Detecting device of unbalance conditions particularly for washing machines and similar household appliances, activated by a synchronous electric motor
AssigneeAskoll Holding S.r.l.
InventorElio Marioni
Life of this patent
Estimating the term…
Abstract
A detecting device of unbalance conditions, particularly for washing machines (1) and similar household appliances comprising a rotary drum (2a) supported by a tank (2) and activated by a synchronous electric motor (3) with an internal stator (5) having corresponding windings fixedly mounted on a central axis (10). The detecting device comprises an electronic control board (18) for the synchronous motor (3) associated with the stator (5) and incorporating at least one accelerometer (51) to constantly monitor the acceleration of said tank (2) and indirectly the unbalance of said washing machine (1) and the unbalance of a load comprised in the rotary drum (2a).
Claims24
A detecting device for detecting imbalance conditions of a rotary drum of a washing machine having the rotary drum supported by a tank and activated by a synchronous electric motor, the synchronous electric motor comprising an internal stator having corresponding windings fixedly mounted on a central axis and an external rotor, wherein the detecting device comprises:
- an electronic control board for the synchronous electric motor supported by the stators;
- and
- at least one accelerometer to constantly monitor the accelerations of the tank,
- wherein said accelerometer is fixed on top of said electronic control board.
A washing machine having a detecting device for imbalance conditions of a rotary drum, comprising:
- a rotary drum supported by a tank and activated by a synchronous electric motor;
- the synchronous electric motor comprising an internal stator and an external rotor, the internal stator having corresponding windings fixedly mounted on a central axis;
- wherein the detecting device has an electronic control board for the synchronous electric motor supported by the stator and at least one accelerometer to constantly monitor the accelerations of the tanks,
- wherein said accelerometer is fixed on top of said electronic control board.
Dependencies are inferred from the claim text.