KR100231038B1 - Washing machine and the driving control method - Google Patents

Abstract

The present invention relates to a washing machine and a driving control method thereof. A water tank is installed in an upper portion of a washing tank to transport the water tank without filling it during transportation, and when washing, storing the washing water in the water tank. By preventing the vibration caused by the high-speed rotation of the washing tank with the weight of the stored wash water, the weight of the washing machine is significantly reduced compared to the conventional washing machine equipped with a balance added to reduce the transportation cost, make transportation easier, and rinse After carrying out the stroke, the final rinsing water is stored in the water tank, and then the final rinsing water is supplied to a washing tank at a subsequent washing administration to wash the laundry, thereby reducing the consumption of the washing water.

Description

Washing machine and driving control method

The present invention relates to a washing machine, and more particularly, to a washing machine having a water tank for preventing vibration of the washing tank by using the weight of water and maintaining a balance, and a control method thereof.

In general, a conventional washing machine, as shown in Figure 1, is provided with a detergent container (3) in the upper front of the washing machine main body 1, the rear of the main body is connected to the water supply means not shown to provide hot and cold water Hot and cold water supply valves 7 and 8 are provided to supply.

A tub 9 is installed in the main body 1, and a drum 11 is installed to perform washing and dehydration by rotating at high speed simultaneously with the application of power from the power supply means, not shown. 9 is attached to the front surface of the drum (11) so as to bind the door (13) that opens and closes when the laundry is put in and out of the drum (11).

In addition, the lower side of the tub (9) is provided with a power generating means 27 for forward and reverse rotation of the drum (11), the drain pump connected to the drain hose not shown in the lower rear of the washing machine body (1) (29) is installed, the filter 31 for preventing the drainage pump 29 is blocked by the washing residue of the residue and dirt flowing out from the tub (9) in the front lower portion of the main body (1). It is.

The drum 11 has a plurality of through-holes 11a formed on the entire surface thereof to allow laundry to be agitated therein and to allow the wash water in the tub 9 to flow therein. The inside of the (11) by pulling up and dropping the laundry, the water flow control means (11b) arranged at regular intervals by 120 ^o each other so as to produce the same washing effect as tapping with a laundry batter is bound by the fastening means not shown It is.

And, as can be seen with reference to Figure 2, the upper portion of the tub (9) is provided with a counterweight (40) to prevent vibration generated during the high-speed rotation of the drum 11 during washing, rinsing and dehydration.

However, in the conventional washing machine as described above, since the counterweight 40 is made of cast iron or cement having a relatively high weight, the overall weight of the washing machine is increased, which is inconvenient for transportation and the transportation cost is increased.

Therefore, the present invention has been made to solve the problems as described above, the present invention by installing a water tank in the upper portion of the washing tank, when washing the water filled in the water tank to vibrate according to the high-speed rotation of the washing tank It is an object of the present invention to provide a washing machine and a driving control method thereof, which can be conveniently transported and reduce transportation costs by preventing and transporting the water tank without filling it with water during transportation. .

Meanwhile, the present invention stores the final rinsing water after the rinsing cycle is performed in the water tank again, and performs the washing process using the final rinsing water stored in the water tank at the time of re-washing, thereby consuming the washing water. Another object of the present invention is to provide a washing machine and a driving control method thereof, which can reduce the amount.

Washing machine according to the present invention for achieving the above object is a control unit for outputting a variety of control signals for washing the laundry according to the washing course selected by the user to operate the selection key of the key input unit, and is applied from the control unit The washing unit is configured to generate power in accordance with a control signal to stir and rotate the washing tank, and stores the washing water supplied from the outside or the washing water drained from the washing tank according to a control signal applied from the control unit, and stores the stored washing water. While maintaining the balance to prevent vibration during high-speed rotation of the washing tank by using the weight of the balance maintaining / water supply unit to supply the stored washing water to the washing tank, and applied to the controller Drain the wash water in the washing tank to the outside or balance the control signal If / it is characterized in that the water supply unit composed of multiple parts which are to be fed back to.

In the drive control method of the washing machine according to the present invention for achieving the above object, in the drive control method of the washing machine for washing the laundry by controlling the washing machine in which the water tank is installed on the upper portion of the washing tank, the user selects a key input unit A washing course selection step of selecting a washing course, and supplying the washing water stored in the water tank to the washing tank according to the selected washing course, and then supplying the washing water supplied from the outside to the water tank. A water supply step of maintaining the water level of the water tank at a predetermined level, a washing step of washing and rinsing and dehydrating the washing tank by stirring and rotating the washing tank according to the selected washing course, and rinsing in the washing step. Rinse water for supplying the final rinsing water remaining in the washing tank to the water tank again after performing the stroke Characterized in that the storage step.

1 is a schematic front structural perspective view of a conventional washing machine.

2 is a schematic rear structural view of the washing machine shown in FIG.

3 is a schematic block diagram of a washing machine according to a preferred embodiment of the present invention.

4 is a schematic structural diagram of a washing machine shown in FIG.

FIG. 5 is a schematic structural perspective view of the washing machine shown in FIGS. 3 and 4. FIG.

FIG. 6 is a flowchart for describing an operation process of the washing machine shown in FIGS. 3 to 5.

7 is a flowchart for explaining a detailed operation process of the water supply step shown in FIG.

8 is a flowchart for explaining a detailed operation of the final rinsing water storage step shown in FIG.

* Explanation of symbols for main parts of the drawings

100: key input unit 200: control unit

300: balance maintenance / water supply 310: first water supply valve

320: water tank water level sensor 330: second water supply valve

340: water tank 400: laundry

410: power generating unit 420: washing tank water level sensor

430: washing tank 500: drain

510: drain pump 520: drain valve

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

Figure 3 is a schematic block diagram of a washing machine according to a preferred embodiment of the present invention, as can be seen with reference to the same diagram, the washing machine of the present invention, the key input unit 100, the control unit 200, balance maintenance / water supply It consists of a part 400, the washing | cleaning part 400, and the drain part 500.

In FIG. 3, the key input unit 100 includes a plurality of selection keys for inputting a washing course, converts a key operation by a user into a corresponding key signal, and applies it to the control unit 200. 200 generates various control signals for washing according to the washing course input through the key input unit 100.

And, the balance maintaining / water supply unit 300, as can be seen with reference to Figures 3 and 4, the first water supply valve 310, the water tank level sensor 320, the second water supply valve 330 and the water tank 340, the first water supply valve 310 supplies the washing water supplied to the water tank 300 according to a control signal applied from the controller 200 to the water tank 300, and the water tank water level sensor 320. ) Detects the water level inside the water tank 340 and applies a water level signal corresponding thereto to the controller 200.

In addition, in the balance maintenance / water supply unit 300, the second water supply valve 320 supplies the washing water in the water tank 340 to the washing tank 430 according to a control signal applied from the control unit 200. And, as can be seen with reference to Figure 5, the water tank 300, it is attached to the upper portion of the washing tank 430.

3 to 5, the washing unit 400 includes a power generating unit 410, a washing tank water level sensor 420, and a washing tank 430, wherein the power generating unit 410 is a control unit. Generates power in accordance with the control signal applied from the 200, stirring and rotating the washing tank 430, washing tank water level sensor 420 detects the washing water level in the washing tank 430, the corresponding water level signal Is applied to the control unit 200, the washing tank 430 is rotated and stirred by the power generated by the power generating unit 410, and performs the stroke, such as washing or rinsing or dehydration for the laundry therein.

In addition, as shown in Figures 4 and 5, the drain 500 is composed of a drain pump 510 and a drain valve 520, the drain pump 510 is a control signal applied from the control unit 200 According to the pumping operation to press the washing water in the washing tank 430, the drain valve 520 is a washing tank pressurized by the pumping operation of the drain pump 510 according to a control signal applied from the control unit 200 ( The wash water in 430 is drained to an external sewage pipe, or is supplied again to the water tank 340 of the balance maintaining / water supply unit 300.

An operation process of the present invention made as described above will be described in more detail with reference to FIGS. 3 to 8.

First, in the state where the wash water is stored in the water tank 340 of the balance maintaining / water supply unit 300, the user inputs laundry into the washing tank 430 of the washing unit 400, and then the key input unit 100. When the desired washing course (for example, standard course, soaking course, rinsing, dehydration, water supply amount, rinsing frequency, etc.) is input (S100), a corresponding key signal is input from the key input unit 100 to the control unit 200. Is applied, the control unit 200 according to the washing course input through the key input unit 100 corresponding to the washing environment (for example, washing time (WT), water flow, the rotational speed of the washing tank 430, The rinsing method, the rinsing frequency, the dehydration time, and the rotation speed of the washing tank 430 at the time of dehydration are set (S200).

At this time, when the user manipulates the start key provided in the key input unit 100 (S300), the corresponding key signal is applied from the key input unit 100 to the control unit 200, and the control unit 200 receives the water tank ( The washing water is supplied to the washing tank 430 through 340 (S400), and a detailed operation process of the water supply operation at this time is as shown in FIG.

In FIG. 7, the control unit 200 supplies a second water supply control signal for supplying the wash water stored in the water tank 340 of the balance maintaining / water supply unit 300 to the washing tank 430 of the washing unit 400. The washing water stored in the water tank 300 is applied to the water supply valve 330 (S401) and the second water supply valve 330 is supplied from the control unit 200 to the inside of the washing tank 400. Water it.

At this time, the washing tank water level sensor 420 detects the water level of the washing water in the washing tank 430 and applies the water level signal corresponding thereto to the controller 200, and the controller 200 enters the washing tank 430 through the water level signal. The water level of the wash water supplied is sensed (S402), and the detected water level inside the washing tank 430 is compared with the set water level corresponding to the water supply amount of the washing course selected by the user (S403).

As a result of the comparison in the step S403, if the water level of the washing tank 430 is less than the set water level, since the washing water corresponding to the water supply amount of the washing course is not supplied to the washing tank 430, the flow proceeds to the step S401. By repeating the steps S401 to S403 thereafter, the washing tank 430 is supplied with the washing water having a water supply amount corresponding to the washing course.

If, as a result of the comparison in the step (S403), if the water level of the washing tank 430 is greater than the set water level, since the amount of washing water corresponding to the water supply amount of the washing course is supplied to the washing tank 430, the control unit 200 The water supply stop signal for stopping the water supply of the wash water to the washing tank 430 is applied to the second water supply valve 330 (S404), and the second water supply valve 330 is applied from the controller 200. The water supply of the washing water to the washing tank 430 is stopped according to the control signal.

Then, the control unit 200 applies a water supply control signal for supplying the wash water supplied from the external water supply to the water tank 340 to the first water supply valve 310 (S405), the first water supply valve 310 The water is supplied to the water tank 340 to wash water supplied from the external water supply in accordance with the water supply control signal applied from the control unit 200.

At this time, the water tank level sensor 320 detects the water level inside the water tank 340, and applies a water level signal corresponding thereto to the controller 200, and the controller 200 receives the water tank 340 through the water level signal. Detects the level of the wash water supplied to the inside (S406), and the level of the water level inside the detected water tank 340 is suitable for suppressing the vibration during the high-speed rotation of the washing tank 430 (for example, high water level When it is set to 100%, it is compared to (90 ~ 100%) or more (S407).

As a result of the comparison in the step S407, if the water level in the water tank 340 is less than the set water level, the flow advances to the step S405, and the subsequent steps S405 to S407 are repeated to thereby carry out the water tank. The washing water is supplied to 340 at the set water level.

If, as a result of the comparison in the step (S407), if the water level of the water tank 340 is higher than the set water level, the control unit 200 stops the water supply control signal for stopping the water supply of the wash water to the water tank 340 Is applied to the first water supply valve 310 (S408), the first water supply valve 310 stops the water supply of the wash water to the water tank 340 according to the water supply stop control signal applied from the control unit 200 do.

Next, the control unit 200 applies a driving control signal to the power generating unit 410 for stirring or rotating the washing tank 430 from side to side in accordance with the washing environment set in the step (S200) (S500a), The power generating unit 410 generates power in accordance with the driving control signal applied from the control unit 200 to agitate the washing tank 430, thereby performing the washing administration for the laundry inside the washing tank 430.

Here, the washing tank 430 is prevented from vibration even at high speed by the load of the wash water stored in the water tank 340, it is possible to maintain the balance.

In addition, when the washing operation is terminated according to the washing environment set in the step S200, the control unit 200 sends a drain control signal for draining the washing water in the washing tank 430 to the outside. Each of the 510 and the drain valve 520 is applied (S500b), and the drain pump 510 pressurizes the washing water in the washing tank 430 by performing a pumping operation according to the drainage control signal applied from the controller 200. The drain valve 520 drains the washing water in the washing tank 430 pressurized by the pumping operation of the drain pump 510 according to the drain control signal applied from the controller 200 to an external sewer pipe.

Then, the control unit 200 performs the same control operation as the step (S400), watering the washing water in the washing tank 430 (S600), according to the washing environment set in the step 200, washing tank ( A driving control signal for causing the stirring operation or rotation lowering to the left and right 430 is applied to the power generating unit 410 (S700), and the power generating unit 410 applies the power according to the driving control signal applied from the control unit 200. By generating and stirring the washing tank 430, the rinsing stroke for the laundry in the washing tank 430 is performed.

Here, the washing tank 430 is prevented from vibration even at high speed by the load of the wash water stored in the water tank 340, it is possible to maintain the balance.

Then, according to the washing environment set in the step 200, after performing the rinsing stroke, the final rinsing water in the washing tank 430 is stored in the water tank 340, the detailed operation process of this is shown in FIG. As shown.

In FIG. 8, after the control unit 200 performs the step S700 of performing a rinsing stroke, the drain pump 510 and a control signal for supplying the final rinsing water in the washing tank 430 to the water tank. Applied to each of the drain valve 520 (S801), the drain pump 510 performs a pumping operation in accordance with the control signal applied from the control unit 200 to pressurize the final rinsing water in the washing tank 430, drain valve 520 supplies the final rinsing water in the washing tank 430 pressurized by the pumping operation of the drain pump 510 according to a control signal applied from the controller 200 to the water tank 340.

At this time, the washing tank water level sensor 420 detects the water level of the washing water in the washing tank 430 and applies a level signal corresponding thereto to the control unit 200, and the control unit 200 receives the washing tank 430 through the water level signal. Detect the water level of the wash water supplied to the inside (S802), and compares whether the water level inside the detected washing tank 430 is lower than the lower limit level (for example, about 0% when the full water level is 100%) ( S803).

As a result of the comparison in the step S803, if the water level of the washing tank 430 exceeds the lower limit level, since the final rinsing water remains inside the washing tank 430, the process proceeds to the step S801 thereafter. By repeating steps S801 to S803, the supply of the final rinsing water to the water tank 340 is continued.

If, as a result of the comparison in the step (S803), if the water level of the washing tank 430 is lower than the lower limit level because the final rinsing water is not left in the washing tank 430, the final rinsing water for the water tank 340 A control signal for stopping supply is applied to the drain pump 510 and the drain valve 520, respectively (S804), and the water tank 340 to which the drain pump 510 and the drain valve 520 are applied from the control unit 200. Stop supply of final rinse water for

At this time, the water tank level sensor 320 detects the water level inside the water tank 340, and applies a water level signal corresponding thereto to the controller 200, and the controller 200 receives the water tank 340 through the water level signal. The water level of the washing water supplied to the inside (S805), the level of the water level inside the detected water tank 340 is suitable for suppressing the vibration during the high-speed rotation of the washing tank 430 (for example, high water level When it is set to 100%, it is compared whether or not more than (90 ~ 100%) (S806).

When the water level in the water tank 340 is less than the set water level as a result of the comparison in step S806, the water supply control for supplying the water tank 340 to the water tank 340 by the controller 200 when the water level is lower than the set water level. A signal is applied to the first water supply valve 310 (S807), and the first water supply valve 310 receives the wash water supplied from the external water supply in accordance with the water supply control signal applied from the controller 200. Water 340).

Then, the control unit 200 proceeds to the step 805, and repeats the subsequent steps (S805 ~ S807), the water tank 340 to supply the wash water up to the set water level.

If the water level of the water tank 340 is greater than or equal to the set water level as a result of the comparison in the step S806, the water supply stop control signal for the controller 200 to stop the water supply of the wash water to the water tank 340. Is applied to the first water supply valve 310 (S808), the first water supply valve 310 stops the water supply of the wash water to the water tank 340 according to the water supply stop control signal applied from the control unit 200 do.

Subsequently, the control unit 200 applies a driving control signal for rotating the washing tank 430 at high speed to the power generating unit 410, and at the same time, wash water dewatered from the laundry inside the washing tank 430 when dewatering. A drainage control signal for draining the drain to an external sewer pipe is applied to the drainage pump 510 and the drainage valve 520 (S900a).

As a result, the power generating unit 410 generates power in accordance with the driving control signal applied from the control unit 200 to rotate the washing tank 430 at high speed, thereby dehydrating the laundry inside the washing tank 430, and draining the water. The pump 510 performs a pumping operation to press the washing water dewatered from the laundry inside the washing tub 430 at the time of dehydration according to the drainage control signal applied from the controller 200, and the drain valve 520 drains the drainage valve. The washing water pressurized by the pumping operation of the pump 510 is drained to an external sewage pipe.

Here, the washing tank 430 is prevented from vibration even at high speed by the load of the final rinsing water stored in the water tank 340, it is possible to maintain the balance.

Thereafter, when the dehydration time according to the washing environment set by the control unit 200 in step S200 elapses, the control unit 200 generates a drive control signal for stopping the rotation operation of the washing tank 430. At the same time, the drainage stop control signal is applied to the drain pump 510 and the drain valve 520 (S900b).

As a result, the power generating unit 410 stops the generation of power in accordance with the drive control signal applied from the control unit 200 to stop the rotation of the washing tank 430, the drain pump 510 and the drain valve 520 The drainage operation for the wash water is stopped according to the drainage stop control signal applied from the controller 200.

Then, when washing the laundry afterwards, the final rinsing water stored in the water tank 300 is supplied to the washing tank 430 to perform the washing administration.

As described above, in the present invention, the water tank 340 is installed in the washing tank 430, and the water tank 340 is transported without filling the water tank during transportation, and the water tank 340 is washed at the time of washing. By storing the wash water to prevent the vibration by the high-speed rotation of the washing tank 430 by the weight of the stored wash water, compared to the conventional washing machine is equipped with a balance added, the overall weight of the washing machine is significantly reduced to reduce the transportation cost, While making transportation easier, by storing the final rinsing water in the water tank after performing a rinsing stroke, the final rinsing water is supplied to the washing tank 430 in the subsequent washing stroke to wash the laundry, It is to reduce the consumption of washing water.

As described above, according to the present invention, the water tank is installed on the upper part of the washing tank, and when washing, the washing water is stored in the water tank to maintain the balance of the washing tank by the weight of the stored washing water, and By reducing the overall weight of the washing machine by draining the water in the water tank to the outside, the transportation cost is reduced, the transportation is convenient, and the final rinsing water is stored in the water tank during the rinsing stroke, and then In order to wash the laundry by supplying the final rinsing water stored in the water tank in the washing tank, there is an effect that can reduce the consumption of the washing water.

Claims (6)

A control unit configured to output various control signals for washing laundry according to a selected washing course by a user operating a selection key of a key input unit, and generating power according to a control signal applied from the control unit to stir and rotate the washing tank The washing unit is configured to operate, the washing water supplied from the outside according to the control signal applied from the control unit or the washing water drained from the washing tank, and using the weight of the stored washing water to vibrate at high speed rotation of the washing tank And maintaining the balance, while maintaining the balance and supplying the stored washing water to the washing tank, and draining the washing water in the washing tank to the outside according to a control signal applied from the controller. Or to a drain arranged to feed back to the balance / supply section. Washing machine according to claim eojin. The water supply system of claim 1, wherein the balance maintaining / water supply unit is configured to apply the water tank disposed above the washing tank and the wash water supplied from an external water supply to the water tank according to a control signal applied from the control unit. Washing machine comprising a first water supply valve, and a second water supply valve for supplying the wash water stored in the water tank to the washing tank in accordance with a control signal applied from the controller. The water tank level sensor of claim 2, further comprising a water tank level sensor configured to sense a level in the water tank and apply a level signal corresponding to the level in the balance maintaining / water supply section. The water level of the water tank is sensed through a signal, and the balance / water supply part or the drainage part is controlled so that the washing water supplied from the outside or the final rinsing water drained from the washing tank is returned to the predetermined water level of the water tank. Washing machine characterized in that the supply. The drainage pump according to claim 1 or 2, wherein the drainage unit is configured to pressurize the washing water in the washing tank by performing a pumping operation according to a control signal applied from the control unit, and a control signal applied from the control unit. According to the washing machine, characterized in that for draining the wash water pressurized by the drain pump to the outside, or a drain valve for supplying again to the water tank. A driving control method for a washing machine for washing laundry by controlling a washing machine having a water tank attached to an upper portion of a washing tank, the washing course selection step of selecting a washing course by a user operating a selection key of a key input unit; A water supply step of supplying the washing water stored in the water tank to the washing tank according to a washing course, and then supplying the washing water supplied from the outside to the water tank to maintain the water level of the water tank at a predetermined level; Stirring and rotating the washing tank according to the selected washing course to perform a washing stroke, a rinsing stroke, a dehydrating stroke, and the like, and a final rinsing water remaining in the washing tank after the rinsing stroke is performed in the washing step. Driving control method of the washing machine, characterized in that consisting of a rinsing water storage step for supplying again to the water tank. The method of claim 5, wherein after the supply of the final rinsing water to the water tank in the rinsing water storage step, the water level of the water tank is sensed, if the detected water level is less than the predetermined level, supply from the outside And a step of supplying the washing water to the predetermined water level.

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