JP3369596B2 - Lead wire unit - Google Patents
Lead wire unitInfo
- Publication number
- JP3369596B2 JP3369596B2 JP19348092A JP19348092A JP3369596B2 JP 3369596 B2 JP3369596 B2 JP 3369596B2 JP 19348092 A JP19348092 A JP 19348092A JP 19348092 A JP19348092 A JP 19348092A JP 3369596 B2 JP3369596 B2 JP 3369596B2
- Authority
- JP
- Japan
- Prior art keywords
- lead wire
- seal member
- wire unit
- heat
- heat resistant
- 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.)
- Ceased
Links
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical group [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 title claims description 45
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 229920005989 resin Polymers 0.000 description 9
- 239000011347 resin Substances 0.000 description 9
- 229920006015 heat resistant resin Polymers 0.000 description 8
- 238000012856 packing Methods 0.000 description 7
- 229920001577 copolymer Polymers 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- -1 polytetrafluoroethylene Polymers 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
- Insulating Bodies (AREA)
- Installation Of Indoor Wiring (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ヒータリード線、セン
サリード線などのリード線を固定、シールするためのシ
ール材（ブッシュ）を端部に有するリード線ユニットに
関するものであり、更に詳しくは、高温下での長期間の
使用に耐えうるシール部材付リード線ユニットに関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lead wire unit having a seal material (bush) for fixing and sealing a lead wire such as a heater lead wire and a sensor lead wire at its end, and more specifically, to a lead wire unit. The present invention relates to a lead wire unit with a seal member that can withstand long-term use at high temperatures.
【０００２】[0002]
【従来の技術】近年、高温下にあり、かつ防水性、気密
性などが要求される個所、例えば自動車の排ガス室など
にリード線を接続固定する場合は、該個所にフッ素樹脂
などの耐熱性樹脂からなるシール部材を固定し、そのシ
ール部材に穿設した導通孔内に、フッ素樹脂などの耐熱
性樹脂で被覆したリード線を挿通して、該シール部材と
該リード線との間を、フッ素ゴム、シリコーンゴムなど
のパッキングでシールするという方法が一般に用いられ
ていた。2. Description of the Related Art In recent years, when a lead wire is connected and fixed to a place which is under high temperature and is required to be waterproof and airtight, for example, an exhaust gas chamber of an automobile, heat resistance such as fluororesin is applied to the place. A seal member made of a resin is fixed, and a lead wire coated with a heat resistant resin such as a fluororesin is inserted into a conduction hole formed in the seal member, and between the seal member and the lead wire, A method of sealing with a packing of fluororubber, silicone rubber or the like has been generally used.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、このよ
うな従来の方法では、高温下で連続的に使用していると
パッキングが熱劣化又は腐蝕して、防水性、気密性が損
なわれることがわかってきた。そのため、パッキングの
交換を頻繁に行わなければならないという問題があっ
た。However, in such a conventional method, it has been found that when continuously used at a high temperature, the packing is thermally deteriorated or corroded, and the waterproofness and airtightness are impaired. Came. Therefore, there is a problem that the packing must be replaced frequently.
【０００４】本発明の目的は、このような従来技術の問
題点を解消し、耐久性のある防水性、気密性を有するリ
ード線ユニットを提供することにある。An object of the present invention is to solve the above problems of the prior art and to provide a lead wire unit having durability, waterproofness and airtightness.
【０００５】[0005]
【課題を解決するための手段】本発明者は、上記目的を
達成するために、種々検討を重ねた結果、パッキングを
使用せず、シール部材とリード線被覆とを直接融着させ
ることを着想し、本発明を完成するに至った。Means for Solving the Problems As a result of various studies in order to achieve the above object, the present inventor has conceived that the sealing member and the lead wire coating are directly fused without using packing. Then, the present invention has been completed.
【０００６】即ち、本発明は、リード線の端部を耐熱性
シール部材に挿通してなるリード線ユニットにおいて、
該耐熱性シール部材の少なくとも一部を加熱圧縮するこ
とにより、該耐熱性シール部材と該リード線の耐熱性絶
縁被覆とを融着させたことを特徴とするリード線ユニッ
トである。That is, the present invention provides a lead wire unit in which the end portion of the lead wire is inserted into the heat resistant seal member,
A lead wire unit, wherein the heat resistant seal member and the heat resistant insulating coating of the lead wire are fused by heating and compressing at least a part of the heat resistant seal member.
【０００７】[0007]
【作用】本発明のリード線ユニットでは、耐熱性シール
部材とリード線の耐熱性絶縁被覆との間にパッキングを
介在させることなく、直接融着させているので、高温下
などの苛酷な条件下で長期間使用しても、パッキングの
熱劣化、腐蝕に起因する問題が発生する余地はまったく
なく、耐久性のある防水性、気密性を有するリード線ユ
ニットが得られる。In the lead wire unit of the present invention, the heat-resistant seal member and the heat-resistant insulating coating of the lead wire are directly fused without the interposition of packing, so that they can be used under severe conditions such as high temperature. Therefore, even if it is used for a long period of time, there is no room for problems due to heat deterioration and corrosion of the packing, and a durable wire unit having waterproofness and airtightness can be obtained.
【０００８】[0008]
【実施例】以下、本発明の実施例を図面に基づいて説明
する。図１は、本発明のリード線ユニットの一例を示す
斜視図であり、耐熱性樹脂からなるシール部材（ブッシ
ュ）１には、その長さ方向に導通孔２が穿設されてお
り、該導通孔２に耐熱性樹脂からなる絶縁被覆を有する
リード線３が挿通されている。該シール部材１の一部１
ａは、加熱圧縮され、図２に断面図で示すように、リー
ド線３の導体３ａを被覆している耐熱性樹脂絶縁被覆３
ｂと融着し、シール部材１とリード線３との間を完全に
シールしている。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an example of a lead wire unit of the present invention. A seal member (bush) 1 made of a heat-resistant resin is provided with a conduction hole 2 in its length direction, and the conduction hole 2 is formed. A lead wire 3 having an insulating coating made of heat resistant resin is inserted into the hole 2. Part 1 of the seal member 1
a is heat-compressed, and as shown in the cross-sectional view in FIG. 2, the heat-resistant resin insulation coating 3 covering the conductor 3a of the lead wire 3.
By fusion bonding with b, the seal member 1 and the lead wire 3 are completely sealed.
【０００９】本発明において、シール部材１は、耐熱性
樹脂で形成されており、通常融点が２００℃以上の耐熱
性樹脂が用いられる。その代表例としては、フッ素樹脂
を挙げることができ、ポリテトラフルオロエチレン、特
に、ポリテトラフルオロエチレンにおいては、変成ＰＴ
ＦＥ、Ｃｏｐｏｌｙｍｅｒ ＴＹＰＥが望ましい。テト
ラフルオロエチレン−ヘキサフルオロプロピレン共重合
体、エチレン−テトラフルオロエチレン共重合体、テト
ラフルオロエチレン−パーフルオロアルキルビニルエー
テル共重合体などが例示される。In the present invention, the seal member 1 is formed of a heat resistant resin, and a heat resistant resin having a melting point of 200 ° C. or higher is usually used. A typical example thereof is a fluororesin, and in polytetrafluoroethylene, particularly polytetrafluoroethylene, modified PT
FE and Copolymer Type are preferable. Examples thereof include a tetrafluoroethylene-hexafluoropropylene copolymer, an ethylene-tetrafluoroethylene copolymer, a tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer and the like.
【００１０】また、リード線３の耐熱性絶縁被覆３ｂに
も、前記シール部材１に用いた耐熱性樹脂と同様の樹脂
を用いることができ、特にフッ素樹脂を用いることが好
ましい。良好な融着状態を得るうえで、シール部材１と
リード線３の絶縁被覆３ｂとは、同じ樹脂を用いるのが
望ましい。The heat-resistant insulating coating 3b of the lead wire 3 can also be made of the same resin as the heat-resistant resin used for the seal member 1, and is preferably a fluororesin. In order to obtain a good fused state, it is desirable that the seal member 1 and the insulating coating 3b of the lead wire 3 use the same resin.
【００１１】本発明のリード線ユニットは、例えば次の
ようにして製造することができる。まず、長さ方向に、
リード線３を挿通するための導通孔２を有する円筒状の
耐熱性樹脂製シール部材１を用意し、該導通孔２内にリ
ード線３を挿通する。この場合、導通孔２は、その内径
がリード線３の外径よりも若干大きくなるように形成し
ておく。The lead wire unit of the present invention can be manufactured, for example, as follows. First, in the length direction,
A cylindrical heat-resistant resin sealing member 1 having a conduction hole 2 for inserting the lead wire 3 is prepared, and the lead wire 3 is inserted into the conduction hole 2. In this case, the conduction hole 2 is formed so that its inner diameter is slightly larger than the outer diameter of the lead wire 3.
【００１２】導通孔２内にリード線３を挿通した状態
で、円筒状シール部材１の一部１ａを金型に入れて加熱
圧縮する。この場合、該円筒状シール部材１の加熱圧縮
部１ａを、金型温度よりも２０〜３０℃低い温度に予熱
しておく。金型温度は、３００〜３７０℃、加圧圧力は
５〜１５Ｋｇ／ｃｍ2 が適当であり、通常、元の体積の
８５〜９５％まで圧縮する。この場合、耐熱性シール部
材の少なくとも一部とリード線の双方を高周波により加
熱（誘電加熱）してもよい。With the lead wire 3 inserted through the conduction hole 2, a part 1a of the cylindrical seal member 1 is put into a mold and heated and compressed. In this case, the heating compression section 1a of the cylindrical seal member 1 is preheated to a temperature 20 to 30 ° C. lower than the mold temperature. Appropriate mold temperature is 300 to 370 ° C. and pressurizing pressure is 5 to 15 Kg / cm 2 , and the pressure is usually 85 to 95% of the original volume. In this case, at least a part of the heat resistant seal member and the lead wire may be heated by high frequency (dielectric heating).
【００１３】次いで、室温まで３〜２０分程度かけて冷
却する。冷却は自然冷却が好ましく、急冷すると歪によ
る成型不良が発生することがある。Then, it is cooled to room temperature for about 3 to 20 minutes. Cooling is preferably natural cooling, and rapid cooling may cause defective molding due to distortion.
【００１４】本発明のリード線ユニットを製造するに際
しては、シール部材１とリード線３の絶縁被覆３ｂとの
間に耐熱性のバインダ樹脂を介在させておくと、融着が
より完全に行われ、融着強度が向上するので好ましい。
バインダ樹脂としては、その融点がシール部材１を構成
する樹脂の融点〜該融点−２０℃であり、シール部材１
を構成する樹脂と同一系統の樹脂、従ってフッ素系の樹
脂が好ましく用いられる。例えば、ポリテトラフルオロ
エチレンをシール部材１及びリード線３の絶縁被覆３ｂ
に使用する場合は、テトラフルオロエチレン−パーフル
オロアルキルビニルエーテル共重合体の粉末を、絶縁被
覆３ｂ表面に付着させるか、あるいはシール部材１の導
通孔２内に入れておく。When manufacturing the lead wire unit of the present invention, if a heat-resistant binder resin is interposed between the seal member 1 and the insulating coating 3b of the lead wire 3, the fusion bonding will be more complete. It is preferable because the fusion strength is improved.
The melting point of the binder resin is from the melting point of the resin forming the seal member 1 to the melting point-20 ° C.
A resin of the same system as the resin constituting the above, that is, a fluorine-based resin is preferably used. For example, polytetrafluoroethylene is used as the insulating member 3b for the seal member 1 and the lead wire 3.
In the case of being used for, the powder of the tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer is attached to the surface of the insulating coating 3b, or put in the through hole 2 of the seal member 1.
【００１５】かくして得られたリード線ユニットは、図
１及び図２に示すように、円筒状シール部材１の一部１
ａが加熱圧縮され、シール部材１とリード線３の絶縁被
覆３ｂとが融着、シールされた構造となる。The lead wire unit thus obtained is, as shown in FIGS. 1 and 2, a part 1 of the cylindrical seal member 1.
When a is heated and compressed, the seal member 1 and the insulating coating 3b of the lead wire 3 are fused and sealed.
【００１６】なお、本発明のリード線ユニットにおい
て、シール部材１の形状リード線の本数などは、図示し
たものに限定されるものではなく、目的に応じて、変更
することができる。In the lead wire unit of the present invention, the shape of the seal member 1 and the number of lead wires are not limited to those shown in the drawings, and can be changed according to the purpose.
【００１７】[0017]
【発明の効果】本発明のリード線ユニットによれば、高
温下（例えば２００℃以上）などの苛酷な条件下で長期
間使用しても、防水性、気密性が損なわれることがな
く、塩害、浸水などを防止することができ、また、パッ
キング交換などの手間もかからない。EFFECTS OF THE INVENTION According to the lead wire unit of the present invention, even if it is used for a long time under severe conditions such as high temperature (for example, 200 ° C. or higher), its waterproofness and airtightness are not impaired and salt damage is caused. In addition, it is possible to prevent water from entering and there is no need to change packing.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明のリード線ユニットの一例を示す斜視図
である。FIG. 1 is a perspective view showing an example of a lead wire unit of the present invention.
【図２】本発明のリード線ユニットのＡ−Ａ線矢視断面
図である。FIG. 2 is a sectional view taken along the line AA of the lead wire unit of the present invention.
【符号の説明】 １ 耐熱性シール部材 １ａ 圧縮部 ３ リード線 ３ｂ 耐熱性絶縁被覆[Explanation of symbols] 1 Heat resistant seal member 1a Compressor 3 lead wire 3b Heat resistant insulation coating
───────────────────────────────────────────────────── フロントページの続き (72)発明者 湯口 伸吾 静岡県浜名郡雄踏町宇布見4251番地 日 星電気株式会社内 (72)発明者 斉藤 幸隆 静岡県浜名郡雄踏町宇布見4251番地 日 星電気株式会社内 (72)発明者 福山 昌男 愛知県岩倉市八劔町野畑56番地 株式会 社アイワ内 (72)発明者 横井 浩明 愛知県岩倉市八劔町野畑56番地 株式会 社アイワ内 (72)発明者 山田 輝雄 愛知県岩倉市八劔町野畑56番地 株式会 社アイワ内 (72)発明者 近藤 久仁幸 愛知県岩倉市八劔町野畑56番地 株式会 社アイワ内 (56)参考文献 特開 昭63−4081（ＪＰ，Ａ) 特開 昭61−279007（ＪＰ，Ａ) 特開 昭63−194515（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) H01B 7/00 - 7/02 H01B 7/30 - 7/36 H01B 17/58 H02G 3/22 H01R 13/40 - 13/533 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shingo Yuguchi 4251 Ubumi, Yutoku-cho, Hamana-gun, Shizuoka Nissei Electric Co., Ltd. (72) Inventor Yukitaka Saito 4251 Ubumi, Yutoku-cho, Hamana-gun, Shizuoka Nissei Electric Co., Ltd. (72) Inventor Masao Fukuyama 56 Nobata, Hachirachi-cho, Iwakura-shi, Aichi Stock company Aiwa (72) Inventor Hiroaki Yokoi 56 Nobata, Hachishi-cho, Iwakura-shi, Aichi Stock company Aiwa (72) Inventor Teruo Yamada 56 Nobata, Hachirachi-cho, Iwakura-shi, Aichi Incorporated Aiwa (72) Inventor Kuniyuki Kondo 56 Nobata, Hachirachi-cho, Iwakura-shi, Aichi (56) References JP 63- 4081 (JP, A) JP 61-279007 (JP, A) JP 63-194515 (JP, A) (58) Fields investigated (Int.Cl. 7 , DB name) H01B 7/ 00-7 / 02 H01B 7/30-7/36 H01B 17/5 8 H02G 3/22 H01R 13/40-13/533
Claims (2)
通してなるリード線ユニットにおいて、該耐熱性シール
部材の少なくとも一部を加熱圧縮することにより、該耐
熱性シール部材と該リード線の耐熱性絶縁被覆とを融着
させたことを特徴とするリード線ユニット。1. A lead wire unit comprising a heat resistant seal member having an end portion of a lead wire inserted therein, wherein at least a part of the heat resistant seal member is heat-compressed to form the heat resistant seal member and the lead wire. And a heat resistant insulating coating of 1.
の耐熱性絶縁被覆がフッ素樹脂からなる請求項１記載の
リード線ユニット。2. The lead wire unit according to claim 1, wherein the heat resistant seal member and the heat resistant insulating coating of the lead wire are made of fluororesin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19348092A JP3369596B2 (en) | 1992-06-26 | 1992-06-26 | Lead wire unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19348092A JP3369596B2 (en) | 1992-06-26 | 1992-06-26 | Lead wire unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06314522A JPH06314522A (en) | 1994-11-08 |
| JP3369596B2 true JP3369596B2 (en) | 2003-01-20 |
Family
ID=16308731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19348092A Ceased JP3369596B2 (en) | 1992-06-26 | 1992-06-26 | Lead wire unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3369596B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5510445B2 (en) * | 2009-02-20 | 2014-06-04 | 住友電気工業株式会社 | Coaxial wire wiring body, manufacturing method thereof, and electronic device |
-
1992
- 1992-06-26 JP JP19348092A patent/JP3369596B2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06314522A (en) | 1994-11-08 |
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