KR101949606B1 - Electric range - Google Patents

Abstract

An electric range comprises: a main body part including a storage space therein; an upper panel part coupled to the main body part; a coil part having a circular plate shape and disposed adjacent to a lower surface of the upper panel part; a power supply part for supplying power to the coil part; a weight measuring part disposed between the main body part and the upper panel part and measuring pressure applied through the upper panel part; a vibration sensor part disposed on a lower surface of the upper panel part to measure vibrations of the upper panel part; and a power control part for controlling the power supply part on the basis of a pressure measured by the weight measuring part and a vibration measured by the vibration sensor part.

Description

ELECTRIC RANGE

The present invention relates to an electric range, and more particularly, to an electric range improved in automatic cooking and power efficiency.

An electric range is a device for cooking food with an electric heater or a separate heating element as a heat source. The electric range is divided into an induction heater and a hot line heater according to the type of heat source. The induction heater uses a principle of generating heat in the cooking vessel itself by applying magnetic force to the cooking vessel by an electromagnetic induction method. The heat wire heater generates heat in the heater itself by using radiant heat to heat the cooking vessel.

The size of the kiln of the electric induction is varied, and the size of the kiln often does not match the size of the cooking vessel. If the cooking vessel is small compared to the fireplace, the firebox that does not contact the cooking vessel does not help to heat the cooking vessel, and unnecessary power is consumed.

On the other hand, the conventional electric range has no special function other than the simple heat transfer function that controls the thermal power based on the electric supply amount, and the price is relatively high. Therefore, there is a need for an electric range that can enhance consumer purchasing power through various functions that meet user's needs.

Korean Patent Publication No. 2012-0097661 (2012.09.05. Disclosed) Korean Registered Utility Model No. 0,465,232 (Announcement of Mar. 23, 2013)

The present invention provides an electric induction that can provide various functions to a user and facilitate a user's cooking operation.

The present invention provides an electric induction capable of improving power efficiency.

According to an aspect of the present invention, there is provided an electric range including: a main body including a storage space therein; An upper panel part coupled to the body part; A coil portion having a circular plate shape and disposed adjacent to a lower surface of the upper panel portion; A power supply unit for supplying power to the coil unit; A weighing part disposed between the main body part and the upper panel part and measuring pressure applied through the upper panel part; A vibration sensor unit disposed on a lower surface of the upper panel unit for measuring vibrations of the upper panel unit; And a power control unit for controlling the power supply unit based on the pressure measured by the weight measuring unit and the vibration measured by the vibration sensor unit.

According to one embodiment, the electric range includes an input unit for receiving recipe information from a user or from outside; A recipe storage unit for storing the recipe information; And an output unit outputting the recipe information as at least one of a voice and a character. In this case, the power control unit may control the power supply unit based on the cooking temperature and the cooking time included in the recipe information.

According to an embodiment, the electric range further includes a guide unit for generating a guide message based on a change in the pressure during the outputting of the recipe information through the output unit, Characters, or the like.

According to an embodiment, the coil portion may include: a first coil having a circular plate shape having a first radius and disposed adjacent to a lower surface of the upper panel portion; A second coil having an annular shape having a second radius larger than the first radius, the second coil having a second central axis different from the first central axis of the first coil, the second coil being disposed at an outer periphery of the first coil; And a third coil having a ring shape having a third radius larger than the second radius and having a third central axis different from the first central axis and the second central axis and disposed on the outer periphery of the second coil can do. In this case, the power supply unit may supply first to third powers to the first to third coils, respectively.

According to one embodiment, the electric range includes a first rotating plate having a cylindrical shape having a fourth radius that is greater than or equal to the second radius and smaller than the third radius, the first and second coils supporting the first and second coils, ; A first rotation driving unit disposed on a lower surface of the first rotation plate with the second central axis and rotating the first rotation plate; A second rotating plate having a cylindrical shape having a fifth radius greater than or equal to the third radius and supporting the first rotating plate, the first rotation driving portion, and the third coil; And a second rotation driving unit disposed on a lower surface of the second rotation plate with the third center axis for rotating the second rotation plate.

According to an embodiment of the present invention, the electric range may be disposed at an edge of an upper surface of the upper panel unit with a mutual isointensity with respect to one of the first to third central axes, A plurality of distance sensors each measuring distances to a pan; And a calculating unit for calculating a size of the cooking vessel and an area center of the cooking vessel based on distances measured by the distance sensors.

According to an embodiment of the present invention, the electric range may include at least one of a drive rotation angle of the first rotation plate and a rotation angle of the second rotation plate, which are calculated based on the size of the cooking vessel and the center of the area of the cooking vessel, And may further include a control unit.

According to an embodiment, the upper panel portion may include projections formed on the upper surface to support the pan and form a fluid movement path with the cooking container.

According to the embodiments of the present invention, the electric induction automatically controls the weight of the cooking vessel and the material measured through the weight measuring section and the electric power provided to the coil section based on the vibration of the cooking vessel measured through the vibration sensor section And an automatic cooking module for inputting, storing, and outputting the recipe information, thereby providing a variety of functions to the user and facilitating the user's cooking operation.

The electrical induction includes coils arranged asymmetrically (or with mutually different center axes), individually driving the coils, and adjusting the position of the coils to match the center axis of the cooking vessel, thereby reducing the power efficiency of the electrical induction Can be improved.

1A and 1B are views showing an electric induction according to embodiments of the present invention.
FIG. 2 is a block diagram showing an example of an automatic cooking module included in the electric induction of FIG. 1B.
FIG. 3A is a view showing a comparative example of a coil part included in the electric induction of FIG. 1B. FIG.
FIG. 3B is a view showing an example of a coil part included in the electric induction of FIG. 1B.
4A is a view showing an example of a rotation drive module included in the electric induction of FIG. 1B.
4B is a view for explaining a change in the position of the coil part according to the operation of the rotation drive module of FIG. 4A.
FIG. 5A is a view showing an example of the distance measurement module included in the electric induction of FIG. 1B.
Figs. 5B and 5C are views for explaining the contents of the electric induction of Fig.
6A and 6B are views showing an example of an upper panel part included in the electric induction of FIG. 1B.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The same reference numerals are used for the same constituent elements in the drawings and redundant explanations for the same constituent elements are omitted.

FIGS. 1A and 1B are views showing an electric induction according to embodiments of the present invention, and FIG. 2 is a block diagram showing an example of an automatic cooking module included in the electric induction of FIG. 1B.

1A and 1B, an electric range 100 includes a main body 110, an upper panel 120, a coil 130, a power supply 140, a power controller 150, 160 and a vibration sensor unit 170. In addition, the electric range 100 may further include an automatic cooking module 180. The electric range 100 can use both the electric induction type and the hot wire heater type (or the highlight type). Since the electric induction type electric range and the hot wire heater type electric range are different from each other only in the manner of operation of the coil portion 130 and the arrangements of the coil portion 130 and the like are substantially the same, The present invention is not limited thereto.

The main body 110 (or the case) may include a storage space therein. For example, the body portion 110 may have a hexahedron shape with its top surface opened. A power supply unit 140, a power control unit 150, a weight measuring unit 160, and a vibration sensor unit 170 may be disposed in the storage space.

The upper panel portion 120 may be coupled to the upper portion of the main body portion 110. The upper panel unit 120 may be directly coupled to the upper edge of the main body 110, but is preferably supported by a weight measuring unit 160 described later. The upper panel part 120 is not limited to a specific material, and various materials may be used depending on the type of the electric induction 100. [ For example, the upper panel unit 120 may be a ceramic glass having high heat resistance, which transmits heat generated in the coil part 130 in a hot wire heater system. Alternatively, the upper panel portion 120 may be a nonmagnetic plate that transmits magnetic lines of force generated by the coil portion 130 in an electric induction manner.

The coil portion 130 may have a disk-like shape and be disposed adjacent to a lower surface of the upper panel portion 120. For example, in the case of the hot wire heater method, the coil part 130 may be composed of a heating element arranged in a spiral shape on a specific plane. As another example, in the case of the electric induction type, the coil portion 130 may be constituted by an electromagnetic induction coil which is repeatedly wound on a specific plane. Alternatively, a separate support structure may be provided to support the coil part 130, and in particular to prevent heat from being transferred to other components in the case of a hot wire heater system. The support structure will be described later with reference to Fig.

The power supply unit 140 may supply power to the coil unit 130. For example, the power supply unit 140 may receive AC power from the outside and convert it into DC power and provide it to the coil unit 130. Alternatively, the power supply unit 140 may incorporate a separate battery (or a power charging device), and may supply the power of the battery to the coil part 130.

The power control unit 150 may adjust the operation of the power supply unit 140 (or the power supplied from the power supply unit 140 to the coil unit 130). The power control unit 150 may control the power supply unit 140 based on the operation of the weight measuring unit 160 and the vibration sensor unit 170.

The weight measuring unit 160 is disposed between the main body 110 and the upper panel unit 120 to measure a pressure applied through the upper panel unit 120. That is, the weight measuring unit 160 directly supports the upper panel unit 120, and can sense the weight of the cooking vessel disposed on the upper wing 120, the weight of the material in the cooking vessel, and the like. For example, the weighing unit 160 includes a plurality of load cells for measuring pressure, and the load cells are disposed at the corner of the body 110, so that the pressure applied to the upper panel unit 120 (or, Weight) can be measured as a whole.

The pressure (or weight) measured by the weight measuring unit 160 may be used to determine whether an appropriate amount of material has been introduced in the automatic cooking module 180 to be described later or may be determined based on the decrease in pressure in the power control unit 150 (For example, based on the weight change due to evaporation of water in the cooking vessel).

The vibration sensor unit 170 may be disposed on the lower surface of the upper panel unit 120 to measure vibration of the upper panel unit 120. For example, the upper panel unit 120 may receive vibrations generated by the heating of the upper cooking chamber, and the vibration sensor unit 170 may receive the vibrations generated by the upper panel unit 120, , And frequency can be measured. The vibration measured by the vibration sensor unit 170 may be used to determine whether water is boiling in the automatic cooking module 180, the electric power control unit 150, or the like.

In one embodiment, the power control unit 140 may reduce or stop the power supply of the power supply unit 150 when the measured pressure decreases through the weight measuring unit 160 to a predetermined level with respect to the initial pressure . For example, when 100 g of water is put in the cooking vessel and the weight is reduced by 50 g as the heating is performed through the electric range 100, the power supply unit 150 judges that there is a risk of fire and stops the power supply unit 150 . The power control unit 140 can more accurately determine the control time point of the power supply unit 150 based on the recipe information (for example, the amount of the material contained in the current cooking vessel, the amount of water, etc., .

In one embodiment, the power control unit 140 may reduce the power supplied to the power supply unit 150 when the vibration measured through the vibration sensor unit 170 changes beyond the reference value. For example, when the magnitude of the vibration measured through the vibration sensor 170 becomes larger than the reference value, the power controller 150 may determine that the water has started to boil and reduce the power supplied from the power supplier 150 .

1B and 2, the automatic cooking module 180 is disposed on one side of the upper panel unit 120, and automatically performs cooking using the electric induction 100, or provides information necessary for cooking to the user can do. The automatic cooking module 180 may include an input unit 210, a recipe storage unit 220, an output unit 230, and a guide unit 240.

The input unit 210 can receive recipe information from a user or from outside. For example, the input unit 210 may be implemented as a communication module and receive recipe information from an external device. For example, the input unit 210 may be a touch screen, a voice recognition device, or the like, and may receive recipe information through a user's touch input, voice input, or the like. Here, the recipe information may include the kind and weight (weight) of the material, the cooking temperature, and the cooking time.

The recipe storage unit 220 may store recipe information. For example, the recipe storage 220 may be implemented as a memory device.

The output unit 230 may output the recipe information as at least one of a voice and a character. For example, the output unit 230 may be implemented as a display device, a speaker, or the like to provide recipe information to a user.

The guide unit 240 may generate a guide message (e.g., information necessary for the user to cook, etc.) based on the recipe information. The generated guide message may be provided to the user through the output unit 230. For example, the guide unit 240 may generate a message for the user to input the material into the cooking container, or may determine whether the weight of the loaded material is proper, and generate a message including the determination result. For example, when the guide unit 240 outputs the recipe information through the output unit 230 (for example, when "output 500 g of water into the cooking container" is output), the weight measuring unit 160) to generate a guide message based on the change in pressure measured (e.g., "450 grams of water has been added, such as 50 grams more").

On the other hand, when all the materials are put into the material container according to the recipe information, the automatic cooking module 180 can switch from the normal mode (or the guide mode) to the automatic cooking mode and automatically perform the cooking. For example, the automatic cooking module 180 provides the cooking temperature and the cooking time included in the recipe information to the power control unit 150, and the power control unit 150 controls the power supply unit 140 based on the cooking temperature and the cooking time. Can be controlled.

As described with reference to FIGS. 1 and 2, the electric induction 100 is used to measure the weight of the cooking vessel and the material measured through the weight measuring unit 160, the vibration of the cooking vessel measured through the vibration sensor unit 170, The power supplied to the coil part 130 can be automatically controlled based on the power supplied to the coil part 130. [ In addition, the electric induction 100 can further facilitate the user's cooking operation by using the automatic cooking module 180 that inputs, stores, and outputs the recipe information.

On the other hand, the electrical induction 100 includes asymmetrically arranged coils and can improve the power efficiency of the electrical induction 100 through the individual operation of the coils and the position control of the coils.

FIG. 3A is a view showing a comparative example of the coil part included in the electric induction of FIG. 1B, FIG. 3B is a view showing an example of the coil part included in the electric induction of FIG. 1B, FIG. 4B is a view for explaining a change in position of the coil part according to the operation of the rotation driving module of FIG. 4A, FIG. 5A is a view showing an example of the rotation driving module included in the electric induction of FIG. FIG. 5B and FIG. 5C are views for explaining the contents of the electric induction of FIG. 1B controlling the position of the firebox. FIG.

First, referring to FIG. 3A, a coil portion included in a general electric induction is shown. The coil portion may include three comparison coils (C1, C2, C3) having concentric axes and having different radii. Unnecessary power consumption can be prevented by operating only the first comparison coil C1 or operating the first and second comparison coils C1 and C2 according to the size of the cooking vessel.

However, the general electric induction assumes that the cooking vessel is arranged accurately with respect to the center axis of the comparison coils C1, C2, and C3, but the user does not carefully judge whether or not the cooking vessel is correctly arranged, Since the electric induction does not have a separate cooking vessel holding member or the like, the cooking vessel is not arranged in the center axis on the comparison coils C1, C2 and C3.

Accordingly, the electric induction 100 according to the embodiments of the present invention includes a plurality of coils having mutually different central axes, and by rotating the plurality of coils, the central axis of the coils coincides with the central axis of the cooking vessel, The efficiency can be further improved.

Referring to FIG. 3B, the coil part 130 may include a first coil 310, a second coil 320, and a third coil 330.

The first coil 310 may have a circular plate shape having a first radius and may be disposed adjacent to a lower surface of the upper panel unit 120. For example, the first coil 310 may have a first radius of 6 cm (or 12 cm in diameter).

The second coil 320 has a ring shape having a second radius larger than the first radius and has a second central axis AXIS2 different from the first central axis AXIS1 of the first coil 310, 1 coils 310, respectively. For example, the second coil 320 may have a second radius (or a diameter of 18 cm) of 9 cm, and the second center axis AXIS2 may have a first distance AXIS2 with respect to the first center axis AXIS1 D1) (e.g., 2 cm). Since the first and second coils 310 and 320 and the third coil 330 rotate independently of each other, the second center axis AXIS2 is positioned with respect to the first center axis AXIS1 Can be changed.

The third coil 330 has a ring shape having a third radius larger than the second radius and has a third central axis AXIS3 different from the first central axis AXIS1 and the second central axis AXIS2, 2 coils 320. In addition, For example, the third coil 330 may have a third radius (or a diameter of 24 cm) of 12 cm, and the third center axis AXIS3 may have a second distance D2) (for example, 2 cm).

Meanwhile, the power supply unit 140 may supply first to third powers to the first to third coils 310, 320, and 330, respectively. That is, the first to third coils 310, 320, and 330 may operate independently of each other.

4A, the electric range 310 may further include a rotation driving module 400 for supporting and rotating the first through third coils 310, 320, and 330. The rotation driving module 400 may include a first rotation plate 410, a first rotation driving part 420, a second rotation plate 430 and a second rotation driving part 440.

The first rotating plate 410 has a fourth radius that is greater than or equal to the second radius of the second coil 320 and less than the third radius of the third coil 330 (e.g., a radius that is substantially the same as the second radius 9 cm), and the first coil 310 and the second coil 320 can be supported and fixed.

The first rotation driving part 420 is disposed on the lower surface of the first rotation plate 410 and has the same central axis as the second central axis AXIS2 of the second coil 320 to rotate the first rotation plate 410 . For example, the first rotation driving part 420 includes a first rotation shaft having the same central axis as the second central axis AXIS2, a first driving motor for generating a rotation power, a second rotation shaft for transmitting rotation power to the first rotation shaft, And the like.

The second rotating plate 430 has a cylindrical shape with a fifth radius (e.g., 12 cm, with a radius substantially equal to the third radius) greater than or equal to the third radius of the third coil 330, The first rotating plate 410, the first rotation driving part 420, and the third coil 330 can be supported and fixed. That is, the first rotating plate 410 can rotate based on the second rotating plate 430.

The second rotation driving part 440 is disposed on the lower surface of the second rotation plate 430 with a center axis that is the same as the third central axis AXIS3 of the third coil 330, . Similarly to the first rotation driving unit 420, the second rotation driving unit 440 may include a second rotation shaft, a second driving motor, a gear, and the like.

4B, when the first rotating plate 410 is rotated in a state where the second rotating plate 430 is fixed, the first central axis AXIS1 of the first coil 310 rotates in the first area AREA1).

On the other hand, when the first rotating plate 430 and the first rotating plate 410 rotate simultaneously, the first central axis AXIS1 of the first coil 310 can move within the second area AREA2.

Therefore, even if the central axis of the cooking vessel is not located at a specific position, the electric induction 100 can improve the power efficiency by matching the first central axis AXIS1 of the first coil 310 to the central axis of the cooking vessel .

Referring to FIG. 5A, the electric induction 100 further includes a distance measuring module 500, and the distance measuring module 500 can calculate the size of the cooking container and the center of the area of the cooking container.

The distance measurement module 500 may further include distance sensors 511 to 514 and a calculation unit (not shown).

The distance sensors 511 to 514 are arranged at the upper edge of the upper panel part 120 with a mutual isointensity with respect to one of the first to third central axes AXIS1 to AXIS3, 120 to the cooking vessel (PAN) located thereon.

5A, the distance measurement module 500 includes first to fourth distance sensors 511 to 514, and the first distance sensor 511 is disposed in a second direction of the upper panel part 120 The second distance sensor 512 is positioned at the edge of the upper panel unit 120 in the first direction D1 and the third distance sensor 513 is located at the edge of the second panel unit D2, And the fourth distance sensor 514 may be positioned at the opposite edge of the upper panel unit 120 in the second direction D2.

5A, the electric induction 100 (or the distance measurement module 500) is connected to the first to fourth distance sensors 511 (or 511), as shown in FIG. 5B, when the cooking container PAN is placed as shown in FIG. The size and the center of gravity of the cooking container PAN can be calculated based on the first to fourth distances L1 to L4 measured through the first to fourth distances L1 to L4. Here, the center of gravity of the cooking vessel PAN may be expressed on a coordinate system having the third central axis AXIS3 of the third coil 330 as a reference point.

For example, the size of the pan (PAN) measured in the calculator is 15 cm in diameter and the center of gravity of the first pan (PAN) is the (x, y) coordinate value (e.g., The diameter of the first coil 310 may be 12 cm, and the diameter of the second coil 320 may be 18 cm.

In this case, the electric induction 100 (or the drive control unit included in the electric induction 100) may determine that only the first coil 310 is operated in consideration of the size of the cooking pot (PAN). The electric induction (or the drive control unit) controls the first rotation angle A1 of the first rotation plate 410 based on the size of the cooking pan (PAN) and the area center (i.e., coordinate value) And the second rotation angle A2 of the second rotation plate 430 can be calculated and determined.

Referring to FIG. 5C, for example, the electric induction (or the drive control section) may include a first area AREA1 (for example, a circle having a diameter of 2 cm) described with reference to FIG. And the coordinates of the center point of the first area AREA1 are calculated (for example, (-1, 0)) in this case, The second rotation angle A2 of the second rotary plate 430 is determined (for example, 90 degrees in the clockwise direction) based on the center point of the first area AREA1 and the center point of the first area AREA1, The first rotational angle A1 of the first rotating plate 410 can be determined (for example, 45 degrees in the clockwise direction).

In this case, the rotation drive module 400 may rotate the first and second rotation plates 410 and 430 based on the first rotation angle A1 and the second rotation angle A2, respectively. Therefore, since the first central axis AXIS1 of the first coil 310 is aligned with the center axis of the cooking vessel PAN, the electric efficiency of the electric induction 100 can be improved.

As described with reference to FIGS. 3A through 5C, the electrical induction 100 includes asymmetrically arranged coils, and by separately driving the coils and adjusting the position of the coils, the power efficiency of the electrical induction 100 Can be improved.

6A and 6B are views showing an example of an upper panel part included in the electric induction of FIG. 1B.

Referring to FIGS. 1B, 6A and 6B, the upper panel part 120 is protruded from the upper surface to support the cooking cavity PAN, (PR). The protrusions PR may have a thickness of several mm and may be repeatedly arranged with an equal interval or an equal angle in the cooking region (for example, the region where the first to third coils 310 to 330 are arranged) .

When the bottom surface of the cooking pan PAN is in contact with the upper surface of the upper panel unit 120 and is heated and water or foreign matter is present on the bottom surface of the cooking pan PAN, The cooking vessel (PAN) may bounce or move. Therefore, the electric induction 100 can prevent the occurrence of safety accidents due to moisture or the like on the bottom surface of the cooking container (PAN) by forming the protrusions PR in the cooking area of the upper panel part 120.

The present invention can be applied to an electric range, an electric heating apparatus, and the like.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. It will be understood that the invention may be varied and changed without departing from the scope of the invention.

100: electric induction 110:
120: upper panel part 130: coil part
140: Power supply unit 150: Power control unit
160: weight measuring unit 170: vibration sensor unit
180: automatic cooking module 210: input part
220: Recipe storage unit 230: Output unit
240: guide portion
310, 320, 330: first to third coils
400: rotation drive module 410: first rotation plate
420: first rotation driving part 430: second rotation plate
440: second rotation driving part 500: distance measuring module
511 to 514: First to fourth distance sensors

Claims (8)

In the electric range,
A main body portion including a storage space therein;
An upper panel part coupled to the body part;
A first coil having a circular plate shape and disposed adjacent to a lower surface of the upper panel portion, the first coil having a circular plate shape having a first radius and disposed adjacent to a lower surface of the upper panel portion, And a second coil disposed on an outer periphery of the first coil and having a second central axis different from the first central axis of the first coil, and a second coil having a third radius larger than the second radius, And a third coil having a third central axis different from the first central axis and the second central axis and disposed at an outer periphery of the second coil;
A power supply unit for supplying power to the coil unit and supplying first to third powers to the first to third coils, respectively;
A weighing part disposed between the main body part and the upper panel part and measuring pressure applied through the upper panel part;
A vibration sensor unit disposed on a lower surface of the upper panel unit for measuring vibrations of the upper panel unit;
A power controller for controlling the power supply unit based on the pressure measured by the weight measuring unit and the vibration measured by the vibration sensor unit;
A first rotating plate having a cylindrical shape having a fourth radius that is greater than or equal to the second radius and less than the third radius and which supports the first coil and the second coil;
A first rotation driving unit disposed on a lower surface of the first rotation plate with the second central axis and rotating the first rotation plate;
A second rotating plate having a cylindrical shape having a fifth radius greater than or equal to the third radius and supporting the first rotating plate, the first rotation driving portion, and the third coil; And
And a second rotation driving unit disposed on a lower surface of the second rotation plate with the third central axis for rotating the second rotation plate.
The method according to claim 1,
An input unit for receiving recipe information from a user or from outside;
A recipe storage unit for storing the recipe information; And
And an output unit outputting the recipe information as at least one of a voice and a character,
Wherein the power control unit controls the power supply unit based on the cooking temperature and the cooking time included in the recipe information.
3. The method of claim 2,
Further comprising a guide unit for generating a guide message based on a change in the pressure during the output of the recipe information through the output unit,
Wherein the output unit outputs the guide message as at least one of voice and characters.
delete delete The method according to claim 1,
And measuring the distances to the cooking pan located on the upper panel portion at an edge of the upper surface of the upper panel portion with a mutual isointensity with respect to one of the first to third central axes A plurality of distance sensors; And
Further comprising a calculating unit for calculating a size of the cooking vessel and an area center of the cooking vessel based on distances measured by the distance sensors.
The method according to claim 6,
Further comprising a drive control section for calculating a first rotation angle of the first rotation plate and a second rotation angle of the second rotation plate on the basis of the size of the cooking container and the center of the area of the cooking container, .
The apparatus according to claim 1,
And projections formed on the upper surface to support the pan and form a fluid movement path with the cooking vessel.

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