KR20100094683A - Washing machine and controlling method of the same - Google Patents

Abstract

PURPOSE: A washing apparatus and a control method thereof are provided to enable laundry to drop to the maximum during rotation by controlling the rotating speed of a drum based on a database in which the proper rotating speeds of a drum depending on the load of the laundry are stored. CONSTITUTION: A washing apparatus is composed of a cabinet, a tub, a drum, a measuring unit, and a control unit. The tub is installed in the cabinet. The measuring unit measures the load of the laundry in the drum. The control unit controls the rotating speed of the drum depending on the measured load of the laundry in a washing stage. The control unit controls the rotating speed of the drum depending on the measured laundry load in a drying stage. The control unit controls the rotating speed based on a database in which the proper rotating speeds of the drum are stored depending on the laundry load. The control unit controls so that the laundry has the maximum elevation difference while the laundry rotates.

Description

Washing machine and control method {WASHING MACHINE AND CONTROLLING METHOD OF THE SAME}

The present invention relates to a laundry machine and a control method thereof, and more particularly, to a laundry machine and a control method improved in structure to increase the dewatering or drying performance of the laundry.

In general, the laundry machine is a device for washing laundry through a process of washing, rinsing, and dehydrating to remove contaminants from laundry contained in the drum by using the washing water and detergent supplied into the tub.

Looking at the washing process of the washing machine, first, the quantity of clothes and the like put into the drum is measured, and the quantity of washing water and detergent and the total washing time are set according to the measured quantity, and then the drum is rotated with the whole washing time. A washing stroke is performed to separate the stains on the laundry due to friction between the wash water and the laundry.

When the washing stroke is completed, the turbid wash water in the tub is discharged and a new washing water is supplied to the tub to perform a rinsing cycle of rinsing the laundry for a set number of times. When the rinsing stroke is completed, the water in the tub is discharged and the drum is rotated at a high speed to perform a dehydration stroke to remove the water of the laundry by centrifugal separation. After the dehydration is completed, the laundry may be further dried through a drying stroke.

Here, looking at the rotational speed of the drum in the conventional laundry machine, the rotational speed of the drum is constant regardless of the load of the laundry.

As a result, the laundry may not achieve the maximum drop, and thus a limit point may not be achieved at the maximum washing performance.

The present invention has been made to solve the above problems, an object of the present invention is to provide a washing apparatus and its control method improved structure to increase the dewatering or drying performance of the laundry.

Laundry apparatus according to a preferred embodiment of the present invention to achieve the above object, the cabinet; A tub installed inside the cabinet; A drum rotatably installed inside the tub and containing laundry; Measuring means for measuring a load of laundry in the drum; And a control unit for controlling the rotational speed of the drum during the washing operation according to the load of the laundry measured by the measuring means.

In addition, the laundry machine according to another preferred embodiment of the present invention, the cabinet; A drum rotatably installed in the cabinet and accommodating dry matter; A heater for supplying hot dry air into the drum; Measuring means for measuring a load of the dry matter in the drum; And a controller for controlling the rotational speed of the drum according to the load of the dry matter measured by the measuring means.

According to one embodiment of the control method of the laundry machine according to another aspect of the present invention, the load measuring step of measuring the load of the laundry in the drum; A speed setting step of setting a rotation speed of the drum according to the measured load of laundry; And a washing step in which a washing stroke is performed while the drum rotates at the rotational speed set in the speed setting step.

Further, according to another embodiment of the control method of the laundry machine according to another aspect of the present invention, the load measuring step of measuring the load of the dry matter in the drum; A speed setting step of setting a rotational speed of the drum according to the measured load of the dried product; And a drying step in which a drying stroke is performed while the drum rotates at the rotational speed set in the speed setting step.

Washing apparatus and a control method according to the present invention, the rotational speed of the drum is set according to the load of the laundry to be the maximum drop of the laundry or dry during the rotation of the drum, it is possible to increase the dewatering or drying performance of the laundry.

1 is a side cross-sectional view schematically showing a washing apparatus according to an embodiment of the present invention.

Referring to the drawings, the washing apparatus of the present invention is rotatable inside the tub 120, the tub 120 is installed in the cabinet 110, the interior of the cabinet 110, the washing water is stored in the wash water is stored; And a motor 130 for driving the drum 130.

The cabinet 110 is coupled to the upper portion of the main body 111, the front plate 112 and the upper portion of the main body 111 to form a side, the back and the bottom, and forms the upper surface of the main body 111 A top plate 113 is provided.

At this time, the front plate 112 forms the front surface of the cabinet 110, the inlet 112a is provided to inject laundry, wherein the inlet 112a is installed to rotate in the cabinet 110 It is opened and closed by the door 115.

In addition, the upper portion of the tub 120 is supported on the upper portion of the cabinet 110 by the hanging spring 121, the lower portion of the tub 120 is supported by the friction damper 122 to the high speed of the drum 130 To reduce the vibration generated in the washing machine during rotation.

In addition, a lift 131 is provided on the inner circumferential surface of the drum 130 to raise the laundry put into the drum 130 to a predetermined position, and a plurality of washing water is discharged from the drum 130 in a washing stroke such as dehydration. A through hole 132 is formed.

On the other hand, in the upper side of the tub 120, the water supply hose 140 and the water supply valve installed on the water supply hose 140 to supply water from the external water source to the inside of the tub 120 ( 141 and a detergent supply device 142 is provided with detergent so that the water supplied through the water supply hose 140 is introduced into the tub 120 together with the detergent.

In addition, a drain hose 150 and a drain pump 151 are installed at the lower side of the tub 120 to discharge the wash water used for washing and rinsing to the outside.

In addition, the motor 160 mounted to the rear of the tub 120 is coupled to the drum 130 through the rotation shaft 165 to rotate the drum 130.

On the other hand, the washing machine is provided with a circulation duct for circulating the air for the drying administration. That is, the circulation duct is configured to draw out the air inside the tub 120 and heat it to flow back into the tub 120.

Here, the drying duct 172 and the condensation duct 174 are provided in the circulation duct. In this case, a heater 173 and a blowing fan 173a are installed in the drying duct 172 to discharge hot air into the tub 120.

The drying duct 172 and the condensation duct 174 are installed to communicate with each other and to communicate with the drum 130, the inlet 120a through which the hot air flows through the drying duct 172. And a discharge port 120b through which air is discharged to the condensation duct 174.

In addition, the condensation duct 174 is provided with a water supply 176 for supplying cooling water to condense moisture in the air.

On the other hand, the laundry machine configured as described above includes a measuring means for measuring the load of the laundry in the drum 130, and a control unit electrically connected to the measuring means and controls the rotational speed of the drum (130).

The measuring means is a device for measuring the load of the laundry accommodated in the drum 130 for washing, the motor 160 acts on the motor 160 when the drive unit rotates the drum 130 to rotate the laundry Measure the load.

As the measuring means measures the load acting on the motor 160, the load of the laundry accommodated in the drum 130 can be known, and the measurement of the load is transmitted to the controller electrically connected to the measuring means.

Here, the measuring means may be utilized without limiting any conventional measuring member as long as it is a measuring member capable of measuring the load of the weight acting on the motor 160 in a device having a structure such as a washing machine. If the measuring member having the function as described above in the same structure as the device is not limited by the present invention can use any measuring member.

As shown in FIG. 7, the controller is electrically connected to the measuring unit to control the rotational speed of the motor 160, which is a driving unit for rotating the drum 130 according to the load of the laundry measured by the measuring unit. Can be.

The control unit, it is preferable to control the rotational speed of the drum 130 during the laundry administration in accordance with the load of the laundry measured by the measuring means.

Looking at the rotation of the laundry during the laundry administration, the laundry rotates in accordance with the rotation of the drum 130 in the washing machine, at this time, because the lift 131 protruding on the inner surface of the drum 130 supports the laundry, the rotating drum 130 ), The laundry rotates smoothly.

Here, the rotating laundry is separated from the inner surface of the drum 130 or the lift 131 at a predetermined height to fall downward, and the time of the laundry is efficiently separated by friction with the wash water due to the fall of the laundry. .

Here, when the rotational speed of the drum 130 is constant, the rotation and dropping motion of the laundry according to the rotation of the drum 130 will be described.

As shown in FIG. 3, when the unloaded laundry 190 ′ is accommodated in the drum 130 relative to the rotational speed of the drum 130 as an example, the drop caused by the laundry 190 ′ rotates greatly. small.

That is, when the load of the laundry 190 'is smaller than the appropriate load relative to the rotational speed of the drum 130, the drum (130) after the peak 190 is rotated by a constant rotation of the drum 130 The distance from which laundry 190 'falls is small because it separates from and falls.

In addition, as shown in FIG. 4, when the overload laundry 190 is accommodated in the drum 130 relative to the rotational speed of the drum 130 as another example, since the laundry 190 rotates small, the drop due to this is small. do.

That is, when the load of the laundry is greater than the appropriate load relative to the rotational speed of the drum 130, the laundry 190 falls because the laundry 190 is not rotated high by the constant rotation of the drum 130, the laundry 190 falls. Distance is small.

On the other hand, as shown in Figure 5, as another example, if the appropriate load laundry 190 "relative to the rotational speed of the drum 130 is accommodated in the drum 130, because the laundry 190" rotates by an appropriate distance This is a big drop.

That is, when the load of the laundry 190 "is equal to the proper load relative to the rotational speed of the drum 130, since the laundry 190" is rotated by the constant rotation of the drum 130 to rise to an appropriate height, The distance that laundry 190 "falls is maximum.

As such, when the falling distance of the laundry 190 ″ is maximized, the washing efficiency thereof is also increased.

Accordingly, the controller of the present invention controls the motor 160 as the driving unit so that the rotational speed of the drum 130 is optimal so that the laundry can fall at the time of falling during rotation.

Further, the control unit, according to the load of the laundry in the drum 130 relative to the size of the drum 130, it is preferable to control the rotational speed of the drum 130 by a database in which the proper rotational speed is stored.

The database included in the control unit is organized by gathering data derived from the size of the drum 130 and the load of the laundry in a state where the rotational speed of the drum 130 is optimal so that the washing capacity is the maximum.

The controller controls the proper rotational speed of the drum 130 to maximize the drop of the laundry according to the load of the laundry measured by the measuring means.

On the other hand, the control unit controls the rotational speed of the drum 130 during the drying administration in accordance with the load of the laundry measured by the measuring means.

Inside the drum 130, it is preferable that a lift 131 is installed to draw up the dry matter and drop it to invert the dry matter to increase the drying efficiency.

In the laundry apparatus of the present invention, the laundry is turned upside down in the process of dropping the laundry by the lift 131 and then dropping the laundry.

Here, since the drying efficiency is also increased when the falling distance of the laundry becomes maximum, the control unit controls the rotational speed of the drum 130 to maximize the drop of the laundry. Of course, even in this case, the control unit preferably controls the rotational speed of the drum 130 by the above-described database.

On the other hand, Figure 2 is a side cross-sectional view schematically showing a washing apparatus according to another embodiment of the present invention.

Referring to the drawings, the washing apparatus includes a cabinet 210 forming an exterior, a drying drum 230 rotatably installed in the cabinet 210.

In addition, in a predetermined position of the cabinet 210, hot air supply duct 272 for supplying hot air generated by heating the air, that is, hot air, that is, hot air generated by the heater 270, to the drying drum 230. ) Is installed.

In addition, an exhaust duct 279 for discharging the humid air heat-exchanged with the dry matter in the drying drum 230, a blower unit 278 for sucking the humid air is also mounted.

On the other hand, the present invention illustrates and describes an indirect drive method for rotating the drying drum 230 using the motor 260 and the belt 265 for convenience, but is not limited thereto.

That is, the present invention is applicable to a direct drive method (Direct Drive Type) in which a motor is directly connected to the rear surface of the drying drum 230 to directly rotate the drying drum 230.

The internal space of the drying drum 230 functions as a drying chamber in which drying proceeds, and inside the drying drum 230, a lift 231 is installed to draw up and drop the dry matter to flip the dry matter to increase the drying efficiency. Do.

Meanwhile, the front supporter 240 and the rear supporter 250 are installed between the drying drum 230 and the cabinet 210, respectively.

That is, the drying drum 230 is rotatably installed between the front supporter 240 and the supporter 250, and leaks are formed between the front supporter 240 and the supporter 250 and the drying drum 230, respectively. A sealing member (not shown) for preventing is installed.

The front supporter 240 and the supporter 250 form a drying chamber by blocking the front and rear surfaces of the drying drum 230 and serve to support the front and rear ends of the drying drum 230.

In this case, an opening is formed in the front supporter 240 to communicate the drying drum 230 with the outside of the dryer, and the opening is selectively opened and closed by the door 214.

In addition, the front supporter 240 is connected to the lint duct 274, which is a passage through which the air of the drying drum 230 is discharged to the outside, the lint duct 274 is provided with a lint filter 275.

Meanwhile, one side of the blower unit 278 is connected to the lint duct 274, and the other side of the blower unit 278 is connected to the exhaust duct 279.

Therefore, when the blower unit 278 is operated, air inside the drying drum 230 is discharged to the outside through the lint duct 274 and the exhaust duct 279. Here, foreign matter such as lint and the like is filtered by the lint filter 275.

In addition, a plurality of through holes 250a are formed in the supporter 250, and the hot air supply duct 272 is connected to the through holes 250a.

On the other hand, the rear cover 212 is configured with a suction hole (212a) into which external air flows.

Washing apparatus configured as described above is a measuring means for measuring the load of the dry matter in the drying drum 230, and includes a control unit for controlling the rotational speed of the drying drum 230 according to the load of the dry matter measured by the measuring means .

At this time, the control unit by the database stored in the appropriate rotational speed of the drying drum 230 according to the load of the dry matter in the drying drum 230 compared to the size of the drying drum 230 to achieve the maximum drop when the building falls during rotation It is preferable to control the rotational speed of the drying drum 230.

Thus, the description of the measurement by the measuring means and the control by the control unit in the washing machine that can be dried only has been described in detail in the drying administration of the washing machine according to the above-described embodiment, and a description thereof will be omitted.

Then, one embodiment of a method for controlling a washing apparatus according to another aspect of the present invention will be described with reference to FIGS. 1, 6 and 7.

First, the laundry apparatus of the present invention measures the load of laundry in the drum 130. This is because to load the laundry to raise the laundry to a certain height so that the laundry in the drum 130 rotates to achieve the maximum drop when falling. Specific measurement method for this has been described above, and furthermore, the load measurement method of laundry in the drum 130 is not limited by the present invention.

Next, the rotational speed of the drum 130 according to the measured load of the laundry is set. The rotation speed of the drum 130 is set by the controller, and the controller is electrically connected to the measuring means for measuring the load of the laundry and receives the measured value.

Preferably, the rotational speed setting for the drum 130 of the control unit is made by a database.

At this time, the database is to store the appropriate rotational speed of the drum 130 according to the load of the laundry in the drum 130 compared to the size of the drum 130, so that the laundry can achieve the maximum drop when the rotation falls.

Finally, the washing stroke is performed while the drum 130 rotates at the rotational speed set in the speed setting step.

Washing apparatus according to the present invention can have a high washing capacity as the laundry falls while forming a maximum drop during the washing administration.

Furthermore, in the washing machine control method of the present invention, the drying stroke is performed while the drum 130 rotates at the rotational speed set in the speed setting step.

In this drying operation, the laundry may fall with the maximum free fall during the drying operation, thereby increasing the drying efficiency.

At this time, the drying administration may proceed successively after washing, and may proceed separately from washing.

On the other hand, with reference to Figures 2 and 7 for another embodiment of the control method of the laundry machine of the present invention.

First, the load of the dry matter in the drying drum 230 is measured, and the rotational speed of the drying drum 230 is set according to the measured load of the dry matter.

Next, the drying stroke is performed while the drying drum 230 rotates at the rotational speed set in the speed setting step.

Such a control method is performed in a laundry machine that can be dried. Accordingly, when the laundry has a maximum free fall during the drying administration, the laundry machine can realize a high drying efficiency.

Here, the rotational speed setting of the drying drum 230, the drying drum according to the load of the dry matter in the drying drum 230 relative to the size of the drying drum 230 to achieve the maximum drop when the building falls during rotation. Preferably, the proper rotational speed of 230 is achieved by means of a stored database.

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto and is intended by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

1 is a side cross-sectional view schematically showing a washing apparatus according to an embodiment of the present invention.

Figure 2 is a side cross-sectional view schematically showing a washing apparatus according to another preferred embodiment of the present invention.

3 is a view showing the drop of the overload laundry according to the constant rotational speed of the drum in the conventional washing machine.

Figure 4 is a view showing the drop of unloaded laundry according to the constant rotational speed of the drum in the conventional washing machine.

5 is a view showing the drop of the appropriate load laundry according to the constant rotational speed of the drum in the conventional washing machine.

6 is a flowchart illustrating a control method of the washing apparatus of FIG. 1.

7 is a block diagram illustrating a control unit of the washing apparatus of FIG. 1.

<Explanation of symbols for the main parts of the drawings>

110: cabinet 120: tub

130: drum

Claims (10)

cabinet; A tub installed inside the cabinet; A drum rotatably installed inside the tub and containing laundry; Measuring means for measuring a load of laundry in the drum; And A control unit for controlling the rotational speed of the drum during the washing stroke according to the load of the laundry measured by the measuring means; Laundry apparatus comprising a. The method of claim 1, The control unit, the washing apparatus characterized in that for controlling the rotational speed of the drum during the drying administration in accordance with the load of the laundry measured by the measuring means. The method according to claim 1 or 2, The control unit controls the rotational speed of the drum by a database in which the proper rotational speed of the drum is stored according to the load of the laundry in the drum relative to the size of the drum so that the laundry can fall at the time of falling during rotation. Washing apparatus, characterized in that. cabinet; A drying drum rotatably installed in the cabinet and accommodating a dry matter; A heater for supplying hot dry air into the drying drum; Measuring means for measuring a load of the dry matter in the drying drum; And A controller for controlling the rotational speed of the drying drum according to the load of the dried product measured by the measuring means; Laundry apparatus comprising a. The method of claim 4, wherein The controller may be configured to rotate the drying drum by a database in which an appropriate rotational speed of the drying drum is stored according to the load of the drying drum in relation to the size of the drying drum so that the building can achieve a maximum drop when the building falls during rotation. Washing apparatus, characterized in that for controlling the speed. A load measuring step of measuring a load of laundry in the drum; A speed setting step of setting a rotation speed of the drum according to the measured load of laundry; And A washing step in which a washing stroke is performed while the drum rotates at the rotational speed set in the speed setting step; Method of controlling the washing apparatus comprising a. The method of claim 6, A drying step in which a drying stroke is performed while the drum rotates at the rotational speed set in the speed setting step; Method of controlling the washing apparatus further comprising a. The method according to claim 6 or 7, The rotational speed setting of the drum in the speed setting step is performed by a database in which an appropriate rotational speed of the drum is stored according to the load of the laundry in the drum relative to the size of the drum so that the laundry can achieve a maximum drop when the laundry falls during rotation. Method for controlling the washing apparatus, characterized in that made. A load measuring step of measuring a load of the dry matter in the drying drum; A speed setting step of setting a rotational speed of the drying drum according to the measured load of the dry matter; And A drying step in which a drying stroke is performed while the drying drum rotates at the rotational speed set in the speed setting step; Method of controlling the washing apparatus comprising a. 10. The method of claim 9, The rotational speed setting of the drying drum in the speed setting step, the appropriate rotational speed of the drying drum according to the load of the dry matter in the drying drum relative to the size of the drying drum to achieve the maximum drop when the building falls during rotation Method of controlling a laundry machine, characterized in that made by a stored database.

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