Gas-adjusting controlling device of fresh-keeping refrigerator

The invention relates to a device of a fresh-keeping refrigerator, in particular to a gas-adjusting controlling device of the fresh-keeping refrigerator. The gas-adjusting controlling device of the fresh-keeping refrigerator comprises a plurality of storage chambers for storing foods needed to be preserved and a nitrogen-oxygen separating device for supplying fresh-keeping gas to the storage chambers, and is characterized by also comprising a gas distribution device, a vacuum pump and a controller, wherein the vacuum pump is communicated with a fresh-keeping gas outlet of the nitrogen-oxygen separating device; the vacuum pump and the gas distribution device are controlled by the controller; the storage chambers are isolated from one another in a sealed mode, and provided with doors for sealing the storage chambers; each storage chamber is provided with an oxygen concentration sensor, a gas outlet and a gas inlet; the gas outlets of the storage chambers are communicated with a gas inlet the nitrogen-oxygen separating device through the gas distribution device; and the gas inlets of the storage chambers are communicated with a gas outlet of the vacuum pump through the gas distribution device. By the gas-adjusting controlling device of the fresh-keeping refrigerator, the fresh-keeping time is prolonged, the fresh-keeping quality is improved, the energy consumption is reduced, and the cross contamination of the foods is reduced.