SYNCHRONOUS ELECTRIC MOTOR Russian patent published in 2013 - IPC H02K16/04 H02K21/26 H02K19/06 

FIELD: electricity.

SUBSTANCE: synchronous electric motor comprises a magnetic conductor of a stator (2) with teeth (3), made of laminated electric steel and resting against a body (1) and has a three-phase winding (4). The rotor (5) is made in the form of a hollow cylinder and comprises ferromagnetic teeth. With the help of the non-magnetic disc (9) the rotor is fixed on the shaft (8). The inner magnetic conductor (7) of the stator (2) is made in the form of a hollow cylinder from laminated electric steel, which is fixed on the body (1) with the help of a non-magnetic bushing (10) and has radially magnetised permanent magnets (6) on the outer surface, which are arranged opposite to the teeth (3) of the stator (2) and having alternating polarity. Due to design of the rotor (5) in the form of a hollow cylinder and introduction of an additional magnetic conductor (7) of the stator with permanent magnets (6), located to the teeth (3) of the stator.

EFFECT: improved energy indices of a synchronous electric motor and its dynamic characteristics.

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