JPS6124924A - Electronically controlled cooker - Google Patents

Abstract

PURPOSE:To reduce the occurrence of uneven thawing etc. by determining the appropriate timing based on the applicable number of times of processing, and signalling thereof. CONSTITUTION:Buzzer signalling is performed while thawing and cooking as many times (n) as optimum for the weight information at every timing responsive to afore-said times (n). When, for example, the buzzer signalling is again heard, the door is opened and whatever necessary action is taken such as turning over the food for the second time. When the door 2 is closed and the start key is operated, the thawing and cooking process is resumed in accordance with the program. When the reading of the interruption interval counter reaches to the reading of the interruption interval register PT thereafter, the thawing and cooking process is terminated. However, when a cook happens to be away from cooker area while thawing and cooking process is going on, the cooking process is continued.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to an electronically controlled cooking device, and can be used, for example, in a microwave oven.

(Example) Conventional Technology In recent years, many microwave ovens equipped with a control unit consisting of a microprocessor or the like have been commercialized, and such microwave ovens are capable of performing complex cooking. For example, thawing cooking as shown in Japanese Patent Application Laid-Open No. 57-80693 can be carried out. During such defrosting cooking, the microwave output can be changed during the defrosting process to prevent uneven defrosting as much as possible.

(C) Problems to be Solved by the Invention The present invention solves the problem that uneven defrosting occurs by a method other than such output control or by a method that can be combined with such output control. The aim is to significantly suppress the
This method allows the cook to perform desired processing such as changing the position of the food, turning the food over, etc. during cooking, such as defrosting. Therefore, in such a case, measures should be taken to notify the cook of the time when the above-mentioned processing is to be performed. Furthermore, the number of desired areas to be applied should be determined by the weight of the food product.

Furthermore, cooking is not automatically interrupted in response to such notification. That is, if the cooking is interrupted and the cook is not near the cooking device at the time of the interruption, the food will be left for a long time in a state where the desired processing cannot be performed and the cooking is interrupted.

Under such conditions, even if the cooking is restarted, the resulting food will be very undesirable. As mentioned above, if the cook is not near the cooker at the time of notification, the desired process may not be possible, but it is better to continue cooking to improve the finished state of the food. will get better.

2) Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a heating energy generating means for generating heating energy for heating food, and a method for cooking by controlling the driving of the generating means. In the electronically controlled cooking appliance, a number processing unit is installed in the control unit to process information regarding the number of times to perform the desired processing on the food during the cooking, and the desired processing is performed on the food during cooking. A notification means for notifying the timing of the test and a weight setting section for setting weight information of the food are provided, and the control section sets the number of times to the number of times processing section based on the weight information from the weight setting section. and determines an appropriate point during the cooking based on the number of times, and when the cooking reaches such a point, drives the notification stage, and the control section controls the notification means. An electronically controlled cooking appliance characterized in that the execution of the cooking is not stopped when the cooking operation is started.

(e) Effect: According to such a configuration, it is possible to automatically notify the cook when to perform desired processing such as changing the position of the food or turning the food over in order to eliminate uneven thawing. can. Furthermore, the number of times the desired treatment is performed can be automatically and optimally determined based on the weight of the food. In addition, if the cook is not near the cooking appliance at the time of the notification, cooking continues as is.

EXAMPLE Hereinafter, a microwave oven according to an example of the present invention will be described with reference to the drawings.

Figure 2 shows the appearance of the microwave oven.
) has a heating chamber (3) whose front opening can be opened and closed by a door (2) to store food, and inside the main body (1).
) is provided with a panel section (4) on the front right side.

FIG. 3 shows details of such a panel section (4), and the panel section has a fluorescent display (5) for displaying cooking time, etc.
) and a keyboard (6) for setting weight, cooking time, output, etc.

FIG. 4 shows the circuit of the microwave oven. The microwave oven is equipped with a microprocessor (7) as its control unit, and the processor receives information from the keyboard (6) and controls the opening and closing of the door (2). Based on the signal from the door switch (2') which is turned off and on when the door switch (2') turns off and on, the display on the display (5) is controlled, and the output of the heating signal HEAT and buzzer signal BZ is controlled.Heating signal H
When EAT is output, the switching circuit (8) consisting of bidirectional thyrisk is turned on, and then the commercial power supply (9) is turned on.
Power is completely supplied to the high voltage circuit (10), and the magnetron (11) as a heating energy generating means is driven, and microwaves for heating the food are supplied to the heating chamber (3). When signal B2 is output,
The buzzer drive circuit (12) operates and the buzzer (13) as a notification means sounds.

FIG. 5 shows the flow of the program of the processor (7), and the operation of the microwave oven will be explained below in accordance with this flow. Prior to that, an outline of the operation will first be described in accordance with FIG.

The figure relates to thawing cooking. Once the cook has set the weight information of the food, the thawing time t is determined by referring to a predetermined weight chart as seen in Japanese Patent Application No. 15111962/1983. The thawing cooking is performed using the first stage at time t1 (= tXo, 3) and the time (
It can be divided into the second stage of t-tl). and,
The first stage is 600 with maximum microwave output of 100%.
W, and the second stage is 300W, which is 50%. Furthermore, the optimal number of times n based on the above weight information
The buzzer notification is performed during thawing cooking at a time corresponding to the number of times n.

That is, every Pt[-t/(n+1) time, Pl, Pl,
...The buzzer is notified n times at Pn. In this case, the optimal number of times n is 1 when the weight information is 1 to 2 bonds.
．． When it is 3 to 5 bonds, it is 2. When it is 6 bonds or more, it is 3. Then, the cook can easily check the timing of performing desired processing, such as changing the position of the food or turning the food over, by such notification, and can carry out such processing. In this way, defrosting cooking can be carried out while minimizing the occurrence of uneven defrosting. On the other hand, if the cook is not near the cooking appliance at the time of the notification and the desired process is not performed, thawing and cooking continues as is.

Now, the operation of the microwave oven will be explained according to No. 5150.

When the microwave oven is powered on, the program normally cycles through steps S2 and S3 via step S1.

In the S1 step, the writable area in the processor (7) is cleared, and in the S2 step, the keyboard (6>
In step S3, it is determined whether or not a key operation has been performed based on the key information in step S2.

For example, when defrosting and cooking 3-bond meat,
The keys and operations on the keyboard (6) are as follows.

First, when you operate the decompression key, the program will proceed to step S2 above.
The cycle exits the S3 step and reaches the S4 step. In this step, it is determined whether the key information in step S2 is related to decompression. The present case concerns decompression, and the program then cycles through steps 85-S8. If decompression is not involved, the program proceeds to the appropriate step.

Then, in step S5, the weight information of the food is displayed on the display (5) by referring to the contents of the weight register QTT in the processor (7). Here, the content of the weight register QTT is the reference amount of 1 bond, so the display (5) displays '1.0°. Step S6 is similar to step S2, and in steps S7 and S8, it is determined whether the key information in step S6 is a numeric key or start key information, respectively.

Next, when you operate the number key 3 corresponding to the weight 3 bond, the program will cycle through steps 85 to S8 above to S7.
Exit the step and proceed to step S7-1. In this step, the weight register QTT is set to 3, and then the program cycles through steps 85 to S8 again, during which time the display (5) shows '3. OJ is displayed.

When the start key is operated, the program advances to step S9. In this step, the RO in the processor (7)
Patent application No. 53-158962 stored in the M area in advance
The defrosting time is determined with reference to a weight chart such as that shown in No. 1, and is set in a defrosting time counter DT in the processor (7). That is, in this embodiment, the weight register Q is set at the standard thawing time of 5 minutes corresponding to the standard amount of 1 bond
The weight of the contents of TT, in this case a coefficient of 2 corresponding to 3 bonds
．． The result of multiplying by 5, 12 minutes and 30 seconds, is set in the defrosting time counter DT.

In the next SIO step/b, the time obtained by multiplying the value of the decompression time counter DT by 0.3 <in this case 0.3. X12
minutes 30 seconds = 3 minutes 45 seconds> is set in the first stage counter DTI in the processor (7).

The program continues to the Sll step. In this step, it is checked whether the contents of the weight register QTT are 2 bonds or less. Since the answer here is no, the program then proceeds to step 811-1, where it is further checked whether the contents of the weight register QTT are less than or equal to 5 bonds. Here, since the following is true, the program proceeds to step S11-3. In this step, 2 is set in the processing number register PCNT, which is a processing number processing section. If the number of bonds is less than 2 in step 811, the program advances to step S11-2 and sets 1. to the processing count register PCNT. is set, and the above S
If no in step 11-2, the program goes to step S11-
The process reaches step 4, and 3 is set in the processing count register PCNT.

Continuing (in step 811-5, the defrosting time counter DT is
The time calculated by dividing the contents of the processing count register PCNT by 1 (in this case, 2+1 is set in the interval register PT).The program continues with steps SL2 to 815, S23.324, and S24-1. circulate.

In step SL2, the remaining defrosting time is displayed on the display (5) based on the contents of the defrosting time counter DT. S1
In step 3, the output of the heating signal HEAT is completely controlled and thawing cooking is started at the desired microwave output. In this case,
The microwave output is automatically controlled to 600W at 100%. That is, the heating signal HEAT is continuously output. In step 314, the second counter SEC in the processor (7) starts counting seconds, and in step S15, it is determined whether or not the second counter SEC has counted one second. In step S23, the door switch (2
The opening/closing of door 2) is checked by the signal from
The 24th step is similar to the S2 step, and the S24-
In step 1, it is determined whether the stop key has been operated based on the key information in step S24.

Then, the 1 second count is done, the program is 81
The cycle of steps 2 to S15.823 and S24.524-1 is exited at step S15 and proceeds to step 316.

In this step, the counting operation of the second counter SEC is stopped and its contents are cleared. In the next step 817, the content of the defrosting time counter DT is subtracted by 1 second. In the following step 818, it is determined whether the contents of the counter DT have become 0 or not. Now it is not O, and the program then reaches S19 Ste Knob. In this step, the content of the first stage counter DTI is subtracted by 1 second, and the next 820
In this step, it is determined whether the content of the counter DTI is greater than O or not. The content of such counter DT1 is now greater than 0, and the program reaches step S21. In this step, the interrupt interval counter P in the processor (7)
The contents of Ta count up by one, and in the following step S22, it is determined whether the contents of the counter PTa have reached the contents of the interruption interval register PT. I've reached it now.

Since there is no program, the program returns to step 812, and then 8
Steps 12 to 815.323 and S24.524-1 are cycled, and the state in which steps 916 to S22 are repeated every 1 second (hereinafter referred to as the A state).

Therefore, as described above, the first stage counter DT1 and interruption interval register FT initially contain 3 minutes 45 seconds and 4 minutes 10 seconds, respectively.
If seconds are set, the interruption interval counter P
The content of the first stage counter DTI becomes O before the content of Ta reaches the content of the interruption interval register FT. When the content of the counter DTI becomes 0, the program exits the A state from step 820 and returns to step S20-1.
Reaching the steps. In this step, when the step S13 is reached, the microwave output is set to 50% so that it becomes 300W. That is, when reaching the 813 Ste Knob, the heating signal HEAT changes at 10 seconds with a cycle of 20 seconds.
Controlled to output for seconds. The program continues through steps S21.322 and returns to the S12 step knob, then steps 812-S15.82g, 824, S24-
SL6 to S20 every 1 second after circulating one stent,
The state through steps S20-1, S21, and S22 is repeated (hereinafter referred to as B state). The output in this case is <300W as described above.

Thereafter, the contents of the interruption interval counter PTa reach the contents of the interruption interval register FT (at the time PL). Therefore, when it reaches such a point, the program returns to state 82 of the above B state.
2 steps to 822-1 step knob. In this step, the contents of the interruption interval counter PTa are cleared and the buzzer signal BZ is output for a certain period of time to issue a buzzer notification. The program is then 823.324.524
-1 stage and enters the above B state.

Now, the cook confirms from the buzzer that the food must be turned over to eliminate uneven thawing, and then opens the door (2) or operates the stop key and then closes the door (2). The first step is to open the food and turn the food over for the first time.

In this case, when the door (2) is opened, the program exits the B state at step 823 or step S24-1 and reaches step S24-2. In this step, S
The output control of the heating signal HEAT started in step 13 is stopped, and the thawing cooking is interrupted. The program then cycles through steps 925-S27. 325.
Step 326 is similar to step 312 and step S2, respectively, and in step S27, it is determined whether the start key has been operated based on the key information in step 826.

After that, the cook performs the above process, and then the door (2)
When you close the button and operate the start key, the program starts at 825 above.
The cycle from step 827 to step 827 is exited from step 827 and reaches step 828. At this step, the contents of the step interruption interval counter PTa are cleared.

The program then enters the above B state and defrosting and cooking is resumed, and when the content of the interrupt interval counter PTa reaches the content number of the interrupt interval register FT again (at time P2), the program starts from step 822 in the B state to step 322-1.
, S23.324, and S24-1 step/b to enter the above B state.

Then, the buzzer notification is confirmed and cleared by the cook again, and the cook opens the door (2) and turns over the food for the second time. In this case, the program similarly passes through 324-2 (defrosting/cooking interruption),
Cycles through steps S25 to S27. Then, when the food is subjected to the above-mentioned treatment and the door (2) is closed and the start key is operated, the program goes through the program +1828 steps and the above B.
Enter the state and defrost the cooking power (starts three times).

After that, the content of the interrupt interval counter PTa (the number Ct when the content of the interrupt interval register PT is reached), the thawing time counter DT becomes 0 in such thawing cooking, and the program is the same as the above step S24-2. When the program reaches step 818-1, the thawing cooking is completed.Then, the program passes through step S1, cycles through steps S2 and S3, and enters a state in which key information for the next cooking can be input.

Now, during the above thawing cooking, the program is 322-1.32.
3.324, when entering the above B state through step S'24-1 (for example, 2 when the first buzzer notification is made)
1), if the cook happens to be not near the cooker, the program will remain in state B.
Cooking continues. Then, starting from the first notification, the contents of the interruption interval counter PTa reach the contents of the interruption interval register PT again (at time P2). The subsequent operations are as described above.

Although the above embodiment is for eliminating uneven thawing, it goes without saying that it can also be applied to eliminating uneven cooking in general.

Furthermore, in the above-mentioned embodiment, when the buzzer notification is given, the message 'Turn' may be displayed for a certain period of time on the display (5). In this case, the cook can further confirm that the desired treatment should be applied to the food.

Furthermore, in the above embodiment, there is only one chart regarding weight stored in advance in the ROM area, and such chart is referred to in all defrosting cooking to determine the defrosting time.

In contrast, a specific optimum chart is provided for each type of food to be thawed, for example, meat and fish, and a keyboard (6)
In this case, for example, a meat thawing key and a fish thawing key are provided in place of the above thawing key, so that when thawing meat, the meat thawing key must be operated, and when it comes to referring to the chart, it is most suitable for thawing meat. A specific chart can be referenced. The same goes for defrosting fish.

Then, thawing and cooking can be performed more preferably.

(G) Effects of the Invention According to the present invention, the control unit that controls the driving of the heating energy generating means to execute cooking causes the number processing unit to process the number of times based on the weight information of the food, and Since the appropriate time point is determined based on the cooking time and the notification means is activated when the cooking time reaches the specified time point, the cooker can be automatically notified of the time point at which the desired process is to be performed, and the number of times the process is to be performed can be automatically notified. The temperature can be adjusted according to the weight of the food, and if desired processing is performed based on the above notification, occurrence of uneven thawing, etc. can be significantly suppressed.

Furthermore, if the cook is not near the cooking device at the time of the above notification, cooking will continue as is, and therefore the desired process will not be able to be performed and uneven thawing, etc. cannot be suppressed as described above, but more than that. It is possible to prevent food from ending up with an extremely undesirable finish.

[Brief explanation of drawings]

The drawings show a microwave oven according to an embodiment of the present invention, in which Fig. 1 is a timing chart for thawing cooking, Fig. 2 is an external perspective view, Fig. 3 is a front view of the panel section, and Fig. 4 is a block circuit diagram. , FIG. 5 is a flowchart of the microprocessor program. (7)...Microprocessor, (11)...Magnetron.

Claims (1)

[Claims] (1) In an electronically controlled cooker comprising a heating energy generating means that generates heating energy for heating food, and a control section that controls the driving of the generating means to execute cooking, A number processing section for processing information regarding the number of times to perform the desired processing on the food is provided in the control section, and a notification means for notifying the time point at which the desired processing is performed, and a weight for setting weight information of the food. A setting section is provided, and the control section causes the number processing section to process the number of times based on the weight information from the weight setting section, and determines an appropriate point during the cooking based on the number of times. When the cooking reaches such a point, the notification means is driven, and the control section does not stop the cooking when the notification means is activated. Electronically controlled cooker.