JP2004337579A - Rice cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rice cooker displaying the initial value of residual time of rice cooking displayed after the start of rice cooking, with an appropriate value adjusted to the actual use condition of a user regarding the rice cooker displaying the residual time of rice cooking up to the end of rice cooking. <P>SOLUTION: A pot 1 for putting rice and water is heated by a heating means 2, and the heating means 2 is controlled by a control means composed of a microcomputer 3, according to a prescribed rice cooking sequence. The residual time of rice cooking up to the end of rice cooking is clocked by a residual time clocking means composed of the microcomputer 3, and the initial value of the residual time of rice cooking is computed by a residual time computing means composed of the microcomputer 3. The residual time computing means computes the initial value of residual time of rice cooking for the next rice cooking from the result of preceding rice cooking operation. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a rice cooker for displaying the remaining rice cooking time until the end of rice cooking.

  Conventionally, a rice cooker that displays the remaining rice cooking time displays the remaining rice cooking time as a guide to the end of the rice cooking on the remaining time display means while starting the rice cooking, and with the lapse of time, the remaining rice cooking time to a predetermined time, for example, The subtraction is performed in units of one minute, and the remaining time correcting means corrects the remaining cooking time in a shortening direction as the cooking of rice proceeds (for example, see Patent Document 1).

  The time required for rice cooking depends on factors such as the amount of rice cooked, water temperature, and power supply voltage fluctuations. Become. This is because the time to be performed in the cooking step of cooking varies depending on the amount of cooked rice.

In this way, when correcting the remaining rice cooking time in the shortening direction, when the rice cooking is started and the display of the remaining rice cooking time is started, for example, a longer time in consideration of an assumed maximum cooking time such as a maximum rice cooking amount. Was set as an initial value.
JP-A-10-15300 (page 3-8, FIG. 1)

  However, in such a conventional configuration, since the display of the remaining rice cooking time is started from an initial value set in advance, some users are affected by the amount of rice cooked, and as a result, the rice cooking time is shortened and corrected. However, there is a problem that the rice cannot be cooked according to the remaining rice cooking time indicated in (1).

  An object of the present invention is to solve the above-mentioned conventional problems, and an object of the present invention is to provide a rice cooker that displays an initial value of the remaining rice cooking time displayed after the start of rice cooking with an appropriate value according to the actual use of the user. .

  In order to achieve the above object, the present invention heats a pot into which rice or water is placed by a heating means, controls the heating means in accordance with a predetermined rice cooking sequence by a control means, and counts the remaining rice cooking time until the end of the rice cooking. It is configured to measure the time by the means and calculate the initial value of the remaining cooking time by the remaining time calculating means, and the remaining time calculating means calculates the initial value of the remaining cooking time of the next rice cooking from the result of the previous cooking operation. It was made.

  With this, when the rice cooking is started, the remaining rice cooking time, which reflects the result of the previous rice cooking, can be set as the initial value, so that the initial value of the remaining rice cooking time displayed after the start of the rice cooking can be adjusted according to the actual usage of the user. Time can be displayed as an initial value.

  The rice cooker of the present invention can set the remaining rice cooking time, which reflects the result of the previous rice cooking, as the initial value when the rice cooking is started. The combined cooking remaining time can be set as an initial value and displayed.

  A first invention is a pot for putting rice or water, a heating means for heating the pot, a control means for controlling the heating means in accordance with a predetermined rice cooking sequence, and a remaining time for measuring the remaining rice cooking time until the end of rice cooking. A timer means, and a remaining time calculating means for calculating an initial value of the remaining rice cooking time, wherein the remaining time calculating means calculates an initial value of the remaining cooking time of the next rice cooking from a result of the previous rice cooking operation. When rice cooking is started, the remaining rice cooking time, which reflects the result of the previous rice cooking, can be set as the initial value, so the initial value of the remaining rice cooking time displayed after the start of rice cooking is adjusted to the actual use of the user. The remaining cooking time can be set and displayed as an initial value.

  According to a second invention, in the first invention, the remaining time calculation means constitutes a required time storage means for storing a required rice cooking time required for the rice cooking. Since the time required for cooking rice is stored, the time can be set as an initial value.

  In a third aspect based on the first aspect, the remaining time calculating means stores the required rice cooking time required for rice cooking at least twice, calculates from the stored required rice cooking time, and sets the initial value of the remaining rice cooking time. The required time calculating means is configured to calculate the required time. When the rice cooking is started, the required time calculating means appropriately calculates the next remaining rice cooking time from the required cooking time measured twice or more, and calculates the calculated value as the remaining rice cooking time. It can be set as the initial value of time.

  In a fourth aspect based on the first aspect, the remaining time counting means initializes the value calculated by the remaining time calculating means if the last cooked rice menu is the same as the current cooked menu at the start of cooking. The value is set as a value, and the cooked rice menu is checked at the time of starting the cooked rice, and the initial value of the remaining cooked rice time calculated by the remaining time calculation means can be set only when the menu is the same as the previous menu.

  According to a fifth aspect of the present invention, in the first aspect, a current time counting means for counting a current time is provided. The value calculated by the remaining time calculation means is set as an initial value, and the time zone in which rice is cooked at the start of rice cooking is checked, and the remaining time calculation means calculates only when the time zone is the same as the last time. The initial value of the remaining cooking time can be set.

  In a sixth aspect based on the first aspect, the remaining time calculation means constitutes a cooked rice quantity storage means for storing the cooked rice quantity, and when the rice cooking is started, the cooked rice quantity storage means causes the last cooked rice to be cooked. Since the amount is stored, an initial value of the remaining time can be calculated and set from the amount of cooked rice.

  In a seventh aspect based on the sixth aspect, the cooked rice amount storage means constitutes a rise time storage means for measuring and storing a rise time until a predetermined temperature is reached, and stored in the rise time storage means. The amount of rice cooked in the previous rice cooking can be estimated by referring to the rising time that has been set, and the initial value of the remaining time can be calculated and set from the amount of rice cooked.

  In an eighth aspect based on the sixth aspect, the rice cooking amount storage means stores the rising time until the predetermined temperature is reached at least twice, calculates from the stored rising time, and sets the initial value of the remaining rice cooking time. The rising time calculation means for calculating the rice cooking time can be set, and when the rice cooking is started, the initial value of the remaining rice cooking time can be set based on the calculated value calculated from the rising time stored plural times by the rising time calculation means. .

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited by the embodiment.

(Embodiment 1)
As shown in FIG. 1, the pot 1 is filled with cooking materials such as rice and water, and is heated by the heating means 2. The heating means 2 includes an induction coil 21 and an inverter circuit 22. The inverter circuit 22 supplies a high-frequency current to the induction coil 21 so as to heat the pot 1 by induction. The temperature sensor 11 detects the temperature of the pot 1 and inputs it to the microcomputer 3.

  The microcomputer 3 constitutes a control means for controlling the heating means 2 in accordance with a predetermined sequence. When there is an input from the start switch 5, the microcomputer 3 starts the rice cooking operation and preliminarily uses the input values of the internal timer and the temperature sensor 11. In accordance with the stored rice cooking sequence, a dipping step of absorbing water in the rice, a cooking step of cooking, and a drying step of performing spotting after cooking are performed in this order, and the heating operation of the heating means 2 is controlled.

  The microcomputer 3 also has a function of a remaining time counting means for counting the remaining rice cooking time until the end of the rice cooking, and starts counting the remaining rice cooking time, which is a guideline until the rice cooking is completed, together with the start of the rice cooking operation. The measured remaining rice cooking time is displayed on the liquid crystal display device 4. As shown in FIG. 2, the liquid crystal display device 4 can perform display in units of one minute. The display is subtracted about every one minute, and when this time reaches 0, rice cooking is terminated. Since the subtraction is performed about every one minute, for example, when "5 minutes" is displayed, the remaining time from the remaining five minutes to four minutes and one second is indicated.

  Further, the microcomputer 3 also has a function of a remaining time calculating means for calculating an initial value of the remaining rice cooking time, and the remaining time calculating means includes a required time storing means for storing required rice cooking time required for cooking rice. Make up.

  By operating the menu selection switch 6 before operating the start switch 5, rice cooking can be started with an arbitrary rice cooking menu that has been set.

  The rice cooking sequence performed by the control means will be described with reference to FIG. In FIG. 3, the horizontal axis is a time axis, and proceeds from left to right. The vertical axis is the temperature detected by the temperature sensor 11.

  First, when rice cooking is started, a dipping process is started, and the microcomputer 3 outputs a heating signal to the heating means 2 to heat and maintain the temperature to a predetermined temperature. This is to raise the water temperature in the pot 1 and allow the rice to sufficiently absorb water. After a lapse of a predetermined time, a cooking step is started, and heating by the heating means 2 starts.

  At this time, assuming that the time from the temperature Temp1 to Temp2 is t, t is shorter if the amount of cooked rice is small, and longer if the amount of cooked rice is large. By measuring t in this manner, the amount of cooked rice can be estimated. From the estimated amount of cooked rice, the heating power of the subsequent heating means 2 is calculated and heated.

  Then, when the water content in the pot 1 decreases, the temperature gradually rises, and when Temp3 is detected, the cooking process is ended, and a spotting process is performed. In the spotting step, the heating by the heating means 2 is not performed so much, and the inside of the pan 1 is maintained in a steamed state. Then, after a certain period of time has elapsed from the start of the rice drying process, the rice is ready to be cooked. Assuming that the fixed time is the required time, if the rice cooking is completed in a shorter time than this time, a core remains in the rice.

  Note that the rice cooking sequence to be performed differs depending on the rice cooking menu. For example, a standard “white rice” menu is performed as described above. Since the priority is given to the immersion process, the time for performing the immersion process is shortened.

  The operation of the above configuration will be described with reference to the flowchart of FIG. When the user operates the menu selection switch 6 and the start switch 5 to start cooking rice, first, in steps S1a to S1c, an initial value of the remaining cooking time is set. In step S1a, it is determined whether to cook rice for the first time. If it is the first time, since nothing is stored in the required time storage means, the flow advances to step S1c to set a predetermined time. Here, "45 minutes" is set.

  If it is determined in step S1a that it is not the first rice cooking, the process proceeds to step S1b, and the time stored in the required time storage means is set as an initial value of the remaining rice cooking time. Then, in step S2, the measurement timer for measuring the time required from the start to the end of rice cooking is cleared, and the process proceeds to step S3.

  In step S3, the remaining cooking rice time measured by the remaining time counting means is displayed. In the following step S4, the remaining rice cooking time is determined, and it is determined whether the time from the rice drying process to the end of rice cooking, that is, the required rice drying time, is exceeded. If it exceeds, the process proceeds to step S6, and the remaining rice cooking time is counted, and if it is below, the process proceeds to step S5.

  In step S5, it is further determined whether or not the rice cooking sequence has progressed and the rice cooking sequence has been performed. If it is after the spotting process, the process proceeds to step S6 to measure the remaining rice cooking time. If not, the process skips step S6 and proceeds to step S7. If the rice drying process is not carried out for a certain period of time or more, a core will be formed on the rice after the rice is cooked. In order to prevent this problem, by setting the determination conditions of step S4 and step S5, it is possible to secure the remaining rice cooking time for the required time of the murara at the start of the murara process.

  In step S7, a measurement timer for measuring the time required from the start to the end of rice cooking is clocked. At this time, the time of the clock timer is stopped when the required time for mura has passed after the mura process is started. Then, in step S8, it is determined whether or not the remaining rice cooking time is counted and becomes “0”. If it is not "0", there is remaining cooking time, so the process returns to step S3. If it is "0", the process proceeds to step S9, and the time measured by the measurement timer is stored as the required time of the current rice cooking. Store in the means.

  Thus, the required time for the current rice cooking is stored in the required time storage means, and can be read as the initial value of the remaining rice cooking time at the start of the next rice cooking. The remaining time for rice cooking is adjusted so that it does not fall below the required time at the start of the rice drying process, and the measurement timer stops counting after the required time for the rice drying since the start of the rice drying process. The time until the start of the steaming process is the sum of the time required for steaming, and if the user always has the habit of cooking with a fixed amount of cooked rice, the almost accurate required time is used as the initial value of the remaining cooking time. Can be displayed.

  Note that, in the present embodiment, the timer is stopped when the required time for the lapse of time elapses after the time lag of the measurement timer is started. It can be realized even if you stop. In this case, the sum of the time of the measurement timer and the required time of the muraring measured until the muraizu step is started in the step S9 as the required rice cooking time may be stored in the required time storage means.

  In addition, in the present embodiment, the time required for rice cooking is obtained by operating the measurement timer from the start of rice cooking, but this is performed when the remaining rice cooking time has reached by the start of the washing process, from that time. The time until the mura process starts may be measured. In this case, the initial value of the remaining rice cooking time was shorter than the required time of the original rice cooking. By calculating the sum, the time required for cooking rice can be derived.

  Similarly, when the remaining rice cooking time is longer than the required time for the unevenness at the start of the unevenness step, the difference may be obtained. In this case, the initial value of the remaining rice cooking time was longer than the required time of the original rice cooking. The required time for rice cooking can be derived by subtracting the difference from the required time for spotting.

(Embodiment 2)
The microcomputer 3 shown in FIG. 1 has a function of remaining time calculating means. The remaining time calculating means stores the required rice cooking time required for rice cooking at least twice in a new order, and stores the stored required rice cooking time. The required time calculating means for calculating the average value of the remaining time and calculating as the initial value of the remaining rice cooking time is configured. Other configurations are the same as those in the first embodiment.

  The operation of the above configuration will be described with reference to the flowchart of FIG. Note that the operations from step S2 to step S8 are the same as the operations in the first embodiment, and a description thereof will be omitted.

  When the user operates the menu selection switch 6 and the start switch 5 to start cooking rice, in steps S1d to S1f, first, an initial value of the remaining cooking time is set. In step S1d, it is determined whether or not rice cooking is to be performed for the third time after the start of use. If it is not the third time or later, since the average value is not yet stored in the required time calculation means, the process proceeds to step S1f and a predetermined time is set. Here, “45 minutes” is set.

  If it is determined in step S1d that the rice is to be cooked for the third time or later, the process proceeds to step S1e, and the time stored in the required time calculating means is set as the initial value of the remaining rice cooking time. Then, in step S2, the measurement timer for measuring the time required from the start to the end of rice cooking is cleared, and the process proceeds to step S3.

  In step S8, it is determined whether the remaining rice cooking time has been counted and has reached “0”. If it has not reached “0”, there is a remaining rice cooking time, so the process returns to step S3, and if it has reached “0”, step S10. Proceed to. In step S10, the time measured by the measuring timer is first stored in the required time calculating means as the required time of the current rice cooking, and in the following step S11, the average value of the required time of the current rice cooking and the previous time is calculated. It is stored in the time calculation means.

  In this way, the average value of the time required for the current rice cooking and the time required for the previous rice cooking can be calculated and stored, and can be read as the initial value of the remaining rice cooking time at the start of the next rice cooking. For example, if there is a habit of cooking a large amount of rice in the morning and a large amount of rice in the evening, the time required for rice cooking in the middle is calculated and stored.

  Conventionally, only a predetermined value could be set as the initial value of the remaining rice cooking time, so, for example, if the initial value is set to the maximum rice cooking amount, when cooking a large amount of rice in the evening Although there is no problem, when cooking a small amount in the morning, the time was greatly shifted, but in the case of the rice cooker according to the present embodiment, an intermediate time is allocated, so that even in the morning and evening, even in both cases A certain remaining cooking time can be set as an initial value.

  In the present embodiment, the number of times of averaging is set to two times. However, the number of times of averaging may be more than two.

  Further, in the present embodiment, the calculation of the average value is performed immediately after the completion of the rice cooking, but this may be performed immediately after the start of the next rice cooking. In short, the time required for the current rice cooking is determined, and when the next rice cooking is started, it may be performed until the initial value of the remaining rice cooking time is set.

  Further, in the present embodiment, the averaging process is performed as the calculation of the required time, but another calculation method may be used. In short, the determination of the initial value of the remaining rice cooking time at the next rice cooking time, for example, by estimating statistics, may be any configuration as long as it is calculated and derived from the required time of multiple rice cooking times.

(Embodiment 3)
The microcomputer 3 shown in FIG. 1 has a function of a remaining time counting means. If the rice cooking menu of the previous rice cooking at the start of rice cooking is the same as the current rice cooking menu, the rice cooking time stored in the required time storage means is stored. The required time (the value calculated by the remaining time calculation means) is set as the initial value of the remaining cooking rice time. Other configurations are the same as those in the first embodiment.

  The operation of the above configuration will be described with reference to the flowchart of FIG. The operation from step S2 to step S9 is the same as the operation in the first embodiment, and thus the description is omitted.

  The process of step S0a is added before steps S1a to S1c, and in this step S0a, it is determined whether the rice cooking menu to be performed now is the same as the rice cooking menu performed last time. If they are the same, the process proceeds to step S1a, and the time stored in the required time storage means is set as the initial value of the remaining cooking time. If they are not the same, the process proceeds to step S1c and "45 minutes" is set as the initial value of the remaining cooking time. Set.

  In this way, before setting the remaining rice cooking time, first check the rice cooking menu, and only when the previous and current rice cooking menus are the same, set the time stored in the required time storage means to the initial value of the remaining rice cooking time. The range stored in the required time storage means can be used as the initial value of the remaining cooking time, so that the range in which the time can be used can be limited. For example, it is meaningless to set the time required for cooking rice when cooking using the “white rice high-speed” menu when the “white rice” menu is used this time. In this case, while "45 minutes" is set, the required time of the rice cooked in the "white rice" menu can be stored after the rice is finished.

(Embodiment 4)
The microcomputer 3 shown in FIG. 1 additionally has a function of a current time clocking means for measuring the current time, and when the last cooking time is a predetermined time zone (for example, in the morning) at the start of rice cooking, The value calculated by the remaining time calculation means is set as an initial value. Other configurations are the same as those in the first embodiment.

  The operation of the above configuration will be described with reference to the flowchart of FIG. The operation from step S2 to step S9 is the same as the operation in the first embodiment, and thus the description is omitted.

  The process of step S0b is added before steps S1a to S1c, and in this step S0b, it is determined whether the current time is in a time zone of 5:00 to 8:00. If it is in that time zone, it means that it is now the "morning" time zone, so the process proceeds to S1a, and the time stored in the required time storage means is set as the initial value of the remaining cooking time. Proceeding to S1c, "45 minutes" is set as the initial value of the remaining rice cooking time.

  As described above, before setting the remaining rice cooking time, first, the time period for cooking rice is checked, and only when the time period is the same, the time stored in the required time storage means is set to the initial value of the remaining cooking rice time. If, for example, there is a habit of cooking a large amount in the morning and a large amount in the evening, it is possible to always set the remaining rice cooking time suitable for the small amount in the morning.

(Embodiment 5)
The microcomputer 3 shown in FIG. 1 has a function of a remaining time calculating means, and this remaining time calculating means constitutes a rice cooking amount storing means for storing a rice cooking amount. A rising time storage means for storing the rising time t from Temp1 to Temp2, calculating the stored rising time, and calculating as the initial value of the remaining rice cooking time. Other configurations are the same as those in the first embodiment. The rising time t becomes shorter when the amount of cooked rice is small, and becomes longer when the amount of cooked rice is large. That is, the storage of the rising time t is equivalent to the storage of the amount of cooked rice.

  The operation of the above configuration will be described with reference to the flowchart of FIG. The operation from step S3 to step S8 is the same as the operation in the first embodiment, and thus the description is omitted.

  When the user starts the rice cooking by operating the menu selection switch 6 and the start switch 5, first, in steps S12a to S12f, an initial value of the remaining rice cooking time is set. In step S12a, it is determined whether to cook rice for the first time. If this is the first time, since nothing is stored in the rise time storage means, the process proceeds to step S12f and "45 minutes" is set.

  If it is determined in step S12a that the rice is not cooked for the first time, the process proceeds to step S12b, and the rising time stored in the rising time storage unit is determined. If the rise time is 60 seconds or less, the process proceeds to step S12d, and “39 minutes” is set. Otherwise, the process proceeds to step S12c, and it is determined whether the rise time is 120 seconds or less. If it is equal to or shorter than 120 seconds, the process proceeds to step S12e, and “42 minutes” is set. Otherwise, the process proceeds to step S12f, and “45 minutes” is set. When the setting of the remaining cooking time is completed in steps S12d to S12f, the process proceeds to step S3, and the remaining cooking time is displayed.

  In step S8, it is determined whether the remaining rice cooking time has been counted and has reached “0”. If the remaining rice cooking time has not reached “0”, there is a remaining rice cooking time, so the process returns to step S3. Proceed to. In step S13, the rising time t for the current rice cooking is stored in the rising time storage means.

  As described above, the rising time in the current rice cooking is stored in the rising time storage means, and the rising time can be determined at the start of the next rice cooking, and the initial value of the remaining rice cooking time can be calculated. In the present embodiment, if the stored rising time is 60 seconds or less, it is determined that a relatively small amount of rice was cooked during the previous rice cooking, and “39 minutes” is set. Is set to “42 minutes”, and if it exceeds 120 seconds, it is determined to be a large amount and “45 minutes” is set. Initial values can be set.

  Further, since the rising time equivalent to the amount of cooked rice is stored, even if the rice cooking menu executed this time is different from the rice cooking menu performed this time, the storage of the rising time can be used to set the initial value of the remaining rice cooking time. For example, the memory of the rising time cooked in the “white rice” menu last time can be used as the calculation of the initial value of the remaining rice cooking time in the current “white rice high-speed” menu.

  In this embodiment, the rising time is stored, but the rising time is converted into the amount of cooked rice and stored, and the remaining cooking time is calculated based on the converted amount of cooked rice at the start of cooking. You can, of course, do it.

(Embodiment 6)
The microcomputer 3 shown in FIG. 1 has a function of a remaining time calculating means, and this remaining time calculating means constitutes a rice cooking amount storing means for storing a rice cooking amount. The rising time t from Temp1 to Temp2 is stored at least twice in a new order, the average value of the stored rising times is calculated, and the rising time calculating means for calculating the initial value of the remaining cooking time is constituted. Other configurations are the same as those in the first embodiment.

  The operation of the above configuration will be described with reference to the flowchart of FIG. The operation from step S3 to step S8 is the same as the operation in the first embodiment, and thus the description is omitted.

  When the user operates the menu selection switch 6 and the start switch 5 to start cooking rice, first, in steps S12g to S121, an initial value of the remaining cooking time is set. In step S12g, it is determined whether or not to cook rice for the third and subsequent times after starting use. If it is not the third time or later, since the average value has not yet been stored in the rising time calculation means, the process proceeds to step S121 and "45 minutes" is set.

  If it is determined in step S12g that the rice has been cooked for the third time or later, the process proceeds to step S12h, and the average rising time stored in the rising time calculating means is determined. If the average rise time is 60 seconds or less, the process proceeds to step S12j, and “39 minutes” is set. Otherwise, the process proceeds to step S12i to determine whether the average rise time is 120 seconds or less. If it is equal to or shorter than 120 seconds, the flow proceeds to step S12k, and “42 minutes” is set. Otherwise, the flow proceeds to step S121, and “45 minutes” is set. When the setting of the remaining cooking time is completed in steps S12g to S12l, the process proceeds to step S3, and the remaining cooking time is displayed.

  In step S8, it is determined whether the remaining rice cooking time has been counted and has reached “0”. If the remaining rice cooking time has not reached “0”, there is a remaining rice cooking time, so the process returns to step S3, and if the remaining rice cooking time has reached “0”, step S14. Proceed to. In step S14, the rising time t in the current rice cooking is first stored in the rising time calculating means as the rising time of the current rice cooking, and in the following step S15, the average value of the rising time of the current rice cooking and the previous time is calculated. Is stored in the rise time calculating means.

  In this manner, the average rise time, which is the average value of the rise time in the current rice cook and the rise time in the previous rice cook, is calculated and stored, and the rise time is determined at the start of the next rice cook, and the remaining rice cook time is determined. Can be calculated. For example, if there is a habit of cooking a large amount of rice in the morning and a large amount of rice in the evening, an intermediate rise time is calculated and stored as an average rise time.

  Conventionally, only a predetermined value could be set as the initial value of the remaining rice cooking time, so, for example, if the initial value is set to the maximum rice cooking amount, when cooking a large amount of rice in the evening Although there is no problem, when cooking a small amount in the morning, the time was greatly shifted, but in the case of the rice cooker according to the present embodiment, an intermediate time is allocated, so that even in the morning and evening, even in both cases A certain remaining cooking time can be set as an initial value.

  As described above, when the rice cooker according to the present invention starts cooking, the remaining rice cooking time reflecting the result of the previous rice cooking can be set as the initial value, and the remaining rice cooking time according to the actual use of the user is set to the initial value. This is useful as a rice cooker for displaying the remaining rice cooking time until the end of rice cooking.

Block diagram of a main part of a rice cooker according to a first embodiment of the present invention Enlarged front view of remaining time display means of the rice cooker Time chart showing the rice cooking sequence of the rice cooker Operation flowchart of the rice cooker Operation flowchart of the rice cooker according to the second embodiment of the present invention Operation flowchart of the rice cooker according to the third embodiment of the present invention Operation flowchart of the rice cooker according to the fourth embodiment of the present invention Operation flowchart of the rice cooker according to the fifth embodiment of the present invention Operation flowchart of the rice cooker according to the sixth embodiment of the present invention

Explanation of reference numerals

1 pan 2 heating means 3 microcomputer (control means, remaining time measuring means, remaining time calculating means)

Claims (8)

A pot for putting rice and water, a heating means for heating the pot, a control means for controlling the heating means in accordance with a predetermined rice cooking sequence, a remaining time counting means for counting the remaining rice cooking time until the end of cooking, A rice cooker comprising remaining time calculation means for calculating an initial value of time, wherein the remaining time calculation means calculates an initial value of the remaining cooking time for the next rice cooking from the result of the previous rice cooking operation. 2. The rice cooker according to claim 1, wherein the remaining time calculation means comprises a required time storage means for storing a required rice cooking time required for rice cooking. 2. The required time calculating means for storing the required rice cooking time required for cooking rice at least twice, calculating from the stored required rice cooking time, and calculating an initial value of the remaining rice cooking time. Rice cooker. 2. The rice cooker according to claim 1, wherein the remaining time counting means sets the value calculated by the remaining time calculation means as an initial value if the rice cooked menu prepared last time is the same as the rice cooked menu currently performed at the start of rice cooking. vessel. The current time clocking means for measuring the current time is provided, and the remaining time clocking means uses the value calculated by the remaining time calculating means as an initial value if the time of the previous rice cooking at the start of cooking is common to the time zone to be performed this time. The rice cooker according to claim 1, wherein the rice cooker is set. 2. The rice cooker according to claim 1, wherein the remaining time calculating means comprises a cooked rice amount storing means for storing the cooked rice amount. 7. The rice cooker according to claim 6, wherein the rice cooked amount storage means comprises a rise time storage means for measuring and storing a rise time until a predetermined temperature is reached. 7. The rice cooking amount storage means comprises rising time calculation means for storing the rising time until reaching a predetermined temperature at least twice, calculating from the stored rising time, and calculating an initial value of the remaining rice cooking time. Rice cooker as described.

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