Household appliance, system and method of controling household appliances

Abstract

A control system and a control method for controlling input voltages ( 1 ) for household appliances having at least one electric motor in their set of electric charges or devices ( 5 ). This control is made by means of a processing unit ( 3 ), which can act selectively and independently on a set of output switches ( 4 ) and, therefore, act in different ways on each of the devices ( 5 ).

1 .- 26 . (canceled) 
     
     
         27 . A control system for a refrigerator, the refrigerator comprising at least one door and the control system comprising:
 an input voltage ( 1 );   a processing unit ( 3 ) configured to detect the input voltage ( 1 ); and   a set of electric devices ( 5 ) having an operation voltage, the set of electric devices ( 5 ) comprising at least a deicing resistance ( 9 ), wherein:   the processing unit ( 3 ) is configured to turn off the deicing resistance ( 9 ) while the door of refrigerator is open if the processing unit ( 3 ) detects that the deicing resistance ( 9 ) is turned on upon opening of the refrigerator door, and   the processing unit ( 3 ) is further configured to turn on again the deicing resistance ( 9 ) when the refrigerator door is closed.   
     
     
         28 . A control system for a refrigerator according to  claim 27 , wherein the set of electric devices ( 5 ) further comprises a lamp ( 10 ), the processing unit ( 3 ) being configured to detect a drop in the operation voltage of the lamp ( 10 ) when the deicing resistance ( 9 ) is on. 
     
     
         29 . A control system for a refrigerator according to  claim 27 , further comprising a voltage-level sensor ( 6 ), which provides information about the input voltage ( 1 ), so that the processing unit ( 3 ) can be configured for conforming the input voltage ( 1 ) detected to the operation voltage of each of the set of electric devices. 
     
     
         30 . A control system for a refrigerator according to  claim 27 , wherein the processing unit ( 3 ) acts in a range of input voltage ( 1 ) from 90 V to 260 V. 
     
     
         31 . A control system for a refrigerator according to  claim 27 , wherein the processing unit ( 3 ) acts on a set of output switches ( 4 ) for conforming the input voltage ( 1 ) to an operation voltage of 90 V to 127 V on each of the set of electric devices ( 5 ). 
     
     
         32 . A control system for a refrigerator according to  claim 27  wherein the processing unit ( 3 ) is configured for managing the devices of the set of electric charges ( 5 ) according to a control interface ( 7 ) of the refrigerator. 
     
     
         33 . A control system a refrigerator according to  claim 27 , wherein the processing unit ( 3 ) is configured for managing the set of electric devices ( 5 ) by means of a control of phase of the input voltage ( 1 ). 
     
     
         34 . A control system for a refrigerator according to  claim 27 , wherein the processing unit ( 3 ) is configured for managing the devices of the set of electric devices ( 5 ) by controlling complete cycles of the input voltage ( 1 ). 
     
     
         35 . A control system for a refrigerator according to  claim 27 , characterized in that the processing unit ( 3 ) is configured for managing the devices of the set of electric devices ( 5 ) by pulse width modulation (PWM). 
     
     
         36 . A control system for a refrigerator according to  claim 27 , wherein the processing unit ( 3 ) uses voltage grader, converters with rectifiers, multipliers and/or voltage dividers. 
     
     
         37 . A control method for a refrigerator, the refrigerator comprising at least one door, a processing unit ( 3 ) configured to detect an input voltage ( 1 ) and a set of electric devices ( 5 ) having an operation voltage, the set of electric devices ( 5 ) comprising a deicing resistance ( 9 ), the control method comprising:
 turning off the deicing resistance ( 9 ) while the door of the refrigerator is open if the processing unit ( 3 ) detects that the deicing resistance ( 9 ) is turned on upon opening of the refrigerator door; and   turning on the deicing resistance ( 9 ) when the refrigerator door is closed.   
     
     
         38 . A control method for a refrigerator according to  claim 37 , wherein the set of electric devices also comprises a lamp ( 10 ), the control method further comprising detecting a drop in an operation voltage of the lamp ( 10 ) when the deicing resistance ( 9 ) is turned on. 
     
     
         39 . A control method for a refrigerator according to  claim 37 , further comprising the step of providing information about the input voltage ( 1 ), so that the processing unit ( 3 ) can be configured for conforming the input voltage ( 1 ) detected to the operation voltage of each of the devices of the set of electric devices ( 5 ). 
     
     
         40 . A control method for a refrigerator according to  claim 37  further comprising the step of acting on a set of output switches ( 4 ) for conforming the input voltage ( 1 ) to an operation voltage of 90 V to 127 V on each of the devices of the set of electric devices ( 5 ). 
     
     
         41 . A control method for a refrigerator according to  claim 37  further comprising managing the devices of the set of electric devices ( 5 ) according to a control interface ( 7 ) of the refrigerator. 
     
     
         42 . A control method for a refrigerator according to  claim 37  further comprising managing the devices of the set of electric devices ( 5 ) by means of a control of phase of the input voltage ( 1 ). 
     
     
         43 . A control method for a refrigerator according to  claim 37  further comprising managing the devices of the set of electric devices ( 5 ) by controlling complete cycles of the input voltage ( 1 ). 
     
     
         44 . A control method for a refrigerator according to  claim 37  further comprising managing of the devices of the set of electric devices ( 5 ) by pulse width modulation (PWM).