JP2001330255A - Oven toaster - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate a difficulty with prior art that when in an oven toaster continuous cooking is performed, an optimum eating cooking time is not obtained to result in variations of cooking performance. SOLUTION: Correction is performed to a heater conductivity and cooking time where cooking time is determined or has been determined from a chamber temperature to which correction is performed, or from interval time to which correction is performed in response to a power conduction rate of a heater(heat source) 3 in a predetermined time during previous cooking, to determine the cooking time. As a result, a cooked tasty article can be obtained at all times.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oven toaster used in ordinary households.

[0002]

2. Description of the Related Art In a conventional oven toaster, the inside temperature is predicted only by the sensor temperature at the start of cooking and the time from the end of the previous cooking to the start of the next cooking.
The next cooking time was determined. Further, Japanese Unexamined Patent Publication No.
As shown in JP-A-168564, the next heating cooking is performed during a period from the end of the previous heating cooking to the start of the next heating cooking, that is, when the heater is not energized, according to the opening and closing time of the door measured by the open / close detection switch. Time was being corrected.

[0003]

However, in the above-mentioned conventional method for determining the heating cooking time or the correction method, only the sensor temperature at the time of starting cooking and the time from the end of the previous heating cooking to the start of the next heating cooking are used. Because the temperature in the refrigerator was predicted and the next cooking time was determined, or the next cooking time was determined only according to the opening and closing time of the door from the end of the previous cooking to the start of the next cooking. However, when cooking continuously, the sensor temperature at the end of the previous heating cooking varies depending on the energization rate of the heater during the previous cooking, so that the cooking time calculated from the predicted inside temperature is not optimal. There was a case where cooking performance varied. The present invention has been made to solve the above-described problem, and stores the power supply rate of a heater for a predetermined time during the previous heating cooking in a microcomputer, so that the following information is provided in accordance with the power supply rate of the heater for a predetermined time during the previous heating cooking. It is an object of the present invention to provide an oven toaster in which the cooking time is corrected and the variation in cooking performance is reduced, and the user can keep the degree of baking of the object to be heated constant.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a heat source mounted in a cooking chamber, a temperature sensor mounted near the cooking chamber, Time measuring means for measuring the time until the start of cooking, prediction means for predicting the temperature in the cooking chamber from the temperature of the temperature sensor and the time measured by the time measuring means, and the cooking chamber predicted at the start of cooking by the predicting means It has control means for controlling energization to the heat source in a cooking pattern according to the internal temperature, and according to the heat source energization rate within a predetermined time during the previous cooking,
The temperature in the cooking chamber predicted by the prediction means, the measurement time measured by the time measurement means, the duty ratio of the heat source currently cooking, or
The present invention is characterized in that each cooking time is corrected. This makes it possible to determine the optimal heating and cooking time, and to keep the degree of baking of the object to be heated constant.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 is a heat source mounted in a cooking chamber, a temperature sensor mounted in the vicinity of the cooking chamber, and from the end of previous heating cooking to the start of current cooking. Time measuring means for measuring the time until, a predicting means for predicting the temperature in the cooking chamber from the temperature of the temperature sensor and the time measured by the time measuring means, and a cooking chamber predicted at the start of cooking by the predicting means. It has control means for controlling energization to the heat source in a cooking pattern according to the temperature, and corrects the temperature in the cooking chamber predicted by the prediction means according to the heat source energization rate within a predetermined time during the previous cooking. The user can obtain an object to be heated in which the degree of baking is kept constant.

According to a second aspect of the present invention, a heat source mounted in the cooking chamber, a temperature sensor mounted in the vicinity of the cooking chamber, and a time period from the end of the previous heating cooking to the start of the current cooking are set. A time measuring means for measuring, a predicting means for predicting the temperature in the cooking chamber from the temperature of the temperature sensor and the time measured by the time measuring means, and a temperature corresponding to the predicted temperature in the cooking chamber at the start of cooking by the predicting means. It has control means for controlling the energization of the heat source in the cooking pattern, and corrects the measurement time measured by the clocking means according to the heat source energization rate within a predetermined time during the previous cooking. The user can obtain an object to be heated in which the degree of baking is kept constant.

According to a third aspect of the present invention, a heat source mounted in the cooking chamber, a temperature sensor mounted in the vicinity of the cooking chamber, and a time period from the end of the previous heating cooking to the start of the current cooking. A time measuring means for measuring, a predicting means for predicting the temperature in the cooking chamber from the temperature of the temperature sensor and the time measured by the time measuring means, and a temperature corresponding to the predicted temperature in the cooking chamber at the start of cooking by the predicting means. It has control means for controlling energization to the heat source in the cooking pattern, and corrects the heater energization ratio during the current cooking according to the heat source energization ratio within a predetermined time during the previous cooking, Thus, the user can obtain a heated object in which the degree of baking is kept constant.

According to a fourth aspect of the present invention, a heat source mounted in a cooking chamber, a temperature sensor mounted in the vicinity of the cooking chamber, and a time period from the end of the previous heating cooking to the start of the current cooking. A time measuring means for measuring, a predicting means for predicting the temperature in the cooking chamber from the temperature of the temperature sensor and the time measured by the time measuring means, and a temperature corresponding to the predicted temperature in the cooking chamber at the start of cooking by the predicting means. It has control means for controlling energization to the heat source in the cooking pattern, and performs correction of the current cooking time according to the heat source energization rate within a predetermined time during the last cooking. In addition, the user can obtain an object to be heated in which the degree of baking is kept constant.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is a block diagram showing a configuration of an oven toaster according to a first embodiment of the present invention. In FIG. 1, a heating chamber (cooker) 2 is provided in a main body 1.
Is provided in the heating chamber 2, a heater (heat source) 3, a temperature sensor 5 for detecting the temperature of the substrate sensor, and a grill 6 are arranged. 7 is a heating chamber 2 according to a signal from the control means 9.
Prediction means 4 for predicting the inside temperature of the inside, an interval time measurement timer (time measurement means A) 9 for measuring an interval time from the end of the previous heating cooking to the start of the next cooking by a signal from the control means 9; Is a heater 3, an interval time measuring timer 4, a predicting means 7 based on signals from a temperature sensor 5, a predicting means 7, an interval time measuring timer 4, a cooking start key 10, a cancel key 11, and a cooking time measuring timer (time measuring means B) 8. And a control means for outputting a signal to the cooking time measuring timer 8, and 8 is a control means 9
And a cooking time measuring timer (time measuring means B) for measuring the cooking time in response to a signal from the CPU.

The operation and operation of the above configuration will be described in more detail with reference to FIGS. FIG. 2 is a flowchart showing the relationship among the temperature sensor 5, the prediction means 7, the interval time measurement timer 4, the cooking time measurement timer 8, and the control means 9 of the oven toaster according to the first embodiment of the present invention. The power is turned on to the oven toaster, the object to be heated is placed on the grill 6 in the main body 1, and the cooking start key 10 is turned on.
Is turned on (100), the cooking start key 10 outputs a signal to the control means 9, and the temperature input to the control means 9 from the temperature sensor 5 and the interval time measurement if cooking has been performed last time. Control means 9 by timer 4
After the interior temperature at the start of cooking is determined by fuzzy inference from the input interval time, even if the last cooking is performed (101), the energization rate of the heater in the second 120 seconds immediately before the last cooking is 80% or more. If (102), the internal temperature is not corrected, and the duty ratio is 40% or more and less than 80% (1
03), the inside temperature is corrected by + 5 ° C. (104), or if the duty factor is less than 40% (103), the inside temperature is corrected by + 10 ° C. (105). Means 7 and control means 9
, And after determining the cooking time corresponding to the corrected inside temperature (106), the control means 9 further outputs a signal to the cooking time measurement timer 8, and the cooking time measurement timer 8
After resetting (107), start cooking (108)
At the same time, the control means 9 outputs a signal to the cooking time measuring timer 8 to start measuring the cooking time (109).
Let it.

However, when the last cooking time is less than 120 seconds, the time obtained by subtracting the last cooking time from 120 seconds is determined as no power supply, and the power supply rate is calculated. During cooking, the control means 9 outputs a signal to the heater 3 to heat the object to be heated, and if the cancel key 11 is not turned on (110) in the middle,
(110) and subsequent steps are repeated until the cooking time elapses (111).
Turns off the signal output to the heater 3 and ends the cooking (11
2) Then, the control means 9 outputs a signal to the interval time measurement timer 4, resets the interval time measurement timer 4 (113), starts the interval time measurement (114), and repeats (100) and thereafter. . However, on the way, the cancel key 11 is turned on (110)
Then, the cancel key 11 inputs a signal to the control means 9, and the control means 9 turns off the output of the signal to the heater 3, stops the cooking halfway, and repeats (100) and thereafter. In the present embodiment, the time is set to 120 seconds immediately before the end of the previous cooking, but may be set to 150 seconds or 200 seconds if there is sufficient capacity of the microcomputer.

As described above, when the previous cooking is being performed, the temperature in the cooking chamber is corrected at the start of cooking in accordance with the heater energization rate during 120 seconds immediately before the end of the previous cooking, so that the optimum heating is performed. Cooking time can always be determined,
The degree of baking of the object to be heated can be kept constant, and the object to be heated can be deliciously cooked.

(Embodiment 2) FIG. 3 shows the relationship among a temperature sensor 5, a predicting means 7, an interval time measuring timer 4, a cooking time measuring timer 8, and a control means 9 of an oven toaster according to a second embodiment of the present invention. It is a flowchart shown. The configuration of this embodiment is the same as the block diagram shown in the first embodiment. Hereinafter, the present embodiment will be described with reference to the flowchart of FIG. When the power of the oven toaster is turned on, the object to be heated is placed on the grill 6 in the main body 1, and the cooking start key 10 is turned on (100), the cooking start key 10 outputs a signal to the control means 9. Even if the previous cooking has been performed (101), if the power supply rate of the heater in the 120 seconds immediately before the end of the previous cooking is 80% or more (102), the correction to the interval time input by the interval time measurement timer 8 is performed. Not less than 40% to 80%
If it is less than (103), the interval time is corrected by +45 seconds (115), or the duty ratio is less than 40% (10).
In case of 3), the interval time is corrected by +90 seconds (11
6), the temperature input to the control means 9 from the temperature sensor 5 and, if cooking has been performed last time, the interval time after the correction is further used to predict the temperature in the refrigerator at the start of cooking by fuzzy inference, Predicting means 7 by control means 9
In addition, the prediction means 7 outputs a signal to the control means 9 to determine the current cooking time (107).
The control means 9 outputs a signal to the cooking time measuring timer 8,
After resetting the cooking time measurement timer 8 (107), the cooking is started (108), and at the same time, the control means 9 outputs a signal to the cooking time measurement timer 8 to start the measurement of the heating cooking time (109). The operations after (110) and other operations are the same as those in the first embodiment.

As described above, when the previous cooking has been performed, the interval time is corrected at the start of cooking according to the heater energization rate within 120 seconds immediately before the previous cooking is completed, so that the optimum heating cooking time is obtained. Can always be determined, and the degree of baking of the object to be heated can be kept constant, and the object to be heated can be deliciously cooked.

(Embodiment 3) FIG. 4 shows the relationship among a temperature sensor 5, a predicting means 7, an interval time measuring timer 4, a cooking time measuring timer 8, and a control means 9 of an oven toaster according to a third embodiment of the present invention. It is a flowchart shown. The configuration of this embodiment is the same as the block diagram shown in the first embodiment. Hereinafter, the present embodiment will be described with reference to the flowchart of FIG. When the power of the oven toaster is turned on, the object to be heated is placed on the grill 6 in the main body 1, and the cooking start key 10 is turned on (100), the cooking start key 10 outputs a signal to the control means 9. From the temperature input to the control means 9 from the temperature sensor 5 and the interval time input to the control means 9 by the interval time measurement timer 4 if the previous cooking has been performed, the interior of the cooking chamber at the start of cooking by fuzzy inference. After predicting the temperature, the control means 9 outputs a signal to the prediction means 7 and the prediction means 7 outputs a signal to the control means 9 to determine the current cooking time and the heater energization rate (117). (101), if the power supply rate of the heater for 120 seconds immediately before the end of the previous cooking is 80% or more (102), the correction to the power supply rate of the heater of the current cooking is not performed, and the power supply rate is reduced. 0% or more and 80
% (103), the heater duty is corrected by + 5% (118), or the heater duty is less than 40% (10%).
In the case of 3), the heater duty ratio is corrected by + 10% (11
After performing 9), the control means 9 further outputs a signal to the cooking time measurement timer 8, resets the cooking time measurement timer 8 (107), starts cooking (108), and at the same time, the control means 9 A signal is output to the cooking time measuring timer 8 to start measuring the cooking time (109). The operations after (110) and other operations are the same as those in the first embodiment.

As described above, in the case where the previous cooking has been performed, by correcting the heater current for the current cooking at the start of cooking according to the heater current during 120 seconds immediately before the end of the previous cooking, It is possible to determine the optimum heater power-on rate, always keep the degree of baking of the object to be heated constant, and cook the object to be heated deliciously.

(Embodiment 4) FIG. 5 shows the relationship among the temperature sensor 5, the predicting means 7, the interval time measuring timer 4, the cooking time measuring timer 8, and the control means 9 of the oven toaster in the fourth embodiment of the present invention. It is a flowchart shown. The configuration of this embodiment is the same as the block diagram shown in the first embodiment. Hereinafter, the present embodiment will be described with reference to the flowchart of FIG. When the power of the oven toaster is turned on, the object to be heated is placed on the grill 6 in the main body 1, and the cooking start key 10 is turned on (100), the cooking start key 10 outputs a signal to the control means 9. From the temperature input to the control means 9 from the temperature sensor 5 and the interval time input to the control means 9 by the interval time measurement timer 4 if the previous cooking has been performed, the interior of the cooking chamber at the start of cooking by fuzzy inference. The temperature is predicted and the control means 9 outputs a signal to the prediction means 7 and the prediction means 7 outputs a signal to the control means 9 to determine the current cooking time (12).
0), even if the previous cooking has been performed (101), the energization rate of the heater is 80% for 120 seconds immediately before the end of the previous cooking.
In the case of (102) above, the current cooking time is not corrected,
If the duty ratio is 40% or more and less than 80% (103), the current cooking time is corrected by +10 seconds (121), or if the duty ratio is less than 40% (103), the current cooking time is +2.
After the correction (122) of 0 seconds, the control unit 9
Outputs a signal to the cooking time measurement timer 8, resets the cooking time measurement timer 8 (107), and starts cooking (108). At the same time, the control means 9 outputs a signal to the cooking time measurement timer 8, The measurement of the cooking time is started (109). After (110) and other operations,
This is the same as the first embodiment.

As described above, when the previous cooking has been performed, the cooking time is corrected at the start of cooking according to the heater power ratio during 120 seconds immediately before the end of the previous cooking, whereby
It is possible to determine the optimal heating and cooking time, always keep the degree of baking of the object to be heated constant, and cook the object to be heated deliciously.

[0020]

As described above, according to the first aspect of the present invention, when cooking has been performed last time, the internal temperature is predicted from the interval time and the sensor temperature, and within the predetermined time during the previous cooking. The internal temperature is corrected according to the heat source energization rate of the heat source, and the optimal cooking time can be determined from the corrected internal temperature, the degree of baking of the object to be heated is kept constant, and the food is cooked deliciously. An oven toaster that can supply an object to be heated can be provided.

According to the second aspect of the present invention, when the last cooking is performed by correcting the interval time in accordance with the heat source duty ratio within a predetermined time during the previous cooking,
Predict the temperature in the refrigerator from the corrected interval time and sensor temperature, determine the optimal cooking time, keep the baking condition of the heated object constant, and supply the deliciously cooked object Can be provided.

According to the third aspect of the present invention, when cooking is performed last time, the inside temperature is predicted from the interval time and the sensor temperature, and after the heating time and the heat source duty ratio are determined from the inside temperature, By correcting the heat source duty ratio of the current cooking according to the heat source duty ratio within a predetermined time during the last cooking,
It is possible to provide an oven toaster that can determine a heat source energization rate, can maintain a constant degree of baking of the object to be heated, and can supply a deliciously cooked object to be heated.

According to the fourth aspect of the present invention, when cooking is performed last time, the inside temperature is predicted from the interval time and the sensor temperature, and after the current cooking time is determined from the inside temperature, the last cooking is performed. By correcting the current cooking time according to the heat source energization rate within the predetermined time, the optimal cooking time can be determined, the degree of baking of the object to be heated is kept constant, and the delicious cooking is performed. An oven toaster that can supply the heated object to be heated can be provided.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of an oven toaster according to a first embodiment of the present invention.

FIG. 2 is a flowchart showing the relationship between the cooking temperature and the cooking time in the oven toaster corrected according to the heater energization rate within a predetermined time during the previous cooking.

FIG. 3 is a flowchart illustrating a relationship between an interval time and a heating cooking time corrected according to a heater power ratio within a predetermined time during the last cooking of the oven toaster according to the second embodiment of the present invention.

FIG. 4 is a flowchart showing the relationship between the heater power ratio, the current heating cooking time, and the current heater power ratio within a predetermined time during the previous cooking of the oven toaster according to the third embodiment of the present invention.

FIG. 5 is a flowchart showing a relationship between a heater power-on rate and a heating cooking time within a predetermined time during the last cooking of the oven toaster according to the fourth embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Heating room (cooking room) 3 Heater (heat source) 4 Interval time measurement timer (time measuring means A) 5 Temperature sensor 7 Prediction means 8 Cooking time measurement timer (time measuring means B) 9 Control means

Continuation of the front page (72) Inventor Hironobu Tanaka 1006 Kazuma Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. F term (reference) 3L087 AA02 BC06 CC01 DA20 DA24 DA30

Claims (4)

[Claims] 1. A heat source mounted in a cooking chamber, a temperature sensor mounted in the vicinity of the cooking chamber, a time measuring means for measuring a time from the end of the previous heating cooking to the start of the current cooking, Prediction means for predicting the cooking chamber temperature from the temperature of the temperature sensor and the time measured by the time measurement means; and a cooking pattern corresponding to the cooking chamber temperature predicted at the start of cooking by the prediction means. An oven toaster having control means for controlling energization and correcting the temperature in the cooking chamber predicted by the prediction means according to the heat source duty ratio within a predetermined time during the last cooking. 2. A heat source mounted in the cooking chamber, a temperature sensor mounted in the vicinity of the cooking chamber, a time measuring means for measuring a time from the end of the previous heating cooking to the start of the current cooking, Prediction means for predicting the cooking chamber temperature from the temperature of the temperature sensor and the time measured by the time measurement means; and a cooking pattern corresponding to the cooking chamber temperature predicted at the start of cooking by the prediction means. An oven toaster having control means for controlling energization and correcting the measurement time measured by the time measurement means according to the heat source duty ratio within a predetermined time during the previous cooking. 3. A heat source mounted in the cooking chamber, a temperature sensor mounted in the vicinity of the cooking chamber, a timer for measuring the time from the end of the previous heating cooking to the start of the current cooking, Prediction means for predicting the cooking chamber temperature from the temperature of the temperature sensor and the time measured by the time measurement means; and a cooking pattern corresponding to the cooking chamber temperature predicted at the start of cooking by the prediction means. An oven toaster having control means for controlling energization, wherein the heater energization during current cooking is corrected in accordance with the heat source energization within a predetermined time during previous cooking. 4. A heat source mounted in the cooking chamber, a temperature sensor mounted in the vicinity of the cooking chamber, time measuring means for measuring a time from the end of previous heating cooking to the start of current cooking, Prediction means for predicting the cooking chamber temperature from the temperature of the temperature sensor and the time measured by the time measurement means; and a cooking pattern corresponding to the cooking chamber temperature predicted at the start of cooking by the prediction means. An oven toaster having control means for controlling energization, wherein the current cooking time is corrected in accordance with the heat source energization rate within a predetermined time during previous cooking.