【考案の詳細な説明】[Detailed explanation of the idea]
本考案は、高温雰囲気中に配設される導線の相
互を絶縁保持するための高温用絶縁碍子に関す
る。
従来、高温操業を主体とする、例えば鉄鋼、非
鉄関係分野における熔鉱炉、電気炉、シヤフト
炉、熱風炉、コークス炉等または他分野、例えば
焼却炉等の如き高温雰囲気中に配設される配線系
或は他の種々の用途における導線相互の絶縁保持
手段として、第１図に例示した如く、任意形状の
外観（図例では円柱状）からなるセラミツクス基
体１の軸方向に導線２1，２2の挿通孔３1，３2を
並設してなる絶縁碍子が用いられている。
しかしながら、該絶縁碍子は、高温下において
絶縁性能が劣化し、導線相互の絶縁低下による
種々の弊害を誘発するといつた問題を有してお
り、高温での高絶縁碍子の要望が高まつている。
本考案は、絶縁碍子の上述問題点を解決し、簡
単な形状でもつて優れた絶縁特性を有する高温用
絶縁碍子を提供することを目的になされたもので
ある。
以下本考案の詳細を例示した実施例に基づいて
詳説する。第２図ａ，ｂは本考案に係る絶縁碍子
の一実施例斜視図を示し、１はムライト
3Al2O3・2SiO2、アルミナAl2O3、シリカSiO2、
マグネシアMgO、ベリリアBeO、トリアThO2、
スピネルMgO・Al2O3、ボロンナイトライドBN
等の円柱状のセラミツクス基体であり、基体の外
観形状は、使用場所、使用条件等に応じ適宜な形
状が採用される。
本考案は、この該セラミツクス基体１の軸方向
に導線２1，２2用の挿通孔３1，３2を並設すると
共に該挿通孔３1，３2間を絶縁すべく挿通孔３1，
３2間に任意形状の絶縁空間４例えば第２図ａ，
ｂの如きものを前記挿通孔と並設している。こゝ
に該絶縁空間４として第２図ｂで示したものは、
使用条件下において機械的破損を招来しない範囲
内において、その断面形状が略Ｈ型状の空間を各
挿通孔３1，３2が絶縁空間４と離間した位置にあ
るようセラミツクス基体１に配したもので、セラ
ミツクス基体１自体を通じての挿通孔３1，３2の
絶縁用離間を大ならしめるものである。
第３図は、本考案の他の実施例斜視図を示し、
隣接する導線挿通孔３1と３2、３2と３3、３3と３
４間のそれぞれを絶縁する位置に断面略十字状の
絶縁空間４を形成せしめたもので、第２図ｂの実
施例と同様に挿通孔の絶縁用離間距離を大ならし
めている。
次に表は、本考案に係る第２図ａ，ｂ例示の絶
The present invention relates to a high-temperature insulator for insulating conductive wires placed in a high-temperature atmosphere from each other. Traditionally, they have been installed in high-temperature atmospheres, such as melt furnaces, electric furnaces, shaft furnaces, hot blast furnaces, coke ovens, etc. in the steel and non-ferrous related fields, or in other fields, such as incinerators, etc., which mainly operate at high temperatures. As a means for maintaining insulation between conductive wires in wiring systems or other various uses, as illustrated in FIG. 1, conductive wires 2 1 , An insulator having 2 2 insertion holes 3 1 and 3 2 arranged in parallel is used. However, these insulators have the problem that their insulation performance deteriorates at high temperatures, causing various problems due to the deterioration of the insulation between conductors, and there is an increasing demand for high-insulation insulators that can be used at high temperatures. . The present invention has been made for the purpose of solving the above-mentioned problems of insulators and providing a high-temperature insulator that has excellent insulation properties despite its simple shape. The details of the present invention will be explained below based on illustrative examples. Figures 2a and 2b show perspective views of an embodiment of the insulator according to the present invention, and 1 is a mullite
3Al 2 O 3・2SiO 2 , Alumina Al 2 O 3 , Silica SiO 2 ,
Magnesia MgO, beryllia BeO, tria ThO 2 ,
Spinel MgO・Al 2 O 3 , boron nitride BN
It is a cylindrical ceramic substrate, and the external shape of the substrate is appropriately selected depending on the place of use, conditions of use, etc. In the present invention, the insertion holes 3 1 and 3 2 for the conducting wires 2 1 and 2 2 are arranged in parallel in the axial direction of the ceramic base 1, and the insertion holes 3 1 and 3 2 are arranged in parallel in order to insulate the insertion holes 3 1 and 3 2 . ，
3 Insulating space 4 of arbitrary shape between 2 , for example, Fig. 2 a,
A hole such as b is arranged in parallel with the insertion hole. Here, the insulating space 4 shown in FIG. 2b is
A space having a substantially H-shaped cross section is arranged in the ceramic base 1 so that each insertion hole 3 1 , 3 2 is located apart from the insulating space 4 within a range that does not cause mechanical damage under the usage conditions. This increases the insulating distance between the insertion holes 3 1 and 3 2 through the ceramic substrate 1 itself. FIG. 3 shows a perspective view of another embodiment of the present invention,
Adjacent conductor insertion holes 3 1 and 3 2 , 3 2 and 3 3 , 3 3 and 3
An insulating space 4 having a substantially cross-shaped cross section is formed at a position to insulate each of the holes, and the insulating distance between the insertion holes is increased as in the embodiment shown in FIG. 2b. Next, the table shows the examples of FIGS. 2a and b according to the present invention.
【表】
上表から明らかな如く、本考案に係る絶縁碍子
は従来品に比べ略５倍〜11倍優れた絶縁特性を有
していることが明らかである。これは高絶縁特
性に優れる絶縁空間を設けていること。セラミ
ツクス基体を通じての導線間の絶縁距離が大きい
等といつたことによるものである。
以上本考案に係る絶縁碍子では、導線挿通孔を
絶縁する位置に絶縁空間を形成せしめたことによ
り、該絶縁碍子に高温下で優れた絶縁特性を具有
させることになり、従つて、本絶縁碍子を用いれ
ば高温雰囲気に用いられる導線間の絶縁低下によ
る種々の弊害誘発を防止することができ、高温操
業における各種装置の稼動を安定せしめ得るもの
である。[Table] As is clear from the above table, it is clear that the insulator according to the present invention has insulation properties approximately 5 to 11 times better than conventional products. This means that an insulating space with excellent insulation properties is provided. This is due to the fact that the insulation distance between the conductive wires through the ceramic substrate is large. As described above, in the insulator according to the present invention, by forming an insulating space at a position where the conductor insertion hole is insulated, the insulator has excellent insulation properties at high temperatures. By using this method, it is possible to prevent various adverse effects caused by a decrease in insulation between conductive wires used in a high-temperature atmosphere, and it is possible to stabilize the operation of various devices during high-temperature operation.
【図面の簡単な説明】[Brief explanation of drawings]
第１図は従来の絶縁碍子斜視図、第２図ａ，ｂ
及び第３図は本考案に係る絶縁碍子の実施例斜視
図である。
１……セラミツクス基体、２……導線、３……
導線挿通孔、４……絶縁空間。
Figure 1 is a perspective view of a conventional insulator, Figure 2 a, b
FIG. 3 is a perspective view of an embodiment of the insulator according to the present invention. 1...Ceramics base, 2...Conducting wire, 3...
Conductor insertion hole, 4...Insulating space.