JPH0133738B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to a cooking device that automatically heats and cooks food placed in a heating chamber after starting cooking.

Technical background of the invention and its problems Recently, gas sensors that detect water vapor, alcohol components, odors, etc. emitted from food in a heating chamber during cooking, or temperature sensors (for example, infrared sensors) that detect the heating temperature of food have become available. It detects the finished state of food based on the output signals from these gas sensors and temperature sensors,
2. Description of the Related Art A heating cooking apparatus, such as a microwave oven, has been developed which automatically performs heating cooking by stopping the operation of a heating unit such as a magnetron when the food reaches a finished state after the start of cooking. By the way, since there are many types of dishes that are cooked using this type of heating cooking device, it is difficult to accurately detect the finished state of each dish using only a gas sensor or temperature sensor, There was a possibility that the finished state would differ depending on the type. Also,
Even in the case of the same dish, the finished state of the food differs depending on the amount of food or the initial temperature of the food, such as the difference between food at room temperature and frozen food, and it is necessary to always finish the food in a good state. It was requested that it be made possible.

Purpose of the Invention The object of the present invention is to provide a heating cooking device that can always finish food in a good condition regardless of the amount of food or initial temperature, and can perform stable automatic cooking. .

Summary of the Invention A temperature sensor that detects the heating temperature of food and a weight sensor that detects the weight are provided, and when the heating temperature of the food reaches a specific temperature during cooking, the control unit controls the weight sensor. The heating control is switched to cooking the food for a heating time set according to the detected weight of the food.

Embodiment of the Invention An embodiment of the invention will be described below with reference to FIGS. 1 to 4. Figure 1 shows 1 of the heating cooking device.
This shows the general configuration of a microwave oven, which is a type of microwave oven.
2 is a case, and 2 is a heating chamber formed inside the case 1. A saucer 3 is disposed inside the heating chamber 2, and a waveguide 4 is attached to the ceiling plate 2a of the heating chamber 2. A magnetron (high frequency oscillator) 5 is attached to the base end of the waveguide 4. The high frequency waves output from the magnetron 5 are guided through a waveguide 4 and introduced into the heating chamber 2 from the tip of the waveguide 4. A temperature sensor 6 detects the heating temperature of the food 7 placed on the saucer 3 in the heating chamber 2, and for example, an infrared sensor is used. Further, a weight sensor 8 is attached to the tray 3, and the weight of the food 7 placed on the tray 3 is detected by the weight sensor 8 and displayed on the display section of the operation panel, etc. It's becoming like that. The weight sensor 8 and temperature sensor 6 are connected to a control section 9 that controls the operation of the magnetron 5. This control section 9 is composed of, for example, a microcomputer. Furthermore, the relationship between the weight of each type of food 7 and the preparation time is input into the control unit 9 in advance as data, along with a specific temperature Tho at which the influence of the initial temperature of the food disappears.
Note that the finishing time for the food 7 placed in the heating chamber 2 differs depending on the initial temperature, but in the case of the same type of food, as shown in Figure 3, the finishing time will vary depending on the initial temperature.
After reaching Th _p, the initial temperature T _a and the initial temperature
Cooking is completed in the same cooking time T regardless of whether the temperature is Th _b (Th _b >Th _a ) or the initial temperature Th _c (Th _c <Th _a ). Also, the weight and heating time T of each type of food 7
The relationship can be expressed as a proportional relationship having a certain coefficient for each weight of food 7, as shown in FIG.
Then, in the control unit 9, after the start of heating cooking, the heating temperature of the food 7 is first detected by the temperature sensor 6,
When it is detected that the heating temperature has reached a specific temperature _Thp , the heating of the food 7 is controlled based on the cooking time T set according to the weight detected from the weight sensor 8. .

Therefore, in the case of the above structure, the operation of the magnetron 5 is controlled by the control section 9, and the food 7
Appropriate cooking can be performed for each type of food. In this case, for example, even if the initial temperature of the food 7 or the amount of the food 7 is other than the standard temperature and standard amount, the temperature sensor 6 determines the specific temperature Th _p
After the time when is detected, the food 7 is heated and cooked for a heating time set according to the weight of each type of food 7, so the food 7 can always be finished in a good condition.

Note that this invention is not limited to the above embodiments. For example, as shown in FIG. 5, a tray 10 may be provided outside the heating chamber, and a weight sensor 11 attached to the tray 10 may be connected to the control section 9. Furthermore, although the above embodiment shows the case where it is applied to a microwave oven, it may also be applied to an electric oven, a gas oven, etc.
Of course, various modifications can be made without departing from the gist of the invention.

Effects of the Invention According to the present invention, the temperature sensor detects the heating temperature of the food, the weight sensor detects the weight of the food, and the control unit controls the heating temperature of the food when it reaches a specific temperature. Since then, the heating of the food has been controlled for the heating time set according to the weight of each type of food, so the food can always be finished in a good condition regardless of the amount of food or the initial temperature. Automatic cooking is possible.

[Brief explanation of drawings]

1 to 4 show an embodiment of the present invention, in which FIG. 1 is a schematic configuration diagram showing the overall configuration, FIG. 2 is an explanatory diagram for explaining the operation, and FIG.
FIG. 4 is a relationship diagram showing the relationship between food cooking time and heating temperature, FIG. 4 is a relationship diagram showing the relationship between food weight and cooking time, and FIG. 5 is a front view showing another embodiment. 2...Heating chamber, 6...Temperature sensor, 7...Food, 8,
11... Weight sensor, 9... Control unit.

Claims (1)

[Claims] 1. A temperature sensor that detects the heating temperature of food placed in a heating chamber, a weight sensor that detects the weight of the food, and a sensor connected to the weight sensor and the temperature sensor and detected by the temperature sensor. A heating cooking device comprising: a control section that controls the heating of food based on a heating time set according to the detected weight from the weight sensor when the temperature reaches a specific temperature.