JP5330974B2 - Shielded flat cable - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shielded flat cable capable of achieving required adjustment of characteristic impedance, and having flexural performance responding to motion of a movable part of, for instance, a slide door of an automobile. <P>SOLUTION: In the shielded flat cable 1, a flat cable including a plurality of rectangular conductors 14 is formed with a core flat cable 11 using any of them as a core rectangular conductor 14C; shielded flat cable bodies 12 each including a wide rectangular conductor 14W having a width larger than the width of the core rectangular conductor 14C are arranged on both outer sides of the core flat cable 11, respectively; a net-like holding member 20 for holding a cable laminate 10 wherein, between the core flat cable 11 and the shielded flat cables 12, spacer members 13 each keeping the distance between the flat cables 11, 12 at a predetermined value are interposed is arranged outside the cable laminate 10; and the net-like holding member 20 and the spacer members 13 are each formed of a flexible member. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a flat cable used for electrical and electronic equipment, and more particularly to a shielded flat cable suitable for use in high-speed and large-capacity communication.

  In recent years, shielded flat cables are required to be used as high-speed transmission cables with the development and popularization of digital devices such as AV devices, OA devices, liquid crystal televisions, and plasma televisions.

  When a flat cable is used as a high-speed transmission cable, it is important to match the characteristic impedance to a target value, and inventions made to realize this characteristic are disclosed in various documents.

  For example, in the shielded flat cable of Patent Document 1, an insulating plastic film with an adhesive is provided on both upper and lower surfaces of a conductor group, a shielding material is provided on at least one side of the insulating plastic film with an adhesive, and the shielding material is disposed. The thickness of the insulating plastic film with adhesive on the side is set to 120 μm or more.

  By ensuring the distance between the conductor group and the conductive adhesive layer in this way, the characteristic impedance of the flat cable can be matched, and depending on the application, the flat cable can be attached by bonding multiple thin film general-purpose products. The characteristic impedance may be matched as a total thickness of 200 μm or more.

  The shielded flat cable of Patent Document 1 can satisfy the characteristic impedance by increasing the thickness of the shield material as described above, and can also improve the noise performance.

  However, as described above, when matching the characteristic impedance, a plurality of thin film general-purpose products may be bonded together to increase the thickness of the flat cable.

  On the other hand, recently, a large number of electronic control units (ECUs) are installed in automobiles, and these electronic control units are automatically controlled by connecting them to electrical components via a CAN communication circuit. Among the transmission cables, it is required to satisfy the performance as a CAN communication cable corresponding to a control protocol called “CAN” (Controller Area Network).

  CAN is standardized as a standard interface for automobiles as a main target (ISO11898), and is a control protocol that is rapidly spreading in recent years because it has a much higher communication speed and noise resistance than conventional systems. is there.

  For example, in order to apply a flat cable as a CAN communication cable, the characteristic impedance of the flat cable is required to satisfy 95 to 140Ω.

  Further, the flat cable is required to have electrical performance corresponding to such CAN communication. However, the flat cable may be installed in a movable part such as a sliding door (SDC) of an automobile. Therefore, it is necessary to satisfy the bending performance.

JP 2007-299704 A

  Accordingly, the present invention has an object to provide a shielded flat cable that can adjust the characteristic impedance and, in addition, has excellent bending performance corresponding to the movement of a moving part such as a sliding door of an automobile. . In particular, an object is to provide a shielded flat cable suitable for a CAN communication cable specialized in data transfer between in-vehicle devices.

The present invention comprises a flat cable body having a plurality of conductors arranged in parallel at predetermined intervals in the width direction, and a core flat cable body having at least one of the plurality of conductors as a core conductor , and the core while disposed in each of both lateral thickness direction of the flat cable body, and the shield flat cable body provided with a wide conductor having a width larger than that of the core conductor, said core flat cable body and the shield flat cable body Spacer members that are interposed between the thickness directions and maintain the spacing between the flat cable bodies at a predetermined interval are laminated without being fixed to each other , and the core flats that are laminated on the outside of the cable laminate. cable body, as the shield flat cable body and the spacer member are not separated, the cable product The body, by its own elasticity, characterized in that as well as composed of a laminate retaining member for holding together, the laminate retaining member and said spacer member, a shielded flat cable configured in a flexible member And

  The core conductor is a conductor set to transmit data at high speed, for example, as a conductor for CAN communication among a plurality of conductors.

  The core conductor set to transmit data at high speed as a conductor for CAN communication can be constituted by, for example, a non-plated rectangular conductor or, if necessary, a tin-plated rectangular conductor, but is limited to these conductors. is not.

  The spacer member is not particularly limited as long as it is an insulating member. From the viewpoint that a desired characteristic impedance can be obtained, the thickness of the spacer when the width of the core conductor is in the range of 1.4 to 2.5 mm. Is preferably about 0.5 to 1.0 mm, but the thickness is not particularly limited.

  The spacer member is not particularly limited as long as it has flexibility and insulating properties, but it is preferably made of an olefin resin material such as polypropylene (PP) or polyethylene terephthalate. Since the olefin resin is excellent in cold resistance in addition to insulation and strength, it is difficult to deteriorate even when it is routed outdoors for automobiles, and the quality can be ensured.

  The laminated body holding member and / or the spacer member is preferably a net-like sheet described later, but is not limited to this configuration, and the material and form are not particularly limited.

  As an aspect of the present invention, an exterior member that protects the cable laminate and the laminate holding member from the outside can be provided, and the exterior member can be formed of a flexible member.

  The exterior member is not particularly limited as long as it is a flexible member such as a resin such as an elastomer, synthetic rubber, or natural rubber.

  The form of the exterior member is not particularly limited, such as a ring-shaped member or a C-shaped member in cross-sectional view. However, the exterior member is preferably tubular (tubular) in that the laminate holding member can be protected from the outside over the entire length.

  Further, as an aspect of the present invention, the core conductor is set to two conductors adjacent to each other in at least the width direction among the plurality of conductors, and a portion of two or more thirds of the width of the core conductor is set to the wide conductor. It can arrange | position in the part equivalent to the width direction inner side.

  If the core conductor is disposed in a portion corresponding to at least two thirds of the width of the core conductor on the inner side in the width direction of the wide conductor, the noise performance required for use as the core conductor is satisfied. be able to.

  In particular, the core conductor has a half or more portion disposed in a portion corresponding to the inner side in the width direction of the wide conductor, so that a shielding effect by the wide conductor can be obtained, and noise performance is further improved. It is more preferable at the point which can be improved.

  Further, if the entire width of the core conductor is arranged in a portion corresponding to the inner side in the width direction of the wide conductor, the shielding effect by the wide conductor can be obtained more significantly, and excellent noise performance can be obtained. It is particularly preferable in that

  As an aspect of the present invention, a plurality of the wide conductors may be provided, and the wide conductors may be arranged in parallel in the width direction to be provided in the shield flat cable body.

  Thus, the shield flat cable body is not limited to a single-core cable having one wide conductor, and can be configured as a multi-core cable body having two or more cores.

  As an aspect of the present invention, the laminate holding member and / or the spacer member can be formed of a mesh sheet.

  The mesh sheet is, for example, one in which warp and weft are knitted in a net shape, one in which the intersection of warp and weft is heat welded to form a net, or a number of communication holes are provided on the sheet-like surface. Then, it may be formed in a net shape.

  ADVANTAGE OF THE INVENTION According to this invention, the flat cable provided with the outstanding bending | flexion performance corresponding to the motion of movable parts, such as a sliding door of a motor vehicle, for example, can be adjusted to the required characteristic impedance. be able to.

  In particular, it is possible to provide a shielded flat cable suitable for a CAN communication cable specialized for data transfer between in-vehicle devices.

The disassembled perspective view of the flat cable with a shield of 1st Embodiment. Sectional drawing of the cable laminated body of 1st Embodiment. Structure explanatory drawing of the cable laminated body of 1st Embodiment. The graph which shows the relationship between characteristic impedance and the thickness of a spacer member. Sectional drawing of the cable laminated body of 2nd Embodiment. Explanatory drawing of the cable laminated body of 2nd Embodiment. The other explanatory view of the cable layered product of a 2nd embodiment.

An embodiment of the present invention will be described below with reference to the drawings.
(First embodiment)
The shielded flat cable 1 according to the first embodiment includes a cable laminate 10 formed by laminating a plurality of strip-like long members such as cables to be described later in the thickness direction, as shown in FIGS. A net-like holding member 20 formed of a net that integrally holds the cable laminated body 10 from the outer peripheral side over the entire length of the cable laminated body 10, and the cable laminated body from the outside of the net-like holding member 20 10 and an outer tube 30 that protects 10.

  1 is an exploded perspective view showing only a part of the shielded flat cable 1 in FIG. 1, but the shielded flat cable 1 is formed with a necessary length, and is routed at a predetermined location inside the vehicle or the like. Is. FIG. 2 is a diagram schematically showing a cross section when the cable laminate 10 is cut in a direction orthogonal to the length direction. FIG. 3 is a diagram in which the members constituting the cable laminate 10 are arranged in the vertical direction with a predetermined interval therebetween.

  The cable laminate 10 includes a core flat cable body 11 at an intermediate portion in a thickness direction (vertical direction in FIG. 2), and shield flat cable bodies 12 are arranged on both outer sides in the thickness direction, respectively. A spacer member 13 is interposed between the body 11 and the shielded flat cable body 12 in the thickness direction to keep the flat cable bodies at a predetermined interval.

  The core flat cable body 11, the shield flat cable body 12, and the spacer member 13 constituting the cable laminated body 10 are laminated in a state where they are not fixed to each other.

  The core flat cable body 11 includes four strip-shaped rectangular conductors 14 arranged in parallel at substantially equal intervals in the width direction (left-right direction in FIG. 2), and integrally surrounds the rectangular conductors 14 from the front and back sides. Insulating (non-conductive) laminate sheet 15 is used.

  The four flat conductors 14 arranged in parallel are all formed of the same size by a flat copper wire without plating. Of the four flat conductors 14, two flat conductors adjacent to each other at the center in the width direction. 14 is set as a core rectangular conductor 14C as a conductor for CAN communication data transmission when the shielded flat cable 1 is used as a CAN communication cable.

  The shield flat cable body 12 is composed of one strip-shaped wide flat conductor 14W and an insulating laminate sheet 15 that sandwiches the wide flat conductor 14W from the front and back sides and integrally surrounds.

  The wide flat rectangular conductor 14W provided in the shield flat cable body 12 has a width equal to or larger than the width of at least two of the core flat rectangular conductors 14C. Specifically, four flat rectangular conductors arranged in parallel with the core flat cable body 11 The four flat conductors 14 are formed to have a width substantially the same as the total length when the four flat conductors 14 are arranged in parallel.

  Since the wide flat rectangular conductor 14W is provided so that the intermediate portion of the wide flat rectangular conductor 14W coincides with the intermediate portion of the shield flat cable body 12 in the width direction, the two core flat conductors 14C adjacent to each other at the center in the width direction are The wide flat rectangular conductor 14W is arranged so as not to protrude outward in the width direction, that is, in a portion corresponding to the inner side in the width direction of the wide flat rectangular conductor 14W.

  The wide rectangular conductor 14W is used as a shield and ground conductor for CAN communication data transmission using the core rectangular conductor 14C, but excludes the use of the wide rectangular conductor 14W as a data transmission conductor. is not.

  The spacer member 13 is formed of an insulating net-like sheet made of an olefin-based resin material such as polypropylene (PP) or polyethylene terephthalate, and has both elasticity and flexibility, and has excellent flexibility (flexibility). It is a sheet-like member.

  The net-shaped holding member 20 is formed in a net-like long and slender cylindrical shape with excellent flexibility (flexibility), for example, by a resin such as polypropylene. That is, since the net-shaped holding member 20 is excellent in stretchability and flexibility, the cable laminate 10 disposed inside the cylindrical shape is integrally held by the stretch force.

  The exterior tube 30 is formed of an elongated cylindrical member made of an elastomer resin, and is formed in a flat shape having an inner diameter that is slightly larger than the cross section of the cable laminate 10 (see FIG. 1).

  Subsequently, with respect to the thickness of the spacer member 13 described above, a method for setting the thickness of the spacer member 13 necessary for configuring the shielded flat cable 1 of the first embodiment so as to satisfy the characteristic impedance required for the CAN communication cable. Will be described.

  The characteristic impedance required for the CAN communication cable is generally 95 to 140Ω, and can be calculated using the following formula (1).

ここで、数式（１）中のμ_Ｓは、絶縁体の比透磁率、ε_Ｓは、絶縁体の比誘電率を示し、Ａは、絶縁性ラミネートシート１５の厚さ、Ｂは、スペーサ部材１３の厚み、Ｗは、コア平角導体１４Ｃの幅を示し、本実施例では、μ_Ｓ＝１．０、ε_Ｓ＝３．２、Ａ＝０．０９ｍｍに設定している。

Here, μ _S in Equation (1) is the relative permeability of the insulator, ε _S is the relative permittivity of the insulator, A is the thickness of the insulating laminate sheet 15, and B is the spacer member. The thickness 13 and W indicate the width of the core rectangular conductor 14C. In this embodiment, μ _S = 1.0, ε _S = 3.2, and A = 0.09 mm.

  Based on Formula (1), the relationship between the thickness (B) of the spacer member 13 and the characteristic impedance when the thickness (B) of the spacer member 13 is changed from 0 to 1.0 mm is as shown in the graph of FIG. Appears.

  Note that the four linear graphs in FIG. 4 show waveforms for the cases where the width (W) of the core flat conductor 14C is 1.4 mm, 1.5 mm, 1.6 mm, and 2.5 mm.

  As is apparent from FIG. 4, the characteristic impedance value 95 required for the CAN communication cable in each case where the width (W) of the core rectangular conductor 14C is 1.4 mm, 1.5 mm, 1.6 mm, and 2.5 mm. It can be seen that the thickness (B) of the spacer member 13 is desirably around 0.5 to 1.0 mm in order to satisfy ~ 140Ω.

  In addition, the difference between the approximate value calculated based on Equation (1) and the actual measurement value was verified with respect to the characteristic impedance simultaneously with the present example.

Specifically, the characteristic impedance was measured when the thickness B of the spacer member 13 was set to 0.6 mm when the width (W) of the core flat conductor 14C was 1.4 mm and 1.5 mm. The measurement results are as plotted in FIG.
In FIG. 4, when the width (W) of the core rectangular conductor 14C is 1.4 mm, it is plotted with a “▲” mark, and when the measured value is 1.5 mm, it is plotted with a “●” mark. .

  As shown in FIG. 4, this measured value is substantially the same as the approximate value indicated by the linear waveform corresponding to the width (W) of each core flat conductor 14C when the thickness B of the spacer member 13 is 0.6 mm. It has become clear that there is almost no error between the approximate value calculated based on the mathematical formula (1) and the actual measurement value, and is in a negligible range.

  As described above, the spacer thickness B can be determined so as to satisfy the desired characteristic impedance based on FIG. 4 or Formula (1), and the shielded flat cable 1 satisfying the desired characteristic impedance can be obtained. Became clear.

The shielded flat cable 1 described above can exhibit the following operations and effects.
Since the shielded flat cable 1 of the present embodiment has a configuration in which the shield flat cable body 12 including the wide flat rectangular conductor 14W is disposed on both outer sides in the thickness direction of the core flat cable body 11, the shield flat cable body 12 can act as a shield and a ground, and the noise performance can be remarkably improved.

  Furthermore, since the spacer member 13 is interposed between the core flat cable body 11 and the shield flat cable body 12, the characteristic impedance is adjusted according to the material, thickness, shape, etc. of the spacer member 13. Can be planned.

  Further, since the cable laminated body 10 is integrally held by the net-like holding member 20, even if the cable laminated body 10 is bent, the cable laminated body 10, that is, the core flat cable body 11, the shield flat cable body 12, and The spacer members 13 can be kept in excellent integrity without being separated from each other.

  By providing the exterior tube 30 that protects the cable laminate 10 and the net-like holding member 20 from the outside, the durability of the cable laminate 10 and the net-like holding member 20 can be improved. Therefore, even if the shielded flat cable 1 is disposed outdoors, the cable laminate 10 and the net-like holding member 20 can be securely protected against external factors.

  Since the cable laminated body 10 has a configuration in which the core flat cable body 11, the shield flat cable body 12, and the spacer member 13 are simply laminated without being fixed, the core flat cable body 11, the shield flat cable body 12, and Each of the spacer members 13 is allowed to move in the longitudinal direction, and is allowed to move to some extent in the width direction. Therefore, the cable laminate 10 can have excellent bending performance.

  In addition, the spacer member 13, the net-like holding member 20, and the exterior tube 30 are formed of flexible members.

  Therefore, even when the shielded flat cable 1 is routed to a movable part such as a sliding door or trunk of an automobile, the shielded flat cable 1 bends appropriately according to the operation of the movable part and flexibly corresponds to the operation of the movable part. Can do.

  Further, since the net-like holding member 20 and / or the spacer member 13 is formed of a mesh-like sheet having excellent flexibility (stretchability and flexibility), as described above, the shield having excellent bending performance. In addition to being able to constitute the attached flat cable 1, the mesh-like sheet is lightweight, so that the entire shielded flat cable 1 can be kept light even if the thickness of the spacer member 13 is increased, for example.

The shielded flat cable 1 can exhibit various actions and effects as described above, but is not limited to the above-described embodiment, and may be configured in other embodiments.
Below, although the flat cable 2 with a shield of 2nd Embodiment is demonstrated, about the structure similar to the flat cable 1 with a shield of 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

(Second Embodiment)
For example, as shown in FIG. 5, the shielded flat cable 2 according to the second embodiment includes, for example, two wide flat rectangular conductors 14W2 in the shield flat cable body 12, and the two wide flat rectangular conductors 14W2. Are arranged in parallel in the width direction.
FIG. 5 is a diagram schematically showing a cross section when the cable laminate 10 is cut in a direction orthogonal to the length direction.

  Specifically, the wide flat rectangular conductor 14W2 of the second embodiment is configured such that a portion where the wide flat rectangular conductor 14W itself does not exist is formed in an intermediate portion in the width direction of the wide flat rectangular conductor 14W (see FIG. 2) of the first embodiment. This is the same configuration as each wide rectangular conductor when divided into two.

  In the case of this configuration, the wide flat rectangular conductor 14W2 of the second embodiment arranged in parallel in the width direction has an arrangement form having a portion where the wide flat rectangular conductor 14W itself does not exist in an intermediate portion in the width direction. The width of the two wide flat conductors 14W2 of the embodiment is shorter than the width of the wide flat conductor 14W of the first embodiment, so the overall weight of the shielded flat cable 1 can be reduced. In addition, the cost can be reduced.

  In addition, also about the flat cable 2 with a shield of 2nd Embodiment, the thickness of the spacer member 13 can be set with the method similar to the setting method of the thickness of the spacer member 13 mentioned above.

Next, the relationship for satisfying the noise performance between the core flat conductor 14C and the wide flat conductors 14W and 14W2 will be described.
Since the core flat cable body 11, the spacer member 13, and the shield flat cable body 12 are laminated without being fixed to each other, the core flat cable body 11 and the shield flat cable body 12 are relatively moved (shifted) in the width direction to some extent. ) There are cases.

  Even in this case, as shown in FIGS. 2 and 5, if the entire width of the core flat conductor 14C is arranged in a portion corresponding to the inner side in the width direction of the wide flat conductors 14W and 14W2, excellent noise performance is maintained. be able to.

If the core flat cable body 11 and the shield flat cable body 12 relatively move to some extent in the width direction in the shielded flat cable 2 of the second embodiment, as shown in FIG. 6, the two core flat conductors 14C It is assumed that one of the core flat conductors 14C protrudes outward in the width direction from one end of the wide flat conductor 14W2 in the width direction (for example, the left end el in FIG. 6).
6 shows a cross-sectional view in which the core flat cable body 11 constituting the cable laminate 10 shown in FIG. 5 is moved relative to the shield flat cable body 12, and FIG. Of the two rectangular conductors 14, the left two rectangular conductors 14 in the figure are set as the core rectangular conductor 14C.

  In this case, the noise performance is reduced to some extent. However, as long as a portion of more than two-thirds of the width of the core flat conductor 14C is disposed in a portion corresponding to the inner side in the width direction of the wide flat conductor 14W2, that is, As long as the core rectangular conductor 14C that protrudes outward in the width direction is placed on the right side of the position shown in FIG. 6, it is experimentally clarified that the degree of noise performance degradation can be kept within a range that satisfies the required characteristics. Yes.

  Therefore, the shielded flat cables 1 and 2 are configured so that the entire width of the core flat conductor 14C is arranged in a portion corresponding to the inner side in the width direction of the wide flat conductor 14W2. Even when the shield flat cable body 12 is displaced to some extent in the width direction (within a range of 2/3 or less of the width of the core flat conductor 14C), excellent noise performance can be maintained.

  In particular, in the shielded flat cable 2 of the second embodiment, the core flat cable body 11 and the shield flat cable body 12 relatively move in the width direction, so that the core flat conductor 14C has a wide width as shown in FIG. Of the both ends el and er in the width direction of the flat conductor 14W, there may be cases where the other wide flat conductor 14W arranged in parallel does not protrude outward from the end el.

In addition, as shown in FIG. 7, the core flat conductor 14C has an end portion on the side where the other wide flat rectangular conductor 14W2 arranged in parallel is present among both ends er and el in the width direction of the wide flat rectangular conductor 14W2. er may protrude outward from er.
7 shows a view in which the core flat cable body 11 is moved relative to the shield flat cable body 12 in the direction opposite to that in FIG. 6. Further, in FIG. 7, the four flat conductors 14 arranged in parallel are shown in FIG. Among them, two flat rectangular conductors 14 adjacent on the center side are set as the core flat rectangular conductor 14C.

  Even if the core flat conductor 14C is displaced in any of the above-described directions, the noise performance is lowered. However, in the latter case (the one described with reference to FIG. 7), the influence of the noise performance being lowered can be reduced. It became clear experimentally.

  As described above, in the shielded flat cable 2 of the second embodiment, the wide rectangular conductors 14W are intermittently arranged in parallel in the width direction at predetermined intervals. As described above, the width of the core rectangular conductor 14C is wide. As long as it does not protrude to the outside in the width direction by more than two-thirds of 14W2, the function as a shield and ground is ensured, so that the noise performance satisfying the required characteristics can be maintained.

  Further, the shielded flat cable 2 according to the second embodiment is advantageous in that the overall weight can be reduced and the cost can be reduced because no conductor exists between the two wide rectangular conductors 14W2 arranged in parallel. Can also be obtained.

In the correspondence between the embodiment described above and the configuration of the present invention, the rectangular conductor 14 is assumed to correspond to a conductor.
The core rectangular conductor 14C corresponds to the core conductor,
The wide flat rectangular conductor 14W corresponds to the wide conductor,
The net-like holding member 20 corresponds to the laminated body holding member,
The exterior tube 30 corresponds to an exterior member.

DESCRIPTION OF SYMBOLS 1, 2 ... Shielded flat cable 10 ... Cable laminated body 20 ... Net-like holding member 30 ... Outer tube 11 ... Core flat cable body 12 ... Shield flat cable body 13 ... Spacer member 14 ... Flat conductor 14C ... Core conductor 14W, 14W2 ... Wide flat conductor

Claims (5)

A flat cable body having a plurality of conductors arranged in parallel in the width direction at predetermined intervals, a core flat cable body having at least one of the plurality of conductors as a core conductor , and the core flat cable body while disposed in each of both lateral thickness direction, between the thickness direction of the shield flat cable body provided with a wide conductor having a width larger than that of the core conductor, said core flat cable body and the shield flat cable body is interposed, and a spacer member to maintain the spacing of the flat cable body a predetermined distance, a cable laminate formed by laminating without sticking to each other,
A laminated body that is provided outside the cable laminated body and holds the cable laminated body integrally by its own elasticity so that the laminated core flat cable body, shield flat cable body, and spacer member are not separated. With the holding member ,
The shielded flat cable which comprised the said laminated body holding member and the said spacer member with the flexible member. An exterior member for protecting the cable laminate and the laminate holding member from the outside;
The shielded flat cable according to claim 1, wherein the exterior member is formed of a flexible member. The core conductor is set to two conductors adjacent in at least the width direction among the plurality of conductors,
The shielded flat cable according to claim 1 or 2, wherein a portion of two or more thirds of the width of the core conductor is disposed in a portion corresponding to an inner side in the width direction of the wide conductor. The shielded flat cable according to claim 3, wherein the shielded flat cable body includes a plurality of the wide conductors, and the wide conductors are arranged in parallel in the width direction. The shielded flat cable according to any one of claims 1 to 4, wherein the laminated body holding member and / or the spacer member is formed of a mesh sheet.

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