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 Razvojni Center Enem Novi Materiali D.O.O.filedCriticalRazvojni Center Enem Novi Materiali D.O.O.
Priority to SI201400387ApriorityCriticalpatent/SI24871B/en
Priority to PCT/SI2014/000072prioritypatent/WO2016064352A1/en
Priority to ES14835723Tprioritypatent/ES2819289T3/en
Priority to PT148357239Tprioritypatent/PT3210231T/en
Priority to EP14835723.9Aprioritypatent/EP3210231B1/en
Priority to PL14835723Tprioritypatent/PL3210231T3/en
Publication of SI24871ApublicationCriticalpatent/SI24871A/en
Publication of SI24871BpublicationCriticalpatent/SI24871B/en
H01H85/00—Protective 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
H01H85/02—Details
H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
H01H85/041—Fuses, i.e. expendable parts of the protective device, e.g. cartridges characterised by the type
H01H85/044—General constructions or structure of low voltage fuses, i.e. below 1000 V, or of fuses where the applicable voltage is not specified
H01H85/045—General constructions or structure of low voltage fuses, i.e. below 1000 V, or of fuses where the applicable voltage is not specified cartridge type
H01H85/0456—General constructions or structure of low voltage fuses, i.e. below 1000 V, or of fuses where the applicable voltage is not specified cartridge type with knife-blade end contacts
H01H85/00—Protective 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
H01H85/02—Details
H01H85/38—Means for extinguishing or suppressing arc
H01H85/00—Protective 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
H01H85/02—Details
H01H85/38—Means for extinguishing or suppressing arc
H01H2085/383—Means for extinguishing or suppressing arc with insulating stationary parts
H01H85/00—Protective 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
H01H85/02—Details
H01H85/38—Means for extinguishing or suppressing arc
H01H2085/388—Means for extinguishing or suppressing arc using special materials
Landscapes
Fuses
(AREA)
Abstract
Pri električni varovalki, ki je še zlasti predvidena za zaščito enosmernih (DC) električnih tokokrogov, je vsaj v vsakem izmed končnih območij (31, 32) talilnega elementa (3) v notranjosti okrova (1), namreč med vsakokrat pripadajočim nožastim kontaktom (210, 220) in vsakokrat slednjemu najbližjo oslabitvijo (30, 30', 30"), na vsaki izmed vsaksebi obrnjenih dominantnih površin (33, 34) talilnega elementa (3) nanešena vsaj po ena prepreka (51, 51', 51"; 52, 52', 52") za preprečevanje napredovanja električnega obloka, ki je usmerjena v prečni smeri talilnega elementa (3) vzdolž vsake izmed omenjenih dominantnih površin (33, 34) in poteka po celotni širini traku talilnega elementa (3), sestoji pa iz gibkega in vsaj kratkotrajno temperaturno obstojnega gradiva.In the case of an electrical fuse, which is intended in particular to protect direct current (DC) circuits, at least in each of the end regions (31, 32) of the melting element (3) inside the housing (1), namely between the respective blade contact (210). , 220) and each time the closest weakening (30, 30 ', 30 "), at least one obstacle (51, 51', 51" applied to each of the inverted dominant surfaces (33, 34) of the melting element (3); 52 , 52 ', 52 ") to prevent the advancement of an electric arc directed in the transverse direction of the melting element (3) along each of said dominant surfaces (33, 34) and running along the entire width of the strip of the melting element (3), consisting of flexible and at least short-term temperature-resistant material.
Claims (4)
SPREMENJENI PATENTNI ZAHTEVKIAMENDED PATENT APPLICATIONS1. Električna varovalka, obsegajoča cevasto zasnovan okrov (1) iz električno izolativnega materiala, ki je na konceh (11, 12) zaprt s togima pokrovoma (21, 22), od katerih vsak obsega z njim togo povezan nožast kontakt (210, 220) iz električno prevodnega materiala, medtem ko je v notranjosti omenjenega okrova (1) vgrajen kot ploščat trak iz električno prevodnega materiala vnaprej določene električne upornosti zasnovan talilni element (3) vnaprej določene dolžine (L) in debeline, ki je po eni strani v svojih končnih območjih (31, 32) električno povezan z omenjenima nožastima kontaktoma (210, 220) in po drugi strani opremljen z množico vzdolž traku med seboj enakomerno razporejenih in glede na trak v prečni smeri potekajočih oslabitev (30, 30', 30) v obliki perforacij omenjenega traku med obema dominantnima površinama (33, 34) le-tega, pri čemer je vsakokratna oslabitev (30, 30', 30) na voljo kot množica med seboj v prečni smeri traku enakomerno razporejenih skoznjih lukenj (300), tako da je prečni presek talilnega elementa (3) v vsaki izmed omenjenih oslabitev (30, 30', 30) vnaprej določen in manjši od preseka talilnega elementa (3) v preostalih območjih le-tega, obenem pa je notranjost t.j. svetlina omenjenega okrova (1) zapolnjena s sipkim negorljivim sredstvom (4), še zlasti s kremenčevim peskom, s katerim je obdan omenjen talilni element (3), označena s tem, daje vsaj v vsakem izmed končnih območij (31, 32) omenjenega talilnega elementa (3), namreč med vsakokrat pripadajočim nožastim kontaktom (210, 220) in vsakokrat slednjemu najbližjo oslabitvijo (30, 30', 30), na vsaki izmed vsaksebi obrnjenih dominantnih površin (33, 34) talilnega elementa (3) nanešena vsaj po ena prepreka (51, 5Γ, 51; 52, 52’, 52), in s tem, daje vsaj ena prepreka (51, 5 Γ, 51; 52, 52', 52) na voljo med vsaj še dvema nadaljnjima oslabitvama (30, 30', 30) na talilnem elementu (3), pri čemer je vsaka izmed omenjenih preprek v profilu približno polkrožna (51, 51', 51; 52, 52', 52) in sestoji iz gibkega in vsaj kratkotrajno temperaturno obstojnega gradiva, prirejena pa je za preprečevanje napredovanja električnega obloka in usmerjena v prečni smeri talilnega elementa (3) vzdolž vsake izmed omenjenih dominantnih površin (33, 34) ter poteka po celotni širini traku talilnega elementa (3), in pri čemer je vsaka izmed končnih, namreč najbližje nožastima kontaktoma (210, 220) razporejenih preprek (51, 5Γ, 51; 52, 52', 52) od pripadajočega nožastega kontakta (210, 220) oddaljena za vnaprej določeno razdaljo (T), ki znaša približno 15% dolžine (L) talilnega elementa (3).An electrical fuse comprising a tubular housing (1) of electrically insulating material closed at the ends (11, 12) by rigid covers (21, 22), each of which comprises a rigidly connected blade contact (210, 220). ) of electrically conductive material, while inside the said housing (1) is mounted as a flat strip of electrically conductive material of predetermined electrical resistance a melting element (3) of predetermined length (L) and thickness, which is on the one hand in its end areas (31, 32) electrically connected to said blade contacts (210, 220) and on the other hand provided with a plurality of weakly distributed and transversely in the transverse direction of the weakening (30, 30 ', 30) perforations of said strip between the two dominant surfaces (33, 34) thereof, each weakening (30, 30 ', 30) being available as a plurality of evenly spaced through the holes (300) in the transverse direction of the strip, so that a the cross-section of the melting element (3) in each of said weakenings (30, 30 ', 30) is predetermined and smaller than the cross-section of the melting element (3) in the remaining areas thereof, and at the same time the interior, i. the lumen of said housing (1) is filled with a loose non-combustible means (4), in particular quartz sand, which surrounds said melting element (3), characterized in that at least in each of the end regions (31, 32) of said melting point element (3), namely between the respective blade contact (210, 220) and the respective weakening (30, 30 ', 30) of the latter, applied to each of the inverted dominant surfaces (33, 34) of the melting element (3) at least after one barrier (51, 5Γ, 51; 52, 52 ', 52), with at least one barrier (51, 5 Γ, 51; 52, 52', 52) available during at least two further impairments (30 , 30 ', 30) on the melting element (3), each of said barriers in the profile being approximately semicircular (51, 51', 51; 52, 52 ', 52) and consisting of a flexible and at least short-term temperature-resistant material, it is adapted to prevent the advancement of the electric arc and is directed in the transverse direction of the melting element (3) along each of the mentioned dominant surfaces (33, 34) and run along the entire width of the strip of the melting element (3), and each of the end, namely closest to the blade contacts (210, 220) arranged barriers (51, 5Γ, 51); 52, 52 ', 52) spaced from the associated blade contact (210, 220) by a predetermined distance (T) of approximately 15% of the length (L) of the melting element (3).2. Električna varovalka po zahtevku 1, označena s tem, da premer (D) vsakokratne prepreke (51, 5 Γ, 51; 52, 52', 52) znaša 2-6 mm.Electrical fuse according to Claim 1, characterized in that the diameter (D) of the respective barrier (51, 5 Γ, 51; 52, 52 ', 52) is 2-6 mm.3. Električna varovalka po zahtevku 2, označena s tem, da premer (D) vsakokratne prepreke (51, 5Γ, 51; 52, 52', 52) znaša 3-4 mm.Electrical fuse according to Claim 2, characterized in that the diameter (D) of the respective barrier (51, 5Γ, 51; 52, 52 ', 52) is 3-4 mm.4. Električna varovalka po kateremkoli od zahtevkov 1 - 7, označena s tem, da vsakokratna prepreka (51, 5Γ, 51; 52, 52', 52) sestoji iz silikona, ki je vsaj kratkotrajno odporen proti temperaturi najmanj 2000°C.Electrical fuse according to any one of claims 1 - 7, characterized in that the respective barrier (51, 5Γ, 51; 52, 52 ', 52) consists of silicone which is at least short-term resistant to a temperature of at least 2000 ° C.
Copper alloy for electronic/electrical device, copper alloy plastically-worked material for electronic/electrical device, component for electronic/electrical device, terminal, and busbar