ROTARY ELECTRIC MACHINE

To provide a rotary electric machine having a structure capable of reducing torque ripple.SOLUTION: A plurality of magnets include a pair of first magnets 41a, 41b extending in a direction away from each other in the circumferential direction from the inside to the outside in the radial direction, a...

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Main Author SUGAYA ATSUSHI
Format Patent
LanguageEnglish
Japanese
Published 27.12.2021
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Abstract To provide a rotary electric machine having a structure capable of reducing torque ripple.SOLUTION: A plurality of magnets include a pair of first magnets 41a, 41b extending in a direction away from each other in the circumferential direction from the inside to the outside in the radial direction, and a second magnet 42 that is arranged at the circumferential position between the pair of first magnets and extends in the direction orthogonal to the radial direction, and a rotor core includes a pair of first flux barriers arranged across the first magnet, a pair of second flux barriers arranged across the second magnet, and third flux barriers 53a and 53b arranged between the first flux barrier and the second flux barrier in the circumferential direction. In a certain state in which the circumferential center of the second magnet is located at the same circumferential position as the circumferential center of one tooth, the third flux barrier is located radially inside the other one tooth.SELECTED DRAWING: Figure 3 【課題】トルクリップルを低減できる構造を有する回転電機を提供する。【解決手段】複数のマグネットは、径方向内側から外側に向かうに従って互いに周方向に離れる方向に延びる一対の第1マグネット41a,41bと、一対の第1マグネット同士の間の周方向位置に配置され、径方向と直交する方向に延びる第2マグネット42と、を含む。ロータコアは、第1マグネットを挟んで配置された一対の第1フラックスバリア部と、第2マグネットを挟んで配置された一対の第2フラックスバリア部と、第1フラックスバリア部と第2フラックスバリア部との周方向の間に配置された第3フラックスバリア部53a,53bと、を有する。第2マグネットの周方向中心が或る1つのティースの周方向中心と同じ周方向位置に配置された或る状態において、第3フラックスバリア部は、他の1つのティースの径方向内側に位置する。【選択図】図3
AbstractList To provide a rotary electric machine having a structure capable of reducing torque ripple.SOLUTION: A plurality of magnets include a pair of first magnets 41a, 41b extending in a direction away from each other in the circumferential direction from the inside to the outside in the radial direction, and a second magnet 42 that is arranged at the circumferential position between the pair of first magnets and extends in the direction orthogonal to the radial direction, and a rotor core includes a pair of first flux barriers arranged across the first magnet, a pair of second flux barriers arranged across the second magnet, and third flux barriers 53a and 53b arranged between the first flux barrier and the second flux barrier in the circumferential direction. In a certain state in which the circumferential center of the second magnet is located at the same circumferential position as the circumferential center of one tooth, the third flux barrier is located radially inside the other one tooth.SELECTED DRAWING: Figure 3 【課題】トルクリップルを低減できる構造を有する回転電機を提供する。【解決手段】複数のマグネットは、径方向内側から外側に向かうに従って互いに周方向に離れる方向に延びる一対の第1マグネット41a,41bと、一対の第1マグネット同士の間の周方向位置に配置され、径方向と直交する方向に延びる第2マグネット42と、を含む。ロータコアは、第1マグネットを挟んで配置された一対の第1フラックスバリア部と、第2マグネットを挟んで配置された一対の第2フラックスバリア部と、第1フラックスバリア部と第2フラックスバリア部との周方向の間に配置された第3フラックスバリア部53a,53bと、を有する。第2マグネットの周方向中心が或る1つのティースの周方向中心と同じ周方向位置に配置された或る状態において、第3フラックスバリア部は、他の1つのティースの径方向内側に位置する。【選択図】図3
Author SUGAYA ATSUSHI
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Snippet To provide a rotary electric machine having a structure capable of reducing torque ripple.SOLUTION: A plurality of magnets include a pair of first magnets 41a,...
SourceID epo
SourceType Open Access Repository
SubjectTerms CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
Title ROTARY ELECTRIC MACHINE
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