Train power supply unit

The utility model discloses a train power supply unit, the intelligent cabinet temperature adjusting device comprises a cabinet body, the bottom horizontal installation of the cabinet body has the framework, be provided with filtering component in the framework, filtering component includes that two tube sheet and polyliths to relative setting set up the S -shaped board between two tube sheets side by side, forms S -shaped wind channel from top to bottom between the adjacent S -shaped board, the S -shaped board is gone to court down and is provided with more than one fender dirt hook, keep off the dirt hook with form the ji chenqu that open side down between the S -shaped board. The utility model discloses an advantages such as train power supply unit has simple structure, can prevent that dust sleet suck -back from going into in the cabinet.