DK151994B

DK151994B - TRANSMISSION WIRING DEVICE FOR CONNECTIONS LISTED IN THE TELECOMMUNICATION TECHNOLOGY

Info

Publication number: DK151994B
Application number: DK242878A
Authority: DK
Inventors: Horst Forberg; Manfred Mueller
Original assignee: Krone Ag
Priority date: 1977-11-09
Filing date: 1978-05-31
Publication date: 1988-01-18
Also published as: CH629918A5; DK242878A; NL7806031A; ATA345578A; GB1597820A; AT366515B; NL168091C; BE867872A; DE2750638A1; NL168091B

Description

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Opfindelsen angår en overspændingsafledningsind-retning til i telekommunikationsteknikken anvendte tilslutningslister, hvilken indretning er udformet som et stik-type hus af isolerende materiale, som optager et an-5 tal ved siden af hinanden anbragte overspændingsafledere, i hvilket hus aflederne holdes af kronekontakter på begge sider, hvorhos kontakterne på jordsiden er fastgjort til en fælles skinne, og kontakterne på anlægssiden er forbundet elektrisk og mekanisk med en stikforbindelses-10 kontakt.BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a surge arrester for connection strips used in the telecommunications technique, which is designed as a plug-type housing of insulating material, which accommodates a number of adjacent arresters, in which the housing the conductors are held by crown contacts on both sides. , wherein the contacts on the ground side are attached to a common rail, and the contacts on the plant side are connected electrically and mechanically to a plug-in connector.

Overspændingsafledningsindretninger af ovennævnte art kendes i forskellige konstruktive udførelser. Herved er der udover aflederens dimensioner også taget hensyn til de forskellige tilslutningslisters opbygning for så 15 vidt angår disses dimensioner og tilslutningsformer.Overvoltage drainage devices of the aforementioned kind are known in various constructional designs. In addition to the dimensions of the conductor, the structure of the various connection moldings has also been taken into account as regards their dimensions and connection forms.

Det tilsigtes med den foreliggende opfindelse at tilvejebringe en overspændingsafledningsindretning (magasin), som i overensstemmelse med det store behov, der er for en indretning af denne art, kan fremstilles 20 som en masseartikel til en gunstig pris, og som er monteringsvenlig og egnet til en i LSA-teknik fremstillet tilslutningsliste. (LSA = Lodde-, Skrue- og Afisoleringsfri) .SUMMARY OF THE INVENTION It is an object of the present invention to provide a surge arrester (magazine) which, in accordance with the great need of a device of this kind, can be manufactured as a mass article at a favorable price and which is assembly-friendly and suitable for a made in LSA technique connection list. (LSA = Solder, Screw and Drain Insulation Free).

Ved tilpasning til denne tilslutningsliste er det 25 derfor en forudsætning, at anbringelsen af aflederne i den her foreslåede overspændingsafledningsindretning sker i to rækker uden sideværts forskydning. Desuden er placeringen af kontaktfjederudtagene i midten mellem de tilog fragående ledere forudgivet.Therefore, in adapting to this connection list, it is a prerequisite that the positioning of the conductors in the proposed surge arrester device here is done in two rows without lateral displacement. Furthermore, the position of the contact spring outlets in the middle between the even more demanding conductors is predicted.

30 Med henblik herpå er en overspændingsaflednings indretning af indledningsvis nævnte art ifølge opfindelsen ejendommelig ved, at de i huset opadragende, nedre kronekontakter bærer nedadragende kontaktknive, der fastholdes i i længderetningen gående og i husets midter-35 plan, på ydersiden af dette udformede og fra husets underside udragende føringer, at de nedadragende, Øvre kronekontakter er fastgjort til en metallisk jordskinne, der ved hver ende har en ombøjet flade, på hvilken der DK 151994 2 er udformet en gaffelfjederkontakt, at der på undersiden af huset ved hver ende er udformet en magasinføring, som flugter med gaffelfjederkontakten, at huset består af to dele, en underdel og en overdel, og at overdelen kan for-5 bindes med underdelen gennem indgrebsorganer inde i denne.To this end, a surge arrester device of the kind initially mentioned according to the invention is characterized in that the downwardly extending lower crown contacts carry downwardly extending contact knives which are held longitudinally and in the middle plane of the housing, on the outside of this formed and from the housing. underside projecting guides, the downward projecting upper crown contacts are attached to a metallic earth rail having a bent surface at each end, on which a fork spring contact is formed, that a magazine insert is formed at the bottom of the housing at each end. , which aligns with the fork spring contact, that the housing consists of two parts, one lower part and one upper part, and that the upper part can be connected to the lower part through engagement means within it.

Herved opnås dels en enklere indretning, ved at kontaktknivene er ført parvist, dels er der tilvejebragt en god kontaktdannelse i tilslutningslisten, dels er ma-10 gasinet sikret mod forskydning på tværs inde i tilslutningslisten.In this way, a simpler device is obtained in that the contact blades are routed in pairs and partly a good contact formation is provided in the connection strip and partly the ma- chine is secured against transverse displacement within the connection strip.

Endvidere er der opnået en sikker jordkontakt og en sikring mod længdeforskydning af magasinet i tilslutningslisten.Furthermore, a secure ground contact and a protection against longitudinal displacement of the magazine have been obtained in the connection list.

15 Som følge af, at huset er udformet todelt på den angivne måde, muliggøres, at husdelene kan sammenlåses indbyrdes på en sådan måde, at de nedre kronekontakter kun behøver at blive indført i underdelen og derefter holdes på plads af den påsatte overdel.Due to the housing being formed in two ways in the manner indicated, it is possible that the housing parts can be interlocked in such a way that the lower crown contacts need only be inserted into the lower part and then held in place by the mounted upper part.

20 Endvidere er der med opfindelsen gennem yderlige re opfinderiske træk opnået en elektrisk forbedring ved konstruktive forlængelser af krybestrømvejene, en tilstrækkelig ventilering af aflederne og mulighed for en enkel udtagning af disse fra magasinet, ligesom det som 25 følge af, at den nedre kronekontakt ifølge opfindelsen er forbundet med kontaktkniven gennem et stag, der fra kronekontaktens basis forløber tangentielt ud til siden, er opnået, at der for alle nedre kronekontakter, som skal indbygges, kun kræves én og samme udførelse, hvilket 30 udgør en konstruktiv forenkling.Furthermore, with the invention through further re-inventive features, an electrical improvement has been achieved by constructive extensions of the creep current paths, sufficient ventilation of the diverters and the possibility of a simple removal thereof from the magazine, as well as the fact that the lower crown contact according to the invention is connected to the contact knife through a rod extending from the base of the crown contact tangentially to the side, it has been achieved that for all lower crown contacts to be incorporated only one and the same design is required, which constitutes a constructive simplification.

Opfindelsen forklares nærmere i det følgende under henvisning til tegningen, hvor fig. 1 viser et lodret billede af en overspændingsafledningsindretning (magasin) med indstukket jord-35 skinne, hvor den venstre del er vist i snit til illustrering af kronekontakternes placering i huset, placeringen af jordknivene i de flugtende føringer og afThe invention will be explained in more detail below with reference to the drawing, in which fig. 1 is a vertical view of a surge arrester (magazine) with an inserted ground rail, the left part of which is shown in section to illustrate the position of the crown contacts in the housing, the location of the ground knives in the escaping guides and of

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3 gaffelfjeder-jordkontakten samt placeringen af en magasinføring, fig. 2 et vandret billede af den i fig. 1 viste overspændingsafledningsindretning, hvor en del af jord-5 skinnen er fjernet til venstre til illustrering af placeringen og anbringelsen af de nedre aflederkontakter, og hvor snitlinien II-II er vist, og fig. 3 et snit gennem huset for den i fig. 1 og 2 viste afledningsindretning taget langs linien I-I i 10 fig. 2 såvel som for neden et sidebillede af jordtilslutningen, en af knivføringerne samt af den ene magasinføring.3 shows the fork-spring ground contact and the location of a magazine insert, FIG. 2 is a horizontal view of the embodiment of FIG. 1, where a portion of the ground rail is removed to the left to illustrate the location and placement of the lower diverter contacts, and where the section line II-II is shown, and FIG. 3 is a section through the housing of the housing of FIG. 1 and 2 taken along line I-I in FIG. 2 as well as below a side view of the ground connection, one of the knife guides and one magazine insert.

I beskrivelsen forudsættes som kendt en overspændingsafledningsindretning til i telekommunikations-15 teknikken anvendte tilslutningslister, hvilken indretning er udformet som et stik-type hus af isolerende materiale, som optager et antal ved siden af hinanden anbragte overspændingsafledere, i hvilket hus aflederne holdes af kronekontakter på begge sider, idet kontakter-20 ne på jordsiden er fastgjort til en fælles skinne.In the specification, as is known, a surge arrester is used for connection strips used in the telecommunications technique, which device is designed as a plug-type housing of insulating material which accommodates a number of adjacent surge arresters in which the housing the conductors are held by crown contacts on both sides, the contacts on the ground side being attached to a common rail.

Ifølge figurerne 1-3 er det ifølge opfindelsen foreslået, at de i et hus 1 opadragende nedre kronekontakter 2,2* bærer nedadragende kontaktknive 3,3', som fastholdes parvist i i længderetningen gående og i 25 husets midterplan, på ydersiden af dette udformede føringer 4, hvorhos nedadragende, øvre kronekontakter 5,5' er fastgjort til en metallisk jordskinne 6, der ved hver ende har en ombøjet flade, henholdsvis 6a og 6b, på siden af hvilken der er udformet en gaffelfjeder-30 kontakt, henholdsvis 6c og 6d.According to Figures 1-3, it is proposed according to the invention that the lower crown contacts upwardly of a housing 1 carry 2.2 * downwardly extending contact knives 3,3 ', which are held in pairs in the longitudinal direction and in the median plane of the housing, on the outside of this formed guide. 4, wherein downwardly extending upper crown contacts 5.5 'are attached to a metallic earth rail 6 having at each end a bent surface, 6a and 6b, respectively, on the side of which a fork spring contact 6c and 6d are formed, respectively. .

Fig. 1 og 3 viser, at der på undersiden 7 af huset 1 ved hver ende er udformet en magasinføring, henholdsvis 8 og 8', som flugter med en gaffelfje-derkontakt, henholdsvis 6c og 6d. Her består magasin-35 føringen, henholdsvis 8 og 8', af en stift 8a og et stag 8b, som kan være forbundet med et kontaktkniv-føringen 4 tilknyttet forbindelsesstag 4a, hvorvedFIG. 1 and 3 show that on each underside 7 of the housing 1 there is formed at each end a magazine insert, 8 and 8 ', respectively, which aligns with a fork spring contact, 6c and 6d, respectively. Here, the magazine guide, 8 and 8 ', respectively, consists of a pin 8a and a rod 8b, which may be connected to a contact knife guide 4 associated with connecting rod 4a, whereby

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4 der opnås en endnu bedre føring af magasinet i tilslutningslisten.4 provides an even better guide to the magazine in the connection list.

Inden for rammerne af opfindelsen er det ifølge fig. 3 særlig vigtigt, at huset 1 er udført todelt, 5 således at det består af en underdel 1a og en overdel 1b.Within the scope of the invention, according to FIG. 3 is particularly important that the housing 1 is made in two parts, 5 so that it consists of a lower part 1a and a upper part 1b.

Overdelen 1b kan forbindes med underdelen 1a gennem indgrebsorganer, henholdsvis 9a og 9b, inde i denne.The upper part 1b can be connected to the lower part 1a through engagement means 9a and 9b, respectively, within it.

10 Indgrebsorganerne 9a og 9b er fortrinsvis ud formet som på begge under- og overdelens, henholdsvis 1a og 1b's, sidevægge i længderetningen gående snaplåse, henholdsvis 10 og 10', jf. fig. 3.10 The engagement means 9a and 9b are preferably shaped as snap locks longitudinally extending on both the lower and upper parts of the lower and upper parts, 1a and 1b, respectively, cf. FIG. Third

Fig. 1 og 3 viser, at huset 1's underdel 1a 15 er udformet som et bæger med en bunddel 11, sidevægge 12 og 12' og endevægge 13 og 13', på hvis yderkanter der er udformet smalle stag, henholdsvis 13a, 13b og 13*a, 13'b, jf. fig. 2. Disse stag skaffer afstand mellem endevæggene 13 og 15, henholdsvis 20 13' og 15r, hvorved der dannes mellemrum, som jord skinnen 6's ombøjede flader, henholdsvis 6a og 6b, kan stikkes igennem og føres i.FIG. 1 and 3 show that the bottom part 1a 15 of the housing 1 is formed as a cup with a bottom part 11, side walls 12 and 12 'and end walls 13 and 13', on whose outer edges are formed narrow bars, 13a, 13b and 13 * a respectively. , 13'b, cf. 2. These rods provide spacing between the end walls 13 and 15, 20 13 'and 15r, respectively, thereby creating spaces through which the curved surfaces of the ground rail 6, 6a and 6b, respectively, can be pierced and inserted.

Huset 1's overdel 1b er udformet som en opefter og nedefter åben, rasteragtig kasse, idet der mel-25 lem dennes sidevægge 14 og 141 og parallelt med dens endevægge, henholdsvis 15 og 151, findes et antal indre tværvægge 16, 16' ..., der i midten er forbundet indbyrdes gennem et antal på langs gående længdevægge 17, 17* ...The upper part 1b of the housing 1 is formed as an upwardly and downwardly open, raster-like box, there being between its side walls 14 and 141 and parallel to its end walls, 15 and 151 respectively, a number of inner transverse walls 16, 16 '... connected in the middle by a number of longitudinal longitudinal walls 17, 17 * ...

30 Længdevæggene 17, 17' ... er på undersiden forkortet et stykke, som svarer til kontaktknivene 31 s tykkelse, med henblik på hver at fastholde to af de løst isatte kontakter 2 og 2' eller kontaktknive 3 og 3' i deres arbejdsstilling, jf. fig. 3.The longitudinal walls 17, 17 '... are shortened on the underside a piece corresponding to the thickness of the contact blades 31, in order to each hold two of the loosely inserted contacts 2 and 2' or contact blades 3 and 3 'in their working position. cf. Third

35 I fig. 3 er det vist, at længdevæggene 17, 17* har en yderligere udsparing 18, hvori der til forlængelse af krybestrømvejene findes en ribbe 19.35 In FIG. 3, it is shown that the longitudinal walls 17, 17 * have an additional recess 18 in which a rib 19 is provided to extend the creep current paths.

Claims

25 This measure enables a paired arrangement of the crown contacts, 2 and 2 ', respectively, cf. 3, and their contact blades, 3 and 3 ', respectively, whereby only one and the same embodiment is required for these two elements. 30

1. Surge arrester device for connection strips used in the telecommunications technique, which device is designed as a plug-type housing (1) of insulating material which accommodates a number of adjacent arrester conductors, in which the housing arresters are held by crown contacts (2,5). on both sides, where the contacts (5) on the ground side are fixed DK 151994B to a common rail (6) and the contacts (2) on the plant side are connected electrically and mechanically to a plug connection Ice connector (3), characterized in that they the housing (1) upwardly, lower crown contacts (2) 5 carries downwardly extending contact knives (3) held longitudinally and in the median plane of the housing, on the outside of this formed and projecting guides (4) protruding from the underside (7) of the housing (1); the downwardly extending upper crown contacts (5) are secured to a metallic earth rail (6) having at each end a bent surface (6a, 6b) on which a fork spring contact (6c, 6d) is formed, that on each underside (7) of the housing (1) there is formed at each end a magazine insert (8,8 ') which aligns with the fork spring contact (6c, 6d), that the housing (1) consists of two parts, a lower part ( 1a) and a top part (1b), and that the top part (1b) can be connected to the bottom part (1a) through engagement means (9a, 9b) within it.

2. Device according to claim 1, characterized in that the engagement means (9a, 9b) are formed as snap locks (10, 10 ') on both sides of the housing longitudinally.

Device according to claims 1 and 2, characterized in that the lower part (1a) of the housing (1) is formed as a cup with a bottom part (11), side walls (12,12 ') 25 and end walls (13,13'). ), on whose outer edges are formed narrow bars (13a, 13b, 13'a, 13'b).

Device according to claim 3, characterized in that the upper part (1b) of the housing (1) is formed as an upward and downwardly open, raster-like box, having between its side walls (14, 14 ') and parallel to its end walls (15). , 15 ') there are a plurality of inner transverse walls (16,16') connected in the middle through a number of longitudinal longitudinal walls (17,17 ').

Device according to claims 1-4, characterized in that the longitudinal walls (17,17 '..) on the underside are shortened a piece which corresponds to the thickness of the contact blades (3), for each holding two DK 151994. B of the loosely inserted contacts (2.2 *) or contact blades (3.3 ') in their working position.

Device according to claims 1-5, characterized in that the longitudinal walls (17, 17 ') have a further recess (18) in which a rib (19) is provided to extend the cross-flow paths.

Device according to claims 1-6, characterized in that the side walls (14, 14 ') of the upper part (1b) of the housing (1) have recesses (20, 10 20' ..) connected to the conductors.

Device according to claims 1 and 3, characterized in that the bottom plate (11) of the lower part (1a) of the housing (1) under each lower crown contact (2,2 ') has a through bore (21).

Device according to claim 1, characterized in that the side stiffening surfaces (6e, 6f) of the ground rail (6) in the vicinity of each of the bent surfaces (6a, 6b) have a recess (6g, 6h) for receiving a screwdriver or a screwdriver. similar tools for removing the ground rail (6) from the housing (1).

Device according to claims 1 and 5, characterized in that the lower crown contact (2) is connected to the contact knife (3) through a rod (2a) which extends tangentially from the base of the crown contact (2) to the side 25.