The present invention relates to a pump motor (1) with an embedded rotor, comprising: a casing (10) including a body (11) and a motor casing (12), a synchronous electric motor (20) which is arranged in the motor casing ( 12) and which includes a stator (30) and a rotor (40) with magnets (42), a shaft (50) which extends along a central axis (X1), and a wheel (60) which has a hydraulic profile adapted to the movement of a fluid (F) in the body (11); the rotor (40), the shaft (50) and the wheel (60) forming a rotatable assembly (ER1) rotatable about the central axis (X1); the stator (30) including a magnetic core, a coil (32) and an encapsulation (34) in which the coil (32) and the magnetic core are embedded; a magnetic gap (22) being defined radially between the coil (32) and the magnets (42); encapsulation (34) having an annular portion (35) surrounding the rotor (40) and a bottom (36) extending through the central axis (X1); the bottom (36) of the encapsulation (34) has a domed bell shape.
展开▼
