Fuse

Abstract

A kind of fuse, comprising, outer cartridge body with both open ends, inner cartridge body with both open ends and provided inside the said outer cartridge body, fuse core provided inside the said inner cartridge body, left and right inner copper bushes provided at and covering both ends of the said outer cartridge body, left and right outer copper bushes provided at and covering the said inner copper bushes and both ends of the said outer cartridge body; Wherein, one end of the said inner copper bush is the first open end, and the other end is the first closed end, the end face of the said first closed end has the first opening; preferably, the said first open end and the said outer cartridge body form interference fit connect through punching. End of the said fuse core extends and passes through the said first opening, and is preferably fixed to the end face of the said first closed end through spot welding. One end of the said outer copper bush is the open end, the other end is the closed end. Preferably, through pressing, the open end of the said outer copper bush and the said first closed end and/or the said outer cartridge body form interference fit joint.

Dependencies are inferred from the claim text.