KR100240846B1 - Washing machine - Google Patents

Abstract

The present invention relates to an anti-fogging control method of a washing machine, which is particularly smooth operation during the dehydration stroke by minimizing the poling in the washing tank, which affects vibration and noise during dehydration, according to the laying state before dehydration. To get it.

In order to realize the object of the above example, the system turns on the drain pump in the drainage stroke and checks whether the drainage is advanced to a level below the water level (N) just before draining, and then turns off the motor if the water flows to the N-1 level. Or the left / right washing operation to the N-1 level (steps 101 to 108), and then the current level is divided into high / medium / low / small level with the motor off, and according to the drainage level. SUMMARY OF THE INVENTION An anti-fogging control method of a washing machine including a step of performing an inversion operation by a set inversion time and an operation time (steps 109, 110 to 118), and the like.

According to the present invention, when the dehydration is performed after the rinsing operation, the porch in the washing tank is minimized to prevent vibrations during dehydration, and the unnecessary work due to the unbalanced state can be significantly reduced, resulting in a good washing driving efficiency. It can be increased.

Description

How to prevent collapsing of washing machine

The present invention is to achieve a smooth operation during the dehydration stroke by minimizing the posing in the washing tank affecting the vibration, noise during dehydration in advance in the drainage stroke in accordance with the lay state before entering the dehydration of the washing machine.

In general, the automatic washing machine has a structure as shown in FIG. 1, which is an outer member 21 that surrounds the outer part of the washing machine, a washing tank 23 installed in the outer box 21 and rotating when dewatered, and the washing tank. The storage tank 22 which accommodates (23) and stores wash water, and the pulsator 24 which rotates at the time of washing in the lower part center of the washing tank 23 are provided.

In addition, in the system, the washing tank 23 is fixed at the time of washing, and the pulsator 24 is rotated at a predetermined RPM, and the washing tank 23 and the pulsator 24 are rotated at the same rotation speed when dewatering. A gear mechanism 27 for gear operation and a washing motor 25 connected to the gear mechanism 27 and the V-belt 26 are included.

A drain pipe 29 is connected to the reservoir 22, and the drain pipe 29 is provided with a drain valve 28 that is operated by electronic control.

On the other hand, the washing machine system is equipped with several washing courses (processes) so that the washing, rinsing, and dehydration time can be optimally adjusted according to the type and amount of the laundry. Several types of laundry courses are set up.

For example, such a washing course is divided into a blanket washing / purge washing / rapid washing / net washing / strong washing / late night washing / dust washing.

In the case of the blanket washing course, the system performs an operation of washing 14 minutes → 2 rinses → 5 minutes of dehydration.

In addition, the water level of the reservoir 22 is generally divided into four grades as shown in FIG. 2, and the four grades are divided into high water level, medium water level, low water level and small water level, and the water level is 40cm / 34cm / 28cm / 22cm. have.

On the other hand, conventionally, when draining the water in the reservoir before dehydration performed after the rinsing stroke, the drain valve 28 is opened by the drainage synchronous motor, and at the same time, the clutch of the gear mechanism 27 is pulled to power the pulsator 24. The method of separating from and the European method of operating the drain valve 28 as a drain pump irrespective of the clutch operation of the gear mechanism 27 is known.

However, in the case of the electronic system, when the washing machine system pulls the clutch of the gear mechanism 27 and energizes the washing motor while the pulsator 24 is separated from the power, the washing tank 23 contains water in the reservoir 22. It is not possible to operate the pulsator 24 by the washing motor during drainage because it causes problems such as excessive pressure in the system.

Therefore, in the prior art as described above, since the pulsator 24 cannot be operated during the drainage operation after the rinsing stroke, only the simple work of draining the water contained in the reservoir 22 can be performed in the drainage process. .

In this drainage process, it is difficult to avoid the system burden caused by balancing the vibration or unbalanced form during dehydration of the next administrator since the phenomenon in which the fabric in the washing tank 23 is turned to one side cannot be excluded.

An object of the present invention is to actively eliminate the various side effects due to defogging during dehydration in such a system by properly rotating the pulsator according to the water level when the drainage proceeds after the rinsing stroke of the washing machine to improve the above problems It would be.

In particular, the present invention, in order to realize the object of the above example, the system turns on the drain pump in the drain stroke and checks whether the water level has been advanced to the level below the level just before draining (N) by one level, and then the motor If it is off, perform the left / right washing operation up to N-1 level, and then, after the motor is turned off, the current level is divided into high / medium / low / small level and left / right by the time set according to the drainage level. Characterized in the anti-fogging control method of the washing machine including the step of performing the right operation.

Hereinafter, more specific features of the present invention will be understood by describing the same in detail with the accompanying drawings.

1 is a cross-sectional view showing the structure of a conventional fully automatic washing machine

FIG. 2 is a reference diagram illustrating the water level level supplied to the reservoir of FIG. 1.

3 is a block diagram of the main system excerpt circuit related to the present invention

4A and 4B are exemplary diagrams illustrating an anti-fogging control program according to the present invention.

** Explanation of symbols on the main parts of the drawing **

11. Water level detector 12. Microprocessor

13. Water supply and drainage drive 14. Washing motor drive

100. Anti-Polishing Control Program

Figure 3 shows an excerpt of the system circuit related to the present invention.

In this case, the water level detector 11 detects the water level in the reservoir 22 and provides it to the microprocessor 12, and the pulsator 24 is appropriately rotated according to the sensing input state of the water level detector 11 at the time of drainage. A microprocessor 12 is provided to control the drain valve 28 while rotating at a speed.

In addition, the output port of the microprocessor 12, the water supply and drainage drive unit 13 for driving the water supply and hot / cold water valves, and the washing motor drive unit 14 for performing the washing operation by rotating the left and right pulsator 24 ) Is connected.

The system is equipped with an anti-collimation control program 100 as shown in Figs. 4A and 4B.

This is done by checking whether the system is a drainage stroke and turning on the drainage pump (step 101, 102) if the drainage stroke, and the water level where the water level is set to one level by a certain level from the drainage level (N) set by the system manufacturer (N). -1) check whether the drainage has proceeded and if the water level falls by N-1, turn off the washing motor or check if the laundry on time has passed (steps 103 to 105), and if the laundry on time has not passed In the case of performing the laundry on-time, if not the step of checking whether the laundry on-time has passed (steps 105 to 107), and when the laundry on-time has not elapsed above, the laundry on-time is executed and the washing motor Turning off (step 108,109) and the like.

After that, the system checks whether the current level is a high level, and operates after the left / right inversion time and the driving time a of the pulsator 24 that is set to aim at a high level when the high level is high. (Steps 111) to 113), and when the current level is the medium level, operates by the left / right inversion time and the driving time b of the pulsator 24 which is set to aim at a possing state at the medium level. (Steps 114 and 115) to check whether the water level is low or not, and when the current water level is low, the left / right inversion time and driving time of the pulsator 24 set for aiming at low water level. if it returns after the operation by c, and if it does not return (steps 116, 117), and when the current level is a decimal position, the left / right side of the pulsator 24 set to aim at the possile of the minority position. After the operation time by half turn and drive time d it includes a step of returning (step 117 118), and the like.

1 and 3, when the user inputs the laundry into the washing tank 23 and selects the washing mode from the key input unit installed in the washing machine, the microprocessor 12 operates the water supply valve as in the normal operation. To open the water supply valve and supply water to the reservoir.

As described above, when the water supply operation is completed after supplying water to the reservoir 22, the microprocessor 12 will proceed with the washing operation according to the washing mode.

At this time, the microprocessor 12 recognizes this at the time of the drainage operation of the washing operation, and when the water level of the reservoir 22 is N before the water discharge level as shown in FIG. When the water level drops to N-1, the washing motor is turned off. If not, the washing motor is turned on and off. Run

Therefore, in this state, the cloths that will be collected in the washing tank 23 can be swept without being pulled out.

In addition, after the reversal operation of the pulsator 24 is completed for the short time, the current level is checked and the porosity in the washing tank 23 is drained according to the state of the high, medium, low and small water levels. In order to obtain a proper operation to solve the inversion time and the operation time of the pulsator 24 is to be performed by type.

At this time, for example, when the water level is a high water level, in addition to the operation of the pulsator (24) reversal time and operation time in consideration of the release operation for the fabrics in the washing tank 23, and the high water level to effectively perform the foaming release at high water level You can do it.

The left and right inversion time and operation time of the pulsator 24 for each level as described above can be set by the inflating effect experiment according to the level for each level.

Therefore, the cloths in the washing tank 23 can be released in a suitable state through the pulsator 24 reverse driving operation for each level along with the drainage operation, and vibration of the washing tub 23 tub is generated during the post-dehydration administration. Can be eliminated positively, and the supply of correction water according to the unbalanced state can be excluded.

Meanwhile, the above operation is performed by the microprocessor 12 together with the anti-fogging control program 100 as shown in FIGS. 4A and 4B, which checks whether the system is a drain stroke and turns on the drain pump if the drain stroke is performed. If the water level is lowered by N-1, check whether the water level has been drained by the water level (N-1) that is set in one stage from the water level before drainage (N) set by the system manufacturer. Otherwise, it is checked whether the laundry on time has elapsed (steps 101 to 105).

In addition, when the laundry on-time has not passed, the laundry on-time is not executed, and when the laundry on-time has not passed, it is checked whether the laundry on-time has passed, and when the laundry on-time has not passed, the laundry on-time has been executed. At that time, the washing motor is turned off (steps 106 to 109).

After that, the system checks whether the current level is a high level, and operates after the left / right inversion time and the driving time a of the pulsator 24 that is set to aim at a high level when the high level is high. If the current level is in the middle level, operate the left / right inversion time and the driving time b of the pulsator 24 set to aim at the collapsing state at the middle level. If the current water level is low level, operate after the left / right inversion time and driving time c of the pulsator 24 set to aim at the low porosity at low water level, and if it is not, check whether it is the minority level. When the current water level is a decimal position, the left / right inversion time and the driving time d of the pulsator 24 set to aim at the possile of the minority wish are operated. Steps 111-118).

In the present invention, the dehydration can be carried out without washing in the washing tank during dehydration after rinsing by releasing the pulsation driven by the pulsator for each level during the drainage operation in a washing machine for a European washing machine which performs the drainage function as a drainage pump. There is an effect that can reduce the occurrence of vibration during dehydration stroke and eliminate various side effects due to unbalance.

Claims (1)

In a fully automatic washing machine with a microprocessor, the system turns on the drain pump at the drain stroke, checks if the water level has been drained one level below the level just before the drain (N), and turns off the motor if it has reached the N-1 level. Left / Right washing operation to the N-1 level (step 101 to 108), and then left and right set according to the drainage water level by dividing the current water level into high, medium, low and small water level with the motor off Method for preventing anti-fogging of a washing machine comprising the step (step 109, 111 to 118) and the like to perform the left / right operation by the inversion time and the operation time

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