DE8520408U1 - Pluggable assembly with electrical fuse elements for distributors - Google Patents

Description

Siemens Aktiengesellschaft Our symbol Berlin and Munich VPA 85 G 1 4 4 8 DE

Pluggable assembly with electrical fuse elements for distributors _

The invention relates to a plug-in assembly with electrical fuse elements for distributors of telecommunications, in particular telephone exchanges.

Such an assembly is e.g. German utility model 82 09 267 became known. Thereafter, the strip-like assembly has a plurality of in a carrier part partially embedded, transverse to the longitudinal direction of the stamped conductor tracks, which with

f Recesses for receiving and soldering connection lugs the fuse element are provided. On the component side of the assembly there are two subscriber lines for each two fuse elements designed as surge arresters and zwsi as varistors in a receiving chamber of the carrier part arranged. Every acceptor are assigned to three conductor tracks, of which the middle and one of the outer ones with the subscriber lines and the other external ones are connected to earth. The varistors are arranged in the middle between the surge arresters.

Another assembly has become known through the documents of the German utility model 82 09 243, at which takes the place of two individual surge arresters a 3-electrode arrester occurs, at the outer pole of which the Subscriber lines and whose middle pole is connected to earth. The conductor tracks are accordingly symmetrical assigned to the reception chambers. The two with

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the traces connected to the participant lines lie outside and the grounded conductor track between the two in the middle of the receiving chamber.

The invention is based on the object with the same structural parts the alternative shot of a 3 Llek- ä to enable trode arresters or two individual arresters in a receiving chamber.

This object is achieved by the invention according to claim 1 solves. The symmetrical arrangement of the conductor tracks with the grounded conductor track in the middle enables both the connection a 3-electrode arrester and two varistors, which are arranged at the other end of the chamber. With a diagonal arrangement of two varistors and two surge arresters the result is a rotationally symmetrical distribution that corresponds to the arrangement of the conductor tracks. Dei 'available standing space is optimally used in particular with regard to the division width of the chambers, so that if necessary Realize both variants with one support part.

In the following the invention is based on one in the drawing illustrated embodiment explained in more detail. 25th

Fig. 1 shows a plan view of an assembly consisting of a carrier part, punched conductor tracks and fuse elements consists,

FIG. 2 shows a section along the line II-1I in FIG. FIG. 3 shows a section along the line III-III in FIG. 1.

According to FIGS. 1, 2 and 3, a plug-in assembly consists of a carrier part 1, stamped partially embedded therein Conductor tracks 2 and varistors 3 and surge arresters 4, 5. The carrier part of the strip-like assembly is through cross webs 6 in individual receiving chambers

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for the fuse elements 3, 4, 5 divided. Every receiving chamber three conductor tracks are assigned, from inside the middle one is connected to a common protective earth. The two lateral conductor tracks 2 are out to the opposite side of the assembly, where they form plug-in contact surfaces 7 with contact elements a distribution strip are contactable. These contact elements are in connection with the subscriber lines.

The figures show that in a carrier part per receiving chamber both a 3-electrode arrester 5 with two varistors 3 as well as two individual arresters A with two varistors can be arranged. The individual arresters are located here 4 and the varistors 3 in a receiving chamber diagonally opposite one another, so that the subscriber connections and the earth connections are arranged symmetrically. This corresponds to the arrangement of the conductor tracks. The connection points the terminal lugs are combined in the middle of the assembly, so that several Soldering points can be reached at the same time. The 3-electrode arrester 5 is located on one side of the receiving chamber, the associated varistors 3 on the opposite Side of the receiving chamber.

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Claims (1)

- a - VPA 85 G H 4 8 DE Claim to protection Plug-in assembly with electrical fuse elements for distributors of telecommunications, in particular telephone switching systems, the strip-like assembly having a plurality of punched conductor tracks which are at least partially embedded in a carrier part and run transversely to the longitudinal direction and which have recesses for receiving and for soldering connection lugs of the fuse elements On the assembly side of the assembly for each subscriber line pair two fuse elements designed as surge arresters and two as varistors are arranged in a receiving chamber of the carrier part, and two conductor tracks are connected to the two subscriber lines and one conductor track is connected to earth for each receiving edge,
characterized in that the varistors (3) and the surge arresters (4,5) are arranged diagonally opposite one another in the receiving chambers and that the conductor tracks (2) connected to earth run in the middle of the receiving chambers and the two conductor tracks connected to the subscriber lines ( 2) extend on both sides of the grounded conductor track (2). ti * ά ii * · · ♦ I β I