JP5753044B2 - Cooker - Google Patents

Description

TECHNICAL FIELD The present invention relates to a cooking device such as a rice cooker, a mochi rice cooker, and a bread maker.

  In this type of cooker, a cooking pot for storing a cooked product is detachably housed in a housing portion of the cooker body. And a predetermined cooking is performed by heating an internal cooking item via a cooking pot by controlling the heating means arrange | positioned inside the cooking appliance main body according to the preset program.

  As the bottom part heating means for heating the bottom part of the cooking pan, an induction heating coil for induction heating the cooking pan by a high frequency magnetic field generated by energization of a current or a heating plate incorporating a heater is used. As this bottom heating means, one having a high output (for example, 1200 W) capable of obtaining a high heating power is used. Moreover, as a side part heating means which heats the side part of a cooking pan, the band heater which arrange | positioned the heater and the induction heating coil which induction-heats a cooking pan are used. This side heating means has a low output (for example, 50 W) lower than that of the bottom heating means in order to prevent the food from being burnt.

  In the cooking pan, a heated layer heated by heating means is formed on the surface of the pan body (base material). Patent Document 1 describes a rice cooker for an induction heating type rice cooker. This rice cooker has an aluminum outer body layer formed on the bottom surface of the pan body formed by pressing carbon, which is a carbon molded body, and a stainless steel material as a heated layer on the surface of the outer body layer. The magnetic layer is formed. An aluminum cover layer for preventing oxidation of the magnetic film is formed on the surface of the magnetic layer, and a coating layer made of an active resin material is formed on the surface of the cover layer.

  When a cooking pan provided with such a heated layer is heated by a heating cooker having a bottom heating means and a side heating means, it is possible to efficiently heat the entire pan and cook the cooked food.

  However, since the side heating means is disposed outside the housing portion, there is a problem that the actual heating amount of the cooking pan with respect to the output is low and the heating loss is large. In addition, if the thing with a large output of a side part heating means is used, it will be possible to obtain a required heating amount, but in this case, useless power consumption will increase. In addition, a predetermined gap is formed between the side wall of the housing portion and the cooking pan in consideration of usability when the cooking pan is attached and detached. Therefore, when heating by the side heating means is stopped, the heat of the cooking pan is released from the gap, and there is a disadvantage that condensation due to heat radiation occurs in the cooking pan.

  On the other hand, Patent Document 2 describes a rice cooker in which a step portion is provided at an intermediate position of the housing portion, and a side heating means is disposed on the outside (lower surface) of the step portion. In the rice cooker of this rice cooker, an annular projecting portion placed on the stepped portion is projected. Therefore, in this rice cooker, the intermediate area | region of a rice cooker can be heated efficiently via a protrusion. Further, in the state where the protrusion is placed on the stepped portion, a closed space is formed in the lower region of the accommodating portion, so that heat dissipation when the side heating means is stopped can be prevented.

  However, when providing the step part which receives a cooking pot in a accommodating part like patent document 2, not only the structure of a accommodating part will be complicated, but the design which considered the rigidity and precision of the step part will be needed. And when arrange | positioning a cooking pan in an accommodating part, since the protrusion which protruded largely from the side part interferes with the periphery of the upper end opening of an accommodating part, usability is bad.

JP 2007-167620 A JP-A-9-37993

An object of the present invention is to provide a cooking device with good usability that can be efficiently heated and also can suppress wasteful heat dissipation.

In order to solve the above-mentioned problem, the present invention detachably accommodates a bottomed cylindrical cooking pan having an open upper end in a housing portion, and a side portion in which a side surface portion of the cooking pan is disposed outside the housing portion. A heating cooker that heats the food contained in the cooking pan by heating by a heating means, and is heated in an annular shape that projects outwardly by spraying or painting on a side surface of the cooking pan. An inner portion so that the container is positioned at a predetermined interval on the outside of the heated portion of the cooking pan and at a position that coincides with the heated portion in the vertical direction or in the vicinity thereof. Protruding bulging portions are provided, the bulging portions of the housing portion are formed in an endless continuous annular shape, a side heater is disposed as the side heating means, and at least one of the side heaters. The heater wire along the ridge To provide a heating cooker which is set.

In this cooking pan, the heated portion is protruded outward on the side surface portion, so that the heated portion can be brought close to the side heating means. Moreover, since the heating cooker protrudes the protruding part inwardly, this protruding part can be brought close to the side part of the cooking pan, and the heated part can be brought close to the side heating means. Therefore, the heated portion can be efficiently heated by the side heating means, and heat can be transmitted to the food in the cooking pan.

Moreover, the clearance gap between these becomes small in the formation position of a to-be-heated part and a protruding part. Moreover, the raised portion is provided in an endless continuous annular shape at a position that coincides with the heated portion of the accommodated cooking pan in the vertical direction or in the vicinity thereof. Therefore, in the accommodating part, the heat insulation space which suppressed heat dissipation can be formed under the heated part. Therefore, dew condensation in the cooking pan can be prevented and the heat retaining performance can be improved.

Further, the side heating means is a side heater, and at least a part of the heater wire of the side heater is disposed along the raised portion. Therefore, the heat of the side heating means can be efficiently transmitted from the raised portion of the housing portion to the heated portion of the cooking pan. Further, since the heated portion is provided by thermal spraying or painting, it can be easily and reliably formed into an endless continuous annular shape.

The heated portion is made of a nonmagnetic material having good thermal conductivity. Or the said to-be-heated part consists of a metal with high heat storage property. If it does in this way, according to a side part heating means, a heated part can be raised in temperature reliably.

The cooker body that accommodates the cooking pan includes a bottom induction heating coil as a bottom heating means for heating the bottom surface of the cooking pan, and the cooking pan is induction-heated by the bottom induction heating coil. A heating layer is provided, and a second heated layer is provided as the heated portion on the surface of the first heated layer.

  In this invention, the to-be-heated part is protruded outward from a cooking pan, and the protruding part is protruded inward from the accommodating part. Therefore, a side part heating means and the side part of a cooking pan can be brought close. Therefore, the heated portion can be efficiently heated by the side heating means and transmitted to the cooking pan to heat the food. Moreover, since the clearance gap between a cooking pot and an accommodating part becomes small in the formation position of a to-be-heated part and a protruding part, the heat insulation space which suppressed heat dissipation can be formed in the lower side. Therefore, dew condensation in the cooking pan can be prevented and the heat retaining performance can be improved.

It is sectional drawing which shows the cooking pan and heating cooker of 1st Embodiment of this invention. It is a disassembled perspective view which shows a cooking pot and an accommodating part. (A) is the principal part expanded sectional view of FIG. 1, (B) is the principal part expanded sectional view of (A). It is a principal part expanded sectional view which shows the modification of a cooking pan and a heating cooker. It is a principal part expanded sectional view which shows the other modification of a cooking pan and a heating cooker. It is sectional drawing which shows the other modification of a cooking pot. It is a perspective view which shows the other modification of a cooking pot. It is sectional drawing which shows the cooking pan and heating cooker of 2nd Embodiment. It is a perspective view which shows the other modification of a heating cooker.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows a rice cooker 10 that is a heating cooker according to a first embodiment of the present invention. In this rice cooker 10, a cooking pot for a heating cooker (hereinafter referred to as “rice cooking pot”) 30 is detachably disposed in the accommodating portion 13 of the rice cooker main body 11, and the rice and water set in the rice cooking pot 30 are disposed. It is heated and cooked by the induction heating coil 19, the side heater 24, and a lid heater (not shown). And in this embodiment, while providing the heated part (2nd heated layer 39) which protrudes outward in the rice cooking pot 30, the protruding part 23 which protrudes inward is provided in the accommodating part 13, and heating efficiency and heat retention It is designed to improve efficiency.

  The rice cooker body 11 is provided with an opening for placing the rice cooker 30 on the shoulder 12 located at the top. A protective frame 14 having a saucer shape and an inner cylinder 21 having a cylindrical shape are disposed below the opening, and the accommodating portion 13 of the rice cooking pot 30 is formed by these.

  As shown in FIG. 2, the protective frame 14 is formed by injection molding a resin that is a non-conductive material. At the upper end of the protective frame 14, a guide portion 15 for arranging the inner cylinder 21 is provided. In addition, a boss portion 16 for connecting to the rice cooker body 11 is provided on the outer peripheral portion of the protective frame 14. Furthermore, the protective frame 14 is provided with a through hole 18 through which the detection part of the temperature sensor 17 for the pot that detects the temperature of the rice cooking pot 30 is passed. And the induction heating coil 19 which is the bottom part heating means which carries out induction heating of the bottom face part 31 side of the rice cooking pot 30 is arrange | positioned through the ferrite core 20 at the lower outer peripheral surface of the protective frame 14. FIG. The upper end of the induction heating coil 19 is located below the upper end of the curved portion 33 of the rice cooker 30, that is, the lower end of the side surface portion 32.

  The inner cylinder 21 is formed by processing iron or stainless steel, and has a cylindrical shape that is interposed between the protective frame 14 and the opening of the shoulder body 12. At the upper and lower ends of the inner cylinder 21, reinforcing portions 22 that are curled outward in the radial direction in order to maintain a cylindrical shape are provided. Further, the inner cylinder 21 is provided with a raised portion 23 which is bent so as to protrude inward. As shown to FIG. 3 (A), (B), the inner end part 23a of this protruding part 23 is with respect to the side part 32 (2nd to-be-heated layer 39) of the rice cooking pot 30 arrange | positioned in the accommodating part 13. As shown in FIG. It is provided so as to be positioned outside with a predetermined gap. The upper end of the raised part 23 is provided so that it may be located in the water level (scale 35a) at the time of cooking full rice with the rice cooking pot 30 arrange | positioned in the accommodating part 13. FIG. And the side heater 24 which is a side part heating means which heats the side part 32 of the rice cooking pot 30 is arrange | positioned at the outer peripheral surface of the inner drum 21. The side heater 24 is composed of a band heater in which a pair of heater wires 25a and 25b are arranged in parallel at a predetermined interval. Among them, the heater wire 25 b located on the lower side is disposed so as to be located on the raised portion 23.

  As shown in FIG. 1, a lid body 26 is disposed at the top of the rice cooker body 11 so as to be openable and closable. The lid 26 is provided with an inner lid 27 that seals the upper end opening of the rice cooker 30. Although not shown, the lid 26 has an exhaust passage communicating the inside of the rice cooker 30 with the outside, a lid heater which is an upper heating means for heating the upper space of the rice cooker 30, and the inside of the rice cooker 30. A lid temperature sensor, which is a second temperature detecting means for detecting the temperature, is provided.

  In this rice cooker 10, a microcomputer as a control means controls the heating means according to a preset program based on input values from the respective temperature sensors. Thereby, the cooked rice and water which are the cooking set in the rice cooker 30 are heated, and each process, such as preheating, inside-puffing, boiling maintenance, and unevenness, is performed and cooked (cooked).

  As shown in FIG. 2, the rice cooking pan 30 has a bottomed cylindrical shape that extends upward so that the bottom surface portion 31 has a substantially flat disk shape and the side surface portion 32 has a substantially cylindrical shape. Specifically, the side surface portion 32 has a shape having a cylindrical portion 32a positioned in the substantially upper half and a conical tube portion 32b having a diameter that is decreased in the downward direction and positioned in the approximately lower half. A curved portion 33 that is curved with a predetermined curvature is provided between the bottom surface portion 31 and the side surface portion 32. In addition, a positioning flange portion 34 that is bent outward in the radial direction is provided at the upper end of the rice cooker 30. Furthermore, the scale 35 which shows the amount of water (position) for every rice cooking capacity is provided in the inner surface side of the side part 32 by printing.

  As shown in FIG. 3, the rice cooking pan 30 includes a pan body formed by a predetermined method such as casting, molten metal forging, or deep drawing. The pan body of the present embodiment has a heat transfer layer 36 made of aluminum which is a nonmagnetic material having good thermal conductivity, and a first heated layer 37 made of stainless steel (SUS430) which is a magnetic material located on the outer surface thereof. Is formed by deep drawing. A second heated layer 39 is provided on the surface of the first heated layer 37, and a base coat layer 41 and a fluorine coat layer 42 are provided in order on the inner surface of the heat transfer layer 36.

  The first heated layer 37 is provided from the center of the bottom surface portion 31 to the positioning flange portion 34. The first heated layer 37 is heated by induction by an eddy current flowing from the opposed bottom surface portion 31 to the curved portion 33 by a magnetic field generated by flowing a high-frequency current through the induction heating coil 19.

  The second heated layer 39 is provided on the side surface portion 32 such that the second heated layer 39 is located on the radially inner side of the raised portion 23 of the inner trunk 21 in the arrangement state in the accommodating portion 13 and the heights in the vertical direction coincide with each other. Yes. The second heated layer 39 efficiently receives the heat of the side heater 24 and raises the temperature, and transmits the heat to the heat transfer layer 36 via the first heated layer 37. The second heated layer 39 of the present embodiment is formed by spraying (adhering) molten aluminum, which is a nonmagnetic material having good thermal conductivity, to the surface of the first heated layer 37. The second heated layer 39 has an endless continuous annular shape and is sprayed so as to protrude outward in the radial direction. The outer end 39a of the second heated layer 39 has a protruding amount such that the outer end 39a is located on the inner side with a predetermined gap with respect to the accommodating portion 13 (the raised portion 23) in a state of being disposed in the accommodating portion 13. Is provided.

  Here, the first heated layer 37 is exposed in the lower region of the second heated layer 39. And since the 1st to-be-heated layer 37 made from stainless steel is inferior in thermal conductivity, it is difficult to efficiently receive the heat of the side heater 24 and transmit it to the heat transfer layer 36. On the other hand, the lower part of the side surface portion 32 of the rice cooker 30 does not reach the magnetic field generated by the induction heating coil 19 and is difficult to induction heat. Therefore, in the side part 32 of the rice cooking pot 30 of this embodiment, the lower part (conical cylinder part 32b) of the 2nd to-be-heated layer 39 becomes the non-heating area | region 40 heated only by heat conduction.

  The base coat layer 41 is provided on the inner surface that extends from the center of the bottom surface portion 31 to the positioning flange portion 34. The base coat layer 41 is formed by applying and drying a fluorine mixed resin obtained by mixing an adhesive component that adheres to the heat transfer layer 36 that is the base and a fluororesin that adheres the fluorine coat layer 42 formed on the surface. It is formed. In the present embodiment, after the base coat layer 41 is formed, the scale 35 is pad-printed by applying ink to the surface with a resilient member such as a silicon rubber pad. Then, after this printing, a fluorine coat layer 42 is formed.

  The fluorine coat layer 42 is provided on the surface of the base coat layer 41. This fluorine coat layer 42 is excellent in heat resistance and water repellency, and is for preventing adhesion of cooked rice contained therein. The fluorine coat layer 42 is formed by applying and baking a predetermined fluorine resin.

  The rice cooker 10 configured in this manner has the second heated layer 39 that is the heated portion protrudes outward from the rice cooker 30 and the raised portion 23 protrudes inward from the accommodating portion 13. The part heater 24 and the side part 32 of the rice cooker 30 can be brought close to each other. And since the 2nd to-be-heated layer 39 of this embodiment consists of a nonmagnetic material with favorable heat conductivity, it heat-receives the heat | fever of the side heater 24 reliably, is transmitted to the heat-transfer layer 36, internal water and rice rice Can be heated. Further, since the second heated layer 39 is formed by thermal spraying, it can be easily and reliably formed in a desired shape in a desired region.

  And the upper end of the 2nd to-be-heated layer 39 and the protruding part 23 is provided so that it may be located in the water level (division 35a) at the time of cooking full rice. Therefore, the amount of heat by the side heater 24 can be efficiently transmitted to the rice cooker 30 to heat the rice. Here, the amount of heat released from the cooking pot 30 increases as it approaches the upper end opening. Therefore, by making the upper end of the 2nd to-be-heated part 39 to the water level vicinity at the time of heating full food, waste heat radiation can be suppressed and the inside of the cooking pan 30 can be heated efficiently.

  Moreover, since the clearance gap between the rice cooking pot 30 and the accommodating part 13 becomes small in the formation position of the 2nd to-be-heated layer 39 and the protruding part 23, the heat insulation space which suppressed heat dissipation can be formed below. Therefore, in a state where the energization of the side heater 24 is stopped, dew condensation in the rice cooker 30 can be prevented and the heat retaining performance can be improved.

  Furthermore, since the 2nd to-be-heated layer 39 formed in the rice cooking pot 30 and the protruding part 23 formed in the accommodating part 13 are the protrusion amounts located in the predetermined gap, the rice cooking pot 30 of the rice cooker main body 11 is used. When arrange | positioning in the accommodating part 13, the 2nd to-be-heated layer 39 interferes and does not become a hindrance of arrangement | positioning. Therefore, the user's usability can be improved. And since the accommodating part 13 does not need to hold | maintain the rice cooking pot 30 in an intermediate position, while the structure of the accommodating part 13 does not become complicated, the design change which considered rigidity and the precision is unnecessary.

  In addition, the 2nd to-be-heated layer 39 and the protruding part 23 are not restricted to the structure of the said embodiment, A various change is possible. For example, the formation positions of the second heated layer 39 and the raised portions 23 may be arranged so as to be positioned at a predetermined interval in the vertical direction as shown in FIG. 4A. In this case, as shown in the figure, the raised portion 23 may be positioned above the second heated layer 39, or the raised portion 23 may be positioned below the second heated layer 39. Even if it does in this way, the effect | action and effect substantially the same as the above can be acquired.

  Moreover, as shown to FIG. 4B, you may make the structure of the 2nd to-be-heated layer 39 and the protruding part 23 incline so that a mutual opposing surface may be located in parallel. In this case, as shown in the figure, it is preferable that the second heated layer 39 of the rice cooker 30 is formed so as to have a smaller downward diameter so as not to impair the usability when the rice cooker 30 is arranged. , It may be inclined in the opposite direction. Even if it does in this way, the effect | action and effect similar to the above can be acquired.

  Moreover, in the said embodiment, although the 2nd to-be-heated layer 39 was provided only in the area | region which opposes one heater wire 25b of the side part heater 24, as shown in FIG. Further, it may be provided so as to extend to the vicinity of the upper end of the bottom induction heating coil 19 (the lower end of the side surface portion 32). Here, when the second heated portion 39 is provided to the vicinity of the bottom surface portion 31 (induction heating region) beyond the upper end of the induction heating coil 19, the heat of the first heated portion 37 heated by the induction heating coil 19 is It is transmitted not only to the cooking pot 30 (heat transfer layer 36) but also to the second heated portion 39 on the outer surface of the cooking pot 30. As a result, only the inside of the cooking pan 30 cannot be efficiently heated. Therefore, by making the 2nd to-be-heated part 39 to the upper end vicinity of the induction heating coil 19, it can prevent that the above problems arise and the inside of the cooking pan 30 can be heated efficiently.

  Furthermore, in the said embodiment, although the one 2nd to-be-heated layer 39 was provided in the rice cooking pot 30, as shown in FIG. 6, multiple (2 pieces in illustration) are provided toward the bottom face part 31 from the upper end opening side. May be.

  FIG. 7 shows the rice cooker 10 of the second embodiment. In the second embodiment, a side induction heating coil 51 is disposed outside the inner cylinder 21 via a side ferrite core 52 as a side heating means. The inner cylinder 21 is formed by injection molding a resin that is a non-conductive material similar to the protective frame 14. Further, the second heated layer 39 of the second embodiment is the same as the first heated layer 37 that is induction heated by the eddy current flowing by the magnetic field generated by flowing a high-frequency current through the side induction heating coil 51. It is made of a magnetic material (stainless steel).

  Here, the 2nd to-be-heated layer 39 made from stainless steel (SUS430) has poor heat conductivity but high heat storage. Therefore, when heated by the side induction heating coil 51, the time until the temperature starts to rise (rise) is slow, but if the temperature is raised, the temperature is unlikely to decrease. Therefore, the heat accumulated in the second heated layer 39 can be gradually transferred to the heat transfer layer 36 constituting the pan body and heated. On the other hand, the thickness of the second heated layer 39 that can be formed by one thermal spraying is about 0.3 mm. Therefore, in order to obtain sufficient heat storage performance, it is preferable to increase the thickness by spraying a plurality of times.

  In the second embodiment configured as described above, the same operations and effects as the first embodiment can be obtained. Also in the second embodiment, the configuration of the second heated layer 39 can be variously changed as in the first embodiment.

  In addition, this invention is not limited to the structure of the said embodiment, A various change is possible.

  For example, in the above embodiment, the second heated layer 39 is formed by spraying molten metal, but may be formed by painting. When the side heating means is constituted by the side heater 24 as in the first embodiment, the paint for forming the second heated layer 39 is a silicon-based paint blended with carbon or aluminum particles having good thermal conductivity. Paint. When the side heating means is configured by the side induction heating coil 51 as in the second embodiment, the paint for forming the second heated layer 39 is a silicon-based paint containing a magnetic material. In addition, the thickness of the 2nd to-be-heated layer 39 which can be formed by one coating is about 0.02 mm. For this reason, in order to obtain a sufficient thickness according to the side heating means, it is preferable to repeat the coating process and the drying process and apply the coating multiple times. Thus, even if the 2nd to-be-heated layer 39 is formed by coating, the effect | action and effect similar to the above can be acquired, and manufacture is possible cheaply compared with the case of thermal spraying.

  In the above-described embodiment, the raised portion 23 and the second heated layer 39 are formed in an endless continuous annular shape. However, the discontinuous discontinuous shape, a large number of dimple shapes, a wave shape, a rectangular shape, and the like may be used. It can be changed according to In particular, these configurations are effective because they can be easily formed by performing thermal spraying or painting by masking the non-formed portion. In addition, as shown in FIG. 8, in the case where the raised portion 23 is configured by a plurality of protrusions provided so as to form a dimple shape, a thin metal plate is pressed into a dimple shape, and then a circular shape is formed. The inner cylinder 21 is formed by bending so as to form an annular shape.

  Further, in the first embodiment, the side heating means is configured by the side heater 24, and the second heated layer 39 is configured by a nonmagnetic material (aluminum) having good thermal conductivity, while in the second embodiment, The side heating means is constituted by the side induction heating coil 51, and the second heated layer 39 is constituted by a magnetic material (stainless steel) having a high heat storage property, but the side heating means is constituted by the side heater 24, 2 You may comprise the to-be-heated layer 39 with a metal material (stainless steel) with high heat storage property. Even if it does in this way, since the heat accumulate | stored in the 2nd to-be-heated layer 39 can be gradually transmitted and heated to the heat-transfer layer 36 similarly to 2nd Embodiment, the temperature difference of the side part 32 of the rice cooking pot 30 is suppressed. it can.

  Furthermore, in the above embodiment, the bottom heating means is constituted by the induction heating coil 19, but it may be constituted by a heating plate incorporating a heater wire in place of the induction heating coil 19. In this case, the first heated layer 37 is not provided.

  Moreover, in the said embodiment, although the 2nd to-be-heated layer 39 was directly formed in the surface of the 1st to-be-heated layer 37, the heat-resistant coating layer was provided in the surface of the 1st to-be-heated layer 37, and the 2nd to-be-heated layer was formed on the surface. A layer 39 may be provided. Alternatively, the second heated layer 39 may be provided on the surface of the first heated layer 37, and the heat resistant coating layer may be provided on these surfaces.

  And in the said embodiment, although the rice cooker 10 was mentioned as an example and demonstrated as a cooking rice cooker which mounts | wears with the cooking pot of this invention, if it is heating cookers, such as a mochi machine and a bread maker, any is applicable. It is possible to obtain the same actions and effects.

10 ... Rice cooker (heating cooker)
11 ... Rice cooker body (cooker body)
DESCRIPTION OF SYMBOLS 13 ... Accommodating part 14 ... Protective frame 19 ... Induction heating coil (bottom part heating means)
DESCRIPTION OF SYMBOLS 21 ... Inner trunk 23 ... Raised part 23a ... Inner edge part 24 ... Side part heater (side part heating means)
26 ... Lid 30 ... Rice cooker 31 ... Bottom part 32 ... Side part 33 ... Curved part 35a ... Full water level scale 36 ... Heat transfer layer 37 ... First heated layer 39 ... Second heated layer (heated part)
39a ... Outer end 40 ... Non-heated area 41 ... Undercoat layer 42 ... Fluorine coat layer 51 ... Side induction heating coil (side heating means)
52 ... Side ferrite core

Claims (4)

A bottomed cylindrical cooking pan having an open upper end is detachably accommodated in the accommodating portion, and the side portion of the cooking pan is heated by a side heating means disposed outside the accommodating portion, thereby the cooking pan. A heating cooker for heating the food contained therein,
On the side portion of the cooking pan, a to- be-heated portion that protrudes outward by spraying or painting is formed,
In the housing unit, located at predetermined intervals on the outside of the heated portion of the cooking pot, and said to be located at or near its match in the vertical direction and the heated portion, inwardly projecting ridge Set up a section ,
The raised portion of the housing portion is formed into an endless continuous annular shape, a side heater is disposed as the side heating means, and at least a part of the heater wire of the side heater is disposed on the raised portion. A cooking device characterized by being disposed along . The cooking device according to claim 1, wherein the heated portion is made of a nonmagnetic material having good thermal conductivity. The cooking device according to claim 1, wherein the heated portion is made of a metal having a high heat storage property. The cooker body that accommodates the cooking pan includes a bottom induction heating coil as a bottom heating means for heating the bottom surface of the cooking pan, and the cooking pan is induction-heated by the bottom induction heating coil. With a heating layer,
  The cooking device according to any one of claims 1 to 3, wherein a second heated layer is provided as the heated portion on a surface of the first heated layer.

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