EP0472040A1 - Borne sans vis et procédé pour sa fabrication - Google Patents

Borne sans vis et procédé pour sa fabrication Download PDF

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Publication number
EP0472040A1
EP0472040A1 EP91113116A EP91113116A EP0472040A1 EP 0472040 A1 EP0472040 A1 EP 0472040A1 EP 91113116 A EP91113116 A EP 91113116A EP 91113116 A EP91113116 A EP 91113116A EP 0472040 A1 EP0472040 A1 EP 0472040A1
Authority
EP
European Patent Office
Prior art keywords
terminal
contact rail
recess
contact
spring
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.)
Granted
Application number
EP91113116A
Other languages
German (de)
English (en)
Other versions
EP0472040B1 (fr
Inventor
Georg Greiner
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.)
Popp & Co GmbH
Original Assignee
Popp & Co 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
Application filed by Popp & Co GmbH filed Critical Popp & Co GmbH
Publication of EP0472040A1 publication Critical patent/EP0472040A1/fr
Application granted granted Critical
Publication of EP0472040B1 publication Critical patent/EP0472040B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/655—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding   with earth brace
    • 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
    • H01R4/4852—Means for improving the contact with the conductor, e.g. uneven wire-receiving surface

Definitions

  • the invention relates to a screwless connecting terminal for a contact rail such as, for example, an edge earthing bracket for a wall socket or the like.
  • a metallic terminal support with two insertion channels lying next to one another at a distance to form insertion areas for receiving a stripped end section of a connecting conductor, one between the insertion channels Arranged central part with a spring receptacle for receiving a one-piece clamping spring that can be used from the outside and has two pairs of tongues, each with two tongues lying one behind the other, wherein one pair of tongues can be inserted into an insertion area.
  • the terminal support is formed in one piece with the contact rail, production being carried out by reshaping and stamping a metal strip consisting of a suitable electrically conductive material, such as brass.
  • the insertion areas are completely formed by the insertion channels formed on the terminal support.
  • Such a connecting terminal the insertion areas of which are formed exclusively on the terminal support and extend transversely to the longitudinal direction of the contact rail, can be used in a simple and reliable manner. Due to the one-piece design of the terminal carrier with the contact rail, the production is relatively complex, the wall thickness for the terminal carrier must necessarily match that of the contact rail. It cannot therefore be taken into account that the contact rail must have a larger wall thickness for sufficient mechanical strength, as is the case for the terminal support which is less stressed in this regard.
  • a housing is formed separately from a base part. Insertion areas for electrically conductive connections of connection conductors include openings in the housing and are otherwise formed without the inclusion of the base part only between the housing and tongues of the clamping spring.
  • Insertion areas for electrically conductive connections of connection conductors include openings in the housing and are otherwise formed without the inclusion of the base part only between the housing and tongues of the clamping spring.
  • the pretensioning force which can be exerted on the connecting conductor via the clamping spring and which influences the effectiveness of an electrically conductive connection thus depends on the accuracy with which the housing is fixed to the base. Furthermore, a galvanic surface treatment of a structural unit that is merely formed with the housing and does not include the clamping spring is possibly not possible to increase the electrical conductivity or corrosion resistance.
  • the invention has for its object to develop a generic screwless terminal so that with a high level of functional reliability, the manufacture is simplified and a material saving is made possible.
  • the invention has for another object to provide a simple manufacturing method for producing a screwless terminal according to the invention.
  • a screwless connecting terminal in a generic connecting terminal in that a recess is formed in the connecting rail in which the central part of the terminal carrier, which is formed separately from the contact rail, can be inserted such that each insertion area is formed in some areas by a connecting section of the contact rail and that the clamping spring can be inserted into the spring receptacle in such a way that the terminal support and the end section of each connecting conductor are fixed under a bias against the contact rail or the associated connecting section.
  • the terminal support is formed separately from the contact rail results in a simplified production, the complexity of the shaping to be carried out and the mold tools to be used for this decreasing because, independently of one another, only the shape of the contact rail or the terminal carrier has to be taken into account.
  • the separate design of the contact rail and the terminal support also results in greater freedom of design in terms of the spatial assignment of these two parts. It is thus possible, for example, to deviate from the assignment according to the generic prior art, according to which the insertion regions run essentially transversely to a longitudinal axis of the contact rail.
  • the contact rail and the terminal support can be made, for example, from different sheet metal strip material.
  • the contact rail can, for example, advantageously be punched and shaped from a brass sheet with a wall thickness of approximately 0.9 mm, while the wall thickness of a brass sheet is due to the lower mechanical stress can be reduced to about 0.5 mm to produce the terminal support. According to the invention, a cost-saving material saving is thus possible with mass-produced terminals in large quantities.
  • connection of the terminal support to the contact rail is carried out according to the invention in a simple and easily automated manner in that the central part of the terminal carrier is guided through the recess in the contact rail.
  • each insertion area is not only formed by a tab formed on the terminal support but also in some areas by a connecting section of the contact rail, and the clamping spring can be inserted into the spring receptacle in such a way that the terminal support and the end section of each connecting conductor are pretensioned with respect to the contact rail or are assigned to the assigned connection section.
  • the clamping spring thus has a dual function according to the invention, according to which, on the one hand, a pretension is applied between the terminal support and the contact rail for securely fixing the terminal support and, on the other hand, a pretension acting against each connecting conductor for an effective electrically conductive connection.
  • connection between the contact rail and the terminal support is further strengthened by increasing the pretension exerted by the clamping spring.
  • the recess is laterally delimited by two webs lying opposite one another in the direction of a longitudinal axis of the contact rail, each tab having a holding surface which can be placed on a side of the associated web facing away from the clamping spring and in each case one side of a web facing the clamping spring having a connecting section forms.
  • the mentioned double function of the clamping spring is obtained in a simple manner in that the holding surface rests on the side of the web facing away from the clamping spring as part of the tab or clamp carrier.
  • the opposite side, facing the clamping spring, of each web forms a connection section, to which an stripped end of a connection conductor can be pressed.
  • each tab has a U-shaped cross section for receiving a web, the holding surface being formed by a holding surface of the U-shaped cross section.
  • the terminal support is thus particularly simple to produce and has sufficient strength or dimensional stability and can be connected to the contact rail particularly easily and securely.
  • each web has a trough extending in the direction of the longitudinal axis.
  • the rigidity of each web and thus the overall contact rail in the region of the recess is increased in a simple, material-saving manner.
  • the resulting increase in dimensional stability is particularly advantageous particularly when the contact rail serves, for example, as an edge earthing clip of a protective contact socket. In this case, it is necessary to maintain a spring pressure for the edge earthing contacts, which is also a test point for a corresponding VDE test, for example.
  • the contact pressure can be applied and maintained only on one side by the edge earthing bracket located away from the recess and not also by the edge earthing bracket opposite it and adjacent to the recess.
  • the trough is further arranged in such a way that a depression is formed in the direction of the clamping spring, then the effectiveness of the electrical connection can be increased or the contact resistance can be reduced at the same time by contacting a stripped end of a connecting conductor.
  • the shape of the respective insertion region can thus be designed in a simple manner by appropriate design of troughs in such a way that the contact resistance to a connecting conductor is minimized.
  • a transverse side of the cutout which runs essentially transversely to the longitudinal axis, is designed as a shear edge for separating terminal supports during their insertion into a cutout.
  • the manufacture of the terminal support and its assembly with the contact rail can thus be further simplified.
  • the supply of the terminal carriers is simplified, which are still connected via the material band from which they are formed until the point in time after they have been inserted into the recess of the respectively assigned contact rail by the action be separated from their shear edge.
  • latching receptacles and latching extensions extending in the direction of the longitudinal axis are mutually formed on the contact rail and the terminal carrier, engage in one another in order to fix the terminal carrier on the contact rail.
  • each tab can be formed on a front and / or rear end face of the outer leg, a latching receptacle for receiving a latching projection arranged laterally next to a web.
  • the central part has a region with a U-shaped cross section with two center legs, and a transverse side of the recess has two incisions for receiving a section of a center leg.
  • the positional fixation and the mounting of the terminal support on the contact rail can be further improved in an advantageous and simple manner in that the other transverse side has two guide corners for contacting a section of a center leg, essentially opposite the incisions.
  • the object relating to the production method is achieved according to the invention by a method for producing a connecting terminal according to one or more of the features mentioned, according to which the terminal carrier is produced from a sheet of metal sheet by press molding and punching, a terminal carrier to be inserted into a recess in a contact rail during the insertion of the Sheet metal strip is separated.
  • terminal supports are only separated from the sheet metal strip during the connection to the contact rail, they can be supplied to the associated contact rails with little handling effort and in a manner that is easy to automate in order to assemble a connecting terminal.
  • the terminal supports can be separated or separated using suitable punching or shearing tools. It has proven to be particularly advantageous that the separation takes place under the action of a transverse side of the cutout designed as a shear edge. The separation takes place without further action when a terminal support, for example by means of an embossing stamp or the like, is pressed into the recess of the associated contact rail.
  • a galvanic surface treatment of a contact rail with inserted terminal carrier is possible before inserting the clamping spring into the clamping spring receptacle of the terminal carrier.
  • nickel-plating or tin-plating of such a unit can improve its stability, corrosion resistance and its electrical conductivity in contact areas.
  • Fig. 1 shows a perspective exploded view of an overview of the structure and manufacture of a terminal according to the invention using the example of a contact rail designed as an edge earthing rail for a wall socket or the like.
  • a terminal housing or terminal carrier 1 is produced.
  • the clamp carrier 1 is produced by stamping and bending from a sheet metal strip 16 shown in FIG. 5.
  • the clamp carriers 1 are advantageously not manufactured as individual parts, i.e. they are not isolated before they are assembled with the contact rail 2, 2 '.
  • the terminal supports 1 thus initially remain connected to one another by composite webs 24 which run in the insertion direction 28 of a connecting conductor or in the direction of the sheet-metal strip 16 (composite row).
  • the plug contact 2 is a grounding rail for a protective contact socket in Figure 1.
  • the plug contact or the contact rail 2 ' is provided with at least one plug contact 2 ".
  • the plug contacts 2, 2 ' can also advantageously be present as a series of connections. It is essential for the construction of a connecting terminal according to the invention that a cutout or a recess 4 is punched out in the plug contact 2, 2 ', the dimensions and design of which are matched to the terminal carrier 1.
  • a clamping spring 14 is produced.
  • the clamping spring 14 is punched out of a sheet of spring metal sheet and bent; it is essentially designed according to the generic state of the art according to DE-U1 -87 04 494.3 and in a process d) the terminal carrier 1 and the plug contact 2, 2 'are joined as shown in FIG. With its central, U-shaped central section or central part 11 with the U base 7, the terminal support 1 is first pressed into the recess 4 of the plug contact 2, 2 '.
  • n-shaped i.e.
  • the tabs 22 comprise as a holding surface 52 of the U-shaped cross-section, holding surface for an installation at an area surrounding the recess 4; they also have leg surfaces 53 extending from the holding surface 52.
  • the clamping spring 14 is inserted into a spring receptacle or spring insert recess 21 of the clamp carrier 1.
  • the clamping spring 14 acts on the plug contact 2, 2 'with its spring ends.
  • the spring ends are inclined in the insertion direction 28.
  • An stripped end of a connecting conductor can be inserted into the tab 22 or the insertion channel formed by the tab 22 in the insertion direction 28.
  • the clamping spring 14 contacts the connecting conductor with its spring force acting against the plug contact 2, 2 '.
  • the terminal support 1 is made as a stamped and bent part from brass flat strip material. It has - seen in the direction of insertion 28 of the connecting conductors - a U-shape, on the U-leg ends of which are on both sides outward and downward - viewed in the direction of the U-bottom - open N-shaped tabs 22 are formed.
  • the n-shaped cross-section corresponds to leg surfaces 53 and the n-arches are holding surfaces or retaining tabs 52.
  • the height of the leg surfaces 53 is approximately one third of the height of the U-legs.
  • the clamp support 1 is constructed as follows: In the front body edge, seen in the insertion direction 28, a web 15 protrudes with the U-base 7 of the central part 11 against the insertion direction 28. At the rear edge of the clamp carrier 1, as seen in the insertion direction 28, a web rest can protrude in the pushing direction 28 on the base 7 of the central part 11. The web 15 and the web rest arise when the composite webs 24 of the terminal supports 1 are separated or when they are separated from a row of bonds (FIG. 5). Seen in the insertion direction 28, a spring insert recess 21 or spring receptacle for the clamping spring 14 is punched out into the front U-legs or middle legs 37.
  • the spring insert recess 21 is composed of six surfaces in each U-leg end surface. Seen from the direction of insertion 28, the first surface is the base surface 7 of the U-shaped central part 11. It extends approximately in a third of the length of the U base surface. This surface is adjoined by bevels 41 rising by approximately 45 ° in the direction of insertion. The bevels 41 extend about a further third of the total length of the U base. Approximately in the middle of each contact slope 41, a retaining lug 27 protrudes from the contact slope 41 against the insertion direction 28. Retaining holes 38 of the clamping spring 14 are inserted into the retaining lugs 27.
  • the bevels 41 are followed by third surfaces which run approximately at right angles to the base surface 7. These partial areas 49 reach up to about three quarters in the height of the U-legs. The partial surfaces 49 merge into supporting surfaces 44 with a radius. The support surfaces 44 run parallel to the base surface 7 and expand against the insertion direction 28 to approximately a third of the length of the U base surface.
  • An insertion channel is formed in each case by the outer leg surfaces 53, the apex region or the holding surfaces 52 and a region of the central part 11 and thus by the tabs 22.
  • the terminal support 1 thus has two insertion channels spaced apart by the central part 11 and extending in the insertion direction 28, which together with the plug contact 2, 2 'contribute to the formation of insertion regions for stripped ends of connecting conductors.
  • the system slopes 41 and the partial surfaces 49 support the clamping spring 14 against the spring force acting on the connecting conductor or on the plug contact 2, 2 '.
  • Locking ends 35 of the clamping spring 14 can be held at a suitable distance from the underside of the plug contact 2 by abutment bevels. This small distance facilitates the insertion of the connection conductor into the connection terminal.
  • Retaining cutouts or snap-in receptacles 25 are punched out on the end faces into the second guide tabs or the outer n-leg surfaces 53.
  • the width of the holding cutouts 25 is approximately equal to the height. They are located below the n-curvature of the tabs 22.
  • the holding cutouts 25 serve to lock the terminal support 1 with the plug contact 2, 2 '.
  • the rear end faces of the center legs, seen in the direction of insertion 28, are designed as guide bevels 26.
  • the guide bevels 26 can be designed to be inclined with respect to the base surface 7 at an angle of approximately 95 in the insertion direction 28.
  • a start of the guide bevel 26 is in the U-base on the base surface 7.
  • the solder of the rear n-outer legs can meet with the starting point of the guide bevels 26 in the base surface 7.
  • the ends of the guide bevels 26 at the level of the upper edge of the holding cutouts 25 of the tabs 22 can protrude from the rear ends of the outer n-legs, as seen in the direction of insertion 28, by approximately 0.6 mm, as seen in the direction of insertion 28.
  • These guide slopes 26 guide the terminal support 1 during the joining process, i.e. the insertion of the terminal support 1 into a plug contact 2, 2 'in guide recesses or incisions 8 of the plug contact 2 or 2'.
  • This constructive measure on the terminal support 1 and the formation of guide recesses 8 ensures problem-free pressing and fixing of the terminal support 1 in the plug contact 2.
  • the final assembly position is achieved with latching projections 20 engaged in the holding cutouts 25.
  • two guide corners or guide corners 23 can be formed on the transverse side of the recess 4 opposite the guide recesses 8, which one on the end faces of the center legs of the central part 11 Can exert pressure to press the guide bevels 26 into the guide recesses 8.
  • FIG. 5 shows terminal supports 1, as have been described in connection with FIGS. 1, 2, 3 and 4, in their series of bonds. Viewed in the direction of insertion 28, each spring insert recess 21 of each terminal support 1 is arranged at the front. The terminal supports 1 are connected to one another by composite webs 24. The last terminal support 1, seen in the direction of insertion 28, may have a web rest 18 protruding in the base direction 7 in the direction of insertion 28, which has remained from the composite web 24 of the terminal carrier 1 last separated.
  • the plug contact 2, 2 ' is designed symmetrically.
  • the contact part 2, 2 ' has in its surface - viewed from a pressing-in direction 6 for a terminal support 1, the front surface - the rectangular recess 4.
  • the longitudinal sides of the recess 4, which run in the direction of the longitudinal axis 12, are straight.
  • the broad sides or transverse sides of the recess 4 are structured.
  • the front broad side as seen in the insertion direction 28 has a recess 17 which enlarges the rectangle against the insertion direction 28.
  • the width of the recess 17 is shorter than the distance between the longitudinal sides.
  • the recess 17 forms the guide corners or guide corners 23 with the longitudinal sides.
  • the rear broad side, seen in the insertion direction 28, has a guide projection 19 which is opposite the insertion direction 28.
  • the guide recesses 8 have a width, which corresponds to the wall thickness 10 of the terminal support 1.
  • the guide projection 19 or the guide recesses 8 guide the terminal support 1 when inserting the U-bottom of the terminal support 1 into the plug contact 2, 2 '.
  • the guide recesses 8 guide the guide bevels 26 of the clamp carrier 1 when the clamp carrier 1 is pressed in further until the parts lock. In the locked state, the guide recesses 8 hold the U-legs of the clamp carrier 1 at the predetermined distance between the guide recesses 8.
  • the longitudinal sides of the recess 4 form with the outer body edges of the plug contact 2, 2 'contact rail webs or webs 36.
  • the contact rail webs 36 have a width which corresponds to the inner spacing of the n-legs of the tabs 22.
  • the contact rail webs 36 can be provided with a trough and have a curved cross-sectional shape.
  • the outer edges of the contact rail webs 36 can thereby about half the material thickness of the plug contact 2, 2 'in the pressing-in direction 6 can be bent downwards.
  • the contact rail webs 36 thereby receive bulges 29 which correspond in shape to the n-arc shape of the tabs 22 of the terminal support 1.
  • the surfaces of the contact rail webs 36 facing the clamping spring 14 are provided with troughs 30 by the shaping, against which the connecting conductors can be pressed.
  • the highest elevation of the bulges 29 can form a plane with the material surface of the plug contact 2, 2 '.
  • the locking projections 20 protrude at the level of the corners of the recess.
  • the locking projections 20 can widen the outer edges of the contact rail webs 36 in two stages.
  • the first stage can include a clamping surface at right angles to the longitudinal axis 12 and, in a second stage, a guide surface which further widens the plug contact 2, 2 '.
  • the width of the clamping surface and the guiding surface together corresponds approximately to the wall thickness 10 of the clamping carrier 1.
  • the front guiding surface, seen in the insertion direction 28, is level with the surfaces of the guiding corners 23.
  • the rear guiding surfaces, viewed in the insertion direction 28, protrude somewhat the surface of the guide projection 19.
  • the distance between the front guide surfaces of the latching projections 20 to the rear guide surfaces of the latching projections 20 corresponds to the width of the n-leg surfaces of the tabs 22 of the terminal carrier 1.
  • the latching projections 20 and the guide corners 23 are like the outer sides of the contact rail webs 36, Sunk down in the press-in direction 6 and form a plane.
  • the shape described has the result that the guide surfaces guide the outer n-legs of the tabs 22 of the terminal support 1.
  • the clamping surfaces or the latching projections 20 snap into the holding cutouts 25 of the clamp carrier 1 inserted into the plug contact 2, 2 'until it stops.
  • the shape of the contact rail webs 36 is adapted to the shape of the n-arm of the tabs 22. In terms of their width, they fill the inner spacing of the n-legs of the tabs 22.
  • the guide corners 23 lead - as seen in the insertion direction 28 - the front inner n-legs of the tab 22 or exert a contact pressure thereon.
  • the rear guidance or fixing - seen in the insertion direction 28 - is realized by the guide recesses 8, in which the guide bevels 26 engage.
  • the guide bevels 26 of the terminal support 1 are thus guided and held in the guide recesses 8.
  • the guide recesses 8 keep the U-legs at the predetermined distance.
  • the function of the guide projection 19 and the recess 17 is of particular importance, since a single terminal carrier 1 is inserted out of a composite row of terminal carriers 1 into the recess 4 of the plug contact 2.
  • the recess 17 thus forms a shear edge 3 on the transverse side of the recess 4 with its side perpendicular to the longitudinal axis 12.
  • the shear edge 3 acts as a counter-holder when the clamp carrier 1 is cut off from the row of bonds.
  • a shear punch 9 shears through the composite web 24, acting against the shear edge 3 of the plug contact 2, 2 '.
  • the guide projection 19 opposite the shear edge 3 in the insertion direction 28 acts as a guide in the insertion direction 28 with the web rest 18 which has remained in the previous joining process.
  • the rounded outer surfaces of the U-base act as lateral guides at right angles to this.
  • the separation of the terminal supports 1 in the joining process is particularly advantageous.
  • the terminal carriers 1 are separated without cutting, only when a terminal carrier 1 is inserted into a plug contact 2, 2 '.
  • the composite row of terminal supports 1 is easy to handle.
  • the - in the insertion direction 28 - the foremost terminal support 1 can be fed in connection with its composite row of terminal housings 1 comparatively easily for assembly with a plug contact 2, 2 'and positioned over the recess 4.
  • FIGS. 2 and 4 show the terminal carrier 1 inserted into the plug contact 2, 2 '.
  • the clamping surfaces of the latching projections 20 are latched into the holding cutouts 25 of the n-shaped tabs 22.
  • the inner surfaces of the n-arc shape of the tabs 22 are in contact with the arc shapes of the contact rail webs 36.
  • the clamping spring 14 is inserted into the spring insert recess 21.
  • each tab 22 of a terminal support 1 connected to a plug contact 2, 2 ' comprises a contact rail web 36, so that in each case an insertion area for a stripped end of a connecting cable through an insertion channel formed by a tab 22 and through the side of a contact rail facing the spring insert recess 21 is formed.
  • each tab 22 is pressed onto the side of the associated contact rail web 36 facing away from the clamping spring 14. This contributes to a good connection between a contact housing 1 and a contact rail 2, 2 '.
  • the biasing force of the clamping spring 14 continues to act on ends of connecting leads inserted in insertion regions.
  • the contact of one end on one side of the contact rail web 36 as a connection section of the contact rail 2, 2 'further leads to a good electrically conductive contact or a reduction in a connection resistance.
  • the formation of a bead or trough 30 on each contact rail web 36 also contributes to good electrical contact.
  • FIG. 5 shows the technological process during the manufacture of the connection terminal in part.
  • the manufacture of the terminal carrier 1 and the joining of the terminal carrier 1 into the recess 4 of the plug contact 2, 2 ' is shown.
  • the terminal supports 1 are - seen in the insertion direction 28 - punched and bent in several successive steps.
  • the foremost terminal support 1 - seen in the insertion direction 28 - is positioned over the recess 4 of the plug contact 2.
  • the bulges of the troughs of the plug contact 2, 2 'or the contact strip web 36 are in the direction of the terminal carrier 1.
  • the shear edge 3 of the recess 4 is - seen in the direction of insertion 28 - at the front.
  • a shear punch 9 is mounted above the terminal support 1 in the pressing-in direction 6.
  • the stamp 9 is moved in the press-in direction 6.
  • the shear punch 9 slides into the center of the U-shaped central part 11 of the clamp support 1 and then presses on the base area 7.
  • shear forces arise between the shear edge 3 and the shear punch 9 in the connecting web 24 of the clamp support , which separate the foremost terminal block 1 to be connected from the row of connections.
  • the clamp carrier 1 is guided by the shear stamp 9 in the manner described above on the surfaces of the clamp carrier 1 and the plug contact 2, 2 'upon further penetration in the press-in direction 6.
  • the clamping spring 14 is designed essentially as is the case with the generic state of the art according to DE-U1-87 04 494.3, so that reference can be made to the relevant description there.
  • the clamping spring 14 consists of mutually symmetrical partial clamping springs which are connected to one another by a connecting piece 34.
  • the connecting piece 34 is located approximately in the middle of the elongated clamping spring 14.
  • Holding holes 38 are punched out in the area next to the connecting piece 34.
  • the holding holes 38 serve to receive the holding lugs 27 on the terminal support 1.
  • the spring ends are inclined at an angle of approximately 45 ° in the direction of insertion 28 with respect to a central part lying in the plane of the connecting piece 34.
  • the front spring ends in the insertion direction 28 are locking tongues 32.
  • the locking tongue 32 has the locking end 35 at its end.
  • the locking end 35 hooks into the connecting conductor inserted into the connecting terminal, presses it against the contact web 36 and prevents the connecting conductor from being pulled out against the insertion direction 28 Approximately half the width of the material of the clamping spring half, in each case half from the center, can be bent in the direction of the holding holes 38 and form holding tabs.
  • the holding tabs have the task of holding the locking ends 35 of the locking tongue 32 at a short distance from the plug contact 2, 2 '.
  • the outer sides of the locking tongues 32 and the contact tongues 33 are recessed by approximately the material width of the clamp carrier 1 in the direction of the center of the clamp spring.
  • the contact edge 45 formed in the outer shape of the clamping spring 14 supports the clamping spring 14 with respect to the outer n-legs of the tabs 22.
  • FIGS 2 and 4 show a fully assembled terminal.
  • the plug contact 2, 2 ' is a grounding rail for a protective contact socket or has a contact pin 2 ".
  • the terminal carrier 1 is inserted into the plug contact 2, 2' and the clamping spring 14 is inserted in the terminal carrier 1.
  • the locking ends 35 of the locking tongues 32 can are held by the retaining tabs at a short distance from the facing sides of the contact rail webs 36.
  • An insertion opening thus formed enables the connecting conductor to be inserted easily into the connecting terminal.
  • the inserted connecting conductor lies over a large area of its circumference under a pretensioning force of the clamping spring 14 on the contact rail web 36.
  • the contact pressure of the two diametrically opposite contact brackets of the earthing bar 2 would only be sufficient on one side, namely only on the side not provided with the recess 4, but not on the side of the recess 4.
  • Plug contact 2, 2 'and terminal support 1 are made of brass tape of different thickness and width.
  • the plug contact 2, 2 "(grounding rail) has a wall thickness of 0.9 mm, the terminal support 1 has a wall thickness of 0.5 mm.
  • a terminal carrier 1 which is separate from a plug contact 2, 2 'can thus be produced in accordance with the requirements for the mechanical and electrical properties of the terminal carrier 1.
  • the terminal supports are easy to supply as a composite row for assembly, each with a plug contact 2, 2 'and are, via a shear edge 3 formed in the recess 4, during the pressing of the terminal bracket 1 into an associated contact part 2, 2' by the other terminal supports of the composite row separated.
  • the contact of the holding surfaces 52 of the terminal carrier 1 on the sides of the webs 36 opposite the spring receptacle 21 leads to a good connection of the terminal carrier 1 and the plug contact 2, 2 'under the biasing force of an inserted clamping spring 14.
  • an insertion area for receiving a connecting conductor is formed by the tab 22 formed on the terminal support 1 or the insertion channel formed thereby and by the respectively assigned contact part web 36. Due to this design of the insertion area, the biasing force of the clamping spring 14 leads to a good contact or a low contact resistance of a connecting conductor.

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Refuse Collection And Transfer (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
EP91113116A 1990-08-23 1991-08-05 Borne sans vis et procédé pour sa fabrication Expired - Lifetime EP0472040B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9012133U 1990-08-23
DE9012133 1990-08-23

Publications (2)

Publication Number Publication Date
EP0472040A1 true EP0472040A1 (fr) 1992-02-26
EP0472040B1 EP0472040B1 (fr) 1994-06-22

Family

ID=6856773

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91113116A Expired - Lifetime EP0472040B1 (fr) 1990-08-23 1991-08-05 Borne sans vis et procédé pour sa fabrication

Country Status (5)

Country Link
EP (1) EP0472040B1 (fr)
AT (1) ATE107800T1 (fr)
DE (1) DE59101992D1 (fr)
FI (1) FI95633C (fr)
NO (1) NO301953B1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1881561A1 (fr) * 2006-07-19 2008-01-23 Legrand France Borne automatique intégrant une cloison de guidage et appareillage électrique comprenant une telle borne
FR2911222A1 (fr) * 2007-01-09 2008-07-11 Legrand France Borne de connexion a double appui.
EP2065980A3 (fr) * 2007-10-29 2012-03-07 Weidmüller Interface GmbH & Co. KG Dispositif de raccordement doté d'un rail conducteur
CN103594829A (zh) * 2012-08-15 2014-02-19 町洋企业股份有限公司 接线端子及其制造方法
DE102012112813A1 (de) * 2012-12-20 2014-06-26 Phoenix Contact Gmbh & Co. Kg Mehrfachanschlusskammer mit Strombalken
DE102013104394A1 (de) * 2013-04-30 2014-10-30 Wago Verwaltungsgesellschaft Mbh Leiteranschlussklemme
DE202015105023U1 (de) * 2015-09-22 2016-12-23 Weidmüller Interface GmbH & Co. KG Anschlussvorrichtung für Leiter
EP3159972A1 (fr) * 2015-10-19 2017-04-26 Switchlab Inc. Dispositif de connexion de fil de commutateur
US10038255B2 (en) * 2016-09-13 2018-07-31 Switchlab Inc. Rail terminal assembling structure
EP4311029A1 (fr) * 2022-07-22 2024-01-24 Wago Verwaltungsgesellschaft mbH Borne à ressort, borne de connexion de conducteur et procédé de fabrication d'une borne à ressort

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1910179A1 (de) * 1968-03-01 1969-11-13 Lucas Industries Ltd Stecker-Anschlusseinrichtung
FR2392509A1 (fr) * 1977-05-28 1978-12-22 Weidmueller Kg C Borne sans vis pour conducteurs electriques
DE3130318A1 (de) * 1981-07-31 1983-02-17 Gebrüder Merten GmbH & Co KG, 5270 Gummersbach Elektrisches installationsgeraet, insbesondere steckdose oder schalter mit schraubenlosen anschlussklemmen
DE8704494U1 (de) * 1987-03-26 1987-06-11 Popp + Co Gmbh, 8582 Bad Berneck Schraubenlose Anschlußklemme

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1910179A1 (de) * 1968-03-01 1969-11-13 Lucas Industries Ltd Stecker-Anschlusseinrichtung
FR2392509A1 (fr) * 1977-05-28 1978-12-22 Weidmueller Kg C Borne sans vis pour conducteurs electriques
DE3130318A1 (de) * 1981-07-31 1983-02-17 Gebrüder Merten GmbH & Co KG, 5270 Gummersbach Elektrisches installationsgeraet, insbesondere steckdose oder schalter mit schraubenlosen anschlussklemmen
DE8704494U1 (de) * 1987-03-26 1987-06-11 Popp + Co Gmbh, 8582 Bad Berneck Schraubenlose Anschlußklemme

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1881561A1 (fr) * 2006-07-19 2008-01-23 Legrand France Borne automatique intégrant une cloison de guidage et appareillage électrique comprenant une telle borne
FR2904149A1 (fr) * 2006-07-19 2008-01-25 Legrand France Borne automatique integrant une cloison de guidage et appareillage electrique comprenant une telle borne
FR2911222A1 (fr) * 2007-01-09 2008-07-11 Legrand France Borne de connexion a double appui.
EP1944833A3 (fr) * 2007-01-09 2009-08-19 Legrand France Borne de connexion à double appui
EP2065980A3 (fr) * 2007-10-29 2012-03-07 Weidmüller Interface GmbH & Co. KG Dispositif de raccordement doté d'un rail conducteur
CN103594829A (zh) * 2012-08-15 2014-02-19 町洋企业股份有限公司 接线端子及其制造方法
DE102012112813A1 (de) * 2012-12-20 2014-06-26 Phoenix Contact Gmbh & Co. Kg Mehrfachanschlusskammer mit Strombalken
US9515440B2 (en) 2012-12-20 2016-12-06 Phoenix Contact Gmbh & Co. Kg Multiport terminal with current bars
DE102013104394A1 (de) * 2013-04-30 2014-10-30 Wago Verwaltungsgesellschaft Mbh Leiteranschlussklemme
DE102013104394B4 (de) * 2013-04-30 2021-06-10 Wago Verwaltungsgesellschaft Mbh Leiteranschlussklemme
DE202015105023U1 (de) * 2015-09-22 2016-12-23 Weidmüller Interface GmbH & Co. KG Anschlussvorrichtung für Leiter
US10439305B2 (en) 2015-09-22 2019-10-08 Weidmüller Interface GmbH & Co. KG Connection apparatus for conductors
EP3159972A1 (fr) * 2015-10-19 2017-04-26 Switchlab Inc. Dispositif de connexion de fil de commutateur
US10038255B2 (en) * 2016-09-13 2018-07-31 Switchlab Inc. Rail terminal assembling structure
EP4311029A1 (fr) * 2022-07-22 2024-01-24 Wago Verwaltungsgesellschaft mbH Borne à ressort, borne de connexion de conducteur et procédé de fabrication d'une borne à ressort

Also Published As

Publication number Publication date
FI95633B (fi) 1995-11-15
NO301953B1 (no) 1997-12-29
FI95633C (fi) 1996-02-26
ATE107800T1 (de) 1994-07-15
NO913181L (no) 1992-02-24
FI913976A0 (fi) 1991-08-22
DE59101992D1 (de) 1994-07-28
EP0472040B1 (fr) 1994-06-22
NO913181D0 (no) 1991-08-15
FI913976A7 (fi) 1992-02-24

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