JP2024103080A - Cooking device and cooking system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cooking device and a cooking system that allows a user to easily perform operations to prevent forgetting to turn off cooking appliances.

SOLUTION: A cooking device includes a heating source that heats an object to be heated, an input operation unit that sets the heating of the heating source, a control unit that sets the set heat power of the heating source according to the setting of the input operation unit and controls the heating source, and a communication unit that communicates with an external device, and when a first set time has elapsed since an operation for setting the heating has been performed from the input operation unit, which is a time shorter than the power-off prevention time set to prevent forgetting to stop heating, the control unit causes the communication unit to send a power-off prevention warning notification signal, which warns of the prevention of forgetting to turn off, to the external device.

SELECTED DRAWING: Figure 8

COPYRIGHT: (C)2024,JPO&INPIT

Description

This technology relates to a cooking device and cooking system equipped with a heating unit. In particular, it relates to preventing forgetting to turn off the heating.

Some cooking appliances have a timer to prevent forgetting to turn off the appliance, to prevent users from forgetting that the appliance is on and continuing to heat it, and to ensure safety (see, for example, Patent Document 1).

The cooking device disclosed in Patent Document 1 has a preset limit time set in the off-time timer, and when the limit time has elapsed, heating is automatically stopped. Here, the cooking device in Patent Document 1 has a cooking timer that can be set to any time, and if the time set in the cooking timer is longer than the limit time, the set time takes priority over the limit time, and heating is performed for the set time.

Japanese Patent Application Publication No. 06-317329

However, the cooking timer is included in the cooking appliance. Therefore, if the user forgets to set the cooking timer or leaves the cooking appliance, the heating will end after a limited time, or the cooking timer cannot be set or changed. For this reason, when cooking something that requires long periods of heating, the function to prevent forgetting to turn it off will activate without the user's knowledge, and it will be inconvenient for the user if they are unable to take action.

Therefore, the objective is to provide a cooking device and cooking system that allows users to easily perform operations to prevent forgetting to turn off the device.

The disclosed cooking appliance includes a heating source for heating an object to be heated, an input operation unit for setting the heating of the heating source, a control unit for setting the heat of the heating source according to the setting of the input operation unit and controlling the heating source, and a cooking appliance communication unit for communicating with an external device, and the control unit causes the cooking appliance communication unit to transmit a signal for warning the user that the device will not be turned off when a first set time has elapsed since an operation for setting the heating was performed from the input operation unit, the first set time being shorter than the power-off prevention time set to prevent the user from forgetting to turn off the heating.

The disclosed cooking system includes a cooking appliance including a heating source for heating an object to be heated, an input operation unit for setting the heating of the heating source, a cooking appliance control unit for setting the heat power of the heating source according to the setting of the input operation unit and controlling the heating source, and a cooking appliance communication unit for communicating with the outside, and an external appliance including an external appliance communication unit for communicating with the cooking appliance, an external appliance input operation unit for accepting operations, an external appliance control unit for performing processing based on operations input from the external appliance input operation unit, and an external appliance notification unit for issuing notifications based on signals from the external appliance control unit, and when a first set time, which is a time shorter than the power-off prevention time set to prevent forgetting to turn off the heating, has elapsed since an operation related to the heating setting was performed from the input operation unit, the cooking appliance control unit causes the cooking appliance communication unit to transmit a power-off prevention warning notification signal, which warns of the prevention of power-off, to the external appliance.

According to the cooking device and cooking system disclosed herein, the control unit issues a warning notification to an external device to prevent forgetting to turn off when a first set time has elapsed since an operation related to the heating setting was performed from the input operation unit and before the forget-to-turn-off prevention function is activated. Therefore, even if the user is away from the cooking device, the user can be alerted that heating will be stopped due to the forget-to-turn-off prevention function.

1 is a schematic diagram showing a heating and cooking system 1a according to a first embodiment of the present disclosure. FIG. 1 is a perspective view showing kitchen furniture 600 according to a first embodiment of the present disclosure. 1 is a side view showing a cooking device 1 according to a first embodiment of the present disclosure. 1 is a top view showing a cooking device 1 according to a first embodiment of the present disclosure. 1 is a schematic diagram showing a central operation unit 15M according to the first embodiment of the present disclosure. FIG. 1 is a schematic diagram showing a left display unit 16L, a left heating power display unit 17L, and a left operation unit 15L according to the first embodiment of the present disclosure. FIG. 1 is a schematic diagram showing a right display unit 16R, a right heating power display unit 17R, and a right operation unit 15R according to embodiment 1 of the present disclosure. FIG. 2 is a functional block diagram showing a cooking device control unit 40 according to the first embodiment of the present disclosure. FIG. 2 is a diagram illustrating an example of a hardware configuration of a cooking device control unit 40 according to the first embodiment of the present disclosure. FIG. 10A to 10C are schematic diagrams showing an example of an operating procedure of the right operating unit 15R according to the first embodiment of the present disclosure. 2 is a diagram showing a configuration of an external device 200 according to the first embodiment of the present disclosure. FIG. FIG. 2 is a diagram showing a first example of a setting image related to the cooking appliance 1 displayed on the screen of the external device 200 in the first embodiment of the present disclosure. FIG. 13 is a diagram illustrating a heating power setting screen according to the first embodiment of the present disclosure. FIG. 11 is a diagram illustrating a timer setting screen according to the first embodiment of the present disclosure. 10 is a flowchart showing a process flow of the heat cooking system 1a when the heat power of the heat cooker 1 according to the first embodiment of the present disclosure is remotely set. 10 is a flowchart showing a process flow of the heat cooking system 1a when the heating time of the heat cooker 1 according to the first embodiment of the present disclosure is set remotely. 11 is a flowchart showing a process flow of the heat cooking system 1a when setting an extension of the heating time of the heat cooker 1 according to the first embodiment of the present disclosure remotely. 2 is a diagram showing an example of a time chart of each part related to prevention of forgetting to turn off in the heating and cooking system 1a according to the first embodiment of the present disclosure. FIG. 1 is a diagram showing an example of a time chart of each part involved in an extension operation for preventing forgetting to turn off in the heating and cooking system 1a according to the first embodiment of the present disclosure. FIG. FIG. 2 is a diagram showing an example of a time chart of each part related to prevention of forgetting to turn off the heater when the heat is strong in the heating cooking system la according to the first embodiment of the present disclosure. FIG. 11 is a diagram showing an example of a time chart of each part related to prevention of forgetting to turn off in the heating and cooking system 1a according to the second embodiment of the present disclosure.

Below, an embodiment of a cooking device and a cooking system according to the present disclosure will be described with reference to the drawings. The present disclosure is not limited to the embodiment described below. In addition, the size relationships of the components in the following drawings, including FIG. 1, may differ from the actual ones. Furthermore, in the following description, terms indicating directions are used as appropriate to facilitate understanding, but these terms are for the purpose of explanation and do not limit the present disclosure. Examples of terms indicating directions include "up", "down", "right", "left", "front" and "rear". The cooking device includes a composite cooking device having multiple types of heating means.

Embodiment 1.
In the present embodiment 1, the "first heating means" HM1 is a heating source for heating an object to be heated on the top plate 3, which will be described later. A representative example of the first heating means HM1 is an induction heating coil. A representative induction heating coil (IH coil) is one in which about 30 thin copper or aluminum wires of about 0.1 mm to 0.3 mm are bundled together, and the bundle is twisted and wound into a spiral shape. Another induction heating coil is one in which about 1,000 to 1,500 wires of about 0.05 mm are wound together. Another proposal is to configure the induction heating coil as a ring-shaped conductor formed from a flat conductive material. Any of these forms corresponds to the "IH coil" which is the main part of the induction heating source 9, which will be described later.

In this embodiment 1, the "second heating means" HM2 refers to a heating source for heating an object to be heated housed inside the heating chamber 6 described below. The second heating means HM2 may be a steam generator that supplies high-temperature steam, such as superheated steam, i.e., a boiler. In this embodiment 1, a magnetron is used as the microwave heating source, but there is no limitation on the microwave oscillation principle or method, such as a microwave oscillator. In addition, the cooking device 1 may be equipped with multiple heating sources.

In this embodiment 1, the "third heating means" HM3 is called "third" to indicate the difference from the second heating means HM2, but does not imply superiority or inferiority. In this embodiment 1, a heat source using a radiant electric heat source, such as a sheath heater, mica heater, carbon heater, ceramic heater, infrared heater, or radiant heater, is used, but a heat source that generates heat in other forms or methods may also be used. The third heating means HM3 refers to one that can heat and cook in one heating chamber 6.

The third heating means HM3 may be a form in which a plurality of heating sources having different heating principles are used in combination, such as a heating source composed of an electric heater and a gas burner (burner). An induction heating source 9 may be used as a heating source for heating the heating chamber 6. The heating source may be a steam generator, i.e., a boiler, that supplies high-temperature steam, such as superheated steam. The third heating means HM3 may be a heating source that heats the wall surface of the heating chamber 6 from the outside, or may be a heating source that is installed in the internal space of the heating chamber 6 and heats the atmosphere in the internal space. A heat-generating member that becomes hot by induction heating may be placed in the heating chamber 6, and the wall surface of the heating chamber 6 may be heated from the outside by this heat-generating member, or the air inside the heating chamber 6 may be heated.

FIG. 1 is a schematic diagram showing a cooking system 1a according to the first embodiment of the present disclosure. The cooking system 1a includes a cooking appliance 1, a wireless router 400, and an external device 200 such as a smartphone having a function of wirelessly communicating with the cooking appliance 1 via a cloud server 300 that is an external device to the cooking appliance 1 and the wireless router 400. The external device 200 has an external device control unit 240 as described later, and performs communication and information management from the cloud server 300, and data conversion for notifying the cloud server 300 of voice input by the user. The external device 200 will be described later. The external device 200 is, for example, an information processing terminal device. Here, in the cooking system according to the first embodiment, the external device 200 is a smartphone. However, the information processing terminal device that is the external device 200 is not limited to a smartphone, and may be a tablet terminal device with a communication function or a smart speaker with a display screen.

The external device 200 and the recipe information providing server 301 in the cloud server 300 are connected by a network 202 using an electric communication line such as an Internet line. Here, the recipe information providing server 301 includes a recipe providing site. The recipe providing site includes a recipe database 302. The recipe information providing server 301 and the cooking appliance 1 are connected by a network 203 such as an Internet line via a wireless router 400 in the home. The wireless router 400 is a device that serves as an interface between the network 203 and a communication unit 51, which is a cooking appliance communication unit of the cooking appliance 1 described later, and is a repeater that connects the external device 200 and the recipe information providing server 301 to the communication unit 51 so that they can communicate with each other. The recipe information providing server 301 also includes heating setting data for the cooking appliance 1, and records heating conditions that can be set from the external device 200 described later to the cooking appliance 1.

In the cooking system 1a, cooking condition data CD3 corresponding to a recipe created by a user in the external device 200 can be transmitted to the recipe information providing server 301. The recipe information providing server 301 can then temporarily store the cooking condition data CD3 in the recipe database 302 and provide it to the cooking appliance 1. In other words, when the external device 200 is in a location far away from the house in which the cooking appliance 1 is installed, such as when the user is away from home, the cooking condition data CD3 of the external device 200 can be stored in the recipe information providing server 301. This provides high convenience.

The cooking appliance 1 downloads cooking condition data CD4 corresponding to a specific recipe stored in the recipe information providing server 301 via the network 203 between the cooking appliance 1 and the recipe information providing server 301 and the wireless router 400.

As an initial setting, the user performs an operation to register identification information such as the model name of the cooking appliance 1. This registration allows the user to obtain cooking condition data corresponding to the specifications of the cooking appliance 1, such as the heating capacities of the first heating means HM1, the second heating means HM2, and the third heating means HM3, from the recipe information providing server 301. The cloud server 300 has a cloud control unit 303 that controls communications using the network 203 and manages access by the cooking appliance 1 and the external device 200 to the recipe information providing server 301.

FIG. 2 is a perspective view showing kitchen furniture 600 according to the first embodiment of the present disclosure. FIG. 3 is a side view showing the cooking device 1 according to the first embodiment of the present disclosure. As shown in FIGS. 2 and 3, the cooking device 1 has a first heating means HM1, a second heating means HM2, and a third heating means HM3 as a heating section HM. The first heating means HM1 is disposed below the top plate 3 that covers the upper surface of the cooking device 1. The second heating means HM2 supplies microwaves to the inside of the heating chamber 6 formed inside the cooking device 1. The third heating means HM3 is located inside or outside the heating chamber 6 and heats it by increasing the temperature of the internal space of the heating chamber 6.

The cooking device 1 is a built-in type induction cooking heater that is incorporated into kitchen furniture 600, i.e., kitchen furniture, which has a cooking counter on top. The cooking device 1 has a main body 2 and a top plate 3 installed on the main body 2. The top plate 3 is exposed on the kitchen countertop that forms the top surface of the kitchen furniture 600. The top plate 3 is composed of, for example, a heat-resistant glass plate and a metal frame attached around the glass plate. Three heating ports 4 are provided on the upper surface of the top plate 3: a left heating port 4L, a right heating port 4R, and a central heating port 4C.

The left heating port 4L, the right heating port 4R, and the center heating port 4C indicate the area where a metal cooking container such as a pot or frying pan is placed. The metal cooking container is also referred to as the "heated object" in relation to the first heating means HM1. Guide marks (not shown) that serve as guides for placing the heated object are printed on the upper surface of the top plate 3 for the left heating port 4L, the right heating port 4R, and the center heating port 4C.

An exhaust port cover 5 is provided on the rear side of the top plate 3. The exhaust port cover 5 is made of a punched metal or lattice-shaped metal member with numerous small through holes, and has good ventilation throughout and low airflow resistance. Exhaust air released from inside the cooking device 1 passes through the exhaust port cover 5 and exits to the outside of the cooking device 1. A heating door, which is a door 7 that opens and closes the front of the heating chamber 6 located inside the main body 2, is provided on the front of the cooking device 1. The door 7 is provided with a handle 8 for opening and closing.

As shown in FIG. 3, an induction heating coil (hereinafter referred to as "left IH coil 9L") is provided below the left heating port 4L as a left induction heating means that serves as a heating source for heating the food to be cooked. Similarly, an induction heating coil (hereinafter referred to as "right IH coil 9R") is provided below the right heating port 4R as a right induction heating means that serves as a heating source, and an induction heating coil (hereinafter referred to as "center IH coil 9C") is provided below the center heating port 4C as a center induction heating means that serves as a heating source. The left IH coil 9L, right IH coil 9R, and center IH coil 9C are circular heating coils made by winding thin conductors such as copper wire or aluminum wire, and generate a high-frequency magnetic field when high-frequency current is supplied. This causes induction heating of the food to be cooked, which is a cooking vessel placed on the left heating port 4L, right heating port 4R, and center heating port 4C.

The heating means including the left IH coil 9L, right IH coil 9R, and center IH coil 9C, and the drive circuit (not shown) which is a high-frequency power supply circuit such as an inverter circuit that drives them, may be referred to as the induction heating source 9 or first heating means HM1. In the following description, the first heating means HM1 will be used unless there is a particular contradiction. A temperature sensor group 30 (see FIG. 8) consisting of multiple temperature sensors is mounted near the left IH coil 9L, right IH coil 9R, and center IH coil 9C to detect the temperature of the top plate 3 or the object to be heated. One temperature sensor (not shown) constitutes one sensor in the temperature sensor group 30.

Inside the main body 2, a heating chamber 6 is provided below the left IH coil 9L, right IH coil 9R, and center IH coil 9C. The heating chamber 6 is surrounded by metal walls such as stainless steel, and is a space for heating the food and ingredients contained in the heating chamber 6 as the object to be cooked. The object to be cooked is placed in a heat-resistant plastic container and placed in the heating chamber 6, or on a porcelain or heat-resistant glass plate. In this case, the plate or container may be called the "heated container." Note that since the container is not induction-heated by the left IH coil 9L, right IH coil 9R, and center IH coil 9C, even if it is placed on the heating port 4 of the top plate 3, it is not called the "heated object" of the left IH coil 9L, right IH coil 9R, and center IH coil 9C.

An opening is formed in the front of the heating chamber 6 for putting in and taking out the food to be cooked. The opening in the front of the heating chamber 6 is covered by a door 7 which can be opened and closed freely. The door 7 is supported by the main body 2 so as to be rotatable via a hinge (not shown) and an arm (not shown). This allows the door 7 to open forward to a horizontal position with its lower end serving as a fulcrum, i.e., the center of rotation. The door 7 may be pulled forward integrally with a support member (not shown) that supports the heated container from below by a slide rail (not shown). The support member is, for example, a structure such as a shelf.

The door 7 is provided with an opening/closing detector 10 for detecting whether the door 7 is open or closed. The opening/closing detector 10 is, for example, a microswitch or an infrared sensor. A microwave oscillator 11 for heating the food contained in the heating chamber 6 is provided behind the heating chamber 6. The microwave oscillator 11 is, for example, composed of a magnetron, and performs range heating to heat the food placed in the heating chamber 6 by irradiating microwaves into the heating chamber 6. The heating means including the microwave oscillator 11 and a drive circuit (not shown) which is a high-frequency power supply circuit such as an inverter circuit that drives it, may be referred to as the second heating means HM2.

The heating chamber 6 is also provided with an upper radiant heat heating means 12a and a lower radiant heat heating means 12b that heat the food from above and below. The upper radiant heat heating means 12a is arranged on the outer or inner ceiling wall surface of the heating chamber 6, and the lower radiant heat heating means 12b is arranged on the inner or outer wall surface of the heating chamber 6, and both are sheath heaters. Other types of radiant heat heating means, such as mica heaters or carbon heaters, may be installed outside the heating chamber 6. Figure 3 shows an example in which the upper radiant heat heating means 12a and the lower radiant heat heating means 12b are both installed in close contact with the outer wall surface of the heating chamber 6.

The heating means including the upper radiant heat heating means 12a, the lower radiant heat heating means 12b, and a drive circuit (not shown) that is a high-frequency power supply circuit such as an inverter circuit that drives these may be referred to as the third heating means HM3. Note that the upper radiant heat heating means 12a and the lower radiant heat heating means 12b may be collectively referred to as the "radiant heat heating means", in which case the reference number 12 is used.

The heating chamber 6 is also provided with an infrared sensor 13, which is a non-contact temperature sensor, to detect the temperature of the food inside the heating chamber 6 without contact. The temperature range detected by the infrared sensor 13 is set to, for example, -20°C to 100°C. This allows the degree of heating of the food to be detected accurately in real time, for example in 1°C increments. The infrared sensor 13 also constitutes one sensor in the group of temperature sensors 30 (see Figure 8).

The heating chamber 6 is also provided with a contact-type temperature sensor, for example, a thermistor sensor 14, which is an indoor temperature sensor that detects the atmospheric temperature inside the heating chamber 6 or the wall temperature of the heating chamber 6. The thermistor sensor 14 detects temperature by capturing changes in electrical resistance, and therefore the upper limit of the temperature that can be detected is approximately 250°C. The thermistor sensor 14 also constitutes one sensor in the temperature sensor group 30 (see Figure 8). The thermistor sensor 14 may be installed in two locations, near the bottom surface and near the ceiling surface of the heating chamber 6, as shown in Figure 3.

Figure 4 is a top view showing the cooking device 1 according to the first embodiment of the present disclosure. As shown in Figure 4, a left operation unit 15L, a central operation unit 15M, and a right operation unit 15R are provided on the front side of the upper surface of the top plate 3 of the cooking device 1. These may be collectively referred to as the "input operation unit 15." On the rear side behind the left operation unit 15L, the central operation unit 15M, and the right operation unit 15R, a left heating power display unit 17L, a central display unit 16M, a right heating power display unit 17R, a left display unit 16L, a right display unit 16R, and a central heating status display unit 17M are provided.

The left display unit 16L, the center display unit 16M, and the right display unit 16R may be collectively referred to as the "display unit 16". The center display unit 16M has a horizontally long liquid crystal display screen. The display unit 16 is controlled by the cooking device control unit 40, which will be described later, and displays characters and the like based on a display signal sent from the cooking device control unit 40, and issues notifications through display. The left heating power display unit 17L and the right heating power display unit 17R display the heating power level using light-emitting elements (such as LEDs), and do not have a display screen. The left heating power display unit 17L, the right heating power display unit 17R, and the center heating status display unit 17M may be collectively referred to as the "heating power display unit 17".

In addition, adjacent to the right operation unit 15R, an operation button (key) 20A for the main power switch 20 is provided. The main power switch 20 turns the main power of the cooking appliance 1 ON or OFF. The button (key) that is pressed to switch ON and OFF is the operation button 20A. When the main power of the cooking appliance 1 is OFF, pressing the operation button 20A for, for example, a few seconds turns the main power ON. In addition, when the main power of the cooking appliance 1 is ON, pressing the operation button 20A for, for example, a few seconds turns the main power OFF.

The central display unit 16M displays information and warnings about the entire cooking device 1, and is composed of a liquid crystal display. The display screen of the central display unit 16M displays the selection result of the induction heating means (first heating means) HM1, the microwave heating means (second heating means) HM2, or the radiant heat heating means (third heating means) HM3. In addition, the display screen of the central display unit 16M displays the operating status of each heating means, caution information for cooking with each heating means, or warning information. The central display unit 16M is a single liquid crystal display in terms of hardware, but has three display areas: a first display area 22 on the left, a second display area 23 in the center of the left and right, and a third display area 24 on the right, and different displays can be displayed in each display area (see Figure 5).

In addition, the first display area 22, the second display area 23, and the third display area 24 may work together as appropriate to form a single large display area depending on the display situation, and may display a single purpose. The central operation unit 15M is mainly used to input operations related to heating cooking in the heating chamber 6 and heating cooking using the central heating port 4C. As shown in Figure 5, the central operation unit 15M has a central heating start key 151M, a central heating cancel key 152M, a first central heat decrease key 153M, a first central heat increase key 154M, a second central heat decrease key 155M, a second central heat increase key 156M, a third central heat decrease key 157M, a third central heat increase key 158M, and a function setting key 159M as input keys. The central heating start key 151M, the central heating cancel key 152M, the first central heat down key 153M, the first central heat up key 154M, the second central heat down key 155M, the second central heat up key 156M, the third central heat down key 157M, the third central heat up key 158M and the function setting key 159M are capacitive touch type keys. However, this is not limited to this, and keys using push button type mechanical switches may also be used. In addition, individual light emitting units 21M corresponding to each input key are provided near the central heating start key 151M, the central heating cancel key 152M, the first central heat down key 153M, the first central heat up key 154M, the second central heat down key 155M, the second central heat up key 156M, the third central heat down key 157M, the third central heat up key 158M and the function setting key 159M. The function setting key 159M used for function setting is a key that allows the user to set various operations and displays of the entire cooking device 1 as desired.

When the function setting key 159M related to function setting is pressed, the heating cooker control unit 40 described later switches to a “function setting mode” and causes the display unit 16 to display a “function setting menu” such as the following on the display screen of the central display unit 16M.
(1) Child lock setting (setting to disable operation of various input keys).
(2) Ventilation fan linkage setting.
(3) Cleaning guide setting (setting of automatic notification function for when to clean heating chamber 6 and exhaust port cover 5) (4) Peak cut setting (select one of four maximum power consumption levels: 5700W, 5000W, 4800W, and 4000W).
(5) Audio guide audio settings.
(6) Audio guide volume settings.
(7) Settings to prevent food to be cooked, cooking utensils, etc. from being forgotten to be removed from the heating chamber 6 (whether or not an alarm is required on the audio notification unit 50 and central display unit 16M).
(8) Communication settings (communication connection settings between the communication unit 51 and the wireless router 400).
Regarding the above-mentioned settings, various setting modes can be changed by operating the central operation unit 15M.

Fig. 5 is a schematic diagram showing a central operation unit 15M according to the first embodiment of the present disclosure. As shown in Fig. 5, the central operation unit 15M of the input operation unit 15 is composed of individual light-emitting units 21M and a group of input keys. The individual light-emitting units 21M emit light when the input function of each input key is enabled, and continue to emit light until the input function is disabled. In the central operation unit 15M, a third central heat down key 157M for function setting is disposed adjacent to the left of the first central heat down key 153M. In the first embodiment, the input form in which the user controls the cooking appliance 1 by pressing with a fingertip or the like (including light contact) is referred to as a touch input mode TM.

Figure 6 is a schematic diagram showing the left display unit 16L, left heating power display unit 17L, and left operation unit 15L according to the first embodiment of the present disclosure. As shown in Figure 6, the left display unit 16L displays information related to cooking at the left heating port 4L, and is configured, for example, with a liquid crystal display. The left display unit 16L displays the set time for timer cooking for an object to be heated placed on the left heating port 4L, the elapsed time since the start of the heating operation at the left heating port 4L, or the remaining time until the timer set time ends, etc.

When preheat cooking is selected using the left heating port 4L, the left display unit 16L displays the default temperature, which is an automatically set temperature, or the current temperature. The default temperature, which is an automatically set temperature, refers to the target temperature of the bottom surface of an object to be heated, such as a metal pan, when it is heated using the left heating port 4L. The default temperature can be changed by the user as desired within a certain range.

The left heating power display unit 17L has multiple left heating power display light-emitting units 170L, which indicate the heating power of the left IH coil 9L in stages. Each left heating power display light-emitting unit 170L includes a light-emitting element such as an LED. The cooking appliance 1 indicates the heating power of the left IH coil 9L in stages by switching the lighting state of each left heating power display light-emitting unit 170L or by switching the lighting color of each left heating power display light-emitting unit 170L. The cooking appliance 1 lights up more left heating power display light-emitting units 170L, for example, from the left, depending on the magnitude of the heating power of the left IH coil 9L. Then, when the left heating port 4L is in a keeping warm state by the left IH coil 9L, the leftmost left heating power display light-emitting unit 170L is turned on. This allows the user to be informed of the heating power in an intuitive and easy-to-understand manner.

The left operation unit 15L is used to input operations related to cooking in the left heating port 4L. As shown in FIG. 6, the left operation unit 15L has five left timer keys 151L, left cooking selection key 152L, left start key 153L, left heat down key 154L, and left heat up key 155L. The left timer key 151L, left cooking selection key 152L, left start key 153L, left heat down key 154L, and left heat up key 155L are touch switches that are capacitance-type touch sensors that can input using the change in capacitance when the user lightly touches them with a finger, for example. However, this is not limited to this, and keys using push-button type mechanical switches may also be used. Individual light-emitting units 21L are provided corresponding to the left timer key 151L, left cooking selection key 152L, left start key 153L, left heat down key 154L, and left heat up key 155L. The individual light-emitting unit 21L is composed of multiple LEDs, which are light-emitting elements, and emits light in response to the operation of the left timer key 151L, left cooking selection key 152L, left start key 153L, left heat down key 154L, and left heat up key 155L. Note that the two adjacent left heat down key 154L and left heat up key 155L share a single individual light-emitting unit 21L because they perform the same type of function of increasing and decreasing heat.

The left timer key 151L is a key that is pressed when selecting timer cooking for the left heating port 4L. Timer cooking is a cooking method in which the user sets the cooking time and performs the heating operation only for the set time. The left cooking selection key 152L is a key that is pressed when selecting a control menu to be implemented for the left heating port 4L. Each time the left cooking selection key 152L is pressed, one can be selected from multiple control menus. The "control menu" referred to here is, for example, boiling water, stewing, and deep frying (automatic cooking). The operating time, heat, or operating pattern of the left heating port 4L differs for each control menu.

The control menu for using the left heating port 4L and the right heating port 4R by operating the left operation unit 15L or the right operation unit 15R without operating the central operation unit 15M is the control menu for the single cooking mode KM1, which is all induction heating. The left start key 153L is a key that is pressed to start or stop cooking in the left heating port 4L. That is, when the left start key 153L is pressed, the left IH coil 9L arranged below the left heating port 4L is driven. When the left start key 153L is pressed again while the left IH coil 9L is being driven, the drive of the left IH coil 9L is stopped and the induction heating operation is immediately stopped. In the first embodiment, when the left start key 153L is operated while the left IH coil 9L is not being driven and the heat power of the left IH coil 9L is not set, the heating cooker 1 is in standby for heating by the left IH coil 9L. In this case, when the heating power of the left IH coil 9L etc. is set and the left start key 153L etc. is operated again, the left IH coil 9L is driven to heat at the set heating power. Note that instead of the left start key 153L, the heating cooker 1 may be provided with a key that accepts an operation to instruct the left IH coil 9L to be on standby for heating, separate from the left start key 153L. Hereinafter, the keys that accept an operation to instruct the left IH coil 9L to be on standby for heating will be collectively referred to as the left start key 153L.

The left heat down key 154L and the left heat up key 155L are keys that are pressed to specify the heat level during cooking in the left heating port 4L. When the user presses the left heat down key 154L on the left side, the heat level is lowered by one level. Conversely, when the user presses the left heat up key 155L on the right side, the heat level is increased by one level. Note that there are nine heat levels for induction cooking in the left heating port 4L, ranging from the minimum rated heat level (heat level 1: 150 W) to the maximum rated heat level (heat level 9: 3200 W).

Figure 7 is a schematic diagram showing the right display unit 16R, right heating power display unit 17R, and right operation unit 15R according to the first embodiment of the present disclosure. As shown in Figure 7, the right display unit 16R displays information related to cooking in the right heating port 4R, and is composed of, for example, a liquid crystal display. The information related to cooking in the right heating port 4R displayed on the right display unit 16R is the same as the information related to cooking in the left heating port 4L. The right heating power display unit 17R is composed of LEDs, which are multiple light-emitting elements, and displays the heating power of the right heating port 4R in multiple stages. Like the left heating power display unit 17L, the right heating power display unit 17R is composed of a right heating power display light-emitting unit 170R, which is a light-emitting element such as an LED, and expresses the heating power by switching the lighting state of the right heating power display light-emitting unit 170R, for example, between on, off, or blinking, or by switching the lighting color.

The right operation unit 15R is used to input operations related to cooking in the right heating port 4R. As shown in FIG. 7, the right operation unit 15R has five right timer keys 151R, right cooking selection key 152R, right start key 153R, right heat down key 154R, and right heat up key 155R. The right timer key 151R, right cooking selection key 152R, right start key 153R, right heat down key 154R, and right heat up key 155R are, for example, capacitive touch keys that can be input using the change in capacitance when the user lightly touches them with a finger or the like. However, this is not limited to this, and keys using push button type mechanical switches may also be used. Individual light emitting units 21R are provided corresponding to the right timer key 151R, right cooking selection key 152R, right start key 153R, right heat down key 154R, and right heat up key 155R, respectively. The individual light-emitting units 21R are LEDs that are light-emitting elements, and the corresponding individual light-emitting units 21R light up in response to the operation of the right timer key 151R, right cooking selection key 152R, right start key 153R, right heat down key 154R, and right heat up key 155R. However, the two adjacent right heat down keys 154R and right heat up keys 155R share one individual light-emitting unit 21R because they perform the same type of function of increasing or decreasing the heat.

The right timer key 151R is a key that is pressed when selecting timer cooking in the right heating port 4R. The right cooking selection key 152R is a key that is pressed when selecting a control menu to be performed in the right heating port 4R. The right start key 153R is a key that is pressed to start or stop cooking in the right heating port 4R. The right heat down key 154R and the right heat up key 155R are keys that are pressed when specifying the heat power during cooking in the right heating port 4R. When the user presses the right heat down key 154R on the left, the heat power is lowered by one step. Conversely, when the user presses the right heat up key 155R on the right, the heat power is raised by one step. The heat power during induction cooking in the right heating port 4R has nine steps, from a rated minimum heat power (heat power 1) of 150W to a rated maximum heat power (heat power 9) of 3200W.

Figure 8 is a functional block diagram showing a cooking device control unit 40 according to the first embodiment of the present disclosure. As shown in Figure 8, the cooking device 1 includes a cooking device control unit 40 that performs integrated control of the entire cooking device 1.

The cooking device control unit 40 is an electronic circuit board on which electronic components such as a control circuit that controls the operation of each component of the cooking device 1 are mounted. The cooking device control unit 40 controls the driving of the left IH coil 9L, the right IH coil 9R, and the center IH coil 9C (not shown) based on the operation of the left operation unit 15L and the right operation unit 15R, and the temperature of the heated object on the top plate 3. The cooking device control unit 40 controls the following driving based on the operation of the center operation unit 15M, the temperature of the heated object on the top plate 3, the detection result of the infrared sensor 13, and the detection result of the thermistor sensor 14. For example, the driving of the center IH coil 9C, the microwave oscillator 11, the upper radiant heat heating means 12a, and the lower radiant heat heating means 12b.

The cooking device control unit 40 also controls the display of the left display unit 16L, the right display unit 16R, the left heating power display unit 17L, and the right heating power display unit 17R based on the operation of the left operation unit 15L and the right operation unit 15R. The cooking device control unit 40 also controls the display of the center display unit 16M and the center heating status display unit 17M based on the open signal from the open/close detection unit 10 and the operation of the left operation unit 15L, the right operation unit 15R, and the center operation unit 15M. The cooking device control unit 40 has a storage device 41 that stores data such as various programs and parameters used to control the cooking device 1, and data on the display screen displayed on the display unit 16, the left heating power display unit 17L, and the right heating power display unit 17R. The data of the various programs and parameters is collectively referred to as "control data". The data on the display screen displayed on the display unit 16, the left heating power display unit 17L, and the right heating power display unit 17R is collectively referred to as "display condition data".

The cooking appliance control unit 40 also activates the audio notification unit 50 as necessary, sends an audio signal to the audio notification unit 50, and notifies the user of the operating status of the cooking appliance 1 by audio. Here, the display unit 16, the heat display unit 17, and the audio notification unit 50 may be collectively referred to as the cooking appliance notification unit 60 without any particular distinction. As described above, the left operation unit 15L, the right operation unit 15R, and the center operation unit 15M may be referred to as the input operation unit 15. The input operation unit 15 has a standby button (not shown) that transitions to a standby state in which the input of the first heating condition and the second heating condition is accepted from the external device 200 described later.

The cooking device control unit 40 stores data in a certain format, including information on various programs and parameters used in the cooking control of the heating control unit 43, in the cooking condition data storage unit 42 of the storage device 41. This data is the cooking condition data CD mentioned above. The cooking device 1 can obtain the "cooking condition data" and the "display condition data" for each cooking menu from an external device 200 such as a communication terminal. The cooking condition data storage unit 42 stores the "cooking condition data" and the "display condition data". The cooking condition data storage unit 42 may constitute a section, i.e., an area, in the storage device 41, or may be configured separately from the storage device 41 in terms of hardware.

The heating control unit 43 performs integrated control of the overall heating operation of the cooking device 1, and is mainly composed of a microcomputer. The data acquisition unit 53 acquires "cooking condition data" from the external device 200 or the cloud server 300 via the communication unit 51, which has a wireless LAN adapter for wireless LAN communication. The data acquisition unit 53 may also acquire "display condition data" from the external device 200 or the cloud server 300 via the communication unit 51. The communication unit 51 communicates wirelessly with the outside, and has a function of wirelessly communicating with the external device 200 or the cloud server 300 via the wireless router 400, as shown in FIG. 1. The communication control unit 44 of the cooking device control unit 40 performs setting and control processing related to the communication of the communication unit 51. The timing unit 52 has a timer, etc., and performs counting.

The power supply circuit 57 supplies constant voltage power to the cooking device control unit 40. The main power switch 20 is a main power switch inserted into the power supply circuit 57. The restriction unit 55 restricts the acquisition of cooking condition data. If the data acquired by the data acquisition unit 53 is invalid data or if the heating setting by the external device 200 is invalid, the restriction unit 55 discards the data. Note that the restriction unit 55 may be realized by a single control program of a computer (not shown) constituting the cooking device control unit 40, and it is not necessarily required that the restriction unit 55 be configured separately from the cooking device control unit 40 on hardware.

FIG. 9 is a diagram illustrating a hardware configuration of the cooking device control unit 40 in the first embodiment of the present disclosure. The hardware configuration of the cooking device control unit 40 in the first embodiment will be described with reference to FIG. 9. The cooking device control unit 40 can be configured, for example, by a processor 35, a memory 36, an input interface circuit 37, and an output interface circuit 38, which are connected to each other by a bus 34. Examples of the processor 35 include a CPU (Central Processing Unit) or an MPU (Micro Processing Unit). Examples of the memory 36 include a ROM (Read Only Memory) or a RAM (Random Access Memory). The functions of the cooking device control unit 40 can be realized by the processor 35 reading and executing various programs and data stored in the memory 36. The following functions of the cooking device control unit 40 can be realized by the processor 35 via the input interface circuit 37. These functions are a function of acquiring detection results from the temperature sensor group 30 and the open/close detection unit 10, a function of acquiring instructions from the communication unit 51, and a function of acquiring instructions via the input operation unit 15. The function of the cooking device control unit 40 to control the first heating means HM1 to the third heating means HM3, the cooking device notification unit 60 (the display unit 16, the heat display unit 17, or the audio notification unit 50), and the communication unit 51 can be realized by the processor 35 via the output interface circuit 38. Here, all or part of the functions of the cooking device control unit 40 described above may be realized by dedicated hardware.

Figure 10 is a schematic diagram showing an example of an operation procedure of the right operation unit 15R according to the first embodiment of the present disclosure. Figure 10 (A) shows the state before the right start key 153R, which selects and starts cooking using the right heating port 4R, is pressed.

When the user presses the right start key 153R, the cooking device control unit 40 receives a signal from the right operation unit 15R and detects that cooking using the right heating port 4R has been selected. Then, as shown in FIG. 10(B), the cooking device control unit 40 causes the individual light-emitting unit 21R corresponding to the right start key 153R to emit light, indicating that the operation has been accepted.

At this time, the right timer key 151R for selecting timer cooking is also waiting for input, so the corresponding individual light-emitting element 21R flashes. The right cooking selection key 152R for selecting a control menu is also waiting for input, so the corresponding individual light-emitting element 21R flashes. The right heat down key 154R and right heat up key 155R, which are operated to select cooking, also flash. In FIG. 10(B), the individual light-emitting elements 21R that are indicated by a star shape or filled in indicate that they are lit or flashing.

If the default heat level for cooking is set to "3," the right heat level display unit 17R, which indicates the heat level for cooking, will continuously light up from the left side of the right heat level display light-emitting unit 170R (or change from blue to red) until it indicates heat level 3, as shown in FIG. 10(B). This allows the user to see the level of heat.

When the user wants to change the heat level to something other than the default setting, if the user presses the right heat decrease key 154R, the heat level decreases by one step with each press, and accordingly the number of lights emitted by the right heat level indicator light-emitting section 170R of the right heat level display section 17R decreases. On the other hand, if the user presses the right heat increase key 155R, the heat level increases by one step with each press, and accordingly the number of lights emitted by the right heat level indicator light-emitting section 170R of the right heat level display section 17R increases.

Next, the function of the cloud control unit 303 will be described in detail. In the following description, the heating menu is the first heating condition, and the setting conditions are the second heating condition and the third heating condition. When the cloud control unit 303 receives a notification from the cooking device 1 that the user has performed a specific operation, it first notifies the external device 200 of the input guide for the first heating condition. After receiving the input information of the first heating condition from the external device 200, the cloud control unit 303 notifies the input guide for the second heating condition. The processing of the cloud control unit 303 may be performed by the cooking device control unit 40 or the external device control unit 240 described later. For example, the first heating condition is a heating mode representing the type of heating, and the second heating condition and the third heating condition are any one of fire power, power, temperature, time, and heat intensity, respectively. The second heating conditions and the third heating conditions vary depending on the input first heating conditions, and the input guidance for the second heating conditions and the input guidance for the third heating conditions vary depending on the type of the second heating conditions and the type of the third heating conditions.

Figure 11 is a diagram showing the configuration of the external device 200 according to the first embodiment of the present disclosure. The external device 200 of the cooking system 1a according to the first embodiment has an external device input operation unit 210, an external device display unit 220, an external device communication unit 230, an external device control unit 240, an external device storage unit 250, and an external device audio notification unit 260. The external device communication unit 230 communicates signals including various data between the cooking appliance 1 and the cloud server 300 via the networks 202 and 203.

The external device display unit 220 has a liquid crystal display device or the like. The external device display unit 220 displays the contents of data contained in signals sent from the cooking appliance 1 and the cloud server 300, the operation screen of the cooking appliance 1, and the like. In the first embodiment, the external device display unit 220 particularly displays a screen related to the extension of the prevention of forgetting to turn off. The external device audio notification unit 260 has a speaker or the like, and issues a sound based on a signal from the external device control unit 240 to notify the user. Here, the external device display unit 220 and the external device audio notification unit 260 become the external device notification unit that issues the notification.

The external device input operation unit 210 has, for example, a touch panel. The external device display unit 220 sends a signal including instructions, data, etc. input by the user to the external device control unit 240. For example, when a touch panel is adopted, a transparent flat capacitance sensor that detects changes in capacitance is mounted on the liquid crystal display device of the external device display unit 220. When the touch surface is contacted (pressed) by the user's fingertip or a dedicated pen, the capacitance sensor sends coordinate data of the contact position to the external device control unit 240. The external device control unit 240 determines the content input by the user based on the contact area. When the user performs an input operation via the external device input operation unit 210, a signal according to the operation content is sent to the external device control unit 240. Here, the external device input operation unit 210 is described as a touch panel, but the external device input operation unit 210 also includes a microphone that collects the user's voice and converts it into voice within the external device 200 to perform an operation.

The external device control unit 240 controls each unit of the external device 200 and controls the entire external device 200. For example, the external device control unit 240 executes an application program executable by the external device 200. The external device control unit 240 processes operations input by the user via the external device input operation unit 210. The external device control unit 240 also transmits signals related to the operation of the cooking device 1 to the cloud server 300 via the external device communication unit 230 and processes signals such as the state of the cooking device 1 sent from the cloud server 300. The external device control unit 240 then performs processing such as reflecting the display content on the external device display unit 220 and storing the data in the external device storage unit 250 for the processed data. The external device storage unit 250 then stores data related to the processing of the external device control unit 240. The external device storage unit 250 of the first embodiment also stores a program executed by the external device control unit 240. The external device control unit 240 executes processing based on the program to realize the processing performed by the external device control unit 240. Here, the external device control unit 240 and the external device storage unit 250 have, for example, a control and calculation processing device such as a CPU, and storage devices such as a RAM and a ROM as hardware.

Next, remote setting of the cooking appliance 1 by the external device 200 will be described. Here, an application program for setting the cooking appliance 1 is installed in the external device 200 and stored in the external device storage unit 250.

12 is a diagram showing a first example of a setting image for the cooking device 1 displayed on the screen of the external device 200 in the first embodiment of the present disclosure. Hereinafter, the setting image for the cooking device 1 displayed on the screen of the external device 200 may be referred to as a setting screen. The external device 200 accepts operations such as tapping on the areas shown in FIG. 12, which are "left", "center", "right", "heat setting", and "timer setting". Here, "left" in FIG. 12 refers to the left IH coil 9L, and when an operation such as tapping is performed on the left setting area 210L, which is an area showing the content "left", the external device 200 accepts an instruction for setting heating by the left IH coil 9L. "Right" in FIG. 12 refers to the right IH coil 9R, and when an operation is performed on the right setting area 210R, which is an area showing the content "right", the external device 200 accepts an instruction for setting heating by the right IH coil 9R. Similarly, "center" in FIG. 12 refers to the center IH coil 9C, and when an operation is performed on the center setting area 210C, which is an area where the content "center" is displayed, the external device 200 accepts a setting instruction regarding heating by the center IH coil 9C. Note that "center" in FIG. 12 may refer to either the microwave oscillator 11 or the radiant heat heating means 12 in addition to the center IH coil 9C. In this case, when an operation is performed on the center setting area 210C, the external device 200 accepts a setting instruction regarding heating by either the microwave oscillator 11 or the radiant heat heating means 12. Note that if the heating by the center IH coil 9C, the microwave oscillator 11, and the radiant heat heating means 12 cannot be remotely set, the setting screen does not need to include the center setting area 210C.

When remote setting is possible for heating by two or more of the central IH coil 9C, the microwave oscillator 11, and the radiant heat heating means 12, the external device 200 may enable selection of one of the two or more heating parts HM that can be remotely set by operating the heating part selection area 210S, which is an area where the content "heating part selection" is indicated. In this case, the external device 200 may display an area including information indicating the two or more heating parts HM as a choice, triggered by an operation on the heating part selection area 210S. The external device 200 may accept an instruction for the heating part HM to be set by operating one of the areas including information indicating the two or more heating parts HM. In addition, the external device 200 may accept an instruction to set the left IH coil 9L or the right IH coil 9R, etc., by operating the heating part selection area 210S. In this case, the left setting area 210L, the center setting area 210C, and the right setting area 210R on the setting screen may be displayed by operating the heating unit selection area 210S. Alternatively, an area for selecting the left IH coil 9L or the right IH coil 9R, etc., may be displayed on the screen of the external device 200 by operating the heating unit selection area 210S, separately from the left setting area 210L, the center setting area 210C, and the right setting area 210R on the setting screen.

When an operation is performed on the heat setting area 210F, which is an area showing the content "heat setting" shown in FIG. 12, the external device 200 displays a setting screen for accepting the setting of the heat by the heating unit HM that performs heating by remote setting. Hereinafter, the setting screen for accepting the setting of the heat may be referred to as the heat setting screen.

When an operation is performed on the timer setting area 210T, which is an area showing the content "Timer setting" shown in FIG. 12, the external device 200 displays a setting screen for accepting the setting of the heating time by the heating unit HM that performs heating by remote setting. Hereinafter, the setting screen for accepting the setting of the heating time may be referred to as the timer setting screen.

13 is a diagram illustrating a heat setting screen in the first embodiment of the present disclosure. The heat setting screen shown in FIG. 13 includes a heat decrease mark 221D and a heat increase mark 221U. The external device 200 accepts an instruction to decrease the heat by an operation such as tapping on the heat decrease mark 221D. The external device 200 accepts an instruction to increase the heat by an operation on the heat increase mark 221U. The heat display area 223 on the heat setting screen shows the heat to be set for the heating unit HM. In FIG. 13, "5" is shown as the heat to be set for the heating unit HM. An operation on the heat decrease mark 221D reduces the value of the heat displayed in the heat display area 223. An operation on the heat increase mark 221U increases the value of the heat displayed in the heat display area 223. In the first embodiment, the heating power displayed in the heating power display area 223 has an upper limit and a lower limit, the upper limit being equal to the upper limit of the heating power at which the input operation unit 15 accepts an operation, and the lower limit being equal to the lower limit of the heating power at which the input operation unit 15 accepts an operation. The external device 200 accepts an instruction to set the value displayed in the heating power display area 223 at the time of the operation on the heating power display area 223 as the magnitude of the heating power. When an operation such as a tap is performed on the heating power display area 223 in the state shown in FIG. 13, the external device 200 accepts an instruction to set the heating power to 5.

FIG. 14 is a diagram illustrating a timer setting screen in the first embodiment of the present disclosure. The timer setting screen shown in FIG. 14 includes a heating time reduction mark 222D and a heating time increase mark 222U. The external device 200 accepts an instruction to shorten the heating time by an operation such as tapping on the heating time reduction mark 222D. The external device 200 accepts an instruction to lengthen the heating time by an operation on the heating time increase mark 222U. Note that in the first embodiment, by operating the heating time reduction mark 222D and the heating time increase mark 222U, the heating time can be changed in units of 10 seconds to 1 minute up to 15 minutes, in units of 5 to 10 minutes up to 15 minutes to 30 minutes, and in units of 10 to 15 minutes up to 30 minutes. However, the unit of change in the heating time is not limited to the above. Furthermore, the time range in which the unit of change in the heating time changes is not limited to the above.

The heating time display area 224 on the timer setting screen shows the heating time to be set for the heating unit HM. In FIG. 14, "10 minutes" is shown as the heating time to be set for the heating unit HM. By operating the heating time reduction mark 222D, the heating time displayed in the heating time display area 224 is shortened by the above-mentioned unit. Also, by operating the heating time increase mark 222U, the heating time displayed in the heating time display area 224 is lengthened by the above-mentioned unit. In the first embodiment, the heating time displayed in the heating time display area 224 has an upper limit and a lower limit, and the upper limit is equal to the upper limit of the heating time accepted by the input operation unit 15, and the lower limit is equal to the lower limit of the heating time accepted by the input operation unit 15. The external device 200 accepts an instruction to set the time displayed in the heating time display area 224 at the time of operating the heating time display area 224 as the heating time by the heating unit HM. When an operation such as a tap is performed on the heating time display area 224 in the state shown in FIG. 14, the external device 200 receives an instruction to set the heating time to 10 minutes.

In addition to input via the images shown in FIG. 12, FIG. 13, and FIG. 14, the external device 200 may also accept numerical input. The external device 200 may also accept instructions regarding the heating power and heating time by accepting input of numerical values indicating the heating power and heating time, respectively. In this case, the external device 200 invalidates the accepted instruction regarding the heating power if the heating power indicated by the input numerical value is outside the range of heating power accepted by the input operation unit 15. Furthermore, the external device 200 invalidates the input instruction regarding the heating time if the input heating time is longer than the upper limit of the heating time accepted by the input operation unit 15, and invalidates the input instruction regarding the heating time if the input heating time is shorter than the lower limit of the heating time accepted by the input operation unit 15.

The above describes the settings made to the cooking appliance 1 via a setting screen displayed on the external device 200 when the external device 200 is a smartphone, tablet terminal, or the like. However, the external device 200, which is a smartphone or tablet terminal, may also operate like the smart speaker described above, and the settings of the cooking appliance 1 may be made by voice as described above.

Figure 15 is a flowchart showing the process flow of the heating cooking system 1a when the heat power of the heating cooker 1 according to the first embodiment of the present disclosure is set remotely. Also, Figure 16 is a flowchart showing the process flow of the heating cooking system 1a when the heating time of the heating cooker 1 according to the first embodiment of the present disclosure is set remotely. And, Figure 17 is a flowchart showing the process flow of the heating cooking system 1a when the heating time extension of the heating cooker 1 according to the first embodiment of the present disclosure is set remotely. Next, the remote setting process for the heating cooker 1 according to the first embodiment will be described with reference to Figures 15 to 17. Here, in the heating cooker 1, the processes of Figures 15 to 17 performed by the heating cooker control unit 40 are mainly performed by the heating control unit 43. Note that in the process flow exemplified in the following Figures 15 to 17, the heating cooker 1 transmits request information, timer information, heating status information, and the like to the external device 200 via the cloud server 300. In addition, the external device 200 transmits various instructions, including transmission instruction information, to the external device 200 via the cloud server 300. In addition, in the following process, output by the external device 200 refers to audio output or display.

In step S1 of FIG. 15, the cooking device 1 receives an instruction to remotely set the heat power of the heating unit HM of the cooking device 1. Specifically, the cooking device 1 receives an instruction to remotely set the heat power by operating the input operation unit 15 such as the left start key 153L or the right start key 153R described above in the cooking device 1, or by receiving an instruction from an external device 200 such as a smartphone or tablet terminal. In this case, the instruction from the external device 200 includes information specifying the heating unit HM selected by the user's operation of the left setting area 210L or the right setting area 210R in the external device 200. When the cooking device control unit 40 (referred to as the control unit 40 in FIG. 15 to FIG. 17) of the cooking device 1 receives information specifying the left IH coil 9L, the individual light-emitting unit 21L may be illuminated in the same manner as when the left start key 153L is operated. When the control unit 40 receives information specifying the right IH coil 9R, it may cause the individual light-emitting unit 21R to emit light in the same way as when the right start key 153R is operated.

In step S2, the cooking appliance 1 transmits request information regarding heat power to the external device 200. In detail, the control unit 40 controls the communication unit 51 to transmit request information requesting an instruction regarding heat power to the external device 200. The communication unit 51 then transmits the request information to the external device 200 in response to control from the control unit 40. The external device 200 receives the request information.

In step S3, the external device 200 outputs the received request information. In step S4, the external device 200 accepts an instruction regarding the heat power. In step S5, the external device 200 transmits the accepted instruction to the cooking appliance 1. The communication unit 51 of the cooking appliance 1 receives the instruction. The control unit 40 may control the cooking appliance notification unit 60 of the cooking appliance 1 to display or output the heat power in the instruction received by the communication unit 51 as audio. In this case, when the selected heating unit HM is the left IH coil 9L, the control unit 40 may control the left heating power display unit 17L to display the heating power in the instruction. Alternatively, when the selected heating unit HM is the right IH coil 9R, the control unit 40 may control the right heating power display unit 17R to display the heating power in the instruction.

In step S6, the control unit 40 sets the heating power based on the instruction received by the communication unit 51 as the heating power of the heating unit HM. In step S7, the control unit 40 determines whether the input operation unit 15 of the heating cooker 1 has received an operation to start heating during the period from when the heating power of the heating unit HM was set in step S6 until a predetermined fixed waiting time has elapsed. Specifically, the control unit 40 determines whether an operation has been performed on the left start key 153L or the right start key 153R before the fixed waiting time has elapsed. If the input operation unit 15 has not received an operation to start heating before the fixed waiting time has elapsed (step S7: NO), in step S8, the control unit 40 ends the reception of instructions regarding the heating power. At this time, the control unit 40 may control the cooking appliance notification unit 60 to notify information indicating that the reception of instructions regarding the heating power has ended.

In step S9, the cooking appliance 1 transmits information to the external device 200 indicating that it has finished accepting instructions regarding the heat. In detail, the control unit 40 controls the communication unit 51 to transmit information indicating that it has finished accepting instructions regarding the heat to the external device 200, and the communication unit 51 transmits the information to the external device 200 under the control of the control unit 40. The external device 200 then receives information indicating that the cooking appliance 1 has finished accepting instructions regarding the heat. In step S10, the external device 200 outputs information indicating that the cooking appliance 1 has finished accepting instructions regarding the heat. After the process of step S10, the remote heat setting process in the cooking system 1a ends. Note that after the process of step S8, the cooking system 1a may end the process for remotely setting the heat without performing the processes of steps S9 to S10.

If the input operation unit 15 receives an operation to start heating before the confirmed waiting time has elapsed (step S7: YES), in step S11, the control unit 40 controls the heating unit HM to heat at the heat power set by the control unit 40 in step S6. The heating unit HM starts heating at that heat power in accordance with the control of the control unit 40. After the processing of step S11, the heating cooking system 1a ends the processing for remotely setting the heat power.

If, in step S1, the cooking appliance 1 receives information specifying the heating power together with information specifying the heating unit HM from the external device 200, such as a smartphone or tablet terminal, the process proceeds to step S6.

The process shown in FIG. 16 is executed after the process shown in FIG. 15. In step S21, the cooking appliance 1 accepts an instruction to set the timer. In detail, the cooking appliance 1 accepts an instruction to set the timer by operating the input operation unit 15 such as the left timer key 151L or the right timer key 151R of the cooking appliance 1. Alternatively, the cooking appliance 1 may accept an instruction to set the timer from the external device 200. When the left IH coil 9L of the cooking appliance 1 is selected and the communication unit 51 of the cooking appliance 1 receives an instruction to set the timer from the external device 200, the control unit 40 of the cooking appliance 1 may cause the corresponding individual light-emitting unit 21L in the cooking appliance 1 to emit light in the same manner as when the left timer key 151L is operated. When the right IH coil 9R of the cooking appliance 1 is selected and the communication unit 51 receives an instruction to set the timer from the external device 200, the control unit 40 may cause the corresponding individual light-emitting unit 21R in the cooking appliance 1 to emit light, in the same way as when the right timer key 151R is operated.

In step S21, the cooking device 1 transmits request information inquiring about the heating time to the external device 200. In detail, the communication control unit 44 of the control unit 40 controls the communication unit 51 to transmit the request information inquiring about the heating time to the external device 200. Then, the communication unit 51 transmits the request information to the external device 200 in response to control from the control unit 40. The external device 200 receives the request information.

In step S23, the external device 200 outputs the received request information. In step S24, the external device 200 accepts an instruction regarding the heating time. In step S25, the external device 200 transmits the accepted instruction to the cooking appliance 1. The communication unit 51 receives the instruction. The control unit 40 may control the cooking appliance notification unit 60 of the cooking appliance 1 to display or output the heating time in the instruction received by the communication unit 51 as audio. In this case, when the selected heating unit HM is the left IH coil 9L, the control unit 40 may control the left heating power display unit 17L of the cooking appliance 1 to display the heating time in the instruction. Alternatively, when the selected heating unit HM is the right IH coil 9R, the control unit 40 may control the right heating power display unit 17R of the cooking appliance 1 to display the heating time in the instruction.

In step S26, the control unit 40 sets the heating time in the instruction received by the communication unit 51 as the heating time by the heating unit HM. In step S27, the control unit 40 determines whether the input operation unit 15 of the heating cooker 1 has received an operation to start the countdown of the heating time from when the control unit 40 set the heating time in step S26 until the fixed waiting time has elapsed. Specifically, the control unit 40 determines whether an operation was performed on the left timer key 151L or the right timer key 151R of the heating cooker 1 before the fixed waiting time has elapsed. If the input operation unit 15 has not received an operation to start the countdown of the heating time before the fixed waiting time has elapsed (step S27: NO), in step S28, the control unit 40 ends the acceptance of the instruction regarding the heating time. At this time, the control unit 40 may control the cooking appliance notification unit 60 to notify information indicating that the acceptance of the instruction regarding the heating time has ended.

In step S29, the cooking appliance 1 transmits information to the external device 200 indicating that it has finished accepting instructions regarding the heating time. In detail, the control unit 40 controls the communication unit 51 to transmit information indicating that it has finished accepting instructions regarding the heating time to the external device 200, and the communication unit 51 transmits the information to the external device 200 under the control of the control unit 40. The external device 200 then receives information indicating that the cooking appliance 1 has finished accepting instructions regarding the heating time. In step S30, the external device 200 outputs information indicating that the cooking appliance 1 has finished accepting instructions regarding the heating time. After the process of step S30, the remote heating time setting process in the cooking system 1a ends. Note that after the process of step S28, the cooking system 1a may end the process for remotely setting the heating time without performing the processes of steps S29 to S30.

If the input operation unit 15 receives an operation to start counting down the heating time before the confirmed waiting time has elapsed (step S27: YES), in step S31, the control unit 40 controls the heating unit HM to perform heating for the heating time set in step S26. After the process of step S31, the heating and cooking system 1a ends the process for remotely setting the heating time.

In the first embodiment, the process of step S21 and subsequent steps is performed after the process of step S11 shown in FIG. 15, but the process of step S21 and subsequent steps may be performed after step S6. In this case, in step S27, the control unit 40 may determine whether the input operation unit 15, such as the left timer key 151L or the left start key 153L, or the right timer key 151R or the right start key 153R, has accepted an operation before the determined waiting time has elapsed. In this case, if the left timer key 151L or the left start key 153L, or the right timer key 151R or the right start key 153R, has accepted an operation before the determined waiting time has elapsed (step S27: YES), in step S31, the control unit 40 causes the heating unit HM to start heating with the heat power set in step S6. Then, in step S31, the control unit 40 controls the heating unit HM to heat for the heating time set in step S26. If the left timer key 151L or the left start key 153L, or the right timer key 151R or the right start key 153R, etc., does not accept any operation before the confirmation waiting time has elapsed (step S27: NO), the cooking system 1a performs the process of step S28.

If the cooking device 1 receives an instruction for setting the timer and an instruction for the heating time from the external device 200, such as a smartphone or tablet terminal, in step S21, the process proceeds to step S26. If the cooking device 1 receives information specifying the heating time together with information specifying the heating unit HM and heat in step S1, the process proceeds to step S26.

The process shown in FIG. 17 is executed after the process shown in FIG. 16. In step S40, the control unit 40 of the cooking device 1 determines whether a predetermined event has occurred. The event may be when the communication unit 51 of the cooking device 1 receives, from the external device 200, transmission instruction information instructing the transmission of timer information corresponding to the remaining time of the heating time set by the timer. Alternatively, the remaining time of the timer set in the cooking device 1 is the advance notice time. In addition, the timer may expire. If the predetermined event has not occurred (step S40: NO), the cooking device 1 returns the process to step S40. If the predetermined event has occurred (step S40: YES), in step S41, the control unit 40 determines whether the event that has occurred is the expiration of the timer. If the event that has occurred is the expiration of the timer (step S41: YES), in step S45 described below, the cooking appliance 1 transmits timer information indicating the expiration of the heating time and request information asking whether the heating time needs to be extended, i.e., whether the timer needs to be reset, to the external device 200. If the event that has occurred is not the expiration of the timer (step S41: NO), in step S42, the cooking appliance 1 transmits timer information to the external device 200 based on the transmission instruction information. In detail, the control unit 40 controls the communication unit 51 to transmit the timer information to the external device 200 based on the transmission instruction information, and the communication unit 51 transmits the timer information to the external device 200 according to the control of the control unit 40. The external device 200 receives the timer information. The control unit 40 may control the display unit 16 or the audio notification unit 50 of the cooking appliance 1 to notify the timer information transmitted by the communication unit 51 to the external device 200.

The transmission instruction information may include an instruction to transmit heating status information indicating the heating status of the heating unit HM of the cooking device 1. In this case, in step S42, the cooking device 1 transmits the heating status information to the external device 200. The control unit 40 may control the display unit 16 or the audio notification unit 50 to notify the external device 200 of the heating status information transmitted by the communication unit 51. The external device 200 that receives the heating status information outputs the heating status information.

In step S43, the external device 200 outputs timer information. In step S44, the control unit 40 determines whether the heating time has expired. If the heating time has not expired (step S44: NO), the cooking device 1 returns the process to step S40. If the heating time has expired (step S44: YES), in step S45, the cooking device 1 transmits to the external device 200 timer information indicating the expiration of the heating time and request information inquiring whether the heating time needs to be extended, i.e., whether the timer needs to be reset. In detail, the control unit 40 controls the communication unit 51 to transmit to the external device 200 timer information indicating the expiration of the heating time and request information inquiring whether the timer needs to be reset. The external device 200 receives the timer information and the request information in response to control from the control unit 40. In step S45, the cooking device 1 may transmit request information requesting an instruction regarding heat to the external device 200.

In step S46, the external device 200 outputs the timer information and request information received in step S45. In step S47, the external device 200 accepts an instruction to reset the timer. In step S47, the external device 200 may accept an instruction indicating the length of the heating time to be extended along with the instruction to reset the timer. In step S48, the external device 200 transmits an instruction to reset the timer to the cooking appliance 1.

If the external device 200 receives an instruction indicating the length of the extended heating time in step S47, then in step S48 the external device 200 transmits an instruction indicating the length of the extended heating time to the cooking appliance 1 together with an instruction to reset the timer. If the external device 200 receives an instruction to reset the timer in step S47 but does not receive an instruction regarding the length of the extended heating time, then in step S48 the external device 200 transmits an instruction to reset the timer to the cooking appliance 1. Then, the external device 200 receives request information from the cooking appliance 1 inquiring about the extension of the heating time. Furthermore, the external device 200 receives an instruction regarding the extension of the heating time from the user and transmits the instruction regarding the extension of the heating time to the cooking appliance 1.

In step S47, the external device 200 may receive an instruction regarding the heat power at the same time as the instruction regarding the timer. In this case, in step S48, the external device 200 transmits the instruction regarding the heat power to the cooking appliance 1.

In step S49, the control unit 40 determines whether the communication unit 51 has received an instruction to reset the timer from the external device 200 during the period from when the cooking appliance 1 sent request information in step S45 asking whether the timer needs to be reset until the instruction waiting time has elapsed. If the communication unit 51 has not received an instruction to reset the timer before the instruction waiting time has elapsed (step S49: NO), in step S50, the control unit 40 ends the acceptance of the instruction to extend the heating time. At this time, the control unit 40 may control the cooking appliance notification unit 60 to notify information indicating that the acceptance of the instruction to extend the heating time has ended.

In step S51, the cooking appliance 1 transmits information to the external device 200 indicating that it has finished accepting the instruction to extend the heating time. In detail, the control unit 40 controls the communication unit 51 to transmit information indicating that it has finished accepting the instruction to extend the heating time to the external device 200, and the communication unit 51 transmits the information to the external device 200 under the control of the control unit 40. Then, the external device 200 receives information indicating that the cooking appliance 1 has finished accepting the instruction to extend the heating time. In step S52, the external device 200 outputs information indicating that the cooking appliance 1 has finished accepting the instruction to extend the heating time. After the process of step S52, the process for remotely setting the extension of the heating time in the cooking system 1a is terminated. Note that after the process of step S50, the cooking system 1a may terminate the process for remotely setting the extension of the heating time without performing the processes of steps S51 to S52.

If the communication unit 51 receives an instruction to reset the timer before the instruction waiting time has elapsed (step S49: YES), in step S53, the control unit 40 resets the timer. In this case, the control unit 40 may control the display unit 16 or the audio notification unit 50 to notify that the timer has been reset. Specifically, when the left IH coil 9L is selected as the heating unit HM, the control unit 40 may cause the corresponding individual light-emitting unit 21L in the cooking appliance 1 to emit light. Note that, when the communication unit 51 receives an instruction to reset the timer in step S49, it is assumed that the communication unit 51 has received an instruction to extend the heating time at the same time as the instruction to reset the timer, or before or after the instruction to reset the timer.

In step S49, if the communication unit 51 receives an instruction to reset the timer and an instruction on the length of the extended heating time before the specified waiting time has elapsed, in step S53, the control unit 40 extends the heating time by the heating unit HM by the heating time in the instruction. If the communication unit 51 receives an instruction to reset the timer before the specified waiting time has elapsed and receives an instruction on the length of the extended heating time before or after receiving the instruction to reset the timer, in step S53, the control unit 40 also extends the heating time by the heating unit HM by the heating time in the instruction. In this case, the control unit 40 may control the display unit 16 or the audio notification unit 50 to notify the extended heating time. Specifically, when the left IH coil 9L is selected as the heating unit HM, the control unit 40 may display the extended heating time on the left heating power display unit 17L of the heating cooker 1.

In step S49, if the communication unit 51 receives an instruction for the heating power together with an instruction to reset the timer before the instruction waiting time has elapsed, in step S53, the control unit 40 sets the heating power of the heating unit HM to the heating power in the instruction. If the communication unit 51 receives an instruction to reset the timer before the instruction waiting time has elapsed, and also receives an instruction for the heating power before or after receiving the instruction to reset the timer, in step S53, the control unit 40 sets the heating power of the heating unit HM to the heating power in the instruction. In this case, the control unit 40 may control the display unit 16 or the audio notification unit 50 to notify the set heating power. Specifically, when the left IH coil 9L is selected as the heating unit HM, the control unit 40 may cause the left heating power display unit 17L to display the set heating power.

In step S54, the control unit 40 determines whether the input operation unit 15 of the cooking appliance 1 has received an operation to confirm the resetting of the timer between the resetting of the timer in step S53 and the lapse of the confirmation waiting time. Specifically, the control unit 40 determines whether an operation has been performed on the left timer key 151L or the right timer key 151R of the cooking appliance 1 before the confirmation waiting time has elapsed. If the input operation unit 15 has not received an operation to confirm the resetting of the timer before the confirmation waiting time has elapsed (step S54: NO), the cooking system 1a ends the process for remotely executing the setting of an extension of the heating time after the processes of steps S50 to S52 or after the process of step S50.

If the input operation unit 15 receives an operation to reset the timer before the confirmed waiting time has elapsed (step S54: YES), in step S55, the control unit 40 controls the heating unit HM to perform heating for the extended heating time.

If the communication unit 51 has not received an instruction regarding the heat power before step S54, after step S48, the control unit 40 controls the heating unit HM in step S55 to heat the food with the same heat power as the heat power before it is determined that the heating time has expired in step S44. On the other hand, if the communication unit 51 receives an instruction regarding the heat power after step S48 but before step S54, the control unit 40 controls the heating unit HM in step S55 to heat the food with the heat power in the instruction received by the communication unit 51. After the process of step S55, the heating time extension process by the heating cooking system 1a ends.

During the confirmation waiting time in step S54, if the input operation unit 15 receives a change instruction to change the instruction from the external device 200 instead of an operation to confirm the resetting of the timer, the cooking device 1 operates based on the change instruction. After the operation by the cooking device 1, the cooking system 1a ends the process for extending the heating time.

The processing of steps S40 to S43 in FIG. 17 may be omitted as necessary depending on the settings of the cooking device 1, for example, if the user only wants to be notified about the expiration of the heating time.

In the above explanation, the display unit 16 or the audio notification unit 50 is provided in the cooking appliance 1, but the external device 200 may be configured to provide the notification as the cooking system 1a. Also, the notification may be provided by both the cooking appliance 1 and the external device 200.

As described above, in the cooking system 1a of the first embodiment, not only can the cooking appliance 1 send a signal to the external device 200 to notify the cooking appliance 1 of its status, but also the external device 200 can send a signal such as an instruction to the cooking appliance 1 via the network 202 or the like. Therefore, the external device 200 of the first embodiment can remotely control the cooking appliance 1. In addition, the external device 200 can set the cooking time of the cooking appliance 1.

Here, the cooking appliance 1 of the first embodiment has a function to prevent heating from continuing due to the user forgetting to turn it off, and to ensure safety. The function to prevent forgetting to turn it off is a function to forcibly stop heating when the forgetting to turn it off prevention time has elapsed, during which cooking continues without any operation when not using a timer. The forgetting to turn it off prevention time is a predetermined time, such as 45 minutes. In the cooking system 1a of the first embodiment, the cooking appliance 1 sends a signal to the external device 200 to notify the user of the forgetting to turn it off at the first set time. Then, when an instruction to extend the heating time is received from the external device 200, the cooking appliance 1 extends the heating time. Here, the first set time is a time shorter than the forgetting to turn it off prevention time.

Figure 18 is a diagram showing an example of a time chart of each part related to the prevention of forgetting to turn off in the cooking system 1a of the first embodiment of the present disclosure. In Figure 18, an example is described in which the user does not perform an extension operation of the prevention of forgetting to turn off. Here, the user operates the input key on the right operation unit 15R to cook the food placed on the right heating port 4R. At this time, in the cooking appliance 1, the heating control unit 43 of the cooking appliance control unit 40 drives the inverter circuit (not shown) to supply power to the right IH coil 9R and heat the food. Here, the operation of the cooking appliance 1 is not limited to the operation of the input operation unit 15, and as described above, the user may operate the cooking appliance 1 from the external device 200.

The user operates the right start key 153R of the right operation unit 15R (D01). The heating control unit 43 of the cooking device control unit 40 outputs a signal of a heating command at heat power 5 to the corresponding inverter circuit (B101), and the right IH coil 9R, which is the heating source for heating the food to be cooked, heats the food to be cooked (C01). At this time, 1000 W of power is supplied, and power corresponding to heat power 5 is supplied to the inverter circuit (A01). In addition, the right heating power display unit 17R illuminates the right heating power display light-emitting unit 170R for the amount corresponding to heat power 5 to display the heating power (E01). The audio notification unit 50 issues a voice notification saying, "Heating will start, heat power 5" (F01). At this timing, the timer unit 52 of the cooking device control unit 40 starts counting (timekeeping) the warning to prevent forgetting to turn off (B201). Here, the expiration time of the count for the warning to prevent forgetting to turn off, which is the first set time, is, for example, 40 minutes.

The user operates the right heat down key 154R of the right operation unit 15R while the food is being heated (D02). The heating control unit 43 of the cooking device control unit 40 outputs a signal to the corresponding inverter circuit to command heating at heat level 3 (B102), and the right IH coil 9R heats the food (C02). At this time, 500 W of power is supplied to the inverter circuit, and power corresponding to heat level 3 is supplied (A02). The right heating power display unit 17R also illuminates the right heating power display light-emitting unit 170R for the amount corresponding to heat level 3 to display the heating power (E02). The audio notification unit 50 also issues a voice notification saying "Heat level 3" (F02). Then, as a result of the operation, the timer unit 52 of the cooking device control unit 40 resets the count of the warning to prevent forgetting to turn off and starts counting again (B201).

When the timer unit 52 reaches 40 minutes, which is the expiration time of the power-off prevention warning count, it starts counting to stop the power-off prevention (B202). Here, the power-off prevention time is set to the sum of the first setting time and the stop setting time, which is the expiration time of the count for the power-off prevention stop. Therefore, in this case, the stop setting time is 5 minutes. In addition, the communication unit 51 transmits a power-off prevention warning notification signal based on an instruction from the communication control unit 44 of the cooking appliance control unit 40 (G01).

The external device communication unit 230 of the external device 200 receives a signal for a warning notice to prevent forgetting to turn off (L01). The external device display unit 220 displays an indication of extended standby based on the signal from the external device control unit 240 (J01). The external device audio notification unit 260 issues a voice notification saying, "The right induction heater will be turned off in 5 minutes. If you want to stop heating immediately, perform the stop operation. If you want to continue heating, perform the extension operation." (K01). The external device control unit 240 then waits to receive a signal for an extension operation or a stop operation from the external device input operation unit 210 (H01). Here, the standby time for the reception standby of the external device control unit 240 is set to the same time as the stop setting time.

The timer unit 52 stops counting when the set stop time of 5 minutes has elapsed. The heating control unit 43 outputs a heating stop command signal to the corresponding inverter circuit (B103), and stops heating by the right IH coil 9R. The right display unit 16R also displays that the forget-to-turn-off prevention function is in operation (E03). The audio notification unit 50 issues a sound to notify the user that "the forget-to-turn-off prevention function has been activated" (F03).

In this way, in the heating cooker 1 and the heating cooking system 1a in the first embodiment, the heating cooker control unit 40 issues a warning notice to the external device 200 when the first set time before the power-off prevention function works has elapsed after the input operation unit 15 performs an operation related to the heating setting. Therefore, even if the user is away from the heating cooker 1, the user can be alerted that heating will be stopped due to the power-off prevention function. Therefore, a heating cooker 1 that is convenient and easy to use for the user can be obtained. Then, the heating cooker control unit 40 stops heating by the right IH coil 9R without issuing an extension notice when the stop set time has elapsed based on the power-off prevention stop count that started after issuing the power-off prevention warning notice. This allows the power-off prevention function to work.

Figure 19 is a diagram showing an example of a time chart of each part related to the extension operation of the power-off prevention function in the heating and cooking system 1a according to the first embodiment of the present disclosure. Figure 19 shows an example of a case where the user performs an extension operation in response to the power-off prevention warning when heating is performed with the heat level set to 6 or less.

In the cooking appliance 1, the right IH coil 9R heats the food at heating power 3 under the control of the heating control unit 43 of the cooking appliance control unit 40 (C02). At this time, 500 W of power is supplied, and power corresponding to heating power 3 is supplied to the inverter circuit (A02). The right heating power display unit 17R also displays the right heating power display light-emitting unit 170R by illuminating the amount corresponding to heating power 3 (E02). The timer unit 52 of the cooking appliance control unit 40 is counting the warning to prevent forgetting to turn off (B201).

When the timer 52 reaches the expiration time of 40 minutes, it starts the power-off prevention stop (B202). In addition, the communication unit 51 transmits a warning notification signal based on an instruction from the communication control unit 44 of the cooking device control unit 40 (G01).

The external device communication unit 230 of the external device 200 receives a notice signal (L01). The external device control unit 240 waits for a signal for an extension operation from the external device input operation unit 210 (H01). The external device display unit 220 displays an indication of an extension wait based on the signal from the external device control unit 240 (J01). The external device audio notification unit 260 issues a voice notification based on the signal from the external device control unit 240 saying, "The right induction heater will be turned off in 5 minutes. If you want to stop heating immediately, perform the stop operation. If you want to continue heating, perform the extension operation." (K01).

When a signal regarding an extension operation is sent from the external device input operation unit 210 based on an instruction from the user (I11), the external device control unit 240 stops the extension standby. Then, the external device communication unit 230 sends an extension notification signal based on the signal from the external device control unit 240 (L11). Also, the external device display unit 220 displays the fact that an extension notification has been sent based on the signal from the external device control unit 240 (J11). Then, the external device audio notification unit 260 issues a voice notification saying "An extension to prevent forgetting to turn off will be sent" based on the signal from the external device control unit 240 (K11).

The communication unit 51 receives an extension notification signal from the external device 200 (G11). In the cooking device control unit 40 that has received the extension notification, the timer unit 52 counts the extension of the warning to prevent forgetting to turn off (B211). Here, the second set time set for the extension, which is the expiration time of the count in the warning to prevent forgetting to turn off, is divided into different times depending on the set heat power of the heating source. For example, if the threshold heat power that distinguishes the second set time is between heat power 6 or less and heat power 7 or more, the expiration time when heating is performed at heat power 6 or less is, for example, 30 minutes. Here, since the right IH coil 9R is heated at heat power 3, the second set time is 30 minutes. Then, the audio notification unit 50 issues a voice to notify the user of "extending the prevention of forgetting to turn off" based on the signal from the cooking device control unit 40 (F11). However, this is not limited to this, and the audio notification unit 50 does not have to notify the user of the extension.

When the countdown extension count reaches 30 minutes, which is the expiration time, the timer unit 52 starts counting the power-off prevention stop (B202). The communication unit 51 transmits a power-off prevention warning notification signal based on an instruction from the communication control unit 44 of the cooking appliance control unit 40 (G01).

The external device communication unit 230 of the external device 200 receives a notice signal (L01). The external device control unit 240 waits for a signal for an extension operation from the external device input operation unit 210 (H01). The external device display unit 220 displays an indication of an extension wait based on the signal from the external device control unit 240 (J01). The external device audio notification unit 260 issues a voice notification saying, "The right induction heater will be turned off in 5 minutes. If you want to stop heating immediately, perform the stop operation. If you want to continue heating, perform the extension operation." (K01).

The timer unit 52 stops counting when the count reaches the expiration time of 5 minutes. The heating control unit 43 outputs a heating stop command signal to the corresponding inverter circuit (B103), causing the right IH coil 9R to stop heating. The right display unit 16R also displays that the power-off prevention function is in progress (E03). Here, the audio notification unit 50 does not emit a sound, but it may also emit a sound saying "Power-off prevention function has been activated" as in F03 described above.

Here, if the communication environment, the specifications of the external device 200, etc., do not notify the external device 200 that heating has stopped due to the function to prevent forgetting to turn off, the external device display unit 220 continues to display the fact that the device is on standby for an extended period. At this time, even though the function to prevent forgetting to turn off has been activated in the cooking appliance 1 and heating has stopped, there is a possibility that the user will perform an operation to extend the period.

When a signal regarding an extension operation is sent from the external device input operation unit 210 based on an instruction from the user (I12), the external device control unit 240 stops the extension standby. Then, the external device communication unit 230 transmits an extension notification signal based on the signal from the external device control unit 240 (L11). Also, the external device display unit 220 displays an indication that an extension notification has been sent based on the signal from the external device control unit 240 (J11).

The communication unit 51 receives an extension notification signal from the external device 200 (G11). However, the power-off prevention function is activated. Therefore, the audio notification unit 50 issues a voice message saying "The extension operation is invalid" based on the signal from the cooking device control unit 40 (F12).

In this way, in the cooking appliance 1 and cooking system 1a in the first embodiment, when an extension notification is sent before the stop setting time, which is the expiration time of the off-forget prevention stop count, the cooking appliance control unit 40 continues heating the right IH coil 9R even after the off-forget prevention time has elapsed. Therefore, by the user instructing an extension of heating, it is possible to prevent unintentional stopping of heating, improving usability.

In addition, in the cooking appliance 1 and cooking system 1a in the first embodiment, the external device 200 not only issues a warning notice to prevent forgetting to turn off the appliance, but also allows the user to perform an extension operation from the external device input operation unit 210 and issue an extension notice to the cooking appliance 1 in support of an extension. This provides user-friendliness.

Furthermore, in the cooking appliance 1 and cooking system 1a in the first embodiment, the cooking appliance control unit 40 in the cooking appliance 1 stops heating by the right IH coil 9R when the second set time has elapsed since the extension notification was sent. Even if an extension operation is performed, the safety of the cooking appliance 1 can be improved by activating the power-off prevention function. Furthermore, before the second set time has elapsed, a power-off prevention advance notification is sent again to the external device 200. This makes it possible to warn the user again that heating will be stopped due to power-off prevention and to extend the time, improving usability.

Here, when heating by the right IH coil 9R is stopped due to the power off prevention function, the cooking device control unit 40 does not accept and disables signals from the external device 200 related to the heat setting and heat ON operation. As a result, in order to heat the heated object again, the user needs to check the state of the pan and the heated object near the cooking device 1. This makes it possible to prevent the external device 200 from starting heating without the user checking if the pan and the cooking object are in an abnormal state, such as when there is no moisture in the pan or the cooking object. Here, the cooking device 1 is described as not sending a signal to the external device 200 indicating that operations such as the heat setting from the external device 200 are invalid after the power off prevention function is performed, but this is not limited to this. The cooking device 1 may send a signal to the external device 200, and the external device 200 may notify the user that the operation is invalid due to the power off prevention function being activated.

Figure 20 is a diagram showing an example of a time chart of each part related to preventing forgetting to turn off when the heat is high in the heating cooking system 1a according to the first embodiment of the present disclosure. In Figure 20, an example is described in which the user performs an extension operation on the warning to prevent forgetting to turn off when heating is performed with the heat level set to 7 or higher.

In the cooking appliance 1, the right IH coil 9R heats the food at heating power 7 based on the control of the heating control unit 43 of the cooking appliance control unit 40 (C21). At this time, 2000 W of power is supplied, and power corresponding to heating power 7 is supplied to the inverter circuit (A21). In addition, the right heating power display unit 17R displays the right heating power display light-emitting unit 170R by illuminating the amount corresponding to heating power 7 (E21). And the timer unit 52 of the cooking appliance control unit 40 is counting the warning to prevent forgetting to turn off (B201).

When the first set time of 40 minutes has elapsed in the off-off prevention warning count, the timer unit 52 starts counting to stop the off-off prevention (B202). In addition, the communication unit 51 transmits a signal for a turn-off prevention warning notification based on an instruction from the communication control unit 44 of the cooking appliance control unit 40 (G01).

The external device communication unit 230 of the external device 200 receives a signal for a warning notice to prevent forgetting to turn off (L01). The external device control unit 240 waits for a signal for an extension operation from the external device input operation unit 210 (H01). Furthermore, the external device display unit 220 displays an indication of extension standby based on the signal from the external device control unit 240 (J01). Based on the signal from the external device control unit 240, the external device audio notification unit 260 issues an audio notification saying, "The right IH forget prevention function will be activated in 5 minutes. If you want to stop heating immediately, perform the stop operation, or if you want to continue heating, perform the extension operation" (K01).

When a signal for an extension operation is sent from the external device input operation unit 210 based on an instruction from the user (I11), the external device control unit 240 stops the extension standby. Then, the external device communication unit 230 sends a signal for an extension notification based on the signal from the external device control unit 240 (L11). Also, the external device display unit 220 displays an extension notification transmission based on the signal from the external device control unit 240 (J21). Here, when heating at high heat, the external device display unit 220 also displays a high heat warning. Then, based on the signal from the external device control unit 240, the external device audio notification unit 260 issues an audio notification saying, "An extension to prevent forgetting to turn off will be sent. Heating at high heat. Check the state of the pot and reduce the heat." (K21).

The communication unit 51 receives an extension notification signal from the external device 200 (G11). In the cooking device control unit 40 that has received the extension notification, the timer unit 52 counts the extension of the warning to prevent forgetting to turn off (B221). Here, the expiration time when heating is performed at heat level 7 or higher is, for example, 15 minutes. Then, based on the signal from the cooking device control unit 40, the audio notification unit 50 issues a voice notification saying, "The prevention of forgetting to turn off will be extended. Heating is being performed at high heat. Please check the state of the pot and reduce the heat." (F21). Depending on the communication environment, the notification from the external device 200 may be delayed. Therefore, when the prevention of forgetting to turn off is extended, particularly when heating at high heat, a notification urging a change in heat is performed not only from the external device 200 but also from the cooking device 1, thereby achieving a more reliable notification.

When the countdown extension count reaches 15 minutes, which is the expiration time, the timer unit 52 starts counting the power-off prevention stop (B202). The communication unit 51 transmits a power-off prevention warning notification signal based on an instruction from the communication control unit 44 of the cooking appliance control unit 40 (G01).

The external device communication unit 230 of the external device 200 receives a signal for warning notification to prevent forgetting to turn off (L01). The external device control unit 240 waits for a signal for an extension operation from the external device input operation unit 210 (H01). Furthermore, the external device display unit 220 displays an indication of extension standby based on the signal from the external device control unit 240 (J01). The external device audio notification unit 260 issues an audio notification saying, "The right induction heater will be turned off in 5 minutes. If you want to stop heating immediately, perform the stop operation, or if you want to continue heating, perform the extension operation" (K01).

When a signal regarding a stop operation is sent from the external device input operation unit 210 based on an instruction from the user (I21), the external device control unit 240 stops the extended standby. Then, the external device communication unit 230 transmits a stop notification signal based on the signal from the external device control unit 240 (L21). Also, the external device display unit 220 displays the transmission of a stop notification based on the signal from the external device control unit 240 (J22). Then, the external device audio notification unit 260 issues a voice notification saying "Sending a message to stop heating" based on the signal from the external device control unit 240 (K22).

The communication unit 51 receives a stop notification signal from the external device 200 (G21). The heating control unit 43 of the cooking device control unit 40, which has received the stop notification, outputs a heating stop command signal to the corresponding inverter circuit (B103), causing the right IH coil 9R to stop heating. The right display unit 16R also displays that the stop is due to an operation from the external device 200 (E22). The audio notification unit 50 issues a voice notification saying, "The right IH heating has been stopped due to an operation of the external device" (F22).

In this way, in the cooking appliance 1 and cooking system 1a in the first embodiment, when the timer unit 52 of the cooking appliance control unit 40 counts during the extended warning period to prevent forgetting to turn off, the second set time is made to differ depending on the set heat power of the right IH coil 9. When the object to be heated is heated at a high set heat power of 7 or more, which is equal to or greater than the threshold value, if the object to be heated is heated for a long period of time, the moisture in the pot (the object to be heated) will disappear, and the object is likely to be cooked empty. For this reason, by making the function to prevent forgetting to turn off work earlier when the set heat power is high, safety can be improved.

At this time, the cooking appliance notification unit 60, including the audio notification unit 50, can issue a notification urging the user to change the heat setting, urging the user to lower the heat setting, preventing the user from forgetting to turn off the appliance and causing the appliance to burn out, thereby improving safety. Here, a notification may be issued asking whether the heat setting should be changed. In particular, a more reliable notification can be achieved by issuing a notification urging the user to change the heat setting from the cooking appliance 1.

In the cooking appliance 1 and cooking system 1a in the first embodiment, the cooking appliance control unit 40 stops heating the right IH coil 9R when a stop notification is sent before the stop setting time, which is the expiration time of the forget-to-turn-off prevention stop count. Therefore, heating can be stopped safely in response to the user's operation to stop heating.

In addition, in the cooking appliance 1 and cooking system 1a in the first embodiment, the user can perform a stop operation from the external device input operation unit 210, and a stop notification can be sent from the external device 200 to the cooking appliance 1. In this way, the user can perform an extended stop operation to prevent forgetting to turn off the cooking appliance 1 from the external device 200, so even if the user has forgotten that the cooking appliance 1 is heating, the cooking appliance can be stopped quickly, which is convenient.

Embodiment 2.
FIG. 21 is a diagram showing an example of a time chart of each part related to the prevention of forgetting to turn off in the cooking system 1a of the second embodiment of the present disclosure. In the cooking device 1 and cooking system 1a of the second embodiment, an example of the case where heating is performed again after the user does not perform an extension operation for the warning of forgetting to turn off is described. In the second embodiment, the user also operates the keys of the right operation unit 15R to cook the food placed on the right heating port 4R. The cooking device 1 drives the inverter circuit (not shown) to supply power to the right IH coil 9R and heat the food. However, the user may operate from the external device 200.

The user operates the right start key 153R of the right operation unit 15R (D51). The heating control unit 43 of the cooking device control unit 40 outputs a signal of a heating command at heat power 5 to the corresponding inverter circuit (B151), and the right IH coil 9R heats the food to be cooked (C51). At this time, 1000 W of power is supplied, and power corresponding to heat power 5 is supplied to the inverter circuit (A51). In addition, the right heating power display unit 17R illuminates the right heating power display light-emitting unit 170R for the amount corresponding to heat power 5 to display the heating power (E51). The audio notification unit 50 issues a voice notification saying, "Heating will start, heat power 5" (F51). At this timing, the timer unit 52 of the cooking device control unit 40 starts counting (timekeeping) the warning to prevent forgetting to turn off (B251). Here too, the heating time until the power-off prevention function works (45 minutes) is set to, for example, 40 minutes, while the expiration time for the power-off prevention warning is set to, for example, 40 minutes.

The user operates the right heat down key 154R on the right operation unit 15R while the food is being heated (D52). The heating control unit 43 of the cooking device control unit 40 outputs a signal to the corresponding inverter circuit to command heating at heat level 3 (B152), and the right IH coil 9R heats the food (C52). At this time, 500 W of power is supplied to the inverter circuit, and power corresponding to heat level 3 is supplied (A52). The right heating power display unit 17R also illuminates the right heating power display light-emitting unit 170R for the amount corresponding to heat level 3 to display the heating power (E52). The audio notification unit 50 issues a voice notification saying, "Heat level 3" (F52). At this timing, the timer unit 52 of the cooking device control unit 40 resets the count of the warning to prevent forgetting to turn off, and starts counting again (B251).

When the timer 52 reaches the expiration time of 40 minutes, the timer starts counting to stop the power-off prevention (B252). Here, the expiration time of the count for power-off prevention stop is, for example, 5 minutes. The communication unit 51 also transmits a warning notification signal based on an instruction from the communication control unit 44 of the cooking appliance control unit 40 (G51).

The external device communication unit 230 of the external device 200 receives a notice signal (L51). The external device control unit 240 waits for a signal for an extension operation from the external device input operation unit 210 (H51). The external device display unit 220 displays an indication of an extension wait based on the signal from the external device control unit 240 (J51). The external device audio notification unit 260 issues an audio notification saying, "The right induction heater will be turned off in 5 minutes. If you want to stop heating immediately, perform the stop operation. If you want to continue heating, perform the extension operation." (K51).

The timer unit 52 stops counting when the power-off prevention stop count reaches its expiration time of 5 minutes. The heating control unit 43 outputs a heating stop command signal to the corresponding inverter circuit (B153), causing the right IH coil 9R to stop heating. The right display unit 16R also displays that the power-off prevention operation is in progress (E53). The audio notification unit 50 issues a voice message saying "Power-off prevention has been activated" (F53).

When a signal regarding an extension operation is sent from the external device input operation unit 210 based on an instruction from the user (I51), the external device control unit 240 stops the extension standby. Then, the external device communication unit 230 sends an extension notification signal based on the signal from the external device control unit 240 (L52). Also, the external device display unit 220 displays the fact that an extension notification has been sent based on the signal from the external device control unit 240 (J52). Then, the external device audio notification unit 260 issues a voice notification saying "An extension to prevent forgetting to turn off will be sent" based on the signal from the external device control unit 240 (K52).

The communication unit 51 receives an extension notification signal from the external device 200 (G52). The heating control unit 43 of the cooking device control unit 40 outputs a heating command signal to the corresponding inverter circuit (B152), and the right IH coil 9R heats the food (C51). At this time, the heating control unit 43 outputs a heating command signal to heat the food at heat power 3 when the power off prevention function was activated. At this time, 500 W of power is supplied, and power corresponding to heat power 3 is supplied to the inverter circuit (A52). In addition, the right heat power display unit 17R illuminates the right heat power display light-emitting unit 170R for the amount corresponding to heat power 3 to display the heat power (E52). The audio notification unit 50 issues a voice message saying "Heating will resume" based on the signal from the cooking device control unit 40 (F54). Then, the timer unit 52 of the cooking device control unit 40 resets the count of the power off prevention notice and starts counting again (B251).

In this way, in the cooking appliance 1 and cooking system 1a in embodiment 2, when the cooking appliance control unit 40 stops the heating in the right IH coil 9 to prevent forgetting to turn it off and then receives an extension notification signal from the communication unit 51, it resumes heating at the heat level set before the stop. Therefore, even if the cooking appliance 1 stops heating unintentionally, the user can resume heating. At this time, by resuming heating at the heat level set before the stop, the user can omit setting the heat level, which is convenient.

Embodiment 3.
The cooking device 1 in the first and second embodiments has been described as an electromagnetic induction cooking device, but is not limited thereto. The cooking device 1 can also be applied to a rice cooker, a microwave oven, a gas cooking device, and the like.

In addition, in the cooking systems of the first and second embodiments described above, the cooking appliance 1 has been described as communicating with the external device 200 via the wireless router 400 and the cloud server 300, but this is not limited to the above. The communication unit 51 of the cooking appliance 1 and the external device communication unit 230 of the external device 200 may communicate by directly sending and receiving signals. Furthermore, although the communication unit 51 of the cooking appliance control unit 40 and the wireless router 400 have been described as being connected via wireless communication, a wired connection may also be used.

Various aspects of this disclosure are summarized below as appendices.

(Appendix 1)
A heat source for heating an object to be heated;
An input operation unit for setting the heating of the heating source;
A control unit that sets a set heating power of the heating source in accordance with a setting of the input operation unit and controls the heating source;
A cooking appliance communication unit that communicates with an external device,
The control unit of the heating cooker causes the cooker communication unit to send a power-off prevention warning notification signal, which warns of the power-off prevention, to the external device when a first set time has elapsed since an operation related to heating settings is performed from the input operation unit, the first set time being shorter than a power-off prevention time set to prevent forgetting to stop heating.
(Appendix 2)
The heating cooker described in Appendix 1, wherein when an extension notification is given to extend the heating stop after the cooker communication unit sends the power-off prevention advance notification signal, the control unit continues heating the heating source even after the power-off prevention time has elapsed.
(Appendix 3)
The cooking device according to claim 2, wherein the control unit stops heating of the heating source when a second set time set for extension has elapsed since the extension notification was given.
(Appendix 4)
The cooking device according to claim 3, wherein the second set time is set to a different time based on the set heating power set in the heating source.
(Appendix 5)
A cooking appliance notification unit that issues a notification based on a signal from the control unit,
The heating cooker described in any one of Appendix 2 to Appendix 4, wherein, when the control unit determines after the extension notification that the set heat power of the heating source is equal to or greater than a preset threshold, the control unit sends a signal to the cooker notification unit to prompt the user to change the set heat power.
(Appendix 6)
The heating cooker according to claim 3 or 4, wherein the control unit causes the cooker communication unit to transmit the power-off prevention advance notification signal before the second set time has elapsed.
(Appendix 7)
The cooking device according to any one of claims 1 to 6, wherein the control unit stops heating of the heating source when it receives a stop notification from the cooking device communication unit after sending the power-off prevention advance notification signal.
(Appendix 8)
The heating cooker according to any one of Appendix 2 to Appendix 7, wherein the control unit does not accept signals related to heat setting and heat ON operation from the external device sent after a preset stop setting time has elapsed without the extension notification being sent.
(Appendix 9)
The heating cooker according to any one of appendices 1 to 8, wherein when a signal related to an extension notification is sent from the cooker communication unit after the control unit has stopped heating the heating source, the control unit resumes heating the heating source at the set heat power of the heating source before the heating source was stopped.
(Appendix 10)
A cooking device including a heating source for heating an object to be heated, an input operation unit for setting the heating of the heating source, a cooking device control unit for setting the set heat power of the heating source according to the setting of the input operation unit, and a cooking device communication unit for communicating with the outside;
an external device including an external device communication unit that communicates with the cooking appliance, an external device input operation unit that accepts operations, an external device control unit that performs processing based on the operations input from the external device input operation unit, and an external device notification unit that issues a notification based on a signal from the external device control unit;
The cooking appliance control unit is a heating cooking system in which, when a first set time has elapsed since an operation related to heating settings is performed from the input operation unit, the cooking appliance control unit causes a power-off prevention warning notification signal, which warns of the power-off prevention, to be sent from the cooking appliance communication unit to the external device.The power-off prevention warning notification signal warns of the power-off prevention when a first set time has elapsed, the first set time being shorter than the power-off prevention time set to prevent the heating from being forgotten to be stopped.
(Appendix 11)
The heating and cooking system described in Appendix 10, wherein when the external device communication unit receives the power-off prevention advance notification signal, the external device control unit is capable of accepting operations by the external device input operation unit, and when the external device input operation unit accepts an extension operation or stop operation, causes the external device communication unit to send an extension notification or stop notification signal.
(Appendix 12)
The heating and cooking system described in Appendix 11, wherein the external device control unit waits to accept the extension operation or the stop operation from the external device input operation unit until a standby time has elapsed since the external device communication unit received the power-off prevention advance notification signal.

1 Cooking device, 1a Cooking system, 2 Main body, 3 Top plate, 4 Heating port, 4C Central heating port, 4L Left heating port, 4R Right heating port, 5 Exhaust port cover, 6 Heating chamber, 7 Door, 8 Handle, 9 Induction heating source, 9C Central IH coil, 9L Left IH coil, 9R Right IH coil, 10 Opening/closing detection unit, 11 Microwave oscillator, 12 Radiant heat heating means, 12a Upper radiant heat heating means, 12b Lower radiant heat heating means, 13 Infrared sensor, 14 Thermistor sensor, 15 Input operation unit, 15L Left operation unit, 15M Central operation unit, 15R Right operation unit, 16 Display unit, 16L Left display unit, 16M Central display unit, 16R Right display unit, 17 Heating power display unit, 17L Left heating power display unit, 17M Central heating status display section, 17R Right heating power display section, 20 Main power switch, 20A Operation buttons, 21L, 21M, 21R Individual light-emitting section, 22 First display area, 23 Second display area, 24 Third display area, 30 Temperature sensor group, 34 Bus, 35 Processor, 36 Memory, 37 Input interface circuit, 38 Output interface circuit, 40 Cooking appliance control section, 41 Storage device, 42 Cooking condition data storage section, 43 Heating control section, 44 Communication control section, 50 Audio notification section, 51 Communication section, 52 Timer section, 53 Data acquisition section, 55 Limiting section, 57 Power supply circuit, 60 Cooking appliance notification section, 151L Left timer key, 151M Central heating start key, 151R Right timer key, 152L Left cooking selection key, 152M Central heating cancel key, 152R Right cooking selection key, 153L left start key, 153M first central heat down key, 153R right start key, 154L left heat down key, 154M first central heat up key, 154R right heat down key, 155L left heat up key, 155M second central heat down key, 155R right heat up key, 156M second central heat up key, 157M third central heat down key, 158M third central heat up key, 159M function setting key, 170L left heat power display light-emitting section, 170R right heat power display light-emitting section, 200 external device, 202 network, 203 network, 210 external device input operation section, 210C central setting area, 210F heat power setting area, 210L left setting area, 210R right setting area, 210S heating section selection area, 210T Timer setting area, 220 External device display section, 221D Heating power decrease mark, 221U Heating power increase mark, 222D Heating time reduction mark, 222U Heating time increase mark, 223 Heating power display area, 224 Heating time display area, 230 External device communication section, 240 External device control section, 250 External device storage section, 260 External device audio notification section, 300 Cloud server, 301 Recipe information providing server, 302 Recipe database, 303 Cloud control section, 400 Wireless router, 600 Kitchen furniture, HM Heating section, HM1 First heating means, HM2 Second heating means, HM3 Third heating means.

Claims (12)

A heat source for heating an object to be heated;
An input operation unit for setting the heating of the heating source;
A control unit that sets a set heating power of the heating source in accordance with a setting of the input operation unit and controls the heating source;
A cooking appliance communication unit that communicates with an external device,
The control unit of the heating cooker causes the cooker communication unit to send a power-off prevention warning notification signal, which warns of the power-off prevention, to the external device when a first set time has elapsed since an operation related to heating settings is performed from the input operation unit, the first set time being shorter than a power-off prevention time set to prevent forgetting to stop heating. The cooking device according to claim 1, wherein the control unit continues heating the heating source even after the forget-to-turn-off prevention time has elapsed when an extension notification is given to extend the heating stop after the cooking device communication unit transmits the forget-to-turn-off prevention advance notification signal. The cooking device according to claim 2, wherein the control unit stops the heating source when a second set time set for the extension has elapsed since the extension notification was given. The cooking device according to claim 3, wherein the second set time is set to a different time based on the set heat power set in the heating source. A cooking appliance notification unit that issues a notification based on a signal from the control unit,
The heating cooker according to claim 3, wherein when the control unit determines after the extension notification that the set heat power of the heating source is equal to or greater than a preset threshold, the control unit sends a signal to the cooker notification unit to prompt the user to change the set heat power. The heating cooker according to claim 3 or 4, wherein the control unit transmits the off-prevention advance notification signal to the cooker communication unit before the second set time has elapsed. The cooking device according to claim 1, wherein the control unit stops heating of the heat source when it receives a stop notification from the cooking device communication unit after transmitting the signal to notify the user of the forget-to-turn-off prevention. The cooking device according to claim 2, wherein the control unit does not accept signals related to heat setting and heat ON operation from the external device sent after the elapse of the preset stop time if the extension notification is not sent and the preset stop time has elapsed. The cooking device according to claim 1 or claim 7, wherein the control unit restarts heating of the heating source at the set heat power of the heating source before the heating source was stopped when a signal related to an extension notification is sent from the cooking device communication unit after the heating source has been stopped. A cooking device including a heating source for heating an object to be heated, an input operation unit for setting the heating of the heating source, a cooking device control unit for setting a set heat power of the heating source according to the setting of the input operation unit and controlling the heating source, and a cooking device communication unit for communicating with the outside;
an external device including an external device communication unit that communicates with the cooking appliance, an external device input operation unit that accepts operations, an external device control unit that performs processing based on the operations input from the external device input operation unit, and an external device notification unit that issues a notification based on a signal from the external device control unit;
The cooking appliance control unit is a heating cooking system in which, when a first set time has elapsed since an operation related to heating settings is performed from the input operation unit, the cooking appliance control unit causes a power-off prevention warning notification signal, which warns of the power-off prevention, to be sent from the cooking appliance communication unit to the external device.The power-off prevention warning notification signal warns of the power-off prevention when a first set time has elapsed, the first set time being shorter than the power-off prevention time set to prevent the heating from being forgotten to be stopped. The heating and cooking system according to claim 10, wherein the external device control unit enables the external device input operation unit to accept an operation when the external device communication unit receives the power-off prevention advance notification signal, and causes the external device communication unit to transmit an extension notification or stop notification signal when the external device input operation unit accepts an extension operation or stop operation. The cooking system according to claim 11, wherein the external device control unit waits to receive the extension operation or the stop operation from the external device input operation unit until a standby time has elapsed since the external device communication unit received the power-off prevention advance notification signal.

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