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1. JP2020043760 - ELECTRIC DRIVE MOTOR

Office Japon
Numéro de la demande 2019220969
Date de la demande 06.12.2019
Numéro de publication 2020043760
Date de publication 19.03.2020
Type de publication A
CPC
H02K 1/2746
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
1Details of the magnetic circuit
06characterised by the shape, form or construction
22Rotating parts of the magnetic circuit
27Rotor cores with permanent magnets
2706Inner rotor
272where the magnetisation axis of the magnets is radial or tangential
274consisting of a plurality of circumferentially positioned magnets
2746consisting of magnets arranged with the same polarity
H02K 1/276
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
1Details of the magnetic circuit
06characterised by the shape, form or construction
22Rotating parts of the magnetic circuit
27Rotor cores with permanent magnets
2706Inner rotor
272where the magnetisation axis of the magnets is radial or tangential
274consisting of a plurality of circumferentially positioned magnets
2753consisting of magnets or groups of magnets arranged with alternating polarity
276Magnets embedded in the magnetic core
H02K 2213/03
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
2213Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
03Machines characterised by numerical values, ranges, mathematical expressions or similar information
H02K 1/278
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
1Details of the magnetic circuit
06characterised by the shape, form or construction
22Rotating parts of the magnetic circuit
27Rotor cores with permanent magnets
2706Inner rotor
272where the magnetisation axis of the magnets is radial or tangential
274consisting of a plurality of circumferentially positioned magnets
2753consisting of magnets or groups of magnets arranged with alternating polarity
278Surface mounted magnets; Inset magnets
H02K 1/2766
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
1Details of the magnetic circuit
06characterised by the shape, form or construction
22Rotating parts of the magnetic circuit
27Rotor cores with permanent magnets
2706Inner rotor
272where the magnetisation axis of the magnets is radial or tangential
274consisting of a plurality of circumferentially positioned magnets
2753consisting of magnets or groups of magnets arranged with alternating polarity
276Magnets embedded in the magnetic core
2766having a flux concentration effect
H02K 7/006
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
KDYNAMO-ELECTRIC MACHINES
7Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
006Structural association of a motor or generator with the drive train of a motor vehicle
Déposants JAGUAR LAND ROVER LTD
ジャガー ランド ローバー リミテッド
Inventeurs JOSE SOLER
ホセ・ソレル
ALEXANDROS MICHAELIDES
アレクサンドロス・ミカエリデス
ISTVAN KIRALY
イシュトヴァーン・キラーイ
Mandataires 鮫島 睦
中野 晴夫
Données relatives à la priorité 1510273.4 12.06.2015 GB
Titre
(EN) ELECTRIC DRIVE MOTOR
(JA) 電気駆動モータ
Abrégé
(EN)

PROBLEM TO BE SOLVED: To reduce torque ripples which may generate noises and vibrations while an electric drive motor is operating.

SOLUTION: An electric drive motor 101 for a vehicle has: a stator 103 having a plurality of slots 107; and a rotor 102 having a plurality of poles. The poles each have at least first and second permanent magnets 104-1, 104-2 and 105 with the center on a d-axis of the pole, and a plurality of flux barriers 109-1 and 109-2. Proximal to an outer surface of the rotor, a first angular width ξ1 between first and second main flux barriers is defined by a value obtained by dividing a pole step τ by an order number n1 of a torque harmonic to be disrupted.

SELECTED DRAWING: Figure 2A

COPYRIGHT: (C)2020,JPO&INPIT

(JA)

【課題】電気駆動モータの動作中に騒音および振動を発生させ得るトルクリップル(脈動)を低減すること。
【解決手段】車両用電気駆動モータ101は、複数のスロット107を有するステータ103および複数の極を有するロータ102を含む。極はそれぞれ、極のd軸を中心とする第一、二の永久磁石104−1,2、105および複数の磁束バリヤ109−1,2を少なくとも含む。ロータの外面の近傍において、第一および第二の主要磁束バリヤの間の第一の角度幅ξは、ポールステップτを、防止すべきトルクハーモニックの次数nで除した値で定義される。
【選択図】図2A