US 2019/0169784 A1Published application

Dryer and method of controlling the same

AssigneeLG Electronics Inc.

InventorsIlman Seo, Deokjoon Jeong, Setae Kim

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Abstract

Disclosed are a dryer and a method of controlling the same, the dryer which is capable of: determining an amount of laundry loaded in the dryer and controlling a drying operation according to the amount of laundry; measuring a current supplied to rotate the drum and extracting a force applied to laundry in the drum to measure an amount of laundry; changing a rotation direction to minimize an error in the amount of laundry, which is caused by entanglement of the laundry; performing a drying operation after determining the amount of laundry through adjustment of the rotation direction; and setting a drying time in consideration of both a calculated amount of laundry and a type of the laundry, such that damage to the laundry is prevented and over-drying or less-drying of the laundry is solved, thereby efficiently drying the laundry.

Claims20

Dependent claims

A dryer including:

a drum configured to accommodate laundry;
a motor connected to the drum by a drive belt and configured to rotate the drum;
a blow fan configured to circulate air through the drum in response to driving of the motor;
a driving controller configured to apply operation power to the motor to operate and stop the motor, the driving controller being configured to control a rotation speed of the motor;
a current sensing unit configured to measure a current value of the motor;
and
a controller configured to:
control the driving controller to rotate the drum according to an operation pattern comprising an acceleration stage in which a rotation speed of the drum increases and a maintaining stage in which the rotation speed of the drum is maintained,
set a duration of the acceleration stage to be greater than a duration of the maintaining stage,
determine an amount of laundry in the drum based on current values sensed by the current sensing unit, and
control a drying operation of the dryer based on the amount of laundry.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/207,997Filed 3 Dec 2018
Priority: KR 10-2017-01644711 Dec 2017
Published: 6 Jun 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification15 codes

D06F 58/38
Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry: of drying, e.g.…
D06F 58/08
Details: driving arrangements
D06F 58/36
Characterised by the purpose or target of the control: control of operational steps, e.g. for optimisation or improvement of operational steps…
D06F 58/50
Characterised by the purpose or target of the control: responding to irregular working conditions, e.g. malfunctioning of blowers

Family

US 10,767,304 B2Related patent
US 2019/0169784 A1This patent

From the US filing history. Foreign family members aren’t listed.

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