KR0172896B1 - Control method of rinsing of a washing machine - Google Patents

Abstract

The present invention relates to a rinsing control method of a washing machine, and when a conventional rinsing alone administration is selected, even if the laundry has completed the entire washing process, the dehydration administration of the rinsing stroke is performed again, thereby unnecessary waste of time and power, and the state of the laundry. In the rinsing control method of the washing machine in consideration of the fact that it was not possible to carry out the proper rinsing stroke according to the state of the laundry, irrespective of whether the drainage stroke was carried out regardless of the water level in the washing tank and the state of the laundry and the progress of the stroke. By performing rinsing or by rinsing from water supply, it is possible to prevent unnecessary operation by performing proper rinsing stroke according to the water level in the washing tank and the state of laundry and administrative progress when selecting the rinsing alone administration, and save rinsing time and washing water It is to reduce waste.

Description

Rinsing control method of washing machine

1 is a block diagram of a general washing machine.

2 is a driving circuit diagram of a general washing machine.

3 is a view schematically showing a general washing administration.

4 (a)-(c) are flow charts showing the operational flow of a general pre-washing administration.

5 and 6 are flow charts for performing the rinsing control method of the washing machine according to the present invention.

* Explanation of symbols for main parts of the drawings

1: water level sensor 2: water supply valve

3: drainage side 4: washing motor

5: rotating plate 6: washing tank

7: clutch 8: washing tub

11: display unit 12: key input unit

13: water level detection unit 14: load driving unit

15: quantity detection unit 16: power supply unit

17: micom

The present invention relates to a rinsing control method of a washing machine, and more particularly, to a rinsing control method of a washing machine to perform a proper rinsing according to the state of the laundry and the progress of the rinsing cycle during the rinsing process alone.

In general, the washing machine is a water level sensor (1) for detecting the water level in the washing tank (8), the water supply (2) for supplying the washing water to the washing tank (8) during washing and rinsing, washing water when rinsing or dehydrating Drainage side (3) for draining, when the power is received from the washing motor (4) when washing, the rotating plate (5) transfers power to the left and right turns alternately, and when dewatering in connection with the drainage (3) ) And a clutch 7 which transmits power so as to rotate the rotary plate 5 at the same time.

As shown in FIG. 2, the driving circuit includes a display unit 11 in which the progress of each stroke is displayed, a key input unit 12 for selecting and stopping each stroke, and a washing tank (1). 8) Quantity in the water level detector 13, water supply side 2, drainage side 3, load driving unit 14 for driving the load, such as the washing motor 4, the amount of water in the washing tank (8) The system receives the input of the quantity detection unit 15 for detecting power, the power supply unit 16 for supplying power to each system, the key input unit 12 and the water level detection unit 13, and the quantity detection unit 15. The microcomputer 17 is controlled by the microcomputer 17.

The overall washing administration progress in the washing machine system proceeds in the order of washing, rinsing, and dehydration as shown in FIG. 3 schematically showing the washing process of the washing machine. The explanation is as follows.

First, in the case of washing, the water supply side 2 is driven while water is supplied to the washing tank 8 while the washing water is supplied to the set water level.

At this time, when the water level sensor 1 detects that the washing water reaches the set level, the water supply is stopped and the washing motor 4 is left and right stirred for the set washing time to terminate the washing stroke, and then the rinsing stroke is performed.

That is, during the rinsing administration, the drainage side 3 is driven to drain the wash water, and when the drainage is completed, the washing motor 4 is driven to perform dehydration for a set time and the drainage side 3 is turned off.

After that, the water is supplied again to the set water level, and the washing motor 4 is driven to perform a rinsing operation. The rinsing operation is repeated by the set number of rinsing cycles to complete the rinsing operation.

As in the dehydration operation during the rinsing operation, the drain valve 3 is first driven, and when the drainage is completed, the drainage operation is performed for a set time and the drain valve 3 is turned off to complete all the strokes.

In addition, as described above, the user may select and proceed with each stroke of washing, rinsing, or dehydration without selecting the entire stroke of washing, rinsing, and dehydration. 11) After the display, drive the auto off switch to turn off the washing machine.

However, in the conventional technology as described above, the washing machine may be operated again by selecting only rinsing or rinsing and dehydrating stroke to perform additional rinsing according to the user's rinsing preference after washing.

At this time, even though the laundry is already dehydrated through the dehydration stroke, the laundry enters the rinsing cycle again, and thus wastes unnecessary time and power.

In addition, when only the rinsing stroke is selected for rinsing addition in the system as described above, there may be a variety of laundry conditions in the washing tank.

In other words, if the laundry tank contains only water, if the laundry and water at the same time, hand washing and soapy water containing laundry, complete washing, rinsing, dehydration is completed automatically and the laundry is dehydrated If so, there may be.

However, at present, regardless of the state of the laundry in the washing tank of the washing machine, the rinse stroke operates unconditionally from the drainage stroke, so if the washing tank contains water, the drainage stroke is required, but the washing tank does not always contain water and the user When washing laundry with soapy water in a washing tank for hand washing and rinsing with a washing machine, drainage is unnecessary and the washing machine waits without need.

On the other hand, there are cases where the rinsing stroke is binarized.In this case, if only the rinsing stroke is selected or the rinsing and dehydrating stroke is selected, the first rinsing may be performed by deleting the small strokes of drainage and dehydration and rinsing from water supply. In this case, if the user wants to proceed only the rinsing and dehydration administration with the washing machine after hand washing, the washing water is supplied to the washing tank in a state where the laundry absorbing a large amount of washing water and detergent is discharged to some extent by the initial dehydration and rinsing is performed. It is effective, but water and rinsing are performed at the first rinse stroke, so the actual rinsing effect is lowered, resulting in waste of water and power.

Therefore, the present invention has been made in view of the above, by selecting a single rinsing stroke in the washing machine, by excluding the uniform rinsing stroke and adjusting the detailed rinsing of the rinsing according to the state of the laundry and the progress of the stroke to ensure that the proper rinsing is performed It is an object of the present invention to provide a rinsing control method of the washing machine to achieve an optimal rinsing.

A feature of the present invention for achieving this object is the step of detecting the water level in the washing tank by the water level sensing means, in the washing machine having a water level sensing means, and if the water level detected in the step is above a certain level is not dehydrated And determining the hand washing to drain, dewatering, watering, and rinsing, and if the water level detected in the step is below a predetermined level, determining the additional rinsing to perform water supply and rinsing.

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

First, the present invention is performed in a general washing machine system as shown in FIGS. 1 and 2, and when the rinse alone stroke is selected, the microcomputer 17 uses the water level detector 13 and the quantity detector 15 to wash the washing tank 8. If water is supplied by the user for rinsing the water in the condition of the inside, hand washing and rinsing the washing machine if the water contains wet laundry, washing to complete the washing, rinsing, dehydration and further rinsing The rinsing administration is performed according to the result of the state discrimination of the laundry.

That is, since the state of the laundry is differently determined according to the progress of the stroke, for example, when the washing, rinsing, and dehydration are completed and the rinsing is additionally performed, the laundry is provided in the water level detecting unit 13 and the quantity detecting unit 15. It will be determined that the laundry has completed the entire administration from washing to dehydration. If the user selects rinsing to rinse the laundry after hand washing, the water level in the washing tank 8 is below a certain level and the laundry is not dehydrated. In this case, the microcomputer 17 performs hand washing and discriminates the laundry for adding rinsing. The present invention allows the proper rinsing administration to be performed according to the state of the laundry and the progress of the stroke.

To this end, the quantity detecting unit 15 operates the washing motor 4 with the triac TR1 and TR2 for a predetermined time, and then stops the triac TR1 and TR2, and the washing motor 4 is stopped. The inertia continues to rotate, but if the amount of laundry is large, the laundry presses the rotary plate 5 large, so the washing motor 4 is stopped quickly by inertia, and when the amount of the laundry is small, the laundry is rotated (5). Since the force of pressing) is small, the washing motor 4 is inertia large, and does not stop quickly.

When the washing motor 4 is rotated by inertia, the washing motor 4 is oscillated by the coil inside the washing motor 4 and the condenser C1 which starts the washing motor 4. The oscillation waveform is a photo coupler PC1. ) And the transistors Q1 and Q2 are converted into square waves that the microcomputer 17 can detect.

Therefore, in the case of laundry which has been dehydrated, the laundry presses the rotary plate 5 so that the pulse wave of the oscillation waveform is generated a lot, and if the wet laundry containing soapy water is put into the washing tank by washing the hand, the laundry rotates the rotary plate 5. Since the pressing force is large, the number of pulses of the oscillation waveform becomes small, so that the state of the laundry in the washing tank 8 can be known.

That is, the water level detection unit 13 and the quantity detection unit 15 can distinguish whether there is water in the washing tank 8, whether the laundry is wet, or whether the laundry has been dehydrated, thereby performing an appropriate rinsing stroke. This will be described with reference to the flowchart of FIG.

First, when the rinse alone stroke is selected, it is determined whether the water in the washing tank 8 is above a certain level. If the water is above a certain level, the rotary plate 5 is rotated for a predetermined time to remove dirt from the inner wall of the washing tank 8. Drain, dewater, feed, and rinse.

In addition, when the water level detection unit 3 determines that the water in the washing tank 8 is not above a certain level, the quantity detection unit 5 detects the state of the laundry in the washing tank and dehydrated, watered, Perform a rinse stroke. Here, the laundry detection by hand washing may use a turbidity sensor.

If it is detected that the laundry has been washed, rinsed, and dehydrated, draining and dehydrating strokes are omitted, and only water supply and rinsing strokes are performed.

Meanwhile, another embodiment of the present invention for adjusting the rinse detail stroke according to the progress of the rinsing stroke, that is, the state of the laundry and the key operation of the user, will be described with the flowchart of FIG. 6.

First, when the whole stroke or partial stroke of washing, rinsing, or dehydration is selected and the operation is completed, the microcomputer 17 displays the end of the selection on the display unit 1 to inform the end of the selective stroke. Then wait for a period of time and wait for a keystroke for further administration of the user.

If there is no key input, the microcomputer 17 drives the auto-off switch to cut off the power to the load of the washing machine and the microcomputer circuit and end all operations.

At this time, if the rinsing key is pressed a predetermined time after the end of the display, the microcomputer 17 sets the rinsing priority flag only when the washing stroke is not selected and the rinsing stroke is selected, and determines that the rinsing addition is to enter the rinsing progress routine.

At this time, the microcomputer 17 determines whether the initial stroke is rinsing. This is to determine whether the rinsing is performed for the first time after the power is turned on, and since washing, rinsing, or dehydration is already performed, it is determined whether the rinsing priority flag is set.

At this time, since the rinsing priority flag is set, the small strokes of drainage and dehydration are skipped and the water supply and rinsing are performed.

And if the rinse priority flag is not set, draining, dehydrating, watering, rinsing

Perform a full stroke

In addition, when the user proceeds to rinse dehydration by washing the laundry by hand, the user turns on the washing machine, selects the rinsing and dehydrating stroke, and operates the washing machine. Since it is determined that the traveling stroke is a rinse, it is determined whether the washing water in the washing tank is above a certain level.

In this case, the laundry is soaked in water, but not in a state in which a lot of water is in the washing tank. In this case, the drainage and dehydration process is performed to ensure efficient rinsing.

In addition, when the user supplies water to the washing tank in advance to rinse and selects rinsing dehydration, the initial stroke is rinsing, but if the water level is sensed in the washing tank and the rinsing is over a predetermined level, the water is not drained. By determining whether there is wash water, the supplementary water is supplied if necessary and the rinsing process is performed, so that the user can use it without draining the water previously supplied.

As described above, the present invention eliminates the uniform rinsing stroke when selecting the rinsing alone stroke and performs an appropriate rinsing stroke according to the laundry condition and the administrative progress, thereby avoiding unnecessary operations, saving rinsing time, washing water, and power. This can reduce waste.

In addition, when the washing tank contains water, by rotating the rotating plate for a certain time to remove the foreign matter adhering to the wall of the washing tank to prevent re-contamination of the laundry due to the washing tank contamination when rinsing.

Claims (7)

In the washing machine having a water level sensing means, detecting the water level in the washing tank by the water level sensing means; If the level in the washing tank detected in the step is above a certain level, determining that the hand washing is not dewatered to perform drainage, dehydration, water supply, rinsing; If the water level in the washing tank sensed in the step is below a certain water level rinsing control method of the washing machine comprising the step of performing water supply, rinsing by determining the additional rinse selection is complete dehydration. The washing method according to claim 1, wherein when the water level in the washing tank is equal to or higher than a predetermined water level, supplementary water is executed and rinsing is performed. The rinsing control method of a washing machine according to claim 1, wherein when the water level in the washing tank is equal to or higher than a predetermined water level, a washing stroke is performed for a predetermined time before the draining stroke to remove foreign substances from the washing tank wall. A rinsing control method of a washing machine, the method comprising: determining whether a rinsing stroke is selected within a predetermined time until a washing machine is turned off after a series of washing, rinsing, and dehydration is completed; Determining whether the water level in the washing tank is above a predetermined level when the rinsing stroke is selected within the predetermined time in the step; If the water level in the washing tank is above a predetermined level according to the determination result, determining that there is washing water supply by the user, and performing additional water supply and rinsing to an appropriate level; If the water level in the washing tank is below a predetermined level according to the determination result, the step of removing the drainage, dehydration stroke, water supply, and rinsing. According to claim 4, If the rinsing stroke is selected within a predetermined time until the washing machine is turned off after the washing, rinsing, dehydration series of strokes is completed, dehydration is completed, the water supply, rinsing is determined to be additional rinsing due to the user's dissatisfaction Rinsing control method of the washing machine characterized in that it performs. A rinsing control method of a washing machine, the method comprising: determining whether a rinsing stroke is selected after power is applied; Determining whether the water level in the washing tank is above a predetermined level when the rinsing stroke is selected in the step; Performing water drainage, dehydration, water supply, and rinsing when the water level in the washing tank is equal to or greater than a predetermined level according to the determination result; If the water level in the washing tank is less than a predetermined water level according to the determination result, the laundry is not dehydrated is determined to be put into the washing tank and rinsing control method comprising the step of performing dehydration, water supply, rinsing. The washing machine rinsing control according to claim 6, wherein when the water level in the washing tank is lower than a predetermined water level and rinsing is selected in a power-on state, water washing and rinsing are performed by determining that a series of washing strokes are required and additional rinsing is required. Way.