Spin-drying controlling method for drum washer

Abstract

In a dehydration control method of a drum washing machine capable of improving reliability of eccentricity sensing by sensing not only forward eccentricity but also diagonal eccentricity by performing eccentricity sensing at a low speed and a high speed respectively, the method includes a first step for accelerating a drum to a first rotational speed when a uniforming process is finished; a second step for measuring first eccentricity when the rotational speed of the drum reaches the first rotational speed; a third step for comparing the measured first eccentricity with a preset first reference eccentricity; a fourth step for storing the measured first eccentricity when the measured first eccentricity is less than the preset first reference eccentricity in the third step; a fifth step for accelerating the rotational speed of the drum to a second rotational speed and measuring a second eccentricity when it reaches the second rotational speed; a sixth process for comparing the measured second eccentricity with the stored first eccentricity; and a seventh step for performing a dehydrating process when the measured second eccentricity is less than the stored first eccentricity.

Description

Background technique [0001] The invention relates to a drum washing machine, in particular to a drying control method of the drum washing machine, which can prevent vibration and noise caused by excessive eccentricity, and determine the reliability of detecting the eccentricity. Background technique [0002] Usually, the front-loading washing machine completes the drying process after a homogenization operation after the washing process is completed. The above-mentioned homogenization operation is to spread out the tangled clothes evenly in the washing process, that is, the drum is rotated at a low speed so that the clothes are separated from the inner wall of the drum and the tangled clothes are loosened. Then, after the homogenization process is completed, the drum is rotated at a high speed in the opposite direction of the homogenization operation during the spin-drying operation, thereby removing the moisture contained in the laundry. [0003] When the drum rotates at a...

AI Technical Summary

Problems solved by technology

Since in the prior art, the variation of the rotational speed per minute is measured at a fixed rotational speed (P) in the early drying operation, it is impossible to detect the occurrence of eccentricity, thereby reducing the reliability of eccentricity detection.

In addition, parts inside the washing machine may be damaged due to vibration and noise caused by eccentricity, and the spin-drying performance of the washing machine may also be reduced

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