JPS6376294A - Electric heating unit - Google Patents
Electric heating unitInfo
- Publication number
- JPS6376294A JPS6376294A JP22011286A JP22011286A JPS6376294A JP S6376294 A JPS6376294 A JP S6376294A JP 22011286 A JP22011286 A JP 22011286A JP 22011286 A JP22011286 A JP 22011286A JP S6376294 A JPS6376294 A JP S6376294A
- Authority
- JP
- Japan
- Prior art keywords
- insulating base
- heat insulating
- electric heating
- heating unit
- heat
- 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 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 18
- 239000000919 ceramic Substances 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 15
- 239000011810 insulating material Substances 0.000 claims description 11
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 10
- 239000000835 fiber Substances 0.000 claims description 10
- 239000000377 silicon dioxide Substances 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 8
- 238000009413 insulation Methods 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229910000680 Aluminized steel Inorganic materials 0.000 description 1
- 206010011878 Deafness Diseases 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000035939 shock Effects 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) [Abstract] 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
従来よシ、一般家庭で使用される調理用の電熱ユニット
としては、陶器の上に螺旋状に巻いた電熱線を配設した
電気こんろやシーズヒータを渦巻状に巻きユニット化し
た電気レンジなどがある。Conventional technology Traditionally, electric heating units for cooking used in general households include electric stoves with spirally wound heating wires placed on ceramics, and sheathed heaters that are wound into spirally wound units. There is an electric range.
これら以外に欧米では、螺旋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、この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・ノドなどが広く使用されてい
る。In addition to these, in Europe and the United States, there is an electric heating unit called smooth top, in which a spirally wound heating wire is placed in a groove in the insulation material, a ceramic glass plate is placed on top of this, and this ceramic glass plate is used as the heating surface. Nod etc. are widely used.
しかしながら、日本においては、陶器を使用した電気こ
んろが価格的に安価であると共に、スムーズトップなど
の電熱ユニットなどに比較して熱効率が優れているため
、いまだ根強い需要がある。However, in Japan, electric stoves made of ceramic are still in strong demand because they are inexpensive and have superior thermal efficiency compared to electric heating units such as smooth tops.
この場合、昔ながらの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、ふきこぼれて電熱線の断線寿命を著
しく短かくするなどいろいろな欠点があった。In this case, electric stoves that use traditional ceramics may be dangerous because their heating wires are directly exposed to the outside.
There were various drawbacks, such as the contents of the food being cooked boiling over, significantly shortening the lifespan of the heating wire.
さらに、陶器の熱容量が大きいため、重いと共に、なか
なか冷めにりく、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。Furthermore, since ceramics have a large heat capacity, they are heavy, slow to cool, and cannot be moved or stored immediately after use, making them difficult to use.
このため、本発明者らは、すでに金属板からなる天板と
、螺旋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、前記天板の被
加熱物側に放射層を、また電熱線側に絶縁層を形成した
電熱ユニットを提案している。For this reason, the present inventors have already proposed a top plate made of a metal plate, a spirally wound heating wire, and a structure mainly composed of silica or alumina fibers, which has a groove in which the heating wire is arranged in a meandering manner. The electric heating unit consists of a heat insulating base made of a heat insulating material and a storage case made of a metal plate that houses the heat insulating base, and a radiation layer is formed on the side of the object to be heated of the top plate, and an insulating layer is formed on the side of the heating wire. is suggesting.
発明が解決しようとする問題点
しかしながら、断熱基盤として、シリカまたはアルミナ
繊維を主成分とする断熱材を用いた従来の電熱ユニット
では、耐熱性や断熱性に優れているため、高温で使用さ
れても、実際の使用上、大きな問題点はないが、断熱材
そのものが吸湿性に富むため、多湿雰囲気中に放置され
ると、電気特性の著しい劣化が生じるという問題があっ
た。Problems to be Solved by the Invention However, conventional electric heating units that use insulation materials mainly composed of silica or alumina fibers as insulation bases have excellent heat resistance and insulation properties, so they cannot be used at high temperatures. Although there are no major problems in actual use, the heat insulating material itself is highly hygroscopic, so if it is left in a humid atmosphere, there is a problem in that its electrical characteristics will significantly deteriorate.
本発明は前述した問題点を解決するもので、多湿雰囲気
中に放置されても電気特性に優れた電熱ユニットを提供
することを目的とするものである。The present invention solves the above-mentioned problems, and aims to provide an electric heating unit that has excellent electrical characteristics even when left in a humid atmosphere.
問題点を解決するための手段
上記問題点を解決するために本発明は、金属板からなる
天板と、螺旋状に巻かれた電熱線を蛇行状に配設する溝
を有するセラミック多孔体からなる絶縁基盤と、この絶
縁基盤の下に位置し、かつ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
と前記絶縁基盤を収納する金属板からなる収納ケースと
により構成したものである。Means for Solving the Problems In order to solve the above problems, the present invention provides a ceramic porous body having a top plate made of a metal plate and a groove in which a spirally wound heating wire is disposed in a meandering manner. An insulating base made of an insulating base made of a heat insulating material that is located under this insulating base and made of a heat insulating material mainly composed of silica or alumina fiber, and a storage case made of a metal plate that stores this insulating base and the insulating base. It is composed of
作用
本発明において使用するセラミック多孔体は、断熱性に
優れていると共に、電気絶縁性に優れており、また多湿
雰囲気中に放置されても、従来のシリカまたはアルミナ
繊維を主成分とする断熱材において見られた吸湿による
著しい絶縁劣化は生じず、安定した電気絶縁性を確保す
ることができる。Function The ceramic porous body used in the present invention has excellent heat insulating properties as well as electrical insulating properties, and even when left in a humid atmosphere, it is comparable to conventional heat insulating materials mainly composed of silica or alumina fibers. The significant insulation deterioration due to moisture absorption that was observed in the above does not occur, and stable electrical insulation can be ensured.
また、このセラミック多孔体からなる絶縁基盤の下側に
従来のシリカまたはアルミナ繊維を主成分とする断熱材
からなる断熱基盤を設けているため、より断熱特性に優
れた構造とすることができ、その結果、効率よく加熱す
ることが可能となる。In addition, since a heat insulating base made of a conventional heat insulating material mainly composed of silica or alumina fiber is provided below the insulating base made of this ceramic porous body, it is possible to create a structure with even better heat insulation properties. As a result, it becomes possible to heat efficiently.
一方、セラミック多孔体は一般的に機械的強度に劣るが
、本発明においては、セラミック多孔体からなる絶縁基
盤の下にミリ力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を位置させているため、絶縁基盤の
機械的強度を高めることもできる。On the other hand, ceramic porous bodies generally have poor mechanical strength, but in the present invention, a heat insulating base made of a heat insulating material mainly composed of millimeter or alumina fibers is placed below an insulating base made of a ceramic porous body. Therefore, the mechanical strength of the insulating base can be increased.
以上の理由により、構造的に安定したものになると共に
、多湿雰囲気中においても電気特性に優れた電熱ユニッ
トを得ることが可能となる。For the above reasons, it is possible to obtain an electric heating unit that is structurally stable and has excellent electrical characteristics even in a humid atmosphere.
なお、本発明で使用するセラミワク多孔体としては、耐
熱性に優れていると共に高温での電気絶縁性に優れたー
ージェライ） （２Ｍ（ｇｏ・２ム４□ＯＳ・５ｓｉｏ
２）もしくは、これを主成分とするものがよい。The ceramic porous material used in the present invention has excellent heat resistance and electrical insulation properties at high temperatures.
2) Or, it is better to have this as the main component.
実施例
以下、本発明の具体的な実施例を図面にもとづいて説明
する。図において、１は５ｐｃｃからなる天板で、この
天板１の両面には、熱の吸収および放射に優れた耐熱性
および耐熱衝撃性に優れた耐熱塗料により被覆処理が施
されている。２は、コージェライト（２ＭｇＯ−２ム（
＋２０． ＋１５５ｉｏ２）を主成分とするセラミック
多孔体からなる絶縁基盤で、蛇行状の溝２ａを設けてい
る。３は、シリカおよびアルミナ繊維を主成分とし、か
つ耐熱温度が１２００″Ｃ以上の断熱材を真空成型する
ことにより準備された断熱基盤で、この断熱基盤３は絶
縁基盤２の下に位置させている。４は螺旋状に巻かれた
電熱線で、前記絶縁基盤２に設けられた溝２１Ｌに配設
されている。５は、絶縁基盤２および断熱基盤３を収納
するアルミメッキ鋼板よりなる収納ケースで、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、かつ
天板１の内側に位置させている。また、前記天板１と絶
縁基盤２とは、ごくわずかの空隙が設けられた状態で一
体化されている。６は絶縁碍子であゃ、また７は電気取
り出し端子で、これらは収納ケース６の下側に設けられ
ている。EXAMPLES Hereinafter, specific examples of the present invention will be described based on the drawings. In the figure, reference numeral 1 denotes a top plate made of 5 pcc, and both sides of the top plate 1 are coated with a heat-resistant paint that has excellent heat resistance and thermal shock resistance, with excellent heat absorption and radiation. 2 is cordierite (2MgO-2M(
+20. The insulating base is made of a porous ceramic material whose main component is +155io2), and is provided with meandering grooves 2a. 3 is a heat insulating base prepared by vacuum forming a heat insulating material mainly composed of silica and alumina fibers and having a heat resistance temperature of 1200"C or more, and this heat insulating base 3 is located below the insulating base 2. Reference numeral 4 denotes a spirally wound heating wire, which is disposed in a groove 21L provided in the insulating base 2. Reference numeral 5 denotes a housing made of an aluminized steel plate that houses the insulating base 2 and the heat insulating base 3. The storage case 5 has an outer diameter smaller than the inner diameter of the top plate 1 and is located inside the top plate 1. Furthermore, the top plate 1 and the insulating base 2 have a very small They are integrated with a gap provided therein. 6 is an insulator, and 7 is an electrical outlet terminal, which are provided on the lower side of the storage case 6.
このような構成を有する本発明の１熱ユニ・フトの多湿
雰囲気中での電気特性を評価するため、５個の電熱ユニ
ットを、４０°Ｃで相対湿度９６幅の多湿雰囲気中に１
週間投入し、そして１週間経過後の絶縁抵抗および耐電
圧を測定した。In order to evaluate the electrical characteristics of the one-heat heating unit of the present invention having such a configuration in a humid atmosphere, five electric heating units were placed in a humid atmosphere at a temperature of 40°C and a relative humidity of 96.
The insulation resistance and withstand voltage were measured after one week had passed.
また、比較のために、セラミック多孔体からなる絶縁基
盤２を使用しないで、シリカおよびアルミナ繊維を主成
分とする断熱材からなる断熱基盤３に、蛇行状の溝を配
設した従来の電熱ユニウドも５個準備し、これも前記と
同様にして評価した。In addition, for comparison, a conventional electric heating unit was constructed in which meandering grooves were arranged on a heat insulating base 3 made of a heat insulating material mainly composed of silica and alumina fibers, without using the insulating base 2 made of a porous ceramic material. Five samples were also prepared and evaluated in the same manner as above.
なお、これらの電気特性は、収納ケース６と電気取り出
し端子７との間で測定した。これらの測定結果を次表に
示した。Note that these electrical characteristics were measured between the storage case 6 and the electrical outlet terminal 7. The results of these measurements are shown in the table below.
表
表から明らかなように、従来の断熱基盤３のみを使用し
た電熱ユニットでは、多湿雰囲気中に、１週間放置すれ
ば、絶縁抵抗は１．２ＭΩ以下で、かつ耐電圧は１ｏｏ
ｏｖ以下となって電気特性は著しく低下する。As is clear from the table, in an electric heating unit using only the conventional insulation board 3, if it is left in a humid atmosphere for one week, the insulation resistance is 1.2MΩ or less, and the withstand voltage is 1oo
ov or less, the electrical characteristics deteriorate significantly.
一方、セラミック多孔体からなる絶縁基盤２および従来
の断熱基盤３を使用した本発明の電熱ユニットでは、多
湿雰囲気中に１週間放置しても、絶縁抵抗は１００ＭΩ
以上で、かつ耐電圧は３００ＱＶ以上あり、優れた電気
特性を示した。On the other hand, in the electric heating unit of the present invention using the insulating base 2 made of a ceramic porous body and the conventional heat insulating base 3, the insulation resistance is 100 MΩ even if left in a humid atmosphere for one week.
In addition, the withstand voltage was 300 QV or more, and excellent electrical properties were exhibited.
このように、本発明の電熱ユニットでは、多湿雰囲気中
に放置されても優れた電気特性を示した。Thus, the electric heating unit of the present invention exhibited excellent electrical properties even when left in a humid atmosphere.
発明の効果
以上の説明から明らかなように、本発明によれば、金属
板からなる天板と、螺旋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セラミック多孔体か
らなる絶縁基盤と、この絶縁基盤の下に位置し、かつシ
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、この断熱基盤と前記絶縁基盤を収納・する
金属板からなる収納ケースとにより構成しているため、
多湿雰囲気中に放置されても電気特性に優れた電熱ユニ
ットを提供することかできるものである。Effects of the Invention As is clear from the above description, according to the present invention, there is provided a top plate made of a metal plate, a spirally wound heating wire, and a ceramic having a groove in which the heating wire is arranged in a meandering manner. An insulating base made of a porous material, an insulating base located below this insulating base and made of a heat insulating material mainly composed of silica or alumina fiber, and a metal plate that houses and houses this insulating base and the insulating base. Because it consists of a storage case,
It is possible to provide an electric heating unit that has excellent electrical characteristics even when left in a humid atmosphere.
図は本発明の一実施例を示す電熱ユニットの断面図であ
る。
１・・・・・・天板、２・・・・・絶縁基盤、２ａ・・
・・・・溝、３・・・・・・断熱基盤、４・・・・・・
電熱線、６・・・・・・収納ケース。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名ｆ−
−−尺林
２− 純蘇聾
２ユ・−溝
３− 町処基帆
→“−Ｉし残線
２ −”′”−“The figure is a sectional view of an electric heating unit showing an embodiment of the present invention. 1...Top plate, 2...Insulating base, 2a...
...Groove, 3...Insulation base, 4...
Heating wire, 6...Storage case. Name of agent: Patent attorney Toshio Nakao and 1 other person f-
--Shakubayashi 2- Junsu Deaf 2 Yu - Mizo 3- Kiho Machishokoro → “-I Shizansen 2 −”′”−“
Claims (1)
状に配設する溝を有するセラミック多孔体からなる絶縁
基盤と、この絶縁基盤の下に位置し、かつシリカまたは
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
、この断熱基盤と前記絶縁基盤を収納する金属板からな
る収納ケースとにより構成した電熱ユニット。A top plate made of a metal plate, an insulating base made of a ceramic porous body having a groove in which a spirally wound heating wire is arranged in a meandering manner, and a base plate located below the insulating base and made of silica or alumina fiber. An electric heating unit comprising a heat insulating base made of a heat insulating material as a main component, and a storage case made of a metal plate that houses the heat insulating base and the insulating base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22011286A JPS6376294A (en) | 1986-09-18 | 1986-09-18 | Electric heating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22011286A JPS6376294A (en) | 1986-09-18 | 1986-09-18 | Electric heating unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6376294A true JPS6376294A (en) | 1988-04-06 |
Family
ID=16746100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22011286A Pending JPS6376294A (en) | 1986-09-18 | 1986-09-18 | Electric heating unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6376294A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63121289A (en) * | 1986-11-10 | 1988-05-25 | 松下電器産業株式会社 | Electric heating unit |
| KR100779952B1 (en) * | 2006-11-02 | 2007-11-29 | 김복춘 | Automatic airer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5229454A (en) * | 1975-09-01 | 1977-03-05 | Asao Kotani | Method to manufacture doubled pipes |
| JPS5311645B2 (en) * | 1971-12-28 | 1978-04-24 | ||
| JPS5367577A (en) * | 1976-09-30 | 1978-06-16 | Micropore International Ltd | Electric heater unit |
| JPS59207587A (en) * | 1983-04-28 | 1984-11-24 | エ−・ゲ−・オ−・エレクトロ−ゲレ−テ・ブラン・ウント・フイツシエル | Heating element for heating cooking plate, heating plate or the like |
-
1986
- 1986-09-18 JP JP22011286A patent/JPS6376294A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5311645B2 (en) * | 1971-12-28 | 1978-04-24 | ||
| JPS5229454A (en) * | 1975-09-01 | 1977-03-05 | Asao Kotani | Method to manufacture doubled pipes |
| JPS5367577A (en) * | 1976-09-30 | 1978-06-16 | Micropore International Ltd | Electric heater unit |
| JPS59207587A (en) * | 1983-04-28 | 1984-11-24 | エ−・ゲ−・オ−・エレクトロ−ゲレ−テ・ブラン・ウント・フイツシエル | Heating element for heating cooking plate, heating plate or the like |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63121289A (en) * | 1986-11-10 | 1988-05-25 | 松下電器産業株式会社 | Electric heating unit |
| KR100779952B1 (en) * | 2006-11-02 | 2007-11-29 | 김복춘 | Automatic airer |
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