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
  • 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
  • H01R4/2475—Connections using contact members penetrating or cutting insulation or cable strands the contact members penetrating the insulation being actuated by screws, nuts or bolts
  • H01R4/2483—Connections using contact members penetrating or cutting insulation or cable strands the contact members penetrating the insulation being actuated by screws, nuts or bolts penetrating the area under the screw tip
• • 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
  • H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
  • H01R4/242—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members being plates having a single slot
  • H01R4/2425—Flat plates, e.g. multi-layered flat plates
• • 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
  • H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
  • H01R4/2445—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives

Definitions

• Connection device for electric wire comprising a stripping and retaining slot
• the present invention relates to a connection device for an electric wire comprising a stripping and retaining slot.
• Such a device aims to ensure the electrical connection and immobilization of at least one electrical wire sheathed in insulation, without requiring prior stripping of this wire.
• connection devices are usually used to connect wires together, for example in terminal blocks, or to connect wires to electrical equipment, such as a control member. It is already known to produce devices comprising a stripping slot made in a conductive part.
• the slot has, at one of its ends, a flared mouth intended to facilitate the insertion of the wire to be connected into the conductive part, and to ensure a cross section of the insulation surrounding the conductive core of the wire.
• the wire is presented transversely to the slit and then moved in the longitudinal direction of the slit, while itself retaining an orientation transverse to the slit.
• the conductive core of the wire comes into contact with the edges of the slot which immobilizes it by pressure, and which ensures electrical continuity between the conductive core and the conductive part.
• connection terminal which comprises a conductive connection piece with a straight stripping and retaining slot immobilized in a housing of an insulating housing itself provided with an opening which includes a light straight sheath retention surmounted by a wire introduction opening.
• the slot is longitudinally formed along a profile-shaped part having a hollow polygonal section for guiding in translation a tool tip intended to slide on either side between the folds delimiting the edges of the slot so that you can drive a wire in this slot in transverse position relative to the slot and while being guided in the internal cavity of the profiled part.
• it is necessary to have a specially adapted tool.
• Patent FR 2 61 1 406 in the name of the Applicant like the two other documents cited above, provides for its part a maneuver molded with the housing intended to serve as a pusher to slide the end of the wire between the edges of the stripping slot.
• Other documents describe other examples of ways allowing the introduction of the end of the wire to make the insulation displacement connection.
• the connecting conductive part In known connection devices, the connecting conductive part must first ensure the stripping of the wire and then a good electrical contact. It must then have electrical qualities of good conductivity but also mechanical qualities in order to guarantee the cutting of the sheath of the wire and a sufficient contact force to have a reliable contact.
• Known materials which can be good conductors do not have the desired mechanical characteristics, in particular from an elasticity point of view, to allow good stripping and a satisfactory contact force.
• connection piece When the conductive piece is intended to receive ends of wires which all have the same diameter, it is possible to adapt the shape of the connection piece so that by choosing a material having good, even excellent qualities electrical, good stripping and optimized contact force are achieved.
• the object of the present invention is therefore to provide a connection device which does not require the use of an expensive material while allowing satisfactory and even very satisfactory electrical and mechanical properties to be obtained in order to allow good connection of wires of different diameters. .
• This device will advantageously allow the connection of a wire using a screwdriver.
• connection device for electric wire comprising a stripping and retaining slot made on a conductive connection piece and having two substantially parallel edges as well as a mouth allowing the introduction of a wire to strip.
• the invention comprises a bearing surface intended to receive at least one wire to be connected and arranged perpendicular to the direction of the stripping and retaining slot opposite the mouth thereof; guide means are provided to allow relative movement of the bearing surface relative to the connection piece, substantially parallel to the stripping and retaining slot and, means are provided to hold and possibly tighten one towards the other the two edges of the slot, after the introduction of a wire into the stripping and retaining slot, these means being arranged near the mouth once the wire is connected.
• connection piece is made of a material which is a good conductor, while the holding and possibly clamping means are made of a mechanically resistant material which gives the mechanical rigidity necessary for the connection device to make a good electrical connection. Thanks to the holding and possibly clamping means, this new self-stripping connection device accepts, in a given range, wires of substantially different diameters. For wires of smaller diameter, maintaining the edges of the slot at the mouth is sufficient, while for wires of larger diameter, tightening will be necessary to ensure good electrical contact.
• the device comprises a self-stripping lyre as well as a plate facing the mouth of the lyre, a slot being provided in the plate so that during a relative movement of the plate and the lyre, a wire to be connected placed between the lyre and the plate is pushed by the plate between the edges of the stripping and retaining slot of the self-stripping lyre and then the lyre, at the mouth of the slot, comes into the slot by resting on the ends of the slot .
• the relative movement between the plate and the lyre can be a translational movement while in a second variant this movement will be for example a pivoting movement.
• the device in a second embodiment, it comprises a cage having a profiled housing intended to receive at least one wire to be connected and disposed transversely to the direction of the stripping and retaining slot at the level of the mouth of the latter, the housing has an opening allowing the passage and the guiding of the mouth of the stripping and retaining slot, guide means are provided to allow relative movement of the cage relative to the part connection, substantially parallel to the stripping and retaining slot and, the width of the housing is such that during the introduction of a wire into the stripping and retaining slot, the connecting piece comes to bear on the wall inside the cage.
• connection device provides that the housing has a guide opening for the opening of the stripping and retaining slot on two opposite side walls and that the guide means allow the cage to be guided relative to the connection piece so that the mouth can pass through the housing intended to receive the wire to be connected at least one transversely through.
• connection of a wire can for example be made using a screw actuated by a screwdriver.
• the cage is then for example a profiled cage of rectangular section intended to receive one or more wires.
• the connection piece In the position before connection, the connection piece is outside the cage, and the cage presents by example a tab extending away from the connection piece.
• a screw, extending perpendicular to the cage is then advantageously provided to push the cage, by means of the tab on the connection piece.
• the connection is then made for an outside operator as if it were making a screw connection, except that it is unnecessary here to strip the wire to be connected.
• the cage is a profiled cage of rectangular section having a first housing intended to receive one or more wires and a second housing, parallel substantially to the first, intended to receive a tool, such as for example a screwdriver shank ;
• the cage is pivotally mounted in an insulating housing;
• the connection piece is a piece having a curvature parallel to the path that the cage can travel and which is, in the position before connection, outside the cage, the slot extending perpendicular to the housings of the cage, and a notch is provided substantially at the center of curvature of the path that the cage can travel to receive an end of the tool making it possible to block the latter in order to serve as support during a pivoting operation of the cage.
• the screwdriver then serves as a lever to rotate the profile in which the wire to be connected is located towards the connection piece.
• the cage is for example a profiled cage of rectangular section intended to receive one or more wires, and in the position before connection, the connection piece is located at the inside the cage, the slot extending perpendicular to the wire to be connected to the number of at least one, the wire to be connected to the number of at least one lying between the mouth of the slot and a wall of the cage .
• connection it is then possible to make the connection using a screw and a screwdriver, as if a screw connection was made.
• the wall of the cage, opposite the mouth of the stripping and retaining slot then has for example a tapped hole in which there is a screw bearing on the connection piece, so that by screwing the screw , the connecting piece is pushed towards the wire to be connected to the number of at least one so that the latter engages in the stripping and retaining slot.
• An alternative embodiment provides that the neighboring walls of the wall on the side of which the wire to be connected is located, for example, has a guide groove for the connection piece, and that elastic means preload the cage in a position in which the opening of the stripping and retaining slot comes in abutment against the wall of the cage facing it.
• FIG. 1 is a perspective view of a first embodiment of a device according to the invention
• FIG. 2 is a perspective view of a second embodiment of a device according to the invention.
• FIG. 3 is a perspective view of a third embodiment of a device according to the invention.
• Figure 4 shows in perspective the cage of Figure 3 in another orientation
• FIG. 5 is a sectional view along the section line V-V of FIG. 3 on an enlarged scale
• FIG. 6 is a side view, corresponding to FIG. 5, a wire being connected
• FIG. 7 is a perspective view of a fourth embodiment of a device according to the invention.
• FIG. 8 is a sectional view along the section line VIII-VIII of FIG. 1,
• FIG. 9 is a view corresponding to the view in FIG. 8, the connection being made,
• FIGS. 10A to 10C are perspective views of a fifth embodiment of a device according to the invention during three connection steps
• FIGS. 1 1 A to 1 1 C are views corresponding respectively to the views of FIGS. 10A to 10C in longitudinal section along the section line XI-XI of FIG. 10A,
• FIGS. 1 2 and 1 3 are perspective views of a sixth embodiment of a device according to the invention respectively before connection of a wire and after connection of the latter
• Figure 14 is a view along arrow XIV of Figure 13
• Figure 15 is a perspective view of a seventh embodiment.
• Figure 1 shows schematically a first embodiment of a connection device according to the invention. It only represents the essential elements of the invention and is there to illustrate the principle thereof. The elements shown are of course intended to be mounted in an insulating housing. This figure shows a self-stripping lyre 1, a wire to be connected 3 and a plate 5 in which a slot 7 is made.
• the self-stripping lyre is in the form of a metal blade cut out and folded at one of its ends. It has a stripping and retaining slot 9 extending longitudinally relative to the metal blade. This stripping and retaining slot 9 opens at the folded end of the metal blade and then forms a flared mouth 11.
• the plate 5 faces the folded end of the metal blade forming the self-stripping lyre 1.
• the slot 7 has a length corresponding to the width of the blade forming the lyre 1. The slot 7 is made so that, when the plate 5 moves along arrow 13, in translation, towards the lyre 1, the folded end of the metal blade enters the slot 7.
• this wire is placed at the mouth 1 1 of the lyre 1 as shown in FIG. 1.
• the wire is then located between the lyre 1 and the plate 5.
• the plate 5 is lowered in the direction indicated by the arrow 13 so that it pushes the wire 3 into the stripping and retaining slot 9
• the folded end of the lyre then enters the slot 7 of the plate 5.
• the length of the slot 7 is such that during this operation, the outer edges of the folded blade come to bear at the ends of the slot 7 so avoid too large a gap at the stripping and retaining slot 9 and thus guarantee good stripping and good contact pressure between the edges of the stripping and retaining slot 9 and the conductive core of the wire 3
• the slot 7, according to the diameter of the wire 3, ensures so it the maintenance, that is to say a more or less important tightening, of the edges of the stripping and retaining slot 9 on the wire 3.
• the force exerted on the wire 3 is substantially perpendicular to the edges of the stripping and retaining slot 9. It is adjusted as a function of the length of the slot 7 and the width of the stripping and retaining slot 9. This force is achieved thanks to the slot 7 of the plate 5, which is independent of the lyre 1.
• FIG. 2 shows an alternative embodiment of the device shown in FIG. 1.
• the connection is made not by a translational movement but by a pivoting movement according to the arrow 1 5.
• a self-stripping lyre 1 However here its end is not folded but bent.
• This plate 5 is integrated into a pusher 17 intended to be actuated by the end of a screwdriver blade 19.
• the connection of a wire to be connected 3 is made by the same way as for the device of figure 1.
• the wire to be connected 3 is placed between the lyre 1 and the plate 5.
• the plate 5 and in particular its slot 7 is located substantially near the mouth 1 1 of the slot stripping and retaining 9, while remaining mobile and independent with respect to the lyre 1.
• FIGS 3 to 6 show a third embodiment of a device according to the invention.
• a self-stripping lyre 1 folded at one of its ends and having a slot 9 and a mouth 1 1.
• the plate of the previous embodiments is replaced by a part called cage 21.
• the latter is of parallelepiped shape. It has a first circular cylindrical housing 23 extending perpendicular to the plane of the folded end of the lyre 1 and intended to receive a wire to be connected 3.
• the cage 21 also has a second housing 25 in the form of a slot in the cage 21 in the extension of the folded end of the self-stripping lyre 1.
• a third housing 27, which is tapped, is provided for driving in translation and guiding the cage 21.
• Figures 5 and 6 show the connection device of Figure 3 in the mounted position in an insulating housing 29.
• Figure 5 shows in section the connection device in its insulating housing 29 before connection of the wire 3.
• the cage 21 is placed at the above the lyre so that the end of the folded part of the lyre 1 is hardly inserted into the housing 25 of the cage 21.
• the wire 3 is fully engaged in the housing 23.
• a screw 31 is screwed into the threaded housing 27. This screw 31 is mounted so that, when it is screwed in, the cage 21 is pushed back towards the lyre 1.
• the wire 3, trapped in the housing 23, then engages in the mouth 1 1 of the lyre then after being stripped at this mouth 1 1 comes into the stripping and retaining slot 9.
• the slot 25 in the form of a slot in the cage 21 is of a width such that the outer edges 33 of the lyre come to bear in the cage 21 in the connected position of FIG. 6.
• the width of this slot 25 is not not necessarily constant over the entire length thereof.
• the slot 25 can for example be narrowed at the bottom, towards the inside of the cage 21.
• FIGS. 7 to 9 A fourth embodiment of a connection device is shown in FIGS. 7 to 9.
• This device comprises a connection part 2, a cage 4, two wires to be connected 6 and 8, and a screw 10.
• the connecting piece 2 is obtained by cutting and bending a metal strip.
• a first part of the connection piece forms a blade 12. At one end of this blade 12 extend, perpendicular to this blade, from the longitudinal edges of this blade 12, tabs 14 which face each other. The two longitudinal edges 16 are thinned and folded towards the other tab 14. Two stripping and retaining slots are thus formed between the tabs. Opposite the blade 12, these stripping and retaining slots have a mouth flared 18.
• the cage 4 comprises a profiled part of rectangular section.
• the internal width of this profile allows to accommodate the connection piece 2 at the legs 14 leaving only a slight clearance between these legs 14 and the longitudinal walls of the profiled part 20.
• the profiled part 20 is a tubular part of elongated rectangular section.
• the stripping and retaining slots extend perpendicular to the axis of the profiled part 20 and parallel to the long sides of this profiled part.
• the internal height of the profiled part 20 corresponds substantially to the height of the connection piece 2 at the level of the tabs 14 increased by the diameter of the wires 6 and 8.
• a cover 22 is provided on the cage 4 to allow delimitation of a housing reserved for wires to connect 6 and 8.
• a short side of the profiled part 20 of the cage 4 is thus on the side of the connection piece 2 and the other short side of the profiled part 20 of the cage 4 is on the side of the wires to be connected.
• the cage On the side of the connection piece 2, the cage has a tapped hole 24 in which the screw 10 takes place. On the side opposite to the side on which the tapped hole 24 is made, there is an opening allowing passage and guiding legs 14.
• the screw 10 has a head 26 which abuts against a wall 28 of an insulating housing containing the connection device shown in FIGS. 7 to 9.
• a wire or two wires 6 and 8 as shown in Figures 7 to 9, are introduced into the cage parallel to the axis of the profiled part 20 of this cage.
• the wires 6 and 8 are placed in the housing reserved for them in the cage 4.
• the stripping and retaining slots of the connection piece 2 then extend perpendicularly to the wires to be connected 6 and 8.
• the screw 10 is screwed in. This screwing results in a translational drive from the cage 4 towards the housing wall 28.
• the rod of the screw enters the cage 4 and pushes the connection piece on the wires 6 and 8.
• the latter then penetrate between the tabs 14 thus locally causing their stripping.
• the tabs 14 come to bear on the longitudinal walls of the profiled part 20.
• This profiled part is advantageously made of steel to ensure sufficient strength.
• the connection piece, for its part, is for example made of a copper-based alloy to guarantee good electrical conduction.
• the free ends of the legs 14, at the mouths 18, come against the wall opposite the wall provided with the threaded hole 24.
• the stroke of the cage 4 is sufficient for the mouths 18 to pass through this wall. This is possible thanks to the openings made in it.
• the passage of the mouths 18 in the passage and guide openings made in the wall of the profiled part 20 makes it possible to keep the tabs 14 in electrical contact with the wires 6 and 8. If these wires are wires of fairly large diameter, they will tend to spread the tabs 14.
• the passage of the mouths 18 in the guide openings then makes it possible to possibly tighten the tabs 14 towards one another so as to ensure good electrical contact.
• an independent piece of the blade 12 and the connecting piece 2 (which can therefore easily be made of another material) provides the wires 6 and 8 with a holding or clamping force perpendicular to the edges. stripping and retaining slots and allows the connection of wires of different diameters with always good electrical contact.
• FIGS 10A to 10C and 1 1 A to 1 1 C show an alternative embodiment of the device shown in Figures 7 to 9.
• the parts of this fifth embodiment similar to the component parts of the connection device of the fourth embodiment will use the same references increased by the number 100.
• connection piece 102 a connection piece 102, a cage 104, a wire 106 and a screw 1 10.
• the connection piece also has a blade 1 12 and lugs 114.
• a longitudinal edge 1 16 of each tab 1 14 is folded towards the other tab 1 14 so that there is only one stripping and retaining slot 130.
• This slot 130 has a mouth 1 18.
• connection piece 102 is placed outside the cage 104.
• the dimensions of the cage 104 are smaller than those of the cage 4.
• there is the same interior width of the cage 104 namely that this width corresponds to the width of the connection piece 102 at the legs 114 increased by a slight play.
• the wire 106 when the wire 106 is in the slot 130, it tends to spread the lugs 1 14 from one another and these can then bear on the longitudinal walls of the profiled part 120 thus avoiding excessive deformation of the tabs 1 14 and guaranteeing good retention or tightening of the edges of the stripping and retaining slot 1 30 on the wire 106.
• the length of the rectangular section of the profiled part 120 of the cage corresponds therefore substantially at the place necessary to accommodate one or more wires to be connected.
• the profiled part 1 20 has on two opposite sides openings 1 32 allowing the passage and the guiding of the legs 1 14. Thus, these legs 1 14 can pass through the profiled part 1 20 right through.
• the cage 104 also has a tab 134 folded at its end which thus serves as a support for the screw 1 10 which extends parallel to the stripping and retaining slot 1 30 but, relative to the cage 104, on the side opposite to the connecting piece 102.
• Figures 10A and 1 1 A show the connection device before the connection operation.
• the wire 106 is introduced into the profiled part 1 20.
• the mouth 1 1 8 of the stripping and retaining slot 130 is located just at the level of a guide opening 132.
• the rest of the connecting piece 102 is outside the cage 104.
• the head 126 of the screw bears against the wall 1 28 of the housing.
• FIGS 10B and 1 1 B show the device being connected.
• the screw was turned using a screwdriver not shown.
• the lugs 1 14 of the connecting piece 102 penetrate into the cage 104 and the insulating sheath of the wire to be connected 106 is started at the mouth 1 18 of the stripping and retaining slot 1 30.
• the fact that this mouth 1 1 8 is flared allows good centering of the wire relative to the slot 130.
• Figures 10C and 1 1 C show the device at the end of connection.
• the screw 1 10 is at the end of its travel and it has pushed the cage 104 completely through the lug 134 on the connection piece 102 which passes right through the cage 104 passing through the openings 132.
• the lugs 1 14 of the connecting piece 102 are then perfectly maintained and thus ensure good electrical contact with the conductive core of the wire 106, whatever the diameter of this wire (in a given range).
• Figure 1 5 shows an alternative embodiment approaching the embodiment of Figures 7 to 9.
• the parts of this alternative embodiment similar to the component parts of the connection device represented in FIGS. 7 to 9 bear the same references but increased by 200.
• the cage 204 is under the action of a spring which can be compressed using a screwdriver 236.
• connection piece having a stripping slot 230 with a mouthpiece 218 placed inside a profiled part 220 The relative positioning of the connection piece 202, the cage 204 and the wire 206 is unchanged.
• the cage 204 is guided on the connection piece 202 by means of longitudinal slots 238 produced on the long sides of the profile 220.
• the cage 204 is subjected to the action of a spring 240.
• This spring 240 acts so that the wire 206 comes to bear against the mouth
• the screwdriver 236 acts on the cage 204 against the action of the spring 240 by compressing it.
• the wire 206 can then be introduced between the wall of the profiled part 220 having a guide opening and the mouth 218 of the connection piece 202.
• the spring then comes to press the wire 206 in the mouth 218 then in the slot
• FIGS. 12 to 14 show a seventh embodiment of a connection device according to the invention.
• the connection of a wire to be connected is made here by a pivoting movement, as for the second embodiment ( Figure 2).
• connection piece 42 a cage 44, a wire to be connected 46, an insulating box 48 and a screwdriver 50.
• the connecting piece 42 is here a folded metal blade and in which a slot 52 has been produced by cutting. At this slot 52, the connection piece 42 has a rounded shape.
• the cage 44 is in the form of two sections 54 and 56 the first section 54 is intended to receive the wire 46. It extends along an axis substantially transverse to the slot of the connection piece.
• the second profiled part 56 is adjacent to the first and is intended to receive the rod of the screwdriver 50.
• the cage 44 is guided in the insulating housing 48 along a curved path having the same curvature as the blade of the connection piece 42 at the level of the slot 52.
• a guide rail 58 is provided in the housing 48 to guide the the cage 44.
• the profile 54 has an opening 60 for passage and guide to allow the end of the connection piece 42 to penetrate the side of the slot 52 inside this profile.
• a housing whose size is adapted to the end of the connecting piece 42 on the side of the slot 52 is provided in the wall of the profile 54 opposite the wall in which the opening 60 is made. We do not see in the drawing this accommodation.
• the connecting piece 42 has a notch for receiving the free end of the screwdriver 50. This notch is placed substantially in the center of curvature of the rounded part of the connecting piece 42 which is substantially coincident with the center of curvature of the path that the cage 44 can travel.
• the wire 46 is introduced into the profile 54 while the connection piece 42 is located outside the cage 44.
• the screwdriver 50 is in turn introduced into the profile 56 until that its end comes to bear in the notch 62.
• the screwdriver 50 can then tilt the cage 44 towards the connection piece 42.
• the latter then penetrates inside the profile 54 and the wire 46 is housed in the slot 52 while being locally stripped.
• the end of the connection piece 42, on the side of the end of the slot 52 is placed in the housing provided for this purpose and not visible in the drawing. This keeps the free ends of the connection piece and tightens the edges of the slot 52 on the conductive core of the wire 46.
• the profile 54 which corresponds to the width of the connection piece 42 at the level of the slot 52 increased only by a small clearance.
• connection devices which do not require the use of expensive material. These connection devices decouple the mechanical and electrical functions.
• the connection piece provides a good electrical connection while the plate or the cage provides good rigidity allowing a force at the contact points sufficient for good electrical contact in a given range of diameters of wires to be connected.
• a connection device makes it possible to produce a self-stripping connection by carrying out a screwing movement. This screwing movement is a usual movement for an operator who is used to making electrical connections. In fact, a number of fittings are screw fittings. The advantage here compared to most screw connections, is that there is no need to strip the wire to be connected before making its connection.
• the devices described above make it possible to connect wires of various diameters. It is possible in a device to connect either a relatively large diameter wire or two smaller diameter wires. For wires of smaller diameter, it is important that the opening of the stripping slot is guided at the end of the connection to guarantee sufficient mechanical pressure between the edges of the stripping slot and the conductive core of the connected wire. It goes without saying that the invention is not limited to the embodiments described above by way of nonlimiting examples; on the contrary, it embraces all variants thereof within the scope of the claims below.

Landscapes

• Connections Arranged To Contact A Plurality Of Conductors (AREA)
• Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
• Multi-Conductor Connections (AREA)
• Coupling Device And Connection With Printed Circuit (AREA)

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• 1999
  • 1999-04-12 FR FR9904684A patent/FR2792119B1/fr not_active Expired - Lifetime
• 2000
  • 2000-04-05 ES ES00917127T patent/ES2226807T3/es not_active Expired - Lifetime
  • 2000-04-05 EP EP00917127A patent/EP1169751B1/de not_active Expired - Lifetime
  • 2000-04-05 WO PCT/FR2000/000857 patent/WO2000062373A1/fr active IP Right Grant
  • 2000-04-05 EP EP03024797A patent/EP1408583B1/de not_active Expired - Lifetime
  • 2000-04-05 DE DE60014346T patent/DE60014346T2/de not_active Expired - Lifetime

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