Axial pole motor

H - Electricity – 02 – K

Patent

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Details

H02K 21/24 (2006.01)

Patent

CA 2242734

An axial pole motor includes a stator (9) and a rotor (3) which face one another across a plane perpendicular to the rotor axis, the stator having coil windings (12) substantially uniformly circumferentially spaced and lying in planes substantially perpendicalar to the rotor axis defining a number of stator poles (11), the rotor also including a number of rotor poles (4) comprising one or more permanent magnets. The number of stator poles (11) is different to the number of rotor poles (4) and the stator poles (11) and rotor poles (4) are of substantially the same size and shaped to provide a pole overlap pattern in which when any one rotor pole completely covers a facing stator pole, the difference between the number of rotor poles and the number of stator poles which exist between that rotor pole and the next rotor pole which completely covers a facing stator pole is one.

Moteur à pôles axiaux qui comporte un stator (9) et un rotor (3) qui se font face dans un plan perpendiculaire à l'axe du rotor. Le stator comporte des enroulements (12) espacés de manière pratiquement uniforme sur sa circonférence et placés dans des plans pratiquement perpendiculaires à l'axe du rotor, définissant un certain nombre de pôles (11) de stator. Le rotor possède également un certain nombre de pôles (4) de rotor comprenant un ou plusieurs aimants permanents. Le nombre des pôles (11) de stator est différent du nombre des pôles (4) de rotor et les pôles (11) de stator et les pôles (4) de rotor sont pratiquement des mêmes dimensions et de la même forme de manière à fournir une configuration de chevauchement de pôles selon laquelle, lorsque l'un des pôles de rotor couvre complètement un pôle de stator lui faisant face, la différence entre le nombre de pôles de rotor et le nombre de pôles de stator qui existe entre le pôle de rotor concernée et le prochain pôle de rotor qui couvre complètement un pôle de stator opposée est égale à un.

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