JPH0123687B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heating cooking device.As cooking progresses, when an object to be heated such as food is heated and water starts to evaporate, the weight of the object to be heated decreases rapidly in a short period of time. By utilizing the fact that The purpose is to heat it to a state.

In general, the heating time of heating cooking devices is currently set using a timer based on the user's intuition and experience as well as cookbooks, etc., but this heating time can be adjusted depending on the amount of food, initial temperature, etc. It was very difficult to set the time and it was difficult to consistently heat the food to a temperature suitable for eating.

This invention was made to eliminate the above-mentioned drawbacks.When food is heated and reaches a certain temperature, the evaporation of water in the food becomes active and the weight of the food decreases rapidly. By controlling the subsequent operation of the heating means, it is possible to eliminate the need for troublesome timer settings for heating time and to always finish the food in a ready-to-eat state.

The details of the present invention will be explained below with reference to the illustrated embodiments.

FIGS. 1 and 2 show an example of the heating cooking apparatus of the present invention, and 1 is a heating chamber provided in the heater main body 2. FIG. 3 is a mounting table rotatably held on the bottom surface of the heating chamber 1; Reference numeral 4 denotes a cooking type setting section for setting the cooking type using the keys of the keyboard 5 provided on the main body 2 and outputting cooking type information corresponding to the cooking type. Reference numeral 6 denotes a weight detection unit that detects the weight of the food placed on the placement table 3 and outputs weight information corresponding to the weight. Reference numeral 7 denotes a weight change calculation unit that calculates the rate of weight change per unit time of the food item every moment based on the weight information from the weight detection unit 6. Reference numeral 8 denotes a signal output unit that detects when the weight change rate calculated by the weight change rate calculation unit 7 reaches a predetermined value and outputs a signal. 9 selects the strength of the high-frequency output during high-frequency heating or the set temperature of the heating chamber 1 during heater heating according to the cooking type information from various preset heating conditions, and also selects the above-mentioned signal. A heating control section that, when receiving the signal from the output section 8, controls the subsequent heating time and heating means based on the cooking type information. Reference numeral 10 denotes high-frequency heating means for supplying high-frequency energy to the heating chamber 1 during high-frequency heating. Reference numeral 11 denotes a heater heating means for heating the heating chamber 1 with a heater when heating the heater.

In the heating cooking device configured as above,
The operation when actually cooking food will be explained.

First, place the food to be cooked on the placing table 3 in the heating chamber 1, and enter the cooking type using the keys on the keyboard 5 (for example, press the corresponding key for stewed food) to set the cooking type. The unit 4 outputs corresponding cooking type information. The heating control unit 9 selects heating conditions according to this cooking type information from various preset heating conditions (for example,
“Strong” output with high frequency heating). Next, when a cooking start switch (not shown) is pressed, the high-frequency heating means is activated, and high-frequency energy from the heating chamber 1 is supplied to heat the food. Here, the weight detection unit 6 detects the weight of the food being cooked and outputs the weight information moment by moment.
The weight change rate calculation unit 7 receives this output and calculates the weight change rate value per unit time every moment. An example of the relationship between the heating time T and the food weight W is shown in FIG. , while the heating time is short, the food is not warm enough and the moisture contained in the food is not actively evaporating, so the rate of change in the food weight W is small as shown in A in Figure 3, and the above-mentioned Since the weight change rate value per unit time calculated by the weight change rate calculating section 7 does not reach the predetermined value, no output is generated and heating continues in this state. When the heating progresses and the food becomes sufficiently hot, the moisture in the food evaporates actively, and the weight W of the food rapidly decreases as shown in B in FIG. Therefore, the weight change rate value per unit time calculated by the weight change rate calculation section 7 increases as it reaches a predetermined position, so the signal output section 8 detects this and outputs a signal, and the heating control section 9 Upon receiving the signal, the subsequent heating means and heating time are automatically set based on the cooking type information (for example, in the case of stewed dishes, the heater heats for 2 hours, or the high-frequency heating output is set to "low" for 2 hours). (as in time).

In this way, when the food is sufficiently heated, water evaporation in the food becomes active and the weight change rate per unit time increases, and the subsequent heating conditions, that is, the heating means and heating time, are automatically adjusted. This method eliminates the need to set a timer for cumbersome heating times, and also allows food to be cooked to a ready-to-eat state.

Note that this invention is not limited to the stew dishes shown in the above embodiments, but can be applied to various types of cooking, and it goes without saying that various modifications can be made without changing the gist of the invention. .

As described above, the present invention includes a weight change rate calculation section that calculates a weight change rate value per unit time of the heated object based on weight information from a weight detection section that detects the weight of the heated object. A signal output section that detects when the weight change rate value reaches a predetermined value due to sufficient heating of the heated object and active moisture evaporation and outputs a signal, and a signal output section that outputs a signal after receiving this output. The present invention provides a practically excellent heating cooking device that is equipped with a heating control section that controls the operation of the means, so there is no need to set a heating time, and the heating can always be heated to an optimal finished state. .

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment of the present invention. Figure 2 is a block diagram of the electrical system. FIG. 3 is a graph showing an example of the relationship between heating time and food weight. In addition, the same reference numerals in the figures indicate the same or equivalent parts, 1 is the heating chamber, 3 is the mounting table, 6 is the weight detection part,
7 is a weight change rate calculation section, 8 is a signal output section, 9 is a heating control section, 10 is a high frequency heating means, and 11 is a heater heating means.

Claims (1)

[Claims] 1. In a heating cooking device equipped with a heating chamber, a mounting table provided in the heating chamber, and a heating means for heating an object placed on the mounting table, the above-mentioned mounting table is A weight detection section is provided below and detects the weight of the heated object placed on the mounting table during cooking. A weight change rate calculation unit that calculates the weight change rate; a signal output unit that detects when the weight change rate calculated by the weight change rate calculation unit reaches a predetermined value and outputs a signal; 1. A heating cooking device comprising: a heating control section that receives the heating control section and controls the operation of the heating means.