JP2004294050A - High-frequency heating cooker - Google Patents

High-frequency heating cooker Download PDF

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JP2004294050A
JP2004294050A JP2003413655A JP2003413655A JP2004294050A JP 2004294050 A JP2004294050 A JP 2004294050A JP 2003413655 A JP2003413655 A JP 2003413655A JP 2003413655 A JP2003413655 A JP 2003413655A JP 2004294050 A JP2004294050 A JP 2004294050A
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heating
steam
frequency
heating chamber
heated
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JP2003413655A
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JP4278502B2 (en
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Takahiko Yamazaki
孝彦 山崎
Tomomi Uchiyama
智美 内山
Yasuhisa Mori
泰久 森
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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Priority to JP2003413655A priority Critical patent/JP4278502B2/en
Priority to EP04005852A priority patent/EP1458220B1/en
Priority to DE602004001073T priority patent/DE602004001073T2/en
Priority to CNB2004100477411A priority patent/CN1256537C/en
Priority to US10/800,061 priority patent/US7199340B2/en
Publication of JP2004294050A publication Critical patent/JP2004294050A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a high-frequency heating cooker, quickly raising the temperature of material to be heated to a predetermined heating temperature and effectively using the steam to performing heating and cooking at high efficiency. <P>SOLUTION: This high-frequency heating cooker 100 includes: a high-frequency generating part 13 and a steam generating part 15 generating steam in a heating chamber 11 storing material to be heated, wherein at least either high-frequency wave or steam is supplied to the heating chamber 11 to perform heat treatment for the material to be heated. The cooker includes: a receiving tray 21 for placing the material to be heated thereon, which is removably disposed above at a predetermined space from the base of the heating chamber 11 to thereby divide the space in the heating chamber 11; a steam carrying means 29 for supplying the steam generated by a steam generating part 15 to the upper space positioned above the receiving tray 21; and a pre-heating means 17 for raising the ambient temperature in the heating chamber. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、蒸気発生機能を有する高周波加熱調理器に係り、特に調理の機能性および加熱効率を向上させるための技術に関する。   The present invention relates to a high-frequency heating cooker having a steam generating function, and more particularly to a technique for improving cooking functionality and heating efficiency.

従来から、被加熱物の収容された加熱室に蒸気を供給し、被加熱物を加熱する高周波加熱調理器が種々提案されている（例えば特許文献１参照）。この種の高周波加熱調理器は、高周波加熱と、蒸気の供給による蒸気加熱と、さらに機種によっては電熱による加熱等を適宜組み合わせて加熱調理することが可能となっている。   2. Description of the Related Art Conventionally, various high-frequency heating cookers have been proposed in which steam is supplied to a heating chamber containing an object to be heated to heat the object to be heated (for example, see Patent Document 1). This type of high-frequency heating cooker can perform cooking by appropriately combining high-frequency heating, steam heating by supplying steam, and, depending on the model, heating by electric heating.

特開平８−１７８２９８号公報JP-A-8-178298

しかしながら、上記のような高周波加熱調理器では、加熱開始時に蒸気が加熱室内に供給されてから所定の加熱温度に達するまでの時間が長く、このために加熱調理時間が長くなり、必ずしも使い勝手の良いものではなかった。いち早く所定の加熱温度まで昇温させるためには、蒸気発生量を増加させることが有効であるが、その反面、加熱室内の壁面等に生じる結露が多くなる。このため、加熱調理後には加熱室底面に多量の水が溜まり、その清掃に手間が掛かる等の問題を生じることとなる。また、高温で供給した蒸気が加熱室の壁面等で結露するので、加熱室壁面へ蒸気の熱量が奪われて、被加熱物への加熱量が相対的に減少することとなり、被加熱物の加熱効率が悪くなる問題もあった。   However, in the high-frequency heating cooker as described above, the time from when steam is supplied into the heating chamber at the time of starting heating to when the heating temperature reaches a predetermined heating temperature is long, and therefore, the cooking time is long, which is not always convenient. It was not something. In order to quickly raise the temperature to a predetermined heating temperature, it is effective to increase the amount of generated steam. However, on the other hand, dew condensation generated on a wall surface or the like in the heating chamber increases. For this reason, a large amount of water accumulates on the bottom surface of the heating chamber after the heating and cooking, which causes problems such as troublesome cleaning. In addition, since the steam supplied at a high temperature forms dew on the walls of the heating chamber, the amount of heat of the steam is deprived to the walls of the heating chamber, and the amount of heating of the object to be heated is relatively reduced. There was also a problem that the heating efficiency deteriorated.

さらに、最近の高周波加熱調理器においては、加熱室の容積を大きく稼ぐことで大型の被加熱物を加熱調理可能にしているが、加熱室容積の大型化に伴い加熱室全体を均一に速く昇温させることが困難となっている。加熱能力の不足は、加熱手段の数や出力を増加させれば改善はできるが、一般家庭用の高周波加熱調理器に対してはコストダウンや省エネルギの観点から好ましい方策とはいえない。   Furthermore, in recent high-frequency heating cookers, a large object to be heated can be cooked by increasing the volume of the heating chamber, but the entire heating chamber is uniformly and quickly raised with the increase in the volume of the heating chamber. It is difficult to warm. Insufficient heating capacity can be improved by increasing the number and output of heating means, but this is not a preferable measure for a high frequency heating cooker for general households from the viewpoint of cost reduction and energy saving.

また、従来の蒸気発生機能付きの高周波加熱調理器においては、単に蒸気を加熱室内に供給して被加熱物を加熱調理するのみで、例えば焼き料理中に蒸気を所望のタイミングで供給し、焼き具合を調整するというような機能はなく、加熱調理に際して蒸気が有する性質を最大限に利用しておらず、限られた範囲内で利用するだけのものであった。   In a conventional high-frequency heating cooker with a steam generating function, steam is simply supplied into a heating chamber to heat and cook an object to be heated. For example, steam is supplied at a desired timing during grilling and grilling is performed. There was no function of adjusting the condition, and the property of steam during heating and cooking was not used to the utmost, but was only used within a limited range.

本発明は、上記事情を考慮してなされたもので、いち早く被加熱物を所定の加熱温度まで昇温させることを可能にし、蒸気を有効に利用し、高効率の加熱調理を実現することのできる高周波加熱調理器を提供することを目的する。
また本発明は、加熱室に供給する蒸気の結露を低減することを目的とする。 The present invention has been made in consideration of the above circumstances, and enables an object to be heated to be quickly heated to a predetermined heating temperature, effectively utilizes steam, and realizes highly efficient heating cooking. It is an object of the present invention to provide a high-frequency heating cooker that can be used.
Another object of the present invention is to reduce the condensation of steam supplied to the heating chamber.

上記目的は下記構成により達成できる。
すなわち、本発明の高周波加熱調理器は、高周波発生部と、被加熱物を収容する加熱室内に蒸気を供給する蒸気供給部とを有し、前記加熱室に高周波と蒸気との少なくともいずれかを供給して被加熱物を加熱処理する高周波加熱調理器であって、被加熱物を載置すると共に前記加熱室の底面より所定間隔を隔てて、上方に脱着自在に配設することで該加熱室内の空間を分割する仕切り板とを有し、前記蒸気は前記仕切り板より上方に位置する上方空間内に供給されるようにしている。 The above object can be achieved by the following configuration.
That is, the high-frequency heating cooker of the present invention includes a high-frequency generation unit and a steam supply unit that supplies steam into a heating chamber that accommodates the object to be heated, and the heating chamber includes at least one of high-frequency waves and steam. A high-frequency heating cooker that supplies and heat-treats an object to be heated by placing the object to be heated and detachably disposed above the bottom of the heating chamber at a predetermined interval so as to be detachable. A partition plate for dividing a room space, and the steam is supplied to an upper space located above the partition plate.

この高周波加熱調理器によれば、加熱室内の空間を仕切り板の設置によって仕切り板上方の空間とそれ以外の空間とに分割し、上方空間に蒸気を供給することで、加熱調理に用いる加熱室内の空間を狭められ、加熱能力を高めることなく加熱による温度変化に対する応答性が高められる。   According to this high-frequency heating cooker, the space inside the heating chamber is divided into the space above the partition plate and the other space by installing the partition plate, and steam is supplied to the upper space, so that the heating chamber used for heating cooking And the responsiveness to a temperature change due to heating can be increased without increasing the heating capacity.

また本発明の高周波加熱調理器は、前記蒸気供給部が、前記加熱室内の前記仕切り板よりも下側の空間に蒸気発生部を備え、前記蒸気発生部で生成された蒸気を、前記加熱室内を通って、加熱室の上方空間に導くように構成される。
この構成によれば、蒸気発生部が加熱室内に設けられていることから、加熱室内の加熱と同時に、水を加熱し蒸気の発生を実現することができるため、熱効率が良好である。また、加熱室内を通って上方に導くように構成されていることから、熱損失を低減することができる。 Further, in the high-frequency heating cooker of the present invention, the steam supply unit includes a steam generation unit in a space below the partition plate in the heating chamber, and the steam generated by the steam generation unit is supplied to the heating chamber. Through the heating chamber to the space above the heating chamber.
According to this configuration, since the steam generating section is provided in the heating chamber, it is possible to heat the water and generate steam by realizing the heating at the same time as the heating in the heating chamber, so that the thermal efficiency is good. Moreover, since it is comprised so that it may guide | induce upward through a heating chamber, heat loss can be reduced.

また本発明の高周波加熱調理器は、前記仕切り板の周縁と前記加熱室の側壁との間に間隙を有し、前記蒸気発生部で生成された蒸気は、前記加熱室の側壁をとおり、前記間隙を介して、加熱室の上方空間に導かれるように構成される。
この構成により、極めて簡単な構成で、蒸気を効率よく加熱室の上方空間に導くことができる。また、供給を制御するためのシャッタ手段の形成も容易である。なお、高周波の供給口が側壁にある構造の場合には、高周波供給口に近いほど高周波が強く当たり、高周波発熱体に加熱むらが生じ、被加熱物に加熱むらを生じるという問題があったが、このように、前記蒸気発生部で生成された蒸気が、前記加熱室の側壁をとおり、前記間隙を介して、加熱室の上方空間に導かれるように構成することにより、下方より均一に供給される高周波により高周波発熱体を設けた仕切り板を均一加熱することができる。また仕切り板の間隙を上昇した蒸気によって均一な包み焼き加熱を実現することが可能となる。 Further, the high-frequency heating cooker of the present invention has a gap between a peripheral edge of the partition plate and a side wall of the heating chamber, and the steam generated by the steam generation unit passes through the side wall of the heating chamber, It is configured to be guided to the space above the heating chamber via the gap.
With this configuration, the steam can be efficiently guided to the space above the heating chamber with a very simple configuration. Further, it is easy to form a shutter means for controlling the supply. In the case of a structure in which the high-frequency supply port is provided on the side wall, there is a problem that the higher the frequency is, the closer to the high-frequency supply port, the higher the frequency is applied, and the high-frequency heating element generates uneven heating, and the object to be heated has uneven heating. In this way, the steam generated in the steam generation unit is configured to be guided to the upper space of the heating chamber through the gap, through the side wall of the heating chamber, and to be supplied more uniformly from below. The partition plate provided with the high-frequency heating element can be uniformly heated by the high frequency. In addition, it is possible to realize uniform wrapping and heating by the steam raised in the gap between the partition plates.

また本発明の高周波加熱調理器は、前記仕切り板は、周縁に貫通孔を有し、前記蒸気搬送手段は、前記蒸気発生部で生成された蒸気は、前記貫通孔を介して加熱室の上方空間に導かれる。
この構成により、仕切り板に貫通孔を形成するのみで容易に、蒸気を加熱室の上方空間に導くことができる。この場合も、供給を制御するためのシャッタ手段の形成が容易である。
例えば、被加熱物を収納する加熱室と、加熱室上部に設けられたヒータ加熱を行なう加熱手段と、加熱室底面に設けられた高周波を発生させ高周波加熱を行なう高周波発生手段と、蒸気を発生させる装置と、裏面に高周波発熱体を設けた被加熱物を載置する受け皿とを備え、受け皿は加熱室との間に間隙が出来るように構成とすることで、加熱室底面に設置した蒸気発生装置から発生した蒸気は上昇し、受け皿と加熱室の間隙を通って被加熱物が配置されている上部に蒸気が溜まる構成を得ることができる。 Further, in the high-frequency heating cooker of the present invention, the partition plate has a through-hole on a peripheral edge, and the steam conveying means is configured such that the steam generated in the steam generating unit is located above the heating chamber through the through-hole. Guided to space.
With this configuration, the steam can be easily guided to the space above the heating chamber simply by forming a through hole in the partition plate. Also in this case, it is easy to form a shutter means for controlling the supply.
For example, a heating chamber for accommodating an object to be heated, a heating means provided at the top of the heating chamber for heating the heater, a high frequency generation means provided at the bottom of the heating chamber for generating high frequency and performing high frequency heating, and generating steam And a tray for placing an object to be heated having a high-frequency heating element on the back surface. A configuration in which the steam generated from the generator rises and passes through the gap between the pan and the heating chamber and accumulates in the upper portion where the object to be heated is disposed can be obtained.

そして、仕切り板が加熱室を２分割するように構成されたことにより、被加熱物に多量の蒸気を供給し蒸気の散乱を防ぐと同時に、下方から供給された高周波が受け皿の上方に回り込むことが少なくなり、高周波発熱体への高周波の供給量が多くなり、被加熱物の下面の焦げ目がより付きやすくなり、ヒータ加熱時においても高効率な加熱が可能となるという効果がある。   And, since the partition plate is configured to divide the heating chamber into two parts, a large amount of steam is supplied to the object to be heated to prevent scattering of the vapor, and at the same time, the high frequency supplied from below goes around the upper part of the pan. And the amount of high-frequency supplied to the high-frequency heating element is increased, so that the lower surface of the object to be heated is more likely to be scorched, so that high-efficiency heating can be performed even during heater heating.

本発明の高周波加熱調理器は、前記仕切り板が、高周波発熱体を含む。   In the high frequency heating cooker of the present invention, the partition plate includes a high frequency heating element.

この高周波加熱調理器によれば、高周波発熱体が高周波によって発熱することで、予熱段階では、加熱室内の雰囲気温度を上昇させることができ、また、本加熱段階では、仕切り板に載置された被加熱物を下側から加熱することができる。   According to this high-frequency heating cooker, the high-frequency heating element generates heat by high frequency, so that in the preheating stage, the ambient temperature in the heating chamber can be increased, and in the main heating stage, it is placed on the partition plate. The object to be heated can be heated from below.

本発明の高周波加熱調理器は、前記仕切り板が、高周波遮蔽体を含む。
この構成によれば、仕切り板が、高周波を通しにくい、金属などの高周波遮蔽材料を含むように構成することにより、下方から供給された高周波が上方に回り込むことがより少なくなり、被加熱物への減水率を最大限に抑えることができる。またこの構成により、高周波が被加熱物に直接当たるのを防ぐことが出来、局所的な過加熱を防ぐことが可能となる。これにより、蒸気による加熱によって被加熱物が保水され、しっとりとおいしく出来上げるという効果がある。 In the high frequency heating cooker according to the present invention, the partition plate includes a high frequency shield.
According to this configuration, the partition plate is configured to include a high-frequency shielding material such as a metal, which is difficult to pass high-frequency waves. Water reduction rate can be minimized. Further, with this configuration, it is possible to prevent the high frequency from directly hitting the object to be heated, and to prevent local overheating. Thereby, there is an effect that the object to be heated is kept moist by the heating by the steam and is moist and delicious.

本発明の高周波加熱調理器は、前記仕切り板が、セラミック材又は耐熱樹脂材を含む。   In the high frequency heating cooker of the present invention, the partition plate contains a ceramic material or a heat-resistant resin material.

この高周波加熱調理器によれば、セラミック材又は耐熱樹脂材は高周波発熱体として作用することで、この高周波発熱体の発熱が高周波発熱体に蓄熱され、被加熱物を均一に加熱できる。また、高周波加熱を停止した後も高周波発熱体からの熱および蒸気の潜熱によって被加熱物の加熱を続けることができる。高周波発熱体としては、基体に高周波発熱体膜を形成した構成も有効である。   According to this high-frequency heating cooker, the ceramic material or the heat-resistant resin material acts as a high-frequency heating element, so that the heat generated by the high-frequency heating element is stored in the high-frequency heating element, and the object to be heated can be uniformly heated. Further, even after the high-frequency heating is stopped, the object to be heated can be continuously heated by the heat from the high-frequency heating element and the latent heat of the steam. As the high-frequency heating element, a configuration in which a high-frequency heating element film is formed on a base is also effective.

本発明の高周波加熱調理器は、前記仕切り板が、金属板を含む。   In the high frequency heating cooker of the present invention, the partition plate includes a metal plate.

この高周波加熱調理器によれば、仕切り板が金属板で構成されるあるいは金属板を基体としてなることで、被加熱物を高周波発熱体により加熱する際に、高周波による被加熱物の加熱を積極的に抑制することができる。   According to this high-frequency heating cooker, since the partition plate is made of a metal plate or the metal plate is used as a base, when the object to be heated is heated by the high-frequency heating element, the heating of the object to be heated by the high frequency is actively performed. Can be suppressed.

本発明の高周波加熱調理器は、前記加熱室内の雰囲気温度を上昇させる予熱手段を備えている。
この構成によれば、予熱手段により加熱室内の雰囲気温度を上昇させてから蒸気を加熱室へ供給することで、加熱室壁面等での結露が抑制され、高効率で被加熱物を加熱することができる。また蒸気量を増大させることなく効率よく蒸気加熱調理を実現することができる。 The high-frequency heating cooker of the present invention is provided with a preheating means for increasing an ambient temperature in the heating chamber.
According to this configuration, by increasing the ambient temperature in the heating chamber by the preheating means and then supplying steam to the heating chamber, dew condensation on the heating chamber wall and the like is suppressed, and the object to be heated can be heated with high efficiency. Can be. In addition, steam heating cooking can be efficiently realized without increasing the amount of steam.

本発明の高周波加熱調理器は、前記予熱手段が、前記加熱室の上方に設けた上部加熱ヒータを含む。   In the high frequency heating cooker of the present invention, the preheating means includes an upper heater provided above the heating chamber.

この高周波加熱調理器によれば、予熱用として用いるヒータを、調理用としても用いることができ、上部加熱ヒータの有効利用を図ることができる。   According to this high-frequency heating cooker, the heater used for preheating can be used for cooking, and the upper heater can be effectively used.

本発明の高周波加熱調理器は、前記予熱手段が、前記仕切り板に設けられた高周波発熱体を含む。   In the high frequency heating cooker according to the present invention, the preheating means includes a high frequency heating element provided on the partition plate.

この高周波加熱調理器によれば、仕切り板に設けられた高周波発熱体が高周波によって発熱することで、予熱段階では、加熱室内の雰囲気温度を効率よく上昇させることができる。   According to this high-frequency heating cooker, the high-frequency heating element provided on the partition plate generates heat by high frequency, so that the atmosphere temperature in the heating chamber can be efficiently increased in the preheating stage.

本発明の高周波加熱調理器は、前記蒸気搬送手段が、発生した蒸気を前記加熱室内から加熱室外に導出して再度加熱室内に導入する蒸気搬送路を有する。   The high-frequency heating cooker according to the present invention has a steam transport path in which the steam transport means guides the generated steam out of the heating chamber to the outside of the heating chamber and introduces the steam into the heating chamber again.

この高周波加熱調理器によれば、加熱室外に蒸気搬送路を設けることで、蒸気搬送路へのスケールや被加熱物からの汚れの付着がなくなり、清潔に維持することができる。   According to this high-frequency heating cooker, by providing the steam transfer path outside the heating chamber, there is no adhesion of scale or dirt from the object to be heated to the steam transfer path, and the steam can be maintained clean.

本発明の高周波加熱調理器は、前記仕切り板が、前記加熱室の内壁面の複数の高さ位置に設けられた係止部で係止される。   In the high frequency heating cooker according to the present invention, the partition plate is locked by locking portions provided at a plurality of height positions on the inner wall surface of the heating chamber.

この高周波加熱調理器によれば、加熱室内における仕切り板の高さを調理内容に応じて任意に設定できることにより、蒸気による加熱力の強弱を温度制御することなく簡易に変更することができる。   According to this high-frequency heating cooker, the height of the partition plate in the heating chamber can be arbitrarily set according to the content of the cooking, so that the strength of the heating power due to the steam can be easily changed without controlling the temperature.

本発明の高周波加熱調理器は、前記蒸気発生部が前記加熱室底面の背面側の壁面に沿って配設されるものを含む。   The high-frequency heating cooker according to the present invention includes a high-frequency heating cooker in which the steam generator is disposed along a wall surface on the back side of the bottom surface of the heating chamber.

特に、加熱室底面に蒸気発生部を配置することで、調理のための空間を犠牲にすることなく加熱室全体を有効利用することができる。また、下側で発生させた蒸気を一旦加熱室外に導いて加熱室上部から再度導入したり、蒸気を加熱室内の壁面に沿って上昇させることを選択的に行なうことも可能になる。さらに、加熱室底面に水を供給するため、安定して水を貯留できると共に、食品取り出し等の作業中に不用意に水がこぼれたりすることもなくなり、操作性も向上する。また、水は加熱室底面に供給されるため、加熱室底面よりも上位にある他の電気部品や電子部品などに水がかかることもない。また、蒸気は下から上に上昇するという特徴を生かし、加熱室底面に被加熱物を配置した場合でも蒸気を利用した調理が出来るという効果がある。さらにまたこの構成により、下方より均一に供給された高周波（マイクロ波）により高周波発熱体を設けた仕切り板の均一加熱と加熱室と仕切り板の間隙を上昇した蒸気とヒータ加熱による均一な包み焼き加熱調理を行なうことが出来る。   In particular, by disposing the steam generating section on the bottom of the heating chamber, the entire heating chamber can be effectively used without sacrificing the space for cooking. In addition, it is also possible to introduce the steam generated on the lower side once to the outside of the heating chamber and introduce it again from the upper part of the heating chamber, or to selectively raise the steam along the wall surface in the heating chamber. Furthermore, since water is supplied to the bottom of the heating chamber, the water can be stably stored, and water is not accidentally spilled during operations such as taking out food, and operability is improved. In addition, since water is supplied to the bottom of the heating chamber, water does not splash on other electrical components and electronic components located above the bottom of the heating chamber. In addition, utilizing the feature that steam rises from bottom to top, there is an effect that cooking using steam can be performed even when an object to be heated is arranged on the bottom of the heating chamber. Furthermore, with this configuration, uniform heating of the partition plate provided with the high-frequency heating element by high frequency (microwave) supplied uniformly from below, and uniform wrapping and burning by heating the steam raised in the gap between the heating chamber and the partition plate and the heater. Heat cooking can be performed.

本発明の高周波加熱調理器は、蒸気供給部で供給される蒸気が、被加熱物に直接当たるように構成される。
この構成により、高温の蒸気が被加熱物にあたり、潜熱によって均一に効率よく加熱することができる。高温の蒸気が被加熱物に直接当たるようにすることにより、被加熱物の温度を効率よく上昇させることができる。 The high frequency heating cooker of the present invention is configured such that the steam supplied by the steam supply unit directly hits the object to be heated.
With this configuration, the high-temperature steam hits the object to be heated, and can be uniformly and efficiently heated by the latent heat. By causing the high-temperature steam to directly hit the object to be heated, the temperature of the object to be heated can be efficiently increased.

本発明の高周波加熱調理器は、高周波を分散させて加熱室に供給する高周波分散手段を備えたものを含む。
この構成により、高周波を分散させて加熱室内に供給する高周波分散手段を備えたことにより、局所的な過加熱を防ぎ、より均一に下方から加熱することができるので、仕切り板が均一に加熱され、仕切り板上における温度むらが抑制され、加熱むらがより小さくなる。 The high-frequency heating cooker of the present invention includes one provided with high-frequency dispersion means for dispersing high-frequency waves and supplying the high-frequency waves to the heating chamber.
With this configuration, the provision of the high-frequency dispersing means for dispersing the high-frequency wave and supplying the high-frequency wave into the heating chamber prevents local overheating, and can more uniformly heat from below, so that the partition plate is uniformly heated. In addition, temperature unevenness on the partition plate is suppressed, and heating unevenness is further reduced.

本発明の高周波加熱調理器は、前記高周波発生部と前記蒸気発生部と前記予熱手段とを制御する制御部を備え、前記制御部が、前記予熱手段の発熱により前記加熱室を加熱する予熱ステップと、被加熱物を前記高周波発生部からの高周波、前記蒸気発生部からの蒸気の少なくともいずれかを供給して加熱処理を行なう本加熱ステップとをこの順で実行するように構成される。   The high-frequency heating cooker of the present invention includes a control unit that controls the high-frequency generation unit, the steam generation unit, and the preheating unit, and the control unit heats the heating chamber by heat generated by the preheating unit. And a main heating step of heating the object to be heated by supplying at least one of the high frequency from the high frequency generator and the steam from the steam generator.

この高周波加熱調理器によれば、予熱ステップを実行してから蒸気供給を行なう本加熱ステップを実行することにより、加熱室が高温雰囲気になってから蒸気が供給されることになり、供給された蒸気が加熱室壁面等で結露することが大幅に低減する。これにより、清掃に手間のかからない使い勝手の良い構成にできる。   According to this high frequency heating cooker, by performing the main heating step of performing the preheating step and then performing the steam supply, the steam is supplied after the heating chamber becomes a high temperature atmosphere, and the steam is supplied. The condensation of steam on the wall of the heating chamber is greatly reduced. Thereby, it is possible to provide an easy-to-use configuration that does not require cleaning.

本発明の高周波加熱調理器は、前記高周波発生部と前記蒸気発生部と前記予熱手段とを制御する制御部を備え、前記制御部が、被加熱物の加熱中に、前記蒸気発生部から蒸気を所定時間加熱室内に供給する割り込み処理機能を有する。   The high-frequency heating cooker of the present invention includes a control unit that controls the high-frequency generation unit, the steam generation unit, and the preheating unit. Is supplied to the heating chamber for a predetermined time.

この高周波加熱調理器によれば、被加熱物の加熱中に蒸気を供給することで、蒸気が有する潜熱によって、被加熱物の内部までを均一に加熱することができ、また、被加熱物の焼き色を均一にすることができ、さらに、加熱室が蒸気温度以上に加熱されている場合に、加熱室内の雰囲気温度を下げ、被加熱物を冷ますことができる。   According to this high-frequency heating cooker, by supplying steam during the heating of the object to be heated, the interior of the object to be heated can be uniformly heated by the latent heat of the steam. The baking color can be made uniform, and when the heating chamber is heated to a temperature higher than the steam temperature, the atmosphere temperature in the heating chamber can be lowered and the object to be heated can be cooled.

本発明の高周波加熱調理器は、前記割り込み処理を任意のタイミングで実行させる蒸気供給スイッチを備えている。   The high-frequency heating cooker according to the present invention includes a steam supply switch for executing the interrupt processing at an arbitrary timing.

この高周波加熱調理器によれば、加熱調理中の任意のタイミングで蒸気を加熱室内に供給することができ、加熱調理に必要な量の蒸気が必要とするタイミングで簡単な操作により供給することができる。従って、加熱むらを防ぎ、均一な包み焼き処理を行なうことができる。   According to this high-frequency heating cooker, steam can be supplied into the heating chamber at an arbitrary timing during the cooking, and the amount of steam required for the heating can be supplied by a simple operation at the required timing. it can. Accordingly, uneven heating can be prevented and uniform wrapping can be performed.

本発明の高周波加熱調理器によれば、加熱室内の空間を仕切り板によって仕切り板上方の空間とそれ以外の空間とに分割して、加熱調理に用いる加熱室内の空間を狭めることができる。この狭められた空間に蒸気を供給することで、加熱能力を高めることなく加熱による温度変化に対する応答性が高められる。また、予熱手段により加熱室内の雰囲気温度を上昇させてから蒸気を加熱室へ供給することで、加熱室壁面等での結露が抑制され、均一かつ高効率で被加熱物を加熱することができる。   ADVANTAGE OF THE INVENTION According to the high frequency heating cooker of this invention, the space in a heating room used for heating cooking can be narrowed by dividing the space in a heating room into the space above a partition plate and the other space by a partition plate. By supplying steam to the narrowed space, the responsiveness to a temperature change due to heating can be increased without increasing the heating capacity. In addition, by supplying steam to the heating chamber after raising the ambient temperature in the heating chamber by the preheating means, dew condensation on the wall of the heating chamber or the like is suppressed, and the object to be heated can be heated uniformly and efficiently. .

以下、本発明に係る高周波加熱装置の好適な実施の形態について、図面を参照して詳細に説明する。
（第１の実施の形態）
図１は本発明の第１の実施の形態に係る高周波加熱調理器の開閉扉を開けた状態を示す正面図、図２は図１のＡ−Ａ断面における概念的な矢視図、図３は高周波加熱調理器の制御ブロック図である。
この高周波加熱調理器１００は、被加熱物を収容する加熱室１１に高周波（マイクロ波）と蒸気との少なくともいずれかを供給して被加熱物を加熱処理する加熱調理器であって、図１に示すように、仕切り板としての受け皿２１によって加熱室１１内空間が上方空間と下方空間とに二分割されていることを特徴とするものである。この調理器１００は、さらに高周波を発生するマグネトロンからなる高周波発生部１３と、加熱室１１内で蒸気を発生する蒸気発生部１５と、加熱室１１の上方に配置された予熱手段としての上部加熱ヒータ１７と、加熱室１１の底面から所定間隔を隔てて、上方に配設され、被加熱物を載置する受け皿２１とを有する。 Hereinafter, preferred embodiments of a high-frequency heating device according to the present invention will be described in detail with reference to the drawings.
(First Embodiment)
FIG. 1 is a front view showing a state in which an opening / closing door of a high-frequency heating cooker according to a first embodiment of the present invention is opened, FIG. 2 is a conceptual arrow view taken along the line AA of FIG. FIG. 3 is a control block diagram of the high-frequency heating cooker.
This high-frequency heating cooker 100 is a heating cooker that supplies at least one of high-frequency (microwave) and steam to a heating chamber 11 that accommodates an object to be heated and heats the object to be heated. As shown in (1), the space inside the heating chamber 11 is divided into an upper space and a lower space by a tray 21 as a partition plate. The cooking device 100 further includes a high-frequency generation unit 13 formed of a magnetron that generates a high frequency, a steam generation unit 15 that generates steam in the heating chamber 11, and an upper heating unit disposed above the heating chamber 11 as a preheating unit. The heater 17 includes a heater 17 and a tray 21 which is disposed above the heating chamber 11 at a predetermined distance from the bottom of the heating chamber 11 and on which an object to be heated is placed.

高周波発生部１３からの高周波は、回転駆動される高周波撹拌用のスタラー羽根２３によって加熱室１１の全体に分散される。また、受け皿２１は、加熱室１１の側壁面１１ａ，１１ｂに形成した係止部２５に支持され、仕切り板としても作用する。この係止部２５は、加熱室１１の複数の高さ位置で受け皿２１を支持可能に複数段設けてある。係止部２５に受け皿２１を係止させることで、加熱室１１の空間は上下２分割される。そして、蒸気発生部１５には、加熱室１１の側方に設けた給水タンク２７から水が供給される構成となっている。   The high frequency from the high frequency generator 13 is dispersed throughout the heating chamber 11 by a rotatably driven high frequency stirring stirrer blade 23. Further, the receiving tray 21 is supported by a locking portion 25 formed on the side wall surfaces 11a and 11b of the heating chamber 11, and also functions as a partition plate. The locking portions 25 are provided in a plurality of stages so that the receiving tray 21 can be supported at a plurality of height positions of the heating chamber 11. By locking the receiving tray 21 to the locking portion 25, the space of the heating chamber 11 is divided into upper and lower portions. Then, water is supplied to the steam generating section 15 from a water supply tank 27 provided on the side of the heating chamber 11.

蒸気発生部１５は、加熱室１１の底面奥側で、少なくとも一方の隅部に設けてある。本実施形態においては、一例として奥側両隅に２基配置した構成を示しているが、片側に１基配置した構成であってもよい。また、図２に示すように、蒸気発生部１５から発生した蒸気を、受け皿２１より加熱室の上方空間内に供給する蒸気搬送手段としての蒸気パイプ２９を、蒸気発生部１５と加熱室１１の上方、即ち、加熱室１１の空間を受け皿２１により２分割した上方の空間とを連通させることで、蒸気搬送路として設けている。加熱室１１の奥側側面には、サーミスタや赤外線センサ等の温度センサ３１が取り付けられ、加熱室１１の温度を測定する。   The steam generating section 15 is provided at at least one corner on the back side of the bottom surface of the heating chamber 11. In the present embodiment, as an example, a configuration in which two units are disposed at both rear corners is shown, but a configuration in which one unit is disposed on one side may be employed. Further, as shown in FIG. 2, a steam pipe 29 as a steam conveying means for supplying the steam generated from the steam generation unit 15 from the tray 21 into the space above the heating chamber is provided between the steam generation unit 15 and the heating chamber 11. The upper part, that is, the space of the heating chamber 11 is communicated with the upper part of the space divided into two parts by the tray 21, thereby providing a steam conveying path. A temperature sensor 31 such as a thermistor or an infrared sensor is attached to a rear side surface of the heating chamber 11 to measure the temperature of the heating chamber 11.

なお、本発明の高周波加熱調理器１００には、図３に示すように、加熱室１１内の空気を撹拌・循環させる循環ファン３３や、加熱室１１内を循環する空気を加熱するコンベクションヒータ３５からなる室内気加熱部３７を取り付けてもよい。これら各部の動作は、マイクロプロセッサを備えてなる制御部３９からの制御指令により行われる。   As shown in FIG. 3, the high-frequency heating cooker 100 of the present invention includes a circulation fan 33 for stirring and circulating the air in the heating chamber 11 and a convection heater 35 for heating the air circulating in the heating chamber 11. May be attached. The operations of these units are performed according to control commands from a control unit 39 including a microprocessor.

また、開閉扉４１に設けられる操作パネル９１には、加熱の開始を指示するスタートスイッチ９３、予め用意されている調理プログラムを選定する自動調理スイッチ９７等の種々の操作スイッチが設けられている。
そして、制御部３９は、商用電源に接続される電源部４０から電力供給されており、高周波発生部１３、上部加熱ヒータ１７、蒸気発生部１５等の加熱電力が許容電力値を超えないように、各部への電力配分を制御している。 The operation panel 91 provided on the opening / closing door 41 is provided with various operation switches such as a start switch 93 for instructing start of heating and an automatic cooking switch 97 for selecting a prepared cooking program.
The control unit 39 is supplied with power from a power supply unit 40 connected to a commercial power supply, and controls the heating power of the high-frequency generation unit 13, the upper heater 17, the steam generation unit 15, and the like so as not to exceed an allowable power value. , And controls power distribution to each unit.

加熱室１１は、前面開放の箱形の本体ケース１０内部に形成されており、本体ケース１０の前面には、加熱室１１の被加熱物取出口を開閉する透光窓４１ａ付きの開閉扉４１が開閉自在に取り付けられている。   The heating chamber 11 is formed inside a box-shaped main body case 10 having an open front. On the front surface of the main body case 10, an opening / closing door 41 having a light-transmitting window 41 a for opening and closing a heated object outlet of the heating chamber 11. Is attached to open and close freely.

高周波発生部１３は、加熱室１１の下方空間に配置されており、加熱室１１底面の略中央の、マグネトロンより発生した高周波を受ける位置に高周波分散手段として例えば、スタラー羽根（２３）や回転アンテナなどを設けている。これら高周波発生部１３やスタラー羽根２３は、加熱室１１の底部に限らず、加熱室１１の他の面側に設けることもできる。なお高周波分散手段は回転駆動されるものでもよいし高周波反射体の組み合わせ等を用いるようにしてもよい。   The high-frequency generator 13 is disposed in a space below the heating chamber 11, and is disposed at substantially the center of the bottom of the heating chamber 11 at a position for receiving the high frequency generated from the magnetron, for example, as a high-frequency dispersing unit such as a stirrer blade (23) or a rotating antenna And so on. The high-frequency generator 13 and the stirrer blades 23 are not limited to the bottom of the heating chamber 11 but may be provided on another surface of the heating chamber 11. The high-frequency dispersion means may be driven by rotation, or a combination of high-frequency reflectors may be used.

蒸気発生部１５は、図２に示すように、加熱により蒸気を発生する水溜凹所４５ａを有した加熱ブロック４５と、該加熱ブロック４５の水溜凹所４５ａを覆い蒸気パイプ２９へ発生した蒸気を導入する蒸気ダクト４７とを有する。   As shown in FIG. 2, the steam generating unit 15 includes a heating block 45 having a water recess 45 a for generating steam by heating, and a steam generated in the steam pipe 29 covering the water recess 45 a of the heating block 45. And a steam duct 47 to be introduced.

ここで、本高周波加熱調理器１００における蒸気発生の基本原理を簡単に説明する。
図４に高周波加熱調理器の蒸気発生の基本原理を表す説明図を示した。
これによれば、給水タンク２７に貯留された水は、逆止弁４９を通して給水管５１に供給される。給水管５１の中間部配管５１ａでは、加熱ブロック４５のシーズヒータ５３からの発生熱が伝熱されることで、中間部配管５１ａ内の水が加熱される。そして、加熱された水の一部は、湯になる際に沸騰して気泡を発生し、急激に体積膨張する。このとき、給水管５１の給水タンク２７側の逆止弁４９は閉止され、給水タンク２７側への逆流が阻止される。従って、体積膨張した水は吐出側配管５５へ間欠的に供給される。これにより、吐出側配管５５内では水位が上昇し、上部に形成されたエア抜き孔から余分な蒸気が排出されると共に、加熱された水が吐出口５９から加熱ブロック４５の水溜凹所４５ａに間欠的に供給される。 Here, the basic principle of steam generation in the high frequency heating cooker 100 will be briefly described.
FIG. 4 is an explanatory view showing the basic principle of steam generation in a high-frequency heating cooker.
According to this, the water stored in the water supply tank 27 is supplied to the water supply pipe 51 through the check valve 49. In the middle pipe 51a of the water supply pipe 51, the heat generated from the sheath heater 53 of the heating block 45 is transferred, so that the water in the middle pipe 51a is heated. Then, a part of the heated water boils when it becomes hot water, generates bubbles, and rapidly expands in volume. At this time, the check valve 49 on the water supply tank 27 side of the water supply pipe 51 is closed, and backflow to the water supply tank 27 side is prevented. Therefore, the volume-expanded water is intermittently supplied to the discharge-side pipe 55. As a result, the water level rises in the discharge-side pipe 55, excess steam is discharged from the air vent hole formed in the upper part, and heated water flows from the discharge port 59 to the water sump recess 45a of the heating block 45. Supplied intermittently.

一方、水溜凹所４５ａもシーズヒータ５３により加熱されており、滴下された加熱水はここで蒸発して蒸気ダクト４７内に充満する。そして、充満した蒸気は蒸気パイプ２９を通じて加熱室１１の上方から供給される。つまり、加熱ブロック４５のシーズヒータ５３の発熱により、水溜凹所４５ａへ加熱した水を供給すると共に、水溜凹所４５ａを加熱する構成となっている。   On the other hand, the water reservoir recess 45 a is also heated by the sheath heater 53, and the dropped heated water evaporates here and fills the steam duct 47. Then, the filled steam is supplied from above the heating chamber 11 through the steam pipe 29. That is, by the heat generated by the sheath heater 53 of the heating block 45, the heated water is supplied to the water recess 45a and the water recess 45a is heated.

上記の蒸気発生を実現するための具体的な構成例を、以下に詳細に説明する。
図５に加熱ブロックの外観斜視図を示した。（ａ）は上面側で（ｂ）は裏面側である。
加熱ブロック４５は、軽量で熱伝導性の高いアルミのダイカスト成形品としている。加熱ブロック４５には、本体６１の内部Ｕ字形のシーズヒータ（蒸発皿加熱ヒータ）５３が埋設されており、このシーズヒータ５３に沿った上面側に水溜凹所４５ａが形成され、下面側に給水管５１の中間部配管５１ａを被覆する加熱部４５ｂが形成されている。これら水溜凹所４５ａ及び加熱部４５ｂはダイカストにより一体に形成されており、接続面等が存在しないため、高効率でシーズヒータ５３の発熱を伝導可能にしている。 A specific configuration example for realizing the above-described steam generation will be described in detail below.
FIG. 5 shows an external perspective view of the heating block. (A) is the top side and (b) is the back side.
The heating block 45 is a light-weight, highly heat-conductive aluminum die-cast product. A U-shaped sheathed heater (evaporating dish heater) 53 inside the main body 61 is embedded in the heating block 45, and a water reservoir recess 45 a is formed on the upper surface side along the sheathed heater 53, and water is supplied on the lower surface side. A heating section 45b that covers the intermediate pipe 51a of the pipe 51 is formed. The water recess 45a and the heating portion 45b are integrally formed by die casting, and have no connection surface or the like, so that heat generation of the sheath heater 53 can be conducted with high efficiency.

また、水溜凹所４５ａの下側に位置する収容穴６３には、温度を検知するサーミスタ（蒸発皿温度センサ）６５が挿入されて、本体６１のシーズヒータ５３付近の温度を測定する。水溜凹所４５ａの一端側には開口孔６７が形成されて、前記吐出口５９からの水が水溜凹所４５ａ内に供給される。なお、シーズヒータ５３や加熱部４５ｂ等の形状や取り付け位置等は、必要とする加熱量や高周波加熱調理器１００の筐体内への設置スペース等に応じて適宜変更され得るものである。なお、上記シーズヒータ５３に代えて、線ヒータ、セラミックヒータ等の他種類のヒータを用いることも可能である。   A thermistor (evaporating dish temperature sensor) 65 for detecting the temperature is inserted into the accommodation hole 63 located below the water sump recess 45 a to measure the temperature near the sheath heater 53 of the main body 61. An opening 67 is formed at one end of the water recess 45a, and water from the discharge port 59 is supplied into the water recess 45a. In addition, the shape, mounting position, and the like of the sheath heater 53 and the heating unit 45b can be appropriately changed according to the required amount of heating, the installation space of the high-frequency heating cooker 100 in the housing, and the like. Note that, instead of the sheath heater 53, other types of heaters such as a line heater and a ceramic heater can be used.

図６に加熱室内における蒸気発生部１５の概略的な（ａ）分解図、（ｂ）組立図を示した。
加熱室１１の底面から突出させて形成した段付き部６９の下側に、前述した加熱ブロック４５が水溜凹所４５ａを上方に向けて配設し、さらに水溜凹所４５ａの上方には、水溜凹所４５ａを覆う蓋体７１と、蓋体７１の開口孔７１ａに接続され加熱室１１の奥面に形成した蒸気取り出し口７３に向けて開口している中空構造の蒸気ダクト４７を着脱可能に取り付けている。蒸気取り出し口７３に導入された蒸気は、図２に示すように蒸気パイプ２９を通じて加熱室１１の上方の空間に供給される。なお、この蒸気ダクト４７を取り外せば、加熱室１１の底面側から蒸気を供給する構成にできる。 FIG. 6 is a schematic (a) exploded view and (b) an assembly view of the steam generating section 15 in the heating chamber.
The heating block 45 is disposed below the stepped portion 69 formed so as to protrude from the bottom surface of the heating chamber 11 so that the water reservoir recess 45a faces upward. A lid 71 that covers the recess 45a and a hollow-structured steam duct 47 that is connected to the opening 71a of the lid 71 and that opens toward a steam outlet 73 formed in the back surface of the heating chamber 11 are detachable. Attached. The steam introduced into the steam outlet 73 is supplied to a space above the heating chamber 11 through a steam pipe 29 as shown in FIG. If the steam duct 47 is removed, a configuration can be adopted in which steam is supplied from the bottom side of the heating chamber 11.

加熱ブロック４５の水溜凹所４５ａの表面は、珪酸（ＳｉＯ2）等を含む親水材料で処理していることで、水が球状になることなく、大きな接触面積が確保でき、より多くの蒸気を発生させやすくしている。一方、蓋体７１や蒸気ダクト４７の表面をフッ素等の疎水材料で処理することで、蒸発時の蒸発残渣等、汚れの付着を抑制することができ、また、仮に汚れが付着しても簡単に除去できるようにしている。例えば、蒸気発生の過程では、水分中のカルシウムやマグネシウム、塩素化合物等が濃縮されて水溜凹所４５ａ底部に沈殿固着することがあるが、水溜凹所４５ａを布等で拭き取るだけで、きれいにこのような汚れを払拭することができる。また、前述の蒸気ダクト４７は着脱自在であるので、清掃作業を容易にすることができる。 The surface of the water recess 45a of the heating block 45 is treated with a hydrophilic material containing silicic acid (SiO 2 ), so that a large contact area can be secured without causing water to be spherical, and more steam can be generated. It is easy to generate. On the other hand, by treating the surfaces of the lid 71 and the steam duct 47 with a hydrophobic material such as fluorine, it is possible to suppress the adhesion of dirt such as evaporation residues at the time of evaporation. So that it can be removed. For example, in the process of steam generation, calcium, magnesium, chlorine compounds and the like in the water may be concentrated and settle and fix on the bottom of the water recess 45a. Such dirt can be wiped off. Further, since the above-mentioned steam duct 47 is detachable, the cleaning operation can be facilitated.

ここで、図１に示す給水タンク２７から加熱ブロック４５までの給水経路を説明するため、図７に図１のＢ方向矢視図を示した。前述の蒸気発生原理を説明した図４と同様であるが、給水タンク２７の水は、逆止弁４９を通して給水管５１に供給され、加熱ブロック４５の加熱部４５ｂで加熱されて吐出側配管５５に供給される。そして、加熱された水が吐出口５９から加熱ブロック４５の水溜凹所へ間欠的に供給される。なお、給水管５１としては、特に伝熱を受ける加熱部４５周辺では、銅パイプ等、熱伝導度の高い材質が好適に用いられる。   Here, in order to explain the water supply path from the water supply tank 27 shown in FIG. 1 to the heating block 45, FIG. 7 is a view taken in the direction of arrow B in FIG. Although the same principle as that of the above-described steam generation is explained with reference to FIG. Supplied to Then, the heated water is intermittently supplied from the discharge port 59 to the water reservoir recess of the heating block 45. In addition, as the water supply pipe 51, a material having high thermal conductivity, such as a copper pipe, is preferably used particularly in the vicinity of the heating section 45 that receives heat transfer.

次に、図１に示す受け皿２１を説明する。図８に受け皿の外観斜視図、図９に図８のＣ−Ｃ断面図を示した。
受け皿２１は、加熱室１１に対して複数の高さ位置に容易に脱着自在とされており、被加熱物の載置面となる金属板７５と、金属板７５に対峙してあるいは接触して配置される高周波発熱体７７と、高周波発熱体７７を金属板７５に固定すると共に加熱室１１側の係止部２５（図１参照）と係合する固定部材７９とを有する。 Next, the tray 21 shown in FIG. 1 will be described. FIG. 8 is an external perspective view of the tray, and FIG. 9 is a cross-sectional view taken along line CC of FIG.
The receiving tray 21 is easily detachable at a plurality of height positions with respect to the heating chamber 11, and is opposed to or in contact with the metal plate 75 serving as a mounting surface for the object to be heated. A high-frequency heating element 77 is provided, and a fixing member 79 that fixes the high-frequency heating element 77 to the metal plate 75 and engages with the locking portion 25 (see FIG. 1) on the heating chamber 11 side.

金属板７５は、アルミメッキ鋼板からなり、表面に波状の凹凸を設けた水溜可能な深さを有している。アルミメッキ鋼板の表側面には防汚効果の高いフッ素塗装を施し、裏側面には吸熱効果の高い黒色耐熱塗装を施している。
高周波発熱体７７は、金属板７５側とは反対側の面に、高周波を吸収して発熱する窒化物及び硼化物等の誘電体材料からなる高周波吸収膜８１を基体８３に密着させて形成している。基体８３は、セラミック材又は耐熱樹脂材からなり、蓄熱効果の高い材料が好適に用いられる。
固定部材７９は、受け皿２１の加熱室挿入方向に沿って両脇側に設けられた絶縁体からなり、加熱室１１との間に間隙を形成することで、高周波加熱時におけるスパークの発生を防止している。この間隙を大きくし、加熱室の下方空間の蒸気を上方空間に導くようにすれば、加熱室内壁をとおって、より効率よく蒸気を上方空間に導くことができる。 The metal plate 75 is made of an aluminum-plated steel plate, and has a depth in which water can be pooled with wavy irregularities on the surface. The front side of the aluminum-plated steel sheet is coated with fluorine, which has a high antifouling effect, and the back side is coated with black heat-resistant, which has a high endothermic effect.
The high-frequency heating element 77 is formed by adhering a high-frequency absorbing film 81 made of a dielectric material such as nitride and boride, which absorbs high-frequency waves and generates heat, to the surface opposite to the metal plate 75 side, in close contact with the base 83. ing. The base 83 is made of a ceramic material or a heat-resistant resin material, and a material having a high heat storage effect is preferably used.
The fixing member 79 is made of an insulator provided on both sides along the direction in which the receiving pan 21 is inserted into the heating chamber. By forming a gap between the fixing chamber 79 and the heating chamber 11, spark generation during high-frequency heating is prevented. are doing. If the gap is made large and the steam in the space below the heating chamber is guided to the upper space, the steam can be more efficiently guided to the upper space through the wall of the heating chamber.

また、図９（ａ）、（ｂ）に示すように、金属板７５に凸部７５ａを形成したり、金属板７５自体を波形として凹凸を形成することで、高周波吸収膜８１と金属板７５との距離が遠くなり、これにより、高周波吸収膜８１上における電界強度が高くなり、高周波吸収膜８１上での発熱量が増加する効果が得られる。なお、高周波発熱体７７としては、裏面に高周波吸収体膜８１を設けた構成以外にも、高周波吸収体自身が高周波で発熱するように、セラミックなどの誘電体で形成してもよい。またフェライトゴムなど、セラミック粉末をゴムに混ぜ込んだセラミックゴムなどで構成してもよい。   Also, as shown in FIGS. 9A and 9B, the high-frequency absorption film 81 and the metal plate 75 are formed by forming a convex portion 75a on the metal plate 75 or forming irregularities by using the metal plate 75 itself as a waveform. , The electric field strength on the high-frequency absorbing film 81 is increased, and the effect of increasing the amount of heat generated on the high-frequency absorbing film 81 is obtained. In addition to the configuration in which the high-frequency absorber film 81 is provided on the back surface, the high-frequency heater 77 may be formed of a dielectric such as ceramic so that the high-frequency absorber itself generates heat at a high frequency. Further, it may be composed of ceramic rubber in which ceramic powder is mixed with rubber, such as ferrite rubber.

金属板７５として、金属製のアルミメッキ鋼板を用いたが、表面で高周波を反射するものであればよく、金属板７５に代えてセラミック質の基材に金属メッキや金属蒸着等で高周波の反射層を設けたもの等も利用でき、さらには、ステンレス、アルミニウム及びア
ルミニウム合金、亜鉛メッキ鋼板、アルミ亜鉛合金メッキ鋼板や銅メッキ鋼板などの各種メッキ鋼板、冷間圧延鋼板、クラッド材等も用いることができる。また、高周波吸収膜８１として窒化物や硼化物を用いたが、酸化スズ、酸化インジウム等の金属酸化物、及び複合酸化物等、他の誘電体材料も用いることができる。なお、受け皿２１としては、上記構成のものに限らず、基本的に被加熱物Ｍの結露による水受けが可能な平板であればよい。 Although a metal aluminum-plated steel plate was used as the metal plate 75, any material that reflects high frequencies on the surface may be used. Instead of the metal plate 75, high-frequency reflection is performed on a ceramic substrate by metal plating or metal deposition. It is also possible to use those provided with layers, and further use various kinds of plated steel sheets such as stainless steel, aluminum and aluminum alloys, galvanized steel sheets, aluminum zinc alloy plated steel sheets and copper plated steel sheets, cold-rolled steel sheets, clad materials and the like. Can be. Further, although nitride or boride is used as the high-frequency absorption film 81, other dielectric materials such as metal oxides such as tin oxide and indium oxide, and composite oxides can be used. In addition, the receiving tray 21 is not limited to the above-described configuration, and may be a flat plate that can receive water due to dew condensation on the object to be heated M.

次に、本発明に係る高周波加熱調理器１００の作用を説明する。
例えば、蒸気加熱を行いながらグリル加熱を行なうには、まず、加熱室１１内に受け皿２１を取り付けて、被加熱物Ｍを受け皿２１上に載置する。そして、高周波加熱調理器１００の開閉扉４１を閉じ、操作パネル９１（図３参照）に備わる各種のスイッチを操作して、所望の加熱モードを設定した後、スタートスイッチ９３を押下する。また、自動調理モードで加熱する場合には、記憶部９５に予め用意されている調理プログラムを、自動調理スイッチ９７の押下等により選択した後、スタートスイッチ９３を押下する。 Next, the operation of the high-frequency heating cooker 100 according to the present invention will be described.
For example, in order to perform grill heating while performing steam heating, first, the pan 21 is mounted in the heating chamber 11 and the object to be heated M is placed on the pan 21. Then, the user closes the open / close door 41 of the high-frequency heating cooker 100, operates various switches provided on the operation panel 91 (see FIG. 3), sets a desired heating mode, and then presses the start switch 93. In the case of heating in the automatic cooking mode, a cooking program prepared in advance in the storage unit 95 is selected by pressing the automatic cooking switch 97 or the like, and then the start switch 93 is pressed.

ここで、図１０に受け皿上に載置した被加熱物を、加熱室内に高周波及び蒸気を供給して加熱処理する様子の一例を概念的に示した。
この例を説明すると、まず、加熱室１１の上方位置に受け皿２１を取り付けて、受け皿２１の上に被加熱物Ｍを載せる。そして、上部加熱ヒータ１７を発熱させることで、受け皿２１上の被加熱物Ｍが輻射熱Ｑ１によって加熱処理される。
一方、高周波発生部１３から高周波を発生させ、スタラー羽根２３の回転により加熱室１１内に拡散供給する。これにより、受け皿２１の高周波吸収膜８１が発熱して高周波発熱体７７が加熱され、その熱Ｑ２が金属板７５を介して被加熱物に伝播する。また、発生した高周波の一部Ｑ３は、加熱室１１の内壁面と受け皿２１との間の間隙を抜けて受け皿２１の上方空間に入り、被加熱物Ｍを高周波加熱する。ただし、加熱対象によっては、被加熱物Ｍに対する高周波加熱を積極的に行なわないこともあり、Ｑ３の熱量は小さく設定される。つまり、高周波発熱体７７の発熱により被加熱物Ｍの温度を上げる一方、高周波発熱体７７の加熱用に用いる高周波は、受け皿２１の金属板７５により遮蔽して、被加熱物Ｍには供給されないようにする。なお、高周波が加熱室底面から供給される以外にも、給電口が受け皿２１よりも下側の加熱室側面に配設された場合でも、同様に高周波を遮蔽することができる。 Here, FIG. 10 conceptually shows an example of a state in which the object to be heated placed on the tray is subjected to heat treatment by supplying high frequency and steam into the heating chamber.
To describe this example, first, the pan 21 is attached to a position above the heating chamber 11, and the object to be heated M is placed on the pan 21. Then, by causing the upper heater 17 to generate heat, the object to be heated M on the tray 21 is heated by the radiant heat Q1.
On the other hand, a high frequency is generated from the high frequency generator 13 and diffused and supplied into the heating chamber 11 by the rotation of the stirrer blade 23. As a result, the high-frequency absorbing film 81 of the receiving tray 21 generates heat and the high-frequency heating element 77 is heated, and the heat Q2 is transmitted to the object to be heated via the metal plate 75. In addition, part of the generated high frequency Q3 passes through the gap between the inner wall surface of the heating chamber 11 and the tray 21 and enters the space above the tray 21 to heat the object M to be heated by high frequency. However, depending on the object to be heated, the high-frequency heating of the object to be heated M may not be actively performed, and the heat amount of Q3 is set to be small. That is, while the temperature of the object to be heated M is raised by the heat generated by the high-frequency heating element 77, the high frequency used for heating the high-frequency heating element 77 is shielded by the metal plate 75 of the tray 21 and is not supplied to the object to be heated M. To do. In addition to the high frequency being supplied from the bottom of the heating chamber, the high frequency can be similarly shielded even when the power supply port is provided on the side of the heating chamber below the tray 21.

さらに、蒸気発生部１５からの蒸気が蒸気パイプ２９を通じて蒸気吹き出し口８５から加熱室の上方空間８７に供給される。この蒸気Ｑ４が被加熱物Ｍに当たり、熱交換が行われることで被加熱物Ｍが加熱される。
以上の、輻射熱Ｑ１、高周波発熱体７７からの熱Ｑ２、高周波の一部Ｑ３、蒸気Ｑ４により被加熱物Ｍが効率良く加熱処理される。また、各熱源Ｑ１〜Ｑ４を適宜選択的に組み合わせて、シーケンシャルに加熱することで、被加熱物Ｍの加熱目的に応じた最適な加熱処理が可能となる。また、前述の受け皿２１の金属板７５による高周波の遮蔽効果により、被加熱物Ｍの蒸し調理時に、高周波による過剰な加熱が抑止され、本格的な蒸し調理が可能となる。
なお、図示しない室内気加熱部のコンベクションヒータを発熱させることにより、さらに被加熱物Ｍを均一に高温加熱することもできる。 Further, the steam from the steam generator 15 is supplied from the steam outlet 85 to the upper space 87 of the heating chamber through the steam pipe 29. The steam Q4 hits the object to be heated M, and heat exchange is performed to heat the object to be heated M.
The object to be heated M is efficiently heated by the radiant heat Q1, the heat Q2 from the high frequency heating element 77, a part of the high frequency Q3, and the steam Q4. In addition, by appropriately selectively combining the heat sources Q1 to Q4 and sequentially heating the heat sources Q1, Q2, it is possible to perform an optimal heating process in accordance with the purpose of heating the object to be heated M. In addition, due to the high-frequency shielding effect of the metal plate 75 of the tray 21, the excessive heating by the high-frequency wave during the steaming of the object to be heated M is suppressed, so that the steaming can be performed in earnest.
By heating the convection heater of the indoor air heating unit (not shown), the object to be heated M can be further heated uniformly at a high temperature.

このように、加熱調理に寄与する加熱室１１の容積を受け皿２１により分割して小さくすることにより、蒸気をいち早く充満させることができ、また、加熱室１１の上方空間における庫内温度も蒸気の供給によって蒸気温度に近い温度（例えば１００℃）まで急峻に立ち上がる。従って、高周波加熱調理器１００の加熱開始後の早い時期から加熱室１１内を蒸し調理可能な状態にでき、加熱調理時間を大幅に短縮することができる。また、蒸気発生時に上部加熱ヒータ１７を用いて加熱室１１の温度を上げることで、加熱室１１の結露が防止される。また、加熱室１１内の受け皿２１の高さを変更することにより、実質的な蒸気温度を調整することができ、蒸気による加熱力の強弱を温度制御することなく簡易に変更することができる。   In this manner, by dividing the volume of the heating chamber 11 contributing to the heating cooking by the receiving tray 21 and reducing the volume, the steam can be quickly filled, and the temperature inside the chamber in the space above the heating chamber 11 also decreases. The supply sharply rises to a temperature close to the steam temperature (for example, 100 ° C.). Accordingly, the inside of the heating chamber 11 can be steamed and cooked from an early stage after the start of heating of the high-frequency heating cooker 100, and the heating and cooking time can be greatly reduced. In addition, dew condensation in the heating chamber 11 is prevented by raising the temperature of the heating chamber 11 by using the upper heater 17 when steam is generated. Further, by changing the height of the tray 21 in the heating chamber 11, the substantial steam temperature can be adjusted, and the strength of the heating power by the steam can be easily changed without controlling the temperature.

また、加熱ブロック４５のサーミスタ６５や加熱室内の温度を検出する温度センサ３１からの検出温度に応じて、制御部３９が蒸気発生量やヒータ加熱量をフィードバック制御して、加熱室１１内の温度や蒸気量を適切に設定することにより、温度管理の難しい卵料理等を容易に行なうことができる。
そして、蒸気発生部１５からの蒸気を加熱室１１外に配置した蒸気パイプ２９を通じて加熱室１１の上方空間へ供給しているので、蒸気パイプ２９等の配管部材に対して調理物の付着汚れがなく、清掃が容易な構成となっている。
さらに、本実施形態の高周波加熱調理器１００では、蒸気発生部１５を加熱室１１の底面隅部に２基備えているので、被加熱物の加熱内容に応じて発生させる蒸気量を可変にでき、蒸気を多量に必要とするもの、少量でよいもの等の切り分けができ、蒸気供給のパターンを所望の蒸気供給量になるように任意に設定することができる。 Further, the control unit 39 performs feedback control of the steam generation amount and the heater heating amount in accordance with the temperature detected by the thermistor 65 of the heating block 45 and the temperature sensor 31 for detecting the temperature in the heating chamber, thereby controlling the temperature in the heating chamber 11. By appropriately setting the amount of steam and the amount of steam, it is possible to easily perform egg cooking or the like in which temperature management is difficult.
Since the steam from the steam generator 15 is supplied to the space above the heating chamber 11 through the steam pipe 29 disposed outside the heating chamber 11, the adhered dirt of the cooked food on the pipe members such as the steam pipe 29. And easy to clean.
Further, in the high-frequency heating cooker 100 of the present embodiment, since two steam generating sections 15 are provided at the bottom corners of the heating chamber 11, the amount of steam to be generated can be varied according to the heating content of the object to be heated. The steam supply pattern can be arbitrarily set so that a desired amount of steam can be supplied.

ここで、上記の高周波加熱調理器１００を用いる加熱処理例を例示して、それぞれの加熱処理により発揮される本発明の顕著な効果を順次詳細に説明する。
図１１に蒸し調理の加熱パターン例を示した。この加熱パターンでは、加熱初期に、受け皿を加熱室１１に入れ、上部加熱ヒータ１７へ所定時間給電して予熱を行なう。予熱完了後、上部加熱ヒータ１７への給電を停止し蒸発皿加熱ヒータであるシーズヒータ５３へ給電する。これにより、蒸気が加熱室内に供給される。
このような加熱パターンにおける庫内温度の変化は、予熱後に開閉扉を開けて被加熱物を受け皿に載置する際、庫内温度は一旦下がるが、開閉扉を閉めると庫内温度は急峻に立ち上がり、蒸気の供給温度である１００℃付近でいち早く定常状態となる。発生した蒸気による結露は、殆どが被加熱物の表面に生じるもので、加熱室１１の壁面等へ熱が奪われることが少なくなっている。さらに、受け皿２１に溜まった結露水は、受け皿２１を取り外すことで簡単に除去することができる。 Here, the remarkable effects of the present invention exerted by each of the heat treatments will be sequentially described in detail by exemplifying a heat treatment example using the high-frequency heating cooker 100 described above.
FIG. 11 shows an example of a heating pattern for steam cooking. In this heating pattern, at the beginning of heating, the tray is placed in the heating chamber 11 and the upper heater 17 is supplied with power for a predetermined time to perform preheating. After the completion of the preheating, the power supply to the upper heater 17 is stopped, and the power is supplied to the sheath heater 53 which is the evaporating dish heater. Thereby, steam is supplied into the heating chamber.
The change in the internal temperature in such a heating pattern is such that when the open / close door is opened after preheating and the object to be heated is placed on the tray, the internal temperature decreases once, but when the open / close door is closed, the internal temperature sharply increases. As soon as the temperature rises and the temperature reaches about 100 ° C., which is the steam supply temperature, a steady state is established. Most of the dew due to the generated steam is generated on the surface of the object to be heated, and heat is less likely to be lost to the wall surface of the heating chamber 11 or the like. Furthermore, the dew water accumulated in the tray 21 can be easily removed by removing the tray 21.

一方、予熱を行なわずに蒸発皿加熱ヒータに給電した場合には、庫内温度の立ち上がりが遅く、調理時間が長くなる要因となる。また、庫内温度が低いために、発生した蒸気は加熱室１１の各面で多く結露して、結露水が加熱室底面等に溜まることとなる。この場合の加熱室底面や側面の結露水の除去には、多くの手間が掛かることになる。   On the other hand, when power is supplied to the evaporating dish heater without performing preheating, the rise in the internal temperature is slow, which causes a long cooking time. In addition, since the temperature in the refrigerator is low, generated steam is largely condensed on each surface of the heating chamber 11, and condensed water accumulates on the bottom surface of the heating chamber. In this case, removing the dew condensation water from the bottom and side surfaces of the heating chamber requires a lot of trouble.

さらには、被加熱物として、例えば葉菜を加熱した場合には、予熱を行なわないときには葉菜の緑色が鮮やかに現れず、予熱を行ったときには、加熱室内の雰囲気温度が１００℃以上となり、濃度の高い蒸気環境下においても短時間で効率よく蒸気加熱を行なうことができるため、葉菜を色鮮やかに仕上げることができる。   Furthermore, as an object to be heated, for example, when leaf vegetables are heated, green color of leaf vegetables does not appear vividly when preheating is not performed, and when preheating is performed, the ambient temperature in the heating chamber becomes 100 ° C. or higher, Since steam heating can be performed efficiently in a short period of time even in a high-concentration steam environment, leafy vegetables can be colorfully finished.

図１２に予熱の有無による被加熱物の温度の時間変化を示すグラフを示した。上記のように予熱を行った場合には、被加熱物の温度上昇速度が大きく、目標温度にまでいち早く到達して定常状態となる。一方、予熱を行なわない場合には、被加熱物の温度上昇は緩慢なものとなり、目標温度に到達するまでの時間が予熱を行った場合と比較して長く要する。   FIG. 12 is a graph showing the time change of the temperature of the object to be heated depending on the presence or absence of preheating. When preheating is performed as described above, the temperature rise rate of the object to be heated is large, and the temperature reaches the target temperature quickly and becomes a steady state. On the other hand, when the preheating is not performed, the temperature of the object to be heated rises slowly, and it takes a longer time to reach the target temperature than when the preheating is performed.

また、さらに加熱室内の雰囲気温度を上げたい場合には、図１３に示すように、上部加熱ヒータと蒸発皿加熱ヒータへの給電を交互に行なうとよく、好ましくは、上部加熱ヒータの要する電力と蒸発皿加熱ヒータの要する電力の合計が、高周波加熱調理器１００の許容電力値を超えない範囲で最大に設定すると、加熱効果を最大限に高められる。このような加熱パターンは、例えば根菜の加熱に好適に適用できる。また、この場合には、予熱を行なわなくとも加熱室内温度の立ち上がりが比較的早いが、調理時間短縮の上では予熱を行った方がよい。   In order to further increase the ambient temperature in the heating chamber, it is preferable to alternately supply power to the upper heater and the evaporating dish heater, as shown in FIG. When the total power required by the evaporating dish heater is set to a maximum value within a range that does not exceed the allowable power value of the high-frequency heating cooker 100, the heating effect can be maximized. Such a heating pattern can be suitably applied to, for example, heating of root vegetables. Also, in this case, the heating room temperature rises relatively quickly without performing preheating, but it is better to perform preheating in order to shorten the cooking time.

次に、グリル調理例を説明する。
図１４にグリル調理の加熱パターン例を示した。グリル調理では、受け皿２１に被加熱物Ｍを載置して、上部加熱ヒータ１７の発熱により被加熱物Ｍに焦げ目を付けるように加熱するものである。この場合には、図１４（ａ）に示すように、予熱後に本加熱を開始してからの被加熱物Ｍの温度は、上部表面では加熱により早く昇温するが、被加熱物Ｍの内部では加熱による昇温速度が遅く、表面と内部と温度差が加熱初期時には拡大する傾向にある。つまり、上部加熱ヒータ１７に近い被加熱物Ｍの上部表面は加熱により急激に昇温するが、被加熱物Ｍの熱容量によって、表面からの熱が内部にまで伝わるまでに時間がかかり、被加熱物Ｍの内部の温度上昇率が低くなる。 Next, an example of grill cooking will be described.
FIG. 14 shows an example of a heating pattern for grill cooking. In grill cooking, the object to be heated M is placed on the tray 21 and heated by the heat generated by the upper heater 17 so as to brown the object to be heated M. In this case, as shown in FIG. 14 (a), the temperature of the object to be heated M after the main heating is started after the preheating increases on the upper surface by heating, but the inside of the object to be heated M In this case, the rate of temperature rise by heating is slow, and the temperature difference between the surface and the interior tends to increase at the beginning of heating. In other words, the upper surface of the object to be heated M near the upper heater 17 rapidly rises in temperature due to heating, but it takes time for heat from the surface to be transferred to the inside due to the heat capacity of the object to be heated M. The temperature rise rate inside the object M decreases.

そこで、図１４（ｂ）に示すように、本加熱の途中で加熱室内に蒸気を供給することにより、供給される蒸気温度より低い被加熱物Ｍの表面で蒸気が結露して、この結露した水が蒸発することで気化熱が奪われ、被加熱物Ｍの表面の温度を一時的に下げる（ΔＴ1）ことができる。一方、被加熱物Ｍの内部では、熱容量が加熱室の空気よりも約２倍大きく被加熱物Ｍより高温の蒸気が被加熱物Ｍに当てられることで、被加熱物Ｍの内部に蒸気の熱量が効率良く伝熱されて、被加熱物Ｍの昇温を加速させる（ΔＴ2）ことができる。これにより、被加熱物Ｍの表面と内部との温度差を小さく抑えることができる。また、加熱室より温度の低い蒸気を加熱室内に供給することで、被加熱物Ｍの空気と接する表面層の温度を下げ、表面の過剰な焦げ付きを抑制して、内部の加熱不足を解消することができる。 Then, as shown in FIG. 14B, by supplying steam into the heating chamber during the main heating, the steam condenses on the surface of the object to be heated M lower than the supplied steam temperature. As the water evaporates, the heat of vaporization is deprived, and the temperature of the surface of the object to be heated M can be temporarily lowered (ΔT 1 ). On the other hand, inside the object to be heated M, steam having a heat capacity approximately twice as large as that of air in the heating chamber and having a higher temperature than the object to be heated M is applied to the object to be heated M. The heat is efficiently transferred, and the temperature rise of the object to be heated M can be accelerated (ΔT 2 ). Thereby, the temperature difference between the surface and the inside of the object to be heated M can be reduced. In addition, by supplying steam having a lower temperature than the heating chamber into the heating chamber, the temperature of the surface layer in contact with the air of the object to be heated M is reduced, excessive scorching of the surface is suppressed, and insufficient heating inside is eliminated. be able to.

上記のグリル調理の加熱パターンに加えて、高周波加熱を併用して加熱することもできる。図１５に高周波加熱を併用してグリル加熱を行なう加熱パターン例を示した。
この場合のグリル調理では、受け皿として高周波発熱体７７を（図９参照）備え、高周波により受け皿２１を加熱してこれを予熱としている。予熱後の本加熱では、高周波発生部のみ給電して加熱皿を加熱することで、被加熱物Ｍの底面側を加熱する。次に、高周波発生部への給電を停止して、上部加熱ヒータ１７への給電を開始し、被加熱物Ｍの上面を加熱する。そして、上部加熱ヒータ１７による加熱途中で蒸気発生部の蒸発皿加熱ヒータへ所定時間給電して、蒸気を加熱室へ供給する。なお、ここでも蒸発皿加熱ヒータへ給電するときは、上部加熱ヒータ１７への給電を停止して、電力の合計が高周波加熱調理器１００の許容電力値を超えないようにする。また、蒸気の供給は複数回繰り返し行っても良く、本加熱開始後の所定時間経過後に連続的に行っても良い。 In addition to the above-described heating pattern for grill cooking, heating can also be performed using high frequency heating. FIG. 15 shows an example of a heating pattern in which grill heating is performed in combination with high-frequency heating.
In grill cooking in this case, a high-frequency heating element 77 is provided as a pan (see FIG. 9), and the pan 21 is heated by high frequency to preheat it. In the main heating after the preheating, the heating plate is heated by supplying power only to the high-frequency generation unit, thereby heating the bottom surface side of the object to be heated M. Next, the power supply to the high frequency generator is stopped, and the power supply to the upper heater 17 is started to heat the upper surface of the object to be heated M. Then, during the heating by the upper heater 17, power is supplied to the evaporating dish heater of the steam generating section for a predetermined time to supply steam to the heating chamber. In this case, when supplying power to the evaporating dish heater, power supply to the upper heater 17 is stopped so that the total power does not exceed the allowable power value of the high-frequency cooking device 100. Further, the supply of steam may be repeatedly performed a plurality of times, or may be continuously performed after a lapse of a predetermined time after the start of the main heating.

ここで、加熱中に蒸気を供給することは、加熱調理の前半で供給することで、被加熱物Ｍに水分を与えてしっとり柔らかくする効果があり、加熱調理の後半で供給することで、被加熱物Ｍの内部の火通りを良くし、焼き色を均一化する効果がある。蒸気は、被加熱物Ｍの表面に凸凹があっても、この凹凸に蒸気が入り込むことで被加熱物Ｍに局所的な焼きムラを生じさせることを防ぎ、焼き具合を均一にできる。上部加熱ヒータ１７で加熱する場合では、凹凸の影となった部位に対して加熱量が小さくなるが、蒸気加熱を併用することでこのようなムラが生じにくくなる。さらには、上部加熱ヒータ１７の加熱室に対する加熱ムラ、即ち、加熱室中央では加熱量が多くなり、加熱室の隅部では加熱量が少なくなるというように、た加熱ムラにより、加熱室中央に位置する被加熱物が過剰に加熱されて焦げ、加熱室隅部に位置する被加熱物が加熱不十分な状態で仕上がることを未然に防止できる。   Here, supplying steam during heating has the effect of giving moisture to the object to be heated M and making it softer by supplying it in the first half of heating cooking. This has the effect of improving the passage of heat inside the heating object M and making the burn color uniform. Even if the surface of the object to be heated M has irregularities, it is possible to prevent the unevenness of the object to be heated M from being locally caused by the steam entering the unevenness, and to make uniform the degree of baking. In the case of heating by the upper heater 17, the amount of heating is reduced with respect to the shadowed portion of the unevenness, but such unevenness is less likely to occur by using steam heating in combination. Further, the heating unevenness of the upper heater 17 with respect to the heating chamber, that is, the heating amount increases at the center of the heating chamber and the heating amount decreases at the corners of the heating chamber. It is possible to prevent the heated object located in the corner of the heating chamber from being excessively heated and burnt, and the heated object located at the corner of the heating chamber from being finished in an insufficiently heated state.

また、このような加熱パターンは、例えば骨付き肉の加熱調理に用いることで、骨回りの火通りが良くなり、表面の焦げ付きを抑えて内部まで十分に加熱が行なえ、ふっくらとした柔らかい食感を持たせることができる。   In addition, such a heating pattern can be used, for example, for cooking meat-in-bone meat, so that the heat around the bones can be improved, the surface can be kept from burning, and the inside can be sufficiently heated. Can be provided.

以上説明した各加熱パターンは、図３に示す制御部３９に接続された記憶部９５に予め調理プログラムとして記憶しておき、操作パネル９１の自動調理スイッチ９７等の操作により任意に選定して実行する構成としてもよい。その場合にも、加熱室内の被加熱物の温度を加熱温度センサ３１により検出して、被加熱物の温度に合わせて、また、タイマ９９により加熱時間等の経過時間を計測して前述した各部の制御タイミングを設定する。蒸気発生のタイミングは、予め設定した調理プログラムに基づいて自動的に設定すること以外にも、操作パネル９１に蒸気供給スイッチ１０１を設け、この蒸気供給スイッチ１０１を押下した任意のタイミングで蒸気の供給を開始する構成としてもよい。これによれば、被加熱物Ｍの加熱調理の経過を開閉扉４１の透光窓４１ａを通して確認し、所望のタイミングで蒸気供給スイッチ１０１を押下することで、適切なタイミングでの蒸気供給が可能となり、加熱調理の失敗を確実になくすことができ、使い勝手が向上する。   Each heating pattern described above is stored in advance in the storage unit 95 connected to the control unit 39 shown in FIG. 3 as a cooking program, and is arbitrarily selected and executed by operating the automatic cooking switch 97 on the operation panel 91. The configuration may be such that Also in this case, the temperature of the object to be heated in the heating chamber is detected by the heating temperature sensor 31 and the elapsed time such as the heating time is measured by the timer 99 in accordance with the temperature of the object to be heated. Set the control timing of In addition to automatically setting the steam generation timing based on a preset cooking program, a steam supply switch 101 is provided on the operation panel 91, and steam is supplied at an arbitrary timing when the steam supply switch 101 is pressed. May be started. According to this, it is possible to supply the steam at an appropriate timing by checking the progress of the heating and cooking of the article to be heated M through the translucent window 41a of the opening / closing door 41 and pressing the steam supply switch 101 at a desired timing. As a result, the failure of cooking can be reliably eliminated, and the usability is improved.

上記説明した上部加熱ヒータ、蒸発皿加熱ヒータ、高周波発生部による加熱タイミングや加熱量は、被加熱物Ｍの種類、形状、重量、調理法等によって異なるものであり、各条件に応じて適宜設定されるものである。   The heating timing and amount of heating by the above-described upper heater, evaporating dish heater, and high-frequency generator differ depending on the type, shape, weight, cooking method, and the like of the object to be heated M, and are appropriately set according to each condition. Is what is done.

次に、上述した高周波加熱調理器１００に対する他の構成例について説明する。
図１６に蒸気発生部の加熱方式に対する他の構成例を示した。（ａ）は加熱ブロックと蒸発皿とを別体に形成した例、（ｂ）は蒸発皿を輻射熱で加熱する例を示している。図１６（ａ）の構成では、蒸発皿１０５の下側に加熱ブロック１０７を接触させて配置して、加熱ブロックをシーズヒータ１０９等の加熱手段により加熱して蒸発皿を加熱している。この構成によれば、蒸発皿１０５が加熱室底面と接続されるため、皿面の清掃が容易となる。
図１６（ｂ）に示す構成では、蒸発皿１０５の下側に輻射熱により加熱する管ヒータ１１１と、管ヒータ１１１の回りに反射板１１３とを設け、管ヒータ１１１の発熱を直接に又は反射板１１３により反射させて蒸発皿１０５を加熱している。この構成によれば、一層低コストで蒸発皿を加熱することができる。 Next, another configuration example of the high-frequency heating cooker 100 described above will be described.
FIG. 16 shows another configuration example for the heating method of the steam generating section. (A) shows an example in which the heating block and the evaporating dish are formed separately, and (b) shows an example in which the evaporating dish is heated by radiant heat. In the configuration shown in FIG. 16A, a heating block 107 is arranged in contact with the lower side of the evaporating dish 105, and the heating block is heated by a heating means such as a sheath heater 109 to heat the evaporating dish. According to this configuration, since the evaporating dish 105 is connected to the bottom surface of the heating chamber, the dish surface can be easily cleaned.
In the configuration shown in FIG. 16B, a tube heater 111 for heating by radiant heat below the evaporating dish 105 and a reflector 113 around the tube heater 111 are provided, and the heat generated by the tube heater 111 is directly or reflected by the reflector. The evaporating dish 105 is heated by being reflected by 113. According to this configuration, the evaporating dish can be heated at a lower cost.

図１７は蒸気発生部からの蒸気を加熱室内に供給する際の蒸気の供給方向を変更した一例としての概略構成図であり、（ａ）は側面図、（ｂ）は平面図である。
図１７（ａ）に示すように、蒸気発生部１５で発生した蒸気は、蒸気パイプ２９を通り、加熱室１１内の被加熱物Ｍに向けて供給される。つまり、蒸気パイプ２９の終端側２９ａの加熱室１１側への取り付け角度を、加熱室１１底面と平行な受け皿２１の載置面に対して斜め上方から蒸気を供給するように設定する。さらに、図１７（ｂ）に示すように、蒸気パイプ２９が２本ある場合に、それぞれが加熱室１１内の被加熱物Ｍに向けて蒸気を供給するように、蒸気パイプ２９の終端側２９ａを加熱室１１の中心に向けて配置する。なお、いずれの場合も被加熱物Ｍは受け皿２１の略中央部に載置されるものとする。 FIG. 17 is a schematic configuration diagram as an example in which the supply direction of the steam when the steam from the steam generation unit is supplied into the heating chamber is changed, (a) is a side view, and (b) is a plan view.
As shown in FIG. 17A, the steam generated in the steam generating section 15 is supplied to the object to be heated M in the heating chamber 11 through the steam pipe 29. That is, the mounting angle of the end side 29a of the steam pipe 29 to the heating chamber 11 side is set so as to supply steam from obliquely above the mounting surface of the tray 21 parallel to the bottom surface of the heating chamber 11. Further, as shown in FIG. 17 (b), when there are two steam pipes 29, the end side 29a of the steam pipe 29 is supplied so as to supply steam toward the object to be heated M in the heating chamber 11. To the center of the heating chamber 11. In any case, it is assumed that the object to be heated M is placed substantially at the center of the tray 21.

この構成によれば、蒸気が被加熱物Ｍに向けて供給されるため、被加熱物Ｍに蒸気の熱量が集中的に加えられ、被加熱物Ｍを一層早く加熱することができ、蒸気による被加熱物Ｍへの水分補給が確実となる。また、蒸気の加熱室１１壁面等への熱授受が減少するために、加熱効率が向上する。従って、高周波加熱調理器の調理性能が向上し、調理時間も短縮できる。さらに、蒸気が直接加熱室壁面に当たらないので、壁面の結露を低減できる。   According to this configuration, since the steam is supplied toward the object to be heated M, the calorie of the steam is intensively applied to the object to be heated M, and the object to be heated M can be heated more quickly. Water supply to the heated object M is ensured. In addition, since the transfer of heat to the wall of the heating chamber 11 by the steam is reduced, the heating efficiency is improved. Therefore, the cooking performance of the high-frequency heating cooker is improved, and the cooking time can be shortened. Furthermore, since the steam does not directly hit the wall of the heating chamber, dew condensation on the wall can be reduced.

図１８は加熱室内に蒸気パイプを設けた構成例を示す概略側面図である。この場合の蒸気パイプには、スケール、調理物の付着汚れを簡単に除去できるフッ素塗装等の表面処理、雑菌の繁殖を防止する抗菌処理等が施されている。この構成によれば、簡単な構造で蒸気を加熱室の上方空間に導くことができ、しかも清掃により簡単に汚れが除去できるので、使い勝手が向上する。   FIG. 18 is a schematic side view showing a configuration example in which a steam pipe is provided in a heating chamber. In this case, the steam pipe is subjected to a surface treatment such as a fluorine coating or the like which can easily remove the adhered dirt on the scale and the cooked food, and an antibacterial treatment for preventing the propagation of various bacteria. According to this configuration, the steam can be guided to the space above the heating chamber with a simple structure, and the dirt can be easily removed by cleaning, so that the usability is improved.

（第２の実施の形態）
図１９および２０は、本発明の第２の実施の形態の高周波加熱装置の概略構成断面図である。 (Second embodiment)
19 and 20 are schematic sectional views of the high-frequency heating device according to the second embodiment of the present invention.

図１９および図２０に示すように、高周波加熱装置は、被加熱物を収納する加熱室１１１、加熱室上部に設けられたヒータ加熱を行なう加熱手段としての上部ヒータ１１７と、加熱室底面に設けられた高周波を発生させ高周波加熱を行なう高周波発生部１１３と、加熱室底面奥即ち、背面の壁面に沿って設けられた蒸気発生部１１５と、裏面に高周波発熱体１７７を設け、被加熱物を載置する受け皿としての仕切り板１７７とを備えている。高周波発生部１１３から発信したマイクロ波は、下方より加熱室１１１内に供給される。そして、受け皿１２１は加熱室側面に設けたレール（図示せず）に載せて使用する。   As shown in FIGS. 19 and 20, the high-frequency heating device includes a heating chamber 111 for storing an object to be heated, an upper heater 117 provided at an upper portion of the heating chamber as heating means for performing heater heating, and a heating chamber provided at the bottom of the heating chamber. A high-frequency generator 113 for generating a high-frequency wave and performing high-frequency heating, a steam generator 115 provided along the back surface of the heating chamber, that is, along the wall surface on the back surface, and a high-frequency heating element 177 on the back surface are provided. And a partition plate 177 as a receiving tray to be placed. The microwave transmitted from the high frequency generator 113 is supplied into the heating chamber 111 from below. The tray 121 is used by being placed on a rail (not shown) provided on the side of the heating chamber.

図２０に示すように、蒸気発生部１１５は、加熱室底面に背面の壁面に沿って設けられている。加熱室内壁１１１には背面中央に突出部１１２が形成され、仕切り板との間に間隙Ｓを形成している。ここで、蒸気発生部１１５から発生した蒸気は図１９に示すように加熱室内壁１１１と仕切り板１２１の間隙Ｓを通って上昇して、仕切り板１２１と上部ヒータ１１７との間に高濃度の蒸気が溜まり構成になっている。高濃度の蒸気は仕切り板１２１に置いた被加熱物を包み込み、高周波加熱時には仕切り板１２１の裏面に高周波発熱体１７７を設け、下方より均一に供給されたマイクロ波により高周波発熱体１７７が均一に加熱されることで均一に焦げ目が付くことになる。また、高濃度に溜まった蒸気は１００℃の熱による包み焼き加熱をすることで被加熱物に均一加熱すると同時に均一に保水し、減水を最小限に抑えることが出来る。また、ヒータ加熱時はヒータの熱によって蒸気が過加熱状態になり、更に均一な包み焼き加熱を実現すると同時に蒸気を被加熱物周囲に十分に充満させ、無酸素状態に構成することで油の酸化を抑え、かつ塩分の塩角を取り除くことによってまろやかな味に仕上げることが可能になる。   As shown in FIG. 20, the steam generator 115 is provided on the bottom surface of the heating chamber along the rear wall surface. A protruding portion 112 is formed in the center of the back surface of the inner wall 111 of the heating chamber, and forms a gap S with the partition plate. Here, the steam generated from the steam generator 115 rises through the gap S between the heating chamber wall 111 and the partition plate 121 as shown in FIG. It is configured to store steam. The high-concentration steam wraps the object to be heated placed on the partition plate 121. At the time of high-frequency heating, a high-frequency heating element 177 is provided on the back surface of the partition plate 121, and the high-frequency heating element 177 is uniformly supplied by microwaves supplied from below. When heated, it will be browned uniformly. In addition, the steam that has accumulated at a high concentration is subjected to wrapping heating with heat of 100 ° C., so that the object to be heated is uniformly heated, and at the same time, water is uniformly retained, and water loss can be minimized. In addition, when the heater is heated, the steam is overheated by the heat of the heater, and even more uniform wrapping heating is realized, and at the same time, the steam is sufficiently filled around the object to be heated, thereby forming an oxygen-free state. By suppressing the oxidation and removing the salt angle of the salt, it is possible to finish to a mellow taste.

仕切り板１２１として、窒化物あるいは硼化物などからなる高周波発熱体（高周波吸収体）１７７を裏面に設けたセラミック製の仕切り板１２１を用いて被加熱物として塩サバを用いた場合、マイクロ波と蒸気による加熱を行い、次に加熱室上部の上部ヒータ１１７と蒸気の加熱を行なうことによって塩サバの内部がマイクロ波により加熱され、表面裏面共に焦げ目が付き、かつ蒸気の包み焼き加熱によって減水率を最小限に抑える。蒸気を過加熱状態にすることでとげとげしい塩辛さを取り除くことでまろやかな塩辛さの出来上がりを実現したものである。   As a partition plate 121, a ceramic partition plate 121 provided with a high-frequency heating element (high-frequency absorber) 177 made of nitride or boride on the back surface is used. By heating with steam, and then heating the steam with the upper heater 117 in the upper part of the heating chamber, the inside of the salt mackerel is heated by the microwave, the front and back surfaces are browned, and the water reduction rate is caused by the wrapping heating of the steam. Minimize. The steam is overheated to remove the spicy saltiness and achieve a mellow saltiness.

仕切り板１２１の配置および構成として、加熱室を上方部分と下方部分に分割するように、仕切り板１２１の外形を加熱室側壁面および加熱室を塞ぐ扉との間隙が小さくなるように構成したことにより、高濃度の蒸気を被加熱物に供給することが出来る。また、下方から供給されたマイクロ波が仕切り板１２１の上方に回り込むことが少なくなり、高周波発熱体へのマイクロ波の供給量が多くなり、被加熱物の下面の焦げ目がより付きやすくなるという効果がある。   As the arrangement and configuration of the partition plate 121, the outer shape of the partition plate 121 is configured so as to reduce the gap between the heating chamber side wall surface and the door that closes the heating chamber so as to divide the heating chamber into an upper portion and a lower portion. Accordingly, high-concentration steam can be supplied to the object to be heated. Further, the microwave supplied from below is less likely to wrap around the partition plate 121, the amount of microwave supplied to the high-frequency heating element is increased, and the lower surface of the object to be heated is more likely to be scorched. There is.

なお、加熱手段としては、上部ヒータ１１７としての管ヒータ、シーズヒータ等の他に、熱風を用いても良い。なお、仕切り板１２１として、裏面に高周波発熱体１７７を設けた被加熱物を載置する仕切り板１２１以外にも、受け皿自身を高周波で発熱するセラミックで形成しても良い。   As the heating means, hot air may be used in addition to a tube heater, a sheath heater, or the like as the upper heater 117. As the partition plate 121, in addition to the partition plate 121 on which the object to be heated having the high-frequency heating element 177 provided on the back surface is placed, the receiving plate itself may be formed of ceramic that generates heat at high frequency.

なお、上記加熱装置において、底面に高周波分散手段としてスタラ羽根を設けてもよい。このような加熱装置は、加熱室底面に設けられた高周波を発生させ高周波加熱を行なう。このスタラ羽根は高周波発生部１１３から発信したマイクロ波を被加熱物に均一に照射するために、高周波を分散させて加熱室内に供給するための高周波分散手段として有効である。この構成によって、マイクロ波はより均一に下方より加熱室内に供給され、被加熱物をより均一に加熱することができた。   In the above-described heating device, a stirrer blade may be provided on the bottom surface as high-frequency dispersion means. Such a heating device performs high-frequency heating by generating high-frequency waves provided on the bottom surface of the heating chamber. The stirrer blades are effective as high frequency dispersing means for dispersing the high frequency and supplying the microwave into the heating chamber in order to uniformly irradiate the microwaves transmitted from the high frequency generator 113 to the object to be heated. With this configuration, the microwave was more uniformly supplied into the heating chamber from below, and the object to be heated could be more uniformly heated.

また、仕切り板１２１として、セラミック製材料の変わりに、高周波を遮蔽することのできる金属で構成することにより、下方から供給されたマイクロ波が上方に回り込むことがより少なくなり、被加熱物の減水率を最大限に抑えると同時に蒸気によって更に包み焼き効果を向上させることで被加熱物の旨味を保ったまま調理をすることが出来るという効果がある。   In addition, since the partition plate 121 is made of a metal capable of shielding high frequency instead of a ceramic material, the microwave supplied from below is less likely to wrap around upward, thereby reducing water to be heated. By suppressing the rate to the maximum and further improving the wrapping effect by steam, there is an effect that cooking can be performed while maintaining the taste of the object to be heated.

このようにして下方より均一に供給されるたマイクロ波により高周波発熱体を設けた仕切り板が均一に加熱されると同時に蒸気とヒータによる均一な包み焼き加熱調理を行なうことが出来る。   In this way, the partition plate provided with the high-frequency heating element is uniformly heated by the microwaves supplied uniformly from below, and at the same time, uniform wrapping and heating cooking with steam and a heater can be performed.

なお、前記第２の実施の形態では、加熱室内壁１１１の背面側に一つの突出部１１２を形成することにより、間隙Ｓを形成したが、変形例として、図２１に示すように、加熱室内壁１１１の背面の両サイドに凹部１１３を形成することにより、仕切り板１２１と加熱室内壁との間に間隙Ｓ０を２つ形成し、２ヶ所から蒸気を上方空間に導くようにしてもよい。   In the second embodiment, the gap S is formed by forming one protruding portion 112 on the back side of the inner wall 111 of the heating chamber, but as a modified example, as shown in FIG. By forming the concave portions 113 on both sides on the back surface of the wall 111, two gaps S0 may be formed between the partition plate 121 and the inner wall of the heating chamber, and the steam may be guided to the upper space from two places.

また、加熱室内壁２１１側ではなく、図２２に示すように、仕切り板自体の４隅に貫通孔Ｓ１を形成してもよい。この構成によっても、蒸気発生部で発生した蒸気はこの貫通孔Ｓ１を通過して上方空間に導かれる。なお、下方空間に給気口を設け、外気の供給を行なうようにしてもよい。これにより、外気は下方空間で、蒸気と良好に接触し蒸気温度を低下させ、貫通孔Ｓ１を通って、上方空間に供給される。このとき、外気の流入量によって蒸気温度を調整することができるこれにより蒸気温度を調整することができ、卵料理などに有効な８５℃以下での低温蒸気での加熱を実現することもで可能である。
さらにまた、図２３および図２４に示すように、仕切り板３２１の周縁に沿って多数の貫通孔Ｓ２を配列してもよい。この場合は加熱室内壁３１１から若干離間した位置で蒸気が上方空間に供給されるため、加熱室内壁への結露を防止することができる。 In addition, as shown in FIG. 22, the through holes S1 may be formed at the four corners of the partition plate itself instead of the heating chamber inner wall 211 side. Also with this configuration, the steam generated in the steam generation unit passes through the through hole S1 and is guided to the upper space. An air supply port may be provided in the lower space to supply outside air. As a result, the outside air satisfactorily contacts the steam in the lower space, lowers the steam temperature, and is supplied to the upper space through the through hole S1. At this time, the steam temperature can be adjusted according to the amount of inflow of outside air. Thereby, the steam temperature can be adjusted, and it is also possible to realize heating with low-temperature steam at 85 ° C. or less, which is effective for eggs and the like. It is.
Further, as shown in FIGS. 23 and 24, a large number of through holes S2 may be arranged along the periphery of the partition plate 321. In this case, since the steam is supplied to the upper space at a position slightly separated from the heating indoor wall 311, dew condensation on the heating indoor wall can be prevented.

本発明の高周波加熱調理器によれば、被加熱物を載置すると共に加熱室の底面より所定間隔を隔てて、上方に脱着自在に配設することで該加熱室内の空間を分割する仕切り板を有し、蒸気発生部で発生させた蒸気を仕切り板より上方に位置する上方空間内に効率よく供給できることから、蒸し調理に有効で、取り扱いの容易な高周波加熱装置を提供することができ、種々の蒸し調理に適用可能である。また、結露を防止することができることから取り扱いが容易で、メンテナンスフリーで仕上がりの良好な高周波加熱装置として有効である。   ADVANTAGE OF THE INVENTION According to the high frequency heating cooker of this invention, the to-be-heated object is mounted | worn and the partition board which divides the space in this heating chamber by being detachably arrange | positioned above the bottom of a heating chamber at predetermined intervals and detachably attached upward. Since it is possible to efficiently supply the steam generated in the steam generating section into the upper space located above the partition plate, it is possible to provide a high-frequency heating device that is effective for steam cooking and easy to handle, It is applicable to various steam cooking. In addition, since dew condensation can be prevented, handling is easy, and it is effective as a high-frequency heating device which is maintenance-free and has a good finish.

本発明の第１の実施の形態に係る高周波加熱調理器の開閉扉を開けた状態を示す正面図である。It is a front view showing the state where the opening and closing door of the high frequency cooking device concerning a 1st embodiment of the present invention was opened. 図１のＡ−Ａ断面における概念的な矢視図である。It is a conceptual arrow view in the AA section of FIG. 高周波加熱調理器の制御ブロック図である。It is a control block diagram of a high frequency heating cooker. 高周波加熱調理器の蒸気発生の基本原理を表す説明図である。It is explanatory drawing showing the basic principle of steam generation of a high frequency heating cooker. 加熱ブロックの外観図で（ａ）は上面側、（ｂ）は裏面側の斜視図である。In the external view of the heating block, (a) is a perspective view of an upper surface side, and (b) is a perspective view of a back surface side. 加熱室内における蒸気発生部の概略的な（ａ）分解図、（ｂ）組立図である。FIG. 2 is a schematic (a) exploded view and (b) an assembly view of a steam generation section in a heating chamber. 図１のＢ方向矢視図である。FIG. 2 is a view as viewed in the direction of arrow B in FIG. 1. 受け皿の外観斜視図である。It is an external appearance perspective view of a saucer. 図８のＣ−Ｃ断面図で（ａ）は凸部を形成した例、（ｂ）は金属板が波形である例を示す図である。8A is a diagram illustrating an example in which a convex portion is formed, and FIG. 8B is a diagram illustrating an example in which a metal plate has a waveform. 受け皿上に載置した被加熱物を、加熱室内に高周波及び蒸気を供給して加熱処理する様子の一例を概念的に示す説明図である。It is explanatory drawing which shows notionally what the object to be heated mounted on the saucer is heated and supplied to a heating chamber by supplying a high frequency and steam, and the example of a mode that it heat-processes. 蒸し調理の加熱パターン例を示す説明図である。It is explanatory drawing which shows the heating pattern example of steam cooking. 予熱の有無による被加熱物の温度の時間変化を示すグラフである。It is a graph which shows the time change of the temperature of a to-be-heated object by the presence or absence of preheating. 加熱室内の雰囲気温度を上げたい場合の加熱パターンを示す説明図である。It is explanatory drawing which shows the heating pattern at the time of wanting to raise the atmospheric temperature in a heating room. グリル調理の加熱パターン例を示す説明図で、（ａ）は蒸気供給なし、（ｂ）は蒸気供給ありの例を示す温度変化のグラフである。It is explanatory drawing which shows the example of a heating pattern of grill cooking, (a) is a graph of a temperature change which shows an example with steam supply without steam supply, and (b). 高周波加熱を併用してグリル加熱を行なう加熱パターン例を示す説明図である。It is explanatory drawing which shows the example of the heating pattern which performs grill heating using high frequency heating together. 蒸気発生部の加熱方式に対する他の構成例を示す図で、（ａ）は加熱ブロックと蒸発皿とを別体に形成した例、（ｂ）は蒸発皿を輻射熱で加熱する例を示す断面図である。It is a figure which shows the example of another structure with respect to the heating system of a steam generation part, (a) is an example which formed the heating block and the evaporating dish separately, (b) is sectional drawing which shows the example which heats an evaporating dish with radiant heat. It is. 蒸気発生部からの蒸気を加熱室内に供給する際の蒸気の供給方向を変更した一例としての概略構成図であり、（ａ）は側面図、（ｂ）は平面図である。It is a schematic structure figure as an example which changed the supply direction of steam at the time of supplying steam from a steam generation part into a heating room, (a) is a side view, and (b) is a top view. 加熱室内に蒸気パイプを設けた構成例を示す概略側面図である。It is a schematic side view which shows the example of a structure which provided the steam pipe in the heating chamber. 本発明の第２の実施の形態の高周波加熱装置の概略構成断面図Schematic configuration sectional view of a high-frequency heating device according to a second embodiment of the present invention 同高周波加熱装置の概略構成断面図Schematic configuration cross-sectional view of the high-frequency heating device 本発明の第２の実施の形態の高周波加熱装置の変形例を示す要部拡大断面図Main part enlarged sectional view showing a modification of the high-frequency heating device according to the second embodiment of the present invention. 本発明の第２の実施の形態の高周波加熱装置の変形例を示す要部拡大断面図Main part enlarged sectional view showing a modification of the high-frequency heating device according to the second embodiment of the present invention. 本発明の第２の実施の形態の高周波加熱装置の変形例を示す要部拡大断面図Main part enlarged sectional view showing a modification of the high-frequency heating device according to the second embodiment of the present invention. 本発明の第２の実施の形態の高周波加熱装置の変形例を示す要部拡大断面図Main part enlarged sectional view showing a modification of the high-frequency heating device according to the second embodiment of the present invention.

符号の説明Explanation of reference numerals

１１ 加熱室
１３ 高周波発生部
１５ 蒸気発生部
１７ 上部加熱ヒータ（予熱手段）
２１ 受け皿
２５ 係止部
２９ 蒸気パイプ（蒸気搬送路）
３９ 制御部
４５ 加熱ブロック
４５ａ 水溜凹所
４５ｂ 加熱部
４７ 蒸気ダクト
４９ 逆止弁
５１ 給水管
５１ａ 中間部配管
５３ シーズヒータ
５５ 吐出側配管
５９ 吐出口
６１ 本体
６３ 収容穴
６５ サーミスタ
６７ 開口孔
６９ 段付き部
７１ 蓋体
７１ａ 開口孔
７３ 蒸気取り出し口
７５ 金属板
７７ 高周波発熱体
７９ 固定部材
８１ 高周波吸収膜
８５ 蒸気噴き出し口
８７ 加熱室空間
９１ 操作パネル
９３ スタートスイッチ
９５ 記憶部
９７ 自動調理スイッチ
１００ 高周波加熱調理器
１０１ 蒸気供給スイッチ
１０５ 蒸発皿
１０７ 加熱ブロック
１０９ シーズヒータ
Ｍ 被加熱物 Reference Signs List 11 heating chamber 13 high-frequency generator 15 steam generator 17 upper heater (preheating means)
21 Receiving tray 25 Locking part 29 Steam pipe (steam transport path)
39 Control part 45 Heating block 45a Water reservoir recess 45b Heating part 47 Steam duct 49 Check valve 51 Water supply pipe 51a Intermediate part pipe 53 Sheath heater 55 Discharge side pipe 59 Discharge port 61 Main body 63 Housing hole 65 Thermistor 67 Open hole 69 Stepped Unit 71 Lid 71 a Opening hole 73 Steam outlet 75 Metal plate 77 High frequency heating element 79 Fixing member 81 High frequency absorbing film 85 Steam outlet 87 Heating room space 91 Operation panel 93 Start switch 95 Storage unit 97 Automatic cooking switch 100 High frequency heating cooking Vessel 101 steam supply switch 105 evaporating dish 107 heating block 109 sheathed heater M object to be heated

Claims (18)

高周波発生部と、被加熱物を収容する加熱室内に蒸気を供給する蒸気供給部とを有し、前記加熱室に高周波と蒸気の少なくとも一方を供給して被加熱物を加熱処理する高周波加熱調理器であって、
被加熱物を載置すると共に前記加熱室の底面より所定間隔を隔てて、上方に、脱着自在に配設することで該加熱室内の空間を分割する仕切り板とを具備し、
前記蒸気は前記仕切り板より上方に位置する上方空間内に供給されるようにした高周波加熱調理器。 High-frequency heating cooking that has a high-frequency generation unit and a steam supply unit that supplies steam into a heating chamber that stores the object to be heated, and supplies at least one of high frequency and steam to the heating chamber to heat the object to be heated. Vessel
A partition plate on which the object to be heated is placed and separated from the bottom surface of the heating chamber by a predetermined distance, and above, a partition plate that divides a space in the heating chamber by being detachably disposed,
A high-frequency heating cooker wherein the steam is supplied into an upper space located above the partition plate. 前記蒸気供給部は、前記加熱室内の前記仕切り板よりも下側の空間に蒸気発生部を備え、前記蒸気発生部で生成された蒸気を、前記加熱室内を通って、前記加熱室の上方空間に導くように構成された請求項１記載の高周波加熱調理器。   The steam supply unit is provided with a steam generation unit in a space below the partition plate in the heating chamber, and passes the steam generated by the steam generation unit through the heating chamber to a space above the heating chamber. The high-frequency heating cooker according to claim 1, wherein the cooker is configured to be guided to: 前記仕切り板の周縁と前記加熱室の側壁との間に間隙を有し、前記蒸気発生部で生成された蒸気は、前記加熱室の側壁をとおり、前記間隙を介して、前記加熱室の上方空間に導かれる請求項２記載の高周波加熱調理器。   There is a gap between the peripheral edge of the partition plate and the side wall of the heating chamber, and the steam generated by the steam generation unit passes through the side wall of the heating chamber, passes through the gap, and is located above the heating chamber. 3. The high-frequency heating cooker according to claim 2, which is led to a space. 前記仕切り板は、周縁に貫通孔を有し、前記蒸気発生部で生成された蒸気は、前記貫通孔を介して加熱室の上方空間に導かれる請求項３記載の高周波加熱調理器。   The high frequency heating cooker according to claim 3, wherein the partition plate has a through hole at a peripheral edge, and the steam generated by the steam generating unit is guided to a space above the heating chamber through the through hole. 前記仕切り板は、高周波発熱体を含む請求項１乃至４のいずれかに記載の高周波加熱調理器。   The high frequency heating cooker according to any one of claims 1 to 4, wherein the partition plate includes a high frequency heating element. 前記仕切り板は、高周波遮蔽体を含む請求項１乃至５のいずれかに記載の高周波加熱調理器。   The high frequency heating cooker according to any one of claims 1 to 5, wherein the partition plate includes a high frequency shield. 前記高周波遮蔽体は、金属板を含む請求項６に記載の高周波加熱調理器。   The high-frequency heating cooker according to claim 6, wherein the high-frequency shield includes a metal plate. 前記加熱室内の雰囲気温度を上昇させる予熱手段を備えた請求項１乃至７のいずれかに記載の高周波加熱調理器。   The high-frequency heating cooker according to any one of claims 1 to 7, further comprising a preheating means for increasing an ambient temperature in the heating chamber. 前記予熱手段は、前記加熱室の上方に設けた上部加熱ヒータを含む請求項８に記載の高周波加熱調理器。   The high-frequency heating cooker according to claim 8, wherein the preheating means includes an upper heater provided above the heating chamber. 前記予熱手段は、前記仕切り板に設けられた高周波発熱体を含む請求項８に記載の高周波加熱調理器。   9. The high frequency heating cooker according to claim 8, wherein the preheating means includes a high frequency heating element provided on the partition plate. 前記蒸気搬送手段が、発生した蒸気を前記加熱室内から加熱室外に導出して再度加熱室内に導入する蒸気搬送路を有する請求項１、５乃至１０のいずれかに記載の高周波加熱調理器。   The high-frequency heating cooker according to any one of claims 1, 5 to 10, wherein the steam conveying means has a steam conveying path for guiding the generated steam from the heating chamber to the outside of the heating chamber and introducing the generated steam into the heating chamber again. 前記仕切り板は、前記加熱室の内壁面の複数の高さ位置に設けられた係止部で係止される請求項１乃至請求項１１のいずれかに記載の高周波加熱調理器。   The high frequency heating cooker according to any one of claims 1 to 11, wherein the partition plate is locked by locking portions provided at a plurality of height positions on an inner wall surface of the heating chamber. 前記蒸気発生部は、前記加熱室底面の背面側の壁面に沿って配設される請求項２に記載の高周波加熱装置。   The high-frequency heating device according to claim 2, wherein the steam generating unit is disposed along a wall surface on a back side of the bottom surface of the heating chamber. 前記蒸気供給部は、蒸気が被加熱物に直接当たるように構成される請求項１乃至１３のいずれかに記載の高周波加熱装置。   The high-frequency heating device according to any one of claims 1 to 13, wherein the steam supply unit is configured such that the steam directly hits the object to be heated. 高周波を分散させて加熱室内に供給する高周波分散手段を備えた請求項１乃至１４のいずれかに記載の高周波加熱装置。   The high-frequency heating apparatus according to any one of claims 1 to 14, further comprising a high-frequency dispersing unit that disperses the high-frequency waves and supplies the high-frequency waves into the heating chamber. 前記高周波発生部と前記蒸気供給部と前記予熱手段とを制御する制御部を備え、
前記制御部は、前記予熱手段の発熱により前記加熱室を加熱する予熱ステップと、被加熱物を前記高周波発生部からの高周波、前記蒸気供給部からの蒸気の少なくともいずれかを供給して加熱処理を行なう本加熱ステップとをこの順で実行するように構成された請求項８乃至請求項１５のいずれかに記載の高周波加熱調理器。 A control unit that controls the high-frequency generation unit, the steam supply unit, and the preheating unit,
The control unit includes a preheating step of heating the heating chamber by heat generated by the preheating unit, and heating the object to be heated by supplying at least one of a high frequency from the high frequency generation unit and steam from the steam supply unit. The high-frequency heating cooker according to any one of claims 8 to 15, wherein the main heating step of performing the heating is performed in this order. 前記高周波発生部と前記蒸気供給部と前記予熱手段とを制御する制御部を備え、
前記制御部が、被加熱物の加熱中に、前記蒸気供給部から蒸気を所定時間加熱室内に供給する割り込み処理機能を有する請求項８乃至請求項１５のいずれかに記載の高周波加熱調理器。 A control unit that controls the high-frequency generation unit, the steam supply unit, and the preheating unit,
The high frequency heating cooker according to any one of claims 8 to 15, wherein the control unit has an interrupt processing function of supplying steam from the steam supply unit into the heating chamber for a predetermined time during heating of the object to be heated. 前記割り込み処理を任意のタイミングで実行させる蒸気供給スイッチを備えた請求項１７記載の高周波加熱調理器。   The high-frequency heating cooker according to claim 17, further comprising a steam supply switch for executing the interrupt processing at an arbitrary timing.
JP2003413655A 2002-12-12 2003-12-11 Induction heating cooker Expired - Lifetime JP4278502B2 (en)

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JP2003413655A JP4278502B2 (en) 2002-12-12 2003-12-11 Induction heating cooker
EP04005852A EP1458220B1 (en) 2003-03-12 2004-03-11 High frequency heating apparatus having a steam generating function
DE602004001073T DE602004001073T2 (en) 2003-03-12 2004-03-11 High Frequency Heater provided with steam generating function
CNB2004100477411A CN1256537C (en) 2003-03-12 2004-03-12 High frequency heating cooking machine
US10/800,061 US7199340B2 (en) 2003-03-12 2004-03-12 High frequency heating apparatus with steam generator

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