JP7305002B1 - Rotating electric machine with integrated controller - Google Patents

Abstract

An object of the present invention is to obtain a controller-integrated rotating electric machine that suppresses electric corrosion that can occur in adjacent connection terminal portions having a potential difference. A rotating electric machine main body section having a rotor, a stator core with stator windings wound thereon, a bracket covering the outside of the stator core, and a cooling fan fixed to the rotor; a power module; and a control circuit section for controlling the power module. Two specific connection terminal portions which are connected to the ground member, are spaced apart in the circumferential direction, and have a potential difference are arranged with a shift in one or both of the axial position and the radial position. [Selection drawing] Fig. 10

Description

The present application relates to a controller-integrated dynamoelectric machine.

A controller-integrated rotating electrical machine in which a rotating electrical machine body and a control device having a power module are connected is used in a vehicle. A structure of a controller-integrated rotating electrical machine having a configuration in which a rotating electrical machine main body and a control device can be easily separated has been disclosed (see, for example, Patent Document 1). In the disclosed configuration, the controller-integrated rotating electrical machine includes a connecting board having an insert-molded board terminal that electrically connects a rotating electrical machine main body and a connection terminal portion of a terminal connected to a power module. Prepare. The board terminal and the connection terminal section are connected by fastening with a screw.

JP 2014-110712 A

In Patent Literature 1, the rotary electric machine main body and the control device are integrated by fastening with screws, so that the rotary electric machine main body and the control device can be easily separated. However, the connection terminal portion, which is a live wire portion fastened with screws, is exposed, and the connection terminal portions with a potential difference are arranged side by side. Since water tends to accumulate around the connection terminals, and mud and dust tend to accumulate around the connection terminals, there is a problem that electrical corrosion occurs in the connection terminals and disconnection of the connection terminals occurs.

SUMMARY OF THE INVENTION The present invention has been made to solve the problems described above, and an object of the present invention is to obtain a controller-integrated rotating electric machine that suppresses electrical corrosion that may occur in adjacent connection terminal portions having a potential difference.

A controller-integrated dynamoelectric machine disclosed in the present application includes a rotating shaft, a rotor that rotates integrally with the rotating shaft, and a stator core disposed radially outside the rotor and having stator windings wound thereon. a rotary electric machine main body provided with a bracket to which the stator is fixed so as to cover the outside of the rotor, the stator iron core and rotatably support the rotating shaft, and a cooling fan fixed to the rotor; A power module that supplies alternating current power and a control circuit unit that controls the power module are provided, and the controller includes a control device arranged outside the bracket and a plurality of bus bars connected to the stator windings. a plurality of connection terminal portions connected to the power module, each of the plurality of connection terminal portions being connected to a plurality of bus bars or ground members, arranged at intervals in the circumferential direction, and having a potential difference; One or both of the axial position and the radial position of the two specific connection terminal portions are displaced , the control device has a connection terminal connecting the power module and the connection terminal portion, and the connection terminal has , the portion between the power module side and the connection terminal portion side is bent in an L shape .

According to the controller-integrated dynamoelectric machine disclosed in the present application, each of the plurality of connection terminal portions is connected to the plurality of bus bars or ground members, and is arranged at intervals in the circumferential direction to have a potential difference of 2 One or both of the axial position and the radial position of the two specific connection terminal parts are shifted, so that the circumferential direction between the two specific connection terminal parts and the axial direction or the radial direction Since a gap is provided and a space is provided in the portion where the step is formed, it is difficult for water to accumulate between the two specific connection terminal portions, and it is difficult for mud and dust to accumulate between the two specific connection terminals. It is possible to suppress electric corrosion that may occur in the part.

1 is a cross-sectional view parallel to an axial direction showing an outline of a controller-integrated rotating electric machine according to Embodiment 1; FIG. 1 is a cross-sectional view showing a main part of a controller-integrated dynamoelectric machine according to Embodiment 1; FIG. 1 is a cross-sectional view showing a part of a controller-integrated dynamoelectric machine according to Embodiment 1; FIG. 2 is a front view showing the controller side of the controller-integrated dynamoelectric machine according to the first embodiment; FIG. FIG. 5 is a cross-sectional view of the control device taken along line AA in FIG. 4; FIG. 2 is a front view showing the rear side of the rotating electric machine body of the controller-integrated rotating electric machine according to the first embodiment; FIG. 7 is a cross-sectional view of the main body of the rotary electric machine taken along the line BB in FIG. 6; FIG. 7 is a cross-sectional view of the main body of the rotary electric machine taken along line CC of FIG. 6; 1 is a front view showing a main part of a controller-integrated rotating electric machine according to Embodiment 1; FIG. 1 is a side view showing a main part of the controller-integrated dynamoelectric machine according to Embodiment 1; FIG. FIG. 2 is a diagram of the controller-integrated dynamoelectric machine according to Embodiment 1 attached to a vehicle; FIG. 12 is a diagram schematically showing a main part of the controller-integrated dynamoelectric machine in FIG. 11; FIG. 2 is a diagram of the controller-integrated dynamoelectric machine according to Embodiment 1 attached to a vehicle; FIG. 14 is a diagram schematically showing a main part of the controller-integrated dynamoelectric machine in FIG. 13; FIG. 10 is a cross-sectional view showing a main part of a controller-integrated dynamoelectric machine according to Embodiment 2; FIG. 11 is a side view showing a main part of a controller-integrated dynamoelectric machine according to Embodiment 3; FIG. 10 is a diagram showing a main part of a controller-integrated rotating electric machine according to Embodiment 4; FIG. 11 is a diagram showing a main part of a controller-integrated rotating electric machine according to Embodiment 5; FIG. 13 is a diagram showing a main part of a controller-integrated rotating electric machine according to Embodiment 6; FIG. 11 is a diagram showing a main part of a controller-integrated rotating electric machine according to Embodiment 7; FIG. 12 is a diagram showing a main part of a controller-integrated rotating electrical machine according to an eighth embodiment; FIG. 20 is a diagram showing a main part of a controller-integrated dynamoelectric machine according to a ninth embodiment; FIG. 20 is a diagram showing a main part of a controller-integrated dynamoelectric machine according to Embodiment 10;

A controller-integrated rotating electrical machine according to an embodiment of the present application will be described below with reference to the drawings. In each figure, the same or corresponding members and parts are denoted by the same reference numerals.

Embodiment 1.
FIG. 1 is a cross-sectional view parallel to the axial direction showing an outline of a controller-integrated rotating electrical machine for a vehicle (hereinafter referred to as rotating electrical machine 1) according to Embodiment 1, and FIG. FIG. 3 is a cross-sectional view showing an enlarged portion surrounded by an ellipse in FIG. 1, and FIG. 3 is a cross-sectional view showing a part of the rotating electrical machine 1 in a state where the control device 30 is not attached to the rotating electrical machine main body 40. 4 is a front view showing the side of the control device 30 of the rotary electric machine 1, with the cover 15 covering the front of the control device 30 removed, and FIG. 6 is a front view showing the rear side of the rotary electric machine main body 40 of the rotary electric machine 1, and FIG. 7 is a cross section of the rotary electric machine main body 40 taken along the BB cross section of FIG. 8 is a cross-sectional view of the rotary electric machine main body 40 cut along the CC cross-section of FIG. 6; FIG. FIG. 10 is a side view showing the essential parts of the rotating electrical machine 1, showing a side view of the connection terminal section shown in FIG. 9, FIG. FIG. 13 is a diagram showing an outline of a connection terminal portion that is a main part of the electric machine 1, FIG. 13 is a diagram showing the rotating electric machine 1 attached to a vehicle, and FIG. 14 is a diagram showing an outline of a connection terminal part that is a main part of the rotating electric machine in FIG. is. The rotary electric machine 1 includes a rotary electric machine main body 40, a control device 30, and a connecting board 18. The rotary electric machine main body 40 and the control device 30 are electrically connected via a board terminal 19 included in the connecting board 18. It is a controller-integrated rotary electric machine for a connected vehicle. The details of each part will be described below.

<Rotating electric machine 1>
The rotary electric machine body 40 includes a rotating shaft 11, a rotor 2 that rotates integrally with the rotating shaft 11, and a stator iron core 3b disposed radially outside the rotor 2 and having a stator winding 3a wound thereon. The cooling fans 20 and 21 fixed to the rotor 2 and a bracket to which the stator 3 is fixed so as to cover the outside of the stator 3 and the stator iron core 3b and to support the rotary shaft 11 so as to be rotatable. The rotary electric machine 1 shown in the first embodiment is an air-cooled open type rotary electric machine.

The bracket includes a front bracket 4 that holds one end side of the rotating shaft 11 through a bearing 7 and covers the front side of the rotor 2 , and a bearing 8 that holds the other end side of the rotating shaft 11 and holds the rotor 2 . and a rear bracket 5 covering the rear side of the. Here, the front side means the pulley 12 side, and the rear side means the opposite side. Further, the rear side is defined as one side in the axial direction, and the front side is defined as the other side in the axial direction. The rotating shaft 11 is rotatably supported by bearings 7 and 8 . The stator 3 is clamped and fixed between the front bracket 4 and the rear bracket 5 . The stator winding 3a wound around the stator core 3b is a three-phase stator winding 3a. One end of the rotary shaft 11 protrudes from the front bracket 4, and a pulley 12 is provided at the tip. The pulley 12 is connected to an internal combustion engine (not shown) via a belt (not shown) to transmit and receive torque bi-directionally with the internal combustion engine.

The rotor 2 includes a field core 2b and field windings 2a wound around the field core 2b. The cooling fans 20 and 21 are fixed to both end faces of the field core 2b and generate cooling air to cool the inside of the main body 40 of the rotary electric machine. The other end of the rotating shaft 11 protrudes from the rear bracket 5, and a slip ring 13 is provided at the tip. A field current is supplied to the field winding 2 a through the slip ring 13 . The rotary electric machine 1 includes a brush holder 16a having a brush 16, and the brush 16 slides on the slip ring 13, so that the field winding 2a is energized.

The rotary electric machine body 40 includes a rotation sensor 6 that detects the rotation state of the rotor 2 via the rotation shaft 11, as shown in FIG. The rotation sensor 6 is arranged coaxially with the rotating shaft 11 outside the rear bracket 5 between the slip ring 13 and the bearing 8 , and detects the position of the rotating shaft 11 , that is, the magnetic poles of the rotor 2 . The rotation sensor 6, as shown in FIG. 2, comprises a sensor rotor 6b and a sensor stator 6a surrounding the sensor rotor 6b. A sensor rotor 6b made of an iron core is fixed to a rotating shaft 11 inside the sensor stator 6a. The rear bracket 5 is formed with a protruding portion 5a that protrudes to one side in the axial direction. The outer diameter surface of the core portion 6a1 of the sensor stator 6a is fitted to the inner diameter surface of the projecting portion 5a. The sensor stator 6a is attached to the heat sink 31 with a resin portion 6a2. A signal wiring (not shown) of the rotation sensor 6 is connected to a control circuit section 17 which will be described later.

The control device 30 has, as shown in FIG. The control device 30 is arranged on one axial side outside the bracket. The arrangement of the control device 30 is not limited to one axial side of the bracket. The control device 30 further has a field module 10 for applying a DC current to the field winding 2a, and the power module 9 and the field module 10 form a DC/AC power mutual conversion circuit section. The control circuit section 17 also controls the field module 10 .

In addition, the control device 30 includes a case 14 that surrounds the power module 9, the field module 10, and the control circuit unit 17 from the outside in the radial direction, and a heat sink in which the power module 9 and the field module 10 are mounted and a heat radiation fin 31a is provided. 31, terminals 14a and ground terminals 14b, which are a plurality of connection terminal portions connected to the terminals 9a of the power module 9, the power module 9, the field module 10, the control circuit portion 17, and the terminals 14a and ground terminals 14b. It has a cover 15 that surrounds it from the radially outer side and axially from one side. The control device 30 has a connection terminal 26 connecting the power module 9 and the terminal 14a, and a connection terminal 26 connecting the power module 9 and the ground terminal 14b. As shown in FIG. 5, the connection terminal 26 and the terminal 9a of the power module 9 are connected by welding at the connection portion 14a1. The heat sink 31 is thermally connected to the power module 9 and the field module 10 , and the heat sink 31 cools the power module 9 and the field module 10 .

The power module 9 and the field module 10 have switching elements and their peripheral circuits. The power module 9 and the field module 10 have switching elements and the like mounted on lead frames for wiring, and are integrated by resin molding by insert molding. The cover 15 is made of polyamide synthetic resin, for example, and protects the inside of the control device 30 . As shown in FIG. 1, the cover 15 is locked to the connecting board 18 by snap-fitting at the periphery. The inside of the case 14 is sealed with a resin material 25 after each module or the like is mounted. Note that the resin material 25 is omitted in FIG.

The case 14 is made of insulating resin such as polyphenylene sulfide. The connection terminal 26, the terminal 14a and the ground terminal 14b are insert-molded into the case 14 as shown in FIG. Portions of the terminal 14 a and the ground terminal 14 b are provided so as to protrude radially outward from the case 14 . Each of the plurality of connection terminal portions is connected to a plurality of board terminals 19, which are a plurality of bus bars, or a ground member. Here, the terminal 14a is connected to the board terminal 19, and the ground terminal 14b is connected to the heat sink 31, which is a ground member. The details of the arrangement and configuration of these connection terminal portions will be described later. The outer shape of the case 14 is substantially rectangular in order to simplify the mounting of each module and the configuration of the peripheral circuits. Further, the outer shape of the heat sink 31 is also provided in a shape generally matching the outer shape of the case 14 .

The connecting board 18 is a board in which a board terminal 19 for connecting the rotary electric machine body 40 and the control device 30 is insert-molded. A plurality of board terminals 19 are connected to the stator winding 3a. In this embodiment, the connecting board 18 is formed in a half-ring shape, as shown in FIG. The connecting board 18 is provided between the control device 30 and the rear bracket 5 and fixed to the rear bracket 5 with a plurality of screws 22 . Through holes 18a are formed in the connecting board 18 at six locations along the circumferential direction. As shown in FIG. 7, the end of the lead wire 3c, which is the end of the stator winding 3a extending from the stator 3 in one axial direction, passes through the through hole 18a. An end portion of the lead wire 3c and the board terminal 19 are electrically connected by welding at a connection portion 19a.

<Procedure for assembling the rotary electric machine 1>
A procedure for assembling the rotary electric machine 1 will be described. A connecting board 18 is fixed to the rear bracket 5 with a screw 22 . When the connecting board 18 is attached to the rear bracket 5 , the end of the lead wire 3 c extending from the stator 3 in one axial direction passes through the through hole 18 a of the connecting board 18 . The end of the lead wire 3c and the board terminal 19 are connected by welding at the connecting portion 19a.

After the sensor stator 6a is attached to the heat sink 31, the controller 30 is fixed to the rear bracket 5 from the rear side of the main body 40 of the rotary electric machine with screws, as shown in FIG. The control device 30 has a central space through which the rotating shaft 11 passes.

Terminal 14a of control device 30 and board terminal 19 of connecting board 18 are fixed by screw 23 at connecting end 19b shown in FIG. The ground terminal 14 b of the control device 30 and the heat sink 31 are fixed with screws 24 . These fixings electrically connect the respective parts. The direction of the fixing shaft by the screw is the direction parallel to the axial direction, but the direction of the fixing shaft is not limited to the direction parallel to the axial direction. Moreover, these connections are not limited to screws, and may be electrically connected by welding or the like.

Next, the connection terminal 26 and the terminal 9a of the power module 9 are connected by welding or the like. The power module 9 and the field module 10 are connected to the control circuit section 17 by welding or the like. Thereafter, a melted resin material 25 is injected into the case 14 and hardened to seal the inside of the case 14 . In order to protect and insulate the inside of the control device 30 and the brushes 16 and the like from the outside, the peripheral edge of the cover 15 is snap-fitted to the connecting board 18 so as to follow the outer peripheral shape of the control device 30, and the cover is attached. 15 is mounted on the controller 30 .

<Operation of Rotating Electric Machine 1>
The operation of the rotating electrical machine 1 will be described.
When the engine is started, DC power is sent from a battery (not shown) to the power module 9 of the control device 30, where the DC power is converted into three-phase AC power. Three-phase AC power is supplied to the stator windings 3a. On the other hand, the field current controlled by the field module 10 is supplied to the field winding 2a via the brushes 16, the slip rings 13, and the connecting wire 13a. A rotating magnetic field is applied to the field winding 2a by the field current, and the rotor 2 is rotationally driven. The rotational torque of this rotor 2 is transmitted to the internal combustion engine via the rotating shaft 11, pulley 12 and belt, and the engine is ignited and started.

On the other hand, when the internal combustion engine is started, the rotational torque of the engine is transmitted to the rotary electric machine body 40 via the crank pulley, belt, and pulley 12 . Rotor 2 rotates due to the transmission of rotational torque, and a three-phase AC voltage is induced in stator windings 3a. This three-phase AC voltage is sent to the power module 9, and the power module 9 rectifies the three-phase AC voltage into DC power. DC power is supplied to batteries and electrical loads. A signal output from the rotation sensor 6 is sent to the control circuit section 17 via signal wiring led out from the sensor stator 6a. A signal output from the rotation sensor 6 is used to detect the rotational position of the rotor 2, and is used as control information during the power generation operation of the rotating electrical machine 1 and the starting operation of the engine.

<Arrangement of Terminal 14a and Ground Terminal 14b>
The arrangement of the connection terminal portion, which is the main part of the present application, will be described. The two specific connection terminal portions which are spaced apart in the circumferential direction and have a potential difference are arranged with a shift in one or both of the axial position and the radial position. In this embodiment, as described above, the terminal 14a and the ground terminal 14b are connection terminal portions, and the terminal 14a and the ground terminal 14b on the lower side of FIG. 10 are two specific connection terminal portions having a potential difference. As shown in FIG. 9, the terminals 14a and the ground terminals 14b are spaced apart in the circumferential direction. As shown in FIG. 10, the lower terminal 14a and the ground terminal 14b are displaced from each other in the axial direction. The configuration in which the terminals 14a and the ground terminals 14b are displaced only in the axial direction is not restrictive, and a configuration in which both the axial and radial positions are displaced may be employed. Alternatively, the terminal 14a and the ground terminal 14b may be arranged with only their radial positions shifted, instead of being arranged with their axial positions shifted. Further, in this embodiment, in FIG. 10, the terminals 14a on the upper side may be displaced in the axial direction similarly to the terminals 14a on the lower side.

By configuring in this manner, a space 32 is provided in the portion where the stepped portion is provided in the circumferential and axial directions between the adjacent terminal 14a and the ground terminal 14b. Since the space 32 is provided, it is difficult for water to accumulate between the terminal 14a and the ground terminal 14b, and it is difficult for mud and dust to accumulate between the terminal 14a and the ground terminal 14b. can be suppressed. Since electric corrosion that may occur in the terminal 14a and the ground terminal 14b is suppressed, disconnection of the terminal 14a and the ground terminal 14b due to electric corrosion can be avoided.

The effect of suppressing electric corrosion will be further described with an example of the rotating electric machine 1 mounted on the vehicle 100 . The upward direction with respect to the road surface is defined as the top direction. In FIG. 11 , rotating electrical machine 1 is attached to vehicle 100 so that the top direction of vehicle 100 and axial direction 33 of rotating electrical machine 1 are parallel. FIG. 12 is a schematic diagram showing the arrangement of the terminals 14a and ground terminals 14b in FIG. When the rotating electric machine 1 is arranged in this way, a space 34 including a portion opening downward is formed in the portion where the step is formed.

In FIG. 13 , rotating electrical machine 1 is attached to vehicle 100 so that the lateral direction of vehicle 100 parallel to the road surface and axial direction 33 of rotating electrical machine 1 are parallel. FIG. 14 is a schematic diagram showing the arrangement of the terminals 14a and ground terminals 14b in FIG. When the rotating electric machine 1 is arranged in this way, a space 35 including a portion opening downward is formed in the stepped portion. A similar space 35 is also formed when rotating electrical machine 1 is attached to vehicle 100 so that the longitudinal direction of vehicle 100 parallel to the road surface and axial direction 33 of rotating electrical machine 1 are parallel.

In this way, regardless of how the rotary electric machine 1 is arranged with respect to the vehicle 100 in the axial direction 33, it is possible to form the spaces 34 and 35 including the portions that are open in the ground direction in the portions where the steps are formed. can. Since the spaces 34 and 35 are spaces including portions that are open to the ground, water is less likely to accumulate in the spaces 34 and 35, and dirt and dust are less likely to accumulate. It is possible to suppress electric corrosion that may occur in In addition, it is possible to increase options for arranging the rotary electric machine 1 on the vehicle 100 .

Although the example of the case where the axial direction 33 of the rotating electrical machine 1 is parallel to the vertical direction or the lateral direction of the vehicle 100 is shown, the axial direction 33 of the rotating electrical machine 1 may be inclined with respect to the vertical direction or the lateral direction. has the same effect. Therefore, it is possible to mount the rotating electric machine 1 at an angle when it is mounted on a vehicle, and a space is formed even if the rotating electric machine 1 is directed in any direction of front, back, left, right, top and bottom in a climbing state such as a slope. Since the space is formed, water is less likely to accumulate in the space, and dirt and dust are less likely to accumulate, so it is possible to suppress electrical corrosion that may occur between the adjacent terminal 14a and ground terminal 14b, which have a potential difference.

As described above, in the rotating electrical machine 1 according to Embodiment 1, the terminal 14a and the ground terminal 14b, which are two specific connection terminal portions having a potential difference, are arranged at intervals in the circumferential direction, Since the terminal 14a and the ground terminal 14b are displaced in one or both of the position and the radial position, a space 32 is formed in the portion where the gap is formed in the circumferential and axial directions between the terminal 14a and the ground terminal 14b. Since it is provided, it is difficult for water to accumulate between the terminal 14a and the ground terminal 14b, and it is difficult for mud and dust to accumulate between the terminal 14a and the ground terminal 14b. can. In addition, electric corrosion that can occur in the terminal 14a and the ground terminal 14b is suppressed, so disconnection of the terminal 14a and the ground terminal 14b due to electric corrosion can be avoided.

When the rotating electric machine 1 is mounted on the vehicle 100, regardless of whether the axial direction 33 of the rotating electric machine 1 is in the front-rear direction, the left-right direction, or the top-bottom direction of the vehicle 100, a space including a portion opened in the ground direction is formed. Therefore, the number of options for mounting the rotating electric machine 1 on the vehicle 100 is increased, and the accumulation of mud, dust, and the like in the space can be suppressed.

Embodiment 2.
A rotating electric machine 1 according to Embodiment 2 will be described. FIG. 15 is a cross-sectional view showing a main part of the rotary electric machine 1 according to Embodiment 2, and is a cross-sectional view of the control device 30 cut at the same cross-sectional position as in FIG. A rotary electric machine 1 according to the second embodiment has a configuration in which the shape of a connection terminal 26 is different from that of the first embodiment.

The control device 30 has a connection terminal 26 connecting the power module 9 and the terminal 14a. A portion of the connection terminal 26 between the power module 9 side and the terminal 14a side is bent in an L shape. ing. The L-shaped bent portion is the L-bent portion 14c. A stepped portion is formed in the connection terminal 26 by providing the L-bent portion 14c.

With this configuration, the load applied to the connection terminal 26 can be absorbed by the L-bent portion 14c. Therefore, in a high-vibration state such as when the engine is started, the vibration transmitted to the connection terminal 26 can be absorbed by the L-bent portion 14c. Since the vibration transmitted to the connection terminal 26 is absorbed, the stress applied to the connection terminal 26 can be reduced. Since the stress applied to the connection terminal 26 is reduced, damage to the connection terminal 26 is suppressed, so that the rotary electric machine 1 having highly reliable electrical connection can be obtained.

Embodiment 3.
A rotating electric machine 1 according to Embodiment 3 will be described. FIG. 16 is a side view showing a main part of the rotary electric machine 1 according to Embodiment 3, and is a side view of the control device 30 at the same position as in FIG. A rotary electric machine 1 according to the third embodiment has a configuration different from that of the first embodiment in the arrangement of terminals 14a.

The three specific connection terminal portions arranged in the circumferential direction at intervals are applied to the two connection terminal portions on both sides in the circumferential direction with respect to the potential of the central connection terminal portion in the circumferential direction. are different in potential, and one or both of the axial position and the radial position of each of the two connecting terminal portions on both sides in the circumferential direction is displaced with respect to the central connecting terminal portion in the circumferential direction. there is In this embodiment, the three specific connection terminal portions are two terminals 14a and one ground terminal 14b.

With this configuration, intervals are provided in the circumferential direction and the axial direction between the terminals 14a on both sides adjacent to the central ground terminal 14b and the ground terminals 14b, respectively, and a space is provided in the stepped portion. 32 are provided. Since the spaces 32 are provided on both sides, it is difficult for water to accumulate between the ground terminal 14b and the terminals 14a on both sides, and dirt and dust are also unlikely to accumulate. Possible galvanic corrosion can be suppressed. Since electric corrosion that may occur in the terminal 14a and the ground terminal 14b is suppressed, disconnection of the terminal 14a and the ground terminal 14b due to electric corrosion can be avoided.

The three specific connection terminal portions are not limited to two terminals 14a and one ground terminal 14b. It may be a terminal that connects between other parts, and by arranging both terminals with a deviation, the rotary electric machine 1 that is less likely to collect water, less likely to accumulate dirt, dust, etc., is suppressed in electrolytic corrosion. Obtainable. In FIG. 16, the ground terminal 14b is arranged on the left side, and the terminals 14a on both sides are shifted to the right side, but the arrangement is not limited to this, and the arrangement may be shifted in the opposite direction.

In this embodiment, the central connection terminal portion in the circumferential direction is connected to the ground, and the two connection terminal portions on both sides in the circumferential direction are connected to board terminals 19, which are bus bars. By configuring in this way, the number of connection terminal portions connected to the ground can be reduced, so the productivity of the rotary electric machine 1 can be improved.

One or both of the axial position and the radial position of the two connecting terminal portions on both sides in the circumferential direction are shifted in the same direction. In the present embodiment, the terminals 14a, which are two connection terminal portions on both sides, are arranged to be shifted in the same axial direction. With this configuration, the two connection terminal portions are connected to the board terminals 19 at the same height, so that the productivity of the rotating electric machine 1 can be improved. Moreover, the rotary electric machine 1 can be miniaturized.

Embodiment 4.
A rotating electric machine 1 according to Embodiment 4 will be described. 17A and 17B are diagrams showing a main part of a rotating electrical machine 1 according to Embodiment 4. FIG. It is a side view of the connection terminal part shown to a). A rotary electric machine 1 according to the fourth embodiment has a different arrangement of connection terminal portions from that of the first embodiment.

In this embodiment, the terminal 14a and the ground terminal 14b are connection terminal portions, and the terminal 14a and the ground terminal 14b are two specific connection terminal portions having a potential difference. As shown in FIG. 17(a), the terminals 14a and the ground terminals 14b are arranged with a gap in the circumferential direction and are arranged with the radial position shifted. As shown in 17(b), the terminal 14a and the ground terminal 14b are displaced from each other in the axial direction. The terminal 14 a and the ground terminal 14 b are fixed with screws, and the direction of the fixing axis of the screws is perpendicular to the axial direction 33 .

Even with such a configuration in which both the axial position and the radial position of the terminal 14a and the ground terminal 14b are shifted, a gap is provided between the adjacent terminal 14a and the ground terminal 14b. A space 32 is provided in the portion where the step is formed. Since the space 32 is provided, it is difficult for water to accumulate between the terminal 14a and the ground terminal 14b, and it is difficult for mud and dust to accumulate between the terminal 14a and the ground terminal 14b. can be suppressed.

Embodiment 5.
A rotating electric machine 1 according to Embodiment 5 will be described. FIG. 18 is a diagram showing a main portion of the rotary electric machine 1 according to Embodiment 5, and is a front view of the connection terminal portion viewed from the one axial side with the portion of the cover 15 on the one axial side removed. The rotary electric machine 1 according to the fifth embodiment has a configuration including a case insulating wall 36 in addition to the configuration of the first embodiment.

The case 14 has a case insulating wall 36 that separates two specific connection terminal portions adjacent to each other in the circumferential direction and protrudes from the case main body. In this embodiment, the terminal 14a and the ground terminal 14b are connection terminal portions, and the terminal 14a and the ground terminal 14b are two specific connection terminal portions having a potential difference. The case insulating wall 36 is provided between the lower terminal 14a and the ground terminal 14b and between the upper terminal 14a and the ground terminal 14b in FIG. The case insulating wall 36 is made of resin and integrally formed with the case 14 . The size of the case insulating wall 36 in the direction perpendicular to the plane of FIG. 18 is the height that separates the terminal 14a and the screw attached to the terminal 14a from the adjacent ground terminal 14b and the screw attached to the ground terminal 14b.

By providing the case insulating wall 36 in this manner, the creepage distance between the terminal 14a and the ground terminal 14b can be extended. Since the creepage distance between the terminal 14a and the ground terminal 14b is extended, the rotating electrical machine 1 with high electrical reliability can be obtained. The case insulating wall 36 is plate-shaped, and even if water enters around the terminal 14a and the ground terminal 14b, the water will escape along the case insulating wall 36. Water does not stay around the ground terminal 14b.

Embodiment 6.
A rotating electric machine 1 according to Embodiment 6 will be described. FIG. 19 is a diagram showing a main portion of the rotary electric machine 1 according to Embodiment 6, and is a front view of the connection terminal portion viewed from the one axial side with the portion of the cover 15 on the one axial side removed. A rotary electric machine 1 according to the sixth embodiment has a configuration including a cover insulating wall 37 in addition to the configuration of the first embodiment.

The cover 15 has a cover insulating wall 37 that partitions between two specific connection terminal portions that are adjacent to each other in the circumferential direction and protrudes from the cover body portion. In this embodiment, the terminal 14a and the ground terminal 14b are connection terminal portions, and the terminal 14a and the ground terminal 14b are two specific connection terminal portions having a potential difference. The cover insulating wall 37 is provided between the lower terminal 14a and the ground terminal 14b and between the upper terminal 14a and the ground terminal 14b in FIG. The cover insulating wall 37 is made of resin and integrally formed with the cover 15 . The vertical size of the cover insulating wall 37 in FIG. 19 is the height that separates the terminal 14a and the screw attached to the terminal 14a from the adjacent ground terminal 14b and the screw attached to the ground terminal 14b.

By providing the cover insulating wall 37 in this manner, the creepage distance between the terminal 14a and the ground terminal 14b can be extended. Since the creepage distance between the terminal 14a and the ground terminal 14b is extended, the rotating electrical machine 1 with high electrical reliability can be obtained. The insulating cover wall 37 is plate-shaped, and even if water enters around the terminal 14a and the ground terminal 14b, the water will escape along the insulating cover wall 37. Water does not stay around the ground terminal 14b.

Embodiment 7.
A rotating electric machine 1 according to Embodiment 7 will be described. FIG. 20 is a diagram showing a main part of the rotary electric machine 1 according to Embodiment 7, and is a perspective view showing the periphery of the connection terminal part with the cover 15 on one side in the axial direction removed. A rotary electric machine 1 according to the seventh embodiment has a configuration including a case insulating wall 36 and a cover insulating wall 37 in addition to the configuration of the first embodiment.

The case 14 has a case insulating wall 36 that separates two specific connection terminal portions adjacent to each other in the circumferential direction and protrudes from the case main body. The cover 15 has a cover insulating wall 37 that partitions between two specific connection terminal portions that are adjacent to each other in the circumferential direction and protrudes from the cover body portion. In this embodiment, the terminal 14a and the ground terminal 14b are connection terminal portions, and the terminal 14a and the ground terminal 14b are two specific connection terminal portions having a potential difference. Although not shown because it is hidden by the cover 15, the terminal 14a is connected to the board terminal by a screw 23 shown at the lower right. The case insulating wall 36 and the cover insulating wall 37 are arranged with a gap D therebetween in the circumferential direction. The case insulating wall 36 and the cover insulating wall 37 are arranged so as to intersect when viewed in the direction of the arrow Z, and the case insulating wall 36 and the cover insulating wall 37 form a labyrinth structure 38 (the part surrounded by the broken line). is formed.

By providing the case insulating wall 36 and the cover insulating wall 37 in this manner, the creepage distance between the terminal 14a and the ground terminal 14b can be further extended. Since the creepage distance between the terminal 14a and the ground terminal 14b is further extended, the rotating electric machine 1 with high electrical reliability can be obtained.

Embodiment 8.
A rotating electrical machine 1 according to Embodiment 8 will be described. 21A and 21B are diagrams showing a main part of a rotating electrical machine 1 according to Embodiment 8. FIG. 21(b) is a side view of the connection terminal portion with the cover 15 cut at the DD cross-sectional position of FIG. 21(a). The rotary electric machine 1 according to the eighth embodiment has a configuration in which the shape of the cover 15 is different from that of the first embodiment.

The portion of the cover 15 that surrounds two specific connection terminal portions that are adjacent to each other in the circumferential direction corresponds to the arrangement of the specific connection terminal portions that are shifted in one or both of the axial position and the radial position. formed along the In this embodiment, the ground terminal 14b and the terminal 14a in FIG. 21 are connection terminal portions, and the ground terminal 14b and the lower terminal 14a are two specific connection terminal portions having a potential difference. A space 32 is provided in the stepped portion of the ground terminal 14 b and the lower terminal 14 a , and a step 39 is formed in the cover 15 along the space 32 .

When designing a vehicle, the rotary electric machine is rotated and mountability on the vehicle is taken into consideration. At this time, members arranged around the rotating electrical machine may interfere with the rotating electrical machine. With this configuration, since there is a step on the rotating electrical machine 1 side, it is possible to avoid interference between members arranged around the rotating electrical machine 1 and the rotating electrical machine 1 . Since interference between members arranged around the rotating electric machine and the rotating electric machine 1 can be avoided, it is possible to obtain the rotating electric machine 1 that is highly mountable in a vehicle.

Embodiment 9.
A rotating electric machine 1 according to Embodiment 9 will be described. FIG. 22 is a diagram showing a main part of the rotary electric machine 1 according to the ninth embodiment, and is a side view of the connection terminal portion at the same position as in FIG. 21(b). A rotary electric machine 1 according to the ninth embodiment has a configuration in which the shape of a cover 15 is different from that of the first embodiment.

The control device 30 has a bottomed cylindrical cover 15 that surrounds the power module 9, the control circuit section 17, and the plurality of connection terminal sections from the radially outer side and axially one side. With the rotary electric machine 1 installed, the sloped portion 15a, which is the vertically lower peripheral wall portion of the portion of the cover 15 that surrounds the two specific connection terminal portions, is oriented vertically downward toward the opening end. Inclined. In this embodiment, the ground terminal 14b and the terminal 14a in FIG. 22 are connection terminal portions, and the ground terminal 14b and the lower terminal 14a are two specific connection terminal portions having a potential difference.

By configuring in this way, in an environment where mud, dust, etc. accumulates on the vehicle, mud, dust, etc. are discharged along the sloped portion 15a toward the ground side. Deposition can be prevented. Since dirt, dust, and the like are prevented from accumulating on the rotating electric machine 1, it is possible to obtain the rotating electric machine 1 with improved long-term electrical reliability.

Embodiment 10.
A rotating electric machine 1 according to the tenth embodiment will be described. FIG. 23 is a diagram showing a main part of the rotary electric machine 1 according to the tenth embodiment, and is a side view of the connection terminal portion at the same position as in FIG. 21(b). The rotary electric machine 1 according to the tenth embodiment has a configuration in which the material of the cover 15 is different from that of the first embodiment.

The cover 15 is made of metal such as aluminum. A portion of the cover 15 surrounding two specific connection terminal portions adjacent to each other in the circumferential direction is arranged with a space provided between the portion and the connection terminal portion connected to the bus bar. In this embodiment, the ground terminal 14b and the terminal 14a in FIG. 23 are connection terminal portions, and the ground terminal 14b and the lower terminal 14a, and the ground terminal 14b and the upper terminal 14a are two specific terminals each having a potential difference. It is a connection terminal part. The terminal 14a is a connection terminal portion connected to a board terminal 19, which is a bus bar.

When the cover 15 is made of metal, the ground terminal 14b and the cover 15 can be configured at the same potential, so the gap distance 15b between the cover 15 and the ground terminal 14b can be shortened. Since the potentials of the terminal 14a and the cover 15 are different, the distance between the cover 15 and the terminal 14a is long and the space 32a is provided.

By configuring in this way, the cover 15 and the ground terminal 14b can be installed as close as possible by utilizing the fact that the cover 15 has the same potential as the ground terminal 14b. Alternatively, the cover 15 and the ground terminal 14b can be placed in contact with each other. Therefore, the ground terminal 14b can be used for fixing and holding the cover 15. FIG. Further, since the cover 15 and the terminal 14a, which are at different potentials, are arranged with the space 32a provided, the rotating electrical machine 1 with high electrical reliability can be obtained.

Also, while this application has described various exemplary embodiments and examples, various features, aspects, and functions described in one or more of the embodiments may vary from particular embodiment to specific embodiment. The embodiments are applicable singly or in various combinations without being limited to the application.
Accordingly, numerous variations not illustrated are envisioned within the scope of the technology disclosed herein. For example, modification, addition or omission of at least one component, extraction of at least one component, and combination with components of other embodiments shall be included.

Hereinafter, various aspects of the present disclosure will be collectively described as appendices.

(Appendix 1)
a rotating shaft, a rotor that rotates integrally with the rotating shaft, a stator disposed radially outside the rotor and having a stator core wound with stator windings, and covering the outside of the stator core a rotary electric machine main body provided with a bracket to which the stator is fixed and which rotatably supports the rotating shaft, and a cooling fan fixed to the rotor;
a control device provided with a power module that supplies alternating current power to the stator winding and a control circuit unit that controls the power module, and is arranged outside the bracket;
a plurality of bus bars connected to the stator winding,
The control device has a plurality of connection terminals connected to the power module,
each of the plurality of connection terminal portions is connected to the plurality of bus bars or ground members,
One or both of the axial position and the radial position of the two specific connection terminal portions which are spaced apart in the circumferential direction and have a potential difference are arranged with a shift. electric machine.
(Appendix 2)
The control device has a connection terminal that connects the power module and the connection terminal portion,
The controller-integrated dynamoelectric machine according to appendix 1, wherein a portion of the connection terminal between the power module side and the connection terminal portion side is bent in an L shape.
(Appendix 3)
The three specific connection terminal portions arranged in the circumferential direction at intervals in the circumferential direction have two connection terminals on both sides in the circumferential direction with respect to the potential of the connection terminal portion in the center in the circumferential direction. The electric potential of each of the portions is different, and one or both of the axial position and the radial position of each of the two connecting terminal portions on both sides in the circumferential direction with respect to the connecting terminal portion in the center in the circumferential direction is The controller-integrated dynamoelectric machine according to appendix 1 or 2, which is arranged in a staggered manner.
(Appendix 4)
The connection terminal portion at the center in the circumferential direction is connected to the ground,
The controller-integrated dynamoelectric machine according to appendix 3, wherein each of the two connection terminal portions on both sides in the circumferential direction is connected to the bus bar.
(Appendix 5)
5. The controller-integrated dynamoelectric machine according to appendix 3 or 4, wherein one or both of the axial position and the radial position of the two connection terminal portions on both sides in the circumferential direction are shifted in the same direction.
(Appendix 6)
The control device is arranged on one side in the axial direction of the bracket,
The control device has a case surrounding the power module and the control circuit unit from the radially outer side,
The plurality of connection terminal portions are provided so as to protrude radially outward from the case,
6. The case according to any one of appendices 1 to 5, wherein the case partitions between two specific connection terminal portions adjacent to each other in the circumferential direction and has a case insulating wall protruding from the case body portion. The controller-integrated rotating electric machine described above.
(Appendix 7)
The control device is arranged on one side in the axial direction of the bracket,
The control device has a cover surrounding the power module, the control circuit section, and the plurality of connection terminal sections from the radially outer side and the one axial side,
6. The cover according to any one of appendices 1 to 5, wherein the cover partitions between two specific connection terminal portions adjacent to each other in the circumferential direction and has a cover insulating wall projecting from the cover body portion. The controller-integrated rotating electric machine described above.
(Appendix 8)
The control device is arranged on one side in the axial direction of the bracket,
The control device includes a case that surrounds the power module and the control circuit section from the radially outer side, and a case that surrounds the power module, the control circuit section, the plurality of connection terminal sections, and the case on the radially outer side and axially one side. a cover surrounding from
The plurality of connection terminal portions are provided so as to protrude radially outward from the case,
The case has a case insulating wall that partitions between two specific connection terminal portions adjacent to each other in the circumferential direction and protrudes from the case main body,
the cover has a cover insulating wall that partitions between two specific connection terminal portions adjacent to each other in the circumferential direction and protrudes from the cover main body;
the case insulating wall and the cover insulating wall are arranged with a gap therebetween in the circumferential direction,
6. The controller-integrated dynamoelectric machine according to any one of Appendices 1 to 5, wherein a labyrinth structure is formed by the case insulating wall and the cover insulating wall.
(Appendix 9)
The control device is arranged on one side in the axial direction of the bracket,
The control device has a cover surrounding the power module, the control circuit section, and the plurality of connection terminal sections from the radially outer side and the one axial side,
The portion of the cover surrounding two specific connection terminal portions that are adjacent to each other in the circumferential direction is the specific connection terminal portion that is shifted in one or both of the axial position and the radial position. 9. The controller-integrated rotating electric machine according to any one of appendices 1 to 8, which is formed along the arrangement of .
(Appendix 10)
The control device is arranged on one side in the axial direction of the bracket,
The control device has a bottomed cylindrical cover that surrounds the power module, the control circuit section, and the plurality of connection terminal sections from the radially outer side and the axial direction one side,
When the controller-integrated rotating electric machine is installed, the vertically lower peripheral wall portion of the cover portion surrounding the two specific connection terminal portions is directed vertically downward toward the opening end. The controller-integrated rotating electric machine according to any one of Supplementary Notes 1 to 9, which is inclined.
(Appendix 11)
The control device is arranged on one side in the axial direction of the bracket,
The control device has a cover surrounding the power module, the control circuit section, and the plurality of connection terminal sections from the radially outer side and the one axial side,
the cover is made of metal,
Supplementary note 1, wherein the portion of the cover surrounding two specific connection terminal portions adjacent to each other in the circumferential direction is arranged with a space between the portion and the connection terminal portion connected to the bus bar. 11. The controller-integrated dynamoelectric machine according to any one of 10 to 10.

1 rotating electric machine 2 rotor 2a field winding 3 stator 3a stator winding 3b stator core 3c lead wire 4 front bracket 5 rear bracket 5a protrusion 6 rotation sensor 6a sensor stator, 6a1 core portion, 6a2 resin portion, 6b sensor rotor, 7, 8 bearing, 9 power module, 9a terminal, 10 field module, 11 rotating shaft, 12 pulley, 13 slip ring, 13a connection wire, 14 case, 14a terminal, 14a1 connection part, 14b ground terminal, 14c L bending part, 15 cover, 15a gradient part, 15b distance, 16 brush, 16a brush holder, 17 control circuit part, 18 connecting board, 18a through hole, 19 board terminal , 19a connection part 19b connection end 20, 21 cooling fan 22, 23, 24 screw 25 resin material 26 connection terminal 30 control device 31 heat sink 31a radiation fin 32, 32a space 33 axial direction , 34, 35 space, 36 case insulating wall, 37 cover insulating wall, 38 labyrinth structure, 39 step, 40 rotary electric machine body, 100 vehicle

Claims (10)

a rotating shaft, a rotor that rotates integrally with the rotating shaft, a stator disposed radially outside the rotor and having a stator core wound with stator windings, and covering the outside of the stator core a rotary electric machine main body provided with a bracket to which the stator is fixed and which rotatably supports the rotating shaft, and a cooling fan fixed to the rotor;
a control device provided with a power module that supplies alternating current power to the stator winding and a control circuit unit that controls the power module, and is arranged outside the bracket;
a plurality of bus bars connected to the stator winding,
The control device has a plurality of connection terminals connected to the power module,
each of the plurality of connection terminal portions is connected to the plurality of bus bars or ground members,
The two specific connection terminal portions having a potential difference and being spaced apart in the circumferential direction are arranged such that one or both of the axial position and the radial position are shifted ,
The control device has a connection terminal that connects the power module and the connection terminal portion,
A controller-integrated dynamoelectric machine, wherein a portion of the connection terminal between the power module side and the connection terminal portion side is bent in an L shape. a rotating shaft, a rotor that rotates integrally with the rotating shaft, a stator disposed radially outside the rotor and having a stator core wound with stator windings, and covering the outside of the stator core a rotary electric machine main body provided with a bracket to which the stator is fixed and which rotatably supports the rotating shaft, and a cooling fan fixed to the rotor;
a control device provided with a power module that supplies alternating current power to the stator winding and a control circuit unit that controls the power module, and is arranged outside the bracket;
a plurality of bus bars connected to the stator winding,
The control device has a plurality of connection terminals connected to the power module,
each of the plurality of connection terminal portions is connected to the plurality of bus bars or ground members,
The two specific connection terminal portions having a potential difference and being spaced apart in the circumferential direction are arranged such that one or both of the axial position and the radial position are shifted,
The three specific connection terminal portions arranged in the circumferential direction at intervals in the circumferential direction have two connection terminals on both sides in the circumferential direction with respect to the potential of the connection terminal portion in the center in the circumferential direction. The electric potential of each of the portions is different, and one or both of the axial position and the radial position of each of the two connecting terminal portions on both sides in the circumferential direction with respect to the connecting terminal portion in the center in the circumferential direction is The controller- integrated rotating electrical machines are arranged in a staggered manner. The connection terminal portion at the center in the circumferential direction is connected to the ground,
3. The controller-integrated dynamoelectric machine according to claim 2 , wherein each of the two connection terminal portions on both sides in the circumferential direction is connected to the bus bar. 4. The controller-integrated dynamoelectric machine according to claim 2 , wherein one or both of the axial position and the radial position of the two connecting terminal portions on both sides in the circumferential direction are shifted in the same direction. a rotating shaft, a rotor that rotates integrally with the rotating shaft, a stator disposed radially outside the rotor and having a stator core wound with stator windings, and covering the outside of the stator core a rotary electric machine main body provided with a bracket to which the stator is fixed and which rotatably supports the rotating shaft, and a cooling fan fixed to the rotor;
a control device provided with a power module that supplies alternating current power to the stator winding and a control circuit unit that controls the power module, and is arranged outside the bracket;
a plurality of bus bars connected to the stator winding,
The control device has a plurality of connection terminals connected to the power module,
each of the plurality of connection terminal portions is connected to the plurality of bus bars or ground members,
The two specific connection terminal portions having a potential difference and being spaced apart in the circumferential direction are arranged such that one or both of the axial position and the radial position are shifted,
The control device is arranged on one side in the axial direction of the bracket,
The control device has a case surrounding the power module and the control circuit unit from the radially outer side,
The plurality of connection terminal portions are provided so as to protrude radially outward from the case,
The controller- integrated dynamoelectric machine, wherein the case partitions between two specific connection terminal portions adjacent to each other in the circumferential direction, and has a case insulating wall protruding from the case body portion. a rotating shaft, a rotor that rotates integrally with the rotating shaft, a stator disposed radially outside the rotor and having a stator core wound with stator windings, and covering the outside of the stator core a rotary electric machine main body provided with a bracket to which the stator is fixed and which rotatably supports the rotating shaft, and a cooling fan fixed to the rotor;
a control device provided with a power module that supplies alternating current power to the stator winding and a control circuit unit that controls the power module, and is arranged outside the bracket;
a plurality of bus bars connected to the stator winding,
The control device has a plurality of connection terminals connected to the power module,
each of the plurality of connection terminal portions is connected to the plurality of bus bars or ground members,
The two specific connection terminal portions having a potential difference and being spaced apart in the circumferential direction are arranged such that one or both of the axial position and the radial position are shifted,
The control device is arranged on one side in the axial direction of the bracket,
The control device has a cover surrounding the power module, the control circuit section, and the plurality of connection terminal sections from the radially outer side and the one axial side,
The controller-integrated dynamoelectric machine, wherein the cover partitions between two specific connection terminal portions adjacent to each other in the circumferential direction, and has a cover insulating wall projecting from the cover body portion. a rotating shaft, a rotor that rotates integrally with the rotating shaft, a stator disposed radially outside the rotor and having a stator core wound with stator windings, and covering the outside of the stator core a rotary electric machine main body provided with a bracket to which the stator is fixed and which rotatably supports the rotating shaft, and a cooling fan fixed to the rotor;
a control device provided with a power module that supplies alternating current power to the stator winding and a control circuit unit that controls the power module, and is arranged outside the bracket;
a plurality of bus bars connected to the stator winding,
The control device has a plurality of connection terminals connected to the power module,
each of the plurality of connection terminal portions is connected to the plurality of bus bars or ground members,
The two specific connection terminal portions having a potential difference and being spaced apart in the circumferential direction are arranged such that one or both of the axial position and the radial position are shifted,
The control device is arranged on one side in the axial direction of the bracket,
The control device includes a case that surrounds the power module and the control circuit section from the radially outer side, and a case that surrounds the power module, the control circuit section, the plurality of connection terminal sections, and the case on the radially outer side and axially one side. a cover surrounding from
The plurality of connection terminal portions are provided so as to protrude radially outward from the case,
The case has a case insulating wall that partitions between two specific connection terminal portions adjacent to each other in the circumferential direction and protrudes from the case main body,
the cover has a cover insulating wall that partitions between two specific connection terminal portions adjacent to each other in the circumferential direction and protrudes from the cover main body;
the case insulating wall and the cover insulating wall are arranged with a gap therebetween in the circumferential direction,
A controller -integrated rotating electric machine, wherein a labyrinth structure is formed by the case insulating wall and the cover insulating wall. a rotating shaft, a rotor that rotates integrally with the rotating shaft, a stator disposed radially outside the rotor and having a stator core wound with stator windings, and covering the outside of the stator core a rotary electric machine main body provided with a bracket to which the stator is fixed and which rotatably supports the rotating shaft, and a cooling fan fixed to the rotor;
a control device provided with a power module that supplies alternating current power to the stator winding and a control circuit unit that controls the power module, and is arranged outside the bracket;
a plurality of bus bars connected to the stator winding,
The control device has a plurality of connection terminals connected to the power module,
each of the plurality of connection terminal portions is connected to the plurality of bus bars or ground members,
The two specific connection terminal portions having a potential difference and being spaced apart in the circumferential direction are arranged such that one or both of the axial position and the radial position are shifted,
The control device is arranged on one side in the axial direction of the bracket,
The control device has a cover surrounding the power module, the control circuit section, and the plurality of connection terminal sections from the radially outer side and the one axial side,
The portion of the cover surrounding two specific connection terminal portions that are adjacent to each other in the circumferential direction is the specific connection terminal portion that is shifted in one or both of the axial position and the radial position. A controller -integrated rotating electric machine formed along the arrangement of a rotating shaft, a rotor that rotates integrally with the rotating shaft, a stator disposed radially outside the rotor and having a stator core wound with stator windings, and covering the outside of the stator core a rotary electric machine main body provided with a bracket to which the stator is fixed and which rotatably supports the rotating shaft, and a cooling fan fixed to the rotor;
a control device provided with a power module that supplies alternating current power to the stator winding and a control circuit unit that controls the power module, and is arranged outside the bracket;
and a plurality of bus bars connected to the stator winding, wherein
The control device has a plurality of connection terminals connected to the power module,
each of the plurality of connection terminal portions is connected to the plurality of bus bars or ground members,
The two specific connection terminal portions having a potential difference and being spaced apart in the circumferential direction are arranged such that one or both of the axial position and the radial position are shifted,
The control device is arranged on one side in the axial direction of the bracket,
The control device has a bottomed cylindrical cover that surrounds the power module, the control circuit section, and the plurality of connection terminal sections from the radially outer side and the axial direction one side,
When the controller-integrated rotating electric machine is installed, the vertically lower peripheral wall portion of the cover portion surrounding the two specific connection terminal portions is directed vertically downward toward the opening end. Inclined controller -integrated rotary electric machine. a rotating shaft, a rotor that rotates integrally with the rotating shaft, a stator disposed radially outside the rotor and having a stator core wound with stator windings, and covering the outside of the stator core a rotary electric machine main body provided with a bracket to which the stator is fixed and which rotatably supports the rotating shaft, and a cooling fan fixed to the rotor;
a control device provided with a power module that supplies alternating current power to the stator winding and a control circuit unit that controls the power module, and is arranged outside the bracket;
a plurality of bus bars connected to the stator winding,
The control device has a plurality of connection terminals connected to the power module,
each of the plurality of connection terminal portions is connected to the plurality of bus bars or ground members,
The two specific connection terminal portions having a potential difference and being spaced apart in the circumferential direction are arranged such that one or both of the axial position and the radial position are shifted,
The control device is arranged on one side in the axial direction of the bracket,
The control device has a cover surrounding the power module, the control circuit section, and the plurality of connection terminal sections from the radially outer side and the one axial side,
the cover is made of metal,
A portion of the cover surrounding two specific connection terminal portions adjacent to each other in the circumferential direction is arranged with a space between the portion and the connection terminal portion connected to the bus bar. Device-integrated rotating electric machine.

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