CN107004965A - For the electrical connecting element for the insulating sheath for piercing through electric wire - Google Patents

Abstract

The present invention relates to the first gap (11) and the second gap (21) that electrical connecting element described in a kind of electrical connecting element (10) for piercing through insulating sheath includes being used to insert at least one insulated electric conductor thereto, each gap is by two edge (11A facing with each other；11B；21A；21B) limit, wherein at least one edge is two parts (30 that the sharp respective described two edges in the gaps of first and second are belonging respectively to connecting element；40) partly include described in by two edges faced that circular core (30) of outer peripheral portion (40) limits two opposite edges and outer peripheral portion of the edge in first and second gap as core forms described in core in tongue-shaped (30A), the outer peripheral portion is in the form of the substantially U-shaped spring leaf (40A) with bottom (41), two opposite lateral protrusions (42) for surrounding the tongue piece from it rise according to the present invention, it is described two to be partially separated, and be made up of two kinds of different materials of electric conductivity.

Description

Electrical connection elements for piercing the insulating sheath of electric wires

technical field

The present invention generally relates to the field of electrical devices comprising electrical connection elements known as "insulation piercings (penetrations, perforations)" which enable the connection of said devices in an automated manner (without tools) to the supply line provided by the grid.

More specifically, the present invention relates to an electrical connection element for piercing an insulating sheath comprising first and second apertures (slits, slots, cuts) for introducing at least one insulated wire, each aperture being defined by a corresponding Delimited by two facing edges, at least one of which is sharp, said two edges of each of the first and second slits respectively belonging to two parts (parts) of the electrical connection element, said two parts comprising a central portion, which is surrounded (surrounded, surrounded) by a peripheral portion, the edges defining said first and second slits being composed of two opposite (opposite) edges of the central portion and two opposing (opposite) edges of the peripheral portion The facing edges are formed, said central part is in the form of a tongue (shape), said peripheral part is in the form of a spring leaf which is generally U-shaped and has a bottom (base) from which rises a Two opposing lateral wings surrounding the tongue.

The invention also relates to an electrical device comprising such an electrical connection element.

A particularly advantageous application of the invention lies in the production of electrical terminals for power sockets or electrical switches such as simple circuit breakers or toggle switches.

Background technique

Generally, "insulation piercing" electrical connection elements are used to form an electrical connection between an electrical device and an electrical wire comprising a conductive core surrounded by an insulating sheath.

When an electric wire is inserted into the introduction slot of the electrical connection element, the sharp edge of the introduction slot pierces the insulating sheath of the electric wire and contacts the conductive core of the electric wire.

The lead-in slit of the connecting element should therefore be soft enough to allow easy insertion of the wire while maintaining sufficient pressure on the conductive core of the wire to ensure a good formation between the exposed core of the wire and the sharp edges of the lead-in slit of the connecting element. electrical contact, and this facilitates the smallest possible contact resistance and avoids heating.

Furthermore, the connecting element should ensure a good current transmission from the wires that are also connected to the functional electrical elements of the device equipped with the electrical connecting element.

Finally, the connecting element is miniaturized to allow use in smaller spaces.

In particular, such a connecting element is known from document EP1484818 or document US5330367, but it still has the disadvantage that it is made entirely of highly conductive material which is expensive to produce.

Contents of the invention

To overcome the aforementioned disadvantages of the prior art, the present invention proposes a new electrical connection element in which the amount of material with high electrical conductivity is reduced, which makes it particularly economical.

More specifically, according to the invention, an electrical connection element as described in the introductory part is proposed, wherein said two parts of the electrical connection element are distinct (different, differentiated) and are composed of Made of two materials with different conductivity.

The electrical connection element according to the invention thus allows the establishment of a good-quality electrical connection between the conductive thread and the part of the two distinct parts of the connection element made of a material with a higher conductivity, which in It is particularly economical in terms of production.

It also maintains a particularly compact small form factor.

Other non-limiting and advantageous features of the connecting element according to the invention are as follows:

- said sharp edge belongs to the one of said two distinct parts of the electrical connection element which is made of a material with greater electrical conductivity;

- said first and second slots are arranged side by side extending along two distinct longitudinal axes;

- the central part is made of a material that is more electrically conductive than the material from which the peripheral part is made;

- each lateral wing of the peripheral portion comprises a post extending in the direction of a tongue, the free end of each post forming said facing edge of the peripheral portion of the electrical connection element, and the tongue comprising two longitudinal edges , the two longitudinal edges forming said opposite edges of the central portion;

- said tongue comprises a functional branch and a supporting branch, said two longitudinal edges forming said opposite edges of the central part carried exclusively (exclusively, only) by said functional branch, and said tongue is exclusively One is connected (integrated) with the spring leaf at the supporting branch of the tongue;

- for connection with the leaf spring, said supporting branch of the tongue rests against the bottom of said leaf spring;

- for coupling with the leaf spring, said supporting branch of the tongue bears against an additional partition of said leaf spring extending from the bottom of the leaf spring between the two lateral wings;

- for coupling with the leaf spring, said supporting branch of the tongue comprises two lugs (lugs) adapted to remain in cooperation with the two openings of the lateral wings of the leaf spring;

- the lateral wings of the peripheral portion are each adapted to pivot about a pivot axis perpendicular or substantially perpendicular to the longitudinal axis of the respective slot;

- the lateral wings of the peripheral portion are each adapted to pivot about a pivot axis parallel or substantially parallel to the longitudinal axis of the respective slot;

- the two facing edges of each gap are sharp edges;

- one of the two distinct parts of the connecting element is made of a copper-containing alloy and the other of the two distinct parts is made of stainless steel or steel;

- stiffening (stiffening, rigidifying) means provided with connecting elements to prevent the transmission of deformations of one lateral wing of the connecting element to the other lateral wing;

- said stiffening means of the connecting element comprise internal stop elements against which said lateral wings will abut when deformed towards the inside of the connecting element;

- said inner stop element comprises a lateral projection (protrusion) extending from the central portion of the connecting element towards the lateral wings of the peripheral portion; and

- The stiffening means also comprise external stop elements to limit the deformation of each lateral wing of the peripheral portion towards the outside.

The invention also relates to an electrical device comprising an electrical connection element as described above to form a connection terminal for connecting the electrical device to an electrical network.

Advantageously, the tongues of the connection element forming the connection terminal have a form defining a receiving receptacle for receiving an electrical connection pin of another electrical device.

Description of drawings

The description provided as a non-limiting example with reference to the accompanying drawings will better explain what the invention consists of and how it can be practiced.

In the attached picture:

- Figure 1 is a schematic perspective view of a first embodiment of an electrical connection element according to the invention,

- Figure 2 is a schematic front view of the electrical connection element of Figure 1,

- Figure 3 is a schematic bottom view of the electrical connection element of Figure 1,

- Figure 4 is a schematic perspective view of the electrical connection element of Figure 1, on which are arranged the wires ready to be introduced into the element,

- Figure 5 is a schematic perspective view of the connecting element of Figure 4 after connecting the wires,

- FIG. 6 is a schematic front view of the electrical connection element of FIG. 5 , the wires being shown in cross-section taken according to the plane P of FIG. 7 ,

- Figure 7 is a schematic bottom view of the electrical connection element of Figure 5,

- FIG. 8 is a schematic perspective view of the electrical connection element of FIG. 1 on which two electric wires are arranged before being introduced into the element,

- Figure 9 is a schematic perspective view of the electrical connection element of Figure 8 after connecting two electric wires,

- FIG. 10 is a schematic front view of the electrical connection element of FIG. 9 , the wires being shown in cross-section according to plane N of FIG. 11 ,

- Figure 11 is a schematic bottom view of the electrical connection element of Figure 9,

- Figure 12 is a schematic top front perspective view of a second embodiment of an electrical connection element according to the invention,

- Figure 13 is a schematic rear perspective view of the electrical connection element of Figure 12,

- Figure 14 is a schematic bottom front perspective view of the electrical connection element of Figure 12,

- Figure 15 is a schematic top view of the electrical connection element of Figure 12,

- Figure 16 is a schematic front view of the electrical connection element of Figure 12,

- Figure 17 is a schematic front perspective view of a third embodiment of an electrical connection element according to the invention,

- Figure 18 is a schematic bottom perspective view of the electrical connection element of Figure 17,

- Figure 19 is a schematic top view of the electrical connection element of Figure 17,

- Figure 20 is a schematic bottom view of the electrical connection element of Figure 17,

- Figure 21 is a schematic side view of the electrical connection element of Figure 17,

- Figure 22 is a schematic front perspective view of a fourth embodiment of an electrical connection element according to the invention,

- Figure 23 is an exploded schematic view of the elements of Figure 22,

- Figure 24 is a schematic bottom perspective view of the electrical connection element of Figure 22,

- Figure 25 is an exploded schematic view of the electrical connection element of Figure 24, and

- Figure 26 is a schematic front view of the electrical connection element of Figure 22,

- figure 27 is a schematic perspective view of a fifth embodiment of a connecting element according to the invention,

- Figure 28 is a schematic front view of the connection element of Figure 27,

- Figure 29 is a schematic bottom view of the connecting element of Figure 27,

- Figure 30 is a schematic front view of the electrical connection element of Figure 27, wherein the inserted wires are shown in cross-section,

- Figure 31 is a schematic front view of the electrical connection element of Figure 27, in which two identical wires inserted are shown in cross-section,

- Fig. 32 is a schematic front view of the electrical connection element of Fig. 27, wherein the inserted wires of two different sections are shown in cross-section.

detailed description

In FIGS. 1 to 32 , different embodiments of an electrical connection element 10 ; 110 ; 210 ; 310 ; 410 are shown, which advantageously constitute an electrical terminal of an electrical device, such as a power socket or any switch. It is able to connect at least one electrical line 1 , 2 ; 1A, 2A, 3A originating from the grid to the electrical components of the device for powering it.

Each electric wire 1, 2; 1A, 2A, 3A shown in Figs. 4 to 11 and Figs. 30 to 32 comprises a conductive core 3, 4; 1B, 2B surrounded by an insulating sheath 5, 6; 1C, 2C, 3C , 3B.

The electrical connection element 10; 110; 210; 310; 410 comprises a first slot 11; 111; 211; 311; 411 through which at least one insulated first electric wire 1; 1A is introduced. The gap 11; 111; 211; 311; 411 is delimited between two edges 11A, 11B; 111A, 111B; 211A, 211B; 311A, 311B; The edges are sharp (sharp).

Here, "sharp edge" refers to the edge delimiting the gap of the connecting element, which edge is adapted to pass through the insulating sheath 5, 6 of the electric wire 1, 2; 1A, 2A, 3A; 1C, 2C, 3C to reach The electric wire 1, 2; the conductive core 3, 4 of 1A, 2A, 3A; 1B, 2B, 3B.

For this purpose, in the first and fifth embodiments of the connecting element 10; 410 shown in FIGS. 1 to 11 and FIGS. 27 to 32, the sharp edge of the slot 11; Passing the electric wire 1 through the slit punctures (tears) the insulating sheath 5 of the electric wire, as described below.

In the other three embodiments of the connecting element 110; 210; 310 shown in Figures 12 to 26, the thickness of the sharp edge itself is thin enough to pierce the insulating sheath even without a cut.

More particularly, the sharp edge can be obtained by a punching (stamping, rolling) method: it is pressed in order to facilitate its thinning and to facilitate piercing or cutting of the insulating sheath 5; 6 .

This sharp edge delimiting the first slit 11; 411 is thus suitable for piercing the insulating sheath 5; 1C of the first electric wire 1 when the first electric wire 1 is introduced into the first slit 11; 411, in order to contact the conductive core 3; 1B, thereby establishing electrical contact between the conductive core and said electrical connection element. The electrical connection element 10; 410 is thus an element for piercing the insulating sheath.

This is shown more particularly in FIGS. 5 to 7 and 30 to 32 , in the case of the first and fifth embodiments. However, the insertion of the wires is similar to that of the other embodiments.

It is worth noting that said two edges 11A, 11B; 111A, 111B; , 211B; 311A, 311B; 411A, 411B belong to the electrical connection element 10; 110; 210; 310; ;230, 240; 330, 340; 430, 440.

Preferably, one of the two parts 30 , 40 ; 130 , 140 ; 230 , 240 ; 330 , 340 ; 430 , 440 of the electrical connection element 10 ; 110 ; 210 ; 310 ; 410 ; 430 is made of a material with high electrical conductivity, while the other 40; 140; 240; 340; 440 of the two parts 30, 40; 130, 140; Made of low conductivity material.

For example, the part 30; 130; 230; 330; 430 with higher conductivity is made of copper or a copper-containing alloy, preferably brass, while the other part 40; 140; 240; 340; 440 is made of stainless steel, steel or has other metal alloys that are sufficiently flexible.

It is also possible to optimize the selection of the electrical properties of the material with greater conductivity to ensure that each wire 1, 2; 1A, 2A, 3A introduced into the electrical connection element 10; 110; 210; Satisfactory electrical conductivity among them, and cost reduction due to limiting the amount of material used.

Furthermore, as explained in detail below, the mechanical properties of the material with less electrical conductivity can be optimized in order to facilitate the connection of each wire 1, 2; 1A, 2A, 3A to the electrical connection element 10; 110; 210; 310; 410. 1A, 2A, 3A and the part of the electrical connection element 10; 110; 210; 310; 410 made of a material with greater electrical conductivity.

Advantageously, the sharp edges 11A; 111A; 211A; 311A; 411A delimiting the gap 11; 111; 211; 311; 411 ( FIGS. 1 , 2 , 12 , 22 , 27 to 29 ) belong to two distinct Parts 30 ; 130 ; 230 ; 330 ; 430 of the parts are made of a material having greater electrical conductivity. This establishes a satisfactory electrical contact between the electrical connection element and the conductive core of the wire.

As explained in more detail later, when the electric wire 1; 1A is introduced into the first slot 11; 111; 211; 311; 411, the sharp edge 11A; 111A; 211A of the first slot 11; 111; ; 311A; 411A cuts the insulating sheath 5; 1C of the electric wire 1; 1A.

According to the different embodiments shown here, the electrical connection element 10; 110; 210; 310; 410 comprises two different slots 11, 21; 111, 121 intended to receive the electric wires 1, 2; 1A, 2A, 3A, respectively; 211 , 221 ; 311 , 321 ; 411 , 421 , one of these wires 1 , 2 ; 1A, 2A, 3A comes directly from the grid, while the other is intended to connect said electrical connection element with the other.

Thus, the connecting element 10; 110; 210; 310; 410 advantageously constitutes an implantable electrical connection allowing the establishment of an electrical connection between two electric wires 1, 2; 1A, 2A, 3A (Figs. 4 to 11 and Figs. terminals. With the aid of this terminal, two electrical devices can be connected in series to the grid.

The second slot 21; 121; 221; 321; 421 is the same as the first slot 11; 111; 211; 311; 121A, 121B; 221A, 221B; 321A, 321B; 421A, 421B, one of which is a sharp edge.

The first and second slits 11, 21; 111, 121; 211, 221; 311, 321; 411, 421 differ in that one of them is deformable and the other is not. 111B; 211B; 311B; 411B adapted to be independent of the edges 21A, 21B; 121A, 121B; 221A, 221B; ; 421A, 421B move. Likewise, at least one edge 21B; 121B; 221B; 321B; 421B of the second slot 21; 121; 221; 321; , 111B; 211A, 211B; 311A, 311B; 411A, 411B move.

In the edges of the first and second slots 11, 21; 111, 121; 211, 221; 311, 321; 411, 421, respectively belonging to different slots 11, 21; 111, 121; 211, 221; 311, 321; At least two edges of 411, 421 are discontinuous, ie they do not extend consecutively to each other.

More precisely, said first slot 11; 111; 211; 311; 411 and second slot 21; 121; 221; 321; ; X21, X22; X31, X32; X41, X42 extended. These longitudinal axes X1 , X2 ; X11 , X12 ; X21 , X22 ; X31 , X32 ; X41 , X42 are parallel, as shown in FIGS. 2 , 16 , 17 , 22 and 28 .

In the case of the first, second and third embodiments, the edges of each slot 11, 21; 111, 121; 211, 221 are parallel to each other and along the longitudinal axis X1, X2; X11, X12 of the respective slot; X21, X22 extended.

In the case of the fourth and fifth embodiments, the edges of each slit 311; 321; 411; 421 forming a slight angle to each other, the longitudinal axes X31, X32; X41, X42 is parallel to adjacent angles.

In particular, the electrical connection element 10; 110; 210; 310; 410 is formed by assembling said two distinct parts 30, 40; 130, 140; 230, 240; 330, 340; 430, 440.

It comprises a central part 30; 130; 230; 330; 430 and a peripheral part 40; 140; 240; 340; 440 which surrounds the central part 30;

The first slit 11; 111; 211; 311; 411 and the second slit 21; 121; 221; 321; 421 are defined respectively at two opposite edges 11A, 11A, 21A; 111A, 121A; 211A, 221A; 311A, 321A; 411A, 421A and the peripheral portion 40; 321B; between 411B and 421B.

The different embodiments in the figures differ in the shape and relative arrangement of the central and peripheral parts of the connecting element.

Regardless of the embodiment, the central portion 30; 130; 230; 330; 430 assumes the shape of a tongue 30A; 130A; 230A; 330A; 430A in elongated form. The tongue 30A; 130A; 230A; 330A; 430A and thus the central part 30; 130; 230; 330; 430 comprises support branches 31; 131; 231; 331;

The functional branches 32; 132; 232; 332; 432 comprise longitudinal edges constituting said opposite sides of said central portion 30; 130; 230; 330; 430 of the electrical connection element 10; 110; 210; 11A, 11B; 111A, 111B; 211A, 211B; 311A, 311B; 411A and the edge 21A, 21B; 121A, 121B; 221A, 221B; 321A, 321B;

The opposite edges 11A, 21A; 111A, 121A; 211A, 221A; 311A, 321A; 411A, 411A, 411A of the central part 30; 130; 230; 330; 430 are carried exclusively by the functional branches 32; . The edges of the support branches 31 ; 131 ; 231 ; 331 ; 431 do not participate in the delimitation of the gap of the connecting element.

In the first, second and fifth embodiments shown in Figures 1 to 16 and Figures 27 to 32, the tongue 30A; 130A; 430A is folded in the shape of an L, the branches of which define the supporting branches 31; 131; 431 and functional branches 32;132;432.

In a third embodiment shown in FIGS. 17 to 21 , the functional branch 232 of the tongue 230A is formed by folding along one end of the tongue 230A at an acute angle. This is similar to the functional branch of the first and second embodiments.

The support branch 231 here has a more complex form. It includes a planar portion 231A adjacent to the functional branch 232 and a top curved portion 231B whose free end 231C passes through a window (slit) 234 of the planar portion 231A (see FIG. 18 ).

This particular shape allows to define at the window 234 of the tongue 230A a receiving receptacle for receiving an electrical connection pin (not shown) of an electrical device ( FIGS. 19 and 20 ). This is a connecting pin with a rectangular or circular cross section. The top curved portion 231B of the tongue 230A establishes electrical contact between the receiving socket of the electrical connection element 210 and the connection pin.

In the fourth embodiment shown in Figures 22 to 26, the functional branch 332 is formed by folding at a right angle along one end of the tongue 330A. This is similar to the functional branches of the first, second and third embodiments.

The supporting branches 331 also have a complex form. It comprises a bottom 331 adjacent to the functional branch 332 , and a rear portion 331B extending parallel to the functional branch 332 from the same side of the bottom 331A as the functional branch 332 . The free end 331C of the rear portion 331B forms a turnback towards the functional branch 332 and extends parallel to the bottom 331A of the support branch 331 (see FIGS. 23 and 25 ).

Regardless of the embodiment, the support branches 31 ; 131 ; 231 ; 331 ; 431 and the functional branches 32 ; 132 ; 232 ; 332 ; 432 of the central part 30 ; 130 ; 230 ; 330 ; ; 333 ; 433 ( FIGS. 1 , 4 , 8 , 12 , 14 , 16 , 18 , 23 , 26 and 27 ) are connected consecutively.

The tongue 30A; 130A; 230A; 330A; 430A constituting the central part 30; deformation). The central part 30; 130; 230; 330; 430 is made of a material having a relatively high electrical conductivity, preferably brass.

Edge 11A; 111A; 211A; 311A of the first slot 11; 111; 211; 311; 411 formed by the longitudinal edges of the functional branches 32; 132; 232; 332; 432 of the central part 30; 411A and the second slit 21; 121; 221; 321; 421 edge 21A; 121A; 221A; 321A; The core establishes electrical contact.

As previously mentioned, the sharp edge may comprise a cut (in the case of the first and fifth embodiments) and/or be sharpened by a stamping method (in the case of the other embodiments).

In the latter case, the sharp edge has a thickness of, for example, from 0.5 to 0.6 mm, corresponding to the thickness of the center of the tongue 30A; 130A; 230A; 330A; 430A, up to a thickness of 0.3 mm.

Likewise, the thickness of the sharp edge of the tongue is similar to the thickness of the edge of the slot formed by the peripheral portion, as described below.

The sharp edge can also be sharp due to its original thinner thickness.

The peripheral portion 40; 140; 240; 340; 440 is a spring piece 40A; 140A; 240A; 340A; 440A which is generally U-shaped. It comprises a bottom 41; 141; 241; 341; 441 from which rise two lateral wings 42; 142; 242; 342; 442 arranged facing each other. The lateral wings 42; 142; 242; 342; 442 surround the central part 30; 130; 230; 330; 430 of the functional branch 32; 132; 232; 332; See especially Figures 1, 4 and 8, 12, 17, 22 and 27).

In the first, second, fourth and fifth embodiments, the lateral wings 42; 142; 342; 442 are connected to the base 41; 141; 341; 441 by bends adapted to deform elastically to form pivot hinges, 1A, 2A, 3A is introduced into a slot 11; 21; 111; 121; 311; 321; 411; 421 of the electrical connection element 10; The lateral wings 42; 142; 342; 442 corresponding to the functional branches 32; 132; 332; 432 of the central part 30; 130; 330; 430 are spaced apart (Figs. 6, 10 and 30 to 32).

The separation of the lateral wings 42; 142; 342; 442 is not in the same manner as in the discussed embodiment, as described in more detail below.

In the third embodiment of FIGS. 17 to 21 , the bottom 241 is curved. The base 241 and the lateral wings 242 are likewise adapted to deform elastically to allow the introduction of the wires 1 , 2 into a slot 211 , 221 as described in more detail below.

140A; 240A; 340A; 440A each lateral wing 42; 142; 242; 342; ; 110; 210; 310; 410 central part 30; 130; 230; 330; 430 functional branches 32; 132; 232; 332; .

The uprights 43; 143; 243; 343; 443 of each lateral wing 42; 142; 242; 342; 442 are in the direction in which the bend is formed from the main part 44; The functional branch 32; 132; 232; 332; 432 of the part 30; 130; 230; 330; 430 (see especially Figs. 3, 7, 11, 12, 17, 22 and 27).

In the first, second, fourth and fifth embodiments, in addition to any deformation caused by inserting the wire into one of the slits of the connecting element, the peripheral portion 40; 140 of the electrical connecting element 10; 110; 310; 410 340; 440 each lateral wing 42; 142; 342; 442 main part 44; 144; 344; And also extend substantially perpendicularly to the main surface of the functional branches 32; 132; 332; 432 of the central portion 30; 130; 330; 430 of the electrical connection element. The main parts 44; 144; 344; 444 of the lateral wings 42; 142; 342; 442 are parallel.

In the third embodiment of the connection element 210 the main part 244 of each lateral wing 242 of the peripheral part 240 of the electrical connection element 210 extends substantially perpendicularly to the main surface of the functional branch 232 of the central part 230 of the electrical connection element. The main portions 244 of the lateral wings 242 are parallel to each other.

In the first, second, third and fourth embodiments, apart from the bend formed by each upright, the upright is perpendicular to the main part 44; 144 of the corresponding lateral wing 42; 142; 242; 342 ;244;344 Extended. The post also extends along a median plane coincident with the median plane of the functional branch 32; 132; 232; 332 of the central portion 30; 130; 230; 330 of the electrical connection element 10; 110; 19 and 22). Here, each upright 43 ; 143 ; 243 ; 343 is formed by folding a part of the corresponding lateral wing 42 ; 142 ; 242 ; 342 .

In the fifth embodiment, the columns 443 extend obliquely with respect to each other and toward the inside of the outer peripheral portion 440 .

Here, the uprights 443 are achieved by forming splits in the main portion 444 of each lateral wing 442 .

The free edge of each of these uprights 43; 143; 243; 343; 443 is electrically connected to the functional branch 32; 132; ; 332; one of the longitudinal edges of 432 extends face to face.

Uprights 43; 143; 243; 343; 443 form said free edges facing the peripheral portion 40; 140; 240; 340; 440 of the electrical connection element 10; 110; 210; 111; 211; 311; 411 the other edge 11B; 111B; 211B; 311B; 411B and the second slit 21; 121; 221; 321;

Here, too, they are sharp edges.

It has for example a plurality of cuts 13, 23; 413, 423 as described in the first and fifth embodiments, and/or is very small in thickness to give it a sharp character. This thickness can be, for example, the original thickness of the stainless steel sheet used to make the leaf spring. The thickness is, for example, about 0.4 mm.

Likewise, it together with said longitudinal edges opposite the functional branches 32; 132; 232; 332; 432 of the central part 30; 130; 230; 330; 111 ; 211 ; 311 ; 411 and a second slot 21 ; 121 ; 221 ; 321 ; 421 of the connection element 10 ; 110 ; 210 ; 310 ;

The first and second slots 11, 21; 111, 121; 211, 221; 311, 321; 411, 421 each lead to a channel (inlet) 11C, 21C; 111C, 121C; 211C, 221C for the wires 1, 2 ; 311C, 321C; 411C, 421C (see especially Figures 1, 2, 4, 5, 6, 8, 9, 10, 13, 14, 17, 18, 22, 24, 28).

More precisely, here, the first and second slots 11, 21; 111, 121; 211, 221; 311, 321; 411, 421 each comprise a V-shaped opening 11C, 21C; 111C, 121C; 211C, 221C; 311C, 321C; 411C, 421C, the opening through the inner portion 14, 24; 114, 124; 214, 224; 314, 324; 28) Extending along the opening, the edges 11A, 11B; 21A, 21B; 111A, 111B; 121A, 121B; 211A, 211B; 221A, 221B of the slots 11, 21; First, second and third embodiments), or along the opening, a certain angle is formed between the edges 311A, 311B, 321A, 321B of each slit 311, 321, so that the width of the corresponding slit is in the insertion direction of the electric wire (fourth embodiment, see Fig. 26), or along the opening, a certain angle is formed between the edges 411A, 411B, 421A, 421B of each slit 411, 421, so that the width of the corresponding slit is in the insertion direction of the wire increase (fifth embodiment, see FIG. 28 ).

Here, it is assumed that the edges of the slots of the connecting elements are in rest position, ie no wires are inserted into these slots.

In the first and fifth embodiments of the electrical connection element, at the connection between the opening 11C, 21C; 411C, 421C and the inner part 14, 24; 414, 424 of each slot 11, 21; The edge 11A, 11B, 21A, 21B; 411A, 411B, 421A, 421B of each slit 11, 21; 411, 421 is provided with a cutting portion 13, 23; Pierce the wire as it is introduced into the corresponding slot.

In other embodiments, the sharp edges 111A, 111B; 121A, 121B; 211A, 211B; 221A, 221B; 311A, 311B; The thickness is reduced along the length to facilitate piercing the wire.

In addition, it is conceivable that the edge of each slit has a cutting area and a non-cutting area.

For example, the edge of the opening of each slit in the central part of the connecting element is a sharp edge, eg with a cut, and the edge of the inner part of the slit in the central part is not a sharp edge.

Conversely, the edge of the opening of each slit on the peripheral portion of the connecting element is not a sharp edge, whereas the edge of the inner portion of the slit on the peripheral portion is a sharp edge.

In this way, when a wire is inserted into the opening of the slot, the outer peripheral portion of the connecting element pushes the wire against the sharp central portion, and furthermore, when the wire is introduced into the inner portion of the slot, the central portion bears against the sharp outer periphery Partially push the wire.

In this way, the two parts, that is, the central part and the peripheral part, pass through the insulating sheath of the electric wire in sequence to contact the conductive core of the electric wire. Thus, a particularly weak electrical contact is formed.

Regardless of which embodiment of the electrical connection element is envisaged, from a mechanical point of view, the central part 30; 130; 230; 330; 430 of the electrical connection unit 10; 110; 210; 310; ;140;240;340;440. The peripheral portion 40; 140; 240; 340; 440 of the electrical connection unit 10; 110; 210; 310; , 121; 211, 221; 311, 321; 411, 421 are deformed, while the central part 30; 130; 230; 330; 430 is not deformed.

Generally, the central portion 30; 130; 230; 330; 430 is joined to the peripheral portion 40; 140; 240; 340; 440.

More precisely, said tongue 30A; 130A; 230A; 330A; 430A is exclusively in contact with said spring leaf 40A; 140A; 240A; 340A; 440A link.

In the first, fourth and fifth embodiments, the central part 30; 330; 430 of the electrical connection element 10; 310; 410 is exclusively at the supporting branch 31; 331; 431 of the central part 30; 330; Connected to the bottom 41 ; 341 ; 441 of the peripheral portion 40 ; 340 ; 440 . The lateral wings 42; 342; 442 of the peripheral portion 40; 340; 440 are adapted to surround the longitudinal axis X1, X2; X31, X32; X41, X42 perpendicular to or The substantially vertical pivot axes P1 , P2 ; P31 , P32 ; P41 , P42 pivot ( FIGS. 1 , 22 and 28 ).

More precisely, in the first and fifth embodiments, the supporting branches 31 ; 431 of the central part 30 are in contact with the bottom 41 ; 441 of the peripheral part 40 ; 440 . Subsequently, the functional branches 32; 432 of the central part 30; 430 rise from the bottom 41; 441 of the peripheral part 40; 440 on the same side of the bottom 41; 441 as the lateral wings 42; 442 of the peripheral part 40; 440 . The bottom 41 ; 441 of the peripheral portion 40 ; 440 is in the vicinity of the bend 33 ; 433 for connecting the functional branch 32 ; 432 to the support branch 31 ; 431 .

In the fourth embodiment, the situation is different because the direction of the functional branches 332 of the U-shaped peripheral portion 340 relative to the central portion 330 is reversed.

Here, in contact with the bottom 341 of the peripheral portion 340 is the free end 331C of the rear portion 331B of the support branch 331 of the central portion 330 . In this case, the bottom 341 of the peripheral portion 340 extends to the vicinity of the free ends of the functional branches 332 of the central portion 330 . The base 341 does not thus cover the free ends of the functional branches 332 . Instead, it extends concavely from the free end to allow free access to the slots 311 , 321 .

Here, the connection of the central part and the peripheral part is formed by a connection that prohibits all relative movement of the central part 30; 330; 430 and the peripheral part 40; 340; 440. It can be fastening, for example by embedding, clamping, crimping, welding or riveting.

Thus, advantageously, the lateral wings 42; 342; 442 of the peripheral portion 40; 340; 440 of the electrical connection element 10; 310; 410 are mechanically identical to the functional branches 32; 332; independent.

Due to the bend connecting the lateral wings with the bottom of the peripheral part, they are adapted to surround the longitudinal axis X1, X2; X31, X32; X41, X42 perpendicular to the respective slot 11, 21; 311, 321; The pivot axes P1, P2; P31, P32; P41, P42 pivot.

In the case of the fourth and fifth embodiments, the pivot axes P31 , P32 ; P41 , P42 are perpendicular to the longitudinal axis X31 , X32 ; X41 , X42 of the respective slot, forming an angle between the edges of the slot.

As a result, when the electric wire 1 is introduced into the first slot 11; 311; 411 (Figures 4 to 7), this first slot 11; 311; belonging to the peripheral portion 40; 340; 440 of the electrical connection element 10; 310; 410; Only the edge 11B; 311B; 411B of 411 moves to allow insertion of the wire (the other edge 11A; 311A; 411A belonging to the central part 30; 330; 430 does not move).

This causes the corresponding first introduction slot 11 ; 311 ; 411 to open without causing the second slot 21 ; 321 ; 421 to remain in the initial state to open. This is particularly clearly visible in the first embodiment in FIG. 6 and in the fifth embodiment in FIG. 30 .

In the first embodiment, the wires 1 , 2 are introduced into the opening 11C, 21C of one of the slots 11 , 21 located near the free end of the lateral wing 42 closest to the peripheral portion 40 . This free end of the lateral wing 42 is located furthest from the bend connecting the lateral wing 42 and the bottom 41 of the peripheral part 40, from the side of the slot 11, 21 where the lateral wing 42 is more easily separated from the central part 30 Lead in wires 1, 2. This facilitates the insertion of wires.

In this configuration, the deeper the wires 1 , 2 are inserted into the slots of the connecting elements, the greater the stresses exerted on the wires by the edges of the slots, since here the edges of each slot are parallel.

In order to avoid plastic and irreversible deformation of the lateral wings 442 of the connecting element 410, which may be the case in which large diameter wires are inserted, in the fifth embodiment, the edges of each slot 411, 421 are made not parallel, but inclined towards each other so that they are closest at the opening 411C, 421C of each slot and move away from each other in the direction in which the wires are inserted into the slots 411 , 421 .

In this way, when the wires are inserted into the slits, the edges of the slits 411, 421 exert stress on the wires 1A, 2A, 3A and vice versa the wires 1A, 2A, 3A The stress exerted on the edges of the slots 411, 421 is also limited.

In the fourth embodiment, on the contrary, the wires 1, 2 are introduced farther from the free ends of the lateral wings 342 of the peripheral portion 340, i.e. closer to the bend connecting the lateral wings 342 of the peripheral portion 340 with the bottom 341. In the openings 311C, 321C of the slits 311, 321. Thus, the electric wires 1 , 2 are introduced from the side of the slit 311 , 321 where the lateral wings 342 are more difficult to separate from the central portion 330 . In this way, it is beneficial to pierce or puncture the insulating sheath of the wire. Furthermore, here a small angle is formed between the edges of the slots 311 , 321 in order to make the inner parts 314 , 324 of the slots 311 , 321 slightly larger at the junction with the openings 311C, 321C of the slots. Again, this facilitates the insertion of wires.

When the second electric wire 2 is introduced into the second slot 21; 321; 421, only the edge 21B of the second slot 21; 321; 421 belonging to the peripheral portion 40; 340; 440 of the electrical connection element 10; 310; 410; 321B; 421B moves to allow insertion of the wire (the other edge 21A; 321A; 421A belonging to the central part 30; 330; 430 does not move). This causes the corresponding second slit 21 ; 321 ; 421 to open without causing the first slit 11 ; 311 ; 411 to open. Thus, the connection established between the wire 1; 1A and the electrical connection element by inserting the wire 1; 1A into the first slot 11; 311 is not disturbed. This is especially clearly visible in Figures 10, 31 and 32.

In the second and third embodiments, the central part 130 ; 230 of the electrical connection element 110 ; 210 is not joined to the bottom 141 ; 241 of the peripheral part 140 ; 240 . The lateral wings 142; 242 of the peripheral portion 140; 240 are each adapted to pivot about a pivot axis P11, P12; P21, P22 parallel to the longitudinal axis X11, X12; X21, X22 of the respective slot 111, 121; 211, 221.

In this configuration, the stress exerted on the wire by the edge of the slot does not depend on the distance the wire is inserted along the slot. This stress remains constant regardless of the position of the wire in the slot of the connecting element.

More precisely, in the second embodiment of the connecting element 110 according to the invention, the peripheral part 140 comprises an additional partition 150 ( FIGS. Lateral wings 142 extend between them. This additional partition 150 is distinct from the lateral wings 142 and is not connected thereto by the bottom 141 . This additional partition also extends perpendicular to the lateral wings 142 .

Here, the central part 130 of the electrical connection element 110 is exclusively joined at the supporting branch of this central part 130 with the additional web 150 .

More precisely, the supporting branches 131 of the central part 130 contact the additional partitions 150 of the peripheral part 140 . Here, the functional branch 132 of the central part 130 rises from the additional partition 150 of the peripheral part 140 on the side of the lateral wings 142 of the peripheral part 140 .

Since all relative movement of the central portion 130 and the peripheral portion 140 is inhibited, the connection of the central portion and the peripheral portion is also formed. The joining can be for example fixing by embedding, clamping, crimping, welding or riveting.

Also advantageously, the lateral wings 142 of the peripheral portion 140 of the electrical connection element 110 are mechanically independent from the functional branches 132 of the central portion 130 . Due to the bend connecting the lateral wings 142 with the bottom 141 of the peripheral portion 140 , they are each adapted to pivot about a pivot axis P11 , P12 parallel to the longitudinal axis X11 , X12 of the respective slot 111 , 121 .

Finally, in the third embodiment, the central part 230 of the electrical connection element 210 is connected exclusively at the supporting branches of this central part 230 with the lateral partitions 242 of the peripheral part 240 .

More precisely, here, the tongue 230A forming the central part 230 comprises two flanges 235 along the longitudinal edges of the planar part 231A of the support branch 231, these flanges extending along the lateral wings 242 of the peripheral part 240 without contact with it. The end of the flange 235 closer to the bottom 241 of the peripheral portion 240 includes a tab 236 ( FIGS. 17 , 18 ) which abuts against a lateral wing 242 adjacent to the peripheral portion 240 and is provided with a The opening 246 of the lateral wing 242 cooperates with the device to connect the peripheral portion and the central portion of the connection element 210 .

Here, therefore, the supporting branches 231 of the central part 230 are in contact with the lateral wings 242 at the tabs 236 .

Advantageously, as in the other embodiments, the lateral wings 242 of the peripheral portion 240 of the electrical connection element 210 are mechanically independent from the functional branches 232 of the central portion 230 . Due to the cooperation of the lugs 236 of the central part 230 and the openings 246 of the peripheral part 240, they are each adapted to pivot about a pivot axis P21, P22 (Figs. 17, 22) parallel to the longitudinal axis X21, X22 of the respective slot 211, 221 .

As a result, in the second and third embodiments, when the electric wire 1 is introduced into the first slot 111; 211, only the edge of the first slot 111; 211 belonging to the peripheral portion 140; 240 of the electrical connection element 110; 210 111B; 211B moves to allow the insertion of wires (the other edge 111A; 211A belonging to the central part 130; 230 does not move). This causes the corresponding first guide slit 111; 211 to open without causing the second slit 121; 221 which remains in the initial position to open.

When the second electric wire 2 is introduced into the second slit 121; 221, only the edge 121B; 221B of the second slit 121; 221 belonging to the peripheral portion 140; 240 of the electrical connection element 110; The other edge 121A; 221A of the central part 130; 230 does not move). This causes the corresponding second slit 121 ; 221 to open without causing the first slit 111 ; 121 to open. Thus, the connection established between the wire 1 and the electrical connection element 110; 210 by inserting the wire 1 into the first slot 111; 211 is not disturbed.

Regardless of the embodiment of the connecting element according to the invention, it is thus possible to connect two wires 1, 2 in succession (continuously) without the connection of the second wire interfering with the connection of the first wire, as shown in FIGS. 6 and 10 shown in the first embodiment of .

This is likewise achieved by means of the stiffening of the connecting element 10 ; 110 ; 210 ; 310 ; 410 . The stiffening means prevent the transmission of deformations of one lateral wing to the other. More precisely, it prevents the transfer of the separation movement of one lateral wing when opening one slit for insertion of the wire to the other lateral wing defining the other slit.

The stiffening means of the connecting element 10; 110; 210; 310; 410 comprise internal stop elements against which said lateral wings 42; 142; 242; 342; 442 will abut when deformed towards the inside of the connecting element.

More precisely, here, in the first, second, fourth and fifth embodiments, the tongue 30A; 330A; 430A forming the central part 30; 130; 330; 430 comprises lateral projections 35; 135; 335 ; 435 ( FIGS. 1 and 2 ), this lateral projection forms said inner stop element for the lateral wings 42 ; 142 ; 342 ; 442 of the peripheral portion 40 ; 140 ; 340 ; 440 .

142; 342; 442 of the peripheral portion 40; 140; 340; 440 thus remain against the central portion 30; 130; 330 ; 430 of lateral projections 35 ; 135 ; 335 ; 435 .

Furthermore, it is particularly advantageous that the lateral projections 35; 135; 335; 435 harden the electrical connection element assembly, especially when only in the two slots 11, 21; 111, 121; 211, 221; 311, 321; 411, When inserting the wire in one of the 421.

In the first, second, fourth and fifth embodiments of the connecting element 10; 110; 310; 410, the lateral protrusions 35; 135; 335; Deformation to wing 42; 142; 342; 442.

1A ( FIGS. 6 and 30 ) is for example introduced into the first slot 11 ; 111 ; 311 ; 411 of the connection element 10 ; 110 ; 310 ; 410 and at the same time no wire is introduced into the second slot 21 ; 121 ; 321 ; 421, the lateral wings 42; 142; 342; 442 near the first slit 11; 111; 311; 411 are deformed to allow the passage of the electric wire 1; The functional branches of 32;132;332;432.

This lateral wing 42;142;342;442 in the vicinity of the first slot 11;111;311;411 is connected to the second slot 21;121 by the bottom 41;141;341;441 of the peripheral portion 40;140;340;440 ;321;another lateral wing near 421. Likewise, in the absence of lateral protrusions 35; 135; 335; 435, deformation of the lateral wings 42; 142; 342; 442 in the vicinity of the first slot 11; 111; 311; ; 321; 421 near the other lateral wing 42; 142; 342; 442 is deformed towards the inside of the connecting element.

Thus, this other lateral wing 42; 142; 342; 442 in the vicinity of the second slit 21; 121; 321; 421 will tend to approach the functional branch 32; 132; 332;432. Here, the lateral protrusion 35; 135; 335; 435 of the central part prevents the further lateral wing 42; 142; 342; 442 in the vicinity of the second slot 21; 121; 321; out of shape.

They also prevent deformation of the first lateral wings in the event of only introducing the wires into the second slot.

In the third embodiment, the top curved portions 231B of the supporting branches 231 of the tongues 230A in fact form these inner stop elements.

In this third embodiment, the stiffening of the connecting element 210 is further improved by using the tabs 236 to limit the movement of each lateral wing 242 of the peripheral portion 240 towards the outside of the connecting element 210 .

These lugs 236 thus form external stop elements that limit the outward deformation of each lateral wing 242 of the peripheral portion 240 .

As a variant, the spring tabs forming the peripheral part can also be prestressed so that the lateral wings grip the lateral projections of the tongues.

In the example of the first embodiment shown in Fig. 10, the two electric wires 1, 2 used are identical. In a variant, however, the two wires introduced into the first and second slots of the electrical connection element can have different cross-sections. Furthermore, they may be made of different materials and/or have different rigidity or flexibility characteristics.

This is shown in particular in the fifth embodiment shown in FIG. 32 .

The geometry of the connecting element 40 corresponds to the fifth embodiment, in that the edges of each slot are inclined towards each other so as to approach near the opening 411C, 421C of the respective slot 411, 421, which is particularly advantageous for receiving wires 1A, 421C of different diameters. 3A, since this insertion is thereby possible without irreversible deformation of the lateral wings 442 . In fact, wires of different diameters are inserted into the respective slots more or less away from the openings 411C, 421C.

In practice, when using the electrical connection element 10; 110; 210; 310; 410, the user introduces the first electric wire 1; 1A into the first slot 11;

During the insertion movement, the wire 1; 1A is perpendicular to the longitudinal axis X1; X11; X21; X31; X41, X42 of the slot 11; 111; 211; 311; 411 and parallel to the lateral wings 42; ;242;342;442 Extended. The wires translate in the corresponding slots, maintaining this orientation.

During insertion, the insulating sheath 5; 1C of the first electric wire 1; 1A contacts the first slot 11; 111 at the opening 11C; 111C; 211C; 311C; 411C of the first slot 11; 111; ; 211 ; 311 ; 411 edges 11A, 11B; 111A, 111B; 211A, 211B; 311A, 311B; 411A, 411B.

In the first and fifth embodiments, the cutting portion 13; 413 on the edge 11A, 11B; 411A, 411B of the first slot 11; 11B; 411A, 411B contacts the conductive core 3; 1B of the first electric wire 1; 1A.

In other embodiments, the edge of the slot is thin enough to cut the insulating sheath of the wire.

The conductive core 3 of the electric wire 1; 1A; 1B has relatively high hardness, when the gap 11; 111; 211; 311; 411 belongs to the lateral wing 42; 142; 242; 342 of the peripheral part 40; 140; 240; 340; 111B; 211B; 311B; 411B of the column 43; 143; 243; 343; 443 of the edge 11B; 111B; 142; 242; 342; 442 of the bottom portion 42; 142; 242; 342; 442 of the peripheral portion 40; (third embodiment) so as to separate said lateral wings 42; 142; 242; 342; 442 from the central part 30; 130; 230; 330; 114; 214; 314; 414 within the inner portion 14; 114; 214; 314;

Finally, when the user releases the pressure exerted on the wire 1 for its introduction, the conductive core 3; 1B of the wire 1 is clamped at the edges 11A, 11B; 111A, 111B; 211A, 211B; 311A, 311B; 411A, 411B, because it belongs to the lateral wing 42 of the peripheral part 40; 140; 240; 340; 440; 142; 242; 342; 411B; 311B; 411B tends to return in the direction of the central portion 30; 130; 230; 330; 430.

The edge 11B; 111B; 211B; 311B; 411B thus brings the conductive core 3; 1C of the electric wire 1; 1A against the central part 30; 130; 230 of the first gap 11; 111; 211; 311; 411 belonging to the electrical connection element; 11A; 111A; 211A; 311A; 411A of the functional branch 32; 132; 232; 332; 332;

In the second, third and fourth embodiments, the wires cannot pass through the connecting element 110 ; 210 .

In the second and third embodiments, this is due to the orientation of the U-shape formed by the leaf springs 140A; 240A to position the bottom 141; 241 on the track of the wire.

More precisely, in the second embodiment, the bottom 141 of the peripheral portion of the connection element forms a barrier preventing the trajectory of the electric wire from forming a straight line through the slit of the connection element.

In the third embodiment, the tongue 230A comprises a partition 238 at the window 234 of the planar portion 231A of the support branch 231 along the edge of the window 234 oriented towards the functional branch 232, which divides between the functional branch 232 and the top curved portion. 231B extends between.

The spacer 238 forms a stop for the wires and ensures that it does not block the receiving receptacle formed at the window 234 .

In the fourth embodiment, the rear portion 331B of the support branch 331 extends parallel to the functional branch 332 on the same side as the bottom 331A on which this functional branch 332 is located, and also forms a barrier when the wire is inserted between the slits of the connection element One center prevents wires from passing through connecting elements.

The second wire 2 is introduced in a similar manner.

Advantageously according to the invention, only the central part of the electrical connection element is made of a material with high electrical conductivity, which is economical. In addition, since the peripheral portion of the electrical connection element is made of a different material from that of the central portion, for this peripheral portion, by using a material that is generally electrically conductive but mechanically capable of ensuring the effectiveness of the wire being pierced between the edges of the corresponding slit As a result, the reliability of electrical connection elements can be improved.

As a variant, different arrangements are also conceivable, which relate to the geometry of the electrical connection elements.

For example, the lateral wings of the peripheral portion may not be parallel to each other when at rest, ie without wires inserted into the connecting element.

Claims (19)

1. An electrical connection element (10; 110; 210; 310; 410) for piercing an insulating sheath, comprising a first slot (11) for introducing at least one insulated wire (1, 2; 1A, 2A, 3A) ; 111; 211; 311) and a second slit (21; 121; 221; 321; 421), the first and second slits are composed of two facing edges (11A, 11B, 21A, 21B; 111A, 111B, 121A, 121B; 211A, 211B, 221A, 221B; 311A, 311B, 321A, 321B; 411A, 411B, 421A, 421B), wherein at least one edge is sharp, said Two edges (11A, 11B; 111A, 111B; 211A, 211B; 311A, 311B; 411A, 411B) respectively belong to two parts (30, 40; 130, 140; 230, 240; 330, 340; 430, 440), these two parts include a central part (30; 130; 230; 330; 430), which is composed of a peripheral part (40; 140; 240; 340 ; 440) surrounding, these edges bounding said first and second slits (11, 21; 111, 121; 211, 221; 311, 321; 411, 421) are formed by a central portion (30; 130; 230; 330; 430) and two facing edges of the peripheral portion (40; 140; 240; 340; 440), the central portion (30; 130; 230; 330; 430) is formed as a tongue (30A ; 130A; 230A; 330A; 430A), the outer peripheral portion (40; 140; 240; 340; 440) is in the form of a spring leaf (40A; 140A; 240A; 340A; 440A), which as a whole is U-shaped and has a base (41; 141; 241; 341; 441) from which rise two opposite lateral wings (42; 142) surrounding said tongue (30A; 130A; 230A; 330A; 430A) ; 242; 342; 442), characterized in that the two parts (30, 40; 130, 140; 230, 240; 330, 340; 430, 440) are different and consist of Made of two materials. 2. The electrical connection element (10; 110; 210; 310; 410) according to claim 1, wherein said sharp edges belong to two phases of the electrical connection element (10; 110; 210; 310; 410) The one of the different parts (30, 40; 130, 140; 230, 240; 330, 340; 430, 440) made of a material with higher conductivity. 3. The electrical connection element (10; 110; 210; 310; 410) according to any one of claims 1 and 2, wherein said first and second slots (11, 21; 111, 121; 211 , 221; 311, 321; 411, 421) are arranged side by side so as to extend along two different longitudinal axes (X1, X2; X11, X12; X21, X22; X31, X32; X41, X42). 4. The electrical connection element (10; 110; 210; 310; 410) according to any one of claims 1 to 3, wherein the central part (30; 130; 230; 330; 430) is made of The conductive material of the material of the peripheral part (40; 140; 240; 340; 440) is made. 5. The electrical connection element (10; 110; 210; 310; 410) according to any one of claims 1 to 4, wherein each lateral side of the peripheral portion (40; 140; 240; 340; 440) The wings (42; 142; 242; 342; 442) each comprise uprights (43; 143; 243; 343; 443) extending in the direction of the tongues (30A; 130A; 230A; 330A; 430A), these uprights (43 ; 143; 243; 343; 443) each free end forms said facing edge of the peripheral portion (40; 140; 240; 340; 440) of the electrical connection element (10; 110; 210; 310; 410) ; wherein the tongue (30A; 130A; 230A; 330A; 430A) includes two longitudinal edges forming said opposite edges of the central portion (30; 130; 230; 330; 430). 6. The electrical connection element (10; 110; 210; 310; 410) according to any one of claims 1 to 5, wherein the tongue (30A; 130A; 230A; 330A; 430A) comprises functional branches (32; 132; 232; 332; 432) and supporting branches (31; 131; 231; 331; 431), said functional branches (32; 132; 232; 332; 432) comprising forming a central part (30; 130; 230; 330; 430) of said two longitudinal edges of said opposite edges; wherein said tongue (30A; 130A; 230A; 330A; 430A) is exclusively on the supporting branch (31; 131; 231; 331; 431) are connected with the spring piece (40A; 140A; 240A; 340A; 440A). 7. The electrical connection element (10; 310) according to claim 6, wherein, for connection with the spring leaf, said supporting branch (31; 331; 431) of the tongue (30A; 330A; 430A) rests against The bottom (41; 341; 431) of the spring piece (40A; 340A; 440A). 8. The electrical connection element (110) according to claim 6, wherein, in order to connect with the spring leaf, the support branch (131) of the tongue (130A) abuts against the spring leaf (40A; 340A). An additional bulkhead (150) extending from the bottom (141) of the leaf spring (140A) between the two lateral wings (142). 9. The electrical connection element (210) according to claim 6, wherein, in order to connect with the leaf spring, said support branch (231) of the tongue (230A) comprises two lugs (236), the two The lugs are adapted to remain engaged with the two openings (246) of the lateral wings (242) of the leaf spring (240A). 10. The electrical connection element (10; 310; 410) according to any one of claims 1 to 9, wherein the lateral wings (42; 342; 442) of the peripheral portion (40; 340; 440) are adapted for about a pivot axis (P1, P2; P31, P32) perpendicular or substantially perpendicular to the longitudinal axis (X1, X2; X31, X32; X41, X42) of the corresponding slot (11, 21; 311, 321; 411, 421) ;P41, P42) pivot. 11. The electrical connection element (110; 210) according to any one of claims 1 to 9, wherein the lateral wings (142; 242) of the peripheral portion (140; 240) are each adapted to surround a corresponding slot ( 111, 121; 211, 221) the longitudinal axis (X11, X12; X21, X22) is parallel or substantially parallel to the pivot axis (P11, P12; P21, P22) pivoting. 12. The electrical connection element (10; 110; 210; 310) according to any one of the preceding claims, wherein each slot (11, 21; 111, 121; 211, 221; 311, 321; 411, 421) two facing edges (11A, 11B, 21A, 21B; 111A, 111B, 121A, 121B; 211A, 211B, 221A, 221B; 311A, 311B, 321A, 321B; 411A, 411B, 421A, 421B) are sharp edges. 13. The electrical connection element (10; 110; 210; 310; 410) according to any one of the preceding claims, wherein the two distinct parts of the connection element (10; 110; 210; 310; 410) One of said two distinct parts (30; 130; 230; 330; 430) is made of a copper-containing alloy, while the other of said two distinct parts (40; 140; 240; 340; 440) is made of stainless steel or steel become. 14. The electrical connection element (10; 110; 210; 310; 410) according to any one of the preceding claims, wherein hardening means of the connection element (10; 110; 210; 310; 410) are provided to For preventing deformation of one of the lateral wings (42; 142; 242; 342; 442) of the connecting element from being transmitted to the other lateral wing (42; 142; 242; 342; 442). 15. The electrical connection element (10; 110; 210; 310; 410) according to the preceding claim, wherein said stiffening means of the connection element (10; 110; 210; 310; 410) comprise internal stop elements , said lateral wings (42; 142; 242; 342; 442) will abut against the inner stop element when deformed towards the inside of the connecting element. 16. The electrical connection element (10; 110; 210; 310; 410) according to the preceding claim, wherein said inner stop element comprises a lateral protrusion (35; 135; 235; 335; 435), The lateral projections extend from the central portion (30; 130; 230; 330; 430) of the connecting element towards the lateral wings (42; 142; 242; 342; 442) of the peripheral portion (40; 140; 240; 340; 440). )extend. 17. The electrical connection element (210) according to any one of claims 14 to 16, wherein the hardening means further comprises an outer stop element limiting each side of the peripheral portion (240) Deformation of wing (242) towards the outside. 18. An electrical device comprising an electrical connection element (10; 110; 210; 310; 410) according to any one of the preceding claims to form a connection terminal for connecting the electrical device to an electrical network. 19. The electrical device according to claim 18, wherein the shape of the tongue (230A) of the connection element (210) forming the connection terminal defines a receiving groove for receiving an electrical connection pin of another electrical device .