JPH0637574Y2 - Sealed wire connection terminal - Google Patents
Sealed wire connection terminalInfo
- Publication number
- JPH0637574Y2 JPH0637574Y2 JP8695491U JP8695491U JPH0637574Y2 JP H0637574 Y2 JPH0637574 Y2 JP H0637574Y2 JP 8695491 U JP8695491 U JP 8695491U JP 8695491 U JP8695491 U JP 8695491U JP H0637574 Y2 JPH0637574 Y2 JP H0637574Y2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- terminal
- heat
- electric wire
- resin layer
- 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.)
- Expired - Lifetime
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- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は、被覆電線を接続するた
めに用いる電線接続端子であって、接続電線の芯線を外
部に露出することなく完全密閉状に接続し得る密閉型電
線接続端子に関する考案である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric wire connecting terminal used for connecting a covered electric wire, and a sealed electric wire connecting terminal capable of making a completely sealed connection without exposing the core wire of the connecting electric wire to the outside. It is a device.
【０００２】[0002]
【従来の技術】通常、被覆電線を端子に接続した時に、
被覆電線の芯線の１部が外部に露出した状態にあると漏
電等の恐れがあって好ましくない。そこで本出願人は先
に実開平３ー３４０６０号で接続電線の芯線を外部に露
出することなく完全密閉状に接続し得る密閉型電線接続
端子を提案した。この提案によれば、端子に挿入接続さ
れた被覆電線の芯線は端子の筒部に圧着された状態で熱
収縮性の合成樹脂製チューブによって完全に被覆密閉さ
れて高度な水密性を確保することができるが、次のよう
な問題点を含んでいる。2. Description of the Related Art Normally, when a covered electric wire is connected to a terminal,
If a part of the core wire of the covered electric wire is exposed to the outside, there is a risk of electric leakage, which is not preferable. Therefore, the present applicant has previously proposed, in Japanese Utility Model Laid-Open No. 3-34060, a sealed electric wire connecting terminal capable of connecting a core wire of a connecting electric wire in a completely hermetically sealed state without exposing the core wire to the outside. According to this proposal, the core wire of the covered electric wire inserted and connected to the terminal is completely covered and sealed by a heat-shrinkable synthetic resin tube in a state of being crimped to the tubular portion of the terminal to ensure high watertightness. However, it has the following problems.
【０００３】[0003]
【考案が解決しようとする課題】即ち、この先行技術に
よれば、接続すべき被覆電線の芯線が挿入される電線接
続端子の筒部の先端側開口端面が、合成樹脂製チューブ
の垂直な閉鎖膜によって密閉されているので、挿入され
る芯線の先端はこの閉鎖膜に当接して筒部開口端から繰
り出すことができず、この筒部の内部のみに収められ
る。従って電線接続時に於いて、限られた長さの筒部の
中央部を圧着したときに芯線の先端膨らみ部分を充分な
長さにわたって形成することが出来ない。この膨らみ部
分が少ないと、電線の引き抜き方向に対する対抗力が弱
くなり、強固な電線接続が達成できない。That is, according to this prior art, the tip end side open end surface of the tubular portion of the wire connecting terminal into which the core wire of the covered electric wire to be connected is inserted is used to vertically close the synthetic resin tube. Since it is hermetically sealed by the membrane, the tip of the inserted core wire cannot come out from the open end of the tubular part by coming into contact with the closed membrane, and is housed only inside the tubular part. Therefore, at the time of connecting the electric wire, when the central portion of the cylindrical portion having a limited length is crimped, the bulging portion of the tip of the core wire cannot be formed over a sufficient length. If this bulge is small, the resistance against the pulling out direction of the wire will be weak, and a strong wire connection cannot be achieved.
【０００４】そこで本考案では、端子の筒部の先端側開
口部分の前方に少しの空間を有する状態で熱収縮性樹脂
チューブにより端子筒部の先端側開口部分を密閉するよ
うにし、これにより電線を圧着接続した時に、芯線先端
の膨らみ部分がこの空間にわたって充分な長さで形成で
きるようにして電線の引き抜き方向に対する対抗力を高
め、以って、電線を強固に接続することができるように
した電線接続端子を提供することを主たる目的とするも
のである。In view of this, in the present invention, the heat-shrinkable resin tube is used to seal the distal end opening portion of the terminal tubular portion with a small space in front of the distal end opening portion of the tubular portion of the terminal. When crimping and connecting, the bulging part of the core wire tip can be formed with sufficient length over this space to enhance the resistance against the wire withdrawing direction, and thus to firmly connect the wire. The main purpose is to provide the electric wire connection terminal.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に、本考案に係る電線接続端子にあっては、電線接続筒
部(1a)を有する金属製端子(1)と、該電線接続筒部(1a)
を内嵌被覆する小径部(2a)並びに電線(5)の被覆部(5a)
上を外套するための大径部(2b)とを有する合成樹脂製チ
ューブ(2)と、該チューブ(2)の内周面全域に接合された
熱熔融性樹脂層(3)とからなり、前記チューブ(2)が熱収
縮性樹脂材で形成され、前記熱熔融性樹脂層(3)が前記
チューブ(2)の加熱収縮温度以下の温度によって熔融す
る樹脂材で形成され、前記小径部(2a)がチューブ(2)を
加熱収縮することによって形成された電線接続端子に於
いて、前記端子(1)の筒部(1a)から少し離れた端子先端
部(1b)側の位置に起立突起(1c)が切り起こして形成され
ており、前記チューブ(2)及び熱熔融性樹脂層(3)がこの
起立突起(1c)を越える位置まで延長して形成され、該延
長部分(2c)が加熱収縮されて端子(1)の胴部(1d)に密着
され、これにより端子(1)の前記筒部(1a)と起立突起(1
c)との間に空間部(4)を有する状態で筒部(1a)の先端側
開口部分を密閉する構造とされており、更に前記チュー
ブ(2)は内層の熱熔融性樹脂層(3)を含めて透視可能な透
明体で形成されている構造とした。In order to achieve the above object, in the wire connecting terminal according to the present invention, a metal terminal (1) having a wire connecting tube portion (1a) and the wire connecting tube are provided. Part (1a)
Small-diameter part (2a) that covers the inside of the wire
A synthetic resin tube (2) having a large-diameter portion (2b) for overcoating, and a heat-meltable resin layer (3) bonded to the entire inner peripheral surface of the tube (2), The tube (2) is formed of a heat-shrinkable resin material, the heat-meltable resin layer (3) is formed of a resin material that melts at a temperature equal to or lower than the heat-shrinkage temperature of the tube (2), and the small diameter portion ( 2a) is an electric wire connection terminal formed by heat-shrinking the tube (2), and an upright projection is formed at a position on the terminal tip (1b) side slightly apart from the tubular portion (1a) of the terminal (1). (1c) is formed by cutting and raising, the tube (2) and the hot-melt resin layer (3) are formed to extend to a position beyond this standing protrusion (1c), the extended portion (2c) It is heat-shrinked and brought into close contact with the body portion (1d) of the terminal (1), whereby the tubular portion (1a) of the terminal (1) and the standing protrusion (1
It has a structure in which the distal end side opening portion of the tubular portion (1a) is sealed in a state of having a space portion (4) between the tube (2) and the inner heat-melting resin layer (3). ) Is included to form a transparent body.
【０００６】[0006]
【作用】上記のごとく構成された電線接続端子では、先
ず図３に示すように、端子(1)の筒部(1a)に電線(5)の芯
線(5b)を起立突起(1c)に当たるまで差し込んだ後、図４
で示すように、筒部(1a)の中間部分を圧着工具で圧着し
て電線を結合する。この時、筒部(1a)の先端と起立突起
(1c)との間に空間部(4)が形成されているので、圧着に
よって生じる芯線(5b)の先端部分の膨らみが圧着部分か
ら空間部全長にわたって広い範囲で形成されるので、電
線の引き抜き方向に対する対抗力が増大し、電線を強固
に接続することができる。このようにして被覆電線(5)
を接続した後、図５で示すように、合成樹脂製チューブ
(2)の大径部(2b)をホットガン等の加熱器具を用いて加
熱収縮させ、同時に大径部内面の熱熔融樹脂層(3)を熔
融させることによって、大径部(2b)を電線の被覆部(5a)
に密着させる。これにより被覆を剥離した芯線部分を完
全に密閉することができるものである。In the electric wire connecting terminal constructed as described above, first, as shown in FIG. 3, until the core wire (5b) of the electric wire (5) hits the standing protrusion (1c) on the tubular portion (1a) of the terminal (1). Figure 4 after plugging
As shown in, the middle portion of the tubular portion (1a) is crimped with a crimping tool to join the wires. At this time, the tip of the tube (1a) and the standing protrusion
Since the space (4) is formed between it and (1c), the bulge at the tip of the core wire (5b) caused by crimping is formed in a wide range from the crimping part over the entire length of the space, so that the wire can be pulled out. The resistance against the direction is increased, and the electric wire can be firmly connected. In this way the covered electric wire (5)
After connecting, as shown in Fig. 5, the synthetic resin tube
The large diameter portion (2b) of (2) is heated and shrunk by using a heating device such as a hot gun, and at the same time, the hot-melt resin layer (3) on the inner surface of the large diameter portion is melted, so that the large diameter portion (2b) is converted into an electric wire. Cover part (5a)
In close contact with. As a result, the core wire portion from which the coating has been peeled off can be completely sealed.
【０００７】[0007]
【実施例】以下、本考案を図１乃至図５で示した実施例
を参照にして説明する。 この実施例では、平板状の連
結用先端部(1b)を丸孔(1e)のある円形に形成し、胴部(1
d)を介して筒部(1a)を他端に形成した所謂丸形端子に本
考案を実施した。金属端子(1)は銅板製で、外部の熱収
縮性チューブ(2)はナイロン等の樹脂で作られ、その内
面にチューブ(2)の加熱収縮温度以下の温度によって熔
融するポリアミド等の樹脂材で形成された熱熔融樹脂層
(3)が積層された二重チューブ状にしてある。該チュー
ブ(2)は同芯円形の大小二段の筒形部分(2b)、(2a)を持
ち、小径部(2a)が加熱収縮によって前記端子(1)の筒部
(1a)の外周面に密着されている。チューブの大径部(2b)
は加熱収縮前の状態にあって被覆電線(5)の被覆部(5a)
が容易に挿入出来る寸法に設定されている。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in FIGS. In this embodiment, the plate-like connecting tip (1b) is formed in a circular shape with a round hole (1e), and the body (1
The present invention is applied to a so-called round terminal in which the cylindrical portion (1a) is formed at the other end via the d). The metal terminal (1) is made of copper plate, the external heat-shrinkable tube (2) is made of resin such as nylon, and its inner surface is made of a resin material such as polyamide that melts at a temperature below the heat-shrinkage temperature of the tube (2). Hot-melt resin layer formed by
It is in the form of a double tube in which (3) is laminated. The tube (2) has concentric circular large and small tubular portions (2b) and (2a), and the small diameter portion (2a) is heat-shrinked so that the tubular portion of the terminal (1).
It is in close contact with the outer peripheral surface of (1a). Large diameter part of tube (2b)
Is in the state before heat shrinkage, and the covered part (5a) of the covered electric wire (5)
Are set to dimensions that allow easy insertion.
【０００８】而して、前記端子(1)の筒部(1a)から少し
離れた端子先端部(1b)側の位置に起立突起(1c)が切り起
こして形成されており、前記チューブ(2)及び熱熔融性
樹脂層(3)がこの起立突起(1c)を越える位置まで延長し
て形成されて、該延長部分(2c)の先端が加熱収縮されて
端子(1)の平らな胴部(1d)に密着されている。これによ
り端子(1)の前記筒部(1a)と起立突起(1c)との間に空間
部(4)を有する状態で筒部(1a)の先端側開口部分が密閉
されている。又、前記チューブ(2)は内層の熱熔融性樹
脂層(3)を含めて内部透視可能な透明体で形成されてお
り、これにより電線の挿入状態や圧着又は圧縮状態を透
視することができる。尚、チューブ(2)を薄く着色し
て、その色を筒部のサイズによって色分けしておくとサ
イズを間違える事なく便利に使用できる。Thus, the standing protrusion (1c) is formed by cutting and raising the terminal (1b) side of the terminal (1) slightly apart from the tubular portion (1a) of the tube (2). ) And the heat-meltable resin layer (3) are extended to a position beyond the standing protrusions (1c), and the tips of the extended portions (2c) are heat-shrinked to flatten the body of the terminal (1). It is closely attached to (1d). As a result, the front end side opening of the tubular portion (1a) is sealed with the space (4) between the tubular portion (1a) of the terminal (1) and the standing protrusion (1c). In addition, the tube (2) is formed of a transparent body that allows internal see-through including the heat-fusible resin layer (3) of the inner layer, so that the inserted state of the electric wire or the crimped or compressed state can be seen through. . In addition, if the tube (2) is lightly colored and the color is color-coded according to the size of the tubular portion, it can be conveniently used without making a mistake in the size.
【０００９】上記実施例は、本考案を丸形端子に応用し
た例を示したが、図６で示すような二叉状の端子やその
他の任意の形態の接続部を持つ端子に実施出来ることは
勿論である。又、前記チューブ(2)は上記に述べた素材
の外に、高温用ナイロンと低温熔融ナイロンによる二重
層のものや、高密度ポリエチレンでもよく、内層部に形
成される熱熔融性樹脂層(3)は熱熔融性接着剤であって
もよい。この場合、電線の被覆材として一般に用いられ
ているポリ塩化ビニールとの接着性の良い材料がよい。In the above embodiment, the present invention is applied to a round terminal. However, the present invention can be applied to a bifurcated terminal as shown in FIG. 6 or a terminal having a connection part of any other form. Of course. In addition to the materials described above, the tube (2) may be a double layer of high temperature nylon and low temperature melting nylon, or high density polyethylene, and the heat melting resin layer (3 ) May be a hot melt adhesive. In this case, a material having good adhesiveness to polyvinyl chloride, which is generally used as a covering material for electric wires, is preferable.
【００１０】以上本考案の代表的な実施例について説明
したが、本考案は必ずしも上記の実施例構造のみに限定
されるものでなく、本考案の構成要件を備え、且つ効果
を有する範囲内で適宜変更して実施出来ることは勿論で
ある。Although the representative embodiment of the present invention has been described above, the present invention is not necessarily limited to the structure of the above-mentioned embodiment, and within the scope of having the constituent features of the present invention and being effective. Of course, it can be implemented by appropriately changing it.
【００１１】[0011]
【考案の効果】本考案は、上記のごとく構成されたもの
であるから、端子に接続された被覆電線の芯線は熱収縮
性の合成樹脂製チューブによって完全に密閉されて電線
接続部における水密性を確保することが出来るものであ
るが、特に本考案では、電線接続時に於いて、端子の筒
部に電線の芯線を起立突起に当たるまで差し込んで端子
筒部を圧着結合したときに、筒部の先端と起立突起との
間に空間部が形成されているので、圧着によって生じる
芯線の先端部分の膨らみが圧着部分から空間部全長にわ
たって広い範囲で形成することができ、これにより電線
の引き抜き方向に対する対抗力が著しく増大して電線を
強固に接続することができ、かくて長年月の使用に耐え
得る密封状の電線接続状態を補償することができる等の
効果がある。Since the present invention is constructed as described above, the core wire of the covered electric wire connected to the terminal is completely sealed by the heat-shrinkable synthetic resin tube so that the water-tightness at the electric wire connecting portion is improved. In particular, in the present invention, when the wire is connected, when the core of the wire is inserted into the tubular part of the terminal until it hits the upright protrusion and the terminal tubular part is crimp-bonded, Since the space is formed between the tip and the standing protrusion, the bulge of the tip portion of the core wire caused by crimping can be formed in a wide range from the crimping portion to the entire length of the space, and thus the bulging with respect to the drawing direction of the wire. There is an effect that the opposing force is remarkably increased and the electric wire can be firmly connected, thus compensating for the sealed electric wire connection state that can endure the use for many years.
【図１】本考案に係る電線接続端子の金属端子部分のみ
を示す斜視図である。FIG. 1 is a perspective view showing only a metal terminal portion of an electric wire connection terminal according to the present invention.
【図２】本考案に係る電線接続端子の断面図である。FIG. 2 is a sectional view of an electric wire connecting terminal according to the present invention.
【図３】図２で示した電線接続端子に電線を接続する過
程の第一段階を示す断面図である。FIG. 3 is a cross-sectional view showing a first step in the process of connecting an electric wire to the electric wire connecting terminal shown in FIG.
【図４】電線接続過程の第二段階を示す断面図である。FIG. 4 is a cross-sectional view showing a second stage of the electric wire connecting process.
【図５】電線接続過程の最終段階を示す断面図である。FIG. 5 is a cross-sectional view showing the final stage of the electric wire connecting process.
【図６】本考案の他の実施例を示す斜視図である。FIG. 6 is a perspective view showing another embodiment of the present invention.
(1) 金属端子 (1a) 金属端子の筒部 (1b) 金属端子の先端部 (1c) 金属端子の起立部 (1d) 金属端子の胴部 (2) チューブ (2a) チューブの小径部 (2b) チューブの大径部 (2c) チューブの延長部分 (3) 熱熔融性樹脂層 (4) 空間部 (5) 電線 (5a) 電線の被覆部 (5b) 電線の芯線 (1) Metal terminal (1a) Metal terminal tube (1b) Metal terminal tip (1c) Metal terminal upright (1d) Metal terminal trunk (2) Tube (2a) Tube small diameter section (2b) ) Large diameter part of the tube (2c) Extension part of the tube (3) Thermofusible resin layer (4) Space part (5) Wire (5a) Wire sheath (5b) Wire core wire
Claims (1)
(1)と、該電線接続筒部(1a)を内嵌被覆する小径部(2a)
並びに電線(5)の被覆部(5a)上を外套するための大径部
(2b)とを有する合成樹脂製チューブ(2)と、該チューブ
(2)の内周面全域に接合された熱熔融性樹脂層(3)とから
なり、前記チューブ(2)が熱収縮性樹脂材で形成され、
前記熱熔融性樹脂層(3)が前記チューブ(2)の加熱収縮温
度以下の温度によって熔融する樹脂材で形成され、前記
小径部(2a)がチューブ(2)を加熱収縮することによって
形成された電線接続端子に於いて、前記端子(1)の筒部
(1a)から少し離れた端子先端部(1b)側の位置に起立突起
(1c)が切り起こして形成されており、前記チューブ(2)
及び熱熔融性樹脂層(3)がこの起立突起(1c)を越える位
置まで延長して形成され、該延長部分(2c)が加熱収縮さ
れて端子(1)の胴部(1d)に密着され、これにより端子(1)
の前記筒部(1a)と起立突起(1c)との間に空間部(4)を有
する状態で筒部(1a)の先端側開口部分を密閉する構造と
されており、更に前記チューブ(2)は内層の熱熔融性樹
脂層(3)を含めて透視可能な透明体で形成されている密
閉型電線接続端子。1. A metal terminal having a wire connection tube portion (1a)
(1) and a small-diameter portion (2a) for internally fitting and covering the electric wire connection tubular portion (1a)
And a large-diameter part for overcoating the covering part (5a) of the electric wire (5)
A synthetic resin tube (2) having (2b);
(2) consisting of a heat-meltable resin layer (3) bonded to the entire inner peripheral surface, the tube (2) is formed of a heat-shrinkable resin material,
The heat-fusible resin layer (3) is formed of a resin material that melts at a temperature not higher than the heat shrinkage temperature of the tube (2), and the small diameter portion (2a) is formed by heat shrinking the tube (2). In the wire connection terminal, the tube part of the terminal (1)
Standing protrusions at the terminal tip (1b) side, which is slightly away from (1a)
The tube (2) is formed by cutting and raising (1c).
And the heat-fusible resin layer (3) is extended to a position beyond the standing protrusions (1c), and the extended portion (2c) is heat-shrinked to be closely attached to the body (1d) of the terminal (1). , This allows the terminal (1)
The tube portion (1a) and the standing protrusion (1c) has a space portion (4) between the tube portion (1a) and the tube-shaped (2) ) Is a hermetically sealed electric wire connecting terminal formed of a transparent body including the inner heat-melting resin layer (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8695491U JPH0637574Y2 (en) | 1991-09-27 | 1991-09-27 | Sealed wire connection terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8695491U JPH0637574Y2 (en) | 1991-09-27 | 1991-09-27 | Sealed wire connection terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0531130U JPH0531130U (en) | 1993-04-23 |
| JPH0637574Y2 true JPH0637574Y2 (en) | 1994-09-28 |
Family
ID=13901268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8695491U Expired - Lifetime JPH0637574Y2 (en) | 1991-09-27 | 1991-09-27 | Sealed wire connection terminal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0637574Y2 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09306574A (en) * | 1996-05-14 | 1997-11-28 | Sumitomo Wiring Syst Ltd | Battery terminal |
| JP3214393B2 (en) * | 1997-04-16 | 2001-10-02 | 住友電装株式会社 | Ground terminal fitting |
| JP5391700B2 (en) * | 2009-01-19 | 2014-01-15 | 株式会社オートネットワーク技術研究所 | Electric wire with terminal |
| JP5710996B2 (en) * | 2011-02-04 | 2015-04-30 | 矢崎総業株式会社 | Electric wire and terminal connection structure and manufacturing method thereof |
| JP2012185984A (en) * | 2011-03-04 | 2012-09-27 | Auto Network Gijutsu Kenkyusho:Kk | Electric wire with terminal fitting |
| JP5880849B2 (en) * | 2012-05-15 | 2016-03-09 | 住友電装株式会社 | Crimp terminal |
| JP6206636B2 (en) * | 2013-02-04 | 2017-10-04 | 矢崎総業株式会社 | Connection part water stop structure and connection part water stop method |
| JP6182326B2 (en) * | 2013-02-24 | 2017-08-16 | 古河電気工業株式会社 | Manufacturing method of terminal and manufacturing method of electric wire connection structure |
| JP2018092734A (en) * | 2016-11-30 | 2018-06-14 | 古河電気工業株式会社 | Electric wire with terminal, terminal, and wiring harness |
-
1991
- 1991-09-27 JP JP8695491U patent/JPH0637574Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0531130U (en) | 1993-04-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |