Patent ID: 8674649
Filing Date: 2014-03-18
Classification: H02K,H02P

Abstract:
1. A high acceleration rotary actuator motor assembly comprising: a first phase motor element provided on a shaft, the first phase element including a first rotor carrying a plurality of magnets which alternate exposed poles, the first rotor being connected to the shaft and surrounded by a first stator formed of a plurality of interconnected segmented stator elements having a contiguous winding to form a plurality of magnetic poles; a second phase motor element provided on the shaft a first distance from the first phase motor element, the second phase motor element including a second rotor carrying a plurality of magnets which alternate exposed poles, the second rotor being connected to the shaft and surrounded by a second stator formed of a plurality of interconnected segmented stator elements having a contiguous winding to form a plurality of magnetic poles; a third phase motor element provided on the shaft a second distance from the second phase motor element, the third phase motor element including a third rotor carrying a plurality of magnets which alternate exposed poles, the third rotor being connected to the shaft and surrounded by a third stator formed of a plurality of interconnected segmented stator elements having a contiguous winding to form a plurality of magnetic poles; the second rotor and magnets being offset about the shaft from the first rotor and magnets by thirty degrees of rotation; the third rotor and magnets being offset about the shaft from the first rotor and magnets by sixty degrees of rotation; and the first, second, and third phase elements being electrically isolated from one another.