Electric motor having a U-shaped stator iron
AssigneeU.S. Philips Corporation
InventorsLeo Bertram, Hugo Schemmann, Jan de Boer
Life of this patent
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Abstract
The invention relates to an electric motor having a U-shaped stator iron such as a series-, split-pole- or single-phase synchronous motor. Between the free shank ends of the stator, pole shoes are formed, and on the shanks, induction coils are provided. The shanks of the stator iron in the area between the pole shoes and the coils are bent with respect to the central plane of the stator iron in such manner that the shaft of the rotor with the central plane of the stator iron encloses an angle differing from the perpendicular to the central plane.
Claims24
An electric motor which comprises a rotor having a shaft and a U-shaped stator having two shanks, each shank having a free end, said motor also including induction coils disposed around each of said shanks, each of said shanks being formed to define pole shoes between the free ends of each of said shanks and said induction coil disposed on that shank, said U-shaped stator having the major portion thereof configured so that an imaginary central plane extends through all of said stator except the free ends of said shanks, each of said shanks in the area between said pole shoes and said coils being bent with respect to said central plane in such a manner that said shaft encloses with said central plane an angle which is less than 90.degree..
An electric motor which comprises a rotor having a shaft and a U-shaped stator having two shanks, each shank having a free end, said motor also including induction coils disposed around each of said shanks, each of said shanks being formed to define pole shoes between the free ends of each of said shanks and said induction coil disposed on that shank, said U-shaped stator having the major portion thereof configured so that an imaginary central plane extends through all of said stator except the free ends of said shanks, each of said shanks in the area between said pole shoes and said coils being bent with respect to said central plane in such a manner that said shaft encloses with said central plane an angle which is more than 90.degree..
Dependencies are inferred from the claim text.