# US 2013/0152974 A1 · Control method for a dishwasher > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0152974 A1 - Document ID: US20130152974A1 - Status: Published application - Kind: A1 - Application number: 13/719,669 - Filed: 2012-12-19 - Published: 2013-06-20 - Earliest claimed: 2011-12-19 - Inventors: Jongmin Lee; Taehee Lee - Web page: https://patentgrep.com/patent/US20130152974A1 ## CPC - A47L 15/0021: {Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery} - A47L 15/0034: {Drying phases, including dripping-off phases} - A47L 15/48: Drying arrangements - A47L 15/488: {Connections of the tub with the ambient air, e.g. air intake or venting arrangements} - A47L 2501/06: Water heaters - A47L 2501/11: Air heaters - A47L 2501/12: Air blowers - A47L: DOMESTIC WASHING OR CLEANING (brushes A46B; cleaning quantities of bottles or of other hollow articles of one kind B08B9/00; laundry D06F); SUCTION CLEANERS IN GENERAL (cleaning in general B08) ## Abstract A control method for a dishwasher is provided. The control method may include heating air in a tub after a main washing process of washing dishes in the tub, and discharging the air containing moisture in the tub to an outside, during the air-heating or at the same time as the air-heating, such that energy efficiency may be increased and a time required for a dish drying process may be shorten. ## Claims ### Claim 1 A control method for a dishwasher, comprising: heating air in a tub after a main washing process of washing dishes in the tub; and discharging the air containing moisture in the tub to an outside, during the heating of the air. ### Claim 2 (depends on 1) The control method according to claim 1, further comprising: heating washing water accommodated in a sump to increase a temperature of the dishes, after the main washing process and before the heating of the air. ### Claim 3 (depends on 2) The control method according to claim 2, wherein a first predetermined temperature of the dishes increased through the heating of the air is higher than a second predetermined temperature of the dishes increased in the heating of the washing water. ### Claim 4 (depends on 1) The control method according to claim 1, wherein the main washing process comprises: spraying washing water at a predetermined temperature onto the dishes at a high pressure. ### Claim 5 (depends on 4) The control method according to claim 4, further comprising a preliminary washing process, the preliminary washing process comprising: prior to the main washing process, spraying the washing water at the predetermined temperature dishes onto the dishes at a low pressure. ### Claim 6 (depends on 4) The control method according to claim 4, further comprising after the main washing process, rinsing the dishes. ### Claim 7 (depends on 6) The control method according to claim 6, wherein the heating of the air and the discharging of the air are performed after the rinsing of the dishes. ### Claim 8 (depends on 1) The control method according to claim 1, wherein the heating of the air comprises heating the air in the tub using at least one air heater. ### Claim 9 (depends on 7) The control method according to claim 7, wherein the at least one air heater is disposed in a location at which the dishes in the tub can be heated using heat radiation. ### Claim 10 A control method for a dishwasher, comprising: after heating washing water accommodated in a sump by a washing water heater, soaking slop attached to the dishes by spraying the heated washing water onto dishes in a tub, at a low pressure; thereafter, spraying the washing water onto the dishes having been soaked, at a high pressure; and thereafter, drying the dishes in the tub, wherein the drying of the dishes includes: heating air in the tub, and discharging the air containing moisture in the tub to an outside, after the heating of the air. ### Claim 11 (depends on 10) The control method according to claim 10, wherein the heating of the air increases a temperature of the dishes using at least one air heater installed in the tub. ### Claim 12 (depends on 11) The control method according to claim 11, wherein the heating of the air heats the air such that the temperature of the dishes is increased to a first predetermined temperature. ### Claim 13 (depends on 12) The control method according to claim 12, wherein the drying of the dishes further includes heating the washing water accommodated in the sump such that the temperature of the dishes is increased to a second predetermined temperature, after the main washing process and before the heating of the air. ### Claim 14 (depends on 13) The control method according to claim 13, wherein the first predetermined temperature is higher than the second set temperature. ### Claim 15 (depends on 11) The control method according to claim 11, wherein the at least one air heater is disposed in a location at which the dishes in the tub can be heated using heat radiation. ### Claim 16 (depends on 11) The control method according to claim 11, wherein a washing chamber that accommodates the dishes is provided inside of the tub, wherein an upper rack is installed on an upper side and a lower rack is installed on a lower side of the washing chamber, and wherein the at least one air heater includes: an upper air heater provided at an upper side of the upper rack; and a lower air heater provided at an upper side of the lower rack. ### Claim 17 (depends on 11) The control method according to claim 11, wherein the at least one air heater is disposed in a location in which a temperature of the dishes is increased to the first predetermined temperature, taking into consideration a caloric value and an air flow created by a driving fan in the tub. ### Claim 18 (depends on 10) The control method according to claim 10, wherein the discharging of the air discharges the air in the tub containing water vapor to the outside by driving an exhaust fan. ### Claim 19 A control method for a dishwasher, comprising: heating air in a tub after a main washing process of washing dishes in the tub using at least one air heater; and discharging the air containing moisture in the tub to an outside, during the heating of the air. ### Claim 20 (depends on 18) The control method according to claim 18, wherein the at least one air heater is disposed in a location at which the dishes in the tub can be heated using heat radiation. ### Claim 21 (depends on 19) The control method according to claim 19, wherein a washing chamber that accommodates the dishes is provided inside of the tub, wherein an upper rack is installed on an upper side and a lower rack is installed on a lower side of the washing chamber, and wherein the at least one air heater includes: an upper air heater provided at an upper side of the upper rack; and a lower air heater provided at an upper side of the lower rack.