FR2679384A1 - CONNECTION ELEMENT OF AN ELECTRIC BEAM WITH AN ELECTRICAL CONDUCTOR INCORPORATED IN AN INSULATING SURFACE. - Google Patents

Abstract

This connection element of an electrical bundle with an electrical conductor (11) incorporated in an insulating surface (8), consists of two parts: - a male part, constituted by a conductive strip (1), connected to the electrical conductor ( 11) at the level of said surface (8), and emerging at the level of the lateral section (12) of the latter, this strip (1) comprising an electrical tab (2) intended to play the role of male connection, - a part female, constituted by an electrical connection (9) intended to cooperate with said male tongue (2), covered by means of an insulating material in the form of a clamp (3), intended to be clipped onto said surface (8) at the level of said strip (1) of the male part.

Description

i

  ELENT FOR CONNECTING AN ELECTRICAL BEAM WITH A

  INCOFRPORE EIBCTRIQUE CONDUCTOR IN AN INSULATING SURFACE

  The invention relates to a new connection element intended to provide the electrical connection between a

  Cement connected to a power source and a conductive element embedded or included in a surface, including a flat surface such as a windshield.

  With regard to automotive windshields, it has been known for a long time the principle of drowning or including an electrically conductive electric wire, between the two main constituent layers of the windshield Ce15 electrical conductor is resistive, in order to induce During the passage of the current a temperature rise by simple Joule effect In this way, the temperature of the windshield increases, either to eliminate the fogging of the internal surface of the windshield, or to defrost the outer surface 20 The electric conductor having a certain resistance, has a very large diameter

  It is so weak that it is invisible through the windshield. It comprises, in known manner, two terminals, one terminal connected to the ground and the other connected to the electrical power supply.

  The actual connection is made at the edge of the windshield by means of a slat,

  about one-tenth of a millimeter thick, made for example of tin-plated copper. This lamella, partly enclosed between the two constituent layers of the shield,

  The free end can advantageously be pre-formed into a cylindrical shape in order to receive the electric wire.

  appropriate This one, coming from the bundle of

  tion, is fixed by crimping or welding.

  It is not uncommon, when setting up the wire

  electrical system and its fixation, to observe breakage of the tongue, thus inducing the loss of

  breeze, this becoming unfit for heating given the absence of a power supply lug.

  In addition, this implementation is time consuming and labor Finally, this type of connection is not reliable over time.10 In this way, this solution is not satisfactory or technically, neither economically,

  especially from the point of view of profitability.

  The invention aims to overcome these various disadvantages. It proposes a connection element for

  such heated windshields, but also for any insulating surface incorporating an electrical conductor. This element consists of two parts: a male part consisting of a lamella

  ductrice, connected to the electrical conductor at said surface, and emerging at its side edge, this lamella having an electrical tongue intended to act as a male connection, a female part constituted by an electrical connection intended to cooperate with the male tab described above, covered by means of a

  insulating material according to a form of clip,

  born to clip on the said surface

  calf of said lamella of the male part.

  In other words, the invention consists in realizing

  a connection element intended to enable the branch

  one-step connection in a simple way.

  fast and above all reliably, the maintenance of the connection being ensured on the one hand by the close cooperation between the male electrical part and the female electrical part of said element, and on the other hand between the clamp made of insulating material of the female part and the surface, in particular the windshield comprising the element

electrical conductor.

  According to an advantageous form of the invention, the

  insulating material is overmolded on the female connection.

  According to a first embodiment of the invention, the overmolding piece made of insulating material is

  In other words, the female part of the connection element is overmolded in its entirety by means of an insulating material, in a suitable form.

  In another embodiment, the overmolding piece is in fact made up of two members: a first member called "clip" overmolding the electrical connection of the female part, extended by the

  power supply beam, and a second member, constituting the actual clip, at one of the ends of which

  the, the clip may be inserted, said clip having at its central zone a slot intended to allow

  the passage of the male tongue, so that it comes to be housed in the female connection, said clamp being fixed by its other end to the surface 30 comprising the electrical conductor.

  The way in which the invention can be realized and the benefits derived from it will emerge more clearly from

  the exemplary embodiment which follows given indica-35 tif and not restrictive in support of the appended figures.

  FIG. 1 is a schematic perspective representation of the male tongue in accordance with the invention.

  tion. Figure 2 is a schematic perspective representation of one of the elements of the female part.

  Figure 3 is another schematic representation of the element of the female part.

  Figure 4 is a cross sectional view of the connection element in place on a windshield.

  Figure 5 is similar to Figure 4, in a longitudinal section.

  Although more particularly described in connection with a windshield, it goes without saying that the invention is not

  not limited to this single application.

  According to the invention, the electric connection element for a heated windscreen is intended to allow the electrical connection at the level of a thin wire (11), for example tungsten, positioned or embedded between the two layers, usually made of glass or polymethacrylate

  methyl, constitutive of a windshield.

  This element firstly comprises a first male part, bearing the reference (1), constituted by a strip made of tinned copper of 0.15 millimeter

  This slat is intended to be inserted between the two layers of glass (8) at the level of the lower edge (12) of the windshield, that is to say in the immediate vicinity of the dashboard, and this for reasons of convenience of routing the electric beam

  Indeed, it goes without saying that it can be positioned at any of the side edges of the windshield.

  This male part comprises in addition to the blade (1) a male tongue proper (2), reported on the

  lamella (1) by any means and in particular by welding, and protruding from the plane defined by the latter.

  This tongue (2), rigid, is for example made of tinned brass, and has a characteristic thickness.

  It is obvious that without departing from the spirit of the invention, this male part could be monobloc, and made in one piece by molding or by machining.15 According to the invention, the part The female of this connection is constituted by a metal lug itself (9), connected to the electric harness (7), overmolded by means of an insulating material, typically PVC. In fact, this molded lug (9) constitutes what classically called a "right clip" or "clip"

  flag ", depending on whether the electrical wire that comes from is aligned or forms a right angle with said lug.

  In a first embodiment of the invention, this clip (6) itself is overmolded with an element

  additional (3), also made of insulating material, and typically forming a clamp at one of its ends (4) This clamp (3) is intended to be fixed to the lower edge of the windshield at the level of the male lamella (1).

  More precisely, and as can better be seen in FIGS. 4 and 5, when the female part is in place, the male tongue (2) is inserted into the female lug (9) after passing through a window

  narrow (10) formed in the clamp (3).

  In this way, the maintenance of the connection is ensured on the one hand by the firm and close cooperation of the

  male tongue (2) with the female lug (9), and secondly, by the cooperation between the clamp and the edge of the windshield (8).

  In this first embodiment, the assembly constituted by the clip (6) and the clip (3) is mono-

  block, it is made during manufacture by simple10 overmolding.

  In another embodiment, as shown in FIGS. 2 and 3, the female part

  consists of two independent parts respectively-15 ment clip (3) and the clip (6).

  Thus, the total element is made by inserting the front end of the clip (6) in an opening (5) formed at the rear portion of the clip (3), the outer dimensions of the clip and internal of the said opening (5) being such that the clip (6) must be inserted by applying a certain pressure, allowing it to be held by the clamp (3). In fact, it can be positioned immediately after completion. the windshield and placing the male slats, so that the electrical connection properly

  said only consists in inserting said clips in the openings (5) of the clamps (3).

  In either case, we perceive the great simplicity of setting up the bundles of conne-

  windshield, and in general, at the level of any flat surface incorporating an electrical element In addition, it should be emphasized, that there is no longer any risk of rupture of the male part, the latter

  being stiffened by the tongue (2), and further protected by the clip (3).

  In this way, it is conceivable that the actual connection of the heated windshields but also of all types of connection to be made at a flat surface requires only a simple gesture very simple to achieve, o a gain appreciable time and an eco-friendly

  a great deal of manpower.

Claims (3)

  1 / element for connecting an electrical harness with an electrical conductor (11) incorporated in an insulating surface (8), characterized in that it consists of two parts:   a male part consisting of a lamella   ductrice (1), connected to the electrical conductor   (11) at said surface (8), and emerges   at the side edge (12) of the latter, this strip (1) comprising an electrical tongue (2) intended to act as a male connection, a female part constituted by an electrical connection (9) intended to cooperate with said male tongue (2), covered by means of an insulating material in the form of a clip (3), intended to clip on said surface (8) at said lamella (1) of the part male.   2 / connection element according to claim 1, characterized in that the insulating material is overmolded on the female connection (9) .25 3 / connection element according to claim 2, characterized in that the overmolding piece (3.6 ) in insulating material is monobloc.   4 / connection element according to claim 2, characterized in that the overmolding part of the par-   The female part consists of two members: a first member (6) overmoulding the connection   (9), and extended by the power beam   electrical connection, and a second member, constituting the clamp (3) itself, at one of the ends (5) of which, the first member (6) is inserted, said clamp comprising at its central zone a slot (10) 5 intended to allow the passage of the male tongue (2), so that it comes to be housed in the female connection (9), said clamp (3) being fixed by its   another end (4) on the surface (8).