JPS6160326B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electronically controlled cooking device that automatically executes cooking according to a menu simply by operating a heating menu designation key.

In such automatic cooking, the operator only specifies the menu and does not know how much time it will take to cook. Even if I knew, I didn't keep track of how much time had passed since I started cooking, so I had no idea how much cooking time was left. However, in cooking where the length of cooking time is known through experience or the like, it is very convenient to know the remaining cooking time if the elapsed time is known.

Therefore, an object of the present invention is to provide a cooking appliance that displays the elapsed time from the start of cooking when the operator desires.

The present invention will be explained below using an example of an electronically controlled microwave oven.

FIG. 1 shows the microwave oven of this embodiment, and its structure consists of a heating chamber opening/closing door 2 having a handle 1, a display means 3 such as a fluorescent numeric tube, and a keyboard 4 arranged on the operation panel on the right side thereof. .

FIG. 2 shows details of the keyboard 4. The keyboard is provided with a large number (for example, 40) of heating menu designation keys 5, 5, ... and one start key 6, and each heating menu designation key 5 has a key for distinguishing each key. Serial numbers such as 1, 2, 3, . . . and corresponding menu names are indicated.

FIG. 3 shows a control circuit for the microwave oven, which is equipped with a control means 7 mainly consisting of a microcomputer. That is, the control means 7 stores heating programs (microwave output value, finished cooking temperature, etc.) corresponding to each of the heating menu designation keys 5, 5, . . . in a storage section 8 comprising an internal ROM, When any one heating menu designation key 5 is operated and the start key 6 is operated subsequently on the keyboard 4, the heating program corresponding to the menu is read from the storage unit 8, and the drive of the magnetron oscillation circuit 9 is controlled according to this. do. During such control, the control means 7 stops driving the magnetron oscillation circuit 9 when the temperature of the food output from the infrared temperature sensor 10 reaches the cooking finish temperature of the heating program, thereby completing the cooking. Note that the magnetron oscillation circuit 9 is controlled via an A/D converter 11. The control means 7 also controls the display on the display means 3, and after the heating menu designation key 5 is operated, the code or serial number attached to the designated key until the end of cooking, for example, if the menu is "miso soup", The number "1" continues to be displayed as shown in FIG. 4A.

A feature of the present invention is that during cooking, a number related to the cooking is displayed on the display means 3, and based on the display number, the designated key 5 corresponding to the current cooking is confirmed and the designated key is pressed. 5, the display means 3 displays the elapsed time from the start of cooking to the operation of the designated key 5 for a predetermined period of time.
It is to be displayed at. In FIG. 4B, instead of the serial numbers for distinguishing the keys, a numerical value representing the elapsed time (1 minute and 15 seconds in this example) is displayed on the display means 3.
It shows that it is displayed in .

FIG. 5 shows a control program for the control means 7.
Note that this program is also stored in the storage section 8 of the control means 7.
It is stored in . In this embodiment, the predetermined time is 5 seconds.

First, in the P1 step, when the desired heating menu designation key 5 is operated and then the start key 6 is operated, execution of the above control program is started, and the serial number corresponding to the designation key 5 is stored in the display register of the display means 3. . Note that the display register is a register provided in the display means 3 and stores numerical values to be displayed, and the contents of the display register are displayed on the display means 3 in step P2.

Operation control is then performed in step P3. In other words, operation control involves reading out a heating program from the storage unit 8, turning on and off the magnetron oscillation circuit 9 according to the microwave output, reading the temperature of the food output from the infrared sensor 10, and
This is compared with the cooking finish temperature of the program to determine whether the former has reached the latter.

If it is determined that cooking is complete because the temperature of the food to be cooked reaches the finished cooking temperature at such a point,
The magnetron oscillation circuit 9 is turned off at step P4, and the microwave oven enters a standby state at step P5. In this standby state, a flag F and a count DP, which will be described later, are reset to zero.

If it is determined in the P3 step that cooking should be continued, the elapsed time from the P1 step, that is, the start of cooking, is counted in the P6 step, and the process proceeds to the P7 step. The elapsed time is continuously counted during cooking.

In step P7, it is determined whether flag F is "1" or not. The flag F indicates whether the serial number or the elapsed time is stored in the display register, and F=0.
In this case, the serial number is stored in the display register, and F
If =1, the elapsed time is stored, and the contents of the display register are displayed by the display means 3 in step P2.

If the flag F is determined to be 0 at step P7, the process advances to step P8. In step P8, it is determined whether or not any key on the keyboard 4 has been operated during cooking. If no key has been operated, the process returns to step P2 and executes the steps from P2 onwards. Also, the designated key 5 corresponding to the current cooking is confirmed based on the current serial number display, and when the key 5 is operated, the process advances to step P9.
Incidentally, the case where it is determined that the flag F=1 in step P7 will be described later.

In step P9, the key operated in step P8 is the key corresponding to the cooking.
It is determined whether it is the same as the designated key 5 operated in step P1. In such a case, if it is determined that the keys are not the same, the process returns to step P2 and executes the steps following step P2 described above. Further, as described above, when the designated key 5 is operated after confirmation based on the serial number display, it is determined that the designated key 5 is the same key, and steps P10 to P12, which will be explained below, are executed and the process returns to step P2.

Steps P10 to P12 are a preparation process for operating the same key as described above, that is, preparation for displaying the elapsed time on the display means 3.

At step P10, the elapsed time counted at step P6 is stored in the display register. The elapsed time is displayed on the display means 3 at step P2.

Next, in step P11, the value of flag F is set to "1" to indicate that the elapsed time has been stored in the display register, and in step P12, the counter DP is set to "5", and the process returns to step P2.

The counter DP is the means 3 for displaying the elapsed time.
is a counter that calculates the display time length in
The numerical value "5" above indicates that the display time length is 5 seconds. The calculation of the above counter DP will be explained later.
This is done in step P13.

Next, returning to step P7 again, the processing when the flag F is determined to be 1 in this step will be explained.

If flag F is determined to be 1 in step P7, the process advances to step P13. In step P13, the value of count DP is subtracted by "1". This subtraction essentially calculates the display time of the elapsed time on the display means 3, and it is determined in step P14 whether or not the count DP has reached "0". In such a judgment, when the count DP=0, it indicates that the display time of the elapsed time on the display means 3 has expired, and the processing of steps P15 and P16, which will be described later, is performed. If the count DP≠0, it is determined that the elapsed time is currently being displayed, and the process proceeds to step P8.

In the P15 step, it is determined that the elapsed time display time has expired in the P14 step, so the display means 3
In order to restore the display to the above serial number, the serial number is set in the display register, and then, in step P16, the value of flag F is set to "0".
Then proceed to step P8.

Therefore, in the microwave oven of this embodiment, if the specified key corresponding to the cooking menu is operated during cooking, the 5
The seconds display means 3 displays the elapsed time from the start of cooking, and after 5 seconds have elapsed, the display means again displays the serial number corresponding to the cooking menu.

As explained above, the electronically controlled cooker of the present invention displays the elapsed time from the start of cooking simply by operating the designated key corresponding to the cooking concerned, so that it can be used for cooking for which the cooking time is known from experience. By displaying the elapsed time when cooking, the remaining cooking time can be easily calculated backwards, which is very convenient. If the serial number code corresponding to the cooking is displayed during periods other than the elapsed time display, the operator does not need to remember the cooking menu, which is very convenient for the operator. Furthermore, by normally displaying a code during cooking and displaying the elapsed time instead when a designated key corresponding to the cooking is operated, only one display means is required and cost can be suppressed. Furthermore, since the designated key corresponding to the cooking is also operated to display the elapsed time during cooking, the increase in costs can also be suppressed in this respect.

[Brief explanation of the drawing]

Fig. 1 is a front view showing a microwave oven according to an embodiment of the present invention, Fig. 2 is an enlarged front view of main parts of Fig. 1, Fig. 3 is a block circuit diagram showing the circuit of this embodiment, and Fig. 4 is FIG. 5, a front view showing the display state of this embodiment, is a flowchart showing the operation of this embodiment. 3...Display means, 5...Heating menu designation key, 7...Control means, 8...Storage unit.

Claims (1)

[Claims] 1. A control means having a plurality of heating menu designation keys and a storage section that stores heating programs corresponding to each of the menus in advance, and controlling execution of cooking according to the heating program in the storage section designated by the designation key. is controlled by the control means, and includes a display means that usually displays a code related to the cooking, and only when the designated key corresponding to the cooking is operated during cooking, the control means controls the cooking. The electronically controlled cooking appliance is characterized in that the elapsed time from the start of cooking to the operation of the designated key is displayed on the display means for a predetermined period of time while the cooking continues.