JP3475956B2 - Electromagnetic induction cooker - Google Patents
Electromagnetic induction cookerInfo
- Publication number
- JP3475956B2 JP3475956B2 JP2002244713A JP2002244713A JP3475956B2 JP 3475956 B2 JP3475956 B2 JP 3475956B2 JP 2002244713 A JP2002244713 A JP 2002244713A JP 2002244713 A JP2002244713 A JP 2002244713A JP 3475956 B2 JP3475956 B2 JP 3475956B2
- Authority
- JP
- Japan
- Prior art keywords
- induction heating
- electromagnetic induction
- pot
- heating cooker
- cooker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は、電磁誘導加熱を用
いた炊飯器、加熱調理器などの電磁誘導加熱調理器用鍋
に関するものである。
【０００２】
【従来の技術】従来、この種の電磁誘導加熱調理器用鍋
は、図５に示すように非磁性金属のアルミニウム板２を
母材とし、その外側に磁性金属であるフェライト系ステ
ンレス鋼板２を合わせ材としたクラッド板を鍋形状にプ
レス加工し、その後、電磁誘導加熱調理器用鍋１の内側
表面にフッ素樹脂コーティングなどの表面処理を施した
構成としていた。
【０００３】
【発明が解決しようとする課題】しかしながら、上記従
来の構成では、クラッド材により成形された電磁誘導加
熱調理器用鍋１の肉厚は全体がほぼ均一であり、炊飯器
等の電磁誘導加熱調理器用鍋１に投入した調理物に良好
な対流を起こさせるには、鍋自体に手を加えるよりも、
誘導加熱コイルの取付位置や誘導加熱コイルの巻き数を
変化させるというような、電磁誘導加熱調理器本体側に
施される制御が主なものであった。例えば、電磁誘導加
熱を利用した炊飯器の場合では、誘導加熱コイルを、内
コイルと外コイルの２段構成にして良好な対流を得る、
といった電磁誘導加熱調理器本体側の制御がその一例で
ある。また、誘導加熱コイルに対向する部位の肉厚を変
化させることで対流が変化することは一般に知られてい
るが、クラッド材のような均一な板厚材料の場合はこう
した制御が難しかった。
【０００４】さらに、調理をする毎に電磁誘導加熱調理
器用鍋１にはかなりの熱が加わるが、クラッド材により
成形された電磁誘導加熱調理器用鍋１の場合、母材であ
るアルミニウム２と合わせ材である磁性金属３の熱膨張
係数の違いから、長年月を経るにつれ徐々に変形が生じ
てくる結果、誘導加熱コイルとの位置関係がずれ、発熱
量に変化が生じ、当初の調理性能が発揮できなくなると
いう問題も生じていた。
【０００５】本発明は上記事情に鑑みてなされたもの
で、電磁誘導加熱によって電磁誘導加熱調理器用鍋を発
熱させる構成において、電磁誘導加熱調理器用鍋内の調
理物に良好な対流を起こさせ、均一な加熱を実現させる
とともに、鍋寸法の経年変化を微小に抑え、当初の調理
性能を長期間維持することを目的とする。
【０００６】
【課題を解決するための手段】本発明は上記目的を達成
するために、アルミニウムとその外面に設けられた磁性
金属とを有する鍋を備え、前記磁性金属は少なくとも電
磁誘導加熱炊飯器本体の誘導加熱コイルの内コイルの対
向部から外コイルの対向部にかけて複数の凹凸を設けた
電磁誘導加熱炊飯器である。
【０００７】これにより、電磁誘導加熱によって電磁誘
導加熱調理器用鍋を発熱させる構成において、電磁誘導
加熱調理器用鍋内の調理物に良好な対流を起こすことが
できて、均一な加熱を実現できるとともに、鍋寸法の経
年変化を微小に抑え、当初の調理性能を長期間維持する
ことができる。
【０００８】
【発明の実施の形態】本発明の請求項１に記載の発明
は、アルミニウムとその外面に設けられた磁性金属とを
有する鍋を備え、前記磁性金属は少なくとも電磁誘導加
熱炊飯器本体の誘導加熱コイルの内コイルの対向部から
外コイルの対向部にかけて複数の凹凸を設けた電磁誘導
加熱炊飯器であり、電磁誘導加熱調理器本体の誘導加熱
コイルに対向する部位の磁性金属に複数の凹凸を設けて
いるため、発熱面積が増加するとともに、磁力線の性質
上、磁力線は凹凸加工の凸部に集中するので、凸部の発
熱が強まり、凹凸で温度差が生じ、電磁誘導加熱調理器
用鍋の内側に細かい対流が多数発生して調理物の対流が
より活発になる結果、均一な加熱が実現される。凹凸加
工を施された電磁誘導加熱調理器用鍋は加工硬化により
寸法の経時変化が極少ないため、安定した調理性能を長
期間維持できるとともに、高強度であり、取扱い性に優
れた電磁誘導加熱調理器用鍋とすることができる。
【０００９】以下、その発明の実施例について、添付図
面を参照しつつ説明する。
【００１０】
【実施例】電磁誘導加熱タイプの炊飯器に用いられる、
本発明を利用した電磁誘導加熱調理器用鍋について図
１、図２及び図３を用いて説明する。まず、図１（ａ）
において、電磁誘導加熱調理器用鍋４、誘導加熱コイル
５、及び温度センサ６の構成を説明する。４は本発明の
電磁誘導加熱調理器用鍋であり、外側の磁性金属７、内
側の熱良導性金属８より成り、内表面はご飯がこびり付
かないようにフッ素樹脂コーティング（非粘着性コーテ
ィング）９が施されている。磁性金属７はフェライト系
ステンレスや鋼板等、熱良導性金属８はアルミニウムま
たはアルミニウム合金から成り、一方、フッ素樹脂コー
ティングやシリコーン系の非粘着性のコーティングは電
磁誘導加熱調理器用鍋外面にも塗装可能である。
【００１１】５は誘導加熱コイルであり、内コイル５
ａ、外コイル５ｂの２段構成で電磁誘導加熱調理器用鍋
４の外周に円環状に、電磁誘導加熱調理器用鍋とは保護
枠１０を隔てて配置され、駆動時に磁力線を発生し、磁
性金属７を発熱させる。また、６は温度センサであり、
電磁誘導加熱調理器用鍋底中央部の外面に接触して電磁
誘導加熱調理器用鍋の温度を検知し、炊飯工程を正確に
遂行することに不可欠なものである。
【００１２】ここで、電磁誘導加熱調理器用鍋４の外面
には図１（ｂ）及び図１（ｃ）に示すように内コイル５
ａの対向部から外コイル５ｂの対向部にかけて、電磁誘
導加熱調理器用鍋底中心を円心とした同心円上に、放射
状に多数の凹凸加工１２が施されている。ここで言う凹
凸加工の数とは、加工される凹部１２ａの数を意味して
いる。図２は電磁誘導加熱調理器用鍋４において凹凸加
工１２を施した部位の断面図であり、外コイル５ｂとの
位置関係も同時に示している。
【００１３】１２ｂは凸になっている部分、１２ａは凹
になっている部分を示すが、設けられる凹凸加工の数、
形状、配置は特に限定されるものではなく、図３（ａ）
あるいは図３（ｂ）に示されたような形状やこれらの組
み合わせでもかまわないし、隣接する凹部模様が図３
（ｃ）のように互いに重なっていても問題はない。本実
施例では、鍋底外面中心部１１は炊飯器本体の温度セン
サ６が接触する構造となっているため、電磁誘導加熱調
理器用鍋４との接触を良好にするためにこの部位には凹
凸加工１２を施していないが、温度センサ６が鍋側面に
接触するような構成の調理器では鍋底中心部に凹凸加工
が施されていても問題はない。
【００１４】凹凸加工を施される部位は誘導加熱コイル
に対向する部位のみに限定されるものではなく、また、
内コイル５ａに対向する部位には凹凸加工を設けるが、
外コイル５ｂに対向する部位には設けないという構成、
もしくは、誘導加熱コイルに対向する部位であっても、
凹凸加工を設ける部分と設けない部分に分ける構成とし
て、対流に変化を出させることも可能である。
【００１５】以上のごとき構成により、炊飯器本体の駆
動時には、誘導加熱コイル５より発せられた磁力線は、
凹凸加工の凸部に集中し、局部的に強い発熱部が多数発
生することにより、図２の如く、電磁誘導加熱調理器用
鍋内の湯には細かく複雑な対流が多数発生し、結果とし
て米が均一に加熱されるようになる。これと同時に、内
面には非粘着性のフッ素樹脂コート９が処理されている
ため、凹凸部への調理物のこびりつきも少なく、また、
凹凸加工による加工硬化により長期間の実使用における
経時寸法変化を極わずかに抑えられるという効果も生じ
る。
【００１６】次に、この凹凸加工を施した本実施例の電
磁誘導加熱調理器用鍋の具体的な製造方法について説明
する。
【００１７】まず、母材の熱良導体であるアルミニウム
と、発熱を担う磁性金属であるステンレスとを張り合わ
せた、板厚比率３．０、厚さ２ｍｍ、直径４００ｍｍの
クラッド平板を準備し、図４（ａ）に示すような、直径
１０ｍｍの円柱状で、先端部球面Ｒ＝２５ｍｍのパンチ
１４を複数備えたプレス機により、内コイルから外コイ
ルに対向する部位まで、平板の中心を円心とした同心円
上に、放射状に複数の最大深さ０．４ｍｍの凹凸加工１
２をステンレス側に施こす。
【００１８】次に、ステンレス側にパンチを押し当て、
プレスすることで、図４（ｂ）に示すように、パンチを
押し当てられた部位がパンチの先端形状に凹形状１２ａ
に加工されるとともに、これにより周囲に押し出された
部位が盛り上がり、凸形状１２ｂを形成することにな
る。なお、各々のパンチは平板の歪みを抑えるために、
ウレタンゴム等の弾力性のある材質で周囲を覆うことも
可能である。この工程では、平板に反りが発生するが、
レベラーや平面型を備えたプレス機で矯正することが可
能である。また、凹凸加工の加工法上、凹凸は内面のア
ルミニウム側にも浮きでることもあるが、内面の凹凸が
不必要なときは、研磨等によりアルミ面を平滑化するこ
とができる。
【００１９】次に、所定の金型とパンチを備えたプレス
機械を用いて、目的の鍋形状に絞り加工を行い、続いて
電磁誘導加熱調理器用鍋の内面にフッ素樹脂コーティン
グを施した。電磁誘導
加熱調理器用鍋の外面は、研磨して金属光沢を出すこと
もでき、また、塗装によりさまざまな色調にすることが
可能である。
【００２０】本実施例では、凹凸加工を平板に処理して
いるが、平板を鍋形状に絞り加工してから処理すること
も可能であり、この場合は、フッ素樹脂コーティング処
理前に凹凸加工を施せば、残留応力や傷付き等、フッ素
樹脂コーティングへの悪影響を少なくすることができ
る。
【００２１】
【発明の効果】このように、請求項１記載の発明によれ
ば、電磁誘導加熱調理器本体の加熱機構に対向する部位
の金属面に複数の凹凸を設けているため、発熱面積が増
加するので発熱が強まり、電磁誘導加熱調理器用鍋内の
調理物の対流がより活発になる結果、均一な加熱が実現
される。これと同時に、非粘着コーティング処理された
内面は凹凸加工があっても調理物のこびりつきが少な
く、また、凹凸加工を施された電磁誘導加熱調理器用鍋
は加工硬化により寸法の経時変化が極少ないため、安定
した調理性能を長期間維持できるとともに、高強度であ
り、取扱い性に優れた電磁誘導加熱調理器用鍋となる。 Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pot for an electromagnetic induction heating cooker such as a rice cooker and a cooker using electromagnetic induction heating. 2. Description of the Related Art Conventionally, a pot of this type for an electromagnetic induction heating cooker is made of a nonmagnetic metal aluminum plate 2 as a base material and a ferritic stainless steel plate which is a magnetic metal outside thereof, as shown in FIG. 2 was pressed into a pot shape using a clad plate made of a composite material, and then the inner surface of the electromagnetic induction heating cooker pot 1 was subjected to a surface treatment such as fluororesin coating. However, in the above-mentioned conventional construction, the thickness of the electromagnetic induction heating cooker pot 1 formed of a clad material is substantially uniform throughout, and the electromagnetic induction of a rice cooker or the like is not uniform. In order to cause good convection in the food put in the cooking pot 1, rather than modifying the pot itself,
Control performed on the electromagnetic induction heating cooker main body, such as changing the mounting position of the induction heating coil and the number of turns of the induction heating coil, has been mainly performed. For example, in the case of a rice cooker using electromagnetic induction heating, a good convection is obtained by making the induction heating coil a two-stage configuration of an inner coil and an outer coil.
Such control of the electromagnetic induction heating cooker main body side is an example. It is generally known that the convection is changed by changing the thickness of the portion facing the induction heating coil. However, such control is difficult in the case of a uniform thickness material such as a clad material. Further, considerable heat is applied to the electromagnetic induction heating cooker pot 1 every time cooking is performed. However, in the case of the electromagnetic induction heating cooker pot 1 formed of a clad material, it is combined with the aluminum 2 as a base material. Due to the difference in the coefficient of thermal expansion of the magnetic metal 3, which is a material, deformation gradually occurs over the years, resulting in a shift in the positional relationship with the induction heating coil, a change in the amount of heat generated, and an increase in the initial cooking performance. There was also a problem that it could not be demonstrated. The present invention has been made in view of the above circumstances, and in a configuration in which an electromagnetic induction heating cooker pan is heated by electromagnetic induction heating, a good convection is caused in a food in the electromagnetic induction heating cooker pan, The aim is to achieve uniform heating, to minimize the aging of pot dimensions over time, and to maintain the original cooking performance for a long time. [0006] In order to achieve the above object, the present invention provides aluminum and a magnetic material provided on its outer surface.
A pot having a metal, wherein the magnetic metal is at least
Magnetic induction heating rice cooker body induction heating coil inner coil pair
Multiple irregularities are provided from the facing part to the facing part of the outer coil
It is an electromagnetic induction heating rice cooker . [0007] Thus, in a configuration in which the electromagnetic induction heating cooker pan generates heat by electromagnetic induction heating, good convection can be generated in the food in the electromagnetic induction heating cooker pan, and uniform heating can be realized. In addition, it is possible to minimize the secular change of the pot size and maintain the initial cooking performance for a long period of time . [0008] The invention according to claim 1 of the present invention comprises a pot having aluminum and a magnetic metal provided on an outer surface thereof, wherein the magnetic metal is at least an electromagnetic induction heating rice cooker main body. From the opposite part of the inner coil of the induction heating coil
It is an electromagnetic induction heating rice cooker provided with a plurality of irregularities over the opposing portion of the outer coil, and since a plurality of irregularities are provided on the magnetic metal at a portion of the electromagnetic induction heating cooker body facing the induction heating coil, a heating area is reduced. Due to the nature of the lines of magnetic force, the lines of magnetic force are concentrated on the convexities of the irregularities, so the heat generated by the convexities increases, causing a temperature difference between the irregularities and a number of fine convections inside the electromagnetic induction heating cooker pan. As a result, the convection of the food becomes more active, so that uniform heating is realized . The electromagnetic induction heating cooker that has been subjected to unevenness processing has little change in dimensions over time due to work hardening, so it can maintain stable cooking performance for a long period of time, and has high strength and excellent handling characteristics. It can be a dexterous pot . An embodiment of the present invention will be described below with reference to the accompanying drawings. DESCRIPTION OF THE PREFERRED EMBODIMENTS An electromagnetic induction heating type rice cooker,
A pan for an electromagnetic induction heating cooker utilizing the present invention will be described with reference to FIGS. 1, 2 and 3. FIG. First, FIG.
, The configuration of the electromagnetic induction heating cooker pan 4, the induction heating coil 5, and the temperature sensor 6 will be described. Reference numeral 4 denotes a pot for an electromagnetic induction heating cooker according to the present invention, which comprises an outer magnetic metal 7 and an inner heat conductive metal 8 and has an inner surface coated with a fluororesin (non-adhesive coating) 9 so that rice does not stick. Is given. The magnetic metal 7 is made of a ferritic stainless steel or a steel plate, and the thermally conductive metal 8 is made of aluminum or an aluminum alloy. On the other hand, a fluororesin coating or a silicone-based non-stick coating is also applied to the outer surface of a pan for an electromagnetic induction heating cooker. It is possible. Reference numeral 5 denotes an induction heating coil.
a, a two-stage configuration of an outer coil 5b, which is annularly arranged on the outer periphery of the electromagnetic induction heating cooker pan 4 with a protective frame 10 separated from the electromagnetic induction heating cooker pan, generates magnetic lines of force when driven, and generates magnetic metal. 7 is exothermic. 6 is a temperature sensor,
It is indispensable to detect the temperature of the electromagnetic induction heating cooker pot by contacting the outer surface of the central portion of the electromagnetic induction heating cooker pot bottom and to accurately perform the rice cooking process. Here, as shown in FIGS. 1 (b) and 1 (c), an inner coil 5 is provided on the outer surface of the pot 4 for the electromagnetic induction heating cooker.
A large number of concavities and convexities 12 are radially formed on a concentric circle whose center is the center of the bottom of the electromagnetic induction heating cooker from the opposing portion of a to the opposing portion of the outer coil 5b. Here, the number of concave and convex processing means the number of concave portions 12a to be processed. FIG. 2 is a cross-sectional view of the portion of the electromagnetic induction heating cooker pot 4 on which the unevenness processing 12 has been performed, and also shows the positional relationship with the outer coil 5b. Reference numeral 12b denotes a convex portion, and 12a denotes a concave portion.
The shape and arrangement are not particularly limited.
Alternatively, the shape shown in FIG. 3B or a combination thereof may be used.
There is no problem if they overlap each other as in (c). In the present embodiment, since the pot bottom outer surface center portion 11 has a structure in which the temperature sensor 6 of the rice cooker body comes into contact, in order to make good contact with the electromagnetic induction heating cooker pot 4, unevenness processing is performed on this portion. Although the step 12 is not performed, there is no problem even if unevenness is applied to the center of the bottom of the pot in a cooking device in which the temperature sensor 6 contacts the side of the pot. [0014] The portion subjected to the concavo-convex processing is not limited to only the portion facing the induction heating coil.
The surface facing the inner coil 5a is provided with unevenness,
A configuration that is not provided at a portion facing the outer coil 5b;
Or, even at a site facing the induction heating coil,
It is also possible to change the convection as a configuration of dividing into a portion provided with unevenness and a portion not provided. With the above configuration, when the rice cooker body is driven, the lines of magnetic force generated by the induction heating coil 5 are:
As shown in FIG. 2, a large number of fine and complicated convections are generated in the hot water in the electromagnetic induction heating cooker due to the generation of a large number of locally strong heat generating portions concentrated on the convex portions of the unevenness processing. Is uniformly heated. At the same time, since the non-adhesive fluororesin coat 9 is treated on the inner surface, there is little sticking of the food to the uneven portion, and
Due to the work hardening by the unevenness processing, there is also an effect that the dimensional change over time during long-term actual use can be suppressed very slightly. Next, a specific method of manufacturing the pot for the electromagnetic induction heating cooker of the present embodiment, which has been subjected to the unevenness processing, will be described. First, a clad flat plate having a plate thickness ratio of 3.0, a thickness of 2 mm, and a diameter of 400 mm prepared by laminating aluminum, which is a good thermal conductor of a base material, and stainless steel, which is a magnetic metal that generates heat, was prepared. As shown in (a), a press machine having a plurality of punches 14 each having a cylindrical shape with a diameter of 10 mm and a tip end spherical surface R = 25 mm is used to center the center of the flat plate from the inner coil to the portion facing the outer coil. A plurality of concavo-convex processing with a maximum depth of 0.4 mm on the concentric circle
2 is applied to the stainless steel side. Next, a punch is pressed against the stainless steel side,
By pressing, as shown in FIG. 4 (b), the portion pressed by the punch has a concave shape 12a in the tip shape of the punch.
As a result, the portion extruded to the periphery rises to form the convex shape 12b. In addition, each punch is to suppress the distortion of the flat plate,
It is also possible to cover the periphery with an elastic material such as urethane rubber. In this process, the flat plate warps,
It can be straightened by a press equipped with a leveler or a flat mold. Also, due to the processing method of the unevenness processing, the unevenness may float on the aluminum side of the inner surface, but when the unevenness of the inner surface is unnecessary, the aluminum surface can be smoothed by polishing or the like. Next, using a press machine equipped with a predetermined mold and a punch, drawing was performed into a desired pot shape, and then a fluororesin coating was applied to the inner surface of the pot for the electromagnetic induction heating cooker. The outer surface of the pot for the electromagnetic induction heating cooker can be polished to give a metallic luster, and various colors can be obtained by painting. In this embodiment, the unevenness is processed into a flat plate. However, the flattening may be performed after the flat plate is drawn into a pot shape. In this case, the unevenness is processed before the fluororesin coating process. If applied, adverse effects on the fluororesin coating, such as residual stress and scratches, can be reduced. As described above, according to the first aspect of the present invention, since a plurality of irregularities are provided on the metal surface of the portion of the electromagnetic induction heating cooker body facing the heating mechanism, a heat generation area is provided. As a result, the heat generation increases, and the convection of the food in the pan for the electromagnetic induction heating cooker becomes more active. As a result, uniform heating is realized. At the same time, the inner surface of the non-adhesive coating treatment has less sticking of the food even if it has unevenness, and the electromagnetic induction heating cooker with the unevenness has very little change over time in dimensions due to work hardening. As a result, a stable cooking performance can be maintained for a long time, and a high-strength, easy-to-handle electromagnetic induction heating cooker pot is obtained.
【図面の簡単な説明】
【図１】（ａ）本発明の実施の形態を示す電磁誘導加熱
調理器用鍋と温度センサ、誘導加熱コイルとの位置関係
を示す断面図
（ｂ）同電磁誘導加熱調理器用鍋の側面図
（ｃ）同電磁誘導加熱調理器用鍋の底面図
【図２】同電磁誘導加熱調理器用鍋の部分断面図
【図３】（ａ）同電磁誘導加熱調理器用鍋の凹凸加工の
形状図
（ｂ）同電磁誘導加熱調理器用鍋の別の凹凸加工の形状
図
（ｃ）同電磁誘導加熱調理器用鍋の更に別の凹凸加工の
形状図
【図４】（ａ）同電磁誘導加熱調理器用鍋の凹凸加工前
を示す断面図
（ｂ）同電磁誘導加熱調理器用鍋の凹凸加工後を示す断
面図
【図５】従来の電磁誘導加熱調理器用鍋の破断断面図
【符号の説明】
４ 電磁誘導加熱調理器用鍋
７ 磁性金属
８ アルミニウム
９ フッ素樹脂コーティング（非粘着性コーティング）
１２ａ 凹部
１２ｂ 凸部BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 (a) is a cross-sectional view showing a positional relationship between a pot for an electromagnetic induction heating cooker, a temperature sensor, and an induction heating coil according to an embodiment of the present invention. Side view of cooker pot (c) Bottom view of the electromagnetic induction cooker pan [FIG. 2] Partial sectional view of the electromagnetic induction cooker pot [FIG. 3] (a) Irregularities of the electromagnetic induction cooker pot Shape diagram of processing (b) Shape diagram of another concavo-convex processing of the same pot for electromagnetic induction heating cooker (c) Shape diagram of further concavo-convex processing of the same pot for electromagnetic induction heating cooker [Fig. 4] (a) Same electromagnetic wave FIG. 5B is a cross-sectional view of the induction heating cooker before and after the concave and convex processing, and FIG. 5B is a cross-sectional view of the electromagnetic induction heating cooker after the concave and convex processing. Explanation 4 Pot for electromagnetic induction heating cooker 7 Magnetic metal 8 Aluminum 9 Fluororesin coating Grayed (non-stick coating) 12a recess 12b protrusions
フロントページの続き (56)参考文献 特開 平４−174614（ＪＰ，Ａ) 特開 平２−95317（ＪＰ，Ａ) 特開 平７−213420（ＪＰ，Ａ) 実開 昭61−149298（ＪＰ，Ｕ) 実開 昭57−129528（ＪＰ，Ｕ) 実開 昭61−23292（ＪＰ，Ｕ) 実開 昭61−83293（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) H05B 6/12 A47J 36/02 A47J 27/00 107 Continuation of the front page (56) References JP-A-4-174614 (JP, A) JP-A-2-95317 (JP, A) JP-A-7-213420 (JP, A) JP-A-61-149298 (JP) , U) Japanese Utility Model Showa 57-129528 (JP, U) Japanese Utility Model Showa 61-23292 (JP, U) Japanese Utility Model Showa 61-83293 (JP, U) (58) Fields surveyed (Int. Cl. 7 , DB Name) H05B 6/12 A47J 36/02 A47J 27/00 107
Claims (1)
性金属とを有する鍋を備え、前記磁性金属は少なくとも
電磁誘導加熱炊飯器本体の誘導加熱コイルの内コイルの
対向部から外コイルの対向部にかけて複数の凹凸を設け
た電磁誘導加熱炊飯器。(57) [Claim 1] A pot having aluminum and a magnetic metal provided on an outer surface thereof, wherein the magnetic metal is at least a coil of an induction heating coil of an electromagnetic induction heating rice cooker main body .
An electromagnetic induction heating rice cooker in which a plurality of irregularities are provided from the facing portion to the facing portion of the outer coil .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002244713A JP3475956B2 (en) | 2002-08-26 | 2002-08-26 | Electromagnetic induction cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002244713A JP3475956B2 (en) | 2002-08-26 | 2002-08-26 | Electromagnetic induction cooker |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28556795A Division JP3477951B2 (en) | 1995-11-02 | 1995-11-02 | Electromagnetic induction cooker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003079516A JP2003079516A (en) | 2003-03-18 |
| JP3475956B2 true JP3475956B2 (en) | 2003-12-10 |
Family
ID=19196514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002244713A Expired - Lifetime JP3475956B2 (en) | 2002-08-26 | 2002-08-26 | Electromagnetic induction cooker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3475956B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007117175A (en) * | 2005-10-25 | 2007-05-17 | Shinshohin Idea Kikaku Kenkyusho:Kk | Electromagnetic cooker |
| JP5369459B2 (en) * | 2008-03-17 | 2013-12-18 | パナソニック株式会社 | Clad pan for induction heating cooker |
| JP6089109B2 (en) * | 2013-09-19 | 2017-03-01 | シャープ株式会社 | Cooker |
-
2002
- 2002-08-26 JP JP2002244713A patent/JP3475956B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2003079516A (en) | 2003-03-18 |
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