JPS62128480A - Radio frequency heating cooker - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a high-frequency heating cooking device capable of performing constant cooking corresponding to m0 of a good cooked product to be heated.
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[Technical blueprint of invention and its problems]

This type of high-frequency heating cooking device, as shown in Figure 3,
Shelf board 3 and heater 4 on which food 2 is placed inside oven 1
At the same time, the magnetron 5 provided outside the oven 1 and the oven 1 are connected by a waveguide 6, and the microwaves emitted from the magnetron 5 are guided to the oven 1 via the waveguide 6, and placed on the shelf board 3. Food 2 is heated and cooked.

On the other hand, the magnetron 5 and heater 4 are controlled by a microcomputer.
It is controlled by l'g device 7. That is, the microcomputer control device 7 receives detection signals from the temperature sensor 8 and the gas sensor 9 to control the energization time of the magnetron 5 and the heater 4.

However, in the above-mentioned type of high-frequency heating cooking, the cooked items,
When the purpose is the same but the quantities are different, even if the tendency of generation of steam and gas during heating of food is the same, the tendency of increase is different, so cooking with a fixed heating pattern will result in The temperature of the finished food may fluctuate, making it impossible to cook the food properly and requiring the food to be cooked again.Therefore, the weight of the food is detected by a weight sensor 10 attached to the shelf board 3. A technical means has also been proposed in which the detection signals of 10 are sent to the microcomputer control device 7 to correct the heating pattern input by the microcomputer so that food can be cooked appropriately, but the weight sensor 10 is large and upright. Therefore, it lacks practicality, and the entire device becomes large and heavy, which poses problems.

Furthermore, when a weight sensor is installed, it is necessary to correct mm (zero point correction), which is difficult for users to use.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide a high-frequency heating cooking device that can properly cook food to 1q even if the denominator of the food to be cooked is different. .

[Summary of the invention]

The present invention allows a microcomputer control device to perform standard quantity heating of steam or gas generation variation patterns in heating 11.1. The temperature sensor or gas sensor detects the steam or gas in the cooked food, and the microcomputer control device compares the amount of water vapor or gas detected by the temperature sensor or gas sensor. It is cooked under certain conditions.

[Embodiments of the invention]

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

FIG. 1 is a diagram showing a standard heating pattern of a microcomputer control device incorporated in a high-frequency heating cooking device. In the figure, the vertical axis is the gas sensor output (V), and the horizontal axis is the cooking time. The above cooking time includes a cleaning time tr for exhausting residual gas in the oven 1 and a heating time t for cooking the food 2. and time t1 at which the transition to the second step takes place.

That is, during the heating time "to" following the cleaning time t, the food 2 is cooked, and the water vapor or gas coming out of the food 2 is detected by the gas sensor 9. The curve is falling.

When this curve changes by a constant amount (α・V) from the maximum value (■5Illax), the heating pattern maX is shifted from 0 to tl, and the output is increased from 600W to 200W.
W, t=toxβ.

On the other hand, the above-mentioned microcomputer control device has a standard minute heating pattern (which patterns the changes in water vapor or gas during heating).
For example, if we take miso soup as an example, there are 1, 2, and 4 cups of miso soup. After heating for a period of time, a change group from the 5Ilax value) is incorporated, and by comparing the detection signal of the gas sensor 9, etc., similar results can be obtained. The A semi-portion heating pattern is selected, and the cooking time of the food is corrected according to the selected standard portion heating pattern.

As shown in FIG. 2, the standard heating pattern for one cup of rice, one cup of miso soup, two cups of miso soup, four cups of miso soup, and 150 g of potatoes is installed in the microcomputer control device 7.
When the food to be cooked is cooked, the gas sensor 9 detects gas m, and sends this detection signal to the microcomputer control device 7, so that the microcomputer control device outputs a standard heating pattern m'iff for the food to be cooked. By setting the remaining time until the end of the heating time, proper cooking can be performed.

In addition, if you use the conventional method, instructions are given regardless of the amount or type of food, so if you cut down on the standard heating pattern in terms of α・vSIaX, the heating temperature will be 93°C for one cup of miso soup, 75°C for two cups of miso soup, For 4 cups of miso soup, the temperature is 55°C (points A, B, and C in Figure 1), and only 2 cups of miso soup meet the heating conditions for the miso soup at the end of cooking. It will end up being too much. Symbols in Figure 1.

E is the ideal switching λ point corresponding to the symbols A, B, and C.

In the above embodiment, to prevent the gas sensor from misreading 84-J. Accuracy can be increased by reading twice, once after a certain amount of time has elapsed, and again after a few seconds. d'3 After a certain period of time (at time To).

Foods that are not incorporated in the microcomputer control 711 device 7,
For example, if the ingredients to be added to the miso soup are special, the microcomputer controller will not be able to find similar data, so in this case, heating will be stopped after a certain period of time for safety reasons. For example, choose the item with the shortest cooking time (
In Figure 1, the end time is set to match a bowl of rice). This prevents the food from becoming overheated and causing smoke or burning.

〔Effect of the invention〕

As described above, according to the present invention, the heating time of the food is determined by comparing and calculating the gas change data during heating detected by the gas sensor with the standard heating pattern pre-installed in the microcomputer zi control device. Therefore, unlike conventional devices of this type, instructions for the denominator are not required, and similar good quality products can be cooked using one key. <E (Appropriate cooking can be performed depending on the difference in the number of items to be prepared, and therefore, there is no need for small-sized items, so the overall device can be made smaller and lighter.

[Brief explanation of drawings]

Figure 1 is a diagram showing the target heating pattern (Xj) incorporated in the microcomputer control device, and Figure 2 is a diagram showing the standard denominator heating pattern and food product incorporated into the microcomputer a+'l tall device of the high-frequency heating cooking device according to the present invention. Fig. 3 is a diagram showing a standard example of a high-frequency heating cooking device. 1... Oven, 2... Food, 5... Magnet 1-
Ron, 7...Microcomputer control device, 9...Gas sensor, tr...Cleaning time, to...Heating time,
tl...Transition time. Island 1 Figure 2 Prisoner

Claims (1)

[Claims] An oven with food shelf boards, a magnetron installed outside the oven, a waveguide connecting the magnetron and the oven, a temperature sensor and a gas sensor attached to the oven, and signals from the temperature sensor and gas sensor. In high-frequency heating cooking equipment that has a microcomputer control device that controls the magnetron, it is a standard that allows cooking items with a certain pattern to be cooked all at once with a single key operation, and that patterns changes in water vapor or gas during heating. The heating pattern for the quantity is incorporated into the microcomputer control device, the detection signal of the temperature sensor or gas sensor is compared and calculated with the heating pattern for the standard quantity, one standard quantity heating pattern is selected, and the magnetron's energization time is set. High frequency heating cooking equipment.