Claims (2)
Patentni zahtevkiPatent claims
1. Električno avtomatsko stikalo, ki je izvedeno iz ohišja (1), pri čemer je na enem koncu v ohišju (1) izvedena prva priključna sponka (2) za dovodni priključek varovanega tokokroga, na nasprotnem koncu pa druga priključna sponka (3) za odvodni priključek varovanega tokokroga, pri čemer je v ohišju (1) predvideno prvo stikalo (4), ki je električno povezano s tuljavo (17) in z drugo priključno sponko (3), in drugo stikalo (5), pri čemer je premični kontaktni mostiček (6) skupen za prvo (4) in drugo stikalo (5) in je drugi fiksni kontakt (10) na odklopni strani drugega stikala (5) vezan zaporedno na upor (12) in dalje na bimetal (13), pri čemer je bimetal (13) vezan na prvo priključno sponko tuljave (17), ki vsebuje udarno iglo (18), ki razklene pri nadtoku v tuljavi (17) prvo stikalo (4) in se povrne v prvotno lego pri odsotnosti nadtoka, pri čemer je v območju prvega (4) in drugega stikala (5) izveden nosilni element (7) premičnega kontaktnega mostička (6), pri čemer je navedeni nosilni element (7) zasukljivo uležajen v prvem vrtišču (20) in je hkrati oprt na prvo vzmet (21), ki sili nosilni element (7) proti drugemu stikalu (5), označeno s tem, da je na nosilnem elementu (7) izvedeno držalo (22) premičnega kontaktnega mostička (6), nadalje v njegovi bližini še prislon (25), na katerega je prislonjen zgornji krak (26) premičnega kontaktnega mostička (6) s silo, ki jo ustvaija druga vzmet (23), drugi naleg (27) za odmični del bimetala (13) in prijemališče (28) gumba (29) za ročno vklapljanje in izklapljanje stikala, s tem da je premični kontaktni mostiček (6) izveden v obliki križa, katerega zgornji krak (26) služi za pravilno pozicioniranje premičnega kontaktnega mostička (6) v vsakem stanju delovanja stikala, njegova prečna kraka (30) sta predvidena kot komplementarna kontakta prvemu (9) in drugemu fiksnemu kontaktu (10) drugega stikala (5) in je spodnji, najdaljši krak (15) premičnega kontaktnega mostička (6) predviden kot komplementarni kontakt tretjemu fiksnemu kontaktu (16) prvega stikala (4), in s tem, daje na udarni igli (18) v bližini ali znotraj tuljave (17) nameščena tretja vzmet (17a) in da je v jedru (17b) nameščen element (17c), prednostno kratkostični obroček za zagotavljanje stalnega magnetnega polja pri izmeničnem električnem toku v tuljavi (17).An electrically automatic switch made from a housing (1), wherein at the first end in the housing (1) there is a first connection terminal (2) for the supply connection of the protected circuit, and at the opposite end, the second connection terminal (3) for (1) is provided with a first switch (4) electrically connected to the coil (17) and the second terminal (3), and the second switch (5), wherein the movable contact means the bridge (6) is common to the first (4) and the second switch (5), and the second fixed contact (10) is connected in series to the resistor (12) on the disconnecting side of the second switch (5), and further on the bimetal (13) the bimetal (13) is connected to the first connecting terminal of the coil (17), which contains a punching needle (18) which disengages the first switch (4) at the overflow in the coil (17) and returns to the original position in the absence of an overflow, wherein a support element (7) of the movable contact bridge (6) is carried out in the region of the first (4) and the second switch (5) said supporting member (7) is pivotally supported in the first rotation (20) and is at the same time supported on the first spring (21), which forces the carrier element (7) towards the second switch (5), characterized in that on the carrier element (26) of the movable contact bridge (6) with the force created by the second spring (23) of the movable contact bridge (6), and further in the proximity thereof a stop (25) ), the second end (27) for the cam part (13) and the gripping device (28) for the manual switching of the switch, and the switching contact jumper (6) is made in the form of a cross whose upper leg ) serves for the proper positioning of the movable contact bridge (6) in each state of operation of the switch, its transverse arms (30) being provided as complementary contacts to the first (9) and the second fixed contact (10) of the second switch (5), and the lower, (15) of the movable contact bridge (6) (16) of the first switch (4), and in that the third spring (17a) is arranged on the impact pin (18) in the vicinity or inside the coil (17) and that the core (17b) is mounted in the core element (17c), preferably a short-circuiting ring for providing a permanent magnetic field at alternating current in the coil (17).
2. Električno kontaktno stikalo po zahtevku 1, označeno s tem, daje prislon (25) izveden s poševno naležno ploskvijo (25a), pri čemer nastopi zaradi nje zaporedna prekinitev najprej prvega od drugega fiksnega kontakta (10) in pripadajočega križnega kraka (30) premičnega kontaktnega mostička (6) in nato prvega fiksnega kontakta (9) in drugega oziroma pripadajočega križnega kraka (30) premičnega kontaktnega mostička (6).2. The electrical contact switch according to claim 1, characterized in that the stop (25) is provided with an oblique support surface (25a), whereby, consequently, a successive interruption of the first of the first fixed contact (10) and the associated crosspiece (30) a movable contact jumper (6) and then a first fixed contact (9) and a second or associated cross-arm (30) of the movable contact bridge (6).