BRUSHLESS MOTOR
PROBLEM TO BE SOLVED: To provide a brushless motor that can detect the rotation angle of a rotor with a small number of components.SOLUTION: A rotation angle detection part 14 includes light reflection parts (light reflection surfaces 15a to 15c) that are provided on a motor shaft 3 side, and photoe...
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| Format: | Patent |
| Sprache: | eng ; jpn |
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| Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a brushless motor that can detect the rotation angle of a rotor with a small number of components.SOLUTION: A rotation angle detection part 14 includes light reflection parts (light reflection surfaces 15a to 15c) that are provided on a motor shaft 3 side, and photoelectronic sensors (16a to 16c) that project position detection light onto the light reflection parts (15a to 15c) and detect reflection light of the position detection light reflected on the light reflection parts (light reflection surfaces 15a to 15c).
【課題】少ない部品点数でロータの回転角を検出できるブラシレスモータを提供すること。【解決手段】回転角検出装置１４は、モータシャフト３側に設けられた光反射部（光反射面１５ａ〜１５ｃ）と、光反射部（光反射面１５ａ〜１５ｃ）に位置検出光を投影すると共に、前記光反射部（光反射面１５ａ〜１５ｃ）で反射させられた前記位置検出光の反射光を検出する光電センサ（１６ａ〜１６ｃ）とを備えている。【選択図】図６ |
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