Conductive Unit

Abstract

To provide a conductive unit that can reduce cost and weight while ensuring insulation between a plurality of conductive members.SOLUTION: A conductive unit 10 includes a U-phase conductive member 11U, a V-phase conductive member 11V, and an insulating cover 12. The U-phase conductive member 11U includes a U-phase bus bar 110U and a molded member 13 integrally molded with the U-phase bus bar 110U. The V-phase conductive member 11V includes a V-phase bus bar 110V but does not include the molded member 13. The insulating cover 12 isolates the U-phase bus bar 110U from the V-phase bus bar 110V and is supported solely by the molded member 13.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a conductive unit including a plurality of conductive members. [Background technology]

[0002] In recent years, efforts to realize a low-carbon or carbon-free society have been gaining momentum, and the electrification of drive sources has progressed rapidly in order to reduce CO2 emissions.

[0003] Furthermore, in the field of electrification of drive sources, research and development is being conducted to improve energy efficiency by developing rotating electrical machines with better energy efficiency and by reducing losses when transferring power to and from rotating electrical machines.

[0004] Generally, a conductive unit such as a busbar unit including a plurality of conductive members such as busbars is used to transmit and receive electric power to a rotating electric machine. The conductive unit is required to be able to transmit and receive large amounts of electric power with low loss while ensuring insulation between the conductive members. For example, Patent Document 1 describes a conductive unit including three conductive members (electrical conductors) and an insulating member (inverter terminal block) that houses the three conductive members and separates the three conductive members from each other. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] International Publication No. 2011 / 055806 Summary of the Invention [Problem to be solved by the invention]

[0006] However, in the conductive unit of Patent Document 1, the insulating member (inverter terminal block) is supported by the motor case, which requires the insulating member (inverter terminal block) to be provided with a fixing portion for fixing the insulating member (inverter terminal block) to the motor case, leaving room for improvement in terms of cost and weight reduction.

[0007] The present invention contributes to the electrification of drive sources to reduce CO2 emissions, and further provides a conductive unit that can achieve low cost and weight reduction while ensuring insulation between multiple conductive members. [Means for solving the problem]

[0008] The present invention provides A plurality of conductive members; a conductive unit including an insulating member, The plurality of conductive members include: a first conductive member having a conductor and a molded member integrally molded with the conductor; a second conductive member having a conductor and not having the molding member; The insulating member separates the conductors of the plurality of conductive members from each other and is supported only by the molding member. 、 The plurality of conductive members include: a third conductive member having a conductor but not having the molding member; the first conductive member, the second conductive member, and the third conductive member are arranged side by side in a first direction, the second conductive member is disposed on one side of the first conductive member in the first direction, the third conductive member is disposed on the other side of the first conductive member in the first direction, Each of the conductors of the second conductive member and the third conductive member has a bent portion that is bent toward a side away from the first conductive member in the first direction in a region that overlaps with the molding member when viewed from the first direction. . [Effects of the Invention]

[0009] According to the present invention, the insulating members that separate the conductors of the plurality of conductive members are supported only by the molded member, so that the insulating members can be fixed without providing fixing portions for fixing the insulating members on the insulating members, thereby achieving cost reduction and weight reduction while ensuring insulation between the plurality of conductive members. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a left side view of a main part of the interior of a vehicle drive device equipped with a conductive unit according to an embodiment of the present invention; [Figure 2] FIG. 2 is a perspective view of a conductive unit according to an embodiment of the present invention. [Figure 3] 3 is a view of the conductive unit of FIG. 2 as seen from the other side in the X direction (X2 side). FIG. [Figure 4] 3 is a view of the U-phase conductive member of the conductive unit of FIG. 2 as viewed from the other side in the X direction (X2 side). FIG. [Figure 5] 3 is an enlarged view of a region A of the conductive unit in FIG. 2. DETAILED DESCRIPTION OF THE INVENTION

[0011] An embodiment of the conductive unit of the present invention will be described below with reference to the accompanying drawings. The drawings should be viewed in the direction indicated by the reference numerals.

[0012] As shown in Fig. 1, the conductive unit 10 of this embodiment is attached to a vehicle drive device 20 mounted on a vehicle V. In this specification and the like, for simplicity and clarity of explanation, the front-rear, left-right, and up-down directions are described according to the direction as seen from the driver of the vehicle V, and in Fig. 1, the front of the vehicle is indicated as Fr, the rear as Rr, the left as L, the right as R, the up as U, and the down as D. The left-right direction is also referred to as the vehicle width direction.

[0013] [Overall configuration of vehicle drive system] The vehicle drive device 20 includes a first rotating electric machine 30, a second rotating electric machine 40, a transmission 50, and a drive device case 60. The first rotating electric machine 30, the second rotating electric machine 40, and the transmission 50 are housed in the drive device case 60. A power conversion device (not shown) is disposed on the upper surface of the drive device case 60. The conductive unit 10 electrically connects the first rotating electric machine 30 housed in the drive device case 60 to the power conversion device (not shown) disposed outside the drive device case 60.

[0014] [First Rotating Electric Machine] The first rotating electric machine 30 is a generator that generates electricity using the power of an internal combustion engine (not shown) mounted on the vehicle V. The electric power generated by the first rotating electric machine 30 is supplied to an electric storage device (not shown) mounted on the vehicle V or to the second rotating electric machine 40 via a power conversion device (not shown).

[0015] The first rotating electric machine 30 has a first rotor 31 having an approximately circular ring shape that rotates around a first rotation axis RC1 that extends horizontally in the vehicle width direction of the vehicle V, and a first stator 32 that is arranged radially at a predetermined distance from the outer peripheral surface of the first rotor 31.

[0016] During normal driving of the first rotating electrical machine 30, the first rotor 31 rotates clockwise as viewed from the left side of the first rotation axis RC1. Therefore, during normal driving of the first rotating electrical machine 30, the upper end 31a of the first rotor 31 rotates rearward.

[0017] The first stator 32 includes a first stator core 321 having a substantially annular shape with a cylindrical inner peripheral surface spaced a predetermined distance radially from the outer peripheral surface of the first rotor 31, and a first coil 322 attached to the first stator core 321 and having a substantially annular shape when viewed in the axial direction of the first rotating shaft RC1, i.e., the width direction of the vehicle V. The first stator core 321 is provided with a plurality of fixing portions 321a protruding radially outward, and each fixing portion 321a is provided with a through-hole 321b penetrating in the axial direction of the first rotating shaft RC1. A fastening bolt 33 is inserted into each of the through-holes 321b of the fixing portions 321a, and the first stator 32 is fixed to the drive unit case 60 by fastening each fastening bolt 33 to the drive unit case 60.

[0018] The first coil 322 has windings for three phases: U, V, and W. The first coil 322 has a left coil end portion 322L that protrudes outward in the axial direction of the first rotating shaft RC1, i.e., to the left in the vehicle width direction, from a stator core left end face 321L that is an end face on one end side of the first stator core 321 in the axial direction of the first rotating shaft RC1 (in this embodiment, the end face on the left end side in the vehicle width direction of the vehicle V). Similarly, although not shown, the first coil 322 has a right coil end portion that protrudes outward in the axial direction of the first rotating shaft RC1, i.e., to the right in the vehicle width direction, from a stator core right end face that is an end face on the other end side of the first stator core 321 in the axial direction of the first rotating shaft RC1 (in this embodiment, the end face on the right end side in the vehicle width direction of the vehicle V).

[0019] [Second Rotating Electric Machine] The second rotating electric machine 40 is an electric motor that outputs power to drive the vehicle V using electric power stored in an electric storage device (not shown) mounted on the vehicle V or electric power generated by the first rotating electric machine 30, which is a generator. When the vehicle V is braking, the second rotating electric machine 40 may generate electric power using the kinetic energy of the drive wheels of the vehicle V to charge the aforementioned electric storage device.

[0020] The second rotating electric machine 40 includes a second rotor 41 having a substantially annular shape that rotates about a second rotating axis RC2 that extends horizontally in the vehicle width direction of the vehicle V parallel to the first rotating axis RC1, and a second stator 42 that is disposed at a predetermined distance in the radial direction from the outer circumferential surface of the second rotor 41. The second rotating axis RC2 extends horizontally in the vehicle width direction of the vehicle V parallel to the first rotating axis RC1, rearward and upward from the first rotating axis RC1. In this embodiment, the second rotating electric machine 40 is disposed so that at least a portion of the second rotating electric machine 40 overlaps with the first rotating electric machine 30 in the front-rear direction when viewed from the vertical direction, and so that at least a portion of the second rotating electric machine 40 overlaps with the first rotating electric machine 30 in the front-rear direction when viewed from the vertical direction.

[0021] During normal driving of the second rotating electric machine 40, the second rotor 41 rotates clockwise as viewed from the left side in the direction of the second rotation axis RC2. Therefore, during normal driving of the second rotating electric machine 40, the upper end of the second rotor 41 rotates rearward.

[0022] The second stator 42 includes a second stator core 421 having a substantially annular shape and a cylindrical inner circumferential surface spaced a predetermined distance radially from the outer circumferential surface of the second rotor 41, and a second coil 422 attached to the second stator core 421 and having a substantially annular shape when viewed in the axial direction of the second rotating shaft RC2, i.e., the width direction of the vehicle V. The second stator core 421 is provided with a plurality of fixing portions 421a protruding radially outward, and each fixing portion 421a is provided with a through-hole 421b penetrating in the axial direction of the second rotating shaft RC2. A fastening bolt 43 is inserted into each of the through-holes 421b of the fixing portions 421a, and the second stator 42 is fixed to the drive unit case 60 by fastening each fastening bolt 43 to the drive unit case 60.

[0023] The second coil 422 has three-phase windings: U-phase, V-phase, and W-phase. The second coil 422 has a left coil end portion 422L that protrudes outward in the axial direction of the second rotating shaft RC2, i.e., to the left in the vehicle width direction, from a stator core left end face 421L that is an end face on one end side of the second stator core 421 in the axial direction of the second rotating shaft RC2, i.e., from a stator core right end face that is an end face on the right end side of the vehicle width direction in this embodiment. Similarly, although not shown, the second coil 422 has a right coil end portion that protrudes outward in the axial direction of the second rotating shaft RC2, i.e., from a stator core right end face that is an end face on the other end side of the second stator core 421 in the axial direction of the second rotating shaft RC2, i.e., from a stator core right end face that is an end face on the right end side of the vehicle width direction in this embodiment.

[0024] The second rotating electric machine 40 is provided with a coil guard 44 that covers at least a portion of the circumferential direction of the left coil end portion 422L. The coil guard 44 covers the outer peripheral surface and left end surface of the left coil end portion 422L in the front lower region when viewed from the vehicle width direction. The coil guard 44 is also arranged so as to intersect with an imaginary line connecting the first rotating axis RC1 of the first rotating electric machine 30 and the second rotating axis RC2 of the second rotating electric machine 40 when viewed from the vehicle width direction.

[0025] The coil guard 44 prevents direct contact between the left coil end portion 322L of the first rotating electric machine 30 and the left coil end portion 422L of the second rotating electric machine 40 when a load is input from the front to the drive device case 60 and the first rotating electric machine 30 is displaced rearward, such as during a frontal collision of the vehicle V. This prevents direct contact between the left coil end portion 322L of the first rotating electric machine 30 and the left coil end portion 422L of the second rotating electric machine 40 and a short circuit, for example, from occurring, even when a load is input from the front to the drive device case 60 and the first rotating electric machine 30 is displaced rearward, such as during a frontal collision of the vehicle V.

[0026] [Transmission] The transmission 50 is mechanically coupled to the second rotating electric machine 40, and is a device that reduces the speed of the power output from the second rotating electric machine 40 and transmits it to the drive wheels. The transmission 50 is, for example, a gear-type power transmission device. Note that the transmission 50 may be mechanically coupled to an internal combustion engine (not shown) mounted on the vehicle V, in addition to the second rotating electric machine 40. In this case, the transmission 50 reduces the speed of the power output from the second rotating electric machine 40 and / or the power output from the internal combustion engine and transmits it to the drive wheels.

[0027] [Drive unit case] Inside the drive unit case 60, there are provided a first drip pipe 61 disposed above the first rotating electric machine 30 and extending in the axial direction of the first rotating shaft RC1, and a second drip pipe 62 disposed above the second rotating electric machine 40 and extending in the axial direction of the second rotating shaft RC2. In this embodiment, two first drip pipes 61 are provided, one in front of the first rotating shaft RC1 and one behind the first rotating shaft RC1. Furthermore, two second drip pipes 62 are provided, one in front of the second rotating shaft RC2 and one behind the second rotating shaft RC2.

[0028] In this embodiment, refrigerant is supplied to the first drip pipe 61 and the second drip pipe 62 from the outside of the drive unit case 60. A plurality of drip holes (not shown) opening downward are formed in the outer peripheral surface of each first drip pipe 61 and each second drip pipe 62 along the axial direction of each first drip pipe 61 and each second drip pipe 62. The refrigerant supplied to each first drip pipe 61 and each second drip pipe 62 from the outside of the drive unit case 60 drips from the drip holes of each first drip pipe 61 onto the outer peripheral surface of the first rotating electric machine 30, and drips from the drip holes of each second drip pipe 62 onto the outer peripheral surface of the second rotating electric machine 40. The refrigerant dripped from the drip holes of each first drip pipe 61 onto the first rotating electric machine 30 comes into contact with and cools the first rotating electric machine 30, and then flows downward below the first rotating electric machine 30 by gravity. Similarly, the refrigerant dripping from the drip holes of each second drip pipe 62 onto the second rotating electric machine 40 comes into contact with the second rotating electric machine 40 to cool it, and then flows downward below the second rotating electric machine 40 due to gravity.

[0029] A refrigerant reservoir 64 is formed in the lower part of the drive unit case 60. The refrigerant reservoir 64 stores the refrigerant that has dripped from the drip holes of the first drip pipes 61 to cool the first rotating electric machine 30, and the refrigerant that has dripped from the drip holes of the second drip pipes 62 to cool the second rotating electric machine 40. That is, the refrigerant that has dripped from the drip holes of the first drip pipes 61 to cool the first rotating electric machine 30 flows downward by gravity below the first rotating electric machine 30 and is stored in the refrigerant reservoir 64, and the refrigerant that has dripped from the drip holes of the second drip pipes 62 to cool the second rotating electric machine 40 flows downward by gravity below the second rotating electric machine 40 and is stored in the refrigerant reservoir 64.

[0030] The refrigerant reservoir 64 is formed in the front lower portion of the drive device case 60, below the first rotating electric machine 30, and the refrigerant is stored in the refrigerant reservoir 64 so that at least a portion of the first rotating electric machine 30 is immersed in the refrigerant. Therefore, when the first rotating electric machine 30 is driven, the refrigerant stored in the refrigerant reservoir 64 is stirred up by the rotating first rotor 31, and the refrigerant stirred up by the first rotor 31 is scattered inside the drive device case 60, regulating the temperature of the first rotating electric machine 30, the second rotating electric machine 40, the transmission 50, etc. This improves the temperature regulation performance of the vehicle drive device 20.

[0031] [Power distribution components] A first connector unit 81 and a second connector unit 82 are provided on the top surface of the drive unit case 60. In this embodiment, the first connector unit 81 is provided at the front and the second connector unit 82 is provided at the rear, and are arranged side by side in the front-to-rear direction on the top surface of the drive unit case 60. A terminal block 91 is also provided inside the drive unit case 60. In this embodiment, the terminal block 91 is provided above the first rotating electric machine 30.

[0032] The first connector unit 81 is inserted vertically through the top surface of the drive unit case 60. The top end of the first connector unit 81 is exposed upward from the top surface of the drive unit case 60, and the bottom end of the first connector unit 81 is located inside the drive unit case 60.

[0033] An external connector section 811 having three terminal sections 811U, 811V, and 811W for U, V, and W phases is provided at the upper end of the first connector unit 81 in a portion exposed upward from the upper surface of the drive device case 60. An internal connector section 812 having three terminal sections 812U, 812V, and 812W for U, V, and W phases is provided at the lower end of the first connector unit 81 inside the drive device case 60.

[0034] The three terminal portions 811U, 811V, and 811W of the external connector portion 811 for the U, V, and W phases are connected to conductive members of the U, V, and W phases, respectively, which are electrically connected to a power conversion device (not shown) arranged above the drive device case 60.

[0035] U-phase, V-phase, and W-phase wiring members 92U, 92V, and 92W are connected to three U-phase, V-phase, and W-phase terminal portions 91U, 91V, and 91W of terminal block 91. One ends of wiring members 92U, 92V, and 92W are connected to three U-phase, V-phase, and W-phase terminal portions 91U, 91V, and 91W of terminal block 91, respectively, and the other ends of wiring members 92U, 92V, and 92W are connected to U-phase, V-phase, and W-phase windings of first coil 322, respectively.

[0036] The second connector unit 82 is inserted vertically through the top surface of the drive unit case 60. The top end of the second connector unit 82 is exposed upward from the top surface of the drive unit case 60, and the bottom end of the second connector unit 82 is located inside the drive unit case 60.

[0037] An external connector section 821 having three terminal sections 821U, 821V, and 821W for U, V, and W phases is provided at the upper end of the second connector unit 82 in a portion exposed upward from the upper surface of the drive device case 60. An internal connector section 822 having three terminal sections 822U, 822V, and 822W for U, V, and W phases is provided at the lower end of the second connector unit 82 inside the drive device case 60.

[0038] The three terminal portions 821U, 821V, 821W of the external connector portion 821 for the U phase, V phase, and W phase are connected to conductive members of the U phase, V phase, and W phase, respectively, which are electrically connected to a power conversion device (not shown) arranged above the drive device case 60.

[0039] U-phase, V-phase, and W-phase wiring members 93U, 93V, and 93W are connected to three U-phase, V-phase, and W-phase terminal portions 822U, 822V, and 822W of internal connector portion 822. One ends of wiring members 93U, 93V, and 93W are connected to three U-phase, V-phase, and W-phase terminal portions 822U, 822V, and 822W of internal connector portion 822, respectively, and the other ends of wiring members 93U, 93V, and 93W are connected to U-phase, V-phase, and W-phase windings of second coil 422, respectively.

[0040] The conductive unit 10 is disposed above the first rotating electric machine 30. The conductive unit 10 connects three terminal portions 812U, 812V, 812W of the U-phase, V-phase, and W-phase of the internal connector portion 812 of the first connector unit 81 to three terminal portions 91U, 91V, 91W of the U-phase, V-phase, and W-phase of the terminal block 91, respectively.

[0041] Therefore, the conductive unit 10 electrically connects the first rotating electric machine 30 housed in the drive unit case 60 to a power conversion device (not shown) arranged outside the drive unit case 60, and exchanges electric power with the first rotating electric machine 30 housed in the drive unit case 60.

[0042] In this way, since the conductive unit 10 is disposed above the first rotating electrical machine 30, the conductive unit 10 can be prevented from being affected by heat generated as the first rotating electrical machine 30 is driven.

[0043] [Conductive unit details] As shown in FIGS. 2 and 3, the conductive unit 10 includes a U-phase conductive member 11U, a V-phase conductive member 11V, and a W-phase conductive member 11W, and an insulating cover 12.

[0044] U-phase conductive member 11U includes U-phase bus bar 110U and molded member 13 molded integrally with U-phase bus bar 110U. Molded member 13 is made of a non-insulating material such as resin. U-phase bus bar 110U has a first end 111U connected to a U-phase terminal 812U of internal connector 812 of first connector unit 81, and a second end 112U connected to a U-phase terminal 91U of terminal block 91.

[0045] V-phase conductive member 11V has a V-phase bus bar 110V, and does not have a molded member 13. A first end 111V of V-phase bus bar 110V is connected to a V-phase terminal portion 812V of internal connector portion 812 of first connector unit 81, and a second end 112V is connected to a V-phase terminal portion 91V of terminal block 91.

[0046] The W-phase conductive member 11W has a W-phase bus bar 110W, and does not have a molded member 13. The W-phase bus bar 110W has a first end 111W connected to a W-phase terminal portion 812W of the internal connector portion 812 of the first connector unit 81, and a second end 112W connected to a W-phase terminal portion 91W of the terminal block 91.

[0047] In this way, the U-phase busbar 110U, the V-phase busbar 110V, and the W-phase busbar 110W electrically connect the first rotating electric machine 30 housed in the drive unit case 60 to a power conversion device (not shown) arranged outside the drive unit case 60.

[0048] Insulating cover 12 is made of a non-insulating material such as resin. Insulating cover 12 separates U-phase bus bar 110U, V-phase bus bar 110V, and W-phase bus bar 110W from one another. Insulating cover 12 covers a portion of U-phase bus bar 110U, V-phase bus bar 110V, and W-phase bus bar 110W to protect each bus bar.

[0049] U-phase conductive member 11U, V-phase conductive member 11V, and W-phase conductive member 11W are arranged side by side in the X direction. U-phase conductive member 11U, V-phase conductive member 11V, and W-phase conductive member 11W all extend in the Y direction, which is perpendicular to the X direction.

[0050] For clarity and simplicity of explanation, the X-direction defines the arrangement direction of U-phase conductive member 11U, V-phase conductive member 11V, and W-phase conductive member 11W, the Y-direction defines the direction perpendicular to the X-direction and perpendicular to both the X-direction and the Y-direction of U-phase conductive member 11U, V-phase conductive member 11V, and W-phase conductive member 11W, and the Z-direction defines the direction perpendicular to both the X-direction and the Y-direction. 2 to 5, for convenience, one side in the X-direction is indicated as X1, the other side in the X-direction as X2, one side in the Y-direction as Y1, the other side in the Y-direction as Y2, one side in the Z-direction as Z1, and the other side in the Z-direction as Z2. Furthermore, the side on which the first ends 111U, 111V, 111W of the U-phase busbar 110U, V-phase busbar 110V, and W-phase busbar 110W are located is defined as one side in the Y direction (Y1 side), and the side on which the second ends 112U, 112V, 112W of the U-phase busbar 110U, V-phase busbar 110V, and W-phase busbar 110W are located is defined as the other side in the Y direction (Y2 side).

[0051] U-phase conductive member 11U, V-phase conductive member 11V, and W-phase conductive member 11W are arranged side by side in the X direction from one side (X1 side) to the other side (X2 side) in the order of V-phase conductive member 11V, U-phase conductive member 11U, and W-phase conductive member 11W. That is, V-phase conductive member 11V is arranged on one side (X1 side) of U-phase conductive member 11U in the X direction, and W-phase conductive member 11W is arranged on the other side (X2 side) of U-phase conductive member 11U in the X direction.

[0052] The insulating cover 12 includes a bottom 120 that covers at least a portion of one side (Z1 side) of the U-phase conductive member 11U, the V-phase conductive member 11V, and the W-phase conductive member 11W in the Z direction; a one-side side wall 121a that extends from the bottom 120 toward the other side (Z2 side) in the Z direction and covers at least a portion of one side (X1 side) in the X direction of the V-phase conductive member 11V that is located furthest to the other side (X1 side) in the X direction among the U-phase conductive member 11U, the V-phase conductive member 11V, and the W-phase conductive member 11W; and an other-side side wall 121b that extends from the bottom 120 toward the other side (Z2 side) in the Z direction and covers at least a portion of the other side (X2 side) in the X direction of the W-phase conductive member 11W that is located furthest to the other side (X2 side) in the X direction among the U-phase conductive member 11U, the V-phase conductive member 11V, and the W-phase conductive member 11W.

[0053] The insulating cover 12 further includes a first insulating wall portion 122a that protrudes from the bottom portion 120 toward the other side in the Z direction (Z2 side) and extends in the Y direction between the U-phase conductive member 11U and the V-phase conductive member 11V, and a second insulating wall portion 122b that extends in the Y direction between the U-phase conductive member 11U and the W-phase conductive member 11W.

[0054] The first insulating wall portion 122a covers at least a portion of one side in the X direction (X1 side) of the U-phase conductive member 11U.

[0055] The second insulating wall portion 122b covers at least a portion of the other side in the X direction (X2 side) of the U-phase conductive member 11U.

[0056] The insulating cover 12 further includes a third insulating wall portion 122c that protrudes from the bottom portion 120 toward the other side in the Z direction (Z2 side) and extends in the Y direction between the first insulating wall portion 122a and the V-phase conductive member 11V, and a fourth insulating wall portion 122d that protrudes from the bottom portion 120 toward the other side in the Z direction (Z2 side) and extends in the Y direction between the second insulating wall portion 122b and the W-phase conductive member 11W.

[0057] The third insulating wall portion 122c covers at least a portion of the other side in the X direction (X2 side) of the V-phase conductive member 11V.

[0058] The fourth insulating wall portion 122d covers at least a portion of one side in the X direction (X1 side) of the W-phase conductive member 11W.

[0059] The first insulating wall portion 122a and the second insulating wall portion 122b are each formed with a locking claw 123 for locking the molded member 13 of the U-phase conductive member 11U. The locking claw 123 formed on the first insulating wall portion 122a protrudes from the first insulating wall portion 122a toward the other side in the X direction (X2 side). The locking claw 123 formed on the second insulating wall portion 122b protrudes from the second insulating wall portion 122b toward one side in the X direction (X1 side).

[0060] The U-phase conductive member 11U is inserted between the first insulating wall portion 122a and the second insulating wall portion 122b from the other side in the Z direction (the Z2 side). Then, the molded member 13 of the U-phase conductive member 11U is locked by the locking claws 123 formed on the first insulating wall portion 122a and the second insulating wall portion 122b. In this way, the locking claws 123 of the first insulating wall portion 122a and the second insulating wall portion 122b lock the molded member 13, and the insulating cover 12 is supported by the molded member 13.

[0061] In this way, the insulating cover 12 is supported only by the molded member 13 .

[0062] The insulating cover 12 is supported by the molded member 13 of the U-phase conductive member 11U, and the first ends 111U, 111V, 111W of the U-phase bus bar 110U, the V-phase bus bar 110V, and the W-phase bus bar 110W are connected to the terminal portions 812U, 812V, 812W of the internal connector portion 812 of the first connector unit 81, respectively. Furthermore, when the second ends 112U, 112V, 112W of the W-phase busbar 110W are connected to the terminal portions 91U, 91V, 91W of the terminal block 91, respectively, the V-phase conductive member 11V is arranged so as to pass between the one side wall portion 121a and the third insulating wall portion 122c, and the W-phase conductive member 11W is arranged so as to pass between the other side wall portion 121b and the fourth insulating wall portion 122d.

[0063] In this way, insulating cover 12, which separates the conductors of the plurality of conductive members from each other, in this embodiment, U-phase bus bar 110U, V-phase bus bar 110V, and W-phase bus bar 110W, is supported only by molded member 13, and therefore insulating cover 12 can be fixed without providing insulating cover 12 with a fixing portion for fixing insulating cover 12 to another member such as drive device case 60. This makes it possible to achieve cost and weight reduction while ensuring insulation between the conductors of the plurality of conductive members, in this embodiment, U-phase bus bar 110U, V-phase bus bar 110V, and W-phase bus bar 110W.

[0064] Furthermore, V-phase conductive member 11V is disposed on one side (X1 side) of U-phase conductive member 11U having molded member 13 in the X direction, and W-phase conductive member 11W is disposed on the other side (X2 side) of U-phase conductive member 11U having molded member 13 in the X direction. In this manner, of U-phase conductive member 11U, V-phase conductive member 11V, and W-phase conductive member 11W aligned in the X direction, U-phase conductive member 11U located in the center has molded member 13, and insulating cover 12 is supported by molded member 13 of U-phase conductive member 11U located in the center. This allows insulating cover 12 to be supported more stably than if it were supported by a conductive member located at an end of U-phase conductive member 11U, V-phase conductive member 11V, and W-phase conductive member 11W aligned in the X direction, in this embodiment, V-phase conductive member 11V or W-phase conductive member 11W.

[0065] Next, we will explain the conductive unit 10 in a state where the insulating cover 12 is supported by the molded member 13 of the U-phase conductive member 11U, the first ends 111U, 111V, 111W of the U-phase bus bar 110U, the V-phase bus bar 110V, and the W-phase bus bar 110W are respectively connected to the terminal portions 812U, 812V, 812W of the internal connector portion 812 of the first connector unit 81, and the second ends 112U, 112V, 112W of the U-phase bus bar 110U, the V-phase bus bar 110V, and the W-phase bus bar 110W are respectively connected to the terminal portions 91U, 91V, 91W of the terminal block 91.

[0066] First ends 111U, 111V, 111W of bus bars 110U, 110V, 110W of U-phase conductive member 11U, V-phase conductive member 11V, and W-phase conductive member 11W are exposed from insulating cover 12 and are spaced apart from one another in the Z direction. Similarly, second ends 112U, 112V, 112W of bus bars 110U, 110V, 110W of U-phase conductive member 11U, V-phase conductive member 11V, and W-phase conductive member 11W are exposed from insulating cover 12 and are spaced apart from one another in the Z direction.

[0067] As a result, the first ends 111U, 111V, 111W and second ends 112U, 112V, 112W of each bus bar 110U, 110V, 110W of the U-phase conductive member 11U, V-phase conductive member 11V, and W-phase conductive member 11W are formed so as to be spaced apart from each other in the Z direction, thereby improving the insulation between the first ends 111U, 111V, 111W and between the second ends 112U, 112V, 112W exposed from the insulating cover 12.

[0068] Furthermore, the V-phase busbar 110V has a bending portion 113V in the region sandwiched between one side wall portion 121a and the first insulating wall portion 122a of the insulating cover 12, which overlaps with the molded member 13 when viewed from the X direction, that is, bending toward the side away from the U-phase conductive member 11U in the X direction, i.e., toward one side in the X direction (X1 side).

[0069] In addition, the W-phase busbar 110W has a bending portion 113W that is bent toward the side away from the U-phase conductive member 11U in the X direction, i.e., toward the other side of the X direction (X2 side), in the region sandwiched between the other side wall portion 121b and the second insulating wall portion 122b of the insulating cover 12 and overlapping with the molded member 13 when viewed from the X direction.

[0070] This allows the distance in the X direction between V-phase busbar 110V and U-phase conductive member 11U, and the distance in the X direction between W-phase busbar 110W and U-phase conductive member 11U to be increased in the region that does not overlap with molded member 13 when viewed from the X direction, thereby further improving the insulation between each of U-phase busbar 110U, V-phase busbar 110V, and W-phase busbar 110W.

[0071] A portion of U-phase busbar 110U near first end 111U is bent toward the other side in the Z direction (Z2 side) and exposed toward the other side in the Z direction (Z2 side) and one side in the Y direction (Y1 side) from insulating cover 12. First end 111U of U-phase busbar 110U is exposed toward the other side in the Z direction (Z2 side) and one side in the Y direction (Y1 side) from insulating cover 12.

[0072] First end 111V of V-phase busbar 110V is exposed on one side (Y1 side) in the Y direction of insulating cover 12, and is located on one side (Z1 side) in the Z direction of first end 111U of U-phase busbar 110U.

[0073] A portion of W-phase busbar 110W near first end 111W is bent toward one side in the Z direction (Z1 side) and exposed toward one side in the Y direction (Y1 side) from insulating cover 12. First end 111W of W-phase busbar 110W is exposed toward one side in the Y direction (Y1 side) of insulating cover 12, and is located toward one side in the Z direction (Z1 side) of first end 111V of V-phase busbar 110V.

[0074] In this way, first end 111U of U-phase busbar 110U, first end 111V of V-phase busbar 110V, and first end 111W of W-phase busbar 110W are arranged side by side in the Z direction in the following order from one side (Z1 side) in the Z direction to the other side (Z2 side) in the Z direction: first end 111W of W-phase busbar 110W, first end 111V of V-phase busbar 110V, first end 111U of U-phase busbar 110U. Furthermore, first end 111U of U-phase busbar 110U, first end 111V of V-phase busbar 110V, and first end 111W of W-phase busbar 110W are positioned at approximately the same position in the X direction.

[0075] A portion of U-phase bus bar 110U near second end 112U is bent toward the other side in the Z direction (Z2 side) and exposed to the other side in the Z direction (Z2 side) and the other side in the Y direction (Y2 side) from insulating cover 12. Second end 112U of U-phase bus bar 110U is exposed to the other side in the Z direction (Z2 side) and the other side in the Y direction (Y2 side) from insulating cover 12.

[0076] Second end 112V of V-phase busbar 110V is exposed on the other Y-direction side (Y2 side) of insulating cover 12, and is located on one Z-direction side (Z1 side) of second end 112U of U-phase busbar 110U.

[0077] A portion of W-phase busbar 110W near second end 112W is bent toward one side in the Z direction (Z1 side) and exposed toward the other side in the Y direction (Y2 side) from insulating cover 12. Second end 112W of W-phase busbar 110W is exposed toward the other side in the Y direction (Y2 side) of insulating cover 12, and is located on one side in the Z direction (Z1 side) of second end 112V of V-phase busbar 110V.

[0078] In this way, second end 112U of U-phase busbar 110U, second end 112V of V-phase busbar 110V, and second end 112W of W-phase busbar 110W are arranged side by side in the Z direction in the following order from one side (Z1 side) in the Z direction to the other side (Z2 side) in the Z direction: second end 112W of W-phase busbar 110W, second end 112V of V-phase busbar 110V, second end 112U of U-phase busbar 110U. Furthermore, second end 112U of U-phase busbar 110U, second end 112V of V-phase busbar 110V, and second end 112W of W-phase busbar 110W are positioned at approximately the same position in the X direction.

[0079] [Arrangement of conductive unit in drive unit case] Next, returning to FIG. 1, the arrangement of the conductive unit 10 in the drive device case 60 will be described.

[0080] The conductive unit 10 is arranged inside the drive unit case 60 so that the X direction extends parallel to the first rotating axis RC1 of the first rotating electric machine 30, i.e., parallel to the vehicle width direction, with one side in the X direction (X1 side) being the right side and the other side in the X direction (X2 side) being the left side.

[0081] Furthermore, the conductive unit 10 is disposed inside the drive device case 60 so that the Y direction is inclined upward toward the rotation direction of the upper end 31a of the first rotor 31 of the first rotating electrical machine 30 with respect to the vertical direction, and so that one side in the Y direction (Y1 side) is the upper side and the other side in the Y direction (Y2 side) is the lower side. In this embodiment, the conductive unit 10 is disposed inside the drive device case 60 so that the Y direction is inclined upward toward the rear with respect to the vertical direction, and so that one side in the Y direction (Y1 side) is the upper side and the other side in the Y direction (Y2 side) is the lower side.

[0082] The conductive unit 10 is disposed inside the drive device case 60 such that one side in the Z direction (Z1 side) faces the second rotating electric machine 40 and the other side in the Z direction (Z2 side) faces upward in the Z direction. In this embodiment, the conductive unit 10 is disposed inside the drive device case 60 such that one side in the Z direction (Z1 side) faces downward and rearward and the other side in the Z direction (Z2 side) faces upward and frontward.

[0083] The conductive unit 10 is disposed inside the drive device case 60 such that the lower end 120a of the bottom 120 of the insulating cover 12 overlaps with the first rotating electric machine 30 when viewed vertically. Furthermore, the conductive unit 10 is disposed inside the drive device case 60 such that the bottom 120 of the insulating cover 12 faces the outer peripheral surface of the second rotating electric machine 40, and covers at least a portion of the outer peripheral surface of the second rotating electric machine 40 in the circumferential direction of the second rotating electric machine 40.

[0084] Thus, inside the drive device case 60, the conductive unit 10 extends in the X direction parallel to the first rotation axis RC1 of the first rotating electrical machine 30, the Y direction extends upward in the vertical direction at an inclination toward the rotation direction side of the upper end portion 31a of the first rotor 31 of the first rotating electrical machine 30 with respect to the vertical direction, the other side in the Z direction (Z2 side) faces upward in the Z direction, and the lower end portion 120a of the bottom portion 120 of the insulating cover 12 is positioned so as to overlap with the first rotating electrical machine 30 when viewed from the vertical direction. Therefore, when the first rotating electric machine 30 is driven, a portion of the refrigerant scooped up from the refrigerant storage section 64 by the rotating first rotor 31 is received by the bottom 120 of the insulating cover 12 and flows along the bottom 120 between one side wall section 121a and the first insulating wall section 122a of the insulating cover 12, between the first insulating wall section 122a and the second insulating wall section 122b, and between the second insulating wall section 122b and the other side wall section 121b. The conductive unit 10 is positioned inside the drive unit case 60 so that the lower end 120a of the bottom 120 of the insulating cover 12 overlaps the first rotating electric machine 30 when viewed vertically, so that the refrigerant that flows along the bottom 120 between one side wall portion 121a of the insulating cover 12 and the first insulating wall portion 122a, between the first insulating wall portion 122a and the second insulating wall portion 122b, and between the second insulating wall portion 122b and the other side wall portion 121b flows down from the lower end 120a of the bottom 120 to the first rotating electric machine 30.

[0085] As a result, when the first rotating electric machine 30 is driven, the refrigerant scooped up from the refrigerant storage section 64 by the rotating first rotor 31 can be supplied to the first rotating electric machine 30, thereby improving the cooling performance of the first rotating electric machine 30.

[0086] Furthermore, the conductive unit 10 is arranged so that one side in the Z direction (Z1 side) faces the second rotating electric machine 40 and the bottom 120 of the insulating cover 12 faces the outer peripheral surface of the second rotating electric machine 40, and covers at least a portion of the outer peripheral surface of the second rotating electric machine 40 in the circumferential direction of the second rotating electric machine 40, thereby preventing the refrigerant scooped up from the refrigerant storage section 64 by the rotating first rotor 31 from splashing onto the second rotating electric machine 40.

[0087] Although one embodiment of the present invention has been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to such an embodiment. It is clear that a person skilled in the art can conceive of various modifications or alterations within the scope of the claims, and it is understood that these also naturally fall within the technical scope of the present invention. Furthermore, the components of the above embodiment may be combined in any manner without departing from the spirit of the invention.

[0088] For example, in this embodiment, the arrangement order in the Z direction of the first ends 111U, 111V, 111W of each busbar 110U, 110V, 110W of the U-phase conductive member 11U, the V-phase conductive member 11V, and the W-phase conductive member 11W and the arrangement order in the Z direction of the second ends 112U, 112V, 112W of each busbar 110U, 110V, 110W of the U-phase conductive member 11U, the V-phase conductive member 11V, and the W-phase conductive member 11W are both the same, that is, W phase, V phase, U phase, from one side of the Z direction (Z1 side) to the other side of the Z direction (Z2 side).

[0089] However, the arrangement order in the Z direction of the first ends 111U, 111V, 111W of each busbar 110U, 110V, 110W of the U-phase conductive member 11U, the V-phase conductive member 11V, and the W-phase conductive member 11W may be different from the arrangement order in the Z direction of the second ends 112U, 112V, 112W of each busbar 110U, 110V, 110W of the U-phase conductive member 11U, the V-phase conductive member 11V, and the W-phase conductive member 11W.

[0090] By doing this, each bus bar 110U, 110V, 110W of the U-phase conductive member 11U, the V-phase conductive member 11V, and the W-phase conductive member 11W is formed so as to be separated three-dimensionally from the insulating cover 12, thereby further improving the insulation between each bus bar 110U, 110V, 110W.

[0091] Furthermore, for example, in this embodiment, the conductive unit 10 is configured to exchange power with the first rotating electrical machine 30, but may exchange power with a device other than a rotating electrical machine.

[0092] This specification describes at least the following: In parentheses, components corresponding to those in the above-described embodiments are shown as examples, but the present invention is not limited to these.

[0093] (1) a plurality of conductive members (U-phase conductive member 11U, V-phase conductive member 11V); A conductive unit (conductive unit 10) including an insulating member (insulating cover 12), The plurality of conductive members include: a first conductive member (U-phase conductive member 11U) having a conductor (U-phase bus bar 110U) and a molded member (mold member 13) molded integrally with the conductor; a second conductive member (V-phase conductive member 11V) having a conductor (V-phase bus bar 110V) and not having the molding member, The insulating member separates the conductors of the plurality of conductive members from each other, and the conductive unit is supported only by the molding member.

[0094] According to (1), the insulating members that separate the conductors of the plurality of conductive members are supported only by the molded member, so that the insulating members can be fixed without providing fixing parts for fixing the insulating members on the insulating members, thereby achieving cost reduction and weight reduction while ensuring insulation between the plurality of conductive members.

[0095] (2) The conductive unit according to (1), The plurality of conductive members include: The power supply further includes a third conductive member (W-phase conductive member 11W) that has a conductor (W-phase bus bar 110W) and does not have the molded member, the first conductive member, the second conductive member, and the third conductive member are arranged side by side in a first direction (X direction), the second conductive member is disposed on one side (X1 side) of the first conductive member in the first direction, The third conductive member is disposed on the other side (X2 side) of the first conductive member in the first direction.

[0096] According to (2), of the three conductive members aligned in the first direction, the first conductive member located in the center has a molding member, and the insulating member is supported by the molding member of the first conductive member located in the center in the first direction. This allows the insulating member to be supported more stably than if it were supported by the conductive members located at the ends of the first conductive member, the second conductive member, and the second conductive member aligned in the first direction.

[0097] (3) The conductive unit according to (2), A conductive unit in which each of the conductors of the second conductive member and the third conductive member has a bending portion (bending portion 113V, 113W) that bends away from the first conductive member in the first direction in an area that overlaps with the molded member when viewed from the first direction.

[0098] According to (3), in the area that does not overlap with the molded member when viewed from the first direction, the distance in the first direction between the conductor of the second conductive member and the first conductive member, and the distance in the first direction between the conductor of the third conductive member and the first conductive member can be separated, thereby further improving the insulation between each conductor.

[0099] (4) The conductive unit according to (2) or (3), the first conductive member, the second conductive member, and the third conductive member all extend in a second direction (Y direction) perpendicular to the first direction, each first end (first end 111U, 111V, 111W) on one side (Y1 side) in the second direction of each of the conductors of the first conductive member, the second conductive member, and the third conductive member is exposed from the insulating member and is formed to be spaced apart from each other in a third direction (Z direction) perpendicular to both the first direction and the second direction, A conductive unit in which each second end (second end 112U, 112V, 112W) on the other side in the second direction of the first conductive member, the second conductive member, and the third conductive member is exposed from the insulating member and is formed so as to be positioned spaced apart from each other in the third direction.

[0100] According to (4), the first end and the second end of each conductor of the first conductive member, the second conductive member, and the third conductive member are formed so as to be spaced apart from each other in the third direction, thereby improving the insulation between the first end portions and the second end portions exposed from the insulating member.

[0101] (5) The conductive unit according to (4), A conductive unit in which the arrangement order of the first ends of each of the conductors of the first conductive member, the second conductive member, and the third conductive member in the third direction is different from the arrangement order of the second ends of each of the conductors of the first conductive member, the second conductive member, and the third conductive member in the third direction.

[0102] According to (5), each of the conductors of the first conductive member, the second conductive member, and the third conductive member is formed so as to be three-dimensionally separated from the insulating member, thereby further improving the insulation between each of the conductors.

[0103] (6) The conductive unit according to any one of (1) to (5), The conductive unit is a first rotating electric machine (first rotating electric machine 30) accommodated in a rotating electric machine case (drive device case 60) is electrically connected to the outside of the rotating electric machine case; a conductive unit disposed above the first rotating electric machine;

[0104] According to (6), the conductive unit is disposed above the first rotating electrical machine, and therefore the conductive unit can be prevented from being affected by heat generated as the first rotating electrical machine is driven.

[0105] (7) The conductive unit according to (6), The first rotating electric machine includes a first rotor (first rotor 31) and a first stator (first stator 32), a rotation shaft (first rotation shaft RC1) of the first rotating electric machine extends in a horizontal direction, a refrigerant reservoir (refrigerant reservoir 64) is formed in a lower portion of the rotating electric machine case, and the refrigerant is stored in the refrigerant so that at least a portion of the first rotating electric machine is immersed in the refrigerant; the first conductive member and the second conductive member are arranged side by side in a first direction (X direction) and extend in a second direction (Y direction) perpendicular to the first direction; The insulating member is a bottom portion (bottom portion 120) that covers at least a part of one side (Z1 side) of the first conductive member and the second conductive member in a third direction (Z direction) perpendicular to both the first direction and the second direction; a first insulating wall portion (first insulating wall portion 122a) that protrudes from the bottom portion toward the other side (Z2 side) in the third direction and extends in the second direction between the first conductive member and the second conductive member, the first direction extends parallel to the rotation axis of the first rotating electric machine, the second direction extends upward in a vertical direction, inclined toward the rotation direction of the upper end (upper end 31a) of the first rotor with respect to the vertical direction, the other side in the third direction faces an upward side in the third direction, The conductive unit is arranged so that the lower end (lower end 120a) of the bottom portion overlaps with the first rotating electric machine when viewed vertically.

[0106] According to (7), when the first rotating electric machine is operating, a portion of the refrigerant scooped up from the refrigerant reservoir by the rotating first rotor is received at the bottom of the insulating member and flows along the bottom of the insulating member. The conductive unit is positioned so that the lower end of the bottom of the insulating member overlaps with the first rotating electric machine when viewed vertically, and the refrigerant that has flowed along the bottom of the insulating member then flows down from the lower end of the bottom to the first rotating electric machine. As a result, when the first rotating electric machine is operating, the refrigerant scooped up from the refrigerant reservoir by the rotating first rotor can be supplied to the first rotating electric machine, improving the cooling performance of the first rotating electric machine.

[0107] (8) The conductive unit according to (7), The rotating electric machine case accommodates a second rotating electric machine (second rotating electric machine 40), The conductive unit is the one side of the third direction faces the second rotating electric machine, the bottom portion is disposed so as to face an outer peripheral surface of the second rotating electric machine, a conductive unit covering at least a portion of the outer circumferential surface of the second rotating electric machine in the circumferential direction of the second rotating electric machine;

[0108] According to (8), the refrigerant scooped up from the refrigerant reservoir by the rotating first rotor can be prevented from scattering toward the second rotating electrical machine. [Explanation of symbols]

[0109] 10 Conductive unit 11U U-phase conductive member (conductive member, first conductive member) 11V V-phase conductive member (conductive member, second conductive member) 11W W-phase conductive member (conductive member, third conductive member) 110U U-phase busbar (conductor) 110V V-phase busbar (conductor) 110W W-phase busbar (conductor) 111U 1st end 111V 1st end 111W 1st end 112U 2nd end 112V 2nd end 112W 2nd end 113V bending part 113W bending part 12 Insulating cover (insulating material) 120 bottom 120a Bottom end 122a First insulating wall portion 13 Molded parts 30 First Rotating Electric Machine 31 First Rotor 31a Upper end 32 First stator 40 Second rotating electric machine 60 Drive unit case (rotating electric machine case) 64 Refrigerant reservoir RC1 First rotation axis (rotation axis)

Claims

1. A plurality of conductive members; a conductive unit including an insulating member, The plurality of conductive members include: a first conductive member having a conductor and a molded member integrally molded with the conductor; a second conductive member having a conductor and not having the molding member; the insulating member separates the conductors of the plurality of conductive members from one another and is supported only by the molding member; The plurality of conductive members include: a third conductive member having a conductor but not having the molding member; the first conductive member, the second conductive member, and the third conductive member are arranged side by side in a first direction, the second conductive member is disposed on one side of the first conductive member in the first direction, the third conductive member is disposed on the other side of the first conductive member in the first direction, A conductive unit, wherein each of the conductors of the second conductive member and the third conductive member has a bent portion that bends in the first direction away from the first conductive member in an area that overlaps with the molded member when viewed from the first direction.

2. A plurality of conductive members; a conductive unit including an insulating member, The plurality of conductive members include: a first conductive member having a conductor and a molded member integrally molded with the conductor; a second conductive member having a conductor and not having the molding member; the insulating member separates the conductors of the plurality of conductive members from one another and is supported only by the molding member; The plurality of conductive members include: a third conductive member having a conductor but not having the molding member; the first conductive member, the second conductive member, and the third conductive member are arranged side by side in a first direction, the second conductive member is disposed on one side of the first conductive member in the first direction, the third conductive member is disposed on the other side of the first conductive member in the first direction, the first conductive member, the second conductive member, and the third conductive member all extend in a second direction perpendicular to the first direction; each first end portion of each of the conductors of the first conductive member, the second conductive member, and the third conductive member on one side in the second direction is exposed from the insulating member and is formed to be spaced apart from each other in a third direction perpendicular to both the first direction and the second direction; A conductive unit, wherein second ends of the first conductive member, the second conductive member, and the third conductive member on the other side in the second direction are exposed from the insulating member and are formed to be spaced apart from each other in the third direction.

3. The conductive unit according to claim 2, A conductive unit in which the arrangement order of the first ends of each of the conductors of the first conductive member, the second conductive member, and the third conductive member in the third direction is different from the arrangement order of the second ends of each of the conductors of the first conductive member, the second conductive member, and the third conductive member in the third direction.

4. The conductive unit according to claim 1 , The conductive unit is a first rotating electric machine housed in a rotating electric machine case is electrically connected to the outside of the rotating electric machine case; a conductive unit disposed above the first rotating electric machine;

5. A plurality of conductive members; a conductive unit including an insulating member, The plurality of conductive members include: a first conductive member having a conductor and a molded member integrally molded with the conductor; a second conductive member having a conductor and not having the molding member; the insulating member separates the conductors of the plurality of conductive members from one another and is supported only by the molding member; The conductive unit is a first rotating electric machine housed in a rotating electric machine case is electrically connected to the outside of the rotating electric machine case; disposed above the first rotating electric machine, the first rotating electric machine includes a first rotor and a first stator; a rotation shaft of the first rotating electric machine extending in a horizontal direction, a refrigerant reservoir portion is formed in a lower portion of the rotating electric machine case, and the refrigerant is stored in the refrigerant so that at least a portion of the first rotating electric machine is immersed in the refrigerant; the first conductive member and the second conductive member are arranged side by side in a first direction and extend in a second direction perpendicular to the first direction; The insulating member is a bottom portion covering at least a portion of one side of the first conductive member and the second conductive member in a third direction perpendicular to both the first direction and the second direction; a first insulating wall portion that protrudes from the bottom portion to the other side in the third direction and extends in the second direction between the first conductive member and the second conductive member, the first direction extends parallel to the rotation axis of the first rotating electric machine, the second direction extends upward in a vertical direction and is inclined toward the rotation direction of the upper end of the first rotor with respect to the vertical direction, the other side in the third direction faces an upward side in the third direction, The conductive unit is arranged so that a lower end of the bottom portion overlaps with the first rotating electric machine when viewed in the vertical direction.

6. The conductive unit according to claim 5 , The rotating electric machine case accommodates a second rotating electric machine, The conductive unit is the one side of the third direction faces the second rotating electric machine, the bottom portion is disposed so as to face an outer peripheral surface of the second rotating electric machine, a conductive unit covering at least a portion of the outer circumferential surface of the second rotating electric machine in a circumferential direction of the second rotating electric machine;

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