JP3287549B2 - Electromagnetic induction heating cooking container - Google Patents
Electromagnetic induction heating cooking containerInfo
- Publication number
- JP3287549B2 JP3287549B2 JP18786498A JP18786498A JP3287549B2 JP 3287549 B2 JP3287549 B2 JP 3287549B2 JP 18786498 A JP18786498 A JP 18786498A JP 18786498 A JP18786498 A JP 18786498A JP 3287549 B2 JP3287549 B2 JP 3287549B2
- Authority
- JP
- Japan
- Prior art keywords
- induction heating
- plating layer
- cooking container
- electromagnetic induction
- heating cooking
- 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
Links
- 238000010438 heat treatment Methods 0.000 title claims description 50
- 238000010411 cooking Methods 0.000 title claims description 27
- 230000005674 electromagnetic induction Effects 0.000 title claims description 18
- 238000007747 plating Methods 0.000 claims description 42
- 230000006698 induction Effects 0.000 claims description 30
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- 239000000696 magnetic material Substances 0.000 claims description 18
- 229910052742 iron Inorganic materials 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 229910017052 cobalt Inorganic materials 0.000 claims description 3
- 239000010941 cobalt Substances 0.000 claims description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 3
- 229910052741 iridium Inorganic materials 0.000 claims description 3
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052762 osmium Inorganic materials 0.000 claims description 3
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 claims description 3
- 229910052763 palladium Inorganic materials 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 229910052703 rhodium Inorganic materials 0.000 claims description 3
- 239000010948 rhodium Substances 0.000 claims description 3
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052707 ruthenium Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 230000008719 thickening Effects 0.000 claims 1
- 239000000463 material Substances 0.000 description 13
- 241000209094 Oryza Species 0.000 description 7
- 235000007164 Oryza sativa Nutrition 0.000 description 7
- 230000020169 heat generation Effects 0.000 description 7
- 235000009566 rice Nutrition 0.000 description 7
- 230000004907 flux Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- QXZUUHYBWMWJHK-UHFFFAOYSA-N [Co].[Ni] Chemical compound [Co].[Ni] QXZUUHYBWMWJHK-UHFFFAOYSA-N 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
Landscapes
- Cookers (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は電磁誘導加熱調理容
器に関するものであって、誘導加熱コイルの近傍に設置
し、当該誘導加熱コイルから発生する高周波磁界により
誘導電流を生じ、当該誘導電流により調理容器自体が発
熱して内容物を加熱調理する、調理容器に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic induction heating cooking container, which is installed in the vicinity of an induction heating coil, generates an induction current by a high frequency magnetic field generated from the induction heating coil, and performs cooking by the induction current. The present invention relates to a cooking container in which a container itself generates heat and cooks contents.
【０００２】[0002]
【従来の技術】従来からこの種の誘導加熱コイルと共に
使用して誘導電流により発熱する電磁誘導加熱調理容器
としては、一般に鉄などの磁性材料よりなるものが使用
されている。2. Description of the Related Art Conventionally, as an electromagnetic induction heating cooking container that generates heat by an induction current when used together with an induction heating coil of this type, a container made of a magnetic material such as iron is generally used.
【０００３】しかしながらこのものでは比重の大きい鉄
を主体とするために重く、取り扱いにくい。そのため、
アルミニウムなどの非磁性材料を基材とし、その外面に
磁性材料をクラッド材として張り付けるなどの手段で、
磁性を持たせて電磁誘導加熱することが行われている。However, this type is heavy and difficult to handle because it is mainly composed of iron having a large specific gravity. for that reason,
By using a non-magnetic material such as aluminum as a base material and attaching a magnetic material as a cladding material to the outer surface,
Electromagnetic induction heating with magnetism is performed.
【０００４】しかしながらこれらのものにおいても、コ
ストや耐蝕性において問題があり、またクラッド材を張
り付ける方法では磁性材料の厚みの部分的な調節が困難
であるため、全体として均一に加熱することが困難であ
る。However, these materials also have problems in cost and corrosion resistance, and it is difficult to partially adjust the thickness of the magnetic material by the method of attaching a clad material. Have difficulty.
【０００５】そこで特開平９−３５７６号公報には、非
磁性材料よりなる基材の外面にニッケル−コバルト合金
のメッキを施し、当該メッキ層において誘導電流を生ぜ
しめて発熱させることが記載されている。Japanese Patent Application Laid-Open No. 9-3576 describes that a nickel-cobalt alloy is plated on the outer surface of a substrate made of a non-magnetic material, and an induced current is generated in the plating layer to generate heat. .
【０００６】[0006]
【発明が解決しようとする課題】しかしながら前記公報
に記載された発明では、メッキ層の厚みが１０〜１００
ミクロンと薄いため、当該メッキ層を貫通する磁力線に
より発生する誘導電流に対する基材の抵抗が小さく、十
分な出力電力が得にくい。そのため一般に使用される鉄
鍋と同等の出力電力を得るためには、誘導電流を大きく
する必要があり、コイルが必要以上に発熱し、高温にな
る。However, in the invention described in the above publication, the thickness of the plating layer is 10 to 100.
Since it is as thin as micron, the resistance of the base material to the induced current generated by the lines of magnetic force penetrating the plating layer is small, and it is difficult to obtain sufficient output power. Therefore, in order to obtain an output power equivalent to that of a commonly used iron pot, it is necessary to increase the induced current, and the coil generates more heat than necessary and becomes hot.
【０００７】本発明はかかる事情に鑑みなされたもので
あって、非磁性材料の外面に磁性材料のメッキ層を形成
して誘導加熱を可能ならしめると共に、その誘導加熱に
伴ってコイルが必要以上に発熱することがなく、また誘
導加熱により全体に亙って均一に加熱することのできる
電磁誘導加熱調理容器を提供することを目的とするもの
である。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and a plating layer of a magnetic material is formed on an outer surface of a non-magnetic material to enable induction heating, and the coil is unnecessarily increased due to the induction heating. SUMMARY OF THE INVENTION It is an object of the present invention to provide an electromagnetic induction heating cooking container that does not generate heat and that can be uniformly heated by induction heating.
【０００８】[0008]
【課題を解決するための手段】而して第一の発明は、非
磁性材料よりなる基材の外面に、磁性を有する金属より
なる１３０〜３００ミクロンのメッキ層を形成すると共
に、その基材の内面にフッ素樹脂層を形成し、然る後１
８０℃以上５００℃未満の温度に加熱してなることを特
徴とするものである。Means for Solving the Problems According to a first aspect of the present invention, a 130-300 micron plating layer made of a magnetic metal is formed on the outer surface of a base made of a non-magnetic material, A fluororesin layer on the inner surface of
It is characterized by being heated to a temperature of at least 80 ° C and less than 500 ° C.
【０００９】また第二の発明は、非磁性材料よりなる基
材の外面に、磁性を有する金属よりなる１３０〜３００
ミクロンのメッキ層を形成し、調理容器の周方向におい
て、当該調理容器に取付けられた把手の近傍を、他の部
分に比べて前記メッキ層の厚みを厚くしたことを特徴と
するものである。In a second aspect of the present invention, a base made of a non-magnetic material is provided on an outer surface of a base material made of a magnetic material.
A micron plating layer is formed, and in the circumferential direction of the cooking container, the thickness of the plating layer is increased in the vicinity of a handle attached to the cooking container as compared with other portions.
【００１０】本発明において前記非磁性材料は、アルミ
ニウム又は銅を使用することができる。また前記磁性を
有する金属としては、鉄、コバルト、ニッケル、ルテニ
ウム、ロジウム、パラジウム、オスミウム、イリジウム
若しくは白金又はこれらの合金が適当である。In the present invention, the non-magnetic material may be aluminum or copper. As the metal having magnetism, iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium, iridium, platinum or an alloy thereof is suitable.
【００１１】[0011]
【発明の実施の形態】図１は本発明の電磁誘導加熱調理
容器を内鍋として使用した電磁誘導加熱炊飯器１を示す
ものであって、外装体２内に誘導加熱コイル３が設置さ
れ、当該誘導加熱コイル３上に調理容器としての内鍋４
が載置されている。９は温度センサーであり、１０は外
装体２の上部を塞ぐ蓋である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an electromagnetic induction heating rice cooker 1 using an electromagnetic induction heating cooking container of the present invention as an inner pot, in which an induction heating coil 3 is installed in an exterior body 2, An inner pot 4 as a cooking vessel on the induction heating coil 3
Is placed. Reference numeral 9 denotes a temperature sensor, and reference numeral 10 denotes a lid that covers an upper portion of the exterior body 2.
【００１２】前記内鍋４において、５はアルミニウムな
どの非磁性材料よりなる内鍋基材であって、その底面か
ら側面下部の外面には鉄などの磁性を有する金属よりな
るメッキ層６が形成され、内面にはフッ素樹脂層が形成
されている。In the inner pot 4, reference numeral 5 denotes an inner pot base made of a non-magnetic material such as aluminum, and a plating layer 6 made of a magnetic metal such as iron is formed on the outer surface from the bottom to the lower side of the side. A fluororesin layer is formed on the inner surface.
【００１３】内鍋基材５は非磁性材料よりなることが必
要であり、その素材としてはアルミニウム又は銅が適当
であるが、その他ＳＵＳ−３０４などの非磁性のステン
レスを使用することもできる。またセラミック素材やガ
ラスなどの非金属素材を使用することも可能である。The inner pot base material 5 needs to be made of a non-magnetic material. Aluminum or copper is suitable as the material, but non-magnetic stainless steel such as SUS-304 can also be used. It is also possible to use a non-metallic material such as a ceramic material or glass.
【００１４】またメッキ層６は磁性を有する金属であっ
て、鉄、コバルト、ニッケル、ルテニウム、ロジウム、
パラジウム、オスミウム、イリジウム若しくは白金など
の遷移金属又は、これらの合金が適当である。The plating layer 6 is a metal having magnetic properties, such as iron, cobalt, nickel, ruthenium, rhodium,
Transition metals such as palladium, osmium, iridium or platinum or alloys thereof are suitable.
【００１５】そして本発明においては、メッキ層６の厚
みが１３０〜３００ミクロンであることが必要である。
１３０ミクロン未満では誘導加熱コイル３が発熱し、誘
導加熱コイル３の温度が不必要に高くなると共に、入力
電力の一部がコイル３で消費されて損失となる。またメ
ッキ層６の厚みが大きくなると誘導加熱コイル３の温度
は低くなるが、３００ミクロンを超えてもそれ以上誘導
加熱コイル３の発熱を抑制する効果は生じない。In the present invention, the plating layer 6 needs to have a thickness of 130 to 300 microns.
If it is less than 130 microns, the induction heating coil 3 generates heat, the temperature of the induction heating coil 3 becomes unnecessarily high, and a part of the input power is consumed by the coil 3 to cause a loss. When the thickness of the plating layer 6 increases, the temperature of the induction heating coil 3 decreases. However, even if the thickness exceeds 300 microns, the effect of suppressing the heat generation of the induction heating coil 3 is not further increased.
【００１６】前記メッキ層６の厚みは、内鍋４のメッキ
層６における誘導加熱コイル３から発生する磁束に触れ
る範囲において、メッキ層６の平均厚みが１３０〜３０
０ミクロンであることを要するが、当該範囲を超えてメ
ッキ層６が形成されていても差支えはなく、その部分に
おける厚みは限定されない。また温度センサー９に接触
する部分は、メッキ層６を形成しないことができる。The average thickness of the plating layer 6 is 130 to 30 in a range where the plating layer 6 of the inner pan 4 is in contact with the magnetic flux generated from the induction heating coil 3.
It is required that the thickness be 0 μm, but there is no problem even if the plating layer 6 is formed beyond the range, and the thickness at that portion is not limited. Further, the plating layer 6 may not be formed in the portion in contact with the temperature sensor 9.
【００１７】而して第一の発明においては、基材５の外
面にメッキ層６を形成し、内面にフッ素樹脂層を形成し
た後、１８０〜５００℃に加熱して熱処理されている。
熱処理の温度は１８０℃以上であることが必要である
が、５００℃以上になるとメッキ層６に焼戻しによる脆
化が生ずる恐れがあるので好ましくない。またその熱処
理の時間は、１５〜６０分程度が適当である。According to the first invention, the plating layer 6 is formed on the outer surface of the base material 5 and the fluororesin layer is formed on the inner surface.
The temperature of the heat treatment needs to be 180 ° C. or higher, but if it is higher than 500 ° C., it is not preferable because the plating layer 6 may be embrittled by tempering. The heat treatment time is suitably about 15 to 60 minutes.
【００１８】メッキ層６を熱処理することにより、メッ
キ層６内における格子欠陥が減少し、高密度の転移も減
少し、さらに結晶粒界への不純物の偏析を防ぐこともで
きるので、電磁誘導により内鍋４が均一に且つ効率よく
発熱し、誘導加熱コイル３の過度の発熱を防止すること
ができる。By heat-treating the plating layer 6, lattice defects in the plating layer 6 are reduced, high-density transition is reduced, and segregation of impurities at crystal grain boundaries can be prevented. The inner pan 4 generates heat uniformly and efficiently, and excessive heat generation of the induction heating coil 3 can be prevented.
【００１９】また基材５の内面にフッ素樹脂層が形成さ
れており、前記メッキ層６の熱処理と同時に前記フッ素
樹脂層の焼成が行われる。一般に電磁誘導加熱炊飯器１
の内鍋４にはその内面にフッ素樹脂加工が施され、当該
フッ素樹脂加工においては３８０℃程度の温度で３０分
程度の焼成が行われるので、当該フッ素樹脂の焼成工程
とメッキ層６の熱処理とが一工程で行われる。Further, a fluororesin layer is formed on the inner surface of the substrate 5, and the fluororesin layer is baked simultaneously with the heat treatment of the plating layer 6. Generally, induction heating rice cooker 1
The inner pot 4 is subjected to a fluororesin processing on the inner surface thereof. In the fluororesin processing, firing is performed at a temperature of about 380 ° C. for about 30 minutes. Are performed in one step.
【００２０】また前記磁束に触れる範囲におけるメッキ
層６の厚みは、部分的に変化させることは可能である。
誘導加熱コイル３から発生する磁束密度は必ずしも均一
ではなく部分的に大小にばらつくが、当該磁束の分布に
ほゞ比例してメッキ層６の厚みを変化させることが好ま
しい。Further, the thickness of the plating layer 6 in a range where the plating layer contacts the magnetic flux can be partially changed.
The density of the magnetic flux generated from the induction heating coil 3 is not necessarily uniform, but varies partly in a large or small manner. However, it is preferable to change the thickness of the plating layer 6 almost in proportion to the distribution of the magnetic flux.
【００２１】図２及び図３は第二の発明における内鍋４
を示すものであって、内鍋基材５の外面にメッキ層６が
形成されている。そして内鍋４の上端部の相対向する二
か所に把手７が取り付けられており、その把手７の下方
におけるメッキ層６には、厚み増大部８が形成されてい
る。当該厚み増大部８の厚みは把手７の部分における内
鍋４や外装体２の構造にもよるが、メッキ層６の平均厚
みの２０〜１００％大きい程度が適当である。FIGS. 2 and 3 show an inner pot 4 according to the second invention.
The plating layer 6 is formed on the outer surface of the inner pot base material 5. Handles 7 are attached to two opposing locations on the upper end of the inner pan 4, and a thickened portion 8 is formed in the plating layer 6 below the handle 7. The thickness of the thickness-increasing portion 8 depends on the structure of the inner pot 4 and the exterior body 2 in the portion of the handle 7, but is suitably about 20 to 100% larger than the average thickness of the plating layer 6.
【００２２】外装体２内に収容された内鍋４に把手７が
取付けられている場合には、当該把手７の部分において
はその把手７を嵌合するために外装体２の構造が複雑に
なり、熱が逃げやすくなる。第二の発明ではその把手７
の下方のメッキ層６を厚くすることにより、より多くの
熱を発生させ、内鍋４の周方向に均一に発熱させること
ができるのである。When the handle 7 is attached to the inner pan 4 accommodated in the exterior body 2, the structure of the exterior body 2 is complicated because the handle 7 is fitted at the handle 7. And the heat easily escapes. In the second invention, the handle 7
By increasing the thickness of the plating layer 6 below, more heat can be generated, and heat can be uniformly generated in the circumferential direction of the inner pan 4.
【００２３】本発明の電磁誘導加熱調理容器は、前記電
磁誘導加熱炊飯器１の内鍋４として使用できるが、その
他の電磁誘導加熱機能を有する調理器具における、内容
物を収容する被加熱調理容器に適用することができる。
また、一般の電磁調理器において使用可能の調理容器に
適用することができ、鍋、フライパン、ホットプレート
などとしても適用できる。The electromagnetic induction heating cooking container of the present invention can be used as the inner pot 4 of the electromagnetic induction heating rice cooker 1, but is a heated cooking container for storing contents in other cooking utensils having an electromagnetic induction heating function. Can be applied to
Further, the present invention can be applied to a cooking container usable in a general electromagnetic cooker, and can also be applied as a pot, a frying pan, a hot plate, and the like.
【００２４】[0024]
【作用】発明者等の研究によれば、メッキ層６の厚みが
大きくなるに従って、誘導電流が有効に発生して調理容
器が発熱するために、電磁調理器具としての出力電力が
大きくなり、且つコイルから生じた磁力線が調理容器の
発熱に有効に利用されるため、コイルの不必要な発熱が
抑制される。According to the study by the inventors, as the thickness of the plating layer 6 increases, the induction current is effectively generated and the cooking vessel generates heat, so that the output power as the electromagnetic cooking appliance increases, and Since the magnetic lines of force generated from the coil are effectively used for heat generation of the cooking vessel, unnecessary heat generation of the coil is suppressed.
【００２５】図１に示す電磁誘導加熱炊飯器１におい
て、アルミニウム製の厚み２．５mmの内鍋基材５に、メ
ッキ厚みを種々に変化させたメッキ層６を形成した内鍋
４を装着し、当該内鍋４内に水を入れて入力電力５００
Ｗで１時間通電し、出力電力及び誘導加熱コイル３表面
の最高温度を測定したところ、その結果は次の表１のと
おりであった。In the electromagnetic induction heating rice cooker 1 shown in FIG. 1, an inner pan 4 having a plating layer 6 having variously varied plating thicknesses is mounted on an inner pan substrate 5 having a thickness of 2.5 mm made of aluminum. , Water into the inner pan 4 and input power 500
When power was applied for 1 hour at W and the output power and the maximum temperature of the surface of the induction heating coil 3 were measured, the results were as shown in Table 1 below.
【００２６】[0026]
【表１】 [Table 1]
【００２７】この表１の数値からも理解できるように、
メッキ層６の厚みが１３０ミクロン未満では出力電力が
不十分であると共に、誘導加熱コイル３の温度が高く、
不必要に発熱している。また３００ミクロンを超えても
出力電力は殆ど変らず、またコイル３の発熱を抑制する
効果も向上することはなく、本発明におけるメッキ層６
の厚みが必要且つ十分なのである。As can be understood from the numerical values in Table 1,
If the thickness of the plating layer 6 is less than 130 microns, the output power is insufficient, and the temperature of the induction heating coil 3 is high.
Unnecessarily generating heat. The output power hardly changes even if it exceeds 300 microns, and the effect of suppressing the heat generation of the coil 3 does not improve.
Is necessary and sufficient.
【００２８】また第一の発明の効果を確認するために、
図１に示す電磁誘導加熱炊飯器１において、アルミニウ
ム製の厚み２．５mmの内鍋基材５に厚さ２００μｍのメ
ッキ層６を形成したもの及び、それを３８０℃で３０分
間加熱処理したものを装着した。そしてその内鍋４内に
水を入れて消費電力１２００Ｗとなるように通電したと
きの、誘導加熱コイル３の実効電流、実効電圧及び、加
熱開始後３０分経過後における誘導加熱コイル３の表面
温度を測定した。その結果は次の表２のとおりであっ
た。In order to confirm the effect of the first invention,
In the electromagnetic induction heating rice cooker 1 shown in FIG. 1, a 200 μm-thick plating layer 6 is formed on an aluminum inner pan substrate 5 having a thickness of 2.5 mm, and the plate is heated at 380 ° C. for 30 minutes. Was attached. Then, the effective current and the effective voltage of the induction heating coil 3 when water is put into the inner pan 4 and the power is consumed so as to have a power consumption of 1200 W, and the surface temperature of the induction heating coil 3 30 minutes after the start of heating. Was measured. The results were as shown in Table 2 below.
【００２９】[0029]
【表２】 [Table 2]
【００３０】表２からも理解できるように、基材５にメ
ッキ層６を形成した後それを過熱処理することにより、
消費電力が同一であってもコイル３の実効電流及び実効
電圧が低下し、消費電力のより大きい部分が内鍋４の誘
導発熱に供され、誘導加熱コイルの発熱が抑制されるこ
とが判る。As can be understood from Table 2, by forming the plating layer 6 on the base material 5 and then subjecting it to overheating,
It can be seen that even if the power consumption is the same, the effective current and the effective voltage of the coil 3 are reduced, and a portion having a larger power consumption is used for the induction heating of the inner pot 4 and the heat generation of the induction heating coil is suppressed.
【００３１】[0031]
【発明の効果】従って本発明によれば、非磁性材料より
なる基材５に磁性材料のメッキ層６を形成しているの
で、鉄を主体とする調理容器に比べて軽くなり、また基
材５として熱伝導性の良好なアルミニウムや銅を使用す
ることにより、調理容器としての伝熱効率を高めること
ができる。Thus, according to the present invention, since the plating layer 6 made of a magnetic material is formed on the base material 5 made of a non-magnetic material, it is lighter than a cooking vessel mainly made of iron. By using aluminum or copper having good thermal conductivity as 5, heat transfer efficiency as a cooking container can be increased.
【００３２】また入力電力が効率よく電磁誘導加熱によ
る発熱に転換され、従来の鉄を主体とする調理容器を使
用した場合と同等の大きな出力電力が得られ、被調理物
を効率よく加熱調理することができると共に、誘導加熱
コイルが不必要に発熱することがない。Further, the input power is efficiently converted to heat generated by electromagnetic induction heating, and a large output power equivalent to that in the case of using a conventional iron-based cooking vessel is obtained, so that the object to be cooked is efficiently cooked. And the induction heating coil does not generate unnecessary heat.
【００３３】また第一の発明によれば、熱処理によりメ
ッキ層６内の格子欠陥が修復され、結晶が均質化するの
で、電磁誘導によってメッキ層６が全体に亙って均一に
且つ効率よく発熱すると共に、誘導加熱コイル３の不必
要な発熱を防止することができる。According to the first aspect of the invention, the lattice defect in the plating layer 6 is repaired by the heat treatment, and the crystal is homogenized. Therefore, the plating layer 6 uniformly and efficiently generates heat by electromagnetic induction. In addition, unnecessary heat generation of the induction heating coil 3 can be prevented.
【００３４】さらに第二の発明によれば、内鍋４の周方
向において、その構造上熱が外部に伝達されやすい把手
７の近傍を、他の部分に比べてメッキ層６の厚みを厚く
しているので、熱が外部に逃げやすい部分により多くの
熱を補給することができ、加熱むらが生じることがなく
均一に加熱することができる。Further, according to the second invention, the thickness of the plating layer 6 in the vicinity of the handle 7 where heat is easily transmitted to the outside in the circumferential direction of the inner pot 4 is increased as compared with other portions. Therefore, more heat can be supplied to a portion where heat can easily escape to the outside, and uniform heating can be performed without causing uneven heating.
【図１】 内鍋として本発明を適用した電磁誘導加熱炊
飯器の中央縦断面図FIG. 1 is a central longitudinal sectional view of an electromagnetic induction heating rice cooker to which the present invention is applied as an inner pot.
【図２】 前記炊飯器の把手を有する内鍋の中央縦断面
図FIG. 2 is a central longitudinal sectional view of an inner pot having a handle of the rice cooker.
【図３】 前記内鍋のIII−III断面図 ３ 誘導加熱コイル ４ 調理容器（内鍋） ５ 基材 ６ メッキ層 ７ 把手 ８ 厚み増大部FIG. 3 is a sectional view of the inner pan taken along the line III-III. 3 Induction heating coil 4 Cooking vessel (inner pan) 5 Base material 6 Plating layer 7 Handle 8 Thickness increasing portion
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｈ０５Ｂ 6/12 ３１４ Ｈ０５Ｂ 6/12 ３１４ (56)参考文献 特開 平９−3576（ＪＰ，Ａ) 特開 平９−157886（ＪＰ，Ａ) 特開 平６−304065（ＪＰ，Ａ) 特開 平９−75225（ＪＰ，Ａ) 特開 平８−228911（ＪＰ，Ａ) 実公 平６−22953（ＪＰ，Ｙ２) (58)調査した分野(Int.Cl.7，ＤＢ名) A47J 27/00 103 A47J 27/00 104 A47J 27/00 107 A47J 36/02 H05B 6/12 314 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI H05B 6/12 314 H05B 6/12 314 (56) References JP-A-9-3576 (JP, A) JP-A 9-157886 (JP, A) JP-A-6-304065 (JP, A) JP-A-9-75225 (JP, A) JP-A-8-228911 (JP, A) JP-A-6-22953 (JP, Y2) ( 58) Field surveyed (Int.Cl. 7 , DB name) A47J 27/00 103 A47J 27/00 104 A47J 27/00 107 A47J 36/02 H05B 6/12 314
Claims (4)
に、磁性を有する金属よりなる１３０〜３００ミクロン
のメッキ層（６）を形成すると共に、その基材（５）の
内面にフッ素樹脂層を形成し、然る後１８０℃以上５０
０℃未満の温度に加熱してなることを特徴とする、電磁
誘導加熱調理容器1. A plating layer (6) of 130 to 300 microns made of a magnetic metal is formed on the outer surface of a substrate (5) made of a non-magnetic material .
Form a fluororesin layer on the inner surface, and then
An electromagnetic induction heating cooking container characterized by being heated to a temperature lower than 0 ° C.
に、磁性を有する金属よりなる１３０〜３００ミクロン130-300 microns made of magnetic metal
のメッキ層（６）を形成し、調理容器（４）の周方向にTo form a plating layer (6) on the periphery of the cooking vessel (4).
おいて、当該調理容器（４）に取付けられた把手（７）And a handle (7) attached to the cooking container (4).
の近傍を、他の部分に比べて前記メッキ層（６）の厚みNear the thickness of the plating layer (6) as compared with other portions.
を厚くしたことを特徴とする、電磁誘導加熱調理容器Induction heating cooking container characterized by thickening
アルミニウム又は銅であることを特徴とする、請求項１
又は２に記載の電磁誘導加熱調理容器 3. The non-magnetic material constituting the substrate (5) is aluminum or copper.
Or the electromagnetic induction heating cooking container according to 2.
する金属が、鉄、コバルト、ニッケル、ルテニウム、ロ
ジウム、パラジウム、オスミウム、イリジウム若しくは
白金又はこれらの合金であることを特徴とする、請求項
１、２又は３に記載の電磁誘導加熱調理容器 4. The method according to claim 1, wherein the magnetic metal forming the plating layer is iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium, iridium, platinum or an alloy thereof. Item 4. The electromagnetic induction heating cooking container according to item 1, 2 or 3
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18786498A JP3287549B2 (en) | 1997-07-02 | 1998-07-02 | Electromagnetic induction heating cooking container |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9-193074 | 1997-07-02 | ||
| JP19307497 | 1997-07-02 | ||
| JP18786498A JP3287549B2 (en) | 1997-07-02 | 1998-07-02 | Electromagnetic induction heating cooking container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1170043A JPH1170043A (en) | 1999-03-16 |
| JP3287549B2 true JP3287549B2 (en) | 2002-06-04 |
Family
ID=26504614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18786498A Expired - Lifetime JP3287549B2 (en) | 1997-07-02 | 1998-07-02 | Electromagnetic induction heating cooking container |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3287549B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5159578B2 (en) * | 2008-11-25 | 2013-03-06 | 株式会社東芝 | Toilet seat device |
| KR101452291B1 (en) * | 2013-11-05 | 2014-10-22 | (주)훼니코 | Methods of fabricating cooking utensils for induction heating |
| JP6299440B2 (en) * | 2014-05-30 | 2018-03-28 | タイガー魔法瓶株式会社 | Hot plate |
| JP2015226615A (en) * | 2014-05-30 | 2015-12-17 | タイガー魔法瓶株式会社 | Hot plate |
-
1998
- 1998-07-02 JP JP18786498A patent/JP3287549B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1170043A (en) | 1999-03-16 |
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