KR100429621B1 - Suppling Water Control Method for Washing Machine - Google Patents

Abstract

The present invention relates to a water supply control method of a washing machine, the first step of setting the drive pattern of the motor during water supply when the water level change command is input by the user's selection during the washing and rinsing stroke, and the first step A second step of the user inputting a water level change command through a key input unit while laundry is supplied to a washing machine in which a motor driving pattern is set during water supply and the motor repeats an on / off operation while washing and rinsing operations are normally performed; When the water level change command of the second step is recognized, the motor is driven according to the motor driving pattern of the water supply set in the first step so that the washing water flow is weakly maintained, and the washing water amount set in the third step of washing water flows in. And further includes a fourth step of stopping water supply and returning to the original motor drive pattern. By changing the water and when the water level during rinsing in a holding state by controlling the on / off pattern of motor weakens the washing water flow to that level there is an effect that can absorb water evenly carriage wash.

Description

Supplying Water Control Method for Washing Machine

The present invention relates to a water supply control method of a washing machine, and more particularly, to a water supply control method of a washing machine which supplies water to a corresponding water level in a state in which washing water flow is weakly maintained by controlling the on / off pattern of the motor when the water level is changed during washing and rinsing strokes. will be.

1 is a block diagram showing a water supply control apparatus of a conventional washing machine, the motor (1) for driving the rotary blade in the washing tank of the washing machine, and key input means for inputting the water level set value through a key press operation of the user from the outside ( 2), a water level sensing means 3 for sensing the water level in the washing tank, and a control unit for controlling the water level according to signals input from the water level sensing means and the key input means 3 and 2 and controlling the driving of the motor. It is comprised including (4).

The control unit 4 detects a signal input from the water level detecting means and the key input means 3 and 2 and controls the water level accordingly, and the motor 1 driving the rotary blades. It comprises a motor control means (4b) for controlling the, and a microcomputer (4c) for detecting the key signal input through the key input means (2) and controls the overall washing and rinsing, dehydration stroke accordingly.

A capacitor 5 connected between the main coil and the auxiliary coil of the motor 1 and an AC power source input from the outside of the motor 1, and connected to an AC power source input from the outside to control the motor according to the control of the motor control means 4b. Triacs 6a, 6b, 6c which energize 1) are included.

When the water supply control method of the conventional washing machine configured as described above with reference to Figure 2 as follows.

In the first step, during the washing and rinsing stroke, it is detected whether the user selects the water level change through the key input means 2 installed on the top cover of the washing machine, and in the second step, the water level change of the first step is changed. When a command is input to the microcomputer 4c, it is determined whether the motor 1 for operating the rotary blades in the washing tank is being driven (see S11 and S12).

If the result of the determination in the second step S12 is affirmative, in the third step, the driving of the motor 1 is stopped for a predetermined time, and in the fourth step, in the washing tank to reach the set water level selected by the user in the first step S11. Washing water is supplied (see S13 and S14).

In the fifth step, it is determined whether the wash water supplied in the fourth step S14 is completed by comparing the set water level selected in the first step S11, and if the determination result of the fifth step is negative, The water supply proceeds to the fourth step S14 until the set water level is reached (see S15).

However, if the determination result of the fifth step (S15) is affirmative, it is determined that the water supply is completed, and in the sixth step, the driving of the motor 1 is started again, and the washing and rinsing stroke are continued if performed before the water level change. See S16)

However, in the conventional water supply control method of the washing machine, when the user's water level change command is input during the washing and rinsing stroke, the water supply is performed after the driving pattern of the motor is terminated, so that the bias of the washing cloth may occur due to the water supply being shifted to one side. In addition, the excessive braking of the motor has a problem that adversely affects the peripheral circuit.

The present invention has been made to solve the above problems of the prior art, the object is to control the on / off pattern of the motor when changing the water level during the washing and rinsing stroke water supply to the water level in the state of keeping the wash water weakly It is to provide a water supply control method of the washing machine can absorb the water evenly wash cloth.

1 is a block diagram showing a water supply control apparatus for a washing machine according to the prior art;

2 is a flowchart illustrating a water supply control method of a washing machine according to the prior art;

3 is a flowchart illustrating a water supply control method of a washing machine according to the present invention.

<Explanation of symbols on main parts of the drawings>

According to a feature of the water supply control method of the washing machine according to the present invention for solving the above problems, when the water level change command is input by the user's selection during the washing and rinsing stroke, the motor on / off time and rotation during water supply The first step of setting the drive pattern of the rotational direction, the rotational speed of the blade, and the motor driving pattern is set during water supply in the first step. Theta-rule is put into the washing machine and the washing and rinsing while the motor repeats the on / off operation A second step in which a user inputs a water level change command through a key input unit while the stroke is normally performed; when the water level change command of the second step is recognized, the motor is turned on according to the motor driving pattern among the water supply set in the first step; At the same time, the wash water flows weakly and the wash water flows in accordance with the change of rotation direction and rotation speed of the rotor blade. It comprises a third step.

An additional feature of the water supply control method of the washing machine according to the present invention is that the washing water flow is kept weak by shortening the on time of the motor.

In addition, in an additional feature of the water supply control method of the washing machine according to the present invention, the water supply control method of the washing machine stops water supply when the amount of washing water supplied in the third step reaches the water level set by the user in the second step. And a fourth step of returning to the motor driving pattern of the washing and rinsing stroke which was in progress of the second step.

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

In general, when a washing machine puts soiled clothing into a washing solution, the detergent separates the fibers from the fibers by the chemical action of the detergent, but the action of the detergent alone takes a long time, so that the speed of time of removal is increased by applying mechanical action such as friction or vibration. Will perform the action.

In the washing operation control of the washing machine, first, by detecting the quantity of clothes or the like put into the washing tank, if the quantity is determined, the water flow, the detergent, and the total washing time are set according to the quantity, and then the pulsator is rotated in reverse with the whole washing time Vortex the water through the laundry to perform the laundry administration to separate the stains on the laundry by friction with the laundry.

Next, when the washing administration is completed, the turbid water is discharged and the fresh water is supplied from the washing tank to perform a rinsing cycle for rinsing for the number of times already set in the system. When the rinsing stroke is completed, the water in the washing tank is discharged and the induction motor is rotated at a high speed at a predetermined speed to remove the laundry water by centrifugal separation to perform dehydration stroke.

In order to maintain an appropriate water level and water flow pattern corresponding to the amount of water in the washing tank at the beginning of the washing cycle in the washing operation control of the washing machine as described above, the water supply is opened until the set water level is reached by opening the water supply valve.

3 is a flowchart illustrating a water supply control method of a washing machine according to the present invention. In the first step, when a user's water level change command is input through a key input unit during a washing and rinsing stroke, an on / off time and rotation of a motor are performed. Set the motor driving pattern during water supply to keep the washing water flow weakly in the direction of rotation and rotation of the blade (see S21).

In the second step, the laundry is put into the washing tank in the washing machine in which the motor driving pattern during the water supply of the first step S21 is set, and when the user selects a standard course or various functions, the quantity in the washing tank is detected, Accordingly, after the water supply proceeds for a smooth washing operation, the washing and rinsing stroke is performed at a predetermined time and number of times according to the user's selection. (See S22)

In the third step, the microcomputer detects whether the user selects the water level change through a key input means installed in the top cover of the washing machine while the washing and rinsing steps of the second step are performed.

In the fourth step, when the key signal for changing the water level is detected in the third step S23, the motor driven in the pattern corresponding to the washing and rinsing stroke of the second step S22 is operated. The washing water flow is kept weak by converting the motor driving pattern of the water supply set in S21) (see S24).

The motor driving pattern during the water supply decreases the rotational speed of the rotary blade as the on time of the motor is reduced, so that the washing water flow is weakly maintained.

In the fifth step, the washing water flows into the washing tank driven by the motor driving pattern during the water supply in the fourth step S24, and the washing water is supplied to the washing water supplied in the fifth step. It is determined whether the set water level is reached and completed by comparing with the set water level selected in the third step S23 (see S25 and S26).

If the determination result of the sixth step (S26) is negative, the flow returns to the fifth step (S25) and the water is supplied again to reach the set water level selected by the user, while the determination result of the sixth step (S26) In affirmative case, in the seventh step, it is determined that the washing water amount has reached the set water level, the water supply is terminated, and the motor driving pattern which has been converted for the water supply is released, and at the same time, the washing and rinsing process in progress in the second step S22 is performed. The motor drive is restored by returning (see S27).

As such, the water supply control method of the washing machine according to the present invention controls the on / off pattern of the motor when the water level is changed during the washing and rinsing stroke, so that the water is uniformly absorbed by the washing cloth by supplying water to the water level in the state where the water flow is weakly maintained. Can be.

The water supply control method of the washing machine of the present invention constituted as described above evenly controls the on / off pattern of the motor to control the on / off pattern of the motor during washing and rinsing stroke so that the water supply proceeds in a state in which the washing water flow is weakly maintained. Not only can be watered, there is an effect that can prevent the laundry cloth is biased to one side.

In addition, the water supply control method of the washing machine of the present invention can maintain the optimal washing conditions because the case of the motor braking is reduced by keeping the driving of the motor weakly when the water level change command is prevented, and the excessive operation of the motor and the system is prevented in advance. It has an effect.

Claims (3)

A first step of setting a driving pattern of a motor on / off time, a rotational direction of a rotary blade, and a rotational speed during water supply when a water level change command is input by a user's selection during a washing and rinsing stroke; In the first step, when the motor driving pattern is set during water supply, the user inputs a water level change command through the key input unit while the washing machine and the rinsing administration are normally performed while the setarul is put into the washing machine and the motor repeats the on / off operation. A second step; When the water level change command of the second step is recognized, the on-time of the motor is shortened according to the motor driving pattern among the water supply set in the first step, and the washing water flow is weakly maintained according to the change of rotation direction and rotation speed of the rotary blade. The water supply control method of the washing machine, characterized in that it comprises a third step of washing water flowing in at the same time. The method of claim 1, The second step is water supply control method of the washing machine, characterized in that the washing water flow is weakly maintained by shortening the on-time of the motor. The method according to claim 1 or 2, The water supply control method of the washing machine stops the water supply when the amount of washing water supplied in the third step reaches the water level set by the user in the second step. And a fourth step of returning.