PROBLEM TO BE SOLVED: To provide a rotation angle sensor which does not need to separately provide a mechanism for electrically connecting a sensor to a control unit, which can suppress dimensions and cost, which is free from the magnetic interference between sensors even when multiple systems are constituted, which can ensure high robustness, and which can accurately detect a rotation angle, a brushless motor equipped with the rotation angle sensor, an electric power steering device mounting the brushless motor, and a vehicle.SOLUTION: A control unit having a control board is provided in one end portion of a rotary shaft opposite to an output side thereof, a magnet section is fixed to one end portion of the rotary shaft, the magnet section is two-pole magnetized in the perpendicular direction to the rotary shaft, a magnetic detection element is disposed at a position corresponding to the magnet section of the control board, and the magnetic detection element detects a rotation angle of the rotary shaft via the magnet section.SELECTED DRAWING: Figure 4
【課題】センサとコントロールユニットを電気的に接続するための機構を別途配設する必要がなく、寸法及びコストを抑えることが可能であり、多重系を構成した場合でもセンサ間の磁気的な干渉などが発生せず、ロバスト性良く、回転角度を正確に検出することが可能な回転角度センサ及びそれを備えたブラシレスモータ並びにそれを搭載した電動パワーステアリング装置及び車両を提供する。【解決手段】制御基板を有するコントロールユニットが回転軸の出力側とは反対側の一端部に配設され、回転軸の一端部に磁石部が固定され、磁石部は回転軸と垂直方向に2極着磁されており、制御基板の磁石部に対向する位置に磁気検出素子が設置され、磁気検出素子により磁石部を介して回転軸の回転角度を検出する。【選択図】図4
ROTATION ANGLE SENSOR, BRUSHLESS MOTOR EQUIPPED WITH ROTATION ANGLE SENSOR, ELECTRIC POWER STEERING DEVICE MOUNTING BRUSHLESS MOTOR, AND VEHICLE
回転角度センサ及びそれを備えたブラシレスモータ並びにそれを搭載した電動パワーステアリング装置及び車両
2016-06-30
Patent
Electronic Resource
Japanese
IPC: | G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE , Anzeigen oder Aufzeichnen in Verbindung mit Messen allgemein / B62D MOTOR VEHICLES , Motorfahrzeuge / G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES |
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