Refrigeration device and cold water temperature control method for same

Abstract

Provided are a refrigeration device and a cold water temperature control method for same. The control method comprises the following steps: controlling a refrigeration device to enter a heat preservation state (S 1 ); detecting a water temperature in a water tank ( 10 ) in the refrigeration device (S 2 ); and if the water temperature is greater than a first pre-set temperature, controlling the refrigeration device to carry out a refrigeration operation for a pre-set time so that the water temperature is less than a second pre-set temperature, and controlling the refrigeration device to stop the refrigeration operation after the pre-set time (S 3 ), wherein the second pre-set temperature is less than or equal to the first pre-set temperature. The water temperature control is realized by means of a pre-set time, so that the temperature of cold water can be more precisely controlled.

What is claimed is: 
     
         1 . A method for controlling a cold water temperature of a refrigerating device, comprising:
 controlling the refrigerating device to enter into a thermal insulation state;   detecting a water temperature in a water tank of the refrigerating device;   when the water temperature is greater than a first predetermined temperature, controlling the refrigerating device to perform a refrigeration operation for a predetermined time period so as to enable the water temperature to be less than a second predetermined temperature, wherein the second predetermined temperature is less than or equal to the first predetermined temperature; and   controlling the refrigerating device to stop the refrigeration operation after the predetermined time period.   
     
     
         2 . The method according to  claim 1 , wherein, when the refrigerating device is operating for a first time, before controlling the refrigerating device to enter into the thermal insulation state, the method further comprises:
 controlling the refrigerating device to perform a refrigeration operation;   detecting the water temperature in the water tank; and   controlling the refrigerating device to stop the refrigeration operation when the water temperature is less than the second predetermined temperature.   
     
     
         3 . The method according to  claim 1 , wherein, when the refrigerating device is operating for a first time, before controlling the refrigerating device to enter into the thermal insulation state, the method further comprises:
 detecting an initial water temperature in the water tank of the refrigerating device; and   determining an initial operating time according to the initial water temperature, and controlling the refrigerating device to perform a refrigeration operation for the initial operating time, so as to enable the water temperature in the water tank to be less than the second predetermined temperature.   
     
     
         4 . The method according to  claim 3 , wherein, determining an initial operating time according to the initial water temperature comprises:
 determining the initial operating time according to a difference between the initial water temperature and the second predetermined temperature.   
     
     
         5 . The method according to  claim 1 , wherein, when the refrigerating device enters into a water usage state, the method further comprises:
 detecting the water temperature in the water tank;   controlling the refrigerating device to perform a refrigeration operation when the water temperature in the water tank is greater than a third predetermined temperature;   determining whether the water temperature is less than the second predetermined temperature, if yes, controlling the refrigerating device to stop the refrigeration operation and controlling the refrigerating device to enter into the thermal insulation state; wherein the third predetermined temperature is greater than or equal to the first predetermined temperature.   
     
     
         6 . A refrigerating device, comprising:
 a water tank;   a temperature detector, configured to detect a water temperature in the water tank; and   a controller configured to:
 control the refrigerating device to enter into a thermal insulation state; 
 acquire the water temperature in the water tank; 
 control the refrigerating device to perform a refrigeration operation for a predetermined time period when the water temperature is greater than a first predetermined temperature, so as to enable the water temperature to be less than a second predetermined temperature, wherein the second predetermined temperature is less than or equal to the first predetermined temperature; and 
 control the refrigerating device to stop the refrigeration operation after the predetermined time period. 
   
     
     
         7 . The refrigerating device according to  claim 6 , wherein, when the refrigerating device is operating for a first time, before controlling the refrigerating device to enter into the thermal insulation state, the controller is further configured to:
 control the refrigerating device to perform a refrigeration operation;   detect the water temperature in the water tank; and   control the refrigerating device to stop the refrigeration operation when the water temperature is less than the second predetermined temperature.   
     
     
         8 . The refrigerating device according to  claim 6 , wherein, when the refrigerating device is operating for a first time, before controlling the refrigerating device to enter into the thermal insulation state, the controller is further configured to:
 acquire an initial water temperature in the water tank;   determine an initial operating time according to the initial water temperature; and   control the refrigerating device to perform a refrigeration operation for the initial operating time, so as to enable the water temperature in the water tank to be less than the second predetermined temperature.   
     
     
         9 . The refrigerating device according to  claim 8 , wherein, the controller is configured to:
 determine the initial operating time according to a difference between the initial water temperature and the second predetermined temperature.   
     
     
         10 . The refrigerating device according to  claim 6 , wherein, when the refrigerating device enters into a water usage state, the controller is further configured to:
 acquire the water temperature in the water tank;   control the refrigerating device to perform a refrigeration operation when the water temperature in the water tank is greater than a third predetermined temperature;   determine whether the water temperature is less than the second predetermined temperature, if yes, control the refrigerating device to stop the refrigeration operation and control the refrigerating device to enter into the thermal insulation state; wherein the third predetermined temperature is greater than or equal to the first predetermined temperature.