Energy saver cycle

Abstract

Embodiments are related to a drying procedure and a household appliance for drying textile items, and more particularly to a dryer using controls based on a processor in order to control the drying operation making an efficient use of the heat source (electrical or gas), evaluating various parameters as temperature, time and humidity level in predetermined ranges.

1 . A drying procedure comprising the stages of:
 determining the type of drying, the drying level, which can vary between high, medium, low or very low; determining the values for load size, humidity level, resistance of the garments to friction and heat and, based on these, setting the values for “target voltage”, “minimum drying time”, “target drying time”, “multiplier” and “aggregate”; verifying if the filtered voltage is greater than the target voltage, in this case sparked the drying cycle turning down the heaters until the heat range previously established in the drying level is reached during, at least, the minimum previously established time; After the minimum time has elapsed, the additional time is calculated by means of a previously established function which is determined based on the heat level determined; Comparing the additional time against the time to reach the target voltage (Trtv), and using the highest time of those; turning off the heaters and starting the cooling period; determining if the elapsed time is greater than the total target drying time; in case that the elapsed time is greater than the drying time, finish the drying cycle; in case that the elapsed time is less, adding a second determined additional time by means of a previously established function, different from the function for determining the first additional time; when the total target drying time is reached, finish the drying cycle; which is characterized by including “restart temperature” and “cutoff temperature” values that determined based on the given temperature level and by including additional steps in order to achieve energy savings before the “turn off the heaters and start the cooling period” stage;   the steps for achieving the energy savings are:   evaluating the current temperature and based on it determining if the heaters must remain turned off or the percentage of them which must be turned on; evaluating if the target voltage has been reached; when the target voltage is reached, continue with the corresponding stage of the drying cycle.   
     
     
         2 . The drying procedure of  claim 1 , wherein while evaluating the current voltage, it has not reached the target voltage, which comprises the additional step of evaluating if the current temperature is less than the restart temperature or greater than the cutoff temperature. 
     
     
         3 . The drying procedure of  claim 2 , wherein while evaluating if the current temperature in relation to the restart and cutoff temperatures it is determined if the heaters must remain turned off or turned on. 
     
     
         4 . The drying procedure of  claim 1 , wherein while evaluating that coverage temperature this is less than the restart temperature, and as a consequence at least one of the heaters is turned on in a percentage that could be from 1% to 100% of the total power. 
     
     
         5 . A drying procedure in a household appliance which comprises a) a drum for containing the textile garments to be dried, humidity sensor bars, at least one heater and one controller circuit, where the method comprises the stages of:
 with the help of the controller circuit, determining the type of drying, the drying level, which can vary between high, medium, low or very low; determining the values for load size, humidity level with the help of the sensor bars, resistance of the garments to friction and heat, and based on these establishing the values for “target voltage”, “minimum drying time”, “target drying time”, “multiplier” and “aggregate”; verifying if the filtered to voltage is greater than the target voltage, in this case start the drying cycle turning on at least one heater until the previously established and needed heat range is reached in the rotating drum at the drying level, during at least, the minimum previously established time; after the minimum time has elapsed, the controlling circuit calculates the additional time by means of a previously established function which is determined based on the level of heat determined; comparing the additional time against the time needed for reaching the target voltage (Trtv), and using the higher time of those; turning off the at least one heater and starting the cooling period; Determining if the elapsed time is less than the total drying target time; in case that the elapsed time is greater than the target drying time, finish the drying cycle; in case that the elapsed time is less, add a second determined additional time by means of a previously established function, different from the function used for data mining the first additional time; when the total target drying time is reached, finish the drying cycle; the drying procedure is characterized by including values for “restart temperature” and “cutoff temperature” determined based on the given temperature level, and by including additional steps in order to achieve energy savings before the “Turn off the heater or heaters and start the cooling period”;   the steps for achieving the energy savings are:   evaluating the current temperature within the rotating drum and based on it determining if the heater or heaters must remain turned off or the percentage of them which must be turned on in order to maintain the rotating drum at an evaporation temperature; evaluating if the target voltage has been reached; when the target voltage is reached, continue with the corresponding stage of the drying cycle.   
     
     
         6 . The drying procedure in a household appliance of  claim 5 , wherein if while evaluating the current voltage, it has not reached the target voltage, which comprises the additional step of evaluating if the current temperature is less than the restart temperature or greater than the cutoff temperature. 
     
     
         7 . The drying procedure in a household appliance of  claim 6 , wherein while evaluating if the current temperature in relation to the restart and cutoff temperatures it is determined if the heaters must remain turned off or turned on. 
     
     
         8 . The drying procedure in a household appliance of  claim 5 , wherein while evaluating that coverage temperature this is less than the restart temperature, and as a consequence at least one of the heaters is turned on in a percentage that could be from 1% to 100% of the total power of the household appliance. 
     
     
         9 . A drying apparatus comprising: a) a drum for containing textile garments to be dried, humidity sensor bars, at least one heater and a drying controller circuit, characterized by the drying circuit being configured to determine a temperature and a drying time as a function of the textile garments load to be dried, determining an additional drying time and an energy saving percentage as a function of the evaporation temperature of the rotating drum, where the at least one heater is configured and controlled by the controller circuit in order to provide heating power percentages for a predetermined time for maintaining the temperature of the rotary drum within an evaporation temperature range which allows saving energy during the determined time period.