Claims (6)
1. Tlačna sklopka (1), posebice prekidač tlaka ulja, koja kao kontaktne elemente ima kontaktnu pločicu (3) i kontaktni dio (2), kontaktni dio (2) ima barem jedno kontaktno područje koje nije u kontaktu s kontaktnom pločicom (3) u stanju bez djelovanja tlaka i koje jest u kontaktu s kontaktnom pločicom (3) kod unaprijed određenog tlaka medija, kontaktni dio (2) i kontaktna pločica (3) oblikovani su tako da sila pritiska kontaktnog područja kontaktnog dijela (2) na kontaktnu pločicu (3) ne prelazi unaprijed određenu vrijednost nezavisnu od tlaka medija, kontaktno područje kontaktnog dijela ima barem jednu kontaktnu izbočinu (5) koja je spojena na kraju elastične kontaktnog kraka (4), naznačeno time što, na svom početku, kontaktni krak (4) ima noseći kut (6) koji nije u doticaju s kontaktnom pločicom (3) u stanju bez djelovanja tlaka i jest u doticaju s kontaktnom pločicom (3) kod unaprijed određenog tlaka medija.1. The pressure switch (1), especially the oil pressure switch, which has a contact plate (3) and a contact part (2) as contact elements, the contact part (2) has at least one contact area that is not in contact with the contact plate (3) in a state without pressure and in contact with the contact plate (3) at a predetermined pressure of the medium, the contact part (2) and the contact plate (3) are designed so that the pressure force of the contact area of the contact part (2) on the contact plate ( 3) does not exceed a predetermined value independent of the pressure of the medium, the contact area of the contact part has at least one contact protrusion (5) which is connected to the end of the elastic contact arm (4), indicated by the fact that, at its beginning, the contact arm (4) has bearing corner (6) which is not in contact with the contact plate (3) in the state without pressure and is in contact with the contact plate (3) at a predetermined medium pressure.
2. Tlačna sklopka prema zahtjevu 1, naznačeno time što je unaprijed definirani tlak, od kojeg je noseći kut (6) u doticaju s kontaktnom pločicom (3), veći od unaprijed definiranog tlaka od kojeg je kontaktna izbočina (5) u doticaju s kontaktnom pločicom (3).2. Pressure switch according to claim 1, characterized in that the predefined pressure, at which the bearing corner (6) is in contact with the contact plate (3), is greater than the predefined pressure at which the contact protrusion (5) is in contact with the contact plate (3).
3. Tlačna sklopka prema bilo kojem od zahtjeva 1 i 2, naznačeno time što unaprijed definirani tlak, od kojeg je kontaktna izbočina (5) u doticaju s kontaktnom pločicom (3), nastaje iz svojstava materijala kontaktnog kraka (4) i kontaktnog dijela (2), geometrije kontaktnog kraka i savinute dužine kontaktnog kraka (4).3. Pressure switch according to any one of claims 1 and 2, indicated by the fact that the predefined pressure, from which the contact protrusion (5) is in contact with the contact plate (3), results from the properties of the material of the contact arm (4) and the contact part ( 2), the geometry of the contact arm and the bent length of the contact arm (4).
4. Tlačna sklopka prema jednom od zahtjeva 1 do 3, naznačeno time što kontaktni dio (2) ima više kontaktnih krakova (4).4. Pressure switch according to one of claims 1 to 3, characterized in that the contact part (2) has several contact arms (4).
5. Tlačna sklopka prema jednom od zahtjeva 1 do 4, naznačeno time što kontaktni dio (2) ima od dva do četiri, poželjno tri, kontaktna kraka (4).5. Pressure switch according to one of claims 1 to 4, characterized in that the contact part (2) has from two to four, preferably three, contact arms (4).
6. Tlačna sklopka prema jednom od prethodnih zahtjeva, naznačeno time što tlačna sklopka (1) ima čep (7), na kojem je kontaktni dio (2) spojen, i oprugu (8), čep (7) i opruga (8) su raspoređeni tako da čep (7) i kontaktni dio (2) budu smješteni na nižem zaustavnom položaju u stanju bez djelovanja tlaka i da se kreću u smjeru prema gornjem zaustavnom položaju kako tlak raste.6. Pressure switch according to one of the previous claims, characterized in that the pressure switch (1) has a plug (7), on which the contact part (2) is connected, and a spring (8), the plug (7) and the spring (8) are arranged so that the plug (7) and the contact part (2) are located at the lower stop position in the state without the effect of pressure and move in the direction towards the upper stop position as the pressure increases.