WO2022030936A1

WO2022030936A1 - Smart electronic heating machine and operation method therefor

Info

Publication number: WO2022030936A1
Application number: PCT/KR2021/010122
Authority: WO
Inventors: 홍진혁; 박지훈
Original assignee: 애터미주식회사
Priority date: 2020-08-05
Filing date: 2021-08-03
Publication date: 2022-02-10
Also published as: KR20220017845A

Abstract

The present invention relates to a smart electronic heating machine which guarantees safe operation, and an operation method therefor. The operation method for a smart electronic heating machine, according to one embodiment of the present invention, is an operation method for a smart electronic heating machine, performed by a processor of the smart electronic heating machine, and may comprise the steps of: supplying, according to detection of a contact of a heating switch provided on a smart electronic heating machine, electric power to a heater for heating a cooking container placed on an upper plate of the smart electronic heating machine; collecting, from a plurality of first sensors provided below the upper plate, a result of detecting the amount of light passing through the upper plate, as electric power is supplied to the heater; and determining whether to supply electric power to the heater by determining whether liquid contained in the cooking container has overflowed, on the basis of the light amount detection result.

Description

Smart electric heating device and its operation method

The present invention relates to a smart electric heating device for ensuring safe cooking and an operating method thereof.

In general, food is cooked by being heated or boiled by a cooker in a state in which water or seasoning is added. Such cookers include various heating-type cookers such as a microwave oven, a gas range, an oven, a steamer, an electric rice cooker, and a pot. These heating cookers are much more convenient and cleaner than the methods of burning wood or oil in the past, and they are used a lot in recent years. have. According to this trend, not only electric ovens and microwave ovens, but also hot plate ranges and highlight ranges have been widely used in recent years.

In the case of gas ranges that are widely available now, most of them are installed in the sink, so cooking is convenient. There is something uncomfortable about it. Therefore, there is a need for a cooking device that can be used conveniently like a gas stove and can be used conveniently and safely with less concern about fire during cooking, such as an electric oven, microwave oven, or electric rice cooker. Range, highlight range, etc. are used.

However, hot plate ranges and highlight ranges have become more convenient because they use electricity, but since the heating coil inside the device heats the part of the plate on which the cooking vessel is seated, it may take a long time to heat up once. Not only that, there was a problem in that it was difficult to control the temperature of food as desired during cooking, such as the heated plate does not cool easily.

In order to solve this problem, an induction heating type cooker, aka an induction range, has been developed in which an induced current is generated by a magnetic field generated in a coil to heat a cooking vessel. However, even if food overflows while cooking food in the cooking container on the induction range, the power of the induction range continues to be supplied, and the induction range is contaminated by the overflowing food. , there was a problem that a fire occurred.

The above-mentioned background art is technical information that the inventor possessed for the derivation of the present invention or acquired in the process of derivation of the present invention, and cannot necessarily be said to be a known technique disclosed to the general public prior to the filing of the present invention.

Prior art: Korean Patent Publication No. 10-2020-0039510 (2020.10.07)

An object of the present invention is to block the risk of occurrence of odor and/or fire when food overflows and overheats and burns while cooking using a cooking container on a smart electric heating device.

An object of the present invention is to prevent a case in which heating efficiency is reduced or food is not cooked normally through an alarm on the location of a cooking container placed on a smart electric heating device.

An object of the present invention is to maximize energy efficiency by controlling the heating range according to the size of the cooking vessel placed on the smart electric heating device.

The problem to be solved by the present invention is not limited to the above-mentioned problems, and other problems and advantages of the present invention not mentioned can be understood by the following description, and more clearly understood by the embodiments of the present invention will be In addition, it will be understood that the problems and advantages to be solved by the present invention can be realized by means and combinations thereof indicated in the claims.

The method of operating a smart electric heating device according to an embodiment of the present invention is an operating method of a smart electric heating device performed by a processor of the smart electric heating device, in which the contact of a heating switch provided in the smart electric heating device is detected. Accordingly, the step of supplying power to the heater for heating the cooking vessel placed on the upper plate of the smart electric heating device, and as power is supplied to the heater, the detection result of the amount of light passing through the upper plate from the plurality of first sensors provided under the upper plate and determining whether the liquid contained in the cooking container overflows based on the light amount detection result, and determining whether to supply power to the heater.

A smart electric heating appliance according to an embodiment of the present invention includes a processor and a memory operably connected to the processor and storing at least one code executed by the processor, wherein the memory is executed by the processor when the processor is smart By sensing the contact of the heating switch provided in the electric heating device, power is supplied to the heater for heating the cooking vessel placed on the upper plate of the smart electric heating device, and as power is supplied to the heater, a plurality of It is possible to store a code for collecting the detection result of the amount of light passing through the upper plate from the first sensor, determining whether the liquid contained in the cooking vessel overflows based on the detection result of the amount of light, and determining whether to supply power to the heater.

In addition to this, another method for implementing the present invention, another system, and a computer-readable recording medium storing a computer program for executing the method may be further provided.

Other aspects, features and advantages other than those described above will become apparent from the following drawings, claims, and detailed description of the invention.

According to the present invention, safe cooking of a smart electric heating appliance can be ensured by blocking the risk of odor and/or fire when food overflows and overheats and burns while cooking using a cooking container on a smart electric heating appliance.

In addition, it is possible to prevent the case where the heating efficiency is reduced or the food is not cooked normally through the alarm of the location of the cooking vessel placed on the smart electric heating device.

In addition, energy efficiency can be maximized by controlling the heating range according to the size of the cooking vessel placed on the smart electric heating device.

Effects of the present invention are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

1 is an exemplary view of a smart electric heating device according to an embodiment of the present invention.

2 is a block diagram schematically illustrating the configuration of a smart electric heating device according to an embodiment of the present invention.

3A and 3B are exemplary views illustrating a smart electric heating device that guarantees safe cooking according to an embodiment of the present invention.

4A and 4B are exemplary views illustrating a smart electric heating device that ensures safe cooking according to another embodiment of the present invention.

5A and 5B are exemplary views illustrating a smart electric heating device having a position alarm function of a cooking vessel according to an embodiment of the present invention.

6a and 6b are exemplary views illustrating a smart electric heating device for controlling the induction heating range of the induction heater according to an embodiment of the present invention.

7 is an exemplary diagram illustrating the structure of an induction heater according to an embodiment of the present invention.

8 is a block diagram schematically illustrating the configuration of a smart electric heating device according to another embodiment of the present invention.

9 to 12 are flowcharts for explaining a method of operating a smart electric heating device according to an embodiment of the present invention.

Advantages and features of the present invention, and a method for achieving them will become apparent with reference to the detailed description in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments presented below, it can be implemented in a variety of different forms, and should be understood to include all transformations, equivalents, and substitutes included in the spirit and scope of the present invention. . The embodiments presented below are provided so that the disclosure of the present invention is complete, and to completely inform those of ordinary skill in the art to which the present invention pertains to the scope of the invention. In describing the present invention, if it is determined that a detailed description of a related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof. Terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

In addition, in this application, "unit" may be a hardware component such as a processor or circuit, and/or a software component executed by a hardware component such as a processor.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. decide to do

1 is an exemplary view of a smart electric heating device according to an embodiment of the present invention. In this embodiment, the smart electric heating appliance 100 may include one or more of induction and highlight. In the following drawings, the smart electric heating device 100 has been described with induction as an example, but the same can be applied to highlights other than induction. In the case of the induction heating method, the alternating magnetic field generated from the working coil reacts with the cooking vessel to generate Joule heat due to eddy current loss and heat due to hysteresis loss, so that food contained in the cooking vessel can be cooked. In the case of the highlight, it is a direct heating method, and the food contained in the cooking container can be cooked using heat generated by the resistance of the working coil. Hereinafter, in the claims, it is described as a heater to be applied to both the induction heater and the highlight heater.

Referring to FIG. 1 , the smart electric heating device 100 may include a top plate 110 , a cooking zone 120 , and a user interface 130 .

The top plate 110 may be provided in a flat plate shape so that a cooking vessel (eg, a pot, a frying pan, etc.) can be placed thereon. The upper plate 110 may not be easily broken or scratched because it is made of a tempered glass material or ceramic. Since the top plate 110 is made of a single seamless tempered glass material, even when food overflows the top plate 110 during cooking, it can be easily processed.

The cooking zone 120 may include an induction heater 121 and a leader line 122 . The induction heater 121 may be installed under the upper plate 110 to inductively heat the cooking vessel placed on the upper plate 110 . In this embodiment, the induction heater 121 may be composed of a working coil (121a in FIG. 6A).

The leader line 122 is displayed on the upper plate 110, so that it can be intuitively recognized that the induction heater 121 is embedded in the lower portion thereof. The leader line 122 may be displayed in the same manner as the pattern of the induction heater 121 . The cooking vessel may be determined according to the pattern of the leader line 122 . As an embodiment, the leader line 122 may be displayed in a circular pattern corresponding to the induction heater 121 of the circular pattern from FIG. 1 . In this embodiment, the induction heater 121 may be installed in a variety of patterns, such as circular, rectangular, arc-type.

In this embodiment, although it is described that one cooking zone 120 is provided in the smart electric heating device 100 , this is only an example, and a plurality of cooking zones 120 according to the size of the smart electric heating device 100 . ) can be installed. In this embodiment, it is assumed that one cooking zone 120 is installed for convenience of description.

The user interface 130 may include a power switch 131 , a first control unit 132a , a second control unit 132b , a timer 133 , and a display unit 134 .

The power switch 131 is provided under the top plate 110 , and can be input to supply power to the induction heater 121 that heats the cooking vessel placed on the top plate 110 . The initial input of the power switch 131 is performed by contact (touch), and when the first power switch 131 is input, AC power may be supplied to the induction heater 121 . In one embodiment, when the power switch 131 is input for the first time, power is supplied to the smart electric heating device 100 to start the operation of the smart electric heating device 100 , and power may be supplied to the induction heater 121 . When the power switch 131 is input again after power is supplied to the induction heater 121 , the power supply to the induction heater 121 may be cut off.

The first adjustment unit 132a may be input (contact, touch) to weaken the heating intensity of the induction heater 121 . The heating intensity of the induction heater 121 may be gradually weakened according to the number of inputs of the first adjusting unit 132a, and may be weakened to a preset minimum heating intensity.

The second control unit 132b may be input (contact, touch) to increase the heating intensity of the induction heater 121 . The heating intensity of the induction heater 121 may be gradually increased according to the number of inputs of the second adjusting unit 132b, and may be strengthened up to a preset maximum heating intensity.

A timer 133 may be input to set the heating time. A time set according to the number of times the timer 133 is input may be displayed on the display unit 134 . For example, each time the timer 133 is touched once, a preset time (eg, 10 minutes) may be accumulated and displayed on the display unit 134 . When the number of touches of the timer 133 exceeds a preset number (eg, 10 times), the time set by the timer 133 may be reset.

In this embodiment, a cadmium sulfide sensor (CDS) as a plurality of first sensors (141: 141_1, 141_2, ..., 141_N in FIG. 3A) is provided under the upper plate 110 and passes through the upper plate 110 light quantity detection results can be collected. Here, the upper plate 110 around which the plurality of first sensors 141: 141_1, 141_2, ..., 141_N are installed may be transparent or translucent and light may be transmitted therethrough.

In addition, in this embodiment, a light quantity detection sensor as a plurality of second sensors (142: 142_1, 142_2, ..., 142_N in FIG. 4A) is provided under the upper plate 110, and the second sensor 142 is irradiated with the irradiated light The reflected light reflected from the upper plate 110 and returned may be collected as a light amount detection result. Here, the upper plate 110 around which the plurality of second sensors 142: 142_1, 142_2, ..., 142_N are installed may be transparent or translucent and light may be transmitted therethrough.

In addition, in this embodiment, as a plurality of third sensors (143c, 143u, 143r, 143d, 143l in FIG. 5A ) provided between the lower part of the upper plate 110 and the upper part of the induction heater 121, metal detection using capacitance A sensor or an ultrasonic sensor/infrared sensor may be provided to analyze the position of the cooking vessel placed on the induction heater 121 and determine whether a portion of the cooking vessel has deviated from the cooking zone 120 .

2 is a block diagram schematically illustrating the configuration of a smart electric heating device according to an embodiment of the present invention. In the following description, the part overlapping with the description of FIG. 1 will be omitted. Referring to FIG. 2 , the smart electric heating device 100 includes an induction heater 121 , a user interface 130 , a sensor unit 140 , a first processing unit 150 , a second processing unit 160 , and a third processing unit ( 170 ) and a controller 180 .

The induction heater 121 may be installed under the upper plate 110 to heat the cooking vessel placed on the upper plate 110 . In this embodiment, the induction heater 121 may be composed of a working coil (121a in FIG. 6A).

The induction heater 121 may generate an AC magnetic field when AC power is supplied. When the power switch 131 is input, AC power may be supplied to the induction heater 121 to generate an AC magnetic field. The alternating magnetic field may react with the cooking vessel to generate Joule heat due to eddy current loss and heat due to hysteresis loss.

The user interface 130 may input a user's manipulation to operate the smart electric heating device 100 and display the user's input. In this embodiment, the user interface 130 may include a power switch 131 , a first control unit 132a , a second control unit 132b , a timer 133 and a display unit 134 , and Since the content is the same, a detailed description thereof will be omitted.

The sensor unit 140 is provided inside the smart electric heating device 100, and may include various sensors for detecting signals to ensure safe cooking and to generate an alarm for the position of the cooking vessel. In this embodiment, the sensor unit 140 may include a first sensor 141 , a second sensor 142 , and a third sensor 143 .

Illuminance sensors as the plurality of first sensors (141: 141_1,141_2, ..., 141_N in FIG. 3A ) may be disposed under the upper plate 110 . In more detail, a plurality of first sensors (141: 141_1,141_2, ..., 141_N in FIG. 3A) are disposed in each space of a plurality of partition walls divided along the outside of the induction heater 121 under the upper plate 110 can be

The light amount detection sensor as a plurality of second sensors (142: 142_1, 142_2, ..., 142_N in FIG. 4A ) may be disposed under the upper plate 110 . In more detail, a plurality of second sensors (142: 142_1, 142_2, ..., 142_N in FIG. 4A) are disposed in each space of a plurality of partition walls divided along the outside of the induction heater 121 under the upper plate 110 can be

A plurality of third sensors (143c, 143u, 143r, 143d, and 143l in FIG. 5A ) are metal detection sensors, or ultrasonic sensors/ It may include an infrared sensor.

The first processing unit 150 may process the smart electric heating device 100 to perform safe cooking by using the detection signal collected from the first sensor 141 and/or the second sensor 142 .

First, when the safe cooking execution of the smart electric heating device 100 using the first sensor 141 is described, the first processing unit 150 is placed on the upper plate 110 as it detects the contact of the power switch 131 . Power may be supplied to the induction heater 121 for heating the cooking vessel. In this embodiment, power supply and power supply may be expressed differently. The power supply is supplied for on/off of the entire smart electric heating device 100 , and the power supply may include electric energy supplied to heat a heating element placed on the smart electric heating device 100 .

As power is supplied to the induction heater 121 , the first processing unit 150 includes a plurality of first portions disposed in each of the spaces of the plurality of partition walls divided along the outer side of the induction heater 121 under the upper plate 110 . The sensor (141 of FIG. 3A: 141_1,141_2, ..., 141_N) may collect the detection result of the amount of light passing through the upper plate 110 .

When there is boiled food on the top plate 110 around the first sensor 141 , the top plate 110 around the first sensor 141 is contaminated, light is weakly transmitted, and the first sensor 141 . ) may receive a small amount of transmitted light, thus increasing the resistance value. In addition, when there is no boiled food on the top plate 110 around the first sensor 141 , the top plate 110 around the first sensor 141 is in a clean state, which is brighter than when boiled food is present. This is strongly transmitted, and the first sensor 141 receives a large amount of transmitted light, so that the resistance value may decrease.

Accordingly, the first processing unit 150 may determine whether the liquid contained in the cooking container overflows based on the light amount detection result collected from the first sensor 141 , and determine whether to supply power to the induction heater 121 .

In this embodiment, the first processing unit 150 may determine that the food has boiled over from the cooking container when the light amount detection result collected from the first sensor 141 is less than a preset light amount reference value (eg, 30 LUX). have.

Also, when the light amount detection result collected from the first sensor 141 is equal to or greater than a preset light amount reference value, the first processing unit 150 may determine that the food does not boil over from the cooking container.

The first processing unit 150 determines that the liquid contained in the cooking container overflows according to the light quantity detection result is less than the preset light quantity reference value, and determines to cut off the power supply of the induction heater 121, or It may be decided to adjust the power supply to make the intensity of induction heating less than present.

Next, when the safe cooking execution of the smart electric heating device 100 using the second sensor 142 is described, the first processing unit 150 detects the contact of the power switch 131 , and the Power may be supplied to the induction heater 121 for heating the placed cooking vessel.

As power is supplied to the induction heater 121 , the first processing unit 150 includes a plurality of second portions disposed in spaces of a plurality of partition walls divided along the outside of the induction heater 121 under the upper plate 110 , respectively. The reflected light reflected by the sensor (142: 142_1, 142_2, ..., 142_N of FIG. 4A ) is reflected from the upper plate 110 and returned may be collected as a light amount detection result.

In this embodiment, the second sensor 142 may include a light emitting unit (LED, 142a) for irradiating irradiation light and a light receiving unit (photodetector, 142b) for receiving reflected light.

When there is boiled food on the top plate 110 around the second sensor 142, that is, when the top plate 110 is contaminated, the irradiated light emitted from the light emitting unit 142a is refracted and scattered, and the light receiving unit 142b. The reflected light received from may be reduced. In other words, when boiled food is present on the top plate 110 , the irradiated light irradiated from the light emitting unit 142a is reflected from the boiled food existing on the top plate 110 after passing through the top plate 110 , and the light receiving unit The reflected light received at 142b may be reduced.

However, when there is no boiled food on the top plate 110 around the second sensor 142, that is, when the top plate 110 is clean, the irradiated light irradiated from the light emitting part 142a is reflected through the top plate 110, The reflected light received by the light receiving unit 142b may increase.

Accordingly, the first processing unit 150 determines whether or not the liquid contained in the cooking container overflows based on the light amount detection result collected from the light receiving unit 142b of the second sensor 142, and whether the induction heater 121 is supplied with power. can be decided

In this embodiment, when the light amount detection result collected from the light receiving unit 142b of the second sensor 142 is less than a preset light amount reference value (for example, 30 LUX), the first processing unit 150 boils food from the cooking container. can be judged to be overflowing.

In addition, when the light quantity detection result collected from the light receiving unit 142b of the second sensor 142 is equal to or greater than a preset light quantity reference value, the first processing unit 150 may determine that the food does not boil over from the cooking container.

After power is supplied to the induction heater 121 by the contact of the power switch 131, the second processing unit 160 detects a plurality of third sensors (143c, 143u, 143r, 143d, 143l in FIG. 5A). By receiving one signal, it is possible to analyze the position of the cooking vessel and provide an alarm function.

In this embodiment, the third sensor 143 may include a 3-1 th sensor 143c to a 3-5 th sensor 143l. The 3-1 th sensor 143c may be located in the center of the cooking zone 120 . The 3-2nd sensor 143u may be positioned to be spaced apart by a predetermined distance (eg, the radius of the induction heater 121) based on the 3-1st sensor 143c. The 3-3 sensor 143r may be positioned with respect to the 3-1 sensor 143c and 90 degrees apart from the 3-2 sensor 143u. The 3-4 th sensor 143u may be located 180 degrees apart from the 3-1 th sensor 143c with respect to the 3-2 th sensor 143u. The 3-5th sensor 143l may be positioned with respect to the 3-1st sensor 143c and 270 degrees apart from the 3-2th sensor 143u.

As the detection signals are collected from the 3-1 sensor 143c to the 3-5th sensor 143l, the second processing unit 160 detects that the cooking vessel of the first size is located at the center of the cooking zone 120 . can judge

As the detection signal is not collected from the 3-2 th sensor 143u to the 3-5 th sensor 143l and the detection signal is collected from the 3-1 th sensor 143c, the second processing unit 160 performs the first It may be determined that the cooking vessel of the second size smaller than the size is located at the center of the cooking zone 120 .

The second processing unit 160 collects a detection signal from the 3-1 th sensor 143c, and does not collect a detection signal from one or more of the 3-2 th sensor 143u to 3-5 th sensor 143l Accordingly, it may be determined that a part of the cooking vessel has deviated from the center of the cooking zone 120 . Here, the second processing unit 160 detects a portion of the cooking container when a detection signal is not collected from one or more of the 3-2 sensor 143u to the 3-5th sensor 143l regardless of the size of the pot. It may be determined that the center of the cooking zone 120 has been deviated.

The second processing unit 160 may generate an alarm for inducing a change in the position of the cooking vessel as a portion of the cooking vessel leaves the cooking zone 120 . Here, inducing a change in the position of the cooking vessel may include inducing the cooking vessel to be positioned at the center of the cooking zone 120 . Also, the alarm may be continuously generated until the cooking vessel is positioned at the center of the cooking zone 120 . Here, the alarm may include an audio signal and/or a vibration signal. To generate an alarm, the user interface 130 may further include a speaker (not shown) and/or a vibrating element (not shown).

After power is supplied to the induction heater 121 by the contact of the power switch 131 , the third processing unit 170 may perform a process of adjusting the induction heating range of the induction heater 121 .

With respect to the working coil 121a for generating induction heating in the induction heater 121, the third processing unit 170 includes a plurality of switching units (Fig. 6a) to form different electromagnetic lines for each length of the working coil 121a. 122, 123, and 124) are sequentially turned on, and currents of different electromagnetic lines can be measured.

In this embodiment, the induction heater 121 is composed of a working coil (121a in FIG. 6a) having a length from a start point to an end point, and the starting point of the working coil 121a is located in the center of the induction heater 121, and the walking It may be wound in a circle up to the end point of the coil (121a). Also, in this embodiment, the induction heater 121 may include a first switching unit (122 in FIG. 6A), a second switching unit (123 in FIG. 6A), and a third switching unit (124 in FIG. 6A). .

The third processing unit 170 outputs a first switching control signal for turning on the first switching unit 123 forming a first electromagnetic line from the starting point of the working coil 121a to a first length, and the first electromagnetic line It is possible to measure the first current for . The third processing unit 170 outputs a second switching control signal for turning on the second switching unit 124 forming a second electromagnetic line from the starting point of the working coil 121a to a second length longer than the first length. and a second current to the second electromagnetic line may be measured. The third processing unit 170 outputs a third switching control signal for turning on the third switching unit 125 forming a third electromagnetic line from the starting point of the working coil 121a to the ending point length longer than the second length, and , a third current to the third electromagnetic line may be measured.

The third processing unit 170 may determine the induction heating range of the working coil 121a based on the current measurement results of the first electromagnetic line, the second electromagnetic line, and the third electromagnetic line.

When the first electromagnetic line, the second electromagnetic line, and the third electromagnetic line are sequentially turned on to measure the current of the working coil 121a, the current of the working coil 121a corresponding to the place where the cooking vessel is located increases, and cooking Since the current of the working coil 121a corresponding to the place where the container is not located does not rise, the induction heating range corresponding to the size of the cooking container can be determined by measuring the current of the working coil 121a for each electromagnetic line.

The third processing unit 170 determines that it is a cooking vessel having a first size according to the largest first current among the measured first to third currents, and cuts the working coil 121a from the starting point to the first length. It can be determined by the range of induction heating.

The third processing unit 170 determines that it is a cooking vessel having a second size larger than the first size according to the second current being the largest among the measured first to third currents, and from the starting point to the second length. The working coil 121a may be determined as an induction heating range.

The third processing unit 170 determines that the cooking vessel has a third size larger than the second size according to the third current being the largest among the measured first to third currents, and a working coil from the start point to the end point. (121a) can be determined as the induction heating range.

The controller 180 may control the operation of the entire smart electric heating device 100 . The controller 180 determines whether there is boiled food from the cooking container using the detection signal received from the first sensor 141 and/or the second sensor 142, and there is boiled food from the cooking container. In this case, the power supply of the induction heater 121 may be determined to be cut off, or the induction heating intensity of the induction heater 121 may be controlled to adjust the power supply to be smaller than the current.

After supplying power to the induction heater 121 , the controller 180 receives the signals sensed by the plurality of third sensors 143 to analyze the position of the cooking vessel, and a portion of the cooking vessel is moved to the cooking zone 120 . ), an alarm can be generated to induce a change in the position of the cooking vessel.

After supplying power to the induction heater 121 , the controller 180 , a plurality of switching

units

123 and 124 configured to form different electromagnetic lines for each length of the working coil 121a constituting the induction heater 121 . , 125) to sequentially turn on, collect the current measurement results of each of the different electromagnetic lines, determine the size of the cooking vessel, and determine the induction heating range of the working coil 121a in response to the size of the cooking vessel can be controlled

3A and 3B are exemplary views illustrating a smart electric heating device that guarantees safe cooking according to an embodiment of the present invention. In the following description, descriptions of parts overlapping with those of FIGS. 1 and 2 will be omitted.

Referring to FIGS. 3A and 3B , the plurality of first sensors 141: 141_1,141_2, ..., 141_N is a space of a plurality of partition walls divided along the outside of the induction heater 121 under the upper plate 110, respectively. can be placed in

Referring to ( 301 ) of FIG. 3B , there is no boiled food on the top plate 110 around the first sensor 141 , and the top plate 110 around the first sensor 141 may be in a clean state. have. In this case, light is strongly transmitted through the upper plate 110 , and the first sensor 141 receives a large amount of transmitted light, thereby reducing the resistance value.

Referring to 302 of FIG. 3B , it is a case in which boiled food is present on the top plate 110 around the first sensor 141, and the top plate 110 around the first sensor 141 may be in a contaminated state. have. In this case, the light transmitted through the top plate 110 is transmitted weakly than when the top plate 110 is clean, and the first sensor 141 receives a small amount of transmitted light, so that the resistance value may increase.

3A and 3B , the first processing unit 150 determines that the food has boiled out of the cooking container when the light amount detection result collected from the first sensor 141 is less than a preset light amount reference value (eg, 30 LUX). can do. Also, when the light amount detection result collected from the first sensor 141 is equal to or greater than a preset light amount reference value, the first processing unit 150 may determine that the food does not boil over from the cooking container.

4A and 4B are exemplary views illustrating a smart electric heating device that ensures safe cooking according to another embodiment of the present invention. In the following description, descriptions of parts overlapping with those of FIGS. 1 to 3 will be omitted.

4A and 4B , the plurality of second sensors 142: 142_1, 142_2, ..., 142_N have a plurality of partition wall structures divided along the outside of the induction heater 121 under the upper plate 110, respectively. can be placed in In this embodiment, the second sensor 142 may include a light emitting unit (LED, 142a) for irradiating irradiation light and a light receiving unit (photodetector, 142b) for receiving reflected light.

Referring to 401 of FIG. 4B , there is no boiled food on the top plate 110 around the second sensor 142, and the top plate 110 around the second sensor 142 may be in a clean state. have. In this case, the irradiated light irradiated from the light emitting unit 142a may be reflected through the upper plate 110 , and the reflected light received from the light receiving unit 142b may increase.

Referring to 402 of FIG. 4B , it is a case in which boiled food is present on the top plate 110 around the second sensor 142, and the top plate 110 around the second sensor 142 may be in a contaminated state. have. In this case, the light irradiated from the light emitting unit 142a is refracted and scattered through the boiled food on the top plate 110 , and the reflected light received by the light receiving unit 142b may be reduced.

3A and 3B , the first processing unit 150 receives food from the cooking container when the light quantity detection result collected from the light receiving unit 142b of the second sensor 142 is less than a preset light quantity reference value (eg, 30 LUX). It can be judged that this boils over. In addition, when the light quantity detection result collected from the light receiving unit 142b of the second sensor 142 is equal to or greater than a preset light quantity reference value, the first processing unit 150 may determine that the food does not boil over from the cooking container.

5A and 5B are exemplary views illustrating a smart electric heating device having a position alarm function of a cooking vessel according to an embodiment of the present invention. In the following description, descriptions of parts overlapping with those of FIGS. 1 to 4 will be omitted.

Referring to FIG. 5A , between the lower portion of the upper plate 110 and the upper portion of the induction heater 121, a plurality of

third sensors

143c, 143u, 143r, 143d, 143l as a metal detection sensor, or an ultrasonic sensor/infrared sensor It shows that it is available.

The third sensor 143 may include a 3-1 th sensor 143c to a 3-5 th sensor 143l. The 3-1 th sensor 143c may be located in the center of the cooking zone 120 . The 3-2nd sensor 143u may be positioned to be spaced apart by a predetermined distance (eg, the radius of the induction heater 121) based on the 3-1st sensor 143c. The 3-3 sensor 143r may be positioned with respect to the 3-1 sensor 143c and 90 degrees apart from the 3-2 sensor 143u. The 3-4 th sensor 143u may be located 180 degrees apart from the 3-1 th sensor 143c with respect to the 3-2 th sensor 143u. The 3-5th sensor 143l may be positioned with respect to the 3-1st sensor 143c and 270 degrees apart from the 3-2th sensor 143u.

Referring to 501 of FIG. 5B , after power is supplied to the induction heater 121 by the contact of the power switch 131 , the second processing unit 160 performs the 3-2 sensor 143u to the third As the detection signal is not collected from the -5 sensor 143l and the detection signal is collected from the 3-1 sensor 143c, a cooking vessel of a second size smaller than the first size is placed in the center of the cooking zone 120. location can be determined.

Referring to 502 of FIG. 5B , the second processing unit 160 detects a signal from the 3-1 sensor 143c after power is supplied to the induction heater 121 by the contact of the power switch 131 . is collected, and it is determined that a part of the cooking vessel has deviated from the center of the cooking zone 120 as the detection signals from the 3-4th sensor 143d and the 3-5th sensor 143l are not collected, and cooking is performed. An alarm that induces a change in the position of the container can be generated.

Referring to ( 503 ) of FIG. 5B , the second processing unit 160 is configured to supply power to the induction heater 121 by the contact of the power switch 131 , and then, the third-first sensor 143c to the third -5 As the detection signal is collected from the sensor 143l, it may be determined that the cooking vessel of the first size is located at the center of the cooking zone 120 .

Referring to 504 of FIG. 5B , the second processing unit 160 detects a signal from the third-first sensor 143c after power is supplied to the induction heater 121 by the contact of the power switch 131 . is collected, and it is determined that a part of the cooking vessel has deviated from the center of the cooking zone 120 as the detection signals from the 3-4th sensor 143d and the 3-5th sensor 143l are not collected, and cooking is performed. An alarm that induces a change in the position of the container can be generated.

In this embodiment, the second processing unit 160, regardless of the size of the pot, when the detection signal is not collected from one or more of the 3-2 sensor (143u) to the 3-5th sensor (143l), the cooking vessel It may be determined that a part of the cooking zone 120 has deviated from the center of the cooking zone 120 .

6a and 6b are exemplary views illustrating a smart electric heating device for controlling the induction heating range of the induction heater according to an embodiment of the present invention. In the following description, descriptions of parts overlapping with those of FIGS. 1 to 5 will be omitted.

6A and 6B, the induction heater 121 is composed of a working coil 121a having a length from a start point to an end point, and the starting point of the working coil 121a is located in the center of the induction heater 121. can do. Also, in this embodiment, the induction heater 121 may include a first switching unit 123 , a second switching unit 124 , and a third switching unit 125 .

The first switching unit 123 may form a first electromagnetic line from a starting point of the working coil 121a to a first length when turned on. The first switching unit 123 may include a 1-1 tap 123a and a 1-2 tap 123b. The 1-1 tab 123a may be connected to the electromagnetic line (+) from the start point of the working coil 121a to the first length (+), and the 1-2 tab 123b may be connected to the electromagnetic line (-). When a first switching control signal (turn-on signal) electrically connecting the 1-1 tab 123a and the 1-2 tab 123b is input from the third processing unit 170 , a first electromagnetic line is formed. can

When the second switching unit 124 is turned on, the first electromagnetic line may be formed from the starting point of the working coil 121a to a second length longer than the first length. The second switching unit 124 may include a 2-1 th tab 124a and a 2-2 th tab 124b. The 2-1 tab 124a is connected to an electromagnetic line (+) from the starting point of the working coil 121a to a second length longer than the first length, and the 2-2 tab 124b is an electromagnetic line (−). ) can be connected to When a second switching control signal (turn-on signal) electrically connecting the 2-1 th tab 124a and the 2-2 th tab 124b is input from the third processing unit 170 , a second electromagnetic line may be formed. can

When the third switching unit 125 is turned on, the first electromagnetic line may be formed up to an end point length longer than the second length of the working coil 121a. The third switching unit 125 may include a 3-1 th tab 125a and a 3-2 th tab 125b. The 3-1 tab 125a is connected to the electromagnetic line (+) from the starting point of the working coil 121a to the ending point length longer than the second length, and the 3-2 tab 125b is the electromagnetic line (-) can be connected to When a third switching control signal (turn-on signal) electrically connecting the 3-1 th tab 125a and the 3-2 th tab 125b is input from the third processing unit 170 , a third electromagnetic line is formed. can

After power is supplied to the induction heater 121 by the contact of the power switch 131 , the third processing unit 170 forms a first electromagnetic line from the starting point of the working coil 121a to the first length. A first switching control signal for turning on the switching unit 123 may be output, and a first current with respect to the first electromagnetic line may be measured. After the power is supplied to the induction heater 121 by the contact of the power switch 131 , the third processing unit 170 is a second electromagnetic field from the starting point of the working coil 121a to a second length longer than the first length. A second switching control signal for turning on the second switching unit 124 forming a line may be output, and a second current with respect to the second electromagnetic line may be measured. After power is supplied to the induction heater 121 by the contact of the power switch 131, the third processing unit 170 is a third electromagnetic line from the starting point of the working coil 121a to the ending point length longer than the second length. It is possible to output a third switching control signal for turning on the third switching unit 125 forming the , and measure a third current for the third electromagnetic line.

The third processing unit 170 determines that the cooking vessel has a first size (small size) according to the largest first current among the measured first to third currents, and a working coil from the starting point to the first length. (121a) can be determined as the induction heating range. The third processing unit 170 determines that it is a cooking vessel having a second size (intermediate size) larger than the first size according to the second current being the largest among the measured first to third currents, and starting from the starting point. Up to two lengths of the working coil (121a) can be determined as an induction heating range. The third processing unit 170 determines that the cooking vessel has a third size (larger size) larger than the second size according to the third current being the largest among the measured first to third currents, and starting from the starting point to the ending point Up to the working coil (121a) can be determined as an induction heating range.

7 is an exemplary diagram illustrating the structure of an induction heater according to an embodiment of the present invention. In the following description, descriptions of parts overlapping with those of FIGS. 1 to 6 will be omitted.

Referring to FIG. 7 , in the induction heater 121 , a metal plate 702 may be disposed under a silicon upper plate 701 , and a temperature sensor 703 may be disposed on the metal plate 702 . A heater 704 may be disposed under the metal plate 702 , and a heat shield plate 705 may be disposed under the heater 704 . A lower silicon plate 706 may be disposed under the heat shield plate 705 . A PCB 707 may be connected to the metal plate 702 , the heater 704 , and the heat shield plate 705 , and a battery 708 may be connected to the PCB 707 .

When the heater 704 is heated using the battery 708 , the entire area of the metal plate 702 is heated by the heater 704 , thereby increasing heat conduction to the cooking vessel and preventing the heat from quickly cooling. It is possible to maintain a constant temperature by using the temperature sensor 703 attached close to the metal plate 702 in the PCB 707 . The heat shield plate 705 may be configured so that the heat heated by the heater 704 is not transferred to the lower part of the device.

8 is a block diagram schematically illustrating the configuration of a smart electric heating device according to another embodiment of the present invention. In the following description, descriptions of parts overlapping with those of FIGS. 1 to 7 will be omitted.

Referring to FIG. 8 , the smart electric heating device 100 according to another embodiment may include a processor 191 and a memory 192 . In this embodiment, the processor 191 includes the induction heater 121 of FIG. 2 , the user interface 130 , the sensor unit 140 , the first processing unit 150 , the second processing unit 160 , and the third processing unit 170 . and functions performed by the controller 180 .

The processor 191 may control the operation of the entire smart electric heating device 100 . Here, the 'processor' may refer to a data processing device embedded in hardware having a physically structured circuit to perform a function expressed by, for example, a code or an instruction included in a program. As an example of the data processing apparatus embedded in the hardware as described above, a microprocessor, a central processing unit (CPU), a processor core, a multiprocessor, an application-specific integrated (ASIC) circuit) and a processing device such as a field programmable gate array (FPGA), but the scope of the present invention is not limited thereto.

The memory 192 may be operatively connected to the processor 191 and store at least one code in association with an operation performed by the processor 191 .

In addition, the memory 192 may perform a function of temporarily or permanently storing data processed by the processor 191 . Here, the memory 192 may include magnetic storage media or flash storage media, but the scope of the present invention is not limited thereto. Such memory 192 may include internal memory and/or external memory, and may include volatile memory such as DRAM, SRAM, or SDRAM, one time programmable ROM (OTPROM), PROM, EPROM, EEPROM, mask ROM, flash ROM, NAND flash memory, or non-volatile memory such as NOR flash memory, SSD, compact flash (CF) card, SD card, Micro-SD card, Mini-SD card, Xd card, or flash drive such as a memory stick , or a storage device such as HDD.

9 is a flowchart for explaining a method of operating a smart electric heating device according to an embodiment of the present invention. In the following description, descriptions of parts overlapping with those of FIGS. 1 to 8 will be omitted. Through the operating method of the smart electric heating device 100 disclosed in FIG. 9, when food overflows and overheats and burns while cooking using a cooking container on the smart electric heating device, the smart electric heating device blocks the risk of odor and/or fire. It is possible to ensure safe cooking of the electric heating device 100 . In this embodiment, the operation of the smart electric heating device 100 will be described assuming that it is performed by the processor 191 with the help of the surrounding components.

Referring to FIG. 9 , in step S910 , the processor 191 may supply power to the induction heater 121 by detecting the contact of the power switch 131 . Here, supplying power to the induction heater 121 may include heating food in the cooking container placed in the cooking zone.

In step S920 , the processor 191 may collect the detection result of the amount of light passing through the upper plate 110 from the plurality of first sensors 141: 141_1,141_2, ..., 141_N. When there is no boiled food on the top plate 110 around the first sensor 141 , the top plate 110 around the first sensor 141 may be in a clean state. In this case, light is strongly transmitted through the upper plate 110 , and the first sensor 141 receives a large amount of transmitted light, thereby reducing the resistance value. Also, when boiled food is present on the top plate 110 around the first sensor 141 , the top plate 110 around the first sensor 141 may be in a contaminated state. In this case, the light transmitted through the top plate 110 is transmitted weakly than when the top plate 110 is clean due to the boiled food, and the first sensor 141 receives a small amount of transmitted light to increase the resistance. can

In step S930 , the processor 191 may determine whether the light amount detection result is less than a light amount reference value (eg, 30 LUX).

In step S940 , the processor 191 may determine that the liquid contained in the cooking container overflows as the light amount detection result is less than a preset light amount reference value.

In step S950 , the processor 191 may determine that the liquid contained in the cooking container does not overflow as the light amount detection result is equal to or greater than the preset light amount reference value.

In step S960, when the processor 191 determines that the liquid contained in the cooking container overflows, the power supply of the induction heater 121 is cut off, or the power supply is reduced so that the induction heating intensity of the induction heater 121 is smaller than the present. Can be adjusted.

In an optional embodiment, the processor 191 determines that the number determined to be less than the reference light amount among the plurality of light amount detection results collected from the plurality of first sensors 141: 141_1,141_2, ..., 141_N is a preset number (eg, For example, if it is more than 5), it is determined that the liquid contained in the cooking container overflows, and the power supply of the induction heater 121 is cut off, or the power supply is adjusted so that the induction heating intensity of the induction heater 121 is smaller than the present. can

10 is a flowchart for explaining a method of operating a smart electric heating device according to another embodiment of the present invention. In the following description, descriptions of parts overlapping with those of FIGS. 1 to 9 will be omitted. Through the operating method of the smart electric heating device 100 disclosed in FIG. 10, when food overflows and overheats and burns while cooking using a cooking container on the smart electric heating device, the smart electric heating device blocks the risk of odor and/or fire. It is possible to ensure safe cooking of the electric heating device 100 .

Referring to FIG. 10 , in step S1010 , the processor 1101 may supply power to the induction heater 121 by detecting the contact of the power switch 131 . Here, supplying power to the induction heater 121 may include heating food in the cooking container placed in the cooking zone.

In step S1020 , the processor 1101 may collect the light amount detection result from the plurality of second sensors 142: 142_1, 142_2, ..., 142_N. In this embodiment, the second sensor 142 may include a light emitting unit (LED, 142a) for irradiating irradiation light and a light receiving unit (photodetector, 142b) for receiving reflected light. When there is no boiled food on the top plate 110 around the second sensor 142 , the top plate 110 around the second sensor 142 may be in a clean state. In this case, the irradiated light irradiated from the light emitting unit 142a may be reflected through the upper plate 110 , and the reflected light received from the light receiving unit 142b may increase. Also, when boiled food is present on the top plate 110 around the second sensor 142 , the top plate 110 around the second sensor 142 may be in a contaminated state. In this case, the irradiated light irradiated from the light emitting unit 142a may be refracted and scattered through the boiled food present on the upper plate 110 , and the reflected light received by the light receiving unit 142b may be reduced.

In step S1030 , the processor 1101 may determine whether the light amount detection result is less than a light amount reference value (eg, 30 LUX).

In step S1040 , the processor 1101 may determine that the liquid contained in the cooking container overflows as the light amount detection result is less than a preset light amount reference value.

In step S1050 , the processor 1101 may determine that the liquid contained in the cooking container does not overflow as the light amount detection result is equal to or greater than the preset light amount reference value.

In step S1060, when the processor 1101 determines that the liquid contained in the cooking container overflows, the power supply to the induction heater 121 is cut off, or the induction heating intensity of the induction heater 121 is reduced to smaller than the current power supply. Can be adjusted.

In an optional embodiment, the processor 1101 determines that the light amount is less than the reference light amount among the plurality of light amount detection results collected from the plurality of light receiving units 142b included in the plurality of second sensors 142: 142_1, 142_2, ..., 142_N. If the number is greater than or equal to a preset number (eg, 5), it is determined that the liquid contained in the cooking container overflows, and the power supply of the induction heater 121 is cut off, or the induction heating intensity of the induction heater 121 is increased. The power supply can be adjusted to be smaller than it is today.

11 is a flowchart for explaining a method of operating a smart electric heating device according to another embodiment of the present invention. In the following description, descriptions of parts overlapping with those of FIGS. 1 to 10 will be omitted. Through the operation method of the smart electric heating device 100 disclosed in FIG. 11 , it is possible to prevent the case where the heating efficiency is reduced or the food is not cooked normally through the alarm of the location of the cooking vessel placed on the induction heater 121 .

Referring to FIG. 11 , in step S1110 , the processor 191 may supply power to the induction heater 121 according to detecting the contact of the power switch 131 . Here, supplying power to the induction heater 121 may include heating food in the cooking container placed in the cooking zone.

In step S1120 , the processor 191 may collect detection signals from the 3-1 th sensor 143c to the 3-5 th sensor 143l in a state in which power is supplied to the induction heater 121 . In this embodiment, the 3 - 1 sensor 143c may be located in the center of the cooking zone 120 . The 3-2nd sensor 143u may be positioned to be spaced apart by a predetermined distance (eg, the radius of the induction heater 121) based on the 3-1st sensor 143c. The 3-3 sensor 143r may be positioned with respect to the 3-1 sensor 143c and 90 degrees apart from the 3-2 sensor 143u. The 3-4 th sensor 143u may be located 180 degrees apart from the 3-1 th sensor 143c with respect to the 3-2 th sensor 143u. The 3-5th sensor 143l may be positioned with respect to the 3-1st sensor 143c and 270 degrees apart from the 3-2th sensor 143u. In addition, the position information of the 3-1 sensor 143c to the 3-5th sensor 143l is stored in the memory 192, and the processor 191 accesses the memory 192 to access the 3-1 sensor ( 143c) to 3-5th sensors 143l may be recognized.

In step S1130 , the processor 191 collects the detection signals from the 3-1 th sensor 143c to the 3-5 th sensor 143l, so that the cooking vessel of the first size is located at the center of the cooking zone 120 . It can be judged that

In step S1140, the processor 191 does not collect the detection signal from the 3-2 sensor 143u to the 3-5th sensor 143l, and as the detection signal is collected from the 3-1 sensor 143c, It may be determined that the cooking vessel of the second size smaller than the first size is located at the center of the cooking zone 120 .

In step S1150, the processor 191 collects a detection signal from the 3-1 th sensor 143c, and collects the detection signal from one or more of the 3-2 th sensor 143u to the 3-5 th sensor 143l If not, it may be determined that a part of the cooking container is out of the center of the cooking zone 120 .

In step S1160 , the processor 191 may generate an alarm for inducing a change in the position of the cooking vessel when a part of the cooking vessel deviates from the center of the cooking zone 120 . In this embodiment, the alarm may be continuously generated until the position of the cooking vessel is placed at the center of the cooking zone 120 . After the position of the cooking vessel is changed, the processor 191 collects detection signals from the 3-1 th sensor 143c to the 3-5 th sensor 143l to determine whether the position of the cooking vessel is at the center of the cooking zone 120 . can be re-evaluated.

12 is a flowchart for explaining a method of operating a smart electric heating device according to another embodiment of the present invention. In the following description, descriptions of parts overlapping with those of FIGS. 1 to 11 will be omitted. Through the operating method of the smart electric heating device 100 disclosed in FIG. 12 , energy efficiency can be maximized by controlling the heating range according to the size of the cooking vessel placed on the induction heater 121 .

Referring to FIG. 12 , in step S1201 , the processor 191 may supply power to the induction heater 121 according to detecting the contact of the power switch 131 . Here, supplying power to the induction heater 121 may include heating food in the cooking container placed in the cooking zone.

In step S1203, the processor 191 turns the first switching unit 123 forming a first electromagnetic line from the starting point of the working coil 121a to the first length in a state in which power is supplied to the induction heater 121. A first switching control signal for turning on may be output, and a first current with respect to the first electromagnetic line may be measured.

In step S1205, the processor 191, in a state in which power is supplied to the induction heater 121, a second switching to form a second electromagnetic line from the starting point of the working coil 121a to a second length longer than the first length A second switching control signal for turning on the unit 124 may be output, and a second current for the second electromagnetic line may be measured.

In step S1207, the processor 191 is a third switching unit that forms a third electromagnetic line from the starting point of the working coil 121a to the ending point length longer than the second length in a state in which power is supplied to the induction heater 121 A third switching control signal for turning on 125 may be output, and a third current for the third electromagnetic line may be measured.

In step S1209 , the processor 191 may determine whether the first current is the largest among the measured first to third currents. When the first electromagnetic line, the second electromagnetic line, and the third electromagnetic line are sequentially turned on to measure the current of the working coil 121a, the current of the working coil 121a corresponding to the place where the cooking vessel is located increases, and cooking Since the current of the working coil 121a corresponding to the place where the container is not located does not rise, the induction heating range corresponding to the size of the cooking container can be determined by measuring the current of the working coil 121a for each electromagnetic line.

In step S1211 , when the processor 191 determines that the first current is the largest among the first to third currents, the processor 191 may determine the size of the cooking vessel placed on the induction heater 121 as the first size.

In step S1213 , the processor 191 may determine the working coil 121a from the starting point to the first length as an induction heating range.

In step S1215 , the processor 191 may supply power to the working coil 121a from the starting point to the first length.

In step S1217 , the processor 191 may determine whether the second current is the largest among the measured first to third currents.

In step S1219, when the processor 191 determines that the second current among the first to third currents is the largest, the size of the cooking vessel placed on the induction heater 121 is determined to be a second size larger than the first size. can

In step S1221 , the processor 191 may determine the working coil 121a from the starting point to the second length as an induction heating range.

In step S1223 , the processor 191 may supply power to the working coil 121a from the starting point to the second length.

In step S1225 , the processor 191 may determine whether a third current among the measured first to third currents is the largest.

In step S1227, when the processor 191 determines that the third current among the first to third currents is the largest, the size of the cooking vessel placed on the induction heater 121 is determined to be a third size larger than the second size. can

In step S1229, the processor 191 may determine the working coil (121a) from the start point to the end point as an induction heating range.

In step S1231, the processor 191 may supply power to the working coil 121a from the start point to the end point.

The above-described embodiment according to the present invention may be implemented in the form of a computer program that can be executed through various components on a computer, and such a computer program may be recorded in a computer-readable medium. In this case, the medium includes a hard disk, a magnetic medium such as a floppy disk and a magnetic tape, an optical recording medium such as CD-ROM and DVD, a magneto-optical medium such as a floppy disk, and a ROM. , RAM, flash memory, and the like, and hardware devices specially configured to store and execute program instructions.

Meanwhile, the computer program may be specially designed and configured for the present invention, or may be known and used by those skilled in the computer software field. Examples of the computer program may include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like.

In the specification of the present invention (especially in the claims), the use of the term "above" and similar referential terms may be used in both the singular and the plural. In addition, when a range is described in the present invention, each individual value constituting the range is described in the detailed description of the invention as including the invention to which individual values belonging to the range are applied (unless there is a description to the contrary). same as

The steps constituting the method according to the present invention may be performed in an appropriate order unless the order is explicitly stated or there is no description to the contrary. The present invention is not necessarily limited to the order in which the steps are described. The use of all examples or exemplary terms (eg, etc.) in the present invention is merely for the purpose of describing the present invention in detail, and the scope of the present invention is limited by the examples or exemplary terms unless limited by the claims. it is not going to be In addition, those skilled in the art will appreciate that various modifications, combinations, and changes may be made in accordance with design conditions and factors within the scope of the appended claims or their equivalents.

Therefore, the spirit of the present invention should not be limited to the above-described embodiments, and the scope of the spirit of the present invention is not limited to the scope of the scope of the present invention. will be said to belong to

Claims

A method of operating a smart electric heating appliance performed by a processor of the smart electric heating appliance, comprising:

supplying power to a heater for heating a cooking vessel placed on an upper plate of the smart electric heating device according to detecting a contact of a heating switch provided in the smart electric heating device;

collecting a result of detecting the amount of light passing through the upper panel from a plurality of first sensors provided under the upper panel as power is supplied to the heater; and

Comprising the step of determining whether the liquid contained in the cooking vessel overflows based on the light amount detection result, and determining whether to supply power to the heater,

How Smart Electric Heating Appliances Work.
The method of claim 1,

The step of collecting the detection result of the amount of light passing through the upper plate,

The space of the plurality of barrier rib structures is divided along the outer side of the heater under the upper plate, and collecting the result of detecting the amount of light passing through the upper plate from the first sensor disposed in each of the spaces of the plurality of barrier rib structures doing,

How Smart Electric Heating Appliances Work.
The method of claim 1,

The step of determining whether to supply power to the heater,

Determining that the liquid contained in the cooking container overflows according to the light amount detection result being less than the reference value, and determining to cut off the power supply to the heater, or to adjust the power supply so that the heating intensity of the heater is smaller than the current comprising steps,

How Smart Electric Heating Appliances Work.
The method of claim 1,

The step of collecting the detection result of the amount of light passing through the upper plate,

The space of a plurality of barrier rib structures is divided along the outside of the heater in the lower part of the upper plate, and the irradiated light irradiated by a second sensor disposed in each of the spaces of the plurality of barrier rib structures is reflected from the upper plate and returned The reflected light is sensed comprising the step of collecting the result;

How Smart Electric Heating Appliances Work.
The method of claim 1,

After determining granting power to the heater,

collecting detection signals from a plurality of third sensors provided between the lower part of the upper plate and the upper part of the heater;

analyzing the position of the cooking vessel based on the detection signals collected from the plurality of third sensors, and determining whether a portion of the cooking vessel deviated from the cooking area in which the heater is located; and

The method further comprising the step of generating an alarm inducing a change in the position of the cooking vessel as a part of the cooking vessel leaves the cooking zone;

How Smart Electric Heating Appliances Work.
6. The method of claim 5,

Collecting detection signals from the plurality of third sensors includes:

A 3-1 sensor located in the center of the cooking zone, a 3-2 sensor spaced apart by a predetermined distance based on the 3-1 sensor, and the 3 - A 3-3 sensor positioned 90 degrees apart from the second sensor, a 3-4 sensor positioned 180 degrees apart from the 3-2 sensor with reference to the 3-1 sensor, and the 3-1 sensor Comprising the step of collecting a detection signal from a 3-5th sensor positioned 270 degrees apart from the 3-2 sensor with reference to ,

How Smart Electric Heating Appliances Work.
7. The method of claim 6,

The step of determining whether the cooking area is out of the

determining that the cooking vessel of the first size is located at the center of the cooking zone as the detection signals are collected from the 3-1 sensor to the 3-5th sensor;

As the detection signal is not collected from the 3-2 sensor to the 3-5th sensor and the detection signal is collected from the 3-1 sensor, the cooking vessel of a second size smaller than the first size is cooked determining that it is located at the center of the zone; and

As a detection signal is collected from the 3-1 sensor and a detection signal is not collected from at least one of the 3-2 sensor to the 3-5th sensor, a portion of the cooking container is moved to the center of the cooking zone. Including the step of judging that out of

How Smart Electric Heating Appliances Work.
The method of claim 1,

After determining granting power to the heater,

sequentially turning on a plurality of switching units for forming different electromagnetic lines for each length of the working coil with respect to the working coil for generating heating in the heater, and measuring the current of each of the different electromagnetic lines; and

Further comprising the step of determining a heating range of the working coil based on the current measurement result of each of the different electromagnetic lines,

How Smart Electric Heating Appliances Work.
9. The method of claim 8,

Measuring the current comprises:

Outputs a first switching control signal for turning on a first switching unit forming a first electromagnetic line from a starting point of the working coil wound in a circular fashion toward the outside from the center of the heater to a first length, and the first electromagnetic line measuring a first current for

Outputs a second switching control signal for turning on a second switching unit forming a second electromagnetic line from the starting point of the working coil to a second length longer than the first length, and a second current to the second electromagnetic line measuring; and

Outputs a third switching control signal for turning on a third switching unit forming a third electromagnetic line from the start point of the working coil to an end point length longer than the second length, and a third current to the third electromagnetic line comprising the step of measuring,

How Smart Electric Heating Appliances Work.
10. The method of claim 9,

The step of determining the heating range of the working coil,

determining a cooking container having a first size according to the first current being the largest among the first to third currents, and determining a working coil from the starting point to a first length as a heating range;

As the second current is the largest among the first to third currents, it is determined that the cooking vessel has a second size larger than the first size, and the working coil from the starting point to the second length is heated. determining as; and

As the third current is the largest among the first to third currents, it is determined as a cooking vessel having a third size larger than the second size, and a working coil from the start point to the end point is determined as a heating range comprising the step of

How Smart Electric Heating Appliances Work.
A smart electric heating appliance comprising:

processor; and

a memory operatively coupled to the processor and storing at least one code executed by the processor;

When the memory is executed through the processor, when the processor detects a contact of a heating switch provided in the smart electric heating device, power is supplied to the heater for heating the cooking vessel placed on the upper plate of the smart electric heating device,

As power is supplied to the heater, a result of detecting the amount of light passing through the upper plate is collected from a plurality of first sensors provided under the upper plate,

Determining whether the liquid contained in the cooking vessel overflows based on the light amount detection result, and storing a code causing the determination of whether to supply power to the heater,

The operating device of a smart electric heating appliance.
12. The method of claim 11,

The memory causes the processor to

When the result of detecting the amount of light passing through the upper plate is collected, the space of the plurality of barrier rib structures is divided along the outer side of the heater under the upper plate, and the space of the plurality of barrier rib structures is separated from the first sensor disposed in each of the spaces of the plurality of barrier rib structures. storing a code causing to collect a result of detecting the amount of light passing through the upper plate,

The operating device of a smart electric heating appliance.
12. The method of claim 11,

The memory causes the processor to

When determining whether to supply power to the heater, it is determined that the liquid contained in the cooking container overflowed according to the light amount detection result being less than the reference value, and the power supply to the heater is cut off, or the heating intensity of the heater is currently storing the code that causes the decision to adjust the power supply to be smaller than,

The operating device of a smart electric heating appliance.
14. The method of claim 13,

The memory causes the processor to

When the result of detecting the amount of light passing through the upper plate is collected, the space of the plurality of barrier rib structures is divided along the outside of the heater under the upper plate, and the second sensor disposed in each of the spaces of the plurality of barrier rib structures is irradiated further storing a code causing the light to be reflected from the upper plate and returned as a result of detecting the amount of light,

The operating device of a smart electric heating appliance.
12. The method of claim 11,

The memory causes the processor to

After determining permission to supply power to the heater, a detection signal is collected from a plurality of third sensors provided between the lower part of the upper plate and the upper part of the heater,

By analyzing the position of the cooking vessel based on the detection signals collected from the plurality of third sensors, it is determined whether a part of the cooking vessel has deviated from the cooking area in which the heater is located,

further storing a code for causing an alarm to be generated for inducing a change in the position of the cooking vessel when a part of the cooking vessel leaves the cooking zone;

The operating device of a smart electric heating appliance.
16. The method of claim 15,

The memory causes the processor to

When collecting the detection signals from the plurality of third sensors, a 3-1 sensor located in the center of the cooking zone and a 3-2 sensor spaced apart from the 3-1 sensor by a predetermined distance; A 3-3 sensor positioned 90 degrees apart from the 3-2 sensor with the 3-1 sensor as a reference, and 180 degrees apart from the 3-2 sensor with the 3-1 sensor as a reference, Storing a code causing to collect a detection signal from a 3-4th sensor located and a 3-5th sensor located with reference to the 3-1 sensor and 270 degrees apart from the 3-2th sensor,

The operating device of a smart electric heating appliance.
17. The method of claim 16,

The memory causes the processor to

When it is determined whether the cooking zone is out of the cooking zone, it is determined that the cooking container of the first size is located at the center of the cooking zone as detection signals are collected from the 3-1 sensor to the 3-5th sensor. do,

As the detection signal is not collected from the 3-2 sensor to the 3-5th sensor and the detection signal is collected from the 3-1 sensor, the cooking vessel of a second size smaller than the first size is cooked. Judging that it is located in the center of the district,

As a detection signal is collected from the 3-1 sensor and a detection signal is not collected from at least one of the 3-2 sensor to the 3-5th sensor, a portion of the cooking container is moved to the center of the cooking zone. to store the code that causes it to determine that it is out of

The operating device of a smart electric heating appliance.
12. The method of claim 11,

The memory causes the processor to

After determining permission to supply power to the heater, a plurality of switching units for forming different electromagnetic lines for each length of the working coil with respect to the working coil for generating heating in the heater are sequentially turned on, and the different Measure the current in each of the electromagnetic lines,

further storing a code causing the determination of a heating range of the working coil based on a current measurement result of each of the different electromagnetic lines;

The operating device of a smart electric heating appliance.
19. The method of claim 18,

The memory causes the processor to

When measuring the current, output a first switching control signal for turning on a first switching unit forming a first electromagnetic line from the starting point of the working coil wound in a circular fashion toward the outside from the center of the heater to a first length and measuring a first current for the first electromagnetic line,

Outputs a second switching control signal for turning on a second switching unit forming a second electromagnetic line from the starting point of the working coil to a second length longer than the first length, and a second current to the second electromagnetic line to measure,

Outputs a third switching control signal for turning on a third switching unit forming a third electromagnetic line from the start point of the working coil to an end point length longer than the second length, and a third current to the third electromagnetic line comprising a code that causes to measure;

The operating device of a smart electric heating appliance.
20. The method of claim 19,

The memory causes the processor to

When determining the heating range of the working coil, as the first current is the largest among the first to third currents, it is determined as a cooking vessel having a first size, and walking from the starting point to a first length Determine the coil as the heating range,

As the second current is the largest among the first to third currents, it is determined that the cooking vessel has a second size larger than the first size, and the working coil from the starting point to the second length is heated. to decide,

As the third current is the largest among the first to third currents, it is determined as a cooking vessel having a third size larger than the second size, and a working coil from the start point to the end point is determined as a heating range to store the code that causes it to

The operating device of a smart electric heating appliance.