JPS60258896A - High frequency heater - 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 Field of the Invention The present invention relates to a thawing cooking method using a high frequency heating device, and more particularly to one configured to automatically perform thawing and cooking sequentially.

Conventional Structure and Problems Defrosting of frozen foods by microwave heating can be completed in an extremely short time and the quality after thawing is good, so it has been put to practical use more widely than ever before. Here, we sell frozen cooked foods and frozen vegetables like Minoknu Vegetables.
After thawing - I will mention the so-called thawing cooking method, which involves heating the food.

Conventionally, such defrosting cooking methods generally involve heating at a constant power from defrosting to cooking.

Then, food 75 is detected using gas sensors and infrared sensors.
Detects when the rice is hot and automatically finishes cooking.

This traditional thawing cooking method requires less heating time, but on the other hand, cold spots tend to appear in the center of the food, and homogeneity is lost between areas that start melting quickly and areas that melt slowly, resulting in temperature fluctuations. Even if there is no difference in quality, the problem is that the finish is sluggish. This is especially noticeable when there is a large amount of food. Therefore, when thawing a large amount of curry or shichi, etc., it was necessary to move the food to the refrigerator or indoors to defrost it quickly before cooking.

OBJECTS OF THE INVENTION The present invention solves the two drawbacks of the prior art, and aims to provide a zero-heat cooker that can reduce the temperature difference of food during thawing and cooking, improve homogeneity, and quickly cook food. purpose.

In order to achieve the second object of ``Structure of the Invention'', the high frequency heating device of the present invention is provided with a weight setting means for inputting the weight of the frozen food, and a finish sensor for detecting the completion of heating of the object to be heated. Once the weight of the food is set, the food is first thawed for a time corresponding to the weight, and then the food is cooked automatically using a finished sensor, which allows the food to be defrosted and cooked quickly, uniformly, and with small temperature differences.

Description of examples 1 Hereinafter, the embodiments of the present invention will be described based on the drawings ( explain.

FIG. 1 is a perspective view of a high frequency heating device according to the present invention.

A door body 2 is pivotally supported on the front surface of the main body 1 so as to be freely openable and closable, and an operating spring/1. /3 is arranged. An auto key is provided on the operating spring /l/3, and a thawing/cooking key 4 according to the present invention is provided in this auto key. The timer knob 5 is used to set the heating time, but when the thawing cooking key 4 is pressed, it functions as a weight setting means.

FIG. 2 is a block diagram showing one embodiment of the configuration of the present invention. Commands inputted from the thawing/cooking key 4 on the operating spring /l/3 and the weight setting means 5 are decoded by the control section 6. Then, the control unit 6 starts defrosting and cooking the sluggish frozen food placed in the heating chamber 7 with zero wave force. The heating is controlled by supplying power to a magnetron, which is a high frequency generating means 10, through a driver 9.

Two different heating patterns are selected depending on when the weight is set and when the heating is suddenly started without setting the weight. In other words, after the thawed cooked cake 4 is pressed, the timer knob 5 serving as a weight setting means is turned and the weight is input, and in the other case, the start key is pressed immediately after the thawed cooked cake 4 is pressed. There are cases where The choice is left to the user, and when thawing large pieces of meat that tend to vary in temperature, or curry or nchi, which tends to end up mushy, set the weight and carefully defrost before cooking. However, for foods such as frozen shumai and minokunu vegetables, which are small in quantity, do not exhibit temperature differences easily, and do not impair homogeneity, it is easier to defrost and cook them using traditional methods. Therefore, depending on the food, the user should choose the convenience or the convenience.
You can choose whether you want the best flavor by performing or omitting the weight setting operation.

Now, reference numeral 11 denotes a finishing sensor, and in this embodiment, a gas sensor that reacts to steam or gas generated from the object to be heated is used. The gas sensor 11 is disposed within the exhaust guide 12 and detects steam or gas exhausted by the ventilation fan 13. Note that the mounting plate 14 is rotationally driven by the morph 15, and uneven heating is improved. 16 is a detection circuit of the gas sensor.

6' - As the gas sensor 1, the relative humidity sensor ``Humiceram'' manufactured by Matsushita, the absolute humidity sensor ``Neo Humiceram'', the gas sensor manufactured by Figaro, etc. can be used.

Furthermore, as a finishing sensor, an electric type infrared sensor or a SAW sensor using surface acoustic waves can be used.

FIG. 3 shows a heating pattern for thawing cooking in an embodiment using a gas sensor as a finishing sensor, and represents a case where weight setting is performed. (a) Figure shows the state of microwave output (
b) The figure shows the amount of steam generated from food. Heating is formed by a defrosting mode DEF"' and a cooking mode C00K", and the defrosting mode is further divided into three small modes. First, T1 is heated by microwave at full power,
1. The process ends when 1W (K1: constant, W: set weight) has elapsed. In this mode, frozen foods are heated all at once,
Before the surface is boiled, the next T2 mode, that is, the rest mode' is entered. The T time is calculated by K 2 W (K2: constant), and carryover heating is performed during this time to eliminate temperature unevenness.

The following T3 mode is a mode in which the power is reduced to prevent the surface from boiling while thawing the center of the food.
Calculate the time using 3 W (K3: constant).

Now, when the defrosting is completed by this procedure, the cooking mode is fully shifted to "C00K". Here, the time t4 when the amount of steam generated from the food reaches a predetermined value Δh is counted,
Based on this, 4t 4(k
4: constant) is calculated. k4 may be zero.

Next, a heating pattern without weight setting will be explained using FIG. 4. At this time, there is only one mode of power and heat, and the food is defrosted and cooked all at once in the "DEF-COOK" mode. Then, the time t until a predetermined amount of steam Δh is detected is counted, and this is calculated as T=t+Kt(K
: constant) determines the heating time.

+1 As described above, the thawing cooking of the present invention uses the weight setting means and the finish sensor to automatically cook the frozen food in an optimal pattern depending on convenience or finish of the frozen food.

Effects of the Invention As described above, according to the present invention, the following effects can be obtained.

(1) By setting the weight of large amounts of curry, chili, chunks of meat, etc. that tend to boil locally or become cold in the center, you can defrost and cook highly uniformly with small temperature differences and no sloppiness. .

(2) You can easily defrost and cook small amounts of shumai, frozen vegetables, etc., which tend to be overcooked due to oil oozing and water content release, at the appropriate finishing temperature without having to set the weight.

(3) With one defrosting cooking key, the user can select various types of frozen foods by setting their weight or not, allowing for efficient automatic defrosting cooking.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the main body of a high-frequency heating device showing an embodiment of the present invention, and FIG. 2 is a block diagram showing an embodiment of the same configuration.
FIG. 3 is a diagram showing an example 9 of the force n heating pattern, and FIG. 4 is a diagram showing an example of the heating pattern when no weight is set. 4-... Thawing cooking key, 5... Weight setting means, 6...
. . . Control unit, 7. 7 JD heat chamber, 8 . . . Heated object, 10 . . . High frequency generation means, 11 . Figure 1! Figure 2 Otsu QF, '(F'8 control 5 choice = 3 ＼ 9 Kanji round path to 1lI2/ρ -1-,. No. Diff Sea - 5 / 4 Figure 3 (0.) (h)

Claims (1)

[Claims] A heating chamber in which the object to be heated is placed, a high frequency generating means coupled to this heating chamber, a control section for controlling power supply to the high frequency generating means, and a weight for inputting the weight of the object to be heated to this control section. It consists of a setting means, a finish sensor that detects the completion of heating of the object to be heated, and a key that commands thawing cooking,
When the weight of the object to be heated is inputted by the weight setting means together with the input of the key, the control section performs defrosting at a low output for a time corresponding to the set weight, and then performs cooking at a high output; A high frequency heating device configured to control completion of heating using the finish sensor.