WO2013161117A1 - Waterproof structure for electric wire connection - Google Patents
Waterproof structure for electric wire connection Download PDFInfo
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- WO2013161117A1 WO2013161117A1 PCT/JP2012/081333 JP2012081333W WO2013161117A1 WO 2013161117 A1 WO2013161117 A1 WO 2013161117A1 JP 2012081333 W JP2012081333 W JP 2012081333W WO 2013161117 A1 WO2013161117 A1 WO 2013161117A1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/70—Insulation of connections
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- the present invention relates to a waterproof structure of a wire connecting portion in which core wires exposed from the end portions of the insulation coating of a pair of wires are electrically connected to each other.
- the core wires exposed from the ends of the insulation coating of the electric wires are connected to each other by, for example, ultrasonic welding or soldering, or by being crimped to a connecting conductor It has been known.
- the connecting portion of the core wire is exposed to the outside, it is necessary to cover the connecting portion with an insulator to prevent a short circuit and corrosion.
- a local battery is easily formed, and different metal contact corrosion easily occurs, resulting in a decrease in connection reliability.
- Patent Document 1 discloses a structure for sealing a connection portion of an electric wire.
- the connecting portion of the pair of electric wires and the insulating coatings at both ends thereof are covered with a tubular insulator having an inner diameter approximately equal to the outer diameter of the insulating coating of the pair of electric wires, and then thermally contracted. It is a configuration.
- the present invention has been completed based on the above-described circumstances, and an object thereof is to provide a waterproof structure for an electric wire connecting portion that is easy to work and highly waterproof.
- the present invention is a waterproof structure of an electric wire connecting portion, wherein an electric wire connecting portion in which core wires exposed from ends of an insulating coating of a pair of electric wires are electrically connected to each other, the electric wire connecting portion, and the pair of electric wires
- a cylindrical member that collectively covers the end portions of the insulation coating of the electric wires, and an annular shape that is provided on the cylindrical member and protrudes in an annular shape toward the inside and elastically adheres to the outer periphery of the insulation coating of the pair of electric wires
- the annular rib provided in the inner layer is elastically adhered to the insulating coating of the pair of electric wires, so that moisture can be prevented from entering the electric wire connecting portion side from the outside. .
- the cylindrical member includes an inner layer and an outer layer, and the outer layer is formed of a material having a hardness higher than that of the inner layer.
- the hard outer layer is firmly pressed against the insulating coating, and the sealing property of the wire connection portion can be further ensured.
- the annular rib can be pressed more strongly against the insulating coating, thereby further improving the sealing performance of the electric wire connecting portion. It becomes possible.
- the core wires When the wire connecting portions are connected to each other by a connecting conductor having a wire barrel for caulking the core wire, the core wires can be connected by a simple operation of caulking the wire barrel.
- FIG. 1 is a cross-sectional view showing a waterproof structure of a wire connecting portion according to an embodiment of the present invention.
- FIG. 2 is a conceptual diagram showing a state in which a pair of electric wires are similarly ultrasonically welded.
- FIG. 3 is a side view showing a state in which a pair of electric wires are electrically connected.
- FIG. 4 is a side view showing a state where the compression tape is wound similarly.
- FIG. 5 is a cross-sectional view showing a waterproof structure of a wire connecting portion according to another embodiment of the present invention.
- FIG. 1 is a cross-sectional view showing a waterproof structure of a wire connecting portion according to an embodiment of the present invention.
- the waterproof structure 10 of the electric wire connection portion is made of an aluminum wire 11 and a copper wire 15 that are electrically connected, more specifically, aluminum or an aluminum alloy exposed from the end of the insulating coating 12 of the aluminum wire 11.
- a cylindrical member 20 collectively covers the periphery of the wire connection portion 18 in which the core wire 13 and the core wire 17 made of copper or a copper alloy exposed from the end portion of the insulation coating 16 of the copper wire 15 are in a conductive state.
- a waterproof structure is formed by tightening with the compression tape 25.
- the cylindrical member 20 has a two-layer structure including an inner layer 21 made of synthetic rubber having rubber elasticity, and an outer layer 23 made of PBT or PP which is provided on the outer periphery of the inner layer 21 and has higher hardness than the inner layer 21.
- the cylindrical member 20 is manufactured by two-color molding, and the inner diameter thereof is slightly larger than the outer diameter of the insulating coatings 12 and 16 of the electric wires 11 and 15. Moreover, the length is set to a length suitable for collectively covering the vicinity of the ends of the electric wire connecting portion 18 and the insulating coatings 12 and 16 located at both ends thereof.
- annular ribs 22 are formed, each projecting annularly inward along the circumferential direction of the cylindrical member 20. These annular ribs 22 are set to a height and a position such that when the tubular member 20 is mounted on the outer periphery of the electric wire connecting portion 18, the top portion is pressed against the insulating coatings 12 and 16 of the electric wires 11 and 15. ing.
- the compression tape 25 is formed of, for example, a stretchable synthetic resin film, and an adhesive layer (not shown) is provided on the surface of the cylindrical member 20 that is in contact with the outer layer 23.
- variety is set to the width
- the waterproof structure 10 of the electric wire connection part of this embodiment is as having mentioned above, Next, the mounting method of the cylindrical member 20 is demonstrated.
- the insulation coatings 12 and 16 near the ends of the aluminum wire 11 and the copper wire 15 are peeled off to expose the core wires 13 and 17.
- the core wires 13 and 17 are connected to each other.
- a welding horn 31 is brought into contact therewith to apply ultrasonic vibration.
- the horn 31 vibrates at a high frequency, the core wires 13 and 17 are heated by friction, and the core wires 13 and 17 are joined and electrically connected (see FIG. 3).
- the tubular member 20 in the retracted position is pulled to the electric wire connecting portion 18 side, and the insulation covering of the electric wire connecting portion 18 and the electric wires 11 and 15 located at both ends thereof is performed. It moves to the position which covers 12 and 16 collectively. Then, as shown in FIG. 1, the annular ribs 22 provided near both ends of the inner layer 21 of the cylindrical member 20 are elastically pressed against the insulating coatings 12 and 16 of the electric wires 11 and 15. The part 18 is in a state of being shut off from the outside.
- the compression tape 25 is wound around the portion corresponding to the annular rib 22 in the vicinity of both ends of the cylindrical member 20 while being stretched (see FIG. 4).
- the annular rib 22 is more firmly pressed against the insulating coatings 12 and 16.
- the annular rib 22 provided on the inner layer 21 is elastically adhered to the insulating coatings 12 and 16 of the pair of electric wires 11 and 15. It is possible to prevent moisture from entering the wire connecting portion 18 side.
- the cylindrical member 20 has a two-layer structure, and the outer layer 23 is formed of a material having a hardness higher than that of the inner layer 21. Therefore, the annular rib 22 is firmly attached to the insulating coating 12 by the outer layer 23 which is not easily deformed. 16 can be pressed. And since the structure which winds the compression tape 25 further in the position where the annular rib 22 is provided, the sealing performance of the electric wire connection part 18 can be improved more.
- the electric wire connection processing work can be simplified.
- the aluminum electric wire and the copper electric wire are electrically connected by ultrasonic welding, but can be connected by any connection method such as cold welding, brazing, soldering, or the like.
- connection made of, for example, a copper alloy having a pair of wire barrels 41 for caulking the core wires 13 and 17 of the electric wires 11 and 15 and insulation barrels 42 for caulking the insulation coatings 12 and 16.
- the conductor 40 may be used for electrical connection, and in this case, the wire connecting portion 28 is waterproofed by bringing the annular rib 22 of the tubular member 20 into close contact with the insulating coatings 12 and 16 of the pair of wires 11 and 15. It can be a structure.
- the type of electric wire to be connected is not limited to the above embodiment, and can be applied to electric wires other than aluminum electric wires and copper electric wires. Moreover, it is good also as a structure which connects the same kind of electric wire.
- the core wire of the electric wire may be a single wire or a stranded wire formed by twisting a plurality of strands. Further, the conductor cross-sectional area, the insulator material, the thickness of the insulator, the wire diameter, etc. are not particularly limited.
- SYMBOLS 10 Waterproof structure 11: Aluminum electric wire 12, 16: Insulation coating 13, 17: Core wire 15: Copper electric wire 18, 28: Electric wire connection part 20: Cylindrical member 21: Inner layer 22: Annular rib 23: Outer layer 40: Connection conductor 41: Wire barrel
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- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
A waterproof structure for an electric wire connection is provided with: an electric wire connection in which core wires exposed from end parts of insulating coverings on a pair of electric wires are electrically connected to each other; a cylindrical member that covers altogether the electric wire connection and the end parts of the insulating coverings of the pair of electric wires; an inner layer provided in the cylindrical member and having ring-shaped ribs that protrude in a ring shape toward the inside and elastically adhere to the outer periphery of the insulating coverings of the pair of electric wires; and an outer layer, which is formed from a material with a higher hardness than the inner layer and is provided so as to overlap the outer periphery of the inner layer.
Description
本発明は、一対の電線の絶縁被覆の端部から露出された芯線同士が互いに電気的に接続された電線接続部の防水構造に関するものである。
The present invention relates to a waterproof structure of a wire connecting portion in which core wires exposed from the end portions of the insulation coating of a pair of wires are electrically connected to each other.
一対の電線を電気的に接続する場合には、電線の絶縁被覆の端部から露出された芯線同士を例えば超音波溶接やハンダ付けによって接続したり、接続用導体に圧着することによって接続する構造が知られている。このような構造では、芯線の接続部が外部に露出した状態となるため、短絡や腐食を防止するべく、接続部を絶縁体で被覆してシール状態とする必要がある。特に、異種金属の芯線同士を接続する場合には、接続部に雨水や結露などにより水分が付着すると、局部電池を形成して異種金属接触腐食が起こり易く、接続信頼性が低下する。
When electrically connecting a pair of electric wires, the core wires exposed from the ends of the insulation coating of the electric wires are connected to each other by, for example, ultrasonic welding or soldering, or by being crimped to a connecting conductor It has been known. In such a structure, since the connecting portion of the core wire is exposed to the outside, it is necessary to cover the connecting portion with an insulator to prevent a short circuit and corrosion. In particular, when connecting different types of core wires of different metals, if water adheres to the connection portion due to rain water or dew condensation, a local battery is easily formed, and different metal contact corrosion easily occurs, resulting in a decrease in connection reliability.
電線の接続部をシールする構造として、例えば特許文献１に記載されているものがある。このものは、一対の電線の絶縁被覆の外径とぼぼ同程度の大きさの内径を有するチューブ状の絶縁体によって一対の電線の接続部とその両端の絶縁被覆を被覆し、その後熱収縮させる構成である。
For example, Patent Document 1 discloses a structure for sealing a connection portion of an electric wire. In this case, the connecting portion of the pair of electric wires and the insulating coatings at both ends thereof are covered with a tubular insulator having an inner diameter approximately equal to the outer diameter of the insulating coating of the pair of electric wires, and then thermally contracted. It is a configuration.
しかしながら上記構成では、電線の絶縁被覆の端部および接続部を被覆した後に加熱を行う工程が必要であり、作業工数が多くなる。また、作業現場において加熱用工具を使用しなければならず、手間がかかる。
However, in the above configuration, a process of heating after covering the end portion and the connecting portion of the insulating coating of the electric wire is necessary, and the number of work steps increases. In addition, a heating tool must be used at the work site, which is troublesome.
本発明は上記のような事情に基づいて完成されたものであって、作業が簡単で、かつ、防水性が高い電線接続部の防水構造を提供することを目的とするものである。
The present invention has been completed based on the above-described circumstances, and an object thereof is to provide a waterproof structure for an electric wire connecting portion that is easy to work and highly waterproof.
本発明は、電線接続部の防水構造であって、一対の電線の絶縁被覆の端部から露出された芯線同士が互いに電気的に接続された電線接続部と、前記電線接続部および前記一対の電線の絶縁被覆の端部を一括に被覆する筒状部材と、前記筒状部材に設けられて、内側に向けて環状に突出して前記一対の電線の絶縁被覆の外周に弾性的に密着する環状リブを有する内層と、前記内層よりも硬度が高い材質で形成され前記内層の外周に重ねて設けられる外層と、備える。
The present invention is a waterproof structure of an electric wire connecting portion, wherein an electric wire connecting portion in which core wires exposed from ends of an insulating coating of a pair of electric wires are electrically connected to each other, the electric wire connecting portion, and the pair of electric wires A cylindrical member that collectively covers the end portions of the insulation coating of the electric wires, and an annular shape that is provided on the cylindrical member and protrudes in an annular shape toward the inside and elastically adheres to the outer periphery of the insulation coating of the pair of electric wires An inner layer having ribs, and an outer layer formed of a material having a higher hardness than the inner layer and provided on the outer periphery of the inner layer.
本発明の電線接続部の防水構造によれば、内層に設けられた環状リブが一対の電線の絶縁被覆に弾性的に密着するから、外部から電線接続部側に水分が浸入することを防止できる。
According to the waterproof structure of the electric wire connecting portion of the present invention, the annular rib provided in the inner layer is elastically adhered to the insulating coating of the pair of electric wires, so that moisture can be prevented from entering the electric wire connecting portion side from the outside. .
ところで、環状リブを構成する材料の硬度が比較的低い場合、環状リブが絶縁被覆によって簡単に押し広げられて防水性に十分な圧着強さを確保できないことが懸念される。この点、本発明の電線接続部の防水構造によれば、筒状部材は内層と外層とを備え、外層は内層よりも硬度が高い材質で形成される構成であるから、環状リブは変形し難い外層によって絶縁被覆にしっかりと押し付けられることとなり、電線接続部のシール性をより確実にすることができる。
By the way, when the hardness of the material constituting the annular rib is relatively low, there is a concern that the annular rib is easily spread by the insulating coating, so that sufficient crimping strength for waterproofness cannot be secured. In this respect, according to the waterproof structure of the electric wire connection portion of the present invention, the cylindrical member includes an inner layer and an outer layer, and the outer layer is formed of a material having a hardness higher than that of the inner layer. The hard outer layer is firmly pressed against the insulating coating, and the sealing property of the wire connection portion can be further ensured.
また、従来必要であった加熱処理工程を省略することができるので、電線の接続処理作業を簡素化することができる。
Also, since the heat treatment process that has been necessary in the past can be omitted, the wire connection processing work can be simplified.
さらに、一対の圧縮テープを外層のうち環状リブが形成された位置に巻回した場合には、環状リブをより強く絶縁被覆に押し付けることが可能となるため、電線接続部のシール性をより高めることが可能となる。
Further, when the pair of compression tapes are wound around the outer layer at a position where the annular rib is formed, the annular rib can be pressed more strongly against the insulating coating, thereby further improving the sealing performance of the electric wire connecting portion. It becomes possible.
電線接続部が、芯線をかしめるワイヤーバレルを備えた接続用導体によって芯線同士が接続されてなる場合には、ワイヤーバレルをかしめるという簡易な作業によって、芯線同士を接続することができる。
When the wire connecting portions are connected to each other by a connecting conductor having a wire barrel for caulking the core wire, the core wires can be connected by a simple operation of caulking the wire barrel.
本発明によれば、外部から電線接続部側に水分が浸入することを防止できる。
According to the present invention, it is possible to prevent moisture from entering the wire connecting portion side from the outside.
本発明の一実施形態を図１ないし図４によって説明する。図１は、本発明の一実施形態に係る電線接続部の防水構造を示す断面図である。
An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a cross-sectional view showing a waterproof structure of a wire connecting portion according to an embodiment of the present invention.
この電線接続部の防水構造１０は、電気的に接続されたアルミ電線１１と銅電線１５、より具体的には、アルミ電線１１の絶縁被覆１２の端部から露出されたアルミニウムまたはアルミニウム合金からなる芯線１３と、銅電線１５の絶縁被覆１６の端部から露出された銅または銅合金からなる芯線１７とが導通状態とされた電線接続部１８の周囲を、筒状部材２０によって一括に被覆するとともに、圧縮テープ２５により締め付けることによって、防水構造を構成したものである。
The waterproof structure 10 of the electric wire connection portion is made of an aluminum wire 11 and a copper wire 15 that are electrically connected, more specifically, aluminum or an aluminum alloy exposed from the end of the insulating coating 12 of the aluminum wire 11. A cylindrical member 20 collectively covers the periphery of the wire connection portion 18 in which the core wire 13 and the core wire 17 made of copper or a copper alloy exposed from the end portion of the insulation coating 16 of the copper wire 15 are in a conductive state. At the same time, a waterproof structure is formed by tightening with the compression tape 25.
筒状部材２０は、ゴム弾性を有する合成ゴムからなる内層２１と、この内層２１の外周に重ねて設けられて、内層２１よりも硬度が高いＰＢＴやＰＰからなる外層２３との２層構造とされている。この筒状部材２０は、二色成形により製造され、その内径は、電線１１，１５の絶縁被覆１２，１６の外径よりも若干大きめとされている。また、その長さは、電線接続部１８とその両端に位置する絶縁被覆１２，１６の端部付近を一括に覆うのに好適な長さとされている。
The cylindrical member 20 has a two-layer structure including an inner layer 21 made of synthetic rubber having rubber elasticity, and an outer layer 23 made of PBT or PP which is provided on the outer periphery of the inner layer 21 and has higher hardness than the inner layer 21. Has been. The cylindrical member 20 is manufactured by two-color molding, and the inner diameter thereof is slightly larger than the outer diameter of the insulating coatings 12 and 16 of the electric wires 11 and 15. Moreover, the length is set to a length suitable for collectively covering the vicinity of the ends of the electric wire connecting portion 18 and the insulating coatings 12 and 16 located at both ends thereof.
内層２１の両端部付近には、筒状部材２０の周方向に沿って内側に向けて環状に突出した環状リブ２２が、各二本ずつ形成されている。これらの環状リブ２２は、筒状部材２０が電線接続部１８の外周に装着された際に、その頂部が電線１１，１５の絶縁被覆１２，１６に押し付けられる程度の高さおよび位置に設定されている。
Near the both ends of the inner layer 21, two annular ribs 22 are formed, each projecting annularly inward along the circumferential direction of the cylindrical member 20. These annular ribs 22 are set to a height and a position such that when the tubular member 20 is mounted on the outer periphery of the electric wire connecting portion 18, the top portion is pressed against the insulating coatings 12 and 16 of the electric wires 11 and 15. ing.
また、圧縮テープ２５は例えば伸縮性を有する合成樹脂フィルムによって形成されており、筒状部材２０の外層２３に接する面には図示しない粘着層が設けられている。また、その幅は二本の環状の環状リブ２２，２２を覆うことが可能な幅に設定されており、外層２３の外周のうち上述した環状リブ２２に対応する位置に巻回されている。
The compression tape 25 is formed of, for example, a stretchable synthetic resin film, and an adhesive layer (not shown) is provided on the surface of the cylindrical member 20 that is in contact with the outer layer 23. Moreover, the width | variety is set to the width | variety which can cover the two cyclic | annular annular ribs 22 and 22, and it is wound by the position corresponding to the cyclic | annular rib 22 mentioned above among the outer periphery of the outer layer 23. FIG.
本実施形態の電線接続部の防水構造１０は上述した通りであり、次に、筒状部材２０の装着方法を説明する。
まず、アルミ電線１１および銅電線１５の端部付近の絶縁被覆１２，１６を皮剥して、芯線１３，１７を露出させる。そして、図２に示すように、一方の電線（ここではアルミ電線１１）を筒状部材２０に挿通させ、筒状部材２０全体が絶縁被覆１２を覆う待避位置とした後、芯線１３，１７同士を束ねてアンビル上３０に載置し、溶接用のホーン３１を当接させて超音波振動を与える。ホーン３１が高周波振動するのに伴い、芯線１３，１７が摩擦により加熱され、芯線１３，１７同士が接合して電気的に接続状態とされる（図３参照）。 Thewaterproof structure 10 of the electric wire connection part of this embodiment is as having mentioned above, Next, the mounting method of the cylindrical member 20 is demonstrated.
First, the insulation coatings 12 and 16 near the ends of the aluminum wire 11 and the copper wire 15 are peeled off to expose the core wires 13 and 17. Then, as shown in FIG. 2, after one of the electric wires (in this case, the aluminum electric wire 11) is inserted into the cylindrical member 20 and the entire cylindrical member 20 is in a retracted position covering the insulating coating 12, the core wires 13 and 17 are connected to each other. Are bundled and placed on the anvil 30 and a welding horn 31 is brought into contact therewith to apply ultrasonic vibration. As the horn 31 vibrates at a high frequency, the core wires 13 and 17 are heated by friction, and the core wires 13 and 17 are joined and electrically connected (see FIG. 3).
まず、アルミ電線１１および銅電線１５の端部付近の絶縁被覆１２，１６を皮剥して、芯線１３，１７を露出させる。そして、図２に示すように、一方の電線（ここではアルミ電線１１）を筒状部材２０に挿通させ、筒状部材２０全体が絶縁被覆１２を覆う待避位置とした後、芯線１３，１７同士を束ねてアンビル上３０に載置し、溶接用のホーン３１を当接させて超音波振動を与える。ホーン３１が高周波振動するのに伴い、芯線１３，１７が摩擦により加熱され、芯線１３，１７同士が接合して電気的に接続状態とされる（図３参照）。 The
First, the
電線１１，１６が電気的に接続状態とされた後、待避位置にある筒状部材２０を電線接続部１８側に引っ張って、電線接続部１８とその両端に位置する電線１１，１５の絶縁被覆１２，１６を一括に覆う位置まで移動させる。すると、図１に示すように、筒状部材２０の内層２１の両端部付近に設けられた環状リブ２２が電線１１，１５の絶縁被覆１２，１６に弾性的に押し付けられた状態となり、電線接続部１８を外部から遮断した状態とする。さらに、このように筒状部材２０が所望の位置に装着された後、筒状部材２０の両端部付近のうち、環状リブ２２に対応する部分に、圧縮テープ２５を引き延ばしつつ巻回する（図４参照）。この圧縮テープ２５により、環状リブ２２はよりしっかりと絶縁被覆１２，１６に押し付けられることとなる。
After the electric wires 11 and 16 are electrically connected, the tubular member 20 in the retracted position is pulled to the electric wire connecting portion 18 side, and the insulation covering of the electric wire connecting portion 18 and the electric wires 11 and 15 located at both ends thereof is performed. It moves to the position which covers 12 and 16 collectively. Then, as shown in FIG. 1, the annular ribs 22 provided near both ends of the inner layer 21 of the cylindrical member 20 are elastically pressed against the insulating coatings 12 and 16 of the electric wires 11 and 15. The part 18 is in a state of being shut off from the outside. Further, after the cylindrical member 20 is mounted in a desired position in this manner, the compression tape 25 is wound around the portion corresponding to the annular rib 22 in the vicinity of both ends of the cylindrical member 20 while being stretched (see FIG. 4). By this compression tape 25, the annular rib 22 is more firmly pressed against the insulating coatings 12 and 16.
このような本実施形態の電線接続部１８の防水構造によれば、内層２１に設けられた環状リブ２２が一対の電線１１，１５の絶縁被覆１２，１６に弾性的に密着するから、外部から電線接続部１８側に水分が浸入することを防止できる。しかも、筒状部材２０は二層構造とされており、外層２３は内層２１よりも硬度が高い材質で形成されているから、変形し難い外層に２３よって環状リブ２２をしっかりと絶縁被覆１２，１６に押し付けることが可能である。しかも、環状リブ２２が設けられている位置には圧縮テープ２５をさらに巻回する構成であるから、電線接続部１８のシール性をより高めることができる。
According to the waterproof structure of the electric wire connection portion 18 of this embodiment, the annular rib 22 provided on the inner layer 21 is elastically adhered to the insulating coatings 12 and 16 of the pair of electric wires 11 and 15. It is possible to prevent moisture from entering the wire connecting portion 18 side. In addition, the cylindrical member 20 has a two-layer structure, and the outer layer 23 is formed of a material having a hardness higher than that of the inner layer 21. Therefore, the annular rib 22 is firmly attached to the insulating coating 12 by the outer layer 23 which is not easily deformed. 16 can be pressed. And since the structure which winds the compression tape 25 further in the position where the annular rib 22 is provided, the sealing performance of the electric wire connection part 18 can be improved more.
また、このような本実施形態の電線接続部の防水構造１０によれば、従来必要であった加熱処理工程を省略することができるので、電線の接続処理作業を簡素化することができる。
Moreover, according to the waterproof structure 10 of the electric wire connection part of this embodiment, since the heat treatment step that has been conventionally required can be omitted, the electric wire connection processing work can be simplified.
＜他の実施形態＞
本発明は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施形態も本発明の技術的範囲に含まれる。 <Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
本発明は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施形態も本発明の技術的範囲に含まれる。 <Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
（１）上記実施形態では、アルミ電線と銅電線とを超音波溶接により電気的に接続する構成としたが、冷間圧接、ろう接、はんだ付け等、任意の接続方法により接続することができる。例えば、図５に示すように、電線１１，１５の芯線１３，１７をかしめるワイヤーバレル４１、および、絶縁被覆１２，１６をかしめるインシュレーションバレル４２を一対ずつ有する例えば銅合金からなる接続用導体４０を使用して導通させる構成としてもよく、この場合も、一対の電線１１，１５の絶縁被覆１２，１６に筒状部材２０の環状リブ２２を密着させることにより、電線接続部２８を防水構造とすることができる。
(1) In the above embodiment, the aluminum electric wire and the copper electric wire are electrically connected by ultrasonic welding, but can be connected by any connection method such as cold welding, brazing, soldering, or the like. . For example, as shown in FIG. 5, for connection made of, for example, a copper alloy having a pair of wire barrels 41 for caulking the core wires 13 and 17 of the electric wires 11 and 15 and insulation barrels 42 for caulking the insulation coatings 12 and 16. The conductor 40 may be used for electrical connection, and in this case, the wire connecting portion 28 is waterproofed by bringing the annular rib 22 of the tubular member 20 into close contact with the insulating coatings 12 and 16 of the pair of wires 11 and 15. It can be a structure.
（２）接続する電線の種類は上記実施形態に限らず、アルミ電線や銅電線以外の電線にも適用することができる。また、同種類の電線を接続する構成としても良い。
(2) The type of electric wire to be connected is not limited to the above embodiment, and can be applied to electric wires other than aluminum electric wires and copper electric wires. Moreover, it is good also as a structure which connects the same kind of electric wire.
（３）電線の芯線は、単線であっても良いし、複数の素線を撚り合わせてなる撚線であっても良い。また、導体断面積、絶縁体材料、絶縁体の厚み、電線径などは特に限定されるものではない。
(3) The core wire of the electric wire may be a single wire or a stranded wire formed by twisting a plurality of strands. Further, the conductor cross-sectional area, the insulator material, the thickness of the insulator, the wire diameter, etc. are not particularly limited.
１０：防水構造
１１：アルミ電線
１２、１６：絶縁被覆
１３，１７：芯線
１５：銅電線
１８，２８：電線接続部
２０：筒状部材
２１：内層
２２：環状リブ
２３：外層
４０：接続用導体
４１：ワイヤーバレル DESCRIPTION OF SYMBOLS 10: Waterproof structure 11: Aluminumelectric wire 12, 16: Insulation coating 13, 17: Core wire 15: Copper electric wire 18, 28: Electric wire connection part 20: Cylindrical member 21: Inner layer 22: Annular rib 23: Outer layer 40: Connection conductor 41: Wire barrel
１１：アルミ電線
１２、１６：絶縁被覆
１３，１７：芯線
１５：銅電線
１８，２８：電線接続部
２０：筒状部材
２１：内層
２２：環状リブ
２３：外層
４０：接続用導体
４１：ワイヤーバレル DESCRIPTION OF SYMBOLS 10: Waterproof structure 11: Aluminum
Claims (3)
- 一対の電線の絶縁被覆の端部から露出された芯線同士が互いに電気的に接続された電線接続部と、
前記電線接続部および前記一対の電線の絶縁被覆の端部を一括に被覆する筒状部材と、
前記筒状部材に設けられて、内側に向けて環状に突出して前記一対の電線の絶縁被覆の外周に弾性的に密着する環状リブを有する内層と、
前記内層よりも硬度が高い材質で形成され前記内層の外周に重ねて設けられる外層と、
を備える電線接続部の防水構造。 A wire connecting portion in which core wires exposed from the ends of the insulation coating of the pair of wires are electrically connected to each other;
A tubular member that collectively covers the ends of the insulation coating of the wire connection portion and the pair of wires; and
An inner layer provided on the cylindrical member and having an annular rib that protrudes in an annular shape toward the inside and elastically adheres to the outer periphery of the insulating coating of the pair of electric wires;
An outer layer formed of a material having a higher hardness than the inner layer and provided on the outer periphery of the inner layer;
The waterproof structure of the electric wire connection part provided with. - 前記外層のうち前記環状リブが形成された位置に巻回されて前記環状リブを前記一対の電線の前記絶縁被覆に押し付けるための一対の圧縮テープをさらに備える請求項１に記載の電線接続部の防水構造。 The wire connecting portion according to claim 1, further comprising a pair of compression tapes wound around the outer layer at a position where the annular rib is formed and pressing the annular rib against the insulating coating of the pair of electric wires. Waterproof structure.
- 前記電線接続部は、前記芯線をかしめるワイヤーバレルを備えた接続用導体によって前記芯線同士が接続されてなる請求項１または請求項２に記載の電線接続部の防水構造。 The said electric wire connection part is a waterproof structure of the electric wire connection part of Claim 1 or Claim 2 by which the said core wires are connected by the conductor for a connection provided with the wire barrel which caulks the said core wire.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012099883A JP2013229165A (en) | 2012-04-25 | 2012-04-25 | Waterproof structure of electric wire connecting portion |
| JP2012-099883 | 2012-04-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2013161117A1 true WO2013161117A1 (en) | 2013-10-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2012/081333 WO2013161117A1 (en) | 2012-04-25 | 2012-12-04 | Waterproof structure for electric wire connection |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2013229165A (en) |
| WO (1) | WO2013161117A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56138478U (en) * | 1980-03-21 | 1981-10-20 | ||
| JPS59181590U (en) * | 1983-05-20 | 1984-12-04 | 名伸電機株式会社 | Chuck type sleeve cover |
| JPS60183371U (en) * | 1984-05-11 | 1985-12-05 | 古河電気工業株式会社 | Boots for connectors |
| JPH01172264U (en) * | 1988-05-26 | 1989-12-06 | ||
| JPH0479171A (en) * | 1990-07-19 | 1992-03-12 | Hitachi Constr Mach Co Ltd | Connecting fixture for wire |
-
2012
- 2012-04-25 JP JP2012099883A patent/JP2013229165A/en active Pending
- 2012-12-04 WO PCT/JP2012/081333 patent/WO2013161117A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56138478U (en) * | 1980-03-21 | 1981-10-20 | ||
| JPS59181590U (en) * | 1983-05-20 | 1984-12-04 | 名伸電機株式会社 | Chuck type sleeve cover |
| JPS60183371U (en) * | 1984-05-11 | 1985-12-05 | 古河電気工業株式会社 | Boots for connectors |
| JPH01172264U (en) * | 1988-05-26 | 1989-12-06 | ||
| JPH0479171A (en) * | 1990-07-19 | 1992-03-12 | Hitachi Constr Mach Co Ltd | Connecting fixture for wire |
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| JP2013229165A (en) | 2013-11-07 |
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