Dosing of a solid detergent in a domestic dishwashing machine

A domestic dishwashing machine comprising:

• a dishwashing container;
• a door, mounted on the dishwashing container so as to be pivotable about a horizontal door pivot axis close to the floor, for closing a dishwashing chamber formed in the dishwashing container;
• and
• a dosing system, arranged at the door, for a solid detergent, wherein the dosing system comprises:
• a magazine for storing the solid detergent;
• a chute for conveying, by gravity, a portion of the solid detergent removed from the magazine to an outlet opening;
• a shut-off member which is arranged so as to be movable to and fro between a shut-off position and a freeing position and which, in the freeing position, frees the chute so that a portion of the solid detergent is able to fall through to the outlet opening and, in the shut-off position, shuts off the chute at a shut-off point located downwards of the beginning of the chute so that a portion of the solid detergent is unable to fall through to the outlet opening;
• an electrically controllable actuator for driving the shut-off member;
• and
• a control unit adapted to control the actuator such that, while a dishwashing program of the dishwashing machine is running, the shut-off member is in the shut-off position for most of the duration of the program but, on removal of a portion of the solid detergent from the magazine, the removed portion is allowed to fall freely in the chute from the beginning of the chute to the outlet opening.

A dosing system for a domestic dishwashing machine, comprising:

• a rotor arranged or able to be arranged in a magazine chamber so as to be rotatable about a rotor axis, wherein the rotor forms a plurality of storage compartments arranged distributed in the circumferential direction about the rotor axis, which storage compartments are each to receive a portion of a solid detergent;
• a chute for conveying, by gravity, a portion of the solid detergent removed from one of the storage compartments to an outlet opening;
• and
• a sensor system configured to detect the presence of a portion of the solid detergent in one of the storage compartments and, independently thereof, detect the presence of a portion of the solid detergent in the chute.

A tablet dosing system for installation in a domestic dishwashing machine, comprising:

• a magazine for the ordered storage of detergent tablets;
• a chute for the gravity-driven delivery of a detergent tablet extracted from the magazine to an outlet opening;
• a shut-off member arranged to be movable between a shut-off position and a freeing position and which, in the freeing position, frees the chute so that extracted detergent tablets are able to fall through to the outlet opening and, in the shut-off position, shuts off the chute so that detergent tablets are unable to fall through to the outlet opening;
• and
• a blower for generating a stream of blowing air, wherein the blower comprises an impeller seated in an impeller chamber and the impeller chamber is in blowing air supply connection with at least one of the chute and an extractor chamber accommodating a movably arranged extractor member for extracting a detergent tablet from the magazine and delivering the extracted detergent tablet into the chute.