Connection module in rotary electric machine

Abstract

To make a structure for drawing out a coil wire in a rotary electric machine to a difference place more compact.SOLUTION: A connection module 50 in a rotary electric machine is a connection module in the rotary electric machine including an armature and a case for storing the armature, and includes a conductive component 52 including a first end part 54, a second end part 56, and an intermediate part 58 which is positioned between the first end part and the second end part and penetrates a through hole of the case, and a housing 60 for covering the conductive component. A coupling hole 54h is opened to an end face 54f on an opposite side of the intermediate part in the first end part, and the housing covers the conductive component in a state in which at least an end face of the first end part and at least a part of the second end part are exposed.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present disclosure relates to a connection module in a rotating electric machine. [Background technology]

[0002] Patent Document 1 discloses a terminal block including a metal plate and a plurality of terminal units held by the plate.

[0003] The terminal unit includes a resin housing and a terminal fitting that is held by the housing while passing through an opening in a plate. The terminal fitting is plate-shaped and has bolt insertion holes formed at both ends thereof that pass through the plate in the thickness direction.

[0004] The terminal units are spaced apart from one another and are integrated together via a plate, and the terminal block is fixed to the case by the plate. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent Publication No. 2021-157923 Summary of the Invention [Problem to be solved by the invention]

[0006] There is a demand for a more compact configuration for leading out the coil wires inside a rotating electric machine to a different location.

[0007] Therefore, an object of the present disclosure is to provide a more compact configuration for leading out a coil wire within a rotating electric machine to another location. [Means for solving the problem]

[0008] The connection module in a rotating electric machine of the present disclosure is a connection module in a rotating electric machine that includes an armature and a case that houses the armature, and includes a conductive part including a first end, a second end, and an intermediate part located between the first end and the second end and passing through a through hole of the case, and a housing that covers the conductive part, wherein a fastening hole is opened in the end face of the first end opposite the intermediate part, and the housing covers the conductive part while leaving at least the end face of the first end and at least a portion of the second end exposed.

[0009] In addition, the connection module in a rotating electric machine of the present disclosure is a connection module in a rotating electric machine that includes an armature and a case that houses the armature, and includes a conductive part including a first end, a second end, and an intermediate part located between the first end and the second end and passing through a through hole of the case, and a housing that covers the conductive part, wherein the housing covers the conductive part while leaving at least a portion of the first end and at least a portion of the second end exposed, and the housing is a part that is passed through and held in the through hole. Effect of the Invention

[0010] According to the present disclosure, the configuration for extracting the coil wire within a rotating electric machine to another location can be made more compact. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a perspective view showing an integrated mechanical and electrical unit according to an embodiment. [Diagram 2] FIG. 2 is a partial perspective view showing the electromechanical integrated unit. [Diagram 3] FIG. 3 is a partial cross-sectional view taken along line III-III in FIG. [Figure 4] FIG. 4 is a perspective view showing a connection module. [Diagram 5] FIG. 5 is an exploded perspective view showing the connection module. [Figure 6] FIG. 6 is a perspective view showing a connection module according to a first modified example. [Figure 7] FIG. 7 is a side view showing a connection module according to a second modified example. [Figure 8] FIG. 8 is a perspective view showing a connection module according to a third modified example. [Figure 9] FIG. 9 is a perspective view showing a connection module according to a fourth modified example. [Figure 10] FIG. 10 is a side view showing a connection module according to the fourth modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] [Description of the embodiments of the present disclosure] First, the embodiments of the present disclosure will be listed and described.

[0013] The connection module in the rotating electric machine of the present disclosure is as follows.

[0014] (1) A connection module in a rotating electric machine having an armature and a case that houses the armature, the connection module comprising: a conductive part including a first end, a second end, and an intermediate part located between the first end and the second end and passing through a through hole of the case; and a housing that covers the conductive part, wherein a fastening hole is opened in an end face of the first end opposite the intermediate part, and the housing covers the conductive part while exposing at least the end face of the first end and at least a portion of the second end.

[0015] According to this connection module, the part to be connected can be connected to the connection module by contacting the part to be connected with the end face of the first end and passing a fastener through the part to be connected and fastening it to the fastening hole. This makes it possible to make the connection structure between the part to be connected and the first end compact, and to make the configuration for drawing out the coil wire in the rotating electric machine to another location more compact.

[0016] (2) In the connection module for the rotating electric machine of (1), the housing may be a portion that is passed through and held by the through hole.

[0017] As a result, the housing is passed through and held in the through hole of the case, making it possible to reduce the size of the connection module in the rotating electric machine.

[0018] (3) In the connection module for the rotating electric machine of (2), the housing may have a positioning protrusion that contacts the case so as to be positioned in a penetrating direction of the through hole.

[0019] This allows the connection module to be positioned relative to the through hole by the structure of the housing itself, making it possible to make the configuration compact.

[0020] (4) A connection module in a rotating electric machine of any one of (1) to (3), wherein the housing includes a peripheral wall portion surrounding the end face of the first end portion with the end face exposed, and the peripheral wall portion may have a recess that is partially recessed in the circumferential direction.

[0021] This allows the part to be connected to be pulled out of the first end portion through the recess while in contact with the end face, and the direction in which the part to be connected extends relative to the first end portion is stable when the part to be connected is fastened to the end face of the first end portion.

[0022] (5) A connection module in any one of rotating electric machines (1) to (4), wherein an opposite side fastening hole is opened in an opposite side end face of the second end opposite the intermediate portion, and the housing may cover the conductive part while exposing at least the opposite side end face of the second end.

[0023] This allows the other part to be connected to be connected to the connection module by contacting the other part to be connected to the opposite end face of the second end and passing a fastener through the other part to be connected to the opposite fastening hole, thereby making it possible to make the connection structure between the other part to be connected and the second end more compact and to make the configuration for drawing out the coil wire in the rotating electric machine to another location more compact.

[0024] (6) A connection module in any one of the rotating electric machines of (1) to (5), wherein a fastening plane is formed on a portion of the periphery of the second end, an opposite-side fastening hole is opened in the fastening plane, and the housing may cover the conductive part while exposing at least the fastening plane of the second end.

[0025] As a result, the other connection target component can be connected to the connection module by contacting the other connection target component with the fastening flat surface of the second end and passing a fastener through the other connection target component and fastening it to the opposite fastening hole. As a result, the connection target component and the other connection target component can be connected to each other via the conductive component by making the fastening directions of the connection target component and the other connection target component different.

[0026] (7) In the connection module for the rotating electric machine of (6), the housing may include a receiving portion that covers a periphery of the second end portion and a portion opposite the fastening plane.

[0027] As a result, even if a foreign object is generated when the fastener is fastened into the opposite-side fastening hole, the foreign object can be received by the receiving portion.

[0028] (8) A connection module in a rotating electric machine of any one of (1) to (7), wherein the first end is located within a space in the case that accommodates the armature, and further includes an armature-side connection target component fastened to the first end in a state in contact with an end face of the first end, the armature-side connection target component being a component extending from the first end located on the outer periphery of the armature toward the inside of the armature, and the conductive component may penetrate the case along the direction of the rotational axis of the rotating electric machine.

[0029] As a result, the conductive part penetrates the case along the rotation axis direction of the rotating electric machine, and the space around the armature can be easily partitioned in the direction of the rotation axis for effective use. In this case, the armature-side connection target component can be easily connected in a compact configuration to the first end of the conductive part located inside the case.

[0030] The connection module in the rotating electric machine of the present disclosure is as follows.

[0031] (9) A connection module in a rotating electric machine having an armature and a case that houses the armature, the connection module comprising: a conductive part including a first end, a second end, and an intermediate part located between the first end and the second end and passing through a through hole of the case; and a housing that covers the conductive part, the housing covering the conductive part while leaving at least a portion of the first end and at least a portion of the second end exposed, the housing being a part that is passed through and held in the through hole.

[0032] This allows the coil wire in the rotating electric machine to be pulled out to another location by utilizing the portions of the first end and the second end exposed from the housing. Since the housing is passed through and held in the through hole of the case, the connecting module in the rotating electric machine can be made smaller.

[0033] (10) In the connection module for the rotating electric machine of (9), the housing may have a positioning protrusion that contacts the case so as to be positioned in a penetrating direction of the through hole.

[0034] In this case, the connection module can be positioned relative to the through hole by the structure of the housing itself, making it possible to make the configuration compact.

[0035] [Details of the embodiment of the present disclosure] Specific examples of the connection module in the rotating electric machine of the present disclosure will be described below with reference to the drawings. Note that the present disclosure is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope of the claims.

[0036] [Embodiment] Hereinafter, a connection module in a rotating electrical machine according to an embodiment will be described. In this embodiment, an example in which the connection module is incorporated in an electromechanical integrated unit will be described.

[0037] <Overall composition> For convenience of explanation, the overall configuration of the electromechanical integrated unit will be described. Fig. 1 is a perspective view showing the electromechanical integrated unit 20. Fig. 2 is a partial perspective view showing the electromechanical integrated unit 20. Fig. 3 is a partial cross-sectional view taken along line III-III in Fig. 2.

[0038] The rotating electric machine 40 includes a case 30, an armature 42, and a field magnet 48. The rotating electric machine 40 may be an electric motor or a generator.

[0039] The case 30 includes a cylindrical case main body 32 having a bottom and a lid portion 36. An armature 42 serving as a stator is housed within the cylindrical case main body 32. A field magnet 48 is disposed within the armature 42 as a rotor. The field magnet 48 rotates due to a magnetic field generated by the armature 42, or the armature 42 generates an electromotive force due to the rotation of the field magnet 48. A rotating shaft 49 is connected to the field magnet 48, and the rotational driving force of the rotating electric machine 40 is output via the rotating shaft 49, and external rotational motion is input via the rotating shaft 49. The central axis of the field magnet 48 and the rotating shaft 49 is the rotation axis X.

[0040] The cylindrical case body 32 has a partial partition 33 located partially around the outer periphery of the armature 42. The partial partition 33 is located on the inner side of the cylindrical case body 32 relative to the opening 32h, and is perpendicular to the rotation axis X. A partition side wall 34 extends from the periphery of the partial partition 33 toward the inner side of the cylindrical case body 32. As a result, the space of the cylindrical case body 32 that houses the armature 42 and the field magnet 48 and the space on the inner side of the cylindrical case body 32 relative to the partial partition 33 are partitioned by the partial partition 33 and the partition side wall 34. The opening 32h is closed by the lid portion 31.

[0041] An expansion space forming portion 35 is formed on a part of the outer periphery of the cylindrical case main body 32. The expansion space forming portion 35 is formed in a rectangular parallelepiped case shape surrounded by four side walls. An opening of the expansion space forming portion 35 on the opposite side to the cylindrical case main body 32 is closed by a lid portion 36.

[0042] The space within the expansion space forming portion 35 is continuous with the space surrounded by the partial partition 33 and the partition side wall 34. Therefore, the space within the expansion space forming portion 35 and the space 33S surrounded by the partial partition 33 and the partition side wall 34 can be used as one continuous space for accommodating components. For example, the space within the expansion space forming portion 35 and the space 33S surrounded by the partial partition 33 and the partition side wall 34 can be used as a space for accommodating the control board 26 including an inverter control circuit in which a circuit for driving and controlling the rotating electric machine 40 is formed (see FIG. 3).

[0043] The armature 42 housed in the case 30 includes a coil wire 46a. The coil wire 46a is a linear conductive member made of copper wire or the like. The coil wire 46a may be wound around an armature core. A relay connection member 47 is connected to the coil wire 46a. The relay connection member 47 is a wiring for drawing the coil wire 46a out of the armature 42. The relay connection member 47 may be a bus bar made of copper or the like, an electric wire in which a core wire including one or more strands is covered with insulating resin, or a braided wire made of braided metal wires. In the present embodiment, an example in which the relay connection member 47 is a bus bar made of copper or the like will be described.

[0044] More specifically, the relay connection member 47 is an elongated metal plate member. One end of the relay connection member 47 is connected to an end of the coil wire 46a by welding, crimping, or the like. The relay connection member 47 is drawn out from the end of the coil wire 46a to the radial outside of the armature 42 in a direction intersecting (for example, a direction perpendicular to) the rotation axis X. A screw insertion hole 47h is formed in the other end of the relay connection member 47. For example, the other end of the relay connection member 47 is shaped to include a disk-shaped portion 47a having the screw insertion hole 47h and an extension portion 47b extending from a circumferential portion of the disk-shaped portion 47a toward the coil wire 46a.

[0045] In this embodiment, relay connection members 47 corresponding to three phases, namely, U-phase, V-phase, and W-phase, extend outward from the armature 42. The relay connection members 47 extend in the cylindrical case main body 32 toward the side adjacent to the partial partition 33 in the direction of the rotation axis X.

[0046] An external bus bar terminal 27 extends as an external wiring from the control board 26 accommodated in the space 33S. The external bus bar terminal 27 is a bus bar formed of a metal plate such as copper. A screw insertion hole is formed in the external bus bar terminal 27. Three external bus bar terminals 27 may be provided corresponding to the three phases. The external bus bar terminals 27 extend in the space 33S toward the adjacent partial partition 33 in the direction of the rotation axis X.

[0047] That is, in this embodiment, the partial partition 33 is disposed between the relay connection member 47 and the external bus bar terminal 27. The relay connection member 47 intersects (here, perpendicular to) the rotation axis X, and the external bus bar terminal 27 is parallel to the rotation axis X and intersects (here, perpendicular to) the relay connection member 47.

[0048] The connection module 50 is a connection module 50 in a rotating electric machine 40 including an armature 42 and a component 30 that houses the armature 42. In this embodiment, the components to be connected are an intermediate connection member 47 and an external bus bar terminal 27. In particular, the intermediate connection member 47 is an example of an armature-side component to be connected.

[0049] A through hole 33h is formed in the partial partition 33 of the case 30, penetrating in the thickness direction thereof. The through hole 33h may have a shape in which the same diameter is continuous in the penetrating direction, or may have a shape in which the diameter changes in a tapered or stepped shape. The connection module is held through the through hole 33h, so that the connection module can be exposed to both the space 32S that houses the armature 42 in the case 30 and the space 33S that houses the control board 26, and the relay connection member 47 and the external bus bar terminal 27 can be electrically connected to each other.

[0050] <About the connection module> The connection module 50 will now be described. Fig. 4 is a perspective view showing the connection module 50, and Fig. 5 is an exploded perspective view showing the connection module 50.

[0051] The connection module 50 includes a conductive part 52 and a housing 60 .

[0052] The conductive part 52 includes a first end 54, a second end 56, and an intermediate part 58 located between the first end 54 and the second end 56. The intermediate part 58 passes through the through hole 33h, so that at least a part of the first end 54 is exposed in the space 32S and at least a part of the second end 56 is exposed in the space 33S. The conductive part 52 may be formed, for example, by cutting, machining, or pressing a metal round bar-shaped base material. The conductive part 52 is formed, for example, from copper or aluminum.

[0053] The first end 54 is a portion that is connected to the intermediate connection member 47 as a component to be connected. In this embodiment, a fastening hole 54h is opened in an end face 54f of the first end 54 opposite to the intermediate portion 58. The fastening hole 54h is a hole into which a fastener is fastened. In this embodiment, it is assumed that the fastener is a screw S, and the fastening hole 54h is a screw hole having a thread formed on the inner circumferential surface. The fastening hole 54h is a bottomed screw hole that extends from the end face 54f of the first end 54 toward the intermediate portion 58. The fastening hole 54h may penetrate to the second end 56 side.

[0054] In this embodiment, the first end 54 and the intermediate portion 58 are formed in a cylindrical shape. The central axis of the first end 54 and the central axis of the fastening hole 54h may coincide with each other. The portion of the conductive part 52 where the fastening hole 54h is formed in the extending direction of the first end 54 may be regarded as the first end 54.

[0055] A fastening plane 56fa is formed on a part of the periphery of the second end 56. In this embodiment, the fastening plane 56fa is perpendicular to the opposite end face 56fb of the second end 56 opposite the intermediate portion 58, and is parallel to the central axis of the conductive part 52. The fastening plane 56fa may be formed, for example, by cutting or pressing. The fastening plane may be oblique to the end face of the second end 56 opposite the intermediate portion 58, and may be non-parallel to the central axis of the conductive part 52. The first end and the intermediate portion may be formed in a square bar shape.

[0056] The opposite side fastening hole 56h opens in the fastening plane 56fa. The opposite side fastening hole 56h faces from the fastening plane 56fa toward the side of the second end 56 opposite to the fastening plane 56fa. The opposite side fastening hole 56h may be a hole extending in a direction intersecting (for example, perpendicular to) the fastening hole 54h. The opposite side fastening hole 56h may be a bottomed hole or may be a hole penetrating the second end 56. A screw groove is formed on the inner peripheral surface of the opposite side fastening hole 56h. In this embodiment, the opposite side fastening hole 56h is described assuming that it is a hole penetrating the second end 56.

[0057] In the extending direction of the second end 56 of the conductive part 52, a portion where the fastening plane 56fa is formed may be understood to be the second end.

[0058] The housing 60 is an insulating part that covers the conductive part 52. The housing 60 is, for example, a resin part. The housing 60 may be a part molded with the conductive part 52 as an insert part. The housing 60 may be a resin part molded separately from the conductive part 52, and the conductive part 52 may be inserted or otherwise incorporated into the resin part. The conductive part 52 may be a single part, or may be an assembled part of multiple parts. The housing 60 insulates the case 30 and the conductive part 52. An adhesive for waterproofing may be interposed at the boundary between the conductive part 52 and the housing 60.

[0059] The housing 60 covers the conductive component 52 while leaving at least the end surface 54f of the first end 54 and at least a part of the second end 56 exposed. The housing 60 may cover the entire intermediate portion 58 or may cover a part of the intermediate portion 58. In this embodiment, the portion of the housing 60 covering the intermediate portion 58 is formed in a cylindrical shape.

[0060] At least a portion of the housing 60 is a portion that is passed through and held in the through hole 33h. For example, the outer diameter of the portion of the housing 60 that covers the intermediate portion 58 is set to be the same as the inner diameter of the through hole 33h to such an extent that the portion fits in the through hole 33h without any rattle.

[0061] The housing 60 has a positioning protrusion 61 that contacts the case 30 so as to position the housing 60 in the penetrating direction of the through hole 33h. The positioning here only needs to be performed in at least one direction in the penetrating direction of the through hole 33h. In this embodiment, the positioning protrusion 61 is formed in an annular convex shape formed at a position near the first end 54 on the outer periphery of the housing 60. When the housing 60 is inserted into the through hole 33h from the space 32S side on the armature 42 side, the positioning protrusion 61 contacts the opening edge of the through hole 33h on the space 32S side. As a result, the housing 60 is positioned on one side in the penetrating direction of the through hole 33h.

[0062] The positioning protrusion may have a partial protruding shape in the circumferential direction of the housing 60. The positioning protrusion of the housing may be positioned in the penetrating direction of the through hole 33h by contacting a step formed midway in the penetrating direction of the through hole 33h.

[0063] The housing 60 may have a protrusion that contacts the opening edge of the space 33S on the control board 26 side in the penetrating direction of the through hole 33h. In this case, the part of the housing where the protrusion is formed may be configured to be press-fitted into the through hole 33h.

[0064] A circumferential groove 60g is formed in a portion of the housing 60 that is disposed within the through hole 33h. An annular elastic ring 68 is fitted onto the circumferential groove 60g. The annular elastic ring 68 is, for example, an O-ring made of rubber or the like. With the housing 60 inserted into the through hole 33h, the annular elastic ring 68 is interposed in a compressed state between the housing 60 and the inner peripheral surface of the through hole 33h. This prevents the intrusion or leakage of liquid or fluid that has passed between the housing 60 and the inner peripheral surface of the through hole 33h.

[0065] The housing 60 covers a portion extending from the entire intermediate portion 58 to the outer circumferential surface of the first end portion 54, and an end face 54f of the first end portion 54 is exposed at one end of the housing 60. Note that the entire end face 54f does not need to be exposed, and for example, the outer circumferential edge of the end face 54f may be covered by a peripheral wall portion 62 described later. The relay connection member 47 can come into surface contact with the end face 54f.

[0066] The housing 60 includes a peripheral wall portion 62 that surrounds the end face 54f of the first end portion 54 with the end face 54f exposed. The peripheral wall portion 62 is an annular portion that protrudes beyond the end face 54f. The disk-shaped portion 47a of the end of the relay connection member 47 can be disposed within the peripheral wall portion 62.

[0067] A recess 62g is formed in the peripheral wall 62, which is partially recessed in the peripheral direction. The bottom of the recess 62g is recessed further than the end face 54f. In other words, in the extending direction of the first end 54, the bottom of the recess 62g is located closer to the intermediate portion 58 than the end face 54f. Therefore, in a state where the disk-shaped portion 47a is in surface contact with the end face 54f, the extension portion 47b extending from the disk-shaped portion 47a can be drawn out to the outside of the peripheral wall 62 via the recess 62g. The width of the recess 62g may be the same as the width of the extension portion 47b to an extent that the extension portion 47b can be accommodated without rattling.

[0068] The peripheral wall 62 may be formed in a shape that can prevent rotation of the end of the relay connection member according to the shape of the end of the relay connection member. For example, if the end of the relay connection member is rectangular, the peripheral wall may be shaped such that three sides are surrounded by straight walls so as to accommodate the rectangular portion in a non-rotating state.

[0069] The housing 60 covers the conductive part 52 with at least a portion of the second end 56 exposed. In this embodiment, the housing 60 includes a receiving portion 64 that covers a portion of the periphery of the second end 56 opposite the fastening plane 56fa. Thus, the housing 60 covers the conductive part 52 with the fastening plane 56fa of the second end 56 exposed.

[0070] The receiving portion 64 is, for example, a semi-cylindrical portion. The receiving portion 64 can close the rear opening of the opposite side fastening hole 56h on the opposite side to the fastening flat surface 56fa. This makes it difficult for foreign matter generated in the opposite side fastening hole 56h to fall out of the rear opening of the opposite side fastening hole 56h.

[0071] In this embodiment, an opposite end surface 56fb of the second end portion 56 is exposed from the housing 60. The housing may cover the opposite end surface 56fb.

[0072] The receiving portion 64 may be omitted.

[0073] <Connection structure using connection modules> As described above, the connection module 50 is passed through and held in the through hole 33h of the partial partition 33. Since the through hole 33h is aligned along the direction of the rotation axis X, the conductive part 52 passes through the partial partition 33 of the case 30 along the direction of the rotation axis X.

[0074] In this state, the first end 54 is located within the space 32S that houses the armature 42. The second end 56 is located within the space 33S that houses the control board 26.

[0075] The disk-shaped portion 47a at the end of the relay connection member 47, which is the armature-side connection target component, contacts the end face 54f of the second end 56 at a position surrounded by the peripheral wall portion 62. Also, the extension portion 47b extending from the disk-shaped portion 47a passes through the recess 62g of the peripheral wall portion 62 and is drawn out to the outside of the peripheral wall portion 62. In this state, the screw S is inserted into the screw insertion hole 47h of the disk-shaped portion 47a and is fastened and fixed to the fastening hole 54h. When the screw S is rotated for fastening, a force that rotates with the disk-shaped portion 47a acts on the disk-shaped portion 47a. However, since the extension portion 47b is disposed in the recess 62g, the rotation of the disk-shaped portion 47a is suppressed. As a result, the extension direction of the relay connection member 47 with respect to the first end 54 is restricted to a certain direction.

[0076] The relay connection member 47 is connected to the coil wire 46a from a first end 54 located on the outer periphery side of the armature 42 toward the inside of the armature 42.

[0077] Further, the control board 26 is housed in the space 33S, and the external bus bar terminal 27 extends from the control board 26. With the external bus bar terminal 27 disposed so as to be in surface contact with the fastening flat surface 56fa, the screw S is inserted through a screw insertion hole formed in the external bus bar terminal 27, and is fastened and fixed to the opposite side fastening hole 56h.

[0078] As a result, the coil wire 46 a is electrically connected to the control board 26 via the relay connection member 47 and the connection module 50 .

[0079] <Effects, etc.> According to the connection module 50 configured as described above, the opposite side fastening hole 56h is opened in the end face 54f of the first end 54 opposite to the intermediate portion 58, and the housing 60 covers the conductive part 52 with at least the end face 54f of the first end 54 and at least a part of the second end 56 exposed. Therefore, the relay connection member 47 can be connected to the connection module 50 by contacting the end face 54f of the first end 54 and passing the screw S as a fastener through the screw insertion hole 47h of the relay connection member 47 and fastening it to the opposite side fastening hole 56h. This allows the connection structure between the relay connection member 47 and the first end 54 to be made compact, and the configuration for drawing the coil wire 46a in the rotating electric machine 40 to another location to be made more compact.

[0080] Let us assume that the conductive parts of the connection module are formed by processing a plate material. In this case, in order to connect the conductive parts to the relay connection member 47 extending in a direction perpendicular to the conductive parts, it is possible to bend the conductive parts into an L-shape and fix a fastening nut to the end of the bent part. In this case, the end bent into an L-shape expands in a direction perpendicular to the middle part of the conductive parts, so that the connection structure with the conductive parts may become large. In addition, since it is only necessary to form a screw groove on the inner peripheral surface of the fastening hole 54h, there is no need to add a nut, and from this point of view, it is possible to reduce the number of parts. As a result, it is also possible to reduce costs.

[0081] In this embodiment, the first end 54 for fastening can be disposed on the extension of the intermediate portion 58, so the first end 54 is unlikely to spread out to a position far removed from the extension of the intermediate portion 58. In addition, there is no need to attach a separate nut for fastening. This allows the connection structure between the relay connection member 47 and the connection module 50 to be made more compact.

[0082] In addition, since the housing 60 is a portion that is passed through and held within the through-hole 33h, the connection module 50 can be fixed to the case 30 in a compact configuration. For example, a separate bracket for screw fixing can be unnecessary to fix the housing 60 to the case 30. Therefore, the fixing structure of the connection module 50 can be made smaller by the amount that the fixing bracket can be omitted.

[0083] Furthermore, since the housing 60 has the positioning protrusions 61, the connection module 50 can be positioned relative to the through-hole 33h by the structure of the housing 60 itself, making it possible to make the configuration for fixing the connection module 50 to the case 30 compact.

[0084] The connection module 50 may be supported so as to be held in a fixed position by fixing the first end 54 or the second end 56 to a connection target component that is arranged in a fixed position.

[0085] Moreover, the housing 60 has a peripheral wall 62 surrounding the end face 54f, and a recess 62g is formed in the peripheral wall 62. Therefore, with the disk-shaped portion 47a of the relay connection member 47 in contact with the end face 54f inside the peripheral wall 62, the extension portion 47b can be drawn out to the outside of the peripheral wall 62 via the recess 62g. Since the extension portion 47b is located inside the recess 62g, the relay connection member 47 is unlikely to rotate around the first end 54 during the fastening and fixing operation of the screw S, etc. This stabilizes the extending direction of the relay connection member 47 relative to the first end 54 when the relay connection member 47 is fastened to the end face of the first end 54.

[0086] A fastening plane 56fa is formed on a part of the periphery of the second end 56, and an opposite-side fastening hole 56h is opened in the fastening plane 56fa. The housing 60 covers the conductive part 52 with the fastening plane 56fa of the second end 56 exposed. Therefore, the external bus bar terminal 27, which is another connection target part, is brought into contact with the fastening plane 56fa of the second end 56, and a screw S is passed through the external bus bar terminal 27 and fastened to the opposite-side fastening hole 56h, so that the external bus bar terminal 27 can be connected to the connection module 50. This allows the relay connection member 47 and the external bus bar terminal 27 to be connected to each other via the conductive part 52 by making the fastening directions of the relay connection member 47 and the external bus bar terminal 27 different from each other.

[0087] The housing 60 also includes a receiving portion 64 that covers the periphery of the second end portion 56 on the opposite side to the fastening flat surface 56fa. Therefore, even if a foreign object is generated when the screw S is fastened into the opposite-side fastening hole 56h, the foreign object is received by the receiving portion 64.

[0088] Moreover, the conductive part 52 penetrates the partial partition 33 of the case 30 along the direction of the rotation axis X. Therefore, the space around the armature 42 can be partitioned by the partial partition 33 in the direction of the rotation axis X for effective use. For example, the space on one main surface side of the partial partition 33 can be used as a space for drawing the relay connection member 47 to the outside of the armature 42 and connecting it to the connection module 50, and the space on the other main surface side of the partial partition 33 can be used as a space for accommodating the control board 26. This makes it possible to effectively utilize the space that is likely to become a dead space, and makes it easy to reduce the overall size of the electromechanical integrated unit 20. In this case, the relay connection member 47 can be easily connected in a compact configuration to the first end portion 54 located in the space 32S that accommodates the armature 42.

[0089] Furthermore, according to this connection module 50, since the housing 60 is the portion that is passed through and held in the through hole 33h, a configuration can be realized in which the coil wire 46a of the rotating electric machine 40 can be drawn to another location by utilizing the portions of the first end 54 and the second end 56 that are exposed from the housing. Since the housing 60 is passed through and held in the through hole 33h of the case 30, the connection module 50 in the rotating electric machine 40 can be made smaller. This effect can be obtained even if a configuration in which the fastening hole 54h is not formed in the end face 54f is used.

[0090] In this case, since the housing 60 has the positioning protrusions 61, the connection module 50 can be positioned with respect to the through-hole 33h by the structure of the housing 60 itself, making it possible to further compact the configuration.

[0091] <Modification> In the present embodiment, an example has been described in which the end surface 54f and the fastening holes 54h are located within the space 32S that accommodates the armature 42. However, the configuration in which the fastening holes are formed on the end surface may be located on the side of the space 32S that accommodates the control board 26.

[0092] Furthermore, in the embodiment, the second end 56 does not have to be located within the space 33S that houses the control board 26, and may be exposed to the outside of the case, for example.

[0093] Various modifications based on the above embodiment will be described.

[0094] In the connection module 150 according to the first modification shown in FIG. 6, the conductive part 152 corresponding to the conductive part 52 includes a first end 54, a second end 156, and an intermediate part 58. The second end 156 is different from the second end 56 and includes a plate-like part, more specifically, a part formed in a disk-shaped part 156a. The disk-shaped part 156a may be formed, for example, by pressing one end of a round bar-shaped base material. A screw insertion hole is formed in the disk-shaped part 156a, and a nut 156b having a threaded groove is fixed thereto. The nut 156b is fixed to the disk-shaped part 156a by, for example, caulking or welding. With the part to be connected overlapped on the disk-shaped part 156a, a screw is threadedly fastened to the nut 156b through the screw insertion hole of the part to be connected and the screw insertion hole of the disk-shaped part 156a, thereby fixing the part to be connected to the second end 156.

[0095] The housing 160 corresponding to the housing 60 exposes the end face 54f and the outer periphery of the first end 54, and covers the intermediate portion 58 while exposing the second end 156. That is, in this housing 160, the peripheral wall portion 62 and the receiving portion 64 are omitted. However, the housing 160 has the positioning protrusion 61 described in the embodiment.

[0096] In this modified example, since the connection module 150 has the first end 54, the effects provided by the first end 54 are the same as those of the above embodiment.

[0097] Furthermore, since the housing 160 of the connection module 150 is configured to be passed through and held in the through hole 33h, the effects of the passed through holding are the same as those of the above embodiment.

[0098] 7, a conductive part 252 corresponding to the conductive part 52 includes a first end 54, a second end 256, and an intermediate part 58. The second end 256 is different from the second end 56 in that an opposite side fastening hole 256h is opened in an opposite side end face 256f opposite to the intermediate part 58. In other words, the second end 256 is configured similarly to the first end 54, except that the second end 256 faces the opposite side to the first end 54.

[0099] The housing 260 corresponding to the housing 60 covers the conductive part 252 with at least the opposite end face 256f of the second end 256 exposed. Therefore, when the external bus bar terminal 227 corresponding to the external bus bar terminal 27 extends parallel to the opposite end face 256f of the second end 256, the external bus bar terminal 227 can be fastened and fixed to the second end 256 by the screw S with the external bus bar terminal 227 in contact with the opposite end face 256f. The housing 260 has the positioning protrusion 61 described in the embodiment.

[0100] In this modified example, since the connection module 250 has the first end 54, the effects provided by the first end 54 are the same as those of the above embodiment.

[0101] In addition, in this modification, since fastening holes 54h, 256h are formed in both end faces 54f, 256f, respectively, a compact connection configuration with the connection target components is realized at both ends of the connection module 250. This configuration is also effective when the connection target components connected to both ends are parallel to each other and have opposing fastening directions.

[0102] Furthermore, since the housing 260 of the connection module 250 is configured to be passed through and held in the through hole 33h, the effects of the passed through holding are the same as those of the above embodiment.

[0103] In a connection module 350 according to a third modification shown in FIG. 8, a conductive part 352 corresponding to the conductive part 52 includes a first end 354, a second end 356, and an intermediate part 58. Unlike the first end 54, the first end 354 includes a part formed in a plate shape, more specifically, a rectangular plate-shaped part 354a. A relay connection member 347 corresponding to the relay connection member 47 is joined to the rectangular plate-shaped part 354a. The joining may be ultrasonic joining, laser welding, resistance welding, or soldering.

[0104] The relay connection member 347 may be an electric wire or a braided wire. In this embodiment, the relay connection member 347 includes a plurality of electric wires 347a arranged in parallel. The other end of the relay connection member 347 is joined to a coil wire or a bus bar connected to the coil wire. Such a relay connection member 347 can bend more flexibly than a bus bar formed of a metal plate. The second end 356 has the same configuration as the second end 256 according to the second modified example.

[0105] The housing 360 corresponding to the housing 60 covers the intermediate portion 58 while exposing the end face and outer periphery of the second end portion 356 and the first end portion 354. The housing 360 has the positioning protrusion 61 described in the embodiment.

[0106] In this modified example, since the connection module 350 has the second end 356, the action and effect of the second end 356 is the same as that of the first end 54 in the above embodiment.

[0107] Furthermore, since the housing 360 of the connection module 350 is configured to be passed through and held in the through hole 33h, the effects of the passed through holding are the same as those of the above embodiment.

[0108] In a connection module 450 according to a fourth modification shown in FIGS. 9 and 10, a conductive part 452 corresponding to the conductive part 52 includes a first end 454, a second end 456, and an intermediate part 458.

[0109] The second end 456, like the second end 156 described in the first modified example, is configured such that a nut 456b is fixed to a disk-shaped portion 456a having a screw insertion hole.

[0110] The intermediate portion 458 is formed in a band-like shape.

[0111] The first end 454, like the second end 456, has a configuration in which a nut 454b is fixed to a disk-shaped portion 454a having a screw insertion hole. Unlike the second end 456, the first end 454 is bent with respect to the intermediate portion 458. The first end may extend straight with respect to the intermediate portion.

[0112] A housing 460 corresponding to the housing 60 covers the middle portion 458 while exposing the first end portion 454 and the second end portion 456. The housing 460 can be held by being inserted through the through hole 33h, and has the positioning protrusion 61 described in the embodiment.

[0113] In this modification, the housing 460 of the connection module 450 is configured to be held through the through hole 33h, so the effect of the through-holding is the same as in the above embodiment. In addition, the target connection parts 470 and 472 extending in different directions, for example, in directions perpendicular to each other, can be easily fixed to the acupuncture points by the screws S.

[0114] The configurations described in the above embodiment and modifications can be combined as appropriate as long as they are not mutually inconsistent. [Explanation of symbols]

[0115] 20. Integrated electromechanical unit 26 Control Board 27, 227 External bus bar terminal 30 cases 31, 36 Lid 32 Cylinder case body 32S space 32h opening 33 Partition 33S space 33h through hole 34 Partition side wall 35 Expansion Space Formation Section 40 Rotating Electric Machine 42 Armature 46a Coil wire 47, 347 Interconnection parts 47a Disc-shaped part 47b Extension 47h Screw insertion hole 48 Field magnet 49 Rotating Shaft 50, 150, 250, 350, 450 Connection Module 52, 152, 252, 352, 452 Conductive parts 54, 354, 454 1st end 54f end face 54h Fastening hole 56, 156, 256, 356, 456 2nd end 56fa fastening plane 56fb, 256f Opposite end face 56h, 256h Opposite side fastening holes 58, 458 Middle section 60, 160, 260, 360, 464 Housing 60g circumferential groove 61 Positioning protrusion 62 Peripheral wall section 62g Concave 64 Receiving 68 Annular Elastic Ring 156a, 454a, 456a Disc-shaped part 156b, 454b, 456b Nut 347a electric wire 354a Square plate section 470, 472 Target connection parts S Screw X Rotation Axis

Claims

1. A connection module for a rotating electric machine including an armature and a case that houses the armature, a conductive part including a first end, a second end, and an intermediate part located between the first end and the second end and passing through a through hole of the case; a housing covering the conductive part; Equipped with A fastening hole is opened in an end surface of the first end portion opposite to the intermediate portion, A connection module for a rotating electric machine, wherein the housing covers the conductive component while leaving at least the end face of the first end and at least a portion of the second end exposed.

2. A connection module for a rotating electric machine according to claim 1, The housing is a part that is passed through and held in the through hole.

3. A connection module for a rotating electric machine according to claim 2, The housing has a positioning protrusion that contacts the case so as to be positioned in a penetrating direction of the through hole.

4. A connection module for a rotating electric machine according to any one of claims 1 to 3, the housing includes a peripheral wall portion that surrounds the end surface of the first end portion with the end surface exposed, A connection module for a rotating electric machine, wherein the peripheral wall portion is formed with a recess that is partially recessed in a circumferential direction.

5. A connection module for a rotating electric machine according to any one of claims 1 to 3, An opposite side fastening hole is opened in an opposite side end surface of the second end portion opposite to the intermediate portion, A connection module for a rotating electric machine, wherein the housing covers the conductive component while leaving at least the opposite end face of the second end exposed.

6. A connection module for a rotating electric machine according to any one of claims 1 to 3, A fastening plane is formed on a portion of the periphery of the second end, An opposite fastening hole is opened in the fastening plane, A connection module for a rotating electric machine, wherein the housing covers the conductive component while leaving at least the fastening flat surface of the second end exposed.

7. A connection module for a rotating electric machine according to claim 6, The housing includes a receiving portion that covers a periphery of the second end portion opposite the fastening plane.

8. A connection module for a rotating electric machine according to any one of claims 1 to 3, the first end is located within a space in the case that accommodates the armature, an armature-side connection target component fastened to the first end portion in a state of contacting an end face of the first end portion, the armature-side connection target component is a component extending from the first end portion located on the outer periphery side of the armature toward the inside of the armature, A connection module in a rotating electric machine, wherein the conductive part penetrates the case along the rotation axis direction of the rotating electric machine.

9. A connection module for a rotating electric machine including an armature and a case that houses the armature, a conductive part including a first end, a second end, and an intermediate part located between the first end and the second end and passing through a through hole of the case; a housing covering the conductive part; Equipped with the housing covers the conductive component with at least a portion of the first end and at least a portion of the second end exposed; The housing is a part that is passed through and held in the through hole.

10. A connection module for a rotating electric machine according to claim 9, The housing has a positioning protrusion that contacts the case so as to be positioned in the direction in which the through hole penetrates.

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