KR101181618B1 - Heating cooker having heating position guide part - Google Patents

Abstract

Heating cooker according to the present invention, the heating unit for heating the cooking utensils; And a heating position guide portion disposed around the upper portion of the heating portion and configured to easily position the cooking utensil in a heating position when the cooking utensil is positioned on the heating portion, wherein the heating position guide portion is a cooking utensil when the cooking utensil is positioned at the heating position. Characterized by having a seating inner surface that changes the contact area in contact with the side of the cookware according to the size of the.

Description

Heating cooker having heating position guide part {Heating cooker having heating position guide part}

The present invention relates to a heating cooker such as an electric range, a gas range, etc., which can cook food by heating food, and more particularly, when a person with low vision or hand movement, such as a visually impaired or a physically handicapped person, prepares food. The present invention relates to a heating cooker capable of easily positioning a cooking utensil such as a pot in a heating position.

In general, in a heating cooker, for example, an electric range, a flat plate made of a nonmagnetic material such as a heat-resistant glass is attached to a heating element made of a heating coil, and a circular line indicating a heating position of a cooking utensil such as a pan is attached to the top plate. It is printed almost the same as or slightly larger than the outer diameter of this heating element. Therefore, when cooking food, cooking utensils containing food is heated in a circular line.

However, in the conventional electric range, since the circular line indicating the heating position of the cooking utensils is simply printed on the top plate and visually recognized, there is no problem when a normal person cooks food, When people cook with food, such as people with low vision or inconvenient hand movements, such as people with physical disabilities, it is difficult to accurately place the cooking utensils in a circular line.

In addition, the heating range of the heating element is wider than the bottom area of the cooking utensils in order to prevent unnecessary heat generation occurs, the conventional electric range is provided with a plurality of heating elements of different sizes to select and use according to the size of the cooking utensils As a result, a plurality of circular lines indicating heating positions of the cooking utensils may be printed on the upper plate. However, even in this case, the visually impaired or impaired movement of the hand, such as visually impaired, physically handicapped, and the like, because the visual ability or athletic ability is inferior, there is a problem that it is difficult to accurately place the cooking tools in the circle. In particular, in this case, a person with very low vision needs to sense and know the positions of the circular lines and the positions of the operation switches for the heating elements corresponding thereto, so that the use of the electric range becomes more inconvenient.

The present invention has been made to solve the problems as described above, one object of the present invention is to prepare a cooking utensil such as a pot when a person with poor vision or hand movement, such as a visually impaired, physically handicapped, when cooking food It is to provide a heating cooker having a heating position guide portion that can be easily positioned in the heating position.

Another object of the present invention is to provide a heating cooker having a heating position guide portion which enables the heating unit to be driven to automatically sense the size of the cooking utensil and heat the corresponding heating area when the cooking utensil is positioned at the heating position. There is.

According to an embodiment of the present invention for achieving the above object, the present invention, a heating unit for heating the cooking utensils; And a heating position guide portion arranged around the upper portion of the heating unit and positioning the cooking utensils in the heating position of the heating unit when the cooking utensil is positioned on the heating unit. Provided is a heating cooker having a seating inner surface in which the contact area and / or the point of contact with the side of the cooking utensil change depending on the size of the tool.

The heating position guide portion may be a V-shaped hollow pipe.

At this time, the seating inner surface is a first seating surface in contact with a portion or a portion of one side of the cooker of the smaller size or less than the preset small size when the cookware of the predetermined small size or less is located in the heating position, and each of the first seating surface It may be provided with second and third seating surfaces connected to both ends of and in contact with a portion or a portion of one side of the cookware having a smaller size or larger than the preset small size, respectively, when the cookware having the predetermined small size or larger is positioned at a heating position. have. The first seating surface may be arc-shaped, and the second and third seating surfaces may be straight or complex arcs.

In addition, in order to heat the cooking utensils by varying the heating area according to the size of the cooking utensils, the heating unit includes a plurality of heating elements, the heating cooker comprises a sensor unit having at least one sensor for detecting the cooking utensils, and The controller may further include a controller configured to selectively drive the plurality of heating elements according to the generated signal.

The plurality of heating elements are selectively driven by the control unit to selectively heat the plurality of heating areas of different sizes. In this case, the heating cooker may further include a top plate attached to the plurality of heating elements and formed with a heating position display line corresponding to the plurality of heating areas.

The sensor may be configured of a plurality of touch switch sensors or at least one ultrasonic sensor installed on the inner surface of the seat so that the cooking utensils can be detected when the cookware contacts the seating inner surface.

The controller may determine the size of the cooking utensil according to the position of the sensor generating the signal or the distance from the cooking utensil measured by the sensor, and control to selectively drive the plurality of heating elements according to the determined size of the cooking utensil.

In addition, the heating cooker according to the present invention may further include a control switch having a triangular shaped protrusion knob disposed so that the vertex points toward the heating level scale and operates the heating unit. At this time, the heating level scale may be formed in the form of protruding points.

As described above, the heating cooker having the heating position guide unit according to the present invention has a seating area in contact with the side of the cooking utensil and / or the point of contact point depending on the size of the cooking utensil when the cooking utensil is placed on the heating element. And a heating position guide portion having an inner surface to easily position the cooking utensils in the heating position. Therefore, even when a person with low vision or hand movement, such as a visually impaired or a handicapped, cooks food, the cooking utensils can be easily and accurately positioned at a heating position.

In addition, the heating cooker having a heating position guide according to the present invention includes a sensor for detecting the cooking utensil when the side of the cooking utensil is seated on the seating inner surface, selectively selecting a plurality of heating elements in accordance with signals generated from the sensors Control it to work. Therefore, the cooking cooker of the present invention is a cooking tool without the need to operate a plurality of heating areas and the corresponding operation switches for the heating elements corresponding to each other in order to selectively heat a plurality of heating areas of different sizes as in the prior art. When positioned and seated at a heating position, the size of the cooking utensil is automatically sensed, and the heating elements constituting the corresponding heating area can be driven automatically according to the detected size of the cooking utensil. As a result, even those with low vision or hand movement can easily and easily use the cooker.

1 is a perspective view illustrating a heating cooker having a heating position guide unit according to an embodiment of the present invention;
2 is a block diagram illustrating an operation relationship of a control unit of the heating cooker shown in FIG. 1;
3 is a partial cross-sectional view illustrating a coupling relationship of a main body, a top plate, and a heating unit of the heating cooker shown in FIG. 1;
4 is a plan view illustrating a heat generating unit of the heating cooker shown in FIG. 1;
5 is a partial perspective view illustrating a modification of the sensor unit of the heating position guide unit of the heating cooker shown in FIG. 1, and
6A to 6C are perspective views illustrating the operation of the heating cooker shown in FIG. 1.

Hereinafter, a heating cooker having a heating position guide unit according to embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, referring to FIG. 1, a heating cooker 100 having a heating position guide part 10 according to an embodiment of the present invention is schematically illustrated.

The heating cooker 100 is, for example, an electric range using a heating element made of a heating coil, and is composed of a main body 40, a top plate 45, and first and second heating cookers 101a and 101b.

The main body 40 is a case of a rectangular parallelepiped shape with an upper opening, and an upper plate supporting frame 50 is installed at an upper edge of the opening.

The top plate 40 is formed in a flat plate shape made of a nonmagnetic material such as, for example, heat-resistant glass, and is attached to the top plate supporting frame 50 and installed on the top of the main body 40 as shown in FIG. 3.

The first and second heating cooking units 101a and 101b are disposed on the left and right sides of the upper plate 40, respectively. Since the first and second heating cooking units 101a and 101b have the same configuration except that they are symmetrically arranged on the left and right sides, only the first heating cooking unit 101a disposed on the right side of the upper plate 40 will be described here. Let's do it.

The first heating cooking unit 101a includes a heating unit 2 (see FIGS. 2 to 4), a heating position guide unit 10, and a switch unit 35.

The heat generating unit 2 is for heating cooking utensils such as a pot, and as shown in FIGS. 2 to 4, fixedly installed on an upper surface of the insulating support 47 provided in the main body 40, for example, It is composed of at least one heating element (3, 4, 5, 6, 7, 8, and / or 9) consisting of a heating coil 48 wound in a zigzag shape or a vortex shape.

Referring to FIG. 1, the heating position display line 49 of the heat generating unit 2 is printed on the upper right side of the upper plate 45.

The heating position display line 49 may be configured in plural to display heating positions which are previously divided according to the size of the cooking utensils used when using different cooking utensils. In this embodiment, the heating position indicator lines 49 are the first, second and third heating position indicator lines 49a, 49b, 49c which indicate the heating positions of the small, medium and large cookware set in advance. It is composed.

 The first to third heating position display lines 49a, 49b, and 49c are respectively selected by the first to seventh heating elements 3, 4, 5, 6, 7, 8, and 9 of the heating unit 2, which will be described later. It is formed in a circular shape corresponding to a plurality of, for example, the first to third heating areas 52, 53, 54 which are heated in advance.

In more detail, the first heating position indicator line 49a is printed in a circular shape corresponding to the first heating area 52 preset in order to heat a small-sized cooking utensil (not shown), and the second heating position. The display line 49b is printed in a circular shape corresponding to the second heating area 53 preset for heating the medium size cooking utensil 34 (see FIGS. 6A to 6C), and the third heating position display line 49c. Is printed in a circular shape corresponding to the preset third heating area 54 for heating a large cookware (not shown).

In order to selectively heat the first to third heating areas 52, 53, and 54 described above, in the present embodiment, the heat generating unit 2 is selectively driven by the control unit 60, which will be described later, so that the upper plate 45 is provided. It may be composed of the first to seventh heating element (3, 4, 5, 6, 7, 8, 9) for heating the cooking utensils located above. At this time, the first to seventh heating elements (3, 4, 5, 6, 7, 8, 9) are independently disposed so as not to cross each other, as shown in FIG. In addition, the first to fifth heating elements 3, 4, 5, 6 and 7 are formed to be wound in a zigzag shape, and the sixth and seventh heating elements 8 and 9 are formed to be wound in a swirl shape.

2 and 4, the first heating area 52 for heating a small-sized cooking utensil may include a sensor unit of the heating position guide unit 10 as described below. When it is determined that the cooking utensil is of a small size in accordance with the signal from 65, it is heated by the first to third heating elements 3, 4, and 5 simultaneously driven by the controller 60.

The second heating area 53 for heating the medium-sized cooking utensils 34 is the cooking utensils 34 (see FIGS. 6A to 6C) according to a signal from the sensor unit 65 as described later. ) Is heated by the second to sixth heating elements 4, 5, 6, 7 and 8 simultaneously driven by the controller 60 when it is determined to be a medium size.

The third heating area 54 for heating a large cookware is simultaneously driven by the controller 60 when the controller 60 determines that the cookware is a large size according to a signal from the sensor unit 65. Heated by the third, sixth and seventh heating elements 5, 8, and 9.

In the above, the heat generators 2 are disposed independently of each other so as not to cross each other, and the first to seventh heating elements 3, 4, 5, 6, and 7 to heat the first to third heating areas 52, 53, and 54. , 8, 9), but the present invention is not limited thereto. For example, the heat generating units (not shown) may also be composed of three heat generating elements (not shown) disposed corresponding to the first to third heating areas 52, 53, and 54 so as to cross each other but to be insulated from each other. There will be.

In addition, although the first to fifth heating elements 3, 4, 5, 6, and 7 are formed in a zigzag shape, the sixth and seventh heating elements 8 and 9 are illustrated and described as being formed in a vortex shape, but the present invention Is not limited to this, and some or all of the first to seventh heating elements (3, 4, 5, 6, 7, 8, 9) are zigzag, vortex or other within the range that does not reduce the heating efficiency. It may optionally be formed into a shape.

The heating position guide part 10 is to position the cooking utensils in the heating position of the heating part 2 when the cooking utensils are placed on the upper plate 45 on the heat generating part 2, and heats up on the upper plate 45. It is arranged around the part 2. In the present embodiment, the heating position guide portion 10, as shown in Figure 1, the V-shaped hollow pipe 11 of insulating material fixed to the upper plate 45 in the form of the bottom vertex curved and the upper ends are bent. May be).

The V-shaped hollow pipe 11 has a seating inner surface 13 in which a contact area and / or a point of contact with the side of the cookware change depending on the size of the cookware.

The seating inner surface 13 may include a first seating surface 13a in contact with a portion of the rear surface of the cookware of the smaller size or smaller or one point of the rear side when the cooker of the smaller size or smaller is positioned at the heating position, and Each of which is connected to both ends of the first seating surface 13a, and is in contact with a portion or a point of the rear surface of the cookware of the smaller size or more preset when the cookware of the small size or more that is smaller than the preset small size is positioned at a heating position. Second and third seating surfaces 13b and 13c may be provided.

In the present embodiment, as shown in Fig. 1, the first seating surface 13a has an arc shape, and the second and third seating surfaces 13b, 13c are formed in a straight line shape. In this case, optionally, the second and third seating surfaces 13b and 13c may be formed in the shape of a compound arc corresponding to an arc connecting the outer portions of the second and third heating position display lines 49b and 49c.

When the rear side of the cookware is positioned in the heating position in contact with the seating inner surface 13 and is seated, the corresponding first to third heating areas 52, 53, 54 are automatically selected according to the size of the cookware seated. In order to be heated as, the heating cooker 100 according to an embodiment of the present invention may further include a sensor unit 65 and the control unit 60.

1 and 2, the sensor unit 60 is installed in the V-shaped hollow pipe 11 of the heating position guide portion 10, the rear side of the cooking utensil is to be seated on the seating inner surface (13) At least one sensor 66, 67, 68 for detecting the cooking utensils. The sensors 66, 67, and 68 are installed on the seating inner surface 13 so that when the cookware contacts the seating inner surface 13, the side of the cooker in contact with the seating inner surface 13 can be sensed.

In this embodiment, the sensor unit 60 comprises a plurality of, for example, 17 contact switch sensors 66, 67, 68 provided on the first, second and third seating surfaces 13a, 13b, 13c. Can be formed. In more detail, five first contact switch sensors 66 are disposed at a predetermined interval on a portion of the first seating surface 13a corresponding to the first heating position display line 49a, and the second heating position display line ( Three second contact switch sensors 67 are disposed at a predetermined interval on a portion of the second seating surface 13b and a portion of the third seating surface 13c corresponding to 49b), and a third heating position indicator line ( Three third contact switch sensors 68 are disposed at predetermined intervals on the portion of the second seating surface 13b and the portion of the third seating surface 13c corresponding to 49c.

As shown in FIG. 2, the control unit 60 generates a plurality of heating elements 3 and 4 according to a signal generated by the contact switch sensors 66, 67, and 68 when the switch unit 35, which will be described later, is 'on'. , 5, 6, 7, 8, 9) to selectively operate. To this end, the control unit 60 includes a microprocessor 62 and a current supply unit 63 mounted on a control board 61 (see FIG. 3) installed in the main body 40. The contact switch sensors 66, 67, 68 are electrically connected to the microprocessor 62 of the control board 61 via wires arranged to pass through the hollow space of the V-shaped hollow pipe 11.

The microprocessor 62 judges the size of the cooking utensils into three sizes of small, medium, and large sizes described above according to the position of the contact switch sensors 66, 67, and 68 that generate a signal. The first to third heating elements 3, 4, 5, and the second to sixth heating elements to heat the first, second or third heating areas 52, 53, or 54 corresponding to the sizes of the cookware. (4, 5, 6, 7, 8) or, the current supply unit 63 is controlled to selectively drive the third, sixth and seventh heating elements 5, 8, and 9.

The current supply unit 63 may include the first to third heating elements 3, 4, and 5, the second to sixth heating elements 4, 5, 6, 7, 8, or the third heating element under the control of the microprocessor 62. By selectively supplying power to the third, sixth and seventh heating elements 5, 8, and 9, the first to third heating elements 3, 4, 5, and the second to sixth heating elements 4, 5, 6, 7 , 8), or selectively drive the third, sixth and seventh heating elements 5, 8, and 9;

In addition, the microprocessor 62 is the first, second or third heating corresponding to the size of the cooking utensils determined above according to the heating level of the heating unit 2 is adjusted by the switch unit 35 as described later Area 52, 53, or 54, that is, the first to third heating elements 3, 4, 5, the second to sixth heating elements 4, 5, 6, 7, 8, or the third, second, The temperatures of the sixth and seventh heating elements 5, 8, and 9 can be controlled.

In more detail, the microprocessor 62 may include the first to third heating elements 3, 4, 5, and second to third heating the first, second, or third heating areas 52, 53, or 54. After driving the sixth heating element (4, 5, 6, 7, 8) or the third, sixth and seventh heating elements (5, 8, 9), the upper side of the insulating support 47 (see Fig. 3) The temperature value detected from the corresponding temperature sensor 71, 72, or 73 disposed at a position corresponding to the first, second, or third heating area 52, 53, or 54 is adjusted by the switch 35. Compare with heating level. As a result of the comparison, when the temperature value sensed by the temperature sensor 71, 72, or 73 matches the heating level controlled by the switch unit 35, the first to third heating elements 3, 4, 5, and second If the driving of the sixth to sixth heating elements (4, 5, 6, 7, 8) or the third, sixth and seventh heating elements (5, 8, 9) is stopped, and the first to third heating elements are not matched, (3, 4, 5), the second to sixth heating elements (4, 5, 6, 7, 8), or the third, sixth and seventh heating elements (5, 8, 9) are continuously driven.

In the above, the sensor unit 65 is illustrated and described as being formed of a plurality of contact switch sensors 66, 67, and 68 installed on the first, second, and third seating surfaces 13a, 13b, and 13c. Is not limited to that. For example, as shown in FIG. 5, the sensor unit 65 ′ may be configured of one ultrasonic sensor 66 ′ installed on the first seating surface 13a. At this time, the microprocessor 62 of the control unit 60 is measured by the ultrasonic sensor 66 'when the cooking utensil is guided by the seating inner surface 13 of the V-shaped hollow pipe 11 and positioned at the heating position. The distances S0, S1, S2 from the ultrasonic sensor 66 ′ to the side of the cookware, ie, the ultrasonic sensor 66 ′ transmits ultrasonic pulses to the rear side of the cookware and is then reflected and received from the rear side. The size of the cooking utensils may be determined based on the size of the cooking utensils in three stages of the small, medium and large sizes described above, and the first, second or third heating areas 52, 53, Or the first to third heating elements 3, 4, 5, the second to sixth heating elements 4, 5, 6, 7, 8, or the third, sixth and seventh heating elements to heat 54). Control (5, 8, 9) to operate selectively.

The switch unit 35 is for setting and adjusting the heating level of the heat generating unit 2, and is composed of an adjustment switch 37 provided at the front right corner of the upper plate 45. In the present embodiment, the control switch 37 may each be a push type switch that adjusts the heating level of the heat generating section 2 by turning on and rotating by pressing for safety.

In addition, in order to enable a person with very low vision, such as a visually impaired person, to adjust the heating level of the heating part 2 only by the tactile sense, the control switch 37 has a triangle arranged so that each vertex faces the heating level scale 38. It is preferable that the protrusion knob 37a is provided, and the heating level scale 38 is formed in the form of a protruding point.

In the above, the heating cooker 100 according to an embodiment of the present invention has been illustrated and described as an electric range, the present invention can be applied to the same configuration and principle in the gas range in addition to the electric range. In this case, the heat generating unit (not shown) may be composed of the first to seventh heating elements 3, 4, 5, 6, 7, 8 and 9 corresponding to the first to third heating areas, instead of the first to seventh heating elements. It is composed of three gas burners of different sizes or positions corresponding to the third heating area, and the first to third cooking utensil support holes may be disposed on the upper plate instead of the first to third heating position indicator lines.

In addition, the heating cooker 100 according to an embodiment of the present invention has been illustrated and described that the heating elements 3, 4, 5, 6, 7, 8, and 9 of the heating unit 2 are heating coils. In addition to the heating coil, an Ultra Film-Heater (UF-heater) is formed by coating a heating material on the bottom of the ceramic plate corresponding to the heating area and forming a wiring to apply power to both ends of the coated heating material. It may also be composed of a plate-like heating element (not shown), or an electromagnetic induction coil (not shown) wound in the form of a plurality of vortices within the range of the heating area.

Referring to Figures 6a to 6c the operation of the heating cooker 100 according to an embodiment of the present invention configured as described above are as follows.

In the following description, a person with very low vision (hereinafter, referred to as a 'user'), such as a visually impaired person, may use a cooking tool 34 such as a medium-sized pan to heat the heating unit 2 of the first heating unit 101a. It is assumed to be positioned at the heating position of.

First, as shown in Figure 6a, the user grabs the handle of the cooking utensils 34 containing the food to be cooked, put the cooking utensils 34 on the top plate 45, and then using the sense cooking utensils 34 To the mounting inner surface 13 of the V-shaped hollow pipe (11) in the direction of the arrow.

As a result, as shown in FIG. 6B, since the cooking utensil 34 has a V-shaped shape in which the V-shaped hollow pipe 11 is open at one side, the rear side faces of the second and third seating surfaces 13b, The bottom surface is moved into the second heating position indicator line 49b corresponding to the second heating area 53 for heating the medium cookware 34 while being guided in contact with 13c).

Thereafter, when the cooking utensil 34 is completely in contact with the second and third seating surfaces 13b and 13c and is no longer pushed in the direction of the arrow, the cooking utensil 34 is positioned in the second heating position indicator line 49b. do. As a result, six second contact switch sensors 67 are arranged in three portions of the second seating surface 13b and the third seating surface 13c respectively corresponding to the second heating position display line 49b. It is in contact with the back side of the tool 34.

Then, as shown in Fig. 6C, the user 'turns on' the adjustment switch 37 by holding and pressing the adjustment knob 37a of the adjustment switch 37, and then rotating the adjustment switch 37. The heating level of the heat generating unit 2 is adjusted. At this time, since the control switch 37 is provided with a triangular protrusion knob 37a and the heating level scale 38 is formed in the form of a protruding point, the user can easily turn on the control switch 37 only by tactile touch. In addition, the heating level of the heating unit 2 can be adjusted.

As the control switch 37 is 'on', all or at least part of the six second touch switch sensors 67 in contact with the rear side of the cooking utensil 34 generates a signal. When the signal is received from the second touch switch sensor 67, the microprocessor 62 recognizes that the position of the sensor generating the signal as described above, that is, the sensor generating the signal is the second touch switch sensor 67. The size of the cooking utensils 34 is determined to be medium, and the current supply unit 63 is controlled to heat the second heating area 53 corresponding to the cooking utensils 34 of the medium size. The six heating elements 4, 5, 6, 7, 8 are selectively driven. As a result, the area | region of the upper board 45 corresponding to the 2nd heating area 53 in the 2nd heating position display line 49b is heated.

In addition, the microprocessor 62 has the second to sixth heating elements until the temperature value measured by the temperature sensor 72 reaches the heating level of the heating unit 2 set and controlled by the control switch 37. The current supply unit 63 is controlled to continue driving (4, 5, 6, 7, 8).

This operation continues until the cooking of the food contained in the cooking utensil 34 is completed and the user 'offs' the control switch 37.

The operation of positioning the small cooking utensil or the large cooking utensil at the heating position of the heat generating unit 2 and heating them may include five first contact switch sensors 66 disposed on the first seating surface 13a, or Six third contact switch sensors 68 disposed three at each of the portions of the second seating surface 13b and the third seating surface 13c are operated. The first to third heating elements 3, 4 and 5 or the third, sixth and seventh heating elements to heat the third heating area 54 corresponding to the first heating area 52 or the cooking utensil of a large size. Except that 5, 8, and 9 are operated, the same operation as the above-described operation of heating the medium-sized cooking utensils 34 to the heating position is performed.

In the above, the present invention has been described and illustrated in connection with embodiments for illustrating the principle, but the present invention is not limited to the configuration and operation shown and described as such. In addition, it will be understood by those skilled in the art that various changes and modifications can be made to the present invention without departing from the spirit and scope of the appended claims. Accordingly, all suitable changes, modifications, and equivalents to the present invention should be considered to be within the scope of the present invention.

2: heating element 3, 4, 5, 6, 7, 8, 9: heating element
10: heating position guide 11: hollow pipe
13: Seating surface 13a, 13b, 13c: Seating surface
35: switch part 37: control switch
37a: Protrusion Knob 38: Heating Level Scale
40: main body 45: top plate
48: heating coil 49, 49a, 49b, 49c: heating position indicator line
52, 53, 54: heating area 60: control unit
62: microprocessor 65, 65 ': sensor unit
66, 66 ', 67, 68: Sensor 71, 72, 73: Temperature sensor
100: cooker

Claims (10)

Heating unit for heating the cooking utensils; And
A heating position guide part disposed around the heating part and positioned to position the cooking utensil at a heating position of the heating element when the cooking utensil is positioned on the heating element;
The heating position guide portion has a seating inner surface which at least one of the contact area and the contact point that is in contact with the side of the cooking utensil is changed according to the size of the cooking utensil when the cooking utensil is located in the heating position Cooker. The heating cooker according to claim 1, wherein the heating position guide portion comprises a V-shaped hollow pipe. The method of claim 1, wherein the seating inner surface,
A first seating surface in contact with a portion or a portion of one side of the preset small size cookware when the preset small cookware is positioned at the heating position; And
Respectively connected to both ends of the first seating surface and contacting a portion or a point of one side surface of the cookware having the smaller size or larger than the preset small size when the cookware having the predetermined small size or larger is located at the heating position; And a second seating surface. The method of claim 3,
The first seating surface comprises an arc shape,
Heating cooker, characterized in that the second and third seating surface comprises a straight form. The method of claim 1,
The heating unit includes a plurality of heating elements,
The heating cooker further comprises a sensor unit having at least one sensor for detecting the cooking utensils, and a control unit for controlling to selectively drive the plurality of heating elements according to a signal generated by the sensor. Cooker. The method of claim 5,
The plurality of heating elements are selectively driven by the control unit to selectively heat a plurality of heating areas of different sizes,
The heating cooker further comprises a top plate attached to the plurality of heating elements and formed with a heating position display line corresponding to the plurality of heating areas. The sensor of claim 5, wherein the sensor comprises one of a plurality of touch switch sensors and at least one ultrasonic sensor installed on the seating inner surface to detect the cookware when the cookware contacts the seating inner surface. Heat cooker characterized by. The method of claim 5, wherein the controller determines the size of the cooking utensil according to one of the position of the sensor for generating the signal and the distance between the cooking utensil measured by the sensor and the size of the determined cooking utensil The heating cooker characterized in that for controlling to drive the plurality of heating elements selectively. The heating cooker according to claim 1, further comprising a control switch which has a triangular protrusion protrusion disposed so that a vertex thereof faces a heating level scale and operates the heating unit. The heating cooker according to claim 9, wherein the heating level scale is formed in the form of a protruding dot.

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