Air conditioner and method of controlling the same
First Claim
1. An air conditioner comprising:
- an outside unit having a compressor and an evaporator;
an outside temperature sensor attached to the outside unit to sense an outside temperature;
an outside humidity sensor to sense an outside humidity;
a low pressure sensor to sense an evaporation pressure of the evaporator; and
a controller configured to control operation of the compressor based on the sensed outside temperature, outside humidity, and low pressure by adjusting an operation frequency of the compressor such that;
the operation frequency of the compressor is decreased by a value corresponding to a first predetermined pressure when the evaporation pressure is less than a first reference low pressure,the operation frequency of the compressor is maintained when the evaporation pressure is greater than or equal to the first reference low pressure and is less than or equal to a second reference low pressure, andthe operation frequency of the compressor is increased when the evaporation pressure is greater than or equal to the second reference low pressure and is less than or equal to a third reference low pressure;
wherein the controller is further configured such that, in response to the sensed outside humidity increasing from between a first predetermined outside humidity and a second outside humidity to an outside humidity greater than both the first predetermined outside humidity and the second predetermined outside humidity, the controller decreases the rate at which the operation frequency of the compressor is increased.
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Accused Products
Abstract
An air conditioner including an outside unit, which includes a compressor and an evaporator, an outside temperature sensor attached to the outside unit to sense outside temperature, an outside humidity recognition part attached to the outside unit to recognize information about outside humidity, a low pressure sensor that senses an evaporation pressure of the evaporator, and a control part that controls an operation of the compressor, based on both information about dew-point temperature sensed from the outside temperature sensor and the outside humidity recognition part and information about the evaporation pressure sensed from the low pressure sensor. The control part changes an operation frequency of the compressor according to whether the evaporation pressure is not lower than a preset reference low pressure, to prevent frosting of the evaporator.
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Citations
10 Claims
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1. An air conditioner comprising:
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an outside unit having a compressor and an evaporator; an outside temperature sensor attached to the outside unit to sense an outside temperature; an outside humidity sensor to sense an outside humidity; a low pressure sensor to sense an evaporation pressure of the evaporator; and a controller configured to control operation of the compressor based on the sensed outside temperature, outside humidity, and low pressure by adjusting an operation frequency of the compressor such that; the operation frequency of the compressor is decreased by a value corresponding to a first predetermined pressure when the evaporation pressure is less than a first reference low pressure, the operation frequency of the compressor is maintained when the evaporation pressure is greater than or equal to the first reference low pressure and is less than or equal to a second reference low pressure, and the operation frequency of the compressor is increased when the evaporation pressure is greater than or equal to the second reference low pressure and is less than or equal to a third reference low pressure; wherein the controller is further configured such that, in response to the sensed outside humidity increasing from between a first predetermined outside humidity and a second outside humidity to an outside humidity greater than both the first predetermined outside humidity and the second predetermined outside humidity, the controller decreases the rate at which the operation frequency of the compressor is increased. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification