Drum type washing machine and drying method thereof

a washing machine and drum technology, applied in the field of drum type washing machines, can solve the problems of long drying time of laundry, damaged laundry, incomplete drying of laundry, etc., and achieve the effect of reducing the drying time of laundry

Inactive Publication Date: 2007-09-27
DAEWOO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0016]Therefore, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a drying method of a drum type washing machine of controlling temper

Problems solved by technology

However, since the laundry is always dried at the same temperature in the conventional drying method, the laundry may be damaged as the drying cycle is carried out when the laundry is dried at high temperature, and it may take a long time for drying laundry when the laundry is dried at low temperature.
Moreover, since when the laundry is completely dried cannot be detected, the drying cycle may be finished before the drying of laundry is

Method used

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  • Drum type washing machine and drying method thereof
  • Drum type washing machine and drying method thereof
  • Drum type washing machine and drying method thereof

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embodiment 1

1. Embodiment 1

[0085]FIG. 4 is a flowchart illustrating the drying cycle of the drum type washing machine according to the first preferred embodiment of the present invention, and FIGS. 5 and 6 are flowcharts illustrating respective drying cycles in FIG. 4.

[0086]The drying method of a drum type washing machine according to the first preferred embodiment of the present invention is a method in which heat is not applied to the laundry when the drum motor 140 is driven with the first motor driving range, but in which heat is applied when the drum motor 140 is driven within a second motor driving range after that. As shown in FIG. 4, the user firstly selects the drying mode through the key input section 170 (S710), and selects the completely drying mode of the drying modes, and then an eccentricity is measured (S720).

[0087]There are several methods of measuring the eccentricity, one of estimating duty of a pulse width modulation (PWM) control signal, and the other one of measuring time ...

embodiment 2

2. Embodiment 2

[0107]FIG. 7 is a flowchart illustrating a drying cycle of a drum type washing machine according to a second preferred embodiment of the present invention, FIGS. 8, 9, and 10 are flowcharts illustrating respective drying cycles in FIG. 7, FIG. 11 is a graph illustrating the relation between temperature and time during the drying cycle of the drum type washing machine according to the second preferred embodiment of the present invention, and FIG. 12 is a graph illustrating the relation between temperature and time with respect to the quantity of laundry during the drying cycle of the drum type washing machine according to the second preferred embodiment of the present invention.

[0108]The drying method of a drum type washing machine according to the second preferred embodiment of the present invention includes the steps of selecting the drying mode through the key input section 170 by the user (S110), and measuring the eccentricity when the user selects the completely d...

embodiment 3

3. Embodiment 3

[0148]Next, a drying method according to a third preferred embodiment of the present invention will be described with reference to FIG. 13.

[0149]FIG. 13 is a flowchart illustrating a drying cycle of a drum type washing machine according to the third preferred embodiment of the present invention.

[0150]The drying method of a drum type washing machine according to the third preferred embodiment of the present invention is similar as that according to the second preferred embodiment of the present invention. However, the drying method according to the third preferred embodiment of the present invention relates a drying method in a case of selecting the time drying mode different from the case of selecting the completely drying mode when the user selects the drying mode in the first preferred embodiment of the present invention.

[0151]Thus, it will be described in brief with respect to the same as that in the second preferred embodiment of the present invention, and other a...

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PUM

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Abstract

A nonvolatile semiconductor memory device which is superior in writing and charge holding properties, including a semiconductor substrate in which a channel formation region is formed between a pair of impurity regions formed with an interval, and a first insulating layer, a floating gate, a second insulating layer, and a control gate over an upper layer portion of the semiconductor substrate. It is preferable that a band gap of a semiconductor material forming the floating gate be smaller than that of the semiconductor substrate. For example, it is preferable that the band gap of the semiconductor material forming the floating gate be smaller than that of the channel formation region in the semiconductor substrate by 0.1 eV or more. This is because, by decreasing the bottom energy level of a conduction band of the floating gate electrode to be lower than that of the channel formation region in the semiconductor substrate, carrier injecting and charge holding properties are improved.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a drum type washing machine, and more particularly, to a drum type washing machine having a short time for drying laundry and a drying method thereof.[0003]2. Description of the Related Art[0004]Generally, a drum type washing machine is designed such that a cylindrical drum in a washing tub is rotated to drop laundry from the upper side of the drum to the lower side of the drum to wash the laundry during the rotation of the drum.[0005]The drum type washing machine has properties such that damage of the laundry caused by tangling of the laundry is relatively less than that in a pulsator type washing machine and an agitator type washing machine and the quantity of washing water used in washing the laundry is relatively less than that in the pulsator type washing machine and the agitator type washing machine.[0006]The drum type washing machine dries the laundry that is completely washed usi...

Claims

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Application Information

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IPC IPC(8): D06F33/00D06F29/00D06F35/00D06F39/00
CPCD06F25/00Y02B40/72D06F58/28D06F2101/20D06F2105/58D06F58/46D06F58/38D06F2103/32D06F2103/38D06F2103/04D06F2105/28D06F2105/46D06F58/26D06F58/04D06F58/24D06F2105/30D06F2103/26D06F2105/56D06F2105/36Y02B40/00
Inventor KIM, CHANG HOO
Owner DAEWOO ELECTRONICS CO LTD
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