KR20070056591A - Control method of the washing machine having dry function - Google Patents

Abstract

A control method of a combination drying and washing machine of a drum type is provided to shorten the drying time about dried objects having low dewatered degrees and to improve drying efficiency. A control method of a combination drying and washing machine of a drum type comprises two steps. The first step is for dewatering the laundry by rotating a drum at high speed if a drying step is selected alone(S10,S20,S30). The second step is for driving a blowing fan and a heater by rotating the drum at low speed if the dewatering step is finished so as to dry the laundry through hot wind(S60). The first step is for dewatering the laundry by rotating the drum at high speed in a first set time if the drying step is selected alone. A step between the first and second steps is for disentangling the laundry by alternately rotating the drum forward and reversely in a second set time if the first set time is past(S40). The second step is for drying the laundry through hot wind by driving the blowing fan and the heater by rotating the drum at low speed if the second set time is past.

Description

Control method of the combined drum washing machine

1 is a side cross-sectional view showing the overall configuration of a general dry combined washing machine

Figure 2 is a flow chart showing a control method of a dry combined drum washing machine according to the prior art

Figure 3 is a flow chart showing a method of controlling a dry drying course alone drying drum washing machine according to the present invention

The present invention relates to a dry washing machine, and more particularly, to a control method of a dry combined drum washing machine for shortening the stroke time and improving the drying performance when the drying stroke is selected alone.

In general, a drum washing machine is composed of a washing unit that directly contributes to washing, a driving unit for supplying power for the operation of the washing unit, a case forming an appearance, and the like, and a washing machine having a drying function includes a drying apparatus including a heater. It is configured to include.

Referring to the construction of the combined drying drum washing machine according to the prior art, the tub 10 supported by the spring 4 and the damper 5 is provided in the cabinet 2, as shown in FIG. The tub 10 is rotatably embedded inside the tub 10 to be loaded with laundry to wash the laundry, and the door 13 is connected to the cabinet 11 to open and close the drum 11. It is composed.

In addition, a gasket 12 is installed between the front surface of the tub 10 and the cabinet 2 to serve as a packing so that washing water does not leak when the door 13 is closed, and also vibrates when the drum 11 is rotated. It acts as a buffer.

In addition, the driving unit includes a drive motor 24 and a belt mechanism 22 connecting the drive motor 24 and the drum 11 to transfer the power of the drive motor 24 to the drum 11.

In addition, the drying apparatus for a drying function includes a heater 31 for heating ambient air, a blowing fan 25 for discharging the air heated through the heater 31 into the drum 11, and the blowing air. And a blower duct 30 for forming a flow path from the fan 25 to the front side of the drum 11 via the heater 31.

That is, a blowing fan 25 for circulating external air for drying laundry in the drum 11 and a heater 31 for heating air circulated by the blowing fan 25 are provided in the blowing duct 30. Installed and configured.

According to the drying combined washing machine configured as described above, the washing stroke is performed by rotating the laundry in the drum 11 by the rotation of the drum 11, and after the washing stroke is completed, the washing stroke is completed. Dehydration administration is performed.

Then, after the dehydration stroke is completed, a drying stroke is performed through a drying apparatus. The air outside the tub 10 is introduced into the blowing duct 30 by the operation of the blower fan 25 in the heating state of the heater 31. The drying stroke is performed in such a manner that the air introduced into the blowing duct 30 is heated through the heater 31 and then discharged into the rotating drum 11.

Referring to Figure 2, when explaining the sole drying stroke method of the conventional combined dry washing machine as follows.

After the laundry object is dried or the hand-washed object is added, and only the drying function is selected separately from the washing administration (S1) (S2), the quantity of the first object to be dried is detected (S3).

In this case, the quantity detection may be made by measuring the time required for the drum 11 to reach a constant speed.

The required time required for the drying stroke, that is, the dry provisional setting time, is determined according to the detected amount of quantity and displayed on the display means (not shown) (S4).

The drying stroke is continued until the object to be dried reaches the desired degree of drying. Since it is difficult to calculate the exact stroke time, the drying provision time is determined and displayed according to the quantity of the drying.

The dry provisional setting time is determined through a repeated test measuring the time to reach the target dryness for each batch, for example, upper (5 kg or more), medium (2 ~ 5 kg), lower (2 kg) If the dry provisional setting time is set to 120 minutes, 90 minutes, and 60 minutes, respectively, the corresponding temporary setting time is displayed according to the detected quantity during the stroke.

Thereafter, the drum 11 is rotated at a low speed, and the hot air is continuously supplied into the drum 11 while generating the heater 31. That is, the laundry is dried while the moisture remaining in the laundry evaporates due to the hot and dry hot air injected into the drum 11.

If the degree of drying of the object to be dried reaches the target value or more in the course of the drying administration proceeds to determine the completion of the drying (S5)

However, when the dehydration degree of clothing to be dried is low, it contains a large amount of water, and the actual travel time is greatly increased beyond the provisional setting time according to the quantity, thereby increasing energy consumption.

In addition, when a user directly inputs a drying stroke time, a low dehydration drying object may have a large amount of moisture included in clothing, and thus may not reach the target dryness within a user's input time, thereby reducing the drying performance of the product. do.

The present invention is to solve the above problems, an object of the present invention is to provide a method for controlling a dry drum washing machine that can shorten the drying stroke time and improve the drying performance for a low dehydration drying object. .

In order to achieve the above object, the present invention provides a drying stroke alone in a drying drum washing machine having a blowing fan for circulating the air in the drum for drying the object to be dried, and a heater for heating the air circulated by the blowing fan. If selected to rotate the drum at high speed to perform a dehydration stroke; In addition, when the dehydration operation is completed, while providing a control method for a dry drum washing machine comprising a step of performing a drying stroke using hot air by driving the blowing fan and the heater while rotating the drum at a low speed.

In addition, the present invention provides a drying combined drum washing machine having a blowing fan for circulating air in a drum for drying the object to be dried and a heater for heating the air circulated by the blowing fan. Performing a dehydration stroke by rotating the drum at a high speed for a preset time T1; Performing an inflating stroke by alternately rotating the drum in the forward / reverse direction during the second setting time T2 when the first setting time T1 has elapsed; And, when the second set time (T2) has elapsed while providing a control method for a dry drum washing machine comprising the step of driving the blowing fan and heater while performing a drying stroke using hot air while rotating the drum at a low speed.

Here, in the step of performing the dehydration stroke, it is preferable to perform a preliminary drying with the dehydration of the object to be dried by rotating the drum at a high speed and driving the blower fan and the heater.

Therefore, according to the present invention, when the drying function alone is used, dehydration administration is performed prior to the administration to sufficiently remove the moisture of the drying object, and then the drying administration can be performed to reduce drying time and improve drying performance.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention that can specifically realize the above object will be described.

Dry combined drum washing machine of the present invention is composed of the same components as in the prior art for the convenience of the description given the same name and the same reference numerals, detailed description of the washing machine configuration will be omitted.

The present invention, if you want to carry out only the drying administration separately to the laundry washing laundry, or to carry out the drying administration alone for hand-washed laundry, dehydration first to remove the water in the laundry after washing the laundry in earnest It is desirable to carry out the administration.

Referring to Figure 3, when described in detail the sole drying function control method of the combined drum washing machine according to the present invention.

First, when only the drying stroke is selected independently of the washing stroke in the state in which the drying target is put into the drum 11 (S10) (S20), a first preset time T1 is used to remove moisture in the drying target. The drum 11 is rotated at a high speed during the dehydration (S30).

At this time, the drum 11 of the process (S30) is preferably driven at the highest rpm applied to the dehydration stroke during the washing process.

In addition, the dehydration stroke (S30) applies a general dehydration program for rotating the drum 11 at high speed in a state in which the heater 31 and the blowing fan 25 are stopped, or the heater 31 and the blowing fan 25 It is possible to apply a hot air dewatering program for generating hot air in the drum 11 in the state of driving together, and at the same time rotating the drum 11 at high speed.

That is, the drum 11 may be rotated at a high speed prior to performing the drying stroke to sufficiently remove the moisture of the drying object, and when the heater 31 and the blower fan 25 are driven together through a hot air dehydration program. The drying effect can be obtained at the same time, which shortens the drying time compared to the general dehydration program.

Subsequently, in order to solve the kink of the drying object due to the dehydration stroke, the drum 11 is briefly rotated alternately in the forward / reverse direction for the second set time T2 (S40).

At this time, the inflated stroke (S40) can improve the drying performance by dispersing the dry objects that are stuck due to the dehydration stroke (S30) or in close contact with the inner tank (11) wall.

Then, when the inflated stroke is completed, the quantity is detected and the required time required for the drying stroke, that is, the dry provisional setting time, is determined and displayed on the display means according to the detected amount of foam (S50).

Subsequently, the heater 11 and the blower fan 25 are driven together while the drum 11 is rotated at a low speed to supply high temperature dry hot air into the drum 11. The hot air heated by the heater 31 circulates inside the drum 11 and absorbs the moisture of the object to be dried to perform a drying stroke (S60).

While the drying administration is in progress, the drying degree of the object to be dried is periodically detected, and when the drying degree reaches the target dryness, it is determined as the completion time of drying and after completion of a predetermined time cooling mode (S70), all the strokes are terminated. (S80).

Therefore, the present invention can shorten the drying time and improve the drying performance as a result of performing the dehydration and inflated stroke before performing the stroke in the drying administration used alone.

The present invention is not limited to the above-described embodiments, and can be modified by those skilled in the art as can be seen from the appended claims, and such variations are within the scope of the present invention. .

Referring to the effect of the control method of the combined drum washing machine according to the present invention described above are as follows.

First, dehydration is performed prior to the drying administration, and thus, the drying administration is performed after sufficiently removing the moisture of the laundry, thereby shortening the drying time and reducing the energy consumption.

Second, the drying performance can be improved by uniformly dispersing the laundry by performing a fold inflation stroke before the drying administration.

Claims (3)

In a dry combined-use drum washing machine having a blowing fan for circulating air in the drum for drying the object to be dried and a heater for heating the air circulated by the blowing fan, If the drying stroke alone is selected, rotating the drum at high speed to perform a dehydrating stroke; And, When the dehydration operation is completed, the drying method of the drum washing machine comprising the step of performing a drying stroke using hot air by driving the blowing fan and the heater while rotating the drum at a low speed. In a dry combined-use drum washing machine having a blowing fan for circulating air in the drum for drying the object to be dried and a heater for heating the air circulated by the blowing fan, Selecting a drying stroke alone to perform a dehydrating stroke by rotating the drum at a high speed for a first set time T1; Performing an inflating stroke by alternately rotating the drum in the forward / reverse direction during the second setting time T2 when the first setting time T1 has elapsed; And, And drying the drum by rotating the drum at a low speed when the second set time (T2) has elapsed, and performing a drying stroke using hot air. The method of claim 2, Performing the dehydration stroke, Rotating the drum at high speed and simultaneously driving the blower fan and the heater to perform a pre-drying with the dehydration of the drying object.

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