KR101203566B1 - Spin control method of wash machine - Google Patents

Abstract

The present invention relates to a washing machine dehydration method, an eccentric amount of laundry is detected and the eccentric detection step of determining whether or not to enter the dehydration by comparing the eccentricity and the capacity of the eccentricity, and a single load determination step of determining whether the laundry is a single load And, if the laundry is determined as a single load in the single load determination step, the eccentric capacity reset step of resetting the eccentric capacity to facilitate the dehydration of the laundry, and the water draining step of removing the water contained in the laundry; When the eccentric amount of the laundry that has passed through the water draining step is less than the eccentric capacity, the laundry is dehydrated, and the water contained in the laundry is removed by the water draining step, thereby reducing the amount of eccentric laundry. The eccentric allowance is also greatly reset, making it easy to enter the dehydration step from the eccentric detection step. There is an advantage.

Washing machine, drum, driving motor, laundry, single load, dehydration, eccentricity, eccentricity

Description

Spin control method of washing machine

1 is a flow chart illustrating a dewatering method of a drum washing machine according to the prior art;

2 is a cross-sectional view showing the configuration of a drum washing machine according to the present invention;

3 is a flowchart illustrating a dewatering method of a drum washing machine according to the present invention;

4 is a graph showing a change in the motor RPM during the dehydration operation of the drum washing machine according to the present invention;

5 is a graph showing a change in motor RPM for the main section when the laundry is a single load during the dehydration operation of the drum washing machine according to the present invention;

DESCRIPTION OF THE REFERENCE NUMERALS

2: cabinet 4: spring

6: damper 8: tub

10: drum 12: lifter

14: drive motor 16: cabinet cover

18: Door 20: Control Panel

22: Hall sensor 24: Top plate

32: water supply hose 34: water supply valve

30: water supply device 36: detergent supply device

42: drain hose 44: drain pump

40: drainage

The present invention relates to a washing machine dehydration method, and more particularly, to a dehydration method of a washing machine capable of accurately determining whether a laundry is a single load and shortening the dehydration entry time of the laundry with a single load.

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

The washing machine includes a tub in which water or detergent is accommodated, a drum rotatably installed in the tub, a plurality of handmade drums in which laundry is received, and water or detergent is passed therethrough, and installed in the tub to transmit rotational driving force to the drum. It is configured to include a drive device.

In the washing machine configured as described above, when water and detergent are supplied to the inside of the tub, the drum is inverted left and right at a low speed by the driving device so that the laundry in the drum is washed and clean water is drained after the water and the detergent in the tub are drained. When re-supplied, the drum is reversed left and right at low speed by the driving device to rinse the washed laundry. When the water in the tub is drained, the drum is rotated at high speed by the driving device so that the rinsed laundry is centrifugally dewatered.

1 is a flow chart illustrating a dewatering method of a drum washing machine according to the prior art.

The dewatering method of the drum washing machine according to the prior art, as shown in Figure 1, the amount of the rinsed laundry is detected and the first, second, third eccentric allowance and the dehydration time and dehydration ALPM according to the amount is set (See S1).

In addition, since the primary eccentricity detection of the laundry disposed in the drum is performed, the primary eccentricity is determined by detecting the amount of the primary eccentricity of the laundry and comparing it with the primary eccentric allowance. (S2, S3 Reference)

That is, if the primary eccentricity is less than the primary eccentricity capacity, the drum is rotated at a high speed in the first gantal AlMPE and the dehydration of the laundry proceeds easily. After the inflating of the laundry is inverted, the first eccentric amount of the laundry is re-detected to re-determine whether or not the primary gantha is entered (see S4 and S5).

As described above, when the primary deprivation of the laundry is completed, the secondary eccentricity detection of the laundry is performed. After the secondary eccentricity of the laundry is sensed, it is determined whether to enter the secondary deprivation by comparing with the secondary eccentric allowance. (See S6, S7)

That is, if the secondary eccentricity is less than the secondary eccentric capacity, the drum is rotated at high speed by the secondary gantal AlpM to facilitate dehydration of the laundry. If the secondary eccentricity is greater than or equal to the secondary eccentric capacity, the drum is left and right at low speed. When the laundry is inflated while being inverted, the secondary eccentricity of the laundry is re-detected to re-determine whether or not the secondary gantha is entered (see S8 and S9).

Thereafter, when the secondary deintercalation of the laundry is completed, the third eccentricity detection of the laundry is performed. After the third eccentricity of the laundry is detected, the third eccentricity is compared with the third eccentricity of the laundry. (See S10 and S11).

That is, when the third eccentricity is less than the third eccentric allowance, the drum is rotated at high speed by the main talphalm, and the dehydration of the laundry proceeds. After the laundry is foamed, the third eccentric amount of the laundry is re-detected to re-determine whether or not the main entrance is entered. (See S12 and S13.)

However, the dehydration method of the washing machine according to the prior art is very large amount of the eccentricity of the laundry when the laundry put into the drum is a single load consisting of a single number, so that when the eccentricity of the laundry is detected, There is a problem that the entry time is greatly increased or entry itself is impossible.

That is, if the laundry put into the drum is a single load, since the laundry is always eccentrically positioned inside the drum, the amount of eccentricity of the laundry is sensed very large, and since the laundry is a single piece, the effect of removing the amount of eccentricity due to inflated is insignificant. Done.

Therefore, the number of detection of the primary, secondary, and tertiary eccentricity of the laundry is greatly increased, and the number of folds of the laundry is greatly increased when the primary, secondary, and third eccentricities of the laundry are greatly increased. This increases there is a problem that the dehydration time of the washing machine is greatly increased.

The present invention has been made to solve the above problems, an object of the present invention is to determine whether the laundry is a single load accurately before entering the dehydration, the washing machine can be easily dehydrated laundry determined to be a single load To provide a dehydration method.

In addition, another object of the present invention is to provide a dewatering method of a washing machine in which the dehydration entry time of a single load laundry can be shortened and the dehydration time of the washing machine can be reduced.

Dehydration method of the washing machine according to the present invention for realizing the above object is an eccentric detection step of determining whether the eccentric amount of laundry is detected and whether or not dehydration is entered by comparing the eccentric amount and the eccentric allowance capacity, and determine whether the laundry is a single load The single load determination step, and if the laundry is determined to be a single load in the single load determination step, the eccentric capacity reset step of resetting the eccentric capacity to facilitate the dehydration of the laundry, and the water contained in the laundry is removed The dehydration step and, if the eccentricity of the laundry after the dewatering step is less than the eccentric allowance capacity, characterized in that it consists of a dehydration step that the laundry is dewatered.

In the eccentric detection step, if the eccentricity is less than the eccentric capacity, the dehydration step is entered. If the eccentricity is more than the eccentric capacity, the eccentric amount is re-detected after the laundry is overlaid, and in the single load determination step, the eccentricity is detected. If the detection frequency of the eccentric amount is more than the set number of times, the laundry is determined as a single load.

In the eccentric allowance reset step, the eccentric allowance is reset in a direction in which the eccentric allowance is increased so that laundry determined to be the single load is easily entered by dehydration.

In the draining step, the laundry is centrifugally dehydrated for a predetermined period of time as the set ALPM.

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

2 is a cross-sectional view showing the configuration of a drum washing machine according to the present invention.

As shown in FIG. 2, the drum washing machine according to the present invention includes a cabinet 2 forming an exterior of the drum washing machine 1, and a spring 4 and a damper 6 inside the cabinet 2. The tub 8 is installed to be buffered and accommodates the wash water therein, and a plurality of holes 10A rotatably disposed inside the tub 8 and through which the wash water passes and laundry is accommodated therein. A drum 10 and a lifter 12 installed on the inner side of the drum 10 to lift laundry to a certain height so that laundry can fall by gravity when the drum 10 rotates, and the tub A drive motor (14) installed at the rear of (8) to rotate the drum (10), a cabinet cover (16) mounted at the front of the cabinet (2), and having a laundry entrance (16A) at the center thereof; Rotatingly installed in the cabinet cover 16, the laundry door opening 16A is opened. The door 18 and the cabinet cover 16 is disposed above the control panel 20 to display the operation of the drum washing machine 1 and to control the operation of the drum washing machine 1, and the driving motor ( Is installed on one side of 14) comprises a plurality of Hall sensors 22 for detecting the ALPM and the rotation angle of the drive motor (14).

Here, a top plate 24 is mounted on an upper surface of the cabinet 2, and a water supply hose 32 and a water supply valve are provided below the top plate 24 to supply water from the outside to the inside of the tub 8. A water supply device 30 composed of 34 is provided.

The detergent supply device 36 is installed on the water supply passage of the water supply device 30 so that detergent can be supplied to the tub 8 together with the water supplied by the water supply device 30.

In addition, a drainage device 40 including a drain hose 42 and a drainage pump 44 is installed at the lower side of the tub 8 to discharge the washing water used for washing and rinsing to the outside.

The plurality of Hall sensors 22 generate a pulse signal according to the position change of the driving motor 14, and the pulse and the rotation angle of the driving motor 14 are measured by the pulse signal.

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

First, the laundry is introduced into the drum 10 through the laundry inlet 16A of the drum washing machine 1, and then the door 18 is closed so that the laundry inlet 16A is sealed, and the drum 10 is closed to the drum 10. A proper amount of detergent is added to the detergent supply device 36 according to the laundry.

When the drum washing machine 1 as described above is operated and operated through the control panel 20, the quantity of laundry put into the drum 10 is sensed, and a washing course, a washing time, a rinsing time, a water supply level, etc., are detected according to the quantity. The same washing method is set.

The water supply valve 34 of the water supply device 30 is opened to supply water to the inside of the tub 8, and the detergent introduced into the detergent supply device 36 is water supplied by the water supply device 30. In the mixed state with the tub 8 is supplied together.

When the wash water is stored up to a predetermined level in the tub 8, after the water supply valve 34 is sealed, the drum 10 is inverted left and right by the drive motor 14 to a low speed washing ALPM to wash the laundry. Done.

At this time, the laundry is raised to a certain height by the drum 10 and the lifter 12 and then dropped by gravity, the contamination is removed by the free fall force of the laundry and the cleaning power of the detergent.

When the laundry is washed for a predetermined washing time, the drain pump 44 of the drainage device 40 is driven while the drum 10 is stopped, so that the wash water in the tub 8 is drained. Through the drum is drained to the outside of the washing machine (1).

When the washing stroke is completed as described above, the drum 10 is rotated by the drive motor 14 to the dewatering AlPM so that the wash water contained in the laundry is centrifugally dewatered.

Then, the water supply valve 34 is opened so that clean water is supplied again to the inside of the tub 8 to the set water supply level, and the drum 10 is inverted left and right by the rinsing ALPM at a low speed by the driving motor 14. The laundry is then rinsed for the set rinsing time.

Thereafter, the drain pump 44 of the drainage device 40 is driven so that the water used for rinsing is drained out of the drum washing machine 1 through the drain hose 30. In addition, the rinsing stroke is repeatedly performed several times up to the set number of rinsing cycles.

When the rinsing stroke as described above is completed, the drum 10 is rotated to a high speed dewatering AlPM by the drive motor 14 to completely centrifuge the water of the laundry.

At this time, as the laundry is centrifugally dewatered, water is discharged to the tub 8 through the hand 10A of the drum 10, and the water discharged to the tub 8 is discharged by the drainage device 40. Drained to the outside of the drum washing machine (1).

Figure 3 is a flow chart illustrating a dewatering method of the drum washing machine according to the present invention, Figure 4 is a graph showing a change in the motor ALPM of the drum washing machine according to the present invention, Figure 5 is a drum washing machine according to the present invention This is a graph showing the change of motor RF for the main section when the laundry is a single load during the dehydration administration of.

3 to 5, the dewatering method of the drum washing machine according to the present invention, the amount of laundry to be put into the drum 10 is sensed, the amount of water to determine the optimal dewatering time, dewatering AlpM, eccentricity capacity, etc. of the laundry Detecting step (Section A), the eccentricity detection step (B1, B2, B3 section) is determined whether the eccentricity of the laundry is detected by the eccentric amount and the eccentric allowance capacity, and the eccentric detection step (B1, B2, B3 section) in the single load determination step of determining whether the single load according to the detection frequency of the eccentric amount, and the eccentric allowance is reset to facilitate the dehydration of the laundry if the laundry is determined to be a single load in the single load determination step Tolerance amount reset step, the water draining step (E section) to remove the water contained in the laundry, and the eccentric amount of the laundry after the water draining step (E section) is less than the eccentric allowance capacity Characterized by consisting of a dewatering step (D1, D2, D3 interval) at which the laundry dehydrated.

In the quantity detection step (Section A), the drum 10 is accelerated by the driving motor 14 to reach the quantity detection ALPM (rpm1), and when the quantity detection ALPM (rpm1) is reached, the driving motor 14 is driven. It is turned off after being maintained for a predetermined time in the quantity detection ALPM (rpm1). (See S20)

At this time, the pulse width modulation (PWM) duty value and the rotational rotation angle after the drive motor 14 is turned off by the Hall sensor 22 are measured when the constant speed is maintained at the speed detection ALPM (rpm1). The amount of laundry put into the drum 10 is sensed.

The eccentric detection step (B1, B2, B3 section) detects the first amount of eccentricity of the laundry, and compared with the first eccentric allowance capacity of the dehydration step (D1, D2, D3 section) of the first intermittent step (D1 section) Detecting the first eccentricity detection step (B1 section) and the second eccentricity of the laundry after the first deintercalation step (D1 section) to determine whether the entry of the dehydration step (D1, Detecting the second eccentricity detection step (B2 section) to determine whether to enter the second deprivation step (D2 section) of the D2, D3 section) and the third eccentricity of the laundry that went through the second interdepartment step (D2 section) It is divided into a third eccentric detection step (B3 section), which determines whether to enter the main stage (D3 section) of the dehydration step (D1, D2, D3 section) compared with the third eccentric allowance.

In the first eccentric detection step (B1 section), the drum 10 is accelerated by the driving motor 14 to reach an eccentricity sensing ALPM (rpm2) larger than the quantity detection ALPM (rpm1), and the eccentricity sensing ALPM (rpm2). When the drive motor 14 is maintained for a predetermined time in the eccentric sense arpm (rpm2) and then turned off, the drum (a ripple rpm) when the eccentric sense arpm (rpm2) is maintained at a constant speed 10) detects the primary eccentricity of the laundry accommodated inside (see S21).

As described above, if the primary eccentricity detected in the primary eccentric detection step (B1 section) is greater than or equal to the primary eccentric capacity, the primary eccentric amount is again performed after the inflated to remove the eccentricity of the laundry (C section). It is redetected and compared with the primary eccentric allowance (see S22 and S26).

On the other hand, if the first eccentricity detected in the first primary eccentricity detection step (B1 section) or the first eccentric amount detected after the inflated (C section) is less than the first eccentric allowance, the first eccentricity The process enters step D1.

On the other hand, in the single load determination step, if the number of times the primary eccentricity of the laundry is detected in the first eccentricity detection step (B1 section) is more than a set number of times, the laundry is determined as a single load.

That is, in the single load determination step, if the primary eccentric amount is less than the primary eccentric capacity in the state that the eccentricity detection frequency is not reached in the first eccentricity detection step (B1 section), the laundry load is a single load. If not, the laundry is determined as a single load if the primary eccentric amount is continuously detected above the primary eccentric capacity until the eccentricity detection frequency reaches the set number of times in the primary eccentricity detection step (B1 section).

3 and 4, when it is determined that the laundry is not a single load in the single load determination step, the dehydration step (D1, D2, D3 section) of the first inter-deprivation step (D1 section) is entered Primary dewatering of laundry proceeds.

That is, in the first intermittent step (D1 section), the drum may be driven by the driving motor 14 to reach the first intermittent altitude (rpm3) higher than the eccentricity detection ALPM (rpm2) of the first eccentric detection step (B1 section). 10) is accelerated and the drive motor 14 is maintained for the first time as the first gantal Alphm (rpm3) and then decelerated again to the eccentric sensing Alp (rpm2). (See S27)

In addition, when the first intermittent step (D1 section) is finished and the driving motor 14 is decelerated by an eccentric detection ALPM (rpm2), the second eccentric detection step (B2 section) is performed to the second intermittent step ( D2 section) entry is determined.

In the second eccentric detection step (Section B2), the second eccentric amount of the first dewatered laundry is sensed by the rpm ripple when the eccentric sensing ALPM (rpm2) is maintained at a constant speed. )

If the secondary eccentricity detected in the secondary eccentricity detection step (B2 section) is larger than the secondary eccentricity allowance as described above, in the same manner as the primary eccentricity detection step (B1 section), inflating the laundry is removed. After the second eccentric amount is detected again, the second eccentricity is compared with the second eccentric allowance (see S29 and S30).

On the other hand, if the secondary eccentricity detected in the first secondary eccentricity detection step (B2 section) or the secondary eccentricity detected after the inflated is less than the secondary eccentricity capacity, the secondary intervention step (D2 section) ) Is entered.

The drum 10 is driven by the driving motor 14 to reach the secondary gantal AlpM (rpm4) higher than the first gantal AlpM (rpm3) of the first gantal step (D2 section). When the acceleration is reached and the secondary gantal AlpM (rpm4) is reached, the driving motor 14 is decelerated back to the eccentricity sensing Alpm (rpm2), and the secondary simple dewatering of the laundry proceeds (see S31).

In addition, when the driving motor 14 is decelerated by the eccentricity sensing ALPM (rpm2) and the secondary de-interval step (D2 section) is finished, the third eccentric detection step (B3 section) is performed to the main step (D3 section). ) Entry is determined.

In the third eccentric detection step (Section B3), the third eccentric amount of the laundry which has been dewatered second by the RPM ripple when the eccentric sensing ALPM (rpm2) is maintained at a constant speed is detected. )

When the third eccentricity detected in the third eccentric detection step (B3 section) is larger than the third eccentric allowance, as described above, in the same manner as the first eccentric detection step (B1 section), the inflated laundry is removed. Afterwards, the third eccentricity is redetected and compared with the third eccentric allowance (see S33 and S34).

On the other hand, if the third eccentricity detected in the first third eccentricity detection step (B3 section) or the third eccentricity detected after the inflated is less than the third eccentric allowance, the separation step (D3 section) Is entered.

In the main step (D3 section), the drum 10 is accelerated by the driving motor 14 to reach the main step AlpM (rpm5) higher than the second step Galtal (RPm2) of the second intermittent process (D2 section) When the main motor RPM is reached, the driving motor 14 is turned off after maintaining the main motor RPM for a predetermined time. (See S35)

As described above, as the laundry is centrifugally dehydrated at a high speed ALPM (rpm3) (rpm4) (rpm5) in the first stage depilation step (D1 section), the second stage depilation step (D2 section), and the separation step (D3 section). Most of the water is removed from the laundry after the (D3 section).

3 and 5, when the laundry is determined to be a single load in the single load determination step, the eccentric allowance is reset so that laundry is easily entered into the dehydration step (D1, D2, D3 section). After the step and the draining step (E section) is performed, the eccentric detection step (B1, B2, B3 section) and the dehydration step (D1, D2, D3 section) are performed.

That is, in the eccentric allowance resetting step, the first eccentric allowance and the second eccentricity can be easily and quickly entered into the first deprivation step (D1 section), the second deprivation step (D2 section), and the main step (D3 section). The allowable amount and the third eccentric allowance are reset in the direction of increasing (see S24).

When the eccentric allowance is changed to a value larger than the existing eccentric allowance in the eccentric allowance reset step as described above, the laundry consisting of the single load is always eccentrically located inside the drum 10 and the effect of the inflating is almost There is no dehydration step (D1, D2, D3 section) in the first, second, and third eccentric detection step (B1, B2, B3 section) even if the first eccentricity, the second eccentricity, and the third eccentricity are largely detected. Entry into the furnace is smoothly performed.

In addition, in the water draining step (Section E), the drum 10 is driven by the driving motor 14 to reach a water draining alpem (rpm6) higher than the eccentricity sensing ALPM (rpm2) of the first eccentric detection step (B1 section). When the water is accelerated and the water draining ALPM (rpm6) is reached, the driving motor 14 is maintained for the water draining AlPM (rpm6) for a predetermined time and then decelerated again to centrifugally dewater the water from the laundry (see S25).

At this time, the water draining AlPM (rpm6) is preferably set to the higher than the eccentricity sensing ALPM (rpm2) and lower than the secondary gantal AlPM (rpm4).

In the water draining step (E section) as described above, since a considerable amount of water contained in the laundry is centrifuged in advance before the dehydration step (D1, D2, and D3 sections), the first eccentric amount is greatly reduced and the first liver deprivation. Entry to the step (section D1) becomes very smooth.

On the other hand, the process of the first stage deprivation step (D1 section) and the second stage deprivation step (D2 section) and the main stage (D3 section) or the second eccentric detection step (B2 section) and the third eccentric detection step (B3 section) Since the process of) is similar to the case where the laundry is not a single load, except that the first eccentric allowance, the second eccentric allowance and the third eccentric allowance are changed, a detailed description thereof will be omitted.

Therefore, the laundry consisting of the single load is shortened the time to enter the dehydration step (D1, D2, D3 section) by the eccentric capacity reset step and the water draining step (E section), the overall dehydration time of the washing machine Very short.

As described above, the dewatering method of the washing machine according to the present invention has been described with reference to the illustrated drawings. However, the present invention is not limited to the above-described embodiments and drawings, and various modifications may be made by those skilled in the art within the technical scope of the present invention. Of course it is possible.

That is, in the present invention, the setting number of the eccentricity detection frequency, which is a reference for determining whether the laundry is a single load in the single load determination step, is displayed three times, but the setting frequency may be variously changed according to the operating conditions of the washing machine. Of course.

In addition, the single load determination step, the eccentric capacity reset step and the water draining step of the present invention can be carried out not only before the first stepping step but also the second stepping step and the stepping step.

In the dehydration method of the washing machine according to the present invention operated as described above, if the laundry is determined to be a single load in the single load determination step, the eccentric capacity is greatly reset and the water draining step of removing the water contained in the laundry is performed. The water contained in the laundry is removed by the water draining step to reduce the amount of eccentricity of the laundry consisting of a single load, and the eccentric allowance is also greatly reset, thereby easily entering the dehydration step in the eccentric detection step.

In addition, in the single load determination step, since it is determined whether the laundry is a single load according to the number of eccentricity detection, there is an advantage that the single load of the laundry is accurately and quickly determined before entering the dehydration step.

In addition, since it is determined whether the laundry is a single load accurately and quickly, and the laundry determined to be a single load is easily entered into the dehydration step, the time taken for the laundry consisting of the single load to enter the dehydration step is shortened. There is an advantage that the dehydration time is reduced.

Claims (5)

An eccentricity sensing step of detecting an eccentric amount of laundry and determining whether or not dehydration is to be entered by comparing the eccentricity and the eccentric capacity; A single load determining step of determining whether the laundry is a single load; An eccentric allowance resetting step of resetting the eccentric allowance to facilitate dehydration of the laundry when the laundry is determined to be a single load in the single load determination step; A water draining step of removing water contained in the laundry; Dehydration method of the washing machine comprising a dehydration step of dehydrating the laundry if the amount of eccentric laundry after the water draining step is less than the eccentric allowance capacity The method according to claim 1, In the eccentric detection step, if the eccentricity is less than the eccentric capacity, the dehydration step is entered. If the eccentricity is more than the eccentric capacity, the laundry is swollen and the eccentric amount is re-detected. In the single load determination step, if the eccentricity detection frequency in the eccentricity detection step is more than the set number of times, the laundry is dewatering method characterized in that the laundry is determined as a single load. The method according to claim 1 or 2, In the eccentric allowance reset step, the washing machine dewatering method characterized in that the laundry is determined to be reset in the direction in which the eccentric allowance is increased so that the laundry load is easily entered into the dehydration. The method according to claim 1 or 2, The draining step is a dehydration method of the washing machine, characterized in that the laundry is centrifugal dehydration for a predetermined time with a predetermined water draining RMP. The method of claim 4, The water draining RPM, The dewatering method of the washing machine, characterized in that it has a higher value than the ALPM in the eccentric detection step and lower than the ALPM in the dehydration step.

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