JP3045332U - Structure of rod-shaped sheet heater - Google Patents
Structure of rod-shaped sheet heaterInfo
- Publication number
- JP3045332U JP3045332U JP1997006158U JP615897U JP3045332U JP 3045332 U JP3045332 U JP 3045332U JP 1997006158 U JP1997006158 U JP 1997006158U JP 615897 U JP615897 U JP 615897U JP 3045332 U JP3045332 U JP 3045332U
- Authority
- JP
- Japan
- Prior art keywords
- lead
- metal sleeve
- rod
- insulation
- shaped sheet
- 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
Landscapes
- Resistance Heating (AREA)
Abstract
(57)【要約】
棒状シ−ス・ヒ−タに於いて発熱部とリ−ド部の電気的
絶縁を確実にし、絶縁材の吸湿による絶縁抵抗の低下を
避け得る絶縁の方法。
【課題】 電気的絶縁を確実にするために間隙を保持す
る事と、粉状の吸湿による絶縁低下を避ける事と作業性
の改善を目的としている。
【解決手段】 発熱部リ−ド棒とリ−ド部側のリ−ドに
跨つて絶縁成体を合わせて被せた後金属スリ−ブ中に挿
通し、該金属スリ−ブをシ−ル溶接する。
(57) [Abstract] An insulation method that can ensure electrical insulation between a heating portion and a lead portion in a bar-shaped sheet heater and can prevent a decrease in insulation resistance due to moisture absorption of an insulating material. PROBLEM TO BE SOLVED: To maintain a gap for ensuring electrical insulation, to avoid insulation deterioration due to powdery moisture absorption, and to improve workability. SOLUTION: An insulating body is put together over a heat generating part lead rod and a lead part side lead, then inserted into a metal sleeve, and the metal sleeve is welded by a seal. I do.
Description
原子炉に於ける模擬燃料棒としての利用から理化学実験用、一般産業用、家庭 用に至る迄の電気抵抗発熱体として広く利用される棒状シ−ス・ヒ−タに関する ものである。 The present invention relates to a rod-shaped sheet heater widely used as an electric resistance heating element from use as a simulated fuel rod in a nuclear reactor to physics and chemistry experiments, general industrial use, and home use.
従来、棒状シ−ス・ヒ−タの製作に於いては発熱部リ−ド棒とリ−ド部とする ＭＩケ−ブル側のリ−ド棒をろう付け接合して、この接合部分を金属スリ−ブ中 に挿通し、該金属スリ−ブの両端を発熱部のシ−スとリ−ド部のＭＩケ−ブルの シ−スに溶接してシ−ルする。その後予め該金属スリ−ブの側面に穿孔した２〜 ３粍径の貫通孔から粉状の絶縁材を注入して内部に充填し、その後小孔を溶接し て封ずる。必要に応じて此の部分を加圧減径してスリ−ブ内部の粉状絶縁材の充 填密度を増し、金属スリ−ブの内壁とリ−ド棒の外側との間隙を保持、固定して 電気絶縁を確実にするものであつた。 Conventionally, in the production of a rod-shaped sheet heater, a lead rod on the MI cable side, which is a heating part lead rod and a lead part, is brazed and joined. The metal sleeve is inserted into a metal sleeve, and both ends of the metal sleeve are welded to a sheath of the heat generating portion and a sheath of the MI cable of the lead portion to be sealed. Thereafter, a powdery insulating material is injected from a through hole having a diameter of 2 to 3 formed in advance on a side surface of the metal sleeve and filled therein, and then the small hole is sealed by welding. If necessary, this part can be pressurized and reduced in diameter to increase the packing density of the powdered insulating material inside the sleeve, and maintain and fix the gap between the inner wall of the metal sleeve and the outside of the lead rod. And ensure electrical insulation.
ところが此の従来の方法では小孔から粉状の絶縁材を注入、充填することで電 気的絶縁を図るものであるので作業能率が悪く、充填密度は部分部分で疎密を生 じ、又封孔に至るまでの粉体の注入作業の間に吸湿が起こる。 これらのことは金属スリ−ブ内のリ−ド棒の外側面と金属スリ−ブ内側面との 間隙の保持を不確かにし電気的絶縁を不確実にするものであり、又絶縁材の吸湿 は絶縁低下を招く欠点があつた。 そこで本考案は従来の方法による上記の欠点を解消し、作業性を改善し、より 強固に絶縁間隔を保持出来る方法を提供することを目的としている。 However, in this conventional method, electrical insulation is achieved by injecting and filling a powdery insulating material from small holes, so that the work efficiency is poor, and the packing density is not uniform in some parts, and the packing density is high. Moisture absorption occurs during the operation of pouring the powder up to the holes. These factors uncertainly maintain the gap between the outer surface of the lead rod in the metal sleeve and the inner surface of the metal sleeve and make the electrical insulation uncertain. There is a disadvantage that insulation is reduced. Therefore, the present invention aims to solve the above-mentioned drawbacks of the conventional method, improve the workability, and provide a method capable of more firmly maintaining the insulation interval.
上記目的を達成するために、本考案に於いては棒状シ−ス・ヒ−タの発熱部リ −ド棒とリ−ド部のリ−ド棒をろう接した後、この溶接部分と上記両リ−ド棒の シ−スから露出した部分の外径に沿つて碍管の縦方向に半割りした絶縁成形体を 合わせるように前記リ−ド棒及びリ−ド棒のろう接部分に被せ、此の部分を金属 スリ−ブ中に挿通し、該金属スリ−ブの両端を発熱部のシ−ス外表面とリ−ド部 となるＭＩケ−ブルのシ−ス外表面としてシ−ルする。 In order to achieve the above object, according to the present invention, a heat generating part lead rod of a rod-shaped sheet heater and a lead part of the lead part are soldered to each other, and the welded portion is connected to the above-mentioned part. Cover the lead rod and the brazed part of the lead rod so as to fit the insulating molded body, which is half the length of the insulator tube along the outer diameter of the part exposed from the sheath of both lead rods. This part is inserted into a metal sleeve, and both ends of the metal sleeve are used as a sheath outer surface of the heat generating portion and a sheath outer surface of the MI cable serving as the lead portion. To
従来の粉状の絶縁材を充填する方法に代つて、本考案に於いては成形体の絶縁 材を装入し、絶縁間隔を確実に保持し、しかも吸湿による絶縁低下を防止してい る。 In the present invention, instead of the conventional method of filling with a powdery insulating material, the insulating material of the molded body is inserted, the insulation interval is securely maintained, and the insulation deterioration due to moisture absorption is prevented.
本考案の実施例を添付した図面に基いて説明する。 発熱部リ−ド棒１．とＭＩケ−ブルに接続しているリ−ド棒２．をろう接する 、これは従来の方法と同様である。次いで碍管を半割にした形状の絶縁成形体５ ．を発熱部リ−ド棒１．とＭＩケ−ブルに接続しているリ−ド棒２．に跨がつて 、これらリ−ド棒の周囲を半割りにした形状の絶縁成形体５．をあわせ囲み、金 属スリ−ブ３．で以つてこの部分を被覆するように発熱部のシ−ス７．の外表面 とリ−ド部となるＭＩケ−ブルのシ−ス８．の外表面と該金属スリ−ブ３．の両 端の断面の外周を溶接してシ−ルする。 An embodiment of the present invention will be described with reference to the accompanying drawings. Heating part lead rod 1. Lead rod connected to the MI cable This is similar to the conventional method. Next, an insulating molded body having a shape obtained by halving the insulator tube 5. Is a heating rod. 1. Lead rod connected to the MI cable 4. An insulating molded body having a shape in which the periphery of the lead rod is halved. 2. surround the metal sleeve. 6. Heating section sheath so as to cover this section. 7. Cable of MI cable to be the outer surface and lead 2. the outer surface of the metal sleeve and the metal sleeve; The outer periphery of the cross section at both ends is welded and sealed.
本考案は以上の構成の如く、粉状の絶縁材の充填による絶縁に代つて成形体の 絶縁材を用いることで絶縁を確実にし、しかも吸湿による絶縁抵抗の低下を避け 得ることで不良率の低下、又粉状絶縁材のみの充填に要した作業時間と手数を減 ずることを達成した。 In the present invention, as described above, the insulation is ensured by using the insulating material of the molded body instead of the insulation by filling with the powdery insulating material, and a reduction in the defect rate can be achieved by avoiding a decrease in insulation resistance due to moisture absorption. The work time and labor required for filling only the powdered insulating material were reduced.
【図面の簡単な説明】[Brief description of the drawings]
【図１】従来の方法を示す横断面図である。FIG. 1 is a cross-sectional view showing a conventional method.
【図２】本考案による実施例を示す横断面図である。FIG. 2 is a cross-sectional view showing an embodiment according to the present invention.
１・・・ 発熱部側リ−ド棒 ２・・・ ＭＩケ−ブル側リ−ド棒 ３・・・ 金属スリ−ブ ４・・・ 粉状絶縁材 ５・・・ 成形体絶縁材 ６・・・ 孔 ７・・・ 金属シ−ス DESCRIPTION OF SYMBOLS 1 ... Heating part side lead rod 2 ... MI cable side lead rod 3 ... Metal sleeve 4 ... Powdery insulating material 5 ... Molded body insulating material 6. .. Hole 7 ... metal sheet
Claims (1)
−ド部とするＭＩケ−ブルを別々に製作した後、各々の
リ−ド棒同志を接続し、アルミナ、シリカ又はマグネシ
ア等のセラミツクの碍管の半割の形状としたブロツクを
リ−ド棒の接続部に被せた後金属スリ−ブの中に挿通
し、該金属スリ−ブを発熱部のシ−ス外表面とリ−ド部
となるＭＩケ−ブルのシ−ス外表面に溶接してなること
を特徴とする棒状シ−ス・ヒ−タ。An MI cable serving as a heating section and a lead section is separately manufactured for a bar-shaped sheet heater, and the respective lead bars are connected to each other to form alumina and silica. Alternatively, a half-shaped block of ceramic insulator such as magnesia is placed over the connecting portion of the lead rod and then inserted into the metal sleeve, and the metal sleeve is placed outside the heat generating portion. A bar-shaped sheet heater characterized by being welded to the outer surface of a MI cable sheath which is a surface and a lead portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1997006158U JP3045332U (en) | 1997-07-15 | 1997-07-15 | Structure of rod-shaped sheet heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1997006158U JP3045332U (en) | 1997-07-15 | 1997-07-15 | Structure of rod-shaped sheet heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3045332U true JP3045332U (en) | 1998-01-27 |
Family
ID=43179718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1997006158U Expired - Lifetime JP3045332U (en) | 1997-07-15 | 1997-07-15 | Structure of rod-shaped sheet heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3045332U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007220325A (en) * | 2006-02-14 | 2007-08-30 | Yamari Sangyo Kk | Connection structure of micro-heater, and manufacturing method of micro-heater |
-
1997
- 1997-07-15 JP JP1997006158U patent/JP3045332U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007220325A (en) * | 2006-02-14 | 2007-08-30 | Yamari Sangyo Kk | Connection structure of micro-heater, and manufacturing method of micro-heater |
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