WO-2026095247-A1 - DISHWASHER AND METHOD FOR CONTROLLING WASHING COURSE OF DISHWASHER

WO2026095247A1WO 2026095247 A1WO2026095247 A1WO 2026095247A1WO-2026095247-A1

Abstract

The present invention relates to a dishwasher and a control method thereof, wherein, while the dishwasher is running, a washing course can be changed to a low-noise washing course or returned to the previous washing course in real time by a simple operation using a user terminal.

Inventors

LEE, SANG SOO

Assignees

엘지전자 주식회사

Dates

Publication Date: 20260507
Application Date: 20250619
Priority Date: 20241028

Claims (10)

Input section for receiving the washing course and low-noise setting time; A storage unit for storing washing-related parameters for a washing course; and A control unit that, when a washing course is input, selects parameters corresponding to the washing course from the storage unit and controls the execution of the washing course; is included. A dishwasher characterized by the above-described control unit changing parameters so that when a preset low-noise mode start time is reached during the progress of the washing course, the washing course switches to a low-noise mode washing course and operates.
In claim 1 A dishwasher characterized in that the washing course is divided into a standard mode and a low-noise mode, and each mode is configured to include at least one of a pre-wash cycle, a main wash cycle, a rinse cycle, a heat rinse cycle, and a drying cycle.
In claim 2 A dishwasher characterized in that, when the above-described control unit switches to a low-noise mode washing course, it switches to the beginning of each stroke of the low-noise mode corresponding to the stroke of the standard mode washing course performed immediately prior.
In claim 1 A dishwasher characterized in that the above parameters include at least one of the washing motor rotation speed and operating time and the heating temperature and operating time of the heating heater.
In claim 1 A dishwasher characterized by the above-described control unit changing parameters to switch to the standard mode washing course and operate when a preset low-noise mode end time is reached during the low-noise washing mode washing course.
In claim 5 A dishwasher characterized by the above-described control unit switching to the beginning of each stroke of the low-noise mode washing course that was performed immediately prior when the standard washing mode washing course is switched.
In claim 1 The above input unit is characterized by including a voice input unit for receiving a voice signal, a communication unit for receiving an input signal via a communication network from a user terminal or a management server, a remote receiver for receiving an input signal wirelessly from a remote controller, and a user interface unit for direct input by a user to the dishwasher.
In claim 7 A dishwasher characterized in that the control unit turns off the display and speaker functions while operating the low-noise mode washing course.
In claim 1 A dishwasher characterized by the above-described control unit reducing the speed of the washing motor for each stroke of the low-noise mode washing course compared to each stroke of the corresponding standard mode washing course, while increasing the washing time and setting the washing water temperature higher to maintain the same washing performance as the standard mode washing course.
In claim 7 A dishwasher characterized by the above-described control unit immediately switching the ongoing washing course mode when a washing course change command is input through the above-described input unit while the washing course is running.

Description

Dishwasher and dishwasher washing course control method The present invention relates to a dishwasher that operates by dividing it into a standard mode and a low-noise washing mode, wherein the dishwasher can automatically switch to the standard mode or the low-noise washing mode when a no-disturb time set by the user is reached or elapses during dishwashing. A dishwasher is a device that cleans dishes by removing food residue and grease stains left on dishes after a meal through the spraying of dishwashing water in which detergent is dissolved. Specifically, dishwashing water is sprayed at high pressure inside a tub, and the sprayed water comes into contact with the dishes, thereby cleaning away foreign substances such as food residue stuck to the surface of the dishes. The process of a dishwasher washing dishes does not simply end with the spraying of detergent-dissolved water, but is accomplished through several stages. The dishwasher can operate in the stages of pre-wash, main wash, rinse, heat rinse, and drying. However, since dishwashers generate noise during the aforementioned washing cycle due to the operation of the washing motor or the water pressure sprayed from the nozzle onto the dishes, existing dishwashers are managed by separately setting a low-noise mode that allows the dishwashing cycle to proceed while reducing the noise of the dishwasher. However, the above-mentioned low-noise mode had the disadvantage that it was executed only when the user instructed a mode change via the dishwasher or user terminal. In addition, at this time, the user had to go through the cumbersome process of moving to the kitchen area to change the dishwasher's washing course to low noise mode, stopping the washing operation, turning the power off and on again to set it to low noise mode. FIG. 1 is a schematic diagram showing the overall configuration of a home appliance control system according to an embodiment of the present invention. FIG. 2 is a block diagram schematically illustrating the internal configuration of a dishwasher according to one embodiment of the present invention. FIG. 3 is a block diagram schematically illustrating the internal configuration of a user terminal according to one embodiment of the present invention. FIG. 4 is a block diagram schematically illustrating the internal configuration of a management server according to one embodiment of the present invention. FIG. 5 is a perspective view showing the external shape of a dishwasher according to an embodiment of the present invention. FIG. 6 is a perspective view showing the door of a dishwasher in an open state according to an embodiment of the present invention. FIG. 7 is a flowchart showing the step-by-step operation sequence of a dishwasher according to an embodiment of the present invention. FIG. 8 is a configuration diagram showing the control unit and function block of a dishwasher according to an embodiment of the present invention. FIG. 9 is a diagram showing a basic conceptual diagram of a washing course change according to an embodiment of the present invention. FIG. 10 is an operation flowchart illustrating a method for controlling a cleaning course of a management server according to an embodiment of the present invention. FIG. 11 is a diagram showing an example of a change point for each unit stroke of a dishwasher according to an embodiment of the present invention. FIG. 12 is a diagram showing an operation flowchart to explain a washing course control method of a dishwasher according to an embodiment of the present invention. FIG. 13 is a diagram showing the level of noise reduction at the time of change for each stroke unit of a dishwasher according to an embodiment of the present invention. FIG. 14 is a diagram showing the noise of the standard mode washing course by stroke unit of a dishwasher according to an embodiment of the present invention. FIG. 15 is a diagram showing an example of noise reduction at the time of change of each stroke unit of a dishwasher according to an embodiment of the present invention. FIG. 16 is a diagram showing the logic for changes in dishwasher operation according to the arrival and elapsed of the no-disturb time in standard mode and low-noise mode according to an embodiment of the present invention. FIG. 17 is a diagram showing the logic for changing the washing mode according to a user's command during a unit stroke of a dishwasher in which a washing course is being performed in a standard mode or a low-noise mode according to an embodiment of the present invention. The aforementioned objectives, features, and advantages will be described in detail below with reference to the attached drawings, and accordingly, a person skilled in the art to which the present invention pertains will be able to easily implement the technical concept of the present invention. In describing the present invention, detailed descriptions of known technologies related to the present invention are omitted if it