DE2750638A1 - OVERVOLTAGE ARRANGEMENT DEVICE FOR TERMINAL STRIPS OF REMOTE INDICATION - Google Patents

Description

KRONE GmbH, 1000 Berlin 37, Goerzallee 311 27 50638

Surge arrester device for Terminal strips for telecommunications technology

The invention relates to a surge arrester device for connection strips in telecommunications technology, each as a plurality of surge arresters arranged next to one another receiving, pluggable insulating housing formed is, in which the arresters are held on both sides by crown contacts, with the earth-side contacts are attached to a common rail, and aims to create such a device that accordingly can be produced inexpensively as a mass-produced article due to their high demand.

9098 19/0502

• τ

Such surge arrester devices are in various known constructive designs. In addition to the dimensions of the arrester, the respective structure was also taken into account the connection strips are taken into account in its dimensions and connection forms.

The object of the present invention is to provide a surge arrester device (magazine) which for a connection strip in LSA technology according to patent application P 27 25 551 and a further development of this according to one further additional registration in preparation is.

It is therefore in adaptation to this connection block A prerequisite that in the surge arrester device proposed here, the arrester is arranged in two rows takes place without lateral offset. In addition, the aittige arrangement of the contact springs to be tapped is between the incoming ones and outgoing ladders.

Based on the prior art mentioned at the beginning, this object is achieved according to the invention by the teaching of the claim 1 solved.

9O9819 / 0BO2

- Y-

Thereafter, it is provided that the lower crown contacts projecting upwards in the housing are formed downwards Carry standing contact blades in pairs in a longitudinal direction extending centrally on the housing externally molded guides are held.

These measures also offer three advantages. First, the fact that the contact blades are guided in pairs, one A simpler arrangement is achieved, secondly, good contact is ensured in the terminal strip and, thirdly, this is achieved Magazine secured against transverse displacement within the connection strip.

Further important features of the invention can be seen in the fact that - as is known per se - standing below upper crown contacts attached to a metallic earth rail which, however, each have an angled surface on the front side, to which a fork spring contact is attached laterally is integrally formed and that a magazine guide is formed on the front side of the bottom side of the housing, which with the Fork spring contact is aligned.

Through these two mutually supportive measures, a safe earth contact is achieved and on the other hand, a safeguard against longitudinal displacement of the magazine in the terminal strip.

909819/05 0 2

An equally important group of beneficial measures the invention consists in that the housing is made in two parts, these parts being mutually latchable are such that the lower crown contacts only need to be inserted into the lower part and locked in place Upper part can be held in a fixed position.

Finally, through further inventive measures, the invention provides for an electrical improvement through structural Extension of the creepage distances, for sufficient ventilation of the arrester, which can be easily removed from dea Magazine and ultimately due to the fact that the lower crown contact ait dee Kontaktaesser over one of the base this contact is connected on one side tangentially outgoing web, so that for all to be installed lower Crown contacts only one and the same design is required, which represents a structural simplification.

An embodiment of the invention will now be based on described in the drawing.

909819/0502

Show in it

1 shows the side view of the surge arrester device (Magazine) with inserted earth rail, with the left part broken open to show the position the crown contacts in the housing, the earth knife in the aligned guides and the fork spring earth contact and to represent that of a magazine guide;

Fig. 2 is a top view of the surge arrester device

direction of Fig. 1, with a part of the earth rail on the left has broken up. the position and arrangement of the lower arrester contacts and the cutting lines II - II are shown and

3 shows a cross-section through the housing of the arrester device 1 and 2 along the lines I - I and in the lower part a view of the earth connection, one of the knife guides and one magazine guide .

In the following description it is assumed to be known a surge arrester device for connection strips in telecommunications, each of which is a plurality of surge arresters arranged next to one another receiving, pluggable insulating housing formed

909819/0502

is, in dee the arrester on both sides of the crown contacts are held, the earth-side contacts are attached to a common rail.

According to Fig. 1 to 3 it is provided according to the invention that the lower crown contacts 2 projecting upwards in the housing 1 carry downward contact blades 3, which are held in pairs in longitudinally extending guides k formed on the outside in the center of the housing 1, the upper crown contacts 5 standing downwards are attached to a metallic earth rail 6, which has an angled surface 6a, 6b on each end, on each of which a fork spring contact 6c, 6d is laterally formed.

1 and 3 show that a magazine guide 8, 8 * is formed on the front side of the bottom side 7 of the housing, which is aligned with the fork spring contact 6c, 6d. The magazine guide 8, 8 * consists of a pin 8a and a web 8b, which can be connected to the connecting web 4a associated with the contact knife guide k, whereby an even better guidance of the magazine in the connector strip is achieved.

909819/0502

In the context of the invention, it is particularly important according to FIG. 3 that the housing 1 is made in two parts and consists of the lower part la and the upper part Ib.

The upper part Ib is within the lower part la Can be connected to one another via latching means 9a, 9b.

The latching means 9a / 9b are preferably all in on both sides Snap connections 10, 10 'extending in the longitudinal direction on both side walls of the lower and upper part la, Ib executed (Fig. 3).

Fig. 1 and 3 show that the lower part la of the housing 1 as a housing trough with the bottom part 11, the side walls 12, 12 * and the end faces 13, 13 ', on the outer edges of which narrow webs 13a, 13b, 13'a, 13'b (Fig. 2) are formed, is trained.

The upper part Ib of the housing 1 is designed as a grid-like box that is open at the top and bottom, with a number of internal transverse walls l6, l6 '... being arranged in the middle between the side walls \ k , \ k * parallel to the end faces 15, 15' a number of longitudinally extending longitudinal walls 17, 17 '·. is connected.

9098 19/0 ^ 02

The length walls 17 «17 '·· are on their underside around the Thickness of the contact eater 3 shortened, over two of these loosely inserted contacts 2, 2 'or contact eater 3, 3 * to hold in their working position (Fig. 2).

In Fig. 3 it is shown that the longitudinal walls 17, 17 ' have a further clearance or recess 18 in which a rib 19 is arranged to extend the creepage distances is.

As can be seen from FIG. 1, the side walls l4, lk 'of the upper part 1b of the housing 1 have recesses 20, 20' ... assigned to the arresters for ventilating them.

Fig. 3 shows that the bottom plate II of the lower part la des Housing 1 has a through hole 21 under each lower crown contact 2, 2 *. It serves to give you about too tightly seated arrester to eject.

Furthermore, Fig. 1 shows that on the angled lateral stiffening surfaces 6e, 6f of the earth rail 6 near the surfaces 6a, 6b each have an opening 6g, 6h for attaching a screwdriver Or the like. To remove the earth bar 6 from the housing 1, is provided.

909819/0502

■ / -

From Fig. 2 it can be seen that the upper part Ib is shorter than the lower part la. In the free space on both sides of the magazine there is therefore space for an elongated hole 22, 22 'through which the earth contact 6c, 6d extends.

Finally, in Fig. 2 it is shown that the lower crown contact 2 with the contact blade 3 via a web extending tangentially from the base of the contact 2 on one side 2a is connected.

This measure allows the crown contacts 2, 2 '(Fig. 3) and their contact blades 3, 3' to be arranged in pairs, with only one and the same execution is required for both.

Claims

90981 9/0502

Claims (12)

KRONE GmbH, 1000 Berlin 37 patent claims 1.) Surge arrester device for connecting leads in telecommunications technology, which is designed as a pluggable insulating material housing that accommodates a large number of surge arresters arranged next to one another and in which the arresters are held on both sides by crown contacts, the earth-side contacts being attached to a common rail,
characterized, that the lower crown contacts (2) projecting upward in the housing (l) carry molded downward contact blades (3) which are held in guides (k) which extend in the longitudinal direction and are centrally formed on the outside of the housing (l). 909819/0502 "_ ORIGINAL INSPECTED 2. Apparatus according to claim 1, characterized in that the downwardly standing upper crown contacts (5) are attached to a metallic earth rail (6) which has an angled surface (6a, 6b) at each end, one fork spring contact (6c, 6d) is formed on each side is. 3 · Device according to claim 1 and 2, characterized in that on the bottom side (7) of the housing (1) each a magazine guide (8, 8 ') is integrally formed with the fork spring contact (6c, 6d) is aligned. k. Device according to claims 1 to 3 »characterized in that the housing (l) consists in two parts of the lower part (la) and the upper part (lb). 5. Apparatus according to claim 4, characterized in that that the upper part (lb) can be connected to one another within the lower part (la) via latching means (9a, 9b). 90981 9/0502 6. Apparatus according to claim 5.
characterized, that the locking means (9a, 9b) as on both sides in the longitudinal direction extending snap connection (10, 10 ') are executed, 7. Device according to claims 1, 3 and 4 to 7 t, characterized in that that the lower part (la) of the housing (l) as a housing trough ■ it the bottom part (ll), the side walls (12, 12 ') and the End faces (13, 13 '), on their outer edges sctmale webs (13a, 13b, 13'a, 13 * b) are integrally formed. 8. Device according to claim 7
characterized, that the upper part (lb) of the housing (l) as above and below open grid-like box is formed, between the side walls (l4, l4 ') parallel to the Front sides (15, 15 ') a number of internal transverse walls (l6, l6' ..) are arranged, the bit by a number are connected by longitudinal walls (17, 17 '...) extending in the longitudinal direction. 9. Device according to claims 1 and k to 8, characterized in that that the longitudinal walls (l7 »17 '··) on their underside around the The thickness of the contact blades (3) are shortened by two of these loosely inserted contacts (2, 2 ') or contact blades (3 3Ji "to record their working position. 9098'9 / 0 502 10. Device according to claims 1 and k to 9, characterized in that the longitudinal walls (17 * 17 ') have a further clearance or recess (l8) in which a rib (19) is arranged to extend the creepage distances. 11. Device according to claims 1 and k to 10, characterized in that the side walls (ΐΊ, lk ') of the upper part (lb) of the housing (l), the arresters associated recesses (20, 20' ..) for their ventilation exhibit. 12. Device according to claims 1, k and 7 · characterized in that the base plate (H) of the lower part (la) of the housing (l) has a through bore (2l) under each lower crown contact (2, 2 '). 13 · Device according to claim 2, characterized in that that on the angled lateral stiffening surfaces (6e, 6f) of the earth rail (6) near the surfaces (6a, 6b) each have an opening (6g, 6h) for attaching a screwdriver or the like to remove the earth bar (6) from the housing (l), is provided. 909819 / 0B02 Ik. Device according to Claims 1 and 9, characterized in that the lower crown contact (2) is connected to the contact knife (3) via a web (2a) extending tangentially from the base of the contact (2) on one side. 909819/0502