Apparatus for automatically drying and method for controlling the same
First Claim
1. A controlling method of an automatic drying apparatus, comprising:
- reading an output voltage of a humidity sensor after a drying process is started;
classifying a load that includes one or more drying objects into a first group or a second group based on a weight of the load, wherein a load classified into the first group is assigned a first dryness determination value and a load classified in the second group has a second dryness determination value different from the first dryness determination value, the loads in the first and second groups having different weights, andwherein the weight of the load is classified into the first group or second group is determined based on at least one of;
a) a time elapsed from a starting point of the drying process to a point where an output voltage value of the humidity sensor at least substantially equals a minimum value, orb) a level of the minimum voltage value output from the humidity sensor after the drying is started;
calculating a difference between a present voltage value and the minimum voltage value in a) or b) output from the humidity sensor;
determining a voltage change amount based on a result of said calculation;
comparing the voltage change amount with the first dryness determination value or second dryness determination value to determine a dryness of the load, the voltage change amount compared to the first dryness determination value when the load is classified into the first group and compared to the second dryness determination value when the load is classified into the second group; and
finishing the drying process when the voltage change amount at least substantially equals or falls within a range that includes the first dryness determination value or the second dryness determination value corresponding to the first group or the second group into which the load is classified, wherein at least one of said reading, classifying, calculating, determining, comparing or finishing is performed by a controller.
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Abstract
An automatic drying apparatus and a method of controlling the same is disclosed, enabling exact drying by using a humidity sensor (37) provided at a location having a stabilized output characteristic for automatic drying, the automatic drying apparatus including a heating apparatus (31) for heating air supplied into a drum into which a drying object is introduced, a fan (32) for forcibly drawing air into the drum; and a humidity sensor (37) provided between the fan (32) and the heating apparatus (37) such that a sensing surface is positioned to be parallel to a flowing direction of air passed through the fan (32), for outputting a sensing voltage value for determining dryness of the drying object.
133 Citations
10 Claims
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1. A controlling method of an automatic drying apparatus, comprising:
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reading an output voltage of a humidity sensor after a drying process is started; classifying a load that includes one or more drying objects into a first group or a second group based on a weight of the load, wherein a load classified into the first group is assigned a first dryness determination value and a load classified in the second group has a second dryness determination value different from the first dryness determination value, the loads in the first and second groups having different weights, and wherein the weight of the load is classified into the first group or second group is determined based on at least one of; a) a time elapsed from a starting point of the drying process to a point where an output voltage value of the humidity sensor at least substantially equals a minimum value, or b) a level of the minimum voltage value output from the humidity sensor after the drying is started; calculating a difference between a present voltage value and the minimum voltage value in a) or b) output from the humidity sensor; determining a voltage change amount based on a result of said calculation; comparing the voltage change amount with the first dryness determination value or second dryness determination value to determine a dryness of the load, the voltage change amount compared to the first dryness determination value when the load is classified into the first group and compared to the second dryness determination value when the load is classified into the second group; and finishing the drying process when the voltage change amount at least substantially equals or falls within a range that includes the first dryness determination value or the second dryness determination value corresponding to the first group or the second group into which the load is classified, wherein at least one of said reading, classifying, calculating, determining, comparing or finishing is performed by a controller. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification