EP0472040B1 - 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
EP0472040B1
EP0472040B1 EP91113116A EP91113116A EP0472040B1 EP 0472040 B1 EP0472040 B1 EP 0472040B1 EP 91113116 A EP91113116 A EP 91113116A EP 91113116 A EP91113116 A EP 91113116A EP 0472040 B1 EP0472040 B1 EP 0472040B1
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.)
Expired - Lifetime
Application number
EP91113116A
Other languages
German (de)
English (en)
Other versions
EP0472040A1 (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
    • H01R4/4846—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
    • H01R4/48185—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
    • 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 with a contact rail such as, for example, an edge earthing clip for a wall socket or the like, with a clamping spring and with a metallic terminal support with two insertion channels lying next to one another at a distance to form insertion regions for receiving a stripped end section of a connecting conductor , a central part arranged between the insertion channels with a spring receptacle for accommodating the one-piece clamping spring which can be used from the outside and has two pairs of tongues, each with two tongues lying one behind the other, one pair of tongues each being insertable into an insertion region.
  • 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 support with the contact rail, however, the manufacture is relatively complex, the wall thickness for the terminal support necessarily having to 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 without the involvement of Base part formed only between the housing and tongues of the clamping spring. In order to fix the housing to the base, it is necessary in a manner that increases the manufacturing effort that ends of side wall regions of the housing guided through base openings are bent. It is also necessary that the clamping spring is arranged in the spring receptacle formed between these two parts before the housing is fixed on the base part.
  • 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 formed only 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 material savings are made possible.
  • Another object of the invention is to provide a simple manufacturing method for producing a screwless connecting 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 region is formed in regions 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 pretension with respect to 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 regarding 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 clamp carrier 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 for producing the terminal support is approximately 0.5 due to the lower mechanical stress mm can be reduced. According to the invention, a cost-saving material saving is thus possible in the case of connecting terminals which are to be mass-produced 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 double 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 carrier is further strengthened by increasing the pretension exerted by the clamping spring.
  • the cutout is laterally delimited by two webs which are 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 which is remote from the clamping spring, and in each case one side of a web facing the clamping spring has a connecting section forms.
  • the mentioned double function of the clamping spring results 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.
  • the trough is further arranged in such a way that a depression is formed in the direction of the clamping spring, the effectiveness of the electrical connection can also be increased or the contact resistance can be reduced by placing a stripped end of a connecting conductor.
  • the shape of the respective insertion area 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 supports 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 projections 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 .
  • a latching receptacle can be formed on a front and / or rear end face of the outer leg 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 position 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 central 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 an easily automated manner for assembling a connecting terminal.
  • the clamp carriers 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 if a terminal support is pressed, for example by means of an embossing stamp or the like, 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 tinning of such a unit can improve its stability, corrosion resistance and 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 assembly 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).
  • plug contacts or contact rails 2, 2 ' are produced, for example, by stamping, bending and / or sawing.
  • the plug contact 2 is a grounding rail for a in Figure 1 Safety socket.
  • the plug contact or the contact rail 2 ' is provided with at least one plug contact 2 ⁇ .
  • the plug contacts 2, 2 ' can advantageously be present as a composite row. It is essential for the construction of a connecting terminal according to the invention that an outbreak or a recess 4 is punched out in the plug contact 2, 2 ', the dimensions and design of which is matched to the terminal carrier 1.
  • a clamping spring 14 is produced.
  • the clamping spring 14 is punched out of a spring sheet metal strip 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 together as shown in FIG. 5.
  • the terminal support 1 is first pressed with its central, U-shaped central portion or central part 11 with the U-base 7 into the recess 4 of the plug contact 2, 2 '.
  • the tabs 22 include as a holding surface 52 of the U-shaped cross-section holding surface for a system 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 with its spring ends on the plug contact 2, 2 '.
  • 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 clamp carrier 1 is made as a stamped and bent part from brass flat strip material. It points - in the insertion direction 28 of the connecting conductor seen - on a U-shape, on the U-leg ends on both sides outward downward - seen 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 terminal support 1 is constructed as follows: In the - foremost 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 extend 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 spaced apart by the central part 11, extending in the insertion direction 28 insertion channels, which together with the plug contact 2, 2 'contribute to the formation of insertion areas for stripped ends of leads.
  • the system bevels 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. This small distance facilitates the insertion of the connection conductor into the connection terminal.
  • Retaining cutouts or snap-in receptacles 25 are punched out of the second guide tabs or the outer n-leg surfaces 53 on the end faces.
  • the width of the holding cutouts 25 is approximately equal to the height. You are below the n-curvature of the tabs 22.
  • the holding cutouts 25 are used 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-bottom 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, ie 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 which are engaged in the holding cutouts 25.
  • 2 ' can be formed on the opposite side of the guide recesses 8 opposite side of the recess 4 two guide corners or guide corners 23, 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.
  • 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, can 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 - seen from a press-in direction 6 for a terminal support 1 from the front surface - dei rectangular recess 4.
  • the long sides of the recess 4, which extend 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 that 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, that of the wall thickness 10 of the Terminal support 1 corresponds.
  • the guide projection 19 and the guide recesses 8 guide the terminal support 1 when inserting the U-bottom of the terminal support 1 in the plug contact 2, 2 '.
  • the guide recesses 8 guide the bevels 26 of the terminal support 1 when the terminal support 1 is pressed in further until the parts lock. In the locked state, the guide recesses 8 hold the U-legs of the terminal support 1 at the predetermined distance between the guide recesses 8.
  • the long 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 be bent downward by about half the material thickness of the plug contact 2, 2 'in the pressing direction 6.
  • 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 may have 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 guide surface together corresponds approximately to the wall thickness 10 of the clamp carrier 1.
  • the front guide surface - seen in the insertion direction 28 - is on one level with the surfaces of the guide corners 23.
  • the rear guide surfaces - seen in the insertion direction 28 - protrude somewhat the surface of the guide projection 19.
  • the distance between the front guide surfaces of the locking projections 20 to the rear guide surfaces of the locking projections 20 corresponds to the width of the n-leg surfaces of the tabs 22 of the clamp carrier 1.
  • Die Locking projections 20 and the guide corners 23, like the outer sides of the contact rail webs 36, are sunk downwards in the pressing-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 locking projections 20 snap into the holding cutouts 25 of the inserted into the plug contact 2, 2 'terminal holder 1.
  • 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 guide the front inner n-legs of the tab 22, as seen in the insertion direction 28, 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 composite row.
  • a shear punch 9 shears the composite web 24, against the shear edge 3 of the plug contact 2, 2 'acting.
  • 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 remained during the previous joining process, and 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 disconnection of the terminal support 1 takes place without cutting, only when inserting a terminal support 1 in a plug contact 2, 2 '.
  • the composite row of terminal supports 1 is easy to handle.
  • the - seen in the direction of insertion 28 - the foremost terminal support 1 can be compared in connection with its composite series of terminal housings 1 easy to mount with a plug contact 2, 2 'and position over the recess 4.
  • Figures 2 and 4 show that in the plug contact 2, 2 'inserted terminal support 1.
  • the clamping surfaces of the locking projections 20 are engaged in 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 includes a plug contact 2, 2 'connected terminal support 1 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 which the spring insert trough 21 facing side of a contact rail 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 of a contact housing 1 with a contact rail 2.2 '.
  • the biasing force of the clamping spring 14 continues to act on the ends of connecting leads inserted in insertion regions.
  • Figure 5 shows the technological process in the manufacture of the connection terminal partially. It shows the manufacture of the terminal carrier 1 and the joining of the terminal carrier 1 in the recess 4 of the plug contact 2, 2 '.
  • 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 plug contacts 2, 2 ' are fed in the transport direction 43 of the plug contacts 2, 2' below the terminal carrier 1.
  • the bulges of the troughs of the plug contact 2, 2 ' or the contact strip web 36 are in the direction of the terminal support 1.
  • the shear edge 3 of the recess 4 is - seen in the insertion direction 28 - at the front.
  • a shear punch 9 is mounted above the terminal support 1 in the pressing-in direction 6. If a terminal support 1 is positioned over the recess 4 of the plug contact 2, 2 ', 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. When the shear punch 9 is pressed in further in the direction of insertion 6, 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 and to be connected terminal support 1 from the row of connections. The terminal support 1 is guided by the shear punch 9 in the manner described above on the surfaces of the terminal support 1 and the plug contact 2, 2 'upon further penetration in the press-in direction 6.
  • clamping spring 14 is shown.
  • the clamping spring 14 is essentially designed 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 part web 36 and prevents the connecting conductor from being pulled out against the insertion direction 28
  • 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 cut out by approximately the material width of the clamp carrier 1 in the direction of the center of the clamp spring.
  • the contact edge 45 which forms 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 an earthed socket or has a contact pin 2 ⁇ .
  • the terminal support 1 is inserted and the clamping spring 14 is inserted in the terminal support 1.
  • the locking ends 35 of the locking tongues 32 can be 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, over the entire surface of the contact rail web 36.
  • the contact pressure of the two diametrically opposite contact brackets of the earthing bar 2 would only be on one side, namely only sufficient 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 formed separately from a plug contact 2, 2 ', can accordingly be produced to meet the requirements for the mechanical and electrical properties of the terminal carrier 1.
  • the terminal carriers are a series of assemblies for assembly with a plug contact 2, 2 'easily fed and are, via a shear edge 3 formed in the recess 4, during the pressing of the terminal carrier 1 into an associated contact part 2, 2' of the other terminal carriers of the series of connections severed.
  • the system of holding surfaces 52 of the terminal support 1 on the opposite side of the spring retainer 21 of the webs 36 leads to a good connection of the terminal support 1 and 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 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)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Pens And Brushes (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Refuse Collection And Transfer (AREA)

Claims (12)

  1. Borne de raccord sans vis, comme par exemple une cosse de mise à la terre périphérique pour une prise murale ou similaire, comportant un rail de contact (2, 2′) avec un ressort de serrage (14) et un porte-borne (1) métallique présentant deux canaux d'enfichage situés à une certaine distance l'un de l'autre pour réaliser des zones d'enfichage destinées à recevoir respectivement un embout dénudé d'un conducteur de raccord, une partie centrale (11) agencée entre les canaux d'enfichage avec un logement (21) de ressort pour loger le ressort de serrage (14) réalisé en une pièce, ledit ressort pouvant être mis en place de l'extérieur avec deux paires de langues présentant chacune deux langues (32, 33) situées l'une derrière l'autre, une paire de langues pouvant être placée dans chaque zone d'enfichage, caractérisée en ce que dans le rail de contact (2, 2′) est réalisé un évidement (4) dans lequel peut être placée la partie centrale (11) du porte-borne (1) réalisé séparément du rail de contact (2, 2′), en ce que chaque zone d'enfichage est formée localement par un segment de raccord (36) du rail de contact (2, 2′), et en ce que le ressort de serrage (14) peut être placé de telle manière dans le logement (21) du ressort que le porte-borne (1) et l'embout de chaque conducteur de raccord sont fixés sous une précontrainte vis-à-vis du rail de contact (2, 2′) ou du segment de raccord associé.
  2. Borne de raccord selon la revendication 1, caractérisée en ce que l'évidement (4) est limité latéralement par deux barrettes (36) agencées l'une en face de l'autre en direction de l'axe longitudinal (12) du rail de contact (2, 2′), en ce que chaque patte en forme de n, formée verticalement vers l'extérieur de part et d'autre sur les extrémités des bras du porte-borne en forme de U présente une surface de retenue (52) pouvant être appliquée sur un côté de la barrette (36) correspondante associée qui est opposé à l'un des ressorts de serrage (14), et en ce que chaque côté d'une barrette (36) qui est orienté vers le ressort de serrage (14) forme un segment de raccord.
  3. Borne de raccord selon la revendication 2, caractérisée en ce que chaque patte (22) a une section en forme de U pour recevoir une barrette (36), la surface de retenue (52) étant formée par une surface de retenue (52) de la section en forme de U.
  4. Borne de raccord selon la revendication 2 ou 3, caractérisée en ce que chaque barrette (36) présente une dépression (30) s'étendant en direction longitudinale (12).
  5. Borne de raccord selon les revendications 1 à 4, caractérisée en ce qu'un côté transversal de l'évidement (4) s'étendant sensiblement transversalement à l'axe longitudinal (12) est réalisé sous la forme d'une arête de cisaillement (3) pour détacher les porte-bornes (1) lors de leur mise en place dans un évidement (4).
  6. Borne de raccord selon les revendications 3 à 5, caractérisée par des logements et des saillies d'encliquetage s'étendant en direction de l'axe longitudinal (12), qui sont réalisés alternativement sur le rail de contact (2, 2′) et le porte-borne (1) et qui s'engagent les uns dans les autres pour fixer le porte-borne (1) sur le rail de contact (2, 2′).
  7. Borne de raccord selon la revendication 6, caractérisée en ce que sur une face antérieure et/ou postérieure du bras extérieur (25) de chaque patte (22) est réalisé une encoche (25) pour recevoir chacune une saillie d'encliquetage (20) agencée latéralement à côté d'une barrette (36).
  8. Borne de raccordement selon l'une des revendications 1 à 7, caractérisée en ce que la partie centrale (11) présente une zone de section en U avec deux bras médians (37), et en ce qu'une face transversale de l'évidement (4) présente deux entailles (8) pour recevoir chacune un biseau de guidage (26) d'un bras médian (37).
  9. Borne de raccord selon la revendication 8, caractérisée en ce que l'autre face transversale de l'évidement (4) présente sensiblement vis-à-vis des entailles (8) deux coins de guidage (23) destiné chacun à venir en appui contre un segment d'un bras médian (37).
  10. Procédé de fabrication d'une borne de raccord composée d'un rail de contact (2, 2′), d'un porte-borne (1) et d'un ressort de serrage (14) selon l'une des revendications 1 à 9, caractérisé en ce que les porte-bornes (1) et le rail de contact sont fabriqués séparément à partir d'une bande de tôle métallique (16) par matriçage et découpage, un porte-borne (1) à mettre en place dans un évidement (4) d'un rail de contact (2 2′) étant séparé de la bande de tôle métallique (16) pendant la mise en place.
  11. Procédé selon la revendication 10, caractérisé en ce que la séparation est assurée par action d'un côté transversal de l'évidement réalisé sous la forme d'une arête de cisaillement (3).
  12. Procédé selon la revendication 10 ou 11, caractérisé en ce qu'un rail de contact (2, 2′) avec porte-borne (1) en place est soumis à un traitement de surface par galvanisation.
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 EP0472040A1 (fr) 1992-02-26
EP0472040B1 true EP0472040B1 (fr) 1994-06-22

Family

ID=6856773

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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)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2904149A1 (fr) * 2006-07-19 2008-01-25 Legrand France Borne automatique integrant une cloison de guidage et appareillage electrique comprenant une telle borne
FR2911222B1 (fr) * 2007-01-09 2013-04-26 Legrand France Borne de connexion a double appui.
DE202007015004U1 (de) * 2007-10-29 2009-03-12 Weidmüller Interface GmbH & Co. KG Anschlußvorrichtung mit einer Stromschiene
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
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
US9922778B2 (en) * 2015-10-19 2018-03-20 Switchlab Inc. Switch wire connection device
TWI581532B (zh) * 2016-09-13 2017-05-01 Combination of track terminals

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1589649A (en) * 1977-05-28 1981-05-20 Weidmueller Kg C Screwless terminals for electrical conductors
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 (fr) * 1987-03-26 1987-06-11 Popp + Co Gmbh, 8582 Bad Berneck, De

Also Published As

Publication number Publication date
FI913976A0 (fi) 1991-08-22
FI95633C (fi) 1996-02-26
DE59101992D1 (de) 1994-07-28
NO301953B1 (no) 1997-12-29
FI913976A (fi) 1992-02-24
NO913181L (no) 1992-02-24
EP0472040A1 (fr) 1992-02-26
ATE107800T1 (de) 1994-07-15
FI95633B (fi) 1995-11-15
NO913181D0 (no) 1991-08-15

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