JP2006002989A - Heating cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heating cooker capable of improving user's convenience in heating cooking after detecting the boiling of a cooked object. <P>SOLUTION: An operation control means 11 conducts an ignition processing of a gas burner 3 in a state of opening a bypass solenoid valve 7 in accordance with pressing operation of a button switch 30, and determines a time-up time of a timer 15 in accordance with the operation of a + key switch 41 or a - key switch 42, when "boiling timer mode" is selected by a mode switch 44. The operation control means 11 starts the timekeeping of the timer 15 when the boiling of the cooked object 2 is detected by a boiling detecting means 12, conducts the heating operation while keeping the bypass solenoid valve 7 in an opened state until the time-up of the timer 15, and puts out the gas burner 3 by closing a main solenoid valve 20 at the time-up of the timer 15. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a cooking device having a function of detecting and notifying boiling of cooked food.

For example, in a gas stove that heats the food with a gas burner, there is known a gas stove that has a function of detecting boiling of the food and has a function of notifying by a buzzer when the boiling of the food is detected. In addition, heating the cooked product with the gas burner set to a large fire, the gas burner is set to a small fire when boiling of the cooked product is detected, and then the heating operation in the “water heating mode” is maintained for 5 minutes. A gas stove that performs the above has also been proposed (see, for example, Patent Document 1).
JP-A-5-306817

  In the above-described conventional hot water boiling mode of the gas stove, the boiled buzzer informs the boiling of the cooked food, and the cooked product is kept in a boiled state for 5 minutes after boiling. Convenient. However, in the “hot water boiling mode”, when the hot water boils, the heating power of the gas burner is switched from a large fire to a small fire. Therefore, for example, when a user puts water into a pan to boil pasta, starts heating in the "water heater mode", recognizes that the water has boiled due to a buzzer sound, and put the pasta into the hot water In addition, the gas burner may not be able to maintain a boiling state due to insufficient thermal power. In this case, the user has to perform an operation to cancel the “water heating mode”, and there is annoyance that the heating power of the gas burner has to be switched from a small fire to a large fire.

  Even if the gas burner does not have insufficient thermal power, the gas burner extinguishes when 5 minutes have passed since boiling in the “water heating mode”. There is annoyance that the person has to restart the cooking by igniting the gas burner again.

  This invention is made | formed in view of such a background, and it aims at providing the heating cooker which improved the convenience of the user in the heating cooking after the boiling of a foodstuff was detected. .

  The present invention has been made in view of the above background, a heating means for heating the food, a heating amount changing means for changing the heating amount of the heating means, a boiling detection means for detecting the boiling of the food, A boiling notification means for informing when the boiling of the cooked food is detected by the boiling detection means, a timer for starting time measurement when the boiling of the cooked food is detected by the boiling detection means, and the timer starts counting time Timer time setting means for arbitrarily setting a time-up time, which is a time until the time is up, within a predetermined time range, timer time display means for displaying the time-up time, and cooking by the boiling detection means The heating amount of the heating means is set to be equal to or greater than the heating amount at the time of boiling detection by the heating amount changing means until the timer expires after the timer starts counting by detecting the boiling of the object. Lifting, and the timer is characterized in that a heating control means for performing boiling timer operation for stopping the heating means when the time is up.

  According to the present invention, in the boiling timer operation, the heating control means controls the heating amount of the heating means from when the boiling detection means detects the boiling of the food until the timer expires. The heating amount changing means maintains the heating amount or more when boiling is detected. Therefore, for example, when a user tries to boil pasta, water (cooked food) is first heated with a heating amount near the maximum level that can be changed by the heating amount changing means, and the boiling of hot water is recognized by the notification by the notifying means. Then, when the pasta is put in hot water, the heating means continues to operate at the heating amount or higher, so that the heating amount of the heating means can be prevented from being insufficient.

  Further, the user can arbitrarily set the time-up time by the timer time setting means while visually checking the time-up time displayed on the timer time display means. Therefore, when heating the cooked food in which the time required until cooking is completed after being put in pre-boiled hot water, such as pasta, instant noodles, retort food, etc., the user sets the time-up time setting means. Thus, by setting the required time as the time-up time of the timer, the heating means can be stopped as the required time elapses. Thus, cooking failure due to excessive or insufficient heating time for the food can be prevented and cooking can be performed easily, so that convenience for the user can be improved.

  Further, the heating control means causes the heating amount changing means to boil the heating amount of the heating means until the timer times out after the timer starts counting by the boiling detection of the food by the boiling detection means. The heating amount at the time of detection is maintained.

  According to the present invention, for example, when cooking with a predetermined heating amount (large fire, medium fire, etc.) for the cooked food after boiling, the user sets the heating amount by the heating amount changing means. By starting the boiling timer operation, it is not necessary to perform an operation of changing the heating amount of the heating means by the heating amount changing means after the boiling detection. Therefore, user convenience can be improved.

  In addition, when the start of the boiling timer operation is instructed by the boiling timer operation start instructing means for instructing the start of the boiling timer operation, the timer time-up time is set to zero. Timer initial setting means.

  According to the present invention, the timer time-up time is initialized to 0 by the timer initial setting means. Therefore, when the user forgets to set the time-up time by the timer time setting means, the heating means is stopped when boiling of the food is detected, and heating is performed until a time unintended by the user elapses. Cooking does not continue.

  An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a configuration diagram of a gas stove which is a heating cooker according to the present invention, FIG. 2 is a flowchart showing an operation procedure in a heat retention mode of the gas stove shown in FIG. 1, and FIG. 3 is a boiling timer mode of the gas stove shown in FIG. It is the flowchart which showed the operation | movement procedure.

  Referring to FIG. 1, the gas stove A includes a gas burner 3 (corresponding to the heating means of the present invention) for heating the food 2 contained in the cooking vessel 1, and a gas supply pipe 5 for supplying fuel gas to the gas burner 3. The original solenoid valve 20 provided in the motor, the electric heating amount adjusting valve (corresponding to the heating amount changing means of the present invention) 21, the bypass solenoid valve 7 provided in the bypass pipe 6 communicating with the gas supply pipe 5, cooking A temperature sensor 8 for detecting the temperature of the bottom of the container 1, an ignition electrode 4 for igniting the gas burner 3, a controller 9 for controlling the operation of the gas stove A, and a button switch 30 for controlling the ignition / extinguishing of the gas burner 3 and adjusting the heating power , A buzzer 16, and an operation panel 40 for setting a “heat retention mode” and a “boiling timer mode” to be described later.

  The controller 9 is an electronic unit composed of a microcomputer or the like, and includes an operation control means 11 and a boiling detection means 12. An operation signal of the button switch 30 and an operation signal of the operation panel 40 are input to the operation control unit 11, and the original electromagnetic valve 20, the heating amount adjustment valve 21, and the bypass are controlled by the control signal output from the operation control unit 11. The opening and closing of the electromagnetic valve 7, the operation of the ignition electrode 4, the sounding of the buzzer 16, and the display on the display unit of the operation panel 40 are controlled. The operation control means 11 includes a timer 15.

  The boiling detection means 12 detects the boiling of the food 2 based on the temperature detected by the temperature sensor 8. Specifically, in the process in which the temperature detected by the temperature sensor 8 increases due to heating of the food 2 by the gas burner 3, the boiling of the food 2 is determined from the rate of increase of the temperature detected by the temperature sensor 8.

  On the operation panel 40, a mode changeover switch 44 (including the function of the boiling timer operation start instruction means of the present invention) for instructing switching between the “heat retention mode” and the “boiling timer mode” is set to the “boiling timer mode”. The boiling timer display unit 45 that is lit at the time, the thermal insulation display unit 46 that is lit when the “thermal mode” is set, and the time-up time of the timer 15 in the “thermal mode” and the “boiling timer mode” From the start to the time up) + key switch 41 and -key switch 42 (corresponding to the timer time setting means of the present invention), and the timer 15 timer up time and the time up during the time measurement A timer time display unit 43 for displaying the remaining time is provided.

  Then, each operation signal of the mode changeover switch 44, the + key switch 41, and the -key switch 42 is input to the operation control means 11, and the timer time display unit 43 according to the control signal output from the operation control means 11. And the lighting / extinction of the boiling timer display unit 45 and the heat retention display unit 46 are controlled.

  The button switch 30 has a contact that opens and closes by a pressing operation, and an operation signal corresponding to the opening and closing of the contact is input to the operation control means 11. Further, the original solenoid valve 20 and the heating amount adjustment valve 21 are opened and closed according to the pressing operation of the button switch 30, and the opening degree of the heating amount adjustment valve 21 is varied according to the rotation operation of the button switch 30.

  Next, when the operation control unit 11 detects the pressing operation of the button switch 30 by the user by the input of the operation signal, the operation control unit 11 switches the original electromagnetic valve 20 and the bypass electromagnetic valve in a state where spark discharge is generated in the ignition electrode 4. The gas burner 3 is ignited by opening the valve. The operation control means 11 is in the “heat retention mode” when the mode switch 44 is first operated after the gas burner 3 is ignited. Further, every time the mode switch 44 is operated, the “heat retention mode” and the “boiling timer mode” are switched.

  First, according to the flowchart shown in FIG. 2, the control procedure of the heating operation by the operation control means 11 in the “heat retention mode” will be described. When set to the “warming mode”, the operation control means 11 sets the initial value of the time-up time of the timer 15 to 5 minutes in STEP 10 and displays “5” on the timer time display unit 43 in STEP 11.

  And the operation control means 11 performs the loop which consists of following STEP12 and STEP13, confirming the presence or absence of operation of + key switch 41 or -key switch 42 in STEP12, and the foodstuff 2 by the boiling detection means 12 in STEP13. Wait for boiling to be detected. When the + key switch 41 or the −key switch 42 is operated in STEP12, the operation branches to STEP30, and the operation control means 11 sets the timer time of the timer 15 in accordance with the operation of the + keyswitch 41 or the −key switch 42. In step 31, the timer time display unit 43 displays the changed timer time. Thereby, the user can arbitrarily set the time-up time within a preset range (for example, 1 to 60 minutes) while visually checking the time-up time displayed on the timer time display unit 43.

  On the other hand, when boiling of the food 2 is detected by the boiling detection means 12 in STEP 13, the operation proceeds to STEP 14 and the operation control means 11 causes the buzzer 16 to intermittently sound three times to let the user boil the food 2. Inform. Then, in subsequent STEP 15, the operation control means 11 turns off the bypass solenoid valve 7 to reduce the heating amount (combustion amount) of the gas burner 3, and starts counting by the timer 15 in STEP 16.

  Next, the operation control means 11 executes a loop composed of STEP 17 and STEP 18, while updating the display of the remaining time of the timer 15 on the timer time display unit 43 in STEP 17, while remaining in step 18 until the timer 15 expires. Wait for the time to reach 30 seconds. Then, when the remaining time until the timer 15 times out in STEP 18 becomes 30 seconds, the operation control means 11 causes the buzzer 16 to intermittently ring three times, "That the heating operation by" will soon be terminated. Further, in the next STEP 19, the operation control means 11 switches the unit of the remaining time until the timer 15 is timed up to be displayed on the timer time display unit 43 from minutes to seconds.

  Through the subsequent loop consisting of STEP 21 and STEP 22, the operation control means 11 updates the remaining time until the timer 15 displayed on the timer time display unit 43 expires at STEP 21, while the timer 15 expires at STEP 22. wait.

  Then, when the timer 15 times out in STEP 22, the process proceeds to STEP 23, and the operation control means 11 sounds the buzzer 16 once and displays “0” on the timer time display unit 43 in STEP 24 to the user. The end of the heating operation in the “heat retention mode” is notified. Then, in the next STEP 23, the operation control means 11 closes the original electromagnetic valve 20, extinguishes the gas burner 3, and finishes the heating operation in the “heat retention mode”.

  Next, according to the flowchart shown in FIG. 3, the control procedure of the heating operation by the operation control means 11 in the “boiling timer mode” will be described. When the “boiling timer mode” is set, the operation control means 11 sets the initial value of the time-up time of the timer 15 to 0 minutes in STEP 40, and displays “0” on the timer time display unit 43 in STEP 41. The configuration in which the operation control means 11 sets the time-up time of the timer 15 to 0 minutes in STEP 40 corresponds to the timer initial setting means of the present invention.

  Then, the operation control means 11 executes a loop consisting of the following STEP 42 and STEP 43 and confirms whether or not the + key switch 41 and the −key switch 42 are operated in STEP 42, and the cooked food 2 is detected by the boiling detection means 12 in STEP 43. Wait for boiling to be detected. When the + key switch 41 or the −key switch 42 is operated in STEP42, the operation branches to STEP60, and the operation control means 11 sets the timer time of the timer 15 in accordance with the operation of the + keyswitch 41 or the −key switch 42. In step 61, the timer time display unit 43 displays the changed time-up time.

  Accordingly, the user can visually recognize the time-up time displayed on the timer time display unit 43 and set the time-up time in a predetermined range (for example, 0 to 60 minutes, corresponding to the predetermined time range of the present invention). ) Can be set arbitrarily. Further, the user can change the heating amount of the gas burner 3 by rotating the button switch 30 to change the opening degree of the heating amount adjusting valve 21.

  On the other hand, when the boiling detection means 12 detects the boiling of the food 2 in STEP 43, the operation proceeds to STEP 44, and the operation control means 11 causes the buzzer 16 to intermittently sound three times to let the user boil the food 2. The timer 15 is started at the subsequent STEP 45.

  Here, unlike the case of the above-described “heat retention mode”, the operation control means 11 does not perform a process of turning off the bypass electromagnetic valve 7 (closing the valve) to reduce the heating amount of the gas burner 3. Therefore, the ignition state in which the bypass solenoid valve 7 is opened is maintained until the heating operation in the “boiling timer mode” is completed. Note that the heating amount of the gas burner 3 at the time point when boiling is detected in STEP 43 corresponds to the heating amount when boiling is detected in the present invention.

  In the present embodiment, when the user starts the heating operation in the “boiling timer mode”, the maximum level at which the heating amount of the gas burner 3 can be set by the heating amount control valve 21 by rotating the button switch 30 in advance. It can be set nearby. Then, the boiling of the food 2 is recognized by the notification by the buzzer 16 in STEP 44, and when the pasta is put into the food 2 (here, hot water), for example, the heating amount by the gas burner 3 is maintained near the maximum level. You can boil pasta as it is. Further, as described above, the user can arbitrarily set the time-up time of the timer 15 by operating the + key switch 41 and the − key switch 42.

  For this reason, when the required time from when these objects to be heated are put into boiling water until cooking is completed, such as pasta, instant noodles, and retort packs, is specified by the user. The time can be set according to the time-up time of the timer 15.

  Next, the operation control means 11 executes a loop composed of STEP 46 and STEP 47, and updates the display of the remaining time of the timer 15 on the timer time display unit 43 in STEP 46, while the timer 15 remains in the time until the time is up in STEP 47. Wait for the time to reach 30 seconds. Then, when the remaining time until the timer 15 times out in STEP 47 is 30 seconds, the operation control means 11 causes the buzzer 16 to intermittently sound three times in STEP 48 and asks the user “ Notify that the heating operation in the “boiling timer mode” will be finished soon. Further, in the next STEP 49, the operation control means 11 switches the unit of the remaining time until the timer 15 is displayed on the timer time display unit 43 from minutes to seconds.

  In the subsequent loop consisting of STEP50 and STEP51, the operation control means 11 updates the remaining time until the timer 15 displayed on the timer time display unit 43 expires in STEP50, while the timer 15 expires in STEP51. wait.

  Then, when the timer 15 times out in STEP 51, the process proceeds to STEP 52, and the operation control means 11 causes the buzzer 16 to ring once and displays “0” on the timer time display unit 43 in STEP 53. Is notified of the end of the heating operation in the “boiling timer mode”. Then, in the next STEP 54, the operation control means 11 closes the original solenoid valve 20, extinguishes the gas burner 3, and ends the heating operation in the “boiling timer mode”.

  In addition, in this Embodiment, although the gas stove A provided with the gas burner 3 was shown as a heating cooker of this invention, it was equipped with other types of heating means, such as an electric stove, and also with respect to a heating cooker. Applicable.

  In the present embodiment, the initial value of the timer 15 time-up time in the “boiling timer mode” is set to 0 minutes in STEP 40 of FIG. 3, and cooking is performed when the user does not set the timer 15 time-up time. The cooking is finished when the boiling of the object is detected, but the effect of the present invention can be obtained even when the initial value of the time-up time of the timer 15 is other than 0 minutes.

  In the present embodiment, as shown in FIG. 3, when boiling is detected in the “boiling timer mode” (STEP 43), the heating amount of the gas burner 3 is maintained at the heating amount at the time of boiling detection, and STEP 44 Although the subsequent processing is performed, the processing after STEP 44 may be performed by setting the heating amount at the time of boiling detection or more.

  In the present embodiment, an example in which the electric heating amount adjusting valve 21 is used as the heating amount changing means of the present invention has been shown. However, as shown in FIG. 3, boiling is detected in the “boiling timer mode”. (STEP 43), when the processing after STEP 44 is performed while maintaining the heating amount of the gas burner 3 at the heating amount at the time of boiling detection, a manual heating amount control valve that is operated by the user's operating force may be used. good.

The block diagram of the gas stove which is the heating cooker of this invention. The flowchart which showed the operation | movement procedure in the heat retention mode of the gas stove shown in FIG. The flowchart which showed the operation | movement procedure in the boiling timer mode of the gas stove shown in FIG.

Explanation of symbols

  A ... gas stove, 1 ... cooking container, 2 ... cooked food, 3 ... gas burner, 5 ... gas supply pipe, 6 ... bypass pipe, 7 ... bypass solenoid valve, 8 ... temperature sensor, 9 ... controller, 11 ... operation control means, DESCRIPTION OF SYMBOLS 12 ... Boiling detection means, 13 ... Display control means, 14 ... Notification control means, 15 ... Timer, 21 ... Heating amount adjustment valve, 30 ... Button switch, 40 ... Operation panel, 41 ... Key switch, 42 ... Key switch , 43 ... Timer time display section, 44 ... Mode selector switch

Claims (3)

A heating means for heating the cooked food, a heating amount changing means for changing the heating amount of the heating means, a boiling detection means for detecting boiling of the cooked food, and when the boiling of the cooked food is detected by the boiling detection means Boiling notifying means for notifying to, a timer for starting the time when the boiling of the food is detected by the boiling detecting means, and a time-up time which is a time from when the timer starts to time up Timer time setting means for arbitrarily setting the time within a predetermined time range, timer time display means for displaying the time-up time,
The heating amount of the heating means is maintained to be equal to or higher than the heating amount at the time of boiling detection by the heating amount changing means until the timer expires after the timer starts counting by the boiling detection of the food by the boiling detection means. And a heating control means for performing a boiling timer operation for stopping the heating means when the timer expires.   The heating control means adjusts the heating amount of the heating means when the boiling time is detected by the heating amount changing means until the timer times out after the timer starts counting by the boiling detection of the food by the boiling detection means. The heating cooker according to claim 1, wherein the heating amount is maintained at a predetermined value. Boiling timer operation start instruction means for instructing start of the boiling timer operation;
The timer initial setting means for setting the time-up time of the timer to 0 when the start of the boiling timer operation is instructed by the boiling timer operation start instructing means. 2. The cooking device according to 2.

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