UPWARDS BENDING SUPPORTING DISK FOR SEALING GALVANIC CELLS Russian patent published in 1999 - IPC

FIELD: electrical engineering. SUBSTANCE: metal disk has central round platform joined with external sealing edge of sealing flange through annular bending arrangement that ensures displacement in radial direction inward and outward of sealing edge when galvanic cell is radially flanged out for its sealing. Edge flanging out also displaces central section of disk upwards which imparts upward force to terminal. Bending arrangement is essentially a number of three annular bent ribs; first and third ribs are bent downwards and second one, upwards. Ring goes radially upward at certain angle to first rib and joins first rib with second one thereby preventing plastic strain of disk seal. EFFECT: improved safety of seal within wide temperature range; improved reliability of plate-to- terminal contact. 33 cl, 4 dwg