JPS6337945B2 - - Google Patents
Info
- Publication number
- JPS6337945B2 JPS6337945B2 JP21501081A JP21501081A JPS6337945B2 JP S6337945 B2 JPS6337945 B2 JP S6337945B2 JP 21501081 A JP21501081 A JP 21501081A JP 21501081 A JP21501081 A JP 21501081A JP S6337945 B2 JPS6337945 B2 JP S6337945B2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- metal pipe
- cable
- heat
- cable conductor
- 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
- 229910052751 metal Inorganic materials 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 15
- 239000004020 conductor Substances 0.000 claims description 14
- 230000006698 induction Effects 0.000 claims description 10
- 239000012212 insulator Substances 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000020169 heat generation Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
Landscapes
- Manufacturing Of Electrical Connectors (AREA)
Description
【発明の詳細な説明】
この発明は、ゴム、プラスチツク電力ケーブル
の、中間ならびに終端接続部の形成方法に関し、
特に高周波誘導加熱を利用した加熱モールド形成
方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for forming intermediate and terminal connections in rubber, plastic power cables.
In particular, the present invention relates to a heating mold forming method using high-frequency induction heating.
発明の背景と目的
「第１図」は中間接続部の形成方法の従来例の
説明図である。BACKGROUND AND OBJECTS OF THE INVENTION "FIG. 1" is an explanatory diagram of a conventional method of forming an intermediate connection portion.
１０はケーブル導体、１２は導体接続部、１４
はケーブル絶縁体、１６は補強絶縁体、１８は押
え巻きテープ、２０は高周波誘導加熱用のコイル
である。 10 is a cable conductor, 12 is a conductor connection part, 14
1 is a cable insulator, 16 is a reinforcing insulator, 18 is a pressing tape, and 20 is a high-frequency induction heating coil.
コイル２０を利用してケーブル導体１０を誘導
加熱し、その発生熱によつて補強絶縁体１６の加
熱モールドを行なう。 The cable conductor 10 is heated by induction using the coil 20, and the reinforcing insulator 16 is heated and molded by the generated heat.
ところがその場合、コイル２０端部において
は、漏れ磁束が多いので、ケーブル導体１０にお
ける熱の発生が、内側（導体接続部１２に近い
側）より少ない。また発生した熱もケーブル導体
１０を伝わつて導体接続部１２と反対側に逃げて
ゆく。そのために補強絶縁体１６の端部において
は温度が上りにくいという問題があつた。 However, in that case, since there is a lot of leakage magnetic flux at the end of the coil 20, less heat is generated in the cable conductor 10 than on the inside (the side closer to the conductor connection part 12). Further, the generated heat is also transmitted through the cable conductor 10 and escapes to the side opposite to the conductor connection portion 12. Therefore, there was a problem in that the temperature at the end portions of the reinforcing insulator 16 was difficult to rise.
この発明は、上記の問題の解決を図つたもので
ある。 This invention aims to solve the above problem.
発明の構成
「第２図」のように、
コイル２０の端部の内側に、ケーブルを取りま
く金属パイプ２２を設け、その金属パイプ２２
を、誘導コイル２０によつて、ケーブル導体１０
と同時に高周波誘導加熱することを特徴とする。Structure of the Invention As shown in FIG. 2, a metal pipe 22 surrounding the cable is provided inside the end of the coil 20, and the metal pipe 22
, by the induction coil 20, the cable conductor 10
It is characterized by high-frequency induction heating at the same time.
金属パイプ２２には、コイル２０より外径が小
さく、かつ短いものを使用する。一体ものでも、
二つ割りものでもよい。 The metal pipe 22 used has a smaller outer diameter and is shorter than the coil 20. Even if it is one piece,
It can also be split into two pieces.
材料には銅、アルミ、ステンレスなどを使用す
る。 Materials used include copper, aluminum, and stainless steel.
なお、うず電流による発熱量は、金属パイプ２
２の抵抗率や比透磁率の平方根にほぼ比例する。
そこで金属パイプ２２の材料にステンレス鋼など
の抵抗率の高いものを使用して、発熱の程度を制
御することもできる。 Note that the amount of heat generated by eddy current is based on metal pipe 2.
It is approximately proportional to the square root of the resistivity and relative permeability of 2.
Therefore, the degree of heat generation can be controlled by using a material with high resistivity, such as stainless steel, for the metal pipe 22.
また、「第３図」のように、金属パイプ２２を、
軸方向に異なる材料Ａ，Ｂの組合せで作る場合も
ある。このようなものを誘導加熱すると、Ａの部
分とＢの部分とで発熱作用が違つてくる。それを
利用して補強絶縁体１６の加熱をきめ細かく制御
できる。 In addition, as shown in "Fig. 3", the metal pipe 22 is
It may also be made from a combination of materials A and B that differ in the axial direction. When such an object is heated by induction, the heat generation effect will be different between part A and part B. Utilizing this, heating of the reinforcing insulator 16 can be precisely controlled.
また金属パイプ２２に網目状の孔を設ける場合
もある。そのようにすると、加熱時、内部から発
生するガスを、容易に外部に逃がすことができ
る。 In some cases, the metal pipe 22 is provided with mesh-like holes. By doing so, gas generated from inside during heating can easily escape to the outside.
発明の効果
(1) コイル２０によつて誘導加熱されて、ケーブ
ル導体１０と同時に金属パイプ２２も発熱す
る。したがつて補強絶縁体１６の端部における
熱不足が解消される。Effects of the Invention (1) The metal pipe 22 is heated by induction by the coil 20, and the metal pipe 22 generates heat at the same time as the cable conductor 10. Therefore, the lack of heat at the ends of the reinforcing insulator 16 is eliminated.
(2) 従来のように、コイル２０によつてケーブル
導体１０だけを発熱させる場合、長さ方向にお
ける発熱程度の部分的な調節はたいへん難しか
つた。(2) When only the cable conductor 10 is made to generate heat by the coil 20 as in the past, it is very difficult to partially adjust the degree of heat generation in the length direction.
しかし金属パイプ２２は、上記のように、直
径、材質、コイル２０との相対位置関係（第２図
の重なり長さＣ）などをかえると、発熱量が変わ
る。そこで誘導コイル２０の径、長さ、ターン数
などに応じて、適当な金属パイプ２２を使用する
ことにより、接続部における長さ方向の発熱量の
分布を、最も適切な形に調節することができるよ
うになる。 However, as described above, the amount of heat generated by the metal pipe 22 changes when its diameter, material, relative positional relationship with the coil 20 (overlap length C in FIG. 2), etc. are changed. Therefore, by using an appropriate metal pipe 22 according to the diameter, length, number of turns, etc. of the induction coil 20, it is possible to adjust the distribution of heat generation amount in the length direction at the connection part to the most appropriate shape. become able to.
第１図は従来技術の説明図、第２図はこの発明
の実施例の説明図、第３図は金属パイプ２２の別
の態様の説明図。
１０：ケーブル導体、１２：導体接続部、１
４：ケーブル絶縁体、２０：コイル、２２：金属
パイプ。
FIG. 1 is an explanatory diagram of the prior art, FIG. 2 is an explanatory diagram of an embodiment of the present invention, and FIG. 3 is an explanatory diagram of another embodiment of the metal pipe 22. 10: Cable conductor, 12: Conductor connection part, 1
4: cable insulator, 20: coil, 22: metal pipe.
Claims (1)
ルを設け、 それによつてケーブル導体を誘導加熱し、その
発生熱によつて補強絶縁体の加熱モールドを行な
うケーブル接続部の形成方法において、 前記コイルの端部の内側に、ケーブルを取りま
く金属パイプを設け、 その金属パイプを、前記コイルによつて、前記
ケーブル導体と同時に誘導加熱することを特徴と
するケーブルの形成方法。[Scope of Claims] 1. A cable connection part in which a coil for high-frequency induction heating is provided outside the reinforcing insulator to inductively heat the cable conductor, and the generated heat heats and molds the reinforcing insulator. A method for forming a cable, characterized in that a metal pipe surrounding the cable is provided inside the end of the coil, and the metal pipe is induction heated by the coil at the same time as the cable conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21501081A JPS58117672A (en) | 1981-12-29 | 1981-12-29 | Method of forming cable connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21501081A JPS58117672A (en) | 1981-12-29 | 1981-12-29 | Method of forming cable connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58117672A JPS58117672A (en) | 1983-07-13 |
| JPS6337945B2 true JPS6337945B2 (en) | 1988-07-27 |
Family
ID=16665213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21501081A Granted JPS58117672A (en) | 1981-12-29 | 1981-12-29 | Method of forming cable connector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58117672A (en) |
-
1981
- 1981-12-29 JP JP21501081A patent/JPS58117672A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58117672A (en) | 1983-07-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6337945B2 (en) | ||
| JP5942679B2 (en) | Reactor manufacturing equipment and manufacturing method | |
| JP2977423B2 (en) | High frequency induction heating coil device | |
| JPS63309408A (en) | Mold device for hot forming | |
| JPS57149616A (en) | Heat roll device | |
| JPS6237516B2 (en) | ||
| JPS57178820A (en) | Method of high-frequency induction welding of ethylene tetrafluoride resin | |
| JPS6041837B2 (en) | How to connect CV cable | |
| US2948797A (en) | Annealing furnace | |
| JPS6147080A (en) | Method of molding cable connector | |
| JP2513250Y2 (en) | High frequency heating torch for heating bolts | |
| JPH0427114Y2 (en) | ||
| JPS62259623A (en) | Hot bulging method | |
| JPS56151169A (en) | Brazing device | |
| JPS5648267A (en) | Heating method for metallic plate | |
| JPS5665928A (en) | One shot uniform heating method for surface of stepped shaft | |
| EP0141180A1 (en) | Casting apparatus | |
| JPS6286681A (en) | Molding method for cross-linked polyethylene insulated power cable connections | |
| JPS5546515A (en) | Method of coiling wire | |
| CN209756117U (en) | Inductance heating film pressing wheel | |
| JPH1134164A (en) | Induction heating device | |
| JPS52156440A (en) | Heat insulation method in case of induction heating of steel pipe and like | |
| JPS583277Y2 (en) | High frequency induction heating device | |
| JPS5745025A (en) | Heat treatment for heat-shrinkable tube | |
| JPH0424143B2 (en) |