KR20000014202A - Inner washing tub control method for automatic washing machine - Google Patents

Abstract

PURPOSE: An inner washing tub control method for a whole automatic washing machine is provided to improve the washing efficiency, and the dehydrating efficiency by increasing and by decreasing the number of the rotation of a motor according to the change of the pressure changed inside an air chamber. CONSTITUTION: The inner washing tub control method for the whole automatic washing machine to improve the washing efficiency comprises by: detecting the amount of the supply of the washing water supplied into an inner washing tub by a water level detecting sensor connected with an air chamber by pumping to the upside between an outer washing tub and the inner washing tub; increasing and decreasing the number of the rotation of a motor according to the change of pressure inside the air chamber; detecting the pressure of the washing water supplied into the inner washing tub by the centrifugal force to upside between the outer washing tub(103) and the inner washing tub(102) of the centrifugal transmitting washing machine(101); and pumping the washing water by reducing the number of the rotation of the motor(107) when the detected pressure of the water level detecting sensor is over the established pressure.

Description

How to control the washing tank of the automatic washing machine

The present invention relates to a fully automatic washing machine. In particular, the pumping pump is pumped to the upper part between the washing tank and the washing tank to detect the amount of washing water supplied to the washing tank by the water level sensor connected to the air chamber to change the pressure change in the air chamber. Accordingly, the present invention relates to a washing machine control method of a fully automatic washing machine, which is capable of improving washing performance and rinsing performance by increasing and monitoring the number of revolutions of a motor.

The structure of a washing machine for agitated washing by a conventional pulsator is shown in FIG.

The washing machine 1 and the laundry outer tank (2) that can store the wash water,

A washing tub (3) installed inside the washing tub (2) for washing laundry;

A pulsator (4) installed on the inner bottom surface of the washing tub (3) to impart mechanical rotational force to the laundry while performing forward and reverse rotation, and stir washing the laundry;

A washing shaft 6 coupled to the pulsator 4 to rotate the pulsator 4 forward and reverse,

A dewatering shaft 6-1 coupled to the washing tub 3 to rotate the washing tub 3 in one direction;

A clutch 7 for coupling or separating the washing shaft 6 and the dehydrating shaft 6-1;

A motor 8 connected to the clutch 7 and a pulley and a belt to transfer the rotational force to drive the clutch 7,

In order to discharge the washing water of the washing tub 2 to the outside, it is configured to have a drain valve 9 coupled to the washing tub 2.

Referring to the operation of the conventional washing machine as described above are as follows.

Put the laundry inside the washing tank (3) and press the start button, the water is supplied.

The wash water supplied to the washing tub 3 is filled with the washing tub 3 and the washing tub 2, and the water supply is stopped by the sensor when the predetermined level is reached.

At the same time as the water supply is stopped, the motor 8 rotates forward and backward while rotating the washing shaft 6 forward and reverse.

Accordingly, the pulsator 4 connected to the laundry shaft 6 washes the laundry while the forward and reverse rotations are performed.

In addition, when the washing is completed, the drainage valve 9 is opened while the drainage process is opened, and the washing water of the washing outer tub 2 is drained to the outside by opening the drainage valve 9.

In addition, when the drainage process is completed, a dehydration process for draining the wash water staying with the laundry in the washing tub 3 is followed.

In the dehydration process, the washing tub 6 and the pulsator 4 are integrally rotated in one direction at a high speed in a state in which the washing shaft 6 and the dehydration shaft 6-1 are coupled to the plurality of washing holes. Dehydration to the laundry outer tank (2) through (5) and the wash water dewatered to the washing outer tank (2) is drained to the outside through the drain valve (10).

And, in order to detect the amount (water level) of the wash water supplied to the inside and outside of the washing tub 3, the washing water supplied to the washing tub 2 is supplied to the inside of the air chamber 10 to supply air therein. Will be compressed.

Therefore, the water level sensor 11 detects the degree to which the washing water compresses the air in the air chamber 10, and thus the water supply is possible at the set water level.

However, the air chamber 10 and the water level sensor 11 detects only the amount of wash water that is supplied and drained during the washing process and the rinsing process, and performs only a role of filling the washing water at the correct level. ) Has no relationship with the rotational speed.

The purpose of the present invention for solving and complementing such a conventional problem,

The washing tank and centrifugal washing tank of the centrifugal washing machine are pumped up to ensure that the washing water supplied to the washing tank is pumped precisely by the set amount, thereby improving the washing performance and the heme performance.

In order to achieve the above object, the present invention,

When the amount of washing water supplied to the washing tank is small, the water level sensor detects the pressure of the air chamber to increase the rotational speed of the motor and is supplied to the washing tank. When the amount of wash water is large, the water level sensor can detect the pressure of the air chamber to reduce the number of revolutions of the motor to achieve the object of the present invention.

1 is a cross-sectional view showing a conventional clutch type washing machine

Figure 2 is a cross-sectional view showing the present invention centrifugal washing machine

Figure 3 is a flow chart showing a washing tank rotation control process of the present invention centrifugal washing machine

<Code Description of Main Parts of Drawing>

101-Centrifugal Washing Machine 102-Laundry

103-Laundry 104-Air Chamber

105-level sensor 106-drive shaft

107-motor

Laundry internal rotation control method of the present invention will be described in detail with reference to Figs.

The air chamber 104 of the washing tub 103 receives the pressure of the wash water supplied to the washing tub 102 by a centrifugal force upward between the washing tub 103 and the washing tub 102 of the centrifugal washing machine 101. When the water level detection sensor 105 connected to the lower than the set pressure is detected to increase the number of revolutions of the motor 107 to pump the wash water,

When the detection pressure of the water level sensor 105 is more than the set pressure is made to reduce the number of revolutions of the motor 107 to pump the wash water.

Referring to the operation of the present invention as described above is as follows.

First, Figure 2 is a cross-sectional view showing a centrifugal washing machine of the present invention, when the laundry is put into the washing tank 102 of the washing machine 101, the amount of washing is detected and the amount of washing water is determined.

Then, when the washing water supply amount is determined, washing is performed by forward and reverse rotation of the washing tub 102 while supplying water.

At this time, the amount of wash water supplied to the washing tub 102 is different depending on the amount of laundry.

That is, when the amount of laundry in the washing tub 102 becomes large, the wash water is supplied at a high level, and when the amount of the laundry is medium, the wash water is supplied to the medium level, and when the amount of the laundry is low, the amount of the wash water is supplied to the low level.

In addition, when the water supply is completed as described above, the washing by performing the forward and reverse rotation of the washing tub 102 received the forward and reverse rotation of the motor 107 to the drive shaft 106.

On the other hand, the washing water of the washing tank 102 and the washing outer tank 103 is pumped between the washing inner tank 102 and the washing outer tank 103 by the forward and reverse rotation of the washing inner tank 102, the washing inner tank 103 Resuspended by) to centrifugal washing.

At this time, the washing water pumped between the washing tub 102 and the washing tub 103 is a difference in the centrifugal force occurs according to the increase and decrease in the number of revolutions of the washing tub 102, the washing water pumped by the difference in the centrifugal force The amount will also change.

That is, when the washing inner tub 102 rotates at a low rotation speed, the centrifugal force is applied to the washing water to be pumped, thereby pumping a small amount of the washing water.

In addition, when the washing tub 102 rotates at a large number of rotations, a large amount of centrifugal force is applied to the washing water to be pumped.

Therefore, in the present invention, the amount of washing water pumped between the washing inner tub 102 and the washing outer tub 103 can be optimally supplied in accordance with the amount of laundry and washing water.

First, the air chamber 104 formed in the washing outer tub 103 of the centrifugal washing machine 101 of the present invention receives the pressure of the washing water supplied to the washing inner tub 102 and the washing outer tub 103 to the water level sensor 105. Will be detected.

In addition, the internal pressure of the air chamber 104 is sensitive to the change in the rotational speed of the washing tub 102 while sensing.

That is, when the washing inner tub 102 rotates with a small number of revolutions, since the centrifugal force on the washing water is small, the amount of washing water being pumped decreases and the washing water remaining in the washing outer tub 103 increases. The water level in the 104 becomes high, and the pressure in the air chamber 104 becomes high.

In addition, when the washing tub 102 rotates at a large number of revolutions, the centrifugal force applied to the washing tub is large, and thus the amount of washing pump pumped increases, and at the same time, the washing water remaining in the tub is reduced. The water level in the 104 is lowered and the pressure in the air chamber 104 is lowered.

That is, when the pressure of the air chamber 104 is lower than the set pressure, the rotation speed of the motor 107 is reduced.

When the rotation speed of the motor 107 is reduced as described above, the amount of wash water pumped by the lowering of the centrifugal force decreases, so that the set pressure is maintained while the water level in the air chamber 104 increases.

In addition, when the pressure of the air chamber 104 is higher than the set pressure, the rotation speed of the motor 107 is increased.

As described above, when the rotation speed of the motor 107 is increased, the amount of washing water pumped by the increase of the centrifugal force increases, thereby maintaining the set pressure while the water level in the air chamber 104 decreases.

Accordingly, by detecting the pressure change in the air chamber 104 by the water level sensor 105 to control the washing tub 102 to rotate at the optimum rotation speed at all times, it is possible to perform uniform washing and rinsing, and also to wash performance and rinsing. It can improve performance.

Such a series of washing procedures are shown in the flute chart of FIG.

That is, when the quantity detection (S1) of the laundry introduced into the washing tank 102 of the washing machine 101 is made, the amount of washing water is determined (S2) to start the water supply (S3).

Then, when the water supply (S3) is completed, the forward and reverse rotation (S4) of the motor is made and the water level sensor 105 detects whether the pressure in the air chamber 104 is the set pressure (S6).

At this time, when the pressure in the air chamber 104 is less than the set pressure (S7) to reduce the number of revolutions of the motor (S8) to return to the set pressure to perform the washing (S11).

In addition, when the pressure in the air chamber 104 is greater than the set pressure (S9) to increase the number of revolutions of the motor (S10) and down to the set pressure to perform the washing (S11).

In this invention, when the amount of washing water supplied to the washing tank is lowered through the washing tank and inner laundry tank, the level sensor detects the pressure of the air chamber and increases the number of rotations of the motor. When the amount of wash water supplied to the washing tank is large, the water level sensor detects the pressure of the air chamber and reduces the number of revolutions of the motor, so that the washing tank of the centrifugal washing machine and the external washing of the centrifugal washing machine are spun up to be supplied to the washing tank. The washing water is pumped precisely by the set amount, which has a useful effect of improving the washing performance and the heme performance.

Claims (1)

When the water pressure sensor connected to the air chamber of the washing tank detects the pressure of the washing water supplied to the washing tank by the centrifugal force upwards between the washing tank and the washing tank of the centrifugal washing machine, the motor rotates. To increase the number of pumps, When the detection pressure of the water level sensor is more than the set pressure washing washing control method of the automatic washing machine characterized in that to reduce the number of revolutions of the motor to pump the wash water.