JP2512023B2 - Cooking device - Google Patents

Description

TECHNICAL FIELD The present invention relates to an oven toaster used in general households,
The present invention relates to a cooking device such as an oven and a microwave oven.

2. Description of the Related Art Conventionally, in this type of cooker, for example, Japanese Patent Laid-Open No.
As disclosed in Japanese Laid-Open Patent Publication No. 146888, the heating time is controlled by a delay timer to perform cooking, and the heater is automatically turned off. In the cooker configured in this way, the user must set the delay timer each time according to the menu (for example, bread and rice cakes) and the amount of food to be cooked. I had to change the ratio etc. with the changeover switch.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in such a conventional configuration, when baking bread, the user had to set the timer each time according to the thickness and the number of bread pieces. Furthermore, if the food is kept in the same ratio as bread, the burning condition of the front and back will be poor. Therefore, it was necessary to provide a changeover switch to change the ratio of the upper and lower heaters. If the same amount of food was always baked in the same amount, it was not necessary to set it again, but if the amount of food or amount was changed, the user had to set it again, which was inconvenient.

The present invention is to solve such a problem, focusing on the difference in weight per unit area of bread, rice cake, etc., automatically determining the type and amount of food, the heating time and the heating ratio of the upper and lower heaters. The purpose of the present invention is to provide a cooker which is easy to operate and easy to operate by allowing the user to put food into the inside and cook it by pressing the start switch.

Means for Solving the Problems In order to solve the above problems, the cooker of the present invention has a weight measuring means for measuring the weight of an object to be cooked such as food and an area measurement for measuring the area of the object to be cooked. Means, menu determining means for receiving signals from the weight measuring means and the area measuring means to perform a calculation to determine a menu of the food to be cooked, and a signal of the menu determining means to determine a heating pattern of the food to be cooked. The pattern determining means and the heating means for heating the food by the signal of the pattern determining means.

Action According to the above configuration, focusing on the difference in weight per unit area of food such as bread and rice cake, automatically determine the type and amount of food, determine the heating time and the heating ratio of the upper and lower heaters,
Since it can be cooked, the user only needs to put the food inside and press the start switch to cook, thus enabling automatic cooking without worrying about the type and amount of food and the operation. It is possible to provide a simple and easy-to-use cooking device.

Embodiment An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a block diagram of a cooking device according to an embodiment of the present invention, in which reference numeral 1 denotes an object to be cooked, which is food such as bread and rice cake. Reference numeral 2 is a weight measuring means for measuring the weight of the food 1 and 3 is area measuring means for measuring the area of the food 1. Reference numeral 4 is a menu determining means for receiving signals from the weight measuring means 2 and the area measuring means 3 to perform a calculation to determine the mass of the food 1 to be cooked, and 5 is a signal from the menu determining means 4 for the food 1 to be cooked. It is a pattern determining means for determining the heating pattern. Reference numeral 6 denotes a heating means, which heats the food 1 by the signal from the pattern determining means 5.

FIG. 2 is a circuit diagram of an oven toaster according to an embodiment of the present invention, and FIG. 3 is a partial sectional view of the oven toaster. 7 is a microcomputer, which is composed of CPU, ROM, RAM and input / output ports,
This is a so-called one-chip microcomputer. 2a and 2b are electrodes, the electrode 2a is fixed, and the electrode 2b is attached to a metal net 8 on which the food 1 is placed. In addition, the net 8 is a spring 9
It is suspended by a and 9b, and when the food 1 is placed on the net 8, the net 8 is lowered by its weight and at the same time the electrodes are
db decreases, and as a result, the capacitance between the electrodes 2a and 2b changes,
This change is input to the input port of the microcomputer 7 via the A / D converter 10. As a result, the capacitance change between the electrodes 2a and 2b is converted into a binary code and read by the microcomputer 7. 3a is a luminous body,
The light-emitting body 3a is attached to the upper part of the refrigerator, and 3b to 3i are phototransistors, which are attached to the lower part of the refrigerator, receive the light of the light-emitting body 3a, and the food 1 is placed on the net 8. When the light is blocked, the light is blocked and turned off, and the respective signals are input to the micro computer 7. A start switch 11 is input to the microcomputer 7 so as to determine whether or not the start switch 11 has been pressed.
Reference numeral 12 is an AC power source, and the AC power source 12 is connected to a series circuit of an upper heater 6a, a lower heater 6b and a relay contact 5a, 5b for heating an object 1 to be cooked placed on a net 8, and a microcomputer 7 The relay contacts 5a and 5b are configured to be opened and closed by receiving a signal from the output port and applying a current to the relay coils 5e and 5f via the transistors 5c and 5d. Reference numeral 13 is a DC power supply for operating the above-mentioned circuit.

Next, the operation of the oven toaster configured as described above will be described. FIG. 4 shows a flow chart of a program stored in the ROM of the microcomputer 7. The operation will be described according to the procedure of the program shown in this flow chart.

First, in step 1, it is determined whether or not the start switch 11 has been pressed, and it continues until it is pressed, and when it is pressed, the process proceeds to step 2. In step 2, among the phototransistors 3b to 3i, the number of phototransistors that are turned off is counted, and the number is stored as N. In step 3,
The capacitance between the electrodes 2a and 2b is measured, converted into weight, the value is stored as G, and the process proceeds to step 4. In step 4, G is divided by N to determine whether the value is 30 or more,
If G / N ≧ 30, in step 5, T ₁ = 2 × N + 1 is set, and in step 6, the upper heater 6a and the lower heater 6b are each energized by 1/2, and the process proceeds to step 7. In step 7, it is determined whether or not the energization time T ₀ has exceeded T ₁ minutes. If it does not exceed T ₁ , the process returns to step 6;
Then, the energization of both the upper and lower heaters 6a and 6b is stopped and the process returns to step 1.

If G / N <30 in step 4, T ₁ = in step 9
Assuming that 0.5 × N + 0.5, in step 10, the upper and lower heaters 6a, 6a
Energize both b and proceed to step 11. In step 11, it is determined whether the energization time T ₀ minutes exceeds T ₁ minutes. If not, the process returns to step 10, and if it exceeds, the process proceeds to step 8.

Here, in the case of step 4, G / N ≧ 30, and in the case of pan, G / N <30.

In this way, in this embodiment, the difference between the bread and the stick is determined by the weight per unit area, the heating time and the heating ratio of the upper and lower heaters 6a, 6b are determined, and cooking can be performed. The user can put the bread or rice cake inside and cook by simply pressing the start switch 11.

Effects of the Invention According to the present invention as is clear from the description of the above examples, focusing on the difference in weight per unit area of food such as bread and rice cake, the type and amount of food is automatically determined, Since the cooking time can be determined by determining the heating time and the heating ratio of the upper and lower heaters, the user can put the food in the cooker and press the start switch to cook the food. It is possible to provide a cooker that is easy to operate and easy to use because it enables automatic cooking without worrying about the type and quantity.

[Brief description of drawings]

FIG. 1 is a block diagram of a cooker in one embodiment of the present invention, FIG. 2 is a circuit diagram of an oven toaster showing one embodiment of the present invention, and FIG. 3 is a cutaway front view of the oven toaster.
FIG. 4 is a flow chart showing an example of a program of the oven toaster. 1 ... Object to be cooked, 2 ... Weight measuring means, 2a, 2b ... Electrodes, 3 ... Area measuring means, 3a ... Light emitter, 3b to 3i ... Phototransistor, 4 ... Menu determining means, 5 ...... Pattern determining means, 6 ...... Heating means, 6a ...... Upper heater, 6b ...
… Lower heater, 7 …… Microcomputer, 11 …… Start switch.

Claims (1)

(57) [Claims] 1. A weight measuring means for measuring the weight of an object to be cooked such as food, and an area measuring means for measuring the area of the object to be cooked,
Menu deciding means for deciding the menu of the food to be cooked by receiving signals from the weight measuring means and the area measuring means, and a pattern deciding to decide the heating pattern of the food to be cooked by the signal of the menu deciding means. A cooking device comprising means and heating means for heating an object to be cooked by a signal from the pattern determining means.