WO2021137416A1 - Machine de cuisson et son procédé de commande - Google Patents

Machine de cuisson et son procédé de commande Download PDF

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Publication number
WO2021137416A1
WO2021137416A1 PCT/KR2020/015763 KR2020015763W WO2021137416A1 WO 2021137416 A1 WO2021137416 A1 WO 2021137416A1 KR 2020015763 W KR2020015763 W KR 2020015763W WO 2021137416 A1 WO2021137416 A1 WO 2021137416A1
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WO
WIPO (PCT)
Prior art keywords
cavity
temperature
cooking appliance
change
cooking
Prior art date
Application number
PCT/KR2020/015763
Other languages
English (en)
Korean (ko)
Inventor
김현상
김중수
박정현
이상원
김병규
김신겸
Original Assignee
삼성전자주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020200039293A external-priority patent/KR20210087386A/ko
Application filed by 삼성전자주식회사 filed Critical 삼성전자주식회사
Publication of WO2021137416A1 publication Critical patent/WO2021137416A1/fr
Priority to US17/854,080 priority Critical patent/US20220325894A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/12—Arrangement or mounting of control or safety devices
    • F24C3/122—Arrangement or mounting of control or safety devices on stoves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/12—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/32—Arrangements of ducts for hot gases, e.g. in or around baking ovens
    • F24C15/322—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/002—Stoves

Definitions

  • a cooking appliance is an appliance that cooks food by heating, and is largely divided into a method of generating heat for heating food using electricity and a method of generating heat for heating food by burning gas.
  • a cooking appliance includes a cavity for accommodating food, a burner for generating heat by burning gas and air, a gas supply passage for supplying gas to the burner, and an ignition device for generating a flame, It is a home appliance that cooks by heating it to high temperature
  • the cooking appliance since air is required for combustion to occur and combustion gas, which is a waste gas, is generated after combustion occurs, the cooking appliance has an air supply flow path for supplying air to the cavity and a method for discharging the waste gas of the cavity. An exhaust passage is further provided. In addition, the cooking appliance also includes an exhaust port for discharging waste gas.
  • an aspect of the disclosed invention is to improve the stability of product operation and secure user safety by stopping the operation of the cooking device by checking the situation in which the exhaust port is closed through sensing the temperature inside the cavity of the cooking device. do.
  • a cooking appliance includes: a body forming a cavity; a temperature sensor for sensing the temperature of the cavity; a burner heating the cavity by burning gaseous fuel; a control unit that identifies a change in the temperature change of the cavity based on the temperature sensed by the temperature sensor, and stops the operation of the burner based on that the change in the temperature change of the cavity is smaller than a reference value .
  • the controller may identify a change in the temperature change of the cavity based on a difference between the temperature change of the cavity at the first time and the temperature change of the cavity at the second time.
  • the control unit may stop the operation of the burner based on a change in the temperature change of the cavity during a first reference time is smaller than the reference value.
  • the controller may continue to operate the burner based on a change in the temperature change of the cavity during a second reference time equal to or greater than the reference value.
  • the operation of the cooking appliance includes preheating for preheating the cavity and cooking for cooking the food accommodated in the cavity, and the controller includes, when the temperature of the cavity detected by the temperature sensor before the start of the preheating is equal to or greater than a reference temperature
  • the cooking appliance may be controlled to start the cooking, and when the temperature of the cavity is less than the reference temperature, the cooking appliance may be controlled to start the preheating.
  • the cooking appliance may further include a convection fan, and the controller may operate the convection fan to circulate air inside the cavity based on a change in temperature of the cavity being smaller than a reference value.
  • the cooking appliance may further include a display, and the controller may control the display to display a message indicating an operation error of the cooking appliance based on a change in the temperature change of the cavity being smaller than a reference value.
  • a method for controlling a cooking appliance including a body forming a cavity and a burner heating the cavity by burning gas fuel, the method comprising: operating the burner; sensing the temperature of the cavity; identify a change in the temperature change of the cavity based on the sensed temperature; and stopping the operation of the burner based on a change in the temperature change of the cavity being smaller than a reference value.
  • Identifying the change in the temperature change in the cavity includes identifying the change in the temperature change in the cavity based on a difference between the temperature change in the cavity at a first time and the temperature change in the cavity at a second time.
  • Stopping the operation of the burner may include stopping the operation of the burner based on the fact that a change in temperature of the cavity during a first reference time is smaller than the reference value.
  • the control method may further include continuing the operation of the burner based on whether a change in the temperature change of the cavity during a second reference time is equal to or greater than the reference value.
  • the operation of the cooking appliance further includes pre-heating for preheating the cavity and cooking for cooking food accommodated in the cavity, and the control method includes cooking if the temperature of the cavity is equal to or greater than a first reference temperature before the pre-heating starts.
  • the method may further include initiating the preheating when the temperature of the cavity is less than the reference temperature.
  • the control method may further include operating a convection fan to circulate air inside the cavity based on a change in the temperature change of the cavity being smaller than a reference value.
  • the control method may further include controlling the display to display a message indicating an operation error of the cooking appliance based on a change in the temperature change of the cavity being smaller than a reference value.
  • a cooking appliance includes: a body forming a cavity; a temperature sensor for sensing the temperature of the cavity; a burner heating the cavity by burning gaseous fuel; and a control unit stopping the operation of the burner when the temperature of the cavity sensed by the temperature sensor is less than the predetermined temperature after a predetermined time has elapsed from the start of the operation of the cooking appliance.
  • the operation of the cooking appliance includes preheating for preheating the cavity and cooking for cooking the food accommodated in the cavity, and the controller includes a first reference in which the temperature of the cavity detected by the temperature sensor before starting the preheating is predetermined. If the temperature is higher than or equal to the temperature, the cooking appliance may be controlled to start the cooking, and if the temperature is lower than the predetermined first reference temperature, the cooking appliance may be controlled to start the preheating mode.
  • the controller may stop the operation of the burner when the temperature of the cavity sensed by the temperature sensor is less than the second reference temperature after a first predetermined reference time has elapsed from the start of the preheating of the cooking appliance.
  • the controller is configured to control the cooking appliance to continue cooking when the temperature of the cavity sensed by the temperature sensor is equal to or greater than a third preset reference temperature after a second predetermined time has elapsed from the start of the cooking of the cooking appliance.
  • the controller may stop the operation of the burner when the temperature of the cavity sensed by the temperature sensor is less than the third reference temperature after a second predetermined time has elapsed from the start of the cooking of the cooking appliance.
  • the cooking appliance further includes a convection fan, and when the temperature of the cavity is less than the preset temperature after a predetermined time has elapsed from the start of the operation of the cooking appliance, the controller controls the convection fan to circulate the air inside the cavity. can be operated
  • the disclosed invention it is possible to improve the stability of operation of a product by checking a situation in which the exhaust port is closed through sensing the temperature inside the cavity of the cooking device and stopping the operation of the cooking device.
  • FIG. 1 illustrates an exterior of a cooking appliance according to an exemplary embodiment.
  • FIG. 2 is a view showing the inside of the cooking appliance according to an embodiment.
  • FIG. 3 is a control block diagram of a cooking appliance according to an exemplary embodiment.
  • FIG. 4 illustrates that the exhaust port of the cooking appliance is closed according to an exemplary embodiment.
  • FIG. 5 is a flowchart illustrating a control flow in preheating of a cooking appliance according to an exemplary embodiment.
  • FIG. 6 is a flowchart illustrating a control flow in cooking of a cooking appliance according to an exemplary embodiment.
  • FIG. 7 to 9 are views illustrating a temperature change of a cavity of a cooking appliance according to an exemplary embodiment.
  • FIG. 10 is a diagram illustrating a display of a warning message regarding abnormal operation of the cooking appliance according to an exemplary embodiment.
  • FIG. 11 is a diagram illustrating that a warning message regarding abnormal operation of a cooking appliance is displayed on a user terminal according to an exemplary embodiment.
  • FIG. 12 is a flowchart illustrating a control flow in cooking of a cooking appliance according to an exemplary embodiment.
  • FIG. 13 is a diagram illustrating a cavity temperature of a cooking appliance according to an exemplary embodiment.
  • FIG. 14 is a diagram illustrating a change in a cavity temperature of a cooking appliance according to an exemplary embodiment.
  • 15 is a flowchart illustrating a control flow in cooking of a cooking appliance according to an exemplary embodiment.
  • 16 is a diagram illustrating a change in a temperature change in a cavity of a cooking appliance according to an exemplary embodiment.
  • the identification code is used for convenience of description, and the identification code does not describe the order of each step, and each step may be performed differently from the specified order unless the specific order is clearly stated in the context. have.
  • FIG. 1 shows an exterior of a gas oven according to an embodiment
  • FIG. 2 shows an inside of the gas oven according to an embodiment
  • 3 is a control block diagram of a gas oven according to an embodiment
  • 4 is a view showing that the exhaust port of the gas oven is closed according to an embodiment.
  • a cooking appliance 1 includes a main body of an oven 2 accommodating various components therein and a cooktop 10 for heating a cooking container containing food. ) may be included.
  • the cooktop 10 may be located at an upper portion of the cooking appliance 1
  • an oven 2 may be located at a lower portion thereof.
  • a cavity (not shown) may be formed in the oven 2 .
  • Food may be accommodated in the cavity.
  • the cooking device 1 is illustrated as including the cooktop 10 and the oven 2 .
  • the cooking device 1 may include only the oven 2 . That is, in the cooking appliance 1, the cooktop 10 may be omitted.
  • the cooking appliance 1 may be provided as a built-in or non-built-in type.
  • the cooktop 10 may include a gas burner device 100 for heating food.
  • the gas burner device 100 may use gas as an energy source.
  • the gas burner device 100 may generate thermal power by burning gas.
  • the cooktop 10 is illustrated as including five gas burner devices 100 , but the number of gas burner devices 100 is not limited thereto.
  • the cooktop 10 may include a support plate 11 .
  • the support plate 11 may form an upper surface of the cooking appliance 1 .
  • the gas burner device 100 may be mounted on the support plate 11 .
  • the container support member 12 may be disposed on the upper portion of the support plate 11 .
  • the container support member 12 may be provided to place a cooking container (not shown) on it.
  • the container support member 12 may be provided detachably from the support plate 11 .
  • the container support member 12 may be located above the gas burner device 100 .
  • the container support member 12 may be provided in plurality.
  • An oven 2 may be provided under the cooktop 10 .
  • a plurality of racks (not shown) may be provided inside the oven 2 , and a tray (not shown) may be mounted on each rack. Food to be cooked may be accommodated in the tray.
  • the oven 2 may include a door 2a for selectively opening or closing the front side of the cavity 40 .
  • the door 2a may include a see-through part 2b made of a transparent or translucent material so that the cooking state of the food accommodated in the cavity 40 can be visually checked.
  • the see-through portion 2b may be provided with multiple glass layers. Multiple glass layers may be spaced apart to allow air for cooling to pass therethrough.
  • a knob 3 may be provided on the front upper portion of the cooking appliance 1 .
  • the knob 3 may be provided for setting functions of the cooktop 10 and/or the oven 2 .
  • the knob 3 may be provided to operate each gas burner device 100 .
  • the user can set on/off, set temperature, set time, and the like.
  • the number of knobs 3 may be provided to correspond to the number of gas burner devices 100 .
  • Each knob 3 can independently control each gas burner device 100 .
  • a user interface 5 may be provided next to the knob 3 on the front upper portion of the cooking appliance 1 , and the user interface 5 includes a plurality of input buttons 5a for receiving control commands from the user, the cooking appliance It may include a display 5b for displaying the operation information of (1).
  • a cavity 40 for accommodating food is formed inside the body 1a.
  • the cavity 40 is formed in a substantially box shape by an upper wall 31 , a lower wall 32 , a left wall 33 , a right wall 34 and a rear wall 35 , and the front side is open for putting in and out of food.
  • a door 20 coupled to the main body 1a rotatably in the vertical direction is provided on the open front surface of the cavity 40 , and the cavity 40 may be opened and closed by the door 20 .
  • the door 20 may be provided with a handle 2c so that a user can easily open and close the door 20 .
  • a plurality of supports 36 capable of mounting a rack (not shown) on which food can be placed is provided in the cavity 40 , and the plurality of supports 36 are provided on the left wall 33 . ) and the right wall 34 is formed to protrude.
  • the cavity 40 may be partitioned by a divider 43 .
  • the divider 43 may be detachably mounted inside the cavity 40 , and the cavity 40 may be divided vertically or horizontally.
  • the divider 43 is mounted in parallel with the upper wall 31 and the lower wall 32 of the cavity 40 , so that the cavity 40 is connected to the upper first cavity 41 . ) and the lower second cavity 42 .
  • the divider 43 may be made of a heat insulating material, and the first cavity 41 and the second cavity 42 may be insulated by the divider 43 .
  • the sizes of the first cavity 41 and the second cavity 42 divided by the divider 43 do not have to be the same, and the sizes of the first cavity and the second cavity 42 may be different from each other. have.
  • the cooking appliance 1 may include various components.
  • the cooking appliance 1 has a plurality of burners 61 and 62 for heating the cavity 40 by burning gas fuel, and for purifying the air in the cavity 40 .
  • the plurality of burners 60 : 61 and 62 may include a first burner 61 provided above the cavity 40 and a second burner 62 provided below the cavity 40 . Specifically, when the cavity 40 is divided into an upper first cavity 41 and a lower second cavity 42 by the divider 43 , the first burner 61 is disposed in the first cavity 41 . and the second burner 62 may be located in the second cavity.
  • the first burner 61 is a first pipe burner 61b generating a flame for heating the food accommodated in the cavity 40, and a first burner valve controlling gas fuel supplied to the first pipe burner 61b. (61a) may be included.
  • the first pipe burner 61b may extend forward from the rear surface of the cavity 40, and a plurality of gas outlet holes through which gas fuel is discharged to generate a flame may be provided on the side surface of the first pipe burner 61b. have.
  • the first burner valve 61a may be provided on a first gas supply pipe (not shown) that supplies gas fuel from an external gas supply source (not shown) to the first pipe burner 61b to open and close the first gas supply pipe.
  • the first burner valve 61a may be a bimetal valve, a solenoid valve, or the like.
  • the first burner 61 may heat the food accommodated in the first cavity 41 . .
  • the first burner 61 may be provided to be exposed on the upper portion of the cavity 40 .
  • the first burner 61 can directly heat the food accommodated in the cavity 40 as shown in FIG. 2 .
  • the food may be directly heated by radiant heat generated by the flame of the first burner 61 .
  • the second burner 62 includes a second pipe burner 62b that generates a flame for heating the cavity 40, and a second burner valve 62a that regulates the gas fuel supplied to the second pipe burner 62b.
  • a second pipe burner 62b that generates a flame for heating the cavity 40
  • a second burner valve 62a that regulates the gas fuel supplied to the second pipe burner 62b.
  • the second pipe burner 62b may extend forward from the rear surface of the cavity 40, and a plurality of gas outlet holes through which gas fuel flows to generate a flame may be provided on a side surface of the second pipe burner 62b. have.
  • the second burner valve 62a may be provided on a second gas supply pipe (not shown) that supplies gas fuel from an external gas supply source (not shown) to the second pipe burner 62b to open and close the second gas supply pipe.
  • the second burner valve 62a may employ a bimetal valve, a solenoid valve, or the like.
  • the second burner 62 may heat the food accommodated in the second cavity 42 . .
  • the second burner 62 may be provided under the lower wall 32 of the cavity 40 .
  • the second burner 62 may indirectly heat the food accommodated in the cavity 40 as shown in FIG. 2 .
  • the air heated by the second burner 62 is supplied into the cavity 40 through the heating hole 32a of the lower wall 32, and the food is heated in the air inside the cavity 40. cooked by
  • the plurality of convection units 51 and 52 are provided on the rear surface of the cavity 40, and include a first convection unit 51 provided on the upper side of the rear surface and a second convection unit 52 provided on the lower side of the rear surface.
  • the first convection unit 51 is the first cavity 41 .
  • Located in the second convection unit 52 may be provided in the second cavity.
  • the first convection unit 51 includes a first convection fan 51b that circulates air inside the cavity 40, a first auxiliary heater 51a that auxiliaryly heats the inside of the cavity 40, and a first convection fan 51b ) and a first convection housing 51c accommodating the first auxiliary heater 51a.
  • the first convection fan 51b rotates by receiving rotational force from the first convection fan motor, and circulates air inside the cavity 40 .
  • the first convection fan 51b provided on the rear surface of the cavity 40 discharges air toward the front of the cavity 40 .
  • the air discharged toward the front of the cavity 40 by the first convection fan 51b circulates inside the cavity 40 and then returns to the first convection fan 51b.
  • the inside of the cavity 40 may have a uniform temperature distribution.
  • the first auxiliary heater 51a heats the air discharged by the first convection fan 51b. Specifically, the air heated by the first auxiliary heater 51a is discharged into the cavity 40 by the first convection fan 51b.
  • the first auxiliary heater 51a radiates less heat than the first burner 61 and the second burner 62 . Accordingly, the first auxiliary heater 51a may be used to assist the first burner 61 and the second burner 62 .
  • the second convection unit 52 also includes a second convection fan 52b that circulates air inside the cavity 40, a second auxiliary heater 52a that auxiliaryly heats the inside of the cavity 40, and a second convection fan 52b ) and a second convection housing 51c accommodating the second auxiliary heater 52a.
  • the second convection fan 52b rotates by receiving rotational force from the second convection fan motor, circulates air inside the cavity 40, and the second auxiliary heater 52a is discharged by the second convection fan 52b. heat the air
  • the second auxiliary heater 52a emits less heat than the first burner 61 and the second burner 62 , and the second auxiliary heater 52a heats the first burner 61 and the second burner 62 . It can be used for auxiliary purposes.
  • a supply port (not shown) for supplying air for combustion of the second burner 62 is provided on the lower wall 32 .
  • the auxiliary air supply unit 105 may supply air for combustion of the first burner 61 .
  • air containing oxygen is required to burn fuel. If air containing oxygen is not supplied, the flame that burns the fuel is immediately extinguished.
  • the first burner 61 and the second burner 62 heat the cavity 40 by burning gaseous fuel.
  • the burned gas moves from the bottom to the top, it is common to provide an air inlet for supplying air in the lower part of the cavity 40 .
  • the second burner 62 may receive fresh air from an air inlet (not shown) formed in the lower portion of the cavity 40 . That is, a separate air supply device for supplying air to the second burner 62 is not required.
  • the first burner 61 since it is difficult for the first burner 61 to receive air from an air inlet (not shown) formed in the lower portion of the cavity 40 , a separate air supply device for supplying fresh air to the first burner 61 is required. do. Furthermore, when the cavity 40 is separated into the first cavity 41 and the second cavity 42 by the divider 43, the first cavity 41 is not formed with an air supply port, so the first burner 61 An air supply device is required to supply fresh air to the
  • the combustion waste gas generated by the second burner 62 provided in the lower portion of the cavity 40 interferes with the combustion of the first burner 61 , so the first burner 61 .
  • An air supply device is required to supply fresh air to the
  • the waste gas refers to combustion gas generated after combustion. When the gas is completely combusted, carbon monoxide and water vapor are generated, and when the gas is incompletely combusted, carbon monoxide, hydrogen, sulfur, etc. may be generated. Incomplete combustion may occur in the first burner 61 by the waste gas of the second burner 62 .
  • the auxiliary air supply unit 105 may be provided on the upper side of the rear surface 35 of the cavity 40 in order to supply fresh air to the first burner 61 .
  • an exhaust port 90 is provided on the upper wall 31 side to lead to the outside of the cooking appliance 1 and guide the waste gas of the cavity 40 to the outside of the cooking appliance 1 .
  • the exhaust port 90 may discharge the waste gas of the first cavity 41 .
  • an auxiliary exhaust port 91 for guiding the waste gas of the second cavity 42 to the outside of the cooking appliance 1 is provided on the rear wall 35 .
  • an auxiliary exhaust port 91 for discharging the waste gas of the second cavity 42 is provided at a position corresponding to the second cavity 42 .
  • the user interface 5 may be provided next to the knob 3 at the upper front of the cooking appliance 1 , and displays a plurality of input buttons 5a for receiving control commands from the user, and operation information of the cooking appliance 1 . It may include a display (5b).
  • the input button 5a may receive a setting value related to the operation of the cooking appliance 1 from the user or may receive various control commands.
  • the user sets a cooking time, changes a cooking temperature, selects a cavity (eg, a first cavity or a second cavity), or a cooking method (eg, You can choose to bake or broil).
  • the input button 5a is a broil button (not shown) for inputting a broil cooking command of the first cavity 41 and a bake button (not shown) for inputting a bake cooking command of the first cavity 41 . time), a bake button (not shown) for inputting a bake heating command of the second cavity 42 may be included.
  • the user may receive a preset temperature of preheating for preheating the cavity 40 by the cooking appliance 1 through the input button 5a, and a set temperature of cooking for cooking food accommodated in the cavity 40 . can be input.
  • the input button 5a transmits an electrical signal corresponding to a set value or a control command input by the user to the control unit 200 .
  • Such an input button 5a employs a push switch, a toggle switch, a sliding switch, a membrane switch, a touch switch, or a dial. can do.
  • the display 5b may display various operation information related to the operation of the cooking appliance 1 to the user according to the control signal of the controller 200 .
  • the display 5b may display a cooking temperature or a cooking method selected by a user, or display a current temperature of the cavity 40 .
  • the display 5b may display a warning message regarding abnormal operation of the cooking appliance 1 .
  • the display 5b may include a light emitting diode (LED) panel, an organic light emitting diode (OLED) panel, or a liquid crystal display panel.
  • LED light emitting diode
  • OLED organic light emitting diode
  • the display 5b may employ a touch screen including a touch pad for sensing a user's touch.
  • the touch screen may display a setting value or a setting command that a user can select, and may receive a setting value or a control command according to a user's touch input.
  • the temperature sensor 80 may include a first temperature sensor 81 provided above the cavity 40 and a second temperature sensor 82 provided below the cavity 40 . Specifically, when the cavity 40 is divided into an upper first cavity 41 and a lower second cavity 42 by the divider 43 , the first temperature sensor 81 is the first cavity 41 . , and the second temperature sensor 82 detects the temperature of the second cavity 42 .
  • the first temperature sensor 81 and the second temperature sensor 82 may include a thermistor whose electrical resistance changes according to temperature.
  • the first temperature sensor 81 and the second temperature sensor 82 including the thermistor may output an electrical signal corresponding to the temperature of the cavity 40 .
  • the first temperature sensor 81 when the divider 43 is mounted, the first temperature sensor 81 outputs a first temperature detection signal corresponding to the temperature of the first cavity 41 to the controller 200 and the second temperature sensor ( 82 may output a second temperature sensing signal corresponding to the temperature of the second cavity 42 to the controller 200 .
  • the first temperature sensor 81 and the second temperature sensor 82 transmit a first temperature detection signal and a second temperature detection signal corresponding to the temperature of the cavity 40 to the control unit ( 200) can be printed.
  • the cooking appliance 1 transmits the control unit 200 which oversees the control related to the operation of the cooking appliance 1 , the data related to the operation of the cooking appliance 1 to an external device, and the cooking appliance ( 1) a communication unit 300 that communicates with an external device, a notification unit 400 that transmits a warning sound for abnormal operation of the cooking appliance 1, and stores a program and data for controlling the cooking appliance 1 It may include a memory 220 .
  • the control unit 200 includes a memory 220 that stores/stores programs and data, and a processor 210 that processes data according to the programs and data stored in the memory 220 .
  • the processor 210 processes a control command, first and second temperature sensing signals, etc. according to the control program stored in the memory 220 , and the first burner 61 , the second burner 62 , and the first convection unit (51), output a control signal for controlling the second convection unit (52) and the auxiliary air supply unit (105).
  • the processor 210 processes the user's control command and according to the first temperature sensing signal, the first burner 61, the first A control signal for controlling the convection unit 51 and the auxiliary air supply unit 105 may be output.
  • a control signal for operating the first burner 61 , the first convection unit 51 and the auxiliary air supply unit 105 is output, and the first cavity 41 ) may output a control signal for stopping the first burner 61 , the first convection unit 51 , and the auxiliary air supply unit 105 when the temperature of the cooking temperature is higher than the cooking temperature.
  • the memory 220 stores a control program and control data for controlling the cooking appliance 1 , a control command input through a user interface, and a control command input from the first temperature sensor 81 and the second temperature sensor 82 .
  • the first temperature detection signal, the second temperature detection signal, and a control signal output by the processor 210 may be stored.
  • the memory 220 includes a volatile memory (not shown) such as Static Random Access Memory (S-RAM), Dynamic Random Access Memory (D-RAM), flash memory, ROM (Read Only Memory), It may include a non-volatile memory (not shown) such as an Erasable Programmable Read Only Memory (EPROM) and an Electrically Erasable Programmable Read Only Memory (EEPROM).
  • a volatile memory such as Static Random Access Memory (S-RAM), Dynamic Random Access Memory (D-RAM), flash memory, ROM (Read Only Memory), It may include a non-volatile memory (not shown) such as an Erasable Programmable Read Only Memory (EPROM) and an Electrically Erasable Programmable Read Only Memory (EEPROM).
  • the non-volatile memory may operate as an auxiliary storage device of the volatile memory, and may store a control program and control data for controlling the operation of the cooking appliance 1 .
  • the non-volatile memory may maintain stored data even when the power of the cooking appliance 1 is cut off.
  • the volatile memory temporarily stores a control program and control data by loading it from a non-volatile memory, or a control command input through a user interface, and a first temperature input from the first temperature sensor 81 and the second temperature sensor 82 .
  • the detection signal and the second temperature detection signal, the control signal output from the processor 210 , operation information of the first burner 61 and the second burner 62 , and the like may be temporarily stored.
  • the volatile memory may lose stored data when the power of the cooking appliance 1 is cut off.
  • processor 210 and the memory 220 have been separately described, but the present invention is not limited thereto, and the processor 210 and the memory 220 may be configured as a single chip.
  • the controller 200 may control the operations of various components included in the cooking appliance 1 .
  • the operation of the cooking appliance 1 to be described below may be interpreted as a control operation of the controller 200 .
  • the exhaust port 90 is provided on the upper wall 31 side of the cooking appliance 1 , and the exhaust port 90 is formed to lead to the outside of the cooking appliance 1 , and The waste gas is discharged to the outside of the cooking appliance (1).
  • the air for combustion cannot be supplied into the cooking appliance 1 , but the gas is supplied, so that the unburned gas is filled in the cooking appliance 1 .
  • FIG. 4 illustrates a case in which the entire exhaust port 90 of the cooking appliance 1 is closed, the waste gas is not smoothly discharged to the outside of the cooking appliance 1 even when a part of the exhaust port 90 is closed. If not, the unburned gas is filled in the cooking appliance 1 as well.
  • the exhaust port 90 of the cooking appliance 1 when the exhaust port 90 of the cooking appliance 1 is closed to generate unburned gas and fill the inside of the cooking appliance 1, the cavity 40 ), it is possible to check the closed condition of the exhaust port 90 and stop the operation of the cooking appliance 1 through the detection of the internal temperature.
  • FIG. 5 is a flowchart illustrating a control flow in preheating of the cooking appliance according to an embodiment
  • FIG. 6 is a flowchart illustrating a control flow in cooking of the cooking appliance according to an embodiment
  • 7 to 9 are views illustrating a temperature change of a cavity of a cooking appliance according to an exemplary embodiment.
  • FIG. 10 illustrates displaying a warning message regarding abnormal operation of the cooking appliance according to an embodiment
  • FIG. 11 illustrates displaying a warning message about operation abnormality of the cooking appliance on a user terminal according to an embodiment did it
  • the temperature sensor 80 detects the temperature of the cavity 40. can (1000).
  • the first temperature sensor 81 outputs a first temperature detection signal corresponding to the temperature of the first cavity 41 to the control unit 200
  • the second temperature sensor 82 outputs the second cavity 42
  • the first temperature sensor 81 and the second temperature sensor 82 transmit a first temperature detection signal and a second temperature detection signal corresponding to the temperature of the cavity 40 to the control unit ( 200) can be printed.
  • the operation and control method of the cooking appliance 1 described below may be equally applied to the first cavity 41 and the second cavity 42 when the divider 43 is mounted. That is, when the divider 43 is mounted, the controller 200 controls the temperature of the first cavity 41 detected by the first temperature sensor 81 and the second cavity 42 detected by the second temperature sensor 82 . ), it is possible to determine the generation of unburned gas due to the closing of the exhaust port 90 based on the temperature of each and stop the operation of the cooking appliance 1 .
  • control unit 200 controls the exhaust port 90 based on the temperature of the cavity 40 sensed by the first temperature sensor 81 and the second temperature sensor 82 due to closure. It is possible to determine the generation of unburned gas and stop the operation of the cooking appliance 1 .
  • the controller 200 may determine whether the temperature of the cavity 40 sensed by the temperature sensor 80 is equal to or greater than a first reference temperature ( S1010 ).
  • the first reference temperature may be a preset temperature input by the user through the input button 5a in advance, or may be temperature data stored in advance in the memory 220 .
  • the cooking appliance 1 Before the control method of the cooking appliance 1 according to an exemplary embodiment is performed, the cooking appliance 1 may be already in operation, have completed preheating, or have cooked food. That is, when the currently sensed temperature of the cavity 40 of the cooking appliance 1 is equal to or greater than a predetermined temperature value, the controller 200 determines that the cooking appliance 1 has already been preheated or that food has been cooked. can Accordingly, the controller 200 may determine that the cooking appliance 1 is operating normally.
  • the notification unit 400 may output a notification indicating that cooking can be started. That is, if the currently sensed temperature of the cavity 40 of the cooking appliance 1 is equal to or greater than the first reference temperature, the notification unit 400 may output a notification indicating completion of preheating, and the user may hear the notification sound and the cooking appliance ( A control command for starting the cooking of 1) may be input.
  • control unit 200 controls the cooking appliance 1 to start heating (1060) for cooking, and if the temperature of the cavity 40 is less than the first reference temperature, The cooking appliance 1 may be controlled to start heating for preheating ( 1020 ).
  • the controller 200 starts preheating before the cooking appliance 1 starts cooking the food, so that the first reference time t1 is During the process, the cavity 40 may be controlled to preheat to a predetermined temperature.
  • the control unit 200 determines whether a first reference time t1 has elapsed from the start of heating for preheating of the cooking appliance 1 ( 1030 ), and the temperature sensor 80 determines when the first reference time t1 has elapsed. It is possible to sense the temperature of the cavity 40 (1040).
  • the controller 200 may determine whether the temperature of the cavity 40 sensed by the temperature sensor 80 is equal to or greater than the second reference temperature ( S1050 ).
  • the second reference temperature may be a preset temperature input by the user through the input button 5a in advance, or may be temperature data stored in advance in the memory 220 .
  • control unit 200 may determine whether the temperature of the cavity 40 is higher than or equal to a preset temperature for a predetermined time by preheating the cooking appliance 1 .
  • the first preheating first During the reference time t1 , the temperature of the cavity 40 rises above the second reference temperature.
  • the controller 200 determines that there is no problem in the combustion process of the cooking appliance 1, and the cooking appliance 1 starts heating for cooking (1060). can be controlled.
  • the notification unit 400 may output a notification indicating that cooking can be started. That is, if the currently sensed temperature of the cavity 40 of the cooking appliance 1 is equal to or greater than the second reference temperature, the notification unit 400 may output a notification indicating completion of preheating, and the user may hear the notification sound and the cooking appliance ( A control command for starting the cooking of 1) may be input.
  • the temperature of the cavity 40 sensed by the temperature sensor 80 is less than the second reference temperature.
  • the notification unit 400 does not output a notification indicating the completion of preheating, and a warning sound notifying that a problem has occurred in the combustion process of the cooking appliance 1 is generated by the notification unit ( 400) can be output.
  • the control unit 200 controls the combustion process of the cooking appliance 1, such as non-combustion due to the closing of the exhaust port 90 . may be determined to have occurred and the operation of the cooking appliance 1 may be stopped.
  • the controller 200 may control the operation of the burner 60 to be stopped ( S1051 ). That is, by controlling the first burner valve 61a and the second burner valve 62a included in the first burner 61 and the second burner 62, respectively, to cut off the gas supply, It can be controlled so that the combustion gas is not filled.
  • the controller 200 may control the convection fan 50b to rotate for a predetermined first cycle time ( 1052 ). That is, the control unit 200 circulates the air inside the cavity 40 by controlling each of the first convection fan 51b and the second convection fan 52b to rotate for a predetermined time, and the inner beauty of the cavity 40 The combustion gas may be discharged to the outside of the cooking appliance 1 .
  • the controller 200 may control the first convection fan 51b and the second convection fan 52b to rotate for a predetermined time, for example, by rotating for 5 to 20 seconds, the air inside the cavity 40 It can circulate and discharge unburned gas.
  • the controller 200 may control the door 2a of the cooking appliance 1 to be locked for a predetermined first locking time ( 1053 ). That is, as described above, when the user opens the door 2a in a state in which the unburned gas is filled in the cooking appliance 1, air is introduced into the cooking appliance 1 and the unburned gas is burned to cause a flame. Since it is discharged to the outside of the cooking appliance 1, the control unit 200 controls the door 2a to be locked for a certain period of time until the unburned gas inside the cooking appliance 1 is discharged to the outside or disappears to secure the user's safety. can do.
  • control unit 200 may control the notification unit 400 to transmit a warning sound for the occurrence of a problem in the combustion process of the cooking appliance 1 , such as non-combustion due to the closing of the exhaust port 90 ( 1054 ).
  • the notification unit 400 may be implemented in the form of a speaker that outputs a voice signal or a sound signal, and may output a warning message regarding abnormal operation of the cooking appliance 1 as a predetermined sound signal such as a voice or a warning sound.
  • the notification unit 400 may output such a warning message once or may output it several times according to a predetermined setting.
  • the controller 200 may control the display 5b to display a warning message about a problem occurring in the combustion process of the cooking appliance 1 such as non-combustion due to the closing of the exhaust port 90 ( 1054 ).
  • a message regarding abnormal operation of the cooking appliance 1 may be displayed on the display 5b, and the user may be prompted to close the current exhaust port 90 through the message displayed on the display 5b. As a result, it can be confirmed that the cooking appliance 1 is not burned and the operation is stopped.
  • control unit 200 controls the communication unit 300 to transmit at least one data of a warning sound or a warning message about a problem occurring in the combustion process of the cooking appliance 1, such as non-combustion due to the closing of the exhaust port 90 , to the user. It can transmit to the terminal 600 (1055).
  • the communication unit 300 may communicate with the user terminal 600 capable of communicating with the cooking appliance 1 . If the user terminal 600 is a device capable of communicating with the cooking appliance 1, such as a smart phone, a tablet, a PC, and a device dedicated to the cooking appliance 1 provided for the purpose of controlling the cooking appliance 1, the type thereof is limited. none.
  • the communication unit 300 may be implemented using a communication chip, an antenna, and related components to access at least one of a wired communication network and a wireless communication network. That is, the communication unit 300 may be implemented with various types of communication modules capable of short-distance communication or long-distance communication with the user terminal 600 .
  • the user terminal 600 On the basis of the data received from the cooking appliance 1 through the communication unit 300 , the user terminal 600 provides information about a problem occurring in the combustion process of the cooking appliance 1 , such as non-combustion due to the closure of the exhaust port 90 . It is possible to output a predetermined sound signal such as a voice or a warning sound.
  • the user terminal 600 may display a warning message about a problem occurring in the combustion process of the cooking appliance 1 .
  • the user listens to the warning sound output from the user terminal 600 or checks the warning message displayed on the user terminal 600 to prevent non-combustion due to the closure of the exhaust port 90 of the current cooking appliance 1, so that the cooking appliance ( It can be confirmed that the operation of 1) is stopped.
  • the control unit 200 stops the operation of the cooking appliance 1 by blocking the gas supply, rotates the first convection fan 51b and the second convection fan 52b for a predetermined time to discharge unburned gas, When a predetermined time elapses, the gas supply may be resumed to start the operation of the cooking appliance 1 .
  • the controller 200 may start the preheating operation of the cooking appliance 1 again. have.
  • the control unit 200 may determine whether the temperature of the cavity 40 is equal to or greater than the second reference temperature after a predetermined time elapses after restarting the preheating process, and if the temperature of the cavity 40 is equal to or greater than the second reference temperature as a result of the determination, cooking It is determined that there is no problem in the combustion process of the appliance 1 , and the cooking appliance 1 may be controlled to start cooking.
  • the control unit 200 controls the combustion process of the cooking appliance 1 such as non-combustion due to the closing of the exhaust port 90 . It is determined that a problem has occurred and the operation of the cooking appliance 1 may be stopped again. In addition, the control unit 200 stops the operation of the burner 60 to cut off the gas supply, rotates the convection fan 50b for a predetermined time to circulate the air inside the cavity 40, and closes the door 2a. It can be kept locked.
  • the controller 200 detects the temperature of the cavity 40 of the cooking device 1 to determine the combustion abnormality of the cooking device 1 and accordingly stops the operation of the cooking device 1 and , starting the operation after a certain period of time has elapsed may be repeated. If a problem occurs repeatedly in the combustion process of the cooking appliance 1 for a predetermined number of times, the controller 200 may stop the operation of the cooking appliance 1 and control the operation not to start again.
  • the temperature sensor 80 may detect the temperature of the cavity 40 ( 1065 ).
  • the controller 200 may determine whether the temperature of the cavity 40 sensed by the temperature sensor 80 during the cooking of the cooking appliance 1 is equal to or greater than a third reference temperature ( 1070 ).
  • the third reference temperature may be a preset temperature input by the user in advance through the input button 5a as a reference temperature necessary for cooking the food accommodated in the cavity 40 , and stored in advance in the memory 220 . It may be temperature data.
  • control unit 200 can determine whether the cooking appliance 1 is heated to a temperature higher than a preset temperature to cook food for a certain period of time after starting cooking. In general, as shown in FIG. The temperature of the cavity 40 rises above the third reference temperature.
  • the controller 200 determines that there is no problem in the combustion process of the cooking appliance 1, and the cooking appliance 1 continues cooking (1090). ) can be controlled.
  • the temperature of the cavity 40 does not rise because the gas cannot be burned inside the cooking appliance 1 during cooking. As shown in FIG. 9 , the temperature of the cavity 40 sensed by the temperature sensor 80 is less than the third reference temperature.
  • the controller 200 may determine whether the second reference time t2 has elapsed from the start of cooking of the cooking appliance 1 ( 1080 ).
  • the temperature sensor 80 detects the temperature of the cavity 40 again (1065), and the control unit 200 detects the temperature of the cavity 40 by the temperature sensor 80 (40). The temperature of may be compared again with the third reference temperature (1070).
  • the controller 200 may determine whether the temperature of the cavity 40 is smaller than the third reference temperature during the second starting time t2 after cooking is started.
  • the controller 200 determines that there is no problem in the combustion process of the cooking appliance 1 .
  • the control unit 200 controls the cooking appliance 1 such as non-combustion due to the closing of the exhaust port 90 . ), it is determined that a problem has occurred in the combustion process and the operation of the cooking appliance 1 may be stopped.
  • the controller 200 may control the operation of the burner 60 to stop while cooking is in progress ( S1081 ). That is, by controlling the first burner valve 61a and the second burner valve 62a included in the first burner 61 and the second burner 62, respectively, to cut off the gas supply, It can be controlled so that the combustion gas is not filled.
  • the controller 200 may control the convection fan 50b to rotate for a second predetermined cycle time ( 1082 ). That is, the control unit 200 circulates the air inside the cavity 40 by controlling each of the first convection fan 51b and the second convection fan 52b to rotate for a predetermined time, and the inner beauty of the cavity 40 The combustion gas may be discharged to the outside of the cooking appliance 1 .
  • the second circulation time during which the convection fan 50b circulates may be the same as or different from the above-described first circulation time, and may vary depending on the elapsed time of the cooking progress.
  • the controller 200 may control the door 2a of the cooking appliance 1 to be locked for a predetermined second locking time ( 1083 ). That is, the control unit 200 can secure the user's safety by controlling the door 2a to be locked for a predetermined time until the unburned gas inside the cooking appliance 1 is discharged to the outside or disappears.
  • the second locking time at which the door 2a is locked may be the same as or different from the above-described second locking time, and may vary depending on the elapsed cooking time.
  • control unit 200 may control the notification unit 400 to transmit a warning sound indicating that a problem occurs in the combustion process of the cooking appliance 1, such as non-combustion due to the closing of the exhaust port 90 during cooking ( 1084).
  • the notification unit 400 may be implemented in the form of a speaker that outputs a voice signal or a sound signal, and may output a warning message regarding abnormal operation of the cooking appliance 1 as a predetermined sound signal such as a voice or a warning sound.
  • the notification unit 400 may output such a warning message once or may output it several times according to a predetermined setting.
  • the controller 200 may control the display 5b to display a warning message about a problem occurring in the combustion process of the cooking appliance 1 such as non-combustion due to the closing of the exhaust port 90 ( 1084 ).
  • a message regarding abnormal operation of the cooking appliance 1 may be displayed on the display 5b, and the user can cook the cooking appliance 1 through the message displayed on the display 5b. It can be confirmed that the operation is stopped due to non-combustion occurring in the cooking appliance 1 due to the closing of the exhaust port 90 during the process.
  • control unit 200 controls the communication unit 300 to transmit at least one data of a warning sound or a warning message about a problem occurring in the combustion process of the cooking appliance 1, such as non-combustion due to the closing of the exhaust port 90 , to the user. It can be transmitted to the terminal 600 (1085).
  • the user terminal 600 On the basis of the data received from the cooking appliance 1 through the communication unit 300 , the user terminal 600 provides information about a problem occurring in the combustion process of the cooking appliance 1 , such as non-combustion due to the closure of the exhaust port 90 . It is possible to output a predetermined sound signal such as a voice or a warning sound.
  • the user terminal 600 may display a warning message about a problem occurring in the combustion process of the cooking appliance 1 .
  • the control unit 200 stops the operation of the cooking appliance 1 by blocking the gas supply, rotates the first convection fan 51b and the second convection fan 52b for a predetermined time to discharge unburned gas, When a predetermined time elapses, the gas supply may be resumed to start the operation of the cooking appliance 1 .
  • the controller 200 may start the cooking operation of the cooking appliance 1 again. have.
  • the control unit 200 may determine whether the temperature of the cavity 40 is equal to or greater than the third reference temperature after a predetermined time elapses after restarting the preheating process, and if the temperature of the cavity 40 is equal to or greater than the third reference temperature as a result of the determination, cooking It is determined that there is no problem in the combustion process of the appliance 1 , and the cooking appliance 1 may be controlled to cook.
  • the control unit 200 controls the combustion process of the cooking appliance 1 such as non-combustion due to the closure of the exhaust port 90 . It is determined that a problem has occurred and the operation of the cooking appliance 1 may be stopped again. In addition, the control unit 200 stops the operation of the burner 60 to cut off the gas supply, rotates the convection fan 50b for a predetermined time to circulate the air inside the cavity 40, and closes the door 2a. It can be kept locked.
  • the controller 200 detects the temperature of the cavity 40 of the cooking device 1 to determine the combustion abnormality of the cooking device 1 and accordingly stops the operation of the cooking device 1 and , starting the operation after a certain period of time has elapsed may be repeated. If a problem occurs repeatedly in the combustion process of the cooking appliance 1 for a predetermined number of times, the controller 200 may stop the operation of the cooking appliance 1 and control the operation not to start again.
  • the user listens to the warning sound output from the user terminal 600 or checks the warning message displayed on the user terminal 600 to prevent non-combustion due to the closure of the exhaust port 90 of the current cooking appliance 1, so that the cooking appliance ( It can be confirmed that the operation of 1) is stopped.
  • the state in which the exhaust port 90 is closed is confirmed by sensing the temperature inside the cavity 40 of the cooking appliance 1 .
  • 12 is a flowchart illustrating a control flow in cooking of a cooking appliance according to an exemplary embodiment.
  • 13 is a diagram illustrating a cavity temperature of a cooking appliance according to an exemplary embodiment.
  • 14 is a diagram illustrating a change in a cavity temperature of a cooking appliance according to an exemplary embodiment.
  • the temperature sensor 80 may detect the temperature of the cavity 40 ( 1100 ).
  • the controller 200 may compare the temperature of the cavity 40 detected by the temperature sensor 80 with the first reference temperature ( 1110 ). When the temperature of the cavity 40 is equal to or greater than the first reference temperature, the controller 200 controls the cooking appliance 1 to start heating for cooking ( 1160 ), and the temperature of the cavity 40 is less than the first reference temperature.
  • the rear cooking appliance 1 may be controlled to start heating for preheating ( 1120 ).
  • Operations 1100, 1110, and 1120 may be the same as operations 1000, 1010, and 1020 illustrated in FIG. 5 , and the descriptions of operations 1100, 1110, and 1120 are the descriptions of operations 1000, 1010, and 1020. is replaced
  • the temperature sensor 80 may sense the temperature of the cavity 40 ( 1130 ).
  • the controller 200 may determine whether the temperature change of the cavity 40 is equal to or greater than a first reference value ( 1140 ).
  • the first reference value may be a preset temperature input by the user through the input button 5a or may be temperature data previously stored in the memory 220 .
  • the control unit 200 may time-series the temperature of the cavity 40 sensed by the temperature sensor 80 in the memory 220, based on the temperature of the cavity 40 stored in time-series in the memory 220 Thus, the temperature change of the cavity 40 may be obtained.
  • the controller 200 may acquire temperature changes at different times. For example, as shown in FIG. 13 , the control unit 200 obtains a temperature T1 from the temperature sensor 80 at time t1, obtains a temperature T2 at a time t2, obtains a temperature T3 at a time t3, and a time A temperature T4 can be obtained at t4.
  • the controller 200 may acquire a temperature change between adjacent times.
  • the controller 200 may acquire a temperature change T2-T1 between time t1 and time t2. Also, the controller 200 may acquire a temperature change T4-T3 between time t3 and time t4.
  • the controller 200 may compare the temperature change of the cavity 40 with a first reference value and determine whether the temperature change of the cavity 40 is greater than the first reference value.
  • the temperature of the cavity 40 increases relatively constantly, for example, as shown in FIG. 13 , and the temperature change of the cavity 40 may be a constant value as shown in FIG. 14 .
  • the temperature of the cavity 40 may rapidly increase in the initial stage of combustion. Because the exhaust port is closed, since heat is not discharged to the outside, the temperature of the cavity 40 may rapidly increase until the reference time tR when all the oxygen in the cavity 40 is burned. After the reference time tR, when all the oxygen in the cavity 40 is burned, the gas is not incompletely combusted or combusted, and the temperature of the cavity 40 may gradually increase.
  • the controller 200 may determine that the gas is incompletely burned or not combusted due to the exhaust port being closed.
  • the controller 200 may determine whether the temperature change of the cavity 40 is greater than a first reference value.
  • the first reference value may be set to a value smaller than a temperature change of the cavity 40 during normal operation.
  • the controller 200 determines whether a third reference time has elapsed since the start of heating ( 1150 ).
  • the controller 200 may determine whether the temperature change of the cavity 40 is equal to or greater than the first reference value during the third reference time after the start of heating.
  • the temperature sensor 80 detects the temperature of the cavity 40 and the control unit 200 determines that the temperature change of the cavity 40 is the first Determining whether or not the reference value or more is repeated is repeated.
  • the controller 200 continues heating the cavity 40 ( 1160 ).
  • the controller 200 may determine that there is no problem in the combustion process of the cooking appliance 1 . Accordingly, the controller 200 may control the cooking appliance 1 to continuously cook.
  • the control unit 200 determines whether the time during which the temperature change of the cavity 40 is less than the first reference value is equal to or greater than the fourth reference time do (1170).
  • the controller 200 may determine whether the temperature change of the cavity 40 is less than the first reference for the fourth reference time or longer.
  • the temperature sensor 80 detects the temperature of the cavity 40 and the controller 200 controls the cavity Determining whether the temperature change in (40) is equal to or greater than the first reference value is repeated.
  • the temperature change of the cavity 40 may change for various reasons. Therefore, if the temperature change of the cavity 40 for a short time is less than the first reference value, the controller 200 determines whether the temperature change of the cavity 40 is greater than or equal to the first reference value in order to confirm that the gas is not burned or incompletely burned. can be re-evaluated.
  • the controller 1180 stops heating ( 1180 ).
  • the controller 200 may determine that the gas is incompletely burned or not burned.
  • the temperature of the cavity 40 constantly rises during normal operation, and the temperature change of the cavity 40 may vary within a certain range.
  • the temperature change of the cavity 40 decreases after the reference time tR when all the oxygen in the early space 40 is burned, and the temperature change of the cavity 40 is the first reference value less than is maintained.
  • the controller 200 may identify incomplete combustion or non-combustion of the gas.
  • the controller 200 may stop cooking.
  • the control unit 200 may control the operation of the burner 60 to stop while cooking is in progress, and may control the convection fan 50b to rotate for a predetermined second circulation time, and may control the door ( 2a) may be controlled to be locked for a predetermined second locking time.
  • the control unit 200 may control the notification unit 400 to output a warning sound indicating that a problem occurs in the combustion process of the cooking appliance 1, such as non-combustion due to the closing of the exhaust port 90 during cooking.
  • the controller 200 may control the display 5b to display a warning message about a problem occurring in the combustion process of the cooking appliance 1 such as non-combustion due to the closing of the exhaust port 90 .
  • control unit 200 controls the communication unit 300 to transmit at least one data of a warning sound or a warning message about a problem occurring in the combustion process of the cooking appliance 1, such as non-combustion due to the closing of the exhaust port 90 , to the user. It can be transmitted to the terminal 600 .
  • a situation in which the exhaust port 90 is closed through a temperature change of the cavity 40 of the cooking appliance 1 is checked and the cooking appliance 1 ) has the effect of improving the stability of product operation by stopping the operation.
  • the cooking appliance 1 may determine whether it is incomplete or not combusted based on the temperature change of the cavity 40 . Accordingly, the cooking appliance 1 can distinguish that the temperature of the cavity 40 does not rise due to combustion failure from that of the cavity 40 does not rise due to another heating failure.
  • 15 is a flowchart illustrating a control flow in cooking of a cooking appliance according to an exemplary embodiment.
  • 16 is a diagram illustrating a change in a temperature change in a cavity of a cooking appliance according to an exemplary embodiment.
  • the temperature sensor 80 may detect the temperature of the cavity 40 ( 1200 ).
  • the controller 200 may compare the temperature of the cavity 40 detected by the temperature sensor 80 with the first reference temperature ( 1210 ). When the temperature of the cavity 40 is equal to or greater than the first reference temperature, the controller 200 controls the cooking appliance 1 to start heating for cooking ( 1160 ), and the temperature of the cavity 40 is less than the first reference temperature.
  • the rear cooking appliance 1 may be controlled to start heating for preheating ( 1220 ).
  • Operations 1200, 1210, and 1220 may be the same as operations 1000, 1010, and 1020 shown in FIG. 5, and the descriptions of operations 1200, 1210, and 1120 are the descriptions of operations 1000, 1010, and 1020. is replaced
  • the temperature sensor 80 may sense the temperature of the cavity 40 ( 1230 ).
  • the controller 200 may determine whether the change in the temperature change of the cavity 40 is equal to or greater than the second reference value ( 1240 ).
  • the second reference value may be a preset temperature input by the user through the input button 5a or may be temperature data previously stored in the memory 220 .
  • the control unit 200 may time-series the temperature of the cavity 40 sensed by the temperature sensor 80 in the memory 220, based on the temperature of the cavity 40 stored in time-series in the memory 220 Thus, it is possible to obtain a change in the temperature change of the cavity 40 .
  • the controller 200 may acquire temperature changes at different times. For example, the controller 200 may acquire a temperature change between adjacent times. The controller 200 may acquire a temperature change T2-T1 between time t1 and time t2. Also, the controller 200 may acquire a temperature change T4-T3 between time t3 and time t4.
  • the controller 200 may acquire changes in temperature changes at different times.
  • the control unit 200 may control the change in the temperature change at the time t4 (T4-T3)-(T2) based on the difference between the temperature change T2-T1 at the time t2 and the temperature change T4-T3 at the time t4. -T1) can be obtained.
  • the controller 200 may compare the change in the temperature change of the cavity 40 with the second reference value, and determine whether the change in the temperature change of the cavity 40 is greater than the second reference value.
  • the temperature of the cavity 40 increases relatively constantly, and the temperature change of the cavity 40 may be approximately “0” as shown in FIG. 16 .
  • the temperature of the cavity 40 may rapidly increase before the reference time tR and gradually increase after the reference time tR.
  • an inflection point in which the temperature change of the cavity 40 decreases that is, the change in the temperature change of the cavity 40 becomes smaller than "0" may occur.
  • the control unit 200 when it is determined that the change in the temperature change of the cavity 40 has decreased (more specifically, it is smaller than “0”) after the reference time tR, the control unit 200 causes the exhaust port to be closed due to incomplete combustion of the gas. Or it can be determined that it does not burn.
  • the controller 200 may determine whether the temperature change of the cavity 40 is greater than a second reference value in order to determine whether the cooking appliance 1 is operating normally.
  • the second reference value may be set to a value smaller than “0”.
  • the controller 200 determines whether a third reference time has elapsed since the start of heating (1250).
  • the temperature sensor 80 detects the temperature of the cavity 40 and the control unit 200 detects a change in the temperature change of the cavity 40 Determining whether the second reference value or more is repeated is repeated.
  • the controller 200 continues heating the cavity 40 ( 1260 ).
  • the controller 200 may determine that the cooking appliance 1 performs a normal combustion operation.
  • the controller 200 determines that the time during which the change in the temperature change of the cavity 40 is less than the second reference value is equal to or greater than the fourth reference time. It is determined whether it is recognized (1270).
  • the controller 200 may determine whether the change in the temperature change of the cavity 40 during the fourth reference time is less than the second reference.
  • the temperature sensor 80 detects the temperature of the cavity 40 and the control unit 200 It is repeated to determine whether the change in the temperature change of the cavity 40 is equal to or greater than the second reference value.
  • the controller 1180 stops heating ( 1280 ).
  • the controller 200 may determine that the gas is incompletely burned or not combusted.
  • the change in the temperature change of the cavity 40 during normal operation may fluctuate around “0”.
  • the temperature change of the cavity 40 decreases at the reference time tR when all the oxygen in the early space 40 is burned, and the change in the temperature change of the cavity 40 is "0" "It will be less than
  • the controller 200 may identify incomplete combustion or non-combustion of the gas.
  • the controller 200 may stop cooking.
  • the cooking appliance 1 may determine that it is incomplete or not combusted based on a change in the temperature change of the cavity 40 . As a result, the cooking appliance 1 can distinguish the failure of the temperature of the cavity 40 to rise rapidly due to the failure of combustion due to the failure of the temperature of the cavity 40 to rise due to the very low external temperature.
  • the disclosed embodiments may be implemented in the form of a recording medium storing instructions executable by a computer. Instructions may be stored in the form of program code, and when executed by a processor, may generate program modules to perform the operations of the disclosed embodiments.
  • the recording medium may be implemented as a computer-readable recording medium.
  • the computer-readable recording medium includes any type of recording medium in which instructions readable by the computer are stored.
  • ROM read only memory
  • RAM random access memory
  • magnetic tape magnetic tape
  • magnetic disk magnetic disk
  • flash memory an optical data storage device, and the like.
  • the device-readable storage medium may be provided in the form of a non-transitory storage medium.
  • 'non-transitory' means that the storage medium is a tangible device and does not include a signal (eg, electromagnetic wave), and this term is used when data is semi-permanently stored in the storage medium. and temporary storage.
  • the 'non-transitory storage medium' may include a buffer in which data is temporarily stored.
  • the method according to various embodiments disclosed in this document may be provided as included in a computer program product.
  • Computer program products may be traded between sellers and buyers as commodities.
  • the computer program product is distributed in the form of a device-readable storage medium (eg compact disc read only memory (CD-ROM)), or through an application store (eg Play StoreTM) or on two user devices (eg, It can be distributed (eg downloaded or uploaded) directly, online between smartphones (eg: smartphones).
  • a portion of a computer program product eg, a downloadable app
  • a machine-readable storage medium such as a memory of a manufacturer's server, a server of an application store, or a relay server. It may be temporarily stored or temporarily created.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Baking, Grill, Roasting (AREA)

Abstract

Machine de cuisson pouvant comprendre : un corps qui forme une cavité ; un capteur de température qui détecte la température de la cavité ; un brûleur qui chauffe la cavité par combustion d'un combustible gazeux ; et une unité de commande qui identifie un changement de température de la cavité sur la base de la température détectée par le capteur de température, et arrête le fonctionnement du brûleur si le changement de température de la cavité est inférieur à une valeur de référence.
PCT/KR2020/015763 2020-01-02 2020-11-11 Machine de cuisson et son procédé de commande WO2021137416A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US17/854,080 US20220325894A1 (en) 2020-01-02 2022-06-30 Cooking apparatus and control method thereof

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2020-0000118 2020-01-02
KR20200000118 2020-01-02
KR10-2020-0039293 2020-03-31
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980067246A (ko) * 1997-01-31 1998-10-15 배순훈 가스오븐렌지의 컨벡션모터 제어방법
JP2001041461A (ja) * 1999-07-30 2001-02-13 Harman Co Ltd 加熱調理器
KR20040028361A (ko) * 2002-09-30 2004-04-03 엘지전자 주식회사 가스오븐레인지 및 그 조리제어방법
KR20050011809A (ko) * 2003-07-24 2005-01-31 엘지전자 주식회사 컨백션전자레인지의 제어방법
KR20110076168A (ko) * 2009-12-29 2011-07-06 린나이코리아 주식회사 오븐의 고온요리를 위한 온도제어방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980067246A (ko) * 1997-01-31 1998-10-15 배순훈 가스오븐렌지의 컨벡션모터 제어방법
JP2001041461A (ja) * 1999-07-30 2001-02-13 Harman Co Ltd 加熱調理器
KR20040028361A (ko) * 2002-09-30 2004-04-03 엘지전자 주식회사 가스오븐레인지 및 그 조리제어방법
KR20050011809A (ko) * 2003-07-24 2005-01-31 엘지전자 주식회사 컨백션전자레인지의 제어방법
KR20110076168A (ko) * 2009-12-29 2011-07-06 린나이코리아 주식회사 오븐의 고온요리를 위한 온도제어방법

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