KR100199227B1 - Electric heating rice pot - Google Patents

Abstract

The present invention relates to a method of controlling the temperature of cooked rice in an electric heat-preserving rice cooker, comprising the steps of: The method according to any one of claims 1 to 3, further comprising the steps of: if the heater is heated during the boiling maintenance process and the internal temperature is 125 ° C or higher, A step of judging whether a time has elapsed after a certain period of time has elapsed from a high temperature; if the predetermined time has elapsed, a conventional warming process is performed; if a predetermined time has not elapsed, Determining whether the predetermined temperature is equal to or lower than a predetermined temperature, If the microprocessor does not correctly recognize the completion temperature at the time when the completion temperature of the cooker is 125 ° C or higher, it is necessary to raise the temperature of the heater to a predetermined temperature to determine whether a predetermined time has elapsed. 12 minutes after the start of the rice cooker, the rice burning phenomenon is eliminated, and the electric rice cooker is prevented from burning due to the high temperature, so that the life of the rice cooker can be prolonged.

Description

How to control temperature of cooked rice cooker

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a conventional electric heat-insulated rice cooker. FIG.

FIG. 2 is a graph showing a cooking process of a general electric heat-insulated rice cooker.

[Fig. 3] Fig. 3 is a flowchart showing a general thermosensitive rice cooker operation state.

4A to 4B are flowcharts illustrating a method of controlling the temperature of cooked rice in an electric heat-insulating rice cooker to solve the present invention.

Description of the Related Art [0002]

10: microprocessor 12: key input unit

14: sensing part 16: heater driving part

18: Display unit T1: Calling process

T2: first heating step T3: second heating step

T4: boiling maintenance process T5: moxibustion process

DETAILED DESCRIPTION OF THE INVENTION [

[Object of the invention]

[TECHNICAL FIELD OF THE INVENTION AND RELATED ART OF THE INVENTION]

More particularly, the present invention relates to an electric heat-preserving rice cooker, and more particularly, to an electric heat-preserving rice cooker that controls a cooked completion temperature (125 ° C) of a maximum temperature during a cooking process, (For example, 12 minutes) after the start of steam boiling at a high temperature even if the temperature of the cooked temperature rises above a predetermined temperature (125 ° C.), and the phenomenon that rice is burned after a certain time To prevent the phenomenon that the temperature of the cooked rice cooker is reduced.

As is well known, the thermo-sensitive rice cooker is provided with operating conditions for each process according to each contents, and the process starts according to the operation of each cooking key after detecting the state where the inner pot is seated for the first time.

As shown in the block diagram of FIG. 1, the general electric heat-preserving rice cooker includes a key input unit 12 constituted by keys for setting various operating environments of an electric heat-retaining rice cooker having a cooking function and a warming function, A sensing unit 14 installed in the lid and detecting a temperature generated by various heaters by a sensor, and a controller 14 for controlling the temperature of the thermo-sensitive cooker according to the temperature detected by the key input of the key input unit 12 and the temperature sensor. A plurality of heater driving units 16 installed on the bottom, lid and body of the thermo-electric rice cooker and operating under the control of the microprocessor 10 to heat the inside of the thermo-electric cooker, And a display unit 18 for displaying the operation state of the above-described electric heat-insulated rice cooker.

1 to 3B, the microprocessor 10 incorporated in the thermosensor cooker maintains the key input standby state (S301) when the operation power is applied to the thermosensor cooker (S301) When the cooking mode setting key is input through the key input unit 12 to perform cooking (S302), it is determined whether the cooking start key is on (S303).

If it is determined that the cooking key is not input in the key input unit 12, the microprocessor 10 sets the operation mode of the thermosensitive cooker to the user through the key input unit 12 (S303-1) The process returns to step S301.

On the other hand, if the result of the determination in step S303 is that the cooking start key of the result key input unit 12 is on, the microprocessor 10 determines whether or not the cooking sensor The internal temperature of the thermo-sensitive rice cooker to be sensed and input is checked (S304) to determine whether the temperature inside the thermo-sensitive cooker is 75 ° C or more (S305).

The microprocessor 10 cancels the cooking process (S305-1) if the internal temperature of the thermoregulating rice cooker is higher than or equal to 75 ° C. If the internal temperature of the thermoregulating cooker is lower than 75 ° C., (Step S306) if the internal temperature of the thermosensible rice cooker sensed by the sensing sensor (floor, body, and cooking temperature sensor installed on the lid) of the thermostat 12 is greater than or equal to 45 ° C.

If the internal temperature of the thermoregulating rice cooker is 45 ° C or higher as determined by the microprocessor 10 (S306-1), the microprocessor 10 controls the heater driving unit (T1) for 10 minutes and 11 minutes (S307) in order to increase the internal temperature while supplying the operating power to the heater for the lid and the heater for the lid, So that the inside temperature of the rice cooker is raised to 45 ° C.

When the execution of the calling process (T1) is completed, a first heating process (T2) is performed (S308) in which the inside of the thermo-sensitive cooker is raised to 75 ° C to determine the amount of the rice to be cooked The second heating step (T3) for increasing the internal temperature to 102 DEG C is performed (S309) while allocating the heat amount based on the cooking amount determined in the first heating step (T2) .

The microprocessor S310 performs the boiling maintenance process T4 (S310) and determines whether or not the determination is made in the second heating process T3 of the previous stage (For example, 102125 占 폚) is determined (S312).

When the heating amount is determined to be 125 ° C., for example, the microprocessor 10 heats the cooking heater, the heater for the lid, and the heater for the lid provided at the bottom of the heater driving unit 16 (S313) It is determined whether or not the temperature inside the thermosensor is sensed through a sensor (a sensor for detecting the temperature of the cooker installed on the floor, a lid, and a body), and the temperature is determined to be 125 ° C (S314).

If it is determined that the temperature inside the rice cooker is not 125 캜, the microprocessor 10 senses the temperature of the rice cooker through the sensing sensor 14 (sensor for sensing the cooking temperature of the floor, the lid, and the body) If it is determined that the internal temperature of the rice cooker is 125 캜 or more (S314-1), the process returns to the step S313 if the temperature is below 125 캜 to continuously heat the cooking heater, the heater for the lid and the heater for the lid, .

However, if the result of the determination in step S314 is that the temperature inside the thermosensitive cooker is 125 ° C or the result of the determination in step S314-1 is that the temperature inside the thermoresistant cooker is 125 ° C or more, The moxibustion process T5 is performed (S315), and it is determined whether a predetermined time (for example, 12 minutes) has elapsed (S316).

The microprocessor 10 stops the heating of the cooking heater, the heater for the lid, and the heater for the lid provided at the bottom of the heater driving unit 16 (S317) It is determined whether or not 12 minutes have elapsed. If it is 115 ° C or less, it is judged whether or not the temperature of the heater is 115 ° C. or less (S318) (S319), and returns to step S316 to determine again whether or not 12 minutes has elapsed.

In step S315, it is determined whether 12 minutes have elapsed (S316). If 12 minutes have passed, the cooking process is terminated and the warming process is performed (S320).

However, even when the sensing sensor of the sensing unit senses a temperature of 125 ° C or more, which is the cooking completion temperature, during the boiling maintenance process of the cooking process, the microcomputer does not accurately recognize the cooking completion temperature And there was a phenomenon that the cooked rice was burnt.

In addition, even when the temperature of the cooked state rises to 125 ° C or more in the event of an abnormality such as a burning phenomenon during cooking, the electric cooked rice cooker is burned off due to failure to lower the cooked completion temperature to below 125 ° C, It has become a factor to shorten.

[Technical Problem]

The object of the present invention is to solve the above-described drawbacks, and it is an object of the present invention to provide a rice cooker which can accurately recognize the completion temperature of the cooked rice when the cooked temperature rises above a predetermined temperature (125 ° C) (For example, 12 minutes) after the start of steam boiling at a high temperature even if the rice is not cooked.

Another object of the present invention is to prevent the electric heater cooker from being burned out due to high temperature due to the first object, thereby prolonging the life of the electric heater cooker.

In order to achieve the above-mentioned objects, the present invention provides a method of controlling a rice cooker, comprising: a calling process for controlling the operation of each heater with a key input or an input of each sensor to heat the internal temperature of the rice cooker to a predetermined temperature, A second heating step of heating the internal temperature to a predetermined temperature, and a boiling maintenance step of heating the interior so that the internal temperature is raised to the cooking completion temperature, And controlling the temperature of the heater to be 125 DEG C or higher and performing a warming process when a predetermined time has elapsed, the method comprising the steps of: heating the heater during the boiling maintenance process, If the temperature exceeds 125 ° C, it is regarded that the completion of cooking completion temperature is regarded as failed and a certain time is elapsed. A step of performing steam boiling at a high temperature (130 ° C) if the cooking temperature is 130 ° C, a step of determining whether a steam boiling time at a high temperature has elapsed for a predetermined time, If it is determined that the predetermined time has not elapsed, it is determined whether the internal temperature of the thermosensor is below a predetermined temperature. If it is determined that the predetermined time has elapsed, And a step of ascertaining whether a predetermined time has elapsed after the temperature has risen to a predetermined temperature.

[Structure and operation of the invention]

The constitution of the thermosensible rice cooker according to one embodiment of the present invention includes a microprocessor for controlling the thermosensor, a key input unit for inputting cooking data, a sensing unit having various sensors, a heater driving unit for heating each unit, And a display unit for displaying information.

4A to 4B are flowcharts illustrating a method of controlling the temperature of cooked rice in an electric heat-insulating rice cooker to solve the present invention.

A step S401 of maintaining the key input standby state when the operation power is turned on, a step S402 of turning on the cooking mode setting key by the user during the key input standby state, and if the determined cooking mode setting key is off (S403) of determining whether the cooking start key is on if the cooking mode setting key is on, and returning the operation mode to the user if the determined cooking start key is off S403-1), and then returns to step S401. If the cooking start key is on, the internal temperature is checked (S404). If the internal temperature is checked, (S405-1) of canceling the cooking process if the determined internal temperature is equal to or higher than 75 DEG C, and if the internal temperature is equal to or lower than 75 DEG C, Judging whether the temperature is equal to or higher than 45 DEG C (S (S406-1), and if the internal temperature is 45 DEG C or lower, the step (T1) is performed for a predetermined time (for example, 10 minutes and 11 minutes) (S408) of performing a first heating step (T2) for determining a cooking amount when the calling step (T1) is executed; and a step (S408) of performing a first heating step A step S409 of performing a second heating step T3 for raising the temperature of the first heating step T3 to a predetermined temperature such as 102 DEG C and starting the boiling maintenance step T4 when the second heating step T3 is performed S412 of S412, S412 of S412, S412 of S412, S410 of S410, S411 of S410, S412 of S410, (S414) of determining whether the internal temperature is a predetermined temperature (for example, 125 deg. C) when the temperature is determined (for example, 125 deg. C) (S414-1) judging whether or not the internal temperature is equal to or higher than 125 deg. C, and returning to step S413 if the determined internal temperature is equal to or lower than 125 deg., And if the resultant internal temperature determined in the step S414 is equal to 125 deg. A step S415 of performing a moxibustion process T5 if the internal temperature determined in step S414-1 is 125 ° C or more and a step S415 of performing a moxibustion process T5 when a predetermined time (S417) of stopping the heating of the various heaters when the determined result is not longer than 12 minutes (S416); determining whether the internal temperature is 115 ° C or less when the heating of the heater is stopped (S416); and if the determined result is 115 ° C or more, returning to step S416; heating the various heaters to 115 ° C or less and returning to step S416; A step S420 of performing a warming process if the determined result is 12 minutes, the step S4 (S421) that the cooking completion temperature is not recognized when the internal temperature is equal to or higher than 125 ° C as determined in step 14-1), and determining whether a predetermined time (for example, 1 minute) has elapsed when the cooking completion temperature is not recognized (S422-1) determining whether the internal temperature is a predetermined temperature (for example, 130 占 폚) if the determined result is less than one minute; (Step S423) if the internal temperature determined in step 422-1 is 130 占 폚, and whether the predetermined time (e.g., 12 minutes) has elapsed (S425) if the determined result is not more than 12 minutes (S425); stopping the various heaters when the determined result is less than 12 minutes (S425); and if the heater is stopped, Is judged to be equal to or lower than a predetermined temperature (for example, 120 DEG C) Shows a made of an (S426) and a step (S427) to the determined result returns to the step (S424) is more than 120 ℃ and, returns to step (S424) was heated to various heater is more than 120 ℃.

In order to control the cooking completion temperature at the time of cooking with the electric heat-insulated rice cooker according to the present invention, when the cooker sets the cooking function by operating the key input unit 12, the micro- The microprocessor 10 supplies operating power to the respective heaters (the bottom, the body, and the lid of the lid) of the heater driving unit 16 provided on the bottom and the body of the microwave oven The temperature and the temperature detected by the respective temperature sensors of the sensing unit 11 provided on the bottom and the body of the thermosensor and the lid of the thermosensor, Thereby controlling the supplied operation power so that the thermo-sensitive rice cooker can perform the cooking function.

The present invention as described above will be described in detail with reference to FIGS. 1 to 2 and FIGS. 4A to 4B.

The microprocessor 10 incorporated in the thermosensor is connected to the thermosensor 10 through the key input unit 12 to allow the user to cook while maintaining the key input standby state (S401) (S402), it is determined whether the cooking start key is on (S403).

If it is determined that there is no input of the cooking start key in the key input unit 12, the microprocessor 10 sets the operation mode of the thermosensitive cooker to the user through the key input unit 12 (S403-1) The process returns to step S401 to continue to hold the key input standby state.

On the other hand, if the cooking start key of the result key input unit 12 determined in step S403 is on, the microprocessor 10 determines whether the cooking sensor (S404), and it is determined whether or not the temperature inside the thermosensitive cooker is 75 DEG C or more (S405).

The microprocessor 10 cancels the cooking process (S405-1) if the internal temperature of the thermoregulating rice cooker is higher than or equal to 75 ° C. If the internal temperature of the thermoregulating cooker is lower than 75 ° C., It is determined whether or not the internal temperature of the thermosensible rice cooker sensed by the sensing sensor (bottom, body, cooking temperature sensor installed on the lid) of the thermostat 12 is above 45 ° C (S406).

If the result of the determination in the microprocessor 10 is that the temperature inside the rice cooker is 45 ° C or more (S406-1), the microprocessor 10 controls the heater driving unit (Step S407) for 10 minutes and 11 minutes in order to increase the internal temperature of the cooker, the heater for the lid and the heater for the lid, So that the inside temperature of the rice cooker is raised to 45 ° C.

The microprocessor 10 heats the cooking heater of the heater driving unit 16 and the heater for the lid and the heater for the body to raise the internal temperature of the rice cooker to 75 DEG C and determine the amount of food to be cooked (S408) to determine the amount of rice introduced into the rice cooker. Then, based on the cooking amount determined in the first heating step (T2), the amount of rice is distributed The second heating step T3 for raising the temperature to 102 deg. C is performed (S409), and the amount of heat by the determination of the cooking amount is varied.

The microprocessor S310 performs the boiling maintenance process T4 in step S410 and determines whether or not the determination is made in the second heating process T3 of the previous stage (S411), and determines the heating amount (e.g., 102125 占 폚) (S412).

The microprocessor 10 heats the cooking heater, the heater for the lid, and the heater for the lid provided on the bottom of the heater driving unit 16 (S413) so that the temperature of the sensing unit 14 It is determined whether or not the inside temperature of the thermosensor is sensed through a sensing sensor (a sensor for detecting the temperature of the cooking utensil installed on the floor, the lid, and the body) (S414).

If it is determined that the temperature inside the rice cooker is not a predetermined temperature, that is, 125 캜, the microprocessor 10 is sensed through a sensing sensor (a sensor for detecting a cooking temperature installed on the floor, (S414-1). If the temperature is lower than 125 占 폚, the process returns to step S413 and the heater for the lid and the heater for the lid (not shown) provided on the bottom of the heater driving unit 16 Is continuously heated.

On the other hand, if it is determined in step S414 that the inside temperature of the rice cooker is 125 degrees Celsius, the moxibustion process T5 for heating to a predetermined temperature (115 degrees Celsius) is performed (S415) do.

The microprocessor 10 stops heating the heater for cooking, the heater for the lid and the heater for the lid provided at the bottom of the heater driving unit 16 (S417) It is determined whether or not 12 minutes has elapsed. If it is 115 ° C or less, it is judged whether or not the temperature of the heating heater 16 is below 115 ° C. (S418) (S419), and then returns to step S416 to again determine whether 12 minutes have elapsed.

If it is determined that 12 minutes have elapsed, it is determined that 12 minutes have elapsed (S415). If 12 minutes have elapsed, the cooking process is terminated and the warming process is performed (S420).

However, if it is determined in step S414-1 that the internal temperature of the thermosensitive cooker is 125 DEG C or more, the microprocessor 10 regards the cooked completion temperature as not being recognized by the set program (S421) (S422).

If the determined result is not 1 minute, the microprocessor 10 judges whether the inside temperature of the thermosensitive cooker is 130 ° C. (step S422-1). If it is 130 ° C., the microprocessor 10 returns to step S422, It is continuously judged whether or not minute has elapsed.

On the other hand, if 1 minute has elapsed as a result of the determination in step S422, or if the internal temperature of the result determined in step 422-1 is 130 占 폚, the microprocessor 10 determines that the rice (Step S423).

When the microcomputer 10 determines that the microcomputer 10 has lapsed for 12 minutes (S424), if the microcomputer 10 has not started the microcomputer 10 for 12 minutes, (S425) the heating of the cooking heater, the heater for the lid, and the heater for the lid provided at the bottom of the heater driving unit 16 (S425).

If it is determined that the internal temperature of the thermosensitive cooker is 120 ° C or higher, the process returns to step S424, and it is continuously judged whether the steam boiling time at the high temperature of 130 ° C, that is, 12 minutes has elapsed.

If it is determined at step S424 that the steam rising time has reached 12 minutes, the microprocessor 10 determines that the rice has been cooked and performs the warming step at step S420.

[Effects of the Invention]

As described above, according to the present invention, even if the microprocessor does not accurately recognize the completion temperature of the cooked rice when the cooked temperature rises to 125 ° C or more during the cooking process, the rice cooked at the high temperature is started for 12 minutes, The present invention has the effect of preventing the phenomenon of burning of the thermo-electric cooker due to the high temperature and prolonging the life of the thermo-electric cooker.

Although the present invention has been described with reference to an embodiment of the method for controlling the temperature of cooked rice of the thermosensitive rice cooker as described in the claims, the present invention is not limited thereto and various applications and modifications thereof will be.

Claims (3)

A step of controlling the operation of each heater by a key input or an input of each sensor so as to heat the internal temperature of the thermo-sensitive rice cooker to a predetermined temperature, thereby calling the absorbed rice, a first heating step of heating the internal temperature to a predetermined temperature, A second heating step of heating the internal temperature to a predetermined temperature and a boiling maintenance step of heating the inside so that the internal temperature is raised to the cooking completion temperature, Wherein the heater is heated during the boiling maintenance process and the temperature inside the rice cooker is higher than or equal to 125 ° C, If the predetermined time has elapsed or the cooking temperature is 130 ° C, the steam is heated at a high temperature (130 ° C) Determining whether a predetermined time has elapsed from a high temperature; determining whether a predetermined time has elapsed at a high temperature; if the predetermined time has elapsed, performing a conventional warming process; if a predetermined time has not elapsed, Determining whether a predetermined time has elapsed when the temperature is determined to be equal to or higher than a predetermined temperature, and determining whether a predetermined time has elapsed after heating the heater to a predetermined temperature if the temperature is lower than a predetermined temperature A method of controlling temperature of cooked rice of an electric heat - insulated rice cooker. The method as claimed in claim 1, wherein, when the temperature inside the rice cooker is 125 ° C or more, it is determined that the cooking completion temperature is recognized as failed and a predetermined time is set to 1 minute. . The method as set forth in claim 1, wherein the time for judging whether or not a certain amount of time has elapsed is set to 12 minutes at the high temperature (130 ° C).