A vacuum cleaner is provided. The vacuum cleaner may include a suction nozzle coupled to a body and adapted to move along a surface to be cleaned, a guide pipe to guide foreign substances including dust suctioned through in the suction nozzle, a separation member to separate the foreign substances including dust guided along the guide pipe from air according to a principle of cyclonic separation, a collection container to accommodate the foreign substances including dust separated in the separation member, a binder supply device connected to the guide pipe to supply a binder to the separation member, the binder being in a shape of solid granules, and a heat supply device to supply heat to the collection container. The binder may bind with the dust due to heat supplied from the heat supply device. Thus, a larger amount of foreign substances including dust may be accumulated in the collection container, and therefore, the collection container may be effectively used.

A vacuum cleaner is provided. The vacuum cleaner may include a suction nozzle coupled to a body and adapted to move along a surface to be cleaned, a guide pipe to guide foreign substances including dust suctioned through in the suction nozzle, a separation member to separate the foreign substances including dust guided along the guide pipe from air according to a principle of cyclonic separation, a collection container to accommodate the foreign substances including dust separated in the separation member, a binder supply device connected to the guide pipe to supply a binder to the separation member, the binder being in a shape of solid granules, and a heat supply device to supply heat to the collection container. The binder may bind with the dust due to heat supplied from the heat supply device. Thus, a larger amount of foreign substances including dust may be accumulated in the collection container, and therefore, the collection container may be effectively used.

A filtered vacuum cleaner system includes a vacuum cleaner, a vacuum filter device, including a collection box with a collection cavity, a lid, a filter air intake, a filter air exhaust, inlet and outlet pipes, a handle, and a filter unit; a vacuum connection hose, and a filter hose, and optionally a vacuum handle unit, such that the vacuum filter device attaches to an air intake of the vacuum cleaner, such that the vacuum filter device filters debris from air prior to the air entering the vacuum cleaner.

A robot cleaner includes a body; a driving unit; at least one sensor configured to detect an obstacle; a cleaning unit, the cleaning unit including a brush unit and a fan unit; a dust box to store dust inside of the dust box, the dust box being detachably mounted to the body; and a dust sensing unit including a light emitting unit to transmit light and a light receiving sensor to sense the light transmitted by the light emitting unit, the light emitting unit and the light receiving sensor being fixed on the body and outside of the dust box, and the light emitting unit being configured to transmit light through the inside of the dust box. The driving unit, the at least one sensor, the cleaning unit, the dust box, and the dust sensing unit are positioned on or in the body of the robot cleaner.

A debris monitoring system includes a receptacle, a first and a second emitter, and a first receiver. The receptacle defines an opening to receive debris into the receptacle. The first and second emitter are each arranged to emit a signal across at least a portion of the opening. The first receiver is proximate to the first emitter to receive reflections of the signal emitted by the first emitter, and the first receiver is disposed toward the opening to receive an unreflected portion of the signal emitted by the second emitter across at least a portion of the opening.

A vacuum cleaner may include a suction motor, a body defining a filter cavity, the filter cavity being fluidly coupled to the suction motor and configured to receive a filter, a filter cover removably coupled to the body, the filter cover extending over at least a portion of the filter cavity, and a release configured to transition between a releasing position and a retaining position to removably couple the filter cover to the body. The release may include a body release portion, at least a portion of the body release portion being rotatably coupled to the body and a cover release portion, at least a portion of the cover release portion being slidably coupled to the filter cover, wherein a rotational movement of the body release portion causes a corresponding linear movement in the cover release portion to transition the release between the releasing position and the retaining position.

A vacuum cleaner may include a suction motor, a body defining a filter cavity, the filter cavity being fluidly coupled to the suction motor and configured to receive a filter, a filter cover removably coupled to the body, the filter cover extending over at least a portion of the filter cavity, and a release configured to transition between a releasing position and a retaining position to removably couple the filter cover to the body. The release may include a body release portion, at least a portion of the body release portion being rotatably coupled to the body and a cover release portion, at least a portion of the cover release portion being slidably coupled to the filter cover, wherein a rotational movement of the body release portion causes a corresponding linear movement in the cover release portion to transition the release between the releasing position and the retaining position.

A vacuum cleaner, comprising a cleaner body; a dust cup coupled to the cleaner body, the dust cup including a dust cup body which at least partially forms a dust cup cavity and a dust cup outlet; the dust cup including a dust cup door configured to selectively open and close the dust cup outlet; and at least one of a releasably connectable connector assembly to hold the dust cup door in a closed position, the releasably connectable connector assembly comprising a first connector, the first connector comprising a first connector magnet, and/or a deformable debris obstructor located in the dust cup cavity upstream of the dust cup outlet and dust cup door, which extends transverse to a longitudinal axis of the dust cup cavity as to shield the dust cup door from debris in the dust cup cavity. A docking station is also disclosed.

The present disclosure relates to a cleaner system including: a cleaner; a cleaner station; and an imaginary plane including an imaginary suction flow path through line penetrating a suction flow path in a longitudinal direction and an imaginary suction motor axis defined by extending a rotation axis of a suction motor, in which when the cleaner is coupled to the cleaner station, the plane penetrates at least a part of the cleaner station, such that a center of gravity of the cleaner is disposed to pass through a space for maintaining balance of the station, and as a result, it is possible to stably support the cleaner and the station while preventing the cleaner and the station from falling down.

A cleaner includes: a main body that has an opening; a suction motor that is disposed in the main body and generates suction force; and a filter unit that includes an exhaust filter for filtering air discharged from the suction motor, the filter unit being inserted into the main body through the opening and being separated from the main body, wherein when the filter unit is combined with the main body, a portion of the filter unit protrudes out of the main body, and a portion of the exhaust filter is positioned inside the main body and the other portion of the exhaust filter is positioned outside the main body.