EP1104047A2 - Terminal structure for a low voltage distributor - Google Patents

Abstract

The terminal arrangement is intended for a low-voltage distributor. It has an additional base (Z) arranged outside a main base of the distributor. This additional base (Z) serves to accommodate a neutral (N) and / or a protective conductor rail (PE) and at least one connecting terminal that contacts one of the two conductor rails. The additional base (Z) is designed as a plug-in base. The connection terminal is arranged in an insulating housing (1) of a plug-in part (S) which can be plugged onto the additional base (Z). This terminal arrangement is characterized by great security against contact and easy assembly. <IMAGE>

Description

TECHNICAL AREA

The invention is based on a terminal arrangement for one Low voltage distributor with one outside of a main base of the distributor arranged additional base for receiving at least one protective and / or Neutral conductor rail and with at least one with one of the two rails contactable connection terminal.

Low-voltage distributors based on plug-in base systems contain a Plug-in socket system on the modularized Plug-in parts, which can be used as switching devices, surge arresters, and feed blocks or connecting terminal can be formed. Such Low voltage distributors allow a high degree of flexibility when planning a Distributor and are characterized by rapid manufacturability, simple feeding and free interchangeability of the plug-in parts.

STATE OF THE ART

A terminal arrangement of the type mentioned in the opening paragraph "smissline-S, system with S: innovation with system" from CMC Carl Maier + Cie AG, Schaffhausen / Switzerland, in particular pages 2 and 51. This Terminal arrangement is for a low voltage distributor with external Neutral (N) and protective conductor (PE) rails are provided and have one of the N and the additional base carrying the PE conductor rail and connecting terminals for the N and the PE conductor rail. These terminals are over Screw connections fixed on the assigned conductor rails. At a such distributor becomes a disconnector for the N-conductor plugged into the main base required in order to start up or check the distributor Isolation of the distributor or the consumers hanging on the distributor from earth to eat.

SUMMARY OF THE INVENTION

The object of the invention is as set out in the claims based on a terminal arrangement for a low-voltage distributor with a To create socket arrangement, which against each other by great security unintentional touch and characterized by easy assembly.

In the terminal arrangement according to the invention, the additional base is as Plug-in base and is the connection terminal in an insulating housing a plug-in part arranged on the additional base. It is achieved that the connection terminal during the manufacture of the distributor and at Assembly work on the distributor is no longer fixed by screws or must be solved, but it can now be done in a very simple manner Plugging the plug-in part containing them onto the pluggable one Additional base and thus also on the N or PE conductor rail provided in this base, be fixed. If necessary, the clamp can be easily pushed through Pulling off the additional base and thus also removed from the assigned rail become. Since the terminal is housed in an insulating housing, is at the same time it also ensures safe protection against unintentional contact with the terminal

Since the additional base is designed as a plug base, this can be done by the rail pulled plug-in part to form a defined separation distance between Terminal and rail are fixed on the additional base. By Subsequent pulling off and plugging onto the rail can result in the separation section be closed again. The terminal arrangement therefore fulfills the function a disconnector. A previously required to disconnect the N conductor rail Disconnector can therefore be omitted.

In the case of a connection terminal for the N conductor rail, contacts the Terminal after removing the plug from the additional base and the PE conductor rail, the connection terminal is in the Isolation position also grounded, which increases safety when working on Distributor contributes.

Good securing of the terminal arrangement against loosening of the plug-in part is achieved if one on each of the additional base and the insulating housing Connection element is integrally formed, and if these two connection elements when contacting the conductor rail by plugging the plug part onto the Interact additional base to form a snap connection.

With a space-saving and easily releasable snap connection one of the two connecting elements as an elastically deformable hook trained and is free in terms of easy disassembly End of the hook, a stop for attaching an assembly tool is provided.

By additional molded onto the additional base and the insulating housing Fasteners, which when contacting the conductor rail Attach the plug-in part to the additional base to form another Snap connection cooperate, securing the plug part is still additionally improved. It has proven to be advantageous here, one of these other connecting elements as an elastically deformable hook and a so interacting other of these fasteners than from the hook form graspable edge.

For manufacturing reasons, it is advantageous that the insulating housing of the plug-in part is formed from two assembled housing halves, which adjoin each other in a plane that is transverse to one of the rails. It can then face each other inside surfaces of the housing halves Connection element are formed, which when plugging the Interact housing halves to form a clamp connection. In addition can then be particularly easily in the inner surfaces brackets for storing the Terminal are molded. In addition, without a large Effort in each half of the housing recesses for performing a Contact tulip of the connection terminal and a first of the two conductor rails, for Carrying out a current conductor, for carrying out a means for releasable Fasten the current conductor to the connection terminal and, if necessary, also for Implementation of a second of the two conductor rails can be provided. Further is it then easily possible on opposite sides of each Half of the housing one in the direction of the additional base elastic to form deformable hooks of a snap connection.

Easy assembly and maintenance of the terminal arrangement according to the invention and a quick securing of the plug-in part is guaranteed if the Additional base has standardized recesses for receiving one of the Conductor rails and the plug-in part which can be inserted transversely to the conductor rail, and run parallel to the conductor rail and by an elastically deformable hook of the Plug-in part forming a snap-on edge that can be gripped behind.

To enable easy mounting of the additional base in the distributor, are on one of its outer surfaces extended two in the direction of insertion of the plug part Guide elements are formed, which are arranged and designed in such a way that when you plug in the additional base to the main base in the manner of a Interact with the dovetail with a guide on the main base.

By one arranged between the two guide elements Snap hook, which has an edge of the Reaches behind the main plug base, the additional base is reliable and yet easily detachable fixed on the main base.

To accommodate the terminal arrangement according to the invention also on a already existing mounting rail of the low-voltage distributor allow, can additionally on a side facing away from the wells Surface of the additional base fasteners for snapping the Mounting rail may be provided.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig.1

eine Ausführungsform einer Klemmenanordnung nach der Erfindung in perspektivischer Ansicht mit drei gleichartigen, jeweils eine Anschlussklemme enthaltenden Steckteilen S, einem Zusatzsockel Z und zwei Leiterschienen N und PE,

Fig.2

eine Aufsicht von rechts auf einen quer zu den Leiterschienen an Stellen II geführten Schnitt durch die Klemmenanordnung nach Fig.1,

Fig.3

eine Aufsicht von links auf eine einen quer zu den Leiterschienen an den Stellen II geführten Schnitt durch eine erste Ausführungsform eines der Steckteile der Klemmenanordnung nach Fig.1,

Fig.4

eine Aufsicht von links auf eine einen quer zu den Leiterschienen an den Stellen II geführten Schnitt durch eine zweite Ausführungsform eines der Steckteile der Klemmenanordnung nach Fig.1,

Fig.5

in perspektivischer Ansicht eine Teildarstellung eines den Zusatzsockel nach Fig.1 enthaltenden Sockelsystems für einen Niederspannungsverteiler,

Fig.6

eine andere perspektivischer Ansicht des Zusatzsockels des Sockelsystems nach Fig.5 und einer diesen Sockel tragenden Befestigungsschiene,

Fig.7

eine vorwiegend die Unterseite des gesamten Sockelsystems nach Fig.5 zeigende perspektivische Ansicht,

Fig.8

eine Ansicht eines Teils der Unterseite des Sockelsystems nach Fig.7, und

Fig.9

in perspektivischer Ansicht die Klemmenanordnung nach Fig.1, bei der statt dreier gleichartiger nunmehr drei unterschiedlich ausgebildete Steckteile vorgesehen sind.

Preferred exemplary embodiments of the invention and the further advantages achievable therewith are explained in more detail below with reference to drawings. Here shows:

Fig. 1

1 shows an embodiment of a terminal arrangement according to the invention in a perspective view with three identical plug parts S, each containing a connecting terminal, an additional base Z and two conductor rails N and PE,

Fig. 2

1 is a view from the right of a section through the terminal arrangement according to FIG.

Fig. 3

2 shows a view from the left of a section through a first embodiment of one of the plug-in parts of the terminal arrangement according to FIG.

Fig. 4

1 is a plan view from the left of a section through the second embodiment of one of the plug-in parts of the terminal arrangement according to FIG.

Fig. 5

a perspective view of a partial representation of a base system containing the additional base according to FIG. 1 for a low-voltage distributor,

Fig. 6

5 another perspective view of the additional base of the base system according to FIG. 5 and of a fastening rail carrying this base,

Fig. 7

5 shows a perspective view predominantly showing the underside of the entire base system according to FIG. 5,

Fig. 8

a view of part of the underside of the base system according to Figure 7, and

Fig. 9

in a perspective view the terminal arrangement according to Figure 1, in which instead of three identical three differently designed plug-in parts are now provided.

WAYS OF CARRYING OUT THE INVENTION

In all figures, the same reference symbols also designate parts with the same effect. A Terminal arrangement shown in Fig. 1 is part of a low voltage distributor. In addition to the terminal arrangement, this distributor also does not have one in the figure shown main base for installing phase conductor rails and Plug in devices. The terminal arrangement contains an additional base Z to accommodate a protective PE and a neutral conductor rail N. Analogous to that The main base (not shown) is also the additional base Z as a plug-in base is trained. The reference symbol S designates three of the same type Designated plug-in parts, each having an insulating housing 1 and one therein arranged and contactable with one of the conductor rails PE or N (from Fig.1 ) (not visible). The one on the far right in Fig. 1 arranged plug part S is inserted into the additional base Z. The Insulation housing 1 of plug-in part S forms a detachable part with the additional base Snap connection. Contacted the terminal not shown in Fig.1 then the protective conductor rail PE or the neutral conductor rail N. The one shown in Fig.2 furthest left plug-in part is inserted into the additional base Z without to contact one of the rails N or PE. Between the rail PE or N is then a defined separation distance is formed. The plug-in part S and the rails PE and N holding additional base Z thus form a disconnector, the Switch on position by the rightmost plug and its Switch-off position represented by the leftmost plug is. The plugging process when entering or. The disconnector can be switched off Position of the third plug-in part arranged in the middle can be removed.

Does the plug-in part contain one in the switched-on position with the neutral conductor rail N? Contacted terminal, this terminal can be changed when the Plug-in part from the on to the off position with the PE protective conductor rail be contacted. Then there are consumers connected to the connecting terminal grounded via the protective conductor rail PE.

From Figure 2 it can be seen how the insulating housing 1 of the plug part S in the Switch-on position with the additional base Z forms a snap connection. For this Snap connection is at the bottom left and parallel to the Conductor rails PE and N extending edge of the predominantly cuboid trained insulating material housing 1 an elastically deformable hook 2 is formed. On an outer surface of the additional base Z is a behind the hook 2 and Edge 3 aligned parallel to the conductor rails PE and N. At the Contact the PE or N conductor rail by pushing on the plug-in part S. the additional base Z, the hook is slightly deformed until it is elastic engages behind the edge 3 to form a snap connection. The plug part S is then fixed on its left side on the additional base. At the free end of the Hook 2 is a stop 4 for attaching a dashed line Assembly tool, such as a screwdriver 5, is provided. For disassembly the screwdriver 5 from above against the stop 4 in the Terminal arrangement introduced. The screwdriver is now removed by the fitter right (large) arrow tilted. Since the hook 2 is slightly behind the vertical is set back to the right, the pivot point of the tilting movement is at the base of the Hook 2 on the housing 1. The point of contact of the screwdriver 5 on the Stop 4 is now moved against the large arrow to the left (small arrow) and so the snap connection is released again.

At the bottom right edge of the insulating housing 1 is as elastically deformable hook 6 formed connecting element of another Snap connection molded. This hook works when the plug-in part is inserted S in the additional base with a parallel to the PE and N conductor rails aligned and inside edge 7 of the additional base together. When contacting the conductor rail by plugging the plug part onto the Additional base is thus formed another snap connection, which is the right one Side of the plug-in part in the additional base.

As can be seen from Figure 1, the insulating housing 1 of the plug part of two assembled housing halves 10, 11 formed. The housing halves 10, 11 adjoin each other in a plane that is transverse to the conductor rails PE and N. It can be seen from FIGS. 2 to 4 that opposing one another Inner surfaces of the housing half 10 or 11 as knobs 100 or as openings 110 trained connecting elements are molded, which at Put the housing halves 10 and 11 together to form a Clamp connection with the opposite connecting elements work together.

Brackets 101 and 111 are in the inner surfaces of the housing parts 10 and 11, respectively molded to support one shown in Figures 3 and 4 Terminal 8, containing a contact tulip 80, a conductor piece 81 and one Screw connection 82. The contact tulip 81 can be used in the manufacture of the Terminal 8 moved on the conductor piece 81 and then about Welding or soldering. It can be done in a simple way Terminals for the PE conductor rail (Fig. 3) and the N conductor rail (Fig. 4) manufactured and installed in the insulating housing 1.

Two material recesses are provided in each housing half 10, 11 (in the Figures 3 and 4 with the reference numerals 112 and 113 respectively). This Material recesses serve to carry out the N or PE conductor rail and the implementation of the contact tulip 80 contacting the PE conductor rail (Fig.3) or the contact tulip 80 contacting the N-conductor rail (Fig.4). A further material recesses 114 (see FIGS. 1, 3 and 4) are used for the implementation a conductor, not shown, to a consumer. Furthermore, one is Marerial recess 115 is provided, through which a screwdriver for releasably attaching the current conductor to the screw connection 82 can.

It can be seen from FIGS. 1, 5 and 6 that the additional base Z normalizes Has depressions, which from transverse to the conductor rails PE and N aligned partitions 9 are limited. In the partitions 9 are Openings 90 (Figures 5 and 6) are provided, which the support of the conductor rails PE and N serve. Arranged at the beginning and at the end of the additional base Z. Partitions have lugs 91 closing the openings at the top. As a result, the conductor rails are secured against falling out. The walls are 9 arranged at a defined uniform distance from each other. The normalized Wide plug-in parts S can then be inserted into the Additional base Z can be fixed immovably in the direction of the conductor rails.

Figures 5, 7 and 8 show a socket system Low-voltage distributor with the additional base Z. This additional base is on snapped a main base H of the distributor. Can be integrated into the main base Phase and neutral conductor rails as well as standardized parts that can be inserted therein, as before switchgear, infeed blocks or surge arresters just as little shown as the conductor rails that can be installed in the additional base as well as parts that can be plugged into the base and, above all, connecting terminals. On an outer surface of the additional base are the plug-in part in the direction of insertion Extended guide elements 30 are integrally formed. Two of these guide elements each are mirror-symmetrical to one perpendicular to the conductor rails extended plane, which by an to an outer surface of the additional base molded snap hook 31 is guided. This with the reference symbol E marked level is shown in Fig. 8. The two to each other Mirror-symmetrical guide elements 30 are arranged and are designed so that when the additional base is plugged into the main base in the manner of a dovetail with a guide on the main base work together. This is best seen from the view of Fig. 8 see below, from which the interlocking of two pairs of Guide elements 30 and 32 can be seen. Two mirror-symmetrical each mutually arranged pairs of guide elements 30, 32 act according to Art a dovetail guide together. When assembling the Guide elements 30 of the additional base Z to form the Dovetail guide from above into the guide elements 32 of the Main base H inserted and led down until the figures not visible stops of the guide elements 30 on the upper ends of the Guide elements 32 rest. The one while leading down on one The outer surface of the main base H rests with the formation of pretension Snap hook 31 then engages behind an edge 33 molded into the outer surface and thus fixes the additional base on the main base. According to the hook 2 is also in the hook 31 a stop 34 for attaching an assembly tool molded (Fig. 6).

On the underside of the additional base are fasteners 40, 41 for Snapping a mounting rail M provided. This mounting rail is required if the additional base is not connected to the main base becomes. The fasteners 40 are on one side of the Fastening rail arranged and reach behind this on the back. On the other side of the fastening rail M to the guide elements 30th molded lugs 41 (Figures 2 and 7), the side of the mounting rail lead, and the snap hook 31 now fulfilling a second function, which the Fastening rail engages behind (Fig. 6), fixing the additional base to the Rail M sure.

It can be seen from FIG. 9 that the plug-in parts S can be designed differently. If a connecting terminal installed in a plug-in part S _{1 has} to carry large currents, the two-part insulating material housing can be designed twice as wide and higher than the insulating material housing of a plug-in part S ₂ designed to carry smaller currents. On the side facing away from the side containing the recess 114, the insulating housing 1 has a recess which cannot be seen in FIG. 9. A side wall of the additional base is guided through this recess, which otherwise borders on the insulating housing in the smaller plug-in part S ₂ . A field 120 can also be provided on a side wall of the plug-in parts for attaching a label. The insulating housing of the plug-in parts are generally made of a temperature-resistant thermoplastic or thermosetting plastic. The housing can therefore be easily colored, for example blue for the neutral conductor N and green and yellow for the protective conductor PE. In addition to a plug-in part designed as a connecting terminal and, for example, performing disconnector functions, plug-in parts which perform other functions can also be used. For example, a plug-in part designed as an empty housing can be used, which serves to separate two conductor rail sections of the N conductor rail from one another. It is also possible for the plug-in part to be a cover piece, which may carry a mounting rail profile (plug-in part S ₃ according to FIG. 9), onto which parts with additional functions, such as surge arresters or current and voltage transformers, can be snapped on.

REFERENCE SIGN LIST

F

level

H

Main base

M

Mounting rail

N

Neutral conductor rail

PE

Protective conductor rail

S, S ₁ , S ₂

Plug-in parts

Z.

Additional base

1

Insulation housing

2nd

hook

3rd

Edge

4th

attack

5

screwdriver

6

hook

7

Edge

8th

Connection terminal

9

Partition

10, 11

Housing halves

30th

Guide elements

31

Snap hook

32

Guide elements

33

Edge

34

attack

40, 41

Fasteners

80

Contact tulip

81

Ladder section

82

Screw connection

90

openings

91

Noses

100

Fasteners, knobs

101

Mounts

110

Fasteners, openings

111

Mounts

112-115

Recesses

120

Labeling field

Claims (19)

Terminal arrangement for a low-voltage distributor with an additional base (Z) arranged outside a main base (H) of the distributor for receiving a protective (PE) and / or neutral conductor rail (N) and with at least one connecting terminal (8) that can be contacted with one of the two rails, thereby characterized in that the additional base (Z) is designed as a plug-in base and that the connection terminal (8) is arranged in an insulating housing (1) of a plug-in part (S, S ₁ , S ₂ ) which can be plugged onto the additional base (Z). Terminal arrangement according to claim 1, characterized in that the plug-in part (S, S ₁ , S ₂ ) can be plugged onto the additional base (Z) in two defined positions, such that the connecting terminal (8) in the first position with one of the two rails (N, PE) is contacted and forms a defined separation distance with the rail (N, PE) in the second position. Terminal arrangement according to claim 2, characterized in that at a connecting terminal (8) for the neutral conductor rail (N) Terminal (8) in the second position with the protective conductor rail (PE) is contacted. Terminal arrangement according to one of claims 1 to 3, characterized in that a first connecting element (2, 3) is formed on the additional base (Z) and on the insulating material housing (1), which two first connecting elements (2, 3) when contacting the Interact the conductor rail (N, PE) by plugging the plug-in part (S, S ₁ , S ₂ ) onto the additional base (Z) to form a first snap connection. Terminal arrangement according to claim 4, characterized in that a first (2) of the first two connecting elements (2, 3) as elastic deformable hook (2) is formed. Terminal arrangement according to claim 5, characterized in that on free end of the hook (2) a stop (4) for attaching a Assembly tool (5) is provided. Terminal arrangement according to one of claims 4 to 6, characterized in that a second connecting element (6, 7) is formed on the additional base (Z) and on the insulating material housing (1), which two second connecting elements (6, 7) when contacting the Interact the conductor rail (N, PE) by plugging the plug-in part (S, S ₁ , S ₂ ) onto the additional base (Z) to form a second snap connection. Terminal arrangement according to claim 7, characterized in that a first of the two second connecting elements (6, 7) as elastic deformable hook (6) is formed. Terminal arrangement according to one of claims 7 or 8, characterized characterized in that a second (3) of the first two (2, 3) and / or one second (7) of the two second connecting elements (6, 7) as graspable Edge (3, 7) are formed. Plug-in part for the terminal arrangement according to one of claims 1 to 9, characterized in that the insulating housing (1) consists of two assembled housing halves (10, 11) is formed. Plug-in part according to claim 10, characterized in that the Halves of the housing (10, 11) in a transverse to one of the conductor rails Adjacent plane (E), and that opposing each other Inner surfaces of the housing halves (10, 11) each have a connecting element (100, 110) is molded, which connecting element in the Put the housing halves together to form one Clamp connection with the opposite connecting element cooperates. Plug part according to claim 11, characterized in that in the Inner surface brackets (101) for mounting the connection terminal (8) are molded. Plug-in part according to one of claims 11 or 12, characterized in that that in each housing half (10, 11) a first recess (112) for Implementation of a contact tulip (80) of the connection terminal (8) and one first of the two conductor rails (N), a second recess (114) for Implementation of a current conductor and a third recess (115) for Implementation of a means for releasably attaching the conductor to the Terminal (8) are molded. Plug-in part according to claim 13, characterized in that a fourth Recess (113) for carrying out a second (PE) of the two Conductor rails (N, PE) are molded into each housing half (10, 11). Plug-in part according to one of claims 10 to 14, characterized in that opposite sides of each housing half (10, 11) one in the direction of the additional base (Z) guided elastically deformable Hook (2, 6) of a snap connection is formed. Additional base for the terminal arrangement according to one of claims 1 to 9, characterized in that the base (Z) has standardized recesses for receiving at least one plug-in part (S, S ₁ , S ₂ ) and transverse to one of the conductor rails (N, PE) at least one edge (2, 7) which is guided parallel to one of the conductor rails and can be gripped behind by an elastically deformable hook (2, 6) of the plug-in part, forming a snap connection. Additional base according to claim 16, characterized in that at least two guide elements (30) extending in the plug-in direction of the plug-in part (S, S ₁ , S ₂ ) are formed on an outer surface, which are arranged and designed in such a way that when the additional base (Z ) on the main base (H) interact in the manner of a dovetail with guide elements (32) of the main base (H). Additional base according to claim 17, characterized in that between the two guide elements (30) of the additional base (Z) Snap hook (40) is arranged, which when the additional base is plugged in (Z) engages behind an edge of the main base (H). Additional base according to claim 17, characterized in that on one of the recesses facing away from fasteners (40, 41) for Snapping a mounting rail (M) are provided.

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