion is disposed adjacently so as to be inside in the radial direction of the casing, and the first control unit is disposed outside in the radial direction of the casing. The side connection part and the second control unit side connection part are arranged at positions relatively shifted in the rotation axis direction.

  According to the present invention, in the radial direction of the casing, the first control unit side connection portion is adjacent to the terminal block such that the second control unit side connection portion is on the radially inner side of the casing. In addition, the first and second control unit side connection portions are disposed at positions relatively shifted in the rotation axis direction, thereby ensuring insulation (sufficient insulation distance) at each connection point. However, it is possible to reduce the size by using a single terminal block.

  Still further, the present invention provides a first rotating electrical machine and a second rotating electrical machine housed in a casing constituted by first to third cases, the first rotating electrical machine and the second rotating electrical machine. A first control unit and a second control unit that respectively control the drive of the motor, and the first and second control units and the phase wires of the first and second rotating electrical machines are electrically connected to each other. The terminal block is connected to the first case, and after the terminal block is attached to the first case, one end of the second rotating electrical machine is accommodated in the first case. And connecting each phase wire of the second rotating electrical machine to the terminal block. Further, the second case is fixed adjacent to the first case, covers the other end of the second rotating electrical machine, and has a through hole through which the terminal block passes. Attach to the case. Furthermore, the first case is attached to the second case so that one end of the first rotating electrical machine is housed, and each phase wire of the first rotating electrical machine is connected to the terminal block. Subsequently, a third case is attached so as to be fixed adjacent to the second case and to cover the other end of the first rotating electric machine. In the present invention, since the assembling direction is set in the same direction in all such assembling steps, the assembling work can be easily performed, and the assembling property can be improved.

According to the present invention, the first and second rotating electrical machines and the first and second control units disposed adjacent to each other can be electrically connected while ensuring a sufficient insulation distance. A rotating electrical machine apparatus having one terminal block can be obtained.
Moreover, according to the present invention, the assembling direction can be set to the same direction and the assembling work can be easily performed to improve the assembling property.

1 is a schematic configuration diagram of a hybrid vehicle drive device in which a rotating electrical machine apparatus according to an embodiment of the present invention is incorporated. It is a schematic front view of the rotary electric machine apparatus which concerns on embodiment of this invention. (A) is the perspective view which looked at the terminal block from the front, (b) is the perspective view which looked at the said terminal block from the back. It is a perspective view which shows the state before attaching a terminal block with respect to the side part opening of a 1st case. It is a perspective view which shows the state after attaching a terminal block with respect to the said side part opening. It is a perspective view which shows the state which connected the control unit side connection part and PCU connection part of the terminal block with the three-phase wire for generators. It is a disassembled perspective view which shows the shape of the said three-phase wire for generators. It is a perspective view which shows the state which connected the control unit side connection part and PCU connection part of the terminal block with the three-phase wire for motors after the said three-phase wire for generators was connected. It is a disassembled perspective view which shows the shape of the said three-phase wire for motors. (A)-(d) is a perspective view which shows the manufacturing process of the rotary electric machine apparatus which concerns on embodiment of this invention. (A)-(d) is a perspective view which shows the manufacturing process of the rotary electric apparatus following FIG. (A) is a partial expansion perspective view which shows the state by which a terminal block is penetrated with respect to the side part opening of a 1st case, (b) shows the state by which the three-phase wire of the motor was connected to the terminal block. Partially omitted perspective view, (c) is a partially omitted perspective view showing a state in which the three-phase wire of the generator is connected to the terminal block, and (d) is a sectional view taken along line XII-XII in (c). It is. The terminal block which concerns on a modification is shown, (a) is the perspective view which looked at the said terminal block from the front, (b) is the perspective view which looked at the said terminal block from the back.

  Next, embodiments of the present invention will be described in detail with reference to the drawings as appropriate. FIG. 1 is a schematic configuration diagram of a hybrid vehicle drive device in which a rotating electrical machine apparatus according to an embodiment of the present invention is incorporated.

  As shown in FIG. 1, the hybrid vehicle drive device 10 includes an engine shaft 12, a generator shaft 14, and an idle shaft 16 that are arranged in parallel. The generator shaft 14 includes an inner peripheral shaft 14a made of a hollow body and a hollow outer peripheral shaft 14b attached to the outside of the inner peripheral shaft 14a so as to be relatively rotatable.

  The engine shaft 12 connected to the crankshaft 19 of the engine 18 is connected via a generator drive gear 20 to an inner peripheral shaft 14a of a generator shaft 14 provided with a generator (first rotating electrical machine) 22 on its axis. The

  The generator 22 includes a rotor 22a fixed to the inner peripheral shaft 14a of the generator shaft 14 and a stator 22b fixed to the casing 102 described later and disposed opposite to the rotor 22a. The rotational driving force of the engine shaft 12 is transmitted to the inner peripheral shaft 14a of the generator shaft 14 via the generator driving gear 20, and the rotational driving force of the engine shaft 12 can be converted into electric power by rotating the rotor 22a.

  Further, the outer peripheral shaft 14b of the generator shaft 14 provided with the motor (second rotating electrical machine) 24 on its axis is connected to the idle shaft 16 via the motor driving force transmission gear 26, and the engine shaft 12 and the idle shaft 16 are connected. Are connected via an engine driving force transmission gear 28. The idle shaft 16 and the differential device 30 are connected via a final gear 32, and the differential device 30 is connected to drive wheels 36 and 36 via a differential shaft 34.

  The motor 24 includes a rotor 24a fixed to the outer peripheral shaft 14b of the generator shaft 14 and a stator 24b fixed to the casing 102 described later and disposed opposite to the rotor 24a. When the motor 24 is rotated by the electric power supplied from the generator 22, the outer peripheral shaft 14 b of the generator shaft 14 rotates, and the rotational driving force of the motor 24 is transmitted to the idle shaft 16 via the motor driving force transmission gear 26. The

  In this case, the generator 22 and the motor 24 are coaxially disposed adjacent to each other by the generator shaft 14 including the inner peripheral shaft 14a and the outer peripheral shaft 14b, and the generator shaft 14 including the inner peripheral shaft 14a and the outer peripheral shaft 14b is It functions as a rotating shaft (see FIG. 2) of the rotating electrical machine apparatus 100 described later.

  The engine shaft 12 is provided with a clutch 38 for connecting or releasing the transmission of the rotational driving force between the engine shaft 12 and the idle shaft 16 via the engine driving force transmission gear 28.

  The clutch 38 is a so-called multi-plate clutch, and includes a plurality of disc-shaped clutch discs and clutch plates (not shown), and a clutch piston (not shown) that presses the clutch discs and clutch plates by the hydraulic pressure of oil filled in the working chamber. And have.

  An output gear 41a constituting an oil pump drive gear 40 fixed to the engine shaft 12 meshes with an input gear 41b of an oil pump shaft 42 arranged in parallel with the engine shaft 12, and drives the engine shaft 12 to the oil pump 44. Transmit power. The oil pump 44 generates an operating hydraulic pressure that urges the clutch 38, or pumps oil for lubricating and cooling each part.

FIG. 2 is a schematic front view of the rotating electrical machine apparatus according to the embodiment of the present invention.
The rotating electrical machine apparatus 100 incorporated in the hybrid vehicle drive apparatus 10 includes a casing 102 that accommodates therein a generator 22 and a motor 24 that are disposed adjacent to each other along the rotation axis direction.

  The casing 102 includes a first case 104a in which the motor 24 is accommodated, and a through hole 108 (see FIG. 10D) that is fixed adjacent to the first case 104a and through which a terminal block 106 to be described later passes. The second case 104b formed, the third case 104c fixed adjacent to the second case 104b and accommodating the generator 22, and the engine 18 adjacent to the first case 104a are provided. A fourth case 104d. In this case, the first to fourth cases 104a to 104d are configured to be integrally assembled through a plurality of bolts (not shown).

  FIG. 2 shows a state where a cover (not shown) that closes the opening 109 is removed so that the terminal block 106 accommodated in the casing 102 is visible from the outside of the casing 102.

  Further, the rotating electrical machine apparatus 100 is housed in a housing 110 provided on the upper side of the casing 102, and is housed in the casing 102 and a PCU (Power Control Unit) 112 that drives and controls the generator 22 and the motor 24. Terminals for electrically connecting the PCU 112, the generator 22 and the motor 24 to each other via a generator three-phase wire 114a (bus bars 150a to 150c described later) and a motor three-phase wire 114b (bus bars 152a to 152c described later). A stand 106 and a battery 116 (see FIG. 1) that stores the power generated by the generator 22 and supplies the stored power to the motor 24.

  The PCU 112 includes, for example, a boost converter that boosts the voltage of the battery 116 to the maximum voltage, and an inverter that converts a DC voltage into an AC voltage, and controls the driving of the generator 22 and the motor 24, respectively. And functions as a second control unit.

  The hybrid vehicle drive device 10 configured as described above drives the rotational driving force of the engine 18 and the first transmission path for transmitting the rotational driving force of the motor 24 to the driving wheels 36 and 36 to drive the vehicle. And a second transmission path that travels the vehicle by transmitting to the wheels 36, 36, and the vehicle travels by selectively selecting or using these two transmission paths.

  First, referring to FIG. 1, a first transmission path for transmitting the rotational driving force of the motor 24 to the drive wheels 36 and 36 to drive the vehicle will be described. In this case, the clutch 38 is in an open state, and power transmission between the engine shaft 12 and the idle shaft 16 is cut off.

  The rotational driving force of the engine 18 input from the engine shaft 12 to the inner peripheral shaft 14a of the generator shaft 14 through the generator drive gear 20 rotates the inner peripheral shaft 14a of the generator shaft 14 to be fixed to the inner peripheral shaft 14a. The generated generator 22 rotates integrally with the generator shaft 14 to generate power.

  The motor 24 connected on the outer peripheral shaft 14b provided rotatably relative to the inner peripheral shaft 14a of the generator shaft 14 uses the electric power generated by the generator 22 to drive the outer peripheral shaft 14b of the generator shaft 14. The rotational driving force is transmitted to the idle shaft 16 via the motor driving force transmission gear 26, and the transmitted rotational driving force is transmitted to the driving wheel 36 via the final gear 32, the differential device 30 and the differential shaft 34. , 36. As a result, a so-called series operation in which all the rotational driving force of the engine 18 is converted into electricity by the generator 22 is possible.

  On the other hand, a second transmission path for transmitting the rotational driving force of the engine 18 to the drive wheels 36 and 36 to drive the vehicle is provided on the engine shaft 12 by operating the clutch piston by the oil discharged from the oil pump 44. By connecting the clutch 38, the rotational driving force of the engine shaft 12 is transmitted to the idle shaft 16 via the engine driving force transmission gear 28, and further driven via the final gear 32, the differential device 30 and the differential shaft 34. It is transmitted to the wheels 36, 36.

  In this case, since the engine shaft 12 and the inner peripheral shaft 14a of the generator shaft 14 are always connected via the generator drive gear 20, the generator 22 generates power and the generated power (stored in the battery 116). By driving the motor 24 to rotate by power (including electric power), so-called parallel operation in which both the machine and electricity are combined is possible. Note that by performing zero torque control on the motor 24 and the generator 22, it is possible to minimize the drag loss and allow the vehicle to travel only with the rotational driving force of the engine 18.

  Next, the configuration of the terminal block 106 will be described. 3A is a perspective view of the terminal block viewed from the front, and FIG. 3B is a perspective view of the terminal block viewed from the back.

  As shown in FIG. 3A, the terminal block 106 is provided on one end side along the axial direction of the terminal block 106, and is connected to the PCU 112 via the generator three-phase wire 114a and the motor three-phase wire 114b. As shown in FIG. 3B, the control unit side connection portion 120 that is electrically connected is provided on the other end side along the axial direction, and is electrically connected to the generator 22 and the motor 24, respectively. A rotating electrical machine side connecting portion 122.

  Between the control unit side connection part 120 and the rotating electrical machine side connection part 122, a substantially elliptical flange part 126 for fixing the terminal block 106 to the casing 102 via a screw member 124 is provided.

  As shown in FIG. 3A, the control unit side connection portion 120 corresponds to the generator three-phase wire 114a so as to gradually become longer from one side along the axial direction of the terminal block 106 toward the other side. A1 to A3 terminal portions (connecting portions) 128a to 128c that perform the first control unit side connecting portion formed stepwise, and a motor that gradually increases from one side along the axial direction toward the other side. The three-phase wire 114b and the corresponding B1 to B3 terminal portions (connecting portions) 130a to 130c are configured by second control unit side connecting portions formed in a step shape.

  In addition, the 2nd control unit side connection part which has B1-B3 terminal part 130a-130c shifted | deviated to the one end side of the rotating shaft direction from the 1st control unit side connection part which has A1-A3 terminal part 128a-128c. It is set relatively long by being in a position.

  In this case, the 1st control unit side connection part which consists of A1-A3 terminal part 128a-128c is arrange | positioned on the outer side in the radial direction of the said casing 102, and 2nd control which consists of B1-B3 terminal part 130a-130c. The unit side connecting portions are arranged adjacent to each other so as to be inside in the radial direction of the casing 102. In addition, the first control unit side connection portion including the A1 to A3 terminal portions 128a to 128c and the second control unit side connection portion including the B1 to B3 terminal portions 130a to 130c are relatively in the rotation axis direction. It is arranged at a shifted position.

  That is, the A1 terminal portion 128a on the generator 22 side and the B1 terminal portion 130a on the motor 24 side are in a positional relationship along the rotational axis direction (A1⇔B1), and the A2 terminal portion 128b on the generator 22 side and the motor 24 side The B2 terminal portion 130b is in a positional relationship along the rotation axis direction (A2⇔B2), and the A3 terminal portion 128c on the generator 22 side and the B3 terminal portion 130c on the motor 24 side are in a positional relationship along the rotation axis direction. Yes (A3⇔B3), positions where the A1 to A3 terminal portions 128a to 128c on the generator 22 side and the B1 to B3 terminal portions 130a to 130c on the motor 24 side are relatively slid by a predetermined length along the rotation axis direction Set to relationship.

  In other words, when the flange portion 126 provided at the intermediate position of the terminal block 106 is used as a reference, the A1 to A3 terminal portions 128a to 128c on the generator 22 side are respectively arranged at positions close to the flange portion 126, and the motor 24 The B1 to B3 terminal portions 130a to 130c on the side are respectively disposed at positions that are the farthest from the flange portion 126.

  As described above, in the present embodiment, the A1 to A3 terminal portions 128a to 128c on the generator 22 side and the B1 to B3 terminal portions 130a to 130c on the motor 24 side are stacked in a plan view and stacked in the rotation axis direction. The terminal block 106 to which the generator three-phase wire 114a and the motor three-phase wire 114b are electrically connected is integrated as a single unit (shared, merged) by being arranged at a position shifted by a predetermined length. And the wiring length can be shortened.

  As a result, in this embodiment, by using a single terminal block 106 in which a plurality of terminals on the generator 22 side and a plurality of terminals on the motor 24 side are shared, the number of parts is reduced and the cost is reduced. In addition, the processability of the casing 102 can be improved. Moreover, in this embodiment, since the terminal block 106 itself can be reduced in size, the rotation electrical machinery apparatus 100 whole can be reduced in size and weight.

  Regarding the above points, the rotating electrical machine side connecting portion 122 is also configured in the same manner as the control unit side connecting portion 120 and exhibits the same operational effects. That is, as shown in FIG. 3B, the rotating electrical machine side connecting portion 122 has C1 to C3 terminal portions (connecting portions) 132a to 132c corresponding to the respective phase lines drawn from the generator 22 on substantially the same plane. The first rotating electrical machine side connecting portion arranged in parallel with each other and the D1 to D3 terminal portions (connecting portions) 134a to 134c corresponding to the respective phase lines drawn from the motor 24 are arranged in parallel on substantially the same plane. 2 rotating electrical machine side connection parts.

  In this case, the 1st rotation electrical side connection part which consists of C1-C3 terminal parts 132a-132c is arranged outside in the diameter direction of the casing 102, and the 2nd rotation which consists of D1-D3 terminal parts 134a-134c. The electric side connection portions are arranged adjacently in a stepped manner so as to be inside in the radial direction of the casing 102. In addition, the first rotating electrical side connecting portion including the C1 to C3 terminal portions 132a to 132c and the second rotating electrical side connecting portion including the D1 to D3 terminal portions 134a to 134c are relatively relative to each other in the rotation axis direction. It is arranged at a shifted position.

  That is, the C1 terminal portion 132a on the generator 22 side and the D1 terminal portion 134a on the motor 24 side are in a positional relationship along the rotation axis direction (C1⇔D1), and the C2 terminal portion 132b on the generator 22 side and the motor 24 side The D2 terminal portion 134b is in a positional relationship along the rotational axis direction (C2⇔D2), and the C3 terminal portion 132c on the generator 22 side and the D3 terminal portion 134c on the motor 24 side are in a positional relationship along the rotational axis direction. Yes (C3⇔D3), a position where the C1 to C3 terminal portions 132a to 132c on the generator 22 side and the D1 to D3 terminal portions 134a to 134c on the motor 24 side are relatively slid by a predetermined length along the rotation axis direction Set to relationship.

  In other words, when the flange portion 126 provided at the intermediate position of the terminal block 106 is used as a reference, the C1 to C3 terminal portions 132a to 132c on the generator 22 side are respectively arranged at positions farthest from the flange portion 126, and the motor The 24-side D1 to D3 terminal portions 134a to 134c are arranged at positions close to the flange portion 126, respectively, and the proximity position to the flange portion 126 in the control unit side connection portion 120 and the flange portion in the rotating electrical machine side connection portion 122 are arranged. The proximity position with respect to 126 is set to be reversed.

  The A1 to A3 terminal portions 128a to 128c on the generator 22 side in the control unit side connecting portion 120 and the C1 to C3 terminal portions 132a to 132c on the generator 22 side in the rotating electrical machine side connecting portion 122 are connected via a conductive portion (not shown). Are electrically connected. Further, the B1 to B3 terminal portions 130a to 130c on the motor 24 side in the control unit side connecting portion 120 and the D1 to D3 terminal portions 134a to 134c on the motor 24 side in the rotating electrical machine side connecting portion 122 are connected via a conductive portion (not shown). Are electrically connected.

  Next, a method for attaching the terminal block 106 to the first case 104a constituting the casing 102 will be described below. 4 is a perspective view showing a state before the terminal block is attached to the side opening of the first case, and FIG. 5 is a perspective view showing a state after the terminal block is attached to the side opening. It is.

  As shown in FIGS. 4 and 5, the first case 104 a constituting the casing 102 has a side opening 136 through which a part of the terminal block 106 is inserted, and a PCU connection electrically connected to the PCU 112. An upper opening 140 through which the portion 138 is inserted is provided. In this case, the control unit side connecting portion 120 of the terminal block 106 is inserted from the lateral direction along the side opening 136 of the first case 104a, and the flange portion 126 provided in the intermediate portion is provided on the first case 104a. The terminal block 106 is positioned by contacting the side wall. The terminal block 106 is fixed to the first case 104 a via a screw member 124 provided on the flange portion 126.

  The PCU 112 includes a PCU connection portion 138 that is electrically connected to an inverter or the like. The PCU connection portion 138 includes E1 to E3 terminal portions 142a to 142c on the generator 22 side to which the generator three-phase line 114a is connected. And a second PCU connection portion including F1 to F3 terminal portions 144a to 144c on the motor 24 side to which the motor three-phase wire 114b is connected. The first PCU connection part and the second PCU connection part are arranged in parallel along the horizontal direction.

  In this case, the PCU connection portion 138 is inserted in the vertical direction along the upper opening 140 of the first case 104a, and the plurality of terminal portions 142a to 142c and 144a to 144c of the PCU connection portion 138 face the opening 109. By being positioned at the position, the PCU 112 is fixed to the upper side of the first case 104a via a screw member (not shown).

  Next, a method of connecting the control unit side connection portion 120 of the terminal block 106 and the PCU connection portion 138 of the PCU 112 using the generator three-phase wire 114a and the motor three-phase wire 114b will be described below.

  6 is a perspective view showing a state in which the control unit side connection portion of the terminal block and the PCU connection portion are connected by a generator three-phase wire, and FIG. 7 is an exploded perspective view showing the shape of the generator three-phase wire. FIG. 8 is a perspective view showing a state in which the control unit side connecting portion of the terminal block and the PCU connecting portion are connected by the motor three-phase wire after the generator three-phase wire is connected, and FIG. It is a disassembled perspective view which shows the shape of the three-phase wire for use.

  As shown in FIG. 9, the generator three-phase line 114a is constituted by a first bus bar group including a plurality of bus bars 150a to 150c having a plate shape, and the motor three-phase line 114b is shown in FIG. Thus, it is comprised by the 2nd bus-bar group containing the some bus-bars 152a-152c which consist of plate shape.

  Each of the bus bars 150a to 150c and 152a to 152c constituting the first and second bus bar groups is provided with a rising portion 154 at an intermediate portion bent a plurality of times, and the first and second bus bar groups. Are provided in a non-contact state with each other via the rising portion 154.

  First, as shown in FIGS. 6 and 7, the B1-B3 terminals of the control unit side connecting portion 120 (motor 24 side) of the terminal block 106 using the second bus bar group (motor three-phase wire 114b). The motor 24 and the PCU 112 are electrically connected by fastening the portions 130a to 130c and the D1 to D3 terminal portions 144a to 144c of the PCU connection portion 138 with screw members (fastening members) 156. In the control unit side connecting portion 120 facing the opening 109, the B1 to B3 terminal portions 130a to 130c on the motor 24 side are located on the back side (bottom side) with respect to the A1 to A3 terminal portions 128a to 128c on the generator 22 side. Because.

  In this case, the extending direction of the bus bars 152a to 152c at the fastening portion of the B1 to B3 terminal portions 130a to 130c of the control unit side connecting portion 120 (motor 24 side) of the terminal block 106 by the second bus bar group is shown in FIG. It is set in the arrow X direction shown.

  After the B1-B3 terminal portions 130a-130c of the control unit side connecting portion 120 (motor 24 side) of the terminal block 106 and the D1-D3 terminal portions 144a-144c of the PCU connecting portion 138 are connected by the second bus bar group, As shown in FIG. 9, using the first bus bar group (generator three-phase wire 114a), the A1-A3 terminal portions 128a-128c of the control unit-side connecting portion 120 (generator 22 side) of the terminal block 106 and The generator 22 and the PCU 112 are electrically connected by fastening the C1 to C3 terminal portions 142a to 142c of the PCU connection portion 138 with screw members (fastening members) 156.

  In this case, the extending direction of the bus bars 150a to 150c at the fastening portions of the A1 to A3 terminal portions 128a to 128c of the control unit side connection portion 120 (generator 22 side) of the terminal block 106 by the first bus bar group is shown in FIG. It is set in the arrow Y direction shown. Therefore, the extending directions of the bus bars 150a to 150c and 152a to 152c at the fastening portion with the control unit side connection portion 120 by the first bus bar group and the second bus bar group are orthogonal to each other in the arrow Y direction and the arrow X direction. To be concluded. By fastening the bus bars 150a to 150c and 152a to 152c constituting the first bus bar group and the second bus bar group so that the extending directions are orthogonal to each other, the first bus bar group and the second bus bar group A sufficient insulation distance of the bus bar group can be secured and kept in a non-contact state.

  Note that the first bus bar group (150a to 150c) fastened after the second bus bar group (152a to 152c) is connected to the control unit side connection part 120 via the rising part 154 as shown in FIG. By connecting so as to straddle the screw members 156 of the first bus bar group fastened to the B1 to B3 terminal portions 130a to 130c, a sufficient insulation distance is secured in a non-contact state with the second bus bar group. The

  Next, the manufacturing process of the rotating electrical machine apparatus 100 according to the present embodiment will be described with reference to FIGS. 10 and 11, various members are attached to the first case 104 with the arrow Z direction as a common attachment direction with reference to the first case 104a seen from the arrow Z direction shown in FIG. ing.

  First, as shown in FIG. 10 (a), a terminal block having a control unit side connecting portion 120 at the front end side with respect to a rectangular side opening 136 formed in the first case 104a constituting the casing 102. Part of 106 is inserted, and the terminal block 106 is fixed to the first case 104a. In this case, as shown in FIG. 12A, the sealing performance can be improved by mounting an O-ring 158 corresponding to the shape of the side opening. Further, the terminal block 106 is fixed to the first case 104a by the screw member 124 provided on the flange portion 126 as described above (see FIG. 3A).

  In this case, the control unit side connecting portion 120 provided on one end side of the terminal block 106 attached to the first case 104a is the back side (back side) of the first case 104a in FIG. The rotating electrical machine side connecting portion 122 provided on the other end side of the terminal block 106 is attached to the opening 109 provided on the other end side of the terminal block 106, as shown in FIG. It is attached so as to be exposed on the near side of the case 104a.

  After the terminal block 106 is attached to the first case 104a, the stator 24b of the motor 24 is mounted in the annular recess 160 formed by the peripheral wall of the first case 104a, as shown in FIG. The three-phase wire 162a drawn from the outer peripheral edge of the stator 24b is connected to the D1-D3 terminal portions 134a-134c of the rotating electrical machine side connecting portion of the terminal block 106. Subsequently, as shown in FIG. 10C, the rotor 24 a is mounted in the stator 24 b of the connected motor 24. In this case, in the annular recessed part 160 formed in the 1st case 104a, it attaches so that one edge part of the motor 24 (2nd rotary electric machine) which consists of the stator 24b and the rotor 24a may be accommodated.

  Further, as shown in FIG. 10 (d), a through hole 108 having a shape corresponding to the peripheral wall of the first case 104 and through which the terminal block 106 passes is formed in the outer diameter portion, and the motor 24, the generator 22, A second case 104b that functions as a spacer is attached. By attaching the second case 104b, the other end of the motor 24 is covered.

  Subsequently, as shown in FIG. 11 (a), the stator 22b of the generator 22 is mounted in an annular recess 164 formed by the peripheral wall of the second case 104b, and the three-phase line drawn from the stator 22b. 162b is connected to the C1 to C3 terminal portions 132a to 132c of the rotating electrical machine side connecting portion 122. Subsequently, as shown in FIG. 11 (b), the rotor 22 a is mounted in the stator 22 b of the connected generator 22. In this case, in the annular recessed part 164 formed in the 2nd case 104b, it attaches so that one edge part of the generator 22 (1st rotary electric machine) which consists of the stator 22b and the rotor 22a may be accommodated.

  After the stator 22b and the rotor 22a of the generator 22 are attached, as shown in FIG. 11C, the third case 104c is attached to the second case 104b, and FIG. By mounting the fourth case 104d (see FIG. 2) not shown on the side surface of the first case 104a, the assembly of the rotating electrical machine apparatus 100 is completed (see FIG. 11D). The other end of the generator 22 is covered by attaching the third case 104c to the second case 104b.

  As described above, in the present embodiment, the second case 104b, the third case 104c, the motor 24 (the stator 24b and the rotor 24a), the generator 22 (the stator 22b and the rotor 22a), etc., with the first case 104a as a reference. Since the various components can be assembled from the same direction (the direction of arrow Z shown in FIG. 2), the assembling work can be simplified and the efficiency of the assembling work can be achieved.

  12A is a partially enlarged perspective view showing a state in which the terminal block is inserted into the side opening of the first case, and FIG. 12B is a diagram in which the three-phase wire of the motor is connected to the terminal block. FIG. 12C is a partially omitted perspective view showing the state where the three-phase wires of the generator are connected to the terminal block, and FIG. It is sectional drawing along the XII-XII line | wire.

  In the present embodiment, the three-phase wire 162a of the motor 24 (second rotating electrical machine) and the three-phase wire 162b of the generator 22 (first rotating electrical machine) are each drawn in a direction orthogonal to the rotation axis, and FIG. As shown in (d), the stator 24b of the motor 24 and the stator 22b of the generator 22 are provided so as to be drawn toward the terminal block 106 from end faces 170a, 170b on the opposite sides. Therefore, in this embodiment, the dimension T of the rotating electrical machine side connection part 122 in the terminal block 106 can be shortened, and the connection work of a three-phase wire can be performed simply.

  Next, a terminal block 106a according to a modification is shown in FIG. FIG. 13A is a perspective view of the terminal block according to the modification as viewed from the front, and FIG. 13B is a perspective view of the terminal block according to the modification as viewed from the back.

  The terminal block 106a according to this modification includes a first control in which A1 to A3 terminal portions (connecting portions) 128a to 128c corresponding to the generator three-phase wire 114a are arranged in parallel at a distance from the flange portion 126. A second control unit side connecting portion in which B1 to B3 terminal portions (connecting portions) 130a to 130c corresponding to the unit side connecting portion and the motor three-phase wire 114b are arranged in parallel at a distance from the flange portion 126. It is comprised by.

  The second control unit side connection portion having B1 to B3 terminal portions 130a to 130c is one end in the rotation axis direction from the first control unit side connection portion having A1 to A3 terminal portions 128a to 128c via the stepped portion. It is set relatively long because it is shifted to the side.

  In this case, the 1st control unit side connection part which consists of A1-A3 terminal part 128a-128c is arrange | positioned on the outer side in the radial direction of the said casing 102, and 2nd control which consists of B1-B3 terminal part 130a-130c. The unit side connecting portions are arranged adjacent to each other so as to be inside in the radial direction of the casing 102. In addition, the first control unit side connection portion including the A1 to A3 terminal portions 128a to 128c and the second control unit side connection portion including the B1 to B3 terminal portions 130a to 130c are relatively in the rotation axis direction. It is arranged at a shifted position.

  As described above, in the terminal block 106a according to the modification, the A1 to A3 terminal portions 128a to 128c and the B1 to B3 terminal portions 130a to 130c constituting the control unit side connecting portion on one end side are provided on the rotating electrical machine side on the other end side. Similar to the connection portion, the terminal block 106 is different from the terminal block 106 shown in FIGS. 3A and 3B in that it is arranged in multiple stages substantially parallel to the flange portion 126 via the stepped portion. Since other configurations and operational effects are the same as those of the terminal block 106 shown in FIGS. 3A and 3B, detailed description thereof is omitted.

14 Generator shaft (rotating shaft)
14a Inner circumference axis (rotary axis)
14b Outer shaft (rotary shaft)
22 Generator (first rotating electrical machine)
24 motor (second rotating electrical machine)
DESCRIPTION OF SYMBOLS 100 Rotating electrical machine apparatus 102 Casing 104a-104c 1st-3rd case 106, 106a Terminal block 112 PCU (1st control unit, 2nd control unit)
114a Three-phase wire for generator 114b Three-phase wire for motor 120 Control unit side connection portion 122 Rotating electric machine side connection portion 128a to 128c A1 to A3 terminal portion (first control unit side connection portion)
130a to 130c B1 to B3 terminal portion (second control unit side connection portion)
132a to 132c C1 to C3 terminal portion (first rotating electrical side connecting portion)
134a-134c D1-D3 terminal part (2nd rotation electrical side connection part)
150a to 150c bus bar (first bus bar group)
152a to 152c bus bar (second bus bar group)
162a, 162b Three-phase wire 170a, 170b End face

Claims (6)

A first rotating electric machine and a second rotating electric machine housed in a casing and having a rotating shaft;
A first control unit and a second control unit for driving and controlling the first rotating electric machine and the second rotating electric machine, respectively;
A rotating electrical machine apparatus including a terminal block provided in the casing for electrically connecting the first and second control units and the phase wires of the first and second rotating electrical machines to each other. There,
The terminal block is provided on one end side along the axial direction and is provided on the other end side along the axial direction, and a control unit side connecting portion that is electrically connected to the first and second control units, respectively. A rotating electrical machine side connection portion electrically connected to each of the first and second rotating electrical machines,
The control unit side connection part is a first control unit side in which connection parts corresponding to the respective phase lines of the first rotating electrical machine are formed in a step shape so as to gradually become longer from one side to the other side. A second control unit side connection portion in which a connection portion and a connection portion corresponding to each phase wire of the second rotating electrical machine are formed in a stepped manner so as to gradually become longer from the one side toward the other side. And
The first control unit side connection portion is disposed outside in the radial direction of the casing, and the second control unit side connection portion is adjacently disposed so as to be inside in the radial direction of the casing. In addition, the first control unit side connection portion and the second control unit side connection portion are arranged at positions relatively shifted in the rotation axis direction. . The rotating electrical machine apparatus according to claim 1,
The first rotating electrical machine and the second rotating electrical machine are disposed adjacent to each other in the rotational axis direction, and the phase lines of the first rotating electrical machine and the second rotating electrical machine are Pulled out in a direction perpendicular to the rotation axis direction,
The rotating electrical machine side connecting portion includes a first rotating electrical machine side connecting portion electrically connected to each phase line drawn from the first rotating electrical machine, and each phase drawn from the second rotating electrical machine. A second rotating electrical machine side connection portion electrically connected to the wire,
The first rotating electrical machine side connecting portion is disposed outside in the radial direction of the casing, and the second rotating electrical machine side connecting portion is disposed adjacently so as to be inside in the radial direction of the casing. The rotating electrical machine apparatus is characterized in that the first and second rotating electrical machine side connecting portions are disposed at positions relatively displaced in the rotational axis direction. The rotating electrical machine apparatus according to claim 2,
The respective phase lines of the first and second rotating electrical machines are drawn toward the terminal block from the opposing end surfaces of the first and second rotating electrical machines. . The rotating electrical machine apparatus according to claim 2 or 3,
The first and second control unit side connection portions are electrically connected to the first and second control units by first and second bus bar groups each having a plurality of plate shapes,
The first and second bus bar groups are disposed in a non-contact state with each other via a rising portion provided in an intermediate portion,
The second control unit side connection portion is set relatively long by being at a position shifted to one end side in the rotation axis direction from the first control unit side connection portion,
A fastening member is used so that the extending directions at the fastening portions of the first control unit side connection portion and the second control unit side connection portion by the first bus bar group and the second bus bar group are orthogonal to each other. The rotating electrical machine apparatus, wherein the first bus bar group is connected so as to straddle the fastening member of the second bus bar group. A first rotating electric machine and a second rotating electric machine housed in a casing and having a rotating shaft;
A first control unit and a second control unit for driving and controlling the first rotating electric machine and the second rotating electric machine, respectively;
A rotating electrical machine apparatus including a terminal block provided in the casing for electrically connecting the first and second control units and the phase wires of the first and second rotating electrical machines to each other. There,
The terminal block is provided on one end side along the axial direction and is provided on the other end side along the axial direction, and a control unit side connecting portion that is electrically connected to the first and second control units, respectively. A rotating electrical machine side connection portion electrically connected to each of the first and second rotating electrical machines,
The control unit side connection portion includes a first control unit side connection portion corresponding to each phase line of the first rotating electrical machine, and a second control unit side corresponding to each phase line of the second rotating electrical machine. Having a connection part,
The first control unit side connection portion is disposed outside in the radial direction of the casing, and the second control unit side connection portion is adjacently disposed so as to be inside in the radial direction of the casing. In addition, the first control unit side connection portion and the second control unit side connection portion are arranged at positions relatively shifted in the rotation axis direction. . A first rotating electric machine and a second rotating electric machine housed in a casing constituted by first to third cases;
A first control unit and a second control unit for controlling driving of the first rotating electric machine and the second rotating electric machine, respectively;
A terminal block that electrically connects the first and second control units and each of the phase wires of the first and second rotating electrical machines;
A method of manufacturing a rotating electrical machine apparatus including:
Attaching the terminal block to the first case;
Attaching to the first case so that one end of the second rotating electrical machine is housed, and connecting each phase wire of the second rotating electrical machine to the terminal block;
The second case, which is fixed adjacent to the first case and covers the other end of the second rotating electrical machine, and has a through hole through which the terminal block passes, is used as the first case. Attaching to the
Attaching to the second case so that one end of the first rotating electrical machine is housed, and connecting each phase wire of the first rotating electrical machine to the terminal block;
Attaching the third case so as to be fixed adjacent to the second case and to cover the other end of the first rotating electrical machine;
Have
In all the processes, the assembly direction is set in the same direction.

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