Fuel cell system and electric pile assembly thereof

The utility model discloses an electric pile assembly which comprises a sleeve shell with an inner cavity, an electric core is arranged in the inner cavity, a reference end plate is packaged at one end of the sleeve shell in an aligned manner, an assembly end plate is packaged at the other end of the sleeve shell in an aligned manner, a floating end plate is movably arranged in the inner cavity, and the electric core is embedded between the reference end plate and the floating end plate; a connector capable of stretching out and drawing back in the axial direction of the connector is embedded between the floating end plate and the assembling end plate, the outer end of the connector and the assembling end plate are matched in an end face sealing mode, the inner end of the connector and the floating end plate are matched in an end face sealing mode, and the inner end of the connector is connected with the floating end plate in a linkage mode. The joint of the galvanic pile assembly does not move synchronously