Method for controlling opening/closing of cool air discharge ports of a refrigerator
First Claim
1. A method for controlling an operation for opening/closing cool air discharge ports of a refrigerator, said refrigerator having an opening/closing member for opening/closing the cool air discharge ports for supplying a cooling compartment with cool air and a motor for driving said opening/closing member, said method comprising the steps of:
- measuring temperatures at a plurality of positions in said cooling compartment;
calculating a temperature difference between the measured temperatures; and
controlling said motor so that said opening/closing member repeats to open and close the cool air discharge ports when the temperature difference is greater than a predetermined value.
1 Assignment
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Accused Products
Abstract
A method for controlling opening/closing of cool air discharge ports of a refrigerator is disclosed. The refrigerator has a device for opening/closing the ports. The device has a member for opening/closing the ports, and a motor for driving the member. A microcomputer measures temperatures at positions in a cooling compartment, and calculates a difference between the measured temperatures. When the difference is more than a predetermined value, the motor is driven so that the member repeats opening and closing of the ports. Then, the circulation effect of the cool air in the cooling compartment is enhanced, and the temperature in the cooling compartment maintained uniform.
11 Citations
7 Claims
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1. A method for controlling an operation for opening/closing cool air discharge ports of a refrigerator, said refrigerator having an opening/closing member for opening/closing the cool air discharge ports for supplying a cooling compartment with cool air and a motor for driving said opening/closing member, said method comprising the steps of:
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measuring temperatures at a plurality of positions in said cooling compartment; calculating a temperature difference between the measured temperatures; and controlling said motor so that said opening/closing member repeats to open and close the cool air discharge ports when the temperature difference is greater than a predetermined value. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for controlling an operation for opening/closing cool air discharge ports of a refrigerator, said refrigerator having a compressor for compressing refrigerant, an evaporator generating cool air when said compressor operates, a fan for blowing the cool air generated by said evaporator, an opening/closing member for opening/closing the cool air discharge ports through which the cool air blown by said fan is supplied into a cooling compartment, and a motor for driving said opening/closing member, said method comprising the steps of:
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measuring temperatures at a plurality of positions in said cooling compartment; calculating an average value of the measured temperatures; driving said compressor and said fan when the average value is higher than a set temperature which corresponds to a cooling intensity preset by a user, and stopping operation of said compressor and said fan when the average value is lower than the set temperature; calculating a temperature difference between the measured temperatures during the operation of said compressor and said fan; and controlling said motor so that said opening/closing member repeats to open and close the cool air discharge ports when the temperature difference is greater than a predetermined value, and so that the higher the average temperature is, the greater an open degree of the cool air discharge ports becomes.
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Specification