JP7236620B2 - Method for manufacturing wiring member for rotating electric machine, and wiring member for rotating electric machine - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method for manufacturing a wiring member for a rotating electrical machine, and a wiring member for a rotating electrical machine.

2. Description of the Related Art A wiring member for a rotating electrical machine that connects coil ends of a stator and electrodes of a terminal block in the rotating electrical machine is known. As such a wiring member for a rotary electric machine, there is known one that includes a plurality of conductive wires and a resin molded portion formed by molding a resin so as to cover the plurality of conductive wires (for example, Patent Document 1 reference).

JP 2015-133873 A

In a wiring member for a rotating electric machine having a resin molded portion, there have been cases where positional deviation of conductive wires occurs due to resin pressure when forming the resin molded portion. When the conductive wire is misaligned, the connection position with the coil end is misaligned, which may make it difficult to attach the wiring member for a rotating electric machine.

Moreover, there is also a problem that it is difficult to dissipate the heat generated in the conductive wire in the portion covered with the resin molded portion.

SUMMARY OF THE INVENTION Accordingly, the present invention provides a method for manufacturing a wiring member for a rotating electric machine, which can suppress misalignment of the conductive wires during resin molding, and improves the heat dissipation performance of the heat generated in the conductive wires, and the wiring member for the rotating electric machine. for the purpose.

An object of the present invention is to solve the above problems by providing a method for manufacturing a wiring member for a rotating electric machine, which has a plurality of conductive wires and connects coil ends of a stator and electrodes of a terminal block in the rotating electric machine, A mold having protrusions is used, and resin is poured into the mold while the protrusions are brought into contact with the outer surfaces of the conductive wires to hold the conductive wires, thereby partially covering the plurality of conductive wires. Provided is a method for manufacturing a wiring member for a rotating electric machine, which forms a resin molded portion.

Further, in order to solve the above-described problems, the present invention provides a wiring member for a rotating electrical machine, which has a plurality of conductive wires and connects coil ends of a stator and electrodes of a terminal block in the rotating electrical machine. Provided is a wiring member for a rotating electrical machine, comprising: a resin molded portion covering a portion of a plurality of conductive wires; and a recessed exposed portion exposing the conductive wires is formed in the resin molded portion.

Advantageous Effects of Invention According to the present invention, it is possible to provide a method for manufacturing a wiring member for a rotating electric machine, which can suppress misalignment of the conductive wire during resin molding and improve the heat dissipation performance of heat generated in the conductive wire, and a wiring member for the rotating electric machine. .

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 shows a configuration example of a rotating electric machine including a wiring member for a rotating electric machine according to an embodiment of the present invention, where (a) is an overall view and (b) is a partial enlarged view of (a); (a), (b) is a perspective view of the wiring member for rotary electric machines. It is the perspective view which expanded the principal part of the wiring member for rotary electric machines. (a) and (b) are perspective views of a holder. (a) and (b) are perspective views when the conductive wire is arranged in the holder. (a) is a perspective view of a mold piece, and (b) is a perspective view showing a position where the mold piece abuts on a conductive wire. (a), (b) is a figure explaining formation of the exposed part by a metal mold piece.

[Embodiment]
BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows a configuration example of a rotating electric machine provided with a wiring member for a rotating electric machine according to an embodiment of the present invention, (a) is an overall view, and (b) is a partially enlarged view of (a). The rotary electric machine 10 is mounted on a vehicle driven by electric power, such as an electric vehicle or a so-called hybrid vehicle. In the following description, a case where the rotating electric machine 10 is used as an electric motor will be described, but it is also possible to use the rotating electric machine 10 as a generator.

The rotary electric machine 10 includes a rotor 12 , a stator 11 arranged to surround the rotor 12 , and a terminal block 13 . The rotor 12 is constructed by embedding a plurality of magnets 122 in a rotor core 121 made of soft magnetic metal, and rotates together with a shaft 123 inserted through the center. The stator 11 has a stator core 111 made of soft magnetic metal and a plurality of coil pieces 112 .

In the following description, the direction parallel to the rotation axis O of the shaft 123 is called the axial direction, and the direction passing through the rotation axis O and perpendicular to the rotation axis O is called the radial direction. The vertical direction is called the circumferential direction. Further, in the following description, for convenience of explanation, of the two axial sides of the stator core 111, the side on which the wiring member 1 for rotating electric machine is arranged is referred to as the upper side, and the opposite side is referred to as the lower side. However, the upper side and the lower side do not specify the vertical direction when mounted on a vehicle.

Although not shown, stator core 111 integrally has a cylindrical back yoke and a plurality of teeth projecting radially inward from the back yoke. Slots are formed between teeth adjacent to each other in the circumferential direction. Each coil piece 112 is accommodated and held in a slot of the stator core 111 .

The coil piece 112 is composed of a conductive metal 112M having good conductivity such as copper or aluminum, and an electrically insulating coating layer 112I covering the surface of the conductive metal 112M. In this embodiment, the conductive metal 112M is a rectangular single wire having a rectangular cross section, and the coating layer 112I is made of enamel coating. At the coil end 113, which is the end of the coil piece 112, the coating layer 112I is removed to expose the conductive metal 112M. The coil ends 113 of each coil piece 112 are welded to each other to form two sets of three-phase (U-phase, V-phase, and W-phase) stator windings whose electrical angle phases are shifted by a predetermined angle.

The rotary electric machine 10 also includes a housing (not shown) that accommodates the stator 11 and a terminal block 13 fixed to the housing. The terminal block 13 has a base 131 made of resin fixed to the housing, and three electrodes 132 to which a three-phase alternating current is supplied from a controller.

Further, the rotating electrical machine 10 includes the wiring member 1 for rotating electrical machine according to the present embodiment. The wiring member 1 for rotating electric machine is a member for connecting the coil ends 113 of the stator 11 and the electrodes 132 of the terminal block 13 . Details of the wiring member 1 for a rotating electrical machine will be described below.

(Wiring member 1 for rotary electric machine)
2A and 2B are perspective views of the wiring member 1 for rotating electric machine. FIG. 3 is an enlarged perspective view of a main portion of the wiring member 1 for rotating electric machine. A wiring member 1 for a rotating electrical machine includes a plurality of conductive wires 2 and a holding portion 3 that holds the plurality of conductive wires 2 .

In this embodiment, the wiring member 1 for a rotating electric machine includes six conductive wires 2 and three terminals 4, and includes three electrodes 132 of the terminal block 13 and coil ends 113 of the coil pieces 112 of each phase. Connect each. As a wiring member for a rotating electrical machine, a so-called bus ring in which conductive wires are formed in a ring shape is known. It is a non-circular wiring member in which the wire 2 is not formed in a circular shape. In addition, the six conductive wires 2 are rigid enough to retain their shape. Also, the six conductive wires 2 are formed to have a circular cross-sectional shape perpendicular to the longitudinal direction.

The six conductive wires 2 are first and second U-phase lead wires 21, 22, first and second V-phase lead wires 23, 24, first and second W-phase lead wires 25, 26 and . Each conductive wire 2 has a conductor 2M made of a conductive metal and an electrically insulating coating layer 2I covering the surface of the conductor 2M. As the conductive metal, for example, copper or a copper alloy can be preferably used. An enamel coating can be preferably used as the coating layer 2I. The conductor 2M is a single wire (single metal conductor that is not a stranded wire), and in the present embodiment, a round single wire having a circular cross section is formed into a predetermined shape by press working. However, the conductor 2M may be formed of a flat single wire having a rectangular cross section.

The three terminals 4 consist of a U-phase terminal 41 , a V-phase terminal 42 and a W-phase terminal 43 . The U-phase terminal 41 has a plate portion 411 connected to the U-phase electrode on the terminal block, and a crimping portion 412 to which one ends of the first and second U-phase lead wires 21 and 22 are crimped together. are doing. A bolt insertion hole 410 is formed in the plate portion 411 , and a bolt (not shown) inserted through the bolt insertion hole 410 connects the plate portion 411 to the U-phase electrode of the terminal block. Similarly, the V-phase terminal 42 includes a plate portion 421 connected to the V-phase electrode on the terminal block and a crimping portion 422 to which one ends of the first and second V-phase lead wires 23 and 24 are crimped together. and A bolt insertion hole 420 is formed in the plate portion 421 , and a bolt (not shown) inserted through the bolt insertion hole 420 connects the plate portion 421 to the V-phase electrode of the terminal block. Similarly, the W-phase terminal 43 includes a plate portion 431 connected to the W-phase electrode on the terminal block and a crimping portion to which one ends of the first and second W-phase lead wires 25 and 26 are crimped together. 432. A bolt insertion hole 430 is formed in the plate portion 431 , and a bolt (not shown) inserted through the bolt insertion hole 430 connects the plate portion 431 to the W-phase electrode of the terminal block.

At the other end of each conductive wire 2 (the end opposite to the terminal 4), the covering layer 2I is removed over a predetermined length range to provide a connecting portion 5 in which the conductor 2M is exposed. The connecting portion 5 is welded to the corresponding coil end 113 of the coil piece 112 by TIG (Tungsten Inert Gas) welding, which is a kind of arc discharge welding method using inert gas. The surface of the connection portion 5 facing the coil end 113 is flattened by press working.

The holding portion 3 includes a holder 31 that holds each conductive wire 2 in a predetermined wiring shape, and a resin mold portion 32 formed by molding resin so as to partially cover the holder 31 and the conductive wire 2. there is The holder 31, together with a mold piece 91 described later, suppresses positional displacement of the conductive wire 2 due to resin pressure when molding the resin mold portion 32, and plays a role of holding the conductive wire 2 in a predetermined wiring shape.

4A and 4B are perspective views of the holder 31, and FIGS. 5A and 5B are perspective views of the conductor wires 2 arranged in the holder 31. FIG. The holder 31 is generally formed in a plate shape as a whole, and includes a body portion 311 covered with a first resin mold portion 321 to be described later, and first to third extension portions extending from the first resin mold portion 321 . It integrally has exit portions 312 to 313 . Hereinafter, the surface of the holder 31 on the stator core 111 side is referred to as the back surface, and the surface opposite to the stator core 111 is referred to as the front surface.

The first extending portion 312 is formed along the first U-phase lead wire 21 extending from the holding portion 3 to the coil end 113 side, and regulates the position of the first U-phase lead wire 21. It has a restricting portion 312a having a groove. The second extension portion 313 is formed along the second V-phase lead wire 24 and the first W-phase lead wire 25 extending from the holding portion 3 to the coil end 113 side. , 25, and a pair of restricting portions 313a . 313b, and a plate-like connecting portion 313c connecting both restricting portions 313a and 313b. One restricting portion 313a is connected to the edge of the main body portion 311, and the other restricting portion 313b is connected to one restricting portion 313a via a connecting portion 313c. Similarly, the third extending portion 314 includes the second U-phase lead wire 22, the first V-phase lead wire 23, and the second W-phase lead wire extending from the holding portion 3 to the coil end 113 side. 26 and having grooves for regulating the positions of the lead wires 22, 23, 26, a pair of regulating portions 314a. 314b, and a plate-like connecting portion 314c that connects both restricting portions 314a and 314b. One restricting portion 314a is connected to the edge of the body portion 311, and the other restricting portion 314b is connected to the one restricting portion 314a via a connecting portion 314c.

A plurality of regulating protrusions 311 a for regulating the position of the conductive wire 2 are formed on the front and back surfaces of the body portion 311 of the holder 31 . The restricting protrusion 311a has a groove that restricts the position of the conductive wire 2, and restricts the position of the conductive wire 2 by accommodating the conductive wire 2 in the groove. In the illustrated example, on the surface of the body portion 311, there are two restricting protrusions 311a for restricting the position of the second U-phase lead wire 21 and one restricting protrusion 311a for restricting the position of the first V-phase lead wire 23. and are formed. Also, on the rear surface of the body portion 311, two restricting protrusions 311a are formed to restrict the positions of the second V-phase lead wire 24 and the first W-phase lead wire 25. As shown in FIG. Further, on the surface of the main body portion 311, a positioning protrusion 311b is formed for positioning the holder 31 by coming into contact with the mold when the resin mold portion 32 is molded. Since this positioning projection 311b contacts the mold, it becomes a portion exposed to the outside of the resin mold portion 32 after the resin mold portion 32 is formed (see FIGS. 2A and 3).

The resin mold portion 32 includes a first resin mold portion 321 that collectively covers the main body portion 311 of the holder 31 and the six conductive wires 2 , and a second resin mold portion 321 that is spaced apart from the first resin mold portion 321 . It has second and third resin mold parts 322 and 323 . The second resin mold portion 322 is formed so as to cover the central portion of the restricting portion 313b of the second extending portion 313, the second V-phase lead wire 24, and the first W-phase lead wire 25. It serves to fix the lead wires 24 and 25 to the restricting portion 313b. Similarly, the third resin molded portion 323 includes the central portion of the restricting portion 314b of the third extending portion 314, the second U-phase lead wire 22, the first V-phase lead wire 23, and the second and the W-phase lead wire 26, and serves to fix the respective lead wires 22, 23, 26 to the restricting portion 314b.

In wiring member 1 for a rotating electrical machine according to the present embodiment, first resin mold portion 321 is provided with exposed portion 321 a for exposing conductive wire 2 . The exposed portion 321a is a portion where a mold piece 91, which will be described later, was arranged when the first resin mold portion 321 was molded, and is a concave portion formed by removing the mold piece 91 when the mold is released.

It is difficult to dissipate the heat generated in the conductive wire 2 in the portion covered with the resin molded portion 32, but by forming the exposed portion 321a, the heat generated in the conductive wire 2 can be dissipated. Heat is easily dissipated to the outside through the exposed portion 321a, and heat dissipation is improved. For example, when cooling oil is supplied to the rotary electric machine 10, the cooling oil enters the exposed portion 321a and comes into direct contact with the conductive wire 2 exposed at the bottom of the exposed portion 321a, thereby efficiently dissipating heat. done. In this embodiment, two exposed portions 321a are formed on each of the front and back surfaces, but the number of exposed portions 321a is not limited to this, and can be set as appropriate. In addition, in the present embodiment, the exposed portion 321a is formed in the first resin mold portion 321, but when the area covered by the conductive wire 2 becomes large in the second resin mold portion 322 or the third resin mold portion 323, Alternatively, an exposed portion may be formed in the second resin mold portion 322 or the third resin mold portion 323 .

(Manufacturing method of wiring member for rotary electric machine)
In the method of manufacturing the wiring member for a rotating electrical machine according to the present embodiment, first, as shown in FIGS. After that, the holder 31 and the conductive wire 2 arranged in the holder 31 are set in a mold to form the first to third resin mold parts 321 to 323 .

At this time, in the method of manufacturing a wiring member for a rotating electrical machine according to the present embodiment, a mold having projections is used, and while the projections are brought into contact with the outer surface of the conductor wires 2 to hold the conductor wires 2, the mold The resin mold portion 32 is formed by pouring resin into the .

FIG. 6(a) is a perspective view of a die piece 91 used as a protrusion in this embodiment, and FIG. . 7(a) and 7(b) are diagrams for explaining the formation of the exposed portion 321a by the mold piece 91. FIG.

The die piece 91 is detachably attached to the die body 92 of the die 9 . By making the mold pieces 91 detachable from the mold body 92, mold pieces 91 having different shapes can be applied according to the conductive wires 2 to be used, and versatility is improved. Note that the die piece 91 (projection) may be provided integrally with the die body 92 .

The die piece 91 has a concave contact surface 911 that curves along the contour of the conductive wire 2 . While the contact surface 911 is brought into contact with the outer surface of the conductive wire 2 to hold the conductive wire 2 , resin is poured into the mold 9 . It becomes possible to form the resin mold portion 32 (the first resin mold portion 321) while suppressing the occurrence of such a phenomenon.

Further, for example, if the contact surface of the mold piece 91 is flat, a thin resin layer called burr is formed so as to cover the conductive wire 2 at the bottom of the exposed portion 321a. This burr may be exfoliated by vibration and mixed into the rotary electric machine 10 as a foreign matter. Moreover, if the conductive wire 2 is covered with burrs, the heat dissipation will be deteriorated. Formation of such burrs is suppressed by forming the contact surface 911 into a curved shape along the outer shape of the conductive wire 2 as in the present embodiment.

Further, the mold piece 91 has a pair of edges 912 on both sides of the contact surface 911 that are continuous with the contact surface 911 and curved in a convex shape. By forming the edge portion 912 into a curved shape, it is possible to prevent the edge portion 912 from interfering with the conductive wire 2 and damaging the conductive wire 2 when the conductive wire 2 is set in the mold 9 .

In the present embodiment, the conductive wire 2 is held at a desired position by pressing the conductive wire 2 against the holder 31 with the die piece 91 . As shown in FIGS. 6(b) and 7(a) and (b), in the present embodiment, at least a portion of the mold piece 91 is positioned at a position facing the regulation projection 311a in the main body portion 311 of the holder 31. A metal die piece 91 is provided in the mold piece 91, and the conductive wire 2 is held by the contact surface 911 of the metal mold piece 91 and the groove of the restricting projection 311a.

All the conductive wires 2 covered with the resin mold portion 32 (here, the first resin mold portion 321) may be held by the mold piece 91 and the restricting projection 311a, but in this case, the mold 9 becomes complicated. Cost may be high. Therefore, the conductive wire 2 which is easily affected by the resin pressure, that is, the conductive wire 2 having a long wiring length in the resin mold portion 32 (here, the first resin mold portion 321) is replaced with the mold top 91 and the restricting projection 311a. should be kept with . That is, it is preferable to hold at least the conductive wire 2 having the longest wiring length in the resin mold portion 32 (here, the first resin mold portion 321) by the metal mold piece 91. FIG.

As shown in FIGS. 7A and 7B, when the mold 9 is released after the resin is poured into the mold 9, an exposed portion 321a is formed at the position where the mold piece 91 was arranged. and the first resin mold portion 321 is obtained. The second and third resin mold parts 322 and 323 may be formed simultaneously with the first resin mold part 321, or may be formed in separate processes after the first resin mold part 321 is formed. As described above, the wiring member 1 for a rotary electric machine according to the present embodiment is obtained.

(Actions and effects of the embodiment)
As described above, in the method of manufacturing a wiring member for a rotating electrical machine according to the present embodiment, the mold 9 having the mold pieces 91 as projections is used, and the mold pieces 91 are brought into contact with the outer surfaces of the conductive wires 2 . By pouring resin into the mold 9 while holding the conductive wires 2 in contact with each other, the resin mold portion 32 (here, the first resin mold portion 321) that partially covers the plurality of conductive wires 2 is formed. .

As a result, it is possible to prevent the conductive wires 2 from being displaced due to resin pressure during molding of the resin mold portion 32 (here, the first resin mold portion 321). In addition, since the recessed exposed portion 321a is formed at the place where the mold piece 91 is arranged, it is possible to efficiently dissipate the heat generated in the conductive wire 2 through the exposed portion 321a. It is possible to improve the heat dissipation of the heat generated in 2.

Further, by forming the contact surface 911 of the mold block 91 as a protrusion into a shape that curves along the outer shape of the conductive wire 2, the occurrence of burrs is suppressed, and the rotating electrical machine 10 is damaged by the burrs falling off. In addition to suppressing contamination by foreign matter, it is possible to increase the exposed portion of the conductive wire 2 and further improve heat dissipation.

(Summary of embodiment)
Next, technical ideas understood from the embodiments described above will be described with reference to the reference numerals and the like in the embodiments. However, each reference numeral and the like in the following description do not limit the constituent elements in the claims to the members and the like specifically shown in the embodiment.

[1] A wiring member for a rotating electric machine having a plurality of conductive wires (2) and connecting a coil end (113) of a stator (11) and an electrode (132) of a terminal block (13) in a rotating electric machine (10). In the manufacturing method of (1), a mold (9) having a protrusion (91) is used, and the protrusion (91) is brought into contact with the outer surface of the conductive wire (2). A method of manufacturing a wiring member for a rotating electrical machine, comprising: forming a resin mold portion (32) covering part of the plurality of conductive wires (2) by pouring resin into the mold (9) while holding the .

[2] The plurality of conductive wires (2) have a circular cross-sectional shape perpendicular to the longitudinal direction thereof, and the protrusion (91) is curved along the outer shape of the conductive wire (2). The contact surface (911) is brought into contact with the outer surface of the conductive wire (2) to hold the conductive wire (2), and the resin is placed on the mold (9). The method of manufacturing a wiring member for a rotating electrical machine according to [1], wherein the resin mold portion (32) is formed by pouring the

[3] In [2], the protrusion (91) has a pair of convex curved edges (912) on both sides of the contact surface (911) that are continuous with the contact surface (911). A manufacturing method of the described wiring member for a rotating electric machine.

[4] The projection (91) according to any one of [1] to [3], wherein the protrusion (91) is detachable from a mold body (92) of the mold (9). A method for manufacturing a wiring member for a rotating electric machine.

[5] The wiring member for rotating electric machine (1) has a holder (31) that holds the plurality of conductive wires (2), and the conductive wires (2) are held by the projections (91) in the holder (1). 31) to hold the conductive wires (2), and by pouring resin into the mold (9), at least part of the plurality of conductive wires (2) and the holder (31) The method for manufacturing a wiring member for a rotating electrical machine according to any one of [1] to [4], wherein the resin mold portion (32) covering a part of the wiring member is formed.

[6] A wiring member for a rotating electric machine having a plurality of conductive wires (2) and connecting a coil end (113) of a stator (11) and an electrode (132) of a terminal block (13) in a rotating electric machine (10). (1), having a resin mold part (32) covering a part of the plurality of conductive lines (2), wherein the resin mold part (32) has a concave shape exposing the conductive lines (2); A wiring member (1) for a rotating electric machine, in which an exposed portion (321a) of is formed.

Although the embodiments of the present invention have been described above, the embodiments described above do not limit the invention according to the scope of claims. Also, it should be noted that not all combinations of features described in the embodiments are essential to the means for solving the problems of the invention.

The present invention can be appropriately modified and implemented without departing from the gist thereof. For example, in the above-described embodiment, the conductive wire 2 is held by pressing the conductive wire 2 against the holder 31 with the die block 91, but the holder 31 is not essential and can be omitted. For example, it is possible to hold the conductive wire 2 by sandwiching the conductive wire 2 between a pair of protrusions (metal mold pieces 91).

DESCRIPTION OF SYMBOLS 1... Wiring member for rotary electric machines 2... Conductive wire 3... Holding part 31... Holder 311a... Regulating projection 32... Resin mold part 321... First resin mold part 321a... Exposed part 322... Second resin mold part 323... Second Resin molded portion 4 of 3 Terminal 5 Connection portion 9 Mold 91 Mold top 911 Contact surface 912 Edge 92 Mold main body 10 Rotating electric machine 11 Stator 111 Stator core 113 Coil end

Claims (4)

A method for manufacturing a wiring member for a rotating electrical machine having a plurality of conductive wires and connecting coil ends of a stator and electrodes of a terminal block in the rotating electrical machine, comprising:
Using a mold with protrusions,
forming a resin mold part covering a part of the plurality of conductive wires by pouring resin into the mold while holding the conductive wires by bringing the protrusions into contact with the outer surfaces of the conductive wires;
The plurality of conductive wires have a circular cross-sectional shape perpendicular to the longitudinal direction thereof,
the protrusion has a concave contact surface that curves along the contour of the conductive wire;
The resin mold portion is formed by pouring resin into the mold while holding the conductive wire by bringing the contact surface into contact with the outer surface of the conductive wire,
The protrusion has a pair of rounded edges that are convexly curved on both sides of the contact surface, and
The resin mold portion is formed with a recessed exposed portion for exposing the conductive wire, and the recessed exposed portion has rounded corners on both sides of a portion of the conductive wire exposed from the resin molded portion. shaped part is formed,
A method for manufacturing a wiring member for a rotating electric machine. The protrusion is detachable from the mold body of the mold,
The method of manufacturing the wiring member for a rotating electric machine according to claim 1 . The wiring member for a rotating electrical machine has a holder that holds the plurality of conductive wires,
A portion of the plurality of conductive wires and at least a portion of the holder are bonded by pouring resin into the mold while holding the conductive wires by pressing the conductive wires against the holder by the protrusions. Forming the resin mold part to cover,
3. The method of manufacturing a wiring member for a rotary electric machine according to claim 1 . A wiring member for a rotating electric machine having a plurality of conductive wires and connecting coil ends of a stator and electrodes of a terminal block in the rotating electric machine,
Having a resin mold part covering a part of the plurality of conductive wires,
The resin mold portion is formed with a recessed exposed portion for exposing the conductive wire , and the recessed exposed portion has rounded corners on both sides of a portion of the conductive wire exposed from the resin molded portion. shaped part is formed,
Wiring member for rotary electric machine.

Images