JP3385865B2 - Electric rice cooker - Google Patents
Electric rice cookerInfo
- Publication number
- JP3385865B2 JP3385865B2 JP22633496A JP22633496A JP3385865B2 JP 3385865 B2 JP3385865 B2 JP 3385865B2 JP 22633496 A JP22633496 A JP 22633496A JP 22633496 A JP22633496 A JP 22633496A JP 3385865 B2 JP3385865 B2 JP 3385865B2
- Authority
- JP
- Japan
- Prior art keywords
- pot
- heater
- contact
- inner pot
- casting
- 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
Links
Landscapes
- Cookers (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、一般家庭で使用
される電気炊飯器に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric rice cooker used in general households.
【０００２】[0002]
【従来の技術】一般に電気炊飯器は、図５に示すように
電気炊飯器本体１の内部に保護枠２を設け、底部には鋳
込みヒ−タ３を設け、その上に上面開口の鍋４をセット
できるようにしている。この鋳込みヒ−タ３と鍋４はす
べての面で当接しているのではなく、ある一定の円周上
でのみ当接しているのであり、当接している部分とそう
でない部分での表面粗さは同じものであった。2. Description of the Related Art Generally, an electric rice cooker is provided with a protective frame 2 inside an electric rice cooker main body 1 as shown in FIG. 5, a casting heater 3 at the bottom, and a pot 4 having an upper surface opening. Is set. The casting heater 3 and the pot 4 are not in contact with each other on all surfaces, but are only in contact with each other on a certain circumference. It was the same.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記電
気炊飯器の構成では、鋳込みヒ−タ３と鍋４の間の熱は
鋳込みヒ−タ３と鍋４が当接している部分は直接の熱伝
導で鍋４に伝わっているが、そうでない部分では、鋳込
みヒ−タ３と鍋４の間に隙間があるため、輻射熱により
鍋４に伝わっている。ところが、鋳込みヒ−タ３の表面
粗さはすべて当接部と同一であり、輻射熱による熱の移
動については効率が悪かった。However, in the structure of the electric rice cooker described above, the heat between the casting heater 3 and the pot 4 is the direct heat at the portion where the casting heater 3 and the pot 4 are in contact with each other. It is transmitted to the pot 4 by conduction, but in the other part, there is a gap between the casting heater 3 and the pot 4, so it is transmitted to the pot 4 by radiant heat. However, the surface roughness of the cast heater 3 was the same as that of the contact portion, and the efficiency of heat transfer due to radiant heat was poor.
【０００４】本発明は、上記従来の課題に留意し、鋳込
みヒ−タ３の表面状態を鍋の状態に対応して変化させる
ことにより、熱効率を向上し、炊飯性能を向上した電気
炊飯器を提供することを目的としている。In consideration of the above conventional problems, the present invention provides an electric rice cooker having improved heat efficiency and improved rice cooking performance by changing the surface condition of the casting heater 3 according to the condition of the pot. It is intended to be provided.
【０００５】[0005]
【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、上面が開口するボデーと、前記ボデーに
嵌着する上枠と、前記ボデー内に着脱自在に収納できる
内鍋と、前記内鍋と当接する鋳込みヒ−タとを備え、前
記鋳込みヒ−タは、前記内鍋と一定円周上でのみ接触す
るとともに、前記内鍋との接触部以外の箇所の表面粗さ
を接触部のものより粗くし、さらに一定円周上から離れ
るに従い、鋳込みヒ−タと内鍋の隙間を広くするととも
に、鋳込みヒ−タのすべての部分において熱効率を向上
させるべく、鋳込みヒ−タと鍋の隙間に応じて鋳込みヒ
−タの表面粗さを変化させたものである。In order to solve the above-mentioned problems, the present invention provides a body having an open upper surface, an upper frame fitted to the body, and an inner pot which can be detachably accommodated in the body. , A casting heater abutting the inner pot, the casting heater is in contact with the inner pot only on a constant circumference, the surface roughness of the portion other than the contact portion with the inner pot Is made rougher than that of the contact part , and further away from the constant circumference
As the gap between the casting heater and inner pot increases,
In addition, thermal efficiency is improved in all parts of the cast heater.
In order to ensure that the casting heat
-The surface roughness of the tape is changed .
【０００６】[0006]
【発明の実施の形態】請求項１記載の発明は、上面が開
口するボデーと、前記ボデーに嵌着する上枠と、前記ボ
デー内に着脱自在に収納できる内鍋と、前記内鍋と当接
する鋳込みヒ−タとを備え、前記鋳込みヒ−タは、前記
内鍋と一定円周上でのみ接触するとともに、前記内鍋と
の接触部以外の箇所の表面粗さを接触部のものより粗く
し、さらに一定円周上から離れるに従い、鋳込みヒ−タ
と内鍋の隙間を広くするとともに、鋳込みヒ−タのすべ
ての部分において熱効率を向上させるべく、鋳込みヒ−
タと鍋の隙間に応じて鋳込みヒ−タの表面粗さを変化さ
せたことにより、発熱部の表面積を大きくすることがで
き、その結果、直接の熱伝導、輻射による熱伝導とも、
効率よく熱を伝えることができ、更に熱効率を向上させ
ることができる。 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 is a body having an open upper surface, an upper frame fitted to the body, an inner pot removably housed in the body, and the inner pot. With a casting heater in contact, the casting heater is in contact with the inner pot only on a constant circumference, and the surface roughness of a portion other than the contact portion with the inner pot is more than that of the contact portion. Roughening, and further away from a certain circumference, the casting heater
And widen the gap between the inner pot and the inner pot,
In order to improve the thermal efficiency in all parts,
The surface roughness of the cast heater is changed according to the gap between the
By allowed, it is possible to increase the surface area of the heat generating portion, so that direct heat conduction, with heat conduction by radiation,
It can transfer heat efficiently and further improve the heat efficiency.
You can
【０００７】請求項２記載の発明は、鋳込みヒ−タと内
鍋とを一定円周上でのみ接触させるとともに、鍋の当接
部よりも外側の鋳込みヒ−タの表面を粗くすることによ
り、外側の発熱効果を向上させることができ、それに従
い、炊飯時の外側の対流が向上し、内対流と外対流のバ
ランスをとることができ、発熱効果が向上するだけでな
く、炊飯性能をも向上させることができる。According to the second aspect of the present invention, the casting heater and the inner pot are brought into contact with each other only on a constant circumference, and the surface of the casting heater outside the contact portion of the pot is roughened. The outer heat generation effect can be improved, and accordingly, the outer convection at the time of rice cooking can be improved, and the inner convection and the outer convection can be balanced, which not only improves the heat generation effect but also improves the rice cooking performance. Can also be improved.
【０００８】[0008]
【実施例】（実施例１）
以下、本発明の第１の実施例を図１、図２にもとづいて
説明する。１は、上面が開口するボデーであり、上枠１
３がボデイ１に嵌着し、このボデイ１に保護枠２も嵌め
込んでいる。またこの保護枠２には図の様にシ−ズヒ−
タ３を鋳込んである鋳込みヒ−タ４とセンサ−ユニット
５と遮熱枠６が構成されており、鍋７はボデー１の上面
開口部から鋳込みヒ−タ４にセットできるようにしてい
る。鋳込みヒ−タ４と鍋７の位置関係は、鋳込みヒ−タ
４のある一定の円周上でのみ鍋７は鋳込みヒ−タ４と当
接しておりその一定の円周上から離れるに従い、鋳込み
ヒ−タ４と鍋７の隙間は広くなっていく。鍋７と接触し
ていない部分の鋳込みヒ−タ４の表面粗さは図２の示す
ように接触している部分の表面粗さに比べて粗くなてい
る。EXAMPLES Example 1 Hereinafter, a first example of the present invention will be described with reference to FIGS. 1 and 2. Reference numeral 1 is a body having an open top surface, and an upper frame 1
3 is fitted in the body 1, and the protective frame 2 is also fitted in the body 1. In addition, the shield frame 2 is
The casting heater 4 in which the rotor 3 is cast, the sensor unit 5, and the heat shield frame 6 are configured so that the pot 7 can be set on the casting heater 4 from the upper opening of the body 1. . The positional relationship between the casting heater 4 and the pot 7 is such that the pot 7 is in contact with the casting heater 4 only on a certain circumference of the casting heater 4 and is apart from the certain circumference. The gap between the casting heater 4 and the pot 7 becomes wider. The surface roughness of the casting heater 4 in the part which is not in contact with the pot 7 is rougher than the surface roughness in the part which is in contact with it as shown in FIG.
【０００９】上記実施例の様に、鍋７と鋳込みヒ−タ４
が接触している部分では鋳込みヒ−タ４の表面粗さを細
かくすることで、熱伝導による熱の移動を促す事ができ
る。また接触していない部分では、鋳込みヒ−タ４の表
面粗さを粗くすることにより発熱面積を増大することが
でき、輻射による熱の移動を向上させることができるの
である。As in the above embodiment, the pot 7 and the casting heater 4 are used.
By making the surface roughness of the cast-in heater 4 fine at the portion in contact with, it is possible to promote the transfer of heat by heat conduction. Further, in the non-contact portion, the heat generation area can be increased by roughening the surface roughness of the casting heater 4 and the transfer of heat by radiation can be improved.
【００１０】（実施例２）
以下、本発明の第２の実施例を図３にもとづいて説明す
る。基本構成は第１の実施例と同一であるので省略す
る。鋳込みヒ−タ８と鍋９の位置関係も同一であるが、
図３に示すように鋳込みヒ−タの表面粗さを鋳込みヒ−
タ８と鍋９の接触円周上よりも外側部８ａのみ粗くす
る。外側のみを粗くすることで外側部８ａの発熱面積が
増大し、炊飯時の熱の対流は外対流が強められることに
なる。このことにより内対流と外対流のバランスがよく
なり、熱効率が向上するだけでなく、炊飯性能も向上さ
せることができるのである。(Second Embodiment) A second embodiment of the present invention will be described below with reference to FIG. The basic structure is the same as that of the first embodiment, and will be omitted. Although the positional relationship between the casting heater 8 and the pot 9 is the same,
As shown in Fig. 3, the surface roughness of the cast heater was adjusted to
Only the outer portion 8a is rougher than the contact circumference of the pan 8 and the pan 9. By roughening only the outer side, the heat generation area of the outer portion 8a is increased, and the outer convection of heat convection during rice cooking is strengthened. This improves the balance between inner convection and outer convection, improving not only thermal efficiency but also rice cooking performance.
【００１１】（実施例３）
以下、本発明の第３の実施例を図４にもとづいて説明す
る。基本構成は同一であるので省略する。鋳込みヒ−タ
１０と鍋１１の位置関係も同一であるが、図４に示すよ
うに鋳込みヒ−タ１０と鍋１１の隙間に応じて鋳込みヒ
−タ１０の表面粗さを変化させることにより、ある一定
の粗さにするよりも更に発熱面積を増大することができ
る。よって表面粗さを鋳込みヒ−タ１０と鍋１１の隙間
に応じて変化させる事により、よりいっそうの熱効率を
向上させることができるのである。(Embodiment 3) A third embodiment of the present invention will be described below with reference to FIG. Since the basic configuration is the same, it is omitted. Although the positional relationship between the casting heater 10 and the pot 11 is the same, by changing the surface roughness of the casting heater 10 according to the gap between the casting heater 10 and the pot 11 as shown in FIG. The heat generation area can be further increased as compared with the case where the roughness is fixed to a certain level. Therefore, the thermal efficiency can be further improved by changing the surface roughness according to the gap between the casting heater 10 and the pot 11.
【００１２】[0012]
【発明の効果】以上のように、請求項１記載の発明によ
れば、直接の熱伝導、輻射による熱伝導とも、効率よく
熱を伝えることができる。また、鋳込みヒ−タのすべて
の部分において、更に熱効率を向上させることができ
る。 As described above, according to the first aspect of the invention, heat can be efficiently transmitted in both direct heat conduction and heat conduction by radiation. Also, all of the casting heater
In the part of, you can further improve the thermal efficiency
It
【００１３】また、請求項２記載の発明によれば、当接
部より外側の発熱効果を向上させることができ、炊飯時
の外側の対流が向上し、内対流と外対流のバランスをと
ることができ、発熱効果が向上するだけでなく、炊飯性
能をも向上させることができる。According to the second aspect of the present invention, the heat generation effect outside the contact portion can be improved, the outer convection during rice cooking is improved, and the inner convection and the outer convection are balanced. As a result, not only the heat generation effect can be improved, but also the rice cooking performance can be improved.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明の第１の実施例の電気炊飯器の部分断面
図FIG. 1 is a partial sectional view of an electric rice cooker according to a first embodiment of the present invention.
【図２】同、電気炊飯器の鋳込みヒ−タと鍋の要部断面
図FIG. 2 is a sectional view of the main parts of a pot and a pot of an electric rice cooker.
【図３】本発明の第２の実施例の電気炊飯器の鋳込みヒ
−タと鍋の要部断面図FIG. 3 is a cross-sectional view of a caster heater and a pan of an electric rice cooker according to a second embodiment of the present invention.
【図４】本発明の第３の実施例の電気炊飯器の鋳込みヒ
−タと鍋の要部断面図FIG. 4 is a cross-sectional view of the main parts of a casting heater and a pan of an electric rice cooker according to a third embodiment of the present invention.
【図５】従来例の電気炊飯器の部分断面図FIG. 5 is a partial sectional view of a conventional electric rice cooker.
１ ボデー ２ 保護枠 ４ 鋳込みヒ−タ ７ 鍋 １３ 上枠 1 body 2 protection frame 4 Cast Heater 7 pot 13 Upper frame
───────────────────────────────────────────────────── フロントページの続き (72)発明者 田中 敦 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (56)参考文献 特公 昭62−6803（ＪＰ，Ｂ１) 実公 昭49−46824（ＪＰ，Ｙ１) (58)調査した分野(Int.Cl.7，ＤＢ名) A47J 27/00 103 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Atsushi Tanaka 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP 62-6803 (JP, B1) JP 49 46824 (JP, Y1) (58) Fields surveyed (Int.Cl. 7 , DB name) A47J 27/00 103
Claims (2)
嵌着する上枠と、前記ボデー内に着脱自在に収納できる
内鍋と、前記内鍋と当接する鋳込みヒ−タとを備え、前
記鋳込みヒ−タは、前記内鍋と一定円周上でのみ接触す
るとともに、前記内鍋との接触部以外の箇所の表面粗さ
を接触部のものより粗くし、さらに一定円周上から離れ
るに従い、鋳込みヒ−タと内鍋の隙間を広くするととも
に、鋳込みヒ−タのすべての部分において熱効率を向上
させるべく、鋳込みヒ−タと鍋の隙間に応じて鋳込みヒ
−タの表面粗さを変化させてなる電気炊飯器。1. A body comprising: a body having an open upper surface; an upper frame fitted to the body; an inner pot removably housed in the body; and a caster heater contacting the inner pot. The casting heater makes contact with the inner pot only on a constant circumference, and makes the surface roughness of parts other than the contact part with the inner pot rougher than that of the contact part , and further separates from the constant circumference.
As the gap between the casting heater and inner pot increases,
In addition, thermal efficiency is improved in all parts of the cast heater.
In order to ensure that the casting heat
-Electric rice cooker with different surface roughness .
に、前記内鍋との接触部以外で、かつ接触部より外側部
分の表面粗さを接触部のものより粗くしてなる請求項１
記載の電気炊飯器。With only contact wherein the pot is constant circumferentially, claims other than the contact portion between the inner pot and becomes roughened than that of the contact portion of the surface roughness of the outer portion than the contact portion 1
The listed electric rice cooker.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22633496A JP3385865B2 (en) | 1996-08-28 | 1996-08-28 | Electric rice cooker |
| CN97117603A CN1129390C (en) | 1996-08-28 | 1997-08-11 | Electric rice cooker |
| KR1019970042245A KR19980019125A (en) | 1996-08-28 | 1997-08-28 | RICE COOKER |
| HK98119231A HK1014850A1 (en) | 1996-08-28 | 1998-12-30 | Electric rice cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22633496A JP3385865B2 (en) | 1996-08-28 | 1996-08-28 | Electric rice cooker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1066647A JPH1066647A (en) | 1998-03-10 |
| JP3385865B2 true JP3385865B2 (en) | 2003-03-10 |
Family
ID=16843546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22633496A Expired - Fee Related JP3385865B2 (en) | 1996-08-28 | 1996-08-28 | Electric rice cooker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3385865B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101933763A (en) * | 2010-07-16 | 2011-01-05 | 无锡同春新能源科技有限公司 | Electric cooker taking solar energy photovoltaic power system as power supply |
| CN101933764A (en) * | 2010-07-20 | 2011-01-05 | 无锡同春新能源科技有限公司 | Electric rice cooker taking wind power generation system as power supply |
| KR102644613B1 (en) * | 2021-12-29 | 2024-03-11 | 계명대학교 산학협력단 | Cooking device |
-
1996
- 1996-08-28 JP JP22633496A patent/JP3385865B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1066647A (en) | 1998-03-10 |
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