JPH04281113A - Microwave cooking oven - Google Patents

Abstract

PURPOSE:To give food a suitable finish by adding high frequency heating in the cooking of a food to be cooked in which heating by a heater plays main role. CONSTITUTION:A bread that is an object to be cooked receives heating by a heater for the detection time, T0, then cooking of both faces by the heat of a heater for the time of T1, internal heating by high frequency heating for the time of T2, and additional heating by a heater for the time of T3 under the control of a microcomputer. The bread is, therefore, cooked as a toast by the high frequency heating with its inside containing a suitable moisture to give soft and full touch in bread.

Description

[Detailed description of the invention]

[Object of the invention]

0002

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a microwave oven that performs heater heating in addition to high frequency heating.

0003

[Prior Art] A microwave oven equipped with a toaster function, which is a heater heating function, has an upper heater and a lower heater installed in the upper and lower parts of the heating chamber, respectively, and uses these heaters to heat sliced bread, which is the object to be cooked. It is supposed to be done.

[0004] In this case, conventionally, the cooking time is changed depending on the number of pieces of toast in order to obtain a good finish (baked).

[0005]

[Problem to be solved by the invention] In the conventional configuration, the above,
Since the lower heater simply heats the top and bottom surfaces of the sliced bread, the bread is only scorched from the top and bottom, and the inside of the bread is baked to make it fluffy, resulting in proper cooking, that is, delicious toast. That is difficult.

[0006] Furthermore, bread is classified into 4 slices, 6 slices, 8 slices, etc. depending on the thickness of the slice.
Furthermore, bread is classified into room-temperature bread, frozen bread, etc. depending on its storage condition, but if we simply changed the cooking time depending on the number of slices as mentioned above, for example, 8 slices of small thickness In the case of white bread, too much moisture is removed from the toast and it becomes hard, or in the case of frozen bread, the inside becomes cold, making it impossible to obtain a more suitable toast.

The present invention has been made in view of the above-mentioned circumstances, and its object is to provide a microwave oven that can cook food to an appropriate finish, which is mainly heated by a heater.

[Configuration of the invention]

[0009]

[Means for Solving the Problems] The microwave oven according to claim 1 has a control means having a function of executing cooking by high-frequency heating of an object to be cooked in a heating chamber and a function of executing cooking of double-sided cooking by heater heating. The present invention is characterized in that the control means is configured to perform high-frequency heating during at least a portion of the latter half of cooking, which is mainly heated by a heater.

The microwave oven according to the second aspect is characterized in that the control means is configured to change the execution timing or execution time of high-frequency heating depending on the thickness of the food to be cooked.

The microwave oven according to the third aspect is characterized in that the control means is configured to change the execution timing or execution time of high-frequency heating depending on the number of items to be cooked.

[0012] The microwave oven according to the fourth aspect is characterized in that the control means is configured to change the execution timing or execution time of high-frequency heating depending on the temperature at the start of cooking of the food to be cooked.

The microwave oven according to a fifth aspect of the present invention is characterized in that the control means is configured to change the execution timing or execution time of high-frequency heating depending on the temperature at the start of cooking in the heating chamber.

[0014]

[Function] According to the microwave oven of claim 1, the food to be cooked is heated at high frequency during at least a part of the second half of the cooking process by heating the food by the heater, so that the inside of the food is well heated. , can be cooked to a suitable finish.

According to the microwave oven of the second aspect, since the execution timing or execution time of the high-frequency heating can be changed depending on the thickness of the object to be cooked, even if the thickness of the object to be cooked differs, each object can be cooked to an appropriate finish. can do.

According to the microwave oven of the third aspect, since the execution timing or execution time of high-frequency heating can be changed depending on the number of items to be cooked, even if the number of items to be cooked differs, each item can be cooked to an appropriate finish. can do.

[0017] According to the microwave oven of claim 4, the execution timing or execution time of the high-frequency heating can be changed depending on the temperature at the start of cooking of the food to be cooked, so whether the food to be cooked is room temperature, frozen food, etc. In this way, even if the temperature of the food to be cooked differs, each food can be cooked to an appropriate finish.

According to the microwave oven according to the fifth aspect, since the execution timing or execution time of the high-frequency heating is changed depending on the temperature at the start of cooking in the heating chamber, the food to be cooked is repeatedly cooked and the cooking starts. Even if the temperature inside the heating chamber changes at the time, the food to be cooked can be properly cooked.

[0019]

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

First, the electrical configuration of the microwave oven will be described according to FIG. The power plug 1 is plugged into an outlet (not shown) that is a 100-volt single-phase AC power source, and one terminal thereof is connected to a power line 5 via a current fuse 2, a door switch 3, and a power switch 4.
The other terminal is connected to the power supply line 6. Further, a common connection point between the door switch 3 and the power switch 4 is connected to a power line 6 via a short switch 7.

In this case, the power switch 4 is turned on and off by manual operation, and the door switch 3, although not shown, opens and closes the front opening in the heating chamber inside the microwave main body. The short switch 7 is turned off and on in response to opening and closing of the door, and the short switch 7 is turned on and off in the opposite way to the door switch 3.

A series circuit of an upper heater 8 and a relay switch 9 disposed at the upper part of the heating chamber is connected between the power supply lines 5 and 6, and a series circuit of a lower heater 8 and a relay switch 9 disposed at the lower part of the heating chamber is connected. A series circuit of a heater 10 and a relay switch 11 is connected. Further, a series circuit including a primary coil 12P of a high voltage transformer 12 and a relay switch 13 is connected between the power lines 5 and 6.

[0023] The high voltage transformer 12 has a secondary coil 12S1.
and 12S2. A series circuit of a high voltage diode 14 and a high voltage capacitor 15 is connected between both terminals of the secondary coil 12S1, the cathode of the high voltage diode 14 is connected to the anode of the magnetron 16, and the anode of the high voltage diode 14 is connected to the cathode of the magnetron 16. is connected to one terminal of the And the secondary coil 12S
Both terminals of the magnetron 16 are connected to both terminals of the cathode of the magnetron 16. Note that the anode of the magnetron 16 is grounded.

A DC output terminal of a DC power supply circuit 18 is connected to a power supply port of a microcomputer 17 serving as a control means. This DC power supply circuit 18 has its AC input terminals connected to the power supply lines 5 and 6, and steps down the AC power supply voltage applied between the power supply lines 5 and 6, rectifies it, smoothes it, makes it a constant voltage, and converts it into a DC power supply voltage. It is designed to be output.

The input port of the microcomputer 17 is connected to the output terminal of the switch operating section 19. Although not shown, this switch operation section 19 is provided with a start switch, a cancel switch, a mode selection switch, a menu selection switch, a finish adjustment switch, etc., and each of these switches sends an operation signal when pressed. It is designed to be outputted and given to the microcomputer 17.

A temperature sensor 20 and a gas sensor 21 are connected to the input port of the microcomputer 17 via an A/D conversion circuit 22. These temperature sensors 20
and gas sensor 21 are each installed, for example, on the inner wall surface of the heating chamber, temperature sensor 20 detects the temperature inside the heating chamber and outputs a temperature detection signal, and gas sensor 21 detects the amount of water vapor inside the heating chamber. It is designed to output a water vapor amount detection signal. Further, a weight sensor 23 is connected to an input port of the microcomputer 17 via an A/D conversion circuit 24. The weight sensor 23 is installed, for example, at the bottom of the heating chamber, and is designed to detect the weight of the food placed on a net-shaped turntable (not shown) in the heating chamber and output a weight detection signal. It has become.

An output port of the microcomputer 17 is connected to an input terminal of a display section 25, and other output ports are connected to an alarm 27 via a drive circuit 26.

The microcomputer 17 receives operation signals from the switch operation section 19 and various sensors 20,
In response to the detection signals from 21 and 23, it operates as described later, and controls the on/off of relay switches 9, 11, 13, the display on display section 25, and the notification on alarm 27.

Next, the operation of this embodiment will be explained with reference to the time chart shown in FIG. 1, the flowcharts shown in FIGS. 3 to 7, and the operation diagrams shown in FIGS. 8 to 12.

Now, when the bread to be cooked is placed on the turntable in the heating chamber and the door (not shown) is closed, the short switch 7 is turned off and the door switch 3 is turned on.

Then, when the power switch 4 is turned on,
The microcomputer 17 starts its operation. The microcomputer 17 first performs processing step S.
1, and here, well-known initialization processing is performed and the subtraction timer is reset. The microcomputer 17 then proceeds to output step S2, where the display section 25 displays all modes, that is, four modes, "range", "oven", "grill", and "toast", in text. let

The microcomputer 17 further proceeds to judgment step S3, in which it is judged whether or not the mode selection switch has been operated.If "NO" (no operation), judgment step S3 is repeated. After that, if the mode selection switch is operated and the mode on the screen of the display unit 25, for example, the "toast" mode, is selected, the microcomputer 17 performs the determination step S.
If the answer is ``YES'' in step 3, the process goes to output step S4, where only the selected mode of ``toast'' is displayed on the display section 25.

The microcomputer 17 then proceeds to output step S5, and displays the entire menu of the selected mode on the display section 25. For example, in the case of the "toast" mode, the "4 slices" menu is displayed. , ``Cut into 6 pieces'' and ``Cut into 8 pieces'' are displayed in text. Then, the microcomputer 17 performs judgment step S6.
Then, it is determined whether or not the menu selection switch has been operated.If "NO" (no operation), this determination step S6 is repeated.

Thereafter, when the menu selection switch is operated and one of the menus on the screen of the display section 25 is selected, for example, if the menu of "cut into 4 pieces" is selected, the microcomputer 17 performs the output step S7. Then, only the selected menu is displayed on the display 25, for example, only the "4-piece cut" menu is displayed. The microcomputer 17 then proceeds to processing step S8.

In this processing step S8, the microcomputer 17 sets the basic cooking time variable B (B1, B
2, B3), for example, "cut into 4 pieces"
In the case of the menu, B1 = 4 minutes 00 seconds, B2 = 20
seconds, B3=15 seconds, and store these in the RAM. Furthermore, the microcomputer 17 moves to judgment step S9, in which it judges whether or not the finish adjustment switch has been operated.

The finish adjustment switch, as shown in FIG.
) are divided into "dark", "normal" and "light";
"Finish" (A2) is classified into "Fluffy" and "Normal". Then, when the finish adjustment switch is operated and one of these "brown color" (A1) and "finish" (A2) is selected, the microcomputer 17 selects "YES" in judgment step S9. It is determined that the process proceeds to step S10, where variables A1 and A2 are set and stored in the RAM. For example, when "Dark" is selected, set A1 = +10 seconds, when "Fluffy" is selected, set A2 = 1, and set these to R
Store it in AM.

The microcomputer 17 then proceeds to judgment step S11, where it judges whether or not the start switch has been operated.
If there is no operation), the process goes to judgment step S12. In this judgment step S12, the microcomputer 17 judges whether the cancel switch has been operated or not, and selects "NO".
” (no operation), the process returns to judgment step S9. Thereafter, if none of the finish adjustment switch, start switch, or cancel switch is operated, the microcomputer 17 performs steps S9 and S.
11 and S12 are both determined to be "NO", and these steps are repeated.

In the above case, when the finish adjustment switch is operated again because the adjustment made by the previous operation of the finish adjustment switch was inappropriate, the microcomputer 17 returns "YES" again in the judgment step S9.
It is determined that the process proceeds to step S10, and a new variable A is
1, A2 will be stored in the RAM.

In the above case, if the finishing adjustment switch has never been operated, the microcomputer 17 will proceed to judgment step S11 without passing through processing step S10, but the initialization of processing step S1 Sometimes "Normal" is selected and A1 is stored in RAM.
=±0 seconds and A2=0 are stored, so there is no problem.

Now, when the start switch is operated,
The microcomputer 17 determines "
YES", the process proceeds to input step S13, where the temperature detected by the temperature sensor 20, that is, the temperature inside the heating chamber is read. Then, the microcomputer 17 goes to processing step S14, and here, as shown in FIG. 10, the microcomputer 17 sets variables H (H1, H2) for repetitive correction. In other words, when heating a loaf of bread in a heating chamber, the temperature inside the heating chamber differs between the first time the loaf of bread is heated and the subsequent heating of another loaf of bread, that is, when the loaf of bread is repeatedly heated. This is because they are different. In this case, when the bread is heated for the first time, the temperature inside the heating chamber is equal to the outside temperature, so it is below 49°C. Therefore, the microcomputer 17 sets H1 = ±0 seconds and H2 = ±0 seconds, and is stored in RAM.

Thereafter, the microcomputer 17 moves to input step S15, where it reads the weight detected by the weight sensor 23, that is, the weight of the bread to be cooked. Then, the microcomputer 17 performs processing step S16.
Therefore, here, as shown in FIG. 11, variables W (W1, W2) for sheet number correction are set. That is, since the weight of the bread to be cooked is proportional to the number of bread pieces, detecting the weight means detecting the number of bread pieces. In this case, one piece of bread cut into four pieces corresponds to two pieces of bread cut into eight pieces. Therefore, for example, when two slices of bread are cut into four pieces, the weight is 50 grams or more, so the microcomputer 17 sets W1=+30 seconds and W2=+20 seconds, and stores these in the RAM.

The microcomputer 17 then proceeds to processing step S17, where it sets the detection time T0 to, for example, "15 seconds" as an initial value in the subtraction timer, and proceeds to output step S18. The microcomputer 17 turns on the relay switches 9 and 11 in the output step S18. Therefore, the upper heater 8 and the lower heater 10
is energized and generates heat, which heats the bread on the net-shaped turntable from both the top and bottom.

The microcomputer 17 further proceeds to judgment step S19, where it judges whether the subtraction timer has expired (timed up) or not.
O”, processing step S to subtract the subtraction timer.
20, the process returns to judgment step S19, and this process is repeated thereafter. Thereafter, when the subtraction timer times out, the microcomputer 17 proceeds to output step S21 and turns off the relay switches 9 and 11, thereby cutting off the power to the upper heater 8 and lower heater 10 to stop heater heating. .

The microcomputer 17 next performs an input step S22, in which it reads the amount of steam detected by the gas sensor 21, that is, the amount of steam generated in the heating chamber. Then, the microcomputer 17 goes to processing step S23, and here, as shown in FIG. 12, the microcomputer 17 sets variables P (P1, P2) for material temperature correction. In other words, food stored at room temperature generates water vapor immediately after heating begins, whereas low-temperature bread that has been frozen generates almost no water vapor when heated for 15 seconds. By utilizing this fact, it is possible to determine whether the bread is stored at room temperature or frozen.

Thereby, the microcomputer 17 determines whether the amount of steam generated in the heating chamber is less than or greater than the predetermined value x, and sets variables P1 and P2. for example,
The microcomputer 17 determines that the amount of water vapor generated is a predetermined value x.
In the above case, when the bread is stored at room temperature, P1=±0 seconds and P2=±0 seconds are set and these are stored in the RAM.

Next, the microcomputer 17 moves to processing step S24, where it calculates and sets the heater heating time T1, high frequency (microwave) heating time T2, and additional heater heating time T3, which are cooking times, as follows. . That is, T1=B1+A1+H1+W1+P1-A2・
B3…………(1) T2=A2(B2+H2+
W2+P2) …………(2)
T3=A2・B3
......(3). Therefore, if you want to finish (baking) two four-slice pieces of bread stored at room temperature to a normal brown color and fluffy with the first heating, B1 = 4 minutes 00 seconds, B2 =
20 seconds, B3=15 seconds, A1=±0 seconds, A2=1, H1
=±0 seconds, H2=±0 seconds, W=±30 seconds, W2=+20
seconds, P1=±0 seconds, P2=±0 seconds, T1=4
Minutes 15 seconds, T2=20 seconds, T3=15 seconds. In this way, the microcomputer 17 stores the calculated times T1, T2, and T3 in the RAM.

The microcomputer 17 further proceeds to processing step S25, where it sets the heater heating time T1 as an initial value in the subtraction timer, and outputs step S2.
6, the upper heater 8 and lower heater 10 are energized, and the output step S27 causes the display section 25 to display the remaining time of the time T1. Therefore, the first display on the display unit 25 is "4 minutes and 15 seconds." After that, the microcomputer 17 moves to judgment step S28, in which it judges whether the subtraction timer has expired (timed up) or not, and if "NO", a processing step for causing the subtraction timer to perform subtraction. After passing through S29, the process returns to output step S27, and thereafter steps S28, S29, and S27 are repeated.

When the subtraction timer finishes subtracting the time T1 (for example, 4 minutes and 15 seconds), the microcomputer 17
When the determination step S28 is ``YES'', the output step S30 is reached, where the upper heater 8 and the lower heater 10 are
After the power is cut off, judgment step S31 is reached. The microcomputer 17 judges whether or not the time T2 is 0 in the judgment step S31, and here it is "NO" (T2=
20 seconds) and moves to processing step S32.

In processing step S32, the microcomputer 17 sets the high frequency heating time T2 (for example, 20 seconds) to the subtraction timer as an initial value, and proceeds to output step S33. The microcomputer 17 turns on the relay switch 13 in the output step S33,
Therefore, the power supply voltage is applied to the primary coil 12P of the high voltage transformer 12, and the magnetron 16 is driven. As a result, the high frequency waves from the magnetron 16 are irradiated onto the bread in the heating chamber, thereby performing high frequency heating. The microcomputer 17 further proceeds to an output step S34 and causes the display section 25 to display the remaining time of the time T2. Therefore, the first display on the display unit 25 is "20 seconds".

[0050] Thereafter, the microcomputer 17 moves to judgment step S35, where it judges whether the subtraction timer has expired or not, and if "NO", the microcomputer 17 moves to processing step S36 to cause the subtraction timer to perform subtraction. The process now returns to the output step S34, and the following steps S35 and S3
6 and S34 are repeated.

When the subtraction timer completes the subtraction of the time T2 (for example, 20 seconds), the microcomputer 17 judges "YES" in the judgment step S35 and outputs the output step S.
37, and here the relay switch 13 is turned off to stop the magnetron 16. The microcomputer 17 further proceeds to processing step S38, where it sets the additional heater heating time T3 (for example, 15 seconds) to the subtraction timer as an initial value, and proceeds to output step S39. In this output step S39, the microcomputer 17 energizes the upper heater 8 and the lower heater 10,
Thus, additional heater heating is performed.

The microcomputer 17 then proceeds to output step S40, in which the time T is displayed on the display section 25.
Display the remaining time of 3. Therefore, the first display on the display section 25 is "15 seconds". The microcomputer 17 moves to judgment step S41, in which it judges whether the subtraction counter has expired or not, and if "NO", returns to output step S40 through process step S42 in which the subtraction timer is made to perform subtraction. Then, steps S41, S42, and S40 are repeated.

When the subtraction timer completes the subtraction of the time T3 (for example, 15 seconds), the microcomputer 17 determines "YES" in the determination step S41, and proceeds to an output step S43, where the upper heater 8 and the lower heater 10 are After cutting off the power, the process moves to processing and output step S44.

In this processing and output step S44, the microcomputer 17 clears the memory contents of the RAM and energizes the alarm 27 for a short time via the drive circuit 26. An annunciator 27 generates an annunciation sound for a short period of time. After that, the microcomputer 17 ends its operation.

Furthermore, when the cancel switch is operated while repeating steps S9, S10, S11, S12 and S9, the microcomputer 17 determines "YES" in the determination step S12. The process jumps to step S44, and the operation ends without performing the cooking operation.

Furthermore, during the above-mentioned cooking operation, if "Normal" of "Finish" is selected among the variables A for finish correction and variable A2 is set to A2=0, the microcomputer 17 determines whether "YES" in step S31
It is determined that the process jumps to step S44, and the high-frequency heating at time T2 and the additional heater heating at time T3 are no longer performed, resulting in normal bread heating. This is because when A2=0, T2=0 and T3=0. However, in this case, the heater heating time T1
As is clear from equation (1), since variable B3 is included without being subtracted, the bread will not be underheated.

According to this embodiment, the following effects can be achieved.

That is, during cooking, which mainly involves heating the bread with the upper heater 8 and lower heater 10 under the control of the microcomputer 17, the magnetron 16 performs high-frequency heating during a part of the latter half of the cooking process. Since the top and bottom surfaces of the bread are burnt due to heating by the heater, only the inside is heated by high frequency without being affected by the high frequency heating on the top and bottom. It is possible to finish the toast in a fluffy state that contains moisture and is suitable and delicious.

[0059] Also, the condition of the bread to be cooked, ie, 4
Variable B depending on the thickness of slices, 6 slices, or 8 slices, and Variable A depending on the desired browning color and degree of finish.
Since the heater heating time T1, high frequency heating time T2, and additional heater heating time T3 were set from the variable H depending on the temperature in the heating chamber, the variable W depending on the weight or number of pieces, and the variable P depending on the temperature of the bread itself, in other words, Since the execution timing and execution time of the high-frequency heating are changed, more appropriate cooking, that is, the most desirable toast can be obtained depending on the various conditions of the bread. If each of these is described individually, it will be as follows.

That is, since the heater heating time and the execution timing and execution time of high-frequency heating are changed depending on the thickness of the bread, whether it is cut into 4 slices, 6 slices, or 8 slices, the timing and duration of the high-frequency heating can be adjusted appropriately depending on the thickness of the bread. You can do a lot of cooking.

Furthermore, since the heater heating time and the execution timing and execution time of high-frequency heating are changed according to the weight of the bread, it is possible to perform cooking appropriately depending on the number of bread.

Furthermore, since the heater heating time and the execution timing and execution time of high-frequency heating are changed depending on the amount of water vapor generated in the bread at the start of cooking, that is, the temperature of the bread, the breadth stored at room temperature and the bread stored frozen can be Cooking can be done properly in either case.

[0063] Since the heater heating time and the execution timing and execution time of high-frequency heating are changed depending on the temperature of the heating chamber at the start of cooking, when toasting is obtained by repeatedly heating bread, the heating time can be changed each time. Even if the temperature of the heating chamber differs, appropriate cooking can be performed according to the temperature state.

[0064] In the upper air embodiment, high-frequency heating is performed only once in the latter part of the cooking process of bread by heating with a heater, but high-frequency heating may be performed multiple times. In this case, heater heating and high frequency heating may be performed simultaneously.

Furthermore, in the above embodiment, the execution timing and execution time of high-frequency heating are determined by taking into account conditions such as the thickness of the bread, the number of slices of bread, the temperature at the start of cooking the bread, and the temperature at the start of cooking in the heating chamber. However, the execution timing or execution time may be changed by considering each condition individually, without considering all of these conditions.

Furthermore, in the above embodiment, the heater heating time T
1 and high frequency heating time T2 to shift to high frequency heating, for example, the degree of baking of the bread may be detected by an optical sensor and shift to high frequency heating may be performed.

In the above embodiment, the case of heating bread was described, but if the variables B, A, H, W, and P are slightly changed, the method can be similarly applied to heating rice cake.

In addition, the present invention is not limited to the above-mentioned embodiments, and it goes without saying that the present invention can be implemented with appropriate modifications within the scope of the gist.

[0069]

[Effect of the invention] Since the present invention is as explained above,
It has the following effects.

According to the microwave oven of claim 1, high-frequency heating is carried out during at least a part of the second half of the cooking process, which mainly involves heating the food by the heater, so that the inside of the food is kept in good condition. The food can be heated to an appropriate finish.

[0071] According to the microwave oven of claim 2, since the execution timing or execution time of the high-frequency heating is changed depending on the thickness of the object to be cooked, an appropriate finish can be obtained for each object even if the thickness of the object to be cooked differs. Can be cooked to.

[0072] According to the microwave oven of claim 3, since the execution timing or execution time of the high-frequency heating is changed depending on the number of items to be cooked, an appropriate finish can be obtained for each item even if the number of items to be cooked is different. Can be cooked to.

According to the microwave oven according to the fourth aspect, since the execution timing or the execution time of high-frequency heating is changed depending on the temperature at the start of cooking of the food to be cooked, even if the temperature of the food to be cooked differs, Each can be cooked to an appropriate finish.

According to the microwave oven of claim 5, the execution timing or execution time of the high-frequency heating is changed depending on the temperature at the start of cooking in the heating chamber, so that the food to be cooked can be repeatedly cooked. Even if the cooking temperature is high, the food can be cooked to an appropriate finish according to the temperature in each heating chamber.

[Brief explanation of the drawing]

FIG. 1: Time chart for explaining the operation of one embodiment of the present invention.

[Figure 2] Electrical configuration diagram

[Figure 3] Flowchart for explaining the action part 1

[Figure 4] Flowchart part 2

[Figure 5] Flowchart part 3

[Figure 6] Flowchart No. 4

[Figure 7] Flowchart part 5

[Figure 8] Diagram explaining the effect of basic time

[Figure 9] Diagram explaining the effect of finish correction

[Figure 10] Diagram explaining the effect of repetitive correction

[Figure 11] Diagram explaining the effect of sheet number correction

[Figure 12] Diagram explaining the effect of material temperature correction

[Explanation of symbols]

In the drawing, 8 is an upper heater, 10 is a lower heater, 16 is a magnetron, 17 is a microcomputer (control means), 2
0 indicates a temperature sensor, 21 indicates a gas sensor, and 23 indicates a weight sensor.

Claims (5)

[Claims] 1. A control means having a function of performing cooking by high-frequency heating of the to-be-cooked object in a heating chamber and a function of performing cooking of double-sided grilling by heater heating, and this control means mainly performs heating by the heater. A microwave oven characterized in that the microwave oven is configured to perform high-frequency heating during at least a part of the latter half of cooking. 2. The microwave oven according to claim 1, wherein the control means changes the execution timing or execution time of the high-frequency heating depending on the thickness of the object to be cooked. 3. The microwave oven according to claim 1, wherein the control means changes the execution timing or execution time of high-frequency heating depending on the number of items to be cooked. 4. The microwave oven according to claim 1, wherein the control means changes the execution timing or execution time of the high-frequency heating depending on the temperature at the start of cooking of the object to be cooked. 5. The microwave oven according to claim 1, wherein the control means changes the execution timing or execution time of the high-frequency heating depending on the temperature at the start of cooking in the heating chamber.