JP3596457B2 - rice cooker - Google Patents

rice cooker Download PDF

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Publication number
JP3596457B2
JP3596457B2 JP2000338649A JP2000338649A JP3596457B2 JP 3596457 B2 JP3596457 B2 JP 3596457B2 JP 2000338649 A JP2000338649 A JP 2000338649A JP 2000338649 A JP2000338649 A JP 2000338649A JP 3596457 B2 JP3596457 B2 JP 3596457B2
Authority
JP
Japan
Prior art keywords
main body
metal material
lid
insulating material
rice cooker
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2000338649A
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Japanese (ja)
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JP2002142969A (en
Inventor
雅史 久保
政博 小山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Corp
Panasonic Holdings Corp
Original Assignee
Panasonic Corp
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Corp, Matsushita Electric Industrial Co Ltd filed Critical Panasonic Corp
Priority to JP2000338649A priority Critical patent/JP3596457B2/en
Publication of JP2002142969A publication Critical patent/JP2002142969A/en
Application granted granted Critical
Publication of JP3596457B2 publication Critical patent/JP3596457B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Description

【0001】
【発明の属する技術分野】
本発明は、一般家庭、あるいは業務用に使用する炊飯器に関するものである。
【0002】
【従来の技術】
近年、炊飯器はコンパクト化され、例えば図5に示されるような構成であった。図5において、1は本体で、上面が開口し、この本体1内部に鍋2の収納部である保護枠3が配設され、この保護枠3の外側に鍋2を誘導加熱するための加熱コイル4及び、制御回路5設けら、本体1と加熱コイル4及び制御回路5との距離を最小限にしてコンパクト化している。保護枠3の底部には鍋2の温度を検知する温度検知センサー6が設けられ、この温度検知センサー6の温度検知により加熱コイル4の通電を制御してご飯の炊き上げ及び保温を行なう。
【0003】
7は本体1の上面開口部を覆う蓋で、この蓋7は本体1の上部を構成する上枠8の上部に一体成形されたヒンジ部材9にピン10を介して回動自在に支持されている。11は外蓋カバーで、この外蓋カバ11は蓋7の内側に固定されている。この外蓋カバ−11の下面には放熱板ユニット12が着脱自在に取付けられている。この放熱板ユニット12の上部には外蓋カバー11に支持されている蓋加熱手段である蓋加熱コイル13が位置している。この蓋加熱コイル13の電磁作用により放熱板ユニット12を発熱することにより、炊飯時に上面から加熱してご飯全体を包み込むようにたき上げるとともに、保温時には上面からの加熱と鍋2の加熱手段である誘導コイル4の加熱により、ご飯の温度を均一に維持することができる。
【0004】
14は放熱板ユニット12の温度を検知する蓋センサーで放熱板ユニット12側に圧接するように設けられ、この蓋センサー14の検知により蓋加熱コイル13の通電を制御する。また、15は蓋7の蒸気通路16に着脱自在に設けられた蒸気筒である。
【0005】
【発明が解決しようとする課題】
近年、お手入れ性の問題や、外観上の問題から金属製の本体が求められるようになってきている。しかしながら、上述の炊飯器では、コンパクト化しているため本体1を金属性にすると、制御回路5と本体1の絶縁距離を確保するために隙間を大きく取る必要があるため、本体1が大きくなってしまう。また、絶縁距離を確保していても、落下や外部からの力により本体1がへこんだ場合絶縁距離が確保できなくなるという問題があった。
【0006】
本発明は、上記課題を解決するもので、本体の外郭を金属材で構成した安全でコンパクトな炊飯器を提供するものである。
【0007】
【課題を解決するための手段】
上記課題を解決するために、本発明は、本体と、前記本体内に着脱自在に収納される鍋と前記本体内に設けられ前記鍋を加熱する加熱手段と、前記本体の上面開口部を覆い開閉自在に設けた蓋とを備え、前記本体の外郭は外側を金属材で構成し、内側を絶縁材で構成するものである。
【0008】
【発明の実施の形態】
請求項1記載の発明は、本体と、前記本体内に着脱自在に収納される鍋と、前記本体内に設けられ前記鍋を加熱する加熱手段と、前記本体の上面開口部を覆い開閉自在に設けた蓋とを備え、前記本体の外郭は外側を金属材で構成し、内側を絶縁材で構成することにより、コンパクトな形状で絶縁を確保し安全性を高めて、お手入れ性及び外観の良い金属材で本体の外郭を構成することができる。
【0009】
請求項2記載の発明は、本体の外郭を、外側の金属材と内側の絶縁材を一体化して構成することにより、お手入れ性及び外観の良い金属材の外郭で、加工性及び、組み立て性を向上することができる。
【0010】
請求項3記載の発明は、外側の金属材と内側の絶縁材との間に隙間を設けて構成することにより、お手入れ性及び外観の良い金属材の外郭で、断熱性を向上させることができる。
【0011】
請求項4記載の発明は、外側の金属材と内側の絶縁材との間に断熱材を設けることにより、さらに断熱性を向上させることができる。
【0012】
請求項5記載の発明は、本体を上枠と下枠に2分割し、外側の金属材を前記上枠と前記下枠で挟持することにより、金属材のみを簡単に分離出来、分解性及び、リサイクル性を良くすることが出来る。
【0013】
【実施例】
(実施例1)
本発明の一実施例について、図1を用いて説明する。
【0014】
図1において、本体17は、上面が開口し、この本体17内部に鍋18の収納部である保護枠19が配設され、この保護枠19の外側に加熱手段が設けられている。本実施例では、加熱手段として鍋18を誘導加熱するための加熱コイル20及び、制御回路21が設けられている。保護枠19の底部には鍋18の温度を検知する温度検知センサー22が設けられ、この温度検知センサー22の温度検知により制御回路21で加熱コイル20の通電を制御してご飯の炊き上げ及び保温を行なう。
【0015】
23は本体17の上面開口部を覆う蓋で、この蓋23は本体17の上部を構成する上枠24の上部に一体成形されたヒンジ部材25にピン26を介して回動自在に支持されている。27は外蓋カバーで、この外蓋カバー27は蓋23の内側に固定されている。この外蓋カバ−27の下面には放熱板ユニット28が着脱自在に取付けられている。この放熱板ユニット28の上部には外蓋カバー27に支持されている蓋加熱手段である蓋加熱コイル29が位置している。この蓋加熱コイル29の電磁作用により放熱板ユニット28を発熱することにより、炊飯時に上面から加熱してご飯全体を包み込むようにたき上げるとともに、保温時には上面からの加熱と鍋18の加熱手段である誘導コイル20の加熱により、ご飯の温度を均一に維持することができる。
【0016】
30は放熱板ユニット28の温度を検知する蓋センサーで放熱板ユニット28側に圧接するように設けられ、この蓋センサー30の検知により蓋加熱コイル29の通電を制御する。また、31は蓋23の蒸気通路32に着脱自在に設けられた蒸気筒である。
【0017】
本体18は上面開口部を形成する上枠24と、底面を構成する下枠34とで構成され、さらに、本体18の外郭の外側は、ステンレスあるいはカラー鋼板等の金属材で構成された外側部材35、内側は絶縁材で構成された内側部材36からなっている。内側部材36は下枠34を一体化して構成している。金属材で構成された外側部材35の内側に絶縁材で構成された内側部材36を配しているため、本体18内の充電部である加熱コイル20や制御回路21との距離を小さく出来、本体18をコンパクト化出来るとともに、落下や、外部からの力により本体18の外郭である外側部材35が変形して凹んでも金属材で構成された外側部材35が充電部に触れる事もないため安全である。
【0018】
本実施例では、内側部材36と下枠34を一体化して構成しているが、内側部材36は上枠24と一体化してもよく、また、上枠24、下枠34とは別部材として設けても良い。
【0019】
(実施例2)
次に、第2の実施例について図2を用いて説明する。図2は本体17の外郭部分のみを示す図である。図2において、本体17の外郭は金属材の外側部材37と絶縁材の内側部材38が一体に形成されている。そのため、外側部材37と内側部材38の厚みを最小限にする事が出来、さらに本体17をコンパクト化する事が出来る。
【0020】
外側部材37と内側部材38を一体に形成する手段としては絶縁部材の内側部材38を合成樹脂としインサート成形する方法や、外側部材37に内側部材38を貼り付ける構成としても良い。
【0021】
また、本実施例では外郭の側面部から底全体を外側部材37で覆っているが、図1のように、外郭の側面部のみに外側部材37を一体に形成しても良い。
【0022】
(実施例3)
次に、第3の実施例について図3を用いて説明する。図3において、金属材からなる外側部材39と絶縁材からなる内側部材40との間には隙間41を設けている。隙間41を設けることにより空気の静止層を構成し、断熱効果を高めて消費電力量を減らすことが出来る。また、外側部材39は本体17の上面開口部を構成する上枠42と底面を構成する下枠43とで挟持した構成としている。この構成により、下枠43を外せば金属材で出来た外側部材39を簡単に分離することが出来、分解性及びリサイクル性こ向上することが出来る。
【0023】
(実施例4)
最後に、第4の実施例について図4を用いて説明する。図4において、金属材からなる外側部材44と絶縁材からなる内側部材45との間に断熱材46を設けている。この構成により、断熱材46を簡単に保持することが出来、コンパクトで安全性の高い構成で断熱効果を高めることが出来る。
【0024】
【発明の効果】
以上のように、請求項1記載の発明によれば、コンパクトな形状で絶縁を確保し安全性を高めて、お手入れ性及び外観の良い金属材で本体の外郭を構成することができる。
【0025】
また、請求項2記載の発明によれば、本体の外郭を、外側の金属材と内側の絶縁材を一体化して構成することにより、お手入れ性及び外観の良い金属材の外郭で、加工性及び、組み立て性を向上することができる。
【0026】
また、請求項3記載の発明によれば、特に、外側の金属材と内側の絶縁材との間に隙間を設けて構成することにより、お手入れ性及び外観の良い金属材の外郭で、断熱性を向上させることができる。
【0027】
また、請求項4記載の発明によれば、特に、外側の金属材と内側の絶縁材との間に断熱材を設けることにより、さらに断熱性を向上させることができる。
【0028】
また、請求項5記載の発明によれば、特に、本体を上枠と下枠に2分割し、外側の金属材を前記上枠と前記下枠で挟持することにより、金属材のみを簡単に分離出来、分解性及び、リサイクル性を良くすることが出来る。
【図面の簡単な説明】
【図1】本発明の実施例1の炊飯器の断面図
【図2】本発明の実施例2の炊飯器の本体外郭部分のみを示す断面図
【図3】本発明の実施例3の炊飯器の本体外郭部分を示す断面図
【図4】本発明の実施例4の炊飯器の本体外郭部分を示す断面図
【図5】従来の炊飯器の断面図
【符号の説明】
17 本体
18 鍋
20 加熱コイル
23 蓋
33、42 上枠
34、43 下枠
35、37、39、44 外側部材
36、38、40、45 内側部材
41 隙間
46 断熱材
[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a rice cooker used for general household or business use.
[0002]
[Prior art]
In recent years, rice cookers have been made compact, for example, as shown in FIG. In FIG. 5, reference numeral 1 denotes a main body, an upper surface of which is open, a protection frame 3 serving as a storage portion of the pot 2 is provided inside the main body 1, and heating for induction heating the pot 2 is provided outside the protection frame 3. The coil 4 and the control circuit 5 are provided, and the distance between the main body 1 and the heating coil 4 and the control circuit 5 is minimized to make it compact. A temperature detection sensor 6 for detecting the temperature of the pan 2 is provided at the bottom of the protection frame 3, and the temperature detection sensor 6 controls the energization of the heating coil 4 to cook rice and keep the temperature.
[0003]
Reference numeral 7 denotes a lid which covers an upper opening of the main body 1. The lid 7 is rotatably supported via a pin 10 by a hinge member 9 integrally formed on an upper portion of an upper frame 8 constituting an upper portion of the main body 1. I have. Reference numeral 11 denotes an outer lid cover, and the outer lid cover 11 is fixed inside the lid 7. A radiator plate unit 12 is detachably attached to the lower surface of the outer cover 11. A lid heating coil 13 serving as a lid heating means supported by the outer lid cover 11 is located above the radiator plate unit 12. By heating the radiator plate unit 12 by the electromagnetic action of the lid heating coil 13, the radiator plate unit 12 is heated from the upper surface at the time of cooking rice so as to wrap the whole rice, and is a means for heating from the upper surface and heating the pan 2 at the time of keeping the temperature. By heating the induction coil 4, the temperature of the rice can be kept uniform.
[0004]
Reference numeral 14 denotes a lid sensor for detecting the temperature of the radiator plate unit 12, which is provided so as to be pressed against the radiator plate unit 12 side, and controls the energization of the lid heating coil 13 by the detection of the lid sensor 14. Reference numeral 15 denotes a steam cylinder which is detachably provided in the steam passage 16 of the lid 7.
[0005]
[Problems to be solved by the invention]
In recent years, a metal body has been demanded from the viewpoint of careability and appearance. However, in the above-mentioned rice cooker, if the main body 1 is made of metal because of its compactness, it is necessary to make a large gap in order to secure an insulation distance between the control circuit 5 and the main body 1, so that the main body 1 becomes large. I will. In addition, even if the insulation distance is secured, there is a problem that the insulation distance cannot be secured when the main body 1 is dented due to a fall or an external force.
[0006]
The present invention solves the above-mentioned problems, and provides a safe and compact rice cooker in which an outer shell of a main body is made of a metal material.
[0007]
[Means for Solving the Problems]
In order to solve the above problems, the present invention covers a main body, a pan removably housed in the main body, heating means provided in the main body for heating the pan, and a top opening of the main body. A lid provided to be openable and closable, wherein the outer shell of the main body is made of a metal material on the outside, and is made of an insulating material on the inside.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
The invention according to claim 1 includes a main body, a pan removably housed in the main body, a heating means provided in the main body for heating the pan, and an openable and closable cover for covering an upper surface opening of the main body. With the lid provided, the outer shell of the main body is made of a metal material on the outside, and the inside is made of an insulating material to secure insulation in a compact shape, enhance safety, improve careability and appearance. The outer shell of the main body can be made of a good metal material.
[0009]
According to the second aspect of the present invention, by forming the outer shell of the main body by integrating the outer metal material and the inner insulating material, the outer shell of the metal material having good careability and appearance is easy to process and assemble. Can be improved.
[0010]
According to the third aspect of the present invention, by providing a gap between the outer metal material and the inner insulating material, it is possible to improve the heat insulating property at the outer periphery of the metal material having good care and appearance. it can.
[0011]
According to the fourth aspect of the invention, the heat insulating property can be further improved by providing a heat insulating material between the outer metal material and the inner insulating material.
[0012]
In the invention according to claim 5, the main body is divided into an upper frame and a lower frame, and the outer metal material is sandwiched between the upper frame and the lower frame. , The recyclability can be improved.
[0013]
【Example】
(Example 1)
An embodiment of the present invention will be described with reference to FIG.
[0014]
In FIG. 1, the main body 17 has an upper surface opened, a protection frame 19 serving as a storage portion for the pot 18 is provided inside the main body 17, and a heating means is provided outside the protection frame 19. In this embodiment, a heating coil 20 for inductively heating the pot 18 and a control circuit 21 are provided as heating means. A temperature detection sensor 22 for detecting the temperature of the pot 18 is provided at the bottom of the protection frame 19, and the control circuit 21 controls the energization of the heating coil 20 by the temperature detection of the temperature detection sensor 22 to cook and heat rice. Perform
[0015]
Reference numeral 23 denotes a lid which covers the upper opening of the main body 17. The lid 23 is rotatably supported via a pin 26 by a hinge member 25 integrally formed on an upper portion of an upper frame 24 which constitutes an upper portion of the main body 17. I have. Reference numeral 27 denotes an outer lid cover, which is fixed inside the lid 23. A radiator plate unit 28 is detachably attached to the lower surface of the outer cover 27. A lid heating coil 29 serving as lid heating means supported by the outer lid cover 27 is located above the heat sink unit 28. By heating the radiator plate unit 28 by the electromagnetic action of the lid heating coil 29, the radiator plate unit 28 is heated from the upper surface during rice cooking and flipped up so as to wrap the whole rice, and is a means for heating from the upper surface and heating the pan 18 during heat insulation. By heating the induction coil 20, the temperature of the rice can be maintained uniform.
[0016]
Reference numeral 30 denotes a lid sensor for detecting the temperature of the radiator plate unit 28, which is provided so as to be in pressure contact with the radiator plate unit 28, and controls the energization of the lid heating coil 29 by the detection of the lid sensor 30. Reference numeral 31 denotes a steam cylinder which is detachably provided in the steam passage 32 of the lid 23.
[0017]
The main body 18 is constituted by an upper frame 24 forming an upper surface opening and a lower frame 34 forming a bottom surface. Further, an outer member outside the outer shell of the main body 18 is formed of an outer member made of a metal material such as stainless steel or a color steel plate. 35, the inner side is composed of an inner member 36 made of an insulating material. The inner member 36 is formed by integrating the lower frame 34. Since the inner member 36 made of an insulating material is arranged inside the outer member 35 made of a metal material, a distance between the heating coil 20 and the control circuit 21 which are a charging part in the main body 18 can be reduced. The main body 18 can be made compact, and even if the outer member 35, which is the outer shell of the main body 18, is deformed and dented due to a fall or an external force, the outer member 35 made of a metal material does not touch the charging part, so that the safety is ensured. It is.
[0018]
In this embodiment, the inner member 36 and the lower frame 34 are integrally formed. However, the inner member 36 may be integrated with the upper frame 24, or as a separate member from the upper frame 24 and the lower frame 34. It may be provided.
[0019]
(Example 2)
Next, a second embodiment will be described with reference to FIG. FIG. 2 is a diagram showing only the outer portion of the main body 17. 2, an outer shell of the main body 17 is integrally formed with an outer member 37 made of a metal material and an inner member 38 made of an insulating material. Therefore, the thickness of the outer member 37 and the inner member 38 can be minimized, and the body 17 can be made more compact.
[0020]
The means for integrally forming the outer member 37 and the inner member 38 may be a method of insert-molding the inner member 38 of the insulating member using synthetic resin, or a configuration in which the inner member 38 is attached to the outer member 37.
[0021]
Further, in the present embodiment, the entire bottom from the side of the outer shell is covered with the outer member 37. However, as shown in FIG. 1, the outer member 37 may be integrally formed only on the side of the outer shell.
[0022]
(Example 3)
Next, a third embodiment will be described with reference to FIG. In FIG. 3, a gap 41 is provided between an outer member 39 made of a metal material and an inner member 40 made of an insulating material. By providing the gap 41, a stationary layer of air can be formed, and the heat insulation effect can be increased to reduce the power consumption. Further, the outer member 39 is sandwiched between an upper frame 42 forming the upper opening of the main body 17 and a lower frame 43 forming the bottom surface. With this configuration, if the lower frame 43 is removed, the outer member 39 made of a metal material can be easily separated, and the disassembly and recyclability can be improved.
[0023]
(Example 4)
Finally, a fourth embodiment will be described with reference to FIG. In FIG. 4, a heat insulating material 46 is provided between an outer member 44 made of a metal material and an inner member 45 made of an insulating material. With this configuration, the heat insulating material 46 can be easily held, and the heat insulating effect can be enhanced with a compact and highly safe configuration.
[0024]
【The invention's effect】
As described above, according to the first aspect of the present invention, the outer shape of the main body can be made of a metal material having good maintenance and appearance while securing insulation and improving safety in a compact shape.
[0025]
According to the second aspect of the present invention, by forming the outer shell of the main body by integrating the outer metal material and the inner insulating material, the outer shell of the metal material having good careability and appearance has excellent workability. And the assemblability can be improved.
[0026]
According to the third aspect of the present invention, particularly, by providing a gap between the outer metal material and the inner insulating material, the outer periphery of the metal material having good care and appearance can be insulated. Performance can be improved.
[0027]
According to the fourth aspect of the present invention, the heat insulating property can be further improved by providing a heat insulating material between the outer metal material and the inner insulating material.
[0028]
According to the invention as set forth in claim 5, in particular, the main body is divided into an upper frame and a lower frame, and the outer metal material is sandwiched between the upper frame and the lower frame, so that only the metal material can be easily reduced. Separation, decomposability, and recyclability can be improved.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a rice cooker according to a first embodiment of the present invention. FIG. 2 is a cross-sectional view showing only a shell portion of a rice cooker according to a second embodiment of the present invention. FIG. 4 is a cross-sectional view showing an outer part of a main body of a rice cooker. FIG. 4 is a cross-sectional view showing an outer part of a main part of a rice cooker according to a fourth embodiment of the present invention. FIG. 5 is a cross-sectional view of a conventional rice cooker.
17 Main body 18 Pot 20 Heating coil 23 Lid 33, 42 Upper frame 34, 43 Lower frame 35, 37, 39, 44 Outer member 36, 38, 40, 45 Inner member 41 Gap 46 Heat insulating material

Claims (5)

本体と、前記本体内に着脱自在に収納される鍋と、前記本体内に設けられ前記鍋を加熱する加熱手段と、前記本体の上面開口部を覆い開閉自在に設けた蓋とを備え、前記本体の外郭は外側を金属材で構成し、内側を絶縁材で構成してなる炊飯器。A main body, a pan removably housed in the main body, heating means provided in the main body for heating the pan, and a lid provided on the upper surface opening of the main body so as to be openable and closable, A rice cooker with an outer shell made of metal and an inner shell made of insulating material. 本体の外郭は、外側の金属材と内側の絶縁材を一体化して構成した請求項1記載の炊飯器。The rice cooker according to claim 1, wherein the outer shell of the main body is formed by integrating an outer metal material and an inner insulating material. 本体の外郭は、外側の金属材と内側の絶縁材との間に隙間を設けて構成した請求項1記載の炊飯器。The rice cooker according to claim 1, wherein an outer shell of the main body is provided with a gap between an outer metal material and an inner insulating material. 外側の金属材と内側の絶縁材との間に断熱材を設けた請求項2記載の炊飯器。The rice cooker according to claim 2, wherein a heat insulating material is provided between the outer metal material and the inner insulating material. 本体を上枠と下枠に2分割し、外側の金属材を前記上枠と前記下枠で挟持した請求項1または3記載の炊飯器。The rice cooker according to claim 1 or 3, wherein the main body is divided into an upper frame and a lower frame, and an outer metal material is sandwiched between the upper frame and the lower frame.
JP2000338649A 2000-11-07 2000-11-07 rice cooker Expired - Fee Related JP3596457B2 (en)

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JP3596457B2 true JP3596457B2 (en) 2004-12-02

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