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EP3633794B1 - Anschluss - Google Patents

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Publication number
EP3633794B1
EP3633794B1 EP19199105.8A EP19199105A EP3633794B1 EP 3633794 B1 EP3633794 B1 EP 3633794B1 EP 19199105 A EP19199105 A EP 19199105A EP 3633794 B1 EP3633794 B1 EP 3633794B1
Authority
EP
European Patent Office
Prior art keywords
main
conductor
section
connector
channel
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.)
Active
Application number
EP19199105.8A
Other languages
English (en)
French (fr)
Other versions
EP3633794A1 (de
Inventor
Bruno Truong
Ghislain Despesse
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
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 Commissariat a lEnergie Atomique CEA, Commissariat a lEnergie Atomique et aux Energies Alternatives CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of EP3633794A1 publication Critical patent/EP3633794A1/de
Application granted granted Critical
Publication of EP3633794B1 publication Critical patent/EP3633794B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
    • H01R11/07—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations being of the same type but different sizes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/01—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the form or arrangement of the conductive interconnection between the connecting locations
    • 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
    • H01R4/2408—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation actuated by clamping screws
    • 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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut
    • H01R4/44—Clamping areas on both sides of screw
    • 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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/01—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for connecting unstripped conductors to contact members having insulation cutting edges
    • 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
    • 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
    • H01R4/58—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 characterised by the form or material of the contacting members
    • H01R4/62—Connections between conductors of different materials; Connections between or with aluminium or steel-core aluminium conductors

Definitions

  • the present invention relates to a connector intended to electrically connect a main conductor and a secondary conductor.
  • the present invention relates in particular to a connector making it possible to facilitate the parallel electrical connection of electrical equipment to a main cable via a plurality of secondary cables.
  • the connector according to the present invention can be implemented in a multi-conductor electrical cable provided with a main cable, comprising a main conductor, to which are connected, electrically via connectors, branch cables, each comprising a secondary conductor.
  • the branch cables and the main cable comprise a common sheath, arranged to keep said branch cables attached, over their entire length, to the main cable, and also arranged to allow the branch cables to be detached while preserving the the electrical insulation of the latter as well as their electrical connection to the main cable.
  • the electrical connection, particularly in parallel, of a large number of pieces of equipment generally requires the implementation of a wiring network intended to electrically connect each of said pieces of equipment to an electrical source.
  • cabling networks using a terminal block occupy a predominant place.
  • FIG. 1 illustrates a wiring network 1 provided with a plurality of electrical cables 2 connected to a terminal block 3.
  • the wiring network 1 at terminal block 3 is not waterproof.
  • the cabling network 1 can use male and female connectors so as to form branches from a main cable.
  • installing the connectors involves cutting the main cable, and crimping, for example with pliers, on either side of the section of said main cable a male female connector system.
  • the male female connector system is provided with a branch at which a secondary cable can be connected.
  • the cabling network in the form of a prefabricated harness, the principle of which is taken up in figure 2 .
  • the cabling network comprises a main cable from which secondary cables themselves extend with a plurality of secondary cables.
  • An insulating sheath protects the main conductor and the secondary conductors, while the electrical connection points between the main conductor and the secondary conductors are reinforced by an overmolded seal.
  • such a harness generally prefabricated, requires, if it is made to measure, to know beforehand the exact route that will take up to the various electrical equipment in the final installation.
  • ferrules of unused secondary cables are not electrically insulated.
  • An aim of the present invention is then to propose a connector allowing simplified manufacturing of a cabling network compared to cabling networks known from the state of the art.
  • Another aim of the present invention is to propose a connector allowing the electrical connection of secondary conductors to a main conductor without resorting to cutting the main conductor.
  • the document FR2370369 describes a terminal for electrical conductors.
  • the document FR2694663 describes a connector for connecting, branching and connecting electrically conductive wires or cables.
  • the document CN201868832 describes a junction box.
  • the aims of the present invention are achieved by a connector according to claim 1.
  • the central section is crossed, at the level of a passage communicating between the main channel and the secondary channel, by the intermediate section.
  • the communicating passage is also open along one end of the central section so as to allow the mounting, by sliding in the longitudinal direction, of the electrical connection means and the connecting member.
  • the main contact section and the secondary contact section each form a protuberance of elongated shape or nipple shape, or of pointed shape.
  • the main contact section and/or the secondary contact section have a complementary shape, respectively, to the surface defining the main channel, and the surface defining the secondary channel.
  • the intermediate section comprises a clip ensuring the function of holding the electrical connection means at the level of the central section.
  • the electrical connection means comprise a screw, in particular a headless screw.
  • the connecting member comprises a drilling at the level of the central section arranged so that the thread of the screw opens into the main channel and the secondary channel, and allows the tightening, respectively, of the main conductor and of the secondary conductor.
  • the main channel and/or the secondary channel comprises a side slot over its entire length.
  • the secondary part is tubular in shape, and comprises a contraction zone forming the secondary stop.
  • the main part is tubular in shape.
  • the secondary channel is provided with anchoring means intended to maintain the secondary conductor in a locking position
  • the anchoring means comprise protruding elements intended to scratch the secondary conductor.
  • the connecting member is in one piece.
  • the connecting member is an assembly of an upper section and a lower section assembled at the level, respectively, of their central section, called, respectively, upper central section and lower central section.
  • the upper section and the lower section are essentially symmetrical to each other with respect to a plane comprising the axes of elongation of the main channel and the secondary channel.
  • connection means integrate a fuse function.
  • the present invention relates to a connector provided with two parallel channels called, respectively, main channel and secondary channel and separated by a central section.
  • the connector is particularly intended to connect a main conductor with a secondary conductor.
  • the connector can, in this regard, also be provided with electrical connection means ensuring electrical contact between said wires as soon as the latter are inserted into one or the other of the main and secondary channels.
  • the connector is advantageously used in a multi-conductor electrical cable.
  • the multi-conductor electrical cable is in particular provided with a main conductor extending over the entire length of said cable, and with a plurality of secondary conductors, connected for example along one of their ends to the main conductor, and intended to form branches of said main conductor.
  • the assembly formed by the main conductor and the secondary conductors is coated with a coating sheath arranged to form, respectively, a main cable with the main conductor, and with the secondary conductors branch cables.
  • the insulating sheath is arranged to hold the branch cables over their entire length, integrally with the main cable, and also to be cut so as to release the branch cables while retaining the insulating sheath around the main and secondary conductors.
  • “cable” means a plurality of electrical conductors united in a protective sheath.
  • a cable according to the present invention must also include an electric wire.
  • FIG. 3a represents a multi-conductor electrical cable 100.
  • the cable 100 extends over a length, called the main length Lp.
  • the main length Lp can be between several meters and several tens of meters or even several kilometers.
  • the cable 100 notably comprises a main conductor 210 coated by a coating sheath 220 and forming with the latter a main cable 200.
  • the main cable 200 extends along the main length Lp. It is understood, without it being necessary to specify it, that the main conductor 210 also extends along the main length Lp.
  • the main conductor 210 may comprise a metal core, the section of which depends on the intended application and/or the intensity of the current that it is intended to transport.
  • the main conductor 210 may include several parallel, twisted, braided, etc. conductors.
  • the main conductor 210 may in particular comprise copper and/or aluminum.
  • Cable 100 also includes drop cables 300.
  • Each branch cable 300 notably comprises a secondary conductor 310 embedded in the coating sheath 220.
  • the secondary conductor 310 may comprise copper and/or aluminum.
  • the secondary conductor 310 can be held securely over its entire length to the main cable 200.
  • the secondary conductors can be held parallel to the main cable 200 or twisted along and around the main cable 200.
  • the cable 100 comprises a covering sheath 220, of generally elongated shape, and coating a main conductor 210 as well as a plurality of secondary conductors 310 arranged for example parallel to the main conductor 210.
  • the coating sheath 220 is in intimate contact with the secondary conductors 310 and the main conductor 210. More particularly, the space likely to be present between the secondary conductors 310 and the coating sheath 220 is at least 5 times lower, or even 20 times lower, than the volume of said secondary conductors 310.
  • the space likely to be present between the main conductor 210 and the coating sheath 220 is at least 5 times less, or even 20 times less, than the volume of said main conductor.
  • the secondary conductor 310 and the main conductor 210 may each comprise a different material.
  • the main conductor 210 may comprise a metal having a very low resistivity (for example copper) so as to be able to transport a large quantity of current, and the secondary conductors 310 be made of aluminum.
  • main conductor 210 can be made of aluminum in order to reduce the overall mass of the cable, and the secondary conductors 310 of copper in order to facilitate the electrical connection of the branch cables to electrical equipment.
  • the assembly comprising the coating sheath 220, the main conductor 210 and the secondary conductors 310 is flexible, devoid of branches and electrically isolated from the external environment.
  • the cable multi-conductor electrical 100 according to the present invention has a greater compactness than the harnesses known from the state of the art.
  • the multi-conductor electrical cable 100 has an essentially constant section over the entire length of said cable.
  • the “section of the cable” corresponds to the intersection of said cable with a plane perpendicular to its direction of elongation.
  • Each secondary conductor 310 is provided with a contact section 310a and at least one branch segment 310b.
  • the contact section 310a is at one end of the secondary conductor 310.
  • the branch cables 300 can be regularly distributed along the main cable 200.
  • the branch cables 300 can all be of the same length.
  • the branch cables 300 can have a length of around ten centimeters (for example 10 cm) to several meters (for example 10 m).
  • the length of the branch cables 300 is less than that of the main cable 200.
  • the contact section 310a is connected to the main conductor 210.
  • the branch segment 310b is isolated from the main conductor 210 by a section, called insulation section 110, of the coating sheath 220. In other words, a section of the coating sheath is interposed between each branch segment 310b and the main conductor 210.
  • Each of the branch cables 300 can be, at least in part, detached from the cable 100 while preserving the electrical insulation of the entire cable 100.
  • a branch cable 300, partially detached, forms a branch of the cable 100 capable of being used for the electrical connection of equipment to said cable 100.
  • the insulation section 110 can be adapted to be partly cut, according to the extension length of the cable 100, so as to release a portion of said branch cable while preserving the insulation by the covering sheath of the branch cable considered.
  • the isolation section 110 may include a zone of mechanical weakness ( figure 5b ) adapted to allow tear-off cutting.
  • zone of mechanical weakness we mean a zone which breaks first when a force is exerted on the insulation section.
  • the zone of mechanical weakness can advantageously be arranged halfway between the branch segment 310b and the main conductor 210. Still advantageously, the zone of mechanical weakness can include a thinning along a cutting line of the section isolation 110 ( figures 5b and 5c ).
  • each branch cable 300 may include in its extension a termination 330 ( figure 3a ), devoid of secondary conductor.
  • each termination 330 is arranged in the extension of a branch segment 310b.
  • This termination 330 is particularly advantageous since it can, for example, play the role of initiation section for a tear-off cut.
  • termination 330 of a branch cable 300 since the latter is at least partially detached, makes it possible to guarantee the electrical insulation of said cable.
  • the exterior surface of the coating sheath can, moreover, include a marking 400 making it possible to identify the terminations 330 of each of the branch cables 300.
  • the marking 400 can for example be a paint mark or a difference in color of the coating sheath.
  • the terminations 330 can be pre-weakened so as to facilitate the detachment of the branch cables 300 from said terminations 330.
  • the pre-weakening can take the form of a notch, or a multitude of notches (dotted pre-weakening), formed in the coating sheath at the level of each termination 330.
  • the detachment of a branch cable at its termination 330 can also be carried out with cutting pliers 800 ( Figure 23 ).
  • the branch cables 300 can have a length at least twenty times greater than the diameter of the branch segment. This dimensioning gives the branch cables flexibility to facilitate their reorientation and/or positioning with a view to their electrical connection to equipment.
  • the branch cables 300 form at least one row of branch cables 300, for example two rows ( Figure 6 ), arranged in continuity with each other.
  • This mode is particularly advantageous because it facilitates the manufacture of the cable by an extrusion process.
  • the secondary conductors 310 may comprise an electrically insulating core around which a conductive material extending over the length of the secondary conductor is arranged.
  • the electrically insulating core may in particular comprise a fibrous material, and in particular carbon fiber.
  • the electrically insulating core is particularly advantageous because it reinforces the mechanical strength of the cable.
  • the conductive material disposed around the core may include braided or twisted conductors.
  • the secondary conductors 310 of the branch cables 300 arranged in a row comprise a common core.
  • This core common to the secondary conductors 310 makes it possible to improve the mechanical strength, in particular the mechanical strength in tension, of the cable.
  • initiating the detachment of a branch cable 300 at its termination may require cutting the common core at said termination 330, in particular with pliers 800 ( Figure 23 ).
  • a spacer can be placed in the extension of each of the secondary conductors 310, and in particular the secondary conductors 310 of the same row of branch cables 300.
  • the spacers can have a diameter equivalent to the secondary conductors 310 which they extend.
  • the spacers can in particular be in contact with the ends of two adjacent secondary conductors 310.
  • Spacers may include Kevlar.
  • the contact between a contact section 310a and the main conductor 210 can be a direct contact.
  • direct contact can be obtained by tightening the contact section against the main conductor ( figure 7a ), or by contact between metallic wire strands emerging from the contact section and the main conductor ( figure 7b ), or by fusion between the contact section and the main conductor ( figure 7c ).
  • contact between the contact section 310a and the main conductor 210 is made via a part, called contact part 400.
  • the contact part can in particular envelop, at least partially, the main conductor 210 and the contact section 310a.
  • Such a contact part 400 makes it possible to reinforce the cable 100 at the level of the contact between the secondary conductors 310 and the main conductor 210.
  • this reinforcement offers greater resistance to tearing during the detachment of a branch cable, and thus makes it possible to preserve the insulation following the partial detachment of a branch cable 300.
  • the contact part 400 can for example be an electrically conductive part clamping a branch cable 300 against the main cable 200.
  • the contact part 400 can comprise a metal strip coating or surrounding the contact section 310a and the main conductor 210 at said contact section 310a.
  • the contact piece 400 as presented in figure 8a , also makes it possible to limit the detachment to only the section of the branch cables 300 comprising the branch segment 310b.
  • the contact part can be made of a flexible material 410, for example a polymer or a fabric, electrically insulating and intended to be wound around the main conductor and the secondary conductor.
  • the flexible contact piece is also provided with a metal strip 420 intended to ensure electrical contact between the main conductor and the secondary conductor.
  • the flexible material 410 may also include a slot 430.
  • the contact piece 400 can take the form of mechanical reinforcement ( Figure 9 ) which extends along the contact section 310a.
  • the contact part forms a connector 500 provided with a connecting member 505 which comprises a main part 510 and a secondary part 520 defining, respectively, a main channel 510a and a secondary channel 520a parallel and separated by a central section 540 ( figures 12a and 12b ).
  • the main part 510 and/or the secondary part 520 are of tubular shape.
  • the secondary channel 520a is particularly adapted to accommodate the contact section 310a by partial or total coating of the latter.
  • the main channel 510a advantageously of an extension less than or equal to that of the secondary channel 520a, is adapted to accommodate a section of the main conductor 210, called the main contact section 210a, by partial or total coating of the latter.
  • the connecting member 505 can be in one piece.
  • one-piece connecting member is meant a connecting member formed in one piece.
  • the connecting member 505 can be an assembly of an upper section 506 and a lower section 507 assembled at the level, respectively, of their central section, called, respectively, upper central section 506a and lower central section 507a.
  • the upper section 506 and the lower section 507 are essentially symmetrical to each other with respect to a plane comprising the axes of elongation of the main channel 510a and the secondary channel 520a.
  • each of the upper 506 and lower 507 sections may also be joined.
  • connection means can be housed, before assembly of the upper 506 and lower 507 sections in one or the other of these two sections, and in particular at the level of one or the other of the upper 506a and lower 507a central sections .
  • the connecting member 505 may comprise an electrically conductive material, for example copper or aluminum.
  • the connector 500 may also comprise connection means 600, made of an electrically conductive material, intended to electrically connect the main conductor 210 and the secondary conductor 310 since they are housed, respectively, in the main channel 510a and in the secondary channel 520a.
  • the connecting member 505 may comprise an electrically insulating material, for example a polymer.
  • the electrical connection means 600 may in particular comprise a main contact section 610 and a secondary contact section 620 emerging respectively in the main channel 510a and in the secondary channel 520a, and linked by an intermediate section 630 ( figures 12a, 13, 14 , 15a and 15b ).
  • the electrical connection means may in particular include a fuse function, for example at the level of the intermediate section 630.
  • This fuse function is particularly interesting if the secondary conductors have a much smaller section than the main conductor, that is to say with a much lower current withstand.
  • fuse function we mean a means which melts before the current passing through said means is greater than a threshold. Consequently, connection means which provide a fuse function within the meaning of the present invention, is means which melts before the secondary conductors and the main conductor as soon as the current intensity exceeds a certain threshold.
  • the secondary channel 520a can be arranged to accommodate a secondary conductor 310 adapted to circulate a current lower than a predetermined current, and the connection means, in order to ensure the fuse function can be adapted to melt as soon as when the current passing through them exceeds the predetermined current by 40%.
  • the intermediate section 630 can pass through the central section 540 at the level of a communicating passage 540a between the main channel 510a and the secondary channel 520a ( figure 12a ).
  • the communicating passage 540a can advantageously be opened along one end of the central section 540.
  • the mounting of the electrical connection means 600 in the connecting member 505 can be carried out by sliding in the longitudinal direction of said connector 500.
  • the main contact section 610 and the secondary contact section 620 can each form a protuberance of elongated shape ( figure 12a ) or nipple-shaped, or pointed ( Figure 9 ).
  • the main contact section 610 and/or the secondary contact section 620 may have a complementary shape, respectively, to the surface defining the main channel 510, and the surface defining the secondary channel 520 ( figures 13 and 14 ).
  • the intermediate section 630 may include a clip 630a ensuring the function of maintaining the electrical connection means at the level of the central section 540.
  • main contact section 610 and the secondary contact section 620 relating to the first embodiment can also be implemented within the framework of this second embodiment.
  • the electrical connection means 600 may comprise a screw 601, in particular a headless screw.
  • the screw 601 can in particular be screwed at the level of a drilling 602 made in the central section 540.
  • the drilling 602 is in particular arranged so as to present a light in each of the two main channels 510a and secondary 520a.
  • the drilling 602 has two lateral openings opening onto each of the main 510a and secondary 520a channels, revealing the thread of the screw 601.
  • the thread of the screw 601 is intended to ensure contact electrical with the contact section 310a and with the main contact section 210a.
  • This embodiment is also particularly advantageous because the thread of the screw 601 allows the tightening of the main contact section 210a in the main channel 510a and the contact section 310a in the secondary channel 520a.
  • the main channel 510a can include a side slot over its entire length, so as to allow inserting the main contact section 210a into the main channel 510a by clipping ( figures 12a, 12b and 13 ).
  • the secondary channel 520a may comprise a lateral slot over its entire length, so as to allow the insertion of the contact section 310a into the secondary channel 310a by clipping ( figures 12a, 12b and 13 ).
  • the secondary channel 520a comprises a stop, called secondary stop 521, intended to prevent the complete crossing of the secondary channel by a secondary conductor.
  • the secondary stop separates the secondary channel into a first volume 522a, and a second volume 522b, the secondary contact section 520b emerging in the first volume 522a.
  • the connector 500 can advantageously be used to maintain two secondary conductors 310, called respectively upstream conductor and downstream conductor, successive in a row of branch cables 300. More particularly, the contact section 310a of the downstream conductor can be inserted into the first volume 522a so as to be in electrical contact with the main conductor 210 at the connector considered, while the end of the branch segment 310b of the upstream conductor is inserted in the second volume 522b. Also, it is understood that according to this configuration the secondary contact section emerges only in the first volume.
  • the stop makes it possible to isolate the downstream conductor from the upstream conductor, and in particular any electrical contact between said downstream and upstream conductor within the connector 500.
  • this secondary stop allows each secondary conductor 310 to be maintained at its ends in the connector. This aspect is particularly advantageous when the process implemented for the manufacture of a multi-strand cable involves an extrusion step as described in the rest of the statement and in relation to the figures 20a to 23 .
  • the secondary stop 521 can take the form of at least one plug obstructing the passage in the secondary channel 510a ( figure 17a ).
  • the secondary stop 521 can, according to a second alternative, take the form of two plugs providing an intermediate volume 522c between the first volume 522a and the second volume 522b ( figure 17b ). A cut at this intermediate volume 522c to initiate the detachment of the branch segment 310b does not call into question the electrical insulation of the upstream and downstream conductors.
  • the secondary part is of tubular shape, and comprises a contraction zone forming the secondary stop 521.
  • the contraction zone forms, in the same way as the two stoppers of the second alternative, an intermediate volume 522c interposing between the first volume 522a and the second volume 522b ( figure 17c ).
  • This third alternative is particularly advantageous insofar as the contraction zone is the site of a mechanical weakness likely to facilitate the detachment of a branch cable.
  • the contraction zone can advantageously be matched with a pre-weakened termination 330 of the multi-conductor electrical cable so as to facilitate the detachment of the branch cable 300.
  • the connector 500 can be provided with anchoring means 523 intended to maintain the secondary conductor 310 in a locking position.
  • the anchoring means 523 prevent, when detaching a branch cable 300, the separation of the secondary conductor 310 from the multi-conductor electrical cable 100.
  • the anchoring means 523 may in particular comprise projecting elements 523a intended to scratch the secondary conductor.
  • the protruding elements 523a can be arranged on the internal surface of the secondary channel 520a ( figures 18a and 18b ). Alternatively, illustrated in figure 19 , the protruding elements can be arranged on a ring 529 of complementary shape to the secondary channel 520a and inserted in said channel.
  • the anchoring means 523 can form an integral part of the electrical connection means 600 and in particular be arranged on a secondary contact section 620.
  • the main channel 510a may comprise, on its internal surface, protuberances, called main protuberances 524, intended to guide the main conductor 210 ( figure 20a ).
  • the figure 21a represents the assembly of secondary conductors 310 with connectors 500, and in particular connectors therefore the secondary channel 520a is provided with a secondary stop 521.
  • This step is then followed by mounting the main conductor 210 in the main channels 510a of the connectors 500 ( figure 21b ).
  • THE figures 22a to 22c and 23 illustrate the detachment of a branch cable 300 from the multi-conductor electrical cable 100.
  • the figures 22a and 22b represent the cutout of the termination 330.
  • the termination may be pre-weakened, and according to this condition, a simple tearing force must be sufficient to initiate the detachment of the branch cable. Otherwise, for example in the presence of a core common to all the secondary conductors or in the presence of a connector 500 provided with a contraction zone separating the first volume and the second volume, it may be required to cut the termination 330 using cutting pliers 800 as illustrated in Figure 23 .
  • the cutting is then followed by detachment of the branch cable 300 according to the insulation section 110 ( figure 22c ).
  • the cutting is naturally stopped at the 500 connector which offers greater resistance to tearing.
  • the present invention also relates to an assembly of multi-conductor electrical cables 100 ( Figure 10 ).
  • the assembly notably comprises a plurality of multi-conductor electrical cables 100 comprising a common coating sheath, and electrically isolated from each other by said common sheath.
  • the assembly can be flat ( figure 11a ) or star ( figure 11b ).
  • the multi-conductor electrical cable and/or the assembly devoid of ramifications and of relatively constant section, can advantageously be used to establish electrical connections in restricted spaces.
  • a multi-strand cable according to the invention can be produced according to one or more of the following implementation modes.
  • the insulation section is adapted to be partly cut, advantageously according to the extension length of the cable, so as to release a portion of said branch cable while preserving the insulation by the covering sheath of the branch cable considered.
  • the isolation section comprises a zone of mechanical weakness adapted to allow cutting by tearing, the isolation section advantageously comprises a thinning in the zone of mechanical weakness.
  • each branch cable comprises in its extension a termination, devoid of secondary conductor, advantageously, the cutting of the insulation section is initiated as soon as a tearing force is exerted on the termination.
  • the termination is arranged in the extension of the branch segment.
  • the contact section is at one end of the secondary conductor considered.
  • the branch cables are regularly distributed along the main cable.
  • the branch cables are all of the same length.
  • the branch cables form at least one row of branch cables arranged in continuity with each other.
  • each secondary conductor comprises an electrically insulating core around which is arranged a conductive material extending over the length of the secondary conductor, advantageously, the conductive material comprises conductors braided or twisted around the core .
  • the secondary conductors of the branch cables are arranged in a row and comprise a common core, advantageously, the common core is intended to be cut when detaching a branch cable, even more advantageously, the common core is intended to be cut when detaching said cable in the extension of the secondary conductor of the branch cable considered.
  • the contact between a contact section and the main conductor is a direct contact.
  • direct contact is obtained by tightening the contact section against the main conductor, or for contact between metal strands emerging from the contact section and the main conductor, by fusion between the contact section and the main conductor.
  • the contact between a contact section and the main conductor is an indirect contact.
  • the contact between the contact section and the main conductor is made through a part, called a contact part.
  • the contact part is electrically conductive and is a metal strip coating the contact section and the main conductor at said contact section.
  • the invention also relates to an assembly comprising a plurality of multi-conductor electrical cables, according to the present invention, arranged parallel to each other, the coating sheath being common to each of the multi-conductor electrical cables.
  • main conductor and/or the secondary conductor can be formed from a multi-strand conductor, the strands being for example parallel, twisted or braided...
  • the section of the conductors or strands can be round, oval, rectangular , square or any other.
  • a multi-conductor electrical cable according to the present invention is also advantageously used for electrical distribution, in particular for external networks requiring waterproof connections at a reasonable cost and/or difficulty.
  • These cables can also be used for the electrical connection of solar panels and wind turbines.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Insulated Conductors (AREA)

Claims (13)

  1. Verbindungsstück (500), das aus einem elektrisch isolierenden Material hergestellt und dazu bestimmt ist, einen Hauptleiter (210) und einen sekundären Leiter (310) elektrisch zu verbinden, wobei das Verbindungsstück (500) ein Verbindungselement (505) umfasst, das Folgendes umfasst:
    • einen Mittelabschnitt (540), der sich entlang einer Längsrichtung erstreckt;
    • einen Hauptteil (510) und einen sekundären Teil (520), die einen Hauptkanal (510a) bzw. einen sekundären Kanal (520a) definieren, die parallel zur Längsrichtung verlaufen und durch den Mittelabschnitt (540) getrennt sind;
    wobei das Verbindungsstück (500) elektrische Verbindungsmittel (600) umfasst, die aus einem elektrisch leitenden Material hergestellt und dazu bestimmt sind, den Hauptleiter (210) und den sekundären Leiter (310) elektrisch zu verbinden, sobald sie in den Hauptkanal (510a) bzw. in den sekundären Kanal (520a) eingeführt werden,
    wobei der sekundäre Kanal (520a) einen isolierenden Anschlag, der als sekundärer Anschlag (521) bezeichnet wird, umfasst, der dazu bestimmt ist, zu verhindern, dass ein sekundärer Leiter (310) vollständig durch den sekundären Kanal (520a) verläuft,
    wobei die elektrischen Verbindungsmittel (600) einen Hauptkontaktabschnitt (610) und einen sekundären Kontaktabschnitt (620) umfassen, die in den Hauptkanal (510a) bzw. in den sekundären Kanal (520a) münden und durch einen Zwischenabschnitt (630) miteinander verbunden sind,
    dadurch gekennzeichnet, dass:
    - der sekundäre Anschlag (521) das Volumen des sekundären Kanals (520a) in ein erstes Volumen (522a) und ein zweites Volumen (522b) trennt, wobei der sekundäre Kontaktabschnitt (620) nur in dem einen oder dem anderen des ersten und des zweiten Volumens mündet.
  2. Verbindungsstück (500) nach Anspruch 1, wobei der Mittelabschnitt (540) auf Höhe eines Verbindungsdurchgangs (540a) zwischen dem Hauptkanal (510a) und dem sekundären Kanal (520a) von dem Zwischenabschnitt (630) durchquert wird, wobei noch vorteilhafter der Verbindungsdurchgang (540a) auch an einem Ende des Mittelabschnitts (540) derart offen ist, dass der Zusammenbau der elektrischen Verbindungsmittel (600) und des Verbindungselements (505) durch das Verschieben in der Längsrichtung ermöglicht wird.
  3. Verbindungsstück (500) nach Anspruch 2, wobei der Hauptkontaktabschnitt (610) und der sekundäre Kontaktabschnitt (620) jeweils einen länglichen oder zapfenförmigen oder spitzen Vorsprung bilden.
  4. Verbindungsstück (500) nach Anspruch 2, wobei der Hauptkontaktabschnitt (610) und/oder der sekundäre Kontaktabschnitt (620) eine Form aufweisen, die zu der den Hauptkanal (510a) definierenden Oberfläche bzw. der den sekundären Kanal (520a) definierenden Oberfläche komplementär ist.
  5. Verbindungsstück (500) nach Anspruch 2, wobei der Zwischenabschnitt (630) einen Clip umfasst, der die Funktion gewährleistet, dass die elektrischen Verbindungsmittel (600) am Mittelabschnitt (540) gehalten werden.
  6. Verbindungsstück (500) nach Anspruch 1, wobei die elektrischen Verbindungsmittel (600) eine Schraube (601), insbesondere einen Gewindestift (601), umfassen, wobei das Verbindungselement (505) vorteilhafterweise eine Bohrung (602) im Mittelabschnitt (540) umfasst, die derart angeordnet ist, dass das Schraubgewinde der Schraube (601) in den Hauptkanal und den sekundären Kanal mündet und das Festziehen des Hauptleiters (210) bzw. des sekundären Leiters (310) ermöglicht wird.
  7. Verbindungsstück (500) nach einem der Ansprüche 1 bis 6, wobei der Hauptkanal (510a) und/oder der sekundäre Kanal (520a) über seine gesamte Länge einen seitlichen Schlitz aufweist.
  8. Verbindungsstück (500) nach einem der Ansprüche 1 bis 7, wobei der sekundäre Teil (520) rohrförmig ist und eine Kontraktionszone umfasst, die den sekundären Anschlag (521) bildet, wobei der Hauptteil (510) vorteilhafterweise rohrförmig ist.
  9. Verbindungsstück (500) nach einem der Ansprüche 1 bis 8, wobei der sekundäre Kanal (520a) mit Verankerungsmitteln (523) versehen ist, die dazu bestimmt sind, den sekundären Leiter (310) in einer verriegelten Position zu halten, wobei die Verankerungsmittel (523) vorteilhafterweise vorstehende Elemente (523a) umfassen, die dazu bestimmt sind, den sekundären Leiter (310) zu greifen.
  10. Verbindungsstück (500) nach einem der Ansprüche 1 bis 9, wobei das Verbindungselement (505) einstückig ist.
  11. Verbindungsstück (500) nach einem der Ansprüche 1 bis 10, wobei das Verbindungselement (505) eine Anordnung aus einem oberen Abschnitt (506) und einem unteren Abschnitt (507) ist, die an ihrem Mittelabschnitt zusammengebaut sind und als oberer Mittelabschnitt (506a) bzw. unterer Mittelabschnitt (507a) bezeichnet werden, wobei der obere Abschnitt (506) und der untere Abschnitt (507) vorteilhafterweise im Wesentlichen symmetrisch zueinander in Bezug auf eine Ebene sind, die die Längsachsen des Hauptkanals (501a) und des sekundären Kanals (520a) umfasst.
  12. Verbindungsstück (500) nach einem der Ansprüche 1 bis 11, wobei die Verbindungsmittel eine Sicherungsfunktion beinhalten.
  13. Mehradriges Kabel (100), das sich über eine Länge erstreckt, die als Hauptlänge Lp bezeichnet wird, und Folgendes umfasst:
    - ein Hauptkabel (200), das sich über die Hauptlänge Lp erstreckt, und Stichkabel (300), die entlang des Hauptkabels (200) verteilt sind,
    - ein Verbindungsstück (500) nach einem der Ansprüche 1 bis 12,
    wobei das Hauptkabel (200) einen Hauptleiter (210) umfasst, der von einer Ummantelungshülle (220) umgeben ist,
    jedes Stichkabel (300) einen sekundären Leiter (310) umfasst, der in der Ummantelungshülle (220) eingebettet ist und über seine gesamte Länge am Hauptkabel (200) befestigt und vorteilhafterweise parallel zu diesem gehalten wird,
    jeder sekundäre Leiter (310) mit einem mit dem Hauptleiter (210) verbundenen Kontaktsegment (310a) und einem Abzweigungssegment (310b) versehen ist, wobei das Abzweigungssegment (310b) vom Hauptleiter (210) durch einen Abschnitt der Ummantelungshülle (220), der als Isolierabschnitt (110) bezeichnet wird, isoliert ist,
    wobei die elektrische Verbindung zwischen dem Hauptleiter (210) und dem Kontaktsegment mit Hilfe des Verbindungsstücks (500) nach einem der Ansprüche 1 bis 12 erfolgt.
EP19199105.8A 2018-10-02 2019-09-24 Anschluss Active EP3633794B1 (de)

Applications Claiming Priority (1)

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FR3086808A1 (fr) 2020-04-03
US20200106199A1 (en) 2020-04-02
US10957996B2 (en) 2021-03-23
FR3086808B1 (fr) 2021-10-08
EP3633794A1 (de) 2020-04-08

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