JPH02146427A - Heating cooking utensil - Google Patents

Abstract

PURPOSE:To make it possible to estimate a remaining heat of a heater at the next starting point of cooking and execute the next cooking at a proper amount of heating by installing a compensation means which compensates the length of cooking time for grill cooking based on power supply time to the heater and the time lapsed. CONSTITUTION:When the time T1 lapsed from the point of end time of the previous grill cooking is detected and the thus detected time does not exceed a specified time (30 minutes), an attempt is made to compute cooking time which is corrected so that it may be shorter than a standard cooking time T0. Based on this cooking time, the next grill cooking is designed to be executed. Therefore, the remaining heat of a heater 4 is capable of preventing excessive heating of food previously. Furthermore, consideration is not limited to the time T1 lapsed, but also this construction is designed to compensate cooking time in consideration for a power supply time T2 to the heater 4 in the previous grill cooking when the time lapsed T1 is below a specified value. Therefore, when a slight amount of heat remains in the heater 4, as power is supplied to the heater 4 only for a short time in the previous grill cooking, it is possible to prevent the setting of excessively shorter cooking time previously.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a heating cooker that grills food by applying electricity to a heater.

(Prior Art) For example, in a multi-functional microwave oven, in addition to heating cooking using microwaves, there is also oven cooking in which hot air generated by a separately provided heater is sent into the heating chamber, and
There are also grills available that perform radiant heating of food by energizing a separately provided heater.

In this case, for grill cooking, when the user operates the desired cooking menu key, the heater is energized to cook and maintain the interior at a predetermined temperature, and this is continued for a predetermined cooking time. (to be done) M was done.

(Problem to be Solved by the Invention) However, with the above configuration, when such grill cooking is repeatedly performed, the second grilling point II is started while the golden heat from the previous grilling process remains in the heater. When grilling is started, in the conventional method (1°, S), in which the grilling procedure 1 is executed for a predetermined fixed cooking time, the heating in the second grilling process becomes excessive and the food is not grilled. There was a problem in that it had a tendency to become excessive.

To deal with this, if a certain amount of time has not passed since the end of the previous grilling process, it may be possible to correct the cooking time so that the next grilling time is shortened. . However, if you configure it like this,
This time, the cooking time will change even if grilling is interrupted when grilling has just started and the red heater has not yet risen to a sufficient temperature, and then the next grilling starts within a short time. It was corrected short, and now on the contrary,
This may lead to a situation where the amount of heating is insufficient.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a heating cooker that can perform appropriate heating even when grilling is repeatedly performed without being affected by the content of the previous cooking.

[Configuration of the Invention (Means for Solving the Problems) Heating 11 of the Invention! The heating device includes energization time detection means for detecting the heater energization time during the previous grill 1 operation;
An elapsed time detection means for detecting the elapsed time since the end of the previous grill cooking, and a correction means for correcting the length of the cooking time for grill cooking based on the heater energization time and the elapsed time. It has the following characteristics.

(Function) Since the energization time detection means detects the heater energization time during the previous grill cooking and the elapsed time detection means detects the elapsed time from the end of the previous grill cooking, the following The residual heat that the heater has at the time of starting cooking can be estimated relatively accurately, and the next cooking can be performed with an appropriate heating amount.

(Embodiment) An embodiment in which the present invention is applied to a multi-functional quantum microwave oven that enables grill and oven cooking will be described below with reference to the drawings.

First, in Figure 2 showing the overall configuration of a microwave oven,
1 is an outer box, 2 is a heating chamber formed inside the outer box 1, and 3 is a door for opening and closing the heating chamber 2. A heater 4 for grill cooking is arranged on the ceiling surface of the heating chamber 2, and a heater 5 for oven cooking and a fan (not shown) are provided inside the back surface.

6 is a temperature sensor provided to protrude from the upper part of the heating chamber 2 and measures the fH degree in the heating chamber 2; 7 is an operation switch provided on the operation panel 8 on the front of the outer box 1; 9 is a 3 ．．
This is a display for displaying time, etc.

On the other hand, the electrical fM configuration is shown in FIG. , 5 are controlled, and a signal from an operation switch 7 is given to this control circuit 1°. Here, when the user sets grill cooking and selects a desired cooking menu, the control circuit 1o energizes the heater 4 without referring to the temperature inside the heating chamber 2, so that the inside of the heating chamber 2 reaches a predetermined temperature. Grill cooking is carried out to maintain the temperature at a certain temperature, and this is carried out for a period of time according to the cooking menu. Further, when oven cooking is set, the control circuit 1o also refers to the temperature inside the heating chamber 2 and energizes the oven heater 5 to maintain the inside of the heating chamber 2 at a predetermined temperature. , 'J theory is executed, microwave J9! When setting the high frequency generation circuit 1
1 power is supplied, and the food in the heating chamber 2 is irradiated with microwaves from the magnetron.

Now, this control circuit 10 includes heating chamber temperature detection means 12.
, an energization time detection means 13, an elapsed time detection means 14, and a correction means 15. Heating chamber temperature detection means 12
receives a signal from the temperature sensor 6 and provides information corresponding to the temperature inside the heating chamber 2 to the correction means 15. Further, the energization time detection means 13 is configured using a timekeeping function of a microcomputer, detects the energization time of the heater 4 during the previous grill cooking, and provides the detected time to the correction means 15. Further, the elapsed time detection means 14 is also configured using the timekeeping function of a microcomputer, and detects the elapsed time from the time when the previous grill 1 cooking was completed, and provides the detected time to the correction means 15.

The correcting means 15 has a function of correcting the length of cooking time in the grill FJ process based on the above-mentioned temperature detection signal, heater energization time, and elapsed time, and is specifically shown in the flowchart of FIG. The correction program is executed every time you start grilling.

That is, when the predetermined operation switch 7 is turned 11Y to set grill cooking and a cooking menu is selected, first the cooking time T is set according to the cooking menu. is read from the memory within the control circuit 10. After this, supplement i
1, and the elapsed time T is, for example, 3.
It is determined whether the time is 0 minutes or more (step A). Here, the elapsed time T refers to the elapsed time from time X when the previous grill cooking ends to time Y when the next grill cooking start operation is performed, as shown in FIGS. 4 and 5.

Note that FIG. 4 shows a case where the previous grill cooking was stopped after the inside of the heating chamber 2 once reached a predetermined cooking temperature t, and FIG. This shows a case where the grill cooking is stopped before the inside of the heating chamber 2 reaches the predetermined cooking temperature t.

Now, if the elapsed time T1 is longer than 30 minutes (rYESJ in step A), it is considered that the heater 4 has cooled down sufficiently, so the cooking time is the standard cooking time T. (Step C).

On the other hand, if the elapsed time T1 is shorter than 30 minutes (rNOJ in step A), it is possible that residual heat remains in the heater 4.
It is determined whether or not the time is in the range of 10 minutes≦TI and 30 minutes (Step C). If it is within that range, it is determined whether or not the inside of the heating chamber 2 reached the cooking temperature t during the previous grill cooking (Step D). If YESJ, the cooking time is set to aTo (Step D). E). Note that a and b-h described below are values of 1 or less, and are coefficients for correcting the cooking time with respect to the standard cooking time T11 in consideration of residual heat. Furthermore, if the determination in step D is "NO", then the energization time T2 of the heater 4 during the previous grilling or cooking is taken into consideration. This is because if the energization time T2 was short in the previous grill cooking, the residual heat of the heater 4 should be small. Specifically, the energization time T2 is 3
0 seconds and 60 seconds (steps F, G), and when the time is 30 seconds or less, the cooking time is set to bTo (step H), and when 30 seconds<T2≦60 seconds, the cooking time is set to c.
The cooking time is set to dT (step I), and when it exceeds 60 seconds, the cooking time is set to dT (step J).

On the other hand, when the elapsed time T1 is less than 10 minutes and rNOJ occurs in the above-mentioned step C, it is determined whether or not the inside of the heating chamber 2 reached the cooking temperature t during the previous grill cooking (step K). When YESJ, the cooking time is set to eTo (step L), and then the energization time T2 of the heater 4 in the previous grill cooking is set to 30.
seconds, 60 seconds (steps M, N). As a result, when the energization time T2 is 30 seconds or less, the cooking time is fT.
o (step O), and when 30 seconds<T2≦60 seconds, the cooking time is set to gTo (step P),
If it exceeds 60 seconds, the processing time is set to hTo (step Q). In this way, one cycle time T
(When the cooking time corrected for + is calculated,
The process returns to the routine and grills for that cooking time.

In this way, in this embodiment, the elapsed time T1 from the end of the previous grill cooking is detected, and when this is less than the predetermined value (30 minutes), the standard cooking time T is set.

Since we calculate the corrected cooking time by multiplying by χ・1 and execute the next grill cooking based on this, the food will not be overheated due to the residual heat left in the heater 4. You can prevent it from being put away. Also, simply the elapsed time T.

In addition to considering the elapsed time T, when the elapsed time T is less than a predetermined value, the cooking time is corrected by considering the energization time T2 of the heater 4 in the previous grill cooking. If the heater 4 is only energized for a short period of time and only a small amount of residual heat remains in the heater 4 (as shown in Figure 5), the cooking time should not be set shorter than 8 seconds. It can be prevented.

In addition, in the above example, the elapsed time T is compared with 30 minutes,
Although the energization time T2 is compared with 30 seconds and 60 seconds, the present invention is not limited to this, and may be set appropriately in consideration of the heat capacity of the heating chamber body, the output/heat capacity of the heater, etc. .

[Effects of the Invention] As described above, the present invention corrects the length of the cooking time in consideration of the elapsed time from the end of the previous grill cooking and the energization time to the heater in the previous grill cooking. Because of this structure, even when grill cooking is repeatedly performed, an excellent effect is achieved in that appropriate cooking can be performed without being influenced by the contents of the previous cooking.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a block diagram of the main parts, FIG. 2 is a perspective view with the door open, FIG. 3 is a flowchart, and FIGS. 4 and 5 are grills. It is a graph showing the temperature change inside the heating chamber during cooking. In the drawing, 2 is a heating chamber, 4 is a heater, 5 is a temperature sensor, 1
0 is a control circuit, 11 is heating chamber temperature detection means, 13 is energization time detection means, 14 is elapsed time detection means, and 15 is correction means.

Claims (1)

[Claims] 1. An elapsed time detecting means for detecting the elapsed time from the end of the previous grill cooking in a grill cooking in which the heater is energized to heat the food in the heating chamber for a predetermined cooking time; Heat cooking characterized by being provided with an energization time detection means for detecting the heater energization time during the previous grill cooking, and a correction means for correcting the length of the cooking time based on the elapsed time and the heater energization time. vessel.