WO2011010621A1 - Coaxial-cable harness - Google Patents

Coaxial-cable harness Download PDF

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Publication number
WO2011010621A1
WO2011010621A1 PCT/JP2010/062112 JP2010062112W WO2011010621A1 WO 2011010621 A1 WO2011010621 A1 WO 2011010621A1 JP 2010062112 W JP2010062112 W JP 2010062112W WO 2011010621 A1 WO2011010621 A1 WO 2011010621A1
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WO
WIPO (PCT)
Prior art keywords
signal line
coaxial cable
cable harness
coaxial
ground
Prior art date
Application number
PCT/JP2010/062112
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French (fr)
Japanese (ja)
Inventor
崇樹 遠藤
Original Assignee
住友電気工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 住友電気工業株式会社 filed Critical 住友電気工業株式会社
Priority to CN2010800021474A priority Critical patent/CN102099873B/en
Priority to KR1020117001440A priority patent/KR101678234B1/en
Publication of WO2011010621A1 publication Critical patent/WO2011010621A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
    • H01B11/20—Cables having a multiplicity of coaxial lines
    • 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
    • H01B7/0892—Flat or ribbon cables incorporated in a cable of non-flat configuration
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • 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
    • H01R9/0515—Connection to a rigid planar substrate, e.g. printed circuit board
    • 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
    • H01R9/0524—Connection to outer conductor by action of a clamping member, e.g. screw fastening means

Definitions

  • the present invention relates to a coaxial cable harness in which a plurality of coaxial cables are connected to a relay board.
  • connection fixation to the board, to the connector board arranged by alternately shifting the circuit pattern connected to the core wire and the shield part on the front and back facing surfaces, the unit cable from the end, for example, the front side of the connector board, It is known to alternately connect in the order of the back side, the front side, and the back side (see, for example, Patent Document 1).
  • an object of the present invention is to provide a coaxial cable harness that uses an electric wire having a diameter larger than the pitch of each wire of the connector portion and ensures good electrical characteristics.
  • the coaxial cable harness according to the present invention that can solve the above-mentioned problems is a center conductor, an inner insulator disposed on the outer periphery of the center conductor, an outer conductor disposed on the outer periphery of the inner insulator, and the outer
  • a coaxial cable harness comprising a plurality of coaxial cables having a jacket disposed on the outer periphery of a conductor, and a relay board to which at least one end of the coaxial cable is connected,
  • a plurality of the coaxial cables are connected to the front and back surfaces of the relay substrate,
  • the front and back surfaces of the relay substrate are arranged at a predetermined pitch and a plurality of signal line portions to which the central conductor is connected, a ground portion to which the outer conductor is connected, and between the ground portion and the signal line portion.
  • a guard ground portion extending to The arrangement position of the signal line part is shifted by a half pitch between the front and back of the relay board, the guard ground part is disposed on the opposite side of the signal line part in each connection surface,
  • the signal line portions are arranged at one end of the relay substrate at the predetermined pitch on the surface of the relay substrate, and a plurality of contacts that can be electrically connected to connector terminals are arranged between the signal line portions, and the relay The signal line portion on the back surface of the substrate is electrically connected to the contact through a through hole.
  • connection position of the center conductor in the signal line portion on the back surface of the relay board, is greater than the connection position of the center conductor on the surface of the relay board by the length of the through hole. It is preferable to be close to the through hole.
  • a plurality of coaxial cables can be connected to the front and back surfaces of the relay board. Since the guard ground portion is disposed between the signal line portions on the front and back sides of the relay substrate, electrical interference such as crosstalk between adjacent signal line portions can be suppressed. Further, the central conductor of the coaxial cable can be made thicker by the guard ground portion. That is, a coaxial cable harness that uses electric wires with a diameter larger than the pitch of each line of the connector portion and that ensures good electrical characteristics can be obtained.
  • FIG. 3A and 3B are cross-sectional views showing one end side of the coaxial cable harness according to the present invention, wherein FIG. 3A is a cross-sectional view taken along line AA in FIG. 3A, and FIG. 3B is a cross-sectional view taken along line BB in FIG. .
  • the coaxial cable harness according to the present invention may take various forms, such as when both ends are connected to the relay board, or when only one end is connected to the relay board and the other end is attached with a connector. A configuration in which one end side is connected to the relay board will be described.
  • the coaxial cable 11 constituting the coaxial cable harness includes a center conductor 12, an inner insulator 13 disposed on the outer periphery of the center conductor 12, and an outer conductor disposed on the outer periphery of the inner insulator 13. 14 and an outer sheath 14 disposed on the outer periphery of the outer conductor 14, and these are arranged coaxially.
  • the coaxial cable 11 for example, a cable thinner than the AWG 32 according to the standard of AWG (American Wire Gauge) is used.
  • the central conductor 12 is formed by twisting seven strands 12a of a tin-plated copper alloy or a silver-plated copper alloy having an outer diameter of 0.025 mm.
  • the internal insulator 13 is made of a fluororesin such as PFA, which covers the outer peripheral surface of the center conductor 12, and has an outer diameter of 0.17 mm.
  • the outer conductor 14 is formed to have an outer diameter of 0.23 mm by winding, for example, a tin-plated copper alloy wire 14 a having an outer diameter of 0.03 mm around the outer peripheral surface of the inner insulator 13 by lateral winding or braiding.
  • the outer jacket 15 is made of a fluororesin such as PFA for covering the outer peripheral surface of the outer conductor 14, and is formed to have an outer diameter of 0.31 mm in the case of AWG40 and about 1.0 mm in the case of AWG32. Yes.
  • the end portion of the coaxial cable 11 constituting the coaxial cable harness 10 is subjected to lead processing, and the center conductor 12, the inner insulator 13, and the outer conductor 14 are arranged in order from the tip side. A predetermined length is exposed stepwise.
  • the coaxial cable 11 is an aggregate arranged in a planar shape so that the coaxial cable 11 can be easily connected to the relay substrate 21 at the end, but may be bundled except at the end.
  • the front surface and the back surface of the relay substrate 21 are formed as connection surfaces 31 and 41, respectively, and a plurality of coaxial cables 11 are connected to the connection surfaces 31 and 41, respectively.
  • the relay substrate 21 is configured by, for example, a flexible substrate or a hard substrate having a wiring pattern such as a metal foil.
  • a signal line portion 32 that forms a plurality of strip-like wiring patterns at a predetermined parallel pitch P is formed on the connection surface 31 on the front surface side.
  • Each of the signal line portions 32 is formed to extend to the front end portion (front end in the connection direction) of the relay substrate 21, and the front end portion serves as a contact 32a.
  • the arrangement pitch P of the signal line portions 32 is preferably 0.3 mm or greater and 1.0 mm or less, for example.
  • the ground pattern 33 includes a ground portion 34 extending in the width direction on the rear end side from the signal line portion 32, and a plurality of belt-like shapes extending from the ground portion 34 toward the tip of the relay substrate 21 between the signal line portions 32. And a guard ground portion 35.
  • the guard ground portions 35 are also arranged at a predetermined pitch P in the width direction of the relay substrate 21.
  • the signal line portions 32 and the guard ground portions 35 are alternately arranged in the width direction with a slight gap therebetween.
  • connection surface 31 is provided with a contact 36 on the tip side of each guard ground portion 35 with a gap from the guard ground portion 35.
  • the contact 36 is electrically connected to the signal line portion 42 formed on the connection surface 41 on the back surface side through the through hole 37.
  • These contact points 36 are also arranged at a predetermined pitch P in the width direction of the relay substrate 21.
  • the coaxial cable 11 connected to the connection surface 31 is arranged at a predetermined pitch P in the width direction of the relay substrate 21, and the outer conductor 14 is arranged to connect to the ground portion 34.
  • the center conductor 12 of each coaxial cable 11 is soldered and connected to the rear end side of each signal line portion 32.
  • the connection between the signal line portion 32 and the central conductor 12 may be fixed by a conductive adhesive or the like instead of solder.
  • a ground bar 38 is attached to the connection surface 31 via the outer conductor 14 of the coaxial cable 11.
  • the outer conductor 14 of the coaxial cable 11 is sandwiched between the ground bar 38 and the relay substrate 21.
  • connection surface 41 on the back side is formed with signal line portions 42 that form a plurality of strip-like wiring patterns at a predetermined pitch P.
  • Each of the signal line portions 42 is formed to extend to the vicinity of the front end portion (front end in the connection direction) of the relay substrate 21, and the front end portion is electrically connected to the contact 36 on the connection surface 31 by the through hole 37.
  • a ground pattern 43 is formed on the connection surface 41.
  • the ground pattern 43 includes a ground portion 44 extending in the width direction on the rear end side from the signal line portion 42 and a plurality of strips extending from the ground portion 44 to the front end portion of the relay substrate 21 between the signal line portions 42.
  • the guard ground portions 45 are also arranged at a predetermined pitch P in the width direction of the relay substrate 21.
  • the signal line portions 42 and the guard ground portions 45 are alternately arranged in the width direction with a slight gap therebetween.
  • the coaxial cable 11 connected to the connection surface 41 is arranged at a predetermined pitch P in the width direction of the relay substrate 21, and the outer conductor 14 is arranged to connect to the ground portion 44.
  • the central conductor 12 of each coaxial cable 11 is soldered and connected to the rear end side of each signal line portion 42.
  • the connection between the signal line portion 42 and the central conductor 12 may be fixed by a conductive adhesive or the like instead of solder.
  • a ground bar 48 is attached to the connection surface 41 via the outer conductor 14 of the coaxial cable 11.
  • the outer conductor 14 of the coaxial cable 11 is sandwiched between the ground bar 48 and the relay substrate 21.
  • the guard ground portion 45 of the connection surface 41 is disposed on the back surface side of the signal line portion 32 of the connection surface 31. Further, the guard ground portion 35 of the connection surface 31 is disposed on the back surface side of the signal line portion 42 of the connection surface 41. Further, in the relay board 21 configured as described above, the coaxial cable 11 connected to the connection surface 31 and the coaxial cable 11 connected to the connection surface 41 are each half pitch (P / 2) in the width direction of the relay board 21. They are shifted and arranged alternately.
  • connection position B of the central conductor to the signal line portion 42 of the connection surface 41 is set to the plate thickness T of the relay substrate 21 with respect to the connection position A of the central conductor 12 to the signal line portion 32 of the connection surface 31.
  • the corresponding dimension X is the front side of the relay board 21. Therefore, the distance of the energization path from the connection position A to the contact 32a and the distance of the energization path from the connection position B to the contact 36 are the same distance.
  • the relay board 21 is connected to the receptacle of the connector provided on the circuit board of an electronic device or the like by inserting it from the front end side.
  • the contacts 32a and 36 of the relay substrate 21 are brought into conductive contact with the terminals on the receptacle side, and are conducted with the wiring on the circuit board side on which the receptacle is provided.
  • connection direction to the circuit board may be either a direction orthogonal to the surface of the circuit board or a direction along the surface of the circuit board.
  • the coaxial cable harness 10 has an L-shaped structure in which the connection positions of the coaxial cables 11 on the relay board 21 are along the longitudinal direction of the coaxial cable 11, but the connection positions of the coaxial cables 11 on the relay board 21 are A T-shaped structure orthogonal to the longitudinal direction of the coaxial cable 11 may be used.
  • the front and back surfaces of the relay substrate 21 are formed as connection surfaces 31 and 41 to which a plurality of coaxial cables 11 can be connected.
  • the pitch of each line of the connector portion is a pitch P / 2 between the contact 32a of the signal line portion 32 and the contact 36 adjacent thereto (the contact of the signal line portion 42 on the back surface), but the outer diameter of the coaxial cable 11 is made larger than that. Can be thick.
  • guard ground portions 35 and 45 are disposed, electrical interference such as crosstalk between the adjacent signal line portions 32 and 42 can be suppressed. Further, the guard ground portions 35 and 45 connected to the outer conductor 14 of the coaxial cable 11 via the ground portions 34 and 44 have a function as a wiring for a return path connected to the outer conductor 14 of the coaxial cable 11. Can be made.
  • the arrangement of the signal line portions 32 and 42 of the respective connection surfaces 31 and 41 is shifted by a half pitch of the pitch P on the front and back sides, and is opposite to the back side of the signal line portions 32 and 42 of the respective connection surfaces 31 and 41. Since the guard ground portions 45 and 35 of the surface-side connection surfaces 41 and 31 are arranged, electrical interference such as crosstalk between the front and back signal line portions 32 and 42 can be suppressed. Further, the arrangement pitch of the coaxial cables 11 on the connection surfaces 31 and 41 can be increased to about twice that of the contacts 32a and 36 without changing the pitch of the contacts 32a and 36. As a result, the coaxial cable 11 having a large diameter central conductor 12 can be used. That is, a thick conductor can be used as the central conductor 12 of the coaxial cable 11 while achieving high-density mounting, and electrical characteristics such as transmission characteristics and noise characteristics can be greatly improved.
  • a plurality of contacts 32a and 36 that can be electrically connected to the connector terminals are arranged on one connection surface 31, and part of the signal line portion 32 of one connection surface 31 is a contact 32a, and the other connection is made. Since the signal line portion 42 of the surface 41 is electrically connected to the contact 36 through the through hole 37, the signal line portion 42 can be wired from one connection surface 31 side of the relay substrate 21, and the connection structure with the connector can be simplified. Can be planned. In addition, since the distances of the energization paths between the connection positions A and B of the central conductor 12 to the signal line portions 32 and 42 and the contacts 32a and 36 are the same distances on the connection surfaces 31 and 41, respectively. Generation of signal delay time between the coaxial cables 11 connected to the connection surfaces 31 and 41 can be prevented. Thus, according to the coaxial cable harness 10, high-density mounting can be realized while ensuring good electrical characteristics.
  • ground bars 38, 48 In order to align and fix the coaxial cables 11, it is preferable to provide the ground bars 38, 48. However, if the coaxial cable 11 can be satisfactorily fixed without the ground bars 38, 48, the ground bars 38, 48 are provided. It is not necessary.

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  • Insulated Conductors (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Communication Cables (AREA)
  • Multi-Conductor Connections (AREA)

Abstract

Provided is a coaxial-cable harness that uses wires with a diameter thicker than the pitch between each of the wires at the connector section, and wherein satisfactory electrical characteristics are secured. The coaxial-cable harness (10): is provided with a relaying substrate (21) that has multiple coaxial cables (11) connected thereto; has multiple coaxial cables (11) connected to the front and back faces of the relaying substrate (21); has contact faces (31, 41) of the coaxial-cable harness (10) provided with multiple signal line sections (32, 42) that have central conductors (12) connected thereto, ground sections (34, 44) that have external conductors (14) connected thereto, and guard-ground sections (35, 45) that extend from the ground sections (34, 44) towards the spaces in between the signal line sections (32, 42); has the arranged positions of the signal line sections (32, 42) shifted half a pitch between the front and the back sides of the relaying substrate (21); has the signal line sections (32) arranged with a prescribed pitch at one end section of the relaying substrate (21), on the front side of the relaying substrate (21); has multiple contact points (36) that can be made to be conductive to connector terminals, arranged in between the signal line sections (32); and has the signal line sections (42) at the back side of the relaying substrate (21) made to be conductive to the contact points (36) via through holes (37).

Description

同軸ケーブルハーネスCoaxial cable harness
　本発明は、中継基板に複数の同軸ケーブルが接続された同軸ケーブルハーネスに関する。 The present invention relates to a coaxial cable harness in which a plurality of coaxial cables are connected to a relay board.
　近年、電子機器の小型化や軽量化の他に、高速化や高画質化が求められている。そのため、機器本体と表示部との接続や機器内の配線などに、極めて細い同軸ケーブルが用いられている。また、配線の容易性から、複数本の同軸ケーブルを集合一体化させた同軸ケーブルハーネスが用いられている。
　このような同軸ケーブルハーネスの端末部分は、コネクタ端子や基板等へ半田付け、導電性接着材を使用した接着、溶接等で接続固定される。 In recent years, in addition to downsizing and weight reduction of electronic devices, higher speed and higher image quality are required. Therefore, an extremely thin coaxial cable is used for connection between the device body and the display unit, wiring in the device, and the like. Also, a coaxial cable harness in which a plurality of coaxial cables are integrated together is used for ease of wiring.
The terminal portion of such a coaxial cable harness is connected and fixed by soldering to a connector terminal or a substrate, bonding using a conductive adhesive, welding, or the like.
　そして、基板への接続固定の形態として、芯線やシールド部に接続される回路パターンを表裏の対向面で交互にずらして配列したコネクタ基板に、単位ケーブルを、その端から例えばコネクタ基板の表側、裏側、表側、裏側の順序で交互に配列接続することが知られている（例えば、特許文献１参照）。 And, as a form of connection fixation to the board, to the connector board arranged by alternately shifting the circuit pattern connected to the core wire and the shield part on the front and back facing surfaces, the unit cable from the end, for example, the front side of the connector board, It is known to alternately connect in the order of the back side, the front side, and the back side (see, for example, Patent Document 1).
日本国特許公開：特開２００５－２５９７１号公報Japanese patent publication: JP 2005-25971
　上記の技術によれば、コネクタ部分での各線のピッチを各線の径よりも小さくする高密度実装が可能であるが、各同軸ケーブルの信号線同士の間隔が狭くなると隣接する信号線間のクロストーク等の電気的な干渉が生じ易くなってしまう。 According to the above technique, high-density mounting is possible in which the pitch of each wire at the connector portion is smaller than the diameter of each wire, but if the spacing between the signal wires of each coaxial cable becomes narrow, the cross between adjacent signal wires Electrical interference such as talk is likely to occur.
　そこで本発明の目的は、コネクタ部分の各線のピッチよりも径の太い電線を使用しかつ良好な電気的特性が確保された同軸ケーブルハーネスを提供することにある。 Therefore, an object of the present invention is to provide a coaxial cable harness that uses an electric wire having a diameter larger than the pitch of each wire of the connector portion and ensures good electrical characteristics.
　上記課題を解決することのできる本発明に係る同軸ケーブルハーネスは、中心導体、前記中心導体の外周に配設された内部絶縁体、前記内部絶縁体の外周に配設された外部導体及び前記外部導体の外周に配設された外被を有する複数の同軸ケーブルと、前記同軸ケーブルの少なくとも一端側が接続された中継基板とを備えた同軸ケーブルハーネスであって、
　前記中継基板の表面及び裏面に複数の前記同軸ケーブルが接続されており、
　前記中継基板の表面及び裏面は、所定ピッチに配列されて前記中心導体が接続された複数の信号線部と、前記外部導体が接続されたグランド部と、前記グランド部から前記信号線部の間に延びたガードグランド部とを有し、
　前記信号線部の配列位置が前記中継基板の表裏で半ピッチ分ずらされ、それぞれの接続面における前記信号線部の反対面側に前記ガードグランド部が配置され、
　前記中継基板の表面で前記信号線部が前記中継基板の一端部で前記所定ピッチで配列され、前記信号線部同士の間に、コネクタの端子と導通可能な複数の接点が配列され、前記中継基板の裏面における前記信号線部は、スルーホールを介して前記接点と導通されていることを特徴とする。 The coaxial cable harness according to the present invention that can solve the above-mentioned problems is a center conductor, an inner insulator disposed on the outer periphery of the center conductor, an outer conductor disposed on the outer periphery of the inner insulator, and the outer A coaxial cable harness comprising a plurality of coaxial cables having a jacket disposed on the outer periphery of a conductor, and a relay board to which at least one end of the coaxial cable is connected,
A plurality of the coaxial cables are connected to the front and back surfaces of the relay substrate,
The front and back surfaces of the relay substrate are arranged at a predetermined pitch and a plurality of signal line portions to which the central conductor is connected, a ground portion to which the outer conductor is connected, and between the ground portion and the signal line portion. And a guard ground portion extending to
The arrangement position of the signal line part is shifted by a half pitch between the front and back of the relay board, the guard ground part is disposed on the opposite side of the signal line part in each connection surface,
The signal line portions are arranged at one end of the relay substrate at the predetermined pitch on the surface of the relay substrate, and a plurality of contacts that can be electrically connected to connector terminals are arranged between the signal line portions, and the relay The signal line portion on the back surface of the substrate is electrically connected to the contact through a through hole.
　本発明の同軸ケーブルハーネスにおいて、前記中継基板の裏面における前記信号線部では、前記スルーホールの長さ分だけ、前記中心導体の接続位置が前記中継基板の表面における前記中心導体の接続位置より前記スルーホール寄りとされていることが好ましい。 In the coaxial cable harness of the present invention, in the signal line portion on the back surface of the relay board, the connection position of the center conductor is greater than the connection position of the center conductor on the surface of the relay board by the length of the through hole. It is preferable to be close to the through hole.
　本発明によれば、中継基板の表面及び裏面に、それぞれ複数の同軸ケーブルを接続できる。中継基板の表裏で、信号線部間にガードグランド部が配置されているため、隣接する信号線部同士の間でのクロストーク等の電気的な干渉を抑えることができる。また、ガードグランド部の分だけ同軸ケーブルの中心導体を太くすることができる。すなわち、コネクタ部分の各線のピッチよりも径の太い電線を使用しかつ良好な電気的特性が確保された同軸ケーブルハーネスとすることができる。 According to the present invention, a plurality of coaxial cables can be connected to the front and back surfaces of the relay board. Since the guard ground portion is disposed between the signal line portions on the front and back sides of the relay substrate, electrical interference such as crosstalk between adjacent signal line portions can be suppressed. Further, the central conductor of the coaxial cable can be made thicker by the guard ground portion. That is, a coaxial cable harness that uses electric wires with a diameter larger than the pitch of each line of the connector portion and that ensures good electrical characteristics can be obtained.
本発明に係る同軸ケーブルハーネスに用いられる同軸ケーブルの断面図である。It is sectional drawing of the coaxial cable used for the coaxial cable harness which concerns on this invention. 本発明に係る同軸ケーブルハーネスの一端側を示す斜視図であり、（ａ）は中継基板の表面側、（ｂ）は中継基板の裏面側である。It is a perspective view which shows the one end side of the coaxial cable harness which concerns on this invention, (a) is the surface side of a relay board | substrate, (b) is the back surface side of a relay board | substrate. 本発明に係る同軸ケーブルハーネスの一端側を示す平面図であり、（ａ）は中継基板の表面側、（ｂ）は中継基板の裏面側である。It is a top view which shows the one end side of the coaxial cable harness which concerns on this invention, (a) is the surface side of a relay substrate, (b) is the back surface side of a relay substrate. 本発明に係る同軸ケーブルハーネスの一端側を示す断面図であり、（ａ）は図３（ａ）のＡ－Ａ断面図、（ｂ）は図３（ａ）のＢ－Ｂ断面図である。3A and 3B are cross-sectional views showing one end side of the coaxial cable harness according to the present invention, wherein FIG. 3A is a cross-sectional view taken along line AA in FIG. 3A, and FIG. 3B is a cross-sectional view taken along line BB in FIG. .
　以下、本発明に係る同軸ケーブルハーネスの実施形態の例について説明する。
　なお、本発明に係る同軸ケーブルハーネスは、両端側がそれぞれ中継基板に接続される場合や、一端側のみ中継基板に接続されて他端側はコネクタ付けされる場合など、様々な形態を採り得るが、一端側が中継基板に接続された構成について説明する。 Hereinafter, examples of embodiments of the coaxial cable harness according to the present invention will be described.
The coaxial cable harness according to the present invention may take various forms, such as when both ends are connected to the relay board, or when only one end is connected to the relay board and the other end is attached with a connector. A configuration in which one end side is connected to the relay board will be described.
　図１に示すように、同軸ケーブルハーネスを構成する同軸ケーブル１１は、中心導体１２、中心導体１２の外周に配設された内部絶縁体１３、内部絶縁体１３の外周に配設された外部導体１４及び外部導体１４の外周に配設された絶縁性の外被１５を有しており、これらを同軸状に配設して構成されている。 As shown in FIG. 1, the coaxial cable 11 constituting the coaxial cable harness includes a center conductor 12, an inner insulator 13 disposed on the outer periphery of the center conductor 12, and an outer conductor disposed on the outer periphery of the inner insulator 13. 14 and an outer sheath 14 disposed on the outer periphery of the outer conductor 14, and these are arranged coaxially.
　同軸ケーブル１１は、例えば、ＡＷＧ（American Wire Gauge）の規格によるＡＷＧ３２よりも細いケーブルが用いられている。例えば、ＡＷＧ３２よりも細いＡＷＧ４２の同軸ケーブル１１では、中心導体１２が、外径０．０２５ｍｍの錫メッキ銅合金または銀メッキ銅合金の素線１２ａを７本撚って形成されている。また、内部絶縁体１３は、中心導体１２の外周面を被覆する例えばＰＦＡ等のフッ素樹脂からなり外径０．１７ｍｍに形成されている。さらに、外部導体１４は、外径０．０３ｍｍの例えば錫メッキ銅合金の素線１４ａを内部絶縁体１３の外周面に横巻きまたは編組で巻き付けることで外径０．２３ｍｍに形成されている。加えて、外被１５は外部導体１４の外周面を被覆する例えばＰＦＡ等のフッ素樹脂からなり、ＡＷＧ４０の場合は外径０．３１ｍｍに、ＡＷＧ３２の場合は外径約１．０ｍｍに形成されている。 As the coaxial cable 11, for example, a cable thinner than the AWG 32 according to the standard of AWG (American Wire Gauge) is used. For example, in the coaxial cable 11 of the AWG 42 thinner than the AWG 32, the central conductor 12 is formed by twisting seven strands 12a of a tin-plated copper alloy or a silver-plated copper alloy having an outer diameter of 0.025 mm. The internal insulator 13 is made of a fluororesin such as PFA, which covers the outer peripheral surface of the center conductor 12, and has an outer diameter of 0.17 mm. Further, the outer conductor 14 is formed to have an outer diameter of 0.23 mm by winding, for example, a tin-plated copper alloy wire 14 a having an outer diameter of 0.03 mm around the outer peripheral surface of the inner insulator 13 by lateral winding or braiding. In addition, the outer jacket 15 is made of a fluororesin such as PFA for covering the outer peripheral surface of the outer conductor 14, and is formed to have an outer diameter of 0.31 mm in the case of AWG40 and about 1.0 mm in the case of AWG32. Yes.
　図２及び図３に示すように、同軸ケーブルハーネス１０を構成する同軸ケーブル１１の端部は、口出し処理されており、先端側から順に、中心導体１２、内部絶縁体１３及び外部導体１４がそれぞれ段階的に所定長さ露出している。 As shown in FIGS. 2 and 3, the end portion of the coaxial cable 11 constituting the coaxial cable harness 10 is subjected to lead processing, and the center conductor 12, the inner insulator 13, and the outer conductor 14 are arranged in order from the tip side. A predetermined length is exposed stepwise.
　そして、このように口出し処理された複数の同軸ケーブル１１が、中継基板２１に接続されている。同軸ケーブル１１は、その端部では、中継基板２１へ接続し易いように平面状に配列された集合体とされているが、端部以外は束ねられていても良い。 Then, the plurality of coaxial cables 11 thus subjected to the lead processing are connected to the relay board 21. The coaxial cable 11 is an aggregate arranged in a planar shape so that the coaxial cable 11 can be easily connected to the relay substrate 21 at the end, but may be bundled except at the end.
　中継基板２１は、その表面と裏面がそれぞれ接続面３１，４１として形成されており、これらの接続面３１，４１に、それぞれ複数の同軸ケーブル１１が接続されている。この中継基板２１は、例えば、金属箔等の配線パターンを有するフレキシブル基板や硬質基板により構成されている。 The front surface and the back surface of the relay substrate 21 are formed as connection surfaces 31 and 41, respectively, and a plurality of coaxial cables 11 are connected to the connection surfaces 31 and 41, respectively. The relay substrate 21 is configured by, for example, a flexible substrate or a hard substrate having a wiring pattern such as a metal foil.
　図２（ａ）及び図３（ａ）に示すように、表面側の接続面３１には、所定の並列ピッチＰで複数の帯状の配線パターンを構成する信号線部３２が形成されている。信号線部３２はそれぞれ、中継基板２１の先端部（接続方向の前端）まで延びて形成され、その先端部が接点３２ａとされている。なお、この信号線部３２の配列ピッチＰは、例えば、０．３ｍｍ以上１．０ｍｍ以下が好ましい。 As shown in FIGS. 2 (a) and 3 (a), a signal line portion 32 that forms a plurality of strip-like wiring patterns at a predetermined parallel pitch P is formed on the connection surface 31 on the front surface side. Each of the signal line portions 32 is formed to extend to the front end portion (front end in the connection direction) of the relay substrate 21, and the front end portion serves as a contact 32a. The arrangement pitch P of the signal line portions 32 is preferably 0.3 mm or greater and 1.0 mm or less, for example.
　また、接続面３１には、グランドパターン３３が形成されている。グランドパターン３３は、信号線部３２よりも後端側で幅方向に延在するグランド部３４と、このグランド部３４から中継基板２１の先端へ向かって信号線部３２間へ延びる複数の帯状のガードグランド部３５とを有している。ガードグランド部３５も中継基板２１の幅方向へ所定ピッチＰで配置されている。信号線部３２とガードグランド部３５とは、互いに僅かな隙間をあけて幅方向に交互に配置されている。 Further, a ground pattern 33 is formed on the connection surface 31. The ground pattern 33 includes a ground portion 34 extending in the width direction on the rear end side from the signal line portion 32, and a plurality of belt-like shapes extending from the ground portion 34 toward the tip of the relay substrate 21 between the signal line portions 32. And a guard ground portion 35. The guard ground portions 35 are also arranged at a predetermined pitch P in the width direction of the relay substrate 21. The signal line portions 32 and the guard ground portions 35 are alternately arranged in the width direction with a slight gap therebetween.
　また、接続面３１には、それぞれのガードグランド部３５の先端側に、ガードグランド部３５と隙間をあけて接点３６が設けられている。接点３６は、スルーホール３７によって裏面側の接続面４１に形成された信号線部４２と導通されている。これらの接点３６も、中継基板２１の幅方向に所定ピッチＰで配置されている。 Further, the connection surface 31 is provided with a contact 36 on the tip side of each guard ground portion 35 with a gap from the guard ground portion 35. The contact 36 is electrically connected to the signal line portion 42 formed on the connection surface 41 on the back surface side through the through hole 37. These contact points 36 are also arranged at a predetermined pitch P in the width direction of the relay substrate 21.
　接続面３１に接続される同軸ケーブル１１は、中継基板２１の幅方向に所定ピッチＰで配置され、その外部導体１４が、グランド部３４に接続するように配置されている。各同軸ケーブル１１の中心導体１２が、各信号線部３２の後端側に半田付けされて接続されている。なお、信号線部３２と中心導体１２との接続は、半田ではなく導電性接着剤等により固定しても良い。 The coaxial cable 11 connected to the connection surface 31 is arranged at a predetermined pitch P in the width direction of the relay substrate 21, and the outer conductor 14 is arranged to connect to the ground portion 34. The center conductor 12 of each coaxial cable 11 is soldered and connected to the rear end side of each signal line portion 32. The connection between the signal line portion 32 and the central conductor 12 may be fixed by a conductive adhesive or the like instead of solder.
　また、接続面３１には、同軸ケーブル１１の外部導体１４を介してグランドバー３８が取り付けられている。同軸ケーブル１１の外部導体１４は、グランドバー３８と中継基板２１とによって挟持される。 Also, a ground bar 38 is attached to the connection surface 31 via the outer conductor 14 of the coaxial cable 11. The outer conductor 14 of the coaxial cable 11 is sandwiched between the ground bar 38 and the relay substrate 21.
　図２（ｂ）及び図３（ｂ）に示すように、裏面側の接続面４１には、所定ピッチＰで複数の帯状の配線パターンを構成する信号線部４２が形成されている。信号線部４２はそれぞれ、中継基板２１の先端部（接続方向の前端）近傍まで延びて形成され、その先端部がスルーホール３７によって接続面３１の接点３６に導通されている。 As shown in FIGS. 2B and 3B, the connection surface 41 on the back side is formed with signal line portions 42 that form a plurality of strip-like wiring patterns at a predetermined pitch P. Each of the signal line portions 42 is formed to extend to the vicinity of the front end portion (front end in the connection direction) of the relay substrate 21, and the front end portion is electrically connected to the contact 36 on the connection surface 31 by the through hole 37.
　また、接続面４１には、グランドパターン４３が形成されている。グランドパターン４３は、信号線部４２よりも後端側で幅方向に延在するグランド部４４と、このグランド部４４から信号線部４２間へ中継基板２１の先端部まで延在する複数の帯状のガードグランド部４５とを有している。ガードグランド部４５も中継基板２１の幅方向へ所定ピッチＰで配置されている。信号線部４２とガードグランド部４５とは、互いに僅かな隙間をあけて幅方向に交互に配置されている。 Further, a ground pattern 43 is formed on the connection surface 41. The ground pattern 43 includes a ground portion 44 extending in the width direction on the rear end side from the signal line portion 42 and a plurality of strips extending from the ground portion 44 to the front end portion of the relay substrate 21 between the signal line portions 42. Guard ground portion 45. The guard ground portions 45 are also arranged at a predetermined pitch P in the width direction of the relay substrate 21. The signal line portions 42 and the guard ground portions 45 are alternately arranged in the width direction with a slight gap therebetween.
　接続面４１に接続される同軸ケーブル１１は、中継基板２１の幅方向に所定ピッチＰで配置され、その外部導体１４が、グランド部４４に接続するように配置されている。各同軸ケーブル１１の中心導体１２が、各信号線部４２の後端側に半田付けされて接続されている。なお、信号線部４２と中心導体１２との接続は、半田ではなく導電性接着剤等により固定しても良い。 The coaxial cable 11 connected to the connection surface 41 is arranged at a predetermined pitch P in the width direction of the relay substrate 21, and the outer conductor 14 is arranged to connect to the ground portion 44. The central conductor 12 of each coaxial cable 11 is soldered and connected to the rear end side of each signal line portion 42. The connection between the signal line portion 42 and the central conductor 12 may be fixed by a conductive adhesive or the like instead of solder.
　また、接続面４１には、同軸ケーブル１１の外部導体１４を介してグランドバー４８が取り付けられている。同軸ケーブル１１の外部導体１４は、グランドバー４８と中継基板２１とによって挟持される。 Further, a ground bar 48 is attached to the connection surface 41 via the outer conductor 14 of the coaxial cable 11. The outer conductor 14 of the coaxial cable 11 is sandwiched between the ground bar 48 and the relay substrate 21.
　接続面３１の信号線部３２の裏面側に接続面４１のガードグランド部４５が配置される。また、接続面４１の信号線部４２の裏面側に接続面３１のガードグランド部３５が配置される。また、上記構成の中継基板２１では、接続面３１に接続される同軸ケーブル１１と、接続面４１に接続される同軸ケーブル１１とは、中継基板２１の幅方向に半ピッチ（Ｐ／２）ずつずらされて、交互に配置される。 The guard ground portion 45 of the connection surface 41 is disposed on the back surface side of the signal line portion 32 of the connection surface 31. Further, the guard ground portion 35 of the connection surface 31 is disposed on the back surface side of the signal line portion 42 of the connection surface 41. Further, in the relay board 21 configured as described above, the coaxial cable 11 connected to the connection surface 31 and the coaxial cable 11 connected to the connection surface 41 are each half pitch (P / 2) in the width direction of the relay board 21. They are shifted and arranged alternately.
　図４（ａ），（ｂ）に示すように、接続面４１に接続される同軸ケーブル１１は、接続面３１に接続される同軸ケーブル１１よりも中継基板２１の先端側へ配置されている。これにより、接続面３１の信号線部３２への中心導体１２の接続位置Ａに対して、接続面４１の信号線部４２への中心導体の接続位置Ｂが、中継基板２１の板厚Ｔに相当する寸法Ｘだけ中継基板２１の前方側とされている。したがって、接続位置Ａから接点３２ａまでの通電経路の距離と、接続位置Ｂから接点３６までの通電経路の距離とが同一距離とされている。 As shown in FIGS. 4A and 4B, the coaxial cable 11 connected to the connection surface 41 is disposed closer to the distal end side of the relay substrate 21 than the coaxial cable 11 connected to the connection surface 31. Accordingly, the connection position B of the central conductor to the signal line portion 42 of the connection surface 41 is set to the plate thickness T of the relay substrate 21 with respect to the connection position A of the central conductor 12 to the signal line portion 32 of the connection surface 31. The corresponding dimension X is the front side of the relay board 21. Therefore, the distance of the energization path from the connection position A to the contact 32a and the distance of the energization path from the connection position B to the contact 36 are the same distance.
　そして、上記の中継基板２１は、電子機器等の回路基板に設けられたコネクタのレセプタクルに、その先端側から挿入することにより接続される。これにより、中継基板２１の接点３２ａ，３６が、レセプタクル側の端子に導通接触され、レセプタクルが設けられた回路基板側の配線と導通される。 Then, the relay board 21 is connected to the receptacle of the connector provided on the circuit board of an electronic device or the like by inserting it from the front end side. As a result, the contacts 32a and 36 of the relay substrate 21 are brought into conductive contact with the terminals on the receptacle side, and are conducted with the wiring on the circuit board side on which the receptacle is provided.
　なお、この中継基板２１の先端部にコネクタを取り付け、電子機器等の回路基板側に設けられたコネクタと接続する構成としても良い。また、回路基板への接続方向は、回路基板の面と直交する方向または回路基板の面に沿う方向の何れであっても良い。 In addition, it is good also as a structure which attaches a connector to the front-end | tip part of this relay substrate 21, and connects with the connector provided in the circuit board side, such as an electronic device. Further, the connection direction to the circuit board may be either a direction orthogonal to the surface of the circuit board or a direction along the surface of the circuit board.
　また、同軸ケーブルハーネス１０は、中継基板２１における同軸ケーブル１１の接続位置の配列が同軸ケーブル１１の長手方向に沿うＬ型構造であっても、中継基板２１における同軸ケーブル１１の接続位置の配列が同軸ケーブル１１の長手方向に直交するＴ型構造であっても良い。 Further, the coaxial cable harness 10 has an L-shaped structure in which the connection positions of the coaxial cables 11 on the relay board 21 are along the longitudinal direction of the coaxial cable 11, but the connection positions of the coaxial cables 11 on the relay board 21 are A T-shaped structure orthogonal to the longitudinal direction of the coaxial cable 11 may be used.
　本実施形態の同軸ケーブルハーネス１０によれば、中継基板２１の表面及び裏面が、複数の同軸ケーブル１１が接続可能な接続面３１，４１として形成されている。コネクタ部分の各線のピッチは信号線部３２の接点３２ａとそれに隣接する接点３６（裏面の信号線部４２の接点）とのピッチＰ／２となるが、同軸ケーブル１１の外径をそれよりも太くすることができる。また、中継基板２１の表裏の接続面３１，４１に配列されて中心導体１２が接続される複数の信号線部３２，４２の間に、外部導体１４が接続されるグランド部３４，４４から延びるガードグランド部３５，４５が配置されているので、互いに隣接する信号線部３２，４２同士の間でのクロストーク等の電気的な干渉を抑えることができる。
　また、グランド部３４，４４を介して同軸ケーブル１１の外部導体１４と接続されたガードグランド部３５，４５に、同軸ケーブル１１の外部導体１４と接続された帰還経路用の配線としての機能を併用させることができる。 According to the coaxial cable harness 10 of the present embodiment, the front and back surfaces of the relay substrate 21 are formed as connection surfaces 31 and 41 to which a plurality of coaxial cables 11 can be connected. The pitch of each line of the connector portion is a pitch P / 2 between the contact 32a of the signal line portion 32 and the contact 36 adjacent thereto (the contact of the signal line portion 42 on the back surface), but the outer diameter of the coaxial cable 11 is made larger than that. Can be thick. Further, between the plurality of signal line portions 32, 42 arranged on the connection surfaces 31, 41 on the front and back surfaces of the relay substrate 21 and connected to the central conductor 12, extend from the ground portions 34, 44 to which the external conductor 14 is connected. Since the guard ground portions 35 and 45 are disposed, electrical interference such as crosstalk between the adjacent signal line portions 32 and 42 can be suppressed.
Further, the guard ground portions 35 and 45 connected to the outer conductor 14 of the coaxial cable 11 via the ground portions 34 and 44 have a function as a wiring for a return path connected to the outer conductor 14 of the coaxial cable 11. Can be made.
　また、それぞれの接続面３１，４１の信号線部３２，４２の配置が、表裏でピッチＰの半ピッチ分ずらされ、それぞれの接続面３１，４１の信号線部３２，４２の裏面側に反対面側の接続面４１，３１のガードグランド部４５，３５が配置されているので、表裏の信号線部３２，４２同士の間でのクロストーク等の電気的な干渉も抑えることができる。また、接点３２ａ、３６のピッチを変更することなく、接続面３１，４１における同軸ケーブル１１の配列ピッチを接点３２ａ，３６の約２倍に拡大することができる。これにより、同軸ケーブル１１として中心導体１２が大径のものを用いることができる。すなわち、高密度実装化を図りつつ同軸ケーブル１１の中心導体１２として太いものを用いることができ、伝送特性やノイズ特性などの電気的特性を大幅に改善することができる。 Further, the arrangement of the signal line portions 32 and 42 of the respective connection surfaces 31 and 41 is shifted by a half pitch of the pitch P on the front and back sides, and is opposite to the back side of the signal line portions 32 and 42 of the respective connection surfaces 31 and 41. Since the guard ground portions 45 and 35 of the surface-side connection surfaces 41 and 31 are arranged, electrical interference such as crosstalk between the front and back signal line portions 32 and 42 can be suppressed. Further, the arrangement pitch of the coaxial cables 11 on the connection surfaces 31 and 41 can be increased to about twice that of the contacts 32a and 36 without changing the pitch of the contacts 32a and 36. As a result, the coaxial cable 11 having a large diameter central conductor 12 can be used. That is, a thick conductor can be used as the central conductor 12 of the coaxial cable 11 while achieving high-density mounting, and electrical characteristics such as transmission characteristics and noise characteristics can be greatly improved.
　また、一方の接続面３１に、コネクタの端子と導通可能な複数の接点３２ａ，３６が配列され、一方の接続面３１の信号線部３２は、その一部が接点３２ａとされ、他方の接続面４１の信号線部４２は、スルーホール３７を介して接点３６と導通されているので、中継基板２１の一方の接続面３１側から配線することができ、コネクタとの接続構造の簡略化を図ることができる。また、信号線部３２，４２への中心導体１２の接続位置Ａ，Ｂと接点３２ａ，３６との通電経路の距離が、それぞれの接続面３１，４１において同一距離とされているので、表裏の接続面３１，４１に接続された同軸ケーブル１１同士の間における信号の遅延時間の発生を防止することができる。
　このように、同軸ケーブルハーネス１０によれば、良好な電気的特性を確保しつつ高密度実装を実現することができる。 Also, a plurality of contacts 32a and 36 that can be electrically connected to the connector terminals are arranged on one connection surface 31, and part of the signal line portion 32 of one connection surface 31 is a contact 32a, and the other connection is made. Since the signal line portion 42 of the surface 41 is electrically connected to the contact 36 through the through hole 37, the signal line portion 42 can be wired from one connection surface 31 side of the relay substrate 21, and the connection structure with the connector can be simplified. Can be planned. In addition, since the distances of the energization paths between the connection positions A and B of the central conductor 12 to the signal line portions 32 and 42 and the contacts 32a and 36 are the same distances on the connection surfaces 31 and 41, respectively. Generation of signal delay time between the coaxial cables 11 connected to the connection surfaces 31 and 41 can be prevented.
Thus, according to the coaxial cable harness 10, high-density mounting can be realized while ensuring good electrical characteristics.
　なお、各同軸ケーブル１１を整列させて固定するためにもグランドバー３８，４８を設けるのが好ましいが、グランドバー３８，４８無しで同軸ケーブル１１が良好に固定できれば、グランドバー３８，４８は設けなくても良い。 In order to align and fix the coaxial cables 11, it is preferable to provide the ground bars 38, 48. However, if the coaxial cable 11 can be satisfactorily fixed without the ground bars 38, 48, the ground bars 38, 48 are provided. It is not necessary.
　本発明を詳細にまた特定の実施態様を参照して説明したが、本発明の精神と範囲を逸脱することなく様々な変更や修正を加えることができることは当業者にとって明らかである。本出願は２００９年７月２１日出願の日本特許出願（特願２００９－１６９９３１）に基づくものであり、その内容はここに参照として取り込まれる。 Although the present invention has been described in detail and with reference to specific embodiments, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention. This application is based on a Japanese patent application filed on July 21, 2009 (Japanese Patent Application No. 2009-169931), the contents of which are incorporated herein by reference.
１０：同軸ケーブルハーネス、１１：同軸ケーブル、１２：中心導体、１３：内部絶縁体、１４：外部導体、１５：外被、２１：中継基板、３１，４１：接続面、３２，４２：信号線部、３２ａ，３６：接点、３４，４４：グランド部、３５，４５：ガードグランド部、３７：スルーホール、Ａ，Ｂ：接続位置、Ｐ：ピッチ 10: Coaxial cable harness, 11: Coaxial cable, 12: Center conductor, 13: Inner insulator, 14: Outer conductor, 15: Outer jacket, 21: Relay board, 31, 41: Connection surface, 32, 42: Signal line Part, 32a, 36: contact point, 34, 44: ground part, 35, 45: guard ground part, 37: through hole, A, B: connection position, P: pitch

Claims (2)

  1. 　中心導体、前記中心導体の外周に配設された内部絶縁体、前記内部絶縁体の外周に配設された外部導体及び前記外部導体の外周に配設された外被を有する複数の同軸ケーブルと、前記同軸ケーブルの少なくとも一端側が接続された中継基板とを備えた同軸ケーブルハーネスであって、
    　前記中継基板の表面及び裏面に複数の前記同軸ケーブルが接続されており、
    　前記中継基板の表面及び裏面は、所定ピッチに配列されて前記中心導体が接続された複数の信号線部と、前記外部導体が接続されたグランド部と、前記グランド部から前記信号線部の間に延びたガードグランド部とを有し、
    　前記信号線部の配列位置が前記中継基板の表裏で半ピッチ分ずらされ、それぞれの接続面における前記信号線部の反対面側に前記ガードグランド部が配置され、
    　前記中継基板の表面で前記信号線部が前記中継基板の一端部で前記所定ピッチで配列され、前記信号線部同士の間に、コネクタの端子と導通可能な複数の接点が配列され、前記中継基板の裏面における前記信号線部は、スルーホールを介して前記接点と導通されていることを特徴とする同軸ケーブルハーネス。     A plurality of coaxial cables having a center conductor, an inner insulator disposed on the outer periphery of the center conductor, an outer conductor disposed on the outer periphery of the inner insulator, and a jacket disposed on the outer periphery of the outer conductor; A coaxial cable harness comprising a relay substrate to which at least one end of the coaxial cable is connected,
    A plurality of the coaxial cables are connected to the front and back surfaces of the relay substrate,
    The front and back surfaces of the relay substrate are arranged at a predetermined pitch and a plurality of signal line portions to which the central conductor is connected, a ground portion to which the outer conductor is connected, and between the ground portion and the signal line portion. And a guard ground portion extending to
    The arrangement position of the signal line part is shifted by a half pitch between the front and back of the relay board, the guard ground part is disposed on the opposite side of the signal line part in each connection surface,
    The signal line portions are arranged at one end of the relay substrate at the predetermined pitch on the surface of the relay substrate, and a plurality of contacts that can be electrically connected to connector terminals are arranged between the signal line portions, and the relay The coaxial cable harness, wherein the signal line portion on the back surface of the substrate is electrically connected to the contact through a through hole.
  2. 　請求項１に記載の同軸ケーブルハーネスであって、
    　前記中継基板の裏面における前記信号線部では、前記スルーホールの長さ分だけ、前記中心導体の接続位置が前記中継基板の表面における前記中心導体の接続位置より前記スルーホール寄りとされていることを特徴とする同軸ケーブルハーネス。     The coaxial cable harness according to claim 1,
    In the signal line portion on the back surface of the relay board, the connection position of the center conductor is closer to the through hole than the connection position of the center conductor on the surface of the relay board by the length of the through hole. Coaxial cable harness characterized by
PCT/JP2010/062112 2009-07-21 2010-07-16 Coaxial-cable harness WO2011010621A1 (en)

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JP2016110715A (en) * 2014-12-02 2016-06-20 住友電気工業株式会社 Cable terminal structure
EP3176877A1 (en) * 2015-12-02 2017-06-07 Alcatel- Lucent Shanghai Bell Co., Ltd A radiofrequency cable connector

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