KR101019472B1 - washing method - Google Patents

Abstract

The present invention relates to a method of operating a washing machine, which enables washing without using detergent, thereby inducing the saving of detergent and reducing waste of tap water, and washing for a long time without using detergent. The present invention relates to a laundry method capable of preventing the problem of discoloration of laundry generated according to the optimum through time control for each process.

To this end, the present invention includes a first step of performing a pre-wash to remove the water-soluble contamination; A second step of performing main washing to remove a part of inorganic and organic substances while gradually increasing the washing level after the preliminary washing; A third step of performing rinsing of the laundry at the normal water level with respect to the amount of laundry; In addition, a washing method is provided by sequentially performing a fourth step: completely dehydrating the washed rinsed laundry.

Description

Washing method}

1 is a longitudinal sectional view showing the internal structure of a typical washing machine

2 is a conceptual diagram showing the implementation of the washing method according to the present invention

3 is a flow chart showing a control process for pre-washing washing method according to the invention

Figure 4 is a flow chart showing a control process for the main washing of the washing method according to the invention

Figure 5 is a flow chart illustrating in more detail the washing process of the control process for the main washing of the laundry method according to the present invention

6 is a flow chart showing a control process for rinsing in the washing method according to the invention

7 is a flow chart showing a control process for the final dewatering of the washing method according to the invention

The present invention relates to a washing machine field, and more particularly, to a washing method of a washing machine that controls washing to be possible without using a detergent.

In general, a washing machine is a device that performs washing by a complex action, such as the friction between the water flow and the laundry according to the forced flow of the wash water, the emulsification of the detergent, and the impact action of the laundry wing on the laundry.

Such a conventional washing machine includes a main body 10, a washing outer tub 20, a washing inner tub 30, a washing wing 40, and a driving force transmitting means, as shown in FIG. 1. do.

Here, the laundry outer tub 20 is elastically supported inside the body, the wash water is stored.

The washing inner tub 30 is rotatably mounted at an appropriate interval inside the washing tub 20, and a plurality of through holes 31 are formed on the outer circumferential surface thereof so as to communicate with the inner space of the washing tub 20. do.

In addition, the washing blade 40 is rotatably provided at the center of the inner bottom surface of the washing inner tub (30).

The driving force transmission means includes a clutch 50, a driving motor 60, and a belt 70.

Here, the clutch 50 is fixedly mounted on the bottom surface of the laundry outer tub 20 and is condensed with the washing blade 40 and the washing tub 30, optionally the washing blade 40 or the washing. The inner tub 30 is rotated.

In addition, the drive motor 60 is installed on one side of the outer side bottom of the washing tub 20, and the clutch 50 is provided to enable power transmission.

On the other hand, the upper side of the main body 10 is connected to the water supply hose 12 is supplied with the washing water required for washing, the lower portion of the outer tub 20 is connected to the drain hose 14 for washing the wash water.

Therefore, when the laundry mode is selected in a state in which laundry and a predetermined amount of detergent are put into the washing tub 30, washing, rinsing, and dehydration are automatically performed for a predetermined time according to a control signal of the controller (not shown).

That is, when the washing mode is selected, the water supply valve 11 installed in the water supply hose 12 is opened, and the washing water to be used for washing is supplied into the washing inner tub 30 through the water supply hose 11.

At this time, the washing tub is in communication with the interior of the washing tub 20 by a plurality of through-holes 31 formed along its outer circumferential surface wash water supplied into the washing tub 30 as described above Through each through-hole 31 of the inner tank 30 is introduced into the laundry outer tank 20.

When the wash water is filled in the washing outer tub 20 and the washing inner tub 30 by this process, the water supply valve 11 is closed and no more water is supplied to the outer bottom surface of the washing tub 20. The fixed drive motor 60 drives the clutch 50 while driving in the forward and reverse directions, and the clutch 50 selectively rotates the washing inner tub 30 and the washing blade 40 according to each washing stroke.

Accordingly, the laundry in the washing inner tub 30 is washed by the rotational force of the washing blade 40, the frictional force with the inner circumference of the washing inner tub 30, the decomposition force of the detergent, and the like.                         

When the washing operation is completed by the above-described action, the drain valve 13 installed in the drain hose 14 opens under the control signal of the controller (not shown), and thus the washing in the outer tub 20 and the washing tub 30 is performed. Washing water that was used in is drained to the outside of the main body 10 through the drain hose (14).

Thereafter, a rinsing stroke is performed in which the new wash water is rinsed several times as the water is supplied into the washing tub 30.

At this time, between each rinsing and rinsing, the dehydration for a short time and the re-supply of new wash water are performed together with the drainage, so that the control is made so that a smoother rinsing is performed.

In addition, after such a rinsing stroke is completed, the final dehydration stroke is performed, and during the final dehydrating stroke, the washing tank 30 and the washing wing 40 are naturally drained to the outside of the washing water used for rinsing. Is rotated at high speed.

Accordingly, while the laundry in the washing tub 30 is pushed outward by the centrifugal force due to the high speed rotation of the washing tub 30 and the washing blade 40, the water contained in the laundry passes through the laundry tub 30 ( 31) through the wash tub 20 is exited.

In this case, since the drain valve 13 installed at the lower portion of the laundry outer tub 20 is opened, the water discharged from the laundry is drained to the outside through the drain hose 14.

The dehydration stroke is performed for a set time, and when the dehydration stroke is completed, all washing processes are completed by completely stopping the operation of the washing machine.

The conventional method of washing for washing as described above usually requires the addition of detergent.

However, the above detergent has a cost burden for its purchase, and has a problem of providing a serious impact on environmental pollution.

In addition, since the rinsing administration takes a long time due to the addition of the detergent, there is a problem that waste of tap water is caused.

Of course, you can simply wash with tap water without the use of detergent, but if you wash through the existing washing algorithm has had a problem such as yellowing of white clothes.

In particular, in the case of clothing contamination, considering that each of the contaminants removed at a time difference exists, the contaminants that have been removed first have a problem of being reattached to other laundry.

Therefore, there is a need for a laundry driving algorithm capable of preventing re-contamination of laundry without using detergent and preventing yellowing of white clothes.

The present invention has been made to solve the above-mentioned conventional problems, by changing the operation algorithm for washing to enable washing without using a detergent can lead to saving of detergent and to reduce the waste of tap water The purpose is to make it.

In particular, the present invention has an object to be able to prevent the problem of the discoloration of the laundry generated by washing for a long time without using a detergent to the maximum through the optimum time control for each process.

The present invention for achieving the above object is a first step of performing a preliminary washing to remove water-soluble contamination; A second step of performing main washing to remove a part of inorganic and organic substances while gradually increasing the washing level after the preliminary washing; A third step of performing rinsing of the laundry at the normal water level with respect to the amount of laundry; In addition, a washing method is provided, wherein the fourth step of completely dehydrating the rinsed laundry is performed sequentially.

Hereinafter, with reference to Figures 2 to 7 showing the laundry method of the present invention as described above in more detail as follows.

2 is a flowchart illustrating a control process of the washing machine for washing the detergent of the present invention.

That is, the detergent-free washing method of the present invention is largely divided into a control step for pre-washing, a control step for main washing, a control step for rinsing, and a control step for dehydration.

Here, the control step for the pre-washing is a control process performed to remove the water-soluble contamination is to be able to completely remove the contaminants to be removed first, such as light pollution to achieve re-contamination prevention.

The control step for preliminary washing is operated including a first water supply step, a first stirring step, and a first balancing step.

The first water supply step is a step of supplying the wash water up to the first set water level set according to the amount of laundry.

At this time, the first set water level is a normal water level basically set according to the amount of laundry.

In addition, the first stirring step is a step of driving at least one of the washing tank or the washing blade at the set water level to stir for any first predetermined time.

At this time, the first predetermined time is set to a time of about 4 minutes when the amount of laundry is a normal amount of detergent added to the amount of laundry.

In addition, the first balancing step is a step of driving at least one of the washing tank or the washing blade at a shorter period than the driving cycle for normal agitation for a second predetermined time when the stirring for the predetermined time is completed. .

At this time, the second predetermined time is set to a time of about 1 minute when the amount of laundry is a normal amount of detergent added to the amount of laundry.

In addition, the control step for the main washing of the control method for detergent-free washing of the present invention is to be able to remove a portion of the inorganic and organic while gradually increasing the washing water level after the control step for the preliminary washing.

The control step for the main washing is operated including a first drainage step, a first dewatering step, a second water supply step, and a washing step.

The first drainage step is a process of draining the wash water used for the preliminary washing.

In addition, the first dehydration step is a process of dehydrating the laundry when the drainage is completed.

At this time, the dehydration process of the step is carried out by rotating the washing tub at a low rotational speed compared to the maximum rotational speed for normal dehydration, the rotational speed is controlled to achieve approximately 300 ~ 1200RPM.

In addition, the second water supply step is a process of supplying water by a predetermined second predetermined water level when the dehydration process is completed.

At this time, the second set water level is a water level equal to or less than half the water level based on the normal water level set according to the amount of laundry.

In addition, the washing step is a process of performing washing while performing additional water supply for each time period set in the state where water supply is completed by the second set water level.

First, the washing step includes a second stirring step, a third water supply step, a third stirring step, a second balancing step, a fourth water supply step, a fourth stirring step, a third balancing step, and a fifth The water supply step, the fifth stirring step, and the fourth balancing step are performed.

Here, the second stirring step is a process of stirring the laundry for a third set time in a state of supplying water to the second set water level, wherein the third set time is the amount of laundry is the normal amount of detergent added to the amount of laundry In this case, the time is set to about 2 minutes.

In addition, the third water supply step is a process of performing additional water supply by an arbitrary third set water level.

At this time, the third set water level is about half the water level based on the normal water level set according to the amount of laundry.

In addition, the third stirring step is a process of performing agitation for a fourth set time.

In this case, the fourth predetermined time is a time set to about 2 minutes when the amount of laundry is a normal amount of detergent added to the amount of laundry.

In addition, the second balancing step is a process of driving while inverting at least one of the washing tub or the washing blade for a fifth predetermined time in a short cycle compared to the driving cycle for normal agitation.

In this case, the fifth predetermined time is a time set to about 1 minute when the amount of laundry is a normal amount of detergent to the laundry amount.

In addition, the fourth water supply step is a process of performing additional water supply as much as the fourth predetermined level during or after the second balancing step.

At this time, the fourth set water level is at least about half the water level and at the same level below the normal water level, based on the normal water level set according to the amount of laundry.

In addition, the fourth stirring step is a process of performing stirring during the fourth water supply step or for a sixth set time after the execution.

At this time, the sixth set time is a time set to about 2 minutes when the amount of laundry is a normal amount of detergent to the laundry amount.

In addition, the third balancing step is a process of driving at least one of the washing tub and the washing blade during a seventh set time after the fourth stirring step is performed at a shorter period than the driving period of normal stirring.

At this time, the seventh set time is a time set to about 1 minute when the amount of laundry is a normal amount of detergent to the laundry amount.

In addition, the fifth water supply step is a process of performing additional water supply as much as the fifth set water level during or after the third balancing step.

At this time, the fifth set water level is a water level corresponding to the normal water level set according to the amount of laundry.

In addition, the fifth stirring step is a process of performing stirring during the fifth water supply step or during the eighth set time after the execution.

In this case, the eighth predetermined time is a time set to about 2 minutes when the amount of laundry is a normal amount of detergent added to the amount of laundry.

In addition, the fourth balancing step is a process of driving at least one of the washing tub or the washing blade during a ninth set time after the fifth stirring step is performed at a shorter period than the driving period for normal agitation.

In this case, the ninth predetermined time is a time set to about one minute when the amount of laundry is a normal amount of detergent added to the amount of laundry.

And, the control step for the rinsing of the control method for detergent-free washing of the present invention is to wash the laundry to perform the main washing at the normal water level for the amount of laundry.

The control step for rinsing is operated including a second drainage step, a second dehydration step, a sixth water supply step, a sixth stirring step, and a fifth balancing step.

The second drainage step is a process of draining the wash water in which the main washing is performed.

In addition, the second dehydration step is a process of dehydrating laundry by rotating the washing tub at a lower rotational speed than the maximum rotational speed for normal dehydration after draining the wash water.

In addition, the sixth water supply step is a process of performing a water supply to the normal water level basically set according to the amount of laundry after the dehydration of the laundry.

In addition, the sixth stirring step is a process of performing agitation during or after the sixth water supply step for a tenth set time.

At this time, the tenth set time is a time set to about 2 minutes when the amount of laundry is a normal amount of detergent to the laundry amount.

In addition, the fifth balancing step is a process of driving at least one of the washing tub or the washing blade during the eleventh predetermined time after the sixth stirring step is performed in a shorter period than the driving period for normal agitation.

At this time, the eleventh predetermined time is a time set to about 1 minute when the amount of laundry is a normal amount of detergent to the laundry amount.

And, the control step for the dehydration of the control method for detergent-free washing of the present invention is to completely dehydrate the laundry that performed the rinsing.                     

The control process for such dehydration is operated including a third drainage step and a third dehydration step.

The third drainage step is a process of draining the wash water in which the rinsing is performed.

In addition, the third dehydration step is a process of completely dehydrating the laundry by rotating the washing tub at the maximum rotation speed for normal dehydration after draining the wash water.

Therefore, if the user performs the selection of the course to perform the detergent-free washing, the controller for controlling the operation of the washing machine controls the various control valves, the drive motor and the clutch, respectively, for the detergent-free washing of the present invention described above. The washing may be performed based on a series of control procedures.

If more specifically described with reference to the flow chart of Figures 3 to 7 as shown.

First, if a laundry course is selected for a detergent-free laundry in a state in which laundry is put in a washing tank, the controller checks the washing amount by measuring the weight of the laundry, and determines the normal water level according to the checked washing amount. .

At this time, the water supply determination according to the washing amount is a generally known process.

When the water supply level is determined, the water supply valve is controlled to perform water supply as much as the determined normal water supply level inside the washing tank (S110).

Along with this, when the water supply is completed while performing the stirring (S120) to remove the water-soluble contamination on the laundry.

Here, the agitation is a process of performing washing by inverting at least one of a washing tub or a washing blade.

Then, when the pre-washing by the stirring is completed (S130) it is operated to achieve a state in which the laundry in the laundry tub can proceed smoothly dehydration.

Here, the balancing process serves to release the tangled laundry that has undergone the stirring process as a process of inverting the washing tank or the left and right washing blades while forming a shorter period than the left and right inversion cycles for the agitation.

Thus, the preliminary washing is completed by the above series of processes.

When the pre-washing is completed, as shown in the flowcharts of FIGS. 4 and 5, the washing water inside the washing tank is completely drained (S210) and then dewatered (S220).

At this time, the dehydration is carried out by rotating the washing tub at a lower rotational speed than the maximum rotational speed for normal dehydration, so that the contaminants removed by pre-washing are not recontaminated into the laundry.

That is, the dehydration is a process to lightly remove the contaminated wash water, not the complete dewatering of the laundry.

When the dehydration is completed, the washing is carried out in earnest while repeating additional water supply in a predetermined cycle until the set normal water level (S230).

Hereinafter, the above-described washing process will be described in more detail.

First, water supply is performed to the level of less than half of the normal level when the water level is approximately normal (S231).                     

Here, if the normal water level is a high water level, the water level slightly higher than the middle of the normal water level is a medium water level, the water level slightly lower than the medium level is a low water level, and the water level lower than the low water level is a sewage water, the washing water supplied after the dehydration is completed. It is more preferable that the water supply level of the water supply is at least as low as the water level compared to the low water level.

Then, while the water supply to the sewage level is being performed (or after the water supply to the sewage level is completed), the agitation is again performed (S232) to gradually remove contaminants from the laundry.

Thereafter, when the agitation is operated for a predetermined time (2 minutes), the water is re-supplied (S233) while additionally the water is supplied to the low water level and agitation is performed again (S234).

In addition, when the above agitation is operated for a predetermined time (2 minutes), the balancing process is performed for about 1 minute and additional water supply to the medium water level is performed (S235).

Then, when the additional water supply to the medium water level is completed, the stirring is performed again for a set time (2 minutes) (S236).

In addition, when the agitation is completed, the balancing process is performed for about 1 minute and additional water supply up to a high water level (S237) is made, and the final agitation (2 minutes) (S238) and balancing (1 minute) at the high water level are performed. The process (S239) is performed sequentially to complete the main wash.

At this time, in the main laundry described above, washing is performed in which substantial inorganic or organic matter is removed.                     

When the main laundry is completed, rinsing is performed for the laundry as shown in the flowchart of FIG. 6.

At this time, the drainage (S310) and dehydration (S320) according to the wash water for the main washing is completed in order for the rinsing process, and the normal water level, that is, the rinsing (stirring) after the water supply (S330) up to a high water level is made 2 minutes (S340), balancing 1 minute (S350) is in progress, thereby performing a complete removal of the inorganic and organic.

Thereafter, as shown in the flowchart of FIG. 7, the final final dewatering of the laundry after draining (S410) is performed (S420), thereby completing the detergent-free washing.

At this time, the rotation of the washing tank for the final dewatering is made to the maximum RPM.

On the other hand, the time for each process in the above-described series of detergent-free washing process may have some changes depending on the amount of laundry and the water level of the wash water.

For example, if the amount of laundry is large, the setting time may be longer.

As described above, the present invention provides an washing method of a washing machine in which laundry can be washed without using detergent, thereby inducing the saving of detergent and reducing waste of tap water.

In particular, the present invention has the advantage that it is possible to prevent the discoloration of the laundry as much as possible by providing an operation time for each process so that the contaminated laundry is not washed for a long time without the detergent.

Claims (24)

A first step of performing prewashing to remove water-soluble contamination; A second step of performing main washing to remove a part of inorganic and organic substances while gradually increasing the washing level after the preliminary washing; A third step of performing rinsing of the laundry at the normal water level with respect to the amount of laundry; And, The fourth step of completely dehydrating the rinsed laundry is carried out sequentially, The first step is A first water supply step of supplying washing water to a first set water level set according to the amount of laundry, A first stirring step of driving at least one of a washing tub or a washing blade at a set water level to stir for an arbitrary first set time; When the agitation for the set time is completed, the first balancing step is performed to sequentially drive at least one of the washing tub or the washing vanes for a second predetermined time in a shorter period than the driving period for normal agitation. Washing method characterized in that. delete The method of claim 1, The first set water level of the wash water supplied in the first water supply stage is Washing method characterized in that the normal water level is basically set according to the amount of laundry. The method of claim 1, Washing method characterized in that the first setting time is set to 4 minutes when the amount of laundry during the execution of the first stirring step is the normal amount of detergent to the laundry amount. The method of claim 1, The washing method, characterized in that the second set time is set to one minute when the amount of laundry during the execution of the first balancing step is the normal amount of detergent to the laundry amount. The method of claim 1, The second step is A first drainage step of draining the wash water used for the preliminary washing; A first dehydration step of dewatering the laundry when the drainage is completed; A second water supply step of supplying water by an arbitrary second predetermined level when the dehydration is completed; Washing step of performing the washing while performing additional water supply for each set time period when the water supply by the second set water level: washing method characterized in that is performed by sequentially performed. The method of claim 6, The first dehydration step Washing method characterized in that carried out by rotating the washing tub at a low rotational speed compared to the maximum rotational speed for normal dehydration. The method of claim 7, wherein Washing method characterized in that the rotational speed of the washing tub for the first dewatering step is controlled to achieve 300 ~ 1200RPM. The method of claim 6, The second predetermined level of the wash water supplied in the second water supply stage is Washing method characterized in that the water level of less than half the water level based on the normal water level set according to the amount of laundry. The method of claim 6, The washing step A second stirring step of performing stirring for an arbitrary third set time at a second set water level supplied through the second water supply step; A third water supply step of performing additional water supply by any third set water level; A third stirring step of performing stirring for a fourth set time; A second balancing step of driving at least one of the washing tub or the washing vanes at a shorter period than a driving period for normal agitation for a fifth set time after the third stirring step is performed; A fourth water supply step of performing additional water supply by an arbitrary fourth predetermined level during or after the second balancing step; A fourth stirring step of performing stirring during the fourth water supply step or for a sixth predetermined time after the execution; A third balancing step of driving at least one of the washing tub or the washing vanes at a shorter period than a driving period for normal agitation for a seventh set time after the fourth stirring step; A fifth water supply step of performing additional water supply during the third balancing step or after the execution of the third balancing step by an arbitrary fifth predetermined level; A fifth stirring step of performing stirring during the fifth water supply step or for an eighth predetermined time after the execution; A fourth balancing step of driving at least one of the washing tub or the washing vanes for a ninth set time after the fifth stirring step is performed in a shorter period than a driving cycle for normal agitation; Way. The method of claim 10, Washing method characterized in that the third setting time is set to 2 minutes when the amount of laundry during the execution of the second stirring step is the normal amount of detergent to the laundry amount. The method of claim 10, The third set water level of the wash water supplied in the third water supply stage is Washing method characterized in that about half of the water level based on the normal level set according to the amount of laundry. The method of claim 10, When the amount of the laundry during the execution of the third stirring step is the normal amount of detergent for the laundry amount, the fourth set time is characterized in that the set to 2 minutes. The method of claim 10, When the amount of the laundry during the execution of the second balancing step is a normal amount of detergent for the laundry amount, the fifth set time is characterized in that the washing time is set to one minute. The method of claim 10, The fourth set water level of the wash water supplied in the fourth water supply stage is Washing method characterized in that more than half the water level and less than the normal level based on the normal level set according to the amount of laundry. The method of claim 10, And the sixth set time is set to two minutes when the amount of laundry during the fourth stirring step is a normal amount of detergent added to the amount of laundry. The method of claim 10, When the amount of the laundry during the performing of the third balancing step is a normal amount of detergent for the laundry amount, the seventh set time is set to one minute. The method of claim 10, The fifth set water level of the wash water supplied in the fifth water supply stage is Washing method characterized in that the normal water level set according to the amount of laundry. The method of claim 10, Washing method characterized in that the eighth set time is set to 2 minutes when the amount of laundry during the execution of the fifth stirring step is the normal amount of detergent to the laundry amount. The method of claim 10, Washing method characterized in that the ninth set time is set to one minute when the amount of laundry during the execution of the fourth balancing step is the normal amount of detergent added to the amount of laundry. The method of claim 6, The third step is A second drainage step of draining the wash water on which the main washing is performed; A second dehydration step of rotating the washing tub at a lower rotational speed than the maximum rotational speed for normal dehydration after draining the washing water to perform dehydration of the laundry; A sixth water supply step of supplying water to a normal water level basically set according to the amount of laundry after the dehydration of the laundry is completed; A sixth stirring step of performing stirring during the sixth water supply step or for a tenth set time after the execution; Washing, characterized in that proceeds to include: a fifth balancing step for driving at least one of the washing tank or at least one of the washing wing for a predetermined period of time after the sixth stirring step, compared to the driving cycle for normal stirring Way. The method of claim 21, Washing method characterized in that the tenth set time is set to 2 minutes when the amount of laundry during the sixth stirring step is the normal amount of detergent to the laundry amount. The method of claim 21, The washing method, characterized in that the eleventh setting time is set to 1 minute when the amount of laundry during the execution of the fifth balancing step is the normal amount of detergent for the laundry amount. The method of claim 21, The fourth step is A third drainage step of draining the washing water which has been rinsed; And a third dehydration step of completely dehydrating the laundry by rotating the washing tub at the maximum rotation speed for normal dehydration after the drainage of the wash water.

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