Unify refrigerating system when two standards input power

The utility model discloses an unify refrigerating system when two standards input power, including refrigerating system, dc motor, ac motor, automatically controlled board and power standard screening circuit, dc motor and ac motor are connected with refrigerating system's compressor transmission respectively, and automatically controlled board is connected with DC power supply power supply loopon the one hand respectively and exchanges power power supply loop, and on the other hand is connected with dc motor and ac motor respectively, power standard screening circuit is including first relay and second relay, and the normally opened contact series of first relay connects in parallel in DC power supply power supply loop after the normally closed contact of the coil of first relay and second relay establishes ties mutually in DC power supply power supply loop, and the coil of second relay connects in parallel in interchange power power supply loop. The utility model discloses can unify refrigerating system an