KR20070084929A - Washing machine - Google Patents

Abstract

A washing machine is provided to filter foreign substances discharged from a tub by installing a filter unit in a water discharge section or a water discharge hose of the tub. A washing machine includes a tub(60), a water discharge hose(92), and a filter unit. The tub includes a water discharge section. The water discharge hose is engaged with the water discharge section of the tub. The filter unit is installed in the water discharge hose or the water discharge section of the tub. The filter unit is located at an inlet of the water discharge hose through which washing water is introduced from the tub to the water discharge hose. The filter unit includes a filter net installed in the interior of the water discharge hose.

Description

Washing Machine

1 is a perspective view showing the appearance of a washing machine according to the prior art.

2 is a cross-sectional view showing a washing machine according to the prior art.

3 is a perspective view showing the appearance of a washing machine according to a first embodiment of the present invention.

4 is a cross-sectional view of the washing machine according to the first embodiment of the present invention.

5 is an enlarged view of a portion 'A' of FIG. 4.

6 is a view illustrating a main configuration of a washing machine according to a third embodiment of the present invention.

7 is a view showing a filter unit detachment process of the washing machine according to the third embodiment of the present invention.

8 is a view illustrating a main configuration of a washing machine according to a third embodiment of the present invention.

9 is a view showing a filter unit detachment process of the washing machine according to the third embodiment of the present invention.

<Explanation of symbols on main parts of the drawings>

50: cabinet 52: door

58: drain unit door 60: tub

60a: drain 70: drum

72: through hole 78: motor

79: lift 80: water supply

90: drainage device 92: drainage hose

94: drain pump 100: filter unit

112: filter net

The present invention relates to a washing machine, and more particularly, to a washing machine provided with a filter unit capable of catching a foreign substance discharged from the tub in a drain hose of the tub or a drain hose connected to the drain of the tub.

In general, a washing machine is a device for cleaning cloths by washing, rinsing, dehydrating, etc. to remove dirts on clothes, bedding, etc. (hereinafter, called pores) using water and detergent.

1 is a perspective view showing the appearance of a washing machine according to the prior art, Figure 2 is a cross-sectional view showing a washing machine according to the prior art.

The washing machine according to the related art as shown in FIGS. 1 and 2 forms an exterior of a washing machine and a cabinet 2 having a door 1 installed therein, and a tub fixed to the inside of the cabinet 2 to allow fresh water to be washed. (4), a drum (6) rotatably installed in the tub (4), a through hole (6a) is formed to allow the access of the wash water, and the fabric (m) can be accommodated therein, and the drum ( 6, a motor 8 for rotating, a water supply device 10 connected to the tub 4 to supply wash water into the tub 4, and a tub 4 connected to the tub 4 4) and a drainage device 12 for draining the washing water and a control panel 14 mounted with electrical components such as receiving an operation control of the washing machine or displaying a current operating state of the washing machine.

The door 1 is coupled through the cabinet 2 and the door hinge unit 20 to be opened and closed while being rotated in the front-rear direction of the cabinet 2.

The drum 6 is rotated together with the drum 6 during the rotation of the drum 6 so that the fabric m accommodated in the drum 6 can be lifted up and dropped inside the drum 6. A lift 5 is installed which lifts m).

The drainage device 12 includes a drain hose 12a having one end connected to the tub 4 and the other end disposed outside the cabinet 2 to guide the wash water dewatered in the tub 4 to the outside. And a drain pump 12b connected to the drain hose 12a and pumping the wash water desalted in the tub 4 to be drained through the drain hose 12a.

Looking at the operation of the washing machine according to the prior art configured as described above are as follows.

The tub 4 is supplied with the washing water in which detergent is dissolved or the washing water in which the detergent is not dissolved, and the drum 6 is rotated so that the fabric m accommodated in the drum 6 is lifted. To be washed or rinsed while lifting. At this time, foreign matters such as lint, coins, and pins, which are separated from the cloth m accommodated in the drum 6, remain in the tub 4 through the through holes 6a of the drum 6a.

As such, after the washing or rinsing of the cloth m is completed, the drainage pump 12b is driven and the contaminated washing water freshened in the tub 4 is pumped by the pumping force of the drainage pump 12b. Drain through 12a.

At this time, foreign substances such as lint, coins, and pins remaining in the tub 4 are also swept by the wash water drained from the tub 4 and flow into the drain hose 12a.

On the other hand, the washing machine according to the related art configured as described above may rotate the drum 6 at a high speed without supplying the washing water to the tub 4 so that the fabric m accommodated in the drum 6 may be centrifugally dehydrated. . At this time, the drain pump 12b is driven to drain the dehydrated water from the inside (m) of the drum (6).

However, in the washing machine according to the related art as described above, since the foreign matter remaining in the tub 4 is swept away from the tub 4 by the wash water and flows into the drain hose 12a, the drain hose 12a. Due to the foreign matter deposited in the drainage is not smooth, the problem of drainage time and energy waste occurs, in serious cases, the drain hose 12a can be blocked, there is a problem that can cause odor.

In addition, due to a sharp foreign matter such as a pin in the foreign matter drained with the wash water during the drainage, the drain hose 12a may be damaged, such as tearing, and the wash water leaks due to damage of the drain hose 12a, such as a short circuit. There is a problem that may cause other parts in the cabinet 2 to be broken.

In addition, there is a problem that foreign matter drained with the wash water when draining flows into the drain pump 12b through the drain hose 12a, causing the driving drain pump 12b to stop or break.

The present invention has been made in order to solve the above problems of the prior art, by installing a filter unit in the drain or the drain hose of the tub draining the wash water fresh water in the tub, foreign matter remaining in the tub to the drain hose It is an object of the present invention to provide a washing machine that can prevent the inflow of the source.

In another aspect, the present invention is to provide a washing machine in which the filter unit is installed but the filter unit can be attached and detached so that the filter unit can be cleaned and replaced.

Washing machine according to the present invention for solving the above problems is provided with a tub having a drain; A drain hose coupled to the drain of the tub; It characterized in that it comprises a filter unit installed in the drainage portion of the drain hose or tub.

The filter unit may be located at an inlet of the drain hose through which the wash water flows from the tub to the drain hose.

The filter unit is characterized in that it comprises a filter net installed inside the drain hose.

The filter unit is characterized in that it comprises a filter net that can be attached and detached through the filter entrance hole formed in the drain hose.

The filter unit is characterized in that it comprises a filter cover for opening and closing the filter entrance hole formed in the drain hose.

The filter unit is characterized in that it comprises a filter net handle provided in the filter net.

The filter net is characterized in that the ring-shaped rib is configured to be provided with a collecting space for collecting the foreign matter.

The cabinet forming the exterior of the washing machine is characterized in that the drainage unit door is provided to allow the drain hose side check inside the cabinet.

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

3 is a perspective view showing the appearance of a washing machine according to a first embodiment of the present invention, Figure 4 is a cross-sectional view of the washing machine according to a first embodiment of the present invention, Figure 5 is an enlarged portion 'A' of FIG. The figure shown.

3 and 5, the washing machine according to the first embodiment of the present invention is formed with an opening 51 through which the bag can enter and exit the cabinet 50 forming the exterior of the washing machine, and the cabinet 50 In front of the) is installed a door 52 that can open and close the opening 51 formed in the cabinet 50.

When the cabinet 50 is classified in detail, the cabinet 50 is installed on the base 53, which is a lower surface of the cabinet 50, and on an upper side of the base 53. A cabinet cover 55 forming a rear surface, a cabinet cover 55 installed at the front of the cabinet body 54, and an opening 51 of the cabinet 50 is formed and the door 52 is provided; It is configured to include a top cover 56 installed on the upper portion of the cabinet body 54.

On the outside of the cabinet 50 is a control panel 58 mounted with electrical components such as various buttons for controlling the operation of the washing machine and a display for displaying a current operation state of the washing machine.

The door 52 is a ring-shaped door frame 52a that can enter and exit the opening 51 formed in the cabinet 50, and is installed inside the open side of the door frame 52a to provide the cabinet 50. It is configured to include a door glass 52b provided to be transparent so that the inside of it can be seen.

The door 52 is opened and closed between the door 52 and the cabinet 50 so that the door 52 can open and close the opening 51 formed in the cabinet 50 in an opening and closing manner. Door hinge assembly 52c for hinge coupling thereto.

Between the door 52 and the cabinet 50, a part of the door 50 can be maintained when the door 52 closes the opening 51 formed in the cabinet 50. The door lock assembly 52d is installed on the other side of the door frame 52a and the other part is installed on the cabinet 50.

Meanwhile, the tub 60 is fixedly installed in the cabinet 50 to wash the water w.

The tub 60 may be buffered and supported by being connected through the cabinet 50, the spring 61, the damper 62, or the like.

The tub 60 is disposed to be inclined horizontally or nearly horizontally, and an opening 63 corresponding to the opening 51 formed in the cabinet 50 is formed on the front surface of the tub 60 so as to allow entry and exit of the fabric.

The tub 60 is provided with a drainage portion 60a having a drainage hole 60a 'formed at a lower portion thereof so that the wash water w desalted in the tub 60 can be drained.

The drainage portion 60a of the tub 60 may protrude in a tubular shape from the tub 60 toward the outside of the tub 60.

Between the openings 63 formed in the tub 60 and the openings 51 formed in the cabinet 50, the cloth m or the washing water w may be prevented from flowing out, and vibration or shock may be absorbed. In order to be able to shrink or relax, an elastic gasket 64 is installed.

The tub 60 is connected to the water supply device 80 for supplying the washing water (w) to the inside of the tub 60, the upper portion or the side portion, washing water (w) in the tub 60 in the lower portion Drainage device 90 for draining the outside is connected.

The water supply device 80 is a water supply valve 82 for intermittent water supply of the wash water (w) connected to the external hose and the water supply to guide the wash water (w) passed through the water supply valve 82 A hose 84 and a water supply bellows 86 connected to the tub 60 to allow the washing water w guided by the water supply hose 84 to be supplied to the tub 60.

The water supply hose 84 and the water supply bellows 86 supply the washing water w in which detergent is dissolved in the washing stroke, and the clean water w in which the detergent is not dissolved in the rinsing stroke. Installed inside the cabinet 50 is connected via a detergent container 78 for storing detergent.

One end of the drainage device 90 is connected to the drainage part 60a of the tub 60, and the other end of the drainage device 90 is located outside the cabinet 50 so that the wash water freshened in the tub 60 may be collected in the cabinet 50. Drain hose 92 which is guided to the outside of the), and the washing water connected to the drain hose 92 so that the fresh water in the tub 60 is pumped out of the cabinet 50 through the drain hose 92 It consists of a drain pump (94).

The drain hose 92 is called a drain bellow 92 'where the drainage part 94 is positioned so as to connect the drain 60a of the tub 60 and the drain pump 94 around the drain pump 94.

The drainage device 90 may be configured to be serviceable through a drainage unit door hole 57 formed at one side of the cabinet 50. The drainage unit door hole 57 of the cabinet 50 is provided with a drainage unit door 58 to facilitate opening and closing of the drainage unit door hole 57 of the cabinet 50.

Inside the tub 60, a drum 70 is rotatably disposed in which a cloth m can be accommodated for washing, rinsing, dehydration, drying, and the like.

The drum 70 is a cylinder disposed horizontally or inclined substantially horizontally, and has an opening 51 formed in the cabinet 50 and an opening formed in the tub 60 on the front surface thereof to allow entry and exit of the fabric m. An opening 71 corresponding to 63 is formed.

A plurality of through-holes 72 are formed on the circumferential surface and the rear surface of the drum 70 to allow the wash water w, which is freshly contained in the tub 60, to flow in and out.

The drum 70 is a motor 78 and a drive installed outside the rear of the tub 60 so that the drum 70 can be rotated by the electric force in a state that the drum 70 is rotatably supported inside the tub 60. It is connected via the shaft 78a.

Inside the drum 70, a cloth (m) accommodated inside the drum 70 is spun up when the drum 70 rotates, so that the drum (70) can be dropped by its own weight. A lift 79 is installed for lifting (m).

On the other hand, the washing machine according to the present invention, as shown in Figure 5, when the wash water in the tub 60 is introduced into the drain hose 92, such as seams, lint, coins, pins, etc. contained in the wash water The filter unit 100 for catching the foreign matter is further included.

The filter unit 100 may be installed in the drainage portion 60a of the tub 60 or the drainage hose 92. In the present embodiment, the filter unit 100 is connected to the drainage hose 92 with reference to FIGS. 4 to 6. It demonstrates only to be installed.

At this time, the filter unit 100 before the washing water freshwater in the tub 60 is introduced into the drain hose 92 or as soon as the washing water freshwater in the tub 60 flows into the drain hose 92. In order to catch the foreign substances discharged from the tub 60 together with the washing water, it is preferable that the washing water freshened in the tub 60 is positioned at an inlet portion introduced into the drain hose 52.

The filter unit 100 is installed to partition the drain hose 92 in the longitudinal direction of the drain hose 92 in the drain hose 92 so that the wash water passes and the foreign substances discharged together with the wash water. Includes a filter network 112 that prevents passage.

The filter net 112 forms a skeleton of the filter net 112 and an edge of the filter net frame 111 coupled with the drain hose 92, and a mesh provided inside the filter net frame 111 ( 113).

The filter mesh frame 111 has an edge that is coupled to the drain hose 92 and is located in the inner wall of the drain hose 92 and is formed in the filter fitting groove 92a opened in the thickness direction of the drain hose 92. By being fitted, it can be combined with the drain hose 92.

At this time, the filter net 112 is typically formed of a material having elasticity such as rubber, the drain hose 92, the filter fitting groove of the drain hose 92 by the elasticity of the drain hose 92 It may be inserted into the 92a or may be removed from the filter fitting groove 92a of the drain hose 92.

The washing machine according to the first embodiment of the present invention configured as described above may be performed in the order of a washing stroke for removing time of laundry, a rinsing stroke for rinsing the laundry with clean washing water, and a dehydration stroke for draining the laundry. Each of the above administrations may be selectively performed according to the selection of.

Looking at the washing stroke of the washing machine according to the first embodiment of the present invention as follows.

First, when the cloth (m) is introduced into the drum 70, the door 52 is closed, and the washing machine is operated by operating the control panel 58, the tub by the water supply device 70 The wash water w in which detergent is dissolved is supplied to the inside of the 60, and the lower part of the drum 70 is immersed in the wash water w in which the detergent fresh water in the tub 60 is dissolved.

Then, the cloth (m) accommodated inside the drum (70) is soaked in the washing water (w) in which detergent introduced through the through hole (72) of the drum (70) is dissolved.

In the above state, when the motor 78 is driven to rotate the drum 70, the cloth (m) accommodated in the drum 70 is caught in the side of the lift 79 When lifted by the upper portion of the drum 70 by the lift 78 falls by its own weight, the time of staining by the action of detergent and wash water is dropped.

At this time, the tub 60 has foreign matters such as seams, lint, coins, pins, etc. separated from the cloth (m) accommodated inside the drum 70 through the through hole 72 of the drum 70. 60) and remain.

After the washing stroke as described above is finished, the drain pump 94 is driven. Then, the contaminated wash water in the tub 60 flows into the drain hose 92 by the pumping force of the drain pump 94 and is guided by the drain hose 92 to the outside of the cabinet 50. To be drained.

As described above, the contaminated washing water in the tub 60 is drained, and foreign substances discharged together with the contaminated washing water in the tub 60 are caught by the filter net 112 of the filter unit 100 and the filter. It will remain in the network (112).

After the drainage of the contaminated wash water in the tub 60 is completed, the drain pump 94 is stopped.

Next, the rinsing stroke of the washing machine according to the present invention is carried out similarly to the washing stroke described above, except that clean washing water in which detergent is not dissolved is dispensed, and further description of the detailed operation is omitted, and the drum 70 It may be repeated several times so that the fabric (m) accommodated inside the rinse is sufficiently rinsed. Of course, once the rinsing stroke is performed once, the drain pump 94 is driven to drain the contaminated washing water in the tub 60 and the foreign substances discharged together with the contaminated washing water in the tub 60. It is caught by the unit 100.

Next, the dehydration stroke of the washing machine according to the present invention is a process for removing the water of the fabric (m) accommodated in the drum (70), washing or rinsing the drum (70) in the state in which washing water is not watered. By rotating at a higher speed than the stroke, the cloth (m) accommodated in the drum 70 is centrifugally dehydrated, and the water dewatered from the cloth (m) accommodated in the drum 70 is collected in the tub 60. After that it is drained by the drainage (90). In this case as well, when the drainage is made by the drainage device 90, foreign substances discharged together with the wash water from the tub 60 are caught by the filter unit 100.

On the other hand, after the drainage process by the drainage device 90 is performed several times as described above, the foreign matter caught in the filter network 112 of the filter unit 100 is gradually deposited, thereby to the filter unit 100 Deposited debris can clog drainage.

Therefore, the drain hose 92 is removed from the drain 60a of the tub 60, and the filter net 112 of the filter unit 100 in the drain hose 92 is removed from the drain hose 92. Inside, it is possible to remove the foreign matter deposited on the filter net 112 of the filter unit 100.

Insert the filter net 112 of the filter unit 100 from which the foreign matter is removed as described above to the drain hose 92, and then the drain hose 92 to which the filter net 112 of the filter unit 100 is fitted. When coupled to the drain portion 60a of the tub 60, the washing machine according to the present invention can normally perform the draining process.

6 is a view showing a main configuration of a washing machine according to a second embodiment of the present invention, 7 is a view showing a filter unit detachment process of the washing machine according to the second embodiment of the present invention.

In the washing machine according to the second embodiment of the present invention as shown in FIGS. 6 and 7, the filter unit 170 is installed in the drain hose 160 connected to the drain hole 151 of the tub 150. It is installed to be detachable to the drain hose 160 so that the cleaning of the 170 or the filter unit 170 can be replaced.

That is, a filter entrance hole 161 is formed at one side of the drain hose 160 so that the filter unit 170 can be inserted or removed.

In the filter access hole 161 formed in the drain hose 160, a drainage unit door hole 152a is formed in a cabinet 152 forming the exterior of the washing machine, and a drainage unidoor hole 152a of the cabinet 152 is formed. When the drainage unit door 154 is installed to be opened and closed, the filter unit 170 may be positioned to be detachably attached to the drainage hose 160 through the drainage unit door hole 152a of the cabinet 152. Do.

The filter entrance hole 161 formed in the drain hose 160 may be provided with a filter cover 162 for opening and closing the filter entrance hole 161 of the drain hose 160.

The filter cover 162 may be pressed into the filter access hole 161 of the drain hose 160 by the elastic force or may be removed from the filter access hole 161 of the drain hose 160. The same as, it may be made of a similar material.

In addition, the filter unit guide 164 into which the filter unit 170 may be fitted may be inserted into the drain hose 160 to guide the detachment of the filter unit 170 and to support the filter unit 170. ) Is provided.

The filter unit guide 164 may be implemented in the form of a groove which is opened in the thickness direction of the drain hose 160 on the inner wall of the drain hose 160.

The filter unit 170 forms a skeleton of the filter unit 170 and an edge thereof is fitted with a filter net frame 172 which is fitted to the filter unit guide 164 provided in the drain hose 160, and the filter. It is made of a mesh 174 provided inside the mesh frame 172.

Meanwhile, the washing machine according to the second embodiment of the present invention is similar to the first embodiment of the present invention except for the above-described configuration, and thus, further detailed description thereof will be omitted.

A detachment process of the filter unit 170 of the washing machine according to the second embodiment of the present invention configured as described above will be described in detail below.

In a state where the filter unit 170 is installed in the drain hose 160, the drain unit door 154 is opened to open the drain unit door hole 152a of the cabinet 152.

Then, the hand is inserted into the cabinet 152 through the drainage unit door hole 152a of the cabinet 152 to remove the filter cover 162 from the filter entry hole 161 of the drain hose 160. It removes and the filter entrance hole 161 of the drain hose 160 is opened.

When the filter access hole 161 of the drain hose 160 is opened as described above, the filter unit located inside the drain hose 160 through the filter access hole 161 of the open drain hose 160 ( When 170 is taken out, the removal operation of the filter unit 170 is completed.

After the filter unit 170 is removed from the drain hose 160 as described above, the foreign matter deposited on the stripped filter unit 170 is removed to clean the filter unit 170 or the foreign matter is deposited. Discard the filter unit 170 and replace with a new filter unit 170.

The cleaned filter unit 170 or the newly replaced filter unit 170 is inserted into the cabinet 152 through the door unit hole 152a of the opened cabinet 152, and then the drain hose ( It may be mounted in the drain hose 160 through the filter access hole 161 of the 160.

After the filter unit 170 is mounted on the drain hose 160 again as described above, the filter cover 162 is installed in the filter access hole 161 of the drain hose 160 to install the filter hose 160. When the filter access hole 161 of the filter cover 161 is covered and the drainage unit door 154 covers the drainage unit door hole 152a of the cabinet 152, the detachment operation of the filter unit 170 is completed.

8 is a view showing a main configuration of a washing machine according to a third embodiment of the present invention, Figure 9 is a view showing a filter unit detachment process of the washing machine according to a third embodiment of the present invention.

In the washing machine according to the present invention as shown in FIGS. 8 and 9, a filter entrance hole 211 is formed in the drain hose 210 connected to the drain hole 201 of the tub 200, and the drain hose 210 of the washing machine according to the present invention. The filter cover 212 is installed to be opened and closed in the filter access hole 211, and a filter guide 214 in which the filter unit 220 is detachable is provided inside the drain hose 210.

The filter entrance hole 211 formed in the drain hose 210 has a drainage unit door hole 202a formed in the cabinet 202 forming the exterior of the washing machine, and the drainage unit door hole 202a of the cabinet 202. In the case where the drainage unit door 204 is installed to be opened and closed, the filter unit 220 is positioned to be detachably attached to the drain hose 210 through the drainage unit door hole 202a of the cabinet 202. desirable.

The filter cover 212 is formed of a material having an elastic force, such as rubber or plastic, is pressed into the filter access hole 211 of the drain hose 210 or from the filter access hole 211 of the drain hose 210. It may be provided to easily fall out.

The filter unit 220 is provided with a filter net frame 222 whose edge is fitted to the filter guide 214 and the inside of the filter net frame 222 to pass the wash water and catch the foreign matter. It consists of a mesh 224 and a ring-shaped rib 226 integrally provided with the filter mesh frame 222 so as to secure a collecting space in which foreign matters caught on the filter unit 220 can be collected.

In addition, the filter unit 220 may further include a filter net handle 228 to easily hold the filter unit 220.

The filter mesh handle 228 may be provided integrally with the filter mesh frame 222, and at this time, when the filter unit 220 is installed in the drain hose 210, the filter hose 220 may be disposed in the drain hose 210. It may be provided to protrude to the outside of the drain hose 210 through the filter entrance hole 211.

In addition, the filter mesh handle 228 is integrally formed with the filter cover 212 or coupled to be integrated with the filter cover 212, so that an operator who detaches the filter unit 220 may remove the filter cover 212. The filter cover 212 may be attached to and detached from the filter access hole 211 of the drain hose 210 at the same time as the filter unit 220 is attached and detached.

Meanwhile, the washing machine according to the third embodiment of the present invention is similar to the first embodiment of the present invention except for the above-described configuration, and thus, further detailed description thereof will be omitted.

A detachment process of the filter unit 130 of the washing machine according to the third embodiment of the present invention configured as described above will be described in detail below.

With the filter unit 220 installed in the drain hose 210, the drain unit door 204 is opened to open the drain unit door hole 202a of the cabinet 202.

Then, a hand is inserted into the cabinet 202 through the drainage unit door hole 202a of the cabinet 202 to pull the filter mesh handle 228.

Then, the filter cover 212 is removed from the filter entrance hole 211 of the drain hose 210 and the filter entrance hole 211 of the drain hose 210 is opened and at the same time, By exiting the filter unit 220 located inside the drain hose 210 through the filter entrance hole 211, the removal operation of the filter unit 220 is completed.

After the filter unit 220 is removed from the drain hose 210 as described above, the foreign matter deposited on the removed filter unit 220 is removed to clean the filter unit 220 or the foreign matter is deposited. Discard the filter unit 220 and replace with a new filter unit 220.

The cleaned filter unit 220 or the newly replaced filter unit 220 is inserted into the cabinet 202 through the door unit hole 202a of the opened cabinet 202, and then the drain hose ( It is inserted into the drain hose 210 through the filter access hole 211 of the 210. At this time, the filter unit 220 is installed inside the drain hose 210 as well as the filter unit 220 is removed. At the same time, the filter cover 212 has a filter access hole of the drain hose 210. By attaching 211, the detachment operation of the filter unit 220 is completed.

The washing machine according to the present invention configured and operated as described above has a filter unit installed in the drainage part or the drain hose of the tub, so that the foreign matter discharged from the tub may be caught by the filter unit, so that the foreign matter in the drain hose Since deposition can be prevented, drainage time and energy can be saved even after a long time use of the washing machine, and clogging and odor generation of the drain hose can be prevented.

In addition, the washing machine according to the present invention has an advantage that the burnout of the drainage pump due to the foreign matter can be prevented because there is no fear that the foreign matter discharged from the tub does not enter the drainage pump.

In addition, in the washing machine according to the present invention, the drain hose is not damaged by sharp foreign substances such as pins among the foreign substances drained together with the wash water during drainage, and therefore, the wash water leaks due to the damage of the drain hose, such as a short circuit. There is an advantage that there is no fear that other parts are broken.

In addition, the washing machine according to the present invention can prevent the foreign substance discharged from the tub to be introduced into the drain hose by the filter unit is located at the inlet of the drain hose in which the wash water flows from the tub to the drain hose. There is an advantage to that.

In addition, the washing machine according to the present invention has the advantage that the filter unit is provided so that the filter access hole formed in the drain hose can be mounted in the drain hose or removed from the drain hose, it is possible to replace and clean the filter unit. .

In addition, the washing machine according to the present invention is provided so that the filter unit is detachable from the filter entry hole formed in the drain hose, and the filter entry hole of the drain hose can be opened and closed by the filter cover, the filter entry and exit of the drain hose When the hole is covered by the filter cover, there is an advantage that the filter entrance hole of the drain hose can be sealed.

In addition, the washing machine according to the present invention has an advantage that the filter unit can be easily attached to and detached from the filter unit so as to easily hold the filter unit.

In addition, the washing machine according to the present invention is provided so that the filter unit has a collecting space for collecting the foreign matter discharged from the tub, the foreign matter collected in the filter unit during the removal of the filter unit from the drain hose is The inside of the drain hose or the cabinet, the hand of the person who is removing the filter unit, etc., there is an advantage that can be prevented from polluting the surrounding.

In addition, the washing machine according to the present invention does not need to disassemble the washing machine for attaching and detaching the filter unit because a drainage unit door is provided at one side of the cabinet forming the exterior of the washing machine so that the drain hose side can be inspected inside the cabinet. There is an advantage that the maintainability can be maximized.

Claims (8)

Tub having a drain; A drain hose coupled to the drain of the tub; Washing machine comprising a filter unit installed in the drain of the drain hose or tub. The method according to claim 1, The filter unit is a washing machine, characterized in that located in the inlet of the drain hose in which the wash water flows from the tub to the drain hose. The method according to claim 1, The filter unit is a washing machine, characterized in that it comprises a filter net installed inside the drain hose. The method according to claim 1, The filter unit is a washing machine comprising a filter net that can be attached and detached through the filter entrance hole formed in the drain hose. The method according to claim 4, The filter unit washing machine, characterized in that it comprises a filter cover for opening and closing the filter entrance hole formed in the drain hose. The method according to any one of claims 3 to 5, The filter unit is a washing machine comprising a filter net handle provided in the filter net. The method according to any one of claims 3 to 5, The filter network is a washing machine, characterized in that the ring-shaped rib is configured to be provided with a collecting space for collecting the foreign matter. The method according to any one of claims 3 to 5, Washing machine, characterized in that the cabinet forming the appearance of the washing machine is provided with a drainage unit door to check the drain hose side inside the cabinet.

Images