JPH02302219A - Steaming cooker - Google Patents

Abstract

PURPOSE:To improve usability and to prevent steaming cooking from being missed by maximizing heating in a state, a steam window is opened after steam is started to emit so that the steam can be passed through a steaming material, strengthening the force of the steam, executing the abovementioned operation for a fixed time and automatically executing the operation in plural times for each fixed time. CONSTITUTION:When the temperature of a thermistor 3a is more than 80 deg.C, a microcomputer 7 decides that the steam is emitted. Then the value of a time (n) to execute the operation, which is replaced to sprinkling, to open a steam window 5, to maximumize the electrification factor of a heater 2a and to improve the force of the steam is initialized to zero. The microcomputer 7 sets an output A point to high impedance, operates a stem window opening/ closing means 6 and opens the steam window 5. The microcomputer 7 starts the count of a timer 2 to count an interval time in which the operation replaced to the sprinkling is executed. Since the operation replaced to the sprinkling can be automatically by the plural times for each fixed time according to this timer 2, the usability is improved and the steaming cooking to require to sprinkling can be prevented form being missed.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a steam cooker that can perform steam dishes that require sprinkling of water during steam cooking.

Conventional technology Conventionally, a steam cooker has a configuration shown in FIG. 4.

That is, there is a pot 1 in which steamed water and steamed ingredients are placed, a heating means 2 for heating the pot 1, a steam detection means 3 for detecting that the steamed water in the pot 1 has turned into steam, and a steam detection means 3 for detecting that the steamed water in the pan 1 has turned into steam. A steaming time setting means 4 for setting the steaming time from the start, controlling the energization rate of the heating means 2, receiving a signal from the steam detection means 3 that steam has started to come out, and setting the steaming time after steam has started to come out. It is comprised of a control means 6 which controls the heating means to perform the steaming process for a period of time set by the means 4.

Problems to be Solved by the Invention However, with this configuration, in the case of dishes that require sprinkling water during steam cooking, for example, steamed rice 1. When cooking, the user needs to monitor when steam starts to come out, and then sprinkle a certain amount of water at regular intervals after the steam starts to come out.

Controlling the amount of sprinkling water is not easy to use, and cooking may fail due to incorrect timing or amount of sprinkling water.

Therefore, in the present invention, instead of sprinkling water after the steam starts to come out, the steam window is opened to maximize heating and increase the momentum of the steam for a certain period of time so that the steam passes through the material to be steamed. The purpose of the present invention is to provide a steam cooker that automatically performs cooking multiple times at regular intervals, is easy to use, and can cook well.

Means for Solving the Problems and In order to achieve the above object, the present invention provides a steam window for allowing steam in a pot to pass through the steamed material and exhausting it outside the pot, and for opening and closing the steam window. Dan's steam window opening/closing means;
The energization rate of the heating means is controlled, the signal from the steam detection means is input, and after steam starts to come out, the steam window opening/closing means is controlled to keep the energization rate of the heating means at the maximum for a certain period of time with the steam window open. This is performed a plurality of times at regular intervals, and the steaming process is performed by controlling the heating means for the time set by the steaming time setting means.

Effects The steam cooker of the present invention has the above-mentioned configuration, so that after the steam starts to be produced, the steam is heated to the maximum with the steam window open so that the steam passes through the steamed material. This can be done automatically multiple times at regular intervals to increase the momentum of the movement.
This improves usability and prevents mistakes in steaming dishes.

゛Embodiment Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings. FIG. 1 is a block diagram of one embodiment of the present invention.

Components that are the same as those of the conventional example are given the same numbers, and description thereof will be omitted. In the figure, 6 is a steam window for allowing steam in the pot 1 to pass through the steamed material and discharged to the outside of the pot 1. e is a steam window opening/closing means for opening and closing the steam window 6. 7
is a control means, which controls the energization of the heating means 2, inputs the signal from the steam detection means 3, and after steam starts to come out, controls the steam window opening/closing means 6 to open the steam window 6, The energization rate of the heating means 2 is maximized for a certain period of time a plurality of times at certain time intervals, and the heating means 2 is controlled for the time set by the steaming time setting means 4 to perform the steaming process.

Next, a circuit diagram of an embodiment of the present invention is shown in FIG. 1 is a steaming plate 10 on which steaming water 8, steaming ingredients 9, and steaming ingredients 9 are placed.
It is a pot to put things in. 2a is a heater that heats this pot 1. 3a is a thermistor for detecting when the steaming water in the pot turns into steam and the temperature of the lid 11 of the pot 1 exceeds a certain temperature, for example, 80 degrees Celsius or higher, and the voltage divided by the resistor 13 is input to the A/D converter 14. The output of the A/D converter 14 is input to the microcomputer 7, and the microcomputer 7 can detect the temperature of the lid 11. The resistor 16°1e sets a reference voltage for the A/D converter 14.

4a is a steaming time setting switch υ for setting the steaming time after steam starts coming out, and microcomputer 7
The steaming time is set by the length of the ON time of this switch 4a. A resistor 17 fixes the input voltage to the microcomputer 7 at a low level when the steaming time setting switch 4a is OFF.

5 passes the steam in the pot 1 through the steamed material 9 and
This is a window to vent steam to the outside. 6 is this steam window 5
The steam window 6 can be opened by operating the solenoid valve, which is a steam window opening/closing means for opening and closing the steam window. 18 is a transistor, and 19 is a resistor, which are connected to the output point A of the microcomputer 7. When the output point A is high impedance, the transistor 18 is ONL,
The steam window opening/closing means 6 operates, and the steam window 5 opens. Conversely, when the output point A is low level, the transistor 18 is 0FFI,
, the steam window opening/closing means 6 does not operate, and the steam window 6 remains closed. 2o is a switch that gives a start signal for starting steam cooking, and is connected to the DC power supply 22 and the input of the microcomputer 7. When the switch 2o is pressed, a high signal is sent to the input of the microcomputer 7. Once the level is entered, steam cooking will begin. A resistor 21 fixes the input of the microcomputer 7 to a low level when the switch 20 is off. Further, 23 is a relay coil, and 23a is a relay contact, and energization of the heater 2a is determined by turning on or off the relay contact 22a. 24 is a transistor, and 26 is a resistor, which are connected to the output point B of the microcomputer 7. When the output point B is at high impedance, the transistor 24 is turned on, energizing the relay coil 23, closing the relay contact 23a, and energizing the heater 2. Conversely, when point B is at low level, transistor 2
4 OFF l, relay contact 23a is open and heater 2 is not energized.

26 is a commercial AC power source. 12 is a small steam port that prevents the pressure in the pot 1 from increasing when the steam window 6 is closed.

The operation of the circuit diagram of the embodiment of the present invention described above will be explained based on the flowchart of the embodiment of the present invention shown in FIG.

In step 30, the steaming time setting switch 4a is turned on, and the steaming time is set to 1 minute for every 1 second of ON time, and the steaming time T1 from when steam starts to come out is set in the timer 1. In step 31, the user presses the switch 2o, and upon receiving this signal, the microcomputer 7 starts steaming cooking and proceeds to the next step 32. In step 32, the microcomputer 7 sets the output point B to high impedance, turns on the relay contact 23a, and heats the pot 1 by maximizing the energization rate to the heater 2. In the next step 33,
The microcomputer 7 determines whether the temperature of the thermistor 3a has reached ao'b or above based on the output of the A/D converter 14, and if it is below 80°C, it is determined that no steam is coming out and the process returns to step 32. If the temperature is 80° C. or higher, it is determined that steam is coming out, and the process proceeds to the next step 34. Step 3
In step 4, the microcomputer 7 starts counting the steaming time T1 set in step 30. Next, the process proceeds to step 36, where the value of the number of times n for performing an operation in place of sprinkling water, in which the steam window 6 is opened and the energization rate of the heater 2a is maximized to increase the force of the steam, is initialized to zero. Next, proceeding to step 3e, the microcomputer 7 sets the output point A to high impedance, operates the steam window opening/closing means 6, and opens the steam window 6. Next, the process proceeds to step 37, and the microcomputer 7 starts counting the timer 2 that counts the interval time for performing an action that is an alternative to sprinkling water. This timer 2 allows an action to be performed in place of sprinkling water at regular intervals. Next, the process proceeds to step 38, where the steam window 6 is opened, and the timer 3 starts counting the time to continue the operation, which is to increase the momentum of the steam by maximizing the energization rate of the heater 2, in place of sprinkling water.

Next, proceed to step 39. In step 39, with the steam window opened in step 36, as in step 32,
The heater 2a is energized at the maximum energization rate to heat the pot 1, steam is vigorously discharged, the steam is passed well through the steamed material, and the steam is discharged to the outside from the steam window 6. This produces the same effect as sprinkling water on the steamed material. For example, steamed rice will be fluffy and firm.

Next, proceed to step 40. In step 4o, the time that started counting in step 38 is determined to be a certain period of time, for example 1.
Determine whether the minute has passed, and if it is within 1 minute, step 3
Return to 9. Conversely, when one minute has elapsed, the process proceeds to the next step 41. In step 41, timer 3 counts 1 minute.
is cleared to 0 and the process proceeds to the next step 42. In the next step 42, an alternative step 37 of sprinkling water is performed.
The number of times the operations from to step 41 have been performed is counted by +1. Next, the process proceeds to step 43, where it is determined whether the action to replace the sprinkling of water has been performed three times. If it is less than 3 times, proceed to step 44, use timer 2 to determine how many minutes have passed since the start of the previous uchimizu action, and set it as a be dance at a low level for 11 seconds! : L The heater 2a is energized at the energization rate of 5/16, and the process returns to step 44. In step 44, timer 2
If 6 minutes have passed, that is, the previous uchimizu
If it is 5 minutes i after performing the alternative operation, proceed to step 46, clear timer 2 for the next timer 2 counting operation, return to step 37, and repeat the above operation. . In step 43, from step 3θ to step 41 instead of sprinkling water
If the above operations have been performed three times, the process advances to step 47. Here, the steaming time T1 set in step 30
Determine whether time has elapsed since steam started coming out. T1
If the time has not elapsed, the process proceeds to step 48, in which the heater 2 is energized at a 6/16 energization rate similarly to step 46, and the process returns to step 47. Steaming time T1 in step 47
If the time has passed, the process advances to step 49 and the cooking ends.

Effects of the Invention As described above, in the present invention, instead of sprinkling water after steam starts coming out, the steam window is opened and the heating is maximized for a certain period of time to increase the momentum of the steam, so that the steam can flow into the steamed material. This can be done automatically multiple times at regular intervals, improving usability and preventing mistakes in steaming dishes that require sprinkling water. .

[Brief explanation of drawings]

FIG. 1 is a block diagram of a steam cooker showing an embodiment of the present invention, FIG. 2 is a circuit diagram thereof, FIG. 3 is a flowchart showing the same operation, and FIG. 4 is a block diagram of a conventional example. 1... Pot, 2... Heating means, 3...
... Steam detection means, 4 ... Steaming time setting means, 6 ... Steam window, 6 ... Steam window opening/closing means, 7 ... Control means .

Claims (1)

[Claims] A pot for storing steamed water and steamed ingredients, a heating means for heating the pot, a steam detection means for detecting that the steamed water in the pot has turned into steam, and a steaming time after steam starts to be produced. a steam window for allowing steam in the pot to pass through the steamed material and exhausting it outside the pot; and a steam window opening/closing device for opening and closing the steam window. Controls the energization of the heating means, inputs a signal from the steam detection means, and after steam starts to come out, controls the steam window opening/closing means to energize the heating means with the steam window open. A steam cooker comprising a control means for maximizing the steaming rate for a certain period of time a plurality of times at certain time intervals, and controlling the heating means for a time set by the steaming time setting means to perform a steaming process.