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WO1997002630A1 - Dispositif de couplage - Google Patents

Dispositif de couplage Download PDF

Info

Publication number
WO1997002630A1
WO1997002630A1 PCT/SE1996/000885 SE9600885W WO9702630A1 WO 1997002630 A1 WO1997002630 A1 WO 1997002630A1 SE 9600885 W SE9600885 W SE 9600885W WO 9702630 A1 WO9702630 A1 WO 9702630A1
Authority
WO
WIPO (PCT)
Prior art keywords
disc
coupling device
contact elements
electric
major face
Prior art date
Application number
PCT/SE1996/000885
Other languages
English (en)
Inventor
Sten Lundgren
Richard Tanimura
Original Assignee
Quad Erat Demonstrandum Aktiebolag
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 Quad Erat Demonstrandum Aktiebolag filed Critical Quad Erat Demonstrandum Aktiebolag
Publication of WO1997002630A1 publication Critical patent/WO1997002630A1/fr

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
    • G02B6/3817—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres containing optical and electrical conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R35/00—Flexible or turnable line connectors, i.e. the rotation angle being limited
    • H01R35/04—Turnable line connectors with limited rotation angle with frictional contact members
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3895—Dismountable connectors, i.e. comprising plugs identification of connection, e.g. right plug to the right socket or full engagement of the mating parts
    • 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
    • H01R13/02—Contact members
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • 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
    • H01R13/66—Structural association with built-in electrical component
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2105/00—Three poles

Definitions

  • the present invention generally relates to a cou ⁇ pling device for electric systems, especially for sys ⁇ tems with a plurality of units on one hand requiring power supply and on the other hand being able to commu- nicate with each other.
  • coupling devices mainly for power supply comprising a cable with at least two conductors and a coupling means at each end of the cable, each coupling means having contact elements each connect ⁇ ed to one conductor.
  • one of the coupling means of these known coupling devices is a male one and the other a female one, by this restricting their adaptabi ⁇ lity.
  • simpler electric coupling means nor ⁇ mally cannot be used as they do not satisfy the existing security requirements regarding e.g. tightness.
  • a first object of the present invention is to provide a simple coupling device of the type men ⁇ tioned above, eliminating coupling boxes by enabling a fast coupling of several cables to each other and/or to different devices or circuits. It must also be possible to connect the cables in different relative directions.
  • a second object of the invention is to achieve such a coupling device which also satisfies the existing requirements for tightness, i.e. which enables a close relative coupling of components included in electric equipment.
  • a rotatable coupling of a cable to the pins of a plug is already known from US-A-4,026,618.
  • a cir ⁇ cular disc is used, which is made of an electrically insulating material with two electric contact elements each extending along a circle which is concentric with the disc centre and which is positioned on one major face of the disc, and each being provided with a connection conductor projecting radially from the disc.
  • the plug has one more such a circular disc with the two plug pins con- nected to the two electric contact elements in place of the two radially projecting connection conductors.
  • the connection conductors might be arranged in arbitrary rotatable positions in relation to the two plug pins.
  • the present invention uses part of the design of the plug known in the art to provide a coupling between the various cables in various relative directions.
  • a coupling device comprises a cable having at least two conduc- tors, as well as at least two coupling means, each having contact elements which are each connected to one conduc ⁇ tor at or between the cable ends, and according to the invention this coupling device is characterised in that each coupling means consists of a circular disc of an electrically insulating material, the electric contact elements each extending along a circle which is concen ⁇ tric with the disc centre and which is positioned on one major face of the disc, that the contact elements on at least one of the circular discs are each axially connect- ed to a contact element on the other disc major face, the latter contact elements each being extended along a circle which is concentric with the disc centre, and that the cable conductors extend essentially radially to the contact elements of each disc with contact elements situated on both major faces.
  • the first object of the present invention is achieved.
  • the second object is achieved in that each of the discs on each major face with contact elements is provided with a sealing element along its whole circumference.
  • means are conveniently arranged for coupling of the cir- cular disc to the other circular disc/discs, each having corresponding electric contact elements and sealing ele ⁇ ments along their whole circumference, the sealing ele ⁇ ments being axially complementary to the sealing elements of the neighbouring disc with which they are intended to cooperate.
  • the other circular disc may be identical with the first one, but may also be part of an electric circuit or device, its electric contact elements being necessary on only one of its major faces. According to the invention it is even possible to build in electrical components or circuits into the cir ⁇ cular disc, by its electric contact elements on one major face being coupled to corresponding electric contact ele ⁇ ments on the other major face by means of the electric component or circuit which is included in the disc itself.
  • the invention provides a uniform coupling sys ⁇ tem, especially for systems with a serial bus.
  • the cou ⁇ pling device is normally provided with three or four poles, thus implying that one and the same contact with several poles can serve all normal serial bus protocols, including power supply and earthing.
  • the same uniform contact may also be screened.
  • the invention provides essential advantages as to simplicity, economy and security. This is achieved among other things by the facts that the power supply as well as the signal communication can be provided simul ⁇ taneously, that installation and especially cabling ope ⁇ rations are simplified and thus installation time is saved, that any pole confusion is eliminated, that wires can be connected relative to each other in almost any direction, that tight couplings are achieved, and that space can be saved due to the compactness of the cou ⁇ pling.
  • Fig. 1 is a plan view of an embodiment of a coupling device according to the invention
  • FIG. 2 are cross-sectional views along the lines II-II in Fig. 1
  • Fig. 3 is a cross-sectional view of a coupling device according to the invention, the device being based on the coupling device of Fig. 1,
  • Fig. 4 is a block diagram and shows an electric sys ⁇ tem using the coupling device according to the invention
  • Fig. 5 is a plan view and shows an alternative embo ⁇ diment of a coupling device according to the invention
  • Fig. 6 is a cross-sectional view corresponding to the cross-sectional view in Fig. 3 and shows a first embodiment of the coupling device according to the inven- tion with a light guide
  • Fig. 7 is a cross-sectional view corresponding to the cross-sectional view in Fig. 3 and shows a second embodiment of the coupling device according to the inven ⁇ tion with a light guide
  • Fig. 8 is a plan view and shows an example with two coupling devices according to the invention, each having a plurality of circular discs.
  • the contact elements 2-4 can project into, but not through the disc 1', as shown to the left in Fig. 2.
  • the contact elements 2-4 can also extend axially through the disc 1", as shown to the right in Fig. 2, thus providing the contact elements 2 '-4' , each extended along a circle which is concentric with the centre of the disc 1" and which is positioned on the other major face 6 of the disc
  • the contact elements 2-4 in the latter case form three concentric contact paths on the major face 5, which in cross-section have a convex profile, and also form three concentric contact paths on the major face 6, which have a plane profile, as also shown in Fig. 2.
  • the contact elements 2-4 on the major face 5 may themselves be resilient in the axial direction. Such a resilience can also be achieved by selecting for the disc 1 an elec ⁇ trically insulating material which is somewhat elastic.
  • the electric contact elements 2-4 do not quite extend through 360° and instead leave a sector 7 of about 45° free in the disc 1. This free sec ⁇ tor 7 is used for three conductors 8 in a cable 9 between the two circular discs 1 of the coupling device.
  • the con- ductors 8 extend essentially radially from one end of the respective contact elements 2-4 and within the associated major face 5, 6.
  • the conductors 8 of the cable 9 may alternatively extend axially to the contact elements 2-4, which may then also extend completely through 360°.
  • Each disc 1 further comprises a centre hole 11 form ⁇ ed in a hub 12 centrally fixed in the disc 1.
  • the disc 1 ' also comprises around its outer circum- ference a flange 13 directed axially from the major face 5. Besides the flange 13 the disc 1" comprises a corre ⁇ sponding circumferential groove 14 in the major face 6. The flange 13 and the groove 14 constitute complementa ⁇ rily formed sealing elements.
  • the disc 1 is shown as a plane disc with a substantially constant thickness. However, the thick ⁇ ness of the disc may decrease somewhat towards the centre of the disc 1 for reasons that will be explained below.
  • the disc 1 may also have a cross-section other than the plane one shown in Fig. 2, but the major faces 5 and 6 should have an essentially matching shape.
  • the hub 12 of the disc 1" comprises complemen ⁇ tarily shaped sealing elements arranged directly around the centre hole 11 in the form of flanges 15, 16 and axially complementary grooves 17, 18.
  • the disc 1* com ⁇ prises, however, only the flange 15 and the groove 17.
  • the coupling device according to the invention may comprise further circular discs 1' or 1" between the discs 1 at the ends of the cable 9.
  • An example of two inventive coupling devices interconnected on one spot is shown in Fig. 8.
  • the coupling device according to the invention shown in Figs 1 and 2 is conveniently produced by injection moulding in a suitable mould, where the contact elements 2-4 coupled to the corresponding conductor 8 and the cen- tre hub 12 are arranged before insertion of the injec- tion-mouldable, electrically insulating material.
  • Fig. 3 Several coupling devices according to the invention may be easily coupled together, as shown in e.g. Fig. 3.
  • Fig. 3 Here, three such circular discs 1" as shown in Fig. 2 are placed adjacent to each other with a common axis.
  • the conductors 8 themselves are not shown in Fig. 3.
  • the contact elements 2-4 of each disc 1" electrically contact the contact elements 2 '-4' of each neighbouring disc 1".
  • the contact elements 2-4 and 2 '-4' are continuous on each major face 5, 6 outside of the sector 7, but this is not necessary for the electric contact between the contact elements of neighbouring discs.
  • Each disc 1" seals against the neighbouring disc 1" by means of the sealing elements 13-18 of the discs.
  • discs of an electrically insulating material are used, either with the sealing elements 13, 15 and 17 or the sealing ele ⁇ ments 14, 16 and 18. These discs do not necessarily have any electric contact elements.
  • FIG 3 shows such a disc 19 comprising the sealing elements 14, 16 and 18 and also a centre hub 20 with a radial flange 21 possibly extend ⁇ ing over the whole free major face of the disc 19, as shown in the left half of the figure.
  • the shown disc 19 has three circular contact paths 22-24 in positions cor- responding to the contact elements 2-4 and 2' -4' on its major face directed towards the free major face of one of the outer discs 1".
  • the disc 19 is provided with a light-emit ⁇ ting diode 25 connected between the contact paths 22 and 23, and a light-emitting diode 26 connected between the contact paths 22 and 24.
  • the light-emitting diodes 25, 26 may thus be used to indicate that an electric voltage is applied over the respective contact elements and, thus, over the corresponding conductors.
  • a disc 1' could also be used as an upper end of the pile of discs in Fig. 3.
  • a disc essentially corresponding to the disc 19 can be provided to close the other disc 1" (the lowest one in Fig. 3) with a free major face. All discs can be clamped together by means of a screw joint, a riveted joint or some kind of bundle joint.
  • the centre hubs 12, 20 can also be formed with a bayonet joint to clamp the various discs.
  • the sealing elements 13-18 and the hubs 12, 20 may then have such dimensions in the axial direction that a convenient contact pressure prevails between the contact elements 2-4 and 2 '-4' of the various discs when all neighbouring discs are maximally clamped. To achieve the right contact pressure, it may also be convenient to have the thickness of the discs 1 decrease towards the centre. As shown in Fig.
  • a circular disc 27 essentially conforming with the disc 1 ' and made of an electrically insulating material and having contact paths 28-30, whose shape corresponds to the contact paths of, for instance, the contact elements 2-4 on the major face 5 in Fig. 2, can be fixedly mounted in a housing 31 of an electric device.
  • the housing 31 may contain the electric system, which by means of conductors 32-34 is connected to the contact paths 28-30 and thus to the conductors 8 connect ⁇ ed to the contact elements 2-4 and 2 '-4' of the discs 1.
  • Fig. 4 shows an electric system with on one hand a central control unit 37 and, on the other hand, two dif ⁇ ferent types of circuits Q and R. Both the unit 37 and the circuits Q and R have contact discs corresponding to the disc 27 in Fig. 3. The circuits R are also provided with a disc which is complementary to the disc 27 with respect to the sealing elements.
  • the coupling device described above can be modified in several respects within the scope of the invention.
  • the number of contact elements should at least be two.
  • Fig. 5 shows an embodiment with four contact ele ⁇ ments, of which two contact elements 38 and 39 at diffe ⁇ rent distances from the centre of the corresponding disc do not have any connection conductors connected to them.
  • This coupling device is especially suited to connect a number of circuits in a loop, as shown in e.g. Fig. 4, each circuit in the loop being able to achieve a contact between the contact elements 38 and 39.
  • electric components or circuits can be accommodated in the interior of the disc 1 and be connected between selected electric contact elements on one and/or the other of the major faces.
  • An example of such a component is a matching resistor.
  • the cir ⁇ cumferential surface of the disc 1 may have an electri- cally conductive coating to provide an electric screen 40 for the inside of the disc 1. This screen 40 can continue around the conductors 8 outside of the disc 1.
  • the coupling device according to the invention can also be used to transmit optical signals, in which case, in addition to the two contact elements 2, 3 and 2', 3', respectively, for power supply, an optical conductor 41 is inserted through the sector 7 into the centre of a disc 1, where it is con ⁇ nected to an optical conductor item 42 which is extended axially in the disc centre and, when connected to another disc 1 of this type, is optically connected to the opti ⁇ cal conductor item 42 of that disc.
  • one or more incoming optical conductors 43 can, as an alternative, be connected to an opto-electric converter 44 inserted in the disc 1 and adapted to transmit the optical signal in electric form by means of one of the contact elements 2-4 and 2 ' -4' , respectivel .

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Multi-Conductor Connections (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Abstract

Ce dispositif de couplage comprend un câble (9) comportant au moins deux conducteurs (8), ainsi que des moyens (1) de couplage situés au niveau de chaque extrémité du câble et possédant chacun des éléments (2-4) de contact, lesquels sont reliés chacun à un conducteur. Les moyens (1) de couplage consistent en un disque (1'; 1') circulaire réalisé dans un matériau électro-isolant, les éléments (2-4) de contact électriques s'étendant chacun le long d'un cercle qui est concentrique avec le centre du disque et placé sur une face (5) principale de celui-ci.
PCT/SE1996/000885 1995-07-03 1996-07-02 Dispositif de couplage WO1997002630A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9502404-8 1995-07-03
SE9502404A SE505914C2 (sv) 1995-07-03 1995-07-03 Kopplingsanordning

Publications (1)

Publication Number Publication Date
WO1997002630A1 true WO1997002630A1 (fr) 1997-01-23

Family

ID=20398826

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1996/000885 WO1997002630A1 (fr) 1995-07-03 1996-07-02 Dispositif de couplage

Country Status (2)

Country Link
SE (1) SE505914C2 (fr)
WO (1) WO1997002630A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1424750A1 (fr) * 2002-11-27 2004-06-02 FESTO AG & Co Dispositif de connection électromécanique avec sortie de cable tournante
EP3133213A1 (fr) * 2015-08-21 2017-02-22 MTS Maschinentechnik Schrode AG Systeme de raccordement
EP3096175A3 (fr) * 2015-05-19 2017-03-01 Swarovski Optik Kg Dispositif optique a distance comprenant un boitier et un accessoire de support
WO2017072620A1 (fr) 2015-10-27 2017-05-04 Fischer Connectors Holding S.A. Connecteur multipolaire
US11374351B2 (en) 2018-04-06 2022-06-28 Fischer Connectors Holding S.A. Multipolar connector
US11616324B2 (en) 2018-04-06 2023-03-28 Conextivity Group Sa Multipolar connector

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4026618A (en) * 1975-12-31 1977-05-31 Straka Robert J Low profile electrical male plug
US4643508A (en) * 1982-02-03 1987-02-17 Siemens Aktiengesellschaft Direction-sensitive sensor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4026618A (en) * 1975-12-31 1977-05-31 Straka Robert J Low profile electrical male plug
US4643508A (en) * 1982-02-03 1987-02-17 Siemens Aktiengesellschaft Direction-sensitive sensor

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1424750A1 (fr) * 2002-11-27 2004-06-02 FESTO AG & Co Dispositif de connection électromécanique avec sortie de cable tournante
US6986665B2 (en) 2002-11-27 2006-01-17 Festo Ag & Co. Plug connector having a rotatable outgoing cable part
EP3096175A3 (fr) * 2015-05-19 2017-03-01 Swarovski Optik Kg Dispositif optique a distance comprenant un boitier et un accessoire de support
US10139615B2 (en) 2015-05-19 2018-11-27 Swarovski-Optik Kg. Long-range optical device with a housing and a support means
EP3133213A1 (fr) * 2015-08-21 2017-02-22 MTS Maschinentechnik Schrode AG Systeme de raccordement
CN108352665A (zh) * 2015-10-27 2018-07-31 费希尔联接器股份有限公司 多极连接器
IL258911A (en) * 2015-10-27 2018-06-28 Fischer Connectors Holding Sa Multi-polar connector
WO2017072620A1 (fr) 2015-10-27 2017-05-04 Fischer Connectors Holding S.A. Connecteur multipolaire
US10574006B2 (en) 2015-10-27 2020-02-25 Fischer Connectors Holding Sa Multipolar connector with circular contacts
AU2016347360B2 (en) * 2015-10-27 2021-04-01 Fischer Connectors Holding S.A. Multipolar connector
EP3369145B1 (fr) * 2015-10-27 2023-08-30 Conextivity Group SA Connecteur multipolaire
US11374351B2 (en) 2018-04-06 2022-06-28 Fischer Connectors Holding S.A. Multipolar connector
US11616324B2 (en) 2018-04-06 2023-03-28 Conextivity Group Sa Multipolar connector
US11616320B2 (en) 2018-04-06 2023-03-28 Conextivity Group Sa Multipolar connector

Also Published As

Publication number Publication date
SE9502404L (sv) 1997-04-23
SE9502404D0 (sv) 1995-07-03
SE505914C2 (sv) 1997-10-20

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