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
  • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
  • H01R12/50—Fixed connections
  • H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
  • H01R12/65—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal
  • H01R12/67—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal insulation penetrating terminals
  • H01R12/68—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures characterised by the terminal insulation penetrating terminals comprising deformable portions
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
  • H01R12/50—Fixed connections
  • H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
  • H01R12/63—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures connecting to another shape cable
• • 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
  • H01R4/2495—Insulation penetration combined with permanent deformation of the contact member, e.g. crimping

Definitions

• the present invention relates to an electrical connection element. More specifically, this electrical connection element makes it possible to connect the end of at least one electrical wire having an electrical insulation sheath to a flexible sheet having parallel electric tracks.
• a first solution consists in welding ends of the electrical wires to the tracks of the flexible sheet.
• the welding is extremely delicate and such a connection does not ensure good mechanical strength, for example in the case where sheathed son and the web are stressed.
• a second known solution is to provide the flexible sheet with a male or female connector and to connect the jacketed son at a male or female conjugate electrical connector.
• the present invention aims to provide a less expensive electrical connection element and requiring a reduced number of assembly steps.
• the subject of the invention is an electrical connection element for connecting the end of at least one electrical wire having an electrical insulation sheath to a flexible sheet having parallel electrical tracks, characterized in that it comprises a holding portion having a bottom intended to be in contact with a stripped portion of the electric wire configured to be in direct contact with the sheet flexible, and at least one pin connected to the bottom and for piercing an associated electrical track and to be crimped to provide both an electrical connection and a mechanical holding between the electrical wire and the flexible ply, and a mechanical holding of the stripped portion of the electric wire against the flexible ply.
• the connection element may further comprise one or more of the following features, alone or in combination:
• the holding portion comprises at least one pair of lateral pins
• the pins of each pair are arranged in staggered rows
• the bottom of the holding portion comprises at least one resilient lamella; the lamella is produced by stamping in one piece with the bottom,
• the holding portion comprises two pairs of pins and a pair of crimping tongues of the stripped portion of the electrical wire disposed between the two pairs of pins,
• said connecting element comprises an additional portion of crimping of the sheath, made in one piece with the holding portion, and
• the additional crimping portion has in the unassembled state a U-shaped cross section whose legs are closed during crimping on the sheath of the electric wire.
• the invention also relates to a method of electrically connecting the end of at least one electrical wire having an electrical insulation sheath to a flexible sheet having parallel electrical tracks through a connection element as described above, characterized in that it comprises the following steps:
• An associated electrical track of the web is pierced by at least one pin of the connecting element and - the crimp is folded by crimping in the direction of the flexible sheet.
• This method may further comprise a crimping step of the pair of tongues around the stripped portion of the electrical wire.
• This method may also include a step of crimping the additional crimping portion around the sheath.
• FIG. 1 is a perspective view of a connection element according to a first embodiment
• FIG. 2 is a longitudinal sectional view of a flexible sheet having parallel conductive tracks connected via a connection element of Figure 1 to a sheathed wire,
• FIG. 3 is a perspective view of a connection element according to a second embodiment, the element being connected by crimping to a sheathed wire
• FIG. 4 is a perspective view of a connection element according to FIG. a third embodiment
• FIG. 5 is a longitudinal sectional view of a flexible sheet having parallel conductive tracks connected via a connection element of FIG. 4 to a sheathed wire
• FIG. 6 is a perspective view. a connecting element according to a fourth embodiment, the element being crimped to a sheathed wire.
• the identical elements are identified by the same reference numbers.
• FIG. 1 shows a perspective view of an electrical connection element 1 for connecting the end of at least one electrical wire 3 having an electrical insulation sheath 5 to a flexible sheet 7 having parallel electrical tracks 9.
• FIG. 2 is a longitudinal sectional view of a flexible sheet 7 having parallel conductive tracks 9 connected via a wire-wrapped connection element 3 of FIG. 1.
• the connection element 1 comprises a holding portion 13 having a bottom 15 intended to be in contact with a stripped portion 17 of the electric wire 3 and at least one, preferably one see two pairs of two lateral pins 19 staggered and connected to the bottom 15 and intended to piercing an associated electrical track 9 of the sheet 7 and being crimped to provide both an electrical connection and a mechanical hold between the electrical wire 3 and the flexible sheet 7, and a holding mechanics of the stripped portion 17 against the flexible ply 7.
• the stripped portion 17 is in direct contact with the flexible ply 7.
• connection element 1 which guarantees a good mechanical strength.
• This connecting element 1 may for example be made of stamped bronze sheet or another metal having suitable conduction and resistivity characteristics, and possibly by another method.
• the bottom 15 of the second portion further comprises at least one elastic strip 25 made for example by stamping in one piece with the bottom. This slat contributes to improving the electrical contact and the clamping between the flexible ply 7 and the stripped portion 17 by the connection element 1.
• FIG. 3 A second embodiment is shown in FIG. 3 showing a perspective view of the connecting element 1 connected by crimping to a sheathed wire.
• connection element of this second embodiment differs from the first embodiment illustrated in FIGS. 1 and 2, in that the holding portion 13 comprises two pairs of pins 19 and a pair of crimping tongues 27 of the denuded portion of the electrical wire disposed between the two pairs of pins 19, which improves both the mechanical strength and the electrical conductivity between the sheathed wire 3 and the connection element 1.
• FIGS. 4 and 5 A third embodiment is illustrated by FIGS. 4 and 5, respectively showing a perspective view of the connection element 1 according to this third embodiment and a longitudinal sectional view of the flexible sheet 7 having parallel conductive tracks. connected to a sheathed wire 3 via the connection element 1 according to this third embodiment.
• This third embodiment differs from the first embodiment in that the connecting element 1 comprises in addition to the holding portion 13, a additional portion 11 crimping sheath S.
• This additional crimping portion 11 is made in one piece with the holding portion 13 and makes it possible to reinforce the mechanical holding with the electric wire 3.
• the additional crimping portion 11 has, in the unmounted state (FIG. cross-section U whose branches 21 and 23 are closed during crimping ( Figure 5) on the sheath 5 of the electric wire 3.
• a fourth embodiment is illustrated in Figure 6 having a perspective view of the connecting member 1 connected by crimping to a sheathed wire.
• the connection element of this fourth mode differs from the third embodiment illustrated by FIGS. 4 and 5, in that the holding portion 13 comprises two pairs of pins 19 and a pair of crimping tabs 27 of the stripped portion. electrical wire disposed between the two pairs of pins 19.
• connection between a flexible sheet 7 having parallel electrical tracks and sheathed wires 3 will be simpler and less expensive.
• an associated electric track 9 is pierced. of the ply 7 by the pins 19 of the connecting element 1, then crimping the pins 19 in the direction of the flexible ply 7 so as to obtain both a good mechanical and electrical connection between the wire S and the tablecloth 7.
• a pair of tabs 27 are crimped around the stripped portion 7 of the electrical wire 3.
• the additional crimping portion 11 is first crimped around the sheath 5 before piercing the associated electric track 9 of the ply 7 with the pins 19. of the connection element 1, and crimping the pins 19 in the direction of the flexible ply 7 so as to obtain both a good mechanical and electrical connection between the wire 5 and The tablecloth 7.
• the ends of the electrical wires 3 will be introduced with their sheaths S and their stripped ends 17 to be received in the corresponding connection elements 1.
• the web 7 is introduced so that the tracks 9 are placed above the pins 19 of the corresponding connecting elements.
• connection element is further provided, for example laterally ratching protuberances, adapted to cooperate with housings conform for example a housing, such as for example a service housing.
• protuberances could be added for example to the holding portion 13 with regard to the embodiments illustrated in FIGS. 1 to 3, and for example upstream of the additional portion 11 and downstream of the holding portion 13 of the connection element 1 with regard to the embodiments illustrated in FIGS. 4 to 6.
• connection element has a reduced size compared with the connection elements known from the prior art and makes it possible to switch easily from a flexible sheet to sheathed wires to make an electrical connection. of quality without intermediary by direct contact between the electric wire and the flexible ply, while ensuring a good mechanical resistance.

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• Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=40086448

Family Applications (1)

Country Status (3)

Families Citing this family (2)

Family Cites Families (7)

• 2008
  • 2008-09-02 FR FR0804817A patent/FR2935551B1/fr not_active Expired - Fee Related
• 2009
  • 2009-09-02 WO PCT/EP2009/006360 patent/WO2010025907A1/fr active Application Filing
  • 2009-09-02 EP EP09811077A patent/EP2332216A1/de not_active Withdrawn

Non-Patent Citations (1)

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