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US 2026/0198749 A1Published application
Dishwasher and control method therefor
AssigneeLG Electronics Inc.
InventorsMinhyuk LEE, Sung Hun LEE, Daegyu KIM
Life of this patent
Estimating the term…
Abstract
The present invention relates to a dishwasher and a control method therefor, the dishwasher supplying, through a single tube, a detergent to a tub during forward rotational driving of a pump motor and supplying air to a detergent container during reverse rotational driving of the pump motor, thereby having a simplified structure, having improved assemblability, and enabling manufacturing costs to be reduced.
Claims15
A dishwasher comprising:
- a tub having a washing space defined therein;
- a detergent supply device including:
- a container having a detergent storage space defined therein for storing therein a detergent to be supplied to the washing space;
- and
- a detergent pump configured to supply the detergent stored in the container to the washing space;
- and
- a controller configured to drive the detergent pump,
- wherein the container includes:
- a ventilation hole for communicating the detergent storage space with an external space;
- and
- a membrane constructed to block the ventilation hole and to be deformable in response to change in an internal pressure of the detergent storage space,
- wherein the detergent pump includes a pump motor for generating a driving force to revolve a roller in a forward direction or a reverse direction,
- wherein the controller is configured to:
- drive the pump motor in the forward direction to supply a predetermined amount of detergent;
- and
- in response to that the supply of the predetermined amount of the detergent has been completed, drive the pump motor in the reverse direction to restore an internal pressure of the detergent storage space.
13 more elements
A method for controlling a dishwasher, wherein the dishwasher includes:
- a tub having a washing space defined therein;
- and
- a detergent supply device including:
- a container having a detergent storage space defined therein for storing therein a detergent to be supplied to the washing space;
- and
- a detergent pump configured to supply the detergent stored in the container to the washing space;
- and
- wherein the container includes:
- a ventilation hole for communicating the detergent storage space with an external space;
- and
- a membrane constructed to block the ventilation hole and to be deformable in response to change in an internal pressure of the detergent storage space,
- wherein the detergent pump includes a pump motor for generating a driving force to revolve a roller in a forward direction or a reverse direction,
- wherein the method comprises:
- driving the pump motor in the forward direction to supply a predetermined amount of detergent;
- and
- in response to that the supply of the predetermined amount of the detergent has been completed, driving the pump motor in the reverse direction to restore an internal pressure of the detergent storage space.
13 more elements
Dependencies are inferred from the claim text.