JP2001178047A5 - - Google Patents
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- Publication number
- JP2001178047A5 JP2001178047A5 JP2000337249A JP2000337249A JP2001178047A5 JP 2001178047 A5 JP2001178047 A5 JP 2001178047A5 JP 2000337249 A JP2000337249 A JP 2000337249A JP 2000337249 A JP2000337249 A JP 2000337249A JP 2001178047 A5 JP2001178047 A5 JP 2001178047A5
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- rotor core
- electric vehicle
- rotor
- stator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000003780 insertion Methods 0.000 claims 8
- 230000004907 flux Effects 0.000 claims 4
- 238000004080 punching Methods 0.000 claims 2
- 230000001629 suppression Effects 0.000 claims 2
- 238000004804 winding Methods 0.000 claims 2
Claims (6)
固定子と、
該固定子に空隙を介して配置された回転子と
を有し、
前記回転子は、
回転子鉄心と、
該回転子鉄心に埋め込まれた複数の永久磁石と
を備えており、
前記回転子鉄心には、
複数の永久磁石挿入孔と、
リラクタンストルクを発生させるための補助磁極部と、
前記永久磁石の磁束を前記固定子側に伝達するための磁極片部と、
コギングトルクを抑制するための磁気的な空隙と
が形成されており、
前記永久磁石挿入孔は、その前記固定子側に前記磁極片部が形成されるように、前記回転子鉄心を軸方向に打ち抜いて形成したものであり、前記回転子鉄心の内部に環状に配置されており、
前記永久磁石は、交互に逆極性となるように前記永久磁石挿入孔に挿入されて前記回転子鉄心の内部に配置されており、
前記補助磁極部は、周方向に隣接する前記永久磁石間に形成されており、
前記磁気的な空隙は、前記回転子鉄心の内部にあって、前記永久磁石の周方向端部と前記補助磁極部との間に形成されたものであり、前記永久磁石と前記補助磁極部との間における前記永久磁石の磁束密度分布の変化を緩やかにする
ことを特徴とする電動車両駆動用の永久磁石回転電機。Which is used to drive an electric vehicle,
A stator,
Having a rotor disposed on the stator via a gap,
The rotor,
A rotor core,
A plurality of permanent magnets embedded in the rotor core,
In the rotor core,
A plurality of permanent magnet insertion holes,
An auxiliary magnetic pole part for generating reluctance torque,
A pole piece for transmitting the magnetic flux of the permanent magnet to the stator side,
A magnetic gap for suppressing cogging torque is formed,
The permanent magnet insertion hole is formed by punching out the rotor core in the axial direction so that the magnetic pole piece is formed on the stator side, and is annularly disposed inside the rotor core. Has been
The permanent magnets are inserted into the permanent magnet insertion holes so as to have alternately opposite polarities and are disposed inside the rotor core,
The auxiliary magnetic pole portion is formed between the permanent magnets adjacent in the circumferential direction,
The magnetic gap is inside the rotor core and is formed between a circumferential end of the permanent magnet and the auxiliary magnetic pole part, and the permanent magnet and the auxiliary magnetic pole part Wherein the change in the magnetic flux density distribution of the permanent magnet during the period is moderated.
固定子と、
該固定子に空隙を介して配置された回転子と
を有し、
前記回転子は、
回転子鉄心と、
該回転子鉄心に埋め込まれた複数の永久磁石と
を備えており、
前記回転子鉄心には、
複数の永久磁石挿入孔と、
リラクタンストルクを発生させるための補助磁極部と、
前記永久磁石の磁束を前記固定子側に伝達するための磁極片部と、
コギングトルクを抑制するための磁気的な空隙と
が形成されており、
前記永久磁石挿入孔は、その前記固定子側に前記磁極片部が形成されるように、前記回転子鉄心を軸方向に打ち抜いて形成したものであり、前記回転子鉄心の内部に環状に配置されており、
前記永久磁石は、交互に逆極性となるように前記永久磁石挿入孔に挿入されて前記回転子鉄心の内部に配置されており、
前記補助磁極部は、周方向に隣接する前記永久磁石挿入孔間に形成されており、
前記磁気的な空隙は、前記回転子鉄心の内部にあって、前記永久磁石挿入孔に前記永久磁石を挿入することによって前記永久磁石の周方向端部に形成されるものであり、前記永久磁石と前記補助磁極部との間における前記永久磁石の磁束密度分布の変化を緩やかにする
ことを特徴とする電動車両駆動用の永久磁石回転電機。Which is used to drive an electric vehicle,
A stator,
Having a rotor disposed on the stator via a gap,
The rotor,
A rotor core,
A plurality of permanent magnets embedded in the rotor core,
In the rotor core,
A plurality of permanent magnet insertion holes,
An auxiliary magnetic pole part for generating reluctance torque,
A pole piece for transmitting the magnetic flux of the permanent magnet to the stator side,
A magnetic gap for suppressing cogging torque is formed,
The permanent magnet insertion hole is formed by punching out the rotor core in the axial direction so that the magnetic pole piece is formed on the stator side, and is annularly disposed inside the rotor core. Has been
The permanent magnets are inserted into the permanent magnet insertion holes so as to have alternately opposite polarities and are disposed inside the rotor core,
The auxiliary magnetic pole portion is formed between the permanent magnet insertion holes adjacent in the circumferential direction,
The magnetic air gap is formed inside the rotor core, and is formed at a circumferential end of the permanent magnet by inserting the permanent magnet into the permanent magnet insertion hole. A permanent magnet rotating electric machine for driving an electric vehicle, wherein a change in magnetic flux density distribution of the permanent magnet between the magnetic pole and the auxiliary magnetic pole portion is moderated.
前記磁気的な空隙の前記回転子半径方向の厚さは、前記永久磁石の前記回転子径方向の厚さよりも小さい
ことを特徴とする電動車両駆動用の永久磁石回転電機。The permanent magnet rotating electric machine for driving an electric vehicle according to claim 2,
A thickness of the magnetic gap in a radial direction of the rotor is smaller than a thickness of the permanent magnet in a radial direction of the rotor.
前記磁気的な空隙には非磁性材が配置又は充填されている
ことを特徴とする電動車両駆動用の永久磁石回転電機。The permanent magnet rotating electric machine for driving an electric vehicle according to claim 2,
A permanent magnet rotating electric machine for driving an electric vehicle, wherein a nonmagnetic material is disposed or filled in the magnetic gap.
前記固定子は、固定子巻線が巻かれた固定子鉄心を備えており、
前記電動車両の低速運転状態の場合、前記固定子巻線による電機子起磁力の合成ベクトルが、前記補助磁極部の中心位置よりも前記回転子の回転方向側に向くように制御されることを特徴とする電動車両駆動用の永久磁石回転電機。The permanent magnet rotating electric machine for driving an electric vehicle according to claim 1,
The stator includes a stator core on which a stator winding is wound,
In the case of the low-speed driving state of the electric vehicle, the combined vector of the armature magnetomotive force by the stator winding is controlled so as to face the rotation direction side of the rotor from the center position of the auxiliary magnetic pole portion. A permanent magnet rotating electric machine for driving an electric vehicle.
前記駆動装置は、請求項１乃至５のいずれかに記載された永久磁石回転電機を備えている
ことを特徴とする電動車両。In an electric vehicle including a driving device,
An electric vehicle comprising the permanent magnet rotating electric machine according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000337249A JP3790665B2 (en) | 2000-10-31 | 2000-10-31 | Permanent magnet rotating electric machine and electric vehicle using permanent magnet rotating electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000337249A JP3790665B2 (en) | 2000-10-31 | 2000-10-31 | Permanent magnet rotating electric machine and electric vehicle using permanent magnet rotating electric machine |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27582696A Division JP3308828B2 (en) | 1996-10-18 | 1996-10-18 | Permanent magnet rotating electric machine and electric vehicle using the same |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004132390A Division JP3790765B2 (en) | 2004-04-28 | 2004-04-28 | Permanent magnet rotating electric machine and electric vehicle using permanent magnet rotating electric machine |
| JP2005142080A Division JP3790769B2 (en) | 2005-05-16 | 2005-05-16 | Permanent magnet rotating electric machine and electric vehicle using permanent magnet rotating electric machine |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2001178047A JP2001178047A (en) | 2001-06-29 |
| JP2001178047A5 true JP2001178047A5 (en) | 2004-10-28 |
| JP3790665B2 JP3790665B2 (en) | 2006-06-28 |
Family
ID=18812664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000337249A Expired - Lifetime JP3790665B2 (en) | 2000-10-31 | 2000-10-31 | Permanent magnet rotating electric machine and electric vehicle using permanent magnet rotating electric machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3790665B2 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003061283A (en) * | 2001-08-17 | 2003-02-28 | Mitsubishi Electric Corp | Rotor and stator of dynamo-electric machine, and motor, compressor, and freezing cycle, and method of manufacturing rotor of dynamo-electric machine |
| US7262526B2 (en) * | 2002-06-20 | 2007-08-28 | Kabushiki Kaisha Toshiba | Rotor for permanent magnet motor of outer rotor type |
| JP4469187B2 (en) * | 2004-01-30 | 2010-05-26 | アイチエレック株式会社 | Permanent magnet motor |
| JP4449035B2 (en) | 2004-03-10 | 2010-04-14 | 日立オートモティブシステムズ株式会社 | Permanent magnet rotating electric machine for electric vehicles |
| JP2007020350A (en) * | 2005-07-11 | 2007-01-25 | Matsushita Electric Ind Co Ltd | Magnets-embedded type motor |
| JP2008113531A (en) * | 2006-10-31 | 2008-05-15 | Hitachi Ltd | Rotary electric machine |
| JP5334555B2 (en) * | 2008-12-16 | 2013-11-06 | 三菱電機株式会社 | Electric motor and refrigerant compressor equipped with the same |
| JP5434415B2 (en) | 2009-09-14 | 2014-03-05 | 株式会社豊田自動織機 | Permanent magnet embedded rotary electric machine |
| JP6862925B2 (en) * | 2017-03-02 | 2021-04-21 | 株式会社豊田中央研究所 | Rotating machine |
| CN113178967B (en) * | 2021-04-30 | 2023-04-07 | 哈尔滨工业大学 | High-power high-speed permanent magnet synchronous motor rotor |
-
2000
- 2000-10-31 JP JP2000337249A patent/JP3790665B2/en not_active Expired - Lifetime
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