EP2922146A1 - Device for protecting against excess voltage - Google Patents

Abstract

The invention relates to a device for protection against overvoltages for use in a bus system, comprising a base part (1) which can be latched onto a support rail (2) and a plug-in module (5) which can be plugged into the base part (1) in the overvoltage protection elements are, wherein in the inserted position spring contacts (4) of a base part (1) with contact tongues (6) of a plug-in module (5) are contacted, each socket part (1) each near each adjacent socket part (1) facing side surface plug contact elements (7,8, 9), wherein in each case two aligned parallel to the mounting rail longitudinal direction, adjacent first plug contact elements (7) are connected to each other by conduction and are intended for connection to a first potential of a supply voltage, two further second plug contact elements (8) are interconnected and connected to the Connection to a remote signaling device are determined and two i further third plug-in contact elements (9) are connected to each other by line and are intended for connection to a second potential of a supply voltage, further with plugged plug-in modules (5) with surge arrester whose functional components with the first, second and third plug contact elements (7,8, 9) connecting conductors are contacted, wherein the plugging direction of the plug contact elements (7,8,9) is aligned parallel to the plugging direction of the plug-in modules (5).

Description

The invention relates to a device for protection against overvoltages for use in a bus system, comprising at least one single-part or multi-part base part which can be latched onto a carrier rail and has terminals for electrical lines of a bus system which are in a conductive connection with spring contacts of the base part, and at least one plug-in module plugged into the socket part are received in the overvoltage protection elements which protrude with terminal contact tongues from the plug-in module and which can be plugged into an approximately U-shaped receptacle in each case a base part in the direction transverse to the mounting rail, wherein in the inserted position of the plug-in module, the spring contacts of a base part are contacted with the contact tongues of a plug-in module, wherein the plug-in modules each preferably except the overvoltage protection elements each have microcontroller with defect signal display.

From the De 10 2006 034 164 B4 a multi-pole lightning current and / or surge arrester in Klemmausführungen is known. A generic Related embodiment is from the DE 20 2006 006 659 U1 known. This known device, which can be used in a bus system, has a base part which can be latched to a mounting rail and to which an electrical device, in particular a surge arrester can be contacted and fastened. The base part has pairwise contacts, which are arranged in series in DIN rail longitudinal direction on a busbar. By this arrangement, in the multiple arrangement of such overvoltage protection devices several base parts can be snapped onto a mounting rail and installed in close proximity to each other, so that the base parts of adjacent elements can be plugged together in which the parts are moved in the rail longitudinal direction. This installation design has the disadvantage that in a multiple installation of such elements next to each other, a removal of a single complete element is difficult, since then only a distance to the adjacent elements must be generated to cancel the contact and remove the one element including base part.

Similarly, this is in the WO 2013/024151 A1 specified and explained. It is in this regard to the local FIGS. 7 to 9 together with the associated description.

Based on this prior art, the present invention seeks to provide a device of the generic type in which it is possible is, then, when several such devices are snapped on a mounting rail side by side, to remove a single device part completely without other parts of the device must be solved or moved.

To achieve this object, the invention proposes that each base part each near each adjacent base part facing side surface has plug contact elements, preferably three plug contact elements - preferably arranged in two parallel rows - form, with two aligned parallel to the mounting rail longitudinal direction, adjacent to each other first plug contact elements interconnected with each other and are intended for connection to a first potential of a supply voltage, two further second plug contact elements are connected to each other by conduction and are intended for connection to a remote signaling device and two further third plug contact elements are connected to each other and connected to a second line Potential of a supply voltage are determined, further being plugged plug-in modules with surge arrester whose preferably provided micro-control r and defect signal display with the first, second and third plug contact elements connecting conductors are contacted, wherein the plugging direction of the plug contact elements is aligned parallel to the plugging direction of the plug-in modules.

In such an arrangement, the base parts in a simple manner next to each other on a mounting rail be snapped so that they are immediately adjacent to each other with their side surfaces. In this base parts then appropriate plug-in modules can be inserted. The fact that each base part has the corresponding plug-in contact elements, on the one hand, the base parts can be installed side by side and used without electrical connection with each other. On the other hand, the plug contact elements can be used in a simple manner for the through-connection of adjacent elements, in particular base parts, the installation of such compounds is easy to perform or the removal of such connections between adjacent plug contact elements adjacent socket parts is easily possible when the plug-in modules with Overvoltage protection elements are removed from the respective base part, since then the plug contact elements are exposed and accessible from above, so that they are accessible and operable in the same plug-in direction as the plug-in modules that receive the overvoltage protection elements.

It is preferably provided that the plug-in contact elements are covered by a releasably attached cap.

This configuration is helpful and necessary when plug contact elements are not contacted by other parts. The cap then forms a dust cover and protection against access.

A preferred development is seen in the fact that three first, second and third plug contact elements immediately adjacent base parts are each connected to each other by plug-in contact bridges.

According to this embodiment, pluggable contact bridges are provided, which connect each position and functionally correct a number of plug contact elements of a base part with this adjacent row of plug contact elements of an adjacent base part with each other. This type of connection can be made in each case via a plurality of base parts, which are disengaged on the mounting rail, so that all elements are functionally connected to each other in the manner of a bus. The connection is just as easy to pick up, in which the pluggable contact bridges are removed in individual areas, so that then no longer provided with contact bridges socket part can be removed and contrary to the insertion direction of the plug-in modules without the adjacent elements would have to be moved or manipulated in any other way.

A preferred development is also seen in the fact that in addition a second base part is lined up with a plug-in module with a power supply and a remote signaling device to further first base parts, which also has first, second and third plug contact elements, and that a pluggable contact bridge for connecting the first, second and third plug contact elements with the corresponding first, second and third plug contact elements of an immediately adjacent the first base part is arranged so that via the power supply, the power supply of the microcontroller of the plug-in modules with power supply and via the Fernsignalisierungsleitung the remote signaling element of the additional plug-in module is optionally controlled together with the power supply module provided display means.

According to this embodiment, a second base part can be snapped and positioned next to further first base parts on the mounting rail. Furthermore, this second base part can be connected with corresponding contact bridges with a base part of the first type located directly next to it, so that an electrical contact is made in the desired direction. The second base part can accommodate as a plug-in module an element which has a power supply and a remote signaling device, via the power supply, the plug contact elements and the contact bridges a connection is made, which takes over the electrical supply, for example, the microcontroller of the plug-in modules inserted into the other base parts are, and it can also be done via the Fernsignalisierungsleitung a forwarding of corresponding signals from the base parts of the first kind, or the plug-in modules therein to the remote signaling device of the second base part or the plug-in module located therein, so that a corresponding remote signaling is possible. Again, this is again by the plug contact elements in conjunction with the plug-in contact bridges in a simple manner a connection between the individual elements made or dissolved when such an element is to be removed. The installation effort is extremely low and therefore inexpensive to perform.

Embodiments of the invention are illustrated in the drawings and described in more detail below.

Figur 1

eine erste Ausführungsform einer erfindungsgemäßen Vorrichtung in einer Vormontagesituation; als reinen Überspannungsschutz ohne Netzteil und Fernsignalisierung; ohne Busverbindung zwischen den Modulen;

Figur 2

eine zweite Ausführungsform mit Netzteil und Fernsignalisierung und mit Busverbindung zwischen den einzelnen Modulen;

Figur 3,5,6

ein steckbares Netzteil- und Fernsignalisierungsmodul mit Abdeckkappen in einer Vormontagesituation (Auslieferungszustand);

Figur 4,7

ein steckbares Überspannungsschutzmodul mit steckbaren Kontaktbrücken in einer Vormontagesituation (Auslieferungszustand).

It shows:

FIG. 1

a first embodiment of a device according to the invention in a pre-assembly situation; as pure overvoltage protection without power supply and remote signaling; without bus connection between the modules;

FIG. 2

a second embodiment with power supply and remote signaling and with bus connection between the individual modules;

Figure 3,5,6

a pluggable power supply and remote signaling module with cover caps in a pre-assembly situation (state of delivery);

Figure 4.7

a pluggable surge protection module with pluggable contact bridges in a pre-assembly situation (delivery state).

In the embodiments, overvoltage protection devices for use in a bus system are shown. The devices consist of at least one single or multi-part base part 1, which can be latched onto a mounting rail 2. The base parts 1 each have connection terminals 3 for electrical lines, for example a bus system, which are in spring connection with spring contacts 4 of the base part 1. Furthermore, plug-in modules 5 are provided per se known type in which overvoltage protection elements are added. These plug-in modules 5 have terminal contact tongues 6, which protrude in the embodiment down from the plug-in modules 5. The plug-in modules 5 are plugged into an approximately U-shaped receptacle in each case a base part 1 in the direction transverse to the mounting rail 2, so for example in the view of the figures from top to bottom. In the inserted position, the spring contacts 4 are contacted in each case one base part 1 with the contact tongues 6 each of a plug-in module 5. Preferably, the plug-in modules 5 except the overvoltage protection elements on microcontroller with defect signal display. The plug-in modules 5 may be connected in a known manner in the inserted position latching with the base parts 1. Such as in FIG. 4 it can be seen, each socket part 1 near its two side surfaces which are immediately adjacent to other base parts 1 in assembly target position, plug-in contact elements 7,8,9, each forming 3 plug contact elements 7,8,9 arranged in two parallel rows. In each case two parallel to the mounting rail longitudinal direction aligned, adjacent first plug contact elements 7 are interconnected within the base part 1 with each other connected and, for example, determined for connection to a first potential of a supply voltage. Two further second plug-in contact elements 8 are also connected to each other in a line and intended for connection, for example, to a remote signaling device. Two further third plug-in contact elements 9 are in turn connected to one another by conduction and for the connection, for example, to a second potential of a supply voltage. When inserted plug-in modules 5 with surge arresters whose microcontroller and defect signal display with the first, second and third plug-in contact elements 7,8,9 connecting conductors are contacted. The plugging direction of the plug contact elements 7, 8, 9 is aligned parallel to the plugging direction of the plug-in modules 5.

By this arrangement it is achieved that each element consisting of base part 1 and plug-in module 5 can be removed from the mounting rail 1, without that adjacent socket parts together with plug-in modules would have to be moved in mounting rail longitudinal direction. So it is an easy assembly and disassembly and easy replacement without much manipulation possible.

Such as in FIG. 3 shown, the plug-in contact elements 7,8,9 covered by releasably attached cover 10. The caps can be latched to the base part, so that they are held captive. They only serve to cover the plug-in contact elements 7,8,9 to secure them against contamination.

An alternative embodiment is in FIG. 2 shown for example. In this case, three first, second and third plug contact elements 7,8,9 adjacent socket parts 1 are connected to each other by plug-in contact bridges 11, so that a continuous contact is formed over the entire unit. According to this embodiment FIG. 2 In addition, a second base part 12 is arranged with a plug-in module 13, wherein the plug-in module 13 has a power supply and a remote signaling device. This second base part 12 together with plug-in module 13 is queued to further first base parts 1. This second plug-in module 13 also has contact tongues 6, which engage in corresponding spring contacts 4 of the second base part 12 when the parts are plugged together. Furthermore, the second base part 12 likewise has first, second and third plug contact elements 7, 8, 9 in two rows spaced apart from one another along the side surfaces of the second base part. It is also here a pluggable contact bridge 11 for connecting the first, second and third plug contact elements 7,8,9 of the base part 12 with the corresponding first, second and third plug contact elements 7,8,9 of the immediately adjacent first base part 1 is arranged. This makes it possible, via the power supply of the parts 12, 13 to realize the electrical supply of the microcontroller of the plug-in modules 5 with supply voltage and control via the Fernsignalisierungsleitung a remote signaling element of the other plug-in module 13 including provided in this module display means.

According to this embodiment FIG. 2 is at the end portions of the complete kit, so at the outer end portions of the base part 12 and the outer base part 1 each have a cap 10 which covers the still exposed plug contact elements 7,8,9.

The invention is not limited to the embodiments, but in the context of the disclosure often variable.

All disclosed in the description and / or drawing single and combination features are considered essential to the invention.

Claims (4)

Device for protection against overvoltages for use in a bus system, comprising at least one single-part or multi-part base part (1) which can be latched onto a support rail (2) and has connection terminals (3) for electrical lines of a bus system which are provided with spring contacts (4 ) of the base part (1) are in conductive connection, and at least one on the base part (1) plug-in plug-in module (5) are accommodated in the overvoltage protection elements which protrude with terminal contact tongues (6) from the plug-in module (5) and in an approximately u in the insertion position of the plug-in module (5), the spring contacts (4) of a base part (1) contacted with the contact tongues (6) of a plug-in module (5) are, wherein the plug-in modules each preferably except the overvoltage protection elements each have microcontroller with defect signal display, characterized in that each sock Part (1) in each case near each adjacent to a neighboring base part (1) side facing plug contact elements (7,8,9), preferably each three plug contact elements (7,8,9) - preferably arranged in two parallel rows - form, with two each aligned adjacent to the mounting rail longitudinal direction, adjacent to each other first plug contact elements (7) are connected to each other in line and are intended for connection to a first potential of a supply voltage, two more second plug-in contact elements (8) are connected to each other by line and are intended for connection to a remote signaling device and two further third plug-in contact elements (9) are connected to each other by line and are intended for connection to a second potential of a supply voltage, further wherein plugged plug-in modules (5 ) with surge arrester whose preferably provided microcontroller and defect signal display with the first, second and third plug contact elements (7,8,9) connecting conductors are contacted, wherein the plugging direction of the plug contact elements (7,8,9) parallel to the plugging direction of the plug-in modules (5) is aligned. Apparatus according to claim 1, characterized in that the plug-in contact elements (7,8,9) are covered by a releasably secured cap (10). Apparatus according to claim 1, characterized in that three first, second and third plug contact elements (7,8,9) immediately adjacent base parts (5) in each case by plug-in contact bridges (11) are interconnected. Device according to claims 1 to 3, characterized in that in addition a second base part (12) is lined up with a plug-in module (13) with a power supply and a remote signaling device to further first base parts (1), which likewise has first, second and third plug contact elements (7, 8, 9), and in that a pluggable contact bridge (11) for connecting the first, second and third plug contact elements (7, 8, 9) to the corresponding first, second and third plug contact elements (7,8,9) of an immediately adjacent first base part (1) is arranged so that the power supply, the microcontroller of the plug-in modules (5) with supply voltage and via the Fernsignalisierungsleitung the remote signaling element of the additional plug-in module (13) optionally together with Power supply module provided display means is controlled.

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