WO2022208929A1 - 回転電機の固定子、回転電機 - Google Patents
回転電機の固定子、回転電機 Download PDFInfo
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- WO2022208929A1 WO2022208929A1 PCT/JP2021/032029 JP2021032029W WO2022208929A1 WO 2022208929 A1 WO2022208929 A1 WO 2022208929A1 JP 2021032029 W JP2021032029 W JP 2021032029W WO 2022208929 A1 WO2022208929 A1 WO 2022208929A1
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- Prior art keywords
- stator
- slot
- electric machine
- conductor
- rotary electric
- Prior art date
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- 238000004804 winding Methods 0.000 claims abstract description 108
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- 239000004065 semiconductor Substances 0.000 description 13
- 238000006243 chemical reaction Methods 0.000 description 10
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- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 229910052779 Neodymium Inorganic materials 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
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- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
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- 229910052987 metal hydride Inorganic materials 0.000 description 1
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- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 1
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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
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
-
- 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
- H02K3/28—Layout of windings or of connections between windings
Definitions
- the present invention relates to a stator of a rotating electrical machine and a rotating electrical machine.
- Patent Document 1 when the wave winding direction of the coil is unified with only one type of slot pitch on the opposite connection side, four parallel circuits are used to increase the number of parallel circuits per phase. , there is a problem that a phase difference occurs in the circuit. Further, under the same conditions, if the wave winding direction of the coil is not unified, there is a problem that the number of connecting parts for connecting the coil ends increases and the cost increases.
- the vehicle 100 is equipped with an engine 120 , a first rotating electric machine 200 , a second rotating electric machine 202 , and a battery 180 .
- the vehicle 100 is also equipped with a battery (not shown) for supplying low-voltage power such as 14-volt power. supply power.
- the battery 180 is connected to the rotating electric machines 200 and 202 via the DC terminals of the power conversion device 600. Supply DC power.
- the power conversion device 600 is provided with a power semiconductor (described later in FIG. 2) that constitutes an inverter for driving the rotating electric machines 200 and 202 . Based on the torque control command from the integrated control device 170, the power conversion device 600 controls the switching operation of the power semiconductor so as to generate the torque output or generated power as commanded. Due to the switching operation of the power semiconductors, rotating electric machines 200 and 202 are operated as electric motors or as generators.
- a power semiconductor described later in FIG. 2
- the power conversion device 600 controls the switching operation of the power semiconductor so as to generate the torque output or generated power as commanded. Due to the switching operation of the power semiconductors, rotating electric machines 200 and 202 are operated as electric motors or as generators.
- the power modules 610 and 620 have a three-phase bridge circuit, and series circuits corresponding to three phases are electrically connected in parallel between the positive and negative sides of the battery 180, respectively.
- Each series circuit includes a power semiconductor 21 forming an upper arm and a power semiconductor 21 forming a lower arm, and these power semiconductors 21 are connected in series.
- the power module 610 and the power module 620 have substantially the same circuit configuration, and the power module 610 will be representatively described below.
- the control circuit 648 constitutes a control section of each inverter device, and is composed of a microcomputer that calculates a control signal (control value) for operating (turning on/off) a plurality of switching power semiconductor elements. .
- a control circuit 648 receives a torque command signal (torque command value) from a host controller, sensor outputs of current sensors 660 and 662, and sensor outputs of rotation sensors mounted on rotating electric machines 200 and 202.
- FIG. Control circuit 648 calculates control values based on these input signals and outputs control signals for controlling switching timings to drive circuits 652 and 656 .
- FIG. 3 shows a cross-sectional view of the rotating electric machine 200 of FIG. Note that the rotating electrical machine 200 and the rotating electrical machine 202 have substantially the same structure, and the structure of the rotating electrical machine 200 will be described below as a representative example. However, the structure described below need not be employed in both rotating electric machines 200 and 202, and may be employed in only one of them.
- a stator 230 is held inside the housing 212 .
- Stator 230 comprises a stator core 232 and stator windings 238 .
- a rotor 250 is rotatably held on the inner peripheral side of the stator core 232 via a gap 222 .
- the permanent magnets 254 act as field poles of the rotor 250 and have an 8-pole configuration in this embodiment.
- the circumferential width of the hole 253 is set larger than the circumferential width of the permanent magnets 254 (254a, 254b), and the hole spaces 257 on both sides of the permanent magnets 254 function as magnetic gaps.
- the hole space 257 may be filled with an adhesive, or may be integrally fixed with the permanent magnet 254 with molding resin.
- the first star connection, the second star connection, the third star connection, and the fourth star connection are electrically connected between U phases, between V phases, and between W phases, respectively. It is connected.
- FIG. 8 is a first connection layout diagram according to one embodiment of the present invention. Note that slot number 46 to slot number 13 are shown in the horizontal direction of FIG. 8, and the rotation direction of the rotor is from left to right in the drawing.
- the coil end portions 241a to 241d connecting the slot conductors 233 of the layers 1 and 2 are also connected in the same manner as the connection method of the layers 5 and 6. Therefore, the description is omitted.
- an output line connecting the slot conductor 233 and another device, and 2n from the inner peripheral side of the rotary electric machine 200 (202) where n is a natural number. and a jumper conductor 243 connecting the slot conductor 233 arranged on the th layer and the slot conductor 233 arranged on the 2n+1-th layer. Since it did in this way, embodiment of this invention can be employ
- a rotating electrical machine 200 (202) that employs the embodiment of the present invention includes a stator 230 and a rotor 250 facing the stator of the rotating electrical machine with a predetermined gap therebetween. With this configuration, it is possible to provide rotating electrical machine 200 (202) that achieves both reduction in the number of connection parts 243 and improvement in output.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Windings For Motors And Generators (AREA)
Abstract
Description
本発明による回転電機の固定子及び回転電機は、回転電機のみによって走行する純粋な電気自動車や、エンジンと回転電機の双方によって駆動されるハイブリッド型の電気自動車にも適用できるが、以下ではハイブリッド型の電気自動車を例に説明する。
200,202・・・回転電機
212・・・ハウジング
214・・・エンドブラケット
218・・・シャフト
222・・・空隙
224・・・レゾルバ
226・・・あて板
230・・・固定子
232・・・固定子コア
233・・・スロット導体
236・・・ティース
237・・・スロット
238・・・固定子巻線
241・・・コイルエンド
241a・・・反接続側渡り導体
241b・・・接続側渡り導体
241c・・・反接続側渡り導体
241d・・・接続側渡り導体
242・・・口出し線
243・・・結線部品(ジャンパー導体)
250・・・回転子
252・・・回転子鉄心
253・・・穴
254,254a,254b・・・永久磁石
257・・・穴空間
600・・・電力変換装置
610,620・・・パワーモジュール
660・・・電流センサ
Claims (9)
- 複数のスロットが形成された固定子コアと、
前記固定子コアの各スロットに挿通されて複数のレイヤのうちいずれか一つを構成するスロット導体と、異なるスロットに挿通された一対の前記スロット導体の同一側端部同士を接続してコイルエンドを構成する渡り導体と、を有する波巻の周回巻線を複数有する複数相の固定子巻線と、を備えた回転電機の固定子であって、
前記固定子巻線は、相ごとに複数の並列回路をそれぞれ構成する複数の相巻線群を有し、
スロットピッチをNp、所定の自然数をN1、毎極毎相のスロット数をNsppとした場合、一方の前記コイルエンドにおいて、同一の前記相巻線群における前記渡り導体は、Np=N1で前記スロットを跨いで前記スロット導体間を接続する第1渡り導体と、Np=N1+Nsppで前記スロットを跨いで前記スロット導体間を接続する第2渡り導体と、を含み、
前記第1渡り導体と前記第2渡り導体とは、前記固定子コアの周方向に交互に配置される
回転電機の固定子。 - 請求項1に記載の回転電機の固定子であって、
所定の自然数をN2としたとき、
他方の前記コイルエンドにおいて、同一の前記相巻線群における前記渡り導体は、Np=N2で前記スロットを跨いで前記スロット導体間を接続する第3渡り導体を含む
回転電機の固定子。 - 請求項2に記載の回転電機の固定子であって、
N2=N1-1である
回転電機の固定子。 - 請求項2に記載の回転電機の固定子であって、
N2=N1+1である
回転電機の固定子。 - 請求項1に記載の回転電機の固定子であって、
毎極毎スロット数をNとした場合、N1=Nである
回転電機の固定子。 - 請求項1乃至5のいずれかに記載の回転電機の固定子であって、
他方の前記コイルエンドにおいて、前記スロット導体と他の装置とを接続する出力線と、
nを自然数としたときに、前記回転電機の内周側から2n番目の前記レイヤに配置される前記スロット導体と2n+1レイヤ目に配置される前記スロット導体とを接続するジャンパー導体と、を備える
回転電機の固定子。 - 請求項6に記載の回転電機の固定子であって、
前記回転電機の軸方向からみた場合、並列回路数をLとすると、
前記ジャンパー導体は、当該ジャンパー導体と前記回転電機の回転軸の中心とを結んだ仮想線と、前記出力線と前記回転軸中心とを結んだ仮想線と、の間の角度が(360°/L)×Nspp×2となる位置に配置される
回転電機の固定子。 - 請求項6に記載の回転電機の固定子であって、
前記出力線と接続する第1スロット導体と、
前記ジャンパー導体と接続する第2スロット導体と、が同一の当該スロット内に配置され、
前記第1スロット導体は、前記レイヤの最外周側に配置される
回転電機の固定子。 - 請求項1乃至8のいずれかに記載の回転電機の固定子と、
当該回転電機の固定子とは所定の隙間を介して対向する回転子と、を備える
回転電機。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202180092751.9A CN116830428A (zh) | 2021-03-29 | 2021-08-31 | 旋转电机的定子、旋转电机 |
JP2023510185A JPWO2022208929A1 (ja) | 2021-03-29 | 2021-08-31 | |
DE112021006414.2T DE112021006414T5 (de) | 2021-03-29 | 2021-08-31 | Stator für eine drehende elektrische maschine und drehende elektrische maschine |
US18/264,338 US20240120793A1 (en) | 2021-03-29 | 2021-08-31 | Stator for rotary electric machine and rotary electric machine |
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JP2021056206 | 2021-03-29 | ||
JP2021-056206 | 2021-03-29 |
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PCT/JP2021/032029 WO2022208929A1 (ja) | 2021-03-29 | 2021-08-31 | 回転電機の固定子、回転電機 |
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US (1) | US20240120793A1 (ja) |
JP (1) | JPWO2022208929A1 (ja) |
CN (1) | CN116830428A (ja) |
DE (1) | DE112021006414T5 (ja) |
WO (1) | WO2022208929A1 (ja) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013145976A1 (ja) * | 2012-03-29 | 2013-10-03 | 本田技研工業株式会社 | 回転電機のステータ構造 |
WO2018012554A1 (ja) * | 2016-07-15 | 2018-01-18 | 株式会社デンソー | 回転電機の固定子 |
WO2020195129A1 (ja) * | 2019-03-28 | 2020-10-01 | 株式会社デンソー | 回転電機、およびその固定子 |
Family Cites Families (1)
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JP6585826B2 (ja) | 2016-03-31 | 2019-10-02 | 日立オートモティブシステムズ株式会社 | 回転電機の固定子及びそれを用いた回転電機 |
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2021
- 2021-08-31 US US18/264,338 patent/US20240120793A1/en active Pending
- 2021-08-31 WO PCT/JP2021/032029 patent/WO2022208929A1/ja active Application Filing
- 2021-08-31 JP JP2023510185A patent/JPWO2022208929A1/ja active Pending
- 2021-08-31 CN CN202180092751.9A patent/CN116830428A/zh active Pending
- 2021-08-31 DE DE112021006414.2T patent/DE112021006414T5/de active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013145976A1 (ja) * | 2012-03-29 | 2013-10-03 | 本田技研工業株式会社 | 回転電機のステータ構造 |
WO2018012554A1 (ja) * | 2016-07-15 | 2018-01-18 | 株式会社デンソー | 回転電機の固定子 |
WO2020195129A1 (ja) * | 2019-03-28 | 2020-10-01 | 株式会社デンソー | 回転電機、およびその固定子 |
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DE112021006414T5 (de) | 2023-09-21 |
US20240120793A1 (en) | 2024-04-11 |
CN116830428A (zh) | 2023-09-29 |
JPWO2022208929A1 (ja) | 2022-10-06 |
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