Temperature control method for refrigerator
DCFirst Claim
1. A temperature control method for a refrigerator, comprising the steps of:
- calculating a door-opening time when a door-open and a door-close are detected during a cooling operation in which a temperature inside a refrigerating compartment is controlled between a positive limit temperature and a negative limit temperature determined according to a set temperature input by a user;
obtaining a reset temperature lower than said negative limit temperature in accordance with the door-opening time; and
executing a cooling operation until a temperature inside the refrigerating compartment reaches the reset temperature, such that a time in which a load temperature is equal to the set temperature is reduced.
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Abstract
A temperature control method for use in a refrigerator comprises a normal operation step for controlling a compressor and a fan to maintain a temperature inside a refrigerating compartment between a positive limit temperature and a negative limit temperature, both derived from a set temperature input by a user; a door-open control step for stopping the fan when a door-open is detected; a reset temperature setting step for setting a reset temperature based on said door-opening time; and a reset temperature operation step for executing a cooling operating by driving a compressor and a fan until the temperature inside the refrigerating compartment decreases to the reset temperature, lower than the set temperature, if it is detected during the normal operating that the reset temperature has been reset. The method enhances the refrigerating efficiency of a refrigerator by promptly restoring the temperature of food contained in the refrigerating compartment which has risen by external air flowing into the refrigerating compartment as a result of an open door.
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Citations
8 Claims
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1. A temperature control method for a refrigerator, comprising the steps of:
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calculating a door-opening time when a door-open and a door-close are detected during a cooling operation in which a temperature inside a refrigerating compartment is controlled between a positive limit temperature and a negative limit temperature determined according to a set temperature input by a user; obtaining a reset temperature lower than said negative limit temperature in accordance with the door-opening time; and executing a cooling operation until a temperature inside the refrigerating compartment reaches the reset temperature, such that a time in which a load temperature is equal to the set temperature is reduced.
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2. A temperature control method for a refrigerator, comprising the steps of:
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(a) controlling a compressor and a fan to maintain a temperature inside a refrigerating compartment between a positive limit temperature and a negative limit temperature, both derived from a set temperature input by a user; (b) stopping the fan when a door-open is detected and calculating a door-opening time until a door-close is detected; (c) setting a reset temperature, lower than the set temperature, based on said door-opening time; and (d) executing a cooling operation by driving the compressor and the fan until a temperature inside the refrigerating compartment reaches the reset temperature, if a reset temperature has been set. - View Dependent Claims (3, 4, 5, 6, 7)
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8. A temperature control method for a refrigerator, comprising the steps of:
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setting a positive limit temperature and a negative limit temperature derived form a set temperature input by a user, and a cooling operation flag and a temperature resetting flag; cooling a temperature inside a refrigerating compartment until the temperature inside the refrigerating compartment reaches the negative limit temperature by driving a compressor and a fan; calculating a door-opening time when a door-open and a door-close are detected; determining and setting a reset temperature depending on the door-opening time, wherein the resetting temperature is lower than the negative limit temperature; cooling the refrigerating compartment, when it is detected that the reset temperature has been set, until the temperature inside the refrigerating compartment reaches the reset temperature; and comparing the temperature inside the refrigerating compartment with the positive limit temperature to determine when to restart cooling of the compartment during a cooling stop state in which the temperature inside the refrigerating compartment is increasing after the temperature inside the refrigerating compartment has already reached the negative limit temperature or the reset temperature.
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Specification