JP2010239694A - Fixing member of stator winding and rotary electric machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fixing member of a stator winding which is interposed between a stator winding of a rotary electric machine and a stator core and is also suppressed in the removal thereof, and to provide a rotary electric machine. <P>SOLUTION: In the rotary electric machine 1 including a stator core 30 and a stator winding 4, the stator member 5 of the stator winding 4 is intervened between at least one end face of the stator core 30 and a turn part 45 of the stator winding 4 at the stator 3 to regulate the displacement between the stator winding 4 and the stator core 30; and the stator core 30 includes a plurality of circumferentially arranged split cores, and the stator member 5 includes teeth 52 regulating the displacement between the stator winding 4 and the stator core 30, and body parts 51 fitted with the radial ends of the teeth 52. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a stator winding fixing member and a rotating electrical machine that regulate a positional deviation between a stator core and a stator winding.

In recent years, rotating electric machines used as electric motors and generators have been required to be small and have high output and improved quality.
For example, in a rotating electrical machine mounted on a vehicle, a space for mounting the rotating electrical machine in an engine room of the vehicle is becoming smaller, and an improvement in power generation output due to an increase in vehicle load is required. There is also a need for improved reliability.
Patent Documents 1 and 2 disclose a rotating electrical machine in which an insulating spacer (fixing member) is installed between a stator core and a stator winding.

  In recent years, a stator core of a rotating electrical machine in which a plurality of divided cores are arranged in the circumferential direction has been used. In the stator core using this divided core, the insulating spacers are inserted at least on both sides in the circumferential direction across the circumferential contact portion (contact surface) of the divided core. As a specific example of this insulating spacer, as shown in FIG. 14, a substantially U-shaped insulating spacer that sandwiches the stator winding can be cited.

  The stator core is formed by combining a large number of divided cores, and a large number of insulating spacers are required to form a stator of one rotating electrical machine. As a result, there is a problem that the cost due to the number and assembly of the insulating spacers increases. Specifically, in the case shown in FIG. 14, the insulating spacer is assembled in a state of straddling the circumferential contact portion (contact surface) of the split core. For this reason, the number of insulating spacers is the same as the number of contact portions in the circumferential direction of the split core.

  Furthermore, the conventional insulating spacer is only inserted between the stator core and the stator winding, and is not supported by both of them. For this reason, there is a possibility that the insulating spacer is displaced or dropped due to vibration, heat, mechanical stress or the like when the rotating electric machine is used. When the insulating spacer is removed, the stator winding and the stator core come into contact with each other, and the winding is damaged due to a decrease in the insulation performance of the stator winding constituting the stator winding and stress such as vibration. There is a possibility that the reliability of the rotating electrical machine is lowered.

JP 2000-166158 A JP 2006-33918 A

  The present invention has been made in view of the above circumstances, and provides a stator member for fixing a stator winding and a rotating electrical machine that are interposed between a stator winding and a stator core of a rotating electrical machine and are prevented from falling off. This is the issue.

  As a result of repeated studies by the present inventor in order to solve the above-described problems, the above-described configuration is such that the fixing member of the stator winding is interposed between the stator core and the stator winding at a number of locations at the same time. I found that the problem could be solved.

  That is, the fixing member of the stator winding according to the first aspect of the present invention has a depth direction that faces the rotor that forms a plurality of magnetic poles alternately different in the circumferential direction on the inner circumferential side or the outer circumferential side. A stator core having a plurality of radially matching slots in the circumferential direction; a slot accommodating portion accommodated in a different slot in the circumferential direction; and a turn portion connecting the slot accommodating portions to each other outside the slot. A stator winding formed by winding a plurality of conductive wires around the stator core, and a stator of a rotating electric machine provided between at least one end surface of the stator core and a turn portion of the stator winding. A stator winding fixing member that regulates the transition between the stator winding and the stator core, and the stator core includes a plurality of divided cores arranged in the circumferential direction, and the fixing members are arranged in the circumferential direction. Stator intervening on both sides of the contact part of the two split cores A tooth portion that regulates the transition of the wire and the stator core, and a main body portion that extends along the circumferential direction over at least four divided cores arranged in the circumferential direction and to which the radial end portion of the tooth portion is fixed. It is characterized by that.

  The fixing member for the stator winding according to the first aspect of the present invention is interposed between the turn portion and the end face of the stator core to regulate the transition of the stator winding and the stator core. And the fixing member of this invention becomes a structure which the tooth | gear part of a fixing member interposes in multiple places in the circumferential direction of a stator winding | coil. And the radial direction from which each of the plurality of tooth portions is different is different. As a result, the fixing member of the stator winding of the present invention can be prevented from falling off between the stator winding and the stator core.

Furthermore, the fixing member of the stator winding of the present invention has a configuration in which the teeth portion of the fixing member is interposed over a plurality of locations in the circumferential direction of the stator winding, and the number necessary for forming the stator and Demonstrates the effect of reducing assembly costs.
As a result, even when vibration, heat, mechanical stress, or the like is applied to the rotating electrical machine using the stator winding fixing member of the present invention, the fixing member does not fall off. As a result, a decrease in performance of the rotating electrical machine can be suppressed. Furthermore, the number of parts and the cost required for assembly can be reduced.

  The fixing member for the stator winding according to the second aspect of the present invention is characterized in that the main body portion extends over the entire circumference. The fixing member of the present invention according to claim 2 can reduce the number of fixing members required on one end face side of the stator core because the main body portion extends over the entire circumference. As a result, the number and assembly costs required when forming the stator can be reduced. Furthermore, dropping of the fixing member from between the stator winding and the stator core is suppressed.

  The fixing member of the stator winding according to the third aspect of the present invention is characterized in that the fixing member is formed such that a portion to which the tooth portion of the main body portion is fixed can be shifted in the radial direction. In the fixing member according to the third aspect of the present invention, the portion to which the tooth portion of the main body portion is fixed is formed so as to be capable of shifting in the radial direction. That is, the fixing member of the present invention can be assembled in a state where the stator winding is assembled to the stator core. Specifically, when the stator winding is assembled to the stator core and the tooth portion of the fixing member is interposed (inserted) between the turn portion and the end surface of the stator core, the tooth portion is As a result of the fixed portion shifting in the radial direction, assembly can be performed at a predetermined position.

  According to a fourth aspect of the present invention, there is provided a stator winding fixing member having a notch in at least one of the radial directions of a portion sandwiched between portions where the tooth portions of the main body portion are fixed. The fixing member of the present invention according to claim 4 has a notch in at least one of the radial directions of the portion sandwiched by the portion where the tooth portion of the main body portion is fixed, so that the tooth portion of the main body portion is fixed. The part can be shifted in the radial direction.

  In the stator winding fixing member according to the fifth aspect of the present invention, the portion sandwiched between the portions of the main body portion where the tooth portions are fixed is thinner than the portion where the tooth portions are fixed. It is characterized by that. The fixing member of the present invention according to claim 5 is such that the portion sandwiched between the portions of the main body portion where the tooth portions are fixed is thinner than the other portions, so that the tooth portions of the main body portion are fixed. The formed portion can be shifted in the radial direction.

  The fixing member of the stator winding of the present invention according to claim 6 is such that the portion sandwiched between the portions of the main body portion where the tooth portions are fixed is softer than the material forming the portion where the tooth portions are fixed. It is formed by these. The fixing member according to the sixth aspect of the present invention is such that the portion sandwiched between the portions where the tooth portions of the main body portion are fixed is formed of a softer material than the other portions. The portion to which the portion is fixed can be shifted in the radial direction.

  The fixing member for the stator winding according to the seventh aspect of the present invention is characterized in that ends adjacent in the circumferential direction are fixed to each other. In the fixing member of the present invention according to claim 7, the end portions adjacent to each other in the circumferential direction are fixed to each other, so that the main body portion is continuous in the circumferential direction, and the stator winding and the stator of the fixing member Omission from the core is suppressed.

  Here, the method of fixing the end portions adjacent in the circumferential direction is not particularly limited. For example, a diameter stop portion in which a protrusion is formed at one end and the protrusion is locked at the other end. , A method of fixing both ends with separate members, and a method of joining both ends together by welding or the like.

  The fixing member for the stator winding according to the eighth aspect of the present invention is characterized in that the tooth portion and the main body portion are integrally formed. In the fixing member according to the eighth aspect of the present invention, the tooth portion and the main body portion are integrally formed, and an increase in cost required for manufacturing the fixing member can be suppressed.

  A stator winding fixing member according to a ninth aspect of the present invention is characterized in that a tooth portion and a main body portion are joined. In the fixing member of the present invention according to claim 9, the tooth part and the main body part are joined, and the tooth part and the main body part can be formed of different materials. Furthermore, the material and shape of each of the plurality of tooth portions can be different.

  The fixing member for the stator winding according to the tenth aspect of the present invention is fixed to at least one of the stator core and the stator winding. According to the tenth aspect of the present invention, the fixing member of the present invention is fixed to at least one of the stator core and the stator winding, and the falling of the fixing member from between the stator winding and the stator core is suppressed.

  A rotating electrical machine according to an eleventh aspect of the present invention includes the stator winding fixing member according to any one of the first to tenth aspects, and the rotating electrical machine stator according to the eleventh aspect. And That is, the fixing member is prevented from falling off between the stator winding and the stator core, and the cost required for itself and assembly is reduced.

It is the figure which showed the fixing member of 1st embodiment. It is the figure which showed the fixing member of 1st embodiment. It is the figure which showed the structure of the rotary electric machine of 1st embodiment. It is sectional drawing which shows the structure of each phase coil | winding which comprises the stator winding | coil of the rotary electric machine of 1st embodiment. It is the figure which showed the connection of the stator winding | coil of the rotary electric machine of 1st embodiment. It is the figure which showed the winding integration body of the rotary electric machine of 1st embodiment. It is the figure which showed the wound body which wound the winding integration body of the rotary electric machine of 1st embodiment. It is the figure which showed the edge part by which the fixing member of 1st embodiment was welded. It is the figure which showed the fixing member of 2nd embodiment. It is sectional drawing which showed the structure of the fixing member of 2nd embodiment. It is the figure which showed the fixing member of 3rd embodiment. It is the figure which showed the fixed edge part of the fixing member of 1st embodiment. It is the figure which showed the fixed edge part of the fixing member of 1st embodiment. It is the figure which showed the conventional fixing member (insulating spacer).

  Hereinafter, the present invention will be specifically described with reference to embodiments.

(First embodiment)
(Fixing member)
The fixing member of this embodiment is used in a rotating electrical machine 1 including a stator 3 including a stator winding 4 and a stator core 30 and a rotor 2.
The fixing member 5 of this embodiment is shown in FIG. As shown in FIG. 1, the fixing member 5 is a substantially comb-like band-shaped member having a substantially band-shaped main body 51 and a tooth portion 52 protruding from one side end of the main body 51. The material of the fixing member 5 of this embodiment is not limited, and can be formed of a conventionally known material having electrical insulation. In this embodiment, a phenol resin that is a thermosetting resin is used. Moreover, it is good also as a structure provided with the resin layer provided with the electrical insulation on the surface of metal core materials.

  The main body 51 has a substantially band shape, and a tooth portion 52 protrudes from one side end. In addition, a notch 53 having a substantially strip-like width is provided between two adjacent tooth portions 52 and 52 on one side end side of the main body 51. This notch 53 is formed in a substantially V shape in which the width of the cut becomes shorter from one side end to the other side. The substantially V-shape of the notch 53 is formed so that the width of the opening is the shortest at the center of the two tooth portions 52 and 52. The main body 51 has a notch 53 so that both sides of the notch 53 can swing with respect to the notch 53 as a fulcrum.

  The main body 51 is formed to have a length that extends over at least four divided cores when the stator core 30 is formed by arranging a predetermined number of divided cores in the circumferential direction. In the present embodiment, when the stator 3 is formed, the stator 3 is formed with a length over the entire circumference.

  The tooth part 52 has a tapered shape protruding from one side end of the main body part 51. In the present embodiment, the shape of the tooth portion 52 has a tapered substantially trapezoidal shape, but is not limited to this, and depends on the shape between the stator winding 4 and the stator core 30. Can be determined. Furthermore, the end of the tooth portion 52 in the width direction (the direction in which the main body portion 51 extends) of the tooth portion 52 may be tapered so that the thickness gradually changes.

  The fixing member 5 of the present embodiment is assembled by inserting the tooth portion 52 between the stator winding 4 and the stator core 30 with the tooth portion 52 facing inward in the radial direction. At this time, a notch 53 is formed between the two tooth portions 52, 52, and when the tooth portion 52 is inserted radially inward, as shown in FIG. The main body 51 is curved by reducing the width of the opening. That is, at the time of assembling, the portions on both sides of the notch 53 (portions where the tooth portion 52 is fixed) shift inward in the radial direction.

(Rotating electric machine)
The rotating electrical machine 1 and the stator 3 to which the fixing member 5 of this embodiment is assembled will be described.
The configuration of the rotating electrical machine of this embodiment is shown in FIG. The rotating electrical machine 1 according to the present embodiment includes a housing 10 in which a pair of substantially bottomed cylindrical housing members 100 and 101 are joined to each other through an opening, and is rotatably supported by the housing 10 via bearings 110 and 111. And a stator 3 fixed to the housing 10 at a position surrounding the rotor 2 inside the housing 10.

The rotor 2 is formed with a plurality of magnetic poles that are alternately different in the circumferential direction by permanent magnets on the outer peripheral side facing the inner peripheral side of the stator 3. The number of magnetic poles of the rotor 2 is not limited because it varies depending on the rotating electric machine. In this embodiment, an 8-pole rotor (N pole: 4, S pole: 4) is used.
The stator 3 includes a stator core 30, a three-phase stator winding 4 formed from a plurality of phase windings, and an insulating paper disposed between the stator core 30 and the stator winding 4. (Not shown).

  The stator core 30 has an annular shape in which a plurality of slots are formed on the inner periphery. The plurality of slots are formed such that the depth direction thereof coincides with the radial direction. The number of slots formed in the stator core 30 is two per one phase of the stator winding 4 with respect to the number of magnetic poles of the rotor 2. That is, 8 × 3 × 2 = 48 slots are formed.

  The stator core 30 is formed by arranging a predetermined number of divided cores in the circumferential direction. In the present embodiment, there are 24. The split core partitions one slot and also forms one slot between the circumferentially adjacent split cores (a teeth portion extending radially inward and a back core portion on which the teeth portion is formed) ).

  The stator core 30 (a divided core constituting the stator core 30) is formed by laminating 410 electromagnetic steel sheets having a thickness of 0.3 mm. An insulating thin film is disposed between the laminated electromagnetic steel sheets. The stator core 30 may be formed not only from the laminated body of electromagnetic steel sheets but also using conventionally known metal thin plates and insulating thin films.

  The stator winding 4 is formed by winding a plurality of windings 40 by a predetermined winding method. As shown in FIG. 4 (A), the winding 40 constituting the stator winding 4 includes a copper conductor 41 and an insulating film comprising an inner layer 420 and an outer layer 421 covering the outer periphery of the conductor 41 and insulating the conductor 41. 42. The thickness of the insulating film 42 including the inner layer 420 and the outer layer 421 is set between 100 μm and 200 μm. As described above, since the insulating film 42 made of the inner layer 420 and the outer layer 421 is thick, it is not necessary to insulate the windings 40 with insulating paper or the like between them. Insulating paper may be disposed between the stator cores 30 to insulate the wires from each other.

  The outer layer 421 is formed of an insulating material such as nylon, and the inner layer 420 is formed of an insulating material such as a thermoplastic resin or a polyamideimide having a glass transition temperature higher than that of the outer layer. As a result, the outer layer 421 is softened faster than the inner layer 420 by the heat generated in the rotating electrical machine, so that the windings 40 installed in the same slot are thermally bonded to each other by the outer layer 421. As a result, the plurality of windings 40 installed in the same slot are integrated to make the windings 40 rigid, so that the mechanical strength of the wire winding 40 in the slot is improved. In addition, even if excessive vibration occurs, the bonding portion between the inner layer 420 and the outer layer 421 is peeled off before the bonding portion between the inner layer 420 and the conductor 41. Therefore, the adhesion between the inner layer 420 and the conductor 41 is maintained and insulation is maintained. It can be secured.

  Further, as shown in FIG. 4B, the winding 40 of the stator winding 4 is formed by covering the outer periphery of the insulating film 42 made of the inner layer 420 and the outer layer 421 with a fusion material 43 made of epoxy resin or the like. Also good. As a result, the fusion material 43 is melted faster than the insulating film 42 by the heat generated in the rotating electrical machine, so that the plurality of windings 40 installed in the same slot are thermally bonded by the fusion material 43. As a result, the plurality of windings 40 installed in the same slot are integrated to make the windings 40 rigid, thereby improving the mechanical strength of the winding 40 in the slot.

A coating made of polyphenylene sulfide (PPS) may be used for the insulating coating 42 of the winding 40 constituting the stator winding 4.
As shown in FIG. 5, the stator winding 4 is formed by two three-phase windings (U1, U2, V1, V2, W1, W2).

  The stator winding 4 is a cylinder formed by winding a winding assembly 46 (FIG. 6) formed in a strip shape by stacking twelve windings 40 formed in a predetermined waveform shape in a predetermined state. (FIG. 7). In the present embodiment, the winding integrated body 46 is wound six times.

  The stator winding 4 includes a linear slot accommodating portion 44 that is accommodated in a slot formed in the stator core 30 and a turn portion 45 that connects the adjacent slot accommodating portions 44 to each other. The slot accommodating portion 44 is accommodated in a slot for each predetermined number of slots (in this embodiment, 3 phases × 2 = 6). The turn portion 45 is formed so as to protrude from the end surface of the stator core 30 in the axial direction.

The stator winding 4 is formed by winding a plurality of windings 40 in a wavy shape along the circumferential direction with one end protruding from the axial end surface of the stator core 30. . The winding 40 of the stator winding 4 is wound from the radially outer side toward the radially inner side. The end of the winding 40 protrudes from the end surface of the stator winding 4 on the innermost peripheral surface side.
Here, the winding method of the winding 40 of the stator winding 4 is not particularly limited, and one phase of the stator winding 4 is wavy along the circumferential direction and has different winding directions. It is good also as a structure connected by the folding | turning part which the winding direction reverses two wound coil | windings.

(Production method)
The manufacturing method of this embodiment will be described.
First, twelve windings 40 formed in a predetermined waveform shape are stacked in a predetermined state to form a strip shape as shown in FIG. Then, the winding integrated body 46 formed in a strip shape by being stacked in a predetermined state is wound into a spiral shape and formed into the cylindrical shape shown in FIG. Thereby, the stator winding | coil 4 was formed.

  Subsequently, the plurality of split cores are assembled to the stator winding 4 to form the stator core 30 in a state where the slot accommodating portion of the stator winding 4 is accommodated in the slot. The stator core 30 is formed by separating the split core from the radially outer side to the inner side of the stator winding 4 so that the tooth portion is inserted into the space between the slot accommodating portions of the stator winding 4. It is done by changing.

  Thereafter, the fixing member 5 is assembled between the stator winding 4 and the stator core 30. In the present embodiment, the fixing member 5 is assembled to either of the two end surfaces of the stator core 30. When the fixing member 5 is assembled to both end surface sides of the stator core 30, it is preferable to assemble from the bottom surface side.

  The fixing member 5 is assembled by inserting a tooth portion 52 between the stator winding 4 and the stator core 30 from the radially outer side of the stator winding 4 to the inner side. The fixing member 5 is assembled by inserting all the tooth portions 52 by sequentially inserting the tooth members 52 on one end side in the longitudinal direction of the belt-like shape in the circumferential direction. . In the fixing member 5 of the present embodiment, since the main body 51 has the notch 53, the main body 51 can be bent along the circumferential direction, and can be easily inserted.

When all the tooth portions 52 are inserted, both end portions of the main body portion 51 are fixed by laser welding (FIG. 8). As a result, the fixing member 5 is interposed between the stator core 30 and the stator winding 4 so as to regulate the transition between them.
Then, the rotary electric machine 1 is manufactured using a conventionally well-known method. In addition, said manufacturing method is an example, The well-known process which is not described may be given between each said process.

The fixing member 5 of the present embodiment is interposed between the turn portion 45 and the end face of the stator core 30 to restrict the transition of the stator winding 4 and the stator core 30. The fixing member 5 of the present embodiment is configured such that the tooth portion 52 of the fixing member 5 is interposed at a plurality of locations in the circumferential direction of the stator winding 4. Each of the plurality of tooth parts 52 is formed integrally with the main body part 51 extending in the circumferential direction, and the end part is welded so that the main body part 51 forms an annular shape. In the member 5, the tooth portion 52 is prevented from falling off between the stator winding 4 and the stator core 30.
Furthermore, the fixing member 5 of the present embodiment has a configuration in which the tooth portions 52 of the fixing member 5 are interposed over a plurality of locations in the circumferential direction of the stator winding 4, and the number necessary for forming the stator and Demonstrates the effect of reducing assembly costs.

And even if a vibration, a heat | fever, mechanical stress, etc. are provided to the stator 3 and the rotary electric machine 1 using the fixing member 5 of this embodiment, the fixing member 5 does not drop out. As a result, a decrease in performance of the rotating electrical machine 1 can be suppressed. Furthermore, the number of parts and the cost required for assembly can be reduced.
In addition, the fixing member 5 of the present embodiment can reduce the number of fixing members 5 required on one end face side of the stator core 30 because the main body 51 extends over the entire circumference. As a result, the number and assembly cost required when forming the stator 3 can be reduced.

(Second embodiment)
In the present embodiment, the length of the main body 51 of the fixing member 5 is the same as that of the first embodiment except that the stator core 30 is formed of a plurality of divided cores and is formed to have a length extending over four divided cores. It is a fixing member similar to one embodiment. In the present embodiment, the end portions of the main body portions 51 of the adjacent fixing members 5 are joined by welding.
Also in this embodiment, the same effect as the first embodiment can be exhibited.

(Third embodiment)
In the present embodiment, as shown in FIGS. 9 to 10, the portion between the adjacent protruding tooth portions 52 and 52 of the main body 51 is thinner than the protruding portion of the tooth portions 52 and 52. The fixing member is the same as that of the first embodiment except that the thinned portion 54 is formed. Here, FIG. 9 is a fixing member of the present embodiment, and FIG. 10 is a cross-sectional view taken along the line II in FIG. Since the main body 51 has the thin portion 54, both sides thereof can swing with respect to the thin portion 54 as a fulcrum.
In the present embodiment, since the thin portion 54 functions in the same manner as the notch 53 of the first embodiment, the same effect as that of the first embodiment can be exhibited.

(Fourth embodiment)
In the present embodiment, as shown in FIG. 11, the portion between the portions where the two adjacent tooth portions 52, 52 of the main body portion 51 protrude is connected by a connecting portion 55. The fixing member is the same as that of the first embodiment. The connecting portion 55 is formed by joining components made of a softer material than the portion of the main body portion 51 from which the tooth portion 52 protrudes. As the connecting portion 55 is deformed, both sides of the connecting portion 55 can swing with respect to the connecting portion 55 as a fulcrum.
In the present embodiment, since the connecting portion 55 functions in the same manner as the cutout 53 of the first embodiment, the same effect as that of the first embodiment can be exhibited.

(Fifth embodiment)
The present embodiment is a fixing member similar to the first embodiment except that the tooth portion 52 is joined to the main body portion 51.
This embodiment differs only in the manufacturing method, and can exhibit the same effect as the first embodiment. Furthermore, the tooth part 52 and the main body part 51 can be formed of different materials. The material and shape of each of the plurality of tooth portions 52 can be different.

(Deformation)
In each of the above embodiments, the end portions adjacent to each other in the circumferential direction of the fixing member 5 are joined by laser welding, but the present invention is not limited to this.
A fastening portion 560 protruding to the other side is formed on one of the two end portions to be joined, and a locking portion 561 on which the fastening portion 560 is locked is formed on the other of the two end portions, and the fastening portion 560 is formed. It is good also as a form which latches to the latching | locking part 561 (FIG. 12).

It is good also as a form which forms the latching | locking part 571 in each of the two edge parts joined, and latches the fastening member 570 to the two latching | locking parts 571 (FIG. 13).
Furthermore, in the form shown in FIGS. 11-12, you may weld the fastening part 560 and the latching | locking part 561, and the fastening member 570 and the latching | locking part 571, respectively.

1: rotating electric machine 10: housing 110, 111: bearing 2: rotor 20: rotating shaft 3: stator 30: stator core 4: stator winding 40: winding 41: conductor 42: insulating film 43: fusion Material 44: Slot accommodating portion 45: Turn portion 46: Winding assembly 5: Fixing member 51: Main body portion 52: Tooth portion 53: Notch 54: Thin portion 55: Connection portion 560: Fastening portion 561: Locking portion 570 : Fastening member 571: Locking portion

Claims (11)

A stator core having a plurality of slots in the circumferential direction facing the rotor on which the magnetic poles alternately differing in the circumferential direction are opposed to the inner circumferential side or the outer circumferential side, the depth direction matching the radial direction;
A fixed structure formed by winding a plurality of conducting wires each having a slot accommodating portion accommodated in the circumferentially different slot and a turn portion connecting the slot accommodating portions outside the slot around the stator core. Child windings,
A stator of a rotating electric machine having a stator, and interposed between at least one end face of the stator core and the turn portion of the stator winding to regulate the transition of the stator winding and the stator core A stator winding fixing member,
The stator core is composed of a plurality of divided cores arranged in the circumferential direction,
The fixing member is interposed on both sides of a contact portion between two divided cores arranged in the circumferential direction, and includes at least a tooth portion that regulates the transition of the stator winding and the stator core, and is arranged in the circumferential direction. A stator winding fixing member, comprising: a main body portion extending along a circumferential direction over four divided cores and having a radial end portion of the tooth portion fixed thereto.   The stator member for a stator winding according to claim 1, wherein the main body portion extends over the entire circumference.   The fixing member of the stator winding according to claim 1, wherein the fixing member is formed such that a portion of the main body portion to which the tooth portion is fixed can be changed in a radial direction.   The fixing member for a stator winding according to claim 3, wherein the fixing member has a notch in at least one of a radial direction of a portion sandwiched between portions where the tooth portions of the main body portion are fixed.   The stator winding according to claim 3, wherein a portion of the fixing member sandwiched between portions of the main body portion where the tooth portion is fixed is thinner than a portion where the tooth portion is fixed. Fixed member.   4. The fixing member according to claim 3, wherein a portion sandwiched between portions of the main body portion where the tooth portion is fixed is formed of a softer material than a material forming the portion where the tooth portion is fixed. Stator winding fixing member.   The stator member fixing member according to any one of claims 1 to 6, wherein end portions adjacent to each other in the circumferential direction are fixed to each other.   The stator winding fixing member according to claim 1, wherein the tooth portion and the main body portion are integrally formed with the fixing member.   The said fixing member is a fixing member of the stator winding | coil in any one of Claims 1-7 with which the said tooth | gear part and the said main-body part are joined.   The fixing member for a stator winding according to any one of claims 1 to 9, wherein the fixing member is fixed to at least one of the stator core or the stator winding.   A rotating electrical machine comprising the stator winding fixing member according to any one of claims 1 to 10.

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