KR20130114780A - Laundry machine and control method for controlling the same - Google Patents

Abstract

PURPOSE: A laundry machine and a control method thereof are provided to efficiently support a tub having an increased capacity using a supporting structure thereof. CONSTITUTION: A laundry machine has an air feeding course (S200). The air feeding course includes: a fan operating step (S210) of operating a fan which circulates air inside the housing space of the laundry machine through a duct; and a foreign matter removing step (S242) of removing foreign matters remaining in a filter with jetting washing water to the filter after temporarily stopping the operation of the fan. The fan is installed inside the duct forming a flow path in which the air inside the housing space is circulated. The filter removes the foreign matters from the air flowing in the duct. [Reference numerals] (S100) Firstly wash a filter; (S110) Is a fan being operated?; (S120,S241) Stop the operation of the fan; (S130,S242,S310) Provide washing water to the filter; (S150,S245,S330) Stop providing washing water to the filter; (S200) Air feeding course; (S210) Fan operation/drum circulation (RPM1); (S220) Operate a heater; (S230) Is filter cleaning needed?; (S243) Drum acceleration (RPM2); (S250) Operate the fan; (S260) Drum circulation (RPM1); (S270) Does the time to be set for air feeding elapse?; (S280) Heater OFF/stop the operation of the fan/stop the circulation of the drum; (S300) Secondly wash the filter

Description

Laundry machine and control method for laundry machine {Laundry Machine and Control Method for controlling the same}

The present invention relates to a laundry machine and a control method thereof.

In general, the washing machine is a device for removing various contaminants attached to clothes and bedding by using the friction force of the water flow and the impact force applied to the laundry according to the emulsification and pulsator or drum rotation. Recently, the fully automatic washing apparatus automatically performs a series of strokes leading to washing, rinsing, and dehydration even without a user's operation during operation of the washing apparatus.

In addition, the combined dry laundry device is a kind of washing machine that can dry the laundry after dehydration while at the same time performing the function of the above-described washing machine. Such a combined washing machine includes a condensation type dryer that draws air inside the tub, removes moisture in the air with condensate, and then heats and resupply the tub.

Briefly describing a condensation-type combined dry laundry device according to the prior art, the combined dry laundry device is a cabinet to form a receiving space therein, a tub provided in the interior of the cabinet, a drum rotatably installed in the inside of the tub Condensation duct formed on the outside of the tub so that the air drawn from the condensation, the duct connected to the condensation duct to heat the dehumidified air to provide the inside of the tub, the air of the tub is circulated along the condensation duct and the duct A circulation fan is provided to make it possible.

The combined drying apparatus having the above-described structure circulates air inside the tub through a circulation fan, and the air introduced into the duct is heated (hot air) by the heater and then supplied into the tub. The hot air supplied into the tub absorbs moisture from the laundry, converts it into humid air, and moves it to the condensation duct. The humid air introduced into the condensation duct moves to the duct after the moisture is removed (dehumidified).

As the laundry is dried through the above-described process, foreign matter (lint, etc.) contained in the laundry may also flow into the condensation duct along with the air and remain in the condensation duct, the circulation fan, and the duct.

Residual lint in the condensation duct can reduce the condensation efficiency.Lint remaining in the circulating fan can cause the circulation fan to fail.Residual lint in the duct can cause the heater to fail or overheat the heater. There was a problem.

Therefore, the conventional dry washing machine required a means for removing the foreign matter (lint, etc.) from the air discharged from the tub, a means for removing the foreign matter accumulated in the foreign matter removing means by using the dry-use washing machine for a long time.

In addition, the conventional dry washing machine should be provided with a separate condensation duct connecting the tub and the duct, the inside structure of the cabinet because the condensation means for dehumidifying the air discharged from the tub should be provided therein There is a problem of complexity and rising manufacturing costs.

The present invention is to solve the above-mentioned problems and to increase the capacity of the tub while having the same size as the conventional washing machine, and a washing apparatus having a support structure that can effectively support the increased tub capacity and its control method The task is to solve the problem.

In addition, the present invention is to solve the problem to provide a washing apparatus and a control method capable of condensing the air discharged from the tub without a separate condensation duct.

In another aspect, the present invention is to solve the problem to provide a laundry machine equipped with a filter for filtering foreign substances contained in the air discharged from the tub and a control method thereof.

In addition, the present invention is to solve the problem to provide a washing apparatus and a control method provided with a means for removing foreign matter remaining in the filter.

In another aspect, the present invention is to solve the problem to provide a laundry machine and a control method that can prevent the performance degradation of the laundry machine generated in the process of removing the foreign matter remaining in the filter.

In the control method of the laundry machine equipped with an air supply stroke for supplying heated air or unheated air to the clothes stored in the accommodation space, the present invention for solving the above problems is a flow path in which the air inside the accommodation space circulates Operating a fan provided inside the duct forming a circulating air in the accommodation space through the duct; It provides a control method of the laundry machine comprising the step of temporarily stopping the operation of the fan to remove the foreign matter remaining in the filter by spraying the washing water to the filter to remove the foreign matter from the air flowing into the duct.

Removing the foreign matter remaining in the filter may be performed when the amount of the foreign matter remaining in the filter reaches a set amount.

Removing the foreign matter remaining in the filter may proceed when the RPM of the fan increases by the set RPM from the minimum fan RPM of the step of operating the fan.

Removing foreign matter remaining in the filter may be performed when the RPM of the fan increases from 250 to 300 RPM from the minimum fan RPM of operating the fan.

On the other hand, the air supply stroke may be further provided prior to the step of operating the fan may further comprise a pre-washing step of supplying the washing water to the filter.

In addition, the control method of the laundry machine of the present invention may further include a filter first washing step of supplying washing water to the filter before the start of the air supply stroke.

In addition, the control method of the laundry machine of the present invention may further include a second washing step of supplying washing water to the filter after completion of the air supply stroke.

On the other hand, the air supply stroke is rotatably provided in the accommodation space further comprises the step of rotating the drum in which the clothes are accommodated, wherein in the drum rotation step the drum is supplied to the filter and introduced into the accommodation space It is preferable to rotate toward the falling direction of the washing water.

In addition, the drum rotation step may include an acceleration step of increasing the rotational speed of the drum during the process of removing the foreign matter remaining in the filter.

On the other hand, the present invention is a tub in which washing water is stored, a drum in which the clothes are stored inside the tub, a duct to form a flow path through which the air inside the tub is circulated, and the air inside the tub is circulated through the duct. Fan provided in the duct, a communication hole penetrating the circumferential surface of the tub and spaced apart from the center of rotation of the drum by a predetermined distance and connected to the duct, the air provided in the communication hole to move to the duct A control method for a laundry machine comprising a filter for removing foreign substances and a filter washing unit for supplying washing water to the filter to remove foreign substances remaining in the filter, the method comprising: operating the fan to circulate air in the tub; Stopping the operation of the fan; Supplying the washing water to the filter through the filter washing unit to remove foreign substances remaining in the filter; Resume the air circulation inside the tub by operating the fan provides a control method of a washing apparatus comprising a.

The present invention can increase the capacity of the tub while having the same size as the conventional washing machine, it is possible to achieve the effect of providing a laundry machine having a support structure that can effectively support the increased tub capacity.

In addition, the present invention can achieve the effect of providing a washing apparatus and a control method capable of condensing the air discharged from the tub without a separate condensation duct.

In addition, the present invention can achieve the effect of providing a laundry machine equipped with a filter for filtering foreign substances contained in the air discharged from the tub and a control method thereof.

In addition, the present invention can achieve the effect of providing a laundry machine equipped with a means for removing foreign matter remaining in the filter and a control method thereof.

In addition, the present invention can achieve the effect of providing a laundry machine and a control method thereof that can prevent the performance degradation of the laundry machine generated in the process of removing the foreign matter remaining in the filter.

1 is an exploded perspective view of a washing machine according to the present invention.
2 is a sectional view showing the internal structure of the washing machine according to the present invention.
3 is a perspective view of the tub and the air supply of the washing apparatus according to the present invention.
Figure 4 is a perspective view of the suspension unit of the washing apparatus according to the present invention.
Figure 5 is a side view showing a coupling state of the tub and the suspension unit of the laundry machine according to the invention.
Figure 6 shows the internal structure of the tub provided in the present invention.
7 and 8 illustrate the structure of the filter and the filter washing unit provided in the present invention.
9 to 11 show the control process of the laundry machine according to the present invention.
12 is experimental data observing the water film removal time according to whether the fan is operating.

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

Unless defined otherwise, all terms herein are the same as the general meaning of the term as understood by one of ordinary skill in the art to which this invention belongs, and if the terms used herein conflict with the general meaning of the term Are as defined herein.

On the other hand, the configuration or control method of the device to be described below is not intended to limit the scope of the present invention, but to describe the embodiment of the present invention, the same reference numerals are used throughout the specification the same components Indicates.

As shown in FIGS. 1 and 2, the laundry machine 100 of the present invention includes a cabinet 110 forming an external shape as shown, and an accommodation space provided in the cabinet to accommodate clothes.

The accommodation space may be provided only with the drum 130, or may be provided with a tub 120 fixed inside the cabinet 110 and a drum 130 rotatably provided in the tub 120.

Hereinafter, for convenience of description, the accommodation space will be described based on a structure including a tub and a drum.

In addition, the laundry machine 100 of the present invention passes through the tub 120, the rotating shaft 135 connected to the drum 130, the bearing housing 140 for supporting the rotating shaft 135, and the bearing housing 140 Drive motor (141, see FIG. 2) is provided in the rotating shaft 135 to transmit the rotational force, and coupled to the bearing housing 140 to support the structures connected to the bearing housing 140 while at the same time buffering vibration, shock, etc. It includes a suspension unit 150.

Furthermore, the laundry apparatus 100 according to the present invention includes an air supply device 160 (refer to FIG. 2) for processing clothes (drying clothes, cooling clothes after drying, removing dust, etc.) in a receiving space.

The air supply device 160 is fixed to the outside of the tub 120 to supply heated air (hot air) or unheated air to the inside of the tub 120, drying the clothes, cooling clothes dried through the hot air, or clothes Remove dust or odor remaining in the

The cabinet 110 includes a base 118 on which each component is supported, and a front panel 111 (see FIG. 2) in which an opening 112 is formed for loading laundry, and further includes a left panel 114 and a right panel ( 115, a rear panel 116, and a top panel 117 (see FIG. 2). In this case, the opening 112 of the front panel 111 is provided with a door 113 for opening and closing the opening 112.

In addition, a water supply hose 127 (refer to FIG. 3) connected to an external source of water supply to supply the washing water to the tub 120 is installed at an inner upper portion of the cabinet 110, and installed on the water supply hose. And a water supply unit including a water supply valve (not shown) for controlling the access of water, and a detergent supply device (not shown) through which detergent is introduced so that water supplied through the water supply hose is introduced into the tub 120 together with the detergent. . In addition, a drainage part 129 (see FIG. 6) including a drain hose and a drain pump is provided at an inner lower portion of the cabinet 110 to discharge the wash water used for washing and rinsing to the outside.

The tub 120 includes a front tub 121 constituting a front part and a rear tub 122 constituting a rear part as shown in Fig. The front tub 121 and the rear tub 122 are assembled by a combination of screws and the like, and form a space in which the drum 130 is accommodated.

Here, the front tub 121 is in contact with the door 113 is formed with an inlet (121a) is provided so that the laundry can be put. The inner circumferential surface of the inlet 121a is formed with a rim portion 121b protruding forward of the tub 120. The air outlet 165 of the air supply device 160 to be described later is connected to the rim portion 121b. On the other hand, the rim portion 121b is provided with a front gasket 124 (see FIGS. 1 and 2) for maintaining airtightness with the opening 112 formed in the front panel 111. The front gasket 124 also serves to prevent foreign matter from flowing between the tub 120 and the drum 130.

In addition, the rear tub 122 is provided with a through hole 122a penetrating the rear surface as shown in FIG. 1. The through hole 122a is provided with a tub back wall 125 and a rear gasket 126. The rear gasket 126 is connected to the through-hole 122a of the tub back wall 125 and the rear tub 122 to prevent the wash water from leaking in the tub.

Meanwhile, the tub back wall 125 vibrates with the drum 130 when the drum 130 rotates, but the tub back wall 125 of the tub back wall 125 does not interfere with the rear tub 122 when the drum 130 rotates. The outer circumferential surface is preferably spaced apart from the through-hole 122a of the rear tub at a sufficient interval.

Since the rear gasket 126 is made of a flexible material located between the through-back wall 125 and the through-hole 122a of the rear tub 122, the tub back wall 125 does not interfere with the rear tub 122 without relative movement. Allow to do The rear gasket 126 may have a corrugation that can be extended to a sufficient length to allow such relative movement of the tub back wall 125 (see FIG. 2).

Meanwhile, the tub 120 is vertically supported by the supporters 118a and 118b provided in the base 118 of the cabinet 110 as shown in FIG. 2 and at the same time a separate assembly (for example, screw screw, Bolts, etc.). In addition, the front panel 111 and the rear panel 116 or the left panel 114 of the cabinet 110 may be fixed by a combination not shown in the right panel 115.

As shown in FIG. 1, the drum 130 includes a front drum 131, a center drum 137, a rear drum 132, and the like.

The front and rear parts of the front drum 131 and the rear drum 132 are provided with a weight balancer 134 having a balancing function to suppress vibration of the drum 130 when the drum rotates. In addition, the inner surface of the center drum 137 is provided with a lift 133 (see Fig. 2) for moving the laundry.

On the other hand, the rear drum 132 is connected to the spider 136, a means for transmitting the rotational force of the rotary shaft 135 to the drum 130, the spider 136 is connected to the rotary shaft 135. Therefore, the drum 130 is rotated in the tub 120 by the rotational force of the rotating shaft 135 is transmitted through the spider 136.

Here, the rotating shaft 135 is directly connected to the drive motor 141 through the tub back wall 125. Specifically, the rotor of the drive motor 141 and the rotation shaft 135 are directly connected. The rear of the tub back wall 125 is coupled to the bearing housing 140 to be described later.

The bearing housing 140 rotatably supports the rotating shaft 135 between the drive motor 141 and the tub back wall 125. In addition, the bearing housing 140 is elastically supported from the base 118 through the suspension unit 150.

One surface of the bearing housing 140 is coupled to the tub back wall 125 located at the rear of the tub 120, and the rotating shaft 135 penetrates through the bearing housing 140 to drive the motor 140 located at the other surface of the bearing housing 140. ) Is coupled to the rotor. The bearing housing 140 includes a bearing (not shown) so that the rotating shaft 135 rotates smoothly, and the rotating shaft 135 is supported by the bearing (not shown).

In addition, as shown in FIG. 4, the first extension part 142 and the second extension part 144 are formed in a symmetrical shape in both the left and right radial directions of the bearing housing 140. The suspension unit 150 is fastened to the first extension part 142 and the second extension part 144, respectively, and the bearing housing 140 is elastically supported through the suspension unit 150.

Hereinafter, with reference to the accompanying drawings, the coupling state of the suspension unit according to the present invention will be described in detail.

The suspension unit 150 includes first and second weights 143 and 145 connected to the first and second extension parts 142 and 144 of the bearing housing, and first and second weights 143 and 145 respectively. First, second and third spring dampers connected to the first and second suspension brackets 151 and 154 and the first and second suspension brackets 151 and 154 and the bearing housing 140 to elastically support the bearing housing 140. 152, 155, and 157, and first and second dampers 153 and 156.

The first and second weights 143 and 145 serve to grasp the center of gravity when laundry is accommodated in the drum 130, and also serves as a mass in the vibration system in which the drum 130 vibrates.

The first spring damper 152 is connected between the first suspension bracket 151 and the base 118, and the second spring damper 155 is connected between the second suspension bracket 154 and the base 118. The third spring damper 157 is directly connected between the bearing housing 140 and the base 118. Each spring damper (152, 155, 157) is in the form of being buffered at one location in the rear, and two places in the front left and right.

The first damper 153 is inclined between the first suspension bracket 151 and the base 118, and the second damper 156 is inclined between the second suspension bracket 154 and the base rear. .

Preferably, the first and second weights 143 and 145, the first and second suspension brackets 151 and 154, the first and second spring dampers 152 and 155 and the first and second dampers 153 and 156 are drums. It is formed symmetrically around the axis of rotation of 130, each damper is connected to the base 118 via a separate rubber bushing is coupled to the tilt (tilt) at a predetermined angle. The drum 130 and the bearing housing 140 are supported in the tub 120 by the first and second suspension brackets 151 and 154 and the first, second and third spring dampers 152, 155 and 157. do.

The drive motor 141 is fastened to the rear of the bearing housing 140 and directly connected to the rotating shaft. The drive motor 141 is provided to control the speed by a controller (not shown). The structure and type of the driving motor 141 are well known to those skilled in the art, and various embodiments are possible, so detailed description thereof will be omitted.

The laundry machine of the present invention having the above-described structure can maximize the tub capacity in the laundry machine having the same cabinet shape since the tub can be separated from the vibrometer.

In the conventional washing machine, the tub is fixed to the inside of the cabinet by a spring or a damper, the drum is rotatably provided in the tub, the drive motor is provided on the back of the tub to rotate the drum. Therefore, in the conventional laundry machine, the vibration induced by the drum or the driving motor during the rotation of the drum was transmitted to the tub. That is, in the conventional washing machine, the vibration system was a tub, a drum, and a driving motor, and in order to prevent the cabinet from colliding with the tub (noise and vibration) during the vibration of the tub, a constant space must be formed between the tub and the cabinet.

However, the above-described washing machine of the present invention does not need to form a space between the tub and the cabinet because the tub can be excluded from the vibration system, so that the capacity of the tub can be maximized even when the appearance of the same cabinet has the same size.

Meanwhile, as described above, the laundry machine 100 of the present invention includes an air supply device 160 for processing (drying, cooling clothes after drying, removing dust, etc.) of clothes in the receiving space.

The air supply device 160 is provided on the top of the tub 120, as shown in Figure 3 and circulates the air inside the tub 120 during the air supply stroke of the washing apparatus 100.

The air supply stroke refers to a stroke for processing clothes by supplying heated air or unheated air into the tub, and a drying stroke is a representative example. When the heated air is supplied into the tub, the air supply device 160 is a tub. The internal air is circulated and heated at the same time.

That is, the air supply device 160 may be configured to draw out the air inside the tub 120 and heat it to flow back into the tub 120.

The air supply device 160 is an air recovery port 161 formed on the circumferential surface of the tub 120, air flow means 163 for moving the air inside the tub to the air recovery port 161 is a typical example ), A duct 164 for guiding the air introduced into the air recovery port 161 by the fan 163 to the front of the tub, a heater (not shown) for heating the air flowing through the duct, and the heated air. It may include an air discharge port 165 to guide the inside of the tub 120.

Here, the air recovery port 161 is formed through the tub 120 circumferential surface (the front side, the rear surface, the side of the side connecting the front and rear surfaces forming the outer peripheral surface). Meanwhile, as illustrated in FIGS. 6 and 7, the air return hole 161 passes through the circumferential surface of the tub to communicate with the communication hole 128 provided at a position spaced apart from the rotation center C of the drum by a predetermined distance L. It may be provided to be coupled to).

In addition, the communication hole 128 provided in the tub 120 is provided with a filter 170 for filtering foreign matter (lint, etc.) contained in the air discharged from the tub 120, the inside of the air recovery port 161 It is provided with a filter washing unit 190 (see Fig. 8) for cleaning the foreign matter remaining in the filter 170 is filtered by the filter.

6 to 8 illustrate a case in which the surface of the filter 170 is provided in the communication hole 128 of the tub so that the inner circumferential surface of the tub 120 is the same as the radius of curvature of the tub. Although illustrated, this is only an example, and thus, the filter 170 may be provided to be positioned inside the air recovery port 161.

The fan 163 is provided above the air recovery port 161. In accordance with the operation of the fan 163, the air inside the tub 120 is moved to the duct 164 side through the air recovery port. The air introduced into the duct 164 by the fan 163 is heated by a heater (not shown) and the heated air is supplied into the tub 120 through the air outlet 165 to dry the laundry.

On the other hand, the filter 170 for filtering the foreign matter contained in the air flowing into the air recovery port 161 in the air supply device 160 as described above is filtered by the filter for a long time to remove the foreign matter remaining in the filter It is preferable.

To this end, the laundry machine 100 of the present invention may further include a filter washing unit 190 of the type shown in FIG. 8.

The filter washing unit 190 is a foreign matter remaining in the filter 170 is introduced into the tub 120 through the drain 129 (see Fig. 6) provided to drain the wash water in the tub 120. It is a means for supplying the washing water to the filter 170 to be discharged to the outside of the washing apparatus.

That is, the filter washing unit 190 is preferably provided to spray the washing water from the top of the filter 170 into the tub 120 so that foreign matter remaining in the filter 170 flows into the tub.

To this end, the filter washing unit 190 may be provided in the air recovery port 161 and includes a nozzle 191 for spraying the washing water to the filter 170 and a washing water supply pipe 193 for supplying the washing water to the nozzle. have.

In this case, the washing water supply pipe 193 may be directly connected to a source of water supply provided at the outside of the washing apparatus, or may be provided to be connected to a supply hose 127 for supplying washing water to the tub. In the latter case, a valve (not shown) for selectively opening the supply hose 127 and the washing water supply pipe 193 may be provided at a connection portion of the supply hose 127 and the washing water supply pipe 193.

Hereinafter, the air supply administration of the laundry machine 100 having the above-described structure will be described.

The air supply administration means a stroke for supplying heated air or unheated air into the accommodation space to dry the clothes stored in the accommodation space, to cool the heated clothes, and to remove odors or dust. However, for convenience of explanation, the description will be made based on a process of processing clothes by supplying heating air (hot air) to an accommodation space provided with a tub and a drum.

Referring to FIG. 3, when the fan 163 rotates in the air supply stroke, the air inside the tub 120 is introduced into the duct 164 through the air return port 161 to be provided with a heater provided in the duct. Heated by

The heated air (hot air) is supplied into the tub 120 through the air outlet 165 and the hot air supplied into the tub 120 exchanges heat with the clothes stored in the drum 130 to absorb the moisture of the clothes. .

Hot air absorbing moisture from the clothing is discharged to the outside of the tub 120 through the air recovery port 161 connecting the tub 120 and the duct 164. In this process, the inner circumference of the tub 120, between the tub and the drum The space of the will function as a condensation duct to remove moisture from the hot air.

Tub 120 is the outer circumferential surface is in contact with the cold outside air, the space between the inner circumferential surface of the tub 120, the tub inner circumferential surface and the drum outer circumferential surface is lower than the temperature inside the drum 120 is supplied into the drum 120 is the clothes After absorbing moisture from the hot air discharged from the drum 120 is condensed in the tub inner peripheral surface 120 while moving to the air recovery port 161, the air (condensed water) condensed in the tub inner peripheral surface is provided in the tub 120 It is discharged to the outside of the tub through the drain (129, see Figure 6).

Therefore, since the space between the inner circumferential surface of the tub, the inner circumferential surface of the tub and the outer circumferential surface of the tub functions as a condensation duct, the washing apparatus 100 has a need for a cooling water supply means for cooling the hot air and a separate condensation duct.

Hot air from which moisture is removed through the space between the inner circumferential surface of the tub and the outer circumferential surface of the tub is introduced into the duct 164 through the air return port 161 and reheated, and into the tub 120 through the air discharge port 165. The clothes stored in the drum 130 are dried by being supplied and repeating the above-described process.

The hot air supplied into the tub 120 through the air discharge port 165 may contain foreign substances such as lint in the process of removing moisture from the garment. The laundry machine 100 of the present invention includes a communication hole 128 (see FIG. 6). Alternatively, since the filter 170 is provided in the air recovery port 161, foreign matters are prevented from flowing into the air supply device 160.

Meanwhile, foreign matters removed from the hot air are accumulated on one surface of the filter 170 facing the inside of the tub 120. If foreign matter remains on the filter 170, the amount of air introduced into the air return port 161 is reduced, thereby providing an air supply stroke. The efficiency (drying efficiency, etc.) of the will fall.

In order to prevent this, the laundry machine 100 of the present invention cleans the filter 170 through the filter washing unit 190 shown in FIG. 8.

The filter washing unit 190 is provided in the air recovery port 161 but located in the upper portion of the filter 170 includes a nozzle 191 for spraying the washing water toward the inside of the tub 120, so the tub 120 The foreign matter accumulated on one surface of the filter 170 facing the inlet is introduced into the tub 120 by the washing water and then discharged to the outside of the tub through the drain 129.

On the other hand, the process of cleaning the filter 170 using the above-described filter cleaner 190 is preferably performed while the fan 163 does not rotate.

When washing the filter by spraying the washing water on the filter, a problem may occur in which a water film is formed on the filter immediately after the filter is washed. As it is not discharged, the efficiency of clothing treatment through the air supply administration may be reduced.

Various attempts have been made, such as adjusting the size of the holes provided in the filter to remove the water film, but the above-mentioned attempts have no effect on the filter water film removal. On the other hand, the Applicant was able to confirm through the numerous experiments that the biggest cause of the water film is formed after the filter is washed because the fan rotates during the filter wash.

12 is data measuring the time the fan reaches the target RPM (about 170 to 180 RPM) according to the time when the operation of the fan is stopped when washing the filter by supplying the washing water to the filter. 12, it takes 77.5 seconds to remove the water film of the filter if the fan is not stopped during the cleaning of the filter. However, if the fan is restarted after about 23 seconds after stopping the operation of the filter, the target RPM is reached. You can see that it takes 25.3 seconds to complete.

As shown in FIG. 8, the moving direction of the washing water sprayed from the nozzle 191 is directed toward the inside of the tub 120. When the fan 163 rotates, the air inside the tub moves in the opposite direction to the moving direction of the washing water. As a result, the fan 163 discharging the air to the outside of the tub 120 was the main cause of the water film so that the washing water sprayed on the filter 170 does not fall freely into the tub and remains on the surface of the filter 170.

Therefore, the present invention is characterized in that the washing apparatus 100 is controlled so that the washing water is sprayed on the filter 170 after stopping the operation of the fan 163 to prevent the water film is formed on the filter 170.

The washing water sprayed into the filter 170 is introduced into the tub 120 through the communication hole 128 of the tub, and the communication hole 128 is predetermined from the center of rotation C of the drum as shown in FIG. 7. Since the water (L) is provided at a spaced apart position, the washing water flowing into the tub 120 moves to the drainage portion 129 along the inner circumferential surface of the tub 120 or the space between the drum 130 and the tub 120. Go to the drain 129 through.

Therefore, the laundry apparatus 100 of the present invention may prevent or minimize the clothing inside the drum 130 from being wetted by the washing water even when the filter 170 is washed through the filter washing unit 190.

In this case, since the temperature of the inner circumferential surface of the tub 120 is lowered by the washing water sprayed from the filter washing unit 190, the washing device 100 of the present invention has a condensation efficiency that proceeds in the space between the tub and the drum. Even higher effects can be expected.

Meanwhile, even when the fan 163 is not rotated when washing water is supplied to the filter 170 to remove foreign substances remaining in the filter 170, a water film may be formed on the surface of the filter, depending on the structure of the filter 170.

The filter 170 is generally provided in the form of a net having a plurality of holes. If the size of the hole is small, the surface tension of the water and the foreign matter in the filter are temporarily fixed to the filter by the wash water when the foreign matter is present in the nozzle 191. This is because the washing water sprayed from may block the hole of the filter 170 for a predetermined time and prevent the air from flowing into the air recovery port 161.

In order to solve this problem, the present invention not only sprays the washing water to the filter 170 after stopping the operation of the fan, but also rotates the drum 130 to wash the water film to prevent the water film from being formed on the surface of the filter 170. It is characterized by controlling the device 100.

When the drum 130 rotates during the cleaning of the filter 170, air flow (air flow) is generated inside the tub 120, and the air flow generated inside the tub filters the washing water remaining on the surface of the filter 170. This is because there is an effect to separate from.

Meanwhile, as described above, the communication hole 128 provided with the filter 170 may be provided at a position spaced apart from the rotation center C of the drum 120 by a predetermined distance L. In this case, the drum 130 may be provided. Silver is preferably controlled to rotate in the direction (F) in which the washing water sprayed from the nozzle 191 falls into the tub 120 (see FIG. 7).

This is to allow the washing water to move toward the inner circumferential surface of the tub 120 instead of the inner circumferential surface of the drum even when the washing water flowing into the tub 120 through the filter 170 falls on the surface of the drum 130.

Hereinafter, a control method of a washing apparatus equipped with an air supply stroke will be described with reference to FIG. 9.

Air supply stroke (S200) is a step of operating the fan 163 in the stroke for processing the clothes stored in the drum 130 by supplying hot air or unheated air into the tub 120 as described above (S210), the drum In the case of processing the clothes using the hot air to include a step of rotating may include a step (S220) for operating a heater (not shown).

The drum rotation step may be omitted, but if provided, it is possible to increase the efficiency of the air supply stroke (dry stroke, etc.).

When the drum rotation step is provided, the drum rotation step may proceed simultaneously with the step of operating the fan (S210), but may be provided separately from the step of operating the fan.

However, the step of operating the heater (S220) is preferably performed after the fan operation step (S210) is to prevent overheating of the heater.

On the other hand, the control method of the present invention is a step (S230) to determine whether the cleaning of the filter 170 is necessary after the start of the air supply stroke.

Determining whether or not cleaning of the filter 170 is necessary (S230) proceeds by detecting whether the amount of foreign matter remaining in the filter has reached a predetermined amount, but there are various methods of determining the amount of foreign matter remaining in the filter. It may be provided in the form.

For example, the step of determining whether the cleaning of the filter is necessary by sensing the amount of foreign matter remaining in the filter may be performed by detecting the rotation speed (RPM) of the fan 163 and the rotation speed of the fan.

When a small amount of foreign matter is present in the filter 170, the amount of air introduced into the duct 164 through the air return port 161 increases, and the amount of air introduced through the air return port 161 is the fan 163. The lower the amount of debris remaining in the filter, the lower the RPM of the fan, and the higher the amount of debris remaining in the filter (the less air flowing into the air intake), the higher the RPM of the fan. .

Therefore, the step of determining whether the cleaning of the filter is necessary (S230) may be provided to determine when the cleaning of the filter 170 is required when the RPM of the fan 170 reaches a predetermined RPM.

On the other hand, if it is determined whether the filter cleaning is necessary based on whether the RPM of the fan reaches the set RPM after the operation of the fan may cause the following problems.

As shown in FIG. 10, there may exist a section in which the RPM of the fan becomes abnormally high (when a water film is formed in the P-transient, Q1, Q2-filter) after the fan starts to rotate until the fan is stabilized. In this case, when the cleaning time of the filter is determined by the above-described method, a problem of washing the filter may occur even though the filter is not blocked.

Therefore, in the control method of the present invention, it is preferable that the step S230 of determining the filter washing time is performed based on the RPM change amount of the fan.

That is, the step (S230) of determining whether the filter cleaning is necessary may be performed to determine whether the RPM of the fan is increased by the set RPM (250 to 300 RPM) from the minimum fan RPM of the fan operation step (S210).

 On the other hand, if it is determined that cleaning of the filter is necessary, the control method of the present invention proceeds to step S240 of removing foreign matter remaining in the filter shown in FIG. 9.

Removing foreign substances remaining in the filter provided in the present invention (S240) is a step of stopping the operation of the fan (S241), by supplying the washing water to the filter 170 through the filter washing unit 190 (S242) Moving foreign matter remaining in the tub 120.

The step (S242) of supplying the washing water to the filter is performed after stopping the operation of the fan in order to prevent a water film from being formed on the filter and deteriorating the efficiency of the air supply stroke.

Furthermore, the step (S240) of removing the foreign matter remaining in the filter may further include the step (S243) of accelerating the drum 130 during the process of supplying the washing water to the filter (S242).

In the case of the present invention, in the initial stage of the air supply stroke (S200) to rotate the drum along the direction (F) in which the washing water falls inside the tub (rotate with the rotational speed of RPM1 in the R direction, RPM1 may be an example of 40 to 50 RPM) Since the step of starting the water) is formed in the filter 170 in the step (S242) of supplying the washing water to the filter, it can be easily removed by the air flow inside the tub according to the drum rotation.

Therefore, although the drum acceleration step S243 may be omitted, the drum acceleration step S243 rotates the drum at a higher rotational speed (RPM2) than the drum rotation step, so that the water film can be removed more quickly.

The drum rotation speed (RPM2) in the drum acceleration step (S243) may be an example of 95 to 105 RPM, but RPM2 is set to 100 RPM because the maximum rotational speed of the drum is not required for drum eccentricity detection (UB detection). Is preferred.

If the drum is rotated while the clothes are accommodated inside the drum, the drum may be eccentrically rotated by the weight of the garment, since 100 RPM is the maximum number of rotations in which eccentricity detection is unnecessary to prevent the eccentric rotation of the drum.

Meanwhile, in step S240 of removing the foreign matter remaining in the filter, it is determined whether the time T for supplying the washing water to the filter has reached the set time Ts2 (S244) and the time T for supplying the washing water to the filter. ) Is completed by stopping the supply of the washing water to the filter (S245) when the set time Ts2 is reached.

When the step (S240) of removing the foreign matter remaining in the filter is completed, operating the fan to circulate the air inside the tub (S250), decelerating the drum (RPM2 to RPM less than RPM2 (RPM1, etc.)) Step S260 is started simultaneously or sequentially.

Since the control method of the present invention determines whether the time set in the air supply stroke (S200) (S270) and then terminates the air supply stroke (S280).

End of the air supply stroke (S280) may be proceeded by stopping the operation of the heater, the operation of the fan, the rotation stop of the drum proceeds simultaneously or sequentially.

On the other hand, the control method of the present invention filter first washing step (S100) for washing the filter before the start of the air supply stroke (S200), filter second washing step (S300) for washing the filter after completion of the air supply stroke (S200). It may further include at least one of.

The filter first washing step S100 is provided to increase the efficiency of the air supply stroke S200 by removing foreign matter remaining in the filter before the start of the air supply stroke S200, and the filter second washing step S300. Is provided to prevent foreign matter remaining in the filter is fixed to the filter after the air supply stroke (S200) is completed.

If the air supply stroke (S200) does not proceed to the washing stroke, rinsing stroke, dehydration stroke, and so on independently, the fan 163 is generally not rotated, so the filter before the independent air supply stroke (S200) is first filtered. When the washing step (S100) is performed, the filter first washing step (S100) is a step (S130) of supplying the washing water to the filter, it is determined whether the time (T) of supplying the washing water to the filter has reached the set time (Ts1). It may be provided only to the step (S140) and the step (S150) for stopping the supply of washing water to the filter.

However, if the air supply stroke (S200) proceeds after the washing stroke, rinsing stroke, dehydration stroke, the filter first washing step (S100) is a step of determining whether the fan is in operation (S110), if the fan is in operation of the fan After stopping the operation (S120) it is preferable to proceed to the step of supplying the washing water to the filter (S130).

If the fan is in operation, but the filter washing step (S130) of the filter first cleaning step is in progress, the water film is formed on the filter by the fan operation step (S210) of the air supply stroke (S200) that follows after the filter first cleaning step (S100). Because it can be.

On the other hand, the above-described filter first washing step (S100) is preferably provided before the start of the air supply stroke (S200), but may proceed after the start of the air supply stroke (S200). In this case, determining whether the fan is in operation (S110) will be performed after operating the fan of the air supply stroke (S200) (S210), and cleaning the filter when the filter first washing step (S100) is finished. Determining whether or not is required (S230) will follow.

The filter second washing step (S300) is performed after the completion of the air supply stroke (S200) step of supplying the washing water to the filter (S310), the time (T) of supplying the washing water to the filter reaches the set time (Ts3) In step S320, it may be determined whether or not the washing water is supplied to the filter (S330).

The filter washing time Ts1 of the filter first washing step, the filter washing time Ts2 of the air supply stroke, and the filter washing time Ts3 of the second filter washing step may be provided in the same manner or differently. . However, Ts2 may be set larger than Ts1 or Ts3 because the amount of foreign matter remaining in the filter will be the most during the air supply stroke.

FIG. 10 relates to another embodiment of the method for controlling a laundry machine of the present invention, in which the present embodiment is distinguished from the control method of FIG. 9 to determine whether or not filter cleaning is required in the air supply stroke (S200). And an additional washing step (S240a) for additionally cleaning the filter when a predetermined time (t1) has elapsed after the step (S240) and the filter washing step (S240).

That is, in the control method of the washing apparatus according to the present embodiment, after the completion of the filter washing step (S240), it is determined whether the time set in the air supply stroke has elapsed (S270) and the time set in the air supply stroke has not elapsed. When the set time t1 elapses from the end of the filter washing step S240, the additional washing step S240a is performed.

The detailed process of the additional washing step (S240a) is the same as the filter washing step (S240) described above, a detailed description thereof will be omitted.

FIG. 11 relates to another embodiment of a washing machine control method of the present invention. The present embodiment is distinguished from the control method of FIG. 9 or FIG. 10 by determining whether the cleaning of the filter is necessary (S230). The filter washing step S240 of the stroke S200 may be repeated.

The present invention may be practiced in various forms and is not limited to the above-described embodiment. Accordingly, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

100: washing machine 110: cabinet 111: front panel
112: opening 113: door 114: left panel
115: right panel 116: rear panel 117: top panel
118: base 120: tub 121: front tub
122: rear tub 125: tubback wall
127: supply hose 128: communication hole 129: drain
130: drum 131: front drum 132: rear drum
133: lift 134: weight balancer 135: rotation axis
136: spider 137: center drum 140: bearing housing
141: drive motor 142: first extension portion 143: first weight
144: second extension 145: second weight 150: suspension unit
151: first suspension bracket 152: first spring damper 153: first damper
154: second suspension bracket 155: second spring damper 156: second damper
157: third spring damper 160: air supply device 161: air recovery port
163: fan 164: duct 165: air outlet
170: filter 190: filter cleaning unit 191: nozzle
193: washing water supply pipe

Claims (12)

In the control method of the laundry machine equipped with an air supply stroke for supplying heated air or unheated air to the clothes stored in the accommodation space, the air supply stroke
Operating a fan provided inside the duct forming a flow path through which the air in the accommodation space circulates and circulating the air in the accommodation space through the duct;
And removing the foreign matter remaining in the filter by spraying the washing water to the filter to remove the foreign matter from the air flowing into the duct after temporarily stopping the operation of the fan. . The method of claim 1,
Removing foreign matter remaining in the filter
The control method of the laundry machine, characterized in that proceeds when the amount of foreign matter remaining in the filter reaches a set amount. The method of claim 1,
Removing foreign matter remaining in the filter
The control method of the washing machine, characterized in that proceeds when the RPM of the fan increases by the set RPM from the minimum fan RPM of the step of operating the fan. The method of claim 3,
Removing foreign matter remaining in the filter
The control method of the washing machine, characterized in that proceeds when the RPM of the fan increases from 250 to 300 RPM from the minimum fan RPM of the step of operating the fan. The method of claim 1,
The first washing step of supplying the washing water to the filter before the start of the air supply stroke; control method of a laundry machine further comprising. The method of claim 1,
And a second washing step of supplying the washing water to the filter after the completion of the air supply stroke. 7. The method according to any one of claims 1 to 6,
The air supply stroke is rotatably provided in the accommodation space to rotate the drum in which the clothes are accommodated; wherein the drum in the drum rotation step
The control method of the washing apparatus, characterized in that rotated toward the falling direction of the washing water supplied to the filter into the accommodation space. The method of claim 7, wherein
The drum rotation step
Acceleration step of increasing the rotational speed of the drum during the process of removing the foreign matter remaining in the filter; control method of a laundry machine comprising a. A tub in which washing water is stored, a drum in which the clothes are stored, a duct forming a flow path through which air in the tub is circulated, and provided in the duct so that air in the tub is circulated through the duct. Fan and penetrates the circumferential surface of the tub, but is provided at a position spaced apart from the rotation center of the drum by a predetermined distance, the communication hole is connected to the duct, the filter is provided in the communication hole to remove foreign matter from the air moving to the duct In the control method of the laundry machine comprising a filter washing unit for supplying the washing water to the filter to remove foreign substances remaining in the filter,
Operating the fan to circulate air in the tub;
Stopping the operation of the fan;
Supplying the washing water to the filter through the filter washing unit to remove foreign substances remaining in the filter;
Operating the fan to resume the air circulation in the tub. 10. The method of claim 9,
Further comprising: a drum rotating step of rotating the drum,
The drum in the drum rotation step
The control method of the washing apparatus, characterized in that rotated along the falling direction of the washing water supplied to the filter and introduced into the tub. The method of claim 10,
The drum rotation step
Acceleration step of increasing the rotational speed of the drum during the process of removing the foreign matter remaining in the filter; control method of a laundry machine comprising a. 12. The method according to any one of claims 10 to 11,
Removing foreign matter remaining in the filter
The control method of the washing machine, characterized in that proceeds when the RPM of the fan increases by the set RPM from the minimum fan RPM in the step of operating the fan.

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