WO2021059677A1

WO2021059677A1 - Rotating machine

Info

Publication number: WO2021059677A1
Application number: PCT/JP2020/027246
Authority: WO
Inventors: 洋平 ▲高▼橋; 好晴内藤; 貴彦大石
Original assignee: 株式会社明電舎
Priority date: 2019-09-25
Filing date: 2020-07-13
Publication date: 2021-04-01
Also published as: JP2021052499A

Abstract

[Problem] To provide a motor 1 in which work for setting a bus bar assembly 60 in a partition wall 3a can be facilitated.　[Solution] The motor 1 is provided with: a first chamber 51 for housing a rotor and a stator; a second chamber 52 for housing an inverter for controlling the drive of the rotor; the partition wall 3a for separating both chambers from each other; and the bus bar assembly 60 made to pass through a through-hole provided in the partition wall 3a. The bus bar assembly 60 is provided with a bus bar 62W for energization and an insulating holding member 61 for holding the bus bar 62W. The holding member 61 is fixed to the side surface of the partition wall 3a on the second chamber 52 side. A ring-shaped O-ring 63 is interposed between the holding member 61 and the side surface. The bus bar 62W held by the holding member 61 passes through the through-hole in the partition wall 3a.

Description

Rotating machine

The present invention relates to a rotating machine such as a motor and a generator (dynamo) provided with a control device.

Conventionally, the first chamber for accommodating the rotor and the stator, the second chamber for accommodating the control device (inverter) for controlling the drive of the rotor, the partition wall separating the first chamber and the second chamber, and the partition wall are provided. Rotators are known that include an energizing body that is passed through a through hole.

For example, the rotating machine described in Patent Document 1 has two spaces in a case, and these two spaces are separated by a barrier (bulkhead). Although the names of the two spaces are not described in Patent Document 1, they are referred to as the first room and the second room for convenience. The rotor and stator are housed in the first chamber, and the control circuit of the control device is housed in the second room. A through hole is provided in the barrier, and an energizing body is passed through the through hole. The energizing body includes a cylindrical conductive member and a holding member that holds the conductive member, and plays a role of electrically connecting the control circuit and the stator. A sealing member is interposed between the outer peripheral surface of the conductive member of the current-carrying body and the inner peripheral surface of the through hole of the barrier to seal the two. The refrigerant that cools the rotating machine is stored in the space of the first chamber. According to Patent Document 1, in this rotary machine, by interposing a sealing member between the outer peripheral surface of the holding member and the inner peripheral surface of the through hole of the barrier, the refrigerant in the first chamber can be moved to the second chamber. It is said that it is possible to prevent leakage.

Patent No. 4036139

However, the rotating machine described in Patent Document 1 has a problem that it takes time and effort to set the energizing body in the through hole of the barrier. Specifically, as the sealing member, it is common to use an O-ring made of an elastic body. When the operator sets the energizing body with the O-ring attached to the outer peripheral surface of the holding member into the through hole of the barrier to set the energizing body on the barrier, the operator rubs the O-ring against the inner peripheral surface of the through hole of the barrier. It will be. Since a strong frictional resistance acts between the O-ring made of an elastic body and the inner peripheral surface of the barrier, the operator is forced to forcefully push the current-carrying body into the through hole, which requires time and effort. It is.

The present invention has been made in view of the above background, and an object of the present invention is to provide a rotating machine capable of facilitating the work of setting an energizing body on a partition wall (barrier).

One aspect of the present invention includes a first chamber for accommodating a rotor and a stator, a second chamber for accommodating a control device for controlling the drive of the rotor, and a partition wall separating the first chamber and the second chamber. A rotating machine including an energizing body passed through a through hole provided in the partition wall, and the energizing body includes a conductive member for energizing and an insulating holding member for holding the conductive member. The holding member is fixed to the side surface of the partition wall on the second chamber side, and a ring-shaped sealing member is interposed between the holding member and the side surface to be held by the holding member. The conductive member is a rotating machine that penetrates through the through hole of the partition wall.

According to the present invention, there is an excellent effect that the work of setting the energizing body on the partition wall can be facilitated.

It is an exploded perspective view which shows the motor which concerns on embodiment. It is a perspective view which shows the stator of the motor from the front side in the axial direction. It is a perspective view which shows the stator from the rear side in the axial direction. It is a perspective view which shows the stator core of the same stator, a crossover line, a resin mold, and a bus bar assembly. It is an exploded perspective view which shows the bus bar assembly of the motor. It is sectional drawing of the motor. It is sectional drawing which shows the bus bar assembly and its surroundings. It is a perspective view which shows the motor in the state which the drawing of the motor cover, the 2nd housing, and the terminal cover of a 1st housing is omitted.

Hereinafter, an embodiment of a motor as a rotating machine to which the present invention is applied will be described with reference to each figure. In each figure, the motor cover of the motor is not shown for convenience.

FIG. 1 is an exploded perspective view showing the motor 1 according to the embodiment. The motor 1 includes a first housing 2, a second housing 3, a shaft 9, a rotor (rotor) 10, a stator (stator) 20, an inverter cover 80, an electric oil pump 81, an oil relay tank 82, and the like.

The shaft-shaped shaft 9 penetrates the shaft hole provided in the center of the rotor core 11 of the cylindrical rotor 10 in the direction of the rotation axis A, and is located on the rotation axis A of the rotor 10. The shaft 9 is rotationally driven around the rotation axis A together with the rotor 10. Hereinafter, the extending direction of the rotation axis A and the direction parallel to the extending direction A are simply referred to as an axial direction.

Of both ends of the shaft 9 in the axial direction, the end on the drive output side (the end to which the motor gear or the like is fixed) protrudes from the end face of the rotor 10. Hereinafter, of both sides in the axial direction, the side that is the drive output side is referred to as the front side, and the opposite side is referred to as the rear side. The front side is an example of one side in the axial direction in the present invention, and the rear side is an example of the other side in the axial direction in the present invention.

In each figure, the X-axis, Y-axis, and Z-axis are shown as appropriate. The X-axis extends along the axial direction. An arrow is attached to the front side of the X-axis. The Y-axis extends along the lateral direction of the motor 1. The Z axis extends in a direction orthogonal to both the X and Y axes.

A motor cover (not shown) is bolted to the front end of the core accommodating portion 2a of the first housing 2. The motor cover is provided with a shaft hole, and the end portion of the shaft 9 on the drive output side is passed through the shaft hole to be exposed to the outside of the core accommodating portion 2a. Each of both ends in the axial direction of the cylindrical core accommodating portion 2a of the first housing 2 is provided with an opening. Of these openings, the opening on the front side is closed by the motor cover described above. Further, the opening on the rear side is closed by the second housing 3 described later.

The first housing 2 made of a cast product includes a core accommodating portion 2a, an oil pump accommodating portion 2b, and a terminal block accommodating portion 2c, and functions as a motor housing for accommodating the rotor 10 and the stator 20. The cylindrical core accommodating portion 2a accommodates the rotor 10 and the stator 20, and holds the cylindrical stator 20 on the inner peripheral surface. The oil pump accommodating portion 2b accommodates the electric oil pump 81. The terminal block accommodating portion 2c accommodates a terminal block for electrically connecting the stator 20 and an inverter described later.

The cylindrical rotor 10 is housed in the hollow of the stator 20 held on the inner peripheral surface of the core housing part 2a. The rotor 10 is a magnet-embedded type (IPM: embedded magnet type (IPM: Interior permanent Magnet) rotor, but may be a surface magnet type (SPM: Surface Permanent Magnet) rotor. May be a rotor without permanent magnets.

The second housing 3 made of a cast product is fixed to the rear end of the first housing 2 in the axial direction by bolts, and functions as a motor housing and an inverter housing. More specifically, the axial front region of the second housing 3 functions as a motor housing, and the axial rear region of the second housing 3 functions as an inverter housing for accommodating the inverters, both regions. Is separated by a partition wall. The axial rear end of the box-shaped second housing has a large opening through which the inverter is placed in the axial rear region of the second housing 3. The inverter cover 80 is bolted to the rear end of the second housing 3 in the axial direction. The above-mentioned large opening of the second housing 3 is closed by the inverter cover 80.

The oil relay tank 82 is separate from the first housing 2 and is bolted to the first housing 2. The oil relay tank 82 includes a suction pipe 82a and a discharge pipe 82b. An oil delivery pipe (not shown) extending from a cooler such as a radiator of an automobile is connected to the suction pipe 82a. An oil return pipe (not shown) extending to the cooler is connected to the discharge pipe 82b.

When the electric oil pump 81 operates, the oil that is the refrigerant for cooling the motor 1 is supplied to the above-mentioned cooler, the oil delivery pipe, the suction pipe 82a, the oil relay tank 82, and the inside of the motor housing of the motor 1. It circulates along a route that follows the oil relay tank 82 and the oil return pipe. This circulation cools the rotor 10 and the stator 20 in the motor housing.

Hereinafter, the direction along the circumferential direction centered on the rotation axis A is referred to as the circumferential direction. Further, the radial direction of the virtual circle centered on the rotation axis A is called the radial direction.

FIG. 2 is a perspective view showing the stator 20 from the front side in the axial direction. The stator 20 includes a cylindrical stator core 21 and a plurality of flat wire coils 22 as windings wound around the stator core 21 along the axial direction. A plurality of teeth (tooth portions) 21a extending in the axial direction are arranged on the inner peripheral surface of the stator core 21 in such a manner that they are arranged at predetermined intervals in the circumferential direction.

In the axial direction, each of the plurality of flat wire coils 22 is folded back in a region existing on the front side of the front end of the stator core 21 and extends toward the rear side, as shown in FIG.

FIG. 3 is a perspective view showing the stator 20 from the rear side in the axial direction. As shown in FIG. 3, the line ends on both sides of each of the plurality of flat wire coils 22 project from the rear end in the axial direction of the stator core 21 toward the rear side and are connected to each other by welding. At the time of welding, the enamel film of the flat wire coil 22 is peeled off and the lead wire is exposed, but the exposed portion is later painted with an insulating paint.

The stator 20 includes a plurality of U-phase flat wire coils 22, a plurality of V-phase flat wire coils 22, and a plurality of W-phase flat wire coils 22. The flat wire coils 22 for the same phase are connected by a connecting wire 26. The connecting wire 26 is connected to the flat wire coil 22 by welding.

The stator 20 includes a U-phase crossover 23U, a V-phase crossover 23V, and a W-phase crossover 23W. Each crossover (23U, 23V, 23W) extends in the circumferential direction. Then, the portion excluding one end portion and the other end portion in the extending direction is wrapped in the resin mold 24 as a molded body. The resin mold 24 is formed by molding an insulating resin into an arc shape by a mold.

One end of the U-phase crossover wire 23U in the extending direction is not wrapped by the resin mold 24, but is connected to the U-phase flat wire coil 22 by welding. Further, the other end of the U-phase crossover 23U in the extending direction is not wrapped by the resin mold 24, but is a terminal portion 23aU bent in the axial direction. Similar to the U-phase crossover 23V, the V-phase crossover 23V and the W-phase crossover 23W are also wrapped in the resin mold 24 in the extending direction except for both ends, and one end is flat. It is connected to the wire coil 22 and the other end is a terminal portion (23aV, 23aW). U-phase power is input to the U-phase terminal 23aU, V-phase power is input to the V-phase terminal 23aV, and W-phase power is input to the W-phase terminal 23aW. To.

FIG. 4 is a perspective view showing the stator core 21, the crossover, the resin mold 24, and the bus bar assembly 60. It is necessary to electrically connect an inverter to the terminals (23aU, 23aV, 23aW) of the crossovers for each phase. The bus bar assembly 60 plays a role of making the above-mentioned electrical connection, and includes a holding member 61 made of an insulating resin and three bus bars as conductive members. Of the three bus bars, the bus bar 62U energizes the U-phase power supply, the bus bar 62V energizes the V-phase power supply, and the bus bar 62W energizes the W-phase power supply.

Each terminal (23aU, 23aV, 23aW) of the crossover of the stator 20 is set on the installation surface of the terminal block 35. On the other hand, one end of each bus bar (62U, 62V, 62W) of the bus bar assembly 60 in the longitudinal direction is a terminal portion (62aU, 62aV, 62aW), and a crossover line set on the installation surface of the terminal block 35. It is superposed on each terminal (23aU, 23aV, 23aW) of.

FIG. 5 is an exploded perspective view showing the bus bar assembly 60. Since the terminal portion (62aU, 62aV, 62aW), which is one end of each bus bar (62U, 62V, 62W) of the bus bar assembly 60, has a flat plate shape, a crossover wire is provided on the terminal block 35 as shown in FIG. Goodly adheres to the terminal portions (23aU, 23aV, 23aW) of. As shown in FIG. 5, the shape of the other end of each bus bar (62U, 62V, 62W) in the longitudinal direction is cylindrical. Ring-shaped grooves (62bU, 62bV, 62bW) extending over the entire circumference are arranged on the outer peripheral surface of the other end of the columnar shape of each bus bar (62U, 62V, 62W) in the longitudinal direction of the bus bar. It is provided one by one. In the figure, for convenience, although not shown, an O-ring made of an elastic body is fitted in the groove (62bU, 62bV, 62bW). This O-ring is an example of the second seal member in the present invention.

The holding member 61 of the bus bar assembly 60 includes three through holes (61aU, 61aV, 61aW) extending in the longitudinal direction of the bus bar (62U, 62V, 62W). The other end of the columnar shape of the bus bar 62U is inserted into the through hole 61aU, the other end of the columnar shape of the bus bar 62V is inserted into the through hole 61aV, and the cylindrical end portion of the bus bar 62W is inserted into the through hole 61aW. The other end is inserted. By the above-mentioned insertion, the holding member 61 holds three bus bars (62U, 62V, 62W).

The holding member 61 includes two projecting portions 61b protruding from the outer peripheral surface, and each projecting portion 61b includes a bolt hole for passing a bolt. Further, the holding member 61 is provided with a ring-shaped groove 61a1 on the surface of the bus bar (62U, 62V, 62W) on the terminal portion (62aU, 62aV, 62aW) side. In the figure, for convenience, although not shown, an O-ring made of an elastic body is fitted into the groove 61a1. This O-ring is an example of the first sealing member in the present invention.

FIG. 6 is a cross-sectional view of the motor 1. The combination of the first housing 2 and the second housing 3 in the motor 1 includes a first chamber 51 and a second chamber 52 inside. The first chamber 51 includes a space inside the first housing 2 and a space on the front side region of the second housing 3 in the axial direction. Further, the second chamber 52 is composed of a space in a region on the rear side in the axial direction of the second housing 3. The first chamber 51 and the second chamber 52 are separated by a partition wall 3a which is a part of the second housing 3.

Although not shown in FIG. 6 because the rotor (10) and the stator core (21) are not present at the positions in the cross section of FIG. 6, the first chamber 51 has the rotor (10) and the stator (20). Contain. The second chamber 52 accommodates an inverter (control device). At the position of the cross section of FIG. 6, the cover member 32 of the IGBT (Insulated Gate Bipolar Transistor) unit of the inverter exists. Although not shown in FIG. 6 because the electronic substrate of the IGBT unit does not exist at the position of the cross section of FIG. 6, the IGBT unit includes an electronic substrate on which a plurality of IGBTs are mounted.

The bus bar 62W of the bus bar assembly 60 penetrates the through hole 3b provided in the partition wall 3a, the terminal portion 62aW is positioned in the first chamber 51, and the columnar end is located in the second chamber 52. That is, the terminal portion 62aW is the end portion on the first chamber 51 side, and the columnar end portion on the side opposite to the terminal portion 62aW is the end portion on the second chamber 52 side. The bus bar 62U and the bus bar 62V have the same configuration as the bus bar 62W.

FIG. 7 is a cross-sectional view showing the bus bar assembly 60 and its surroundings. FIG. 7 shows a vertical cross section of the position of the bus bar 62W on the bus bar assembly 60. The holding member 61 of the bus bar assembly 60 includes a small diameter portion 61c at the end of the bus bar (62U, 62V, 62W) on the terminal portion (62aU, 62aV, 62aW) side. The holding member 61 is bolted to the partition wall 3a in such a manner that the small diameter portion 61c is inserted into the through hole 3b of the partition wall 3a and the O-ring 63 is brought into close contact with the side surface of the partition wall 3a on the second chamber (52 in FIG. 6) side. It will be stopped. In FIG. 7, of the three bus bars (62U, 62V, 62W), only the bus bar 62W is shown, but each of the three bus bars (62U, 62V, 62W) penetrates the through hole 3b of the partition wall 3a. ..

The side surface of the partition wall 3a on the second chamber (52 in FIG. 6) side and the holding member 61 are sealed by an O-ring 63. This prevents oil from leaking into the second chamber in the first chamber (51 in FIG. 6). In such a configuration, when the bus bar assembly 60 is set on the partition wall 3a, the O-ring 63 is not rubbed against the inner wall of the through hole 3b and frictional resistance is not generated, so that the setting operation can be facilitated.

In the current-carrying body of the rotating machine described in Patent Document 1, the first to second chambers pass through a gap between the outer peripheral surface of the cylindrical conductive member and the inner peripheral surface of the through hole of the holding member that holds the conductive member. May cause refrigerant leakage to. On the other hand, in the motor 1 according to the embodiment, the space between the outer peripheral surface of the bus bar (62U, 62V, 62W) and the inner peripheral surface of the through hole (61aU, 61aV, 61aW in FIG. 5) of the holding member 61 is O-ring. It is sealed by a ring 64. This makes it possible to prevent oil leakage through the gap between the outer peripheral surface of the bus bar (62U, 62V, 62W) and the inner peripheral surface of the through hole (61aU, 61aV, 61aW in FIG. 5) of the holding member 61. Since the work of passing the bus bar (62U, 62V, 62W) through the through hole (61aU, 61aV, 61aW in FIG. 5) of the holding member 61 is performed outside the second housing 3, it is inside the second housing 3. It is easier than the work done.

As shown in FIG. 7, three O-rings 64 are fitted into the columnar end of the bus bar 62aW in such a manner that they are arranged along the longitudinal direction of the bus bar 62aW. The three O-rings 64 described above are individually fitted into each of the three grooves 62bW shown in FIG. According to this configuration, as compared with the configuration in which only one O-ring 64 is provided, the first chamber 51 to the first chamber 51 through the gap between the outer peripheral surface of the columnar end of the bus bar 62W and the through hole 61aW of the holding member 61. Oil leakage (refrigerant leakage) to the two chambers 52 can be prevented more reliably.

The columnar end of the bus bar 62W is provided with a screw hole 62cW on the end face, and one end of the flat bus bar 66W is connected by bolting (65) to the screw hole 62cW. In such a configuration, the flat plate-shaped bus bar 66W can be easily bolted to the columnar end of the bus bar 62W. The bus bar 62U and the bus bar 62V have the same configuration as the bus bar 62W.

FIG. 8 is a perspective view showing the motor 1 in a state where the motor cover, the second housing (3 in FIG. 1), and the terminal cover (79 in FIG. 1) of the first housing (2 in FIG. 1) are not shown. is there. The bus bar assembly 60 is arranged so that each of the bus bars (62U, 62V, 62W) is arranged in a direction (YZ direction) orthogonal to the rotation axis A of the rotor 10. In such a configuration, the three board terminals of the electronic board 31 of the inverter and the three terminal portions (23aU, 23aV, 23aW) of the stator 20 without crawling the flat bus bar (66U, 66V, 66W) in a complicated shape. And can be electrically connected.

The reason why it is not necessary to crawl the flat bus bar (66U, 66V, 66W) in a complicated shape will be explained below. The inverter of the motor 1 includes an IGBT (Insulated Gate Bipolar Transistor) unit 30. The IGBT unit 30 includes an electronic board 31 on which a plurality of IGBTs are mounted.

In a motor equipped with an inverter, such as motor 1, the following layout is generally adopted. That is, as shown in the drawing, the inverter including the IGBT unit 30 and the like is positioned on the rear side in the axial direction with respect to the rotor 10 and the stator 20, and the electronic substrate 31 of the inverter is oriented in the direction orthogonal to the axial direction (YZ). It is a layout that is arranged in a posture that follows the direction). The electronic board 31 arranged in the above-described posture has three board terminals (U-phase terminal, V-phase terminal, and W-phase terminal) for power output (not shown) at different positions (Y-) on the board surface. Prepare for different positions on the Z plane). Of the above-mentioned three substrate terminals on the electronic substrate 31, the end portion of the flat plate-shaped bus bar 66W is connected to the substrate terminal for the U phase. Further, the end portion of the flat plate-shaped bus bar 66V is connected to the substrate terminal for the V phase. Further, the end portion of the flat plate-shaped bus bar 66W is connected to the substrate terminal for the W phase.

As described above, the three bus bars (62U, 62V, 62W) of the bus bar assembly 60 are arranged in a direction orthogonal to the axial direction (YZ direction). Further, the three substrate terminals of the electronic substrate 31 are arranged at different positions on the substrate surface and are arranged in a direction orthogonal to the axial direction (YZ direction). That is, the bus bar (62U, 62V, 62W) and the three board terminals of the electronic board 31 are all arranged in a direction orthogonal to the axial direction. In such a configuration, as shown in FIG. 8, the three terminal portions (23aU, 23aV, 23aW) of the stator 20 and the electronic substrate do not crawl around the flat bus bar (66U, 66V, 66W) in a complicated shape. The three board terminals of 31 can be electrically connected.

Although the example in which the present invention is applied to the motor 1 as a rotating machine has been described, the present invention can also be applied to a generator (dynamo) as a rotating machine.

The present invention is not limited to the above-described embodiment, and a configuration different from the embodiment may be adopted within the range to which the configuration of the present invention can be applied. The present invention exerts a peculiar action and effect for each aspect described below.

[First aspect]
In the first aspect, a first chamber (for example, a first chamber 51) accommodating a rotor (for example, a rotor 10) and a stator (for example, a stator 20) and a control device (for example, an inverter) for controlling the drive of the rotor are accommodated. Energization passed through two chambers (for example, the second chamber 52), a partition wall separating the first chamber and the second chamber (for example, a partition wall 3a), and a through hole provided in the partition wall (for example, a through hole 3b). A body (for example, a bus bar assembly 60) is provided, and the energizing body includes a conductive member (for example,

bus bar

62U, 62V, 62W) for energizing and an insulating holding member (for example, a holding member) for holding the conductive member. In a rotary machine (for example, a motor 1) including 61), the holding member is fixed to the side surface of the partition wall on the second chamber side, and a ring-shaped seal is provided between the holding member and the side surface. A rotary machine in which a member (for example, an O-ring 63) is interposed, and the conductive member held by the holding member penetrates a through hole of the partition wall.

According to this configuration, when the energizing body is set on the partition wall, the ring-shaped sealing member is not rubbed against the inner wall of the through hole, and frictional resistance is not generated, so that the setting work can be facilitated.

[Second aspect]
The second aspect has the configuration of the first aspect, and in addition to the first seal member as the seal member, a ring-shaped second seal member (for example, an O-ring 64) is provided, and the holding member is the conductive member. The shape of the end portion of the member on the second chamber side is columnar, and the end portion has a groove (for example, 62bU, 62bV, 62bW) extending over the entire circumference of the peripheral surface, and the groove has a groove. The second seal member is fitted, the end portion is passed through a through hole provided in the holding member in a manner extending along the longitudinal direction of the conductive member, and the second seal member is the conductive member. It is a rotating machine that seals between a member and an inner peripheral surface of a through hole of the holding member.

With such a configuration, it is possible to prevent the refrigerant from leaking from the first chamber to the second chamber through the gap between the outer peripheral surface of the conductive member and the through hole of the holding member.

[Third aspect]
A third aspect is a rotary machine comprising the configuration of the second aspect, wherein the end portion of the conductive member is provided with a plurality of grooves, and the second seal member is individually fitted into each of the plurality of grooves. is there.

In such a configuration, as compared with a configuration in which the conductive member is provided with only one combination of a groove and a second seal member, the first chamber to the first chamber to the first through a gap between the outer peripheral surface of the conductive member and the through hole of the holding member. Refrigerant leakage to the two chambers can be prevented more reliably.

[Fourth aspect]
The fourth aspect is a rotary machine having any of the configurations of the first aspect to the third aspect, and the shape of the end portion of the conductive member on the first chamber side is a flat plate.

In such a configuration, the flat end of the conductive member and the terminal of the crossover of the stator can be brought into close contact with each other on a flat surface, and the generation of electric discharge between the two can be suppressed.

[Fifth aspect]
The fifth aspect includes any of the configurations of the first aspect to the fourth aspect, and the columnar end portion of the conductive member on the second chamber side is provided with a screw hole (for example, a screw hole 62 cW) on the end surface. , A rotating machine.

In such a configuration, the flat plate-shaped bus bar can be easily bolted (or screwed) to the columnar end of the conductive member.

[Sixth aspect]
The sixth aspect is a rotating machine having the configuration of the third aspect, in which the energizing body is arranged in a posture in which each of the plurality of the conductive members is arranged in a direction orthogonal to the rotation axis of the rotor. ..

In such a configuration, the substrate terminal of the electronic board of the inverter and the terminal portion of the crossover of the stator (23aU, 23aV, 23aW) can be electrically connected without crawling the flat plate-shaped bus bar in a complicated shape.

The present invention claims priority based on Japanese Patent Application No. 2019-173961, which is a Japanese patent application filed on September 25, 2019, and incorporates all the contents described in the Japanese patent application.

1: Motor (rotator), 2: 1st housing, 3: 2nd housing, 3a: partition, 3b: through hole, 9: shaft, 10: rotor, 21; stator core, 22: flat wire coil (winding) , 23U: U-phase crossover, 23V: V-phase crossover, 23W: W-phase crossover, 24: Resin mold (molded body), 51: 1st chamber, 52: 2nd chamber, 60 : Bus bar assembly (energized body), 61: Holding member, 61aU to W: Through hole, 62U to W: Bus bar (conductive member), 62bU to W: Groove, 62cW: Screw hole,
63: O-ring (first seal member), 64: O-ring (second seal member), A: rotating axis

Claims

A first chamber accommodating a rotor and a stator, a second chamber accommodating a control device for controlling the drive of the rotor, a partition wall separating the first chamber and the second chamber, and a partition wall provided on the partition wall. Equipped with an energizing body passed through the through hole,
The energizing body is a rotating machine including a conductive member for energizing and an insulating holding member for holding the conductive member.
The holding member is fixed to the side surface of the partition wall on the second chamber side.
A sealing member is interposed between the holding member and the side surface,
The conductive member held by the holding member penetrates the through hole of the partition wall.
Rotating machine.
In addition to the first seal member as the seal member, a ring-shaped second seal member is provided.
The shape of the end portion of the conductive member on the second chamber side is cylindrical.
The end has a groove extending over the entire circumference of the peripheral surface.
The second seal member is fitted into the groove,
The end portion is passed through a through hole provided in the holding member in a manner extending along the longitudinal direction of the conductive member.
The second sealing member seals between the conductive member and the inner peripheral surface of the through hole provided in the holding member.
The rotating machine according to claim 1.
The end portion of the conductive member includes a plurality of the grooves.
The second seal member is individually fitted into each of the plurality of grooves.
The rotating machine according to claim 2.
The shape of the end portion of the conductive member on the first chamber side is a flat plate.
The rotating machine according to any one of claims 1 to 3.
The columnar end on the second chamber side of the conductive member has a screw hole on the end face.
The rotating machine according to any one of claims 1 to 4.
The energizing body is arranged in a posture in which each of the plurality of conductive members is arranged in a direction orthogonal to the rotation axis of the rotor.
The rotating machine according to claim 3.