KR100249688B1 - A washing machine - Google Patents

Abstract

The present invention relates to a washing operation control device and a control method of the automatic washing machine, the washing motor rotational speed for detecting that the set rotation speed of the washing motor is reduced by overloading the washing motor when the amount of washing cloth is twisted during the washing operation A sensing means and a washing motor rotational speed reduction means for reducing the rotational speed of the washing motor to reduce the strength of the washing water so that the washing cloth is released when the washing motor rotational speed detecting means detects that the washing motor rotational speed is decelerated; When the washing cloth is released by the washing motor rotation speed deceleration means, the washing cloth is rotated as the washing water rotates as the washing water rotates as the washing motor rotates the washing speed of the washing motor to the set rotation speed in order to reduce the strength of the washing water. Washing cap that occurs when tangled and concentrated By detecting the deceleration of the rotational speed to reduce the rotation speed of the washing motor weaken the strength of the washing water flow. As the laundry flows weaker, the laundry cloth is loosened, so that the laundry cloth is evenly distributed in the washing tank and the dehydration tank. There is a very excellent effect that the washing efficiency is increased by the stretching action and the bibim action by proceeding the washing in a state in which the laundry cloth evenly distributed. In addition, there is a very excellent effect that can reduce the power consumption by reducing the rotational speed of the washing motor.

Description

Washing administration control device for automatic washing machine and its control method

The present invention relates to a washing operation control apparatus and a control method of the automatic washing machine, and to a washing operation control apparatus and a control method of the automatic washing machine to increase the washing efficiency of the washing cloth by controlling the washing motor by controlling the washing motor.

The conventional automatic washing machine inputs the entire washing stroke using a key input means that can input the whole washing stroke when the power is applied by the user (S1). When the user presses the operation button, the water administration proceeds (S2), and when the water administration ends, the washing administration for washing the laundry cloth proceeds (S3). The washing operation is performed by rotating the washing motor left and right alternately at a set speed by the strength of the washing water flow selected by the user. It is determined whether the washing set time has elapsed (S4). If the washing set time has elapsed (YES), the waste water generated by the washing administration is drained (S5). Again, a water supply stroke for rinsing the laundry cloth is made (S6), and when the water stroke is finished, a rinsing stroke for rinsing the laundry cloth is performed (S7). The rinse set time set by the user and the rinse set number of times are repeatedly performed, and the waste water generated by the rinse is drained (S8). When the drainage stroke is completed, a dehydration stroke is performed to dehydrate the wash water contained in the laundry cloth (S9). When the dehydration operation is completed, the power is automatically turned off after the set time (S10).

However, in the conventional washing machine as described above, when the washing water rotates during the washing process, the laundry cloth is concentrated in the center and twisted with each other, so that the washing motor takes a lot of load in the washing motor. In addition, there is a problem that the twisted laundry cloth is not solved by continuing the washing administration with the strength of the washing water flow already set by the user. In addition, since the washing motor takes a lot of load, the washing motor does not rotate at a set speed, and thus the washing water is weak, and the washing effect is weakened, so the washing effect is inferior.

Therefore, the present invention has been made to solve the above problems, an object of the present invention relates to a washing administration control method of a full automatic washing machine, to control the washing motor to increase the washing efficiency of the washing cloth by controlling the washing flow of the automatic washing machine washing An administrative control apparatus and a control method thereof are provided.

In order to achieve the above object, the washing stroke control apparatus of the automatic washing machine according to the present invention has a large amount of washing cloth during the washing stroke, causing an overload in the washing motor to detect that the set rotation speed of the washing motor is reduced. A sensing means and a washing motor rotational speed reduction means for reducing the rotational speed of the washing motor to reduce the strength of the washing water so that the washing cloth is released when the washing motor rotational speed detecting means detects that the washing motor rotational speed is decelerated; When the washing cloth is released by the washing motor rotation speed deceleration means, it is characterized in that the washing motor rotation speed reducing means for reducing the rotation speed of the washing motor to the set rotation speed in order to reduce the strength of the washing water.

In addition, the washing operation control method of the automatic washing machine of the present invention is a washing motor rotational speed detecting step of detecting that the washing motor is set to reduce the set rotational speed of the washing motor when the washing motor is overwhelmed with a large amount of washing cloth during the washing administration, and the Washing motor rotation speed deceleration step of decelerating the rotation speed of the washing motor to reduce the strength of the washing water so as to loosen the cloth when the washing motor rotation speed is detected in the washing motor rotation speed detection step, and the washing motor rotation speed When the washing cloth is released by the deceleration step, the washing motor rotational speed reduction step of reducing the rotational speed of the washing motor to the set rotational speed in order to reduce the strength of the washing water to its original state.

1 is a control flow chart showing a washing administration control method in a conventional automatic washing machine,

2 is a cross-sectional view of a fully automatic washing machine according to an embodiment of the present invention,

3 is a control circuit block diagram of a fully automatic washing machine according to an embodiment of the present invention;

Figure 4A, 4B is a control flow diagram illustrating a washing administration control method of a fully automatic washing machine according to an embodiment of the present invention.

* Description of the main parts of the drawings *

101 housing 103 tub

105: cleaner 107: washing tank and dehydration tank

108: pulsator 109: balancing device

111: tension bar 113: door

115: key input means 117: display means

119: power supply button 121: washing motor

123: clutch 127: power supply means

129: control means 131: feed water valve drive means

133: water supply valve 135: drain valve driving means

137: drain valve 138: water level detection means

139: washing motor drive means 143: memory

145: washing motor rotational speed detection means

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

As shown in Figure 2, the automatic washing machine of the present invention is a housing 101 that maintains the shape and protects the inside forms the outside. A tub 103 may be installed inside the housing 101 to store wash water at the time of washing. The tub 103 is provided with a washing tank and a dehydration tank 107 having a washing hole 105 so that the washing water is scattered by the centrifugal separation during the dehydration stroke.

A pulsator 108 integrally coupled with the washing tub and the dehydrating tank 107 is installed at the lower end of the washing tub and the dehydrating tank 107 to rotate the washing water.

Around the upper end of the washing tank and the dehydration tank 107 is equipped with a balancing device 109 is loaded with a liquid therein to reduce the unbalance during dehydration administration.

The housing 101 is provided with a tension bar 111 to support the tub 103 in an upward direction.

The door 113 which can be folded is provided in the upper center of the housing 101.

On the surface of the upper front side of the housing 101, a key input means 115 is installed to input the entire washing stroke by the user. The key input unit 115 is composed of keys for inputting a washing course, washing time, rinsing frequency, dehydration time, hot / cold water selection, water control, washing water control.

The display means 117 which is located in the vicinity of the key input means 115 and displays the data input by the key input means 115 and the washing administration progress is provided on the upper front side of the housing 101. .

On the upper rear surface of the housing 101, a power supply button 119 is provided to input an AC voltage to a power supply means 127 described later from an external AC power source.

A washing motor 121 is installed at the lower end of the housing 101 to rotate the pulsator 108 for rotating the wash water and the washing / dehydrating tank 107 integrated with the pulsator 108. One side of the washing motor 121 is provided with a clutch 123 to selectively transmit the rotational force of the washing motor 121 to the washing tank and the dehydration tank 107.

Next to the washing motor 121 is a washing motor rotational speed detecting means 145 for detecting the rotational speed of the washing motor 121 is installed.

As shown in FIG. 3, the power supply means 127 for supplying power to the automatic washing machine by pressing the power supply button 119 receives control voltage 220V from an external AC power source and controls 129 described later. It connects to the control means 129 mentioned later so that a DC voltage of 5V may be supplied.

The control means 129 is a microcomputer for controlling the entire washing process.

A water supply valve driving means 131 for opening and closing a water supply valve 133 which will be described later to supply washing water in the washing tank and the dehydration tank 107 during washing and rinsing operations of the automatic washing machine is connected to the control means 129. . A water supply valve 133 that is opened and closed by a drive signal of the water supply valve driving means 131 is connected to the water supply valve driving means 131.

Drain valve driving means 135 for opening and closing the drain valve 137 to be described later to discharge the washing water in the washing tank and the dehydration tank 107 during the washing stroke and rinsing stroke of the automatic washing machine is connected to the control means 129 have. A drain valve 137 that is opened and closed by a drive signal of the drain valve driving means 135 is connected to the drain valve driving means 135.

Level control means 138 for detecting the water level of the wash water supplied into and drained into the washing tank and dewatering tank 107 by opening and closing the water supply valve 133 and the drain valve 137 is provided to the control means 129. Connected.

The washing motor driving circuit 139 of the automatic washing machine is connected to the control means 129 to receive a control signal from the control means 129 and apply a voltage having a direction to the washing motor 121.

A memory 143 that stores the contents of the input data input by the key input means 115 and outputs preset data corresponding to the input data is connected to the control means 129.

Washing motor rotational speed detecting means 145 for detecting the rotational speed of the washing motor 121 to adjust the washing water flow in the washing tank and dehydration tank 107 is connected to the control means 129.

Hereinafter will be described in detail the operation and effect of the present invention in connection with the washing operation control apparatus and the control method of the automatic washing machine according to an embodiment of the present invention configured as described above.

It is assumed that the user opens the door 113 of the automatic washing machine and puts the laundry cloth into the washing tank and the dehydrating tank 107.

On the other hand, it is assumed that no voltage is yet supplied to the power supply means 127 from an external AC power source.

On the other hand, it is assumed that the water supply valve 133 for supplying the wash water into the washing tank and the dehydration tank 107 is closed.

In FIG. 4, S means step (STEP).

As shown in FIG. 4A, when the user presses the power supply button 119 in step S1, an AC voltage of 220 V is output to the power supply means 127 from an external AC power source. Then, the DC voltage of 5V rectified from the power supply means 127 to the control means 129 is supplied. The user inputs to the control means 129 by using the key input means 115 which can input the entire administration of the washing stroke. The control means 129 outputs a display signal to the display means 117 for displaying the content of the input data. By the display signal, the display means 117 visually displays the content of the input data so that the user can easily recognize it.

When the user presses an operation button (not shown) in step S2, the control means 129 outputs a control signal to the water supply valve driving means 131 to open the water supply valve 133. The water supply valve driving means 131 outputs a driving signal to supply the wash water to the water supply valve 133 by the control signal. The water supply valve 133 is opened by the driving signal, and the washing water is supplied into the washing tank and the dehydrating tank 107.

The water level detecting unit 138 outputs a detection signal to the control unit 129 when the wash water reaches the set water level. The control means 129 receiving the detection signal outputs a control signal to the water supply valve driving means 131 to close the water supply valve 133.

In response to the control signal, the water supply valve driving means 131 outputs a driving signal for stopping the supply of the wash water to the water supply valve 133. The water supply valve 133 is closed by the driving signal to stop the water supply.

When the water supply stroke is completed in step S3, the control means 129 outputs a control signal for driving the washing motor 121 to the washing motor driving means 139. In response to the control signal, the washing motor driving means 139 outputs a driving signal for washing the laundry cloth to the washing motor 121.

The washing motor 121 is rotated left and right alternately at the first set speed by the driving signal. The laundry cloth is washed by driving the washing motor 139.

In step S4, the control means 129 determines whether the washing time reaches the first washing setting time preset in the memory 143. As a result of this determination, if it is determined that the washing time has not reached the first washing setting time preset in the memory 143 (if NO), the flow advances to step S5. The first wash setting time is, for example, 30 minutes.

In step S5 the washing motor rotational speed detection means 145 detects the rotational speed of the washing motor 121 and outputs a detection signal to the control means (129). The control means 129 determines whether the rotational speed of the washing motor 121 is smaller than a preset limit speed set in the memory 143.

As a result of this determination, when it is determined that the rotational speed of the washing motor 121 is smaller than the preset limit speed set in the memory 143 (if YES), the processing proceeds to step S6.

In step S6, the control means 129 outputs a control signal to the washing motor driving means 139 to reduce the rotational speed of the washing motor 121. In response to the control signal, the washing motor driving means 139 outputs a driving signal for reducing the rotational speed to the washing motor 121.

As the rotational speed of the washing motor 121 is reduced to the second set speed by the driving signal, the washing water flow is weakened and the washing cloth is released. The washing motor 121 proceeds with washing the cloth at the same time as the washing proceeds at a reduced second set speed.

In step S7, the control means 129 reduces the washing motor 121 to the second setting speed and determines whether the time for which the washing operation has been performed reaches the second setting time preset in the memory 143.

As a result of this determination, when it is determined that the washing motor 121 is reduced to the second setting speed and the washing operation proceeds to the second preset time set in the memory 143 (YES). Proceed to step S8. The second setting time is, for example, 5 minutes.

In step S8, in order to reduce the rotational speed of the washing motor 121 to the first set speed, the control means 129 operates the washing motor 121 in a state in which the washing motor rotational speed detecting means 145 does not operate. The control signal for driving is output to the washing motor driving means (139).

The washing motor driving means 139 outputs a driving signal for washing the laundry cloth evenly distributed in the washing motor 121 by the control signal. The washing motor 121 is rotated left and right alternately for a third set time by the driving signal. The laundry cloth evenly distributed by the washing motor 139 is washed. The third setting time is, for example, one minute.

In step S9, the control means 129 determines whether the washing administration remaining time reaches the washing remaining time T4 preset in the memory 143. As a result of this determination, when it is determined that the washing administrative remaining time reaches the washing remaining time T3 preset in the memory 143 (YES), the flow proceeds to step S9. The washing remaining time preset in the memory 143 is, for example, 5 minutes.

As shown in FIG. 4B, in step S10, the control means 127 removes the washing motor 121 so as to untwist the washing cloth generated by the rotation of the washing tank and the dehydrating tank 107 and the pulsator 108. The control signal for driving is output to the washing motor driving means (139). In response to the control signal, the washing motor driving means 139 outputs a driving signal for releasing the laundry cloth to the washing motor 121.

The washing motor 139 rotates left and right alternately by the driving signal. By the driving of the washing motor 139, the foaming flow of the washing cloth is released.

When the washing stroke is completed in step S11, the control means 129 outputs a control signal for opening the drain valve 137 to the drain valve driving means 135. In response to the control signal, the drain valve driving means 135 outputs a driving signal for draining the waste water generated by the washing stroke to the drain valve 137.

The drain valve 137 is opened by the driving signal, and the waste water is discharged to the outside of the housing 101 through the drain valve 137.

When the drainage stroke is completed in step S12, the control means 129 outputs a control signal for opening the water supply valve 133 to the water supply valve driving means 131. In response to the control signal, the water supply valve driving means 131 outputs a driving signal to the water supply valve 133 to rinse the laundry cloth.

The water supply valve 133 is opened by the driving signal, and the washing water is supplied into the washing tank and the dehydrating tank 107. The washing water flows in as much as the water level input to the control unit 129. When the quantity of washing means 138 detects the amount of washing water and reaches the input amount of washing water, the control means 129 outputs a control signal for closing the water supply valve 133 to the water supply valve driving means 131.

In response to the control signal, the water supply valve driving means 131 outputs a driving signal for stopping the supply of the washing water to the water supply valve 133. The water supply valve 133 is closed by the driving signal to stop the supply of the wash water.

When the water supply valve 133 is closed in step S13, the control means 129 outputs a control signal for driving the washing motor 121 to the washing motor driving means 139. In response to the control signal, the washing motor driving unit 139 outputs a driving signal for rinsing the washing cloth to the washing motor 121. The washing motor 121 is driven by the driving signal, and the washing cloth is rinsed.

In step S14, the control means 129 determines whether the rinsing time has reached the rinse setting time preset in the memory 143. As a result of this determination, when it is determined that the rinsing time has reached the rinse setting time set in advance in the memory 143 (if YES), the processing proceeds to step S15.

In step S15, the control means 129 outputs a control signal for opening the drain valve 137 to the drain valve driving means 135. In response to the control signal, the drain valve driving means 135 outputs a driving signal for draining the waste water generated by rinsing the drain valve 137. The drain valve 137 is opened by the driving signal, and the waste water generated by the rinsing is drained to the outside of the housing 101.

When the drainage stroke is completed in step S16, the control means 129 determines whether the rinsing frequency is the rinse setting frequency input by the user in the memory 143. As a result of this determination, when the rinsing frequency is determined by the user to be the rinsing setting frequency input to the memory 143 (step YES), the flow advances to step S17.

In step S17, the control means 129 outputs a control signal for driving the washing motor 121 to the washing motor driving means 139. In response to the control signal, the washing motor driving unit 139 outputs a driving signal for dehydrating the washing cloth to the washing motor 121.

The washing motor 121 is driven by the driving signal. The washing tank and the dehydration tank 107 are rotated by the driving of the washing motor 121 to discharge the washing water contained in the washing cloth through the washing hole 105.

When the entire washing process is completed in step S18, the control means 129 outputs a control signal for initializing the contents of the input data remaining in the memory 143. By the control signal, the contents of the input data in the memory 143 are all initialized, and the power is automatically turned off after the set time.

On the other hand, when it is determined in step S4 whether the washing time has reached the first washing set time, when the control means 129 determines that the washing time has not reached the first washing set time (in the case of NO) Proceed to step S9.

On the other hand, as a result of detecting and determining the rotational speed of the washing motor 121 in step S5, the control means 129 determines that the rotational speed of the washing motor 121 is not smaller than the preset limit setting speed in the memory 143. If NO (NO), the process proceeds to step S3.

On the other hand, as a result of determining whether the washing process of the washing motor 121 at the second set speed in step S7 reaches the second preset time set in the memory 143, the control means 129 If it is determined that the washing time of the washing motor 121 at the second setting speed has not reached the second setting time preset in the memory 143 (NO), the process proceeds to step S6. .

On the other hand, as a result of determining whether the remaining washing administration time reaches the preset washing remaining time T4 in the memory 143 in step S9, the remaining control time of the washing means is stored in the memory 143. If it is determined that the preset washing time remaining T4 has not been reached (if NO), the flow advances to step S3.

On the other hand, as a result of determining whether the rinse time reaches the rinse setting time preset in the memory 143 by the control means 129 in step S14, the rinse time does not reach the rinse setting time preset in the memory 143. If NO is determined (NO), the flow proceeds to step S13.

On the other hand, when the control means 129 determines whether the rinsing frequency is the number of rinsing times input to the memory 143 by the user in step S16, when it is determined that the rinsing frequency is not the rinse time set by the user (If NO), the flow advances to step S12.

As the washing water rotates, the cloth is concentrated and tangled in the center to detect the decrease in the rotational speed of the washing motor that occurs when the laundry is washed. It works. In addition, there is a very excellent effect that the washing efficiency is increased by the stretching action and the bibim action by proceeding the washing in the unwrapped laundry cloth evenly distributed in the washing tank and dehydration tank. In addition, there is a very excellent effect that can reduce the power consumption by reducing the rotational speed of the washing motor.

Claims (4)

Washing motor rotation speed detection means for detecting that the washing motor is set to the set rotational speed of the washing motor is deformed when there is a lot of washing cloth during the washing administration twisted, Washing motor rotational speed reduction means for reducing the rotational speed of the washing motor to reduce the strength of the washing water so that the washing cloth is released when the washing motor rotational speed detecting means detects that the washing motor rotational speed is decelerated; When the washing cloth is released by the washing motor rotational speed reduction means of the automatic washing machine characterized in that the washing motor rotational speed reduction means for reducing the rotational speed of the washing motor to the set rotational speed in order to reduce the strength of the washing water to its original state. Laundry administration control. Washing motor rotational speed detecting step of detecting that the laundry motor is set to the rotational speed of the washing motor is reduced when there is a lot of washing cloth during the washing administration, and the laundry motor is overloaded A washing motor rotation speed deceleration step of reducing the rotation speed of the washing motor to reduce the strength of the washing water so that the washing cloth is released when the washing motor rotation speed is detected in the washing motor rotation speed detecting step; When the washing cloth is released by the washing motor rotation speed deceleration step, washing of the washing motor rotation speed reducing step of reducing the rotation speed of the washing motor to the set rotation speed to reduce the strength of the washing water to its original state. Administrative control method. The method of claim 2, wherein in the washing motor rotation speed deceleration step, the washing speed of the washing motor is reduced so as to decelerate the rotation speed of the washing motor so as to release the cloth. The washing machine of claim 2, wherein the washing motor does not sense the rotational speed of the washing motor for a time until the washing motor is reduced to the set rotational speed in the washing motor rotational speed reduction step. Administrative control method.

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