JP3312327B2 - rice cooker - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice cooker using, for example, induction heating, and more particularly to a rice cooker capable of displaying the elapsed time of warming on a display for displaying the current time while keeping warm after cooking rice. is there.

[0002]

2. Description of the Related Art In recent rice cookers, when a cooker key is pressed, a preheating step is performed in which rice is preheated at a constant temperature for a predetermined time so as to absorb water sufficiently, and then a rice cooking step of cooking rice is performed. Thereafter, a steaming step of steaming the rice is performed, and a control is performed such that a warming step of keeping the finally cooked rice at a constant temperature is performed.

FIG. 19 is a time chart showing a display state of a current time and a warming elapsed time in a process from a preheating of a conventional rice cooker to a warming through a rice cooker described in, for example, JP-A-60-24809. Such a conventional rice cooker,
A time display section is provided on an operation panel of the rice cooker main body, and a heat retention timer section for displaying an elapsed time from the start of heat retention on the time display section is provided. Therefore, the elapsed time is displayed on the time display section of the operation panel every hour from the start of the heat retention, for example, 1H, 2H, etc., so that it is possible to easily know the heat retention elapsed time which is a measure for measuring the deterioration state of the rice. Because you can, you can eat delicious food. FIG.
Numeral 0 is a time chart showing a display state of the current time in a process from the preheating of another conventional rice cooker to the warming through rice cooking. In such a conventional rice cooker, only the current time is displayed, and the elapsed heat retention time is not displayed.

[0004]

In the above-described conventional rice cooker, the elapsed time is displayed on the time display section of the operation panel every hour from the start of heat retention, for example, 1H or 2H. There was a problem that the clock function was not exhibited because it was not displayed. Another conventional rice cooker as described above has only a display of the current time, and thus has a problem in that the elapsed time of heat retention cannot be known.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and provides a rice cooker capable of displaying not only the current time on the time display section of the operation panel but also the elapsed time during the heat retention. The purpose is to:

[0006]

According to a first aspect of the present invention, there is provided a vacuum cleaner having a heating means for heating an inner pot, a heating control means for controlling heating of the heating means, and a cancel key for canceling a heat retaining step. A warming key for starting the warming process, clock means for measuring the time and outputting a clock signal, timer means for measuring the warming elapsed time and outputting a timer signal, and a display device for displaying the current time or the warming elapsed time When the warming step is started, the timer means is started, a warming start signal is output, and a heating control signal for stopping the warming step being executed based on the operation of the cancel key is output to the heating control means. Control means for outputting to the heating control means a heating control signal for executing the heat keeping step based on the operation of the heat keeping key thereafter, and receiving the time signal of the clock means to display the current value on the display device. Displaying the time, receiving the warming start signal from the control means, displaying the warming elapsed time on the display device, receiving the canceling signal from the cancel key, displaying the current time on the display device, receiving the canceling signal from the cancel key, and subsequently operating the warming key. Display control means for performing display control so that the display device displays the current time based on the clock signal of the clock means even when the display device receives the time signal.

[0007]

[0008]

[0009]

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 is a block diagram illustrating a configuration of a rice cooker according to Embodiments 1 to 4 of the present invention, FIG. 2 is an explanatory diagram of an operation display panel of the rice cooker according to Embodiments 1 to 4, and FIG. 4 is a time chart. . In the figure, 1 is an operation display panel of a rice cooker, 2 is a rice cooker key which outputs an ON signal by a pressing operation to start a cooking process from preheating to heat retention, and 3 is an O by a pressing operation.
An insulation key that outputs the N signal to start the insulation process,
Reference numeral 4a denotes a display switching key for switching between the heat retention elapsed time and the current time during the heat retention, and functions as a current time adjustment key when the rice cooker is not used. 4b is a time setting key in the case of current time correction, and 4c is a minute setting key in the case of current time correction. 5 is a display device for displaying the current time 5a or the warming elapsed time 5b, 6 is a rice cooker LED made of a light emitting diode, and 7 is a warming LE made of a light emitting diode.
D. As shown in FIG. 2, the operation display panel 1 is provided with a rice cooker key 2 to a warming LED 7.

Reference numeral 8 denotes a heating coil which is a heating means for heating the inner pot of the rice cooker, 9 denotes a heating control means for controlling the induction heating of the heating coil 8, 10 denotes a preheating for a predetermined preheating time, and thereafter, in a predetermined rice cooking step. A cooking memory that stores a cooking process in which rice is cooked, and then further heats up for a predetermined period of time, and then enters a heat-retention mode. Reference numeral 11 denotes a heating control signal for performing cooking control based on an ON signal from the rice cooking key 2. The control means for outputting to the heating control means 9 is a display device 5 and a rice cooking LED 6.
A display control means for controlling the display of the warming LED 7; a clock means 13 for measuring the current time; and a timer means 14 for measuring the elapsed time of the warming in response to a timer start signal.

Next, the display operation of the present time and the heat retention elapsed time in the steps from the preheating of the rice cooker to the heat retention through the rice cooking according to the first embodiment of the present invention will be described with reference to the flow charts of FIGS. 1 and 3 and the time chart of FIG. It will be described based on. Regardless of whether or not a power plug (not shown) of the rice cooker is inserted into the outlet, the display device 5 receives the time signal from the clock device 13 and displays the current time 5 by the display control device 12.
a is displayed. Therefore, the rice cooker key 2 is first pressed and operated (S1), and an ON signal of the rice cooker key 2 is input to the display controller 12 via the controller 11. The display control means 12 controls the rice cooking LE based on the ON signal of the rice cooking key.
D6 is turned on (S2).

The control means 11 calls up the cooking process from the cooking memory 10 based on the ON signal of the rice cooker key 2 and outputs a heating control signal for executing the called cooking process to the heating control means 9 to control the heating. The means 9 controls the heating of the heating coil 8 by induction heating, firstly starts preheating, then cooks rice, and then starts to keep warm after the steaming (S).
3-S6). The control means 11 outputs a heat retention start signal to the display control means 12 when the heat retention is started. The display control means 12 having received the warming start signal turns off the rice cooking LED 6, and
The heat retention LED 7 is turned on (S7).

Further, the control means 11 starts the timer means 14 in response to the timer start signal at the same time as the start of the heat retention (S8), and the timer signal of the timer means 14 is inputted to the display control means 12. When the timer signal from the timer means 14 is input, the display control means 12
Is displayed on the display device 5 prior to the clock signal of (S) based on the timer signal of the timer means 14 (S
9). Then, when the display switching key 4a is pressed,
An ON signal is input to the display control means 12 only during the pressing operation (S10). While the display control means 12 receives the ON signal of the display switching key 4a, the display means 5 gives the display means 5 priority over the timer signal of the timer means 14 this time.
The current time 5a based on the time signal 3 is displayed (S1).
1). Then, when the pressing operation of the display switching key 4a is released, the ON signal of the display switching key 4a is no longer input to the display control means 12, and the process returns to step 9 again to give priority to the clock signal of the clock means 13 and the display device. 5 to timer means 14
Is displayed based on the timer signal.

As described above, during the warming process in the cooking process, the display device 5 usually displays the warming elapsed time 5b.
Is displayed, it is possible to know the elapsed time of the heat retention. When the user wants to know the current time, when the display switching key 4a is pressed, the current time 5a is displayed on the display device 5 only during the pressing operation. By pressing the display switching key 4a, the current time can be known.

Next, the operation of displaying the current time and the elapsed time when the warming process is started by operating the warming key 3 will be described with reference to the flowchart of FIG. First,
The operation starts when the heat keeping key 3 is pressed (S21), and an ON signal of the heat keeping key 3 is input to the display control means 12 via the control means 11. The control means 11 turns on the heat keeping key 3
From the cooking memory 10 based on the signal, of the cooking process, the warming process excluding the preheating process and the rice cooking process is called,
A heating control signal for executing the called warming process is output to the heating control means 9, and the heating control means 9 controls the heating of the heating coil 8 by induction heating to start the warming (S22). Further, the control means 11 outputs a heat retention start signal to the display control means 12 when the heat retention is started, and the display control means 12 which has received the heat retention start signal turns on the heat retention LED 7 (S23).

Further, the control means 11 starts the timer means 14 in response to the timer start signal at the same time as the start of the heat retention (S24), and the timer signal of the timer means 14 is inputted to the display control means 12. When the timer signal of the timer means 14 is input, the display control means 12
The timer means 14 is displayed on the display device 5 in preference to the clock signal of FIG.
Of the heat retention elapsed time 5b based on the timer signal (S)
25). Therefore, when the display switching key 4a is pressed, an ON signal is input to the display control means 12 only during the pressing operation (S26). While receiving the ON signal of the display switching key 4a, the display control means 12 displays the current time 5a based on the clock signal of the clock means 13 on the display device 5 prior to the timer signal of the timer means 14. (S
27). Then, when the pressing operation of the display switching key 4a is released, the ON signal of the display switching key 4a is not input to the display control means 12, and the process returns to step 25 and again takes precedence over the clock signal of the clock means 13 to the display device. 5 shows the elapsed time 5b based on the timer signal from the timer means 14.

As described above, even when the heat retaining process is started from the beginning, the display device 5 normally displays the heat retaining elapsed time 5b.
Is displayed, it is possible to know the elapsed time of the heat retention. When the user wants to know the current time, when the display switching key 4a is pressed, the current time 5a is displayed on the display device 5 only during the pressing operation. By pressing the display switching key 4a, the current time can be known.

Embodiment 2 The configuration of the second embodiment of the present invention is shown in FIG. 1, and the description of the configuration will be omitted. Next, the display operation of the current time and the elapsed time of the heat retention in the process from the preheating of the rice cooker to the heat retention through the rice cooking according to the second embodiment of the present invention will be described with reference to the flowcharts of FIGS. 1 and 6 and the time chart of FIG. explain. In the second embodiment, steps S1 to S8 are the same as those in the first embodiment, and a description of the operation will be omitted. In step S9, the control means 11 starts the timer means 14 by the timer start signal at the same time as the start of the heat retention, and even if the timer signal is input to the display control means 12, the display control means 12 The current time 5a based on the clock signal of the clock means 13 is displayed on the display device 5 prior to the signal.

Therefore, when the display switching key 4a is pressed, an ON signal is output only during the pressing operation.
(S10). While receiving the ON signal of the display switching key 4a, the display control means 12 displays the elapsed time 5b of the heat retention based on the timer signal of the timer means 14 on the display device 5 prior to the clock signal of the clock means 13 in reverse. (S11). When the pressing operation of the display switching key 4a is released, the display control means turns on the display switching key 4a.
The signal is no longer input, and the process returns to step 9 to display the current time 5a based on the clock signal of the clock means 13 again prior to the timer signal of the timer means 14.

As described above, during the warming process in the cooking process, the current time 5a is normally displayed on the display device 5 so that the current time can be known. When the switch key 4a is pressed, the elapsed time 5b is displayed on the display device 5 only during the pressing operation, so that the user can know the elapsed time by pressing the display switch key 4a.

Next, the operation of displaying the current time and the elapsed time when the warming process is started by operating the warming key 3 will be described with reference to the flowchart of FIG. First,
The operation starts when the heat keeping key 3 is pressed (S21), and the ON signal of the heat keeping key 3 is sent to the control means 11 and the display control means 12
Entered as The control means 11 controls the cooking process from the cooking memory 10 based on the ON signal of the heat retention key 3.
The warming process excluding the preheating process and the rice cooking process is called, and a heating control signal for executing the called warming process is output to the heating control means 9. The heating control means 9 controls the induction heating of the heating coil 8 to start the warming. It enters (S22). Further, the control means 11 outputs a heat retention start signal to the display control means 12 when the heat retention is started, and the display control means 12 which has received the heat retention start signal turns on the heat retention LED 7 (S23).

Further, the control means 11 starts the timer means 14 in response to the timer start signal at the same time as the start of the heat retention (S24), and the timer signal of the timer means 14 is inputted to the display control means 12. When the timer signal of the timer unit 14 is input, the display control unit 12 gives priority to the timer signal of the timer unit 14 and displays the clock unit 1 on the display device 5.
The current time 5a based on the clock signal of No. 3 is displayed (S2
5). Then, when the display switching key 4a is pressed,
An ON signal is input to the display control means 12 only during the pressing operation (S26). While receiving the ON signal of the display switching key 4a, the display control means 12 reverses the operation of the clock means 1 this time.
The timer means 14 is displayed on the display device 5 prior to the time signal of
Of the heat retention elapsed time 5b based on the timer signal (S)
27). Then, when the pressing operation of the display switching key 4a is released, the ON signal of the display switching key 4a is not input to the display control means 12, and the flow returns to step 25 to again give priority to the timer signal of the timer means 14 so that the clock means The current time 5a is displayed based on the 13 clock signals.

As described above, even when the warming process is started from the beginning, the current time 5a is usually displayed on the display device 5 so that the current time can be known and the warming elapsed time can be known. When the display switching key 4a is pressed, the elapsed time 5b is displayed on the display device 5 only during the pressing operation, so that the user can know the elapsed time by pressing the display switching key 4a.

Embodiment 3 The configuration of the third embodiment of the present invention is shown in FIG. 1, and the description of the configuration will be omitted. Next, the display operation of the current time and the elapsed time of the heat retention in the process from the preheating of the rice cooker to the heat retention through the rice cooking according to the third embodiment of the present invention will be described with reference to the flowcharts of FIGS. 1 and 9 and the time chart of FIG. explain. In the third embodiment, steps S1 to S8 are the same as those in the first embodiment, and a description of the operation will be omitted. In step S9, the control means 11 starts the timer means 14 by the timer start signal at the same time as the start of the heat retention, and the timer signal is input to the display control means 12. Is displayed on the display device 5 on the basis of the timer signal of the timer means 14 (S9).

When the display switching key 4a is pressed once, an ON signal is input to the display control means 12 (S10). Upon receiving the ON signal of the display switching key 4a once, the display control means 12 displays the current time 5a based on the clock signal of the clock means 13 on the display device 5 after that, prior to the timer signal of the timer means 14 ( S11). Then, when the display switching key 4a is pressed again, the ON signal is input to the display control means 12. When the display control means 12 receives two ON signals, the process returns to step 9 and returns to the clock means 13 again. Display device 5 in preference to timing signal
The elapsed time of the heat retention 5 based on the timer signal of the timer means 14
b is displayed.

As described above, during the warming process in the cooking process, the display device 5 usually displays the warming elapsed time 5b.
Is displayed, the user can know the elapsed time of warming. If he wants to know the current time, press the display switching key 4a once. After that, the current time 5a continues to be displayed on the display device 5 and is displayed again. When the switching key 4a is pressed,
You can also know the current time.

Next, the operation of displaying the current time and the elapsed time when the warming process is started by operating the warming key 3 will be described with reference to the flowchart of FIG. First, the operation is started by pressing the heat retaining key 3 (S2).
1) The ON signal of the heat retention key 3 is input to the display control means 12 via the control means 11. The control means 11 calls the heating step from the cooking memory 10 excluding the preheating step and the rice cooking step from the cooking memory 10 based on the ON signal of the heat keeping key 3, and outputs a heating control signal for executing the called heat keeping step. 9 and the heating control means 9 controls the induction heating of the heating coil 8 to start the heat retention (S22).
Further, the control means 11 outputs a heat retention start signal to the display control means 12 when the heat retention is started, and the display control means 12 which has received the heat retention start signal turns on the heat retention LED 7 (S2).
3).

Further, the control means 11 starts the timer means 14 in response to the timer start signal at the same time as the start of the heat retention (S24), and the timer signal of the timer means 14 is inputted to the display control means 12. When the timer signal of the timer means 14 is input, the display control means 12
The timer means 14 is displayed on the display device 5 prior to the time signal of
Of the heat retention elapsed time 5b based on the timer signal (S)
25). Then, when the display switching key 4a is pressed, an ON signal is input to the display control means 12 (S2).
6). Upon receiving the ON signal of the display switching key 4a once, the display control means 12 displays the current time 5a based on the clock signal of the clock means 13 on the display device 5 prior to the timer signal of the timer means 14. (S27). And
When the display switching key 4a is pressed again, the ON signal is input to the display control means 12. When the display control means 12 receives two ON signals, the flow returns to step 25 and the time signal of the clock means 13 is returned again. Is displayed on the display device 5 on the basis of the timer signal of the timer means 14 with priority.

As described above, even when the warming process is started from the beginning, the display device 5 usually displays the warming elapsed time 5b.
Is displayed, it is possible to know the elapsed time of the heat retention, and when the user wants to know the time, when the display switching key 4a is pressed, the display switching key 4a is pressed to display the current time 5a on the display device 5. By doing so, the current time can be known, and when the display switching key 4a is pressed again, the display device 5 can know the warming elapsed time so that the warming elapsed time 5b is displayed.

Embodiment 4 FIG. The configuration of the fourth embodiment of the present invention is shown in FIG. 1, and the description of the configuration will be omitted. Next, the display operation of the current time and the heat retention elapsed time in the steps from preheating to the heat retention through the rice cooking of the rice cooker according to the fourth embodiment of the present invention will be described based on the flow charts of FIGS. 1 and 12 and the time chart of FIG. explain. In the fourth embodiment, steps S1 to S8 are the same as those in the first embodiment, and a description of the operation will be omitted. In step S9, the control means 11 starts the timer means 14 by the timer start signal at the same time as the start of the heat retention, and even if the timer signal is input to the display control means 12, the display control means 12 The current time based on the clock signal of the clock means 13 is displayed on the display device 5 prior to the signal.

When the clock key is pressed once, the ON signal is input to the display control means 12 (S
10). When the display control means 12 receives the ON signal of the display switching key 4a once, thereafter, the display control means 12 displays the warming elapsed time 5b based on the timer signal of the timer means 14 on the display device 5 prior to the clock signal of the clock means 13. (S11). When the display switching key 4a is pressed again, the O
The N signal is input to the display control means 12 and the display control means 1
In step 2, when receiving two ON signals, the process returns to step 9 and the current time 5a is displayed on the display device 5 again based on the time signal of the clock means 13 prior to the timer signal of the timer means 14.

As described above, during the warming process in the cooking process, the current time 5a is usually displayed on the display device 5 so that the current time can be known. When the switching key 4a is pressed once, the elapsed time 5b of the heat retention continues to be displayed on the display device 5, and when the display switching key 4a is pressed again, the temperature is turned on.
The current time can also be known by returning to a state where no signal is input.

Next, the operation of displaying the current time and the elapsed time of the warming when the warming process is started by operating the warming key 3 will be described with reference to the flowchart of FIG. First, when the heat keeping key 3 is pressed, the operation starts (S21), and an ON signal of the heat keeping key 3 is input to the display control means 12 via the control means 11. The control means 11 turns on the heat keeping key 3
From the cooking memory 10 based on the signal, of the cooking process, the warming process excluding the preheating process and the rice cooking process is called,
A heating control signal for executing the called warming process is output to the heating control means 9, and the heating control means 9 controls the heating of the heating coil 8 by induction heating to start the warming (S22). Further, the control means 11 outputs a heat retention start signal to the display control means 12 when the heat retention is started, and the display control means 12 which has received the heat retention start signal turns on the heat retention LED 7 (S23).

Further, the control means 11 starts the timer means 14 in response to the timer start signal at the same time as the start of the heat retention (S24), and the timer signal of the timer means 14 is inputted to the display control means 12. When the timer signal of the timer unit 14 is input, the display control unit 12 gives priority to the timer signal of the timer unit 14 and displays the clock unit 1 on the display device 5.
The current time 5a based on the clock signal of No. 3 is displayed (S2
5). Then, when the display switching key 4a is pressed,
An ON signal is input to the display control means 12 (S26).
When the display control means 12 receives the ON signal of the display switching key 4a, the display control means 12 displays the warming elapsed time 5b on the display device 5 based on the timer signal of the timer means 14 in preference to the clock signal of the clock means 13 ( S27). When the display switching key 4a is pressed again, the ON signal is input to the display control means 12. When the display control means 12 receives two ON signals, the flow returns to step 25 and the timer means 14 The current time 5a is displayed on the display device 5 based on the clock signal of the clock means 13 prior to the timer signal.

As described above, even when the warming process is started from the beginning, the current time 5a is normally displayed on the display device 5 so that the current time can be known and the warming elapsed time can be known. When the display switching key 4a is pressed, the elapsed time 5b of heat retention is displayed on the display device 5,
By pressing the display switching key 4a, the elapsed time of the heat retention can be known, and when the display switching key 4a is pressed again, the current time can be known in order to display the current time 5a on the display device 5. .

Embodiment 5 FIG. 15 is a block diagram illustrating a configuration of a rice cooker according to the fifth embodiment of the present invention, and FIG. 16 is an explanatory diagram of an operation panel of the rice cooker according to the fifth embodiment. 15, the same components as those of the first embodiment of the present invention shown in FIG. 1 are denoted by the same reference numerals, and the description of the duplicate components will be omitted. The fifth embodiment is different from the first embodiment in that a cancel key 15 is provided on the operation display panel 1.

Next, the display operation of the present time and the elapsed time of the heat retention in the process from the preheating of the rice cooker to the heat retention through the rice cooking according to the fifth embodiment of the present invention will be described with reference to the flow charts of FIGS. 15 and 17 and the time chart of FIG. It will be described based on. In the fifth embodiment, steps S1 to S8 are the same as those in the first embodiment, and a description of the operation will be omitted. In step S9, the control unit 1
1 starts the timer means 14 simultaneously with the start of heat retention, and the timer signal of the timer means 14
2, the display control means 12 causes the clock means 1
Display device 5 based on the timer signal in preference to the timing signal of
, The elapsed time 5b is displayed (S9).

Then, when the cancel key 15 is pressed (S10), the ON signal is input to the display control means 12 via the control means 11. The control means 11 having received the ON signal of the cancel key 15 cancels the heat retention by canceling the heat retention, and the display control means 12 which has received the ON signal of the cancel key 15.
Turns off the heat retention LED 7 (S11), and displays the current time 5a on the display device 5 on the basis of the clock signal of the clock means 13 prior to the heat retention elapsed time (S12). Thereafter, when the heat retention key 3 is pressed (S13), the O
The N signal is input to the display control means 12 via the control means 11. The control means 11 which has received the ON signal of the heat keeping key 3 restarts the execution of the heat keeping, and the display control means 12 which has received the ON signal of the heat keeping key 3 turns on the heat keeping LED 7 (S14). The current time 5a based on the clock signal of the clock means 13 is displayed on the display device 5 prior to the timer signal (S15).

As described above, during the heat retaining step in the cooking step, the display device 5 usually displays the heat retaining elapsed time 5b.
Is displayed, the elapsed time of the heat retention can be known, and when it is desired to know the current time, when the cancel key 15 is pressed, the current time 5a is continuously displayed on the display device 5,
After that, when the heat keeping key 3 is pressed, the heat keeping is restarted by the control means 11, the heat keeping LED 7 is turned on by the display control means 12, and the current time 5a is continuously displayed on the display device 5 to know the current time. it can.

In the above embodiment, the heating coil is used as the heating means. However, the present invention is not limited to this, and the present invention can be applied to a heating heater or the like. Nor.

[0042]

As described above, according to the first aspect of the present invention, when the display control means normally receives the time signal of the clock means and displays the current time on the display device, and enters the warming step, In response to the warming start signal from the control means, the display device displays the warming elapsed time based on the timer signal of the timer means in preference to the clock signal of the clock means, and receives the cancel signal from the cancel key to display the current time on the display device. Is displayed, and the current time based on the clock signal of the clock means is displayed on the display device even when the operation signal of the heat keeping key is received thereafter, so that the current time can usually be known and the warming process is started. In this case, the warming elapsed time can be automatically known, the warming can be canceled by pressing the cancel key during the warming process, and the current time can be known, and the warming key can be subsequently operated by pressing the warming key. There is an effect that it is possible to know the current time even when it is resumed.

[0043]

[0044]

[0045]

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a rice cooker according to Embodiments 1 to 4 of the present invention.

FIG. 2 is an explanatory diagram of an operation panel of the rice cooker according to the first to fourth embodiments.

FIG. 3 is a flowchart showing a display operation of a current time and an elapsed heat retention time in a process from preheating of the rice cooker to warming through rice cooking in the first embodiment.

FIG. 4 is a time chart showing states of a current time display and a warming elapsed time display in a process from preheating of the rice cooker to warming through rice cooking according to the first embodiment.

FIG. 5 is a flowchart showing a display operation of a current time and a warming elapsed time in a warming step of the rice cooker according to the first embodiment.

FIG. 6 is a flowchart showing a display operation of a current time and a warming elapsed time in steps from preheating to warming through rice cooking in the rice cooker according to the second embodiment of the present invention.

FIG. 7 is a time chart showing states of a current time display and a warming elapsed time display in a process from preheating of the rice cooker to warming through rice cooking in the second embodiment.

FIG. 8 is a flowchart showing a display operation of a current time and a warming elapsed time in a warming step of the rice cooker according to the second embodiment.

FIG. 9 is a flowchart showing a display operation of a current time and a heat retention elapsed time in a process from preheating of rice cooker to warming through rice cooking according to Embodiment 3 of the present invention.

FIG. 10 is a time chart showing states of a current time display and a warming elapsed time display in a process from preheating of the rice cooker to warming through rice cooking in the third embodiment.

FIG. 11 is a flowchart showing a display operation of a current time and a heat retention elapsed time in a heat keeping process of the rice cooker according to the third embodiment.

FIG. 12 is a flowchart showing a display operation of a current time and a heat retention elapsed time in a process from preheating of rice cooker to warming through rice cooking according to Embodiment 4 of the present invention.

FIG. 13 is a time chart showing states of a current time display and a warming elapsed time display in a process from preheating of the rice cooker to warming through rice cooking in the fourth embodiment.

FIG. 14 is a flowchart showing a display operation of a current time and a warming elapsed time in a warming step of the rice cooker according to the third embodiment.

FIG. 15 is a block diagram showing a configuration of a rice cooker according to Embodiment 5 of the present invention.

FIG. 16 is an explanatory diagram of an operation panel of the rice cooker according to the fifth embodiment.

FIG. 17 is a flowchart showing a display operation of a current time and a heat retention elapsed time in a process from preheating of the rice cooker to warming through rice cooking in the fifth embodiment.

FIG. 18 is a time chart showing states of a current time display and a warming elapsed time display in a process from preheating of the rice cooker to warming through rice cooking according to the fifth embodiment.

FIG. 19 is a time chart showing a state of a current time display and a warming elapsed time display in a process from the preheating of the conventional rice cooker to the warming through the rice cooking.

FIG. 20 is a time chart showing a current time display state in a process from another pre-heating of a rice cooker to a heat retention through rice cooking.

[Explanation of symbols]

2 rice cooking key, 3 heat retention key, 4a display switching key, 5 display device, 8 heating coil (heating means),
9 heating control means, 10 cooking memory, 11 control means, 12 display control means, 13 clock means,
14 Timer means.

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Eiji Kogure 1728 Koeda, Oaza, Hanazono-cho, Osato-gun, Saitama 1 Inside Mitsubishi Electric Home Equipment Co., Ltd. (72) Sadao Kanaya 1728 Koeda, Oaza, Hanazono-cho, Osato-gun, Saitama 1 Mitsubishi Electric Home Equipment Co., Ltd. (72) Inventor Hiroaki Tsukahara 1728 Komaeda, Oaza-gun, Hanazono-cho, Osato-gun, Saitama 1 Mitsubishi Electric Home Equipment Co., Ltd. (56) References JP-A-8-456 (JP, A) JP JP-A-3-296685 (JP, A) JP-A-61-137522 (JP, A) JP-A-9-434 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) A47J 27 / 00

Claims (1)

(57) [Claims] 1. A heating means for heating an inner pot, a heating control means for heating and controlling a heating means, a cancel key for canceling a heat keeping step, a heat keeping key for starting a heat keeping step, a time keeping time and a time keeping signal. A clock means for outputting, a timer means for measuring the elapsed time of the heat retention and outputting a timer signal, a display device for displaying the current time or the elapsed time for the heat retention, and a timer means for activating the timer means when the heat retention step is started, Outputs a start signal, outputs a heating control signal to stop the heat keeping step being executed based on the operation of the cancel key to the heating control means, stops the timer means, and causes the heat keeping step to be carried out based on the subsequent operation of the heat keeping key. A control means for outputting a heating control signal to the heating control means; a clock signal from the clock means for displaying a current time on a display device; receiving a warming start signal from the control means; Display the elapsed time of heat retention on the display device, display the current time on the display device in response to the cancel signal from the cancel key, and display the current time based on the clock signal of the clock means on the display device even if the operation signal of the heat retention key is received thereafter. A rice cooker comprising: display control means for performing display control to display time.