SI24871A - Electric fuse - Google Patents
Electric fuse Download PDFInfo
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- SI24871A SI24871A SI201400387A SI201400387A SI24871A SI 24871 A SI24871 A SI 24871A SI 201400387 A SI201400387 A SI 201400387A SI 201400387 A SI201400387 A SI 201400387A SI 24871 A SI24871 A SI 24871A
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- Slovenia
- Prior art keywords
- melting element
- barrier
- strip
- fuse according
- electrical fuse
- Prior art date
Links
- 230000008018 melting Effects 0.000 claims abstract description 44
- 238000002844 melting Methods 0.000 claims abstract description 44
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000010891 electric arc Methods 0.000 claims abstract description 4
- 230000004888 barrier function Effects 0.000 claims description 22
- 230000003313 weakening effect Effects 0.000 claims description 14
- 239000004020 conductor Substances 0.000 claims description 8
- 239000006004 Quartz sand Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 229920001296 polysiloxane Polymers 0.000 claims description 4
- 239000012777 electrically insulating material Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000004870 electrical engineering Methods 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- RREGISFBPQOLTM-UHFFFAOYSA-N alumane;trihydrate Chemical compound O.O.O.[AlH3] RREGISFBPQOLTM-UHFFFAOYSA-N 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- 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 electric fuse, in particular provided for the protection of DC circuits, at least in each of the end regions (31, 32) of the melting element (3) inside the casing (1), namely the corresponding knife contact (210 , At least one obstacle (51, 51 ', 51 ", 52 ", 52 ", 52 ", 220) and in each case the nearest closest attenuation (30, 30', 30 "), at least one obstacle on each of the dominant surfaces (33, 34) of the melting element , 52 ', 52 ") for preventing the advance of the electric arc which is directed in the transverse direction of the melting element (3) along each of said dominant surfaces (33, 34) and extends across the entire width of the melter element band (3) flexible and at least short-term temperature-resistant material.
Description
Električna varovalkaElectrical fuse
Izum se nanaša na električno varovalko z nožastima kontaktoma. Izumi te vrste spadajo na področje elektrotehnike, namreč k osnovnim električnim komponentam, in sicer k varovalkam, pri katerih tok teče skozi del taljivega materiala, ki se pri tokovni preobremenitvi prekine oz. premesti, namreč k varovalkam z nožastima kontaktoma, obenem pa se nanaša tudi na samo zasnovo talilnega elementa.The invention relates to an electrical fuse with blade contacts. Inventions of this type belong to the field of electrical engineering, namely to basic electrical components, namely to fuses, in which the current flows through a part of the fusible material, which is interrupted during current overload or. transfers, namely to fuses with blade contacts, and at the same time also refers to the design of the melting element itself.
Pri tem je izum osnovan na problemu, kako električno varovalko z nožastima kontaktoma učinkovito zaščititi proti formiranju obloka v območju med omenjenima kontaktoma, ne da bi bilo v ta namen potrebno povečati dolžino talilnega elementa in okrova varovalke.The invention is based on the problem of how to effectively protect an electric fuse with blade contacts against the formation of an arc in the area between said contacts, without it being necessary to increase the length of the fuse element and the fuse housing.
Električna varovalka z nožastima kontaktoma je med drugim opisana v EP 1 403 894 Al in v DE 197 23 540 Al. V obeh primerih gre za varovalko, ki sestoji iz cevasto zasnovanega okrova iz električno neprevodnega materiala, še zlasti iz keramike, ki je na obeh koncih zaprto s togima pokrovoma. V izmed omenjenih pokrovov obsega po en takoimenovan nožast kontakt iz električno prevodnega materiala, ki je vstavljiv v primemo viličasto zasnovano ležišče iz električno prevodnega materiala, s katerim je opremljen vsakokrat razpoložljiv električni tokokrog, za katerega zaščito proti električnim preobremenitvam je varovalka predvidena. Med omenjenima vsaksebi štrlečima nožastima kontaktoma je v notranjosti omenjenega okrova vgrajen talilni element, ki je električno povezan z vsakim izmed omenjenih kontaktov in obdan s sipkim negorljivim sredstvom, v praksi običajno kar s kremenčevim peskom. Talilni element je zasnovan kot razmeroma tanek trak iz električno prevodnega kovinskega materiala vnaprej določene električne upornosti, ki je razen tega opremljen z med seboj enakomerno po njegovi dolžini razporejenimi skoznjimi odprtinami, s pomočjo katerih so na omenjenem traku oblikovane oslabitve zaradi formiranja vnaprej znanega prečnega prereza talilnega elementa, ki skupaj z omenjenim materialom vnaprej določene električne upornosti definira nazivno moč varovalke oz. pogoje, pri katerih v primeru preobremenitve električnega tokokroga pride do pregrevanja in taljenja materiala talilnega elementa ter s tem do prekinitve slednjega in posledično tudi električnega tokokroga. Varovalke po stanju tehnike običajno obsegajo tudi indikator, s pomočjo katerega je možno tudi od zunaj vizualno ugotoviti, da je talilni element prekinjen.The electric fuse with blade contacts is described, inter alia, in EP 1 403 894 A1 and in DE 197 23 540 A1. In both cases, it is a fuse consisting of a tubular housing made of electrically non-conductive material, in particular of ceramic, which is closed at both ends by rigid covers. In the above-mentioned covers, there is one so-called knife contact made of electrically conductive material, which can be inserted into a grip-shaped fork-shaped bearing made of electrically conductive material, which is equipped with the available electrical circuit for which protection against electrical overloads is provided. Between said two protruding blade contacts, a melting element is installed inside said housing, which is electrically connected to each of said contacts and surrounded by a loose non-combustible agent, in practice usually quartz sand. The melting element is designed as a relatively thin strip of electrically conductive metal material of predetermined electrical resistance, which is also equipped with evenly spaced through its openings, through which attenuations are formed on said strip due to the formation of a predetermined cross section of the melting point. element, which together with the mentioned material of predetermined electrical resistance defines the rated power of the fuse or. conditions under which, in the event of an overload of the electrical circuit, the material of the melting element overheats and melts, and thus the latter and consequently also the electrical circuit are interrupted. According to the state of the art, fuses usually also comprise an indicator, by means of which it is possible to visually determine from the outside that the melting element is broken.
Varovalka prej opisane vrste v praksi zelo dobro služi svojemu namenu pri zaščiti izmeničnih električnih tokokrogov. V primeru uporabe pri električnih tokokrogih z enosmerno napetostjo pa velik problem predstavlja formiranje obloka, ki je v notranjosti okrova varovalke prisoten navkljub prekinitvi talilnega elementa. Tovrstni električni tokokrogi so med drugim znani na področju fotovoltaike in so v sodobni elektrotehniki zelo pogosti. Kadar se namreč električni oblok prebije izven okrova, še zlasti v območju stika med keramičnim okrovom in eno izmed togih plošč z nožastima kontaktoma, vselej obstoji velika nevarnost, da bi varovalka zanetila požar. V primerih, kadar gre za večje nazivne vrednosti enosmerne napetosti, je zatorej potrebno izbrati varovalko z večjo dolžino talilnega elementa in okrova, kar pa ni le dražje, temveč pogosto vodi do problemov v zvezi z možnostjo vgradnje varovalk na obstoječe in tipizirane lokacije, ki so v stroki v ta namen predvidene.In practice, a fuse of the type described above serves its purpose very well in protecting alternating current circuits. In the case of use in DC circuits, a major problem is the formation of an arc, which is present inside the fuse housing despite the interruption of the melting element. Such electrical circuits are known, among other things, in the field of photovoltaics and are very common in modern electrical engineering. Namely, when an electric arc penetrates outside the housing, especially in the area of contact between the ceramic housing and one of the rigid plates with blade contacts, there is always a high risk of the fuse igniting. In cases where higher nominal values of direct voltage are involved, it is therefore necessary to choose a fuse with a longer length of the melting element and the housing, which is not only more expensive but often leads to problems with the possibility of installing fuses on existing and standardized locations. provided for in the profession for this purpose.
Izum se nanaša na električno varovalko, ki v splošnem sestoji iz cevasto zasnovanega okrova iz električno izolativnega materiala, ki je na konceh zaprt s togima pokrovoma, od katerih vsak obsega z njim togo povezan nožast kontakt iz električno prevodnega materiala, medtem ko je v notranjosti omenjenega okrova vgrajen kot ploščat trak iz električno prevodnega materiala vnaprej določene električne upornosti zasnovan talilni element vnaprej določene dolžine in debeline, ki je po eni strani v svojih končnih območjih električno povezan z omenjenima nožastima kontaktoma in po drugi strani opremljen z množico vzdolž traku med seboj enakomerno razporejenih in glede na trak v prečni smeri potekajočih oslabitev v obliki perforacij omenjenega traku med obema dominantnima površinama le-tega. Pri tem je vsakokratna oslabitev na voljo kot množica med seboj v prečni smeri traku enakomerno razporejenih skoznjih lukenj, tako da je prečni presek talilnega elementa v vsaki izmed omenjenih oslabitev vnaprej določen in manjši od preseka talilnega elementa v preostalih območjih le-tega, obenem pa je notranjost t.j. svetlina omenjenega okrova zapolnjena s sipkim negorljivim sredstvom, še zlasti s kremenčevim peskom, s katerim je obdan omenjen talilni element.The invention relates to an electrical fuse, which generally consists of a tubular housing made of electrically insulating material, closed at the ends by rigid covers, each of which comprises a rigidly connected knife contact made of electrically conductive material, while inside said housing melted as a flat strip of electrically conductive material of predetermined electrical resistance designed melting element of predetermined length and thickness, which on the one hand in its end areas is electrically connected to said blade contacts and on the other hand equipped with a plurality of evenly spaced and with respect to the strip in the transverse direction of the attenuations in the form of perforations of said strip between the two dominant surfaces thereof. In this case, each weakening is available as a set of evenly spaced through holes in the transverse direction of the strip, so that the cross section of the melting element in each of said weakenings is predetermined and smaller than the cross section of the melting element in the remaining areas. interior i.e. the lumen of said housing is filled with a bulk non-combustible agent, in particular quartz sand, which surrounds said melting element.
Po izumu je predvideno, da je vsaj v vsakem izmed končnih območij omenjenega talilnega elementa, namreč med vsakokrat pripadajočim nožastim kontaktom in vsakokrat slednjemu najbližjo oslabitvijo, na vsaki izmed vsaksebi obrnjenih dominantnih površin talilnega elementa nanešena vsaj po ena prepreka za preprečevanje napredovanja električnega obloka, ki je usmerjena v prečni smeri talilnega elementa vzdolž vsake izmed omenjenih dominantnih površin in poteka po celotni širini traku talilnega elementa, sestoji pa iz gibkega in vsaj kratkotrajno temperaturno obstojnega gradiva.According to the invention, it is provided that at least one barrier is applied to each of the inverted dominant surfaces of the melting element in at least one barrier in each of the end regions of said melting element, namely between the respective blade contact and the closest weakening of the latter. it is directed in the transverse direction of the melting element along each of said dominant surfaces and runs along the entire width of the strip of the melting element, and consists of a flexible and at least short-term temperature-resistant material.
Pri prednostni izvedbi izuma je vsaj ena nadaljnja prepreka iz gibkega in temperaturno obstojnega gradiva na voljo na obeh vsaksebi obrnjenih dominantnih površinah talilnega elementa med vsaj še dvema nadaljnjima oslabitvama le-tega.In a preferred embodiment of the invention, at least one further barrier of flexible and temperature-resistant material is available on the two mutually facing dominant surfaces of the melting element during at least two further weakenings thereof.
Pri tem sta vsakokratni končni prepreki od pripadajočih nožastih kontaktov oddaljeni za vnaprej določeno razdaljo, ki znaša vsaj približno 15% dolžine talilnega elementa. Se zlasti je prednostno, če je poleg omenjenih končnih preprek vsaj po ena prepreka na voljo med vsako izmed dvojic vsakokrat sosednjih oslabitev talilnega elementa. Nadalje je pri prednostni izvedbi izuma predvideno, daje vsaka izmed preprek v profilu vsaj približno polkrožno zasnovana, pri čemer premer vsakokratne prepreke znaša 2-6 mm, še zlasti 3-4 mm, kot tudi, da vsakokratna prepreka sestoji iz silikona, ki je vsaj kratkotrajno odporen proti temperaturi najmanj 2000°C.In this case, each end barrier is spaced from the corresponding blade contacts by a predetermined distance of at least about 15% of the length of the melting element. It is particularly advantageous if, in addition to said end barriers, at least one barrier is present between each of the pairs of adjacent melting element weaknesses. Furthermore, in a preferred embodiment of the invention, it is provided that each of the barriers in the profile is at least approximately semicircular in design, the diameter of each barrier being 2-6 mm, in particular 3-4 mm, and that each barrier consists of silicone at least short-term resistant to temperatures of at least 2000 ° C.
Izum bo v nadaljevanju obrazložen s primerom izvedbe, ki je prikazan na priloženi skici, kjerThe invention will be further illustrated by an example of the embodiment shown in the accompanying drawing, where
Sl. 1 kaže shematično in v prerezu v eni diametralni ravnini ponazorjeno varovalko po izumu,Sl. 1 shows a schematic and cross-sectional view of a fuse according to the invention in one diametrical plane,
Sl. 2 pa prav tako shematično in v prerezu v preostali in glede na predhodno ravnino pravokotni diametralni ravnini ponazorjeno varovalko po Sl. 1.Sl. 2 also shows schematically and in cross-section in the remaining and with respect to the previous plane perpendicular to the diametrical plane the fuse according to FIG. 1.
Električna varovalka, ki je prikazana na Sl. 1 in 2, sestoji iz cevasto zasnovanega okrova 1 iz električno izolativnega materiala, ki je v prikazanem primeru keramika. Okrov 1 je na konceh 11,12 zaprt s togima pokrovoma 21, 22, ki sta v prikazanem primeru izvedena kot razmeroma debeli kovinski plošči. Vsak izmed omenjenih pokrovov 21, 22 obsega z njim togo povezan nožast kontakt 210, 220 iz električno prevodnega materiala, pri čemer sta omenjena nožasta kontakta 210, 220 razporejena vzdolž osrednje geometrijske osi okrova 1 varovalke in štrlita vsaksebi.The electrical fuse shown in FIG. 1 and 2, consists of a tubularly designed housing 1 made of an electrically insulating material, which in the example shown is ceramic. The housing 1 is closed at the ends 11,12 by rigid covers 21, 22, which in the example shown are made as relatively thick metal plates. Each of said covers 21, 22 comprises a rigidly connected blade contact 210, 220 of electrically conductive material, said blade contacts 210, 220 arranged along the central geometric axis of the fuse housing 1 and projecting from each other.
V notranjosti omenjenega okrova 1 je vgrajen kot ploščat trak iz električno prevodnega materiala vnaprej določene električne upornosti zasnovan talilni element 3 vnaprej določene dolžine L (Sl. 1) 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. Debelina omenjenega traku običajno znaša med 0,04 in 0,24 mm. Omenjene oslabitve 30, 30', 30 so tako kot pri doslej znanih varovalkah tudi v tem primeru izvedene 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. Temu ustrezno je prečni presek talilnega elementa 3 v območju vsake izmed omenjenih oslabitev 30, 30', 30 vnaprej določen in manjši od preseka talilnega elementa 3 v preostalih območjih le-tega.Inside said housing 1 is mounted as a flat strip of electrically conductive material of a predetermined electrical resistance, a melting element 3 of predetermined length L (Fig. 1) and thickness, which is electrically connected to its said ends in its end areas 31, 32. blade contacts 210, 220 and, on the other hand, provided with a plurality of attenuations 30, 30 ', 30 distributed evenly along the strip and extending with respect to the strip in the transverse direction. The thickness of said strip is usually between 0.04 and 0.24 mm. Said attenuations 30, 30 ', 30 are, as in the case of the known fuses, in the case of 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 holes 300 in the transverse direction of the strip. Accordingly, the cross section of the melting element 3 in the region of each of said weakenings 30, 30 ', 30 is predetermined and smaller than the cross section of the melting element 3 in the remaining regions thereof.
Nadalje 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.Furthermore, the interior i.e. the lumen of said housing 1 is filled with a loose non-combustible means 4, in particular with quartz sand, which surrounds said melting element 3.
Kot je nadalje razvidno na Sl. 1 in 2, je 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 nanesena 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.As can be further seen in FIG. 1 and 2, at least in each of the end regions 31, 32 of said melting element 3, namely between the respective blade contact 210, 220 and each of the latter at least the weakening 30, 30 ', 30, on each of the inverted dominant surfaces 33, 34 melting element 3 applied at least one barrier 51, 51 ', 51; 52, 52 ', 52 for preventing 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 .
Po izumu je nadalje prednostno, če je je vsaj še ena nadaljnja prepreka 51, 5Γ, 51; 52, 52', 52 iz gibkega in temperaturno obstojnega gradiva na voljo na obeh vsaksebi obrnjenih dominantnih površinah 33, 34 talilnega elementa 3 med vsaj še dvema nadaljnjima oslabitvama 30, 30', 30 le-tega.According to the invention, it is further preferred if at least one further barrier is 51, 5Γ, 51; 52, 52 ', 52 of flexible and temperature-resistant material are available on both mutually facing dominant surfaces 33, 34 of the melting element 3 during at least two further weakenings 30, 30', 30 thereof.
Pri tem je vsaka izmed končnih, namreč najbližje nožastima kontaktoma 210, 220 razporejenih preprek 51, 5 Γ, 51; 52, 52', 52 od pripadajočega nožastega kontakta 210, 220 oddaljena za vnaprej določeno razdaljo T, ki znaša vsaj približno 15% dolžine L talilnega elementa 3.In this case, each of the end obstacles, namely closest to the blade contacts 210, 220, is 51, 5 Γ, 51; 52, 52 ', 52 away from the corresponding blade contact 210, 220 by a predetermined distance T of at least about 15% of the length L of the melting element 3.
Možna je tudi izvedba varovalke, pri kateri je poleg omenjenih končnih preprek 51, 51', 51; 52, 52', 52 vsaj po ena prepreka na voljo med vsako izmed dvojic vsakokrat sosednjih oslabitev 30, 30', 30 talilnega elementa 3.It is also possible to provide a fuse in which, in addition to said end barriers 51, 51 ', 51; 52, 52 ', 52 at least one barrier is available between each of the pairs of adjacent weakenings 30, 30', 30 of the melting element 3.
Po izumu je nadalje predvideno, daje vsaka izmed preprek 51, 51', 51; 52, 52', 52 v profilu vsaj približno polkrožno zasnovana, pri čemer pa premer D vsakokratne prepreke 51, 51', 51; 52, 52', 52 znaša 2 - 6 mm, prednostno pa 3 - 4 mm. Vsakokratna prepreka 51, 5Γ, 51; 52, 52', 52 sestoji iz silikona, kije vsaj kratkotrajno odporen proti temperaturi najmanj 2000°C. Material za izvedbo prepreke 51, 5 Γ, 51; 52, 52', 52 je tačas komercialno dostopen pod komercialnim imenom »3M Fire Barrier 2000+« ali »FIRESTOP«, gre pa za silikon z dodanim aluminijevim trihidratom A1(OH)3 in/ali borovim nitridom BN.According to the invention, it is further provided that each of the obstacles 51, 51 ', 51; 52, 52 ', 52 in the profile at least approximately semicircularly designed, the diameter D of each barrier 51, 51', 51; 52, 52 ', 52 is 2 - 6 mm, and preferably 3 - 4 mm. Each obstacle 51, 5Γ, 51; 52, 52 ', 52 consists of silicone which is at least briefly resistant to a temperature of at least 2000 ° C. Obstacle material 51, 5 Γ, 51; 52, 52 ', 52 is then commercially available under the trade name "3M Fire Barrier 2000+" or "FIRESTOP", and is a silicone with added aluminum trihydrate A1 (OH) 3 and / or boron nitride BN.
Claims (8)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SI201400387A SI24871B (en) | 2014-10-24 | 2014-10-24 | Electric fuse |
| PCT/SI2014/000072 WO2016064352A1 (en) | 2014-10-24 | 2014-12-05 | Electric fuse |
| ES14835723T ES2819289T3 (en) | 2014-10-24 | 2014-12-05 | Electric fuse |
| PT148357239T PT3210231T (en) | 2014-10-24 | 2014-12-05 | Electric fuse |
| EP14835723.9A EP3210231B1 (en) | 2014-10-24 | 2014-12-05 | Electric fuse |
| PL14835723T PL3210231T3 (en) | 2014-10-24 | 2014-12-05 | Electric fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SI201400387A SI24871B (en) | 2014-10-24 | 2014-10-24 | Electric fuse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SI24871A true SI24871A (en) | 2016-04-29 |
| SI24871B SI24871B (en) | 2020-11-30 |
Family
ID=52469268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SI201400387A SI24871B (en) | 2014-10-24 | 2014-10-24 | Electric fuse |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP3210231B1 (en) |
| ES (1) | ES2819289T3 (en) |
| PL (1) | PL3210231T3 (en) |
| PT (1) | PT3210231T (en) |
| SI (1) | SI24871B (en) |
| WO (1) | WO2016064352A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019005664A1 (en) * | 2019-06-25 | 2020-12-31 | Siba Fuses Gmbh | Fusible link and fuse |
| US11636993B2 (en) | 2019-09-06 | 2023-04-25 | Eaton Intelligent Power Limited | Fabrication of printed fuse |
| CN110911254B (en) * | 2019-12-17 | 2025-06-06 | Aem科技(苏州)股份有限公司 | A high voltage power fuse and a method for manufacturing the same |
| FR3113180B1 (en) | 2020-07-29 | 2022-08-05 | Mersen France Sb Sas | Fuse and associated method of manufacture |
| WO2022179754A1 (en) * | 2021-02-25 | 2022-09-01 | Eaton Intelligent Power Limited | Design and fabrication of printed fuse |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2496704A (en) * | 1945-03-15 | 1950-02-07 | Westinghouse Electric Corp | Circuit interrupter |
| US4032879A (en) * | 1975-11-18 | 1977-06-28 | Teledyne, Inc. | Circuit-protecting fuse having arc-extinguishing means |
| US5596306A (en) * | 1995-06-07 | 1997-01-21 | Littelfuse, Inc. | Form fitting arc barrier for fuse links |
| US20080122571A1 (en) * | 2006-11-28 | 2008-05-29 | Emerson Electric Co. | Fulgurite reducing fuse |
-
2014
- 2014-10-24 SI SI201400387A patent/SI24871B/en active Search and Examination
- 2014-12-05 ES ES14835723T patent/ES2819289T3/en active Active
- 2014-12-05 PL PL14835723T patent/PL3210231T3/en unknown
- 2014-12-05 PT PT148357239T patent/PT3210231T/en unknown
- 2014-12-05 WO PCT/SI2014/000072 patent/WO2016064352A1/en active Application Filing
- 2014-12-05 EP EP14835723.9A patent/EP3210231B1/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| SI24871B (en) | 2020-11-30 |
| PL3210231T3 (en) | 2020-12-14 |
| ES2819289T3 (en) | 2021-04-15 |
| PT3210231T (en) | 2020-10-07 |
| WO2016064352A1 (en) | 2016-04-28 |
| EP3210231A1 (en) | 2017-08-30 |
| EP3210231B1 (en) | 2020-07-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OO00 | Grant of patent |
Effective date: 20160526 |
|
| OU02 | Decision according to article 73(2) ipa 1992, publication of decision on partial fulfilment of the invention and change of patent claims |
Effective date: 20201012 |