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Application filed by Eti Elektroelement D.D.filedCriticalEti Elektroelement D.D.
Priority to SI201000079ApriorityCriticalpatent/SI23333B/en
Priority to AU2010347735Aprioritypatent/AU2010347735B2/en
Priority to PCT/SI2010/000074prioritypatent/WO2011112159A1/en
Priority to EP10809342.8Aprioritypatent/EP2545576B1/en
Publication of SI23333ApublicationCriticalpatent/SI23333A/en
Publication of SI23333BpublicationCriticalpatent/SI23333B/en
H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
H01H71/10—Operating or release mechanisms
H01H71/50—Manual reset mechanisms which may be also used for manual release
H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
H01H71/526—Manual reset mechanisms which may be also used for manual release actuated by lever the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure
H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
H01H73/48—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having both electrothermal and electromagnetic automatic release
H01H73/50—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having both electrothermal and electromagnetic automatic release reset by lever
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Physics & Mathematics
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Electromagnetism
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Breakers
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Mechanisms For Operating Contacts
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Abstract
The intention of the invention is to design a safety electric switch which would respond, after inclusion into a respective electric circuit, either to excessive thermal overloads or to the occurrence of short circuit current within the circuit, by breaking the latter, where - especially in the case of the occurrence of short circuit current - the break of the circuit would be carried out much quicker and more reliably than in so far known switches of this kind. The switch comprises a casing (1) in whichthere are available an immovable contact (2) and a movable contact (3) that is operateable by means of a switch-off mechanism (5) which in turn is triggered by a trigger (4) and connected to a switching arm (6). In this context, the movable contact (3) is available as a one-piece designed lever, turnable around a pivotal point (30) available in the casing (1), which is swingable from the stable fitting position against the immovable contact (2) into the stably supported position at a displacement from thesaid immovable contact (3) and adapted for cooperation with the switch-off mechanism (5), namely either by means of a switching lever (51) or a striking lever (52) of the said mechanism (5).
Claims (6)
ETI ELEKTROELEMENT d.d. Varnostno električno stikalo SPREMENJENI ZAHTEVKI 1. Varnostno električno stikalo, pri katerem sta na ohišju (1), sestoječem iz električno neprevodnega gradiva, predvideni vsaj dve električni sponki za priključitev vsaj dveh priključnih žic, preko katerih je stikalo povezljivo v vsakokraten električni tokokrog, medtem ko sta v notranjosti omenjenega ohišja (1) zaradi sklenitve oziroma prekinitve električnega tokokroga vgrajena nepremakljiv električni kontakt (2) in premakljiv električni kontakt (3), ki vsak zase sestojita iz električno prevodnega materiala in ki sta vsak zase povezana z vsakokrat pripadajočo sponko za povezavo v vsakokraten električni tokokrog, pri čemer je omenjen premakljivi kontakt (3) prirejen za sodelovanje z odklopnim mehanizmom (5), ki je po eni strani povezan s stikalno ročico (6) za upravljanje stikala in za indikacijo napak ter prirejen za aktiviranje s pomočjo sprožilca (4), in pri čemer omenjeni sprožilec obsega vsaj električno tuljavo (41), bimetalno podložko (42) in udarno iglo (43), ki bodisi zaradi raztezanja bimetalne podložke (42) ali elektromagnetnega polja tuljave (41) učinkuje na omenjen odklopni mehanizem (5), in pri čemer je omenjena stikalna ročica (6) zasukljivo uležiščena v notranjosti ohišja (1) in obsega izven ohišja (1) segajoč upravljalni del (61) in v notranjosti 2 ohišja (1) razporejen del (62), h kateremu je priključen stikalni locen (53), ki je prirejen za povezavo stikalne ročice (6) z omenjenim odklopnim mehanizmom (5), posredno pa tudi s premakljivim kontaktom (3), in pri čemer omenjen odklopni mehanizem (5) nadalje obsega stikalni vzvod (51) in udarni vzvod (52), pri čemer je stikalni vzvod (51) v svojem vrtišču (510) zasukljivo uležiščen v ohišju (1) in obsega v bližini udarne igle (43) sprožilca (4) razporejen drugi nased (512) kot tudi v bližini stikalne ročice (6) razporejen in za sodelovanje z omenjenim stikalnim locnom (53) prirejen prvi nased (511), obenem pa tudi med omenjenima nasedoma (511, 512) in na ustrezni razdalji od vrtišča (510) stikalnega vzvoda (51) razporejen nastavek (515), na katerem je pripeta natezna vzmet (7), ki je po drugi strani pripeta na premakljivem kontaktu (3), medtem ko v ustreznem vrtišču (520) na stikalnem vzvodu (51) zasukljivo uležiščen udarni vzvod (52) obsega prvi krak (521) in drugi krak (522), ki se je razporejen glede na vrtišče (520) nasproti in ob nasedu (511) stikalnega vzvoda (51), tako daje stikalni locen (53), kije po eni strani členkasto povezan s stikalno ročico (6), po drugi strani vstavljiv med krak (522) udarnega vzvoda (52) in nased (511) stikalnega vzvoda (51), in pri čemer je premakljivi kontakt (3) na voljo kot okoli v ohišju (1) razpoložljivega vrtišča (30) zasukljiv in enovito zasnovan vzvod, ki je zavihtljiv iz položaja stabilnega naleganja na nepremakljivem kontaktu (2) v stabilno podprt položaj na odmiku od omenjenega nepremakljivega kontakta (2) in prirejen za sodelovanje z odklopnim mehanizmom (5), namreč bodisi s stikalnim vzvodom (51) ali z udarnim vzvodom (52) omenjenega mehanizma (5), označeno s tem, da je prvi krak (521) udarnega vzvoda razporejen neposredno pred udarno iglo (43) sprožilca (4), in s tem, da je vrtišče (30) premakljivega kontakta (3) razporejeno vsaj približno v liniji premikanja udarne igle (43) in pred 3ETI ELEKTROELEMENT d.d. A safety electrical switch in which at least two electrical terminals are provided on the housing (1) consisting of electrically non-conductive material for the connection of at least two connecting wires through which the switch is connected to each electrical circuit, while due to the conclusion or interruption of the electrical circuit, a fixed electrical contact (2) and a movable electrical contact (3) are installed inside the said housing (1), each of which consists of an electrically conductive material and which are each connected to a connecting terminal in each case. each electrical circuit, said movable contact (3) adapted to cooperate with the disconnecting mechanism (5), which is connected on the one hand to the switch lever (6) for switch control and for fault indication, and adapted for actuation by means of a trigger 4), and wherein said trigger comprises at least an electric coil (41), bimetallic p a sleeve (42) and an impact needle (43) acting either on the disengagement mechanism (5) due to either the expansion of the bimetallic washer (42) or the electromagnetic field of the coil (41), and said switch lever (6) is pivotably mounted inside of the housing (1) and comprising a control part (61) extending beyond the housing (1) and a part (62) arranged inside the housing (1), to which a switch arc (53) is adapted, which is adapted to connect the switch lever (6). ) with said disengagement mechanism (5) and indirectly with a movable contact (3), wherein said disconnecting mechanism (5) further comprises a switch lever (51) and a shock lever (52), wherein the switch lever (51) in its pivot (510) rotatably mounted in the housing (1) and comprising a second seat (512) arranged near the trigger needle (43) of the trigger (4) as well as arranged and cooperating with said switch arc (6) in the vicinity of the switch lever (6). 53) adapted the first seat (511), and at the same time between the said seats (511, 51 2) and at a suitable distance from the pivot point (510) of the switch lever (51) an attachment (515) is arranged, on which a tension spring (7) is attached, which on the other hand is attached to the movable contact (3), while in the corresponding pivot (520) on the switch lever (51) the pivoting bearing lever (52) comprises a first leg (521) and a second leg (522) arranged with respect to the pivot (520) opposite and at the seat (511) of the switch lever (51). ), so that the switch separator (53) is articulated on the one hand with the switch lever (6), on the other hand insertable between the leg (522) of the impact lever (52) and the seat (511) of the switch lever (51), and at wherein the movable contact (3) is provided as a swivel and uniformly designed lever around the housing (1) of the available pivot (30) which is pivotable from a stable position on the fixed contact (2) to a stable supported position at a distance from said fixed contact (2) and adapted to cooperate with the release mechanism (5), namely either with the sti mud lever (51) or the impact lever (52) of said mechanism (5), characterized in that the first leg (521) of the impact lever is arranged directly in front of the impact needle (43) of the trigger (4), and that the pivot (30) of the movable contact (3) arranged at least approximately in the line of movement of the striker pin (43) and in front of 3slednjo, pri čemer sta v območju med premakljivim kontaktom (3) in udarno iglo (43) razporejena krak (521) udarnega vzvoda (52) in nased (512) stikalnega vzvoda (5), in s tem, da je na omenjenem prvem kraku (521) upravljalne ročice (52) z namenom sodelovanja z omenjenim premakljivim kontaktom (3) na voljo nastavek (523), in s tem, da je omenjen premakljivi kontakt (3) s svojim krakom (31) proti nepremakljivemu kontaktu (2) pritisljiv s pomočjo vzmeti (7), ki je napeta med nastavkom (515), kije razporejen na obodu stikalnega vzvoda (51) v bližini stikalne ročice (6), in nasedom (32), ki je na premakljivem kontaktu (3) razporejen na odmiku od vrtišča (30) in pod ustreznim kotom glede na smer poteka omenjenega kraka (31), pri čemer je na omenjenem kraku (31) premakljivega kontakta (3) predvidena naležna površina (310), ki je prirejena za sodelovanje bodisi z v bližini udarne igle (43) sprožilca (4) razporejenim nasedom (512) stikalnega vzvoda (51) ali z ustreznim nastavkom (523) na ob udarni igli (43) sprožilca (4) razporejenem kraku (521) udarnega vzvoda (52), pri čemer je omenjen premakljivi kontakt (3) prirejen za sodelovanje z odklopnim mehanizmom (5), namreč bodisi stikalnim vzvodom (51) ali udarnim vzvodom (52) le-tega, tako daje premakljivi kontakt (3) zavihtljiv okoli svojega vrtišča (30) v smeri vstran od nepremakljivega kontakta (2) - bodisi s pomočjo naleganja naseda (512) stikalnega vzvoda (51) na naležno površino (310) premakljivega kontakta, kadar se stikalni vzvod (51) zasuče okoli svojega vrtišča (510) s pomočjo udarne igle (43), ki jo sproži bimetalna podložka (42) sprožilca (4), - ali alternativno in neodvisno od zasuka omenjenega stikalnega vzvoda (51) in stikalne ročice (6) z naleganjem nastavka (523) prvega kraka (521) udarnega vzvoda (52) na naležno površino (310) premakljivega kontakta (3), kadar je udarna igla (43) sprožena s pomočjo induktivne tuljave (41) v sprožilcu (4). 4 4the latter, the arm (521) of the impact lever (52) and the seat (512) of the switch lever (5) being arranged in the area between the movable contact (3) and the impact needle (43), and in that it is on said first arm (521) control levers (52) for cooperating with said movable contact (3), an attachment (523) is provided, and said movable contact (3) with its arm (31) against the fixed contact (2) is compressible. by means of a spring (7) tensioned between a socket (515) arranged on the circumference of the switch lever (51) near the switch lever (6) and a seat (32) arranged on the movable contact (3) at a distance from the pivot point (30) and at an appropriate angle with respect to the direction of passage of said arm (31), said bearing surface (310) being provided on said arm (31) of the movable contact (3) adapted to cooperate either in the vicinity of the striker needle (43) the trigger (4) to the arranged levers (512) of the switch lever (51) or with the corresponding attachment (523) on the circumference the trigger arm (43) of the shock arm arm (52) arranged (521), said movable contact (3) being adapted to cooperate with the release mechanism (5), namely either the switch lever (51) or the impact lever. 52) thereof, so that the movable contact (3) swivels around its pivot (30) in a direction away from the fixed contact (2) - either by means of the seat lever (512) resting on the contact surface (310) of the movable (310) contact when the switch lever (51) is rotated about its pivot (510) by means of an impact needle (43) actuated by the bimetallic washer (42) of the trigger (4), - or alternatively and independently of the rotation of said switch lever (51) and switch levers (6) by abutting the attachment (523) of the first arm (521) of the impact lever (52) on the abutment surface (310) of the movable contact (3) when the impact needle (43) is actuated by means of an inductive coil (41) in trigger (4). 4 42. Stikalo po zahtevku 1, označeno s tem, da je vzmet (7) natezna vijačna vzmet.Switch according to Claim 1, characterized in that the spring (7) is a tensile helical spring.3. Stikalo po zahtevku 1 ali 2, označeno s tem, daje v zapahnjenem položaju stikalne ročice (6), ki ustreza položaju ročice (6) pri sklenjenem električnem tokokrogu skozi stikalo, premakljivi kontakt (3) neodvisno od položaja stikalnega vzvoda (51) in ročice (6) s pomočjo nastavka (523) na udarnem vzvodu (52) premakljiv iz položaja naleganja na nepremakljivem kontaktu (2) v položaj na odmiku od premakljivega kontakta (2).Switch according to Claim 1 or 2, characterized in that in the locked position of the switch lever (6) corresponding to the position of the lever (6) with the electrical circuit closed through the switch, the movable contact (3) is independent of the position of the switch lever (51). and the lever (6) movable from the bearing position on the fixed contact (2) to the position at a distance from the movable contact (2) by means of the attachment (523) on the impact lever (52).4. Stikalo po zahtevku 3, označeno s tem, da je premakljivi kontakt (3) neodvisno od položaja stikalnega vzvoda (51) in ročice (6) premakljiv iz položaja naleganja na nepremakljivem kontaktu (2), v katerem vzdolžna os vzmeti (7) mimo vrtišča (30) premakljivega kontakta (3) poteka po bližje udarni igli (43) sprožilca (4) razporejeni strani, v položaj na odmiku od premakljivega kontakta (2), v katerem vzdolžna os vzmeti (7) mimo vrtišča (30) premakljivega kontakta (3) poteka po od udarne igle (43) sprožilca (4) bolj oddaljeni strani.Switch according to claim 3, characterized in that the movable contact (3) is movable independently of the position of the switch lever (51) and the lever (6) from the position of abutment on the fixed contact (2), in which the longitudinal axis of the spring (7) passing the pivot point (30) of the movable contact (3) runs along the side closer to the striker pin (43) of the trigger (4), in a position at a distance from the movable contact (2), in which the longitudinal axis of the spring (7) past the pivot point (30) the contact (3) runs further away from the trigger needle (43) of the trigger (4).5. Stikalo po zahtevku 1 ali 2, označeno s tem, da je v drugem končnem položaju stikalne ročice (6), ki ustreza položaju ročice (6) pri razklenjenem električnem tokokrogu skozi stikalo, pri čemer se prosti konec stikalnega locna (53) nahaja med krakom (522) udarnega vzvoda (52) in nasedom (511) stikalnega vzvoda (51, premakljivi kontakt (3) zahvaljujoč nasedu (512) na stikalnem vzvodu (51) držan na odmiku od nepremakljivega kontakta (2), pri čemer vzdolžna os vzmeti (7) poteka mimo vrtišča (30) premakljivega kontakta (3) po bližje udarni igli (43) sprožilca (4) razporejeni strani omenjenega vrtišča (30). 5Switch according to Claim 1 or 2, characterized in that in the second end position of the switch lever (6), which corresponds to the position of the lever (6) with the electrical circuit open through the switch, the free end of the switch arc (53) being located between the arm of the impact lever (522) and the seat (511) of the switch lever (51, the movable contact (3) is kept at a distance from the fixed contact (2) thanks to the seat (512) on the switch lever (51), the longitudinal axis the spring (7) passes past the pivot point (30) of the movable contact (3) along the side of said pivot point (30) closer to the striker pin (43) of the trigger (4).6. Stikalo po zahtevku 1 ali 2, označeno s tem, da je v vmesnem položaju stikalne ročice (6), ki ustreza položaju ročice (6) pri zaradi pojava kratkostičnega toka razklenjenem električnem tokokrogu skozi stikalo, premakljivi kontakt (3) zahvaljujoč nasedu (512) na stikalnem vzvodu (51) držan na odmiku od nepremakljivega kontakta (2), pri čemer vzdolžna os vzmeti (7) poteka mimo vrtišča (30) premakljivega kontakta (3) po bližje udarni igli (43) sprožilca (4) razporejeni strani omenjenega vrtišča (30).Switch according to Claim 1 or 2, characterized in that in the intermediate position of the switch lever (6), which corresponds to the position of the lever (6) in the case of a short-circuited electrical circuit through the switch, the movable contact (3) 512) on the switch lever (51) held at a distance from the fixed contact (2), the longitudinal axis of the spring (7) passing past the pivot (30) of the movable contact (3) along the closer striking needle (43) of the trigger (4) said pivot point (30).
SI201000079A2010-03-082010-03-08Safety electric switch
SI23333B
(en)