High-frequency heating cooker, control method for high-frequency heating cooker, and program

Abstract

To provide a high-frequency heating cooker capable of safely and appropriately performing deep frying.SOLUTION: A high-frequency heating cooker includes: a high-frequency heating section that enables heating with high frequency; a temperature sensor that detects a temperature within a heating chamber; an operation section that receives an operation from a user; and a control section that controls the high-frequency heating section. In the case where the operation section receives an operation for selecting second cooking for heating at an upper limit temperature lower than that of first cooking of deep frying and heating is started, when a temperature detected by the temperature sensor reaches a first temperature, the control section turns off output of the high-frequency heating section or lowers the output of the high-frequency heating section. In the case where the operation section receives an operation for selecting the first cooking and heating is started, when the temperature detected by the temperature sensor reaches a second temperature higher than the first temperature, the control section turns off output of the high-frequency heating section or lowers the output of the high-frequency heating section.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present disclosure relates to a high-frequency heating cooker, a control method for a high-frequency heating cooker, and a program. [Background technology]

[0002] Patent Document 1 discloses a technique for frying food by heating oil in an oil vat with microwaves, and then raising and lowering the oil vat or a frying container to immerse the frying container in the oil in the oil vat. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 8-089419 Summary of the Invention [Problem to be solved by the invention]

[0004] The present disclosure provides a high-frequency cooking device that can safely and appropriately perform deep-frying cooking, a control method for a high-frequency cooking device, and a program. [Means for solving the problem]

[0005] The high frequency heating cooker of the present disclosure comprises a high frequency heating unit that heats an object to be heated placed in a heating chamber using high frequency waves, a temperature sensor that detects the temperature inside the heating chamber, an operation unit that receives an operation from a user to select a type of cooking, and a control unit that controls the high frequency heating unit to heat the object to be heated, wherein when the operation unit receives an operation to select a second cooking method that heats the object at a lower upper limit temperature than a first cooking method that involves deep-frying in oil and heating is started by the high frequency heating unit, the control unit turns off the output of the high frequency heating unit or reduces the output of the high frequency heating unit when the temperature detected by the temperature sensor reaches a first temperature, and when the operation unit receives an operation to select the first cooking method and heating is started by the high frequency heating unit, the control unit turns off the output of the high frequency heating unit or reduces the output of the high frequency heating unit when the temperature detected by the temperature sensor reaches a second temperature that is higher than the first temperature.

[0006] Furthermore, the control method for a high frequency heating cooker in the present disclosure is a control method for a high frequency heating cooker equipped with a high frequency heating unit that heats an object to be heated contained in a heating chamber by high frequency waves, and when an operation to select a second cooking method in which heating is performed at an upper limit temperature lower than a first cooking method in which frying is performed in oil is accepted and heating by the high frequency heating unit is started, the output of the high frequency heating unit is turned off or the output of the high frequency heating unit is reduced when the temperature inside the heating chamber reaches a first temperature, and when an operation to select the first cooking method is accepted and heating by the high frequency heating unit is started and the temperature inside the heating chamber reaches a second temperature higher than the first temperature, the output of the high frequency heating unit is turned off or the output of the high frequency heating unit is reduced.

[0007] In addition, the program disclosed herein receives an operation from a processor of a high-frequency heating cooker equipped with a high-frequency heating unit that heats an object to be heated contained in a heating chamber using high-frequency waves to select a second cooking method that heats the object at a lower upper limit temperature than a first cooking method that involves frying in oil, and when heating using the high-frequency heating unit is started, the program turns off the output of the high-frequency heating unit or reduces the output of the high-frequency heating unit when the temperature inside the heating chamber reaches a first temperature; and when heating using the high-frequency heating unit is started, the program receives an operation from a processor of a high-frequency heating cooker equipped with a high-frequency heating unit that heats an object to be heated contained in a heating chamber using high-frequency waves, and when heating using the high-frequency heating unit is started, the program turns off the output of the high-frequency heating unit or reduces the output of the high-frequency heating unit when the temperature inside the heating chamber reaches a second temperature that is higher than the first temperature. [Effects of the Invention]

[0008] The high frequency cooking device, the control method for the high frequency cooking device, and the program disclosed herein can heat the object to be heated at a higher temperature when cooking in oil than when cooking other than deep frying. Furthermore, the high frequency cooking device, the control method for the high frequency cooking device, and the program disclosed herein can turn off the output of the high frequency heating unit or reduce the output of the high frequency heating unit as the temperature in the heating chamber rises, even when cooking in oil. Therefore, deep frying can be performed safely and appropriately. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a perspective view of a high-frequency heating cooker according to a first embodiment; [Figure 2] FIG. 1 is a perspective view of a high-frequency heating cooker with a door removed according to a first embodiment; [Figure 3] FIG. 1 is a front view of a high-frequency heating cooker with a rear member removed according to a first embodiment; [Figure 4] FIG. 1 is a block diagram showing a configuration of a control system of a high-frequency heating cooker according to a first embodiment. [Figure 5] 1 is a flowchart showing the operation of the high frequency heating cooker according to the first embodiment. [Figure 6] 1 is a diagram showing the relationship between the change in oil temperature over time and the output of the high-frequency heating unit in the first embodiment. [Figure 7] 1 is a flowchart showing the operation of the high frequency heating cooker according to the first embodiment. [Figure 8] 1 is a flowchart showing the operation of the high frequency heating cooker according to the first embodiment. [Figure 9] Table for determining the output of the high frequency heating unit, the maximum preheating time, and the predicted preheating completion time after 5 minutes from the start of cooking in the first embodiment. [Figure 10] 1 is a diagram illustrating the operation of the high-frequency heating cooker according to the first embodiment. [Figure 11] 1 is a diagram illustrating the operation of the high-frequency heating cooker according to the first embodiment. [Figure 12] 1 is a diagram illustrating the operation of the high-frequency heating cooker according to the first embodiment. [Figure 13] Table for determining the second temperature and the third temperature in the first embodiment [Figure 14] 1 is a flowchart showing the operation of the high frequency heating cooker according to the first embodiment. [Figure 15] Graph showing the change in oil temperature over time when the oil temperature rises by 40° C. or more within 1 minute after starting deep-frying in the first embodiment. [Figure 16] Graph showing the change in oil temperature over time when the oil temperature rises by 80° C. or more in 6 minutes after starting deep-frying in the first embodiment. [Figure 17] 1 is a flowchart showing the operation of the high frequency heating cooker 1 according to the first embodiment. [Figure 18] FIG. 1 is a diagram schematically illustrating temperature detection by a temperature sensor according to the first embodiment. [Figure 19] 1 is a flowchart showing the operation of the high frequency heating cooker 1 according to the first embodiment. [Figure 20] 1 is a flowchart showing the operation of the high frequency heating cooker 1 according to the first embodiment. [Figure 21] 1 is a diagram showing the relationship between the change in oil temperature over time, the output of the high-frequency heating unit, and the output of the convection heater unit in the second embodiment. [Figure 22] FIG. 10 is a block diagram showing the configuration of a control system of a high-frequency heating cooker according to a third embodiment. [Figure 23] Graph showing changes in reflectance over time in the third embodiment [Figure 24] 10 is a diagram showing changes in oil temperature over time according to the amount of oil in the fourth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0010] (Findings that formed the basis of this disclosure) At the time the inventors arrived at the idea of ​​the present disclosure, there were cooking devices that heated oil using high-frequency waves such as microwaves and fried food in the heated oil. However, the inventors discovered a problem with the conventional technology in that a mechanism for moving food to be fried in oil to the oil was required, making the cooking device configuration complex. In order to solve this problem, the inventors came up with the subject matter of the present disclosure. Therefore, the present disclosure provides a high-frequency heating cooker capable of performing deep-frying cooking with a simple configuration, a control method for a high-frequency heating cooker, and a program.

[0011] (Embodiment 1) First, the first embodiment will be described.

[0012] [1-1.Configuration] [1-1-1. Configuration of high frequency cooking device] FIG. 1 is a perspective view of a high-frequency heating cooker 1 according to the first embodiment. The high frequency cooking device 1 shown in Fig. 1 has a box-shaped cabinet 2. In Fig. 1 and Fig. 2 described later, arrows indicate directions corresponding to the cabinet 2 when the high frequency cooking device 1 is installed. The symbol UP indicates the upward direction, the symbol R indicates the rightward direction, and the symbol FR indicates the forward direction.

[0013] An openable door 3 is provided on the front surface of the cabinet 2 to open and close an opening 4A of the heating chamber 4. In the high frequency heating cooker 1, when the door 3 is opened, the heating chamber 4 provided inside the cabinet 2 is exposed. The heating chamber 4 contains an object to be heated by a high frequency heating unit 6, which will be described later. The high frequency heating unit 6 heats the object to be heated contained in the heating chamber 4, thereby cooking the object to be heated.

[0014] An operation panel 5 is disposed on the front surface of the cabinet 2. The operation panel 5 may be disposed next to the door 3. The operation panel 5 includes switches, a touch panel, and the like that accept operations by the user. The operation panel 5 is an example of an "operation section" and an "announcement section."

[0015] Fig. 2 is a perspective view of the high frequency heating cooker 1 with the door 3 removed. Fig. 3 is a front view of the high frequency heating cooker 1 with the rear surface 45 member removed. The heating chamber 4 is configured in a substantially rectangular parallelepiped shape with a right side surface 41, a left side surface 42, a top surface 43, a bottom surface 44, and a back surface 45, all of which are made of a metal material.

[0016] A high-frequency heating unit 6 is installed below the heating chamber 4. The high-frequency heating unit 6 may be installed above or to the side of the heating chamber 4. The high-frequency heating unit 6 has a mechanism for heating an object to be heated housed in the heating chamber 4 with high-frequency waves (e.g., microwaves). This mechanism includes a high-frequency generating unit 61 (see FIG. 4) that generates high-frequency waves, an antenna 62 (see FIG. 4) that radiates the high-frequency waves generated by the high-frequency generating unit 61 into the heating chamber 4, and a waveguide 63 (see FIG. 4) that guides the high-frequency waves generated by the high-frequency generating unit 61 to the antenna 62. The bottom surface 44 of the heating chamber 4 is covered with a ceramic plate that is permeable to high-frequency waves. In the heating chamber 4, the object to be heated is heated by the high-frequency waves that have passed through the bottom surface 44 from the high-frequency heating unit 6.

[0017] A temperature sensor 47 is provided on the upper part of the right side surface 41 of the heating chamber. The temperature sensor 47 is a sensor that detects the temperature inside the heating chamber 4. More specifically, the temperature sensor 47 estimates the temperature inside the heating chamber 4 as the temperature of the object to be heated inside the heating chamber 4 (specifically, the surface temperature). The temperature sensor 47 in this embodiment is a sensor in which 64 infrared elements are arranged in 8 rows and 8 columns. The placing area where the object to be heated is placed, i.e., the entire bottom surface 44, is divided into 64 areas BA (see FIG. 18), and the temperature sensor 47 detects the temperature for each of the divided areas BA. Temperature sensor 47 is an example of a "sensor." The temperature inside heating chamber 4 is an example of a "condition inside the heating chamber."

[0018] A planar heater unit 81 that heats the object to be heated is installed on the top surface 43 of the heating chamber 4. The planar heater unit 81 has mechanisms such as a planar heater, a plate that presses the planar heater against the top surface of the heating chamber 4, and a blocking plate that blocks the heat from the planar heater from being transferred upward. In the heating chamber 4, the object to be heated is heated by the planar heater unit 81.

[0019] An air intake 45A consisting of a plurality of punched holes is formed on the rear surface 45 of the heating chamber 4. Furthermore, a plurality of air outlets 45B consisting of a plurality of punched holes are formed on the rear surface of the heating chamber 4. The first air outlet 45C is formed to extend in the left-right direction at a position higher than the second air outlet 45D, the third air outlet 45E, the fourth air outlet 45F, and the fifth air outlet 45G. The fifth air outlet 45G is formed to extend in the left-right direction at a position lower than the second air outlet 45D, the third air outlet 45E, and the fourth air outlet 45F. The second air outlet 45D is formed to the left of the first air intake 45A. The third air outlet 45E is formed between the first air intake 45A and the second air intake 45B in the left-right direction. The fourth air outlet 45F is formed to the right of the second air intake 45B.

[0020] A convection heater unit 82 is installed behind back surface 45 of heating chamber 4. Convection heater unit 82 includes fan 821 that draws air through intake port 45A and blows it out through outlet 45B, and heater 822 that heats the air drawn in by fan 821. The fan 821 is an example of a "blower fan."

[0021] Fan 821 is disposed opposite air intake port 45A and draws air from heating chamber 4 through air intake port 45A. The air drawn in by fan 821 is blown out from each air outlet 45B. In this way, convection heater unit 82 circulates air in heating chamber 4. Furthermore, convection heater unit 82 heats the object to be heated with the air blown out from each air outlet 45B.

[0022] A cooling fan 9 for cooling the inside of the heating chamber 4 is provided below the bottom surface 44 of the heating chamber 4. The cooling fan 9 draws in outside air from an outside air intake port formed on the bottom surface or the like of the high-frequency heating cooker 1, and cools the hardware provided in the control unit 11 (described later) and prevents condensation on the door 3.

[0023] An open / close detector 10 that detects whether the door 3 is open or closed is provided inside the upper right part of the cabinet 2. The open / close detector 10 is configured by a mechanical switch such as a latch switch, for example.

[0024] [1-1-2. Configuration of the control system for high frequency cooking devices] FIG. 4 is a block diagram showing the configuration of a control system of the high-frequency heating cooker 1. As shown in FIG. The high frequency cooking device 1 includes a control unit 11, an operation panel 5, a high frequency heating unit 6, a heater heating unit 8, a cooling fan 9, an open / close detection unit 10, a sound output unit 12, and a temperature sensor 47. The control unit 11 is a device that controls each unit of the high frequency cooking device 1. The control unit 11 is connected to the operation panel 5, the high frequency heating unit 6, the heater heating unit 8, the cooling fan 9, the open / close detection unit 10, the sound output unit 12, and the temperature sensor 47.

[0025] As described above, the operation panel 5 includes switches, a touch panel, and the like. When a switch is operated, the operation panel 5 outputs a signal to the control unit 11. When the touch panel is touched, the operation panel 5 outputs a signal to the control unit 11. The operation panel 5 also displays information on the touch panel under the control of the control unit 11.

[0026] The high-frequency heating unit 6 heats the object to be heated housed in the heating chamber 4 by high-frequency waves under the control of the control unit 11. The high-frequency heating unit 6 includes mechanisms related to heating by high-frequency waves, such as a high-frequency generating unit 61, an antenna 62, and a waveguide 63. The high-frequency generating unit is a magnetron, SSC, or the like.

[0027] The heater heating section 8 uses a heater to heat the object to be heated housed in the heating chamber 4 under the control of the control section 11. The heater heating section 8 includes a planar heater unit 81 and a convection heater unit .

[0028] The cooling fan 9 is driven under the control of the control unit 11.

[0029] The open / close detector 10 detects the open / close state of the door 3 and outputs a signal corresponding to the detected state of the door 3 to the controller 11.

[0030] The sound output unit 12 is composed of a speaker and a buzzer, and outputs sounds under the control of the control unit 11.

[0031] The control unit 11 includes a processor 100 such as a CPU (Central Processing Unit) or an MPU (Micro Processing Unit), a memory 110, and an interface circuit to which other devices are connected.

[0032] The memory 110 is a memory that stores programs and data. The memory 110 stores a control program 111 and data to be processed by the processor 100. The memory 110 has a non-volatile storage area. The memory 110 also has a volatile storage area and constitutes a work area for the processor 100. The memory 110 is constituted by, for example, a ROM (Read Only Memory) or a RAM (Random Access Memory). The control program 111 is an example of a "program."

[0033] The processor 100 reads and executes a control program 111 stored in the memory 110, thereby functioning as a heating execution unit 101, a reception unit 102, a display control unit 103, and a sound output control unit 104.

[0034] The heating execution unit 101 controls at least one of the high frequency heating unit 6 and the heater heating unit 8 to heat the object to be heated housed in the heating chamber 4. The heating execution unit 101 heats the object to be heated in a heating mode corresponding to the type of cooking selected by the user via the operation panel 5. In this embodiment, the heating modes include a deep frying mode and a normal mode.

[0035] The deep-frying mode is a mode for performing cooking by deep-frying in oil (hereinafter referred to as "deep-frying cooking"). In this embodiment, the deep-frying mode illustrates an example in which an object to be heated is heated by the high-frequency heating unit 6. In the deep-frying mode, oil in a container is preheated by heating the oil, and a notification is given when the preheating of the oil is complete. In the deep-frying mode, the user places ingredients in the preheated oil, and after the ingredients are placed in the preheated oil, the oil is heated again to fry the ingredients placed in the oil. If the user selects deep-frying cooking on the operation panel 5 when starting cooking, the heating execution unit 101 heats the object to be heated in the deep-frying mode. Deep frying is an example of "first cooking."

[0036] The normal mode is a mode for performing cooking other than deep-frying (hereinafter referred to as "normal cooking"). In this embodiment, the normal mode illustrates an example in which an object to be heated is heated by the high-frequency heating unit 6. If the user selects normal cooking on the operation panel 5 when starting cooking, the heating execution unit 101 heats the object to be heated in the normal mode. Regular cooking is an example of "second cooking."

[0037] The receiving unit 102 receives instructions given to the operation panel 5 based on signals output by the operation panel 5. The display control unit 103 displays information based on a signal output from the operation panel 5 . The sound output control unit 104 outputs the sound selected by the sound output control unit 104 based on the signal output by the operation panel 5 through the sound output unit 12 .

[0038] [1-2. Operation] Next, the operation of the high frequency heating cooker 1 according to this embodiment will be described. As will be explained later, in the frying mode of this embodiment, the heating time during reheating is corrected and the output of the high-frequency heating section 6 during reheating is corrected depending on the temperature detected by the temperature sensor 47 (for example, the highest temperature among the temperatures at 64 locations). In addition, in the deep frying mode of this embodiment, the output of the high frequency heating unit 6 is turned off or reduced during preheating depending on the temperature detected by the temperature sensor 47. In addition, in the deep frying mode of this embodiment, the maximum preheating time, which is the maximum time for which preheating is possible, the predicted preheating completion time (the time when preheating is predicted to end) displayed during preheating, and the output of the high-frequency heating unit 6 during preheating are determined according to the temperature detected by the temperature sensor 47. In addition, in the deep frying mode of this embodiment, various notifications are made according to the temperature detected by temperature sensor 47. In addition, in the frying mode of this embodiment, the preheating end temperature (the temperature at which preheating ends), the heating time during reheating, and a notification during reheating are performed depending on the item of cooking selected on the operation panel 5 before cooking begins. Before describing these operations, the overall flow of the frying mode will be described with reference to FIGS.

[0039] [1-2-1. Overall flow of frying mode] FIG. 5 is a flowchart showing the operation of the high frequency heating cooker 1 in the deep frying mode. 5 starts, the user has selected deep frying as the type of cooking on the operation panel 5. Also, at the start of the operation of the flowchart in FIG. 5, a container containing oil is placed in the heating chamber 4.

[0040] The heating execution unit 101 determines whether or not to start deep frying (step SA1). When the receiving unit 102 receives an instruction to start cooking, the heating execution unit 101 makes an affirmative determination in step SA1.

[0041] If the heating execution unit 101 determines not to start deep-fry cooking (step SA1: NO), it makes the determination of step SA1 again. On the other hand, if the heating execution unit 101 determines to start deep-fry cooking (step SA1: YES), it starts preheating oil by the high-frequency heating unit 6 (step SA2).

[0042] When preheating oil, if the output of the high-frequency heating unit 6 is not corrected, the heating execution unit 101 heats at an output of 800 W (watts), the maximum output that the high-frequency heating unit 6 can output, or an output similar to 800 W or the maximum output. Hereinafter, the output of the high-frequency heating unit 6 during preheating when the output of the high-frequency heating unit 6 is not corrected will be referred to as the "preheating reference output." Note that an output similar to 800 W is an output within a predetermined range from 800 W, such as 700 W or 1000 W. Furthermore, an output similar to the maximum output is an output within a predetermined range from the maximum output, such as 1000 W when the maximum output is 1200 W.

[0043] During preheating of the oil, the display control unit 103 may display on the operation panel 5 the predicted time for completion of preheating.

[0044] Next, the heating execution unit 101 determines whether or not to end the preheating (step SA3). In step SA3, if the temperature detected by temperature sensor 47 reaches the preheating end temperature, heating execution unit 101 makes an affirmative determination in step SA3. Note that the preheating end temperature is set in the range of 160°C to 250°C, for example. In this embodiment, the preheating end temperature is an example of a "predetermined state."

[0045] If the heating execution unit 101 determines that the preheating has not ended (step SA3: NO), it performs the determination of step SA3 again. On the other hand, if the heating execution unit 101 determines that the preheating has ended (step SA3: YES), the sound output control unit 104 notifies the user that the preheating has ended via the sound output unit 12 (step SA4). Note that in step SA4, the display control unit 104 may also notify the user that the preheating has ended via the operation panel 5.

[0046] Next, the heating execution unit 101 determines whether the door 3 is open (step SA5). If the open / close detection unit 10 detects that the door 3 is open in step SA5, the heating execution unit 101 makes an affirmative determination in step SA5.

[0047] If the heating execution unit 101 determines that the door 3 is not in the open state (step SA5: NO), it makes a judgment in step SA5 again. On the other hand, if the heating execution unit 101 determines that the door 3 is in the open state (step SA5: YES), it stops control of the high-frequency heating unit 6 (step SA6). Note that if the judgment in step SA3 is negative, it may stop control of the high-frequency heating unit 6 in order to maintain the preheating end temperature.

[0048] Next, the heating execution unit 101 determines whether or not to resume heating by the high-frequency heating unit 6 (step SA7). The heating execution unit 101 may make an affirmative determination in step SA7 when the opening / closing detection unit 10 detects a change of the door 3 from the open state to the closed state. Alternatively, the heating execution unit 101 may make an affirmative determination in step SA7 when the opening / closing detection unit 10 detects a change of the door 3 from the open state to the closed state and the reception unit 102 receives an instruction to resume heating.

[0049] If the heating execution unit 101 determines not to resume heating by the high-frequency heating unit 6 (step SA7: NO), it performs the determination of step SA7 again. On the other hand, if the heating execution unit 101 determines to resume heating by the high-frequency heating unit 6 (step SA7: YES), it resumes control of the high-frequency heating unit 6 and resumes heating by the high-frequency heating unit 6 (step SA8).

[0050] During reheating, if the output of the high frequency heating unit 6 is not corrected, the heating execution unit 101 heats at an output of 300 W, the minimum output that the high frequency heating cooker 1 can output, or an output similar to 300 W or the minimum output. Hereinafter, the output of the high frequency heating unit 6 during reheating when the output of the high frequency heating unit 6 is not corrected will be referred to as the "reference output during reheating." Note that an output similar to 300 W is an output within a predetermined range from 300 W, such as 100 W or 500 W. Furthermore, an output similar to the minimum output is an output within a predetermined range from the minimum output, such as 300 W when the minimum output is 100 W. Note that, when reheating, if the output of the high-frequency heating unit 6 is not corrected, the heating execution unit 101 may have a higher output than the standard output during reheating. For example, when reheating, the heating execution unit 101 turns the output on and off at an output of 900 W. At this time, the total on time is about 1 minute. In this example, the heating execution unit 101 can provide the same heating effect to the food as when it is heated for 3 minutes at 300 W. Therefore, when reheating, if the output of the high-frequency heating unit 6 is not corrected, the heating execution unit 101 may have a higher output than the standard output during reheating.

[0051] Next, the heating execution unit 101 determines whether or not to end deep-fry cooking (step SA9). The heating execution unit 101 makes a positive determination in step SA9 if the heating time set when deep-fry cooking was started or the heating time corrected as described below has elapsed since heating was resumed. Note that the heating execution unit 101 may also make a positive determination in step SA9 if a certain amount of time has elapsed since the temperature detected by the temperature sensor 47 increased after heating was resumed. The heating execution unit 101 also makes a positive determination in step SA9 if the open / close detection unit 10 detects that the door 3 has entered the open state.

[0052] When it is determined that deep-fry cooking is to be ended (step SA9: YES), heating execution unit 101 turns off the output of high-frequency heating unit 6, thereby ending deep-fry cooking (step SA10).

[0053] After step SA6, the display control unit 104 may notify the user via the operation panel 5 to put ingredients into the container containing oil. For example, the display control unit 104 may display information such as "Please put ingredients into the container containing oil" on the operation panel 5. This notification may be made by at least one of a sound, a display, and a light such as an LED (Light Emitting Diode).

[0054] Furthermore, after preheating is complete, if the open / close detection unit 10 detects that the door 3 has changed from an open state to a closed state, the display control unit 104 may prompt the user to resume heating via the operation panel 5. The prompt to resume is not limited to a display, but may also be a sound or a light such as an LED.

[0055] FIG. 6 is a graph showing the relationship between the change in oil temperature over time and the output of the high-frequency heating unit 6. 6 shows charts CH1 and CH2. Chart CH1 shows the change in oil temperature over time during deep-frying, with the vertical axis representing the oil temperature and the horizontal axis representing the time elapsed since the start of deep-frying. Chart CH2 is a timing chart showing the on / off of the output of the high-frequency heating unit 6 during deep-frying.

[0056] When deep-frying cooking begins, the heating execution unit 101 turns on the output of the high-frequency heating unit 6. As this output is turned on, the temperature of the oil in the container in the heating chamber 4 rises. FIG. 6 shows a case where the temperature detected by the temperature sensor 47 reaches the preheating end temperature at time T1 after deep-frying cooking begins. Therefore, in the example of FIG. 6, the sound output control unit 104 notifies the user that preheating has ended at time T1. The notification at time T1 may be a light such as an LED or a display on the operation panel 5.

[0057] In Fig. 6, the timing when the door 3 changes from a closed state to an open state is timing T2. Therefore, in the example of Fig. 6, the heating execution unit 101 turns off the output of the high-frequency heating unit 6 at timing T2. Then, the display control unit 103 issues a notification via the operation panel 5 to encourage the user to put ingredients into the container containing oil from timing T2 to timing T4. Note that the display control unit 103 may issue a notification from timing T1 to timing T4. This notification may be made by light such as an LED or by a display on the operation panel 5. This notification may not be issued at all.

[0058] In Figure 6, the timing when the food is added to the oil is T3. When food is added to preheated oil, the heat of the oil is absorbed by the food. Therefore, in the example of Figure 6, the oil temperature drops after T3.

[0059] In Fig. 6, the timing at which heating is resumed is timing T4. Therefore, in the example of Fig. 6, the heating execution unit 101 turns on the output of the high-frequency heating unit 6 again at timing T4.

[0060] In FIG. 6, the timing at which the temperature detected by temperature sensor 47 rises after heating is resumed is time T5.

[0061] In Fig. 6, the timing at which deep-fry cooking ends is timing T6. Therefore, in the example of Fig. 6, heating execution unit 101 turns off the output of high-frequency heating unit 6 at timing T6 to end deep-fry cooking.

[0062] The above is the overall flow of the deep frying mode. As described above, in the deep frying mode, the heating time is controlled, the output of the high frequency heating unit 6 is controlled, various times are determined, various changes are made, and various notifications are issued, depending on the temperature detected by the temperature sensor 47. These operations will be explained below.

[0063] [1-2-2. Various corrections related to reheating] First, correction of the heating time during reheating and correction of the output of the high-frequency heating unit 6 during reheating will be described with reference to FIG. Fig. 7 is a flowchart showing the operation of heating execution unit 101. The operation shown in Fig. 7 is an operation performed in the frying mode.

[0064] The heating execution unit 101 determines whether or not to resume heating (step SB1). The determination in step SB1 is made in the same manner as the determination in step SA8.

[0065] When the heating execution unit 101 determines not to resume heating (step SB1: NO), it performs the determination of step SB1 again. On the other hand, when the heating execution unit 101 determines to resume heating (step SB1: YES), it determines whether to correct at least one of the heating time during reheating and the output of the high-frequency heating unit 6 during reheating (step SB2).

[0066] Step SB2 will now be described in detail. Based on the temperature detected by the temperature sensor 47, the heating execution unit 101 calculates the amount of decrease in oil temperature during the period from the end of preheating until the door 3 changes from the open state to the closed state. The heating execution unit 101 makes a negative determination in step SB2 if the calculated amount of decrease in oil temperature is not in the range of 0°C to 50°C and is not equal to or greater than 70°C. On the other hand, the heating execution unit 101 makes a positive determination in step SB2 if the calculated amount of decrease in oil temperature is in the range of 10°C to 50°C or is equal to or greater than 70°C. Note that the values ​​of 0°C to 50°C and 70°C are merely examples.

[0067] If the heating execution unit 101 determines not to correct at least one of the heating time during reheating and the output of the high-frequency heating unit 6 during reheating (step SB2: NO), it resumes heating (step SB3) without correcting the heating time and the output of the high-frequency heating unit 6. In step SB3, the heating execution unit 101 resumes heating at the standard output during reheating for the heating time set on the operation panel 5 when cooking started.

[0068] On the other hand, if the heating execution unit 101 determines that at least one of the heating time during reheating and the output of the high-frequency heating unit 6 during reheating should be corrected (step SB2: YES), it corrects at least one of the heating time during reheating and the output of the high-frequency heating unit 6 during reheating (step SB4).

[0069] Step SB4 will now be described in detail. Based on the temperature detected by the temperature sensor 47, the heating execution unit 101 calculates the amount of decrease in oil temperature during the period from the end of preheating until the door 3 changes from the open state to the closed state. When the calculated decrease in oil temperature is in the range of 10°C to 50°C, the heating execution unit 101 corrects the output of the high-frequency heating unit 6 during reheating so that it is higher than the reference output during reheating. Alternatively, if the calculated decrease in oil temperature is within the range of 10°C to 50°C, the heating execution unit 101 corrects the heating time during reheating to be shorter than the heating time set when deep-frying cooking began. Alternatively, if the calculated decrease in oil temperature is in the range of 10°C to 50°C, the heating execution unit 101 corrects the output of the high-frequency heating unit 6 during reheating to be higher than the standard output during reheating, and corrects the heating time during reheating to be shorter than the heating time set at the start of deep-frying.

[0070] Step SB4 will now be described in detail. When the calculated decrease in oil temperature is 70° C. or more, the heating execution unit 101 corrects the output of the high-frequency heating unit 6 during reheating so that it is lower than the reference output during reheating. Alternatively, if the calculated drop in oil temperature is 70°C or more, the heating execution unit 101 corrects the heating time during reheating so that it is longer than the heating time set when deep-frying cooking began. Alternatively, if the calculated decrease in oil temperature is 70°C or more, the heating execution unit 101 corrects the output of the high-frequency heating unit 6 during reheating to be lower than the standard output during reheating, and corrects the heating time during reheating to be longer than the heating time set when starting deep-fry cooking.

[0071] After correcting at least one of the heating time during reheating and the output of the high-frequency heating unit 6 during reheating, the heating execution unit 101 resumes heating based on the corrections made in step SB4 (step SB5). Note that, in the resumption of step SB5, the heating time or output that was not corrected becomes the same as the heating time or output in the resumption of step SB3.

[0072] If the amount of decrease in oil temperature calculated by the heating execution unit 101 is 10°C or less, the display control unit 103 may notify via the operation panel 5 that no ingredients have been added. If the amount of decrease in oil temperature calculated is 10°C or less, the heating execution unit 101 may not resume heating. If the temperature detected by the temperature sensor 47 is 100°C or less when reheating, it is determined that no food to be heated has been placed in the heating chamber 4, and the heating execution unit 101 may not resume heating. Note that the values ​​of 10°C and 100°C are merely examples.

[0073] [1-2-3. Various decisions related to preheating] Next, the determination of the output of the high frequency heating unit 6 related to preheating, the maximum preheating time, and the predicted preheating completion time will be described with reference to FIG. Fig. 8 is a flowchart showing the operation of the high frequency heating cooker 1. The operation shown in Fig. 8 is an operation performed in the deep frying mode.

[0074] Next, the heating execution unit 101 determines whether or not five minutes have passed since the start of deep-fry cooking (step SC1). Note that this five minutes is merely an example.

[0075] If the heating execution unit 101 determines that five minutes have not elapsed since the start of deep-fry cooking (step SC1: NO), it performs the determination of step SC1 again. On the other hand, if the heating execution unit 101 determines that five minutes have elapsed since the start of deep-fry cooking (step SC1: YES), it determines the output of the high-frequency heating unit 6, the maximum preheating time, and the predicted preheating completion time for the five minutes after the start of cooking (step SC2).

[0076] Step SC2 will now be described in detail. The heating execution unit 101 calculates the amount of oil temperature rise during the period from the start of deep-fry cooking until five minutes have elapsed, based on the temperature detected by the temperature sensor 47. Then, the heating execution unit 101 applies the oil temperature at the start of deep-fry cooking and the calculated amount of oil temperature rise to table TA1 shown in Fig. 9 to determine the output of the high-frequency heating unit 6, the maximum preheating time, and the predicted preheating completion time from five minutes after the start of cooking.

[0077] Fig. 9 is a table TA1 for determining the output of the high frequency heating unit 6, the maximum preheating time, and the predicted preheating completion time five minutes after the start of cooking. Note that the values ​​shown in Fig. 9 are merely an example.

[0078] If the oil temperature at the start of deep-frying is 50°C or below and the calculated rise in oil temperature is 120±10°C, the heating execution unit 101 determines the predicted preheating completion time to be "11 minutes," determines the output of the high-frequency heating unit 5 minutes after the start of preheating to be "600W," and determines the maximum preheating time to be "15 minutes."

[0079] Furthermore, if the oil temperature at the start of deep-frying is 50°C or below and the calculated rise in oil temperature is 100±10°C, the heating execution unit 101 determines the predicted preheating completion time to be "14 minutes," determines the output of the high-frequency heating unit 6 from 5 minutes after the start of preheating to be "800W," determines the output of the high-frequency heating unit 6 from 10 minutes after the start of preheating to be "600W," and determines the maximum preheating time to be "18 minutes."

[0080] Furthermore, if the oil temperature at the start of deep-frying is 50°C or below and the calculated rise in oil temperature is 80±10°C, the heating execution unit 101 determines the predicted preheating end time to be "17 minutes," the output of the high-frequency heating unit 6 from 5 minutes after the start of preheating to be "1000W," the output of the high-frequency heating unit 6 from 8 minutes after the start of preheating to be "800W," the output of the high-frequency heating unit 6 from 10 minutes after the start of preheating to be "600W," and the maximum preheating time to be "20 minutes."

[0081] Furthermore, if the oil temperature at the start of deep-frying is above 50°C and below 90°C, and the calculated rise in oil temperature is 90±10°C, the heating execution unit 101 determines the predicted preheating completion time to be "8 minutes," determines the output of the high-frequency heating unit 6 from 5 minutes after the start of preheating to be "600W," and determines the maximum preheating time to be "13 minutes."

[0082] Furthermore, if the oil temperature at the start of deep-frying is above 50°C and below 90°C, and the calculated rise in oil temperature is 70±10°C, the heating execution unit 101 determines the predicted preheating end time to be "11 minutes," determines the output of the high-frequency heating unit 6 from 5 minutes after the start of preheating to be "800W," determines the output of the high-frequency heating unit 6 from 10 minutes after the start of preheating to be "600W," and determines the maximum preheating time to be "15 minutes."

[0083] Furthermore, if the oil temperature at the start of deep-frying is above 50°C and below 90°C, and the calculated rise in oil temperature is 50±10°C, the heating execution unit 101 determines the predicted preheating completion time to be "14 minutes," determines the output of the high-frequency heating unit 6 5 minutes after the start of preheating to be "800W," determines the output of the high-frequency heating unit 6 10 minutes after the start of preheating to be "600W," and determines the maximum preheating time to be "17 minutes."

[0084] Furthermore, if the oil temperature at the start of deep-frying is 90°C or higher and the calculated rise in oil temperature is 85±10°C, the heating execution unit 101 determines the predicted preheating completion time to be "6 minutes," determines the output of the high-frequency heating unit 6 from 5 minutes after the start of preheating to be "600W," and determines the maximum preheating time to be "11 minutes."

[0085] Furthermore, if the oil temperature at the start of deep-frying is 90°C or higher and the calculated rise in oil temperature is 65±10°C, the heating execution unit 101 determines the predicted preheating completion time to be "9 minutes," determines the output of the high-frequency heating unit 6 from 5 minutes after the start of preheating to be "600W," and determines the maximum preheating time to be "13 minutes."

[0086] Furthermore, if the oil temperature at the start of deep-frying is 90°C or higher and the calculated rise in oil temperature is 55±10°C, the heating execution unit 101 determines the predicted preheating end time to be "12 minutes," the output of the high-frequency heating unit 6 after 5 minutes of preheating to be "800W," the output of the high-frequency heating unit 6 after 10 minutes from the start of preheating to be "600W," and the maximum preheating time to be "15 minutes."

[0087] 8, after making the decision in step SC2, the heating execution unit 101 continues preheating based on the determined output of the high-frequency heating unit 6 and the determined maximum preheating time (step SC3). In addition, the display control unit 103 displays the determined predicted preheating end time on the operation panel 5 (step SC3).

[0088] [1-2-4. Operation related to the output of the high frequency heating unit to ensure user safety] In the deep frying mode, the output of the high frequency heating unit 6 is controlled in accordance with the temperature detected by the temperature sensor 47 in order to ensure the safety of the user. First, prior to describing the control operation, the operation of the high frequency heating cooker 1 in the normal mode will be described with reference to FIG.

[0089] 10 is a diagram for explaining the operation of the high frequency heating cooker 1 in the normal mode. FIG. 10 shows the relationship between the change in temperature of the object to be heated over time and the output of the high frequency generating section 61.

[0090] 10 shows charts CH3 and CH4. Chart CH3 shows the temperature of the object over time, with the vertical axis representing temperature and the horizontal axis representing the time elapsed since the start of normal cooking. Chart CH4 is a timing chart showing the on / off of the output of the high-frequency heating unit 6.

[0091] When normal cooking starts, the heating execution unit 101 turns on the output of the high-frequency heating unit 6. As a result of this turning on, the temperature of the object to be heated in the heating chamber 4 rises. FIG. 10 shows a case where the temperature detected by the temperature sensor 47 reaches a first temperature at timing T7 after normal cooking starts. The first temperature is a temperature above the boiling point of water, and in the example of FIG. 6, it is 120°C. When the temperature detected by the temperature sensor 47 reaches the first temperature, the heating execution unit 101 turns off the output of the high-frequency heating unit 6 at timing T7.

[0092] In this way, in the normal mode, when the temperature detected by temperature sensor 47 reaches the first temperature, the output of high frequency heating unit 6 is turned off. That is, in normal cooking, heating is performed with the first temperature as the upper limit temperature.

[0093] Next, with reference to FIG. 11, the operation of the high frequency heating cooker 1 in the deep frying mode will be described.

[0094] 11 is a diagram for explaining the operation of the high frequency heating cooker 1 in the deep frying mode. FIG. 11 shows the relationship between the change in oil temperature over time and the output of the high frequency heating unit 6.

[0095] 11 shows charts CH5 and CH6. Chart CH5 shows the change in oil temperature over time, with the vertical axis representing the oil temperature and the horizontal axis representing the time elapsed since the start of deep-frying. Chart CH6 is a timing chart showing the on / off of the output of the high-frequency heating unit 6.

[0096] When deep-frying begins, heating execution unit 101 turns on the output of high-frequency heating unit 6. As the oil temperature rises, the oil temperature rises. FIG. 11 shows a case where the temperature detected by temperature sensor 47 reaches the second temperature at timing T8 after deep-frying begins. The second temperature is set near the flash point of oil, and is 250°C in the example of FIG. 11. When the temperature detected by temperature sensor 47 reaches the second temperature, heating execution unit 101 turns off the output of high-frequency generating unit 61 at timing T8.

[0097] In this way, in the deep frying mode, even if the temperature detected by the temperature sensor 47 reaches the first temperature, the output of the high frequency heating unit 6 is not turned off, and the output of the high frequency heating unit 6 is turned off when the temperature detected by the temperature sensor 47 reaches the second temperature.

[0098] When the temperature detected by the temperature sensor 47 reaches the second temperature, the heating execution unit 101 may reduce the output of the high frequency heating unit 6 below the output before the temperature reached the second temperature. In this configuration, the high frequency heating cooker 1 may perform the following operation.

[0099] That is, when the temperature detected by the temperature sensor 47 reaches the second temperature, the display control unit 104 displays information on the operation panel 5 to warn the user to be careful about the oil temperature. For example, when the temperature detected by the temperature sensor 47 reaches the second temperature, the display control unit 103 displays information such as "The oil temperature is high. Please be careful" on the operation panel 5. Note that the manner in which this information is not limited to display, but may be at least one of a sound, a display, and a light such as an LED. Furthermore, when the temperature detected by the temperature sensor 47 reaches a third temperature higher than the second temperature, the heating execution unit 101 turns off the output of the high-frequency heating unit 6. Along with this turning-off, the display control unit 103 issues a warning about the oil temperature by displaying information on the operation panel 5. For example, when the temperature detected by the temperature sensor 47 reaches the third temperature, the display control unit 103 displays information such as "!! WARNING!! The oil temperature is dangerously high" on the operation panel 5. The notification of this information is not limited to a visual display, and may be at least one of a sound, a display, and a light such as an LED. When the temperature detected by the temperature sensor 47 reaches the third temperature, the high-frequency heating unit 6 may stop the cooling fan 9 to create an oxygen-deficient state in the heating chamber 4.

[0100] A more specific description will be given with reference to FIG. 12 is a diagram for explaining the operation of the high frequency heating cooker 1 in the deep frying mode. FIG. 12 shows the relationship between the change in oil temperature over time and the output of the high frequency heating unit 6.

[0101] 12 shows charts CH7 and CH8. Chart CH7 shows the change in oil temperature over time, with the vertical axis representing the oil temperature and the horizontal axis representing the time elapsed since the start of deep-frying. Chart CH8 is a timing chart showing the on / off of the output of the high-frequency heating unit 6.

[0102] When deep-frying cooking begins, the heating execution unit 101 turns on the output of the high-frequency heating unit 6. As a result of this turning on, the oil temperature in the heating chamber 4 rises. FIG. 12 shows a case where the temperature detected by the temperature sensor 47 reaches the second temperature at timing T9 after deep-frying cooking begins. In the example of FIG. 12, the second temperature is 250°C. When the temperature detected by the temperature sensor 47 reaches the second temperature, the heating execution unit 101 reduces the output of the high-frequency heating unit 6 below the output before the second temperature was reached. Then, at timing T9, the display control unit 103 issues a warning to pay attention to the oil temperature.

[0103] FIG. 12 shows a case where the oil temperature continues to rise even when the output of the high-frequency heating unit 6 is reduced. Timing T10 in FIG. 12 shows the timing when the temperature detected by the temperature sensor 47 reaches the third temperature. The third temperature is set to the ignition temperature of the oil, and is 350°C in the example of FIG. 12. When the temperature detected by the temperature sensor 47 reaches the third temperature, the heating execution unit 101 turns off the output of the high-frequency heating unit 6 at timing T10. Then, the display control unit 103 issues a warning about the oil temperature at timing T10.

[0104] In addition, in the case of a configuration in which the output of the high-frequency heating section 6 is reduced when the temperature detected by the temperature sensor 47 reaches the second temperature, the high-frequency heating cooker 1 may determine the second temperature and the third temperature based on the temperature detected by the temperature sensor 47. This decision is now detailed.

[0105] The heating execution unit 101 calculates the amount of rise in oil temperature during the period from the start of deep-frying to 5 minutes after the start of deep-frying, based on the temperature detected by the temperature sensor 47. The heating execution unit 101 then applies the oil temperature at the start of deep-frying and the calculated amount of rise in oil temperature to table TA2 shown in Fig. 13 to determine the second temperature and the third temperature.

[0106] FIG. 13 is an example of a table TA2 for determining the second temperature and the third temperature.

[0107] If the oil temperature at the start of deep-frying is 50°C or lower and the calculated increase in oil temperature is 120±10°C, the heating execution unit 101 determines the second temperature to be "230°C" and the third temperature to be "310°C."

[0108] In addition, if the oil temperature when deep-frying begins is 50°C or lower and the calculated increase in oil temperature is 100±10°C, the heating execution unit 101 determines the second temperature to be "240°C" and the third temperature to be "330°C."

[0109] In addition, if the oil temperature when deep-frying begins is 50°C or lower and the calculated increase in oil temperature is 80±10°C, the heating execution unit 101 determines the second temperature to be "250°C" and the third temperature to be "350°C."

[0110] In addition, if the oil temperature at the start of deep-frying is greater than 50°C and less than 90°C, and the calculated increase in oil temperature is 90±10°C, the heating execution unit 101 determines the second temperature to be "230°C" and the third temperature to be "310°C."

[0111] In addition, if the oil temperature at the start of deep-frying is greater than 50°C and less than 90°C, and the calculated increase in oil temperature is 70±10°C, the heating execution unit 101 determines the second temperature to be "240°C" and the third temperature to be "330°C."

[0112] In addition, if the oil temperature at the start of deep-frying is greater than 50°C and less than 90°C, and the calculated increase in oil temperature is 50±10°C, the heating execution unit 101 determines the second temperature to be "250°C" and the third temperature to be "350°C."

[0113] In addition, if the oil temperature at the start of deep-frying is 90°C or higher and the calculated increase in oil temperature is 85±10°C, the heating execution unit 101 determines the second temperature to be "230°C" and the third temperature to be "310°C."

[0114] In addition, if the oil temperature at the start of deep-frying is 90°C or higher and the calculated increase in oil temperature is 65±10°C, the heating execution unit 101 determines the second temperature to be "240°C" and the third temperature to be "330°C."

[0115] In addition, if the oil temperature at the start of deep-frying is 90°C or higher and the calculated increase in oil temperature is 55±10°C, the heating execution unit 101 determines the second temperature to be "250°C" and the third temperature to be "350°C."

[0116] [1-2-5. Operation related to stopping heating at the first temperature] In this embodiment, there are cases where heating is stopped when the temperature detected by temperature sensor 47 reaches a first temperature. Next, the operation of the high frequency heating cooker 1 when heating is stopped at the first temperature will be described.

[0117] FIG. 14 is a flowchart showing the operation of the high frequency heating cooker 1 when heating is stopped at the first temperature.

[0118] The heating execution unit 101 determines whether or not to start deep frying (step SD1). The determination in step SD1 is made in the same manner as the determination in step SA1.

[0119] If the heating execution unit 101 determines not to start deep-frying (step SD1: NO), it performs the determination of step SD1 again. On the other hand, if the heating execution unit 101 determines that deep-frying has started (step SD1: YES), it determines whether one minute has passed since the start of deep-frying (step SD2).

[0120] If the heating execution unit 101 determines that one minute has not elapsed since the start of deep-fry cooking (step SD2: NO), it performs the determination in step SD2 again.

[0121] On the other hand, if the heating execution unit 101 determines that one minute has passed since the start of deep-frying (step SD2: YES), it determines whether the temperature detected by the temperature sensor 47 has risen by 40°C or more within one minute since the start of deep-frying (step SD3). One minute is an example of a "second period."

[0122] The heating execution unit 101 calculates the difference between the temperature detected by the temperature sensor 47 when deep-frying cooking begins and the temperature detected by the temperature sensor 47 one minute after deep-frying cooking begins, and makes the decision in step SD3 based on the calculated difference.

[0123] If it is determined that the temperature has risen by 40° C. or more (step SD3: YES), the heating execution unit 101 determines whether the temperature detected by the temperature sensor 47 has reached the first temperature (step SD4). 40°C is an example of the "second degree."

[0124] If the heating execution unit 101 determines that the temperature detected by the temperature sensor 47 has not reached the first temperature (step SD4: NO), it performs the determination of step SD4 again. On the other hand, if the heating execution unit 101 determines that the temperature detected by the temperature sensor 47 has reached the first temperature (step SD4: YES), it turns off the output of the high-frequency heating unit 6 (step SD5). Note that in step SD5, the output of the high-frequency heating unit 6 may be reduced below the output before the temperature detected by the temperature sensor 47 reached the first temperature.

[0125] Returning to the explanation of step SD3, if the heating execution unit 101 determines that the temperature has not risen by 40°C or more (step SD3: NO), it determines whether 6 minutes have passed since the start of deep-fry cooking (step SD6). Six minutes is an example of a "first hour."

[0126] If heating execution unit 101 determines that six minutes have not elapsed since the start of deep-fry cooking (step SD6: NO), it performs the determination of step SD6 again. On the other hand, if heating execution unit 101 determines that six minutes have elapsed since the start of deep-fry cooking (step SD6: YES), it determines whether the temperature detected by temperature sensor 47 has risen by 80°C or more during the six minutes since the start of deep-fry cooking (step SD7). 80°C is an example of a "first degree."

[0127] The heating execution unit 101 calculates the difference between the temperature detected by the temperature sensor 47 when deep-frying starts and the temperature detected by the temperature sensor 47 6 minutes after deep-frying starts, and makes the decision in step SD7 based on the calculated difference.

[0128] If the heating execution unit 101 determines that the temperature has not risen by 80° C. or more (step SD7: NO), it performs the processes of steps SD4 and SD5.

[0129] On the other hand, if it is determined that the temperature has risen by 80°C or more (step SD7: YES), the heating execution unit 101 determines whether the temperature detected by the temperature sensor 47 is below 105°C (step SD8). That is, in step SD8, it is determined whether the oil temperature is below 105°C six minutes after the start of deep-frying. 105°C is an example of a "fourth temperature."

[0130] If the heating execution unit 101 determines that the temperature is less than 105° C. (step SD7: YES), it performs the processes of steps SD4 and SD5.

[0131] On the other hand, if the heating execution unit 101 determines that the temperature is 105° C. or higher (step SD7: NO), it ends this operation related to stopping heating at the first temperature.

[0132] Figure 15 is graph CH9 showing the change in oil temperature over time when the oil temperature rises by 40°C or more within one minute of starting deep-frying. In Chart CH9, the vertical axis is set to oil temperature, and the horizontal axis is set to the elapsed time since the start of deep frying.

[0133] As shown in Fig. 15, at timing T11, one minute after the start of deep-frying, the oil temperature has risen by 40°C. Therefore, in the example of Fig. 15, at timing T12 when the temperature detected by temperature sensor 47 reaches the first temperature, the output of high-frequency heating unit 6 is turned off.

[0134] FIG. 16 is a graph CH10 showing the change in oil temperature over time when the oil temperature rises by 80° C. or more 6 minutes after the start of deep-frying. In Chart CH10, the vertical axis is set to oil temperature, and the horizontal axis is set to the elapsed time since the start of deep frying.

[0135] As shown in Fig. 16, at timing T13, six minutes after the start of deep-frying, the oil temperature has risen by 80° C. Therefore, in the example of Fig. 16, at timing T14 when the temperature detected by temperature sensor 47 reaches the first temperature, the output of high-frequency heating unit 6 is turned off.

[0136] The flowchart shown in FIG. 14 may incorporate the following process. That is, in the flowchart shown in FIG. 14, when the temperature detected by the temperature sensor 47 reaches 120°C, the heating execution unit 101 turns off the output of the high-frequency heating unit 6, and the processor 100 may issue a notification that the selected type of cooking is incorrect (it may be that normal cooking is being performed in deep-frying mode), that the heated object is about to burn, or that the temperature is dangerous. The notification may be audio, visual, or optical. Also, in the flowchart shown in FIG. 14, the processor 100 may issue the notification before the temperature detected by the temperature sensor 47 reaches 120°C (for example, 110°C). The notification may be audio, visual, or optical. The specific numerical values ​​exemplified as the temperature before reaching 120°C are merely examples. Then, in the flowchart shown in FIG. 14, if the temperature detected by the temperature sensor 47 reaches 120° C. after the notification, the heating execution unit 101 turns off the output of the high-frequency heating unit 6. The value of 120°C explained in this paragraph is merely an example.

[0137] [1-2-6. Operation related to stopping heating] The operation in item [1-2-5] is an operation related to stopping heating at the first temperature. In this embodiment, the operation related to stopping heating also includes the operation in FIG.

[0138] FIG. 17 is a flowchart showing the operation of the high-frequency heating cooker 1.

[0139] The heating execution unit 101 determines whether or not to start deep-fry cooking (step SE1). The determination in step SE1 is made in the same manner as the determination in step SA1.

[0140] If the heating execution unit 101 determines not to start deep-fry cooking (step SE1: NO), it performs the determination of step SE1 again. On the other hand, if the heating execution unit 101 determines that deep-fry cooking has started (step SE1: YES), it determines whether five minutes have passed since the start of deep-fry cooking (step SE2). Five minutes is an example of a "predetermined time."

[0141] If heating execution unit 101 determines that five minutes have not elapsed since the start of deep-fry cooking (step SE2: NO), it performs the determination of step SE2 again. On the other hand, if heating execution unit 101 determines that five minutes have elapsed since the start of deep-fry cooking (step SE2: YES), it determines whether the temperature detected by temperature sensor 47 has risen by 70°C or more during the five minutes since the start of deep-fry cooking (step SE3). Note that this value of 70°C is merely an example.

[0142] If the heating execution unit 101 determines that the temperature has not risen by 70° C. or more (step SE3: NO), it turns off the output of the high-frequency heating unit 6 (step SE4).

[0143] Returning to the explanation of step SE3, if heating execution unit 101 determines that the temperature has risen by 70°C or more (step SE3: YES), it determines whether the temperature detected by temperature sensor 47 has risen by 130°C or more within 5 minutes since the start of deep-fry cooking (step SE5). Note that this value of 130°C is merely an example.

[0144] If the heating execution unit 101 determines that the temperature has risen by 130°C or more (step SE5: YES), it reduces the output of the high-frequency heating unit 6 below the output before 5 minutes had elapsed since the start of deep-fry cooking (step SE6).

[0145] On the other hand, if the heating execution unit 101 determines that the temperature has not risen by 130° C. or more (step SE5: NO), the heating execution unit 101 ends this operation.

[0146] [1-2-7. High oil level notification] In the present embodiment, there are cases in which a notification is given that the amount of oil is too much in the deep frying mode. The operation in this case will be described next.

[0147] The display control unit 103 determines whether five minutes have passed since the start of deep-fry cooking. If the display control unit 103 determines that five minutes have passed since the start of deep-fry cooking, it determines whether the temperature detected by the temperature sensor 47 exceeded 70°C during the five minutes since the start of deep-fry cooking. Note that this value of five minutes is merely an example. If the display control unit 103 determines that the temperature detected by the temperature sensor 47 did not exceed 70°C during the five minutes since the start of deep-fry cooking, it notifies the user via the operation panel 5 that there is a large amount of oil in the container. Note that this notification may be made in the form of at least one of a sound, a display, and a light such as an LED. 70°C is an example of a "fifth temperature."

[0148] [1-2-8. Notifications related to containers] In this embodiment, if the container containing the oil is not recommended for deep-frying, a notification to that effect is provided. The operation related to this notification will be described below.

[0149] The display control unit 103 calculates the temperature rise for each infrared element of the temperature sensor 47 since the start of deep-fry cooking, and if the number of infrared elements that detect a temperature rise equal to or greater than a predetermined value is equal to or less than a first predetermined number, the display control unit 103 notifies the user by displaying information that the container placed in the heating chamber 4 is not recommended for deep-fry cooking. This notification may be in the form of at least one of a sound, a display, or a light such as an LED. Furthermore, if the number of infrared elements that detect a temperature rise equal to or greater than the predetermined value is equal to or greater than a second predetermined number that is greater than the first predetermined number, the display control unit 103 notifies the user by displaying information that the container placed in the heating chamber 4 is not recommended for deep-fry cooking. This notification may be in the form of at least one of a sound, a display, or a light such as an LED.

[0150] FIG. 18 is a diagram schematically showing temperature detection by the temperature sensor 47. As shown in FIG. As described above, the temperature sensor 47 of this embodiment divides the entire bottom surface 44 into 64 areas BA and detects the temperature for each of the divided areas BA. In Figure 18, the areas BA where a temperature increase of a predetermined value or more occurred are shown with a matte finish. In other words, Figure 18 shows that 18 infrared elements detected a temperature increase of a predetermined value or more.

[0151] For example, if the first predetermined number is 19, in the example of Fig. 18, it will be reported that the container placed in the heating chamber 4 is a non-recommended container. Also, if the second predetermined number is 17, in the example of Fig. 18, it will be reported that the container placed in the heating chamber 4 is a non-recommended container.

[0152] On the other hand, if the first predetermined number is 17 and the second predetermined number is 24, for example, in the example of FIG. 18, the above-described notification regarding the container is not made.

[0153] [1-2-9. Notification after frying is complete] In this embodiment, after the deep-frying process is completed, the heating execution unit 101 drives the fan 821 of the convection heater unit 82 and the cooling fan 9. During this driving, the display control unit 103 notifies the user via the operation panel 5 that the object to be heated is hot. This notification may be made in the form of at least one of a sound, a display, and a light such as an LED.

[0154] More specifically, after the end of deep-frying, when at least one of the fan 821 of the convection heater unit 82 and the cooling fan 9 is driven, the display control unit 103 determines whether the temperature detected by the temperature sensor 47 is 50°C or higher. If the display control unit 103 determines that the temperature detected by the temperature sensor 47 is 50°C or higher, it notifies the operation panel 5 that the object to be heated is hot. This notification may be in the form of at least one of a sound, a display, and a light such as an LED. On the other hand, if the display control unit 103 determines that the temperature detected by the temperature sensor 47 is not 50°C or higher, it does not notify the operation panel 5 that the object to be heated is hot. 50°C is an example of a "predetermined temperature."

[0155] Although the fan 821 of the convection heater unit 82 and the cooling fan 9 are configured to be driven automatically after deep-frying is completed, they may also be configured to be started manually by the user after deep-frying is completed.

[0156] [1-2-10. Actions according to the type of fried food] In this embodiment, after the user selects deep-frying as the type of cooking on the operation panel 5, the user can select the item to be deep-fried on the operation panel 5. The high-frequency heating cooker 1 corrects the pre-heating end temperature, corrects the heating time when re-heating, and notifies the user that re-heating is in progress, depending on the type of item to be deep-fried.

[0157] For example, if the user selects "frozen pork cutlet" as the item to be deep-fried on the operation panel 5, the heating execution unit 101 corrects the preheating end temperature to a temperature 1.2 times the preheating end temperature input by the user. Note that this value of 1.2 is merely an example. Also, for example, if the user selects "frozen pork cutlet" as an item to be deep-fried on the operation panel 5, the heating execution unit 101 corrects the heating time for reheating to 0.75 times the heating time input by the user. Note that this value of 0.75 is merely an example. Furthermore, for example, when the user selects "frozen pork cutlet" as an item to be deep-fried on the operation panel 5, the display control unit 103 notifies the user via the operation panel 5 to turn the food over at a predetermined timing after reheating. This notification may be in the form of at least one of a sound, a display, and a light such as an LED.

[0158] For example, if the user selects "frozen fried shrimp" as an item to be deep-fried on the operation panel 5, the heating execution unit 101 corrects the preheating end temperature to a temperature 1.2 times the preheating end temperature input by the user. Note that this value of 1.2 is merely an example. Also, for example, if the user selects "frozen fried shrimp" as an item to be deep-fried on the operation panel 5, the heating execution unit 101 corrects the heating time for reheating to 0.65 times the heating time input by the user. Note that this value of 0.65 is merely an example. Also, for example, when the user selects "frozen fried shrimp" as an item to be deep-fried using the operation panel 5, the display control unit 103 does not notify the user to turn the food over.

[0159] For example, if the user selects "frozen crab cream croquette" as the item to be deep-fried on the operation panel 5, the heating execution unit 101 corrects the preheating end temperature to a temperature 1.1 times the preheating end temperature input by the user. Note that this value of 1.1 is merely an example. Also, for example, if the user selects "frozen crab cream croquette" as an item to be deep-fried on the operation panel 5, the heating execution unit 101 corrects the heating time for reheating to 0.80 times the heating time input by the user. Note that this value of 0.80 is merely an example. Furthermore, for example, when the user selects "frozen cream crab croquette" as an item to be deep-fried using the operation panel 5, the display control unit 103 notifies the user via the operation panel 5 to turn the food over at a predetermined timing after reheating. This notification may be in the form of at least one of a sound, a display, and a light such as an LED.

[0160] For example, if the user selects "frozen potatoes" as an item to be deep-fried on the operation panel 5, the heating execution unit 101 corrects the preheating end temperature to a temperature 1.2 times the preheating end temperature input by the user. Note that this value of 1.2 is merely an example. Also, for example, if the user selects "frozen potatoes" as an item to be deep-fried on the operation panel 5, the heating execution unit 101 corrects the heating time for reheating to a heating time that is 0.80 times the heating time input by the user. Note that this value of 0.80 is merely an example. Also, for example, when the user selects "frozen potatoes" as an item to be deep-fried using the operation panel 5, the display control unit 103 does not notify the user to turn the ingredients over.

[0161] [1-2-11. Notifications in normal mode] The operation of the high frequency heating cooker 1 in the deep frying mode has been described above. However, there may be cases where a user mistakenly operates the high frequency heating cooker 1 in the normal mode to cook deep-fried food. Therefore, in the normal mode, the high frequency heating cooker 1 performs the operations of Fig. 19 and Fig. 20 in parallel.

[0162] FIG. 19 is a flowchart showing the operation of the high-frequency heating cooker 1. At the start of the operation of the flowchart in FIG. 19, the user has selected normal cooking on the operation panel 5 as the type of cooking.

[0163] The heating execution unit 101 determines whether or not to start normal cooking (step SF1). If the reception unit 102 receives an instruction to start cooking, the heating execution unit 101 makes an affirmative determination in step SF1.

[0164] If the heating execution unit 101 determines not to start normal cooking (step SF1: NO), it performs the determination of step SF1 again. On the other hand, if the heating execution unit 101 determines to start normal cooking (step SF1: YES), it determines whether one minute has passed since the start of normal cooking (step SF2). Note that this value of one minute is merely an example.

[0165] If one minute has passed since the start of normal cooking (step SF2: YES), the heating execution unit 101 determines whether the temperature detected by the temperature sensor 47 has risen by 40°C or more during the one minute since the start of normal cooking (step SF3). Note that the value of four minutes is merely an example.

[0166] If the temperature rises by 40° C. or more (step SF3: YES), the heating execution unit 101 ends this operation. Note that this value of 40° C. is merely an example.

[0167] On the other hand, if the heating execution unit 101 determines that the temperature has not risen by 40°C or more (step SF3: NO), it determines whether 6 minutes have passed since the start of normal cooking (step SF4). Note that 6 minutes is merely an example.

[0168] If the heating execution unit 101 determines that six minutes have passed since the start of normal cooking (step SF4: YES), it determines whether the temperature detected by the temperature sensor 47 has risen by 80°C or more during the six minutes since the start of normal cooking (step SF5). Note that the value of 80°C is merely an example.

[0169] If the heating execution unit 101 determines that the temperature has not risen by 80° C. or more (step SF5: NO), the heating execution unit 101 ends this operation.

[0170] On the other hand, if it is determined that the temperature has risen by 80°C or more (step SF5: YES), the heating execution unit 101 determines whether the temperature detected by the temperature sensor 47 six minutes after the start of normal cooking is 105°C or more (step SF6). That is, in step SF6, it is determined whether the temperature detected by the temperature sensor 47 six minutes after the start of normal cooking is 105°C or more. Note that this value of 105°C is merely an example.

[0171] If the heating execution unit 101 determines that the temperature is less than 105° C. (step SF6: NO), it ends this operation.

[0172] On the other hand, if the heating execution unit 101 determines that the temperature is 105° C. or higher (step SF6: NO), it determines whether the temperature detected by the temperature sensor 47 has reached the first temperature (step SF7).

[0173] When the heating execution unit 101 determines that the temperature detected by the temperature sensor 47 has not reached the first temperature (step SF7: NO), the heating execution unit 101 performs the determination of step SF7 again. On the other hand, when the heating execution unit 101 determines that the temperature detected by the temperature sensor 47 has reached the first temperature (step SF7: YES), the heating execution unit 101 turns off the output of the high-frequency heating cooker 1 (step SF8).

[0174] Next, the display control unit 103 notifies the user that the selected type of cooking is incorrect via the operation panel 5 (step SF9). This notification may be made in the form of at least one of a sound, a display, and a light such as an LED.

[0175] FIG. 20 is a flowchart showing the operation of the high-frequency heating cooker 1. At the start of the operation of the flowchart in FIG. 20, the user has selected normal cooking on the operation panel 5 as the type of cooking.

[0176] The heating execution unit 101 determines whether or not to start normal cooking (step SG1). The determination in step SG1 is made in the same manner as in step SF1.

[0177] When it is determined that normal cooking should be started (step SG1: YES), the heating execution unit 101 determines whether the temperature detected by the temperature sensor 47 has reached 100° C. (step SG2).

[0178] If the heating execution unit 101 determines that the temperature detected by the temperature sensor 47 has not reached 100°C (step SG2: NO), it performs the determination of step SG2 again. On the other hand, if the heating execution unit 101 determines that the temperature detected by the temperature sensor 47 has reached 100°C (step SG2: YES), it determines whether the temperature detected by the temperature sensor 47 has reached 110°C (step SG3).

[0179] If the heating execution unit 101 determines that the temperature detected by the temperature sensor 47 has not reached 110°C (step SG3: NO), it performs the determination of step SG3 again. On the other hand, if the heating execution unit 101 determines that the temperature detected by the temperature sensor 47 has reached 110°C (step SG3: YES), it determines whether the time it took for the temperature detected by the temperature sensor 47 to fall from 100°C to 110°C is within one minute (step SG4). The temperature range of 100°C to 110°C is an example of a "predetermined temperature range." One minute is an example of a "predetermined time."

[0180] If heating execution unit 101 determines that the time taken for the temperature detected by temperature sensor 47 to drop from 100° C. to 110° C. is not within one minute (step SG4: NO), this operation ends.

[0181] If the heating execution unit 101 determines that the time it took for the temperature detected by the temperature sensor 47 to rise from 100°C to 110°C is within one minute (step SG4: YES), it determines whether the temperature detected by the temperature sensor 47 has reached the first temperature (step SG5).

[0182] When the heating execution unit 101 determines that the temperature detected by the temperature sensor 47 has not reached the first temperature (step SG5: NO), the heating execution unit 101 performs the determination of step SG5 again. On the other hand, when the heating execution unit 101 determines that the temperature detected by the temperature sensor 47 has reached the first temperature (step SG5: YES), the heating execution unit 101 turns off the output of the high-frequency heating cooker 1 (step SG6).

[0183] Next, the display control section 103 notifies the user via the operation panel 5 that the selected type of cooking is incorrect (step SG7).

[0184] The flowchart shown in FIG. 20 may incorporate the following process. That is, in the flowchart shown in FIG. 20, when the temperature detected by the temperature sensor 47 reaches 120°C, the heating execution unit 101 may turn off the output of the high-frequency heating unit 6, and the processor 100 may issue a notification that deep-frying is being performed in normal mode. The notification may be audio, visual, or optical. Also, in the flowchart shown in FIG. 20, when the temperature detected by the temperature sensor 47 reaches 120°C, the processor 100 may issue the above notification and automatically switch the operation mode from normal mode to deep-frying mode. When making this switch, the processor 100 does not have to turn off the output of the high-frequency heating unit 6. The value of 120°C explained in this paragraph is merely an example.

[0185] [1-3. Effects, etc.] As described above, the high-frequency heating cooker 1 includes the high-frequency heating unit 6 that uses high-frequency waves to heat an object to be heated placed in the heating chamber 4, the temperature sensor 47 that detects the temperature of the object to be heated in the heating chamber 4, the open / close detection unit 10 that detects the open / close state of the door 3 that can open and close the opening 4A of the heating chamber 4, the operation panel 5 that receives an operation from a user to select the type of cooking, and the control unit 11 that controls the high-frequency heating unit 6 to heat the object to be heated. When the operation panel 5 receives an operation to select deep-fry cooking and heating by the high-frequency heating unit 6 is started, the control unit 11 notifies the operation panel 5 to open the door 3 when the temperature inside the heating chamber 4 detected by the temperature sensor 47 reaches a preheating end temperature, and when the open / close detection unit 10 detects that the front door 3 is closed after the door 3 is opened, the control unit 11 resumes heating by the high-frequency heating unit 6 or prompts the operation panel 5 to resume heating.

[0186] The control method of the high frequency heating cooker 1 is as follows: when an operation to select deep frying is accepted and heating by the high frequency heating unit 6 is started, when the temperature inside the heating chamber 4 reaches the preheating end temperature, a notification is issued to open the door 3, and when the door 3 changes from an open state to a closed state, heating by the high frequency heating unit 6 is resumed, or the operation panel 5 is prompted to resume heating.

[0187] When the operation panel 5 receives an operation to select deep frying cooking and heating is started by the high frequency heating unit 6, the control program 111 causes the processor 100 of the high frequency heating cooker 1 to notify the user to open the door 3 when the temperature inside the heating chamber 4 reaches the preheating end temperature, and when the door 3 changes from an open state to a closed state, the control program 111 resumes heating by the high frequency heating unit 6 or prompts the user to resume heating via the operation panel 5.

[0188] According to the high frequency cooking device 1, the control method for the high frequency cooking device 1, and the control program 111, the user can add ingredients to the oil heated by the notification, and the added ingredients can be fried in the oil by reheating, so deep-frying can be performed without a mechanism for moving ingredients to the heated oil. Thus, deep-frying can be performed with a simple configuration.

[0189] The control unit 11 controls the high frequency heating unit 6 from the time when the operation panel 5 issues a notification until the open / close detection unit 10 detects that the door 3 is open.

[0190] This prevents the temperature of the heated oil from dropping from the time the alarm is issued until the door 3 is opened. This prevents the food ingredients from being fried at an appropriate temperature due to the oil temperature being low when the door 3 is opened and the food ingredients are added.

[0191] When the open / close detector 10 detects that the door 3 is open, the controller 11 issues a notification via the operation panel 5 to prompt the user to put ingredients into a container containing oil housed in the heating chamber 4.

[0192] This allows the user to know when to add ingredients, increasing the likelihood that the user will be able to add ingredients to the oil at the appropriate time.

[0193] The operation panel 5 can accept an operation to input a heating time. When the operation panel 5 accepts an operation to set a heating time, the control unit 11 ends the deep-frying process in the same time as or shorter than the set heating time.

[0194] This increases the possibility that deep-fry cooking can be completed in a time shorter than the time set by the user, thereby providing a highly convenient high-frequency heating cooker 1 that can shorten cooking time.

[0195] Operation panel 5 can accept an operation to select an item for deep-frying. When the operation panel accepts an operation to select an item, control unit 11 notifies operation panel 5 to reopen door 3 and change the state of the ingredients placed in the oil according to the type of the selected item after restarting heating by high-frequency heating unit 6.

[0196] Depending on the item being deep-fried, it may be desirable to change the state of the ingredients while deep-frying. Therefore, by informing the user through the operation panel 5 to reopen the door 3 and change the state of the ingredients placed in the oil depending on the item being deep-fried, the user can know when to change the state of the ingredients. This increases the likelihood that items for which it is desirable to change the state of the ingredients will be cooked properly.

[0197] High frequency cooking device 1 includes convection heater unit 82 and cooling fan 9 that cools the inside of heating chamber 4. After deep-frying is completed, control unit 11 drives fan 821 of convection heater unit 82 and cooling fan 9.

[0198] According to this, after deep-fry cooking is completed, the temperature inside the heating chamber 4, including the temperature of the object to be heated, can be quickly reduced. Therefore, the period during which the object to be heated cannot be removed after deep-fry cooking can be shortened, and therefore the period during which the high-frequency heating cooker 1 cannot be used after cooking starts can be shortened.

[0199] When operation panel 5 accepts an operation to select normal cooking, which heats at an upper limit temperature that is lower than deep-fry cooking, and heating by high-frequency heating unit 6 is started, and the temperature detected by temperature sensor 47 reaches a first temperature, control unit 11 turns off the output of high-frequency heating unit 6 or reduces the output of high-frequency heating unit 6. When operation panel 5 accepts an operation to select deep-fry cooking and heating by high-frequency heating unit 6 is started, and the temperature detected by temperature sensor 47 reaches a second temperature that is higher than the first temperature, control unit 11 turns off the output of high-frequency heating unit 6 or reduces the output of high-frequency heating unit 6.

[0200] The control method of the high frequency cooking device 1 accepts an operation to select normal cooking and starts heating by the high frequency heating unit 6, and when the temperature inside the heating chamber 4 reaches a first temperature, turns off the output of the high frequency heating unit 6 or reduces the output of the high frequency heating unit 6. Furthermore, the control method of the high frequency cooking device 1 accepts an operation to select deep frying cooking and starts heating by the high frequency heating unit 6, and when the temperature inside the heating chamber 4 reaches a second temperature higher than the first temperature, turns off the output of the high frequency heating unit 6 or reduces the output of the high frequency heating unit 6.

[0201] When the processor 100 of the high frequency cooking device 1 receives an operation to select normal cooking and starts heating by the high frequency heating unit 6, the control program 111 turns off the output of the high frequency heating unit 6 or reduces the output of the high frequency heating unit 6 when the temperature inside the heating chamber 4 reaches a first temperature. Furthermore, when the processor 100 of the high frequency cooking device 1 receives an operation to select deep frying cooking and starts heating by the high frequency heating unit 6, the control program 111 turns off the output of the high frequency heating unit 6 or reduces the output of the high frequency heating unit 6 when the temperature inside the heating chamber 4 reaches a second temperature that is higher than the first temperature.

[0202] According to the high frequency cooking device 1, the control method for the high frequency cooking device 1, and the control program 111, when deep-frying food, ingredients can be heated at a higher temperature than when cooking other than deep-frying food. Also, when deep-frying food, the output of the high frequency heating unit 6 can be turned off or reduced as the temperature inside the heating chamber 4 rises. Therefore, deep-frying food can be cooked safely and appropriately.

[0203] When the temperature detected by the temperature sensor 47 reaches a second temperature, the control unit 11 reduces the output of the high-frequency heating unit 6, and when the temperature detected by the temperature sensor 47 reaches a third temperature that is higher than the second temperature, the control unit 11 turns off the output of the high-frequency heating unit 6.

[0204] According to this, even if the temperature inside the heating chamber 4 rises despite the output of the high frequency heating unit 6 being reduced, the output of the high frequency heating unit 6 can be turned off at the third temperature. Therefore, even with the configuration in which the output of the high frequency heating unit 6 is reduced at the second temperature, deep-frying can be performed safely.

[0205] When the operation panel 5 accepts an operation to select deep-fry cooking and heating is started by the high-frequency heating unit 6, if the temperature detected by the temperature sensor 47 does not rise by 80°C or more within 6 minutes after heating starts, or if the temperature detected by the temperature sensor 47 after 6 minutes has passed is less than 105°C, which is lower than the first temperature, the control unit 11 will reduce or turn off the output of the high-frequency heating unit 6 and notify the user that the type of cooking selected is incorrect.

[0206] According to this, since the temperature rise detected by the temperature sensor 47 does not correspond to an increase in the temperature of oil, deep-frying can be terminated, and deep-frying can be terminated when there is a possibility that deep-frying is not being performed. Therefore, it is possible to provide a high-frequency heating cooker 1 that is capable of deep-frying while ensuring the safety of the user. Furthermore, since the user is notified that the selected type of cooking is incorrect, the user can easily take action when the selected type of cooking is incorrect.

[0207] When the operation panel 5 accepts an operation to select deep-fry cooking and heating is started by the high-frequency heating unit 6, the control unit 11 reduces or turns off the output of the high-frequency heating unit 6 if the temperature detected by the temperature sensor 47 rises by 40°C or more within one minute after heating starts and the temperature detected by the temperature sensor 47 reaches the first temperature.

[0208] According to this, deep-frying can be terminated if the temperature rise detected by temperature sensor 47 does not correspond to a rise in the temperature of oil, and deep-frying can be terminated when there is a possibility that deep-frying is not being performed. Therefore, it is possible to provide a high-frequency heating cooker 1 that can perform deep-frying while ensuring the safety of the user.

[0209] When the operation panel 5 accepts an operation to select deep-fry cooking and heating is started by the high-frequency heating unit 6, the control unit 11 will notify the operation panel 5 that there is a large amount of oil if the temperature detected by the temperature sensor does not exceed 70°C within 5 minutes after heating starts.

[0210] This allows the user to know that there is a large amount of oil, thereby reducing the possibility that a large amount of oil will result in a longer preheating time, and as a result, the user will not be properly notified that preheating is complete.

[0211] When the operation panel 5 accepts an operation to select normal cooking and heating by the high-frequency heating unit 6 is started, if the temperature detected by the temperature sensor 47 is 80°C or higher within 6 minutes after the start of heating, and if the temperature detected by the temperature sensor 47 after 6 minutes has elapsed is 105°C or higher, and if the temperature detected by the temperature sensor 47 does not rise above 40°C within 1 minute after the start of heating, the control unit 11 turns off the output of the high-frequency heating unit 6 when the temperature detected by the temperature sensor 47 reaches the first temperature, and issues a notification that deep-frying is being performed in normal mode, or does not turn off the output of the high-frequency heating unit 6, and issues the notification and changes the operating mode from normal mode to deep-frying mode.

[0212] According to this, if there is a possibility that the user is deep-frying due to heating in normal cooking, the output of the high-frequency heating unit 6 is turned off and a notification is given that deep-frying is being performed in normal mode, allowing the user to easily take action if the type of cooking selected is incorrect. Also, if there is a possibility that the user is deep-frying due to heating in normal cooking, the notification is given and the mode is switched to deep-frying mode, allowing the user to understand the reason for the switch to deep-frying mode and saving the user the trouble of having to redo the cooking, improving convenience.

[0213] When the operation panel 5 accepts an operation to select normal cooking and heating by the high frequency heating unit 6 is started, if the time it takes for the temperature detected by the temperature sensor 47 to pass through 100°C to 110°C is less than one minute, the control unit 11 turns off the output of the high frequency heating unit 6 after the temperature detected by the temperature sensor 47 reaches the first temperature, and issues a notification that deep frying is being performed in normal mode, or does not turn off the output of the high frequency heating unit 6, and issues the notification and changes the operating mode from normal mode to deep frying mode.

[0214] According to this, if there is a possibility that the user is deep-frying food due to heating for normal cooking, the output of the high-frequency heating unit 6 is turned off and a notification is given that deep-frying food is being cooked in normal mode, which prevents the user from accidentally adding ingredients during normal cooking heating and causing the deep-frying food to be cooked improperly, and allows the user to understand that the output of the high-frequency heating unit 6 has been turned off. Furthermore, if there is a possibility that the user is deep-frying food due to heating for normal cooking, the notification is given and the mode switches to deep-frying mode, which allows the user to understand the reason for the switch to deep-frying mode and saves the user the trouble of having to redo the cooking, thereby improving convenience.

[0215] The control unit 11 turns off the output of the high frequency heating unit 6 and notifies the user through the operation panel 5 that the selected type of cooking is incorrect.

[0216] This allows the user to know that the type of cooking selected on the operation panel 5 is incorrect, and therefore supports the user so that deep-fry cooking can be performed even if the type of cooking selected is incorrect.

[0217] Temperature sensor 47 is a sensor that divides the placement area in heating chamber 4 where the object to be heated is placed into a plurality of areas BA and detects the temperature of each of the divided areas BA. If the container placed in heating chamber 4 is not recommended for deep-frying based on the detection result of temperature sensor 47, control unit 11 notifies this fact via operation panel 5.

[0218] This allows the user to know which containers are recommended for deep-frying, thereby assisting the user in deep-frying using the containers recommended for deep-frying.

[0219] After the deep-frying process is completed, the control unit 11 drives the fan 821 and the cooling fan 9 of the convection heater unit 82, and after driving the fan 821 and the cooling fan 9, the control unit 11 notifies the user via the operation panel 5 that the heated object is hot while the temperature detected by the temperature sensor 47 is 50°C or higher.

[0220] This allows the user to know that the object to be heated is hot after deep-frying is completed, which prevents the user from accidentally touching the hot object, thereby ensuring the safety of the user even after deep-frying is completed.

[0221] (Embodiment 2) Next, a second embodiment will be described. [2-1.Configuration] The configuration of the high frequency heating cooker 1 in the second embodiment is the same as that in the first embodiment.

[0222] [2-2. Operation] In the second embodiment, convection heater unit 82 is driven in the deep frying mode, as compared with the first embodiment. Note that in the second embodiment, convection heater unit 82 may also be driven in the normal mode.

[0223] The following describes the operation of the second embodiment that differs from that of the first embodiment.

[0224] [2-2-1. Overall flow of frying mode] First, with reference to FIG. 21, the overall flow of the deep frying mode in the second embodiment will be described.

[0225] FIG. 21 is a graph showing the relationship between the change in oil temperature over time, the output of the high-frequency heating section 6, and the output of the convection heater unit 82. FIG. 21 shows charts CH11, CH12, and CH13. Chart CH11 is a chart showing the change in oil temperature over time during deep-frying, with the vertical axis representing the oil temperature and the horizontal axis representing the time elapsed since the start of deep-frying. Chart CH12 is a timing chart showing the on / off of the output of the high-frequency heating unit 6 during deep-frying. Chart CH13 is a timing chart showing the on / off of the output of the convection heater unit 82 during deep-frying.

[0226] When deep-frying begins, the heating execution unit 101 turns on the output of the high-frequency heating unit 6 but does not turn on the output of the convection heater unit 82. Note that the heating execution unit 101 may also turn on the output of the convection heater unit 82 when deep-frying begins. As the output of the high-frequency heating unit 6 is turned on, the temperature of the oil in the container in the heating chamber 4 rises. FIG. 21 shows a case where the temperature detected by the temperature sensor 47 reaches the preheating end temperature at timing T15 after deep-frying begins. When the temperature detected by the temperature sensor 47 reaches the preheating end temperature, the heating execution unit 101 turns on the output of the convection heater unit 82, as shown at timing T15 in FIG. 21. Note that the output of the convection heater unit 82 does not have to be turned on at timing T15.

[0227] When the temperature detected by temperature sensor 47 reaches the preheating end temperature, heating execution unit 101 drives convection heater unit 82 at an output of 700 W, half the maximum output that convection heater unit 82 can output, or an output similar to 700 W or half the maximum output. Note that an output similar to 700 W is an output within a predetermined range from 700 W. Also, an output similar to half the maximum output is an output within a predetermined range from half the maximum output.

[0228] 21, the timing when the door 3 changes from the closed state to the open state is timing T16. Therefore, in the example of Fig. 21, the heating execution unit 101 turns off the output of the high-frequency heating unit 6 and also turns off the output of the convection heater unit 82 at timing T16.

[0229] In Figure 21, the timing when ingredients are added to the oil is T17. When ingredients are added to preheated oil, the heat of the oil is absorbed by the ingredients. Therefore, in the example of Figure 21, the oil temperature drops after T17.

[0230] In Fig. 21, the timing at which heating is resumed is timing T18. Therefore, in the example of Fig. 21, at timing T18, the heating execution unit 101 turns on the output of the high-frequency heating unit 6 again and also turns on the output of the convection heater unit 82 again. Note that the output of the convection heater unit 82 does not necessarily have to be turned on at timing T18.

[0231] When the heating execution unit 101 turns on the output of the convection heater unit 82 again, it drives the convection heater unit 82 at an output of 700 W, or half the maximum output that the convection heater unit 82 can output, or an output similar to 700 W or half the maximum output.

[0232] 21, the timing at which the temperature detected by temperature sensor 47 increases after heating is resumed is timing T19. In this embodiment, when the temperature detected by temperature sensor 47 increases after heating is resumed, heating execution unit 101 may turn off the output of high-frequency heating unit 6 and increase the output of convection heater unit 82.

[0233] After heating is resumed, if the temperature detected by temperature sensor 47 increases, heating execution unit 101 drives convection heater unit 82 at an output of 1380 W, or the maximum output that convection heater unit 82 can output, or an output similar to 1380 W or the maximum output. Note that an output similar to 1380 W is an output within a predetermined range from 1380 W. Also, an output similar to the maximum output is an output within a predetermined range from the maximum output.

[0234] In Fig. 21, the timing at which deep-frying ends is timing T20. Therefore, in the example of Fig. 21, heating execution unit 101 turns off the output of high-frequency heating unit 6 and also turns off the output of convection heater unit 82 at timing T20, thereby ending deep-frying.

[0235] Furthermore, after preheating is complete, if the open / close detection unit 10 detects that the door 3 has changed from an open state to a closed state, the display control unit 104 may prompt the user to resume heating via the operation panel 5. The prompt to resume is not limited to a display, but may also be a sound or a light such as an LED.

[0236] [2-2-2. Operation related to the second temperature] In the first embodiment, after the start of deep-fry cooking, when the temperature detected by temperature sensor 47 reaches the second temperature, the output of high-frequency heating unit 6 is turned off. In the second embodiment, after the start of deep-fry cooking, when the temperature detected by temperature sensor 47 reaches the second temperature, heating execution unit 101 turns off the output of heater 823 of convection heater unit 82 as well as the output of high-frequency heating unit 6. At this time, heating execution unit 101 may continue to drive fan 821 or may stop fan 821.

[0237] [2-2-3. Operations related to the second and third temperatures] In the first embodiment, the output of high frequency heating unit 6 may be reduced when the temperature detected by temperature sensor 47 reaches the second temperature after the start of deep frying. In this configuration, in embodiment 2, after the start of deep-frying, when the temperature detected by temperature sensor 47 reaches the second temperature, heating execution unit 101 also reduces the output of first heater 823 and second heater 824 of convection heater unit 82 below the output before the second temperature was reached.

[0238] Furthermore, in the first embodiment, when the temperature detected by temperature sensor 47 reaches the third temperature after the start of deep-fry cooking, the output of high-frequency heating unit 6 may be turned off. In this configuration, in the second embodiment, after the start of deep-frying, when the temperature detected by temperature sensor 47 reaches the third temperature, heating execution unit 101 also turns off the output of heater 823 of convection heater unit 82. At this time, heating execution unit 101 may continue to drive fan 821, or may stop fan 821.

[0239] [2-3. Effects, etc.] According to the second embodiment, the same effects as those of the first embodiment can be achieved. Furthermore, the second embodiment has the following advantages due to the following configuration.

[0240] The high frequency heating cooker 1 includes a convection heater unit 82. When the open / close detection unit 10 detects that the door 3 has changed from an open state to a closed state, the control unit 11 starts heating by the convection heater unit 82, or prompts the operation panel 5 to resume heating.

[0241] According to this, since the object to be heated can be heated by air, it is possible to effectively heat oil, which is less likely to absorb high frequency waves than food, and therefore food can be fried while the oil is being heated effectively.

[0242] During heating by the convection heater unit 82, the control unit 11 turns off the output of the high frequency heating unit 6, or reduces the output of the high frequency heating unit 6 to a level lower than when heating by the convection heater unit 82 is not being performed.

[0243] This allows the output of the high frequency heating unit 6 to be turned off or reduced, thereby preventing an increase in power consumption of the high frequency heating cooker 1 and allowing ingredients to be fried while effectively heating the oil.

[0244] When the temperature detected by the temperature sensor 47 reaches a second temperature, the control unit 11 stops driving the convection heater unit 82, and when the temperature detected by the temperature sensor 47 reaches a third temperature, the control unit 11 turns off the output of the convection heater unit 82.

[0245] According to this, even if the temperature inside heating chamber 4 rises despite the output of convection heater unit 82 being reduced, the output of convection heater unit 82 can be turned off at the third temperature. Therefore, even with a configuration in which the output of convection heater unit 82 is reduced at the second temperature, deep-frying can be done safely.

[0246] (Embodiment 3) Next, a third embodiment will be described. [3-1.Configuration] Regarding the configuration of each part of the high frequency heating cooker 1 in the third embodiment, detailed description of the same configuration as the configuration of each part of the high frequency heating cooker 1 in the first and second embodiments will be omitted as appropriate.

[0247] FIG. 22 is a block diagram showing the configuration of a control system of the high-frequency heating cooker 1 according to the third embodiment. In the third embodiment, the high frequency cooking appliance 1 is different from the first embodiment in that it includes a reflected wave sensor 13. The reflected wave sensor 13 is also called a directional coupler and is a sensor that detects high frequency waves passing through the waveguide 63. The reflected wave sensor 13 detects incident waves that pass through the waveguide 63 and enter the heating chamber 4, and also detects reflected waves that enter the waveguide 63 from the heating chamber 4, thereby detecting the degree of the amount of reflected waves relative to the amount of incident waves within the heating chamber 4 (hereinafter referred to as "reflectance"). The reflected wave sensor 13 is connected to the control unit 11 and outputs the detection result to the control unit 11. In this embodiment, the reflected wave sensor 13 is an example of a "sensor." Also, in this embodiment, the reflectance is an example of a "condition inside the heating chamber."

[0248] [3-2. Operation] The following describes the operation of the third embodiment, with respect to differences from the first and second embodiments.

[0249] [3-2-1. Overall flow of frying mode] First, the overall flow in the frying mode will be described.

[0250] In the above-described first embodiment, the output of the high-frequency heating unit 6 is controlled in accordance with the temperature detected by the temperature sensor 47. In the above-described second embodiment, the output of the high-frequency heating unit 6 and the convection heater unit 82 is controlled in accordance with the temperature detected by the temperature sensor 47. On the other hand, in the third embodiment, the output of the high-frequency heating unit 6 is controlled in accordance with the reflectance detected by the reflected wave sensor 13, or the outputs of the high-frequency heating unit 6 and the convection heater unit 82 are controlled.

[0251] FIG. 23 is a graph showing the relationship between the change in reflectance over time, the output of the high-frequency heating section 6, and the output of the convection heater unit 82. 23 shows Chart CH14. Chart CH14 is a chart showing the change in reflectance over time during deep-fry cooking, with the vertical axis representing reflectance and the horizontal axis representing the time elapsed since the start of deep-fry cooking.

[0252] In the present embodiment, in the deep frying mode, heating may be performed by only the high frequency heating unit 6 as in embodiment 1, or heating may be performed by both the high frequency heating unit 6 and the convection heater unit 82 as in embodiment 2. In the description of the deep frying mode in this embodiment using Fig. 23, a case where heating is performed by both the high frequency heating unit 6 and the convection heater unit 82 as in embodiment 2 will be exemplified.

[0253] When deep-frying begins, heating execution unit 101 turns on the output of high-frequency heating unit 6 but does not turn on the output of convection heater unit 82. As the output of high-frequency heating unit 6 is turned on, the temperature of the oil in the container in heating chamber 4 rises. FIG. 23 shows a case where the reflectance reaches the preheating end reflectance at timing T21 after deep-frying begins. The preheating end reflectance is the reflectance at which preheating ends, and is, for example, a reflectance in the range of 70% to 95%. When the reflectance reaches the preheating end reflectance, heating execution unit 101 turns on the output of convection heater unit 82 at timing T21. In this embodiment, the reflectance at the end of preheating is an example of a "predetermined state."

[0254] In Fig. 23, the timing when the door 3 changes from the closed state to the open state is timing T22. Therefore, in the example of Fig. 23, the heating execution unit 101 turns off the output of the high-frequency heating unit 6 and also turns off the output of the convection heater unit 82 at timing T22.

[0255] In Fig. 23, the timing at which heating is resumed is timing T23. Therefore, in the example of Fig. 23, the heating execution unit 101 turns on the output of the high-frequency heating unit 6 again and turns on the output of the convection heater unit 82 again at timing T23.

[0256] 23, the timing at which the reflectance increases after heating is resumed is timing T24. When the reflectance increases after heating is resumed, the heating execution unit 101 turns off the output of the high-frequency heating unit 6 and increases the output of the convection heater unit 82.

[0257] In Fig. 23, the timing at which deep-frying ends is timing T25. Therefore, in the example of Fig. 23, heating execution unit 101 turns off the output of high-frequency heating unit 6 and also turns off the output of convection heater unit 82 at timing T25, thereby ending deep-frying.

[0258] In the explanation of Figure 23, a configuration has been given in which the output of the high-frequency heating section 6 and the convection heater unit 82 is controlled according to the reflectivity, but in the case of a configuration in which the frying mode is heated only by the high-frequency heating section 6, the output of the high-frequency heating section 6 is controlled according to the reflectivity in the same manner as in embodiment 1.

[0259] [3-2-2. Various corrections related to reheating] In the first and second embodiments, the heating time during reheating and the output of the high frequency heating unit 6 during reheating are corrected based on the temperature detected by the temperature sensor 47. In the third embodiment, the heating time during reheating and the output of the high-frequency heating unit 6 during reheating are corrected based on the reflectance.

[0260] More specifically, the heating execution unit 101 calculates the amount of decrease in reflectance during the period from the end of preheating until the door 3 changes from the open state to the closed state. If the calculated decrease in reflectance is in the range of 10% to 30%, the heating execution unit 101 corrects the output of the high-frequency heating unit 6 during reheating so that it is higher than the standard output during reheating. Note that the value of 10% to 30% is merely an example. Alternatively, if the calculated decrease in reflectance is in the range of 10% to 30%, the heating execution unit 101 corrects the heating time during reheating so that it is shorter than the heating time set when deep-frying cooking began. Alternatively, if the calculated decrease in reflectivity is in the range of 10% to 30%, the heating execution unit 101 corrects the output of the high-frequency heating unit 6 during reheating to be higher than the standard output during reheating, and corrects the heating time during reheating to be shorter than the heating time set at the start of deep-fry cooking.

[0261] More specifically, if the calculated decrease in reflectance is 40% or more, the heating execution unit 101 corrects the output of the high-frequency heating unit 6 during reheating so that it is lower than the standard output during reheating. Note that the value of 40% is merely an example. Alternatively, if the calculated decrease in reflectance is 40% or more, the heating execution unit 101 corrects the heating time for reheating to be longer than the heating time set when deep-frying cooking was started. Alternatively, if the calculated decrease in reflectivity is 40% or more, the heating execution unit 101 corrects the output of the high-frequency heating unit 6 during reheating to be lower than the standard output during reheating, and corrects the heating time during reheating to be longer than the heating time set when starting deep-fry cooking.

[0262] [3-2-3. Operation related to stopping heating] The operation described with reference to FIG. 17 is configured to turn off the output of the high-frequency heating unit 6 or reduce the output of the high-frequency heating unit 6 according to the temperature detected by the temperature sensor 47. In this embodiment, the operation shown in FIG. 17 is performed based on the reflectance instead of the temperature detected by the temperature sensor 47.

[0263] That is, if the reflectance does not increase by 8% or more within five minutes after the start of deep-fry cooking, or if the reflectance at the start of cooking is 95% or more, the heating execution unit 101 turns off the output of the high-frequency heating unit 6, or reduces the output of the high-frequency heating unit 6 below the output before five minutes have elapsed since the start of deep-fry cooking. Note that this value of 8% is merely an example. Then, the display control unit 103 notifies the user that the amount of oil in the container is low via the operation panel 5. Note that this notification may be in the form of at least one of a sound, a display, and a light such as an LED.

[0264] [3-3. Effects, etc.] According to the third embodiment, the same effects as those of the first embodiment can be achieved.

[0265] (Fourth embodiment) Next, a fourth embodiment will be described. [4-1.Configuration] The configuration of the high frequency heating cooker 1 in the fourth embodiment is the same as that in the first embodiment.

[0266] [4-2. Operation] The following describes the operations of the fourth embodiment that differ from those of the first embodiment.

[0267] [4-2-1. Determining the maximum preheating time and the estimated time for preheating completion] In embodiment 1, as explained in item number 1-2-3, the maximum preheating time and the predicted preheating completion time are determined based on the oil temperature at the start of deep-frying and the amount of increase in oil temperature up to 5 minutes after the start of deep-frying. In the fourth embodiment, the maximum preheating time and the predicted preheating completion time are determined based on the change in oil temperature over time.

[0268] This will be explained in detail using Figure 24. FIG. 24 is a chart CH15 showing the change in oil temperature over time depending on the oil amount. In Chart CH15, the vertical axis is set to oil temperature and the horizontal axis is set to the elapsed time since the start of deep frying.

[0269] FIG. 24 shows three graphs: GF1, GF2, and GF3. Graph GF1 shows the change in the amount of oil over time when the amount of oil in the container is "low." Graph GF2 shows the change in oil volume over time when the container contains a "medium" amount of oil, which means there is more oil than when the container contains a "low" amount of oil. Graph GF3 shows the change in oil volume over time when the oil volume in the container is "high." "High" oil volume means that the oil volume is greater than "medium."

[0270] When deep-frying cooking begins, heating execution unit 101 monitors the change over time in temperature detected by temperature sensor 47 and determines which of graphs GF1, GF2, or GF3 the monitored change over time most closely resembles. This determination is made, for example, by averaging the differences. Memory 110 stores the predicted preheating completion time and maximum preheating time for each of graphs GF1, GF2, and GF3, and heating execution unit 101 determines the predicted preheating completion time and maximum preheating time by reading from memory 110 the predicted preheating completion time and maximum preheating time corresponding to the graph whose monitored change over time most closely resembles.

[0271] [4-2-2. Operation related to the output of the high frequency heating unit] In the first embodiment, as explained in item number 1-2-6, if the temperature does not rise by 70°C or more within 5 minutes after the start of deep-fry cooking, the output of the high-frequency heating unit 6 is turned off. Also, in the first embodiment, as explained in item number 1-2-6, if the temperature rises by 130°C or more within 5 minutes after the start of deep-fry cooking, the output of the high-frequency heating unit 6 is reduced.

[0272] In embodiment 4, when deep-frying cooking begins, the heating execution unit 101 monitors the change over time in the temperature detected by the temperature sensor 47, and if the temperature at a certain time is lower than a predetermined range from graph GF3, it determines that there is no oil in the container or that there is a large amount of oil, and reduces the output of the high-frequency heating unit 6.

[0273] In addition, in embodiment 4, when deep-frying cooking begins, the heating execution unit 101 monitors the change in temperature detected by the temperature sensor 47 over time, and if the temperature at a certain time is higher than a predetermined range from graph GF1, it determines that the amount of oil is small and reduces the output of the high-frequency heating unit 6 after cooking begins.

[0274] [4-2-3. Determination of the second and third temperatures] In the first embodiment, the second temperature and the third temperature are determined based on the oil temperature at the start of deep-fry cooking and the amount of rise in the oil temperature.

[0275] In the fourth embodiment, when deep-fry cooking starts, the change over time of the temperature detected by temperature sensor 47 is monitored, and it is determined which of graphs GF1, GF2, or GF3 the monitored change over time is closest to. Memory 110 stores the second temperature and the third temperature for each of graphs GF1, GF2, and GF3, and heating execution unit 101 determines the second temperature and the third temperature by reading from memory 110 the second temperature and the third temperature corresponding to the graph whose monitored change over time is closest to the second temperature and the third temperature.

[0276] [4-2-4. Operation related to stopping heating at the first temperature] In the first embodiment, as explained in item number 1-2-5, the output of the high frequency heating unit 6 is turned off or reduced at the first temperature depending on the degree of rise in temperature detected by the temperature sensor 47.

[0277] In embodiment 4, when deep-frying cooking begins, the heating execution unit 101 monitors the change over time in temperature detected by the temperature sensor 47, and if the change over time in the monitored temperature falls outside the temperature range of graphs GF1 and GF3, the output of the high-frequency heating unit 6 is turned off or reduced.

[0278] [4-2-5. Operations related to normal mode] In embodiment 1, as explained in item number: 1-2-11, the output of the high-frequency heating unit 6 is turned off or reduced at the first temperature depending on the degree of temperature rise detected by the temperature sensor 47 and the time it takes to pass through a specified temperature range.

[0279] In the fourth embodiment, when normal cooking starts, the heating execution unit 101 monitors the change over time in the temperature detected by the temperature sensor 47, and if the monitored change over time in the temperature is outside the temperature ranges of the graphs GF1 and GF3, and the temperature detected by the temperature sensor 47 reaches the first temperature, the heating execution unit 101 turns off or reduces the output of the high-frequency heating unit 6. In addition, when the output is turned off, the display control unit 103 displays a message that the selected type of cooking is incorrect.

[0280] [4-3. Effects, etc.] According to the fourth embodiment, the same effects as those of the first embodiment can be achieved.

[0281] (Other embodiments) As described above, the above-mentioned first, second, third, and fourth embodiments have been described as examples disclosed in the present application. However, the technology in the present disclosure is not limited to these, and can be applied to embodiments in which modifications, substitutions, additions, omissions, etc. are made. Furthermore, it is also possible to combine the components described in the above-mentioned first, second, third, and fourth embodiments to create new embodiments. Therefore, other embodiments will be described below as examples.

[0282] In the above-described embodiment, the output of the high frequency heating unit 6 is not turned off after the operation panel 5 issues a notification to open the door 3 until the door 3 is opened. In another embodiment, the heating execution unit 101 may stop or reduce control of the high frequency heating unit 6 when the operation panel 5 issues a notification to open the door 3. That is, in this other embodiment, the heating execution unit 101 may stop the output of the high frequency heating unit 6 when the operation panel 5 issues a notification to open the door 3. This makes it possible to reduce the power consumption of the high frequency heating cooker 1 during deep-frying compared to the above-described embodiment.

[0283] In another embodiment, when deep-frying is selected on the operation panel 5, the control unit 11 may notify the user to place a container containing oil on a sheet made of ferrite and heat it. This sheet is an example of a "heating element." The notification may be in the form of a display or sound output. This increases the possibility that the container containing oil can be heated from below during heating by the high-frequency heating unit 6, thereby increasing the possibility that the oil in the container can be heated effectively. Furthermore, the "heating element" is not limited to a sheet, and may be a container made of ferrite.

[0284] In other embodiments related to the first embodiment, the high frequency cooking device 1 does not have to include the convection heater unit 82. Also, in other embodiments related to the first embodiment, the high frequency cooking device 1 may include the convection heater unit 82 but not have the cooling fan 9. Also, in other embodiments related to the second embodiment, the high frequency cooking device 1 may include the convection heater unit 82 but not have the cooling fan 9. Also, the high frequency cooking device 1 does not have to include the planar heater unit 81.

[0285] In the above-described embodiment, specific numerical values ​​are shown for the "first temperature," "second temperature," "third temperature," "fourth temperature," "fifth temperature," "first time," "second time," "first degree," "second degree," "predetermined temperature," "predetermined time," and "predetermined temperature range." However, these specific numerical values ​​shown in the above-described embodiment are merely examples, and the "first temperature," "second temperature," "third temperature," "fourth temperature," "fifth temperature," "first time," "second time," "first degree," "second degree," "predetermined temperature," "predetermined time," and "predetermined temperature range" are not limited to the above-described specific numerical values.

[0286] In the above-described embodiment, an IR sensor having multiple infrared elements is exemplified as temperature sensor 47. In other embodiments, temperature sensor 47 may be an IR sensor having a single infrared element or a thermistor. When temperature sensor 47 is a thermistor, it can detect the temperature even when smoke containing water vapor is generated in the heating chamber, allowing for safer and more appropriate deep-frying.

[0287] In the above-described embodiment, an example of a notification to change the state of ingredients is a notification to flip ingredients over, but the notification to change the state of ingredients may also be a notification to stir ingredients or a notification to change the position of ingredients.

[0288] To eliminate the concern of oil splashing into heating chamber 4, some users may put a lid on the container containing the oil. When the user puts the lid on, the temperature detected by temperature sensor 47 changes suddenly. Therefore, in order to issue an error notification and stop heating when the lid is placed on the container, heating execution unit 101 ends deep-frying if the temperature detected by temperature sensor 47 changes suddenly (for example, if the temperature drops by 150°C or more per unit time). At the same time, at least one of display control unit 103 and sound output control unit 104 issues an error notification.

[0289] In the above-described embodiment, the "operation unit" and the "alert unit" are the same device, but the "operation unit" and the "alert unit" may be configured as different devices. For example, the "operation unit" may be configured as a switch or button, and the "alert unit" may be configured as a display, speaker, buzzer, etc.

[0290] The control program 111 of the above-described embodiment can be non-temporarily recorded on a recording medium that is readable by the processor 100, for example. The recording medium can be a magnetic or optical recording medium or a semiconductor memory device. Alternatively, the control program 111 can be stored in a server device or the like, and the high-frequency cooking appliance 1 can download the control program 111 from the server device to realize the above-described operation.

[0291] The processor 100 may be configured with a single processor or multiple processors. The processor 100 may be hardware programmed to implement corresponding functional units. That is, the processor 100 may be configured with, for example, an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array).

[0292] The configuration of the high-frequency cooking device 1 shown in Figures 1 and 22 is an example, and the specific implementation form is not particularly limited. In other words, it is not necessarily required to implement hardware corresponding to each unit individually, and it is also possible to implement a configuration in which one processor executes a program to realize the functions of each unit. Furthermore, some of the functions realized by software in the above-mentioned embodiment may be implemented by hardware, or some of the functions realized by hardware may be implemented by software.

[0293] The step units of the operations shown in Figures 5, 7, 8, 14, 17, 19, and 20 are divided according to the main processing content to make the operations easier to understand, and the operation is not limited by the way the processing units are divided or the names of the processing units. The operations may be divided into more step units depending on the processing content. Furthermore, one step unit may be divided so that it includes more processing. Furthermore, the order of the steps may be changed as appropriate within the scope of the present disclosure.

[0294] It should be noted that the above-described embodiments are intended to illustrate the technology of the present disclosure, and various modifications, substitutions, additions, omissions, etc. may be made within the scope of the claims or their equivalents.

[0295] (Addendum) The above description of the embodiments discloses the following techniques.

[0296] (Technology 1) A high frequency heating cooker comprising: a high frequency heating unit that uses high frequency waves to heat an object to be heated that is placed in a heating chamber; a temperature sensor that detects the temperature inside the heating chamber; an operation unit that receives an operation from a user to select a type of cooking; and a control unit that controls the high frequency heating unit to heat the object to be heated, wherein when the operation unit receives an operation to select a second cooking method that heats the object at an upper limit temperature that is lower than a first cooking method that involves deep-frying in oil and heating by the high frequency heating unit is started, the control unit turns off the output of the high frequency heating unit or reduces the output of the high frequency heating unit when the temperature detected by the temperature sensor reaches a first temperature, and when the operation unit receives an operation to select the first cooking method and heating by the high frequency heating unit is started, the control unit turns off the output of the high frequency heating unit or reduces the output of the high frequency heating unit when the temperature detected by the temperature sensor reaches a second temperature that is higher than the first temperature. This allows cooking ingredients in deep-frying to be heated at a higher temperature than in cooking other than deep-frying. Furthermore, even in deep-frying, the output of the high-frequency heating unit can be turned off or reduced as the temperature inside the heating chamber rises. Therefore, deep-frying can be performed safely and appropriately.

[0297] (Technology 2) The high-frequency heating cooker according to Technology 1, wherein the control unit reduces the output of the high-frequency heating unit when the temperature detected by the temperature sensor reaches the second temperature, and turns off the output of the high-frequency heating unit when the temperature detected by the temperature sensor reaches a third temperature higher than the second temperature. According to this, even if the temperature inside the heating chamber rises despite the output of the high frequency heating unit being reduced, the output of the high frequency heating unit can be turned off at the third temperature. Therefore, even with the configuration in which the output of the high frequency heating unit is reduced at the second temperature, deep frying can be done safely.

[0298] (Technology 3) The high frequency heating cooker according to Technology 1 or Technology 2, further comprising a convection heater unit, wherein the control unit reduces the output of the convection heater when the temperature detected by the temperature sensor reaches the second temperature, and turns off the output of the convection heater unit when the temperature detected by the temperature sensor reaches the third temperature. This allows the output of the convection heater unit to be turned off at the third temperature even if the temperature inside the heating chamber rises despite the output of the convection heater unit being reduced. Therefore, deep-frying can be done safely even with a configuration in which the output of the convection heater unit is reduced at the second temperature.

[0299] (Technology 4) The high frequency heating cooker according to any one of Technology 1 to Technology 3, wherein when the operation unit accepts an operation to select the first cooking method and starts heating by the high frequency heating unit, the control unit performs at least one of the following when the temperature detected by the temperature sensor does not rise by a first degree or more within a first time period after the start of heating, or when the temperature detected by the temperature sensor after the first time period has elapsed is less than a fourth temperature lower than the first temperature, and when the temperature detected by the temperature sensor reaches the first temperature: reducing or turning off the output of the high frequency heating unit, and notifying that the selected type of cooking is incorrect. According to this, since the temperature rise detected by the temperature sensor does not correspond to an increase in the oil temperature, deep-frying can be terminated when there is a possibility that deep-frying is not being performed. Therefore, a high-frequency heating cooker capable of deep-frying while ensuring the safety of the user can be provided. Furthermore, since the user is notified that the selected type of cooking is incorrect, the user can easily take action when the selected type of cooking is incorrect.

[0300] (Technology 5) When the operation unit accepts an operation to select the first cooking and starts heating by the high-frequency heating unit, the control unit reduces or turns off the output of the high-frequency heating unit when the temperature detected by the temperature sensor reaches the first temperature if the temperature detected by the temperature sensor rises by a second degree or more, the second degree being smaller than the first degree, within a second time period that is shorter than the first time period after the start of heating. This is a high-frequency heating cooker described in Technology 4. According to this, the same effect as that of the high frequency heating cooker described in the fourth aspect can be achieved.

[0301] (Technology 6) A high-frequency heating cooker according to any one of Technology 1 to Technology 5, which is provided with an alarm unit, and when the operation unit receives an operation to select the first cooking and starts heating by the high-frequency heating unit, the control unit causes the alarm unit to notify that there is a large amount of oil if the temperature detected by the temperature sensor does not exceed a fifth temperature lower than the first temperature within a predetermined time after the start of heating. This allows the user to know that there is a large amount of oil, thereby reducing the possibility that a large amount of oil will result in a longer preheating time, and as a result, the user will not be properly notified that preheating is complete.

[0302] (Technology 7) When the operation unit accepts an operation to select the second cooking method and starts heating by the high-frequency heating unit, the control unit turns off the output of the high-frequency heating unit and issues a notification that the first cooking is being performed when the temperature detected by the temperature sensor reaches the first temperature in the following cases: the temperature detected by the temperature sensor rises by a first degree or more within a first time period after the start of heating; the temperature detected by the temperature sensor when the first time period has elapsed is equal to or higher than a fourth temperature lower than the first temperature; and the temperature detected by the temperature sensor does not rise by more than a second degree within a second time period after the start of heating that is shorter than the first time period; or the control unit issues the notification without turning off the output of the high-frequency heating unit and switches the heating mode from a normal mode to a deep-frying mode; the normal mode is a mode for performing the second cooking method; and the deep-frying mode is a mode for performing the first cooking method. According to this, if the heating for the second cooking method indicates that the user is cooking something deep-fried in oil, the output of the high-frequency heating unit is turned off and a notification is issued that the first cooking method is being performed, allowing the user to easily take action if the type of cooking selected is incorrect. Also, if the heating for normal cooking method indicates that the user is cooking something deep-fried, the notification is issued and the device switches to deep-frying mode, allowing the user to understand the reason for the switch to deep-frying mode and saving the user the trouble of having to redo the cooking method, improving convenience.

[0303] (Technology 8) A high frequency heating cooker according to any one of Technologies 1 to 7, wherein when the operation unit accepts an operation to select the second cooking method and starts heating by the high frequency heating unit, the control unit turns off the output of the high frequency heating unit and notifies the user that the first cooking is being performed after the temperature detected by the temperature sensor reaches the first temperature if the time it takes for the temperature detected by the temperature sensor to pass through a predetermined temperature range is less than or equal to a predetermined time, or makes the notification without turning off the output of the high frequency heating unit and switches the heating mode from normal mode to deep frying mode. This provides the same effects as the high frequency cooking device described in the seventh aspect.

[0304] (Technology 9) A high frequency heating cooker according to Technology 7 or Technology 8, which is provided with an alarm unit, and the control unit turns off the output of the high frequency heating unit and notifies the user by the alarm unit that the selected type of cooking is incorrect. This allows the user to know that the type of cooking selected is incorrect, so that the optimal cooking can be provided even if any cooking is selected, and the safety of the user can be ensured.

[0305] (Technology 10) A high frequency heating cooker according to any one of Technology 1 to Technology 9, further comprising an alarm unit, wherein the temperature sensor is a sensor that divides a placement area in the heating chamber where the heated object is placed into a plurality of areas and detects the temperature of each of the divided areas, and the control unit, based on the detection result of the temperature sensor, issues an alarm to that effect if the container placed in the heating chamber is a container that is not recommended for the first cooking. This allows the user to know which containers are recommended for deep-frying, thereby assisting the user in deep-frying using the containers recommended for deep-frying.

[0306] (Technology 11) A high frequency heating cooker according to any one of Technology 1 to Technology 10, comprising a convection heater, a cooling fan that cools the inside of the heating chamber, and an alarm unit, wherein the control unit drives the air blower fan and the cooling fan of the convection heater after a first cooking is completed, and after driving the air blower fan and the cooling fan, the alarm unit notifies that the heated object is hot while the temperature detected by the temperature sensor is equal to or higher than a predetermined temperature. This allows the user to know that the heated object is hot after deep-frying is completed, which prevents the user from accidentally touching the hot heated object, thereby ensuring the safety of the user even after deep-frying is completed.

[0307] (Technology 12) The high frequency heating cooker according to Technology 1, wherein the temperature sensor is a thermistor. According to this, if the temperature sensor is a thermistor, the temperature can be detected even if smoke containing water vapor is generated in the heating chamber. Therefore, even in the case of deep-frying, the output of the high-frequency heating unit can be appropriately turned off or appropriately reduced as the temperature in the heating chamber rises. Therefore, deep-frying can be performed more safely and appropriately.

[0308] (Technology 13) A control method for a high frequency heating cooker equipped with a high frequency heating unit that heats an object to be heated contained in a heating chamber by high frequency waves, wherein when an operation to select a second cooking method that heats an object to be heated at an upper limit temperature lower than a first cooking method that involves deep-frying in oil is accepted and heating by the high frequency heating unit is started, the output of the high frequency heating unit is turned off or the output of the high frequency heating unit is reduced when the temperature inside the heating chamber reaches a first temperature, and when an operation to select the first cooking is accepted and heating by the high frequency heating unit is started and the temperature inside the heating chamber reaches a second temperature that is higher than the first temperature, the output of the high frequency heating unit is turned off or the output of the high frequency heating unit is reduced. This provides the same effects as those of the high frequency cooking device described in the first technique.

[0309] (Technology 14) A program for a processor of a high frequency heating cooker equipped with a high frequency heating unit that heats an object to be heated contained in a heating chamber using high frequency waves, which receives an operation to select a second cooking method that heats an object to be heated at an upper limit temperature lower than a first cooking method that involves deep-frying in oil, and when heating by the high frequency heating unit is started, turns off the output of the high frequency heating unit or reduces the output of the high frequency heating unit when the temperature inside the heating chamber reaches a first temperature, and when heating by the high frequency heating unit is started, when an operation to select the first cooking is started, turns off the output of the high frequency heating unit or reduces the output of the high frequency heating unit when the temperature inside the heating chamber reaches a second temperature that is higher than the first temperature. This provides the same effects as those of the high frequency cooking device described in the first technique. [Industrial Applicability]

[0310] As described above, the high frequency cooking device, the control method for the high frequency cooking device, and the program according to the present invention can be used for frying food materials in oil in a heating chamber. [Explanation of symbols]

[0311] 1 High frequency heating cooker 2 Cabinets 3 doors 4 Heating chamber 4A opening 5 Operation panel (operation section, notification section) 6 High frequency heating section 7 Heating dish 8 Heater heating section 9 Cooling fan 10 Open / close detector 11 Control section 12 Sound output section 13 Reflected wave sensor (sensor) 47 Temperature sensor (sensor) 61 High frequency generator 62 Antenna 63 Waveguide 81 Planar heater unit 82 Convection heater unit 100 processors 101 Heating Execution Unit 102 Reception 103 Display control unit 104 Sound output control unit 110 memory 111 Control Program (Program) 821 Fans 822 heater BA area

Claims

1. a high frequency heating unit that heats an object to be heated housed in the heating chamber by high frequency; a temperature sensor for detecting the temperature inside the heating chamber; an operation unit that accepts an operation to select a cooking type from a user; A control unit that controls the high-frequency heating unit to heat the object to be heated, The control unit When the operation unit receives an operation to select a second cooking method in which heating is performed at an upper limit temperature lower than that of the first cooking method in which frying is performed in oil, and heating by the high frequency heating unit is started, When the temperature detected by the temperature sensor reaches a first temperature, the output of the high-frequency heating unit is turned off or the output of the high-frequency heating unit is reduced; When the operation unit receives an operation to select the first cooking method and starts heating by the high-frequency heating unit, When the temperature detected by the temperature sensor reaches a second temperature higher than the first temperature, the output of the high-frequency heating unit is turned off or the output of the high-frequency heating unit is reduced. High frequency heating cooker.

2. The control unit When the temperature detected by the temperature sensor reaches the second temperature, the output of the high-frequency heating unit is reduced, When the temperature detected by the temperature sensor reaches a third temperature higher than the second temperature, the output of the high-frequency heating unit is turned off. The high frequency cooking device according to claim 1.

3. Equipped with a convection heater unit, The control unit When the temperature detected by the temperature sensor reaches the second temperature, the output of the convection heater is reduced, when the temperature detected by the temperature sensor reaches the third temperature, the output of the convection heater unit is turned off. The high frequency cooking device according to claim 1 or 2.

4. When the operation unit receives an operation to select the first cooking method and starts heating by the high-frequency heating unit, The control unit If the temperature detected by the temperature sensor does not rise by a first degree or more within a first time period after the start of heating, or if the temperature detected by the temperature sensor after the first time period has elapsed is less than a fourth temperature that is lower than the first temperature, and the temperature detected by the temperature sensor reaches the first temperature, at least one of the following is performed: reducing or turning off the output of the high-frequency heating unit, and notifying the user that the selected type of cooking is incorrect. The high frequency cooking device according to claim 1 or 2.

5. When the operation unit receives an operation to select the first cooking method and starts heating by the high-frequency heating unit, The control unit If the temperature detected by the temperature sensor rises by a second degree less than the first degree within a second time period that is shorter than the first time period after the start of heating, When the temperature detected by the temperature sensor reaches the first temperature, the output of the high-frequency heating unit is reduced or turned off. The high frequency cooking device according to claim 4.

6. Equipped with a notification unit, When the operation unit receives an operation to select the first cooking method and starts heating by the high-frequency heating unit, The control unit If the temperature detected by the temperature sensor does not exceed a fifth temperature that is lower than the first temperature within a predetermined time after starting heating, the notification unit notifies that the amount of oil is large. The high frequency cooking device according to claim 1 or 2.

7. When the operation unit receives an operation to select the second cooking method and starts heating by the high-frequency heating unit, The control unit the temperature detected by the temperature sensor rises by a first degree or more within a first time period after the start of heating, and the temperature detected by the temperature sensor after the first time period has elapsed is equal to or higher than a fourth temperature that is lower than the first temperature, and the temperature detected by the temperature sensor does not rise by more than a second degree within a second time period after the start of heating that is shorter than the first time period, When the temperature detected by the temperature sensor reaches the first temperature, the output of the high frequency heating unit is turned off and a notification is given that the first cooking is being performed, or the output of the high frequency heating unit is not turned off and the notification is given and the heating mode is switched from a normal mode to a deep frying mode, The normal mode is a mode for performing the second cooking method, and the frying mode is a mode for performing the first cooking method. The high frequency cooking device according to claim 1.

8. When the operation unit receives an operation to select the second cooking method and starts heating by the high-frequency heating unit, The control unit When the time it takes for the temperature detected by the temperature sensor to pass through a predetermined temperature range is equal to or shorter than a predetermined time, After the temperature detected by the temperature sensor reaches the first temperature, the output of the high frequency heating unit is turned off and a notification is given that the first cooking is being performed, or the output of the high frequency heating unit is not turned off, the notification is given, and the heating mode is switched from the normal mode to the deep frying mode. The high frequency cooking device according to claim 1.

9. Equipped with a notification unit, The control unit turns off the output of the high-frequency heating unit and notifies the user by the notification unit that the selected type of cooking is incorrect. The high frequency cooking device according to claim 7 or 8.

10. Equipped with a notification unit, the temperature sensor is a sensor that divides a placement area in the heating chamber where the object to be heated is placed into a plurality of areas and detects the temperature of each of the divided areas, When the container placed in the heating chamber is a container that is not recommended for the first cooking based on the detection result of the temperature sensor, the control unit notifies the fact through the notification unit. The high frequency cooking device according to claim 1.

11. The heating device includes a convection heater, a cooling fan that cools the inside of the heating chamber, and an alarm unit, The control unit After the first cooking is completed, the blower fan of the convection heater and the cooling fan are driven, After the blower fan and the cooling fan are driven, the notification unit notifies that the object to be heated is hot while the temperature detected by the temperature sensor is equal to or higher than a predetermined temperature. The high frequency cooking device according to claim 1.

12. The temperature sensor is a thermistor. The high frequency cooking device according to claim 1.

13. A control method for a high frequency heating cooker having a high frequency heating unit that heats an object to be heated housed in a heating chamber by high frequency waves, When an operation to select a second cooking method in which heating is performed at an upper limit temperature lower than that of the first cooking method in which frying is performed in oil is accepted and heating by the high frequency heating unit is started, When the temperature inside the heating chamber reaches a first temperature, the output of the high-frequency heating unit is turned off or the output of the high-frequency heating unit is reduced, When the operation of selecting the first cooking method is accepted and heating by the high frequency heating unit is started, When the temperature inside the heating chamber reaches a second temperature higher than the first temperature, the output of the high-frequency heating unit is turned off or the output of the high-frequency heating unit is reduced. A method for controlling a high frequency cooking device.

14. A processor of a high frequency heating cooker having a high frequency heating unit that heats an object to be heated housed in a heating chamber by high frequency waves, When an operation to select a second cooking method in which heating is performed at an upper limit temperature lower than that of the first cooking method in which frying is performed in oil is accepted and heating by the high frequency heating unit is started, When the temperature inside the heating chamber reaches a first temperature, the output of the high-frequency heating unit is turned off or the output of the high-frequency heating unit is reduced, When the operation of selecting the first cooking method is accepted and heating by the high frequency heating unit is started, When the temperature inside the heating chamber reaches a second temperature higher than the first temperature, the output of the high-frequency heating unit is turned off or the output of the high-frequency heating unit is reduced. program.

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