ROTARY ELECTRIC MACHINE

To provide a rotary electric machine capable of increasing the heat dissipation of a high output density single phase motor, which can be used as a power source for vacuum cleaners and propeller fans while reducing the amount of heat generation, and capable of increasing the vibration order by shift...

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Bibliographic Details
Main Authors YAMAKAWA HIRONOBU, ENOMOTO YUJI
Format Patent
LanguageEnglish
Japanese
Published 07.03.2024
Subjects
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
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Summary:To provide a rotary electric machine capable of increasing the heat dissipation of a high output density single phase motor, which can be used as a power source for vacuum cleaners and propeller fans while reducing the amount of heat generation, and capable of increasing the vibration order by shifting the vibration frequency to a higher order to reduce vibrations and noise that are annoying to people.SOLUTION: A rotary electric machine 100 driven by a single phase has a rotor 22, multiple rotor magnets 4, a shaft 5, a stator core 1, and multiple stator cores 2. Multiple single-phase motors with a ratio of 3:1 between the number of rotor magnets 4 and the number of stator cores 2 are included and multiple single-phase motors 100a, 100b, and 100c are arranged in the axial direction of the shaft 5.SELECTED DRAWING: Figure 4C 【課題】掃除機やプロペラファンの動力源として使用可能な高出力密度な単相モータの放熱性を高め、かつ、コイル導体の抵抗値を低下させて発熱量を低減でき、かつ、人に耳障りに感じる振動・騒音を低減するために、振動周波数を高次にシフトさせて振動次数を高めることが可能な回転電機を実現する。【解決手段】単相で駆動される回転電機１００において、回転子２２と、複数の回転子磁石４と、シャフト５と、固定子鉄心１と、複数の固定子コイル２と、を有する。回転子磁石４の数と、固定子コイル２の数との比が３：１である単相モータを複数備え、複数の単相モータ１００ａ、１００ｂ、１００ｃが、シャフト５の軸方向に配置されている。【選択図】図４Ｃ
Bibliography:Application Number: JP20220134137