# US 2019/0170360 A1 · Cooking device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0170360 A1 - Document ID: US20190170360A1 - Status: Published application - Kind: A1 - Application number: 16/209,154 - Filed: 2018-12-04 - Published: 2019-06-06 - Earliest claimed: 2017-12-04 - Assignees: LG Electronics Inc. - Applicants: LG Electronics Inc. - Inventors: Yeonsik HA; Cheong Hwan YU; Jeongdong LEE - Web page: https://patentgrep.com/patent/US20190170360A1 ## CPC - F24C 7/082: {on ranges, e.g. control panels, illumination} - F24C 3/12: Arrangement or mounting of control or safety devices - F24C 7/08: Arrangement or mounting of control or safety devices - G05G 1/015: Arrangements for indicating the position of a controlling member (means for continuously detecting pedal position G05G1/38; means for detecting position through tactile feedback G05G5/03) - G05G 1/105: {comprising arrangements for illumination} - G05G 5/05: Means for returning or tending to return controlling members to an inoperative or neutral position, e.g. by providing return springs or resilient end-stops (G05G5/28 takes precedence) - H01H 19/025: {Light-emitting indicators} - H01H 19/14: Operating parts, e.g. turn knob - G05G 1/08: Controlling members for hand actuation by rotary movement, e.g. hand wheels - H01H 2219/062: Light conductor - F24C: DOMESTIC STOVES OR RANGES (exclusively for solid fuels F24B); DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION - G05G: CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY ("Bowden" or like mechanisms F16C1/10; gearings or mechanisms not peculiar to this purpose F16H; speed changing or reversing mechanisms for gearings conveying rotary motion F16H59/00 - F16H63/00) - H01H: ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES (contact cables H01B7/10; electrolytic self-interrupters H01G9/18; emergency protective circuit arrangements H02H; switching by electronic means without contact-making H03K17/00) ## Abstract The present disclosure relates to a cooking device which allows a user to quickly and easily set a cooking temperature and a cooking time. The cooking device includes a new type of control device configured to control a cooking process using the cooking device. The new type of control device, that is, a knob module includes a knob operated in a push-and-turn manner, a knob ring combined with the knob and operated in a click or holding manner, and a display unit integrally formed with the knob ring and capable of displaying a temperature, a heating power level, time, or other information set according to an operation of the knob or the knob ring. According to the present disclosure, an amount of heat energy supplied through the cooking device and a cooking time of the food may be quickly and easily adjusted. ## Claims ### Claim 1 A cooking device comprising: a heating module including a heating device for heating a container; a control unit which controls a heating operation of the heating device; and a knob module configured to set a heating power level of the heating module, a cooking temperature, or a cooking time, wherein the knob module includes: a knob to which the heating power level or the cooking temperature are assigned, the knob rotating in a first direction or a second direction, corresponding to each rotational position, and being setting to have preset intervals; a knob ring which moves in the first direction or the second direction and then returns to an initial position thereof to increase or decrease the cooking time as much as a preset adjustment unit; and a display unit formed at one side of the knob ring to display the heating power level, the cooking temperature or the cooking time. ### Claim 2 (depends on 1) The cooking device of claim 1, wherein when the knob ring is operated while the cooking time is not set, a cooking time setting mode is started. ### Claim 3 (depends on 1) The cooking device of claim 1, wherein when a user performs a click operation using the knob ring, the cooking time increases or decreases according to the number of instances of the click operation. ### Claim 4 (depends on 1) The cooking device of claim 1, wherein when a user performs a holding operation using the knob ring, the cooking time continuously increases or decreases until the holding operation is released. ### Claim 5 (depends on 1) The cooking device of claim 1, wherein when the cooking time is set, a countdown operation of the cooking time is performed, and when the countdown operation is completed, a countdown operation end notification operation is performed. ### Claim 6 (depends on 1) The cooking device of claim 1, wherein a displaying unit and an adjustment unit of the cooking time displayed on the display unit vary according to a length of the set cooking time. ### Claim 7 (depends on 1) The cooking device of claim 1, wherein when a user sets a preheating temperature using the knob module while a heating operation of the heating module is not started, the heating operation the heating module is performed until a temperature of the heating module reaches the preheating temperature. ### Claim 8 (depends on 7) The cooking device of claim 7, wherein when the temperature of the heating module reaches the preheating temperature, a preheating end notification operation using at least one of the display unit and a audio output unit is performed. ### Claim 9 (depends on 7) The cooking device of claim 7, wherein when the user sets the cooking temperature using the knob ring after the temperature of the heating module reaches the preheating temperature, the heating operation of the heating module is performed until a cooking time of the heating module reaches a preset target cooking time. ### Claim 10 (depends on 9) The cooking device of claim 9, wherein when the cooking time of the heating module reaches the target cooking time, a cooking end notification operation using at least one of the display unit and a audio output unit is performed audio output unit. ### Claim 11 (depends on 7) The cooking device of claim 7, wherein when the user does not set the cooking temperature until a preset waiting time passes after the temperature of the heating module reaches the preheating temperature, the heating operation of the heating module is performed on the basis of the preheating time until a cooking time of the heating module reaches a preset target cooking time. ### Claim 12 (depends on 7) The cooking device of claim 7, wherein when the user sets the preheating module to be lower than a current temperature of the heating module before the temperature of the heating module reaches the preheating temperature, the temperature of the heating module is regarded to have reached the preheating temperature.