EP0283012B1 - Cable arrangement for use in a multiplex transmission system - Google Patents

Cable arrangement for use in a multiplex transmission system Download PDF

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Publication number
EP0283012B1
EP0283012B1 EP88104258A EP88104258A EP0283012B1 EP 0283012 B1 EP0283012 B1 EP 0283012B1 EP 88104258 A EP88104258 A EP 88104258A EP 88104258 A EP88104258 A EP 88104258A EP 0283012 B1 EP0283012 B1 EP 0283012B1
Authority
EP
European Patent Office
Prior art keywords
conductors
power
multiplex transmission
signal
cable arrangement
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP88104258A
Other languages
German (de)
French (fr)
Other versions
EP0283012A3 (en
EP0283012A2 (en
Inventor
Yoshinobu C/O Osaka Works Kobayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Publication of EP0283012A2 publication Critical patent/EP0283012A2/en
Publication of EP0283012A3 publication Critical patent/EP0283012A3/en
Application granted granted Critical
Publication of EP0283012B1 publication Critical patent/EP0283012B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/003—Power cables including electrical control or communication wires
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2404—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation

Definitions

  • the present invention relates to a cable arrangement in which a pair of power conductors for transmitting power and a pair of signal conductors for transmitting various signals are integrally formed in one cable structure. Such an arrangement is known from EP-A-0 066 910.
  • Fig. 1 of the accompanying drawings shows an example of a multiplex transmission system.
  • 101 and 102 denote power transmission lines for supplying power to terminals 105 and 106.
  • 103 and 104 denote data transmission lines for transmitting data information to the terminals 105 and 106.
  • the respective terminals 105 and 106 are provided with actuators 107 and 108 such as an electric motor or display lamp which are activated by the data information in addition to various switches 109 and 110 for inputting the data information.
  • the power lines 101 and 102 and data transmission lines 103 and 104 are connected to the respective terminals 105 and 106 by means of one or more separate conventional connecting wires or twisted pair wires through external connectors 121 and 122 as shown in Fig. 2.
  • the connecting lines generally shown by an arrow mark A show the lines to be connected with a front stage terminal and the lines generally shown by an arrow mark B show the lines to be connected to a back stage terminal.
  • An object of the present invention is to provide a multiplex transmission cable arrangement which is capable of eliminating the problems as mentioned above.
  • Another object of the present invention is to provide a multiplex transmission cable arrangement which is easy to connect to one or more multiplex transmission terminals.
  • a further object of the present invention is to provide a multiple transmission cable arrangement which can prevent noise from power lines.
  • a cable arrangement comprising: a pair of opposed power conductors which are electrically isolated but closely adjacent each other; a pair of signal conductors disposed at one side of said power conductors and extending parallel to the power conductors; and insulation layers for insulating said power conductors from said signal conductors, characterised in that the centers of the respective signal conductors are positioned substantially in a plane passing centrally between said pair of power conductors, at least approximately perpendicular to a plane containing the centers of the respective power conductors.
  • the cable unit 10 comprises a pair of elongate, parallel, opposed power supply conductors 1 and 2.
  • the two conductors 1 and 2 are spaced as close together as possible consistent with ensuring a desired withstand voltage. Disposing both conductors 1 and 2 as close as possible enables increased capacitance between them, thereby providing low impedance power supply lines.
  • a pair of signal conductors 3 and 4 are disposed one side of the power conductors 1 and 2, at positions corresponding to the center between the two power supply conductors 1 and 2 and extending parallel to the power supply conductors 1 and 2.
  • a plane containing the center lines of the signal conductors 3 and 4 is perpendicular to a plane containing the center lines of the power conductors 1 and 2.
  • the respective distances between the signal conductor 3 and both of the power supply conductors 1 and 2 are made equal so as to exclude electrostatic induction from the power supply conductors 1 and 2.
  • the respective distances between the signal conductor 4 and both of the power supply conductors 1 and 2 are also equal.
  • the respective conductors 1 to 4 are covered with insulation material 11 (referred to as insulation layer hereinafter) as shown in Fig. 3. Although the conductors 1 to 4 are covered with insulation layer 11 over the whole length of the conductors, a multiplex transmission terminal can be connected to the respective conductors 1 to 4 anywhere desired on the multiplex cable unit as mentioned below. Grooves 12 and 13 are formed on the surface of the insulation layer 11 corresponding to interface portions between the power conductors 1 or 2 and the signal conductor 3 and between the two signal conductors 3 and 4.
  • a terminal case 30 of a multiplex transmission terminal is composed of a top case half 30a and bottom case half 30b made of resin material. Both of the case halves 30a and 30b are rotatably coupled by one or more hinges 19 so that both of the case halves 30a and 30b can be opened and closed around the hinge 19.
  • a lock mechanism 20 is provided at the right hand portion of the outside of the terminal case 30.
  • a printed circuit board 25 is accommodated in the top case half 30a and possible circuit arrangement including such as integrated circuit chip 23 or other necessary components for use in the multiplex transmission terminal is provided on the printed circuit board 25. Such circuit arrangement including the integrated circuit 23 and other components are respectively connected to the conductor patterns 24 formed on the printed circuit board 25 so as to provide a desired terminal circuit.
  • Three pressing connector pins 15, 17 and 18 are downwardly projected from the printed circuit board 25 toward a recess 26f and one pressing type connector pin 16 is upwardly projected from the bottom case half 30b toward the recess 26f.
  • the connector pin 15 is connected to the printed circuit patterns 24 and the connector pin 15 is also connected to other printed circuit pattern 24 through a flexible wire 27.
  • the connector pins 15 and 16 are so projected that when the top case half 30a and bottom case half 30b are closed, the respective connector ends of the connector pins 15 and 16 are opposed in the recesses 26 and the connector pin 15 is coupled to the power supply conductor 1 and the connector pin 16 is coupled to the power supply conductor 2.
  • the connector pins 17 and 18 are connected to the other printed circuit patterns.
  • the terminal 30 is mounted to the cable unit 10 in such a manner that the power conductor portion 10f is laid in the generally flat shaped recess 26f and signal conductor portions 10r are laid in the round recesses 26r. Then the terminal 30 is closed as shown in Fig. 4 and Fig. 6 with the top case half 30a and bottom case half 30b locked in a closed manner by locking member 20, the ends of the connector pins 15, 16, 17 and 18 penetrate the insulation layer 11 and the connector pins 15 and 16 contact to the power supply conductors 1 and 2 respectively and the connector pins 17 and 18 clamp and contact the signal conductors 3 and 4 by their fork shaped ends as shown in Fig. 6.
  • the respective projections 14 are fitted in the grooves 12 and 13. In other words, the grooves 12 and 13 can serve to position the connector pins 17 and 18 with respect to the conductors 3 and 4.
  • an advantage of the illustrated arrangement is in that the multiplex transmission terminal 30 can be mounted at anywhere desired on the cable unit 10 without any works to the cable such as cable cutting and end treatment.
  • Another advantage of the arrangement is in that since the power conductors are closely opposed, it is possible to decrease the power source impedance independent of length of the cable unit.
  • a still further advantage of the arrangement is in that the cable unit has such structure that cross talk between the power conductors and signal conductors is small, whereby noise on the signal conductors caused by the power conductors can be effectively avoided.

Landscapes

  • Multi-Conductor Connections (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Insulated Conductors (AREA)
  • Communication Cables (AREA)

Description

  • The present invention relates to a cable arrangement in which a pair of power conductors for transmitting power and a pair of signal conductors for transmitting various signals are integrally formed in one cable structure. Such an arrangement is known from EP-A-0 066 910.
  • Other cable arrangements are known from EP-A-0 207 649 and EP-A-0 208 138.
  • Fig. 1 of the accompanying drawings shows an example of a multiplex transmission system. In Fig. 1, 101 and 102 denote power transmission lines for supplying power to terminals 105 and 106. 103 and 104 denote data transmission lines for transmitting data information to the terminals 105 and 106. In the example shown, the respective terminals 105 and 106 are provided with actuators 107 and 108 such as an electric motor or display lamp which are activated by the data information in addition to various switches 109 and 110 for inputting the data information.
  • In the prior art, the power lines 101 and 102 and data transmission lines 103 and 104 are connected to the respective terminals 105 and 106 by means of one or more separate conventional connecting wires or twisted pair wires through external connectors 121 and 122 as shown in Fig. 2. In Fig. 2, the connecting lines generally shown by an arrow mark A show the lines to be connected with a front stage terminal and the lines generally shown by an arrow mark B show the lines to be connected to a back stage terminal.
  • However, in the prior art, since the respective lines are connected to the multiplex transmission terminal through one or more external connectors 121 and 122, in order to connect each line with the multiplex transmission terminal, it is necessary to provide a cable of a suitable length corresponding to the position of the multiplex transmission terminal, having a suitable connector tip attached to the end of conductor of the cable.
  • Moreover, since the respective lines 101 and 102 are independently laid, it is necessary to consider cable lay out so as to prevent noise caused by the power lines from being induced on the signal lines.
  • An object of the present invention is to provide a multiplex transmission cable arrangement which is capable of eliminating the problems as mentioned above.
  • Another object of the present invention is to provide a multiplex transmission cable arrangement which is easy to connect to one or more multiplex transmission terminals.
  • A further object of the present invention is to provide a multiple transmission cable arrangement which can prevent noise from power lines.
  • According to the present invention, there is provided a cable arrangement comprising:
       a pair of opposed power conductors which are electrically isolated but closely adjacent each other;
       a pair of signal conductors disposed at one side of said power conductors and extending parallel to the power conductors; and
       insulation layers for insulating said power conductors from said signal conductors, characterised in that the centers of the respective signal conductors are positioned substantially in a plane passing centrally between said pair of power conductors, at least approximately perpendicular to a plane containing the centers of the respective power conductors.
  • For a better understanding of the invention, and to show how the same may be carried into effect, reference will now be made by way of example to the accompanying drawings, in which:
    • Fig. 1 is a circuit diagram showing an example of multiplex transmission terminal;
    • Fig. 2 is a perspective view of an example of a wire connection in the conventional multiplex transmission terminal;
    • Fig. 3 is a perspective view showing an example of a multiplex transmission cable according to the present invention;
    • Fig. 4 is perspective view showing a specific feature of the use of the multiplex transmission cable according to the present invention;
    • Fig. 5 is a front view of the multiplex transmission terminal shown in Fig. 4 with the case halves opened; and
    • Fig. 6 is a perspective view of the multiplex transmission terminal attached to the multiplex transmission cable according to the present invention.
  • Referring to Fig. 3, there is shown a multiplex transmission cable unit 10 used for the multiplex transmission terminal. The cable unit 10 comprises a pair of elongate, parallel, opposed power supply conductors 1 and 2. The two conductors 1 and 2 are spaced as close together as possible consistent with ensuring a desired withstand voltage. Disposing both conductors 1 and 2 as close as possible enables increased capacitance between them, thereby providing low impedance power supply lines. A pair of signal conductors 3 and 4 are disposed one side of the power conductors 1 and 2, at positions corresponding to the center between the two power supply conductors 1 and 2 and extending parallel to the power supply conductors 1 and 2. It will be apparent that a plane containing the center lines of the signal conductors 3 and 4 is perpendicular to a plane containing the center lines of the power conductors 1 and 2. The respective distances between the signal conductor 3 and both of the power supply conductors 1 and 2 are made equal so as to exclude electrostatic induction from the power supply conductors 1 and 2. The respective distances between the signal conductor 4 and both of the power supply conductors 1 and 2 are also equal.
  • The respective conductors 1 to 4 are covered with insulation material 11 (referred to as insulation layer hereinafter) as shown in Fig. 3. Although the conductors 1 to 4 are covered with insulation layer 11 over the whole length of the conductors, a multiplex transmission terminal can be connected to the respective conductors 1 to 4 anywhere desired on the multiplex cable unit as mentioned below. Grooves 12 and 13 are formed on the surface of the insulation layer 11 corresponding to interface portions between the power conductors 1 or 2 and the signal conductor 3 and between the two signal conductors 3 and 4.
  • Referring to Figs. 4, 5 and 6, a terminal case 30 of a multiplex transmission terminal is composed of a top case half 30a and bottom case half 30b made of resin material. Both of the case halves 30a and 30b are rotatably coupled by one or more hinges 19 so that both of the case halves 30a and 30b can be opened and closed around the hinge 19. A lock mechanism 20 is provided at the right hand portion of the outside of the terminal case 30. A printed circuit board 25 is accommodated in the top case half 30a and possible circuit arrangement including such as integrated circuit chip 23 or other necessary components for use in the multiplex transmission terminal is provided on the printed circuit board 25. Such circuit arrangement including the integrated circuit 23 and other components are respectively connected to the conductor patterns 24 formed on the printed circuit board 25 so as to provide a desired terminal circuit.
  • Three pressing connector pins 15, 17 and 18 are downwardly projected from the printed circuit board 25 toward a recess 26f and one pressing type connector pin 16 is upwardly projected from the bottom case half 30b toward the recess 26f. The connector pin 15 is connected to the printed circuit patterns 24 and the connector pin 15 is also connected to other printed circuit pattern 24 through a flexible wire 27. The connector pins 15 and 16 are so projected that when the top case half 30a and bottom case half 30b are closed, the respective connector ends of the connector pins 15 and 16 are opposed in the recesses 26 and the connector pin 15 is coupled to the power supply conductor 1 and the connector pin 16 is coupled to the power supply conductor 2. The connector pins 17 and 18 are connected to the other printed circuit patterns.
  • The terminal 30 is mounted to the cable unit 10 in such a manner that the power conductor portion 10f is laid in the generally flat shaped recess 26f and signal conductor portions 10r are laid in the round recesses 26r. Then the terminal 30 is closed as shown in Fig. 4 and Fig. 6 with the top case half 30a and bottom case half 30b locked in a closed manner by locking member 20, the ends of the connector pins 15, 16, 17 and 18 penetrate the insulation layer 11 and the connector pins 15 and 16 contact to the power supply conductors 1 and 2 respectively and the connector pins 17 and 18 clamp and contact the signal conductors 3 and 4 by their fork shaped ends as shown in Fig. 6. In case the terminal 30 is correctly mounted to the cable unit 10, the respective projections 14 are fitted in the grooves 12 and 13. In other words, the grooves 12 and 13 can serve to position the connector pins 17 and 18 with respect to the conductors 3 and 4.
  • As described above, an advantage of the illustrated arrangement is in that the multiplex transmission terminal 30 can be mounted at anywhere desired on the cable unit 10 without any works to the cable such as cable cutting and end treatment.
  • Another advantage of the arrangement is in that since the power conductors are closely opposed, it is possible to decrease the power source impedance independent of length of the cable unit.
  • A still further advantage of the arrangement is in that the cable unit has such structure that cross talk between the power conductors and signal conductors is small, whereby noise on the signal conductors caused by the power conductors can be effectively avoided.

Claims (3)

  1. A cable arrangement (10) comprising:
       a pair of opposed power conductors (1,2) which are electrically isolated but closely adjacent each other;
       a pair of signal conductors (3,4) disposed at one side of said power conductors (1,2), the signal conductors extending parallel to the power conductors (1,2); and
       insulation layers (11) insulating said power conductors (1,2) from said signal conductors (3,4), characterised in that the centers of the respective signal conductors (3,4) are positioned substantially in a plane passing centrally between said pair of power conductors (1,2), at least approximately perpendicular to a plane containing the centers of the respective power conductors.
  2. A cable arrangement (10) according to claim 1, wherein said power conductors (1,2) have respectively generally flat plate shape.
  3. A cable arrangement (10) according to claim 1 or 2, wherein said insulation layers (11) have grooves corresponding to intermediate portions between said power conductor (1,2) and one of said signal conductors (3,4) and between two adjacent signal conductors (3,4).
EP88104258A 1987-03-18 1988-03-17 Cable arrangement for use in a multiplex transmission system Expired - Lifetime EP0283012B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63559/87 1987-03-18
JP62063559A JPH0721971B2 (en) 1987-03-18 1987-03-18 Multiplex transmission cable

Publications (3)

Publication Number Publication Date
EP0283012A2 EP0283012A2 (en) 1988-09-21
EP0283012A3 EP0283012A3 (en) 1990-02-21
EP0283012B1 true EP0283012B1 (en) 1994-06-15

Family

ID=13232698

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88104258A Expired - Lifetime EP0283012B1 (en) 1987-03-18 1988-03-17 Cable arrangement for use in a multiplex transmission system

Country Status (4)

Country Link
EP (1) EP0283012B1 (en)
JP (1) JPH0721971B2 (en)
CA (1) CA1295703C (en)
DE (1) DE3850155T2 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0433210A (en) * 1990-05-28 1992-02-04 Takenaka Komuten Co Ltd Under floor wiring sheet
FR2665868B1 (en) * 1990-08-16 1995-06-30 Menguy Didier EQUIPMENT FOR THE ELECTRICAL SUPPLY OF BODIES ON BOARD A VEHICLE.
US5378171A (en) * 1993-07-09 1995-01-03 Intermatic, Inc. Electrical cable connector
JPH0781182A (en) * 1993-09-20 1995-03-28 Seiko Epson Corp Carriage driving system for serial printer
DE19526809A1 (en) * 1995-07-13 1997-01-16 Siemens Ag On-board electrical supply network for automobile - has branch line, coupled to each switch or load, via plug connector incorporating multiplex control element, intercommunication circuit and load monitoring device
DE19526806A1 (en) * 1995-07-13 1997-01-16 Siemens Ag Vehicle electrical system with multiplex control for motor vehicles
EP0807999A1 (en) * 1996-05-17 1997-11-19 Siemens Aktiengesellschaft Power distribution system
DE19729411A1 (en) * 1997-07-09 1999-02-11 Siemens Ag Power distribution system
GB2363529A (en) * 1999-04-01 2001-12-19 Nor Web Dpl Ltd Coupling apparatus and method
DE10012177A1 (en) * 2000-03-13 2001-10-31 Wieland Electric Gmbh connection device
DE50011382D1 (en) * 2000-07-18 2005-11-24 Delphi Tech Inc Electric power and signal conductor
JP3706972B2 (en) * 2002-09-09 2005-10-19 ユニメックス株式会社 Conductive connector that can be attached to and detached from the power cord
FR2938123B1 (en) * 2008-10-30 2011-02-11 Ard Ind ELECTRICAL CONNECTION DEVICE COMPRISING AT LEAST ONE FLEXIBLE, DEFORMABLE FLAT CABLE

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0207649A2 (en) * 1985-06-27 1987-01-07 Cooper Industries, Inc. Mass terminable flat cable assembly with readily separable ground plane
EP0208138A1 (en) * 1985-07-09 1987-01-14 W.L. Gore & Associates GmbH Ribbon cable

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2218830A (en) * 1939-05-13 1940-10-22 Climax Radio & Television Co I Combined antenna and power cord
IT1138341B (en) * 1981-05-19 1986-09-17 Vittorio Baldoni FLAT ELECTRIC CABLE, IN PARTICULAR FOR POWER SUPPLY AND / OR REMOTE CONTROL OF USERS IN GENERAL, WITH SHEATH WITH DIFFERENTIATED STRUCTURE FOR MECHANICAL PROTECTION OF CONDUCTORS

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0207649A2 (en) * 1985-06-27 1987-01-07 Cooper Industries, Inc. Mass terminable flat cable assembly with readily separable ground plane
EP0208138A1 (en) * 1985-07-09 1987-01-14 W.L. Gore & Associates GmbH Ribbon cable

Also Published As

Publication number Publication date
JPS63231804A (en) 1988-09-27
DE3850155T2 (en) 1994-11-17
EP0283012A3 (en) 1990-02-21
EP0283012A2 (en) 1988-09-21
DE3850155D1 (en) 1994-07-21
CA1295703C (en) 1992-02-11
JPH0721971B2 (en) 1995-03-08

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