阅读说明：本技术 旋转电机用布线部件的配置构造 (Wiring member arrangement structure for rotating electrical machine ) 是由 梅津润 高桥范行 二森敬浩 于 2020-08-27 设计创作，主要内容包括：本发明提供能够抑制由振动引起的保持部的破损的旋转电机用布线部件的配置构造。一种配置构造,将旋转电机用布线部件(2)配置于被固定部件,旋转电机用布线部件(2)具有多个导电线(21～26)并连接旋转电机(1)中的定子(5)的线圈端部(520)与端子板(3)的电极(31～33),其中,旋转电机用布线部件(2)具备保持多个导电线(21～26)的保持部(201),该保持部(201)以一并地覆盖多个导电线(21～26)的方式将树脂进行模制而成,在保持部(201)与被固定部件之间设有由弹性体构成的缓冲部件(101),并且经由缓冲部件(101)将保持部(201)配置于被固定部件。(The invention provides a wiring component arrangement structure for a rotating electric machine, which can inhibit damage of a holding part caused by vibration. An arrangement structure is provided in which a wiring member (2) for a rotating electrical machine is arranged on a member to be fixed, the wiring member (2) for a rotating electrical machine has a plurality of conductive wires (21-26) and connects a coil end (520) of a stator (5) in the rotating electrical machine (1) and electrodes (31-33) of a terminal plate (3), wherein the wiring member (2) for a rotating electrical machine is provided with a holding section (201) that holds the plurality of conductive wires (21-26), the holding section (201) is molded with a resin so as to collectively cover the plurality of conductive wires (21-26), a buffer member (101) made of an elastic body is provided between the holding section (201) and the member to be fixed, and the holding section (201) is arranged on the member to be fixed via the buffer member (101).)

1. A wiring member for a rotating electrical machine, which is disposed on a fixed member, the wiring member for a rotating electrical machine having a plurality of conductive wires and connecting a coil end of a stator in the rotating electrical machine and an electrode of a terminal plate, wherein the wiring member for a rotating electrical machine is provided with a plurality of conductive wires,

the wiring member for a rotating electrical machine includes a holding portion for holding the plurality of conductive wires, the holding portion being formed by molding a resin so as to collectively cover the plurality of conductive wires,

a buffer member made of an elastic body is provided between the holding portion and the member to be fixed, and the holding portion is disposed on the member to be fixed via the buffer member.

2. The arrangement structure of the wiring member for the rotating electrical machine according to claim 1,

the buffer member is made of a material softer than the holding portion.

3. The arrangement structure of the wiring member for the rotating electrical machine according to claim 1 or 2,

the buffer member is fixed to at least one of the holding portion and the fixed member.

4. The arrangement structure of the wiring member for the rotating electrical machine according to claim 3,

the buffer member is formed of a sheet-like member that is adhesively fixed to at least one of the holding portion and the fixed member.

5. The arrangement structure of the wiring member for the rotating electrical machine according to claim 3,

the buffer member is integrally formed with the holding portion.

6. The arrangement structure of the wiring member for the rotating electrical machine according to any one of claims 1 to 5,

the fixed member is a stator core or a housing of the rotating electric machine.

Technical Field

The present invention relates to a wiring member arrangement structure for a rotating electrical machine.

Background

A wiring member for a rotating electric machine is known, which connects a coil end of a stator in the rotating electric machine to an electrode of a terminal plate. As such a wiring member for a rotating electric machine, a wiring member for a rotating electric machine is known which includes a plurality of conductive wires and a holding portion formed by molding a resin so as to collectively cover the plurality of conductive wires and holding the plurality of conductive wires.

In particular, in a wiring member for a rotating electric machine used for a rotating electric machine mounted on a vehicle, in order to suppress the influence of vibration, it has been studied to dispose a holding portion on a fixed member such as a stator core (see, for example, patent document 1).

Documents of the prior art

Patent document

Patent document 1: japanese patent No. 5902726

Disclosure of Invention

Problems to be solved by the invention

However, when the holding portion is disposed on the member to be fixed as described above, a gap due to a manufacturing error may be generated between the holding portion and the member to be fixed. When vibration is applied in a situation where the gap is generated, the holding portion may repeatedly collide with the member to be fixed, and the holding portion may be damaged.

Therefore, an object of the present invention is to provide a wiring member arrangement structure for a rotating electrical machine, which can suppress damage of a holding portion due to vibration.

Means for solving the problems

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a structure for disposing a wiring member for a rotating electrical machine, which disposes the wiring member for a rotating electrical machine on a fixed member, the wiring member for a rotating electrical machine having a plurality of conductive wires and connecting a coil end of a stator in the rotating electrical machine and an electrode of a terminal plate, wherein the wiring member for a rotating electrical machine includes a holding portion that holds the plurality of conductive wires, the holding portion is formed by molding a resin so as to collectively cover the plurality of conductive wires, a buffer member made of an elastic body is provided in the holding portion and the fixed member, and the holding portion is disposed on the fixed member via the buffer member.

The effects of the invention are as follows.

According to the present invention, it is possible to provide a wiring member arrangement structure for a rotating electrical machine capable of suppressing damage to a holding portion due to vibration.

Drawings

Fig. 1 shows a configuration example of a rotating electric machine including a configuration structure of 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 partially enlarged view of (a).

Fig. 2 is a structural view of the wiring member for the rotating electric machine, the terminal plate, and the stator core as viewed from the axial direction.

Fig. 3 is a perspective view showing a coil unit in which 4 coil pieces are combined.

Fig. 4 is a perspective view showing a part of the wiring member for the rotating electric machine and a linear portion of a part of the plurality of coil pieces attached to the stator core.

Fig. 5 shows the wiring member for the rotating electric machine, (a) is an axial view, (b) is a circumferential view, and (c) is a perspective view.

Fig. 6 (a) is a diagram showing the arrangement structure of the wiring member for the rotating electric machine according to the embodiment of the present invention, and (b) is a plan view seen from the lower surface side of the first holding portion.

Fig. 7 (a) and (b) are views showing the arrangement structure of the wiring members for the rotating electric machine according to one modification of the present invention.

Fig. 8 (a) and (b) are views showing the arrangement structure of the wiring members for the rotating electric machine according to one modification of the present invention.

Fig. 9 is a diagram showing an arrangement structure of wiring members for a rotating electric machine according to a modification of the present invention.

Description of the symbols

1-rotating electrical machine, 100-configuration structure of wiring member for rotating electrical machine, 101-buffer member, 2-wiring member for rotating electrical machine, 21-first U-phase wire (conductive wire), 22-second U-phase wire (conductive wire), 23-first V-phase wire (conductive wire), 24-second V-phase wire (conductive wire), 25-first W-phase wire (conductive wire), 26-second W-phase wire (conductive wire), 201-first holding portion (holding portion), 202-second holding portion, 203-third holding portion, 3-terminal plate, 31-first electrode (electrode), 32-second electrode (electrode), 33-third electrode (electrode), 5-stator, 51-stator core, 520-coil end portion.

Detailed Description

[ embodiment ]

Embodiments of the present invention will be described below with reference to the drawings.

Fig. 1 shows a configuration example of a rotating electric machine including a configuration structure of a wiring member for a rotating electric machine according to the present embodiment, where (a) is an overall view and (b) is a partially enlarged view of (a).

The rotating electric machine 1 includes a wiring member 2 for the rotating electric machine, a terminal plate 3, a rotor (rotor) 4 having a shaft 11 inserted through the center thereof, and a stator (stator) 5 disposed so as to surround the rotor 4. The rotor 4 is formed by embedding a plurality of magnets 42 in a rotor core 41 made of soft magnetic metal, and rotates together with the shaft 11. The stator 5 has a stator core 51 made of a soft magnetic metal and a plurality of coil pieces 52.

The rotating electric machine 1 is mounted on a vehicle driven by electric power, such as an electric vehicle or a so-called hybrid vehicle. In the following description, the rotating electrical machine 1 is described as being used as a motor, but the rotating electrical machine 1 may be used as a generator. In the following description, a direction parallel to the rotation axis O of the shaft 11 is referred to as an axial direction, a direction passing through the rotation axis O and perpendicular to the rotation axis O is referred to as a radial direction, and directions perpendicular to the axial direction and the radial direction are referred to as a circumferential direction.

Fig. 2 is a structural view of the wiring member 2 for the rotating electric machine, the terminal plate 3, and the stator core 51 as viewed from the axial direction. Fig. 3 is a perspective view showing a coil unit 50 in which 4 coil pieces 52 are combined. In the following description, for convenience of explanation, one of the two axial sides of the stator core 51 on which the wiring members 2 for the rotating electric machine and the terminal plate 3 are disposed is referred to as an upper side, and the opposite side is referred to as a lower side. The upper side and the lower side are not specifically the upper and lower sides in the vertical direction in the state of being mounted on the vehicle.

The terminal plate 3 includes a base 30 made of resin and first to third electrodes 31 to 33. The base 30 is fixed to a case, not shown, that houses the stator 5, and a three-phase ac current is supplied from a controller to the first electrode 31 to the third electrode 33.

The stator core 51 integrally includes a cylindrical back yoke 511 and a plurality of teeth 512 protruding radially inward from the back yoke 511. In the present embodiment, 72 teeth 512 are provided at equal intervals in the circumferential direction, and notches 510 are formed between circumferentially adjacent teeth 512.

Each coil piece 52 has: a pair of linear body portions 521 housed in the notches 510 of the stator core 51; a pair of inclined portions 522 projecting from the slot 510 and arranged on the upper side of the stator core 51; a pair of linear portions 523 extending in the axial direction further upward from the upper end portion of each inclined portion 522; and a connecting portion 524 connecting the pair of main bodies 521 to the lower side of the stator core 51. The inclined portion 522 is inclined at an obtuse angle with respect to the main body portion 521.

The coil piece 52 is made of a conductive metal 52M having good conductivity such as copper or aluminum, and an insulating coating layer 52I covering the surface of the conductive metal 52M. In the present embodiment, the conductive metal 52M is a flat single wire having a rectangular cross section, and the coating layer 52I is formed of an enamel coating. In the coil end 520 which is the upper end of the straight portion 523, the coating layer 52I is removed and the conductive metal 52M is exposed.

In the present embodiment, 288 coil pieces 52 are attached to the stator core 51, and 8 main bodies 521 are accommodated in each notch 510. The coil ends 520 of the 288 coil pieces 52 are welded to each other to constitute two sets of three-phase (U-phase, V-phase, and W-phase) stator windings. And, the phase of the electrical angle of the first group of three-phase stator windings and the second group of three-phase stator windings of the two groups of three-phase stator windings deviates from a predetermined angle. The first three-phase stator winding group is formed on the outer peripheral side of the stator core 51 than the second three-phase stator winding group. Further, the welded portion between the coil ends 520 may be coated with resin.

Fig. 4 is a perspective view showing a part of the wiring member 2 for the rotating electric machine and the straight portions 523 of a part of the plurality of coil pieces 52 attached to the stator core 51. Fig. 5 shows the wiring member 2 for the rotating electric machine, where (a) is an axial view, (b) is a circumferential view, and (c) is a perspective view.

The wiring member 2 for the rotating electric machine has 6 conductive wires and 3 terminals, and connects the first electrode 31 to the third electrode 33 of the terminal plate 3 to the coil end 520 of the coil piece 52 of each phase. As a wiring member for a rotating electrical machine, a so-called slip ring in which a conductive wire is formed in a ring shape is known, but unlike the slip ring, the wiring member 2 for a rotating electrical machine according to the present embodiment is an acyclic wiring member in which a conductive wire is not formed in a ring shape. The 6 conductive wires have high rigidity to such an extent that the shape thereof can be maintained.

The 6 conductive wires are composed of a first U-phase wire 21 and a second U-phase wire 22, a first V-phase wire 23 and a second V-phase wire 24, and a first W-phase wire 25 and a second W-phase wire 26. The 3 terminals include a U-phase terminal 27, a V-phase terminal 28, and a W-phase terminal 29. The U-phase terminal 27 includes a plate portion 271 connected to the first electrode 31 of the terminal plate 3, and a caulking portion 272 for caulking the first U-phase lead 21 and the second U-phase lead 22 together. The plate portion 271 has a bolt insertion hole 270, and the plate portion 271 is connected to the first electrode 31 by a bolt 34 (see fig. 2) inserted through the bolt insertion hole 270.

Similarly, the V-phase terminal 28 includes a plate portion 281 connected to the second electrode 32 of the terminal plate 3 and a caulking portion 282 for caulking the first V-phase lead 23 and the second V-phase lead 24 together. The plate portion 281 is formed with a bolt insertion hole 280, and the plate portion 281 is connected to the second electrode 32 by a bolt 35 (see fig. 2) inserted into the bolt insertion hole 280. Similarly, the W-phase terminal 29 includes a plate portion 291 connected to the third electrode 33 of the terminal plate 3 and a caulking portion 292 for caulking the first W-phase lead wire 25 and the second W-phase lead wire 26 together. A bolt insertion hole 290 is formed in the plate portion 291, and the plate portion 291 is connected to the third electrode 33 by a bolt 36 (see fig. 2) inserted through the bolt insertion hole 290.

The first U-phase lead wire 21, the first V-phase lead wire 23, and the first W-phase lead wire 25 electrically connect the terminals 27, 28, and 29 of the respective phases to the coil ends 520 of the coil pieces 52 corresponding to the ends of the U-phase, V-phase, and W-phase stator windings of the first group of three-phase stator windings. The second U-phase lead wire 22, the second V-phase lead wire 24, and the second W-phase lead wire 26 electrically connect the terminals 27, 28, and 29 of the respective phases to the coil ends 520 of the coil pieces 52 corresponding to the ends of the U-phase, V-phase, and W-phase stator windings of the second three-phase stator winding set.

The surfaces of the conductors 2M made of conductive metal of the first U-phase lead wire 21 and the second U-phase lead wire 22, the first V-phase lead wire 23 and the second V-phase lead wire 24, and the first W-phase lead wire 25 and the second W-phase lead wire 26 are coated with an insulating coating layer 2I. As the conductive metal, for example, copper or a copper alloy can be suitably used. As the clad layer 2I, an enamel coating can be suitably used. The conductor 2M is a single wire (a 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. The conductor 2M may be formed of a flat element wire having a rectangular cross section.

In the wiring member 2 for the rotating electric machine, the first U-phase lead 21 and the second U-phase lead 22, the first V-phase lead 23 and the second V-phase lead 24, and the first W-phase lead 25 and the second W-phase lead 26 are held by the first holding portion 201. The first holding portion 201 is an embodiment of the holding portion of the present invention, and is formed by molding a resin so as to collectively cover the first U-phase lead wire 21 and the second U-phase lead wire 22, the first V-phase lead wire 23 and the second V-phase lead wire 24, and the first W-phase lead wire 25 and the second W-phase lead wire 26. The second V-phase lead 24 and the first W-phase lead 25 are held by the second holding portion 202. The first U-phase lead wire 21, the first V-phase lead wire 23, and the second W-phase lead wire 26 are held by the third holding portion 203. The first holding portion 201 to the third holding portion 203 are formed separately from each other, the first holding portion 201 and the second holding portion 202 are coupled by a coupling portion 204, and the first holding portion 201 and the third holding portion 203 are coupled by a coupling portion 205. The first to third holding portions 201 to 203 and the coupling portions 204 and 205 are made of resin that is integrally molded by injection molding. The first to third holding portions 201 to 203 and the connection portions 204 and 205 preferably have rigidity for holding the conductive wire, and a material made of PPS (polyphenylene sulfide), for example, can be used.

The first U-phase wire 21, the first V-phase wire 23, and the first W-phase wire 25 have: projecting portions 211, 231, 251 projecting from the first holding portion 201 in the axial direction and connected to the terminals 27, 28, 29 of the respective phases, respectively; extensions 212, 232, 252 that protrude from the first holding portion 201 and extend in a direction perpendicular to the axial direction; axial extensions 213, 233, 253 extending axially upward from the ends of the extensions 212, 232, 252; and connection portions 214, 234, 254 welded to the coil ends 520 of the coil pieces 52.

The connection portions 214, 234, and 254 extend in the axial direction from the upper end portions of the axial extension portions 213, 233, and 253 further upward, and are welded to the coil end portions 520 of the coil pieces 52 corresponding to the end portions of the U-phase, V-phase, and W-phase stator windings of the first three-phase stator winding group protruding in the axial direction from the stator core 51. The first U-phase lead 21, the first V-phase lead 23, and the first W-phase lead 25 have the coating layer 2I removed within a predetermined length range including the connection portions 214, 234, and 254, and the conductor 2M is exposed.

The second U-phase wire 22, the second V-phase wire 24, and the second W-phase wire 26 have: extension portions 221, 241, 261 extending in the axial direction from the first holding portion 201 and connected to the terminals 27, 28, 29 of the respective phases, respectively; extensions 222, 242, 262 protruding from the first holding portion 201 and extending in a direction perpendicular to the axial direction; axial extensions 223, 243, 263 extending axially upward from the ends of the extensions 222, 242, 262; radial extensions 224, 244, 264 further extending radially from the ends of the axial extensions 223, 243, 263 and toward the inside of the stator core 51; and connection portions 225, 245, 265 bent in the radial direction in the circumferential direction of the stator core 51 and welded to the coil ends 520 of the coil pieces 52.

The connection portions 225, 245, 265 extend in the circumferential direction from the radially inner ends of the radially extending portions 224, 244, 264, and are welded to the coil ends 520 of the coil pieces 52 corresponding to the ends of the U-phase, V-phase, and W-phase stator windings of the second three-phase stator winding protruding in the axial direction from the stator core 51. The second U-phase lead wire 22, the second V-phase lead wire 24, and the second W-phase lead wire 26 have their coating layers 2I removed within a predetermined length range including the connection portions 225, 245, and 265, and the conductor 2M is exposed. The connecting portions 225, 245, 265 are bent from radially inner ends of the radially extending portions 224, 244, 264 toward the circumferential direction of the stator core 51, and extend in the circumferential direction.

The connection portions 225, 245, 265 of the second U-phase wire 22, the second V-phase wire 24, and the second W-phase wire 26 are connected to the coil end portion 520 at positions radially inward of the connection portions 214, 234, 254 of the first U-phase wire 21, the first V-phase wire 23, and the first W-phase wire 25, respectively. The facing surfaces of the connection portions 214, 225, 234, 245, 254, 265 facing the coil end 520 are formed into a flat shape by press working.

In the present embodiment, the connection portions 214, 225, 234, 245, 254, 265 and the coil end portion 520 of the coil piece 52 are welded by TIG (Tungsten Inert Gas) welding, which is one of welding methods performed by arc discharge using an Inert Gas. In TIG welding, the stator 5 is fixed to a jig so that the coil end 520 protrudes upward in the vertical direction from the stator core 51, and an electrode of a welding gun faces the coil end 520 in the axial direction.

Taking the second U-phase lead wire 22 and the first W-phase lead wire 25 as an example, as shown in fig. 4, in TIG welding, the coil end 520 protrudes in the axial direction longer than the connection portions 225 and 254, and the coil end 520 at a portion protruding in the axial direction than the connection portions 225 and 254 is welded to the connection portions 225 and 254 by heat fusion generated by electric discharge. The molten metal having melted the tip portion of the coil end 520 flows down and contacts the upper side surface 225a of the connection portion 226 of the second U-phase lead wire 22 and the upper surface 255a of the connection portion 254 of the first W-phase lead wire 25. However, the position of the tip end surface of the coil end 520 in the axial direction may be the same as the position of the upper side surface 225a of the connection portion 225 and the position of the upper surface 254a of the connection portion 254. That is, the coil end 520 may not protrude in the axial direction from the connection portions 225 and 254.

The first holding portion 201 includes a main body portion 201a holding 6 conductive wires, and a plurality of protruding portions 201b to 201d provided so as to protrude from the main body portion 201 so as to cover the periphery of the conductive wires (extending portions 212, 222, 232, 242, 252, 262) extending from the main body portion 201a to the coil end portion 520 side. In the present embodiment, the first protrusion 201b is provided so as to cover the periphery of the portion of the extension 222 protruding from the main body 201 a. The second projecting portion 201c is provided so as to collectively cover the peripheries of the portions of the extending portions 242 and 252 extending from the main body portion 201 a. Further, the third protrusion 201d is provided so as to collectively cover the peripheries of the portions of the extending portions 212, 232, and 262 extending from the main body portion 201 a. The respective protruding portions 201b to 201d are integrated with the main body portion 201a so as to protrude from the main body portion 201a in a direction perpendicular to the axial direction.

The first holding portion 201 includes a plurality of terminal side protruding portions 201e to 201g provided so as to protrude from the main body portion 201 so as to cover the periphery of the conductive lines (protruding portions 211, 221, 231, 241, 251, 261) extending from the main body portion 201a toward the terminals 27, 28, 29 of the respective phases. In the present embodiment, the first terminal side protruding portion 201e is provided so as to collectively cover the periphery of the protruding portion of the protruding portions 211 and 221 protruding from the body portion 201 a. The second terminal side protrusion 201f is provided so as to collectively cover the periphery of the protrusion portion of the protrusion 231, 241 protruding from the body portion 201 a. Further, the third terminal side protruding portion 201g is provided so as to collectively cover the periphery of the protruding portions 251 and 261 protruding from the body portion 201 a. The terminal-side protrusions 201e to 201g are integrally formed with the body 201a so as to protrude from the body 201a in the axial direction.

(arrangement structure of wiring member for rotating electric machine)

As shown in fig. 1 (b) and fig. 6 (a) and (b), the structure 100 for disposing the wiring member for rotating electric machine is a structure in which the wiring member for rotating electric machine 2 is disposed in the stator core 51 as a fixed member. Note that, although the case where the fixed member is the stator core 51 is described here, the fixed member is not limited to this, and may be a case that houses the stator core 51. The fixed member may be an insulating plate or a metal plate disposed on the stator core 51.

The arrangement structure 100 of the wiring member for the rotating electric machine according to the present embodiment is configured such that the buffer member 101 made of an elastic body is provided between the first holding portion 201 and the stator core 51, and the first holding portion is fixed to the stator core 51 via the buffer member 101.

The buffer member 101 is formed of a sheet-like member having elasticity, and serves to suppress the first holding portion 201 from repeatedly colliding with the stator core 51 due to vibration and being damaged. In order to absorb the vibration of the first holding portion 201 due to the vibration, it is preferable to use a member having flexibility as the buffer member 101, and a member made of a material softer than the stator core 51 and the first holding portion 201 as the fixed members may be used.

Further, since the ambient temperature increases during use, it is preferable to use a member made of a material resistant to high temperature (e.g., 150 to 200 ℃). When the rotating electrical machine 10 is an oil-cooled motor, it is preferable to use a member having excellent oil resistance as the buffer member 101 because the member comes into contact with cooling oil during use. Examples of the material satisfying such characteristics include fluororubber, silicone rubber, acrylic rubber, and hydrogenated nitrile rubber.

The thickness of the cushioning member 101 may be set to a thickness that can sufficiently suppress the influence of vibration on the first holding portion 201, in consideration of the elastic modulus of the material used for the cushioning member 101, and the like. Specifically, when a member made of rubber such as fluororubber is used as the cushioning member 101, the thickness thereof is preferably 0.5mm or more and 5mm or less, and more preferably 1mm or more and 2mm or less.

In the present embodiment, the cushioning member 101 includes a main body portion protecting portion 101a covering the bottom surface of the main body portion 201a, and first to third projecting portion protecting portions 101b to 101d covering the bottom surfaces of the first to third projecting portions 201b to 201d, and is provided so as to cover substantially the entire bottom surface of the first protecting portion 201. The cushion member 101 may not be integrally formed, and for example, the main body portion protecting portion 101a may be separated from the first to third projecting portion protecting portions 101b to 101 d.

The buffer member 101 is fixed to at least one of the first holding portion 201 and the stator core 51. In the present embodiment, one surface (upper surface) of the buffer member 101 is bonded and fixed to the bottom surface of the first holding portion 201 in advance, and the other surface (lower surface) of the buffer member 101 is bonded and fixed to the upper surface of the stator core 51 when the wiring member 2 for the rotating electrical machine is mounted. However, the present invention is not limited to this, and the buffer member 101 may be fixed to the upper surface of the stator core 51 by bonding, and the first holding portion 201 and the buffer member 101 may be fixed to each other when the wiring member 2 for the rotating electric machine is mounted.

Preferably, when the wiring member 2 for the rotating electric machine is mounted, the buffer member 101 is deformed so as to be crushed by pressing the first holding portion 201 toward the stator core 51. This suppresses the vibration-induced wobbling of the first holding portion 201, and further suppresses damage to the first holding portion 201 due to the vibration. Further, since the buffer member 101 is held by pressing the first holding portion 201 against the stator core 51, the buffer member 101 may be adhesively fixed to only one of the first holding portion 201 and the stator core 51. In the case where the buffer member 101 is not fixed to both the first holding portion 201 and the stator core 51, the buffer member 101 may be detached due to a positional deviation caused by vibration or the like, and therefore, the buffer member 101 is preferably fixed by adhesion to at least one of the first holding portion 201 and the stator core 51.

(modification example)

In the present embodiment, the cushion member 101 has substantially the same shape as the bottom surface of the first holding portion 201, and the cushion member 101 is provided so as to cover substantially the entire bottom surface of the first holding portion 201, but as shown in fig. 7 (a) and (b), the cushion member 101 may be provided so as to cover only a part of the bottom surface of the first holding portion 201. As shown in fig. 7 (a), the buffer member 101 may be provided at the center of the bottom surface of the first holding portion 201, or a plurality of buffer members 101 may be provided separately as shown in fig. 7 (b). This reduces the amount of the buffer member 101 used, thereby reducing the cost. The embodiments (a) and (b) of fig. 7 are particularly suitable for the case where the cushion member 101 is fixed to the first holding portion 201 in advance.

As shown in fig. 8 (a), the buffer member 101 may be provided so as to protrude laterally from the bottom surface of the first holding portion 201. In this case, it is preferable that the buffer member 101 is firmly fixed to the stator core 51 so as not to be peeled off by the influence of vibration from the edge portion of the buffer member 101 which is not pressed by the first holding portion 201. In this case, too, the edge of the buffer member 101 can be firmly fixed to the stator core 51 by screwing or the like. The embodiment (a) of fig. 8 is particularly suitable for the case where the buffer member 101 is fixed to the stator core 51 in advance.

As shown in fig. 8 (b), the buffer members 102 and 103 may be provided between the second holding portion 202 and the third holding portion 203 and the stator core 51. This suppresses damage to the second holding portion 202 and the third holding portion 203 due to vibration. The buffer members 102 and 103 may be fixed to at least one of the second holding portion 202 and the third holding portion 203 and the stator core 51.

In the present embodiment, the case where the cushioning material 101 is provided on the upper surface of the stator core 51 is described, but the following case is also conceivable: as shown in fig. 9, a step is provided on the bottom surface of the first holding portion 201, and a step surface 201h facing the side surface of the stator core 51 is brought into contact with the side surface of the stator core 51, so that the first holding portion 201 is provided to cover the corner of the stator core 51. In such a case, in order to suppress the first holding portion 201 from colliding with the side surface of the stator core 51 due to vibration, it is preferable to provide the buffer member 101 also between the stepped surface 201h and the side surface of the stator core 51, and to provide the buffer member 101 on both the upper surface and the side surface of the stator core 51. Here, 1 piece of the cushioning member 101 is provided over the upper surface and the side surfaces of the stator core 51, but the cushioning member 101 provided on the upper surface of the stator core 51 may be separate from the cushioning member 101 provided on the side surfaces of the stator core 51.

In the present embodiment, the sheet-shaped cushioning material 101 is adhesively fixed to the first holding portion 201 and the stator core 51, but the present invention is not limited to this, and the cushioning material 101 may be integrally molded with the first holding portion 201 by two-color molding. In the two-color molding, the resin constituting the first holding portion 201 and the resin constituting the cushion member 101 may be poured into a mold to integrally mold the first holding portion 201 and the cushion member 101.

Although not mentioned in the above embodiment, a resin mold may be further provided so as to cover the stator core 51, the coil pieces 52, and a part of the wiring member 2 for the rotating electric machine, which are fixed members. In the present embodiment, the first holding portion 201 is fixed to the stator core 51 as the fixed member via the buffer member 101, and therefore, it is possible to suppress the occurrence of positional deviation of the wiring member 2 for the rotating electric machine due to the resin pressure at the time of resin molding.

(action and Effect of the embodiment)

As described above, in the arrangement structure 100 of the wiring member for the rotating electric machine according to the present embodiment, the buffer member 101 made of an elastic body is provided between the first holding portion 201 and the stator core 51 as the fixed member, and the first holding portion 201 is arranged on the stator core 51 via the buffer member 101. Thus, even when a gap is formed between the first holding portion 201 and the stator core 51 due to a manufacturing error or the like, the gap can be filled with the cushioning member 101, and the first holding portion 201 can be prevented from colliding with the stator core 51 and being damaged.

(summary of the embodiment)

Next, the technical ideas grasped from the above-described embodiments will be described with reference to the symbols and the like in the embodiments. Note that the reference numerals and the like in the following description do not limit the constituent elements in the claims to those specifically shown in the embodiments.

[1] A wiring member arrangement structure 100 for a rotating electrical machine, wherein a wiring member 2 for a rotating electrical machine is arranged on a fixed member, the wiring member 2 for a rotating electrical machine has a plurality of conductive wires 21-26 and connects a coil end 520 of a stator 5 in the rotating electrical machine 1 and electrodes 31-33 of a terminal plate 3, wherein the wiring member 2 for a rotating electrical machine is provided with a holding part 201 for holding the plurality of conductive wires 21-26, the holding part 201 is molded with a resin so as to collectively cover the plurality of conductive wires 21-26, a buffer member 101 made of an elastic body is provided between the holding part 201 and the fixed member, and the holding part 201 is arranged on the fixed member via the buffer member 101.

[2] According to the arrangement structure 100 of the wiring member for the rotating electric machine recited in item [1], the buffer member 101 is made of a material softer than the holding portion 201.

[3] According to the arrangement structure 100 of the wiring member for the rotating electric machine recited in item [1] or [2], the buffer member 101 is fixed to at least one of the holding portion 201 and the fixed member.

[4] According to the arrangement structure 100 of the wiring member for the rotating electric machine recited in item [3], the buffer member 101 is formed of a sheet-like member that is adhesively fixed to at least one of the holding portion 201 and the fixed member.

[5] According to the arrangement structure 101 of the wiring member for the rotating electric machine described in [3], the buffer member 101 is integrally formed with the holding portion 201.

[6] The arrangement structure 100 of the wiring member for the rotating electric machine according to any one of [1] to [5], wherein the fixed member is the stator core 51 or the housing of the rotating electric machine 1.

The embodiments of the present invention have been described above, but the embodiments described above do not limit the invention of the claims. Note that all combinations of features described in the embodiments are not necessarily required to solve the problems of the invention. The present invention can be modified and implemented as appropriate without departing from the scope of the invention.