KR20230165681A - A home appliance apparatus and a power transmission apparatus for detecting blank heating - Google Patents

Abstract

According to an embodiment of the present disclosure, a wireless power transmission device for determining co-heating is disclosed, the wireless power transmission device comprising: a wireless power transmission unit including a transmission coil for wirelessly transmitting power and an inverter circuit for driving the transmission coil; At least one processor for controlling the inverter circuit; and a communication interface for communicating with the cooking appliance, wherein the communication interface is configured to block the heating operation through the transmission coil during and after the first predetermined time period during which the heating operation is performed from the cooking appliance through the transmission coil. 2. Receiving the temperature of the bottom surface of the cooking appliance and the temperature inside the cooking appliance for a predetermined time, the at least one processor controls the inverter circuit to block the heating operation through the transmitting coil after a first predetermined time, and a second It is determined whether the cooking appliance is co-heated based on the relationship between the temperature of the bottom surface and the temperature inside the cooking appliance for a predetermined period of time.

Description

Home appliances and power transmission devices for detecting air heating {A HOME APPLIANCE APPARATUS AND A POWER TRANSMISSION APPARATUS FOR DETECTING BLANK HEATING}

Embodiments of the present disclosure relate to a method for a wireless power transmission device to detect co-heating of a cooking appliance in the absence of a cooking object, and a wireless power transmission device employing such a method. Additionally, embodiments of the present disclosure relate to a method of detecting co-heating in a cooking appliance without an object to be cooked, and a cooking appliance employing such a method.

An induction range, a wireless power transmission device, is a cooking heating device that uses the principle of induction heating, and is also commonly called induction. Compared to gas ranges, induction ranges consume less oxygen and do not emit waste gases, which can reduce indoor air pollution and increase in indoor temperature. In addition, induction ranges use an indirect method of inducing heat to the heating object itself, and have high energy efficiency and stability. In addition, the induction range has the advantage of low risk of burns because heat is generated only from the heating object itself and the contact surface does not become hot. Therefore, the demand for induction ranges continues to increase recently.

However, when cooking with an induction range, the cooking device is heated through wireless power transmission, so compared to cooking with a gas range, it may not be easy to visually determine whether the cooking device is currently heating. As a result, the induction range can co-heat the cooking device without the object being cooked, which may cause the heater included in the cooking device to be damaged.

Therefore, when using an induction range, it is necessary for the induction range to recognize when the cooking device is being co-heated and to control the induction range to prevent co-heating.

In addition, even in cooking appliances that are heated by wire rather than wireless power transmission devices, when co-heating occurs, the cooking device needs to recognize co-heating and control to prevent overheating due to co-heating.

A wireless power transmission device for detecting co-heating according to an embodiment of the present disclosure includes a wireless power transmission unit including a transmission coil for wirelessly transmitting power and an inverter circuit for driving the transmission coil; At least one processor for controlling the inverter circuit; and a communication interface for communicating with the cooking appliance, wherein the communication interface is configured to block the heating operation through the transmission coil during and after the first predetermined time period during which the heating operation is performed from the cooking appliance through the transmission coil. 2. Receiving the temperature of the bottom surface of the cooking appliance and the temperature inside the cooking appliance for a predetermined period of time, the at least one processor controls the inverter circuit to block the heating operation through the transmitting coil for a second predetermined period of time, and 2 Determine whether the cooking appliance is co-heated based on the relationship between the temperature of the bottom surface of the cooking appliance and the temperature inside the cooking appliance for a predetermined period of time.

A co-heating detection method in a wireless power transmission device according to an embodiment of the present disclosure includes heating a cooking device for a first predetermined time through a transmission coil, and heating the cooking device through the transmission coil after the first predetermined time has elapsed. blocking the heating operation, obtaining the temperature of the bottom surface of the cooking appliance and the internal temperature of the cooking appliance during a first predetermined period of time and a second predetermined period of time during which the heating operation through the transmitting coil is blocked; and It may include detecting whether the cooking appliance is co-heated based on the relationship between the temperature and the internal temperature of the cooking appliance.

A cooking appliance for detecting co-heating according to an embodiment of the present disclosure includes: a first temperature sensor unit for sensing the internal temperature of the cooking appliance; a second temperature sensor unit for sensing the temperature of the bottom surface of the cooking appliance; a communication interface for communicating with a power transmission device; and at least one processor, wherein the at least one processor measures the internal temperature of the cooking appliance and the second temperature by the first temperature sensor unit during a second predetermined time during which the heating operation is blocked after the first predetermined time during which the heating operation is performed. A value obtained by obtaining the temperature of the bottom surface of the cooking appliance by the sensor unit and subtracting the internal temperature of the cooking appliance by the first temperature sensor unit from the temperature of the bottom surface of the cooking appliance by the second temperature sensor unit for a second predetermined period of time. When this rises, it is determined that the cooking appliance is co-heating, and when the communication interface determines that the cooking appliance is co-heating, it transmits a notification that the cooking appliance is co-heating to the power transmission device.

1 is a diagram for explaining a cooking system according to an embodiment of the present disclosure.
Figure 2 is a diagram for explaining types of cooking appliances according to an embodiment of the present disclosure.
Figure 3 is a diagram for explaining types of cooking appliances according to an embodiment of the present disclosure.
Figure 4 is a diagram for explaining coil arrangement in a cooking appliance according to an embodiment of the present disclosure.
FIG. 5A is a diagram for explaining a load structure in a cooking appliance according to an embodiment of the present disclosure.
FIG. 5B is a block diagram illustrating a path through which power is transmitted from a cooking appliance to a heater according to an embodiment of the present disclosure.
6A and 6B are block diagrams for explaining the function of a heating device (wireless power transmission device) according to an embodiment of the present disclosure.
Figure 7A is a block diagram for explaining the function of a cooking appliance according to an embodiment of the present disclosure.
Figure 7b is a block diagram for explaining a wired cooking appliance according to an embodiment of the present disclosure.
FIG. 8 is a diagram for explaining a wireless power transmission unit of a heating device (wireless power transmission device) according to an embodiment of the present disclosure.
FIG. 9A is a waveform diagram showing a power transmission pattern of a heating device for determining whether a cooking appliance is co-heated according to an embodiment of the present disclosure.
FIG. 9B is a diagram illustrating a power pattern output by a heating device to determine co-heating according to an embodiment of the present disclosure.
Figure 10 is a temperature change graph for determining co-heating according to an embodiment of the present disclosure.
Figure 11 is a graph showing temperature change according to the amount of water according to an embodiment of the present disclosure.
Figure 12 is a graph for determining co-heating when reheating a heating device according to an embodiment of the present disclosure.
FIG. 13A is a diagram showing the position of a first temperature sensor unit for sensing the temperature of food according to an embodiment of the present disclosure.
FIG. 13B is a diagram showing the position of a first temperature sensor unit for sensing the temperature of food according to an embodiment of the present disclosure.
FIG. 13C is a diagram showing the structure of a cooking appliance according to an embodiment of the present disclosure.
Figure 13d is a diagram showing a coffee dripper according to an embodiment of the present disclosure.
FIG. 14 is a flowchart illustrating a method by which a heating device identifies the location of a cooking appliance according to an embodiment of the present disclosure.
FIG. 15 is a diagram for explaining a power transmission pattern according to an embodiment of the present disclosure.
FIG. 16 is a diagram for explaining a power transmission pattern according to an embodiment of the present disclosure.
FIG. 17A is a flowchart illustrating a method of determining whether a cooking appliance is co-heated according to an embodiment of the present disclosure.
Figure 17b is a flowchart for explaining a method of determining whether a cooking appliance is co-heated according to an embodiment of the present disclosure.
Figure 17c is a flowchart for explaining a method of determining whether a cooking appliance is co-heated according to an embodiment of the present disclosure.
Figure 17d is a flowchart for explaining a method of determining whether a cooking appliance is co-heated according to an embodiment of the present disclosure.
Figure 17e is a flowchart for explaining a method of determining whether a cooking appliance is co-heated according to an embodiment of the present disclosure.
Figure 18 is a flowchart showing a method by which a heating device verifies the identification information and location of a cooking appliance according to an embodiment of the present disclosure.
Figure 19 is a diagram for explaining the operation of the heating device when a cooking appliance (small home appliance) is placed on the heating device according to an embodiment of the present disclosure.
FIG. 20 is a flowchart illustrating a method in which a heating device provides a GUI according to identification information of a cooking appliance according to an embodiment of the present disclosure.
FIG. 21 is a diagram illustrating an operation of a heating device according to an embodiment of the present disclosure to provide a GUI based on identification information of a cooking appliance and whether or not it is co-heating.
Figure 22 is a flowchart for explaining a method by which a heating device determines the position of a cooking appliance according to an embodiment of the present disclosure.
FIG. 23 is a flowchart illustrating a method in which a heating device identifies the location of a cooking appliance using an NFC tag included in the cooking appliance according to an embodiment of the present disclosure.
FIG. 24 is a diagram illustrating an operation in which a heating device identifies the location of a cooking appliance using an NFC tag included in the cooking appliance according to an embodiment of the present disclosure.
FIG. 25 is a flowchart illustrating a linked operation between a heating device and a cooking device when it is determined that the cooking device is being co-heated according to an embodiment of the present disclosure.
Figure 26 is a flowchart showing a method of determining co-heating while a heating device reheats a cooking appliance according to an embodiment of the present disclosure.
FIG. 27 is a diagram for explaining an operation of a heating device interoperating with a server device and a display device according to an embodiment of the present disclosure.
FIG. 28 is a diagram for explaining an operation of providing information about a heating device through a display device according to an embodiment of the present disclosure.
Figure 29 is a diagram for explaining the operation of providing a detection operation sequence and a setting screen for co-heating through a display device according to an embodiment of the present disclosure.
Figure 30 is a diagram for explaining the operation of notifying whether co-heating is performed through a display device according to an embodiment of the present disclosure.

Terms used in the present disclosure will be briefly described, and an embodiment of the present disclosure will be described in detail.

The terms used in the present disclosure have selected general terms that are currently widely used as much as possible while considering the function in an embodiment of the present disclosure, but this may vary depending on the intention or precedent of a person working in the art, the emergence of new technology, etc. there is. In addition, in certain cases, there are terms arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the corresponding embodiment of the present disclosure. Therefore, the terms used in this disclosure should be defined based on the meaning of the term and the overall content of this disclosure, rather than simply the name of the term.

Throughout the present disclosure, when a part “includes” a certain element, this means that it may further include other elements rather than excluding other elements, unless specifically stated to the contrary. In addition, terms such as "... unit" and "module" described in the present disclosure refer to a unit that processes at least one function or operation, which may be implemented as hardware or software, or as a combination of hardware and software. there is.

Below, with reference to the attached drawings, embodiments of the present disclosure will be described in detail so that those skilled in the art can easily practice them. However, an embodiment of the present disclosure may be implemented in various different forms and is not limited to the embodiment described herein. In order to clearly describe an embodiment of the present disclosure in the drawings, parts that are not related to the description are omitted, and similar parts are assigned similar reference numerals throughout the present disclosure.

According to an embodiment of the present disclosure, a method for preventing excessive heating of a cooking appliance by identifying a co-heating state of the cooking appliance and a wireless power transmission device employing the method can be provided.

According to an embodiment of the present disclosure, a method for preventing co-heating depending on the type of cooking appliance placed on the top plate of the wireless power transmission device and a wireless power transmission device therefor may be provided.

According to an embodiment of the present disclosure, a wireless power transmission device for determining whether a cooking appliance is co-heated includes: a wireless power transmission unit including a transmission coil for wirelessly transmitting power and an inverter circuit for driving the transmission coil; At least one processor for controlling the inverter circuit; and a communication interface for communicating with the cooking appliance, wherein the communication interface is configured to block the heating operation through the transmission coil during and after the first predetermined time period during which the heating operation is performed from the cooking appliance through the transmission coil. 2. Receiving the temperature of the bottom surface of the cooking appliance and the temperature inside the cooking appliance for a predetermined period of time, the at least one processor controls the inverter circuit to block the heating operation through the transmitting coil for a second predetermined period of time, and 2 Determine whether the cooking appliance is co-heated based on the relationship between the temperature of the bottom surface of the cooking appliance and the temperature inside the cooking appliance for a predetermined period of time.

In one embodiment, the at least one processor determines that the cooking appliance is co-heating when the value obtained by subtracting the temperature inside the cooking appliance from the temperature of the bottom increases for a second predetermined period of time.

In one embodiment, the at least one processor determines that the cooking appliance is not co-heating when the value obtained by subtracting the temperature inside the cooking appliance from the temperature on the bottom of the cooking appliance decreases for a second predetermined period of time.

In one embodiment, the at least one processor determines that the cooking appliance is co-heated if the slope corresponding to the temperature of the bottom surface minus the temperature inside the cooking appliance is a positive value during the second predetermined time period.

In one embodiment, the at least one processor determines that the cooking appliance is co-heated if the slope corresponding to the temperature of the bottom surface minus the temperature inside the cooking appliance is greater than a predetermined value during a second predetermined period of time. .

In one embodiment, the length of the first predetermined time may be within 10 seconds, and the length of the second predetermined time may be within 5 seconds.

In one embodiment, the at least one processor determines that the cooking appliance is co-heated when the temperature of the bottom surface increases for a second predetermined period of time.

In one embodiment, the at least one processor controls the inverter circuit to heat the cooking appliance through a predetermined power for determining co-heating, rather than the power corresponding to the user input, for a first predetermined time.

In one embodiment, the communication interface receives identification information of the cooking appliance from the cooking appliance, and the at least one processor changes the amount of predetermined power based on the identification information of the cooking appliance.

In one embodiment, when it is determined that the cooking appliance is not co-heating, the at least one processor controls the inverter circuit to output power corresponding to the user input after a second predetermined time.

In one embodiment, the at least one processor controls to transmit power for communication to the cooking appliance based on the user's heating start input.

In one embodiment, when the at least one processor determines that the cooking appliance is co-heating, it notifies the cooking appliance that it is co-heating through a communication interface.

In one embodiment, the communication interface is configured to connect the floor surface during a third predetermined period of time in which the heating operation through the transmission coil is blocked by at least one processor while the cooking device performs a heating operation through the transmission coil after the second predetermined time has elapsed. receives the temperature and the temperature inside the cooking appliance where the cooking object is accommodated, and the at least one processor determines whether the cooking appliance is co-heated based on the relationship between the temperature of the bottom surface and the temperature inside the cooking appliance during a third predetermined period of time. Additional judgment is made.

In one embodiment, the at least one processor further determines whether the cooking appliance is co-heated based on the change in temperature of the bottom surface in addition to the relationship between the temperature of the bottom surface and the temperature inside the cooking appliance during the third predetermined time period. do.

In one embodiment, the at least one processor is configured to perform co-heating when the temperature of the bottom surface of the cooking appliance increases for a third predetermined period of time and the value obtained by subtracting the temperature inside the cooking appliance from the temperature of the bottom surface increases. It is judged that it is happening.

In one embodiment, the wireless power transmission device further includes an output interface and a plurality of cooking zones, wherein at least one processor controls the inverter circuit to transmit predetermined power to the plurality of cooking zones, At least one cooking area where the cooking device is located is identified according to heavy load fluctuations, and when it is determined that the cooking device is co-heating based on the determination of whether the cooking device is co-heating, the cooking area identified through the output interface and whether or not it is co-heating Control to output.

In one embodiment, the first temperature sensor unit measures the temperature of the heater of the cooking appliance, and the temperature of the bottom surface is the temperature of the heater of the cooking appliance.

A method of preventing co-heating in a wireless power transmission device according to an embodiment of the present disclosure includes heating the cooking appliance for a first predetermined time through a transmitting coil, and heating the cooking appliance through the transmitting coil after the first predetermined time has elapsed. blocking the heating operation, obtaining the temperature of the bottom surface of the cooking appliance and the internal temperature of the cooking appliance during a first predetermined period of time and a second predetermined period of time during which the heating operation through the transmitting coil is blocked; and It may include determining whether the cooking appliance is co-heated based on the relationship between the temperature and the internal temperature of the cooking appliance.

In one embodiment, the step of determining whether the cooking appliance is co-heated based on the relationship between the temperature of the bottom surface and the internal temperature of the cooking appliance includes adjusting the temperature inside the cooking appliance from the temperature of the floor surface for a second predetermined period of time. If the deducted value increases, the cooking device is judged to be in empty heating.

In one embodiment, a cooking appliance that determines co-heating includes: a first temperature sensor unit for sensing the internal temperature of the cooking appliance; a second temperature sensor unit for sensing the temperature of the bottom surface of the cooking appliance; a communication interface for communicating with a wireless power transmission device; and at least one processor, wherein the at least one processor measures the internal temperature of the cooking appliance and the second temperature by the first temperature sensor unit during a second predetermined time during which the heating operation is blocked after the first predetermined time during which the heating operation is performed. A value obtained by obtaining the temperature of the bottom surface of the cooking appliance by the sensor unit and subtracting the internal temperature of the cooking appliance by the first temperature sensor unit from the temperature of the bottom surface of the cooking appliance by the second temperature sensor unit for a second predetermined period of time. When this rises, it is determined that the cooking device is co-heating, and when the communication interface determines that the cooking device is co-heating, it transmits a notification that the cooking device is co-heating to the wireless power transmission device.

In one embodiment, the cooking appliance further includes a relay or thermal fuse capable of blocking heating of the cooking appliance, and the at least one processor controls the relay or thermal fuse based on determining that the cooking appliance is being co-heated. This blocks the heating of the cooking device.

A computer-readable storage medium storing instructions for performing a co-heating prevention method in a wireless power transmission device according to an embodiment of the present disclosure as program code includes the steps of heating a cooking appliance for a first predetermined time through a transmission coil; , blocking the operation of heating the cooking appliance through the transmitting coil after the elapse of a first predetermined time, on the bottom surface of the cooking appliance during the first predetermined time and during the second predetermined time during which the heating operation through the transmitting coil is blocked. Store program code that performs the steps of obtaining the temperature and the internal temperature of the cooking appliance, and detecting whether the cooking appliance is co-heated based on the relationship between the temperature of the bottom surface and the internal temperature of the cooking appliance.

1 is a diagram for explaining a cooking system according to an embodiment of the present disclosure.

Referring to FIG. 1, a cooking system 100 according to an embodiment of the present disclosure may include a cooking appliance 1000 and a heating device 2000. Hereinafter, the heating device 2000 may be expressed as a wireless power transmission device or station. In one embodiment, the heating device 2000 may include not only a device that transmits power wirelessly to the cooking appliance 1000 but also a device that supplies power by wire. Not all of the components shown in Figure 1 are essential components. The cooking system 100 may be implemented with more components than the components shown, or the cooking system 100 may be implemented with fewer components than the illustrated components.

The cooking appliance 1000 may be a device for warming the contents (cooking object) inside the cooking appliance 1000. The contents of the cooking device 1000 may be liquids such as water, tea, coffee, soup, juice, wine, oil, etc., or may be solids such as butter, meat, vegetables, bread, rice, etc., but are not limited thereto.

According to an embodiment of the present disclosure, the cooking appliance 1000 may receive power wirelessly from the heating device 2000 using electromagnetic induction. Accordingly, the cooking appliance 1000 according to an embodiment of the present disclosure may not include a power line connected to a power outlet. In one embodiment, the cooking appliance 1000 may receive wired power from the heating device 2000. Accordingly, the cooking appliance 1000 according to an embodiment of the present disclosure may include a power line connected to an outlet.

According to an embodiment of the present disclosure, there may be various types of cooking appliances 1000 that wirelessly receive power from the heating device 2000. The cooking appliance 1000 may be a first type cooking appliance (1000a, see FIG. 2), which is a general induction heating (IH) vessel (hereinafter referred to as an IH vessel) containing a magnetic material, and may be a first type cooking appliance (1000a, see FIG. 2) containing a communication interface. There may be two types of cooking appliances (1000b, see FIG. 2). Hereinafter, the second type of cooking appliance 1000b including a communication interface may be defined as a small appliance. In addition, the second type of cooking appliance 1000b supplies power through a 2-1 type of cooking appliance 1000b-1 that receives power through a magnetic material (IH metal) (e.g., iron component) and a receiving coil. It may include a cooking appliance (1000b-2) of type 2-2. The cooking appliance (1000b-1) of the 2-1 type may have a magnetic field induced in the container (IH metal) itself, and the cooking appliance (1000b-2) of the 2-2 type may have a magnetic field induced in the receiving coil. there is. The type of the cooking appliance 1000 will be discussed in more detail later with reference to FIGS. 2 and 3 .

The cooking device 1000 may be a cooking device such as a pot, a frying pan, or a steamer, and may be an electric kettle, a teapot, a coffee machine (or coffee dripper), a toaster, a blender, an electric rice cooker, an oven, It may be a small home appliance such as an air fryer, but is not limited to this. Cooking appliance 1000 may include a cooker device. The cooker device can be a device into which a typical IH vessel can be inserted or removed. According to one embodiment, a cooker device may be a device that can automatically cook contents according to a recipe. A cooker device may be named a pot, rice cooker, or steamer depending on its purpose. For example, if an inner pot for cooking rice is inserted into the cooker device, the cooker device may be called a rice cooker. Hereinafter, the cooker device may be defined as a smart pot (or smart pot).

According to an embodiment of the present disclosure, when the cooking appliance 1000 is a small home appliance including a communication interface, the cooking appliance 1000 may communicate with the heating device 2000. The communication interface may include a short-range communication unit, a long-distance communication unit, etc. The short-range wireless communication interface includes a Bluetooth communication unit, BLE (Bluetooth Low Energy) communication unit, NFC (Near Field Communication interface), WLAN (Wi-Fi) communication unit, Zigbee communication unit, and infrared (IrDA) communication unit. , Infrared Data Association) communication department, WFD (Wi-Fi Direct) communication department, UWB (ultra wideband) communication department, Ant+ communication department, etc., but is not limited thereto. The remote communication unit may be used to communicate with a server device when the cooking device is remotely controlled by a server device (not shown) in an IoT (Internet of Things) environment. Telecommunications units may include the Internet, computer networks (e.g., LAN or WAN), and mobile communications units. The mobile communication unit may include, but is not limited to, a 3G module, 4G module, 5G module, LTE module, NB-IoT module, LTE-M module, etc.

The cooking appliance 1000 according to an embodiment of the present disclosure may transmit identification information of the cooking appliance 1000 to the heating device 2000 through a communication interface. The identification information of the cooking appliance 1000 is unique information for identifying the cooking appliance 1000, and includes Mac address, model name, and device type information (e.g., IH type ID or heater type ID, motor type ID). , may include at least one of manufacturer information (eg, Manufacture ID), serial number, and manufacturing time information (manufacturing date), but is not limited thereto. According to an embodiment of the present disclosure, the identification information of the cooking appliance 1000 may be expressed as a series of identification numbers, a series of identification symbols, a combination of numbers and the alphabet, a barcode, a QR code, or a 3D code.

Additionally, according to an embodiment of the present disclosure, the cooking appliance 1000 may transmit location information of the cooking appliance 1000 to the heating device 2000 through a communication interface. The location information of the cooking appliance 1000 may include information about the cooking zone (also expressed as a cooking zone) where the cooking appliance 1000 is located. In one embodiment, the heating device 2000 may independently determine which of the cooking zones of the heating device 2000 the cooking device 1000 is in regardless of the information sent from the cooking device 1000.

According to an embodiment of the present disclosure, the cooking appliance 1000 may transmit information to the server device through the heating device 2000. For example, the cooking device 1000 transmits information acquired by the cooking device 1000 itself (e.g., temperature information of the floor or heater included in the cooking device 1000, temperature information of contents, etc.) through short-distance wireless communication ( For example, it can be transmitted to the heating device 2000 through Bluetooth, BLE, etc.). At this time, the heating device 2000 can transmit the information obtained from the cooking appliance 1000 to the server device or mobile device by connecting to the server device or mobile device using a WLAN (Wi-Fi) communication unit or a long-distance communication unit (e.g., the Internet). It may be possible. Meanwhile, the server device may provide information obtained from the cooking appliance 1000 received from the heating device 2000 to the user through a mobile device connected to the server device. According to an embodiment of the present disclosure, the heating device 2000 is connected from the cooking appliance 1000 to the user's mobile terminal through device to device (D2D) communication (e.g., Wi-Fi Direct (WFD) communication or BLE communication). The obtained information can also be transmitted directly.

Meanwhile, according to an embodiment of the present disclosure, the cooking appliance 1000 directly sends information (e.g., temperature information of contents) obtained from the cooking appliance 1000 to the server device through a communication interface (e.g., WLAN (Wi-Fi) communication unit). etc.) can also be transmitted. In addition, the cooking appliance 1000 uses information acquired from the cooking appliance 1000 (e.g., temperature information of contents, etc.) through short-range wireless communication (e.g., Bluetooth, BLE, etc.) or D2D (device to device) communication (e.g., It can be transmitted directly to the user's mobile device through WFD (Wi-Fi Direct) communication.

The heating device 2000 according to an embodiment of the present disclosure may be a device that wirelessly transmits power to a heating object (eg, the cooking appliance 1000) located on the top plate using electromagnetic induction. The heating device 2000 may be expressed as an induction range or an electric range. The heating device 2000 may include an operating coil that generates a magnetic field for inductively heating the cooking device 1000. When the cooking appliance 1000 is a type 2-2 cooking appliance 1000b-2 that includes a receiving coil, the operating coil may be expressed as a transmitting coil.

Transmitting power wirelessly may mean transmitting power using a magnetic field induced in a receiving coil or IH metal (eg, iron component) through magnetic induction. For example, the heating device 2000 may generate an eddy current in the cooking appliance 1000 or induce a magnetic field in the receiving coil by flowing current through an operating coil (transmitting coil) to form a magnetic field.

According to one embodiment of the present disclosure, the heating device 2000 may include a plurality of operating coils. For example, when the top plate of the heating device 2000 includes a plurality of cooking zones, the heating device 2000 may include a plurality of operating coils corresponding to each of the plurality of cooking zones. Additionally, the heating device 2000 may include a high-output cooking area in which a first operating coil is provided on the inside and a second operating coil is provided on the outside. A high-power cooking zone may include three or more operating coils.

The top plate of the heating device 2000 according to an embodiment of the present disclosure may be made of tempered glass such as ceramic glass to prevent it from being easily damaged. Additionally, a guide mark may be provided on the top plate of the heating device 2000 to guide the cooking zone where the cooking device 1000 should be located.

The heating device 2000 according to an embodiment of the present disclosure is a cooking appliance 1000 including a magnetic material (e.g., a first type cooking appliance 1000a, a 2-1 type cooking appliance 1000b-1). It can be detected that it is placed on the top plate. For example, the heating device 2000 determines that the cooking device 1000 is located on the upper plate of the heating device 2000 based on a change in the current value (inductance) of the operating coil due to the approach of the cooking device 1000. It can be detected. Hereinafter, the mode in which the heating device 2000 detects the cooking appliance 1000 containing a magnetic material (IH metal) will be defined as the “IH container detection mode.”

According to one embodiment of the present disclosure, the heating device 2000 may include a communication interface for communicating with an external device. For example, the heating device 2000 may communicate with the cooking appliance 1000 and/or the server device through a communication interface. The communication interface may include a short-range communication unit (eg, NFC communication unit, Bluetooth communication unit, BLE communication unit, etc.), a long-distance communication unit, etc.

According to an embodiment of the present disclosure, the heating device 2000 can detect the cooking appliance 1000 located on the top plate through a communication interface. For example, the heating device 2000 can detect the cooking device 1000 by receiving a packet transmitted from the cooking device 1000 located on the top using short-range wireless communication (e.g., BLE, Bluetooth). . Since the second type of cooking appliance 1000b including a communication interface can be defined as a small home appliance (small object), hereinafter, the mode in which the heating device 2000 detects the cooking appliance 1000 through the communication interface is referred to as " It is defined as “small home appliance detection mode.”

According to an embodiment of the present disclosure, the heating device 2000 may receive identification information of the cooking appliance 1000 from the cooking appliance 1000 using short-range wireless communication (e.g., BLE communication or Bluetooth communication, etc.). there is. At this time, the cooking appliance 1000 may be a second type of cooking appliance (1000b, small home appliance) including a communication interface. In addition, when the heating device 2000 determines co-heating for each cooking zone, the heating device 2000 provides information about the second cooking zone in which co-heating is occurring, detected by the cooking device 1000, to the cooking device ( 1000) can be received along with identification information. Here, the second cooking area may be a cooking area where the cooking appliance 1000 is located among a plurality of cooking areas included in the heating device 2000. Referring to FIG. 1, the second cooking area may be a cooking area at the bottom left where the cooking appliance 1000 is located.

According to an embodiment of the present disclosure, the heating device 2000 may display information related to the cooking appliance 1000 through the user interface 2500. For example, when the cooking appliance 1000 is detected, the heating device 2000 displays the identification information of the cooking appliance 1000 and the location information of the cooking appliance 1000 on the display unit included in the user interface 2500. It can be displayed. Referring to FIG. 1, when a user places a cooking device 1000 (e.g., a coffee dripper) on the top of the heating device 2000, the heating device 2000 displays a coffee dripper icon 10 on the left side of the display unit. By displaying the position corresponding to the cooking area at the bottom, identification information of the cooking device 1000 (e.g., coffee dripper) and location information of the cooking device 1000 (e.g., located in the cooking area at the bottom left) are provided to the user. can do.

According to an embodiment of the present disclosure, the heating device 2000 may provide a graphical user interface (GUI) corresponding to the identification information of the cooking appliance 1000 through the output interface 2510 of the user interface 2500. . For example, if the cooking device 1000 is a coffee dripper, and the operation of the coffee dripper is completed, the heating device 2000 says “Your coffee is ready, have fun” as shown in the enlarged output interface 1 (101). The text can be output. In one embodiment, when the cooking appliance 1000 is co-heating, the cooking appliance 1000 output interface 2510, as shown in the enlarged output interface 2 103, reads, “There is no water in the coffee machine!” can be displayed, and a sentence with the same content can be notified to the user through audio output, or a simple sound alarm can be provided. In one embodiment, when the cooking appliance 1000 is being co-heated, the cooking area being co-heated is graphically displayed through the cooking appliance 1000 output interface 2510, as shown in the enlarged output interface 2 (103). It may also indicate that the cooking device 1000 is being co-heated. In addition, in order to attract the user's attention, the cooking area that is being co-heated is graphically displayed, such as by flashing a circular icon corresponding to the cooking area (103-1) that is being co-heated or having a different color from other cooking areas that are not being co-heated. By differentiating it from other cooking utensils, it is also possible to notify the user so that they can immediately know which cooking utensils are being co-heated.

According to the cooking system 100 according to an embodiment of the present disclosure, the user can use the simple operation of placing the cooking appliance 1000 on the heating device 2000 to determine the type of the cooking appliance 1000. and automatically identifies the location of the cooking appliance 1000, and determines that the cooking appliance 1000 is being co-heated when the heating operation is initiated to determine the location, type, and/or cooking appliance 1000 of the cooking appliance 1000. Since processing and heating can be provided to the user through an appropriate GUI, user convenience is increased. Hereinafter, the types of cooking appliance 1000 according to an embodiment of the present disclosure will be examined in detail with reference to FIGS. 2 and 3.

Figure 2 is a diagram for explaining types of cooking appliances according to an embodiment of the present disclosure.

Referring to FIG. 2, the cooking appliance 1000 is a first type cooking appliance 1000a, which is a general IH container containing a magnetic material (e.g., IH metal), and a second type cooking appliance capable of communicating with the heating device 2000. It may include a device 1000b. The second type of cooking appliance 1000b capable of communicating with the heating device 2000 may be defined as a small appliance. According to an embodiment of the present disclosure, the second type of cooking appliance 1000b includes a 2-1 type of cooking appliance 1000b-1 containing an IH metal (e.g., an iron component) and a receiving coil 1003. It can be classified as a 2-2 type of cooking appliance (1000b-2). Let’s take a look at each type.

The first type of cooking device 1000a may be inductively heated by the heating device 2000 and may be a container of various types including a magnetic material. Induction heating (IH) is a method of heating IH metal using the phenomenon of electromagnetic induction. For example, when alternating current is supplied to the working coil - or transmission coil - of the heating device 2000, a temporally varying magnetic field is induced inside the working coil. The magnetic field generated by the operating coil passes through the bottom of the cooking appliance 1000a. When a time-varying magnetic field passes through the IH metal (e.g., iron, steel, nickel, or various types of alloys) included in the bottom of the cooking device 1000a, a current rotating around the magnetic field is generated in the IH metal. The rotating current is called an eddy current, and the phenomenon in which the current is induced by a temporally changing magnetic field is called the electromagnetic induction phenomenon. When the cooking appliance 1000 is a first type cooking appliance 1000a, heat is generated at the bottom of the cooking appliance 1000a due to eddy current and resistance of IH metal (eg, iron). At this time, the contents of the cooking device 1000a may be heated by the heat generated.

The cooking appliance 1000b of the 2-1 type may include a pickup coil 1001, a power supply unit 1010, a control unit 1020, a communication interface 1030, and a sensor unit 1040. At this time, the power supply unit 1010, the control unit 1020, and the communication interface 1030 may be mounted on a printed circuit board (PCB) 1005. The pickup coil 1001 may be a low-power coil that generates power to operate the PCB 1005. When power is supplied to the PCB 1005 through the pickup coil 1001, components mounted on the PCB 1005 may be activated. For example, when power is supplied to the PCB 1005 through the pickup coil 1001, the power unit 1010, the control unit 1020, the communication interface 1030, and the sensor unit 1040 may be activated.

In one embodiment, the sensor unit 1040 may include a first temperature sensor unit 1041 and a second temperature sensor unit 1042. The first temperature sensor unit 1041 can measure the internal temperature of the cooking appliance 1000b-1. When there is a cooking object inside the cooking appliance 1000b-1, the first temperature sensor unit 1041 may measure the temperature of the cooking object. For example, when the cooking appliance 1000b-1 is a smart pot and the cooking object is water, the first temperature sensor unit 1041 may be a side temperature sensor that senses the side temperature of the smart pot. The side temperature sensor of the smart pot can measure the temperature of the water (internal temperature of the smart pot when there is no water), and the measured water temperature can be transmitted to the heating device 2000 through the communication interface 1030. In one embodiment, the side temperature sensor of the cooking appliance 1000b-1, such as a smart pot, may be a sensor that measures the internal temperature by penetrating from the outer side to the inner side of the cooking appliance 1000b-1.

The second temperature sensor unit 1042 may be used to measure the bottom surface temperature of the cooking appliance 1000b-1. In order to measure the bottom surface temperature of the cooking device 1000b-1, the second temperature sensor unit 1042 may be attached directly to the bottom surface, but to prevent damage to the second temperature sensor unit 1042, the bottom of the smart pot The second temperature sensor unit 1042 may be attached to the side of the smart pot close to the surface. The bottom surface temperature of the cooking appliance 1000b-1 measured by the second temperature sensor unit 1042 may be transmitted to the heating device 2000 through the communication interface 1030.

In one embodiment, the temperature sensor for measuring the temperature of the bottom surface of the cooking appliance 1000b-1, such as a smart pot, may be located on the top of the heating device 2000 rather than the cooking appliance 1000b-1. In this case, the temperature sensor for measuring the bottom surface temperature of the cooking appliance 1000b-1 will be a component of the heating device 2000, not a component of the cooking appliance 1000b-1. When the temperature sensor for measuring the bottom surface temperature of the cooking device 1000b-1 is located on the top of the heating device 2000, the heating device 1000 relies on communication to determine the bottom surface temperature of the cooking device 1000b-1. You can obtain it directly without doing anything.

The 2-2 type cooking appliance (1000b-2) may include a pickup coil (1001), a receiving coil (1003), a power supply unit (1010), a control unit (1020), a communication interface (1030), and a sensor unit (1040). You can. At this time, the power supply unit 1010, the control unit 1020, and the communication interface 1030 may be mounted on a printed circuit board (PCB) 1005. The pickup coil 1001 may be a low-power coil that generates power to operate the PCB 1005. When power is supplied to the PCB 1005 through the pickup coil 1001, components mounted on the PCB 1005 may be activated. For example, when power is supplied to the PCB 1005 through the pickup coil 1001, the power supply unit 1010, the control unit 1020, and the communication interface 1030 may be activated. According to one embodiment, when power is supplied to the PCB 1005 through the pickup coil 1001, the sensor unit 1040 is also activated in addition to the power unit 1010, the control unit 1020, and the communication interface 1030. You can.

In one embodiment, the sensor unit 1040 may include a first temperature sensor unit 1041 and a second temperature sensor unit 1042. The first temperature sensor unit 1041 can measure the internal temperature of the cooking appliance 1000b-2. When there is a cooking object inside the cooking appliance 1000b-2, the first temperature sensor unit 1041 may measure the temperature of the cooking object. For example, when the cooking device 1000b-2 is a coffee dripper and the cooking object is water, the first temperature sensor unit 1041 measures the temperature of the water (the internal temperature of the water heating unit that heats water in the coffee dripper when there is no water). It can be measured, and the measured temperature of the water (or the internal temperature of the water heater) can be transmitted to the heating device 2000 through the communication interface 1030. The second temperature sensor unit 1042 may be used to measure the temperature of a heater included in the load (not shown) of the cooking appliance 1000b-2. In order to measure the temperature of the heater, the second temperature sensor unit 1042 may be attached directly to the heater, but in order to prevent damage to the second temperature sensor unit 1042, the second temperature sensor unit (1042) is attached to a bracket integrated with the heater. 1042) can also be attached. The temperature of the bracket (or heater) measured by the second temperature sensor unit 1042 may be transmitted to the heating device 2000 through the communication interface 1030. Hereinafter, 'measuring the temperature of the heater' may include indirectly measuring the temperature of the heater by 'measuring the temperature of the bracket.' Therefore, the ‘temperature of the bracket’ can be seen to mean the ‘temperature of the heater.’

In one embodiment, the control unit 1020 may include at least one processor (not shown) capable of controlling the overall operation of the cooking appliance 1000.

Figure 3 is a diagram for explaining types of cooking appliances according to an embodiment of the present disclosure.

Referring to FIG. 3, the second type of cooking appliance 1000b may further include a communication coil 1002. The communication coil 1002 is a coil for performing short-distance wireless communication with the heating device 2000. Power transmitted through the communication coil 1002 may be referred to as communication power. For example, the communication coil 1002 may be an NFC antenna coil for NFC communication. In Figure 3, the number of windings of the communication coil 1002 is expressed as one, but it is not limited to this. The number of windings of the communication coil 1002 may be plural. For example, the communication coil 1002 may be wound by 5 to 6 turns. The NFC circuit connected to the NFC antenna coil can receive power through the pickup coil 1001. Below, we look at the above components in turn.

The power unit 1010 may be a switched mode power supply (SMPS) that receives alternating current power from the pickup coil 1001 and supplies direct current power to the control unit 1020 or the communication interface 1030. In addition, the power unit 1010 includes an inverter and /Or may include a converter.

The power supply unit 1010 may include a rectifier unit (rectifier circuit) that converts AC power to DC power. The rectifier converts alternating current voltage, whose size and polarity (positive or negative voltage) changes over time, into direct current voltage whose polarity is constant over time, and changes its size and direction (positive or negative current) depending on time. This changing alternating current can be converted into direct current with a constant magnitude. The rectifier may include a bridge diode. A bridge diode can convert an alternating current whose polarity changes with time into a positive voltage whose polarity is constant, and can convert an alternating current whose direction changes with time into a positive current whose direction is constant. The rectifier may include a DC link capacitor. A direct current connected capacitor can convert a positive voltage whose size changes with time into a direct current voltage of a constant size. The inverter connected to the direct current connection capacitor can generate alternating current power of various frequencies and sizes needed by the cooking device 1000b, and the converter can generate direct current power of various sizes needed by the cooking device 1000b. .

The control unit 1020 may include at least one processor, and the at least one processor controls the overall operation of the cooking appliance 1000b. For example, at least one processor included in the control unit 1020 may control the power unit 1010, the communication interface 1030, etc. The processor of the control unit 1020 may be a micro control unit (MCU).

According to an embodiment of the present disclosure, the control unit 1020 may identify the current location of the cooking appliance 1000b by detecting a power transmission pattern of power received from the heating device 2000 through the power supply unit 1010. For example, the control unit 1020 may determine which cooking zone the detected power transmission pattern is by comparing the detected power transmission pattern with pre-stored power transmission patterns for each cooking zone. At this time, the cooking appliance 1000b may further include a voltage sensor for detecting the power transmission pattern.

The control unit 1020 can control the communication interface 1030 to transmit or receive data. For example, the control unit 1020 communicates to transmit at least one of identification information of the cooking appliance 1000b, location information of the cooking appliance 1000b, and communication connection information of the cooking appliance 1000b to the heating device 2000. The interface 1030 can be controlled.

According to one embodiment of the present disclosure, the PCB 1005 of the cooking appliance 1000b may include a sensor unit 1040. In this case, the control unit 1020 may control the sensor unit 1040. For example, the control unit 1020 measures the temperature of the contents in the cooking appliance 1000b through the first temperature sensor unit 1041 of the sensor unit 1040 and controls the measurement result to be transmitted to the communication interface 1030. can do. Additionally, the control unit 1020 may control the first temperature sensor unit 1041 to monitor the temperature of the contents at regular intervals. Additionally, the control unit 1020 may control the communication interface 1030 to transmit temperature information of the contents to the heating device 2000 through short-distance wireless communication. According to one embodiment, the sensor unit 1040 is a device for measuring the temperature of the bottom surface or a heater (not shown) heated through the receiving coil 1003 when the cooking device 1000b is heated by induction heating. It may further include a second temperature sensor unit 1042, and the control unit 1020 may transmit the temperature measurement result by the second temperature sensor unit 1042 to the communication interface 1030. Additionally, the control unit 1020 may control the communication interface 1030 to transmit temperature information of the heater or floor to the heating device 2000 through short-distance wireless communication.

The communication interface 1030 allows communication between the cooking appliance 1000b and the heating device 2000, the cooking appliance 1000b and a server device (not shown), or the cooking appliance 1000b and a mobile terminal (not shown). It may contain one or more components. For example, the communication interface 1030 may include a short-range communication unit, a long-distance communication unit, etc.

The short-range wireless communication unit includes a Bluetooth communication unit, BLE (Bluetooth Low Energy) communication unit, NFC (Near Field Communication unit), WLAN (Wi-Fi) communication unit, Zigbee communication unit, and infrared (IrDA) communication unit. , infrared Data Association) communication unit, WFD (Wi-Fi Direct) communication unit, UWB (ultra wideband) communication unit, Ant+ communication unit, etc., but is not limited thereto. The long-distance communication unit may be used to communicate with a server device when the cooking device 1000b is remotely controlled by a server device (not shown) in an IoT (Internet of Things) environment. Telecommunications units may include the Internet, computer networks (e.g., LAN or WAN), and mobile communications units. The mobile communication unit may include, but is not limited to, a 3G module, 4G module, 5G module, LTE module, NB-IoT module, LTE-M module, etc.

According to an embodiment of the present disclosure, the cooking appliance 1000b may transmit information to the server device through the heating device 2000. For example, the cooking device 1000b transmits information acquired from the cooking device 1000b (e.g., temperature information of contents, temperature information of the floor or heater, etc.) through short-range wireless communication (e.g., Bluetooth, BLE, etc.). It can be transmitted to the heating device 2000. At this time, the heating device 2000 connects to the server device through the WLAN (Wi-Fi) communication unit and the long-distance communication unit (Internet), thereby providing information obtained from the cooking appliance 1000b (e.g., temperature information of contents, temperature of the floor or heater). information, etc.) can be transmitted to the server device. Meanwhile, the server device may provide information obtained from the cooking appliance 1000b received from the heating device 2000 to the user through a mobile terminal connected to the server device. According to an embodiment of the present disclosure, the heating device 2000 is connected to the cooking device 1000b from the user's mobile terminal through device to device (D2D) communication (e.g., Wi-Fi Direct (WFD) communication or BLE communication). The obtained information can also be transmitted directly.

Meanwhile, not all of the components shown in FIGS. 2 and 3 are essential components. The cooking appliance 1000b may be implemented with more components than the illustrated components, or the cooking appliance 1000b may be implemented with fewer components. For example, the cooking appliance 1000b includes a power unit 1010, a control unit 1020, a communication interface 1030, a sensor unit 1040, a user interface, a memory, a battery, a heater, an insulating pad and bracket, a relay, and a thermal unit. A fuse (thermal fuse), etc. may be further included.

Here, the user interface may include an input interface that receives user input and an output interface that outputs information. The output interface is for output of video signals or audio signals. The output interface may include a display unit, an audio output unit, a vibration motor, etc. When the display unit and the touch pad form a layered structure to form a touch screen, the display unit can be used as an input interface in addition to an output interface. The audio output unit may output audio data received through the communication interface 1030 or stored in memory (not shown).

According to an embodiment of the present disclosure, when the cooking appliance 1000b includes a battery, the battery can be used as auxiliary power. For example, when the cooking appliance 1000b provides a keep-warm function, the cooking appliance 1000b can monitor the temperature of the contents using battery power even if power transmission from the heating device 2000 is stopped. When the temperature of the contents falls below the critical temperature, the cooking appliance 1000b may transmit a notification to the mobile terminal using battery power or request power transmission from the heating device 2000.

In addition, before the cooking appliance 1000b receives power from the heating device 2000, the communication interface 1030 is driven using battery power and a wireless communication signal is transmitted to the heating device 2000, thereby (2000), the cooking device 1000b may be recognized in advance. Batteries may include secondary batteries (e.g., lithium ion batteries, nickel/cadmium batteries, polymer batteries, nickel hydride batteries, etc.), super capacitors, etc., but are not limited thereto. A supercapacitor is a capacitor with a very large storage capacity and is also called an ultra-capacitor or ultra-high capacity capacitor.

According to an embodiment of the present disclosure, when the cooking appliance 1000b includes a memory, the memory may store a program for processing and controlling the processor included in the control unit 1020, and input/output data ( For example, power transmission pattern information for each cooking area, identification information of the cooking appliance 1000b, etc.) may be stored.

Memory includes flash memory type, hard disk type, multimedia card micro type, card type memory (e.g. SD or XD memory, etc.), RAM Random Access Memory) Among SRAM (Static Random Access Memory), ROM (Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM (Programmable Read-Only Memory), magnetic memory, magnetic disk, and optical disk. It may include at least one type of storage medium. Programs stored in memory can be classified into a plurality of modules according to their functions. At least one artificial intelligence model may be stored in the memory.

Meanwhile, according to an embodiment of the present disclosure, the second type of cooking appliance 1000b includes a 2-1 type of cooking appliance 1000b-1 including an IH metal (e.g., iron component) and a receiving coil 1003. ) may include a cooking appliance (1000b-2) of type 2-2 including. In the case of the 2-1 type cooking appliance 1000b-1, like the first type cooking appliance 1000a, which is a general IH container, an eddy current is generated in the IH metal of the cooking appliance 1000b-1, thereby causing the cooking appliance (1000b-1) The contents inside may be heated. The cooking appliance (1000b-1) of type 2-1 may include a smart kettle, an electric rice cooker (smart pot), etc., but is not limited thereto.

The 2-2 type cooking appliance 1000b-2 may further include a receiving coil 1003 and a load 1004 than the 2-1 type cooking appliance 1000b-1. The receiving coil 1003 may be a coil that receives wireless power transmitted from the heating device 2000 and drives the load 1004. For example, the magnetic field generated from the current flowing in the transmitting coil (operating coil, 2120) of the heating device 2000 passes through the receiving coil 1003, and an induced current flows in the receiving coil 1003, providing energy to the load 1004. can be supplied. Hereinafter, the induced current flowing in the receiving coil 1003 due to the magnetic field generated in the transmitting coil can be expressed as the receiving coil 1003 receiving wireless power from the transmitting coil. According to an embodiment of the present disclosure, the receiving coil 1003 may have a concentric circle shape or an elliptical shape, but is not limited thereto. According to an embodiment of the present disclosure, there may be a plurality of receiving coils 1003. For example, the 2-2 type cooking appliance 1000b-2 may include a receiving coil for a warming heater and a receiving coil for a heating heater. At this time, the receiving coil for the heating heater may drive the heating heater, and the receiving coil for the insulating heater may drive the insulating heater.

According to an embodiment of the present disclosure, in the 2-2 type cooking appliance 1000b-2, the pickup coil 1001, the communication coil 1002, and the receiving coil 1003 may be disposed on the same layer. For example, referring to FIG. 3, the communication coil 1002 may be placed on the innermost side, the receiving coil 1003 may be placed in the middle, and the pickup coil 1001 may be placed on the outermost side, but is not limited to this. no.

Figure 4 is a diagram for explaining coil arrangement in a cooking appliance according to an embodiment of the present disclosure.

Referring to 410 of FIG. 4, the receiving coil 1003 may be placed at the innermost part, the pickup coil 1001 may be placed at the middle, and the communication coil 1002 may be placed at the outermost end. Additionally, referring to 420 of FIG. 4, the receiving coil 1003 may be placed at the innermost part, the communication coil 1002 may be placed at the middle, and the pickup coil 1001 may be placed at the outermost end. Meanwhile, although not shown, they may be arranged in the following order starting from the innermost part.

1) Pickup coil (1001) - Receiving coil (1003) - Communication coil (1002)

2) Pickup coil (1001) - Communication coil (1002) - Receiving coil (1003)

3) Communication coil (1002) - Pickup coil (1001) - Receiving coil (1003)

According to an embodiment of the present disclosure, in the 2-2 type cooking appliance 1000b-2, the pickup coil 1001, the communication coil 1002, and the receiving coil 1003 may be arranged in a stacked structure. For example, referring to 430 in FIG. 4, the pickup coil 1001 and the communication coil 1002, which do not have a large number of turns, form one layer, and the receiving coil 1003 forms another layer, so that the two layers are stacked. You can.

The load 1004 may include, but is not limited to, a heater, an insulating pad and bracket, a bracket temperature sensor, a motor, or a battery to be charged. The heater is for heating the contents in the 2-2 type cooking device (1000b-2). The shape of the heater may vary, and the material of the outer shell (e.g., iron, stainless steel, copper, aluminum, incoloy, inconel, etc.) may also vary. According to an embodiment of the present disclosure, the 2-2 type cooking appliance 1000b-2 may include a plurality of heaters. For example, the 2-2 type cooking appliance 1000b-2 may include a warming heater and a heating heater. Insulating heaters and heating heaters can produce different levels of heating output. For example, the heating level of the insulation heater may be lower than the heating level of the heating heater.

According to an embodiment of the present disclosure, the 2-2 type cooking appliance 1000b-2 may further include a resonance capacitor (not shown) between the receiving coil 1003 and the load 1004. At this time, the resonance value may be set differently according to the amount of power required by the load 1004. In addition, according to an embodiment of the present disclosure, the 2-2 type cooking appliance 1000b-2 includes a switch unit (e.g., relay switch or semiconductor switch) for turning on/off the operation of the load 1004 ( 1015) may be further included. When the control unit 1020 of the PCB 1005 receives a co-heating notification that the cooking appliance 1000b-2 is being co-heated from the heating device 2000, it controls the switch unit 1015 to block the operation of the receiving coil 1003. You can.

According to an embodiment of the present disclosure, the 2-2 type cooking appliance (1000b-2) is a heater-applied product (e.g., a coffee machine (coffee dripper), toaster), a motor-applied product (e.g., a blender), etc. It may include, but is not limited to this.

Meanwhile, according to an embodiment of the present disclosure, the first type of cooking device 1000a includes an IH metal, so it can be detected in the IH container detection mode of the heating device 2000, but the first type of cooking device 1000a ( 1000a) cannot communicate with the heating device 2000, so it may not be detected in the small home appliance detection mode of the heating device 2000. Since the cooking device 1000b-1 of the 2-1 type includes an IH metal, it can be detected in the IH container detection mode of the heating device 2000, and the cooking device 1000b-1 of the 2-1 type includes Since communication with the heating device 2000 is also possible, it can be detected even in the small home appliance detection mode of the heating device 2000. Since the 2-2 type cooking device 1000b-2 does not contain IH metal, it is not detected in the IH container detection mode of the heating device 2000, but the 2-2 type cooking device 1000b-2 Since it can communicate with the heating device 2000, it can be detected in the small home appliance detection mode of the heating device 2000. Hereinafter, in this specification, unless otherwise specifically mentioned, the cooking appliance 1000 refers to a second type of cooking appliance 1000b capable of a communication function.

FIG. 5A is a diagram for explaining the structure of a load in a cooking appliance according to an embodiment of the present disclosure.

The cooking appliance 1000 according to FIG. 5A is a type 2-2 cooking appliance 1000b-2, and the cooking appliance 1000 is heated by heating the heater by the receiving coil 1003.

The load 1004 monitors the temperature of the heater 1014 heated by the receiving coil 1003, the insulation pad 1024 located between the heater 1014 and the bracket 1034, the bracket 1034, and the bracket 1034. It may include a second temperature sensor unit 1042 for sensing, but is not limited thereto.

The heater 1014 is used to heat the contents in the cooking device 1000, as discussed above. The shape of the heater 1014 may vary, and the material of the outer shell (eg, iron, stainless steel, copper, aluminum, incoloy, inconel, etc.) may also vary.

The insulation pad 1024 serves to insulate the bracket 1034 and the heater 1014 to prevent the risk of the bracket 1034 not being insulated from the heater 1014 when the bracket 1034 is made of a conductive material. do.

The bracket 1034 includes a second temperature sensor unit 1042 to indirectly sense the temperature of the heater 1014. In addition, the bracket 1034 is used to fix the structure so that the heater 1004 can be combined with the cooking device 1000, and evenly distributes the heat generated from the receiving coil 1003 so that the receiving coil 1003 It can be used as a heat sink to prevent heat from concentrating in one place.

The second temperature sensor unit 1042 may also be referred to as a bracket temperature sensor or a heater temperature sensor and senses the temperature of the bracket or heater. The temperature information of the bracket sensed by the second temperature sensor unit 1042 may be transmitted to the heating device 2000 through the communication interface 1030. Since the second temperature sensor unit 1042 mainly senses the temperature of the heater 1014, it is preferable to be attached directly to the heater 1014, unlike in FIG. 5. However, the second temperature sensor unit 1042 is connected to the heater 1014. ), there is a risk that the second temperature sensor unit 1042 may be damaged if the heater 1014 malfunctions and is heated. Therefore, by attaching the second temperature sensor unit 1042 to the bracket 1034, damage to the second temperature sensor unit 1042 can be prevented while indirectly measuring the temperature of the heater 1014.

FIG. 5B is a block diagram illustrating a path through which power is transmitted from a cooking appliance to a heater according to an embodiment of the present disclosure.

Referring to FIG. 5B, when the cooking appliance 1000 receives wireless power from the heating device 2000 through the receiving coil 1003, resonance is generated between the inductance and the capacitor through the resonance unit 1006 to load AC power. (1004). Resonant AC power is used to heat the heater 1014 through the relay 1007 and the thermal fuse 1008. In order to protect the heater 1014 of the cooking appliance 1000, the control unit 1020 of the cooking appliance 1000 controls the relay 1007 or the thermal fuse 1008 in an emergency to reduce the power delivered to the heater 1014. You can block it. According to one embodiment, the cooking appliance 1000, which has received a co-heating notification from the heating device 2000, controls the relay 1007 or the thermal fuse 1008 through the control unit 1020 to transmit power to the heater 1014. can be blocked. Alternatively, the cooking device 1000 independently detects whether the cooking device 1000 is co-heated and controls the relay 1007 or the thermal fuse 1008 through the control unit 1020 to reduce the power delivered to the heater 1014. You can block it.

Hereinafter, with reference to FIGS. 6A and 6B, the heating device 2000 that transmits power to the cooking appliance 1000 will be looked at in detail.

6A and 6B are block diagrams for explaining the function of a heating device (wireless power transmission device) according to an embodiment of the present disclosure.

As shown in FIG. 6A, the heating device 2000 according to an embodiment of the present disclosure may include a wireless power transmitter 2100, a processor 2200, a communication interface 2300, and an output interface 2510. You can. However, not all of the illustrated components are essential components. The heating device 2000 may be implemented with more components than the illustrated components, or may be implemented with fewer components.

As shown in FIG. 6B, the heating device 2000 according to an embodiment of the present disclosure includes a wireless power transmitter 2100, a processor 2200, a communication interface 2300, a sensor unit 2400, and a user interface. (2500) and may further include memory (2600).

Below, we look at the above components in turn.

The wireless power transmitter 2100 may include a driver 2110 and an operating coil 2120, but is not limited thereto. The driving unit 2110 may receive power from an external power source and supply current to the operating coil 2120 according to a driving control signal from the processor 2200. The driving unit 2110 may include an EMI (Electro Magnetic Interference) filter 2111, a rectifier circuit 2112, an inverter circuit 2113, a distribution circuit 2114, a current detection circuit 2115, and a driving processor 2116. However, it is not limited to this.

The EMI filter 2111 blocks high-frequency noise included in AC power supplied from an external source and can pass AC voltage and AC current of a predetermined frequency (for example, 50 Hz or 60 Hz). A fuse and relay may be provided between the EMI filter 2111 and the external power source to block overcurrent. AC power from which high-frequency noise has been blocked by the EMI filter 2111 is supplied to the rectifier circuit 2112.

The rectifier circuit 2112 can convert alternating current power into direct current power. For example, the rectifier circuit 2112 converts an alternating current voltage whose size and polarity (positive or negative voltage) changes over time into a direct current voltage whose size and polarity are constant, and whose size and direction (positive or negative voltage) changes over time. Alternating current (current or negative current) of which the magnitude changes can be converted into direct current with a constant magnitude. Rectifier circuit 2112 may include a bridge diode. For example, rectifier circuit 2112 may include four diodes. A bridge diode can convert an alternating current whose polarity changes with time into a positive voltage whose polarity is constant, and can convert an alternating current whose direction changes with time into a positive current whose direction is constant. The rectifier circuit 2112 may include a DC link capacitor. A direct current connected capacitor can convert a positive voltage whose size changes with time into a direct current voltage of a constant size.

The inverter circuit 2113 may include a switching circuit that supplies or blocks a driving current to the operating coil 2120, and a resonance circuit that resonates with the operating coil 2120. The switching circuit may include a first switch and a second switch. The first switch and the second switch may be connected in series between the plus line and minus line output from the rectifier circuit 2112. The first switch and the second switch may be turned on or off according to a driving control signal from the driving processor 2116.

The inverter circuit 2113 can control the current supplied to the operating coil 2120. For example, the magnitude and direction of the current flowing in the operating coil 2120 may change depending on the turn-on/turn-off of the first and second switches included in the inverter circuit 2113. In this case, alternating current may be supplied to the operating coil 2120. Alternating current is supplied to the operating coil 2120 according to the switching operations of the first switch and the second switch. In addition, the longer the switching period of the first switch and the second switch (e.g., the smaller the switching frequency of the first switch and the second switch), the larger the current supplied to the operating coil 2120 may be. The intensity of this output magnetic field (output of the heating device 2000) may increase.

When the heating device 2000 includes a plurality of operating coils 2120, the driver 2110 may include a distribution circuit 2114. The distribution circuit 2114 may include a plurality of switches that pass or block the current supplied to the plurality of operating coils 2120, and the plurality of switches are turned on or turned according to the distribution control signal of the driving processor 2116. It can be turned off.

The current detection circuit 2115 may include a current sensor that measures the current output from the inverter circuit 2113. The current sensor may transmit an electrical signal corresponding to the measured current value to the driving processor 2116.

The driving processor 2116 may determine the switching frequency (turn-on/turn-off frequency) of the switching circuit included in the inverter circuit 2113 based on the output intensity (power level) of the heating device 2000. The driving processor 2116 may generate a driving control signal for turning on/off the switching circuit according to the determined switching frequency.

The operating coil 2120 may generate a magnetic field for heating the cooking appliance 1000. For example, when a driving current is supplied to the operating coil 2120, a magnetic field may be induced around the operating coil 2120. When a current whose size and direction changes with time, that is, an alternating current, is supplied to the operating coil 2120, a magnetic field whose size and direction changes with time may be induced around the operating coil 2120. The magnetic field around the operating coil 2120 may pass through a top plate made of tempered glass and reach the cooking appliance 1000 placed on the top plate. Due to a magnetic field whose size and direction changes with time, an induced magnetic field may be formed in the receiving coil 1003 of the cooking appliance 1000 including the receiving coil 1003, and the induced magnetic field may be applied to the receiving coil 1003. Current may flow and heat the load 1004.

The processor 2200 controls the overall operation of the heating device 2000. The processor 2200 can control the wireless power transmitter 2100, communication interface 2300, sensor unit 2400, user interface 2500, and memory 2600 by executing programs stored in the memory 2700. there is.

According to an embodiment of the present disclosure, the heating device 2000 may be equipped with an artificial intelligence (AI) processor. Artificial intelligence (AI) processors may be manufactured in the form of dedicated hardware chips for artificial intelligence (AI), or may be manufactured as part of an existing general-purpose processor (e.g. CPU or application processor) or graphics-specific processor (e.g. GPU). It may also be mounted on the heating device 2000.

According to an embodiment of the present disclosure, the processor 2200 controls the inverter circuit 2113 to supply power at a preset level to the cooking appliance 1000 in order to drive the communication interface 1030 of the cooking appliance 1000. And, when the communication interface 1030 of the cooking appliance 1000 is driven, the first wireless communication signal transmitted from the communication interface 1030 of the cooking appliance 1000 can be received.

In one embodiment, when the processor 2200 detects the first wireless communication signal transmitted from the cooking appliance 1000, the inverter causes the plurality of operating coils 2120 to generate a magnetic field according to a plurality of different power transmission patterns. The circuit 2113 can be controlled. The plurality of power transmission patterns may be set differently based on at least one of the maintenance time of the power transmission section, the maintenance time of the power cutoff section, and the power level. For example, the processor 2200 controls the inverter circuit 2113 to transmit power by combining the maintenance time of the power transmission section, the maintenance time of the power cutoff section, or power level differently for each cooking area of the heating device 2000. can do.

In addition, the processor 2200 includes information about the first cooking area corresponding to the first power transmission pattern detected at the location of the cooking appliance 1000 among the plurality of power transmission patterns and identification information of the cooking appliance 1000. A second wireless communication signal is received from the cooking appliance 1000 through the communication interface 1300, and based on the second wireless communication signal, the cooking appliance 1000 is located in the first cooking zone among the plurality of cooking zones. Related information and identification information of the cooking appliance 1000 can be output through the output interface 2510. In this way, the heating device 2000 can use a plurality of power transmission patterns to identify the cooking area where the cooking appliance 1000 is located.

In one embodiment, the processor 2200 may receive from the cooking appliance 1000 whether the cooking appliance 1000 is being co-heated. The processor 2200 may output an indication that the cooking device 1000 is being co-heated through the output interface 2510.

According to an embodiment of the present disclosure, the processor 2200 performs a communication connection with the cooking appliance 1000 based on communication connection information included in the second wireless communication signal, and establishes a communication connection with the cooking appliance 1000. The inverter circuit 2113 can be controlled to transmit the first level of power (low power) to the pickup coil 1001 of the cooking appliance 1000. Additionally, as an operation command for the cooking appliance 1000 is received from the user, the processor 2200 transmits a second level of power (large power) to the cooking appliance 1000 to operate the cooking appliance 1000. The inverter circuit 2113 may be controlled to do so. At this time, the first level power is less power than the second level power. In one embodiment, the processor 2200 transmits a second level of power, which is a separate level different from the user input level input by the user to heat the cooking appliance 1000, to the cooking appliance 1000 to heat the cooking appliance 1000. 1000) can be determined whether it is being co-heated. For example, the user input level input by the user to heat the cooking device 1000 is 1500W, and the processor 2200 first responds to the user input level to determine whether the cooking device 1000 is being co-heated. Instead of heating the cooking device 1000 with 1500W, the cooking device 1000 can be heated with 800W, which is the power for determining empty heating.

The communication interface 2300 may include one or more components that enable communication between the heating device 2000 and the cooking appliance 1000 or between the heating device 2000 and the server device. For example, the communication interface 2300 may include a short-range communication unit 2310 and a long-distance communication unit 2320. The short-range wireless communication interface includes a Bluetooth communication unit, BLE (Bluetooth Low Energy) communication unit, Near Field Communication interface, WLAN (Wi-Fi) communication unit, Zigbee communication unit, and infrared (IrDA) communication unit. Data Association) communication unit, WFD (Wi-Fi Direct) communication unit, UWB (Ultra Wideband) communication unit, Ant+ communication unit, etc., but is not limited thereto. The long-distance communication unit 2320 may be used to communicate with a server device (not shown) when a cooking appliance is remotely controlled by a server device (not shown) in an IoT (Internet of Things) environment. Telecommunications units may include the Internet, computer networks (e.g., LAN or WAN), and mobile communications units. The mobile communication unit transmits and receives wireless signals to at least one of a base station, an external terminal, and a server on a mobile communication network. Here, the wireless signal may include various types of data according to voice call signals, video call signals, or text/multimedia message transmission and reception. The mobile communication unit may include, but is not limited to, a 3G module, 4G module, LTE module, 5G module, 6G module, NB-IoT module, LTE-M module, etc.

The sensor unit 2400 may include a container detection sensor 2410 and a temperature sensor 2420, but is not limited thereto.

The container detection sensor 2410 may be a sensor that detects that the cooking appliance 1000 is placed on the top plate. For example, the container detection sensor 2410 may be implemented as a current sensor, but is not limited thereto. The container detection sensor 2410 may be implemented with at least one of a proximity sensor, a touch sensor, a weight sensor, a temperature sensor, an illumination sensor, and a magnetic sensor.

The temperature sensor 2420 may detect the temperature of the bottom surface or the temperature of the top plate of the cooking appliance 1000 placed on the top plate. The cooking device 1000 is inductively heated by the operating coil 2120 and may overheat depending on the material. Accordingly, the heating device 2000 may detect the temperature of the cooking appliance 1000 placed on the top plate or the top plate, and block the operation of the operating coil 2120 when the cooking appliance 1000 overheats. In one embodiment, temperature sensor 2420 may be installed adjacent to actuating coil 2120. For example, the temperature sensor 2420 may be located at the exact center of the operating coil 2120. In one embodiment, the processor 2200 may detect co-heating based on the temperature of the floor measured by the temperature sensor 2420 and the temperature inside the cooking appliance 1000 received from the cooking appliance 1000. .

According to an embodiment of the present disclosure, the temperature sensor 2420 may include a thermistor whose electrical resistance value changes depending on temperature. For example, the temperature sensor 2420 may be a Negative Temperature Coefficient (NTC) temperature sensor, but is not limited thereto. The temperature sensor 2420 may be a Positive Temperature Coefficient (PTC) temperature sensor.

The user interface 2500 may include an output interface 2510 and an input interface 2520. The output interface 2510 is for outputting audio signals or video signals and may include a display unit and an audio output unit.

When the display unit and the touch pad form a layered structure to form a touch screen, the display unit can be used as an input interface in addition to an output interface. The display unit includes a liquid crystal display, a thin film transistor-liquid crystal display, a light-emitting diode (LED), an organic light-emitting diode, and a flexible display. It may include at least one of a display, a 3D display, and an electrophoretic display. And depending on the implementation form of the heating device 2000, the heating device 2000 may include two or more display units. For example, if the cooking appliance 1000 in the cooking zone of a specific area is co-heating, the display unit may display an alarm phrase in text format such as “the cooking appliance in cooking zone 2 is co-heating” and By displaying the corresponding graphic icon differently from other cooking areas - for example, blinking only the cooking area that is being co-heated - the user can easily tell that the cooking device 1000 in the corresponding cooking area is being co-heated. You can also make it recognizable.

The audio output unit may output audio data received from the communication interface 2300 or stored in the memory 2600. Additionally, the sound output unit may output sound signals related to functions performed by the heating device 2000. For example, the audio output unit can output voice information such as “The cooking appliance in cooking zone 2 is co-heating” so that the user can easily know which cooking zone’s cooking appliance is co-heating. The sound output unit may include a speaker, buzzer, etc.

According to an embodiment of the present disclosure, the output interface 2510 may display information about the cooking appliance. For example, the output interface 2510 may output a graphical user interface (GUI) corresponding to identification information of the cooking appliance 1000. Based on the identification information, the output interface 2510 can output the identification information of the current cooking appliance 1000 and whether the cooking appliance 1000 is being co-heated, and in which cooking area the cooking appliance 1000 is being co-heated. It is also possible to output whether it is heating or not. For example, the output interface 2510 may output the message “The coffee dripper is being co-heated in cooking zone 2” through the display unit or sound output unit.

According to an embodiment of the present disclosure, the processor 2200 controls the inverter circuit 2113 so that the plurality of operating coils 2120 generate magnetic fields according to a plurality of different power transmission patterns, and then the cooking device ( If information about the cooking area where 1000 is located is not received, the output interface 2510 may output a notification to confirm the location of the cooking appliance 1000. Additionally, according to an embodiment of the present disclosure, the output interface 2510 may output a notification to confirm the location of the cooking appliance 1000 as the communication connection with the cooking appliance 1000 is terminated.

The input interface 2520 is for receiving input from the user. The input interface 2520 includes a key pad, a dome switch, and a touch pad (contact capacitive type, pressure resistance type, infrared detection type, surface ultrasonic conduction type, and integral tension measurement type). , piezo effect method, etc.), a jog wheel, or a jog switch, but is not limited thereto.

The input interface 2520 may include a voice recognition module. For example, the heating device 2000 may receive an analog voice signal through a microphone and convert the voice portion into computer-readable text using an Automatic Speech Recognition (ASR) model. The heating device 2000 can acquire the user's speech intention by interpreting the converted text using a Natural Language Understanding (NLU) model. Here, the ASR model or NLU model may be an artificial intelligence model. Artificial intelligence models can be processed by an artificial intelligence-specific processor designed with a hardware structure specialized for processing artificial intelligence models. Artificial intelligence models can be created through learning. Here, being created through learning means that the basic artificial intelligence model is learned using a large number of learning data by a learning algorithm, thereby creating a predefined operation rule or artificial intelligence model set to perform the desired characteristics (or purpose). It means burden. An artificial intelligence model may be composed of multiple neural network layers. Each of the plurality of neural network layers has a plurality of weight values, and neural network calculation is performed through calculation between the calculation result of the previous layer and the plurality of weights.

Linguistic understanding is a technology that recognizes and applies/processes human language/characters, including Natural Language Processing, Machine Translation, Dialog System, Question Answering, and Voice Recognition. /Speech Recognition/Synthesis, etc. may be included.

The memory 2600 may store programs for processing and control of the processor 2200, and may also store input/output data (eg, a plurality of power transmission patterns, etc.). The memory 2600 may also store an artificial intelligence model.

The memory 2600 is a flash memory type, hard disk type, multimedia card micro type, card type memory (for example, SD or XD memory, etc.), RAM. (RAM, Random Access Memory) SRAM (Static Random Access Memory), ROM (Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM (Programmable Read-Only Memory), magnetic memory, magnetic disk , and may include at least one type of storage medium among optical disks. Additionally, the heating device 2000 may operate a web storage or cloud server that performs a storage function on the Internet.

Figure 7A is a block diagram for explaining the function of a cooking appliance according to an embodiment of the present disclosure.

The cooking appliance 1000 according to FIG. 7A may include all home appliances that can be heated or driven by the wireless power transmission device 2000, such as various cooking devices and small home appliances.

Referring to FIG. 7A, the cooking appliance 1000 includes a wireless power receiving unit 1100, a power supply unit 1010, a control unit 1020 including a processor, a communication interface 1030, a sensor unit 1040, and a user interface 1050. , relay 1007, and memory 1060. However, not all of the illustrated components are essential components. The cooking appliance 1000 may be implemented with more components than the components shown, or may be implemented with fewer components than the illustrated components.

Since each component of the cooking appliance 1000 has been described with reference to FIGS. 2 to 4, overlapping descriptions will be omitted here.

The control unit 1020 may include at least one processor.

The control unit 1020 controls the overall operation of the cooking appliance 1000. The control unit 1020 can control the wireless power receiver 1100, communication interface 1030, sensor unit 1040, user interface 1050, and memory 1060 by executing programs stored in the memory 1060. .

According to an embodiment of the present disclosure, the cooking appliance 1000 may be equipped with an artificial intelligence (AI) processor. Artificial intelligence (AI) processors may be manufactured in the form of dedicated hardware chips for artificial intelligence (AI), or may be manufactured as part of an existing general-purpose processor (e.g. CPU or application processor) or graphics-specific processor (e.g. GPU). It may also be mounted on the cooking appliance 1000. In one embodiment, the control unit 1020 controls cooking based on the water temperature (or internal temperature of the cooking appliance) and the bottom surface temperature of the cooking appliance measured by the first temperature sensor unit 1041 and the second temperature sensor unit 1042. The cooking device 1000 may independently determine whether the device 1000 is co-heated. In one embodiment, the control unit 1020 may receive from the wireless power transmission device 2000 whether the cooking appliance 1000 is being co-heated. The control unit 1020 may output an indication that the cooking appliance 1000 is being co-heated through the output interface 1052 of the user interface 1050.

The wireless power receiver 1100 may include a pickup coil 1001, a rectifier circuit 1012, a power supply unit 1010, and a load 1004. In one embodiment, the load 1004 is a necessary component when the cooking appliance 1000 is a 2-2 type cooking appliance 1000b-2, so the cooking appliance 1000 is a 2-2 type cooking appliance 1000b-2. If not (1000b-2), the load 1004 component may be omitted.

The load 1004 may include a heater 1014, an insulating pad 1024 located between the heater 1014 and the bracket 1034, and a bracket 1034, as seen in FIG. 5A. Additionally, the load 1004 may include a second temperature sensor unit 1042 for sensing the temperature of the bracket 1034. However, in the block diagram of FIG. 7A, the second temperature sensor unit 1042 is shown for convenience of explanation. Included in the sensor unit 1040. The rectifier circuit 1012 rectifies the AC power transmitted from the wireless power transmission device 2000 and converts it into appropriate power required by the cooking appliance 1000. The power supply unit 1010 may be activated by power received by the pickup coil 1001.

The communication interface 1030 may include a short-range communication unit 1031 and a long-distance communication unit 1032.

The communication interface 1030 may include one or more components that enable communication between the cooking appliance 1000 and the wireless power transmission device 2000, or between the cooking appliance 1000 and a server device, or between the cooking appliance 1000 and a mobile device. You can. For example, the communication interface 1030 may include a short-range wireless communication interface 1031 and a long-distance communication unit 1032. The short-range communication unit 1031 includes a Bluetooth communication unit, a Bluetooth Low Energy (BLE) communication unit, a Near Field Communication interface, a WLAN (Wi-Fi) communication unit, a Zigbee communication unit, an infrared data association (IrDA) communication unit, It may include, but is not limited to, a Wi-Fi Direct (WFD) communication unit, an Ultra Wideband (UWB) communication unit, and an Ant+ communication unit. The long-distance communication unit 1032 may be used to communicate with a server device when the cooking appliance is remotely controlled by a server device (not shown) in an IoT (Internet of Things) environment. The long-distance communication unit 1032 may include the Internet, a computer network (eg, LAN or WAN), and a mobile communication unit. The mobile communication unit transmits and receives wireless signals to at least one of a base station, an external terminal, and a server on a mobile communication network. Here, the wireless signal may include various types of data according to voice call signals, video call signals, or text/multimedia message transmission and reception. The mobile communication unit may include, but is not limited to, a 3G module, 4G module, LTE module, 5G module, 6G module, NB-IoT module, LTE-M module, etc.

The first temperature sensor unit 1041 of the sensor unit 1040 may be used to measure the temperature of water (cooked food) inside the cooking appliance 1000 (temperature inside the cooking appliance 1000 when there is no water). The second temperature sensor unit may be used to measure the temperature of the outer surface of the cooking appliance 1000 (or the temperature of the bottom surface of the cooking appliance 1000).

The user interface 1050 may include an output interface 1051 and an input interface 1052. The output interface 1051 is for outputting audio signals or video signals and may include a display unit and an audio output unit.

When the display unit and the touch pad form a layered structure to form a touch screen, the display unit can be used as an input interface in addition to an output interface. The display unit includes a liquid crystal display, a thin film transistor-liquid crystal display, a light-emitting diode (LED), an organic light-emitting diode, and a flexible display. It may include at least one of a display, a 3D display, and an electrophoretic display. If the cooking appliance 1000 is co-heating, the display unit may display an alarm phrase in text format, for example, “The cooking appliance is co-heating,” or display a blinking indication that it is co-heating. It is also possible for the user to easily recognize that the cooking appliance 1000 is being heated.

The audio output unit may output audio data received from the communication interface 1030 or stored in the memory 1060. Additionally, the sound output unit may output sound signals related to functions performed in the cooking appliance 1000. For example, the audio output unit can output voice information such as “The cooking appliance is co-heating” so that the user can easily tell whether the cooking appliance is co-heating. The sound output unit may include a speaker, buzzer, etc.

According to an embodiment of the present disclosure, the output interface 1051 can display information about the cooking appliance. For example, the output interface 1051 may output a graphical user interface (GUI) corresponding to identification information of the cooking appliance 1000. The output interface 1051 may output identification information of the cooking appliance 1000 and whether the cooking appliance 1000 is being co-heated to distinguish it from other cooking appliances on the wireless power transmission device 2000. For example, the output interface 1051 can output the content “The smart kettle is being co-heated” through the display unit or sound output unit.

The input interface 1052 is for receiving input from the user. The input interface 1052 includes a key pad, a dome switch, and a touch pad (contact capacitive type, pressure resistance type, infrared detection type, surface ultrasonic conduction type, and integral tension measurement type). , piezo effect method, etc.), a jog wheel, or a jog switch, but is not limited thereto.

The input interface 1052 may include a voice recognition module. For example, the cooking appliance 2000 may receive an analog voice signal through a microphone and convert the voice portion into computer-readable text using an Automatic Speech Recognition (ASR) model. The cooking device 1000 can acquire the user's speech intention by interpreting the converted text using a Natural Language Understanding (NLU) model. Here, the ASR model or NLU model may be an artificial intelligence model. Artificial intelligence models can be processed by an artificial intelligence-specific processor designed with a hardware structure specialized for processing artificial intelligence models. Artificial intelligence models can be created through learning. Here, being created through learning means that the basic artificial intelligence model is learned using a large number of learning data by a learning algorithm, thereby creating a predefined operation rule or artificial intelligence model set to perform the desired characteristics (or purpose). It means burden. An artificial intelligence model may be composed of multiple neural network layers. Each of the plurality of neural network layers has a plurality of weight values, and neural network calculation is performed through calculation between the calculation result of the previous layer and the plurality of weights.

Linguistic understanding is a technology that recognizes and applies/processes human language/characters, including Natural Language Processing, Machine Translation, Dialog System, Question Answering, and Voice Recognition. /Speech Recognition/Synthesis, etc. may be included.

The memory 1060 may store programs for processing and control of the control unit 1020, and may also store input/output data (eg, a plurality of power transmission patterns, etc.). Additionally, mapping table data according to Table 1 above can be stored. The memory 1060 may also store an artificial intelligence model.

The memory 1060 is a flash memory type, hard disk type, multimedia card micro type, card type memory (for example, SD or XD memory, etc.), RAM. (RAM, Random Access Memory) SRAM (Static Random Access Memory), ROM (Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM (Programmable Read-Only Memory), magnetic memory, magnetic disk , and may include at least one type of storage medium among optical disks.

The relay 1007 can be used to block heating under the control of the control unit 1020 if the cooking appliance 1000 is being co-heated. Blocking heating through the relay 1007 has been explained through FIG. 5B, so detailed description will be omitted. According to one embodiment, the control unit 1020 may block heating by controlling the thermal fuse 1008 instead of the relay 1007.

Figure 7b is a block diagram for explaining a wired cooking appliance according to an embodiment of the present disclosure.

In the wired cooking appliance 1000e according to FIG. 7B, the wireless power reception unit 1100 is replaced with the power reception unit 1110 compared to the cooking appliance 1000 that receives power wirelessly according to FIG. 7A. The communication interface 1030, sensor unit 1040, user interface 1050, and memory 1060 included in the wired cooking appliance 1000e according to FIG. 7B have the same configuration as those included in the other cooking appliance 1000 in FIG. 7A. Since the elements and their functions are the same, detailed description will be omitted here. Additionally, since the load 1004 included in the power receiver 1110 can be considered the same as the load 1004 in FIG. 7A, the description of the load 1004 will also be omitted here.

The power receiver 1110 receives power through a wire. Power can be received as alternating current power through a general outlet, or direct current power can be received from a battery. When receiving alternating current power, a rectifier circuit 1012 is used to internally convert the power. The power unit 1010 is activated by the power received through the outlet converted through the power unit 1010.

The cooking appliance 1000 according to an embodiment of the present disclosure may be the cooking appliance 1000e that supplies power through a wire according to FIG. 7B. A method for detecting co-heating when heating is performed in a cooking appliance (1000e) supplied with wired power can be implemented by replacing the heating device (2000) of FIGS. 17A to 17D with a device that supplies power by wired. .

FIG. 8 is a diagram for explaining a wireless power transmission unit of a heating device (wireless power transmission device) according to an embodiment of the present disclosure.

Referring to 810 of FIG. 8, the heating device 2000 may further include a communication coil 2001 on the same plane as the transmission coil (operating coil, 2120). At this time, the communication coil 2001 may be an NFC antenna coil for NFC communication. In Figure 8, the number of windings of the communication coil 2001 is expressed as one, but it is not limited to this. The number of windings of the communication coil 2001 may be plural. For example, the communication coil 2001 may be wound with 5 to 6 turns.

According to an embodiment of the present disclosure, the communication coil 2001 included in the heating device 2000 and the communication coil 1002 included in the cooking appliance 1000 may be disposed at positions corresponding to each other. For example, when the communication coil 2001 included in the heating device 2000 is disposed in the center of each cooking area, the communication coil 1002 included in the cooking appliance 1000 is also placed in the central portion of the bottom of the cooking appliance 1000. can be placed in

Referring to 810 of FIG. 8, when the cooking appliance 1000 is placed on the heating device 2000, the heating device 2000 may supply power to the pickup coil 1001 through the transmitting coil 2120. In addition, when the heating device 2000 transmits power wirelessly through the transmitting coil 2120, an induced current flows through the receiving coil 1003 of the cooking appliance 1000 and energy can be supplied to the load 1004. . The load 1004 may include a motor or a heater 1014, and when the load 1004 is a heater 1014 load, the insulation pad 1024, the bracket 1034, and the 2 It may further include a temperature sensor unit 1042. Additionally, the load 1004 may be placed at a location spaced apart from the receiving coil 1003. For example, the power generated by the induced current can drive the motor of a blender or supply energy to the heater 1014 of a coffee dripper.

In FIG. 8, the case where the heating device 2000 includes the communication coil 2001 is described as an example, but when the cooking appliance 1000 does not include the communication coil 1002, the heating device 2000 also includes a communication coil ( 2001) may not be included.

Hereinafter, with reference to FIG. 9A, we will take a closer look at how the heating device 2000 detects whether the cooking appliance 1000 placed on the top plate is co-heated.

FIG. 9A is a waveform diagram showing a power transmission pattern of a heating device for determining whether a cooking appliance is co-heated according to an embodiment of the present disclosure.

Referring to FIG. 9A, the heating device 2000 starts heating (power transmission or power transmission output) by the user's heating start operation - heating start input - at t ₀ . In general, the heating pattern - power transmission pattern - in the heating device 2000 may have a pattern different from the waveform diagram of FIG. 9A. This will be explained in more detail in Figure 9b below.

The heating device 2000 gradually increases the power transmission output for stable output operation. As can be seen in Figure 9a, at the time when the power transmission output starts (t ₀ ), a low power transmission output is achieved and gradually reaches the target output. When the heating device 2000 determines that the characteristics of the load 1004 are constant, the heating device 2000 may adjust the output gain to reach the target output within a stable power transmission output range in a faster time.

In one embodiment according to the present disclosure, in order to determine whether the cooking appliance 1000 is being co-heated, the heating device 2000 first uses a predetermined period for determining co-heating during the first period (t ₀ to t ₁ ). Outputs power for heating judgment. Since the user has already made a user input to heat the cooking device 1000 at the time when power transmission output by the heating device 2000 starts (t ₀ ), the heating device 2000 provides power corresponding to the user input. Although output is required, the power output corresponding to the user input is temporarily withheld during the first section (t ₀ to t ₁ ) and the second section (t ₁ to t ₂ ) to determine co-heating. Instead, the heating device 2000 first outputs a predetermined power for determining co-heating during the first period (t ₀ to t ₁ ). For example, if the power corresponding to the user input (for example, level 6) on the panel of the heating device 2000 is 1500W, the power for determining empty heating may be output as 800W. In one embodiment, the power for determining co-heating is not fixed by the heating device 2000 but may vary depending on the type of cooking appliance 1000. In other words, if the cooking appliance 1000 is a small home appliance with a capacity that can detect a temperature change in a short time even with 800W, the heating device 2000 outputs 800W and performs a co-heating determination. If the heating device 2000 establishes communication with the cooking device 1000 before time t ₀ and receives identification information of the cooking device 1000 through communication and determines that the cooking device 1000 is a large-capacity home appliance, the heating device 2000 (2000), the size of power for determining co-heating can be varied from 800W to a larger 1000W. The identification information of the cooking device 1000 may include information about what type of cooking device the cooking device 1000 is (coffee dripper, blender, pot, smart kettle, etc.) and what the capacity of the cooking device 1000 is. Based on the received cooking appliance 1000 information, the heating device 2000 determines that the type of cooking appliance 1000 is a cooking appliance 1000 that does not require co-heating - for example, the cooking appliance 1000 If is a blender, - may not be judged as co-heating.

In one embodiment, the heating device 2000 provides time information (t ₀ , t ₁ , t ₂ ) for detecting co-heating to the cooking device 1000 so that the cooking device 1000 can detect co-heating on its own. It can be transmitted through the communication interface 2300.

In one embodiment, the heating device 2000 outputs power for determining co-heating during the first section of FIG. 9A and then stops outputting the power at time t ₁ . While power for co-heating determination is output, the first temperature sensor unit 1041 of the cooking appliance 1000 senses the food in the cooking appliance 1000 or the temperature inside the cooking appliance 1000, and the cooking appliance 1000 The second temperature sensor unit 1042 senses the heater temperature (temperature of the bracket) of the cooking appliance 1000. The control unit 1020 of the cooking appliance 1000 controls the communication interface 1030 and transmits the sensed food or internal temperature and the heater temperature (temperature of the bracket) to the communication interface 2300 of the heating device 2000. . In one embodiment, the food used in the cooking appliance 1000 may be water. In other words, when determining the co-heating of the cooking device 1000, the temperature of the water, which is the cooking material, can be sensed through the first temperature sensor unit 1041 and the water temperature information can be transmitted to the heating device 2000. When there is no water, the first temperature sensor unit 1041 can sense the internal temperature of the cooking appliance 1000. If the cooking appliance 1000 does not have the second temperature sensor unit 1042 and the heating device 2000 separately senses the floor temperature of the cooking appliance 1000, the temperature of the preceding heater is replaced by the floor temperature.

The length of the first section may vary depending on various conditions such as the capacity of the cooking appliance 1000 or the amount of power for determining co-heating, but may have a length of about 10 seconds, for example. As seen above, the second temperature sensor unit 1042 is preferably attached to the bracket to prevent damage, but it can also be viewed as sensing the heater temperature, so throughout the specification of this application, sensing by the second temperature sensor unit 1042 is used. The bracket temperature information can be regarded as heater temperature information.

In one embodiment, the heating device 2000 stops outputting power for determining co-heating during the second period and continues to receive food temperature information and heater temperature information from the cooking appliance 1000 through the communication interface 2300. do. The length of the second section may vary depending on various conditions such as the capacity of the cooking appliance 1000 or the size of power for determining co-heating, but may have a length of about 5 seconds, for example. The heating device 2000 may determine whether the cooking appliance 1000 is co-heated based on the temperature change of the food and the heater during the first section and the temperature change of the food and the heater during the second section. In one embodiment, when the heating device 2000 is a cooking appliance 1000 without a heater and does not receive heater temperature information, the heating device 2000 may measure and store the floor temperature of the cooking appliance 1000 through a floor temperature sensor. In one embodiment, even if the cooking appliance 1000 does not have a heater, the bottom surface temperature of the cooking appliance 1000 is measured by the second temperature sensor unit 1042 that measures the temperature of the bottom surface, The measured bottom surface temperature of the cooking appliance 1000 may be transmitted to the heating device 2000.

Refer to FIG. 9B to examine the output power pattern for co-heating determination in more detail.

FIG. 9B is a diagram illustrating a power pattern output by a heating device to determine co-heating according to an embodiment of the present disclosure.

Referring to FIG. 9B, various power transmission patterns according to an embodiment of the present disclosure are shown as examples. The other power transmission pattern in FIG. 9B shows only the envelope of the power transmission waveform according to FIG. 9A.

For example, the power transmission pattern according to 9010 in FIG. 9B is a power transmission pattern graph showing the envelope of the power transmission pattern in FIG. 9A.

Blocking power transmission during the second section in the power transmission pattern to determine co-heating is the same for all power transmission patterns. However, like the power transmission pattern according to 9020 of FIG. 9B, it may have a pattern in which the output continuously increases in the first section. In the power transmission pattern according to 9010, the first section is determined by a predetermined time length, whereas the power transmission pattern according to 9020 is different in that the first section ends when the amount of transmitted power reaches a predetermined amount of power. The power transmission pattern according to 9020 shows that the first section of the cooking appliance 1000 can be set according to a power size limit according to the capacity of the heating device 2000.

In the power transmission pattern according to 9030, the output is gradually increased in the first section compared to the 9010 power transmission pattern, and in the third section, the reheating output is quickly increased to the user-set output. If the overheat resistance characteristics of the cooking appliance 1000 or the heating device 2000 are high, the heating device 2000 can rapidly increase power in the third section.

In the power transmission pattern according to 9040, a section in which heating output is lowered may occur when moving from the first section to the second section. As the heating device 2000 lowers the heating output at a predetermined point in the first section, the temperature change between co-heating and non-co-heating (bracket-water) can be clearly distinguished depending on the type of cooking device 1000. This may not be possible, but the temperature change can be distinguished more clearly by the heating device 2000 heating with the same power transmission pattern as the 9040.

Depending on the type and capacity of the cooking device 1000, the processor 2200 of the heating device 2000 may detect or determine co-heating by selecting an appropriate power transmission pattern.

Please refer to FIG. 10 to explain the co-heating judgment in more detail.

Figure 10 is a temperature change graph for determining co-heating according to an embodiment of the present disclosure.

In the graph of Figure 10, the y-axis is temperature (°C), and the x-axis is time (seconds). According to the example of FIG. 9, 0 to 10 seconds is the first section, 10 to 15 seconds is the second section, and after 15 seconds is the third section. 1000-1 in FIG. 10 is a graph showing changes in temperature of the bracket, water, and (bracket-water) when the cooking device 1000 is co-heated. Referring to 1000-1 in FIG. 10, the temperature 101 of the bracket and the water at 10 seconds (t ₁ ) when the first section ends and the second section begins when power output from the heating device 2000 is stopped The temperature 103 and the temperature 105 of (bracket-water) do not fall below until the second section ends (t ₂ ). In other words, during the second section, the temperatures of the bracket, water, and (bracket-water) continue to rise. In other words, the slope of the temperature change between the bracket and water and (bracket-water) during the second section can be said to have a positive value. Of course, during the second section, the bracket, water, and The temperature of (bracket-water) may decrease slightly rather than increase. However, this somewhat decreasing value is due to the fact that the bracket temperature 102, the water temperature 104, and the (bracket-water) temperature 106 decrease in the second section of 1000-2 in FIG. 10 where the next water heating occurs. It is significantly smaller than the width. In one embodiment, in the second section of 1000-1 in FIG. 10, the temperatures of the bracket, water, and (bracket-water) may all have an increasing value, and at least one of the temperatures of the bracket, water, and (bracket-water) may have a slightly decreasing value.

When the second section ends and the heating device 2000 outputs power corresponding to the user input during the third section, the temperatures of the bracket, water, and (bracket-water) rise again.

1000-2 in FIG. 10 is a graph showing changes in the bracket temperature 102, the water temperature 104, and the (bracket-water) temperature 106 when water heating is performed due to the presence of water in the cooking device 1000.

Referring to 1000-2 in FIG. 10, the temperatures of the bracket, water, and (bracket-water) all increase during the first section, and then during the second section when the output of the heating device 2000 is cut off, the temperature of the bracket and (bracket-water) increases. It can be seen that the temperatures are all lower than the temperatures of the bracket and (bracket-water) at time t ₁ (10 seconds). In other words, in one embodiment, the slope of the temperature change between the bracket and (bracket-water) during the second section can be said to have a negative value. During the second section, not only the temperature of the bracket and (bracket-water) but also the temperature of the water may have a decreasing value. In other words, the temperature of the bracket and (bracket-water) decreases during the second section. In other words, the slope of the temperature change of the bracket and (bracket-water) during the second section can be said to have a negative value. Referring to 1000-2, when the second section ends and the heating device 2000 outputs power corresponding to the user input, the temperatures of the bracket, water, and (bracket-water) rise again.

Figure 11 is a graph showing temperature change according to the amount of water according to an embodiment of the present disclosure.

Referring to FIG. 11, the graph showing the change in temperature of the bracket (water) according to the amount of water in the cooking device 1000 is 1100-1, and the graph showing the change in temperature of the bracket according to the amount of water in the cooking device 1000 is 1100. It is -2.

Referring to graph 1100-1 showing the change in (bracket-water) temperature according to the amount of water in the cooking device 1000, the (bracket-water) temperature change when the amount of water is 300ml, 200ml, 100ml, and co-heating, respectively. It's showing. As in the previous example, the processor 2200 of the heating device 2000 blocks the output transmitted to heat the cooking device 1000 at a time point (t ₁ ) 10 seconds after the heating starts. In the graph of 1100-1 in FIG. 11, the reason why an inflection point occurs where the temperature of the (bracket-water) changes a few seconds after the point at which the output is blocked (t ₁ ) is that even if the output is blocked, the effect of the output is blocked directly to the bracket. This is because there is a delay of several seconds in the temperature of the water. For the same reason, the temperature of the (bracket-water) rises again a few seconds later than the 15-second time point (t ₂ ) when reheating begins again. In one embodiment, reflecting that the temperature change of the (bracket-water ⁾ of _the cooking device 1000 is delayed for a _{predetermined time} , the ( _bracket -water ) It may be desirable to determine and detect co-heating through temperature changes. In one embodiment, the heating device 2000 may transmit this time delay information to the cooking appliance 1000 so that the cooking appliance 1000 uses the time delay information when determining co-heating.

Looking at the graph of 1100-1 in FIG. 11, when the cooking device 1000 is being co-heated between t ₁ and t ₂ , the temperature of the (bracket-water) is between t ₁ and t ₂ (to be exact, t ₁ ' ~ t ₂ ^' ) or the slope has a positive value, but even if the amount of water is different from 300ml, 200ml, and 100ml, co-heating is not performed and if there is water in the cooking device 1000, it is heated by the heating device 2000. You can see that between t ₁ and t ₂ when the output is blocked, the temperature of the (bracket-water) decreases or has a slope with a negative value between t ₁ and t ₂ (to be exact, between t ₁ ' and t ₂ ^' ). You can. In the graph 1100-1 of FIG. 11, it can be seen that cooking is stopped after t ₂ ^' , so the output from the heating device 2000 is cut off, and the temperature of the (bracket-water) decreases.

Referring to graph 1100-2 showing the change in temperature of the bracket according to the amount of water in the cooking device 1000, it shows the change in temperature of the bracket when the amount of water is 300ml, 200ml, 100ml, and co-heating, respectively. As in the previous example, the processor 2200 of the heating device 2000 cuts off the output for heating the cooking device 1000 at a time point (t ₁ ) 10 seconds after the heating starts. In the graph of 1100-2 in FIG. 11, the reason why the inflection point where the temperature of the bracket changes occurs a few seconds after the point at which the output is blocked (t ₁ ) is because even if the output is blocked, the effect of the output is blocked is directly reflected in the temperature of the bracket. This is because there is a delay of several seconds. For the same reason, the temperature of the bracket rises again a few seconds later than the 15 second time point (t ₂ ) when reheating begins again. In one embodiment, reflecting that the change in temperature of the bracket of the cooking device 1000 is delayed for a predetermined time, the temperature of the bracket is changed between t ₁ '' and t ₂ ^'' rather than between t ₁ and t ₂ . It may be desirable to determine heating. Compared to the 1100-1 graph, t ₁ and t ₂ in 1100-2 are It is the same time as t ₁ and t ₂ of 1100-1, but t ₁ ' and t ₂ ^' of the 1100-1 graph are the same as those of the 1100-2 graph. It may be a different point in time from t ₁ '' and t ₂ ^'' . In one embodiment, the heating device 2000 may transmit this time delay information to the cooking appliance 1000 so that the cooking appliance 1000 uses the time delay information when determining co-heating.

Looking at the graph of 1100-2 in FIG. 11, when the cooking device 1000 is being co-heated between t ₁ and t ₂ , the temperature change of the bracket is between t ₁ and t ₂ (strictly, between t ₁ ^'' and t 2 ₂ ^'' liver) While it continues to have a positive value or the slope has a positive value, even if the amount of water is different from 300ml, 200ml, and 100ml, co-heating does not occur and if there is water in the cooking device (1000), it is output by the heating device (2000). When this is blocked, the temperature change of the bracket may have a negative value between t ₁ and t ₂ (strictly between t ₁ ^'' and t ₂ ^'' ) and may have a slope with a negative value. there is. In the graph 1100-1 of FIG. 11, it can be seen that cooking is stopped after t ₂ ^'', thereby blocking the output from the heating device 2000 and the temperature of the bracket decreases.

Figure 12 is a graph for determining co-heating when reheating a heating device according to an embodiment of the present disclosure.

Assume that when the heating device 2000 starts the operation of heating the cooking device 1000 according to FIG. 11, the process for determining co-heating is completed and it is determined that it is not co-heating. In one embodiment, the heating device 2000 may output power corresponding to the user input and determine empty heating again while reheating the cooking device 1000.

According to FIG. 12, it can be seen that the temperature of the bracket 1034 and the water do not start at a low temperature, unlike in FIG. 11, but start at a relatively high temperature because the cooking device 1000 is being heated.

The processor 2200 of the heating device 2000 transmits output to the cooking device 1000 from time t ₃ to time t ₄ (section t ₃ to t ₄ ) to determine whether the cooking device 1000 is being heated. Block. The time length of the t ₃ to t ₄ section can be set differently depending on various conditions, but can be approximately 5 seconds. During the section t ₃ to t ₄ , the temperature of the bracket 1034 and the water are measured as in FIG. 11, and if the (bracket-water) temperature continues to rise, the processor 2200 of the heating device 2000 controls the cooking device 1000. It can be judged that the process is being heated. Conversely, if the bracket 1034 and water temperature are measured during the period t ₃ to t ₄ and the (bracket-water) temperature decreases, the processor 2200 of the heating device 2000 determines that the cooking device 1000 is not being co-heated. You can judge. When determining co-heating, the processor 2200 of the heating device 2000 determines not only the change in (bracket-water) temperature but also whether the temperature of the bracket 1034 is rising or falling, and determines that it is co-heating if the former is the case, and determines that the latter is co-heating. If so, it can be judged that it is not co-heating.

By measuring the temperature of the bracket 1034 and water as shown in FIG. 12, the cooking device 1000 is prepared in case all the water in the cooking device 1000 evaporates during heating or there is no food in the cooking device 1000 for other reasons. It is possible to determine whether or not there is co-heating. If the processor 2200 of the heating device 2000 determines that the cooking device 1000 is in co-heating during reheating, it may notify the cooking device 1000 of co-heating, and the output interface 2510 of the heating device 2000 may notify the cooking device 1000 of co-heating. Through this, the status of air heating can be output on the display or audio. Additionally, the processor 2200 of the heating device 2000 may transmit the status of air heating to the user's mobile device or server. In one embodiment, the cooking appliance 1000 may also independently detect that it is being co-heated during reheating.

FIG. 13A is a diagram showing the position of a first temperature sensor unit for sensing the temperature of food according to an embodiment of the present disclosure.

Referring to FIG. 13A, the cooking appliance 1000 is shown as a smart kettle as an example. In order to sense the temperature of water 11, which is the cooking material in the cooking appliance 1000, a first temperature sensor unit 1041 for measuring the temperature of the water is attached to the bottom. The bottom surface 10 of the cooking appliance 1000 may include a load for heating the smart kettle from a receiving coil as part of the cooking appliance 1000, and the receiving coil is included in the upper body of the cooking appliance 1000 and the bottom surface 100. The surface 10 may be part of the heating device 2000 that can transmit power to a receiving coil of the cooking appliance 1000.

FIG. 13B is a diagram showing the position of a first temperature sensor unit for sensing the temperature of food according to an embodiment of the present disclosure.

Referring to FIG. 13B, the cooking appliance 1000 is also a smart kettle, and the first temperature sensor unit 1041 is attached to the side of the inner cylinder of the smart kettle and can sense the temperature of water. The first temperature sensor unit 1041 may be installed through the side of the smart kettle inner cylinder to more accurately measure the internal (or food) temperature of the cooking appliance 1000.

Below, we will look at the structure of the cooking appliance 1000 in more detail with reference to FIG. 13C.

FIG. 13C is a diagram showing the structure of a cooking appliance according to an embodiment of the present disclosure.

The cooking appliance 1000 according to FIG. 13C is a smart pot. A characteristic of the smart pot is that, unlike the coffee dripper introduced in Figure 13d below, there is no heating heater.

Referring to Figure 13c, the cooking appliance 1000 includes a top cover (TOP COVER, 1301), an inner/outer sealing (INNER/OUTER SEALING, 1302), a side sensor module (SIDE SENSOR Assembly Module, 1303), and a buzzer module ( BUZZER Assembly Module, 1304), inner case (INNER CASE, 1305), pickup coil (PICK UP COIL, 1306), rubber leg (RUBBER LEG, 1307), body (BODY, 1308), screw cover (SCREW COVER, 1309) , guide rubber (GUIDE RUBBER, 1311), BLE PBA module (BLE PBA ASM, 1312), power PBA module (POWER PBA ASM, 1313), sensor leg (SENSOR LEG, 1314), and floor sensor (BOTTOM SENSOR, 1315). It may include, but is not limited to this. Let’s take a look at each component.

The top cover 1301 forms the exterior of the cooking appliance 1000 and is a part that seats the inner pot cooking vessel (not shown). The inner/outer sealing 1302 is compressed when assembling the cooking device 1000 and prevents moisture penetration, thereby enhancing the waterproofness of the cooking device 1000.

The side sensor module 1303 includes a first temperature sensor unit 1041 (side temperature sensor) for measuring the temperature of a cooking vessel (not shown), a fixing member for fixing the first temperature sensor unit 1041, and a cooking vessel. (Not shown) may include an elastic member (eg, spring) that is compressed and deformed when seated, but is not limited thereto. According to one embodiment, as shown in FIG. 13C, the side sensor module 1303 including the first temperature sensor unit 1041 measures the temperature from various sides of the cooking appliance 1000, thereby improving the accuracy of the side temperature measurement. It can be installed in three places to increase

The side sensor module 1303 including the first temperature sensor unit 1041 may be installed penetrating the inner case 1305 to more accurately measure the temperature inside the inner case 1305. The bottom sensor (BOTTOM SENSOR, 1315) may include a second temperature sensor unit 1042 for measuring the temperature of the bottom surface of the cooking appliance 1000. The floor sensor 1315 may be assembled to the sensor leg 1314 and supported by the sensor leg 1314. The floor sensor 1315 can detect abnormal overheating of the cooking vessel.

The buzzer module (BUZZER Assembly Module, 1304) is a module for outputting an alarm when a cooking vessel (not shown) overheats. The inner case (INNER CASE, 1305) supports the cooking container, and the rubber leg (RUBBER LEG, 1307) relieves shock and prevents slipping when the cooking container is placed. The body (BODY, 1308) forms the exterior of the smart pot and covers internal components such as cooking containers. In addition, it prevents heat from escaping to the outside during the cooking operation of the smart pot and may include a handle that the consumer can hold along with the cooking container when moving the smart pot. The screw cover (SCREW COVER, 1309) covers the screws for assembly, forms an appearance, and relieves shock and prevents slipping when mounting the smart pot on the top of the heating device (2000). The guide rubber (1311) acts as a guide to prevent eccentricity when the cooking container is placed in the smart pot, alleviating shock and preventing slipping. The BLE PBA module (BLE PBA ASM, 1312) can control the output of the heating device 2000 through wireless communication with the heating device 2000 and sense the temperature of the smart pot. The power PBA module (POWER PBA ASM, 1313) changes the power received from the pickup coil 1316 into a voltage that the MCU and BLE PBA module 1312 can use. The sensor leg (SENSOR LEG, 1314) is used to relieve shock and prevent slipping when the cooking vessel is placed in the smart pot.

The MCU of the smart pot, which is the cooking device 1000 according to FIG. 13c, operates the smart pot according to the bottom temperature of the smart pot sensed by the floor sensor 1315 and the side (or inside) temperature of the smart pot sensed by the side sensor module 1303. You can determine whether the pot is co-heated. In one embodiment, when the change in temperature minus the side temperature of the smart pot from the bottom temperature of the smart pot is still rising during a predetermined period of time during which heating from the heating device 2000 is turned off, the MCU of the smart pot determines whether the smart pot is You can judge that it is being heated. Alternatively, the processor 2200 of the heating device 2000 determines the floor temperature of the smart pot sensed by the floor sensor 1315 from the BLE PBA module 1312 of the smart pot and the side of the smart pot sensed by the side sensor module 1303. Co-heating can be determined by receiving (or internal) temperature information. The method of determining air heating is the same as the method used by the Smart Pot MCU.

Figure 13D is a diagram showing a coffee dripper according to an embodiment of the present disclosure.

The coffee dripper 6000 according to FIG. 13D may be a type 2-2 cooking device 1000b-2 in which the receiving coil 1003 heats the heater 1014 among the cooking devices 1000.

Referring to FIG. 13D, the coffee dripper 6000 is divided into a water heater 1310 for boiling water at the top and a coffee server 1350 for accommodating dripped coffee at the bottom. The water heating unit 1310 may include a heater 1014 and a first temperature sensor unit 1041 for measuring the temperature of the water or the temperature inside the water heating unit 1310.

The coffee server 1350 may include a pickup coil 1001, a receiving coil 1003, and a server heater 1014-1. The coffee server 1350 may be made of barley silicate material, but is not limited thereto. The receiving coil 1003 of the coffee server 1350 may be electrically connected to the receiving coil 1003 included in the water heater 1310 through the connection part 1320. The receiving coil 1003 and the server heater 1014-1 of the coffee server 1350 may be used to keep and heat the received coffee, and may not be included in the coffee server 1350 depending on the specifications of the coffee dripper 6000. there is. The receiving coil 1003 may be protected from heat by a 200-degree heat-resistant wire. The connection portion 1320 connecting the coffee server 1350 and the water heater 1310 may further include a server detection sensor 1370, a solenoid valve 1360, and an LED 1380.

The server detection sensor 1370 determines whether there is a coffee server 1350, and a Time of Flight (ToF) sensor may be applied. The solenoid valve 1360 opens and closes the valve according to a control signal to discharge water and fill the water heating unit 1310 with water. A direct-acting solenoid valve may be used. The LED 1380 may emit light while the coffee dripper 6000 is in operation to indicate that it is in operation.

The coffee dripper 6000 may include a PCB (not shown), and the PCB may be included in the coffee server 1350 or may be provided in the water heating unit 1310 or the connection unit 1320. The PCB can receive power through the pickup coil 1001, and in one embodiment, the MCU, a type of processor on the PCB, is a first temperature sensor unit for measuring the temperature of the water or the temperature inside the water heating unit 1310. It is possible to determine whether co-heating is performed through 1041 and the second temperature sensor unit 1042 attached to the heater 1041.

FIG. 14 is a flowchart illustrating a method by which a heating device identifies the location of a cooking appliance according to an embodiment of the present disclosure.

In step S1410, the heating device 2000 according to an embodiment of the present disclosure transmits the first wireless communication signal transmitted from the cooking appliance 1000 located on the top plate of the heating device 2000 to the communication of the heating device 2000. It can be detected through the interface 2300.

According to an embodiment of the present disclosure, when the heating device 2000 operates in the small home appliance detection mode, the heating device 2000 uses a first preset device to drive the communication interface 1030 of the cooking appliance 1000. A level of power (eg, 100 to 300 w) can be transmitted to the cooking device 1000. The small home appliance detection mode is a mode for detecting a second type of cooking appliance (1000b) capable of communicating with the heating device (2000).

When the communication interface 1030 of the cooking appliance 1000 is driven by power transmitted from the heating device 2000, the cooking appliance 1000 may transmit a first wireless communication signal. For example, the cooking appliance 1000 may use short-range wireless communication (eg, Bluetooth, BLE, etc.) to advertise the first wireless communication signal including the first packet at regular intervals. The heating device 2000 may receive a first wireless communication signal transmitted from the communication interface 1030 of the cooking appliance 1000. The first packet included in the first wireless communication signal may include identification information of the cooking appliance 1000, but is not limited thereto. Meanwhile, the first packet included in the first wireless communication signal may not include location information of the cooking appliance 1000 (eg, information about the cooking area in which the cooking appliance 1000 is currently located).

In step S1420, when the first wireless communication signal is detected, the heating device 2000 according to an embodiment of the present disclosure operates a plurality of operating coils 2120 corresponding to a plurality of cooking zones according to a plurality of different power transmission patterns. ) can control the inverter circuit 2113 to generate a magnetic field.

According to an embodiment of the present disclosure, the first packet included in the first wireless communication signal transmitted from the cooking appliance 1000 may not include location information of the cooking appliance 1000. At this time, the heating device 2000 cannot know exactly which cooking area the cooking device 1000 is located on. Accordingly, the heating device 2000 may control the inverter circuit 2113 to output power according to different power transmission patterns for each cooking area in order to confirm the location of the cooking appliance 1000. For example, when the heating device 2000 includes three cooking zones, the heating device 2000 outputs power according to a first power transmission pattern through the first operating coil corresponding to the first cooking zone. , so that power according to the second power transmission pattern is output through the second operating coil corresponding to the second cooking region, and power according to the third power transmission pattern is output through the third operating coil corresponding to the third cooking region. The inverter circuit 2113 can be controlled.

The plurality of power transmission patterns may be set differently based on at least one of the maintenance time of the power transmission section, the maintenance time of the power cutoff section, and the power level.

Figure 15 is a diagram for explaining a power transmission pattern according to an embodiment of the present disclosure. Referring to FIG. 15, a plurality of power transmission patterns may be set differently depending on the maintenance time of the power transmission section (T1) and the maintenance time of the power cutoff section (T2). For example, the first power transmission pattern 1510 of the first cooking area has a maintenance time of the power transmission section (T1) of 250 ms and a maintenance time of the power cutoff section (T2) of 50 ms. That is, according to the first power transmission pattern 1510, a pattern in which power is transmitted for 250 ms and then power is cut off for 50 ms may be repeated. The second power transmission pattern 1520 of the second cooking area has a maintenance time of the power transmission section (T1) of 200 ms and a maintenance time of the power cutoff section (T2) of 100 ms. That is, according to the second power transmission pattern 1520, a pattern in which power is transmitted for 200 ms and then power is cut off for 100 ms may be repeated.

Therefore, according to an embodiment of the present disclosure, the heating device 2000 receives a first wireless communication signal from the cooking appliance 1000 and determines the cooking area in which the cooking appliance 1000 is located (hereinafter referred to as cooking mode). When operating in area determination mode), the heating device 2000 supplies alternating current to the first operating coil corresponding to the first cooking zone for 250 ms according to the first power transmission pattern 1510, and then supplies alternating current for 50 ms. The inverter circuit 2113 can be controlled to cut off the supply, and the alternating current is supplied to the second operating coil corresponding to the second cooking area for 200 ms according to the second power transmission pattern 1520, and then the alternating current is supplied for 100 ms. The inverter circuit 2113 can be controlled to block.

At this time, the cooking appliance 1000 may analyze the voltage output from the rectifier and detect one of a plurality of power transmission patterns. For example, referring to FIG. 15, when the cooking appliance 1000 is located in the first cooking area, the cooking appliance 1000 analyzes the first voltage 1511 output from the rectifier to determine the power transmission section T1. ) can be detected with a maintenance time of 250 ms, and a first power transmission pattern 1510 with a maintenance time of the power cut-off period (T2) of 50 ms. And the cooking appliance 1000 identifies the cooking area that outputs the first power transmission pattern 1510 as the first cooking area based on the previously stored information about the plurality of power transmission patterns of the heating device 2000, thereby performing cooking. It can be confirmed that the device 1000 is located in the first cooking area. In addition, when the cooking appliance 1000 is located in the second cooking area, the cooking appliance 1000 analyzes the second voltage 1521 output from the rectifier, and the maintenance time of the power transmission section T1 is 200 ms, The second power transmission pattern 1520 in which the maintenance time of the power cut-off period T2 is 100 ms can be detected. And the cooking appliance 1000 identifies the cooking area that outputs the second power transmission pattern 1520 as the second cooking area based on the previously stored information about the plurality of power transmission patterns of the heating device 2000, thereby performing cooking. It can be confirmed that the device 1000 is located in the second cooking area.

Meanwhile, according to an embodiment of the present disclosure, the cooking appliance 1000 may check the cooking area in which the cooking appliance 1000 is located using only the maintenance time of the output cut-off section T2. For example, if the power cut-off section is 50 ms as a result of analyzing the power output from the rectifier, the cooking appliance 1000 determines that it is located above the first cooking area that outputs the first power transmission pattern 1510, and If the cut-off period is 100 ms, it may be determined that it is located above the second cooking area that outputs the second power transmission pattern 1520.

According to an embodiment of the present disclosure, a plurality of power transmission patterns may be set in various ways based on the maintenance time of the power transmission section, the maintenance time of the power cutoff section, and the power level.

Referring to FIG. 16, the first power transmission pattern 1610 of the first cooking area may be a pattern in which power is transmitted for 2 seconds at the first level (P1) and then the power is cut off for 2 seconds. The second power transmission pattern 1620 may be a pattern in which power is transmitted at the first level (P1) for 2 seconds and then power is cut off for 1 second. The third power transmission pattern 1630 is a pattern in which power is transmitted to the first level (P1) for 4 seconds, then power is cut off for 1 second, and power is transmitted again to the first level (P1) for 1 second, and then power is cut off for 1 second. It can be. The fourth power transmission pattern 1640 may be a pattern in which power at the first level (P1) is transmitted for 2 seconds, the power is cut off for 2 seconds, and power at the second level (P2) is transmitted again for 2 seconds and then turned off for 2 seconds. there is.

Meanwhile, according to an embodiment of the present disclosure, the power transmitted to the cooking appliance 1000 according to a plurality of power transmission patterns may be sufficient power to drive the communication interface 1030 of the cooking appliance 1000. Therefore, according to an embodiment of the present disclosure, when the cooking appliance 1000 determines that the cooking appliance 1000 is located in the first cooking zone based on the sensed first power transmission pattern, A second wireless communication signal containing information may be transmitted, and the cooking device 1000 in the first cooking zone may be determined to be co-heated to determine whether the cooking device 1000 in the first cooking zone is co-heated. can be notified. Notification may be made by at least one method among notification through a display and notification through audio output. Additionally, the cooking appliance 1000 may advertise a second packet containing information about the first cooking area using short-range wireless communication.

Returning to FIG. 14, in step S1430, the heating device 2000 according to an embodiment of the present disclosure selects a first power transmission pattern corresponding to the first power transmission pattern detected at the location of the cooking appliance 1000 among a plurality of power transmission patterns. 1 A second wireless communication signal containing information about the cooking area and identification information of the cooking appliance 1000 may be received from the cooking appliance 1000.

For example, the heating device 2000 sends a second packet containing information about the first cooking area where the cooking device 1000 is located and identification information of the cooking device 1000 to the cooking device 1000 through short-range wireless communication. ) can be received from. Information about the first cooking area where the cooking appliance 1000 is located may include identification information indicating the first cooking area among the plurality of cooking areas (e.g., first cooking area, upper left cooking area, etc.), and the first cooking area may include: It may also include coordinate information of the cooking area. The identification information of the cooking device 1000 is unique information for identifying the cooking device 1000, and includes Mac address, model name, device type information (e.g., IH type ID or heater type ID, motor type ID), It may include at least one of manufacturer information (e.g., Manufacture ID), serial number, and manufacturing time, but is not limited thereto. According to one embodiment of the present disclosure, identification information of the cooking appliance 1000 may be expressed as a series of identification numbers or a combination of numbers and alphabets.

Meanwhile, the second packet included in the second wireless communication signal may further include communication connection information. Communication connection information may include pairing information (eg, authentication key, etc.) if the cooking appliance 1000 and the heating device 2000 were previously paired. 'Pairing' may mean, for example, a procedure for confirming the password, identification information, security information, or authentication information specified for mutual communication connection between the cooking device 1000 and the heating device 2000 that support the Bluetooth function. there is.

According to an embodiment of the present disclosure, the heating device 2000 is provided with a first cooking area from the cooking appliance 1000 that includes information about the first cooking area where the cooking appliance 1000 is located and identification information of the cooking appliance 1000. 2 By receiving a wireless communication signal, it is possible to check which type of cooking appliance 1000 is located in which cooking area.

Meanwhile, when a plurality of cooking appliances are located in a plurality of cooking areas, the heating device 2000 may receive identification information and location information of each cooking appliance from each cooking appliance. For example, when the coffee machine is located in the first cooking zone, the heating device 2000 may receive information about the first cooking zone and identification information of the coffee machine from the coffee machine, and the toaster may be configured to operate the second cooking zone. When located in the zone, information about the second cooking zone and identification information of the toaster can be received from the toaster. At this time, the heating device 2000 can confirm that the coffee machine is located in the first cooking area and the toaster is located in the second cooking area.

In step S1440, the heating device 2000 according to an embodiment of the present disclosure, based on the second wireless communication signal, receives information about the first cooking zone where the cooking appliance 1000 is located among the plurality of cooking zones (hereinafter referred to as , may be expressed as location information of the cooking appliance 1000) and identification information of the cooking appliance 1000 may be output.

According to an embodiment of the present disclosure, the heating device 2000 may display identification information of the first cooking appliance 1000 as text or an image on the display unit. For example, text indicating the name or type of the first cooking appliance 1000 may be displayed, or an icon image of the first cooking appliance 1000 may be displayed together with the text. According to an embodiment of the present disclosure, the heating device 2000 may output identification information of the first cooking appliance 1000 as a voice through an audio output unit.

Meanwhile, according to an embodiment of the present disclosure, the heating device 2000 displays identification information of the first cooking appliance 1000 at a position that displays the power level of the first cooking area on the GUI, thereby ) may indicate that it is located in the first cooking area. In addition, when the cooking appliance 1000 is co-heated, a special display method - for example, an image corresponding to the identification information - is displayed along with the identification information of the first cooking appliance 1000 at a position that displays the power level of the first cooking area on the GUI. It is also possible to display whether co-heating is performed by blinking, changing the color of the image corresponding to the identification information, or displaying the text 'co-heating' around the image corresponding to the identification information. For example, if the cooking device 1000 is a smart pot, the smart pot is placed in the cooking area at the bottom left, and the smart pot is being co-heated, the heating device 2000 displays the icon image of the smart pot at the bottom left of the GUI. You can display that the smart pot is co-heating by displaying the smart pot while blinking. According to an embodiment of the present disclosure, the heating device 2000 transmits information about the first cooking area where the cooking device 1000 is located (position information of the cooking device 1000) and whether or not co-heating is performed through a voice output unit. Output - for example, "The Smart Pot in the first cooking zone is co-heating" - can also be done.

In the case of a general induction range, the user checks the type of cooking device 1000 and the location of the cooking device 1000 on which the cooking device 1000 is placed, enters the type of cooking device 1000 through the operation interface for the cooking device, and then performs a specific operation. Since you have to input , user convenience is reduced. However, according to an embodiment of the present disclosure, when the user places the cooking appliance 1000 on any cooking area and presses the power button, the heating device 2000 collects the identification information of the cooking appliance 1000 and the cooking appliance 1000. User convenience is increased by automatically checking and displaying the location of the cooking area. In addition, according to an embodiment of the present disclosure, the heating device 2000 is operated when the user places the cooking appliance 1000 on the first cooking zone while the power is turned on, or when the cooking appliance 1000 is placed on the first cooking zone. Even when moving to the second cooking area, the identification information of the cooking appliance 1000 and the location of the cooking area where the cooking appliance 1000 is placed can be checked and displayed. In addition, when the user starts heating the cooking device 1000, if there is no food in the cooking device 1000 and the cooking device 1000 performs empty heating, the heating device 2000 can determine whether the cooking device 1000 is co-heating and output whether it is co-heating. . In addition, based on the identification information of the cooking appliance 1000, the location of the cooking area where the cooking appliance 1000 is placed, and the determination of whether the cooking appliance 1000 is co-heated, the heating device 2000 operates on the cooking appliance 1000. The type, the location of the cooking area where the cooking appliance 1000 is placed, and whether or not it is co-heated can all be output through the output interface 2510.

Referring to FIGS. 14 to 16 , an embodiment of identifying the cooking area and the cooking appliance where the cooking appliance 1000 is located according to a plurality of power transmission patterns has been described. However, the embodiment according to FIGS. 14 to 16 is optional. However, it may not be an essential step to consider when judging co-heating.

FIG. 17A is a flowchart illustrating a method of determining whether a cooking appliance is co-heated according to an embodiment of the present disclosure.

In step S1702a, the heating device 2000 receives user input. The user input is a user input to heat the cooking device 1000, and the user input may also include an input regarding what power level to heat the cooking device 1000 to. If the power level to be heated is not specified by the user, heating may begin at a default power level. In one embodiment, the user input reception operation according to step S1702a may be performed before step S1810 of FIG. 18 below.

In step S1704a, the heating device 2000 heats the cooking device 1000 for a first predetermined time using power for determining co-heating rather than power generated by a user input through a transmission coil. In step S1705a, the cooking appliance 1000 activates the PCB 1005 of the cooking appliance 1000 with the pickup coil 1001 through the power received from the heating device 2000 to produce water contained in the cooking appliance 1000. By a first temperature sensor unit 1041 that senses the temperature of the food or the internal temperature of the cooking appliance 1000 and a second temperature sensor unit 1042 attached to the bracket 1034 to measure the temperature of the heater 1014. Sensed temperature information is acquired and transmitted to the heating device 2000. The length of the first predetermined time may vary depending on various conditions, but may be approximately 10 seconds.

The cooking appliance 1000 continues to be connected to the first temperature sensor unit 1041 and the second temperature sensor unit 1042 while the PCB 1005 of the cooking appliance 1000 is activated, unless there is a special reason for stopping the temperature measurement. Temperature sensing can be continued.

In step S1706a, the heating device 2000 blocks heating of the cooking appliance 1000 for a second predetermined period of time and during that time, the temperature sensed by the first temperature sensor unit 1041 and the second temperature sensor unit 1042 Continue to obtain information. In step S1708a, the heating device 2000 measures the temperature information inside the cooking appliance 1000 sensed by the first temperature sensor unit 1041 and the heater by the second temperature sensor unit 1042 attached to the bracket 1034. It is determined whether the cooking appliance 1000 is being co-heated based on the temperature information at 1014.

Of course, in order to save resources, the heating device 2000 may selectively acquire temperature information only during the second predetermined time, and may obtain the first temperature information from a predetermined time (for example, 2 seconds) just before the second predetermined time starts. 2 Temperature information can be selectively acquired only for a certain period of time.

When determining whether to co-heat, the processor 2200 of the heating device 2000 determines whether the cooking device 1000 is operated based on the relationship between the temperature of the heater 1014 and the internal temperature (temperature of the food) of the cooking device 1000. It is possible to determine whether it is co-heated or not. In one embodiment, the heating device 2000 determines that the cooking device 1000 is co-heated when the value obtained by subtracting the temperature inside the cooking device 1000 from the temperature of the heater 1014 continues to increase for a second predetermined period of time. You can judge. In one embodiment, if the temperature of the heater 1014 continues to rise during the second predetermined time, the processor 2200 may determine that the cooking appliance 1000 is being co-heated. In one embodiment, the processor 2200 determines that the cooking device 1000 is co-heated if the slope of the value obtained by subtracting the temperature inside the cooking device from the temperature of the heater 1014 during the second predetermined time is positive (+). can do. The temperature inside the cooking device 1000 will be the temperature of the water if there is food such as water inside the cooking device 1000, and if there is no water, it will simply be the temperature inside the cooking device 1000. In one embodiment, the processor 2200 determines that if the slope of the value obtained by subtracting the temperature inside the cooking appliance 1000 from the temperature of the heater 1014 during the second predetermined time is greater than a predetermined value, the cooking appliance 1000 is It can be judged that it is heated.

Figure 17b is a flowchart for explaining a method of determining whether a cooking appliance is co-heated according to an embodiment of the present disclosure.

When the user input is received by the heating device 2000 in step S1701b, the heating device 2000 prepares to start heating the cooking device 1000. The user can start the operation of the heating device 2000 by pressing a button that turns on the power of the heating device 2000. In response to receiving the user input, in step S1702b, the heating device 2000 may supply power to the pickup coil 1001 of the cooking appliance 1000 through the transmission coil 2120. In step S1703b, the power transmitted through the pickup coil 1001 is supplied to the PCB 1005 of the cooking appliance 1000 and the power unit 1010, the control unit 1020, and the communication interface 1030 included in the PCB 1005. And the sensor unit 1040 is activated. The communication interface 1030 will be activated when the power of the communication module included in the PCB 1005 is turned on. In step S1704b, the cooking appliance 1000 transmits identification information of the cooking appliance 1000 to the heating device 2000. Identification information of the cooking device 1000 includes the type of cooking device 1000 (coffee dripper, smart pot, frying pan, smart kettle, etc.), capacity, and type (whether it is a cooking device for induction heating or a heater heating device). At least one piece of information may be included, such as whether the device is a cooking device equipped with a temperature sensor, or a MAC address. At this time, the heating device 2000 can determine the cooking area where the cooking appliance 1000 is located and obtain cooking area information. In step S1705b, short-distance communication may be established between the heating device 2000 and the cooking appliance 1000. Short-range communication includes Bluetooth communication, BLE (Bluetooth Low Energy) communication, Near Field Communication interface (NFC), WLAN (Wi-Fi) communication, Zigbee communication, Infrared Data Association (IrDA) communication, and WFD ( It may include, but is not limited to, Wi-Fi Direct) communication, UWB (ultra wideband) communication, Ant+ communication, etc.

In step S1706b, at least part of the received identification information of the cooking appliance 1000 may be displayed on the output interface 2510, such as the display of the heating device 2000. Additionally, the heating device 2000 may display identification information of the cooking appliance 1000 as well as a cooking area where the cooking appliance 1000 is placed.

In step S1707b, the user inputs a heating operation to the heating device 2000. For example, the user may input heating to level 8 in the heating device 2000, which is capable of heating at levels 1 to 10. The user can also select recipe information from the heating device 2000 in which a cooking recipe can be input. For example, the user can select recipe information (eg, cooking temperature: 180-190, time: 30-35 seconds) appropriate for the food to be cooked and the cooking device 1000. At this time, when the user presses the start button, the heating device 2000 can cook the food in the cooking device 1000 according to recipe information (eg, cooking temperature: 180-190, time: 30-35).

In step S1708b, the heating device 2000 determines whether the cooking device 1000 is a cooking device capable of confirming co-heating or a cooking device requiring co-heating confirmation, based on the received identification information of the cooking device 1000. For example, if the identification information of the cooking appliance 1000 includes information indicating that the cooking appliance does not have a temperature sensor, the heating device 2000 may not determine co-heating. Alternatively, the heating device 2000 may determine not to determine co-heating when the cooking device 1000 is a first type cooking device 1000a of the induction heating type. If the heating device 2000 determines not to determine co-heating, in step S1717b, the heating device 2000 supplies power to the cooking device 1000 based on the heating operation and recipe input by the user in step S1707b. do.

If it is determined in step S1708b that the heating device 2000 is a cooking device that requires co-heating confirmation based on the identification information of the cooking device 1000 received, in step S1710b, the heating device 2000 applies power for determining co-heating for a predetermined period of time. It can be supplied to the cooking device 1000 while cooking. For example, the heating device 2000 may supply power of 800W for 10 seconds and stop supplying power for 5 seconds in step S1711b. At this time, in step S1709b, the cooking device 1000 has already changed the temperature of the water in the cooking device 1000 (or the inside of the cooking device 1000) and the temperature of the bracket 1034 into a group that is being heated (S1710b) and when heating is blocked. Continue measuring during (S1711b) and obtain these measurements.

In step S1713b, the cooking appliance 1000 determines whether to co-heat based on the obtained temperature information. In one embodiment, the cooking appliance 1000 receives information about the time section in which power for determining empty heating is supplied from the heating device 2000, the time section in which power is cut off, and the size of the power for determining empty heating through a communication interface. It can be received from the heating device 2000. Based on the received information, the cooking appliance 1000 can know at what point the heating device 2000 outputs power for determining air heating and at what point it cuts off heating. The cooking appliance 1000 can also determine for what length of time the heating device 2000 outputs power for determining co-heating and blocks heating. The cooking appliance 1000 may determine and detect co-heating based on information obtained from the heating device 2000 and temperature information obtained from the sensor unit 1040. In one embodiment, if the value obtained by subtracting the temperature inside the cooking appliance 1000 from the temperature of the bracket 1034 maintains a continuously increasing value during the time when heating is blocked by the heating device 2000, it is called co-heating. You can judge. Alternatively, if the slope of the value obtained by subtracting the temperature inside the cooking device 1000 from the temperature of the bracket 1034 is a positive value, it may be determined to be co-heating.

In step S1714b, the cooking appliance 1000 may transmit the result of determining whether to heat the heating device 2000 to the heating device 2000 through the communication interface 1030.

In step S1715b, the heating device 2000 may recognize whether the cooking device 1000 is co-heating according to the result of determining whether it is co-heating received from the cooking device 1000, and the first temperature received from the cooking device 1000. It may be determined whether the cooking appliance 1000 is being co-heated based on the temperature information measured by the sensor unit 1041 and the second temperature sensor unit 1042. If the heating device 2000 determines that the cooking appliance 1000 is being co-heated, the heating device 2000 notifies the user whether or not the cooking device 1000 is co-heating in step S1716b. At this time, notification of whether co-heating may be performed through the output interface 2510 of the heating device 2000. In one embodiment, if the heating device 2000 can communicate with a server or a user's mobile device, it can notify the server or mobile device. Notification of air heating may be made through sound, display, notification, etc.

In step S1717b, the heating device 2000 determines if the cooking appliance 1000 is not being co-heated according to the co-heating determination result received from the cooking appliance 1000, or if the first temperature sensor received from the cooking appliance 1000 As a result of determining whether the cooking appliance 1000 is being co-heated based on the temperature information measured by the unit 1041 and the second temperature sensor unit 1042, if it is determined that the cooking appliance 1000 is not being co-heated, , power according to the user input (for example, 1400W corresponding to the user input heating level) can be supplied to the cooking appliance 1000.

Figure 17c is a flowchart for explaining a method of determining whether a cooking appliance is co-heated according to an embodiment of the present disclosure.

When the user input is received by the heating device 2000 in step S1701c, the heating device 2000 prepares to start heating the cooking device 1000. The user can start the operation of the heating device 2000 by pressing a button that turns on the power of the heating device 2000. In response to receiving the user input, in step S1702c, the heating device 2000 may supply power to the pickup coil 1001 of the cooking appliance 1000 through the transmission coil 2120. In step S1703c, the power transmitted through the pickup coil 1001 is supplied to the PCB 1005 and the power unit 1010, control unit 1020, communication interface 1030, and sensor unit 1040 included in the PCB 1005. is activated. The communication interface 1030 will be activated when the power of the communication module included in the PCB 1005 is turned on. In step S1704c, the cooking appliance 1000 transmits identification information of the cooking appliance 1000 to the heating device 2000. Identification information of the cooking device 1000 includes the type of cooking device 1000 (coffee dripper, smart pot, frying pan, smart kettle, etc.), capacity, and type (whether it is a cooking device for induction heating or a heater heating device). At least one piece of information may be included, such as whether the device is a cooking device equipped with a temperature sensor, or a MAC address. At this time, the heating device 2000 can determine the cooking area where the cooking appliance 1000 is located and obtain cooking area information. In step S1705c, short-distance communication may be established between the heating device 2000 and the cooking appliance 1000. Short-range communication includes Bluetooth communication, BLE (Bluetooth Low Energy) communication, Near Field Communication interface (NFC), WLAN (Wi-Fi) communication, Zigbee communication, Infrared Data Association (IrDA) communication, and WFD ( It may include, but is not limited to, Wi-Fi Direct) communication, UWB (ultra wideband) communication, Ant+ communication, etc.

In step S1706c, at least part of the received identification information of the cooking appliance 1000 may be displayed on the output interface 2510, such as the display of the heating device 2000. Additionally, in one embodiment, the heating device 2000 may display identification information of the cooking appliance 1000 as well as a cooking area where the cooking appliance 1000 is placed.

In step S1707c, the user inputs a heating operation to the heating device 2000. For example, the user may input heating to level 6 in the heating device 2000, which is capable of heating at levels 1 to 10. The user can also select recipe information from the heating device 2000 in which a cooking recipe can be input. For example, the user can select recipe information (eg, cooking temperature: 180-190, time: 30-35 seconds) appropriate for the food to be cooked and the cooking device 1000. At this time, when the user presses the start button, the heating device 2000 can cook the food in the cooking device 1000 according to recipe information (eg, cooking temperature: 180-190, time: 30-35).

In step S1708c, the heating device 2000 may measure the temperature of the bottom surface of the cooking device 1000 through the temperature sensor on the top plate of the heating device 2000.

In step S1709c, the cooking appliance 1000 may measure the temperature of the side of the cooking appliance 1000 through the first temperature sensor 1041. The first temperature sensor 1041 may indirectly measure the internal temperature of the cooking appliance 1000 by measuring the temperature of the side of the cooking appliance 1000. In one embodiment, the first temperature sensor 1041 penetrates the side of the cooking appliance 1000 and is connected to the inside of the cooking appliance 1000 to directly measure the internal temperature of the cooking appliance 1000.

In step S1710c, the cooking appliance 1000 may transmit the side temperature or internal temperature measurement value of the cooking appliance 1000 to the heating device 2000 through the communication interface 1030.

In step S1711c, the heating device 2000 outputs power for determining co-heating (e.g., 800 W) to the cooking device 1000 for a predetermined time (e.g., 10 seconds). The heating device 2000 may transmit to the cooking device 1000 information about a predetermined time (eg, 10 seconds) for outputting power for determining co-heating (eg, 800 W) to the cooking device 1000.

While the heating device 2000 outputs the power for determining co-heating (e.g., 800 W) for a predetermined time (e.g., 10 seconds), the heating device 2000 outputs the temperature sensor on the upper plate of the heating device 2000 in step S1712c. The temperature of the bottom surface of the cooking appliance 1000 can be measured through, and in step S1713c, the cooking appliance 1000 can measure the side temperature or internal temperature of the cooking appliance 1000 through the first temperature sensor 1041. You can. And, in step S1714c, the cooking appliance 1000 may transmit the side temperature or internal temperature measurement value of the cooking appliance 1000 to the heating device 2000 through the communication interface 1030.

In step S1715c, the heating device 2000 stops heating for a predetermined period of time (for example, 5 seconds) to determine whether or not to perform co-heating. While heating is stopped for a predetermined time, the heating device 2000 may measure the temperature of the bottom surface of the cooking device 1000 through the temperature sensor on the top plate of the heating device 2000 in step S1716c, and in step S1717c The cooking appliance 1000 may measure the side temperature or internal temperature of the cooking appliance 1000 through the first temperature sensor 1041. And, in step S1718c, the cooking appliance 1000 may transmit the side temperature or internal temperature measurement value of the cooking appliance 1000 to the heating device 2000 through the communication interface 1030.

In step S1719c, the heating device 2000 may determine whether the cooking device 1000 is being co-heated based on the temperature of the bottom surface of the cooking device 1000 and the side temperature or internal temperature of the cooking device 1000. . In one embodiment, if the temperature obtained by subtracting the side temperature or internal temperature of the cooking device 1000 from the temperature of the bottom surface of the cooking device 1000 continues to rise for a predetermined period of time when the heating is stopped, the heating device 2000 It is determined that the cooking device 1000 is being co-heated, and if not, the temperature is calculated by subtracting the side temperature or internal temperature of the cooking device 1000 from the temperature of the bottom surface of the cooking device 1000 during a predetermined period of time when heating is stopped. When a section in which the decreases occurs, it is determined that the cooking appliance 1000 is not being heated.

In step S1720c, the heating device 2000 may transmit the result of determining whether to heat the cooking device 1000 through the communication interface 2300. In particular, if there is no need for the heating device 2000 to inform the cooking device 1000 of the result of determining whether to co-heat, step S1720c may be omitted.

According to the result of determining whether it is co-heating in step S1721c, the heating device 2000 supplies power (e.g., 1400 W) according to the user input to the cooking device 1000 in step S1722c, if it is not co-heating, and if it is co-heating, in step S1723c. The heating device 2000 notifies the user whether there is co-heating or not. At this time, notification of whether co-heating may be performed through the output interface 2510 of the heating device 2000. In one embodiment, if the heating device 2000 can be connected to a server or a user's mobile device for communication, it can notify the server or mobile device that the cooking device 1000 is being co-heated. Notification of air heating may be made through sound, display, notification, etc.

Figure 17d is a flowchart for explaining a method of determining whether a cooking appliance is co-heated according to an embodiment of the present disclosure.

When the user input is received by the heating device 2000 in step S1701d, the heating device 2000 prepares to start heating the cooking device 1000. The user can start the operation of the heating device 2000 by pressing a button that turns on the power of the heating device 2000. In response to receiving the user input, in step S1702d, the heating device 2000 may supply power to the pickup coil 1001 of the cooking appliance 1000 through the transmission coil 2120. In step S1703d, power is supplied to the PCB 1005 of the cooking appliance 1000, which has received power through the pickup coil 1001. The power unit 1010, control unit 1020, communication interface 1030, and sensor unit 1040 included in the PCB 1005 are activated through the supplied power. The communication interface 1030 will be activated when the power of the communication module included in the PCB 1005 is turned on. In step S1704d, the cooking appliance 1000 transmits identification information of the cooking appliance 1000 to the heating device 2000. Identification information of the cooking device 1000 includes the type of cooking device 1000 (coffee dripper, smart pot, frying pan, smart kettle, etc.), capacity, and type (whether it is a cooking device for induction heating or a heater heating device). At least one piece of information may be included, such as whether the device is a cooking device equipped with a temperature sensor, or a Mac address. At this time, the heating device 2000 can determine the cooking area where the cooking appliance 1000 is located and obtain cooking area information. In step S1705d, short-distance communication may be established between the heating device 2000 and the cooking appliance 1000. Short-range communication includes Bluetooth communication, BLE (Bluetooth Low Energy) communication, Near Field Communication interface (NFC), WLAN (Wi-Fi) communication, Zigbee communication, Infrared Data Association (IrDA) communication, and WFD ( It may include, but is not limited to, Wi-Fi Direct) communication, UWB (ultra wideband) communication, Ant+ communication, etc.

In step S1706d, the received identification information of the cooking appliance 1000 may be displayed on the output interface 2510, such as the display of the heating device 2000. Additionally, in one embodiment, the heating device 2000 may display identification information of the cooking appliance 1000 as well as a cooking area where the cooking appliance 1000 is placed.

In step S1707d, the user inputs a heating operation to the heating device 2000. For example, the user may input heating to level 7 in the heating device 2000 capable of heating at 1 to 10 levels. The user can also select recipe information if the heating device 2000 allows input of a cooking recipe. For example, the user can select recipe information (eg, cooking temperature: 180-190, time: 30-35 seconds) appropriate for the food to be cooked and the cooking device 1000. At this time, when the user presses the start button, the heating device 2000 can cook the food in the cooking device 1000 according to recipe information (eg, cooking temperature: 180-190, time: 30-35).

In step S1708d, the heating device 2000 may measure the temperature of the bottom surface of the cooking device 1000 through the temperature sensor on the top plate of the heating device 2000.

In step S1709d, the cooking appliance 1000 may measure the temperature of the side of the cooking appliance 1000 through the first temperature sensor 1041. The first temperature sensor 1041 may indirectly measure the internal temperature of the cooking appliance 1000 by measuring the temperature of the side of the cooking appliance 1000. In one embodiment, the first temperature sensor 1041 penetrates the side of the cooking appliance 1000 and is connected to the inside of the cooking appliance 1000 to directly measure the internal temperature of the cooking appliance 1000.

In step S1710d, the cooking appliance 1000 may transmit the side temperature or internal temperature measurement value of the cooking appliance 1000 to the heating device 2000 through the communication interface 1030. In step S1711d, the heating device 2000 outputs power for determining co-heating (e.g., 800 W) to the cooking device 1000 for a predetermined time (e.g., 10 seconds). In one embodiment, the heating device 2000 may transmit to the cooking appliance 1000 information about the amount of power for determining empty heating and a predetermined time at which the power for determining empty heating is output.

While the heating device 2000 outputs the power for determining co-heating (e.g., 800 W) for a predetermined time (e.g., 10 seconds), the heating device 2000 outputs the temperature sensor on the upper plate of the heating device 2000 in step S1712d. The temperature of the bottom surface of the cooking appliance 1000 can be measured through, and in step S1713d, the cooking appliance 1000 can measure the side temperature or internal temperature of the cooking appliance 1000 through the first temperature sensor 1041. You can. And, in step S1714d, the heating device 2000 transmits the bottom surface temperature measurement value of the cooking device 1000 measured by the temperature sensor attached to the top plate of the heating device 2000 to the cooking device 1000 through the communication interface 1030. ) can be transmitted to.

In step S1715d, the heating device 2000 stops heating for a predetermined period of time (for example, 5 seconds) to determine whether or not it is co-heating. While heating is stopped for a predetermined time, the heating device 2000 may measure the temperature of the bottom surface of the cooking appliance 1000 through the temperature sensor on the top plate of the heating device 2000 in step S1716d, and in step S1717d The temperature of the bottom surface measured by the cooking device 1000 may be transmitted to the cooking device 1000 . Additionally, the cooking appliance 1000 may measure the side temperature or internal temperature of the cooking appliance 1000 using the first temperature sensor 1041 while heating by the heating device 2000 is stopped. And, in step S1718d, the cooking appliance 1000 cooks the cooking appliance 1000 based on the side temperature or internal temperature measurement value of the cooking appliance 1000 and the temperature of the bottom surface of the cooking appliance 1000 received from the heating device 2000. It is possible to determine whether or not there is co-heating. In one embodiment, if the temperature obtained by subtracting the side temperature or internal temperature of the cooking device 1000 from the temperature of the bottom surface of the cooking device 1000 continues to rise for a predetermined period of time when the heating is stopped, the cooking device 1000 determines that the cooking device 1000 is being co-heated, and otherwise, the temperature of the side surface or internal temperature of the cooking device 1000 is subtracted from the temperature of the bottom surface of the cooking device 1000 during a predetermined period of time when heating is stopped. When a section in which the decreases occurs, the cooking appliance 1000 determines that it is not being heated.

In step S1719d, the cooking appliance 1000 transmits the result of determining whether to heat the air to the heating device 2000.

In step S1720d, the heating device 2000 may receive the result of determining whether the cooking device 1000 is co-heating through the communication interface 2300, and obtain a result of whether the cooking device 1000 is co-heating through this. You can.

If it is not co-heating according to the result of determining whether it is co-heating in step S1721d, the heating device 2000 supplies power (for example, 1400 W) according to the user input to the cooking device 1000 in step S1721d, and the cooking device 1000 If it is being co-heated, the heating device 2000 notifies the user whether it is co-heating in step S1722d. At this time, notification of whether co-heating may be performed through the output interface 2510 of the heating device 2000. In one embodiment, if the heating device 2000 can be connected to a server or a user's mobile device for communication, it can notify the server or mobile device that the cooking device 1000 is being co-heated. Notification of air heating may be made through sound, display, or notification.

Figure 17e is a flowchart for explaining a method of determining whether a cooking appliance is co-heated according to an embodiment of the present disclosure.

Referring to FIG. 17E, it is assumed that the cooking appliance 1000 is a wired cooking appliance 1000e as described in FIG. 7B.

In step S1701e, the cooking appliance 1000 receives user input. The user input may be an input of pressing the power button to activate the cooking device 1000. By receiving a user input, the power unit 1010 of the cooking appliance 1000 may be activated and placed in a heating standby state.

In step S1703e, as the power supply unit 1010 of the cooking appliance 1000 is activated, the communication module may also be turned on, allowing the cooking appliance 1000 to communicate. Depending on the specifications of the cooking appliance 1000, the wired cooking appliance 1000e may not include a communication module and therefore step S1703e may be omitted.

In step S1705e, a user input is made to heat the cooking appliance 1000. The user input in step S1705e may be a user input that initiates a heating operation along with an operation and/or recipe input for how the cooking appliance 1000 should be specifically heated. If the cooking device 1000 is a cooking device 1000 in which the power input operation and the heating operation are not particularly distinguished, the cooking device 1000 is turned on by the user input in step S1701e and heating is immediately performed. User input in S1705e may be omitted.

In step S1707e, the sensor unit 1040 is activated and the cooking appliance 1000 acquires a temperature measurement value by the temperature sensor. As in the previous embodiment, the cooking appliance 1000 can measure the temperature of the water or the inside of the cooking appliance 1000 by the first temperature sensor unit 1041, and the cooking appliance 1000 can measure the temperature of the water by the second temperature sensor unit 1042. The temperature of the bottom surface of (1000) can be measured. Temperature measurement according to step S1707e may be continuously performed while the cooking appliance 1000 is activated, unless in special cases.

In step S1709e, according to one embodiment, the control unit 1020 of the cooking appliance 1000 does not perform a heating operation corresponding to the user input according to the previous step S1705e, but first determines whether the cooking appliance 1000 is co-heating. It can be controlled to be heated with a certain amount of power for a certain period of time (10 seconds).

In step S1711e, the cooking appliance 1000 may obtain a temperature measurement value by a temperature sensor when heating at a predetermined power for determining co-heating in step S1709e. As in the previous embodiment, the cooking appliance 1000 can measure the temperature of the water or the inside of the cooking appliance 1000 by the first temperature sensor unit 1041, and the cooking appliance 1000 can measure the temperature of the water by the second temperature sensor unit 1042. The temperature of the bottom surface of (1000) can be measured. However, as explained in the previous step S1707e, temperature measurement can be continuously performed while the cooking appliance 1000 is activated, unless in special cases. Therefore, if the temperature measurement that has already started in step S1707e continues, the temperature measurement step according to step 1711e may be omitted.

In step S1713e, the control unit 1020 of the cooking appliance 1000 stops heating the cooking appliance 1000 for a predetermined time (eg, 5 seconds) and at this time, the first temperature sensor unit 1041 and/or the second temperature sensor The temperature is measured by unit 1042.

In step S1715e, the control unit 1020 of the cooking appliance 1000 determines whether the cooking appliance 1000 is being co-heated based on the temperature measurement value measured in the previous step. In step S1717e, if it is determined that the cooking appliance 1000 is not co-heated in the previous step S1715e, the control unit 1020 may control the cooking appliance 1000 so that power is supplied according to the user input made in step S1705e.

In step S1719e, if the control unit 1020 determines in the previous step S1715e that the cooking appliance 1000 is being co-heated, the control unit 1020 determines that the cooking appliance 1000 is co-heating through the output interface 1051. The heating operation can be blocked by displaying a notification and controlling relay 1007.

Figure 18 is a flowchart showing a method by which a heating device verifies the identification information and location of a cooking appliance according to an embodiment of the present disclosure.

In step S1810, the heating device 2000 according to an embodiment of the present disclosure may transmit a preset first level of power to the cooking appliance 1000 in order to detect a communicable cooking appliance 1000. At this time, the heating device 2000 may operate in a small home appliance detection mode. The first level of power is power for driving the communication interface 1030 of the cooking appliance 1000, and may be, for example, 100-300w.

In step S1820, when the cooking appliance 1000 according to an embodiment of the present disclosure receives the first level of power from the heating device 2000, it activates the communication interface 1030 and sends a first wireless communication signal. Can be transmitted. For example, the cooking appliance 1000 may use short-range wireless communication (eg, Bluetooth, BLE, etc.) to advertise the first wireless communication signal including the first packet at regular intervals.

In step S1830, when receiving the first wireless communication signal transmitted from the communication interface 1030 of the cooking appliance 1000, the heating device 2000 according to an embodiment of the present disclosure uses a plurality of different power transmission patterns. Accordingly, power can be transmitted in multiple cooking areas.

According to an embodiment of the present disclosure, the first packet included in the first wireless communication signal transmitted from the cooking appliance 1000 may not include location information of the cooking appliance 1000. At this time, the heating device 2000 cannot know exactly which cooking area the cooking device 1000 is located on. Accordingly, the heating device 2000 may control the inverter circuit 2113 to output power according to different power transmission patterns for each cooking area in order to confirm the location of the cooking appliance 1000. For example, when the heating device 2000 includes three cooking zones, the heating device 2000 outputs power according to a first power transmission pattern through the first operating coil corresponding to the first cooking zone. , so that power according to the second power transmission pattern is output through the second operating coil corresponding to the second cooking region, and power according to the third power transmission pattern is output through the third operating coil corresponding to the third cooking region. The inverter circuit 2113 can be controlled.

According to an embodiment of the present disclosure, when the second type of cooking appliance (1000b, small home appliance) is available only in some of the cooking areas among the plurality of cooking areas, the heating device 2000 transmits specific power only to some of the cooking areas. Power can be output according to the pattern. For example, if the heating device 2000 includes three cooking zones, but the second type of cooking device 1000b can be used only in the first cooking zone and the third cooking zone, the heating device 2000 Power according to the first power transmission pattern is output through the first operating coil corresponding to the first cooking zone, and power according to the third power transmission pattern is output through the third operating coil corresponding to the third cooking zone, The inverter circuit 2113 can be controlled so that power is not output through the second operating coil corresponding to the second cooking area.

In step S1830, when the first wireless communication signal is detected, the heating device 2000 according to an embodiment of the present disclosure operates a plurality of operating coils 2120 corresponding to a plurality of cooking areas according to a plurality of different power transmission patterns. The inverter circuit 2113 can be controlled to generate this magnetic field.

According to an embodiment of the present disclosure, the first packet included in the first wireless communication signal transmitted from the cooking appliance 1000 may not include location information of the cooking appliance 1000. At this time, the heating device 2000 cannot know exactly which cooking area the cooking device 1000 is located on. Accordingly, the heating device 2000 may control the inverter circuit 2113 to output power according to different power transmission patterns for each cooking area in order to confirm the location of the cooking appliance 1000. For example, when the heating device 2000 includes three cooking zones, the heating device 2000 outputs power according to a first power transmission pattern through the first operating coil corresponding to the first cooking zone. , so that power according to the second power transmission pattern is output through the second operating coil corresponding to the second cooking region, and power according to the third power transmission pattern is output through the third operating coil corresponding to the third cooking region. The inverter circuit 2113 can be controlled.

The plurality of power transmission patterns may be set differently based on at least one of the maintenance time of the power transmission section, the maintenance time of the power cutoff section, and the power level.

In step S1840, the cooking appliance 1000 according to an embodiment of the present disclosure may transmit a second wireless communication signal including identification information of the cooking appliance 1000. At this time, when the cooking appliance 1000 detects a specific power transmission pattern, the cooking appliance 1000 sends information about the cooking area corresponding to the specific power transmission pattern to the cooking appliance 1000 as location information of the cooking appliance 1000. It can be transmitted to the heating device 2000 along with the identification information. For example, the heating device 2000 may advertise a second packet including location information of the cooking device 1000 and identification information of the cooking device 1000. On the other hand, if the cooking appliance 1000 does not detect a specific power transmission pattern, the cooking appliance 1000 does not include location information of the cooking appliance 1000, but only includes identification information of the cooking appliance 1000. Packets can be advertised at a predetermined period.

In step S1850, the heating device 2000 according to an embodiment of the present disclosure may check whether the second wireless communication signal includes location information of the cooking appliance 1000. For example, the heating device 2000 may determine whether the second packet received from the cooking appliance 1000 includes information about the cooking area in which the cooking appliance 1000 is located.

In step S1860, the heating device 2000 according to an embodiment of the present disclosure requests to check the location of the cooking appliance 1000 when the second wireless communication signal does not include location information of the cooking appliance 1000. Notifications can be printed.

When the heating device 2000 receives the second wireless communication signal, but the second wireless communication signal does not include location information of the cooking appliance 1000, the cooking appliance 1000 is a second type of communication capable cooking appliance. (1000b, small home appliance), or the cooking device 1000 may be viewed as being incorrectly placed and unable to detect a specific power transmission pattern, the heating device 2000 may output a notification to check the location of the cooking device 1000. there is. For example, if the area where the cooking appliance 1000 is placed overlaps a portion of the first cooking area, the cooking appliance 1000 may not accurately detect the first power transmission pattern corresponding to the first cooking area.

According to an embodiment of the present disclosure, the heating device 2000 may display a notification to check the location of the cooking appliance 1000 on the display unit or output it as audio. After outputting a notification to confirm the location of the cooking appliance 1000, the heating device 2000 may return to step S1830 and transmit power again in a plurality of cooking zones according to a plurality of different power transmission patterns.

In step S1870, the heating device 2000 according to an embodiment of the present disclosure, when the second wireless communication signal includes location information of the cooking appliance 1000, detects the first cooking device where the cooking appliance 1000 is located. Information about the area and identification information of the cooking appliance 1000 can be output. For example, the heating device 2000 displays identification information of the first cooking appliance 1000 in the area that displays the power level of the first cooking zone on the GUI, thereby allowing the cooking appliance 1000 to be installed in the first cooking zone. The location can be indicated.

In step S1870, the heating device 2000 according to an embodiment of the present disclosure, based on the second wireless communication signal, receives information about the first cooking zone where the cooking appliance 1000 is located among the plurality of cooking zones (hereinafter referred to as , may be expressed as location information of the cooking appliance 1000) and identification information of the cooking appliance 1000 may be output.

According to an embodiment of the present disclosure, the heating device 2000 may display identification information of the first cooking appliance 1000 as text or an image on the display unit. For example, text indicating the name or type of the first cooking appliance 1000 may be displayed, or an icon image of the first cooking appliance 1000 may be displayed. According to an embodiment of the present disclosure, the heating device 2000 may output identification information of the first cooking appliance 1000 as a voice through an audio output unit.

Meanwhile, according to an embodiment of the present disclosure, the heating device 2000 displays identification information of the first cooking appliance 1000 at a position that displays the power level of the first cooking area on the GUI, thereby ) may indicate that it is located in the first cooking area. For example, if the cooking appliance 1000 is a smart pot and the smart pot is placed in the cooking area at the bottom left, the heating device 2000 may display an icon image of the smart pot at the bottom left of the GUI. According to an embodiment of the present disclosure, the heating device 2000 may output information about the first cooking area where the cooking device 1000 is located (position information of the cooking device 1000) as a voice through an audio output unit. there is.

In step S1880, the heating device 2000 according to an embodiment of the present disclosure may operate in a power transmission standby mode. For example, when the heating device 2000 receives a second wireless communication signal including information about the first cooking zone and identification information of the cooking appliance 1000 from the cooking appliance 1000, the heating device 2000 connects the first cooking zone to the second wireless communication signal. It can operate in a power transmission standby mode for transmitting power to the cooking device 1000.

According to an embodiment of the present disclosure, the power transmission standby mode may be a mode that waits for a user input to transmit power to the cooking appliance 1000. The user input to transmit power to the cooking device 1000 may be diverse, such as an input to press an operation button, an input to select a menu, an input to adjust the temperature, an input to select a specific recipe, and an input to select a power level. . After step S1880, the step for determining co-heating according to FIG. 17 may be subsequently performed. Referring to FIG. 18, an embodiment of identifying the cooking area and the cooking appliance where the cooking appliance 1000 is located has been described. However, the embodiment according to FIG. 18 and FIGS. 19 to 24 are only optional, and co-heating This may not be an essential step to consider when making a decision.

Figure 19 is a diagram for explaining the operation of the heating device when a cooking appliance (small home appliance) is placed on the heating device according to an embodiment of the present disclosure.

Referring to FIG. 19, when the user turns on the heating device 2000 while the second type cooking device 1000b is placed on the top plate, the heating device 2000 initializes the system and performs an IH container detection operation ( pot detection operation) can be performed. At this time, when the second type cooking appliance 1000b is a 2-1 type cooking appliance 1000b-1 including a magnetic material, the heating device 2000 uses a current sensor to detect the 2-1 type cooking appliance 1000b-1. It can be detected that the cooking appliance 1000b-1 is placed on the top plate. Meanwhile, when the second type cooking appliance 1000b is a 2-2 type cooking appliance 1000b-2 including a receiving coil 1003, the heating device 2000 uses a current sensor to detect the 2-2 type cooking appliance 1000b-2. Type 2 cooking appliance (1000b-2) cannot be detected being placed on the top plate.

The heating device 2000 may perform a small home appliance detection operation (small object detection operation) after the IH container detection operation. For example, the heating device 2000 may transmit first level power for driving the communication interface 1030 of the cooking appliance 1000b to the cooking appliance 1000b and operate in scan mode. When the cooking appliance 1000b is supplied with power at the first level, it can drive the communication interface 1030 and advertise the first packet. The heating device 2000 operating in scan mode may recognize that the cooking appliance 1000b is located on the top plate by receiving the first packet advertised by the cooking appliance 1000b.

However, if the first packet does not include information about the cooking area where the cooking appliance 1000b is located, the heating device 2000 operates in the cooking area determination mode to confirm the location of the cooking appliance 1000b. can do. For example, the heating device 2000 may output power according to different power transmission patterns for each cooking area. At this time, since the cooking appliance 1000b is placed on the cooking area at the bottom left, it can detect a specific power transmission pattern corresponding to the cooking area at the bottom left. The cooking appliance 1000b may recognize that the cooking appliance 1000b is located in the cooking area at the bottom left by comparing a specific power transmission pattern with a plurality of previously stored power transmission patterns of the heating device 2000. In this case, the cooking appliance 1000 may transmit (eg, address) a second packet including information indicating that the cooking area is located in the lower left cooking area and identification information to the heating device 2000. At this time, the second packet may further include communication connection information.

The heating device 2000 may establish a communication connection with the cooking appliance 1000b based on the communication connection information included in the second packet. If the heating device 2000 and the cooking appliance 1000b were previously paired, the communication connection information may include pairing information. According to an embodiment of the present disclosure, the heating device 2000 may establish a short-range wireless communication channel (eg, a Bluetooth communication channel or a BLE communication channel) with the cooking appliance 1000b. Establishing a Bluetooth communication channel may mean ensuring that the cooking device 1000b and the heating device 2000 can transmit and receive data through the Bluetooth communication method. The BLE communication channel may be a connectionless virtual communication channel that transmits and receives advertising packets through mutual scanning between the cooking device 1000b and the heating device 2000, or may be a connectionless virtual communication channel that transmits and receives advertising packets between the cooking device 1000b and the heating device 2000, and may be used as a connectionless virtual communication channel through a BLE connection request from the heating device 2000. It may be a communication channel of this type of connection being formed.

When the heating device 2000 is connected to the cooking device 1000b, the heating device 2000 uses an inverter to transmit first level power to the pickup coil 1003 of the cooking device 1000b to maintain the communication connection with the cooking device 1000b. The circuit 2113 can be controlled. At this time, the heating device 2000 is used to operate the cooking device 1000b when an operation command for the cooking device 1000b (e.g., coffee extraction start, automatic cooking start, heating, warming, etc.) is received from the user. The inverter circuit 2113 can be controlled to transmit second level power to the cooking appliance 1000b. The second level power may be power for driving the load (eg, heater, motor, battery, etc.) of the cooking appliance 1000b.

FIG. 20 is a flowchart illustrating a method in which a heating device provides a GUI according to identification information of a cooking appliance according to an embodiment of the present disclosure.

In step S2010, the heating device 2000 according to an embodiment of the present disclosure may receive a user input. The user input may be an input of pressing the power button of the heating device 2000, but is not limited thereto.

In step S2020, the heating device 2000 according to an embodiment of the present disclosure may perform an IH container detection operation and a small home appliance detection operation.

For example, the heating device 2000 transmits power for detecting the IH container and then senses the current value of the operating coil, thereby generating the first type of cooking device 1000a and the 2-1 type including a magnetic material. The cooking device 1000b-1 can be detected. In addition, the heating device 2000 transmits power to drive the communication interface 1030 of the cooking appliance 1000 and detects a wireless communication signal transmitted from the cooking appliance 1000, thereby providing a second type of cooking capable of communication. Appliances 1000b (eg, a 2-1 type cooking appliance 1000b-1 and a 2-2 type cooking appliance 1000b-2) may be detected. At this time, the power for detecting the IH container may be less than the power for driving the communication interface 1030 of the cooking appliance 1000.

According to an embodiment of the present disclosure, the heating device 2000 may perform the small home appliance detection operation after first performing the IH container detection operation, or may perform the IH container detection operation after performing the small home appliance detection operation. It may be possible. Additionally, the order of operations may be determined by the user's selection. For example, if the user purchases the heating device 2000 to mainly use a second type of communication-capable cooking appliance (1000b, a small home appliance), the user may want the heating device 2000 to perform a small home appliance detection operation first. It can be set to do so. The user may set the order of the IH container detection operation and the small home appliance detection operation through the user interface 2500 of the heating device 2000, and may perform the IH container detection operation and the IH container detection operation through a mobile terminal connected to the same account as the heating device 2000. You can also set the order of small home appliance detection operations.

In steps S2030 and S2040, if the cooking device 1000 located on the top plate is capable of communication, the heating device 2000 may identify the cooking device 1000 as a second type of cooking device (1000b, small home appliance). there is.

In step S2050, when the cooking appliance 1000 is identified as the second type of cooking appliance (1000b), the heating device 2000 displays a GUI corresponding to the identification information of the second type of cooking appliance (1000b, small home appliance). can be provided. The second type of cooking appliance 1000b may include various small home appliances such as a kettle, toaster, rice cooker, coffee machine, and blender, so that heating The device 2000 may provide various types of GUIs corresponding to identification information of small home appliances.

In steps S2030 and S2060, when the cooking device 1000 includes a magnetic material but communication is not possible, the heating device 1000 located on the upper plate of the heating device 2000 is configured to use the cooking device 1000 as a first type of cooking. It can be identified by the device (1000a, a typical IH vessel). If the cooking device 1000 includes a magnetic material but communication is not possible, the heating device 2000 identifies the cooking device 1000 as a cooking device that cannot perform co-heating determination. Conversely, the cooking appliance 1000 located on the top plate of the heating device 2000 may be identified as the second type of cooking appliance 1000b. The heating device 2000 identifies the identified second type of cooking appliance 1000 as a cooking appliance capable of performing a co-heating determination.

In step S2070, when the cooking appliance 1000 is identified as the first type of cooking appliance 1000a, the heating device 2000 may provide a GUI corresponding to a general IH container. For example, the heating device 2000 does not display identification information corresponding to the cooking appliance 1000 on the display unit, but displays the initial power level in the area corresponding to the cooking area where the cooking appliance 1000 is located. You can. Additionally, the heating device 2000 may output a notification that a general IH container has been detected.

In step S2080, the heating device 2000 may operate in a power transmission standby mode while providing a GUI corresponding to the cooking appliance 1000.

According to an embodiment of the present disclosure, the power transmission standby mode may be a mode that waits for a user input to transmit power to the cooking appliance 1000. The user input to transmit power to the cooking device 1000 may be diverse, such as an input to press an operation button, an input to select a menu, an input to adjust the temperature, an input to select a specific recipe, and an input to select a power level. .

Meanwhile, when the cooking appliance 1000 is a second type cooking appliance 1000b, the heating device 2000 provides power to maintain the operation of the communication interface 1030 of the cooking appliance 1000 in the power transmission standby mode. can continue to be transmitted to the cooking device 1000.

According to an embodiment of the present disclosure, the heating device 2000 is a cooking device that wirelessly receives power by performing an IH container detection operation and a small home appliance detection operation in parallel even if the user does not input the type of the cooking appliance 1000. It is possible to identify the type of device 1000 and whether it is a cooking device that requires co-heating determination.

Once identification of the type of the cooking appliance 1000 is completed, determination of whether the cooking appliance 1000 is co-heated according to FIGS. 17A to 17D may proceed.

Hereinafter, we will look at the operation of the heating device 2000 to output a GUI.

FIG. 21 is a diagram illustrating an operation of a heating device according to an embodiment of the present disclosure to provide a GUI based on identification information of a cooking appliance and whether or not it is co-heating.

Referring to 210 of FIG. 21, the heating device 2000 detects the cooking appliance 1000 placed on the second cooking area (cooking area at the bottom left) and cooks the cooking appliance 1000 by the method according to FIGS. 17A to 17D. When it is determined that processing is being heated, the heating device 2000 may display location information, identification information, and whether co-heating of the cooking device 1000 is performed on the user interface 2500. For example, if the cooking appliance 1000 is a coffee machine, the icon 212 of the coffee machine is displayed at a position corresponding to the second cooking area (cooking area at the bottom left), so that the coffee machine is displayed in the second cooking area (cooking area at the bottom left). You can print that it is located in the cooking area (at the bottom left). Additionally, when the coffee machine is being co-heated without water inside, the heating device 2000 may inform the user that the coffee machine is being co-heated through a display that causes the coffee machine icon to blink. Alternatively, the location information, identification information, and co-heating status of the cooking device 1000 may be output in the form of a text notification (e.g., “The coffee machine in cooking area 1 is co-heating”) and an audio notification. Alternatively, the user may be notified that the coffee machine is being co-heated through a circular graphic blinking around the icon 212 of the coffee machine. In one embodiment, the method of notifying the user that the coffee machine is being co-heated may be a combination of various methods.

Figure 22 is a flowchart for explaining a method by which a heating device determines the position of a cooking appliance according to an embodiment of the present disclosure.

In step S2201, the heating device 2000 may transmit a preset first level of power to the cooking appliance 1000 in order to drive the communication interface 1030 of the cooking appliance 1000. At this time, the heating device 2000 may operate in a small home appliance detection mode. The first level of power is power for driving the communication interface 1030 of the cooking appliance 1000, and may be, for example, 100-300W.

In step S2202, when the cooking appliance 1000 according to an embodiment of the present disclosure receives the first level of power from the heating device 2000, it activates the communication interface 1030 and sends a first wireless communication signal. Can be transmitted. For example, the cooking appliance 1000 may use short-range wireless communication (eg, Bluetooth, BLE, etc.) to advertise the first wireless communication signal including the first packet at regular intervals.

In step S2203, when receiving the first wireless communication signal transmitted from the communication interface 1030 of the cooking appliance 1000, the heating device 2000 according to an embodiment of the present disclosure uses a plurality of different power transmission patterns. Accordingly, power can be transmitted in multiple cooking areas.

According to an embodiment of the present disclosure, the first packet included in the first wireless communication signal transmitted from the cooking appliance 1000 may not include location information of the cooking appliance 1000. At this time, the heating device 2000 cannot know exactly which cooking area the cooking device 1000 is located on. Accordingly, the heating device 2000 may control the inverter circuit 2113 to output power according to different power transmission patterns for each cooking area in order to confirm the location of the cooking appliance 1000. For example, when the heating device 2000 includes three cooking zones, the heating device 2000 outputs power according to a first power transmission pattern through the first operating coil corresponding to the first cooking zone. , so that power according to the second power transmission pattern is output through the second operating coil corresponding to the second cooking region, and power according to the third power transmission pattern is output through the third operating coil corresponding to the third cooking region. The inverter circuit 2113 can be controlled. Since step S2203 corresponds to step S1830 of FIG. 18, redundant description will be omitted.

In step S2204, the cooking appliance 1000 according to an embodiment of the present disclosure may detect the first power transmission pattern. According to an embodiment of the present disclosure, the cooking appliance 1000 may detect one of a plurality of power transmission patterns by analyzing the voltage output from the rectifier. For example, when the cooking appliance 1000 is located in the first cooking area, the cooking appliance 1000 analyzes the first voltage output from the rectifier, and the maintenance time of the power transmission section T1 is 3 seconds, A first power transmission pattern in which the maintenance time of the power cut-off period T2 is 1 second can be detected.

In step S2205, the cooking appliance 1000 according to an embodiment of the present disclosure may transmit a second wireless communication signal including information about the first power transmission pattern and identification information of the cooking appliance 1000.

The information about the first power transmission pattern may include at least one of the identification value of the first power transmission pattern, the maintenance time of the power transmission section, the maintenance time of the power cutoff section, and the power level, but is not limited thereto. The identification information of the cooking device 1000 is unique information for identifying the cooking device 1000, and includes Mac address, model name, device type information (e.g., IH type ID or heater type ID, motor type ID), It may include at least one of manufacturer information (e.g., Manufacture ID), serial number, and manufacturing time, but is not limited thereto.

In step S2206, the heating device 2000 according to an embodiment of the present disclosure determines the first cooking area corresponding to the first power transmission pattern as the location of the cooking appliance 1000, based on the second wireless communication signal. You can. For example, the heating device 2000 checks information about the first power transmission pattern included in the second wireless communication signal and compares the first power transmission pattern with information about a plurality of pre-stored power transmission patterns, The first cooking area corresponding to the second power transmission pattern may be identified. At this time, the heating device 2000 may determine that the cooking appliance 1000, which has detected the first power transmission pattern, is located in the first cooking area.

According to one embodiment of the present disclosure, the heating device 2000 outputs a notification to confirm the location of the cooking appliance 1000 when the second wireless communication signal does not include information about a specific power transmission pattern. You can. For example, if the heating device 2000 receives a second wireless communication signal, but the second wireless communication signal does not include information about a specific power transmission pattern, the cooking device 1000 is a communication-capable cooking device. , Since the cooking appliance 1000 may be viewed as being misplaced and unable to detect a specific power transmission pattern, the heating device 2000 may output a notification to confirm the location of the cooking appliance 1000.

According to an embodiment of the present disclosure, the heating device 2000 may display a notification to check the location of the cooking appliance 1000 on the display unit or output it as a voice. After outputting a notification to confirm the location of the cooking appliance 1000, the heating device 2000 may retransmit power to a plurality of cooking zones according to a plurality of different power transmission patterns.

In step S2207, the heating device 2000 may output information about the first cooking area where the cooking appliance 1000 is located and identification information of the cooking appliance 1000. For example, the heating device 2000 displays identification information of the first cooking appliance 1000 in the area that displays the power level of the first cooking zone on the GUI, thereby allowing the cooking appliance 1000 to be installed in the first cooking zone. The location can be indicated. Since step S2207 corresponds to step S1870 of FIG. 18, redundant description will be omitted.

Meanwhile, according to an embodiment of the present disclosure, the heating device 2000 may identify the location of the cooking appliance 1000 using the NFC function instead of the power transmission pattern. For example, the heating device 2000 and the cooking appliance 1000 may each be provided with a communication coil 1002 and an NFC module (NFC chip). The communication coil 1002 may be an NFC antenna coil, and the NFC module may include circuitry for NFC communication. Meanwhile, when the heating device 2000 includes a plurality of cooking zones, an NFC antenna coil may be disposed in each of the plurality of cooking zones.

According to an embodiment of the present disclosure, the NFC antenna coil included in the heating device 2000 and the NFC antenna coil included in the cooking appliance 1000 may be disposed at positions corresponding to each other. For example, if the NFC antenna coil included in the heating device 2000 is placed in the center of each cooking area, the NFC antenna coil included in the cooking device 1000 may also be placed in the center of the bottom of the cooking device 1000. there is. Additionally, if the NFC antenna coil included in the heating device 2000 is placed at the edge (e.g., outside the transmitting coil), the NFC antenna coil of the cooking appliance 1000 may also be placed at the bottom edge of the cooking appliance 1000. there is.

According to an embodiment of the present disclosure, the NFC antenna coil included in the heating device 2000 is disposed at the edge of each cooking area, and the NFC antenna coil included in the cooking appliance 1000 is located at the center of the bottom of the cooking appliance 1000. can be placed in Conversely, the NFC antenna coil included in the heating device 2000 may be placed in the center of each cooking area, and the NFC antenna coil included in the cooking appliance 1000 may be placed at the bottom edge of the cooking appliance 1000.

Meanwhile, the NFC module included in the heating device 1000 and the cooking appliance 1000 may operate as an NFC tag or an NFC reader depending on the situation. Let us first look at an embodiment in which the NFC module of the heating device 2000 operates as an NFC reader and the NFC module of the cooking appliance 1000 operates as an NFC tag with reference to FIG. 23.

FIG. 23 is a flowchart illustrating a method in which a heating device identifies the location of a cooking appliance using an NFC tag included in the cooking appliance according to an embodiment of the present disclosure.

In step S2301, the heating device 2000 may recognize the NFC tag of the cooking appliance 1000. When the heating device 2000 includes a plurality of cooking zones, an NFC reader may be provided for each cooking zone. The NFC reader and NFC tag may each include an NFC antenna coil. According to an embodiment of the present disclosure, when the cooking appliance 1000 is placed in any one cooking area, one of a plurality of NFC readers corresponding to each of the plurality of cooking areas may recognize the NFC tag of the cooking appliance 1000. You can. For example, when the cooking appliance 1000 is placed in the first cooking area, the first NFC reader provided in the first cooking area may recognize the NFC tag of the cooking appliance 1000. That is, when the cooking appliance 1000 is placed in the first cooking area, the distance between the NFC antenna coil included in the first cooking area and the NFC antenna coil of the cooking appliance 1000 is within a predetermined distance (e.g., 10 cm), The first NFC reader of the heating device 2000 can recognize the NFC tag of the cooking appliance 1000.

Recognizing an NFC tag may include receiving information stored in the NFC tag. For example, the heating device 2000 may obtain information stored in the NFC tag of the cooking appliance 1000 by recognizing the NFC tag of the cooking appliance 1000. According to an embodiment of the present disclosure, the NFC tag of the cooking appliance 1000 may store pre-agreed simple information so that the heating device 2000 can recognize the cooking appliance 1000. For example, the NFC tag of the cooking appliance 1000 may include identification information indicating the type of the cooking appliance 1000.

In step S2302, the heating device 2000 may identify that the cooking appliance 1000 is located in a cooking area corresponding to an NFC reader that recognizes the NFC tag of the cooking appliance 1000. NFC is a non-contact wireless communication technology that can exchange data within a short distance of about 10cm using a frequency of 13.56MHz. Therefore, when the first NFC reader among the plurality of NFC readers recognizes the NFC tag of the cooking appliance 1000, the heating device 2000 is located near the first NFC reader (i.e., in the first cooking area where the first NFC reader is provided). It can be determined that the cooking device 1000 is located at (above).

In step S2303, the heating device 2000 may output information about the cooking area where the cooking appliance 1000 is located. Additionally, the heating device 2000 may also output identification information of the cooking appliance 1000 obtained from the NFC tag of the cooking appliance 1000. For example, the heating device 2000 displays identification information (e.g., an icon) of the first cooking appliance 1000 in an area that displays the power level of the first cooking zone on the GUI, thereby allowing the cooking appliance 1000 to It may indicate that it is located in the first cooking area.

With reference to FIG. 24 , let's take a closer look at the operation of the heating device 2000 to identify the location of the cooking appliance 1000 using the NFC tag included in the cooking appliance 1000.

FIG. 24 is a diagram illustrating an operation in which a heating device identifies the location of a cooking appliance using an NFC tag included in the cooking appliance according to an embodiment of the present disclosure. In FIG. 24 , the case where the cooking appliance 1000 is a coffee machine will be described as an example.

Referring to FIG. 24, the heating device 2000 includes a first NFC reader 231 in the first cooking area at the upper left, and a second NFC reader 232 in the second cooking area at the lower left. , a third NFC reader 233 may be included in the third cooking area in the center right. The first NFC reader 231, the second NFC reader 232, and the third NFC reader 233 may be placed under the top plate (tempered glass) of the heating device 2000, and may be disposed under the top plate (tempered glass) of the heating device 2000. It can also be placed above. Additionally, the first NFC reader 231, the second NFC reader 232, and the third NFC reader 233 may be placed in the center of each cooking zone or at the edges of each cooking zone. Each of the first NFC reader 231, the second NFC reader 232, and the third NFC reader 233 may include an NFC antenna coil.

When the user places the cooking appliance 1000 on the third cooking area in the center right and presses the power button, the third NFC reader 233 of the heating device 2000 uses the NFC tag 234 of the cooking appliance 1000. It can be recognized, and the recognized result can be transmitted to the processor 2200. For example, the third NFC reader 233 is located within a predetermined distance (e.g., 10 cm) from the NFC tag 234, so the identification information (e.g., product type) of the cooking appliance 1000 stored in the NFC tag 234 (coffee machine) information) may be acquired, and the obtained identification information of the cooking appliance 1000 may be transmitted to the processor 2200.

Since the third NFC reader 233 recognized the NFC tag 234 of the cooking appliance 1000, the processor 2200 of the heating device 2000 recognizes the NFC tag 234 of the cooking appliance 1000, and thus The cooking appliance 1000 can be identified by its location. In addition, the processor 2200 of the heating device 2000 determines that the cooking appliance 1000 is a first type of cooking appliance 1000a based on identification information (e.g., product type (coffee machine) information) of the cooking appliance 1000. ) or a second type cooking appliance (1000b).

The heating device 2000 may output location information of the cooking device 1000, identification information of the cooking device 1000, and whether the cooking device 1000 is being co-heated through the user interface 2500. For example, when the cooking appliance 1000 is a coffee machine that is the second type of cooking appliance 1000b, the heating device 2000 moves the icon 235 of the coffee machine to the third cooking zone (cooking zone in the center right). By displaying the position corresponding to , it is possible to output that the coffee machine is located in the third cooking area (cooking area in the center right). Additionally, the heating device 2000 may output a notification (eg, “The coffee machine in cooking zone 3 is being cooled”) when the coffee machine is cold-heating.

FIG. 25 is a flowchart illustrating a linked operation between a heating device and a cooking device when it is determined that the cooking device is being co-heated according to an embodiment of the present disclosure.

The flowchart according to FIG. 25 may be followed by the flowchart of the co-heating determination method according to FIG. 17a. Alternatively, the operation of the cooking appliance 1000 may be performed following the flowchart shown in FIGS. 17B to 17D.

In step S2502, the heating device 2000 determines whether the cooking appliance 1000 is being co-heated according to the co-heating determination method according to FIG. 17 . If the processor 2200 of the heating device 2000 determines that the cooking appliance 1000 is being co-heated, it notifies the cooking appliance 2503 that it is co-heating in step S2503.

The cooking appliance 1000 that has received the co-heating notification stops heating the heater through the relay 1007 or the thermal fuse 1008 in step S2505 to prevent overheating of the heater due to co-heating. Additionally, in step S2507, if the cooking appliance 1000 is a device capable of displaying a display or outputting audio, the user may be notified that the cooking appliance 1000 is being co-heated by displaying or outputting audio to indicate that the cooking appliance 1000 is being co-heated. there is.

Additionally, if it is determined in step S2502 that the cooking device 1000 is being co-heated, in step S2504, the processor 2200 of the heating device 2000 controls to block wireless power transmission through the transmitting coil 2120.

In step S2508, the processor 2200 of the heating device 2000 may output that the cooking appliance 1000 is being co-heated through its output interface 2510. According to one embodiment, the processor 2200 may output to the output interface 2510 the type of cooking appliance 1000 being co-heated and the cooking area in which the cooking appliance 1000 is placed. Optionally, the processor 2200 of the heating device 2000 may notify the registered mobile device through the communication interface 2300 that the cooking device 1000 is being co-heated. In addition, the processor 2200 controls to notify the pre-registered mobile device that the cooking appliance 1000 is being co-heated through the communication interface 2300, and determines the type of the cooking appliance 1000 and the cooking appliance 1000. It can be controlled to notify the mobile device of which cooking area it is placed in. Optionally, the processor 2200 of the heating device 2000 may notify a registered remote server through the communication interface 2300 that the cooking appliance 1000 is being co-heated. In addition, the processor 2200 controls to notify the pre-registered server that the cooking appliance 1000 is being co-heated through the communication interface 2300, and also determines the type of the cooking appliance 1000 and which cooking appliance 1000 it is. It can be controlled to notify the server whether it is placed in the cooking area.

Figure 26 is a flowchart showing a method of determining co-heating while a heating device reheats a cooking appliance according to an embodiment of the present disclosure.

Referring to FIG. 26, in step S2620, the heating device 2000 continues to heat the cooking appliance 1000. According to FIG. 17A , when the heating device 2000 starts operating by a user input, a co-heating determination may be made for the first time or even if there is no co-heating determination at the start of the operation, a co-heating determination may be made during heating as shown in FIG. 26 . Co-heating is determined during heating in a situation where all the water in the cooking device 1000 evaporates and disappears during heating, or when cooking is completed and the user removes the water or cooking object from the cooking device 1000 and places it back on the heating device 2000. However, the determination of co-heating while heating the cooking device 1000 is not limited to this.

In step S2604, the heating device 2000 blocks heating for a third predetermined time while heating the cooking device 1000 through the transmission coil 2120. The heating device 2000 is attached to the first temperature sensor unit 1041 and the bracket 1034 to continuously measure the internal temperature of the cooking device 1000 during heating and when the heating is turned off for a third predetermined time, thereby indirectly Temperature information can be continuously obtained through the second temperature sensor unit 1042 that measures the temperature of the heater 1014. Of course, in order to save resources, the heating device 2000 may selectively acquire temperature information only during the third predetermined time, and may acquire the temperature information starting from a predetermined time (for example, 3 seconds) just before the third predetermined time starts. 3 Temperature information can be selectively acquired only for a certain period of time.

In step S2606, the processor 2200 of the heating device 2000 determines whether to co-heat based on the relationship between the temperature of the food (water) and the temperature of the heater 1014. Determining co-heating can be done in the same way as the method described in FIG. 12. The processor 2200 of the heating device 2000 outputs output to the cooking device 1000 until a third predetermined time (section t ₃ to t ₄ in FIG. 12) to determine whether the cooking device 1000 is being heated. Block transmission. The length of the third predetermined time may be set differently depending on various conditions, but may be approximately 5 seconds. Third, the bracket 1034 (indirectly measures the temperature of the heater 1041) and the water temperature (internal temperature of the cooking appliance 1000) are measured for a predetermined period of time to determine the value at which the (bracket-water) temperature continues to rise. If maintained, the processor 2200 of the heating device 2000 may determine that the cooking device 1000 is being co-heated. Conversely, when the temperature of the bracket 1034 and the water are measured for a third predetermined period of time and a value in which the (bracket-water) temperature decreases is found, the processor 2200 of the heating device 2000 performs co-heating of the cooking device 1000. It can be judged that it does not exist. When determining co-heating, the processor 2200 of the heating device 2000 determines not only the change in (bracket-water) temperature but also whether the temperature of the bracket 1034 increases or decreases, and determines that it is co-heating if the former is the case, and determines that it is co-heating if it is the latter. You can judge that it is not.

In step S2608, the processor 2200 of the heating device 2000 may notify the cooking device 1000 of co-heating when it is determined that the cooking device 1000 is co-heating during heating, and output the heating device 2000. Through the interface 2510, the status of co-heating can be output through a display or audio. If it is determined that it is co-heating, the processor 2200 of the heating device 2000 may control the inverter circuit 2113 to block wireless power transmission to the cooking appliance 1000 through the transmitting coil 2120 in step S2610. Additionally, in step S2612, the processor 2200 of the heating device 2000 may transmit the status of co-heating to the user's mobile device or server. In step S2614, after blocking heating of the cooking device 1000, the heating device 2000 may be added to the user. It can be converted to input standby state.

If it is determined in step S2606 that the cooking device 1000 is not currently being co-heated, the heating device 2000 may heat the cooking device 1000 again under the same output conditions that were being heated before the co-heating determination in step S2616. Cooking can be ended when certain cooking conditions (cooking time or receiving user input) are met.

In step S2609, the cooking appliance 1000, which has received a co-heating notification from the heating device 2000, controls the relay 1007 or the thermal fuse 1008 to stop heating the heater through the control unit 1020. In step S2611, the control unit 1020 of the cooking appliance 1000 may selectively output (display, voice output, etc.) whether or not to co-heat through the output interface of the cooking appliance 1000.

FIG. 27 is a diagram for explaining an operation of a heating device interoperating with a server device and a display device according to an embodiment of the present disclosure.

Referring to FIG. 27, the cooking system 100 according to an embodiment of the present disclosure may further include a server device 3000 and a display device 4000 in addition to the cooking device 1000 and the heating device 2000. Since the cooking system 100 including the cooking appliance 1000 and the heating device 2000 has been described in FIG. 1, the server device 3000 and the display device 4000 will be described here.

According to an embodiment of the present disclosure, the server device 3000 may include a communication interface for communicating with an external device. The server device 3000 may communicate with the cooking appliance 1000, the heating device 2000, or the display device 4000 through a communication interface. According to an embodiment of the present disclosure, the cooking appliance 1000 transmits the identification information of the cooking appliance 1000 or the user's identification information (login information, account information) to the server device 3000, and the cooking appliance 1000 ) or the user's identification information (login information, account information) can be authenticated by the server device 3000 to access the server device 3000. In addition, the heating device 2000 transmits the identification information of the heating device 2000 or the user's identification information (login information, account information) to the server device 3000, and the identification information of the heating device 2000 or the user's By authenticating identification information (login information, account information) from the server device 3000, the server device 3000 can be accessed.

According to an embodiment of the present disclosure, the server device 3000 may include an AI processor. The AI processor can train an artificial neural network to create an artificial intelligence model to recommend a temperature control method and/or a co-heating judgment method. ‘Learning’ an artificial neural network can mean creating a mathematical model that allows the connections of neurons that make up the artificial neural network to make optimal decisions while appropriately changing weights based on data.

The display device 4000 according to an embodiment of the present disclosure is connected to the heating device 2000 and/or the server device 3000, and displays information provided by the heating device 2000 and/or the server device 3000. It may be a display device. According to an embodiment of the present disclosure, the display device 4000 may transmit and receive information with the server device 3000 through a specific application (eg, a home appliance management application) installed on the display device 4000.

According to an embodiment of the present disclosure, the display device 4000 may be a device connected with the same account information as the cooking appliance 1000 and the heating device 2000. The display device 4000 may be directly connected to the cooking device 1000 and the heating device 2000 through a short-range wireless communication channel, or indirectly to the cooking device 1000 and the heating device 2000 through the server device 3000. It may be connected.

The display device 4000 according to an embodiment of the present disclosure may be implemented in various forms. For example, the display device 4000 described in this disclosure may be a mobile terminal, a refrigerator including a display, a TV, a computer, an oven including a display, etc., but is not limited thereto. In addition, mobile terminals include smart phones, laptop computers, tablet PCs, digital cameras, e-book terminals, digital broadcasting terminals, PDAs (Personal Digital Assistants), PMPs (Portable Multimedia Players), navigation, There may be an MP3 player, etc., but it is not limited to this. For example, a mobile terminal may be a wearable device that can be worn by a user. Hereinafter, for convenience of explanation, the case where the display device 4000 is a smartphone will be described as an example.

According to an embodiment of the present disclosure, the display device 4000 or the heating device 2000 receives a voice signal, which is an analog signal, through a microphone, and reads the voice portion into a computer using an Automatic Speech Recognition (ASR) model. It can be converted to text whenever possible. The display device 4000 or the heating device 2000 may interpret the converted text using a Natural Language Understanding (NLU) model to obtain the user's speech intention. Here, the ASR model or NLU model may be an artificial intelligence model. Artificial intelligence models can be processed by an artificial intelligence-specific processor designed with a hardware structure specialized for processing artificial intelligence models. Artificial intelligence models can be created through learning. This learning may be performed in the device itself (e.g., display device 4000 or heating device 2000) on which artificial intelligence according to the present disclosure is performed, or may be performed through a separate server device 3000 and/or system. there is. Examples of learning algorithms include supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but are not limited to the examples described above.

An artificial intelligence model may be composed of multiple neural network layers. Each of the plurality of neural network layers has a plurality of weight values, and neural network calculation is performed through calculation between the calculation result of the previous layer and the plurality of weights. Multiple weights of multiple neural network layers can be optimized by the learning results of the artificial intelligence model. For example, a plurality of weights may be updated so that loss or cost values obtained from the artificial intelligence model are reduced or minimized during the learning process. Artificial neural networks may include deep neural networks (DNN), for example, Convolutional Neural Network (CNN), Deep Neural Network (DNN), Recurrent Neural Network (RNN), Restricted Boltzmann Machine (RBM), Deep Belief Network (DBN), Bidirectional Recurrent Deep Neural Network (BRDNN), or Deep Q-Networks, etc., but are not limited to the examples described above.

According to an embodiment of the present disclosure, the display device 4000 may execute a specific application (eg, a home appliance management application) provided by the server device 3000 based on user input. In this case, the user can set the order of the IH container detection operation and the small home appliance detection operation through the execution window of the application and set the heating device 2000 to perform co-heating detection of the cooking appliance 1000. Hereinafter, we will look at an operation in which the user sets the order of the IH container detection operation and the small home appliance detection operation using a specific application (eg, home appliance management application) provided by the server device 3000.

FIG. 28 is a diagram for explaining an operation of providing information about a heating device through a display device according to an embodiment of the present disclosure.

Referring to FIG. 28, when a user executes an application for managing the user's home appliances on the display device 4000, the display device 4000 receives information from the server device 3000 and displays home appliances in the application execution window. You can display a list of devices. The user's home appliances may be registered with the same account on the server device 3000. Home appliances may include a cooking device 1000 and a heating device 2000.

For example, the display device 4000 may display a list of icons representing a heating device (2000, induction), a coffee machine, a toaster, a refrigerator, etc. in the application execution window. In this case, the display device 4000 may A user input for selecting an icon 2801 representing the device 2000 may be received.

Figure 29 is a diagram for explaining the operation of providing a detection operation sequence and a setting screen for co-heating through a display device according to an embodiment of the present disclosure.

Referring to FIG. 29, the display device 4000 may display a settings screen related to the heating device 2000 in an application execution window in response to a user input for selecting an icon 2801.

For example, the display device 4000 displays a first field 2802 for selecting a detection operation sequence and a second field 2803 for asking whether to determine whether or not to co-heat the detected small home appliance in an application execution window. It can be displayed in . The first field 2802 may include a GUI that can determine the order of detecting small home appliances and detecting IH containers, but is not limited to this. The user may set the heating device 2000 to detect small home appliances before detecting IH containers through the first field 2702, or to detect IH containers before detecting small home appliances.

A window may be displayed in the second field 2703 to select whether to determine whether the heating device 2000 detects small home appliances as co-heating. At this time, the user can select whether to perform a co-heating determination when starting to heat the cooking appliance 1000, and can also select whether to perform a co-heating determination during heating. Although not shown, a menu may be provided in the second field to determine the length of the heating cut-off time (second predetermined time and third predetermined time) for determining co-heating, and the user can also set the length of the heating cut-off time. . If the user does not select a heating cutoff time (second predetermined time and third predetermined time), the cutoff time for co-heating may be set to a default setting. The processor 2200 of the heating device 2000 sets the initial heating time (a first predetermined time) and the heating cutoff time (a second predetermined time and a third predetermined time) according to the type and cooking capacity of the detected small home appliance. The settings can be changed automatically. For example, if the first predetermined time length for the cooking appliance 1000 with a cooking capacity of 800ml is 10 seconds, the first predetermined time length for the cooking appliance 1000 with a cooking capacity of 1200ml can be changed to 13 seconds.

Figure 30 is a diagram for explaining the operation of notifying whether co-heating is performed through a display device according to an embodiment of the present disclosure.

Referring to FIG. 30, in the cooking system 100 according to an embodiment of the present disclosure, when the heating device 2000 detects that a cooking appliance 1000 is being co-heated, the display device 4000 displays co-heating. The type, location, and whether or not the cooking device 1000 is being used can be displayed.

A pot (1000c) is placed on the first cooking area on the upper left side of the top plate of the heating device (2000), and a coffee dripper (1000d) is placed on the third cooking zone on the right side of the top plate of the heating device (2000). Because there is no water, it is being heated empty. The first field 3001 of the display device 4000 displays information that two cooking zones in the heating device 2000 are currently in operation and the coffee dripper 1000d is brewing. In the second field 3002, graphics and numbers indicate that the first cooking area at the upper left of the top plate of the heating device 2000 is being heated to heating level 9. In the second field 3002, a graphic image (icon) in the upper left corner indicates which of the three cooking zones is being heated. The third field 3003 indicates that the cooking device 1000 is not placed on the second cooking area at the bottom left of the top plate of the heating device 2000. In the fourth field (3004), the graphic image (icon) in the upper left corner indicates that the cooking device placed on the right cooking area among the three burners is a coffee dripper (1000d) and is in the process of co-heating (“There is no water in the dripper”). It indicates that heating has been stopped, and a cancel button is displayed so that the user can cancel the current heating cancellation status. When the user fills the coffee dripper 1000d with water and presses the 'Cancel' button in the fourth field 3004, the heating device 2000 can resume heating the coffee dripper 1000d.

The method according to an embodiment of the present disclosure may be implemented in the form of program instructions that can be executed through various computer means and recorded on a computer-readable medium. Computer-readable media may include program instructions, data files, data structures, etc., singly or in combination. Program instructions recorded on the medium may be specially designed and configured for this disclosure or may be known and available to those skilled in the art of computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic media such as floptical disks. -Includes optical media (magneto-optical media) and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, etc. Examples of program instructions may include machine language code such as that created by a compiler, as well as high-level language code that can be executed by a computer using an interpreter, etc.

Some embodiments of the present disclosure may also be implemented in the form of a recording medium containing instructions executable by a computer, such as program modules executed by a computer. Computer-readable media can be any available media that can be accessed by a computer and can include both volatile and non-volatile media, removable and non-removable media. Additionally, computer-readable media may include both computer storage media and communication media. Computer storage media may include both volatile and non-volatile, removable and non-removable media implemented in any method or technology for storage of information such as computer-readable instructions, data structures, program modules, or other data. Communication media typically includes computer-readable instructions, data structures, program modules, or other data in a modulated data signal, such as a carrier wave, or other transmission mechanism, and may include any information delivery medium. Additionally, some embodiments of the present disclosure may be implemented as a computer program or computer program product that includes instructions executable by a computer, such as a computer program executed by a computer.

A storage medium that can be read by a device may be provided in the form of a non-transitory storage medium. Here, 'non-transitory storage medium' simply means that it is a tangible device and does not contain signals (e.g. electromagnetic waves). This term is used to refer to cases where data is semi-permanently stored in a storage medium and temporary storage media. It does not distinguish between cases where it is stored as . For example, a 'non-transitory storage medium' may include a buffer where data is temporarily stored.

According to one embodiment, methods according to various embodiments disclosed in this document may be provided and included in a computer program product. Computer program products are commodities and can be traded between sellers and buyers. A computer program product may be distributed in the form of a machine-readable storage medium (e.g. compact disc read only memory (CD-ROM)) or through an application store or between two user devices (e.g. smartphones). It may be distributed in person or online (e.g., downloaded or uploaded). In the case of online distribution, at least a portion of the computer program product (e.g., a downloadable app) is stored on a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or a relay server. It can be temporarily stored or created temporarily.

100: Cooking system
1000, 1000a, 1000b, 1000b-1, 1000b-2: Cooking appliances
1000c: pot
1000d: coffee dripper
1000e: Cooking appliance
1001: pickup coil
1002: Communication coil
1005: PCB
1006: resonance unit
1007: Relay
1008: Thermal fuse
1010: Power unit
1012: Rectifier circuit
1014: heater
1014-1: Server heater
1015: Switch part
1020: Control unit
1024: Insulation pad
1030: Communication interface
1031: Near-field communication department
1032: Department of Telecommunications
1034: bracket
1040: Sensor unit
1041: First temperature sensor unit
1042: Second temperature sensor unit
1050: User interface
1051: Output interface
1060: memory
1100: wireless power receiver
1300: Communication interface
1301: Top cover
1302: Internal/external sealing
1303: Side sensor module
1305: Inner case
1312: BLE PBA module
1314: sensor leg
1315: Floor sensor
1316: pickup coil
1320: connection
1350: Coffee Server
1360: Solenoid valve
1370: Server detection sensor
1380:LED
2000: Heating device
2001: Communication Coil
2100: wireless power transmission unit
2110: driving unit
2112: Rectifier circuit
2113: Inverter circuit
2114: Distribution circuit
2115: Current sensing circuit
2116: Drive processor
212: Icon of coffee machine
2200: Processor
2300: Communication interface
231: First NFC reader
2310: Near Field Communication Department
2320: Department of Telecommunications
233: Third NFC reader
234: NFC tag
235: Icon of coffee machine
2400: Sensor unit
2410: container detection sensor
2420: Temperature sensor
2500: User Interface
2510: output interface
2520: Input interface
2600: memory
3001: first field
3002: Second field
3003: Third field
3004: 4th field
6000: Coffee dripper

Claims (20)

A wireless power transmission unit including a transmission coil for transmitting wireless power and an inverter circuit for driving the transmission coil;
At least one processor for controlling the inverter circuit; and
Includes a communication interface for communicating with the cooking appliance,
The communication interface is configured to operate the cooking device during a first predetermined period of time during which a heating operation is performed from the cooking appliance through the transmission coil and during a second predetermined period of time during which the heating operation through the transmission coil is blocked after the first predetermined time. Receiving the temperature of the bottom surface of and the temperature inside the cooking appliance,
The at least one processor,
Controlling the inverter circuit for the second predetermined time to block the heating operation through the transmission coil, based on the relationship between the temperature of the bottom surface of the cooking appliance and the temperature inside the cooking appliance during the second predetermined time A wireless power transmission device that determines whether the cooking device is co-heated. The method of claim 1, wherein the at least one processor:
A wireless power transmission device that determines that the cooking appliance is co-heated when a value obtained by subtracting the temperature inside the cooking appliance from the temperature of the floor increases during the second predetermined time period. The method of claim 1, wherein the at least one processor:
A wireless power transmission device that determines that the cooking appliance is not co-heated when the value obtained by subtracting the temperature inside the cooking appliance from the temperature of the floor decreases during the second predetermined time period. The method of claim 1, wherein the at least one processor:
A wireless power transmission device that determines that the cooking appliance is co-heated if the slope corresponding to a value obtained by subtracting the temperature inside the cooking appliance from the temperature of the floor during the second predetermined time is a positive value. The method of claim 1, wherein the at least one processor:
A wireless power transmission device that determines that the cooking appliance is co-heated if a slope corresponding to a value obtained by subtracting the temperature inside the cooking appliance from the temperature of the floor during the second predetermined time is greater than a predetermined value. According to claim 1,
The at least one processor,
A wireless power transmission device that determines that the cooking appliance is co-heated when the temperature of the floor surface increases during the second predetermined time. According to claim 1,
The at least one processor controls the inverter circuit to heat the cooking appliance through a predetermined power for determining co-heating rather than the power corresponding to the user input during the first predetermined time. According to claim 7,
The communication interface receives identification information of the cooking appliance from the cooking appliance,
The at least one processor,
A wireless power transmission device that varies the amount of the predetermined power based on identification information of the cooking device. The method of claim 7, wherein the at least one processor controls the inverter circuit to output power corresponding to the user input after the second predetermined time when it is determined that the cooking appliance is not co-heating. Wireless power transmission device. According to claim 1,
The at least one processor,
A wireless power transmission device that controls to transmit communication power to the cooking appliance based on a user's heating start input. The method of claim 1, wherein the at least one processor:
A wireless power transmission device that, when it is determined that the cooking appliance is co-heating, notifies the cooking appliance that it is co-heating through the communication interface. According to claim 1,
The communication interface is configured to operate during a third predetermined time during which the heating operation through the transmission coil is blocked by the at least one processor while the cooking appliance is performing a heating operation through the transmission coil after the second predetermined time has elapsed. Receiving the temperature of the bottom surface and the temperature inside the cooking appliance,
The at least one processor,
A wireless power transmission device that further determines whether the cooking appliance is co-heated based on the relationship between the temperature of the bottom surface and the temperature inside the cooking appliance during the third predetermined time. According to claim 12,
The at least one processor,
A wireless power transmission device that further determines whether the cooking appliance is co-heated based on a change in temperature of the floor surface in addition to the relationship between the temperature of the floor surface and the temperature inside the cooking appliance during the third predetermined time period. . According to claim 13,
The at least one processor,
Wireless power transmission that determines that the cooking appliance is being co-heated when the temperature of the floor surface increases during the third predetermined period of time and the value obtained by subtracting the temperature inside the cooking appliance from the temperature of the floor surface increases. Device. According to claim 1,
output interface; and
It further includes a plurality of cooking areas,
The at least one processor controls an inverter circuit to transmit predetermined power to the plurality of cooking zones, and identifies at least one cooking zone in which the cooking appliance is located among the plurality of cooking zones according to load changes, A wireless power transmission device that controls to output the identified cooking area and whether it is co-heated through the output interface when it is determined that the cooking device is co-heated according to the determination of whether the cooking device is co-heated. According to claim 1,
The temperature of the bottom surface is the temperature of the heater of the cooking appliance,
The first temperature sensor unit measures the temperature of the heater of the cooking appliance. heating the cooking appliance for a first predetermined period of time via the transmitting coil;
blocking the operation of heating the cooking appliance through the transmission coil after the first predetermined time has elapsed;
acquiring a temperature of a bottom surface of the cooking appliance and an internal temperature of the cooking appliance during the first predetermined time period and a second predetermined time period when heating operation through the transmitting coil is blocked; and
A method of preventing co-heating in a wireless power transmission device, comprising determining whether the cooking appliance is co-heated based on a relationship between the temperature of the floor surface and the internal temperature of the cooking appliance. According to claim 17,
The step of determining whether the cooking appliance is co-heated based on the relationship between the temperature of the bottom surface and the internal temperature of the cooking appliance,
A method of preventing co-heating in a wireless power transmission device, comprising determining that the cooking device is co-heating when the temperature of the bottom surface minus the temperature inside the cooking device increases during the second predetermined time period. . A first temperature sensor unit for sensing the internal temperature of the cooking appliance;
a second temperature sensor unit for sensing the temperature of the bottom surface of the cooking appliance;
a communication interface for communicating with a power transmission device; and
Includes at least one processor,
The at least one processor determines the internal temperature of the cooking appliance by the first temperature sensor unit and the temperature inside the cooking appliance by the second temperature sensor unit during a second predetermined time period when the heating operation is blocked after a first predetermined time period during which the heating operation is performed. Obtaining the temperature of the bottom surface of the cooking appliance, and subtracting the internal temperature of the cooking appliance by the first temperature sensor unit from the temperature of the bottom surface of the cooking appliance by the second temperature sensor unit during the second predetermined time. If the value rises, it is determined that the cooking device is being co-heated,
The communication interface transmits a notification that the cooking appliance is co-heating to the power transmission device when it is determined that the cooking appliance is co-heating. According to claim 19,
Further comprising a relay or thermal fuse capable of blocking heating of the cooking device,
The at least one processor controls the relay or thermal fuse to block heating of the cooking appliance based on determining that the cooking appliance is being co-heated.

Images