JP2023158710A - Controller-integrated rotary electric machine - Google Patents

Abstract

To obtain a controller-integrated rotary electric machine in which electric erosion that can be generated in adjacent connection terminal parts having a potential difference is suppressed.SOLUTION: A controller-integrated rotary electric machine includes a rotary electric machine main body part that is provided with a rotor, a stator having a stator core around which a stator winding is wound, a bracket covering the outer side of the stator core, and a cooling fan fixed to the rotor, a controller that is provided with a power module and a control circuit part for controlling the power module and that is disposed outside the bracket, and a plurality of bus bars that are connected to the stator winding. The controller includes a plurality of connection terminal parts connected to the power module. The connection terminal parts are connected to the respective bus bars or to a ground member, and are arranged at an interval in the circumferential direction. Two specific connection terminal parts having a potential difference, are located so as to be deviated from each other in the axial direction and/or the radial direction.SELECTED DRAWING: Figure 10

Description

The present application relates to a rotating electrical machine with an integrated control device.

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

Japanese Patent Application Publication No. 2014-110712

In Patent Document 1, the rotating electric machine main body and the control device are integrated by fastening with screws, so the rotating electric machine main body and the control device can be easily separated. However, the connection terminals, which are live wires fastened with screws, are exposed, and the connection terminals with potential differences are arranged side by side, so especially in air-cooled open type rotating electric machines, the connection terminals may be exposed to water. Since water tends to accumulate around the connecting terminal, and mud, dust, etc. tend to accumulate around the connecting terminal, there is a problem in that the connecting terminal gets electrically eroded and the connecting terminal gets disconnected.

The present application has been made in order to solve the above-mentioned problems, and its purpose is to obtain a control device-integrated rotating electric machine that suppresses galvanic corrosion that may occur in adjacent connection terminal portions with a potential difference.

The control device-integrated rotating electrical machine disclosed in the present application includes a rotating shaft, a rotor that rotates integrally with the rotating shaft, and a fixed stationary core that is disposed radially outside the rotor and has a stator core wound with stator windings. A rotary electric machine main body, which is provided with a cooling fan fixed to the rotor, a bracket that covers the outside of the stator core to which the stator is fixed, and rotatably supports the rotating shaft, and a stator winding. A power module that supplies AC power and a control circuit unit that controls the power module are provided, and the control device includes a control device disposed outside the bracket and a plurality of bus bars connected to the stator winding, and the control device includes: It has a plurality of connection terminal parts connected to the power module, each of the plurality of connection terminal parts is connected to a plurality of bus bars or ground members, is arranged at intervals in the circumferential direction, and has a potential difference. The two specific connection terminal portions are arranged so as to be shifted in one or both of the axial and radial positions.

According to the control device-integrated rotating electrical machine disclosed in the present application, each of the plurality of connection terminal portions is connected to a plurality of bus bars or ground members, is arranged at intervals in the circumferential direction, and has a potential difference between the plurality of connection terminal portions. Since the two specific connection terminal parts are disposed with deviations in one or both of the axial and radial positions, the circumferential direction and the axial or radial direction between the two specific connection terminal parts are Since a space is provided in the part where the interval is provided and the step is formed, it is difficult for water to accumulate between two specific connection terminals, and it is also difficult for mud, dust, etc. to accumulate between two specific connection terminals that are adjacent to each other. Electrolytic corrosion that may occur in the parts can be suppressed.

1 is a cross-sectional view parallel to an axial direction, schematically showing a controller-integrated rotating electric machine according to a first embodiment; FIG. 1 is a cross-sectional view showing a main part of a control device-integrated rotating electric machine according to a first embodiment; FIG. 1 is a sectional view showing a part of a control device-integrated rotating electric machine according to a first embodiment; FIG. FIG. 2 is a front view showing the control device side of the control device-integrated rotating electric machine according to the first embodiment. 5 is a cross-sectional view of the control device taken along the line AA in FIG. 4. FIG. FIG. 2 is a front view showing the rear side of the rotating electric machine main body of the control device-integrated rotating electric machine according to the first embodiment. FIG. 7 is a cross-sectional view of the rotating electric machine main body section taken along the BB cross-sectional position in FIG. 6; FIG. 7 is a cross-sectional view of the rotating electrical machine main body section taken along the line CC in FIG. 6; 1 is a front view showing main parts of a control device-integrated rotating electrical machine according to a first embodiment; FIG. 1 is a side view showing a main part of a control device-integrated rotating electrical machine according to a first embodiment; FIG. 1 is a diagram showing a controller-integrated rotating electrical machine according to a first embodiment attached to a vehicle; FIG. FIG. 12 is a diagram schematically showing main parts of the control device-integrated rotating electric machine in FIG. 11. FIG. 1 is a diagram showing a controller-integrated rotating electrical machine according to a first embodiment attached to a vehicle; FIG. FIG. 14 is a diagram schematically showing main parts of the control device-integrated rotating electric machine in FIG. 13; FIG. 3 is a sectional view showing a main part of a control device-integrated rotating electrical machine according to a second embodiment. FIG. 7 is a side view showing main parts of a control device-integrated rotating electric machine according to a third embodiment. FIG. 7 is a diagram showing main parts of a control device-integrated rotating electric machine according to a fourth embodiment. FIG. 7 is a diagram illustrating main parts of a control device-integrated rotating electrical machine according to a fifth embodiment. FIG. 7 is a diagram showing main parts of a control device-integrated rotating electric machine according to a sixth embodiment. FIG. 7 is a diagram showing main parts of a control device-integrated rotating electric machine according to a seventh embodiment. FIG. 7 is a diagram showing main parts of a control device-integrated rotating electrical machine according to an eighth embodiment. FIG. 7 is a diagram showing main parts of a control device-integrated rotating electric machine according to a ninth embodiment. FIG. 7 is a diagram showing main parts of a control device-integrated rotating electric machine according to a tenth embodiment.

Hereinafter, a controller-integrated rotating electric machine according to an embodiment of the present application will be described based on the drawings. In each figure, the same or equivalent members and parts will be described with the same reference numerals.

Embodiment 1.
FIG. 1 is a cross-sectional view parallel to the axial direction schematically showing a rotating electrical machine integrated with a control device for a vehicle (hereinafter referred to as rotating electrical machine 1) according to Embodiment 1, and FIG. 2 shows the main parts of rotating electrical machine 1. This is a sectional view showing an enlarged view of the part surrounded by an ellipse in FIG. 1, and FIG. 3 is a sectional view showing a part of the rotating electrical machine 1, in which the control device 30 is not attached to the rotating electrical machine main body 40. FIG. 4 is a front view showing the control device 30 side of the rotating electrical machine 1, with the cover 15 covering the front of the control device 30 removed, and FIG. 5 is a cross-sectional view taken along line AA in FIG. 6 is a front view showing the rear side of the rotating electrical machine main body 40 of the rotating electrical machine 1, and FIG. 7 is a cross-sectional view of the rotating electrical machine main body 40 taken along the line BB in FIG. 6. 8 is a sectional view of the rotating electric machine main body 40 taken along the line CC in FIG. 10 is a side view showing the main parts of the rotating electrical machine 1, a side view showing the connection terminal section shown in FIG. 9, FIG. 11 is a diagram showing the rotating electrical machine 1 attached to a vehicle, and FIG. 13 is a diagram schematically showing the connection terminal section which is the main part of the electric machine 1. FIG. 13 is a diagram showing the rotating electrical machine 1 attached to a vehicle. FIG. 14 is a diagram schematically showing the connection terminal section which is the main part of the rotating electrical machine in FIG. 13. It is. The rotating electric machine 1 includes a rotating electric machine main body 40, a control device 30, and a connecting board 18, and the rotating electric machine main body 40 and the control device 30 are electrically connected via a board terminal 19 included in the connecting board 18. This is a rotating electric machine with an integrated control device for connected vehicles. The details of each part will be explained below.

<Rotating electrical machine 1>
The rotating electric machine main body 40 is a fixed rotary machine having a rotating shaft 11, a rotor 2 that rotates integrally with the rotating shaft 11, and a stator core 3b that is arranged on the radially outer side of the rotor 2 and around which a stator winding 3a is wound. It has a bracket that covers the outside of the child 3 and the stator core 3b to which the stator 3 is fixed and rotatably supports the rotating shaft 11, and cooling fans 20 and 21 that are fixed to the rotor 2. The rotating electric machine 1 shown in the first embodiment is an air-cooled open type rotating electric machine.

The brackets include a front bracket 4 that holds one end of the rotating shaft 11 via a bearing 7 and covers the front side of the rotor 2, and a front bracket 4 that holds the other end of the rotating shaft 11 via a bearing 8 and covers the front side of the rotor 2. and a rear bracket 5 that covers the rear side of the vehicle. Here, the front side refers to the side of the pulley 12, and the rear side refers to 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 a front bracket 4 and a rear bracket 5. The stator winding 3a wound around the stator core 3b is a three-phase stator winding 3a. One end of the rotating 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), and transfers torque to and from the internal combustion engine in both directions.

The rotor 2 includes a field core 2b and a field winding 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 rotating electrical machine body 40. 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 2a via the slip ring 13. The rotating electric machine 1 includes a brush holder 16a provided with a brush 16, and when the brush 16 slides on the slip ring 13, the field winding 2a is energized.

As shown in FIG. 1, the rotating electrical machine main body 40 includes a rotation sensor 6 that detects the rotational state of the rotor 2 via the rotation shaft 11. The rotation sensor 6 is arranged between the slip ring 13 and the bearing 8 on the outside of the rear bracket 5 so as to be coaxial with the rotating shaft 11, and appropriately detects the position of the rotating shaft 11, that is, the magnetic pole of the rotor 2. As shown in FIG. 2, the rotation sensor 6 includes 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 protrusion 5a that protrudes toward one side in the axial direction. The outer diameter surface of the core portion 6a1 of the sensor stator 6a is fitted onto the inner diameter surface of the protruding portion 5a. The sensor stator 6a is attached to the heat sink 31 using the resin portion 6a2. Signal wiring (not shown) of the rotation sensor 6 is connected to a control circuit section 17, which will be described later.

As shown in FIG. 1, the control device 30 includes a power module 9 that supplies alternating current power to the stator winding 3a, and a control circuit section 17 that controls the power module 9. The control device 30 is arranged on one side in the axial direction, which is the outside of the bracket. The arrangement of the control device 30 is not limited to one side of the bracket in the axial direction. The control device 30 further includes a field module 10 that supplies 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.

The control device 30 also includes a case 14 that surrounds the power module 9, the field module 10, and the control circuit section 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 provided with radiation fins 31a. 31, a terminal 14a and a ground terminal 14b which are a plurality of connection terminal parts connected to the terminal 9a of the power module 9, the power module 9, the field module 10, the control circuit part 17, and the terminal 14a and the ground terminal 14b. It has a cover 15 that surrounds it from the outside in the radial direction and from one side in the axial direction. The control device 30 has a connection terminal 26 that connects the power module 9 and the terminal 14a, and a connection terminal 26 that connects 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 a 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 include switching elements and peripheral circuits thereof. The power module 9 and the field module 10 have switching elements and the like mounted on a lead frame for wiring, and are each integrated by resin molding using 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 secured to the connecting board 18 by a snap fit at its peripheral edge. The inside of the case 14 is sealed with a resin material 25 after each module and the like are mounted. Note that in FIG. 4, the resin material 25 is omitted.

The case 14 is made of an insulating resin, such as polyphenylene sulfide. The connection terminal 26, the terminal 14a, and the ground terminal 14b are insert-molded in the case 14, as shown in FIG. The terminal 14a and the ground terminal 14b are provided to protrude radially outward from the case 14. Each of the plurality of connection terminal parts 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. Details of the arrangement of these connection terminal portions will be described later. The outer shape of the case 14 is approximately rectangular in order to facilitate mounting of each module and to simplify the configuration of peripheral circuits. Further, the outer shape of the heat sink 31 is also provided in a shape that generally matches the outer shape of the case 14.

The connecting board 18 is a board on which a board terminal 19 for connecting the rotating electrical machine main body 40 and the control device 30 is insert-molded. The 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 is 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 to one side in the axial direction, passes through the through hole 18a. The end of the lead wire 3c and the board terminal 19 are electrically connected by welding at a connection portion 19a.

<Assembling procedure of rotating electric machine 1>
The assembly procedure of the rotating electric machine 1 will be explained. The connecting board 18 is fixed to the rear bracket 5 with screws 22. When attaching the connecting board 18 to the rear bracket 5, the end of the lead wire 3c extending from the stator 3 to one side in the axial direction passes through the through hole 18a of the connecting board 18. The end of the lead wire 3c and the board terminal 19 are connected by welding at the connection portion 19a.

After the sensor stator 6a is attached to the heat sink 31, as shown in FIG. 3, the control device 30 is fixed to the rear bracket 5 from the rear side of the rotating electrical machine body 40 with screws. The control device 30 has a space formed in the center through which the rotating shaft 11 passes, a brush holder 16a is arranged in this space, and the brush holder 16a is fixed to the control device 30.

The terminal 14a of the control device 30 and the board terminal 19 of the connecting board 18 are fixed with screws 23 at the connection end 19b shown in FIG. The ground terminal 14b of the control device 30 and the heat sink 31 are fixed with screws 24. By these fixations, the respective parts are electrically connected. The direction of the fixed shaft by the screw is parallel to the axial direction.The direction of the fixed shaft is not limited to the direction parallel to the axial direction. Further, 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 field module 10 are connected to the control circuit section 17 by welding or the like. Thereafter, the molten 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 brush 16, etc. from the outside, the peripheral edge of the cover 15 is engaged with the connecting board 18 by a snap fit so as to follow the outer peripheral shape of the control device 30. 15 is mounted on the control device 30.

<Operation of rotating electric machine 1>
The operation of the rotating electric machine 1 will be explained.
When starting the engine, 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 stator winding 3a. On the other hand, the field current controlled by the field module 10 is supplied to the field winding 2a via the brush 16, slip ring 13, and connection 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 the 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 rotating electrical machine main body 40 via the crank pulley, belt, and pulley 12. The rotor 2 rotates due to the transmission of the rotational torque, and a three-phase AC voltage is induced in the stator winding 3a. This three-phase AC voltage is sent to the power module 9, and the three-phase AC voltage is rectified into DC power by the power module 9. The DC power is supplied to the battery and the electrical load. Note that the signal output from the rotation sensor 6 is sent to the control circuit section 17 via a signal line led out from the sensor stator 6a. The 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 engine starting operation.

<Arrangement of terminal 14a and grand terminal 14b>
The arrangement of the connection terminal portion, which is the main part of the present application, will be explained. The two specific connection terminal portions, which are spaced apart in the circumferential direction and have a potential difference, are arranged with one or both of the axial and radial positions shifted. In this embodiment, as described above, the terminal 14a and the ground terminal 14b are the connection terminal sections, and the terminal 14a and the ground terminal 14b on the lower side of FIG. 10 are two specific connection terminal sections having a potential difference. As shown in FIG. 9, the terminal 14a and the ground terminal 14b are arranged at intervals in the circumferential direction. As shown in FIG. 10, the lower terminal 14a and the ground terminal 14b are arranged with their positions shifted in the axial direction. The terminal 14a and the ground terminal 14b are not limited to a configuration in which the positions of the terminals 14a and the ground terminals 14b are shifted only in the axial direction, but may be arranged in a configuration in which the terminals 14a and the ground terminals 14b are shifted in both the axial direction and the radial direction. Alternatively, the terminal 14a and the ground terminal 14b may not be arranged with their positions shifted in the axial direction, but may be arranged with their positions shifted in the radial direction. Furthermore, in the present embodiment, in FIG. 10, the upper terminal 14a may also be disposed offset in the axial direction like the lower terminal 14a.

With this configuration, a gap is provided in the circumferential direction and axial direction between the adjacent terminal 14a and the ground terminal 14b, and 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 mud and dust are also difficult to accumulate, thereby preventing electrolytic corrosion that may occur between the terminal 14a and the ground terminal 14b, which have a potential difference between them. Can be suppressed. Since electrolytic 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 electrolytic corrosion can be avoided.

The effect of suppressing electrolytic corrosion will be further explained using an example of the rotating electric machine 1 mounted on the vehicle 100. The direction above the road surface is defined as the sky direction. In FIG. 11, the rotating electrical machine 1 is attached to the vehicle 100 so that the top direction of the vehicle 100 and the axial direction 33 of the rotating electrical machine 1 are parallel to each other. FIG. 12 is a diagram schematically showing the arrangement of the terminal 14a and the ground terminal 14b in FIG. 11. When the rotating electrical machine 1 is arranged in this manner, a space 34 including a portion opened toward the ground is formed in the portion where the step is formed.

In FIG. 13, the rotating electrical machine 1 is attached to the vehicle 100 so that the left-right direction of the vehicle 100, which is parallel to the road surface, is parallel to the axial direction 33 of the rotating electrical machine 1. FIG. 14 is a diagram schematically showing the arrangement of the terminal 14a and the ground terminal 14b in FIG. 13. When the rotating electric machine 1 is arranged in this manner, a space 35 including a portion opened toward the ground is formed in the portion where the step is formed. A similar space 35 is also formed when the rotating electrical machine 1 is attached to the vehicle 100 so that the longitudinal direction of the vehicle 100 parallel to the road surface is parallel to the axial direction 33 of the rotating electrical machine 1.

In this way, no matter how the rotating electrical machine 1 is arranged in the axial direction 33 with respect to the vehicle 100, the spaces 34 and 35 including the portions opening toward the ground can be formed in the portion where the step is formed. can. Since the spaces 34 and 35 include parts that open toward the ground, it is difficult for water to accumulate in the spaces 34 and 35, and mud and dust are also difficult to accumulate in the spaces 34 and 35. It is possible to suppress electrolytic corrosion that may occur in Further, the options for arranging the rotating electric machine 1 in the vehicle 100 can be increased.

Note that although an example has been shown in which the axial direction 33 of the rotating electric machine 1 is parallel to the vertical direction or the left-right direction of the vehicle 100, it is possible to has the same effect. Therefore, it is possible to mount the rotating electrical machine 1 at an angle when mounting it on a vehicle, and a space is formed no matter which direction the rotating electrical machine 1 is oriented in, front, back, left, right, top and bottom when climbing a slope or the like. Since a space is formed, it is difficult for water to accumulate in the space, and mud, dust, etc. are also difficult to accumulate in the space, so that electrolytic corrosion that may occur between the terminal 14a and the ground terminal 14b, which are adjacent to each other and have a potential difference, can be suppressed.

As described above, in the rotating electric machine 1 according to the first embodiment, the terminal 14a and the ground terminal 14b, which are two specific connection terminal portions that are spaced apart in the circumferential direction and have a potential difference, are arranged in the axial direction. Since the terminal 14a and the ground terminal 14b are arranged with a deviation in one or both of the positions and the radial direction, a gap is provided in the circumferential direction and the axial direction between the terminal 14a and the ground terminal 14b, and a space 32 is created in the step portion. Therefore, water is difficult to accumulate between the terminal 14a and the ground terminal 14b, mud, dust, etc. are difficult to accumulate, and electrolytic corrosion that may occur between the adjacent terminal 14a and the ground terminal 14b, which have a potential difference, can be suppressed. can. Further, since electrical corrosion that may occur in the terminal 14a and the ground terminal 14b is suppressed, disconnection between the terminal 14a and the ground terminal 14b due to electrical corrosion can be avoided.

When the rotating electric machine 1 is mounted on the vehicle 100, a space including a portion opened toward the bottom is formed regardless of the axial direction 33 of the rotating electric machine 1 in any direction of the vehicle 100, such as the front-rear direction, the left-right direction, or the vertical direction. Therefore, the options when mounting the rotating electric machine 1 on the vehicle 100 increase, and the accumulation of mud, dust, etc. in the space can be suppressed.

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

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

With this configuration, the load applied to the connection terminal 26 can be absorbed at the L-bending portion 14c. Therefore, in a high vibration state such as when starting the engine, vibrations transmitted to the connection terminal 26 can be absorbed at 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 terminals 26 is reduced, damage to the connection terminals 26 is suppressed, so it is possible to obtain the rotating electric machine 1 with highly reliable electrical connections.

Embodiment 3.
A rotating electrical machine 1 according to a third embodiment will be described. FIG. 16 is a side view showing the main parts of the rotating electric machine 1 according to the third embodiment, and is a side view of the control device 30 in the same position as FIG. 10. The rotating electrical machine 1 according to the third embodiment has a configuration different from that of the first embodiment in the arrangement of the terminals 14a.

The three specific connection terminal parts arranged in the circumferential direction at intervals in the circumferential direction are arranged such that the potential of the connection terminal part in the center in the circumferential direction is different from that of the two connection terminal parts on both sides in the circumferential direction. have different potentials, and one or both of the axial and radial positions of the two connecting terminals on both sides in the circumferential direction are shifted from the connecting terminal in the center in the circumferential direction. There is. In this embodiment, the three specific connection terminal sections are two terminals 14a and one ground terminal 14b.

With this configuration, a gap is provided in the circumferential direction and the axial direction between the terminals 14a and 14b on both sides adjacent to the central ground terminal 14b, and a space is created in the stepped portion. 32 are provided. Since the spaces 32 are provided on both sides, it is difficult for water to accumulate in the area between the ground terminal 14b and the terminals 14a on both sides, and mud, dust, etc. Electrolytic corrosion that may occur can be suppressed. Since electrolytic 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 electrolytic corrosion can be avoided.

The three specific connection terminal sections are not limited to two terminals 14a and one ground terminal 14b. It may be a terminal that connects with other parts, and by arranging both terminals at different positions, the rotating electric machine 1 can suppress electrolytic corrosion, which prevents water from accumulating and dirt and dust from accumulating. Obtainable. Further, 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 terminals 14a on both sides are not limited to this, and may be arranged so that they are shifted in the opposite direction.

In this embodiment, the connection terminal section at the center in the circumferential direction is connected to the ground, and the two connection terminal sections on both sides in the circumferential direction are each connected to a board terminal 19 that is a bus bar. With this configuration, the number of connection terminals connected to the ground can be reduced, so the productivity of the rotating electric machine 1 can be improved.

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

Embodiment 4.
A rotating electric machine 1 according to a fourth embodiment will be described. FIG. 17 is a diagram showing the main parts of the rotating electric machine 1 according to the fourth embodiment, in which FIG. 17(a) is a front view of the connection terminal section seen from one side in the axial direction, and FIG. It is a side view of the connection terminal part shown in a). The rotating electric machine 1 according to the fourth embodiment has a configuration different from that of the first embodiment in the arrangement of the connection terminal portions.

In this embodiment, the terminal 14a and the ground terminal 14b are connection terminal sections, and the terminal 14a and the ground terminal 14b are two specific connection terminal sections having a potential difference. As shown in FIG. 17(a), the terminals 14a and the ground terminals 14b are arranged at intervals in the circumferential direction, and are also arranged at shifted positions in the radial direction. The terminal 14a and the ground terminal 14b are arranged with their positions shifted in the axial direction, as shown in 17(b). The terminal 14a and the ground terminal 14b are fixed with screws, and the direction of the axis of fixation by the screws is perpendicular to the axial direction 33.

Even in this configuration in which both the axial and radial positions of the terminal 14a and the ground terminal 14b are shifted, a space 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 mud and dust are also difficult to accumulate, thereby preventing electrolytic corrosion that may occur between the terminal 14a and the ground terminal 14b, which have a potential difference between them. Can be suppressed.

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

The case 14 has a case insulating wall 36 that partitions between two specific connection terminal portions adjacent to each other in the circumferential direction and protrudes from the case main body portion. In this embodiment, the terminal 14a and the ground terminal 14b are connection terminal sections, and the terminal 14a and the ground terminal 14b are two specific connection terminal sections having a potential difference. In FIG. 18, 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. The case insulating wall 36 is made of resin and is integrally molded with the case 14. The size of the case insulating wall 36 in the direction perpendicular to the paper plane in FIG. 18 is the height that separates the terminal 14a and the screws attached to the terminal 14a from the adjacent ground terminal 14b and the screws 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, an electrically reliable rotating electric machine 1 can be obtained. Note that 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 fall out along the case insulating wall 36, so even if the case insulating wall 36 is provided, the terminal 14a and Water does not remain around the grand terminal 14b.

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

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

By providing the cover insulating wall 37 in this way, 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, an electrically reliable rotating electric machine 1 can be obtained. Note that the cover insulating wall 37 is plate-shaped, and even if water enters around the terminal 14a and the ground terminal 14b, the water will fall out along the cover insulating wall 37, so even if the cover insulating wall 37 is provided, the terminal 14a and Water does not remain around the grand terminal 14b.

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

The case 14 has a case insulating wall 36 that partitions between two specific connection terminal portions adjacent to each other in the circumferential direction and protrudes from the case main body portion. The cover 15 has a cover insulating wall 37 that partitions between two specific connection terminal portions adjacent to each other in the circumferential direction and protrudes from the cover main body portion. In this embodiment, the terminal 14a and the ground terminal 14b are connection terminal sections, and the terminal 14a and the ground terminal 14b are two specific connection terminal sections having a potential difference. Although not shown and 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 between them in the circumferential direction. When viewed in the direction of arrow Z, the case insulating wall 36 and the cover insulating wall 37 are arranged to intersect, and the case insulating wall 36 and the cover insulating wall 37 form a labyrinth structure 38 (the area 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, it is possible to obtain an electrically reliable rotating electric machine 1.

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

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

When designing a vehicle, consider how the rotating electric machine can be rotated and how easily it can be mounted on the vehicle. 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 side of the rotating electrical machine 1, interference between the rotating electrical machine 1 and members arranged around the rotating electrical machine can be avoided. Since interference between members disposed around the rotating electrical machine and the rotating electrical machine 1 can be avoided, it is possible to obtain the rotating electrical machine 1 with high vehicle mountability.

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

The control device 30 includes 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 outside in the radial direction and from one side in the axial direction. When the rotating electric machine 1 is installed, the sloped portion 15a, which is the vertically lower peripheral wall portion of the portion of the cover 15 surrounding the two specific connection terminal portions, is arranged so that it moves vertically downward toward the opening end. It is sloping. In this embodiment, the ground terminal 14b and the terminal 14a in FIG. 22 are connection terminal parts, and the ground terminal 14b and the lower terminal 14a are two specific connection terminal parts having a potential difference.

With this configuration, in an environment where mud, dust, etc. are accumulated on the vehicle, mud, dust, etc. are discharged to the ground side along the slope section 15a, so that mud, dust, etc. are prevented from reaching the rotating electric machine 1. Deposition can be prevented. Since the accumulation of mud, dust, etc. on the rotating electric machine 1 is prevented, it is possible to obtain the rotating electric machine 1 with improved long-term electrical reliability.

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

The cover 15 is made of metal such as aluminum. The portions of the cover 15 surrounding two specific connection terminal portions adjacent to each other in the circumferential direction are arranged with a space provided between the portions and the connection terminal portions connected to the bus bar. In this embodiment, the ground terminal 14b and the terminal 14a in FIG. 23 are connection terminal parts, and the ground terminal 14b and the lower terminal 14a, and the ground terminal 14b and the upper terminal 14a each have two specific terminals with a potential difference. This is the connection terminal section. 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 to have the same potential, so the gap distance 15b between the cover 15 and the ground terminal 14b can be shortened. Since the terminal 14a and the cover 15 have different potentials, the gap between the cover 15 and the terminal 14a is long, and a space 32a is provided.

With this configuration, 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 installed in contact with each other. Therefore, the ground terminal 14b can be used for fixing and holding the cover 15. Furthermore, since the cover 15 and the terminal 14a, which have different potentials, are arranged with a space 32a between them, it is possible to obtain an electrically reliable rotating electric machine 1.

Additionally, while this application describes various exemplary embodiments and examples, the various features, aspects, and functions described in one or more embodiments may differ from those described in a particular embodiment. The invention is not limited to application, and can be applied to the embodiments alone or in various combinations.
Accordingly, countless variations not illustrated are envisioned within the scope of the technology disclosed herein. For example, this includes cases where at least one component is modified, added, or omitted, and cases where at least one component is extracted and combined with components of other embodiments.

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

(Additional note 1)
A rotating shaft, a rotor that rotates integrally with the rotating shaft, a stator that is arranged radially outside the rotor and has a stator core around which a stator winding is wound, and a stator that covers the outside of the stator core. a rotating electric machine main body portion provided with a bracket to which the stator is fixed and rotatably supports the rotating shaft; and a cooling fan fixed to the rotor;
a control device disposed outside the bracket, including a power module that supplies alternating current power to the stator winding, and a control circuit section that controls the power module;
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, which are arranged at intervals in the circumferential direction and have a potential difference, are arranged in a control device-integrated rotation device in which one or both of the axial and radial positions are shifted. Electric machine.
(Additional note 2)
The control device has a connection terminal connecting the power module and the connection terminal section,
The controller-integrated rotating electric 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 into an L-shape.
(Additional note 3)
The three specific connection terminal portions arranged in the circumferential direction at intervals in the circumferential direction are different from the potential of the connection terminal portion in the center in the circumferential direction, compared to the potential of the two connection terminals on both sides in the circumferential direction. The respective potentials of the parts are different, and one or both of the axial position and the radial position of each of the two connecting terminal parts on both sides in the circumferential direction with respect to the connecting terminal part in the center in the circumferential direction, The control device-integrated rotating electrical machine according to Supplementary note 1 or 2, which is arranged in a staggered manner.
(Additional note 4)
The connection terminal portion at the center in the circumferential direction is connected to ground,
The control device-integrated rotating electric 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 rotating electric machine according to appendix 3 or 4, wherein one or both of the axial and radial positions of the two connecting 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 of the bracket in the axial direction,
The control device has a case that surrounds the power module and the control circuit section from the outside in a radial direction,
The plurality of connection terminal portions are provided to protrude radially outward from the case,
According to any one of Supplementary Notes 1 to 5, the case has a case insulating wall that partitions between the two specific connection terminal parts that are adjacent to each other in the circumferential direction and protrudes from the case main body part. The rotating electrical machine with integrated control device described above.
(Appendix 7)
The control device is arranged on one side of the bracket in the axial direction,
The control device includes a cover that surrounds the power module, the control circuit section, and the plurality of connection terminal sections from the outside in the radial direction and from one side in the axial direction,
According to any one of Supplementary Notes 1 to 5, the cover has a cover insulating wall that partitions between the two specific connection terminal portions adjacent to each other in the circumferential direction and protrudes from the cover main body portion. The rotating electrical machine with integrated control device described above.
(Appendix 8)
The control device is arranged on one side of the bracket in the axial direction,
The control device includes a case that surrounds the power module and the control circuit section from the outside in the radial direction, and a case that surrounds the power module, the control circuit section, the plurality of connection terminal sections, and the case on the outside in the radial direction and one side in the axial direction. a cover surrounding the
The plurality of connection terminal portions are provided to protrude radially outward from the case,
The case has a case insulating wall that partitions between the 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 the two specific connection terminal portions adjacent to each other in the circumferential direction and protrudes from the cover main body portion,
The case insulating wall and the cover insulating wall are arranged with a gap between them in the circumferential direction,
The controller-integrated rotating electric machine according to any one of Supplementary Notes 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 of the bracket in the axial direction,
The control device includes a cover that surrounds the power module, the control circuit section, and the plurality of connection terminal sections from the outside in the radial direction and from one side in the axial direction,
The portions of the cover surrounding two specific connection terminal portions that are adjacent to each other in the circumferential direction are each of the specific connection terminal portions that are shifted in one or both of the axial and radial positions. The control device-integrated rotating electrical machine according to any one of Supplementary Notes 1 to 8, which is formed so as to follow the arrangement.
(Appendix 10)
The control device is arranged on one side of the bracket in the axial direction,
The control device includes a bottomed cylindrical cover that surrounds the power module, the control circuit section, and the plurality of connection terminal sections from the outside in the radial direction and from one side in the axial direction,
When the control device-integrated rotating electric machine is installed, a vertically lower peripheral wall portion of a portion of the cover surrounding the two specific connection terminal portions is arranged to move vertically downward toward the opening end. The control device-integrated rotating electrical machine according to any one of Supplementary Notes 1 to 9, which is inclined.
(Appendix 11)
The control device is arranged on one side of the bracket in the axial direction,
The control device includes a cover that surrounds the power module, the control circuit section, and the plurality of connection terminal sections from the outside in the radial direction and from one side in the axial direction,
The cover is made of metal,
Supplementary Note 1, wherein the portions of the cover surrounding two specific connection terminal portions that are adjacent to each other in the circumferential direction are arranged with a space provided between them and the connection terminal portions connected to the bus bar. 10. The control device-integrated rotating electric 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 Projection, 6 Rotation sensor, 6a Sensor stator, 6a1 core part, 6a2 resin part, 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 bent part, 15 cover, 15a slope 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 rotating electric machine main body, 100 vehicle

The control device-integrated rotating electrical machine disclosed in the present application includes a rotating shaft, a rotor that rotates integrally with the rotating shaft, and a fixed stationary core that is disposed radially outside the rotor and has a stator core wound with stator windings. A rotary electric machine main body, which is provided with a cooling fan fixed to the rotor, a bracket that covers the outside of the stator core to which the stator is fixed, and rotatably supports the rotating shaft, and a stator winding. A power module that supplies AC power and a control circuit unit that controls the power module are provided, and the control device includes a control device disposed outside the bracket and a plurality of bus bars connected to the stator winding, and the control device includes: It has a plurality of connection terminal parts connected to the power module, each of the plurality of connection terminal parts is connected to a plurality of bus bars or ground members, is arranged at intervals in the circumferential direction, and has a potential difference. The two specific connection terminal portions are arranged to be shifted in one or both of the axial and radial positions , and the control device has a connection terminal that connects the power module and the connection terminal portion, and the control device has a connection terminal that connects the power module and the connection terminal portion, and , the portion between the power module side and the connection terminal side is bent into an L-shape .

Claims (11)

A rotating shaft, a rotor that rotates integrally with the rotating shaft, a stator that is arranged radially outside the rotor and has a stator core around which a stator winding is wound, and a stator that covers the outside of the stator core. a rotating electric machine main body portion provided with a bracket to which the stator is fixed and rotatably supports the rotating shaft; and a cooling fan fixed to the rotor;
a control device disposed outside the bracket, including a power module that supplies alternating current power to the stator winding, and a control circuit section that controls the power module;
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, which are arranged at intervals in the circumferential direction and have a potential difference, are arranged in a control device-integrated rotation device in which one or both of the axial and radial positions are shifted. Electric machine. The control device has a connection terminal connecting the power module and the connection terminal section,
The controller-integrated rotating electrical machine according to claim 1, wherein a portion of the connection terminal between the power module side and the connection terminal portion side is bent into an L-shape. The three specific connection terminal portions arranged in the circumferential direction at intervals in the circumferential direction are different from the potential of the connection terminal portion in the center in the circumferential direction, compared to the potential of the two connection terminals on both sides in the circumferential direction. The respective potentials of the parts are different, and one or both of the axial position and the radial position of each of the two connecting terminal parts on both sides in the circumferential direction with respect to the connecting terminal part in the center in the circumferential direction, The control device-integrated rotating electric machine according to claim 1, wherein the control device is arranged in a shifted manner. The connection terminal portion at the center in the circumferential direction is connected to ground,
The controller-integrated rotating electric machine according to claim 3, wherein each of the two connection terminal portions on both sides in the circumferential direction is connected to the bus bar. 5. The controller-integrated rotating electric machine according to claim 3, wherein one or both of the axial and radial positions of the two connecting terminal portions on both sides in the circumferential direction are shifted in the same direction. The control device is arranged on one side of the bracket in the axial direction,
The control device has a case that surrounds the power module and the control circuit section from the outside in a radial direction,
The plurality of connection terminal portions are provided to protrude radially outward from the case,
The control device integrated type according to claim 1, wherein the case has a case insulating wall that partitions between the two specific connection terminal portions adjacent to each other in the circumferential direction and protrudes from the case main body. Rotating electric machine. The control device is arranged on one side of the bracket in the axial direction,
The control device includes a cover that surrounds the power module, the control circuit section, and the plurality of connection terminal sections from the outside in the radial direction and from one side in the axial direction,
The control device integrated type according to claim 1, wherein the cover has a cover insulating wall that partitions between the two specific connection terminal portions adjacent to each other in a circumferential direction and protrudes from the cover main body portion. Rotating electric machine. The control device is arranged on one side of the bracket in the axial direction,
The control device includes a case that surrounds the power module and the control circuit section from the outside in the radial direction, and a case that surrounds the power module, the control circuit section, the plurality of connection terminal sections, and the case on the outside in the radial direction and one side in the axial direction. a cover surrounding the
The plurality of connection terminal portions are provided to protrude radially outward from the case,
The case has a case insulating wall that partitions between the 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 the two specific connection terminal portions adjacent to each other in the circumferential direction and protrudes from the cover main body portion,
The case insulating wall and the cover insulating wall are arranged with a gap between them in the circumferential direction,
The control device integrated rotating electric machine according to claim 1, wherein a labyrinth structure is formed by the case insulating wall and the cover insulating wall. The control device is arranged on one side of the bracket in the axial direction,
The control device includes a cover that surrounds the power module, the control circuit section, and the plurality of connection terminal sections from the outside in the radial direction and from one side in the axial direction,
The portions of the cover surrounding two specific connection terminal portions that are adjacent to each other in the circumferential direction are each of the specific connection terminal portions that are shifted in one or both of the axial and radial positions. The control device-integrated rotating electric machine according to claim 1, which is formed so as to follow the arrangement. The control device is arranged on one side of the bracket in the axial direction,
The control device includes a bottomed cylindrical cover that surrounds the power module, the control circuit section, and the plurality of connection terminal sections from the outside in the radial direction and from one side in the axial direction,
When the control device-integrated rotating electric machine is installed, a vertically lower peripheral wall portion of a portion of the cover surrounding the two specific connection terminal portions is arranged to move vertically downward toward the opening end. The controller-integrated rotating electric machine according to claim 1, which is inclined. The control device is arranged on one side of the bracket in the axial direction,
The control device includes a cover that surrounds the power module, the control circuit section, and the plurality of connection terminal sections from the outside in the radial direction and from one side in the axial direction,
The cover is made of metal,
2. A portion of the cover surrounding two specific connection terminal portions that are adjacent to each other in a circumferential direction are arranged with a space provided between the portions of the cover and the connection terminal portions that are connected to the bus bar. 1. The control device-integrated rotating electric machine according to 1.

Images