Refrigeration apparatus

Abstract

A refrigeration apparatus includes: a first cooling device that cools a first area of a storage chamber, a second cooling device that cools a second area of the storage chamber, and a controller that controls a cooling operation of the first cooling device and a cooling operation of the second cooling device, in which the controller shifts, by a specified time, a timing at which the cooling operation of the first cooling device is set to an OFF state and a timing at which the cooling operation of the second cooling device is set to the OFF state.

1 . A refrigeration apparatus, comprising:
 a first cooling device that cools a first area of a storage chamber;   a second cooling device that cools a second area of the storage chamber; and   a controller that controls a cooling operation of the first cooling device and a cooling operation of the second cooling device, wherein   the controller shifts, by a specified time, a timing at which the cooling operation of the first cooling device is set to an OFF state and a timing at which the cooling operation of the second cooling device is set to the OFF state.   
     
     
         2 . The refrigeration apparatus according to  claim 1 , wherein
 the first cooling device includes a first compressor for circulating a first refrigerant,   the second cooling device includes a second compressor for circulating a second refrigerant,   the controller sets the cooling operation of the first cooling device to the OFF state by setting the first compressor to the OFF state, and   the controller sets the cooling operation of the second cooling device to the OFF state by setting the second compressor to the OFF state.   
     
     
         3 . The refrigeration apparatus according to  claim 1 , wherein
 the first cooling device detects a temperature of the first area,   the second cooling device detects a temperature of the second area,   the controller sets, after setting a cooling operation of one cooling apparatus having a higher detected temperature between the first cooling device and the second cooling device, to an ON state, a cooling operation of the other cooling device having a lower detected temperature between the first cooling device and the second cooling device, to the ON state, and   the controller sets, after setting the cooling operation of the one cooling device to the OFF state, the cooling operation of the other cooling device to the OFF state.   
     
     
         4 . The refrigeration apparatus according to  claim 3 , wherein
 the controller sets, after setting the cooling operation of the one cooling device to the ON state, the cooling operation of the one cooling device to the OFF state in a case where a detected temperature of the one cooling device is equal to or lower than a first threshold.   
     
     
         5 . The refrigeration apparatus according to  claim 4 , wherein
 the controller sets the cooling operation of the other cooling device to the OFF state after the specified time has elapsed since the cooling operation of the one cooling device is set to the OFF state, the specified time being preset.   
     
     
         6 . The refrigeration apparatus according to  claim 3 , wherein
 the controller sets the cooling operation of the one cooling device to the ON state in a case where a detected temperature of the one cooling device is equal to or higher than a second threshold.   
     
     
         7 . The refrigeration apparatus according to  claim 1 , wherein
 the controller sets the cooling operation of the second cooling device to an ON state in a case where the cooling operation of the first cooling device is in the OFF state.   
     
     
         8 . The refrigeration apparatus according to  claim 1 , wherein
 the controller sets the cooling operation of the second cooling device to an ON state at a timing when setting the cooling operation of the first cooling device to the OFF state, and   the controller sets the cooling operation of the second cooling device to the OFF state at a timing when setting the cooling operation of the first cooling device to the ON state.   
     
     
         9 . The refrigeration apparatus according to  claim 2 , wherein
 the first compressor repeats a first cycle time including an ON state and the OFF state, under control of the controller, and   the second compressor repeats a second cycle time including the ON state and the OFF state, under the control of the controller, the second cycle time being equal to the first cycle time.   
     
     
         10 . The refrigeration apparatus according to  claim 1 , wherein
 the first cooling device includes: a first compressor for circulating a first refrigerant; a first cooling unit for cooling the storage chamber by the first refrigerant; and a first heater disposed around the first cooling unit,   the second cooling device includes: a second compressor for circulating a second refrigerant; a second cooling unit for cooling the storage chamber by the second refrigerant; and a second heater disposed around the second cooling unit, and   the controller drives the first heater in the OFF state of the first compressor, and drives the second heater in the OFF state of the second compressor.   
     
     
         11 . The refrigeration apparatus according to  claim 1 , wherein
 the first area is an area of a right half portion of the storage chamber, and   the second area is an area of a left half portion of the storage chamber.