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
  • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
  • H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
• • 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
  • H01R13/10—Sockets for co-operation with pins or blades
  • H01R13/11—Resilient sockets

Definitions

• a known female electrical contact of the monobloc type with protective cage is described, for example, in document EP 0 310 487.
• This monobloc contact is formed from a single metal flank and comprises two contact blades folded from elements of ceiling of the cage, along axes parallel to the main axis of contact, in a 180 ° fold, the blades. thus comprising connection parts to the ceiling element conforming to the internal profile of the cage at the level of the 'ceiling element and side walls of the cage.
• shutters for prestressing the elastic contact blades and for guiding the complementary male contact are produced by folding from the front of the side walls of the cage.
• This contact provides very good protection of the contact blades and high rigidity of the cage but requires a large metal strip width for its production.
• An embodiment subsequent to patent EP 0 310 48 * 7 is also described in the document FR 2 751 793.
• This embodiment is built in a longitudinal direction from a single flank, and comprises in the extension of the floor in front of the blades a structure which once folded along an axis perpendicular to the longitudinal axis of the contact forms a front wall, this front wall being pierced to form a frame provided with pre-stressing flaps of the contact blades and extended by cage elements for protecting contact blades with bearing zones for locking pins coming from the housing.
• the invention provides a female electrical contact cut in one piece folded comprising longitudinally a rear zone of connection to an electrical conductor, a protective cage comprising a floor two lateral walls adjoining the floor and folded along a longitudinal axis and at least one ceiling element, the electrical contact comprising on the front a contact termination with a complementary male contact located in the cage, the contact termination consisting of at least one elastic contact blade provided with an end portion directed towards the front of the contact, contact for which this elastic contact blade is produced from a strip connected to the rear of the ceiling element extending before folding backwards and extending after folding forward and perpendicular to the floor.
• the folding of the strip forming the blade comprises a twist.
• this contact blade may comprise, at its connection to the ceiling element, a first fold along an axis perpendicular to the longitudinal axis of the contact, a first section deviating from the ceiling element, a second ply at an angle producing a second section and a third fold defining the rear part of an elastic section connected to a convex contact section with a complementary contact.
• a contact according to the invention will comprise at least a pair of blades and a pair of ceiling elements, each of the blades of the pair of blades being connected to a ceiling element of the pair of ceiling elements.
• the flap may include anchoring studs, the floor and the roof element comprising holes for receiving these studs.
• Figure 7 A perspective view of a contact according to the invention partially unfolded.
• the female electrical contact 1 visible for example in FIG. 2 is of the cut-out folded monobloc type comprising longitudinally a rear zone 2 for connection to an electrical conductor.
• connection such as insulation displacement termination or solder pin
• the area shown here is of the crimp type with wings 50, 51 crimping on a stripped termination of a conductor and wings 52, 53 of crimping on the conductor insulation.
• the contact shown in FIGS. 2 or 4 comprises a protective cage 3 comprising the floor 4, two side walls 5, 6, a contact termination with a male contact complementary located on the front and inside the cage, the contact termination being constituted in one example shown for example in Figure 6 by two elastic contact blades 8, 9 each being provided an end portion 10, 11 directed towards the front of the contact.
• the contact is made from a single side as shown in Figures 1 and 3 and for which the side walls 5 and 6 are laterally adjoining extensions to the floor, along an axis transverse to the contact.
• the extensions are folded along an axis parallel to the longitudinal axis of the contact.
• ceiling elements are folded and connected to these side walls.
• the elastic contact blades are produced from strips connected to the rear of the ceiling elements and extending before folding towards the rear of the contact parallel to the floor. This arrangement minimizes the developed surface of the contact, thereby making it possible to minimize the waste of material during cutting and to increase the contact density by reducing the pitch between contacts on the strip.
• the complete folding of the blade from the rear to the front therefore comprises a first fold (45) along an axis perpendicular to the longitudinal axis of the contact which returns the blade towards the front.
• the folding comprises a second oblique fold (47) produced in the diagonal of a first section of the blade, this fold creating a section
• (48) generally triangular situated in a plane perpendicular to the ceiling, this section comprising a free edge possibly finding itself in abutment against the ceiling element.
• the folding of the blade comprises finally a third fold (49) produced at one end of the triangular section along an axis perpendicular to the ceiling so as to constitute the active part of the contact blade, this blade conventionally comprising a first section elastic, a convex zone of contact with a pin or tongue contact complementary and known per se and a free terminal zone.
• the blade or blades have an intermediate section 31 deviating from the lateral face.
• This section forms the elastic part of the blade and will condition the contact pressure with a spindle or complementary pallet contact.
• the contact zone with the complementary contact is made as already seen by a convex section 32 ..
• the contact blade ends towards the front by an end section 11 bearing against a flap 20, 21 folded down from the front of the lateral face to which it is connected.
• This component maintains and pre-stresses the blade so as to clearly define the position of the contact point of the blade with a complementary contact pin.
• a contact provided with two elastic blades facing each other prestressed by a flap there is also definition of a clearance between the convex sections which fixes the minimum thickness of the spindle or of the pallet received between the blades.
• the flaps protect the contact blades and guide the spindle when it is inserted into the cage.
• the latter may have studs 60, 61 intended to be received in holes 62, 63 made in the floor and a ceiling of the cage.
• the means for maintaining the contact in an insulating housing for receiving this contact may comprise at least one window 25 formed on one of the sides of the cage or, as described above, at least one lug 26 produced on one of the sides of the cage.
• the window (s) may be located on the side walls of the cage behind the blades, the lug (s) possibly being located on one or more arbitrary faces of the cage.
• the contact comprises a pair of elastic strips produced symmetrically from the ceiling elements. It is possible in the context of one invention to consider a contact for which the blades split in their elastic part and contact with a complementary pin (31, 32, 11) or to consider a contact for which a blade is made according to this twisting principle, this blade being disposed facing a bearing surface of the spindle formed differently or facing a blade cut in the opposite side wall.

Landscapes

• Engineering & Computer Science (AREA)
• Manufacturing & Machinery (AREA)
• Connector Housings Or Holding Contact Members (AREA)
• Coupling Device And Connection With Printed Circuit (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=8865097

Family Applications (1)

Country Status (6)

Families Citing this family (9)

Family Cites Families (12)

• 2001
  • 2001-06-29 FR FR0108841A patent/FR2826786B1/fr not_active Expired - Fee Related
• 2002
  • 2002-06-28 US US10/482,581 patent/US7059921B2/en not_active Expired - Fee Related
  • 2002-06-28 JP JP2003509589A patent/JP2004531044A/ja active Pending
  • 2002-06-28 WO PCT/EP2002/007188 patent/WO2003003523A1/fr not_active Application Discontinuation
  • 2002-06-28 KR KR10-2003-7002863A patent/KR20040014964A/ko not_active Application Discontinuation
  • 2002-06-28 EP EP02758283A patent/EP1399992A1/fr not_active Withdrawn

Non-Patent Citations (1)

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