KR100412046B1 - How to control water rinsing - Google Patents

Abstract

It is an object of the present invention to partially wash only the rinsing water in the lower part of the lower part of the washing tank which contains a large amount of contaminants when the rinsing water is drained in the rinsing mode of the washing machine, and then perform the rinsing of the next round after replenishing the amount of the drained water. It is to provide a water saving rinsing control method to reduce the water consumption.

The present invention for achieving the above object is the first step of determining the rinsing mode of the washing machine, the second step of determining the rinsing completion by performing a rinse after watering up to the set water level in the rinsing mode, the number of rinsing when the rinsing is completed After counting up, the third step of determining whether the rinsing frequency has reached the set number of times, and if the rinsing frequency is less than the set number of times, drain the water to the low level only, and then supply water from the low level to the set level to perform rinsing again, and the rinse frequency is set. If it is reached to include a fourth step of completing a series of washing by performing dehydration after complete drainage.

Such the present invention can reduce the amount of rinsing water used in the rinsing step of the washing operation significantly, bringing the effect of reducing the washing cost.

Description

How to control water rinsing

The present invention relates to a rinsing control technology of a full-automatic washing machine, and in particular, when rinsing water is discharged after rinsing, only partially rinsing water in the lower part of the washing tank containing a large amount of contaminants and then replenishing the amount of water drained The present invention relates to a water-saving rinsing control method capable of reducing the amount of washing water used by performing the rinsing cycle.

After the laundry is put into the washing machine and the washing operation conditions are determined by using the function selection buttons of the operation selection unit provided on the front panel of the washing machine, and the start button is pressed, the washing control microcomputer detects the sensing value of the load sensor sensing the weight of the laundry in the washing tank. We accept and decide quantity of washing water supply.

This water supply finds the water level in the memory table and completes the water supply to the water level before washing.

When the washing administration is completed, the series of washing operations is completed by draining, rinsing, and dehydrating.

However, the rinsing step in the washing process is usually repeated two or three times, so that every rinsing cycle is rinsed after watering up to the water level determined in the previous washing administration requires a lot of washing water.

An object of the present invention is to partially drain only the rinsing water in the lower part of the washing tank containing a large amount of contaminants when the rinsing water is discharged from the rinsing stroke during the washing operation of the laundry using the washing machine, and then partially replenishes the amount of the drained water, The present invention provides a water saving rinsing control method to reduce washing water consumption by performing rinsing.

1 is an explanatory diagram of contaminant distribution characteristics of rinsing water in a washing tank after rinsing is completed.

2 is a block diagram of a washing machine control circuit for implementing the present invention.

3 is a flowchart illustrating a control process of the present invention.

※ Explanation of symbols about main part of drawing ※

10: microcomputer 11: water level sensor

12: operation selector 13: load sensor

15: water supply valve drive unit 17: water supply valve

18: drain valve drive unit 19: drain valve

20: motor drive unit 21: motor

22: gear mechanism 23: washing tank

24: Pulsator 25: Memory

26: timer 27: pollutant

28: reservoir

The present invention for achieving the above object is a step of determining whether the operation of the washing machine has reached the rinsing mode performing step, and if the operation of the washing machine is the rinsing performance mode as a result of performing the step after opening the water supply valve to supply water to the set water level Performing rinsing and determining whether the rinsing cycle is complete; counting up rinsing frequency when rinsing completion is determined; determining whether the rinsing frequency has reached the set number of times; and if the rinsing frequency is less than the set frequency, up to the low level. After draining, the water is additionally supplied from the low water level to the set water level to perform rinsing, and if the number of rinsing cycles reaches the set number of times, complete draining is performed to complete the series of washing operations.

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

1 is an explanatory diagram of contaminant distribution characteristics of rinsing water in a washing tank after rinsing is completed. Here, the drive output of the motor 21 is mounted so as to be transmitted to the gear mechanism 22 through the belt, and by the gear mechanism 22, the pulsator 24 and the washing tank 23 are selectively mounted to rotate. Is showing.

After the washing operation is completed in the washing machine to perform the laundry rinsing stroke, many contaminants 27 remain in the rinsing water in the reservoir 28, indicating that most of the contaminants 28 are located in the lower layer of the rinsing water. have.

2 is a circuit block diagram of a fully automatic washing machine control system for carrying out the present invention.

As referred to herein, the microcomputer 10 that controls the entire washing machine includes key input data of the operation selection unit 12 for inputting the function selection and setting conditions of the washing control program, and the water level for each quantity of water supplied to the washing tank. The sensing data of the water level sensor 11 for sensing the load and the sensing data of the load sensor 13 for sensing the weight of the laundry are connected to determine the washing amount as the weight value.

The microcomputer 10 has a memory 25 that stores information related to system programs, reservations, and the like, and a timer 26 for present time information and timing counts.

The water supply control signal output from the microcomputer 10 causes the water supply valve 17 to operate through the water supply valve driver 15 so that water is supplied to the water storage tank 28 and is generated after washing or rinsing. By the drain control signal from the microcomputer 10, the drain valve 19 is operated through the drain valve driver 18 to configure the wash water stored in the reservoir 28 to be discharged.

In addition, the motor control signal output from the microcomputer is connected to be applied to the motor 21 through the motor driving unit 20, the power generated by the motor 21 is the washing tank 23 and the pulsing through the gear mechanism 22 It is configured to be connected to the data 24 to be applied.

The water-saving rinsing control process of the present invention will be described in detail based on the washing machine control circuit configured as described above.

When the washing machine user puts laundry into the washing tank and selects the washing mode and the dehydration time using the operation selector 12 and then presses the start button, the weight of the laundry is detected by the load sensor 13 and provided to the microcomputer 10. do.

Accordingly, the microcomputer determines the water level sensor for detecting the water supply amount corresponding to the laundry weight value detected and input from the table on the data memory 25 to detect when the water supply to the corresponding amount is completed.

When the water level sensor is determined as described above, the microcomputer 10 controls the water supply valve driver 15 to open the water supply valve 17 to supply water to the water storage tank 28.

When the water supply continues and the determination level detection signal is generated by the water level sensor 11, the microcomputer 10 supplies a driving current to the motor 21 through the motor driving unit 20 to be coupled to the motor 21. The washing operation is performed by driving the pulsator 24 forward and reverse rotation by the gear mechanism 22.

When the washing is completed as the washing operation according to the rotation operation of the pulsator 24 proceeds for the strength and time set by the washing program input of the operation selecting unit 12, the microcomputer 10 opens the drain valve driving unit 18. The drain valve 19 is operated to drain the wash water stored in the reservoir.

After completion of drainage, the microcomputer 10 performs a rinsing mode for rinsing the detergent and contaminants remaining in the laundry.

In order to perform the rinsing step, the microcomputer 10 opens the water supply valve 17 through the water supply valve driver 15 to supply water to the water level determined before the water tank.

When the water supply of the first rinsing water is completed with the set water level value, the microcomputer 10 drives the motor 21 through the motor driving unit 20. The pulsator is connected to the motor 21 through the gear mechanism 22 coupled to the motor 21. Drive 24 forward and reverse rotation to perform the first rinse of the laundry.

When the completion of the first rinsing operation time is determined as the rinsing time elapsed data by the timer 26 is input to the microcomputer 10 and the set rinsing time, the microcomputer 10 determines that the rinsing water contaminated for the second rinsing. Do a multiple of.

In the draining operation for the first rinsing water, the microcomputer 10 uses the less polluted rinsing water in the upper part of the reservoir in the second rinsing. The draining operation of the first rinsing water is performed by the low water level sensing signal from the water level sensor 11. When it comes in, stop draining. According to this draining operation, since the rinsing water in the lower part containing most of the contaminants is selectively discharged first by the hydraulic pressure in the upper part, the first rinsing water in a relatively less contaminated state remains at a low water level.

The secondary rinsing water is stored in the reservoir as water is supplied to the initial set level in addition to the primary rinsing water remaining at the low level.

The second rinse water is less clean than the first rinse water in which the rinsing water is newly stored in the water tank from the beginning, but it does not have a great effect when rinsing laundry with less pollution. You will be able to complete a series of laundry operations.

This type of rinsing control is repeated up to the maximum allowable rinsing frequency limited by the third rinsing or washing control program.

3 is a flowchart illustrating an operation process of the present invention performed in the microcomputer of the washing machine control circuit.

As referred to herein, in the first step for the rinsing operation control according to the invention it is determined whether the operation of the washing machine is in the rinsing mode.

In the second step, if it is determined that the washing operation process of the automatic washing machine is in the rinsing mode, the microcomputer outputs a control signal to the water supply valve driving unit to open the water supply valve to supply water to the reservoir. At this time, the water supply completion from the water level sensing signal from the water level sensor to the predetermined water level determined in the washing stroke is determined.

In the third step, the first rinsing is performed when the water supply completion up to the set water level is determined. According to the timing count of the timer, when the first rinsing execution time set on the washing control program is completed, the number of rinsing counts is counted up and the counted rinsing count information is stored in the memory. It is determined whether or not to reach.

In the fourth step, if the number of rinses in the third step has not yet reached the set number of times, the microcomputer discharges all the rinsing water from the reservoir in draining the contaminated rinsing water by opening the drain valve through the drain valve driving unit. Instead, the drainage is limited only to the low level detected by the level sensor.

After the drainage of the rinsing water is completed to the low water level by this drainage operation, it is immediately re-supplied to determine whether the second rinsing water has reached the set level, and when the second rinsing water reaches the set water level, the second rinsing is completed. Return to step 3 again to determine the set rinsing frequency.

If the rinsing frequency reaches the set number or the maximum limit rinsing rate, the microcomputer operates the drain valve to drain the rinsing water from the reservoir after the rinsing is completed. After the drainage operation of the drainage step is completed, a series of washing operations are ended by performing a dehydration stroke to dewater the laundry.

As described above, the present invention selectively drains only part of the rinsing water in the lower layer where most of the laundry contaminants remain in the rinsing water used in the first rinsing during the washing operation, and additionally supplies the water to the second rinsing in addition to the remaining first rinsing water. By rinsing the laundry up to the set number of rinses or the maximum allowable number of rinses in a manner of making water, the washing cost can be reduced by minimizing the amount of washing water used.

Claims (1)

A method of controlling a rinsing administration during a washing operation of a full automatic washing machine, the method comprising: a first step of determining a rinsing mode of a washing machine; and a second step of determining rinsing completion by supplying water to a set water level when the washing machine is a rinsing mode; After the rinsing is completed, the third step of counting up the number of rinses and then determining whether the number of rinses has reached the set number of times; Re-rinsing by additional water supply from the low water level to the set water level, and if the number of rinses reaches the set number of times, the water saving rinsing control method comprising a fourth step of completing a series of washing by dehydration after complete drainage.