JPH0412758Y2 - - Google Patents
Info
- Publication number
- JPH0412758Y2 JPH0412758Y2 JP1985047886U JP4788685U JPH0412758Y2 JP H0412758 Y2 JPH0412758 Y2 JP H0412758Y2 JP 1985047886 U JP1985047886 U JP 1985047886U JP 4788685 U JP4788685 U JP 4788685U JP H0412758 Y2 JPH0412758 Y2 JP H0412758Y2
- Authority
- JP
- Japan
- Prior art keywords
- water
- annular groove
- groove
- cooling water
- cooled cable
- 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
- 239000000498 cooling water Substances 0.000 claims description 20
- 239000004020 conductor Substances 0.000 claims description 13
- 239000002184 metal Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 238000001816 cooling Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Gas Or Oil Filled Cable Accessories (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は水冷ケーブルの端末部の改良に関する
ものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an improvement of the terminal portion of a water-cooled cable.
電気溶接機の給電ケーブル等として使用する水
冷ケーブルの端末部においては、端子金具によつ
てケーブル導体を電源リードに電気的に接続する
と共にケーブル内冷却通路を外部冷却水源リード
に連通することが必要である。斯ゝる水冷ケーブ
ルの端末部として第２図Ａ並びに第２図Ｂ（第２
図Ａの−線断面図）に示すように、水冷ケー
ブルB′の導体端に導電スリーブ（銅スリーブ）
C′を圧縮接続し、該圧縮スリーブに螺子切りを施
すと共に冷却水通路用凹溝４′を設け、該螺子切
りスリーブを端子金具A′の螺子溝３′に螺結し、
水冷ケーブルB′の外被端９′a′を端子金具A′に締
付バンド１１′によつて被着するものが公知であ
る（実公昭49−28630号公報）。
At the end of a water-cooled cable used as a power supply cable for an electric welding machine, etc., it is necessary to electrically connect the cable conductor to the power supply lead using a terminal fitting, and to connect the cooling passage inside the cable to the external cooling water source lead. It is. The terminal parts of such water-cooled cables are shown in Fig. 2A and Fig. 2B (Fig.
As shown in Figure A (-line cross-sectional view), a conductive sleeve (copper sleeve) is attached to the conductor end of the water-cooled cable B'.
C' is compressed and connected, the compression sleeve is threaded and a concave groove 4' is provided for the cooling water passage, and the threaded sleeve is screwed into the threaded groove 3' of the terminal fitting A';
It is known to attach the jacket end 9'a' of the water-cooled cable B' to the terminal fitting A' with a tightening band 11' (Japanese Utility Model Publication No. 49-28630).
しかしながら、この水冷ケーブルの端末部にお
いては、電気的接続の電気的接触面積として関与
する螺子切りスリーブと端子金具との界面に冷却
水通路用凹溝４′を設けているために、上記電気
的接触面積の減少を避け得ず電気的に不利であ
る。この不利を軽減するために、冷却水通路用凹
溝４′の断面寸法を小さくすれば、冷却水流通抵
抗が増大し、水冷上不利である。 However, in the terminal part of this water-cooled cable, since the concave groove 4' for the cooling water passage is provided at the interface between the threaded sleeve and the terminal fitting, which are involved as the electrical contact area for electrical connection, the above-mentioned electrical This is electrically disadvantageous since the contact area inevitably decreases. In order to alleviate this disadvantage, if the cross-sectional dimension of the cooling water passage concave groove 4' is made smaller, the cooling water flow resistance increases, which is disadvantageous in terms of water cooling.
本考案の目的は電気的接触並びに冷却水流通抵
抗の何れの要求をも充足し得る水冷ケーブルの端
末部を提供することにある。
An object of the present invention is to provide a water-cooled cable terminal that can satisfy both electrical contact and cooling water flow resistance requirements.
本考案に係る水冷ケーブルの端末部は、筒状体
の内面中間に冷却水流通抵抗を低抵抗にする環状
溝を設け、該環状溝と筒状体一端との間の内面に
螺子溝を刻設し、上記筒状体一端の端面から上記
環状溝に達する直線状の冷却水導通孔をほぼ同心
円上に所定間隔を隔てて多数個設けてなる端子金
具の上記螺子溝に、水冷ケーブルの導体端に結着
させる螺子金具を螺結し、水冷ケーブルの外被端
を上記の端子金具に被着したことを特徴とする構
成である。
The end portion of the water-cooled cable according to the present invention is provided with an annular groove that lowers cooling water flow resistance in the middle of the inner surface of the cylindrical body, and a threaded groove is carved on the inner surface between the annular groove and one end of the cylindrical body. The conductor of the water-cooled cable is inserted into the threaded groove of the terminal fitting, which has a plurality of linear cooling water passage holes extending from the end face of one end of the cylindrical body to the annular groove at predetermined intervals on a substantially concentric circle. This structure is characterized in that a screw fitting is screwed to the end, and the jacket end of the water-cooled cable is attached to the terminal fitting.
以下、図面により本考案を説明する。 The present invention will be explained below with reference to the drawings.
第１図Ａは本考案に係る水冷ケーブルの端末部
を示す縦断面図、第１図Ｂは第１図Ａにおける
−線断面図である。 FIG. 1A is a longitudinal cross-sectional view showing the end portion of the water-cooled cable according to the present invention, and FIG. 1B is a cross-sectional view taken along the line -- in FIG. 1A.
第１図Ａ並びに第１図Ｂにおいて、Ａは端子金
具であり、金具本体をなす筒状体（例えば、銅
製）１の内面中間に環状溝２が設けられ、該環状
溝２と筒状体１の一端との間の内面には螺子溝３
が刻設されていると共に筒状体１の一端の端面か
ら環状溝２に達する直線状の多数個の冷却水導通
孔４，４…が図示するようにほぼ同心円上に所定
間隔を隔てて設けられている。 In FIGS. 1A and 1B, A is a terminal fitting, and an annular groove 2 is provided in the middle of the inner surface of a cylindrical body (for example, made of copper) 1 constituting the metal fitting body, and the annular groove 2 and the cylindrical body There is a screw groove 3 on the inner surface between the one end of 1 and
are engraved therein, and a large number of linear cooling water passage holes 4, 4... extending from the end face of one end of the cylindrical body 1 to the annular groove 2 are provided at predetermined intervals on a substantially concentric circle as shown in the figure. It is being
５は端子金具Ａの一端外周に設けた係止歯、６
および７はそれぞれ端子金具Ａの他端に設けた外
部ホース接続用インサート部および冷却水通路で
ある。 5 is a locking tooth provided on the outer periphery of one end of the terminal fitting A; 6
and 7 are an insert portion for connecting an external hose and a cooling water passage provided at the other end of the terminal fitting A, respectively.
Ｂは水冷ケーブルであり、可撓導線８を可撓性
の絶縁体外被９（例えば、ゴムホース）内に挿通
し、可撓導体８と外被９との間に冷却水を流通す
るものである。 B is a water-cooled cable in which a flexible conductor 8 is inserted into a flexible insulating sheath 9 (for example, a rubber hose), and cooling water is passed between the flexible conductor 8 and the sheath 9. .
Ｃは水冷ケーブルＢの導体８端に結着せる螺子
金具であり、例えば、導体８端にスリーブ１０
（銅製）を圧着し、その外面に螺子切り１０ａを
施してある。 C is a screw fitting attached to the 8th end of the conductor of the water-cooled cable B. For example, a sleeve 10 is attached to the 8th end of the conductor.
(made of copper) is crimped, and the outer surface is threaded 10a.
この螺子金具Ｃは上記端子金具Ａの螺子溝３に
螺結してある。 This metal screw C is screwed into the screw groove 3 of the terminal metal A.
９ａは水冷ケーブルの外被端であり、端子金具
Ａの上記係止用溝５上に被着し、その上に締付バ
ンド１１を緊締してある。 Reference numeral 9a designates the jacket end of the water-cooled cable, which is placed on the locking groove 5 of the terminal fitting A, and a tightening band 11 is tightened thereon.
上記において、端子金具Ａにおける環状溝２の
冷却水流通抵抗は、環状溝２が端子金具Ａ内面の
全周に開放されているので低抵抗であり、また、
環状溝２とケーブル内冷却通路１２との間の流通
抵抗も、それらの間を直線状の多数個の冷却水導
通孔４，４…で連通してあるので頗る低抵抗であ
る。従つて、外部冷却水源とケーブル内冷却水通
路とを低い流通抵抗で連通できる。また、導体端
の螺子金具Ｃと端子金具Ａの螺子溝３との間は全
面において螺結してあるから、電気的接触面積を
よく保持でき、秀れた電気的導通性を確保でき
る。 In the above, the cooling water flow resistance of the annular groove 2 in the terminal fitting A is low because the annular groove 2 is open to the entire circumference of the inner surface of the terminal fitting A.
The flow resistance between the annular groove 2 and the cable cooling passage 12 is also extremely low because they are communicated through a large number of linear cooling water passage holes 4, 4, . . . . Therefore, the external cooling water source and the cable internal cooling water passage can be communicated with each other with low flow resistance. Further, since the threaded metal fitting C at the end of the conductor and the threaded groove 3 of the terminal metal fitting A are screwed together over the entire surface, an electrical contact area can be well maintained and excellent electrical conductivity can be ensured.
本考案に係る水冷ケーブルの端末部は、上述し
た通り、金具本体をなす筒状体の内面中間に冷却
水流通抵抗を低抵抗にする環状溝を設けて、この
環状溝に、ほぼ同心円上に所定間隔を隔てて多数
個設けた直線状の冷却水導通孔を連通する構成と
したから、給水される冷却水は一旦環状溝部分に
て集水されここで送水圧を均一化してから多数個
の冷却水導通孔に送水されることとなり、従つ
て、ケーブル導体をその外周から均一にむらなく
冷却でき、安定した冷却状態に維持し得る。
As mentioned above, the terminal part of the water-cooled cable according to the present invention is provided with an annular groove that lowers the cooling water flow resistance in the middle of the inner surface of the cylindrical body that forms the metal fitting body, and the annular groove is formed approximately concentrically with the annular groove. Since the configuration is such that a large number of linear cooling water passage holes are provided at predetermined intervals and communicate with each other, the supplied cooling water is first collected in the annular groove, where the water pressure is equalized, and then the water is passed through a large number of holes. Therefore, the cable conductor can be uniformly and evenly cooled from its outer periphery, and a stable cooling state can be maintained.
また、端子金具と水冷ケーブルの導体端との接
続に螺合方式を採用したから、端子金具の再使用
が可能なことは勿論、導体端に取付る螺子金具の
螺子切り形状を同一としておけば複数サイズの水
冷ケーブルに対しても端子金具を流用できるとい
う経済的効果も奏する。 In addition, since we have adopted a screw-fitting method for connecting the terminal fitting and the conductor end of the water-cooled cable, it is not only possible to reuse the terminal fitting, but also by keeping the thread shape of the screw fitting attached to the conductor end the same. There is also an economical effect that terminal fittings can be used for water-cooled cables of multiple sizes.
第１図Ａは本考案に係る水冷ケーブルの端末部
を示す縦断面図、第１図Ｂは第１図Ａにおける
−線断面図、第２図Ａは従来の水冷ケーブルの
端末部を示す縦断面図、第２図Ｂは第２図Ａにお
ける−線断面図である。
図において、Ａは端子金具、１は筒状体、２は
環状溝、３は螺子溝、４，４…は孔、Ｂは水冷ケ
ーブル、８はケーブル導体、９はケーブル外被、
Ｃは螺子金具である。
FIG. 1A is a longitudinal cross-sectional view showing the terminal part of a water-cooled cable according to the present invention, FIG. 1B is a cross-sectional view taken along the line -- in FIG. 1A, and FIG. 2A is a longitudinal cross-sectional view showing the terminal part of a conventional water-cooled cable. The top view, FIG. 2B, is a cross-sectional view taken along the - line in FIG. 2A. In the figure, A is a terminal fitting, 1 is a cylindrical body, 2 is an annular groove, 3 is a screw groove, 4, 4... are holes, B is a water-cooled cable, 8 is a cable conductor, 9 is a cable jacket,
C is a screw metal fitting.
Claims (1)
する環状溝を設け、該環状溝と筒状体一端との間
の内面に螺子溝を刻設し、上記筒状体一端の端面
から上記環状溝に達する直線状の冷却水導通孔を
ほぼ同心円上に所定間隔を隔てて多数個設けてな
る端子金具の上記螺子溝に、水冷ケーブルの導体
端に結着せる螺子金具を螺結し、水冷ケーブルの
外被端を上記の端子金具に被着したことを特徴と
する水冷ケーブルの端末部。 An annular groove is provided in the middle of the inner surface of the cylindrical body to reduce the flow resistance of the cooling water, a threaded groove is carved on the inner surface between the annular groove and one end of the cylindrical body, and a threaded groove is formed on the inner surface between the annular groove and one end of the cylindrical body. A screw fitting to be attached to the conductor end of the water-cooled cable is screwed into the screw groove of the terminal fitting, which has a plurality of linear cooling water passage holes reaching the annular groove and spaced apart from each other at predetermined intervals on a substantially concentric circle; A terminal portion of a water-cooled cable, characterized in that the outer sheath end of the water-cooled cable is attached to the above-mentioned terminal fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985047886U JPH0412758Y2 (en) | 1985-03-30 | 1985-03-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985047886U JPH0412758Y2 (en) | 1985-03-30 | 1985-03-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61165040U JPS61165040U (en) | 1986-10-13 |
| JPH0412758Y2 true JPH0412758Y2 (en) | 1992-03-26 |
Family
ID=30563620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985047886U Expired JPH0412758Y2 (en) | 1985-03-30 | 1985-03-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0412758Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59107533U (en) * | 1983-01-07 | 1984-07-19 | 昭和電線電纜株式会社 | Terminal section of water cooling cable |
-
1985
- 1985-03-30 JP JP1985047886U patent/JPH0412758Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61165040U (en) | 1986-10-13 |
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