Centrifugal pump for electrical household appliances, such as washing machines, dishwashers and the like.

摘要

The pump comprises a pump body (1) and a volute, mutually complementary with respect to one another, which once assembled form a waterproof container within which a permanent magnet rotor (5) and an impeller (4) are contained respectively in a first (2) and in a second chamber. The stator part of the electric motor is provided externally to said waterproof container, and thus can never be affected by the liquid. The introduced improvements relate to the coupling between impeller and rotor and to the means adapted to make the rotor chamber waterproof, so that there cannot enter therein foreign matter, and in particular metallic dust, which by remaining associated with the permanent magnet of the rotor would prevent the rotation thereof, blocking its operation.