EP1638167A1 - Borne électrique ayant une cage de serrage - Google Patents

Borne électrique ayant une cage de serrage Download PDF

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Publication number
EP1638167A1
EP1638167A1 EP05020011A EP05020011A EP1638167A1 EP 1638167 A1 EP1638167 A1 EP 1638167A1 EP 05020011 A EP05020011 A EP 05020011A EP 05020011 A EP05020011 A EP 05020011A EP 1638167 A1 EP1638167 A1 EP 1638167A1
Authority
EP
European Patent Office
Prior art keywords
walls
clamping screw
receiving space
connecting part
part according
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
EP05020011A
Other languages
German (de)
English (en)
Other versions
EP1638167B1 (fr
Inventor
Peter Moser
Thomas Riedler
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.)
Tridonic Connection Technology GmbH and Co KG
Original Assignee
Tridonic Connection Technology GmbH and Co KG
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 Tridonic Connection Technology GmbH and Co KG filed Critical Tridonic Connection Technology GmbH and Co KG
Priority to SI200531672T priority Critical patent/SI1638167T1/sl
Priority to PL05020011T priority patent/PL1638167T3/pl
Publication of EP1638167A1 publication Critical patent/EP1638167A1/fr
Application granted granted Critical
Publication of EP1638167B1 publication Critical patent/EP1638167B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • 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
    • H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut
    • H01R4/42—Clamping area to one side of screw only
    • 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
    • H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
    • 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
    • H01R4/363—Conductive members located under tip of screw with intermediate part between tip and conductive member

Definitions

  • the present invention relates to an electrical connection part having a receiving space into which a conductor can be inserted through a receiving opening.
  • the receiving space has two substantially opposite walls, which can be moved relative to each other with a clamping screw.
  • the conductor may in particular be on the one hand, for example, a stiff wire or flexible strands.
  • the invention relates to a junction box with such an electrical connection part.
  • Such an electrical connection part serves to produce an electrical contact between an electrical conductor and a further electrical device, for example in the form of a device terminal in a socket.
  • a further electrical device for example in the form of a device terminal in a socket.
  • conductor terminals may be used in cooker sockets.
  • FIG. 13a A known embodiment of an electrical connection part is shown in Fig. 13a.
  • this connection part is provided that the conductor 130 between the head of a clamping screw 131 and a ribbed conductor support surface 132, in which the clamping screw can be screwed, is clamped.
  • Fig. 13b shows this connection part without the clamping screw
  • Fig. 13c shows a variant.
  • connection part A disadvantage of this known type of connection part is given by the fact that the screw heads are generally subject to variations in their dimensions due to their manufacturing process, so that - especially for very thin wires and small failing screw heads - can not be ruled out that the head between screw head and Side wall slips out.
  • the orientation of the thread is subject to fluctuations, so that it may happen that the neck of the clamping screw is not aligned exactly perpendicular to the conductor support surface. This can also lead to a poor clamping.
  • the direction of rotation of the screw must be taken into account when inserting the conductor.
  • a further electrical connection part is shown, as is known from the prior art.
  • a "pull cage" is provided for receiving the conductor, which - with reference to FIG. 14 - is bounded below by a nut 140 of the clamping screw 141 and laterally and rearwardly by a bent stamped part.
  • the clamping screw is passed through the upper wall of the Wernerfigs and through the mother, so that an inserted conductor can be clamped by tightening the clamping screw in the Werkafig.
  • this connection part is reduced by the formation of the Werklafigs the risk of lateral slipping out of the clamped conductor.
  • this connection part is more expensive to manufacture and handle than that shown in Fig. 13a, because this connection part has an additional component in the form of the nut.
  • the invention is based on the object, starting from the illustrated prior art, to improve an electrical connection part or a junction box.
  • the connection part or the junction box Easy to use and easy to use in production.
  • an electrical connection part which has a receiving space, for example a "cage-like" receiving space, for at least one conductor.
  • the conductor may be, on the one hand, a rigid wire, on the other hand, on the other hand, multi-wire or multi-core flexible strands.
  • the receiving space has a receiving opening through which the conductor can be inserted into the receiving space.
  • the receiving space has at least two, preferably substantially opposite walls.
  • connection part has a clamping screw, by the actuation of which the two walls can be moved relative to one another so that the conductor can be clamped between the two walls, that is to say in the receiving space.
  • the invention provides that the two walls, at least during manufacture, as will be explained in more detail below, are formed by a curved one-piece stamped part.
  • the connecting part according to the invention can thus be made in particular of only two parts, namely the stamped part and the clamping screw. This is advantageous for the production. In particular, therefore, no additional nut or the like is necessary.
  • connection part In the "ready-to-mount state" of the connection part, the two walls are so far apart that the conductor can be inserted.
  • the "cage” or receiving space is therefore opened to accommodate the head.
  • the clamping screw is already partially screwed in, to the extent that it already grasps.
  • the two walls are formed by a bent one-piece stamped part. Therefore, there is a mechanical fixation of the two walls to each other in this assembly-ready state.
  • This has the advantage that in this state, the risk of independent release of the clamping screw of the stamped part is practically excluded. An independent opening or closing of the receiving space is thus virtually impossible. This is particularly important under the action of mechanical forces of importance, as may occur, for example, in the form of shaking or bumping or the like, for example, during transport of the connection part to an end user, in general.
  • the risk of autonomous loosening of the clamping screw is virtually eliminated if the two walls are accordingly strongly biased in the assembly-ready state of the connection part relative to the clamping screw.
  • This can for example be given by one of the two walls in this state presses directly or indirectly, for example, approximately in the direction of the longitudinal axis of the neck of the clamping screw against the head of the clamping screw.
  • the neck of the clamping screw can for example, be held in a thread in the other wall.
  • the pressure may continue to be caused, for example, by the residual stress that occurs when bending the stamped part in the ready-to-assembly state.
  • a noise such as rattling or the like, caused by a mutual movement of clamping screw and receiving space is prevented.
  • a corresponding noise could give an end user the impression of getting loose parts and thus possibly a defective product. Avoiding this noise thus helps to give the end user a good and safe feeling while receiving the product.
  • connection part according to the invention therefore, this preparatory operation is no longer necessary since the delivery, as mentioned above, can already take place in the ready-to-assembly state. This contributes to the fact that the connection part according to the invention is easy to handle in handling.
  • the stamped part has a recess and a tab, wherein the tab can be bent into the recess in such a way that it engages in the recess and / or that it can be suspended in the recess.
  • the open receiving space can be formed so that the inserted conductor is seen in all its lateral directions is surrounded on all sides by the receiving space.
  • a lateral slipping out of the clamped conductor is reliably prevented at the junction formed by the hinged flap in this way.
  • the recess may be provided in a side wall of the receiving space, and the tab may be formed as an attachment of one of the two walls.
  • the two walls in the ready-assembly state of the connection part are arranged substantially flat and parallel to each other. This makes it easy to realize that the two walls can be moved towards one another or away from each other by turning the clamping screw. A secure clamping and electrical contact is thereby supported.
  • the recess on an elongated portion which extends substantially perpendicularly between the two walls.
  • the example Anchor-shaped and suspended in the elongated portion or tab can then be moved in the elongated portion in a direction perpendicular to the two walls.
  • the tab securely in the recess and on the other hand, the two walls can be moved to the clamping of the conductor to each other.
  • the recess with the hinged or engaging tab thus also represents a guide for the intended relative movement of the two walls.
  • the two walls each have a bent portion, wherein these two portions are arranged such that they slide relative to each other or "each other" in the relative movement of the two walls.
  • the two corresponding edges are arranged perpendicular to the intended insertion direction for the conductor.
  • the bent portions are bent at right angles.
  • the intended sliding movement particularly reliably prevents the two walls from rotating relative to one another during their relative movement, that is to say when closing the receiving space.
  • the folded portion of one of the two walls with an end face or end face slides during the relative movement of the two walls, so when closing the receiving space on a side wall of the receiving space along. This can reduce the risk of lateral tilting of the corresponding wall during the relative movement of the two walls.
  • the fold itself improves the stability of the respective wall significantly.
  • one of the two walls has a threaded hole for the clamping screw.
  • a guide for the movement of this wall is achieved.
  • a lateral tilting or the like is excluded in this way.
  • the wall is guided at its intended movement upon actuation of the clamping screw perpendicular to the longitudinal axis of the neck of the clamping screw.
  • the wall with the threaded hole on two bent portions This increases the stability.
  • such a folded portion can fulfill guiding function in the relative movement of the two walls.
  • the edges may extend over the entire width of the corresponding wall, for example.
  • the edges may be provided perpendicular to the insertion direction of the conductor.
  • the edges can be provided parallel to each other.
  • One of the two folded portions may be identical to the above-mentioned folded portion which slides relative to a folded portion of the corresponding other wall (ie the wall without threaded hole).
  • the other wall has a through hole (without thread) for the neck of the clamping screw.
  • the clamping screw for producing the assembly-ready state with its neck can first be inserted through the through hole and then screwed into the threaded hole.
  • the through hole in this case is therefore slightly larger than the screw neck but smaller than the screw head.
  • the bias of the walls already shown above against the clamping screw with the associated advantages is achieved in a simple manner.
  • the stamped part in a region between the two holes, ie between the threaded hole and the through hole, a portion of reduced material width for the intended bending of the stamped part.
  • "diminished material width” is to be understood as meaning that the stamped part has less material along a straight line which is perpendicular to the connecting line between the centers of the two holes than along a line offset parallel to this straight line between the two holes.
  • the section of reduced material width can therefore be formed, for example, by a "web” or “connecting web” or by at least two such webs.
  • a web connects a portion of the wall with the through-hole with a portion of the wall with the threaded hole.
  • the section of reduced material width acts in this case, as a kind of "hinge” or bending point.
  • This effect is both advantageous with regard to the "initial bending" of the stamped part, ie from the plane state to the state of the stamped part in FIG Assembly-ready state of the connection part, as well as in terms of the "further bending” of the stamped part, so the bend that takes place when tightening, so when closing the receiving space. This applies at least for the first phase of closing, as will be explained in more detail below.
  • the portion of reduced material width may be formed by a free cut in the stamped part between the threaded hole and the through hole, so that two webs are formed by the free cut.
  • the free cut has a width which is greater than the diameter of the through hole. In this way, as it were, a hinge is formed by the two webs, which supports a movement guidance of the two walls during the bending, in particular during the "initial bending" of the stamped part.
  • the receiving space between the two plane-parallel walls on one side has a side wall in which the recess is provided with the hinged tab and on the side opposite this side wall preferably two webs are provided.
  • the clamping screw passes through the receiving space in this case.
  • the web or at least one of the webs has at least one notch.
  • the notch can do so be dimensioned that at this point a predetermined breaking point is formed. It can therefore be provided that when the clamping screw is rotated at the location of the notch or, in the case of several notches, at the locations of the notches, the stamped part breaks. As a result, a quasi plane-parallel approach of the two walls and thus a good and safe electrical contact with the conductor is facilitated especially for relatively thin wires after breakage of the webs.
  • the closing of the receiving space can thus be divided into two phases in this case:
  • the first phase begins, starting from the ready-mounting state of the connecting part with the operation of the clamping screw and ends with the breakage of the webs.
  • the second phase begins with the breakage of the bars and ends with firmly clamped conductor, so tightened clamping screw.
  • the webs can still support the relative movement of the two walls by acting against lateral twisting and keep the walls plane-parallel.
  • the webs, caused by the residual stress of the stamped part in this area increasingly press against the walls and act on the side of the webs quasi as a spacer. This is increasingly opposed to a further plane-parallel approach of the walls. This spacer effect is canceled by rupture of the webs and is therefore no longer opposed to the subsequent final approach of the walls in the second phase.
  • the conductor is inserted into that part of the receiving space which extends between the neck of the clamping screw and the side wall with the hinged flap.
  • This part is continuously closed in a plane perpendicular to the inserted conductor, so that lateral slipping out of the conductor can be excluded.
  • This is special important if it is provided that the webs break when closing the receiving space. On the side of the webs of the receiving space in this case with tightened clamping screw is therefore not closed throughout. A lateral slipping out of the conductor in the direction of the webs is prevented even after breakage of the webs by the located between the conductor and the webs neck of the clamping screw.
  • the threaded hole and the through hole seen in the insertion direction are arranged eccentrically with respect to the two walls, on the side on which the portion of reduced material width, so for example, the at least one web, is located.
  • the portion of the receiving space in which the conductor is preferably inserted relatively enlarged.
  • connection part further comprises at least one contact extension, preferably in the form of a flat tongue (hereinafter also referred to as "flat tongue” for short).
  • flat tongue serves the easier connection with further electrical conductors.
  • contact extension is formed as a projection of a wall section of the receiving space.
  • the receiving space on a rear wall which is opposite to the receiving opening.
  • a rear wall can serve as a conductor stop, which thus represents a mechanical limitation during insertion or insertion of the conductor into the receiving space.
  • the rear wall may be formed by a bent extension of one of the two walls.
  • the rear wall can be the folded section of a wall, for example the upper wall, mentioned above.
  • the rear wall has a smaller width than the receiving space, wherein the rear wall leaves a lateral portion of the receiving space freely open.
  • the conductor (in addition or exclusively) of "backwards" - and through this left open part - is introduced into the receiving space.
  • this may be advantageous in terms of use in an electrical junction box.
  • connection part has a grounding plate, which is formed or integrated, for example, on one of the two walls.
  • an electrical connection part which has a receiving space with a receiving opening for at least one conductor.
  • the receiving space has at least two walls.
  • the connection part has a rotatably arranged clamping screw for a relative movement of the two walls. According to the invention, the two walls are biased in the ready-assembly state of the connection part relative to the clamping screw.
  • the bias against the clamping screw can be advantageously caused by the walls themselves or by a separate clamping or spring element.
  • a spring or rubber element presses from one side or axially against the head of the clamping screw.
  • an electrical connection part which has a receiving space with a receiving opening for at least one conductor.
  • the receiving space has at least two walls.
  • the connection part has a rotatably arranged clamping screw for a relative movement of the two walls.
  • the inserted conductor continues to be enclosed in all lateral directions, ie in all directions extending at right angles to the longitudinal axis of the conductor, along a closed line formed by the receiving space or by the receiving space and by the clamping screw in the assembly-ready state of the connecting part. In particular, therefore, this line has no gap or any other interruption, by which a lateral slipping out of the conductor would be possible.
  • an electrical connection box which has at least one electrical connection part according to the invention.
  • a junction box with five or six such connection parts may be provided.
  • the connection parts can have different numbers of flat tongues, for example partially two and partially three flat tongues.
  • One of the connecting parts may have a grounding plate.
  • FIG. 1 shows a first exemplary embodiment of an electrical connection part 1 according to the invention for connecting a conductor 4, wherein the conductor 4 represents the conductive wire of an electrical cable 30.
  • the conductor 4 can be given in particular in the form of a stiff wire or a stranded flexible strand.
  • connection part 1 has a cage-like receiving space 2, which has a receiving opening 3 on its front side, ie on the side from which the conductor 4 is inserted.
  • FIG. 1 For ease of description, the directional designations used in the following are shown in FIG. 1 with thick arrows at the top, bottom, right, left, back and front.
  • the receiving space 3 has an upper wall 5 and a lower wall 6.
  • the upper wall 5 has a through hole 7 for a clamping screw 9;
  • the lower wall 6 has a threaded hole 8 with a thread 13 for the clamping screw 9.
  • the two walls 5, 6 are formed in the state shown in Fig. 1 of the connection part 1 by a bent one-piece punched part 10, whose section is shown schematically in Fig. 3.
  • the state of the connecting part 1 shown in FIGS. 1, 2, 4 and 5 is referred to here as the "ready to mount" state, ie the state in which the two walls 5, 6 of the receiving space 2 are so far apart from each other the conductor 4 can be inserted or inserted and the clamping screw 9 already in the threaded hole 8 summarizes.
  • the clamping screw 9 is still screwed in so far that they - caused by the residual stress of the bent stamped part - exerts a slight pressure on the upper wall 5, while the neck of the clamping screw 9 is held by the thread 8. In this way, therefore, a voltage or bias is caused by the upper wall 5 is pressed from below against the head of the clamping screw 9. This voltage is so great that an independent release of the clamping screw 9 is reliably prevented, especially under the action of forces in the form of shaking or the like.
  • connection part 1 In the assembly-ready state of the connection part 1 thus the two walls 5, 6 are biased against the clamping screw 9.
  • the clamping screw 9 By this bias of the two walls 5, 6 relative to the clamping screw 9 is achieved in particular that the clamping screw 9 - especially when exposed to forces in the form of shaking or the like, as they occur during transport in general - is secured against self-loosening. Therefore, the connection part 1 can be delivered in the ready-assembly state, for example, to an end user, without the risk of an independent release of the clamping screw 9 and an associated independent opening or closing of the receiving space 2 consists. In this sense, we can speak of a "securing against losing the clamping screw".
  • the clamping screw 9 and the stamped part 10 can not move relative to each other, a corresponding noise in the form of rattling or the like is excluded. Again, this is advantageous because such noise can cause a consumer to feel a potentially defective product in their hands.
  • connection part 1 is substantially plane-parallel.
  • the stamped part 10 has a recess 11 and a tab 12.
  • the tab 12 is according to the embodiment shown here anchor-shaped and can be hung by bending the stamped part 10 in the recess 11.
  • Figures 4 and 5 show the thus bent punched part 10 with hinged flap 12th
  • the recess 11 of the stamped part 10 on the side facing away from the through hole 7 a widened portion 31 which is dimensioned so that the armature-shaped tab 12 can be inserted therethrough, without causing the anchor neck 32 must be twisted.
  • the recess 11 is slot-shaped, that is elongated, said elongated portion in the bent state, that is, in the assembly-ready state between the two walls 5, 6 and is aligned perpendicular thereto.
  • the hinged flap 12 is bent upwards, as shown in Figures 4 and 5.
  • the anchor neck 32 is slightly narrower than the slot 11, so that the hinged flap 12 along the slot, ie along the recess 11, can be moved.
  • This movement of the tab 12 in the AuEnglishung 11 takes place, starting from the ready-mounting state, with a tightening of the clamping screw 9 instead.
  • the tab 12 and the recess 11 is thus also a guide to the relative movement of the two walls 5, 6 given to each other.
  • a left side slipping out of the conductor 4 is reliably prevented by a left wall 33 of the receiving space 2.
  • the stamped part 10 has two webs in the region between the through hole 7 and the threaded hole 8, a front web 14 and a rear web 15. These webs 14, 15 are formed by a cutout 34 in the stamped part 10 formed.
  • the two webs 14, 15 act as hinges during bending of the stamped part 10 from the originally flat state in the assembly-ready state and thus facilitate the production of the plane-parallel alignment of the two walls 5, 6.
  • the two webs 14, 15 so at This embodiment is an area "reduced material width" in the sense of the above.
  • the cutout 34 is shaped so that it can exist in the lower wall 6 a lug 35.
  • connection part 1 furthermore has three contact extensions in the form of flat tongues 17, 18, 19. These serve for contacting with further electrical conductors, for example within an electrical junction box.
  • the receiving space 2 is bounded at the rear by a rear wall 20.
  • This rear wall 20 serves as a conductor stop for the conductor 4 to be introduced or inserted.
  • the rear wall 20 is double-connected curved extension of the upper wall 5 is formed. (Alternatively, of course, an otherwise formed rear wall may be provided, for example in the form of an integrally formed on a junction box plastic part or the like.)
  • FIG. 6 shows a view from the right (without clamping screw 9)
  • FIG. 7 shows a view from the left
  • FIG. 8 shows a view from the front
  • FIG. 9 also shows a view from the front, but without ladder 4 and clamping screw 9
  • FIG. 10 is a top view.
  • two locking recesses 36 on the left side wall 33 can be seen, which serve for positioning of the connection part 1 in an electrical junction box, such as a stove junction box.
  • an electrical junction box such as a stove junction box.
  • corresponding locking lugs can be provided for this purpose.
  • connection part 1 according to the invention is given by the fact that it can be delivered ready for assembly. This is possible because a mutual fixation of the upper and lower walls 5, 6 is given by the webs 14, 15 and therefore the above already shown bias of the two walls 5, 6 relative to the clamping screw 9 can be achieved. As shown, therefore, a loosening of the clamping screw 9 in shaking, hitting or other similar actions, as they occur during transport in general, practically impossible.
  • transporting the connecting part 1 according to the invention thus there is thus virtually no risk of autonomous opening or closing of the receiving space 2. For the end user, it is therefore not necessary in particular in a first preparatory operation to open the recording room or "cage".
  • the clamping screw 9 sits relatively firmly in the assembly-ready state of the connection part in the thread 13, so that a particularly secure grip is ensured for transport. If the clamping screw 9 is turned off in this case by the end user to close the receiving space 2, a certain increased initial resistance has to be overcome when turning, before the screw turns slightly more easily in the following.
  • a second embodiment is shown, in which the two webs 14, 15 each have a notch 16.
  • the two webs 14, 15 each have a notch 16.
  • the notch of the front web 14 can be seen in Fig. 11, since the corresponding notch 16 of the rear web 15 is covered by the upper wall 5.
  • notches 16 represent predetermined breaking points.
  • the clamping screw 9 which is shown only schematically without thread in FIG. 11
  • a plane-parallel approach of the two walls 5 and 6 in the second phase of the closing of the receiving space 2 is better possible because with the breakage of the webs 14, 15, the mutual mechanical fixation of the two walls 5, 6 is omitted and then on this page the walls are no longer kept at a distance.
  • a rear wall 20 'of the receiving space 2 according to the second embodiment is formed by an extension of the lower wall 6.
  • FIGS. 12a and 12b a connection part according to the invention is shown installed in an electrical socket 37, for example a stove connection box.
  • the ready-to-mount state is shown in FIG. 12 a, that is to say the state with the receiving space 2 opened to receive the conductor 4.
  • FIG. 12 b shows the state in which the conductor 4 is between the upper wall 5 and the lower one Wall 6 is clamped.
  • FIGS. 15 and 16 show a third exemplary embodiment, with FIGS. 15 and 16 showing the connecting part without clamping screw. In the following, only essential differences from the already mentioned exemplary embodiments will be discussed.
  • the connecting part has two lateral walls of the receiving space 2, namely a right wall 38 and a left wall 33 '.
  • the two lateral walls 38, 33 ' are arranged plane-parallel.
  • the two webs 14 'and 15 ' are provided between the left wall 33 'and the lower wall 6'. They also have notches 16, as shown in particular in FIG. 16.
  • the conductor can be inserted in this embodiment, in that part of the space of the receiving space, which lies between the neck of the clamping screw and that side wall which is opposite to the side wall with the webs, in this case in the space between the clamping screw and the right side wall 38th
  • the conductor to be inserted is in this embodiment continue to mention that the conductor here not only from the front, but also - can be inserted from the "backwards" into the receiving space or said subspace - according to the chosen direction designation here.
  • the "rear wall” 20 in this exemplary embodiment does not extend over the entire width of the upper wall 5, but only over a "partial width” B, so that an "alternative" rear receiving opening for the conductor to be inserted between the right end face 21 of the rear wall 20 and the right wall 38 is formed.
  • This alternative insertion direction is therefore essentially "antiparallel" to the first-mentioned insertion direction.
  • the clamping screw is not centered with respect to the width of the receiving space, but laterally offset, on the side on which the webs 14 'and 15' are located.
  • the receiving space is relatively enlarged.
  • this asymmetric arrangement of the clamping screw has the effect that, when the receiving space is closed, the webs 14 ', 15' are comparatively less levered, and thus lateral tilting of the lower wall 6 'in this closing phase can be reduced.
  • the lower wall 6 ' has a front folded portion 41 and a rear folded portion 42. Both folded portions 41, 42 extend over the entire width of the lower wall 6 '. The edges are perpendicular to the insertion direction.
  • the lower wall 6 ' is provided with a groove 43 which is parallel to the insertion direction and which extends completely over the two folded portions 41, 42 and the intermediate portion of the lower wall 6'.
  • the groove 43 is provided in an area between the threaded hole 8 and that side wall, which is the side wall with the two webs 14 ', 15' opposite, here between the threaded hole 8 and the right side wall 38.
  • this is merely an optional feature.
  • the stability of the lower wall 6 ' is significantly increased.
  • this also increases the inherent stability of the lower wall 61 ', ie the stability of the wall after breakage of the webs 14', 15 '.
  • the bent portions 41, 42 counteract in particular a lateral bending of the lower wall, which further increases the security of the clamping. This stability is already increased by only one folded section.
  • the two folded portions 41, 42 are designed such that they rest with their right end faces on the right wall 38 and thus provide a further guidance when closing the receiving space. In particular, this reduces the risk of a lateral tilting away of the lower wall 6 'when closing the receiving space.
  • the rear folded portion 43 is further aligned plane-parallel to the rear wall 20 and abuts against this. This achieves that when closing the receiving space of the rear folded portion 43 on the rear wall 20 - if necessary with some play of movement - along slides and in this way a stable guidance is achieved.
  • This guide thus prevents in particular a lateral rotation of the lower wall 6 'when closing the receiving space after breakage of the webs 14', 15 '.
  • This embodiment of the rear wall 20 on the one hand and rear bevelled section 43 on the other hand, with respect to the linear guide makes the recess and the tab in principle expendable.
  • this embodiment differs from the aforementioned in that the recess 11 'has no widened portion 31 and the tab 12' is not designed anchor-shaped.
  • the tab 12 'rather only engages in the recess 11' so far that it terminates approximately flush with the right-hand wall 38 or is slightly set back relative to the right-hand wall.
  • connection part in a receiving region, for example in an electrical connection box.
  • a holding strap 50 is provided at the upper end region of the recess 11 ' is provided.
  • the mounting bracket 50 can be produced in a simple manufacturing manner from common lateral cutouts with the recess 11 '.
  • a rearward bent portion 51 is provided for rearward fixation.
  • the wall with the webs in this case the left wall 33 ', has a lower edge 52, which can likewise be used for fixing or holding the connecting part.
  • FIG. 18a shows a view obliquely from above
  • Fig. 18b shows a view obliquely from below.
  • the junction box for each of the connecting parts in each case a receiving area 55, which may be designed by a correspondingly shaped recess on the underside of the box.
  • the receiving area 55 has, according to this example, three latching devices which act on the holding points 50, 51, 52 mentioned above. In this way, therefore, in particular the position of the flat tongues can be fixed with respect to the can.
  • connection part inserted into the designated receiving region 55 has three flat tongues 17, 18, 19.
  • connection parts which have a different number of flat tongues.
  • variants may be provided which, as shown in FIG. 17b, only have a "right flat tongue” at the rear, or only a "left flat tongue” as shown in FIG. 17c.
  • partially such variants of the connection part are used in the non-designated receiving areas.
  • FIG. 17e shows a further variant of the connecting part according to the invention in accordance with the third exemplary embodiment, in which a grounding plate 57 is formed.
  • a grounding plate 57 is formed.
  • FIGS. 18a and 18b in the case of this connection box one of the five receiving regions 55 is equipped with such a connection part with grounding plate 57.
  • FIGS. 19a and 19b show a further example of a junction box, in which six receiving areas for the connection parts are provided. Again, one of the receiving areas is equipped with a variant with grounding plate 57. The corresponding embodiment of the connection part is shown in FIG. 17d.
  • a material for the stamped part 10 is steel of different degrees of hardness, for example, in a thickness of 0.8 mm (this is the standard thickness for flat tongues).
  • a conductor cutting technique can be used.
  • the threaded hole 8 may be provided to first attach a pre-hole and then by means of pulling a cylindrical approach to form, in which then the thread 13 can be rolled.
  • the notch in the bridge can be made by embossing.
  • connection part 1 is suitable for conductor cross sections of a conductor 4 in the range of 0.5 to 10 mm 2 .
  • the dimension indicated by “a” in FIG. 12a may be, for example, 4.6 and the dimension designated by “b” may be 4.2 mm.
  • the unbent punched part can be about 43 mm long from the flat tongue 17 to the tab 12 and about 28 mm in its longitudinal extent (ie perpendicular thereto).
  • the connector according to the invention is suitable for all types of conductors, in particular in the form of stiff wires and strands. In particular, it is not necessary to provide the conductor with a wire end ferrule prior to connection.
  • the connector according to the invention can be used for currents in the range of, for example, 16 to 41 A.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connection Or Junction Boxes (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
EP05020011A 2004-09-20 2005-09-14 Borne électrique ayant une cage de serrage Active EP1638167B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200531672T SI1638167T1 (sl) 2004-09-20 2005-09-14 Električna sponka z vpenjalno kletko
PL05020011T PL1638167T3 (pl) 2004-09-20 2005-09-14 Elektryczny element przyłączeniowy z klatką zaciskową

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202004014616U DE202004014616U1 (de) 2004-09-20 2004-09-20 Elektrisches Anschlussteil mit Zugkäfig

Publications (2)

Publication Number Publication Date
EP1638167A1 true EP1638167A1 (fr) 2006-03-22
EP1638167B1 EP1638167B1 (fr) 2012-11-28

Family

ID=33483642

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05020011A Active EP1638167B1 (fr) 2004-09-20 2005-09-14 Borne électrique ayant une cage de serrage

Country Status (4)

Country Link
EP (1) EP1638167B1 (fr)
DE (1) DE202004014616U1 (fr)
PL (1) PL1638167T3 (fr)
SI (1) SI1638167T1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3404366A (en) * 1964-12-01 1968-10-01 United Carr Inc Apertured clip
DE2733637A1 (de) * 1977-07-26 1979-02-08 Licentia Gmbh Elektrische anschlussklemme
FR2547117A1 (fr) * 1983-06-01 1984-12-07 Pouyet Henri Borne de raccordement pour conducteur electrique
EP0237388A1 (fr) * 1986-02-20 1987-09-16 Hager Electro S.A. Dispositif d'alimentation ou de pontage pour appareils électriques juxtaposés
US4875876A (en) * 1988-08-31 1989-10-24 Thomas & Betts Corporation Electrical connector for overlapped conductors
CH678776A5 (en) * 1989-07-25 1991-10-31 Schrack Components Ag Supplementary terminal for large flat or round cables - clips cable under existing screw head with contact pressure maintained by leaf spring between two portions

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2459560A1 (fr) * 1979-06-19 1981-01-09 Alsthom Cgee Bornes de connexion pour conducteur electrique isole
DE3421875A1 (de) * 1984-06-13 1985-12-19 Brown, Boveri & Cie Ag, 6800 Mannheim Anschlussklemme
DE4026037C2 (de) * 1990-08-17 1994-02-17 Abb Patent Gmbh Anschlußklemme
DE19615837C2 (de) * 1996-04-20 2000-12-21 Abb Patent Gmbh Anschlußklemme

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3404366A (en) * 1964-12-01 1968-10-01 United Carr Inc Apertured clip
DE2733637A1 (de) * 1977-07-26 1979-02-08 Licentia Gmbh Elektrische anschlussklemme
FR2547117A1 (fr) * 1983-06-01 1984-12-07 Pouyet Henri Borne de raccordement pour conducteur electrique
EP0237388A1 (fr) * 1986-02-20 1987-09-16 Hager Electro S.A. Dispositif d'alimentation ou de pontage pour appareils électriques juxtaposés
US4875876A (en) * 1988-08-31 1989-10-24 Thomas & Betts Corporation Electrical connector for overlapped conductors
CH678776A5 (en) * 1989-07-25 1991-10-31 Schrack Components Ag Supplementary terminal for large flat or round cables - clips cable under existing screw head with contact pressure maintained by leaf spring between two portions

Also Published As

Publication number Publication date
EP1638167B1 (fr) 2012-11-28
DE202004014616U1 (de) 2004-11-18
SI1638167T1 (sl) 2013-10-30
PL1638167T3 (pl) 2013-04-30

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