以下、本発明に係る誘導加熱調理器の実施の形態を、図面に基づいて説明する。なお、以下に示す図面の形態によって本発明が限定されるものではない。また、以下の説明において、理解を容易にするために方向を表す用語（例えば「上」、「下」、「右」、「左」、「前」、「後」など）を適宜用いるが、これは説明のためのものであって、これらの用語は本願発明を限定するものではない。これらの方向を示す用語は、特に明示しない限り、誘導加熱調理器を前面側（正面側）から見た場合の方向を意味している。また、各図において、同一の符号を付したものは、同一の又はこれに相当するものであり、これは明細書の全文において共通している。
Hereinafter, an embodiment of an induction heating cooker according to the present invention will be described based on the drawings. In addition, this invention is not limited by the form of drawing shown below. Further, in the following description, terms for indicating directions (for example, “up”, “down”, “right”, “left”, “front”, “back”, etc.) are used as appropriate for easy understanding. This is for explanation and these terms do not limit the present invention. Unless otherwise specified, terms indicating these directions mean directions when the induction heating cooker is viewed from the front side (front side). Moreover, in each figure, what attached | subjected the same code | symbol is the same or it corresponds, and this is common in the whole text of a specification.
実施の形態１．
図１は、実施の形態１に係る誘導加熱調理器の本体筐体１がキッチンキャビネット２００に据え付けられた状態を示す斜視図である。
実施の形態１の誘導加熱調理器は、本体筐体１がキッチンキャビネット２００に組み込まれて使用されるビルトイン型のものである。本体筐体１は、下筐体２と、下筐体２の上部に組み付けられる上筐体３とを備え、下筐体２と上筐体３とが組み合わされて形成される本体筐体１の内部空間に、後述する各部品が収容される。上筐体３の上面の開口には、被加熱物が載置されるトッププレート７が嵌め込まれている。図１に示すように本体筐体１がキッチンキャビネット２００に組み込まれると、キッチンキャビネット２００の天面を構成するキッチン天板２０１の上に、上筐体３が載置され、キッチンキャビネット２００の内部に、下筐体２が収容される。本体筐体１内には、グリル加熱を行う調理室３７が形成されており、キッチンキャビネット２００の前面に形成された前面開口部２０４からは、下筐体２の前面に設けられた調理室３７の扉及び操作部５が露出している。
Embodiment 1 FIG.
FIG. 1 is a perspective view showing a state in which main body casing 1 of the induction heating cooker according to Embodiment 1 is installed in kitchen cabinet 200.
The induction heating cooker of Embodiment 1 is a built-in type in which the main body housing 1 is used by being incorporated in the kitchen cabinet 200. The main body case 1 includes a lower case 2 and an upper case 3 that is assembled to the upper portion of the lower case 2. The main case 1 is formed by combining the lower case 2 and the upper case 3. Each component to be described later is accommodated in the internal space. A top plate 7 on which an object to be heated is placed is fitted in the opening on the upper surface of the upper housing 3. As shown in FIG. 1, when the main body housing 1 is incorporated into the kitchen cabinet 200, the upper housing 3 is placed on the kitchen top plate 201 constituting the top surface of the kitchen cabinet 200, and the interior of the kitchen cabinet 200 is In addition, the lower housing 2 is accommodated. A cooking chamber 37 for heating the grill is formed in the main body housing 1, and the cooking chamber 37 provided on the front surface of the lower housing 2 is formed from the front opening 204 formed on the front surface of the kitchen cabinet 200. The door and the operation unit 5 are exposed.
上筐体３の上面の開口に設けられたトッププレート７は、例えば耐熱性ガラスやセラミック等の非金属材料で構成される。トッププレート７には、被加熱物（図示せず）が載置される３つの加熱口６ａ、加熱口６ｂ、加熱口６ｃが、本体筐体１の幅方向に沿って左から順に配置されている。なお以降の説明において、加熱口６ａ、加熱口６ｂ、加熱口６ｃに共通する事項を説明する場合には、加熱口６と総称する場合がある。トッププレート７の表面又は裏面には、各加熱口６に被加熱物を載置する際の目印となる表示が施されている。
The top plate 7 provided in the opening on the upper surface of the upper housing 3 is made of a nonmetallic material such as heat resistant glass or ceramic. On the top plate 7, three heating ports 6 a, a heating port 6 b, and a heating port 6 c on which an object to be heated (not shown) is placed are arranged in order from the left along the width direction of the main body housing 1. Yes. In the following description, when the matters common to the heating port 6a, the heating port 6b, and the heating port 6c are described, they may be collectively referred to as the heating port 6. On the front surface or the back surface of the top plate 7, a display serving as a mark when placing an object to be heated on each heating port 6 is provided.
左右の中間に配置された加熱口６ｂの前端は、左右に配置された加熱口６ａ及び加熱口６ｃの前端よりも後寄りに配置されている。また、加熱口６ａ及び加熱口６ｃは、それぞれトッププレート７の左右の端部に近づけて配置されている。このため、中間の加熱口６ｂの手前から左右の加熱口６ａと加熱口６ｃの手前までの領域は、例えば盛り付け等の加熱調理以外の調理作業を使用者が行うのに十分なスペースが確保され、調理の作業性を高める効果がある。
The front end of the heating port 6b arranged in the middle of the left and right is arranged behind the front ends of the heating port 6a and the heating port 6c arranged on the left and right. The heating port 6a and the heating port 6c are arranged close to the left and right ends of the top plate 7, respectively. For this reason, in the area from the front of the intermediate heating port 6b to the front of the left and right heating ports 6a and 6c, a sufficient space is secured for the user to perform cooking operations other than cooking such as serving. It has the effect of improving the workability of cooking.
各加熱口６の手前には、それぞれ表示部４が設けられている。表示部４には、各加熱口６の火力状態、安全に調理作業を行うための情報、自動調理等の操作メニューの内容、及び調理の進行状況等が表示される。表示部４は、例えば液晶画面やＬＥＤなど、視覚的に情報を報知するための任意の装置で構成される。
A display unit 4 is provided in front of each heating port 6. The display unit 4 displays the heating power state of each heating port 6, information for safely performing cooking operations, the contents of operation menus such as automatic cooking, the progress of cooking, and the like. The display unit 4 is configured by an arbitrary device for visually informing information, such as a liquid crystal screen or an LED.
下筐体２の前面及び表示部４の手前には、操作部５が設けられている。操作部５は、各加熱口６及び調理室３７での加熱調理に関する操作入力を受け付ける入力装置である。使用者は、操作部５を用いて、火力の調整、調理メニューの選択及び指示の操作を行うことができる。
An operation unit 5 is provided on the front surface of the lower housing 2 and in front of the display unit 4. The operation unit 5 is an input device that receives operation inputs related to heating cooking in each heating port 6 and the cooking chamber 37. The user can use the operation unit 5 to adjust the heating power, select a cooking menu, and perform instructions.
トッププレート７の背面側には、通気口カバー８が設けられている。通気口カバー８には、通風可能な開口が形成されており、吸気及び排気の気流がスムースに通過することができる。通気口カバー８を設けることで、通気口カバー８の下方に設けられた筐体吸気口９及び筐体排気口１０（図３参照）への異物の侵入を抑制している。
A vent hole cover 8 is provided on the back side of the top plate 7. The ventilation hole cover 8 is formed with an opening through which air can flow, and airflow of intake and exhaust can pass smoothly. By providing the vent cover 8, entry of foreign matter into the casing intake port 9 and the casing exhaust port 10 (see FIG. 3) provided below the vent cover 8 is suppressed.
下筐体２の前面の左側には、調理室３７の前面開口を開閉する引き出し式の扉が配置されている。調理室３７内で加熱調理される食材等の出し入れは、この調理室３７の扉が開閉されて行われる。
なお、調理室３７、操作部５及び表示部４の配置並びに数は一例であり、図示のものに限定されない。
A drawer-type door that opens and closes the front opening of the cooking chamber 37 is disposed on the left side of the front surface of the lower housing 2. Ingredients and the like to be cooked in the cooking chamber 37 are put in and out with the door of the cooking chamber 37 opened and closed.
In addition, arrangement | positioning and the number of the cooking chamber 37, the operation part 5, and the display part 4 are examples, and are not limited to the thing of illustration.
図２は、キッチンキャビネット２００の一例を示す斜視図である。図２を参照して、本実施の形態の誘導加熱調理器が組み込まれうるキッチンキャビネット２００の一例を説明する。
キッチンキャビネット２００には、誘導加熱調理器の下筐体２が格納される空間である格納部２０２が形成されている。キッチン天板２０１には、格納部２０２に通じる開口が形成されており、この開口部を天板開口部２０３という。また、キッチンキャビネット２００の前面には、格納部２０２に通じる開口が形成されており、この開口部を前面開口部２０４という。天板開口部２０３から前面開口部２０４に至る空間である格納部２０２内に、本体筐体１の下筐体２が収容され、キッチン天板２０１の上に、本体筐体１の上筐体３が載置される。
FIG. 2 is a perspective view showing an example of the kitchen cabinet 200. With reference to FIG. 2, an example of the kitchen cabinet 200 in which the induction heating cooking appliance of this Embodiment can be integrated is demonstrated.
The kitchen cabinet 200 is formed with a storage portion 202 that is a space in which the lower casing 2 of the induction heating cooker is stored. The kitchen top plate 201 is formed with an opening leading to the storage unit 202, and this opening is referred to as a top plate opening 203. In addition, an opening leading to the storage unit 202 is formed on the front surface of the kitchen cabinet 200, and this opening is referred to as a front opening 204. The lower casing 2 of the main body casing 1 is accommodated in the storage section 202 which is a space from the top opening 203 to the front opening 204, and the upper casing of the main casing 1 is placed on the kitchen top 201. 3 is placed.
格納部２０２の下方には、調理用具等の収納スペースを有する引き出しが設けられている。なお、このような収納スペースの代わりにオーブンレンジ等の加熱調理器の収納スペースを設けたキッチンキャビネット２００もあり、格納部２０２の下方の用途は限定されない。
A drawer having a storage space for cooking utensils or the like is provided below the storage unit 202. There is also a kitchen cabinet 200 provided with a storage space for a heating cooker such as a microwave oven instead of such a storage space, and the use below the storage unit 202 is not limited.
図３は、実施の形態１に係る誘導加熱調理器の本体筐体１から通気口カバー８を外し、トッププレート７を透視した斜視図である。図４は、実施の形態１に係る本体筐体１の上筐体３と下筐体２の分解斜視図である。
本体筐体１は、上面を開口した概ね箱状の下筐体２と、下筐体２の上に設けられた下筐体２よりも幅広の上筐体３とを有する。上から見たときの上筐体３の外周の投影面積は、下筐体２の外周の投影面積よりも大きく、上筐体３は、左右方向において下筐体２よりも外側に張り出している。
FIG. 3 is a perspective view of the top plate 7 seen through with the vent cover 8 removed from the main body housing 1 of the induction heating cooker according to the first embodiment. 4 is an exploded perspective view of the upper casing 3 and the lower casing 2 of the main casing 1 according to the first embodiment.
The main housing 1 has a generally box-shaped lower housing 2 having an upper surface opened, and an upper housing 3 wider than the lower housing 2 provided on the lower housing 2. The projected area of the outer periphery of the upper housing 3 when viewed from above is larger than the projected area of the outer periphery of the lower housing 2, and the upper housing 3 projects outward from the lower housing 2 in the left-right direction. .
上筐体３は、全体としてみると上面及び底面の中央部分を開口した箱状の部材であり、概ね角枠状の上筐体枠５０と、上筐体枠５０の左側に設けられた上筐体支持面部材６０と、上筐体枠５０の右側に設けられた上筐体支持面部材７０とを備える。上筐体枠５０が、上筐体３の周壁に相当する部分を構成し、上筐体支持面部材６０及び上筐体支持面部材７０が、上筐体３の支持面に相当する部分を構成している。上筐体支持面部材６０は、上筐体３の上筐体枠５０の左端に寄せて配置され、上筐体枠５０の対向する前後の二辺間に掛け渡されている。上筐体支持面部材７０は、上筐体３の上筐体枠５０の右端に寄せて配置され、上筐体枠５０の対向する前後の二辺間に掛け渡されている。図３に示すように上筐体３が下筐体２に組み合わされた状態では、上筐体支持面部材６０は下筐体２の左端から左外方向に向かって概ね水平に張り出し、また、上筐体支持面部材７０は、下筐体２の右端から右外方向に向かって概ね水平に張り出している。上筐体支持面部材６０及び上筐体支持面部材７０は、上筐体枠５０及びトッププレート７と隙間少なく概ね気密に取り付けられ、後述する冷却風の出入り口となる開口部を除いては、一定の気密性を有する空間を自身の上方に形成している。
The upper housing 3 is a box-like member having an opening at the center of the top surface and the bottom surface as a whole. The upper housing 3 is an upper housing frame 50 having a generally rectangular frame shape and an upper housing frame 50 provided on the left side of the upper housing frame 50. A housing support surface member 60 and an upper housing support surface member 70 provided on the right side of the upper housing frame 50 are provided. The upper housing frame 50 constitutes a portion corresponding to the peripheral wall of the upper housing 3, and the upper housing support surface member 60 and the upper housing support surface member 70 constitute portions corresponding to the support surface of the upper housing 3. It is composed. The upper housing support surface member 60 is disposed close to the left end of the upper housing frame 50 of the upper housing 3 and is spanned between two front and rear sides of the upper housing frame 50 facing each other. The upper housing support surface member 70 is disposed close to the right end of the upper housing frame 50 of the upper housing 3 and is spanned between two front and rear sides of the upper housing frame 50 facing each other. In the state where the upper housing 3 is combined with the lower housing 2 as shown in FIG. 3, the upper housing supporting surface member 60 projects substantially horizontally from the left end of the lower housing 2 toward the left outer direction, The upper housing support surface member 70 projects substantially horizontally from the right end of the lower housing 2 toward the right outer direction. The upper housing support surface member 60 and the upper housing support surface member 70 are attached to the upper housing frame 50 and the top plate 7 in a generally airtight manner with a small gap, except for an opening serving as a cooling air inlet / outlet described later. A space having a certain airtightness is formed above itself.
上筐体３の上筐体枠５０の上面後部には、右側に筐体吸気口９が形成され、左側に筐体排気口１０が形成されている。なお、本実施の形態においては、筐体吸気口９は上筐体３の上面後部の右側に設けられているが、上筐体３及び下筐体２の外部から冷却に用いる空気を吸引できる位置であれば、筐体吸気口９は上筐体３と下筐体２のいずれに設けられていてもよい。例えば、下筐体２の背面、底面、及び操作部５が設けられる前面のいずれかに筐体吸気口９を設けてもよく、筐体吸気口９の配置及び数によらず本実施の形態の作用効果を得ることができる。
In the upper rear portion of the upper casing frame 50 of the upper casing 3, a casing intake port 9 is formed on the right side, and a casing exhaust port 10 is formed on the left side. In the present embodiment, the housing inlet 9 is provided on the right side of the upper rear portion of the upper housing 3, but air used for cooling can be sucked from the outside of the upper housing 3 and the lower housing 2. If it is a position, the housing inlet 9 may be provided in either the upper housing 3 or the lower housing 2. For example, the housing intake port 9 may be provided on any of the back surface, the bottom surface, and the front surface on which the operation unit 5 is provided of the lower housing 2. The effect of this can be obtained.
左側の加熱口６ａ（図１参照）の下方には、中心が異なる位置に配置された５つの誘導加熱コイル１１ａ、１１ｂ、１１ｃ、１１ｄ、１１ｅ（これらを誘導加熱コイル１１と総称する場合がある）が設けられている。巻線３１を二重環状に巻き回して構成された誘導加熱コイル１１ｅの周囲に、巻線３１を扁平な楕円形状に巻き回して構成された誘導加熱コイル１１ａ〜１１ｄが配置されており、これらで一つの加熱口６ａの加熱手段を構成する。なお、誘導加熱コイル１１及びこれ以降で説明する誘導加熱コイル１２、１３の説明において、コイルを構成する巻線に着目して説明するときは、「巻線３１」と表現するが、図示の関係上、各図では巻線３１が示されていない場合もある。
Below the left heating port 6a (see FIG. 1), there are five induction heating coils 11a, 11b, 11c, 11d, and 11e arranged at different centers (these may be collectively referred to as induction heating coil 11). ) Is provided. Around the induction heating coil 11e configured by winding the winding 31 in a double ring shape, induction heating coils 11a to 11d configured by winding the winding 31 in a flat elliptical shape are arranged. Constitutes a heating means for one heating port 6a. In the description of the induction heating coil 11 and the induction heating coils 12 and 13 that will be described later, when the description is given focusing on the windings constituting the coils, it is expressed as “winding 31”, but the relationship shown in the figure Above, the winding 31 may not be shown in each figure.
５つの誘導加熱コイル１１はそれぞれ独立して駆動され、被加熱物である調理容器の大きさ及び配置に応じて、５つの誘導加熱コイル１１のうち１つから５つが、適宜組み合わせて駆動されて加熱調理が行われる。したがって、小型の鍋、大型のフライパン、縦型の卵焼き用フライパン、横型のオーバル鍋など、調理容器の大きさ、形状及び配置が異なる場合でも、それぞれ調理容器の適切な範囲が加熱される。被加熱物が載置されない範囲の誘導加熱コイル１１では加熱を行わないので、無駄な電力消費を抑制して環境負荷を低減することができる。誘導加熱コイル１１の上に載置される被加熱物の範囲全体を加熱することができるので、より均一な加熱が行え、良好な調理効果及び仕上がりを得る効果がある。
The five induction heating coils 11 are independently driven, and one to five of the five induction heating coils 11 are appropriately combined and driven according to the size and arrangement of the cooking container that is the object to be heated. Cooking is performed. Therefore, even when the size, shape, and arrangement of the cooking container are different, such as a small pan, a large frying pan, a vertical fried egg frying pan, and a horizontal oval pan, the appropriate range of the cooking container is heated. Since the induction heating coil 11 in the range where the object to be heated is not placed is not heated, wasteful power consumption can be suppressed and the environmental load can be reduced. Since the entire range of the object to be heated placed on the induction heating coil 11 can be heated, more uniform heating can be performed and there is an effect of obtaining a good cooking effect and finish.
誘導加熱コイル１１は、例えば合成樹脂等で構成されたコイルベースに支持されており、誘導加熱コイル１１の一部は上筐体支持面部材６０の上に配設され、残りの一部は下筐体２の上に配設されている。
より詳しくは、本実施の形態では、左端に配置された誘導加熱コイル１１ａと、他の４つの誘導加熱コイル１１ｂ、１１ｃ、１１ｄ、１１ｅとは、別のコイルベースに支持されており、前者のコイルベースをコイルベース１４、後者のコイルベースをコイルベース１５と称する。左端の誘導加熱コイル１１ａは、コイルベース１４に支持されて上筐体支持面部材６０のコイル載置面６１の上に配置され、他の４つの誘導加熱コイル１１ｂ、１１ｃ、１１ｄ、１１ｅは、コイルベース１５に支持されて下筐体２に配置されている。
The induction heating coil 11 is supported by a coil base made of, for example, a synthetic resin, and a part of the induction heating coil 11 is disposed on the upper housing support surface member 60, and the remaining part is the lower part. It is disposed on the housing 2.
More specifically, in the present embodiment, the induction heating coil 11a arranged at the left end and the other four induction heating coils 11b, 11c, 11d, and 11e are supported by different coil bases, and the former The coil base is called a coil base 14, and the latter coil base is called a coil base 15. The induction heating coil 11a at the left end is supported on the coil base 14 and disposed on the coil placement surface 61 of the upper housing support surface member 60. The other four induction heating coils 11b, 11c, 11d, and 11e are It is supported by the coil base 15 and disposed in the lower housing 2.
下筐体２に配置される４つの誘導加熱コイル１１ｂ、１１ｃ、１１ｄ、１１ｅの、上筐体支持面部材６０に隣接しない側の側面（本実施の形態では右側の側面）の外周を囲うようにして、アルミ板等の非磁性金属板で形成された防磁板２１が配置されている。防磁板２１は、誘導加熱コイル１１ｂ、１１ｃ、１１ｄ、１１ｅの外形に沿うようにして、上から見て円弧状に形成されている。このような防磁板２１を設けることで、誘導加熱コイル１１ｂ、１１ｃ、１１ｄ、１１ｅの側面方向への高周波磁束を防磁板２１が吸収し、磁束の漏洩を抑制することができる。
The four induction heating coils 11b, 11c, 11d, and 11e arranged in the lower housing 2 surround the outer periphery of the side surface that is not adjacent to the upper housing support surface member 60 (right side surface in the present embodiment). Thus, a magnetic shielding plate 21 formed of a nonmagnetic metal plate such as an aluminum plate is disposed. The magnetic shield 21 is formed in an arc shape when viewed from above so as to follow the outer shape of the induction heating coils 11b, 11c, 11d, and 11e. By providing such a magnetic shield plate 21, the magnetic shield plate 21 absorbs high-frequency magnetic flux in the side surface direction of the induction heating coils 11b, 11c, 11d, and 11e, and leakage of magnetic flux can be suppressed.
また、上筐体支持面部材６０は、アルミ板等の非磁性金属板で形成されており、上筐体支持面部材６０の外側の側壁６２が防磁板として機能し、上筐体３の左側側方への漏れ磁束を抑制している。このため、左端の誘導加熱コイル１１ａには、誘導加熱コイル１１ｂ、１１ｃ、１１ｄ、１１ｅの周囲に設けられた防磁板２１に相当する構成を別途配置する必要がなく、部品コスト及び組立コストを安価にする効果がある。
The upper housing support surface member 60 is formed of a nonmagnetic metal plate such as an aluminum plate, and the outer side wall 62 of the upper housing support surface member 60 functions as a magnetic shield, and the left side of the upper housing 3. The leakage magnetic flux to the side is suppressed. For this reason, the induction heating coil 11a at the left end does not need to be separately provided with a configuration corresponding to the magnetic shield plate 21 provided around the induction heating coils 11b, 11c, 11d, and 11e, so that the component cost and the assembly cost are low. Has the effect of
左端の誘導加熱コイル１１ａの最大火力は、中央の誘導加熱コイル１１ｅよりも低く抑えられている。上筐体支持面部材６０の上に載置される誘導加熱コイル１１ａの自己発熱を軽減することで、誘導加熱コイル１１ａの冷却の負荷を低減している。
The maximum heating power of the induction heating coil 11a at the left end is suppressed to be lower than that of the central induction heating coil 11e. By reducing the self-heating of the induction heating coil 11a placed on the upper housing support surface member 60, the cooling load of the induction heating coil 11a is reduced.
また、左端の誘導加熱コイル１１ａの巻線３１には、温度検知手段（図示せず）が取り付けられており、制御手段は巻線３１の温度が閾値以上となった場合、左端の誘導加熱コイル１１ａの火力を低下させる、又は加熱を停止させる制御を行う。
このとき、左端の誘導加熱コイル１１ａの火力は低下するが、制御手段は、他の４つの誘導加熱コイル１１ｂ、１１ｃ、１１ｄ、１１ｅのうちいずれか一つ以上の火力を高め、左側の加熱口６ａの合計の火力が維持されるように制御する。このとき、火力を高める誘導加熱コイル１１ｂ〜１１ｅの数は、一つであってもよいし、複数であってもよく、また、いずれの誘導加熱コイル１１ｂ〜１１ｅの火力を高めるかは、そのときの調理メニューや設定火力に応じて制御手段が選択することができる。
Further, a temperature detection means (not shown) is attached to the winding 31 of the leftmost induction heating coil 11a, and the control means, when the temperature of the winding 31 becomes equal to or higher than a threshold value, the leftmost induction heating coil. Control which reduces the thermal power of 11a or stops heating is performed.
At this time, although the heating power of the induction heating coil 11a at the left end is reduced, the control means increases the heating power of any one of the other four induction heating coils 11b, 11c, 11d, and 11e, and Control is performed so that the total heating power of 6a is maintained. At this time, the number of induction heating coils 11b to 11e for increasing the thermal power may be one or plural, and which of the induction heating coils 11b to 11e is to be increased The control means can be selected according to the cooking menu at the time and the set heating power.
中間の加熱口６ｂ（図１参照）の下方には、巻線３１が円板状に巻かれて構成された一つの誘導加熱コイル１２が配置されている。加熱口６ｂに載置される被加熱物は、この一つの誘導加熱コイル１２で加熱される。誘導加熱コイル１２の側面外周には、誘導加熱コイル１２を囲む防磁板２２が配置されており、防磁板が誘導加熱コイル１２の側面方向への高周波磁束を吸収して、磁束の漏洩を抑制している。
Below the intermediate heating port 6b (see FIG. 1), one induction heating coil 12 configured by winding a winding 31 in a disk shape is disposed. The object to be heated placed on the heating port 6 b is heated by this one induction heating coil 12. A magnetic shielding plate 22 surrounding the induction heating coil 12 is disposed on the outer periphery of the side surface of the induction heating coil 12. The magnetic shielding plate absorbs high-frequency magnetic flux in the direction of the side surface of the induction heating coil 12 and suppresses leakage of magnetic flux. ing.
中間の誘導加熱コイル１２は、合成樹脂等で構成されたコイルベース１６に収容されている。コイルベース１６の下面には、コイルバネ等からなる弾性体２９が取り付けられており、コイルベース１６の上面には、誘導加熱コイル１２の上面よりも上に突出する間隔保持部材３０が取り付けられている。弾性体２９の弾性力によってコイルベース１６が上方に付勢され、トッププレート７の下面に間隔保持部材３０が押し当てられ、これによって誘導加熱コイル１２は上下方向に位置決めされる。
The intermediate induction heating coil 12 is accommodated in a coil base 16 made of synthetic resin or the like. An elastic body 29 made of a coil spring or the like is attached to the lower surface of the coil base 16, and a spacing member 30 that protrudes above the upper surface of the induction heating coil 12 is attached to the upper surface of the coil base 16. . The coil base 16 is urged upward by the elastic force of the elastic body 29, and the spacing member 30 is pressed against the lower surface of the top plate 7, whereby the induction heating coil 12 is positioned in the vertical direction.
なお、図３では図示しないが、左側の加熱口６ａに設けられた誘導加熱コイル１１のうち左端の誘導加熱コイル１１ａを除く４つの誘導加熱コイル１１ｂ、１１ｃ、１１ｄ、１１ｅも、中間の誘導加熱コイル１２と同様に、コイルベース１５を介して弾性体２９により支持されるとともに上方に付勢され、トッププレート７の下面に間隔保持部材３０が押し当てられる。このような構成により、誘導加熱コイル１１ｂ、１１ｃ、１１ｄ、１１ｅも上下方向に位置決めされている。
Although not shown in FIG. 3, four induction heating coils 11 b, 11 c, 11 d, and 11 e other than the leftmost induction heating coil 11 a among the induction heating coils 11 provided in the left heating port 6 a are also intermediate induction heating. Similarly to the coil 12, the gap holding member 30 is pressed against the lower surface of the top plate 7 while being supported by the elastic body 29 via the coil base 15 and biased upward. With such a configuration, the induction heating coils 11b, 11c, 11d, and 11e are also positioned in the vertical direction.
右側の加熱口６ｃ（図１参照）の下方には、巻線３１が二重環状に巻かれて構成された一つの誘導加熱コイル１３が配置されている。この誘導加熱コイル１３は、コイルベース１７に収容されている。加熱口６ｃに載置される被加熱物は、この一つの誘導加熱コイル１３で加熱される。誘導加熱コイル１３は、上筐体支持面部材７０の上に載置されている。誘導加熱コイル１３の一部（右側部分）は、本体筐体１がキッチンキャビネット２００に組み付けられた状態においてキッチン天板２０１と重なる位置に配置され、誘導加熱コイル１３の残りの一部（左側部分）は、天板開口部２０３と重なる位置に配置される。
Below the right heating port 6c (see FIG. 1), there is disposed one induction heating coil 13 formed by winding a winding 31 in a double ring shape. The induction heating coil 13 is accommodated in the coil base 17. The object to be heated placed on the heating port 6 c is heated by this one induction heating coil 13. The induction heating coil 13 is placed on the upper housing support surface member 70. A part (right side part) of the induction heating coil 13 is arranged at a position overlapping the kitchen top plate 201 in a state where the main body housing 1 is assembled to the kitchen cabinet 200, and the remaining part (left side part) of the induction heating coil 13. ) Is arranged at a position overlapping the top plate opening 203.
上筐体支持面部材７０は、アルミ板等の非磁性金属板で形成されており、上筐体支持面部材７０の外側の側壁７２が防磁板として機能し、上筐体３の右側側方への漏れ磁束を抑制している。このように上筐体支持面部材７０が防磁板として機能することで、防磁板２１、２２に相当する構成を別途配置する必要がなく、部品コスト及び組立コストを安価にする効果がある。
The upper housing support surface member 70 is formed of a nonmagnetic metal plate such as an aluminum plate, and the outer side wall 72 of the upper housing support surface member 70 functions as a magnetic shield, and the right side of the upper housing 3 The magnetic flux leakage to the is suppressed. Thus, since the upper housing support surface member 70 functions as a magnetic shielding plate, it is not necessary to separately arrange a configuration corresponding to the magnetic shielding plates 21 and 22, and there is an effect of reducing the component cost and the assembly cost.
右側の誘導加熱コイル１３の巻線３１のうち、上面視でキッチン天板２０１と重なる部分、すなわち、下筐体２よりも右側方へはみ出して配置された部分には、巻線３１の温度を検知する温度検知手段（図示せず）が配置されている。制御手段は、誘導加熱コイル１３の巻線３１のうち、上面視でキッチン天板２０１と重なる部分の温度が閾値以上となった場合、右側の誘導加熱コイル１３の火力を低下させる、又は加熱を停止する制御を行う。
Of the winding 31 of the induction heating coil 13 on the right side, the temperature of the winding 31 is applied to the portion that overlaps the kitchen top plate 201 in a top view, that is, the portion that protrudes to the right side of the lower housing 2. A temperature detecting means (not shown) for detecting is arranged. When the temperature of the portion of the winding 31 of the induction heating coil 13 that overlaps the kitchen top plate 201 in the top view is equal to or higher than the threshold value, the control means reduces the heating power of the induction heating coil 13 on the right side or Control to stop.
誘導加熱コイル１１、１２、１３の手前側には、左側の誘導加熱コイル１１と右側の誘導加熱コイル１３の手前側とを結ぶようにして、上筐体３の幅方向に延びる冷却風路８０が配置されている。冷却風路８０の左右の両端は開口しており、左側の開口を左吹出口８２、右側の開口を右吹出口８３と称する。また、冷却風路８０の一部は、左側の誘導加熱コイル１１の下側にも配置されている。
On the front side of the induction heating coils 11, 12, and 13, a cooling air passage 80 extending in the width direction of the upper housing 3 so as to connect the left induction heating coil 11 and the front side of the right induction heating coil 13. Is arranged. Both left and right ends of the cooling air passage 80 are open, and the left opening is referred to as a left outlet 82 and the right opening is referred to as a right outlet 83. A part of the cooling air passage 80 is also arranged below the induction heating coil 11 on the left side.
左側の上筐体支持面部材６０には、複数の通風口が設けられており、その通風口の一つが、誘導加熱コイル１１ａの手前側に設けられた流入口６３、他の通風口の一つが、流入口６３の後方に設けられた流出口６４である。上筐体支持面部材６０への冷却風の流入口である流入口６３には、冷却風路８０の左吹出口８２が概ね気密に接続される。流入口６３から上筐体支持面部材６０の上方に流入した冷却風は、誘導加熱コイル１１ａを冷却し、流出口６４に向かう。上筐体支持面部材６０の左側の側壁６２（外側の側壁）は、誘導加熱コイル１１ａの左側端部において誘導加熱コイル１１ａと最も近接しており、冷却風は上筐体支持面部材６０の左側の側壁６２に沿って流れ、迂回することなく誘導加熱コイル１１ａに接触しつつこれを冷却する。
The left upper housing support surface member 60 is provided with a plurality of ventilation holes, one of which is an inlet 63 provided on the front side of the induction heating coil 11a and one of the other ventilation holes. One is an outlet 64 provided behind the inlet 63. A left outlet 82 of the cooling air passage 80 is connected to the inlet 63, which is an inlet of the cooling air to the upper housing support surface member 60, in a substantially airtight manner. The cooling air that has flowed into the upper housing support surface member 60 from the inlet 63 cools the induction heating coil 11 a and travels toward the outlet 64. The left side wall 62 (outer side wall) of the upper housing support surface member 60 is closest to the induction heating coil 11a at the left end portion of the induction heating coil 11a, and the cooling air flows from the upper housing support surface member 60. It flows along the left side wall 62 and cools it while contacting the induction heating coil 11a without detouring.
右側の上筐体支持面部材７０には、誘導加熱コイル１３の手前側に流入口７３、その後方に流出口７４が設けられている。冷却風路８０の右吹出口８３は、上筐体支持面部材７０への冷却風の流入口である流入口７３に概ね気密に接続されており、流入口７３から上筐体支持面部材７０内に流入した冷却風は、誘導加熱コイル１３を冷却し、流出口７４に向かう。上筐体支持面部材７０の右側の側壁７２は、誘導加熱コイル１３から離れて配置されているが、上筐体支持面部材７０の右側の側壁７２と誘導加熱コイル１３との間には、導風部材２７が設けられている。導風部材２７は、上筐体支持面部材７０の上に載置される誘導加熱コイル１３の側面と対向配置され、冷却風を誘導加熱コイル１３の方向へ導く。導風部材２７は、本実施の形態では、誘導加熱コイル１３の側面に対向する面は、誘導加熱コイル１３に向かって膨らんだ弓なり形状であり、流入口７３からの冷却風を誘導加熱コイル１３に導く。
The right upper casing support surface member 70 is provided with an inlet 73 on the front side of the induction heating coil 13 and an outlet 74 behind the inlet 73. The right air outlet 83 of the cooling air passage 80 is connected in a generally airtight manner to an inlet 73 that is an inlet of cooling air to the upper housing support surface member 70, and the upper housing support surface member 70 extends from the inlet 73. The cooling air flowing in cools the induction heating coil 13 and travels toward the outlet 74. The right side wall 72 of the upper housing support surface member 70 is disposed away from the induction heating coil 13, but between the right side wall 72 of the upper housing support surface member 70 and the induction heating coil 13, A wind guide member 27 is provided. The air guide member 27 is disposed to face the side surface of the induction heating coil 13 placed on the upper housing support surface member 70, and guides the cooling air toward the induction heating coil 13. In the present embodiment, the air guide member 27 has a bow-like shape that bulges toward the induction heating coil 13 and faces the side surface of the induction heating coil 13, and the cooling air from the inlet 73 is supplied to the induction heating coil 13. Lead to.
左吹出口８２と流入口６３との隙間、及び右吹出口８３と流入口７３との隙間には、気密性のあるクッション材等を挟むことで、両者の気密性をより高めることができ、冷却風路８０から送られる冷却風による誘導加熱コイル１１、１３の冷却効率を高めることができる。
By sandwiching an airtight cushioning material or the like in the gap between the left outlet 82 and the inlet 63 and the gap between the right outlet 83 and the inlet 73, the airtightness of both can be further improved. The cooling efficiency of the induction heating coils 11 and 13 by the cooling air sent from the cooling air passage 80 can be increased.
右側の上筐体支持面部材７０の下には、上筐体支持面部材７０に送られる冷却風が流れる右冷却風路９０が設けられている。本実施の形態の右冷却風路９０は枠状の部材であり、下面には、冷却風の流入口となる右冷却風路流入口９１が形成され、上面には、冷却風の吹出口となる右冷却風路吹出口９２が形成されている。本体筐体１が組み立てられた状態では、右冷却風路９０の上端部に形成された右冷却風路吹出口９２は、右側の上筐体支持面部材７０の下部と概ね気密に接続され、上筐体支持面部材７０と右冷却風路９０とでチャンバを形成する。
A right cooling air passage 90 through which cooling air sent to the upper housing support surface member 70 flows is provided below the right upper housing support surface member 70. The right cooling air passage 90 of the present embodiment is a frame-like member, a right cooling air passage inlet 91 serving as an inlet for cooling air is formed on the lower surface, and an air outlet for cooling air is formed on the upper surface. A right cooling air passage outlet 92 is formed. In a state where the main body housing 1 is assembled, the right cooling air passage outlet 92 formed at the upper end portion of the right cooling air passage 90 is connected to the lower portion of the right upper housing support surface member 70 in an airtight manner. The upper housing support surface member 70 and the right cooling air passage 90 form a chamber.
上筐体支持面部材７０のコイル載置面７１には、複数の支持面流入口７５ａ、７５ｂが設けられている。上から見たときに誘導加熱コイル１３の巻線３１と重なるようにして巻線３１の下方に配置されたものを支持面流入口７５ａ、上から見たときに誘導加熱コイル１３の巻線３１と重ならないようにして巻線３１の外側に配置されたものを支持面流入口７５ｂと区別して称する場合がある。なお、支持面流入口７５ａ、７５ｂに共通する事項について説明する場合には、支持面流入口７５と称する場合がある。
誘導加熱コイル１３の巻線３１の真下に位置する支持面流入口７５ａは、右冷却風路９０から送られる冷却風を誘導加熱コイル１３に吹き付ける噴流ノズルとして機能する。支持面流入口７５ａから送られた冷却風の噴流を巻線３１の下方に接触させることで、巻線３１は衝突噴流熱伝達により冷却効率高く冷却される。
誘導加熱コイル１３の巻線３１とは上から見て重ならない位置に配置された支持面流入口７５ｂから吹き出された冷却風は、巻線３１の側面及び上面を流出口７４に向かって流れ、その過程において強制対流熱伝達により巻線３１を冷却する。
The coil mounting surface 71 of the upper housing support surface member 70 is provided with a plurality of support surface inlets 75a and 75b. The support surface inlet 75a is disposed below the winding 31 so as to overlap the winding 31 of the induction heating coil 13 when viewed from above, and the winding 31 of the induction heating coil 13 when viewed from above. What is disposed outside the winding 31 so as not to overlap with the winding 31 may be referred to as a support surface inlet 75b. In addition, when the matter common to the support surface inflow ports 75a and 75b is described, it may be referred to as a support surface inflow port 75.
The support surface inlet 75 a located directly below the winding 31 of the induction heating coil 13 functions as a jet nozzle that blows cooling air sent from the right cooling air passage 90 onto the induction heating coil 13. By bringing the jet of cooling air sent from the support surface inlet 75a into contact with the lower side of the winding 31, the winding 31 is cooled with high cooling efficiency by heat transfer from the impinging jet.
The cooling air blown out from the support surface inlet 75b arranged at a position not overlapping the winding 31 of the induction heating coil 13 as viewed from above flows on the side surface and the upper surface of the winding 31 toward the outlet 74, In the process, the winding 31 is cooled by forced convection heat transfer.
下筐体２内には、右冷却風路９０の下側に、内部に冷却ファン２５を収納した基板ケースユニット２４（図６にて後述する）が配置されており、右冷却風路９０の下面に形成された右冷却風路流入口９１は、基板ケースユニット２４の後側排気口２４ｃ（図６参照）に接続されている。
In the lower housing 2, a substrate case unit 24 (described later in FIG. 6) in which the cooling fan 25 is housed is disposed below the right cooling air passage 90. The right cooling air passage inlet 91 formed on the lower surface is connected to the rear exhaust port 24c (see FIG. 6) of the substrate case unit 24.
下筐体２の内部であって左側の誘導加熱コイル１１の後方には、下筐体２内と筐体排気口１０とを連通させる風路を形成する排気風路２６が設けられている。排気風路２６は、本体筐体１内を流れた冷却風を、本体筐体１の外部へ排出する風路となっている。
Inside the lower casing 2 and behind the induction heating coil 11 on the left side, an exhaust air path 26 that forms an air path that connects the inside of the lower casing 2 and the casing exhaust port 10 is provided. The exhaust air passage 26 serves as an air passage for discharging the cooling air flowing through the main body housing 1 to the outside of the main body housing 1.
図４に示すように、下筐体２の前部上端部には、下筐体２の上端から手前側に向かって略水平に突出した下筐体係止部３３が設けられている。下筐体係止部３３は、角枠状の上筐体３の上筐体枠５０の手前側の部分に係止される。ここで、図５を参照して、下筐体係止部３３を上筐体３に取り付ける構造について説明する。
As shown in FIG. 4, a lower casing locking portion 33 that protrudes substantially horizontally from the upper end of the lower casing 2 toward the front side is provided at the upper end of the front section of the lower casing 2. The lower housing locking portion 33 is locked to a portion on the near side of the upper housing frame 50 of the upper housing 3 having a square frame shape. Here, with reference to FIG. 5, a structure for attaching the lower housing locking portion 33 to the upper housing 3 will be described.
図５は、実施の形態１に係る上筐体３の上筐体枠５０と下筐体２の前部の組み立てに係る構成を説明する図である。図５（Ａ）は、上筐体３の上筐体枠５０と下筐体２とが分離した状態を示し、図５（Ｂ）は、上筐体３の上筐体枠５０と下筐体２とが組み合わされた状態を示している。上筐体３の上筐体枠５０の下端部の縁には、この下端部の縁から内側に向かって略水平に延在する上筐体フランジ部５１が設けられており（図１６参照）、図５では上筐体枠５０の前部に設けられた上筐体フランジ部５１の近傍を中心に示している。
FIG. 5 is a diagram illustrating a configuration relating to the assembly of the upper casing frame 50 and the front section of the lower casing 2 of the upper casing 3 according to the first embodiment. 5A shows a state where the upper housing frame 50 and the lower housing 2 are separated from each other, and FIG. 5B shows the upper housing frame 50 and the lower housing 3 of the upper housing 3. The state where the body 2 is combined is shown. At the edge of the lower end portion of the upper housing frame 50 of the upper housing 3 is provided an upper housing flange portion 51 extending substantially horizontally from the edge of this lower end portion (see FIG. 16). 5 shows the vicinity of the upper casing flange portion 51 provided at the front portion of the upper casing frame 50 as a center.
図５に示すように、上筐体３の上筐体枠５０の下端に形成された上筐体フランジ部５１の前部は、後方（図５の紙面右側）に向かって延びている。この前側の上筐体フランジ部５１の上側には、後方に向かって開口した凹状の空間が形成されており、この部分を凹部５２と称する。図５（Ａ）に示すように、下筐体２の下筐体係止部３３を、上筐体フランジ部５１の上側に形成された凹部５２に挿入することで、図５（Ｂ）に示すように、下筐体２の前部と上筐体３の上筐体枠５０の前部とが組み合わせられる。
As shown in FIG. 5, the front portion of the upper housing flange portion 51 formed at the lower end of the upper housing frame 50 of the upper housing 3 extends rearward (on the right side in FIG. 5). A concave space that opens rearward is formed on the upper side of the front upper casing flange portion 51, and this portion is referred to as a recess 52. As shown in FIG. 5 (A), the lower housing locking portion 33 of the lower housing 2 is inserted into the recess 52 formed on the upper side of the upper housing flange portion 51, so that FIG. As shown, the front portion of the lower housing 2 and the front portion of the upper housing frame 50 of the upper housing 3 are combined.
なお、本実施の形態においては、下筐体２に一体に形成されたフランジ状の部位を下筐体係止部３３として用いているが、断面Ｌ字型の係止用の部品を下筐体２に上下逆に取り付けることで下筐体係止部３３を形成してもよい。また、本実施の形態においては、上筐体枠５０に一体に設けられた上筐体フランジ部５１の上に形成される凹部５２に、下筐体係止部３３を挿入しているが、このような凹部５２の代わりに、上筐体３に係止用の部品を別途取り付けるなどして、下筐体係止部３３を係止する係止部を形成してもよい。
In the present embodiment, a flange-shaped portion formed integrally with the lower housing 2 is used as the lower housing locking portion 33, but a locking part having an L-shaped cross section is used as the lower housing. You may form the lower housing | casing latching | locking part 33 by attaching to the body 2 upside down. In the present embodiment, the lower housing locking portion 33 is inserted into the recess 52 formed on the upper housing flange portion 51 provided integrally with the upper housing frame 50. Instead of such a recess 52, a locking part for locking the lower housing locking part 33 may be formed by attaching a locking part to the upper housing 3 separately.
次に、下筐体２と上筐体３との後部の組み立てに係る構成を説明する。図４に示すように、上筐体３の上筐体枠５０の後部には、複数の上筐体取付穴５５が形成されている。また、下筐体２の後部には、上筐体取付穴５５と同数の下筐体締結部３４が設けられている。締結部材４０を上筐体取付穴５５に上から挿入し、締結部材４０の先端部分を下筐体締結部３４に締結することで、図３に示すように下筐体２と上筐体３とが固定される。
Next, a configuration relating to the assembly of the rear portions of the lower housing 2 and the upper housing 3 will be described. As shown in FIG. 4, a plurality of upper housing attachment holes 55 are formed in the rear portion of the upper housing frame 50 of the upper housing 3. Further, the same number of lower casing fastening portions 34 as the upper casing mounting holes 55 are provided at the rear of the lower casing 2. The fastening member 40 is inserted into the upper housing attachment hole 55 from above, and the tip portion of the fastening member 40 is fastened to the lower housing fastening portion 34, whereby the lower housing 2 and the upper housing 3 are shown in FIG. And are fixed.
締結部材４０としては例えばネジが用いられ、この場合、下筐体締結部３４は、下筐体２を形成する板金部品にバーリングした後にネジを切って構成され、あるいはナットを溶接したものを組み合わせることで構成される。また、締結部材４０としては例えばタッピングネジを用いることもでき、この場合、下筐体締結部３４は、板金部品の穴をバーリングすることで構成できる。
For example, a screw is used as the fastening member 40, and in this case, the lower housing fastening portion 34 is configured by cutting a screw after burring on a sheet metal part forming the lower housing 2, or a combination of welding nuts. Consists of. In addition, for example, a tapping screw can be used as the fastening member 40. In this case, the lower housing fastening portion 34 can be configured by burring a hole in a sheet metal part.
下筐体２の上面開口の近くであって、下筐体締結部３４（後側）よりも下筐体係止部３３（前側）に近い位置には、左右の誘導加熱コイル１１、１３の巻線３１を接続するための端子台２８が設けられている。誘導加熱コイル１１、１３を構成する巻線３１は、それぞれ、端子台２８に接続され、端子台２８を介して基板ケースユニット２４内の駆動回路及び制御回路と接続される。
The left and right induction heating coils 11 and 13 are positioned near the upper surface opening of the lower housing 2 and closer to the lower housing locking portion 33 (front side) than the lower housing fastening portion 34 (rear side). A terminal block 28 for connecting the winding 31 is provided. The windings 31 constituting the induction heating coils 11 and 13 are each connected to the terminal block 28 and are connected to the drive circuit and the control circuit in the substrate case unit 24 via the terminal block 28.
図６は、実施の形態１に係る基板ケースユニット２４の斜視図である。
基板ケースユニット２４は、図４に示したように、下筐体２内の調理室３７の右側かつ上筐体支持面部材７０の下側に収納されている。
基板ケースユニット２４内には、電子部品２３及び冷却ファン２５が収容されている。電子部品２３は、誘導加熱コイル１１、１２、１３に高周波電力を供給する駆動手段であるインバータ回路、インバータ回路の冷却効率を高めるヒートシンク、及び駆動手段を制御する制御手段であるマイコンや制御回路等の電子部品が実装された回路基板を含んでいる。本実施の形態では、本体筐体１の動作を制御する機能部品の集合体を、制御手段と称する。
FIG. 6 is a perspective view of the substrate case unit 24 according to the first embodiment.
As shown in FIG. 4, the substrate case unit 24 is housed on the right side of the cooking chamber 37 in the lower housing 2 and below the upper housing support surface member 70.
An electronic component 23 and a cooling fan 25 are accommodated in the substrate case unit 24. The electronic component 23 includes an inverter circuit that is a driving unit that supplies high-frequency power to the induction heating coils 11, 12, and 13, a heat sink that increases the cooling efficiency of the inverter circuit, and a microcomputer and a control circuit that are control units that control the driving unit. Circuit board on which the electronic components are mounted. In the present embodiment, an assembly of functional components that control the operation of the main body housing 1 is referred to as control means.
基板ケースユニット２４の外殻において、冷却ファン２５の吸引側には吸気口２４ａが開口し、冷却ファン２５の送出側の上面には、前側排気口２４ｂ、後側排気口２４ｃという２つの排気口が開口している。吸気口２４ａは、筐体吸気口９の下方に配置され（図４参照）、筐体吸気口９と連通する。基板ケースユニット２４の内部は、吸気口２４ａから前側排気口２４ｂ、後側排気口２４ｃに至る一体的な風路として機能する。
In the outer shell of the substrate case unit 24, an intake port 24a is opened on the suction side of the cooling fan 25, and two exhaust ports, a front exhaust port 24b and a rear exhaust port 24c, are provided on the upper surface of the cooling fan 25 on the delivery side. Is open. The air inlet 24a is disposed below the housing air inlet 9 (see FIG. 4) and communicates with the housing air inlet 9. The inside of the substrate case unit 24 functions as an integral air path from the intake port 24a to the front exhaust port 24b and the rear exhaust port 24c.
図７は、実施の形態１に係る基板ケースユニット２４の側面断面図である。図７では、冷却風の流れを矢印で概念的に示している。冷却ファン２５が動作すると、外部の空気は、筐体吸気口９に接続される吸気口２４ａから基板ケースユニット２４内に流入する。基板ケースユニット２４に流入した空気は、冷却ファン２５により吸引及び送出され、一部は奥側（図７の紙面左側）の後側排気口２４ｃから吹き出され、他の一部は電子回路基板に実装されたインバータ回路や放熱フィン等の電子部品２３を冷却した後、手前側（図７の紙面右側）の前側排気口２４ｂから吹き出される。
FIG. 7 is a side sectional view of the substrate case unit 24 according to the first embodiment. In FIG. 7, the flow of the cooling air is conceptually indicated by arrows. When the cooling fan 25 operates, external air flows into the substrate case unit 24 from the air inlet 24 a connected to the housing air inlet 9. The air that has flowed into the substrate case unit 24 is sucked and sent out by the cooling fan 25, part of which is blown out from the rear exhaust port 24c on the back side (left side of FIG. 7), and the other part is sent to the electronic circuit board. After the mounted electronic components 23 such as the inverter circuit and the heat radiating fins are cooled, they are blown out from the front exhaust port 24b on the front side (the right side in FIG. 7).
なお、基板ケースユニット２４の風路構成は一例であり、冷却ファン２５を備え、前側排気口２４ｂ、後側排気口２４ｃから冷却風を送風できる構成であれば、形状及び冷却風の経路はこれに限定するものではなく、同様の作用及び効果が得られる。また、冷却ファン２５は、吸い込んだ空気を前側排気口２４ｂ、後側排気口２４ｃから送出することのできる送風機であれば、任意の構成のものを採用することができ、また、その配置についても図示のものに限定されない。
Note that the airflow configuration of the substrate case unit 24 is merely an example, and the shape and the path of the cooling air can be used as long as the cooling fan 25 is provided and cooling air can be blown from the front exhaust port 24b and the rear exhaust port 24c. However, the same actions and effects can be obtained. The cooling fan 25 can be of any structure as long as it can blow out the sucked air from the front exhaust port 24b and the rear exhaust port 24c. It is not limited to the illustrated one.
図８は、実施の形態１に係る左側の上筐体支持面部材６０及び上筐体支持面部材６０に保持される部品の斜視図である。図９は、実施の形態１に係る左側の上筐体支持面部材６０及び上筐体支持面部材６０に保持される部品の分解斜視図である。
上筐体支持面部材６０のコイル載置面６１の上には、コイルベース１４の上面に支持された誘導加熱コイル１１ａと、コイルベース１４の下面に保持された高透磁率磁性体１８とが配置される。コイルベース１４の上面及び下面には、シリコン等の耐熱性を有する接着剤が充填され、この接着剤を介して、誘導加熱コイル１１ａを構成する巻線３１及び高透磁率磁性体１８が、コイルベース１４に保持される。
FIG. 8 is a perspective view of the left upper housing support surface member 60 and the components held by the upper housing support surface member 60 according to the first embodiment. FIG. 9 is an exploded perspective view of the left upper housing support surface member 60 and components held by the upper housing support surface member 60 according to the first embodiment.
On the coil mounting surface 61 of the upper housing support surface member 60, the induction heating coil 11a supported on the upper surface of the coil base 14 and the high permeability magnetic body 18 held on the lower surface of the coil base 14 are provided. Be placed. The upper surface and the lower surface of the coil base 14 are filled with an adhesive having heat resistance such as silicon, and the winding 31 and the high magnetic permeability magnetic body 18 constituting the induction heating coil 11a are connected to the coil via the adhesive. It is held by the base 14.
コイルベース１４の上面に載置される誘導加熱コイル１１ａの巻線３１は、素線径がφ０．２ｍｍ以下の細い銅又はアルミ等の素線を撚り線としたもので構成することができ、そのようにすることで、φ０．３ｍｍ以上の線材を用いる場合に３．５ｍｍ以上の高さ寸法になるのに比べて誘導加熱コイル１１ａの高さ方向寸法を２．４〜２．８ｍｍに小さくすることができる。また、素線に幅０．０５〜０．２ｍｍで高さ０．５〜３ｍｍの平角線を用いて５〜３０枚を幅方向に重ねて束ねた線（撚り線相当）で巻線を形成することで高さ寸法を０．５〜３ｍｍに小さくすることができる。誘導加熱コイル１１ａの高さ方向の寸法を小さくすることで、キッチン天板２０１の上に載置される上筐体３の高さ寸法を低くすることができるので、調理の作業性を高める効果がある。
The winding 31 of the induction heating coil 11a placed on the upper surface of the coil base 14 can be composed of a strand made of a strand of thin copper or aluminum having a strand diameter of φ0.2 mm or less, By doing so, the height dimension of the induction heating coil 11a is reduced to 2.4 to 2.8 mm compared to the height dimension of 3.5 mm or more when a wire rod of φ0.3 mm or more is used. can do. In addition, a wire is formed with a wire (corresponding to a twisted wire) in which 5 to 30 sheets are stacked in the width direction using a flat wire having a width of 0.05 to 0.2 mm and a height of 0.5 to 3 mm. By doing so, the height dimension can be reduced to 0.5 to 3 mm. By reducing the height dimension of the induction heating coil 11a, the height dimension of the upper casing 3 placed on the kitchen top plate 201 can be reduced, and thus the effect of improving the workability of cooking. There is.
コイルベース１４の上面には、上方に突出する突条体で構成された巻線支持部１４ｄが設けられており、この巻線支持部１４ｄの上に誘導加熱コイル１１ａの巻線３１が載置される。巻線支持部１４ｄの上に巻線３１を配置することで、コイルベース１４の上面と巻線３１の底面との間に冷却風が通過する風路を形成し、巻線３１の底面の冷却効率を高めている。
On the upper surface of the coil base 14, there is provided a winding support portion 14d composed of a protrusion projecting upward, and the winding 31 of the induction heating coil 11a is placed on the winding support portion 14d. Is done. By arranging the winding 31 on the winding support portion 14d, an air path through which cooling air passes is formed between the upper surface of the coil base 14 and the bottom surface of the winding 31, and cooling of the bottom surface of the winding 31 is achieved. Increases efficiency.
上筐体支持面部材６０は、アルミ板などの高導電率で低透磁率の非磁性体の金属板などで構成される。上筐体支持面部材６０及び上筐体支持面部材６０の外側の側壁６２は、誘導加熱コイル１１ａの巻線３１からの高周波磁束の漏れを防止する防磁手段として機能する。このようにすることで、加熱口６ａに載置される被加熱物以外（キッチン天板２０１等）の高周波加熱が抑制され、本体筐体１の外への不要な磁束の漏洩を抑制するとともに、誘導加熱コイル１１ａの底部に配置されるフェライト等の高透磁率磁性体１８の発熱を拡散して冷却風との接触を高めるヒートシンクとしての効果を奏することもできる。
The upper housing support surface member 60 is made of a non-magnetic metal plate having a high conductivity and a low magnetic permeability such as an aluminum plate. The upper housing support surface member 60 and the outer side wall 62 of the upper housing support surface member 60 function as magnetic shielding means for preventing leakage of high-frequency magnetic flux from the winding 31 of the induction heating coil 11a. By doing in this way, the high frequency heating other than the to-be-heated object (kitchen top plate 201 grade | etc.) Mounted in the heating port 6a is suppressed, While suppressing the leakage of the unnecessary magnetic flux outside the main body housing | casing 1. Moreover, the effect as a heat sink which diffuses the heat_generation | fever of the high magnetic permeability magnetic bodies 18, such as a ferrite arrange | positioned at the bottom part of the induction heating coil 11a, and raises a contact with cooling air can also be show | played.
上筐体支持面部材６０の外周に形成された側壁の一部には、通風可能な開口である流入口６３及び流出口６４が形成されている。誘導加熱コイル１１ａを挟んで前面側に設けられているのが流入口６３、背面側に設けられているのが流出口６４である。
An inflow port 63 and an outflow port 64 that are openings through which air can flow are formed in part of the side wall formed on the outer periphery of the upper housing support surface member 60. The inflow port 63 is provided on the front side with the induction heating coil 11a interposed therebetween, and the outflow port 64 is provided on the back side.
流入口６３の手前の側壁６２には、巻線３１を端子台２８に配線するための開口が設けられており、巻線３１の端部に接続された接続線３１ａが通される。接続線３１ａは、上筐体３と下筐体２とを分解して、上筐体３の端子台２８側（前面側）の辺で回転させて裏返してメンテナンス作業ができる程度の長さとするのがよく、そのようにすることで組立性及びメンテナンス性を高める効果がある。
An opening for wiring the winding 31 to the terminal block 28 is provided in the side wall 62 in front of the inflow port 63, and a connection line 31 a connected to the end of the winding 31 is passed therethrough. The connection line 31a has such a length that the upper housing 3 and the lower housing 2 are disassembled, rotated on the side of the terminal block 28 side (front surface side) of the upper housing 3 and turned over so that maintenance work can be performed. In this way, there is an effect of improving assemblability and maintainability.
高透磁率磁性体１８は、フェライト等が用いられ、誘導加熱コイル１１ａの巻線３１から発生する高周波磁束を集束するとともに偏向させて上方に載置される被加熱物に向ける。また、誘導加熱コイル１１ａの下方に磁束が向かうのを抑え、上筐体支持面部材７０やキッチン天板２０１へ高周波磁束が通過するのを抑制している。
The high-permeability magnetic body 18 is made of ferrite or the like, focuses high-frequency magnetic flux generated from the winding 31 of the induction heating coil 11a, deflects it, and directs it toward the object to be heated. Moreover, it suppresses that a magnetic flux goes below the induction heating coil 11a, and suppresses that a high frequency magnetic flux passes to the upper housing | casing support surface member 70 and the kitchen top plate 201. FIG.
図９に示すように、コイルベース１４の下には高透磁率磁性体１８が設けられている。本実施の形態では、一つの高透磁率磁性体を複数に分割して形成されたような形状の複数の高透磁率磁性体１８が設けられており、これら複数の高透磁率磁性体１８の全体としての外形は、誘導加熱コイル１１ａの外形よりも大きく、誘導加熱コイル１１ａの概ね下方全体に配置される。図８に示すように、誘導加熱コイル１１ａの外周よりも外側に高透磁率磁性体１８の一部がはみ出す。
As shown in FIG. 9, a high permeability magnetic body 18 is provided under the coil base 14. In the present embodiment, a plurality of high permeability magnetic bodies 18 having a shape formed by dividing one high permeability magnetic body into a plurality of parts are provided. The outer shape as a whole is larger than the outer shape of the induction heating coil 11a, and is arranged almost entirely below the induction heating coil 11a. As shown in FIG. 8, a part of the high permeability magnetic body 18 protrudes outside the outer periphery of the induction heating coil 11a.
ここで、高透磁率磁性体１８が磁束を集める性能（防磁性能）は、誘導加熱コイル１１ａの周方向の断面積を大きくすることや、誘導加熱コイル１１ａの下方を覆う範囲を広くすることで、向上する。
したがって、誘導加熱コイル１１ａの巻線３１の下方全体を覆うようにして高透磁率磁性体１８の平面積を大きくすることで、高透磁率磁性体１８の高さを大きくすることなく、防磁性能を確保することができる。言い替えると、誘導加熱コイル１１ａの下側に配置される高透磁率磁性体１８の高さ寸法を、下筐体２に設けられた他の４つの誘導加熱コイル１１ｂ、１１ｃ、１１ｄ、１１ｅの下側に配置される高透磁率磁性体１８の高さ寸法よりも小さくした場合でも、誘導加熱コイル１１ａの下側に配置される高透磁率磁性体１８の平面積を相対的に大きくすることで、他の４つの誘導加熱コイル１１ｂ〜１１ｅと同等の防磁性能を確保することができる。上筐体支持面部材６０の上に載置される誘導加熱コイル１１ａの下に配置される高透磁率磁性体１８の高さを抑えることができるので、上筐体３の高さ寸法を低く抑えることができる。このため、上筐体３がキッチン天板２０１から突出する高さが抑えられ、使用者が被加熱物を加熱口６ａの載置する際の上下動作を減らして調理の作業性を高める効果がある。
また、誘導加熱コイル１１ａの巻線３１の下方を高透磁率磁性体１８が覆う範囲を広くすることで、誘導加熱コイル１１ａの下方への漏れ磁束を減少させることができるので、誘導加熱コイル１１ａの下に配置されている上筐体支持面部材６０の不要な発熱が低減する。
Here, the performance (magnetic-shielding performance) that the high-permeability magnetic body 18 collects magnetic flux is to increase the circumferential cross-sectional area of the induction heating coil 11a or to widen the range covering the lower side of the induction heating coil 11a. ,improves.
Therefore, by increasing the plane area of the high permeability magnetic body 18 so as to cover the entire lower portion of the winding 31 of the induction heating coil 11a, the magnetic shielding performance can be increased without increasing the height of the high permeability magnetic body 18. Can be secured. In other words, the height dimension of the high permeability magnetic body 18 disposed below the induction heating coil 11a is set below the other four induction heating coils 11b, 11c, 11d, and 11e provided in the lower housing 2. Even when the height of the high permeability magnetic body 18 disposed on the side is smaller than the height dimension, the plane area of the high permeability magnetic body 18 disposed below the induction heating coil 11a is relatively increased. The same magnetic shielding performance as that of the other four induction heating coils 11b to 11e can be ensured. Since the height of the high magnetic permeability magnetic body 18 disposed under the induction heating coil 11a placed on the upper casing support surface member 60 can be suppressed, the height dimension of the upper casing 3 is reduced. Can be suppressed. For this reason, the height which the upper housing | casing 3 protrudes from the kitchen top plate 201 is restrained, and the effect which raises the workability | operativity of cooking by reducing the up-and-down movement at the time of a user mounting a to-be-heated material in the heating port 6a. is there.
Further, by widening the range in which the high permeability magnetic body 18 covers the lower part of the winding 31 of the induction heating coil 11a, the leakage magnetic flux downward of the induction heating coil 11a can be reduced, so the induction heating coil 11a. Unnecessary heat generation of the upper housing support surface member 60 disposed below the surface is reduced.
それぞれの高透磁率磁性体１８を平面視したときの外形線の少なくとも一つ以上は、誘導加熱コイル１１ａを構成する巻線３１の径方向外側から内側へと横切っている。すなわち、高透磁率磁性体１８の外形線の少なくとも一つと、巻線３１とが、平面視したときに交差している。このようにすることで、高周波磁束を巻線３１の内側と外側の上方に向け、被加熱物の加熱効率を高めるとともに、下方への磁束の到達の抑制効果を高めている。
At least one of the outlines when each high-permeability magnetic body 18 is viewed in plan crosses from the radially outer side to the inner side of the winding 31 constituting the induction heating coil 11a. That is, at least one of the outlines of the high magnetic permeability magnetic body 18 and the winding 31 intersect when viewed in plan. In this way, the high-frequency magnetic flux is directed to the inside of the winding 31 and the outside of the winding 31 to increase the heating efficiency of the object to be heated, and the effect of suppressing the arrival of the magnetic flux downward is enhanced.
また、隣り合う高透磁率磁性体１８同士の間には、隙間が設けられており、この隙間は、高透磁率磁性体１８の高さ寸法よりも小さい。高透磁率磁性体１８同士の間に隙間を設けることで、空気にさらされる高透磁率磁性体１８の表面積を増やし、各高透磁率磁性体１８の熱伝達を高めている。これにより、高透磁率磁性体１８の冷却効率を高め、上筐体支持面部材６０のコイル載置面６１の温度上昇及びキッチン天板２０１の加熱を抑制して、安全性を高めている。
Further, a gap is provided between adjacent high permeability magnetic bodies 18, and this gap is smaller than the height dimension of the high permeability magnetic body 18. By providing a gap between the high permeability magnetic bodies 18, the surface area of the high permeability magnetic body 18 exposed to air is increased, and the heat transfer of each high permeability magnetic body 18 is enhanced. Thereby, the cooling efficiency of the high magnetic permeability magnetic body 18 is increased, and the temperature rise of the coil mounting surface 61 of the upper housing support surface member 60 and the heating of the kitchen top plate 201 are suppressed, thereby improving safety.
また、コイルベース１４の下面には、高透磁率磁性体１８を保持する保持部である保持壁１４ｇが設けられている。この保持壁１４ｇは、例えば、コイルベース１４の下面から下方に向かって延びる壁面を有しており、対向する壁面間に形成される下方に向かって開放された溝の中に、高透磁率磁性体１８が嵌め込まれる。保持壁１４ｇには、隣り合う高透磁率磁性体１８の隙間と対向する位置に、隙間部側面開口１４ａが形成されている。この隙間部側面開口１４ａを介して、高透磁率磁性体１８間の隙間は、上筐体３内の空間と連通する。このため、流入口６３側の比較的圧力の高い高透磁率磁性体１８間の隙間から、流出口６４側の比較的圧力の低い隙間に向けて冷却風が流れ、さらに高透磁率磁性体１８の冷却効率を高めることができる。
Further, a holding wall 14 g which is a holding portion for holding the high permeability magnetic body 18 is provided on the lower surface of the coil base 14. The holding wall 14g has, for example, a wall surface extending downward from the lower surface of the coil base 14, and has a high permeability magnetic property in a groove opened downward between the opposing wall surfaces. The body 18 is fitted. In the holding wall 14g, a gap side opening 14a is formed at a position facing the gap between adjacent high permeability magnetic bodies 18. The gap between the high magnetic permeability magnetic bodies 18 communicates with the space in the upper housing 3 through the gap side opening 14a. For this reason, the cooling air flows from the gap between the high permeability magnetic bodies 18 with relatively high pressure on the inlet 63 side toward the gap with relatively low pressure on the outlet 64 side, and further, the high permeability magnetic body 18. The cooling efficiency can be increased.
また、コイルベース１４の保持壁１４ｇを構成する壁には、高透磁率磁性体１８の外側の側面と対向する位置にも、複数の側面開口１４ｂが設けられている。このため、上筐体３内を流入口６３から流出口６４に向かって流れる冷却風により、高透磁率磁性体１８の外側面が冷却される。
In addition, a plurality of side surface openings 14 b are provided on the wall constituting the holding wall 14 g of the coil base 14 at a position facing the outer side surface of the high permeability magnetic body 18. For this reason, the outer surface of the high magnetic permeability magnetic body 18 is cooled by the cooling air flowing in the upper housing 3 from the inlet 63 toward the outlet 64.
コイルベース１４の外周部に設けられた脚部には取付穴が形成され、上筐体支持面部材６０のコイル載置面６１にはコイルベース締結部６５が設けられている。コイルベース締結部６５は、下筐体２に設けられた下筐体締結部３４と同様の構成である。締結部材４０を、コイルベース１４の脚部の取付穴の上から挿入し、締結部材４０の先端部分をコイルベース締結部６５に締結することで、コイルベース１４と上筐体支持面部材６０とが固定される。
Mounting holes are formed in the legs provided on the outer periphery of the coil base 14, and a coil base fastening portion 65 is provided on the coil placement surface 61 of the upper housing support surface member 60. The coil base fastening portion 65 has the same configuration as the lower housing fastening portion 34 provided in the lower housing 2. The fastening member 40 is inserted from above the mounting hole of the leg portion of the coil base 14, and the tip portion of the fastening member 40 is fastened to the coil base fastening portion 65, whereby the coil base 14, the upper housing support surface member 60, and the like. Is fixed.
上筐体支持面部材６０の背面側の側壁６２の上端には、この上端から背面側に向かって略水平に延びる取り付けフランジが形成されており、取り付けフランジには上筐体支持面締結部６６が形成されている。上筐体支持面締結部６６は、下筐体２に設けられた下筐体締結部３４と同様の構成である。図４に示したように、上筐体３の上筐体枠５０の後部には左支持面取付穴５６が形成されており、締結部材４０を左支持面取付穴５６に上から挿入し、締結部材４０の先端部分を上筐体支持面締結部６６に締結することで、上筐体支持面部材６０の後部と上筐体３とが固定される。
なお、上筐体支持面部材６０の前部は、上筐体フランジ部５１の上に形成される隙間に挿入され（図１６、図１８参照）、これによって上筐体支持面部材６０の前部と下筐体２の前部とが組み合わされる。
At the upper end of the side wall 62 on the back side of the upper housing support surface member 60, a mounting flange extending substantially horizontally from the upper end toward the back surface is formed, and the upper housing support surface fastening portion 66 is formed on the mounting flange. Is formed. The upper housing support surface fastening portion 66 has the same configuration as the lower housing fastening portion 34 provided in the lower housing 2. As shown in FIG. 4, a left support surface mounting hole 56 is formed in the rear portion of the upper housing frame 50 of the upper housing 3, and the fastening member 40 is inserted into the left support surface mounting hole 56 from above, By fastening the distal end portion of the fastening member 40 to the upper housing support surface fastening portion 66, the rear portion of the upper housing support surface member 60 and the upper housing 3 are fixed.
Note that the front portion of the upper housing support surface member 60 is inserted into a gap formed on the upper housing flange portion 51 (see FIGS. 16 and 18). And the front part of the lower housing 2 are combined.
図１０は、実施の形態１に係る右側の上筐体支持面部材７０及び上筐体支持面部材７０に保持された部品の斜視図である。
上筐体支持面部材７０のコイル載置面７１の上には、コイルベース１７の上に取り付けられた誘導加熱コイル１３が載置される。誘導加熱コイル１３の巻線３１は、素線径がφ０．２ｍｍ以下の細い銅又はアルミ等の素線を撚り線としたもので構成することができる。上筐体支持面部材７０は、前述の上筐体支持面部材６０と同様に、アルミ板などの高導電率で低透磁率の非磁性体の金属板などで形成され、誘導加熱コイル１３から漏洩する磁束を抑制する防磁効果、及び冷却効果が得られる。
FIG. 10 is a perspective view of the upper housing support surface member 70 on the right side and the parts held by the upper housing support surface member 70 according to the first embodiment.
On the coil mounting surface 71 of the upper housing support surface member 70, the induction heating coil 13 attached on the coil base 17 is mounted. The winding 31 of the induction heating coil 13 can be constituted by a strand made of a strand such as thin copper or aluminum having a strand diameter of φ0.2 mm or less. Similar to the upper housing support surface member 60 described above, the upper housing support surface member 70 is formed of a non-magnetic metal plate having a high conductivity and a low magnetic permeability, such as an aluminum plate. The magnetic-shielding effect which suppresses the magnetic flux which leaks, and the cooling effect are acquired.
図４に示したように前述の左側の上筐体支持面部材６０のコイル載置面６１は、下筐体２と上筐体３とが組み合わされた状態では、上面視において下筐体２と重ならないように配置される部分のみで構成されていた。一方、右側の上筐体支持面部材７０のコイル載置面７１は、下筐体２と上筐体３とが組み合わされたときに、上面視において下筐体２と重なる部分と重ならない部分とがある。上筐体支持面部材７０のコイル載置面７１のうち、上面視において下筐体２と重なる部分を、コイル載置面中央部７１ａ、下筐体２と重ならない部分を、コイル載置面側部７１ｂと称する。コイル載置面中央部７１ａとコイル載置面側部７１ｂは、同一平面上にはなく、両者の間には段差があり、コイル載置面中央部７１ａの方がコイル載置面側部７１ｂよりも低い。図３、図４に示されるように、上筐体３が下筐体２と組み合わさると、コイル載置面中央部７１ａの下方には、下筐体２の内部空間が位置する。
As shown in FIG. 4, the coil mounting surface 61 of the left upper housing support surface member 60 is the lower housing 2 in a top view when the lower housing 2 and the upper housing 3 are combined. It was composed only of the parts arranged so as not to overlap. On the other hand, the coil mounting surface 71 of the upper housing support surface member 70 on the right side is a portion that does not overlap with the portion that overlaps the lower housing 2 in a top view when the lower housing 2 and the upper housing 3 are combined. There is. Of the coil placement surface 71 of the upper housing support surface member 70, the portion that overlaps the lower housing 2 in top view is the coil placement surface central portion 71a, and the portion that does not overlap the lower housing 2 is the coil placement surface. This is referred to as a side portion 71b. The coil placement surface center portion 71a and the coil placement surface side portion 71b are not on the same plane, and there is a step between them, and the coil placement surface center portion 71a is closer to the coil placement surface side portion 71b. Lower than. As shown in FIGS. 3 and 4, when the upper housing 3 is combined with the lower housing 2, the internal space of the lower housing 2 is located below the coil placement surface central portion 71 a.
コイル載置面中央部７１ａに形成された複数の支持面流入口７５ａ、７５ｂは、右冷却風路９０の右冷却風路吹出口９２（図４参照）に接続され、冷却風を上筐体支持面部材７０の上側の空間に流入させる流入口として機能する。支持面流入口７５ａ、７５ｂから上筐体支持面部材７０の上方に流入する冷却風は、誘導加熱コイル１３よりも手前側に形成された流入口７３からの冷却風と併せて、誘導加熱コイル１３及びその付帯部品を冷却し、背面側の流出口７４から排気される。
The plurality of support surface inlets 75a and 75b formed in the coil mounting surface central portion 71a are connected to the right cooling air passage 92 (see FIG. 4) of the right cooling air passage 90, and the cooling air is sent to the upper casing. It functions as an inflow port that flows into the space above the support surface member 70. The cooling air flowing into the upper housing support surface member 70 from the support surface inlets 75a and 75b is combined with the cooling air from the inlet 73 formed on the near side of the induction heating coil 13, and the induction heating coil. 13 and its accessory parts are cooled and exhausted from the outlet 74 on the back side.
上筐体支持面部材７０には、上筐体支持面部材７０を上筐体枠５０に取り付けるための上筐体支持面締結部７７が設けられている。なお、図１０には一つの上筐体支持面締結部７７のみが示されているが、上筐体支持面部材７０の概ね外周に沿って複数（本実施の形態では４つ、図１７参照）の上筐体支持面締結部７７が設けられており、複数箇所で上筐体支持面部材７０が上筐体枠５０に固定される。上筐体支持面締結部７７は、本実施の形態ではコイル載置面側部７１ｂから上方に向かって突出する筒形状を有し、この筒形状の内周部に、締結部材４０の先端が止め付けられる。
The upper housing support surface member 70 is provided with an upper housing support surface fastening portion 77 for attaching the upper housing support surface member 70 to the upper housing frame 50. FIG. 10 shows only one upper housing support surface fastening portion 77, but there are a plurality (four in this embodiment, see FIG. 17) substantially along the outer periphery of the upper housing support surface member 70. ) Upper housing support surface fastening portions 77 are provided, and the upper housing support surface member 70 is fixed to the upper housing frame 50 at a plurality of locations. In the present embodiment, the upper housing support surface fastening portion 77 has a cylindrical shape protruding upward from the coil placement surface side portion 71b, and the distal end of the fastening member 40 is located on the inner peripheral portion of the cylindrical shape. It can be stopped.
図１１は、実施の形態１に係る右側の上筐体支持面部材７０及び上筐体支持面部材７０に取り付けられた導風部材２７の斜視図である。
コイル載置面中央部７１ａには、コイル載置面中央部７１ａに配置される高透磁率磁性体１９（図１２参照）の底面に冷却風を当てるための磁性体冷却穴７６が設けられている。右冷却風路９０から送られる冷却風は、磁性体冷却穴７６から上筐体支持面部材７０の上に吹き出され、流出口７４に向かって流れる過程で高透磁率磁性体１９の底面に接触し、高透磁率磁性体１９の冷却効率を高めることができる。また、本実施の形態では、磁性体冷却穴７６は、自身の上側に配置される高透磁率磁性体１９と概ね同じ平面形状を有しており、高透磁率磁性体１９の表面のより多くの領域に冷却風を送ることができる。
FIG. 11 is a perspective view of the right upper housing support surface member 70 and the air guide member 27 attached to the upper housing support surface member 70 according to the first embodiment.
The coil mounting surface central portion 71a is provided with a magnetic body cooling hole 76 for applying cooling air to the bottom surface of the high permeability magnetic body 19 (see FIG. 12) disposed in the coil mounting surface central portion 71a. Yes. The cooling air sent from the right cooling air passage 90 is blown out from the magnetic body cooling hole 76 onto the upper housing support surface member 70 and contacts the bottom surface of the high permeability magnetic body 19 in the process of flowing toward the outlet 74. In addition, the cooling efficiency of the high permeability magnetic body 19 can be increased. Further, in the present embodiment, the magnetic body cooling hole 76 has substantially the same planar shape as the high permeability magnetic body 19 disposed on its upper side, and more of the surface of the high permeability magnetic body 19. Cooling air can be sent to the area.
図１２は、実施の形態１に係る右側の上筐体支持面部材７０並びに上筐体支持面部材７０に保持される導風部材２７及び高透磁率磁性体１９の斜視図である。
右側の上筐体支持面部材７０の上にも、複数の高透磁率磁性体１９が設置される。ここで、図１２では、高透磁率磁性体１９の符号を、１９ａと１９ｂとに区別して示している。本体筐体１がキッチンキャビネット２００に設置された状態において、上面視したときに天板開口部２０３と重なる部分に配置されるもの、つまりコイル載置面中央部７１ａの上に配置されるものを「１９ａ」で示し、キッチン天板２０１と重なる部分に大部分が配置されるもの、つまりコイル載置面側部７１ｂに大部分が配置されるものを「１９ｂ」で示している。
12 is a perspective view of the right upper housing support surface member 70 and the air guide member 27 and the high magnetic permeability magnetic body 19 held by the upper housing support surface member 70 according to the first embodiment.
A plurality of high permeability magnetic bodies 19 are also installed on the right upper casing support surface member 70. Here, in FIG. 12, the code | symbol of the high magnetic permeability magnetic body 19 is distinguished and shown to 19a and 19b. In the state where the main body housing 1 is installed in the kitchen cabinet 200, the one disposed on the portion overlapping the top plate opening 203 when viewed from above, that is, the one disposed on the coil mounting surface central portion 71a “19a” indicates that the most part is disposed in the portion overlapping the kitchen top plate 201, that is, the most part is disposed in the coil placement surface side portion 71b.
高透磁率磁性体１９ａ、１９ｂの上には、誘導加熱コイル１３を構成する巻線３１が配置されるが、高透磁率磁性体１９ａの方が高透磁率磁性体１９ｂよりも一つ当たりの平面積が小さく、また、隣り合う高透磁率磁性体１９ａの隙間が大きい。このため、巻線３１の下方のカバー率（上面視において巻線３１に対して高透磁率磁性体が重なる面積の割合）は、高透磁率磁性体１９ａが配置される領域の方が、高透磁率磁性体１９ｂが配置される領域よりも小さい。このようにすることで、誘導加熱コイル１３を構成する巻線３１の下面及び高透磁率磁性体１９ａの表面が、空気に露出する面積を増やし、巻線３１及び高透磁率磁性体１９ａの冷却効率を高めている。
The winding 31 constituting the induction heating coil 13 is disposed on the high magnetic permeability magnetic bodies 19a and 19b. The high magnetic permeability magnetic body 19a is more per one than the high magnetic permeability magnetic body 19b. The plane area is small, and the gap between adjacent high permeability magnetic bodies 19a is large. For this reason, the coverage ratio below the winding 31 (the ratio of the area where the high permeability magnetic body overlaps the winding 31 in the top view) is higher in the region where the high permeability magnetic body 19a is disposed. It is smaller than the region where the magnetic permeability body 19b is disposed. In this way, the lower surface of the winding 31 and the surface of the high permeability magnetic body 19a constituting the induction heating coil 13 increase the area exposed to air, and the winding 31 and the high permeability magnetic body 19a are cooled. Increases efficiency.
また、高透磁率磁性体１９ａ、１９ｂの高さ方向の寸法は、本体筐体１がキッチンキャビネット２００に組み付けられたときにキッチン天板２０１と重なる部分に配置される高透磁率磁性体１９ｂの方が、高透磁率磁性体１９ａよりも小さい。このようにすることで、本体筐体１がキッチンキャビネット２００に組み付けられたときに上筐体３がキッチン天板２０１の上に突出する高さを抑制し、使用者の調理の作業性を高めている。
Moreover, the dimension in the height direction of the high-permeability magnetic bodies 19a and 19b is such that when the main body housing 1 is assembled to the kitchen cabinet 200, the high-permeability magnetic body 19b disposed on the portion that overlaps the kitchen top plate 201. Is smaller than the high permeability magnetic body 19a. By doing in this way, the height which the upper housing | casing 3 protrudes on the kitchen top plate 201 when the main body housing | casing 1 is assembled | attached to the kitchen cabinet 200 is suppressed, and the workability | operativity of a user's cooking is improved. ing.
また、すべての高透磁率磁性体１９ｂを合わせた外形は、その上に載置される巻線３１の外形よりも大きく、概ね巻線３１の下方全体に高透磁率磁性体１９ｂが配置される。また、各高透磁率磁性体１９ｂの外形線の少なくとも一つ以上は、誘導加熱コイル１３を形成する巻線３１の径方向外側から径方向内側へと横切っている。また、隣り合う高透磁率磁性体１９ｂの隙間は、高透磁率磁性体１９ｂの高さ寸法よりも小さい。
このようにすることで、隣り合う高透磁率磁性体１９ｂの隙間からの上筐体支持面部材７０への高周波磁束の到達を抑制して、上筐体支持面部材７０の温度上昇を抑えることができる。また、隣り合う高透磁率磁性体１９ｂの隙間の空気と高透磁率磁性体１９ｂとが接触することで、高透磁率磁性体１９ｂの冷却効果を高めることができる。
Further, the outer shape of all the high permeability magnetic bodies 19b is larger than the outer shape of the winding 31 placed thereon, and the high permeability magnetic body 19b is disposed almost entirely below the winding 31. . In addition, at least one of the outlines of each high permeability magnetic body 19 b crosses from the radially outer side of the winding 31 forming the induction heating coil 13 to the radially inner side. Further, the gap between adjacent high permeability magnetic bodies 19b is smaller than the height dimension of the high permeability magnetic body 19b.
By doing in this way, the arrival of the high frequency magnetic flux to the upper housing support surface member 70 from the gap between the adjacent high magnetic permeability magnetic bodies 19b is suppressed, and the temperature rise of the upper housing support surface member 70 is suppressed. Can do. Moreover, the cooling effect of the high-permeability magnetic body 19b can be enhanced by the contact of the air in the gap between the adjacent high-permeability magnetic bodies 19b with the high-permeability magnetic body 19b.
図１３は、実施の形態１に係る右側の上筐体支持面部材７０並びに上筐体支持面部材７０に保持される導風部材２７及びコイルベース１７の斜視図である。
コイルベース１７の下面には、図１２で示したように配置される高透磁率磁性体１９ａ、１９ｂを保持する溝が形成されており、その溝の中に高透磁率磁性体１９ａ、１９ｂが嵌め込まれる。コイルベース１７の下面に嵌め込まれた高透磁率磁性体１９ａ、１９ｂの上面のほぼすべては、コイルベース１７で覆われる。
FIG. 13 is a perspective view of the right upper housing support surface member 70 and the air guide member 27 and the coil base 17 held by the upper housing support surface member 70 according to the first embodiment.
Grooves for holding the high permeability magnetic bodies 19a and 19b arranged as shown in FIG. 12 are formed on the lower surface of the coil base 17, and the high permeability magnetic bodies 19a and 19b are formed in the grooves. It is inserted. Almost all of the upper surfaces of the high permeability magnetic bodies 19 a and 19 b fitted on the lower surface of the coil base 17 are covered with the coil base 17.
より詳しくは、コイル載置面中央部７１ａに配置される複数の高透磁率磁性体１９ａ（図１２参照）は、それぞれが個別に、コイルベース１７の下面に設けられた保持部（図示せず）に保持される。このコイルベース１７に設けられた高透磁率磁性体１９ａを保持する保持部（図示せず）は、例えば、円板状のコイルベース１７の中心から放射状に延びる一対の壁面を有しており、一対の壁面間に形成される下方に向かって開放された溝の中に、高透磁率磁性体１９ａが嵌め込まれる。また、コイルベース１７の下面には、放射状に配置される高透磁率磁性体１９ａの保持部の外周端同士を結ぶようにして、弧状の壁面が下方に向かって立設されている。このような壁面を設けることで、流入口７３から上筐体支持面部材７０の上に流入した冷却風が、コイルベース１７の上面に配置される巻線３１に効率よく接触するように導くことができる。
More specifically, each of the plurality of high permeability magnetic bodies 19a (see FIG. 12) disposed in the coil mounting surface central portion 71a is individually a holding portion (not shown) provided on the lower surface of the coil base 17. ). The holding portion (not shown) for holding the high permeability magnetic body 19a provided on the coil base 17 has, for example, a pair of wall surfaces extending radially from the center of the disk-shaped coil base 17, High permeability magnetic body 19a is fitted into a groove formed between the pair of wall surfaces and opened downward. Further, on the lower surface of the coil base 17, an arc-shaped wall surface is erected downward so as to connect the outer peripheral ends of the holding portions of the radially high magnetic permeability magnetic body 19 a. By providing such a wall surface, the cooling air flowing from the inlet 73 onto the upper housing support surface member 70 is guided so as to efficiently contact the winding 31 disposed on the upper surface of the coil base 17. Can do.
また、コイル載置面側部７１ｂの上に配置される複数の高透磁率磁性体１９ｂは、コイルベース１７の下面に、まとめて保持される。また、隣り合う高透磁率磁性体１９ｂの隙間の上方に位置するコイルベース１７の上面には、隙間部上面開口１７ａが形成されている。隙間部上面開口１７ａは、コイルベース１７の上下を連通させる開口部である。コイル載置面中央部７１ａに形成された支持面流入口７５ａ、７５ｂから、コイルベース１７の下方の空隙に冷却風が流入し、コイルベース１７に保持された隣り合う高透磁率磁性体１９ｂの隙間を冷却風が流れる。この冷却風が流れる過程で、高透磁率磁性体１９ｂが冷却され、その後冷却風は、コイルベース１７に形成された隙間部上面開口１７ａから上方に噴出して、巻線３１の底面を冷却する。
The plurality of high magnetic permeability magnetic bodies 19 b disposed on the coil placement surface side portion 71 b are held together on the lower surface of the coil base 17. Further, a gap portion upper surface opening 17a is formed on the upper surface of the coil base 17 located above the gap between the adjacent high magnetic permeability magnetic bodies 19b. The clearance upper surface opening 17 a is an opening that allows the upper and lower sides of the coil base 17 to communicate with each other. Cooling air flows into the gap below the coil base 17 from the support surface inlets 75a and 75b formed in the coil mounting surface central portion 71a, and the adjacent high-permeability magnetic body 19b held by the coil base 17 Cooling air flows through the gap. In the process of flowing this cooling air, the high permeability magnetic body 19 b is cooled, and then the cooling air is jetted upward from the gap portion upper surface opening 17 a formed in the coil base 17 to cool the bottom surface of the winding 31. .
コイルベース１７の上面には、誘導加熱コイル１３の巻線３１を保持する巻線支持部１７ｂが設けられている。巻線支持部１７ｂは、コイルベース１７の上面から突出する高さを有しており、本実施の形態では、コイルベース１７の中心から放射状に延びる突条部で構成されている。コイルベース１７の上面から突出した巻線支持部１７ｂの上に巻線３１が保持されることで、コイルベース１７の上面と巻線３１の下面との間に、通風可能な空間が形成される。これにより、コイルベース１７に形成された隙間部上面開口１７ａから噴出した冷却風が、巻線３１の底面と接触してこれを冷却しながら、上筐体支持面部材７０に形成された流出口７４に向かう流れを形成することができる。
On the upper surface of the coil base 17, a winding support portion 17 b that holds the winding 31 of the induction heating coil 13 is provided. The winding support portion 17b has a height that protrudes from the upper surface of the coil base 17, and in the present embodiment, the winding support portion 17b is constituted by a protrusion that extends radially from the center of the coil base 17. By holding the winding 31 on the winding support portion 17 b protruding from the upper surface of the coil base 17, a space allowing ventilation is formed between the upper surface of the coil base 17 and the lower surface of the winding 31. . As a result, the cooling air blown from the gap portion upper surface opening 17a formed in the coil base 17 comes into contact with the bottom surface of the winding 31 and cools it while the outlet formed in the upper housing support surface member 70. A flow toward 74 can be formed.
図１４は、実施の形態１に係る誘導加熱調理機器の誘導加熱コイル１３を通る要部断面図である。この図１４は、誘導加熱コイル１３を通る前後方向の断面であって、誘導加熱調理器の後部を中心に示している。また、図１４には、冷却風の流れを矢印で概念的に示している。図１４を参照して、右側の誘導加熱コイル１３の近傍を流れる冷却風の経路を説明する。
FIG. 14 is a cross-sectional view of a main part passing through induction heating coil 13 of the induction heating cooking appliance according to Embodiment 1. FIG. 14 is a cross-section in the front-rear direction passing through the induction heating coil 13, and mainly shows the rear part of the induction heating cooker. In FIG. 14, the flow of cooling air is conceptually indicated by arrows. With reference to FIG. 14, the path | route of the cooling air which flows through the vicinity of the induction heating coil 13 of the right side is demonstrated.
冷却ファン２５から送出され基板ケースユニット２４の後側排気口２４ｃから吹き出された冷却風は、右冷却風路流入口９１から右冷却風路９０内に入り、コイル載置面中央部７１ａに形成された支持面流入口７５ａから上へと吹き出て、高透磁率磁性体１９ａの底面を冷却する。高透磁率磁性体１９ａを冷却した冷却風の一部は、高透磁率磁性体１９ａの上方に配置された中央寄りの巻線３１を冷却する。冷却風の他の一部は、右側に流れてコイルベース１７内の空隙を通りつつ高透磁率磁性体１９ｂ（図示せず）を冷却し、コイルベース１７の上面に形成された隙間部上面開口１７ａから上方に吹き出て、巻線支持部１７ｂの上の巻線３１の底面を冷却する。
The cooling air sent from the cooling fan 25 and blown out from the rear exhaust port 24c of the substrate case unit 24 enters the right cooling air passage 90 from the right cooling air passage inlet 91 and is formed in the coil mounting surface central portion 71a. The air is blown upward from the support surface inlet 75a, and the bottom surface of the high permeability magnetic body 19a is cooled. A part of the cooling air that has cooled the high magnetic permeability magnetic body 19a cools the winding 31 near the center disposed above the high magnetic permeability magnetic body 19a. The other part of the cooling air flows to the right side and passes through the air gap in the coil base 17 to cool the high permeability magnetic body 19b (not shown), and the gap portion upper surface opening formed on the upper surface of the coil base 17 It blows upward from 17a, and cools the bottom face of the winding 31 on the winding support part 17b.
上筐体支持面部材７０の誘導加熱コイル１３下方はキッチン天板２０１と隙間をあけて配置されており、上筐体支持面部材７０がキッチン天板２０１に接触しないことで、誘導加熱コイル１３、高透磁率磁性体１９ｂ、上筐体支持面部材７０の発熱が直にキッチン天板２０１に熱伝導せず伝熱を抑制することでキッチン天板２０１の温度上昇を抑制して安全性とキッチン天板２０１の熱による劣化を抑制している。誘導加熱コイル１３下方以外の領域においても上筐体支持面部材７０とキッチン天板２０１との間に隙間があいている、又は、上筐体フランジ部５１及びシール材３２が間に挿入されており、直接キッチン天板２０１と接触しないことで更に伝熱を抑制して安全性とキッチン天板２０１の劣化を高めている。また、図１８に示すように上筐体支持面部材６０においても上筐体支持面部材７０同様に直接キッチン天板２０１と接触しない構造であり同様の効果が得られる。
The induction heating coil 13 below the upper housing support surface member 70 is disposed with a gap from the kitchen top plate 201, and the upper housing support surface member 70 does not contact the kitchen top plate 201. The heat generation of the high magnetic permeability magnetic body 19b and the upper housing support surface member 70 is not directly conducted to the kitchen top plate 201, and the heat transfer is suppressed, thereby suppressing the temperature rise of the kitchen top plate 201 and improving safety. Deterioration due to heat of the kitchen top plate 201 is suppressed. There is a gap between the upper housing support surface member 70 and the kitchen top plate 201 in the region other than the lower side of the induction heating coil 13 or the upper housing flange portion 51 and the sealing material 32 are inserted therebetween. In addition, by not directly contacting the kitchen top plate 201, heat transfer is further suppressed to improve safety and deterioration of the kitchen top plate 201. Also, as shown in FIG. 18, the upper housing support surface member 60 has a structure that does not come into direct contact with the kitchen top plate 201 like the upper housing support surface member 70, and the same effect can be obtained.
図１５は、実施の形態１に係る誘導加熱調理器の本体筐体１から通気口カバー８を外してトッププレート７を透視した上面図である。図１５に示す矢印は、冷却風の流れを概念的に示したものである。
図１５に示すように、冷却風路８０の一部は、誘導加熱コイル１１ｂ、１１ｃ、１１ｄ、１１ｅの下側を覆っている。誘導加熱コイル１１ｂ、１１ｃ、１１ｄ、１１ｅの下側に配置された冷却風路８０の上面には、複数のコイル下吹出口８４が開口している。
FIG. 15 is a top view of the top plate 7 with the vent cover 8 removed from the main body casing 1 of the induction heating cooker according to the first embodiment. The arrows shown in FIG. 15 conceptually show the flow of cooling air.
As shown in FIG. 15, a part of the cooling air passage 80 covers the lower side of the induction heating coils 11b, 11c, 11d, and 11e. A plurality of coil lower outlets 84 are opened on the upper surface of the cooling air passage 80 disposed below the induction heating coils 11b, 11c, 11d, and 11e.
基板ケースユニット２４の前側排気口２４ｂ（図示せず）から出て冷却風路流入口８１から冷却風路８０底面に流入した冷却風は、一部が右側に流れ、残りの一部が左側に流れる。
A part of the cooling air flowing out from the front exhaust port 24b (not shown) of the substrate case unit 24 and flowing into the bottom surface of the cooling air channel 80 from the cooling air channel inlet 81 flows to the right side and the remaining part flows to the left side. Flowing.
冷却風路８０内を右側に流れた冷却風は、右吹出口８３及び右側の上筐体支持面部材７０の流入口７３を介して、上筐体３の上方の空間に流入する。上筐体３の右側の上方の空間（上筐体支持面部材７０の上方の空間）に流入した冷却風は、誘導加熱コイル１３を冷却し、その後、流出口７４から上筐体支持面部材７０の外へ流出する。上筐体支持面部材７０の外へ出た冷却風は、本体筐体１の左寄りに配置された排気風路２６に向かって流れ、その過程で誘導加熱コイル１２の近傍を通ってこれを冷却し、排気風路２６を経て筐体排気口１０より本体筐体１の外へ排気される。
The cooling air that has flowed to the right in the cooling air passage 80 flows into the space above the upper housing 3 through the right outlet 83 and the inlet 73 of the right upper housing support surface member 70. The cooling air that has flowed into the space above the right side of the upper housing 3 (the space above the upper housing support surface member 70) cools the induction heating coil 13, and then the upper housing support surface member from the outlet 74. It flows out of 70. Cooling air that has flowed out of the upper housing support surface member 70 flows toward the exhaust air passage 26 disposed on the left side of the main body housing 1, and cools it through the vicinity of the induction heating coil 12 in the process. Then, the air is exhausted from the housing exhaust port 10 to the outside of the main body housing 1 through the exhaust air passage 26.
冷却風路８０内を左側に流れた冷却風は、下筐体２に保持される４つの誘導加熱コイル１１ｂ、１１ｃ、１１ｄ、１１ｅの下方に至る風路と、左側の上筐体支持面部材６０の流入口６３に接続される左吹出口８２に至る風路とに分岐する。
The cooling air that has flowed to the left in the cooling air passage 80 is supplied from the four induction heating coils 11b, 11c, 11d, and 11e held by the lower housing 2 and the left upper housing support surface member. Branches to the air path leading to the left outlet 82 connected to the 60 inlets 63.
冷却風路８０内において、下筐体２に保持される４つの誘導加熱コイル１１ｂ、１１ｃ、１１ｄ、１１ｅの下方に至る風路に流れた冷却風は、冷却風路８０の上面に形成された複数のコイル下吹出口８４から上方に噴き出され、４つの誘導加熱コイル１１ｂ、１１ｃ、１１ｄ、１１ｅの巻線３１や高透磁率磁性体１８を冷却し、その後、排気風路２６を経て筐体排気口１０より本体筐体１の外へ排気される。
In the cooling air passage 80, the cooling air that has flowed through the air passages extending below the four induction heating coils 11 b, 11 c, 11 d, and 11 e held by the lower housing 2 is formed on the upper surface of the cooling air passage 80. The coil 31 is blown upward from the plurality of lower coil outlets 84 to cool the windings 31 of the four induction heating coils 11 b, 11 c, 11 d, 11 e and the high magnetic permeability magnetic body 18, and then through the exhaust air passage 26. The air is exhausted from the body exhaust port 10 to the outside of the main housing 1.
冷却風路８０内において、左側の上筐体支持面部材６０の流入口６３に接続される左吹出口８２に至る風路に流れた冷却風は、左側の左吹出口８２及び流入口６３を経て、上筐体３の上方の左側の空間（上筐体支持面部材６０の上方の空間）に流入して後方に向かって流れる。この冷却風は、左端の誘導加熱コイル１１ａに接触してこれを冷却した後、流出口６４から上筐体支持面部材６０の外へ出る。上筐体支持面部材６０の外へ出た冷却風は、下筐体２に支持される４つの誘導加熱コイル１１ｂ、１１ｃ、１１ｄ、１１ｅの中央及び上端付近の巻線３１に接触してこれらを冷却した後、排気風路２６を経て筐体排気口１０より本体筐体１の外へ排気される。このように、上筐体３には、上筐体支持面部材６０に載置された誘導加熱コイル１１ａを冷却した冷却風が、下筐体２に配置された誘導加熱コイル１１ｂ〜１１ｄに向かって流れる風路が形成されている。
In the cooling air passage 80, the cooling air flowing in the air passage leading to the left air outlet 82 connected to the inlet 63 of the left upper housing support surface member 60 passes through the left air outlet 82 and the inlet 63 on the left side. Then, it flows into the left space above the upper housing 3 (the space above the upper housing support surface member 60) and flows backward. The cooling air comes into contact with the induction heating coil 11a at the left end and cools it, and then goes out of the upper housing support surface member 60 from the outlet 64. Cooling air that has flowed out of the upper housing support surface member 60 contacts the windings 31 near the center and upper end of the four induction heating coils 11b, 11c, 11d, and 11e supported by the lower housing 2. After cooling, the air is exhausted from the housing exhaust port 10 to the outside of the main body housing 1 through the exhaust air passage 26. Thus, the cooling air that has cooled the induction heating coil 11 a placed on the upper housing support surface member 60 is directed to the induction heating coils 11 b to 11 d arranged in the lower housing 2 in the upper housing 3. A flowing air passage is formed.
また、後側排気口２４ｃからの冷却風は、上筐体支持面部材のコイル載置面中央部７１ａに形成された支持面流入口７５ｂや、支持面流入口７５ａ（図１５には図示せず）を通って上方に吹き出される。上方に吹き出された冷却風は、誘導加熱コイル１３のうち下筐体２の上方に配置された部分に接触してこれらを冷却した後、相対的に圧力の低い上筐体支持面部材７０の流出口７４に向かって流れ、この過程において誘導加熱コイル１３のうちコイル載置面側部７１ｂの上に配置された部分に接触してこれらを冷却する。その後冷却風は、流出口７４を通って、上筐体支持面部材７０の上方空間から下筐体２へ流出する。このように、上筐体３の上筐体支持面部材７０の上方の空間には、下筐体２の上方に配置された誘導加熱コイル１３の一部を冷却した冷却風が、上筐体支持面部材７０の上に載置された誘導加熱コイル１３の一部に向かって流れる風路が形成されている。
Further, the cooling air from the rear exhaust port 24c is supported by a support surface inlet 75b formed in the coil mounting surface central portion 71a of the upper housing support surface member or a support surface inlet 75a (not shown in FIG. 15). )) And is blown upward. The cooling air blown upward contacts the portions of the induction heating coil 13 disposed above the lower housing 2 to cool them, and then cools the upper housing support surface member 70 having a relatively low pressure. It flows toward the outlet 74, and in this process, the induction heating coil 13 is brought into contact with the portion disposed on the coil placement surface side portion 71b to cool them. Thereafter, the cooling air flows out from the space above the upper housing support surface member 70 to the lower housing 2 through the outlet 74. Thus, in the space above the upper housing support surface member 70 of the upper housing 3, cooling air that has cooled a part of the induction heating coil 13 disposed above the lower housing 2 is supplied to the upper housing 3. An air passage that flows toward a part of the induction heating coil 13 placed on the support surface member 70 is formed.
図１６は、実施の形態１に係る誘導加熱調理器の本体筐体１の冷却風路８０部分の断面を下から見た図である。この図１６では、誘導加熱調理器の冷却風路８０における断面を下から見た図を示している。
角枠状の上筐体枠５０の外周の下端部には、この下端部から内側に向かって略水平に延びる上筐体フランジ部５１が設けられている。上筐体フランジ部５１の下面には、上筐体フランジ部５１の形状に沿ってシール材３２が貼り付けられている。シール材３２は、ゴム素材や発泡体などの弾性とシール性を備えたものが用いられる。誘導加熱調理器の本体筐体１をキッチンキャビネット２００に組み付けると、キッチン天板２０１の上面にシール材３２が当接し、キッチン天板２０１との間の水密性及び気密性を高めている（図１４参照）。このようにすることで、上筐体３とキッチン天板２０１の間への異物の侵入を抑制することができる。
FIG. 16 is a view of a cross section of the cooling air passage 80 portion of the main body casing 1 of the induction heating cooker according to Embodiment 1 as seen from below. In this FIG. 16, the figure which looked at the cross section in the cooling air path 80 of an induction heating cooking appliance from the bottom is shown.
An upper housing flange portion 51 extending substantially horizontally from the lower end portion to the inside is provided at the lower end portion of the outer periphery of the upper housing frame 50 having a rectangular frame shape. A sealing material 32 is attached to the lower surface of the upper casing flange 51 along the shape of the upper casing flange 51. As the sealing material 32, a material having elasticity and sealing properties such as a rubber material or a foamed material is used. When the main body casing 1 of the induction heating cooker is assembled to the kitchen cabinet 200, the sealing material 32 comes into contact with the upper surface of the kitchen top plate 201, thereby improving the watertightness and airtightness between the kitchen top plate 201 (FIG. 14). By doing in this way, the penetration | invasion of the foreign material between the upper housing | casing 3 and the kitchen top plate 201 can be suppressed.
また、中央の誘導加熱コイル１２を支持するコイルベース１６の下面には、フェライト等の高透磁率磁性体２０が放射状に配置されている。
Further, high permeability magnetic bodies 20 such as ferrite are radially arranged on the lower surface of the coil base 16 that supports the central induction heating coil 12.
次に、右側の上筐体支持面部材７０と上筐体枠５０との組み立てに係る構成を説明する。図１７は、実施の形態１に係る上筐体３の下面の斜視図である。図１７（Ａ）は、上筐体枠５０と上筐体支持面部材７０とが分解された状態を示している。図１７（Ａ）に示すように、上筐体フランジ部５１の対向する前後の辺には、それぞれ、上筐体フランジ切欠部５４が形成されている。この上筐体フランジ切欠部５４の左右方向の幅を、切欠幅Ａと称する。上筐体フランジ切欠部５４は、上筐体フランジ部５１の前後方向に対向する端部同士の距離を広げるようにして、上筐体フランジ部５１の縁の一部を切り欠いて形成されており、前後方向に対向する上筐体フランジ切欠部５４の端部同士の距離を、切欠間距離Ｂと称する。上筐体支持面部材７０の左右方向の幅を底面幅Ｃ、前後方向の長さを底面長さＤとすると、切欠幅Ａは底面幅Ｃよりも大きく、かつ、切欠間距離Ｂは底面長さＤよりも大きい。したがって、上筐体フランジ切欠部５４に、上筐体支持面部材７０の前後の端部が挿入される。
Next, a configuration related to the assembly of the right upper casing support surface member 70 and the upper casing frame 50 will be described. FIG. 17 is a perspective view of the lower surface of the upper housing 3 according to the first embodiment. FIG. 17A shows a state in which the upper housing frame 50 and the upper housing support surface member 70 are disassembled. As shown in FIG. 17A, upper housing flange cutouts 54 are formed on the front and rear sides of the upper housing flange 51 that face each other. The width in the left-right direction of the upper housing flange notch 54 is referred to as a notch width A. The upper housing flange cutout portion 54 is formed by cutting out a part of the edge of the upper housing flange portion 51 so as to increase the distance between the ends facing the front and rear direction of the upper housing flange portion 51. The distance between the ends of the upper casing flange notch 54 facing in the front-rear direction is referred to as a notch distance B. When the width in the left-right direction of the upper housing support surface member 70 is the bottom surface width C and the length in the front-rear direction is the bottom surface length D, the notch width A is larger than the bottom surface width C, and the notch distance B is the bottom surface length. Greater than D. Therefore, the front and rear end portions of the upper housing support surface member 70 are inserted into the upper housing flange cutout portion 54.
上筐体支持面部材７０を上筐体枠５０に組み付ける際には、図１７（Ｂ）に示すように上筐体支持面部材７０の前後方向の端部を、上筐体フランジ切欠部５４に下から上（図１７の紙面上から下）へ挿入する。続けて、図１７（Ｃ）に示すように、上筐体支持面部材７０を、上筐体枠５０の右側に向かって移動させる。このとき、上筐体支持面部材７０の前後方向の端部は、上筐体フランジ部５１の上側に形成されている凹部５２（図５及び後述する図１８参照）に嵌り込み、この凹部５２内を移動する。上筐体支持面部材７０を上筐体枠５０の左端まで移動させると、上筐体フランジ部５１の左側の辺（図１７では右側の辺）及びこれに連なる前後の辺の上に載置される。このように、上筐体支持面部材７０は、上筐体枠５０の上筐体フランジ部５１の上に、着脱自在に係合される。
When the upper housing support surface member 70 is assembled to the upper housing frame 50, the front and rear ends of the upper housing support surface member 70 are connected to the upper housing flange cutout portion 54 as shown in FIG. Are inserted from bottom to top (from top to bottom in FIG. 17). Subsequently, as shown in FIG. 17C, the upper casing support surface member 70 is moved toward the right side of the upper casing frame 50. At this time, an end portion in the front-rear direction of the upper housing support surface member 70 is fitted into a concave portion 52 (see FIG. 5 and FIG. 18 described later) formed on the upper side of the upper housing flange portion 51. Move in. When the upper casing support surface member 70 is moved to the left end of the upper casing frame 50, it is placed on the left side of the upper casing flange 51 (the right side in FIG. 17) and the front and rear sides that are connected thereto. Is done. Thus, the upper housing support surface member 70 is detachably engaged on the upper housing flange portion 51 of the upper housing frame 50.
続けて、上筐体枠５０の上筐体フランジ部５１の上に上筐体支持面部材７０の外周部が乗せられた状態で、上筐体支持面部材７０の上筐体支持面締結部７７と、上筐体フランジ部５１の縁に形成された右支持面取付穴５７との位置を合わせ、下側（図１７の紙面上側）から締結部材４０をこれらに挿入し、締結部材４０の先端部分を上筐体支持面締結部７７に締結する。そうすると、締結部材４０と上筐体支持面締結部７７との間に、上筐体フランジ部５１の右支持面取付穴５７が挟み込まれ、上筐体支持面部材７０が上筐体枠５０に固定される。なお、本実施の形態においては、前及び奥においてはそれぞれ１カ所、左側（図１７の紙面右側）は二カ所で上筐体フランジ部５１に対して上筐体支持面部材７０が固定されているが、適切な取り付け強度を得ることができれば締結位置及び数はこれに限定されない。
Subsequently, the upper housing support surface fastening portion of the upper housing support surface member 70 in a state where the outer peripheral portion of the upper housing support surface member 70 is placed on the upper housing flange portion 51 of the upper housing frame 50. 77 and the right support surface mounting hole 57 formed at the edge of the upper housing flange portion 51 are aligned, and the fastening member 40 is inserted into these from the lower side (upper side of the drawing in FIG. 17). The front end portion is fastened to the upper housing support surface fastening portion 77. Then, the right support surface mounting hole 57 of the upper housing flange 51 is sandwiched between the fastening member 40 and the upper housing support surface fastening portion 77, and the upper housing support surface member 70 is attached to the upper housing frame 50. Fixed. In the present embodiment, the upper case support surface member 70 is fixed to the upper case flange portion 51 at one place in the front and the back, and two places on the left side (the right side in FIG. 17). However, the fastening position and the number are not limited to this as long as appropriate attachment strength can be obtained.
次に、右側の上筐体支持面部材６０と上筐体枠５０との組み立てに係る構成を説明する。図１８は、図１５のＡ−Ａ断面矢視図である。図１８（Ａ）は、図１５のＡ−Ａ断面全体を示し、図１８（Ｂ）、（Ｃ）は、それぞれ（Ａ）のＸ１部、Ｘ２部の拡大図である。
図１８（Ｂ）に示すように、上筐体枠５０の上筐体フランジ部５１の上側には、凹部５２が形成されている。上筐体支持面部材６０を上筐体枠５０に取り付ける際には、まず、この凹部５２内に、右側の上筐体支持面部材６０の前部を嵌め込む。
Next, a configuration related to the assembly of the right upper casing support surface member 60 and the upper casing frame 50 will be described. 18 is a cross-sectional view taken along the line AA in FIG. 18A shows the entire AA cross section of FIG. 15, and FIGS. 18B and 18C are enlarged views of the X1 and X2 parts of FIG.
As shown in FIG. 18B, a recess 52 is formed above the upper housing flange portion 51 of the upper housing frame 50. When attaching the upper housing support surface member 60 to the upper housing frame 50, first, the front portion of the right upper housing support surface member 60 is fitted into the recess 52.
続けて、図１８（Ｃ）に示すように、上筐体支持面部材６０の後部を上筐体枠５０の下に重ね、上筐体支持面締結部６６と左支持面取付穴５６との位置を合わせる。そして、上筐体枠５０の上側から、左支持面取付穴５６及び上筐体支持面締結部６６に締結部材４０を挿入し、締結部材４０の先端を上筐体支持面締結部６６に締結する。このようにすることで、上筐体枠５０の後部に上筐体支持面部材６０の後部が固定される。締結部材４０を上筐体枠５０の上面から着脱することができるので、右側の上筐体支持面部材７０の取り付け方式に比べ、組立性及びメンテナンス性が向上している。なお、図１８では通気口カバー８が図示されているが、上筐体支持面部材６０を上筐体枠５０に組み付ける際には、この通気口カバー８は取り外された状態である。
Subsequently, as shown in FIG. 18C, the rear portion of the upper housing support surface member 60 is overlapped under the upper housing frame 50, and the upper housing support surface fastening portion 66 and the left support surface mounting hole 56 are aligned. Adjust the position. Then, from above the upper housing frame 50, the fastening member 40 is inserted into the left support surface mounting hole 56 and the upper housing support surface fastening portion 66, and the tip of the fastening member 40 is fastened to the upper housing support surface fastening portion 66. To do. By doing so, the rear portion of the upper housing support surface member 60 is fixed to the rear portion of the upper housing frame 50. Since the fastening member 40 can be attached and detached from the upper surface of the upper housing frame 50, the assembling property and the maintenance property are improved as compared with the attachment method of the upper housing supporting surface member 70 on the right side. Although the vent cover 8 is illustrated in FIG. 18, the vent cover 8 is removed when the upper casing support surface member 60 is assembled to the upper casing frame 50.
次に誘導加熱調理器の動作について説明する。
使用者が操作部５に対して加熱動作の指示の操作を行うと、基板ケースユニット２４内の電子回路基板に実装される制御手段により駆動手段が制御される。誘導加熱コイル１１、１２、１３が駆動されて高周波電流が流れると、誘導加熱コイル１１、１２、１３から高周波磁界が発生し、誘導加熱コイル１１、１２、１３の概ね上方のトッププレート７上に載置された被加熱物（図示せず）に渦電流が生じ、被加熱物自体が発熱して加熱調理が行われる。このとき、コイルベース１４、１５、１６、１７に保持される高透磁率磁性体１８、１９、２０の作用により、磁力線は上方の被加熱物へ集中し、これによって加熱効率を高めている。
Next, the operation of the induction heating cooker will be described.
When the user operates the operation unit 5 to instruct the heating operation, the driving unit is controlled by the control unit mounted on the electronic circuit board in the substrate case unit 24. When the induction heating coils 11, 12, and 13 are driven and a high-frequency current flows, a high-frequency magnetic field is generated from the induction heating coils 11, 12, and 13 on the top plate 7 substantially above the induction heating coils 11, 12, and 13. An eddy current is generated in the object to be heated (not shown), and the object to be heated itself generates heat and cooking is performed. At this time, due to the action of the high-permeability magnetic bodies 18, 19, and 20 held by the coil bases 14, 15, 16, and 17, the magnetic lines of force concentrate on the object to be heated, thereby increasing the heating efficiency.
誘導加熱コイル１１、１２、１３を駆動することにより、電子回路基板に実装される電子部品は自己発熱して温度上昇する。また、誘導加熱コイル１１、１２、１３の巻線３１も自己発熱して温度が上昇する。電子回路基板及び誘導加熱コイル１１、１２、１３の機能を維持するには、これらの温度上昇を所定の温度範囲内に抑える必要がある。このため、制御手段は、各所に設けられた温度検知手段（図示せず）から出力される情報に基づいて、冷却ファン２５を駆動制御する。冷却ファン２５が動作することで、冷却風の送風が行われる。
By driving the induction heating coils 11, 12, and 13, the electronic component mounted on the electronic circuit board self-heats and the temperature rises. In addition, the winding 31 of the induction heating coils 11, 12, and 13 also self-heats and the temperature rises. In order to maintain the functions of the electronic circuit board and the induction heating coils 11, 12 and 13, it is necessary to suppress these temperature rises within a predetermined temperature range. For this reason, the control means drives and controls the cooling fan 25 based on information output from temperature detection means (not shown) provided at various places. By operating the cooling fan 25, cooling air is blown.
冷却風は、本体筐体１の外部より、通気口カバー８及び筐体吸気口９を通過して本体筐体１内へ吸い込まれる。筐体吸気口９には基板ケースユニット２４の吸気口２４ａが接続されており、筐体吸気口９から吸い込まれた冷却風は、吸気口２４ａから基板ケースユニット２４へ流入する。基板ケースユニット２４内に流入した冷却風は、冷却ファン２５に吸引、送出され、基板ケースユニット２４内の電子回路基板の部品を冷却した後、前側排気口２４ｂ、後側排気口２４ｃを通って基板ケースユニット２４の外へと流出する。後側排気口２４ｃには右冷却風路９０が接続されるとともに前側排気口２４ｂには冷却風路８０が接続されており、これまでに説明したとおり冷却風は各誘導加熱コイル１１、１３の巻線３１と高透磁率磁性体１８、１９とを冷却した後、排気風路２６を経て筐体排気口１０より本体筐体１外へ排気される。
The cooling air is sucked into the main body housing 1 from the outside of the main body housing 1 through the vent cover 8 and the housing air inlet 9. An intake port 24 a of the substrate case unit 24 is connected to the housing intake port 9, and the cooling air sucked from the housing intake port 9 flows into the substrate case unit 24 from the intake port 24 a. The cooling air flowing into the substrate case unit 24 is sucked and sent out to the cooling fan 25, cools the components of the electronic circuit board in the substrate case unit 24, and then passes through the front exhaust port 24b and the rear exhaust port 24c. It flows out of the substrate case unit 24. The right cooling air passage 90 is connected to the rear exhaust port 24c, and the cooling air passage 80 is connected to the front exhaust port 24b. As described above, the cooling air flows through the induction heating coils 11 and 13 respectively. After the winding 31 and the high permeability magnetic bodies 18 and 19 are cooled, they are exhausted from the housing exhaust port 10 to the outside of the main body housing 1 through the exhaust air passage 26.
以上のように本実施の形態の誘導加熱調理器は、キッチンキャビネット２００の上面に配置されたキッチン天板２０１の天板開口部２０３からキッチンキャビネット２００の格納部２０２に落とし込んで組み付けられるビルトイン型の誘導加熱調理器である。そしてこの誘導加熱調理器の本体筐体１は、上面を開口しキッチンキャビネット２００の格納部２０２内に挿入される下筐体２と、下筐体２よりも大きな幅を有するとともに下筐体２の上に取り付けられ、キッチン天板２０１の上に載置される上筐体３とを備える。そして、上筐体３の支持面を構成する上筐体支持面部材６０、７０の上に、誘導加熱コイル１１、１３の少なくとも一部が載置され、誘導加熱調理器がキッチンキャビネット２００に組み付けられた状態において、誘導加熱コイル１１、１３の少なくとも一部が、上面視においてキッチン天板２０１と重なる。
As described above, the induction heating cooker according to the present embodiment is a built-in type that is assembled by dropping from the top plate opening 203 of the kitchen top plate 201 arranged on the upper surface of the kitchen cabinet 200 into the storage unit 202 of the kitchen cabinet 200. Induction heating cooker. And the main body housing | casing 1 of this induction heating cooking appliance has a lower housing | casing 2 which opens an upper surface and is inserted in the storage part 202 of the kitchen cabinet 200, and has a width | variety larger than the lower housing | casing 2, and lower housing | casing 2 And an upper housing 3 placed on the kitchen top plate 201. And at least one part of the induction heating coils 11 and 13 is mounted on the upper housing | casing support surface members 60 and 70 which comprise the support surface of the upper housing | casing 3, and an induction heating cooking appliance is assembled | attached to the kitchen cabinet 200. In this state, at least a part of the induction heating coils 11 and 13 overlap with the kitchen top plate 201 in a top view.
このように、キッチンキャビネット２００の天板開口部２０３に収容される下筐体２よりも幅の広い上筐体３内に、誘導加熱コイル１１、１３の一部を配置したので、加熱口６同士の間隔を確保することができる。
したがって、加熱口６の上に載置される被加熱物（調理容器）の載置や移動を容易に行うことができるとともに、例えばフライパンなどの被加熱物を振りながら加熱を行う鍋振りなどの調理動作を、他の加熱口６に載置される調理容器への接触を配慮せずとも容易に行うことができる。
また、トッププレート７に、加熱口６が配置されない領域を多く設けることができ、使用者はその領域を、加熱調理以外の調理作業（例えば、調理容器から皿やお椀等の食器への盛り付け作業等）の場所として使用することもできる。したがって、調理の作業性及び作業環境を良好にする効果が得られる。
また、隣接する加熱口６に配置された誘導加熱コイル１１、１２、１３を同時に駆動した場合、電力の波長の差分の周波数で被加熱物である鍋等から干渉音が発生するが、加熱口６同士の間の距離を離すことができるので、そのような干渉音を低減できる効果がある。
As described above, since the induction heating coils 11 and 13 are partially disposed in the upper casing 3 wider than the lower casing 2 accommodated in the top plate opening 203 of the kitchen cabinet 200, the heating port 6 An interval between each other can be secured.
Accordingly, the object to be heated (cooking container) placed on the heating port 6 can be easily placed and moved, and, for example, a pot shaker that performs heating while shaking the object to be heated such as a frying pan. The cooking operation can be easily performed without considering the contact with the cooking container placed on the other heating port 6.
Moreover, the area | region where the heating port 6 is not arrange | positioned many can be provided in the top plate 7, and a user arrange | positions the area | region to cooking work other than heat cooking (for example, arrangement | positioning work to dishes, such as a plate and a bowl, from a cooking container) Etc.). Therefore, the effect of improving the workability and working environment of cooking can be obtained.
In addition, when the induction heating coils 11, 12, and 13 disposed in the adjacent heating ports 6 are simultaneously driven, interference noise is generated from the pan or the like to be heated at the frequency of the difference in power wavelength. Since the distance between 6 can be separated, there is an effect that such interference sound can be reduced.
また、キッチンキャビネット２００の天板開口部２０３に収容される下筐体２よりも面積の広い上筐体３を下筐体２の上に設け、この上筐体３で誘導加熱コイル１１、１３の収容部の一部を構成したので、天板開口部２０３の大きさの制約を受けることなく、誘導加熱コイル１１、１２、１３を配置することができる。このように誘導加熱コイル１１、１２、１３の配置の制約が軽減されるので、各加熱口６に設けられる誘導加熱コイルそれぞれの配置及び構成の自由度も高まる。
例えば本実施の形態では、左側の加熱口６ａの加熱手段を、中心を異ならせて配置された複数の誘導加熱コイル１１で構成した。複数の誘導加熱コイル１１を、中心位置を異ならせて複数配置した場合、加熱口６ａは比較的大きくなるが、上述のように誘導加熱コイル１１の配置スペースを確保できるとともに、鍋の形状及び大きさに応じて各誘導加熱コイル１１を適切に組み合わせて加熱調理を行うことができるので、高機能な誘導加熱調理器を得る効果がある。
In addition, an upper housing 3 having a larger area than the lower housing 2 accommodated in the top plate opening 203 of the kitchen cabinet 200 is provided on the lower housing 2, and the induction heating coils 11, 13 are formed by the upper housing 3. The induction heating coils 11, 12, and 13 can be arranged without being restricted by the size of the top plate opening 203. Thus, since the restrictions of arrangement | positioning of the induction heating coils 11, 12, and 13 are eased, the freedom degree of arrangement | positioning and a structure of each induction heating coil provided in each heating port 6 increases.
For example, in the present embodiment, the heating means of the left heating port 6a is composed of a plurality of induction heating coils 11 arranged with different centers. When a plurality of induction heating coils 11 are arranged at different central positions, the heating port 6a is relatively large, but the arrangement space for the induction heating coil 11 can be secured as described above, and the shape and size of the pan Since each induction heating coil 11 can be appropriately combined and cooked accordingly, there is an effect of obtaining a highly functional induction heating cooker.
また、本実施の形態では、上筐体３の支持面の一部を構成する上筐体支持面部材６０、７０の上に、誘導加熱コイル１１、１３の一部を配置し、上筐体３全体で誘導加熱コイル１１、１３を保持するようにした。このため、例えば下筐体の上部周縁に形成したフランジの上に誘導加熱コイルを載置するような構成よりも、高い強度が得られ、誘導加熱調理器の製造、輸送、及び据付工事の過程における損傷のリスクが軽減され、品質及び信頼性の高い誘導加熱調理器を得ることができる。
また、下筐体２から取り外すことのできる上筐体３の上筐体支持面部材６０、７０に、誘導加熱コイル１１、１３を配置したことにより、誘導加熱コイル１１、１３の組立性及びメンテナンス性が向上し、組立コスト及び保守サービスコストの低い誘導加熱調理器を得る効果がある。
また、上筐体３の上筐体支持面部材６０、７０に誘導加熱コイル１１、１３を配置したことにより、上筐体３内の誘導加熱コイル１１、１３が配置される空間の気密が高まるとともに、この空間には冷却ファン２５から送られる冷却風の冷却風路が形成され、自己発熱部品である誘導加熱コイル１１、１３の巻線３１や高透磁率磁性体１８、１９の冷却が効率的に行える。このため、キッチン天板２０１の加熱による劣化を抑制できる。また、巻線３１の温度を低くできるので、巻線３１の絶縁の劣化による損傷を抑制でき、品質及び信頼性の高い誘導加熱調理器を得る効果がある。
Further, in the present embodiment, a part of the induction heating coils 11 and 13 is arranged on the upper casing support surface members 60 and 70 that constitute a part of the support surface of the upper casing 3, and the upper casing The induction heating coils 11 and 13 are held by the whole 3. For this reason, for example, higher strength can be obtained than the configuration in which the induction heating coil is placed on the flange formed on the upper peripheral edge of the lower casing, and the process of manufacturing, transporting, and installing the induction heating cooker The risk of damage is reduced, and an induction heating cooker with high quality and reliability can be obtained.
Further, since the induction heating coils 11 and 13 are disposed on the upper casing support surface members 60 and 70 of the upper casing 3 that can be removed from the lower casing 2, the assembly and maintenance of the induction heating coils 11 and 13 are maintained. This has the effect of improving the performance and obtaining an induction heating cooker with low assembly cost and low maintenance service cost.
Further, since the induction heating coils 11 and 13 are arranged on the upper casing support surface members 60 and 70 of the upper casing 3, the airtightness of the space where the induction heating coils 11 and 13 in the upper casing 3 are arranged is increased. At the same time, a cooling air path for cooling air sent from the cooling fan 25 is formed in this space, and the cooling of the winding 31 of the induction heating coils 11 and 13 and the high permeability magnetic bodies 18 and 19 which are self-heating parts is efficient. Can be done. For this reason, the deterioration by the heating of the kitchen top plate 201 can be suppressed. Moreover, since the temperature of the coil | winding 31 can be made low, the damage by deterioration of the insulation of the coil | winding 31 can be suppressed, and there exists an effect of obtaining an induction heating cooking appliance with high quality and reliability.
上筐体支持面部材６０、７０はキッチン天板２０１に載置されないことから、誘導加熱コイル１１ａ、１３の動作による発熱が直接キッチン天板に伝熱しないことから、キッチン天板２０１の温度上昇が抑制され、安全性が高くキッチンキャビネットに不用なダメージを与えない加熱調理器とすることができる。
Since the upper casing support surface members 60 and 70 are not placed on the kitchen top plate 201, the heat generated by the operation of the induction heating coils 11a and 13 does not directly transfer to the kitchen top plate. Is suppressed, and it is possible to provide a cooking device that is highly safe and does not cause unnecessary damage to the kitchen cabinet.
上筐体枠５０と上筐体支持面部材６０、７０で構成される誘導加熱コイル１１、１３の配置空間に、冷却風を流入させる複数の流入口（実施の形態１では流入口６３、流入口７３、支持面流入口７５、磁性体冷却穴７６）を設けるとともに、冷却風の流出口（実施の形態１では流出口６４、流出口７４）を設けた。そして、送風手段である冷却ファン２５により、基板ケースユニット２４の前側排気口２４ｂ、後側排気口２４ｃと、排気風路２６との間に圧力差を発生させた。これにより、前記流入口と流出口との間に圧力差が生じ、誘導加熱コイル１１、１２、１３の配置空間に圧力の高い側から低い側へ流れる気流が形成され、誘導加熱コイル１１、１２、１３の巻線３１や高透磁率磁性体１８、１９、２０の冷却効率を高める効果が得られる。したがって、キッチン天板２０１や巻線３１の温度を低くでき、品質に優れた安全性の高い加熱調理器を得る効果がある。
A plurality of inlets for introducing cooling air into the arrangement space of the induction heating coils 11 and 13 composed of the upper casing frame 50 and the upper casing supporting surface members 60 and 70 (in the first embodiment, the inlet 63 and the inlet The inlet 73, the support surface inlet 75, and the magnetic material cooling hole 76) are provided, and the cooling air outlet (the outlet 64 and the outlet 74 in the first embodiment) is provided. Then, a pressure difference was generated between the front exhaust port 24 b and the rear exhaust port 24 c of the substrate case unit 24 and the exhaust air passage 26 by the cooling fan 25 which is a blowing means. Thereby, a pressure difference arises between the said inflow port and an outflow port, and the airflow which flows into a low side from a high pressure side in the arrangement | positioning space of the induction heating coils 11, 12, 13 is formed, and the induction heating coils 11, 12 are formed. , 13 and the high permeability magnetic bodies 18, 19, and 20 can be effectively cooled. Therefore, the temperature of the kitchen top plate 201 and the winding 31 can be lowered, and there is an effect of obtaining a high-quality and safe cooking device.
送風機である冷却ファン２５からの冷却風を誘導加熱コイル１１、１２、１３に導く風路である冷却風路８０を備え、上筐体３の上筐体支持面部材６０、７０の上に形成される誘導加熱コイル１１、１３の配置空間の流入口（流入口６３、流入口７３）に、冷却風路８０の吹出口（左吹出口８２、右吹出口８３）を接続した。すなわち冷却ファン２５の送出側と、上筐体３に形成された通風口の一部である流入口６３、７３とが、冷却風路８０で接続されている。このため、誘導加熱コイル１１、１３が配置された空間に冷却風を直接送ることができ、巻線３１や高透磁率磁性体１８、１９の冷却効率を高める効果が得られる。したがって、冷却ファン２５のファンの回転数を低下させるなどして、送風機の出力を低減することができるとともに、冷却ファン２５の騒音を低減して低騒音の誘導加熱調理器を得ることができる。
A cooling air passage 80 that is an air passage for guiding cooling air from the cooling fan 25 that is a blower to the induction heating coils 11, 12, and 13 is provided and formed on the upper housing support surface members 60 and 70 of the upper housing 3. The outlet (left outlet 82, right outlet 83) of the cooling air passage 80 was connected to the inlet (inlet 63, inlet 73) of the arrangement space of the induction heating coils 11, 13 to be performed. That is, the cooling fan 25 is connected to the delivery side of the cooling fan 25 and the inflow ports 63 and 73 that are part of the ventilation openings formed in the upper housing 3. For this reason, the cooling air can be directly sent to the space where the induction heating coils 11 and 13 are arranged, and the effect of increasing the cooling efficiency of the winding 31 and the high magnetic permeability magnetic bodies 18 and 19 can be obtained. Therefore, it is possible to reduce the fan output of the cooling fan 25 to reduce the output of the blower and reduce the noise of the cooling fan 25 to obtain a low noise induction heating cooker.
右側の上筐体支持面部材７０は外周部の少なくとも一部に側壁７２を備えるとともに、この側壁７２と、側壁７２に対向する誘導加熱コイル１３の側面との間に、導風部材２７を設けた。そして、この導風部材２７の誘導加熱コイル１３と対向する面の一部は、上筐体支持面部材７０の流入側から流出側に向かって、誘導加熱コイル１３の側面に近づいており、流入口７３の近傍から流入した冷却風を誘導加熱コイル１３の外周近傍に導く。このため、流入口７３から流入した冷却風は、流出口７４に向かう過程で、導風部材２７に導かれ、誘導加熱コイル１３の左端側の外周部を迂回することなく誘導加熱コイル１３上を通過する。したがって、誘導加熱コイル１３の冷却効率を高める効果が得られ、無駄な冷却ファン２５の送風を減らすことができるので、冷却ファン２５の騒音を低減でき、低騒音の誘導加熱調理器を得ることができる。
The upper housing support surface member 70 on the right side has a side wall 72 on at least a part of the outer peripheral portion, and an air guide member 27 is provided between the side wall 72 and the side surface of the induction heating coil 13 facing the side wall 72. It was. A part of the surface of the air guide member 27 facing the induction heating coil 13 approaches the side surface of the induction heating coil 13 from the inflow side to the outflow side of the upper housing support surface member 70. Cooling air flowing from the vicinity of the inlet 73 is guided to the vicinity of the outer periphery of the induction heating coil 13. For this reason, the cooling air flowing in from the inflow port 73 is guided to the air guide member 27 in the process toward the outflow port 74, and passes over the induction heating coil 13 without bypassing the outer peripheral portion on the left end side of the induction heating coil 13. pass. Therefore, the effect of increasing the cooling efficiency of the induction heating coil 13 can be obtained, and wasteful ventilation of the cooling fan 25 can be reduced. Therefore, the noise of the cooling fan 25 can be reduced, and a low noise induction heating cooker can be obtained. it can.
左側の上筐体支持面部材６０は、この上筐体支持面部材６０の上に載置される誘導加熱コイル１１ａの側面と対向する左側の側壁６２を備える。そして、この左側の側壁６２と誘導加熱コイル１１ａとは、両者が対向する方向における誘導加熱コイル１１ａの端部、すなわち左側の端部において、最も近づいている。このように左側の側壁６２は、誘導加熱コイル１１ａの左端近傍に位置しているので、流入口６３から流入した冷却風は、流出口６４に向かう過程で、左端側の側壁６２に導かれ、誘導加熱コイル１１ａ上を通過する。したがって、誘導加熱コイル１１ａの冷却効率を高める効果が得られ、無駄な冷却ファン２５の送風を減らすことができるので、冷却ファン２５の騒音を低減でき、低騒音の誘導加熱調理器を得ることができる。
The left upper housing support surface member 60 includes a left side wall 62 that faces the side surface of the induction heating coil 11 a placed on the upper housing support surface member 60. The left side wall 62 and the induction heating coil 11a are closest to each other at the end of the induction heating coil 11a in the direction in which they face each other, that is, the left end. Thus, since the left side wall 62 is located in the vicinity of the left end of the induction heating coil 11a, the cooling air flowing in from the inflow port 63 is guided to the left end side wall 62 in the process toward the outflow port 64, It passes over the induction heating coil 11a. Therefore, the effect of increasing the cooling efficiency of the induction heating coil 11a can be obtained, and the useless ventilation of the cooling fan 25 can be reduced, so that the noise of the cooling fan 25 can be reduced and a low noise induction heating cooker can be obtained. it can.
本体筐体１が格納部２０２に格納された状態において上面視で天板開口部２０３と重なる部分である、右側の上筐体支持面部材７０のコイル載置面中央部７１ａに、通風可能な複数の支持面流入口７５（本発明の第三支持面開口）を設け、この複数の支持面流入口７５を内包する大きさの右冷却風路吹出口９２を有する右冷却風路９０を支持面流入口７５の下方に設けた。そして、上筐体支持面部材７０と右冷却風路９０とを接続した。このため、上筐体支持面部材７０と右冷却風路９０とでチャンバが形成され、支持面流入口７５から噴流が噴出され、上方に配置された誘導加熱コイル１３を衝突噴流熱伝達で冷却することができる。したがって、誘導加熱コイル１３の冷却効率が高まり、上筐体枠５０と上筐体支持面部材７０とで形成される上筐体３の空間に、上面視で一部がキッチン天板２０１と重なるように誘導加熱コイル１３を配置しても、誘導加熱コイル１３の巻線３１は十分に冷却され、巻線３１の温度を低くすることができて品質に優れた安全性の高い加熱調理器を得る効果がある。また、上筐体支持面部材７０と右冷却風路９０とを接続したことから、上筐体支持面部材７０は右冷却風路９０で支持され、上筐体支持面部材７０の強度が構造的に増す。このため、誘導加熱調理器の輸送及び据付作業の際に、上筐体支持面部材７０の変形及び損傷が抑制され、品質を高める効果がある。
Ventilation is possible through the coil mounting surface central portion 71a of the upper housing support surface member 70 on the right side, which is a portion overlapping the top plate opening 203 in a top view when the main body housing 1 is stored in the storage portion 202. A plurality of support surface inlets 75 (third support surface openings of the present invention) are provided, and a right cooling air passage 90 having a right cooling air passage outlet 92 having a size including the plurality of support surface inlets 75 is supported. It was provided below the surface inlet 75. And the upper housing | casing support surface member 70 and the right cooling air path 90 were connected. Therefore, a chamber is formed by the upper housing support surface member 70 and the right cooling air passage 90, a jet is ejected from the support surface inlet 75, and the induction heating coil 13 disposed above is cooled by collision jet heat transfer. can do. Accordingly, the cooling efficiency of the induction heating coil 13 is increased, and a part of the space of the upper casing 3 formed by the upper casing frame 50 and the upper casing support surface member 70 overlaps with the kitchen top plate 201 in a top view. Thus, even if the induction heating coil 13 is arranged, the winding 31 of the induction heating coil 13 is sufficiently cooled, the temperature of the winding 31 can be lowered, and a high-quality and highly safe heating cooker is obtained. There is an effect to get. Further, since the upper housing support surface member 70 and the right cooling air passage 90 are connected, the upper housing support surface member 70 is supported by the right cooling air passage 90, and the strength of the upper housing support surface member 70 is structured. Increase. For this reason, the deformation | transformation and damage of the upper housing | casing support surface member 70 are suppressed in the case of transport and installation work of an induction heating cooking appliance, and there exists an effect which improves quality.
誘導加熱コイル１３の巻線３１の下方に配置され、巻線３１から発生する高周波磁界を集束させる複数の高透磁率磁性体１９と、巻線３１及び高透磁率磁性体１９を保持するコイルベース１７とを備えた。そして、上面視において高透磁率磁性体１９が巻線３１をカバーする割合を示す下方カバー率は、本体筐体１がキッチンキャビネット２００に組み込まれたときに天板開口部２０３と重なる領域（高透磁率磁性体１９ａ）では、キッチン天板２０１と重なる領域（高透磁率磁性体１９ｂ）に比べて低い。このように天板開口部２０３と重なる領域に配置される巻線３１の下面の一部が空気に露出するようするとともに、高透磁率磁性体１９同士の間隔を広くすることで、冷却風への巻線３１及び高透磁率磁性体１９の接触が増える。このため、巻線３１及び高透磁率磁性体１９の冷却効率が高まるとともに、通風の障害が軽減されて圧力損失を少なくできる。したがって、冷却ファン２５の送風を減らすことができるので、冷却ファン２５の騒音を低減でき、低騒音化できる。また、上筐体枠５０と上筐体支持面部材７０とで形成される上筐体３に、上面視でキッチン天板２０１と重なるようにして誘導加熱コイル１３を配置しても、十分に冷却され誘導加熱コイル１３の巻線３１の温度を低くすることができ品質に優れた安全性の高い加熱調理器を得る効果がある。
A plurality of high permeability magnetic bodies 19 that are arranged below the winding 31 of the induction heating coil 13 and focus a high-frequency magnetic field generated from the winding 31, and a coil base that holds the winding 31 and the high permeability magnetic body 19 17. The lower cover ratio, which indicates the ratio of the high permeability magnetic body 19 covering the winding 31 in the top view, is a region that overlaps the top plate opening 203 when the main body housing 1 is incorporated in the kitchen cabinet 200 (high The permeability magnetic body 19a) is lower than the area overlapping with the kitchen top plate 201 (high permeability magnetic body 19b). In this way, a part of the lower surface of the winding 31 arranged in the region overlapping with the top plate opening 203 is exposed to the air, and the space between the high permeability magnetic bodies 19 is widened, so that the cooling air can be supplied. The contact between the winding 31 and the high permeability magnetic body 19 increases. For this reason, while the cooling efficiency of the coil | winding 31 and the high magnetic permeability magnetic body 19 increases, the obstruction | occlusion of ventilation is reduced and pressure loss can be decreased. Therefore, since the ventilation of the cooling fan 25 can be reduced, the noise of the cooling fan 25 can be reduced and the noise can be reduced. Even if the induction heating coil 13 is arranged on the upper casing 3 formed by the upper casing frame 50 and the upper casing supporting surface member 70 so as to overlap the kitchen top plate 201 in a top view, it is sufficient. There is an effect that the temperature of the winding 31 of the induction heating coil 13 that is cooled can be lowered, and a high-quality and safe cooking device with excellent quality can be obtained.
高透磁率磁性体１９の高さ方向寸法は、上面視においてキッチン天板２０１と重なる部分に配置されるもの（高透磁率磁性体１９ｂ）は、天板開口部２０３と重なる部分に配置されるもの（高透磁率磁性体１９ａ）に比べて小さくした。このため、上筐体３の高さ寸法を小さくでき、キッチン天板２０１からの上筐体３の突出寸法が小さくなる。したがって、被加熱物のトッププレート７の上への載置に伴う上下方向の移動距離を小さくでき、調理の作業性が良好な加熱調理器を得る効果がある。
The dimension of the high permeability magnetic body 19 in the height direction is arranged in a portion overlapping the kitchen top plate 201 in the top view (high permeability magnetic body 19b) is arranged in the portion overlapping the top plate opening 203. It was made smaller than the one (high permeability magnetic body 19a). For this reason, the height dimension of the upper housing | casing 3 can be made small, and the protrusion dimension of the upper housing | casing 3 from the kitchen top plate 201 becomes small. Therefore, the moving distance in the vertical direction associated with the placement of the object to be heated on the top plate 7 can be reduced, and there is an effect of obtaining a cooking device with good cooking workability.
上面視においてキッチン天板２０１と重なる部分に配置される高透磁率磁性体１８、１９ｂの外形は、巻線３１の外形よりも大きく、巻線３１の概ね下方全体に配置される。また、複数の高透磁率磁性体１８、１９が巻線３１の下方に並べて配置されており、各高透磁率磁性体１８、１９の外形線の少なくとも一つは、巻線３１の径方向外側から径方向内側へ横切っている。また、隣り合う高透磁率磁性体１８、１９の隙間は、高透磁率磁性体１８、１９の高さ寸法よりも小さくした。このため、高周波磁束を巻線３１の内側と外側の上方に向け、被加熱物の加熱効率を高めるとともに、下方への磁束の到達の抑制効果を高め、上筐体支持面部材６０、７０やキッチン天板２０１の加熱を抑制して安全性を高める効果がある。また、高透磁率磁性体１８、１９同士の間に隙間を設けることで、高透磁率磁性体１８、１９の表面積を増やし、空気との接触を増やして熱伝達を高め冷却効率を高めることができる。隣り合う高透磁率磁性体１８、１９の隙間を適切に調整することで、高周波磁束の上筐体支持面部材６０、７０への到達を抑制して、上筐体支持面部材６０、７０の温度上昇及びキッチン天板２０１の加熱を抑制し、安全性を高める効果がある。
The outer shape of the high-permeability magnetic bodies 18 and 19b arranged in the portion overlapping the kitchen top plate 201 in the top view is larger than the outer shape of the winding 31 and is arranged almost entirely below the winding 31. A plurality of high permeability magnetic bodies 18, 19 are arranged side by side below the winding 31, and at least one of the outlines of each of the high permeability magnetic bodies 18, 19 is on the radially outer side of the winding 31. Crosses radially inward. Further, the gap between the adjacent high magnetic permeability magnetic bodies 18 and 19 was made smaller than the height dimension of the high magnetic permeability magnetic bodies 18 and 19. For this reason, the high frequency magnetic flux is directed to the upper side inside and outside the winding 31 to increase the heating efficiency of the object to be heated, and the effect of suppressing the arrival of the magnetic flux downward is enhanced. There is an effect of suppressing the heating of the kitchen top plate 201 and improving safety. Further, by providing a gap between the high magnetic permeability magnetic bodies 18 and 19, the surface area of the high magnetic permeability magnetic bodies 18 and 19 can be increased, the contact with air can be increased, heat transfer can be improved, and cooling efficiency can be improved. it can. By appropriately adjusting the gap between the adjacent high magnetic permeability magnetic bodies 18 and 19, the high frequency magnetic flux is prevented from reaching the housing support surface members 60 and 70, and the upper housing support surface members 60 and 70 are There is an effect of suppressing the temperature rise and heating of the kitchen top plate 201 and improving safety.
コイルベース１４の高透磁率磁性体１８を保持する保持壁１４ｇに、隙間部側面開口１４ａ、側面開口１４ｂを設けた。高透磁率磁性体１８間の隙間と対向する位置に隙間部側面開口１４ａを設けることで、この隙間部側面開口１４ａを介して高透磁率磁性体１８間の隙間と上筐体３の上方空間との通風が行え、上筐体支持面部材６０の流入口６３側の圧力の高い隙間から、流出口６４側の圧力の低い隙間に向けて冷却風が流れるので、高透磁率磁性体１８の隙間構成面の冷却効率を高めることができる。また、高透磁率磁性体１８の側面に対向する位置に側面開口１４ｂを設けたことで、側面開口１４ｂから高透磁率磁性体１８の外周側面が上筐体３の上方空間に露出するので、上筐体３内を流入口６３から流出口６４へ流れる冷却風で、高透磁率磁性体１８の外周側面を冷却して冷却効率を高める効果がある。
A clearance side opening 14a and a side opening 14b are provided on the holding wall 14g for holding the high permeability magnetic body 18 of the coil base 14. By providing the gap side opening 14a at a position opposite to the gap between the high permeability magnetic bodies 18, the gap between the high permeability magnetic bodies 18 and the space above the upper housing 3 via the gap side opening 14a. The cooling air flows from the high pressure gap on the inlet 63 side of the upper housing support surface member 60 toward the low pressure gap on the outlet 64 side, so that the high permeability magnetic body 18 It is possible to increase the cooling efficiency of the gap constituting surface. Further, by providing the side opening 14b at a position facing the side surface of the high permeability magnetic body 18, the outer peripheral side surface of the high permeability magnetic body 18 is exposed from the side opening 14b to the upper space of the upper housing 3. Cooling air flowing from the inlet 63 to the outlet 64 in the upper housing 3 has an effect of cooling the outer peripheral side surface of the high magnetic permeability magnetic body 18 to increase the cooling efficiency.
コイルベース１７の上面に巻線支持部１７ｂを設け、コイルベース１７の上面には、高透磁率磁性体１９間の隙間の直上に、開口部である隙間部上面開口１７ａを設けた。これにより、隣り合う高透磁率磁性体１９の隙間に露出する面及び巻線３１の下面の冷却効率を高める効果がある。
A winding support portion 17 b is provided on the upper surface of the coil base 17, and a gap portion upper surface opening 17 a that is an opening portion is provided on the upper surface of the coil base 17 immediately above the gap between the high permeability magnetic bodies 19. Thereby, there is an effect of increasing the cooling efficiency of the surface exposed to the gap between the adjacent high magnetic permeability magnetic bodies 19 and the lower surface of the winding 31.
本体筐体１がキッチンキャビネット２００に組み付けられた状態において、上面視にて天板開口部２０３と重なる上筐体支持面部材６０、７０の領域に配置される高透磁率磁性体１８、１９の下方の、上筐体支持面部材６０、７０に、それぞれ磁性体冷却穴６７ｄ、磁性体冷却穴７６を設けた。このため、高透磁率磁性体１８、１９の底面を、冷却風で直接的に冷却できるので、冷却効率を向上させる効果がある。
In a state where the main body housing 1 is assembled to the kitchen cabinet 200, the high permeability magnetic bodies 18 and 19 disposed in the region of the upper housing support surface members 60 and 70 that overlap the top plate opening 203 in a top view. The lower body support surface members 60 and 70 on the lower side were provided with a magnetic body cooling hole 67d and a magnetic body cooling hole 76, respectively. For this reason, the bottom surfaces of the high magnetic permeability magnetic bodies 18 and 19 can be directly cooled by the cooling air, which has an effect of improving the cooling efficiency.
上筐体支持面部材６０、７０を非磁性体の金属板で形成したことにより、上筐体支持面部材６０、７０と誘導加熱コイル１１、１３との間に防磁手段として非磁性体の金属板を挿入する必要がなくなった。このため、上筐体３の高さ寸法を低くできるとともに、部品点数が減り部品コスト及び組立コストを低減できる。また、上筐体支持面部材６０、７０を構成するアルミ等の非磁性体の金属板は、熱伝導率が高いので、それらの上に載置される高透磁率磁性体１８、１９の熱を拡散して冷却することができ、冷却効率を高める効果が得られる。
By forming the upper housing support surface members 60 and 70 from a nonmagnetic metal plate, a nonmagnetic metal is used as a magnetic shield between the upper housing support surface members 60 and 70 and the induction heating coils 11 and 13. It is no longer necessary to insert a board. For this reason, while the height dimension of the upper housing | casing 3 can be made low, a number of parts can reduce and part cost and assembly cost can be reduced. Further, since the non-magnetic metal plate such as aluminum constituting the upper housing support surface members 60 and 70 has high thermal conductivity, the heat of the high permeability magnetic bodies 18 and 19 placed on them is high. Can be diffused and cooled, and the effect of increasing the cooling efficiency can be obtained.
上筐体支持面部材６０、７０を非磁性体の金属板で構成し、コイル載置面６１、７１の外周に側壁６２、７２を設けたことにより、巻線３１から側面方向へ高周波磁束の漏れを防いで安全性の高い誘導加熱調理器とする効果がある。
The upper casing support surface members 60 and 70 are made of a non-magnetic metal plate, and the side walls 62 and 72 are provided on the outer circumferences of the coil mounting surfaces 61 and 71, so that high-frequency magnetic flux is generated from the winding 31 in the lateral direction. It has the effect of preventing leakage and making the induction heating cooker highly safe.
本体筐体１がキッチンキャビネット２００に組み付けられたときに上面視においてキッチン天板２０１と重なる上筐体支持面部材６０、７０の上に、少なくとも一部が配置される誘導加熱コイル１１ａ、１３の巻線３１は、素線径がφ０．２ｍｍ以下の素線で形成した。これにより、上筐体３の高さ寸法を小さくできて上筐体３が天板開口部２０３の上から突出する高さを低くすることができるので、調理の作業性を高めることができる。また、巻線３１の材料使用量を減らせることから、誘導加熱調理器の製造コストを低減する効果がある。
Inductive heating coils 11a and 13 at least partially disposed on upper housing support surface members 60 and 70 that overlap with the kitchen top plate 201 in a top view when the main body housing 1 is assembled to the kitchen cabinet 200. The winding 31 was formed of a strand having a strand diameter of φ0.2 mm or less. Thereby, the height dimension of the upper housing | casing 3 can be made small and the height which the upper housing | casing 3 protrudes from the top-plate opening part 203 can be made low, Therefore The workability | operativity of cooking can be improved. Moreover, since the material usage-amount of the coil | winding 31 can be reduced, there exists an effect which reduces the manufacturing cost of an induction heating cooking appliance.
上筐体３の上筐体枠５０の対向する辺には、上筐体支持面部材７０の縁を係止する上筐体フランジ部５１を設け、この上筐体フランジ部５１に隣接して上筐体支持面部材７０の縁が挿入される上筐体フランジ切欠部５４を設けた。そして、上筐体フランジ切欠部５４に挿入された上筐体支持面部材７０を上筐体フランジ部５１の方へスライドさせると、上筐体枠５０の上筐体フランジ部５１に上筐体支持面部材７０が係合されるようにした。上筐体支持面部材７０を移動させることで容易に上筐体枠５０に対して着脱できるので、誘導加熱調理器の組立性及びメンテナンス性を高める効果がある。本実施の形態では、上筐体枠５０の対向する二辺とそれらに連なる一辺に上筐体フランジ部５１を設け、三辺の上筐体フランジ部５１で上筐体支持面部材７０を支持するようにしたので、上筐体支持面部材７０の取り付け強度を高めることができ、組立、輸送、及び据付における誘導加熱調理器の損傷が軽減され、品質の高い誘導加熱調理器とすることができる効果がある。
On the opposite side of the upper casing frame 50 of the upper casing 3, an upper casing flange portion 51 that locks the edge of the upper casing supporting surface member 70 is provided, and adjacent to the upper casing flange portion 51. An upper casing flange cutout portion 54 into which an edge of the upper casing support surface member 70 is inserted is provided. Then, when the upper housing support surface member 70 inserted into the upper housing flange cutout portion 54 is slid toward the upper housing flange portion 51, the upper housing flange portion 51 is moved to the upper housing flange portion 51. The support surface member 70 is engaged. Since the upper casing support surface member 70 is moved, it can be easily attached to and detached from the upper casing frame 50, so that there is an effect of improving the assemblability and maintenance of the induction heating cooker. In the present embodiment, the upper housing flange portion 51 is provided on the two opposite sides of the upper housing frame 50 and one side connected thereto, and the upper housing support surface member 70 is supported by the upper housing flange portion 51 on the three sides. Therefore, the attachment strength of the upper housing support surface member 70 can be increased, damage to the induction cooking device during assembly, transportation, and installation is reduced, and a high quality induction heating cooking device can be obtained. There is an effect that can be done.
左側の上筐体支持面部材６０は、その前側の端部（第一の端部）については上筐体フランジ部５１の上に形成される凹部５２に挿入される。また、上筐体支持面部材６０の後側の端部（第二の端部）には、ネジ等の締結部材４０の先端を係止する上筐体支持面締結部６６を設けるとともに、上筐体３の上筐体枠５０に左支持面取付穴５６を形成し、左支持面取付穴５６及び上筐体支持面締結部６６に上から挿入された締結部材４０の先端を、上筐体支持面締結部６６にて係止するようにした。このようにして、上筐体支持面部材６０の前側の端部と後側の端部が、それぞれ上筐体枠５０に取り付けられる。上筐体３の上側から締結部材４０を着脱できるので、誘導加熱調理器の組立性を高めて製造コストを低減できるとともに、メンテナンス性を高めて品質コストを低減する効果がある。
The left upper casing support surface member 60 is inserted into a recess 52 formed on the upper casing flange 51 at the front end (first end) thereof. In addition, an upper housing support surface fastening portion 66 that locks the tip of the fastening member 40 such as a screw is provided at the rear end portion (second end portion) of the upper housing support surface member 60. A left support surface mounting hole 56 is formed in the upper housing frame 50 of the housing 3, and the tip of the fastening member 40 inserted from above into the left support surface mounting hole 56 and the upper housing support surface fastening portion 66 is connected to the upper housing frame 50. The body support surface fastening portion 66 is used for locking. In this way, the front end portion and the rear end portion of the upper housing support surface member 60 are respectively attached to the upper housing frame 50. Since the fastening member 40 can be attached and detached from the upper side of the upper housing 3, it is possible to improve the assembling property of the induction heating cooker and reduce the manufacturing cost, and to improve the maintainability and reduce the quality cost.
上筐体３の上筐体枠５０に上筐体フランジ部５１を設けて上筐体フランジ部５１の上に凹部５２を形成するとともに、凹部５２に挿入される下筐体係止部３３を下筐体２に設け、下筐体係止部３３を凹部５２に挿入することで、下筐体２の前部と上筐体３の前部とが係合されるようにした。また、上筐体３の上筐体枠５０の後部に上筐体取付穴５５を設けるとともに、下筐体２に下筐体締結部３４を設け、上筐体枠５０の上側から上筐体取付穴５５及び下筐体締結部３４に挿入される締結部材４０の先端を、下筐体締結部３４に係止させるようにした。また、上筐体３に配置される誘導加熱コイル１１、１３の巻線３１の接続線３１ａを接続する端子台２８を、下筐体２の下筐体締結部３４よりも下筐体係止部３３に近い位置に設けた。
このため、誘導加熱調理器の組立及びメンテナンス作業の際には、前端（下筐体係止部３３が挿入された凹部５２）を軸として上筐体３を回転させることで、下筐体係止部３３が上筐体３の凹部５２に着脱される。したがって、端子台２８を下筐体係止部３３寄りに配置したため、その着脱動作に伴う巻線３１の配線部分の長さを短くでき、駆動電力のロスを低減できるとともに配線の線材コストを低減できる。また、配線がたるんで他の部品に干渉することや組立の際に不必要な場所が挟まるなどの不具合を軽減でき、組立性及びメンテナンス性を高める効果がある。
An upper housing flange portion 51 is provided on the upper housing frame 50 of the upper housing 3 to form a recess 52 on the upper housing flange portion 51, and a lower housing locking portion 33 inserted into the recess 52 is provided. The lower housing 2 is provided in the lower housing 2 and the lower housing locking portion 33 is inserted into the recess 52 so that the front portion of the lower housing 2 and the front portion of the upper housing 3 are engaged. In addition, an upper housing attachment hole 55 is provided in the rear portion of the upper housing frame 50 of the upper housing 3, and a lower housing fastening portion 34 is provided in the lower housing 2. The front end of the fastening member 40 inserted into the mounting hole 55 and the lower housing fastening portion 34 is locked to the lower housing fastening portion 34. Further, the terminal block 28 for connecting the connection wire 31 a of the winding 31 of the induction heating coils 11 and 13 arranged in the upper casing 3 is locked to the lower casing than the lower casing fastening portion 34 of the lower casing 2. It was provided at a position close to the portion 33.
For this reason, during assembly and maintenance work of the induction heating cooker, the upper casing 3 is rotated around the front end (the recess 52 in which the lower casing locking portion 33 is inserted) as an axis, thereby lowering the lower casing. The stopper 33 is attached to and detached from the recess 52 of the upper housing 3. Therefore, since the terminal block 28 is disposed closer to the lower housing locking portion 33, the length of the wiring portion of the winding 31 associated with the attaching / detaching operation can be shortened, the loss of driving power can be reduced, and the wire cost of the wiring can be reduced. it can. In addition, it is possible to reduce problems such as interference with other parts due to sagging of wiring, and an unnecessary place being caught during assembly, and there is an effect of improving assemblability and maintainability.
上筐体３の上筐体支持面部材６０、７０の上に載置される誘導加熱コイル１１ａ、１３の巻線３１の温度を検知する温度検知手段を設け、巻線３１の温度が閾値以上となった場合、制御手段は上筐体３に配置された誘導加熱コイル１１ａ、１３の火力を低下させる制御を行うようにした。このため、巻線３１の過度な昇温を抑制して巻線３１の被覆が溶融する等の損傷を防止できる。また、上筐体支持面部材６０、７０の温度やその下方のキッチン天板２０１の温度上昇による劣化、及び使用者が接触した場合のリスクを軽減できる。また、上筐体３の誘導加熱コイル１１ａ、１３が配置される空間の冷却負荷が軽減され、冷却風の風量が少なくなることから風路断面を小さくすることができ、上筐体３の高さ寸法を小さくできることから、調理の作業性を高める効果がある。
There is provided temperature detecting means for detecting the temperature of the winding 31 of the induction heating coils 11a, 13 placed on the upper casing support surface members 60, 70 of the upper casing 3, and the temperature of the winding 31 is equal to or higher than a threshold value. In this case, the control means performs control to reduce the heating power of the induction heating coils 11a and 13 arranged in the upper housing 3. For this reason, the excessive temperature rise of the winding 31 can be suppressed and damage such as melting of the coating of the winding 31 can be prevented. In addition, it is possible to reduce the deterioration due to the temperature of the upper housing support surface members 60 and 70 and the temperature rise of the kitchen top plate 201 below it, and the risk when the user contacts. Further, the cooling load in the space where the induction heating coils 11a and 13 of the upper casing 3 are arranged is reduced, and the air volume of the upper casing 3 can be reduced because the amount of cooling air is reduced. Since the size can be reduced, there is an effect of improving the workability of cooking.
一つの加熱口６に対応して設けられた誘導加熱コイルの一部を上筐体３に配置するとともに、残りの一部を下筐体２に配置するようにした。すなわち、上筐体３に配置された巻線３１（誘導加熱コイル１１ａ、誘導加熱コイル１３の一部）と、下筐体２に配置された巻線３１（誘導加熱コイル１１ｂ〜１１ｅ、誘導加熱コイル１３の一部）とで、一つの加熱口６の加熱手段を構成した。
例えば下筐体２のみに誘導加熱コイルを配置した場合は、天板開口部２０３の寸法の制約を受けて下筐体２の寸法も制約され、加熱口６の大きさを下筐体２の寸法よりも大きくすることはできない。しかし本実施の形態によれば、上筐体３は天板開口部２０３の寸法の制約を受けずに大きくすることができるので、より大きな加熱口６を配置でき、これによって大きな調理容器を載置することができるので、高機能な誘導加熱調理器を得る効果がある。
また、複数の加熱口６を設ける場合にも、各加熱口６を大きくすることができるとともに加熱口６間の間隔を大きくできるので、調理の作業性を向上する効果がある。また、実施の形態１で示したように複数の誘導加熱コイル１１で一つの加熱口６ａの加熱手段を構成する場合には、加熱口６ａが大きい方が、誘導加熱コイル１１の実装及び冷却を容易にすることができるので、製造コストを低減できるとともに品質を高める効果がある。
A part of the induction heating coil provided corresponding to one heating port 6 is arranged in the upper casing 3 and the remaining part is arranged in the lower casing 2. That is, the winding 31 (induction heating coil 11a, a part of the induction heating coil 13) disposed in the upper housing 3 and the winding 31 (induction heating coils 11b to 11e, induction heating) disposed in the lower housing 2. A part of the coil 13) constitutes a heating means for one heating port 6.
For example, when the induction heating coil is disposed only in the lower housing 2, the size of the lower housing 2 is also constrained by the size of the top opening 203, and the size of the heating port 6 is set to the size of the lower housing 2. It cannot be larger than the dimensions. However, according to the present embodiment, the upper casing 3 can be enlarged without being restricted by the dimensions of the top plate opening 203, so that a larger heating port 6 can be arranged, thereby mounting a large cooking container. Therefore, there is an effect of obtaining a highly functional induction heating cooker.
Moreover, when providing the several heating port 6, since each heating port 6 can be enlarged and the space | interval between the heating ports 6 can be enlarged, there exists an effect which improves the workability | operativity of cooking. Moreover, when the heating means of one heating port 6a is comprised with the several induction heating coil 11 as shown in Embodiment 1, the one where the heating port 6a is larger mounts and cools the induction heating coil 11. Since it can be made easy, it is possible to reduce the manufacturing cost and improve the quality.
上筐体３に配置された誘導加熱コイル１１ａと、下筐体２に配置された誘導加熱コイル１１ｂ〜１１ｅで構成された加熱手段を有する左側の加熱口６ａにおいて、上筐体３に配置された誘導加熱コイル１１ａは、下筐体２に配置された中央の誘導加熱コイル１１ｅよりも最大火力を小さくした。このため、誘導加熱コイル１１ａの巻線３１の被覆が溶融する等の損傷を抑制することができるとともに、上筐体支持面部材６０やその下方に配置されるキッチン天板２０１の、温度上昇による劣化及び使用者が接触した場合のリスクを軽減できる。また、上筐体３の誘導加熱コイル１１が配置される空間の冷却負荷を軽減できるので、冷却風の風量を少なくすることができる。したがって、風路断面を小さくすることができ、上筐体３の高さ寸法を小さくできることから、調理の作業性を高める効果がある。
In the left heating port 6a having the heating means composed of the induction heating coil 11a arranged in the upper casing 3 and the induction heating coils 11b to 11e arranged in the lower casing 2, the heating coil 6a is arranged in the upper casing 3. The induction heating coil 11a has a maximum heating power smaller than that of the central induction heating coil 11e arranged in the lower housing 2. Therefore, damage such as melting of the coating of the winding 31 of the induction heating coil 11a can be suppressed, and the temperature rise of the upper casing support surface member 60 and the kitchen top plate 201 disposed below the upper casing support surface member 60 can be suppressed. It can reduce the risk of degradation and user contact. Moreover, since the cooling load of the space where the induction heating coil 11 of the upper housing 3 is disposed can be reduced, the amount of cooling air can be reduced. Therefore, since the cross section of the air passage can be reduced and the height dimension of the upper housing 3 can be reduced, there is an effect of improving the workability of cooking.
一つの加熱口６ａに載置される被加熱物を複数の誘導加熱コイル１１ａ〜１１ｅで加熱する際に、上筐体３に配置された誘導加熱コイル１１ａの巻線３１の温度が閾値以上となった場合には、上筐体３に配置された誘導加熱コイル１１ａの火力を低下させるが、一緒に加熱を行う他の誘導加熱コイル１１ｂ〜１１ｅのいずれか一つ以上の火力を高め、加熱口６ａのトータルの火力は維持されるように制御を行う。このため、誘導加熱コイル１１ａの巻線３１の被覆が溶融する等の損傷を防止できるとともに、上筐体支持面部材６０やその下方のキッチン天板２０１の温度上昇による劣化及び使用者が接触した場合のリスクを軽減できる。また、上筐体３の誘導加熱コイル１１ａが配置される空間の冷却負荷を軽減することができるので、冷却風の風量を少なくすることができる。したがって、風路断面を小さくすることができ、上筐体３の高さ寸法を小さくできることから、調理の作業性を高める効果があるとともに、調理時間を延長することなく時短調理が行え、調理作業性を高める効果がある。
When the object to be heated placed on one heating port 6a is heated by the plurality of induction heating coils 11a to 11e, the temperature of the winding 31 of the induction heating coil 11a arranged in the upper housing 3 is equal to or higher than a threshold value. In this case, the heating power of the induction heating coil 11a disposed in the upper housing 3 is reduced, but the heating power of any one of the other induction heating coils 11b to 11e that perform heating together is increased and heated. Control is performed so that the total heating power of the mouth 6a is maintained. For this reason, damage such as melting of the coating of the winding 31 of the induction heating coil 11a can be prevented, and deterioration of the upper casing support surface member 60 and the kitchen top plate 201 below the upper casing support surface member 60 due to temperature rise and the user contacted. The risk in case can be reduced. Moreover, since the cooling load of the space where the induction heating coil 11a of the upper housing 3 is disposed can be reduced, the amount of cooling air can be reduced. Therefore, since the cross section of the air passage can be reduced and the height dimension of the upper housing 3 can be reduced, there is an effect of improving the workability of cooking, and the cooking time can be shortened without extending the cooking time. There is an effect to improve the sex.
左側の上筐体支持面部材６０に配置された誘導加熱コイル１１ａと、下筐体２に配置された複数（４つ）の誘導加熱コイル１１ｂ〜１１ｅで一つの加熱口６ａの加熱手段を構成するとともに、上筐体３に配置された左端の誘導加熱コイル１１ａを冷却した冷却風を、下筐体２に配置された誘導加熱コイル１１ｂ〜１１ｅに導いてこれらを冷却するようにしたので、少ない冷却風で誘導加熱コイル１１ａ〜１１ｅの冷却が行える。このため、冷却ファン２５の送風能力を低くすることができ、低騒音の誘導加熱調理器を得る効果がある。
The induction heating coil 11a disposed on the left upper housing support surface member 60 and the plurality (four) of induction heating coils 11b to 11e disposed on the lower housing 2 constitute a heating means for one heating port 6a. Since the cooling air that has cooled the leftmost induction heating coil 11a arranged in the upper housing 3 is guided to the induction heating coils 11b to 11e arranged in the lower housing 2 to cool them. The induction heating coils 11a to 11e can be cooled with a small amount of cooling air. For this reason, the ventilation capacity of the cooling fan 25 can be lowered, and there is an effect of obtaining a low noise induction heating cooker.
実施の形態２．
図２、図６、図７、図１９〜図３０を用いて、実施の形態２を説明する。実施の形態１とは誘導加熱コイルの数と配置、及び冷却構造など一部の構造が異なり、以下では実施の形態１と異なる部分を中心に説明する。
Embodiment 2. FIG.
The second embodiment will be described with reference to FIGS. 2, 6, 7, and 19 to 30. The first embodiment is different from the first embodiment in the number and arrangement of induction heating coils and a part of the structure such as a cooling structure.
図２は、実施の形態２の誘導加熱調理器の本体筐体１が据え付けられるキッチンキャビネット２００の斜視図である。本実施の形態２の誘導加熱調理器の本体筐体１が据え付けられるキッチンキャビネット２００は、実施の形態１と同様であり、また、据え付け状態の態様も実施の形態１で示した図１と同様である。
FIG. 2 is a perspective view of a kitchen cabinet 200 in which the main body casing 1 of the induction heating cooker according to the second embodiment is installed. The kitchen cabinet 200 in which the main body casing 1 of the induction heating cooker of the second embodiment is installed is the same as that of the first embodiment, and the state of the installed state is the same as that of FIG. 1 shown in the first embodiment. It is.
図６、図７に示す基板ケースユニット２４は、実施の形態１と同様である。
The substrate case unit 24 shown in FIGS. 6 and 7 is the same as that of the first embodiment.
図１９は、実施の形態２に係る誘導加熱調理器の本体筐体１の斜視図である。本実施の形態２では、加熱口６ａ及び加熱口６ｃの大きさ、配置、及び形状が実施の形態１と異なるが、外観上のその他の構成は、実施の形態１と同様である。
FIG. 19 is a perspective view of main body housing 1 of the induction heating cooker according to the second embodiment. In the second embodiment, the size, arrangement, and shape of the heating port 6a and the heating port 6c are different from those in the first embodiment, but other configurations in appearance are the same as those in the first embodiment.
図２０は、実施の形態２に係る誘導加熱調理器の本体筐体１から通気口カバー８を外し、トッププレート７を透視した斜視図である。
筐体吸気口９及び筐体排気口１０が設けられているのは、実施の形態１と同様である。
FIG. 20 is a perspective view of the top plate 7 seen through with the vent cover 8 removed from the main body housing 1 of the induction heating cooker according to the second embodiment.
The housing inlet 9 and the housing exhaust 10 are provided in the same manner as in the first embodiment.
左側の加熱口６ａ（図１９参照）の下方には、中心が略同一となるように配置された２つの誘導加熱コイル１１ａ、１１ｂ（本実施の形態において誘導加熱コイル１１と総称する場合がある）が配置され、これら２つの誘導加熱コイル１１ａ、１１ｂで一つの加熱口６ａの加熱手段を構成している。本実施の形態では、外側の誘導加熱コイル１１ａは環状に形成され、内側の誘導加熱コイル１１ｂは二重環状に形成されている。詳細は後述するが、外側の誘導加熱コイル１１ａは、左側の上筐体支持面部材６０の上に配置され、内側の誘導加熱コイル１１ｂは、下筐体２に配置されている。
Below the left heating port 6a (see FIG. 19), there are two induction heating coils 11a and 11b (generally referred to as induction heating coil 11 in the present embodiment) arranged so that their centers are substantially the same. The two induction heating coils 11a and 11b constitute a heating means for one heating port 6a. In the present embodiment, the outer induction heating coil 11a is formed in a ring shape, and the inner induction heating coil 11b is formed in a double ring shape. As will be described in detail later, the outer induction heating coil 11 a is disposed on the left upper casing support surface member 60, and the inner induction heating coil 11 b is disposed in the lower casing 2.
２個の誘導加熱コイル１１ａ、１１ｂは、被加熱物である調理容器の大きさに応じて、いずれか又は両方が制御手段によって駆動される。調理容器が誘導加熱コイル１１ａの外形よりも概ね大きい場合には、外側に配置された誘導加熱コイル１１ａと内側に配置された誘導加熱コイル１１ｂの両方で加熱を行い、調理容器が小さい場合には内側に配置された誘導加熱コイル１１ｂのみで加熱を行う。また、外側と内側側の両方の誘導加熱コイル１１で加熱を行う場合は、制御手段により内側と外側の火力を連続的に切り替えることで、調理容器内に対流を形成することができ、これにより、煮込み状態を均一に近づけて良好な調理効果を得ることができる。最大火力は、内側の誘導加熱コイル１１ｂよりも外側の誘導加熱コイル１１ａの方が小さく、これによって外側の誘導加熱コイル１１ａの自己発熱を少なくし、誘導加熱コイル１１ａが配置される上筐体３の空間の冷却負荷を軽減している。内側と外側の誘導加熱コイル１１の駆動周波数（巻線に流れる高周波電流の周波数）は、両者の差分が４ｋＨｚ以上離れた周波数とすることで、干渉音を使用者が感知しにくい音域とすることができ、使用者の作業環境を良好にしている。
One or both of the two induction heating coils 11a and 11b are driven by the control means in accordance with the size of the cooking container that is the object to be heated. When the cooking container is generally larger than the outer shape of the induction heating coil 11a, the heating is performed by both the induction heating coil 11a arranged outside and the induction heating coil 11b arranged inside, and when the cooking container is small Heating is performed only with the induction heating coil 11b arranged inside. Moreover, when heating with both the induction heating coils 11 on the outer side and the inner side, convection can be formed in the cooking container by continuously switching the heating power on the inner side and the outer side by the control means. A good cooking effect can be obtained by bringing the stewed state close to uniformity. The maximum heating power is smaller in the outer induction heating coil 11a than in the inner induction heating coil 11b, thereby reducing the self-heating of the outer induction heating coil 11a, and the upper casing 3 in which the induction heating coil 11a is arranged. The cooling load of the space is reduced. The driving frequency of the inner and outer induction heating coils 11 (frequency of the high-frequency current flowing in the winding) is set to a frequency range in which the difference between the two is 4 kHz or more, so that the interference sound is difficult to be detected by the user. The work environment of the user is improved.
また、外側の誘導加熱コイル１１ａの巻線３１には、温度検知手段（図示せず）が取り付けられており、制御手段は巻線３１の温度が閾値以上となった場合、外側の誘導加熱コイル１１ａの火力を低下させる、又は加熱を停止させる。
このとき、外側の誘導加熱コイル１１ａの火力は低下するが、制御手段は、内側の誘導加熱コイル１１ｂの火力を高め、外側の誘導加熱コイル１１ａと内側の誘導加熱コイル１１ｂの合計の火力が維持されるように制御される。
Further, a temperature detection means (not shown) is attached to the winding 31 of the outer induction heating coil 11a, and the control means, when the temperature of the winding 31 becomes equal to or higher than a threshold value, the outer induction heating coil. Decrease the heating power of 11a or stop heating.
At this time, although the heating power of the outer induction heating coil 11a decreases, the control means increases the heating power of the inner induction heating coil 11b, and the total heating power of the outer induction heating coil 11a and the inner induction heating coil 11b is maintained. To be controlled.
中間の加熱口６ｂ（図１９参照）の下方の誘導加熱コイル１２については、実施の形態１と同様である。
The induction heating coil 12 below the intermediate heating port 6b (see FIG. 19) is the same as in the first embodiment.
右側の加熱口６ｃ（図１９参照）の下方には、４つの誘導加熱コイル１３ａ、１３ｂ、１３ｃ、１３ｄ（本実施の形態において誘導加熱コイル１３と総称する場合がある）が設けられている。誘導加熱コイル１３ａ〜１３ｄは、巻線３１を楕円形状に巻き回して構成され、自身の長手方向と本体筐体１の前後方向とが一致する向きで、互いに中心位置を異ならせて配置されている。これら複数の誘導加熱コイル１３で、一つの加熱口６ｃに載置される被加熱物の加熱手段を構成している。右端の誘導加熱コイル１３ａは、上筐体支持面部材７０の上に配置され、他の３つの誘導加熱コイル１３ｂ、１３ｃ、１３ｄは下筐体２に配置されている。
Below the right heating port 6c (see FIG. 19), four induction heating coils 13a, 13b, 13c, and 13d (sometimes collectively referred to as induction heating coil 13 in the present embodiment) are provided. The induction heating coils 13a to 13d are configured by winding the winding 31 in an elliptical shape, and are arranged with their center positions different from each other in a direction in which the longitudinal direction of the coil 31a and the longitudinal direction of the main body housing 1 coincide. Yes. The plurality of induction heating coils 13 constitute a heating means for an object to be heated placed on one heating port 6c. The induction heating coil 13a at the right end is disposed on the upper casing support surface member 70, and the other three induction heating coils 13b, 13c, and 13d are disposed in the lower casing 2.
４つの誘導加熱コイル１３ａ〜１３ｄは、被加熱物である調理容器の大きさ及び配置に応じて、いずれか一つ以上が制御手段によって駆動される。具体的には、上方に載置された調理容器と上面視で概ね重なる位置に配置された誘導加熱コイル１３が駆動され、上方に調理容器が載置されていない誘導加熱コイル１３は駆動されない。このように被加熱物の加熱に寄与する誘導加熱コイル１３を選択的に駆動することで、不要な電力消費を抑制している。また、加熱口６ｃの範囲に載置された調理容器の下にある誘導加熱コイル１３が駆動されるので、加熱口６ｃの範囲内に載置された調理容器であれば誘導加熱コイル１３で加熱されない領域も生じず、加熱ムラが抑制されて良好な調理効果を得ることができる。
Any one or more of the four induction heating coils 13a to 13d is driven by the control means in accordance with the size and arrangement of the cooking container that is the object to be heated. Specifically, the induction heating coil 13 disposed at a position that substantially overlaps with the cooking container placed above is viewed from above, and the induction heating coil 13 that does not have the cooking container placed thereon is not driven. In this way, unnecessary power consumption is suppressed by selectively driving the induction heating coil 13 that contributes to heating of the object to be heated. Moreover, since the induction heating coil 13 under the cooking container placed in the range of the heating port 6c is driven, the induction heating coil 13 heats the cooking container placed in the range of the heating port 6c. A region that is not formed does not occur, and uneven heating is suppressed, so that a good cooking effect can be obtained.
右端の誘導加熱コイル１３ａと他の３つの誘導加熱コイル１３ｂ〜１３ｄの駆動周波数は、同一の駆動周波数となるように制御手段が制御する。このようにすることで、干渉音を生じることなく複数の誘導加熱コイル１３を駆動することができる。
The control means controls the drive frequencies of the induction heating coil 13a at the right end and the other three induction heating coils 13b to 13d to be the same drive frequency. By doing in this way, the several induction heating coil 13 can be driven, without producing an interference sound.
右端の誘導加熱コイル１３ａの巻線３１には、上面視でキッチン天板２０１と重なる部分に、温度検知手段（図示せず）が取り付けられており、制御手段は、巻線３１の温度が閾値以上となった場合、右端の誘導加熱コイル１３ａの火力を低下させる、又は、加熱を停止するように駆動手段を制御する。このとき、右端の誘導加熱コイル１３ａの火力は低下するが、制御手段は、同時に加熱する他の誘導加熱コイル１３ｂ、１３ｃ、１３ｄうちいずれか一つ以上の火力を増やし、加熱口６ｃの合計の火力は誘導加熱コイル１３ａの火力低下前と同一となるように制御する。このようにすることで、調理時間が延長されることを抑制している。
The winding 31 of the induction heating coil 13a at the right end is provided with a temperature detecting means (not shown) at a portion overlapping the kitchen top plate 201 in a top view. When it becomes above, a drive means is controlled so that the heating power of the induction heating coil 13a of a right end may be reduced, or a heating is stopped. At this time, although the heating power of the induction heating coil 13a at the right end decreases, the control means increases any one or more of the other induction heating coils 13b, 13c, 13d to be heated at the same time, and the total heating port 6c The heating power is controlled to be the same as that before the heating power of the induction heating coil 13a is lowered. By doing in this way, it is suppressing that cooking time is extended.
誘導加熱コイル１１、１２、１３の手前側には、左側の誘導加熱コイル１１と右側の誘導加熱コイル１３の手前側とを結ぶようにして、上筐体３の幅方向に延びる冷却風路８０が配置されている。冷却風路８０の形状は実施の形態１とは異なるが、冷却風路８０の左端に左吹出口８２が設けられるとともに右端に右吹出口８３が設けられ、また、後述する図２１に示すように、冷却風路８０の一部は左側の誘導加熱コイル１１の下側にも配置される点は、実施の形態１と同様である。
On the front side of the induction heating coils 11, 12, and 13, a cooling air passage 80 extending in the width direction of the upper housing 3 so as to connect the left induction heating coil 11 and the front side of the right induction heating coil 13. Is arranged. Although the shape of the cooling air passage 80 is different from that of the first embodiment, a left air outlet 82 is provided at the left end of the cooling air passage 80 and a right air outlet 83 is provided at the right end, and as shown in FIG. Moreover, the point that a part of the cooling air passage 80 is also arranged below the left induction heating coil 11 is the same as in the first embodiment.
左側の上筐体支持面部材６０及び右側の上筐体支持面部材７０は、実施の形態１とは具体的な形状は異なるが、誘導加熱コイル１１と誘導加熱コイル１３の少なくとも一部が載置されるという点は、実施の形態１と同様である。また、左側の上筐体支持面部材６０には、誘導加熱コイル１１の手前側に流入口６３が形成され、右側の上筐体支持面部材７０には、誘導加熱コイル１３ａの手前側に流入口７３が形成されている。冷却風路８０の左吹出口８２は流入口６３に概ね気密に接続され、右吹出口８３は流入口７３に概ね気密に接続される。左吹出口８２と流入口６３、及び右吹出口８３と流入口７３との隙間には、気密性のあるクッション材等を挟むことで、両者の気密性をより高めることができ、冷却風路８０から送られる冷却風による誘導加熱コイル１１、１３の冷却効率を高めることができる。
The left upper housing support surface member 60 and the right upper housing support surface member 70 are different in shape from the first embodiment, but at least a part of the induction heating coil 11 and the induction heating coil 13 is mounted. This is the same as in the first embodiment. The left upper casing support surface member 60 has an inlet 63 formed on the front side of the induction heating coil 11, and the right upper casing support surface member 70 flows on the front side of the induction heating coil 13a. An inlet 73 is formed. The left outlet 82 of the cooling air passage 80 is connected to the inlet 63 in a generally airtight manner, and the right outlet 83 is connected to the inlet 73 in a substantially airtight manner. An airtight cushioning material or the like is sandwiched in the gap between the left outlet 82 and the inlet 63 and between the right outlet 83 and the inlet 73, so that the airtightness of both can be further improved, and the cooling air passage The cooling efficiency of the induction heating coils 11 and 13 by the cooling air sent from 80 can be improved.
下筐体２の内部でかつ左側の誘導加熱コイル１１の後方には、排気風路２６が設けられている。排気風路２６は、筐体排気口１０に連通する風路を形成しており、本体筐体１内の空気を本体筐体１の外へ排出する風路となっている。
An exhaust air passage 26 is provided inside the lower housing 2 and behind the left induction heating coil 11. The exhaust air passage 26 forms an air passage communicating with the housing exhaust port 10, and serves as an air passage for discharging the air inside the main body housing 1 to the outside of the main body housing 1.
図２１は、実施の形態２に係る本体筐体１の上筐体３と下筐体２の分解斜視図である。
上筐体３の上筐体枠５０と下筐体２との組立に係る構成は、実施の形態１と同様である。すなわち、上筐体３の上筐体枠５０の前側の辺に上筐体フランジ部５１が形成されており（図２９参照）、図５に示したように下筐体２の前側に設けられた下筐体係止部３３を上筐体フランジ部５１の上の凹部５２に挿入して係止するとともに、上筐体枠５０の後部の上筐体取付穴５５に上方から挿入された締結部材４０の先端を、下筐体締結部３４に締結することで、下筐体２と上筐体３とが組み立てられる。
FIG. 21 is an exploded perspective view of the upper casing 3 and the lower casing 2 of the main casing 1 according to the second embodiment.
The configuration relating to the assembly of the upper housing frame 50 and the lower housing 2 of the upper housing 3 is the same as that of the first embodiment. That is, an upper housing flange portion 51 is formed on the front side of the upper housing frame 50 of the upper housing 3 (see FIG. 29), and is provided on the front side of the lower housing 2 as shown in FIG. The lower housing locking portion 33 is inserted into the recessed portion 52 on the upper housing flange portion 51 to be locked, and the lower housing locking portion 33 is inserted into the upper housing mounting hole 55 on the rear portion of the upper housing frame 50 from above. The lower housing 2 and the upper housing 3 are assembled by fastening the tip of the member 40 to the lower housing fastening portion 34.
上筐体支持面部材６０、７０は、上筐体３及びトッププレート７と隙間少なく概ね気密に取り付けられ、冷却風の出入り口となる開口部を除いては、一定の気密性を有する空間を自身の上方に形成しているという点は、実施の形態１と同様である。
The upper casing support surface members 60 and 70 are attached to the upper casing 3 and the top plate 7 in a generally airtight manner with little gap, and have a certain airtight space except for an opening serving as a cooling air inlet / outlet. The point that it is formed above is the same as that of the first embodiment.
右側の上筐体支持面部材７０には、右側の加熱口６ｃの右端の誘導加熱コイル１３ａが載置されており、誘導加熱コイル１３ａの手間側に流入口７３、誘導加熱コイル１３ａの後方に流出口７４が設けられている。
The right upper casing support surface member 70 is mounted with the induction heating coil 13a at the right end of the right heating port 6c. The inlet 73 is disposed on the laborious side of the induction heating coil 13a, and the induction heating coil 13a is disposed behind the induction heating coil 13a. An outlet 74 is provided.
右側の上筐体支持面部材７０の右側の側壁７２（誘導加熱コイル１３ａと対向する側壁７２）は、流入口７３側に対して流出口７４側の方が誘導加熱コイル１３ａに近づくようにして奥行き方向に傾いており、上筐体支持面部材７０の左右方向の幅は、流入口７３から流出口７４に向かうにしたがって狭くなっている。このため、流入口６３から上筐体支持面部材７０に流入した冷却風は、右側の側壁７２に導かれて、誘導加熱コイル１３ａの奥側の左端近傍を通過し、冷却風は迂回することなく誘導加熱コイル１３ａのより広い範囲に接触して冷却することができる。
また、冷却風による冷却効果は、冷却風が最初に当たる端部の熱伝達係数は高く、冷却風が最初に当たる端部以降における熱伝達係数は前記端部と比べて低くなる。本実施の形態では、上筐体支持面部材７０の右側の側壁７２を、冷却風が誘導加熱コイル１３ａの奥側の左端近傍を通過するように傾斜させたので、左奥に向かう冷却風の流れを形成することができる。このため、巻線３１の右側の前側端から後側端までを、冷却風が最初に当たる端部とすることができ、巻線３１の冷却効率を高めている。
The right side wall 72 (the side wall 72 facing the induction heating coil 13a) of the right upper casing support surface member 70 is arranged such that the outlet 74 side is closer to the induction heating coil 13a than the inlet 73 side. It is inclined in the depth direction, and the width in the left-right direction of the upper housing support surface member 70 becomes narrower from the inlet 73 toward the outlet 74. For this reason, the cooling air flowing into the upper housing support surface member 70 from the inflow port 63 is guided to the right side wall 72 and passes near the left end on the far side of the induction heating coil 13a, so that the cooling air bypasses. Without contact, it can cool by contacting a wider range of the induction heating coil 13a.
The cooling effect by the cooling air is such that the heat transfer coefficient at the end where the cooling air first hits is high, and the heat transfer coefficient after the end where the cooling air hits first becomes lower than that at the end. In the present embodiment, the right side wall 72 of the upper housing support surface member 70 is inclined so that the cooling air passes near the left end on the back side of the induction heating coil 13a. A flow can be formed. For this reason, the portion from the front side end to the rear side end on the right side of the winding 31 can be an end portion where the cooling air first hits, and the cooling efficiency of the winding 31 is increased.
前述の実施の形態１の上筐体支持面部材６０のコイル載置面６１は、下筐体２と上筐体３とが組み合わされた状態では、上面視において下筐体２と重ならないように配置される部分のみで構成されていた。一方、本実施の形態の左側の上筐体支持面部材６０は、実施の形態１とほぼ同様の位置に配置されるコイル載置面６１と、コイル載置面６１の右側に設けられ上面視で下筐体２と重なる位置に配置される中央側底面６７とを有する。コイル載置面６１には、コイルベース１４によって下方を支持された外側の誘導加熱コイル１１ａの一部が載置され、中央側底面６７には、外側の誘導加熱コイル１１ａの残りの部分が載置される。中央側底面６７の右側には、上筐体３の上筐体枠５０に前後に掛け渡される架設部６８が設けられている。上筐体支持面部材６０は、コイル載置面６１及び架設部６８によって、角枠状の上筐体枠５０に対して前後に掛け渡されて係合されている。このようにコイル載置面６１と架設部６８の左右二カ所で上筐体支持面部材６０を上筐体３の上筐体枠５０に係合させることで、上筐体３の構造強度を高めている。
The coil mounting surface 61 of the upper housing support surface member 60 of the first embodiment described above does not overlap the lower housing 2 in a top view when the lower housing 2 and the upper housing 3 are combined. It consisted only of the part arranged in. On the other hand, the upper housing support surface member 60 on the left side of the present embodiment is provided with a coil mounting surface 61 disposed at substantially the same position as in the first embodiment, and provided on the right side of the coil mounting surface 61 as viewed from above. And a bottom face 67 on the center side disposed at a position overlapping the lower casing 2. A part of the outer induction heating coil 11 a supported below by the coil base 14 is placed on the coil placement surface 61, and the remaining part of the outer induction heating coil 11 a is placed on the center side bottom surface 67. Placed. On the right side of the center-side bottom surface 67, an erection part 68 is provided that spans the upper casing frame 50 of the upper casing 3 back and forth. The upper housing support surface member 60 is stretched around and engaged with the upper housing frame 50 having a rectangular frame shape by the coil mounting surface 61 and the erection portion 68. As described above, the upper casing support surface member 60 is engaged with the upper casing frame 50 of the upper casing 3 at two positions on the left and right sides of the coil mounting surface 61 and the erection portion 68, thereby increasing the structural strength of the upper casing 3. It is increasing.
上筐体支持面部材６０の左側のコイル載置面６１は、本体筐体１がキッチンキャビネット２００に組み付けられた状態において、上面視でキッチン天板２０１と重なる位置に配置され、このコイル載置面６１の上に誘導加熱コイル１１ａの一部が載置される。上筐体支持面部材６０のコイル載置面６１の前側に流入口６３が形成され、奥側に流出口６４が形成されている。流入口６３には、図２０で示した冷却風路８０の左側の左吹出口８２が接続される。
The coil mounting surface 61 on the left side of the upper housing support surface member 60 is disposed at a position overlapping the kitchen top plate 201 in a top view when the main body housing 1 is assembled to the kitchen cabinet 200. A part of the induction heating coil 11 a is placed on the surface 61. An inflow port 63 is formed on the front side of the coil mounting surface 61 of the upper housing support surface member 60, and an outflow port 64 is formed on the back side. A left air outlet 82 on the left side of the cooling air passage 80 shown in FIG. 20 is connected to the inflow port 63.
中央側底面６７は、本体筐体１がキッチンキャビネット２００に組み付けられた状態において、上面視で天板開口部２０３と重なる位置に配置される。中央側底面６７の底面は、コイル載置面６１の底面と比べて低く、中央側底面６７の上方に形成される誘導加熱コイル１１の配置空間の高さ寸法は、コイル載置面６１の上方に形成される空間の高さ寸法よりも大きくなっている。中央側底面６７の概ね中央には、内側の誘導加熱コイル１１ｂ及びこれを支持するコイルベース１５が挿入されるコイル挿入口６７ａが開口している。
The center-side bottom surface 67 is disposed at a position overlapping the top plate opening 203 in a top view when the main body housing 1 is assembled to the kitchen cabinet 200. The bottom surface of the center side bottom surface 67 is lower than the bottom surface of the coil placement surface 61, and the height dimension of the arrangement space of the induction heating coil 11 formed above the center side bottom surface 67 is above the coil placement surface 61. It is larger than the height dimension of the space formed in. A coil insertion port 67a into which the inner induction heating coil 11b and the coil base 15 that supports the inner induction heating coil 11b are inserted is opened substantially at the center of the center-side bottom surface 67.
上筐体支持面部材６０のコイル載置面６１の側壁６２は、誘導加熱コイル１１ａの左端において誘導加熱コイル１１ａに最も近接し、誘導加熱コイル１１ａの左端よりも手前側及び奥側においては誘導加熱コイル１１ａから離れるように湾曲している。すなわち、上筐体支持面部材６０のコイル載置面６１の側壁６２は、手前側から中央側に向かって誘導加熱コイル１１ａに近づき、中央側から奥側に向かって誘導加熱コイル１１ａから離れる形状である。このように、コイル載置面６１の側壁６２を誘導加熱コイル１１ａの端部に近接させる形状とすることで、冷却風を迂回させることなく誘導加熱コイル１１ａに接触させ、誘導加熱コイル１１ａの冷却効率を高めている。
The side wall 62 of the coil mounting surface 61 of the upper housing support surface member 60 is closest to the induction heating coil 11a at the left end of the induction heating coil 11a, and is induction on the near side and the back side of the left end of the induction heating coil 11a. It is curved away from the heating coil 11a. That is, the side wall 62 of the coil mounting surface 61 of the upper housing support surface member 60 is shaped to approach the induction heating coil 11a from the near side toward the center side and away from the induction heating coil 11a from the center side toward the back side. It is. Thus, by making the side wall 62 of the coil mounting surface 61 close to the end of the induction heating coil 11a, it is brought into contact with the induction heating coil 11a without detouring the cooling air, thereby cooling the induction heating coil 11a. Increases efficiency.
上筐体支持面部材６０は、アルミ板等の非磁性金属板で形成されており、上筐体支持面部材６０の外側壁面が防磁板として機能して漏れ磁束を抑制している。本実施の形態では、誘導加熱コイル１１ａの一部が配置される中央側底面６７の左側と右側にそれぞれ、コイル載置面６１と架設部６８とが設けられているため、誘導加熱コイル１１の右側と左側ともに、防磁板を配置する必要がなく、部品コスト及び組立コストを安価にする効果がある。
The upper housing support surface member 60 is formed of a nonmagnetic metal plate such as an aluminum plate, and the outer wall surface of the upper housing support surface member 60 functions as a magnetic shielding plate to suppress leakage magnetic flux. In the present embodiment, the coil mounting surface 61 and the erection portion 68 are provided on the left side and the right side of the center side bottom surface 67 where a part of the induction heating coil 11a is disposed. There is no need to arrange a magnetic shield on both the right side and the left side, which has the effect of reducing the component cost and assembly cost.
下筐体２の前側に取り付けられた冷却風路８０の左奥には、左側の加熱口６ａの加熱手段を構成する内側の誘導加熱コイル１１ｂが配置されている。誘導加熱コイル１１ｂは、コイルベース１５によって下方を支持されている。コイルベース１５の外周部の数カ所には、外方に突出する支持部１５ａが形成されており、この支持部１５ａの下面に弾性体２９が取り付けられている。コイルベース１５は、支持部１５ａを介して弾性体２９によって下方を支持されるとともに、上方に向かって付勢されている。
An induction heating coil 11b on the inner side that constitutes the heating means of the left heating port 6a is disposed at the left rear side of the cooling air passage 80 attached to the front side of the lower housing 2. The induction heating coil 11 b is supported below by the coil base 15. Support portions 15a projecting outward are formed at several locations on the outer periphery of the coil base 15, and an elastic body 29 is attached to the lower surface of the support portion 15a. The coil base 15 is supported downward by the elastic body 29 via the support portion 15a and is urged upward.
支持部１５ａの上面は、上筐体支持面部材６０を支持する支持面として機能する。上筐体３と下筐体２とが組み立てられた状態において、コイルベース１５に設けられた支持部１５ａで上筐体支持面部材６０を支持することで、上筐体支持面部材６０に上下方向に加えられる外力に対する強度を高め、上筐体支持面部材６０の輸送及び据付の際の衝撃による変形及び破損を抑制している。
The upper surface of the support portion 15 a functions as a support surface that supports the upper housing support surface member 60. In the state where the upper housing 3 and the lower housing 2 are assembled, the upper housing support surface member 60 is supported by the support portion 15a provided on the coil base 15 so that the upper housing support surface member 60 is moved up and down. The strength against external force applied in the direction is increased, and deformation and breakage due to an impact during transportation and installation of the upper housing support surface member 60 are suppressed.
冷却風路８０の一部は、誘導加熱コイル１１ａの一部及び誘導加熱コイル１１ｂの下側を覆っている。冷却風路８０には、外側の誘導加熱コイル１１ａが載置される位置の下方に、複数のコイル下吹出口８４、８５が設けられている。コイル下吹出口８４、８５は、いずれも、冷却風路８０から送られる冷却風が通過する開口であるが、コイル下吹出口８４は冷却風路８０の上面に形成された開口であり、コイル下吹出口８５の周囲には冷却風路８０の上面に延設された筒状のダクト部が設けられている。
A part of the cooling air passage 80 covers a part of the induction heating coil 11a and the lower side of the induction heating coil 11b. The cooling air passage 80 is provided with a plurality of coil lower outlets 84 and 85 below the position where the outer induction heating coil 11a is placed. The coil lower air outlets 84 and 85 are both openings through which the cooling air sent from the cooling air passage 80 passes, but the coil lower air outlet 84 is an opening formed on the upper surface of the cooling air passage 80, and the coil Around the lower outlet 85, a cylindrical duct portion extending on the upper surface of the cooling air passage 80 is provided.
下筐体２の上面開口の下筐体締結部３４よりも下筐体係止部３３に近い位置に、左右の誘導加熱コイル１１、１３の巻線３１を接続するための端子台２８が設けられている。誘導加熱コイル１１、１３を構成する巻線３１は、それぞれ、端子台２８に接続され、端子台２８を介して基板ケースユニット２４内の駆動回路及び制御回路と接続される。
A terminal block 28 for connecting the windings 31 of the left and right induction heating coils 11 and 13 is provided at a position closer to the lower housing locking portion 33 than the lower housing fastening portion 34 of the upper opening of the lower housing 2. It has been. The windings 31 constituting the induction heating coils 11 and 13 are each connected to the terminal block 28 and are connected to the drive circuit and the control circuit in the substrate case unit 24 via the terminal block 28.
また、前述の実施の形態１では、右側の加熱口６ｃの誘導加熱コイル１３の下には防磁板を特には設けていなかったが、本実施の形態では、誘導加熱コイル１３ａの下に防磁板３８を設けるとともに、誘導加熱コイル１３ｂ〜１３ｄの下側に防磁板３９を設けている。
In the first embodiment described above, no magnetic shield is provided below the induction heating coil 13 of the right heating port 6c. However, in the present embodiment, the magnetic shield is provided below the induction heating coil 13a. 38, and a magnetic shield 39 is provided below the induction heating coils 13b to 13d.
図２２は、実施の形態２に係る下筐体２の分解斜視図である。
下筐体２の調理室３７の左側空間に基板ケースユニット２４が配置されているのは実施の形態１と同様である。
FIG. 22 is an exploded perspective view of the lower housing 2 according to the second embodiment.
The substrate case unit 24 is arranged in the left space of the cooking chamber 37 of the lower housing 2 as in the first embodiment.
基板ケースユニット２４の上面には、実施の形態１と同様に、前側と奥側の二カ所に前側排気口２４ｂ、後側排気口２４ｃが形成されており、前側排気口２４ｂは冷却風路８０の底面に形成された冷却風路流入口８１に接続され、後側排気口２４ｃは、右冷却風路９０の底面に形成された右冷却風路流入口９１に接続される。
また、調理室３７の奥に排気風路２６が配置されている。
Similar to the first embodiment, a front exhaust port 24b and a rear exhaust port 24c are formed on the upper surface of the substrate case unit 24 at the front side and the back side. The rear exhaust port 24 c is connected to a right cooling air passage inlet 91 formed on the bottom surface of the right cooling air passage 90.
Further, an exhaust air passage 26 is disposed in the back of the cooking chamber 37.
冷却風路８０の底面に形成された冷却風路流入口８１から冷却風路８０内に冷却風が流入し、冷却風路８０に流入した冷却風は、右吹出口８３が設けられた右側と左側とに分流する。左側に流れた冷却風はさらに、左吹出口８２の方向と、誘導加熱コイル１１の下方に設けられたコイル下吹出口８４、８５の方向とに分流する。
冷却風路８０に設けられたコイル下吹出口８４の一部は、上面視において外側の誘導加熱コイル１１ａ（図２２には図示せず）と重なる位置に設けられており、コイル下吹出口８４の一部は内側の誘導加熱コイル１１ｂと重なる位置に設けられている。また、ダクトを有するコイル下吹出口８５の一部は、外側の誘導加熱コイル１１ａ（図２２には図示せず）の下方に設けられており、誘導加熱コイル１１ａを冷却する冷却風を吹き出す。また、コイル下吹出口８５の一部は、上面視において誘導加熱コイル１１ａと重ならない位置にも設けられている。
Cooling air flows into the cooling air passage 80 from the cooling air passage inlet 81 formed on the bottom surface of the cooling air passage 80, and the cooling air that has flowed into the cooling air passage 80 passes through the right side where the right outlet 83 is provided. Shunt to the left. The cooling air that has flowed to the left is further divided into the direction of the left outlet 82 and the direction of the coil lower outlets 84 and 85 provided below the induction heating coil 11.
A part of the coil lower outlet 84 provided in the cooling air passage 80 is provided at a position overlapping the outer induction heating coil 11a (not shown in FIG. 22) when viewed from above, and the coil lower outlet 84 is provided. Is provided at a position overlapping the inner induction heating coil 11b. A part of the coil lower outlet 85 having a duct is provided below the outer induction heating coil 11a (not shown in FIG. 22), and blows out cooling air for cooling the induction heating coil 11a. Further, a part of the coil lower outlet 85 is also provided at a position where it does not overlap with the induction heating coil 11a in a top view.
内側の誘導加熱コイル１１ｂに向けて吹き出された冷却風は、内側の誘導加熱コイル１１ｂの巻線３１の底面を衝突噴流熱伝達で冷却するとともに、コイルベース１５に底面を露出して保持される高透磁率磁性体１８（図２３、図２４参照）の底面を冷却しながらコイルベース１５の高透磁率磁性体１８の保持部（図示せず）の隙間を通って、下方から上方へ流れる。その後冷却風は、巻線３１の上面とトッププレート７の下面との間の空間を通って巻線３１の上面を冷却した後、左側の上筐体支持面部材６０の上方の誘導加熱コイル１１ａの一部が配置された空間に流入して、外側の誘導加熱コイル１１ａを冷却する。その後冷却風は、左側の上筐体支持面部材６０の流出口６４から上筐体支持面部材６０の外へ流出し、排気風路２６に向かって流れる。
The cooling air blown toward the inner induction heating coil 11b cools the bottom surface of the winding 31 of the inner induction heating coil 11b by collision jet heat transfer, and is also held with the bottom surface exposed to the coil base 15. While cooling the bottom surface of the high-permeability magnetic body 18 (see FIGS. 23 and 24), it flows from the lower side to the upper side through a gap in the holding portion (not shown) of the high-permeability magnetic body 18 of the coil base 15. Thereafter, the cooling air passes through the space between the upper surface of the winding 31 and the lower surface of the top plate 7 to cool the upper surface of the winding 31, and then the induction heating coil 11 a above the left upper casing support surface member 60. Flows into the space in which a part of the outer induction heating coil 11a is cooled. Thereafter, the cooling air flows out of the upper housing support surface member 60 from the outlet 64 of the left upper housing support surface member 60 and flows toward the exhaust air passage 26.
右冷却風路９０は、基板ケースユニット２４の奥側の後側排気口２４ｃから送られる冷却風を、自身の上方に配置される誘導加熱コイル１３ｂ、１３ｃ、１３ｄ等の部材に供給する。右冷却風路９０の底面には、基板ケースユニット２４の奥側の後側排気口２４ｃに接続される右冷却風路流入口９１が形成されており、右冷却風路９０の上面には、右冷却風路吹出口９２が形成されている。前述の実施の形態１では、右冷却風路吹出口９２は一つであったが、本実施の形態では複数の右冷却風路吹出口９２が形成されている。
The right cooling air passage 90 supplies the cooling air sent from the rear exhaust port 24c on the back side of the substrate case unit 24 to the members such as the induction heating coils 13b, 13c, and 13d disposed above the right cooling air passage 90. On the bottom surface of the right cooling air passage 90, a right cooling air passage inlet 91 connected to the rear exhaust port 24c on the back side of the substrate case unit 24 is formed, and on the upper surface of the right cooling air passage 90, A right cooling air passage outlet 92 is formed. In the first embodiment, the number of right cooling air passage outlets 92 is one. However, in the present embodiment, a plurality of right cooling air passage outlets 92 are formed.
右冷却風路流入口９１から右冷却風路９０内に流入した冷却風は、複数の右冷却風路吹出口９２から噴流として吹き出され、下筐体２に配置される右側の誘導加熱コイル１３ｂ、１３ｃ、１３ｄの巻線３１の底面を衝突噴流熱伝達で冷却するとともに、コイルベース１７に底面を露出して保持される高透磁率磁性体１９の底面を冷却しながらコイルベース１７の高透磁率磁性体１９の保持部の隙間を通って下方から上方へ流れる。その後冷却風は、巻線３１の上面とトッププレート７の下面の空間を通って巻線３１の上面を冷却した後、右側の上筐体支持面部材７０の誘導加熱コイル１３ａ（図２１参照）が配置された空間に流入して、右端の誘導加熱コイル１３ａを冷却し、右側の上筐体支持面部材７０の流出口７４から上筐体支持面部材７０の外へ流出して、排気風路２６に向かって流れる。
The cooling air that has flowed into the right cooling air passage 90 from the right cooling air passage inlet 91 is blown out as jets from the plurality of right cooling air passage outlets 92, and the right induction heating coil 13b disposed in the lower housing 2 is blown out. , 13c, and 13d, the bottom surface of the winding 31 is cooled by collision jet heat transfer, and the high permeability of the coil base 17 is cooled while cooling the bottom surface of the high permeability magnetic body 19 that is held with the bottom surface exposed to the coil base 17. It flows from the lower part to the upper part through the gap of the holding part of the magnetic ferromagnet 19. Thereafter, the cooling air cools the upper surface of the winding 31 through the space between the upper surface of the winding 31 and the lower surface of the top plate 7, and then the induction heating coil 13a of the right upper housing support surface member 70 (see FIG. 21). Flows into the space where the right end induction heating coil 13a is cooled, flows out from the outlet 74 of the right upper casing support surface member 70 to the outside of the upper casing support surface member 70, and exhaust air It flows toward the road 26.
上筐体支持面部材７０の外へ出た冷却風は、本体筐体１の左寄りに配置された排気風路２６に向かって流れ、その過程で誘導加熱コイル１２及び高透磁率磁性体２０の近傍を通ってこれらを冷却し、排気風路２６を経て筐体排気口１０より本体筐体１の外へ排気される。
Cooling air that has flowed out of the upper housing support surface member 70 flows toward the exhaust air passage 26 disposed on the left side of the main body housing 1, and in the process, the induction heating coil 12 and the high permeability magnetic body 20. These are cooled through the vicinity, and are exhausted out of the main body casing 1 from the casing exhaust port 10 through the exhaust air passage 26.
各誘導加熱コイル１１、１２、１３は、弾性体２９を介して下筐体２に支持されており、弾性体２９により上方に付勢されて、トッププレート７の下面に間隔保持部材３０が押し当てられる。これによって誘導加熱コイル１１、１２、１３を構成する巻線３１の上面とトッププレート７との間に所定の間隔を保ち、巻線３１の上方を冷却風が滞りなく流れるようにして冷却効率を高めている。
Each induction heating coil 11, 12, 13 is supported by the lower housing 2 via an elastic body 29, and is biased upward by the elastic body 29, so that the spacing member 30 is pressed against the lower surface of the top plate 7. Hit. This maintains a predetermined distance between the top surface of the winding 31 constituting the induction heating coils 11, 12, and 13 and the top plate 7, so that the cooling air can flow without stagnation above the winding 31. It is increasing.
図２３は、実施の形態２に係る左側の上筐体支持面部材６０と上筐体支持面部材６０に配置された部品の斜視図である。
上筐体支持面部材６０の前端部は、上筐体フランジ部５１の上に形成される凹部５２（図５参照）に挿入されて係止される。上筐体支持面部材６０のコイル載置面６１及び架設部６８の背面側の周壁の上端には、取り付けフランジが形成されており、この取り付けフランジには、実施の形態１と同様の上筐体支持面締結部６６が形成されている。上筐体支持面締結部６６は締結部材４０を介して左支持面取付穴５６に係合され（図２１参照）、これによって上筐体支持面部材６０の後部が上筐体枠５０に固定される。
FIG. 23 is a perspective view of the left upper housing support surface member 60 and the components disposed on the upper housing support surface member 60 according to the second embodiment.
The front end portion of the upper housing support surface member 60 is inserted and locked into a recess 52 (see FIG. 5) formed on the upper housing flange portion 51. A mounting flange is formed at the upper end of the coil mounting surface 61 of the upper housing support surface member 60 and the peripheral wall on the back surface side of the erection portion 68. The upper flange is the same as that of the first embodiment. A body support surface fastening portion 66 is formed. The upper housing support surface fastening portion 66 is engaged with the left support surface mounting hole 56 via the fastening member 40 (see FIG. 21), whereby the rear portion of the upper housing support surface member 60 is fixed to the upper housing frame 50. Is done.
中央側底面６７の底面とコイル載置面６１の底面とは同一平面上にはなく、両者の間には段差があり、中央側底面６７は、コイル載置面６１よりも低い位置に配置されている。これは、本体筐体１がキッチンキャビネット２００に組み付けられたときに上面視で下筐体２と重なる位置に配置される中央側底面６７の底面を下げることで、中央側底面６７の上方の空間の高さを拡大して、誘導加熱コイル１１ａの下側に配置される高透磁率磁性体１８の高さ寸法を大きくすることができるようにしたものである。高透磁率磁性体１８の高さ寸法を大きくすることで、幅寸法を小さくしてもその機能を維持することができる。また、中央側底面６７の底面の上に形成される空間の高さを確保して、中央側底面６７の上に載置されるコイルベース１４の上に通風可能な空間を形成し、巻線３１の冷却効率を高めている。
The bottom surface of the center side bottom surface 67 and the bottom surface of the coil placement surface 61 are not on the same plane, and there is a step between them, and the center side bottom surface 67 is disposed at a position lower than the coil placement surface 61. ing. This is because the space above the central bottom surface 67 is lowered by lowering the bottom surface of the central bottom surface 67 arranged at a position overlapping the lower housing 2 when viewed from above when the main body housing 1 is assembled to the kitchen cabinet 200. The height of the high permeability magnetic body 18 disposed below the induction heating coil 11a can be increased. By increasing the height dimension of the high permeability magnetic body 18, the function can be maintained even if the width dimension is decreased. In addition, the height of the space formed on the bottom surface of the center side bottom surface 67 is secured, and a space that allows ventilation is formed on the coil base 14 placed on the center side bottom surface 67. The cooling efficiency of 31 is improved.
中央側底面６７の中央部分には、外側の誘導加熱コイル１１ａが配置される位置の内側に、コイル挿入口６７ａが形成されている。上筐体３が下筐体２に組み合わせられると、この中央側底面６７のコイル挿入口６７ａの中に、内側の誘導加熱コイル１１ｂが挿入される。
A coil insertion port 67a is formed in the central portion of the center side bottom surface 67 on the inner side of the position where the outer induction heating coil 11a is disposed. When the upper housing 3 is combined with the lower housing 2, the inner induction heating coil 11 b is inserted into the coil insertion opening 67 a of the center side bottom surface 67.
中央側底面６７には、上面視において誘導加熱コイル１１と重ならない位置（本実施の形態では誘導加熱コイル１１ａの外側）に、通風口が開口しており、この通風口を連通口６７ｂと称する。この連通口６７ｂには、冷却風路８０に設けられたコイル下吹出口８５のうちの一つ（図２２参照）が接続される。これにより、冷却風路８０から送られる冷却風は、コイル下吹出口８５及び連通口６７ｂを介して、誘導加熱コイル１１ａが載置された空間に直接的に流入し、巻線３１とトッププレート７の下面との間を流れる。このように冷却風路８０からの冷却風を直接的に巻線３１に供給することで、巻線３１の上面の冷却効率を高めている。
The central bottom surface 67 has a ventilation opening at a position where it does not overlap with the induction heating coil 11 in the top view (in this embodiment, outside the induction heating coil 11a). This ventilation opening is referred to as a communication opening 67b. . One of the coil lower outlets 85 provided in the cooling air passage 80 (see FIG. 22) is connected to the communication port 67b. Thus, the cooling air sent from the cooling air passage 80 directly flows into the space where the induction heating coil 11a is placed via the coil lower air outlet 85 and the communication port 67b, and the winding 31 and the top plate. It flows between the lower surface of 7. Thus, by supplying the cooling air from the cooling air passage 80 directly to the winding 31, the cooling efficiency of the upper surface of the winding 31 is increased.
図２４は、実施の形態２に係る左側の上筐体支持面部材６０と上筐体支持面部材６０に配置された部品の分解斜視図である。
中央側底面６７には、外側の誘導加熱コイル１１ａが載置される下方に、上筐体支持面部材６０の内外を連通させる通風口であるコイル下流入口６７ｃと磁性体冷却穴６７ｄが開口している。本実施の形態では、複数のコイル下流入口６７ｃと磁性体冷却穴６７ｄが、誘導加熱コイル１１ａの形状に沿って交互に設けられている。コイル下流入口６７ｃの一部には、冷却風路８０に設けられたコイル下吹出口８５が接続され（図２２参照）、コイル下吹出口８５及びコイル下流入口６７ｃを介して、誘導加熱コイル１１ａの下面に冷却風が吹き付けられる。また、コイル下流入口６７ｃの他の一部の直下には、冷却風路８０に形成されたコイル下吹出口８４（図２２参照）が配置される。
FIG. 24 is an exploded perspective view of the left upper housing support surface member 60 and components disposed on the upper housing support surface member 60 according to the second embodiment.
A coil downstream inlet 67c and a magnetic body cooling hole 67d, which are ventilation openings for communicating the inside and outside of the upper housing support surface member 60, are opened on the bottom surface 67 on the center side below the outside induction heating coil 11a. ing. In the present embodiment, a plurality of coil downstream inlets 67c and magnetic body cooling holes 67d are provided alternately along the shape of the induction heating coil 11a. A coil lower outlet 85 provided in the cooling air passage 80 is connected to a part of the coil downstream inlet 67c (see FIG. 22), and the induction heating coil 11a is connected via the coil lower outlet 85 and the coil downstream inlet 67c. Cooling air is blown onto the lower surface of the. Further, a lower coil outlet 84 (see FIG. 22) formed in the cooling air passage 80 is disposed directly below the other part of the coil downstream inlet 67c.
磁性体冷却穴６７ｄ上には、高透磁率磁性体１８がコイルベース１４の下面に保持されて配置される。磁性体冷却穴６７ｄの外形と高透磁率磁性体１８の外形は概ね同じであり、磁性体冷却穴６７ｄから高透磁率磁性体１８の底面が露出する。このため、冷却風路８０から送られる冷却風は、高透磁率磁性体１８に直接接触し、高透磁率磁性体１８は効率よく冷却される。
A high permeability magnetic body 18 is held on the lower surface of the coil base 14 and disposed on the magnetic body cooling hole 67d. The outer shape of the magnetic body cooling hole 67d and the outer shape of the high permeability magnetic body 18 are substantially the same, and the bottom surface of the high permeability magnetic body 18 is exposed from the magnetic body cooling hole 67d. For this reason, the cooling air sent from the cooling air passage 80 is in direct contact with the high magnetic permeability magnetic body 18, and the high magnetic permeability magnetic body 18 is efficiently cooled.
コイルベース１４は、環状の内周壁１４ｅと、内周壁１４ｅの外周側に同心上に設けられた環状の外周壁１４ｆと、内周壁１４ｅと外周壁１４ｆとを径方向に接続するように設けられ、２つで一対となって高透磁率磁性体１８を保持する保持壁１４ｇとを備える。２つで一対の保持壁１４ｇは、コイルベース１４の周方向に沿って複数組設けられている。一対の保持壁１４ｇ同士の間には、上下方向に貫通した風路１４ｈが形成されている。内周壁１４ｅの一部、外周壁１４ｆの一部、及び対向する保持壁１４ｇで囲まれた風路１４ｈは、中央側底面６７に形成されたコイル下流入口６７ｃの上に配置され、風路１４ｈの上には巻線３１が配置される。このため、中央側底面６７のコイル下流入口６７ｃからの冷却風は、風路１４ｈを通って巻線３１に供給されるので、冷却風は外乱により拡散することなく巻線３１の底面に到達し、効率よく巻線３１を冷却することができる。
The coil base 14 is provided so as to radially connect the annular inner peripheral wall 14e, the annular outer peripheral wall 14f concentrically provided on the outer peripheral side of the inner peripheral wall 14e, and the inner peripheral wall 14e and the outer peripheral wall 14f. And two holding walls 14g for holding the high permeability magnetic body 18 in pairs. The two pairs of holding walls 14 g are provided in a plurality along the circumferential direction of the coil base 14. An air passage 14h penetrating in the vertical direction is formed between the pair of holding walls 14g. The air passage 14h surrounded by a part of the inner peripheral wall 14e, a part of the outer peripheral wall 14f, and the holding wall 14g facing each other is disposed on the coil downstream inlet 67c formed in the central bottom surface 67, and the air passage 14h. A winding 31 is arranged on the top. For this reason, the cooling air from the coil downstream inlet 67c on the central bottom surface 67 is supplied to the winding 31 through the air passage 14h, so that the cooling air reaches the bottom surface of the winding 31 without diffusing due to disturbance. The winding 31 can be efficiently cooled.
高透磁率磁性体１８は、本体筐体１がキッチンキャビネット２００に組み付けられたときに上面視で天板開口部２０３に重なる場所に配置されるもの（中央側底面６７の上に配置されるもの）と、キッチン天板２０１に重なる場所に大部分が配置されるもの（コイル載置面６１の上に配置されるもの）とで形状が異なり、前者を高透磁率磁性体１８ａ、後者を高透磁率磁性体１８ｂと呼び分ける。
The high-permeability magnetic body 18 is disposed in a place that overlaps the top plate opening 203 in a top view when the main body casing 1 is assembled to the kitchen cabinet 200 (arranged on the center-side bottom surface 67. ) And the one that is mostly disposed in the place overlapping the kitchen top plate 201 (one that is disposed on the coil mounting surface 61), the former being the high permeability magnetic body 18a and the latter being the high This is called magnetic permeability magnetic body 18b.
高透磁率磁性体１８ｂの全体としての面積は、その上方に配置される巻線３１の外形よりも大きく、巻線３１の概ね下方全体が、高透磁率磁性体１８ｂで覆われる。また、本実施の形態では、４つの高透磁率磁性体１８ｂが設けられており、各高透磁率磁性体１８ｂの外形線の少なくとも一つ以上は、巻線３１を外側から内側へ横切っている。また、隣り合う高透磁率磁性体１８ｂの隙間は、高透磁率磁性体１８ｂの高さ寸法よりも小さい。
隣り合う高透磁率磁性体１８ｂ同士に隙間を設けることで通風性を確保し、高透磁率磁性体１８ｂの冷却効果を高めることができる。また、高透磁率磁性体１８ｂ全体の面積を、その上方に配置される巻線３１の外形よりも大きくすることで、上筐体支持面部材６０やキッチン天板２０１へ巻線３１からの高周波磁界が到達することを抑制し、上筐体支持面部材６０やキッチン天板２０１の高温化を抑制して安全性を高めている。また、高透磁率磁性体１８ａ全体の面積を上記のように巻線３１の外形よりも大きくしたので、高透磁率磁性体１８ａの高さ寸法を小さめにしてもその機能が損なわれにくい。そして、本体筐体１がキッチンキャビネット２００に組み付けられたときにキッチン天板２０１の上に配置される高透磁率磁性体１８ａの高さ寸法を小さくすることで、上筐体３の高さを小さくすることができ、キッチン天板２０１の上面から上筐体３の上面までの吐出高さが小さくなることから、使用者の作業性を良好にすることができる。
The area of the high magnetic permeability magnetic body 18b as a whole is larger than the outer shape of the winding 31 disposed above the high magnetic permeability magnetic body 18b, and the entire lower portion of the winding 31 is covered with the high magnetic permeability magnetic body 18b. In the present embodiment, four high permeability magnetic bodies 18b are provided, and at least one of the outlines of each of the high permeability magnetic bodies 18b crosses the winding 31 from the outside to the inside. . Further, the gap between adjacent high permeability magnetic bodies 18b is smaller than the height dimension of the high permeability magnetic body 18b.
By providing a gap between adjacent high permeability magnetic bodies 18b, air permeability can be ensured and the cooling effect of the high permeability magnetic body 18b can be enhanced. Further, by making the entire area of the high magnetic permeability magnetic body 18b larger than the outer shape of the winding 31 disposed above, the high frequency from the winding 31 to the upper housing support surface member 60 and the kitchen top plate 201 is increased. The arrival of the magnetic field is suppressed, and the upper casing support surface member 60 and the kitchen top plate 201 are prevented from being heated to increase safety. Further, since the entire area of the high magnetic permeability magnetic body 18a is made larger than the outer shape of the winding 31 as described above, even if the height dimension of the high magnetic permeability magnetic body 18a is made smaller, its function is hardly impaired. The height of the upper casing 3 is reduced by reducing the height dimension of the high magnetic permeability magnetic body 18a disposed on the kitchen top plate 201 when the main body casing 1 is assembled to the kitchen cabinet 200. Since the discharge height from the upper surface of the kitchen top plate 201 to the upper surface of the upper housing 3 can be reduced, the workability of the user can be improved.
コイルベース１４の外周壁１４ｆ及び上壁には、それぞれ、隣り合う高透磁率磁性体１８ａの隙間と対向する位置に、隙間部側面開口１４ａと隙間部上面開口１４ｃが形成されている。相対的に圧力の高い隙間部側面開口１４ａからコイルベース１４内に冷却風が流入し、その冷却風は上壁の隙間部上面開口１４ｃから上方へと吹き出される。このため、隣り合う高透磁率磁性体１８ａの対向面と、巻線３１の底面の冷却効率を高めることができる。
On the outer peripheral wall 14f and the upper wall of the coil base 14, a gap portion side surface opening 14a and a gap portion upper surface opening 14c are formed at positions facing the gaps between the adjacent high magnetic permeability magnetic bodies 18a. Cooling air flows into the coil base 14 from the gap side opening 14a having a relatively high pressure, and the cooling air is blown upward from the gap upper surface opening 14c of the upper wall. For this reason, the cooling efficiency of the opposing surface of the adjacent high magnetic permeability magnetic body 18 a and the bottom surface of the winding 31 can be increased.
また、コイルベース１４の外周壁１４ｆには、高透磁率磁性体１８ａと対向する位置にも、複数の側面開口１４ｂが設けられている。このように高透磁率磁性体１８ａの外側面の一部を側面開口１４ｂから露出させ、冷却風を高透磁率磁性体１８ａに接触させて冷却効率を高めている。
The outer peripheral wall 14f of the coil base 14 is also provided with a plurality of side openings 14b at positions facing the high permeability magnetic body 18a. In this way, a part of the outer surface of the high permeability magnetic body 18a is exposed from the side opening 14b, and cooling air is brought into contact with the high permeability magnetic body 18a to increase the cooling efficiency.
また、コイルベース１４の上面には、上方に突出する巻線支持部１４ｄが設けられており、この巻線支持部１４ｄの上に誘導加熱コイル１１ａの巻線３１が載置される。本実施の形態では、巻線支持部１４ｄはコイルベース１４の径方向に沿って複数設けられている。巻線支持部１４ｄの上に巻線３１を配置することで、コイルベース１４の上面と巻線３１の底面との間に冷却風が通過する風路を形成し、巻線３１の底面の冷却効率を高めている。
In addition, a winding support portion 14d protruding upward is provided on the upper surface of the coil base 14, and the winding 31 of the induction heating coil 11a is placed on the winding support portion 14d. In the present embodiment, a plurality of winding support portions 14 d are provided along the radial direction of the coil base 14. By arranging the winding 31 on the winding support portion 14d, an air path through which cooling air passes is formed between the upper surface of the coil base 14 and the bottom surface of the winding 31, and cooling of the bottom surface of the winding 31 is achieved. Increases efficiency.
コイルベース１４の内周壁１４ｅ及び外周壁１４ｆには、数カ所の脚部が設けられており、この脚部の取付穴を締結部材４０で中央側底面６７のコイルベース締結部６５に締結することで、コイルベース１４が上筐体支持面部材６０に着脱自在に取り付けられている。
The inner peripheral wall 14e and the outer peripheral wall 14f of the coil base 14 are provided with several leg portions, and the mounting holes of the leg portions are fastened to the coil base fastening portion 65 of the center side bottom surface 67 by the fastening member 40. The coil base 14 is detachably attached to the upper housing support surface member 60.
図２５は、実施の形態２に係る右側の上筐体支持面部材７０と上筐体支持面部材７０に配置された部品の斜視図である。
右側の上筐体支持面部材７０は、鉄等の磁性の金属板で形成されており、その上にアルミ等の非磁性の金属板で形成された防磁板３８が配置されている。防磁板３８の上には、誘導加熱コイル１３ａの巻線３１及び高透磁率磁性体１９を保持するコイルベース１７が配置されている。
FIG. 25 is a perspective view of the upper housing support surface member 70 on the right side and the components disposed on the upper housing support surface member 70 according to the second embodiment.
The upper housing support surface member 70 on the right side is formed of a magnetic metal plate such as iron, and a magnetic shielding plate 38 formed of a nonmagnetic metal plate such as aluminum is disposed thereon. A coil base 17 that holds the winding 31 of the induction heating coil 13 a and the high permeability magnetic body 19 is disposed on the magnetic shield 38.
前述のとおり左側の上筐体支持面部材６０はアルミ等の非磁性の金属板を用いて構成されているが、図２５に示す右側の上筐体支持面部材７０は、鉄系の金属板を用いて構成されており、これによって強度を高めつつ薄肉化し、また低コスト化している。鉄系の金属板は、巻線３１から生じる高周波磁束により発熱しやすいことから、誘導加熱コイル１３ａと上筐体支持面部材７０との間に防磁板３８を配置している。
As described above, the left upper housing support surface member 60 is configured using a non-magnetic metal plate such as aluminum, but the right upper housing support surface member 70 shown in FIG. 25 is an iron-based metal plate. Thus, the thickness is reduced and the cost is reduced while increasing the strength. Since the iron-based metal plate is likely to generate heat due to the high-frequency magnetic flux generated from the winding 31, a magnetic shield plate 38 is disposed between the induction heating coil 13 a and the upper housing support surface member 70.
防磁板３８の外周のうち、上筐体枠５０に組み付けられたときに誘導加熱コイル１３ｂと対向する部分を除く外周には、側壁３８ａが設けられており、巻線３１からの高周波磁束が横方向に漏洩して不要な加熱がなされることを抑制して冷却負荷を軽減している。
防磁板３８の側壁３８ａの一部には開口３８ｂが設けられ、側壁３８ａ内への冷却風の通風を促進して誘導加熱コイル１３ａ及び高透磁率磁性体１９の冷却効率を高めている。開口３８ｂからは一部の磁束が漏洩するが、磁束が漏洩しても支障がない程度となるように開口３８ｂの開口面積が設定されている。
A side wall 38a is provided on the outer periphery of the magnetic shield 38 excluding a portion facing the induction heating coil 13b when assembled to the upper casing frame 50, and the high-frequency magnetic flux from the winding 31 is lateral. The cooling load is reduced by suppressing unnecessary heating due to leakage in the direction.
An opening 38b is provided in a part of the side wall 38a of the magnetic shield 38, and the cooling efficiency of the induction heating coil 13a and the high-permeability magnetic body 19 is enhanced by facilitating the flow of cooling air into the side wall 38a. A part of the magnetic flux leaks from the opening 38b, but the opening area of the opening 38b is set so that there is no problem even if the magnetic flux leaks.
上筐体支持面部材７０の手前側の側壁７２には、支持面係止穴７８が設けられている。この支持面係止穴７８には、上筐体枠５０の手前側の辺の下部に設けられた上筐体係止部５８（図３０参照）が挿入され、これによって上筐体支持面部材７０が上筐体枠５０に係止される。上筐体支持面部材７０の背面側の側壁７２の上端には、この上端から背面側に向かって略水平に延びる取り付けフランジが形成されており、取り付けフランジには上筐体支持面締結部７７が形成されている。上筐体支持面締結部７７は、ネジ等の締結部材４０の先端を係止する。
A support surface locking hole 78 is provided in the side wall 72 on the front side of the upper housing support surface member 70. In this support surface locking hole 78, an upper housing locking portion 58 (see FIG. 30) provided at the lower part of the near side of the upper housing frame 50 is inserted, whereby the upper housing supporting surface member 70 is locked to the upper housing frame 50. At the upper end of the side wall 72 on the back surface side of the upper housing support surface member 70, a mounting flange extending substantially horizontally from the upper end toward the back surface is formed, and the upper housing support surface fastening portion 77 is formed on the mounting flange. Is formed. The upper housing support surface fastening portion 77 locks the tip of the fastening member 40 such as a screw.
図２６は、実施の形態２に係る右側の上筐体支持面部材７０と上筐体支持面部材７０に配置された部品の分解斜視図を示す。
図２６に示すように、一つの高透磁率磁性体を複数に分割して形成されたような複数の高透磁率磁性体１９が設けられている。これら複数の高透磁率磁性体１９の全体としての外形は、本体筐体１がキッチンキャビネット２００に組み付けられたときにキッチン天板２０１の上に載置される誘導加熱コイル１３ａの巻線３１の外形よりも大きく、高透磁率磁性体１９はこの巻線３１の概ね下方全体を覆うようにして配置される。本実施の形態では、複数（８つ）の高透磁率磁性体１９が設けられており、各高透磁率磁性体１９を平面視したときの外形線の少なくとも一つ以上は、誘導加熱コイル１３ａを構成する巻線３１の径方向外側から内側へと横切っている。このようにすることで、巻線３１からの高周波磁界が上筐体支持面部材７０やキッチン天板２０１へ到達するのを抑制して、冷却負荷を低減するとともに安全性を高めている。
FIG. 26 is an exploded perspective view of the upper housing support surface member 70 on the right side and the components disposed on the upper housing support surface member 70 according to the second embodiment.
As shown in FIG. 26, there are provided a plurality of high permeability magnetic bodies 19 formed by dividing one high permeability magnetic body into a plurality of parts. The overall outer shape of the plurality of high magnetic permeability magnetic bodies 19 is such that the winding 31 of the induction heating coil 13a placed on the kitchen top plate 201 when the main body housing 1 is assembled to the kitchen cabinet 200. It is larger than the outer shape, and the high permeability magnetic body 19 is arranged so as to cover the entire lower part of the winding 31. In the present embodiment, a plurality of (eight) high permeability magnetic bodies 19 are provided, and at least one of the outlines when each high permeability magnetic body 19 is viewed in plan is an induction heating coil 13a. Is traversed from the outside in the radial direction to the inside. By doing in this way, it suppresses that the high frequency magnetic field from the coil | winding 31 reaches | attains the upper housing | casing support surface member 70 and the kitchen top plate 201, and it is improving safety | security while reducing a cooling load.
隣り合う高透磁率磁性体１９同士の間には、隙間が設けられており、この隙間は、高透磁率磁性体１９の高さ寸法よりも小さい。隣り合う高透磁率磁性体１９の間に隙間を設けることで、通風性を確保するとともに高透磁率磁性体１９の表面積を増やし、空気との接触を増やして高透磁率磁性体１９の冷却効率を高めている。
A gap is provided between adjacent high permeability magnetic bodies 19, and this gap is smaller than the height dimension of the high permeability magnetic body 19. By providing a gap between adjacent high permeability magnetic bodies 19, air permeability is ensured, the surface area of the high permeability magnetic body 19 is increased, contact with air is increased, and the cooling efficiency of the high permeability magnetic body 19 is increased. Is increasing.
コイルベース１７の下面には、高透磁率磁性体１９を保持する保持部である保持壁１７ｅが設けられている。この保持壁１７ｅは、例えば、コイルベース１７の下面から下方に向かって延びる壁面を有しており、対向する壁面間に形成される下方に向かって開放された溝の中に、高透磁率磁性体１９が嵌め込まれる。保持壁１７ｅ及びコイルベース１７の上壁には、それぞれ、隣り合う高透磁率磁性体１９の隙間と対向する位置に、隙間部側面開口１７ｃと隙間部上面開口１７ａが形成されている。相対的に圧力の高い隙間部側面開口１７ｃからコイルベース１７内に冷却風が流入し、その冷却風はコイルベース１７の上壁の隙間部上面開口１７ａから上方へと吹き出される。このため、隣り合う高透磁率磁性体１９の対向面と、巻線３１の底面の冷却効率を高めることができる。
On the lower surface of the coil base 17, a holding wall 17 e that is a holding portion for holding the high permeability magnetic body 19 is provided. The holding wall 17e has, for example, a wall surface extending downward from the lower surface of the coil base 17, and has a high magnetic permeability magnet in a groove opened downward between the opposing wall surfaces. The body 19 is fitted. On the holding wall 17e and the upper wall of the coil base 17, a gap portion side surface opening 17c and a gap portion upper surface opening 17a are formed at positions facing the gaps between the adjacent high magnetic permeability magnetic bodies 19, respectively. Cooling air flows into the coil base 17 from the gap side opening 17c having a relatively high pressure, and the cooling air is blown upward from the gap upper surface opening 17a of the upper wall of the coil base 17. For this reason, the cooling efficiency of the opposing surface of the adjacent high magnetic permeability magnetic body 19 and the bottom surface of the winding 31 can be increased.
また、コイルベース１７の外周壁には、高透磁率磁性体１９と対向する位置にも、側面開口１７ｄが設けられている。このように高透磁率磁性体１９の外側面の一部を側面開口１７ｄから露出させ、冷却風を高透磁率磁性体１９に直接接触させて冷却効率を高めている。
Further, a side opening 17 d is provided on the outer peripheral wall of the coil base 17 at a position facing the high permeability magnetic body 19. In this way, a part of the outer surface of the high permeability magnetic body 19 is exposed from the side opening 17d, and the cooling air is brought into direct contact with the high permeability magnetic body 19 to increase the cooling efficiency.
また、コイルベース１７の上面には、上方に突出する巻線支持部１７ｂが設けられており、この巻線支持部１７ｂの上に誘導加熱コイル１３ａの巻線３１が載置される。巻線支持部１７ｂの上に巻線３１を配置することで、コイルベース１７の上面と巻線３１の底面との間に冷却風が通過する風路を形成し、巻線３１の底面の冷却効率を高めている。
In addition, a winding support portion 17b protruding upward is provided on the upper surface of the coil base 17, and the winding 31 of the induction heating coil 13a is placed on the winding support portion 17b. By disposing the winding 31 on the winding support portion 17b, an air path through which the cooling air passes is formed between the upper surface of the coil base 17 and the bottom surface of the winding 31, and the bottom surface of the winding 31 is cooled. Increases efficiency.
高透磁率磁性体１９の自己発熱は、高透磁率磁性体１９の底面から防磁板３８へ伝熱及び拡散される。防磁板３８の外周に設けられた側壁３８ａは、放熱フィンとして機能し、高透磁率磁性体１９の冷却効果を高めている。
The self-heating of the high magnetic permeability magnetic body 19 is transferred and diffused from the bottom surface of the high magnetic permeability magnetic body 19 to the magnetic shield plate 38. The side wall 38a provided on the outer periphery of the magnetic shielding plate 38 functions as a heat radiating fin and enhances the cooling effect of the high magnetic permeability magnetic body 19.
コイルベース１７に設けられた脚部には締結部材４０が挿入される取付穴が形成されており、また、防磁板３８の底面にも締結部材４０が挿入される取付穴が形成されている。コイルベース１７及び防磁板３８を上筐体支持面部材７０に取り付ける際には、コイルベース１７の脚部の取付穴と防磁板３８の取付穴とを重ねた状態で、これら取付穴に上から締結部材４０を挿入し、締結部材４０の先端を上筐体支持面部材７０の底面に形成されたコイルベース締結部７９に締結する。このようにすることで、締結部材４０と上筐体支持面部材７０との間にコイルベース１７及び防磁板３８が挟まれ、これらを上筐体支持面部材７０に着脱自在に取り付けることができる。
A mounting hole into which the fastening member 40 is inserted is formed in the leg portion provided in the coil base 17, and a mounting hole into which the fastening member 40 is inserted is also formed in the bottom surface of the magnetic shield 38. When the coil base 17 and the magnetic shield 38 are attached to the upper housing support surface member 70, the attachment holes of the legs of the coil base 17 and the attachment holes of the magnetic shield 38 are overlapped, and the attachment holes are viewed from above. The fastening member 40 is inserted, and the tip of the fastening member 40 is fastened to a coil base fastening portion 79 formed on the bottom surface of the upper housing support surface member 70. By doing so, the coil base 17 and the magnetic shield 38 are sandwiched between the fastening member 40 and the upper housing support surface member 70, and these can be detachably attached to the upper housing support surface member 70. .
図２７は、実施の形態２に係る誘導加熱調理器の本体筐体１から通気口カバー８を外し、トッププレート７を透視した上面図である。図２７では、冷却風の流れを矢印で概念的に示している。図２８は、図２７のＡ−Ａ断面における上筐体３及び下筐体２の上部の矢視図である。
冷却風路８０の上面のコイル下吹出口８４の一部が、左側の上筐体支持面部材６０に設けられたコイル下流入口６７ｃの下に配置される。また、筒状のダクトを有するコイル下吹出口８５の一部が、コイル下流入口６７ｃに接続される。また、コイル下吹出口８５の一つは、巻線３１よりも外周側に設けられた連通口６７ｂに接続される。
FIG. 27 is a top view of the top plate 7 seen through with the vent cover 8 removed from the main body housing 1 of the induction heating cooker according to the second embodiment. In FIG. 27, the flow of the cooling air is conceptually indicated by arrows. FIG. 28 is an arrow view of the upper portions of the upper housing 3 and the lower housing 2 in the AA cross section of FIG.
A part of the coil lower air outlet 84 on the upper surface of the cooling air passage 80 is disposed below the coil downstream inlet 67c provided in the upper housing support surface member 60 on the left side. A part of the coil lower outlet 85 having a cylindrical duct is connected to the coil downstream inlet 67c. Further, one of the coil lower outlets 85 is connected to a communication port 67 b provided on the outer peripheral side of the winding 31.
図２９は、図２７のＢ−Ｂ断面矢視図である。
基板ケースユニット２４の上面の手前側（図２９の紙面右側）に配置された前側排気口２４ｂは、冷却風路８０の下面に形成された冷却風路流入口８１に接続され、基板ケースユニット２４の後側に配置された後側排気口２４ｃは、右冷却風路９０の底面に形成された右冷却風路流入口９１に接続されている。後側排気口２４ｃから吹き出されて右冷却風路流入口９１から右冷却風路９０内に流入した冷却風は、複数の右冷却風路吹出口９２から噴流として上方に吹き出される。
29 is a cross-sectional view taken along the line BB in FIG.
A front exhaust port 24 b disposed on the front side of the upper surface of the substrate case unit 24 (on the right side in FIG. 29) is connected to a cooling air passage inlet 81 formed on the lower surface of the cooling air passage 80. The rear exhaust port 24 c disposed on the rear side is connected to a right cooling air passage inlet 91 formed on the bottom surface of the right cooling air passage 90. The cooling air blown out from the rear exhaust port 24c and flows into the right cooling air passage 90 from the right cooling air passage inlet 91 is blown upward as jets from the plurality of right cooling air passage outlets 92.
図３０は、図２７のＣ−Ｃ断面矢視図である。図３０（Ａ）は、図２７のＣ−Ｃ断面全体を示し、図３０（Ｂ）、（Ｃ）、（Ｄ）は、それぞれ（Ａ）のＹ１部、Ｙ２部、Ｙ３部の拡大図である。
図３０（Ａ）、（Ｂ）に示すように、上筐体３に形成された上筐体取付穴５５の下側に、上筐体支持面部材７０の上筐体支持面締結部７７が重ねられ、上から挿入された締結部材４０の先端部が上筐体支持面締結部７７に締結され、これによって上筐体支持面部材７０が上筐体枠５０に固定される。
30 is a cross-sectional view taken along the line CC of FIG. 30A shows the entire CC cross section of FIG. 27, and FIGS. 30B, 30C, and 30D are enlarged views of the Y1, Y2, and Y3 parts of FIG. is there.
As shown in FIGS. 30A and 30B, the upper housing support surface fastening portion 77 of the upper housing support surface member 70 is provided below the upper housing mounting hole 55 formed in the upper housing 3. The front end portion of the fastening member 40 that is overlapped and inserted from above is fastened to the upper housing support surface fastening portion 77, whereby the upper housing support surface member 70 is fixed to the upper housing frame 50.
図３０（Ａ）、（Ｃ）に示すように、上筐体フランジ部５１の前部には、上筐体係止部５８が設けられている。本実施の形態では、上筐体係止部５８は、後方に向かって延びる薄板状の突片であり、この上筐体係止部５８は上筐体支持面部材７０に形成された支持面係止穴７８（図２５、図２６参照）に挿入される。上筐体係止部５８が支持面係止穴７８に挿入されることで、上筐体枠５０と上筐体支持面部材７０とが、前部において結合される。
As shown in FIGS. 30A and 30C, an upper housing locking portion 58 is provided at the front portion of the upper housing flange portion 51. In the present embodiment, the upper housing locking portion 58 is a thin plate-like projecting piece extending rearward, and the upper housing locking portion 58 is a support surface formed on the upper housing support surface member 70. It is inserted into the locking hole 78 (see FIGS. 25 and 26). By inserting the upper housing locking portion 58 into the support surface locking hole 78, the upper housing frame 50 and the upper housing support surface member 70 are coupled at the front portion.
図３０（Ａ）、（Ｄ）に示すように、コイルベース１７の上に配置された巻線３１の上面と、トッププレート７の下面との間に、冷却風が流れる通風路となる空間が確保され、また、コイルベース１７の下面に配置された隣り合う高透磁率磁性体１９の隙間にも、冷却風が流れる通風路が確保されている。
As shown in FIGS. 30A and 30D, a space serving as a ventilation path through which cooling air flows is formed between the upper surface of the winding 31 disposed on the coil base 17 and the lower surface of the top plate 7. A ventilation path through which cooling air flows is also secured in the gap between adjacent high-permeability magnetic bodies 19 secured on the lower surface of the coil base 17.
次に、図２７〜図３０を適宜参照して、冷却風の流れを説明する。
図２７、図２９に示すように、基板ケースユニット２４内に設けられた冷却ファン２５からの送風は、手前側の前側排気口２４ｂと奥側の後側排気口２４ｃの２つに分流し、それぞれ、冷却風路８０と右冷却風路９０に流入する。
Next, the flow of cooling air will be described with reference to FIGS.
As shown in FIGS. 27 and 29, the air blown from the cooling fan 25 provided in the substrate case unit 24 is divided into two, a front exhaust port 24b on the front side and a rear exhaust port 24c on the back side, The air flows into the cooling air passage 80 and the right cooling air passage 90, respectively.
右冷却風路９０内に流入した冷却風は、右冷却風路９０の上面に形成された複数の右冷却風路吹出口９２から上方へ吹き出される。右冷却風路吹出口９２から吹き出された冷却風は、これまでに説明したとおり上方に配置された誘導加熱コイル１３ｂ、１３ｃ、１３ｄの底面及び側面並びに高透磁率磁性体１９に接触してこれらを冷却しつつ、相対的に圧力の低い誘導加熱コイル１３ａに向かって流れ、上筐体支持面部材７０の上を流れて流出口７４から上筐体支持面部材７０の外へと流出する。
The cooling air flowing into the right cooling air passage 90 is blown upward from a plurality of right cooling air passage outlets 92 formed on the upper surface of the right cooling air passage 90. The cooling air blown out from the right cooling air passage outlet 92 comes into contact with the bottom and side surfaces of the induction heating coils 13b, 13c, 13d and the high-permeability magnetic body 19 disposed above as described above. The air flows toward the induction heating coil 13 a having a relatively low pressure, flows over the upper housing support surface member 70, and flows out of the upper housing support surface member 70 from the outlet 74.
冷却風路８０内に流入した冷却風は、一部が右側に流れ、残りの一部が左側に流れる。
冷却風路８０内を右側に流れた冷却風は、図２７、図３０に示すように、右吹出口８３及び右側の上筐体支持面部材７０の流入口７３を介して、上筐体３の右側の上方の空間（上筐体支持面部材７０の上方の空間）に流入する。上筐体支持面部材７０の上方の空間に流入した冷却風は、誘導加熱コイル１３ａ及びその下に配置された高透磁率磁性体１９を冷却し、その後、流出口７４から上筐体支持面部材７０の外へ流出する。上筐体支持面部材７０の外へ出た冷却風は、本体筐体１の左寄りに配置された排気風路２６に向かって流れ、その過程で誘導加熱コイル１２の近傍を通ってこれを冷却し、排気風路２６を経て筐体排気口１０より本体筐体１の外へ排気される。
A part of the cooling air flowing into the cooling air passage 80 flows to the right side, and the remaining part flows to the left side.
As shown in FIGS. 27 and 30, the cooling air that has flowed to the right in the cooling air passage 80 passes through the right air outlet 83 and the inlet 73 of the right upper housing support surface member 70, and the upper housing 3. Into the upper space on the right side (the space above the upper housing support surface member 70). The cooling air that has flowed into the space above the upper housing support surface member 70 cools the induction heating coil 13a and the high-permeability magnetic body 19 disposed therebelow, and then the upper housing support surface from the outlet 74. It flows out of the member 70. Cooling air that has flowed out of the upper housing support surface member 70 flows toward the exhaust air passage 26 disposed on the left side of the main body housing 1, and cools it through the vicinity of the induction heating coil 12 in the process. Then, the air is exhausted from the housing exhaust port 10 to the outside of the main body housing 1 through the exhaust air passage 26.
冷却風路８０内を左側に流れた冷却風は、図２７に示すように、コイル下吹出口８４及びコイル下吹出口８５に至る風路と、左側の上筐体支持面部材６０の流入口６３に接続される左吹出口８２に至る風路とに分岐する。
As shown in FIG. 27, the cooling air that has flowed to the left in the cooling air passage 80 flows into the air passage leading to the coil lower outlet 84 and the coil lower outlet 85, and the inlet of the left upper casing support surface member 60. Branches to the air path leading to the left outlet 82 connected to 63.
図２７、図２８に示すように、冷却風路８０内からコイル下吹出口８４及びコイル下吹出口８５に至る風路に流れた冷却風は、複数のコイル下吹出口８４又はコイル下吹出口８５から上方に吹き出され、これまでに説明したとおり誘導加熱コイル１１ａ、１１ｂの巻線３１や高透磁率磁性体１８を冷却し、その後、排気風路２６を経て筐体排気口１０より本体筐体１の外へ排気される。
As shown in FIGS. 27 and 28, the cooling air that has flowed from the inside of the cooling air passage 80 to the air passage extending from the coil lower air outlet 84 and the coil lower air outlet 85 to the plurality of coil lower air outlets 84 or the coil lower air outlets. 85, the windings 31 of the induction heating coils 11a and 11b and the high magnetic permeability magnetic body 18 are cooled as described above, and then the main body housing through the exhaust air passage 26 and the housing exhaust port 10 through the exhaust air passage 26. Exhausted outside the body 1.
図２７に示すように、冷却風路８０内から左吹出口８２に至る風路に流れた冷却風は、この左吹出口８２及び上筐体支持面部材６０の流入口６３を経て、上筐体３の上方の右側の空間（上筐体支持面部材６０の上方の空間）に流入して後方に向かって流れる。上筐体支持面部材６０の上方を後方に向かって流れる冷却風は、側壁６２に導かれて誘導加熱コイル１１ａの左端部に近づき、これに接触して冷却した後、流出口６４から上筐体支持面部材６０の外へ出る。上筐体支持面部材６０の外へ出た冷却風は、下筐体２に支持される誘導加熱コイル１１ｂの巻線３１に接触してこれを冷却した後、排気風路２６を経て筐体排気口１０より本体筐体１の外へ排気される。
As shown in FIG. 27, the cooling air that has flowed from the inside of the cooling air passage 80 to the air passage extending from the cooling air passage 80 to the left air outlet 82 passes through the left air outlet 82 and the inlet 63 of the upper housing support surface member 60, thereby It flows into the space on the right side above the body 3 (the space above the upper housing support surface member 60) and flows backward. The cooling air flowing rearward above the upper housing support surface member 60 is guided to the side wall 62 and approaches the left end portion of the induction heating coil 11a, and cools in contact with the cooling air. It goes out of the body support surface member 60. The cooling air that has flowed out of the upper housing support surface member 60 comes into contact with the winding 31 of the induction heating coil 11b supported by the lower housing 2 and cools it, and then passes through the exhaust air passage 26 and then the housing. The air is exhausted from the main body housing 1 through the exhaust port 10.
以上のように本実施の形態の誘導加熱調理器は、左側の上筐体支持面部材６０は外周部に側壁６２を備え、この側壁６２の内面の一部は、流入口６３から流出口６４に向かって、誘導加熱コイル１１ａの左端に近づいている。そして、誘導加熱コイル１１ａの左端部において、誘導加熱コイル１１ａと側壁６２とが最も近接している。このため、流入口６３から流出口６４に流れる冷却風は、風路断面が狭く圧力損失が高い上筐体３の誘導加熱コイル１１の配置空間においても、側壁６２に導かれて誘導加熱コイル１１ａの左端部の近くを流れることができる。したがって、冷却風が誘導加熱コイル１１ａの左端の冷却に寄与しないで誘導加熱コイル１１ａの近傍を通過することを軽減できるので、誘導加熱コイル１１ａの冷却効率を高め、巻線３１が高温となり損傷することを抑制する効果がある。
As described above, in the induction heating cooker of the present embodiment, the left upper casing support surface member 60 includes the side wall 62 on the outer peripheral portion, and a part of the inner surface of the side wall 62 extends from the inlet 63 to the outlet 64. Toward the left end of the induction heating coil 11a. And in the left end part of the induction heating coil 11a, the induction heating coil 11a and the side wall 62 are the closest. For this reason, the cooling air flowing from the inflow port 63 to the outflow port 64 is guided to the side wall 62 even in the arrangement space of the induction heating coil 11 of the upper housing 3 having a narrow air passage cross section and high pressure loss, and the induction heating coil 11a. It can flow near the left end of. Accordingly, it is possible to reduce the cooling air from passing through the vicinity of the induction heating coil 11a without contributing to the cooling of the left end of the induction heating coil 11a. Therefore, the cooling efficiency of the induction heating coil 11a is increased, and the winding 31 becomes hot and is damaged. There is an effect to suppress this.
右側の上筐体支持面部材７０は外周部に側壁７２を備え、側壁７２と側壁７２に対向する誘導加熱コイル１３ａとの間の流路幅は、流入口７３が配置される流入側よりも流出口７４が配置される流出側の方が狭くなるように構成されている。また、側壁７２は、流入側よりも流出側に近い位置において誘導加熱コイル１３ａに最も近づく。このため、風路断面が狭く冷却風量に制約のある上筐体３の誘導加熱コイル１３の配置空間においても、側壁７２と対向する誘導加熱コイル１３ａの側面の広い範囲に、冷却風を衝突させることができ、冷却効率が高まり、巻線３１が高温となり損傷することを抑制する効果がある。
なお、本実施の形態における側壁７２と同様の流路を形成する別部材からなる導風部材を設けてもよく、そのようにしても同様の作用効果を得ることができる。
The right upper housing support surface member 70 includes a side wall 72 on the outer peripheral portion, and the flow path width between the side wall 72 and the induction heating coil 13a facing the side wall 72 is larger than that of the inflow side where the inflow port 73 is disposed. The outlet side where the outlet 74 is disposed is configured to be narrower. Further, the side wall 72 is closest to the induction heating coil 13a at a position closer to the outflow side than to the inflow side. For this reason, even in the arrangement space of the induction heating coil 13 of the upper housing 3 with a narrow air passage cross section and limited cooling air volume, the cooling air is caused to collide with a wide range of the side surface of the induction heating coil 13a facing the side wall 72. This can increase the cooling efficiency and suppress the winding 31 from being damaged at a high temperature.
In addition, you may provide the wind guide member which consists of another member which forms the flow path similar to the side wall 72 in this Embodiment, and even if it does so, the same effect can be acquired.
左側の上筐体支持面部材６０は、上面視において、キッチン天板２０１の天板開口部２０３と重なる部分に中央側底面６７を設け、この中央側底面６７に通風可能な開口であるコイル下流入口６７ｃを設け、コイル下流入口６７ｃ（本発明の第一底面開口）の下方の冷却風路８０の上面にコイル下吹出口８４を設けた。そして、コイル下流入口６７ｃとコイル下吹出口８４とは、直線上の配置となる。このため、コイル下吹出口８４の冷却風は、コイル下流入口６７ｃを通って上筐体３の誘導加熱コイル１１の配置空間に流入しやすくなるとともに、その上方に配置される巻線３１の底面に冷却風が直線的に到達して衝突することで冷却効率が高まり、巻線３１が高温となって損傷することを抑制する効果がある。
The upper housing support surface member 60 on the left side is provided with a central bottom surface 67 in a portion overlapping the top plate opening 203 of the kitchen top plate 201 in the top view, and the coil downstream which is an opening through which the central side bottom surface 67 can ventilate. An inlet 67c is provided, and a coil lower outlet 84 is provided on the upper surface of the cooling air passage 80 below the coil downstream inlet 67c (first bottom opening of the present invention). The coil downstream inlet 67c and the coil lower outlet 84 are arranged on a straight line. For this reason, the cooling air from the coil lower outlet 84 easily flows into the arrangement space of the induction heating coil 11 of the upper housing 3 through the coil downstream inlet 67c, and the bottom surface of the winding 31 arranged above the coil 31. As the cooling air reaches linearly and collides with the cooling air, the cooling efficiency is increased, and the winding 31 is prevented from being damaged at a high temperature.
左側の上筐体支持面部材６０は、上面視において、キッチン天板２０１の天板開口部２０３と重なる部分に中央側底面６７を設け、この中央側底面６７に通風可能な開口である連通口６７ｂ及びコイル下流入口６７ｃを設け、その下方の冷却風路８０の上面にダクト部を有するコイル下吹出口８５を設けた。そして、コイル下吹出口８５のダクト部を、連通口６７ｂ及びコイル下流入口６７ｃ（本発明の第二支持面開口）に接続した。このため、排気風路２６の手前であって周囲に排気風路２６に向かう外乱となる流れがある場所においても、コイル下吹出口８５のダクト部により風路が形成されているので、上筐体３の誘導加熱コイル１１の配置空間に連通口６７ｂ及びコイル下流入口６７ｃから確実に冷却風が流入することができる。また、コイル下吹出口８５のダクト部の直管部分がノズルとして機能することにより、冷却風は巻線３１の底面に噴流として衝突するので冷却効率が高まり、巻線３１が高温となって損傷することを抑制する効果がある。
また、上から見て巻線３１から外れた場所に連通口６７ｂを設けることで、巻線３１の側面と上面を冷却する冷却風の流れを形成でき、巻線３１上面が高温となり損傷することを抑制する効果がある。
The upper housing support surface member 60 on the left side is provided with a central bottom surface 67 at a portion overlapping the top plate opening 203 of the kitchen top plate 201 in a top view, and a communication port that is an opening through which air can be passed through the central bottom surface 67. 67b and a coil downstream inlet 67c are provided, and a coil lower outlet 85 having a duct portion is provided on the upper surface of the cooling air passage 80 below the same. And the duct part of the coil lower blower outlet 85 was connected to the communicating port 67b and the coil downstream inlet 67c (2nd support surface opening of this invention). For this reason, the air passage is formed by the duct portion of the coil lower outlet 85 even in a place in front of the exhaust air passage 26 where there is a disturbance that flows toward the exhaust air passage 26 in the surrounding area. Cooling air can surely flow into the arrangement space of the induction heating coil 11 of the body 3 from the communication port 67b and the coil downstream inlet 67c. In addition, since the straight pipe portion of the duct portion of the coil lower outlet 85 functions as a nozzle, the cooling air collides with the bottom surface of the winding 31 as a jet, so that the cooling efficiency is increased and the winding 31 becomes hot and damaged. This has the effect of suppressing the operation.
In addition, by providing the communication port 67b at a place away from the winding 31 when viewed from above, a flow of cooling air for cooling the side surface and the top surface of the winding 31 can be formed, and the top surface of the winding 31 becomes hot and is damaged. There is an effect to suppress.
左側の外周側の誘導加熱コイル１１ａを構成する巻線３１の下方に配置され、巻線３１から発生する高周波磁界を集束させる複数の高透磁率磁性体１８と、巻線３１及び高透磁率磁性体１８を保持するコイルベース１４とを備えた。そして、上面視において高透磁率磁性体１８が巻線３１の下方をカバーする程度を示す下方カバー率は、本体筐体１がキッチンキャビネット２００に組み込まれたときに天板開口部２０３と重なる領域では、キッチン天板２０１に重なる領域に比べて低い。天板開口部２０３と重なる領域に配置される巻線３１の底面の一部は、高透磁率磁性体１８に覆われておらず、巻線３１の下方に通風可能な空間が形成されることから、巻線３１の底面に冷却風が接触しやすくなり、冷却効率が高まり、巻線３１が高温となり損傷することを抑制する効果がある。
A plurality of high-permeability magnetic bodies 18 that are arranged below the winding 31 constituting the induction heating coil 11a on the left outer peripheral side and focus a high-frequency magnetic field generated from the winding 31, and the windings 31 and the high-permeability magnetism. The coil base 14 holding the body 18 was provided. The lower cover ratio indicating the extent to which the high-permeability magnetic body 18 covers the lower portion of the winding 31 in a top view is a region that overlaps the top plate opening 203 when the main body housing 1 is incorporated in the kitchen cabinet 200. Then, it is low compared with the area | region which overlaps with the kitchen top plate 201. FIG. A part of the bottom surface of the winding 31 disposed in the region overlapping the top plate opening 203 is not covered with the high permeability magnetic body 18, and a space that allows ventilation is formed below the winding 31. Therefore, it becomes easy for the cooling air to come into contact with the bottom surface of the winding 31 to increase the cooling efficiency and to suppress the winding 31 from being damaged due to high temperature.
左側の外周側の誘導加熱コイル１１ａの下に配置される、高透磁率磁性体１８の高さ方向寸法は、上面視においてキッチン天板２０１と重なる部分に配置されるものは、天板開口部２０３と重なる部分に配置されるものに比べて小さい。このため、上筐体３の高さ寸法を小さくでき、調理容器の載置や移動時の上下方向の動作範囲が小さくなり調理の作業性を高める効果がある。
The height direction dimension of the high-permeability magnetic body 18 disposed below the induction heating coil 11a on the outer peripheral side on the left side is the top plate opening portion that is disposed in a portion overlapping the kitchen top plate 201 in a top view. It is smaller than the one arranged in the portion overlapping with 203. For this reason, the height dimension of the upper housing | casing 3 can be made small, the operation range of the up-down direction at the time of mounting and movement of a cooking container becomes small, and there exists an effect which improves workability | operativity of cooking.
右側の上筐体支持面部材７０のコイル載置面７１と誘導加熱コイル１３との間に非磁性体の金属板で形成した防磁板３８を備え、防磁板３８の外周には誘導加熱コイル１３の側面に対向する側壁３８ａを形成した。このため、防磁板３８の底面が高周波磁束を吸収するので、巻線３１からの高周波磁束が下方向に漏洩して上筐体支持面部材７０やキッチン天板２０１に到達することを抑制でき、これらの発熱を軽減することができる。また、誘導加熱コイル１３ａから横方向への高周波磁束は、防磁板３８の側壁３８ａで吸収され、本体筐体１からの磁束の漏洩を低減することができるので、冷却負荷が低減されるとともに安全性が高まる効果がある。また、防磁板３８はヒートシンクとして機能し、高透磁率磁性体１９の発熱を拡散して冷却風による冷却効率が高まることから、上筐体支持面部材７０やキッチン天板２０１の温度を低くでき、安全性が高まる。
A magnetic shield 38 formed of a non-magnetic metal plate is provided between the coil mounting surface 71 of the right upper housing support surface member 70 and the induction heating coil 13, and the induction heating coil 13 is provided on the outer periphery of the magnetic shield 38. A side wall 38a opposite to the side surface was formed. For this reason, since the bottom surface of the magnetic shield 38 absorbs the high frequency magnetic flux, the high frequency magnetic flux from the winding 31 can be prevented from leaking downward and reaching the upper housing support surface member 70 and the kitchen top plate 201. These heat generations can be reduced. Further, the high-frequency magnetic flux in the lateral direction from the induction heating coil 13a is absorbed by the side wall 38a of the magnetic shielding plate 38, and leakage of the magnetic flux from the main body housing 1 can be reduced. There is an effect to increase the nature. Further, the magnetic shield 38 functions as a heat sink and diffuses the heat generated by the high permeability magnetic body 19 to increase the cooling efficiency by the cooling air, so that the temperature of the upper housing support surface member 70 and the kitchen top plate 201 can be lowered. , Increase safety.
非磁性体の金属板で形成された防磁板３８の側壁３８ａの一部に通風可能な開口３８ｂを設けたことから、防磁板３８内への冷却風の流入が容易となり、冷却効率が高まり、巻線３１が高温となり損傷することを抑制する効果がある。
Since the opening 38b that allows ventilation is provided in a part of the side wall 38a of the magnetic shield 38 formed of a non-magnetic metal plate, the cooling air can easily flow into the magnetic shield 38, and the cooling efficiency is increased. There is an effect of suppressing the winding 31 from being damaged at a high temperature.
右側の上筐体支持面部材７０の支持面係止穴７８は、上筐体フランジ部５１の上筐体係止部５８に係止される。また、上筐体支持面部材６０の後部には、ネジ等の締結部材４０の先端を係止する上筐体支持面締結部７７を設けるとともに、上筐体３の上筐体枠５０に左支持面取付穴５６を形成し、上から左支持面取付穴５６及び上筐体支持面締結部７７に挿入された締結部材４０の先端を、上筐体支持面締結部７７にて係止するようにした。
上筐体３の上側から締結部材４０を着脱できるので、誘導加熱調理器の組立性を高めて製造コストを低減できるとともに、メンテナンス性を高めて品質コストを低減する効果がある。
また、本実施の形態では、支持面係止穴７８と上筐体係止部５８とで上筐体支持面部材７０と上筐体枠５０とを係止するので、構造的な強度が上がるとともに、組立時のガタつきが少なくなって組立状態での寸法のバラツキが減少し、品質を安定かつ向上させる効果がある。
なお、本実施の形態では、上筐体支持面部材７０の前部は、支持面係止穴７８と上筐体係止部５８との係止構造によって上筐体枠５０に固定され、上筐体支持面部材７０の後部は、締結部材４０を介して上筐体枠５０に固定される例を説明したが、これらの前後が逆であってもよい。
The support surface locking hole 78 of the right upper housing support surface member 70 is locked to the upper housing locking portion 58 of the upper housing flange portion 51. In addition, an upper housing support surface fastening portion 77 that locks the front end of the fastening member 40 such as a screw is provided at the rear portion of the upper housing support surface member 60, and left on the upper housing frame 50 of the upper housing 3. The support surface mounting hole 56 is formed, and the top end of the fastening member 40 inserted into the left support surface mounting hole 56 and the upper housing support surface fastening portion 77 from above is locked by the upper housing support surface fastening portion 77. I did it.
Since the fastening member 40 can be attached and detached from the upper side of the upper housing 3, it is possible to improve the assembling property of the induction heating cooker and reduce the manufacturing cost, and to improve the maintainability and reduce the quality cost.
In the present embodiment, since the upper housing support surface member 70 and the upper housing frame 50 are locked by the support surface locking hole 78 and the upper housing locking portion 58, the structural strength is increased. At the same time, the backlash at the time of assembling is reduced, the variation in dimensions in the assembled state is reduced, and there is an effect of stabilizing and improving the quality.
In the present embodiment, the front portion of the upper housing support surface member 70 is fixed to the upper housing frame 50 by the locking structure of the support surface locking hole 78 and the upper housing locking portion 58, and Although the rear part of the housing support surface member 70 has been described as being fixed to the upper housing frame 50 via the fastening member 40, these front and rear portions may be reversed.
複数の誘導加熱コイルを一つの加熱口の加熱手段として設けており、その複数の誘導加熱コイルの内の一部のみを、上筐体３の上に載置し、残りを下筐体２の上方に配置した。すなわち本実施の形態では、加熱口６ａにおいては２つの誘導加熱コイル１１ａ、１１ｂのうち、一つの誘導加熱コイル１１ａのみを上筐体３に配置した。また、加熱口６ｃにおいては４つの誘導加熱コイル１３ａ、１３ｂ、１３ｃ、１３ｄのうち、一つの誘導加熱コイル１３ａのみを上筐体３に配置した。このように上筐体３に保持される誘導加熱コイルの数を減らしたことで、上筐体３に係る荷重が低くなり、上筐体３に必要な構造強度も低くなる。このため、上筐体３を形成する金属板の板厚を薄くしても必要な強度は確保できるので、低コストで誘導加熱調理器を製造できる。また、上筐体３全体の重量を軽くできることから、製造時の組立性及び保守時のメンテナンス性を高める効果がある。
A plurality of induction heating coils are provided as heating means for one heating port, and only a part of the plurality of induction heating coils is placed on the upper housing 3 and the rest is disposed on the lower housing 2. Arranged above. That is, in the present embodiment, only one induction heating coil 11a out of the two induction heating coils 11a and 11b is arranged in the upper housing 3 in the heating port 6a. In addition, only one induction heating coil 13a among the four induction heating coils 13a, 13b, 13c, and 13d is arranged in the upper housing 3 at the heating port 6c. By reducing the number of induction heating coils held in the upper casing 3 in this way, the load on the upper casing 3 is reduced, and the structural strength required for the upper casing 3 is also reduced. For this reason, since the required strength can be ensured even if the thickness of the metal plate forming the upper housing 3 is reduced, the induction heating cooker can be manufactured at a low cost. Moreover, since the weight of the whole upper housing | casing 3 can be made light, there exists an effect which improves the assembly property at the time of manufacture, and the maintainability at the time of maintenance.
上筐体３に一部が配置された誘導加熱コイル１１ａと、下筐体２に配置された誘導加熱コイル１１ｂで構成された加熱手段を有する左側の加熱口６ａにおいて、上筐体３に配置された外周側の誘導加熱コイル１１ａは、下筐体２に配置された内周側の誘導加熱コイル１１ｂよりも最大火力が小さい。また、上筐体３に配置された誘導加熱コイル１３ａと、下筐体２に配置された誘導加熱コイル１３ｂ〜１３ｄで構成された加熱手段を有する右側の加熱口６ｃにおいて、上筐体３に配置された誘導加熱コイル１３ａは、下筐体２に配置された他の誘導加熱コイル１３ｂ〜１３ｄよりも最大火力が低い。
このため、誘導加熱コイル１１ａ、１３ａの巻線３１の被覆が溶融する等の損傷を抑制することができるとともに、上筐体支持面部材６０、７０やその下方に配置されるキッチン天板２０１の、温度上昇による劣化及び使用者が接触した場合のリスクを軽減できる。また、上筐体３の誘導加熱コイル１１が配置される空間の冷却負荷を軽減することができるので、冷却風の風量を少なくすることができる。したがって、風路断面を小さくすることができ、上筐体３の高さ寸法を小さくできることから、調理の作業性を高める効果がある。また、巻線３１及びその下に配置される高透磁率磁性体１８、１９の自己発熱を少なくすることができるので、冷却風を流す風路断面を狭くしても、巻線３１の絶縁被膜を劣化させない温度まで冷却しやすくなる。このため、上筐体３の高さ寸法を小さくしてキッチン天板２０１からの突出高さが低くなり、調理の作業性を向上する効果がある。
Arranged in the upper casing 3 at the left heating port 6a having heating means composed of the induction heating coil 11a partially disposed in the upper casing 3 and the induction heating coil 11b disposed in the lower casing 2. The induction heating coil 11a on the outer periphery side has a smaller maximum heating power than the induction heating coil 11b on the inner periphery side arranged in the lower housing 2. In addition, in the right heating port 6 c having heating means composed of the induction heating coil 13 a arranged in the upper housing 3 and the induction heating coils 13 b to 13 d arranged in the lower housing 2, The arranged induction heating coil 13 a has a lower maximum heating power than the other induction heating coils 13 b to 13 d arranged in the lower housing 2.
For this reason, while being able to suppress damage, such as melting | dissolving the coating | cover of the coil | winding 31 of the induction heating coils 11a and 13a, the upper housing | casing support surface members 60 and 70 and the kitchen top plate 201 arrange | positioned therebelow It is possible to reduce the deterioration due to temperature rise and the risk of user contact. Moreover, since the cooling load of the space where the induction heating coil 11 of the upper housing 3 is disposed can be reduced, the amount of cooling air can be reduced. Therefore, since the cross section of the air passage can be reduced and the height dimension of the upper housing 3 can be reduced, there is an effect of improving the workability of cooking. In addition, since the self-heating of the winding 31 and the high permeability magnetic bodies 18 and 19 disposed below the winding 31 can be reduced, the insulating coating of the winding 31 can be obtained even if the air passage cross section through which the cooling air flows is narrowed. It becomes easy to cool down to a temperature that does not deteriorate. For this reason, the height dimension of the upper housing | casing 3 is made small, the protrusion height from the kitchen top plate 201 becomes low, and there exists an effect which improves the workability | operativity of cooking.
左側の加熱口６ａ及び右側の加熱口６ｃは一つの加熱口６を複数の誘導加熱コイルで構成して加熱を行い、上筐体３に配置された誘導加熱コイル１１ａ、１３ａの巻線３１の温度が閾値以上となった場合、上筐体３に配置された誘導加熱コイル１１ａ、１３の火力は低下させるが、一緒に加熱を行う他の誘導加熱コイルのうちのいずれかの火力を高め、加熱口６のトータルの火力は維持されるように制御を行う。このため、調理作業性を損なうことなく、巻線３１が高温となり損傷することを抑制する効果がある。
The heating port 6a on the left side and the heating port 6c on the right side are heated by forming one heating port 6 with a plurality of induction heating coils, and the windings 31 of the induction heating coils 11a and 13a arranged in the upper housing 3 are heated. When the temperature is equal to or higher than the threshold value, the heating power of the induction heating coils 11a and 13 arranged in the upper housing 3 is reduced, but the heating power of any one of the other induction heating coils that perform heating together is increased, Control is performed so that the total heating power of the heating port 6 is maintained. For this reason, there exists an effect which suppresses that the coil | winding 31 becomes high temperature and is damaged, without impairing cooking workability | operativity.
左側の加熱口６ａは、上筐体３に配置された外側の誘導加熱コイル１１ａと、下筐体２に配置された内側の誘導加熱コイル１１ｂとで一つの加熱口６ａの加熱手段を構成するとともに、下筐体２に配置された誘導加熱コイル１１ｂのコイルベース１５の支持部１５ａで外側の誘導加熱コイル１１ａを保持する上筐体支持面部材６０を支持する。このため、上筐体３及び上筐体支持面部材６０への外側の誘導加熱コイル１３の重量による応力が軽減され、輸送や据付時の衝撃による損傷・変形を抑制して品質を高める効果がある。なお、コイルベース１５の支持部１５ａで上筐体支持面部材６０を支持することに代えて、コイルベース１５の支持部１５ａで、上筐体支持面部材６０の上に載置される誘導加熱コイル１１ａのコイルベース１４を支持してもよく、このようにしても同様の作用効果を得ることができる。
The left heating port 6a constitutes a heating means for one heating port 6a by the outer induction heating coil 11a arranged in the upper housing 3 and the inner induction heating coil 11b arranged in the lower housing 2. At the same time, the upper casing supporting surface member 60 that holds the outer induction heating coil 11 a is supported by the support portion 15 a of the coil base 15 of the induction heating coil 11 b disposed in the lower casing 2. For this reason, the stress due to the weight of the outer induction heating coil 13 on the upper casing 3 and the upper casing support surface member 60 is reduced, and the effect of improving the quality by suppressing the damage and deformation due to the impact at the time of transportation and installation is achieved. is there. Instead of supporting the upper housing support surface member 60 by the support portion 15 a of the coil base 15, induction heating placed on the upper housing support surface member 60 by the support portion 15 a of the coil base 15. The coil base 14 of the coil 11a may be supported, and similar effects can be obtained even in this way.
上筐体３に配置された誘導加熱コイルと、下筐体２に配置された誘導加熱コイルとで、一つの加熱口６の加熱手段を構成した。
そして、左側の加熱口６ａにおいては、上筐体３に配置された外周側の誘導加熱コイル１１ａの駆動周波数と、下筐体２に配置された内側の誘導加熱コイル１１ｂの駆動周波数とを４ｋＨｚ以上離したので、両方の誘導加熱コイル１１ａ、１３ｂで加熱を行った場合に被加熱物から発生する干渉音は４ｋＨｚ以上となり、使用者に聞こえにくくなることから、調理作業環境を向上する効果がある。
また、右側の加熱口６ｃにおいては、上筐体３に配置された右端の誘導加熱コイル１３ａの駆動周波数と下筐体２に配置された他の３つの誘導加熱コイル１３ｂ〜１３ｄの駆動周波数を同一としたことから、誘導加熱コイル１３ａ〜１３ｄの複数で同時に加熱を行っても、被加熱物から干渉音が発生しないことから、調理作業環境を向上する効果がある。
The induction heating coil disposed in the upper housing 3 and the induction heating coil disposed in the lower housing 2 constitute a heating means for one heating port 6.
In the left heating port 6a, the driving frequency of the outer induction heating coil 11a arranged in the upper casing 3 and the driving frequency of the inner induction heating coil 11b arranged in the lower casing 2 are 4 kHz. Since they are separated from each other, the interference sound generated from the object to be heated when heated by both induction heating coils 11a and 13b is 4 kHz or more, making it difficult for the user to hear. is there.
In the right heating port 6c, the drive frequency of the induction heating coil 13a at the right end disposed in the upper housing 3 and the drive frequency of the other three induction heating coils 13b to 13d disposed in the lower housing 2 are set. Since it was made the same, even if it heats simultaneously with the some of induction heating coils 13a-13d, since an interference sound does not generate | occur | produce from a to-be-heated object, there exists an effect which improves a cooking work environment.
左側の上筐体支持面部材６０に配置された外周側の誘導加熱コイル１１ａと、下筐体２に配置された内側の誘導加熱コイル１１ｂで一つの加熱口６ａの加熱手段を構成するとともに、下筐体２の上方に配置された内側の誘導加熱コイル１１ｂを冷却した冷却風はその後、上筐体３の上に載置された外周側の誘導加熱コイル１１ａを冷却する。
また、右側の上筐体支持面部材７０に配置された右端の誘導加熱コイル１３ａと、下筐体２に配置された３つの誘導加熱コイル１３ｂ〜１３ｄで一つの加熱口６ｃの加熱手段を構成するとともに、下筐体２の上方に配置された３つの誘導加熱コイル１３ｂ〜１３ｄを冷却した冷却風はその後、上筐体３の上に載置された右端の誘導加熱コイル１３ａを冷却する。
このため、少ない冷却風で効率よく複数の誘導加熱コイル１１、１３の冷却が行え、冷却ファン２５の送風能力を低くすることができるため、低騒音の誘導加熱調理器を得る効果がある。
The outer induction heating coil 11a arranged on the left upper casing support surface member 60 and the inner induction heating coil 11b arranged on the lower casing 2 constitute a heating means for one heating port 6a. The cooling air that has cooled the inner induction heating coil 11 b disposed above the lower housing 2 then cools the outer induction heating coil 11 a placed on the upper housing 3.
Further, the right end induction heating coil 13a disposed on the upper housing support surface member 70 on the right side and the three induction heating coils 13b to 13d disposed on the lower housing 2 constitute a heating means for one heating port 6c. At the same time, the cooling air that has cooled the three induction heating coils 13 b to 13 d disposed above the lower housing 2 then cools the induction heating coil 13 a at the right end placed on the upper housing 3.
For this reason, the plurality of induction heating coils 11 and 13 can be efficiently cooled with a small amount of cooling air, and the air blowing capacity of the cooling fan 25 can be lowered. Therefore, there is an effect of obtaining a low noise induction heating cooker.
