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CA1280479C - Terminal arrangement for use in a multiplex transmission system - Google Patents

Terminal arrangement for use in a multiplex transmission system

Info

Publication number
CA1280479C
CA1280479C CA000561769A CA561769A CA1280479C CA 1280479 C CA1280479 C CA 1280479C CA 000561769 A CA000561769 A CA 000561769A CA 561769 A CA561769 A CA 561769A CA 1280479 C CA1280479 C CA 1280479C
Authority
CA
Canada
Prior art keywords
conductors
terminal
cable
pair
casing
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
CA000561769A
Other languages
French (fr)
Inventor
Yoshinobu 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
Application granted granted Critical
Publication of CA1280479C publication Critical patent/CA1280479C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00Structural 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
    • H01R9/03Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/031Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for multiphase cables, e.g. with contact members penetrating insulation of a plurality of conductors

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Abstract

Abstract:
A multiplex transmission terminal consists of a pair of casing halves joined by a hinge for opening and closing. One or more connecting pins are provided in the casing halves so as to project into a recess formed in the casing. These connecting pins can penetrate an insulation layer of a cable and contact conductors therein, when the cable is clamped in the recess in the casing.

Description

Terminal arrangement for use in a multiplex transmission system The present invention relates to a multiplex terminal arrangement for a multidrop connection used in a multiplex transmission terminal for an industrial or vehicle system.
To enable the prior art to be described with the aid 5 of diagram the figures of the drawings will first be listed.
Fig. l is a circuit diagram showing an example of multiplex kransmission terminal;
; Fig. 2 is a perspective view of an example of a lO multiplex transmission terminal according to an embodiment of the present invenkion;
Fig. 3 is a perspective view showing an example of a cable used in the embodiment shown in Fig. 2;
Fig. 4 is a front view of the multiplex transmission 15 terminal shown in Fig. 2 with the casing halves opened;
Fig. 5 is a perspective view showing an example of the multiplex transmission terminal attached to a mul~iplex cable, and Fig. 6 is a perspective view of the multiplex 20 transmission terminal attached to the multiplex cable.
Fig. l shows an example of a multiplex transmission ~ , ~

~2i 3~

system using a multidrop connection system. In Fig. 1, 101 and 102 denote power transmission lines for supplying power to terminals 105 and 106, and 103 and 104 denote data transmission lines for transmitting data information 5 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 and a display lamp, which ar~ activated by the data, in addition to various switches 109 and 110 for inputting the data.
In the prior art, the power lines 101 and 102 and data lines 103 and 104 are connected to the respective terminals 105 and 106 by means of one or more separate connectors.
However, in the prior art, it has been necessary to 15 connect each cable with the terminal in such a manner that, after each cable end has been processed, a connector is attached to the cable end, whereby the cable is connected to the terminal. Thus the work for connecting the cable to the terminal is complicated. Moreover, it is necessary to provide a connector Eor receiving the end connector of the cable.
An essential object of the present invention is to provide a multiplex transmission terminal that is easily mounted on a cable assembly and in which each connecting 25 end of the multiplex transmission terminal can be easily connected to the cable assembly without any cable processing.
Another object of the present invention is to provide a multiplex transmission terminal that can be mounted anywhere on the cable assembly, as desired.
To this end, the invention consists of a multiplex transmission terminal for connection to a cable assembly having power conductors and signal conductors, said terminal comprising a casing body composed of a pair of casing halves connected by coupling means so that the halves can open and close; recess means defined inside said casing body for accommodating a part of said cable assembly; and at least one connecting member provided on 5 one of the casing halves, a connecting end of said connecting member projected in said recess whereby said connecting end can contact one of the conductors of said cable assembly.
Referring to Fig. 3, there is shown a multiplex cable lO unit 10 used for a multiplex transmission terminal according to the present invention. The cable unit comprises a pair of power supply conductors l and 2 of elongated strip shape extending parallel to each other.
The two conductors l and 2 are as close to each other as 15 possible, while assuring the necessary withstand voltage.
To locate the conductors 1 and 2 close to each other increases the capacitance between them, whereby to provide a low impedance power supply line. The cable unit further comprises a pair of signal conductors 3 and 4 disposed 20 close to each other and extending in parallel along one side of the power supply conductors l and 2. The ; respective distances between the signal conductor 3 and the power supply conductors l and 2 are equal to prevent electrostatic induction from the conductors l and 2. The respective distances between the conductor 4 and the conductors l and 2 are also equal.
The conductors l to 4 are covered with an insulation material ll (referred to as insulation layer hereinafter), as shown in Fig. 3. Although the conductors 1 to 4 are covered with this insulation layer ll throughout their whole length, a terminal can be connected to the respective conductors 1 to 4 at any desired location on the multiplex cable unit, as mentioned below.
Referring to Fig. 2, a terminal casing 30 is composed of a top half 30a and bottom half 30b made of resin material. The casing 30 is shown transparent to facilitate the explanation. The casing halves 30a and 30b are rotatably coupled by one or more hinges 19. A lock 5 mechanism 20 is provided at the right hand portion of the outside of the casing 30, this locking mechanism 20 comprising a projection 20b extending outwards from the bottom half 30b and a resilient arm 20a projected from the top half 3ûa in a generally L shape, so that the resilient 10 arm 20a can be releasably engaged beneath the lower part of the projection 20b.
A printed circuit board 25 is accommodated in the top half 30a, a circuit arrangement including such elements as an integrated circuit chip 23 or other components for use 15 in the multiplex transmission terminal, being provided on the printed circuit board 25. The components of such circuit arrangement are respectively connected to conductor patterns 24 formed on the printed circuit board 25, whereby to provide a desired terminal circuit.
Three pressing connector pins 15, 17 and 18 project downwardly from the printed circuit board 25 toward a recess 26, details of which are explained later, and one pressing type connector pin 16 projects upwardly from the bottom half 30b toward the recess 26. The connector pins 25 15 and 16 are so arranged that the respective connector ends are opposed in the recess 26, and the connector pin 15 is connected to one of the printed circuit pattern 24.
The connector pins 17 and 18 are connected to other printed circuit patterns 29, and the connector pin 16 is 30 connected to printed circuit pattern 24 through a conductor wire 27.
The recess 26 is formed by a combination of elongated recesses 26x extending in a longitudinal direction of each of the casing halves 30a and 30b on respective inner .~

suraces 31 and 32. The recess 26x has a shape that conforms to the outside shape of the cable unit 10. With this arrangement, when the half 30a and the half 30b are closed, in a manner shown in Fig. 2, a recess 26 is formed 5 extending in a longitudinal direction of the cable unit 10. The shape of the recess 26 is complementary to the outer shape of the multiplex cable unit 10, so that the multiplex cable unit 10 is accommodated in the recess 26 clamped by the inner surfaces 26y of the top half 30a and 10 bottom half 30b which define the recess 26x.
The respective connector pins 15 to 18 have their end portions fork shaped with the ends sharpened so that when the terminal 30 is closed about the cable unit 10, the ends of the respective connector pins 15 to 18 penetrate 15 the insulation layer 11 of the cable unit 10 and the ends of the connector pins are pressed into contact with the conductors 1, 2, 3 and 4, respectively. The connector pin 15 can he supported on the upper half 30a by a resilient member 27a so as to contact to the conductor 1 resiliently.
Before the terminal 30 is mounted on the cable unit 10, the casing halves are opened at the hinge 19, as shown in Fig. 4. The terminal 30 is mounted on the cable unit 10 by fitting the cable unit 10 in the recess 26 in such a manner that the power conductor portion lOf is laid in the 25 generally flat shaped recess 26f and the signal conductor portions lOr are laid in the round recesses 26r. The terminal 30 is then closed as shown in Figs. 2 and 5, with the casing halves locked in the closed position by engaging the arm 20a with the proiertion 20b. The ends of 30 the connector pins 15, 16, 17 and 18 now penetrate the insulation layer 11 and the connector pins 15 and 16 contact the power conductors 1 and 2 respectively, while the connector pins 17 and 18 clamp and contact the signal conductors 3 and 4 with their fork shaped ends, a shown in Fig. 6. Projections 14 fit into grooves 12 and 13.
Fig. 5 shows an example of mounting a terminal 30 on the cable unit 10 with an electric motor 7 and a lamp 8 coupled to the terminal 30 through a connection plug 60, 5 whereby to connect the motor 7 and lamp 8 to the connecting pins 21 projected from the side wall of the terminal 30.
~ s described above, an advantage o the present invention resides in that the terminal 30 can be mounted 10 on the cable unit 10 with only a clamping operation. It is easy to have the connector pins contact the conductors o the cable unit, without the need to work on the cable, such as cable cutting and end processing. Moreover, since no connector member is necessary, the cost of connecting the terminal to the cable is reduced.
Another advantage of the present invention is that the terminal can readily be mounted anywhere desired along the cable.

P~

Claims (5)

1. A multiplex transmission terminal for connection to a cable assembly having power conductors and signal conductors, said terminal comprising:
a casing body composed of a pair of casing halves connected by coupling means so that the halves can open and close;
recess means defined inside said casing body for accommodating a part of said cable assembly; and at least one connecting member provided on one of the casing halves, a connecting end of said connecting member projected in said recess whereby said connecting end can contact one of the conductors of said cable assembly.
2. A terminal according to claim 1, wherein said cable assembly is provided with a pair of parallel extending power supply conductors and a pair of signal conductors, said terminal comprising four connecting members corresponding to said power conductors and signal conductors.
3. A terminal according to claim 2, wherein said power supply conductors are a pair of generally flat, parallel plates, and said signal conductors are a pair of round wires, each conductor being covered with an insulation layer, the respective connecting members of the terminal being sharpened at end portions so that, upon closing of the halves, said end portions of the respective connecting members penetrate the insulation layer and contact the corresponding conductors.
4. A terminal according to claim 1, wherein said coupling means is hinge means provided on one side of the casing body.
5. A terminal according to claim 4, wherein said casing body further comprises locking means for maintaining a closed state.
CA000561769A 1987-03-18 1988-03-17 Terminal arrangement for use in a multiplex transmission system Expired - Lifetime CA1280479C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP62063560A JPH0821438B2 (en) 1987-03-18 1987-03-18 Terminal for multiplex transmission
JP63560/1987 1987-03-18

Publications (1)

Publication Number Publication Date
CA1280479C true CA1280479C (en) 1991-02-19

Family

ID=13232732

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000561769A Expired - Lifetime CA1280479C (en) 1987-03-18 1988-03-17 Terminal arrangement for use in a multiplex transmission system

Country Status (4)

Country Link
EP (1) EP0283013B1 (en)
JP (1) JPH0821438B2 (en)
CA (1) CA1280479C (en)
DE (1) DE3883032T2 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2753293B2 (en) * 1988-12-20 1998-05-18 株式会社フジクラ Optical fiber liquid detection sensor
JPH0466775U (en) * 1990-10-23 1992-06-12
DE4320327C1 (en) * 1993-04-13 1994-06-01 Siemens Ag Sensors or actuators for connection onto bus line - have block with blade contacts that are loaded to pierce cable insulation that is secured by screw clamping unit
WO1994024728A1 (en) * 1993-04-14 1994-10-27 Siemens Aktiengesellschaft Snap-on connector for electric lines
DE19504013C1 (en) * 1995-02-07 1996-07-18 Lumberg Karl Gmbh & Co Connection device for the optional production of a reusable electrical connection or tap on multi-core electrical lines
DE29503158U1 (en) * 1995-02-24 1995-04-20 Rehau Ag + Co, 95111 Rehau Electrical component
DE19526806A1 (en) * 1995-07-13 1997-01-16 Siemens Ag Vehicle electrical system with multiplex control for motor vehicles
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
CH690602A5 (en) * 1995-12-12 2000-10-31 Hera Rotterdam Bv Contacting arrangement for multi-core flat cable.
DE19630352C2 (en) * 1996-07-26 2000-04-06 Siemens Ag Module for connecting actuators and / or sensors
DE29701828U1 (en) * 1997-02-03 1997-04-10 Siemens AG, 80333 München Module for connecting an actuator or sensor
JP3605032B2 (en) 2000-06-07 2004-12-22 三洋電機株式会社 Solar cell module, solar cell module connection method, solar cell module installation method, and solar cell module ground connection method
EP1450451A1 (en) * 2003-02-22 2004-08-25 Briloner Leuchten GmbH Adapter for connecting a supply line of a conductor bar for a lighting system
EP3506434B1 (en) * 2018-01-02 2021-03-24 OSRAM GmbH A connector for linear lighting devices and linear lighting system comprising this connector
GB2578283B (en) * 2018-09-17 2022-07-13 Guzu Holdings Pty Ltd Electrical connector
DE102020129353A1 (en) 2020-11-06 2022-05-12 Weidmüller Interface GmbH & Co. KG Housing with a connection system for implementing branches on a plurality of continuous electrical conductors

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5274880A (en) * 1975-12-19 1977-06-23 Tai Fujita Apparatus for connecting electric wire
JPS57188267U (en) * 1981-05-25 1982-11-29
GB2136638A (en) * 1983-03-09 1984-09-19 Cannon Electric Electrical connectors
JPS60149072U (en) * 1984-03-15 1985-10-03 日本碍子株式会社 Insulated wire gripper
US4555158A (en) * 1984-08-06 1985-11-26 The Wallace Companies, Inc. Modular connector and system containing the same
JPS6210368U (en) * 1985-07-03 1987-01-22

Also Published As

Publication number Publication date
EP0283013A3 (en) 1990-02-21
EP0283013A2 (en) 1988-09-21
JPS63231885A (en) 1988-09-27
DE3883032D1 (en) 1993-09-16
EP0283013B1 (en) 1993-08-11
JPH0821438B2 (en) 1996-03-04
DE3883032T2 (en) 1994-01-05

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