Patent ID: 6713971
Filing Date: 2004-03-30
Classification: F21S,F21V,H05B

Abstract:
A lamp string with an open-circuit-proof structure, comprising:a socket having a rectangular cavity for mounting a fuse assembly, and a rectangular cavity for plugging a bulb receptacle; both sides of said two rectangular cavities being furnished with two contact copper plates respectively; a fuse assembly mounted in a rectangular cavity in said socket, and including a fastening member designed in a rectangular shape, and two parallel slots, and a recess; and a fuse member having a positioning bead for fixing two parallel magnesium-plating filaments; a short section of said two parallel magnesium-plating filaments at one end of said positioning bead being wound with a fuse wire; a longer section of said two magnesium-plating filaments on other end of said positioning bead extended through two parallel slots of said fastening member, and then being bent along planes thereof; a bulb receptacle for mounting a bulb, and two magnesium-plating filaments of said bulb being bent and attached to two planes, and finally being plugged into a plug-connection cavity.