JPS5847934A - High-frequency heater - Google Patents

Abstract

PURPOSE:To enhance finish of cooking irrespective of the amount of food or the initial temperature, by a method wherein a weight loss ratio is set on the basis of the kind and the amount of the matter to be cooked, and a heating member is controlled when an actual weight loss ratio reaches a set point, in a high- frequency heater. CONSTITUTION:Information from a cooking menu setting part 1 and initial weight information from a weight-detecting part 6 are inputted into a weight loss ratio setting part 10, then a target weight loss ratio is set and is inputted into a controlling part 12. On the other hand, the weight of the food being cooked is inputted from the part 6 into a weight loss ratio calculating part 11, where the weight loss ratio for each predetermined period of time is calculated and is inputted into the controlling part 12. The controlling part 12 stops heating actions of a high-frequency heating means 8 and a heater heating means 9 when it is discriminated that the actual weight loss ratio calculated by the part 11 coincides with the target weight loss ratio set by the part 10. Accordingly, setting of heating time is unnecessitated, and food can be cooked to the optimum finish irrespective of the amount of the food or the initial temperature.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a high frequency heating device. The purpose is to take advantage of the fact that the weight of the object to be heated, such as food, decreases as the %MJ process progresses, and to detect the weight loss rate of the object to be heated to the optimum state. shall be.

Generally, in high-frequency heating, the heating time is lengthened especially when heating a large amount of food, and the reverse Khn heating time is shortened when a small amount of food is being heated. Currently, the heating time is set by the user using a timer based on intuition, experience, and cooking books, etc. However, since the amount of one food and the heating time are not directly proportional, there may be excess or deficiency in heating. Furthermore, it is necessary to adjust the heating time depending on the W-stage dusting state of the food, making it difficult to always heat the food to a temperature at which it is ready to eat.

Also for heating heaters such as oven dishes.

The method used is to heat the prize for one hour regardless of the amount, but in order to obtain the same finished product, it is necessary to shorten the total heating time for a small amount and slightly lengthen the heating time for a large amount. It was a very difficult book to adjust the time.

This invention was made in order to eliminate the above-mentioned drawbacks, and since the water in the food evaporates when the food is heated and the weight of the food decreases, the food type 1tvi-
The weight loss rate is detected and the weight loss rate is calculated, and the heating operation is controlled when this value reaches half the target weight loss set in advance for each type of cooking and the initial weight of the food. This makes it possible to always make food ready to eat without having to set a timer.

The details of this mechanism will be explained below with reference to the illustrated embodiments.

Figures 1 and 2 show an example of the high-frequency heating device of the present invention (II is a keyboard (31 keys) provided on the microwave main body (2) that allows you to set the type of cooking and perform the corresponding cooking. Cooking type setting section that outputs type information. (4) is the heating chamber (5:
A mounting table that is rotatably held. (61 is the mounting stand mentioned above (
4) A weight detection unit that detects the weight of the food placed on the tray and outputs weight information accordingly. (71 indicates the strength or weakness of the high-frequency output during high-frequency heating, or the temperature #L of Heating condition selection unit to select. (81 is the heating means for supplying high frequency energy to the above-mentioned Calorie heat chamber (51) during high frequency heating) M liquid heating means.

+9) is a heater heating means for heating the heating chamber (5) with a heater when heating the heater. tlol is a reduction unit that selects a target weight loss rate value for 0 foods based on the food type information and the initial weight information of the food in the weight detection unit (61) from preset weight loss rate values for the glazes. Rate selection department. (11
) is a weight loss rate calculation unit that calculates the weight loss rate value of the food at each predetermined time from the initial 1iit information of the weight detection unit (61) and the weight information during food cooking. When the g and kk rate values calculated by the rate calculation unit +111 reach the target weight loss rate value selected in the reduction rate selection unit (1), the high frequency heating means (81 and the heater heating means (9) This is a control unit that stops the heating operation of the

The operation when food is actually heated in the high frequency heating device configured as above will be explained.

First, place the food to be cooked on the mounting table (4) in the heating chamber (51), and input the type of cooking using the keyboard + 31 key (
For example, if you want to reheat boiled rice, press the corresponding key. - Ball type setting section (11 outputs the corresponding cooking type information) 1 Weight detection section (61 indicates the initial weight corresponding to the food weight) Outputs information. Heating condition selection section (71
receives the above cooking type information and selects the heating conditions applicable to this cooking from among the secret heating conditions set and memorized in advance (for example, if reheating rice, output is high with high frequency heating, If it is a sponge cake, the heating chamber temperature should be set to 150℃ using a heater.

In addition, the copying amount rate selection unit (1 (I selects the target weight loss rate value based on the cooking type information and the initial weight information (for example, 3%, 301 for reheating cooked rice 1002)!
In that case, it is selected as 3.2chi). then 0
w4 When the process start switch (N not shown)'fr is pressed, the high frequency heating means (81) or the heater heating means (9) is activated and the food is heated.
l receives the food electricity storage information during cooking (heating) detected and output by the weight detection section 16+, and based on the above initial weight information, the weight loss rate = (initial weight of food - all salt products during cooking) Weight) The initial weight of the raw food product x 100 cm is calculated at predetermined intervals (for example, ij 1 second). When the food is heated and the temperature rises, the moisture in the food starts to evaporate, so the weight of the food gradually becomes lighter, and the weight loss rate value calculated by the above-mentioned weight loss rate (till) gradually increases. Then, as the heating progresses and the calculated value of this weight loss rate reaches half the value of the weight loss rate (at this time, the food is in the optimum 4 temperature state).
The first part α2 detects this and stops the heating operation of the high frequency heating means (81) and the heater heating means (9).

In this way, when food 0 is heated, the moisture in the food evaporates as the temperature rises and the weight becomes lighter, which is used to detect the weight loss rate of food 1.

When this value reaches the target weight loss rate value selected based on the initial weight of the food and the Ill., the busy heating operation is automatically stopped, and the troublesome setting of the heating time using a timer is unnecessary. .

It should be noted that this invention is not limited to the above embodiments, and it goes without saying that various modifications can be made without departing from the gist of the invention.

As described above, the present invention includes a cooking type setting section and a weight detection section of the heated object.

A weight loss rate calculation section that calculates the weight loss rate of the object to be heated, and a weight loss rate selection section that selects a target weight loss rate from the type of cooking and the initial weight of the object to be heated are provided. Since the configuration is equipped with a control unit that controls the heating means when the rate value reaches the target weight loss rate value, there is no need to set the heating time, and the finished product is always optimal regardless of the amount of food or the initial temperature. The purpose of the present invention is to provide a highly practical high-frequency heating device that can heat up to 100%.

[Brief explanation of drawings]

FIG. 1 is a front view showing a practical example of the present invention. FIG. 2 is a block diagram of the electrical system. Note that the same reference numerals in Figure 1 indicate the same or equivalent parts, the crest is the cooking type setting section, (6; is the overlay detection section, the shout is the weight loss rate selection section, ul) is the weight loss rate calculation section, and (121 is the control section). Agent: Shin Kuzuno −

Claims (1)

[Claims] A high-frequency heating device comprising a heating chamber, a table for placing an object to be heated provided in the heating chamber, high-frequency heating means for supplying high-frequency energy to the heating chamber, and heater heating means for heating the heating chamber with a heater. , a cooking type setting section for setting the type of #1 cooking, a weight detection section for detecting the weight t of the heated object placed on the heated object mounting table, and a cooking type setting section for setting the cooking type setting section. a weight loss rate selection section that selects a target weight loss rate value of the object to be heated based on cooking type information and initial weight information of the object detected by the weight detection section; A weight loss rate calculation unit calculates the weight loss rate of the weight of the heated object at each time from this wave force a weight information during heating of the heated object, and the &t* value calculated by this weight loss rate calculation unit is the target weight loss mentioned above. A high frequency ηU heat vi system characterized by comprising: a control unit that controls the heating operation tube for the heated object when the wave force a reaches a rate value.