JP4416714B2 - Pressure cooker - Google Patents

Pressure cooker Download PDF

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JP4416714B2
JP4416714B2 JP2005232519A JP2005232519A JP4416714B2 JP 4416714 B2 JP4416714 B2 JP 4416714B2 JP 2005232519 A JP2005232519 A JP 2005232519A JP 2005232519 A JP2005232519 A JP 2005232519A JP 4416714 B2 JP4416714 B2 JP 4416714B2
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pressure
container
pan
pot
heating
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JP2007044304A (en
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賢一 伊藤
滋之 永田
政次 久木野
清 八木田
朋生 小林
昭彦 小林
正博 山崎
久夫 井坂
奈穂 美寿見
剛志 前田
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Mitsubishi Electric Corp
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Description

この発明は、蒸気の噴出を抑制することにより、圧力室内部を大気圧以上の圧力まで上昇させて調理を行う圧力加熱調理器に関し、特に食材を入れる鍋状容器を圧力室の内部に収容するようにして、鍋状容器の内側の圧力と外側の圧力とを同じとなるようにした圧力加熱調理器に関するものである。   The present invention relates to a pressure heating cooker that cooks by raising the pressure chamber to a pressure equal to or higher than the atmospheric pressure by suppressing the ejection of steam, and in particular, accommodates a pot-shaped container in which food is placed inside the pressure chamber. In this way, the present invention relates to a pressure cooker in which the pressure inside the pot-like container and the pressure outside are made the same.

従来、この種の圧力加熱調理器は、鍋状容器と、この鍋状容器の開口部を密閉する蓋体とを有しており、一般的には蓋体に調圧弁が配設されている。この調圧弁は、蓋体の内蓋側に設けた排気口を自重によって閉じる加圧機構を備えており、調理開始時は排気口を開放しておき、鍋状容器の内部が所定温度に上昇すると、または、所定時間経過すると、加圧機構を動作させて排気口を閉じ、鍋状容器内を大気圧以上の圧力まで上昇させる。そして、鍋状容器内の圧力が所定の圧力より高くなると、その圧力で加圧機構が押し上げられ、蒸気とともに圧力が大気に開放され、圧力が下がると、加圧機構が降下する。このように加圧機構が上下動することで、鍋状容器内が設定したピーク圧力に保持される。以上のように従来の圧力加熱調理器は、鍋状容器と蓋体とで圧力容器（圧力室）を構成して、食材の入っている鍋状容器内の圧力を高圧にして沸騰温度を高くして、少ない電力で食材を早く柔らかくおいしく調理できるようにしている（例えば、特許文献１参照）。   Conventionally, this type of pressure heating cooker has a pan-shaped container and a lid that seals the opening of the pan-shaped container, and a pressure regulating valve is generally provided on the lid. . This pressure regulating valve is equipped with a pressurization mechanism that closes the exhaust port provided on the inner lid side of the lid by its own weight. When cooking is started, the exhaust port is opened and the inside of the pan-like container rises to a predetermined temperature. Then, when a predetermined time has elapsed, the pressurizing mechanism is operated to close the exhaust port, and the inside of the pan-like container is raised to a pressure equal to or higher than the atmospheric pressure. And if the pressure in a pan-like container becomes higher than predetermined pressure, a pressurization mechanism will be pushed up with the pressure, a pressure will be open | released to air | atmosphere with steam, and if a pressure falls, a pressurization mechanism will fall. Thus, the inside of a pan-like container is hold | maintained at the set peak pressure by a pressure mechanism moving up and down. As described above, the conventional pressure cooker comprises a pressure vessel (pressure chamber) with a pan-like container and a lid, and the boiling temperature is increased by increasing the pressure in the pan-like vessel containing the ingredients. Thus, the food can be cooked quickly and softly with little electric power (see, for example, Patent Document 1).

特開２００２−１７５６７号公報JP 2002-17567 A

しかしながら、上述の特許文献１に記載のような従来の圧力加熱調理器（炊飯器）においては、鍋状容器（内鍋）の材質を、炭、ガラス、セラミックス、土器、および陶器等のように、強い衝撃に対して割れる性質を持つ材質のものとした場合、鍋状容器（内鍋）の壁面に内側から外側方向に作用する圧力によって、鍋状容器（内鍋）が破損することがあるという課題を有していた。また、鍋状容器（内鍋）の材質が、炭、土器等の多孔質の場合、鍋状容器（内鍋）の壁面に作用する圧力によって、食材の水分が多孔質の微細孔を通過して外側に滲み出るといった課題も有していた。   However, in the conventional pressure heating cooker (rice cooker) as described in Patent Document 1 described above, the material of the pot-shaped container (inner pot) is charcoal, glass, ceramics, earthenware, pottery, or the like. When the material has the property of breaking against strong impact, the pot-shaped container (inner pot) may be damaged by the pressure acting on the wall surface of the pot-shaped container (inner pot) from the inside to the outside. It had the problem that. In addition, when the material of the pot-shaped container (inner pot) is porous, such as charcoal or earthenware, the moisture in the foodstuff passes through the porous micropores due to the pressure acting on the wall surface of the pot-shaped container (inner pot). And had a problem of oozing out.

本発明は上述のような問題点に鑑みてなされたものであり、従来のように鍋状容器を圧力室の一部とするのではなく、圧力室の内部に鍋状容器全体を収容するようにして、鍋状容器の内側と外側の圧力を同じにすることにより、鍋状容器の破損と食材水分の滲み出しとを抑制することができる圧力加熱調理器を提供することを目的とする。   The present invention has been made in view of the above-described problems. Instead of making the pan-like container part of the pressure chamber as in the prior art, the entire pan-like container is accommodated inside the pressure chamber. Thus, an object of the present invention is to provide a pressure cooker that can suppress the breakage of the pot-shaped container and the exudation of the moisture of the ingredients by making the pressure inside and outside the pot-shaped container the same.

上述した課題を解決し、目的を達成するために、この発明に係る圧力加熱調理器は、蒸気の噴出を抑制することにより、圧力室内部を大気圧以上の圧力まで上昇させて調理を行う圧力加熱調理器であって、鍋状容器と、鍋状容器を収容する収容凹部が設けられた本体と、本体に設けられ鍋状容器を加熱する加熱手段と、本体に開閉可能に取り付けられ収容凹部の開口部を密閉して収容凹部とともに圧力室を形成する蓋体と、本体及び蓋体のいずれかに設けられ圧力室内の圧力を高圧に保つ調圧手段とを有する。   In order to solve the above-described problems and achieve the object, the pressure heating cooker according to the present invention suppresses the jet of steam, thereby increasing the pressure in the pressure chamber to a pressure equal to or higher than the atmospheric pressure for cooking. A heating cooker, a pot-shaped container, a main body provided with a receiving recess for receiving the pot-shaped container, a heating means provided in the main body for heating the pot-shaped container, and an opening for receiving and opening attached to the main body A lid that forms a pressure chamber together with the housing recess, and pressure adjusting means that is provided in either the main body or the lid and maintains the pressure in the pressure chamber at a high pressure.

この発明によれば、従来のように鍋状容器を圧力室の一部とするのではなく、圧力室の内部に鍋状容器全体を収容することで、鍋状容器の内側と外側の圧力とを同じとすることにより、鍋状容器の破損と水分の滲み出しとを防止することができる。   According to this invention, instead of making the pan-like container a part of the pressure chamber as in the prior art, by accommodating the entire pan-like container inside the pressure chamber, the pressure inside and outside the pan-like container By making the same, it is possible to prevent the pan-like container from being damaged and moisture from oozing out.

以下、本発明に係る圧力加熱調理器の実施の形態を図面に基づいて詳細に説明する。なお、この実施の形態によりこの発明が限定されるものではない。   DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a pressure heating cooker according to the present invention will be described in detail based on the drawings. Note that the present invention is not limited to the embodiments.

実施の形態．
図１はこの発明に係る実施の形態の圧力加熱調理器である電磁誘導加熱炊飯器の横断面図である。図１において、電磁誘導加熱炊飯器１００は、上部が開口する収納凹部１０か設けられた炊飯器本体１と、炊飯器本体１の後方上部に設けられた図示しないヒンジ部を介して炊飯器本体１の収納凹部１０を開閉自在に覆うように取り付けられ、さらに収容凹部１０の開口部を密閉して収容凹部１０とともに圧力室３０を形成する蓋体２と、蓋体２に設けられ圧力室３０内の圧力を高圧に保つ調圧手段であるソレノイド１６と、収容凹部１０内に着脱自在に収容される鍋状容器である内鍋３と、炊飯器本体１内に設けられて内鍋３を電磁誘導加熱する加熱手段である加熱コイル４とを有している。 Embodiment.
FIG. 1 is a cross-sectional view of an electromagnetic induction heating rice cooker which is a pressure heating cooker according to an embodiment of the present invention. In FIG. 1, an electromagnetic induction heating rice cooker 100 includes a rice cooker body 1 provided with a storage recess 10 having an upper opening, and a hinge portion (not shown) provided at the upper rear portion of the rice cooker body 1. 1 is attached so as to be openable and closable, and the opening of the housing recess 10 is sealed to form the pressure chamber 30 together with the housing recess 10, and the pressure chamber 30 provided in the lid 2. Solenoid 16 which is a pressure adjusting means for keeping the internal pressure at a high pressure, an inner pot 3 which is a pan-like container that is detachably accommodated in the accommodating recess 10, and an inner pot 3 provided in the rice cooker body 1. The heating coil 4 is a heating means for electromagnetic induction heating.

炊飯器本体１は、炊飯器本体１の外装および内装を構成する本体ケース５を有している。本体ケース５は、概略円筒状を成し炊飯器本体１の外側壁６ａおよび上枠６ｂを形成する上ケース６と、上ケース６と一体に構成され外周端部が上ケース６の外側壁６ａの下端部に結合して炊飯器本体１の底面７ａを形成する概略円板状の下ケース７と、概略円筒状を成し上端部が上ケース６の上枠６ｂに結合して炊飯器本体１の内側壁を形成し、かつ内鍋３の収容凹部１０の一部を形成する内ケース８と、概略椀状を成し内鍋３の下部を覆う形状に形成され上端部が内ケース８の下端部に一体に結合されて内ケース８とともに内鍋３の収容凹部１０を形成してさらに収容凹部１０の底面９ａを形成して下面側に加熱コイル４が配設されたコイル台９とによって構成されている。内ケース８の上端部は、所定幅が全周にわたって外方向に折り曲げられて形成されたような形状を成すフランジ部８ａとされている。そして、このフランジ部８ａ上に、内鍋３を支持する３つの支持突起８ｂが１２０度ずつ離れて形成されている。   The rice cooker body 1 has a body case 5 that constitutes the exterior and interior of the rice cooker body 1. The main body case 5 is formed in a substantially cylindrical shape and forms an outer wall 6a and an upper frame 6b of the rice cooker main body 1 and an upper case 6 and is configured integrally with the upper case 6, and an outer peripheral end portion is an outer wall 6a of the upper case 6. The lower case 7 which is joined to the lower end of the rice cooker body 1 to form the bottom surface 7a of the rice cooker body 1, and the upper case 6 is joined to the upper frame 6b of the upper case 6 which is substantially cylindrical and has a substantially cylindrical shape. An inner case 8 that forms a part of the housing recess 10 of the inner pot 3, and a shape that is substantially bowl-shaped and covers the lower part of the inner pot 3, and the upper end is the inner case 8. A coil base 9 that is integrally coupled to the lower end of the inner pot 3 together with the inner case 8 to form the accommodating recess 10 of the inner pot 3, further forms the bottom surface 9a of the accommodating recess 10, and the heating coil 4 is disposed on the lower surface side. It is constituted by. The upper end portion of the inner case 8 is a flange portion 8a having a shape that is formed by bending a predetermined width outward over the entire circumference. And on this flange part 8a, the three support protrusion 8b which supports the inner pot 3 is formed 120 degree | times apart.

コイル台９の下面に、電磁誘導加熱用の加熱コイル４が配設されている。加熱コイル４は、コイル台９の裏面の平坦部に設けられた内側コイル４ａと外周側の湾曲部に設けられた外側コイル４ｂとから構成されている。内側コイル４ａと外側コイル４ｂは、各々スパイラル状に旋回され直列に接続され、高周波電流が供給される。   A heating coil 4 for electromagnetic induction heating is disposed on the lower surface of the coil base 9. The heating coil 4 is composed of an inner coil 4a provided on the flat part on the back surface of the coil base 9 and an outer coil 4b provided on the curved part on the outer peripheral side. The inner coil 4a and the outer coil 4b are swirled in a spiral shape and connected in series, and are supplied with a high-frequency current.

収容凹部１０の底面９ａを形成するコイル台９のほぼ中心部には、鍋底温度センサ１３を配設するためのセンサ穴９ｂが穿孔されている。そして、センサ穴９ｂ内に、概略円柱状の鍋底温度センサ１３がセンサ穴９ｂから出没するように配設されている。そして、鍋底温度センサ１３は、底面７ａとの間に縮設された圧縮ばね１４に付勢されて、上端面を内鍋３の底部裏面に当接している。鍋底温度センサ１３は、このように上端面を内鍋３の底部裏面に当接した状態で内鍋３の温度を計測する。   A sensor hole 9b for placing the pan bottom temperature sensor 13 is formed at substantially the center of the coil base 9 forming the bottom surface 9a of the housing recess 10. And the substantially cylindrical pan-bottom temperature sensor 13 is arrange | positioned in the sensor hole 9b so that it may protrude from the sensor hole 9b. The pan bottom temperature sensor 13 is urged by a compression spring 14 that is contracted between the bottom surface 7 a and the upper end surface of the pan bottom temperature sensor 13 abuts against the bottom rear surface of the inner pan 3. The pan bottom temperature sensor 13 measures the temperature of the inner pan 3 in such a state that the upper end surface is in contact with the bottom rear surface of the inner pan 3.

蓋体２は、ほぼ中心部に、蒸気口２０ａを有する蒸気排出装置２０が着脱自在に装着される取付穴１８ａを備え蓋体２の上面側を形成する外蓋１８と、外蓋１８の下方に配設され、蒸気排出装置２０の下部開口に接続する調圧構造部２５を有して蓋体２の下面側を形成する内蓋１９とによって構成されている。外蓋１８の前面側には炊飯スイッチや予約スイッチ等を有する操作パネル１５が設けられている。   The lid body 2 is provided with an attachment hole 18a in which a steam discharge device 20 having a steam port 20a is detachably attached at substantially the center, and an outer lid 18 that forms the upper surface side of the lid body 2; And an inner lid 19 having a pressure regulating structure portion 25 connected to the lower opening of the steam discharge device 20 and forming the lower surface side of the lid body 2. An operation panel 15 having a rice cooking switch, a reservation switch, and the like is provided on the front side of the outer lid 18.

図２は収容凹部１０に内鍋３が収容される様子を示す斜視図である。図２において、内鍋３は、概略椀状を成す内鍋本体３ａと、この内鍋本体３ａの開口部から外方に全周にわたって鍔状に形成されたフランジ部３ｂとから構成されている。内鍋３の材質は、熱伝導が良好な炭素９５％〜１００％の焼成体を基材として構成し、内側にはフッ素コーティング等が施してある。また、焼成体は比較的割れ易いため、従来の金属系容器の板厚に対して略２〜５倍の板厚である４〜１０ｍｍで構成している。このため、焼成体を基材とした内鍋３であっても十分な強度が得られる。炭素、所謂炭により内鍋を構成すると、まず、炭が加熱されて赤外線を発生するので美味しいご飯を炊くことができる。また、炭の脱臭作用により水道水のカルキが吸収されて風味のある美味しいご飯を炊くことができる。   FIG. 2 is a perspective view showing a state in which the inner pot 3 is accommodated in the accommodating recess 10. In FIG. 2, the inner pot 3 is comprised from the inner pot main body 3a which comprises a substantially bowl shape, and the flange part 3b formed in the bowl shape over the perimeter to the outer side from the opening part of this inner pot main body 3a. . The material of the inner pot 3 is composed of a 95% to 100% carbon fired body having good heat conduction as a base material, and a fluorine coating or the like is applied to the inside. Moreover, since a sintered body is comparatively easy to break, it is composed of 4 to 10 mm, which is approximately 2 to 5 times the plate thickness of a conventional metal container. For this reason, even if it is the inner pot 3 which made the fired body a base material, sufficient intensity | strength is obtained. When the inner pot is composed of carbon, so-called charcoal, first, the charcoal is heated to generate infrared rays, so that delicious rice can be cooked. In addition, the charcoal deodorizing action absorbs the tap water and makes it possible to cook tasty and delicious rice.

図３は圧力室３０の構造を説明する為の要部の横断面図である。図３は圧力室３０を構成する部材が良く理解できるように、圧力室３０に関係のない部材を省略して示すものである。図４は図３のＡ部分の拡大図である。図５はパッキン１２の働きにより収容凹部１０と蓋体とが気密に接続される様子を示す図である。図３および図４において、圧力室３０の下部を構成する収納凹部１０は、炊飯器本体１の内側壁を形成する内ケース８と、概略椀状を成して内ケース８の下端部に一体に結合されたコイル台９と、内ケース８の上端部に形成されたフランジ部８ａに気密に接続された上ケース６の上枠６ｂとから構成されている。上枠６ｂの内側には、全周にわたって樹脂性のパッキン１２が内方に突出するように設けられている（図２参照）。   FIG. 3 is a cross-sectional view of the main part for explaining the structure of the pressure chamber 30. FIG. 3 is abbreviate | omitting and showing the member which is not related to the pressure chamber 30 so that the member which comprises the pressure chamber 30 can be understood well. FIG. 4 is an enlarged view of portion A in FIG. FIG. 5 is a view showing a state in which the housing recess 10 and the lid are connected in an airtight manner by the action of the packing 12. 3 and 4, the storage recess 10 that forms the lower part of the pressure chamber 30 is integrated with the inner case 8 that forms the inner wall of the rice cooker body 1 and the lower end of the inner case 8 in a generally bowl shape. And an upper frame 6b of the upper case 6 that is airtightly connected to a flange portion 8a formed at the upper end portion of the inner case 8. Inside the upper frame 6b, a resin packing 12 is provided so as to protrude inward over the entire circumference (see FIG. 2).

図３において、圧力室３０の上部を構成する蓋体２は、蓋体２の上面側を形成する外蓋１８と、外蓋１８の下面側を形成する内蓋１９とから構成されている。内蓋１９の外周縁部は、外蓋１８の外周部に気密に接続されている。内蓋１９に形成された調圧構造部２５には、調圧手段であるソレノイド１６と安全弁１７とが設けられている。収納凹部１０の底面９ａを形成するコイル台９のほぼ中心部に穿孔されたセンサ穴９ｂが穿孔されている。センサ穴９ｂをシールするシール手段として、鍋底温度センサ１３とともにセンサ穴９ｂを全体的に覆ってしまう樹脂カバー部材３９が設けられている。樹脂カバー部材３９は、圧力室３０内の圧力に十分耐えられる強度とされている。これにより、特に複雑な構造とすることなく、また、樹脂カバー部材３９を除いて部品点数を増やすことなく、比較的容易に圧力室３０が形成されている。なお、鍋底温度センサ１３は樹脂カバー部材３９を介して内鍋３に接触するので感度が落ちる。つまり、実際の鍋底温度センサ１３の温度変化に対して所定時間遅れてこれを検出するとともに、所定温度だけ低く検出してしまう。そのため、この所定値を考慮に入れて各種炊飯制御が行われる。なお、本実施の形態においては、鍋底温度センサ１３を底面９ａのほぼ中央に配置しているが、この位置に限定されるものではない。またこの鍋底温度センサ１３は接触のものであるが、これに限らず、例えば赤外線温度センサ等の非接触式のセンサを用いて、底面９ａと赤外線温度センサとの間を赤外線透過樹脂等で蓋をする構造としてもよい。このような非接触式のセンサを用いることにより、センサの感度が落ちることがなくなる。   In FIG. 3, the lid body 2 constituting the upper portion of the pressure chamber 30 includes an outer lid 18 that forms the upper surface side of the lid body 2 and an inner lid 19 that forms the lower surface side of the outer lid 18. The outer peripheral edge portion of the inner lid 19 is airtightly connected to the outer peripheral portion of the outer lid 18. The pressure regulating structure 25 formed on the inner lid 19 is provided with a solenoid 16 and a safety valve 17 as pressure regulating means. A sensor hole 9b is formed in the central portion of the coil base 9 that forms the bottom surface 9a of the housing recess 10. As a sealing means for sealing the sensor hole 9b, a resin cover member 39 that covers the entire sensor hole 9b together with the pan bottom temperature sensor 13 is provided. The resin cover member 39 is strong enough to withstand the pressure in the pressure chamber 30. As a result, the pressure chamber 30 can be formed relatively easily without a particularly complicated structure and without increasing the number of components except for the resin cover member 39. In addition, since the pan bottom temperature sensor 13 contacts the inner pan 3 through the resin cover member 39, sensitivity falls. In other words, this is detected with a predetermined time delay with respect to the actual temperature change of the pan bottom temperature sensor 13 and is detected lower by a predetermined temperature. Therefore, various rice cooking controls are performed taking this predetermined value into consideration. In the present embodiment, the pan bottom temperature sensor 13 is disposed substantially at the center of the bottom surface 9a. However, the present invention is not limited to this position. The pan bottom temperature sensor 13 is a contact type, but is not limited to this. For example, a non-contact type sensor such as an infrared temperature sensor is used to cover the bottom surface 9a and the infrared temperature sensor with an infrared transmitting resin or the like. It is good also as a structure which carries out. By using such a non-contact type sensor, the sensitivity of the sensor is not lowered.

図４において、上蓋１８の外周縁部には、全周にわたって系合用の段部１８ｂが形成されている。炊飯器本体１に対して蓋体２が閉じられたとき、この段部１８ｂが、上ケース６の上枠６ｂの内側に嵌る。このとき、図５に示すように、段部１８ｂの外周面が、上枠６ｂの内周面に設けられたパッキン１２を押し潰す。このようにして、収納凹部１０の開口部を蓋体２が密閉することにより圧力室３０が形成される。   In FIG. 4, a step portion 18 b for system integration is formed on the outer peripheral edge portion of the upper lid 18 over the entire circumference. When the lid body 2 is closed with respect to the rice cooker body 1, the step portion 18b fits inside the upper frame 6b of the upper case 6. At this time, as shown in FIG. 5, the outer peripheral surface of the stepped portion 18b crushes the packing 12 provided on the inner peripheral surface of the upper frame 6b. In this way, the pressure chamber 30 is formed by the lid 2 sealing the opening of the storage recess 10.

図２にて示したように、内鍋３が圧力室３０内にセットされる際、内鍋３のフランジ部３ｂが、内ケース８の上端部フランジ部８ａ上に突接された３つの支持突起８ｂに支持されてセットされる。そして、内鍋３が正常セットされた際、内鍋本体３ａの外周面と収容凹部１０と内周面との間には、所定の空間が形成される。そして、圧力室３０内において、内鍋３の内側の空間と内鍋３の外側の空間とは、隣り合う支持突起８ｂ間に形成された空間が連通路となることにより、連通している。そのため、圧力室３０内に圧力の変化があったときでも、両空間の圧力の大きさは同じとなる。   As shown in FIG. 2, when the inner pot 3 is set in the pressure chamber 30, the three support portions in which the flange portion 3 b of the inner pot 3 is brought into contact with the upper end flange portion 8 a of the inner case 8. It is supported and set by the protrusion 8b. And when the inner pot 3 is set normally, a predetermined space is formed between the outer peripheral surface of the inner pot main body 3a, the accommodating recess 10 and the inner peripheral surface. And in the pressure chamber 30, the space inside the inner pot 3 and the space outside the inner pot 3 are connected by the space formed between the adjacent support protrusions 8b being a communication path. Therefore, even when there is a change in pressure in the pressure chamber 30, the magnitude of the pressure in both spaces is the same.

図６は調圧手段であるソレノイド１６の動作を説明するための図である。調圧手段（調圧器）であるソレノイド１６は、電磁コイルを内蔵して、縮設されたバネと電磁コイルの磁力とによりプランジャ１６ｃを出入動作させる本体１６ａと、プランジャ１６ｃの先端に固定された調圧ボール１６ｂとを有している。本体１６ａは、通電されて調圧ボール１６ｂを引き込み（図６中実線で示す位置）、通電なしで調圧ボール１６ｂを押し出す（図６中点線で示す位置）。調圧ボール１６ｂは、圧力室３０と連通する通路開口１９ａ上方に配置されており、炊飯前又は炊飯初期にはプランジャ１６ｃによって押圧され、通路開口１９ａ上から外れた状態になっている（図６中点線で示す位置）。そして、圧力炊飯時には、ソレノイド１６に引き込まれて通路開口１９ａをボールの自重で閉鎖することにより、圧力室３０の内圧を高める。一方、この圧力室３０の内圧が、例えば、２０ｋＰａを超えると、圧力室３０内の蒸気が調圧ボール１６ｂを浮き上がらせるようにして、外部に排出されるようになっている。なお、安全弁１７は、圧力室３０の内圧が２５ｋＰａを超えると働き蒸気を外部に排出する。   FIG. 6 is a view for explaining the operation of the solenoid 16 which is a pressure adjusting means. A solenoid 16 that is a pressure regulating means (pressure regulator) has a built-in electromagnetic coil, and is fixed to a main body 16a for moving the plunger 16c in and out by a contracted spring and the magnetic force of the electromagnetic coil, and to the tip of the plunger 16c. And a pressure adjusting ball 16b. The main body 16a is energized to draw the pressure adjusting ball 16b (position indicated by a solid line in FIG. 6), and pushes out the pressure adjusting ball 16b without being energized (position indicated by a dotted line in FIG. 6). The pressure adjusting ball 16b is disposed above the passage opening 19a communicating with the pressure chamber 30, and is pressed by the plunger 16c before or at the beginning of cooking, and is in a state of being detached from the passage opening 19a (FIG. 6). (The position indicated by the middle dotted line). And at the time of pressure rice cooking, the internal pressure of the pressure chamber 30 is raised by being drawn into the solenoid 16 and closing the passage opening 19a with the weight of the ball. On the other hand, when the internal pressure of the pressure chamber 30 exceeds 20 kPa, for example, the steam in the pressure chamber 30 is discharged to the outside so as to lift the pressure adjusting ball 16b. The safety valve 17 works and discharges steam to the outside when the internal pressure of the pressure chamber 30 exceeds 25 kPa.

このような構成の電磁誘導加熱炊飯器１００においては、ユーザが、希望するカップ数の米と、その米を炊飯するのに要する分量の水を内鍋３内に入れ、この内鍋３を収納凹部１０にセットした後、希望するご飯の硬さや、炊き上がり時間等を、操作パネル１５を操作して設定し、炊飯スイッチを押す。制御手段である図示しないマイコンは、記憶されたプログラムに従って、予熱、炊飯（圧力炊飯）、むらし、及び保温の各工程を順次実行して炊飯動作を行う。調圧手段（調圧器）であるソレノイド１６は、マイコンに制御されて、圧力室３０内の圧力を高圧にして沸騰温度を高くして、少ない電力で米を早く柔らかくおいしく炊きあげる。   In the electromagnetic induction heating rice cooker 100 having such a configuration, the user puts a desired number of cups of rice and an amount of water required for cooking the rice into the inner pot 3 and stores the inner pot 3. After setting in the recess 10, the desired rice hardness, cooking time, etc. are set by operating the operation panel 15, and the rice cooking switch is pressed. A microcomputer (not shown), which is a control means, performs a rice cooking operation by sequentially executing steps of preheating, rice cooking (pressure rice cooking), unevenness, and heat retention according to a stored program. The solenoid 16 which is a pressure regulating means (pressure regulator) is controlled by the microcomputer to raise the pressure in the pressure chamber 30 to a high boiling temperature, and to cook rice quickly, softly and deliciously with a small amount of electric power.

以上のように、本実施の形態の電磁誘導加熱炊飯器１００においては、炊飯器本体１に開閉可能に取り付けられ収容凹部１０の開口部を密閉して収容凹部１０とともに圧力室３０を形成する蓋体２と、蓋体２に設けられ圧力室３０内の圧力を高圧に保つソレノイド１６とを装備している。そのため、圧力室３０の内部に内鍋３の全体を収容することで、内鍋３の内側と外側の圧力とを同じとすることができ、内鍋３の破損と食材の水分の滲み出しとを防止することができる。   As mentioned above, in the electromagnetic induction heating rice cooker 100 of this Embodiment, the lid | cover which is attached to the rice cooker main body 1 so that opening and closing is possible, seals the opening part of the accommodation recessed part 10, and forms the pressure chamber 30 with the accommodation recessed part 10. The body 2 and a solenoid 16 that is provided on the lid body 2 and maintains the pressure in the pressure chamber 30 at a high pressure are provided. Therefore, by accommodating the entire inner pot 3 inside the pressure chamber 30, the inner and outer pressures of the inner pot 3 can be made the same, and damage to the inner pot 3 and the exudation of moisture from the ingredients. Can be prevented.

なお、調圧手段は、ソレノイドを用いたものに限らず、例えば、通路開口１９ａ上に単におもりを設けるといったものであってもよい。ただしこのタイプの調圧器は電気的に制御することができないので、細かな炊飯制御はすることができない。なお、本実施の形態においては、調圧手段であるソレノイド１６は、蓋体２に設けられているが、炊飯器本体１に設けられるタイプのものであってもよい。   Note that the pressure adjusting means is not limited to the one using a solenoid, and for example, a weight may be simply provided on the passage opening 19a. However, this type of pressure regulator cannot be controlled electrically, so fine rice cooking control cannot be performed. In addition, in this Embodiment, although the solenoid 16 which is a pressure regulation means is provided in the cover body 2, the thing of the type provided in the rice cooker main body 1 may be sufficient.

また、本実施の形態の電磁誘導加熱炊飯器１００においては、圧力室３０内において、内鍋３内側の空間と内鍋３外側の空間とが連通されており、両空間の圧力の大きさが同じとなるようにされているので、内鍋３内側の空間と内鍋３外側の空間の圧力が確実に同じになるので、内鍋３の破損や内鍋３からの食材の水分の滲み出しを確実に防止することができる。   Moreover, in the electromagnetic induction heating rice cooker 100 of this Embodiment, in the pressure chamber 30, the space inside the inner pot 3 and the space outside the inner pot 3 are connected, and the magnitude | size of the pressure of both spaces is large. Since the pressure is the same in the space inside the inner pot 3 and the space outside the inner pot 3 because they are the same, the inner pot 3 is damaged or the moisture of the ingredients from the inner pot 3 oozes out. Can be reliably prevented.

また、本実施の形態においては、材質が多孔質であり、さらに詳細には、炭の焼成体でなる内鍋３に対して、内側と外側の圧力を同じにするので、多孔質の微細孔を通って漏れ出す食材の水分を防止することができ、炊飯器の性能をさらに十分に発揮することができる。   In the present embodiment, the material is porous, and more specifically, the inner and outer pressures are made the same for the inner pot 3 made of a charcoal fired body. It is possible to prevent moisture from leaking through the ingredients, and to fully demonstrate the performance of the rice cooker.

さらに、内鍋３にて調理される食材が米であり、加熱コイル４による加熱を制御して米を圧力炊飯する制御手段（マイコン）を装備しているので、少ない電力にて、早くしかもおいしくご飯を炊きあげることができる。   Furthermore, the food cooked in the inner pot 3 is rice, and since it is equipped with a control means (microcomputer) that controls the heating by the heating coil 4 and pressure cooks the rice, it is fast and delicious with less power. You can cook rice.

なお、本実施の形態は、電磁誘導加熱炊飯器であるが、本発明は電磁誘導加熱炊飯器に限らず、鍋状容器と、鍋状容器を収容する収容部が設けられた本体と、本体に設けられ鍋状容器を加熱する加熱手段とを有する加熱調理器であれば、適用することができる。   In addition, although this Embodiment is an electromagnetic induction heating rice cooker, this invention is not restricted to an electromagnetic induction heating rice cooker, The main body provided with the pot-shaped container and the accommodating part which accommodates a pot-shaped container, and a main body If it is a cooking-by-heating machine provided with the heating means which heats a pot-shaped container, it is applicable.

この発明は、鍋状容器に収納した食材に対して加熱して調理する加熱調理器に好適なものであり、特に炭、セラミック、ガラス、土器等の割れやすい材料の鍋状容器を装備する加熱調理器に好適なものであり、特に炭の焼成体でなる内鍋を装備して米を食材とする電磁誘導加熱炊飯器に適用されて好適なものである。   The present invention is suitable for a heating cooker that heats and cooks food stored in a pot-shaped container, and in particular, a heating equipped with a pot-shaped container made of a fragile material such as charcoal, ceramic, glass, and earthenware. It is suitable for a cooking device, and is particularly suitable for application to an electromagnetic induction heating rice cooker equipped with an inner pan made of charcoal and using rice as a food material.

この発明に係る実施の形態の圧力加熱調理器である電磁誘導加熱炊飯器の横断面図である。It is a cross-sectional view of the electromagnetic induction heating rice cooker which is the pressure heating cooker of embodiment which concerns on this invention. 炊飯器本体の収容凹部に内鍋が収容される様子を示す斜視図である。It is a perspective view which shows a mode that an inner pot is accommodated in the accommodation recessed part of a rice cooker main body. 炊飯器本体の圧力室の構造を説明する為の要部の横断面図である。It is a cross-sectional view of the principal part for demonstrating the structure of the pressure chamber of a rice cooker main body. 図３のＡ部分の拡大図である。It is an enlarged view of A part of FIG. パッキンの働きにより収容凹部と蓋体とが気密に接続される様子を示す図である。It is a figure which shows a mode that an accommodation recessed part and a cover body are connected airtightly by the effect | action of packing. 調圧手段であるソレノイドの動作を説明するための図である。It is a figure for demonstrating operation | movement of the solenoid which is a pressure regulation means.

符号の説明Explanation of symbols

１ 炊飯器本体（本体）
２ 蓋体
３ 内鍋（鍋状容器）
４ 加熱コイル（加熱手段）
５ 本体ケース
６ 上ケース
７ 下ケース
８ 内ケース
８ａ フランジ部
８ｂ 支持突起
９ コイル台
１０ 収容凹部
１２ パッキン
１３ 鍋底温度センサ
１５ 操作パネル
１６ ソレノイド（調圧器：調圧手段）
１７ 安全弁
１８ 上蓋
１９ 内蓋
２０ 蒸気排出装置
２０ａ 蒸気噴出口
３０ 圧力室
３９ 樹脂カバー部材（シール手段）
１００，１１０ 電磁誘導加熱炊飯器 1 Rice cooker body (main body)
2 Lid 3 Inside pan (pan-shaped container)
4 Heating coil (heating means)
DESCRIPTION OF SYMBOLS 5 Main body case 6 Upper case 7 Lower case 8 Inner case 8a Flange part 8b Support protrusion 9 Coil stand 10 Receiving recessed part 12 Packing 13 Pan bottom temperature sensor 15 Operation panel 16 Solenoid (pressure regulator: pressure regulator)
17 Safety valve 18 Upper lid 19 Inner lid 20 Steam discharge device 20a Steam outlet 30 Pressure chamber 39 Resin cover member (sealing means)
100,110 Electromagnetic induction heating rice cooker

Claims (3)

蒸気の噴出を抑制することにより、圧力室内部を大気圧以上の圧力まで上昇させて調理
を行う圧力加熱調理器であって、
鍋状容器と、
前記鍋状容器を収容し、支持する収容凹部が設けられた本体と、
前記本体に設けられ前記鍋状容器を加熱する加熱手段と、
前記本体に開閉可能に取り付けられ前記収容凹部の開口部を密閉して前記収容凹部とと
もに前記圧力室を形成する蓋体と、
前記本体及び前記蓋体のいずれかに設けられ前記圧力室内の圧力を高圧に保つ調圧手段
とを有し、
前記収容凹部は、その上端部に所定幅が全周にわたって外方向に形成されるフランジ部を成し、前記フランジ部上に、前記鍋状容器を支持する支持突起が複数形成され、
前記鍋状容器の材質が、多孔質の炭であり、該鍋状容器は、粉体の炭を固め、それを焼成して作製され、
前記鍋状容器は、概略椀状を成し、その開口部から外方に全周にわたって鍔状に形成されたフランジ部を有し、このフランジ部の裏面を、前記収容凹部のフランジ部の複数の支持突起に支持されて前記収容凹部内にセットされる
ことを特徴とする圧力加熱調理器。 A pressure heating cooker that cooks by raising the pressure chamber to a pressure equal to or higher than atmospheric pressure by suppressing the ejection of steam,
A pot-shaped container,
It said pot-like container and yield capacity, a body accommodating recess is provided you support,
A heating means provided in the main body for heating the pan-like container;
A lid body forming the pressure chamber to be <br/> and the accommodating recess openably attached to the main body sealing the opening of the accommodating recess,
Pressure adjusting means that is provided in any of the main body and the lid and maintains the pressure in the pressure chamber at a high pressure;
The accommodating recess comprises a flange portion having a predetermined width outwardly formed on the upper end thereof, and a plurality of support protrusions for supporting the pan-like container are formed on the flange portion,
The pot-shaped container is made of porous charcoal, and the pot-shaped container is made by solidifying powdered charcoal and firing it .
The pan-like container has a generally bowl-like shape, and has a flange portion formed in a bowl shape over the entire circumference from the opening thereof, and a plurality of flange portions of the housing recess are provided on the back surface of the flange portion. A pressure heating cooker, which is supported by the support protrusions of the container and is set in the housing recess . 前記収容凹部の壁面に形成されたセンサ穴内に配設され前記鍋状容器の温度を測定する
温度センサをさらに有し、前記センサ穴には、前記圧力室内の圧力が保持されるようにシール手段が設けられている
ことを特徴とする請求項１に記載の圧力加熱調理器。 It further has a temperature sensor disposed in a sensor hole formed in the wall surface of the housing recess, and measures the temperature of the pan-like container, and the sealing means holds the pressure in the pressure chamber in the sensor hole. The pressure heating cooker according to claim 1, wherein: 前記鍋状容器にて調理される食材が米であり、
前記加熱手段による加熱を制御して前記米を圧力炊飯する制御手段をさらに有する
ことを特徴とする請求項１または２に記載の圧力加熱調理器。 The food cooked in the pan-like container is rice,
The pressure heating cooker according to claim 1 or 2 , further comprising control means for controlling the heating by the heating means to pressure-cook the rice.
JP2005232519A 2005-08-10 2005-08-10 Pressure cooker Expired - Fee Related JP4416714B2 (en)

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Cited By (1)

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CN103892700A (en) * 2012-12-30 2014-07-02 美的集团股份有限公司 Electric pressure cooker

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JP2010075521A (en) * 2008-09-26 2010-04-08 Sanyo Electric Co Ltd Electric rice cooker
JP2013244106A (en) * 2012-05-24 2013-12-09 Tiger Vacuum Bottle Co Ltd Electric rice cooker
CN106473623A (en) * 2016-12-02 2017-03-08 深圳市茶大师茶具电器有限公司 A kind of multifunction combined health-promotion kettle
CN107397431A (en) * 2017-08-29 2017-11-28 浙江尚厨炊具有限公司 A kind of split-type electric pressure cooker
CN110037565B (en) * 2019-05-27 2023-11-10 冯校良 Electric cooker support assembly
JP7412729B2 (en) * 2019-09-09 2024-01-15 アイリスオーヤマ株式会社 electric pressure cooker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103892700A (en) * 2012-12-30 2014-07-02 美的集团股份有限公司 Electric pressure cooker
CN103892700B (en) * 2012-12-30 2016-07-06 美的集团股份有限公司 Electric pressure cooking saucepan

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