JP2001025120A - Heat generation detector for electric wire crimping pipe - Google Patents
Heat generation detector for electric wire crimping pipeInfo
- Publication number
- JP2001025120A JP2001025120A JP18824599A JP18824599A JP2001025120A JP 2001025120 A JP2001025120 A JP 2001025120A JP 18824599 A JP18824599 A JP 18824599A JP 18824599 A JP18824599 A JP 18824599A JP 2001025120 A JP2001025120 A JP 2001025120A
- Authority
- JP
- Japan
- Prior art keywords
- electric wire
- sensor
- collar
- shape memory
- memory alloy
- 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.)
- Granted
Links
Landscapes
- Electric Cable Installation (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は圧着により挿入電線
を引止める圧着管に於いて、通電時の異常発熱を検知可
能とした装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crimp tube for holding an inserted electric wire by crimping, and to a device capable of detecting abnormal heat generation during energization.
【０００２】[0002]
【従来の技術】圧着箇所の通電による異常発熱検知のた
め、形状記憶合金を利用することは、特許第２７０８０
７６（以下引例１と略称）及び特願平９−１３９２８６
（以下引例２と略称）によって公知である。引例１は両
側から電線を挿入圧着した接続管に於いて、この接続管
が異常発熱したとき所定形状へと変化する形状記憶合金
製熱センサ体を、接続管表面で軸線方向に配置し、その
中央部を帯金によって接続管へ締付けたものである。引
例２は分岐線接続箇所の異常発熱検知のため、同様のセ
ンサを利用したものであるが、発明者は明細書中で供試
品内部が高温であっても表層は必ずしもそうでないこ
と、及び分岐線引出方向端部が特に高温となることを指
摘する。引例１の効果に疑問を示す指摘である。引例２
はこの点に鑑み、本線と分岐線の中間で金具にセンサ孔
を穿ったことを特徴としている。2. Description of the Related Art Utilizing a shape memory alloy for detecting abnormal heat generation due to energization of a crimping portion is disclosed in Japanese Patent No. 27080
76 (hereinafter abbreviated as Reference 1) and Japanese Patent Application No. 9-139286.
(Hereinafter referred to as Reference 2). Reference 1 relates to a connection pipe in which electric wires are inserted and crimped from both sides, and a heat sensor body made of a shape memory alloy, which changes to a predetermined shape when the connection pipe generates abnormal heat, is arranged in the axial direction on the connection pipe surface. The central part is fastened to the connecting pipe with a band. Reference 2 uses a similar sensor to detect abnormal heat generation at the branch line connection point. However, the inventor has stated that even if the inside of the specimen is high in the specification, the surface layer is not necessarily so, and It is pointed out that the end of the branch line drawing direction becomes particularly hot. It is an indication that questions the effect of Reference 1. Reference 2
In view of this point, a sensor hole is formed in the metal fitting between the main line and the branch line.
【０００３】[0003]
【発明が解決しようとする課題】上記の手段は円筒体へ
電線を挿入圧着するだけの直線スリーブに対しては形状
が全く異なるため適用不能である。この場合どの箇所を
えらび、どのような手段でセンサ取付をするかが新たな
課題として解決をせまられることとなった。またセンサ
と電線間における異種金属による電蝕が生じる。これら
が解決しようとする課題である。The above-mentioned means cannot be applied to a linear sleeve which merely inserts and crimps an electric wire into a cylindrical body because the shape is completely different. In this case, a new problem is to be solved as to which part is to be selected and how to mount the sensor. Further, electrolytic corrosion due to dissimilar metals occurs between the sensor and the electric wire. These are the problems to be solved.
【０００４】[0004]
【課題を解決するための手段】電線を挿入するアルミ管
体の開口端附近の内径を切除し、ここへこの切除を充填
可能なサイズのアルミカラーを挿入する。カラーの表面
へは予め短冊状のセンサを、適当長さ露出させて、添着
しておく。電線挿入後全体を圧着する。センサはアルミ
管とアルミカラーにはさまれ、しかも管体の開口端附近
で圧着されるので、先に引例２で述べた２条件を満たす
ことになり、スリーブの内部温度に的確に反応する。形
状記憶合金製短冊状体（センサ）に対し、その前面に樹
脂系塗料のウレタン塗料を塗布し、そのセンサ取付基部
及び電線との対向面にタールエポキシ塗料を施して電蝕
を防止する。Means for Solving the Problems An inner diameter near an open end of an aluminum pipe into which an electric wire is inserted is cut out, and an aluminum collar having a size capable of filling the cut is inserted into the cut inside. A strip sensor is attached to the surface of the collar in advance by exposing it to an appropriate length. After inserting the wires, crimp the whole. Since the sensor is sandwiched between the aluminum tube and the aluminum collar and is crimped near the open end of the tube, the two conditions described in the reference 2 are satisfied, and the sensor responds accurately to the internal temperature of the sleeve. A resin-based urethane paint is applied to the front surface of the shape memory alloy strip (sensor), and a tar epoxy paint is applied to the sensor mounting base and the surface facing the electric wires to prevent electrolytic corrosion.
【０００５】[0005]
【実施例】直線スリーブＳとジャンパスリーブＪとを一
体にした引止金具に例をとり、図面について説明する。
直線スリーブＳには本線Ｅ１を、ジャンパスリーブＪに
はジャンパ線Ｅ２を夫々挿入圧着する。直線スリーブＳ
の場合は図２の如く、開口端附近内径を切除して段付大
径部１を形成しておく。カラー２は上記切除部へ挿入充
填可能なサイズとし、外径の一部を軸線方向のセンサ接
着座とする。センサ３は形状記憶合金製短冊状で、適当
長さの露出部を残して、上記接着座へ接着する。仮止め
であるから接着剤は選ばない。センサ付カラーは大径部
１へ収納した後、電線Ｅ１を挿入して圧着する。図５は
樹脂系塗料の塗布したセンサを施した引留クランプの正
面図である。センサと電線との隙間には雨水等が溜まり
やすく、これに通電してアルミ製の電線ＥとＮi−Ｔｉ
材製のセンサ３とが短絡すると、電線Ｅが異種金属間の
電位差によって腐食する。特にセンサ取付基部４及び電
線との対向面５は電蝕しやすい。これを防ぐために、セ
ンサの前面に彩色のウレタン塗料６を塗布し、取付基部
４及び電線Ｅ１との対向面５に耐候性の優れたタールエ
ポキシ塗料７を施す。これにより、彩色のウレタン塗料
面は外側に向き、遠くからでも検知可能である。また特
に電蝕しやすい箇所はタールエポキシ塗料を塗布してい
るので剥離する事がない。ジャンパスリーブＪの場合も
以上と全く同一の手段で差支えないことは自明である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The drawing will be described with reference to an example of a stopper fitting in which a straight sleeve S and a jumper sleeve J are integrated.
The main line E1 is inserted into the straight sleeve S, and the jumper line E2 is inserted and crimped into the jumper sleeve J. Straight sleeve S
In this case, as shown in FIG. 2, the inner diameter near the open end is cut off to form a stepped large diameter portion 1. The collar 2 is of a size that can be inserted and filled into the cutout, and a part of the outer diameter is used as an axial sensor attachment seat. The sensor 3 has a strip shape made of a shape memory alloy, and is adhered to the adhesive seat except for an exposed portion having an appropriate length. Adhesive is not selected because it is a temporary fixing. After storing the collar with the sensor in the large-diameter portion 1, the electric wire E1 is inserted and crimped. FIG. 5 is a front view of a retaining clamp provided with a sensor coated with a resin-based paint. Rainwater or the like easily accumulates in the gap between the sensor and the electric wire.
When the material sensor 3 is short-circuited, the electric wire E is corroded by a potential difference between dissimilar metals. In particular, the sensor mounting base 4 and the surface 5 facing the electric wire are easily eroded. To prevent this, a colored urethane coating 6 is applied to the front surface of the sensor, and a tar epoxy coating 7 having excellent weather resistance is applied to the mounting base 4 and the surface 5 facing the electric wire E1. Thus, the colored urethane paint surface faces outward and can be detected from a distance. In addition, a portion which is particularly susceptible to electrolytic corrosion is not peeled off because the tar epoxy paint is applied. It is obvious that the jumper sleeve J can be used with exactly the same means as described above.
【０００６】[0006]
【発明の効果】管体の開口端附近の内径を切除し、この
切除部に充填可能なサイズのカラーを挿入するだけの作
業であるから、実施が容易で、しかも過熱検知が的確に
行なえる。センサ全面に樹脂系塗料を塗布するので、電
蝕を防ぐことができる。ウレタン塗料とタールエポキシ
塗料の２種類の樹脂系塗料を使用し、特に電蝕しやすい
箇所と検知の目視性を考慮しているので、耐久性に優
れ、状態検知が容易である。According to the present invention, it is only necessary to cut off the inner diameter near the open end of the tube, and insert a fillable size collar into the cutout, so that the operation is easy and the overheat can be detected accurately. . Since a resin-based paint is applied to the entire surface of the sensor, electric corrosion can be prevented. Since two types of resin paints, urethane paint and tar epoxy paint, are used, and particularly considering the location which is easily corroded and the visibility of detection, the durability is excellent and the state detection is easy.
【図１】引止金具の正面図である。FIG. 1 is a front view of a stopper.
【図２】直線スリーブの開口端附近正面図である。FIG. 2 is a front view near an open end of a straight sleeve.
【図３】カラーの正面図である。FIG. 3 is a front view of a collar.
【図４】カラーの側面図である。FIG. 4 is a side view of the collar.
【図５】樹脂系塗料センサを施した電線圧着管の正面図
である。FIG. 5 is a front view of an electric wire crimp tube provided with a resin-based paint sensor.
Ｓ 直線スリーブ Ｊ ジャンパスリーブ Ｅ１ 本線 Ｅ２ ジャンパ線 １ 大径部 ２ カラー ３ 形状記憶合金製短册状体（センサ） ４ ウレタン塗料 ５ タールエポキシ塗料 S Straight sleeve J Jumper sleeve E1 Main line E2 Jumper wire 1 Large diameter part 2 Color 3 Shape memory alloy strip (sensor) 4 Urethane paint 5 Tar epoxy paint
───────────────────────────────────────────────────── フロントページの続き (72)発明者 関 孝男 東京都渋谷区代々木二丁目二番二号 東日 本旅客鉄道株式会社内 (72)発明者 檜垣 貴規 東京都品川区南品川６丁目５番19号 三和 テッキ株式会社内 (72)発明者 田島 浩 東京都品川区南品川６丁目５番19号 三和 テッキ株式会社内 Ｆターム(参考） 5G367 DA01 DB13 DB15 DC03 ──────────────────────────────────────────────────続 き Continued on the front page (72) Takao Seki Inventor 2-2-2, Yoyogi, Shibuya-ku, Tokyo East Japan Railway Company (72) Inventor Takanori Higaki 6-5 Minamishinagawa, Shinagawa-ku, Tokyo No. 19 Sanwa Tekki Co., Ltd. (72) Inventor Hiroshi Tajima 6-5-19 Minamishinagawa, Shinagawa-ku, Tokyo F-term in Sanwa Tekki Co., Ltd. 5G367 DA01 DB13 DB15 DC03
Claims (2)
て開口端附近内径を切除して段付大径孔としたものに於
いて、表面に形状記憶合金製短冊状体が軸線方向に添着
されたカラーを上記切除部へ挿入充填して成り、電線を
挿入圧着後の通電で短冊状体の露出部が所定高温で検知
可能に変形するよう設定したことを特徴とする電線圧着
管の発熱検知装置。1. A tubular body having an insertion hole for an electric wire at one end and having a stepped large-diameter hole with an inner diameter cut off near an open end, wherein a strip-shaped body made of a shape memory alloy has an axial direction. An electric wire crimping tube characterized in that a collar attached to the cut portion is inserted and filled into the cut portion, and the exposed portion of the strip is deformed so as to be detectable at a predetermined high temperature by applying electricity after inserting and crimping the electric wire. Heat generation detection device.
ン塗料を施し，その取付基部及び電線との対向面にター
ルエポキシ塗料を施したことを特徴とする前記請求項１
に記載の電線圧着管の発熱検知装置。2. The shape memory alloy strip according to claim 1, wherein a urethane coating is applied to the front surface, and a tar epoxy coating is applied to the mounting base and the surface facing the electric wire.
4. A heat generation detecting device for an electric wire crimp tube according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18824599A JP4028662B2 (en) | 1999-07-01 | 1999-07-01 | Heat generation detector for wire crimping tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18824599A JP4028662B2 (en) | 1999-07-01 | 1999-07-01 | Heat generation detector for wire crimping tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001025120A true JP2001025120A (en) | 2001-01-26 |
| JP4028662B2 JP4028662B2 (en) | 2007-12-26 |
Family
ID=16220335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18824599A Expired - Lifetime JP4028662B2 (en) | 1999-07-01 | 1999-07-01 | Heat generation detector for wire crimping tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4028662B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2853462A1 (en) * | 2003-04-04 | 2004-10-08 | Electricite De France | Surveillance device for connection sleeve of high-voltage overhead line, has detection unit to detect temperature rise in sleeve, for provoking defect indication unit to indicate defect, and clips to mount device on sleeve |
| WO2011089544A3 (en) * | 2010-01-20 | 2011-12-29 | Brian Katz | A thermochromic flashover or overload indicator for overhead transmission lines |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5294680B2 (en) * | 2007-05-23 | 2013-09-18 | キヤノン株式会社 | Sheet processing apparatus and image forming apparatus |
-
1999
- 1999-07-01 JP JP18824599A patent/JP4028662B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2853462A1 (en) * | 2003-04-04 | 2004-10-08 | Electricite De France | Surveillance device for connection sleeve of high-voltage overhead line, has detection unit to detect temperature rise in sleeve, for provoking defect indication unit to indicate defect, and clips to mount device on sleeve |
| WO2011089544A3 (en) * | 2010-01-20 | 2011-12-29 | Brian Katz | A thermochromic flashover or overload indicator for overhead transmission lines |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4028662B2 (en) | 2007-12-26 |
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