KR101749803B1 - Wiring member - Google Patents

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Publication number
KR101749803B1
KR101749803B1 KR1020150061244A KR20150061244A KR101749803B1 KR 101749803 B1 KR101749803 B1 KR 101749803B1 KR 1020150061244 A KR1020150061244 A KR 1020150061244A KR 20150061244 A KR20150061244 A KR 20150061244A KR 101749803 B1 KR101749803 B1 KR 101749803B1
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KR
South Korea
Prior art keywords
coaxial
resin film
flat cable
cable
conductor
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KR1020150061244A
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Korean (ko)
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KR20160129316A (en
Inventor
노부유키 야마자키
히로유키 셈바
다츠오 마츠다
고 히라카와
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스미토모 덴키 고교 가부시키가이샤
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Priority to KR1020150061244A priority Critical patent/KR101749803B1/en
Publication of KR20160129316A publication Critical patent/KR20160129316A/en
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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
    • H01B7/0045—Cable-harnesses
    • 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
    • H01B7/08—Flat or ribbon cables
    • 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
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables

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  • Insulated Conductors (AREA)
  • Communication Cables (AREA)

Abstract

Provided is a wiring member that can be wired in a narrow space and can easily be wired to a movable portion or a bent portion.
(41) bonded to at least one of a plurality of coaxial cables (30) and a parallel surface of a plurality of coaxial cables (30) arranged in a planar shape to maintain a plurality of coaxial cables (30) in a parallel state The coaxial flat cable 10 has a non-laminate portion 40 in which at least one resin film 41 is not present in the width direction in at least one of the longitudinal direction of the coaxial flat cable 10.

Description

Wiring member {WIRING MEMBER}

The present invention relates to a wiring member having a coaxial flat cable.

Conventionally, there is a technique of connecting a plurality of coaxial cables in parallel to a substrate (see Patent Document 1).

(Prior art document)

(Patent Literature)

Patent Document 1: Japanese Patent Laid-Open No. 2011-96403

When wiring is performed in a narrow wiring space in the frame of the electronic apparatus, the wiring member may be bent to conduct wiring. The wiring member to be wired in the movable portion or the bent portion is required to be easily bent at a predetermined position.

The coaxial cable harness of Patent Document 1 can not meet the demand for a wiring member having a flat shape as a whole because the harness of the coaxial cable of the patent document 1 tends to be wired by bundling the middle portion of a plurality of coaxial cables.

An object of the present invention is to provide a wiring member which can be wired even in a narrow space and has good flexibility and can be easily wired to a movable portion or a bent portion.

The wiring member according to the present invention comprises a center conductor, an inner insulator disposed on the outer periphery of the central conductor, an outer conductor disposed on the outer periphery of the inner insulator, a plurality of coaxial cables having an outer shell disposed on the outer periphery of the outer conductor, And a coaxial flat cable having a resin film adhered to at least one of parallel surfaces of the plurality of coaxial cables arranged in a shape so as to maintain a parallel state of the plurality of coaxial cables,

The coaxial flat cable includes:

A non-laminate portion in at least one of the longitudinal direction of the coaxial flat cable in at least one of the front and back surfaces of the parallel surface, wherein the resin film does not exist in the width direction,

Wherein the resin film has a laminate portion bonded to the coaxial cable on one side of the front and back surfaces of the parallel side,

And the laminate portion is longer than the non-laminate portion.

According to the present invention, it is possible to provide a wiring member which can be wired in a narrow space and has a good flexibility and can be easily wired to a movable portion or a bent portion.

1 is a top view of a wiring member according to an embodiment of the present invention.
2 is a side view of a wiring member according to an embodiment of the present invention.
3 is a cross-sectional view of the coaxial flat cable of the wiring member shown in Fig.
4 is an enlarged top view showing an end portion of the wiring member shown in Fig.
Fig. 5 is a side sectional view of Fig. 4. Fig.
6 is a side view of a wiring member according to a modification.
7 is a schematic structural view of a laminating apparatus.
8 is a top view of the wiring member during manufacture.
Fig. 9 is a view showing a manufacturing process of the wiring member, wherein (a) to (d) are side cross-sectional views at the end portions of the coaxial flat cable, respectively.
Fig. 10 is a diagram for explaining a method of evaluating the bending of a wiring member. Fig. 10 (a) is a side view in a state in which a load is applied to the wiring member, Side view.
11 is a side cross-sectional view of a modification.

≪ Overview of Embodiments of the Present Invention &

First, an outline of an embodiment of the present invention will be described.

In one embodiment of the wiring member according to the present invention,

(1) A coaxial cable comprising a central conductor, an inner insulator disposed on the outer periphery of the central conductor, an outer conductor disposed on the outer periphery of the inner insulator, a plurality of coaxial cables having an outer shell disposed on the outer periphery of the outer conductor, And a coaxial flat cable having a resin film bonded to at least one of the parallel surfaces of the plurality of coaxial cables to maintain a parallel state of the plurality of coaxial cables,

The coaxial flat cable includes:

A non-laminate portion in at least one of the longitudinal direction of the coaxial flat cable in at least one of the front and back surfaces of the parallel surface, wherein the resin film does not exist in the width direction,

Wherein the resin film has a laminate portion bonded to the coaxial cable on one side of the front and back surfaces of the parallel side,

And the laminate portion is longer than the non-laminate portion.

(1), a plurality of coaxial cables are held in parallel by the resin film. As a result, a plurality of coaxial cables can be easily wired in a parallel state. In addition, even when a resin film is bonded to maintain the parallel state of the coaxial cables, excellent bending performance (easy bendability) can be obtained in the non-laminate portion. As a result, it is possible to bend easily in the non-laminate portion, so that it is possible to perform bending wiring in the narrow wiring path.

(2) In the coaxial flat cable, the resin film is adhered to both sides of the parallel sides of the plurality of coaxial cables arranged in a planar shape, and the unlabelled portion has at least One place may be provided.

(2), the parallel state of the plurality of coaxial cables can be firmly held by the resin film adhered to both sides of the parallel side of the coaxial cable. In addition, it is easy to bend by the non-laminate portions provided on the front and back sides of the parallel surface.

(3) In the coaxial flat cable, the resin film is bonded to both sides of the parallel sides of the plurality of coaxial cables arranged in a planar shape, and the non-laminate portion is bonded to the coaxial flat cable in the longitudinal direction of the coaxial flat cable. Or may be provided at the same positions on the front and back sides of the parallel surface.

(3), the coaxial cable is exposed to the entire circumference of the portion by the non-laminating portion provided at the same position, so that it is easy to bend more.

(4) a connecting board connected to at least one end of the coaxial flat cable in the longitudinal direction,

Wherein an end of the coaxial cable is exposed in order from the outer conductor, the inner insulator, and the center conductor,

The connecting board may have a signal terminal portion and a ground portion, the center conductor may be soldered to the signal terminal portion, and the external conductor may be electrically connected to the ground portion.

(4), the connection board provided at the end portion of the coaxial flat cable can easily be wired to a board, a connector, or the like. Further, a plurality of coaxial cables are held in parallel by the resin film. Thereby, the coaxial cable can be arranged and connected to the connecting board with high precision.

(5) The end portion of the resin film may be adhered to the connecting substrate and fixed.

(5), since the end portion of the resin film is adhered and fixed to the connecting board, the connecting strength between the coaxial flat cable and the connecting board can be increased.

(6) The end portion of the resin film and the end portion of the connecting substrate on the resin film side may be covered with a reinforcing film.

(6), the strength of the end portion of the resin film and the connecting portion of the end portion of the connecting board can be increased.

(7) A portion of the coaxial cable at least on the tip side of the exposed outer conductor may be covered with a protective film.

The outer conductor and the central conductor are protected by the protective film and the peeling of the conductor and the short circuit between the conductors can be prevented.

(8) The length of the non-laminate portion in the longitudinal direction of the coaxial flat cable may be 3 mm or more and 15 mm or less.

(8) Good bending performance in the non-laminate portion can be ensured while keeping the arrangement state of the coaxial cables securely.

≪ Details of Embodiment of the Present Invention &

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a wiring member according to the present invention will be described with reference to the drawings. It is to be understood that the present invention is not limited to these examples, but is intended to cover all modifications within the meaning and range of equivalency of the claims, which are defined by the claims.

The wiring member 1 according to the embodiment of the present invention is used, for example, for electrically connecting a substrate or a part. The wiring member 1 is preferably used for transmitting a differential signal.

1 is a top view of a wiring member 1 according to an embodiment of the present invention. 2 is a side view of the wiring member 1 according to the embodiment of the present invention. As shown in Figs. 1 and 2, the wiring member 1 is provided with a coaxial flat cable 10 extending in the longitudinal direction. At both end portions of the coaxial flat cable 10 in the longitudinal direction, a connecting board 20 is provided.

3 is a cross-sectional view of the coaxial flat cable 10 of the wiring member 1 shown in Fig. 3, the coaxial flat cable 10 includes a plurality of coaxial cables 30 and a resin film 41 which adheres to the coaxial cable 30. [ As each of the coaxial cables 30, for example, a coaxial cable having an outer diameter of 0.16 to 0.3 mm can be used.

The coaxial cable 30 is provided with a center conductor 31, an inner insulator 32, an outer conductor 33 and a sheath 34. [ The inner insulator 32 is disposed on the outer periphery of the center conductor 31. The outer conductor 33 is disposed on the outer periphery of the inner insulator 32. The outer sheath 34 is disposed on the outer periphery of the outer conductor 33. The center conductor 31 is, for example, a metal wire such as copper. As the center conductor 31, a wire having an AWG of 42 to 47 can be used. AWG is an abbreviation of American Wire Gauge. The inner insulator 32 and the sheath 34 are made of an insulating resin.

The plurality of coaxial cables 30 are arranged in a planar shape. The arrangement of the coaxial cables 30 is set by a wiring design. In this embodiment, the coaxial cables 30 are arranged at a predetermined pitch. The resin film 41 is adhered to both sides of the parallel surface formed by the coaxial cable 30 to maintain the coaxial cable 30 in a parallel state. As the resin film 41, for example, polyethylene terephthalate (having a thickness of several mu m to several tens of mu m, preferably 8 mu m to 20 mu m) can be used. The outer shell 34 of the coaxial cable 30 and the resin film 41 are bonded together by an adhesive. The resin film 41 may be bonded to only one of the front and back surfaces of the parallel surface formed by the coaxial cable 30. [ In this embodiment, since the resin film 41 is bonded to both sides of the parallel surface, the parallel state of the coaxial cable 30 can be easily and firmly maintained.

The coaxial flat cable 10 has a resin film 41 adhered to a portion of the sheath 34 excluding the central conductor 31, the inner insulator 32 and the outer conductor 33 in the coaxial cable 30 . It is easy to keep the parallel state of the plurality of coaxial cables 30 extending in the longitudinal direction by the resin film 41 adhered to the entire portion of the outer casing 34 of the coaxial cable 30. [

The coaxial flat cable 10 has a laminate portion 39 and a non-laminate portion 40. The laminate portion 39 is a portion of the resin film 41 adhered to the coaxial cable 30. The non-laminate portion 40 is composed of a portion where the resin film 41 does not exist over the entire width in a certain length. By providing the non-laminate portion 40, the wiring member 1 is easy to bend in the non-laminate portion 40 of the coaxial flat cable 10. The laminate portion 39 is longer than the non-laminate portion 40.

In the present embodiment, the non-laminate portion 40 is provided at two positions in the longitudinal direction of the coaxial flat cable 10. The non-laminate portion 40 is provided on the surface of the coaxial flat cable 10 (the upper surface in Fig. 2) and the back surface of the coaxial flat cable 10 (the lower surface in Fig. 2) . Each of the non-laminate portions 40 is provided in the vicinity of an end portion of the coaxial flat cable 10 connected to the connecting board 20. The length L of the unlaminated portion 40 in the longitudinal direction of the coaxial flat cable 10 is preferably 3 mm or more and 15 mm or less. By providing the non-laminate portion 40 having the length L, it is possible to secure a good bending performance in the non-laminate portion 40 while keeping the arrangement state of the coaxial cable 30 securely. When bent and wired near the connecting substrate, the non-laminate portion 40 is preferably located at a position 20 mm from the connecting substrate.

4 is an enlarged top view showing the end portion of the wiring member 1 shown in Fig. As shown in Fig. 4, the connecting board 20 is connected to the end portion of the coaxial flat cable 10 in the longitudinal direction.

At the end of the coaxial flat cable 10, the coaxial cable 30 is exposed stepwise. Specifically, the outer conductor 33 is exposed from the envelope 34 toward the tip side from the longitudinal end of the coaxial cable 30, the inner conductor 32 is exposed from the outer conductor 33, The center conductor 31 is exposed from the center conductor 32.

The connecting board 20 is formed of, for example, a flexible board or a rigid board having a wiring pattern made of a metal foil or the like. The length of the connecting board 20 along the longitudinal direction of the coaxial flat cable 10 is short. The connecting board 20 has a terminal portion for connecting to another substrate or the like and a conductor portion serving as a connecting portion for connecting to the coaxial flat cable 10. [ The connecting board 20 is provided with a signal terminal portion 22 and a ground terminal portion 23. The signal terminal portion 22 and the ground terminal portion 23 extend linearly in the longitudinal direction of the coaxial cable 30. The signal terminal portion 22 is electrically connected to the central conductor 31 of the coaxial cable 30 and the ground terminal portion 23 is electrically connected to the outer conductor 33 of the coaxial cable 30. [

The central conductor 31 exposed from the coaxial cable 30 is soldered to the signal terminal portion 22 by the solder 61, respectively. The coaxial cable 30 including the signal terminal portion 22 and the central conductor 31 connected to the signal terminal portion 22 is arranged in a straight line in the longitudinal direction of the coaxial cable 30, And is soldered to the signal terminal portion 22.

In the present embodiment, since the ends of the coaxial cable 30 are stepwise exposed, the inner conductor 32 prevents the short-circuit between the center conductor 31 and the outer conductor 33. [

The ground terminal portion 23 extends in the same direction as the signal terminal portion 22. The end of the ground terminal portion 23 closer to the coaxial cable 30 extends to the side closer to the coaxial cable 30 than the end of the signal terminal portion 22. [ The ends of the plurality of ground terminal portions 23 closer to the coaxial cable 30 are connected to each other by a pad portion (ground portion) 25. The pad portion 25 extends in a direction orthogonal to the longitudinal direction of the coaxial cable 30.

The outer conductor 33 of each coaxial cable 30 is soldered to the pad portion 25 by the solder 62 and the outer conductor 33 and the ground terminal portion 23 are electrically connected via the pad portion 25 Respectively. It is easy to electrically connect the external conductor 33 to the ground terminal portion 23 by the pad portion 25. [ Each of the outer conductors 33 of the coaxial cable 30 to be connected in parallel is soldered by the solder 62 in the arrangement direction of the coaxial cable 30. [ Each of the external conductors 33 is soldered over the arrangement direction of the coaxial cables 30 so that the potential of the external conductors 33 of all the coaxial cables 30 can be aligned and the electrical characteristics can be easily maintained.

The coaxial cable 30 extends in a straight line and is connected to the signal terminal portion 22. The coaxial cable 30 is not disposed at the portion extending from the ground terminal portion 23. [ The spacing of the coaxial cables 30 is not constant at all over the entire width of the coaxial flat cable 10 but differs depending on the arrangement of the signal terminal portions 22 and the ground terminal portions 23. [ When the coaxial cable 30 is used for transmitting a differential signal, it is preferable that two coaxial cables 30 are arranged in pairs and a ground terminal portion 23 is disposed between the pair. In Fig. 4, for example, it is preferable that the following two coaxial cables 30 are made into a pair in which a differential signal is transmitted. Fig. 4 shows an example in which the two ground coaxial cables 30 and the two coaxial cables 30 thereunder are different pairs, and the ground terminal portions 23 are disposed between the pair. The spacing (pair spacing) of the two coaxial cables 30 in the pair is narrower than the spacing of the other pair of adjacent coaxial cables 30 (inter-pair spacing).

Fig. 5 is a side sectional view of Fig. 4, showing the structure around the end portion of the coaxial cable 30 in a section along the longitudinal direction of the coaxial cable 30. Fig. As shown in Fig. 5, an end portion of the resin film 41 in the longitudinal direction is bonded to the connecting board 20 via an adhesive 51. [ The connection strength between the coaxial flat cable 10 and the connecting board 20 can be increased since the end portion of the resin film 41 is adhered and fixed to the connecting board 20. [

At least the portion of the coaxial cable 30 closer to the tip side than the exposed external conductor 33 is covered with the protective film 42 made of resin. The protective film 42 is adhered to the end portion of the end-coated jacket 34 of the coaxial cable 30 and the connecting substrate 20. The protective film 42 is adhered to the side of the connecting board 20 where the coaxial cable 30 is provided. In this embodiment, the protective film 42 is composed of the resin film 41, the sheath 34, the outer conductor 33, the inner insulator 32, the central conductor 31, and the connecting substrate 20, As shown in Fig. The protective film 42 protects the coaxial cable 30 exposed from the resin film 41. The protection film 42 can prevent the central conductor 31 from being peeled off or between the center conductor 31 or between the center conductor 31 and the outer conductor 33. [ The electrical characteristics of the wiring member 1 can be easily maintained. In the present embodiment, an example in which the protective film 42 is provided is described, but this may not be provided.

According to the wiring member 1 according to the present embodiment, a plurality of coaxial cables 30 are held in parallel by the resin film 41. As a result, the coaxial cable 30 can be easily wired in a parallel state to the wired space. Even if the resin film 41 is adhered to maintain the parallel state of the coaxial cable 30, the restoring force at the time of bending becomes lower in the non-laminate portion 40 than in the other portions, 40, a good bending performance is obtained. Thus, by arranging the non-laminate portion 40 in the movable portion of the apparatus, the apparatus can be smoothly operated. In addition, since the non-laminate portion 40 can easily bend, it is possible to bend wiring in a narrow wiring path.

In the above embodiment, the unlabelled portion 40 is provided at a position where the front and back sides of the coaxial flat cable 10 are different from each other. However, as shown in Fig. 6, The nate portion 40 may be provided. In this case, in the non-laminate portion 40, the resin films 41 on the front and back surfaces are not present. Therefore, higher bending performance in the non-laminate portion 40 can be obtained.

Although the outer conductor 33 is electrically connected to the pad portion 25 by the solder 62 in the present embodiment, the outer conductor 33 is pressed and fixed to the pad portion 25 by the ground bar, The conductor 33 may be electrically connected to the pad portion 25.

Next, the manufacturing method of the wiring member 1 will be described step by step.

7 is a schematic configuration diagram of a laminating apparatus. 8 is a top view of the wiring member during manufacture. 9 (a) to 9 (d) are side cross-sectional views at the end portions of the coaxial flat cable 10, respectively.

(Arrangement process)

As shown in Fig. 7, a plurality of coaxial cables 30 are continuously arranged while being arranged in a planar shape.

(Laminating process)

A resin film 41 having a cable exposing window 41a and a non-laminate portion forming window 41b is formed on both sides of a parallel surface of a plurality of coaxial cables 30 to be continuously delivered while being arranged in a planar shape, And are adhered while being pressed by a pair of rollers 81. A plurality of coaxial flat cable film bodies 10a are formed by cutting along the longitudinal direction by the cutter 82. [

As shown in Fig. 8, the coaxial flat cable film body 10a is cut along the longitudinal direction of the extra resin film 41 on both sides thereof and removed to form a predetermined width dimension. Further, the center of the cable exposing window 41a in the longitudinal direction of the coaxial flat cable film body 10a is cut in the width direction. Thereby, a plurality of coaxial cables 30 are arranged at a predetermined pitch, and a coaxial flat cable 10 in which the resin film 41 is held in a parallel state is obtained. In the coaxial flat cable 10 thus obtained, the portion of the non-laminate portion forming window portion 41b becomes the non-laminate portion 40 in which the resin film 41 does not exist in the width direction.

It is also possible to stop the supply of one resin film to make the portion as the non-laminate portion 40.

(Terminal processing step)

The outer conductor 33 and the inner insulator 32 are formed at the ends of the coaxial cable 30 protruding from the end of the resin film 41 in the coaxial flat cable 10 as shown in Fig. And the center conductor 31 are sequentially exposed.

(Positioning Process)

The central conductor 31 of the coaxial cable 30 is placed on the signal terminal portion 22 and the outer conductor 33 of the coaxial cable 30 is placed on the pad portion 25 as shown in Fig. The coaxial flat cable 10 that has been subjected to the end treatment is positioned and disposed on the connecting board 20 so as to be positioned. Further, the end portions of the connecting substrate 20 and the resin film 41 are adhered to each other with the adhesive agent 51. [

(Conductor connecting step)

The external conductor 33 is soldered to the pad portion 25 as shown in Fig. 9 (c). After soldering of the external conductor 33 to the pad portion 25, the central conductor 31 is soldered to the signal terminal portion 22. Soldering is performed by pulse heating. Specifically, the solder 61, 62 is melted by momentarily heating the heater chip H pressed to the portion to be bonded. Further, rod-like solder 62 is arranged on the external conductor 33 along the arrangement direction, and the heater chip H is pressed and heated from above.

9 (d), the central conductor 31 is bonded to the signal terminal portion 22 by the solder 61, and the external conductor 33 is soldered to the pad portion 25 ). Each of the outer conductors 33 of the parallel coaxial cables 30 is soldered by the solder 62 over the arrangement direction of the coaxial cables 30 and connected to each other.

A solder 62 is attached to the pad portion 25 for soldering the external conductor 33 in advance. The external conductor 33 can be well and smoothly soldered to the pad portion 25 by previously attaching the solder 62 to the pad portion 25. [ It is also possible to attach the solder 61 to the signal terminal portion 22 for soldering the center conductor 31 in advance.

(Protective film adhesion process)

The resin film 41 and the protective film 34 are formed so as to span the outer conductor 34, the inner conductor 32, the central conductor 31 and the connecting board 20 exposed from the resin film 41, 42). The portion of the coaxial cable 30 closer to the tip side than the exposed external conductor 33 is covered with the protective film 42 made of resin so that the coaxial cable 30 exposed from the resin film 41 is protected 5).

By the above-described process, the wiring member 1 can be manufactured in a narrow space and can be used for wiring to a movable portion or a bent portion.

(Example)

The bending evaluation of the wiring member was carried out.

(Evaluation sample)

The wiring member 1 in which the non-laminate portion 40 is not provided is used as the evaluation sample in Example 1 (comparative example) and the wiring member 1 in which the non-laminate portion 40 is provided in one resin film 41 The evaluation sample of Example 2 (Example) was used.

The wiring member 1 of Examples 1 and 2 is a coaxial flat cable 10 obtained by arranging 20 coaxial cables 30 in a planar shape and bonding the resin film 41 to both sides of the parallel face. As the coaxial cable 30, an AWG # 44 having an outer diameter of 0.22 mm was used, and a resin film 41 having a base thickness of 12 mu m and an insulation member of 40 mu m was used. The coaxial cable for propagating the differential signal has two pairs, and the interval of the other pairs of coaxial cables adjacent to each other is wider than the interval of the coaxial cables in the pair.

(Assessment Methods)

10A is a side view showing a state in which a load W is applied to the wiring member 1 so as to bend it and FIG. 10B is a side view showing a state in which the wiring member 1 is bent, In which the load W is released from the bent state.

10A, a load W is applied to the wiring member 1, the wiring member 1 is bent to 180 degrees, and after the load W is released as shown in Fig. 10 (b) The return angle? Of the wiring member 1 was measured. The measurement was made in the case where the metal rod P having a diameter of 2 mm was disposed inside the bent portion and the case where the metal rod P was not disposed. In Example 2, when the unlaminated portion 40 is bent with the coaxial cable 30 inwardly bent and the unlaminated portion 40 is bent with the coaxial cable 30 outside the bending portion, . The bending evaluation was carried out three times using three samples under the respective conditions.

(Evaluation results)

The evaluation results are shown in Table 1 and Table 2.

Figure 112015042228301-pat00001

Figure 112015042228301-pat00002

In Example 1, when the metal rod P was arranged at the bent portion, the return angle? Of all the samples (first to third times) was 135 degrees, and the metal bars P were not arranged at the bent portions. 1 to 3), the return angle? Was 60 degrees. As described above, it was found that the wiring member 1 having no non-laminate portion 40 has a strong repulsive force and is difficult to bend as required.

On the other hand, in Example 2 (inside the cable), when the metal rod P is arranged at the bent portion, the return angle? Is 90 degrees in all samples (first to third times) and the metal rod P is arranged at the bent portion , And the return angle? Was 45 degrees in all the samples (first to third times). In Example 2 (outside the cable), when the metal rod P was arranged at the bent portion, the return angle? Was 60 degrees in all the samples (first to third times), and the metal rod P was not disposed at the bent portion As a case, the return angle? Was 15 degrees in all the samples (first to third times). As described above, in the wiring member 1 having the non-laminate portion 40, the repelling force was weakened by providing the non-laminate portion 40, and it was found that good bending performance could be obtained. Particularly, it was found that when the unlaminated portion 40 is bent, the coaxial cable 30 is made to be outside the bending, thereby obtaining better bending performance.

Further, the present invention is not limited to the above-described embodiment, but can be appropriately modified, improved, and the like. In addition, the material, shape, dimensions, numerical values, form, number, arrangement place, etc. of each constituent element in the above-described embodiments are not limited as long as they can achieve the present invention.

For example, in the above example, the configuration example (see also Fig. 1) in which the end portion in the longitudinal direction of the resin film 41 is bonded to the connection substrate 20 via the adhesive 51 has been described. However, Do not. A part of the envelope 34 is exposed from the end portion in the longitudinal direction of the resin film 41 so that the exposed portion of the envelope 34 and the connecting board 20 are bonded to each other via the adhesive 51 It may be bonded. The distance between the central conductor 31 and the surface of the connecting board 20 is shortened and the distance between the center conductor 31 and the surface of the connecting board 20 is shortened, The center conductor 31 can be soldered to the signal terminal portion 22 without significantly bending.

11, a reinforcing film 43 made of resin may be bonded over the resin film 41 and the connecting substrate 20. [ The reinforcing film 43 is adhered to the surface of the connecting board 20 opposite to the side where the coaxial cable 30 is provided. The strength of the connection portion of the coaxial flat cable 10 and the connecting board 20 can be increased by the reinforcing film 43. [

10: Coaxial flat cable
20:
22: Signal terminal
25: Pad portion (ground portion)
30: Coaxial cable
31: center conductor
32: Internal insulator
33: External conductor
34: envelope
39: laminate part
40: non-laminate part
41: Resin film
42: Shield

Claims (13)

A plurality of coaxial cables having a central conductor, an inner insulator disposed on an outer periphery of the central conductor, an outer conductor disposed on an outer periphery of the inner insulator, an outer shell disposed on an outer periphery of the outer conductor, And a coaxial flat cable having a resin film bonded to at least one of the parallel surfaces of the coaxial cables to maintain a parallel state of the plurality of coaxial cables,
The coaxial flat cable includes:
Wherein the coaxial cable is a flat cable in which the coaxial cables are arranged in parallel from one end to the other end,
A non-laminate portion in at least one of the longitudinal direction of the coaxial flat cable in at least one of the front and back surfaces of the parallel surface, wherein the resin film does not exist in the width direction,
Wherein the resin film has a laminate portion bonded to the coaxial cable on one side of the front and back surfaces of the parallel side,
The non-laminate portion being located between the laminate portions,
With the laminate portion longer than the non-laminate portion
Wiring member.
The method according to claim 1,
Wherein the resin film is bonded to both sides of the parallel sides of the plurality of coaxial cables arranged in a planar shape and the unlaminated portion is bonded to both sides of both sides of the parallel face by at least one .
The method according to claim 1,
Wherein the resin film is bonded to both sides of the parallel sides of the plurality of coaxial cables arranged in a planar shape and the unlaminated portion is bonded to the parallel side of the coaxial flat cable in the longitudinal direction of the coaxial flat cable, Are provided at the same positions on the front and back sides of the wiring member.
4. The method according to any one of claims 1 to 3,
Wherein the two coaxial cables are paired and the interval between the two coaxial cables in the pair is narrower than the interval between the other pairs of coaxial cables adjacent to each other.
4. The method according to any one of claims 1 to 3,
And a connecting board connected to at least one end of the coaxial flat cable in the longitudinal direction,
Wherein an end of the coaxial cable is exposed in order from the outer conductor, the inner insulator, and the center conductor,
Wherein the connecting board has a signal terminal portion and a ground portion, the center conductor is soldered to the signal terminal portion, and the external conductor is electrically connected to the ground portion.
6. The method of claim 5,
Wherein the coaxial cable extends linearly and is connected to the signal terminal portion, and a coaxial cable is not disposed at a portion extending from the ground terminal portion.
The method according to claim 6,
Wherein the signal terminal portion has two pairs adjacent to each other, and a ground terminal portion is disposed on both sides of the pair of signal terminals.
6. The method of claim 5,
And the end portion of the resin film is adhered and fixed to the connecting board.
6. The method of claim 5,
Wherein an end of the resin film and an end of the connecting board on the side of the resin film are covered with a reinforcing film.
6. The method of claim 5,
Wherein at least a part of the coaxial cable at the distal end side of the exposed outer conductor is covered with a protective film.
4. The method according to any one of claims 1 to 3,
Wherein the length of the coaxial flat cable in the longitudinal direction of the non-laminate portion is not less than 3 mm and not more than 15 mm.
5. The method of claim 4,
Wherein the length of the coaxial flat cable in the longitudinal direction of the non-laminate portion is not less than 3 mm and not more than 15 mm.
6. The method of claim 5,
Wherein the length of the coaxial flat cable in the longitudinal direction of the non-laminate portion is not less than 3 mm and not more than 15 mm.
KR1020150061244A 2015-04-30 2015-04-30 Wiring member KR101749803B1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013251223A (en) * 2012-06-04 2013-12-12 Sumitomo Electric Ind Ltd Multi-core cable and wire arrangement method of the same
JP5463948B2 (en) * 2010-02-19 2014-04-09 住友電気工業株式会社 Multistage coaxial cable harness and manufacturing method thereof
JP2014102905A (en) * 2012-11-16 2014-06-05 Hitachi Metals Ltd Cable assembly and manufacturing method therefor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5463948B2 (en) * 2010-02-19 2014-04-09 住友電気工業株式会社 Multistage coaxial cable harness and manufacturing method thereof
JP2013251223A (en) * 2012-06-04 2013-12-12 Sumitomo Electric Ind Ltd Multi-core cable and wire arrangement method of the same
JP2014102905A (en) * 2012-11-16 2014-06-05 Hitachi Metals Ltd Cable assembly and manufacturing method therefor

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