JPH0588423U - rice cooker - Google Patents
rice cookerInfo
- Publication number
- JPH0588423U JPH0588423U JP2680492U JP2680492U JPH0588423U JP H0588423 U JPH0588423 U JP H0588423U JP 2680492 U JP2680492 U JP 2680492U JP 2680492 U JP2680492 U JP 2680492U JP H0588423 U JPH0588423 U JP H0588423U
- Authority
- JP
- Japan
- Prior art keywords
- protective frame
- inner pot
- heat
- ring
- induction heating
- 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.)
- Granted
Links
- 235000007164 Oryza sativa Nutrition 0.000 title claims description 23
- 235000009566 rice Nutrition 0.000 title claims description 23
- 240000007594 Oryza sativa Species 0.000 title claims 2
- 230000001681 protective effect Effects 0.000 claims abstract description 42
- 238000010438 heat treatment Methods 0.000 claims abstract description 35
- 230000006698 induction Effects 0.000 claims abstract description 16
- 230000005855 radiation Effects 0.000 claims abstract description 10
- 239000000696 magnetic material Substances 0.000 claims abstract description 8
- 230000017525 heat dissipation Effects 0.000 claims description 10
- 101100298225 Caenorhabditis elegans pot-2 gene Proteins 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 4
- 241000209094 Oryza Species 0.000 description 21
- 238000010411 cooking Methods 0.000 description 4
- 230000005674 electromagnetic induction Effects 0.000 description 4
- 230000005856 abnormality Effects 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
Landscapes
- Cookers (AREA)
Abstract
(57)【要約】
【構成】 本体１に内釜２を収納する保護枠３を設け、
保護枠３は少なくとも底部を非磁性材で形成し、保護枠
３の底部外側に誘導加熱コイル５を配設するとともに、
保護枠３上部に放熱リング４を配設し、放熱リング４に
発熱体６を設け、放熱リング４の内径と内釜２の外径と
の差は保護枠３底部の内径と内釜２の外径との差より少
なくなるように放熱リング４を配設した。
【効果】 内釜側面上部と対面する放熱リングは内釜と
近く効率よく内釜側面上部を加熱でき、内釜側面下部と
対面する保護枠側面下部は内釜から遠く遮熱効果が大き
くでき、保護枠の変形などを招くことがなく、誘導加熱
コイルに大電力を投入することが出来る。
(57) [Summary] [Structure] The main frame 1 is provided with a protective frame 3 for accommodating the inner pot 2,
At least the bottom of the protective frame 3 is formed of a non-magnetic material, and the induction heating coil 5 is arranged outside the bottom of the protective frame 3, and
The heat radiating ring 4 is arranged above the protective frame 3, and the heat radiating ring 4 is provided with a heating element 6. The difference between the inner diameter of the heat radiating ring 4 and the outer diameter of the inner pot 2 is that The heat radiating ring 4 is arranged so as to be smaller than the difference from the outer diameter. [Effect] The heat radiation ring facing the upper side of the inner pot can heat the upper side of the inner pot efficiently near the inner pot. A large amount of power can be applied to the induction heating coil without causing deformation of the protective frame.
Description
【０００１】[0001]
本考案は、電磁誘導加熱方式によつて炊飯する炊飯器に関するものである。 The present invention relates to a rice cooker that cooks rice using an electromagnetic induction heating method.
【０００２】[0002]
美味しい御飯を炊くためには、強い火力が必要であり、効率良く大電力で加熱 する方法として、電磁誘導により内釜を発熱させるものがある。 A strong heating power is required to cook delicious rice, and one method of efficiently heating with high power is to heat the inner pot by electromagnetic induction.
【０００３】 例えば特開平１−２７６５８４号公報では、保護枠を非金属の底部と金属の側 面部（放熱リング）に分割し側面部に発熱体（抵抗ヒーター）を配設している。 炊飯時は底部に設けた誘導加熱コイルを主たる加熱源として大電力を投入し、保 温時は側面の発熱体を主たる熱源として側面の均一な加熱を行なうようにしてい る。For example, in Japanese Unexamined Patent Publication No. 1-276584, a protective frame is divided into a non-metal bottom portion and a metal side surface portion (heat dissipation ring), and a heating element (resistive heater) is arranged on the side surface portion. When cooking rice, the induction heating coil provided at the bottom is used as a main heating source to supply a large amount of electric power, and when heating, the side heating element is used as a main heat source to uniformly heat the side.
【０００４】[0004]
電磁誘導加熱方式の炊飯器は、誘導加熱コイルを主たる熱源として炊飯を行な っているときは内釜の底部及び側面下部の温度が高温になっている。この熱が輻 射によって保護枠の底部及び側面下部に伝わると非磁性材で構成した保護枠の耐 熱温度上、悪影響を及ぼすほか保護枠底部に取り付けられた誘導加熱コイルの絶 縁物耐熱温度を超える虞があり、保護のため十分な電力を投入出来なくなる問題 がある。保護枠底部と内釜底部の距離は誘導加熱の都合上制約があり、これを避 けるために保護枠側面下部と内釜側面下部の距離をできるだけ離す必要がある。 また、内釜側面上部は誘導加熱が及ばず炊飯中でも低温であり、均一に上手に 炊飯するには内釜側面上部の加熱も必要となるが、従来例のように保護枠側面の 発熱体で加熱する場合内釜側面上部と発熱体の距離は近い方が熱伝導効率上有利 となる。 In an electromagnetic induction heating type rice cooker, when the rice is cooked using the induction heating coil as the main heat source, the temperature of the bottom of the inner pot and the lower part of the side surface are high. If this heat is transferred to the bottom of the protective frame and the lower side of the protective frame by radiation, it will adversely affect the thermal resistance temperature of the protective frame made of non-magnetic material, and the insulation heat resistance temperature of the induction heating coil attached to the bottom of the protective frame will be adversely affected. However, there is a problem that sufficient power cannot be applied for protection. The distance between the bottom of the protective frame and the bottom of the inner pot is limited due to the convenience of induction heating. To avoid this, it is necessary to keep the distance between the lower part of the side face of the protective frame and the lower part of the inner pot side as far as possible. In addition, the upper part of the side surface of the inner pot does not reach induction heating and is at a low temperature during rice cooking, and it is necessary to heat the upper part of the inner pot side surface evenly to cook rice well. When heating, it is advantageous in terms of heat transfer efficiency that the distance between the upper part of the side surface of the inner pot and the heating element is short.
【０００５】[0005]
【課題を解決するための手段】 本考案は、上記課題を解決するためになされたものであり、本体に内釜を収納 する保護枠を設け、保護枠は少なくとも底部を非磁性材とし底部に誘導加熱コイ ルを配設するとともに保護枠上部に放熱リングを配設し、放熱リングに発熱体を 設け放熱リングの内径と内釜の外径との差は保護枠底部の内径と内釜の外径との 差より少なくなるように放熱リングを配設した。[Means for Solving the Problems] The present invention has been made to solve the above problems, and a protective frame for accommodating an inner pot is provided in the main body, and at least the bottom part of the protective frame is made of a non-magnetic material and the bottom part is made of non-magnetic material. The induction heating coil is installed, the heat dissipation ring is installed on the upper part of the protective frame, and the heat dissipation ring is equipped with a heating element.The difference between the inner diameter of the heat dissipation ring and the outer diameter of the inner pot is the difference between the inner diameter of the bottom of the protective frame and the inner pot. The heat radiation ring was arranged so that the difference from the outer diameter was smaller.
【０００６】[0006]
上記構成により、内釜側面上部と対面する放熱リングは内釜に近くなり効率良 く内釜側面上部を加熱でき、内釜側面下部と対面する保護枠側面下部は内釜から 遠く保護枠側面下部への遮熱効果を大きくできるため、誘導加熱コイルを大電力 に設定しても保護枠の熱変形などの異常を招くことがなく大電力による美味しい 御飯ができる。 With the above configuration, the heat dissipation ring facing the upper side surface of the inner hook is close to the inner hook, and the upper side surface of the inner hook can be heated efficiently, and the lower side of the protective frame facing the lower side surface of the inner hook is far from the inner hook. Since the heat-shielding effect on the heat can be increased, even if the induction heating coil is set to a high electric power, it does not lead to abnormalities such as thermal deformation of the protective frame, and delicious rice can be cooked with the high power.
【０００７】[0007]
以下、本考案の一実施例を図１を用いて説明する。 An embodiment of the present invention will be described below with reference to FIG.
【０００８】 １は本体で、内釜２を着脱自在に収納する保護枠３を有する。保護枠３は底部 を非磁性材で形成し、側面部を金属材で形成し発熱体６を設けた放熱リング４で 構成されている。放熱リング４の内径と内釜２側面上部の外径との差は、保護枠 ３側面の内径と内釜２の側面下部の外径との差より少なくしてある。５は誘導加 熱コイルで、保護枠３底部外側に配設されている。７は蓋で、本体１に開閉自在 に取付けられている。１０は断熱材で、本体１と保護枠３との間に充填され保温 性能を高めるとともに本体１の温度上昇を防いでいる。Reference numeral 1 denotes a main body, which has a protective frame 3 in which the inner pot 2 is detachably accommodated. The protective frame 3 has a bottom portion made of a non-magnetic material, a side surface portion made of a metal material, and a heat radiation ring 4 provided with a heating element 6. The difference between the inner diameter of the radiating ring 4 and the outer diameter of the upper portion of the side surface of the inner pot 2 is smaller than the difference between the inner diameter of the side surface of the protective frame 3 and the outer diameter of the lower portion of the side surface of the inner pot 2. An induction heating coil 5 is arranged outside the bottom of the protective frame 3. Reference numeral 7 denotes a lid, which is attached to the main body 1 so as to be openable and closable. 10 is a heat insulating material, which is filled between the main body 1 and the protective frame 3 to improve the heat insulating performance and prevent the temperature rise of the main body 1.
【０００９】 上記構成からなる本実施例の作用を説明する。The operation of this embodiment having the above configuration will be described.
【００１０】 研いだ米と適量の水を内釜２に入れ、本体１に収納し蓋７を閉め、炊飯スイッ チ（図示せず）を押すと炊飯が開始される。すなわち、誘導加熱コイル５に通電 され、電磁誘導により内釜２底部及び側面下部が発熱するとともに、発熱体６に も通電されこの熱が放熱リング４に拡散されて輻射で内釜２に伝わり加熱される 。このとき、内釜２底部及び側面部は高温となり、この熱は内釜２内部の米と水 を加熱するほか輻射によつて保護枠３底部及び側面部に伝わるが、内釜２側面下 部と保護枠３側面部の距離を大きくとっているので、輻射によって保護枠３に伝 わる熱を少なくでき誘導加熱コイル５に投入する電力を大きく設定しても保護枠 ３の熱変形等の異常を招くことがない。Cooked rice and an appropriate amount of water are put in the inner pot 2, stored in the main body 1, the lid 7 is closed, and a rice cooking switch (not shown) is pressed to start rice cooking. That is, the induction heating coil 5 is energized, and the bottom of the inner pot 2 and the lower portion of the side face are heated by electromagnetic induction, and the heating element 6 is also energized, and this heat is diffused to the heat radiating ring 4 and transmitted to the inner pot 2 by radiant heating. Be done. At this time, the bottom and side surfaces of the inner pot 2 become hot, and this heat heats the rice and water inside the inner pot 2 and is transmitted to the bottom and side faces of the protective frame 3 by radiation, but the bottom of the inner pot 2 side Since the distance between the side surface of the protective frame 3 and the side surface of the protective frame 3 is large, the heat transferred to the protective frame 3 due to radiation can be reduced, and even if the electric power supplied to the induction heating coil 5 is set to a large value, an abnormality such as thermal deformation of the protective frame 3 occurs. Will not be invited.
【００１１】 また、放熱リング４による内釜２側面上部の加熱は、その距離を側面下部に比 べて比較的近く構成しているので効率的に輻射熱を伝えることができ、内釜２底 部の加熱に加えて上部の加熱も効率的に行なえるので美味しい御飯を提供するこ とができる。Further, since the heat is applied to the upper portion of the side surface of the inner pot 2 by the heat radiation ring 4 as compared to the lower portion of the side face, the radiant heat can be efficiently transmitted, and the bottom portion of the inner pot 2 is heated. In addition to the heating of rice, the heating of the upper part can be performed efficiently, so that delicious rice can be provided.
【００１２】 なお、非磁性材からなる保護枠３を図２に示すごとく上部まで設けてもよく、 図３に示すごとく保護枠上部８と保護枠下部９に分割した構成としてもよい。The protective frame 3 made of a non-magnetic material may be provided up to the upper part as shown in FIG. 2, or may be divided into a protective frame upper part 8 and a protective frame lower part 9 as shown in FIG.
【００１３】[0013]
以上本考案によれば、内釜を収納する保護枠の少なくとも底部を非磁性材で形 成し、保護枠の底部に誘導加熱コイルを配設するとともに、保護枠上部に放熱リ ングを配設し、放熱リングに発熱体を設け、放熱リングの内径と内釜の外径との 差は保護枠底部の内径と内釜の外径との差より少なくなるように放熱リングを配 設したので、内釜側面上部と対面する放熱リングは内釜に近く効率よく内釜側面 上部を加熱でき、内釜側面下部と対面する保護枠側面下部は内釜から遠く遮熱効 果が大きく保護枠の変形などの異常を招くことがなく、誘導加熱コイルに投入す る電力を大きく設定でき、美味しい御飯が炊ける炊飯器を提供できる。 As described above, according to the present invention, at least the bottom of the protective frame for accommodating the inner pot is made of a non-magnetic material, the induction heating coil is provided at the bottom of the protective frame, and the heat radiation ring is provided at the upper part of the protective frame. However, since a heating element is provided on the heat dissipation ring, the heat dissipation ring is arranged so that the difference between the inner diameter of the heat dissipation ring and the outer diameter of the inner pot is less than the difference between the inner diameter of the bottom of the protective frame and the outer diameter of the inner pot. The radiating ring facing the upper side of the inner pot is close to the inner pot and can heat the upper side of the inner pot efficiently, and the lower side of the protective frame facing the lower side of the inner pot is far from the inner pot and has a large heat shield effect. It is possible to provide a rice cooker that can cook delicious rice by setting a large amount of power to be applied to the induction heating coil without causing deformation or other abnormalities.
【図１】本考案の一実施例を示す炊飯器の概略断面図で
ある。FIG. 1 is a schematic cross-sectional view of a rice cooker showing an embodiment of the present invention.
【図２】本考案の保護枠の他の実施例を示す炊飯器の概
略断面図である。FIG. 2 is a schematic sectional view of a rice cooker showing another embodiment of the protective frame of the present invention.
【図３】同じく他の実施例を示す炊飯器の概略断面図で
ある。FIG. 3 is a schematic sectional view of a rice cooker showing another embodiment of the present invention.
【図４】従来例を示す炊飯器の概略断面図である。FIG. 4 is a schematic cross-sectional view of a rice cooker showing a conventional example.
１ 本体 ２ 内釜 ３ 保護枠 ４ 放熱リング ５ 誘導加熱コイル ６ 発熱体 1 Main body 2 Inner pot 3 Protective frame 4 Radiating ring 5 Induction heating coil 6 Heating element
Claims (1)
枠（３）を有し、保護枠（３）は少なくとも底部を非磁
性材で形成し、保護枠（３）底部に誘導加熱コイル
（５）を配設するとともに、保護枠（３）上部に放熱リ
ング（４）を配設し、放熱リング（４）に発熱体（６）
を設け、更に放熱リング（４）の内径と内釜（２）の外
径との差は、保護枠（３）底部の内径と内釜（２）の外
径との差より少なくなるように放熱リング（４）を配設
したことを特徴とする炊飯器。1. A main body (1) has a protective frame (3) for accommodating an inner pot (2), and the protective frame (3) has at least a bottom portion made of a non-magnetic material. The induction heating coil (5) is arranged, the heat radiation ring (4) is arranged above the protective frame (3), and the heat generating element (6) is arranged on the heat radiation ring (4).
Further, the difference between the inner diameter of the heat dissipation ring (4) and the outer diameter of the inner pot (2) is made smaller than the difference between the inner diameter of the bottom of the protective frame (3) and the outer diameter of the inner pot (2). A rice cooker having a heat dissipation ring (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992026804U JP2575083Y2 (en) | 1992-04-24 | 1992-04-24 | rice cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992026804U JP2575083Y2 (en) | 1992-04-24 | 1992-04-24 | rice cooker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0588423U true JPH0588423U (en) | 1993-12-03 |
| JP2575083Y2 JP2575083Y2 (en) | 1998-06-25 |
Family
ID=12203493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1992026804U Expired - Lifetime JP2575083Y2 (en) | 1992-04-24 | 1992-04-24 | rice cooker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2575083Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0453508A (en) * | 1990-06-21 | 1992-02-21 | Tiger Vacuum Bottle Co Ltd | Heat cooking utensil |
| JPH04371110A (en) * | 1991-06-20 | 1992-12-24 | Tiger Vacuum Bottle Co Ltd | Electromagnetic induction heating rice jar |
| JPH0588417U (en) * | 1991-08-12 | 1993-12-03 | タイガー魔法瓶株式会社 | Electromagnetic rice cooker |
-
1992
- 1992-04-24 JP JP1992026804U patent/JP2575083Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0453508A (en) * | 1990-06-21 | 1992-02-21 | Tiger Vacuum Bottle Co Ltd | Heat cooking utensil |
| JPH04371110A (en) * | 1991-06-20 | 1992-12-24 | Tiger Vacuum Bottle Co Ltd | Electromagnetic induction heating rice jar |
| JPH0588417U (en) * | 1991-08-12 | 1993-12-03 | タイガー魔法瓶株式会社 | Electromagnetic rice cooker |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2575083Y2 (en) | 1998-06-25 |
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