EP1860735B1 - Terminal block for electrical conductors - Google Patents

Terminal block for electrical conductors Download PDF

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Publication number
EP1860735B1
EP1860735B1 EP07107549A EP07107549A EP1860735B1 EP 1860735 B1 EP1860735 B1 EP 1860735B1 EP 07107549 A EP07107549 A EP 07107549A EP 07107549 A EP07107549 A EP 07107549A EP 1860735 B1 EP1860735 B1 EP 1860735B1
Authority
EP
European Patent Office
Prior art keywords
segment
socket
block according
bar
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP07107549A
Other languages
German (de)
French (fr)
Other versions
EP1860735A1 (en
Inventor
Laurent Fleury
Daniel Paulin
Alain Baillet
Patrick Hauchard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Legrand SNC
Legrand France SA
Original Assignee
Legrand SNC
Legrand France SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR0651883A external-priority patent/FR2901418B1/en
Application filed by Legrand SNC, Legrand France SA filed Critical Legrand SNC
Priority to PL07107549T priority Critical patent/PL1860735T3/en
Publication of EP1860735A1 publication Critical patent/EP1860735A1/en
Application granted granted Critical
Publication of EP1860735B1 publication Critical patent/EP1860735B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks
    • H01R9/26—Clip-on terminal blocks for side-by-side rail- or strip-mounting
    • H01R9/2675—Electrical interconnections between two blocks, e.g. by means of busbars
    • 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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/48185—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end
    • H01R4/4819—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar adapted for axial insertion of a wire end the spring shape allowing insertion of the conductor end when the spring is unbiased
    • H01R4/4821—Single-blade spring
    • 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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/4846—Busbar details
    • H01R4/485—Single busbar common to multiple springs
    • 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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/4809—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a leaf spring to bias the conductor toward the busbar
    • H01R4/484—Spring housing details
    • H01R4/4842—Spring housing details the spring housing being provided with a single opening for insertion of a spring-activating tool

Definitions

  • terminal blocks are used, in particular in the electrical cabinets, to electrically connect two or more electrical conductors together.
  • junction blocks are known to engage a ⁇ conductor rail, provided with an insulating housing having two main faces (one partially open and the other closed) and side faces connecting the main faces.
  • this housing are provided two conduits for introducing portions of ends of electric cables and a receiving housing of a subassembly formed of a conductive strip and two spring blades.
  • the bars of such subassemblies comprise two cells for receiving the end portions of the electric cables, each cell being delimited by surfaces of which one form a seat.
  • Each leaf spring has two branches connected to one another by a curved section.
  • each spring blade The end portions of the two branches of each spring blade are previously engaged in the corresponding cell to form the subassembly to be introduced into the receiving housing by the open face of the housing.
  • each cable introduction duct formed in the housing opens into a corresponding cell of the bar.
  • Each leaf spring is adapted to deform to leave the end portion of a cable, when engaged in said cell, to fit between the seat and an end edge of the leaf spring and, if the cable is then urged to be removed from the block, to wedge the end portion of the cable between the seat and the end edge.
  • busbars provided with several openings each surrounded by tabs delimiting a cell in which are engaged the two branches of a leaf spring.
  • the offset of the section provided with a stop outside and at a distance from the cell allows the leaf spring to cooperate with the bar under more favorable mechanical conditions than in the case where the end portions of the two branches of the blade spring are inserted into the cell.
  • the insertion force of an electric cable is reduced here, thus improving the comfort of use, while being sufficient to ensure good electrical contact.
  • the inclination of the ear in the direction of the cell makes it possible, by cooperation with the spring blade, to take up the majority of the forces exerted on this blade in the presence of a conductor in the cell, the blade spring coming to press against the corresponding ear so that the blade does not come to lean excessively against the insulating housing when it is requested by the driver.
  • the main mechanical forces transverse to the bar are thus exerted essentially at the level of the ear and not at the level of the insulating casing which ensures a better reliability and an improved safety of use.
  • leaf spring and the terminal block of the block according to the invention it is even possible for example, when implementing the Preferred features discussed below, to mount separately in the insulating housing the spring blade and the bar.
  • the pre-assembly between the bar and the spring blade to form the subassembly is no longer required, it is possible to achieve a successive assembly within the housing of the spring blade and the bar.
  • the partial closure of the common area to the introducer duct and the reception housing is made possible by the fact that the spring blade is assembled regardless of the bar. It is thus made possible, firstly, to introduce the spring blade into the housing through the open portion of the housing and then, in a second step, to move the spring blade to accommodate a portion of this blade in the partially closed common area and finally, in a third time, to assemble the bar to maintain in position the spring blade thus disposed.
  • the partially closed zone common to the introduction duct and the receiving housing thus makes it possible to ensure optimal guiding of the end portion of the cable towards the cell during its insertion thus preventing the end portion of the cable, in particular in the vicinity of the cell, to escape from the terminal block transversely to the main faces of this block.
  • the presence of the pin facilitates the installation of the spring blade in the partially closed zone by acting as a support around which the spring blade pivots to be placed in position in the introduction conduit.
  • the additional pin plays the role of stop pin to limit the movement of the first branch of the spring blade.
  • the terminal block 1 represented in Figures 1 to 12 comprises an insulating housing 2, a conductive bar 3 and two spring blades 4.
  • the insulating casing 2 is made of molded plastic and has two main faces 5 and 6 connected to each other by a front lateral face 7, a rear lateral face 8, an upper face 9 and a lower face 10.
  • the face 6 is completely obscured by a partition 22 while the face 5 is partially open.
  • This housing comprises a latching lug 15, a latching tab 16 to a ⁇ rail, two cable introduction ducts 32, two operating ducts 33 and a receiving housing 39 (FIG. figure 3 ) of the bar 3 and leaf springs 4.
  • the tabs 15 and 16 are located on the side of the face 8. Between these tabs extends a slot 17 formed inside the housing 2 and opening at the face 8.
  • the hooking lug 15 has two identical portions 19 on either side of the slot 17, each portion presenting opposite the leg engaging a recess 20 adapted to receive as will be seen hereinafter a wing of a rail in ⁇ .
  • the latching lug 16 has three partitions 25, 26 and 27 extending substantially transversely to the face 8.
  • the partition 25 closest to the latching lug is separated by the slot 17 in two identical portions 18.
  • Each portion 18 has a tooth 24 projecting towards the hooking lug 15.
  • the housing also comprises between the legs 15 and 16 two partitions 21 on either side of the slot 17 extending parallel to the faces 5 and 6 of the partition portions 19.
  • the conduits 32 ( Figures 7 and 8 ) are delimited by two concave surfaces 47 and the surface of a partition 48 located on the side of the face 6 and having a shoulder 48 '.
  • the conduits 32 open on the face 7 through an opening 45 and on the face 5 through an opening 43.
  • the opening 43 has two parallel edges 43 'in the direction of insertion of the cable and a curved edge 43 ".
  • Each duct 32 is closed at the main faces by two triangular partitions 34 projecting parallel to the faces 5 and 6 towards the inside of the housing.
  • One of these partitions 34 is located at the partially open face 5 and the other against the wall 22 closing the face 6 of the terminal block ( figure 9 ) locally forming an extra thickness.
  • the partition 34 located on the side of the face 6 is extended by a corner 42 ( figure 9 ).
  • the conduits 33 have a rectangular section and open only on the face 7 through an opening 46.
  • the receiving housing 39 of the bar 3 and the leaf springs 4 is partially delimited by a pair of closed-contour ribs 30 and a pair of closed-contour ribs 31 ( figure 3 ).
  • the area of the housing 39 adapted to receive the bar is partially delimited by the rib sections 30 ", 31"'and the lower edge on the figure 3 partitions 34 while each zone of the housing 39 adapted to receive a leaf spring 4 is partially delimited by the rib sections 30 ', 31', 31 "( figure 4 ) and includes space 44 ( figure 7 ) located between the two corresponding partitions 34.
  • each zone of the receiving housing 39 adapted to receive a leaf spring 4 is a cylindrical pin 40 and an oblong pin 41.
  • the space 44 located between two partitions 34 is common to the corresponding conduit 32 and the housing 39.
  • the receiving housing 39 is thus, at each end, partially obscured on the face 5 by a partition 34.
  • the casing is molded using three drawers, one for each pair of ducts 32, 33 and a third to form the slot 17.
  • the bar 3 comprises a central step 50 ( figure 7 ) and on each side of the central step a side step 51, each side step being connected to the central step by a riser 52 at right angles to the central step 50 and the side steps 51 so that each step 51 forms with its riser 52 a portion in L.
  • the side steps 51 are located at the same level relative to each other so that the bar has a podium profile.
  • the central step 50 has at its center a single orifice 63 while each side step 51 is provided with a cell 54 delimited by the surfaces of a stamped cage 55 projecting from the opposite side to the central step 50.
  • the spring blades 4 represented in Figures 1 to 10 have an asymmetrical V-shaped profile, each leaf spring being formed of a large straight branch 58 and a small straight branch 59 connected to one another at one end by a curved section 60.
  • Each of the branches 58 and 59 has, at about mid-length, a width change, with their width being smaller between their free end and the width changing zone.
  • This assembly consists first of all in arranging each leaf spring 4 in the receiving housing 39.
  • the curved section 60 of each leaf spring 4 is arranged around the pin 40 in the space in the vicinity of this piece on the opposite side to pawn 41 ( figure 3 ).
  • the large branch 58 then takes place between the corresponding pins 40, 41 and the corresponding partitions 34 while the small branch 59 takes place between the corresponding pins 40, 41 and the corresponding rib 30 '( figure 3 ).
  • the next step is to rotate each leaf spring 4 around the corresponding pin 40, parallel to the faces 5 and 6, so that the end portion of the long section 58 of the spring blade is placed in the space 44 between the partitions 34 ( figure 4 ), this section being guided towards this space by the ramp formed by one of the surfaces of the corner 42 ( figure 9 ), until it stops against the housing ( figure 4 ).
  • the end portion of the branch 58 is thus housed in the corresponding introduction conduit 32.
  • the blade thus disposed releases the area of the housing 39 adapted to accommodate the bar 3 so that it is now possible to introduce this bar in the housing.
  • the central step 50 is arranged between the sections of ribs 30 "and 31 '" of the insulating casing while the end portions of the side steps 51 are housed under the partitions 34 ( figure 5 ).
  • the conduit 32 thus opens into the cell 54.
  • a wall 56 of the cage 55 is then disposed under the end edge 61 of the branch 58 of the corresponding spring blade while the end portion branch 59 looks, on the side opposite the branch 58, the riser 52 ( Figures 5 and 6 ).
  • the last operation consists, using a tool or a rigid core cable through the conduit 32 or 33, to come to exert pressure against the branch 58 to abut the branch 59 against the riser 52 and thus bend the branch 58 to cross a hard point relative to the bar 3 so as to have the end edge 61 of this branch in the cell 54, against the surface 57 of the wall 56 of the cage 55 ( figure 7 ).
  • Such tips are for example used in conjunction with cables whose conductive core is formed of flexible strands to facilitate the introduction of conductors in the terminal block without the risk of folding the flexible strands.
  • tips (70) comprise a hollow and conductive hollow cylindrical element 71 crimped around the stripped end of a conductor (not shown) and an insulating plastic casing 72.
  • the first operation is to penetrate the tip 70 through the conduit 32 in which it must be inserted in order to constrain the leaf spring by pressing the leg 58 to move away the end edge 61 ( figures 6 and 7 ) of the surface 57 to allow this element to pass between this edge 61 and the wall 56.
  • the wiring end-piece 70 is thus introduced into the duct 32, the driving movement of the cable continuing for example until the end of the element 71 comes into abutment against the ridge section 31 'or until that the envelope 72 abuts at the level of the face 5 against the curved edge 43 'of the partition 34 or, at the level of the face 6, against the shoulder 48' of the partition 48.
  • this wall forms for the element 71 a seat against which it is held by the spring blade 4 which plate against this surface. If this element once installed in the terminal block 1 tends to be removed from the block, that is to say if it is subjected to a force directed in a direction contrary to the direction of insertion, this element will tend to bring with it the branch 58, which will bend and thus wedge against the wall 56, which will prohibit the removal of this element.
  • the operator For the withdrawal of the tip 70, the operator makes it through the conduit 33 corresponding to the conduit 32 into which is inserted the nozzle 70, a tool (for example the flat end 73 of the screwdriver shown in FIG. figure 8 ) in order to constrain the spring blade, until the branch 58 eventually abuts against the oblong pin 41, to release the element 71 and allow to extract the tip 70.
  • a tool for example the flat end 73 of the screwdriver shown in FIG. figure 8
  • the branch 58 eventually abuts against the oblong pin 41, to release the element 71 and allow to extract the tip 70.
  • Such terminal blocks are generally identified by their color, the insulating housing of these blocks being tinted in two colors, one yellow and the other green (green / yellow block).
  • the contact foot 80 illustrated in Figures 13 and 14 is made of conductive metal and is formed in one piece. It comprises a central body 81, a hooking tab 82, and a locking tab 83.
  • the central body 81 has two generally rectangular portions 84 and 85, the portion 84 being wider than the portion 85.
  • the portion 84 attaches the tabs 82 and 83 to the rectangular portion 85.
  • This portion 85 has at its top two protruding teeth 86 on the side opposite the portion 84 while in the portion 84 is formed a rectangular window 87.
  • the locking tab 83 has at its distal end a rigid notch 88 and an elongated and flexible narrow arm 91 attaching the notch 88 to the body 81.
  • This notch 88 has a tooth 90 and a finger 77 having a ramp surface 89 and a boss 78.
  • the arm 91 is of constant width except for its end portions which are slightly curved, each respectively reaching, by flaring, the notch 88 and the body 81.
  • the hooking lug 82 comprises a hook 92 adapted to receive, as will be seen below one of the wings of a rail in ⁇ and an elongated and flexible narrow arm 76 joining the hook 92 to the body 81 by attaching to the hook 92 on the opposite side of the hook 81 to the body relative to the notch 93.
  • the arm 76 comprises a C-section 94, here more precisely in a half-circle, in the hollow of which is housed the hook 92 and an inclined straight section 95.
  • the C-section 94 is connected at one end to the hook 92 and at the other end to the straight inclined section 95 itself connected by its opposite end to the body 81 so that the arm 76 has a profile in J.
  • the hook 92 comprises a rigid block 79 in which is formed a notch V 93.
  • the leg of the block 79 defining the notch V located on the side of the hook opposite the body 81 relative to the notch 93 is attached to the arm 94 of the leg 82.
  • the contact foot is introduced into the junction block on the side of the face 8 by the slot 17 extending from the latching lug 15 to the latching lug 16 of the insulating housing 2.
  • the body 81 enters the insulating housing between the rib portions 31 "", the portion 85 first until a tooth 35 ( figure 11 ) of the insulating housing, protruding from the partition 21 located on the side of the face 5 towards the inside of the housing, is snapped into the square-shaped orifice 87 of the body 81, the slots 23 formed in this partition 21 ensuring an elastic deformation of the tooth 35.
  • the hook 92 of the hooking tab 82 of the contact foot is housed between the two partition portions 19 of the tab 15, so that the notch 93 is between the two recesses 20 while the notch 88 of the engagement tab 83 is housed between the two partition portions 18, between the teeth 24 ( figure 11 ).
  • the teeth 86 of the foot 80 are arranged in the opening 63 of the step 50 and protrude with respect to the bar towards the face 7 ( figure 11 ).
  • a crimping operation is performed using a tool (not shown) adapted to be introduced into the housing on the side of the face 7 by two chimneys 37 ( figure 10 ) formed in the insulating housing on each side of a central wall 38 and opening on the face 7 to exert pressure against the surfaces 96 of the teeth 86 to move them away from each other as illustrated in FIG. figure 10 .
  • This crimping makes it possible to guarantee the permanent mechanical maintenance of the contact foot 80 with the bar 3 and improves, by increasing the clamping pressure with this bar, the quality of the electrical contact between this foot and this bar.
  • the engagement of the terminal block is here described in the case where it has a contact foot.
  • the interlocking characteristics of the insulating housing alone remain the same when the terminal block does not have such a contact foot (no electrical connection to the rail).
  • the conductive support rail 65 shown on the Figures 15 to 18 is a profile rail commonly used to install terminal blocks. It has a central section 66 and two branches 67 folded at right angles, the ends of the branches 67 being bent at right angles outwards to form two lateral wings 68, the section of the profiled rail thus having a shape in ⁇ (reversed on the figures).
  • This rail can be fixed (for example by screwing the portion 66) to the uprights of an electrical cabinet or against a wall support, the central section 66 and the wings 68 then being in a vertical plane (rotated 90 ° relative to the Figures 17 and 18 ).
  • the interlocking operation consists of hooking the terminal block against one of the wings 68 of the ⁇ rail as illustrated in FIG. figure 15 by introducing this wing into the notch 93 of the hooking tab 82 of the contact foot (shown without the insulating housing in figure 17 for the sake of clarity) as well as in the recess 20 of the attachment lug 15 of the insulating housing ( figure 15 ).
  • the next step is to simultaneously engage the interlocking tab 83 ( figure 18 ) of the contact foot and the locking tab 16 ( figure 16 ) of the insulating housing on the other flange 68 of the ⁇ rail.
  • the operator presses the terminal block against the face 7 towards the rail in ⁇ and preferably, to take advantage of the leverage, the farthest side of the tab 15.
  • This action causes a deformation of the arm 82 until the engagement tab 83 is supported by the ramp 89 of the finger 77 against the upper edge of the wing 68 corresponding.
  • the ramp 89 thus guides the foot 80 which deforms until this ramp passes under the wing 68, the tooth 90 abutting against this wing ( figure 18 ).
  • the boss 78 located at the end of the ramp 89, under the tooth 90 ensures the stable maintenance of the contact foot rail, preventing any risk of inadvertent disengagement.
  • the long length of the sections 94 and 95 ensures optimum flexibility for the arm 76 which deforms throughout this operation.
  • the engagement lug 16 of the insulating housing engages in a similar manner on the same flange, each tooth 24 being supported by its curved surface 28 ( figure 15 ) against the upper edge of the corresponding flange 68 to guide the flap 16.
  • the partitions 25 to 27 of this tab slightly deform transversely to the rail so that each tooth 24 engages and closes under this wing by elastic return ( figure 16 ).
  • a connection to the ⁇ rail is made in the same way except that such a terminal block is engaged to the rail only by the legs of the rail. hooking and engagement of the insulating housing. Such an operation then in this case not to provide an electrical connection but only to ensure mechanical support of the terminal block to the rail.
  • the rail 165 represented in figure 19 and the rail 265 shown in figure 20 differ from the rail 65 represented in figure 17 especially by the height and thickness of their branches and their wings.
  • the V-shaped notch 93 and in particular the distance to the bottom of the notch separating the two branches of the V is adapted to cooperate with the three types of rail illustrated, that the wings of these rails is of constant thickness ( rail 65) or that this thickness decreases towards the edge of the wings (rails 165 and 265).
  • This partition 97 ( Figures 21 to 23 ) has two notches 99, two pins 98 and two ribs 96 projecting from the same side of the partition 97.
  • Each notch 99 has a contour similar to that of the opening 43 of the conduit 32 corresponding. Each notch is thus delimited by two straight edges 99 'parallel to the direction of insertion of the cable and an edge 99 "transverse to this direction joining the straight edges 99'.
  • This partition is nested at the junction block 1 by disposing the partition 97 facing the face 5 of the junction block 1 so that the lugs 98 of this partition are engaged in mortises 29 that presents the insulating housing 1 of the block of junction ( figure 22 ), the rib 96 then being housed within the rib 31 to increase the length of the vanishing lines of the terminal block.
  • each duct 32 of the terminal block has an opening 43 through which a wiring end can project laterally, in particular if the largest diameter of this endpiece is greater than the distance separating the main faces 5 and 6 (also called step of the terminal block), neglecting the thickness of the partition 48 closing the conduit 32 at the face 6.
  • the thickness of the partition 48 is relatively small so that it is considered that it is a negligible magnitude before the pitch of the terminal block.
  • larger diameter is used here to mean that of the diameters of the element of the endpiece which has the largest dimension, for example, in the case of the endpiece 70, the diameter of the envelope 72.
  • each terminal block then come to bear, by its face 6 not against the protruding portion of the cable end received in the adjacent terminal block but against the partition 97 of this neighboring block.
  • the convex faces 47, the partition 48 and the shoulder 48 'and the edges 43' and 43 are dimensioned together with the partition 97 to ensure that, even for a wiring end having a larger diameter equal to the diameter. maximum that can be received in the conduit, the portion of this nozzle projecting from the block through the opening 43 of the conduit can be fully housed in the opening 99 of the partition 97 without protruding from this partition.
  • the junction block has a pitch of 5 mm and the ducts 32 are adapted to receive wiring nozzles of greater maximum diameter equal to 6 mm, while the partition 97 has a thickness of 1 mm. so as to accommodate in each aperture 99 the portions of the end pieces projecting from the block up to a maximum diameter of 6 mm (ie a maximum lateral projection of about 1 mm with respect to the terminal block).
  • a tip of larger diameter greater than 6 mm can not be introduced into the ducts 32, these ducts being shaped so that such an endpiece abuts against the edges of the opening 45 and thus prevent its insertion.
  • FIG. Figures 24 to 28 Another embodiment of the terminal block is shown in FIG. Figures 24 to 28 .
  • the pins 140 and 141 are joined, the end of the pin 140 forming a finer finger than the pin 40 to reduce the bending force and ensure a better fit of the curved section 160 within the housing 102.
  • the rib portion 131 "' has a recess 136 facing the corresponding rib portion 130" and is thus adapted to cooperate snap-in as will be seen hereinafter with the bar 103.
  • the partition 122 is not located here at the face 106 but midway between the faces 105 and 106 (if not under the rib section 131 "') in order to lengthen the lines as much as possible. leakage between conductive elements.
  • the bar 103 has two bosses 149.
  • each leaf spring is arranged in the housing ( figure 24 ) then tour ( figure 25 ) to make room for the bar 103 ( figure 26 ).
  • the bosses 149 of this bar cooperate snap-fit with the recesses 136 to enhance the mechanical retention of the bar 103 to the housing 102 ( figure 26 ).
  • the offset located under the rib portion 131 "'of the wall 122 at the face 106 allows this section to be sufficiently deformable and elastic to snap the bar.
  • the branch 158 is then flexed to pass a point hard relative to the bar so that it comes opposite the wall 156 of the cage 155 ( figure 27 ).
  • the bar 103 of the block 101 has a window 163 so that this block can receive the contact foot 80 ( figure 28 ).
  • the bar 203 is rectilinear and has a central section 250, each end of which is connected to the end of a section 252. provided with an ear 253, one face forms, as will be seen hereinafter, a stop for a corresponding leaf spring 204.
  • the end of each section 252 opposite to that connected to the section 250 is connected to one end of a section 251 provided with a cell 254.
  • the sections 252 are connected in the extension of the neighboring section 251 and the central section 250.
  • Each lug 253 is inclined towards the corresponding cell 254, so that the ear forms with the rest of the section 252 closest to the cell 254 an acute angle.
  • the insulating housing 202 has under the rib 230 a finger 264 adapted to cooperate with the section 250 and the corresponding section 252.
  • the branch 259 comprises a straight section 269 and a straight section 262 connected to each other so that the branch 259 has a bent shape, with the section 262 which is turned on the opposite side at branch 258 and looking at the face of the ear 253 closest to the cell.
  • the branch 259 is here bent so as to cooperate effectively with the inclined lug 253 corresponding, the section 262 being disposed opposite it.
  • each lug 253 towards the corresponding cell 254 makes it possible to take back part of the forces exerted on the casing transversely to the lug by means of the leaf spring 204 when a conductor is inserted into the lug. alveolus.
  • the section 262 of the spring blade is pressed against the corresponding ear which thus takes up part of the forces so that the curved section 260 of this blade is less biased to move towards the face 207 and not therefore does not exert excessive pressure against the casing insulation at the wall of this housing located opposite the pin 240 relative to this section 260.
  • each lug 253 is connected to the remainder of the section 252 at a right angle and / or the force to be exerted to cross the hard point for each leaf spring to be arranged opposite the seat of the cell corresponding is very low or non-existent depending on the set of non-reproducible assembly of the different elements together (housing, blades, bar).
  • the terminal block is designed to receive not two but at least three conductors arranged on one or more stages of the terminal block.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Description

ARRIERE PLAN TECHNOLOGIQUEBACKGROUND TECHNOLOGY

On sait que de tels blocs de jonction sont utilisés, notamment dans les armoires électriques, afin de relier électriquement entre eux deux conducteurs électriques ou plus.It is known that such terminal blocks are used, in particular in the electrical cabinets, to electrically connect two or more electrical conductors together.

On connaît des blocs de jonction à engager sur un rail conducteur en Ω , munis d'un boîtier isolant présentant deux faces principales (l'une partiellement ouverte et l'autre fermée) et des faces latérales reliant les faces principales. Dans ce boîtier sont ménagés deux conduits d'introduction de portions d'extrémités de câbles électriques et un logement d'accueil d'un sous-ensemble formé d'une barrette conductrice et de deux lames ressort.Junction blocks are known to engage a Ω conductor rail, provided with an insulating housing having two main faces (one partially open and the other closed) and side faces connecting the main faces. In this housing are provided two conduits for introducing portions of ends of electric cables and a receiving housing of a subassembly formed of a conductive strip and two spring blades.

Les barrettes de tels sous-ensembles comportent deux alvéoles pour recevoir les portions d'extrémité des câbles électriques, chaque alvéole étant délimitée par des surfaces dont une forme un siège.The bars of such subassemblies comprise two cells for receiving the end portions of the electric cables, each cell being delimited by surfaces of which one form a seat.

Chaque lame ressort présente deux branches reliées l'une à l'autre par un tronçon incurvé.Each leaf spring has two branches connected to one another by a curved section.

Les portions d'extrémité des deux branches de chaque lame ressort sont préalablement engagées dans l'alvéole correspondante pour former le sous-ensemble à introduire dans le logement d'accueil par la face ouverte du boîtier.The end portions of the two branches of each spring blade are previously engaged in the corresponding cell to form the subassembly to be introduced into the receiving housing by the open face of the housing.

Dans ce sous-ensemble ainsi formé, pour chaque lame ressort, l'une des branches vient en appui contre le siège de l'alvéole correspondante tandis que l'autre branche est en appui contre la surface de l'alvéole opposée au siège.In this subset thus formed, for each leaf spring, one of the branches abuts against the seat of the corresponding cell while the other leg bears against the surface of the cell opposite the seat.

Lorsque ce sous-ensemble est disposé dans le logement d'accueil, chaque conduit d'introduction de câble ménagé dans le boîtier débouche dans une alvéole correspondante de la barrette.When this subassembly is disposed in the receiving housing, each cable introduction duct formed in the housing opens into a corresponding cell of the bar.

Chaque lame ressort est adaptée à se déformer pour laisser la portion d'extrémité d'un câble, lorsqu'il est engagé dans ladite alvéole, s'insérer entre le siège et une arête d'extrémité de la lame ressort et, si le câble est ensuite sollicité à être retiré du bloc, à coincer la portion d'extrémité du câble entre le siège et l'arête d'extrémité.Each leaf spring is adapted to deform to leave the end portion of a cable, when engaged in said cell, to fit between the seat and an end edge of the leaf spring and, if the cable is then urged to be removed from the block, to wedge the end portion of the cable between the seat and the end edge.

On connaît également par la demande de brevet allemand DE 199 40 971 , des barres collectrices munies de plusieurs ouvertures chacune entourée par des languettes délimitant une alvéole dans laquelle sont engagées les deux branches d'une lame ressort.It is also known from the German patent application DE 199 40 971 , busbars provided with several openings each surrounded by tabs delimiting a cell in which are engaged the two branches of a leaf spring.

OBJET DE L'INVENTIONOBJECT OF THE INVENTION

L'invention vise à fournir un bloc de jonction sûr, fiable et à la fois simple et commode à assembler. Elle propose à cet effet un bloc de jonction comportant :

  • une barrette conductrice présentant un tronçon muni d'une alvéole pour recevoir une portion d'extrémité d'un câble électrique, ladite alvéole étant délimitée partiellement par un siège ;
  • une lame ressort présentant une première et une seconde branche et un tronçon incurvé reliant l'une à l'autre lesdites première et seconde branches, ladite lame ressort étant adaptée à se déformer pour laisser ladite portion d'extrémité du câble, lorsqu'il est engagé dans ladite alvéole, s'insérer entre ledit siège et l'arête d'extrémité de ladite première branche et, si ledit câble est ensuite sollicité à être retiré dudit bloc, à coincer ladite portion d'extrémité du câble entre ledit siège et ladite arête d'extrémité ; et
  • un boîtier isolant présentant un logement d'accueil de ladite barrette et de ladite lame ressort et un conduit d'introduction de ladite portion d'extrémité du câble, ledit conduit d'introduction débouchant dans ladite l'alvéole ;
caractérisé en ce que ledit tronçon muni d'une alvéole appartient à une portion de ladite barrette, ladite portion présentant également un tronçon muni d'une butée dont une extrémité se raccorde à une extrémité dudit tronçon muni d'une alvéole et en ce que la portion d'extrémité de ladite seconde branche regarde, du côté opposé à ladite première branche, ladite butée de ladite barrette.The object of the invention is to provide a safe, reliable and easy-to-assemble and easy-to-assemble terminal block. It proposes for this purpose a terminal block comprising:
  • a conductive strip having a section provided with a cell for receiving an end portion of an electric cable, said cell being partially delimited by a seat;
  • a leaf spring having a first and a second branch and a curved section connecting said first and second branches to each other, said leaf spring being adapted to deform to leave said end portion of the cable, when it is engaged in said slot, inserted between said seat and the end edge of said first branch and, if said cable is then urged to be removed from said block, to wedge said end portion of the cable between said seat and said end edge; and
  • an insulating casing having a housing for receiving said bar and said leaf spring and a conduit for introducing said end portion of the cable, said introduction duct opening into said cell;
characterized in that said section provided with a cell belongs to a portion of said bar, said portion also having a section provided with an abutment whose one end connects to an end of said section provided with a cell and that the end portion of said second branch looks, on the opposite side to said first branch, said stop of said bar.

Ainsi lorsque la lame ressort est sollicitée à fléchissement lors de l'introduction de la portion d'extrémité d'un câble, l'effort exercé sur la première branche fait que la seconde branche vient contre la butée du tronçon de la barrette muni de cette butée. Le maintien en position de la seconde branche entraîne le fléchissement de la lame ressort de sorte que la première branche s'écarte du siège pour permettre l'insertion du conducteur.Thus, when the leaf spring is biased to bend during the introduction of the end portion of a cable, the force exerted on the first branch makes the second branch comes against the stop of the section of the bar provided with this stop. Holding the second limb in position causes the spring blade to deflect so that the first leg moves away from the seat to allow insertion of the conductor.

La présence d'un tronçon muni d'une butée sur la barrette permet ainsi de ne pas avoir à engager dans l'alvéole la lame ressort par ses deux branches, la portion d'extrémité d'une de ces branches étant disposée en regard du tronçon muni d'une butée de la barrette, en dehors de cette alvéole.The presence of a section provided with a stop on the bar thus makes it possible not to have to engage in the cell the spring blade by its two branches, the end portion of one of these branches being disposed opposite the section with a stop of the bar, outside this cell.

Le déport du tronçon muni d'une butée en dehors et à distance de l'alvéole permet de faire coopérer la lame ressort avec la barrette dans des conditions mécaniques plus favorables que dans le cas où les portions d'extrémité des deux branches de la lame ressort sont insérées dans l'alvéole.The offset of the section provided with a stop outside and at a distance from the cell allows the leaf spring to cooperate with the bar under more favorable mechanical conditions than in the case where the end portions of the two branches of the blade spring are inserted into the cell.

En particulier, l'effort d'insertion d'un câble électrique est ici réduit, améliorant ainsi le confort d'utilisation, tout en étant suffisant pour assurer un bon contact électrique.In particular, the insertion force of an electric cable is reduced here, thus improving the comfort of use, while being sufficient to ensure good electrical contact.

Selon des caractéristiques préférées, pour des raisons de simplicité, de commodité et d'économie de mise en oeuvre lors de l'assemblage :

  • ledit tronçon muni d'une alvéole et ledit tronçon muni d'une butée sont raccordés transversalement, ladite portion à laquelle appartiennent ledit tronçon muni d'une alvéole et ledit tronçon muni d'une butée étant une portion en L ;
  • ledit tronçon muni d'une alvéole et ledit tronçon muni d'une butée sont dans le prolongement l'un de l'autre ; et/ou
  • ledit tronçon muni d'une butée comporte, du côté opposé à ladite alvéole, une oreille dont la face la plus proche de ladite alvéole forme ladite butée.
According to preferred features, for reasons of simplicity, convenience and economy of implementation during assembly:
  • said section provided with a cell and said section provided with a stop are connected transversely, said portion to which belong said section provided with a cell and said section provided with a stop being an L-shaped portion;
  • said section provided with a cell and said section provided with an abutment are in the extension of one another; and or
  • said section provided with an abutment comprises, on the opposite side to said recess, an ear whose face closest to said recess forms said abutment.

Selon d'autres caractéristiques préférées, pour les mêmes raisons que celles indiquées ci-dessus :

  • ladite oreille est inclinée en direction de ladite alvéole ; et éventuellement
  • ladite seconde branche de ladite lame ressort présente une forme en coude adaptée à coopérer avec ladite oreille.
According to other preferred features, for the same reasons as those indicated above:
  • said ear is inclined towards said cell; and eventually
  • said second branch of said spring blade has a bend shape adapted to cooperate with said lug.

L'inclinaison de l'oreille en direction de l'alvéole permet, par coopération avec la lame ressort, de reprendre la majeure partie des efforts exercés sur cette lame en présence d'un conducteur dans l'alvéole, la lame ressort venant se plaquer contre l'oreille correspondante de sorte que cette lame ne vient pas s'appuyer excessivement contre le boîtier isolant lorsqu'elle est sollicitée par le conducteur.The inclination of the ear in the direction of the cell makes it possible, by cooperation with the spring blade, to take up the majority of the forces exerted on this blade in the presence of a conductor in the cell, the blade spring coming to press against the corresponding ear so that the blade does not come to lean excessively against the insulating housing when it is requested by the driver.

Les principaux efforts mécaniques transversaux à la barrette s'exercent ainsi essentiellement au niveau de l'oreille et non pas au niveau du boîtier isolant ce qui assure une meilleure fiabilité et une sécurité d'utilisation améliorée.The main mechanical forces transverse to the bar are thus exerted essentially at the level of the ear and not at the level of the insulating casing which ensures a better reliability and an improved safety of use.

Au surplus, avec la lame ressort et la barrette du bloc de jonction selon l'invention il est même possible par exemple, lorsque l'on met en oeuvre les caractéristiques préférées exposées ci-après, de monter séparément dans le boîtier isolant la lame ressort et la barrette.In addition, with the leaf spring and the terminal block of the block according to the invention it is even possible for example, when implementing the Preferred features discussed below, to mount separately in the insulating housing the spring blade and the bar.

Ainsi, selon des caractéristiques préférées, pour des raisons de simplicité, de commodité et d'économie de mise en oeuvre :

  • ladite lame ressort est adaptée à se déformer pour franchir un point dur par rapport à ladite barrette afin de disposer ladite arête d'extrémité de la première branche de ladite lame en regard dudit siège dans ladite alvéole.
Thus, according to preferred features, for reasons of simplicity, convenience and economy of implementation:
  • said spring blade is adapted to deform to cross a hard point relative to said bar in order to have said end edge of the first branch of said blade facing said seat in said cell.

Le passage du point dur pour disposer l'arête d'extrémité de la lame ressort en regard du siège fait qu'il n'est plus nécessaire de prédisposer aucune des deux branches de la lame ressort dans l'alvéole.The passage of the hard point to dispose the end edge of the blade spring facing the seat makes it no longer necessary to predispose any of the two branches of the spring blade in the cell.

Le pré-assemblage entre la barrette et la lame ressort pour former le sous-ensemble n'étant plus requis, il est possible de réaliser un assemblage successif au sein du boîtier de la lame ressort puis de la barrette.The pre-assembly between the bar and the spring blade to form the subassembly is no longer required, it is possible to achieve a successive assembly within the housing of the spring blade and the bar.

L'installation successive dans le boîtier de la lame ressort puis de la barrette assure ainsi un assemblage simple et facile.The successive installation in the housing of the blade then spring of the bar ensures a simple and easy assembly.

Selon d'autres caractéristiques préférées, pour des raisons de simplicité, de commodité et d'économie de mise en oeuvre à l'assemblage comme à l'utilisation :

  • ledit boîtier comporte deux faces principales reliées par des faces latérales, ledit conduit d'introduction présentant avec ledit logement d'accueil une zone commune au moins partiellement fermée au niveau des deux faces principales, la portion du logement d'accueil distincte de ladite zone commune étant au moins partiellement ouverte au niveau d'une desdites faces principales pour accueillir ladite barrette et ladite lame ressort ;
  • ladite zone commune débouche dans ladite alvéole et la portion d'extrémité de ladite première branche de la lame ressort est disposée dans ladite zone commune ;
  • ledit boîtier comporte un rampe de guidage de ladite portion d'extrémité de ladite première branche de la lame ressort vers ladite zone commune ; et/ou
  • ladite rampe appartient à un coin.
According to other preferred features, for reasons of simplicity, convenience and economy of implementation at assembly and use:
  • said housing comprises two main faces connected by lateral faces, said introduction duct presenting with said receiving housing a common area at least partially closed at the two main faces, the portion of the receiving housing distinct from said common area being at least partially open at one of said main faces to accommodate said bar and said leaf spring;
  • said common area opens into said cell and the end portion of said first leg of the leaf spring is disposed in said common area;
  • said housing comprises a ramp for guiding said end portion of said first branch of the leaf spring toward said common area; and or
  • said ramp belongs to a corner.

La fermeture partielle de la zone commune au conduit d'introduction et au logement d'accueil est rendue possible par le fait que la lame ressort est assemblée indépendamment de la barrette. Il est ainsi rendu possible, dans un premier temps, d'introduire la lame ressort dans le boîtier par la partie ouverte du logement d'accueil puis, dans un deuxième temps, de déplacer la lame ressort pour que vienne se loger une portion de cette lame dans la zone commune partiellement fermée et enfin, dans un troisième temps, d'assembler la barrette pour maintenir en position la lame ressort ainsi disposée.The partial closure of the common area to the introducer duct and the reception housing is made possible by the fact that the spring blade is assembled regardless of the bar. It is thus made possible, firstly, to introduce the spring blade into the housing through the open portion of the housing and then, in a second step, to move the spring blade to accommodate a portion of this blade in the partially closed common area and finally, in a third time, to assemble the bar to maintain in position the spring blade thus disposed.

La zone partiellement fermée commune au conduit d'introduction et au logement d'accueil permet ainsi d'assurer un guidage optimal de la portion d'extrémité du câble vers l'alvéole au cours de son insertion empêchant ainsi à la portion d'extrémité du câble, en particulier au voisinage de l'alvéole, de s'échapper du bloc de jonction transversalement aux faces principales de ce bloc.The partially closed zone common to the introduction duct and the receiving housing thus makes it possible to ensure optimal guiding of the end portion of the cable towards the cell during its insertion thus preventing the end portion of the cable, in particular in the vicinity of the cell, to escape from the terminal block transversely to the main faces of this block.

Selon d'autres caractéristiques préférées, pour les mêmes raisons que celles indiquées ci-dessus :

  • ledit boîtier comporte dans ledit logement d'accueil un pion, autour duquel est disposée ladite lame ressort ; et/ou
  • ledit pion se situe entre lesdites première et seconde branches de ladite lame ressort, au voisinage dudit tronçon incurvé.
According to other preferred features, for the same reasons as those indicated above:
  • said housing comprises in said receiving housing a pin, around which is disposed said spring blade; and or
  • said pin is located between said first and second branches of said leaf spring, in the vicinity of said curved section.

La présence du pion facilite la mise en place de la lame ressort dans la zone partiellement fermée en jouant le rôle de support autour duquel la lame ressort pivote pour être mise en position dans le conduit d'introduction.The presence of the pin facilitates the installation of the spring blade in the partially closed zone by acting as a support around which the spring blade pivots to be placed in position in the introduction conduit.

Selon d'autres caractéristiques préférées, pour les mêmes raisons que celles indiquées ci-dessus :

  • ledit boîtier comporte dans ledit logement d'accueil un autre pion situé entre lesdites première et seconde branches de ladite lame ressort et à l'opposé dudit tronçon incurvé par rapport audit pion.
According to other preferred features, for the same reasons as those indicated above:
  • said housing comprises in said receiving housing another pin located between said first and second branches of said spring blade and opposite said curved section relative to said pin.

Le pion supplémentaire joue le rôle de pion de butée permettant de limiter le débattement de la première branche de la lame ressort.The additional pin plays the role of stop pin to limit the movement of the first branch of the spring blade.

Selon d'autres caractéristiques préférées, pour les mêmes raisons que celles indiquées ci-dessus :

  • ladite barrette présente des moyens d'encliquetage adaptés à coopérer avec des moyens d'encliquetage complémentaires que comporte ledit boîtier ;
  • lesdits moyens d'encliquetage de ladite barrette comportent au moins un bossage et lesdits moyens d'encliquetage complémentaires dudit boîtier comportent une paroi présentant un renfoncement adapté à recevoir ledit bossage ;
  • ladite paroi est flexible ;
  • ledit bloc comporte deux dites lames ressort et ladite barrette comporte deux dites portions présentant chacune un tronçon muni d'une butée et un tronçon muni d'une alvéole, ladite barrette comportant également un tronçon central dont chaque extrémité se raccorde à une respective desdites portions par l'extrémité du tronçon muni d'une butée correspondant opposée à celle raccordée au tronçon muni d'une alvéole ;
  • chaque dit tronçon muni d'une butée se raccorde transversalement audit tronçon central et audit tronçon muni d'une alvéole correspondant ; et/ou
  • lesdits tronçons munis d'une butée, lesdits tronçons munis d'une alvéole et ledit tronçon central sont dans le prolongement les uns des autres, ladite barrette étant rectiligne.
According to other preferred features, for the same reasons as those indicated above:
  • said bar has latching means adapted to cooperate with complementary latching means that comprises said housing;
  • said latching means of said bar comprise at least one boss and said complementary latching means of said housing comprise a wall having a recess adapted to receive said boss;
  • said wall is flexible;
  • said block comprises two said leaf spring and said bar comprises two said portions each having a section provided with an abutment and a section provided with a cell, said bar also comprising a central section each end of which connects to a respective one of said portions by the end of the section provided with a corresponding abutment opposite that connected to the section provided with a cell;
  • each said section provided with a stop is connected transversely to said central section and to said section provided with a corresponding cell; and or
  • said sections provided with a stop, said sections provided with a cell and said central section are in the extension of each other, said strip being rectilinear.

BREVE DESCRIPTION DES DESSINSBRIEF DESCRIPTION OF THE DRAWINGS

L'exposé de l'invention sera maintenant poursuivi par la description détaillée d'un exemple de réalisation, donnée ci-après à titre illustratif et non limitatif, en référence aux dessins annexés. Sur ceux-ci :

  • la figure 1 est une vue en perspective d'un bloc de jonction dans lequel ont été insérés des embouts de câblage de diamètres différents ;
  • la figure 2 est une vue en élévation de ce bloc de jonction prise de devant sur la figure 1 mais sans que les embouts de câblage n'aient été introduits dans ce bloc ;
  • les figures 3 à 5 sont trois vues en élévation similaires à la figure 2 présentant les différentes opérations d'assemblage de lames ressort et d'une barrette conductrice que comporte ce bloc de jonction ;
  • les figures 6 et 7 sont deux vues en élévation-coupe selon un plan parallèle et centré par rapport aux faces principales du bloc de jonction prises respectivement avant et après que l'une des branches de chacune des lames ressort assemblées n'ait été engagée dans une alvéole correspondante ménagée dans la barrette ;
  • la figure 8 est une vue similaire à la figure 1 mais prise sous un angle différent et illustrant l'opération de retrait d'un embout de câblage à l'aide de l'extrémité plate d'un tournevis ;
  • la figure 9 est une vue agrandie du détail repéré par IX sur la figure 8;
  • la figure 10 est une vue en élévation-coupe d'un bloc de jonction semblable à celui représenté sur les figures 1 à 9 auquel a été ajouté un pied de contact à mettre en liaison électrique avec un rail conducteur en Ω ;
  • la figure 11 est une vue en élévation-coupe de ce bloc prise selon un plan perpendiculaire et centré par rapport aux faces principales du bloc de jonction ;
  • la figure 12 est une vue en perspective illustrant l'opération d'assemblage de ce pied de contact au bloc de jonction ;
  • les figures 13 et 14 sont respectivement une vue en élévation et une vue en perspective représentant isolément ce pied de contact ;
  • les figures 15 et 16 sont deux vues en perspective du bloc de jonction muni du pied de contact illustré en figures 10 à 14, respectivement prises avant et après l'opération d'enclenchement de ce bloc au rail en Ω ;
  • les figures 17 et 18 sont deux vues similaires aux figures 15 et 16 mais sans que ne soit représenté le boîtier isolant que comporte ce bloc de jonction ;
  • les figures 19 et 20 sont deux vues similaires à la figure 17, mais sans que ne soit représenté la barrette et les lames ressort, pour deux variantes du rail en Ω représenté en figures 17 et 18 ;
  • la figure 21 est une vue en perspective représentant un ensemble constitué d'un bloc de jonction représenté en figures 1 à 9, dans lequel ont été insérés des embouts de câblage de diamètres différents, et d'une cloison amovible emboîtée dans ce bloc ;
  • la figure 22 est une vue représentant cette cloison et ce bloc de jonction détachés l'un de l'autre ;
  • la figure 23 est une vue en perspective d'une série d'ensembles formés chacun d'un bloc de jonction et d'une cloison disposés les uns contre les autres sur un rail en Ω ;
  • les figures 24 à 26 sont trois vues en perspective illustrant les différentes opérations d'assemblage d'un deuxième mode de réalisation du bloc de jonction ;
  • les figures 27 et 28 sont deux vues en élévation-coupe prises selon un plan parallèle et centré par rapport aux faces principales du bloc de jonction illustrant respectivement ce bloc de jonction sans et avec le pied de contact représenté en figures 13 et 14;
  • la figure 29 est une vue en perspective d'un troisième mode de réalisation du bloc de jonction ;
  • les figures 30 à 33 sont quatres vues en élévation illustrant les différentes opérations d'assemblage de ce bloc de jonction ;
  • la figure 34 est une vue en élévation-coupe prise selon un plan parallèle et centré par rapport aux faces principales du bloc de jonction ; et
  • la figure 35 est une vue similaire à la figure 33 mais où le bloc de jonction est muni d'un pied de contact.
The presentation of the invention will now be continued by the detailed description of an exemplary embodiment, given below by way of illustration and not limitation, with reference to the accompanying drawings. On these:
  • the figure 1 is a perspective view of a terminal block into which cable ends of different diameters have been inserted;
  • the figure 2 is an elevational view of this junction block taken from the front on the figure 1 but without the wiring ends being introduced into this block;
  • the Figures 3 to 5 are three elevational views similar to the figure 2 presenting the various spring blade assembly operations and a conductive bar that includes this junction block;
  • the figures 6 and 7 are two views in elevation-section along a plane parallel and centered with respect to the main faces of the terminal block taken respectively before and after one of the branches of each of the blades assembled spring has been engaged in a corresponding cell formed in the bar;
  • the figure 8 is a view similar to the figure 1 but taken at a different angle and illustrating the operation of removing a cable end using the flat end of a screwdriver;
  • the figure 9 is an enlarged view of the detail spotted by IX on the figure 8 ;
  • the figure 10 is an elevational sectional view of a terminal block similar to that shown on the Figures 1 to 9 to which has been added a contact foot to be electrically connected to a conducting rail in Ω;
  • the figure 11 is a sectional elevation view of this block taken along a plane perpendicular and centered with respect to the main faces of the terminal block;
  • the figure 12 is a perspective view illustrating the assembly operation of this contact foot at the terminal block;
  • the Figures 13 and 14 are respectively an elevational view and a perspective view showing in isolation this contact foot;
  • the Figures 15 and 16 are two perspective views of the terminal block with the contact foot illustrated in Figures 10 to 14 respectively taken before and after the engagement operation of this block to the rail in Ω;
  • the Figures 17 and 18 are two similar views to Figures 15 and 16 but without being represented the insulating housing that includes this terminal block;
  • the Figures 19 and 20 are two views similar to the figure 17 , but without being represented the bar and the leaf spring, for two variants of the rail in Ω represented in Figures 17 and 18 ;
  • the figure 21 is a perspective view showing an assembly consisting of a terminal block shown in FIG. Figures 1 to 9 , in which were inserted the wiring ends of different diameters, and a removable partition nested in this block;
  • the figure 22 is a view representing this partition and this terminal block detached from each other;
  • the figure 23 is a perspective view of a series of assemblies each formed of a terminal block and a partition disposed against each other on a Ω rail;
  • the Figures 24 to 26 are three perspective views illustrating the different assembly operations of a second embodiment of the terminal block;
  • the Figures 27 and 28 are two views in elevation-section taken along a plane parallel and centered with respect to the main faces of the terminal block respectively illustrating this junction block without and with the contact foot represented in Figures 13 and 14 ;
  • the figure 29 is a perspective view of a third embodiment of the terminal block;
  • the Figures 30 to 33 are four elevational views illustrating the various assembly operations of this terminal block;
  • the figure 34 is an elevation-sectional view taken along a parallel plane and centered with respect to the main faces of the terminal block; and
  • the figure 35 is a view similar to the figure 33 but where the terminal block is provided with a contact foot.

DESCRIPTION DETAILLEE D'UN EXEMPLE DE REALISATIONDETAILED DESCRIPTION OF AN EXEMPLARY EMBODIMENT

Le bloc de jonction 1 représenté en figures 1 à 12 comporte un boîtier isolant 2, une barrette conductrice 3 et deux lames ressort 4.The terminal block 1 represented in Figures 1 to 12 comprises an insulating housing 2, a conductive bar 3 and two spring blades 4.

Le boîtier isolant 2 est en matière plastique moulée et présente deux faces principales 5 et 6 reliées l'une à l'autre par une face latérale avant 7, une face latérale arrière 8, une face haute 9 et une face basse 10.The insulating casing 2 is made of molded plastic and has two main faces 5 and 6 connected to each other by a front lateral face 7, a rear lateral face 8, an upper face 9 and a lower face 10.

La face 6 est entièrement occultée par une cloison 22 tandis que la face 5 est partiellement ouverte.The face 6 is completely obscured by a partition 22 while the face 5 is partially open.

Ce boîtier comporte une patte d'accrochage 15, une patte d'enclenchement 16 à un rail en Ω, deux conduits d'introduction de câbles 32, deux conduits de manoeuvre 33 et un logement d'accueil 39 (figure 3) de la barrette 3 et des lames ressorts 4.This housing comprises a latching lug 15, a latching tab 16 to a Ω rail, two cable introduction ducts 32, two operating ducts 33 and a receiving housing 39 (FIG. figure 3 ) of the bar 3 and leaf springs 4.

Les pattes 15 et 16 sont situées du côté de la face 8. Entre ces pattes s'étend une fente 17 ménagée à l'intérieur du boîtier 2 et débouchant au niveau de la face 8.The tabs 15 and 16 are located on the side of the face 8. Between these tabs extends a slot 17 formed inside the housing 2 and opening at the face 8.

La patte d'accrochage 15 comporte deux portions identiques 19 de part et d'autre de la fente 17, chaque portion présentant en regard de la patte d'enclenchement un renfoncement 20 adapté à recevoir comme on le verra ci-après une aile d'un rail en Ω.The hooking lug 15 has two identical portions 19 on either side of the slot 17, each portion presenting opposite the leg engaging a recess 20 adapted to receive as will be seen hereinafter a wing of a rail in Ω.

La patte d'enclenchement 16 présente trois cloisons 25, 26 et 27 s'étendant sensiblement transversalement à la face 8. La cloison 25 la plus proche de la patte d'accrochage est séparée par la fente 17 en deux portions identiques 18. Chaque portion 18 présente une dent 24 en saillie vers la patte d'accrochage 15.The latching lug 16 has three partitions 25, 26 and 27 extending substantially transversely to the face 8. The partition 25 closest to the latching lug is separated by the slot 17 in two identical portions 18. Each portion 18 has a tooth 24 projecting towards the hooking lug 15.

Le boîtier comporte également entre les pattes 15 et 16 deux cloisons 21 de part et d'autre de la fente 17 prolongeant parallèlement aux faces 5 et 6 les portions de cloison 19.The housing also comprises between the legs 15 and 16 two partitions 21 on either side of the slot 17 extending parallel to the faces 5 and 6 of the partition portions 19.

Les conduits 32 (figures 7 et 8) sont délimités par deux surfaces concaves 47 et par la surface d'une cloison 48 située du côté de la face 6 et présentant un épaulement 48'. Les conduits 32 débouchent sur la face 7 par une ouverture 45 et sur la face 5 par une ouverture 43.The conduits 32 ( Figures 7 and 8 ) are delimited by two concave surfaces 47 and the surface of a partition 48 located on the side of the face 6 and having a shoulder 48 '. The conduits 32 open on the face 7 through an opening 45 and on the face 5 through an opening 43.

L'ouverture 43 présente deux bords parallèles 43' selon la direction d'insertion du câble et un bord incurvé 43".The opening 43 has two parallel edges 43 'in the direction of insertion of the cable and a curved edge 43 ".

Chaque conduit 32 est fermé au niveau des faces principales par deux cloisons triangulaires 34 saillantes parallèlement aux faces 5 et 6 vers l'intérieur du boîtier.Each duct 32 is closed at the main faces by two triangular partitions 34 projecting parallel to the faces 5 and 6 towards the inside of the housing.

L'une de ces cloisons 34 est située au niveau de la face partiellement ouverte 5 et l'autre contre la paroi 22 fermant la face 6 du bloc de jonction (figure 9) formant localement une surépaisseur.One of these partitions 34 is located at the partially open face 5 and the other against the wall 22 closing the face 6 of the terminal block ( figure 9 ) locally forming an extra thickness.

La cloison 34 située du coté de la face 6 se prolonge par un coin 42 (figure 9).The partition 34 located on the side of the face 6 is extended by a corner 42 ( figure 9 ).

Les conduits 33 présentent une section rectangulaire et débouchent uniquement sur la face 7 par une ouverture 46.The conduits 33 have a rectangular section and open only on the face 7 through an opening 46.

Le logement d'accueil 39 de la barrette 3 et des lames ressorts 4 est partiellement délimité par une paire de nervures à contour fermé 30 et une paire de nervures à contour fermé 31 (figure 3).The receiving housing 39 of the bar 3 and the leaf springs 4 is partially delimited by a pair of closed-contour ribs 30 and a pair of closed-contour ribs 31 ( figure 3 ).

La zone du logement 39 adaptée à recevoir la barrette est partiellement délimitée par les tronçons de nervure 30", 31"', et le bord inférieur sur la figure 3 des cloisons 34 tandis que chaque zone du logement 39 adaptée à recevoir une lame ressort 4 est partiellement délimitée par les tronçons de nervure 30', 31', 31" (figure 4) et comprend l'espace 44 (figure 7) situé entres les deux cloisons 34 correspondantes.The area of the housing 39 adapted to receive the bar is partially delimited by the rib sections 30 ", 31"'and the lower edge on the figure 3 partitions 34 while each zone of the housing 39 adapted to receive a leaf spring 4 is partially delimited by the rib sections 30 ', 31', 31 "( figure 4 ) and includes space 44 ( figure 7 ) located between the two corresponding partitions 34.

Dans chaque zone du logement d'accueil 39 adaptée à recevoir une lame ressort 4 se situe un pion cylindrique 40 et un pion oblong 41.In each zone of the receiving housing 39 adapted to receive a leaf spring 4 is a cylindrical pin 40 and an oblong pin 41.

A chaque extrémité, l'espace 44 situé entre deux cloisons 34 est commun au conduit 32 correspondant et au logement 39. Le logement d'accueil 39 est ainsi, à chaque extrémité, partiellement occulté sur la face 5 par une cloison 34.At each end, the space 44 located between two partitions 34 is common to the corresponding conduit 32 and the housing 39. The receiving housing 39 is thus, at each end, partially obscured on the face 5 by a partition 34.

Le moulage du boîtier est obtenu à l'aide de trois tiroirs, un pour chaque paire de conduits 32, 33 et un troisième pour former la fente 17.The casing is molded using three drawers, one for each pair of ducts 32, 33 and a third to form the slot 17.

On va maintenant décrire la barrette 3 et les lames ressorts 4 à l'aide des figures 1 à 10.We will now describe the bar 3 and the leaf springs 4 with the help of Figures 1 to 10 .

La barrette 3 comporte une marche centrale 50 (figure 7) et, de chaque côté de la marche centrale un marche latérale 51, chaque marche latérale étant reliée à la marche centrale par une contremarche 52 en équerre par rapport à la marche centrale 50 et aux marches latérales 51 de sorte que chaque marche 51 forme avec sa contremarche 52 une portion en L.The bar 3 comprises a central step 50 ( figure 7 ) and on each side of the central step a side step 51, each side step being connected to the central step by a riser 52 at right angles to the central step 50 and the side steps 51 so that each step 51 forms with its riser 52 a portion in L.

Les marches latérales 51 sont situées au même niveau l'une par rapport à l'autre de sorte que la barrette présente un profil en podium.The side steps 51 are located at the same level relative to each other so that the bar has a podium profile.

La marche centrale 50 présente en son centre un unique orifice 63 tandis que chaque marche latérale 51 est munie d'une alvéole 54 délimitée par les surfaces d'une cage emboutie 55 saillant du côté opposé à la marche centrale 50.The central step 50 has at its center a single orifice 63 while each side step 51 is provided with a cell 54 delimited by the surfaces of a stamped cage 55 projecting from the opposite side to the central step 50.

Les lames ressort 4 représentées en figures 1 à 10 présentent un profil en V dissymétrique, chaque lame ressort étant formée d'une grande branche droite 58 et d'une petite branche droite 59 reliées l'une à l'autre à une extrémité par un tronçon recourbé 60.The spring blades 4 represented in Figures 1 to 10 have an asymmetrical V-shaped profile, each leaf spring being formed of a large straight branch 58 and a small straight branch 59 connected to one another at one end by a curved section 60.

Chacune des branches 58 et 59 présente, à peu près à mi-longueur, un changement de largeur, avec leur largeur qui est plus petite entre leur extrémité libre et la zone de changement de largeur.Each of the branches 58 and 59 has, at about mid-length, a width change, with their width being smaller between their free end and the width changing zone.

On va maintenant décrire l'opération d'assemblage du bloc de jonction à l'aide des figures 3 à 7.The assembly operation of the terminal block will now be described using the Figures 3 to 7 .

Cet assemblage consiste dans un premier temps à disposer chaque lame ressort 4 dans le logement d'accueil 39. Le tronçon recourbé 60 de chaque lame ressort 4 est disposé autour du pion 40 dans l'espace situé au voisinage de ce pion du côté opposé au pion 41 (figure 3). Pour chaque lame ressort, la grande branche 58 prend alors place entre les pions 40, 41 correspondants et les cloisons 34 correspondantes tandis que la petite branche 59 prend place entre les pions 40, 41 correspondants et la nervure 30' correspondante (figure 3).This assembly consists first of all in arranging each leaf spring 4 in the receiving housing 39. The curved section 60 of each leaf spring 4 is arranged around the pin 40 in the space in the vicinity of this piece on the opposite side to pawn 41 ( figure 3 ). For each leaf spring, the large branch 58 then takes place between the corresponding pins 40, 41 and the corresponding partitions 34 while the small branch 59 takes place between the corresponding pins 40, 41 and the corresponding rib 30 '( figure 3 ).

L'étape suivante consiste à faire pivoter chaque lame ressort 4 autour du pion 40 correspondant, parallèlement aux faces 5 et 6, de sorte que la portion d'extrémité du tronçon de grande longueur 58 de la lame ressort se place dans l'espace 44 entre les cloisons 34 (figure 4), ce tronçon étant guidé vers cet espace par la rampe formée par l'une des surfaces du coin 42 (figure 9), jusqu'à venir en butée contre le boîtier (figure 4).The next step is to rotate each leaf spring 4 around the corresponding pin 40, parallel to the faces 5 and 6, so that the end portion of the long section 58 of the spring blade is placed in the space 44 between the partitions 34 ( figure 4 ), this section being guided towards this space by the ramp formed by one of the surfaces of the corner 42 ( figure 9 ), until it stops against the housing ( figure 4 ).

La portion d'extrémité de la branche 58 est ainsi logée dans le conduit d'introduction 32 correspondant.The end portion of the branch 58 is thus housed in the corresponding introduction conduit 32.

La lame ainsi disposée libère alors la zone du logement 39 adaptée à accueillir la barrette 3 de sorte qu'il est désormais possible d'introduire cette barrette dans le boîtier.The blade thus disposed releases the area of the housing 39 adapted to accommodate the bar 3 so that it is now possible to introduce this bar in the housing.

Au cours de cette introduction, la marche centrale 50 est disposée entre les tronçons de nervures 30" et 31'" du boîtier isolant tandis que les portions d'extrémité des marches latérales 51 se logent sous les cloisons 34 (figure 5).During this introduction, the central step 50 is arranged between the sections of ribs 30 "and 31 '" of the insulating casing while the end portions of the side steps 51 are housed under the partitions 34 ( figure 5 ).

Pour chaque cage 55, le conduit 32 débouche ainsi dans l'alvéole 54. Une paroi 56 de la cage 55 est alors disposée sous l'arête d'extrémité 61 de la branche 58 de la lame ressort correspondante tandis que la portion d'extrémité de la branche 59 regarde, du côté opposé à la branche 58, la contremarche 52 (figures 5 et 6).For each cage 55, the conduit 32 thus opens into the cell 54. A wall 56 of the cage 55 is then disposed under the end edge 61 of the branch 58 of the corresponding spring blade while the end portion branch 59 looks, on the side opposite the branch 58, the riser 52 ( Figures 5 and 6 ).

La dernière opération consiste, à l'aide d'un outil ou d'un câble à âme rigide au travers du conduit 32 ou 33, à venir exercer une pression contre la branche 58 pour faire venir en butée la branche 59 contre la contremarche 52 et ainsi faire fléchir la branche 58 afin de franchir un point dur par rapport à la barrette 3 de façon à disposer l'arête d'extrémité 61 de cette branche dans l'alvéole 54, contre la surface 57 de la paroi 56 de la cage 55 (figure 7).The last operation consists, using a tool or a rigid core cable through the conduit 32 or 33, to come to exert pressure against the branch 58 to abut the branch 59 against the riser 52 and thus bend the branch 58 to cross a hard point relative to the bar 3 so as to have the end edge 61 of this branch in the cell 54, against the surface 57 of the wall 56 of the cage 55 ( figure 7 ).

Dans cette position, la barrette est retenue en direction de la face 5 par la portion d'extrémité de la branche 58 de lame ressort engagée dans la cage 55, cette même branche étant retenue par la cloison 34 située au niveau de cette face 5, la lame ressort 4 étant maintenue en position grâce à la contremarche 52 contre laquelle vient en butée la portion d'extrémité de la branche 59.In this position, the bar is retained in the direction of the face 5 by the end portion of the limb 58 spring blade engaged in the cage 55, the same branch being retained by the partition 34 located at this face 5, the spring blade 4 being held in position by the riser 52 against which abuts the end portion of the branch 59.

On va maintenant décrire l'opération d'introduction d'un embout de câblage dans le bloc de jonction 1 à l'aide de la figure 1.We will now describe the operation of introducing a cable end into the terminal block 1 using the figure 1 .

De tels embouts sont par exemple utilisés en conjonction avec des câbles dont l'âme conductrice est formée de brins souples pour faciliter l'introduction des conducteurs dans le bloc de jonction sans risque de faire plier les brins souples.Such tips are for example used in conjunction with cables whose conductive core is formed of flexible strands to facilitate the introduction of conductors in the terminal block without the risk of folding the flexible strands.

Ces embouts (70) comportent un élément cylindrique creux conducteur et rigide 71 serti autour de l'extrémité dénudée d'un conducteur (non représenté) et une enveloppe en matière plastique isolante 72.These tips (70) comprise a hollow and conductive hollow cylindrical element 71 crimped around the stripped end of a conductor (not shown) and an insulating plastic casing 72.

La première opération consiste à faire pénétrer l'embout 70 au travers du conduit 32 dans lequel il doit être inséré afin de contraindre la lame ressort en appuyant sur la branche 58 pour écarter l'arête d'extrémité 61 (figures 6 et 7) de la surface 57 afin de laisser passer cet élément entre cette arête 61 et la paroi 56.The first operation is to penetrate the tip 70 through the conduit 32 in which it must be inserted in order to constrain the leaf spring by pressing the leg 58 to move away the end edge 61 ( figures 6 and 7 ) of the surface 57 to allow this element to pass between this edge 61 and the wall 56.

Aucun mouvement de rotation de la lame ressort 4 n'est possible puisque la branche 59 de cette lame est maintenue au cours de cet effort en butée contre la contremarche 52.No rotational movement of the spring blade 4 is possible since the branch 59 of this blade is maintained during this effort in abutment against the riser 52.

L'embout de câblage 70 est ainsi introduit dans le conduit 32, le mouvement d'enfoncement du câble se poursuivant par exemple jusqu'à ce que le bout de l'élément 71 vienne en butée contre le tronçon de nervure 31' ou jusqu'à ce que l'enveloppe 72 vienne en butée au niveau de la face 5 contre le bord incurvé 43' de la cloison 34 ou, au niveau de la face 6, contre l'épaulement 48' de la cloison 48.The wiring end-piece 70 is thus introduced into the duct 32, the driving movement of the cable continuing for example until the end of the element 71 comes into abutment against the ridge section 31 'or until that the envelope 72 abuts at the level of the face 5 against the curved edge 43 'of the partition 34 or, at the level of the face 6, against the shoulder 48' of the partition 48.

La surface interne 57 de cette paroi forme pour l'élément 71 un siège contre lequel il est maintenu par la lame ressort 4 qui le plaque contre cette surface. Si cet élément une fois installé dans le bloc de jonction 1 tend à être retiré du bloc, c'est-à-dire s'il est soumis à un effort dirigé dans un sens contraire au sens d'insertion, cet élément aura tendance à entraîner avec lui la branche 58, qui va s'arc-bouter et donc le coincer contre la paroi 56, ce qui interdira le retrait de cet élément.The inner surface 57 of this wall forms for the element 71 a seat against which it is held by the spring blade 4 which plate against this surface. If this element once installed in the terminal block 1 tends to be removed from the block, that is to say if it is subjected to a force directed in a direction contrary to the direction of insertion, this element will tend to bring with it the branch 58, which will bend and thus wedge against the wall 56, which will prohibit the removal of this element.

Pour le retrait de l'embout 70, l'opérateur fait pénétrer au travers du conduit 33 correspondant au conduit 32 dans lequel est inséré l'embout 70, un outil (par exemple l'extrémité plate 73 du tournevis représenté en figure 8) afin de contraindre la lame ressort, jusqu'à ce que la branche 58 vienne éventuellement en butée contre le pion oblong 41, pour libérer l'élément 71 et permettre d'extraire l'embout 70.For the withdrawal of the tip 70, the operator makes it through the conduit 33 corresponding to the conduit 32 into which is inserted the nozzle 70, a tool (for example the flat end 73 of the screwdriver shown in FIG. figure 8 ) in order to constrain the spring blade, until the branch 58 eventually abuts against the oblong pin 41, to release the element 71 and allow to extract the tip 70.

On va maintenant décrire à l'aide des figures 10 à 14 le pied de contact 80 à assembler au bloc de jonction 1 si l'on souhaite former un bloc de jonction reliant électriquement un ou deux câbles pas uniquement entre eux mais également au rail conducteur en Ω (bloc pour conducteurs de protection).We will now describe using Figures 10 to 14 the contact foot 80 to be assembled to the terminal block 1 if it is desired to form a terminal block electrically connecting one or two cables not only to each other but also to the conducting rail in Ω (block for protective conductors).

De tels blocs de jonction sont en général identifiés par leur couleur, le boîtier isolant de ces blocs étant teinté en deux couleurs l'une jaune et l'autre verte (bloc vert/jaune).Such terminal blocks are generally identified by their color, the insulating housing of these blocks being tinted in two colors, one yellow and the other green (green / yellow block).

Le pied de contact 80 illustré en figures 13 et 14 est en métal conducteur et est formé d'une seule pièce. Il comporte un corps central 81, une patte d'accrochage 82, et une patte d'enclenchement 83.The contact foot 80 illustrated in Figures 13 and 14 is made of conductive metal and is formed in one piece. It comprises a central body 81, a hooking tab 82, and a locking tab 83.

Le corps central 81 comporte deux portions globalement rectangulaires 84 et 85, la portion 84 étant plus large que la portion 85. La portion 84 rattache les pattes 82 et 83 à la portion rectangulaire 85.The central body 81 has two generally rectangular portions 84 and 85, the portion 84 being wider than the portion 85. The portion 84 attaches the tabs 82 and 83 to the rectangular portion 85.

Cette portion 85 présente à son sommet deux dents saillantes 86 du côté opposé à la portion 84 tandis que dans la portion 84 est ménagée une fenêtre rectangulaire 87.This portion 85 has at its top two protruding teeth 86 on the side opposite the portion 84 while in the portion 84 is formed a rectangular window 87.

La patte d'enclenchement 83 comporte à son extrémité distale un cran rigide 88 et un bras étroit allongé et flexible 91 rattachant le cran 88 au corps 81.The locking tab 83 has at its distal end a rigid notch 88 and an elongated and flexible narrow arm 91 attaching the notch 88 to the body 81.

Ce cran 88 présente une dent 90 et un doigt 77 présentant une surface en rampe 89 et un bossage 78.This notch 88 has a tooth 90 and a finger 77 having a ramp surface 89 and a boss 78.

Le bras 91 est de largeur constante si ce n'est à ses portions d'extrémité qui sont légèrement incurvées, chacune rejoignant respectivement, en s'évasant, le cran 88 et le corps 81.The arm 91 is of constant width except for its end portions which are slightly curved, each respectively reaching, by flaring, the notch 88 and the body 81.

La patte d'accrochage 82 comporte un crochet 92 adapté à recevoir comme on le verra ci-après une des ailes d'un rail en Ω et un bras étroit allongé et flexible 76 joignant le crochet 92 au corps 81 en se rattachant au crochet 92 du côté du crochet opposé au corps 81 par rapport à l'encoche 93.The hooking lug 82 comprises a hook 92 adapted to receive, as will be seen below one of the wings of a rail in Ω and an elongated and flexible narrow arm 76 joining the hook 92 to the body 81 by attaching to the hook 92 on the opposite side of the hook 81 to the body relative to the notch 93.

Le bras 76 comporte un tronçon en C 94, ici plus précisément en demi cercle, dans le creux duquel est logé le crochet 92 et un tronçon droit incliné 95.The arm 76 comprises a C-section 94, here more precisely in a half-circle, in the hollow of which is housed the hook 92 and an inclined straight section 95.

Le tronçon en C 94 est relié à une extrémité au crochet 92 et à l'autre extrémité au tronçon droit incliné 95 lui-même relié par son extrémité opposée au corps 81 de sorte que le bras 76 présente un profil en J.The C-section 94 is connected at one end to the hook 92 and at the other end to the straight inclined section 95 itself connected by its opposite end to the body 81 so that the arm 76 has a profile in J.

Le crochet 92 comporte un pavé rigide 79 dans lequel est ménagée une encoche en V 93. La branche du pavé 79 délimitant l'encoche en V située du côté du crochet opposé au corps 81 par rapport à l'encoche 93 se rattache au bras 94 de la patte 82.The hook 92 comprises a rigid block 79 in which is formed a notch V 93. The leg of the block 79 defining the notch V located on the side of the hook opposite the body 81 relative to the notch 93 is attached to the arm 94 of the leg 82.

On va maintenant décrire l'opération d'assemblage de ce pied de contact au bloc de jonction à l'aide des figures 10 à 12.The assembly operation of this contact foot at the terminal block will now be described using the Figures 10 to 12 .

Le pied de contact est introduit au sein du bloc de jonction du côté de la face 8 par la fente 17 s'étendant de la patte d'accrochage 15 à la patte d'enclenchement 16 du boîtier isolant 2.The contact foot is introduced into the junction block on the side of the face 8 by the slot 17 extending from the latching lug 15 to the latching lug 16 of the insulating housing 2.

Au cours de cette introduction, le corps 81 pénètre dans le boîtier isolant entre les tronçons de nervure 31 "", la portion 85 en premier jusqu'à ce qu'une dent 35 (figure 11) du boîtier isolant, faisant saillie de la cloison 21 située du côté de la face 5 vers l'intérieur du boîtier, se loge par encliquetage dans l'orifice à contour carré 87 du corps 81, les fentes 23 ménagées dans cette cloison 21 assurant une déformation élastique de la dent 35.During this introduction, the body 81 enters the insulating housing between the rib portions 31 "", the portion 85 first until a tooth 35 ( figure 11 ) of the insulating housing, protruding from the partition 21 located on the side of the face 5 towards the inside of the housing, is snapped into the square-shaped orifice 87 of the body 81, the slots 23 formed in this partition 21 ensuring an elastic deformation of the tooth 35.

Dans la position encliquetée, le crochet 92 de la patte d'accrochage 82 du pied de contact est logé entre les deux portions de cloison 19 de la patte 15, de sorte que l'encoche 93 se situe entre les deux renfoncements 20 tandis que le cran 88 de la patte d'enclenchement 83 est logé entre les deux portions de cloison 18, entre les dents 24 (figure 11).In the latched position, the hook 92 of the hooking tab 82 of the contact foot is housed between the two partition portions 19 of the tab 15, so that the notch 93 is between the two recesses 20 while the notch 88 of the engagement tab 83 is housed between the two partition portions 18, between the teeth 24 ( figure 11 ).

Dans cette position encliquetée, les dents 86 du pied 80 sont disposées dans l'ouverture 63 de la marche 50 et font saillie par rapport à la barrette en direction de la face 7 (figure 11).In this latched position, the teeth 86 of the foot 80 are arranged in the opening 63 of the step 50 and protrude with respect to the bar towards the face 7 ( figure 11 ).

Pour terminer cette opération d'assemblage une opération de sertissage est réalisée à l'aide d'un outil (non représenté) adapté à s'introduire dans le boîtier du côté de la face 7 par deux cheminées 37 (figure 10) ménagées dans le boîtier isolant de chaque côté d'un muret central 38 et débouchant sur la face 7 pour exercer une pression contre les surfaces 96 des dents 86 afin de les écarter l'une de l'autre comme illustré en figure 10.To complete this assembly operation a crimping operation is performed using a tool (not shown) adapted to be introduced into the housing on the side of the face 7 by two chimneys 37 ( figure 10 ) formed in the insulating housing on each side of a central wall 38 and opening on the face 7 to exert pressure against the surfaces 96 of the teeth 86 to move them away from each other as illustrated in FIG. figure 10 .

Ce sertissage permet de garantir le maintien mécanique permanent du pied de contact 80 avec la barrette 3 et améliore, en augmentant la pression de serrage avec cette barrette, la qualité du contact électrique entre ce pied et cette barrette.This crimping makes it possible to guarantee the permanent mechanical maintenance of the contact foot 80 with the bar 3 and improves, by increasing the clamping pressure with this bar, the quality of the electrical contact between this foot and this bar.

On va maintenant décrire l'opération d'enclenchement d'un bloc de jonction 1 à un rail conducteur en Ω à l'aide des figures 15 à 18.The operation of switching on a terminal block 1 to a conducting rail in Ω will now be described using the Figures 15 to 18 .

L'enclenchement du bloc de jonction est ici décrit dans le cas où celui-ci présente un pied de contact. Les caractéristiques d'enclenchement relatives au boîtier isolant seul restent les mêmes lorsque le bloc de jonction est dépourvu d'un tel pied de contact (pas de liaison électrique au rail).The engagement of the terminal block is here described in the case where it has a contact foot. The interlocking characteristics of the insulating housing alone remain the same when the terminal block does not have such a contact foot (no electrical connection to the rail).

Le rail support conducteur 65 représenté sur les figures 15 à 18 est un rail profilé utilisé couramment pour y installer des blocs de jonction. Il présente un tronçon central 66 et deux branches 67 pliées à angle droit, les extrémités des branches 67 étant repliées à angle droit vers l'extérieur pour former deux ailes latérales 68, la section du rail profilé présentant ainsi une forme en Ω (renversé sur les figures).The conductive support rail 65 shown on the Figures 15 to 18 is a profile rail commonly used to install terminal blocks. It has a central section 66 and two branches 67 folded at right angles, the ends of the branches 67 being bent at right angles outwards to form two lateral wings 68, the section of the profiled rail thus having a shape in Ω (reversed on the figures).

Ce rail peut être fixé (par exemple en vissant le tronçon 66) aux montants d'une armoire électrique ou contre un support mural, le tronçon central 66 et les ailes 68 étant alors dans un plan vertical (tourné de 90° par rapport aux figures 17 et 18).This rail can be fixed (for example by screwing the portion 66) to the uprights of an electrical cabinet or against a wall support, the central section 66 and the wings 68 then being in a vertical plane (rotated 90 ° relative to the Figures 17 and 18 ).

Dans un premier temps, l'opération d'enclenchement consiste à accrocher le bloc de jonction contre l'une des ailes 68 du rail en Ω comme illustré en figure 15 en introduisant cette aile dans l'encoche 93 de la patte d'accrochage 82 du pied de contact (représenté sans le boîtier isolant en figure 17 pour la clarté de l'exposé) ainsi que dans le renfoncement 20 de la patte d'accrochage 15 du boîtier isolant (figure 15).In a first step, the interlocking operation consists of hooking the terminal block against one of the wings 68 of the Ω rail as illustrated in FIG. figure 15 by introducing this wing into the notch 93 of the hooking tab 82 of the contact foot (shown without the insulating housing in figure 17 for the sake of clarity) as well as in the recess 20 of the attachment lug 15 of the insulating housing ( figure 15 ).

L'étape suivante consiste à enclencher simultanément la patte d'enclenchement 83 (figure 18) du pied de contact et la patte d'enclenchement 16 (figure 16) du boîtier isolant sur l'autre aile 68 du rail en Ω. Pour cela, l'opérateur appuie sur le bloc de jonction contre la face 7 en direction du rail en Ω et de préférence, pour profiter de l'effet de levier, du côté le plus éloigné de la patte 15.The next step is to simultaneously engage the interlocking tab 83 ( figure 18 ) of the contact foot and the locking tab 16 ( figure 16 ) of the insulating housing on the other flange 68 of the Ω rail. For this, the operator presses the terminal block against the face 7 towards the rail in Ω and preferably, to take advantage of the leverage, the farthest side of the tab 15.

Cette action entraine une déformation du bras 82 jusqu'à ce que la patte d'enclenchement 83 prenne appui par la rampe 89 du doigt 77 contre l'arête supérieure de l'aile 68 correspondante.This action causes a deformation of the arm 82 until the engagement tab 83 is supported by the ramp 89 of the finger 77 against the upper edge of the wing 68 corresponding.

La rampe 89 guide ainsi le pied 80 qui se déforme jusqu'à ce que cette rampe passe sous l'aile 68, La dent 90 venant en butée contre cette aile (figure 18).The ramp 89 thus guides the foot 80 which deforms until this ramp passes under the wing 68, the tooth 90 abutting against this wing ( figure 18 ).

Le bossage 78 situé au bout de la rampe 89, sous la dent 90 assure le maintien stable du pied de contact au rail, empêchant tout risque de désenclenchement intempestif.The boss 78 located at the end of the ramp 89, under the tooth 90 ensures the stable maintenance of the contact foot rail, preventing any risk of inadvertent disengagement.

La grande longueur des tronçons 94 et 95 assure une flexibilité optimale pour le bras 76 qui se déforme tout au long de cette opération.The long length of the sections 94 and 95 ensures optimum flexibility for the arm 76 which deforms throughout this operation.

Simultanément à l'enclenchement du pied de contact 80 sur le rail 65, la patte d'enclenchement 16 du boîtier isolant s'enclenche de façon similaire sur cette même aile, chaque dent 24 venant prendre appui par sa surface incurvée 28 (figure 15) contre l'arête supérieure de l'aile 68 correspondante pour guider la patte 16. En réponse à cet effort, les cloisons 25 à 27 de cette patte se déforment légèrement transversalement au rail pour que chaque dent 24 s'engage et se referme sous cette aile par rappel élastique (figure 16).Simultaneously with the engagement of the contact foot 80 on the rail 65, the engagement lug 16 of the insulating housing engages in a similar manner on the same flange, each tooth 24 being supported by its curved surface 28 ( figure 15 ) against the upper edge of the corresponding flange 68 to guide the flap 16. In response to this effort, the partitions 25 to 27 of this tab slightly deform transversely to the rail so that each tooth 24 engages and closes under this wing by elastic return ( figure 16 ).

Une fois ce bloc de jonction enclenché au rail, les opérations de connexion des câbles peuvent être réalisées en toute sécurité comme exposé ci-dessus.Once this terminal block is engaged with the rail, the connection operations of the cables can be performed safely as explained above.

Pour un bloc de jonction qui ne présente pas un tel pied de contact, une connexion au rail en Ω est réalisée de la même façon si ce n'est qu'un tel bloc de jonction n'est engagé au rail que par les pattes d'accrochage et d'enclenchement du boîtier isolant. Une telle opération permettant alors dans ce cas non pas d'assurer une liaison électrique mais uniquement de garantir un support mécanique du bloc de jonction au rail.For a terminal block which does not have such a contact foot, a connection to the Ω rail is made in the same way except that such a terminal block is engaged to the rail only by the legs of the rail. hooking and engagement of the insulating housing. Such an operation then in this case not to provide an electrical connection but only to ensure mechanical support of the terminal block to the rail.

D'autres types de rail existent tels que ceux représentés en figures 19 et 20.Other types of rail exist such as those represented in Figures 19 and 20 .

D'une manière générale, on a employé pour les éléments similaires les mêmes références, mais additionnées pour chaque mode de réalisation du nombre 100.In general, the same references have been used for similar elements, but added for each embodiment of the number 100.

Le rail 165 représenté en figure 19 et le rail 265 représenté en figure 20 diffèrent du rail 65 représenté en figure 17 notamment par la hauteur et l'épaisseur de leurs branches et de leurs ailes.The rail 165 represented in figure 19 and the rail 265 shown in figure 20 differ from the rail 65 represented in figure 17 especially by the height and thickness of their branches and their wings.

Restent constantes en raison des normes en vigueur, quelque soit le type de rail, la distance séparant les extrémités des deux ailes et l'épaisseur de chaque aile à son extrémité (1 mm).Remain constant because of the standards in force, whatever the type of rail, the distance separating the ends of the two wings and the thickness of each wing at its end (1 mm).

La forme en V de l'encoche 93 et en particulier la distance au fond de l'encoche séparant les deux branches du V est adaptée à coopérer avec les trois types de rail illustrés, que les ailes de ces rails soit d'épaisseur constante (rail 65) ou que cette épaisseur décroisse en direction du bord des ailes (rails 165 et 265).The V-shaped notch 93 and in particular the distance to the bottom of the notch separating the two branches of the V is adapted to cooperate with the three types of rail illustrated, that the wings of these rails is of constant thickness ( rail 65) or that this thickness decreases towards the edge of the wings (rails 165 and 265).

On va maintenant décrire une cloison d'extension amovible à emboîter si besoin au bloc de jonction pour y loger comme on le verra ci-après des embouts de câblage pouvant faire saillie du bloc de jonction.We will now describe a removable extension wall to be fitted if necessary to the terminal block for housing as will be seen below wiring ends that can project from the terminal block.

Cette cloison 97 (figures 21 à 23) présente deux encoches 99, deux tenons 98 et deux nervures 96 en saillie d'un même côté de la cloison 97.This partition 97 ( Figures 21 to 23 ) has two notches 99, two pins 98 and two ribs 96 projecting from the same side of the partition 97.

Chaque encoche 99 présente un contour semblable à celui de l'ouverture 43 du conduit 32 correspondant. Chaque encoche est ainsi délimitée par deux bords droits 99' parallèles à la direction d'insertion du câble et un bord 99" transversal à cette direction joignant les bords droits 99'.Each notch 99 has a contour similar to that of the opening 43 of the conduit 32 corresponding. Each notch is thus delimited by two straight edges 99 'parallel to the direction of insertion of the cable and an edge 99 "transverse to this direction joining the straight edges 99'.

Cette cloison est emboîtée au bloc de jonction 1 en disposant la cloison 97 en regard de la face 5 du bloc de jonction 1 pour que les tenons 98 de cette cloison viennent s'engager dans des mortaises 29 que présente le boîtier isolant 1 du bloc de jonction (figure 22), la nervure 96 venant alors se loger au sein de la nervure 31 afin d'augmenter la longueur des lignes de fuite du bloc de jonction.This partition is nested at the junction block 1 by disposing the partition 97 facing the face 5 of the junction block 1 so that the lugs 98 of this partition are engaged in mortises 29 that presents the insulating housing 1 of the block of junction ( figure 22 ), the rib 96 then being housed within the rib 31 to increase the length of the vanishing lines of the terminal block.

Comme exposé ci-dessus, chaque conduit 32 du bloc de jonction présente une ouverture 43 par laquelle un embout de câblage peut faire saillie latéralement en particulier si le plus grand diamètre de cet embout est supérieur à la distance séparant les faces principales 5 et 6 (également appelée pas du bloc de jonction), en négligeant l'épaisseur de la cloison 48 fermant le conduit 32 au niveau de la face 6.As explained above, each duct 32 of the terminal block has an opening 43 through which a wiring end can project laterally, in particular if the largest diameter of this endpiece is greater than the distance separating the main faces 5 and 6 ( also called step of the terminal block), neglecting the thickness of the partition 48 closing the conduit 32 at the face 6.

En effet l'épaisseur de la cloison 48 est relativement faible si bien que l'on considère qu'elle est une grandeur négligeable devant le pas du bloc de jonction.Indeed, the thickness of the partition 48 is relatively small so that it is considered that it is a negligible magnitude before the pitch of the terminal block.

On entend ici par « plus grand diamètre » celui des diamètres de l'élément de l'embout qui présente la plus grande dimension, par exemple dans le cas de l'embout 70, le diamètre de l'enveloppe 72.The term "larger diameter" is used here to mean that of the diameters of the element of the endpiece which has the largest dimension, for example, in the case of the endpiece 70, the diameter of the envelope 72.

Il est ainsi intéressant d'emboîter une cloison 97 au bloc de jonction 1 pour que la partie de l'embout faisant saillie du bloc par l'ouverture 43 se loge dans l'ouverture 99 de cette cloison, en particulier afin de pouvoir disposer côte à côte, les uns contres les autres plusieurs ensembles ainsi formés (figure 23) sans que ces ensembles ne soient mutuellement gênés par les embouts de câblage voisins, chaque bloc de jonction venant alors prendre appui, par sa face 6 non pas contre la partie saillante de l'embout de câblage accueilli dans le bloc de jonction voisin mais contre la cloison 97 de ce bloc voisin.It is thus interesting to fit a partition 97 to the junction block 1 so that the portion of the tip projecting from the block through the opening 43 is housed in the opening 99 of this partition, in particular in order to be able to arrange next to each other several sets thus formed ( figure 23 ) without these sets are mutually impeded by the neighboring wiring ends, each terminal block then come to bear, by its face 6 not against the protruding portion of the cable end received in the adjacent terminal block but against the partition 97 of this neighboring block.

De plus les faces convexes 47, la cloison 48 et l'épaulement 48' ainsi que les bords 43' et 43" sont dimensionnés conjointement avec la cloison 97 pour garantir que, même pour un embout de câblage présentant un plus grand diamètre égal au diamètre maximal pouvant être reçu dans le conduit, la partie de cet embout faisant saillie du bloc par l'ouverture 43 du conduit puisse être entièrement logé dans l'ouverture 99 de la cloison 97 sans faire saillie de cette cloison.In addition, the convex faces 47, the partition 48 and the shoulder 48 'and the edges 43' and 43 "are dimensioned together with the partition 97 to ensure that, even for a wiring end having a larger diameter equal to the diameter. maximum that can be received in the conduit, the portion of this nozzle projecting from the block through the opening 43 of the conduit can be fully housed in the opening 99 of the partition 97 without protruding from this partition.

Ainsi, dans l'exemple illustré le bloc de jonction présente un pas de 5 mm et les conduits 32 sont adaptés à recevoir des embouts de câblage de plus grand diamètre maximal égal à 6 mm, tandis que la cloison 97 présente une épaisseur de 1 mm de façon à pouvoir loger dans chaque ouverture 99 les portions des embouts faisant saillie du bloc et ce jusqu'au diamètre maximal de 6 mm (soit une saillie latérale maximale d'environ 1 mm par rapport au bloc de jonction).Thus, in the example shown, the junction block has a pitch of 5 mm and the ducts 32 are adapted to receive wiring nozzles of greater maximum diameter equal to 6 mm, while the partition 97 has a thickness of 1 mm. so as to accommodate in each aperture 99 the portions of the end pieces projecting from the block up to a maximum diameter of 6 mm (ie a maximum lateral projection of about 1 mm with respect to the terminal block).

Un embout de plus grand diamètre supérieur à 6 mm ne peut être introduit à l'intérieur des conduits 32, ces conduits étant conformés pour qu'un tel embout vienne en butée contre les bords de l'ouverture 45 et empêchent ainsi son insertion.A tip of larger diameter greater than 6 mm can not be introduced into the ducts 32, these ducts being shaped so that such an endpiece abuts against the edges of the opening 45 and thus prevent its insertion.

Il a été décrit ci-dessus des embouts de câblage prévus pour former une portion d'extrémité d'un câble. Bien entendu, une telle portion d'extrémité peut être parfaitement constituée du câble lui-même présentant une âme conductrice rigide ou souple correspondant à l'élément 71 de l'embout 70 et une gaine isolante correspondant à l'enveloppe 72 de cet embout.It has been described above wiring tips provided to form an end portion of a cable. Of course, such an end portion may be perfectly constituted by the cable itself having a rigid or flexible conductive core corresponding to the element 71 of the nozzle 70 and an insulating sheath corresponding to the casing 72 of this nozzle.

Lorsque le câble est souple et dépourvu d'embout, il est nécessaire, avant de l'introduire dans le bloc de jonction, d'utiliser un outil tel que celui illustré en figure 8 afin d'appuyer sur la branche 58 pour écarter l'arête 61 de la paroi 56 et permettre au câble de pénétrer dans l'alvéole 54.When the cable is flexible and without a bit, it is necessary, before introducing it into the terminal block, to use a tool such as that illustrated in figure 8 to press the branch 58 to separate the edge 61 of the wall 56 and allow the cable to enter the cell 54.

Un autre mode de réalisation du bloc de jonction est représenté en figures 24 à 28.Another embodiment of the terminal block is shown in FIG. Figures 24 to 28 .

D'une manière générale, on a employé pour les éléments similaires les mêmes références, mais additionnées pour chaque mode de réalisation du nombre 100.In general, the same references have been used for similar elements, but added for each embodiment of the number 100.

Dans ce mode de réalisation les pions 140 et 141 sont réunis, l'extrémité du pion 140 formant un doigt plus fin que le pion 40 pour réduire l'effort de flexion et assurer un meilleur ajustement du tronçon incurvé 160 au sein du boîtier 102.In this embodiment the pins 140 and 141 are joined, the end of the pin 140 forming a finer finger than the pin 40 to reduce the bending force and ensure a better fit of the curved section 160 within the housing 102.

Le tronçon de nervure 131"' présente un renfoncement 136 en regard du tronçon de nervure 130" correspondant et est ainsi adapté à coopérer à encliquetage comme on le verra ci-après avec la barrette 103.The rib portion 131 "'has a recess 136 facing the corresponding rib portion 130" and is thus adapted to cooperate snap-in as will be seen hereinafter with the bar 103.

La cloison 122 n'est pas située ici au niveau de la face 106 mais à mi-chemin entre les faces 105 et 106 (si ce n'est sous le tronçon de nervure 131"') afin d'allonger au maximum les lignes de fuite entre éléments conducteurs.The partition 122 is not located here at the face 106 but midway between the faces 105 and 106 (if not under the rib section 131 "') in order to lengthen the lines as much as possible. leakage between conductive elements.

La barrette 103 présente deux bossages 149.The bar 103 has two bosses 149.

L'assemblage des lames ressort et de la barrette est réalisé de façon similaire à celle décrite pour le bloc de jonction 1. Chaque lame ressort est disposée dans le boîtier (figure 24) puis tournée (figure 25) pour laisser la place à la barrette 103 (figure 26).The assembly of the spring blades and the bar is made in a manner similar to that described for the terminal block 1. Each leaf spring is arranged in the housing ( figure 24 ) then tour ( figure 25 ) to make room for the bar 103 ( figure 26 ).

Dans ce mode de réalisation, lors de l'assemblage de la barrette, Les bossages 149 de cette barrette (figure 27) coopèrent à encliquetage avec les renfoncements 136 pour renforcer le maintien mécanique de la barrette 103 au boîtier 102 (figure 26).In this embodiment, during the assembly of the bar, the bosses 149 of this bar ( figure 27 ) cooperate snap-fit with the recesses 136 to enhance the mechanical retention of the bar 103 to the housing 102 ( figure 26 ).

Lors de l'encliquetage, le déport localisé sous le tronçon de nervure 131 "' de la paroi 122 au niveau de la face 106 permet à ce tronçon d'être suffisamment déformable et élastique pour assurer l'encliquetage de la barrette.When snapping, the offset located under the rib portion 131 "'of the wall 122 at the face 106 allows this section to be sufficiently deformable and elastic to snap the bar.

La branche 158 est ensuite fléchie pour passer un point dur par rapport à la barrette afin qu'elle vienne en regard de la paroi 156 de la cage 155 (figure 27).The branch 158 is then flexed to pass a point hard relative to the bar so that it comes opposite the wall 156 of the cage 155 ( figure 27 ).

Comme pour le bloc de jonction 1, la barrette 103 du bloc 101 présente une fenêtre 163 pour que ce bloc puisse recevoir le pied de contact 80 (figure 28).As for the terminal block 1, the bar 103 of the block 101 has a window 163 so that this block can receive the contact foot 80 ( figure 28 ).

Un autre mode de réalisation du bloc de jonction est représenté en figures 29 à 35. Dans ce mode de réalisation, la barrette 203 est rectiligne et présente un tronçon central 250 dont chaque extrémité est reliée à l'extrémité d'un tronçon 252 muni d'une oreille 253 dont une face forme, comme on le verra ci-après, une butée pour une lame ressort 204 correspondante. L'extrémité de chaque tronçon 252 opposée à celle reliée au tronçon 250 est reliée à une extrémité d'un tronçon 251 muni d'une alvéole 254.Another embodiment of the terminal block is shown in FIG. Figures 29 to 35 . In this embodiment, the bar 203 is rectilinear and has a central section 250, each end of which is connected to the end of a section 252. provided with an ear 253, one face forms, as will be seen hereinafter, a stop for a corresponding leaf spring 204. The end of each section 252 opposite to that connected to the section 250 is connected to one end of a section 251 provided with a cell 254.

Contrairement aux contremarches 52 reliées transversalement aux tronçons 50 et 51, les tronçons 252 sont reliés dans le prolongement du tronçon 251 voisin et du tronçon central 250.Unlike the risers 52 connected transversely to the sections 50 and 51, the sections 252 are connected in the extension of the neighboring section 251 and the central section 250.

Chaque oreille 253 est inclinée en direction de l'alvéole 254 correspondante, de sorte que l'oreille forme avec le reste du tronçon 252 le plus proche de l'alvéole 254 un angle aigu.Each lug 253 is inclined towards the corresponding cell 254, so that the ear forms with the rest of the section 252 closest to the cell 254 an acute angle.

Le boîtier isolant 202 présente sous la nervure 230 un doigt 264 adapté à coopérer avec le tronçon 250 et le tronçon 252 correspondant.The insulating housing 202 has under the rib 230 a finger 264 adapted to cooperate with the section 250 and the corresponding section 252.

Pour chaque lame ressort 204, la branche 259 comporte un tronçon droit 269 et un tronçon droit 262 reliés l'un à l'autre de façon à ce que la branche 259 présente une forme coudée, avec le tronçon 262 qui est tourné du côté opposé à la branche 258 et qui regarde la face de l'oreille 253 la plus proche de l'alvéole.For each spring blade 204, the branch 259 comprises a straight section 269 and a straight section 262 connected to each other so that the branch 259 has a bent shape, with the section 262 which is turned on the opposite side at branch 258 and looking at the face of the ear 253 closest to the cell.

Les différentes étapes d'assemblage illustrées en figures 30 à 33 sont semblables à celles décrites dans les modes de réalisation précédents si ce n'est que dans ce cas, la barrette 203 est introduite entre les doigts 264 et les nervures 231 "' (l'oreille 253 longeant ce doigt en venant se placer à côté de lui) et que c'est le tronçon 262 qui vient en butée contre l'oreille 253 (figure 33).The different assembly steps illustrated in Figures 30 to 33 are similar to those described in the previous embodiments except that in this case, the bar 203 is introduced between the fingers 264 and the ribs 231 "'(the ear 253 along this finger coming to stand next of him) and that it is the section 262 which abuts against the ear 253 ( figure 33 ).

La branche 259 est ici coudée de façon à coopérer efficacement avec l'oreille inclinée 253 correspondante, le tronçon 262 étant disposé en regard de celle-ci.The branch 259 is here bent so as to cooperate effectively with the inclined lug 253 corresponding, the section 262 being disposed opposite it.

L'inclinaison de chaque oreille 253 en direction de l'alvéole 254 correspondante permet de reprendre une partie des efforts qui s'exercent sur le boîtier transversalement à la barrette par l'intermédiaire de la lame ressort 204 lorsqu'un conducteur est inséré dans l'alvéole.The inclination of each lug 253 towards the corresponding cell 254 makes it possible to take back part of the forces exerted on the casing transversely to the lug by means of the leaf spring 204 when a conductor is inserted into the lug. alveolus.

En effet dans ce cas, le tronçon 262 de la lame ressort est plaqué contre l'oreille correspondante qui reprend ainsi une partie des efforts de sorte que le tronçon incurvé 260 de cette lame est moins sollicité à déplacement en direction de la face 207 et ne vient donc pas exercer une pression excessive contre le boîtier isolant au niveau de la paroi de ce boîtier située à l'opposé du pion 240 par rapport à ce tronçon 260.Indeed in this case, the section 262 of the spring blade is pressed against the corresponding ear which thus takes up part of the forces so that the curved section 260 of this blade is less biased to move towards the face 207 and not therefore does not exert excessive pressure against the casing insulation at the wall of this housing located opposite the pin 240 relative to this section 260.

Les principaux efforts mécaniques transversaux à la barrette s'exercent ainsi au niveau de l'oreille métallique 253 plutôt qu'au niveau du boîtier isolant.The main mechanical forces transverse to the bar and are exerted at the level of the metal lug 253 rather than at the level of the insulating housing.

De plus, la structure non plus en podium mais droite de la barrette simplifie grandement sa fabrication et réduit ainsi significativement son prix de revient.In addition, the structure no longer podium but right of the bar greatly simplifies its manufacture and significantly reduces its cost.

Dans une variante non représentée, chaque oreille 253 est reliée au reste du tronçon 252 en formant un angle droit et/ou la force à exercer pour franchir le point dur pour chaque lame ressort afin d'être disposée en regard du siège de l'alvéole correspondante est très faible voire inexistante en fonction du jeu d'assemblage non reproductible des différents éléments entre eux (boîtier, lames, barrette).In a variant not shown, each lug 253 is connected to the remainder of the section 252 at a right angle and / or the force to be exerted to cross the hard point for each leaf spring to be arranged opposite the seat of the cell corresponding is very low or non-existent depending on the set of non-reproducible assembly of the different elements together (housing, blades, bar).

Dans d'autres variantes non représentées, le bloc de jonction est conçu pour recevoir non pas deux mais au moins trois conducteurs disposés sur un ou plusieurs étages du bloc de jonction.In other variants not shown, the terminal block is designed to receive not two but at least three conductors arranged on one or more stages of the terminal block.

De nombreuses autres variantes sont possibles en fonction des circonstances, et l'on rappelle à cet égard que l'invention se limite aux revendications suivantes.Many other variations are possible depending on the circumstances, and it is recalled in this regard that the invention is limited to the following claims.

Claims (20)

  1. Terminal block comprising:
    - a conducting bar (3; 103; 203) having a segment (51; 151; 251) provided with a socket (54; 154; 254) for receiving an end portion (70) of an electric cable, said socket (54; 154; 254) being delimited in part by a seat (56; 156; 256);
    - a spring blade (4; 104; 204) having a first (58; 158; 258) and a second (59; 159; 259) branch and a curved segment (60; 160; 260) interconnecting said first and second branches, said spring blade (4; 104; 204) being adapted to deform to allow said end portion (70) of the cable to be inserted between said seat (56; 156; 256) and the end edge (61; 161; 261) of said first branch (58; 158; 258) when said cable is engaged in said socket (54; 154; 254), and to clamp said end portion (70) of the cable between said seat (56; 156; 256) and said end edge (61; 161; 261) if an attempt is then made to remove said cable from said block; and
    - an insulating housing (2; 102; 202) having a recess (39; 139; 239) for receiving said bar (3; 103; 203) and said spring blade (4; 104; 204), and an introduction conduit (32; 132; 232) of said end portion (70) of the cable, said introduction conduit (32; 132; 232) leading into said socket (54; 154; 254);
    characterised in that said segment (51; 151; 251) provided with a socket (54; 154; 254) belongs to a portion of said bar (3; 103; 203), said portion also having a segment (52; 152; 252) provided with a stop, one end of which is connected to an end of said segment (51; 151; 251) provided with a socket, and in that the end portion of said second branch (59; 159; 259) faces, on the opposite side from said first branch (58; 158; 258), said stop of said bar (3; 103; 203).
  2. Block according to claim 1, characterised in that said segment (51; 151) provided with a socket (54; 154) and said segment (52; 152) provided with a stop are connected transversely, said portion to which said segment (51; 151) provided with a socket (54; 154) and said segment (52; 152) provided with a stop belong being an L-shaped portion.
  3. Block according to claim 1, characterised in that said segment (251) provided with a socket and said segment (252) provided with a stop are in the extension of one another.
  4. Block according to any of claims 1 to 3, characterised in that said segment (252) provided with a stop comprises, on the side opposite said socket (254), a lug (253), the face of which closest to said socket (254) forms said stop.
  5. Block according to claim 4, characterised in that said lug (253) is inclined in the direction of said socket (254).
  6. Block according to claim 5, characterised in that said second branch (259) of said spring blade (204) has a bent shape adapted to cooperate with said lug (253).
  7. Block according to any of claims 1 to 6, characterised in that said spring blade (4; 104; 204) is adapted to deform to cross a hard spot with respect to said bar (3; 103; 203) in order to arrange said end edge (61; 161; 261) of the first branch (58; 158; 258) of said blade (4; 104; 204) facing said seat (56; 156; 256) in said socket (54; 154; 254).
  8. Block according to any of claims 1 to 7, characterised in that said housing (2; 102; 202) comprises two main faces (5, 6; 105, 106; 205, 206) connected by side faces (7, 8, 9, 10; 107, 108, 109, 110; 207, 208, 209, 210), said introduction conduit (32, 132, 232) having a region (44; 144; 244) in common with said receiving recess (39; 139; 239), which region is closed, at least in part, at the level of the two main faces (5, 6; 105, 106; 205, 206), the portion of the receiving recess (39; 139; 239) which is distinct from said common region (44; 144; 244) being open, at least in part, at the level of one of said main faces (5, 6; 105, 106; 205, 206) in order to receive said bar (3; 103; 203) and said spring blade (4; 104; 204).
  9. Block according to claim 8, characterised in that said common region (44; 144; 244) opens into said socket (54; 154; 254) and in that the end portion of said first branch (58; 158; 258) of the spring blade is arranged in said common region (44; 144; 244).
  10. Block according to claim 9, characterised in that said housing (2; 102; 202) comprises a ramp for guiding said end portion of said first branch (58; 158; 258) of the spring blade (4; 104; 204) towards said common region (44; 144; 244).
  11. Block according to claim 10, characterised in that said ramp belongs to a corner (42; 142; 242).
  12. Block according to any of claims 1 to 11, characterised in that said housing (2; 102; 202) comprises, in said receiving recess (39; 139; 239), a pin (40; 140; 240) around which said spring blade (4; 104; 204) is arranged.
  13. Block according to claim 12, characterised in that said pin (40; 140; 240) is located between said first and second branches (58, 59; 158, 159; 258, 259) of said spring blade (4; 104; 204), in proximity to said curved segment (60; 160; 260).
  14. Block according to claim 13, characterised in that said housing (2; 102; 202) comprises, in said receiving recess (39; 139; 239), another pin (41; 141; 241) situated between said first and second branches (58, 59; 158, 159; 258, 259) of said spring blade (4; 104; 204) and opposite said curved segment (60; 160; 260) relative to said pin (40; 140; 240).
  15. Block according to any of claims 1 to 14, characterised in that said bar (103; 203) has snap-in means (149; 249) adapted to cooperate with complementary snap-in means (136, 131"'; 236, 231"') of said housing (102; 202).
  16. Block according to claim 15, characterised in that said snap-in means of said bar (103; 203) comprise at least one boss (149; 249) and said complementary snap-in means of said housing (102; 202) comprise a wall (131"'; 231"') having a recess (136; 236) adapted to receive said boss (149; 249).
  17. Block according to claim 16, characterised in that said wall (131"'; 231"') is flexible.
  18. Block according to claim 1, characterised in that said block comprises two said spring blades (4; 104; 204) and in that said bar (3; 103; 203) comprises two said portions each having a segment (52; 152; 252) provided with a stop and a segment (51; 151; 251) provided with a socket (54; 154; 254), said bar also comprising a central segment (50; 150; 250), each end of which is connected respectively to one of said portions by the end of the segment (52; 152; 252) provided with a corresponding stop opposite that connected to the segment (51; 151; 251) provided with a socket.
  19. Block according to claim 18, characterised in that each said segment (52; 152) provided with a stop is connected transversely to said central segment (50; 150) and to said corresponding segment (51; 151) provided with a corresponding socket (54; 154).
  20. Block according to claim 18, characterised in that said segments (252) provided with a stop, said segments (251) provided with a socket (254) and said central segment (250) are in the extension of one another, said bar (203) being straight.
EP07107549A 2006-05-22 2007-05-04 Terminal block for electrical conductors Active EP1860735B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07107549T PL1860735T3 (en) 2006-05-22 2007-05-04 Terminal block for electrical conductors

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0651883A FR2901418B1 (en) 2006-05-22 2006-05-22 JUNCTION BLOCK FOR ELECTRICAL CONDUCTORS
FR0654723A FR2901419B1 (en) 2006-05-22 2006-11-03 JUNCTION BLOCK FOR ELECTRICAL CONDUCTORS

Publications (2)

Publication Number Publication Date
EP1860735A1 EP1860735A1 (en) 2007-11-28
EP1860735B1 true EP1860735B1 (en) 2013-03-20

Family

ID=38268731

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07107549A Active EP1860735B1 (en) 2006-05-22 2007-05-04 Terminal block for electrical conductors

Country Status (4)

Country Link
EP (1) EP1860735B1 (en)
ES (1) ES2404285T3 (en)
FR (1) FR2901419B1 (en)
PL (1) PL1860735T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015113512B3 (en) * 2015-08-17 2016-12-22 Phoenix Contact Gmbh & Co. Kg Clamping arrangement and spring clamp

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009050367A1 (en) 2009-10-22 2011-04-28 Phoenix Contact Gmbh & Co. Kg Spring clamp connection terminal
DE102010009158B4 (en) * 2010-02-24 2019-10-31 Phoenix Contact Gmbh & Co. Kg Spring terminal connection for electrical plug-in connection with an electrical conductor
DE102011108828B4 (en) * 2011-07-29 2013-06-27 Phoenix Contact Gmbh & Co. Kg Electrical connection device
CN202496145U (en) * 2012-03-09 2012-10-17 内江市金蜀电力金具有限公司 Drawer type electrical control cabinet
CN107959152B (en) * 2017-11-30 2024-04-02 韩天翔 Signal connector
DE202018101731U1 (en) 2018-03-28 2019-07-01 Wago Verwaltungsgesellschaft Mbh Conductor connection terminal, clamping spring of a conductor connection terminal and terminal block

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2759848C1 (en) * 1977-08-20 1982-12-16 Phönix Elektrizitätsgesellschaft H. Knümann GmbH & Co KG, 4933 Blomberg Screwless connection terminal
DE19940971B4 (en) * 1999-08-20 2009-06-10 Wago Verwaltungsgesellschaft Mbh Electrical conductor terminal with a busbar
DE10103107B4 (en) * 2000-12-20 2007-07-12 Hager Electro Gmbh Terminal for electrical conductors
DE102004020958B3 (en) * 2004-04-28 2005-08-25 Rose Systemtechnik Gmbh Connection clip for cables, used e.g. in terminal blocks or on circuit boards, includes spring connections in differing configurations at either end of conductor strip

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015113512B3 (en) * 2015-08-17 2016-12-22 Phoenix Contact Gmbh & Co. Kg Clamping arrangement and spring clamp

Also Published As

Publication number Publication date
EP1860735A1 (en) 2007-11-28
FR2901419A1 (en) 2007-11-23
PL1860735T3 (en) 2013-08-30
FR2901419B1 (en) 2008-12-12
ES2404285T3 (en) 2013-05-27

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