JP2010097773A - Combined cable, and combined cable assembly - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combined cable in which further efficient connection work can be carried out. <P>SOLUTION: The combined cable 10 includes: a combined cable core 18 in which a plurality of flat cables 12, 14, 16 having flat cable cores in which a plurality of coaxial cables 12a-12d, 14a-14e, 16a-16e etc. are arranged in a row nearly parallel and sheath layers 13, 15, 17 which are formed at the outer circumference of the flat cable cores by coating a synthetic resin on nearly whole face and bind the plurality of coaxial cables 12a-12d, 14a-14e, 16a-16e, are provided; an electromagnetic shield part 24 which is installed at the outer circumference of the combined cable core 18; and an envelope layer 26 which is installed at the outer circumference of the electromagnetic shield part 24. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an aggregate cable and an aggregate cable assembly in which a plurality of signal lines are aggregated.

  In recent years, electronic devices typified by mobile phones have been rapidly reduced in size, weight, and functionality. Electronic devices are equipped with a large number of IC chips, the transmission capacity is increased, and the transmission speed is increasing. Among them, in particular, since the transmission frequency is increased, the electric signal noise in the electronic equipment also increases, so that an electric signal transmission medium is required to have excellent electromagnetic wave shielding characteristics. The For this reason, as an internal wiring material of an electronic device, an assembly of an ultrafine coaxial cable or the like excellent in electromagnetic wave shielding (shielding) characteristics is used.

  In addition, since a clear image is required also in an endoscope system, an aggregate cable in which a plurality of ultrafine coaxial cables having excellent high-frequency characteristics are aggregated is used. The ultrafine coaxial cable is generally a cable having a central conductor size smaller than AWG40 (seven twist of 30 μm line) and a cable diameter of 0.4 mm or less. In the endoscope system, an aggregate cable is used in which ten or more such micro coaxial cables are aggregated into one cable. Such a collective cable is generally formed with a cable diameter of 2 mm to 3 mm.

  2. Description of the Related Art Conventionally, among aggregate cables, one that requires flexibility is one in which a plurality of micro coaxial cables are assembled together by a bundling strip to form an aggregate cable. In this aggregate cable, the cable insulation, jacket, and bundling strip are colored in different colors for each coaxial cable and aggregate, and the cable is discriminated by visualizing the color (Patent Document) 1).

  As a collective cable that reduces the types of colors used for discrimination, multiple ultra-fine coaxial cables are bonded in parallel with non-adhesive parts where adjacent micro-coaxial cables are not fixed, and adjacent micro-coaxial cables are fixed. There is a collective cable that is a flat cable divided into parts and assembled into a round cable. In this collective cable, only the two side cables are colored, and individual cables can be selected by discriminating the colors (see Patent Document 2).

In addition, the weft filament and warp filament of an ultra-thin flat cable formed by weaving a plurality of extra-fine coaxial cables with weft filaments and warp filaments are colored to form a weft filament for identification and a warp filament for identification. A collective cable with improved workability during terminal work is shown (see Patent Document 3).
JP 2003-157731 A JP 2003-123552 A JP 2007-257889 A

  By the way, in a collective cable in which a plurality of coaxial cables are bundled and assembled, when connecting the collective cable to a terminal such as a connector, a plurality of coaxial cables included in the collective cable are led out, A coaxial cable or the like is visually identified, and a plurality of identified coaxial cables or the like are arranged in parallel to perform connection work.

  Here, when the number of coaxial cables or the like constituting the collective cable increases, the wire-straightening operation for arranging the coaxial cables or the like in parallel becomes complicated. Further, when the number of coaxial cables constituting the aggregate cable increases, it is necessary to color the coaxial cables with more colors, so that the coloring work becomes complicated and the productivity of the aggregate cable may be reduced. . In addition, when connecting the coaxial cables or the like constituting the assembly cable, the operation of discriminating the coaxial cables or the like may be complicated if the number of colored coaxial cables or the like increases. As a result, more work time may be required for connecting the assembly cables.

  Accordingly, an object of the present invention is to provide a collective cable and a collective cable assembly in which workability at the time of cable connection is further improved.

  An aggregate cable according to the present invention is formed by a flat cable core in which a plurality of signal lines are arranged in a line substantially in parallel, and an outer periphery of the flat cable core is formed by covering substantially the entire surface with a synthetic resin, and restrains the plurality of signal lines. A flat cable having a constraining layer includes a plurality of aggregated cable cores, an electromagnetic shield part provided on the outer periphery of the aggregated cable core, and a skin layer provided on the outer periphery of the electromagnetic shield part. And

  In the cable assembly according to the present invention, it is preferable that the constraining layer is formed by extruding the synthetic resin.

  In the collective cable according to the present invention, it is preferable that the plurality of signal lines are at least one of a coaxial cable and a discrete line.

  In the collective cable according to the present invention, the coaxial cable is provided on a central conductor, an inner insulating layer provided on an outer periphery of the central conductor, an outer conductor provided on an outer periphery of the inner insulating layer, and an outer periphery of the outer conductor. The outer insulating layer is preferably formed of the same material as the synthetic resin forming the constraining layer.

  In the aggregate cable according to the present invention, it is preferable that the aggregate cable core further includes a single core wire.

  In the collective cable according to the present invention, it is preferable that at least one of the plurality of signal lines is colored.

  In the collective cable according to the present invention, it is preferable that a signal line placed at one end of the plurality of signal lines is colored.

  In the collective cable according to the present invention, it is preferable that the plurality of flat cables have the constraining layers colored in different colors.

  An aggregate cable assembly according to the present invention is characterized in that the aggregate cable described in any one of the above is connected and assembled.

  According to the collective cable and the collective cable assembly in the above configuration, since a plurality of flat cables in which a plurality of signal lines are arranged in a row and restrained are bundled, the cable connection is performed when connecting the collective cable. Workability is further improved.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view showing the configuration of the aggregate cable 10. The collective cable 10 is provided on the outer periphery of the first shield layer 20 and the first shield layer 20 provided on the outer periphery of the collective cable core 18, the collective cable core 18 including a plurality of flat cables 12, 14, and 16. The electromagnetic shield part 24 which has the 2nd shield layer 22 and the outer skin layer 26 provided in the outer periphery of the electromagnetic shield part 24 are provided.

  First, the form of the flat cables 12, 14, 16 will be described. FIG. 2 is a cross-sectional view showing the configuration of the flat cable 30 according to the first embodiment.

  The flat cable 30 according to the first embodiment includes a plurality of signal lines, for example, a flat cable core 33 in which a plurality of coaxial cables 32 are arranged in a line substantially in parallel, and a synthetic resin is substantially entirely covered on the outer periphery of the flat cable core 33. And a sheath layer 34 (covering material) having a function as a constraining layer that constrains a plurality of coaxial cables 32.

  In FIG. 2, the flat cable core 33 is configured by four coaxial cables 32, but the number of the coaxial cables 32 configuring the flat cable core 33 is not limited to four, and the size of the coaxial cable 32 is not limited. It can be arbitrarily selected according to the relationship with (thickness). Moreover, although the flat cable core 33 shown in FIG. 2 is all comprised by the coaxial cable 32, it is not limited to the structure only of the coaxial cable 32. FIG. The flat cable core 33 may be configured by all signal lines other than the coaxial cable 32 such as a discrete line, a power supply signal line, and an optical cable, or the coaxial cable 32 and a signal line other than the coaxial cable 32 described above. , May be combined. Here, the discrete wire is an electric wire such as a single core wire or a stranded wire, and is composed of, for example, a central conductor and an insulator.

  The coaxial cable 32 includes a central conductor 36, an inner insulating layer 38 provided on the outer periphery of the central conductor 36, an outer conductor 40 provided on the outer periphery of the inner insulating layer 38, and an outer insulating layer provided on the outer periphery of the outer conductor 40. A certain jacket 42 is formed. The type of the coaxial cable 32 to be used and the combination of the winding direction of the outer conductor 40 are not particularly limited, but the center conductor 36 is preferably a cable having an AWG (American Wire Gauge) 36 or less, and the AWG 42 or less. More preferably, it is a cable. Thus, the coaxial cable 32 is preferably an extra fine coaxial cable. The material of the inner insulating layer 38 is preferably a fluororesin, and more preferably PFA (tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer: melting point 300 ° C.). For the outer conductor 40, it is preferable to use a braided material obtained by twisting a conductive tape or a metal wire in a net shape. The material of the jacket 42 is preferably a fluororesin, and more preferably PFA or ETFE (ethylene-tetrafluoroethylene copolymer: 260 ° C.).

  As shown in FIG. 2, the sheath layer 34 is provided so that the cross-sectional shape is a racetrack shape. Both the outer side surface 34A and the inner side surface 34B of the pair of substantially straight portions are substantially flat, and the cable shape of the coaxial cable 32 is not transferred. Further, the adjacent contact portions 32a of the coaxial cables 32 are not fused.

  The sheath layer 34 restrains the four coaxial cables 32 and restricts movement such as jumping over the adjacent coaxial cables 32. Thus, the sheath layer 34 functions as a constraining layer that constrains the plurality of coaxial cables 32. In the contact portion 34a between the sheath layer 34 and the coaxial cable 32, the coaxial cable 32 and the sheath layer 34 are in contact, but are not fused with a synthetic resin. In the present embodiment, the synthetic resin constituting the sheath layer 34 is not filled between the sheath layer 34 and the coaxial cable 32, and there is a gap 44, but this configuration is limited. There is nothing. For example, the gap 44 may be filled with a synthetic resin or the like that improves the flexibility of the flat cable and the bending durability.

  The sheath layer 34 is formed by covering the entire surface of the flat cable core 33 with a synthetic resin. As the synthetic resin for forming the sheath layer 34, it is preferable to use a fluororesin. The fluororesin is preferable in that it is easy to form a thin wall, and is preferable in that it reduces the frictional resistance of the outer peripheral surface and the inner peripheral surface of the sheath layer 34 and does not hinder the flexibility of the flat cable. Moreover, it is more preferable to use ETFE for the fluororesin. Here, ETFE has a melting point of 225 ° C., a tensile strength (20 ° C.) of 38 MPa, and a tensile elongation (20 ° C.) of 420%, and PFA has a melting point of 302 ° C. to 310 ° C., a tensile strength (20 ° C.) of 29 MPa, a tensile elongation Degree (20 ° C.) is 390%. Thus, ETFE is superior in tensile strength and tensile elongation compared to PFA. Therefore, the mechanical characteristics of the cable can be improved when ETFE is used for the sheath layer 34 than when PFA is used for the sheath layer 34. Also, when ETFE is used for the sheath layer 34, the melting point is lower than that of PFA, so the sheath layer 34 can be excised even if the output of the carbonic acid laser is small, which ensures work safety and reduces manufacturing costs. This is preferable.

  The synthetic resin forming the sheath layer 34 and the synthetic resin forming the jacket 42 of the coaxial cable 32 are preferably the same synthetic resin. This is because the sheathing layer 34 and the jacket 42 can be peeled off together by laser processing or the like at the time of connecting the collective cable 10 so that the mouthing operation can be performed easily. For example, when ETFE is used for the synthetic resin forming the jacket 42 of the coaxial cable 32, it is preferable to use ETFE for the synthetic resin forming the sheath layer 34. When only the sheath layer 34 is cut off and peeled off, the difference in melting point between the synthetic resin used for the sheath layer 34 and the synthetic resin used for the jacket 42 is preferably 30 ° C. or higher, and 50 ° C. or higher. More preferably. If the melting point difference is 30 ° C. or more, only the sheath layer 34 can be selectively cut using a carbonic acid laser or the like, and only the sheath layer 34 is cut without fusing the contact portion between the sheath layer 34 and the jacket 42. And can be peeled off.

  The sheath layer 34 is formed by covering substantially the entire outer periphery of the flat cable core 33. By forming the sheath layer 34 on the outer periphery of the flat cable core 33 so as to cover almost the entire surface, the sheath layer 34 can be extracted at any position during the extraction operation. For example, in the case of a cable in which adjacent coaxial cables are fixed at a predetermined interval and made flat, it is necessary to lead out at a fixed position where the adjacent coaxial cables are fixed in order to prevent the coaxial cables from being separated. is there. On the other hand, in the case of the sheath layer 34 formed by covering substantially the entire outer periphery of the flat cable core 33, the plurality of coaxial cables 32 are restrained by the sheath layer 34 at any position. Therefore, there is no restriction on the extraction position as described above, and the extraction operation can be easily performed.

  The covering method of the sheath layer 34 is preferably a covering method in which a synthetic resin is extruded and collectively covered on a flat cable core 33 in which four coaxial cables 32 are arranged in a line in parallel. According to the extrusion molding of the synthetic resin, it is possible to easily cover the outer periphery of the flat cable core 33 with the synthetic resin and cover the four coaxial cables 32 at a time. For example, rather than a restraining method in which a coaxial cable is woven with weft yarns and warp yarns to restrain the coaxial cable, a plurality of coaxial cables 32 can be collectively covered and restrained by extrusion molding of synthetic resin. Simplification can be achieved. For the extrusion molding of the synthetic resin, for example, a general extrusion molding apparatus that extrudes a sheath such as a sheathed electric wire with a thermoplastic resin or the like can be used. The thickness of the sheath layer 34 is not particularly limited, but is preferably in the range of 10 μm to 50 μm, and more preferably in the range of 20 μm to 30 μm. By setting the thickness of the sheath layer 34 in the range of 10 μm to 50 μm, the flat cable can ensure sufficient flexibility.

  Next, the flat cable 50 of a 2nd form is demonstrated. FIG. 3 is a cross-sectional view showing the configuration of the flat cable 50 according to the second embodiment.

  The flat cable 50 according to the second embodiment includes a flat cable core 33 in which four coaxial cables 32 are arranged in a line substantially in parallel, and an outer surface of the flat cable core 33 is substantially entirely covered to restrain the four coaxial cables 32. And a resin cable 52 having a function as a constraining layer. The number of the coaxial cables 32 forming the flat cable core 33 is not limited to four and can be arbitrarily selected.

  The resin tape 52 includes a resin film 54 and an adhesive material 56. The resin film 54 has a substantially linear cross-sectional shape, and both the outer side surface 54A and the inner side surface 54B of the pair of substantially linear portions are substantially flat. Note that the cable shape of the coaxial cable 32 is not transferred to the resin film 54. By covering substantially the entire outer periphery of the flat cable core 33 with the resin tape 52 and restraining the four coaxial cables 32, it is possible to lead out at any position during the lead-out operation. Therefore, there is no restriction on the position of the mouth and the mouth work can be easily performed.

  The gap between the resin film 54 and the coaxial cable 32 is filled with an adhesive material 56, and the plurality of coaxial cables 32 are restrained by the adhesive material 56 and cannot jump over other adjacent coaxial cables 32. Further, the resin film 54 and the coaxial cable 32 are bonded by an adhesive material 56. The outside of the coaxial cable 32 located at both ends is not covered with the resin film 54 and is only filled with the adhesive material 56.

  The material of the resin film 54 is not particularly limited, but a versatile synthetic resin such as polyethylene terephthalate resin (PET) can be applied, and it is more preferable to apply a synthetic resin excellent in bending characteristics. The thickness of the resin film 54 is not particularly limited, but is preferably in the range of 12 μm to 50 μm.

  The material of the adhesive material 56 is not particularly limited, but it is preferable to apply a silicon-based adhesive material 56 or the like in order to ensure close contact with the fluororesin used for the jacket 42 of the coaxial cable 32. Furthermore, it is more preferable to apply a resin that improves the flexibility of the flat cable and the bending durability. The thickness of the adhesive material 56 is not particularly limited, but is preferably in the range of 10 μm to 30 μm.

  The coating method of the resin tape 52 is not particularly limited, but it is preferable that the coaxial cables 32 are arranged in a row in parallel with four cores and collectively covered by lamination. The total thickness of the resin tape 52 is not particularly limited, but is preferably in the range of 20 μm to 80 μm, and more preferably in the range of 30 μm to 50 μm. When the overall thickness of the resin tape 52 is in the range of 30 μm to 50 μm, the flat cable can ensure sufficient flexibility.

  Returning to FIG. 1 again, as described above, the collective cable 10 includes the collective cable core 18 composed of the plurality of flat cables 12, 14, and 16 and the first shield layer 20 provided on the outer periphery of the collective cable core 18. And an electromagnetic shield part 24 having a second shield layer 22 provided on the outer periphery of the first shield layer 20, and a skin layer 26 provided outside the electromagnetic shield part 24.

  The collective cable core 18 is composed of three flat cables 12, 14, and 16. Of course, the number of flat cables constituting the aggregated cable core 18 is not limited to three, and may be two or five. In addition, the collective cable core 18 may be configured to include the flat cables 12, 14, and 16 and a single core wire (not shown) that is not formed into a flat cable.

  The flat cables 12, 14, and 16 are configured by the flat cable 30 of the first form described above. The flat cable 12 is formed by covering a substantially entire surface with a synthetic resin on a flat cable core formed by coaxial cables 12a to 12d, which are four signal lines arranged in a line substantially in parallel, and an outer periphery of the flat cable core. And a sheath layer 13 having a function as a constraining layer for constraining the four coaxial cables 12a to 12d. The flat cable 14 is formed by covering a substantially entire surface with a synthetic resin on a flat cable core formed by coaxial cables 14a to 14e, which are five signal lines arranged in a line substantially in parallel, and on the outer periphery of the flat cable core. And a sheath layer 15 having a function as a constraining layer for constraining the five coaxial cables 14a to 14e. The flat cable 16 is formed by covering a substantially entire surface with a synthetic resin on a flat cable core formed by coaxial cables 16a to 16e, which are five signal lines arranged in a line substantially in parallel. And a sheath layer 17 having a function as a constraining layer for constraining the five coaxial cables 16a to 16e.

  For the flat cables 12, 14, and 16, a plurality of flat cables of the same form described above may be used, or flat cables of different forms may be combined. For example, the flat cables 12, 14, and 16 may all be configured by the flat cable 30 of the first form, or may be configured by combining the flat cable 30 of the first form and the flat cable 50 of the second form. May be.

  As for the flat cables 12, 14, and 16, all the flat cables may be composed of coaxial cables, or all may be composed of discrete wires. The flat cables 12, 14, and 16 may be formed by combining any flat cable with a coaxial cable and a discrete wire.

  The collective cable core 18 is preferably formed by bundling three flat cables 12, 14, and 16 and having a substantially circular cross section. Of course, depending on other conditions, the aggregate cable core 18 may be formed by laminating or folding the flat cables 12, 14, and 16. Moreover, the adjacent flat cables 12, 14, and 16 may be fixed by, for example, an adhesive, or may be merely brought into contact without being fixed. Further, the gap between the aggregate cable cores 18 may be filled with a synthetic resin or the like.

  In the flat cables 12, 14, and 16, it is preferable that the sheath layers 13, 15, and 17 are colored in different colors. For example, the sheath layer 13 of the flat cable 12 is colored in blue, the sheath layer 15 of the flat cable 14 is colored in yellow, and the sheath layer 17 of the flat cable 16 is colored in red. The sheath layers 13, 15, and 17 are colored with visually identifiable colors different from those of the other sheath layers, so that the flat cable 12, the flat cable 14, and the flat cable 16 are processed during terminal processing of the aggregate cable 10. Can be easily identified visually.

  The sheath layers 13, 15, and 17 are colored by, for example, extrusion molding with an extruder using a synthetic resin to which a pigment or the like is added. Of course, the sheath layers 13, 15, and 17 may be colored by applying a colored paint or the like. When the flat cable 50 of the second form is used for the flat cables 12, 14, 16, the resin film 54 of the resin tape 52 is colored.

  The plurality of coaxial cables constituting the flat cables 12, 14, 16 are preferably colored at least one of the coaxial cables, and more preferably colored at one end or the other end of the coaxial cables arranged in parallel. preferable. Thus, since the plurality of coaxial cables are arranged in a line by coloring the reference coaxial cable among the plurality of coaxial cables constituting the flat cables 12, 14, 16, the terminal of the collective cable 10. At the time of processing operation, it is possible to easily visually determine the other coaxial cable other than the reference coaxial cable.

  For example, in the flat cable 12, among the coaxial cables 12a to 12d, the jacket of the coaxial cable 12a at one end arranged in a line in parallel is colored blue. In the flat cable 14, the jacket of the coaxial cable 14a at one end arranged in a line in parallel among the coaxial cables 14a to 14e is colored yellow. In the flat cable 16, the jacket of the coaxial cable 16a at one end arranged in a line in parallel among the coaxial cables 16a to 16e is colored red. As a result, the coaxial cable 12a colored in blue as a reference can be easily visually identified in the flat cable 12 during the terminal processing operation of the aggregate cable 10, and the coaxial colored in yellow as a reference in the flat cable 14. The cable 14a can be easily discriminated visually, and the flat cable 16 can easily discriminate the coaxial cable 16a colored in red as a reference. Further, as described above, it is preferable from the viewpoint of discrimination that the sheath layer of the flat cable and the jacket of the coaxial cable constituting the flat cable are colored in substantially the same color. Of course, depending on other conditions, the sheath layer of the flat cable and the jacket of the coaxial cable constituting the flat cable may be colored in different colors.

  The jackets of the coaxial cables 12a, 14a, and 16a may be colored by molding using a synthetic resin to which a pigment or the like is added, as in the case of coloring the sheath layers 13, 15, and 17. It may be colored in the same manner.

  The electromagnetic shield part 24 is provided on the outer periphery of the collective cable core 18 and has a function of preventing leakage of radio signals transmitted through the flat cables 12, 14, and 16 and a function of preventing entry of external radio waves. The electromagnetic shield part 24 includes a first shield layer 20 provided on the outer periphery of the collective cable core 18 and a second shield layer 22 provided on the outer periphery of the first shield layer 20.

  The first shield layer 20 is formed by, for example, spirally winding, laterally winding, or vertically attaching a conductive tape having electromagnetic shielding properties to the aggregate cable core 18. As such a conductive tape, a metal-coated resin tape such as a copper mylar tape or an aluminum mylar tape is used. For winding the conductive tape, a tape winding device generally used in the manufacture of transmission cables can be used.

  The second shield layer 22 is provided on the outer periphery of the first shield layer 20 and has a function of further improving electromagnetic shielding properties. For the second shield layer 22, for example, a braided material obtained by twisting a wire obtained by tinning an annealed copper wire in a net shape is used.

  The outer skin layer 26 is provided on the outer periphery of the electromagnetic shield part 24 and has a function of protecting the collective cable core 18 and the electromagnetic shield part 24. The outer skin layer 26 is formed by, for example, extrusion molding of a synthetic resin such as polyethylene resin, polypropylene resin, fluororesin, or polyvinyl chloride resin. For the extrusion molding of the synthetic resin, for example, a general extrusion molding apparatus that extrudes a sheath such as a sheathed electric wire with a thermoplastic resin or the like can be used.

  Next, the assembly cable assembly 70 incorporating the assembly cable 10 having the above configuration will be described. FIG. 4 is a view showing a configuration of the assembly cable assembly 70. The collective cable assembly 70 includes a printed wiring board 72 such as a flexible printed wiring board, and the collective cable 10 connected to the printed wiring board 72.

  The printed wiring board 72 includes a first coaxial cable connection terminal portion 74 to which the coaxial cables 12a to 12d, 14a to 14e, and 16a to 16e included in the aggregate cable 10 are connected, a second coaxial cable connection terminal portion 76, 3 coaxial cable connection terminal portions 78.

  The first coaxial cable connection terminal portion 74 has four connection terminals 74 a to 74 d to which the coaxial cables 12 a to 12 d constituting the flat cable 12 are connected. The second coaxial cable connection terminal portion 76 has five connection terminals 76a to 76e to which the coaxial cables 14a to 14e constituting the flat cable 14 are connected. The third coaxial cable connection terminal portion 78 has five connection terminals 78a to 78e to which the coaxial cables 16a to 16e constituting the flat cable 16 are connected.

  In the assembled cable 10, first, the outer skin layer 26 connected to the printed wiring board 72 is removed by laser processing or the like, the braided material that is the electromagnetic shield portion 24 is folded back, and the metal tape or the like is removed. As a result, the terminal portions of the flat cables 12, 14, and 16 connected to the printed wiring board 72 are exposed.

  Since the sheath layers 13, 15, and 17 of the flat cables 12, 14, and 16 are colored with different colors to visually identify the flat cables, the flat cable 12 with the sheath layer 13 colored in blue is The flat cable 14 is composed of coaxial cables 12 a to 12 d connected to the first coaxial cable connection terminal portion 74, and the flat cable 14 in which the sheath layer 15 is colored yellow is connected to the second coaxial cable connection terminal portion 76. The flat cable 16 is composed of coaxial cables 14a to 14e to be connected, and the flat cable 16 in which the sheath layer 17 is colored red is composed of the coaxial cables 16a to 16e connected to the third coaxial cable connection terminal portion 78. It can be easily identified visually that it is a flat cable.

  Next, the end portions of the sheath layers 13, 15, and 17 in the flat cables 12, 14, and 16, respectively, and the end portions of the jackets in the plurality of coaxial cables that constitute the flat cables 12, 14, and 16 are processed by laser processing or the like. Remove and poke. Here, since the sheath layers 13, 15, and 17 are formed by covering the entire surface of the flat cable core with a synthetic resin on the entire surface, the sheath layers 13, 15, and 17 can be opened at any position without being limited by the opening position.

  When the sheath layers 13, 15, 17 and the jacket of the coaxial cable are formed of the same synthetic resin, the sheath layers 13, 15, 17 and the jacket 42 of the coaxial cable are laser processed once. Can be easily removed.

  When the sheath layers 13, 15, and 17 of the flat cables 12, 14, and 16 are removed, the plurality of coaxial cables 12a to 12d, 14a to 14e, and 16a to 16e constituting the flat cables 12, 14, and 16 are exposed. . Since the coaxial cables 12a to 12d, the coaxial cables 14a to 14e, and the coaxial cables 16a to 16e are arranged in a line in parallel, it is possible to easily perform a wire-lining operation for a plurality of coaxial cables. In addition, the coaxial cable 12a whose one end exposed from the flat cable 12 is colored blue, the coaxial cable 14a whose one end exposed from the flat cable 14 is colored yellow, and one end exposed from the flat cable 16a is red. The colored coaxial cable 16a can be easily visually identified because it is colored.

  Next, the coaxial cables 12a to 12d constituting the flat cable 12 are connected to the connection terminals 74a to 74d of the first coaxial cable connection terminal portion 74 with reference to the coaxial cable 12a colored in blue. Here, the connection terminal 74a of the first coaxial cable connection portion 74 for connecting the coaxial cable 12a colored in blue as a reference is determined in advance. Since the other uncolored coaxial cables 12b, 12c, 12d constituting the flat cable 12 are arranged in a line in parallel, they are sequentially connected to the connection terminals 74b to 74d from the blue colored coaxial cable 12a side. Is done.

  Next, the coaxial cables 14a to 14e constituting the flat cable 14 are connected to the connection terminals 76a to 76e of the second coaxial cable connection terminal portion 76 with the coaxial cable 14a colored in yellow as a reference. Here, the connection terminal 76a of the second coaxial cable connection terminal portion 76 for connecting the coaxial cable 14a colored yellow as a reference is determined in advance. Since the other uncolored coaxial cables 14b, 14c, 14d, and 14e constituting the flat cable 14 are arranged in a line in parallel, the connection terminals 76b to 76e are sequentially formed from the coaxial cable 14a colored yellow. Connected to.

  Next, the coaxial cables 16a to 16e constituting the flat cable 16 are connected to the connection terminals 78a to 78e of the third coaxial cable connection terminal portion 78 with the coaxial cable 16a colored in red as a reference. Here, the connection terminal 78a of the third coaxial cable connection terminal portion 78 for connecting the coaxial cable 16a colored in red as a reference is determined in advance. Since the other uncolored coaxial cables 16b, 16c, 16d, and 16e constituting the flat cable 16 are arranged in a line in parallel, the connection terminals 78b to 78e are sequentially arranged from the coaxial cable 16a colored in red. Connected to.

  Thus, the assembly of the assembly cable assembly 70 in which the assembly cable 10 and the printed wiring board 72 are connected is completed. In the printed wiring board 70 described above, the connection terminal portions are all coaxial cable connection terminal portions. However, when at least one of the flat cables 12, 14, and 16 is composed of a plurality of discrete wires, the connection terminals are coaxial. A discrete wire connection terminal portion is provided in place of the cable connection terminal portion.

  According to the above configuration, the collective cable is formed by covering a plurality of coaxial cables and the like with a flat cable core arranged substantially in parallel in a line, and covering the entire surface of the synthetic resin on the outer periphery of the flat cable core. A flat cable having a sheath layer that restrains the cable includes a plurality of aggregated cable cores, an electromagnetic shield part provided on the outer periphery of the aggregate cable core, and a skin layer provided on the outer periphery of the electromagnetic shield part As a result, the coaxial cable or the like led from the flat cable can be easily aligned in parallel, so that the workability at the time of connecting the collective cable is further improved.

  According to the above configuration, the sheath layer is formed by covering substantially the entire surface of the synthetic resin on the outer periphery of the flat cable core, and by restricting a plurality of coaxial cables or the like, the opening position is limited during the opening operation. Therefore, the workability at the time of connecting the assembly cable is further improved.

  According to the above configuration, since the sheath layer is formed by extruding the synthetic resin, the outer surface of the flat cable core can be covered with the synthetic resin all over the surface, so that the productivity of the aggregate cable is further improved. improves.

  According to the above configuration, since the same material is used for the synthetic resin that forms the jacket of the coaxial cable and the like and the synthetic resin that forms the sheath layer, it can be lumped together by laser processing. Workability during connection work is further improved.

  According to the above configuration, by coloring the coaxial cable at one end of the plurality of coaxial cables arranged in a line substantially in parallel, the other coaxial cables can be easily visually checked on the basis of the colored coaxial cable. Since it can be identified, the workability at the time of connecting the assembly cable is further improved.

  According to the above configuration, since the sheath that is a restraining member of the flat cable is colored with a color that can be distinguished from the other flat cable, the other flat cable can be easily visually identified. Workability in cable connection work is further improved.

In embodiment of this invention, it is sectional drawing which shows the structure of an assembly cable. In embodiment of this invention, it is sectional drawing which shows the structure of the flat cable of a 1st form. In embodiment of this invention, it is sectional drawing which shows the structure of the flat cable of a 2nd form. In embodiment of this invention, it is a figure which shows the structure of an assembly cable assembly.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Aggregate cable 12, 14, 16 Flat cable 18 Aggregate cable core 20 1st shield layer 22 2nd shield layer 24 Electromagnetic shield part 26 Outer skin layer 30 Flat cable of 1st form 32 Coaxial cable 33 Flat cable core 34 Sheath layer 34A Outside Side surface 34B Inner side surface 36 Central conductor 38 Inner insulating layer 40 Outer conductor 42 Jacket 44 Gap 50 Second form flat cable 52 Resin tape 54 Resin film 54A Outer side surface 54B Inner side surface 56 Adhesive material 70 Aggregate cable assembly 72 Printed wiring board 74 First 1 Coaxial cable connection terminal part 76 2nd coaxial cable connection terminal part 78 3rd coaxial cable connection terminal part

Claims (9)

A flat cable core in which a plurality of signal lines are arranged in a line substantially in parallel, and a constraining layer that is formed by covering substantially the entire surface of the flat cable core with a synthetic resin and restrains the plurality of signal lines. An aggregate cable core in which a plurality of cables are provided; and
An electromagnetic shield provided on the outer periphery of the assembly cable core;
An outer skin layer provided on the outer periphery of the electromagnetic shield part;
An aggregate cable comprising: The assembly cable according to claim 1,
The constraining layer is formed by extrusion molding the synthetic resin. The assembly cable according to claim 1 or 2,
The aggregated cable, wherein the plurality of signal lines are at least one of a coaxial cable and a discrete line. The assembly cable according to claim 3,
The coaxial cable includes a central conductor, an inner insulating layer provided on the outer periphery of the central conductor, an outer conductor provided on the outer periphery of the inner insulating layer, and an outer insulating layer provided on the outer periphery of the outer conductor. ,
The outer insulating layer is formed of the same material as the synthetic resin that forms the constraining layer. A cable assembly according to any one of claims 1 to 4,
The aggregate cable core further includes a single core wire. A cable assembly according to any one of claims 1 to 5,
An assembly cable, wherein at least one of the plurality of signal lines is colored. The assembly cable according to claim 6,
An assembly cable, wherein a signal line placed at one end of the plurality of signal lines is colored. A cable assembly according to any one of claims 1 to 7,
In the plurality of flat cables, the constraining layers are colored with different colors, respectively.   9. A collective cable assembly, wherein the collective cable according to claim 1 is connected and assembled.

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