KR100233452B1 - Washing control method for electric washing machine - Google Patents

Abstract

The present invention relates to a washing control method for an electric washing machine, comprising: a washing / rinsing stroke determining step (S100) for determining whether a washing stroke or a rinsing stroke is performed in the current order; A water supply step (S101-S103) of controlling the water supply valve 61 to supply water to the water tank by the water level set by the user; When the water supply is completed in the water supply step (S101-S103), the washing and rinsing step of gradually generating a washing and rinsing water flow by gradually reducing the operation rate of the washing motor 81 according to the time of washing and rinsing administration ( S104), (S105), (S106); Dehydration step (S107), (S108) for performing a dehydration stroke when the determination result in the washing / rinsing stroke determination step (S100) is not the current washing stroke or rinsing stroke execution order. The present invention by gradually reducing the operation rate of the washing motor 81 at a constant rate in accordance with the progress of the washing and rinsing stroke to generate the washing water, it is possible to improve the tangling and wear performance for the laundry while maintaining the washing performance .

Description

Laundry control method of electric washing machine

The present invention relates to a washing control method of an electric washing machine, and in particular, according to the running time of washing and rinsing stroke, the operation rate of the washing motor is gradually reduced to generate a washing water flow, thereby improving the performance of tangling and wear on laundry. It relates to a laundry control method of an electric washing machine that can be improved.

In general, an electric washing machine forms water flow by stirring and rotating the pulsator to the left / right according to the inversion cycle of the washing motor, and the water flow thus formed impacts the laundry to perform the washing process.

Referring to FIG. 1, a general washing method of an electric washing machine includes a washing stroke S10, a rinsing stroke S20-S60, and a dehydrating stroke S70.

The washing stroke (S10) is a water supply step (S11) for supplying water to the tank by the water level set by the user, washing the pulsator to rotate at a low speed by rotating the pulsator left / right while varying the washing time according to the set water level and the type of laundry It consists of step S12.

When the washing stroke (S10) is finished as described above, the rinsing stroke (S20-S60) is performed, the rinsing stroke is basically performed two to three times depending on the set water level, two to three according to the user's selection A rinsing cycle can additionally be added. Accordingly, the rinsing stroke may be repeated up to five times.

Each of the rinsing cycles (S20-S60) is a drainage step (S21) for draining the washed wash water in the tank, the intermittent dewatering step (S22) for intermittently high-speed rotation of the washing tank while supplying the washing tank, the washing tank at high speed Dehydration step of rotating the water to remove the laundry (S23), the stop step (S24) to stop the washing tank by stopping the current supply to the washing motor, and the water supply step (S25) to feed the water tank to the water level set by the user and , Rotating the pulsator to the left / right to rotate at a low speed consists of a rinsing step (S26) to remove the bubbles or detergent residues contained in the laundry.

The remaining rinse stroke (S30-S60) is configured in the same manner as the rinse stroke (S20).

Dehydration stroke (S70) is performed when the rinsing stroke (S20-S60) as described above, the dehydration stroke (S70) is a drainage step (S71) for completely draining the washing water in the tank, and the washing tank intermittently high-speed rotation It consists of an intermittent dehydration step (S72) and a dehydration step (S73) for removing the water contained in the laundry by centrifugal force by rotating the washing tank at high speed.

When the dehydration operation (S70) as described above is terminated, the washing motor is stopped by cutting off the power supplied to the washing motor in step S80.

In the washing operation according to the general washing method as described above (S10), the washing machine is inverted cycle of the washing motor, that is, in the time period of repeatedly driving the washing motor in the order of forward rotation-> stop-> reverse rotation-> stop Accordingly, the pulsator is rotated to generate water flow, and the washing motor is differently inverted according to the type of washing to generate standard water flow, yulcos water flow and blanket water flow. Here, the ratio obtained by dividing the driving time of the washing motor by the total washing time is called an operation rate.

In addition, in the standard water flow, the inversion period of the washing motor is varied according to the washing water level, that is, high / medium / low and water level.

In addition, the washing machine controls the driving of the washing motor so that the reversing period of the washing motor is changed as in the washing stroke even in the rinsing cycle or the dehydrating stroke.

In this way, data relating to the washing motor inversion cycle, which varies depending on the water flow or the washing water level, is stored in advance in the controller of the washing machine. The controller controls the overall operation of the washing machine, reads the data on the washing motor inversion cycle according to the washing mode selected by the user, and drives the washing motor. Accordingly, the pulsator rotates to generate the water flow corresponding to the washing mode. do.

However, in the general washing method as described above, water flow is generated by maintaining the operation rate at 50% to 55% from the beginning of washing to the end of washing. Therefore, according to the conventional washing method, the washing performance can be greatly improved, but the performance on the entanglement and wear of the laundry cannot be improved because water flow is generated at a constant operating rate throughout the washing time.

In view of the conventional problems as described above, the present invention by gradually reducing the operating rate of the washing motor at a constant rate in accordance with the progress of the washing and rinsing stroke to increase the performance of tangling and wear on the laundry by generating a water flow It provides a laundry control method of an electric washing machine that can be made.

The present invention for achieving the above object comprises a washing / rinsing stroke determination step of determining whether the current washing stroke or rinsing stroke is the order to be performed; A water supply step of controlling the water supply valve and supplying water to the water tank by the water level set by the user; When the water supply is completed in the water supply step, the washing and rinsing step of gradually generating a washing and rinsing water flow by gradually reducing the operation rate of the washing motor according to the time of washing and rinsing administration; And a dehydration step of performing a dehydration stroke when the washing result or the rinsing stroke determination step is not the current washing or rinsing stroke execution order.

1 is a flow chart showing a washing method of a general electric washing machine.

Figure 2 is a block diagram of a washing machine control device to which the present invention is applied.

3 is a flow chart showing a washing control method of the electric washing machine according to the present invention.

Explanation of symbols on the main parts of the drawings

10: control unit 20: function selection unit

30: temperature sensor unit 40: water level detection unit

50: weight detection unit 60: water supply valve drive unit

61: water supply valve 70: drain valve drive unit

71: drain valve 80: washing motor drive unit

81: washing motor 90: display unit

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

Washing machine control apparatus to which the laundry control method according to the present invention is applied, as shown in Figure 2, the control unit 10 for controlling the overall operation of the washing machine, and to select the desired washing function, such as the washing stroke and rinsing stroke and dehydration stroke Function selection unit 20 to set the execution time of the selected function, the temperature sensor unit 30 for detecting the temperature of the water supplied to the water tank, and the water level for outputting a water level detection signal corresponding to the water level of the water tank The sensing unit 40 and a weight sensing unit 50 for sensing the weight of the laundry.

In addition, the washing machine control device is a water supply valve drive unit 60 for opening the water supply valve 61 under the control of the control unit 10, and drainage for opening the drain valve 71 under the control of the control unit 10. The valve driving unit 70, the washing motor driving unit 80 driving the washing motor 81 under the control of the control unit 10, and the present operating state and various information of the washing machine under the control of the control unit 10. And a display unit 90 for displaying.

Washing control method of the electric washing machine according to the present invention performed by the washing machine control device configured as described above, as shown in Figure 3, washing / judging whether the current washing administration or rinsing administration is performed in the entire washing process Water supply step (S101-S103) and the water supply step (S101-S103) and the water supply step (S101-S103) that controls the rinsing administration determination step (S100), the water supply valve 61 to supply water to the water tank by the water level set by the user If the current washing process determines whether the washing administration, and according to the progress of the washing administration gradually reduces the operation rate of the washing motor 81 at a constant rate to include a washing step (S104), (S105) to generate the water flow do.

In addition, in the washing control method of the electric washing machine according to the present invention, when the current washing process is a rinsing stroke as a result of the determination in the washing steps (S104) and (S105), the operation of the washing motor 81 according to the progress time of the rinsing stroke A rinsing step (S106) of generating a rinsing stream by gradually decreasing the rate to a predetermined rate and performing a dehydration stroke when the current washing process is not a washing stroke or a rinsing stroke as a result of the determination in the washing / rinsing stroke determining step (S100). To include the dehydration step (S107), (S108).

The water supply step (S101-S103) is to start the water supply to the water tank by opening the water supply valve 61 (S101), and to recognize the water level of the water tank according to the water level detection signal applied from the water level detection unit 40 Step S102, and the step (S103) of determining whether the water level of the water tank corresponds to the set water level.

The washing control method of the electric washing machine according to the present invention comprising the above steps will be described in more detail with reference to FIG. 3.

In the washing / rinsing stroke determination step (S100), the controller 10 determines whether the washing procedure or the rinsing stroke is currently performed based on the washing mode or the washing / rinsing time set through the function selection unit 20.

When the washing stroke or the rinsing stroke is performed, in step S101 of the water supply step S101-S103, the controller 10 applies a control signal to the water supply valve driver 60 to open the water supply valve 61. The water supply to the tank is thus started. In step S102 of the water supply step (S101-S103), the control unit 10 receives the level detection signal applied from the water level detection unit 40 to recognize the level of the water tank, the step of the water supply step (S101-S103) In S103, it is determined whether the water level of the water tank corresponds to the set water level. As a result of the determination, if the set water level is not reached, the flow returns to the step S101 to continue supplying water, and when the amount of water supplied to the water tank reaches the set water level, the controller 10 applies a control signal to the water supply valve driver 60 to supply the water supply valve. Close 61.

After the water supply step (S101-S103) is completed as described above, in step S104 of the washing step (S104), (S105), the control unit 10 determines whether the current washing administration is the order.

If it is determined that the washing operation is performed, in step S105 of the washing steps S104 and S105, the control unit 10 reads data related to the preset washing water flow pattern and stirs and rotates the washing motor 81. Drive it. At this time, the operation rate of the washing motor 81 is gradually reduced at a constant rate according to the progress of the washing operation.

That is, in the initial stage of the washing operation, the washing motor 81 is driven at an operation rate of 55% to 60% to generate washing water streams which can improve washing performance. In this way, by driving the washing motor 81 at a relatively high operating rate, the detergent dispensed can be activated. In addition, in the middle of the washing operation, the washing motor 81 is driven at an operation rate of 50% to 55% to generate water flow which can improve the washing uniformity performance. At this time, the washing water flows weakly in the horizontal direction than the up / down inversion. Then, at the end of the washing cycle, the washing motor 81 is driven at an operating rate of 45% to 50% to generate a uniform flow of laundry and tangling water flow.

On the other hand, if it is determined in the washing step (S104), (S105) (S104) that the current rinsing stroke is the order to be performed, the rinsing step (S106) is performed. In the rinsing step S106, as in the washing steps S104 and S105 described above, the operation rate of the washing motor 81 is gradually decreased at a constant rate according to the progress of the rinsing stroke to generate a rinsing stream.

In addition, if the determination result in the washing / rinsing stroke determination step (S100) is not the order of the washing stroke or rinsing stroke, in the dehydration step (S107), (S108), the control unit 10 opens the drain valve 71 and washes. The laundry is dewatered by rotating the motor 81 in a constant direction.

As described above, since the water flow is generated by driving the washing motor 81 at a constant operation rate throughout the washing time, performance related to entanglement and wear of laundry cannot be improved.

In view of such a conventional problem, the present invention by gradually reducing the operation rate of the washing motor 81 at a constant rate in accordance with the progress of the washing and rinsing stroke to generate a washing water flow, entanglement for the laundry while maintaining the washing performance And it has an effect which can improve abrasion performance.

Claims (2)

In the washing method of an electric washing machine performing a washing stroke, a rinsing stroke and a dehydration stroke, A washing / rinsing stroke determination step of determining whether the current washing stroke or rinsing stroke is to be performed; A water supply step of controlling the water supply valve and supplying water to the water tank by the water level set by the user; When the water supply is completed in the water supply step, the washing and rinsing step of gradually generating a washing and rinsing water flow by gradually reducing the operation rate of the washing motor according to the time of washing and rinsing administration; And a dehydration step of performing a dehydration stroke when the washing / rinsing stroke determination step is not a current washing stroke or a rinsing stroke execution sequence. The method of claim 1, wherein the washing and rinsing step At the beginning of the washing and rinsing cycle, the washing motor is driven at an operating rate of 55% to 60% to generate water flow which can improve washing performance, and the washing motor is operated at a driving rate of 50% to 55% in the middle of the washing stroke. Drive to generate a stream of water that can improve the uniformity of the washing performance, driving the washing motor at an operating rate of 45% to 50% at the end of the washing administration to generate a uniform flow of laundry and tangling water flow, characterized in that Method for controlling washing of electric washing machine.

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