JP2010042212A

JP2010042212A - Induction cooking vessel

Info

Publication number: JP2010042212A
Application number: JP2008210133A
Authority: JP
Inventors: Ki Won Seo; キウォンセオ
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-08-18
Filing date: 2008-08-18
Publication date: 2010-02-25

Abstract

<P>PROBLEM TO BE SOLVED: To provide an induction cooking vessel in which the heat generation elements of a magnetic substance are firmly fixed to a receptacle body of non-magnetic metal. <P>SOLUTION: The induction cooking vessel includes the receptacle body 14 and the heat generation parameter 20 of the magnetic substance which heats the bottom of the body 14. Two or more arc-shaped pressure welding elements 11, which are arranged while maintaining space in a circumference direction on each circumference of each radius which gradually becomes large with the center of the bottom as a reference point, are formed on the bottom of the body 14. Each heat generation elements 20 includes two or more first induction parts 24 radially extended and two or more second induction parts 26 which intersect with each of the first induction parts 24 and are arranged concentrically, and an insertion aperture 22, which is surrounded by space between two adjacent first induction parts and space between two adjacent second induction parts, is formed. The two or more pressure welding elements 11 prepared on the bottom of the body 14 are inserted into the respective insertion apertures 22 of the heat generation element 20 and then the pressure welding elements 11 are plastically deformed by press working and then fixed to the bottom of the body 14. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、誘導コイルである高周波電流伝達コンダクタから変換される電気的エネルギが、磁性体の発熱層を介して伝達されて所望の調理を成す誘導加熱調理容器に関し、特に、非磁性金属の容器本体に、安定して堅固な発熱層の付着構造を有する誘導加熱調理容器に関する。 The present invention relates to an induction heating cooking container in which electrical energy converted from a high-frequency current transmission conductor, which is an induction coil, is transmitted through a heat generation layer of a magnetic material to perform desired cooking, and in particular, a non-magnetic metal container. The present invention relates to an induction heating cooking container having a structure in which a heat generating layer is stably and firmly attached to a main body.

電磁誘導加熱とは、一般的に誘導コイルである高周波電流伝達コンダクタから変換される電気的エネルギによって磁性体の金属部分の温度を上げることをいう。かかる電磁誘導加熱の調理器を用いて飲食物を料理する調理容器は、今まで様々に開発されて使用されている。 Electromagnetic induction heating refers to raising the temperature of the metal portion of the magnetic material by electrical energy converted from a high-frequency current transmission conductor that is generally an induction coil. Various cooking containers for cooking food and drink using such electromagnetic induction heating cookers have been developed and used.

誘導加熱を用いる調理容器は、製品の多様性、製造単価の節減及び軽量化のために、主に非金属であるアルミニウムを主素材として、プレスを用いる圧延や鋳造方式であるダイカストにより製造されている。このとき、非金属の調理容器本体は非磁性体であるため、渦電流を生成する抵抗成分となる磁性体の発熱層を設けることが必ず要求される。 Cooking containers that use induction heating are manufactured by die-casting, which uses rolling or a casting method, mainly using non-metallic aluminum as the main material, in order to reduce product variety, reduce manufacturing costs, and reduce weight. Yes. At this time, since the non-metallic cooking container main body is a non-magnetic material, it is always required to provide a heat-generating layer of a magnetic material serving as a resistance component that generates eddy current.

かかる発熱層は、調理容器本体の大略底面に溶射方式でまたは別途の金属板材がその表面が露出するように付加的に設けられる。従って、電磁誘導加熱調理器の誘導コイルで変換される電気的エネルギである磁力線が通過する時、その発熱層の材質に含まれた抵抗成分（鉄成分）によって渦電流が生成され、調理容器本体の底の発熱層で発生した渦電流は調理容器本体のみを発熱させながら、所望の飲食物の調理を成すようになる。
調理容器の底に付加的に備えられる発熱層の取り付け方式のうち溶射方式は、生産性が低く、製造費用が高くて、近年には製造費用が低くて生産が容易な別途の金属板材を用いた付着方式が主に利用されている。 Such a heat generating layer is additionally provided on the substantially bottom surface of the cooking container main body by a thermal spraying method or an additional metal plate material so that the surface thereof is exposed. Therefore, when the magnetic lines of electric energy converted by the induction coil of the electromagnetic induction heating cooker pass, eddy current is generated by the resistance component (iron component) contained in the material of the heat generating layer, and the cooking vessel body The eddy current generated in the heat generation layer at the bottom of the bottom of the food cooks the desired food and drink while heating only the cooking container body.
Of the heating layer attachment methods that are additionally provided at the bottom of the cooking container, the thermal spraying method is low in productivity and high in manufacturing costs. In recent years, a separate metal plate that is low in manufacturing costs and easy to produce has been used. The adhesion method that was used is mainly used.

ところで、上記のように別途の金属板材を用いて調理容器本体に付着して設けられる発熱層は、大略円盤状の金属板材からなり、調理容器本体の底の全面に設けられている。このような金属板材の発熱層は、調理容器本体の鋳造工程で容器と一体で設けられる。または、調理容器本体の底面に所定深さの収容空間を形成し、その収容空間に不規則的に設けられる数個のピン型結束要素に沿って発熱層を挿入した後、所定の圧着工程を通じて発熱層を結束要素によりリベッティング（ｒｉｖｅｔｉｎｇ）で結束する。 By the way, the exothermic layer provided by attaching to a cooking container main body using a separate metal plate material as mentioned above consists of a substantially disk-shaped metal plate material, and is provided in the whole surface of the bottom of a cooking container main body. Such a heat generating layer of the metal plate material is provided integrally with the container in the casting process of the cooking container body. Alternatively, a storage space having a predetermined depth is formed on the bottom surface of the cooking container main body, and a heat generation layer is inserted along several pin-type binding elements that are irregularly provided in the storage space, and then through a predetermined pressure bonding process. The heat generating layer is bound by riveting with a binding element.

以上の他、関連する技術としては、例えば、以下の特許文献１に開示されている技術がある。 In addition to the above, as a related technique, for example, there is a technique disclosed in Patent Document 1 below.

特願2007-130311号公報Japanese Patent Application No. 2007-130311

しかしながら、このように円盤状形状の金属板材からなる発熱層を上記のようにピン型結束要素を用いて取り付けると、その結合状態が安定できず、使用の際、外部衝撃または持続的な加熱による熱変形によって発熱層が部分的に離脱するなど、製品性が低下する。 However, if the heat generating layer made of a disk-shaped metal plate is attached using the pin-type binding element as described above, the combined state cannot be stabilized, and in use, due to external impact or continuous heating. Productivity deteriorates, for example, the heat generation layer is partially detached due to thermal deformation.

本発明は、上述の問題点に鑑みてなされたもので、その目的は、発熱要素の結合状態が安定して堅固な誘導加熱調理容器を提供することにある。 The present invention has been made in view of the above-described problems, and an object of the present invention is to provide an induction heating cooking vessel in which the heating element is stably coupled and has a solid state.

上記目的を達成すべく、本発明は、飲食物調理のためのパン、即ち、非磁性金属を用いる誘導加熱調理容器を提供する。 In order to achieve the above object, the present invention provides an induction heating cooking container using a non-magnetic metal, that is, a pan for cooking food and drink.

前記調理容器は、底の周囲に所定高さのへりを有し上部が開放された本体及び前記本体の開放された上部を開閉する蓋を有し、前記底の外面に、調理器の誘導コイルである高周波電流伝達コンダクタから変換される電気的エネルギが、付加的に設けられる磁性体の発熱層を介して伝達されて、所望の調理を成す非磁性金属を用いる誘導加熱調理容器であって、
前記本体の底面に、その底面の中心を基点にして等間隔で次第に大きくなる半径の円周において、隣接側と間隔を維持しながら劣弧状に配置される突輪形の圧接要素と、前記圧接要素と対応する位置に挿入孔を有し、前記本体の底面中心から放射状に伸び、前記誘導コイルの巻き線方向に交差する方向に配置される第１誘導部と、前記第１誘導部に交差する方向に配置される第２誘導部とを有する板材形状の発熱要素と、を含み、前記圧接要素と前記挿入孔を一致させて嵌合させた状態で所定のプレス加圧工程を通じて前記圧接要素を押し当てて、前記発熱要素が前記本体の底面に固定される。 The cooking container has a rim having a predetermined height around the bottom, a main body having an open top, and a lid for opening and closing the open top of the main body. An induction heating cooking container using a non-magnetic metal, in which electrical energy converted from the high-frequency current transmission conductor is transmitted through a heat generation layer of a magnetic material additionally provided, and performs desired cooking,
On the bottom surface of the main body, a projecting ring-shaped press contact element arranged in a subarc shape while maintaining a distance from the adjacent side on a circumference of a radius that gradually increases at regular intervals from the center of the bottom surface, and the press contact element And a first induction portion that extends radially from the center of the bottom surface of the main body and intersects the winding direction of the induction coil, and intersects the first induction portion. A plate-shaped heat generating element having a second guide portion arranged in a direction, and the press contact element is passed through a predetermined press pressing process in a state where the press contact element and the insertion hole are matched and fitted. The heat generating element is fixed to the bottom surface of the main body by pressing.

本発明によれば、本体の底に設けた複数の圧接要素を圧着工程を通じて、発熱要素を本体の底に結合させることで、この発熱要素の結合状態が安定して堅固となる上に、製品の信頼性及び作業性が向上する効果がある。 According to the present invention, a plurality of pressure contact elements provided on the bottom of the main body are coupled to the bottom of the main body through a crimping process, so that the coupled state of the heat generating elements becomes stable and firm. This improves the reliability and workability.

さらに、本発明によれば、調理容器本体の底面にその中心から放射状に伸び、誘導コイルの巻き線方向に交差する方向に第１誘導部を備えることで、渦電流を效果的に生成して熱効率を向上させ、不必要な資材の損失を減らし、製造原価を節減できる効果がある。 Furthermore, according to the present invention, the eddy current is effectively generated by providing the first induction portion extending radially from the center of the bottom surface of the cooking vessel body and intersecting the winding direction of the induction coil. This has the effect of improving thermal efficiency, reducing unnecessary material loss, and reducing manufacturing costs.

本発明は、飲食物を調理するためのパン、即ち、誘導加熱調理器の誘導コイルである高周波電流伝達コンダクタから変換される電気的エネルギが付加的に設けられる磁性体の発熱層を介して伝達されて、所望の調理を成す非磁性金属を用いた誘導加熱調理容器を提供する。 The present invention transmits a bread for cooking food and drink, that is, a heat generation layer of a magnetic material additionally provided with electrical energy converted from a high frequency current transmission conductor which is an induction coil of an induction heating cooker. Thus, an induction heating cooking container using a non-magnetic metal that performs desired cooking is provided.

図１及び図２は、本発明に係る非磁性金属を用いた誘導加熱調理容器の一実施形態としてのパン型の調理容器を示す図である。本実施形態の誘導加熱調理容器は、所定の幅と厚さを有する底１０及びこの底１０の周囲に所定高さのへり１２を有し、上部が開放された非磁性金属製の本体１４と、本体１４の開放された上部を覆う蓋１６と、を備えている。 FIG.1 and FIG.2 is a figure which shows the bread | pan type | mold cooking container as one Embodiment of the induction heating cooking container using the nonmagnetic metal which concerns on this invention. The induction heating cooking container of the present embodiment has a bottom 10 having a predetermined width and thickness, a rim 12 having a predetermined height around the bottom 10, and a nonmagnetic metal main body 14 having an open top. And a lid 16 that covers the opened upper portion of the main body 14.

本実施形態では、上記のように構成される非磁性金属を用いる調理容器本体１４の底１０に付加的に設けられる発熱層、即ち調理器の誘導コイルに電流が供給されると、誘導コイルで磁力線が発生し、前記磁力線が調理器の上板上に載置される非磁性金属を用いる調理容器の底を通過する時、渦電流を生成するために設けられる抵抗成分である磁性体の発熱要素２０構造及びその設置構造が改善される。 In this embodiment, when a current is supplied to the heat generation layer additionally provided on the bottom 10 of the cooking vessel body 14 using the nonmagnetic metal configured as described above, that is, the induction coil of the cooking device, the induction coil When magnetic lines are generated and the magnetic lines pass through the bottom of a cooking vessel using a non-magnetic metal placed on the upper plate of the cooker, the heat generated by the magnetic material is a resistance component provided to generate eddy currents. The element 20 structure and its installation structure are improved.

本実施形態の発熱要素２０は、その一例としてステンレスからなり、所定の厚さを有し円板形状を成す金属系の磁性体である。 The heat generating element 20 of this embodiment is made of stainless steel as an example, and is a metal-based magnetic body having a predetermined thickness and a disk shape.

図２及び図３に示すように、本体１４の底１０の外面には、底面を中心を基点として、次第に大きくなる各半径のそれぞれの円周上に、周方向において間隔を維持して配置された複数の弧状の圧接要素１１が設けられている。複数の円周のうち、隣り合う二つの円周の半径差は、隣り合う二つの円周の複数の組のうちのいずれの組でも同じである。 As shown in FIGS. 2 and 3, the outer surface of the bottom 10 of the main body 14 is arranged on the circumference of each of the radii that gradually increase from the bottom surface as a base, with a space maintained in the circumferential direction. A plurality of arc-shaped press contact elements 11 are provided. Among a plurality of circumferences, the radius difference between two adjacent circumferences is the same in any of the plurality of sets of two adjacent circumferences.

複数の圧接要素１１は、本体１４の底１０の外面からの高さが、後述する圧着工程前には、発熱要素２０の厚さよりも高い。また、複数の圧接要素１１は、外周側のものになるにつれて、円周方向の長さが次第に長くなっている。 The plurality of press contact elements 11 have a height from the outer surface of the bottom 10 of the main body 14 higher than the thickness of the heat generating element 20 before the press-bonding process described later. In addition, as the plurality of press contact elements 11 become the outer peripheral side, the length in the circumferential direction is gradually increased.

調理容器本体１４の底１０の周縁には、底１０の外面から一定高さ突出して、発熱要素２０を容器設置面から離隔させる輪形状の保護フレーム１３が備えられている。前記保護フレーム１３は、発熱要素２０が周辺物や外部衝撃により直接影響されないようにする保護構造物である。 At the periphery of the bottom 10 of the cooking container main body 14, a ring-shaped protective frame 13 that protrudes from the outer surface of the bottom 10 by a certain height and separates the heating element 20 from the container installation surface is provided. The protective frame 13 is a protective structure that prevents the heat generating element 20 from being directly affected by peripheral objects or external impacts.

発熱要素２０は、所定の基点を中心として放射状に伸び、誘導コイルの巻き線方向に交差する方向に配置された複数の第１誘導部２４と、複数の第１誘導部２４のそれぞれに交差し、基点に対して同心状に配置された複数の第２誘導部２６とを有している。この発熱要素には、複数の第１誘導部２４のうち隣り合う二つの第１誘導部相互間と、複数の第２誘導部２６のうち隣り合う二つの第２誘導部相互間と、で囲まれた挿入孔２２が形成されている。各挿入孔２２は、本体１４の底１０に設けられた複数の圧接要素１１のそれぞれと対応する位置に、対応する大きさに形成されている。 The heating element 20 extends radially around a predetermined base point and intersects each of the plurality of first induction portions 24 and the plurality of first induction portions 24 arranged in a direction intersecting the winding direction of the induction coil. And a plurality of second guiding portions 26 arranged concentrically with respect to the base point. The heat generating element is surrounded by two adjacent first guide portions of the plurality of first guide portions 24 and between two adjacent second guide portions of the plurality of second guide portions 26. An insertion hole 22 is formed. Each insertion hole 22 is formed in a size corresponding to each of the plurality of press contact elements 11 provided on the bottom 10 of the main body 14.

第１誘導部２４は、調理器の誘導コイルの巻き線方向に交差する方向に設けられ、渦電流を效果的に生成して熱効率を向上させる主発熱部であり、第２誘導部２６は、発熱要素２０の連結機能をし、且つ第１誘導部２４から熱が伝導される副発熱部である。 The first induction unit 24 is provided in a direction crossing the winding direction of the induction coil of the cooker, and is a main heat generating unit that effectively generates eddy currents to improve thermal efficiency. The second induction unit 26 is It is a sub-heating unit that functions to connect the heating elements 20 and that conducts heat from the first induction unit 24.

図４は、本実施形態の非磁性金属の調理容器本体１４の底１０外面に発熱要素２０が取り付けられる過程を示す図であり、同図（a）は、圧接要素１１のプレス加工前を示し、同図（ｂ）は、圧接要素１１のプレス加工後を示している。 FIG. 4 is a view showing a process in which the heating element 20 is attached to the outer surface of the bottom 10 of the nonmagnetic metal cooking vessel body 14 of the present embodiment, and FIG. FIG. 4B shows the press contact element 11 after press working.

まず、同図（a）に示すように、発熱要素２０の複数の挿入孔２２のそれぞれに、本体１４の底１０に設けられた複数の圧接要素１１が嵌め込まれる。次に、同図（ｂ）に示すように、複数の圧接要素１１に対して、本体１４の底１０側を加圧方向とするプレス加工が施される。このプレス加工過程で、圧接要素１１の先端部が潰され、塑性変形して、この先端部の大きさが発熱要素２０の挿入孔２２の大きさよりも大きくなり、この発熱要素２０は、本体１０の底１４外面にしっかりと固定される。 First, as shown in FIG. 2A, the plurality of press contact elements 11 provided on the bottom 10 of the main body 14 are fitted into the plurality of insertion holes 22 of the heat generating element 20, respectively. Next, as shown in FIG. 5B, the plurality of press contact elements 11 are subjected to press working with the bottom 10 side of the main body 14 as the pressing direction. In this pressing process, the tip of the pressure contact element 11 is crushed and plastically deformed, and the size of the tip becomes larger than the size of the insertion hole 22 of the heat generating element 20. It is firmly fixed to the outer surface of the bottom 14.

発熱要素２０は、調理容器本体１４の底１０外面に露出して、誘導コイルの磁力線が通過しながら、発熱要素２０の材質に含まれた抵抗成分によって渦電流が円滑に生成される。 The heating element 20 is exposed to the outer surface of the bottom 10 of the cooking container main body 14, and an eddy current is smoothly generated by the resistance component included in the material of the heating element 20 while the magnetic lines of force of the induction coil pass therethrough.

なお、上述した本発明の好ましい実施の形態は、例示の目的のために開示されたものであり、本発明の属する技術の分野における通常の知識を有する者であれば、本発明の技術的思想を逸脱しない範囲内で、様々な置換、変形、及び変更が可能であり、このような置換、変更などは、特許請求の範囲に属するものである。 The above-described preferred embodiments of the present invention have been disclosed for the purpose of illustration, and those who have ordinary knowledge in the technical field to which the present invention belongs will be considered as technical ideas of the present invention. Various substitutions, modifications, and changes can be made without departing from the scope of the invention, and such substitutions, changes, and the like belong to the scope of the claims.

本実施形態における誘導加熱調理容器の断面図である。It is sectional drawing of the induction heating cooking container in this embodiment. 本実施形態における誘導加熱調理容器の発熱要素が結合する前の様子を示す分解斜視図である。It is a disassembled perspective view which shows a mode before the heat_generation | fever element of the induction heating cooking container in this embodiment couple | bonds. 本実施形態における誘導加熱調理容器の底面図である。It is a bottom view of the induction heating cooking container in this embodiment. 図３のＡ−Ａ線断面図であり、同図（a）は圧接要素のプレス加工前の状態を示し、同図（ｂ）は、圧接要素のプレス加工後の状態を示す。FIG. 4 is a cross-sectional view taken along line AA in FIG. 3, in which FIG. 3A shows a state before pressing the pressure contact element, and FIG. 3B shows a state after pressing the pressure contact element.

符号の説明Explanation of symbols

１０：底、１１：圧接要素、１３：保護フレーム、１４：本体、１６：蓋、２０：発熱要素、２２：挿入孔、２４：第１誘導部、２６：第２誘導部 10: bottom, 11: pressure contact element, 13: protective frame, 14: main body, 16: lid, 20: heating element, 22: insertion hole, 24: first guiding part, 26: second guiding part

Claims

底の周囲に所定高さのへりを有し上部が開放された非磁性金属の本体と、誘導コイルである高周波電流伝達コンダクタから変換される電気的エネルギにより発熱して、該本体の底を加熱する磁性体の発熱要素と、を備えている誘導加熱調理容器であって、
前記本体の底には、底面の中心を基点にして、次第に大きくなる各半径のそれぞれの円周上に、周方向において間隔を維持して配置された複数の弧状の圧接要素が設けられ、
前記発熱要素は、基点を中心として放射状に伸び、前記誘導コイルの巻き線方向に交差する方向に配置された複数の第１誘導部と、該複数の第１誘導部のそれぞれに交差し、該基点に対して同心状に配置された複数の第２誘導部とを有し、該複数の第１誘導部のうち隣り合う二つの第１誘導部相互間と該複数の第２誘導部のうち隣り合う二つの第２誘導部相互間で囲まれた挿入孔が形成され、各挿入孔は、前記本体の底に設けられた複数の圧接要素のそれぞれと対応する位置に、対応する大きさであり、
前記発熱要素は、該発熱要素の複数の前記挿入孔のそれぞれに、前記本体の底に設けられた複数の前記圧接要素に嵌め込まれ、複数の該圧接要素が前記本体の底側へ加圧されて、塑性変形し、前記本体の底に固定されていることを特徴とする誘導加熱調理容器。 A non-magnetic metal body having a rim of a predetermined height around the bottom and an open top, and heat generated by electrical energy converted from a high-frequency current transmission conductor, which is an induction coil, heats the bottom of the body. An induction heating cooking vessel provided with a heat generating element of magnetic material,
On the bottom of the main body, a plurality of arc-shaped pressure contact elements arranged at intervals in the circumferential direction are provided on the circumferences of the respective radii that gradually increase from the center of the bottom surface,
The heating element extends radially around a base point and intersects each of the plurality of first induction portions arranged in a direction intersecting the winding direction of the induction coil, and the plurality of first induction portions, A plurality of second guiding portions arranged concentrically with respect to the base point, and between two adjacent first guiding portions and among the plurality of second guiding portions among the plurality of first guiding portions. An insertion hole surrounded by two adjacent second guide portions is formed, and each insertion hole has a size corresponding to each of a plurality of pressure contact elements provided on the bottom of the main body. Yes,
The heat generating element is fitted into each of the plurality of insertion holes of the heat generating element into the plurality of pressure contact elements provided on the bottom of the main body, and the plurality of pressure contact elements are pressurized to the bottom side of the main body. An induction heating cooking vessel characterized by being plastically deformed and fixed to the bottom of the main body.

前記本体の底には、該本体の底に固定された前記発熱要素の外周に位置し、該発熱要素の厚さよりも、底面からの突出量が大きい保護フレームが設けられていることを特徴とする請求項１に記載の誘導加熱調理容器。 The bottom of the main body is provided with a protective frame that is located on the outer periphery of the heat generating element fixed to the bottom of the main body and has a larger protruding amount from the bottom surface than the thickness of the heat generating element. The induction heating cooking container of Claim 1.