Brushless electric motor
AssigneeDanfoss A/S
InventorsPoul E. Hansen, Jan Dyhr
Life of this patent
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Abstract
The invention relates to a brushless type electric motor having an axial air gap and is directed to a particular design and arrangement for the pole shoes thereto.
Claims13
A brushless electric motor with an axial air gap relative to a rotary axis thereof, comprising, rotor means and a stator winding coaxial with said rotary axis, first and second sets of alternately arranged U-shaped laminated shoes attached to said stator winding at equal angular spacings, said pole shoes having rectangularly shaped end faces of substantially equal area cooperable with said rotor means with said end faces of said first set of shoes having a radial transverse line of symmetry and said end faces of said second set of shoes having a radial longitudinal line of symmetry, and said first and second sets of shoes having yokes disposed respectively radially outwardly and inwardly of said stator winding.
Dependencies are inferred from the claim text.