JPH09189421A - Heating cooking machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heating cooking machine capable setting the heating condition according to the automatic cooking menu to be used by a user without any complication of the constitution or the operation. SOLUTION: A cooking machine consists of a control part 1 to control the heating and the operation with a microcomputer as a center, a storage part 2 composed of EEPR0M2-1, etc., to store the operation constants to calculate the heating time of the food, various sensors 3 to detect the weight and the heated condition of the food, and an operation part 4 to set the cooking and to instruct the start of the heating. The control part 1 is provided with the automatic cooking function to determine the heating time from the arithmetic formula according to each cooking menu based on the information from various sensors 3, and changes the operation factors required for the arithmetic formula by the instruction from the operation part 4, and the storage part 2 stores the operation factors.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating cooker having an automatic cooking function capable of starting cooking with only one key input without requiring setting of heating time.

[0002]

2. Description of the Related Art In recent years, heating cookers for general household use have an automatic cooking function that does not require setting of heating time. The automatic cooking function sorts foods based on information from various sensors, and automatically heats the sorted foods by a heating schedule according to a predetermined cooking menu, for example, Japanese Patent Laid-Open No. 7-55154. Seen in the gazette. In addition, for a menu that is estimated to be frequently used, one having a one-touch key that does not require setting of heating means and can start cooking with only one key input is disclosed in, for example, Japanese Patent Laid-Open No. 4-3029.
See No. 17 publication. Further, some commercial heating cookers have an automatic cooking function by the same means.

[0003]

However, when taking a heating cooker for business use as an example, cooking items used by the same user are limited to some extent, but when used by users of other industries, completely different heating is required. May require a scheme. For example, if the weight of food and the presence or absence of a container have a great influence, the same calculation is performed so that the time to heat appropriately is completely different between warming a bento in a plastic container and thawing sashimi placed on a glass plate. The formula cannot handle it.

Therefore, in order to properly heat various menus in the same body, it is often the case that the number of types of sensors and keys is increased, or the operation and control means are complicated.
Also, regarding commercial cookers, there is a significant cost disadvantage in developing and producing a dedicated cooker for each user, including small users.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and is for calculating a heating time of food and a control unit for controlling heating and operation centered on a microcomputer. EE that stores the operation constant of
In a heating cooker including a storage unit such as a PROM, various sensors for detecting the weight and heating state of food, and an operation unit for instructing cooking setting and heating start, the control unit has information from the various sensors. Equipped with an automatic cooking function that determines the heating time from the calculation formula according to each cooking menu based on
Further, the operation constant required for the arithmetic expression can be changed by an instruction from the operation unit, and the operation constant is stored in the storage unit.

[0006]

With the above configuration, when the automatic cooking is set from the operation unit, the control unit performs the automatic cooking by determining the heating time from the arithmetic expression according to the cooking menu set based on the information from various sensors. Control. The operation constant required for the operation formula can be changed according to the use condition by the instruction from the operation unit, and the changed operation constant is stored in the storage unit.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a system block diagram of a heating cooker to which an embodiment of the present invention is applied, and FIG. 2 is a flow chart showing a procedure for changing a calculation constant of the heating cooker.

In FIG. 1, the system of the heating cooker stores a control unit 1 which controls the entire system such as heating and operation centering on the microcomputer 1-1, and an arithmetic constant for calculating the heating time of food. EEPROM2-
1 and the like, a storage unit 2, various sensors 3 such as a weight sensor 3-1 for detecting the weight of food, and an operation unit 4 for instructing the setting of cooking and the start of heating.

The operation unit 4 has a numeric key 4-1 for inputting a heating time, an output switching key 4-2 for selecting an output level (heating), and a memory key 4-3 for instructing storage of a calculation constant. And the one-touch keys 4-4, 4-5 that can start heating with only one key input without requiring cooking settings
A start key 4-6 for instructing to start heating, and a cancel key for instructing to cancel settings or stop heating.
The one-touch keys 4-4 and 4-5 are respectively assigned with auto 1 and auto 2 as an automatic cooking function, and appropriate heating can be obtained only by inputting the keys.

Here, the heating time t of the auto 1 is a linear expression "t =" in which the weight W is a parameter and a and b are operation constants.
aW + b (seconds) ", the initial values of the arithmetic constants a and b are" a = 0.1, b = 30 ", and the RAM and EEPROM of the microcomputer 1-1.
2-1 is stored. Therefore, the heating time is based on 30 seconds, and as the weight of the food increases by 100 grams, the heating time increases by 10 seconds.

In the above heating pattern, assuming that the food weight is 100 grams and the container weight is very light, about 4
Although the heating time is 0 seconds, if the same food is heated in a container having a high ratio of the weight of the food to the weight of the food, for example, 500
Since the gram container is heated for about 1 minute and 30 seconds, which causes excessive heating, it is necessary to change the heating pattern.

Hereinafter, referring to FIG. 2, one-touch key 4-4
The operation procedure for changing the constant of Auto 1 executed in step 1 will be described. After turning on the power, set a special mode in which constants can be changed by a specific key input operation. The special mode is to prevent the constant value from being changed by mistake,
The setting can be performed not only by a specific key input operation, but also by using a changeover switch or the like. Next, select the automatic cooking function to change the constant. As an example, the one-touch key 4-4 is input to change the operation constant of the auto 1.

First, the auto 1 is selected by inputting the one-touch key 4-4, and then the value of the arithmetic constant a is set by the numeric key 4-.
After inputting by pressing a predetermined number with 1, press the memory key 4-
Enter 3 to confirm the value of a. Similarly, after inputting the value of b with the numeric key 4-1, the memory key 4-3 is used to confirm. For example, the calculation formula of Auto 1 is "0.2W + 1
To change to "0", "One-touch key 4-4" → "Numeric key 4-1" 0 → 2 → "Memory key 4-3" → "Numeric key 4-1" 1 → 0 → "Memory key 4-" Key input in the order of "3". The microcomputer 1-1 has a and b
After recognizing that each value is confirmed, each data is RA
The write constant change to M and EEPROM 2-1 is completed.

In addition, when changing the constants of other auto 2, the one-touch key 4-5 is continuously input and the same operation as the auto 1 is performed. After the constant change is completed, the cancel key 4-7 is pressed to return from the special mode to the normal mode in which normal operation and heating are possible.

By rewriting the data in this way, it is possible to develop specifications according to each user with the same product without increasing the number of operation keys and heating setting procedures, and it is possible to reduce costs including development costs.

In the above embodiment, the method of determining the heating time by the linear expression based on the information obtained from the weight sensor is shown. However, various sensors such as a temperature sensor, a humidity sensor and a gas sensor are used to obtain various information. The heating time may be calculated as a parameter, and as long as the gist is not changed, the calculation formula is not limited to a linear formula, but can be implemented in all calculation formulas using the above-mentioned various information as parameters.

[0018]

As described above, according to the present invention, a control unit for controlling heating and operation, a storage unit for storing a calculation constant for calculating the heating time of food, and the weight and heating state of food. In a heating cooker composed of various sensors for detecting the temperature and an operation unit for instructing the setting of cooking and the start of heating,
The control unit has an automatic cooking function that determines the heating time from the calculation formula according to each cooking menu based on the information from various sensors, and the calculation constant necessary for the calculation formula can be changed by the instruction from the operation unit. Since the calculation constants are stored in the storage unit, it is possible to provide a heating cooker capable of setting heating conditions according to the automatic cooking menu used by the user without complicating the configuration and operation and significantly increasing the cost.

[Brief description of the drawings]

FIG. 1 is a system block diagram of a heating cooker according to an embodiment of the present invention.

FIG. 2 is a flowchart showing a procedure for changing an arithmetic constant of the heating cooker.

[Brief description of reference numerals]

 1 control unit 2 storage unit 3 various sensors 4 operation unit

Claims (1)

[Claims] 1. A control unit for controlling heating and operation,
A heating cooker including a storage unit that stores calculation constants for calculating the heating time of food, various sensors that detect the weight and heating state of food, and an operation unit that instructs cooking setting and heating start In the above, the control unit (1) has an automatic cooking function of determining a heating time from an arithmetic expression according to each cooking menu based on information from various sensors (3), and also, the operation unit (4) A heating cooker characterized in that an arithmetic constant required for this arithmetic expression can be changed by an instruction, and the storage section (2) stores the arithmetic constant.