WO2015083470A1 - 回転電機 - Google Patents
回転電機 Download PDFInfo
- Publication number
- WO2015083470A1 WO2015083470A1 PCT/JP2014/079011 JP2014079011W WO2015083470A1 WO 2015083470 A1 WO2015083470 A1 WO 2015083470A1 JP 2014079011 W JP2014079011 W JP 2014079011W WO 2015083470 A1 WO2015083470 A1 WO 2015083470A1
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- WO
- WIPO (PCT)
- Prior art keywords
- rotating electrical
- electrical machine
- coil
- slot
- insulating
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/12—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors arranged in slots
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/26—Rotor cores with slots for windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/38—Windings characterised by the shape, form or construction of the insulation around winding heads, equalising connectors, or connections thereto
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/0056—Manufacturing winding connections
- H02K15/0068—Connecting winding sections; Forming leads; Connecting leads to terminals
- H02K15/0081—Connecting winding sections; Forming leads; Connecting leads to terminals for form-wound windings
- H02K15/0087—Connecting winding sections; Forming leads; Connecting leads to terminals for form-wound windings characterised by the method or apparatus for simultaneously twisting a plurality of hairpins open ends after insertion into the machine
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/06—Embedding prefabricated windings in machines
- H02K15/062—Windings in slots; salient pole windings
- H02K15/065—Windings consisting of complete sections, e.g. coils, waves
- H02K15/067—Windings consisting of complete sections, e.g. coils, waves inserted in parallel to the axis of the slots or inter-polar channels
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/12—Impregnating, heating or drying of windings, stators, rotors or machines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/12—Machines characterised by the modularity of some components
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
- H02K3/345—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation between conductor and core, e.g. slot insulation
Definitions
- the present invention relates to a rotating electrical machine.
- a rotating magnetic field is generated by supplying AC power to a stator winding, and the rotor is rotated by this rotating magnetic field.
- AC energy can be output from the coil by converting mechanical energy applied to the rotor into electrical energy.
- the rotating electrical machine operates as an electric motor or a generator.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2004-228561 discloses a method of installing a coil guide on the end face of the stator core and ensuring electrical insulation between the stator core and the electric conductor when the electric conductor is twisted.
- an object of the present invention is to provide a rotating electrical machine that achieves both productivity and insulation.
- the present application includes a plurality of means for solving the above-described problems.
- the core is A coil guide disposed in at least one opening of the slot, the coil guide being located between the slot and the segment conductor; and at least one partition located between the segment conductors.
- the slot insertion part and the partition part are arranged together with the segment conductors in the slot.
- FIG. The schematic diagram which shows the whole structure of the stator of a rotary electric machine.
- FIG. The perspective view and sectional drawing of the coil guide 3.
- FIG. The perspective view which combined the coil guide 3 with the stator core 1.
- FIG. The side view of FIG.
- FIG. 9A shows a state in which a load is applied to the coil guide 3 when the twisted portion 13 is twisted after inserting the insulating coating coil 6 and the insulating coating connecting wires 10, 11, 12 into the slot 2 of the stator core 1.
- FIG.9 (b) is an enlarged view of the cross section of Fig.9 (a).
- FIG. 10A is a cross-sectional view of the state in which the insulating coating coil 6 and the insulating coating connecting wires 10, 11, 12 are inserted into the slot 2 of the stator core 1, and FIG. 10B shows the twisted portion 13. Sectional drawing of the state after twisting.
- FIG. 1 The perspective view of the state which connected the edge part of the twist part 13.
- FIG. 1 The perspective view which shows a mode that the filler 31 made from an insulating material is apply
- the rotating electrical machine according to the present embodiment is a rotating electrical machine that is suitable for use in driving a car.
- a so-called electric vehicle using a rotating electric machine includes a hybrid type electric vehicle (HEV) having both an engine and a rotating electric machine, and a pure electric vehicle (EV) that runs only by the rotating electric machine without using an engine.
- HEV hybrid type electric vehicle
- EV pure electric vehicle
- axial direction refers to a direction along the rotation axis of the rotating electrical machine.
- the circumferential direction refers to the direction along the rotational direction of the rotating electrical machine.
- the “radial direction” refers to a radial direction (radial direction) when the rotational axis of the rotating electrical machine is the center.
- Inner circumference side refers to the radially inner side (inner diameter side)
- outer circumference side refers to the opposite direction, that is, the radially outer side (outer diameter side).
- FIG. 14 is a cross-sectional view showing the overall configuration of the rotating electrical machine 200 according to the embodiment of the present invention.
- This rotating electric machine 200 is a three-phase synchronous motor with a built-in permanent magnet.
- the rotating electrical machine 200 operates as an electric motor that rotates the rotor 210 when a three-phase alternating current is supplied to the connecting wires 10, 11, and 12 with insulating coating shown in FIG. 1. Further, when the rotating electrical machine 200 is driven by an engine, it operates as a generator and outputs three-phase AC generated power. That is, the rotating electrical machine 200 has both a function as an electric motor that generates rotational torque based on electric energy and a function as a generator that generates electric power based on mechanical energy. Functions can be used selectively.
- FIG. 1 is a perspective view showing an overall configuration of a stator 100 of a rotating electrical machine according to an embodiment of the present invention.
- a stator 100 of the rotating electrical machine in FIG. 1 mainly includes a stator core 1, a coil 6 with an insulating coating, connection wires 10, 11, 12 with an insulating coating and a coil guide 3.
- the coil 6 with an insulating film is a segment conductor formed in a U shape, for example.
- FIG. 2 is a perspective view of the stator core 1.
- the stator core 1 is formed by laminating a plurality of electromagnetic steel sheets of about 0.05 to 1.0 mm.
- the electromagnetic steel sheet is formed by punching or etching.
- the laminated electrical steel sheets are fixed by welding, and the stator core 1 is formed.
- FIG. 3 is a perspective view of the stator core 1 and a perspective view of the coil guide 3a and the coil guide 3b.
- FIG. 3 is a perspective view of a state before the coil guide 3a and the coil guide 3b are assembled to the stator core 1.
- the coil guides 3a and 3b are made of an insulating material such as a resin material or a nonconductive metal. Further, the coil guides 3a and 3b are provided with a flange portion 43 at one end in the axial direction. In the present embodiment, the coil guide 3 a and the coil guide 3 b are assembled in all the slots 2 of the stator core 1.
- the coil guide 3a and the coil guide 3b may have a circumferential size that is integrated (circular) in the circumferential direction or divided into the same number as the slot 2.
- FIG. 4 shows a perspective view of the coil guide 3 and a cross-sectional view thereof.
- the coil guide 3 has an opening 5, an iron core insertion portion 41 provided at one axial end, and a flange 43 provided at the other axial end.
- a coil 6 with an insulating coating and connecting wires 10, 11, 12 with an insulating coating are inserted into the opening 5.
- the slot insertion portion 41 is a portion that is inserted into the slot 2 of the stator core 1 when the coil guide 3 is assembled to the stator core 1.
- the collar portion 43 is a portion that covers the side surface portion (axial end portion) of the stator core positioned around the slot.
- the number and shape of the openings 5 of the coil guide 3 can be variously changed.
- the opening 5 can be configured to have one opening per slot.
- the shape of the opening 5 can be the same as that of the slot 2.
- the opening 5 may be divided in the radial direction by a partition 42.
- a plurality of openings 5 are provided as many as the number of the insulating-coated coils 6 and the insulating-coated connecting wires 10, 11, and 12 are inserted.
- FIGS. 4 (c) and 4 (d) a plurality of openings 5 are provided as many as the number of the insulating-coated coils 6 and the insulating-coated connecting wires 10, 11, and 12 are inserted.
- a plurality of coils 6 with insulating coating and connecting wires 10, 11, 12 with insulating coating are inserted into one opening 5 (FIG. 4).
- the number of openings 5 may be two per slot).
- the opening 5 is provided with coil escapes 15a and 15b, which will be described later.
- the coil reliefs 15a and 15b are provided in a direction in which at least the twisted portion 13 is twisted when twisting the twisted portions 13 of the coil 6 with insulating coating and the connecting wires 10, 11, 12 with insulating coating, which will be described later.
- it is provided on both sides in the circumferential direction, and in the example of FIGS. 4 (c), 4 (d), 4 (e), and 4 (f), one circumferential direction is provided. It is provided on the side (the side on which the twisted portion 13 is twisted).
- FIG.4 (c) the structure which provides the twist part 13 as shown to Fig.4 (a) and FIG.4 (b) in the circumferential direction both sides is FIG.4 (c), FIG.4 (d), FIG.4 (e), FIG. It is possible even when a partition 42 as shown in f) is provided.
- the structure which provides the twist part 13 as shown in FIG.4 (c), FIG.4 (d), FIG.4 (e), and FIG.4 (f) in the circumferential direction one side is coil escape which faces the circumferential direction one side. It can also be said that 15a and 15b and coil relief 15a and 15b which face the other circumferential direction are provided so as to be alternately positioned in the radial direction. Although not shown, such a configuration is also possible in an example in which the partition portion 42 shown in FIGS. 4A and 4B is not provided.
- FIG. 5 is a perspective view in which the coil guide 3 is assembled to the stator core 1.
- the slot insertion portion 41 of the coil guide 3 is inserted into the slot 2 of the stator core 1. Further, the inserted coil guide 3 presses the inner wall of the slot 2 with a force that does not come out of the slot 2 of the stator core 1 by its own weight.
- the coil guide 3 does not necessarily have to be configured to press the inner wall of the slot 2, and other methods for maintaining the contact between the coil guide 3 and the stator core 1 (for example, application of an adhesive) May be adopted.
- FIG. 6 is a side view in which the coil guide 3 a and the coil guide 3 b are assembled to the stator core 1. As shown in FIG. 6, the coil guide 3 a and the coil guide 3 b are assembled to both end surfaces of the stator core 1.
- FIG. 7 is a perspective view of the stator core 1 with the coil guides 3a, 3b assembled before the coil 6 with insulating coating and the connecting wires 10, 11, 12 with insulating coating are assembled.
- the coil 6 with insulating coating and the connecting wires 10, 11, 12 with insulating coating are inserted into the opening 5 of the coil guide 3a from the axial direction.
- FIG. 8 is a perspective view in which the coil 6 with insulating coating and the connecting wires 10, 11, 12 with insulating coating are inserted into the stator core 1 assembled with the coil guides 3a, 3b.
- the tips of the insulating film-coated coil 6 and the insulating film-connected connecting wires 10, 11, 12 are taken out from the opening 5 of the coil guide 3b.
- a portion protruding from the opening 5 of the coil guide 3b is referred to as a twisted portion 13.
- FIG. 9A shows a case where a load is applied to the coil guide 3 when the twisted portion 13 is twisted after inserting the slot 2 of the stator core 1, the coil 6 with insulating coating, and the connecting wires 10, 11, 12 with insulating coating. It is the perspective view which attached the outer diameter twist guide 52 and the inner diameter twist guide 61 so that it may not exist.
- FIG. 9B is an enlarged view of the cross section of FIG. The outer diameter torsion guide tip 52 and the inner diameter torsion guide 62 are provided so as to sandwich the insulating coating coil 6 and the insulating coating connecting wires 10, 11, 12, and a load is applied to the coil guide 3 when the twisting portion 13 is twisted. I try not to join.
- FIG. 10A is a cross-sectional view in which the slot 2 of the stator core 1, the coil 6 with an insulating coating, and the connection wires 10, 11, and 12 with an insulating coating are inserted, and FIG. 10B shows the twisted portion 13 twisted.
- FIG. A large load is applied to the coil guide 3a when the coil 6 with insulating coating and the connecting wires 10, 11, 12 with insulating coating are inserted into the coil guide 3a, so that the coil guide 3a is not damaged or damaged.
- 15a is provided.
- the coil relief 15a has an R surface or an inclined surface in the circumferential direction so that a load is not applied by the coil 6 with an insulating film and the connecting wires 10, 11, 12 with an insulating film.
- the coil guide 3b is provided with a coil escape 15b.
- FIG. 11 is a perspective view after the twisted portion 13 is joined by welding or the like.
- the connecting portions are arranged at an appropriate interval from each other.
- a connecting method a copper wire base material is melted and connected by arc welding TIG welding or plasma welding.
- FIG. 12 is a perspective view of a state where the insulating material filler 31 shown in FIG. 13 is applied after the twisted portion 13 is joined.
- the structure for applying the insulating material filler 31 is a plate that prevents the insulating material filler 31 from attaching more than necessary to the inner diameter side of the dispenser 20 and the stator core 1 for applying the insulating material filler 31. 21. It consists of a rotary tool (not shown) which fixes and rotates the stator core 1.
- the application position of the insulating material filler 31 is the gap 30 between the slot 2 and the insulating coating coil 6 or the insulating coating connecting wires 10, 11, 12.
- An insulating material filler 31 is applied to the gap 30 from the inner diameter side of the stator core 1 by the dispenser 20.
- the stator core 1 when applying the insulating filler 31, the stator core 1 is rotated, and the insulating filler 31 does not adhere to the inner side of the stator core 1 by the plate 21 (for example, 0.05 mm or less). Be). Further, in order to efficiently apply the insulating filler 31 to the gap 30, the dispenser 20 may be moved and applied. As described above, the coil guide 3 also has a function of preventing the insulating filler 31 from leaking from the slot 2 of the stator core 1 when the edge filler 31 is applied.
- FIG. 13 is a cross-sectional view of the stator core 1 before and after the application of the insulating filler 31.
- FIG. 13A shows a state before applying the insulating filler 31
- FIG. 13B shows a state after applying the insulating filler 31.
- the insulating filler 31 is applied to the gap 30 between the slot 2 and the insulating coating coil 6 or the insulating coating connecting wires 10, 11, 12 as shown in FIG. .
- the gap 30 is filled with the insulating filler 31, and the stator core 1 and the insulating coating coil 6 and the insulating coating connecting wires 10, 11, 12 can be fixed. it can.
- an insulating paper (not shown) made of, for example, heat-resistant polyamide paper and nylon epoxy resin has been incorporated into the gap 30.
- the slot 2 and the coil 6 with an insulating coating and the insulating paper are insulated. Insulating paper can be completely eliminated by insulating the gaps 30 with the connecting wires 10, 11, and 12 with coating by the insulating filler 31.
- stator of the rotating electric machine has been described as an example.
- present invention can be applied to a rotor as long as a segment conductor is inserted into the slot.
- the above description is merely an example, and when interpreting the invention, there is no limitation or restriction on the correspondence between the items described in the embodiment and the items described in the claims.
- the present invention can be similarly applied to a stator of a rotating electric machine such as an induction motor. Further, the present invention can be applied to other than the rotating electric machine for driving the vehicle.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Windings For Motors And Generators (AREA)
Abstract
Description
導モータ等の回転電機の固定子にも同様に適用することができる。また、車両駆動用回転電機以外にも適用できる。
2:スロット
3:コイルガイド
5:開口部
6:絶縁被膜付コイル
10:絶縁被膜付接続線
11:絶縁被膜付接続線
12:絶縁被膜付接続線
13:捻り部
15:コイル逃げ
20:ディスペンサ
21:プレート
30:隙間
31:絶縁材製充填材
41:スロット挿入部
42:仕切り部
51:外径捻りガイド
52:外径捻りガイド先端部
61:内径捻りガイド
62:内径捻りガイド先端部
Claims (10)
- 複数のスロットを備える鉄心と、
前記スロットに配置された複数のセグメント導体とを備える回転電機において、
前記鉄心は前記スロットの少なくとも一方の開口部に配置されたコイルガイドを備え、 前記コイルガイドは、前記スロットと前記セグメント導体との間に位置するスロット挿入部と、前記セグメント導体間に位置する少なくとも一つの仕切り部とを備え、
前記スロット挿入部と前記仕切り部とが前記スロットに前記セグメント導体と共に配置されている回転電機。 - 請求項1に記載の回転電機において、
前記セグメント導体と前記スロットとの間に絶縁材製充填材が充填された回転電機。 - 請求項2に記載の回転電機において、
前記スロットの両端に設けられた2つの前記コイルガイドが、スロット内で対向する端部間に絶縁材製充填材溜まり用の空間を形成することを特徴とする回転電機。 - 請求項1に記載の回転電機において、
前記コイルガイドの開口部の軸方向端部に、R面又は傾斜面を有するコイル逃げが周方向に設けられた回転電機。 - 請求項4に記載の回転電機において、
前記コイル逃げが、径方向に交互に位置するように設けられている回転電機。 - 請求項1に記載の回転電機において、
前記コイルガイドは軸方向一端に鍔部を備え、当該鍔部は前記スロットの周囲に位置する前記鉄心の側面部を覆っている回転電機。 - 請求項1に記載の回転電機において、
前記コイルガイドが、周方向に2つ以上設けられている回転電機。 - 請求項1に記載の回転電機において、
前記コイルガイドが絶縁材で構成された回転電機。 - 請求項1乃至8のいずれか一項に記載の回転電機において、
前記鉄心は固定子である回転電機。 - 請求項1乃至8のいずれか一項に記載の回転電機において、
前記鉄心は回転子である回転電機。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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US15/101,175 US10439461B2 (en) | 2013-12-05 | 2014-10-31 | Rotary electric machine having insulator material filled between conductive bodies |
CN201480066283.8A CN105794090B (zh) | 2013-12-05 | 2014-10-31 | 旋转电机 |
EP14867049.0A EP3079234B1 (en) | 2013-12-05 | 2014-10-31 | Rotary electric machine |
JP2015551429A JP6122148B2 (ja) | 2013-12-05 | 2014-10-31 | 回転電機 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013251601 | 2013-12-05 | ||
JP2013-251601 | 2013-12-05 |
Publications (1)
Publication Number | Publication Date |
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WO2015083470A1 true WO2015083470A1 (ja) | 2015-06-11 |
Family
ID=53273243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2014/079011 WO2015083470A1 (ja) | 2013-12-05 | 2014-10-31 | 回転電機 |
Country Status (5)
Country | Link |
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US (1) | US10439461B2 (ja) |
EP (1) | EP3079234B1 (ja) |
JP (1) | JP6122148B2 (ja) |
CN (1) | CN105794090B (ja) |
WO (1) | WO2015083470A1 (ja) |
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JP2019041472A (ja) * | 2017-08-24 | 2019-03-14 | アイシン精機株式会社 | モーターステーターコア |
WO2019073724A1 (ja) * | 2017-10-11 | 2019-04-18 | 日立オートモティブシステムズ株式会社 | 回転電機の固定子 |
US10333364B2 (en) | 2015-07-06 | 2019-06-25 | Hamilton Sundstrand Corporation | Slot insulation for electrical machines |
JP2020137289A (ja) * | 2019-02-21 | 2020-08-31 | 株式会社日立製作所 | 回転電機 |
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KR102513516B1 (ko) * | 2021-02-05 | 2023-03-23 | 동성이엔지 주식회사 | 전기차량 구동모터용 다층헤어핀 정렬지그 |
FR3121801B1 (fr) | 2021-04-07 | 2023-05-05 | Nidec Psa Emotors | Connecteur pour stator de machine électrique tournante |
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US11271447B2 (en) | 2017-10-11 | 2022-03-08 | Hitachi Astemo, Ltd. | Stator for rotating electric machine having coil support members for stator core |
JP2020137289A (ja) * | 2019-02-21 | 2020-08-31 | 株式会社日立製作所 | 回転電機 |
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Also Published As
Publication number | Publication date |
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CN105794090A (zh) | 2016-07-20 |
EP3079234A1 (en) | 2016-10-12 |
EP3079234A4 (en) | 2017-08-09 |
CN105794090B (zh) | 2019-07-30 |
JPWO2015083470A1 (ja) | 2017-03-16 |
US10439461B2 (en) | 2019-10-08 |
EP3079234B1 (en) | 2019-07-31 |
US20170005537A1 (en) | 2017-01-05 |
JP6122148B2 (ja) | 2017-04-26 |
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