KR20070072747A - A method for controlling a dehydration process of a quilt washing course and a washing machine controlling with the same - Google Patents

Abstract

A method for controlling a dehydration process in a quilt washing course and a washing machine controlled by the same are provided to start the dehydration process even when the measured unbalance amount is larger than a reference unbalance amount corresponding to a reference cloth amount group. A method for controlling a dehydration process in a quilt washing course includes the steps of: confirming whether a quilt washing course is selected; detecting the amount of cloth; measuring the unbalance amount; and determining the entry into the dehydration process by comparing the measured unbalance amount with a reference unbalance amount corresponding to a lower group of a reference cloth amount group if the detected cloth amount is smaller than the cloth amount of the reference cloth group in the state that the quilt washing course is selected.

Description

A Method for Controlling a Dehydration Process of a Quilt Washing Course and a Washing Machine Controlling with the Same}

1 shows a conventional washing machine.

2 shows a preferred embodiment of the present invention.

The present invention relates to a method for controlling a dehydration process of a washing machine and a washing machine thereof. More specifically, in the case where the amount detected during the dehydration process in the futon laundry course is smaller than that of the set reference amount group, the reference UB amount corresponding to the group below the reference amount group is determined when unbalance is determined. The present invention relates to a washing machine dehydration process control method and a washing machine which eliminates the problem of entering a dehydration process in a futon washing course.

Washing machine is divided into pulsator type, stirring type, drum type, etc. according to the washing method.

The drum washing machine is a device that allows laundry to be made by using the rotating drum and the friction force of the laundry by receiving the driving force of the driving unit while detergent, washing water and laundry are put into the washing drum. It does not get tangled, and it is designed to produce a laundry effect by tapping and rubbing.

The pulsator type washing machine is a product that removes various contaminants attached to clothes, bedding, etc. by using the emulsification of detergent, friction action of water flow due to the rotation of the washing blade, and impact action of the pulsator on the laundry. By detecting the amount and type of laundry, the washing method is automatically set, and the water level of the washing water is supplied to the appropriate level according to the amount and type of laundry, and then washing is performed under the control of the microcomputer.

The driving method of the washing machine is to transmit the rotational power of the driving motor to the washing shaft through the power transmission belt and the pulley to rotate the pulsator or to the dehydrating shaft to rotate the dehydrating tank for the washing tank and the BLDC motor. By controlling the speed, there is a method of rotating the washing / dehydration tank combined with the washing tank at different speeds.

In addition, there is also a method of controlling the power transmission path differently while using a BLDC motor to perform washing by rotating the pulsator at low speed during washing, and dehydrating by rotating the pulsator and the dehydrating tank at the same time at the same time.

In addition, a method of performing permeation by spraying the pumped water stream into the washing tank while rotating the washing tank or the washing blade at a high speed during washing is also applied.

1 is a longitudinal sectional view showing an example of a conventional washing machine, and shows a structural example of a washing machine that performs washing and dehydration by speed control of a BLDC motor.

Looking at the configuration briefly, the outer tank (2) supported by the suspension device (7) is installed in the outer case (1), the inside of the outer tank (2) washing tank combined dehydration tank (3) (hereinafter referred to as' washing tank) 'Or' dehydration tank '(optionally called) is rotatably installed.

In addition, a pulsator 4 is installed at the center of the bottom of the washing tub 3, and a motor 5 for transmitting a driving force to the washing tub 3 is mounted at one lower side of the outer tub 2.

In addition, a drain hose 11 is connected to the other side of the lower portion of the outer tub 2, and a drain valve 6 is provided on a conduit of the drain hose 11.

On the other hand, the top cover 12 of the upper case 1 is provided with a door 8, the water level sensor 9 is provided at a predetermined position of the top cover 12, the control of the top cover 12 The controller 300 is provided inside the panel.

And, between the water level sensor 9 and the outer tank 2 is connected to the pressure transmission tube 10 for transmitting the air pressure according to the level of the outer tank to the level sensor (9).

At this time, as the water level sensor 9, a water level sensor having a mechanical structure and a water level sensor using a semiconductor are usually applied.

On the other hand, the inside of the upper end of the washing tank (3) is provided with a fluid balancer 20 to reduce the unbalance of the washing tank by the fluid flow inside.

In the conventional washing machine configured as described above, when washing and detergent are put into the washing tank 3 and the washing start button is selected, washing starts and rinses over a predetermined time after water supply is made according to the control signal of the microcomputer after detecting the quantity of water. , Drainage and dehydration are automatically performed.

Meanwhile, a conventional washing machine has various washing courses according to various washing objects, and sets washing conditions such as washing time suitable for each washing course and sets them in the washing machine. If the user selects only the washing course according to the washing target, washing is performed according to the washing conditions specified in the washing course.

By the way, there is a problem in the dehydration process in the case of proceeding to wash the futon by selecting a conventional futon washing course.

In general, in the dehydration process in which the dehydration tank rotates at a high speed during the dehydration process, there is a problem of generating vibration or noise when the unbalance of laundry in the dehydration tank exceeds a reference value. Thus, before entering the dehydration process, the degree of unbalance is measured and compared with the reference value to determine whether to enter the dehydration process.

In addition, the reference value is set differently according to the degree of dose. The larger the amount of inertia, the larger the inertia, and the dewatering tank vibrates violently even under less unbalance. Therefore, the larger the amount of the amount, the smaller the unbalance reference value is set.

Here, the unbalance degree is using the UB amount, the UB amount is a numerical value defined to determine the unbalance degree. This can be defined in various ways. For example, the amount of UB can be defined as follows.

UB = kⅹIⅹRPM _ripple

Where k is the constant obtained from the experiment, I is the moment of inertia of the gun in the drum, and RPM _ripple is the ripple, or fluctuation, of the motor speed when the motor is controlled to rotate the dehydration tank at constant speed.

Usually, a quantity group is set up and down according to the magnitude | size of a quantity, and the reference UB quantity corresponding to each quantity group is set. Thus, by detecting the amount of water in the dewatering tank to find the appropriate amount of group, and using the corresponding reference UB amount to determine whether the degree of unbalance is below the reference value.

For example, the quantity group may be divided into small, medium, small, large, and the like, and the reference UB amount may be set to correspond to each quantity group.

By the way, when the futon washing course is selected and washes the bedding, since the bedding is usually more than the weight, washing and rinsing are performed under conditions of weight or more. Duvet washing is preferably performed under different conditions from laundry washing, and therefore, the futon laundering course performs washing under conditions corresponding to a weight group of more than the weight even if the weight is less than the weight.

There are cases where a quilt is put in a dehydration tank and a part of the quilt is stuck somewhere. At this time, even if the futon that can be detected more than the actual weight is detected as less than the weight. In this case, when the standard amount group of the quilt washing course is set to the weight, the washing machine performs washing on a weight condition and the like, so that the washing can be performed substantially cleanly.

However, the problem is when entering the dehydration process. When the amount of UB is measured to enter the dehydration process and compared with the reference UB amount corresponding to the weight, when the measured UB amount is larger than the reference UB amount, the dehydration process cannot be performed and the dehydration cannot be performed. .

An object of the present invention is to solve the above conventional problem.

When entering the dehydration process in the futon laundering course, the degree of unbalance is taken into consideration, but the dehydration process can be entered even when the measured UB amount is larger than the reference UB amount corresponding to the standard amount group.

The washing machine according to the present invention is provided with a quilt washing course, a course for quilt washing, and a plurality of quantity groups divided into upper and lower plurals according to the size of the quantity and the reference UB amount corresponding to each quantity group are set, respectively. In the washing machine is set to determine whether to enter the dehydration process by comparing the measured UB amount and the reference UB amount by measuring the amount of UB, each reference UB amount is set smaller toward the higher capacity group And a reference dose group for the futon laundering course is set, and when the detected amount of the futon washing course is smaller than the amount belonging to the reference amount group, the reference UB amount to be compared with the measured UB amount is The reference UB amount corresponding to the group below the capacity group is set to be used.

In addition, the method for controlling the dehydration process of the washing machine according to the present invention, there is provided a quilt washing course, a course for quilt washing, corresponding to a plurality of dose groups and each dose group divided into a plurality of up and down according to the size of the quantity In the method for controlling the dehydration process of the washing machine, the reference UB amount is set to each of the reference UB amount is set smaller toward the upper amount of the large dose group, the reference amount group for the futon washing course is set, A course checking step of confirming whether a futon laundry course is selected; A quantity sensing step of sensing quantity; UB amount measuring step of measuring the amount of UB; When the detected amount is smaller than the amount of the reference amount group in the state that the futon washing course is selected, dehydration to determine whether or not to enter the dehydration process by comparing the measured UB amount with the reference UB amount corresponding to the group below the reference amount group Determining whether to enter the process; Characterized in that it comprises a.

The course check step may be sufficient to recognize this when the user selects a bedding course. That is, when the user selects the bedding course for washing the bedding, the machine recognizes that the course is selected, thereby replacing the confirmation of the course confirmation.

However, in some cases, it may be necessary to separately check whether the quilt washing course is selected.

In addition, the quantity detection step is not necessarily just before entering the dehydration process, it may be made before washing when the quilt washing course is selected as described above.

In the above, the group below the reference dose group is preferably a group immediately below the reference dose group.

The group below the reference dose group has a reference UB amount larger than the reference UB amount corresponding to the reference dose group. Therefore, even if the measured UB amount is larger than the reference UB amount of the reference dose group, it may be less than the reference UB amount of the group below the reference dose group, so that the dehydration process can be entered.

In addition, when the measured UB amount is excessively large, the UB amount may be larger than the reference UB amount of the lower group. In this case, the UB amount is prevented from entering into the main dehydration process to prevent a large amount of vibration or noise due to excessive unbalance. do.

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

Figure 2 is a block diagram showing an example of a method for controlling the dehydration process of the washing machine in accordance with the present invention.

As shown, it is checked whether the quilt laundering course is selected and detects the amount of emptying. The amount of UB is measured to check the degree of unbalance, and the measured UB amount is compared with the reference UB amount to determine whether the unbalance is acceptable.

Here, the reference UB amount is a reference UB amount that is set corresponding to the quantity group to which the detected amount belongs. In the present embodiment, the amount group is divided into a small amount, a small amount, a small amount, a large amount, and the like, and the reference amount group for the quilt washing course is set to the weight.

The washing or rinsing or dehydration conditions suitable for each of the above-mentioned amount groups are inputted into the program. Such conditions can be obtained through experiments to ensure that washing and the like occur most efficiently.

After confirming that the quilt laundering course is selected, detecting the quantity of the dose and measuring the UB, it is determined whether the measured quantity is smaller than the quantity belonging to the weight of the reference quantity group.

At this time, if the measured amount is small, in order to determine the degree of unbalance, the measured amount of UB is compared with the reference UB amount of the small and medium amount in the step below the weight. And, if the measured UB amount is smaller than the small and medium reference UB amount, and enters the dehydration process, otherwise the UB error is displayed to inform the user that the degree of unbalance is unacceptable.

On the other hand, if the measured quantity of the above-mentioned weight is more than the weight, for example, if the weight or a large amount is determined whether or not to enter the main dehydration using the reference UB amount of the corresponding amount group.

In this case, if the measured UB amount is larger than the reference UB amount, the UB error display is notified to the user without entering the dehydration process.

In case of displaying UB error, it is desirable to stir and rotate the dehydration tank at low speed to even out the position of the quilt inside, reduce the unbalance degree, and measure the UB again and compare it with the standard UB quantity to determine whether or not this dehydration has entered. .

In this case, in the method shown in FIG. 2, the step after the UB measurement step can be performed. That is, in the case of UB error, the dehydration tank is rotated by stirring and rearranged, and the steps after the UB measurement step of FIG. 2 are performed.

The washing machine according to the present invention is a washing machine in which the control method is programmed as described above, and thus, a detailed description thereof will be omitted.

According to the present invention, such a conventional problem can be solved.

In particular, the degree of unbalance is taken into account when entering the dehydration process in the futon laundering course, but the dehydration process can be entered even when the measured UB amount is larger than the reference UB amount corresponding to the reference amount group.

Claims (4)

There is a quilt washing course, a course for quilt washing, and a plurality of quantity groups divided into upper and lower plural and reference UB quantities corresponding to each quantity group are set according to the size of the quantity, respectively, and the quantity is detected and the UB quantity is measured. In the washing machine is set to determine whether entering the dehydration process by comparing the measured UB amount and the reference UB amount, The reference UB amount is set smaller as the amount of higher dose to the higher dose group, and the reference dose group for the futon laundering course is set, so that the detected amount in the futon washing course is higher than the amount belonging to the reference dose group. And the reference UB amount to be compared with the measured UB amount if small is set such that a reference UB amount corresponding to a group below the reference amount group is used. The method of claim 1, And a group under the reference amount group is a group directly below the reference amount group. There is a quilt washing course, a course for quilt washing, and a plurality of quantity groups divided into upper and lower plurals according to the size of the quantity and the reference UB amount corresponding to each quantity group are set, respectively, wherein each reference UB amount is higher than the large quantity In the method of controlling the dehydration process of the washing machine is set smaller toward the amount of the group, the reference amount group for the futon washing course is set, A course checking step of confirming whether a futon laundry course is selected; A quantity sensing step of sensing quantity; UB amount measuring step of measuring the amount of UB; When the detected amount is smaller than the amount of the reference amount group in the state that the futon washing course is selected, dehydration to determine whether or not to enter the dehydration process by comparing the measured UB amount with the reference UB amount corresponding to the group below the reference amount group Determining whether to enter the process; Method for controlling the dehydration process of the washing machine characterized in that it comprises a. The method of claim 3, In the step of determining whether or not to enter the dehydration process, the group under the reference amount group is a method for controlling the dehydration process of the washing machine, characterized in that the group immediately below the reference amount group.

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