Heating device, control method for heating device, and program

Abstract

The present disclosure provides a heating device capable of carrying out heating that is suited to the object to be heated.　The heating device according to the present disclosure comprises a microwave heating unit that heats an object to be heated accommodated in a heating chamber using microwaves, a heater heating unit that heats the object to be heated using a heater, and a heating implementation unit that controls the microwave heating unit and the heater heating unit to perform a heating procedure for heating the object to be heated. If the object to be heated is a first food product, the heating implementation unit performs the heating procedure such that heating using the heater heating unit accounts for not less than half of the procedure time in the first half of the heating procedure.

Description

Heating device, heating device control method, and program

[0001] The present disclosure relates to a heating device, a control method for a heating device, and a program.

[0002] Patent Document 1 discloses a cooking device that simultaneously performs a heater heating operation for heating an object to be heated with a heater and a microwave heating operation for heating the object to be heated with microwaves.

[0003] JP 2007-303740 A

[0004] The present disclosure provides a heating device that can perform heating suitable for an object to be heated, a method for controlling the heating device, and a program.

[0005] The heating device of the present disclosure comprises a microwave heating unit that heats an object to be heated contained in a heating chamber using microwaves, a heater heating unit that heats the object to be heated using a heater, and a heating execution unit that controls the microwave heating unit and the heater heating unit to perform a heating process of heating the object to be heated, and when the object to be heated is a first food product, the heating execution unit performs the heating process so that heating by the heater heating unit takes up more than half of the process time in the first half of the heating process.

[0006] In addition, the heating device of the present disclosure includes a microwave heating unit that heats an object to be heated contained in a heating chamber using microwaves, a heater heating unit that heats the object to be heated using a heater, and a heating execution unit that controls the microwave heating unit and the heater heating unit to perform a heating process of heating the object to be heated, and when the object to be heated is a second food, the heating execution unit performs the heating process in the first half of the heating process so that the heating time by the microwave heating unit that is performed in the heating process occupies more than half of the heating time.

[0007] In addition, the control method of the heating device disclosed herein is such that, when the object to be heated contained in the heating chamber is a first food product, in the first half of the heating process in which the object to be heated is heated using microwaves and a heater, the heating process is performed so that heating by the heater occupies more than half of the process time.

[0008] In addition, in the control method of the heating device disclosed herein, when the heated object contained in the heating chamber is a second food product, the heating process is performed in a manner that the first half of the heating process in which the heated object is heated using microwaves and a heater occupies more than half of the execution time of the microwave heating performed in the heating process.

[0009] In addition, the program of the present disclosure causes a processor of a heating device having a microwave heating unit that heats an object to be heated contained in a heating chamber using microwaves and a heater heating unit that heats the object to be heated using a heater to function as a heating execution unit that controls the microwave heating unit and the heater heating unit to perform a heating process of heating the object to be heated, and when the object to be heated is a first food item, the heating execution unit performs the heating process so that heating by the heater heating unit takes up more than half of the process time in the first half of the heating process.

[0010] The program disclosed herein also includes a processor for a heating device including a microwave heating unit that heats an object to be heated housed in a heating chamber using microwaves and a heater heating unit that heats the object using a heater. The processor controls the microwave heating unit and the heater heating unit to function as a heating execution unit that performs a heating process to heat the object to be heated. When the object to be heated is a second food, the heating execution unit performs the heating process so that the first half of the heating process occupies more than half of the heating time by the microwave heating unit that is performed in the heating process. This specification includes all of the contents of Japanese Patent Application No. 2023-191590, filed on November 9, 2023.

[0011] The heating device, the control method for the heating device, and the program according to the present disclosure can perform heating suitable for an object to be heated.

[0012] 1 is a perspective view of a heating device in embodiment 1; FIG. 2 is a perspective view of a heating device in embodiment 1 with the door removed; FIG. 3 is a perspective view of a heating device in embodiment 1 with the outer cover of a cabinet removed; FIG. 4 is a block diagram showing the configuration of a control system of the heating device in embodiment 1; FIG. 5 is a flowchart showing the operation of the heating device in embodiment 1; FIG. 6 is a diagram for explaining a first heating step in embodiment 1;

[0013] (Knowledge, etc., that Forms the Basis of the Present Disclosure) At the time the inventors conceived the present disclosure, there were cooking appliances that heated objects using a heater and microwaves. However, when heating with microwaves, the internal temperature of food rises, generating steam from within the food. The inventors discovered a problem: depending on the food, the steam generated by heating may cause the food to lose its shape, resulting in an unsatisfactory finished product. The inventors then created the subject matter of the present disclosure to solve this problem. Furthermore, while water-soluble odors can be removed from food using steam generated by heating, shortening the heating time to accommodate foods that tend to lose their shape upon heating may result in insufficient removal of the food's odor. The present disclosure therefore provides a heating device, a control method for the heating device, and a program that can provide heating appropriate for the object to be heated.

[0014] Hereinafter, embodiments will be described in detail with reference to the drawings. However, more detailed description than necessary may be omitted. For example, detailed description of already well-known matters or redundant description of substantially the same configuration may be omitted. Note that the accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

[0015] (Embodiment 1) [1-1. Configuration] [1-1-1. Configuration of heating device] Fig. 1 is a perspective view of heating device 1 in embodiment 1. Heating device 1 shown in Fig. 1 has a box-shaped cabinet 2. In Fig. 1 and Figs. 2 and 3 described below, arrows indicate directions corresponding to cabinet 2 when heating device 1 is installed. Symbol UP indicates upward, symbol R indicates rightward, and symbol FR indicates forward.

[0016] A door 3 is provided on the front of the cabinet 2 so as to be able to open and close. In the heating device 1, when the door 3 is opened, a heating chamber 4 provided inside the cabinet 2 is exposed. The heating chamber 4 contains an object to be heated by the heating device 1. The heating device 1 is a cooking appliance that cooks the object by heating the object contained in the heating chamber 4. In this embodiment, the object to be heated is food.

[0017] 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.

[0018] Fig. 2 is a perspective view of the heating device 1 with the door 3 removed. Fig. 2 is a perspective view of the heating device 1 with the outer cover of the cabinet 2 removed. The heating chamber 4 has a substantially rectangular parallelepiped shape and is made of a metal material and includes a right side surface 41, a left side surface 42, a top surface 43, a bottom surface 44, and a back surface 45.

[0019] A microwave heating unit 6 is installed below the heating chamber 4. The microwave heating unit 6 has a mechanism for heating an object to be heated housed in the heating chamber 4 with microwaves. This mechanism includes a magnetron 61 (see FIG. 4) that generates microwaves, an antenna 62 (see FIG. 4) that radiates the microwaves generated by the magnetron 61 into the heating chamber 4, and a waveguide 63 (see FIG. 4) that guides the microwaves generated by the magnetron 61 to the antenna 62. The mechanism for heating an object to be heated housed in the heating chamber 4 with microwaves may also be a semiconductor oscillation module. The bottom surface 44 of the heating chamber 4 is covered with a ceramic plate that is permeable to microwaves. In the heating chamber 4, the object to be heated is heated by microwaves that have passed through the bottom surface 44 from the microwave heating unit 6.

[0020] A pair of support members 46 for supporting the heating dish 7 are installed on the right side surface 41 and the left side surface 42 of the heating chamber 4. The pair of support members 46 are members that extend horizontally in the front-to-rear direction when installed. In this embodiment, a pair of upper support members 46A, a pair of middle support members 46B installed below the upper support members 46A, and a pair of lower support members 46C installed below the middle support members 46B are installed on the right side surface 41 and the left side surface 42.

[0021] The heating dish 7 is a container coated with a material that generates heat when irradiated with microwaves. The heating dish 7 is supported by one of a pair of upper support members 46A, a pair of middle support members 46B, and a pair of lower support members 46C, and is housed in the heating chamber 4 while dividing the heating chamber 4 in the vertical direction. Figure 2 illustrates an example in which two heating dishes 7 are supported by a pair of upper support members 46A and a pair of middle support members 46B, dividing the heating chamber 4 into three regions.

[0022] An outlet 47 is formed on the left side surface 42 of the heating chamber, through which steam heated to a high temperature by the steam heater is ejected. The water to be heated by the steam heater is stored in a tank provided outside the heating chamber 4 inside the cabinet 2. When high-temperature steam is ejected from the outlet 47, the object to be heated in the heating chamber 4 is heated by the steam.

[0023] A planar heater unit 81 that heats an 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.

[0024] The rear surface 45 of the heating chamber 4 is formed with a first air intake 45A and a second air intake 45B, each consisting of a plurality of punched holes. The rear surface of the heating chamber 4 is also formed with a first air outlet 45C, a second air outlet 45D, a third air outlet 45E, a fourth air outlet 45F, and a fifth air outlet 45G, each consisting of a plurality of punched holes. The first air outlet 45C is formed to extend in the left-right direction and is located 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 and is located 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.

[0025] A convection heater unit 82 is installed behind the back surface 45 of the heating chamber 4. In Fig. 2, the mechanisms included in the convection heater unit 82 are indicated by dotted lines. The convection heater unit 82 includes a first fan 821 that draws air through the first air intake port 45A, a second fan 822 that draws air through the second air intake port 45B, a first heater 823 that heats the air drawn in by the first fan 821 and the second fan 822, and a second heater 824 that heats the air drawn in by the first fan 821 and the second fan 822. The first fan 821 and the second fan 822 correspond to an example of an "air blower."

[0026] The first fan 821 is disposed opposite the first air intake port 45A and draws air from the heating chamber 4 through the first air intake port 45A. The air drawn in by the first fan 821 is blown out from each air outlet except for the fourth air outlet 45F. In particular, air heated by the first heater 823 is blown out from the first air outlet 45C, and air heated by the second heater 824 is blown out from the fifth air outlet 45G. The second fan 822 is disposed opposite the second air intake port 45B and draws air from the heating chamber 4 through the second air intake port 45B. The air drawn in by the second fan 822 is blown out from each air outlet except for the second air outlet 45D. In particular, air heated by the first heater 823 is blown out from the first air outlet 45C, and air heated by the second heater 824 is blown out from the fifth air outlet 45G.

[0027] In this way, the convection heater unit 82 circulates air in the heating chamber 4. Furthermore, the convection heater unit 82 heats the object to be heated by the air blown from each air outlet.

[0028] [1-1-2. Configuration of the control system of the heating device] Fig. 4 is a block diagram showing the configuration of the control system of the heating device 1. The heating device 1 includes a control device 10, an operation panel 5, and a heating unit 11. The control device 10 is a device that controls each part of the heating device 1. The operation panel 5 and the heating unit 11 are connected to the control device 10.

[0029] As described above, the operation panel 5 includes switches, a touch panel, etc. When a switch on the operation panel 5 is operated, the operation panel 5 outputs an operation signal to the control device 10. When the touch panel is touched, the operation panel 5 outputs an operation signal to the control device 10.

[0030] The heating unit 11 heats the heating chamber 4 under the control of the control device 10. The heating unit 11 includes a microwave heating unit 6, a heater heating unit 8, and a steam heating unit 9. The microwave heating unit 6 heats an object to be heated housed in the heating chamber 4 with microwaves. The microwave heating unit 6 includes mechanisms related to microwave heating, such as a magnetron 61, an antenna 62, and a waveguide 63. The heater heating unit 8 heats an object to be heated housed in the heating chamber 4 with a heater. The heater heating unit 8 includes mechanisms related to heater heating, such as a planar heater unit 81 and a convection heater unit 82. The steam heating unit 9 heats an object to be heated housed in the heating chamber 4 with steam. The steam heating unit 9 includes mechanisms related to steam heating, such as a tank to which water is supplied and a steam heater that heats the water in the tank to generate steam.

[0031] The control device 10 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 functions as a heating execution unit 101, a reception unit 102, and a determination unit 103 by reading and executing a control program 111 stored in the memory 110.

[0034] The heating execution unit 101 controls the heating unit 11 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 specified by the user. The heating modes include microwave mode, oven mode, steam mode, grill mode, and other modes. The microwave mode is a mode in which the object to be heated is heated by the microwave heating unit 6. The oven mode is a mode in which the object to be heated is heated by the heater heating unit 8. The steam mode is a mode in which the object to be heated is heated by the steam heating unit 9. The grill mode is a mode in which the object to be heated placed on the heating tray 7 is heated by the microwave heating unit 6 and the heater heating unit 8.

[0035] The receiving unit 102 receives instructions given by the user to the operation panel 5 based on operation signals output by the operation panel 5 .

[0036] When the heating mode specified by the user is the grill mode, determination unit 103 determines whether the object to be heated contained in heating chamber 4, i.e., the object to be heated placed on heating plate 7, is the first food item or the second food item. When reception unit 102 receives the first food item as the type of object to be heated, determination unit 103 determines that the object to be heated contained in heating chamber 4 is the first food item, and when reception unit 102 receives the second food item as the type of object to be heated, determination unit 103 determines that the object to be heated contained in heating chamber 4 is the second food item.

[0037] Here, the first food and the second food will be described. The first food is a food that easily loses its shape when heated. More specifically, the first food is a food whose shape can change significantly from before heating due to steam generated from the inside when heated. Even more specifically, the first food is a deep-fried food formed into a desired shape and covered with a batter. The first food is also a deep-fried food in which the ingredients inside are likely to spill out when the batter is torn. The first food is also a deep-fried food in which a single food is formed into a desired shape by means other than cutting and covered with a batter. Examples of the first food include croquettes, cream croquettes, and cheese fries. The first food is also relatively more likely to crumble than the second food, which will be described in detail later.

[0038] The second food is a food that does not easily lose its shape when heated. More specifically, the second food is a food whose shape does not change significantly from before heating due to steam generated from the inside when heated. Even more specifically, the second food is a food in which a single food is covered with a batter without being shaped, or a food in which a single food is shaped into a desired shape by cutting and then covered with a batter. Examples of the second food include fries, gyoza, spring rolls, fried chicken, deep-fried chicken, nuggets, French fries, hamburger steak, roast pork, and gratin. Furthermore, the second food is relatively less likely to crumble than the first food.

[0039] [1-2. Operation] Next, a description will be given of the operation of the heating device 1 according to this embodiment. Fig. 5 is a flowchart showing the operation of the heating device 1. At the start of the flowchart in Fig. 5, the heating mode has been designated as the grill mode by the user.

[0040] The reception unit 102 receives the heating time and the type of the object to be heated via the operation panel 5 (step S1).

[0041] Next, determination unit 103 determines whether the object to be heated contained in heating chamber 4 is the first food item or the second food item (step S2). In step S2, determination unit 103 determines whether the object to be heated is the first food item or the second food item based on the type of the object to be heated accepted by acceptance unit 102 in step S1.

[0042] If the determination unit 103 determines that the food is the first food (step S2: first food), the heating unit 101 determines whether to start heating (step S3). In step S3, the heating unit 101 makes a positive determination if the reception unit 102 receives a heating start instruction via the operation panel 5.

[0043] When the heating execution unit 101 determines to start heating (step S3: YES), the heating execution unit 101 executes a first heating step (step S4).

[0044] The first heating step is a heating step when the object to be heated is the first food product. Fig. 6 is a diagram for explaining the first heating step.

[0045] Fig. 6 shows an example of the first heating step. The first heating step illustrated in Fig. 6 includes a first microwave heating step, a first heater heating step, a second microwave heating step, and a second heater heating step, and is a heating step in which heating is performed in the order of the first microwave heating step, the first heater heating step, the second microwave heating step, and the second heater heating step. Note that in each step of the first heating step illustrated in Fig. 6, the first fan 821 and the second fan 822 rotate to send air into the heating chamber 4.

[0046] The first microwave heating step is a step of heating the object to be heated by the microwave heating unit 6. In the first heating step illustrated in Fig. 6, the first microwave heating step is the first step to be performed. In the first microwave heating step illustrated in Fig. 6, the object to be heated is heated with an output of 800 W (watts).

[0047] The first heater heating process is a process of heating the object to be heated using the heater heating unit 8. In the first heating process illustrated in FIG. 6, the first heater heating process is the second process. In the first heater heating process illustrated in FIG. 6, the object to be heated is heated using the planar heater of the planar heater unit 81, and only the first heater 823 of the convection heater unit 82 is energized to heat the object from above. In this case, it is desirable to use both heating by the planar heater unit 81 and heating by the convection heater unit 82. If the object to be heated is heated only by the planar heater unit 81, the sides of the object to be heated may not be properly heated, making it difficult to achieve a crispy texture. Furthermore, if the object to be heated is heated only by the convection heater unit 82, the heating time for the object to be heated may be extended. By using both heating by the planar heater unit 81 and heating by the convection heater unit 82, heating can be achieved in a short time and the texture of the object to be heated can be improved. It is also desirable that the convection heater unit 82 be disposed in the upper part of the interior of the oven, and that at least one of the planar heaters be disposed in the upper part of the interior of the oven. Heating by the planar heater unit 81 and heating by the convection heater unit 82 may be alternate heating or simultaneous heating.

[0048] The second microwave heating step is a step of heating the object to be heated by the microwave heating unit 6. In the first heating step illustrated in Fig. 6, the second microwave heating step is the third step to be performed. In the second microwave heating step illustrated in Fig. 6, the object to be heated is heated with an output of 600 W.

[0049] The second heater heating process is a process of heating the object to be heated using the heater heating unit 8. In the first heating process illustrated in FIG. 6, the second heater heating process is the final process. In the second heater heating process illustrated in FIG. 6, the object to be heated is heated using the planar heater of the planar heater unit 81, and only the first heater 823 of the convection heater unit 82 is energized to heat the object from above. In this case, it is desirable to use both the planar heater unit 81 and the convection heater unit 82. If the object to be heated is heated only by the planar heater unit 81, the sides of the object to be heated may not be properly heated, making it difficult to achieve a crispy texture. Furthermore, if the object to be heated is heated only by the convection heater unit 82, the heating time for the object to be heated may be extended. By using both the planar heater unit 81 and the convection heater unit 82, heating can be achieved in a short time and the texture of the object to be heated can be improved.

[0050] In the first heating step, in the first half of the first heating step, heating by the heater heating unit 8 takes up more than half of the process time. The first half of the first heating step refers to the process from the start of the first heating step until half of the total time of the first heating step has elapsed.

[0051] The example of Figure 6 shows the process times of the first microwave heating step, the first heater heating step, the second microwave heating step, and the second heater heating step, assuming that the total time of the first heating step is 100%. In the example of Figure 6, the process time of the first microwave heating step corresponds to 5% of the total time of the first heating step, assuming that the total time of the first heating step is 100%. In the example of Figure 6, the process time of the first heater heating step corresponds to 70% of the total time of the first heating step, assuming that the total time of the first heating step is 100%. In the example of Figure 6, the process time of the second microwave heating step corresponds to 15% of the total time of the first heating step, assuming that the total time of the first heating step is 100%. In the example of Figure 6, the process time of the second heater heating step corresponds to 10% of the total time of the first heating step, assuming that the total time of the first heating step is 100%.

[0052] 6 are merely examples. In the first half of the first heating step, as long as heating by the heater heating unit 8 occupies half or more of the process time, the process times of the four steps included in the first heating step are not limited to the process times shown in FIG.

[0053] If heating by the heater heating unit 8 takes up more than half of the process time in the first half of the first heating step, the process time of the first microwave heating step of the first heating step may be in the range of 0% to 25% of the total time of the first heating step.

[0054] Furthermore, if heating by the heater heating unit 8 takes up more than half of the process time in the first half of the first heating step, the process time of the first heater heating step of the first heating step may be in the range of 25% to 100% of the total time of the first heating step.

[0055] Furthermore, if heating by the heater heating unit 8 takes up more than half of the process time in the first half of the first heating step, the process time of the second microwave heating step of the first heating step may be in the range of 0 to 75% of the total time of the first heating step.

[0056] When executing the first heating step, the heating execution unit 101 determines the proportions of the process time for each of the first microwave heating step, the first heater heating step, the second microwave heating step, and the second heater heating step, with the heating time received in step S1 being 100%. Then, the heating execution unit 101 executes the first microwave heating step, the first heater heating step, the second microwave heating step, and the second heater heating step in this order based on the determined proportions. In the first heating step, the heating execution unit 101 counts the elapsed time since the start of heating and switches the process based on the counted elapsed time.

[0057] 5, when the determination unit 103 determines that the food is the second food (step S2: second food), the heating unit 101 determines whether to start heating (step S5). In step S5, when the reception unit 102 receives a heating start instruction, the heating unit 101 makes a positive determination.

[0058] When the heating execution unit 101 determines to start heating (step S5: YES), the heating execution unit 101 executes the second heating step (step S6).

[0059] The second heating step is a heating step when the object to be heated is the second food product. Fig. 7 is a diagram for explaining the second heating step.

[0060] Fig. 7 shows an example of the second heating step. The second heating step illustrated in Fig. 7 includes a first microwave heating step, a first heater heating step, and a second microwave heating step, and is a heating step in which heating is performed in the order of the first microwave heating step, the first heater heating step, and the second microwave heating step. In each step of the second heating step illustrated in Fig. 7, the first fan 821 and the second fan 822 rotate to send air into the heating chamber 4 in the first heater heating step and the second microwave heating step.

[0061] The first microwave heating step is a step of heating the object to be heated by the microwave heating unit 6. In the second heating step illustrated in Fig. 7, the first microwave heating step is performed first. In the first microwave heating step illustrated in Fig. 7, the object to be heated is heated with an output of 800 W (watts).

[0062] The first heater heating step is a step of heating the object to be heated using the heater heating unit 8. In the second heating step illustrated in FIG. 7, the first heater heating step is the second step. In the first heater heating step illustrated in FIG. 7, the object to be heated is heated using the planar heater of the planar heater unit 81, and only the first heater 823 of the heaters of the convection heater unit 82 is energized to heat the object from above. In this case, it is desirable to use both the planar heater unit 81 and the convection heater unit 82. If the object to be heated is heated only by the planar heater unit 81, the sides of the object to be heated may not be properly heated, making it difficult to achieve a crispy texture. Furthermore, if the object to be heated is heated only by the convection heater unit 82, the heating time for the object to be heated may be longer. By using both the heating by the planar heater unit 81 and the heating by the convection heater unit 82, it is possible to heat the food in a short time and improve the texture of the food. The heating by the planar heater unit 81 and the heating by the convection heater unit 82 may be alternate heating or simultaneous heating.

[0063] The second microwave heating step is a step of heating the object to be heated by the microwave heating unit 6. In the second heating step illustrated in Fig. 7, the second microwave heating step is the last step to be performed. In the second microwave heating step illustrated in Fig. 7, the object to be heated is heated with an output of 600 W.

[0064] In the second heating step, more than half of the total heating time by the microwave heating unit 6 executed in the second heating step is executed in the first half of the second heating step. Note that the first half of the second heating step refers to the step from the start of the second heating step until half of the total time of the second heating step has elapsed.

[0065] The example of Fig. 7 shows the process times of the first microwave heating step, the first heater heating step, and the second microwave heating step, assuming that the total time of the second heating step is 100%. In the example of Fig. 7, the process time of the first microwave heating step corresponds to 40% of the total time of the second heating step, assuming that the total time of the second heating step is 100%. Also, in the example of Fig. 7, the process time of the first heater heating step corresponds to 50% of the total time of the second heating step, assuming that the total time of the second heating step is 100%. Also, in the example of Fig. 7, the process time of the second microwave heating step corresponds to 10% of the total time of the second heating step, assuming that the total time of the second heating step is 100%.

[0066] 7 are merely examples. As long as more than half of the total heating time by the microwave heating unit 6 in the second heating step is performed in the first half of the second heating step, the process times of the three steps included in the second heating step are not limited to the process times shown in FIG.

[0067] If more than half of the total heating time by the microwave heating section 6 performed in the second heating step is performed in the first half of the second heating step, the process time of the first microwave heating step in the second heating step may be in the range of 0% to 70% of the total time of the second heating step.

[0068] Furthermore, if more than half of the total heating time by the microwave heating unit 6 performed in the second heating step is performed in the first half of the second heating step, the process time of the first heater heating step in the second heating step may be in the range of 30% to 100% of the total time of the second heating step.

[0069] Furthermore, if more than half of the total heating time by the microwave heating section 6 performed in the second heating step is performed in the first half of the second heating step, the process time of the second microwave heating step in the second heating step may be in the range of 0% to 35% of the total time of the second heating step.

[0070] When executing the second heating step, the heating execution unit 101 determines the proportions of the process time for each of the first microwave heating step, the first heater heating step, and the second microwave heating step, with the heating time received in step S1 being 100%. Then, the heating execution unit 101 executes the first microwave heating step, the first heater heating step, and the second microwave heating step in this order based on the determined proportions. In the first heating step, the heating execution unit 101 counts the elapsed time since the start of heating and switches the process based on the counted elapsed time.

[0071] Returning to the explanation of Figure 5, when the heating execution unit 101 completes the first heating process or the second heating process, it determines whether the reception unit 102 has received an instruction to perform additional heating within a predetermined period of time after the completion of the heating process (step S7).

[0072] If the heating execution unit 101 determines that the reception unit 102 has not received an instruction to perform additional heating (step S7: NO), the heating execution unit 101 ends this process.

[0073] On the other hand, when the heating execution unit 101 determines that the receiving unit 102 has received an instruction to perform additional heating (step S7: YES), the heating execution unit 101 performs heating using the heater heating unit 8 and the microwave heating unit 6 (step S8). Note that in step S8, the heating execution unit 101 may perform heating using only the heater heating unit 8.

[0074] [1-3. Effects, etc.] As described above, the heating device 1 includes a microwave heating unit 6 that heats the object to be heated housed in the heating chamber 4 with microwaves, a heater heating unit 8 that heats the object to be heated with a heater, and a heating execution unit 101 that performs a heating step of heating the object to be heated by controlling the microwave heating unit 6 and the heater heating unit 8. When the object to be heated is the first food item, the heating execution unit 101 performs the heating step such that heating by the heater heating unit 8 occupies more than half of the process time in the first half of the heating step.

[0075] According to this, in the first half of the heating process, the shape of the first food can be strengthened by the heating of the heater, and the shape can be prevented from being distorted by the water vapor generated from inside by the microwaves. Therefore, heating can be performed in a way that is appropriate for the object to be heated.

[0076] The heating device 1 includes a microwave heating unit 6 that heats the object to be heated housed in the heating chamber 4 with microwaves, a heater heating unit 8 that heats the object to be heated with a heater, and a heating execution unit 101 that controls the microwave heating unit 6 and the heater heating unit 8 to perform a heating step of heating the object to be heated. When the object to be heated is a second food product, the heating execution unit 101 performs the heating step in a first half of the heating step so that the heating time by the microwave heating unit 6 that is performed in the heating step occupies more than half of the heating time.

[0077] This allows for more time to heat the second food item using microwaves in the first half of the heating process, and allows the internal temperature of the food item to be raised to generate steam before the outside of the food item is baked, thereby providing heating that is appropriate for the item being heated.

[0078] The heating execution unit 101 performs heating using the heater heating unit 8 as the final step in the heating process of the first food.

[0079] This allows the moisture adhering to the surface of the first food to evaporate in the final step, and also allows the heating of the food to be completed with the moisture adhering to the surface suppressed, so that the heated food can be served with a good texture.

[0080] In the heating step of the second food, the heating execution unit 101 heats the object to be heated placed on the heating tray 7, and performs heating by the microwave heating unit 6 as the final step in the heating step of the second food.

[0081] This allows the surface of the second food item facing the placement surface of the heating tray 7 to be browned in the final step. This allows heating to be performed in a way that is appropriate for the food item, and also allows the food item to be provided with a good appearance with an even browning after heating.

[0082] The heating step includes a first microwave heating step in which heating is performed by the microwave heating unit 6, and a second microwave heating step in which heating is performed by the microwave heating unit 6 with a heating output lower than that of the first microwave heating step. In the heating step, the heating execution unit 101 performs heating by the heater heating unit 8 between the first microwave heating step and the second microwave heating step.

[0083] According to this, in the second microwave heating process, the temperature of the heating plate and the temperature of the heated object are both high, making it easy for the bottom of the heated object to brown; however, because the output of the second microwave heating process is lower than the output of the first microwave heating process, the rate at which the heated object browns is slowed down, reducing the possibility of overheating.

[0084] The heating execution unit 101 heats the object to be heated placed on the heating tray 7 in the heating process, and performs heating by the microwave heating unit 6 in the first step of the heating process.

[0085] This allows the heating dish 7 to be efficiently heated by microwaves, and the object to be heated placed on the heating dish 7 can be appropriately heated in the heating process.

[0086] The heating device 1 includes a first fan 821 and a second fan 822 that send air into the heating chamber 4. The heating execution unit 101 performs heating using the heater heating unit 8 and also sends air using the first fan 821 and the second fan 822.

[0087] This allows the heat generated from the heater heating unit 8 to reach every corner of the heating chamber 4, and prevents uneven heating depending on the position of the object to be heated in the heating chamber 4. Therefore, the object to be heated can be heated appropriately.

[0088] The heating device 1 includes a reception unit 102 that receives an instruction to perform additional heating after the heating process is completed. When the reception unit 102 receives the instruction to perform additional heating, the heating execution unit 101 executes heating by the heater heating unit 8 after the heating process is completed.

[0089] This allows the object to be browned during additional heating, and allows the object to be heated to the desired finish as desired by the user.

[0090] The heating device 1 includes a receiving unit 102 that receives an instruction to perform additional heating after the heating process is completed. When the receiving unit 102 receives the instruction to perform additional heating, the heating execution unit 101 heats the object to be heated placed on the heating tray 7 using the heater heating unit 8 and the microwave heating unit 6 after the heating process is completed.

[0091] This allows the additional heating to brown the surface of the food facing the heating plate 7 and the surface of the food not facing it, allowing the food to be heated to the desired finish as desired by the user.

[0092] The heating device 1 includes a first fan 821 and a second fan 822 that send air into the heating chamber 4. In the additional heating, the heating execution unit 101 performs heating by the heater heating unit 8 and also sends air by the first fan 821 and the second fan 822.

[0093] This allows the heat generated by the heater heating unit 8 to reach every corner of the heating chamber 4, preventing uneven heating depending on the position of the object to be heated in the heating chamber 4. Therefore, in the additional heating, the object to be heated can be appropriately browned to the desired browning by the user.

[0094] The control method of the heating device 1 is such that, when the object to be heated contained in the heating chamber 4 is the first food, in the first half of the heating process in which the object to be heated is heated using microwaves and a heater, the heating process is carried out so that heating by the heater occupies more than half of the process time.

[0095] This provides the same effects as those of the heating device 1 described above.

[0096] When the object to be heated contained in the heating chamber 4 is the second food, the heating device 1 performs the heating process in such a way that the first half of the heating process in which the object to be heated is heated using microwaves and a heater occupies more than half of the heating time performed in the heating process.

[0097] This provides the same effects as those of the heating device 1 described above.

[0098] The control program 111 causes the processor 100 of the heating device 1 to function as a heating execution unit 101 that controls the microwave heating unit 6 and the heater heating unit 8 to perform a heating step of heating the object to be heated. When the object to be heated is the first food, the heating execution unit 101 performs the heating step so that heating by the heater heating unit 8 occupies more than half of the process time in the first half of the heating step.

[0099] This provides the same effects as those of the heating device 1 described above.

[0100] The control program 111 causes the processor 100 of the heating device 1 to function as a heating execution unit 101 that controls the microwave heating unit 6 and the heater heating unit 8 to perform a heating step of heating the object to be heated. When the object to be heated is the second food, the heating execution unit 101 performs the heating step in a first half of the heating step so that the heating time by the microwave heating unit 6 that is performed in the heating step occupies more than half of the heating time.

[0101] This provides the same effects as those of the heating device 1 described above.

[0102] (Other Embodiments) As described above, the first embodiment has been described as an example disclosed in the present application. However, the technology in the present disclosure is not limited to this, and can be applied to embodiments in which modifications, substitutions, additions, omissions, etc. are made. It is also possible to combine the components described in the first embodiment to create new embodiments. Therefore, other embodiments will be described below as examples.

[0103] In the above-described embodiment, an example has been given of heating an object placed on the heating tray 7. In other embodiments, the heating process performed by the heating execution unit 101 may be a process performed on an object not placed on the heating tray 7. For example, an object placed on a heating net may be heated.

[0104] In the above-described embodiment, the heating steps are switched over as time passes. In other embodiments, the steps may be switched over based on the temperature of the heating chamber 4 or the temperature of the object to be heated. In these other embodiments, the heating device 1 includes a temperature sensor that detects the temperature of the heating chamber 4 and a temperature sensor that detects the temperature of the object to be heated.

[0105] In another embodiment, the ratio of the process time for each process in the heating process may be determined depending on the amount of the object to be heated at one time. In this other embodiment, the heating device 1 is equipped with a camera, a weight sensor, or the like as a means for detecting the amount of the object to be heated.

[0106] In another embodiment, the proportion of the process time for each process in the heating process may be determined depending on the type of the first food and depending on the type of the second food. In this other embodiment, the heating device 1 is equipped with a camera or the like as a means for detecting the type of the heated object.

[0107] In another embodiment, the proportion of the process time for each process in the heating process may be determined depending on the temperature of the object to be heated at the start of heating. In this other embodiment, the heating device 1 is equipped with a temperature sensor that detects the temperature of the object to be heated. For example, if the detected temperature of the object to be heated is a freezing temperature, the proportion of the first microwave heating process may be increased in the first half of the heating process. Alternatively, the user may input the temperature of the object to be heated.

[0108] In another embodiment, the determination unit 103 may determine whether the object to be heated is the first food or the second food based on a captured image of the object. This captured image may be an image captured by a camera provided in the heating device 1, or may be an image captured by a camera provided in an external terminal (e.g., a portable PC such as a smartphone) when the heating device 1 and the external terminal are capable of communicating with each other. In this other embodiment, the determination unit 103 determines whether the object to be heated is the first food or the second food by performing image processing such as pattern matching or color difference.

[0109] In another embodiment, the determination unit 103 may determine whether the object to be heated is the first food item or the second food item based on information transmitted from an external terminal capable of communicating with the heating device 1. In this other embodiment, the external terminal accepts input of the type of the object to be heated from the user and transmits information indicating the accepted type to the heating device 1. Then, in this other embodiment, the determination unit 103 determines whether the object to be heated is the first food item or the second food item based on the information received from the external terminal.

[0110] In another embodiment, the receiving unit 102 may receive an instruction to perform additional heating from an external terminal capable of communicating with the heating device 1.

[0111] In other embodiments, heating by microwaves and heating by a heater may be performed simultaneously. For example, in another embodiment, in the latter half of the first heating step, a heating step by microwaves and a heating step by the planar heater unit 81 are performed simultaneously. This example provides the effect of being able to cook in a short period of time, for example, when the amount of food to be heated is small. Note that when heating by microwaves and heating by a heater is performed simultaneously in the latter half of the first heating step, the microwave output is set to 300 W to 400 W. Furthermore, when heating by microwaves and heating by a heater is performed simultaneously in the latter half of the first heating step, heating by microwaves may or may not be performed after the simultaneous heating, and heating by a heater may or may not be performed.

[0112] In another embodiment, in the first heating step, microwave heating and heater heating may be alternately repeated. This makes it possible to match the baking speeds on the front and back of the object to be heated, thereby achieving the effect of making it less likely for the shape to collapse. This is because microwave heating increases the temperature of the heating dish 7, while heater heating decreases the temperature of the heating dish 7, but alternating heating can prevent the temperature of the heating dish 7 from decreasing. Furthermore, as in this other embodiment, microwave heating and heater heating may be alternately repeated in the second heating step.

[0113] In another embodiment, the last step of the second heating step may be heating with a heater.

[0114] In another embodiment, as shown in FIG. 8 , the convection heater unit 82 may be composed of only a first fan 821, a first heater 823 (not shown) that heats the air drawn in by the first fan 821, and a second heater 824 (not shown) that heats the air drawn in by the first fan 821. The first fan 821 is disposed opposite the first air intake port 45A and draws air from the heating chamber 4 through the first air intake port 45A. The air drawn in by the first fan 821 is blown out from each air outlet except for the fourth air outlet 45F. In particular, air heated by the first heater 823 is blown out from the first air outlet 45C (not shown), and air heated by the second heater 824 is blown out from the fifth air outlet 45G (not shown). In this way, the convection heater unit 82 circulates air in the heating chamber 4. The convection heater unit 82 also heats the object to be heated by air blown from each air outlet.

[0115] In another embodiment, the microwave heating rate, heating output, and heater heating rate and power supply rate may be changed depending on the degree of doneness selected before heating the first food item and the second food item begins. The user can set the degree of doneness of the heated items via the operation panel 5. For example, three levels of doneness, "high," "standard," and "low," can be selected. Figure 9 shows examples of the heating rate, heating output, and power supply rate for each degree of doneness of the first food item and the second food item.

[0116] As shown in FIG. 9 , the stronger the degree of doneness selected when selecting the first food item, the greater the time proportion of the microwave heating process. For example, when "high" is selected as the doneness, the time proportion of the microwave heating process is 30%. When "standard" is selected as the doneness, the time proportion of the microwave heating process is 20%. When "low" is selected as the doneness, the time proportion of the microwave heating process is 10%. Furthermore, the stronger the selected degree of doneness, the greater the microwave heating output. For example, when "high" is selected as the doneness, the microwave heating output is 700 W. When "standard" is selected as the doneness, the microwave heating output is 600 W. When "low" is selected as the doneness, the microwave heating output is 500 W. Furthermore, the time proportion of the microwave heating process and the microwave heating output may be changed as long as at least one of the time proportion of the microwave heating process and the microwave heating output is changed as shown in FIG. 9 .

[0117] As shown in FIG. 9 , the stronger the degree of doneness selected when selecting the first food item, the smaller the proportion of time spent on the heating process using the heater. For example, when "high" is selected as the doneness, the proportion of time spent on the heating process using the heater is 70%. When "standard" is selected as the doneness, the proportion of time spent on the heating process using the heater is 80%. When "low" is selected as the doneness, the proportion of time spent on the heating process using microwaves is 90%. Furthermore, the stronger the degree of doneness selected, the higher the heater conduction rate. For example, when "high" is selected as the doneness, the heater conduction rate is 100%. When "standard" is selected as the doneness, the heater conduction rate is 80%. When "low" is selected as the doneness, the heater conduction rate is 60%. In the above embodiment, when the finish is selected to be "high," the heater energization rate is 100%, when the finish is selected to be "standard," the heater energization rate is 80%, and when the finish is selected to be "low," the heater energization rate is 60%. However, the heater output itself may be changed to communicate with the heater depending on the selected finish level. Specifically, the stronger the selected finish level, the stronger the heater output may be communicated with the heater. For example, when the finish is selected to be "high," the heater output may be set to 1000 W and communicate with the heater; when the finish is selected to be "standard," the heater output may be set to 800 W and communicate with the heater; and when the finish is selected to be "low," the heater output may be set to 600 W and communicate with the heater. Furthermore, it is sufficient that at least one of the time proportion and the energization rate of the heating process using the heater is changed as shown in FIG. 9 .

[0118] As shown in FIG. 9 , the stronger the degree of doneness selected when selecting the second food item, the greater the time proportion of the microwave heating process. For example, when "high" is selected as the doneness, the time proportion of the microwave heating process is 50%. When "standard" is selected as the doneness, the time proportion of the microwave heating process is 40%. When "low" is selected as the doneness, the time proportion of the microwave heating process is 30%. Furthermore, the stronger the selected degree of doneness, the greater the microwave heating output. For example, when "high" is selected as the doneness, the microwave heating output is 700 W. When "standard" is selected as the doneness, the microwave heating output is 600 W. When "low" is selected as the doneness, the microwave heating output is 500 W. Furthermore, the time proportion of the microwave heating process and the microwave heating output may be changed as long as at least one of the time proportion of the microwave heating process and the microwave heating output is changed as shown in FIG. 9 .

[0119] As shown in FIG. 9 , the stronger the degree of doneness selected when selecting the second food item, the smaller the proportion of time spent on the heating process using the heater. For example, when "high" is selected as the doneness, the proportion of time spent on the heating process using the heater is 50%. When "standard" is selected as the doneness, the proportion of time spent on the heating process using the heater is 60%. When "low" is selected as the doneness, the proportion of time spent on the heating process using microwaves is 70%. Furthermore, the stronger the degree of doneness selected, the higher the heater conduction rate. For example, when "high" is selected as the doneness, the heater conduction rate is 100%. When "standard" is selected as the doneness, the heater conduction rate is 80%. When "low" is selected as the doneness, the heater conduction rate is 60%. In the above embodiment, when the finish is selected to be "high," the heater energization rate is 100%, when the finish is selected to be "standard," the heater energization rate is 80%, and when the finish is selected to be "low," the heater energization rate is 60%. However, the heater output itself may be changed to communicate with the heater depending on the selected finish level. Specifically, the stronger the selected finish level, the stronger the heater output may be communicated with the heater. For example, when the finish is selected to be "high," the heater output may be set to 1000 W and communicate with the heater; when the finish is selected to be "standard," the heater output may be set to 800 W and communicate with the heater; and when the finish is selected to be "low," the heater output may be set to 600 W and communicate with the heater. Furthermore, it is sufficient that at least one of the time proportion and the energization rate of the heating process using the heater is changed as shown in FIG. 9 . The degree of doneness of each heated object (high, medium, low) can be determined by the speed at which the heated object browns, or by the weight or initial temperature of the heated object, or the type of heated object (mainly the attached object).

[0120] The above-described embodiment is configured to have the microwave mode, grill mode, steam mode, and oven mode as heating modes. In other embodiments, as long as the grill mode is included as a heating mode, it is not necessary to have all five of these modes.

[0121] The control program 111 of the above-described embodiment can also 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 heating device 1 can download the control program 111 from the server device to achieve the above-described operation.

[0122] 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).

[0123] The configuration of the heating device 1 shown in Figure 4 is one example, and the specific implementation form is not particularly limited. In other words, it is not necessarily necessary to implement hardware corresponding to each unit individually, and it is also possible to configure the device so that a single 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.

[0124] The step units of the operation shown in Figure 5 are divided according to the main processing content to make the operation 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 operation 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.

[0125] 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.

[0126] (Additional Notes) The above description of the embodiments discloses the following techniques.

[0127] (Technology 1) A heating device comprising: a microwave heating unit that heats an object to be heated housed in a heating chamber with microwaves; a heater heating unit that heats the object to be heated with a heater; and a heating execution unit that controls the microwave heating unit and the heater heating unit to perform a heating process of heating the object to be heated, wherein, when the object to be heated is a first food item, the heating execution unit performs the heating process so that heating by the heater heating unit occupies more than half of the process time in a first half of the heating process. This allows the shape of the first food item to be strengthened by heating by the heater in the first half of the heating process, and prevents the shape from being distorted by steam generated from inside by microwaves. Therefore, heating appropriate for the object to be heated can be performed.

[0128] (Technology 2) A heating device comprising: a microwave heating unit that heats an object to be heated housed in a heating chamber using microwaves; a heater heating unit that heats the object to be heated using a heater; and a heating execution unit that controls the microwave heating unit and the heater heating unit to perform a heating process of heating the object to be heated, wherein, when the object to be heated is a second food item, the heating execution unit performs the heating process in a manner that occupies more than half of the heating time by the microwave heating unit during the first half of the heating process. This ensures that more time is spent heating the second food item using microwaves during the first half of the heating process, and the internal temperature of the food item can be raised to generate steam before the outside of the food item is baked. This allows for heating that is appropriate for the object to be heated.

[0129] (Technology 3) The heating device according to Technology 1 or 2, wherein the heating execution unit performs heating using the heater heating unit as the final step in the heating process. This allows moisture adhering to the surface of the first food to evaporate in the final step. Since heating of the heated object can be completed while suppressing moisture from adhering to the surface, the heated object can be provided with a good texture after heating.

[0130] (Technology 4) The heating device according to Technology 2, wherein the heating execution unit heats the object placed on a heating tray that is heated by microwaves in the heating process, and heating is performed by the microwave heating unit as the final step in the heating process. This allows the surface of the second food item facing the heating tray to be browned in the final step. Therefore, heating can be performed in a manner appropriate for the object, and a well-made object with an even browning can be provided after heating.

[0131] (Technology 5) The heating device according to any one of Technologies 1 to 4, wherein the heating step includes a first microwave heating step in which heating is performed by the microwave heating unit, and a second microwave heating step in which heating is performed by the microwave heating unit at a heating output lower than that of the first microwave heating step, and the heating execution unit performs heating by the heater heating unit between the first microwave heating step and the second microwave heating step in the heating step. According to this, in the second microwave heating step, the temperature of the heating plate and the temperature of the object to be heated are high, so that the bottom surface of the object to be heated is likely to brown. However, by setting the output of the second microwave heating step lower than the output of the first microwave heating step, the rate at which the object to be heated browns is slowed down, thereby reducing the possibility of overheating.

[0132] (Technology 6) The heating device according to any one of Technologies 1 to 5, wherein the heating execution unit heats the object to be heated placed on a heating tray that is heated by microwaves in the heating step, and performs heating by the microwave heating unit in a first step in the heating step. This allows the temperature of the heating tray to be efficiently increased by microwaves, and the object to be heated placed on the heating tray can be appropriately heated in the heating step.

[0133] (Technology 7) A heating device according to any one of Technology 1 to Technology 6, further comprising an air blowing unit that blows air into the heating chamber, and the heating execution unit blows air using the air blowing unit while heating using the heater heating unit. This allows the heat generated by the heater heating unit to reach every corner of the heating chamber, preventing uneven heating depending on the position of the heated object in the heating chamber. This allows the heated object to be heated appropriately. Furthermore, the entire surface of the heated object can be heated using hot air, making it easier to prevent the shape of the heated object from being distorted. Furthermore, by drying the surface of the heated object using hot air, a crispy and pleasant texture can be achieved.

[0134] (Technology 8) The heating device according to any one of Technologies 1 to 7, further comprising a reception unit that receives an instruction to perform additional heating after the heating step is completed, and the heating execution unit, when the reception unit receives the instruction to perform heating, performs heating by the heater heating unit after the heating step is completed. This allows the object to be browned in the additional heating, and heating can be performed so that the object has a finish desired by the user.

[0135] (Technology 9) A heating device according to any one of Technologies 1 to 8, further comprising a receiving unit that receives an instruction to perform additional heating after the heating step is completed, and when the receiving unit receives the instruction to perform additional heating, the heating execution unit performs heating of the object to be heated placed on a heating tray that is heated by microwaves using the heater heating unit and the microwave heating unit after the heating step is completed. This allows the additional heating to brown the surface of the food facing the heating tray and the surface of the food not facing the heating tray, and allows heating to be performed so that the object to be heated has a finish desired by the user.

[0136] (Technology 10) The heating device according to any one of Technology 1, Technology 2, Technology 8, and Technology 9, further comprising an air blowing unit that blows air into the heating chamber, and the heating execution unit blows air using the air blowing unit while heating using the heater heating unit. This allows the heat generated by the heater heating unit to reach every corner of the heating chamber, preventing uneven heating depending on the position of the heated object in the heating chamber. Therefore, the user can appropriately brown the heated object in the additional heating process.

[0137] (Technology 11) A method for controlling a heating device, in which, when the object to be heated placed in the heating chamber is a first food item, in a first half of the heating process in which the object to be heated is heated by microwaves and a heater, the heating process is performed so that heating by the heater occupies more than half of the process time. This achieves the same effects as the heating device of Technology 1.

[0138] (Technology 12) A method for controlling a heating device, in which, when the object to be heated placed in the heating chamber is a second food, the heating step in which the object to be heated is heated by microwaves and a heater is performed in a first half of the heating step so that the heating time by microwaves performed in the heating step occupies more than half of the heating time. This achieves the same effects as the heating device of Technology 2.

[0139] (Technology 13) A program for controlling a processor of a heating device including a microwave heating unit that heats an object to be heated housed in a heating chamber with microwaves and a heater heating unit that heats the object to be heated with a heater, to function as a heating execution unit that controls the microwave heating unit and the heater heating unit to perform a heating step of heating the object to be heated, and when the object to be heated is a first food, the heating execution unit performs the heating step so that heating by the heater heating unit occupies more than half of the process time in a first half of the heating step. This achieves the same effect as the heating device of Technology 1.

[0140] (Technology 14) A program for controlling a processor of a heating device including a microwave heating unit that heats an object to be heated housed in a heating chamber with microwaves and a heater heating unit that heats the object to be heated with a heater, to function as a heating execution unit that performs a heating step of heating the object to be heated by controlling the microwave heating unit and the heater heating unit, and when the object to be heated is a second food, the heating execution unit performs the heating step in a first half of the heating step so that the heating execution time by the microwave heating unit that is performed in the heating step occupies more than half of the heating time. This achieves the same effect as the heating device of Technology 2.

[0141] As described above, the heating device, the control method for the heating device, and the program according to the present invention can be used for heating an object to be heated using microwaves and a heater.

[0142] REFERENCE SIGNS LIST 1 Heating device 2 Cabinet 3 Door 4 Heating chamber 5 Operation panel 6 Microwave heating section 7 Heating tray 8 Microwave heating section 9 Steam heating section 10 Control device 11 Heating section 41 Right side 42 Left side 43 Top surface 44 Bottom surface 45 Rear surface 45A First air intake port 45B Second air intake port 45C First air outlet 45D Second air outlet 45E Third air outlet 45F Fourth air outlet 45G Fifth air outlet 46 Support member 46A Upper stage support member 46B Middle stage support member 46C Lower stage support member 47 Outlet 61 Magnetron 62 Antenna 63 Waveguide 81 Planar heater unit 82 Convection heater unit 100 Processor 101 Heating execution unit 102 Reception unit 103 Determination unit 110 Memory 111 Control program (program) 821 First fan (blower) 822 Second fan (blower) 823 First heater 824 Second heater

Claims

1. A heating device comprising: a microwave heating unit which heats an object to be heated contained in a heating chamber with microwaves; a heater heating unit which heats the object to be heated with a heater; and a heating execution unit which controls the microwave heating unit and the heater heating unit to perform a heating process of heating the object to be heated, wherein when the object to be heated is a first food product, the heating execution unit performs the heating process such that heating by the heater heating unit occupies more than half of the process time in a first half of the heating process.

2. A heating device comprising: a microwave heating unit which heats an object to be heated contained in a heating chamber using microwaves; a heater heating unit which heats the object to be heated using a heater; and a heating execution unit which controls the microwave heating unit and the heater heating unit to perform a heating process of heating the object to be heated, wherein when the object to be heated is a second food product, the heating execution unit performs the heating process in a first half of the heating process so that the heating execution time by the microwave heating unit executed in the heating process occupies more than half of the heating execution time by the microwave heating unit executed in the heating process.

3. The heating device according to claim 1 or 2, wherein the heating execution unit performs heating by the heater heating unit as a final step in the heating process.

4. The heating device according to claim 2, wherein the heating execution unit heats the object placed on a heating tray that is heated by microwaves during the heating process, and performs heating by the microwave heating unit as the final process in the heating process.

5. The heating device according to claim 1 or 2, wherein the heating process includes a first microwave heating process in which heating is performed by the microwave heating unit, and a second microwave heating process in which heating is performed by the microwave heating unit with a heating output lower than that of the first microwave heating process, and the heating execution unit performs heating by the heater heating unit between the first microwave heating process and the second microwave heating process in the heating process.

6. The heating device according to claim 1 or 2, wherein the heating execution unit heats the object placed on a heating tray that is heated by microwaves in the heating process, and performs heating by the microwave heating unit in a first step in the heating process.

7. The heating device according to claim 1 or 2, further comprising an air blowing unit that blows air into the heating chamber, wherein the heating execution unit performs heating by the heater heating unit and air blowing by the air blowing unit.

8. The heating device according to claim 1 or 2, further comprising a reception unit that receives an instruction to perform additional heating after the heating process is completed, and when the reception unit receives the instruction to perform heating, the heating execution unit performs heating by the heater heating unit after the heating process is completed.

9. A heating device as described in claim 1 or 2, further comprising a reception unit that receives an instruction to perform additional heating after the heating process is completed, and when the reception unit receives the instruction to perform additional heating, the heating execution unit performs heating of the object to be heated placed on a heating tray that is heated by microwaves using the heater heating unit and the microwave heating unit after the heating process is completed.

10. The heating device according to claim 1 or 2, further comprising an air blowing unit that blows air into the heating chamber, wherein the heating execution unit performs heating by the heater heating unit and also blows air by the air blowing unit.

11. A method for controlling a heating device, comprising the steps of: when an object to be heated placed in a heating chamber is a first food product; performing a heating process in which the object to be heated is heated by microwaves and a heater such that heating by the heater occupies more than half of the process time in a first half of the heating process.

12. A method for controlling a heating device, wherein, when the object to be heated contained in the heating chamber is a second food product, the heating process is performed in a first half of the heating process in which the object to be heated is heated using microwaves and a heater so that the heating time using microwaves in the heating process occupies more than half of the heating time.

13. A program for causing a processor of a heating device having a microwave heating unit that heats an object to be heated contained in a heating chamber with microwaves, and a heater heating unit that heats the object to be heated with a heater, to function as a heating execution unit that controls the microwave heating unit and the heater heating unit to perform a heating process of heating the object to be heated, wherein when the object to be heated is a first food product, the heating execution unit performs the heating process such that heating by the heater heating unit takes up more than half of the process time in a first half of the heating process.

14. A program for causing a processor of a heating device having a microwave heating unit that heats an object to be heated contained in a heating chamber with microwaves, and a heater heating unit that heats the object to be heated with a heater, to function as a heating execution unit that controls the microwave heating unit and the heater heating unit to perform a heating process of heating the object to be heated, wherein, when the object to be heated is a second food product, the heating execution unit performs the heating process in a first half of the heating process so as to occupy more than half of the execution time of heating by the microwave heating unit executed in the heating process.