Refrigerator control method and system with inverter compressor
First Claim
1. A control method of a refrigerator adopting an inverter compressor, comprising:
- calculating a total cooling amount needed by a compartment to be cooled within a unit time;
taking the total cooling amount as a first power of the inverter compressor and calculating a first frequency of the inverter compressor operating at the first power; and
controlling the inverter compressor to operate at the first frequency;
wherein the control method further comprises a method for determining the compartment to be cooled which is;
monitoring the compartment temperature T in each compartment;
comparing the compartment temperature in the compartment to a preset compartment temperature threshold T0 corresponding to each compartment; and
if the compartment temperature T is greater than the corresponding preset compartment temperature threshold T0, then deeming that the compartment needs to be cooled; and
if the compartment temperature T is less than or equal to the corresponding preset compartment temperature threshold T0, then deeming that the compartment does not need to be cooled;
monitoring whether the compartment to be cooled has changed; and
if yes, then recalculating the total cooling amount needed by the compartment to be cooled within the unit time, taking the current total cooling amount as a second power of the inverter compressor, calculating a second frequency of the inverter compressor operating at the second power, and controlling the inverter compressor to operate at the second frequency; and
if not, then controlling the inverter compressor to continue operating at the first frequency;
after the inverter compressor has operated for a predetermined period of time, recalculating the total cooling amount needed by the compartment to be cooled within the unit time;
taking the current total cooling amount as a third power of the inverter compressor and calculating a third frequency of the inverter compressor operating at the third power;
controlling the inverter compressor to operate at the third frequency; and
repeating the recalculation of the total cooling amount at every time when the inverter compressor operates at the third frequency for the predetermined period of time, and updating the third frequency based on the repeated recalculation of the total cooling amount, the third frequency being less than the first frequency.
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Accused Products
Abstract
A control method and control system of a refrigerator with an inverter compressor. The control method includes: calculating the total cooling amount needed by a compartment to be cooled within a unit time; taking the total cooling amount as a first power of the inverter compressor and calculating a first frequency of the inverter compressor operating at the first power; and controlling the inverter compressor to operate at the first frequency. The present invention effectively controls the power consumption amount while satisfying the refrigerator cooling condition by calculating the total cooling amount needed by a refrigerator compartment within a unit time and adjusting the frequency of the inverter compressor.
7 Citations
8 Claims
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1. A control method of a refrigerator adopting an inverter compressor, comprising:
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calculating a total cooling amount needed by a compartment to be cooled within a unit time; taking the total cooling amount as a first power of the inverter compressor and calculating a first frequency of the inverter compressor operating at the first power; and controlling the inverter compressor to operate at the first frequency; wherein the control method further comprises a method for determining the compartment to be cooled which is; monitoring the compartment temperature T in each compartment; comparing the compartment temperature in the compartment to a preset compartment temperature threshold T0 corresponding to each compartment; and if the compartment temperature T is greater than the corresponding preset compartment temperature threshold T0, then deeming that the compartment needs to be cooled; and
if the compartment temperature T is less than or equal to the corresponding preset compartment temperature threshold T0, then deeming that the compartment does not need to be cooled;monitoring whether the compartment to be cooled has changed; and if yes, then recalculating the total cooling amount needed by the compartment to be cooled within the unit time, taking the current total cooling amount as a second power of the inverter compressor, calculating a second frequency of the inverter compressor operating at the second power, and controlling the inverter compressor to operate at the second frequency; and
if not, then controlling the inverter compressor to continue operating at the first frequency;after the inverter compressor has operated for a predetermined period of time, recalculating the total cooling amount needed by the compartment to be cooled within the unit time; taking the current total cooling amount as a third power of the inverter compressor and calculating a third frequency of the inverter compressor operating at the third power; controlling the inverter compressor to operate at the third frequency; and repeating the recalculation of the total cooling amount at every time when the inverter compressor operates at the third frequency for the predetermined period of time, and updating the third frequency based on the repeated recalculation of the total cooling amount, the third frequency being less than the first frequency. - View Dependent Claims (2, 3, 4)
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5. A control system of a refrigerator adopting an inverter compressor, comprising:
- a temperature monitoring device and a main control board connected to the temperature monitoring device, wherein;
the temperature monitoring device comprises; a first temperature monitoring device provided external to the refrigerator for monitoring an operating ambient temperature of the refrigerator and a plurality of second temperature monitoring devices respectively provided in compartments of the refrigerator for monitoring compartment temperatures in the compartments; and the main control board is configured for; calculating a total cooling amount needed by a compartment to be cooled within a unit time; taking the total cooling amount as a first power of the inverter compressor and calculating a first frequency of the inverter compressor operating at the first power; controlling the inverter compressor to operate at the first frequency; comparing the compartment temperature in the compartment to a preset compartment temperature threshold T0 corresponding to each compartment; and if the compartment temperature T is greater than the corresponding preset compartment temperature threshold T0, then deeming that the compartment needs to be cooled; and
if the compartment temperature T is less than or equal to the corresponding preset compartment temperature threshold T0, then deeming that the compartment does not need to be cooled;monitoring whether the compartment to be cooled has changed; if yes, then recalculating the total cooling amount needed by the compartment to be cooled within the unit time, taking the current total cooling amount as a second power of the inverter compressor, calculating a second frequency of the inverter compressor operating at the second power, and controlling the inverter compressor to operate at the second frequency; and
if not, then controlling the inverter compressor to continue operating at the first frequency;after the inverter compressor has operated for a predetermined period of time, recalculating the total cooling amount needed by the compartment to be cooled within the unit time; taking the current total cooling amount as a third power of the inverter compressor and calculating a third frequency of the inverter compressor operating at the third power; controlling the inverter compressor to operate at the third frequency; and repeating the recalculation of the total cooling amount at every time when the inverter compressor operates at the third frequency for the predetermined period of time, and updating the third frequency based on the repeated recalculation of the total cooling amount; the third frequency being less than the first frequency. - View Dependent Claims (6, 7, 8)
- a temperature monitoring device and a main control board connected to the temperature monitoring device, wherein;
Specification