JP5933942B2 - Branch cable - Google Patents

Branch cable Download PDF

Info

Publication number
JP5933942B2
JP5933942B2 JP2011182519A JP2011182519A JP5933942B2 JP 5933942 B2 JP5933942 B2 JP 5933942B2 JP 2011182519 A JP2011182519 A JP 2011182519A JP 2011182519 A JP2011182519 A JP 2011182519A JP 5933942 B2 JP5933942 B2 JP 5933942B2
Authority
JP
Japan
Prior art keywords
cable
branch
conductor
trunk
exposed
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.)
Active
Application number
JP2011182519A
Other languages
Japanese (ja)
Other versions
JP2013045622A (en
Inventor
智 中司
智 中司
前田　泰弘
泰弘 前田
中村　幸司
幸司 中村
佐藤　浩之
浩之 佐藤
内田　桂
桂 内田
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.)
Yazaki Energy System Corp
Original Assignee
Yazaki Energy System 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 Yazaki Energy System Corp filed Critical Yazaki Energy System Corp
Priority to JP2011182519A priority Critical patent/JP5933942B2/en
Publication of JP2013045622A publication Critical patent/JP2013045622A/en
Application granted granted Critical
Publication of JP5933942B2 publication Critical patent/JP5933942B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Cable Accessories (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Insulated Conductors (AREA)

Description

本発明は、幹線ケーブルと分岐線ケーブルとから成るブランチケーブルに関するものであって、例えば各種建造物等における情報供給用ケーブル（屋内配線ケーブル等）として適用されるものである。   The present invention relates to a branch cable composed of a trunk cable and a branch cable, and is applied as, for example, an information supply cable (such as an indoor wiring cable) in various buildings.

単線構造のケーブル（例えば特許文献１，２）ではなく、図４，図５Ａ（外観図），Ｂ（概略図）に示すように幹線ケーブル１の外周面に分岐線ケーブル２の一端部が分岐接続箇所３にて接続（分岐接続箇所３における幹線ケーブル１の外周面から分岐して延設するように接続（電気的接続））された構造のブランチケーブルが知られており、例えば各種建造物等における情報供給用ケーブル（屋内配線ケーブル等）として適用されているものがある（例えば特許文献３）。幹線ケーブル１，分岐線ケーブル２としては、それぞれ導体（長尺線状，ワイヤー状の導体）１ａ，２ａの外周側を被覆層（例えば絶縁層，シース層等を積層した構造の被覆層）１ｂ，２ｂで覆って成るものが挙げられる。   One end of the branch line cable 2 branches to the outer peripheral surface of the main line cable 1 as shown in FIGS. 4, 5A (outside view) and B (schematic diagram) instead of a single line structure cable (for example, Patent Documents 1 and 2). A branch cable having a structure connected at the connection point 3 (connected so as to extend from the outer peripheral surface of the main cable 1 at the branch connection point 3 (electrical connection)) is known, for example, various buildings And the like (for example, Patent Document 3). As the trunk cable 1 and the branch cable 2, the outer sides of the conductors (long wire and wire conductors) 1 a and 2 a are respectively coated layers (for example, a coating layer having a structure in which an insulating layer, a sheath layer, etc. are laminated) 1 b , 2b.

幹線ケーブル１と分岐線ケーブル２とを接続する手法としては、予め分岐接続箇所３における被覆層１ｂ，２ｂをそれぞれ剥離加工（例えば、いわゆる皮むきによって剥離除去）し露出した導体１ａ，２ａを互いに接続し、分岐接続箇所３における露出した導体１ａ，２ａ等を絶縁性材料（例えばポリ塩化ビニル，ポリエチレン等のプラスチック材料）から成る保護膜４を被覆（モールド成形等により被覆）してシールするシール加工を施す手法が挙げられる。   As a method of connecting the trunk cable 1 and the branch cable 2, the exposed conductors 1 a and 2 a are previously separated from each other by stripping the covering layers 1 b and 2 b at the branch connection point 3 (for example, peeling and removing by so-called peeling). Seal that connects and seals the exposed conductors 1a, 2a, etc. at the branch connection point 3 with a protective film 4 made of an insulating material (for example, plastic material such as polyvinyl chloride, polyethylene, etc.). There is a method of applying processing.

分岐接続箇所３の剥離加工では、その分岐接続箇所３における幹線ケーブル１，分岐線ケーブル２の被覆層１ｂ，２ｂを剥離することにより、導体径方向に対する断面形状が円環状の切り欠き部（円筒状の切り欠き部）１ｃ，２ｃがそれぞれ形成される。そして、前記の切り欠き部１ｃ，２ｃによって露出（導体周方向に対し全周に亘って露出）された導体１ａ，２ａにおいて、その露出した導体外周面が互いに当接するように束状に重ね合わせ、圧着コネクタ等の固定部材５により挟持して固定される。また、接続部位のシール加工では、分岐接続箇所３の露出した導体１ａ，２ａや固定部材５等の外周側を覆うように、絶縁性材料から成る保護膜（モールド成形等による保護膜）４を形成してシールすることにより、その分岐接続箇所における絶縁性，防水性等が付与される。   In the peeling process of the branch connection point 3, the covering layers 1 b and 2 b of the trunk cable 1 and the branch cable 2 at the branch connection point 3 are peeled so that the cross-sectional shape with respect to the conductor radial direction is a notch (cylindrical). Shaped cut-out portions) 1c and 2c are formed, respectively. The conductors 1a and 2a exposed by the notches 1c and 2c (exposed over the entire circumference in the conductor circumferential direction) are overlapped in a bundle so that the exposed outer peripheral surfaces of the conductors are in contact with each other. They are clamped and fixed by a fixing member 5 such as a crimp connector. Further, in the sealing process of the connection portion, a protective film (protective film by molding or the like) 4 made of an insulating material is provided so as to cover the outer peripheral sides of the exposed conductors 1a and 2a, the fixing member 5 and the like of the branch connection portion 3. By forming and sealing, insulation, waterproofness, etc. at the branch connection location are imparted.

以上示したようなブランチケーブルの場合、幹線ケーブル，分岐線ケーブルの分岐接続箇所において各導体を固定するための固定部材が適用され、その固定部材等を保護膜（横断面環状の保護膜）で被覆する必要があるため、固定部材の形状等に応じて分岐接続箇所が大型化してしまう恐れがある。この大型化により分岐接続箇所に大きな凹凸が存在していると、ブランチケーブルの所定箇所への配線作業（例えば管路等の狭所への配線作業）が妨げられることにもなる。   In the case of the branch cable as described above, a fixing member for fixing each conductor is applied at the branch connection point of the trunk cable and the branch cable, and the fixing member or the like is a protective film (a protective film having a circular cross section). Since it is necessary to coat, there is a possibility that the branch connection location will be increased depending on the shape of the fixing member. If there is a large unevenness at the branch connection location due to this increase in size, wiring work to a predetermined location of the branch cable (for example, wiring work to a narrow place such as a pipeline) will be hindered.

また、前記のように固定部材等が適用された分岐接続箇所を保護膜でシールするには、例えばシート状の保護膜を被覆しただけではシール性が不十分となる。そこで、保護膜をモールド成形によって形成する手法が採られているが、ケーブル製造設備において大型の射出成形機等を必要とし、そのモールド成形時間もかかってしまい、ブランチケーブルの生産性に影響を及ぼす恐れがある。   Further, in order to seal the branch connection portion to which the fixing member or the like is applied as described above with a protective film, for example, simply by covering the sheet-like protective film, the sealing performance becomes insufficient. Therefore, although a method of forming a protective film by molding is adopted, a large injection molding machine or the like is required in the cable manufacturing facility, which takes time for molding, and affects the productivity of the branch cable. There is a fear.

特開２００２−３６７４４１号公報JP 2002-367441 A 特開２００７−２８７６４７号公報JP 2007-287647 A 特開２００５−３５４７５８号公報。JP-A-2005-354758.

本願発明者は、前記のような背景技術等に伴って、ブランチケーブルにおいては以下に示す課題があることに着目した。すなわち、幹線ケーブルと分岐線ケーブルとの接続を簡略化（固定部材を用いずに接続）し、分岐接続箇所の大型化を抑制することが挙げられる。   The inventor of the present application has paid attention to the following problems in the branch cable due to the background art as described above. That is, it is possible to simplify the connection between the main line cable and the branch line cable (connect without using a fixing member) and suppress an increase in the size of the branch connection point.

この発明に係る押出し成形されて成るブランチケーブルは、前記の課題を解決すべく本願発明者の鋭意研究の末になされた技術的思想による創作である。   The extrusion-molded branch cable according to the present invention is a creation based on a technical idea that has been made after the intensive research of the present inventor in order to solve the above-described problems.

具体的に、この発明のブランチケーブルの一態様は、それぞれ導体の外周面が被覆層で覆われた幹線ケーブル，分岐線ケーブルを備え、その幹線ケーブルの分岐接続箇所に分岐線ケーブルの一端側が接続されたブランチケーブルであって、前記幹線ケーブルの分岐接続箇所における被覆層の一部を剥離して形成した導体径方向断面形状が円弧状の切り欠き部により露出された導体と、分岐線ケーブルの一端部側の被覆層を剥離して形成した導体径方向断面形状が円環状の切り欠き部により露出された導体と、が超音波溶着により接続され、前記分岐接続箇所の露出した導体の外周側を保護膜で被覆することによりシールされたことを特徴とする。   Specifically, one aspect of the branch cable of the present invention is provided with a trunk cable and a branch cable each having an outer peripheral surface of a conductor covered with a coating layer, and one end of the branch cable is connected to a branch connection portion of the trunk cable. A branch cable in which the conductor radial cross-sectional shape formed by peeling off a part of the coating layer at the branch connection point of the trunk cable is exposed by the arc-shaped notch, and the branch cable The outer circumferential side of the exposed conductor at which the branch connection portion is connected to the conductor whose cross-sectional shape in the radial direction of the conductor formed by peeling off the coating layer on one end side is connected by ultrasonic welding. It is characterized by being sealed by coating with a protective film.

また、前記幹線ケーブルの切り欠き部における周方向の長さは、前記幹線ケーブルにおける被覆層の外周の長さの半分以下であって、前記分岐線ケーブルの導体の直径以上であることを特徴とするものでも良い。   The length in the circumferential direction of the cutout portion of the trunk cable is not more than half of the outer circumference of the coating layer in the trunk cable and is not less than the diameter of the conductor of the branch cable. You can do it.

この発明のブランチケーブルの他の態様は、それぞれ導体の外周面が被覆層で覆われた幹線ケーブル，分岐線ケーブルを備え、前記幹線ケーブルの分岐接続箇所に分岐線ケーブルの一端側が接続されたブランチケーブルであって、前記分岐線ケーブルの導体に対し、該導体に接続される胴体部と幹線ケーブルの導体に接続される接続部とから成る接続端子が取り付けられ、前記幹線ケーブルの分岐接続箇所における被覆層の一部を剥離して形成した導体径方向断面形状が円弧状の切り欠き部により露出された導体と、前記接続端子の接続部と、が超音波溶着により接続され、前記分岐接続箇所の露出した導体の外周側を保護膜で被覆することによりシールされたことを特徴とする。   Another aspect of the branch cable according to the present invention includes a trunk line cable and a branch line cable, each of which has an outer peripheral surface covered with a coating layer, and one end side of the branch line cable is connected to a branch connection point of the trunk cable. A connection terminal consisting of a trunk portion connected to the conductor and a connection portion connected to the conductor of the trunk cable is attached to the conductor of the branch cable, and a branch connection portion of the trunk cable is attached to the conductor of the branch cable A conductor formed by peeling a part of the coating layer and having a radial cross-sectional shape exposed by an arc-shaped cutout portion is connected to the connection portion of the connection terminal by ultrasonic welding, and the branch connection portion The exposed conductor is sealed by covering the outer peripheral side of the conductor with a protective film.

また、前記幹線ケーブルの切り欠き部における周方向の長さは、前記幹線ケーブルにおける被覆層の外周の長さの半分以下であって、前記接続端子接続部の幅よりも大きいことを特徴とするものでも良い。   Further, the circumferential length of the cutout portion of the trunk cable is not more than half of the outer circumference of the covering layer of the trunk cable and is larger than the width of the connection terminal connection portion. Things can be used.

本発明に係るブランチケーブルによれば、幹線ケーブルと分岐線ケーブルとの接続を簡略化（固定部材を用いずに接続）し、分岐接続箇所の大型化を抑制することができる。   According to the branch cable according to the present invention, the connection between the main line cable and the branch line cable can be simplified (connected without using a fixing member), and the enlargement of the branch connection point can be suppressed.

実施例１に係るブランチケーブルの分岐接続箇所の概略説明図。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic explanatory diagram of a branch connection location of a branch cable according to Embodiment 1; 超音波溶着に係る概略説明図。Schematic explanatory drawing which concerns on ultrasonic welding. 実施例２に係るブランチケーブルの分岐接続箇所の概略説明図。FIG. 6 is a schematic explanatory diagram of a branch connection location of a branch cable according to a second embodiment. 一般的なブランチケーブルの概略説明図。Schematic explanatory drawing of a general branch cable. 一般的なブランチケーブルの分岐接続箇所の外観図（Ａ）および概略図（Ｂ）。The external view (A) and schematic (B) of the branch connection location of a general branch cable.

本発明に係るブランチケーブルは、幹線ケーブルにおける分岐接続箇所の被覆層において、一部を剥離することにより導体径方向の断面形状が円弧状の切り欠き部が形成され、残りの被覆層は当該分岐接続箇所における導体外周面に残存する。したがって、従来の幹線ケーブルにおける分岐接続箇所のように、導体径方向の断面形状が円環状の切り欠き部を形成し、導体において当該導体の全周に亘って露出させたものとは、全く異なる。また、幹線ケーブル，分岐線ケーブルにおける分岐接続箇所の各導体は、超音波溶着によって接続されるため、従来のように圧着コネクタ等の固定部材を用いる必要がない。   In the branch cable according to the present invention, in the covering layer at the branch connection point in the trunk cable, a notch portion having an arc-shaped cross section in the conductor radial direction is formed by peeling a part thereof, and the remaining covering layer is formed in the branch layer. It remains on the outer peripheral surface of the conductor at the connection location. Therefore, like the branch connection point in the conventional trunk cable, the cross-sectional shape in the conductor radial direction forms an annular notch, and is completely different from the conductor exposed over the entire circumference of the conductor. . Moreover, since each conductor of the branch connection location in the main line cable and branch line cable is connected by ultrasonic welding, there is no need to use a fixing member such as a crimp connector as in the prior art.

これにより、分岐接続箇所における露出した導体の外周側を保護膜でシールする必要のある領域は、従来の場合と比較して小さくすることができ、例えばブランチケーブルの所定箇所への配線作業効率を高めることができる。   Thereby, the area | region which needs to seal the outer peripheral side of the exposed conductor in a branch connection location with a protective film can be made small compared with the conventional case, for example, the wiring work efficiency to the predetermined location of a branch cable can be reduced. Can be increased.

また、分岐接続箇所において、例えば従来のように保護膜をモールド成形しなくとも、シート状の保護膜を被覆するだけでシール性を十分確保することができ、生産性の向上を図ることも可能となる。   In addition, even if the protective film is not molded at the branch connection location, for example, it is possible to ensure sufficient sealing performance by simply covering the sheet-shaped protective film, and to improve productivity. It becomes.

以下、本発明に係るブランチケーブルの実施例を説明する。なお、図４，図５等に示すものと同様のものには、同一符号等を用いて詳細な説明を省略する。   Embodiments of the branch cable according to the present invention will be described below. Note that the same components as those shown in FIGS. 4 and 5 are denoted by the same reference numerals, and detailed description thereof is omitted.

〔実施例１〕
図１に示すブランチケーブルにおいて、符号１０ｃは幹線ケーブル１の分岐接続箇所３における被覆層１ｂの一部を剥離して形成された切り欠き部であって、導体１ａの径方向に対する断面形状が円弧状（図１では略半円弧状）のものであり、その切り欠き部１０ｃにより幹線ケーブル１の導体１ａの一部が露出した状態となる。この露出した導体１ａの外周面と分岐線ケーブル２の露出された導体２ａとが互いに当接するように束状に重ね合わせ、それら導体１ａ，２ａに対して超音波振動エネルギーを付与することにより、両導体１ａ，２ａを当接面にて溶着（超音波溶着）させて電気的に接続する。そして、分岐接続箇所３における露出した導体１ａ，２ａの外周側を覆うように、絶縁性材料から成る保護膜４０を形成してシールすることにより、その分岐接続箇所３において絶縁性，防水性等が得られる。 [Example 1]
In the branch cable shown in FIG. 1, reference numeral 10 c denotes a notch formed by peeling off a part of the coating layer 1 b at the branch connection point 3 of the trunk cable 1, and the conductor 1 a has a circular cross-sectional shape in the radial direction. It has an arc shape (substantially semicircular arc shape in FIG. 1), and a part of the conductor 1a of the trunk cable 1 is exposed by the notch 10c. By superposing the exposed outer peripheral surface of the conductor 1a and the exposed conductor 2a of the branch cable 2 in a bundle so as to contact each other, and applying ultrasonic vibration energy to the conductors 1a and 2a, Both conductors 1a and 2a are electrically connected by welding (ultrasonic welding) at the contact surface. Then, by forming and sealing a protective film 40 made of an insulating material so as to cover the outer peripheral side of the exposed conductors 1a and 2a at the branch connection point 3, insulation, waterproofness, etc. at the branch connection point 3 are formed. Is obtained.

前記の切り欠き部１０ｃにおいては、幹線ケーブル１の分岐接続箇所３における被覆層１ｂの一部を剥離して形成されたものであって、分岐線ケーブル２の露出した導体２ａが溶着できる形状であれば良い。図１に示す切り欠き部１０ｃは導体径方向の断面形状が半円弧状であるが、分岐線ケーブル２の導体２ａの大きさや要求されるブランチケーブル特性（絶縁性，防水性，機械的特性等）に応じて形状を設定、例えば切り欠き部１０ｃにおける周方向の長さが、被覆層１ｂの外周の半分以下であって、分岐線ケーブル２の導体２ａの直径以上となる形状に設定することが挙げられ、保護膜の形状を必要最小限にして分岐接続部位３の大径化を抑制することが好ましい。   The cutout portion 10c is formed by peeling off a part of the coating layer 1b at the branch connection point 3 of the trunk cable 1, and has a shape in which the exposed conductor 2a of the branch cable 2 can be welded. I just need it. The cutout portion 10c shown in FIG. 1 has a semicircular cross section in the conductor radial direction. However, the size of the conductor 2a of the branch cable 2 and the required branch cable characteristics (insulation, waterproofness, mechanical characteristics, etc.) ), For example, the length in the circumferential direction of the notch 10c is less than or equal to half of the outer circumference of the covering layer 1b, and is set to be larger than the diameter of the conductor 2a of the branch line cable 2. It is preferable to suppress the increase in the diameter of the branch connection portion 3 by minimizing the shape of the protective film.

前記の超音波振動エネルギー付与による接続においては、電圧可変電源，発振機，振動子，ホーン等を備えた周知の超音波溶着機（例えば特許文献１）を適用することが挙げられる。例えば図２に示すように、超音波溶着機のチップ（工具ホーン）６と当該チップ６に相対するアンビル（受け側金具）７との間に、前記のように束状に重ね合わせられた導体１ａ，２ａを介在させ、チップ６とアンビル７とを互いに近づける方向に加圧した状態で、電圧可変電源，発振機，振動子，ホーン等（図示省略）を介して発生する超音波振動をチップ６に伝達させる。これにより、チップ６とアンビル７との間に介在する導体１ａ，２ａの当接面に超音波振動エネルギーが付与され、導体１ａ，２ａが超音波溶着される。なお、前記の超音波溶着の際、アンビル７側には幹線ケーブル１の分岐接続部位における被覆層１ｂが位置することになるが、例えば幹線ケーブル１の分岐接続部位を所定位置に固定するための固定溝７ａや当該固定溝７の内側表面に微小突起７ｂが備えられたアンビル７を適用することにより、超音波振動エネルギーが導体１ａ，２ａの当接面に対して十分付与されるようにすると共に、幹線ケーブル１の位置ずれを抑制することが好ましい。   In connection with the application of ultrasonic vibration energy, a known ultrasonic welding machine (for example, Patent Document 1) including a variable voltage power source, an oscillator, a vibrator, a horn, and the like can be used. For example, as shown in FIG. 2, a conductor stacked in a bundle as described above between a tip (tool horn) 6 of an ultrasonic welding machine and an anvil (receiving metal fitting) 7 facing the tip 6. Ultrasonic vibration generated via a variable voltage power source, an oscillator, a vibrator, a horn, etc. (not shown) in a state where the chip 6 and the anvil 7 are pressed in a direction approaching each other with the interposition of 1a and 2a. 6 is transmitted. Thereby, ultrasonic vibration energy is given to the contact surfaces of the conductors 1a and 2a interposed between the chip 6 and the anvil 7, and the conductors 1a and 2a are ultrasonically welded. During the ultrasonic welding, the coating layer 1b at the branch connection portion of the main cable 1 is positioned on the anvil 7 side. For example, the branch connection portion of the main cable 1 is fixed at a predetermined position. By applying the fixing groove 7a or the anvil 7 provided with the minute projections 7b on the inner surface of the fixing groove 7, the ultrasonic vibration energy is sufficiently applied to the contact surfaces of the conductors 1a and 2a. At the same time, it is preferable to suppress misalignment of the trunk cable 1.

前記の保護膜４０においては、例えばポリ塩化ビニル等のプラスチック材料やゴム系材料等の絶縁性材料から成るシート状保護膜であって、導体１ａ，２ａに接する側の面に粘着性接着材が塗布されたものを適用することが挙げられる。この保護膜４０の形状（厚さ等）は、露出した導体１ａ，２ａや切り欠き部１０ｃ，２ｃの形状等を考慮（シールできるように考慮）する他に、要求されるブランチケーブル特性を考慮して設定することが好ましい。また、露出した導体１ａ，２ａ等に対して予め接着剤，防水塗料等を塗布しておき、その塗布面を覆うように前記の保護膜４０を被覆することにより、防水性，絶縁性をより高めることも可能である。   The protective film 40 is a sheet-like protective film made of an insulating material such as a plastic material such as polyvinyl chloride or a rubber-based material, for example, and an adhesive material is provided on the surface in contact with the conductors 1a and 2a. Applying what was applied is mentioned. The shape (thickness, etc.) of the protective film 40 considers the shape of the exposed conductors 1a, 2a and the notches 10c, 2c, etc. (considering so as to be able to be sealed), as well as the required branch cable characteristics. Is preferably set. Further, by applying an adhesive, a waterproof paint, etc. to the exposed conductors 1a, 2a, etc. in advance and coating the protective film 40 so as to cover the coated surface, the waterproofness and insulation are further improved. It can also be increased.

〔実施例２〕
実施例１のブランチケーブルの導体１ａ，２ａの接続においては、幹線ケーブル１，２における被覆層１ｂ，２ｂの厚さや切り欠き部１０ｃ，２ｃの形状等に応じて、例えば図１に示したように分岐接続部位３における分岐線ケーブル２の露出した導体２ａ等が湾曲してしまい、その湾曲部にて応力が作用してしまうことがある。 [Example 2]
In connection of the conductors 1a and 2a of the branch cable of the first embodiment, for example, as shown in FIG. 1, depending on the thickness of the covering layers 1b and 2b in the trunk cables 1 and 2 and the shape of the cutout portions 10c and 2c. The exposed conductor 2a and the like of the branch line cable 2 at the branch connection site 3 may be bent, and stress may be applied to the bent portion.

前記のような湾曲を抑制するブランチケーブルとしては、図３に示すように分岐線ケーブル２における切り欠き部２ｃにより露出された導体２ａに対して、接続端子（圧着端子等）２０を取り付けた構造が考えられる。この接続端子２０では、露出された導体２ａに接続される胴体部２１と、その胴体部２１から導体２ａ軸方向に突出して延設された接続部２２と、を備えている。   As the branch cable for suppressing the bending as described above, a connection terminal (crimp terminal or the like) 20 is attached to the conductor 2a exposed by the notch 2c in the branch line cable 2 as shown in FIG. Can be considered. The connection terminal 20 includes a body portion 21 connected to the exposed conductor 2a, and a connection portion 22 extending from the body portion 21 so as to protrude in the axial direction of the conductor 2a.

前記のように導体２ａに取り付けられた接続端子２０の接続部２２と幹線ケーブル１の露出した導体１ａとが互いに当接するように束状に重ね合わせ、それら導体１ａ，接続部２２に対して超音波振動エネルギーを付与することにより、導体１ａ，接続部２２が当接面にて溶着（超音波溶着）し電気的に接続（導体１ａ，２ａを電気的に接続）される。そして、分岐接続箇所３における露出した導体１ａ，２ａ，接続端子２０の外周側を覆うように、絶縁性材料から成る保護膜４０を形成してシールすることにより、その分岐接続箇所において絶縁性，防水性等が得られる。   As described above, the connection portion 22 of the connection terminal 20 attached to the conductor 2a and the exposed conductor 1a of the trunk cable 1 are overlapped in a bundle so that they are in contact with each other. By applying sonic vibration energy, the conductor 1a and the connecting portion 22 are welded (ultrasonic welding) at the contact surface, and are electrically connected (electrically connected the conductors 1a and 2a). Then, by forming and sealing a protective film 40 made of an insulating material so as to cover the exposed conductors 1a and 2a and the outer peripheral side of the connection terminal 20 at the branch connection point 3, insulation at the branch connection point, Waterproofness etc. are obtained.

このように接続端子２０を用い、その接続端子２０を介して導体１ａ，２ａを接続することにより、前記のような分岐線ケーブル２の露出した導体２ａ等の湾曲を抑制することが可能となる。   By using the connection terminal 20 and connecting the conductors 1a and 2a through the connection terminal 20, it is possible to suppress the bending of the exposed conductor 2a and the like of the branch line cable 2 as described above. .

また、前記接続端子２０において、例えば図４に示すように、胴体部２１から導体２ａ軸方向に突出すると共に導体２ａ外周側方向に湾曲して延設された湾曲部２２ａと、その湾曲部２２ａから導体２ａ軸方向に突出した先端部２２ｂと、から成る接続部２２を構成したものを適用して、導体２ａ等の湾曲をより抑制することが可能となる。前記の湾曲部２２ａにおける湾曲の大きさは、幹線ケーブル１，分岐線ケーブル２における被覆層１ｂ，２ｂの厚さや切り欠き部１０ｃ，２ｃの形状等に応じて設定（例えば被覆層１ｂの厚さに合わせて設定）することが好ましい。   Further, in the connection terminal 20, for example, as shown in FIG. 4, a curved portion 22a that protrudes from the body portion 21 in the axial direction of the conductor 2a and is curved and extended in the outer peripheral side direction of the conductor 2a, and the curved portion 22a. It is possible to further suppress the bending of the conductor 2a or the like by applying the connecting portion 22 composed of the tip portion 22b protruding from the conductor 2a in the axial direction. The magnitude of the bending in the bending portion 22a is set according to the thickness of the covering layers 1b and 2b in the trunk cable 1 and the branch cable 2 and the shape of the notches 10c and 2c (for example, the thickness of the covering layer 1b). It is preferable to set according to

なお、本実施例２においても、実施例１で説明したように切り欠き部１０ｃの形状等の設定，超音波振動エネルギー付与による接続，保護膜の形状等の設定が可能であり、同様の作用効果が得られる。   In the second embodiment, as described in the first embodiment, it is possible to set the shape and the like of the notch 10c, connection by applying ultrasonic vibration energy, the shape of the protective film, and the like. An effect is obtained.

以上、本発明において、記載された具体例に対してのみ詳細に説明したが、本発明の技術思想の範囲で多彩な変更等が可能であることは、当業者にとって明白なことであり、このような変更等が特許請求の範囲に属することは当然のことである。   Although the present invention has been described in detail only for the specific examples described above, it is obvious to those skilled in the art that various modifications can be made within the scope of the technical idea of the present invention. It is natural that such changes and the like belong to the scope of the claims.

１…幹線ケーブル
１ａ，２ａ…導体
１ｂ，２ｂ…被覆層
２…分岐線ケーブル
３…分岐接続箇所
１０ｃ，２ｃ…切り欠き部
２０…接続端子
４０…保護膜 DESCRIPTION OF SYMBOLS 1 ... Trunk cable 1a, 2a ... Conductor 1b, 2b ... Coating layer 2 ... Branch line cable 3 ... Branch connection location 10c, 2c ... Notch part 20 ... Connection terminal 40 ... Protective film

Claims (2)

それぞれ導体の外周面が被覆層で覆われた幹線ケーブル，分岐線ケーブルを備え、その幹線ケーブルの分岐接続箇所に分岐線ケーブルの一端側が接続されたブランチケーブルであって、
前記幹線ケーブルの分岐接続箇所における被覆層の一部を剥離して形成した導体径方向断面形状が円弧状の切り欠き部により露出された導体と、分岐線ケーブルの一端部側の被覆層を剥離除去して形成した導体径方向断面形状が円環状の切り欠き部により露出された導体と、が束状に重なり合って超音波溶着により接続され、
前記分岐接続箇所の露出した導体の外周側を保護膜で被覆することによりシールされ、
前記幹線ケーブルの切り欠き部における周方向の長さは、前記幹線ケーブルにおける被覆層の外周の長さの半分以下であって、前記分岐線ケーブルの導体の直径以上であることを特徴とするブランチケーブル。 A branch cable having a trunk cable and a branch cable each having an outer peripheral surface covered with a coating layer, and having one end of the branch cable connected to a branch connection portion of the trunk cable,
The conductor formed by peeling off a part of the covering layer at the branch connection location of the trunk cable is exposed by the arc-shaped notch, and the covering layer on the one end side of the branch cable is peeled off. Conductor radial cross-sectional shape formed by removing the conductor exposed by an annular cutout overlapped in a bundle and connected by ultrasonic welding,
Sealed by covering the outer peripheral side of the exposed conductor of the branch connection location with a protective film,
The length in the circumferential direction of the cutout portion of the trunk cable is not more than half of the outer circumference of the covering layer of the trunk cable and is not less than the diameter of the conductor of the branch cable. cable. それぞれ導体の外周面が被覆層で覆われた幹線ケーブル，分岐線ケーブルを備え、前記幹線ケーブルの分岐接続箇所に分岐線ケーブルの一端側が接続されたブランチケーブルであって、
前記分岐線ケーブルの導体に対し、該導体に接続される胴体部と幹線ケーブルの導体に接続される接続部とから成る接続端子が取り付けられ、
前記幹線ケーブルの分岐接続箇所における被覆層の一部を剥離除去して形成した導体径方向断面形状が円弧状の切り欠き部により露出された導体と、前記接続端子の接続部と、が束状に重なり合って超音波溶着により接続され、
前記分岐接続箇所の露出した導体の外周側を保護膜で被覆することによりシールされ、
前記幹線ケーブルの切り欠き部における周方向の長さは、前記幹線ケーブルにおける被覆層の外周の長さの半分以下であって、前記接続端子接続部の幅よりも大きいことを特徴とするブランチケーブル。 A branch cable in which the outer peripheral surface of each conductor is provided with a trunk cable and a branch cable that are covered with a coating layer, and one end of the branch cable is connected to a branch connection portion of the trunk cable,
For the conductor of the branch line cable, a connection terminal consisting of a body part connected to the conductor and a connection part connected to the conductor of the trunk cable is attached,
A conductor in which the cross section of the conductor radial direction formed by peeling and removing a part of the coating layer at the branch connection location of the trunk cable is exposed by the arc-shaped cutout portion and the connection portion of the connection terminal are bundled overlap are connected by ultrasonic welding,
Sealed by covering the outer peripheral side of the exposed conductor of the branch connection location with a protective film,
The length of the circumferential direction in the notch part of the said trunk line cable is half or less of the outer peripheral length of the coating layer in the said trunk line cable, Comprising: The branch cable characterized by being larger than the width | variety of the said connection terminal connection part .
JP2011182519A 2011-08-24 2011-08-24 Branch cable Active JP5933942B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2011182519A JP5933942B2 (en) 2011-08-24 2011-08-24 Branch cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011182519A JP5933942B2 (en) 2011-08-24 2011-08-24 Branch cable

Publications (2)

Publication Number Publication Date
JP2013045622A JP2013045622A (en) 2013-03-04
JP5933942B2 true JP5933942B2 (en) 2016-06-15

Family

ID=48009368

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2011182519A Active JP5933942B2 (en) 2011-08-24 2011-08-24 Branch cable

Country Status (1)

Country Link
JP (1) JP5933942B2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105337243A (en) * 2014-08-15 2016-02-17 上海市高桥电缆厂有限公司 Bifurcation connector for multi-core branch cable and cable system containing bifurcation connector
CN104751990A (en) * 2015-03-18 2015-07-01 芜湖航天特种电缆厂 Branch cable
CN106057342A (en) * 2016-07-25 2016-10-26 苏州东威连接器电子有限公司 Pre-branch cable
JP7005117B2 (en) * 2019-05-29 2022-01-21 矢崎総業株式会社 Wires with terminals and wire harnesses
JP7404945B2 (en) * 2020-03-11 2023-12-26 住友電装株式会社 current branching device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3001020U (en) * 1994-02-14 1994-08-16 西日本電線株式会社 Cable with branch
JPH08251792A (en) * 1995-03-15 1996-09-27 Sumitomo Wiring Syst Ltd Electric wire connecting construction and method

Also Published As

Publication number Publication date
JP2013045622A (en) 2013-03-04

Similar Documents

Publication Publication Date Title
JP5933942B2 (en) Branch cable
JP5450949B2 (en) Shielded wire and method for manufacturing shielded wire
US9721699B2 (en) Water-stop structure for wire harness
US20090260847A1 (en) Data Transmission Cable and Method for Producing a Data Transmission Cable
JP2009043429A (en) Cable connection method and electronic equipment with cables connected
JP2011113928A (en) Shielded flat cable and its connection structure
JP2010097704A (en) Wire with molded connector
JP2013058330A (en) Connector connection terminal processing structure part of shield wire, and method for manufacturing connector connection terminal processing structure part of shield wire
KR20100071437A (en) Electro magnetic shielding tube
JP2012200110A (en) Method for manufacturing water stop structure of splice portion, water stop structure of splice portion, and wiring harness
JP6133232B2 (en) Power cable connection structure
WO2012032906A1 (en) Connector, cable with terminal, and terminal
JP2005142113A (en) Waterproof cable and its manufacturing method
JP2014121127A (en) Connection sleeve
JP6240583B2 (en) Connection structure of crimp terminal and electric wire
JP5954165B2 (en) Wire harness
JP2007109495A (en) Manufacturing device and method of shield wire
WO2015108011A1 (en) Terminal and electric-wire connection structure for terminal
JP2014146506A (en) Wire harness
JP2007109494A (en) Manufacturing device and method of shield wire
JP2001231123A (en) Water-tight normal temeperature thermo-shrink insulation cylinder and cable connector using the same
CN203659465U (en) Cable
CN212209787U (en) High connection stability electric wire connecting device for building
JP2012069314A (en) Insulation cap for electric wire terminal
WO2013161117A1 (en) Waterproof structure for electric wire connection

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20140718

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20150519

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20150526

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20150723

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20160202

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20160316

A911 Transfer to examiner for re-examination before appeal (zenchi)

Free format text: JAPANESE INTERMEDIATE CODE: A911

Effective date: 20160406

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20160426

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20160506

R150 Certificate of patent or registration of utility model

Ref document number: 5933942

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250