Appliance driven by an electric motor

Details Appliance driven by an electric motor Appliance driven by an electric motor

H - Electricity

02

K

310/45, 318/53

H02K 7/12 (2006.01) A47J 19/02 (2006.01) H02K 7/06 (2006.01) H02K 7/118 (2006.01) H02K 7/14 (2006.01) H02K 33/00 (2006.01)

Patent

CA 1215426

11 ABSTRACT: In an appliance driven by an electric motor a tool is driven via a drive mechanism by a self-starting two-pole single-phase synchronous motor (7) which com- prises a diametrically magnetized permanent-magnet rotor (17) and a stalling device (12), which stops the rotor after a specific number of revolutions in at least one direction of rotation, upon which the direction of rota- tion is reversed automatically. The stalling device stops the rotor in positions in which the angle between the rotor-field vector (18) which intersects the rotor perpendicularly to the stator field (15) lies within an angular range (20, 21) of 60° in each direction of rota- tion of the rotor.

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