JP2023078729A - Terminal module in rotary electric machine - Google Patents

Abstract

To make it possible to absorb misalignment even without adding a relay bus bar for absorbing misalignment.SOLUTION: A terminal module 30 in a rotary electric machine includes a set of conductive components 40 integrally constituted of first connecting ends 42, second connecting ends 50, and intermediate conductor portions 44 each interposed between the first connecting end 42 and the second connecting end 50. The first connecting end 42 is connected to a coil wire 26 of the rotary electric machine. The second connecting end 50 has a clip portion 52 that holds a plate-shaped busbar 18 to which the coil wire is to be electrically connected.SELECTED DRAWING: Figure 2

Description

The present disclosure relates to a terminal module in a rotating electric machine.

Patent Literature 1 discloses a terminal block attached to a cylindrical motor case. A terminal block is used as a base for electrically connecting a three-pole bus bar provided in a three-phase AC motor and a three-pole bus bar provided in an inverter.

JP 2012-186882 A

When the inverter and the motor are integrated, positional deviation may occur between the motor-side bus bar and the inverter-side bus bar due to assembly tolerance, thermal expansion and contraction, and the like. From the viewpoints of reducing the number of parts, improving the ease of assembly, and downsizing, it is desirable to absorb the positional deviation without adding a relay bus bar for absorbing the positional deviation.

Therefore, an object of the present disclosure is to absorb the positional deviation without adding a relay bus bar for absorbing the positional deviation.

The present disclosure is a terminal module in a rotating electrical machine, in which a first connection end, a second connection end, and an intermediate conductor interposed between the first connection end and the second connection end are integrated. The first connection end is connected to the coil wire of the rotating electric machine, and the second connection end is a clip that clamps a flat plate-shaped bus bar to which the coil wire is electrically connected. A terminal module in a rotating electric machine having a part.

According to the present disclosure, positional deviation can be absorbed without adding a relay bus bar for absorbing positional deviation.

FIG. 1 is a schematic diagram showing an electromechanical integrated unit according to an embodiment. FIG. 2 is a perspective view showing a terminal module. FIG. 3 is a perspective view showing a clip portion. FIG. 4 is a cutaway view showing the clip portion. FIG. 5 is a side view showing the clip portion. FIG. 6 is a sectional view taken along line VI-VI of FIG. FIG. 7 is a side view showing a clip portion according to a modification.

[Description of Embodiments of the Present Disclosure]
First, the embodiments of the present disclosure are listed and described.

The terminal module in the rotating electric machine of the present disclosure is as follows.

(1) A terminal module in a rotating electric machine, in which a first connection end, a second connection end, and an intermediate conductor interposed between the first connection end and the second connection end are integrated. A clip portion including a conductive part, wherein the first connecting end is connected to the coil wire of the rotating electric machine, and the second connecting end clamps a flat plate-shaped bus bar to which the coil wire is electrically connected. A terminal module in a rotating electrical machine, comprising:

Advantageous Effects of Invention According to the present disclosure, by holding a flat busbar between clip portions, the busbar can be electrically connected to a coil wire without a bolt fastening operation. Due to the structure in which the clip portion sandwiches the bus bar, the positional deviation can be absorbed without adding a relay busbar for absorbing the positional deviation. Since there is no need to add a relay busbar for absorbing positional deviation, it is possible to reduce the number of parts and the size of the terminal module.

(2) In the terminal module in the rotating electrical machine of (1), the conductive part may be a part formed by pressing a single metal plate. This simplifies the configuration of the conductive parts.

(3) In the terminal module in the rotating electric machine of (1) or (2), the clip portion has a first clamping piece and a second clamping piece, and the first clamping piece and the second clamping piece are The bus bars may be clamped while being biased toward each other.

In this case, since the first clamping piece and the second clamping piece are biased toward each other, the first clamping piece and the second clamping piece are elastically deformed separately, thereby separating the clip portion and the bus bar. It is easy to absorb various misalignments between them.

(4) In the terminal module in the rotating electric machine of (3), the clip portion has a plurality of sets of the first holding piece and the second holding piece, and the first holding piece and the second holding piece A plurality of combinations may be arranged in parallel.

In this case, the bus bar is clamped by the plurality of sets of the first clamping piece and the second clamping piece. Therefore, for example, even if the busbar is twisted and displaced from the clip portion, the first clamping piece and the second clamping piece of each pair are likely to come into contact with the busbar, and the contact between the clip portion and the busbar is stable. do.

(5) In the terminal module in the rotating electric machine of (4), the clip portion includes a pair of extending portions arranged to face each other with a space therebetween, and from one end portion of the pair of extending portions, The plurality of first clamping pieces are bent back with a gap therebetween, and the plurality of second clamping pieces extend from the other end portion of the pair of extension portions with a gap therebetween. , may be bent back.

As a result, each of the plurality of first clamping pieces and each of the plurality of second clamping pieces can be easily deformed independently, and various misalignments between the clip portion and the bus bar can be easily absorbed.

(6) In the terminal module of any one of (3) to (5), the first clamping piece and the second clamping piece partially protrude toward the bus bar. It may have protrusions.

As a result, since the partial projection contacts the busbar, even if the busbar is tilted with respect to the clip portion, the partial projection stably maintains contact with the busbar.

(7) In the terminal module in any one of (1) to (6), the first connection end may be integrated with the coil wire by joining. In this case, the terminal module connected to the coil wire in the rotating electrical machine can be configured as an integrated component in the rotating electrical machine.

[Details of the embodiment of the present disclosure]
A specific example of the terminal module in the rotating electric machine of the present disclosure will be described below with reference to the drawings. The present disclosure is not limited to these examples, but is indicated by the scope of the claims, and is intended to include all modifications within the scope and meaning equivalent to the scope of the claims.

[Embodiment]
<Overall configuration>
A terminal module in the rotating electric machine according to the embodiment will be described below. A terminal module in a rotating electrical machine is a module for connecting a coil wire in the rotating electrical machine to an electrical device. The electrical equipment is, for example, an inverter that drives and controls a rotating electric machine. For convenience of explanation, the overall configuration of an electromechanical integrated unit in which a rotating electric machine and an inverter are integrated will be explained. FIG. 1 is a schematic diagram showing an electromechanical integrated unit 10. As shown in FIG.

The electromechanical integrated unit 10 includes a rotating electrical machine 20 and an inverter 12 .

The rotating electrical machine 20 is a rotating electrical machine that includes a case 22, an armature 24, and a magnetic field. FIG. 1 shows an example in which an armature 24 as a stator is fixed inside a tubular case 22 . The field is arranged in the armature 24 as a rotor. The magnetic field generated by the armature 24 causes the field to rotate, or the rotation of the field causes the armature 24 to generate an electromotive force. In this embodiment, it is assumed that the rotating electrical machine 20 is a rotating electrical machine that can be used as a three-phase AC motor. The rotating electric machine may be operable as a generator in addition to or instead of operating as a motor.

The armature 24 includes a stator core and multiple coil wires 26 (see FIG. 2). The stator core includes multiple teeth, and the multiple teeth are provided so as to surround the rotating shaft. Each coil wire 26 is wound around one or more teeth. At least some of the ends of the coil wires 26 are connecting ends that are pulled out from between the teeth to one end in the axial direction of the armature 24 and electrically connected to the inverter 12 . .

The coil wire 26 is, for example, a rectangular conductor whose cross section (the cross section on the plane perpendicular to the extending direction) is elongated in one direction. When the coil wire 26 is composed of a rectangular conductor in this way, it is possible to increase the space factor of the coil. However, if the coil wire 26 is a rectangular conductor, it is harder and less deformable than when a twisted wire is used as the coil wire. becomes difficult. In the terminal module 30, for example, even when a rectangular conductor is used as the coil wire 26, the clip portion 52 can play a role of absorbing positional deviation caused by assembly tolerance, thermal expansion and contraction, and the like.

The inverter 12 is a device having an inverter circuit. Inverter 12 is assumed to be integrated with rotating electric machine 20 . For example, the inverter 12 is integrated with the case 22 of the rotary electric machine 20 by bolting or the like.

The inverter 12 has a busbar 18 connected to the output terminal of the inverter circuit. The bus bar 18 is an elongated plate-like member made of a metal plate material such as copper or copper alloy. In this embodiment, three busbars 18 corresponding to three phases extend from the inverter 12 toward the rotary electric machine 20 in parallel at intervals. The bus bar 18 is an example of a flat plate-shaped bus bar to which the coil wire 26 is electrically connected.

The terminal module 30 is a component incorporated in the rotating electrical machine 20 as a part of the rotating electrical machine 20 . Terminal module 30 comprises an electrically conductive component 40 . One end of the conductive part 40 is connected to the end of the coil wire 26 and the other end is supported at a position connectable to the end of the bus bar 18 of the inverter 12 .

When trying to integrate the inverter 12 with the rotary electric machine 20 in which the terminal module 30 is incorporated, the bus bar 18 is placed at a position where it can be connected to the other end of the conductive part 40 .

When the inverter 12 is integrated with the rotary electric machine 20, it is conceivable that the end of the bus bar 18 and the other end of the conductive part 40 are misaligned within the range of assembly tolerance. Further, in a state where the inverter 12 is integrated with the rotating electric machine 20, it is conceivable that the end portion of the bus bar 18 and the other end portion of the conductive component 40 are misaligned due to thermal expansion and contraction. The present disclosure relates to a technology that allows the terminal module 30 in the rotary electric machine 20 to play a role of absorbing positional deviation.

<About the terminal module>
The terminal module 30 will be described more specifically. FIG. 2 is a perspective view showing the terminal module 30. FIG.

As shown in FIGS. 1 and 2, the terminal module 30 comprises a conductive component 40. As shown in FIG. In this embodiment, the terminal module 30 includes three conductive parts 40 corresponding to each of the three phases.

The conductive part 40 is a part having conductivity. The conductive part 40 has a configuration in which a first connection end 42, a second connection end 50, and an intermediate conductor portion 44 interposed between the first connection end 42 and the second connection end 50 are integrated. ing.

Here, the integration of the first connection end 42, the second connection end 50, and the intermediate conductor portion 44 means that the first connection end 42, the second connection end 50, and the intermediate conductor portion 44 are partially integrated regardless of whether they are different parts or the same part from the beginning. It refers to a state in which it is integrated in a state where it is difficult to separate without destruction, deformation, etc. In this embodiment, the conductive part 40 in which the first connection end 42, the second connection end 50, and the intermediate conductor portion 44 are integrated is formed by pressing a sheet of metal plate material such as copper or copper alloy. Configured. As an example of integrating the first connection end 42, the second connection end 50, and the intermediate conductor portion 44, for example, the first connection end 42 or the second connection end 50 is welded to the intermediate conductor portion 44. , press fitting, conductive adhesive, crimping, or the like. Welding includes not only joining by melting the base material itself but also joining by melting the filler material (including brazing and soldering). However, the case where they are joined by bolting is excluded.

The first connecting end 42 is connected to the end of the coil wire 26 . For example, the end of the coil wire 26 is connected to the first connecting end 42 by welding or the like. The connection configuration between the first connection end 42 and the end of the coil wire 26 is not particularly limited, and may be a press-fit connection, a caulking connection, or the like. Ends of the plurality of coil wires 26 may be connected to the conductive parts 40 . In this embodiment, the conductive component 40 has four first connection ends 42 to which ends of the coil wires 26 are connected. The conductive part 40 has an arbitrary number of first connection ends 42 according to the number of ends of the coil wire 26 to be connected. The first connection end 42 is preferably integrated with the coil wire 26 by joining. In other words, the first connection end 42 and the coil wire 26 are originally separate parts, and are joined together in a state in which it is difficult to separate them without partial destruction, deformation, or the like, and are handled as one. It has become.

The intermediate conductor portion 44 is formed in an elongated shape (one intermediate conductor portion 44 is illustrated in FIG. 1). The intermediate conductor portion 44 may be straight or curved in the middle. The plurality of first connection ends 42 are provided at one end of the intermediate conductor portion 44 , and the second connection end 50 is provided at the other end. A plurality of first connection ends 42 are brought together by an intermediate conductor portion 44 . When the plurality of first connection ends 42 are positioned apart, the intermediate conductor portion 44 may branch according to the positions of the plurality of first connection ends 42 .

Terminal module 30 comprises a support base 32 . The support base 32 holds the plurality of conductive parts 40 in a fixed position while being insulated from each other. In this embodiment, the support base 32 is formed in a plate shape. More specifically, the support base 32 has an arcuate plate portion 33 and an outer peripheral extension portion 34 . The arcuate plate portion 33 is formed in an arcuate shape extending so as to partially cover one end surface of the cylindrical armature 24 in the circumferential direction. The outer peripheral extension portion 34 is formed in a rectangular plate shape that protrudes from the intermediate portion in the extending direction of the outer peripheral portion of the arc-shaped plate portion 33 toward the outer peripheral side of the armature 24 .

Each conductive part 40 is held by a support base 32 . For example, the support base 32 is formed by molding the intermediate conductor portion 44 as an insert part. The support base 32 may have a structure in which a plurality of parts are combined so as to support a part of the conductive part 40 inside. The conductive part 40 is covered by the support base 32 in a posture directed from the arc-shaped plate portion 33 toward the outer peripheral extension portion 34 . The plurality of first connection ends 42 extend from one end of the intermediate conductor portion 44 and protrude from the surface of the arc plate portion 33 on the armature 24 side. As a result, the first connection end 42 is arranged at a position where it can be connected to the end of the coil wire 26 . The second connection end 50 is exposed outward from the support base 32 . In this embodiment, the second connection end 50 protrudes radially outward of the armature 24 from one main surface of the outer peripheral extension portion 34 , here, the outward surface 34 f opposite to the armature 24 .

The support base 32 is fixed to the case 22 of the rotary electric machine 20 by screwing, fitting structure, or the like. As a result, the terminal module 30 is held at a fixed position within the rotating electric machine 20 .

The second connection end 50 has a clip portion 52 . The clip portion 52 is configured to clamp the busbar 18 .

<About the clip part>
The clip portion 52 will be described more specifically. 3 is a perspective view showing the clip portion 52. FIG. FIG. 4 is a cutaway view showing the clip portion 52. As shown in FIG. In FIG. 4, the portion of the clip portion 52 on the side of the second holding portion 53B is omitted. 5 is a side view showing the clip portion 52. FIG. FIG. 6 is a sectional view taken along line VI-VI of FIG.

The clip portion 52 has a first clamping portion 53A and a second clamping portion 53B. The first sandwiching portion 53A and the second sandwiching portion 53B face each other in the thickness direction of the intermediate conductor portion 44 . An end portion of the busbar 18 is arranged between the first clamping portion 53A and the second clamping portion 53B.

The first holding portion 53A is a portion formed by pressing a metal plate, and has a first base portion 54A, a first extending portion 55A, and a first holding piece 56A.

The first base portion 54A is a rectangular plate-like portion that curves from the edge of the other end of the intermediate conductor portion 44 toward one side in the thickness direction of the intermediate conductor portion 44 .

The first extending portion 55A is a rectangular plate-like portion that extends in a posture parallel to the intermediate conductor portion 44 in a direction away from the intermediate conductor portion 44 from the tip edge of the first base portion 54A.

56 A of 1st clamping pieces are bent back so that it may go to the base end side of 55 A of 1st extension parts from the front-end|tip part of 55 A of 1st extension parts in the one surface side of 55 A of said 1st extension parts. . In this embodiment, the first clamping portion 53A includes a plurality of (here, two) first clamping pieces 56A. The two first clamping pieces 56A are bent back with a gap between them. That is, the slit S exists between the two first clamping pieces 56A, and the respective first clamping pieces 56A can be elastically deformed without interfering with each other. The slit S may reach the tip of the first extending portion 55A.

56 A of 1st clamping pieces are bent so that the intermediate part which goes to a front-end|tip side from a proximal end may be farthest from 55 A of 1st extending parts. More specifically, the longitudinal intermediate portion of the first clamping piece 56A is bent at an obtuse angle, and the portion extending from the bent point toward the base end side and the tip end side of the first clamping piece 56A is the base end side. Alternatively, it is inclined so as to approach the first extension portion 55A toward the tip side.

The first clamping piece 56A has a partial projection 57A that partially projects toward the bus bar 18 to be clamped. The partial protrusion 57A may be a protrusion when viewed from the side of the bus bar 18 to be clamped. For example, the partial protrusion 57A is formed by pressing a metal plate. Therefore, the partial projection 57A is a projection when viewed from the side of the bus bar 18 to be clamped, but may be a recess when viewed from the opposite side.

In the present embodiment, a partial protrusion 57A is formed at the widthwise center of the bent portion of the first clamping piece 56A. The partial protrusion 57A is, for example, formed in an elongated partial spherical shape along the extending direction of the first clamping piece 56A.

The second clamping portion 53B is a portion formed by pressing a metal plate, and has a bent overlapping portion 58B, a second base portion 54B, a second extending portion 55B, and a second clamping piece 56B.

The bent overlapping portion 58B is formed by bending a portion extending from one side portion of the other end portion of the intermediate conductor portion 44 so as to overlap the other end portion of the intermediate conductor portion 44 . By forming the second base portion 54B, the second extension portion 55B, and the second clamping piece 56B so as to be continuous with the bent overlapping portion 58B, the first clamping portion 53A and the second clamping portion 53B are formed into one sheet of metal. It can be formed by bending a plate. However, the second clamping portion 53B may be joined to the other end portion of the intermediate conductor portion 44 or the first clamping portion 53A by welding or the like to be integrated.

The second base portion 54B, the second extension portion 55B, and the second clamping piece 56B are arranged in the thickness direction of the bus bar 18 to be clamped with respect to the first base portion 54A, the first extension portion 55A, and the first clamping piece 56A. It is configured to have mirror image symmetry through a central virtual plane.

That is, the second base portion 54B is a rectangular plate-like portion that is bent from the edge of the bent overlapping portion 58B toward the side opposite to the first base portion 54A.

The second extending portion 55B is a rectangular plate-like portion that extends in a posture parallel to the intermediate conductor portion 44 in a direction away from the intermediate conductor portion 44 from the tip edge of the second base portion 54B. Therefore, the clip portion 52 has a first extension portion 55A and a second extension portion 55B as a pair of extension portions that are arranged to face each other with a space therebetween.

The second holding piece 56B is bent back from the distal end of the second extending portion 55B toward the base end side of the second extending portion 55B on one surface side of the second extending portion 55B. . In this embodiment, the second clamping portion 53B includes a plurality of (here, two) second clamping pieces 56B, like the first clamping portion 53A.

A slit S is present between the two second holding pieces 56B, like the two first holding pieces 56A. One first holding piece 56A faces one second holding piece 56B, and the other first holding piece 56A faces the other second holding piece 56B. Therefore, the main clip portion 52 has a plurality of sets of the first clamping piece 56A and the second clamping piece 56B, and a plurality of combinations of the first clamping piece 56A and the second clamping piece 56B are arranged in parallel. ing.

The bending shape of the second holding piece 56B is the same as the bending shape of the first holding piece 56A. The second clamping piece 56B has a partial protrusion 57B, like the first clamping piece 56A.

The minimum gap between the first clamping piece 56A and the second clamping piece 56B in the initial state is smaller than the thickness of the busbar 18 . Before the bus bar 18 is clamped, the first clamping piece 56A and the second clamping piece 56B may or may not be in contact with each other.

When the busbar 18 is inserted between the first clamping portion 53A and the second clamping piece 56B, the first clamping piece 56A and the second clamping piece 56B are elastically deformed in the directions away from each other according to the thickness of the busbar 18 . In a state in which the first clamping piece 56A and the second clamping piece 56B are biased toward each other by the elastic force that causes the first clamping piece 56A and the second clamping piece 56B to return to their original shapes, the clip portion 52 is pulled. The bus bar 18 is clamped.

<Position deviation absorption operation>
A more specific description will be given of the positional deviation absorption operation in a state where the clip portion 52 clamps the bus bar 18 .

When integrating the inverter 12 with the rotating electric machine 20 , the end of the busbar 18 is inserted toward the clip portion 52 . Then, the tip edge of the busbar 18 comes into contact with the facing surfaces of the first clamping piece 56A and the second clamping piece 56B. When the bus bar 18 is further inserted, the first clamping piece 56A and the second clamping piece 56B are deformed in the separation direction. In a state where the bus bar 18 is arranged between the first clamping piece 56A and the second clamping piece 56B, the first clamping piece 56A and the second clamping piece 56B are returned to their original positions. The second holding pieces 56B are biased toward each other. This force keeps the first clamping piece 56A and the second clamping piece 56B in electrical contact with the bus bar 18 .

Assume that the bus bar 18 is displaced in the thickness direction of the bus bar 18 with respect to the clip portion 52 during the integration work (see arrow A1 in FIG. 5). Here, in the clamping state of the bus bar 18, both the first clamping piece 56A and the second clamping piece 56B are elastically deformed (see FIG. 5). Therefore, for example, both the first clamping piece 56A and the second clamping piece 56B absorb the positional deviation by deforming in the direction corresponding to the positional deviation of the bus bar 18 (see arrow A2 in FIG. 5). The bus bar 18 can be clamped while holding.

Assume that the busbar 18 is tilted forward and backward in the thickness direction of the busbar 18 with respect to the clip portion 52 (see arrow B in FIG. 5). This is the so-called positional deviation due to inclination in the pitch direction. Since the first clamping piece 56A and the second clamping piece 56B are separately elastically deformable, they can maintain contact with the busbar 18 even if the busbar 18 is tilted as described above.

The displacement in the A1 and B directions can also be absorbed by the elastic deformation of the end portion of the intermediate conductor portion 44 on the side of the clip portion 52 in the thickness direction.

In particular, the first clamping piece 56A and the second clamping piece 56B can contact the bus bar 18 via the partial protrusions 57A and 57B. Therefore, even if the bus bar 18 is tilted as described above, the first clamping piece 56A and the second clamping piece 56B are in stable contact with the bus bar 18 via the partial protrusions 57A and 57B, and the bus bar 18 is held in place. can be clamped.

It is also assumed that the busbar 18 is displaced from the clip portion 52 in the extending direction of the busbar 18 during the work of integrating the inverter 12 with the rotary electric machine 20 (see arrow C in FIG. 5). In this case, the first clamping piece 56A and the second clamping piece 56B can clamp the bus bar 18 at positions corresponding to the positional deviation. Therefore, positional deviation in the extending direction of the bus bar 18 is also absorbed.

Also, assume that the bus bar 18 is displaced in the width direction of the bus bar 18 with respect to the clip portion 52 during the work of integrating the inverter 12 with the rotating electric machine 20 (see arrow D in FIG. 6). In this case, the first clamping piece 56A and the second clamping piece 56B can clamp the bus bar 18 at positions corresponding to the positional deviation. Therefore, the positional deviation of the bus bar 18 in the width direction is also absorbed.

It is also assumed that the busbar 18 is displaced from the clip portion 52 so as to be inclined in the width direction in the thickness direction of the busbar 18 (see arrow E1 in FIG. 5). This is positional deviation due to so-called inclination in the roll direction, and is in a twisted relationship with the clip portion 52 . Here, one set of the first and second holding pieces 56A and 56B and the other set of the first and second holding pieces 56A and 56B can be elastically deformed separately. For this reason, for example, the first clamping piece 56A and the second clamping piece 56B of one pair are deformed so as to be biased toward one side in the thickness direction of the busbar 18 (see arrow E2 in FIG. 6), and the first clamping piece 56A of the other pair is deformed. The clamping piece 56A and the second clamping piece 56B can be deformed so as to bias toward the other side in the thickness direction of the busbar 18 (see arrow E3 in FIG. 6). In this deformed state, each pair of first clamping pieces 56A and second clamping pieces 56B can stably contact the bus bar 18 . Therefore, even if the busbar 18 is tilted in the roll direction as described above, the first clamping piece 56A and the second clamping piece 56B can clamp the busbar 18 in a state of stably contacting the busbar 18 .

Even if a positional deviation occurs between the clip portion 52 and the bus bar 18 in a state where the inverter 12 is assembled to the rotary electric machine 20, the positional deviation is absorbed in the same manner as described above.

<Effects, etc.>
According to the terminal module 30 configured in this manner, the bus bar 18 can be connected to the coil wire 26 via the conductive part 40 without bolt fastening work by holding the flat bus bar 18 between the clip portions 52 . can be electrically connected. The structure in which the clip portion 52 sandwiches the bus bar 18 can absorb positional deviation. Since there is no need to add a relay bus bar for absorbing positional deviation, the number of parts can be reduced and the size of the terminal module 30 can be reduced.

In addition, since the number of bolt fastening locations can be reduced, shape restrictions due to openings for bolt fastening work are reduced, and the size of the electromechanical integrated unit 10 can be reduced.

Moreover, since the conductive part 40 is a part formed by pressing a single metal plate, the configuration of the conductive part 40 is simplified.

In addition, since the first clamping piece 56A and the second clamping piece 56B are biased toward each other, the first clamping piece 56A and the second clamping piece 56B are elastically deformed separately, thereby causing the busbar of the clip portion 52 to move. It is easy to absorb various misalignments between the busbars 18, for example, misalignments in the thickness direction of the busbars 18.

A plurality of combinations of the first clamping pieces 56A and the second clamping pieces 56B are arranged in parallel. Therefore, the bus bar 18 is clamped by the plurality of sets of the first clamping pieces 56A and the second clamping pieces 56B. Therefore, for example, even if the busbar 18 is twisted and misaligned with respect to the clip portion 52, the first clamping piece 56A and the second clamping piece 56B of each pair are likely to come into contact with the busbar 18, and the clip portion The contact between 52 and bus bar 18 is stabilized.

Further, the plurality of first pinching pieces 56A are bent back with a gap from the tip of the first extending portion 55A, and the plurality of second pinching pieces 56B are formed with the gap from the tip of the second extending portion 55B. It is bent back in a state where it is separated from For this reason, each of the plurality of first clamping pieces 56A and each of the plurality of second clamping pieces 56B can be easily deformed independently, resulting in various misalignments between the clip portion 52 and the bus bar 18, such as the above-described misalignment. It is easy to absorb the displacement of the torsional relationship.

Further, when the first clamping piece 56A and the second clamping piece 56B have the partial projections 57A and 57B, respectively, even if the busbar 18 is tilted with respect to the clip portion 52, the partial projections 57A and 57B can stably hold the busbar. 18 is kept in contact.

In addition, since the first connection end 42 is integrated with the coil wire 26 by joining, the terminal module 30 can be configured as an integrated component in the rotary electric machine 20 without bolting or the like.

[Modification]
As shown in FIG. 7, the clip portion 52 may have a biasing member 100 that biases the first clamping piece 56A and the second clamping piece 56B in the approaching direction.

The biasing member 100 has a connecting portion 100a and a pair of biasing portions 100b. The connecting portion 100a has a long flat plate shape. Each biasing portion 100b has a plate-like shape extending from opposite edges of the connecting portion 100a. Each biasing portion 100b obliquely extends in a direction intersecting the connecting portion 100a from each of both end edges of the connecting portion 100a. Each biasing portion 100b extends in a direction approaching each other as it is separated from the connecting portion 100a.

The biasing member 100 is attached to the distal end portions of the first clamping piece 56A and the second clamping piece 56B. The first clamping piece 56A and the second clamping piece 56B are arranged between the pair of urging portions 100b. Each biasing portion 100b is displaced in a direction away from each other with the end of each biasing portion 100b on the 100a side as a base point. Then, each biasing portion 100b tries to return to the original position before being displaced in the direction away from each other, so that each biasing portion 100b biases each clamping piece 56A, 56B in the approaching direction. As a result, the bus bar 18 is stably held between the pair of holding portions 53A and 53B.

In the configuration including the biasing member 100 as in this modified example, the clamping pieces 56A and 56B can be biased by the bus bar 18 by the elastic restoring force of the biasing member 100 . Therefore, the minimum gap between the first clamping piece 56A and the second clamping piece 56B in the initial state may be larger than the thickness of the busbar 18 .

It should be noted that the configurations described in the above embodiment and modifications can be appropriately combined as long as they do not contradict each other.

10 Electro-mechanical integrated unit 12 Inverter 18 Bus bar 20 Rotating electric machine 22 Case 24 Armature 26 Coil wire 30 Terminal module 32 Support base 33 Arc-shaped plate portion 34 Peripheral extension portion 34 f Outward surface 40 Conductive part 42 First connection end 44 Intermediate conductor Part 50 Second connection end 52 Clip part 53A First clamping part (first clamping piece)
53B second clamping portion (second clamping piece)
54A First base portion 54B Second base portion 55A First extension portion (extension portion)
55B second extension (extension)
56A First clamping piece 56B Second clamping pieces 57A, 57B Partial protrusion 58B Folded bent portion 100 Biasing member 100a Connecting portion 100b Biasing portion S Slit

Claims (7)

A terminal module in a rotating electric machine,
A conductive part in which a first connection end, a second connection end, and an intermediate conductor interposed between the first connection end and the second connection end are integrated,
the first connection end is connected to a coil wire of the rotating electric machine,
A terminal module in a rotary electric machine, wherein the second connection end has a clip portion that clamps a flat plate-shaped bus bar to which the coil wire is electrically connected. A terminal module in the rotary electric machine according to claim 1,
A terminal module in a rotating electric machine, wherein the conductive part is a part formed by pressing a single metal plate. A terminal module in the rotary electric machine according to claim 1 or 2,
The clip portion has a first clamping piece and a second clamping piece, and clamps the bus bar in a state in which the first clamping piece and the second clamping piece are urged toward each other in a direction toward each other. module. A terminal module in the rotary electric machine according to claim 3,
The clip portion has a plurality of sets of the first clamping piece and the second clamping piece,
A terminal module in a rotating electric machine, wherein a plurality of combinations of the first clamping pieces and the first clamping pieces are arranged in parallel. A terminal module in the rotary electric machine according to claim 4,
The clip portion includes a pair of extending portions arranged facing each other with a space therebetween,
The plurality of first clamping pieces are bent back from one end portion of the pair of extension portions with a gap therebetween,
A terminal module in a rotating electric machine, wherein the plurality of front two clamping pieces are bent back from the other end portion of the pair of extending portions while being spaced apart. A terminal module in the rotary electric machine according to any one of claims 3 to 5,
A terminal module in a rotating electrical machine, wherein each of the first clamping piece and the second clamping piece has a partial protrusion that partially protrudes toward the bus bar. A terminal module in the rotary electric machine according to any one of claims 1 to 6,
A terminal module in a rotating electric machine, wherein the first connecting end is integrated with the coil wire by joining.

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