JPH0326765Y2 - - Google Patents

Description

【考案の詳細な説明】 〔産業上の利用分野〕 本考案は柱上配電機器、例えば高圧カツトアウ
トと電線との接続構造に関するもので、詳しくは
風圧による電線の振動によつて接続部の緩み、あ
るいは同部での導体折損が生じない接続構造に関
する。[Detailed description of the invention] [Field of industrial application] The present invention relates to a connection structure between pole-mounted power distribution equipment, such as high-voltage cutouts and electric wires. Or it relates to a connection structure in which conductor breakage does not occur in the same part.

〔従来の技術及びその問題点〕[Conventional technology and its problems]

第３図に示すように、柱上配電機器例えば変圧
器２への電線１の接続には第４図に示す高圧カツ
トアウト３が介設される。このカツトアウト３へ
の従来の電線接続は、第５図ａ，ｂに示すよう
に、現場にて、電線１の絶縁被覆４を剥ぎ取つて
導体５を露出させ、その電線端をカツトアウト３
のケーシング６の電線挿通孔７にゴムブツシユ８
を介して挿通し、前記導体５をカツトアウト３の
端子接続部９に挿入してねじ９′により締着して
いる。 As shown in FIG. 3, a high-voltage cutout 3 shown in FIG. 4 is interposed to connect the electric wire 1 to a pole-mounted power distribution device, such as a transformer 2. Conventional wire connection to the cutout 3 involves stripping off the insulation coating 4 of the wire 1 to expose the conductor 5 at the site, and connecting the end of the wire to the cutout 3, as shown in FIGS. 5a and 5b.
A rubber button 8 is inserted into the wire insertion hole 7 of the casing 6.
The conductor 5 is inserted into the terminal connecting portion 9 of the cutout 3 and fastened with a screw 9'.

しかしながら、上記接続構造においては、通
常、ブツシユ８と電線１間に間隙があり、電線１
がケーシング６に十分に保持されていないため、
風圧などによる電線１の振動が端子接続部９に直
接に伝わり、締着個所に繰り返し応力が加わり、
金属疲労を起して導体５が断線する危惧がある。 However, in the above connection structure, there is usually a gap between the bush 8 and the wire 1, and
is not sufficiently retained in the casing 6,
Vibration of the electric wire 1 due to wind pressure etc. is directly transmitted to the terminal connection part 9, and stress is repeatedly applied to the fastened part.
There is a risk that the conductor 5 will break due to metal fatigue.

また、従来の導体５は断面円形であるため、第
５図ｂのように、端子接続部９の孔内でねじ締め
により片側に寄つて締着される場合がある。この
状態は、同図において、右側に導体５が動けば締
着が緩むこととなるため、前記風圧による電線１
の振動により、導体５が動いて締着力がなくな
り、端子接続部９から導体５が抜ける危惧があ
る。 Furthermore, since the conventional conductor 5 has a circular cross section, it may be tightened to one side by screwing within the hole of the terminal connection portion 9, as shown in FIG. 5b. In this state, if the conductor 5 moves to the right in the same figure, the fastening will loosen, so the electric wire 1 due to the wind pressure
There is a risk that the conductor 5 will move due to the vibration and the tightening force will be lost, causing the conductor 5 to come off from the terminal connection part 9.

〔考案の目的〕[Purpose of invention]

本考案は、以上の点に留意し、上記危惧をなく
した接続構造を提供することを目的とする。 The present invention takes the above points into consideration and aims to provide a connection structure that eliminates the above concerns.

〔目的を達成するための手段〕[Means to achieve the purpose]

上記目的を達成するため、本考案にあつては、
電線の導体に角棒型端子を接続し、角棒型端子の
接続部上の角棒型端子と絶縁体とに亘つて、段付
部、絶縁部および振動屈曲緩和部とからなる絶縁
補強部を充実状態に設け、柱上配電機器の円筒状
電線挿入孔に絶縁補強部の段付部を圧嵌するとと
もに、柱上配電機器の端子接続部の丸孔に角棒型
端子を挿入し、その端子接続部に、前記丸孔の半
径方向のねじをねじ込んで、その先端を角棒型端
子側面に押圧し角棒型端子を端子接続部に圧接し
て電気的に接続したのである。 In order to achieve the above purpose, in this invention,
A square bar terminal is connected to the conductor of the electric wire, and an insulation reinforcement part consisting of a stepped part, an insulating part, and a vibration bending mitigation part is provided between the square bar terminal and the insulator on the connection part of the square bar terminal. the stepped part of the insulation reinforcement part is press-fitted into the cylindrical wire insertion hole of the pole-mounted power distribution equipment, and the square bar-shaped terminal is inserted into the round hole of the terminal connection part of the pole-mounted power distribution equipment, The radial screw of the round hole was screwed into the terminal connection portion, and the tip thereof was pressed against the side surface of the square rod type terminal to press the square rod type terminal into contact with the terminal connection portion to electrically connect.

〔作用〕[Effect]

以上の如く構成する本考案の柱上配電機器と電
線との接続構造にあつては、電線端末に段付部、
絶縁部、振動・屈曲緩和部からなる絶縁補強部を
設け、該絶縁補強部の段付部を配電機器、例えば
高圧カツトアウトの電線挿入孔に圧嵌することに
よつて、電線と高圧カツトアウトとの取付け部を
強固にし、絶縁部から電線側に延びる振動屈曲緩
和部によつて、風圧振動による電線の振動が電線
導体と高圧カツトアウトとの接続部に直接伝わら
ない。 In the connection structure between the pole-mounted power distribution equipment and the electric wire of the present invention configured as described above, the stepped portion at the end of the electric wire,
By providing an insulation reinforcing section consisting of an insulating section and a vibration/bending mitigation section, and press-fitting the stepped section of the insulating reinforcing section into the wire insertion hole of a power distribution device, for example, a high voltage cutout, the connection between the electric wire and the high voltage cutout can be improved. The attachment part is made strong, and the vibration bending relaxation part extending from the insulating part to the wire side prevents the vibration of the wire due to wind pressure vibration from being directly transmitted to the connection part between the wire conductor and the high voltage cutout.

また、柱上配電機器の端子接続部の丸孔に角棒
型端子を挿入し、それをねじで締着しているた
め、角棒型端子は、その断面角状の２角と丸孔内
面との圧接点及びねじとの圧接点の３点でもつ
て、丸孔内に圧接支持される。このため、絶縁補
強部が振動屈曲しても、その締着部は緩むことが
ない。 In addition, since the square bar terminal is inserted into the round hole of the terminal connection part of the pole-mounted power distribution equipment and is fastened with a screw, the square bar terminal has two corners with a square cross section and the inner surface of the round hole. The pressure contact point with the screw and the pressure contact point with the screw are also supported in pressure contact within the round hole. Therefore, even if the insulation reinforcing portion vibrates and bends, its fastening portion will not loosen.

〔実施例〕〔Example〕

以下、本考案の実施例を添付図面第１図及び第
２図に基づいて説明する。 Embodiments of the present invention will be described below with reference to the accompanying drawings, FIGS. 1 and 2.

まず、第２図に示すように、高圧カツトアウト
３に接続する電線１の接続端部の絶縁被覆４を所
要長さ剥ぎ取り、この露出導体５に角棒型端子１
０を金具１１により締着接続する。この角棒型端
子１０を接続した電線１に、角棒型端子１０の先
端を除き角棒型端子１０、角棒型端子１０と導体
５との接続部及び電線絶縁体（絶縁被覆４）に亘
つて絶縁被覆を施して絶縁補強部１２を設ける。
この絶縁補強部１２は、角棒型端子１０側が小径
の段部１２ａに形成され、電線１の絶縁被覆４側
に至るにしたがつて徐々に小径となり、そのテー
パ部１２ｂの外周面には多数の凹穴１３が形成さ
れて屈曲し易くしてある。すなわち、段部１２
ａ、絶縁部１２ｃ及び振動屈曲緩和部１２ｂから
成る。以上の構造の電線１、すなわち第２図に示
す構造の電線１は、工場にて量産する。 First, as shown in FIG.
0 is fastened and connected using a metal fitting 11. The square bar terminal 10, the connection part between the square bar terminal 10 and the conductor 5, and the wire insulator (insulation coating 4) are connected to the electric wire 1 to which this square bar terminal 10 is connected, excluding the tip of the square bar terminal 10. An insulation reinforcing portion 12 is provided by applying an insulation coating over the entire structure.
The insulation reinforcing portion 12 is formed into a stepped portion 12a having a small diameter on the square rod terminal 10 side, and gradually becomes smaller in diameter as it reaches the insulation coating 4 side of the wire 1, and has a large number on the outer peripheral surface of the tapered portion 12b. A recessed hole 13 is formed to facilitate bending. That is, the stepped portion 12
a, an insulating section 12c, and a vibration bending relaxation section 12b. The electric wire 1 having the above structure, that is, the electric wire 1 having the structure shown in FIG. 2, is mass-produced at a factory.

本考案は、この構造の電線１を現場にてカツト
アウト３に接続するものであり、第１図ａ，ｂに
示すように、絶縁補強部１２の段部１２ａをカツ
トアウト３のケーシング６の円筒状電線挿通孔７
に圧嵌して角棒型端子１０を挿通し、さらに、そ
の角棒型端子１０を端子接続部９の丸孔９ａに挿
入するとともにねじ９′により締着する。 In the present invention, the electric wire 1 having this structure is connected to the cutout 3 on site, and as shown in FIGS. Wire insertion hole 7
The square bar type terminal 10 is inserted into the terminal by pressure fitting, and then the square bar type terminal 10 is inserted into the round hole 9a of the terminal connecting portion 9 and fastened with the screw 9'.

この締着状態は、同図ｂに示すように、ねじ
９′の先端の丸孔９ａへの挿入につれ、角棒型端
子１０は丸孔９ａ内で移動して最も安定した状
態、すなわち、第１図ｂに示すように、ねじ９′
の先端が角棒型端子１０のフラツト面に垂直に接
し、その状態から角棒型端子１０を押して丸孔９
ａ内面に圧接する。この圧接状態の角棒型端子１
０は、その断面角状の２角と丸孔９ａ内面との圧
接点及びねじ９′との圧接点の３点でもつて丸孔
９ａ内に圧接支持されているため、振動等により
動いて抜け出ることがない。 As shown in FIG. 5B, this fastened state is the most stable state as the square rod terminal 10 moves within the round hole 9a as the tip of the screw 9' is inserted into the round hole 9a. As shown in Figure 1b, screw 9'
The tip of the terminal contacts the flat surface of the square bar terminal 10 perpendicularly, and from this state, push the square bar terminal 10 to insert it into the round hole 9.
aPress against the inner surface. Square bar type terminal 1 in this pressure-welded state
0 is supported in pressure contact within the round hole 9a at three points: the pressure contact point between the two corners of its square cross section and the inner surface of the round hole 9a, and the pressure contact point with the screw 9', so it moves and comes out due to vibration etc. Never.

また、段部１２ａが挿通孔７に圧嵌されている
ため、ケーシング６に電線１が確実に支持され、
その支持が強固である。このため、風圧によつて
電線１が振動しても角棒型端子１０と端子接続部
９との接続部にその振動が伝わらず、従来のごと
く、繰り返し応力による角棒型端子１０の折損の
危惧もなく、また抜け出ることもない。 Furthermore, since the stepped portion 12a is press-fitted into the insertion hole 7, the electric wire 1 is reliably supported by the casing 6.
Its support is strong. Therefore, even if the electric wire 1 vibrates due to wind pressure, the vibration is not transmitted to the connection between the square bar terminal 10 and the terminal connection part 9, and as in the past, the square bar terminal 10 is prevented from breaking due to repeated stress. There is no danger, and there is no escape.

〔考案の効果〕[Effect of idea]

本考案は、以上のように構成したので、電線が
配電機器、例えばカツトアウトのケーシングに確
実に支持されるとともに、カツトアウト等の端子
接続部に導体（角棒型端子）も確実に締着される
ため、風圧による振動等による断線や接続部から
の導体の抜けがなくなり、接続部信頼性の向上を
図り得るものである。 Since the present invention is configured as described above, the electric wire is reliably supported by the power distribution equipment, for example, the casing of the cutout, and the conductor (square bar type terminal) is also securely fastened to the terminal connection part of the cutout etc. Therefore, there is no possibility of wire breakage or disconnection of the conductor from the connection due to vibrations caused by wind pressure, etc., and the reliability of the connection can be improved.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図ａは本考案の接続構造の一実施例の要部
断面図、同図ｂは同図ａのＸ−Ｘ線断面図、第２
図は第１図の電線接続部であり、同図ａは拡大正
面図、同図ｂは同断面図、同図ｃは左切断側面
図、第３図は柱上配電概略図、第４図ａ，ｂは高
圧カツトアウトの正面図及び平面図、第５図ａは
従来の接続構造の要部断面図、同図ｂは同図ａの
Ｂ−Ｂ線断面図である。 １……電線、２……変圧器、３……高圧カツト
アウト、４……絶縁被覆、５……導体、６……ケ
ーシング、７……電線挿通孔、９……端子接続
部、９′……ねじ、１０……角棒型端子、１２…
…絶縁補強部。 Fig. 1a is a cross-sectional view of a main part of an embodiment of the connection structure of the present invention, Fig. 1b is a cross-sectional view taken along the line X-X of Fig. 1a, and Fig.
The figures show the wire connection section in Figure 1, with Figure a being an enlarged front view, Figure b being a sectional view, Figure c being a left cut side view, Figure 3 being a schematic diagram of power distribution on a pole, and Figure 4 being a schematic diagram of power distribution on a pole. 5A and 5B are a front view and a plan view of a high-voltage cutout, FIG. 5A is a sectional view of a main part of a conventional connection structure, and FIG. DESCRIPTION OF SYMBOLS 1...Electric wire, 2...Transformer, 3...High voltage cutout, 4...Insulation coating, 5...Conductor, 6...Casing, 7...Wire insertion hole, 9...Terminal connection part, 9'... ...Screw, 10...Square bar type terminal, 12...
...Insulation reinforcement part.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 電線１の導体５に角棒型端子１０を接続し、そ
の接続部上の角棒型端子１０と電線１の絶縁体４
とに亘つて、段付部、絶縁部および振動屈曲緩和
部とからなる絶縁補強部１２を充実状態に設け、
柱上配電機器２の円筒状電線挿入孔７に絶縁補強
部１２の段付部を圧嵌するとともに、柱上配電機
器２の端子接続部９の丸孔９ａに角棒型端子１０
を挿入し、その端子接続部９に、前記丸孔９ａの
半径方向にねじ９′をねじ込んでその先端を角棒
型端子１０側面に押圧し、角棒型端子１０を端子
接続部９に圧着して電気的に接続したことを特徴
とする柱上配電機器と電線との接続構造。 A square bar type terminal 10 is connected to the conductor 5 of the electric wire 1, and the square bar type terminal 10 on the connection part and the insulator 4 of the electric wire 1 are connected.
In addition, the insulation reinforcing portion 12 consisting of a stepped portion, an insulating portion, and a vibration bending relaxation portion is provided in a complete state,
The stepped part of the insulation reinforcing part 12 is press-fitted into the cylindrical wire insertion hole 7 of the pole-mounted power distribution equipment 2, and the square rod-shaped terminal 10 is inserted into the round hole 9a of the terminal connection part 9 of the pole-mounted power distribution equipment 2.
Insert the screw 9' into the terminal connection part 9 in the radial direction of the round hole 9a, press the tip of the screw against the side surface of the square bar terminal 10, and crimp the square bar terminal 10 to the terminal connection part 9. A connection structure between pole-mounted power distribution equipment and electric wires, characterized in that they are electrically connected to each other.