Arrester with organic shell

The utility model discloses a lightning arrester with an organic shell, which is suitable for the overvoltage protection of electrical equipment such as line traps. An upper and a lower aluminium cushion blocks in an existing lightning arrester are eliminated, a flat spring and electrode sheets form an electric connection with an upper and a lower two terminals, an existing core envelop structure which is formed by the spiral winding of epoxy glass silk ribbons is replaced by a silicone rubber isolation medium layer, the problem that aluminium cushion blocks generate eddy currents and heat to influence the service life of valve sheets and shorten the usage time of the lightning arrester is eliminated, the core crazing of the lightning arrester is difficult to occur, and in addition, an upper end cover adopts a big creepage distance single skirt structure, and an existing multiple skirt silicone rubber outer sleeve is replaced by the single layer thermoplast outer sleeve and the big creepage distance single skirt structure. The utility model has the advantages of simple manufacture technology of the whole body, and low cost.