JP6799777B2 - Insulated wire - Google Patents
Insulated wire Download PDFInfo
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- JP6799777B2 JP6799777B2 JP2016125426A JP2016125426A JP6799777B2 JP 6799777 B2 JP6799777 B2 JP 6799777B2 JP 2016125426 A JP2016125426 A JP 2016125426A JP 2016125426 A JP2016125426 A JP 2016125426A JP 6799777 B2 JP6799777 B2 JP 6799777B2
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- layer
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- tape
- coating layer
- insulated wire
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/14—Insulating conductors or cables by extrusion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/20—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances liquids, e.g. oils
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Insulated Conductors (AREA)
Description
本発明は、配電盤等に用いられる絶縁電線に関する。 The present invention relates to an insulated electric wire used for a switchboard or the like.
配電盤内用電線として集合撚線導体に架橋ポリエチレン絶縁体が被覆された電線が使われており、盤内で電線が曲げられた状態で敷設されている。 An electric wire in which a cross-linked polyethylene insulator is coated on a collective stranded conductor is used as an electric wire for the inside of a switchboard, and the electric wire is laid in a bent state in the panel.
絶縁電線について、種々の技術が提案されている（例えば特許文献１参照）。 Various techniques have been proposed for insulated wires (see, for example, Patent Document 1).
近年、配電盤の小型化に伴い、配線スペースも限られるようになり、より狭いスペースでも配線ができるように、より小さな力で曲げることができる、可撓性に優れた絶縁電線が求められている。
そこで、本発明の目的は、より小さな力で曲げて配線することができる、可撓性に優れた絶縁電線を提供することにある。
In recent years, with the miniaturization of switchboards, the wiring space has become limited, and there is a demand for an insulated wire having excellent flexibility that can be bent with a smaller force so that wiring can be performed even in a narrower space. ..
Therefore, an object of the present invention is to provide an insulated wire having excellent flexibility, which can be bent and wired with a smaller force.
本発明の要旨は以下のとおりである。 The gist of the present invention is as follows.
[１]導体と、前記導体の外周にテープを巻き付けて形成されたテープ層と、前記テープ層の外周に設けられた被覆層とを備え、前記導体と前記テープ層との間には滑材層が設けられていることを特徴とする絶縁電線。
[２]前記被覆層は、充実押出しにより形成される充実押出層からなり、前記テープ層と前記被覆層とは接着している[１]に記載の絶縁電線。
[３]前記滑材層はシリコーンオイルからなり、前記テープ層はポリエチレンテレフタレートテープからなり、前記充実押出層は架橋ポリエチレンからなる[２]に記載の絶縁電線
が提供される。
[1] A conductor, a tape layer formed by winding a tape around the outer periphery of the conductor, and a coating layer provided on the outer periphery of the tape layer are provided, and a lubricant is provided between the conductor and the tape layer. An insulated wire characterized by being provided with layers.
[2] The insulated wire according to [1], wherein the coating layer is composed of a solid extrusion layer formed by solid extrusion, and the tape layer and the coating layer are adhered to each other.
[3] The insulated wire according to [2] is provided, wherein the lubricant layer is made of silicone oil, the tape layer is made of polyethylene terephthalate tape, and the solid extruded layer is made of cross-linked polyethylene.
本発明によれば、より小さな力で曲げて配線することができる、可撓性に優れた電線を提供することができる。 According to the present invention, it is possible to provide an electric wire having excellent flexibility, which can be bent and wired with a smaller force.
（絶縁電線）
図１は、本発明の実施の形態に係る絶縁電線の構造を示す斜視図である。
(Insulated wire)
FIG. 1 is a perspective view showing a structure of an insulated electric wire according to an embodiment of the present invention.
図１に示される本発明の実施の形態に係る絶縁電線１０は、複数本の素線を撚り合せた導体１と、導体１の外周にテープを巻き付けて形成されたテープ層２と、テープ層２の外周に設けられた被覆層３とを備え、導体１とテープ層２の間には、滑材層（図示なし）が設けられている。 The insulated wire 10 according to the embodiment of the present invention shown in FIG. 1 includes a conductor 1 obtained by twisting a plurality of strands, a tape layer 2 formed by winding a tape around the outer circumference of the conductor 1, and a tape layer. A coating layer 3 provided on the outer periphery of the 2 is provided, and a lubricant layer (not shown) is provided between the conductor 1 and the tape layer 2.
（導体１)
導体１は、例えば軟銅線や銅合金からなる素線を撚り合わせた集合撚線導体からなる。この素線や集合撚線導体にはＳｎめっき等のめっきが施されていても良い。
(Conductor 1)
The conductor 1 is made of, for example, an aggregate stranded conductor obtained by twisting strands made of annealed copper wire or a copper alloy. The wire or the collective stranded conductor may be plated with Sn plating or the like.
（テープ層２）
テープ層２は、絶縁性のテープをその両端が重なるように縦添えして形成しても良いし、絶縁性のテープを重ねラップ巻きして形成しても良い。このテープ層２は、端末処理時に導体１と被覆層３とを分離するためのセパレータとして機能する。
(Tape layer 2)
The tape layer 2 may be formed by vertically attaching an insulating tape so that both ends thereof overlap, or may be formed by lapping and wrapping an insulating tape. The tape layer 2 functions as a separator for separating the conductor 1 and the coating layer 3 during terminal processing.
テープ層２の絶縁性テープとしては、被覆層３を充実押出しにより形成する際の熱と圧力によって、テープ層２が被覆層３に接着し易い材料が好ましく、例えばポリエチレンテレフタレート（ＰＥＴ）テープが好ましい。また、加熱圧着による接着が可能なホットメルト接着剤からなるホットメルト接着層を、絶縁性テープの外面（被覆層３に面する側）に設けたホットメルト接着層付き絶縁性テープを用いることもできる。テープの厚みは、１０μｍ〜５０μｍが好ましい。 As the insulating tape of the tape layer 2, a material in which the tape layer 2 easily adheres to the coating layer 3 due to heat and pressure when the coating layer 3 is formed by full extrusion is preferable, and for example, polyethylene terephthalate (PET) tape is preferable. .. It is also possible to use an insulating tape with a hot melt adhesive layer provided on the outer surface (the side facing the coating layer 3) of the insulating tape with a hot melt adhesive layer made of a hot melt adhesive that can be bonded by heat pressure bonding. it can. The thickness of the tape is preferably 10 μm to 50 μm.
(滑材層)
テープ層２と導体１との間には、シリコーンオイル、フッ素オイルまたはタルク等からなる滑材層が設けられている。導体１上に滑材層を形成してから、絶縁性テープを巻き付けてテープ層２を形成しても良いし、絶縁性テープの片面に予め滑材層を形成してから、導体１に巻き付けてテープ層２を形成しても良い。
(Glidant layer)
A lubricant layer made of silicone oil, fluorine oil, talc, or the like is provided between the tape layer 2 and the conductor 1. The lubricant layer may be formed on the conductor 1 and then the insulating tape may be wound to form the tape layer 2, or the lubricant layer may be formed on one side of the insulating tape in advance and then wound around the conductor 1. The tape layer 2 may be formed.
この滑材層は、上述の被覆層３を充実押出しする際に、導体１とテープ層２とが接着することを防止する。これにより、導体１とテープ層２とが接着しておらず、かつ界面において滑るので、絶縁電線から被覆層３及びテープ層２を除去して導体１を露出させる端末処理が容易である。 This lubricant layer prevents the conductor 1 and the tape layer 2 from adhering to each other when the coating layer 3 is fully extruded. As a result, the conductor 1 and the tape layer 2 are not adhered to each other and slip at the interface, so that the terminal treatment for removing the coating layer 3 and the tape layer 2 from the insulated wire to expose the conductor 1 is easy.
また、絶縁電線１０を曲げた際に、導体１とテープ層２との界面で滑りが生じるので、導体１と被覆層３との間で抵抗が少なく、小さい力で曲げ易くなる。つまり、導体１は、被覆層３から曲げに抵抗する力を受け難くなり、少ない曲げ抵抗で曲がることになり、可撓性が向上する。 Further, when the insulated wire 10 is bent, slippage occurs at the interface between the conductor 1 and the tape layer 2, so that there is little resistance between the conductor 1 and the coating layer 3, and it becomes easy to bend with a small force. That is, the conductor 1 is less likely to receive a bending resistance force from the coating layer 3, and is bent with a small bending resistance, so that the flexibility is improved.
（被覆層３）
絶縁電線１０は、テープ層２の直上に、被覆層３が設けられている。この被覆層３は、充実押出しにより形成される充実押出層からなる。この被覆層３の充実押出し被覆の際に、被覆層３となる溶融樹脂の熱により被覆層３とテープ層２とが接着し、圧力により溶融樹脂が導体１の素線間の間隙にテープ層２を介して押し込まれる。従って、被覆層３の内面は、導体１を構成する素線の形状に対応したパターンが転写されて、溝が形成されている。
(Coating layer 3)
The insulating electric wire 10 is provided with a coating layer 3 directly above the tape layer 2. The coating layer 3 is composed of a solid extrusion layer formed by solid extrusion. During the full extrusion coating of the coating layer 3, the coating layer 3 and the tape layer 2 are adhered by the heat of the molten resin to be the coating layer 3, and the molten resin is formed into the gap between the strands of the conductor 1 by the pressure. It is pushed through 2. Therefore, a groove is formed on the inner surface of the coating layer 3 by transferring a pattern corresponding to the shape of the wire forming the conductor 1.
この被覆層３は、例えば架橋ポリエチレン絶縁体によって形成され、厚さは、０．５ｍｍ〜３ｍｍが好ましい。 The coating layer 3 is formed of, for example, a cross-linked polyethylene insulator, and the thickness is preferably 0.5 mm to 3 mm.
本実施の形態によれば、以下の作用、効果を奏する。
（１）導体１とテープ層２との間には、滑り性に優れた滑材層が設けられているので、被覆層３を充実押出しにより形成しても、導体１とテープ層２との密着（接着）が防止されると共に、導体１からテープ層２を除去し易い。
（２）絶縁電線は、滑り性に優れた滑材層を備えているので、絶縁電線１０を曲げた際に、導体１は被覆層３から曲げに抵抗する力を受け難くなり、少ない曲げ抵抗で曲がることになり、絶縁電線１０の可撓性は向上する。
（３）テープ層２は、被覆層３と接着しているので、被覆層３を除去する際にテープ層２も同時に除去することができる。
According to this embodiment, the following actions and effects are exhibited.
(1) Since a lubricant layer having excellent slipperiness is provided between the conductor 1 and the tape layer 2, even if the coating layer 3 is formed by full extrusion, the conductor 1 and the tape layer 2 can be separated from each other. Adhesion (adhesion) is prevented, and the tape layer 2 can be easily removed from the conductor 1.
(2) Since the insulated wire has a lubricant layer having excellent slipperiness, when the insulated wire 10 is bent, the conductor 1 is less likely to receive a force to resist bending from the coating layer 3, and the bending resistance is small. The flexibility of the insulated wire 10 is improved.
(3) Since the tape layer 2 is adhered to the coating layer 3, the tape layer 2 can be removed at the same time when the coating layer 3 is removed.
以下、実施例をあげて本発明をさらに具体的に説明する。 Hereinafter, the present invention will be described in more detail with reference to examples.
（実施例１）
まず、厚さ２３μｍ、幅５５ｍｍのＰＥＴ基材の片面にシリコーンオイルを塗布し、滑材層付のＰＥＴテープを用意した。公称断面積１００ＳＱ（導体構成１９／３４／０．４５）の集合撚線導体からなる導体１に、この滑材層付のＰＥＴテープを、導体１側に滑材層が面するように重ねラップで巻き、テープ層２を形成した。最後に、架橋ポリエチレンからなる、厚さ２ｍｍの被覆層３を充実に押出被覆し、外径約１７．７ｍｍの絶縁電線１０を作製した。
(Example 1)
First, silicone oil was applied to one side of a PET substrate having a thickness of 23 μm and a width of 55 mm, and a PET tape with a lubricant layer was prepared. A PET tape with a lubricant layer is laminated on a conductor 1 composed of a collective stranded conductor having a nominal cross-sectional area of 100 SQ (conductor configuration 19/34 / 0.45) so that the lubricant layer faces the conductor 1 side. The tape layer 2 was formed by winding with. Finally, a coating layer 3 having a thickness of 2 mm and made of cross-linked polyethylene was fully extruded and coated to prepare an insulated wire 10 having an outer diameter of about 17.7 mm.
（比較例１）
公称断面積１００ＳＱ（導体構成１９／３４／０．４５）の集合撚線導体からなる導体に、架橋ポリエチレンからなる、厚さ２ｍｍの被覆層を充実に押出被覆し、外径約１７．７ｍｍの絶縁電線を作製した。
(Comparative Example 1)
A conductor made of aggregate stranded conductor with a nominal cross-sectional area of 100 SQ (conductor configuration 19/34 / 0.45) is fully extruded and coated with a coating layer having a thickness of 2 mm made of cross-linked polyethylene and having an outer diameter of about 17.7 mm. An insulated wire was manufactured.
（可撓性試験）
可撓性試験は、一端を基台に固定し、他端を５００ｍｍ張り出させた片持ち梁の状態に絶縁電線をセットし、その他端（自由端）に錘を載せて行った。所定のたわみ量となるのに必要な錘の重量で比較したところ、実施例１の絶縁電線の方がより少ない重量（より小さな力）でたわむことを確認し、可撓性に優れていることを確認した。
(Flexibility test)
The flexibility test was carried out by setting an insulated wire in a state of a cantilever with one end fixed to a base and the other end protruding 500 mm, and placing a weight on the other end (free end). When compared with the weight of the weight required to achieve the predetermined amount of deflection, it was confirmed that the insulated wire of Example 1 bends with a smaller weight (smaller force), and it is excellent in flexibility. It was confirmed.
なお、本発明は、上記実施の形態に限定されず種々に変形実施が可能である。 The present invention is not limited to the above embodiment, and various modifications can be made.
１０：絶縁電線
１：導体、２：テープ層、３：被覆層
10: Insulated wire 1: Conductor 2: Tape layer 3: Coating layer
Claims (1)
前記導体と前記テープ層との間には滑材層が設けられており、
前記被覆層は、前記導体の前記素線間の間隙に前記テープ層を介して押し込まれて前記テープ層に接着しており、前記被覆層の内面に前記導体を構成する前記素線の形状に対応した溝を有することを特徴とする絶縁電線。 A conductor obtained by twisting a plurality of strands, a tape layer formed by winding a tape around the outer periphery of the conductor, and a coating layer provided on the outer periphery of the tape layer are provided.
A lubricant layer is provided between the conductor and the tape layer.
The coating layer is pushed into the gap between the strands of the conductor via the tape layer and adheres to the tape layer, and has the shape of the strands constituting the conductor on the inner surface of the coating layer. An insulated wire characterized by having a corresponding groove.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016125426A JP6799777B2 (en) | 2016-06-24 | 2016-06-24 | Insulated wire |
| KR1020170078298A KR102365892B1 (en) | 2016-06-24 | 2017-06-21 | Insulated wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016125426A JP6799777B2 (en) | 2016-06-24 | 2016-06-24 | Insulated wire |
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| Publication Number | Publication Date |
|---|---|
| JP2017228487A JP2017228487A (en) | 2017-12-28 |
| JP6799777B2 true JP6799777B2 (en) | 2020-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2016125426A Active JP6799777B2 (en) | 2016-06-24 | 2016-06-24 | Insulated wire |
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| JP (1) | JP6799777B2 (en) |
| KR (1) | KR102365892B1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4829111B1 (en) * | 1969-05-02 | 1973-09-07 | ||
| JP5159132B2 (en) | 2007-03-20 | 2013-03-06 | 株式会社潤工社 | Flat cable |
| JP6044418B2 (en) * | 2013-03-27 | 2016-12-14 | 三菱マテリアル株式会社 | Surge absorber and manufacturing method thereof |
| JP2015187956A (en) * | 2014-03-27 | 2015-10-29 | 株式会社フジクラ | cable |
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| Publication number | Publication date |
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| KR102365892B1 (en) | 2022-02-21 |
| JP2017228487A (en) | 2017-12-28 |
| KR20180001468A (en) | 2018-01-04 |
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