Control device, program, control method of refrigerator, and refrigerator

Abstract

A control device that controls a compressor and an in-refrigerator fan to circulate cool air in a refrigerator including first and second storage compartments, includes a controller that controls a rotational speed of the compressor and the in-refrigerator fan based on an outside air temperature of the refrigerator, and a calculator that calculates an average internal temperature of the second storage compartment during one cycle from when the compressor stops an operation until when the compressor stops a next operation. The controller controls an operation and stoppage of the compressor based on an internal temperature of the first storage compartment and corrects the rotational speed of the in-refrigerator fan when the compressor operates during a next cycle based on a comparison result between the average temperature and a threshold.

1 - 10 . (canceled) 
     
     
         11 . A control device that controls, in a refrigerator including a first storage compartment and a second storage compartment, a compressor and an in-refrigerator fan to circulate cool air in the refrigerator, the control device comprising:
 a controller that controls a rotational speed of each of the compressor and the in-refrigerator fan based on an outside air temperature of the refrigerator; and   a calculator that calculates an average internal temperature of the second storage compartment during one cycle from when the compressor stops an operation until when the compressor stops a next operation; wherein   the controller controls an operation and stoppage of the compressor based on an internal temperature of the first storage compartment and corrects the rotational speed of the in-refrigerator fan when the compressor operates during a next cycle based on a comparison result between the average internal temperature and a threshold.   
     
     
         12 . The control device according to  claim 11 , wherein the controller corrects the rotational speed of the in-refrigerator fan when the compressor operates during the next cycle from a reference rotational speed which is determined according to the rotational speed of the compressor, based on the comparison result between the average temperature and the threshold. 
     
     
         13 . The control device according to  claim 11 , wherein, in a case where the rotational speed of the compressor is changed based on the outside air temperature, the controller maintains the rotational speed of the in-refrigerator fan when the compressor operates during the next cycle as a reference rotational speed which is determined according to the rotational speed of the compressor. 
     
     
         14 . The control device according to  claim 12 , wherein, in a case where the first storage compartment is a freezer compartment and the second storage compartment is a refrigerator compartment, the controller decreases the rotational speed of the in-refrigerator fan when the compressor operates during the next cycle to a value lower than the reference rotational speed in a case where the average temperature is lower than a first threshold, and the controller increases the rotational speed of the in-refrigerator fan when the compressor operates during the next cycle to a value higher than the reference rotational speed in a case where the average temperature is higher than the second threshold larger than the first threshold. 
     
     
         15 . The control device according to  claim 14 , wherein, even in a case where the average temperature is higher than or equal to the first threshold and is lower than or equal to the second threshold, when the outside air temperature increases, the controller increases the rotational speed of the in-refrigerator fan when the compressor operates during the next cycle to a value higher than the reference rotational speed. 
     
     
         16 . The control device according to  claim 14 , wherein, even in a case where the average temperature is higher than or equal to the first threshold and is lower than or equal to the second threshold, when the outside air temperature decreases, the controller decreases the rotational speed of the in-refrigerator fan when the compressor operates during the next cycle to a value lower than the reference rotational speed. 
     
     
         17 . The control device according to  claim 12 , wherein, in a case where the first storage compartment is a refrigerator compartment and the second storage compartment is a freezer compartment, the controller increases the rotational speed of the in-refrigerator fan when the compressor operates during the next cycle to a value higher than the reference rotational speed in a case where the average temperature is lower than the first threshold, and the controller decreases the rotational speed of the in-refrigerator fan when the compressor operates during the next cycle to a value lower than the reference rotational speed in a case where the average temperature is higher than the first threshold and is higher than the second threshold. 
     
     
         18 . A non-transitory computer-readable medium including a program that causes a computer to function as the control device according to  claim 11 . 
     
     
         19 . A control method of controlling, in a refrigerator including a first storage compartment and a second storage compartment, a compressor and an in-refrigerator fan to circulate cool air in the refrigerator, the method comprising:
 a control process of causing a process core to control a rotational speed of each of the compressor and the in-refrigerator fan based on an outside air temperature of the refrigerator; and   a calculation process of causing a process core to calculate an average internal temperature of the second storage compartment during one cycle from when the compressor stops an operation until when the compressor stops a next operation; wherein   in the control process, the processor core controls an operation and stoppage of the compressor based on an internal temperature of the first storage compartment and corrects the rotational speed of the in-refrigerator fan when the compressor operates during a next cycle based on a comparison result between the average temperature and a threshold.   
     
     
         20 . A refrigerator comprising:
 a first storage compartment;   a second storage compartment;   a first storage compartment temperature sensor that measures an internal temperature of the first storage compartment;   a second storage compartment temperature sensor that measures an internal temperature of the second storage compartment;   an outside air temperature sensor that measures an outside air temperature of the refrigerator;   a compressor that circulates a cooling medium;   an evaporator that generates cool air by vaporizing the cooling medium;   an in-refrigerator fan that circulates the cool air in the refrigerator; and   the control device according to  claim 11 .