KR20100102311A - Laundry machine and laundry method of using the same - Google Patents

Abstract

The present invention relates to a laundry machine and a washing method using the same, a tub in which washing water is accommodated, a drum rotatably provided inside the tub, a driving unit for rotating the drum, and an eccentric sensing for sensing an eccentric amount of the drum. And a control unit that performs low-speed dehydration stroke when the dehydration stroke does not satisfy the normal dehydration stroke condition according to the eccentric amount of the drum. By doing so, it is possible to shorten the initial time for entering the dehydration administration and the total time required for the washing process, and to minimize the difference between the expected time of the washing process and the actual washing time.

Description

Laundry device and laundry method using same {Laundry machine and laundry method of using the same}

The present invention relates to a laundry machine, and more particularly, to a laundry machine and a washing method using the same to shorten the dehydration administration and increase the time efficiency during the washing process.

In general, the washing machine is a product that removes various contaminants attached to clothes and bedding by using the emulsification of the detergent and friction action of the water flow due to the rotation of the pulsator or drum and impact on the laundry. Recently appeared automatic washing machine automatically proceeds a series of steps leading to a washing course, rinsing course, dehydration course, etc. without the user's operation in the middle.

Recently, the demand for a drum-type washing machine, which can reduce the overall height as compared to the pulsator washing machine that rotates with the washing tank standing, and hardly causes the laundry to be twisted and wrinkles on the laundry, is increasing. Is in.

Briefly describing the structure of the washing apparatus as described above, the main body cabinet forming the outer shape, the tub which is located inside the main cabinet and supported by the damper and the spring, the wash water is stored, and the laundry located inside the tub The drum is largely divided into a cylindrical drum, and the drum receives the driving force by the driving unit for washing the laundry put into the drum.

On the other hand, the laundry machine as described above is laundry is put into the drum, after the washing water and detergent is supplied, the washing is performed using the friction of the laundry and the free fall of the laundry and the wash water according to the rotation of the drum. The washing of the laundry is completed through a series of strokes such as rinsing, dehydration and drying.

On the other hand, the washing apparatus performs a dehydration stroke after the washing and rinsing stroke, and completes the inflated stroke. In the foaming stroke, the drum is rotated at a low speed compared to the dehydration stroke in order to release the tangled cloth in the washing and rinsing stroke, and thus the laundry cloth falls from the inner wall of the drum due to the lowering of the centrifugal force, thereby solving the tangling of the laundry cloth.

At this time, since the drum rotates at a higher speed than the foaming stroke in the dehydration stroke, when the laundry cloth in the drum enters the dehydration stroke in an eccentric state, vibration and noise are generated. This can happen.

Therefore, instead of performing high-speed dehydration immediately after the inflated stroke, accelerate the rotational speed of the drum to a lower preset speed, and then measure the variation in the rotational speed in that state to detect the eccentricity of the drum to enter the dehydration stroke. It is common to add steps to determine.

That is, the gist of the conventional eccentric detection method measures the amount of change in the number of revolutions during the detection of the eccentricity, and if the measured result is within a predetermined allowable range, the eccentric amount is determined to be small and enters the dehydration stroke. When the result of the measurement is obtained, the process is repeated after reducing the amount of eccentricity by re-entering the inflated stroke.

Through the above process, by detecting the amount of eccentricity in the drum in advance, it is possible to prevent the occurrence of vibration in advance, but it is not precisely timed to detect the amount of eccentricity and to reduce the amount of eccentricity to the allowable range. do.

Therefore, there is a problem that the initial time for entering the dehydration administration and the total time required for the washing process are not accurately predicted according to the eccentric amount of the laundry.

In addition, since the initial time for entering the dehydration administration and the total time required for the washing process are not accurately predicted, there is a problem that the difference between the expected time of the entire washing process and the actual washing time occurs.

The present invention has been made to solve the above problems, and an object thereof is to provide a washing apparatus and a washing method using the same to variably rotate the dehydration speed according to the amount of eccentricity in the washing apparatus.

In addition, the present invention has been made to solve the above problems, to provide a laundry apparatus and a washing method using the same to reduce the difference between the expected time required for the washing process and the time required for the actual washing to a minimum There is that purpose.

Washing apparatus according to an embodiment of the present invention for achieving the above object, a tub in which the wash water is accommodated, a drum rotatably provided inside the tub, a drive unit for rotating the drum, the eccentric amount of the drum It is preferable to include an eccentric sensing unit for detecting a low speed dehydration stroke when the dehydration stroke does not satisfy the normal dehydration stroke condition according to the amount of eccentricity of the drum.

The drive unit is preferably provided with an eccentric sensing unit for sensing the rotational speed of the drum to detect the amount of eccentricity of the drum.

The controller preferably measures the amount of eccentricity of the drum by a predetermined number of times, and then adjusts the dehydration rate by comparing with the preset amount of eccentricity.

The control unit preferably performs a low speed dehydration stroke when the sensed amount of eccentricity of the drum exceeds a preset amount of eccentricity.

The controller preferably performs a fast dehydration stroke when the sensed eccentricity of the drum does not exceed a preset eccentricity.

 Washing method using a washing apparatus according to an embodiment of the present invention for achieving the above object, the washing step of washing the fines loaded on the drum by supplying the wash water and detergent; A rinsing step of rinsing by supplying wash water to the washed cetal water; And a dehydration step of sensing an eccentric amount of the drum and adjusting the rotational speed of the drum in comparison with the eccentric amount of the drum and a reference eccentric amount.

It is preferable to further include a drying step of drying the laundry after the dehydration step.

The dehydration step is a bubble expansion step of unwinding the tightness of the laundry loaded on the drum; An eccentric measurement step of measuring an eccentric amount of the cetals loaded on the drum; It is preferable to include a selective dehydration step of selecting and performing a high speed dehydration stroke and a low speed dehydration stroke according to the measured eccentricity.

In the eccentric measurement step, the amount of eccentricity of the drum may be measured by a predetermined number of times, and then the dehydration speed may be adjusted by comparing with the eccentricity.

When the detected amount of eccentricity of the drum exceeds a predetermined amount of eccentricity, it is preferable to perform a low speed dehydration stroke.

When the detected eccentricity of the drum does not exceed a predetermined eccentric amount, it is preferable to perform a fast dehydration stroke.

According to the washing apparatus and the washing method using the same according to the present invention, by varying the dehydration rotation speed in accordance with the eccentric amount of the laundry, it is possible to shorten the initial time for entering the dehydration administration and the total time required for the washing process It has an effect.

In addition, according to the washing apparatus and the washing method using the same according to the present invention, by varying the dehydration rotation speed in accordance with the amount of eccentric laundry to perform the effect of reducing the difference between the expected time of the washing process and the actual washing time to a minimum There is.

Hereinafter, a washing apparatus and a washing method using the same according to an embodiment of the present invention with reference to the accompanying drawings will be described in detail.

In describing the present invention, the names of the elements defined are defined in consideration of functions in the present invention. Therefore, it should not be understood as a meaning limiting the technical components of the present invention. In addition, each name defined in each component may be referred to as other names in the art.

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

1 is a perspective view showing a washing apparatus according to an embodiment of the present invention, Figure 2 is a cross-sectional view showing the internal structure of the washing apparatus according to an embodiment of the present invention, Figure 3 according to an embodiment of the present invention It is a block diagram which shows the structure of the washing machine.

As shown, the laundry apparatus 100 according to the present invention includes a cabinet 10 forming an external appearance, a tub 30 provided inside the cabinet 10 and storing wash water, and an inner side of the tub 30. A drum 50 provided to be rotatable in the axial direction, a driving unit 70 for washing, rinsing, and dehydrating the laundry 1 introduced into the drum 50 by applying rotational force to the drum 50, and controlling each component. And a control panel 60 for operating the washing apparatus 100 and an operation panel 20 for controlling each component in connection with the control unit 60.

The cabinet 10 forms an outer shape of the washing apparatus 100 according to the present embodiment, and various components to be described later are mounted on the inside and the outside. In the front side of the cabinet 10, a door 12 for inserting the laundry 1 is rotatably provided.

The tub 30 is provided to accommodate the wash water inside the cabinet 10, and is formed in a shape of an enclosure opened to the door 12 to accommodate the laundry 1 introduced into the door 12.

In addition, the rear of the tub 30 is equipped with a drive unit 70 for rotating the drum (50). The drive unit 70 is made of a motor to rotate the drum 50, the rotational speed of the drive unit 70 is controlled under the control of the control unit 60. The structure and type of such a driving unit 70 are well known to those skilled in the art, and various embodiments are possible, so detailed description thereof will be omitted.

On the other hand, the driving unit 70 is provided with an eccentric sensing unit 74 for detecting the amount of eccentricity of the drum 50 rotated according to the rotational force of the driving unit 70. The eccentric sensing unit 74 controls the rotational speed of the drum 50 by sensing the eccentric amount of the laundry contained in the drum 50.

On the other hand, the tub 30 is elastically supported by the upper spring 31 and the lower damper 32. Accordingly, when the vibration generated when the drum 50 is rotated by the driving unit 70 is transmitted to the cabinet 10 through the tub 30, the vibration is buffered and attenuated by the spring 31 and the damper 32 to prevent the drum 50. Reduction of vibrations due to the rotation of) to the cabinet 10 is reduced.

In addition, the water supply hose 33 and the water supply valve 34 installed on the water supply hose 33 to supply water from the external water source to the inside of the tub 30 on the upper side of the tub 30. It is provided. Under the tub 30, a drain hose 36 and a drain pump 37 are installed to discharge the wash water used for washing and rinsing to the outside.

On the other hand, the outside of the tub 30 is provided with a circulation duct 40 for circulating the air for the drying administration of the washing apparatus 100. That is, the circulation duct 40 is configured to draw air from the inside of the tub 30 and heat it to flow back into the tub 30.

Here, the circulation duct 40 is divided into a drying duct 41 and a condensation duct 47. At this time, a heater 43 and a blowing fan 45 are installed in the drying duct 41 to discharge hot air into the tub 30.

The drying duct 41 and the condensation duct 47 are installed to communicate with each other and to communicate with the inside of the drum 50, and the tub 30 has an inlet 38 through which hot air is introduced through the drying duct 41. The discharge port 39 through which air is discharged to the condensation duct 47 is formed.

In addition, the condensation duct 47 is provided with a water supply 49 for supplying cooling water to condense moisture in the air.

The drum 50 is rotatably provided inside the tub 30, and the laundry 1 introduced into the door 12 is loaded and loaded into the drum 50. The drum 50 is formed with a plurality of drainage holes 52 through which the washing water passes, and inside the drum 50, the drum 50 is rotated to mount the laundry 1 loaded on the drum 50. A plurality of lifts 54 are formed to fall after falling, and the washing performance may be improved according to the flow of the laundry 1 by the lift 54.

The controller 60 controls the overall operation of the washing apparatus 100 and controls the washing apparatus 100 according to the setting of the washing apparatus 100. The controller 60 performs a washing stroke, a rinsing stroke, a dehydrating stroke, a drying stroke, and the like according to a user's washing process setting.

On the other hand, the control unit 60 detects the eccentric amount of the laundry loaded on the drum 50 by using the eccentric sensing unit 74 of the drive unit 70 in the course of the dehydration operation. The eccentricity of the laundry is controlled by repeatedly controlling the rotational speed of the drum 50 so as to satisfy the entry condition of the dehydration stroke during the washing process by using the amount of eccentricity sensed.

At this time, although the amount of eccentricity is not controlled by adjusting the rotational speed of the drum 50 more than a predetermined number of times, when the amount of eccentricity of the drum 50 is not controlled, the rotation corresponding to the dehydration rotational speed or the detected eccentricity is lower than the set rotational speed. The drum 50 is rotated at a speed to dewater the stroke.

The operation panel 20 is provided on the upper side of the door 12 as shown, and the display unit 26 for displaying the operation state of the operation unit 22 and the washing apparatus 100 to control the operation of the washing apparatus 100. Is provided. Here, the operation unit 22 and the display unit 26 are connected to the control unit 60 described above to control the operation of the washing apparatus 100, or display the operating state of the washing apparatus 100.

Accordingly, the operation of the laundry machine according to an embodiment of the present invention will be described in detail through the embodiment. Each element mentioned below should be understood with reference to the above description and drawings.

3 is a flow chart showing a washing method according to an embodiment of the present invention.

In the laundry apparatus 100 according to the present invention as described above, the laundry is first put in the tub 30, and when the desired washing mode is set, the washing apparatus 100 is driven.

Then, water is supplied to the tub 30, the washing stroke proceeds while the drum 50 is rotated by the driving of the drive unit 70 (step S110).

 When the water used for washing is discharged to the outside after washing, the water is supplied to the tub 30 again, and the rinsing stroke is performed while the drum 50 rotates (step S120).

Subsequently, when the rinsing stroke is completed, the inflating proceeds to release the tangled laundry cloth in the washing and rinsing stroke, and while the drum 50 is rotated at a constant speed, the eccentric detection unit 74 rotates the number of rotations of the driving unit 70. The amount of variation is measured to detect the degree of eccentricity of the laundry in the washing apparatus 100 (step S130).

Thereafter, the dehydration stroke is entered according to the eccentric amount of the drum 50 sensed by the eccentric sensing unit 74, and the spin speed is controlled by controlling the rotational speed of the drum 50 according to the eccentric amount (step S140).

Subsequently, when the dehydration stroke is completed, the drying stroke is further performed by supplying hot hot air through the circulation duct 40 to dry the laundry dehydrated in the drum 50. At this time, in order to improve the drying efficiency, the drum 50 may be rotated at a predetermined speed (step S150).

Hereinafter, the entry process of the dehydration stroke in the operation of the laundry machine of the present invention as described above will be described in detail.

Figure 4 is a flow chart illustrating a dehydration administration entry process of the washing method according to an embodiment of the present invention.

First, when the washing apparatus 100 finishes the washing stroke and the rinsing stroke, the washing apparatus 100 performs the preceding operation to enter the dehydrating stroke. Here, the preceding operation performs a foaming step (S131) of releasing the laundry tangled in the washing stroke and the rinsing stroke to measure the amount of eccentricity of the drum (50).

Thereafter, the control unit 60 detects the rotational speed of the drum 50 rotated by the driving unit through the eccentric sensing unit 74 of the driving unit 70 to detect the eccentric amount of the drum (step S133). At this time, the eccentric detection unit 74 of the drum 50 is detected by repeatedly performing according to a predetermined number of times.

Here, when the detected eccentricity is the amount of eccentricity corresponding to the normal rotational speed required for the normal dehydration stroke, it enters the normal dehydration stroke and performs a dehydration stroke (step S134). At this time, the rotational speed (A ') of the drum 50 required for the normal dehydration stroke is about 900 ~ 1100 RPM.

In addition, when the detected eccentricity is not the eccentricity corresponding to the normal rotational speed required for the normal dehydration stroke, the eccentricity may be repeatedly measured a predetermined number of times. The detection frequency of the detected amount of eccentricity may be performed several times to several tens of times. However, the detection frequency of the eccentricity is not limited.

At this time, if the eccentric amount is detected a predetermined number of times, but the eccentric amount corresponding to the normal dehydration stroke is not detected, the low speed dehydration stroke is performed by reducing the drum rotation speed. At this time, the rotational speed (A ") of the drum 50 required for the low speed dehydration stroke is about 800 ~ 900 RPM.

Here, in the case of the low speed dehydration stroke may be formed longer than the progress of the normal dehydration stroke may exhibit a dehydration effect similar to the normal dehydration stroke.

As described above, if the eccentricity condition for entering the normal dehydration stroke is not satisfied, the dehydration stroke is performed by entering the low speed dehydration stroke to prevent the consumption of the eccentricity detection time for the entry of the normal dehydration stroke. Can reduce the time it takes.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, The present invention may be modified in various ways. Therefore, modifications of the embodiments of the present invention will not depart from the scope of the present invention.

1 is a perspective view showing a washing apparatus according to an embodiment of the present invention.

Figure 2 is a cross-sectional view showing the internal structure of the washing apparatus according to an embodiment of the present invention.

3 is a flow chart showing a washing method according to an embodiment of the present invention.

Figure 4 is a flow chart illustrating a dehydration administration entry process of the washing method according to an embodiment of the present invention.

Figure 5 is a graph showing the rotational speed of the drum changes with the passage of time in the washing method according to an embodiment of the present invention.

Claims (11)

Tub for washing water, A drum rotatably provided inside the tub; A driving unit for rotating the drum, Eccentricity detection unit for detecting the amount of eccentricity of the drum, And a control unit for performing a low speed dehydration stroke when the dehydration stroke does not satisfy a normal dehydration stroke condition according to the eccentricity of the drum. The method of claim 1, The driving unit is a laundry machine, characterized in that for detecting the rotational speed of the drum eccentric sensing unit for detecting the amount of eccentricity of the drum. The method of claim 1, wherein the control unit Washing apparatus characterized in that for measuring the amount of eccentricity of the drum when the set number of times and then compared to the previously set amount of eccentricity to control the dehydration rate. The method of claim 3, wherein the control unit And a low speed dehydration stroke when the detected amount of eccentricity of the drum exceeds a preset amount of eccentricity. The method of claim 3, wherein the control unit And a high speed dehydration stroke when the detected eccentricity of the drum does not exceed a preset eccentricity. Washing step of washing the fines loaded on the drum by supplying the wash water and detergent; A rinsing step of rinsing by supplying wash water to the washed cetal water; And And a dehydration step of sensing an eccentric amount of the drum and adjusting the rotational speed of the drum in comparison with the eccentric amount of the drum and a reference eccentric amount. The method of claim 6, Washing method further comprises a drying step of drying the laundry after the dehydration step. The method of claim 6, wherein the dehydration step A foaming step of unwinding the tightness of the laundry loaded on the drum; An eccentric measurement step of measuring an eccentric amount of the cetals loaded on the drum; And a selective dehydration step of selecting and performing a high speed dehydration stroke and a low speed dehydration stroke according to the measured eccentricity. The method of claim 8, The eccentric measurement step is characterized in that the washing method characterized in that by measuring the amount of eccentricity of the drum by a predetermined number of times compared to the previously set eccentric amount to adjust the dehydration rate. The method of claim 9, And a low speed dehydration stroke when the detected amount of eccentricity of the drum exceeds a preset amount of eccentricity. The method of claim 9, And a high speed dehydration stroke when the detected amount of eccentricity of the drum does not exceed a predetermined amount of eccentricity.

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