JPH0569819U - Tape tape for electric wire - Google Patents

Abstract

(57)【要約】 【目的】露出された接地用ドレンワイヤ−との電気的導
通、電磁波シ−ルド効果の安定化とテ−プ電線への縦添
え重ね部での隙間発生の防止を共に満足に行ない得るテ
−プ電線用シ−ルドテ−プを提供する。 【構成】絶縁テ−プ間に平行配列の信号伝送用導体と接
地用ドレンワイヤ−とを有するテ−プ電線の接地用ドレ
ンワイヤ−を、絶縁テ−プを開口することにより露出さ
せ、片面に接着層を有するシ−ルドテ−プを、接着層を
内側にして上記テ−プ電線に縦添えし、シ−ルドテ−プ
と接地用ドレンワイヤ−とを加圧接着により電気的に導
通させるシ−ルドテ−プ付きテ−プ電線のシ−ルドテ−
プにおいて、接着層を発泡させたことを特徴とする。 (57) [Abstract] [Purpose] Satisfies both electrical continuity with the exposed drain wire for grounding, stabilization of the electromagnetic shield effect, and prevention of the occurrence of gaps in the vertical stacking part of tape wires. Provided is a shielded tape for electric wire. [Structure] A grounding drain wire of a tape electric wire having a signal transmission conductor and a grounding drain wire arranged in parallel between the insulating tapes is exposed by opening the insulating tape, and is bonded to one surface. A shield tape having a layer is vertically attached to the tape electric wire with an adhesive layer inside, and the shield tape and the drain wire for grounding are electrically connected by pressure adhesion. -Taped wire shielded tape
In this case, the adhesive layer is foamed.

Description

【考案の詳細な説明】[Detailed description of the device] 【産業上の利用分野】[Industrial application]

【０００１】 本考案は信号伝送用のテ−プ電線の電磁波シ−ルドに使用するシ−ルドテ−プ に関するものである。The present invention relates to a shield tape used for an electromagnetic wave shield of a tape wire for signal transmission.

【０００２】[0002]

【従来の技術】[Prior Art]

電子機器類のプリント基板間を接続する電線には、テ−プ電線が広く使用され ているが、通常、外来ノイズの防止のために、電磁波シ−ルドを施すことが必要 である。 Tape electric wires are widely used as electric wires for connecting printed circuit boards of electronic devices, but it is usually necessary to provide electromagnetic shielding to prevent external noise.

【０００３】 而して、図３に示すように、テ−プ電線Ｂ’の平行導体６’，…の一本６１’ を接地用ドレンワイヤ−とし、この接地用ドレンワイヤ−６１’をテ−プ電線Ｂ ’の絶縁テ−プ５’の開口により露出させ、片面に接着層４’を有するシ−ルド テ−プＡ’を接着層４’を内側にしてテ−プ電線Ｂ’に縦添えし、接地用ドレン ワイヤ−６１’とシ−ルドテ−プＡ’との間をプレス等により加圧して電気的に 導通させ、接地用ドレンワイヤ−６１’を接地することによりテ−プシ−ルド層 を接地電位に保持することが公知である。Then, as shown in FIG. 3, one of the parallel conductors 6 ', ... Of the tape electric wire B'is a grounding drain wire, and the grounding drain wire 61' is a tape. A shield tape A'having an adhesive layer 4'on one side is exposed by an opening of an insulating tape 5'of the electric wire B'and the adhesive wire 4'is vertically attached to the tape electric wire B '. Then, a pressure is applied between the grounding drain wire 61 'and the shield tape A'by a press or the like to establish electrical continuity, and the grounding drain wire 61' is grounded to form the tape shield layer. Is known to be held at ground potential.

【０００４】[0004]

【考案が解決しようとする課題】[Problems to be solved by the device]

上記において、シ−ルドテ−プＡ’の接着層４’を厚くすると、接地用ドレン ワイヤ−６１’とシ−ルドテ−プＡ’との間に上記の加圧にもかかわらず接着剤 ４’が多量に残って電気的導通を確保し難く、電磁波シ−ルド効果の低下が避け られない。このため、シ−ルドテ−プＡ’の接着剤４’の厚みを薄くすることが 要求される。 In the above, if the adhesive layer 4'of the shield tape A'is thickened, the adhesive 4'becomes between the ground drain wire 61 'and the shield tape A'despite the above pressure. Remains in a large amount, and it is difficult to secure electrical continuity, and a decrease in the electromagnetic shield effect cannot be avoided. Therefore, it is required to reduce the thickness of the adhesive 4'of the shield tape A '.

【０００５】 しかし、接着層４’を薄くすると、図３におけるシ−ルドテ−プの縦添え重ね 部のテ−プ端段差ａ’を接着剤で埋め得ずに隙間が残存し、接着界面が局部的に 剥離した状態となって、テ−プ電線Ｂ’の屈曲の繰返しにより、シ−ルドテ−プ Ａ’の縦添え重ね部が早期に剥離し易い。また、導体とシ−ルド材である金属と の間の距離の均一化保持が困難であり、電磁波シ−ルド効果、特に電気機器等か ら生じる低周波ノイズのシ−ルド効果が損なわれ易い。However, when the adhesive layer 4 ′ is thinned, the tape end step a ′ of the vertically attached overlapping portion of the shield tape in FIG. 3 cannot be filled with the adhesive and a gap remains, so that the adhesive interface is formed. When the tape electric wire B ′ is repeatedly bent, the vertically attached overlapping portion of the shield tape A ′ is easily peeled off early. Further, it is difficult to keep the distance between the conductor and the metal, which is the shield material, uniform, and the electromagnetic wave shield effect, especially the shield effect of low-frequency noise generated from electrical equipment is likely to be impaired. .

【０００６】 このように、上記テ−プ電線のシ−ルドに使用する接着式シ−ルドテ−プにお いては、接着層厚みに関する上記の相反する条件を充足し得ない。As described above, in the adhesive shield tape used for the shield of the tape electric wire, the above-mentioned contradictory conditions regarding the thickness of the adhesive layer cannot be satisfied.

【０００７】 本考案の目的は、露出された接地用ドレンワイヤ−との電気的導通、電磁波シ −ルド効果の安定化とテ−プ電線への縦添え重ね部での隙間発生の防止を共に満 足に行ない得るテ−プ電線用シ−ルドテ−プを提供することにある。The object of the present invention is to achieve electrical continuity with an exposed drain wire for grounding, stabilization of the electromagnetic shield effect, and prevention of the occurrence of gaps in the vertical splicing and stacking portion of tape wires. It is an object to provide a shield tape for a tape electric wire which can be carried on a foot.

【０００８】[0008]

【課題を解決するための手段】[Means for Solving the Problems]

本考案のテ−プ電線用シ−ルドテ−プは絶縁テ−プ間に平行配列の信号伝送用 導体と接地用ドレンワイヤ−とを有するテ−プ電線の接地用ドレンワイヤ−を、 絶縁テ−プを開口することにより露出させ、片面に接着層を有するシ−ルドテ− プを、接着層を内側にして上記テ−プ電線に縦添えし、シ−ルドテ−プと接地用 ドレンワイヤ−とを加圧接着により電気的に導通させるシ−ルドテ−プ付きテ− プ電線のシ−ルドテ−プにおいて、接着層を発泡させたことを特徴とする構成で ある。 The tape electric wire shield tape of the present invention is a tape electric wire grounding drain wire having a signal transmission conductor and a grounding drain wire arranged in parallel between the insulating tapes. A shield tape having an adhesive layer on one side is exposed vertically, and the shield tape and the drain wire for grounding are added by vertically attaching the shield tape with the adhesive layer on the inside. In a shield tape of a tape electric wire with a shield tape which is electrically conducted by pressure bonding, an adhesive layer is foamed.

【０００９】[0009]

【作用】[Action]

シ−ルドテ−プの単位面積当たりの接着剤量が少なくても、発泡のために接着 層の厚みを充分に厚くでき、シ−ルドテ−プ縦添え重ね部のテ−プ端段差を発泡 状態の接着剤で充填できる。 Even if the amount of adhesive per unit area of the shield tape is small, the thickness of the adhesive layer can be made sufficiently thick due to foaming, and the step difference at the tape end of the vertical tape stacking part of the shield tape is foamed. Can be filled with the adhesive.

【００１０】 また、接地用ドレンワイヤ−直上のシ−ルドテ−プ部分をプレス等で加圧する ことにより、その間の発泡接着剤層の気泡を潰して、上記の単位面積当たりの少 ない接着剤量で両者間の良好な電気的接触を保障できる。 更にまた、発泡のために良好な電磁波シ−ルド効果を保障できる。Further, by pressing the shield tape portion directly above the grounding drain wire with a press or the like, air bubbles in the foamed adhesive layer between them are crushed, and the amount of adhesive per unit area is small. Good electrical contact between the two can be guaranteed. Furthermore, due to foaming, a good electromagnetic wave shielding effect can be guaranteed.

【００１１】[0011]

【実施例】【Example】

以下、図面により本考案の実施例を説明する。 図１は本考案の実施例を示す断面図である。 図１において、１は金属箔であり、例えば、銅、鉛、アルミニウム等を使用で きる。２は金属箔１の片面に接着剤３（例えば、ポエステル系、ポリウレタン系 等の接着剤）により積層した補強フィルムであり、ポリエチレンテレフタレ−ト ，ポリイミド、ＰＥＥＫ等を使用できる。 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing an embodiment of the present invention. In FIG. 1, reference numeral 1 is a metal foil, and for example, copper, lead, aluminum or the like can be used. Reference numeral 2 denotes a reinforcing film in which one surface of the metal foil 1 is laminated with an adhesive 3 (for example, an adhesive such as a polyester or polyurethane adhesive), and polyethylene terephthalate, polyimide, PEEK or the like can be used.

【００１２】 ４は金属箔１の他面に設けた発泡接着層であり、発泡剤を添加した接着剤（例 えば、ポエステル系、ポリウレタン系等の接着剤）を塗布し、この塗布層を加熱 乾燥すると共に発泡させることにより形成できる。Reference numeral 4 denotes a foaming adhesive layer provided on the other surface of the metal foil 1, which is coated with an adhesive containing a foaming agent (for example, a polyester or polyurethane adhesive), and the coating layer is heated. It can be formed by drying and foaming.

【００１３】 上記の補強フィルム層２、接着剤層３並びに４には難燃性乃至は不燃性のもの を使用することが好ましい。It is preferable to use a flame-retardant or non-flammable material for the reinforcing film layer 2 and the adhesive layers 3 and 4.

【００１４】 図２は上記シ−ルドテ−プの使用状態を示し、絶縁フィルム５，５によって平 行導体６，…（平角線または丸線）を絶縁し、それらの導体の一本６１を接地用 ドレンワイヤ−とし、他の導体を伝送用導体とするテ−プ電線Ｂの接地用ドレン ワイヤ−６１を絶縁フィルム５の開口により露出させ、当該シ−ルドテ−プＡを 発泡接着層４を内側にしてテ−プ電線Ｂに縦添えし、加熱加圧によりシ−ルドテ −プＡを接着してある。FIG. 2 shows a use state of the shield tape, in which the insulating conductors 5 and 5 insulate the parallel conductors 6, ... (A rectangular wire or a round wire), and one of the conductors 61 is grounded. Drain wire 61 for the ground wire B of the tape electric wire B using the other conductor as the transmission conductor is exposed through the opening of the insulating film 5, and the shield tape A is covered with the foam adhesive layer 4 inside. Then, it is vertically attached to the tape electric wire B and the shield tape A is adhered thereto by heating and pressing.

【００１５】 この場合、シ−ルドテ−プＡの単位面積当たりの接着層４の接着剤量が小量で あっても、接着層４の厚みを発泡のために充分に厚くできるから、シ−ルドテ− プの縦添え重ね部におけるテ−プ端段差ａを発泡接着剤でよく充填できる。この 発泡接着剤においては、微小気泡の分散のために、クッション性を呈し、応力緩 和作用が期待できるから、シ−ルドテ−プ付きテ−プ電線の繰返し屈曲のもとで も、シ−ルドテ−プＡの接着状態を安定に保持できる。In this case, even if the adhesive amount of the adhesive layer 4 per unit area of the shield tape A is small, the thickness of the adhesive layer 4 can be made sufficiently thick for foaming. It is possible to well fill the tape end step a in the vertically attached overlapping portion of the rudder tape with the foaming adhesive. Since this foamed adhesive exhibits cushioning properties due to the dispersion of microscopic bubbles and can be expected to have a stress relieving action, even when the tape wire with shield tape is repeatedly bent, The bonded state of the rudder tape A can be stably maintained.

【００１６】 また、接地用ドレンワイヤ−６１直上のシ−ルドテ−プ部分Ａ₀の強い加圧に より、接地用ドレンワイヤ−６１とシ−ルドテ−プ部分Ａ₀間の発泡接着層４の 気泡を潰してその接着層厚みを薄くし、両者の充分な電気的接触を保障できると 共にシ−ルド層である金属と導体間との距離を充分一定に保持できるから、良好 な電磁波シ−ルド効果を得ることができる。Further, just above the ground drain wire -61 sheet - Rudote - More intense pressure of up section A _0, and grounding a drain wire -61 sheet - the bubbles of the foamed adhesive layer 4 between the flop portion A ₀ - Rudote By squeezing it to reduce the thickness of the adhesive layer, sufficient electrical contact between the two can be ensured, and at the same time, the distance between the metal, which is the shield layer, and the conductor can be kept sufficiently constant, resulting in a good electromagnetic shield effect. Can be obtained.

【００１７】 現に、難燃剤配合のポリエステル系接着剤を、厚さ１２μｍのポリエチレンテ レフタレ−トフィルムの片面に塗布し、１３０℃×１分間で乾燥させて１０μｍ の接着層を形成し、この接着層に厚み９μｍの銅箔を１５０℃×１分間で熱融着 させ、この銅箔面に、上記の難燃剤配合のポリエステル系接着剤に更に発泡剤を 添加したものを塗布し、１３０℃×１分間で乾燥させると共に発泡させて発泡接 着層を設けたシ−ルドテ−プを、図２に示すように、テ−プ電線に縦添え接着し たところ、縦添え重ね部のテ−プ端段差ａを完全に充填でき、かつ、接地用ドレ ンワイヤ−とシ−ルドテ−プとの間の電気的導通も良好であった。Actually, a polyester adhesive containing a flame retardant is applied to one side of a 12 μm thick polyethylene terephthalate film and dried at 130 ° C. for 1 minute to form an adhesive layer of 10 μm. A copper foil having a thickness of 9 μm was heat-fused at 150 ° C. for 1 minute, and the surface of the copper foil was coated with the above-mentioned flame-retardant-blended polyester adhesive to which a foaming agent was added, and 130 ° C. As shown in Fig. 2, the shield tape, which was dried for a minute and foamed to form a foam adhesive layer, was vertically attached to the tape electric wire, as shown in Fig. 2. The step a was completely filled, and the electrical continuity between the grounding drain wire and the shield tape was good.

【００１８】 なお、本考案のシ−ルドテ−プにおける接着層の発泡については、テ−プ電線 に縦添え接着する際の加熱で発泡剤添加接着剤層を発泡させてもよく、この場合 、接地用ドレンワイヤ−とシ−ルドテ−プ間の加圧力を大にし、それらの間の接 着剤層の発泡を抑えてシ−ルドテ−プと接地用ドレンワイヤ−との電気的接触が 行なわれる。Regarding the foaming of the adhesive layer in the shield tape of the present invention, the foaming agent-containing adhesive layer may be foamed by heating when vertically adhering to the tape electric wire. In this case, The pressure applied between the grounding drain wire and the shield tape is increased, and the foaming of the adhesive layer between them is suppressed to make electrical contact between the shield tape and the grounding drain wire.

【００１９】[0019]

【考案の効果】[Effect of the device]

本考案のテ−プ電線用シ−ルドテ−プにおいては、上述した通り、テ−プ電線 に、縦添え重ね部のテ−プ端段差での未接着箇所を残すことなく縦添え接着でき 、かつ、露出接地用ドレンワイヤ−に充分な電気的導通性で接触できる。従って 、テ−プ電線に、テ−プ電線の屈曲繰返しによく耐える良好な特性の電磁波シ− ルドを施すことができる。 As described above, in the tape tape for tape electric wire according to the present invention, the tape electric wire can be vertically attached and adhered to the tape electric wire without leaving an unadhered portion at the tape end step of the vertically attached overlapping portion, In addition, the drain wire for exposed grounding can be contacted with sufficient electrical conductivity. Therefore, the tape electric wire can be provided with an electromagnetic wave shield having good characteristics that can endure repeated bending of the tape electric wire.

【図面の簡単な説明】[Brief description of drawings]

【図１】本考案の実施例を示す断面図である。FIG. 1 is a cross-sectional view showing an embodiment of the present invention.

【図２】本考案のシ−ルドテ−プの使用状態を示す断面
図である。FIG. 2 is a sectional view showing a used state of the shield tape of the present invention.

【図３】従来のテ−プシ−ルド付きテ−プ電線を示す説
明図である。FIG. 3 is an explanatory view showing a conventional tape electric wire with a tape shield.

【符号の説明】[Explanation of symbols]

Ａ シ−ルドテ−プ １ 金属箔 ４ 発泡接着層 Ｂ テ−プ電線 ５ 絶縁テ−プ ６ 導体 ６１ 接地用ドレンワイヤ− A shield tape 1 metal foil 4 foam adhesive layer B tape electric wire 5 insulating tape 6 conductor 61 drain wire for grounding

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項１】絶縁テ−プ間に平行配列の信号伝送用導体
と接地用ドレンワイヤ−とを有するテ−プ電線の接地用
ドレンワイヤ−を、絶縁テ−プを開口することにより露
出させ、片面に接着層を有するシ−ルドテ−プを、接着
層を内側にして上記テ−プ電線に縦添えし、シ−ルドテ
−プと接地用ドレンワイヤ−とを加圧接着により電気的
に導通させるシ−ルドテ−プ付きテ−プ電線のシ−ルド
テ−プにおいて、接着層を発泡させたことを特徴とする
テ−プ電線用シ−ルドテ−プ。1. A grounding drain wire of a tape electric wire having signal transmission conductors and a grounding drain wire arranged in parallel between the insulating tapes is exposed by opening the insulating tapes, and one side is exposed. A shield tape having an adhesive layer is vertically attached to the tape electric wire with the adhesive layer inside, and the shield tape and the ground drain wire are electrically connected by pressure adhesion. -A shield tape of a tape electric wire with a tape tape, characterized in that an adhesive layer is foamed.