Wind channel subassembly and refrigeration plant

The utility model discloses a wind channel subassembly and refrigeration plant. The wind channel subassembly includes front shroud, back shroud, foam assembly and fan, forming the air -out cavity between foam assembly and the back shroud, being provided with first air outlet on the front shroud, be provided with first return air inlet on the back shroud, set up intercommunication installation space's total air intake and total return air inlet on the back shroud, total air intake and air -out cavity intercommunication, fan are installed on total air intake, the total return air inlet of firstreturn air inlet intercommunication, be formed with the air supply passage of intercommunication air -out cavity among the foam assembly, still be formed with the intercommunication return air passageway of return air inlet always among the foam assembly, be provided with first air door among the air supply passage, still be provided with intercommunication air supply passage's second air outlet on the front shroud, still