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DK154593B - MELT Fuse Holder With Switch - Google Patents

MELT Fuse Holder With Switch Download PDF

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Publication number
DK154593B
DK154593B DK182477AA DK182477A DK154593B DK 154593 B DK154593 B DK 154593B DK 182477A A DK182477A A DK 182477AA DK 182477 A DK182477 A DK 182477A DK 154593 B DK154593 B DK 154593B
Authority
DK
Denmark
Prior art keywords
switch
fuse
contact
arm
fuse holder
Prior art date
Application number
DK182477AA
Other languages
Danish (da)
Other versions
DK154593C (en
DK182477A (en
Inventor
Hajo Lindner
Original Assignee
Lindner Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lindner Gmbh filed Critical Lindner Gmbh
Publication of DK182477A publication Critical patent/DK182477A/en
Publication of DK154593B publication Critical patent/DK154593B/en
Application granted granted Critical
Publication of DK154593C publication Critical patent/DK154593C/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/10—Adaptation for built-in fuses
    • H01H9/104—Adaptation for built-in fuses with interlocking mechanism between switch and fuse
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts

Landscapes

  • Fuses (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Manufacture Of Switches (AREA)
  • Push-Button Switches (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)

Description

iin

DK 154593 BDK 154593 B

oisland

Opfindelsen angår en sikringsholder med indbygget afbryder af den i krav l's indledning angivne art.The invention relates to a fuse holder with a built-in switch of the kind specified in the preamble of claim 1.

Når der ved sikringsholdere af denne art skal udskiftes en defekt smeltesikring, vil man normalt først 5 betjene afbryderen for derved at sikre sig imod eventuelle farlige spændinger på kontaktorganerne under udskiftningen. Også ved udførelse af mindre reparationsarbej.der i den elektriske installation vil man også foretage en sådan afbrydelse, og med henblik på yderligere sikkerhed vil man også skrue 10 den intakte smeltesikring et stykke ud af fatningen eller fjerne den helt.When a defective melt fuse is to be replaced by fuse holders of this kind, the switch will normally first operate the switch to thereby protect against any dangerous voltages on the contact members during the replacement. Also, when performing minor repair work in the electrical installation, such an interruption will also be made, and for additional security, the intact melt fuse 10 will also be unscrewed or removed completely.

Det er kendt ved sikringsholdere af den i krav l's indledning angivne art at udstyre afbryderens betjeningshåndtag med en ansats, som i indkoblingsstillingen dækker 15 over smeltesikringens holdeorgan. For at kunne udtage smeltesikringen er det derfor nødvendigt at sætte afbryderen i afbrydestillingen. Der foreligger således en vis tvangsmæssighed, idet man først skal afbryde, og dernæst udskifte sikringen. Dette er imidlertid ikke tilfældet, når smelte-20 sikringen skal indsættes. Da smeltesikringer også bliver udskiftet af uøvede personer, foreligger der en risiko for at smeltesikringen kun føres så langt ind, at der lige netop opnås en elektrisk kontakt med bundkontakten. I så fald kan der efter indkoblingen på grund af den dårlige 25 kontakt mellem smeltesikringen og bundkontakten og/eller holdeorganets gevindfatning optræde varme eller glødende steder eller forhøjelse af kontaktmodstanden og lignende fænomener,'som forringer sikringsholderens funktionsdygtighed, pg i ekstreme tilfælde kan ødelægge den. Det kan også ske, 30 at når smeltesikringen ikke er taget helt ud, kan en tredje person uforvarende igen indkoble afbryderen, så at den elektriske installation, som var gjort spændingsløs f.eks. med henblik på et reparationsarbejde, igen står under spænding.It is known in the case of fuse holders of the kind specified in the preamble of claim 1 to equip the switch handle of the switch with a guide which in the switch-on position covers 15 over the fuse retaining means. Therefore, in order to take out the fuse, it is necessary to put the switch in the switch position. Thus, there is some compulsion, with the first having to be interrupted and then the fuse replaced. However, this is not the case when the melt fuse is to be inserted. Since melt fuses are also replaced by unskilled persons, there is a risk that the fuse will only be inserted so far that an electrical contact with the bottom contact is just achieved. In that case, after switching on due to the poor contact between the melt fuse and the bottom contact and / or the threaded member of the retaining member, hot or glowing places or increased contact resistance and similar phenomena which impair the function of the fuse holder and in extreme cases can destroy it. It may also happen that when the fuse is not completely removed, a third person may inadvertently reconnect the circuit breaker, so that the electrical installation, which was rendered powerless e.g. for the purpose of a repair work, is again under tension.

35 Fra US-patentskrift nr. 3.009.036 kendes en flerpolet afbryder med indbyggede sikringsholdere for knivkontakt-smelte-35 US Patent No. 3,009,036 discloses a multi-pole circuit breaker with built-in fuse holders for knife contact melting

OISLAND

22

DK 154593 BDK 154593 B

sikringer. Denne afbryder er blokeret i afbrydestillingen dersom en eller flere smeltesikringer mangler eller er brændt over. Den således kendte afbryder indeholder en ret kompliceret mekanisme, der gør den uegnet til økonomisk : 5 masseproduktion af den art sikringsholdere, som opfindelsen beskæftiger sig med, men på den anden side repræsenterer den et princip - nemlig den nys nævnte blokeringsfunktion -som ville kunne anvendes til at undgå de ovenfor omtalte risici og ulemper, idet det dog ville være nødvendigt at 10 indføre kontakttrykket som kriterium for ophævelse af blokeringen, da der ved anvendelse af knivkontakt-smeltesikringer ikke er problemer med kontakttrykket.fuses. This switch is blocked in the switching position if one or more fuses are missing or burnt over. The circuit breaker thus known contains a rather complicated mechanism which makes it unsuitable for economy: mass production of the kind of fuse holders with which the invention deals, but on the other hand it represents a principle - namely the aforementioned blocking function - which could be used to avoid the above-mentioned risks and disadvantages, however, it would be necessary to introduce the contact pressure as a criterion for unblocking, since using the contact-contact melting fuses, there are no problems with the contact pressure.

Det er på baggrund heraf opfindelsens formål, under udnyttelse af det således kendte princip, at anvise ud-15 formningen af en sikringsholder af den indledningsvis angivne art, som har en højere driftssikkerhed end de kendte sikringsholdere, idet den først kan indkobles efter at der er opnået et tilstrækkeligt kontakttryk mellem sikringsholderens kontaktorganer og smeltesikringens endekontaktkapper.In view of the above, it is the object of the invention, utilizing the principle thus known, to provide the design of a fuse holder of the type indicated initially, which has a higher reliability than the known fuse holders, since it can only be switched on after obtained a sufficient contact pressure between the fuse holder contact means and the end fuse end caps of the fuse holder.

20 Dette formål opnås ved en sikringsholder, som ifølge opfindelsen er ejendommelig ved de i krav l's kendetegnende del angivne træk.This object is achieved by a fuse holder which according to the invention is characterized by the features of claim 1.

Ved denne udformning opnås ved særdeles enklé midler, idet der kun skal foretages ændringer ved afbryderar-25 men og bundkontakten, som begge allerede foreligger, og tilføjes en fjeder og en spærrearm af enkel udformning, at det, når smeltesikringen er udtaget eller skruet et stykke tilbage i gevindfatningen, ikke er muligt uforvarende at føre afbryderen, som tidligere 30 er blevet ført til sin afbrydestilling, tilbage til indkoblingsstillingen. Herved er det sikret, at den foreliggende driftstilstand ikke kan ændres i farebrin-gende retning. Først når holdeorganet er skruet helt ind og der derved er opnået et tilstrækkeligt kontakttryk mellem 35 smeltesikringen og dennes modkontaktorganer, ophæves blokerings funktionen.This design is achieved by very simple means, since only changes have to be made to the switch arm and the bottom contact, both of which already exist, and a spring and a locking arm of simple design are added that when the melt fuse is removed or unscrewed back into the threaded frame, it is not possible to inadvertently return the switch, which has previously been brought to its switching position, back to the switch-on position. In this way, it is ensured that the current operating state cannot be changed in a hazardous direction. Only when the retaining means is fully screwed in and thereby a sufficient contact pressure is obtained between the fuse and its counter-contact means, the blocking function is revoked.

3 DK 154593 B3 DK 154593 B

oisland

En udførelsesform for sikringsholderen ifølge opfindelsen er ejendommelig ved den i krav 2 angivne udformning. Samvirket mellem membranen og spærrearmen frembringer et hørbart signal, der udgør tegn til den betjenende 5 person, om at der ved indsætningen af smeltesikringen er opnået et tilstrækkeligt kontakttryk, så at afbryderen kan føres til den ønskede driftsstilling.An embodiment of the fuse holder according to the invention is characterized by the configuration of claim 2. The interaction between the diaphragm and the locking arm produces an audible signal that signals to the operating person that, upon insertion of the melt fuse, sufficient contact pressure is achieved so that the switch can be brought to the desired operating position.

Opfindelsen skal i det følgende forklares nærmere 10 under henvisning til det på tegningen viste udførelseseksempel på en sikringsholder ifølge opfindelsen, idet fig. 1 er et snit gennem sikringsholderen med indsat sikring og med afbryderen i indkoblingsstillingen, og fig. 2 er et til fig. 1 svarende snit, men uden 15 sikring og dennes holdeindretning, og med afbryderen i udkoblingsstillingen.BRIEF DESCRIPTION OF THE DRAWINGS The invention will be explained in more detail below with reference to the embodiment of a fuse holder according to the invention shown in the drawing. 1 is a section through the fuse holder with the fuse inserted and with the switch in the switch-on position; and FIG. 2 is a view of FIG. 1 corresponding section, but without 15 fuse and its holding device, and with the switch in the switch-off position.

Sikringsholderen består af to identiske hushalvdele 1, hvoraf den forreste ikke er vist på tegningen, og som er forbundet med hinanden ved hjælp af nitter 2. Tilslutnings-20 organerne udgøres af klemmer 3, 3' på gevindfatningen 5 henholdsvis bundkontakten 4. Strømtilførslen over bundkontakten 4 kan afbrydes ved hjælp af afbryderen 6, f.eks. men henblik på udskiftning af en defekt smeltesikring. Ved afskruning af det til smeltesikringen 8 hørende holdedæksel 7 bevæger 25 bundkontakten 4 sig under påvirkning af en trykfjeder 9 opad, indtil den kommer til anlæg imod en anslagsflade 10. Herved svinges en på bundkontakten 4 anbragt spærrearm 11 så langt udad, at dens endedel 13, der tjener til spærring af afbryderarmen 12, kommer til at ligge inden for svingeradien 30 for en på afbryderarmen 12, anbragt spærrenæse 14, så at afbryderen 6 ikke længere kan indkobles. Først ved ind-skruningen af det med en smeltesikring 8 forsynet holdedæksel 7, hvori smeltesikringen 8 er fastholdt ved hjælp af en holdefjeder 18, trykkes bundkontakten 14 nedad af den nedre 35 kontaktkappe 15 på smeltesikringen 8, så at spærrearmen 11 bevæges indad og dens endedel 13 igen kommer uden férThe fuse holder consists of two identical housing parts 1, the front of which is not shown in the drawing and which are connected to each other by means of rivets 2. The connecting means are constituted by terminals 3, 3 'on the threaded socket 5 and the bottom contact 4. The power supply over the bottom contact 4 can be switched off by means of switch 6, e.g. but for the purpose of replacing a defective fuse. By unscrewing the holding cap 7 of the melting fuse 8, the bottom contact 4 moves under the influence of a compression spring 9 until it comes into contact with an abutment surface 10. A locking arm 11 placed on the bottom contact 4 is pivoted so far outward that its end part 13 which serves to block the switch arm 12 will be within the pivot radius 30 of a locking nozzle 14 located on the switch arm 12 so that the switch 6 can no longer be engaged. First, by screwing in the retaining cap 7 provided with a fuse 8, wherein the fuse 8 is retained by means of a holding spring 18, the bottom contact 14 is pressed downwardly by the lower 35 contact cap 15 of the fuse 8 so that the locking arm 11 is moved inward and its end part 13 again comes without a hitch

DK 154593 BDK 154593 B

44

OISLAND

svingeområdet for spærrenæsen 14 afbryderarmen 12. Fra dette øjeblik kan afbryderen 6 .'igen indkobles::the swinging area of the locking nozzle 14 switch arm 12. From this moment the switch 6 can be switched on:

For at sikringsholderen skal virke efter hensigten, er et tilstrækkeligt kontakttryk mellem endekontaktkapperne 5 15, 16 og de dermed samvirkende kontaktorganer af den største betydning. For at den person, der betjener sikringsholderen, kan konstatere opnåelsen af denne driftstilstand, frembringes et akustisk signal ved hjælp af en membran 17, som er indrettet til at påvirkes af endedelen 13 på låsearmen 10 11. Dette signal kan høres både ved udskruningen og ved indskruningen af smeltesikringen 8, og tjener i sidstnævnte tilfælde som signal om at afbryderen kan betjenes.In order for the fuse holder to function as intended, a sufficient contact pressure between the end contact sheaths 5 15, 16 and the thus cooperating contact means is of the greatest importance. In order for the person operating the fuse holder to ascertain the attainment of this operating state, an acoustic signal is produced by means of a diaphragm 17 arranged to be affected by the end portion 13 of the locking arm 10 11. This signal can be heard both at the unscrew and at the screw-in of the melt fuse 8, and in the latter case serves as a signal that the switch can be operated.

15 20 25 1 3515 20 25 1 35

Claims (2)

1. Sikringsholder med indbygget afbryder (6) for smeltesikringer (8) med endekontaktkapper (15,16) og af den art, der omfatter 5 a) en strømtilgangstilslutning (31), b) en afbryder (6), hvis indgangsside er forbundet med strømtilgangstilslutningen (3'), c) en bundkontakt (4), der er indrettet til at samvirke med en smeltesikrings (8) forreste endekontaktkappe 10 (15), og som er forbundet med afbryderens (6) udgangsside, d) en gevindfatning (5), der er forbundet med en strømafgangstilslutning (3), e) et udtageligt til indskruning i gevindfatningen (5) indrettet sikringsholdeorgan (7), som i sin korrekt 15 indskruede stilling er indrettet til dels atholde smeltesikringens (8) forreste endekontaktkappe (15) i elektrisk ledende berøring med bundkontakten (4), dels at danne elektrisk forbindelse mellem smeltesikringens (8) bageste endekontaktkappe (16) og gevindfatningen (5) samt 20 f) en med afbryderen (6) mekanisk koblet afbryderarm (12), der er svingeligt lejret og bevægelig mellem to stillinger, nemlig en indkoblingsstilling (fig. 1), hvori den bevirker at afbryderen (6) er sluttet og hvori den eventuelt spærrer mekanisk for adgang til sikringsholde- 25 organet (7), og en afbrydestilling (fig. 2), hvori den holder afbryderen (6) i afbrudt stilling, kendetegnet ved g) at der på afbryderarmen (12) er anbragt eller udformet en spærrenæse (14), hvis indgrebsside vender i 30 den retning, i hvilken afbryderarmen (12) bevæges fra afbryde- til indkoblingsstillingen, og h) at bundkontakten (4) er svingeligt lejret og ved hjælp af en fjeder (9) er forspændt imod smeltesikringens (8) indføringsretning og endvidere mekanisk forbundet med en 35 spærrearm (11), som, når bundkontakten (4) ikke er trykket helt i bund imod fjederens (9) kraft, griber ind i spærrenæsens (14) bevægelsesbane. O DK 154593 B1. A fuse holder with a built-in switch (6) for fuses (8) with end contact caps (15, 16) and of the type comprising 5 a) a power supply connection (31), b) a switch (6) whose input side is connected to (c) a bottom contact (4) adapted to cooperate with the front end contact 10 (15) of a fuse (8) and connected to the output side of the switch (6); (d) a threaded mount (5). (e) a removable locking means (7) arranged for screwing into the threaded socket (5), which in its correctly screwed-in position is arranged partly to hold the front end contact (15) of the fuse (8). in electrically conductive contact with the bottom contact (4), and partly to form an electrical connection between the rear end contact cap (16) of the fuse (8) and the threaded socket (5) and 20 (f) a pivotally switched switch (12) with the switch (6) camped and moving flour snap two positions, namely a switch-on position (fig. 1) in which it causes the switch (6) to be closed and in which it optionally blocks the mechanical access to the fuse holder (7) and a switching position (Fig. 2) in which it holds the switch (6) in the switched off position; characterized in (g) that a locking nose (14) is arranged or formed on the switch arm (12), the engagement side of which faces in the direction in which the switch arm (12) is moved from the switch to the switch-on position, and h) the bottom switch (4) is pivotally mounted and, by means of a spring (9), is biased against the direction of insertion of the fuse (8) and, furthermore, mechanically connected to a locking arm (11) which, when the bottom contact (4) is not fully pressed against the spring (9) force, interferes with the path of movement of the locking nose (14). O DK 154593 B 2. Sikringsholder ifølge krav 1, kendetegnet ved, at spærrearmen (11) er indrettet til at samvirke med en membran (17), som afgiver et hørligt signal, når spærrearmen (11) bevæges bort fra den stilling, hvori 5 den griber ind i spærrenæsens (14) bevægelsesbane. 10 15 20 25 30 35Fuse holder according to claim 1, characterized in that the locking arm (11) is arranged to cooperate with a diaphragm (17) which gives an audible signal as the locking arm (11) moves away from the position in which it engages in the trajectory of the latch (14). 10 15 20 25 30 35
DK182477A 1976-04-27 1977-04-26 MELT Fuse Holder With Switch DK154593C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2618360A DE2618360C3 (en) 1976-04-27 1976-04-27 Fuse base with built-in switch
DE2618360 1976-04-27

Publications (3)

Publication Number Publication Date
DK182477A DK182477A (en) 1977-10-28
DK154593B true DK154593B (en) 1988-11-28
DK154593C DK154593C (en) 1989-04-17

Family

ID=5976360

Family Applications (1)

Application Number Title Priority Date Filing Date
DK182477A DK154593C (en) 1976-04-27 1977-04-26 MELT Fuse Holder With Switch

Country Status (17)

Country Link
AT (1) AT346413B (en)
BE (1) BE851921A (en)
CH (1) CH612294A5 (en)
DD (1) DD129505A5 (en)
DE (1) DE2618360C3 (en)
DK (1) DK154593C (en)
ES (1) ES458209A1 (en)
FI (1) FI64478C (en)
FR (1) FR2349946A1 (en)
GB (1) GB1527564A (en)
GR (1) GR65641B (en)
IN (1) IN148590B (en)
IT (1) IT1078450B (en)
NL (1) NL183372C (en)
NO (1) NO145036C (en)
SE (1) SE408105B (en)
YU (1) YU109077A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2452776A1 (en) * 1979-03-30 1980-10-24 Hager Electro Thermal fuse switch assembly - has post on operational element cooperating with projection on fuse cap to turn switch off when fuse is inserted
DE2915170C2 (en) * 1979-04-12 1982-06-09 Siemens AG, 1000 Berlin und 8000 München Low voltage load switch with fuse
DE2946874A1 (en) * 1979-11-21 1981-05-27 Christian Geyer GmbH & Co, 8500 Nürnberg Disconnector with thermal melt-type fuse - has fuse holder designed to prevent manipulation reducing contact pressure
DE3027561A1 (en) * 1980-07-21 1982-02-25 Siemens AG, 1000 Berlin und 8000 München LOW VOLTAGE SWITCH WITH FUSE
DE3119181C1 (en) * 1981-05-14 1982-11-11 Lindner Gmbh, Fabrik Elektrischer Lampen Und Apparate, 8600 Bamberg Fuse base for a fuse link
DE3406815A1 (en) * 1984-02-24 1985-09-12 Klaus 8600 Bamberg Bruchmann SWITCH LOCKING UNIT
EP0157289B1 (en) * 1984-04-04 1989-02-01 Lindner GmbH Fabrik elektrischer Lampen und Apparate Built-in fuse socket for cut-out fuse
DE3445285C1 (en) * 1984-12-12 1986-04-30 Lindner Gmbh, Fabrik Elektrischer Lampen Und Apparate, 8600 Bamberg Safety switch
DK160115C (en) * 1985-04-17 1991-07-01 Knudsen Nordisk Elect SAFETY DEVICE FOR POWER SWITCHES
SI9700256A (en) * 1997-10-02 1999-06-30 Eti Elektroelement D.D. Electric device switch
DE10115777A1 (en) * 2001-03-29 2003-05-15 Mueller Jean Ohg Elektrotech Multi-pole switching device for use on busbar systems

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3009036A (en) * 1956-08-24 1961-11-14 Westinghouse Electric Corp Circuit interrupter

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB374637A (en) * 1931-06-18 1932-06-16 Herbert Bagshaw Prentice Plug-in connection for electric switches
NL85158C (en) * 1954-01-18
GB879669A (en) * 1958-06-07 1961-10-11 Bassani Spa Improvements in or relating to electric switches
FR2191234B1 (en) * 1972-06-28 1976-08-06 Faeam
FR2202361B1 (en) * 1972-10-10 1976-01-30 Unelec Fr
IT988814B (en) * 1973-05-30 1975-04-30 Bassani Spa DEVICE FOR FIXING CARTRIDGE FUSES IN FUSE HOLDERS
DE2334595B1 (en) * 1973-07-07 1974-04-25 Lindner Gmbh Fabrik Elek Scher Fuse base with a switch for fusible links
FR2244253A2 (en) * 1973-09-13 1975-04-11 Unelec Fused switch or contact breaker - provides button indication of switch status in integral switch and fuse box

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3009036A (en) * 1956-08-24 1961-11-14 Westinghouse Electric Corp Circuit interrupter

Also Published As

Publication number Publication date
ES458209A1 (en) 1978-02-16
DD129505A5 (en) 1978-01-18
DE2618360C3 (en) 1983-11-03
GR65641B (en) 1980-10-15
NO770762L (en) 1977-10-28
BE851921A (en) 1977-06-16
CH612294A5 (en) 1979-07-13
DK154593C (en) 1989-04-17
NO145036C (en) 1981-12-28
FI64478B (en) 1983-07-29
NL183372C (en) 1988-10-03
FR2349946B1 (en) 1981-06-12
DE2618360B2 (en) 1979-08-09
ATA64077A (en) 1978-03-15
FR2349946A1 (en) 1977-11-25
FI771013A (en) 1977-10-28
IN148590B (en) 1981-04-11
FI64478C (en) 1983-11-10
AT346413B (en) 1978-11-10
SE408105B (en) 1979-05-14
NL7703923A (en) 1977-10-31
DK182477A (en) 1977-10-28
NL183372B (en) 1988-05-02
NO145036B (en) 1981-09-14
IT1078450B (en) 1985-05-08
DE2618360A1 (en) 1977-11-03
GB1527564A (en) 1978-10-04
SE7702789L (en) 1977-10-28
YU109077A (en) 1982-06-30

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