KR20040110747A - Semi-Dry Method of Washing Machines - Google Patents

Abstract

PURPOSE: A semi-drying method of a washing machine is provided to remove creases of the laundry with evaporation heat of washing water, and to improve dryness of the laundry by supplying water to the side or the lower part of the tub and heating washing water. CONSTITUTION: A drum is rotated at low speed to dehydrate the laundry by centrifugal force in case of the eccentric load of the laundry to be within the allowable range(S10,S10'). The drum is agitated to disentangle the laundry(S20,S20'). The laundry is dried by dehydrating the laundry secondarily with centrifugal force and hot blast in rotating the drum at high speed after supplying and heating washing water(S30). The drum is agitated to disentangle the laundry after main dehydration(S40). Washing water is supplied to sink the heater in water, and the moisture from the laundry is evaporated by evaporation heat of washing water(S50).

Description

Semi-Dry Method of Washing Machines

The present invention relates to a semi-drying method of a washing machine, and more particularly, to a semi-drying method of a washing machine which dehydrates laundry in stages by centrifugal force and warm air.

The drum washing machine according to the prior art has a cabinet (2) having a door (1) in the front as shown in Figure 1, and a tub (6) supported and fixed by a damper (4) inside the cabinet (2) And a drum 8 installed inside the tub 6 so as to be rotatable in a horizontal direction in a axial direction, in which laundry is deposited and a hand 8a is formed, and a rear side of the tub 6 is provided with the drum ( 8) connected to the rotary shaft 9, the motor 10 for rotating the drum 8, the water supply device 12 for supplying the wash water to the tub 6 and the drum 8, and the tub ( 6) and a drainage device 14 for draining the wash water supplied to the drum 8.

In addition, a controller for controlling the operation of the detergent box 16 and the washing machine in which the detergent is stored so that detergent is supplied to the tub 6 and the drum 8 together with the washing water at the time of washing the cabinet (2). 18 is installed, a heater 20 is installed at the lower side of the tub 6 to heat the wash water supplied during the washing stroke so that laundry can be boiled. The lift 22 is installed to lift the laundry to a certain height during the rotation of 8).

Looking at the operation of the washing machine configured as described above are as follows.

When laundry is loaded on the drum 8 and the washing pattern is input through the controller 18, detergent is first supplied to the tub 6 and the drum 8 together with the washing water, and then the drum 8 is driven by a motor. When the driving force of (10) is transmitted and rotated, the chemical reaction of the detergent and the friction force between the laundry and the water, and the laundry are lifted up to a certain height by the lifter 22, and then the friction force is rubbed with the drum 8 while falling by gravity. The laundry is washed and the contaminated washing water is drained after a certain time.

Next, only the wash water is supplied to the tub 6 and the drum 8 again, the laundry is rinsed as the drum 8 is rotated, and contaminated washing water is drained, and the drum 8 is then operated for 3 to 5 minutes. While rotating at a high speed of 1000 ~ 3000rpm laundry is dehydrated by centrifugal force.

However, in the prior art, since the drum 8 is rotated at high speed so that the laundry is dehydrated by centrifugal force during dehydration, the laundry is entangled with each other after dehydration and the laundry is inserted into the hand 8a of the drum 8. Since the process of taking out the laundry and untangling the laundry and hanging it on the drying rack is not only difficult, but also requires drying the laundry outside for a long time, weather and time constraints are required, and the wrinkles of the laundry are severe, requiring post-treatment such as ironing after drying. There is a problem.

On the other hand, nowadays, as shown in FIG. 2, a drying apparatus 30 for artificially drying laundry in a short time by using hot air in a washing machine may be installed. In this case, the hot air in the tub 6 and the drum 8 may be installed. Since the duct 32 and fan 34 for supplying the heater and the heater 36 for heating the air are additionally installed, not only the size of the washing machine is increased but also the price is high, and the drying time due to the hot air takes about 2 to 3 hours. There is a lot of energy consumption, the laundry is dried by hot air in a closed space for a long time there is a problem that the laundry smells squishy and the cloth is damaged.

The present invention has been made to solve the above problems of the prior art, it is an object of the present invention to provide a semi-drying method of a washing machine to minimize the wrinkles of laundry after dehydration and to increase the dryness of the laundry.

1 is a side cross-sectional view of a washing machine according to the prior art,

Figure 2 is a side cross-sectional view of a dry combined washing machine according to the prior art,

3 is a side cross-sectional view of a washing machine according to the present invention;

4 is a flowchart of a semi-drying method of a washing machine according to the present invention;

FIG. 5 is a view illustrating operations of a motor, a drain pump, a water supply device, and a heater according to a semi-drying method sequence of a washing machine according to the present invention.

<Explanation of symbols on main parts of the drawings>

50: cabinet 58: tub

60 drum 62 motor

64: water supply device 64b: second water supply hose

66: drainage 66b: drain pump

70: water level sensor

S10, S10 ': Simplified dehydration stage S20, S20': Initial follicle stage

S30: main dewatering step S40: finishing poultry step

S50: evaporation step

The semi-drying method of the washing machine according to the present invention for solving the above problems is the semi-drying method of the washing machine according to the present invention, if the eccentricity of the laundry deposited on the drum is within the allowable range, while the drum is rotated at a constant speed, the laundry is centrifugal force The simple dehydration step of the first dehydration step, and after the simple dewatering step, the drum is stirred and rotated, the initial foaming step of tangling the laundry, and after the initial foaming step, the drum rotates at a higher speed than the simple dewatering step In addition, the main body dehydration step of washing the water supplied to the heater is locked so that the laundry is secondary dewatering by centrifugal force and warm air, and after the main dehydration step, the final foaming step of tangling the laundry while the drum is stirred and rotated; During the finishing inflating step, the washing water is heated so that the heater is locked and then heated to increase the water of the laundry. Which comprises a evaporation step.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Drum washing machine according to an embodiment of the present invention as shown in Fig. 3 is installed in the front door 51 in the center, the detergent box 52 and the washing course stored detergent in the upper front receives the washing progress A cabinet 50 in which a controller 54 for displaying is installed, a tub 58 supported and fixed by a damper 56 in the cabinet 50, and a horizontal direction is formed in the tub 58. Is installed so as to be rotatable in the laundry is stacked and a plurality of handmade (60a) is formed on the circumferential surface and the drum (60) is installed on the rear of the tub (58), which is installed to lift the laundry when rotating therein, and the tub (58) And connected to the drum 60 and the rotating shaft 63, the motor 62 for rotating the drum 60, the water supply device 64 for supplying the wash water to the tub 58 and the drum 60 and And a drainage device 66 for draining the wash water supplied to the tub 58 and the drum 60, and the tub. It is configured to include a heater 68 is fixed to the inner lower side of the bar 58 when the power is applied to generate heat by the electrical resistance to heat the wash water.

In the above, the water supply device 64 is a first water supply hose for guiding the washing water to the detergent box 52 so that detergent can be supplied to the tub 58 and the drum 60 together with the washing water during the washing operation. 64a, a second water supply hose 64b provided between the detergent box 52 and the tub 58, and a water supply valve 64c installed on the first water supply hose 64a to open and close. .

In particular, the second water supply hose (64b) and the side or lower side of the tub (58) so as not to wet the laundry accumulated in the drum (60) until the wash water reaches a certain level Connected.

The drainage device 66 is connected to the lower side of the tub (58) for guiding the wash water to the outside of the cabinet (50), and installed on the drain hose (66a) to drain the wash water It is composed of a drain pump (66b), the water supply to the tub (58) and the drum (60) by measuring the water pressure of the wash water drained to the drain hose (66a) to the tub (58) side drain hose (66a) The water level sensor 70 for detecting the level of the wash water is installed.

Looking at the washing method of the washing machine according to the present invention configured as described above are as follows.

When the user inputs the washing course through the controller 54, the washing pattern is set according to the input washing course and quantity, and then the washing and rinsing process is performed according to the set washing pattern. The laundry is semi-dried according to the semi-drying method.

In the semi-drying method according to the present invention, if the amount of eccentric laundry deposited on the drum 60 is within the allowable range, the drum 60 is rotated at a constant speed while the laundry is dehydrated by centrifugal force (S10, S10). '), And the initial de-explosion step (S20, S20') and the initial inflating step, the drum 60 is stirred and rotated at a low speed when the simple dehydration step (S10, S10 ') is completed. When the (S20, S20 ') is completed, the drum 60 is rotated at a higher speed than the simple dehydration step (S10, S10'), and the wash water is heated to at least the heater 68 is locked and then heated to wash the centrifugal force. The main dehydration step (S30) and the secondary dehydration step by the warm air and the final dewatering step (S30) is completed, while the drum 60 is agitated and rotated at a low speed while finishing tangles of the laundry is loosened (S40), At least the wash water at the finishing inflating step (S40) The heater 68 is heated so as to be submerged, and then heated to form an evaporation step (S50) in which the water of the laundry is evaporated by the heat of evaporation.

Specifically, the simple dehydration step (S10, S10 ') is the drum 60 is vibrated violently when the drum 60 is rotated by the motor 62, so the drum 60 vibrates violently, one cycle During the rotation of the drum 60, the laundry can be attached to the wall of the drum 60 without being dropped by gravity so that the amount of laundry eccentric can be sensed through the change of the load on the motor 62 during An eccentric detection process S12 is performed in which the motor 62 is driven for about 1 minute at a critical speed, that is, 350 rpm.

Then, if the eccentricity of the laundry in the eccentric detection process (S12) is within the allowable range, the heavy the laundry in the dehydration step (S30) is pressed on the wall surface of the drum 60 by centrifugal force and the hand of the drum ( 60A), the primary dehydration process (S14) is performed to dehydrate the laundry by centrifugal force so that the water content of the laundry is less than a predetermined level before the present dehydration step (S30).

Of course, in the primary dehydration process (S14), the laundry is not dropped by gravity but attached to the wall surface of the drum 60 by centrifugal force, so that the laundry is not caught in the hand 60a of the drum by the centrifugal force. Although the speed of the motor 62 is set, since the water content of the laundry is high, the speed of the motor 62 is set relatively low, about 600 to 900 rpm.

However, if the speed of the motor 62 is low, the centrifugal force is also small, so that it is difficult to sufficiently dehydrate the laundry before the present dehydration step (S30), so that the moisture content of the laundry gradually decreases during the first dehydration process (S14). Accordingly, by setting the speed of the motor 62 to increase gradually, the laundry is dehydrated in stages.

In addition, since the laundry is further tangled by the rotation of the drum 60 in the primary dehydration process (S14) or the laundry dehydration speed varies depending on the type of laundry, the amount of eccentricity of the laundry may vary, so the simple dehydration step (S10, S10). ') Is performed a plurality of times alternately with the initial inflating step (S20, S20') on the basis of the time when the speed of the motor 62 is increased.

That is, the simple dehydration step (S10, S10 ') is the first simple dewatering step (S10) and the primary in which the motor 62 is driven for about 30 seconds at a speed of about 600rpm in the primary dewatering process (S14), In the dehydration process (S14), the motor 62 is made of a second simple dehydration step (S10 ') which is driven for about 3 minutes at a speed of about 900 rpm, and the initial inflating steps (S20, S20') are also made of the first The second and second initial inflated step (S20, S20 ') consists of.

Next, the initial inflating step (S20, S20 ') is set so that the motor 62 is turned on / off according to the set duty (Duty) and are driven alternately in the forward / reverse direction so that the drum 60 is stirred and rotated. Thus, the laundry is removed from the wall surface of the drum 60 and evenly deposited.

In the initial inflating step (S20, S20 '), the control speed of the motor 62 is about 50rpm, the duty value, which is the on / off time ratio of the motor in seconds, is 4/10, and the initial inflating time is 1 minute 30 Seconds to 2 minutes 30 seconds.

Next, the dehydration step (S30), first, an eccentric detection process (S32) for detecting an eccentric amount of laundry in the same manner as the eccentric detection process (S12) of the simple dehydration step (S10, S10 ').

Then, the motor 62 is driven at about 1200 rpm for 13 minutes so that the laundry does not fall by gravity but adheres to the drum 60 by centrifugal force, and is not caught by the hand 60a of the drum. After a small amount of water is supplied, a secondary dehydration process (S34) in which the heater 68 is supplied with power for a predetermined time is performed.

At this time, the washing water is the tub (through the second water supply hose 64b connected to the side or bottom of the tub 58 so as not to wet the laundry while the drum 60 is rotated at the same time the tub ( 58) a certain amount of water.

That is, when the heater 68 is not completely immersed in the wash water, the parts exposed out of the wash water deteriorate and a safety accident occurs, so that the wash water evaporates during the operation of the heater 68 so that the water level of the wash water is not lowered. Washing water is supplied at least so that the heater 68 is completely submerged.

When the wash water is supplied too much, the wash water flows into the drum 60 so that the laundry deposited on the drum 60 is wetted by the wash water supplied with the wash water. Water is supplied to the proper level to prevent inflow.

The heater 68 is operated for 4 minutes to 12 minutes so that the washing water is heated to 35 ° C. to 75 ° C. immediately after the water supply of the washing water is completed.

Of course, the washing water is supplied in the dehydration step (S30), when the heater 68 is in operation of the drain pump 66b for draining the washing water from the tub 58 and the drum 60 so that the washing water is not drained The driving is stopped, and the drain pump 66b is restarted at a time interval t for about 30 seconds after the operation of the heater 68 is completed.

On the other hand, when the wash water is supplied in the dehydration step (S30), even if the water supply amount of the wash water is set in advance, the water supply amount may vary depending on the washing water supply speed and temperature, so that the washing water may not always be supplied at an appropriate level. In addition, since there are many variables affecting the evaporation rate of the washing water when the heater 68 is operated, the water level of the washing water may be lowered below the minimum level at which the heater 68 is locked even though the operating time of the heater 68 remains. There is a danger.

Therefore, in the present dehydration step (S30) and the water supply device 64 for supplying the wash water so that the wash water can be supplied to the appropriate water level according to the detection result of the water level sensor 70 for detecting the water level of the wash water is controlled The heater 68 is controlled so that the operation of the heater 68 is stopped when the water level of the wash water reaches the minimum level during the operation of the heater 68.

In the present dehydration step (S30), since the drum 60 is rotated at a high speed by the motor 62, the laundry is dewatered by centrifugal force, and at the same time, the washing water is heated by the heater 68 to form heat. Since hot air is formed when the drum 60 rotates due to the heat, moisture of the laundry is evaporated by the warm air, thereby semi-drying the laundry faster than when the laundry is dried by centrifugal force.

In addition, since the warmth remains in the laundry even after washing of the laundry until the semi-drying stroke, the dryness of the laundry is improved by condensing and drying the laundry water due to a difference from the external temperature when the laundry is taken out and washed.

Next, the finishing inflating step (S40) by dropping the laundry from the wall surface of the drum 60 and releasing the tangling of the laundry so that the user can easily take out the laundry one by one to hung on the drying rack ( S20 and S20 ').

Finally, the evaporation step (S50) is supplied to the tub 58 to the appropriate water level through the second water supply hose (64b) so as not to wet the laundry during the water supply at the same time the finishing poultry step (S40) is carried out When the water supply process (S52) and the water supply of the wash water is completed, power is applied to the heater (68) to the heating process (S54) in which the wash water is heated.

Of course, as in the present dehydration step (S30), the wash water is controlled by the water level sensor 70 at the time of water supply to the appropriate water level, the heater 68 is in response to the detection result of the water level sensor 70 during operation Therefore, it stops to prevent a safety accident.

Then, the drain pump 66b is restarted in the main dehydration step (S30) and then stopped again while the evaporation step (S50) is carried out, and then the evaporation step (S50) is completed to a predetermined time (t), That is, after 25 to 35 seconds, all the washing water remaining in the tub 58 and the drum 60 is redriven to drain.

The semi-drying method of the washing machine according to the present invention constituted as described above is a simple dehydration step in which the laundry is firstly dehydrated by centrifugal force while the drum is rotated at a constant speed if the eccentric amount of the laundry deposited on the drum is within an allowable range, and the simple After the dehydration step, the initial foaming step of tangling the laundry while the drum is stirred and rotating, and after the initial foaming step, the drum is rotated at a higher speed than the simple dewatering step, and the wash water supplied so that the heater is locked is heated. The main dehydration step of washing the laundry secondary to centrifugal force and warm air, and after the main dehydration step, the drum is stirred and rotated to finish entanglement of the laundry, and the heater is locked so that the heater is locked during the finishing foaming step. The laundry is stepped because the water is heated and then evaporated to dry the laundry. In addition, dehydration by centrifugal force and inflated alternately with dehydration, almost no crease of the laundry, it is slightly less curled to dry the laundry in a short time, there is an advantage that can be ironed immediately wear.

In particular, the semi-drying method of the washing machine according to the present invention is the washing water in the dehydration step and the evaporation step, the water is supplied to the side or lower side of the tub so as not to wet the laundry to flow into the drum is heated to the heat of evaporation of the wash water This not only causes the wrinkles of the laundry to be ironed out, but also improves the dryness of the laundry.

Claims (6)

In the washing machine is provided with a heater for heating the wash water at the bottom of the tub, the water supply lake is connected to the side or bottom of the tub, If the amount of eccentric load of laundry placed on the drum is within the allowable range, the drum is rotated at a constant speed while the laundry is dehydrated by a centrifugal force; After the simple dewatering step, the initial folds of the laundry is tangled while the drum is stirred and rotated; After the initial inflating step, the drum is rotated at a higher speed than the simple dewatering step and the washing water supplied to the heater is heated so that the laundry is dewatered by centrifugal force and warm air for secondary dehydration; After the dehydration step, the drum is stirred and rotated to finish the lapping of the laundry tangling; Semi-drying method of the washing machine consisting of an evaporation step of washing the water is heated and the water is evaporated to wash the water so that the heater is locked during the finishing inflating step. The method of claim 1, Semi-drying method for a washing machine, characterized in that the water supply level of the washing water is set to an appropriate level so that the heater is locked and the washing water does not flow into the drum. The method of claim 1, The heater is operated immediately after the water supply of the wash water is finished semi-drying method of the washing machine, characterized in that for heating the wash water. The method of claim 1, Semi-drying method for a washing machine, characterized in that the drain pump for draining the wash water is stopped when washing water is supplied and when the heater is operated. The method of claim 4, wherein The drain pump is a semi-drying method of the washing machine, characterized in that for a predetermined time after the heater is stopped, it is restarted to drain the wash water. The method of claim 1, Semi-drying method of a washing machine characterized in that the washing water is supplied to an appropriate level, and the washing water level is sensed by a level sensor so that the heater is stopped when the washing water is evaporated to the minimum level at which the heater is locked during operation of the heater.