Wet duster module for a cleaner

A wet duster module for a cleaner comprising:

• a module housing that defines at least one or more suction flow paths configured to carry air containing dust;
• a rotary cleaning unit disposed on a lower surface of the module housing, the rotary cleaning unit comprising (i) at least one or more rotating plates configured to couple to a duster and (ii) a driving motor configured to provide rotational force to the at least one or more rotating plates;
• and
• a water supply unit provided in the module housing and configured to supply water to the duster,
• wherein the water supply unit comprises:
• a water tank mounted on the module housing and configured to store water supplied to the rotary cleaning unit, and
• a water supply nozzle configured to discharge water from the water tank to the duster,
• wherein the water supply nozzle comprises a nozzle body that defines (i) a water supply path configured to carry water introduced from the water tank and (ii) a water outlet provided at an end of the water supply path and configured to discharge water to the duster,
• wherein the water supply path extends parallel to an axial direction of a rotation axis of the at least one or more rotating plates,
• wherein the nozzle body has an inclined surface that is disposed at the end of the water supply path, that is inclined with respect to the axial direction by a predetermined angle, and that defines the water outlet in an elliptical shape,
• wherein the water outlet has a first vertex and a second vertex in a long axis direction of the elliptical shape and provides a height difference along the axial direction between the first vertex and the second vertex
• wherein the nozzle body is configured to, based on operation of the water supply unit being stopped, guide waterdrops at the water outlet to fall along the inclined surface, and
• wherein the water supply nozzle further comprises a waterdrop guide wall extending along the axial direction from one end of the nozzle body to guide a flow of waterdrops formed on the water outlet away from the nozzle body.