KR101685360B1 - Control method of laundry treatment machine and laundry treatment machine - Google Patents

Abstract

More particularly, the present invention relates to a method of controlling a laundry processing apparatus and a laundry processing apparatus. More particularly, the present invention relates to a method of controlling a laundry processing apparatus and a laundry processing apparatus, The drainage is performed while the washing tub is rotating at a speed lower than the first set speed, the drainage is performed in a section where the washing tub is accelerated from the first set speed to the second set speed, and the drainage is performed in the section where the washing tub is rotated at the second set speed or more Thereby reducing drainage noise and reducing power consumption.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a laundry method,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laundry processing apparatus control method and a laundry processing apparatus. More particularly, the present invention relates to a laundry processing apparatus control method and a laundry processing apparatus, The present invention relates to a laundry processing apparatus control method and a laundry processing apparatus capable of reducing dewatering noise and reducing power consumption by intermittently operating the drainage apparatus in an ON state so as to be suitable for an area.

Generally, a laundry processing apparatus separates contaminants from clothes, bedding, etc. (hereinafter, referred to as "laundry") by using chemical action such as chemical decomposition of water and detergent and friction between water and laundry A washing machine, a drying device for dewatering and drying the wet laundry, a refresher for preventing the allergy caused by the laundry by spraying heated steam on the laundry, and a refresher for easily washing the laundry, And the like.

Meanwhile, the washing machine, which is a kind of laundry processing equipment, is divided into an agitator type, a drum type, and a pulsator type according to its structure and washing method. Such a washing machine normally performs a washing process, a washing process, a rinsing process, and a dewatering process in order to wash the laundry. Depending on the user's choice, the washing device can perform only a predetermined stroke in the above- Washing is done by the washing method.

On the other hand, a drainage device is provided in the laundry processing device for the dewatering process for draining the laundry from the laundry during the above-described washing process.

However, in the laundry processing apparatus according to the related art, since the drainage device is turned on until the dehydration of the laundry is completely finished during the dehydration process, the drainage noise due to the operation of the drainage device is increased, .

The present invention provides a laundry processing apparatus control method and a laundry processing apparatus capable of reducing drainage noise caused by the operation of a drain pump and reducing power consumption by intermittently draining water according to the rotational speed of the washing tub, The purpose.

A method for controlling a laundry processing apparatus according to the present invention includes a drainage step in which drainage is intermittently performed in accordance with a rotational speed section of the washing tub while dewatering while gradually increasing a rotational speed of the washing tub, A second drainage step for draining the water in a section where the washing tub is accelerated from the first set speed to a second set speed; And a third drainage step of performing drainage in a section in which the washing tub rotates at a speed higher than the second set speed.

Alternatively, the method for controlling a laundry processing apparatus of the present invention includes the steps of: performing a first drainage while accelerating the washing tub to a speed lower than a first predetermined speed; stopping the first drainage and accelerating the washing tub; Performing a second drainage in a section immediately before the rotational speed of the washing tub reaches a second set speed, stopping the second drainage and rotating the washing tub over the second set speed for a set time And performing a third multiple in a section immediately before the set time has elapsed.

A washing machine according to the present invention includes a water storage tank for storing wash water, a washing tank containing laundry and rotatably installed in the water storage tank, a pump for draining washing water in the water storage tank to the outside, And a control unit for controlling the operation of the pump in accordance with the rotation speed of the washing tub.

INDUSTRIAL APPLICABILITY The laundry processing apparatus control method and laundry processing apparatus of the present invention have an effect of reducing the overall operation time of the drain pump while ensuring sufficient dewatering performance.

In addition, the method and apparatus for controlling a laundry processing apparatus of the present invention can be applied to a washing machine in which only the rotational speed region of the washing tub, in which drainage of laundry is most smoothly performed after detecting the rotational speed of the washing tub, By turning on the apparatus, it is possible to prevent drainage noise from being generated and reduce power consumption.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

1 is a cross-sectional view of a laundry processing apparatus according to an embodiment of the present invention.
FIG. 2 is a graph showing the rotational speed of the washing tub and the drainage control in each dewatering section according to the dewatering time of the washing machine according to the embodiment of the present invention.
3 is a flowchart illustrating a method of controlling a laundry processing apparatus according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a laundry processing apparatus and a laundry processing apparatus control method according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view of a laundry processing apparatus according to an embodiment of the present invention. FIG. 2 is a graph showing the rotational speed of the washing tub and the drainage control in each dewatering section according to the dewatering time of the washing machine according to the embodiment of the present invention. 3 is a flowchart illustrating a method of controlling a laundry processing apparatus according to an embodiment of the present invention.

1, a laundry processing apparatus 100 according to an embodiment of the present invention includes a cabinet 111 for forming an outer appearance, a cabinet 111 disposed at an upper side of the cabinet 111, A door 113 for opening and closing an opened portion of the top cover 112, a control panel 119 disposed on the top cover 112 and receiving various operation commands from the user, A water tank 114 which is supported by a suspension and a damper and is disposed inside the cabinet 111 and has an inlet / outlet hole h formed on the upper side thereof; A water supply passage 146 for supplying wash water into the water storage tank 114 and the washing tub 115; a pulse heater 116 disposed below the washing tub 115 to generate a rotating water flow; When rotating the shaft 132 to rotate the washing tub 115 and / or pulsator 116, Includes a drain consisting of a driving unit 130, and a drain pump 144 and drain passage 142 for draining the wash water in the water storage tank 114.

The operation of the laundry processing apparatus 100 can be controlled by a user through the control panel 119 to select a programmed washing course such as standard washing, power saving washing, wool washing, hand washing and soaking, washing, rinsing, The operation of the laundry processing apparatus 100 is started by inputting various commands such as the user's selection of the individual washing cycle of the washing machine 100 and the input of the set time.

Thereafter, the wash water is supplied through the water supply channel 146 connected to the outside water source such as a faucet, and the water supply water is supplied into the washing tub 115 after passing through the detergent box 148.

When the water level in the washing tub 115 reaches a certain water level, the water supply of the washing water is stopped, and then the washing, rinsing and dewatering steps are sequentially performed by the rotation of the washing tub 115, .

In particular, the dewatering process proceeds to a process of separating water from the wet laundry contained therein while rotating the washing tub 115 at a high speed.

Meanwhile, the laundry processing apparatus according to an embodiment of the present invention controls the progress of the washing, rinsing, and dewatering steps sequentially, and in particular, a controller (not shown) for controlling the rotation of the shaft 132 according to a set speed ).

Hereinafter, the process of the dehydration process in the washing machine according to the embodiment of the present invention will be described in detail.

When the dewatering start signal is input to the control unit, the control unit accelerates the stopped washing tub 115 to control the washing unit 115 to reach the first set speed. Hereinafter, for convenience of explanation, the section in which the washing tub 115 is accelerated from the non-rotated state to the first predetermined speed is defined as the first dehydrating section, and the total time during which the first dehydrating section is performed is Is defined as a first set time. The first dehydrating section may include a section in which the washing tub 115 rotates at a constant speed at the first predetermined speed.

The first set speed and / or the second set time may be variously determined in various conditions such as the type of the laundry processing apparatus, the size of the washing tub 115, the weight of the laundry, and the like, It is natural that it can be calculated as experimental data to be executed and inputted to the control unit. The second set speed, the second set time, and the third set time described below can be variously calculated by the above-described logic.

Next, after the end of the first dewatering period, the control unit again accelerates the washing tub 115 to reach the second set speed having a value larger than the first set speed. Hereinafter, for the sake of convenience, as described above, a section in which the washing tub 115 is accelerated until it reaches the second set speed exceeding the first set speed is defined as the second dehydrating section, and the second dehydrating section is performed The total time is defined as a second set time.

Then, the control unit rotates the washing tub 115 at a speed higher than the second set speed for a third set time. At this time, it is a matter of course that the washing tub 115 can be rotated while maintaining the second set speed. Hereinafter, the period in which the washing tub 115 rotates at a speed higher than the second set speed is defined as a third dewatering period, and the total time during which the third dewatering period is performed is defined as a third set time.

The control unit terminates the dewatering process by controlling the deceleration of the washing tub 115 after the third dewatering period. (Braking Period) At this time, as a method of decelerating the washing tub 115, There may be a method in which the washing tub 115 is forcibly stopped so as to stop the washing tub 115 or the washing tub 115 is allowed to rotate without applying any electricity to the driving unit 130 so as to be stopped naturally.

On the other hand, under the predetermined condition, according to the experiment of the present applicant, in the first dehydrating section, the washing tub 115 is controlled to rotate at a speed of approximately 0 to 500 RPM, and about 77% of the washing water is dehydrated in this section. In the second dehydrating section, the washing tub 115 is controlled to rotate at a speed of approximately 500 to 1000 RPM, and approximately 16% of the washing water is dehydrated from the laundry in this section. Finally, in the third dewatering section, the washing tub 115 approaches approximately 1000 RPM, and approximately 7% of the wash water is dehydrated from the laundry in this section.

In the meantime, although the dewatering performance is varied depending on the rotational speed of the washing tub as described above in the method of performing the dewatering process by gradually increasing the rotational speed of the washing tub, the conventional dewatering device The drain noise generated therefrom (the drain noise here will be mainly due to the power noise generated when the drain pump 144 is operated), and an increase in the total power consumption, resulting in user dissatisfaction.

In this way, the drainage device is operated in the entire section of the dewatering stroke in order to discharge the water separated from the laundry continuously to the outside during the entire dewatering period irrespective of the amount of water contained in the laundry.

However, even if the drainage device is not operated, the water separated from the laundry can be stored in the water storage tank without affecting laundry in the washing tub at least by a certain level, and even if the drainage device is not operated for a predetermined level, It does not. In addition, the amount of water dehydrated from the laundry can be predicted to some extent by means of a laundry detecting means (not shown) for sensing the weight of the laundry.

The control method of the laundry processing apparatus according to an embodiment of the present invention controls the drainage apparatus to operate only in at least a part of the first dehydrating section, a part of the second dehydrating section and a part of the third dehydrating section.

In other words, as described above, the drainage device is operated during the first drainage set time only in a part of the first drainage section (the first drainage section) and only the second drainage section is operated in the second drainage section The drainage device is operated during the drainage set time, and the drainage device is operated during the third drainage set time only in some section (third drainage section) of the third drainage section.

For example, in the first dehydration section, the dehydration effect is most excellent, so that the dehydrated water needs to be continuously discharged. Therefore, assuming that the rotation speed range of the washing tub 115 in the first dewatering section is 0 to 500 RPM and the first set time is approximately 160 (s: second), the first drainage period is the rotation speed of the washing tub 115 Is set to have a first multiple set time for about 160s as an area with 0 to 500 RPM.

Since the dewatering effect in the second dewatering section is smaller than that in the first dewatering section, it is not necessary to operate the drainage device over the entire area of the second dewatering section. Therefore, assuming that the rotation speed range of the washing tub 115 is 500 to 1000 RPM in the second dewatering section and the second set time is about 200 s, the second drainage period is set in a range from the first set speed to the second set speed And is set in a predetermined section. In this embodiment, the second drainage period is set to a period in which the rotational speed of the washing tub 115 is 700 rmp to 950 RPM during the second dehydration section, and the drainage time is approximately 60 seconds.

That is, the controller stops the operation of the drain pump 144 when the first dewatering period ends, accelerates the driving unit 130 to increase the rotational speed of the washing tub 115, When the rotation speed of the washing tub 115 reaches 950 RPM, the control unit stops the operation of the drain pump 144 again. That is, in the entire second dewatering section in which the rotational speed of the washing tub 115 is accelerated from 500 RPM to 1000 RPM, the drainage pump 144 drains water in some sections (the rotational speed of the washing tub 115 reaches 750 RPM to 950 RPM) .

In the washing machine 100 according to an embodiment of the present invention, the laundry is dehydrated in the first dehydrating section and the first discharging section and the dehydrated washing water is drained at the same time. Therefore, in the second dehydrating section, The amount of dehydrated washing water is relatively reduced. Particularly, as described above, since the washing water contained in the washing tub 115 can be contained in the water storage tank 114 without washing the washing water into a certain amount, the drainage is performed only in a part of the second dehydrating section, It is possible to reduce the generation of noise and the power consumption without decreasing the dewatering and drainage efficiency as compared with the case where drainage is performed in the entire dewatering section.

Meanwhile, it is preferable that the second drainage period is set in a section between the first set speed (500RPM) at which the second dewatering section starts and the second set speed (1000RPM) at which the second dewatering section ends, Do.

In this embodiment, the second dewatering period is defined as a period in which the rotation speed of the washing tub 115 is 500 to 1000 RPM, and the second drain period is defined as a period in which the rotation speed of the washing tub 115 is 700 to 950 RPM The drainage is not performed in the section where the rotation speed of the washing tub 115 is 950 to 1000 RPM. However, this is an example in which the second drainage port is set in a part of the second dehydration section, and in the section of 950 RPM to 1000 RPM, It is also possible to set the second drainage period to be performed.

Finally, the third dehydrating zone is the region where the dehydrating effect is the smallest, and the remaining dehydration proceeds in the third dehydrating period after the dehydration proceeds at least about 90% in the first dehydrating section and the second dehydrating section. Therefore, it is not necessary to operate the drainage device over the entire area in the third dewatering section.

Assuming that the rotation speed of the washing tub 115 is 1000 RPM and the third set time is about 300 s during the third dewatering period, the third drainage period is a region where the rotation speed of the washing tub 115 is approximately 1000 RPM, Can be set to have a multiple setting time.

Here, it is preferable that the second drainage period and the third drainage period are set in a part near the end of each of the second drainage section and the third drainage section.

As described above, the first to third drainage periods to the third drainage period, the first drainage period to the third drainage period, the first set speed to the second set speed, and the first drainage set time to the third drainage set time, It is to be noted that the scope of the present invention is not limited by the numerical values set forth above.

That is, in the washing machine and the washing machine control method according to the embodiment of the present invention, the drainage device is operated over the entire range of the dewatering stroke, The power consumption can be reduced and the drain noise can be reduced.

Hereinafter, a method of controlling a laundry processing apparatus according to an embodiment of the present invention will be described with reference to the accompanying drawings (particularly, FIG. 3).

As shown in FIG. 3, the control unit determines whether the rotation speed of the washing tub 115 reaches the first predetermined speed (for example, 500 RPM) during the period corresponding to the first dewatering period, The pump 144 is turned on for the first drain setting time.

Next, after determining whether the rotational speed of the washing tub 115 has reached 500 RPM, the operation of the drain pump 144 is turned off when 500 RPM is reached. In this case, the first drainage section may include a section in which the washing tub 115 rotates at a constant speed at a first predetermined speed. After the washing tub 115 rotates at a first predetermined speed for a predetermined time, It is also possible to perform control so that the operation of the control unit 10 is stopped.

Here, the section for operating the drainage apparatus until the rotational speed of the washing tub 115 reaches 0 to 500 RPM is the first drainage port.

On the other hand, the controller determines whether the rotational speed of the washing tub 115 has reached 700 RPM, and then turns on the drain pump 144 when it reaches 700 RPM.

Next, if it is determined that the rotational speed of the washing tub 115 has reached 950 RPM, the operation of the drain pump 144 is turned off when the rotational speed reaches 950 RPM. At this time, the section where the rotation speed of the washing tub 115 is 700 to 950 RPM in which the drain pump 144 is operated becomes the second drain hole.

On the other hand, the controller turns on the operation of the drain pump 144 for about 30 seconds before the washing tub 115 is decelerated during the third dehydrating section, which is a section where the rotational speed of the washing tub 115 is maintained at about 1000 RPM . At this time, the section where the drain pump 114 is operated for 30 seconds becomes the third drain port.

Meanwhile, in the third embodiment, the rotation speed of the washing tub 115 is maintained at the second predetermined speed (1000 RPM) in the third dewatering period. However, in the third dewatering period, the washing tub 115 rotates It is needless to say that the washing tub 115 can rotate at a speed greater than 1000 RPM.

In the present invention, the rotation speed of the washing tub 115 is controlled by controlling the driving unit 130 based on a set value input to the control unit by a command input by a user or a preprogrammed dehydration algorithm or the like And. Accordingly, in the graph shown in FIG. 2, the rotational speed of the washing tub 115 varies finely with time, but it is physically difficult to perfectly match the set value inputted to the control unit with the rotational speed of the washing tub 115 The analysis of the graph shown in FIG. 2 may be interpreted within the scope of the present invention of controlling the rotation speed of the washing tub 115 according to the set value inputted to the control unit, It will also be understood that the scope of the present invention is not limited by the graph shown in FIG.

Hereinafter, a preferred embodiment of a method for controlling a drainage device of a laundry processing apparatus according to the present invention will be described in detail with reference to the accompanying drawings. However, it should be understood that the embodiments of the present invention are not necessarily limited thereto, and that various modifications and other embodiments falling within the scope of the present invention can be realized by a person having ordinary skill in the art to which the present invention belongs. Accordingly, the true scope of the invention should be determined by the following claims.

100: laundry processing device 111: cabinet
112: Top cover 114: Water tank
115: Washing machine

Claims (18)

And a drainage step of gradually increasing the rotation speed of the washing tub and intermittently draining the water in accordance with a rotation speed section of the washing tub while performing dehydration,
Wherein the drainage step comprises:
A first drainage step of operating the drain pump in a section where the washing tub is accelerated from a stop state and rotated below a first set speed;
Wherein the drain pump is not operated until the washing tub is accelerated from the first set speed to a predetermined speed and the drain pump is operated in a period where the drain pump is accelerated to a second set speed after the predetermined speed, ;
A third drain step of stopping operation of the drain pump and operating the drain pump after the washing tub is rotated for a predetermined set time or longer than the second set speed in a state in which the drain pump is not operated; And
And stopping the operation of the drain pump and braking the washing tub. delete The method according to claim 1,
Wherein the first drainage step comprises:
And operating the drain pump while constantly rotating the washing tub at the first predetermined speed. delete The method according to claim 1,
Wherein the second drainage step comprises:
Wherein the washing tub is operated in a period in which the washing tub rotates at a speed close to the second set speed among the first set speed and the second set speed. 6. The method of claim 5,
Wherein the second drainage step comprises:
Wherein the washing process is performed until the washing tub reaches the second set speed. delete delete delete The method according to claim 1,
Wherein the second drainage step comprises:
Wherein the washing machine is controlled within a range of 30% The method according to claim 1,
Wherein the third drainage step comprises:
Wherein the washing process is performed within a range of 10% of a period in which the washing tub rotates at a speed higher than the second predetermined speed. The method according to claim 1,
Wherein the execution time of each of the first drainage step, the second drainage step, and the third drainage step is gradually shortened. 13. The method of claim 12,
The total time at which the second drainage step and the third drainage step are performed,
Wherein the execution time of the first drainage step is shorter than the execution time of the first drainage step. delete delete delete A water tank in which wash water is stored;
A washing tub loaded with laundry and rotatably installed in the tub;
A drain pump for draining washing water in the water storage tank to the outside; And
And a control unit for controlling the operation of the pump in accordance with the rotational speed of the washing tub when the dehydration control command is inputted,
Wherein,
Wherein the controller controls the drain pump so that drainage is intermittently performed according to a rotational speed interval of the washing tub during dehydration while gradually increasing the rotational speed of the washing tub,
The drain pump is operated in a period in which the washing tub is accelerated from a stop state and rotated below a first predetermined speed and then the drain pump is not operated until the washing tub is accelerated from the first set speed to a predetermined speed , The drain pump is operated in a section accelerated to a second set speed after the predetermined speed, and then the operation of the drain pump is stopped, and in a state in which the drain pump is not operated, Wherein the water pump is operated after the water pump is rotated for a predetermined set time longer than the set speed and then the operation of the drain pump is stopped and the washing tub is braked. delete

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