JPS6019634B2 - Sea heater - Google Patents
Sea heaterInfo
- Publication number
- JPS6019634B2 JPS6019634B2 JP10128778A JP10128778A JPS6019634B2 JP S6019634 B2 JPS6019634 B2 JP S6019634B2 JP 10128778 A JP10128778 A JP 10128778A JP 10128778 A JP10128778 A JP 10128778A JP S6019634 B2 JPS6019634 B2 JP S6019634B2
- Authority
- JP
- Japan
- Prior art keywords
- heater
- metal pipe
- resin layer
- silicone resin
- insulating material
- 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
Links
Landscapes
- Resistance Heating (AREA)
Description
【発明の詳細な説明】
本発明はシーズヒータ、特にシーズヒータの絶縁抵抗特
性の改良に関するもである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sheathed heater, particularly to improving the insulation resistance characteristics of a sheathed heater.
従釆のシーズヒータは、両端にターミナルを取付けたヒ
ータ線を金属パイプの内部中央に配設し、前記ヒータ線
と金属パイプの間に電気絶縁材料（充てん材）を充てん
して構成されている。A secondary sheathed heater is constructed by placing a heater wire with terminals attached at both ends in the center of a metal pipe, and filling the space between the heater wire and the metal pipe with an electrically insulating material (filling material). .
その充てん材としては、一般にマグネシャ粉末が使用さ
れているが、このマグネシャ粉末は吸湿性を有するため
、室内雰囲気で容易に吸湿するから、絶縁抵抗の劣化を
招く恐れがある。上記欠点を除去するために、金属パイ
プの末端部をシリコンゴムなどの封止材で密封すること
により、マグネシャ粉末（充てん材）の吸湿を防止して
いるが、十分な効果を期待することは至難である。Magnesia powder is generally used as the filler, but since this magnesia powder has hygroscopic properties, it easily absorbs moisture in the indoor atmosphere, which may lead to deterioration of insulation resistance. In order to eliminate the above drawbacks, the end of the metal pipe is sealed with a sealing material such as silicone rubber to prevent the magnesia powder (filling material) from absorbing moisture, but it is not possible to expect a sufficient effect. It is extremely difficult.
本発明は上記難点を解消し、絶縁抵抗の大で安定した品
質を有するシーズヒータを提供することを目的とするも
ので、両端にターミナルを取付けたヒータ線を金属パイ
プの内部中央に設置し、前記ヒータ線と金属パイプの間
に電気絶縁材料を充てんしてなるシーズヒータにおいて
、前記絶縁材料はその粒子表面をシリコン樹脂層により
被覆し、このシリコン樹脂層の表面にアルミナ等の男関
性のないセラミックス微粉末を付着させてなることを特
徴とするものである。The present invention aims to solve the above-mentioned difficulties and provide a sheathed heater with high insulation resistance and stable quality.The present invention aims to solve the above-mentioned problems and provide a sheathed heater with high insulation resistance and stable quality. In a sheathed heater in which an electrically insulating material is filled between the heater wire and the metal pipe, the particle surface of the insulating material is coated with a silicone resin layer, and the surface of the silicone resin layer is coated with a fertile material such as alumina. It is characterized by being made by adhering fine ceramic powder.
以下本発明の一実施例を図面を参照して説明する。An embodiment of the present invention will be described below with reference to the drawings.
第１図において、１は金属パイプ、２は金属／ぐィプー
の内部中央に設置されたコイル状のヒータ線で、その両
端にはターミナル３が金属パイプより突出するように取
付けられている。In FIG. 1, 1 is a metal pipe, 2 is a coiled heater wire installed in the center of the metal/Gwipo, and terminals 3 are attached to both ends of the wire so as to protrude from the metal pipe.
４は金属／ぐィプーとヒータ線２およびターミナル３の
一部との間に充てんされた電気絶縁材料（充てん材料）
である。4 is an electrically insulating material (filling material) filled between the metal/guipoo and heater wire 2 and a part of terminal 3
It is.
上記充てん材料４は第２図に示すように、シリコンパウ
ンド、シリコンワニスおよびシリコンオイルなどからな
るシリコン樹脂層０．３〜４．０％（重量比）をトルェ
ンなどのシンナーで稀薄化した混合物をマグネシャ粒子
５の表面に付着し被覆させてシリコン樹脂層６を形成し
、このシリコン樹脂層６の表面にアルミナ等の男開性の
ないセラミックス微粉末７を付着させて構成されている
。As shown in Fig. 2, the above-mentioned filling material 4 is a mixture made by diluting a silicone resin layer of 0.3 to 4.0% (weight ratio) consisting of silicone pound, silicone varnish, silicone oil, etc. with a thinner such as toluene. A silicone resin layer 6 is formed by adhering to and covering the surface of the magnesia particles 5, and a fine ceramic powder 7, such as alumina, which has no virility is adhered to the surface of the silicone resin layer 6.
本実施例は上記のように充てん材料であるマグネシャ粒
子５の表面をシリコン樹脂層６を介してセラミックス微
粉末Ｔによりコートしたので、充てん材料４は綾水性を
十分に保有するため、外部の湿気を容易に吸湿するのを
防止することができる。上記のようにセラミックス微粉
末７によりコートした充てん材料４を金属パイプ１内に
充てんし、充てん密度を高めるために減蓬した場合、ア
ルミナは男開性がないため、マグネシャ粒子５が破壊し
、その中にセラミックス微粉末７が入り込み、このため
マグネシャ粉末のみからなる充てん材料に比べて充てん
率を著しく向上させることができる。In this embodiment, as described above, the surface of the magnesia particles 5, which are the filling material, is coated with the ceramic fine powder T through the silicone resin layer 6, so that the filling material 4 has sufficient hydration properties, so that it is free from moisture from the outside. can be prevented from easily absorbing moisture. When the metal pipe 1 is filled with the filling material 4 coated with the ceramic fine powder 7 as described above, and the density is reduced to increase the packing density, the magnesia particles 5 are destroyed because alumina does not have virility. The ceramic fine powder 7 enters therein, so that the filling rate can be significantly improved compared to a filling material made only of magnesia powder.
以上説明したように、本発明によれば絶縁抵抗を増大さ
せ、安定した品質の製品をうろことができる。As explained above, according to the present invention, insulation resistance can be increased and products with stable quality can be produced.
第１図は本発明のシーズヒータの一実施例を示す断面図
、第２図は本発明に使用される充てん材料の拡大断面図
である。
１・…・・金属パイプ、２・・・・・・ヒータ線、３・
・・・・・ターミナル、４・・・・・・電気絶縁材料、
６・・・・・・シリコン樹脂層、７・・・・・・セラミ
ックス微粉末。
第１図第２図FIG. 1 is a cross-sectional view showing one embodiment of the sheathed heater of the present invention, and FIG. 2 is an enlarged cross-sectional view of the filling material used in the present invention. 1... Metal pipe, 2... Heater wire, 3...
...Terminal, 4...Electrical insulating material,
6... Silicone resin layer, 7... Ceramic fine powder. Figure 1 Figure 2
Claims (1)
イプ１の内部中央に設置し、前記ヒータ線２と金属パイ
プ１の間に電気絶縁材料４を充てんしてなるシーズヒー
タにおいて、前記電気絶縁材料４はその粒子表面をシリ
コン樹脂層６により被覆し、このシリコン樹脂層６の表
面にアルミナ等の劈開性のないセラミツクス微粉末７を
付着させてなることを特徴とするシーズヒータ。1. A sheathed heater in which a heater wire 2 with terminals 3 attached to both ends is installed at the center inside a metal pipe 1, and an electrically insulating material 4 is filled between the heater wire 2 and the metal pipe 1, wherein the electrically insulating material 4 is a sheathed heater characterized in that the particle surface is coated with a silicone resin layer 6, and a non-cleavable ceramic fine powder 7 such as alumina is adhered to the surface of the silicone resin layer 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10128778A JPS6019634B2 (en) | 1978-08-19 | 1978-08-19 | Sea heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10128778A JPS6019634B2 (en) | 1978-08-19 | 1978-08-19 | Sea heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5528265A JPS5528265A (en) | 1980-02-28 |
| JPS6019634B2 true JPS6019634B2 (en) | 1985-05-17 |
Family
ID=14296628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10128778A Expired JPS6019634B2 (en) | 1978-08-19 | 1978-08-19 | Sea heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6019634B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60218782A (en) * | 1984-04-13 | 1985-11-01 | 松下電器産業株式会社 | Sheathed heater |
-
1978
- 1978-08-19 JP JP10128778A patent/JPS6019634B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5528265A (en) | 1980-02-28 |
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