Patent attributes
A tumble dryer (100) is provided having: a laundry drum (102) rotatably supported in a casing (110) and suitable to receive laundry to be dried. A lint filter assembly (1) can be housed in a housing (105) provided in the casing (110) so that, when the lint filter assembly (1) is placed in the housing (105), it intercepts a flow of air exiting the laundry drum (102). A humidity sensor system retrieves information about the actual humidity of the laundry in the drum (102) and has at least a pair of electrodes (20) positioned such that the laundry in the drum (102) can come into contact with the electrodes (20). A control unit (150) controls the operations of the tumble dryer; and an electric circuit (21, 22, 23) transmits a signal obtained from the electrodes (20) to the control unit (150). The electric circuit (21, 22, 23) has at least one electrical connector (22, 23) arranged in such a way to electrically connect the electrodes (20) to the control unit (150) when the filter assembly (1) is correctly positioned in the housing (105) and not to connect the electrodes (20) to the control unit (150) when the filter assembly (1) is not positioned or not correctly positioned in the housing (105).