EP2503643B1 - Dispositif de serrage pour le raccordement de conducteurs électriques et outil à cet effet - Google Patents

Dispositif de serrage pour le raccordement de conducteurs électriques et outil à cet effet Download PDF

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Publication number
EP2503643B1
EP2503643B1 EP12161045.5A EP12161045A EP2503643B1 EP 2503643 B1 EP2503643 B1 EP 2503643B1 EP 12161045 A EP12161045 A EP 12161045A EP 2503643 B1 EP2503643 B1 EP 2503643B1
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EP
European Patent Office
Prior art keywords
clamping
clamping device
longitudinal direction
receptacles
receptacle
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
EP12161045.5A
Other languages
German (de)
English (en)
Other versions
EP2503643A1 (fr
Inventor
Jens-Peter Kunzmann
Matthias Grand
Joerg Valerius
Detlef Wollenberg
Dirk Beckmann
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.)
Tyco Electronics Raychem GmbH
Original Assignee
Tyco Electronics Raychem GmbH
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
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Publication of EP2503643A1 publication Critical patent/EP2503643A1/fr
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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
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
    • H01R43/22—Hand tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/5804—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable comprising a separate cable clamping part
    • H01R13/5812—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable comprising a separate cable clamping part the cable clamping being achieved by mounting the separate part on the housing of the coupling device
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2107/00—Four or more poles
    • 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
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/36—Conductive members located under tip of screw

Definitions

  • the invention relates to a clamping device for connecting extending in a longitudinal direction electrical conductors and a tool for mounting a clamping block and / or a sliding nut in such a clamping device.
  • An inventive kit comprises the clamping device and at least one tool.
  • the clamping device according to the invention is intended in particular for voltages up to 1 kV as well as conductors with cross-sectional areas over 1.5 mm 2 , in particular in the range of 16 mm 2 and 25 mm 2 .
  • Such conductors are used in the low voltage range in particular for cable routes in the ground or in the air in power engineering.
  • the lanterns of streets are powered by such cable routes with energy.
  • the large conductor cross sections ensure even with long cable routes to only low line losses.
  • cables are to be interconnected by their stripped stripped conductors are brought into contact with each other electrically conductive. This is usually done by mechanically bringing the stripped ends of the conductors of the cables to be connected together into contact with each other.
  • an end-stripped branch cable is electrically connected to a stripped portion of the uncut through-cable.
  • clamping devices must absorb high forces and are built to robust. Such clamping devices are for example in the DE-A-1245464 and the DE-A-1277977 shown.
  • a disadvantage is the relatively high cost of materials that must be operated to keep the individual conductors spaced from each other and to reliably isolate each other.
  • the DE 17 54 437 U relates to a terminal for connecting electrical lines.
  • the clamp consists of an insulating body with longitudinal openings therethrough for loosely inserted, metallic connectors and screwed into this from the side of clamping screws. By this clamping screws, the connecting pieces are held in the insulating body and the wall of the insulating body is pierced by a reaching through to the longitudinal opening longitudinal slot in which the heads of the clamping screws are held.
  • an electrical connector having a plurality of separate insulating housings in each of which an electrically conductive body, which can receive a conductor end, and a clamping body for fixing the conductor ends in the conductive body, are arranged.
  • the US 4,053,202 discloses a clamping device with a base body and a clamping module.
  • the terminal block is locked to the base body, to which the base body has latching hooks, which engage in grooves on the upper side of the terminal block.
  • the US 2004/0229518 A1 shows a terminal block assembly comprising a housing having a base portion and partitions defining a cavity and a terminal connector mounted in the cavity.
  • the invention is based on the object to improve the known clamping devices to the effect that they can be manufactured without sacrificing stability with less material.
  • this object is achieved by an aforementioned clamping device with a support member made of an electrically insulating material having at least two in a direction transverse to the longitudinal direction transverse direction adjacent, longitudinally open receptacles, in each of which at least one terminal block with a movable against at least one conductor Clamping device can be used, wherein the receptacle and the terminal blocks are provided with engageable designed fasteners and wherein the fasteners are configured to receive a transversely across the recording acting transversal force and initiate the at least one arranged in the recording terminal block and adjacent thereto Shooting in the longitudinal direction are arranged one behind the other and between two longitudinally at a height shots a transverse to the transverse and the longitudinal direction, ie in the mounting direction, continuous ig open passband is provided.
  • transverse forces which arise due to the bent conductor or due to cable movements, are no longer conducted solely on the recording, but at least in part via the terminal block.
  • the terminal block is thus arranged in the power flow of the transverse force and the carrier element is relieved. Due to the large conductor cross-sections, the terminal block already inherently has a high degree of stability in order to receive the clamping forces required to produce a secure mechanical and thus electrical contact between the conductors of the interconnected cables. According to the invention, this stable mechanical structure is used to absorb the transverse forces, which are low compared to the clamping forces acting on the conductors in the receptacle.
  • transverse forces can not buckle up even in the case of a filigree carrier element.
  • the cost of materials for the carrier element decreases.
  • a smaller width of the clamping device in the transverse direction can be achieved by adjacent receptacles are arranged one behind the other in the longitudinal direction and at least partially overlap in particular in the longitudinal direction.
  • This staggered arrangement in the longitudinal direction has the further advantage that, although due to the transverse force introduced at least in part by the fastening elements into the clamping components, the individual receptacles are very stiff, but the staggered receptacles result in a longitudinally flexible clamping device.
  • the positional differences of the conductors which can arise in particular after installation of the clamping device over a longer period of time in the cable can be compensated without the clamping in the terminal block is compromised.
  • the use of the clamping device in gel sleeves is advantageous.
  • the open one Passage area allows the gel to enter and tile around the ladder in that location.
  • the receptacles can open in a mounting direction pointing transversely to the transverse direction as well as transversely to the longitudinal direction. This facilitates the insertion of the conductors into the receptacles, especially when the clamping device has to be fastened to a ground cable in a ground hole.
  • the individual conductors can namely be pre-bent in this embodiment and then placed in the mounting direction from above into the receptacle. This is much easier to accomplish than threading the ladder longitudinally.
  • the threading of the ladder can be further facilitated by the fact that the recordings in the mounting direction to a reason at which the conductors rest in the clamped state, taper, so that with increasing depth of the conductor in the mounting direction, the inside width in the transverse direction of the receptacles tapers ,
  • the insertion of the conductors can also be simplified in that the receptacles extend in a channel shape in the longitudinal direction.
  • a gutter is open on one side and thus allows the insertion of the ladder.
  • the receptacles can have a substantially U-shaped cross section in a plane lying transversely to the longitudinal direction. Through the opening of such a cross section can also insert the ladder.
  • the fastening elements are arranged on both sides of a transversely extending insertion opening of a receptacle. By this arrangement prevents the recording widens due to the lateral force.
  • the fastening elements are preferably located on the opposite in the mounting direction, opposite edges of the insertion opening.
  • the fastening elements of several, preferably all recordings lie substantially in one plane. This measure ensures that lateral forces can be directed in a straight line over several receptacles.
  • the fastening elements can be designed as positively locking engageable positive locking elements.
  • the form-fitting elements can in particular form a longitudinal guide which extends in the longitudinal direction, through which the clamping modules are guided along the longitudinal direction in the receptacles.
  • the interlocking elements can lock in the transverse direction, so that the transverse force can be passed by the inclusion in the terminal block and vice versa by the positive connection.
  • the interlocking elements also lock in the mounting direction to prevent falling out of the terminal block from an open in the mounting direction recording.
  • the fastening elements can also have transversely extending into the receptacle positive locking elements and / or longitudinally extending guide and hold-down surfaces facing in a direction transverse to the transverse and longitudinal direction.
  • the clamping device in a gel-filled sleeve for example, the gel sleeve RayGel Tyco Electronics to be included
  • the recordings are arranged in a plane next to each other. This results in a low overall height, so that a low filling level of gel in the sleeve is necessary to seal the clamping device.
  • the carrier element is preferably an injection-molded element made of an electrically insulating plastic, such as polypropylene.
  • an edge of a receptacle pointing in a mounting direction can continue in the longitudinal direction in the edge of an adjacent receptacle.
  • the receptacles can be connected to one another by a transverse stiffening wall. Due to the course in the transverse direction, the support element is stiffened.
  • the stiffening wall is transverse to the longitudinal direction. In this orientation, the stiffening wall has only a small Cross section for the incoming gel in the mounting direction, so that the forces required to close the gel sleeve are low.
  • the receptacles can enforce the stiffening wall at least with part of their cross-sectional area, so that the conductors can be inserted into the receptacle from both sides, or the receptacle can be placed against the conductors.
  • Neighboring receptacles may project alternately on one side of the stiffening wall in the longitudinal direction, which increases the flexibility of the support element.
  • the width of the recordings in the case of a U-shaped and / or channel-shaped receptacle, this is in particular the width at the base of the receptacle, corresponds at least to the conductor diameter, but not more than 1.2 to 1.5 times, so that the conductors can not lie next to one another , which would greatly affect the clamping effect generated by the clamping member and thus the electrical and mechanical contact.
  • the stiffening wall can, in particular in the longitudinal direction, form stops for the terminal blocks. This leads on the one hand to a reinforcement of the stiffening wall, which continues in this way in the recording, on the other hand, the position of the terminal blocks is determined to each other and for receiving.
  • the support member may have protrusions projecting into the receptacles, which bear frictionally against the terminal block and hold it in its position.
  • a protective wall which is arranged upstream of the receptacle along the longitudinal direction and which surrounds the latter at least in sections, is provided.
  • the conductors assigned to the different receptacles are additionally separated by the insulating material of the carrier element.
  • the terminal block may have a U-shaped and / or channel-shaped clamping bracket, which nestles in the receptacle of the support element.
  • the clamping bracket is preferably made of a metal material to absorb the forces occurring during the clamping of the conductors and to reduce the resulting in the connection of the two conductors electrical resistance.
  • a disk-shaped or plate-shaped sliding nut can be arranged, which is provided with the clamping member.
  • the U-shaped conductor receiving the terminal block is pre-assembled in the clamping device, so that when mounting the clamping device on site this no longer used in recording, in particular must be inserted.
  • the sliding nut can be designed to be inserted in the longitudinal direction in the ladder receiving. It can thus be easily adjusted to cover the ladder in the recording or autismfact exactly.
  • the clamp can, in order to facilitate the insertion of the slide nut, longitudinally Kirbyde guide members which define the slide nut in the mounting direction.
  • the clamp has a ladder mount that can expand in the mounting direction away from your floor to facilitate ladder insertion.
  • the extension may be stepped to form a shoulder as a guide surface for the sliding nut.
  • the sliding nut may be provided at its transverse ends and / or in the region of these ends with fastening elements which lock the sliding nut in the transverse direction and at least partially direct the transverse force over the sliding nut. As a result, a particularly strong stiffening of the recording is achieved.
  • the sliding nuts of various receptacles are preferably arranged in a plane. Furthermore, the sliding nuts are offset at the level of the fasteners of the terminal blocks or only slightly offset from these levels to direct the transverse forces as directly as possible from the fasteners in the sliding nut and back again.
  • the sliding nuts are preferably delivered preassembled with a tool, which facilitates mounting on the remaining terminal block.
  • the clamping device according to the invention may be designed as a kit that includes the pre-assembled in the support member clamping bracket as a part and pre-mounted on the tool slide nuts as another part.
  • the invention also relates to the tool with which the slide nuts are mounted in the clamping device.
  • the tool according to the invention is defined in claim 15.
  • Such a tool has a handle, at one end of a longitudinally insertable into the receptacle holding head of the holding head against rotation on the sliding nut and the clamping member is arranged fastened.
  • the clamping member is a movable in the receptacle or conductor receiving screw, such as a grub screw
  • the tool is attached to the operating end of the screw. This can be achieved in a simple manner by frictional engagement by the inclusion of the tool has a smaller inside diameter than the clamping member.
  • This embodiment has the advantage that upon actuation of the clamping member, in which this is moved into the conductor receiving the clamping member gradually out of engagement with the tool. When the clamping operation is completed, the tool can be removed from the slide nut without much effort.
  • the tool is preferably rotationally connected to the sliding nut, so that a rotational movement of the rotary member does not lead to a rotation of the sliding nut and the tool always has the same orientation to the sliding nut.
  • the rotation can have a voltage applied to the slide nut retaining edge.
  • FIG. 1 shows an opened sleeve 1, which serves to connect conductors 2 of a cable 4 with conductors 6 of a cable 8.
  • the conductors 2 of the cable 4 are each connected to the conductors 6 of a cable 8.
  • the conductors 2, 6 have a cross section of at least 1.5 mm 2 , typically 16 mm 2 or 25 mm 2 . Cables 4, 8 with such conductors 2, 6 are used, for example, in laid underground cable routes for the energy supply of street lighting and in building services.
  • the respective conductors 2, 6 are connected to one another by a clamping device 10 arranged in the sleeve 1.
  • the clamping device 10 has a plurality of receptacles 12, in each of which the conductors 2, 6 to be connected to one another are inserted and electrically brought into contact with each other.
  • each receptacle 12 is provided with a clamping member 14, for example in the form of a grub screw provided with an internal hexagon at an actuating end 16.
  • the number of receptacles 12 is adapted to the number of pairs of conductors to be connected.
  • the stripped ends of the conductors 2, 6 are mechanically pressed against each other, so that between them an electrical contact is made.
  • the clamping device 10 is preferably intended for use in sleeves 1, which are filled with a gel 21, in which the clamping device 10 is immersed in the closed socket 1, so that no moisture can get to the stripped conductor ends and can lead to short circuits.
  • a gel 21 in which the clamping device 10 is immersed in the closed socket 1, so that no moisture can get to the stripped conductor ends and can lead to short circuits.
  • FIG. 1 only one half-shell 22 is shown filled with the gel 21.
  • the clamping device 10 receiving half-shell 24 is also filled with gel up to a filling line 26, which is omitted in the illustration, however, to release the view of the clamping device 10.
  • the receptacles 12 are arranged in a plane and not one above the other. By a staggered arrangement one behind the other also results in a narrow construction, so that even narrow sleeves 1 can be used.
  • the clamping device 10 is designed so that it sets the smallest possible flow resistance against the resulting flow of the gel 20 during collapse of the half-shells 22, 24. On the one hand, this results in the clamping device 10 being well penetrated by the gel 20 and shielded from external influences. On the other hand, due to the permeable design of the clamping device 10, the forces required to close the sleeve 1 are low.
  • 28 denotes a longitudinal direction, which corresponds essentially to the direction in which the conductors 2, 6 (FIG. FIG. 1 ) are guided by the clamping device 10.
  • the receptacles 12 are arranged side by side in a transverse direction 30.
  • a mounting direction 32 extends transversely to both the longitudinal direction 28 and the transverse direction 30.
  • the clamping device 10 has an electrically insulating carrier element 34, which is preferably made of a plastic.
  • the carrier element 34 is in particular an injection-molded part.
  • the support member 34 forms the receptacles 12, which, like FIG. 2 shows, with respect to the mounting direction 32 are arranged at the same height.
  • Adjacent receptacles 12 are each staggered one behind the other in the longitudinal direction 28 and overlap in the longitudinal direction 28 at the edges located in the transverse direction 30.
  • the receptacles extend continuously in the longitudinal direction 28 in order to allow the conductors 2, 6 to pass through.
  • the receptacles 12 in the mounting direction with the bent-apart, prepositioned ladders 2, 6 can be simply plugged together in mounting direction 32, they have a lying in the mounting direction, a base 36 of the receptacle opposite side in the longitudinal direction 28 a continuous insertion opening 38.
  • the clear width of the insertion opening 38 in the transverse direction 30 corresponds at least to the maximum conductor diameter for which the clamping device 10 is intended.
  • the receptacles are U-shaped or channel-shaped.
  • a longitudinally extending, upper edge 40 of the insertion opening of a receptacle 12 continues in each case as an edge 40 on a side adjacent receptacle.
  • the edge 40 is located at the end of the legs 41. This facilitates the threading of the superposed, stripped ends of the conductors 2, 6 in the receptacle 12th
  • Adjacent receptacles 12 can each terminate at a common, transverse to the longitudinal direction 28 stiffening wall 42. From the stiffening wall 42, a wall 44 surrounding the receptacle 12 projects in each case in the longitudinal direction alternately to one side or the other. The stiffening wall 42 is in the longitudinal direction 28 at the locations of the receptacles 12 each broken.
  • a passage 46 which is open in the mounting direction 32. This passage serves to reduce the flow resistance of the clamping device 10 when used in sleeve-filled sleeves (cf. FIG. 1 ) and to facilitate the flow of gel in the mounting direction 32.
  • the two in the transverse direction 30 outer shots also have in the longitudinal direction 28 on the stiffening wall 42 continuing edges 40 to allow the threading of the conductors 2, 6 also in the outer receptacles 12 and to obtain additional lateral electrical insulation.
  • the carrier element 34 furthermore has fastening means 48 with which the clamping device is attached to the sleeve 1 (FIG. FIG. 1 ) is attachable.
  • the fastening means 48 may be part of a positive, frictional or non-positive connection. They may in particular comprise latching hooks and / or recesses.
  • the receptacles 12 are also provided on the legs 41 preferably in the region of the edges 40 with fastening elements 50, which are in engagement with corresponding fastening elements 52 of the clamping block 18.
  • the fastening means 50, 52 in particular allow insertion of the clamping blocks 18 into the respective receptacle along the longitudinal direction 28.
  • the clamping blocks 18 in the receptacles are provided by frictional engagement elements 88 (FIG. Fig. 4 ) held frictionally.
  • the frictional engagement elements may include protrusions projecting from the wall 44, which press against the clamping components 18. Due to the frictional fixing of the clamping blocks 18 in the longitudinal direction, a yielding movement of the clamping blocks 18 is possible with large forces acting in the longitudinal direction 28.
  • the fastening elements 50, 52 are further configured such that they absorb the transverse force 20, which acts in the transverse direction 30 over the receptacle 12 or its insertion opening 38 and in the arranged in the receptacle 12 terminal block 18 initiate.
  • the resulting force flux 54 is in FIG. 2 schematically represented by a dashed line. It can be seen that the transverse force 20 acting on the carrier element 34 is introduced into the clamping module by the fastening elements 50, 52 and is reintroduced into the receptacle 12 via the clamping module in the transverse direction on the opposite side.
  • the clamping blocks 18 are already built very stable to absorb the high, generated by the clamping member 14, acting on the conductors 2, 6 clamping forces.
  • the clamping forces 56 are greater than the transverse forces 20 to be expected during operation.
  • the clamping module 18 need not be reinforced in order to absorb and forward the transverse force 20.
  • the support member 34 may be constructed filigree and material-saving.
  • the arrangement of the fasteners 50 on the edge 40 directs the flow of force into the terminal block before it reaches the legs 41.
  • the fastening elements 50, 52 may be designed, in particular, as positive-locking elements projecting into the respective receptacle 12.
  • the receptacle-side positive-locking element 50 may have a groove 58 which opens toward the base 36 of the receptacle in the mounting direction 32, into which protrusion 60 of the terminal block protrudes.
  • the projection 60 projects in the mounting direction 32 from the terminal block 18.
  • the introduction of the transverse force 20 of the receptacle 12 in the clamping block 18 is ensured by the fact that the groove 58 includes the projection 16 in the transverse direction 30 on both sides.
  • the groove 58 also forms a longitudinal direction 28 extending guide surface 62, which facilitates the insertion of the clamping block 18 in the receptacle.
  • the guide surface 62 simultaneously forms a hold-down surface, which blocks a movement of the clamping block 18 in the mounting direction 28.
  • the clamping module 18 is preferably made of a metal material in order to absorb the forces occurring during the clamping of the conductors 2, 6, despite the smaller sizes.
  • the terminal block 18 has in the in FIGS. 2 and 3 illustrated embodiment a the clamping member 14 supporting sliding nut 64.
  • the sliding nut 64 may be inserted directly into the receptacle 12, so that the conductors 2, 6 are pressed against the bottom 36 of the receptacle 12.
  • the sliding nut 64 can be provided with the fastening or clamping elements 52 be.
  • the clamping devices are primarily intended, but this would require that the support member 34 is made of a high strength material.
  • the sliding nut 64 is held in a clamping bracket 66.
  • the clamp has transversely to the longitudinal direction 28 has a substantially U-shaped cross-section. Its outer contour preferably corresponds to the inner contour of the receptacle 12, so that it nestles in the receptacle 12.
  • the fastening elements 52 are located at the ends of the legs 67 which are located in the mounting direction 32 and which, together with the base 70, enclose the conductor receptacle 68 on three sides.
  • the sliding nut 64 can be inserted in the longitudinal direction 28 in the clamping bracket 66.
  • the clamping bracket 66 encloses in the transverse direction a conductor receptacle 68 which receives conductors 2, 6 to be connected to one another.
  • a protruding surface structure 72 may be arranged in the conductor receptacle 68, which presses under the effect of the clamping force 56 in the surface of the possibly oxidized conductors 2, 6, so that the metallic contact is improved.
  • the conductor receptacle 68 tapers in the mounting direction 32 towards the base 70. This is done, for example, by a stepped taper at a predetermined distance 73 from the base 70. The taper results in an insertion opening 38 facing shoulder 74, which together with clamp-side fasteners 76 and slide nut side fasteners 78 extending in the longitudinal direction 28 guide for the sliding nut 64th form and determines its location in mounting direction 32. Through this guide, the sliding nut 64 is less easily lost during assembly and prevents the spreading of the clamp 66th
  • the fastening elements 76, 78 overlap in the transverse direction 30, so that the force flow 54 conducted via the fastening elements 50, 52 from the carrier element to the clamping bracket 66 is conducted via the fastening elements 76, 78 into the sliding nut 64.
  • the power flow 54 is directed into the sliding nut 64 to relieve the legs 67.
  • at least a portion of the power flow 54 is not guided over the bottom 70 of the retaining clip but as directly as possible on the opposite side in the transverse direction 30 of the recording.
  • a direct power flow is ensured by the fastening elements 50, 52 to the fastening elements 76, 78 in that the fastening elements 50, 52 are arranged at a height with respect to the mounting direction 28 and the fastening elements 76, 78 are as close as possible to this plane.
  • the fastening elements 76, 78 may form a common, with respect to the mounting direction 32 inclined guide surface 79, the imaginary continuation of which cuts in the region of the conductor receptacle 68.
  • the sliding nut 64 is pressed during application of the clamping force 56 in the fastener 76. Due to the inclination of the guide surface 79, the clamp 66 pulls together somewhat in the region of the fastening elements 76 and the engagement of the fastening elements 76, 78 increases under the effect of the clamping force.
  • the fastening elements 50 in the longitudinal direction 28 are only slightly longer than the clamping block 18.
  • the wall 44 or its leg and ground continues in the form of a protective wall 80 in the longitudinal direction.
  • the protective wall 80 preferably has no fastening means 50, but extends outside at least around the area of the bottom of the conductor receptacle 68 to electrically isolate this, if a received in the terminal block 18 conductors 2, 6 has been stripped too far and its stripped area outside of Clamping blocks 18 is located.
  • the in the FIGS. 2 and 3 described clamping device 10 is very stable to transverse forces 20. At the same time it allows, on the one hand by the displaceability of the terminal blocks and on the other hand by their with the lines 81 in FIG. 3 indicated flexibility to react on forces occurring in the conductors 2, 6 and to compensate for minor deviations in position of the stripped conductor ends. As shown by the lines 81, the stiffening wall 42 allows flexing in the plane spanned by the longitudinal and transverse directions in which the seats are adjacent.
  • FIG. 4 schematically shows the assembly of a clamping device, as shown in the FIGS. 2 and 3 is shown.
  • the clamping device 10 is preferably assembled on site from a kit which has at least two preassembled assemblies 82, 84.
  • the preassembled module comprises the carrier element 34 with clamping brackets 66 inserted in the longitudinal direction.
  • the insertion of the clamping bracket 66 into a receptacle 12 is represented schematically by the arrow 86.
  • protruding frictional engagement elements 88 here in the form of longitudinally extending ribs, with which the clamps 66 are secured in the receptacles 12.
  • the clamp 66 To insert the clamp 66, it is first inserted into the protective wall 80, which thus additionally serves as an alignment aid. As a result of the fastening means 50 which are not present in the region of the protective wall, the clamping bracket 66 can also be used in the mounting direction in the region of the protective wall 80. Subsequently, the fasteners 50, 52 are engaged with each other by the clamping bracket 66 is pushed into the receptacle.
  • the stiffening wall 42 forms a longitudinally facing stop surface 90, which limits the insertion of the clamping bracket 66 in the longitudinal direction and keeps it at a predetermined position.
  • the pre-assembled assembly 82 is placed in the mounting direction under the bent and superimposed stripped ends of the conductors 2, 6 and then lifted, so that the ends 2, 6 of the conductors through the inlet openings 38 into the respective conductor receivers 68 occur.
  • the second assembly 84 includes the sliding nut 64, the clamping member 14 and a tool 100.
  • the clamping member 40 is attached to the sliding nut 64, for example by screwing by a small amount. Subsequently, the tool 100 is releasably secured to the sliding nut 64.
  • the tool 100 has a handle 102, which facilitates the insertion of the sliding nut 64 in the conductor receptacle 68.
  • the insertion of the sliding nut 64 in the clamp 66 is indicated by the arrow 104.
  • the handle 102 extends in the assembly of the slide nut 64 in the longitudinal direction. In order to simplify handling, the handle 102 extends to the sliding nut 64 set in the receptacle 12 obliquely to the plane spanned by the longitudinal and transverse directions, so that it projects beyond the clamping device 10 in the mounting direction.
  • the tool 100 is preferably an injection molded part. Several tools 100 are structurally combined to form a tool set 106. The individual tools 100 can be broken out of the set 106.
  • the tool set 106 includes as many tools 100 as receptacles 12 or clamps 66 are present in the clamping device 10. Preferably, all tools 100 of a tool set 106 are already provided with slide nuts 64. On site, therefore, only one tool 100 must be canceled from the tool set 106 and the so connected sliding nut 66 are inserted into the receptacle 12 and the clamping bracket 66,
  • a holding head 110 At the one end 108 of the tool 100 is a holding head 110, on which the sliding block 64 is held.
  • the holding head 110 has an opening 112, into which the clamping member 14, in particular in its configuration as a screw, can be latched and / or accommodated by frictional engagement.
  • a projection 114 abuts an edge 116 of the sliding nut and secures the tool 100 against rotation.
  • a tear-off tab 120 At the one end 108 opposite the other end 118 is a tear-off tab 120, with which the tools 100 of the tool set 106 are molded onto a common headband 122.
  • a sliding nut 64 with clamping member 14 by means of the tool 100 is closer with respect to the FIG. 5 explained.
  • the sliding nut 64 is inserted together with clamping member 14 in the corresponding receptacle in the longitudinal direction 28 until it abuts against the stop 90.
  • the clamping member 14 is actuated, in which it is moved into the conductor receptacle 68. This is done for example by screwing the clamping member 14. With the screwing, the clamping member 14 moves increasingly from the holding head of the tool 100 and frees itself from the detachable connection. If the clamping operation is completed and the clamping member 14 is moved into its end position in the conductor holder 68, the tool can be removed without much effort.
  • the width of the holding head 110 in the transverse direction 30 is smaller than the clear width of the insertion opening 38.
  • a longitudinally extending, preferably two-sided notch 124 it is guided in the mounting direction to the height required for the assembly.
  • the fastening means 76, 78 and also the fastening means 50, 52 enter.
  • the notch 124 forms a longitudinal guide together with these fastening elements.
  • the width of the holding head beyond the notch 124 is greater than the clear width of the insertion opening 38 in the transverse direction.
  • the tools 100 can also be used for mounting the clamping blocks 18.
  • FIG. 5 is also a modification of the carrier element 34 of FIGS. 2 to 4 indicated:
  • the support member 34 has no fastening means 48 for attachment to a sleeve 1.
  • the protective wall 80 may be present only in the region of the base 36 of the receptacle 12 and over the inserted clamping bracket 66 in the longitudinal direction 28 projecting. Towards the insertion opening 38, the depth of the protective wall in the longitudinal direction 28 can decrease.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Installation Of Indoor Wiring (AREA)

Claims (18)

  1. Dispositif de serrage (10) pour le raccordement de conducteurs électriques (2, 6), qui s'étendent dans une direction longitudinale (28), comprenant un élément porteur (34) en un matériau électriquement isolant, qui présente au moins deux logements d'accueil (12) ouverts dans la direction longitudinale (28), disposés l'un à côté de l'autre dans une direction transversale (30) s'étendant transversalement à la direction longitudinale, et dans chacun desquels peut être inséré respectivement au moins un bloc de serrage (18) avec un organe de serrage (14) pouvant être déplacé contre au moins un conducteur (2, 6), dispositif
    dans lequel les logements d'accueil (12) et les blocs de serrage (18) sont dotés d'éléments de fixation (50, 52) pouvant être amenés en prise réciproque, et
    dans lequel les éléments de fixation (50, 52) sont conçus pour absorber une force transversale (20) agissant dans la direction transversale (30) par-delà les logements d'accueil (12), et la transférer au dit au moins un bloc de serrage (18) agencé dans les logements d'accueil (12),
    caractérisé en ce que des logements d'accueil (12) voisins sont agencés l'un derrière l'autre dans la direction longitudinale (28), et en ce qu'entre deux logements d'accueil (12) situés à une même hauteur dans la direction longitudinale (28), est agencé un passage (46) ouvert dans une direction de montage (32) orientée aussi bien transversalement à la direction transversale (30), que transversalement à la direction longitudinale (28) .
  2. Dispositif de serrage (10) selon la revendication 1, dans lequel les logements d'accueil (12) s'ouvrent dans la direction de montage (32).
  3. Dispositif de serrage (10) selon la revendication 1 ou la revendication 2, dans lequel les logements d'accueil (12) présentent, transversalement à la direction longitudinale (28), une section transversale sensiblement en forme de U.
  4. Dispositif de serrage (10) selon l'une des revendications 1 à 3, dans lequel les éléments de fixation (50, 52) sont agencés de part et d'autre d'une ouverture d'insertion (38) d'un logement d'accueil (12), qui s'étend en direction transversale et longitudinale (28, 30).
  5. Dispositif de serrage (10) selon l'une des revendications 1 à 4, dans lequel les éléments de fixation (50, 52) s'engagent dans le logement d'accueil (12), dans la direction transversale (30).
  6. Dispositif de serrage (10) selon l'une des revendications 1 à 5, dans lequel les éléments de fixation (50) côté logement d'accueil entourent les éléments de fixation (52) côté bloc de serrage, dans la direction transversale (30).
  7. Dispositif de serrage (10) selon l'une des revendications 1 à 6, dans lequel les éléments de fixation (50, 52) présentent une surface de guidage et d'application (62), qui s'étend dans la direction longitudinale (28) et fait face à la direction de montage (32).
  8. Dispositif de serrage (10) selon l'une des revendications 1 à 7, dans lequel un bord (40) d'un logement d'accueil (12), qui fait face à la direction de montage (32), se prolonge dans la direction longitudinale (28), en tant que bord (40) d'un logement d'accueil (12) voisin.
  9. Dispositif de serrage (10) selon l'une des revendications 1 à 8, dans lequel les logements d'accueil (12) sont reliés mutuellement par une paroi de rigidification (42) s'étendant dans la direction transversale (30).
  10. Dispositif de serrage (10) selon la revendication 9, dans lequel les logements d'accueil (12) traversent, avec au moins une partie de leur surface de section transversale, la paroi de rigidification (42).
  11. Dispositif de serrage (10) selon la revendication 9 ou la revendication 10, dans lequel la paroi de rigidification (42) forme des butées (90) pour les blocs de serrage (18).
  12. Dispositif de serrage (10) selon l'une des revendications 1 à 11, dans lequel il est prévu une paroi de protection (80), qui précède le logement d'accueil (12) dans la direction longitudinale (28) et l'entoure au moins en partie.
  13. Dispositif de serrage (10) selon l'une des revendications 1 à 12, dans lequel le bloc de serrage (18) comporte un étrier de serrage (66) en forme de U, dans l'ouverture duquel peut venir se loger, en y étant glissé dans la direction longitudinale (28), un écrou coulissant (64) muni de l'organe de serrage (14).
  14. Dispositif de serrage (10) selon la revendication 13, dans lequel l'écrou coulissant (64) et l'étrier de serrage (66) présentent des éléments de fixation (76, 78) pouvant être amenés en prise réciproque, et par l'intermédiaire desquels la force transversale (20) dans la direction transversale (30) peut être transmise d'une branche (67) à l'autre branche (67) de l'étrier de serrage (66).
  15. Outil (100) pour le montage d'un bloc de serrage (18) et/ou d'un écrou coulissant (64) dans un logement d'accueil (12) dans un dispositif de serrage selon l'une des revendications 1 à 14, comprenant une poignée (102) à une extrémité (108) de laquelle est agencée une tête de maintien (110) pouvant être insérée, en direction longitudinale (28), dans le logement d'accueil (12), caractérisé en ce que la tête de maintien (110) peut être fixée, de manière bloquée en rotation, à l'écrou coulissant (64) et à l'organe de serrage (14).
  16. Outil (100) selon la revendication 15, dans lequel la tête de maintien (110) peut être fixée de manière amovible à l'organe de serrage (14).
  17. Kit de pièces comprenant un dispositif de serrage (10) selon l'une des revendications 1 à 14 et au moins un outil (100) selon l'une des revendications 15 et 16.
  18. Kit de pièces selon la revendication 17, dans lequel le bloc de serrage (18) comporte un étrier de serrage (66) en forme de U, dans l'ouverture duquel peut venir se loger, en y étant glissé dans la direction longitudinale (28), un écrou coulissant (64) muni de l'organe de serrage 14), et dans lequel les étriers de serrage (66) sont prémontés sur le dispositif de serrage (10), et les écrous coulissants (64) avec les organes de serrage (14) sont prémontés sur l'outil (100).
EP12161045.5A 2011-03-25 2012-03-23 Dispositif de serrage pour le raccordement de conducteurs électriques et outil à cet effet Active EP2503643B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011001577A DE102011001577A1 (de) 2011-03-25 2011-03-25 Klemmvorrichtung zum Anschluss von sich in einer Längsrichtung erstreckenden elektrischen Leitern, insbesondere für Gelmuffen, sowie ein Werkzeug hierfür

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EP2503643A1 EP2503643A1 (fr) 2012-09-26
EP2503643B1 true EP2503643B1 (fr) 2018-05-30

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DE (1) DE102011001577A1 (fr)

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
CN110212318B (zh) * 2019-05-22 2024-04-05 菲尼克斯亚太电气（南京）有限公司 一种大线径导线直接端子

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US4053202A (en) * 1976-04-27 1977-10-11 Norden Alexander Lay-in connectors
US20040229518A1 (en) * 2003-05-13 2004-11-18 Landis John Michael Terminal block assembly

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DE1754473U (de) * 1957-04-27 1957-10-24 Wilhelm Sihn Jun K G Klemme zur verbindung elektrischer leitungen.
DE1245464B (de) 1965-01-19 1967-07-27 Bergner Fa R Abzweigklemme
US3342090A (en) * 1966-09-07 1967-09-19 Clark Feather Mfg Co Nut gripping tools
DE1277977B (de) 1967-11-30 1968-09-19 Wirschitz & Co F Kabelabzweigklemme
FR2171662A5 (fr) * 1972-02-02 1973-09-21 Bonneau Albert
FR2312129A1 (fr) * 1975-05-22 1976-12-17 Wechsler Bernard Connecteur electrique et barre de distribution en comportant application
US4273408A (en) * 1979-02-21 1981-06-16 General Electric Company Terminal block assembly
GB2168917A (en) * 1984-12-27 1986-07-02 Charles Glyn Roberts A device for holding a screw bolt nail or the like
FR2693598B1 (fr) * 1992-07-08 1994-10-07 Lefebvre Jean Jacques Borne de connexion électrique.
US5368506A (en) * 1993-11-12 1994-11-29 Standex International Corporation Electric street light terminal block assembly
FR2875956B1 (fr) * 2004-09-27 2006-12-01 Mecelec Sa Connecteur, grille de fausse coupure comprenant un tel connecteur et coffret de raccordement equipe d'une telle grille
US20070157446A1 (en) * 2006-01-06 2007-07-12 Werner Kothke Spring nut insertion tool
DE102009030662A1 (de) * 2009-06-25 2010-12-30 Hager Electro Gmbh & Co. Kg Schraubklemmanschlussvorrichtung, insbesondere für den Anschluss eines Stromkabels an eine Stromzählerinstallation

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US4053202A (en) * 1976-04-27 1977-10-11 Norden Alexander Lay-in connectors
US20040229518A1 (en) * 2003-05-13 2004-11-18 Landis John Michael Terminal block assembly

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EP2503643A1 (fr) 2012-09-26
DE102011001577A1 (de) 2012-09-27

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