Abstract: A rotating electric machine stator (1) has a plurality of magnetic pole pieces (2) and yoke pieces (3) which are alternately arranged so that it is possible to ensure a space for an automatic winding machine (21) to enter between the tooth portions (5) of the respective magnetic pole pieces (2) facilitating performing high-speed winding and regular winding. Further since the winding end wires of coils (10) wound around the tooth portions (5) of predetermined magnetic pole pieces (2a 2c) are led out as jumper wires (20) between the predetermined magnetic pole pieces (2a 2c) and the tooth portions (5) of another magnetic pole pieces (2b 2d) from the inner diameter side of a back yoke portion (4B) to the outer diameter side thereof at an axial direction end of yoke pieces (3a 3c) adjacent to the predetermined magnetic pole pieces (2a 2c) a space for disposing the jumper wires (20) can be ensured so that the jumper wires can be formed at high speed in a reliable way.
[Claim 1]
A rotating electrical machine stator comprising:
a multiple of a pole piece having a first back yoke portion and a toothed portion protruding from the first back yoke portion; and
a multiple of a yoke piece having a second back yoke portion coupled to the first back yoke portion, wherein
the multiple of pole pieces and the multiple of yoke pieces are alternately disposed in a circular form so that the toothed portion is on an inner diameter side, a crossover line ,: is formed between a coil wound around the toothed portion of a predetermined pole piece of the multiple of pole pieces and a coil wound around the toothed portion of a pole piece other than the predetermined pole piece, and the crossover line is disposed in an end portion in an axial direction of the rotating electrical machine of a yoke piece neighboring the predetermined pole piece, and engaged with the neighboring yoke piece. [Claim 2]
The rotating electrical machine stator according to claim 1, wherein the crossover line is drawn out in the axial direction end portion of the yoke piece neighboring the predetermined pole piece from an inner diameter side to an outer diameter side of the yoke piece.
[Claim 3]
The rotating electrical machine stator according to claim 1 or claim 2, wherein the crossover line is a winding end line of the coil wound around the toothed portion of the predetermined pole piece and a winding start line of the coil wound around the toothed portion of the other pole piece. [Claim 4]
The rotating electrical machine stator according to any one of claim 1 to claim 3, wherein the coil wound around the toothed portion of the predetermined pole piece, the coil wound around the toothed portion of the other pole piece, the crossover line, at least one portion of the multiple of pole pieces, and at least one portion of the multiple of yoke pieces if are covered with a resin. [Claim 5]
The rotating electrical machine stator according Lo any one of claim 1 to claim 4, comprising an insulator formed of an insulating material provided on each of the multiple of yoke pieces, wherein the insulator has a crossover line engagement portion with which the crossover line is engaged. [Claim 6]
The rotating electrical machine stator according to claim 5, wherein the second back yoke portion has an insulator insertion portion in which the insulator is mounted. [Claim 7]
The rotating electrical machine stator according to any-one of claim 1 to claim 4, comprising an insulator formed of an insulating material provided on each of the multiple of pole pieces, wherein the insulator is disposed so as to cover one portion of the pole piece and one portion of the yoke piece neighboring the pole piece. [Claim 8]
The rotating electrical machine stator according to claim 7, wherein the insulator has an end portion parallel to the axial direction, the end portions of two neighboring insulators have a stepped portion in the axial direction on an inner diameter side of the yoke piece of which one portion is covered by the two insulators, and are opposed, and the crossover line is disposed along the stepped portion. [Claim 9]
The rotating electrical machine stator according to claim 8, wherein the end portions of the two neighboring insulators are opposed across a gap smaller than a radial dimension of windings of the coil wound around the toothed portion of the predetermined pole piece and the coil wound around the toothed portion of the other pole piece. [Claim 10]
The rotating electrical machine stator according to any one of claim 1 to claim 9, wherein an angle formed with respect to an axis of rotation of the rotating electrical machine by
end faces on either longitudinal direction side of the first back yoke portion is greater than an angle formed with respect to the axis of rotation by end faces on either longitudinal direction side of the second back yoke portion. [Claim 11]
The rotating electrical machine stator according to any one of claim 1 to claim 10, wherein one coupling portion of a multiple of coupling portions of the first back yoke portion and the second back yoke portion is such that a protruding portion or a depressed portion provided in a longitudinal direction end portion of the first back yoke portion and a depressed portion or a protruding portion provided in a longitudinal direction end portion of the second back yoke portion are joined in a fitted state, and another coupling portion has a thin portion bent at a predetermined angle. [Claim 12]
The rotating electrical machine stator according to any one of claim 1 to claim 10, wherein the multiple of pole pieces and the multiple of yoke pieces are formed of a multiple of thin plates stacked in the axial direction, and coupling portions of the first back yoke portion and the second back yoke portion are such that a protruding portion or a depressed portion provided in the thin plate in a longitudinal direction end portion of the first back yoke portion and a depressed portion or a protruding portion provided in the thin plate in
a longitudinal direction end portion of the second back yoke portion are joined in a state fitted in the axial direction. [Claim 13]
The rotating electrical machine stator according to any one of claim 1 to claim 12, wherein the coil wound around the toothed portion of the predetermined pole piece and the coil wound around the toothed portion of the other pole piece are disposed not only in a space on an inner diameter side of the first back yoke portion, but also in a space on an inner diameter side of the second back yoke portion coupled to the first back yoke portion. [Claim 14]
A rotating electrical machine stator manufacturing method, which is a manufacturing method of a rotating electrical machine stator wherein a multiple of a pole piece and a multiple of a yoke piece are alternately disposed in a circular form, the manufacturing method comprising:
a winding step of preparing a stator core wherein a multiple of a pole piece having a first back yoke portion and a toothed portion protruding from the first back yoke portion and a multiple of a yoke piece having a second back yoke portion coupled to the first back yoke portion are alternately disposed, attaching the stator core to an automatic winding machine, winding a coil around the toothed portion of a predetermined pole piece of the multiple of pole pieces, and subsequently
drawing out a winding end line of the coil from an inner diameter side to an outer diameter side of the second back yoke portion in an end portion in an axial direction of the rotating electrical machine of a yoke piece neighboring the predetermined pole piece; and
a core closing step of bending the stator core into a circular form so that the toothed portion is on an inner diameter side, and joining the two end portions by a butting the two end portions together, after the winding step. [Claim 15]
The rotating cs I ov.t r i r.,-i I machine stator manufacturing method according to claim 14, wherein a punching step of punching out a steel plate piece, disposed so that a longitudinal direction of the first back yoke portion of the multiple of pole pieces and a longitudinal direction of the second back yoke portion of the multiple of yoke pieces coincide with a rolling direction of a strip-form electromagnetic steel plate, from the electromagnetic steel plate, and fabricating a linear stator core by stacking and fixing a predetermined number of the steel plate piece in the axial direction, is carried out before the winding step. [Claim 16]
The rotating electrical machine stator manufacturing method according to claim 15, wherein the linear stator core fabricated in the punching step is attached to the automatic
winding machine in the winding step. [Claim 17]
The rotating electrical machine stator manufacturing method according to any one of claim 14 to claim 16, wherein the winding end line of the coil wound around the toothed portion of the predetermined pole piece in the winding step is disposed in and engaged with an end portion in the axial direction of the yoke piece neighboring the predetermined pole piece as a crossover line, and the crossover line is adopted as a winding start line of a coil wound around the toothed portion of a pole piece other than the predetermined pole piece .
| # | Name | Date |
|---|---|---|
| 1 | 201947013074-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [04-02-2019(online)].pdf | 2019-02-04 |
| 2 | 201947013074-STATEMENT OF UNDERTAKING (FORM 3) [04-02-2019(online)].pdf | 2019-02-04 |
| 3 | 201947013074-REQUEST FOR EXAMINATION (FORM-18) [04-02-2019(online)].pdf | 2019-02-04 |
| 4 | 201947013074-PROOF OF RIGHT [04-02-2019(online)].pdf | 2019-02-04 |
| 5 | 201947013074-PRIORITY DOCUMENTS [04-02-2019(online)].pdf | 2019-02-04 |
| 6 | 201947013074-POWER OF AUTHORITY [04-02-2019(online)].pdf | 2019-02-04 |
| 7 | 201947013074-FORM 18 [04-02-2019(online)].pdf | 2019-02-04 |
| 8 | 201947013074-FORM 1 [04-02-2019(online)].pdf | 2019-02-04 |
| 9 | 201947013074-DRAWINGS [04-02-2019(online)].pdf | 2019-02-04 |
| 10 | 201947013074-DECLARATION OF INVENTORSHIP (FORM 5) [04-02-2019(online)].pdf | 2019-02-04 |
| 11 | 201947013074-COMPLETE SPECIFICATION [04-02-2019(online)].pdf | 2019-02-04 |
| 12 | 201947013074-CLAIMS UNDER RULE 1 (PROVISIO) OF RULE 20 [04-02-2019(online)].pdf | 2019-02-04 |
| 13 | 201947013074.pdf | 2019-04-02 |
| 14 | Correspondence by Agent_Form1_10-04-2019.pdf | 2019-04-10 |
| 15 | 201947013074-RELEVANT DOCUMENTS [11-04-2019(online)].pdf | 2019-04-11 |
| 16 | 201947013074-MARKED COPIES OF AMENDEMENTS [11-04-2019(online)].pdf | 2019-04-11 |
| 17 | 201947013074-FORM 13 [11-04-2019(online)].pdf | 2019-04-11 |
| 18 | 201947013074-Annexure [11-04-2019(online)].pdf | 2019-04-11 |
| 19 | 201947013074-AMMENDED DOCUMENTS [11-04-2019(online)].pdf | 2019-04-11 |
| 20 | abstract 201947013074.jpg | 2019-04-23 |
| 21 | 201947013074-FORM 3 [09-08-2019(online)].pdf | 2019-08-09 |
| 22 | 201947013074-FORM 3 [23-01-2020(online)].pdf | 2020-01-23 |
| 23 | 201947013074-FER.pdf | 2020-06-19 |
| 24 | 201947013074-certified copy of translation [17-09-2020(online)].pdf | 2020-09-17 |
| 25 | 201947013074-OTHERS [15-12-2020(online)].pdf | 2020-12-15 |
| 26 | 201947013074-Information under section 8(2) [15-12-2020(online)].pdf | 2020-12-15 |
| 27 | 201947013074-FORM-26 [15-12-2020(online)].pdf | 2020-12-15 |
| 28 | 201947013074-FORM 3 [15-12-2020(online)].pdf | 2020-12-15 |
| 29 | 201947013074-FER_SER_REPLY [15-12-2020(online)].pdf | 2020-12-15 |
| 30 | 201947013074-DRAWING [15-12-2020(online)].pdf | 2020-12-15 |
| 31 | 201947013074-ABSTRACT [15-12-2020(online)].pdf | 2020-12-15 |
| 32 | 201947013074-FORM 3 [23-08-2021(online)].pdf | 2021-08-23 |
| 33 | 201947013074-PatentCertificate21-12-2021.pdf | 2021-12-21 |
| 34 | 201947013074-IntimationOfGrant21-12-2021.pdf | 2021-12-21 |
| 35 | 201947013074-RELEVANT DOCUMENTS [20-09-2023(online)].pdf | 2023-09-20 |
| 1 | SearchstrategyE_15-06-2020.pdf |