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Application filed by Eti Elektroelement D.D.filedCriticalEti Elektroelement D.D.
Priority to SI200800324ApriorityCriticalpatent/SI22944B/en
Priority to EP09807514.6Aprioritypatent/EP2382647B1/en
Priority to PCT/SI2009/000067prioritypatent/WO2010077209A1/en
Publication of SI22944ApublicationCriticalpatent/SI22944A/en
Publication of SI22944BpublicationCriticalpatent/SI22944B/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
H01H85/20—Bases for supporting the fuse; Separate parts thereof
H01H85/202—Bases for supporting the fuse; Separate parts thereof for fuses with ferrule type 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
H01H85/54—Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers
H01H85/547—Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers with sliding fuse carrier
Landscapes
Contacts
(AREA)
Switch Cases, Indication, And Locking
(AREA)
Fuses
(AREA)
Abstract
The current electrical contact (11, 12) inside the chassis (1) of the safety switch adapted for accepting the corresponding electrically conductive section (31, 32) of the fusible cut-out (3) consists of one rigid contact element (112, 122) and one flexible contact element (111, 121) each, while each of the specified rigid contact elements (112, 122) is electrically connected to the current corresponding electrical terminal (103, 104) on the enclosure (1) and located directly beneath the slant footing (13) consisting of electrically non-conductive material and in the direction of the current corresponding contact element (111, 121) reaches beyond the aforementioned rigid contact element (112, 122). This way during inserting or during the removal of the fusible cut-out (3) an excessive wear of the surfaces of the contact elements (111, 121; 112, 122) is prevented while at the same time this also prevents any possibility of generating an electrical arch under regular application conditions of the switch.
Claims (2)
ETI ELEKTROELEMENT d.d. Električno stikalo s talilnim vložkom SPREMENJENA PATENTNA ZAHTEVKA 1. Električno stikalo s talilnim vložkom (3), sestoječe iz ohišja (1) iz električno neprevodnega gradiva, ki obsega priključka (103, 104) za povezavo stikala v vsakokrat razpoložljiv električni tokokrog in ki je prirejeno za prejem prav tako iz električno neprevodnega gradiva sestoječega nosilca (2) v osnovi cilindričnega in na svojih koncih s cilindričnima površinskima odsekoma (31, 32) iz električno prevodnega materiala opremljenega talilnega vložka (3), pri čemer sta v notranjosti omenjenega ohišja (1) predvidena električna kontakta (11, 12), od katerih je vsak zase električno povezan z vsakokrat pripadajočim priključkom (103, 104) na ohišju (1) in ki sta prirejena za prejem električno prevodnih odsekov (31, 32) talilnega vložka (3), in pri čemer vsakokraten za prejem vsakokrat pripadajočega električno prevodnega odseka (31, 32) talilnega vložka (3) prirejen električni kontakt (11, 12) sestoji iz po enega togega kontaktnega elementa (112, 122) in po enega prožnega kontaktnega elementa (111, 121), in pri čemer je vsak od omenjenih togih kontaktnih elementov (112, 122) električno povezan z vsakokrat pripadajočim električnim priključkom (103, 104) na ohišju (1) in razporejen neposredno pod odrivno poševnino (13), ki sestoji iz električno 2 neprevodnega materiala in v smeri proti vsakokrat pripadajočemu prožnemu kontaktnemu elementu (111, 121) sega preko omenjenega togega kontaktnega elementa (112, 122), in pri čemer vsakokrat razpoložljiv togi kontaktni element (112, 122) sestoji vsaj pretežno iz bakra ali legure na osnovi bakra in je vsaj na tisti svoji površini, ki je obrnjena proti pripadajočemu prožnemu kontaktnemu elementu (111, 121), opremljen s površinsko prevleko iz električno prevodnega gradiva, označeno s tem, da vsakokraten prožen kontaktni element (111, 121) sestoji iz jekla, še zlasti iz vzmetnega jekla in je vsaj na tisti svoji površini, ki je obrnjena proti pripadajočemu togemu kontaktnemu elementu (112, 122), opremljen s protikorozijsko površinsko prevleko, površinska prevleka prožnega kontaktnega elementa (111, 121) pa sestoji iz niklja ali legure na osnovi niklja.ETI ELEKTROELEMENT d.d. An electrical switch with a fusible insert 1. An electric switch with a fusible insert (3), consisting of a housing (1) made of electrically non-conductive material, comprising connections (103, 104) for connecting the switch to the available electric circuit and which is adapted for receiving from the electrically non-conductive material of the assembled carrier (2) in the base of the cylinder and at its ends with cylindrical surface sections (31, 32) from the electrically conductive material of the melting insert (3) equipped, wherein, in the interior of said housing (1) (11, 12), each of which is electrically connected to each respective connection (103, 104) on the housing (1) and which are adapted to receive the electrically conductive portions (31, 32) of the melting insert (3), and wherein, in order to receive each electrically conductive portion (31, 32) of the melting insert (3), an electrical contact (11, 1 2) consists of one rigid contact element (112, 122) and one resilient contact element (111, 121), and wherein each of said rigid contact elements (112, 122) is electrically connected to each respective electrical connection (103 , 104) on the housing (1) and is arranged directly below the tilting slope (13) consisting of an electrically non-conducting material and extending through said rigid contact element (112, 122) towards each corresponding flexible contact element (111, 121) , and wherein in each case the available rigid contact element (112, 122) consists at least predominantly of a copper or copper-based alloy and at least on its surface facing the corresponding flexible contact element (111, 121) is provided with a surface coating from an electrically conductive material, characterized in that the respective flexible contact element (111, 121) consists of steel, in particular a spring steel, and at least on its own p an outlet facing the corresponding rigid contact element (112, 122) is provided with a corrosion-resistant surface coating, and the surface coating of the flexible contact element (111, 121) consists of a nickel-based nickel or base alloy.2. Stikalo po zahtevku 1, označeno s tem, daje nosilec (2) talilnega vložka (3) v ohišju (1) voden s pomočjo vodil (20), ki so ravna ali blago ukrivljena in potekajo v smeri proti kontaktoma (11,12).2. The switch according to claim 1, characterized in that the carrier (2) of the melting insert (3) in the housing (1) is guided by means of guides (20) which are flat or slightly curved and extend towards the contacts (11, 12 ).
SI200800324A2008-12-292008-12-29Electrical switch with fusible cut-out
SI22944B
(en)