Patent ID: 7583001

Claim:
An electric motor comprising: a stator assembly, further comprising a stator axle, a plurality of electric coils, forming a plurality of electric coil magnetic poles, a stator plate holder, coaxial to fixed on said stator axle and fixed on an outer surface thereof, at least one stator plate assemblies mounted on said stator plate holder, each of said stator plate assemblies further comprising a plurality of stacks of stator sector plates, each of said stator sector plates having at least one elongated alignment ridge diametrically oriented on a middle portion of a first major surface thereof, and at least one matching alignment valley opposingly positioned on a second major surface of said sector plates for nesting with said alignment ridge of an adjacent stator sector plate thereby maintaining alignment within said stack of stator sector plates, at least one fixing hole, centrally located, for fixing said stacks of stator sector plates to said stator plate holder, and at least one of said plurality of electric coils, wound around each of said stacks of stator sector plates; and a rotor assembly, coaxial to and outward of said stator assembly, further comprising a casing, coaxial to said stator axle, a plurality of permanent magnets, forming a plurality of permanent magnet poles, said plurality of permanent magnet poles being substantially equal in number to the number of said plurality of electric coil magnetic poles, a rotor magnet retainer plate assembly, placed coaxial to and fixed to an inward surface of said casing, further comprising a stack of rotor plates, each of said rotor plates having an inner radius and an outer radius; and comprising a plurality of rotor sector plates with each of said rotor sector plates having at least one elongated alignment ridge oriented substantially parallel to said outer radius near each of a first and a second end portion of a first major surface thereof, at least one matching alignment valley opposingly positioned on a second major surface for nesting with said alignment ridge of an adjacent rotor sector plate, thereby maintaining alignment within said stack of rotor sector plates, and said plurality of permanent magnets being mounted on an inward surface of said stack of rotor plates; wherein each of said rotor magnet retainer assemblies has a holding groove for accommodating each of said at least one permanent magnets.