JPH0319A - Cooking steamer - Google Patents

Abstract

PURPOSE:To facilitate the use of a cooking steamer by providing a control means for controlling the energization of a heating means, which controls a steam window opening and closing means in accordance with a signal indicating a start of generation of steam, delivered from a steam detecting means, so as to open a steam window, and then energizes the heating means at a maximum value while closing the steam window for a predetermined time, and which repeats these steps by several times so as to carry out a steaming process for a set time. CONSTITUTION:A heating means 2 heats a pan 1 while a steam detecting means 3 detecting steam into which water for steaming in the pan 1 is turned, and a steam setting means 4 sets a steaming time after generation of the steam. A steam window 5 discharges steam from the pan to the outside of the latter after steam passing through a material to be steamed, and a steam window opening and closing means 6 opens and closes the steam window 5. A control means 7 for controlling the energization of the heating means 7, controls the steam window opening and closing means 6 in accordance with a signal indicating a start of generation of steam delivered from the steam detecting means 3 so as to open the steam window 5, then energizes the heating means 2 at a maximum value so as to increase the power of the steam, and closes the steam window 5 after a predetermined time elapsing. The abovementioned steps are repeated by several times for every predetermined time so that the heating means 2 is controlled for a time set by the steaming time setting means 4 in order to carry out a steaming process.

Description

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

Conventional technology An example of a conventional steam cooker is shown in the block diagram of FIG.

In FIG. 4, a pot 31 for storing steamed water and steamed materials, a heating means 32 for heating the pot 31, and a steam detection means 33 for detecting that the steamed water in the pot 31 has turned into steam.
and a steaming time setting means 34 for setting the steaming time after steam starts to be produced, and controlling the energization rate of the heating means 32,
It is comprised of a control means 35 which controls the heating means 32 to carry out the steaming process for a time set by a steaming time setting means 34 after receiving a signal from the steam detection means 33 that steam has started to come out.

Problems to be Solved by the Invention However, with the above configuration, when cooking a dish that requires sprinkling water such as steaming, for example, when cooking steamed rice, the user monitors when steam starts to come out, It was necessary to sprinkle a certain amount of water at certain intervals after the steam started coming out. For this reason, it is difficult to use because it takes time and effort to manage the sprinkling time and amount of water, and cooking sometimes fails due to incorrect sprinkling time and amount.

The purpose of the present invention is to address the above problems.

After the steam starts to come out, the steam window is opened so that the steam passes through the material to be steamed instead of sprinkling water, and the heating is maximized to increase the momentum of the steam for a certain period of time, and the above process is repeated multiple times at regular intervals automatically. The purpose of the present invention is to provide a steam cooker that is practical, easy to use, and can cook food well.

Means for Solving the Problems In order to achieve the above objects, the present invention provides a pot for storing steaming water and steaming materials, a heating means for heating the pot, and the steaming water in the steel turned into steam. a steam detection means for detecting steam generation, a steaming time setting means for setting a steaming time after the steam starts to be generated, and a steaming time setting means for causing the natural gas in the steel to pass through the steaming material and to discharge it to the outside of the steel. It includes a steam window, a steam window opening/closing means for opening and closing the steam window, and a control means for controlling each of the above-mentioned means, and the control means controls energization of the heating means and receives a signal from the steam detection means. After inputting the input and steam starting to come out, ii) controlling the steam window opening/closing means to open the steam window, maximizing the energization rate of the heating means, and closing the steam window after a certain period of time; This operation is repeated a plurality of times at regular time intervals to provide a steaming cooker that performs a steaming process for a time set by the steaming time setting means.

Function The present invention can perform a steaming action by providing a steam window as described above so that the steam in the pot passes through the material to be steamed and is discharged. Further, the steam window opening/closing means opens and closes the steam window in response to a signal from the steam detection means under the control of the control means,
The control means controls the energization rate to the heating control means in accordance with this opening/closing, and this series of operations can be automatically repeated multiple times. Furthermore, the steaming process time can be set and controlled by the steaming time setting means.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 to 3.

In FIG. 1, 1 is a pot, 2 is a heating means, and 63 is a steam detection means for heating the pot 1, which detects that the steaming water in the pot 1 has turned into steam. 4 is a steaming time setting means for setting the steaming time after steam starts to come out. 5 is a steam window,
The steam in the pot 1 is passed through the steamed material and discharged to the outside of the pot 1. A steam window opening/closing means 6 opens and closes the steam window 5.

Reference numeral 7 denotes a control means which controls the energization of the heating means 2, inputs a 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 5, and controls the steam window opening/closing means 6 to open the steam window 5. By controlling the energization rate to the maximum, the momentum of the steam is increased, and after a certain period of time, the steam window 5 is closed several times at a certain period of time, and the heating means 2 is heated for a period of time set by the steaming time setting means 4. The steaming process is carried out in a controlled manner.

Next, a circuit diagram of an embodiment of the present invention is shown in FIG.

1 indicates a pot and 5 indicates a steam window, which is the same as in FIG.

The steel 1 is provided with a steaming plate 8 for placing the steaming material on top of the steaming water. Reference numeral 9 denotes a heater as a heating means, and the heating means is not limited to a heater, but a dielectric heating coil for dielectric heating or the like may also be used. Reference numeral 10 denotes a thermistor as steam detection means, which detects when the steaming water in the pot turns into steam and the temperature of the lid 11 of the pot I reaches a certain temperature or higher, for example, 80° C. or higher. The voltage divided by the thermistor 10 and resistor 12 is input to the A/D converter 13. The output of the A/D converter 13 is input to the microcomputer 14, and the microcomputer 14 can detect the temperature of the lid 11. Resistors 15 and 16 set a reference voltage for the A/D converter 13. A switch 17 is connected to the microcomputer 14 and serves as a steaming time setting means for setting the steaming time after steam starts to be produced. The steaming time is set based on the length of the ON time of the steaming time setting means 17. I8 is a resistor that fixes the input terminal to the microcomputer I4 at a low level when the steaming time setting means I7 is OFF. I9 is a solenoid valve as a steam window opening/closing means. This steam window opening/closing means 19 is a transistor 2
The transistor 20 and the resistor 21 are connected in series to the output point A of the microcomputer 14. When the output point A is at high impedance, the transistor 20 is turned ON, and the steam window opening/closing means I9 operates to open the steam window 5. Conversely, when the output point A is at a low level, the transistor 20 is turned off and the steam window opening/closing means 19 is turned off.
does not operate and the steam window 5 remains closed. A switch 22 is connected to a DC power supply 23 and an input of the microcomputer 14, and provides a start signal for starting steam cooking. By turning on this switch 22, a high level is input to the input of the microcomputer 14, and steam cooking starts. 24 is a resistor, and by turning off the switch 22, the input of the microcomputer 14 is fixed at a low level. 25 again
is a relay coil, 26 is a relay contact, and heating means 9
Turn on relay contact 26 to energize.

627, which is determined to be OFF, is a transistor, and 28 is a resistor, which are connected to the output point B of the microcomputer I4. When the output point B is at high impedance, the transistor 27 turns ON, energizing the relay coil 25, closing the relay contact 26, and energizing the heating means 9. Conversely, when the 8 points are at low level, the transistor 27 is 0FFL, the relay contact 26 is opened, and the heating means 9 is not energized. 29 is a commercial AC power source. Further, 30 is a small steam port that prevents the pressure in the pot 1 from increasing when the steam window 5 is closed.

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

In step a, turn on the steaming time setting means 17,
The steaming time is set to 1 minute for every 1 second, and the steaming time TI from the time when steam starts to come out is set to the timer l.

In step b, the user presses the switch 22.

The microcomputer 14 receiving the input signal from the switch 22 starts steaming and proceeds to the first step C.

In step C, the microcomputer 14 sets the output point B to high impedance, turns on the relay contact 26, and causes the heating means 9 to consume the maximum power to heat the pot l.

The next step d is the thermistor! The microcomputer j4 determines whether the temperature of 0 has become 80"C or higher based on the output of the A/D converter 13. If it is 80"C or lower, it is assumed that no steam is coming out and the process returns to step C.If it is 80"C or higher, the process returns to step C. determines that steam is coming out and proceeds to the next step e.

In step e, the microcomputer 14 starts counting the steaming time T1 set in step a.

Next, proceeding to step f, the steam window 5 is opened and the energization rate of the heating means 9 is maximized to increase the momentum of the steam. In this way, the value n of the number of times an action is performed in place of sprinkling water is initialized to zero.

Next, proceeding to step g, the microcomputer 4 sets the output point A to high impedance, and the steam window opening/closing means 19
to open the steam window 5.

Next, the process proceeds to step h, and a timer 2 starts counting the interval time for performing an action in place of sprinkling water. This allows an action to be performed at regular intervals in place of sprinkling water.

Next, proceeding to step i, the steam window 5 is opened, the energization rate of the heating means 9 is maximized to increase the momentum of the steam, and the timer 3 starts counting the time to continue the operation in place of sprinkling water.

Next, proceed to step j. In step j, with the steam window 5 opened in step g, the heating means 9 is turned on as in step d.
The pan 1 is heated by being energized at the maximum energization rate, steam is vigorously discharged to pass through the steamed material well, and then the steam is discharged to the outside from the steam window 5. This produces the same effect as sprinkling water on the steamed material.For example, in the case of steamed rice, the steamed rice becomes fluffy and firm.

Next, proceed to step k. In step 1, it is determined whether a certain period of time, for example 1 minute, has elapsed since the start of counting in step i, and if it is less than 1 minute, the process returns to step j.

Conversely, when one minute has elapsed, proceed to the next step I.

In step l, the timer 3 that has counted one minute is cleared to 0, and the process proceeds to the next step m.

In step m, the microcomputer 14 sets the output point A to a low level, turns off the transistor 20, stops the operation of the steam window opening/closing means 19, and closes the steam window 5.

Next, proceed to step n, and add 1 to the number of times you performed the actions from step g to step m instead of sprinkling water.
Count.

Next, proceed to step 0 and perform 3 actions to replace the uchimizu.
Determine whether the rotation has been completed. At this time, if it is less than 3 times, proceed to step p, and use timer 2 to determine how many minutes have passed since the start of the action that replaced the previous uchimizu.
If it is less than 5 minutes, the process proceeds to step q, where the microcomputer 14 makes the output point B high impedance for 5 seconds out of 16 seconds, sets it to low level for 11 seconds, and energizes the heating means 9 at an energization rate of 5/16. Return to step p
If 5 minutes have elapsed on timer 2, that is, 5 minutes have elapsed since the last action that replaced the water sprinkling, the process proceeds to step r, and timer 2 is activated for the next timer 2 counting operation. Clear, return to step g, and repeat the above operation. In step 0, if the operations from step g to step m have been performed three times instead of sprinkling water, the process advances to step S.

In step S, it is determined whether the steaming time T1 set in step a has elapsed since steam started to come out. If the time T1 has not yet elapsed, proceed to step t, energize the heating means 9 at a 5/16 energization rate in the same way as step q, and proceed to step S.
Return to If the steaming time T1 has elapsed in step S, the process advances to step U and the cooking ends.

Effects of the Invention As described above, the present invention provides a steam window, controls the heating means and the steam window opening/closing means through the control means, generates sufficient steam to perform the steaming effect, and furthermore, By automatically repeating this steaming state multiple times, the steaming effect in the pot can be further improved.

Therefore, when steaming food as in the past, the user does not have to monitor when steam starts to come out and pour a certain amount of water at certain intervals after steam starts to come out, making it easier to use. It is possible to provide a steam cooker that can improve cooking efficiency, and also prevent failures in steaming food due to forgetting to sprinkle water or using the wrong amount of water.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing an embodiment of the present invention, Fig. 2 is a circuit diagram showing the same embodiment, Fig. 3 is a flowchart showing the same embodiment, and Fig. 4 is a block diagram showing a conventional example. be. l... Pot 2.9... Heating means 3.10... Steam detection means 4.17-... Steaming time setting means 5... Steam window 6
．． 19...Steam window opening/closing means 7...Control means Applicant Matsushita Electric Industrial Co., Ltd. Agent Patent attorney Oshima-Ko Figure 3

Claims (1)

[Claims] (1) A pot for storing steaming water and steamed ingredients, heating means for heating the pot, steam detection means for detecting when the steaming water in the pot has turned into steam, and A steaming time setting means for setting a steaming time; a steam window for passing the steam in the pot through the steamed material and discharging it outside the pan; and a steam window opening/closing device for opening and closing the steam window. and a control means for controlling each of the above-mentioned means, the control means controls energization of the heating means, and after inputting a signal from the steam detection means and steam starts to come out, the steam window opening/closing means control to open the steam window, maximize the energization rate of the heating means, close the steam window after a certain period of time, and repeat this series of operations a plurality of times at regular intervals, and the steaming time setting means A steam cooker characterized by performing a steaming process for a set time.