EP0681351B1 - Connecteur électrique omnidirectionnel à plusieurs phases - Google Patents

Connecteur électrique omnidirectionnel à plusieurs phases Download PDF

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Publication number
EP0681351B1
EP0681351B1 EP95440021A EP95440021A EP0681351B1 EP 0681351 B1 EP0681351 B1 EP 0681351B1 EP 95440021 A EP95440021 A EP 95440021A EP 95440021 A EP95440021 A EP 95440021A EP 0681351 B1 EP0681351 B1 EP 0681351B1
Authority
EP
European Patent Office
Prior art keywords
rings
electrical connector
connector according
cable
contact
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
EP95440021A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0681351A1 (fr
Inventor
Alain Schneider
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.)
Sait Mining SA
Original Assignee
Sait Mining SA
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 Sait Mining SA filed Critical Sait Mining SA
Publication of EP0681351A1 publication Critical patent/EP0681351A1/fr
Application granted granted Critical
Publication of EP0681351B1 publication Critical patent/EP0681351B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/53—Bases or cases for heavy duty; Bases or cases for high voltage with means for preventing corona or arcing

Definitions

  • the present invention relates to a connector omnidirectional electric multi-phase forming an electrical junction between electrical cables of power distribution or between a cabinet distribution and a power cable such a connector is described, for example, in document GB-A-739514.
  • the power cable electric used for such applications includes the active conductors corresponding to the phases of the electric power supply. He understands also often a plurality of conductors electrical service and safety auxiliaries useful for powering devices annexes, for example lighting.
  • the electric cable supply with a conventional length of 50 meters, has an outer diameter often greater than 60 millimeters and a linear mass of the order of several kilograms per meter.
  • the present invention therefore aims to remedy these major drawbacks by proposing a connector omnidirectional electric multi-phase forming an electrical junction for electrical cables of power distribution, without position indexing between the two component parts of the junction.
  • the front face of the plug can be arranged opposite the front face of the base or from the other connector junction piece and inserted in this base or this junction piece in the same movement, regardless of the relative position of said plug with respect to the other junction piece.
  • the connector plug omnidirectional electric is, once introduced, free to pivot relative to the connector base feed.
  • the twisting of the electric cable of power distribution caused by mechanical stresses of the powered machine has as a consequence that the relative pivoting of the two components of the connector, without consequence none on the electrical or mechanical qualities of the junction.
  • a electric cable mooring device power distribution intended to prevent a mechanical traction exerted on the cable is not transmits to the internal connections of the connector omnidirectional electric.
  • the omnidirectional electrical connector according to the invention is intended to allow the connection between an electrical distribution cable and a power cable or between a distribution box and a power cable, said cable comprising, in addition to active conductors for supply currents, conductors auxiliaries for electrical safety signals and service, for example for monitoring, control or supply of ancillary devices, lighting or other.
  • the connector according to the invention breaks down in two sets, or complementary pieces of junction hereinafter called the "plug” and the “base”. Each of these two sets has a number of identical or similar component parts.
  • the connector according to the invention consists of generally two junction pieces 1 and 2 by example a base 1 as shown in Figure 1 and file 2. These two complementary pieces constitute in the joined state the electrical junction between a power cable and a distribution box or between two cables.
  • the base 1 has a metal body cylindrical 3 mounted on a support envelope 4, using a fixing device 5 such as a flange fixing, for example square with flat reach or other.
  • a fixing device 5 such as a flange fixing, for example square with flat reach or other.
  • This includes holes for the passage fastening elements 6 such as screws or studs with nuts or others which allow the immobilization of the body 3 of the base 1 on the support envelope 4.
  • the body 3 of the base 1 forms two front tubular cylindrical projections 7 and rear 8.
  • the front tubular projection 7 bears on its outer periphery a thread 9 provided for the mounting a threaded assembly sleeve 10 allowing the mechanical assembly of the body 3 of the base 1 with sheet 2 ( Figures 3 and 4).
  • the internal volume of the cylindrical projection tubular front 7 contains a tubular hollow body insulating contact holder interior 12 intended to come fit into an inner tubular hollow body homologous contact carrier insulator 11 enclosed in a envelope 13 of sheet 2.
  • Each of the inner tubular hollow bodies contact carrier 11 and 12 is identically shaped by the radial succession of tubular partitions coaxial cylindrical, for example two in number, respectively interior 14 and 15 of plug and socket and exterior 16 and 17 of plug and socket, delimiting between them cylindrical cavities 18 and 19 of plug and plinth.
  • This succession ends in the center, for the plug, by a cylindrical central well 20 used for additional contacts and for the base, for a receiving sleeve 21.
  • the inner and outer walls of the inner tubular partition 14 of plug 2 are each provided with an inner conductive ring 22 and of an outer conductive ring 23 while its external partition 16 has only one ring inner conductor 24 on its inner wall.
  • the inner and outer walls of the outer tubular partition 17 of the base are lined each of an inner conductor ring 25 and a outer conductor ring 26 while its partition interior 15 has only one conductive ring outer 27 on its outer wall.
  • Tubular partitions carry the rings conductors for example inlay, that is to say each embedded in a groove existing in the wall corresponding side.
  • the grooves are located at a distance sufficient of the common front of the partitions tubular.
  • the number of tubular partitions depends on the number of phases of the supply current. For a three-phase current, the number of partitions is equal to two for both base 1 and plug 2.
  • the rings conductors of plug 2 are each connected to the end of one of the power conductors such as 28, 29 and 30 of a power cable 31. It is even for base 1 with only one conductor power 32 is visible in Figure 3.
  • Each inner tubular hollow body insulator 11 or 12 of plug 2 or of base 1 present on its rear end three access lights such as 33, 34 and 35 regularly spaced around the perimeter rear exterior and delimited by three sections 36, 37 and 38 for access to connection terminals 39, 40 and 41 of the conductive rings with the conductors of power 28, 29 and 30 of the power cable 31.
  • each of the connection terminals is formed by a clamp attachment such as 42, 43 or 44 constituting the end a lateral extension such as 45, 46 or 47 that each has conductive rings.
  • Fixation of the ends of the power conductors 28, 29 and 30 at connection terminals 39, 40 and 41 is carried out conventionally by means of screw-nut assemblies such than 48, 49 or 50.
  • the conductive rings 22, 23 and 24 of plug 2 are angularly offset between them by a sufficient value to allow proper individualization of conductors 28, 29 and 30 and terminals 39, 40 and 41 as well as a certain ease in the assembly of connection.
  • some conductive rings have a groove on their inner face while others are full and with smooth side faces.
  • only the conductive ring 23 disposed on the outer wall of the inner tubular partition 14 is full and smooth.
  • the other two conductive rings 22 and 24 have in their inner side face a peripheral groove 51 and 52.
  • the conductive ring 26 of the base 1 present on its face lateral interior a peripheral groove 53.
  • some rings have the same like a peripheral groove on their inner face, while others are full and with side faces smooth.
  • the inner ring 26 of the partition outer 17 has such a groove.
  • the work-study program is inverse to that existing on sheet 2 so to establish a contact between the plug 2 and the base 1 electrical junction between the conductive rings by the interposition of an intermediate contact piece housed in these gorges. So there is a opposite correspondence between the solid rings and throat rings.
  • the actual electrical contact is obtained by an intermediate contact piece 54, by example of the multi-contact type, establishing the connection electric between two corresponding rings of the two complementary junction pieces base 1 and plug 2 when they are nested.
  • This intermediate contact piece 54 is housed recessed in the peripheral grooves of the conducting rings.
  • each multi-contact intermediate piece 54 affects the shape of a metal bracelet with contact blades 55 individualized and slightly rounded.
  • This piece is formed, for example, from and in a strip of metal perforated flat with transverse slots 56 uniformly distributed throughout the circular periphery. The width of these slots 56 is less than the width of the strip so that two successive slots 56 delimit between them a metal interval.
  • the band is slightly curved to make them stand out curved or arched during the shaping the bracelet and providing a spring to these bridges of material intended to constitute omnidirectional distribution of contact blades 55 electrical that will come into mechanical contact bearing on the smooth side face opposite each matching conductor ring.
  • these characteristics allow to confer at the junction elementary electric of each phase a character omnidirectional. All of these characteristics associated in the manner described above constitute the omnidirectional multi-phase connector totally original according to the invention.
  • ground braids 57 arranged around the conductors and under the sheath of the cable 31 are assembled and connected to a ground terminal 58 integrated into a metal ring 59 mounted in the bottom of the body 3 of the base 1 and in that of the plug 2.
  • the electrical connection is established between this ring 59 and the corresponding side wall of the base 1 or of the sheet 2.
  • the continuity of the ground connection between the base 1 and the plug 2 is obtained by the socket assembly 10 and by means of a metal bracelet 60 inserted into a peripheral groove made on the inner side surface of the front projection 7 of the body 3 of base 1.
  • a metal ring referenced also 59 of the base 1 keeps the body inside tubular 12 of the base 1 in abutment against a shoulder internal.
  • auxiliaries 61 are individually connected to inside the body of plug 2 to rings superimposed 62 mounted in succession with interposition insulating rings 63 on a central pin 64 disposed in the central well 20 of the hollow body inner tubular 11 of sheet 2. The end of this pin 64 forms an additional contact for a driver of a pilot circuit.
  • the number of conductors 61 and therefore of auxiliary circuits depends only on the length of the brooch.
  • the central spindle 64 is fitted into the sleeve 21 provided in the central part of the body 3 of the base 1.
  • On the lateral surface of this sleeve 21 are provided with contact rings separated by rings insulators corresponding to rings 62 and 63 respectively of pin 64 for the establishment of transverse electrical connections supplemented by the end link through the end contacts.
  • the power cable 31 is held in position by a multi-jaw mooring mandrel 65 66 shown in FIG. 1.
  • the mooring mandrel 65 is provided to prevent mechanical traction being exerted on the electric power distribution cable 31 is transmitted to connection terminals 39, 40 and 41 inside of sheet 2.
  • the body of sheet 2 contains in its lower end a sealing device end 67 of the cable gland type shown in following the mooring mandrel 65, on the side of the jaws 66 on the section view.
  • This device 67 consists of a sealing ring 68 of deformable material 69 taken sandwiched between two pressure washers, one end washer 70 and a support washer 71.
  • On the support washer 71 comes to wear a ring of force transmission 72 stressed in axial thrust by a closing nut 73 mounted at the end of the body 3 of sheet 2. All of these parts constitutes the end sealing device 67 of the cable gland type providing sealing and insulation adapted to the external environment of the connector.
  • FIG 4 there is shown the socket threaded assembly 10 which connects mechanically the body of the plug 2 to the body 3 of the plinth 1.
  • the inner surface of the end of the threaded assembly sleeve 10 located on the body side 3 of the base 1 has a thread provided for its engagement on the threaded part of the projection cylindrical front 7 of the body 3 of the base 1.
  • the socket assembly thread 10 is immobilized in rotation by the elastic pressure force of a metal rod 74 mounted in a groove on the projection 7.
  • the socket 10 has through holes such as 75 intended for the introduction of nipple screws such as 76 and access to them to ensure blocking in pivoting of the assembly.
  • Mooring mandrel 65 including the front rear comes into abutment against the end of the body inner tubular 11 of plug 2, is itself covered by a cap 77 having a profile interior with conical ramp 78 constituted for example of a succession of cylindrical segments and frusto-conical alternately arranged.
  • the peripheral end flange formed by the lateral succession of the ends of the jaws 66 of the mooring mandrel 65 has a general shape tapered. Jaws 66 are constrained in clamping concentric around the cable 31 by the play of the movement axial advance of the conical ramp 78 of the cover 77 against the end of the jaws. The clamping of the jaws 66 of the mooring mandrel 65 on the outer sheath of the cable 31 will be obtained by screwing the cap 77 onto the thread of the assembly sleeve which causes the complete immobilization of the cable 31 in order to avoid the transmission to connection terminals 39, 40 and 41 a mechanical stress which he can do the object.
  • the end seal 67 of the cable gland type is introduced into a threaded neck 79 delimited by the rear interior volume of the cap 77 and closed by nut 73 mounted on the neck thread 79 of the cap 77 in order to compress all of the parts forming the cable gland against the profile interior with internal 78 conical ramp ( Figure 3) of the neck threaded 79 of the cap 77.
  • Contact carrier tubular hollow bodies 11 and 12 are blocked in longitudinal translation by appropriate housing bottom shoulders and maintained thus in abutment to allow axial movements nesting and dislodging during use of the connector.
  • the coaxial rings conductors of plug 2 and socket 1 or the other junction piece ensuring electrical contact on their entire periphery, it is possible to present the front of sheet 2 without worrying about its relative position in relation to the front face of the base 1 or the other junction piece and fit together in the same movement the tubular hollow body 11 of the plug 2 in the tubular hollow body 12 of the base 1 or the other connecting piece.
  • cap 77 is connected to the body of plug 2 by screwing on the external surface rear of the body of plug 2. It is stopped in abutment against a shoulder 80 formed on the surface outside of the body of plug 2 and its self-loosening is condemned by three grub screws to nipples 76 arranged radially around the cap 77 and whose nipples enter a circular groove 81 machined on the external periphery of the body of the sheet 2.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Inorganic Insulating Materials (AREA)
  • Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
EP95440021A 1994-05-06 1995-05-03 Connecteur électrique omnidirectionnel à plusieurs phases Expired - Lifetime EP0681351B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9405775A FR2719705B1 (fr) 1994-05-06 1994-05-06 Connecteur électrique omnidirectionnel à plusieurs phases.
FR9405775 1994-05-06

Publications (2)

Publication Number Publication Date
EP0681351A1 EP0681351A1 (fr) 1995-11-08
EP0681351B1 true EP0681351B1 (fr) 1998-11-11

Family

ID=9463101

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95440021A Expired - Lifetime EP0681351B1 (fr) 1994-05-06 1995-05-03 Connecteur électrique omnidirectionnel à plusieurs phases

Country Status (8)

Country Link
EP (1) EP0681351B1 (zh)
CN (1) CN1115128A (zh)
AT (1) ATE173361T1 (zh)
DE (1) DE69505879T2 (zh)
ES (1) ES2124986T3 (zh)
FR (1) FR2719705B1 (zh)
PL (1) PL176950B1 (zh)
ZA (1) ZA953631B (zh)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007007541A1 (de) 2007-02-15 2008-08-21 Siemens Ag Hochstrom-Koaxialverbindung mit zwei miteinander verbindbaren Steckelementen sowie Gradientenspule mit angeschlossener Hochstrom-Koaxialleitung
DE102007059521B4 (de) * 2007-12-11 2016-11-17 Siemens Healthcare Gmbh Hochstrom-Koaxialverbindung mit zwei miteinander verbindbaren Steckelementen sowie Gradientenspule mit angeschlossener Hochstrom-Koaxialleitung
WO2012113106A1 (en) 2011-02-25 2012-08-30 Whirlpool Corporation A food processing device with an externally operated adjustment mechanism
CN102709864A (zh) * 2012-05-30 2012-10-03 江苏远方电缆厂有限公司 一种金属护套无机矿物绝缘电缆的终端
CN110623737B (zh) * 2018-06-22 2021-09-24 深圳市精锋医疗科技有限公司 结构简单的连接单元、连接机构
CN112350249B (zh) * 2020-11-03 2022-06-17 中国直升机设计研究所 一种用于电缆穿墙或穿舱的护件

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE497612C (de) * 1930-05-13 Aeg Steckvorrichtung mit konzentrisch angeordneten Kontakten
DE584467C (de) * 1931-06-12 1933-09-20 Oswald Kunze Mehrpolige Steckdose, insbesondere fuer Starkstrom
GB451292A (en) * 1935-03-08 1936-08-04 Gen Electric Co Ltd Improvements in or relating to electrical connectors or switch contacts of the plug and socket type
DE666336C (de) * 1936-10-20 1938-10-17 Gustav Hensel Elektrotechnisch Steckvorrichtung mit mehreren konzentrisch zueinander angeordneten Kontakten
GB739514A (en) * 1954-02-05 1955-11-02 Mij Voor Metaalbewerking Ind N Improvements in or relating to electric plug and socket connectors
US4863392A (en) * 1988-10-07 1989-09-05 Amerace Corporation High-voltage loadbreak bushing insert connector

Also Published As

Publication number Publication date
ZA953631B (en) 1996-01-03
ES2124986T3 (es) 1999-02-16
PL308435A1 (en) 1995-11-13
PL176950B1 (pl) 1999-08-31
FR2719705A1 (fr) 1995-11-10
EP0681351A1 (fr) 1995-11-08
DE69505879D1 (de) 1998-12-17
ATE173361T1 (de) 1998-11-15
DE69505879T2 (de) 1999-06-10
FR2719705B1 (fr) 1996-07-19
CN1115128A (zh) 1996-01-17

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