JPS63141286A - Electric heating unit - Google Patents
Electric heating unitInfo
- Publication number
- JPS63141286A JPS63141286A JP28696486A JP28696486A JPS63141286A JP S63141286 A JPS63141286 A JP S63141286A JP 28696486 A JP28696486 A JP 28696486A JP 28696486 A JP28696486 A JP 28696486A JP S63141286 A JPS63141286 A JP S63141286A
- Authority
- JP
- Japan
- Prior art keywords
- heating wire
- top plate
- heat insulating
- groove
- insulating base
- 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.)
- Pending
Links
- 238000005485 electric heating Methods 0.000 title claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 51
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 239000000853 adhesive Substances 0.000 claims description 12
- 230000001070 adhesive effect Effects 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 5
- 239000011810 insulating material Substances 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 description 5
- 238000010411 cooking Methods 0.000 description 4
- 238000010292 electrical insulation Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 239000008119 colloidal silica Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000680 Aluminized steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000007666 vacuum forming Methods 0.000 description 1
Landscapes
- Resistance Heating (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は一般家庭において、主に調理用に使用される電
熱ユニットに関するものである。DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to an electric heating unit used mainly for cooking in ordinary households.
従来の技術
従来より一般家庭で使用される調理用の電熱ユニットと
しては、陶器の■−にらせん状に巻いた電熱線を配設し
た電器こんろやシーズヒータをうず巻状に巻きユニット
化した電気レンジなどがある。また、欧米ではらせん状
に巻いた電熱線を断熱材に設けた溝に配設し、この上に
セラミック・ガラス板を置き、セラミック・ガラス板を
加熱面とするスムーズトップと呼ばれる電熱ユニットな
どが広く使用されている。Conventional technology Traditionally, electric heating units for cooking used in general households include ceramic stoves and sheathed heaters equipped with heating wires wound in a spiral shape. There is an electric range. In addition, in Europe and the United States, there are electric heating units called smooth tops, in which a spirally wound heating wire is placed in a groove in the insulation material, and a ceramic or glass plate is placed on top of the heating wire, and the ceramic or glass plate is used as the heating surface. Widely used.
発明が解決しようとする問題点
前記のような陶器を使用した電気こんろは電熱線が外部
に直接露出しているため危険であったり、調理物の内容
物がふきこぼれ、電熱線の断線寿命を短くするなどいろ
いろな欠点があると共に陶器の熱容量が大きいため、重
いと共になかなか冷めにくく、使用後すぐに移動したり
、また収納することができず使い勝手の面においても欠
点があった。Problems to be Solved by the Invention Electric stoves using ceramics as described above are dangerous because the heating wires are directly exposed to the outside, and the contents of the cooking material may boil over, shortening the lifespan of the heating wires. It had various disadvantages, such as being short, and because the heat capacity of ceramics was large, it was heavy and difficult to cool down, and it was difficult to move or store immediately after use, making it difficult to use.
上記欠点を解消するため、本発明者らはすでに、金属板
からなる天板と、らせん状に巻かれた電熱線と、この電
熱線を蛇行状に配設する溝を右するシリカまたはアルミ
ナ繊維を主成分とする断熱材からなる断８基盤と、この
断熱基盤を収納する金属板からなる収納ケースとからな
り、前記天板の被加熱物側には放射層を形成し、また電
熱線側には絶縁層を形成した電熱ユニットを提案してい
る。In order to eliminate the above-mentioned drawbacks, the present inventors have already developed a top plate made of a metal plate, a spirally wound heating wire, and a silica or alumina fiber that forms the groove in which the heating wire is arranged in a meandering manner. It consists of a 8-piece base made of a heat insulating material whose main component is a heat insulating base, and a storage case made of a metal plate that houses this heat insulating base. proposed an electric heating unit with an insulating layer.
しかし、この電熱ユニットの構成では、電熱線と天板と
の電気絶縁は天板の電熱線側に設けられた絶縁層の形成
により確保されているだけであり、絶縁層に欠陥があっ
たり使用中に絶縁層の劣化等が生じた時など、非常に危
険であり問題があった。However, in the configuration of this electric heating unit, the electrical insulation between the heating wire and the top plate is only ensured by the formation of an insulating layer provided on the heating wire side of the top plate. It was extremely dangerous and problematic when the insulating layer deteriorated inside.
本発明の目的は上記のような問題点を解決し、電熱線と
天板との電気絶縁性に優れた電熱ユニットを提供するこ
とにある。An object of the present invention is to solve the above-mentioned problems and provide an electric heating unit with excellent electrical insulation between heating wires and a top plate.
問題点を解決するための手段
本発明は上記目的を達成するため、金属板からなる天板
と、らせん状に巻かれた電熱線と、この電熱線を蛇行状
に配設する溝を有するシリカまたはアルミナ繊維を主成
分とする断熱材からなる断熱基盤と、この断熱基盤を収
納する金属板からなる収納ケースとからなり、前記電熱
線の巻き断面積の２／３以上が露出するように前記断熱
基盤の１閏に、この電熱線を接着剤によって固定させる
と共に、前記天板と電熱線との空間距離を一定に確保す
るようこれらを一体化した電熱ユニットとした。Means for Solving the Problems In order to achieve the above objects, the present invention provides a top plate made of a metal plate, a heating wire wound in a spiral shape, and a silica film having a groove in which the heating wire is arranged in a meandering manner. Alternatively, it consists of a heat insulating base made of a heat insulating material containing alumina fiber as a main component, and a storage case made of a metal plate that houses the heat insulating base, and the heating wire is arranged so that 2/3 or more of the winding cross-sectional area of the heating wire is exposed. The heating wire was fixed to one of the insulation bases with an adhesive, and the heating wire was integrated into an electric heating unit so as to maintain a constant spatial distance between the top plate and the heating wire.
作用
本発明では上記のような構成としたので、電熱線を断熱
基盤の溝に接着剤によって固定し、天板と電熱線との接
触を完全に防止することができ。Function: Since the present invention has the above-described structure, the heating wires can be fixed to the grooves of the heat insulating base with adhesive, and contact between the top plate and the heating wires can be completely prevented.
また天板と電熱線との空間距離を一定に確保することに
より、絶縁性が確実どなった。Also, by ensuring a constant spatial distance between the top plate and the heating wire, insulation was ensured.
一方、電熱線の天板への熱の移動は、放射により行なわ
れるが、本発明で示すように接着剤による固定を一定の
範囲、すなわち電熱線の巻き断面積の２／３以上を露出
させることにより、電熱線の放射面積の減少を抑えるこ
とができ、熱効率の優れた電熱ユニットとなった。On the other hand, heat transfer of the heating wire to the top plate is performed by radiation, but as shown in the present invention, the adhesive is fixed to expose a certain range, that is, 2/3 or more of the winding cross-sectional area of the heating wire. As a result, the reduction in the radiation area of the heating wire can be suppressed, resulting in an electric heating unit with excellent thermal efficiency.
実施例
以下、本発明の一実施例を第１図、第２図を参照し説明
する。EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIGS. 1 and 2.
ｌは５ＵＳ４３０からなる天板で、天板ｌの両面ば熱吸
収および熱放射に優れた耐熱塗料で被覆されている。２
はらせん状に巻かれた電熱線、３は断８基盤でシリカま
たはアルミナｍ雄を主成分とする耐熱温度１２００℃以
上の断熱材を真空成型法で成型加工することにより得ら
れ、蛇行状の溝３ａが設けられている。この溝３ａには
らせん状に巻かれた電熱線２が次に示す方法で配設され
固定されている。1 is a top plate made of 5US430, and both sides of the top plate 1 are coated with a heat-resistant paint that is excellent in heat absorption and heat radiation. 2
3 is a spirally wound heating wire, which is obtained by molding an insulating material with a heat resistance temperature of 1200 degrees Celsius or higher, which is mainly composed of silica or alumina, using a vacuum forming method, and has a serpentine shape. A groove 3a is provided. A spirally wound heating wire 2 is arranged and fixed in this groove 3a by the following method.
４はコロイダルシリカを主成分とする接着剤で、溝３ａ
中にこの接着剤４が所定量付着されている。付着所定輩
としては、電熱線２の巻き断面積の２／３以上が露出す
るようあらかじめコントロールされている。4 is an adhesive whose main component is colloidal silica, and the groove 3a
A predetermined amount of this adhesive 4 is adhered inside. The predetermined amount of adhesion is controlled in advance so that 2/3 or more of the winding cross-sectional area of the heating wire 2 is exposed.
５はアルミメッキ鋼板よりなる収納ケースで、電熱線２
を固定した断熱基盤３を収納する。この収納ケース５は
天板１の内径より小さな外径を有し、天板ｌの内側に位
置せしめられている。これら天板１、電熱線２、断熱基
盤３．接着剤４．収納ケース５を一体化することにより
、電熱ユニットが構成される。天板１と断熱基盤３とは
ごくわずかの空隙を設けた状態となっている。5 is a storage case made of aluminized steel plate, in which heating wire 2 is placed.
The heat insulating base 3 to which is fixed is stored. This storage case 5 has an outer diameter smaller than the inner diameter of the top plate 1, and is positioned inside the top plate l. These are the top plate 1, heating wire 2, insulation base 3. Adhesive 4. By integrating the storage case 5, an electric heating unit is constructed. A very small gap is provided between the top plate 1 and the heat insulating base 3.
本実施例では、電熱線を配設する溝を有する断熱基盤を
、コロイダルシリカを主成分とする接着剤中に浸漬し、
所定量付着させたのち、溝３ａに電熱線２を挿入し、続
いて電熱線２を挿入した断熱基ｍ３を電気炉の中に入れ
、熱処理することにより接着剤４を硬化させることによ
り、電熱線２が固定され一体化される。In this example, a heat insulating base having grooves for arranging heating wires is immersed in an adhesive mainly composed of colloidal silica.
After adhering a predetermined amount, the heating wire 2 is inserted into the groove 3a, and then the heat insulating base m3 into which the heating wire 2 is inserted is placed in an electric furnace, and the adhesive 4 is cured by heat treatment. The hot wire 2 is fixed and integrated.
尚、６は絶縁碍子、７は電気取り出し端子であり、これ
らは収納ケース５の下側に設けられている。Note that 6 is an insulator, and 7 is an electrical outlet terminal, which are provided on the lower side of the storage case 5.
このような構成を有する本発明の電熱ユニットは、電気
取り出し端子７を通して、電熱線２が発熱し、熱は天板
ｌを介して天板１の上に直接置かれた調理物に、または
五徳などを介して間接的に置かれた調理物に伝導または
放射により伝達される。In the electric heating unit of the present invention having such a configuration, the heating wire 2 generates heat through the electric outlet terminal 7, and the heat is transferred to the food placed directly on the top plate 1 via the top plate 1 or to a trivet. It is transmitted indirectly to the food placed on it through conduction or radiation.
また、調理中に内容物が吹きこぼれても、天板ｌを介し
て収納ケース５の下側に滴下し、直接電熱線２にかかる
ことはない。Moreover, even if the contents boil over during cooking, they will drip onto the lower side of the storage case 5 through the top plate l and will not directly hit the heating wire 2.
一方１本発明の電熱ユニットをさかさまにしたり落下さ
せても、電熱線２は断熱基！１３の溝３ａに接着剤４に
て固定されているため、電熱線２が溝３ａよりずれるこ
とがなく、天板１との電気絶縁性は確保されている。On the other hand, even if the electric heating unit of the present invention is turned upside down or dropped, the heating wire 2 remains insulated! Since the heating wire 2 is fixed in the groove 3a of 13 with the adhesive 4, the heating wire 2 does not shift from the groove 3a, and electrical insulation with the top plate 1 is ensured.
本発明において、電熱線２と溝３ａとの接着剤４による
接着において、電熱線２の巻き断面積の２／３以上が露
出するようにしたが、これは接着による強度が確保でき
る範囲で、露出度合が大きくなるようになっておればよ
い、このようにすることにより電熱線２の熱をすみやか
に天板１もしくは天板ｌを介して調理物に伝達すること
が可能となるためである。In the present invention, when bonding the heating wire 2 and the groove 3a with the adhesive 4, 2/3 or more of the winding cross-sectional area of the heating wire 2 is exposed, but this is within the range where the strength of the bonding can be ensured. It is sufficient that the degree of exposure is increased, because by doing so, the heat of the heating wire 2 can be quickly transferred to the food to be cooked via the top plate 1 or the top plate l. .
発明の効果
本発明では、電熱線を蛇行状に配設する溝を有するシリ
カまたはアルミナ繊維を主成分とする断熱材からなる断
熱基盤の溝へ電熱線の巻き断面積の２／３以上が露出す
るよう配設して接着剤で固定したので、電熱線の熱効率
を十分に発揮できると共に電熱線が溝内からはずれたり
、断線したりする危険性がなく、また断熱基盤から空間
距離を有して天板を固定しであるので、電熱線と天板間
に一定の距離を有しており、電気絶縁性に優れた電熱ユ
ニットを提供することができた。Effects of the Invention In the present invention, two-thirds or more of the winding cross-sectional area of the heating wire is exposed to the groove of the insulation base made of a heat insulating material mainly composed of silica or alumina fiber, which has a groove in which the heating wire is arranged in a meandering manner. Because the heating wires are placed so that they are placed in the groove and fixed with adhesive, the heating wires can fully utilize their thermal efficiency, and there is no risk of the heating wires coming off the groove or breaking, and they are spaced apart from the heat insulating base. Since the top plate is fixed in place, there is a certain distance between the heating wire and the top plate, making it possible to provide an electric heating unit with excellent electrical insulation.
第１図は本発明の一実施例を示す電熱ユニットの断面図
、第２図は同電熱ユニットの要部拡大断面図である。FIG. 1 is a cross-sectional view of an electric heating unit showing an embodiment of the present invention, and FIG. 2 is an enlarged cross-sectional view of a main part of the electric heating unit.
Claims (1)
線と、この電熱線を蛇行状に配設する溝を有するシリカ
またはアルミナ繊維を主成分とする断熱材からなる断熱
基盤と、この断熱基盤を収納する金属板からなる収納ケ
ースとからなり、前記電熱線の巻き断面積の２／３以上
が露出するように前記断熱基盤の溝に、この電熱線を接
着剤によって固定させると共に、前記天板と電熱線との
空間距離を一定に確保するようこれらを一体化したこと
を特徴とする電熱ユニット。(1) A heat insulating base consisting of a top plate made of a metal plate, a spirally wound heating wire, and a heat insulating material mainly composed of silica or alumina fiber, which has a groove in which the heating wire is arranged in a meandering manner. , a storage case made of a metal plate that houses the heat insulating base, and the heating wire is fixed to the groove of the heat insulating base with adhesive so that 2/3 or more of the winding cross-sectional area of the heat wire is exposed. Further, an electric heating unit characterized in that the top plate and the heating wire are integrated so as to maintain a constant spatial distance between them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28696486A JPS63141286A (en) | 1986-12-01 | 1986-12-01 | Electric heating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28696486A JPS63141286A (en) | 1986-12-01 | 1986-12-01 | Electric heating unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63141286A true JPS63141286A (en) | 1988-06-13 |
Family
ID=17711232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28696486A Pending JPS63141286A (en) | 1986-12-01 | 1986-12-01 | Electric heating unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63141286A (en) |
-
1986
- 1986-12-01 JP JP28696486A patent/JPS63141286A/en active Pending
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