JP2532358B2 - Tubular heating element - Google Patents
Tubular heating elementInfo
- Publication number
- JP2532358B2 JP2532358B2 JP58114532A JP11453283A JP2532358B2 JP 2532358 B2 JP2532358 B2 JP 2532358B2 JP 58114532 A JP58114532 A JP 58114532A JP 11453283 A JP11453283 A JP 11453283A JP 2532358 B2 JP2532358 B2 JP 2532358B2
- Authority
- JP
- Japan
- Prior art keywords
- heating element
- tube
- heating
- heat
- tubular
- 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 - Lifetime
Links
- 238000010438 heat treatment Methods 0.000 title claims description 91
- 239000000919 ceramic Substances 0.000 claims description 19
- 239000004020 conductor Substances 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 7
- 229910017563 LaCrO Inorganic materials 0.000 claims description 3
- 229910016006 MoSi Inorganic materials 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 2
- 229910003465 moissanite Inorganic materials 0.000 claims description 2
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 21
- 239000010453 quartz Substances 0.000 description 10
- 230000006870 function Effects 0.000 description 5
- 238000010411 cooking Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910002060 Fe-Cr-Al alloy Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 150000002843 nonmetals Chemical class 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Resistance Heating (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、一般家庭用、及び業務用として使用されるマ
イクロウェーブを利用した調理機器に組み込まれ、加熱
源として使用される管状発熱体に関するものである。Description: TECHNICAL FIELD The present invention relates to a tubular heating element used as a heating source, which is incorporated in a microwave-based cooking device used for general household use and commercial use. is there.
従来例の構成とその問題点 近年、一般家庭の電子レンジ普及率が高くなり、業務
用としても数多く使用されるようになってきた。Structure of Conventional Example and Problems Thereof In recent years, the popularity of microwave ovens in general households has increased, and the microwave ovens have come to be used for many commercial purposes.
電子レンジには、レンジ機能単独のものと、ヒータを
組み込んでオーブン機能，グリル機能を付加したものが
あるが、後者の多機能商品が一般によく普及している。There are microwave ovens having only a microwave oven function and ovens having a built-in heater and having an oven function and a grill function, and the latter multi-function product is generally popular.
従来から、電子レンジの発熱体にはシーズヒータが使
用されて来たが、ヒータの立ち上がりが遅く、また、加
熱中にヒータが赤熱しても電子レンジ庫内が明るくなら
ない為、加熱感があまりないなどの理由により、近年、
シーズヒータに代わって石英管ヒータが使用される様に
なって来た。Conventionally, a sheathed heater has been used as a heating element of a microwave oven, but the heating of the heater is slow, and even if the heater glows red during heating, the inside of the microwave oven does not light up, so the feeling of heating is not so great. In recent years due to reasons such as no
Quartz tube heaters have come to be used instead of sheathed heaters.
以下、図面を参照しながら、前述したような従来の発
熱体について説明を行なう。Hereinafter, the conventional heating element as described above will be described with reference to the drawings.
第１図は、従来のシーズヒータを示すものである。第
１図において、１は金属パイプ、２は金属パイプ１の中
央に挿入されたコイル状の電熱線、３は金属パイプ１と
電熱線２の間に充填された電気絶縁粉末、４は電熱線２
と接続された端子、５は金属パイプ１の端部を封止する
封着剤である。FIG. 1 shows a conventional sheathed heater. In FIG. 1, 1 is a metal pipe, 2 is a coil-shaped heating wire inserted in the center of the metal pipe 1, 3 is an electrically insulating powder filled between the metal pipe 1 and the heating wire 2, and 4 is a heating wire. Two
Terminals 5 and 5 connected to are a sealing agent for sealing the end portion of the metal pipe 1.
しかしながら、前記のような構成では、電気絶縁粉末
３、及び金属パイプ１の熱容量が大きいため、通電後２
〜３分程度経過しないと高温にならず、速熱性に劣ると
いう欠点があると伴に、発熱体表面の温度が800℃程度
である為、電子レンジ庫内に組み込んだ場合、外部から
見て加熱感があまりないという欠点を有していた。However, in the above-mentioned configuration, since the heat capacity of the electrically insulating powder 3 and the metal pipe 1 is large, it is
The temperature of the heating element surface is about 800 ° C because it does not become high temperature until about 3 minutes and it is inferior in rapid heating property. Therefore, when it is installed in the microwave oven, it can be seen from the outside. It had a drawback that it did not feel very hot.
また第２図は、従来の石英管ヒータを示すものであ
る。第２図において、６は石英ガラス管,7は石英ガラス
管６の中央に挿入されたコイル状の電熱線、８は電熱線
７を支え、石英ガラス管６の端部を封止する碍子、９は
電熱線７に接続されたターミナルである。Further, FIG. 2 shows a conventional quartz tube heater. In FIG. 2, 6 is a quartz glass tube, 7 is a coil-shaped heating wire inserted in the center of the quartz glass tube 6, 8 is an insulator that supports the heating wire 7 and seals the end of the quartz glass tube 6, Reference numeral 9 is a terminal connected to the heating wire 7.
前記のような構成では、発熱体の立ち上がり速度は速
く、電子レンジに組み込んだ場合でも庫内が明るくな
り、加熱感は十分得られる。しかしながら、通電を繰り
返すうちに、高温クリープにより、電熱線７のコイル状
が乱れ、コイルの間隔が少なくなることがある。コイル
の間隔が一定値以下になると、マイクロウェーブを利用
したレンジ機能により調理を行なう際、コイル間で放電
を起こし、極端な場合には断線に至るという欠点を有し
ていた。In the above-mentioned structure, the rising speed of the heating element is high, and even when the heating element is incorporated in a microwave oven, the inside of the refrigerator becomes bright and a sufficient heating feeling can be obtained. However, during repeated energization, the coil shape of the heating wire 7 may be disturbed due to high temperature creep, and the spacing between the coils may decrease. When the distance between the coils is less than a certain value, there is a drawback that electric discharge occurs between the coils when cooking is performed by a microwave function using microwaves, and in an extreme case, a wire breakage occurs.
発明の目的 本発明は前記従来例の欠点を解消し、速熱性と十分な
加熱感を有し、かつマイクロウェーブを利用したレンジ
機能による調理の際にコイル間で放電を起こさない管状
発熱体を提供するものである。OBJECT OF THE INVENTION The present invention solves the above-mentioned drawbacks of the conventional example, and has a tubular heating element that has a rapid heating property and a sufficient heating sensation, and that does not cause discharge between coils during cooking by a microwave oven-based range function. It is provided.
発明の構成 この目的を達成する為に本発明の管状発熱体は、発熱
体を内側に有する非金属管と、前記発熱体のさらに内側
に配した耐熱性絶縁管とを有し、この耐熱性絶縁管には
導電性物質を配設し、前記発熱体のみにより発熱する管
状発熱体としている。To achieve this object, the tubular heating element of the present invention comprises a non-metallic tube having a heating element inside and a heat-resistant insulating tube arranged further inside the heating element. A conductive material is arranged in the insulating tube to form a tubular heating element that generates heat only by the heating element.
この構成によって、従来の石英管ヒータと比較して、
セラミック管と導電性物質の熱容量の増加分だけやや速
熱性は劣るが、発熱体の温度が上昇する分だけ加熱感に
優れ、かつ、発熱体が接触し短絡するまでマイクロウェ
ーブによる放電を防止出来るようにしたものである。With this configuration, compared to the conventional quartz tube heater,
Although the heating capacity is slightly inferior due to the increase in the heat capacity of the ceramic tube and the conductive material, the heating feeling is excellent as the temperature of the heating element rises, and microwave discharge can be prevented until the heating element contacts and shorts. It was done like this.
実施例の説明 以下本発明の一実施例について、図面を参照しながら
説明する。Description of Embodiments An embodiment of the present invention will be described below with reference to the drawings.
第３図は本発明の実施例を示す管状発熱体の断面図で
ある。第３図において、10は内径11.5mm、肉厚1.0mm、
長さ320mmの石英ガラス管で、非金属管を構成する。11
は石英ガラス管10の中央に挿入されたコイル長200mm、
巻内径7.5mm、線径φ1.0mmのコイル状の発熱体でFe-Cr-
Al系電熱線（FCHW1相当品）である。12は電熱線11のコ
イルの内側に位置させた耐熱性絶縁管であるムライト質
のセラミック管で、外径φ4.0,内径φ3.0,長さ320mmの
ものである。13はセラミック管12の内側に位置させた導
電性物質で線径φ1.0mm長さ320mmの直線状のFe-Cr-Al系
電熱線（FCHW2相当品）である。14は石英ガラス管10の
端部を封止する碍子、15は電熱線11に接続したターミナ
ルである。FIG. 3 is a sectional view of a tubular heating element showing an embodiment of the present invention. In FIG. 3, 10 is an inner diameter of 11.5 mm, a wall thickness of 1.0 mm,
A 320 mm long quartz glass tube constitutes a non-metallic tube. 11
Is a coil length of 200 mm inserted in the center of the quartz glass tube 10.
A coil-shaped heating element with a winding inner diameter of 7.5 mm and a wire diameter of φ1.0 mm.
Al-based heating wire (FCHW 1 equivalent). Reference numeral 12 is a mullite ceramic tube which is a heat-resistant insulating tube positioned inside the coil of the heating wire 11, and has an outer diameter φ4.0, an inner diameter φ3.0, and a length of 320 mm. Reference numeral 13 is a conductive substance positioned inside the ceramic tube 12 and is a linear Fe-Cr-Al-based heating wire (equivalent to FCHW 2 ) having a wire diameter of φ1.0 mm and a length of 320 mm. 14 is an insulator for sealing the end of the quartz glass tube 10, and 15 is a terminal connected to the heating wire 11.
以上のような構成で、50V-600Wの管状発熱体を作製し
た。以下その作用及び特性を説明する。A tubular heating element of 50V-600W was manufactured with the above configuration. The operation and characteristics will be described below.
非金属管である石英ガラス管10は電熱線11を支持し、
かつ絶縁を保証し、放熱を行なうものであり、石英ガラ
ス管に限らず、耐熱性，絶縁性，十分な機械的強度を有
するものであれば良く、他の組成のガラス管や各種セラ
ミック管でも良い。また管に溶射，塗装，ブラスト，等
の表面処理を施したものでも良く、管状発熱体として使
用する温度範囲に合わせて選択すれば良い。但し、不透
明な非金属管は、速熱性及び加熱感の点で透明な非金属
管に比して劣る為、使用に際しては注意を要する。The quartz glass tube 10 which is a non-metal tube supports the heating wire 11,
In addition to guaranteeing insulation and radiating heat, it is not limited to a quartz glass tube, but any material with heat resistance, insulation, and sufficient mechanical strength may be used, including glass tubes of other compositions and various ceramic tubes. good. The tube may be subjected to surface treatment such as thermal spraying, painting, blasting, etc., and may be selected according to the temperature range used as the tubular heating element. However, an opaque non-metallic tube is inferior to a transparent non-metallic tube in terms of rapid heating and a feeling of heating, so caution is required when using.
発熱体は、電気エネルギーを熱に変換するものであ
り、電熱線11に限らず、他の金属線や金属帯、セラミッ
ク発熱体（例えばSiC,MoSi2,LaCrO3,WC等）や炭素発熱
体でも良い。また形状もコイル状に限るものではない。
発熱体の加工による空間や、形状による空間の巾が一定
値以下になり、マイクロウェーブによって放電が生じる
ような条件では本実施例の構成によって放電を防止出来
る。The heating element converts electric energy into heat, and is not limited to the heating wire 11, but other metal wire or metal band, ceramic heating element (eg, SiC, MoSi 2 , LaCrO 3 , WC, etc.) or carbon heating element. But good. Further, the shape is not limited to the coil shape.
The discharge can be prevented by the configuration of the present embodiment under the condition that the width of the space due to the processing of the heating element or the width of the space due to the shape becomes a certain value or less and the discharge is generated by the microwave.
耐熱性絶縁管としてのセラミック管12は、セラミック
管12内側の導電性物質と発熱体とを絶縁し、短絡を防止
するものであって、耐熱性，絶縁性を有し、高温で発熱
体や雰囲気，他の構成材料と反応しない物質であれば良
く、特性及びコストの面から、Al,Si,Mg,Zrの内、少な
くとも一種以上を主成分とする酸化物から成るものが適
する。The ceramic tube 12 as a heat-resistant insulating tube insulates the conductive material inside the ceramic tube 12 and the heating element from each other to prevent a short circuit. Any substance that does not react with the atmosphere and other constituent materials may be used, and from the viewpoint of characteristics and cost, a substance composed of an oxide containing at least one or more of Al, Si, Mg, and Zr as a main component is suitable.
導電性物質13は、マイクロウェーブによる放電を防止
する効果を与えるものであり、電熱線に限らず耐熱性、
及び導電性を有するものであれば良いので、各種金属及
びSiC,MoSi2,WC,LaCrO3,AlB3の内、少なくとも一種以上
から成るものであれば可能である。また導電性物質13の
形状は直線状のものが最良であるが、他の形状でも可能
である。すなわち、針金状の導電性物質をセラミック管
12に挿入すれば良いわけである。またセラミック管12の
内面に、蒸着や塗布等の手段を用いて導電性物質の層を
形成したものでも可能であり、内面全体でなく、内面の
一部に筋状に導電性物質の層を形成したものでも可能で
ある。The conductive substance 13 has an effect of preventing electric discharge due to microwaves, and is not limited to a heating wire and has heat resistance,
Since any material having conductivity can be used, it is possible to use at least one of various metals and SiC, MoSi 2 , WC, LaCrO 3 , and AlB 3 . Further, the shape of the conductive material 13 is best linear, but other shapes are also possible. That is, wire-like conductive material
Just insert it in 12. It is also possible to form a layer of a conductive substance on the inner surface of the ceramic tube 12 by using a means such as vapor deposition or coating, and a layer of the conductive substance is formed in a stripe shape on a part of the inner surface instead of the entire inner surface. It can be formed.
次に実施例の管状発熱体の特性について説明する。 Next, characteristics of the tubular heating element of the embodiment will be described.
通電後肉眼によって電熱線11の赤熱が認められるまで
の管状発熱体の立ち上がり時間は約５秒で、従来の石英
管ヒータの立ち上がり時間（約５秒）とほぼ同じであ
り、シーズヒータの立ち上がり時間（約２〜３分）と比
較すると大巾に短縮されている。また電熱線11の温度
は、1050℃であり、石英管ヒータの場合の電熱線温度
（1020℃）より高くなっている為、より明るく、加熱感
が強くなっている。この管状発熱体を定格電圧（50V）
の２割増しの60Vで、20分通電10分空冷の冷熱サイクル
を繰り返し1000サイクル行なったものの内からコイルが
部分的に片寄って間隔が約0.1mmになったものを選び出
し、家庭用電子レンジ（発振周波数2450MHz,マイクロウ
ェーブ出力600W）に組み込み、マイクロウェーブを発振
させた。その結果、電熱線11のコイル間の放電は全く認
められなかった。一方、この管状発熱体のセラミック管
12及びセラミック管12内側の電熱線13を取り去り、従来
の石英管ヒータと同様の構造にして、前記同様のテスト
を行なったところ、コイル間で放電し、約30秒後には電
熱線11が溶断した。The rising time of the tubular heating element until the red heat of the heating wire 11 is recognized by the naked eye after energization is about 5 seconds, which is almost the same as the rising time (about 5 seconds) of the conventional quartz tube heater. Compared with (about 2-3 minutes), it is greatly shortened. Further, the temperature of the heating wire 11 is 1050 ° C., which is higher than the heating wire temperature (1020 ° C.) in the case of the quartz tube heater, so that the temperature is brighter and the feeling of heating is stronger. This tubular heating element is rated voltage (50V)
With 60V, which is an additional 20%, the heating and cooling cycle of 20 minutes energization and 10 minutes air-cooling was repeated 1000 times, and the one with the coil partially offset and the interval of about 0.1 mm was selected. A frequency of 2450MHz and a microwave output of 600W) were incorporated to oscillate the microwave. As a result, no discharge between the coils of the heating wire 11 was observed. On the other hand, this tubular heating element ceramic tube
12 and the heating wire 13 inside the ceramic tube 12 were removed, the same structure as the conventional quartz tube heater was tested, and the same test as above was carried out.Discharging between the coils, the heating wire 11 melted after about 30 seconds. did.
以上のように本実施例によれば、コイル状の発熱体の
内側にセラミック管12と導電性物質13を設けたことによ
り、速熱性は従来の石英管ヒータと同程度で、加熱感に
優れ、マイクロウェーブによる放電を防止した管状発熱
体を得ることが出来る。As described above, according to the present embodiment, by providing the ceramic tube 12 and the conductive material 13 inside the coil-shaped heating element, the rapid heating property is about the same as that of the conventional quartz tube heater, and the heating feeling is excellent. It is possible to obtain a tubular heating element in which discharge due to microwaves is prevented.
なお、本実施例では、石英ガラス管10を碍子で封止し
たが、石英ガラス管10の端部を溶着して封止した場合で
も同等の効果を示すものである。Although the quartz glass tube 10 is sealed with the insulator in this embodiment, the same effect can be obtained even when the end portion of the quartz glass tube 10 is welded and sealed.
次に本発明の他の実施例として第４図に示すような耐
熱性絶縁管を用いたものについて図面を参照しながら説
明する。Next, another embodiment of the present invention, which uses a heat-resistant insulating tube as shown in FIG. 4, will be described with reference to the drawings.
第４図において、16はアルミナを主成分とする外径φ
4.0mm、内径φ3.0mm、長さ320mmのセラミック管、17は
セラミック管16の内側に形成した厚さ50μｍのSiCから
成る導電性物質である。In FIG. 4, 16 is an outer diameter φ composed mainly of alumina.
A ceramic tube having a diameter of 4.0 mm, an inner diameter of φ3.0 mm and a length of 320 mm, and 17 is a conductive material made of SiC having a thickness of 50 μm formed inside the ceramic tube 16.
以上のように構成されたセラミック管16と導電性物質
17により、第１の実施例と同様に管状発熱体を構成し、
前述した方法で同様にテストした。その結果、管状発熱
体の立ち上がり時間は約５秒であり、従来の石英管ヒー
タとほぼ同じである。また電熱線の温度は1055℃であ
り、加熱感は従来の石英管ヒータより強くなっている。
さらに前述同様、冷熱サイクルを1000サイクル繰り返し
たものの中から、コイルの間隔が約0.1mmになったもの
を選び出し、電子レンジに組み込んでマイクロウェーブ
を発振させたが、放電は起こらなかった。次いでセラミ
ック管16と導電性物質17を取り去り、同様のテストを行
なったところ、放電が起こり電熱線の一部が赤熱した。Ceramic tube 16 and conductive material configured as described above
With 17, a tubular heating element is formed as in the first embodiment,
The same test was performed by the method described above. As a result, the rising time of the tubular heating element is about 5 seconds, which is almost the same as that of the conventional quartz tube heater. The heating wire temperature is 1055 ° C, and the feeling of heating is stronger than that of the conventional quartz tube heater.
Further, similar to the above, from the 1000 cycles of the cooling / heating cycle, the one with a coil interval of about 0.1 mm was selected and incorporated into a microwave oven to oscillate microwave, but no discharge occurred. Next, when the ceramic tube 16 and the conductive material 17 were removed and a similar test was conducted, discharge occurred and a part of the heating wire became red.
以上のように本実施例のセラミック管12,16の内面に
導電性物質13,17を形成したものを用いた管状発熱体に
より、速熱性，加熱感に優れ、マイクロウェーブによる
放電を防止した管状発熱体を得ることが出来る。As described above, the tubular heating element using the conductive materials 13 and 17 formed on the inner surfaces of the ceramic tubes 12 and 16 of the present embodiment has a rapid heating property, an excellent feeling of heating, and a tubular structure in which discharge due to microwaves is prevented. A heating element can be obtained.
発明の効果 以上の実施例から明らかなように本発明は、非金属管
の内側に発熱体を位置せしめ、この発熱体の内側に耐熱
性絶縁管を位置せしめ、さらにこの耐熱性絶縁管の内側
に導電性物質を配したことにより、速熱性，加熱感に優
れ、マイクロウェーブによる調理の際もコイル間で放電
を起こさない管状発熱体を得ることが出来、その工業的
効果は大なるものである。EFFECTS OF THE INVENTION As is clear from the above embodiments, the present invention locates the heating element inside the non-metallic tube, positions the heat resistant insulating tube inside the heating element, and further locates inside the heat resistant insulating tube. By arranging a conductive material in the, it is possible to obtain a tubular heating element that is excellent in rapid heating and heating feeling and does not cause discharge between coils even when cooking by microwaves, and its industrial effect is great. is there.
第１図は従来のシーズヒータの断面図、第２図は従来の
石英管ヒータの断面図、第３図は本発明の実施例におけ
る管状発熱体の断面図、第４図は本発明の他の実施例に
おけるセラミック管と導電性物質を示す断面図である。 10……非金属管（石英ガラス管）、11……発熱体（電熱
線）、12,16……耐熱絶縁管（セラミック管）、13,17…
…導電性物質。FIG. 1 is a sectional view of a conventional sheathed heater, FIG. 2 is a sectional view of a conventional quartz tube heater, FIG. 3 is a sectional view of a tubular heating element in an embodiment of the present invention, and FIG. 3 is a cross-sectional view showing a ceramic tube and a conductive material in the example of FIG. 10 …… Non-metal tube (quartz glass tube), 11 …… Heating element (heating wire), 12,16 …… Heat-resistant insulation tube (ceramic tube), 13,17…
… Conductive material.
Claims (4)
熱体のさらに内側に配した耐熱性絶縁管とを有し、この
耐熱性絶縁管には導電性物質を配設し、前記発熱体のみ
により発熱する管状発熱体。1. A non-metallic tube having a heating element inside, and a heat-resistant insulating tube disposed further inside the heating element. A conductive substance is disposed in the heat-resistant insulating tube, and A tubular heating element that generates heat only from a heating element.
る特許請求の範囲第１項記載の管状発熱体。2. The tubular heating element according to claim 1, wherein the non-metallic tube is made of glass or ceramic.
WC,LaCrO3,AlB3の内、少なくとも一種以上から成る特許
請求の範囲第１項記載の管状発熱体。3. A conductive material such as metal, SiC, MoSi 2 ,
The tubular heating element according to claim 1, comprising at least one of WC, LaCrO 3 and AlB 3 .
少なくとも一種以上を主成分とする酸化物から成る特許
請求の範囲第１項記載の管状発熱体。4. A heat-resistant insulating tube, of Al, Si, Mg, Zr,
The tubular heating element according to claim 1, which is composed of an oxide containing at least one or more main components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58114532A JP2532358B2 (en) | 1983-06-24 | 1983-06-24 | Tubular heating element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58114532A JP2532358B2 (en) | 1983-06-24 | 1983-06-24 | Tubular heating element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS607094A JPS607094A (en) | 1985-01-14 |
| JP2532358B2 true JP2532358B2 (en) | 1996-09-11 |
Family
ID=14640105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58114532A Expired - Lifetime JP2532358B2 (en) | 1983-06-24 | 1983-06-24 | Tubular heating element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2532358B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW387152B (en) | 1996-07-24 | 2000-04-11 | Tdk Corp | Solar battery and manufacturing method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6119515Y2 (en) * | 1980-01-29 | 1986-06-12 |
-
1983
- 1983-06-24 JP JP58114532A patent/JP2532358B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS607094A (en) | 1985-01-14 |
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