JPH0869824A - Crimping sleeve for connecting lead wire - Google Patents

Crimping sleeve for connecting lead wire

Info

Publication number
JPH0869824A
JPH0869824A JP22722494A JP22722494A JPH0869824A JP H0869824 A JPH0869824 A JP H0869824A JP 22722494 A JP22722494 A JP 22722494A JP 22722494 A JP22722494 A JP 22722494A JP H0869824 A JPH0869824 A JP H0869824A
Authority
JP
Japan
Prior art keywords
fitting hole
rainwater
lead wire
compression sleeve
tip
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.)
Pending
Application number
JP22722494A
Other languages
Japanese (ja)
Inventor
Toyoji Nishi
豊治 西
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TOKO DENKI KK
Takaoka Toko Co Ltd
Original Assignee
TOKO DENKI KK
Toko Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TOKO DENKI KK, Toko Electric Corp filed Critical TOKO DENKI KK
Priority to JP22722494A priority Critical patent/JPH0869824A/en
Publication of JPH0869824A publication Critical patent/JPH0869824A/en
Pending legal-status Critical Current

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  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Abstract

PURPOSE: To prevent falling-off of a lead wire caused by freezing of rainwater in a cold district. CONSTITUTION: Radial directional plural drain holes 21 and 22 are formed from the main body outside positioned in a tip part of a fitting hole 16 of a crimping sleeve 14. Therefore, when a conductor 18 of a lead wire 17 is inserted in the fitting hole 16 and is compressively fixed, a clearance 23 is formed on the tip of the fitting hole 16. Even if rainwater infiltrates inside of the conductor 18 by a capillary phenomenon and oozes out to the clearance 23, the rainwater is drained outside of the crimping sleeve 14 from the drain holes 21 and 22. As a result, the rainwater remaining in the clearance 23 on the tip of the fitting hole 16 is reduced, and even if it freezes and is cubically expanded, the conductor 18 is not pushed out when the clearance 23 is filled up.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、高圧開閉器のブッシン
グ等に用いられる口出線接続用の圧縮スリーブに係り、
口出線側から嵌合穴に浸入した雨水を容易に排出して、
雨水凍結による破損を防止することができる口出線接続
用圧着スリーブに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compression sleeve for connecting a lead wire used in a bushing of a high-voltage switch or the like,
Rainwater that has entered the fitting hole from the outlet side can be easily discharged,
The present invention relates to a pressure-bonding sleeve for connecting a lead wire, which can prevent damage due to freezing of rainwater.

【0002】[0002]

【従来の技術】従来、高圧開閉器のブッシングでは、圧
縮スリーブにより口出線の心線を接続しており、圧縮ス
リーブに心線を挿入して圧縮・固定した場合、圧縮スリ
ーブの嵌合穴の先端と心線の先端との間には、若干の隙
間が残ってしまう。そのため、高圧開閉器が屋外でしか
も寒冷地に設置された場合は、口出線の心線の内部を雨
水が毛管現象により浸透して嵌合穴の奥に形成された隙
間に溜まってしまうことがある。その場合、夜間、外気
が冷えて氷点下になると、溜まった雨水が凍結して体積
膨張する。また、翌日の日中になると溶解し、さらに、
夜間になると再び凍結する。このように凍結と溶解を繰
り返すことにより、そのつど心線を嵌合穴から外へ押し
出そうとする力が働く。その結果、口出線がブッシング
から外れて抜け落ちてしまい、配電系統の事故になると
いうことがあった。
2. Description of the Related Art Conventionally, in a bushing of a high-voltage switch, the core wire of the lead wire is connected by a compression sleeve, and when the core wire is inserted into the compression sleeve and compressed / fixed, the fitting hole of the compression sleeve. A small gap remains between the tip of the cord and the tip of the core wire. Therefore, when the high-voltage switch is installed outdoors and in a cold area, rainwater may penetrate inside the core wire of the outlet wire due to the capillary phenomenon and collect in the gap formed inside the fitting hole. There is. In that case, when the outside air cools and becomes below freezing at night, the accumulated rainwater freezes and expands in volume. Also, the next day during the day it will dissolve,
It freezes again at night. By repeating freezing and thawing in this way, a force acts to push the core wire out of the fitting hole each time. As a result, the lead wire came off the bushing and fell off, resulting in a power distribution system accident.

【0003】その対策として、寒冷地の屋外に設置され
る高圧開閉器のブッシングには、図5に示すような圧縮
スリーブを用いてブッシングを構成していた。すなわ
ち、圧縮スリーブ1の左端に形成された嵌合穴2の先端
に、充填材として未加硫ゴム3を充填してから、口出線
4の心線5を挿入する。次いで、挿入した圧縮スリーブ
1の外周を圧縮して口出線4を圧縮スリーブ1に固定
し、さらに、圧縮スリーブ1の外周にゴムモールドによ
りストレスコーン6を形成する。このとき、嵌合穴2の
先端の未加硫ゴム3も加熱されて膨張し、嵌合穴2の奥
の隙間に充満し雨水が嵌合穴2の奥に浸入することがな
くなる。なお、図中の7は、導体接続用のめねじ部であ
る。
As a countermeasure against this, a compression sleeve as shown in FIG. 5 is used for the bushing of a high-voltage switch installed outdoors in a cold region. That is, the core 5 of the lead wire 4 is inserted after the unvulcanized rubber 3 is filled as a filler at the tip of the fitting hole 2 formed at the left end of the compression sleeve 1. Next, the outer circumference of the inserted compression sleeve 1 is compressed to fix the lead wire 4 to the compression sleeve 1, and a stress cone 6 is formed on the outer circumference of the compression sleeve 1 by rubber molding. At this time, the unvulcanized rubber 3 at the tip of the fitting hole 2 is also heated and expanded, filling the gap in the back of the fitting hole 2 and preventing rainwater from entering the back of the fitting hole 2. In addition, 7 in the figure is a female thread portion for connecting a conductor.

【0004】この方法は、雨水凍結により口出線4が脱
落することを完全に防止できるもののストレスコーン6
を形成する工程が余分に必要であり、その分コストアッ
プとなり、重汚染地区に設置される機器等の限定された
用途にしか用いられていない。そこで、ストレスコーン
を形成することなく安価に口出線の脱落を防止しようと
して、圧縮スリーブ1の外周側から内部の隙間が形成さ
れる嵌合穴2の先端部に透孔を開けておき、心線5が圧
縮スリーブ1に圧着・固定された後、この透孔から樹脂
を注入させて内部で硬化させることにより、隙間を塞ぐ
という方法が取られている。
Although this method can completely prevent the lead wire 4 from falling off due to freezing of rainwater, the stress cone 6
An additional process for forming the is necessary, which increases the cost by that amount and is used only for limited applications such as equipment installed in a heavily contaminated area. Therefore, in order to inexpensively prevent the lead wire from falling off without forming a stress cone, a through hole is opened at the tip of the fitting hole 2 where an internal gap is formed from the outer peripheral side of the compression sleeve 1, After the core wire 5 is pressure-bonded and fixed to the compression sleeve 1, a resin is injected from the through hole and cured inside to close the gap.

【0005】[0005]

【発明が解決しようとする課題】しかしながら、この方
法では、樹脂が隙間内にくまなく注入されるとは限ら
ず、しかもそれを外部から検査することもできないた
め、常に圧縮スリーブから完全に隙間を除くことができ
ないという問題があった。本発明は上記問題点を解決す
るためになされたもので、その目的とするところは、安
価でしかも完全に口出線の脱落を防止することができる
口出線接続用圧縮スリーブを提供することにある。
However, in this method, the resin is not always injected into the gap, and it cannot be inspected from the outside. Therefore, the gap is always completely removed from the compression sleeve. There was a problem that it could not be removed. The present invention has been made to solve the above problems, and an object thereof is to provide a compression sleeve for connecting a lead wire that is inexpensive and can completely prevent the lead wire from falling off. It is in.

【0006】[0006]

【課題を解決するための手段】上記目的を達成するため
に、本発明は、端部軸方向に形成された嵌合穴に口出線
の心線を挿入してから外側を圧縮して心線を固定する口
出線接続用圧縮スリーブにおいて、嵌合穴の先端部と本
体外側とを連通する複数の排水孔を形成したことを特徴
とする。
In order to achieve the above-mentioned object, the present invention inserts a core wire of a lead wire into a fitting hole formed in the axial direction of the end portion, and then compresses the outside of the core wire. In a compression sleeve for connecting a lead wire for fixing a wire, a plurality of drainage holes that connect the tip of the fitting hole and the outside of the main body are formed.

【0007】[0007]

【作用】本発明においては、圧縮スリーブの嵌合穴の先
端部と本体外側とを連通する複数の排水孔が形成され
る。それにより、口出線の心線が嵌合穴に挿入されて圧
縮固定されたとき嵌合穴の先端に隙間が形成され、雨水
が心線の内部を毛細管現象により浸透して隙間にしみ出
してきても、雨水は排水孔を経て圧縮スリーブ外部に排
出される。その結果、嵌合穴先端の隙間に残る雨水は少
量となり、溜まった雨水が凍結して体積膨張してもその
膨張量はわずかであるため、心線が押し出されることが
なくなる。
In the present invention, a plurality of drainage holes are formed to connect the tip of the fitting hole of the compression sleeve and the outside of the main body. As a result, when the core wire of the outlet wire is inserted into the fitting hole and compressed and fixed, a gap is formed at the tip of the fitting hole, and rainwater permeates the inside of the core wire by a capillary phenomenon and exudes into the gap. Even then, the rainwater is discharged to the outside of the compression sleeve through the drain hole. As a result, the amount of rainwater remaining in the gap at the tip of the fitting hole is small, and even if the accumulated rainwater freezes and expands in volume, the expansion amount is small, so the core wire is not pushed out.

【0008】[0008]

【実施例】以下、図に沿って本発明の実施例を説明す
る。図1は本発明の実施例の圧縮スリーブを開閉器のブ
ッシングに取り付けた場合の説明図であり、図2は図1
要部の拡大断面図、図3は図2の横断面図である。図に
おいて、11は高圧開閉器であり、その側面部に碍子1
2が支持されている。碍子12の中心部に支持された導
体13の右端は高圧開閉器11の内部に接続され、左端
は圧縮スリーブ14のねじ穴15と接続されている。ま
た、圧縮スリーブ14の左端には、軸方向に嵌合穴16
が形成されており、その内部に口出線17の心線18が
挿入されて圧縮固定されている。
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory view when a compression sleeve according to an embodiment of the present invention is attached to a switch bushing, and FIG.
FIG. 3 is an enlarged cross-sectional view of a main part, and FIG. 3 is a cross-sectional view of FIG. In the figure, 11 is a high-voltage switch, and the insulator 1 is provided on the side surface thereof.
2 are supported. The right end of the conductor 13 supported at the center of the insulator 12 is connected to the inside of the high-voltage switch 11, and the left end thereof is connected to the screw hole 15 of the compression sleeve 14. The left end of the compression sleeve 14 has a fitting hole 16 in the axial direction.
Is formed, and the core wire 18 of the lead wire 17 is inserted and compressed and fixed therein.

【0009】圧縮スリーブ14の外側を覆う碍子12の
ボス部19と口出線17との間は絶縁カバー20により
被覆されている。また、圧縮スリーブ14には、嵌合穴
16の先端の位置に外側から半径方向に1対の排水孔2
1,22が形成されているため、心線18の先端と嵌合
穴16の先端との間に隙間23が形成されても、隙間2
3は排水孔21,22を介して圧縮スリーブ14の外側
と連通することになる。それにより、口出線17の心線
18の内部を雨水が毛細管現象により浸透して、嵌合穴
16の奥に形成された隙間23にしみ出して溜まろうと
するが、排水孔21,22より排出され、さらに、圧縮
スリーブ14と絶縁カバー20との間を経て外部へ流出
する。
An insulating cover 20 covers between the boss portion 19 of the insulator 12 covering the outside of the compression sleeve 14 and the lead wire 17. In addition, the compression sleeve 14 has a pair of drain holes 2 radially from the outside at the position of the tip of the fitting hole 16.
Since the first and second parts 22 are formed, even if the gap 23 is formed between the tip of the core wire 18 and the tip of the fitting hole 16, the gap 2 is formed.
3 communicates with the outside of the compression sleeve 14 via the drain holes 21 and 22. As a result, rainwater permeates the inside of the core wire 18 of the outlet wire 17 by a capillary phenomenon and oozes out into the gap 23 formed in the inner part of the fitting hole 16 to collect, but from the drain holes 21 and 22. It is discharged, and further flows out through the space between the compression sleeve 14 and the insulating cover 20.

【0010】そのため、隙間23には雨水が溜まっても
わずかであり、冬季に外気が氷点下になって雨水が凍結
する場合も、凍結して膨張する量はわずかであり、凍結
のために心線18が嵌合穴16から押し出されることが
なくなる。なお、図2、図3では、排水孔21,22が
垂直方向に配置された場合を示しており、この場合は、
雨水が隙間23に溜まることなくほぼ完全に排出され
る。また、図4は、図3に示した排水孔21,22を9
0度回転して水平方向に配置された場合を示し、この場
合は、隙間23内に雨水Wが残るものの水面の位置は中
心よりも下方となり、雨水Wが凍結してもその膨張量は
充分に無視できる範囲内である。
Therefore, even if rainwater accumulates in the gap 23, even if the outside air becomes below freezing and the rainwater freezes in the winter, the amount of freezing and expanding is also small, and the core wire for freezing. 18 is not pushed out from the fitting hole 16. 2 and 3 show the case where the drain holes 21 and 22 are arranged in the vertical direction. In this case,
The rainwater is almost completely discharged without collecting in the gap 23. Further, FIG. 4 shows the drain holes 21 and 22 shown in FIG.
The figure shows a case in which the rainwater W is rotated by 0 ° and arranged in the horizontal direction. In this case, although the rainwater W remains in the gap 23, the position of the water surface is below the center, and even if the rainwater W freezes, its expansion amount is sufficient. It is within the range that can be ignored.

【0011】このように実施例では、圧縮スリーブ14
の嵌合穴16の奥に形成される隙間23に、ゴム等を充
填することなく、単に排水孔21,22を圧縮スリーブ
14に形成しておくだけで、浸透する雨水を確実に排出
して、口出線17が脱落する凍結事故を防止することが
できる。なお、実施例では、排水孔を2個形成したが、
円周上に3個以上の排水孔を均等に配設することも可能
である。また、このように構成された圧縮スリーブは、
高圧開閉器のブッシング以外にも、屋外に設置される一
般高圧配電機器のブッシング部に適用することができ
る。
As described above, in the embodiment, the compression sleeve 14 is used.
The gap 23 formed in the inner part of the fitting hole 16 is not filled with rubber or the like, and the drain holes 21 and 22 are simply formed in the compression sleeve 14 to reliably discharge the permeating rainwater. It is possible to prevent a freezing accident in which the lead wire 17 falls off. Although two drain holes are formed in the embodiment,
It is also possible to evenly arrange three or more drain holes on the circumference. In addition, the compression sleeve configured in this way,
Besides the bushing of the high-voltage switch, it can be applied to the bushing portion of general high-voltage power distribution equipment installed outdoors.

【0012】[0012]

【発明の効果】以上述べたように本発明によれば、圧縮
スリーブの嵌合穴の先端部と本体外側とを連通する複数
の排水孔を形成したことで、嵌合穴先端の隙間に溜まる
雨水は少量となり、凍結による心線への影響はほとんど
解消される。その結果、圧縮スリーブの外側にストレス
コーンを形成することなく、安価なブッシング部の構成
で口出線の脱落を防止することができる。
As described above, according to the present invention, a plurality of drain holes which connect the tip of the fitting hole of the compression sleeve and the outside of the main body are formed, so that they are collected in the gap at the tip of the fitting hole. The amount of rainwater is small, and the effect of freezing on the core wire is almost eliminated. As a result, it is possible to prevent the lead wire from falling off with a cheap bushing structure without forming a stress cone on the outside of the compression sleeve.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明に係る実施例の圧縮スリーブの取り付け
例を示す説明図である。
FIG. 1 is an explanatory view showing an example of attachment of a compression sleeve of an embodiment according to the present invention.

【図2】図1要部の拡大断面図である。FIG. 2 is an enlarged cross-sectional view of a main part of FIG.

【図3】図2の横断面図である。3 is a cross-sectional view of FIG.

【図4】図2の実施例で排水孔の位置が変わった場合を
示す横断面図である。
FIG. 4 is a cross-sectional view showing a case where the positions of drain holes are changed in the embodiment of FIG.

【図5】従来例を示す説明図である。FIG. 5 is an explanatory diagram showing a conventional example.

【符号の説明】[Explanation of symbols]

11 高圧開閉器 12 碍子 13 導体 14 圧縮スリーブ 15 ねじ穴 16 嵌合穴 17 口出線 18 心線 19 ボス部 20 絶縁カバー 21,22 排水孔 23 隙間 11 High-voltage switch 12 Insulator 13 Conductor 14 Compression sleeve 15 Screw hole 16 Fitting hole 17 Exit wire 18 Core wire 19 Boss portion 20 Insulation cover 21, 22 Drain hole 23 Gap

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 端部軸方向に形成された嵌合穴に口出線
の心線を挿入してから外側を圧縮して心線を固定する口
出線接続用圧縮スリーブにおいて、嵌合穴の先端部と本
体外側とを連通する複数の排水孔を形成したことを特徴
とする口出線接続用圧縮スリーブ。
1. A compression sleeve for connecting a lead wire, comprising: inserting a core wire of a lead wire into a fitting hole formed in an axial direction of an end portion and then compressing the core wire to fix the core wire. A compression sleeve for connecting a lead wire, wherein a plurality of drainage holes are formed to connect the tip end of the and the outside of the main body.
JP22722494A 1994-08-29 1994-08-29 Crimping sleeve for connecting lead wire Pending JPH0869824A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22722494A JPH0869824A (en) 1994-08-29 1994-08-29 Crimping sleeve for connecting lead wire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22722494A JPH0869824A (en) 1994-08-29 1994-08-29 Crimping sleeve for connecting lead wire

Publications (1)

Publication Number Publication Date
JPH0869824A true JPH0869824A (en) 1996-03-12

Family

ID=16857450

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22722494A Pending JPH0869824A (en) 1994-08-29 1994-08-29 Crimping sleeve for connecting lead wire

Country Status (1)

Country Link
JP (1) JPH0869824A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110323588A (en) * 2018-03-30 2019-10-11 矢崎总业株式会社 Discharge structure, terminal block and car-mounted device
CN112172030A (en) * 2020-07-22 2021-01-05 中铁第一勘察设计院集团有限公司 Wire outlet sleeve mold, wire outlet sleeve and processing method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110323588A (en) * 2018-03-30 2019-10-11 矢崎总业株式会社 Discharge structure, terminal block and car-mounted device
CN112172030A (en) * 2020-07-22 2021-01-05 中铁第一勘察设计院集团有限公司 Wire outlet sleeve mold, wire outlet sleeve and processing method thereof
CN112172030B (en) * 2020-07-22 2023-03-17 中铁第一勘察设计院集团有限公司 Wire outlet sleeve mold, wire outlet sleeve and processing method thereof

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