KR102500521B1 - Cooking device and control method thereof - Google Patents

Abstract

A cooking vessel and a control method thereof according to an embodiment of the present invention include a heating unit including a plurality of heating zones generating heat, and a cooking vessel arranged to correspond to the plurality of heating zones and applied to each heating zone. It includes a plurality of pressure sensors for detecting weight and a control unit for controlling the heating unit according to the weight of the cooking vessel, wherein the control unit controls the heating intensity of the plurality of heating zones according to the weight values monitored by the plurality of pressure sensors. It is characterized by controlling.

Description

Cooking device and control method thereof {Cooking device and control method thereof}

One embodiment of the present invention relates to a cooking device. More specifically, it relates to a cooking appliance capable of adjusting the strength of an early stage according to the weight bias of food.

Cooking appliances that generate heat to cook food are generally manufactured to heat a certain area.

The cooking apparatus is divided into a combustion method generating heat by burning combustion gas and an electric method converting electrical energy into thermal energy.

In general, a cooking appliance generates heat, and a heating area in which the cooking appliance is seated is fixed to a certain size. Therefore, there is a disadvantage in that energy is wasted when the entire heating area is heated regardless of the floor area of the early device.

In addition, even if the cooking appliance is installed in the entire heating area, when the food is biased in the cooking appliance, heat cannot be accurately applied to the food and the same heat is applied to the entire heating area, so that the cooking time is delayed. The downside is that energy is wasted.

An object of the cooking apparatus according to an embodiment of the present invention is to differentially provide heat to an early cooking vessel according to the size of the cooking vessel and the bias of the food within the cooking vessel.

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

A cooking apparatus according to an embodiment of the present invention includes a heating unit including a plurality of heating zones generating heat, disposed corresponding to the plurality of heating zones and detecting the weight of a cooking vessel applied to each heating zone. A control unit controlling the heating unit according to a plurality of pressure sensors and the weight of the cooking vessel, wherein the control unit controls the heating intensity of the plurality of heating zones according to the weight values monitored by the plurality of pressure sensors. to be characterized

A method for controlling a cooking vessel according to an embodiment of the present invention includes the steps of detecting a heating area in which a cooking vessel is positioned among a plurality of heating areas, and selectively operating a heating area in which a cooking vessel is positioned among the plurality of heating areas. , measuring the weight values of the heating region where the cooking container is located, and individually controlling the heating intensity of the heating regions according to the weight value of the heating region where the cooking container is located.

An embodiment of the present invention has the following effects.

The present invention has an advantage of shortening cooking time and reducing energy consumption by applying intensive heat to food that is concentrated in a cooking vessel.

In addition, since the present invention notifies the user when the cooking vessel is located on the heating zone and operates the heating zone, there is an advantage of preventing operation in a state without an early cooker.

In addition, the present invention has an advantage in that the user can easily grasp the biased state of the food by displaying the state of the food in the cooking container as information that can be visually recognized by the user.

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

1A is a control block diagram of a cooking apparatus according to an embodiment of the present invention.
1B is a perspective view of a cooking apparatus according to an embodiment of the present invention.
2 is an exploded view of a cooking apparatus according to an embodiment of the present invention.
FIG. 3 is a cross-sectional view of the cooking device shown in FIG. 1 taken along line AA.
4 is a cross-sectional view taken along line BB of the cooking device shown in FIG. 1;
5 is a view showing a heating unit according to an embodiment of the present invention.
6 is a view showing the operation of a cooking apparatus according to an embodiment of the present invention.
7 is a schematic cross-sectional view of a cooking apparatus according to another embodiment of the present invention.
8 is a conceptual diagram viewed from the top of a cooking apparatus according to another embodiment of the present invention.
9 is a view showing a heating unit according to another embodiment of the present invention.
10 is a flowchart illustrating a control method of a cooking apparatus according to an embodiment of the present invention.

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments make the disclosure of the present invention complete, and common knowledge in the art to which the present invention belongs. It is provided to completely inform the person who has the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numbers designate like elements throughout the specification.

The spatially relative terms "below", "beneath", "lower", "above", "upper", etc. It can be used to easily describe components and their correlations with other components. Spatially relative terms should be understood as encompassing different orientations of elements in use or operation in addition to the orientations shown in the drawings. For example, if you flip a component shown in the drawing, a component described as "below" or "beneath" another component will be placed "above" the other component. can Thus, the exemplary term “below” may include directions of both below and above. Elements may also be oriented in other orientations, and thus spatially relative terms may be interpreted according to orientation.

Terminology used herein is for describing the embodiments and is not intended to limit the present invention. In this specification, singular forms also include plural forms unless specifically stated otherwise in a phrase. As used herein, "comprises" and/or "comprising" means that a stated component, step and/or operation excludes the presence or addition of one or more other components, steps and/or operations. I never do that.

Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used in a meaning commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in commonly used dictionaries are not interpreted ideally or excessively unless explicitly specifically defined.

In the drawings, the thickness or size of each component is exaggerated, omitted, or schematically illustrated for convenience and clarity of explanation.

In addition, angles and directions mentioned in the process of describing the structure of the embodiment are based on those described in the drawings. In the description of the structure constituting the embodiment in the specification, if the reference point and the positional relationship for the angle are not clearly mentioned, refer to the related drawings.

Hereinafter, embodiments will be described in more detail with reference to the drawings.

1A is a control block diagram of a cooking apparatus according to an embodiment of the present invention, and FIG. 1B is a perspective view of a cooking apparatus according to an embodiment of the present invention.

Referring to FIG. 1 , in the cooking apparatus according to an embodiment of the present invention, a heating unit 50 including a plurality of heating regions S generating heat is arranged to correspond to the plurality of heating regions S, respectively. A control unit 93 for controlling the heating unit 50 according to the weight of the plurality of pressure sensors 23 and the cooking vessel 1 for detecting the weight of the cooking vessel 1 applied to the heating region S of include

In addition, the cooking device according to an embodiment of the present invention includes a detection sensor 22 for detecting the presence or absence of the cooking container 1, a command input unit 91, a temperature sensor 21, a light 40, and a communication unit 60. ) and a display unit 90 may be further included.

The heating unit 50 is a device that applies heat to the cooking container 1 . The heating unit 50 may include various means for generating heat by burning combustion gas, generating heat by converting electrical energy into thermal energy, or generating heat in the cooking container 1 by electromagnetic induction. .

The heating unit 50 includes a plurality of heating regions (S). The heating regions (S) are arranged two-dimensionally spaced apart from each other. The heating zones S of the heating unit 50 operate independently of each other. A detailed structure of the heating unit 50 will be described later.

The communication unit 60 transmits a control signal input from the control unit 93, receives information signals from other home appliances (not shown) and mobile terminals (not shown), and outputs the received information signals to the control unit 93. do.

The communication unit 60 is not only wireless Internet communication such as WLAN (Wireless LAN) (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access), WiFi, Bluetooth (Bluetooth), RFID (Radio Frequency Identification), infrared communication (IrDA, Infrared Data Association), UWB (Ultra Wideband), ZigBee, etc. . However, preferably, the communication unit 60 may use a beacon method.

In the cooking container 1, cooking information may be transmitted through the communication unit 60 and transmitted to the user's mobile terminal.

The command input unit 91 receives a user's command, converts the user's command into a command signal, and outputs the command signal to the controller 93. The controller 93 controls the cooking container 1 based on the command signal. The command input unit 91 includes a button, a touch sensor, a dial, etc., which are physical input means for receiving a user's command. The command input unit 91 may include a touch panel overlapped with the display unit 90 in a layered structure, and operate as a touch screen to allow information input by a user's touch. The command input unit 91 may be disposed on a table top or adjacent to the heating unit 50 . Specifically, the command input unit 91 receives setting information of the cooking vessel 1, such as a set temperature.

The temperature sensor 21, the detection sensor 22, and the pressure sensor 23 may be formed of one module. The temperature sensor 21, the detection sensor 22, and the pressure sensor 23 may be collectively defined as the sensor unit 20.

A plurality of sensor units 20 are disposed to correspond to the plurality of heating regions S so as to easily grasp the state of the cooking container 1 . Detailed arrangement of the sensor unit 20 will be described later.

The temperature sensor 21 measures the temperature of the cooking container 1 and provides the measured value to the controller 93. Specifically, the temperature sensor 21 measures the temperature of one region of the cooking container 1 corresponding to each heating region S, and provides the measured value to the controller 93. It is preferable to have the number of temperature sensors 21 corresponding to the plurality of heating regions (S). The plurality of temperature sensors 21 may be arranged to vertically overlap each of the plurality of heating regions S.

The detection sensor 22 detects whether the cooking container 1 is positioned on the heating region S and provides the detected value to the controller 93. The detection sensor 22 includes an illuminance sensor or a proximity sensor.

The illuminance sensor detects information about the brightness of the upper part of each heating region (S) and provides it to the control unit 93. The control unit 93 determines whether or not the cooking container 1 exists above each heating region S based on the illuminance value input from the illuminance sensor.

The proximity sensor detects the cooking container 1 adjacent to the upper portion of the heating region S, and provides the information to the control unit 93. A proximity sensor refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or an object existing nearby without mechanical contact by using the force of an electromagnetic field or infrared rays. Examples of the proximity sensor include a transmission type photoelectric sensor, a direct reflection type photoelectric sensor, a mirror reflection type photoelectric sensor, a high frequency oscillation type proximity sensor, a capacitance type proximity sensor, a magnetic type proximity sensor, an infrared proximity sensor, and the like. The control unit 93 determines whether or not the cooking container 1 exists above each heating region S based on the input value input from the proximity sensor.

Specifically, the detection sensor 22 detects whether or not the cooking container 1 is present in the region corresponding to each heating region S, and provides the detected value to the controller 93. The detection sensor 22 preferably has a number corresponding to the plurality of heating regions (S). A plurality of detection sensors 22 may be arranged to overlap each of the plurality of heating regions (S).

The pressure sensor 23 measures the pressure applied to the upper portion of each heating zone S, and outputs the pressure value to the control unit 93. The control unit 93 determines whether or not the cooking container 1 exists on each heating zone S based on the pressure value input from the pressure sensor 23, and cooks between each heating zone S. Determine the weight bias of water (W).

Specifically, the pressure sensor 23 detects the weight value of the cooking container 1 (hereinafter, the weight value of the heating region S) in the region corresponding to each heating region S, and transmits the detected value to the control unit. (93). It is preferable to have the number of pressure sensors 23 corresponding to the plurality of heating regions S. The plurality of pressure sensors 23 may be disposed to overlap each of the plurality of heating regions S.

The display unit 90 displays information on the cooking container 1 that can be visually recognized. The display unit 90 is a display device that outputs text or images. The display unit 90 receives the suggestion signal from the control unit 93 and outputs text or images corresponding to temperature information, weight information, and cooking container 1 information. More specifically, the display unit 90 receives the suggestion signal from the control unit 93 and displays a difference in heating intensity between the heating zones S and/or a difference in weight between the heating zones S.

The light 40 outputs visually recognizable light. The light 40 outputs a visually recognizable image.

Specifically, the lighting 40 may be arranged singularly or may be arranged in plurality. The lighting 40 may include a plurality of point light sources 41 . A light emitting diode (LED) may be applied to the point light source 41 .

Here, a plurality of LEDs may all emit white light to provide white light 40, and red, green, and blue LEDs may be combined to provide light 40 of a specific color or white light. of lighting 40 can be provided. Conventional analog lighting 40 has limitations in precisely controlling the illuminance, but the LED can precisely adjust the illuminance of the LED by adjusting the amount of applied current and the width of the driving pulse. In addition, when LEDs of R, G, and B colors are installed in combination, lighting 40 of a specific color can be provided in a specific space, and color temperature can be easily controlled.

The lighting 40 is controlled on/off, partial on/off, brightness and color according to the control signal of the control unit 93. The lighting 40 displays state information of the cooking container 1 positioned on each heating region S.

The lighting 40 is disposed at least in part on an arbitrary boundary formed to surround the entirety of the plurality of heating regions S. That is, the lighting 40 displays the area where the heating area S is located.

The control unit 93 controls the overall control operation of the cooking vessel 1.

The controller 93 controls at least one of the lighting 40, the heating intensity of the heating unit 50, and the display unit based on the sensing information provided by the sensor unit 20. The control unit 93 may be provided in each cooking vessel 1, may be provided in a server connected to the cooking vessel 1 through a wired or wireless communication method, or may be provided in each cooking vessel 1 and the server at the same time. there is.

In terms of hardware, the control unit 93 includes application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), control modules ( It may be implemented using at least one of processors, controllers, micro-controllers, microprocessors, and electrical units for performing other functions. A detailed control method for the controller 93 will be described later.

Hereinafter, one embodiment of the structure of the heating unit 50 will be described in detail.

2 is an exploded view of a cooking device according to an embodiment of the present invention, FIG. 3 is a cross-sectional view of the cooking device shown in FIG. 1 taken along line A-A, and FIG. 4 is a cross-sectional view taken along line B-B of the cooking device shown in FIG. .

1 to 4, the heating unit 50 generates a magnetic field to induce an eddy current in the cooking vessel 1 so that the cooking vessel 1 is heated and a plurality of heating regions S are defined. Two working coils 52, a power supply unit providing an induced voltage so that the plurality of working coils 52 can operate, and a tabletop supporting the cooking vessel 1 on the top and covering the plurality of working coils 52 (10) is included.

The tabletop 10 of the embodiment supports the cooking vessels 1, and the tabletop 10 also provides a space necessary for cooking. The tabletop 10 may have legs 20 and may be attached to the top of other appliances or furniture.

The tabletop 10 may include the top plate 120 or may include the top plate 120 and the cover 110 . 1 to 4 show that the table top 10 is composed of a top plate 120 and a cover 110. However, the structure of the tabletop 10 is not limited thereto.

The cover 110 is located on top of the top plate 120 and covers at least the top of the top plate 120 . The cover 110 supports the cooking container 1 . In addition, the cover 110 includes an accommodating portion 111 accommodating the top plate 120 and the heating unit 50 . The receiving portion 111 is a space defined by the cover 110 at the bottom of the cover 110 . Specifically, the cover 110 has an accommodation part 111, which is a space in which the upper plate 120 and the heating unit 50 are accommodated, and an opening is formed at the lower side, and the lower opening is formed by a lower plate (not shown). It may have a shielded structure. At this time, the cover 110 forms the appearance of the tabletop 10 .

The cover 110 does not interfere with electromagnetic induction occurring between the heating unit 50 and the cooking vessel 1, and may be made of a material having heat resistance and rigidity. In addition, the cover 110 includes a transparent or/and translucent material through which the light generated by the lighting 40 can pass. Preferably, the cover 110 has heat resistance, light transmission and non-magnetic properties. For example, the cover 110 includes any one of a proxy wire having a thickness through which light passes, wood, and a resin material. However, the material of the cover 110 is not limited thereto.

The top plate 120 forms the tabletop 10 together with the cover 110 or forms the tabletop 10 alone. The top plate 120 supports the electric appliance or the cooking container 1 . The top plate 120 is disposed under the cover 110 . The upper plate 120 is formed in a plate shape. The top plate 120 has a shape corresponding to that of the cover 110 .

Specifically, for the rigidity of the table top 10, the upper plate 120 is selected from a material having rigidity and non-magnetic properties. For example, the tabletop 10 is made of resin or wood.

The upper plate 120 provides a space in which the heating unit 50 is coupled, and light generated from the lighting 40 is transmitted. In the embodiment, a light transmission portion is formed in the top plate 120 to emit light generated from the lighting 40 to the top of the top plate 120 without reducing the rigidity of the top plate 120 .

The light transmission portion is formed on the top plate 120 so that the light generated by the lighting 40 is transmitted. Specifically, the light transmission portion allows at least a portion of the light generated by the lighting 40 to be emitted to the top of the top plate 120 .

The light-transmitting portion may be an empty space through which light passes or may be made of a transparent material, but in this embodiment, the light-transmitting portion includes a plurality of light-transmitting holes 121 formed by opening the top plate 120 from the bottom to the top.

The light transmission hole 121 is a space through which the light generated by the lighting 40 passes. Light passing through the light transmission hole 121 may be projected onto the cover 110 to form a border pattern indicating an area where the cooking container 1 or the electronic device is located. In addition, light passing through the light transmission hole 121 may be emitted to the top of the top plate 120 to form a border pattern indicating an area where the cooking container 1 or electronic device is located. Of course, the light may be emitted to the top of the top plate 120 passing through the light transmission hole 121 to form a border pattern indicating an area where the cooking container 1 or the electronic device is located.

The diameter of the light transmission hole 121 is not limited, but is preferably 1 mm to 3 mm in consideration of the rigidity of the top plate 120 and whether or not light is transmitted.

In addition, the light transmission hole 121 of the recovery dog determines the coupling position of the heating unit 50 . Specifically, when viewed from above, a plurality of light transmission holes 121 are regularly arranged on the top plate 120 . That is, the plurality of light transmission holes 121 are arranged in rows and columns with a constant pitch. Accordingly, when the heating unit 50 is fastened, the fastening member 140 connected to the heating unit 50 is fastened to one of the plurality of light transmission holes 121 .

That is, the light transmission hole 121 allows the user to recognize the alignment position of the cooking vessel 1 or the electronic device and provides a space where the fastening member 140 is coupled.

The heating unit 50 is located on the lower surface of the upper plate 120 and supplies energy to the cooking container 1 . The heating unit 50 is accommodated in the accommodating portion 111 of the cover 110 and coupled to the bottom surface of the top plate 120 .

For example, the heating unit 50 heats the cooking vessel 1 by inducing an eddy current in the cooking vessel 1 . Induction heating is a method of heating metals using electromagnetic induction.

Hereinafter, the heating unit 50, which is an embodiment of the heating unit 50, and the lighting 40 installed in the heating unit 50 will be described in detail.

5 is a view showing a view of the heating unit 50 according to an embodiment of the present invention viewed from an upper direction.

3 to 5, the heating unit 50 has a case 51 forming a receiving space 53 therein, installed inside the case 51 and exposed to the top of the case 51, and a magnetic field It includes a working coil 52 that generates and a power supply unit (not shown) that provides an induced voltage so that the working coil 52 can operate.

The case 51 has an open top and a receiving space 53 is defined therein. A flange is formed on the edge of the case 51, and a through hole 54 through which the fastening member 140 passes is formed in the flange. The through hole 54 is a space through which the fastening member 140 passes. The fastening member 140 is fastened to the light transmitting part.

The working coil 52 generates a magnetic field to inductively heat an object close to the working coil 52 . The working coil 52 is exposed to the top of the case 51 and is disposed adjacent to the top plate 120 .

A plurality of working coils 52 may be disposed to correspond to each heating region S so as to define a plurality of heating regions S. Specifically, the working coils 52 may be disposed spaced apart from each other in a two-dimensionally constant area when viewed from above. At this time, the induced voltage may be separately supplied to the plurality of working coils 52 of the power supply unit. Each heating region S may have various shapes occupying a certain space on a plane.

At this time, the plurality of pressure sensors 23, temperature sensors 21, and detection sensors 22 are disposed to correspond to the respective working coils 52. Specifically, the plurality of pressure sensors 23, temperature sensors 21, and detection sensors 22 are disposed on the tabletop 10 overlapping each of the working coils 52. More specifically, a plurality of sensor units 20 including a pressure sensor 23, a temperature sensor 21 and a detection sensor 22 may be disposed to correspond to each working coil 52. The sensor unit 20 may be interpolated to the cover 10 of the tabletop 10 overlapping each of the working coils 52 .

For example, lighting 40 is disposed in heating unit 50 . Of course, it is not limited thereto, and the lighting 40 may be disposed on the tabletop 10 . The lighting 40 may form a certain shape or line by gathering a plurality of point light sources 41 .

As shown in FIG. 5 , a plurality of point light sources 41 are disposed at least partially or entirely around the heating unit 50 . The lighting 40 may display the boundary of an area where the cooking container 1 supported by the cover 110 or the electronic device can be operated by energy supplied from the heating unit 50 . Specifically, the plurality of lights 40 mark boundaries for the heating unit 50 to induce eddy currents in the cooking container 1 .

More specifically, the plurality of lights 40 are installed in the case 51 to be exposed to the upper portion of the case 51 . The plurality of lights 40 are disposed in at least a partial region on an arbitrary curve surrounding the working coil 52, viewed from above.

Therefore, since the lights 40 allow the user to recognize an area in which the cooking vessel 1 or the electronic device supported by the cover 110 can operate, the user can easily determine the location of the cooking vessel 1 or the electronic device.

In addition, the point light sources 41 may be interlocked with each heating zone S to display whether the heating zone S operates, heating intensity, and weight value. The point light sources 41 may have the same number as each heating region S, but the point light sources 41 forming one group and the heating region S forming one group may be interlocked. .

A radio frequency identification reader 160 may be installed in the heating unit 50 to receive information from a radio frequency identification (RFID) tag installed in the cooking vessel 1 or an electronic device. The radio frequency identification reader 160 provides information of the received radio frequency identification (RFID) tag to the controller 200 . The controller 200 controls the operating strength and operation of the heating unit 50 through the information of the received radio frequency identification (RFID) tag.

Hereinafter, detailed operations of the cooking device will be described in detail.

Figure 6a is a view of the heating unit viewed from the top to explain the operation of the cooking apparatus according to an embodiment of the present invention, Figure 6b is a cooking apparatus for explaining the operation of the cooking apparatus according to an embodiment of the present invention A cross section of the device.

Referring to FIGS. 6A and 6B , the controller 93 controls the cooking vessel 1 according to whether or not the cooking vessel 1 exists, a weight value, a temperature value of the cooking vessel 1, and a user's command.

For example, the controller 93 may control the heating unit 50 to selectively operate a heating region S in which the weight of the cooking vessel 1 is sensed among the plurality of heating regions S. When the control unit 93 exceeds a predetermined weight value based on the weight value of each heating region S measured by each pressure sensor 23 disposed to correspond to each heating region S, the heating It is determined that the cooking vessel 1 exists on the area S, and the heating area S corresponding to the pressure sensor 23 exceeding a predetermined weight value is operated to generate heat in the cooking vessel 1. can Therefore, since only the heating region S corresponding to the bottom surface of the cooking container 1 is operated, there is an effect of reducing energy waste.

In addition, the controller 93 may control the heating unit 50 to selectively operate the heating region S of the cooking container 1 among the plurality of heating regions S. Specifically, the control unit 93, based on each detected value measured by each detection sensor 22 disposed to correspond to each heating region (S), the cooking vessel 1 at the top of the heating region (S) ) It is possible to determine a specific heating region (S) where is located, and to operate the heating region (S) determined that the cooking vessel (1) is located thereon. That is, among the plurality of heating regions S, only the heating regions S positioned to vertically overlap the cooking container 1 may be selectively controlled to be turned on.

For another example, the controller 93 may control the heating unit 50 according to the weight of some or all of the cooking container 1 . The control unit 93 may differentially control the heating intensity of the plurality of heating regions S according to the weight values monitored by the plurality of pressure sensors 23 .

The cooking object W is located inside the cooking container 1, but the food W is not located only in the center of the cooking container 1, and its position is biased in one direction during the cooking process. case occurs At this time, the embodiment applies intensive heat to the food W concentrated in the cooking vessel 1, thereby shortening the cooking time and reducing energy consumption.

The controller 93 may control the heating intensity of the heating regions S in proportion to the weight value applied to the heating regions S where the weight of the cooking container 1 is sensed. Specifically, the control unit 93 controls the heating area (S) in which a relatively large weight value is measured among the plurality of heating areas (S) to have a higher heating intensity than the heating area (S) in which a relatively small weight value is measured. You can control it. Here, the heating intensity of the heating region S is the intensity of heat applied to the cooking container 1 . The heating intensity of the heating region (S) may mean a heat quantity or temperature value of the heat of the heating region (S). More specifically, the control unit 93 sets the current or voltage value of the induction power source supplied to the working coils 52 in proportion to the weight value applied to the heating regions S where the weight of the cooking vessel 1 is sensed. You can control it.

For another example, the control unit 93 maintains the on state of the heating zone S to which a relatively large weight value is applied among the plurality of heating zones S, and the relatively small weight among the plurality of heating zones S The heating region S to which the value is applied can be controlled to be periodically turned off. This can reduce energy consumption by periodically turning off the heating area (S) when the intensity of the heating area (S) cannot be separately adjusted.

For another example, when the set temperature of the cooking vessel 1 is set, the control unit 93 controls the heating unit 50 so that the temperature of the cooking vessel 1 reaches the set temperature and is maintained at the set temperature. The control unit 93 controls the temperature of the cooking container 1 located on the heating region S to which a relatively large weight value is applied among the plurality of heating regions S to be maintained at a set temperature, and the plurality of heating regions Among (S), the temperature of the cooking container 1 positioned on the heating region S to which a relatively small weight value is applied may be controlled to be maintained at a temperature lower than the set temperature. At this time, the temperature smaller than the set temperature may be 90% to 50% of the set temperature.

For another example, the control unit 93 calculates information about the bias of the food W in the cooking container 1 and the difference in heating intensity between the respective heating regions S according to the bias of the food W. It can be provided as information (in detail, visual information) that can be recognized by the user.

Specifically, the controller 93 may change the color or brightness of the point light sources 41 corresponding to the respective heating regions S in response to the heating intensity of the heating regions S. More specifically, the control unit 93 controls a certain number of point light sources 41 adjacent to the heating region S having a relatively high heating intensity among the plurality of heating regions S to heat the heating region S having a relatively low heating intensity. It may have a different brightness or color from a certain number of point light sources 41 adjacent to . The control unit 93 has a certain number of point light sources 41 adjacent to the heating region S having a relatively high heating intensity among the plurality of heating regions S, a certain number adjacent to the heating region S having a relatively low heating intensity. It may have a brighter brightness or a color closer to red than the point light source 41 of . In addition, the controller 93 may control display areas corresponding to the plurality of heating areas S to be displayed on the display unit 90 . The display area includes an image corresponding to the entire heating area (S). The controller 93 controls one portion corresponding to the heating region S having a relatively high heating intensity among the plurality of heating regions S in the display area and another portion corresponding to the heating region S having a relatively low heating intensity. may display different brightness or color.

The control unit 93 may control the color or brightness of the point light sources 41 corresponding to the heating regions S to be changed in response to the weight values of the heating regions S. The control unit 93 may control the brightness of the corresponding point light sources 41 in proportion to the weight values of the heating regions S. Specifically, the control unit 93 controls a certain number of point light sources 41 adjacent to the heating area S having a relatively large untitled value among the plurality of heating areas S, the heating area S having a relatively small weight value. ) may have a different brightness or color than a certain number of point light sources 41 adjacent to . The control unit 93 has a certain number of point light sources 41 adjacent to the heating region S having a relatively high weight value among the plurality of heating regions S, adjacent to the heating region S having a relatively low weight value. It may have brighter brightness or a color closer to red than a certain number of point light sources 41 . More specifically, the heating region (S) is divided into a plurality of groups along the circumferential direction based on the center of the entire heating region (S), and the plurality of groups are divided along the circumferential direction based on the center of the entire heating region (S). After classifying the point light source 41 as , determining a group of heating regions (S) having a relatively high weight value among a plurality of heating region (S) groups, and determining a heating region (S) having a relatively high weight value The point light source 41 group located on the extension line of the line connecting the group of and the center of the entire heating region S is controlled to have a different color or brightness than other point light source 41 groups.

The controller 93 may control the display unit to display visually recognizable information corresponding to the heating intensity of the heating regions S or the weight of the heating regions S. The controller 93 controls a part corresponding to the heating region S having a relatively high weight value among the plurality of heating regions S in the display area and a part corresponding to the heating region S having a relatively low weight value. The brightness or color of different parts may be displayed differently.

Figure 7 is a schematic cross-sectional view of a cooking apparatus according to another embodiment of the present invention, Figure 8 is a conceptual view viewed from the top of the cooking apparatus according to another embodiment of the present invention, Figure 9 is a heating unit according to another embodiment of the present invention is a drawing showing

The heating unit 500 according to another embodiment of the present invention generates heat by burning combustion gas, and includes a plurality of gas burner heads 520 and a plurality of gas burner heads 520 defining a plurality of heating regions (S). ) and a plurality of control valves 570 for controlling the gas inflow of the gas inlet pipe 560 for supplying combustion gas to the gas burner head 520.

The heating unit 500 may further include a housing accommodating the gas burner head 520, the control valve 570, and the gas inlet pipe 560.

The plurality of gas burner heads 520 are two-dimensionally arranged to correspond to the plurality of heating regions S. The gas burner head 520 ejects combustion gas to the outside to heat the cooking container 1 with the heat of combustion of the combustion gas. An ignition unit 580 for igniting combustion gas is disposed in the gas burner head 520 .

The gas inlet pipe 560 supplies combustion gas to the plurality of gas burner heads 520 . The gas inlet pipe 560 communicates with the plurality of gas burner heads 520 and communicates with a storage for storing combustion gas.

The control valve 570 controls the gas inflow of the plurality of gas burner heads 520 . Specifically, a plurality of control valves 570 may be disposed corresponding to each gas burner head 520 . The control valve 570 may include a solenoid valve capable of electronic opening control.

The control unit 93 controls the heating intensity of each heating region S, which controls the opening values of the plurality of control valves 570. The controller 93 may control the opening values of the plurality of control valves 570 in proportion to the weight applied to the heating regions S where the weight of the cooking container 1 is sensed.

A support member 550 spaced apart from the plurality of gas burner heads 520 and the cooking vessel 1 and supporting the cooking vessel 1 is disposed on the plurality of gas burner heads 520 . The support member 550 has a lattice shape so that the flame generated by the combustion gas contacts the cooking container 1 and the cooking container 1 can be supported on the gas burner head 520 .

Both ends of the support member 550 are connected to the case. The support member 550 may include a first member 551 and a second member 552 disposed in a direction crossing the first member 551 . At this time, the sensor unit 20 may be disposed on the support member 550 . That is, the plurality of sensor units 20 may be disposed in one area of the support member 550 overlapping each gas burner head 520 .

10 is a flowchart illustrating a method of controlling the cooking vessel 1 according to an embodiment of the present invention.

Referring to FIG. 10, the control method of the cooking vessel 1 according to the embodiment includes a step of detecting a heating area S in which the cooking vessel 1 is located among a plurality of heating areas S (S22), a plurality of heating areas Of (S), the step of selectively operating the heating region (S) where the cooking vessel (1) is located (S23) and the step of measuring the weight values of the heating region (S) where the cooking vessel (1) is located (S23) , and individually controlling the heating intensity of the heating regions (S) according to the weight of the heating region (S) where the cooking vessel (1) is located (S24).

The control method of the cooking vessel 1 of the embodiment detects the cooking vessel 1 located on the heating region S, and controls the lighting 40 to be turned on when the cooking vessel 1 is detected. Yes (S20) (S21). Specifically, the control unit 93 determines that the cooking vessel 1 exists on the heating area S when the weight value of the heating area S measured by the pressure sensor 23 exceeds a preset weight value. can be judged to be In addition, the controller 93 may determine that the cooking vessel 1 is located above the heating region S based on each detected value measured by the sensor 22 .

The step of detecting the heating region (S) where the cooking container 1 is located (S23) detects the heating region (S) where the cooking container 1 is located among the plurality of heating regions (S) and transmits the detected information to the control unit 93) provided. Specifically, in step S23 of detecting the heating region S where the cooking vessel 1 is located, the control unit 93 uses each pressure sensor 23 disposed to correspond to each heating region S. When the measured weight value of each heating region S exceeds a predetermined weight value, the heating region S in which the cooking vessel 1 is located may be determined. In addition, in step S23 of detecting the heating region S where the cooking vessel 1 is located, the control unit 93 measures the measurement at each detection sensor 22 disposed to correspond to each heating region S. Based on each detected value, it is possible to determine a specific heating region (S) in which the cooking vessel (1) is located above the heating region (S).

In step S23 of selectively operating the heating region S, the heating region S where the cooking container 1 is located among the plurality of heating regions S is selectively operated. Specifically, in the step (S23) of selectively operating the heating zone (S), the heating unit (50) so that the detected heating zone (S) of the cooking container (1) is selectively operated among the plurality of heating zones (S). can control. In step S23 in which the heating zone S is selectively operated, the control unit 93 based on each detected value measured by each detection sensor 22 disposed to correspond to each heating zone S , It is possible to determine a specific heating region S in which the cooking container 1 is located above the heating region S, and operate the heating region S determined to have the cooking container 1 located there. That is, among the plurality of heating regions S, only the heating regions S positioned to vertically overlap the cooking container 1 may be selectively controlled to be turned on.

In step S23 of measuring the weight values of the heating zone S, the weight values of each heating zone S where the cooking container 1 is located are independently measured. Specifically, each pressure sensor 23 measures the weight of the cooking vessel 1 in each heating zone S, and provides the measured value to the control unit 93.

In the step of individually controlling the heating intensity of the heating regions (S) (S24), the heating intensity of the heating regions (S) is individually controlled according to the weight value of the heating region (S) where the cooking vessel (1) is located. Specifically, in the step of individually controlling the heating intensity of the heating zones (S) (S24), the control unit 93 heats the plurality of heating zones (S) according to the weight values monitored by the plurality of pressure sensors (23). intensity can be differentially controlled, and the control unit 93 controls the heating intensity of the heating regions S in proportion to the weight value applied to the heating regions S in which the weight of the cooking container 1 is sensed. can The control unit 93 can control the heating region S, in which a relatively large weight value is measured, to have a higher heating intensity than the heating region S in which a relatively small weight value is measured among the plurality of heating regions S. there is. More specifically, in the step of individually controlling the heating intensity of the heating regions (S) (S24), the control unit 93 determines the weight value applied to the heating regions (S) in which the weight of the cooking container 1 is sensed. It is possible to control the current or voltage value of the induction power supplied to the working coils 52 in proportion. In the step (S24) of individually controlling the heating intensity of the heating zones (S), the control unit 93 maintains the heating zone (S) to which a relatively large weight value is applied among the plurality of heating zones (S) in an on state And, among the plurality of heating regions (S), the heating region (S) to which a relatively small weight value is applied can be controlled to be turned off periodically.

In addition, the control method of the cooking container 1 of the embodiment may display the biased state of the food W (S31) or/and display the intensity change of the heating region (S) (S32).

The step of displaying the biased state of the food W (S31) may be performed before the step of controlling the heating intensity. In the step of displaying the biased state of the food W (S31), the controller 93 displays the location area corresponding to the heating area S where the cooking container 1 is located on the display unit 90, and displays the heating area. In response to the weight values of (S), weight bias can be displayed within the location area within the location area. In the step of displaying the biased state of the food (W) (S31), the control unit 93 displays a part corresponding to the heating area (S) having a relatively high weight among the plurality of heating areas (S) in the location area; The brightness or color of other parts corresponding to the heating area S having a relatively low weight value may be displayed differently.

Displaying the change in intensity of the heating region (S) (S32) displays the change in heating intensity of the heating region (S) on the display unit 90 as user-recognizable information. In the step of displaying the change in intensity of the heating region S (S32), the controller 93 controls a portion corresponding to the heating region S having a relatively high heating intensity value among the plurality of heating regions S in the location region. And, the brightness or color of other parts corresponding to the heating region S having a relatively low heating intensity value may be displayed differently.

In addition, in the control method of the cooking vessel 1 of the embodiment, when the set temperature value of the cooking vessel 1 is not set, the heating area S according to the weight value of the heating area S where the cooking vessel 1 is located. ) individually control the heating intensity.

In the control method of the cooking vessel 1 of the embodiment, when the set temperature value of the cooking vessel 1 is set, cooking located on a heating area S to which a relatively large weight value is applied among a plurality of heating areas S The temperature of the container 1 is controlled to be maintained at the set temperature (S28), and the temperature of the cooking container 1 located on the heating region (S) to which a relatively small weight value is applied among the plurality of heating regions (S) is controlled to be maintained at a temperature lower than the set temperature (S29).

Although the above has been described with reference to the embodiments, these are only examples and do not limit the present invention, and those skilled in the art to which the present invention belongs will not deviate from the essential characteristics of the present embodiment. It will be appreciated that various variations and applications are possible. For example, each component specifically shown in the embodiment can be modified and implemented. And differences related to these modifications and applications should be construed as being included in the scope of the present invention as defined in the appended claims.

Claims (20)

a heating unit including a plurality of heating regions generating heat;
a plurality of pressure sensors arranged to correspond to the plurality of heating zones and detecting the weight of the cooking container applied to each heating zone; and
A controller for controlling the heating unit according to the weight of the cooking container;
The control unit,
Control the heating intensity of the plurality of heating zones according to the weight values monitored by the plurality of pressure sensors,
Lighting disposed at least partially in an arbitrary boundary formed to surround the plurality of heating regions;
Further comprising a top plate covering the heating unit and including a plurality of light transmission holes through which the light generated by the lighting passes;
The cooking apparatus according to claim 1 , wherein a fastening member connected to the heating unit is fastened to one of the light transmitting holes. According to claim 1,
The control unit controls a heating region in which the weight of the cooking vessel is sensed to be selectively operated among the plurality of heating regions. According to claim 1,
Further comprising a detection sensor for detecting the cooking vessels located on the plurality of heating zones,
The control unit controls a heating region in which the cooking vessel is sensed to be selectively operated. According to claim 2,
The control unit controls the heating intensity of the heating regions in proportion to the weight value applied to the heating regions where the weight of the cooking container is sensed. According to claim 4,
The control unit controls a heating region to which a relatively small weight value is applied among the plurality of heating regions to be periodically turned off. According to claim 4,
a plurality of temperature sensors arranged to correspond to the plurality of heating zones and measuring the temperature of the cooking vessel located on each of the heating zones; and
Further comprising a command input unit for receiving a user command such as a set temperature,
The control unit,
The temperature of the cooking vessel located on the heating area to which a relatively large weight value is applied among the plurality of heating areas is controlled to be maintained at a set temperature,
A cooking device for controlling the temperature of the cooking container located on a heating region to which a relatively small weight value is applied among the plurality of heating regions to be maintained at a temperature lower than a set temperature. According to claim 1,
The heating unit,
A plurality of working coils generating a magnetic field to induce eddy current in the cooking vessel to heat the cooking vessel and defining the plurality of heating regions;
A power supply unit for providing an induced voltage so that the plurality of working coils can operate;
A cooking apparatus including a tabletop supporting the cooking vessel on an upper portion and covering the plurality of working coils. According to claim 7,
The control unit controls current or voltage values of power supplied to the working coils in proportion to weight values applied to heating regions where the weight of the cooking container is sensed. According to claim 7,
The plurality of pressure sensors are disposed on a tabletop overlapping the plurality of working coils. According to claim 1,
The heating unit,
A plurality of gas burner heads generating heat by burning combustion gas and defining the plurality of heating regions;
A gas inlet pipe for supplying combustion gas to the plurality of gas burner heads;
A cooking device including a plurality of control valves for controlling the gas inflow of the gas burner head. According to claim 10,
The control unit controls opening values of the plurality of control valves in proportion to weight values applied to heating regions where the weight of the cooking vessel is sensed. According to claim 10,
The heating unit further includes an ignition unit disposed on the plurality of gas burner heads to ignite combustion gas. delete According to claim 1,
The lighting includes a plurality of point light sources corresponding to the plurality of heating regions,
The control unit changes the color or brightness of the point light sources corresponding to each of the heating regions in response to the heating intensity of the heating regions. According to claim 1,
The lighting includes a plurality of point light sources corresponding to the plurality of heating regions,
The control unit changes the color or brightness of the point light sources corresponding to the respective heating regions in response to the weight values of the heating regions. According to claim 1,
Further comprising a display unit for displaying information of the visually recognizable cooking container,
The control unit displays visually recognizable information on the display unit in response to the heating intensity of the heating regions or the weight of the heating regions.

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