JP2015156327A - Connection metal fitting for connecting insulation coating wire to insoluble electrode, and insoluble electrode - Google Patents
Connection metal fitting for connecting insulation coating wire to insoluble electrode, and insoluble electrode Download PDFInfo
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- JP2015156327A JP2015156327A JP2014031266A JP2014031266A JP2015156327A JP 2015156327 A JP2015156327 A JP 2015156327A JP 2014031266 A JP2014031266 A JP 2014031266A JP 2014031266 A JP2014031266 A JP 2014031266A JP 2015156327 A JP2015156327 A JP 2015156327A
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本発明は、電気防食、海水電解による防汚等の水溶液電解等に使用される、中空円筒状の不溶性電極に絶縁被覆電線を接続するための接続金具およびその接続金具を使用した不溶性電極に関する。 The present invention relates to a connection fitting for connecting an insulation-coated electric wire to a hollow cylindrical insoluble electrode used for aqueous solution electrolysis such as anticorrosion and antifouling by seawater electrolysis, and an insoluble electrode using the connection fitting.
従来から、電気防食や海水電解による防汚等に使用される不溶性電極として、金属酸化物被覆電極、白金被覆電極または珪素鉄電極等がある。
不溶性電極にはリボン状、メッシュ状、棒状など様々な形状があるが、中空円筒状のものも今日広く用いられている。
不溶性電極は外部から電源の供給を受けて電流を発生させるため、電極は絶縁被覆電線と接続されなければならない。
この接続に関して、本出願人は先に実公平３−３９８９７号公報に示した考案を提案している。
Conventionally, as an insoluble electrode used for anticorrosion or antifouling by seawater electrolysis, there are a metal oxide coated electrode, a platinum coated electrode, a silicon iron electrode, and the like.
The insoluble electrode has various shapes such as a ribbon shape, a mesh shape, and a rod shape, but a hollow cylindrical shape is also widely used today.
Since the insoluble electrode receives a power supply from the outside and generates a current, the electrode must be connected to the insulated wire.
In connection with this connection, the present applicant has previously proposed the idea shown in Japanese Utility Model Publication No. 3-39897.
即ち、特許文献１には、円筒状の不溶性電極に絶縁被覆電線を接続するに際し、不溶性電極に絶縁被覆電線をハンダ付けすると、ハンダ付の熱衝撃によって、割れを発生する恐れがあること、また、不溶性電極が小径である場合には、ハンダ付作業が困難であること等から、これらの問題を解決するために、円筒状の不溶性電極に絶縁被覆電線を接続するための改良された接続金具が提案されている。
そして、該接続金具は、その概略を図１に示すように、先端よりも基端の直径が大きい円錐形状ねじと、この円錐形状ねじがねじ込まれる凹部が一方の端部に形成されるとともに、他方の端部に設けた穴に電線の芯線を差し込み、該端部と芯線とをハンダ付けして絶縁被覆電線を固着した軟質金属性の円筒状部材とからなり、円筒状の不溶性電極内に挿入された円筒状部材の裾部が、円錐形状ねじのねじ込みにより拡径して、不溶性電極に圧着する構造となっている。
That is, in Patent Document 1, when an insulation-coated wire is connected to a cylindrical insoluble electrode, if the insulation-coated wire is soldered to the insoluble electrode, there is a risk of cracking due to soldered thermal shock. In order to solve these problems, since the insoluble electrode has a small diameter, it is difficult to perform the soldering operation, etc. In order to solve these problems, the improved fitting for connecting the insulated coated electric wire to the cylindrical insoluble electrode Has been proposed.
And, as shown in FIG. 1, the connection fitting has a conical screw having a base diameter larger than the tip and a recess into which the conical screw is screwed, and is formed at one end. It consists of a soft metallic cylindrical member in which a core wire of an electric wire is inserted into a hole provided at the other end portion, and the end portion and the core wire are soldered to fix an insulation-coated electric wire, and is formed in a cylindrical insoluble electrode. The skirt portion of the inserted cylindrical member has a structure in which the diameter is increased by screwing a conical screw and is crimped to the insoluble electrode.
従来の不溶性電極は、それ自体が水中や土中等の電解質中に浸漬または埋設されて使用されるが、不溶性電極と絶縁被覆電線との接続部も電解質中に浸漬等されて使用されることがある。
不溶性電極と絶縁被覆電線との接続部が電解質中に晒されている場合には、通電したとき接続部が溶出し短時間で断線するので、この部分の絶縁樹脂充填処理が必要となるが、このための方法として、流動性のある電気絶縁樹脂を電極端から流し込み、固化させる方法も広く知られている。
Conventional insoluble electrodes are used by being immersed or embedded in an electrolyte such as water or soil, but the connecting portion between the insoluble electrode and the insulated coated electric wire may also be used by being immersed in the electrolyte. is there.
When the connection part between the insoluble electrode and the insulation-coated wire is exposed in the electrolyte, the connection part elutes when it is energized and breaks in a short time. As a method for this purpose, a method of pouring and solidifying a fluid electric insulating resin from the end of the electrode is also widely known.
しかし、前記特許文献１に示される不溶性電極の接続金具においては、円柱状部材の凹部内に円錐形状ねじをねじ込む際に、絶縁被覆電線がねじれて円柱状部材の裾部がうまく開かず、不溶性電極内面に接続部を固定するのに長時間要し、また、絶縁被覆電線に撚りができて、撚りを戻す作業が必要になり、絶縁被覆電線の把持部のシース（外皮）や芯線に傷が付くという問題もあった。
また、絶縁被覆電線の芯線を接続金具にはんだ付けするにあたり、接続金具の側面に溝を形成し、この溝の中に芯線をはんだ付けで取り付ける試みもなされているが、不溶性電極内面に接続金具を密着固定する際には、不溶性電極内面と接続金具側面の溝に取り付けられた芯線との接続部には大きな力がかかるため、強固なはんだ付けを行ったとしても、芯線が接続金具から離れやすくなるという問題は解消されない。そのため、はんだ付けの延長を大きくとる必要があり、作業に時間がかかるばかりか、はんだが外れないように、接続金具取り付け作業に慎重さが必要となり、作業コスト、作業負担が大きくなる。
また、不溶性電極内の接続金具に取り付けた芯線を絶縁処理する際に、不溶性電極の内部空間は接続金具で２分されているので、電気絶縁樹脂を不溶性電極の一方の側から内部に充填し、固化した後で、次に不溶性電極の他方の側から電気絶縁樹脂を充填し固化させなければならず、絶縁樹脂充填処理作業は２回に分けて行わなければならないという煩雑さがあった。
However, in the insoluble electrode connection fitting shown in Patent Document 1, when the conical screw is screwed into the concave portion of the columnar member, the insulation-coated electric wire is twisted and the bottom of the columnar member does not open well. It takes a long time to fix the connection part to the inner surface of the electrode, and the insulation-coated electric wire can be twisted, and it is necessary to return the twist, and the sheath (sheath) and core wire of the insulation-coated electric wire gripping part are damaged. There was also a problem of being attached.
In addition, when soldering the core wire of an insulation-coated wire to a connection fitting, an attempt has been made to form a groove on the side of the connection fitting and solder the core wire into the groove. When tightly fixing the wire, a large force is applied to the connection between the inner surface of the insoluble electrode and the core wire attached to the groove on the side of the connection bracket. The problem of becoming easier is not solved. For this reason, it is necessary to increase the length of soldering, and not only does the work take time, but also cautiousness is required in attaching the fitting to prevent the solder from being removed, resulting in an increase in work cost and work load.
In addition, when insulating the core wire attached to the connection fitting in the insoluble electrode, the inner space of the insoluble electrode is divided into two by the connection fitting. Then, after solidifying, the insulating resin must be filled and solidified from the other side of the insoluble electrode, and the insulating resin filling treatment operation must be performed in two steps.
本発明は、上記従来技術の課題を解決すべくなされたものであって、接続金具の構造について鋭意研究を進めたところ、接続金具として２分割の接続金具を使用し、この接続金具をボルト等で締結することで、絶縁被覆電線のねじれ発生を招くことなく、不溶性電極内面に確実に密着固定させて導通を図ることができるとともに、２分割した夫々の接続金具の側面をその軸方向に沿って一部切り欠くことで、電気絶縁のための絶縁樹脂充填作業を１回で完了させることができ、従来の諸問題を解消し得ることを見出したのである。 The present invention has been made to solve the above-described problems of the prior art, and as a result of diligent research on the structure of the connection fitting, a two-piece connection fitting is used as the connection fitting. By tightening with, it is possible to ensure that the insulation-coated electric wire is tightly fixed to the inner surface of the insoluble electrode without causing twisting, and to conduct, and the side surfaces of each of the two divided fittings along the axial direction thereof. It has been found that by partially cutting out, the filling operation of the insulating resin for electrical insulation can be completed at once, and the conventional problems can be solved.
本発明は、上記知見の基づいてなされたものであり、
「（１） 不溶性電極に絶縁被覆電線を接続するための接続金具であって、
接続金具（１）は、接続金具（１Ａ）と接続金具（１Ｂ）からなり、接続金具（１Ａ）と接続金具（１Ｂ）は、接続金具（１Ａ）の端部に形成された斜面（１ａ）と、接続金具（１Ｂ）の端部に形成された斜面（１ｂ）で相対向し、接続金具（１Ａ）の斜面（１ａ）と反対側の端部には絶縁被覆電線（７）が接続され、接続金具（１Ｂ）の斜面（１ｂ）と反対側の端部にはボルト（２）が挿入されるボルト挿入口（２１）が形成され、接続金具（１Ｂ）のボルト挿入口（２１）からボルト（２）を挿入し、接続金具（１Ｂ）を貫通して接続金具（１Ａ）の内周に形成された雌ねじと螺合して接続金具（１Ａ）と接続金具（１Ｂ）を接続し、該ボルト（２）をねじ込んで締め付けることにより、接続金具（１Ａ）と接続金具（１Ｂ）は斜面（１ａ）と斜面（１ｂ）に沿って、それぞれの中心軸に対して垂直方向かつ相互に逆方向にずれて段差（Ｈ１，Ｈ２）を形成して締結され、かつ、接続金具（１Ａ）と接続金具（１Ｂ）からなる接続金具（１）の外周面が、中空電極（３）内面と密着固定されていることを特徴とする不溶性電極に絶縁被覆電線を接続するための接続金具。
（２） 接続金具（１Ａ）と接続金具（１Ｂ）とからなる接続金具（１）の少なくとも一方は、その外周円の一部が軸方向に沿って弓形に切り取られた半円柱体形状であって、中空電極（３）内面と接続金具（１）との間に形成される空間は、中空電極（３）の軸方向に沿って連通していることを特徴とする前記（１）に記載の不溶性電極に絶縁被覆電線を接続するための接続金具。
（３） 絶縁被覆電線（７）が接続される接続金具（１Ａまたは１Ｂ）の中空電極（３）内面と密着する外周面の円弧頂部には、電気接続点（５）が突出形成されていることを特徴とする前記（１）または（２）に記載の不溶性電極に絶縁被覆電線を接続するための接続金具。
（４） 絶縁被覆電線（７）は、かしめ（９）により接続金具（１Ａ）に接続されていることを特徴とする前記（１）〜（３）のいずれかに記載の不溶性電極に絶縁被覆電線を接続するための接続金具。
（５） 中空電極（３）の内部であって、かつ、接続金具（１Ａ）から離れた位置の絶縁被覆電線（７）には、水分侵入防止部材（９１）が取り付けてあることを特徴とする前記（１）〜（４）のいずれかに記載の不溶性電極に絶縁被覆電線を接続するための接続金具。」
に特徴を有するものである。
The present invention has been made based on the above findings,
“(1) A connection fitting for connecting an insulated wire to an insoluble electrode,
The connection fitting (1) includes a connection fitting (1A) and a connection fitting (1B). The connection fitting (1A) and the connection fitting (1B) are inclined surfaces (1a) formed at the end of the connection fitting (1A). And an inclined surface (1b) formed at the end of the connection fitting (1B), and an insulating coated electric wire (7) is connected to the end of the connection fitting (1A) opposite to the inclined surface (1a). A bolt insertion port (21) into which the bolt (2) is inserted is formed at the end opposite to the inclined surface (1b) of the connection fitting (1B), from the bolt insertion port (21) of the connection fitting (1B). Insert the bolt (2), pass through the connection fitting (1B) and screw into the female screw formed on the inner periphery of the connection fitting (1A) to connect the connection fitting (1A) and the connection fitting (1B), By screwing and tightening the bolt (2), the connection fitting (1A) and the connection fitting (1B) are inclined (1 ) And along the slope (1b), is fastened to form a step (H 1, H 2) deviates in the opposite direction in the vertical direction and mutually to each central axis, and a fitting (1A) A connection fitting for connecting an insulation-coated electric wire to an insoluble electrode, characterized in that the outer peripheral surface of the connection fitting (1) made of the connection fitting (1B) is closely fixed to the inner surface of the hollow electrode (3).
(2) At least one of the connection fittings (1) including the connection fitting (1A) and the connection fitting (1B) has a semi-cylindrical body shape in which a part of the outer circumference circle is cut out in an arc shape along the axial direction. The space formed between the inner surface of the hollow electrode (3) and the connection fitting (1) communicates along the axial direction of the hollow electrode (3). A fitting for connecting an insulated wire to an insoluble electrode.
(3) An electrical connection point (5) protrudes from the top of the circular arc of the outer peripheral surface that is in close contact with the inner surface of the hollow electrode (3) of the connection fitting (1A or 1B) to which the insulation-coated electric wire (7) is connected. A connection fitting for connecting an insulation-coated electric wire to the insoluble electrode according to (1) or (2) above.
(4) The insulative coated electric wire (7) is connected to the connection fitting (1A) by caulking (9), and the insoluble electrode according to any one of the above (1) to (3) is insulated. Connecting bracket for connecting wires.
(5) A moisture intrusion prevention member (91) is attached to the insulation-coated electric wire (7) located inside the hollow electrode (3) and away from the connection fitting (1A). A connection fitting for connecting an insulation-coated electric wire to the insoluble electrode according to any one of (1) to (4). "
It has the characteristics.
また、本発明は、
「（６） 前記（１）〜（５）のいずれかに記載の不溶性電極に絶縁被覆電線を接続するための接続金具（１）を、中空円筒状の不溶性電極の内部に密着固定したことを特徴とする不溶性電極。
（７） 中空円筒状の不溶性電極の内部には、電気絶縁樹脂（８）が充填されていることを特徴とする前記（６）に記載の不溶性電極。
（８） 前記（６）または（７）に記載される不溶性電極を複数個配置し、それぞれの絶縁被覆電線（７）の一端を接続金具（１Ａ）に接続するとともに、その他端を、他の不溶性電極に設けられた接続金具（１Ｂ）のボルト（２）に直列になるように接続することを特徴とする不溶性電極群。」
に特徴を有するものである。
The present invention also provides:
“(6) The connection fitting (1) for connecting the insulation-coated electric wire to the insoluble electrode according to any one of (1) to (5) is closely fixed to the inside of the hollow cylindrical insoluble electrode. Features insoluble electrodes.
(7) The insoluble electrode according to (6), wherein the hollow insoluble electrode is filled with an electrically insulating resin (8).
(8) A plurality of insoluble electrodes described in the above (6) or (7) are arranged, one end of each insulation-coated electric wire (7) is connected to the connection fitting (1A), and the other end is connected to another An insoluble electrode group, wherein the insoluble electrode group is connected in series with a bolt (2) of a connection fitting (1B) provided on the insoluble electrode. "
It has the characteristics.
以下、本発明について、図面とともに詳細に説明する。 Hereinafter, the present invention will be described in detail with reference to the drawings.
図２に、本発明の接続金具（１Ａ）と接続金具（１Ｂ）からなる接続金具（１）を示すが、接続金具（１Ａ）と接続金具（１Ｂ）は、接続金具（１Ｂ）の端部のボルト挿入口（２１）から挿入されるボルト（２）によって締結される。 FIG. 2 shows a connection fitting (1) comprising the connection fitting (1A) and the connection fitting (1B) of the present invention. The connection fitting (1A) and the connection fitting (1B) are end portions of the connection fitting (1B). It is fastened by the bolt (2) inserted from the bolt insertion port (21).
図３に示すように、接続金具（１Ａ）と接続金具（１Ｂ）には、それぞれ中心軸に沿って穴が設けられているが、接続金具（１Ａ）の穴には接続金具（１Ｂ）の穴よりも口径が小さな雌ねじ（Ｓ）が設けられており、ボルト（２）の先端が、接続金具（１Ａ）の穴の雌ねじ（Ｓ）に螺合することによって接続金具（１Ａ）と接続金具（１Ｂ）が締結される。 As shown in FIG. 3, the connection fitting (1A) and the connection fitting (1B) are each provided with a hole along the central axis, but the connection fitting (1A) has a hole formed in the hole of the connection fitting (1B). A female screw (S) having a smaller diameter than the hole is provided, and the tip of the bolt (2) is screwed into the female screw (S) of the hole of the connecting metal (1A), thereby connecting the connecting metal (1A) and the connecting metal. (1B) is fastened.
また、接続金具（１Ａ）の斜面（１ｂ）と反対側の端部には、頭部に電線接続スリーブ（４ａ）を備えたボルト（４ｂ）からなる電線接続具（４）が、接続金具（１Ａ）の端部に形成された雌ねじ（Ｓ）に螺合することによって固定される。そして、絶縁被覆電線（７）のねじれ発生を招くことなく、絶縁被覆電線（７）と接続金具（１）と中空電極（３）の導通が図られる。 In addition, at the end of the connection fitting (1A) opposite to the inclined surface (1b), a wire connector (4) comprising a bolt (4b) having a wire connection sleeve (4a) at the head is connected to the connection fitting ( It is fixed by screwing into a female screw (S) formed at the end of 1A). And conduction | electrical_connection of an insulation coating electric wire (7), a connection metal fitting (1), and a hollow electrode (3) is achieved, without causing the twist generation | occurrence | production of an insulation coating electric wire (7).
図４に示すように、接続金具（１Ａ）と接続金具（１Ｂ）の対向する面には、それぞれの対向面を斜めにカットした斜面（１ａ）、斜面（１ｂ）を形成し、接続金具（１Ｂ）の端部のボルト挿入口（２１）からボルト（２）を挿入してねじ込み、接続金具（１Ａ）と接続金具（１Ｂ）を締め付けると、接続金具（１Ａ）と接続金具（１Ｂ）は、それぞれの中心軸と垂直方向にずれて、接続金具（１Ａ）と接続金具（１Ｂ）は斜面（１ａ）と斜面（１ｂ）に沿って、それぞれの中心軸に対して垂直方向かつ相互に逆方向にずれて（移動して）段差（Ｈ１，Ｈ２）を形成して締結されるとともに、中空電極（３）内面に押し付けられ、接続金具本体（１）が中空電極（３）に密着固定される。
その後、中空電極（３）の内部に電気絶縁樹脂（８）を流し込み充填固化する。
なお、図３に示した接続スリーブ（４ａ）は、図４に示すように、かしめ（９）ることによりボルト（４ｂ）からなる電線接続具（４）に強固に確実に固定されていることが望ましい。
As shown in FIG. 4, slopes (1 a) and (1 b) obtained by obliquely cutting the facing surfaces are formed on the opposing surfaces of the connection fitting (1 </ b> A) and the connection fitting (1 </ b> B). When the bolt (2) is inserted and screwed in from the bolt insertion port (21) at the end of 1B), and the connection fitting (1A) and the connection fitting (1B) are tightened, the connection fitting (1A) and the connection fitting (1B) are The connecting metal fitting (1A) and the connecting metal fitting (1B) are perpendicular to each central axis and opposite to each other along the inclined surface (1a) and the inclined surface (1b). It is displaced (moved) in the direction to form a step (H 1 , H 2 ) and fastened, and is pressed against the inner surface of the hollow electrode (3), so that the connection fitting body (1) is in close contact with the hollow electrode (3) Fixed.
Thereafter, the electric insulating resin (8) is poured into the hollow electrode (3) to be solidified.
In addition, as shown in FIG. 4, the connection sleeve (4a) shown in FIG. 3 is firmly and securely fixed to the electric wire connector (4) composed of the bolt (4b) by caulking (9). Is desirable.
図５（ａ）に示すように、接続金具（１Ａ）と接続金具（１Ｂ）からなる接続金具（１）は、中空円（ドーナッツ状）の外周円の一部を軸方向に沿って弓形に切り取った半円柱体形状とすることが望ましい。
接続金具（１）をこのような形状とすることによって、中空円筒状の不溶性電極の内部に、電気絶縁樹脂（８）を流し込み充填する場合、不溶性電極の一方の端部から樹脂を流し込むことによって、中空円筒状の不溶性電極の内部全体に樹脂がいきわたるため、従来のように、不溶性電極の一方の端部から樹脂を流し込んだ後、これが凝固するのを待って、他方の端部からも再度樹脂を流し込むという作業が不要となり、樹脂充填の作業効率が向上する。
また、図５（ｂ）に示すように、外周円の切り取りは、１箇所ではなく複数個所であってもよい。
As shown in FIG. 5 (a), the connection fitting (1) composed of the connection fitting (1A) and the connection fitting (1B) has a hollow circle (doughnut-shaped) part of the outer peripheral circle formed into an arcuate shape along the axial direction. It is desirable to have a semi-cylindrical shape cut out.
By forming the connection fitting (1) in such a shape, when the electric insulating resin (8) is poured and filled into the hollow cylindrical insoluble electrode, the resin is poured from one end of the insoluble electrode. Since the resin spreads throughout the inside of the hollow cylindrical insoluble electrode, after pouring the resin from one end of the insoluble electrode as in the past, it waits for this to solidify and then again from the other end. The work of pouring resin becomes unnecessary, and the work efficiency of resin filling is improved.
Further, as shown in FIG. 5B, the outer peripheral circle may be cut out at a plurality of locations instead of one location.
また、図５（ａ）、（ｂ）に示すように、絶縁被覆電線（７）が接続される接続金具（１Ａまたは１Ｂ）の中空電極（３）内面と密着する外周面の円弧頂部には、電気接続点（５）を突出して形成することが、導通を確実なものとするうえで望ましい。
電気的接続点（５）としては、絶縁被覆電線（７）が接続される接続金具（１Ａ）の中空電極（３）内面と密着する外周面の円弧頂部に、接続金具（１Ａ）の軸方向に沿って溝（６）を形成し、該溝（６）にハンダや導電性樹脂を盛る、接続金具（１Ａ）の側面の円弧頂部に金属ビスやリベットを立てる等の手段がある。
Further, as shown in FIGS. 5A and 5B, the circular arc top portion of the outer peripheral surface in close contact with the inner surface of the hollow electrode (3) of the connection fitting (1A or 1B) to which the insulation-coated electric wire (7) is connected is provided. In order to ensure conduction, it is desirable to project the electrical connection point (5).
As the electrical connection point (5), the axial direction of the connection fitting (1A) is formed on the top of the circular arc of the outer peripheral surface that is in close contact with the inner surface of the hollow electrode (3) of the connection fitting (1A) to which the insulated wire (7) is connected. There are means such as forming a groove (6) along the surface and depositing solder or conductive resin in the groove (6), or setting a metal screw or a rivet on the top of the circular arc on the side of the connection fitting (1A).
前述した絶縁被覆電線（７）を接続した接続金具（１）を中空電極（３）に密着固定し、電極内部にエポキシ樹脂等の絶縁性樹脂（８）を充填することによって、不溶性電極（１０）が作製される。
接続金具（１）が半円柱体形状である場合には、中空電極（３）の内部に、一方の端部から樹脂を流し込むことによって、樹脂の充填作業を完了させることができる。
また、中空電極（３）の内部であって、かつ、接続金具（１Ａ）から離れた位置の絶縁被覆電線（７）に水分侵入防止部材（９１）を取り付けた場合には、樹脂の空隙、間隙に沿って電線接続具（４）にまで水分が進入することを防止するため、不溶性電極の早期の劣化を防止することができる。
The connection fitting (1) to which the above-described insulation-coated electric wire (7) is connected is firmly fixed to the hollow electrode (3), and the inside of the electrode is filled with an insulating resin (8) such as an epoxy resin, whereby an insoluble electrode (10 ) Is produced.
When the connection fitting (1) has a semi-cylindrical shape, the resin filling operation can be completed by pouring the resin into the hollow electrode (3) from one end.
Further, when the moisture intrusion prevention member (91) is attached to the insulation-coated electric wire (7) inside the hollow electrode (3) and away from the connection fitting (1A), the resin gap, In order to prevent moisture from entering the electric wire connector (4) along the gap, early deterioration of the insoluble electrode can be prevented.
本発明では、前述した不溶性電極（１０）を直列に複数個接続することによって、不溶性電極（１０）群を構成することができる。
不溶性電極（１０）群は、例えば、一端を接続金具（１Ａ）に接続した絶縁被覆電線（７）の他端を、他の不溶性電極に設けられた接続金具（１Ｂ）のボルト（２）に直列になるように接続することによって構成することができ、これにより、長期にわたる安定的な防食効果が期待される
In the present invention, a group of insoluble electrodes (10) can be formed by connecting a plurality of the insoluble electrodes (10) described above in series.
The insoluble electrode (10) group includes, for example, the other end of the insulation-coated electric wire (7) having one end connected to the connection fitting (1A) and the bolt (2) of the connection fitting (1B) provided on the other insoluble electrode. It can be configured by connecting in series, which is expected to have a long-term stable anticorrosive effect
本発明の接続金具（１）は、接続金具（１Ａ）と接続金具（１Ｂ）からなり、接続金具（１Ａ）、（１Ｂ）をボルト（２）で締め付けると、穴の口径が大きな接続金具（１Ｂ）が中心軸と垂直方向にずれて接続金具（１Ａ）と接続金具（１Ｂ）間に段差（Ｈ１，Ｈ２）ができ、接続金具（１Ａ）側面の円弧頂部が中空電極（３）の内面に接触する。また、接続金具（１Ｂ）も中空電極（３）の反対側の内面に接触して接続金具（１）が中空電極（３）に密着固定される。
また、穴が雌ねじ（Ｓ）加工されている接続金具（１Ａ）の端部に電線接続具（４）のボルト部（４ｂ）をねじ込んだ後、電線接続スリーブ（４ａ）にハンダ付け或いはスリーブをかしめ（９）て絶縁被覆電線（７）を電線接続具（４）に取り付けることにより、中空電極（３）と接続金具（１）と絶縁被覆電線（７）との間での確実な導通が図られる。
本発明は、接続金具（１Ａ）、（１Ｂ）の斜めにカットされた斜面（１ａ）、（１ｂ）を合わせて、穴の口径が大きい接続金具（１Ｂ）のボルト挿入口（２１）からボルト（２）を挿入し、予め電線（７）を電線接続具（４）に取り付けた接続金具（１Ａ）の雌ねじ（Ｓ）にボルト（２）をねじ込んで締め付けることができるので、中空電極（３）への接続金具の取り付けがきわめて簡単になる。
また、接続金具（１Ａ）、（１Ｂ）を締め付ける際にボルト（２）の回転方向（右回り）にトルクがかかるが、特許文献１のように円柱状部材の裾部を広げるような力は必要ないので、絶縁被覆電線（７）が捩れて電線に損傷を与えたりする等のことがない。
The connection fitting (1) of the present invention comprises a connection fitting (1A) and a connection fitting (1B). When the connection fittings (1A) and (1B) are tightened with bolts (2), the connection fitting ( 1B) is displaced in the direction perpendicular to the central axis to form a step (H 1 , H 2 ) between the connection fitting (1A) and the connection fitting (1B), and the top of the arc on the side of the connection fitting (1A) is a hollow electrode (3) Touch the inner surface. Further, the connection fitting (1B) also contacts the inner surface on the opposite side of the hollow electrode (3), and the connection fitting (1) is tightly fixed to the hollow electrode (3).
Also, after screwing the bolt part (4b) of the wire connector (4) into the end of the connection fitting (1A) in which the hole is female threaded (S), soldering or attaching the sleeve to the wire connection sleeve (4a) By caulking (9) and attaching the insulated coated electric wire (7) to the electric wire connector (4), reliable conduction between the hollow electrode (3), the fitting (1) and the insulated coated electric wire (7) is achieved. Figured.
According to the present invention, the connecting metal fittings (1A) and (1B) are combined with the obliquely cut slopes (1a) and (1b), and the bolt is inserted from the bolt insertion port (21) of the connecting metal fitting (1B) having a large hole diameter. (2) can be inserted, and the bolt (2) can be screwed into the female screw (S) of the fitting (1A) in which the electric wire (7) is previously attached to the electric wire connector (4), so that the hollow electrode (3 The attachment of the connecting bracket to) becomes very easy.
Further, when tightening the connection fittings (1A) and (1B), torque is applied in the rotation direction (clockwise) of the bolt (2). Since it is not necessary, the insulation-coated electric wire (7) is not twisted to damage the electric wire.
また、本発明の接続金具（１）の別の態様によれば、接続金具（１Ａ）、（１Ｂ）同士を締め付けた際に中空電極（３）内面と接触する接続金具（１Ａまたは１Ｂ）の側面の円弧頂部の電気接続点（５）が中空電極（３）内面と接触するので、接続金具（１）と中空電極（３）との電気的接続がより確実に達成できる。 Further, according to another aspect of the connection fitting (1) of the present invention, the connection fitting (1A or 1B) that contacts the inner surface of the hollow electrode (3) when the connection fittings (1A) and (1B) are tightened together. Since the electrical connection point (5) at the top of the side arc is in contact with the inner surface of the hollow electrode (3), the electrical connection between the connection fitting (1) and the hollow electrode (3) can be achieved more reliably.
本発明の不溶性電極によれば、絶縁被覆電線（７）を接続した上記接続金具（１）を中空電極（３）の内部に挿入し固定した後、中空電極（３）内部に電気絶縁樹脂（８）を充填して製作されるが、接続金具（１）の円柱の一辺または複数辺が軸方向にカットされた半円柱形をしているので、中空電極（３）内面と接続金具（１）との間には、中空電極（３）の軸方向に沿って連通している空間が形成されているため、電気絶縁樹脂（８）が中空電極（３）内部と接続金具（１）との隙間から下側に流れ込み充填されることから、電気絶縁樹脂（８）の充填作業を一回で済ませることができる。
また、本発明の不溶性電極は、これを複数個配置し、それぞれの絶縁被覆電線（７）の一端を接続金具（１Ａ）に接続するとともに、その他端を、他の不溶性電極に設けられた接続金具（１Ｂ）のボルト（２）に直列になるように接続することによって、長期にわたっての安定的な防食効果が発揮されることが期待される。
According to the insoluble electrode of the present invention, after the connection fitting (1) to which the insulation-coated electric wire (7) is connected is inserted and fixed in the hollow electrode (3), an electric insulating resin ( 8) is manufactured by filling the hollow electrode (3) with the inner surface of the connection fitting (1) because the connection fitting (1) has a semi-cylindrical shape in which one or more sides of the cylinder are cut in the axial direction. ), A space communicating along the axial direction of the hollow electrode (3) is formed, so that the electric insulating resin (8) is connected to the inside of the hollow electrode (3) and the connection fitting (1). Therefore, the filling operation of the electric insulating resin (8) can be completed in one time.
In addition, the insoluble electrodes of the present invention are arranged in a plurality, and one end of each insulation-coated wire (7) is connected to the connection fitting (1A), and the other end is connected to another insoluble electrode. By connecting in series with the bolt (2) of the metal fitting (1B), it is expected that a stable anticorrosive effect over a long period of time will be exhibited.
本発明の実施例を、以下に図面とともに説明する。 Embodiments of the present invention will be described below with reference to the drawings.
接続金具（１）は、中空電極（３）内面より小径な中空円柱の一辺が軸方向にカットされた部分を含み、該部分は、中空のかまぼこ形をしている（図５（ａ）、（ｂ）参照）。
接続金具（１）は、側面で斜めにカットされた斜面（１ａ）、（１ｂ）をそれぞれ備える接続金具（１Ａ）、（１Ｂ）からなる（図３、図４参照）。
双方の接続金具（１Ａ）、（１Ｂ）の中心軸に沿って穴が設けられているが、接続金具（１Ａ）には雌ねじ穴（Ｓ）が設けられ、もう一方の接続金具（１Ｂ）の穴はストレートで接続金具（１Ａ）の雌ねじ穴（Ｓ）よりも口径は大きい（図３参照）。
接続金具（１Ａ）の円柱の頂点には軸方向に溝（６）が設けられている。溝は必ずしも接続金具（１Ａ）全長に設ける必要はなく、短い溝を一または複数設けてもよい。
接続金具（１Ａ）の溝（６）に頂点から少しはみ出す程度にハンダが盛られて、中空電極（３）内面との電気的接続点（５）として作用する（図５（ａ）、（ｂ）参照）。
The connection fitting (1) includes a portion in which one side of a hollow cylinder having a smaller diameter than the inner surface of the hollow electrode (3) is cut in the axial direction, and the portion has a hollow kamaboko shape (FIG. 5 (a), (See (b)).
The connection fitting (1) is composed of connection fittings (1A) and (1B) each having slopes (1a) and (1b) cut obliquely on the side surfaces (see FIGS. 3 and 4).
A hole is provided along the central axis of both the connection fittings (1A) and (1B). The connection fitting (1A) is provided with a female screw hole (S), and the other connection fitting (1B) The hole is straight and has a larger diameter than the female screw hole (S) of the connection fitting (1A) (see FIG. 3).
A groove (6) is provided in the axial direction at the top of the column of the connection fitting (1A). The grooves are not necessarily provided over the entire length of the connection fitting (1A), and one or more short grooves may be provided.
Solder is applied to such an extent that the groove (6) of the connection fitting (1A) slightly protrudes from the apex, and acts as an electrical connection point (5) with the inner surface of the hollow electrode (3) (FIGS. 5A and 5B). )reference).
まず、接続金具（１Ａ）、（１Ｂ）の斜めにカットされた斜面（１ａ）、（１ｂ）を対向させて、接続金具（１Ｂ）端部のボルト挿入口（２１）からボルト（２）を挿入し、接続金具（１Ａ）の雌ねじ穴（Ｓ）に緩くねじ込み、接続金具（１Ａ）、（１Ｂ）同士を仮止めする。
電線接続スリーブ（４ａ）に絶縁被覆電線（７）を接続した電線接続具（４）を、電線接続具（４）に形成した雄ねじ（４ｂ）を接続金具（１Ａ）の端（４１）の雌ねじ（Ｓ）にねじ込み、接続金具（１）と絶縁被覆電線（７）を接続する。
なお、絶縁被覆電線（７）の中空電極（３）内部に位置する範囲に水浸入防止部材（９１）を取り付けてもよい（図４参照）。
また、電線（７）に被せた電線接続スリーブ（４ａ）をかしめ（９）て水浸入防止部材（９１）を形成しても良く、また、水浸入防止部材（９１）としては、ゴム製のリングなどを使用してもよい。
First, the inclined surfaces (1a) and (1b) of the connection fittings (1A) and (1B) which are obliquely cut face each other, and the bolt (2) is removed from the bolt insertion port (21) at the end of the connection fitting (1B). Insert and loosely screw into the female screw hole (S) of the connection fitting (1A) to temporarily fix the connection fittings (1A) and (1B).
The wire connector (4) in which the insulation-coated wire (7) is connected to the wire connection sleeve (4a), the male screw (4b) formed on the wire connector (4) is the female screw at the end (41) of the connection fitting (1A) Screw in (S) and connect the fitting (1) and the insulated wire (7).
In addition, you may attach a water intrusion prevention member (91) in the range located inside the hollow electrode (3) of an insulation coating electric wire (7) (refer FIG. 4).
Alternatively, the water intrusion prevention member (91) may be formed by caulking (9) the wire connection sleeve (4a) covering the electric wire (7), and the water ingress prevention member (91) may be made of rubber. A ring or the like may be used.
次いで、上記接続金具（１）を、中空電極（３）内部に挿入する。
ボックススパナ等でボルト（２）を締め付け、接続金具（１Ａ）を接続金具（１Ｂ）側に引き寄せる。
これによって、接続金具（１Ａ）、（１Ｂ）同士の合わせ面である斜面（１ａ）、（１ｂ）が斜めにずれて段（Ｈ１，Ｈ２）ができ、接続金具（１Ａ）の側面の円弧頂部のハンダ（５）が中空電極（３）内面に接触する。
さらにボルト（２）を締め付けると、接続金具（１Ａ）側面の円弧頂部と、接続金具（１Ｂ）の斜面（１ｂ）の端とが中空電極（３）内面の反対方向に押し付けられ、接続金具（１）が固定される。
Next, the connection fitting (1) is inserted into the hollow electrode (3).
Tighten the bolt (2) with a box spanner or the like, and pull the connection fitting (1A) toward the connection fitting (1B).
As a result, the slopes (1a) and (1b), which are the mating surfaces of the connection fittings (1A) and (1B), are obliquely displaced to form steps (H 1 , H 2 ). The solder (5) at the top of the arc contacts the inner surface of the hollow electrode (3).
When the bolt (2) is further tightened, the top of the circular arc on the side of the connection fitting (1A) and the end of the inclined surface (1b) of the connection fitting (1B) are pressed in the opposite direction to the inner surface of the hollow electrode (3). 1) is fixed.
次いで、中空電極（３）を、絶縁被覆電線（７）を上向きにして立てかけ、底部をプラグ等で栓をする。
中空電極（３）の頭部から電気絶縁性樹脂（８）を内部に流し込む。
電気絶縁性樹脂（８）は、電極（３）内面と、一部が軸方向に沿って弓形に切り取られた半円柱体形状の接続金具（１）との隙間を通って底から上部まで一度に充填させることができる。
また、隙間を設けることにより、電気絶縁性樹脂（８）充填の際、接続金具（１）下の中空電極（３）の内部の空気が抜けるので、電気絶縁性樹脂（８）の巣ができない。
なお、絶縁被覆電線（７）の中空電極（３）内部に位置する範囲に水浸入防止部材（９１）を取り付ければ、電気絶縁性樹脂（８）硬化の際の収縮により万一、絶縁被覆電線（７）との間に隙間ができても、水の浸入を食い止め、接続金具（１）に到達しない。
Next, the hollow electrode (3) is stood with the insulation-coated electric wire (7) facing upward, and the bottom is plugged with a plug or the like.
An electrically insulating resin (8) is poured into the inside of the head of the hollow electrode (3).
The electrically insulating resin (8) passes through the gap between the inner surface of the electrode (3) and a semi-cylindrical connection fitting (1) partially cut in the axial direction from the bottom to the top once. Can be filled.
Further, by providing a gap, air inside the hollow electrode (3) under the connection fitting (1) escapes when the electrically insulating resin (8) is filled, so that the nest of the electrically insulating resin (8) cannot be made. .
In addition, if the water intrusion prevention member (91) is attached to the range located inside the hollow electrode (3) of the insulation-coated electric wire (7), the insulation-coated electric wire should not be damaged due to shrinkage when the electric insulating resin (8) is cured. Even if there is a gap with (7), it prevents water from entering and does not reach the connection fitting (1).
ボルト（２）の頭部にも電線接続具（４）と同様の電線接続スリーブ（４ａ）を設けて、絶縁被覆電線（７）をボルト（２）に接続すれば、電線の先に上記同様の作業で、他の不溶性電極（１０）を接続することができるので、複数の不溶性電極（１０）を一連に繋いだ不溶性電極群を製作することもできる。 If the same wire connection sleeve (4a) as the wire connection tool (4) is provided on the head of the bolt (2) and the insulation-coated wire (7) is connected to the bolt (2), the end of the wire is the same as above. Since the other insoluble electrodes (10) can be connected by the above operation, an insoluble electrode group in which a plurality of insoluble electrodes (10) are connected in series can be produced.
中空電極への電線の接続が確実、容易になり、電極内部への樹脂充填作業が一回で済むことによって、不溶性電極の中空円筒状電極組み立て作業が容易になる。 The connection of the electric wire to the hollow electrode becomes reliable and easy, and the resin filling operation into the electrode is completed once, so that the assembly operation of the hollow cylindrical electrode of the insoluble electrode is facilitated.
１ 接続金具
１Ａ 接続金具
１ａ 接続金具（１Ａ）の斜面
１Ｂ 接続金具
１ｂ 接続金具（１Ｂ）の斜面
２ ボルト
２１ ボルト挿入口
３ 中空電極
４ 電線接続具
４ａ 電線接続スリーブ
４ｂ 雄ねじ
５ 電気接続点
６ 溝
７ 絶縁被覆電線
８ 電気絶縁性樹脂
９ かしめ
９１ 水浸入防止部材
１０ 不溶性電極
Ｈ１，Ｈ２ 段差
Ｓ 雌ねじ
DESCRIPTION OF SYMBOLS 1 Connecting bracket 1A Connecting bracket 1a Slope 1B of connecting bracket (1A) Connecting bracket 1b Slope of connecting bracket (1B) 2 Bolt 21 Bolt insertion port 3 Hollow electrode 4 Wire connector 4a Wire connecting sleeve 4b Male screw 5 Electrical connection point 6 Groove 7 Insulated coated wire 8 Electrical insulating resin 9 Caulking 91 Water intrusion prevention member 10 Insoluble electrode H 1 , H 2 Step S Female thread
Claims (8)
接続金具（１）は、接続金具（１Ａ）と接続金具（１Ｂ）からなり、接続金具（１Ａ）と接続金具（１Ｂ）は、接続金具（１Ａ）の端部に形成された斜面（１ａ）と、接続金具（１Ｂ）の端部に形成された斜面（１ｂ）で相対向し、接続金具（１Ａ）の斜面（１ａ）と反対側の端部には絶縁被覆電線（７）が接続され、接続金具（１Ｂ）の斜面（１ｂ）と反対側の端部にはボルト（２）が挿入されるボルト挿入口（２１）が形成され、接続金具（１Ｂ）のボルト挿入口（２１）からボルト（２）を挿入し、接続金具（１Ｂ）を貫通して接続金具（１Ａ）の内周に形成された雌ねじと螺合して接続金具（１Ａ）と接続金具（１Ｂ）を接続し、該ボルト（２）をねじ込んで締め付けることにより、接続金具（１Ａ）と接続金具（１Ｂ）は斜面（１ａ）と斜面（１ｂ）に沿って、それぞれの中心軸に対して垂直方向かつ相互に逆方向にずれて段差（Ｈ１，Ｈ２）を形成して締結され、かつ、接続金具（１Ａ）と接続金具（１Ｂ）からなる接続金具（１）の外周面が、中空電極（３）内面と密着固定されていることを特徴とする不溶性電極に絶縁被覆電線を接続するための接続金具。 In connection fittings for connecting insulated wires to insoluble electrodes,
The connection fitting (1) includes a connection fitting (1A) and a connection fitting (1B). The connection fitting (1A) and the connection fitting (1B) are inclined surfaces (1a) formed at the end of the connection fitting (1A). And an inclined surface (1b) formed at the end of the connection fitting (1B), and an insulating coated electric wire (7) is connected to the end of the connection fitting (1A) opposite to the inclined surface (1a). A bolt insertion port (21) into which the bolt (2) is inserted is formed at the end opposite to the inclined surface (1b) of the connection fitting (1B), from the bolt insertion port (21) of the connection fitting (1B). Insert the bolt (2), pass through the connection fitting (1B) and screw into the female screw formed on the inner periphery of the connection fitting (1A) to connect the connection fitting (1A) and the connection fitting (1B), By screwing and tightening the bolt (2), the connection fitting (1A) and the connection fitting (1B) are inclined (1 ) And along the slope (1b), is fastened to form a step (H 1, H 2) deviates in the opposite direction in the vertical direction and mutually to each central axis, and a fitting (1A) A connection fitting for connecting an insulation-coated electric wire to an insoluble electrode, characterized in that the outer peripheral surface of the connection fitting (1) made of the connection fitting (1B) is closely fixed to the inner surface of the hollow electrode (3).
A plurality of insoluble electrodes according to claim 6 or 7 are arranged, one end of each insulation-coated electric wire (7) is connected to the fitting (1A), and the other end is provided on another insoluble electrode. An insoluble electrode group characterized by being connected in series with a bolt (2) of a connection fitting (1B).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014031266A JP6308798B2 (en) | 2014-02-21 | 2014-02-21 | Connection fitting and insoluble electrode for connecting an insulated wire to an insoluble electrode |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014031266A JP6308798B2 (en) | 2014-02-21 | 2014-02-21 | Connection fitting and insoluble electrode for connecting an insulated wire to an insoluble electrode |
Publications (3)
| Publication Number | Publication Date |
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| JP2015156327A true JP2015156327A (en) | 2015-08-27 |
| JP2015156327A5 JP2015156327A5 (en) | 2017-03-16 |
| JP6308798B2 JP6308798B2 (en) | 2018-04-11 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6383772U (en) * | 1986-11-20 | 1988-06-01 | ||
| US5090924A (en) * | 1991-04-24 | 1992-02-25 | Materials Protection Company | Cathodic protection anode, connector, and method of making |
| JPH0817488A (en) * | 1994-04-26 | 1996-01-19 | Sumitomo Wiring Syst Ltd | Terminal and cap for the same |
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2014
- 2014-02-21 JP JP2014031266A patent/JP6308798B2/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6383772U (en) * | 1986-11-20 | 1988-06-01 | ||
| US5090924A (en) * | 1991-04-24 | 1992-02-25 | Materials Protection Company | Cathodic protection anode, connector, and method of making |
| JPH0817488A (en) * | 1994-04-26 | 1996-01-19 | Sumitomo Wiring Syst Ltd | Terminal and cap for the same |
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| Publication number | Publication date |
|---|---|
| JP6308798B2 (en) | 2018-04-11 |
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