KR20070075487A - Spin control method of wash machine - Google Patents

Abstract

A dehydration method of a standing washing machine is provided to improve the life span of a motor by regulating on- and off-time of a motor according to dehydration time and loading amount to prevent an overload of the motor, thereby improving the efficiency of the motor. A dehydration method of a standing washing machine includes the steps of: detecting the amount of cloth of laundry articles(S1); setting a dehydration pattern according to the amount of the cloth of the laundry articles; and performing a dehydration operation of the laundry articles according to the set dehydration pattern. The step of performing the dehydration operation includes the sub-steps of: accelerating a washing tub to a set RPM by using a motor(S10); and operating the washing tub at a constant RPM by using the motor.

Description

Spin control method of upright washing machine

1 is a cross-sectional view showing the configuration of an upright washing machine according to the present invention;

2 is a flow chart showing the entire washing method of the upright washing machine according to the present invention;

Figure 3 is a graph showing the change in the motor ALPM of the dewatering operation of the upright washing machine according to the present invention,

4 is a flowchart illustrating a dewatering method of an upright washing machine according to the present invention;

<Explanation of symbols on main parts of the drawings>

2: cabinet 4: washing tub

6: motor 8: power train

10: the tide 12: the tide

14: pulsator 16: support member

18: top cover 20: lead

22: controller 24: water supply hose

26: water supply valve 28: drain valve

30: drain hose

The present invention relates to a dewatering method of an upright washing machine, and more particularly, to a dewatering method of an upright washing machine, in which a dewatering pattern is changed according to the quantity of laundry to reduce vibration and noise.

In general, a washing machine is a device for washing laundry through washing, rinsing, and dehydration to remove contamination from clothes, bedding, etc. (hereinafter referred to as 'laundry') using water, detergent, and mechanical action. .

Such a washing machine is largely classified into an agitator type, a pulsator type, and a drum type washing machine according to a washing method.

The washing machine washes the laundry while the laundry rod towering in the center of the washing tank rotates to the left and right, and the vortex washing machine washes the laundry while the disk-shaped pulsator formed at the bottom of the washing tank rotates to the left and right, and the drum washing machine The laundry is washed while the drum arranged horizontally inside the tub rotates.

Typically, since the vortex type washing machine and the stirring type washing machine have a structure in which a washing tank is vertically erected, it is collectively referred to as an upright washing machine to distinguish the drum type washing machine.

The upright washing machine includes a washing tank for receiving water and laundry, and a driving device for rotating the washing tank, wherein the driving device includes a motor for generating a driving force of the washing tank, and a power for properly transferring the driving force of the motor to the washing tank. It consists of a delivery mechanism.

In the upright washing machine configured as described above, after the laundry is put into the washing tank, the washing tank is inverted left and right at a low speed ALPM by the driving device in a state in which a proper amount of water and detergent are supplied, and the laundry is washed, and the water in the washing tank is washed. After the detergent is drained and the clean water is re-supplied, the washing tank is inverted left and right by a low speed ALPM by the driving device, and the washed laundry is rinsed, and the washing tank is washed by the driving device while the water in the tub is drained. Is rotated at high speed ALPM so that the rinsed laundry is centrifuged.

On the other hand, when the conventional dehydration method is described in detail, the power is turned on (ON) / off (OFF) while rotating the washing tank in which the rinsed laundry is accommodated.

At this time, the motor is driven in an on / off pattern for accelerating the washing tank until the ALMP of the washing tank reaches the high speed setting ALMP, and when the AlMP of the washing tank reaches the high setting ALMP, the washing tank for the predetermined time with the setting ALPM Is driven in an on / off pattern that rotates at a constant speed at high speed.

As described above, the washing tank is accelerated to a high speed setting ALMP by a motor, and the washing water included in the laundry is mostly dehydrated in the process of rotating at a constant speed.

However, in the dewatering method of the upright washing machine according to the prior art, since the amount of washing water may vary depending on the type of laundry, the load applied to the motor during dehydration will vary depending on the type of laundry, but the on / off of the motor There is a problem that the dehydration pattern is always applied the same.

Therefore, the dehydration of the laundry proceeds in the same dehydration pattern irrespective of the quantity of the laundry during the dehydration stroke, so if the laundry is disproportionately placed inside the washing tub, the vibration and noise generated during dehydration are increased, resulting in increased product value and product quality. There is a problem that the safety and the like is lowered.

In addition, when a small amount of laundry put into the washing tank, not only the efficiency of the motor is reduced, but also power consumption increases, and if the laundry put into the washing tank is large, there is a problem in that the motor is overloaded.

The present invention was created to solve the above problems, the object of the present invention is to perform the dehydration in a suitable dehydration pattern according to the amount of laundry, the vibration and noise when dewatering, the upright can be improved dewatering performance It is to provide a dehydration method of the type washing machine.

In addition, another object of the present invention is to perform the dehydration in the optimum dehydration pattern according to the load on the motor, thereby increasing the efficiency of the motor, reducing the power consumption of the motor, it can be prevented to decrease the life due to the overload of the motor It is to provide a dewatering method of an upright washing machine.

Dehydration method of an upright washing machine according to the present invention for realizing the above object is a quantity detection step of detecting the quantity of laundry, a pattern setting step of setting the dehydration pattern according to the quantity of the laundry, and the set dehydration pattern According to the dehydration step is carried out according to the dehydration of the laundry.

The dehydration step is a simple degassing process in which the washing tank is accelerated by the motor to the set ALPM, and the main dehydration process in which the washing tank is driven at a constant speed by the motor at the set ALPM, and the dehydration pattern of the pattern setting step is a motor in the descaling process. It characterized in that the intermittent pattern in which the power is turned on (ON) / off (OFF).

In the pattern setting step, the dehydration pattern is set according to a section in which the quantity detection value corresponds to a section in which the quantity detection value of the quantity detection step corresponds to a predetermined quantity of storage period.

In the dehydration pattern, the on time of the motor decreases as the quantity detection value decreases, and the on time of the motor increases as the quantity detection value increases.

In addition, the dehydration pattern is set in a direction in which the ratio of the on time to the off time of the motor increases as the dehydration time elapses.

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

1 is a cross-sectional view showing the configuration of an upright washing machine according to the present invention.

As shown in FIG. 1, the upright washing machine according to the present invention includes a cabinet 2 forming an exterior, and a washing tank 4 rotatably installed in the cabinet 2 to accommodate washing water and laundry. And a motor 6 disposed below the washing tub 4 to generate a rotational force for washing the laundry, and installed between the motor 6 and the washing tub 4 to drive a driving force of the motor 6. It comprises a power transmission mechanism 8 for transmitting to the washing tank (4).

Here, the washing tub 4 is installed vertically by the support member 16 in the cabinet 2 to the outer tub 10 in which the washing water is accommodated, and rotatably installed in the tub 10. An inner tub 12 having a plurality of through holes 12A through which laundry is accommodated and washing water passes therethrough, and a pulsator 14 rotatably installed on an inner bottom surface of the inner tub 12 to generate a wash stream of the wash water. Is made of.

The inner tank 12 and the pulsator 14 as described above selectively receive the power of the motor 6 by the power transmission mechanism 8 when the upright washing machine 1 operates.

In addition, a top cover 18 having a laundry access hole is mounted on an upper portion of the cabinet 2, and a lid 20 for opening and closing the laundry access hole is rotatably connected to an upper portion of the top cover 18. .

One side of the top cover 18 is provided with a controller 22 for operating the operation of the washing machine 1 at the time of standing up and displaying the operating state of the upright washing machine 1, and the outer tank 10 on the other side. The water supply hose 24 and the water supply valve 26 for supplying the wash water are installed in communication with the outer tank 10.

In addition, the lower portion of the outer tank 10 is installed in communication with the drain valve 28 and the drain hose 29 for draining the wash water to the outside.

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

Figure 2 is a flow chart illustrating the entire washing method of the upright washing machine according to the present invention, Figure 3 is a graph showing the change of the motor PM during dehydration operation of the upright washing machine according to the invention, Figure 4 is a present invention The dehydration method of the upright washing machine according to the present invention is a flow chart.

First, laundry and detergent are put into the inner tub 12 through the laundry entrance of the upright washing machine 1, and then the laundry entrance is closed by the lid 20.

Then, when the operation is operated through the controller 22 of the upright washing machine (1), the quantity of laundry put into the inner tank 10 is detected, depending on the quantity of the laundry, such as washing course, washing time, water level The washing method is set.

The quantity detection of the laundry is to detect the amount of laundry dried in the inner tank 12, and various methods may be applied according to the model of the washing machine 1 (see S1).

For example, after a certain amount of power is supplied to the motor 6 for a predetermined time, the amount of laundry to be put into the outer tub 10 is measured by the rotational angle or the counter electromotive force of the motor 6 while the power is cut off again. do.

When the washing method is set according to the dry amount of the laundry as described above, the water supply valve 26 is opened and the washing water is supplied to the inside of the outer tank 10 to the set water level (see S2).

When the wash water is supplied to the outer tank 10 to a predetermined level, the motor 6 is driven after the water supply valve 26 is shut off, and the driving force of the motor 6 is transmitted to the power transmission mechanism 8. It is selectively delivered to the inner tank 12 and the pulsator 14, and the inner tank 12 or the pulsator 14 is reversed left and right to a low-speed washing AlpM to generate a rotating water flow of the washing water (see S3).

At this time, the laundry is decontaminated by the friction action with the rotating water flow and the cleaning action of the detergent.

When the laundry is washed for a set washing time, the drain valve 28 is opened while the driving of the motor 6 is stopped so that the washing water in the tub 10 is erected through the drain hose 30. Is drained to the outside (see S4).

When the washing stroke is completed as described above, the inner tank 12 is accelerated and rotated by the motor 6 to the high speed dehydration ALPM so that the wash water contained in the laundry is spoiled (see S5).

Thereafter, the driving of the motor 6 is stopped, the water supply valve 26 is opened, and clean washing water is supplied to the inside of the outer tub 10 again up to the set water level, and the inner tank ( 12) or the pulsator 14 is inverted left and right with a low-speed rinsing ALPM to rinse the laundry. (See S6 and S7.)

When the laundry is rinsed for a set rinsing time, the drain valve 28 is opened while the driving of the motor 6 is stopped so that the washing water in the tub 10 is erected through the drain hose 30. Is drained to the outside (see S8).

This rinsing cycle of the laundry is repeatedly performed until the set number of times (see S9).

When the rinsing stroke is completed as described above, the inner tank 12 is accelerated and rotated by the motor 6 to a high speed dewatering ALPM so that the laundry is easily dewatered, and the inner tank 12 is fastened by the motor 6. When the dewatering AlPM is reached, the water is rotated at a constant speed for a predetermined time to perform the main dewatering of the laundry. (See S10 and S11)

At this time, the wash water contained in the laundry is discharged to the outer tank 10 through the hand 12A of the inner tank 12, the water discharged to the outer tank 10 is drain valve 28 and the drain hose ( Through 30).

On the other hand, the dewatering method of the upright washing machine according to the present invention, as shown in Figure 3 or 4, the quantity detection step of detecting the quantity of laundry, and the pattern setting step of setting the dehydration pattern according to the quantity of the laundry and It is characterized in that it consists of a dehydration step of performing a dehydration of the laundry according to the set dehydration pattern.

Here, in the quantity detection step, after the rinsing stroke is completed, the wet amount of the laundry including the washing water is sensed, and is carried out in the same manner as the quantity detection S1 of the washing stroke (S20).

In the pattern setting step, it is determined in which section of the predetermined amount of dose amount the amount of detection amount in the amount of detection step is included, and an optimal dehydration pattern is set according to the amount of dose period in which the amount of detection amount is included. (See S21, S22, S23, S24, S25, S26)

The dehydration pattern is a pattern in which power is turned on / off in the motor 6, and is a desorption pattern in which power is turned on / off when the laundry is desorbed.

Therefore, the dehydration method of the present invention can be applied not only to the descaling step S9 of the dehydrating stroke but also to the descaling step S5 of the rinsing stroke.

As described above, the splintering pattern is set in a direction in which a ratio of ON time / OFF time to an off time increases as the splintering process of the laundry proceeds.

That is, since the load on the motor 6 is large in the intermittent initial stage A, when the ratio of the OFF time and the ON time is large, the motor 6 is momentarily overloaded. Since the burn is generated by the operation, the motor 6 is gradually driven at a minimum ratio (ON time / OFF time) capable of starting the inner tank 12 in which the laundry is accommodated.

On the other hand, as the inner tub 12 is rotated by the motor 6, not only the washing water contained in the laundry is centrifugally dewatered, but the load applied to the motor 6 is reduced by the inertial force of the inner tub 12. .

Therefore, since the amount of load applied to the motor 6 is smaller than the initial detrimental phase A, the ratio of the off time and the on time to the intermittent intermediate period B is smaller than the initial detrimental phase A. It is largely set, and the ratio of the off time and the on time compared to the intermittent intermediate period B is reduced since the load on the motor 6 is further reduced in comparison with the intermittent intermediate period B at the end of the intermittent terminal C. OFF time) is set larger.

The quantity section can be set in various ways according to the design conditions of the washing machine 1, in the present embodiment will be described by limiting the quantity section is set to three sections, small amount, weight, mass.

The de-gap pattern is set in a direction in which the on time of the motor 6 is decreased as the quantity of detection value decreases and the on time of the motor 6 increases as the quantity of detection amount is increased.

That is, the on time when the dose detection value is heavy is set longer than the on time when the dose detection value is a small amount, and the dose detection value is larger than the on time when the dose detection value is heavy. The on time of when is set longer.

When the length of the on time is set differently according to the amount of detection value as described above, the torque of the motor 6 is appropriately adjusted according to the magnitude of the load applied to the motor 6 during the derailment.

In addition, in the dehydration step, laundry degassing is performed in the depilation pattern set in the pattern setting step, and when the AlpM of the motor 6 reaches the set AlpM (rpm1), the laundry for a predetermined time with the set AlpM (rpm1). A mask is taken into account (see S27, S28, and S29).

Of course, when the RMP of the motor 6 reaches the set RPM (rpm1) in the intermittent process (S5) of the rinsing stroke, the driving of the motor 6 is stopped and then proceeds to the water supply process (S6).

When the motor 6 is driven in the pattern setting step set in the pattern setting step as described above, the AlpM of the motor 6 is accelerated up to the setting rpm (rpm1) while generating an RMP ripple as the evaporation progresses.

At this time, even if the amount of the wet foam varies depending on the type of the laundry, the torque of the motor 6 is adjusted according to the amount of the wet foam of the laundry by the intermittent pattern, so that the upright washing machine ( The dewatering performance of 1) and the efficiency of the motor 6 are improved.

As described above, the dewatering method of the upright washing machine according to the present invention has been described with reference to the illustrated drawings. Of course, variations are possible.

In the dewatering method of the upright washing machine according to the present invention operated as described above, the optimal dewatering pattern is set according to the quantity of laundry and dehydration of the laundry is performed according to the dewatering pattern, so that the dewatering performance of the laundry is improved, and when dewatering The advantage is that vibrations and noise generated due to uneven placement of the laundry are reduced.

In addition, the dewatering pattern of the motor is adjusted according to the load amount and dehydration time applied to the motor, the motor overload phenomenon is prevented to increase the life of the motor, the efficiency of the motor is improved to improve the power consumption of the motor There is also an advantage that is reduced.

Claims (5)

A quantity detection step of detecting the quantity of laundry; A pattern setting step of setting a dehydration pattern according to the quantity of laundry; Dehydration method of an upright washing machine, characterized in that made of a dehydration step of performing a dehydration of the laundry according to the set dehydration pattern The method according to claim 1, The dehydration step is a simple degassing process in which the washing tank is accelerated by the motor to the set ALPM, and the main dehydration process in which the washing tank is driven at a constant speed by the motor at the set ALPM, The dehydration pattern of the pattern setting step is a dehydration method of an upright washing machine, characterized in that the dehydration pattern of the power is turned on (ON) / off (OFF) in the inter-dehydration process. The method according to claim 2, In the pattern setting step, the dehydration pattern is set according to the section in which the quantity detection value corresponds, after determining whether the quantity detection value of the quantity detection step corresponds to a predetermined quantity section. How to dehydrate the washing machine. The method according to claim 2 or 3, The dehydration pattern is a dehydration method of the upright washing machine characterized in that the on time of the motor is reduced as the quantity detection value is reduced, and the on time of the motor is increased as the quantity detection value is increased. The method according to claim 4, The dewatering pattern is a dewatering method of the upright washing machine, characterized in that the ratio of the on time to the off time of the motor is set to increase as the dehydration time elapses.

Images