Cooker

Abstract

To provide a cooker in which displays for a plurality of heating sources and a plurality of functions can be made common.SOLUTION: A cooker comprises: a plurality of heating parts for heating objects to be heated; an operation part for making heating settings for the heating parts; a display part for displaying the heating settings for the heating parts; and a control part for performing a first function individually set for the plurality of heating parts, and interlocking with heating conditions of the heating parts, and a second function independent of the first function. The display part comprises a common display part for making a display related to the first function, and a display related to the second function different from the display related to the first function, by switching between them in accordance with priority when the first function and the second function are performed at the same time.SELECTED DRAWING: Figure 21

Description

[Technical Field]

[0001] The present disclosure relates to a cooking device including a plurality of heating units. [Background technology]

[0002] Conventionally, it is known that, due to layout constraints and the like, a display provided on the top plate of a cooking appliance is shared across multiple heating sources or multiple functions. For example, Patent Document 1 discloses that the same function (timer function) for multiple heating sources of an induction cooking appliance is displayed on a single display, and the display is switched according to selection, etc. Furthermore, Patent Document 2 discloses that multiple functions (countdown function and count-up function) are displayed on a single display, and the display is switched by key operation. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 4439687 [Patent Document 2] Japanese Patent Application Laid-Open No. 2010-244997 Summary of the Invention [Problem to be solved by the invention]

[0004] In recent years, cooking appliances have become more multifunctional, with various functions and heat sources being installed in cooking appliances. However, in cooking appliances of the prior art, it has been difficult to standardize the displays for multiple heat sources and multiple functions.

[0005] The present disclosure is intended to solve the above-mentioned problems, and aims to provide a cooking device that can standardize displays for multiple heating sources and multiple functions. [Means for solving the problem]

[0006] The heating cooker of the present disclosure comprises a plurality of heating units that heat objects to be heated, an operation unit that sets the heating settings of the heating units, a display unit that displays the heating settings of the heating units, and a control unit that is set individually for the plurality of heating units and performs a first function that is linked to the heating state of the heating units and a second function that is independent of the first function, and the display unit has a common display unit that, when the first function and the second function are performed simultaneously, switches between displaying a display related to the first function and a display related to the second function that is different from the display related to the first function, depending on priority. [Effects of the Invention]

[0007] According to the heating cooker of the present disclosure, by having a common display unit that switches between displaying a display related to a first function and a display related to a second function depending on priority, it is possible to standardize displays for multiple heating sources and multiple functions. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 2 is a diagram illustrating an example of installation of a cooking device according to the first embodiment. [Figure 2] FIG. 1 is a diagram illustrating a schematic configuration of a cooking device according to a first embodiment. [Figure 3] 1 is a top view of a cooking device according to a first embodiment. [Figure 4] 1 is a control block diagram of a cooking device according to a first embodiment. [Figure 5] 3 is an enlarged view of an operation unit and a display unit of the cooking device according to the first embodiment. FIG. [Figure 6] 3 is an enlarged view of a power supply operation unit and a power supply display unit according to the first embodiment. FIG. [Figure 7] 3 is an enlarged view of a left operation section and a left display section in the first embodiment. FIG. [Figure 8] 10 is a display example of the left display section when normal heating is set for the left heating port in embodiment 1. [Figure 9] 10 shows an example of a display on the left display section when a cooking menu is set for the left heating port in the first embodiment. [Figure 10] 4 is an enlarged view of a right operation section and a right display section in the first embodiment. FIG. [Figure 11] 3 is an enlarged view of a central operation unit and a central display unit in the first embodiment. FIG. [Figure 12] 10 is a display example of the central display section when normal heating is set for the central heating port in embodiment 1. [Figure 13] 10 shows an example of a display on the central display section when a cooking menu is set for a heating chamber in the first embodiment. [Figure 14] 3 is an enlarged view of a common operation unit and a common display unit according to the first embodiment. FIG. [Figure 15] 10 shows an example of a display on the common display unit when a countdown function is set in the first embodiment. [Figure 16] 10 shows an example of a display on the common display unit when a count-up function is set in the first embodiment. [Figure 17] 10 is a diagram showing how the display on the common display unit changes when a countdown function is set for the right heating port in the first embodiment. FIG. [Figure 18] 10 is a diagram showing how the display on the common display unit changes when a countdown function is set for the right heating port and the center heating port in the first embodiment. FIG. [Figure 19] 10A and 10B are diagrams showing how the display on the common display unit changes when a count-up function is set in the first embodiment. [Figure 20] 10A and 10B are diagrams showing how the display on the common display unit changes when the countdown function and the countup function are simultaneously performed in the first embodiment. [Figure 21] 10 is a flowchart showing a control flow of the common display unit when a countdown function and a countup function are simultaneously performed according to the first embodiment. [Figure 22] 10 is a diagram showing how the display on the common display unit changes when the countdown function and the countup function are simultaneously performed in the second embodiment. FIG. [Figure 23]10 is a flowchart showing a control flow of the common display unit when a countdown function and a countup function are simultaneously performed in the second embodiment. [Figure 24] FIG. 11 is a diagram showing how the display on the common display unit changes when the countdown function and the countup function are simultaneously performed in the third embodiment. [Figure 25] 11 is a flowchart showing a control flow of the common display unit when a countdown function and a countup function are simultaneously performed in the third embodiment. [Figure 26] 13 is a flowchart showing the flow of switching the common display unit to a pre-expiration display in the fourth embodiment. [Figure 27] 13 is a display example of the common display unit when a load error occurs in the fifth embodiment. [Figure 28] 13 is a display example of the common display unit when a system error occurs in the fifth embodiment. [Figure 29] FIG. 13 is a diagram showing how the display on the common display unit changes when an error occurs in the fifth embodiment. [Figure 30] 13 is a flowchart showing the flow of switching the common display unit to an error display in the fifth embodiment. [Figure 31] 13 is a flowchart showing the flow of switching the common display unit to an error display in the sixth embodiment. [Figure 32] FIG. 20 is a diagram showing what the display changes to when a reason for cancellation occurs in the seventh embodiment. [Figure 33] 13 is a flowchart showing the flow of switching the display on the common display unit when a reason for cancellation occurs in the seventh embodiment. [Figure 34] 13 is a flowchart showing the flow of switching the display on the common display unit when a reason for cancellation occurs in the seventh embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] Embodiments of a cooking device according to the present disclosure will be described below with reference to the drawings. The present disclosure is not limited to the following embodiments and can be modified in various ways without departing from the spirit and scope of the present disclosure. The present disclosure also includes all possible combinations of the configurations shown in the following embodiments. The cooking device shown in the drawings is an example of an appliance to which the technical concept of the present disclosure is applied, and the appliances to which the present disclosure can be applied are not limited by the aspects shown in the drawings. In the following description, directional terms (e.g., "right," "left," "front," "rear," etc.) are used as appropriate to facilitate understanding, but these are for explanatory purposes and do not limit the present disclosure. In each drawing, identical reference numerals denote identical or equivalent components, and this applies throughout the entire specification. The relative dimensional relationships or shapes of the components in each drawing may differ from those in the actual appliances.

[0010] Embodiment 1 FIG. 1 is a diagram illustrating an example of installation of a cooking device 100 according to the first embodiment. The cooking device 100 of this embodiment is a built-in type IH (Induction Heating) cooking heater (induction heating cooker) that is incorporated into kitchen furniture 200 that has a cooking table on top. The cooking device 100 has a main body 1 and a top plate 2 placed on the main body 1. The top plate 2 is exposed above a kitchen top plate that forms the top surface of the kitchen furniture 200.

[0011] The top plate 2 is composed of, for example, a heat-resistant glass plate and a metal frame attached to the periphery of the glass plate. The top plate 2 is fixed in a watertight state between itself and the outer periphery of the top opening of the main body 1 of the cooking appliance 100 via a rubber packing or sealant. Three heating ports are provided on the top surface of the top plate 2: a left heating port 20L, a right heating port 20R, and a central heating port 20C. The left heating port 20L, the right heating port 20R, and the central heating port 20C indicate areas where cooking vessels such as pots or frying pans are placed.

[0012] An exhaust port cover 4 is provided on the rear side of the top plate 2. The exhaust port cover 4 is made of breathable punched metal or a lattice-shaped metal member, and is breathable and has low airflow resistance. Punched metal is a metal plate with through holes formed using a press die. Exhaust air from the cooking appliance 100 passes through the exhaust port cover 4 and flows out of the cooking appliance 100.

[0013] A heating door 50 is provided on the front of the main body 1 of the cooking device 100 to open and close the front of the heating chamber 5 (FIG. 2) arranged inside the main body 1. The heating door 50 is provided with a handle 501 for opening and closing the heating door 50, and a window 502 through which the inside of the heating chamber 5 can be seen.

[0014] FIG. 2 is a diagram illustrating a schematic configuration of the cooking device 100 according to the first embodiment. FIG. 2 is a schematic side view of the cooking device 100, partially seen through. In FIG. 2, a portion of the internal configuration of the main body 1 is indicated by a dashed line. As shown in FIG. 2, a left heating section 3L and a central heating section 3C are provided below the left heating port 20L and the central heating port 20C, respectively. Although not shown in FIG. 2, a right heating section 3R is also provided below the right heating port 20R. The left heating section 3L, the right heating section 3R, and the central heating section 3C are heating coils formed by spirally winding a conductive wire, such as a copper wire or an aluminum wire, and processing the outer periphery to have a circular shape. By supplying a high-frequency current to the left heating section 3L, the right heating section 3R, and the central heating section 3C, a high-frequency magnetic field is generated, and an object to be heated, such as a cooking container, placed on the left heating port 20L, the right heating port 20R, and the central heating port 20C is induction-heated.

[0015] A plurality of first temperature measuring units 11 are provided near each heating unit in the main body 1 to measure the temperature of the cooking container on the top plate 2. The first temperature measuring units 11 are arranged adjacent to the left heating unit 3L, the right heating unit 3R, and the center heating unit 3C, respectively, and measure the temperatures of the cooking containers on the left heating port 20L, the right heating port 20R, and the center heating port 20C, respectively. The first temperature measuring units 11 include an infrared sensor that measures the temperature of the cooking container non-contactly and a thermistor attached to the underside of the top plate 2 and measures the temperature of the cooking container through the top plate 2. The temperature range measured by the infrared sensor is set to, for example, -20°C to 100°C. This allows the degree of heating of the food to be measured accurately in real time, for example, in 1°C increments. Furthermore, since the thermistor measures temperature by detecting changes in electrical resistance, the upper limit of the temperature that can be measured is approximately 250°C.

[0016] A heating chamber 5 is provided inside the main body 1 below the left heating section 3L, the right heating section 3R, and the central heating section 3C. The heating chamber 5 heats food in a cooking container accommodated in the heating chamber 5. An opening is formed in the front of the heating chamber 5 for inserting and removing the cooking container. The opening of the heating chamber 5 is covered by a heating door 50 that can be opened and closed freely. The heating door 50 is rotatably supported by the main body 1 via hinges and arms (not shown). This allows the heating door 50 to open forward with its lower end serving as a pivot point. The heating door 50 may also be configured to be pulled out integrally with a support member that supports the cooking container from below via a slide rail. The heating door 50 is provided with an opening / closing sensor 503 for detecting whether the heating door 50 is open or closed. The opening / closing sensor 503 is, for example, a microswitch or an infrared sensor.

[0017] The heating chamber 5 is also provided with an upper radiant heating section 51 and a lower radiant heating section 52 that heat the food from above and below using so-called heaters. The upper radiant heating section 51 is disposed on the ceiling surface of the heating chamber 5, and the lower radiant heating section 52 is disposed on the floor surface of the heating chamber 5. The upper radiant heating section 51 and the lower radiant heating section 52 are, for example, sheath heaters.

[0018] The heating chamber 5 is also provided with a second temperature measuring unit 53 that measures the temperature of the food being cooked, the temperature inside the heating chamber 5, or the temperature of the wall surface. The second temperature measuring unit 53 includes an infrared sensor that measures the temperature of the food being cooked in the heating chamber 5 without contact, and a thermistor that is attached to the floor or wall surface of the heating chamber 5 and measures the temperature of the floor or wall surface. The temperature range measured by the infrared sensor is set to, for example, -20°C to 100°C. This makes it possible to accurately measure the degree of heating of the food being cooked in increments of, for example, 1°C in real time. Furthermore, since the thermistor measures temperature by detecting changes in electrical resistance, the upper limit of the temperature that can be measured is approximately 250°C.

[0019] In the following description, any or all of the left heating port 20L, right heating port 20R, central heating port 20C, and heating chamber 5 may be collectively referred to as the "heat source." Also, any or all of the left heating section 3L, right heating section 3R, central heating section 3C, upper radiant heating section 51, and lower radiant heating section 52 may be collectively referred to as the "heating section."

[0020] Fig. 3 is a top view of the cooking appliance 100 according to the first embodiment. As shown in Fig. 3, an operation unit 6 for a user to operate the cooking appliance 100 and a display unit 7 for displaying information to the user are provided on the front side of the upper surface of the top panel 2 of the cooking appliance 100. The operation unit 6 includes a left operation unit 61, a right operation unit 62, a central operation unit 63, a common operation unit 64, and a power operation unit 65. The display unit 7 includes a left display unit 71, a right display unit 72, a central display unit 73, a common display unit 74, and a power display unit 75.

[0021] The left operating unit 61 is operated to set the heating settings for the left heating unit 3L. The right operating unit 62 is operated to set the heating settings for the right heating unit 3R. The central operating unit 63 is operated to set the heating settings for the central heating unit 3C or the heating chamber 5. The common operating unit 64 is operated to set functions common to the left heating unit 3L, right heating unit 3R, central heating unit 3C, and heating chamber 5. The power operating unit 65 is operated to set the power settings for the cooking appliance 100.

[0022] The left display unit 71 displays the heating setting for the left heating unit 3L. The right display unit 72 displays the heating setting for the right heating unit 3R. The center display unit 73 displays the heating setting for the center heating unit 3C or the heating chamber 5. The common display unit 74 displays the settings of functions common to the left heating unit 3L, right heating unit 3R, center heating unit 3C, and heating chamber 5. The power display unit 75 displays the power setting for the cooking appliance 100.

[0023] Next, the control configuration of the cooking device 100 will be described. Fig. 4 is a control block diagram of the cooking device 100 according to the first embodiment. An overview of the control in the cooking device 100 will be described based on Fig. 4. As shown in Fig. 4, the cooking device 100 includes a control unit 8 that controls the entire cooking device 100, a left inverter circuit 9L, a right inverter circuit 9R, and a center inverter circuit 9C that drive the left heating section 3L, the right heating section 3R, and the center heating section 3C, respectively, and an alarm unit 12.

[0024] The control unit 8 is configured with a dedicated processing circuit such as an ASIC or FPGA, a processor such as a CPU that executes a program stored in the memory unit 85, or both. As shown in Fig. 4, the control unit 8 has a heating control unit 81, a display control unit 82, a notification control unit 83, a timer unit 84, and the memory unit 85. The heating control unit 81, the display control unit 82, the notification control unit 83, and the timer unit 84 are functional units realized by the processor of the control unit 8 executing a program. Alternatively, at least one of the heating control unit 81, the display control unit 82, the notification control unit 83, and the timer unit 84 may be realized by a processing circuit such as an ASIC or FPGA.

[0025] The heating control unit 81 controls the left heating unit 3L, the right heating unit 3R, the central heating unit 3C, the lower radiant heating unit 52, and the upper radiant heating unit 51. Specifically, the heating control unit 81 controls the supply of electricity to the left heating unit 3L via the left inverter circuit 9L based on the user's operation of the left operating unit 61 and the temperature of the cooking container over the left heating port 20L measured by the first temperature measuring unit 11. The heating control unit 81 also controls the supply of electricity to the right heating unit 3R via the right inverter circuit 9R based on the user's operation of the right operating unit 62 and the temperature of the cooking container over the right heating port 20R measured by the first temperature measuring unit 11.

[0026] Furthermore, when the user operates the central operation unit 63 to operate the heating chamber 5, the heating control unit 81 controls the supply of electricity to the upper radiant heating unit 51 and the lower radiant heating unit 52 based on the operation of the central operation unit 63 and the temperature inside the heating chamber 5 measured by the second temperature measurement unit 53. On the other hand, when the user operates the central operation unit 63 to operate the central heating unit 3C, the heating control unit 81 controls the supply of electricity to the central heating unit 3C via the central inverter circuit 9C based on the operation of the central operation unit 63 and the temperature of the cooking container on the central heating port 20C measured by the first temperature measurement unit 11.

[0027] The user's operations on the operation unit 6 include setting the heat power of each heating unit, setting a cooking menu, setting a countdown function, and setting a count-up function. When the heat power is set, the heating control unit 81 controls the supply of electricity to each heating unit according to the set heat power, and when a cooking menu is set, it controls the supply of electricity to each heating unit according to the drive pattern of the cooking menu. The drive pattern of the cooking menu is the heat power and drive time for each cooking menu, and is set in advance and stored in the memory unit 85. Furthermore, when the countdown function is set, the heating control unit 81 controls the supply of electricity to each heating unit according to the timing result of the timer unit 84.

[0028] The display control unit 82 controls the display of the display unit 7. Specifically, the display control unit 82 controls the display of the left display unit 71 based on the operation of the left operation unit 61, and controls the right display unit 72 based on the operation of the right operation unit 62. The display control unit 82 controls the display of the central display unit 73 based on the open signal from the open / close sensor 503 and the operation of the central operation unit 63. The display control unit 82 switches between a display related to the count-up function and a display related to the count-down function and displays them on the common display unit 74 based on the operation of the common operation unit 64 and the timing result of the timing unit 84. In the following description, the display related to the count-up function may be referred to as a "count-up display," and the display related to the count-down function may be referred to as a "count-down display." The display control unit 82 controls the display of the power display unit 75 based on the measurement result of the first temperature measurement unit 11 and the operation of the power operation unit 65.

[0029] The notification control unit 83 controls the notification unit 12. The notification unit 12 is, for example, a speaker provided in the main body 1. The notification control unit 83 activates the notification unit 12 as necessary, for example, when a malfunction occurs during operation of the cooking appliance 100, and notifies the user of the state of the cooking appliance 100 by a buzzer sound.

[0030] The timer unit 84 measures time based on the operation of the common operation unit 64. Specifically, the timer unit 84 measures the elapsed time in the count-up function and the remaining time in the count-down function.

[0031] The storage unit 85 is composed of volatile memory such as RAM, DRAM, or SRAM, non-volatile memory such as ROM, flash memory, or a hard disk drive, or a combination of these. The storage unit 85 stores various information such as programs executed by the processor of the control unit 8, parameters required for executing the programs, and information required for heating control and display control.

[0032] Fig. 5 is an enlarged view of the operation unit 6 and the display unit 7 of the cooking appliance 100 according to the first embodiment. As shown in Fig. 5, a left operation unit 61, a common operation unit 64, a central operation unit 63, a right operation unit 62, and a power operation unit 65 are arranged in this order from left to right on the front of the upper surface of the top plate 2. A left display unit 71 is arranged behind the left operation unit 61, a right display unit 72 is arranged behind the right operation unit 62, a central display unit 73 is arranged behind the central operation unit 63, a common display unit 74 is arranged behind the common operation unit 64, and a power display unit 75 is arranged behind the power operation unit 65.

[0033] Fig. 6 is an enlarged view of the power operation unit 65 and the power display unit 75 according to the first embodiment. As shown in Fig. 6, the power operation unit 65 has a main power key 651 and a limit setting key 652. Each key of the power operation unit 65 is, for example, a capacitance-type touch sensor that inputs an operation by utilizing a change in capacitance when the user lightly touches the key with a finger or the like.

[0034] The main power key 651 is a key that is operated to turn on or off the main power of the cooking appliance 100. When the main power of the cooking appliance 100 is off, the main power of the cooking appliance 100 is turned on by the user pressing the main power key 651 for, for example, several seconds. Also, when the main power of the cooking appliance 100 is on, the main power of the cooking appliance 100 is turned off by the user pressing the main power key 651 for, for example, several seconds.

[0035] The limit setting key 652 is a key for setting limits on the heating units of the cooking device 100. By operating the limit setting key 652, it is possible to impose a limit so that at least one of the heating units is not driven.

[0036] The power supply display unit 75 has a power supply lamp 751, a limit lamp 752, a first high temperature lamp 753, and a second high temperature lamp 754. The power supply lamp 751, the limit lamp 752, the first high temperature lamp 753, and the second high temperature lamp 754 are, for example, LEDs (Light Emitting Diodes), and the lighting state is switched by the display control unit 82.

[0037] Power lamp 751 is a display unit that displays whether or not the main power supply of cooking device 100 is on. For example, when power lamp 751 is lit, the main power supply of cooking device 100 is on, and when it is off, the power supply is off.

[0038] The limit lamp 752 is a display unit that displays whether or not there is a limit on the drive of each heating unit in the cooking appliance 100. When the limit lamp 752 is lit, it indicates that a limit on the drive of any of the heating units has been set, and when it is off, it indicates that the limit setting has been released.

[0039] The first high-temperature lamp 753 and the second high-temperature lamp 754 are display units that notify the user that the heating ports of the top plate 2 or the heating door 50 are at high temperatures, such as when heating is being performed by each heating unit or when heating has finished. The first high-temperature lamp 753 lights up when the temperature of the top plate 2 is equal to or higher than a threshold (high temperature) and turns off when it is below the threshold (not high temperature). The second high-temperature lamp 754 lights up when the temperature inside the heating chamber 5 is equal to or higher than a threshold (high temperature) and turns off when it is below the threshold (not high temperature). The display control unit 82 turns on or off the first high-temperature lamp 753 based on the measurement result of the first temperature measurement unit 11, and turns on or off the second high-temperature lamp 754 based on the measurement result of the second temperature measurement unit 53.

[0040] Fig. 7 is an enlarged view of the left operation unit 61 and the left display unit 71 in the first embodiment. As shown in Fig. 7, the left operation unit 61 has a left heating key 611, a menu selection key 612, a heat level down key 613, and a heat level up key 614. Each key of the left operation unit 61 is a capacitance-type touch sensor that inputs an operation by utilizing a change in capacitance when the user lightly touches the key with a finger or the like.

[0041] The left heating key 611 is a key that is operated to start or stop cooking in the left heating port 20L. That is, when the left heating key 611 is pressed by the user, the left heating unit 3L, which is disposed below the left heating port 20L, is driven. When the left heating key 611 is pressed while the left heating unit 3L is being driven, the driving of the left heating unit 3L is stopped.

[0042] The menu selection key 612 is a key that is operated to select a cooking menu to be performed at the left heating port 20L. Each time the menu selection key 612 is pressed, one of the multiple cooking menus corresponding to the menu display section 712 can be selected. For example, the cooking menus corresponding to the left heating port 20L are "frying," "cooking rice," and "boiling water."

[0043] The heat level down key 613 and the heat level up key 614 are keys that are operated to specify the heat level during cooking in the left heating port 20L. Each time the heat level down key 613 is pressed, the heat level is decreased by one level, and each time the heat level up key 614 is pressed, the heat level is increased by one level.

[0044] The left display unit 71 has a heating power display unit 711 and a menu display unit 712. The heating power display unit 711 and the menu display unit 712 are made up of multiple LEDs, and are turned on or off in response to the operation of each key on the left operation unit 61.

[0045] The heat level indicator 711 is made up of multiple LEDs arranged in a row, and displays the heat level or temperature of the left heating port 20L in multiple stages. The display control unit 82 lights up the number of LEDs in the heat level indicator 711 according to the heat level set using the heat level down key 613 and the heat level up key 614, or the temperature set in the cooking menu.

[0046] The menu display unit 712 displays the cooking menu set for the left heating port 20L or the cooking menu currently being performed. The menu display unit 712 consists of multiple cooking menu items displayed in text and LEDs corresponding to each cooking menu item. Cooking menu items set for the left heating port 20L are, for example, "frying," "cooking rice," and "boiling water." The display control unit 82 lights up the LED on the menu display unit 712 that corresponds to the cooking menu item selected with the menu selection key 612.

[0047] FIG. 8 is an example of the display on the left display unit 71 when normal heating is set for the left heating port 20L in embodiment 1. In normal heating, the operating procedure is to first press the left heating key 611, then press the heat increase key 614 to set the heat, thereby driving the left heating unit 3L and starting heating of the left heating port 20L. When heating of the left heating port 20L starts, the heat power display unit 711 lights up according to the set heat power. FIG. 8 shows an example when the heat power is set to "4," and four LEDs are lit on the heat power display unit 711.

[0048] 9 is an example of the display on left display unit 71 when a cooking menu is set for left heating port 20L in embodiment 1. When setting a cooking menu, the operating procedure is as follows: first, left heating key 611 is pressed, and then menu selection key 612 is pressed to select a cooking menu, thereby starting heating. When heating starts, an LED corresponding to the cooking menu set on menu display unit 712 lights up. FIG. 9 shows an example when "deep-fried food" is selected from the cooking menu, and the LED corresponding to "deep-fried food" on menu display unit 712 and the LED corresponding to 180°C set in the drive pattern for "deep-fried food" on heat power display unit 711 are both lit up.

[0049] Fig. 10 is an enlarged view of the right operation unit 62 and the right display unit 72 in embodiment 1. As shown in Fig. 10, the right operation unit 62 has a right heating key 621, a menu selection key 622, a heat level down key 623, and a heat level up key 624. Each key of the right operation unit 62 is a capacitance-type touch sensor that inputs an operation by utilizing a change in capacitance when the user lightly touches the key with a finger or the like.

[0050] The right heating key 621 is a key that is operated to start or stop cooking at the right heating port 20R. That is, when the right heating key 621 is pressed by the user, the right heating unit 3R, which is disposed below the right heating port 20R, is driven. When the right heating key 621 is pressed while the right heating unit 3R is being driven, the driving of the right heating unit 3R is stopped.

[0051] The menu selection key 622 is a key that is operated to select a cooking menu to be performed with the right heating port 20R. Each time the menu selection key 622 is pressed, one of the multiple cooking menus corresponding to the menu display section 722 can be selected. For example, the cooking menus corresponding to the right heating port 20R are "frying," "cooking rice," and "boiling water."

[0052] The heat level down key 623 and the heat level up key 624 are keys that are operated to specify the heat level during cooking in the right heating port 20R. Each time the heat level down key 623 is pressed, the heat level is decreased by one level, and each time the heat level up key 624 is pressed, the heat level is increased by one level.

[0053] The right display unit 72 has a heating power display unit 721 and a menu display unit 722. The heating power display unit 721 and the menu display unit 722 are made up of a plurality of LEDs, and are turned on or off in response to the operation of each key on the right operation unit 62.

[0054] The heat power display unit 721 is made up of multiple LEDs arranged in a row, and displays the heat power or temperature of the right heating port 20R in multiple stages. The display control unit 82 lights up the number of LEDs in the heat power display unit 721 according to the heat power set with the heat power down key 623 and the heat power up key 624 or the temperature set in the cooking menu.

[0055] The menu display unit 722 displays the cooking menu set for the right heating port 20R or the cooking menu currently being performed. The menu display unit 722 consists of multiple cooking menu items displayed in text and LEDs corresponding to each cooking menu item. Cooking menu items set for the right heating port 20R are, for example, "frying," "cooking rice," and "boiling water." The display control unit 82 lights up the LED on the menu display unit 722 that corresponds to the cooking menu item selected with the menu selection key 622.

[0056] An example of the display on the right display unit 72 when normal heating is set for the right heating port 20R is the same as the example of the display on the left display unit 71 when normal heating is set for the left heating port 20L shown in Fig. 8. Also, an example of the display on the right display unit 72 when a cooking menu is set for the right heating port 20R is the same as the example of the display on the left display unit 71 when a cooking menu is set for the left heating port 20L shown in Fig. 9.

[0057] Fig. 11 is an enlarged view of central operation unit 63 and central display unit 73 in embodiment 1. As shown in Fig. 11, central operation unit 63 has a central heating key 631, a heating chamber heating key 632, a menu selection key 633, a heat level down key 634, and a heat level up key 635. Each key of central operation unit 63 is a capacitance-type touch sensor that inputs an operation by utilizing a change in capacitance when the user lightly touches the key with a finger or the like.

[0058] The central heating key 631 is a key that is operated to start or stop cooking using the central heating port 20C. That is, pressing the central heating key 631 drives the central heating unit 3C that is located below the central heating port 20C. Pressing the central heating key 631 while the central heating unit 3C is being driven stops the driving of the central heating unit 3C.

[0059] The heating chamber heating key 632 is a key that is operated to start or stop cooking in the heating chamber 5. That is, pressing the heating chamber heating key 632 drives the upper radiant heating unit 51 and the lower radiant heating unit 52 that are arranged in the heating chamber 5. Pressing the heating chamber heating key 632 while the upper radiant heating unit 51 and the lower radiant heating unit 52 are driven stops the driving of the upper radiant heating unit 51 and the lower radiant heating unit 52.

[0060] The menu selection key 633 is a key that is operated when selecting a cooking menu to be performed in the heating chamber 5. Each time the menu selection key 633 is pressed, one of a plurality of cooking menus corresponding to the menu display section 732 can be selected. For example, the cooking menus corresponding to the heating chamber 5 are "fillet," "whole grill," "automatic," "oven," "grill," or "care."

[0061] The heat level down key 634 and the heat level up key 635 are keys that are operated to specify the heat level during cooking in the central heating port 20C. Each time the heat level down key 634 is pressed, the heat level is decreased by one level, and each time the heat level up key 635 is pressed, the heat level is increased by one level.

[0062] The central display unit 73 has a heating power display unit 731 and a menu display unit 732. The heating power display unit 731 and the menu display unit 732 are made up of a plurality of LEDs, and are turned on or off in response to the operation of each key on the central operation unit 63.

[0063] The heat power display unit 731 is made up of multiple LEDs arranged in a row, and displays the heat power of the central heating port 20C and the temperature of the heating chamber 5 in multiple levels. The display control unit 82 lights up the number of LEDs in the heat power display unit 711 according to the heat power set with the heat power down key 613 and the heat power up key 614 or the temperature set in the heating chamber 5.

[0064] The menu display unit 732 displays the cooking menu set in the heating chamber 5 or the cooking menu being performed. The menu display unit 732 consists of multiple cooking menu items displayed in text and LEDs corresponding to each cooking menu item. Cooking menu items set in the heating chamber 5 are, for example, "fillet," "whole grill," "automatic," "oven," "grill," and "care." The display control unit 82 lights up the LED in the menu display unit 722 that corresponds to the cooking menu item selected with the menu selection key 633.

[0065] Figure 12 is an example of the display on the central display unit 73 when normal heating is set for the central heating port 20C in embodiment 1. In normal heating, the operating procedure is as follows: first, the central heating key 631 is pressed, and then the heat increase key 635 is pressed to set the heat, which activates the central heating unit 3C and starts heating the central heating port 20C. When heating of the central heating port 20C starts, the heat power display unit 731 lights up according to the set heat power. Figure 12 shows an example when the heat power is set to "3," and three LEDs are lit on the heat power display unit 731.

[0066] 13 is an example of the display on central display unit 73 when a cooking menu is set for heating chamber 5 in embodiment 1. When setting a cooking menu, the operating procedure is as follows: first, heating chamber heating key 632 is pressed, and then menu selection key 633 is pressed to select a cooking menu, thereby starting heating. When heating starts, the LED corresponding to the cooking menu set in menu display unit 732 lights up. FIG. 13 shows an example when the cooking menu "grill" is selected, and the LED corresponding to "grill" in menu display unit 732 and the LED corresponding to 180°C set in the drive pattern for "grill" in heat power display unit 731 are both lit up.

[0067] 14 is an enlarged view of the common operation unit 64 and the common display unit 74 in the first embodiment. The common display unit 74 can be set for each heating unit of the cooking device 100, and switches between displaying a first function that is performed in conjunction with the heating state of each heating unit and a second function that is performed independently of the first function. In the present embodiment, the first function is a countdown function, and the second function is a countup function.

[0068] The countdown function is a timer function that can be set for a running heating unit, and automatically stops the operation of the heating unit when the set heating time has elapsed. In the countdown function, the elapse of the set heating time is also referred to as the count expiring, or the remaining time reaching 0. The countdown function can be set individually for the left heating port 20L, right heating port 20R, center heating port 20C, and heating chamber 5. In the following explanation, the countdown function will be described as being set for the heat source, but this means that the countdown function is set for the heating unit.

[0069] The count-up function is a timer function that can be set even when the heating unit is not operating. When the count-up function is set, the elapsed time from the start of the count-up function is measured. The count-up function does not stop the heating unit that is running even if the count expires. The expiration of the count in the count-up function means that the elapsed time has reached a preset time. The count-up function does not have to be set in accordance with the heating unit.

[0070] The common operation unit 64 is used to input operations related to the first function and the second function that are common to each heating unit. As shown in Fig. 14, the common operation unit 64 has a countdown key 641, a minus key 642, a plus key 643, and a countup key 644. Each key of the common operation unit 64 is, for example, a capacitance-type touch sensor that inputs an operation by utilizing a change in capacitance when the user lightly touches the key with a finger or the like.

[0071] The countdown key 641 is a key for selecting the countdown function. The countdown function is set by pressing the countdown key 641. In addition, the heat source for which the countdown function is set can be selected by pressing the countdown key 641 multiple times in succession. Specifically, each time the countdown key 641 is pressed, the heat source for which the countdown function is set can be switched (toggled) in the following order: left heating outlet 20L → right heating outlet 20R → central heating outlet 20C → heating chamber 5 → left heating outlet 20L...

[0072] Then, if the countdown key 641 is not pressed for a preset waiting time (for example, three seconds) after being pressed, the setting of the countdown function is confirmed and the countdown function is implemented. On the other hand, if the countdown key 641 is pressed before the waiting time has elapsed after being pressed, the setting is not confirmed and the countdown function is not implemented. Also, the countdown function can be stopped by pressing and holding the countdown key 641.

[0073] The minus key 642 and plus key 643 are keys that are operated to specify the heating time when the countdown function is set. Each time the minus key 642 is pressed, the time is decreased by one step, and each time the plus key 643 is pressed, the time is increased by one step.

[0074] The count-up key 644 is a key for selecting the count-up function. By pressing the count-up key 644, the count-up function can be started and stopped.

[0075] 14, the common display unit 74 has a count display unit 741, a countdown display unit 742, and a countup display unit 743. Each display unit of the common display unit 74 is made up of a plurality of LEDs, and turns on or off in response to the operation of each key on the common operation unit 64 and the timing result by the timing unit 84.

[0076] The count display unit 741 displays the remaining time in the countdown function and the elapsed time in the countup function. The remaining time in the countdown function is the set heating time minus the time elapsed since the start of the countdown function. The elapsed time in the countup function is the time elapsed since the start of the countup function. As shown in FIG. 14, the count display unit 741 in this embodiment consists of three 7-segment LEDs and is capable of displaying three-digit numbers. This allows for the display of one digit for "hours" and two digits for "minutes," or one digit for "minutes" and two digits for "seconds." The minimum display unit in the countdown function is one minute, and the minimum display unit in the countup function is one second.

[0077] The countdown display unit 742 is a display unit that notifies the user of the heat source for which the countdown function is set and the heat source for which the count is being displayed on the count display unit 741. The countdown display unit 742 has a left lamp 742L, a right lamp 742R, a center lamp 742C, and a heating chamber lamp 742H. The left lamp 742L indicates whether the countdown function is set for the left heating port 20L. The right lamp 742R indicates whether the countdown function is set for the right heating port 20R. The center lamp 742C indicates whether the countdown function is set for the center heating port 20C. The heating chamber lamp 742H indicates whether the countdown function is set for the heating chamber 5.

[0078] When each lamp in countdown display unit 742 is lit, it indicates that a countdown function has been set for the corresponding heat source and is currently running. When each lamp is flashing, it indicates that the remaining time for the heat source corresponding to the flashing lamp is being displayed on count display unit 741. When each lamp is off, it indicates that the countdown function has not been set.

[0079] The count-up display section 743 indicates whether the count-up function is set. When the count-up display section 743 is lit, this indicates that the count-up function is set, but the time displayed in the count display section 741 is not the elapsed time in the count-up function. When the count-up display section 743 is flashing, this indicates that the count-up function is set, and the time displayed in the count display section 741 is the elapsed time in the count-up function. When the count-up display section 743 is off, this indicates that the count-up function is not being performed, and the count display section 741 does not display the count in the count-up function.

[0080] Fig. 15 is a display example of the common display unit 74 when the countdown function is set in embodiment 1. Fig. 15 shows an example in which, as shown in Fig. 8, with normal heating set for the left heating port 20L, the countdown key 641 is pressed, and then the heating time is set by operating the minus key 642 and the plus key 643, and the countdown function is started. In this case, as shown in Fig. 15, the left lamp 742L corresponding to the left heating port 20L on the countdown display unit 742 lights up, and the remaining time of the countdown function, "5," and the unit of time, "minutes," are displayed on the count display unit 741.

[0081] Fig. 16 shows an example of the display of common display unit 74 when the count-up function is set in embodiment 1. When count-up key 644 is pressed, count-up display unit 743 lights up, as shown in Fig. 16, and count display unit 741 displays the elapsed time since the start of the count-up function (3 minutes and 45 seconds in the example of Fig. 16).

[0082] Next, the display method of the common display unit 74 will be described in detail. (1) Countdown function setting (single) First, the setting procedure when the countdown function is set for one heat source will be explained. Below, the case where the countdown function is set for the right heating port 20R will be explained as an example. The left heating port 20L, the center heating port 20C, and the heating chamber 5 can also be set using the same operation as for the right heating port 20R.

[0083] 17 is a diagram showing how the display on the common display unit 74 changes when the countdown function is set for the right heating port 20R in embodiment 1. The countdown function can only be set for a heating element that is currently running, so in order to set the countdown function, it is necessary to start heating the right heating port 20R to be set. In the example of FIG. 17, it is assumed that nothing is displayed on the common display unit 74 before heating of the right heating port 20R starts.

[0084] First, the right heating key 621 on the right operation unit 62 is pressed, and the right heating unit 3R is activated. Then, the heating power down key 623 and the heating power up key 624 are pressed to set the heating power, and heating of the right heating port 20R begins. At this point, the settings for the countdown function and countup function have not been confirmed for all heating sources, so the display on the common display unit 74 shows that all LEDs are off, as shown in Figure 17(a).

[0085] When the countdown key 641 is pressed once in the state shown in FIG. 17(a), the countdown function for the left heating port 20L is selected. When the countdown function for the left heating port 20L is selected, the common display unit 74 switches to the display shown in FIG. 17(b). More specifically, the left lamp 742L corresponding to the left heating port 20L on the countdown display unit 742 flashes, and the count display unit 741 displays the count for the countdown function of the left heating port 20L. In this example, because the left heating unit 3L is not driven, the count display unit 741 displays "--", indicating that the countdown function cannot be set. Furthermore, at this time, the setting of the countdown function has not been confirmed, so the display on the count display unit 741 is flashing.

[0086] When the countdown key 641 is pressed again in the state shown in FIG. 17(b), the countdown function for the right heating port 20R is selected. When the countdown function for the right heating port 20R is selected, the common display unit 74 switches to the display shown in FIG. 17(c). Specifically, the right lamp 742R corresponding to the right heating port 20R on the countdown display unit 742 flashes, and the left lamp 742L corresponding to the left heating port 20L for which the countdown function is not set goes out. The count display unit 741 then displays the remaining time for the countdown function of the right heating port 20R. Here, because the right heating unit 3R is driven, a preset default time (e.g., 10 minutes) is displayed on the count display unit 741. In this case, the countdown function setting has not been confirmed, so the display on the count display unit 741 is flashing.

[0087] By pressing minus key 642 and plus key 643 in the state shown in Figure 17(c), the time remaining until the countdown function expires (heating time tr) is set. For example, each time minus key 642 is pressed, the time displayed in count display unit 741 decreases by one minute, and each time plus key 643 is pressed, the time displayed in count display unit 741 increases by one minute. Figure 17(d) shows a state in which minus key 642 has been pressed five times, setting the heating time tr from the default of 10 minutes to 5 minutes. In this case, the setting has not yet been confirmed, so the display in count display unit 741 is flashing.

[0088] When the waiting time (e.g., 3 seconds) has elapsed with the heating time tr set, the countdown function setting is confirmed and the countdown function starts. When the countdown function starts, the display of count display unit 741 changes from flashing to lit, and the remaining time displayed on count display unit 741 changes according to the timing result of timing unit 84, as shown in Fig. 17(e). Meanwhile, the display of countdown display unit 742 continues to flash.

[0089] When the remaining time in the countdown function reaches 0, that is, when the heating time tr has elapsed since the start of the countdown function, the heating control unit 81 stops driving the right heating unit 3R, and the common display unit 74 displays as shown in FIG. 17(f). Thereafter, the display in FIG. 17(f) continues for a preset waiting time (e.g., 10 seconds) to notify that the count has expired. After the waiting time has elapsed, the count display unit 741 and the countdown display unit 742 are turned off. If the right heating key 621 is pressed and the driving of the right heating unit 3R is stopped before the remaining time reaches 0, the countdown function set for the right heating port 20R is canceled, and the displays in the count display unit 741 and the countdown display unit 742 are turned off.

[0090] (2) Countdown function settings (multiple) Next, the setting procedure when the countdown function is performed simultaneously for multiple heat sources will be described. Below, an example will be described where the countdown function is set for the right heating port 20R and the central heating port 20C. Figure 18 is a diagram showing how the display on the common display unit 74 changes when the countdown function is set for the right heating port 20R and the central heating port 20C in embodiment 1.

[0091] To set the countdown function, heating of the right heating port 20R and the central heating port 20C begins. The start of heating of the right heating port 20R is as explained above in (1) Setting the countdown function (single). To heat the central heating port 20C, first, the central heating key 631 on the central operation unit 63 is pressed, and the central heating unit 3C is driven. Then, the heating power down key 634 and the heating power up key 635 are pressed, and the heating power is set, and heating of the central heating port 20C begins.

[0092] The procedure for setting the countdown function of the right heating port 20R is the same as that described above in (1) Setting the countdown function (single), and the display on the common display unit 74 is the same as that shown in Figure 17. When the setting of the countdown function for the right heating port 20R is confirmed and the countdown function starts, the display on the count display unit 741 changes from flashing to lit, as shown in Figure 18(e). Meanwhile, the display on the countdown display unit 742 remains flashing.

[0093] When the countdown key 641 is pressed while the countdown function for the right heating port 20R is in progress, the countdown function for the central heating port 20C is selected. When the countdown function for the central heating port 20C is selected, the common display unit 74 switches to the display shown in FIG. 18(f). More specifically, the central lamp 742C corresponding to the central heating port 20C on the countdown display unit 742 flashes, and the count display unit 741 displays the remaining time for the countdown function of the central heating port 20C. Here, because the central heating unit 3C is driven, a preset default time (e.g., 10 minutes) is displayed on the count display unit 741. At this point, the setting for the countdown function for the central heating port 20C has not been confirmed, so the display on the count display unit 741 is flashing.

[0094] By pressing minus key 642 and plus key 643 in the state shown in Figure 18(f), the time remaining until the countdown function expires (heating time tc) is set. For example, each time minus key 642 is pressed, the time displayed in count display unit 741 decreases by one minute, and each time plus key 643 is pressed, the time displayed in count display unit 741 increases by one minute. Figure 18(g) shows a state in which minus key 642 has been pressed seven times, setting the heating time tc from the default of 10 minutes to three minutes. In this case as well, the setting has not been confirmed, so the display in count display unit 741 is flashing.

[0095] When the heating time tc has been set and a standby time (e.g., 3 seconds) has elapsed, the setting of the countdown function for the central heating port 20C is confirmed and the countdown function is started. When the countdown function is started, as shown in FIG. 18(h), the display on the count display unit 741 changes from flashing to lit, and the remaining time displayed on the count display unit 741 is changed according to the timing result by the timing unit 84. Meanwhile, the central lamp 742C of the countdown display unit 742 continues to flash. In addition, the right lamp 742R of the countdown display unit 742 corresponding to the right heating port 20R that is currently being heated also continues to light up.

[0096] When the remaining time of the countdown function for any heat source reaches 0, i.e., when the time elapsed since the start of the countdown function reaches the heating time, the heating control unit 81 stops driving the corresponding heating unit, and the common display unit 74 displays the display shown in FIG. 18(i). Thereafter, the display shown in FIG. 18(i) continues for a preset standby time (e.g., 10 seconds), indicating that the count for the heat source (e.g., central heating port 20C) has expired. After the standby time has elapsed, the lamp corresponding to the heat source whose count has expired is turned off in the countdown display unit 742. If the countdown function for another heat source is still active, the count display unit 741 switches to display the heat source whose countdown function is being executed. When the countdown function for all heat sources reaches 0, the count display unit 741 and the countdown display unit 742 are turned off.

[0097] Furthermore, if the right heating key 621 corresponding to the right heating unit 3R or the central heating key 631 corresponding to the central heating unit 3C is pressed before the remaining time reaches 0, and the driving of the heating unit is stopped, the countdown function set for the stopped heating unit is canceled. In this case, the lamp corresponding to the canceled heating source is turned off in the countdown display unit 742, and the count display unit 741 is switched to display the heating source for which the countdown function is being performed. For example, if the right heating key 621 corresponding to the right heating port 20R is pressed before the countdown expires, the right lamp 742R corresponding to the right heating port 20R in the countdown display unit 742 is turned off, and the count display unit 741 is switched to display the central heating port 20C for which the countdown function is being performed.

[0098] (3) Setting the count-up function 19 is a diagram showing how the display of the common display unit 74 changes when the count-up function is set in the first embodiment. The count-up function is an independent counting function, and therefore, like the count-down function, it can be set even when the heating unit is not operating. Before the count-up function is set, the count-up or count-down function is not set for any of the heating sources, and therefore the display of the common display unit 74 shows all LEDs turned off, as shown in FIG. 19(a).

[0099] When the count-up key 644 is pressed once while the count-down function or count-up function has not been set for any of the heat sources, the count-up function is selected and measurement of the elapsed time begins. When measurement of the elapsed time begins, the common display unit 74 switches to the display shown in FIG. 19(b). More specifically, the elapsed time in the count-up function is displayed on the count display unit 741. Then, the LED of the count-up display unit 743 flashes.

[0100] If count up key 644 is pressed while the count up function is in progress, the count up function is stopped and measurement of the elapsed time is stopped. Then, while the elapsed time is displayed on count display unit 741, the unit waits until a preset waiting time (for example, 10 seconds) has elapsed, after which count display unit 741 and count up display unit 743 are turned off.

[0101] (4) Setting the countdown and countup functions 20 is a diagram showing how the display of the common display unit 74 changes when the countdown function and the countup function are simultaneously performed in embodiment 1. The following describes an example in which the countdown function for the right heating port 20R, the countup function, and the countdown function for the central heating port 20C are set in this order. Note that it is assumed here that the right heating unit 3R and the central heating unit 3C are already driven.

[0102] In this embodiment, when multiple functions are performed using multiple heat sources, display priorities indicating which functions or which heat sources are to be displayed and in what order on the common display unit 74 are set in advance and stored in the memory unit 85 of the control unit 8. The display control unit 82 switches the display on the common display unit 74 based on the display priorities stored in the memory unit 85. In this embodiment, the priority of the count-up display is set higher than the priority of the count-down display, and in the count-down display, the priority of the display of the heat source that was displayed last time (the heat source stored as previously displayed information, which will be described later) is set higher than the priority of the display of other heat sources.

[0103] The procedure for setting the countdown function of the right heating port 20R is the same as that described above in (1) Setting the countdown function (single), and the display on the common display unit 74 is the same as that shown in Figure 17. When the setting of the countdown function for the right heating port 20R is confirmed and the countdown function starts, the display on the count display unit 741 changes from flashing to lit, as shown in Figure 20(e). Meanwhile, the display on the countdown display unit 742 remains flashing.

[0104] When the count-up key 644 is pressed while the count-down function of the right heating port 20R is being performed, the count-up function is selected. In this case, the remaining time continues to be measured in the currently performed count-down function, and the elapsed time starts to be measured in the count-up function.

[0105] Then, the common display unit 74 is switched to a count-up display. More specifically, as shown in FIG. 20(f), the elapsed time in the count-up function is displayed on the count display unit 741, and the LED of the count-up display unit 743 flashes. In addition, the right lamp 742R corresponding to the right heating port 20R for which the count-down function is being performed is lit. At this time, the heating source corresponding to the count-down function that was displayed before the display was switched to the count-up display is stored in the memory unit 85 as the previous display information. In this case, the right heating port 20R is stored in the memory unit 85 as the previous display information.

[0106] When the countdown key 641 is pressed in the state shown in FIG. 20(f), the common display unit 74 switches to a countdown display. When switching to a countdown display, the countdown display of the heating source that was displayed immediately before switching to the count-up display is displayed preferentially. In this case, the display of the common display unit 74 switches to a countdown display of the right heating port 20R. More specifically, as shown in FIG. 20(g), the count display unit 741 displays the remaining time in the countdown function for the right heating port 20R. In addition, the right lamp 742R of the countdown display unit 742 flashes, and the flashing of the count-up display unit 743 is changed to a lit state. In this case, measurement of the remaining time in the currently running countdown function and measurement of the elapsed time in the count-up function continue.

[0107] When the countdown key 641 is pressed during the countdown function of the right heating port 20R, the countdown function for the central heating port 20C is selected. When the countdown function for the central heating port 20C is selected, the common display unit 74 switches to the display shown in FIG. 20(h). More specifically, the central lamp 742C corresponding to the central heating port 20C on the countdown display unit 742 flashes, and the remaining time for the countdown function of the central heating port 20C is displayed on the count display unit 741. Here, because the central heating unit 3C is driven, a preset default time (for example, 10 minutes) is displayed on the count display unit 741. At this point, the setting for the countdown function for the central heating port 20C has not been confirmed, so the display on the count display unit 741 is flashing.

[0108] By pressing minus key 642 and plus key 643 in the state shown in Figure 20(h), the time remaining until the countdown function expires (heating time tc) is set. For example, each time minus key 642 is pressed, the time displayed in count display unit 741 decreases by one minute, and each time plus key 643 is pressed, the time displayed in count display unit 741 increases by one minute. Figure 20(i) shows a state in which minus key 642 has been pressed three times, setting the heating time tc from the default of 10 minutes to 7 minutes. In this case as well, the setting has not been confirmed, so the display in count display unit 741 is flashing.

[0109] When the heating time tc has been set and a standby time (e.g., 3 seconds) has elapsed, the setting of the countdown function for the central heating port 20C is confirmed and the countdown function is started. When the countdown function is started, as shown in FIG. 20(j), the display on the count display unit 741 changes from flashing to lit, and the remaining time displayed on the count display unit 741 is changed according to the timing result by the timing unit 84. Meanwhile, the central lamp 742C of the countdown display unit 742 continues to flash. In addition, the right lamp 742R of the countdown display unit 742 corresponding to the currently operating right heating port 20R and the count-up display unit 743 continue to be lit.

[0110] In the state shown in FIG. 20(j), when a preset waiting time (e.g., 10 seconds) has elapsed, the common display unit 74 switches to count-up display. This is because the count-up display is set to have a higher priority than the count-down display. In this case, as shown in FIG. 20(k), the count-up display unit 741 displays the elapsed time in the count-up function, and the LED of the count-up display unit 743 flashes. In addition, the right lamp 742R and the center lamp 742C corresponding to the right heating port 20R and the center heating port 20C, which are currently performing the count-down function, are lit. At this time, the heating source for which the count-down function was set and which was displayed before the display was switched to the count-up display is stored in the memory unit 85 as the previous display information. In this case, the center heating port 20C is stored as the previous display information.

[0111] When the countdown key 641 is pressed in the state shown in Figure 20(k), the common display unit 74 switches to a countdown display. When switching to a countdown display, the countdown display of the heating source stored as the previously displayed information is displayed preferentially. In this case, the countdown display is switched to the countdown display of the central heating port 20C. More specifically, as shown in Figure 20(l), the count display unit 741 displays the remaining time of the countdown function for the central heating port 20C. In addition, the central lamp 742C of the countdown display unit 742 flashes, the right lamp 742R continues to light, and the count-up display unit 743 changes from flashing to lighting.

[0112] Fig. 21 is a flowchart showing the flow of control of common display unit 74 when the countdown function and the countup function are performed simultaneously in embodiment 1. The flowchart in Fig. 21 is performed by display control unit 82 of control unit 8 when the main power supply of cooking appliance 100 is turned on and the countdown function and the countup function for multiple heating sources are performed simultaneously, and ends when cooking appliance 100 is powered off.

[0113] First, it is determined whether the countdown key 641 has been pressed (S1). If the countdown key 641 has been pressed (S1: YES), it is determined whether the display on the common display unit 74 is a count-up display (S2). If the display on the common display unit 74 is not a count-up display (S2: NO), that is, if the display on the common display unit 74 is a countdown display, the display on the common display unit 74 is switched to a countdown display for the heating source that is next selected on the toggle (S3). After the display on the count display unit 741 has been switched, the process returns to step S1, and the subsequent determinations are repeated.

[0114] If the display on the common display unit 74 is a count-up display (S2: YES), the count-up display on the common display unit 74 is switched to a count-down display of the heating source of the previously displayed information stored in the memory unit 85 (S4). After the display on the count display unit 741 is switched, the process returns to step S1, and the subsequent determinations are repeated.

[0115] If the countdown key 641 has not been pressed (S1: NO), it is determined whether the countup key 644 has been pressed (S5). If the countup key 644 has been pressed (S5: YES), it is determined whether the display on the common display unit 74 is a countup display (S6). If the display on the common display unit 74 is not a countup display (S6: NO), that is, if the display on the common display unit 74 is a countdown display, the heating source of the currently displayed countdown display is stored in the memory unit 85 as previous display information (S7). Then, the countdown display on the common display unit 74 is switched to a countup display (S8). After the display on the count display unit 741 has been switched, the process returns to step S1, and the subsequent determinations are repeated.

[0116] On the other hand, if the display on the common display unit 74 is a count-up display (S6: YES), the count-up function is stopped (S9). After the count-up function is stopped, the process returns to step S1, and the subsequent determinations are repeated.

[0117] If the count-up key 644 has not been pressed (S5: NO), it is determined whether or not a waiting time (e.g., 10 seconds) has elapsed since the display on the common display unit 74 was switched (S10). If the waiting time has not elapsed (S10: NO), the process returns to step S1, and the subsequent determinations are repeated.

[0118] If the standby time has elapsed (S10: YES), it is determined whether the display on the common display unit 74 is a count-up display (S11). If the display on the common display unit 74 is not a count-up display (S11: NO), that is, if the display on the common display unit 74 is a count-down display, the heating source corresponding to the currently displayed count-down display is stored in the memory unit 85 as previous display information (S12). Then, the count-down display on the common display unit 74 is switched to a count-up display (S13). After the display on the count display unit 741 has been switched, the process returns to step S1, and the subsequent determinations are repeated.

[0119] On the other hand, if the display on the common display section 74 is a count-up display (S11: YES), the count-up display continues (S14), and the process returns to step S1 and the subsequent determinations are repeated.

[0120] As described above, in the cooking device 100 of the present embodiment, when the count-up function and the count-down function are performed simultaneously, the display of the count-up function is prioritized over the display of the count-down function on the common display unit 74. Specifically, when a preset standby time has elapsed, the display of the common display unit 74 is switched to the count-up function. Furthermore, in the cooking device 100 of the present embodiment, when count-down functions for multiple heat sources are performed simultaneously, the display of the heat source corresponding to the count-down function displayed immediately before switching to the count-up display is prioritized over the displays of the other heat sources. Specifically, the heat source corresponding to the count-down function displayed immediately before switching to the count-up display is stored as previously displayed information, and when switching to the count-down display, the count-down display of the heat source stored as previously displayed information is displayed preferentially. In this way, by setting and switching the display priority on the common display unit 74, it is possible to standardize the display for multiple functions and multiple heat sources. This reduces the number of display units in the cooking device 100, allowing the device to be compact while maintaining its multifunctionality.

[0121] Embodiment 2 A second embodiment will be described. The cooking device 100 of the second embodiment differs from the first embodiment in the priority of the displays on the common display unit 74. Specifically, in this embodiment, the priority of the count-up display is set higher than the priority of the count-down display, and in the count-down display, the priority of the display of the heating source with the shortest remaining time is set higher than the priority of the displays of the other heating sources. The configuration of the cooking device 100 and other controls are the same as those of the first embodiment.

[0122] 22 is a diagram showing how the display of the common display unit 74 changes when the countdown function and the countup function are simultaneously performed in embodiment 2. The following describes an example in which the countdown function for the right heating port 20R, the countup function, and the countdown function for the central heating port 20C are set in this order. Note that it is assumed here that the right heating unit 3R and the central heating unit 3C are already driven.

[0123] The procedure for setting the countdown function of the right heating port 20R is the same as that of (1) Setting the countdown function (single) in embodiment 1, and the display on the common display unit 74 is the same as that in Fig. 17. When the setting of the countdown function for the right heating port 20R is confirmed and the countdown function starts, the display on the count display unit 741 changes from flashing to lit, as shown in Fig. 22(e). Meanwhile, the display on the countdown display unit 742 remains flashing.

[0124] When the count-up key 644 is pressed while the count-down function of the right heating port 20R is being performed, the count-up function is selected. In this case, the remaining time continues to be measured in the currently performed count-down function, and the elapsed time starts to be measured in the count-up function.

[0125] Then, the common display unit 74 is switched to a count-up display. Specifically, as shown in Fig. 22(f), the elapsed time in the count-up function is displayed on the count display unit 741, and the LED of the count-up display unit 743 flashes. In addition, the right lamp 742R corresponding to the right heating port 20R for which the count-down function is being performed is lit.

[0126] 22(f), when the countdown key 641 is pressed, the common display unit 74 switches to the countdown display. When switching to the countdown display, the display control unit 82 compares the remaining time of each heating source that is currently performing the countdown function. Then, the display control unit 82 prioritizes and displays on the count display unit 741 the countdown display of the heating source with the shortest remaining time among the multiple heating sources.

[0127] In this case, since only the countdown function of the right heating port 20R is being performed, the display of the count display unit 741 is switched to display the countdown for the right heating port 20R. Here, as shown in FIG. 22(g), the count display unit 741 displays the remaining time for the countdown function for the right heating port 20R. In addition, the right lamp 742R of the countdown display unit 742 flashes, and the flashing of the count-up display unit 743 is changed to a lit state. In this case, measurement of the remaining time for the currently performed countdown function and measurement of the elapsed time for the count-up function continue.

[0128] When the countdown key 641 is pressed in the state shown in Figure 22(g), the countdown function for the central heating port 20C is selected. When the countdown function for the central heating port 20C is selected, the common display unit 74 switches to the display shown in Figure 22(h). In detail, the central lamp 742C corresponding to the central heating port 20C on the countdown display unit 742 flashes, and the count by the countdown function of the central heating port 20C is displayed on the count display unit 741. Here, because the central heating unit 3C is driven, a preset default time (for example, 10 minutes) is displayed on the count display unit 741. At this point, the setting of the countdown function for the central heating port 20C has not been confirmed, so the display on the count display unit 741 is flashing.

[0129] When minus key 642 and plus key 643 are pressed in the state shown in Figure 22(h), the time remaining until the countdown function expires (heating time tc) is set. For example, each time minus key 642 is pressed, the time displayed in count display unit 741 decreases by one minute, and each time plus key 643 is pressed, the time displayed in count display unit 741 increases by one minute. Figure 22(i) shows a state in which minus key 642 is pressed three times from a state in which the set time is 10 minutes, and the heating time tc is set to 7 minutes. In this case, the setting has not been confirmed either, so the displays in count display unit 741 and countdown display unit 742 are flashing.

[0130] When the heating time tc has been set and a standby time (e.g., 3 seconds) has elapsed, the setting of the countdown function for the central heating port 20C is confirmed and the countdown function is started. When the countdown function is started, as shown in FIG. 22(j), the display on the count display unit 741 changes from flashing to lit, and the remaining time displayed on the count display unit 741 is changed according to the timing result by the timing unit 84. Meanwhile, the central lamp 742C of the countdown display unit 742 continues to flash. In addition, the right lamp 742R of the countdown display unit 742 corresponding to the currently operating right heating port 20R and the count-up display unit 743 continue to be lit.

[0131] In the state shown in FIG. 22(j), when a standby time (e.g., 10 seconds) has elapsed, the common display unit 74 switches to a count-up display. This is because the count-up function is set to have a higher priority than the count-down function. In this case, as shown in FIG. 22(k), the time being counted by the count-up function is displayed on the count display unit 741, and the LED of the count-up display unit 743 flashes. In addition, the right lamp 742R and the center lamp 742C corresponding to the right heating port 20R and the center heating port 20C, for which the count-down function is being performed, are lit.

[0132] When the countdown key 641 is pressed in the state shown in FIG. 22(k), the common display unit 74 switches to countdown display. When switching to countdown display, the remaining time of each heat source currently performing the countdown function is compared, and the time of the countdown function of the heat source with the shortest remaining time is displayed preferentially on the count display unit 741. Here, if the remaining time of the countdown function of the right heating port 20R is 2 minutes and the remaining time of the countdown function of the central heating port 20C is 6 minutes, the common display unit 74 switches to the countdown display of the right heating port 20R with the shortest remaining time. More specifically, as shown in FIG. 22(l), the remaining time of the countdown function for the right heating port 20R is displayed on the count display unit 741. In addition, the right lamp 742R of the countdown display unit 742 flashes, the central lamp 742C is lit, and the count-up display unit 743 changes from flashing to lit.

[0133] Fig. 23 is a flowchart showing the flow of control of common display unit 74 when the countdown function and the countup function are performed simultaneously in embodiment 2. The flowchart in Fig. 23 is performed by display control unit 82 of control unit 8 when the main power supply of cooking appliance 100 is turned on and the countdown function and the countup function for multiple heating sources are performed simultaneously, and ends when cooking appliance 100 is powered off.

[0134] First, it is determined whether the countdown key 641 has been pressed (S101). If the countdown key 641 has been pressed (S101: YES), it is determined whether the display on the common display unit 74 is a count-up display (S102). If the display on the common display unit 74 is not a count-up display (S102: NO), that is, if the display on the common display unit 74 is a countdown display, the display on the common display unit 74 is switched to a countdown display for the heating source that is next selected on the toggle (S103). After the display on the count display unit 741 has been switched, the process returns to step S101, and the subsequent determinations are repeated.

[0135] If the display on common display unit 74 is a count-up display (S102: YES), the count-up display on common display unit 74 is switched to a count-down display for the heating source with the shortest remaining time in the count-down function (S104). After the display on count display unit 741 is switched, the process returns to step S101, and the subsequent determinations are repeated.

[0136] If the count down key 641 has not been pressed (S101: NO), it is determined whether the count up key 644 has been pressed (S105). If the count up key 644 has been pressed (S105: YES), it is determined whether the display on the common display unit 74 is a count up display (S106). If the display on the common display unit 74 is not a count up display (S106: NO), that is, if the display on the common display unit 74 is a count down display, the count down display on the common display unit 74 is switched to a count up display (S107). After the display on the count display unit 741 has been switched, the process returns to step S101, and the subsequent determinations are repeated.

[0137] On the other hand, if the display on the common display unit 74 is a count-up display (S106: YES), the count-up function is stopped (S108). After the count-up function is stopped, the process returns to step S101, and the subsequent determinations are repeated.

[0138] If the count-up key 644 has not been pressed (S105: NO), it is determined whether or not a waiting time (e.g., 10 seconds) has elapsed since the display on the common display unit 74 was switched (S109). If the waiting time has not elapsed (S109: NO), the process returns to step S101, and the subsequent determinations are repeated.

[0139] If the standby time has elapsed (S109: YES), it is determined whether the display on the common display unit 74 is a count-up display (S110). If the display on the common display unit 74 is not a count-up display (S110: NO), that is, if the display on the common display unit 74 is a count-down display, the count-down display on the common display unit 74 is switched to a count-up display (S111). After the display on the count display unit 741 has been switched, the process returns to step S101, and the subsequent determinations are repeated.

[0140] On the other hand, if the display on the common display unit 74 is a count-up display (S110: YES), the count-up display continues (S112), and the process returns to step S101 and the subsequent determinations are repeated.

[0141] As described above, in the cooking device 100 of this embodiment, when the count-up function and the count-down function are performed simultaneously, the display of the count-up function is prioritized over the display of the count-down function on the common display unit 74. Specifically, when a preset standby time has elapsed, the display of the common display unit 74 is switched to the count-up function display. Furthermore, in the cooking device 100 of this embodiment, when the count-down functions for multiple heat sources are performed simultaneously, the display of the heat source with the shortest remaining time in the count-down function is prioritized over the displays of the other heat sources. More specifically, when switching to the count-down display, the remaining times of the count-down functions for the heat sources currently performing the count-down function are compared, and the count-down display of the heat source with the shortest remaining time is displayed preferentially. In this way, by setting and switching the display priority on the common display unit 74, it is possible to standardize the displays for multiple functions and multiple heat sources.

[0142] Embodiment 3 A third embodiment will be described. The cooking device 100 of the third embodiment differs from the first embodiment in the priority of the display on the common display unit 74. More specifically, in this embodiment, the priority of the count-up display is set higher than the priority of the count-down display, and in the count-down display, the priority of the display of a preset heating source that is always the same (a fixed heating source, described later) is set higher than the priority of the display of other heating sources. The configuration of the cooking device 100 and other controls are the same as those of the first embodiment.

[0143] 24 is a diagram showing how the display of the common display unit 74 changes when the countdown function and the countup function are simultaneously performed in embodiment 3. The following describes an example in which the countdown function for the right heating port 20R, the countup function, and the countdown function for the central heating port 20C are set in this order. Note that it is assumed here that the right heating unit 3R and the central heating unit 3C are already driven.

[0144] The procedure for setting the countdown function of the right heating port 20R is the same as that of (1) Setting the countdown function (single) in embodiment 1, and the display on the common display unit 74 is the same as that in Fig. 17. When the setting of the countdown function for the right heating port 20R is confirmed and the countdown function starts, the display on the count display unit 741 changes from flashing to lit, as shown in Fig. 24(e). Meanwhile, the display on the countdown display unit 742 remains flashing.

[0145] When the count-up key 644 is pressed while the count-down function of the right heating port 20R is being performed, the count-up function is selected. In this case, the remaining time continues to be measured in the currently performed count-down function, and the elapsed time starts to be measured in the count-up function.

[0146] Then, the common display unit 74 is switched to a count-up display. Specifically, as shown in Fig. 24(f), the elapsed time in the count-up function is displayed on the count display unit 741, and the LED of the count-up display unit 743 flashes. In addition, the right lamp 742R corresponding to the right heating port 20R for which the count-down function is being performed is lit.

[0147] When the countdown key 641 is pressed in the state shown in Figure 24(f), the common display unit 74 switches to a countdown display. When switching to the countdown display, the display control unit 82 gives priority to the countdown display of the fixed heat source and displays it on the count display unit 741. The fixed heat source is one of multiple heat sources, and is set in advance and stored in the memory unit 85. The following describes an example in which the left heating port 20L is set as the fixed heat source.

[0148] When the fixed heating source is the left heating port 20L, the common display unit 74 switches to displaying a countdown for the left heating port 20L. Here, as shown in FIG. 24(g), the left lamp 742L corresponding to the left heating port 20L on the countdown display unit 742 flashes, and the count display unit 741 displays the remaining time for the countdown function of the left heating port 20L. In this example, because the left heating unit 3L is not driven, the count display unit 741 displays "--," indicating that the countdown function cannot be set. Also, at this time, the right lamp 742R on the countdown display unit 742 continues to light, and the count-up display unit 743 changes from flashing to lit. In this case, the remaining time for the currently running countdown function and the elapsed time for the count-up function continue to be measured.

[0149] When the countdown key 641 is pressed in the state shown in FIG. 24(g), the display on the common display unit 74 is switched to displaying the countdown for the right heating port 20R. Here, as shown in FIG. 24(h), the count display unit 741 displays the remaining time in the countdown function for the right heating port 20R. In addition, the left lamp 742L of the countdown display unit 742 is turned off, the right lamp 742R flashes, and the count-up display unit 743 remains lit. In this case, measurement of the remaining time in the currently running countdown function and measurement of the elapsed time in the count-up function continue.

[0150] When the countdown key 641 is pressed in the state shown in Figure 24(h), the countdown function for the central heating port 20C is selected. When the countdown function for the central heating port 20C is selected, the common display unit 74 switches to the display shown in Figure 24(i). In detail, the central lamp 742C corresponding to the central heating port 20C on the countdown display unit 742 flashes, and the remaining time for the countdown function of the central heating port 20C is displayed on the count display unit 741. Here, because the central heating unit 3C is driven, a preset default time (for example, 10 minutes) is displayed on the count display unit 741. At this point, the setting for the countdown function for the central heating port 20C has not been confirmed, so the display on the count display unit 741 is flashing.

[0151] In the state shown in Figure 24(i), pressing minus key 642 and plus key 643 sets the time remaining until the countdown function expires (heating time tc). For example, each time minus key 642 is pressed, the time displayed in count display unit 741 decreases by one minute, and each time plus key 643 is pressed, the time displayed in count display unit 741 increases by one minute. Figure 24(j) shows a state in which minus key 642 has been pressed three times, setting the heating time tc from the default of 10 minutes to 7 minutes. In this case, the setting has not yet been confirmed, so the display in count display unit 741 is flashing.

[0152] When the heating time tc has been set and a standby time (e.g., 3 seconds) has elapsed, the setting of the countdown function for the central heating port 20C is confirmed and the countdown function is started. When the countdown function is started, as shown in FIG. 22(k), the display on the count display unit 741 changes from flashing to lit, and the remaining time displayed on the count display unit 741 is changed according to the timing result by the timing unit 84. Meanwhile, the central lamp 742C of the countdown display unit 742 continues to flash. In addition, the right lamp 742R of the countdown display unit 742 corresponding to the currently operating right heating port 20R and the count-up display unit 743 continue to be lit.

[0153] In the state shown in FIG. 24(k), when a standby time (e.g., 10 seconds) has elapsed, the common display unit 74 switches to a count-up display. This is because the count-up function has a higher priority than the count-down function. In this case, as shown in FIG. 24(l), the count display unit 741 displays the elapsed time for the count-up function, and the LED of the count-up display unit 743 flashes. In addition, the right lamp 742R and the center lamp 742C corresponding to the right heating port 20R and the center heating port 20C, which are performing the count-down function, are lit.

[0154] When the countdown key 641 is pressed in the state shown in FIG. 24(l), the common display unit 74 switches to the countdown display. When the countdown display is switched to, the countdown display for the left heating port 20L, which is the fixed heating source, is displayed preferentially on the common display unit 74. In more detail, as shown in FIG. 24(m), the left lamp 742L corresponding to the left heating port 20L on the countdown display unit 742 flashes, and the count display unit 741 displays "--", indicating that the countdown function cannot be set. Also, at this time, the right lamp 742R and center lamp 742C on the countdown display unit 742 continue to light, and the flashing count-up display unit 743 changes to a lit state.

[0155] When the countdown key 641 is pressed in the state shown in Fig. 24(m), the display on the common display unit 74 is switched to a countdown display for the right heating port 20R. Here, as shown in Fig. 24(n), the remaining time in the countdown function for the right heating port 20R is displayed on the count display unit 741. In addition, the left lamp 742L of the countdown display unit 742 is turned off, the right lamp 742R flashes, and the center lamp 742C and the count-up display unit 743 remain lit.

[0156] Fig. 25 is a flowchart showing the flow of control by common display unit 74 when the countdown function and the countup function are performed simultaneously in embodiment 3. The flowchart in Fig. 25 is performed by display control unit 82 of control unit 8 when the main power supply of cooking appliance 100 is turned on and the countdown function and the countup function for at least one heat source are performed simultaneously, and ends when cooking appliance 100 is powered off.

[0157] First, it is determined whether the countdown key 641 has been pressed (S201). If the countdown key 641 has been pressed (S201: YES), it is determined whether the display on the common display unit 74 is a count-up display (S202). If the display on the common display unit 74 is not a count-up display (S202: NO), that is, if the display on the common display unit 74 is a countdown display, the display on the common display unit 74 is switched to a countdown display for the heating source that is next selected on the toggle (S203). After the display on the count display unit 741 has been switched, the process returns to step S201, and the subsequent determinations are repeated.

[0158] If the display on common display unit 74 is a count-up display (S202: YES), the count-up display on common display unit 74 is switched to a count-down display of the heat source set as the fixed heat source (S204). After the display on count display unit 741 is switched, the process returns to step S201, and the subsequent determinations are repeated.

[0159] If the count down key 641 has not been pressed (S201: NO), it is determined whether the count up key 644 has been pressed (S205). The subsequent processing of steps S205 to S212 is the same as the processing of steps S105 to S112 in the second embodiment, and therefore a description thereof will be omitted.

[0160] As described above, in the cooking device 100 of this embodiment, when the count-up function and the count-down function are performed simultaneously, the display of the count-up function is prioritized over the display of the count-down function in the display on the common display unit 74. Specifically, when the standby time has elapsed, the display on the common display unit 74 is switched to the display of the count-up function. Furthermore, in the cooking device 100 of this embodiment, when the count-down functions for multiple heat sources are performed simultaneously, the display of a preset fixed heat source is prioritized over the displays of the other heat sources. In this way, by setting and switching the display priority on the common display unit 74, it is possible to standardize the displays for multiple functions and multiple heat sources.

[0161] Embodiment 4 A fourth embodiment will be described. Cooking device 100 of the fourth embodiment differs from that of the first embodiment in the method of switching the display on common display unit 74. The configuration of cooking device 100 and other controls are the same as those of the first embodiment.

[0162] In the cooking appliances 100 of the first to third embodiments described above, the count-up display is prioritized over the count-down display, and the display of the count display unit 741 is switched to the count-up display after the standby time (for example, 10 seconds) has elapsed. In addition, in the cooking appliances 100 of the present embodiment, when the elapsed time of the count-up function being executed or the remaining time of the count-down function reaches the threshold time th, the count display unit 741 is switched to the display of the function that has reached the threshold time th.

[0163] When the elapsed time of the count-up function or the remaining time of the count-down function reaches the threshold time th, this refers to when the elapsed time is equal to or greater than the threshold time th in the case of the count-up function, and when the remaining time is equal to or less than the threshold time th in the case of the count-down function. The threshold time th is, for example, 3 minutes. The threshold time th is a fixed value or a value arbitrarily set by the user and is stored in the memory unit 85. In the following description, the display when the elapsed time of the count-up function or the remaining time of the count-down function reaches the threshold time th is referred to as a "pre-expiration display." In other words, the pre-expiration display is a count-up display when the elapsed time is equal to or greater than the threshold time th, or a count-down display for either heating source when the remaining time is equal to or less than the threshold time th.

[0164] Fig. 26 is a flowchart showing the flow of switching to pre-expiration display on the common display unit 74 in embodiment 4. The processing shown in Fig. 26 is performed by the display control unit 82 at any timing during execution of the flowchart of Fig. 21, Fig. 23, or Fig. 25 in embodiments 1 to 3.

[0165] First, it is determined whether the elapsed time of the count-up function or the remaining time of the count-down function that is being executed has reached a threshold time th (S301). Here, it is determined whether the elapsed time of the count-up function is equal to or greater than the threshold time th, or whether the remaining time of the count-down function is equal to or less than the threshold time th. If the elapsed time of the count-up function or the remaining time of the count-down function has not reached the threshold time th (S301: NO), the process in the flowchart of FIG. 21, FIG. 23, or FIG. 25 is executed.

[0166] When the elapsed time of the count-up function or the remaining time of the count-down function reaches the threshold time th (S301: YES), it is determined whether the display on the common display unit 74 is in the pre-expiration display (S302). When the display on the common display unit 74 is not in the pre-expiration display (S302: NO), that is, when the threshold time th has been reached for the first time, the display on the common display unit 74 is switched to the pre-expiration display (S303). Specifically, the common display unit 74 is switched to a count-up display when the elapsed time is equal to or greater than the threshold time th, or a count-down display for any heating source when the remaining time is equal to or less than the threshold time th. After switching the display on the count display unit 741, the process returns to the initial process in the flowchart of FIG. 21, FIG. 23, or FIG. 25, and the subsequent processes are carried out.

[0167] If the display on the common display unit 74 is the pre-expiration display (S302: YES), that is, if the threshold time th has already been reached, the display on the common display unit 74 continues to be the pre-expiration display (S304). After that, the process returns to the initial process in the flowchart of FIG. 21, FIG. 23, or FIG. 25, and the subsequent processes are carried out.

[0168] As described above, in the cooking device 100 of the present embodiment, when a plurality of functions using a plurality of heat sources are performed simultaneously, the priority of the display on the common display unit 74 is set in the same manner as in the first to third embodiments, with the exception that priority is given to the display of the count when the threshold time th is reached. This makes it possible to standardize the display for a plurality of functions and a plurality of heat sources, and also makes it possible to notify the user that the count is about to expire.

[0169] Embodiment 5. A fifth embodiment will be described. Cooking device 100 of the fifth embodiment differs from that of the first embodiment in the display on common display unit 74. The configuration of cooking device 100 and other controls are the same as those of the first embodiment.

[0170] In the cooking appliance 100 of this embodiment, the common display unit 74 displays information about errors in the cooking appliance 100 in addition to a countdown display and a countup display. Errors that occur in the cooking appliance 100 include a "load error" when an error occurs in only some of the heating units, and a "system error" when an error occurs in the entire cooking appliance 100. In the case of a load error, the operation of the heating unit in which the error occurred is stopped, and a warning is displayed if the user's usage is improper, but the operation of heating units in which no error has occurred continues. In the case of a system error, an error has occurred in the control of the cooking appliance 100 itself, so the operation of all heating units is stopped.

[0171] FIG. 27 is an example of a display on the common display unit 74 when a load error occurs in the fifth embodiment. FIG. 27 shows an example of a display when some kind of malfunction occurs in the right heating unit 3R. When an error occurs in any heating unit, the display control unit 82 displays an error code indicating the type of error that has occurred on the count display unit 741. The error code is made up of a combination of alphanumeric characters, and in the example of FIG. 27, the error code "U5A" is displayed on the count display unit 741. In addition, by flashing the displayed error code, the user can be notified that an error has occurred in an easy-to-understand manner.

[0172] Furthermore, the display control unit 82 blinks the lamp corresponding to the heating unit (heat source) in which the error has occurred in the countdown display unit 742. In this case, the right lamp 742R corresponding to the right heating port 20R blinks.

[0173] 28 shows an example of the display on the common display unit 74 when a system error occurs in the fifth embodiment. In the case of a system error, the display control unit 82 also displays an error code indicating the type of error that has occurred on the count display unit 741. In the example of FIG. 28, the error code "E8C" is displayed on the count display unit 741. Furthermore, by flashing the displayed error code, the user can be notified that an error has occurred in an easily understandable manner.

[0174] Furthermore, the display control unit 82 blinks the lamp corresponding to the heating unit in which the error has occurred in the countdown display unit 742. In this case, the left lamp 742L, right lamp 742R, center lamp 742C, and heating chamber lamp 742H corresponding to all heating units (heat sources) are blinked.

[0175] Next, a display method of the common display unit 74 in this embodiment will be described in detail. In the cooking device 100 of this embodiment, when a load error or a system error occurs, the display of the common display unit 74 is switched to displaying error information (hereinafter referred to as "error display"). The error display is set to have a higher display priority than the count-up function.

[0176] FIG. 29 is a diagram showing how the display of the common display unit 74 changes when an error occurs in the fifth embodiment. FIG. 29 shows an example of a case where a load error occurs. Also, FIG. 29 illustrates an example where all heating units of the cooking appliance 100 are driven, heating is performed using all heat sources, and the countdown and countup functions for all heat sources are performed. In this case, the display of the common display unit 74 is as shown in FIG. 29(a). Specifically, a countup display is displayed on the count display unit 741, and the LED of the countup display unit 743 is flashing. Furthermore, the left lamp 742L, right lamp 742R, center lamp 742C, and heating chamber lamp 742H of the countdown display unit 742 corresponding to the left heating port 20L, right heating port 20R, center heating port 20C, and heating chamber 5, for which the countdown function is being performed, are lit.

[0177] In the state shown in FIG. 29(a), if an error (load error) occurs only in the right heating unit 3R, the display on the common display unit 74 switches to display an error for the right heating port 20R. In this case, the display on the count display unit 741 becomes as shown in FIG. 29(b). Specifically, the count display unit 741 displays the error code "U5," and the right lamp 742R corresponding to the right heating port 20R where the error occurred on the countdown display unit 742 flashes. In this case, the right lamp 742R flashes at a different flashing rate than when displaying the countdown function. This makes it possible to distinguish whether an error has occurred or whether the countdown function is set. The left lamp 742L, center lamp 742C, and heating chamber lamp 742H corresponding to the left heating port 20L, center heating port 20C, and heating chamber 5, respectively, for which the countdown function is being performed, continue to light. The count-up display unit 743 switches from flashing to lighting.

[0178] 29 shows the display switching to an error display when the display on the common display unit 74 is a count-up display, but the display switching to an error display can also be performed when the display on the common display unit 74 is a count-down display. At this time, the heating control unit 81 also stops the operation of the right heating unit 3R for safety reasons. Count-up and count-down functions currently being performed by heat sources other than the right heating port 20R continue to count.

[0179] 29(b), when the countdown key 641 is pressed, the common display unit 74 switches to a countdown display. When switching to a countdown display, the display control unit 82 determines which heat source is to be given priority for display based on one of the priorities described in the first to third embodiments, and displays the countdown display of that heat source on the count display unit 741.

[0180] In the example of FIG. 29(c), the display on the common display unit 74 has been switched to a countdown display for the central heating port 20C. In this case, the remaining time for the countdown function for the central heating port 20C is displayed on the count display unit 741. Furthermore, the central lamp 742C of the countdown display unit 742 flashes, and the left lamp 742L and heating chamber lamp 742H remain lit, and the count-up display unit 743 remains lit. Furthermore, the measurement of the remaining time for the currently running countdown function and the measurement of the elapsed time for the count-up function continue. Furthermore, the right lamp 742R continues to flash at a different flashing rate than the central lamp 742C.

[0181] In the state shown in FIG. 29(c), if a preset waiting time (e.g., one minute) has elapsed while the error has not been cleared, the display on the common display unit 74 is switched to an error display. In this case, the display on the common display unit 74 becomes as shown in FIG. 29(b). By switching to the error display after the waiting time has elapsed, the user is notified that an error has occurred so as not to forget, and the state in which the error has not been cleared can be prevented from continuing. At this time, the central heating port 20C may be stored in the memory unit 85 as the previously displayed information.

[0182] At this time, if the countdown function of any of the heating sources has expired, the heating source has been stopped, or the count-up function has expired or been stopped, the lamp of the associated countdown display unit 742 or count-up display unit 743 will be turned off.

[0183] When the count-up key 644 is pressed in the state shown in Figure 29(b), the common display unit 74 switches to the count-up display. More specifically, as shown in Figure 29(d), the count display unit 741 displays the elapsed time by the count-up function, and the LED of the count-up display unit 743 flashes. In addition, the left lamp 742L, center lamp 742C, and heating chamber lamp 742H of the count-down display unit 742 continue to light up. In addition, the right lamp 742R continues to flash at a different flashing rate than the count-up display unit 743.

[0184] 29(d), if a standby time (for example, one minute) has elapsed while the error has not been cleared, the display on the common display unit 74 will switch to an error display. In this case, the display on the common display unit 74 will be as shown in FIG. 29(b). At this time, if the countdown function of any of the heat sources has expired, the heat source has been stopped, or the count-up function has expired or been stopped, the lamp on the associated countdown display unit 742 and the count-up display unit 743 will be turned off.

[0185] 29 has been described regarding the switching of the common display unit 74 when a load error occurs, but when a system error occurs, all heating sources are stopped and the countdown function is also stopped. Therefore, when a system error occurs, the common display unit 74 only switches to a count-up display using the count-up key 644, i.e., only switches the display from FIG. 29(b) to FIG. 29(d) and from FIG. 29(d) to FIG. 29(b).

[0186] Fig. 30 is a flowchart showing the flow of switching to an error display on the common display unit 74 in embodiment 5. The processing shown in Fig. 30 is performed by the display control unit 82 at any timing during the execution of the flowchart of Fig. 21, Fig. 23, or Fig. 25 in embodiments 1 to 3.

[0187] First, it is determined whether an error has occurred (S401). If no error has occurred (S401: NO), the process in the flowchart of Figure 21, 23, or 25 is carried out. If an error has occurred (S401: YES), the display on the common display unit 74 is switched to an error display (S402).

[0188] Then, it is determined whether the error that has occurred is a load error (S403). If the error that has occurred is not a load error (S403: NO), that is, if it is a system error, it is determined whether the count-up key 644 has been pressed (S404). If the count-up key 644 has not been pressed (S404: NO), the error display continues (S405), and the process returns to step S401. On the other hand, if the count-up key 644 has been pressed (S404: YES), the display on the common display unit 74 is switched to a count-up display (S406), and the process proceeds to step S412.

[0189] On the other hand, if the error that has occurred is a load error (S403: YES), it is determined whether or not countdown key 641 has been pressed (S407). If countdown key 641 has been pressed (S407: YES), the display on common display unit 74 is switched to a countdown display (S408), and the process proceeds to step S412. Note that the countdown display displayed in step S408 is the countdown display of the heat source selected based on the priority described in any one of the first to third embodiments.

[0190] If the count down key 641 has not been pressed (S407: NO), it is determined whether the count up key 644 has been pressed (S409). If the count up key 644 has not been pressed (S409: NO), the error display continues (S410), and the process returns to step S401. On the other hand, if the count up key 644 has been pressed (S409: YES), the display on the common display unit 74 is switched to a count up display (S411), and the process proceeds to step S412.

[0191] In step S412, it is determined whether a waiting time (for example, 10 seconds) has elapsed since the common display unit 74 was switched from the error display to the count-up display or count-down display (S412). This is to return the display of the count display unit 741 to the error display after the waiting time has elapsed. If the waiting time has not elapsed (S412: NO), the process waits until the waiting time has elapsed. If the waiting time has elapsed (S412: YES), the display of the common display unit 74 is switched to the error display (S413), and the process returns to step S401.

[0192] As described above, in the cooking device 100 of the present embodiment, when a plurality of functions using a plurality of heat sources are performed simultaneously, the priority of the display on the common display unit 74 is set in the same manner as in the first to fourth embodiments, and as an exception, when an error occurs, the error display is given priority. This makes it possible to standardize the display for a plurality of functions and a plurality of heat sources, and also makes it possible to quickly notify the user of the occurrence of an error.

[0193] Embodiment 6 A sixth embodiment will be described. Cooking device 100 of the sixth embodiment differs from that of the first embodiment in the display on common display unit 74. The configuration of cooking device 100 and other controls are the same as those of the first embodiment.

[0194] Cooking device 100 of the present embodiment displays error information of cooking device 100 in addition to a countdown display and a count-up display on common display unit 74, as in the fifth embodiment. The content of the error display on common display unit 74 is the same as that in FIGS. 27 to 29 of the fifth embodiment, but the present embodiment differs from the fifth embodiment in the timing of switching to the error display. Specifically, in the fifth embodiment, if a countdown display or a count-up display is displayed on common display unit 74 after an error occurs and the error has not been resolved, the display on common display unit 74 is switched to the error display after a waiting time (e.g., 10 seconds) has elapsed. In addition, display control unit 82 of the present embodiment switches the display on common display unit 74 to the error display when a countdown display is displayed on common display unit 74 after an error occurs and the error has not been resolved, and an operation to switch common display unit 74 to the countdown display or the count-up display has elapsed and within the waiting time (e.g., 3 seconds) (i.e., when countdown key 641 or count-up key 644 is pressed). Alternatively, in this embodiment, when a count-up display is displayed on the common display unit 74 after an error occurs and the error has not been cleared, and an operation is performed to switch the common display unit 74 to a count-down display or a count-up display within the waiting time (for example, 10 seconds), the display control unit 82 switches the display on the common display unit 74 to an error display.

[0195] Fig. 31 is a flowchart showing the flow of switching to an error display on the common display unit 74 in embodiment 6. The processing in steps S401 to S412 in the flowchart of Fig. 31 is the same as in embodiment 5, so only the differences will be explained.

[0196] If the error that has occurred is not a load error (S403: NO) and the count-up key 644 is pressed (S404: YES), the display on the common display unit 74 is switched from the error display to the count-up display (S406), and the process proceeds to step S422. If the error that has occurred is a load error (S403: YES) and the count-down key 641 is pressed (S407: YES), the display on the common display unit 74 is switched from the error display to the count-down display (S408). Then, it is determined whether a switching wait time (e.g., 3 seconds) has elapsed (S420).

[0197] If the switching wait time has not elapsed (S420: NO), it is determined whether the countdown key 641 or the countup key 644 has been pressed (S421). Here, if neither key has been pressed (S421: NO), the process returns to step S420. On the other hand, if the countdown key 641 has been pressed (S421: YES (countdown key)), the process returns to step S408, and the countdown display for the next heating source is switched to. On the other hand, if the countup key 644 has been pressed (S421: YES (countup key)), the process proceeds to step S424, the display on the common display unit 74 is switched to an error display (S424), and the process returns to step S401.

[0198] If the switching wait time has elapsed (S420: YES), the process proceeds to step S422. If the count down key 641 has not been pressed (S407: NO) but the count up key 644 has been pressed (S409: YES), the display on the common display unit 74 is switched from an error display to a count up display (S411), and the process proceeds to step S422.

[0199] In step S422, it is determined whether the count down key 641 or the count up key 644 has been pressed (S422). If neither key has been pressed (S422: NO), the process proceeds to step S423. On the other hand, if the count down key 641 or the count up key 644 has been pressed (S422: YES), the display on the common display unit 74 is switched to an error display (S424), and the process returns to step S401.

[0200] In step S423, it is determined whether a waiting time (e.g., 10 seconds) has elapsed since the display on the common display unit 74 was switched from an error display to a count-up display or a count-down display (latest display) (S423). If the waiting time has not elapsed (S423: NO), the process returns to step S422. If the waiting time has elapsed (S423: YES), the display on the common display unit 74 is switched to an error display (S424), and the process returns to step S401.

[0201] As described above, in the cooking appliance 100 of the present embodiment, when multiple functions using multiple heat sources are performed simultaneously, the priority of the displays on the common display unit 74 is set in the same manner as in the first to fourth embodiments, with the exception that an error display is prioritized when an error occurs. This makes it possible to standardize the displays for multiple functions and multiple heat sources, and to quickly notify the user of the occurrence of an error. Furthermore, if an operation to switch to another display is performed again within the switching wait time after the error display has been switched to the countdown display and within the wait time, or within the wait time after the error display has been switched to the countup display, the display is switched to the error display, thereby re-awakening the user to the occurrence of an error.

[0202] Embodiment 7 A seventh embodiment will be described. The display on the common display unit 74 may be turned off (canceled) due to the expiration or stop of the countdown function and count-up function described in the first to sixth embodiments, the cancellation of an error that has occurred, etc. In the following description, the expiration or stop of the countdown function and count-up function, and the cancellation of an error that has occurred are referred to as "causes for cancellation." When a reason for cancellation occurs, it is necessary to switch the display related to the reason for cancellation on the common display unit 74 to another display. In the seventh embodiment, a method for setting the display to be switched to in this case will be described. The configuration and other controls of the cooking appliance 100 of this embodiment are the same as those of the first embodiment.

[0203] Fig. 32 is a diagram showing the destination of display switching when a reason for cancellation occurs in embodiment 7. As shown in Fig. 32, the display control unit 82 sets a priority depending on whether an error occurs when a reason for cancellation occurs, whether a count-up function is set, and whether a count-down function is set, and determines the destination of display switching on the common display unit 74 depending on the priority. Note that the priority in this embodiment is used as an identifier to distinguish the destination of display switching, and the priority numerical values ​​(P1 to P7, P81 to P84) described later do not indicate high or low priority.

[0204] Specifically, if an error occurs and neither the count-up nor count-down function is set, the priority is set to P1 and the display switches to an error message. If an error occurs and the count-up function is set but the count-down function is not set, the priority is set to P2 and the display switches to an error message. If an error occurs and the count-down function is set but the count-up function is not set, the priority is set to P3 and the display switches to an error message. If an error occurs and both the count-up and count-down functions are set, the priority is set to P4 and the display switches to an error message.

[0205] Furthermore, if no error occurs, the count-up function is set, and the count-down function is not set, the priority is set to P5, and the display switches to count-up. If no error occurs, and both the count-up and count-down functions are set, the priority is set to P6, and the display switches to count-up. If no error occurs, and neither the count-up nor count-down function is set, the priority is set to P7, and nothing is displayed on the common display unit 74.

[0206] Furthermore, if no error has occurred and the countdown function is set but the count-up function is not set, the priority is set according to the setting of the countdown function. Specifically, if the countdown function is set for a single heat source, the priority is set to P81, and the display switches to the countdown display for the single heat source. If the countdown function is set for multiple heat sources and one heat source is stored as previously displayed information, the priority is set to P82, and the display switches to the countdown display for the heat source stored as previously displayed information. If the countdown function is set for multiple heat sources and one heat source is set as a fixed heat source, the priority is set to P83, and the display switches to the countdown display for the fixed heat source. If the countdown function is set for multiple heat sources and neither P82 nor P83 applies, the priority is set to P84, and the display switches to the countdown display for the heat source with the shortest remaining time among the multiple heat sources.

[0207] 33 and 34 are flowcharts showing the flow of switching the display on the common display unit 74 when a reason for cancellation occurs in embodiment 7. The processing shown in Fig. 33 and 34 is performed by the display control unit 82 at any timing during the execution of the flowchart of Fig. 21, 23, or 25 in embodiments 1 to 3.

[0208] First, it is determined whether a reason for cancellation has occurred (S501). Here, it is determined that a reason for cancellation has occurred when the count-up function or count-down function displayed on the count display section 741 has expired or stopped, or when an error that has occurred has been resolved. If a reason for cancellation has not occurred (S501: NO), the process in the flowchart of FIG. 21, FIG. 23, or FIG. 25 is carried out.

[0209] If a cancellation event occurs (S501: YES), it is determined whether a waiting time (for example, 10 seconds) has elapsed since the cancellation event occurred (S502). If the waiting time has not elapsed (S502: NO), the process waits until the waiting time has elapsed. On the other hand, if the waiting time has elapsed (S502: YES), it is determined whether an error is occurring (S503).

[0210] If no error has occurred (S503: NO), it is determined whether the count-up function is set (S504). If the count-up function is set (S504: YES), it is determined whether the count-down function is set (S505). If the count-down function is not set (S505: NO), the priority is set to P5 (S506), and the process proceeds to step S524. If the count-down function is set (S505: YES), the priority is set to P6 (S507), and the process proceeds to step S524.

[0211] If the count-up function is not set (S504: NO), it is determined whether the count-down function is set (S508). If the count-down function is not set (S508: NO), the priority is set to P8 (S509), and the process proceeds to step S524. If the count-down function is set (S508: YES), the process proceeds to step S517 in FIG.

[0212] If an error has occurred (S503: YES), it is determined whether the count-up function is set (S510). If the count-up function is not set (S510: NO), it is determined whether the count-down function is set (S511). If the count-down function is not set (S511: NO), the priority is set to P1 (S512), and the process proceeds to step S524. If the count-down function is set (S511: YES), the priority is set to P3 (S513), and the process proceeds to step S524.

[0213] If the count-up function is set (S510: YES), it is determined whether the count-down function is set (S514). If the count-down function is not set (S514: NO), the priority is set to P2 (S515) and the process proceeds to step S524. If the count-down function is set (S514: YES), the priority is set to P4 (S516) and the process proceeds to step S524.

[0214] In step S517 of Fig. 34, it is determined whether the countdown function is set for multiple heat sources (S517). If the countdown function is not set for multiple heat sources (S517: NO), that is, if the countdown function is set for only a single heat source, the priority is set to P81 (S518), and the process proceeds to step S524 of Fig. 33. If the countdown function is set for multiple heat sources (S517: YES), it is determined whether there is a heat source stored as previously displayed information (S519).

[0215] If there is a heat source stored as previously displayed information (S519: YES), the priority is set to P82 (S520), and the process proceeds to step S524 in Figure 33. If there is no heat source stored as previously displayed information (S519: NO), it is determined whether there is a heat source set as a fixed heat source (S521). If there is a heat source set as a fixed heat source (S521: YES), the priority is set to P83 (S522), and the process proceeds to step S524 in Figure 33. If there is no heat source set as a fixed heat source (S521: NO), the priority is set to P84 (S523), and the process proceeds to step S524 in Figure 33.

[0216] In step S524 of FIG. 33, the display on the common display section 74 is switched in accordance with the set priorities P1 to P7 and P81 to P84 (S524).

[0217] As described above, in the cooking device 100 of the present embodiment, it is possible to set priorities for the display of multiple functions by multiple heating sources even when a reason for canceling the display of the common display unit 74 occurs. This makes it possible to standardize the display for multiple functions and multiple heating sources, and to perform display according to the situation.

[0218] The above is a description of the embodiments, but the above embodiments can be modified and combined. For example, in the above embodiments and modifications, the cooking device 100 is described as a built-in type installed in kitchen furniture such as a kitchen counter, but the cooking device 100 may be small and portable. Furthermore, the cooking device 100 is not limited to an induction cooking device equipped with a heating coil, and may be a cooking device in which at least one of the heating parts is constituted by a heater or a gas range.

[0219] Furthermore, the common display unit 74 may display other information such as overall information, caution information, or warning information about the cooking device 100. In this case, for example, when the limit setting key 652 of the power operation unit 65 is pressed and held for, for example, three seconds, a message indicating that the function to limit the heat source is being set may be displayed on the common display unit 74.

[0220] In the above embodiment, the display is changed by turning on, off, or blinking the LED of the display unit 7, but the display may also be changed by changing the color of the LED. For example, the LED of the common display unit 74 may be lit in red for an error display, and the LED of the common display unit 74 may be lit in green for a countdown display or a countup display. This allows for a more direct and easy-to-understand notification to the user.

[0221] Various aspects of the present disclosure are summarized below as appendices.

[0222] (Appendix 1) A plurality of heating units that heat the object to be heated; an operation unit for setting the heating of the heating unit; a display unit that displays the heating setting of the heating unit; a control unit that is set individually for each of the heating units and that performs a first function linked to the heating state of the heating unit and a second function independent of the first function; The heating cooker has a common display unit that, when the first function and the second function are performed simultaneously, switches between displaying a display related to the first function and a display related to the second function that is different from the display related to the first function according to priority. (Appendix 2) The first function is a countdown function for measuring the remaining time for a set heating time, the second function is a count-up function that measures an elapsed time from the start of the second function, The common display unit includes: a count display unit that switches between displaying the remaining time and the elapsed time; a countdown display unit that displays the heating unit that has the first function set; 2. The cooking device according to claim 1, further comprising: a count-up display unit that displays that the second function has been set. (Appendix 3) The heating cooker according to claim 1 or 2, wherein when the first function and the second function are being performed simultaneously and a display relating to the first function is displayed on the common display unit, the control unit switches the display on the common display unit from a display relating to the first function to a display relating to the second function after a predetermined waiting time has elapsed. (Appendix 4) A heating cooker as described in Appendix 1 or 2, wherein when the first function and the second function are performed simultaneously and the first function is set for multiple heating units, and when the control unit switches the display on the common display unit from a display regarding the second function to a display regarding the first function, the control unit displays on the common display unit the display regarding the first function for the heating unit that was previously displayed. (Appendix 5) The heating cooker according to claim 1 or 2, wherein when the first function and the second function are performed simultaneously and the first function is set for a plurality of the heating sections, and when the control section switches the display on the common display section from a display regarding the second function to a display regarding the first function, the control section displays on the common display section a display of the first function for the heating section among the plurality of heating sections that has the shortest remaining time. (Appendix 6) The heating cooker according to claim 1 or 2, wherein when the first function and the second function are performed simultaneously and the first function is set for a plurality of the heating sections, and when the control section switches the display on the common display section from a display regarding the second function to a display regarding the first function, the control section displays on the common display section a display of the first function for a heating section that has been previously set among the plurality of heating sections. (Appendix 7) A heating cooker as described in any one of Appendices 1 to 6, wherein when the first function is set for multiple heating units and the remaining time of any of the heating units becomes equal to or less than a threshold time, the control unit switches the display of the common display unit to a display regarding the first function for the heating unit whose remaining time has become equal to or less than the threshold time. (Appendix 8) The heating cooker according to any one of claims 1 to 7, wherein when the first function and the second function are performed simultaneously and an error occurs, the control unit switches the display of the common display unit to a display related to the error that has occurred. (Appendix 9) The cooking device of claim 8, wherein the control unit switches the display of the common display unit from a display regarding the error to a display regarding the first function or a display regarding the second function when a predetermined waiting time has elapsed. (Appendix 10) The cooking device according to claim 8 or 9, wherein the control unit switches the display of the common display unit from a display regarding the error to a display regarding the first function or a display regarding the second function, and if an operation to switch to a display regarding the first function or a display regarding the second function is performed within a predetermined waiting time, the control unit switches the display of the common display unit to a display regarding the error. [Explanation of symbols]

[0223] 1 Main body, 2 Top plate, 3C Central heating section, 3L Left heating section, 3R Right heating section, 4 Exhaust port cover, 5 Heating chamber, 6 Operation section, 7 Display section, 8 Control section, 9C Central inverter circuit, 9L Left inverter circuit, 9R Right inverter circuit, 11 First temperature measurement section, 12 Notification section, 20C Central heating port, 20L Left heating port, 20R Right heating port, 50 Heating door, 51 Upper radiant heating section, 52 Lower radiant heating section, 53 Second temperature measurement section, 61 Left operation section, 62 Right operation section, 63 Central operation section, 64 Common operation section, 65 Power operation section, 71 Left display section, 72 Right display section, 73 Central display section, 74 Common display section, 75 Power display section, 81 Heating control section, 82 Display control section, 83 Notification control section, 84 Timer section, 85 Memory unit, 100 cooking appliance, 200 kitchen furniture, 501 handle, 502 window, 503 open / close sensor, 611 left heating key, 612 menu selection key, 613 heat down key, 614 heat up key, 621 right heating key, 622 menu selection key, 623 heat down key, 624 heat up key, 631 center heating key, 632 heating chamber heating key, 633 menu selection key, 634 heat down key, 635 heat up key, 641 count down key, 642 minus key, 643 plus key, 644 count up key, 651 main power key, 652 limit setting key, 711 heat display unit, 712 menu display unit, 721 heat display unit, 722 menu display unit, 731 heat display unit, 732 menu display unit, 741 Count display unit, 742 countdown display unit, 742C center lamp, 742H heating chamber lamp, 742L left lamp, 742R right lamp, 743 count up display unit, 751 power lamp, 752 limit lamp, 753 first high temperature lamp, 754 second high temperature lamp.

Claims

1. A plurality of heating units that heat the object to be heated; an operation unit for setting the heating of the heating unit; a display unit that displays the heating setting of the heating unit; a control unit that is set individually for each of the heating units and that performs a first function linked to the heating state of the heating unit and a second function independent of the first function; The heating cooker has a common display unit that, when the first function and the second function are performed simultaneously, switches between displaying a display related to the first function and a display related to the second function that is different from the display related to the first function according to priority.

2. The first function is a countdown function for measuring the remaining time for a set heating time, the second function is a count-up function that measures an elapsed time from the start of the second function, The common display unit includes: a count display unit that switches between displaying the remaining time and the elapsed time; a countdown display unit that displays the heating unit that has the first function set; The cooking device according to claim 1 , further comprising a count-up display unit that displays that the second function has been set.

3. The heating cooker of claim 2, wherein when the first function and the second function are being performed simultaneously and a display relating to the first function is displayed on the common display unit, the control unit switches the display on the common display unit from a display relating to the first function to a display relating to the second function after a predetermined waiting time has elapsed.

4. The heating cooker of claim 2, wherein when the first function and the second function are performed simultaneously and the first function is set for a plurality of the heating units, and when the control unit switches the display on the common display unit from a display regarding the second function to a display regarding the first function, the control unit displays on the common display unit the display regarding the first function for the heating unit that was previously displayed.

5. 3. The heating cooker according to claim 2, wherein when the first function and the second function are performed simultaneously and the first function is set for a plurality of the heating units, and when the control unit switches the display of the common display unit from a display regarding the second function to a display regarding the first function, the control unit displays on the common display unit a display of the first function for the heating unit among the plurality of heating units that has the shortest remaining time.

6. The heating cooker of claim 2, wherein when the first function and the second function are performed simultaneously and the first function is set for a plurality of the heating units, and when the control unit switches the display of the common display unit from a display regarding the second function to a display regarding the first function, the control unit displays on the common display unit a display of the first function for a heating unit that has been previously set among the plurality of heating units.

7. 3. The heating cooker according to claim 2, wherein when the first function is set for a plurality of the heating units and the remaining time of any of the heating units becomes equal to or less than a threshold time, the control unit switches the display of the common display unit to a display relating to the first function for the heating unit whose remaining time has become equal to or less than the threshold time.

8. A heating cooker as described in any one of claims 1 to 7, wherein when the first function and the second function are performed simultaneously and an error occurs, the control unit switches the display of the common display unit to a display related to the error that has occurred.

9. The heating cooker of claim 8, wherein the control unit switches the display of the common display unit from a display regarding the error to a display regarding the first function or a display regarding the second function when a predetermined waiting time has elapsed.

10. The heating cooker of claim 8, wherein the control unit switches the display of the common display unit from a display regarding the error to a display regarding the first function or a display regarding the second function, and if an operation to switch to a display regarding the first function or a display regarding the second function is performed within a predetermined waiting time, the control unit switches the display of the common display unit to a display regarding the error.

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