DE709688C - Delayed response fuse - Google Patents

Delayed response fuse

Info

Publication number
DE709688C
DE709688C DEL95654D DEL0095654D DE709688C DE 709688 C DE709688 C DE 709688C DE L95654 D DEL95654 D DE L95654D DE L0095654 D DEL0095654 D DE L0095654D DE 709688 C DE709688 C DE 709688C
Authority
DE
Germany
Prior art keywords
delayed response
fuse
response fuse
penetrates
fusible
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
DEL95654D
Other languages
German (de)
Inventor
Dipl-Ing Clemens Wehrle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AEG AG
Original Assignee
AEG AG
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 AEG AG filed Critical AEG AG
Priority to DEL95654D priority Critical patent/DE709688C/en
Application granted granted Critical
Publication of DE709688C publication Critical patent/DE709688C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02Details
    • H01H85/04Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H01H85/05Component parts thereof
    • H01H85/055Fusible members
    • H01H85/06Fusible members characterised by the fusible material

Description

Verzögert ansprechen ce; Schmelzsicherung I@: ist bLha:ult, yerz@I );zcrt cln@l@rcrliell@le SchLnel-r_sicllerun@czl, sngrnanntc träge Sich@- rungen. dadurch#lierzustellen, <1a13 die Belast- barkeit des iil)er(linlensionierten SchinelzIei- ters durch «'iirille..tatittil-. I_e@@ierun@@.aül@lung oder durch chemische E1nw1`rlmilg heral)gC- -,Ctzt wird. Die 1@ffllltlttn," hezleht ,icll auf solche trä"-e Sicherungen, bei denen durch Anbrin-'unt; elies _-@u ftragsst@-@ftes allf deln SclI111elzleltcr eine Warnlestauung erzielt wird, die "reilzsti-o1Ill7eral,setzeild wirkt. l;rhn(iungsgen 1ä1.1 sind die Scliinelzleitur stellenweise mit einem _\tiftragsstoft in ,sol- cher Weise versehen. (Iaß der bei Temperatur- erllüllung (iiiililflüssig wera,nnde Auftragsstoff in die Zwlschenr:innlv des itln gehenden körill- Iren 1'tllliilittels eindringt, so daß an der Auf- einstellen.-lit w-:irnie_ staffelnd und damit grellzstrol7llleral)s:Izell(1 w-i rken. 111 der Zeichninlg ist eilt _@l1,tI1h1"t1I7g,11e1- sIli(:1 (fier Erfindung in den Aüb. i und = dar- gestellt. A11. i zaigt einen Längsschnitt durch eine Patrone, wobei der _@tiftrags,toff ir :111t den] Schnlelzlelter b Inn ursprünglichen Lustand vorhanden ist. Nach A11. 2 ist der Auftragsstoff a. geschmolzen, an (lein Schmelz- leiterb entlang geflossen und il) die Zwischcn- rittnne des körnigen Ftllltnlttels c eingedrun- gen, wobei an der Auftragsstelle ein Hohl- rauen Il entstan(len ist. An dieser Stelle des Schmelzleiters findet nun fast Leine Wärine- ableitung statt, so da13 hier eine Wärmest;tu- ung und eine Cherlastung des Scllillelzleiters Und. damit die erstrebte Herabsetzung des Grenzstromes des Schmelzleiters eintritt. An (lei- _luftl-:Igsstelk und @In deni Schmelzleiter umlang wird Glas I#iilliuittel durch die flüssige Auftragslnasse zusanlillengeklebt, so (laß (las Vüllinittel nicht iiticlli'Lit,clieii kanii. - Vin geeigileter Stoff für den _'\ttfti-ag sind z. B. die verschiedenen Salze. Es 1cünneli alle Stoffe zur Verwendunggelangen, die bei einer 1>estiininten 'l'cilipei"atur dünnflüssig werden und <las hüllinittel a11 (len Berührungsstellen zusammenkleben. 1)er Auftragsstoff kann clieinisch inaktiv s#-#iil, so) (laß keine Verände- rung flus Sc11me1zleiterlluerschuittes erfolgt: er ]sann aber auch chemisch aktiv sein, so lall <1Lll.ici- der @@ irmestauung gegebenenfalls noch zusätzlich eine Verringerung des Srhmelzleiterlluerschnittes eintritt. Gegenüber den bekannten =\nordnungen zur Herstellung einer iil>erstronlträgen Sicherung hat die Er- findung den Vorteil, daß eine genlaue Dosie- rung der Auftragsmenge nicht erforderlich ist. Trotzdem wird eine nur geringe Streu- ung (fier Abschaltzeit=n erreicht, und zwar zu- folge der genauen Schmelzpunkte der Salze. Delayed response ce; Fuse I @: is bLha: ult, yerz @ I ); zcrt cln @ l @ rcrliell @ le SchLnel-r_sicllerun @ czl, sngrnanntc sluggish @ - struggles. thereby # lier it, <1a13 the load availability of the iil) er (inlated Schinelzei- ters by «'iirille..tatittil-. I_e @@ ierun @@. Aül @ lung or by chemical E1nw1`rlmilg heral) gC- -, Ctzt will. The 1 @ ffllltlttn, "hezleht, icll on such weary fuses, where through Attach-'unt; elies _- @ u ftragsst @ - @ ftes allf deln In addition, a warning jam was achieved is, the "reilzsti-o1Ill7eral, setzeild acts. l; rhn (iungsgen 1-1.1 are the Scliinelzleitur sometimes with a _ \ tiftragsstoft in, so- provided in a way. (Let the temperature fulfillment in the middle: innlv of the itln going körill- Irren penetrates by means, so that at the set.-lit w-: irnie_ staggering and thus grellzstrol7llleral) s: Izell (1 works. 111 the drawing is urgent _ @ l1, tI1h1 "t1I7g, 11e1- sIli (: 1 (for invention in exercises i and = dar- posed. A11. i shows a longitudinal section by a cartridge, where the _ @ tiftrags, toff ir : 111t the] Schnlelzlelter b inn original Lustand is present. After A11. 2 is the Application material a. melted, on (lein melting flowed along the ladder and il) the intermediate rittnne the granular Ftllltnlttels c eingedrun- gen, whereby at the place of application a hollow rough Il has arisen. At this point the Fusible conductor now almost finds Leine Wärine- dissipation takes place, so that there is a heat ung and a strain on the scalp And. thus the desired lowering of the Limit current of the fuse element occurs. At (lei- _luftl-: Igsstelk and @In deni fusible conductor Glass is filled with liquid by the liquid Application glue glued together, so (let (read Vüllinittel not iiticlli'Lit, clieii kanii. - Vin suitable substance for the _ '\ ttfti-ag are z. B. the various salts. It 1cünneli all Substances for use get that in a 1> estiininten 'l'cilipei "atur become thin and <read hüllinittel a11 (len points of contact glue together. 1) he can apply material cliinically inactive s # - # iil, so) (do not allow any changes The flow rate of the metal lead lump takes place: he] thought to be chemically active, like that lall <1Lll.ici- der @@ irmestauung if necessary additionally a reduction of the Srhmelzleiterlluschnittes occurs. Opposite to the well-known instructions for production an iil> successful backup has the finding the advantage that precise dosing The application quantity is not required is. Nevertheless, only a small amount of scatter ung (fier switch-off time = n reached, namely to- follow the exact melting points of the salts.

Claims (1)

1'nTEINTA\S1#RUCil: Verzögert ansprechende Schmelzsiche- rung, dadurch gekennzeichnet, (laß die Schnlelzleiter stellenweise finit einem Auf- tragsstoff (er) in solcher Weise versehen sind, (laß der bei Tcinperaturerhöhung dünnflüssig werdende Auftragsstoff hier- bei in die Zwischenräume des umgebenden körnigen Füllmittels (c) eindringt, so daß ;In der _luftra@;,stelle flolill':itinle (et) ent- stehen, die wärillestauend und damit
grenzstromherabsetzend wirken.
1'nTEINTA \ S1 # RUCil: Delayed responding fusible tion, characterized by (let the Fast ladder in places finite carrying material (s) provided in such a way are, (leave it at temperature increase thinly fluid application material here- at in the interstices of the surrounding granular filler (c) penetrates so that ; In the _luftra @ ;, put flolill ': itinle (et) stand, that heat up and with it
have a limiting current-reducing effect.
DEL95654D 1938-09-24 1938-09-24 Delayed response fuse Expired DE709688C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL95654D DE709688C (en) 1938-09-24 1938-09-24 Delayed response fuse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL95654D DE709688C (en) 1938-09-24 1938-09-24 Delayed response fuse

Publications (1)

Publication Number Publication Date
DE709688C true DE709688C (en) 1941-08-23

Family

ID=7288146

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL95654D Expired DE709688C (en) 1938-09-24 1938-09-24 Delayed response fuse

Country Status (1)

Country Link
DE (1) DE709688C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0560908A1 (en) * 1990-12-07 1993-09-22 Avx Corporation Binary fuse device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0560908A1 (en) * 1990-12-07 1993-09-22 Avx Corporation Binary fuse device
EP0560908A4 (en) * 1990-12-07 1994-01-26 Avx Corporation

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