Diode module

The invention discloses a diode module which comprises a left supporting stand column, a right supporting stand column, a lower pressing cross beam and an upper pressing cross beam. A diode valve group formed by connecting a plurality of cooling water bags and diodes in series is arranged between the lower pressing cross beam and the upper pressing cross beam; water inlet and outlet nozzles of thecooling water bags are connected with plastic water nozzles on the left support stand column and the right support stand column through plastic hoses; a diode belleville spring assembly and a prime gear transmission assembly are arranged on the upper pressing cross beam in parallel, the diode belleville spring assembly comprises a force transmission pressing rod, a driven gear pressing rod and transmission teeth, the prime gear transmission assembly comprises a rotating rod and a prime gear meshed with driven transmission teeth, and the number of teeth of the prime gear is smaller than that of transmission gears. The