Precise temperature control structure for refrigerating chamber of refrigerator

The utility model discloses a precise temperature control structure for a refrigerating chamber of a refrigerator, which comprises a main body unit, the main body unit comprises a refrigerating chamber back shell and a mounting base plate fixedly mounted in the refrigerating chamber back shell, and a refrigerator and a grating window are fixedly mounted at the lower part of the refrigerating chamber back shell; and the precise temperature control unit comprises a centrifugal fan fixedly installed on the installation base plate and a first air outlet channel and a second air outlet channel which are arranged on the installation base plate, air doors are fixedly installed at the communicating positions of the first air outlet channel and the centrifugal fan and the communicating positions of the second air outlet channel and the centrifugal fan, and multiple sets of air nozzles arranged in a forked mode are formed in the end, away from the air doors, of the second air outlet channel. The air volume of the drawe