JPH03295192A - Microwave absorption heating element for microwave oven - Google Patents
Microwave absorption heating element for microwave ovenInfo
- Publication number
- JPH03295192A JPH03295192A JP9609890A JP9609890A JPH03295192A JP H03295192 A JPH03295192 A JP H03295192A JP 9609890 A JP9609890 A JP 9609890A JP 9609890 A JP9609890 A JP 9609890A JP H03295192 A JPH03295192 A JP H03295192A
- Authority
- JP
- Japan
- Prior art keywords
- microwave
- heating element
- coating
- microwave oven
- coated
- 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.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 80
- 238000010521 absorption reaction Methods 0.000 title abstract description 4
- 239000000463 material Substances 0.000 claims abstract description 70
- 238000000576 coating method Methods 0.000 claims abstract description 38
- 239000011248 coating agent Substances 0.000 claims abstract description 37
- 239000011358 absorbing material Substances 0.000 claims abstract description 3
- 239000000126 substance Substances 0.000 claims description 17
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 239000000843 powder Substances 0.000 abstract description 14
- 229910000859 α-Fe Inorganic materials 0.000 abstract description 11
- 239000011230 binding agent Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 239000011888 foil Substances 0.000 abstract description 5
- 239000000758 substrate Substances 0.000 abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000945 filler Substances 0.000 abstract description 3
- 239000000377 silicon dioxide Substances 0.000 abstract description 2
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 235000013305 food Nutrition 0.000 description 18
- 239000002510 pyrogen Substances 0.000 description 12
- 239000010408 film Substances 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000010411 cooking Methods 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 230000020169 heat generation Effects 0.000 description 7
- 239000000919 ceramic Substances 0.000 description 6
- 229910010271 silicon carbide Inorganic materials 0.000 description 6
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 6
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 235000015220 hamburgers Nutrition 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 229910003465 moissanite Inorganic materials 0.000 description 3
- 239000006082 mold release agent Substances 0.000 description 3
- 235000013550 pizza Nutrition 0.000 description 3
- 229910052878 cordierite Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 2
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 2
- 239000000796 flavoring agent Substances 0.000 description 2
- 235000019634 flavors Nutrition 0.000 description 2
- 230000001698 pyrogenic effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 229910000505 Al2TiO5 Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011437 continuous method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- AABBHSMFGKYLKE-SNAWJCMRSA-N propan-2-yl (e)-but-2-enoate Chemical compound C\C=C\C(=O)OC(C)C AABBHSMFGKYLKE-SNAWJCMRSA-N 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000004447 silicone coating Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Constitution Of High-Frequency Heating (AREA)
- Cookers (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は電子レンジのマイクロ波を吸収して自己発熱す
る発熱体に関するものであり、ざらに詳しくは、電子レ
ンジの中で食品を載置したり、あるいは食品に当接させ
て、食品に焼コゲを形成させたり、あるいは直火を必要
とする色々な熱処理に利用できる発熱体に関するもので
ある。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a heating element that self-heats by absorbing microwaves from a microwave oven. The present invention relates to a heating element that can be used to heat food, to form burnt burnt spots on food by bringing it into contact with food, or to be used for various heat treatments that require direct flame.
〈従来の技術〉
電子レンジでは、照射されたマイクロ波が被調理物中に
含まれる水などの分子に吸収され調理物自身が直接加熱
されることにより調理されるものであり、一般に短時間
に調理できるという利点を有する。その反面、オーブン
、ガスレンジ、抵抗加熱型、炭焼など直火調理のように
食品表面を焼焦がしたりすることができないため風味に
乏しく、調理食品種が限定される欠点を有していた。<Prior art> In a microwave oven, irradiated microwaves are absorbed by molecules such as water contained in the food to be cooked, and the food itself is directly heated, thereby cooking the food in a short period of time. It has the advantage of being able to be cooked. On the other hand, since it is not possible to scorch the surface of the food unlike direct flame cooking methods such as ovens, gas ranges, resistance heating types, and charcoal grills, it has the disadvantage of lacking in flavor and limiting the types of food that can be cooked.
上記欠点を除去するため種々の方法が提案されてあり、
その−例として電子レンジの中に別回路にて電熱ヒータ
ーなどの発熱体を設置して食品の表面を焦がしながら同
時にマイクロ波による加熱ができるオーブン機構をとも
なった電子レンジ、いわゆるオーブンレンジが市販され
ている。しかし構造が複雑になり大型化し、電力消費が
著しく増大するため価格的に高くなるといった問題があ
る。Various methods have been proposed to eliminate the above drawbacks,
For example, a so-called microwave oven is commercially available, which has an oven mechanism that can burn the surface of food and simultaneously heat it with microwaves by installing a heating element such as an electric heater in a separate circuit inside the microwave oven. ing. However, there are problems in that the structure becomes complicated and large, and power consumption increases significantly, resulting in an increase in price.
これに対して既存の電子レンジでマイクロ波のエネルギ
ーを吸収して発熱する発熱物質（フェライト、炭素、炭
化珪素、金属粉末、チタン酸バリウムなど）を利用して
食品に焦げ目をつけたり、熱効率を向上させることがで
きる発熱体および容器か考案されており、フェライト、
ＳｉＣなどの焼結体あるいはこれらを組込んだ磁器、耐
熱性基材に金属または金属酸化物を蒸着したもの、ある
いは上記発熱物質をコーティングしたものなどがある。In contrast, existing microwave ovens use exothermic substances (ferrite, carbon, silicon carbide, metal powder, barium titanate, etc.) that absorb microwave energy and generate heat to brown food and improve thermal efficiency. A heating element and container that can be made of ferrite,
Examples include sintered bodies such as SiC, porcelain incorporating these, metals or metal oxides deposited on a heat-resistant base material, and coated with the above-mentioned exothermic substances.
しかしこれらの発熱体は発熱特性が悪く焦げ目を付ける
には至らない、急激な発熱による熱衝撃に耐えられない
、高価格であるなどの問題も多いが、さらに電子レンジ
庫内のマイクロ波のムラおよび容器などの形状効果によ
り均一に発熱することなく周辺部のみ、あるいは逆に中
心部のみ著しく焦げ、他の部分は全く焦げ目がつかない
といった加熱ムラという大きな課題があり未だ解決され
ていない。However, these heating elements have many problems, such as poor heat generation properties that do not result in browning, inability to withstand thermal shock caused by sudden heat generation, and high prices. Also, due to shape effects of the container, heat is not generated uniformly, and only the periphery or, conversely, the center is noticeably charred, with other parts not being charred at all, which is a major problem that has not yet been resolved.
〈発明が解決しようとする課題〉
本発明は、かかる点に鑑みてなされたもので既存の電子
レンジを用いてオーブン調理ができ、しかもその発熱体
が安価で、十分な発熱特性を有し、かつ均一に発熱し加
熱ムラのない物を提供せんとするものである。<Problems to be Solved by the Invention> The present invention has been made in view of the above points, and can be used for oven cooking using an existing microwave oven, and the heating element thereof is inexpensive and has sufficient heat generation characteristics. The object is to provide a product that generates heat uniformly and has no uneven heating.
く課題を解決するための手段〉 上記課題は下記構造の発熱体によって解決される。Means to solve problems〉 The above problem is solved by a heating element having the following structure.
■ 基材の表面にマイクロ波吸収発熱材料が被覆された
構造の電子レンジ用マイクロ波吸収発熱体であって、該
基材の中央部と周辺部の被膜厚さを変えることによって
、該被膜の表面温度を均一にしてなることを特徴とする
電子レンジ用マイクロ波吸収発熱体。■ A microwave-absorbing heat-generating element for microwave ovens having a structure in which the surface of a base material is coated with a microwave-absorbing heat-generating material; A microwave-absorbing heating element for microwave ovens, which is characterized by having a uniform surface temperature.
■ 基材の表面にマイクロ波吸収発熱材料が被覆された
構造の電子レンジ用マイクロ波吸収発熱体であって、該
基材の中央部と周辺部で該被膜中のマイクロ波吸収物質
の濃度を変えることによって、該被膜の表面温度を均一
にしてなることを特徴とする電子レンジ用マイクロ波吸
収発熱体。■ A microwave-absorbing heat-generating element for microwave ovens having a structure in which the surface of a base material is coated with a microwave-absorbing heat-generating material, and the concentration of the microwave-absorbing substance in the coating is reduced in the center and periphery of the base material. 1. A microwave-absorbing heating element for a microwave oven, characterized in that the surface temperature of the coating is made uniform by changing the temperature of the coating.
■ 基材の表面にマイクロ波吸収発熱材料か被覆された
構造の電子レンジ用マイクロ波吸収発熱体であって、該
基材の中央部と周辺部の被膜の材質を変えることによっ
て、該被膜の表面温度を均一にしてなることを特徴とす
る電子レンジ用マイクロ波吸収発熱体。■ A microwave-absorbing heat-generating element for microwave ovens having a structure in which the surface of a base material is coated with a microwave-absorbing heat-generating material, and by changing the material of the coating in the center and peripheral areas of the base material, A microwave-absorbing heating element for microwave ovens, which is characterized by having a uniform surface temperature.
■ 基材の表面にマイクロ波吸収発熱材料が被覆された
構造の電子レンジ用マイクロ波吸収発熱体であって、被
膜の高発熱部に非発熱材料あるいは低発熱材料を被覆す
ることによって、該被膜の表面温度を均一にしてなるこ
とを特徴とする電子レンジ用マイクロ波吸収発熱体。■ A microwave-absorbing heat-generating element for microwave ovens having a structure in which the surface of the base material is coated with a microwave-absorbing heat-generating material, and the high heat-generating portion of the film is coated with a non-heat-generating material or a low-heat-generating material. A microwave-absorbing heating element for use in a microwave oven, characterized in that the surface temperature of the heating element is uniform.
■ 基材の表面にマイクロ波吸収発熱材料が被覆された
構造の電子レンジ用マイクロ波吸収発熱体であって、該
被膜の高発熱部をシールドするマイクロ波反射板をもう
けてなることを特徴とする電子レンジ用マイクロ波吸収
発熱体。■ A microwave-absorbing heat-generating element for a microwave oven having a structure in which the surface of a base material is coated with a microwave-absorbing heat-generating material, and is characterized by having a microwave reflecting plate that shields the high heat-generating portion of the coating. Microwave absorption heating element for microwave ovens.
■ 板状基材の表面にマイクロ波吸収材料が被覆された
構造の電子レンジ用マイクロ波吸収発熱体であって、該
基材の中央部と周辺部の板厚を変えることによって、該
被膜の表面温度を均一にしてなることを特徴とする電子
レンジ用マイクロ波吸収発熱体。■ A microwave-absorbing heating element for microwave ovens that has a structure in which the surface of a plate-shaped base material is coated with a microwave-absorbing material, and by changing the thickness of the central part and peripheral part of the base material, the thickness of the coating can be increased. A microwave-absorbing heating element for microwave ovens, which is characterized by having a uniform surface temperature.
■ メツシュ構造の基材の表面にマイクロ波吸収発熱材
料が被覆された構造のものであって、該基材の中央部と
周辺部のメツシュの線径を変えることによって、該中央
部と周辺部の表面温度を均一にしてなることを特徴とす
る電子レンジ用マイクロ波吸収発熱体。■ It has a structure in which the surface of a base material with a mesh structure is coated with a microwave absorbing heat generating material, and by changing the wire diameter of the mesh in the center and periphery of the base, the center and periphery can be A microwave-absorbing heating element for use in a microwave oven, characterized in that the surface temperature of the heating element is uniform.
く作用〉
本発明の発熱体は基材表面に被覆された発熱物質の被覆
層が電子レンジより発せられるマイクロ波を吸収して自
己発熱することにより、急速に高温に到達する。Effect> The heating element of the present invention rapidly reaches a high temperature because the coating layer of the heating substance coated on the surface of the base material absorbs microwaves emitted from a microwave oven and generates heat by itself.
被調理物をこの発熱体の上に載置したり、あるいは発熱
体を被調理物に当接させて置くと、この発熱体の伝導熱
および放射熱により被調理物に焦げ目をつけることがで
きるものである。When the food to be cooked is placed on top of this heating element or the heating element is placed in contact with the food to be cooked, the food to be cooked can be browned by the conductive heat and radiant heat of this heating element. It is something.
電子レンジ内のマイクロ波の放剣密度は通常、場所によ
って、・特に中央部と周辺部てムラがあるために、電子
レンジ内に置かれた発熱体の表面温度は場所によって著
しく異なってくる。本発明は発熱物質の次のような特性
に着目してこの温度ムラの解消を図る。The radiation density of microwaves in a microwave oven is usually uneven depending on the location, especially in the center and the periphery, so the surface temperature of the heating element placed in the microwave oven differs significantly depending on the location. The present invention aims to eliminate this temperature unevenness by focusing on the following characteristics of the exothermic substance.
０発熱物質のコーテイング膜の膜厚を変え発熱効率を変
える。0 The heat generation efficiency is changed by changing the thickness of the coating film of the pyrogenic substance.
膜厚と発熱温度が比例関係にあることに着目して積極的
に発熱させたい部位を厚く、逆の部位は薄く塗布するこ
とで温度ムラを解消する。膜厚は発熱物質の種類や最高
加熱温度によって変わってくるが、概ね０．１〜３．０
ｍｍの範囲に調整する。厚膜から薄膜の変化は膜厚が徐
々に変化する、いわゆる連続方式、あるいは、ある所を
境にして急激に変化する非連続方式、いずれでもかまわ
ない。Focusing on the fact that there is a proportional relationship between film thickness and heat generation temperature, temperature unevenness can be eliminated by applying thicker coatings to areas where you want to actively generate heat and thinner coatings to areas where you want to actively generate heat. The film thickness varies depending on the type of exothermic substance and maximum heating temperature, but is generally 0.1 to 3.0.
Adjust to within mm. The change from a thick film to a thin film may be either a so-called continuous method in which the film thickness changes gradually, or a discontinuous method in which the film thickness changes abruptly after a certain point.
■被膜中の発熱物質の濃度を変えて発熱効率を変える。■Changing the heat generation efficiency by changing the concentration of the pyrogen in the film.
５ｉ０２、Ａ、１１２０３などの非発熱物質を混合する
ことによって発熱物質の濃度を調整し、積極的に発熱さ
せたい部位の濃度を高め、そうでない部位は低濃度の被
膜を施すことによって解消を図る。この際、非発熱物質
の代りに低効率発熱物質（例えば、Ｚｎ−フェライト、
ＳｉＣなど）を用いることができる。濃度の変化はＯか
ら１００％の範囲で連続、あるいは非連続に変えること
ができる。Adjust the concentration of the pyrogenic substance by mixing non-pyrogenic substances such as 5i02, A, 11203, increase the concentration in areas where you want to actively generate heat, and apply a low concentration coating to areas where it is not necessary to eliminate the problem. . At this time, a low-efficiency pyrogen (e.g., Zn-ferrite,
SiC, etc.) can be used. The concentration can be changed continuously or discontinuously within a range from 0 to 100%.
■発熱体特定部位の被膜表面に非発熱あるいは低効率発
熱物質を被覆することで、発熱物質により発生した熱が
非発熱あるいは低効率発熱物質を加熱するのに奪われる
ため、これらを被覆していない部位に比べ熱効率を低下
させることができ、熱効率を変えることができる。■By coating the coating surface of a specific part of the heating element with a non-heat generating or low-efficiency heating substance, the heat generated by the heating substance is taken away to heat the non-heat generating or low-efficiency heating substance. It is possible to lower the thermal efficiency compared to a part without it, and it is possible to change the thermal efficiency.
非発熱物質は上記５ｉ０２、Ａｇ２Ｏ３、ＺｒＯ２、ム
ライトなどであり、低効率発熱物質は使用する発熱物質
に比へて発熱効率が劣るものであれば良く、特定される
ものではないがＺｎ−フェライト、ＳｉＣなどがこれに
該当する。Non-pyrogenic substances include the above-mentioned 5i02, Ag2O3, ZrO2, mullite, etc., and low-efficiency pyrogenic substances may be those having inferior heat generating efficiency compared to the pyrogenic substance used, and are not specified, but include Zn-ferrite, This includes SiC and the like.
■発熱体の特定部位のマイクロ波の入射する側を金属な
どのマイクロ波反射性物質でシールドすることにより、
入射マイクロ波を制限することができるため、シールド
のない部位を積極的に発熱させ熱効率を変えるものであ
る。■By shielding the microwave incident side of the specific part of the heating element with a microwave reflective material such as metal,
Since it is possible to limit the incident microwaves, it actively generates heat in unshielded areas and changes thermal efficiency.
■上記発熱体が板状の場合はその厚みを、メツシュ構造
の場合はメツシュの線径を変えることによって、厚みの
厚い部位あるいは線径の大きい部位では、発熱によって
発生した熱が基材を加熱するのに奪われて熱効率が低下
するものである。■If the heating element is plate-shaped, by changing its thickness, or if it has a mesh structure, by changing the wire diameter of the mesh, the heat generated will heat the base material in thick areas or areas with large wire diameter. However, the thermal efficiency decreases.
基材の形状は目的、用途に応じて適宜考えることができ
る。The shape of the base material can be determined as appropriate depending on the purpose and use.
また材質も金属からセラミックスまで幅広く選択するこ
とができる。上記発熱物質としてはフェライトやＳｉＣ
など種々のものが使用することができ、なんら制約を受
けるものではない。Furthermore, the material can be selected from a wide range of materials, from metals to ceramics. The above exothermic substances include ferrite and SiC.
Various materials such as the above can be used without any restrictions.
〈実施例〉
本発明の代表的な実施例を図面により説明する。第１図
から第８図は本発明の代表的な実施例の断面構造を説明
した図である。<Example> Representative examples of the present invention will be described with reference to the drawings. FIGS. 1 to 8 are diagrams illustrating the cross-sectional structure of typical embodiments of the present invention.
第１図から第８図において１は基材、２は基材表面に被
覆された発熱物質被膜、２ａ、２ｂは被膜中の発熱物質
の濃度が異なる被膜で２ａは高濃度、２ｂは低濃度のも
のである。In Figures 1 to 8, 1 is a base material, 2 is a pyrogen coating coated on the surface of the base material, 2a and 2b are coatings with different concentrations of pyrogen in the coatings, 2a is a high concentration, and 2b is a low concentration. belongs to.
３は非発熱物質被膜、４はシールド材、５はシールド拐
を装着した容器である。６は発熱体、７は被調理物、８
は食品の離型性あるいは金属基材の防錆性を付与するた
めの離型剤被膜である。3 is a container equipped with a non-pyrogen coating, 4 is a shielding material, and 5 is a shielding material. 6 is a heating element, 7 is a food to be cooked, 8
is a mold release agent coating for imparting mold releasability to foods or rust prevention to metal substrates.
基材１は３００’Ｃ以上の高温に耐え得る耐熱性のもの
が適しており、金属ではＡＮ 、 Ｆｅ、ＣＬＩ、普通
鋼、合金網、ステンレスなど幅広く使用可能である。セ
ラミックス製基材としても一般の陶磁器からいわゆるニ
ューセラミックスまで幅広く選択できるがコーディエラ
イト系、リチウム−アルミニウムーシリカ系、チタン酸
アルミニウム系、ＢＮ系などの耐熱衝撃性の強いものが
望ましい。The base material 1 is suitably heat resistant and can withstand high temperatures of 300'C or higher, and a wide variety of metals such as AN, Fe, CLI, common steel, alloy mesh, and stainless steel can be used. Ceramic base materials can be selected from a wide range of materials, from general ceramics to so-called new ceramics, but materials with strong thermal shock resistance such as cordierite, lithium-aluminum-silica, aluminum titanate, and BN are preferred.
実施例１
因みに第１図の構造で直径１３ｃｍ、厚さＱ、５ｍｍの
鉄製円板にＦｅ３Ｏ４粉末を発熱物質として無機バイン
ダーと混合して中心部が厚くなるように塗布し、乾燥後
６００℃、３０ｍ１ｎで焼成を行い発熱体とした。これ
に直径１２ｃｍのピザを載せて家庭用電子レンジで加熱
調理したところ、発熱体の温度は約６０秒で３２０℃に
達し、ピザのクラフトに全面ムラなくクリスピー性が付
き良好な風味を有した。同様に全面を均一に被覆した発
熱体について調理を行ったところ、周辺部は焦げ過ぎた
が中心部はまったくクリスピー性がなく加熱ムラが著し
かった。Example 1 Incidentally, Fe3O4 powder was mixed with an inorganic binder as a heat generating substance on an iron disk having the structure shown in Fig. 1, and had a diameter of 13 cm, a thickness of Q, and an inorganic binder. After drying, the mixture was coated at 600°C. A heating element was obtained by firing at 30 m1n. When a pizza with a diameter of 12 cm was placed on this and cooked in a household microwave oven, the temperature of the heating element reached 320°C in about 60 seconds, and the pizza was evenly crispy and had a good flavor. . Similarly, when cooking was carried out using a heating element whose entire surface was uniformly coated, the periphery was overly burnt, but the center was not crispy at all and heating was extremely uneven.
実施例２
第２図の構造のもので直径１３ｃｍ厚さ１００μｍのＡ
、Ｑ箔に、Ｆｅ−７ｎフエライト粉末と５ｉ０２粉末を
フィラーとして無機バインダーと混合した被覆剤を塗布
し、乾燥後、４５０’Ｃ１２ＱＣ１２Ｑて焼き付は発熱
体とした。塗布する際、中心部は重量％てフェライト粉
末か９０％、周辺部は７０％の被覆剤を用いた。これに
電子レンジにてマイクロ波を照射し温度を測定したとこ
ろ、中心部は約６０秒で２５０’Ｃ１周辺部は２７０’
Ｃとほぼ均一に発熱した。Example 2 A having the structure shown in Fig. 2 and having a diameter of 13 cm and a thickness of 100 μm.
A coating material containing Fe-7n ferrite powder and 5i02 powder as fillers mixed with an inorganic binder was applied to Q foil, and after drying, it was baked with 450'C12QC12Q to form a heating element. During coating, 90% by weight of ferrite powder was used in the center and 70% by weight of the coating material in the peripheral area. When we irradiated this with microwaves in a microwave oven and measured the temperature, the temperature at the center was 250'C1 for about 60 seconds, and at the periphery it was 270'C.
It generated heat almost uniformly as C.
実施例３
第３図のＩｆ４造のもので直径１３ｃｍ厚さ２ｍｍのコ
ーディエライト系セラミックス板に、Ｆｅ−Ｚｎｎ系フ
シイ１〜粉末を無機バインダーと混合して被覆した後、
周辺部の被膜の上に比熱の犬なるジルコニア粉末をフィ
ラーとした被覆剤を被覆し、５００’Ｃ１３Ｃ１３Ｏで
焼成を行い発熱体とした。同様に発熱温度を測定したと
ころ、約６０秒で中心部は２６０°Ｃ１周辺部は２７５
℃とほぼ均一であった。Example 3 A cordierite ceramic plate of If4 construction shown in Fig. 3 with a diameter of 13 cm and a thickness of 2 mm was coated with Fe-Znn-based Fushii 1~ powder mixed with an inorganic binder.
A coating material containing zirconia powder as a filler having a specific heat was coated on the peripheral film, and the material was fired at 500'C13C13O to obtain a heating element. When the temperature of the heat generated was measured in the same way, the temperature at the center was 260°C in about 60 seconds, and the temperature at the periphery was 275°C.
The temperature was almost uniform.
実施例４
第４図の構造のもので、基材に１０ｃｍ角のＡβ２０３
３ ｉ Ｑ２系のセラミックス繊維シートを用いて、Ｆ
ｅ３Ｏ４粉末を発熱物質として無機バインダーと混合し
てシートの片面に塗布し、５００℃、３０ｍ１ｎで焼成
して発熱体とし、さらにもう一方の面の中央部にＡｌ１
箔をはりつけた。これを電子レンジにて加熱したところ
約３０秒で、八で箔かない場合は中心部だけが著しく発
熱して赤熱し、周辺部は１５０℃にしか昇温しなかった
が、ＡＮ箔を装着すると中心部へのマイクロ波の入射が
抑制されるため全面はぼ均一に３００℃に達した。Example 4 With the structure shown in Fig. 4, a 10 cm square piece of Aβ203 was placed on the base material.
3 i Using Q2 ceramic fiber sheet, F
e3O4 powder is mixed with an inorganic binder as a heat generating substance, applied to one side of the sheet, fired at 500°C and 30m1n to form a heat generating body, and Al1 is added to the center of the other side.
I applied foil. When I heated this in a microwave oven, it took about 30 seconds.If there was no foil, only the center part became extremely hot and red hot, and the peripheral part only rose to 150 degrees Celsius, but when AN foil was attached, Since the incidence of microwaves into the center was suppressed, the entire surface reached 300° C. almost uniformly.
実施例５
線径Ｑ、５ｍｍ、目開き５ｍｍの鉄製網に、Ｎｉフェラ
イト粉末を無機バインダーと混合して塗布し、焼き付は
発熱体とした。これに第５図のように、ポリプロピレン
製容器にＡ、ｌｌｉを周辺部に装着したシールドボック
スを発熱体に接触しないように設置して、発熱体の上に
冷凍ハンバーグを載せて電子レンジにて６０秒調理を行
ったところ、発熱体と接している面には均一に網状の焦
げ目が付き、しかもシールドボックスにてハンバーグ中
の水分が蒸発するのが防止できたため、ハンバーグが乾
燥することなくふっくらと仕上がった。Example 5 Ni ferrite powder mixed with an inorganic binder was coated on an iron mesh having a wire diameter Q of 5 mm and an opening of 5 mm, and the baking was performed as a heating element. As shown in Figure 5, a shield box with A and lli attached to the periphery is installed in a polypropylene container so as not to come into contact with the heating element, and a frozen hamburger is placed on top of the heating element and placed in a microwave oven. After cooking for 60 seconds, the side that was in contact with the heating element had a uniform network of brown marks, and since the shield box prevented the moisture in the hamburger from evaporating, the hamburger remained fluffy without drying out. It was finished.
実施例６
厚さ０．８ｍｍの鉄板をエツチング処理にて中心部を薄
層化して凹状にしたものを基材として、ＳｉＣ粉末を無
機バインダーにて焼き付は被覆し、第６図あるいは第７
図のような発熱体を作製した。これらを電子レンジにて
マイクロ波加熱を行い温度を測定したところ、約６０秒
で第６図の構造のものは中心部が２４０℃、周辺部が２
８０℃であり、第７図の構造のものは中心部が３００℃
、周辺部が２６０℃に達した。Example 6 An iron plate with a thickness of 0.8 mm was etched to make the center thinner and have a concave shape as a base material, and SiC powder was baked and coated with an inorganic binder.
A heating element as shown in the figure was fabricated. When these were heated in a microwave oven and the temperature was measured, the temperature of the structure shown in Figure 6 was 240℃ at the center and 240℃ at the periphery in about 60 seconds.
80℃, and the structure shown in Figure 7 has a temperature of 300℃ in the center.
, the peripheral area reached 260°C.
この発熱体の金属面側にシリコーン系離型剤を焼き付は
被覆を行い、ピザを載せて電子レンジで調理したところ
全面ムラなくクリスピー性が付き、さらにシリコーン被
膜により食品の離型性が向上するとともに鉄製基材の防
錆効果もあった。The metal side of this heating element is coated with a silicone mold release agent, and when a pizza is placed on it and cooked in a microwave oven, the entire surface becomes evenly crispy, and the silicone coating improves the mold release properties of the food. At the same time, it also had a rust-preventing effect on the iron base material.
ざらに第８図のような中心部と周辺部の線径が異なる金
属製の網状構造物を基材とした発熱体について同様にテ
ストを行ったが、全面ムラなく発熱することができた。A similar test was conducted on a heating element made of a metal network structure with different wire diameters in the center and periphery as shown in FIG. 8, and was able to generate heat evenly over the entire surface.
〈発明の効果〉
本発明は以上説明したように、部位によって発熱効率を
変えることで発熱体全面を均一に発熱させることができ
るため、被調理物をムラなく焦げ目を付けるなどのオー
ブン調理をすることができる。ざらに食品の加熱ムラに
合わせた発熱をさせることも可能であり、電子レンジ調
理の課題である加熱ムラをも完全に解消することができ
る。また発熱体の製造方法も簡便で、安価な基材および
発熱物質を選定することで安価な発熱体を製造すること
ができる。<Effects of the Invention> As explained above, the present invention can generate heat uniformly over the entire surface of the heating element by changing the heat generation efficiency depending on the part, so it is possible to perform oven cooking such as browning the food evenly. be able to. It is also possible to generate heat that roughly matches the uneven heating of food, and it is also possible to completely eliminate uneven heating, which is a problem with microwave cooking. Furthermore, the method for manufacturing the heating element is simple, and by selecting an inexpensive base material and a heating substance, an inexpensive heating element can be manufactured.
第１図から第７図は本発明の代表的な発熱体の断面構造
の図であり、第８図はメツシュ状基材の上面図である。
１・・・基材
２・・・発熱物質被膜
高濃度発熱物質被膜
低濃度発熱物質被膜
非発熱物質被膜
シールド材
シールドボックス
発熱体
被調理物
離型剤被膜1 to 7 are diagrams of a cross-sectional structure of a typical heating element of the present invention, and FIG. 8 is a top view of a mesh-like base material. 1... Base material 2... Pyrogen coating High concentration pyrogen coating Low concentration pyrogen coating Non-pyrogen coating Shielding material Shield box Heating element Cooking object Mold release agent coating
Claims (7)
た構造の電子レンジ用マイクロ波吸収発熱体であって、
該基材の中央部と周辺部の被膜厚さを変えることによっ
て、該被膜の表面温度を均一にしてなることを特徴とす
る電子レンジ用マイクロ波吸収発熱体。(1) A microwave absorbing heating element for a microwave oven having a structure in which the surface of a base material is coated with a microwave absorbing heating material,
A microwave-absorbing heating element for a microwave oven, characterized in that the surface temperature of the coating is made uniform by changing the thickness of the coating at the center and periphery of the base material.
た構造の電子レンジ用マイクロ波吸収発熱体であって、
該基材の中央部と周辺部で該被膜中のマイクロ波吸収物
質の濃度を変えることによって、該被膜の表面温度を均
一にしてなることを特徴とする電子レンジ用マイクロ波
吸収発熱体。(2) A microwave absorbing heating element for a microwave oven having a structure in which the surface of a base material is coated with a microwave absorbing heating material,
A microwave-absorbing heating element for a microwave oven, characterized in that the surface temperature of the coating is made uniform by varying the concentration of the microwave-absorbing substance in the coating between the center and the periphery of the base.
た構造の電子レンジ用マイクロ波吸収発熱体であって、
該基材の中央部と周辺部の被膜の材質を変えることによ
つて、該被膜の表面温度を均一にしてなることを特徴と
する電子レンジ用マイクロ波吸収発熱体。(3) A microwave absorbing heating element for a microwave oven having a structure in which the surface of a base material is coated with a microwave absorbing heating material,
1. A microwave-absorbing heating element for a microwave oven, characterized in that the surface temperature of the coating is made uniform by changing the material of the coating in the central part and the peripheral part of the base material.
た構造の電子レンジ用マイクロ波吸収発熱体であって、
被膜の高発熱部に非発熱材料あるいは低発熱材料を被覆
することによつて、該被膜の表面温度を均一にしてなる
ことを特徴とする電子レンジ用マイクロ波吸収発熱体。(4) A microwave absorbing heating element for a microwave oven having a structure in which the surface of a base material is coated with a microwave absorbing heating material,
1. A microwave-absorbing heating element for a microwave oven, characterized in that the surface temperature of the coating is made uniform by coating the high-heat-generating portion of the coating with a non-heat-generating material or a low-heat-generating material.
た構造の電子レンジ用マイクロ波吸収発熱体であつて、
該被膜の高発熱部をシールドするマイクロ波反射板をも
うけてなることを特徴とする電子レンジ用マイクロ波吸
収発熱体。(5) A microwave absorbing heating element for a microwave oven having a structure in which the surface of a base material is coated with a microwave absorbing heating material,
A microwave absorbing heating element for a microwave oven, comprising a microwave reflecting plate that shields a high heat generating part of the coating.
た構造の電子レンジ用マイクロ波吸収発熱体であつて、
該基材の中央部と周辺部の板厚を変えることによって、
該被膜の表面温度を均一にしてなることを特徴とする電
子レンジ用マイクロ波吸収発熱体。(6) A microwave-absorbing heating element for a microwave oven having a structure in which the surface of a plate-shaped base material is coated with a microwave-absorbing material,
By changing the thickness of the central and peripheral parts of the base material,
A microwave absorbing heating element for a microwave oven, characterized in that the surface temperature of the coating is made uniform.
材料が被覆された構造のものであつて、該基材の中央部
と周辺部のメッシュの線径を変えることによって、該中
央部と周辺部の表面温度を均一にしてなることを特徴と
する電子レンジ用マイクロ波吸収発熱体。(7) A structure in which the surface of a mesh-structured base material is coated with a microwave-absorbing heat-generating material, and by changing the wire diameter of the mesh in the central part and peripheral part of the base material, A microwave-absorbing heating element for a microwave oven, which is characterized by making the surface temperature of the surrounding area uniform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9609890A JPH03295192A (en) | 1990-04-10 | 1990-04-10 | Microwave absorption heating element for microwave oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9609890A JPH03295192A (en) | 1990-04-10 | 1990-04-10 | Microwave absorption heating element for microwave oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03295192A true JPH03295192A (en) | 1991-12-26 |
Family
ID=14155918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9609890A Pending JPH03295192A (en) | 1990-04-10 | 1990-04-10 | Microwave absorption heating element for microwave oven |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03295192A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008145191A (en) * | 2006-12-07 | 2008-06-26 | Kobe Steel Ltd | Method for treating radioactive waste |
| JP2012011017A (en) * | 2010-07-01 | 2012-01-19 | Panasonic Corp | Cooking utensil and cooking apparatus using the same |
| JP2013156001A (en) * | 2012-02-01 | 2013-08-15 | Mitsubishi Electric Corp | Cooking utensil for high frequency heating and high frequency heating cooker |
| CN106573724A (en) * | 2014-08-06 | 2017-04-19 | Fp创新研究中心 | Printing a duplex microwave interactive susceptor structure on cellulose-based substrates for sustainable microwave packaging |
-
1990
- 1990-04-10 JP JP9609890A patent/JPH03295192A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008145191A (en) * | 2006-12-07 | 2008-06-26 | Kobe Steel Ltd | Method for treating radioactive waste |
| JP4579893B2 (en) * | 2006-12-07 | 2010-11-10 | 株式会社神戸製鋼所 | Radioactive waste disposal method |
| JP2012011017A (en) * | 2010-07-01 | 2012-01-19 | Panasonic Corp | Cooking utensil and cooking apparatus using the same |
| JP2013156001A (en) * | 2012-02-01 | 2013-08-15 | Mitsubishi Electric Corp | Cooking utensil for high frequency heating and high frequency heating cooker |
| CN106573724A (en) * | 2014-08-06 | 2017-04-19 | Fp创新研究中心 | Printing a duplex microwave interactive susceptor structure on cellulose-based substrates for sustainable microwave packaging |
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