FR2772994A1 - FEMALE ELECTRIC CONTACT MEMBER - Google Patents

Abstract

Female electrical contact member of the type comprising a body (1) with a first pair of crimping tabs (2), a second pair of crimping tabs (3), at the other end, a socket (20) open at its free end for the passage of a male electrical contact element, a ring (10) housed in the socket (20) and made of a material which is a good conductor of electricity and shaped to present an elastic clamp, said ring (10) being integral with one of the ends of a flexible braid (7), the other end of which is fixed to the body (1) by tongues (4), said member being characterized in that the body (1) is made of a material such as steel and having good mechanical qualities, while its part comprising the tongues (4) and the second pair of crimping tabs (3) is coated, on its internal face, with a layer of a material (30) different from that of the body (1) and having qualities of electrical conductivity superior to cell es of said body (1).

Description

The present invention relates to an electrical contact member

female.

  The invention relates, more particularly, to a female electrical contact member of the type comprising a body with, at one end, means for its attachment to an electrical conductor and, at the other end, a member for receiving an element male of additional electrical contact, the body having a socket open10 at its free end for the passage of the male element, while the receiving member of the latter comprises a ring extended towards the means of attachment to an electric conductor , by elastic tongues intended to grip said male element, said ring being mounted floating and sliding in the sleeve and being connected by a flexible connection to the body, means being provided

  to limit the sliding of the ring in the socket.

  Such a female electrical contact member

  is described in French application no. 97.00109 filed on January 8, 1997 in the name of the plaintiff.

  In this type of female organ, the socket has, cut out, retaining tabs which allow

  attempt to fix and block it in a channel of an insulating housing element.

  The socket must therefore have significant mechanical qualities if we want the retaining tabs to be effective, which leads to making it out of stainless steel, but the latter has poor qualities of electrical conduction so that has devised to make an electrical contact member in two parts, that is to say a first part comprising the socket, the latter being fixed to a second part comprising the fixing tabs of the electrical conductor, this second part being

  connected to the flexible connection and thus being, by the ring, made of a copper alloy which is a good conductor of the electri-

  cited. Such an organ has the advantage of being perfectly

  rigid over its entire length but has the disadvantage of being expensive.

  One of the aims of the present invention is to produce a female electrical contact member of the

  above type which is much less expensive than that of the prior art.

  The female electrical contact member according to the invention is of the type comprising a body with, at a

  end, a pair of crimping lugs for fixing

  tion of an electrical conductor housed in an insulating sheath

  te, a second pair of tabs for crimping one end of the previously stripped conductor and, at the other end, a socket open at its free end for the passage of a male electrical contact element, a ring housed in the sleeve and made of a material which is good conductor of electricity and shaped to present an elastic clamp intended to enclose the male element therein, said ring being secured to one end of a flexible braid which is good conductor of electricity, the l the other end is fixed to the body by tongues cut in the latter in the vicinity of the second pair of crimping lugs, said female electrical contact member being characterized in that the body is made of a material such as steel and having good mechanical qualities, while its part comprising the tongues and the second pair of crimping lugs, is coated on its internal face with a c ouche of a material different from that of the body and having qualities of

  electrical conductivity higher than that of said body.

  Thanks to this arrangement, it is possible to realize

  the body in a single piece of stainless steel, which simplifies

  relies on tooling and manufacturing and provides

  a female organ at an acceptable cost price.

  The invention will now be described in more detail with reference to a particular embodiment given by way of example only and shown in the accompanying drawings, in which: Figure 1 is a sectional view along the line

1-1 of figure 2.

  Figure 2 is a sectional view along the line

2-2 of figure 1.

  The female electrical contact member represents

  tee in the figures comprises a body 1 made of stainless steel and shaped to present, at one end, a first pair of lugs 2 intended for crimping an electrical conductor housed in an insulating sheath and a second pair of lugs 3 intended for crimping the end

stripped of said conductor.

  In the vicinity of the tabs 3 is made a puncture 6 so as to form a bearing surface 6a, while to the right of the puncture are cut two tabs 4 intended to be folded against the bearing surface 6a in order to ensure fixing from one end of a flexible braid 7 which is a good conductor of electricity, the other end of which is fixed to a ring 10 by lugs 11. The ring 10 is made of a copper alloy which is a good conductor of electricity and is shaped to have an opening 12 for introducing a male member with an elastic clamp having two tongues 16 and two bands 15 which form a bend 15a so also

to enclose a male organ.

  The body, on the side opposite the crimp tabs

  ge 2 and 3, is extended by a socket 20 in which are cut two retaining bars 21 and two folds 22. The bars 21 are intended to ensure the blocking of the contact member in a channel of a housing element

  of a connector, while the folds 22 form des5 shoulders to cooperate with a locking key.

  At the free end of the socket 20, it can

  be provided with keying devices 23.

  The free end of the sleeve 20 has an opening 25 for the passage of the male element.

  In the sleeve 20 are made two openings 26 whose edges, located towards the tabs 3, form

  internal bosses in order to constitute stops 17 for folds 14 of the ring 10 in order to limit the sliding

  sement of the latter in the socket 20.

  According to the invention, the part of the body 1 comprising the bars 4 and the crimping lugs 3 are coated. On these parts is arranged a layer of a material whose qualities of electrical conductivity are superior to those of the material from which said body is made 1. Thus, an electrical continuity is produced which extends from the ring 10 to legs 3, all the elements between these two parts

  being good conductors of electricity.

  Of course, the invention is not limited to the embodiment which has just been described and shown. We can make many modifications

  detail without departing from the scope of the invention.

Claims (1)

R E V E N D I C A T I O N   Female electrical contact member of the type comprising a body (1) with, at one end, a pair of crimping lugs (2) for fixing a conductor   electric housed in an insulating sheath, a second pair of lugs (3) for crimping one end of the conductor   tor previously stripped and, at the other end, a socket (20) open at its free end for the passage 10 of a male electrical contact element, a ring (10) housed in the socket (20) and made of a material good conductor of electricity and shaped to present an elastic clamp intended to grip the male element, said ring (10) being integral with one of the ends15 of a flexible braid (7) good conductor of electricity the other end of which is fixed to the body (1) by tabs (4) cut from the latter in the vicinity of the second pair of crimping lugs (3), said female electrical contact member being characterized in that the body ( 1) is made of a material such as steel and having good mechanical qualities, while its part comprising the tongues (4) and the second pair of crimping lugs (3) is coated, on its internal face, with '' a layer of a material (30) 25 different from that of the body (1) and having qualities of electrical conductivity superior to those of said body (1).