JPS6219029B2 - - Google Patents
Info
- Publication number
- JPS6219029B2 JPS6219029B2 JP56003454A JP345481A JPS6219029B2 JP S6219029 B2 JPS6219029 B2 JP S6219029B2 JP 56003454 A JP56003454 A JP 56003454A JP 345481 A JP345481 A JP 345481A JP S6219029 B2 JPS6219029 B2 JP S6219029B2
- Authority
- JP
- Japan
- Prior art keywords
- induction heating
- cable
- coil
- heating coil
- molded
- 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
- 238000010438 heat treatment Methods 0.000 claims description 39
- 230000006698 induction Effects 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 14
- 239000012212 insulator Substances 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000004020 conductor Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Manufacturing Of Electrical Connectors (AREA)
- Processing Of Terminals (AREA)
Description
【発明の詳細な説明】
本発明は誘導加熱法に係り、特に電力用ケーブ
ルの接続部に適用するケーブルモールド部の誘導
加熱法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an induction heating method, and more particularly to an induction heating method for a cable mold part applied to a connection part of a power cable.
従来、特に絶縁体に架橋ポリエチレンを用いた
電力用ケーブルのモールド接続部を誘導加熱する
場合においては、そのモールド部の外側全体に同
心状にコイルを巻きつけ、そのコイルの軸方向に
発生する磁界を利用して誘導加熱する方法が用い
られていた。 Conventionally, when inductively heating the molded connection part of a power cable that uses cross-linked polyethylene as the insulator, a coil is concentrically wound around the entire outside of the molded part, and the magnetic field generated in the axial direction of the coil is heated. A method of induction heating was used.
しかしながらこの方法では、コイルの巻き付け
や取り外しに長時間が費され、かつ、巻きつけ作
業には相当の熟練が必要であるなどの難点があつ
た。 However, this method has disadvantages in that it takes a long time to wind and unwind the coil, and the winding operation requires considerable skill.
本発明の目的は、上記難点を解消し、誘導加熱
コイルの取り付け取り外しが容易で、しかも短時
間に操作できるケーブルモールド部の誘導加熱法
を提供することにある。 SUMMARY OF THE INVENTION An object of the present invention is to provide an induction heating method for a cable molded part, which eliminates the above-mentioned difficulties, allows easy installation and removal of an induction heating coil, and can be operated in a short time.
本発明は、ケーブル接続部におけるモールド絶
縁体を誘導加熱コイルを用いて加熱する方法にお
いて、前記モールド絶縁体の外形に沿うように成
形した一対のうず巻状誘導加熱コイルを、モール
ド絶縁体の中軸に対して対称位置に設け、この誘
導加熱コイルに通電し加熱することを特徴とする
ものである。 The present invention provides a method for heating a molded insulator at a cable connection portion using an induction heating coil, in which a pair of spiral induction heating coils shaped to follow the outer shape of the molded insulator are heated to a central axis of the molded insulator. The induction heating coil is provided at a symmetrical position with respect to the induction heating coil, and is heated by supplying electricity to the induction heating coil.
以下本発明の実施例を図面に基づいて説明す
る。第１図は本発明の一実施例のケーブルモール
ド部の誘導加熱法を説明するためのケーブル接続
部の縦断面図、第２図はその誘導加熱コイルを示
す平面図、第３図は同じくガス加圧方式の実施例
を説明するためのケーブル接続部の横断面図であ
る。これらの図において、１はモールド絶縁体２
の外形に沿うように成形され、モールド絶縁体２
の中軸に対して対称の位置に設けられている一対
のうず巻状誘導加熱コイル、３はケーブル絶縁
体、４はケーブル導体、５はケーブル導体４の接
続部、６は誘導加熱コイル１の外側の鉄心、７は
鉄心６の外側から全体を覆う金属製の加熱釜を示
している。 Embodiments of the present invention will be described below based on the drawings. Fig. 1 is a longitudinal cross-sectional view of a cable connection part for explaining the induction heating method of a cable mold part according to an embodiment of the present invention, Fig. 2 is a plan view showing the induction heating coil, and Fig. 3 is a similar FIG. 3 is a cross-sectional view of a cable connection section for explaining an embodiment of the pressurization method. In these figures, 1 is the molded insulator 2
molded insulator 2.
A pair of spiral induction heating coils installed at symmetrical positions with respect to the central axis, 3 is a cable insulator, 4 is a cable conductor, 5 is a connection part of the cable conductor 4, and 6 is the outside of the induction heating coil 1 7 indicates a metal heating pot that covers the entire iron core 6 from the outside.
この実施例は、第２図に示すようなレーストラ
ツクに似たうず巻状の誘導加熱コイル１を導体接
続部５を絶縁するためのモールド絶縁体２の外形
に沿うように成形し、これをモールド絶縁体２を
挾むように対称の位置に設置し、これら一対の誘
導加熱コイル１の各コイル端子を磁極が同一方向
に向くように接続して通電することにより、ケー
ブル導体４に対して直角に発生する磁束によつて
誘導加熱する方法である。 In this embodiment, a spiral induction heating coil 1 resembling a racetrack as shown in FIG. The coil terminals of the pair of induction heating coils 1 are connected and energized so that the magnetic poles face in the same direction, and the coil terminals of the pair of induction heating coils 1 are installed at symmetrical positions so as to sandwich the molded insulator 2. This is a method of induction heating using the generated magnetic flux.
このように誘導加熱コイル１をケーブルモール
ド部の対称側面に設ける方法なので、その取り付
けおよび取り外しは至極簡単で、かつ容易に行う
ことができる。 Since the induction heating coil 1 is thus provided on the symmetrical side surface of the cable mold part, its attachment and removal are extremely simple and can be performed easily.
また、ガス加圧のもとにこの方法を実施するに
は、第２図に示すように、モールド絶縁体２の外
側に誘導加熱コイル１を対称に設け、その外側を
二つ割り接合構造の鉄心６およびその外側の加熱
釜７により覆い、ガス加圧のもとで通電加熱する
ことによりケーブルモールド部の誘導加熱を容易
に実施でき、その作業は鉄心６および加熱釜７の
着脱並びに前記同様な誘導加熱コイルの操作によ
り、何等熟練を要することなく簡単に行なうこと
ができる。 In addition, in order to carry out this method under gas pressure, as shown in FIG. By covering it with a heating pot 7 on the outside and heating it with electricity under gas pressure, induction heating of the cable mold part can be easily performed. It can be easily performed by operating the heating coil without requiring any skill.
この場合の鉄心６は金属製の加熱釜７に対する
磁気モールド並びに磁気抵抗を低下させるために
用いられるものである。 The iron core 6 in this case is used as a magnetic mold for the metal heating pot 7 and for lowering magnetic resistance.
また、誘導加熱コイル１は、二つ割りに設ける
鉄心６あるいは加熱釜７に固定できる。 Further, the induction heating coil 1 can be fixed to an iron core 6 provided in two or to a heating pot 7.
以上説明したように、本発明の方法によるとき
は、ケーブルモールド部の誘導加熱に際しての誘
導加熱コイルの取り付け取り外しが何等熟練を要
することなく、しかも容易かつ短時間に行うこと
ができるという効果を奏することができる。 As explained above, when the method of the present invention is used, it is possible to attach and detach the induction heating coil during induction heating of the cable molded part without requiring any skill, and moreover, it can be done easily and in a short time. be able to.
第１図は本発明の一実施例を説明するためのケ
ーブル接続部の縦断面図、第２図はその誘導加熱
コイルを示す平面図、第３図は同じくガス加圧方
式の実施例を説明するためのケーブル接続部の横
断面図である。
１：誘導加熱コイル、２：モールド絶縁部、
３：ケーブル絶縁体、４：ケーブル導体、５：導
体接続部、６：鉄心、７：加熱釜。
Fig. 1 is a vertical cross-sectional view of a cable connection part for explaining an embodiment of the present invention, Fig. 2 is a plan view showing the induction heating coil, and Fig. 3 is an illustration of an embodiment of the gas pressurization method. FIG. 1: induction heating coil, 2: mold insulation part,
3: Cable insulator, 4: Cable conductor, 5: Conductor connection, 6: Iron core, 7: Heating pot.
Claims (1)
導加熱コイルを用いて加熱する方法において、前
記モールド絶縁体の外形に沿うように成形した一
対のうず巻状誘導加熱コイルを、前記モールド絶
縁体の中軸に対して対称位置に設け、通電加熱す
ることを特徴とするケーブルモールド部の誘導加
熱法。1. In a method of heating a molded insulator at a cable connection part using an induction heating coil, a pair of spiral induction heating coils shaped to follow the outer shape of the molded insulator are placed against the center axis of the molded insulator. An induction heating method for a cable mold part, which is characterized by installing the cable mold part in a symmetrical position and heating it with electricity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56003454A JPS57118387A (en) | 1981-01-13 | 1981-01-13 | Method of heating by induction cable molded unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56003454A JPS57118387A (en) | 1981-01-13 | 1981-01-13 | Method of heating by induction cable molded unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57118387A JPS57118387A (en) | 1982-07-23 |
| JPS6219029B2 true JPS6219029B2 (en) | 1987-04-25 |
Family
ID=11557767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56003454A Granted JPS57118387A (en) | 1981-01-13 | 1981-01-13 | Method of heating by induction cable molded unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57118387A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0390485U (en) * | 1989-12-28 | 1991-09-13 |
-
1981
- 1981-01-13 JP JP56003454A patent/JPS57118387A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0390485U (en) * | 1989-12-28 | 1991-09-13 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57118387A (en) | 1982-07-23 |
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