| 摘要 |
A dishwasher comprising directing means (5) for directing a washing liquid at least towards the first or the second spraying means (3, 4); said directing means (5) comprising: -an electric motor (50), a cam profile (53) and a switch (54) having a mobile part intended to come into contact with the cam profile (53); -a rotating element (51 ) comprising at least one washing liquid supply hole; said at least one hole can be placed in communication with the first or the second spraying means (3, 4); a rotation of said rotating element (51 ) determines a relative shift of said cam profile (53) and of said switch (54) in order to determine the opening/closing of the switch (54); said cam profile (53) comprises a plurality of concavities (63) at which there is an opening of the switch (54); -motor (50) rotation activation means (7); the motor (50) rotation activation means (7) are controlled by a pulse based electric signal; - an electric path (8) for electrically powering the motor (50); said electric path (8) comprising a first branch (81 ) along which said activation means (7) are arranged and a second branch (82) which by-passes the first branch (81 ) and along which the switch (54) is arranged; - control means (9) that monitor the duration of the various time intervals in which the switch (54) is closed or open. |
