JP2007303750A

JP2007303750A - Heating cooker

Info

Publication number: JP2007303750A
Application number: JP2006133296A
Authority: JP
Inventors: Hiroo Nitta; 浩朗新田
Original assignee: Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Holdings Corp
Priority date: 2006-05-12
Filing date: 2006-05-12
Publication date: 2007-11-22
Anticipated expiration: 2026-05-12
Also published as: JP4735409B2

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that a user must wipe out water from dew condensation after heating with steam in this type of high-frequency heating device in which the interior of a heating chamber is full of steam more than a conventional high-frequency heating device, so that, after heating, a large amount of dew condensation is generated in the heating chamber, and when the quantity of steam is especially large, dripping is caused on the floor surface outside the device. <P>SOLUTION: Water generated by dew condensation on the wall surface in the heating chamber 1 is stored in a dew condensation water storing part 31 of a placing tray 30 removably provided in the heating chamber, whereby it is possible to provide the high-frequency heating device not forcing a user to do troublesome work. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、加熱調理時に被加熱物から生じる水蒸気の結露対策を行った加熱調理装置に関するものである。 The present invention relates to a heating cooking apparatus that takes measures against condensation of water vapor generated from an object to be heated during cooking.

従来、この種の高周波加熱装置は、被加熱物を収容する加熱室内に高周波を出力する高周波発生手段を備え、加熱室内の被加熱物に対し高周波を照射して短時間で効率のよい加熱ができるため、食材等の加熱調理機器である電子レンジとして急速に普及した。また、オーブンレンジなどにおいては、よりおいしい調理を実現するために、水蒸気を加熱室内に充満し、加熱による被加熱物の乾燥を防止したり、被加熱物に水分が供給されることでマイクロ波加熱の効率を向上したり、水蒸気の潜熱により加熱室内の温度を均一にしたり、調理時間を短縮するなどの技術開発が行われており、これらは一般的に、蒸気発生機能付き高周波加熱装置と呼ばれている。 Conventionally, this type of high-frequency heating apparatus has a high-frequency generating means for outputting a high frequency in a heating chamber that accommodates an object to be heated, and the object to be heated in the heating chamber is irradiated with a high frequency to perform efficient heating in a short time. Therefore, it has rapidly spread as a microwave oven, which is a cooking device such as ingredients. Also, in microwave ovens, in order to achieve more delicious cooking, water is filled into the heating chamber to prevent drying of the object to be heated by heating, or by supplying moisture to the object to be heated. Technological developments such as improving the efficiency of heating, making the temperature in the heating chamber uniform by the latent heat of steam, and shortening the cooking time are generally performed. being called.

しかしながら、従来の高周波加熱装置にも増して、水蒸気が加熱室内に充満するため、加熱後、加熱室内に結露発生が生じていた。したがって、使用者は蒸気を使った加熱後、毎回、加熱庫内の結露水を拭い取る作業を行っていた。また、結露水を拭かないで加熱庫の開閉扉を閉めたままにしておくと、いつまでも加熱室内壁面が湿潤した状態が続くので、結露水が高周波加熱装置の開閉扉の下方隙間から流れ出て、床やテーブルを汚すという問題があり、また次に開閉扉を開けた時に不衛生であるとか、装置が傷むのではないかといった懸念があった。 However, since the water vapor is filled in the heating chamber as compared with the conventional high-frequency heating device, condensation occurs in the heating chamber after heating. Therefore, the user performed the operation of wiping off the condensed water in the heating chamber every time after heating using steam. Also, if you leave the heating door open and close without wiping the condensed water, the wall surface of the heating chamber will remain wet forever, so the condensed water will flow out from the lower gap of the opening and closing door of the high-frequency heating device, There was a problem of soiling the floor and table, and there were concerns that it would be unsanitary when the door was opened next, or that the device would be damaged.

特許文献１における高周波加熱装置は、床面に結露水が滴下するという品位を損なう課題を防止するため、高周波加熱装置本体の前面下部に水蒸気が結露して、扉に付着した水滴が床に滴下するのを防止する水滴受け部を配設し、水滴受け部には水滴を受ける凹形状の溝を設け、かつ高周波加熱装置本体より着脱可能な構成とし、水滴受け部には長手方向に水の流速を軽減させる流速軽減手段を備えていた。 In the high-frequency heating device in Patent Document 1, in order to prevent the problem of degrading the quality of condensation water dripping on the floor surface, water vapor is condensed on the front lower portion of the high-frequency heating device body, and water droplets adhering to the door are dripped onto the floor. The water drop receiving part is provided with a concave groove for receiving water drops, and is configured to be detachable from the main body of the high-frequency heating device, and the water drop receiving part has water in the longitudinal direction. A flow rate reduction means for reducing the flow rate was provided.

そして、水滴受け部は取り外せるため結露水及び屑を容易に取り除くことができ、また水滴受け部を着脱し、持ち運ぶ際の水滴受け部の揺れや傾きによる水の零れを防止することができるという効果を有していた。 And, since the water drop receiving part can be removed, the condensed water and debris can be easily removed, and the water drop receiving part can be attached and detached to prevent water spilling due to shaking or tilting of the water drop receiving part when carrying. Had.

また、特許文献２における高周波加熱装置は、被加熱物を収容する加熱室に、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蒸気発生機能付き高周波加熱装置であって、高周波発生部と、加熱室内に蒸気を供給する蒸気発生部と、加熱室内の蒸気を撹拌する循環ファンとを備え、調理終了直前および／または終了後に循環ファンを所定時間回転させるようにしたものである。 In addition, the high-frequency heating device in Patent Document 2 is a high-frequency heating device with a steam generation function that supplies at least one of high-frequency and steam to a heating chamber that accommodates the object to be heated, and heats the object to be heated. A high-frequency generator, a steam generator for supplying steam into the heating chamber, and a circulation fan for stirring the steam in the heating chamber, and the circulation fan is rotated for a predetermined time immediately before and / or after the end of cooking. Is.

そして、この高周波加熱装置は閉じた加熱室内であっても内部の空気全体が飽和蒸気状態にあるのではなく、加熱室内の壁面に近い部分の空気のみが飽和蒸気状態にあり、それ以外の場所にある空気は未飽和状態にあるので、全体の空気を撹拌すると飽和蒸気と未飽和蒸気が混じり合って、その結果全体の空気は未飽和状態となり、したがって結露が蒸発する余地ができることで、加熱室内に結露が生じても拭く必要のないという効果を有していた。
特開２００５−１２７６２２号公報特開２００４−３１７０７７号公報 And even if this high-frequency heating device is in a closed heating chamber, the entire air inside is not in a saturated vapor state, only the air near the wall surface in the heating chamber is in a saturated vapor state, and other places Because the air in is in an unsaturated state, when the entire air is agitated, saturated and unsaturated vapors mix, resulting in the entire air becoming unsaturated, thus allowing room for condensation to evaporate and heating. Even if condensation occurs in the room, there is no need to wipe it.
JP 2005-127622 A JP 2004-317077 A

特許文献１における高周波加熱装置では、発生した水蒸気は加熱室壁面に結露し、水滴が凝集して次第に大きくなってくると、表面張力や摩擦力に逆らって重力方向に流れ出す。これらの結露水は、加熱室壁面を伝って底面に溜まり水溜りができるか、あるいは加熱室扉の壁面を伝って流れ出した水は、加熱室扉と加熱室の接触隙間から装置外下部に設置された水滴受け部に貯留される。 In the high-frequency heating device in Patent Document 1, generated water vapor condenses on the wall surface of the heating chamber, and when water droplets aggregate and gradually increase, they flow out in the direction of gravity against surface tension and frictional force. These condensed water can be accumulated on the bottom surface of the heating chamber wall, or can be accumulated on the bottom surface, or the water that has flowed out along the wall surface of the heating chamber door is installed in the lower part outside the device through the contact gap between the heating chamber door and the heating chamber. Is stored in the water droplet receiver.

しかしながら、加熱室底面に大量の結露水が溜まるということは、調理後に加熱室扉を開けて加熱物を取り出す際の品位を損なうといった問題や、結露水を拭い取る作業が必要になるといった問題がある。 However, the accumulation of a large amount of condensed water on the bottom surface of the heating chamber is a problem that the quality when the heated chamber door is opened and the heated object is taken out after cooking or the operation of wiping the condensed water is required. is there.

また、特許文献２における高周波加熱装置では、発生した水蒸気が加熱室壁面に結露した場合に、加熱室内の空気を撹拌すると飽和蒸気と未飽和蒸気が混じり合って、加熱室内の空気は不飽和状態となり、結露水は一部蒸発するが、水蒸気の発生量が多くなってくると、加熱室内の空気は飽和状態となり、加熱室壁面に結露することになる。よって、前述のように、大量の結露水が加熱室底面に溜まってくると、加熱室扉と加熱室の接触隙間から装置外の床面などに滴下し、品位を損なうといった問題がある。 In addition, in the high-frequency heating device in Patent Document 2, when the generated water vapor is condensed on the wall surface of the heating chamber, when the air in the heating chamber is stirred, saturated steam and unsaturated steam are mixed, and the air in the heating chamber is in an unsaturated state. Thus, the condensed water partially evaporates, but when the amount of water vapor generated increases, the air in the heating chamber becomes saturated and condensation occurs on the wall surface of the heating chamber. Therefore, as described above, when a large amount of condensed water accumulates on the bottom surface of the heating chamber, there is a problem that it drops on the floor surface outside the apparatus from the contact gap between the heating chamber door and the heating chamber, thereby impairing the quality.

前記従来の課題に鑑み、本発が解決しようとする課題は、蒸気を使った加熱後、加熱室内の結露水を拭い取る作業を行う必要がなく、また前記作業を行わなくても次に加熱室扉を開けた時に不衛生であるとか、装置が傷むといったことがない加熱調理装置の提供をすることにある。 In view of the conventional problems, the problem to be solved by the present invention is that it is not necessary to wipe off the condensed water in the heating chamber after heating using steam, and the next heating is performed without performing the work. The object of the present invention is to provide a cooking device that does not become unsanitary when the room door is opened or does not damage the device.

前記課題を解決するために、本発明の加熱調理装置は、被加熱物を収納し加熱する加熱室と、前記加熱室に供給する水蒸気を発生する蒸気発生手段と、前記加熱室に着脱自在に設けられた載置皿と、前記加熱室に供給された水蒸気が結露した結露水を貯留する結露水貯水部を有し、前記結露水貯水部は結露水が前記加熱室内の載置皿上部に位置した突起から流れ伝って貯留されるように構成した加熱調理装置である。 In order to solve the above-described problems, a cooking device according to the present invention includes a heating chamber that houses and heats an object to be heated, a steam generation unit that generates steam to be supplied to the heating chamber, and a detachable attachment to the heating chamber. And a dew condensation water storage unit for storing dew condensation water in which the water vapor supplied to the heating chamber is condensed, wherein the dew condensation water storage unit is disposed on an upper part of the mounting plate in the heating chamber. It is the heating cooking apparatus comprised so that it might flow and be stored from the processus | protrusion located.

上記発明のように、加熱室内の壁面などに結露した水は、加熱室内の載置皿上部に位置した突起から流れ伝って結露水貯水部に貯留されるようにすることで、従来のように結露水が加熱室内の底面に大量に溜まり、加熱室扉と加熱室との接触隙間から装置外の床面などに滴下するのを防ぐことができるとともに、使用者に手間のかかる作業を強いることの無い、加熱調理装置を提供できるものである。 As in the above invention, the water condensed on the wall surface in the heating chamber flows from the protrusion located at the top of the mounting tray in the heating chamber and is stored in the dew condensation water reservoir, as in the conventional case. A large amount of condensed water can accumulate on the bottom surface of the heating chamber and prevent dripping from the contact gap between the heating chamber door and the heating chamber onto the floor surface outside the device, etc. It is possible to provide a cooking device without heat.

本発明の加熱調理装置は、加熱室内に供給された水蒸気が、壁面などで結露し生じた結露水を、結露水貯水部に貯留されるようにすることで、加熱室扉と加熱室との接触隙間から装置外の床面などに滴下することを防ぐことができ、使用者に余計な手間を強いることのない使い勝手の良いものにできる。 The heating cooking apparatus of the present invention is configured so that the dew condensation water generated by dew condensation on the wall surface or the like is stored in the dew condensation water storage unit so that the water vapor supplied into the heating chamber is stored between the heating chamber door and the heating chamber. It is possible to prevent dripping from the contact gap to the floor surface outside the apparatus and the like, and it is possible to make it easy to use without putting extra effort on the user.

第１の発明は、被加熱物を収納し加熱する加熱室と、前記加熱室に供給する水蒸気を発生する蒸気発生手段と、前記加熱室に着脱自在に設けられた載置皿と、前記加熱室に供給された水蒸気が結露した結露水を貯留する結露水貯水部を有し、前記結露水貯水部は結露水が前記加熱室内の前記載置皿上部に位置した突起から流れ伝って貯留されるようにした加熱調理装置とすることにより、加熱室内の壁面などに結露した水を、突起から流れ伝って結露水貯水部に貯留されるようにすることで、従来のように結露水が加熱室内の底面に
大量に溜まり、加熱室扉と加熱室との接触隙間から装置外の床面などに滴下することを防ぐことができ、使用者に手間のかかる作業を強いることの無い、加熱調理装置とすることができるものである。 The first invention includes a heating chamber for storing and heating an object to be heated, a steam generating means for generating water vapor to be supplied to the heating chamber, a mounting plate detachably provided in the heating chamber, and the heating A condensate water storage section for storing the dew condensation water condensed by the water vapor supplied to the chamber, wherein the dew condensation water storage section is stored by passing the dew condensation water from a protrusion located at the upper part of the mounting plate in the heating chamber. By using a cooking device that is designed to condense, water that has condensed on the walls of the heating chamber flows from the projections and is stored in the condensed water reservoir, so that the condensed water is heated as before. Heat cooking that accumulates in large quantities on the bottom surface of the room and prevents dripping from the contact gap between the heating chamber door and the heating chamber onto the floor surface outside the device, etc. It can be a device.

第２の発明は、特に第１の発明の結露水貯水部は貯留した結露水を、加熱室内に配設され、被加熱物の略周囲に位置する加熱手段により加熱蒸発させ蒸気を発生させるようにした加熱調理装置とすることにより、比較的温度が高い状態の（一般的には５０℃程度）結露水を加熱蒸発させるため、エネルギーの消費を抑制できるとともに、被加熱物の近傍から水蒸気を発生させることで、発生した水蒸気が優先的に被加熱物に結露し、壁面に再結露する可能性が少なく、効率的に被加熱物に水蒸気を導くことができるものである。 In the second aspect of the invention, in particular, the condensed water storage section of the first aspect of the invention is configured to generate vapor by heating and evaporating the stored condensed water in a heating chamber and heating means located substantially around the object to be heated. By using the cooking device, the condensed water with a relatively high temperature (generally about 50 ° C.) is heated and evaporated, so that energy consumption can be suppressed and water vapor is generated from the vicinity of the object to be heated. By generating the water vapor, the generated water vapor is preferentially condensed on the object to be heated and is less likely to be condensed again on the wall surface, and the water vapor can be efficiently guided to the object to be heated.

第３の発明は、特に第２の発明の加熱手段は、マイクロ波を吸収して発熱する部材で構成した加熱調理装置とすることにより、例えば、載置皿に魚や鶏肉などを載せてグリル調理する場合には、加熱室内に水蒸気を供給し表面の乾燥を抑制しながら、加熱室内の天面に設けられたグリルヒータあるいは、載置皿に形成された発熱体をマイクロ波で発熱させ載置皿を加熱し、調理を行うが、この時、マイクロ波が、魚や鶏肉に直接及んでしまうと、身が弾けたり端部が加熱集中により硬化したりすることがある。 According to the third aspect of the invention, in particular, the heating means of the second aspect of the invention is a cooking device constituted by a member that generates heat by absorbing microwaves, for example, grilling by placing fish or chicken on a mounting plate In this case, the steam heater provided on the top surface of the heating chamber or the heating element formed on the mounting tray is heated by microwave while supplying water vapor to the heating chamber to suppress the drying of the surface. The dish is heated and cooked. At this time, if the microwaves directly reach the fish or chicken, the body may bounce or the edges may harden due to heat concentration.

然るに、本発明では結露水貯水部を加熱する加熱手段がマイクロ波を吸収して、結露水貯水部に貯留された水を蒸発させるので、マイクロ波が、魚や鶏肉に直接及ぶことはなく、おいしく加熱調理できるものである。 However, in the present invention, the heating means for heating the condensed water reservoir absorbs the microwave and evaporates the water stored in the condensed water reservoir, so that the microwave does not directly reach the fish or chicken. It can be cooked.

第４の発明は、特に第１〜第３のいずれか１つの発明において、最長時間運転時に生じる結露水量を、満水量として結露水貯水部に表示した加熱調理装置とすることにより、使用者に結露水の排水を促すことができるものである。 According to a fourth aspect of the present invention, in particular, in any one of the first to third aspects of the invention, the amount of condensed water generated during the longest operation is a cooking device that displays the amount of condensed water in the condensed water storage unit as the full water amount. It can encourage drainage of condensed water.

第５の発明は、特に、第１〜第４のいずれか１つの発明の結露水貯水部の容量を、最長時間運転時に生じる結露水が、結露水貯水部を約１５°傾けても溢れない容量に対し、安全率１．２〜２を乗じた容量とした加熱調理装置とすることにより、使用者が載置皿を着脱する際に、載置皿を傾けることができる限度と、無意識に有する角度として想定される約１５°まで傾けても、結露水が加熱室内および床面などに滴下しないようにすることができるものである。 In the fifth aspect of the invention, in particular, the capacity of the condensed water reservoir of any one of the first to fourth aspects is not overflowed even when the condensed water produced during the longest operation is tilted by about 15 °. By setting the cooking device to a capacity multiplied by a safety factor of 1.2 to 2 for the capacity, the user can tilt the mounting dish when unmounting the mounting dish, and unconsciously Even if it is tilted up to about 15 °, which is assumed to have an angle, the condensed water can be prevented from dripping onto the heating chamber and the floor surface.

以下、本発明の実施の形態について、図面を参照しながら説明する。なお、この実施の形態によって本発明が限定されるものではない。また、本実施の形態の説明において、同一構成で同一作用効果を奏するところには同一符号を付して重複した説明を行わないものとする。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments. Further, in the description of the present embodiment, parts having the same configuration and the same operational effects are denoted by the same reference numerals, and redundant description will not be given.

（実施の形態１）
図１は本発明の実施の形態１における発明を採用した高周波加熱装置の断面図で、図２は同高周波加熱装置の要部の拡大断面図を示したものである。 (Embodiment 1)
FIG. 1 is a cross-sectional view of a high-frequency heating device adopting the invention according to Embodiment 1 of the present invention, and FIG. 2 is an enlarged cross-sectional view of a main part of the high-frequency heating device.

図１に示すように、加熱室１は金属材料で形成された各壁面によって電波的に閉じられた空間を構成し、この加熱室１内に被加熱物を収納する被加熱物収納空間２を形成している。被加熱物収納空間２はその底面に、被加熱物を載置する非導電性の材料からなる載置板３を配設している。加熱室１は、載置板３の下方にあって、加熱室１を形成する底壁面４の略中央部にマイクロ波を放射する放射アンテナ５を配設している。この放射アンテナ５は、マイクロ波を伝送する導波管６の終端側に配置させ、導波管６の始端側にはマイクロ波を発生するマイクロ波発生手段であるマグネトロン７を設けている。 As shown in FIG. 1, the heating chamber 1 forms a radio wave-closed space by each wall surface formed of a metal material, and a heated object storage space 2 for storing the heated object in the heating chamber 1. Forming. In the heated object storage space 2, a placement plate 3 made of a non-conductive material on which the heated object is placed is disposed on the bottom surface. The heating chamber 1 is disposed below the mounting plate 3, and a radiation antenna 5 that radiates microwaves is disposed at a substantially central portion of the bottom wall surface 4 that forms the heating chamber 1. The radiating antenna 5 is disposed on the end side of a waveguide 6 that transmits microwaves, and a magnetron 7 that is a microwave generating means for generating microwaves is provided on the start end side of the waveguide 6.

また、加熱室１の左奥底には蒸気発生手段８を配設している。この蒸気発生手段８は、図２に示すように水溜凹部９、水溜凹部９を下方から加熱する水加熱手段１０および水溜凹部９の温度を検知する水溜凹部温度検知手段１１を備えている。また、ポンプ１５は貯水タンク１２、貯水タンク１２の水を、送水管１３および給水口１４を介して水溜凹部９に給水する。 Further, a steam generating means 8 is disposed at the left bottom of the heating chamber 1. As shown in FIG. 2, the steam generating means 8 includes a water reservoir recess 9, a water heating unit 10 that heats the water reservoir recess 9 from below, and a water reservoir recess temperature detector 11 that detects the temperature of the water reservoir recess 9. The pump 15 supplies water from the water storage tank 12 and the water storage tank 12 to the water reservoir recess 9 through the water supply pipe 13 and the water supply port 14.

また、加熱室１の左側面には複数の蒸気通流開孔部２０、２１を配置させている。複数の蒸気通流開孔部２０、２１は、互いに加熱室１の外側で連結手段２２を介して連結させている。そして、一方の蒸気通流開孔部２０は、蒸気発生手段８で発生した水蒸気を取り込む取込口で、他方の蒸気通流開孔部２１は連結手段２２を介して通流してきた水蒸気を加熱室１内に吹出す吹出口である。 In addition, a plurality of steam flow opening portions 20 and 21 are arranged on the left side surface of the heating chamber 1. The plurality of steam flow opening portions 20 and 21 are connected to each other via the connecting means 22 outside the heating chamber 1. One steam flow opening portion 20 is an intake port for taking in the water vapor generated by the steam generation means 8, and the other steam flow opening portion 21 is the water flow through the connection means 22. It is a blower outlet that blows out into the heating chamber 1.

また、蒸気通流手段２３は蒸気発生手段８で発生した水蒸気を蒸気通流開孔部２０に通流させるために配設している。この蒸気通流手段２３は、図２に示すように蒸気蓋２４とその周縁に設けた弾性材料からなるパッキン２５とで構成される。蒸気通流手段２３は、その内部に蒸気発生手段８と蒸気通流開孔部２０とを連結する空間２６を有した形状とし、加熱室１内の所定位置に着脱自在に実装して水蒸気が漏洩しないようにしている。 Further, the steam flow means 23 is disposed to flow the steam generated by the steam generation means 8 through the steam flow opening 20. As shown in FIG. 2, the steam flow means 23 includes a steam lid 24 and a packing 25 made of an elastic material provided on the periphery thereof. The steam flow means 23 has a shape having a space 26 for connecting the steam generation means 8 and the steam flow opening 20 inside thereof, and is detachably mounted at a predetermined position in the heating chamber 1 so that the water vapor is received. I try not to leak.

また、加熱室１に対して着脱自在に設け、加熱室扉（図示せず）を開閉して加熱室１から出入する載置皿３０は、該載置皿３０に載せられた被加熱物の略周囲に位置した左右および奥の側端部に結露水貯水部３１を有し、被加熱物収納空間２に収納することで載置皿３０の上方に小加熱空間３２を形成する。この載置皿３０は、マイクロ波を透過する材質にて構成している。また、蒸気通流開孔部２１は小加熱空間３２に水蒸気を吹出すように配置させている。また、加熱室１の上壁面には平面形のヒータ３３を備える。 Moreover, the mounting plate 30 that is detachably attached to the heating chamber 1 and that opens and closes the heating chamber door (not shown) to enter / exit the heating chamber 1 is an object to be heated placed on the mounting plate 30. Condensed water reservoirs 31 are provided at the left and right and rear side ends positioned substantially around, and a small heating space 32 is formed above the mounting tray 30 by being stored in the heated object storage space 2. The mounting tray 30 is made of a material that transmits microwaves. Further, the steam flow opening 21 is arranged so as to blow out water vapor into the small heating space 32. A planar heater 33 is provided on the upper wall surface of the heating chamber 1.

加熱室１の側壁面には、載置皿３０の左右及び奥の結露水貯水部３１の側上縁を支持する支持部３４ａ、３５ａと、蒸気が加熱室１の壁面に結露した結露水を結露水貯水部３１に導く、突起３４ｂ、３５ｂを加熱室１の上部と下部の左右および奥の壁面に配設している。載置皿３０は、表面をフッ素樹脂コーティングしたセラミックスからなり、結露水貯水部３１の上端部との間に５〜１０ｍｍの離隔距離を設け、図示しない満水量表示が刻印される。前記満水量表示は、高周波加熱装置の最長時間運転時の結露水量、すなわち水蒸気発生量の最大値である５００ｍｌを満水量とするよう表示される。結露水貯水部３１の容量は、最長時間運転時に生じる結露水が、使用者が載置皿３０を着脱する際に、載置皿を傾けることができる限度と、無意識に有する角度として想定される約１５°傾けても溢れない容量に対し、安全率１．２〜２を乗じた容量とした。 On the side wall surface of the heating chamber 1, support portions 34 a and 35 a that support the upper side edges of the dew condensation water storage unit 31 on the left and right and back of the mounting tray 30, and dew condensation water in which steam has condensed on the wall surface of the heating chamber 1 Protrusions 34b and 35b leading to the condensed water reservoir 31 are disposed on the left and right and back walls of the upper and lower portions of the heating chamber 1. The mounting tray 30 is made of a ceramic whose surface is coated with a fluororesin, and is provided with a separation distance of 5 to 10 mm between the upper end portion of the condensed water storage portion 31 and a full water amount display (not shown) is imprinted thereon. The full water amount display is performed so that the amount of condensed water during the longest operation time of the high-frequency heating device, that is, the maximum value of the amount of water vapor generated is 500 ml. The capacity of the dew condensation water storage unit 31 is assumed to be the angle at which the dew condensation water generated during the longest operation can tilt the mounting tray when the user attaches / detaches the mounting tray 30 and the angle that the user has unconsciously. The capacity that would not overflow even if tilted by about 15 ° was multiplied by a safety factor of 1.2 to 2.

なお、放射アンテナ５は、モータ４０によって回転駆動される。また、被加熱物収納空間２内の温度を検出する温度検知手段４１と、被加熱物の表面から発する赤外線量を、透過孔４２を介して検知して前記の表面温度を判定する赤外線検知手段４３とを備える。また、加熱制御を効果的に行うための加熱情報センシング関連の検出手段は、温度検知手段４１や赤外線検知手段４３のほかに、加熱室１内の湿度を検出する手段などを付帯させることができる。 The radiation antenna 5 is driven to rotate by a motor 40. Moreover, the temperature detection means 41 which detects the temperature in the to-be-heated object accommodation space 2, and the infrared detection means which detects the amount of infrared rays emitted from the surface of the to-be-heated object through the transmission hole 42, and determines the said surface temperature 43. In addition to the temperature detection means 41 and the infrared detection means 43, the detection means related to the heating information sensing for effectively performing the heating control can be accompanied by a means for detecting the humidity in the heating chamber 1 and the like. .

また、制御手段５０は、操作部（図示していない）からの操作入力信号や各検知手段からの信号に基づき、マイクロ波発生手段であるマグネトロン７、蒸気発生手段８の加熱手段である水加熱手段１０などの動作を制御して水蒸気を加熱室１に供給する。そして、制御手段５０は加熱条件、制御条件などは、記憶手段（制御手段と一体）に一時的あるいは恒久的に記憶される。操作部には表示部、自動加熱操作キー、手動加熱設定キー、加熱開始キーなどが配設される。 Further, the control means 50 is based on an operation input signal from an operation unit (not shown) and a signal from each detection means, and water heating that is a heating means for the magnetron 7 that is the microwave generation means and the steam generation means 8. Water vapor is supplied to the heating chamber 1 by controlling the operation of the means 10 and the like. The control means 50 stores the heating conditions, control conditions, etc. temporarily or permanently in the storage means (integrated with the control means). The operation unit includes a display unit, an automatic heating operation key, a manual heating setting key, a heating start key, and the like.

以上のように構成された本発明の実施の形態１における高周波加熱装置の動作を説明する。 The operation of the high-frequency heating device configured as described above in Embodiment 1 of the present invention will be described.

ユーザが、加熱を行う被加熱物と、そのメニューに合った加熱条件を、操作部からの操作により制御手段５０に命令されると、被加熱物収納空間２の載置板３または、小加熱空間３２の載置皿３０上に載置された被加熱物の加熱が開始される。制御手段５０はマイクロ波発生手段であるマグネトロン７、水加熱手段１０の動作を加熱条件に従って制御を開始する。 When the user instructs the control means 50 to operate the object to be heated and the heating conditions suitable for the menu by operating the operation unit, the mounting plate 3 of the object to be heated storage space 2 or the small heating Heating of the object to be heated placed on the placing tray 30 in the space 32 is started. The control means 50 starts controlling the operations of the magnetron 7 and the water heating means 10 which are microwave generation means according to the heating conditions.

冷めた被加熱物をあたため再加熱する場合、制御手段５０は、まずマグネトロン７を動作させると同時に赤外線検知手段４３の検知信号を取り込む。赤外線検知手段４３の検知信号により、周囲の温度と異なる温度領域あるいは一定時間加熱後に温度上昇が認められた領域に被加熱物があると検知する。そして、制御手段５０は、赤外線検知手段４３の検知信号に基づいて、被加熱物の存在領域での温度分布を時々刻々判別し、最高温度と最低温度との温度差が予め決めた既定値以上になると、ポンプ１５を動作させて水溜凹部９に所定量の水の給水を開始し、マグネトロン７の動作を停止する。そして、直ちに制御手段５０は、水溜凹部９の温度検知手段１１からの信号に応じて蒸気発生手段８の水が１００℃になるまで水加熱手段１０に通電し続ける。蒸気発生手段８は、発生蒸気量を水加熱手段１０の動作あるいはポンプ１５の動作による給水量によって可変することができる。 In the case where the cooled object to be heated is reheated, the control means 50 first operates the magnetron 7 and simultaneously receives the detection signal of the infrared detection means 43. Based on the detection signal of the infrared detecting means 43, it is detected that there is an object to be heated in a temperature region different from the ambient temperature or a region where a temperature rise is recognized after heating for a certain period of time. And the control means 50 discriminate | determines momentarily the temperature distribution in the presence area | region of a to-be-heated object based on the detection signal of the infrared detection means 43, and the temperature difference of the highest temperature and the lowest temperature is more than the predetermined default value. Then, the pump 15 is operated to start supplying a predetermined amount of water into the water reservoir recess 9 and the operation of the magnetron 7 is stopped. Immediately thereafter, the control means 50 continues to energize the water heating means 10 until the water in the steam generation means 8 reaches 100 ° C. in response to a signal from the temperature detection means 11 of the water reservoir recess 9. The steam generating means 8 can vary the amount of generated steam according to the amount of water supplied by the operation of the water heating means 10 or the operation of the pump 15.

仮に水溜凹部９内の水が全て蒸発すると、水溜凹部９の温度が所定温度を超え、水溜凹部温度検知手段１１は、水溜凹部９の温度が所定温度を超えたことを検知し、水加熱手段１０への通電を停止する。 If all of the water in the water reservoir recess 9 evaporates, the temperature of the water reservoir recess 9 exceeds a predetermined temperature, and the water reservoir recess temperature detection means 11 detects that the temperature of the water reservoir recess 9 exceeds a predetermined temperature, and the water heating means 10 is turned off.

蒸気発生手段８で発生した水蒸気は、空間２６内に充満し、次第に蒸気圧が上昇してくると、蒸気通流開孔部２０から連結手段２２を通じて、蒸気通流開孔部２１から被加熱物収納空間２または、小加熱空間３２に吹出される。吹出した水蒸気は、被加熱物に優先的に当たるように、蒸気通流開孔部２１の形状や角度などが設計されている。 When the steam generated by the steam generating means 8 fills the space 26 and the vapor pressure gradually increases, the steam flow opening 20 is heated from the steam flow opening 21 through the connection means 22. It is blown out into the object storage space 2 or the small heating space 32. The shape, angle, etc. of the steam flow opening 21 are designed so that the blown steam preferentially strikes the object to be heated.

しかしながら、加熱初期においてマイクロ波を用いることにより、被加熱物と加熱室壁面との間に、温度差が生じ（被加熱物の温度＞加熱室壁面の温度）ており、また水蒸気の発生量が多くなってくると、被加熱物収納空間２または、小加熱空間３２の空気は飽和状態となり、加熱室壁面に結露することになる。結露した水滴が凝集して、次第に大きくなってくると、表面張力や摩擦力に逆らって重力方向に流れ出す。なお、水蒸気を被加熱物収納空間２または、小加熱空間３２に吹出す前に、ヒータ３３に一定時間通電しておけば、加熱室１の天面への水蒸気の結露を抑制／防止することができる。 However, by using microwaves in the initial stage of heating, there is a temperature difference between the object to be heated and the wall surface of the heating chamber (temperature of the object to be heated> temperature of the wall surface of the heating chamber), and the amount of water vapor generated is When it increases, the air in the heated object storage space 2 or the small heating space 32 becomes saturated, and condensation occurs on the wall surface of the heating chamber. When the condensed water droplets aggregate and gradually increase, they flow out in the direction of gravity against the surface tension and frictional force. In addition, if the heater 33 is energized for a certain period of time before the steam is blown out to the heated object storage space 2 or the small heating space 32, the condensation of steam on the top surface of the heating chamber 1 is suppressed / prevented. Can do.

流れ出た結露水は、加熱室壁面を伝って突起３４ｂ、３５ｂ（載置皿３０が支持部３５ａにセットされている場合）から、結露水貯水部３１に滴下し、貯留される。 The condensed water that has flowed out is dripped and stored in the condensed water reservoir 31 from the projections 34b and 35b (when the mounting tray 30 is set on the support 35a) along the wall surface of the heating chamber.

従って、従来のように結露水が加熱室１内の底面に大量に溜まり、加熱室扉と加熱室との接触隙間から装置外の床面などに滴下することを防ぐことができ、使用者に手間のかかる作業を強いることの無い、使い勝手の良い高周波加熱装置とすることができるものである。 Accordingly, it is possible to prevent a large amount of dew condensation water from accumulating on the bottom surface in the heating chamber 1 as in the past and dripping from the contact gap between the heating chamber door and the heating chamber onto the floor surface outside the apparatus. This makes it possible to provide an easy-to-use high-frequency heating apparatus that does not require laborious work.

なお、上記実施の形態では結露水貯水部３１を、載置皿３０の左右および奥の側端部に設けたが、加熱室１の奥壁が構造的に複数の孔が開いておって結露水を案内する突起３４ｂ、３５ｂを設けるのが困難な場合には、載置皿３０の奥の側端部には結露水貯水部を設けないようにすることも可能である。 In the above embodiment, the dew condensation water storage unit 31 is provided on the left and right and back side end portions of the mounting tray 30, but the back wall of the heating chamber 1 is structurally provided with a plurality of holes and is dewed. In the case where it is difficult to provide the protrusions 34b and 35b for guiding water, it is also possible not to provide the dew condensation water storage part at the back side end part of the mounting tray 30.

（実施の形態２）
図３は本発明の実施の形態２における高周波加熱装置の断面図を示したものである。実施の形態１と同一要素については同一符号を付してその詳細な説明を省略する。 (Embodiment 2)
FIG. 3 shows a cross-sectional view of the high-frequency heating device according to Embodiment 2 of the present invention. The same elements as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

本実施の形態における高周波加熱装置は、載置皿３０の結露水貯水部３１の外底部に加熱手段を設けた構成が実施の形態１と相違し、それ以外の構成は同じとするものである。図に示すように、載置皿３０は、結露水貯水部３１を有し、被加熱物収納空間２に収納することで載置皿３０の上方に小加熱空間３２を形成する。載置皿３０は、表面をフッ素樹脂コーティングしたセラミックスからなり、結露水貯水部３１の外底面にはマイクロ波を吸収し発熱する発熱体６２を成形した構成とし、発熱体６２により結露水貯水部３１に貯水した結露水を加熱して蒸発させることができる。発熱体６２は、炭化珪素、酸化チタン、黒鉛、活性炭などを基材とした多孔質の焼結体で構成している。発熱特性としては、例えばマイクロ波電力５００Ｗを２分間照射することで、約２５０℃以上の温度に到達するものである。 The high-frequency heating device in the present embodiment is different from the first embodiment in that the heating means is provided on the outer bottom portion of the dew condensation water reservoir 31 of the mounting tray 30, and other configurations are the same. . As shown in the figure, the mounting tray 30 has a condensed water reservoir 31 and is stored in the heated object storage space 2 to form a small heating space 32 above the mounting tray 30. The mounting tray 30 is made of a ceramic whose surface is coated with a fluororesin, and has a configuration in which a heating element 62 that absorbs microwaves and generates heat is formed on the outer bottom surface of the condensed water storage section 31, and the condensed water storage section is formed by the heating element 62. The condensed water stored in 31 can be heated and evaporated. The heating element 62 is composed of a porous sintered body based on silicon carbide, titanium oxide, graphite, activated carbon or the like. As the heat generation characteristics, for example, a temperature of about 250 ° C. or more is reached by irradiating with microwave power of 500 W for 2 minutes.

以上のように構成された本発明の実施の形態２における高周波加熱装置の動作を図３、図２を参照し説明する。 The operation of the high-frequency heating device according to Embodiment 2 of the present invention configured as described above will be described with reference to FIGS.

冷めた被加熱物をあたため再加熱する場合、制御手段５０は、まずマグネトロン７を動作させると同時に赤外線検知手段４３の検知信号を取り込む。赤外線検知手段４３の検知信号により、周囲の温度と異なる温度領域あるいは一定時間加熱後に温度上昇が認められた領域に被加熱物があると検知する。 In the case where the cooled object to be heated is reheated, the control means 50 first operates the magnetron 7 and simultaneously receives the detection signal of the infrared detection means 43. Based on the detection signal of the infrared detecting means 43, it is detected that there is an object to be heated in a temperature region different from the ambient temperature or a region where a temperature rise is recognized after heating for a certain period of time.

そして、制御手段５０は、赤外線検知手段４３の検知信号に基づいて、被加熱物の存在領域での温度分布を時々刻々判別し、最高温度と最低温度との温度差が予め決めた既定値以上になると、ポンプ１５を動作させて蒸気発生手段８の水溜凹部９に所定量の水の給水を開始し、マグネトロン７の動作を停止する。この時、発熱体６２はマイクロ波によって加熱され、結露水貯水部６１は１００℃以上に加熱されている。 And the control means 50 discriminate | determines momentarily the temperature distribution in the presence area | region of a to-be-heated object based on the detection signal of the infrared detection means 43, and the temperature difference of the highest temperature and the lowest temperature is more than the predetermined default value. Then, the pump 15 is operated to start supplying a predetermined amount of water to the water reservoir recess 9 of the steam generating means 8, and the operation of the magnetron 7 is stopped. At this time, the heating element 62 is heated by the microwave, and the dew condensation water reservoir 61 is heated to 100 ° C. or higher.

そして、直ちに制御手段５０は、水溜凹部９の温度検知手段１１からの信号に応じて蒸気発生手段８の水が１００℃になるまで水加熱手段１０に通電し続ける。蒸気発生手段８は、発生蒸気量を水加熱手段１０の動作あるいはポンプ１５の動作による給水量によって可変することができる。 Immediately thereafter, the control means 50 continues to energize the water heating means 10 until the water in the steam generation means 8 reaches 100 ° C. in response to a signal from the temperature detection means 11 of the water reservoir recess 9. The steam generating means 8 can vary the amount of generated steam according to the amount of water supplied by the operation of the water heating means 10 or the operation of the pump 15.

しかしながら、加熱初期においてマイクロ波を用いることにより、被加熱物と加熱室壁面との間に、温度差が生じ（被加熱物の温度＞加熱室壁面の温度）ており、また水蒸気の発生量が多くなってくると、被加熱物収納空間２または、小加熱空間３２の空気は飽和状態となり、加熱室壁面に結露することになる。結露した水滴が凝集して、次第に大きくなってくると、表面張力や摩擦力に逆らって重力方向に流れ出す。なお、水蒸気を被加熱物収納空間２または、小加熱空間３２に吹出す前に、ヒータ３３に一定時間通電しておけば、加熱室天面への水蒸気の結露を抑制／防止することができる。 However, by using microwaves in the initial stage of heating, there is a temperature difference between the object to be heated and the wall surface of the heating chamber (temperature of the object to be heated> temperature of the wall surface of the heating chamber), and the amount of water vapor generated is When it increases, the air in the heated object storage space 2 or the small heating space 32 becomes saturated, and condensation occurs on the wall surface of the heating chamber. When the condensed water droplets aggregate and gradually increase, they flow out in the direction of gravity against the surface tension and frictional force. If the heater 33 is energized for a certain period of time before the steam is blown out to the heated object storage space 2 or the small heating space 32, dew condensation on the top surface of the heating chamber can be suppressed / prevented. .

流れ出た結露水は、加熱室壁面を伝って突起３４ｂ、３５ｂから、１００℃以上に加熱された結露水貯水部３１に滴下し、即座に加熱蒸発し、被加熱物を周囲近傍から湿潤する。 Condensed water that has flowed out is dripped onto the condensed water reservoir 31 heated to 100 ° C. or more from the protrusions 34b and 35b along the wall surface of the heating chamber, and is immediately heated and evaporated to wet the object to be heated from the vicinity.

マイクロ波は被加熱物を加熱する間、間欠的に入力され、非加熱物および発熱体６２を加熱する。従って、非加熱物は、蒸気通流開孔部２１からの水蒸気と、非加熱物の周囲近傍からの水蒸気によって湿潤・加熱される。 The microwave is intermittently input while heating the object to be heated, and heats the non-heated object and the heating element 62. Accordingly, the non-heated material is wetted and heated by the water vapor from the steam flow opening 21 and the water vapor from around the non-heated material.

以上の構成とすることにより、比較的温度が高い状態の（一般的には５０℃程度）結露水を加熱蒸発させるため、エネルギーの消費を抑制できるとともに、被加熱物の近傍から水蒸気を発生させることで、発生した水蒸気が壁面に再結露する可能性が少なく、効率的に被加熱物に水蒸気を導くことができるものである。 With the above configuration, the condensed water having a relatively high temperature (generally about 50 ° C.) is heated and evaporated, so that energy consumption can be suppressed and water vapor is generated from the vicinity of the object to be heated. Thus, there is little possibility that the generated water vapor will be condensed again on the wall surface, and the water vapor can be efficiently guided to the object to be heated.

なお、本実施の形態では、発熱体６２は結露水貯水部３１のみを加熱するように形成したが、例えば、載置皿３０に魚や鶏肉などを載せてグリル調理する場合には、発熱体６２を載置皿の外底面全体に形成することにより、加熱室内に水蒸気を供給し表面の乾燥を抑制しながら、加熱室内の天面に設けられたグリルヒータ（ヒータ３３）およびマイクロ波による載置皿の発熱によって、加熱調理を行うとともに、結露水貯水部から発生した水蒸気を効果的に被加熱物に導き湿潤させることができる。よって、マイクロ波が、魚や鶏肉に直接及ぶことはなく、おいしく加熱調理できるものである。 In the present embodiment, the heating element 62 is formed so as to heat only the dew condensation water reservoir 31. However, for example, when cooking a grill by placing fish or chicken on the mounting plate 30, the heating element 62. Is formed on the entire outer bottom surface of the mounting tray, so that steam is supplied into the heating chamber and the drying of the surface is suppressed, while the grill heater (heater 33) provided on the top surface of the heating chamber and the microwave mounting While cooking is performed by the heat generated from the dish, water vapor generated from the condensed water reservoir can be effectively guided to the heated object and wetted. Therefore, the microwave does not reach fish and chicken directly, and can be cooked deliciously.

以上のように、本発明における高周波加熱装置は、加熱室内に供給された水蒸気が、壁面などで結露し生じた結露水を、回収貯留することで、加熱室扉と加熱室との接触隙間から装置外の床面などに滴下することを防ぐことができ、使用者に余計な手間を強いることを無くすことができるので、スチームを付加する電子レンジ、オーブンレンジ、オーブンあるいはグリラーなどと複合させた調理装置の加熱調理機器として有用である。 As described above, the high-frequency heating device according to the present invention recovers and stores the dew condensation water generated by condensation of water vapor supplied to the heating chamber on the wall surface or the like, thereby reducing the contact gap between the heating chamber door and the heating chamber. It can be prevented from dripping onto the floor surface outside the device, and it can eliminate the extra effort of the user, so it is combined with a microwave oven, microwave oven, oven or griller that adds steam. It is useful as a cooking device for cooking equipment.

本発明の実施の形態１における高周波加熱装置の断面図Sectional drawing of the high frequency heating apparatus in Embodiment 1 of this invention 本発明の実施の形態１における高周波加熱装置の要部の拡大断面図The expanded sectional view of the principal part of the high frequency heating apparatus in Embodiment 1 of this invention 本発明の実施の形態２における高周波加熱装置の断面図Sectional drawing of the high frequency heating apparatus in Embodiment 2 of this invention

符号の説明Explanation of symbols

１加熱室
８蒸気発生手段
３０載置皿
３１結露水貯水部
３４ｂ、３５ｂ突起
６２発熱体（加熱手段） DESCRIPTION OF SYMBOLS 1 Heating chamber 8 Steam generating means 30 Mounting tray 31 Condensate water storage part 34b, 35b Protrusion 62 Heating body (heating means)

Claims

被加熱物を収納し加熱する加熱室と、前記加熱室に供給する水蒸気を発生する蒸気発生手段と、前記加熱室に着脱自在に設けられた載置皿と、前記加熱室に供給された水蒸気が結露した結露水を貯留する結露水貯水部を有し、前記結露水貯水部は結露水が前記加熱室内の前記載置皿上部に位置した突起から流れ伝って貯留されるようにした加熱調理装置。 A heating chamber for storing and heating an object to be heated, a steam generating means for generating steam to be supplied to the heating chamber, a mounting plate detachably provided in the heating chamber, and steam supplied to the heating chamber A dew condensation water storage unit for storing dew condensation water that has condensed, wherein the dew condensation water storage unit is stored in a manner that the dew condensation water flows from a protrusion located on the top of the plate in the heating chamber. apparatus.

前記結露水貯水部は貯留した結露水を、加熱室内に配設され被加熱物の略周囲に位置する加熱手段により、加熱蒸発させ蒸気を発生させるようにした請求項１に記載の加熱調理装置。 2. The cooking apparatus according to claim 1, wherein the dew condensation water storage unit heats and evaporates the stored dew condensation water by a heating unit disposed in a heating chamber and positioned substantially around the object to be heated. .

前記加熱手段は、マイクロ波を吸収して発熱する部材で構成した請求項２に記載の加熱調理装置。 The cooking apparatus according to claim 2, wherein the heating unit includes a member that absorbs microwaves and generates heat.

最長時間運転時に生じる結露水量は、満水量として結露水貯水部に表示した請求項１〜３のいずれか１項に記載の加熱調理装置。 The cooking apparatus according to any one of claims 1 to 3, wherein the amount of condensed water generated during the longest operation is displayed in the condensed water reservoir as a full water amount.

結露水貯水部の容量は、最長時間運転時に生じる結露水が、約１５°傾けても溢れない容量に対し、安全率１．２〜２を乗じた容量とした、請求項１〜４のいずれか１項に記載の加熱調理装置。
The capacity of the dew condensation water storage part is a capacity obtained by multiplying the capacity of the dew condensation water generated during the longest operation by a safety factor of 1.2 to 2 with respect to the capacity that does not overflow even if tilted by about 15 °. The heating cooking apparatus of Claim 1.