KR20070090397A - Washing machine's filter - Google Patents

Abstract

A filter of a washing machine is provided to prevent the filter from being loosened caused by vibration of the washing machine or expansion by respectively forming an interference unit to the filter cap and a filter chamber, thereby capable of preventing water leakage and deterioration of the filtering. A filter of a washing machine comprises a filter mesh(150), a filter cap(160), and an interference unit. The filter mesh is installed in the filter chamber(113) to filter out the foreign material. The filter cap attaches or detaches an outlet of the filter formed at the filter chamber. The interference unit is respectively formed at the filter cap and the filter chamber and interferences when mounting or separating the filter cap. The interference unit is composed of uneven parts respectively formed at the filter cap and the filter chamber and meshed each other. The uneven parts are composed of a first tooth(172) and a second tooth(174). The first tooth is formed at the filter cap. The second tooth is formed at the filter chamber to be meshed with a first gear tooth unit.

Description

Washing Machine's Filter

1 is a partially cut away perspective view of a washing machine according to the prior art.

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

3 is a cross-sectional view showing a filter of a washing machine according to the prior art.

4 is a partially cut away perspective view of a washing machine according to the present invention.

5 is a side cross-sectional view of a washing machine according to the present invention.

6 is an exploded perspective view showing a filter of a washing machine according to the present invention.

7 is a cross-sectional view showing a filter of a washing machine according to the present invention.

8 is a cross-sectional view taken along the line A-A of FIG.

<Explanation of symbols on main parts of the drawings>

50: cabinet 52: door

60: Tub 64: Gasket

70: drum 72: through hole

74: lift 78: motor

80: water supply device 90: drainage device

92: drainage bellows tube 94: drainage hose

96: circulation hose 100: pump unit

110: pump casing 113: filter chamber

120: drain pump 130: circulation pump

140: filter 150: filter net

160: filter cap 170: interference generating means

172: first tooth 174: second tooth

The present invention relates to a filter of a washing machine, and more particularly, to a filter of a washing machine including an interference generating means which causes interference when the filter cap is completely attached to the pump or when the filter cap is about to be removed from the pump.

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 partially cut away perspective view of a washing machine according to the prior art, Figure 2 is a side cross-sectional view of the washing machine according to the prior art, Figure 3 is a cross-sectional view showing a filter of the washing machine according to the prior art.

The washing machine according to the related art as shown in FIGS. 1 to 3 is a cabinet 2 having an exterior of the washing machine and a door 1 installed therein, and a tub fixed to the inside of the cabinet 2 so that washing water may be fresh. (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 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. The pump 12b is connected to the drain hose 12a and pumps the wash water freshened in the tub 4 to be drained through the drain hose 12a.

The pump 12b is provided with a filter 12c for filtering foreign matter in the wash water drained through the drainage device 12, and detachable so that foreign matter caught in the filter 12c can be easily removed by the consumer. Is installed. In other words, the filter 12c is locked or released in a spiral rotation manner.

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 washing water in which detergent is dissolved or washing water in which no detergent is dissolved, and the drum 6 is rotated to wash or rinse the fabric m contained in the drum 6. do. At this time, foreign matters such as lint or the like, which are separated from the cloth m accommodated in the drum 6, remain in the tub 4 through the through hole 6a of the drum 6a.

After the washing or rinsing of the cloth m is completed as described above, the pump 12b is driven to drain the contaminated washing water that is fresh in the tub 4 through the drain hose 12a. At this time, foreign matter such as lint or the like remaining in the tub 4 is also swept away by the wash water drained from the tub 4 and flows into the drain hose 12a and is caught by the filter 12c.

Alternatively, the drum 6 is rotated at high speed without washing water to the tub 4 so that the fabric m accommodated in the drum 6 is centrifugally dehydrated. At this time, the pump 12b is driven to drain the dehydrated water from the cloth m accommodated in the drum 6.

However, the filter 12c of the washing machine according to the related art as described above, if the temperature of the washing water drained from the tub 4 is higher or lower than room temperature, the washing water drained from the tub 4 by the temperature of the washing water drained from the tub 4 There is a problem that can be decomposed by itself.

As described above, when the filter 12c is loosened even a little by itself, a gap is formed in which the foreign matter discharged from the tub 4 can pass through the filter 12c, and the foreign matter that has passed through the filter 12c. There is a problem that the pump 12b can be stopped or broken during operation.

In addition, since the filter 12c of the washing machine according to the related art as described above is located at the lower side of the cabinet 2 together with the pump 12a, a consumer falls down when the filter 12c is attached or detached. When detaching while viewing 12c), it is possible to check whether the filter 12c is completely locked or loosened, so that the detachable working posture of the filter 12c is inconvenient.

Alternatively, the consumer may lock or loosen the filter 12c with only a sense while holding the filter 12c in a sitting position instead of lying down when the filter 12c is attached or detached, in which case the filter ( After unfastening or locking 12c to some extent, the filter 12c takes a long time to be attached or detached by checking whether the filter 12c is properly locked or released, and the filter 12c is often not locked properly. There is a problem that foreign matter discharged from the tub 4 passes through the filter 12c.

The present invention has been made to solve the above problems of the prior art, provided with a filter cap and a filter chamber, respectively, is provided with interference generating means for causing interference when the filter cap is attached or when the filter cap is about to be removed. The present invention provides a filter of a washing machine which does not loosen itself from the pump by a temperature change or the like in a state where it is installed in the pump, and which can provide a detachable operation feeling of the filter cap when the filter cap is attached to or removed from the pump. There is a purpose.

The filter of the washing machine according to the present invention for solving the above problems is installed in the filter chamber and the filter net for trapping the foreign matter; A filter cap for attaching and detaching a filter entrance and exit formed in the filter chamber; It is provided in the filter cap and the filter chamber, respectively, characterized in that it comprises an interference generating means for causing interference when the mounting of the filter cap or the removal of the filter cap.

The filter net is characterized in that integrated with the filter cap.

The interference generating means is provided in the filter cap and the filter chamber, respectively, characterized in that the concave-convex portion which can be mutually matched.

The uneven part is characterized in that it is provided in multiple in the detachable direction of the filter cap.

The uneven part may include a first tooth provided in the filter cap and a second tooth provided in the filter chamber so as to engage with the first gear portion in a detachable direction of the filter cap.

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

Figure 4 is a partially cut away perspective view of the washing machine according to the invention, Figure 5 is a side cross-sectional view of the washing machine according to the invention, Figure 6 is an exploded perspective view showing a filter of the washing machine according to the present invention, Figure 7 is the present invention 8 is a cross-sectional view illustrating a filter of a washing machine, and FIG. 8 is a cross-sectional view taken along line AA of FIG. 7.

 4 to 8 is a washing machine according to the present invention is formed on the front of the cabinet 50 that forms the exterior of the washing machine can enter and exit the port opening and exit 51 is formed, the front of the cabinet 50 A door 52 capable of opening and closing the cloth entrance and exit 51 formed in the cabinet 50 is installed.

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 having a rear surface, a cabinet cover 55 installed at the front of the cabinet body 54 and having a filter inlet and outlet 51 of the cabinet 50, and provided with the door 52; It is configured to include a top cover 56 installed on 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 provided with a ring-shaped door frame 52a that can enter and exit the filter entrance and exit 51 formed in the cabinet 50, and is installed inside the door frame 52a to be opened. It is configured to include a door glass 52b provided to be transparent so that the inside of the).

Between the door 52 and the cabinet 50, the door 52 is detached from the cabinet 50 so that the door 52 can be attached and detached from the door opening 51 formed in the cabinet 50. Door hinge assembly 52c for hinge coupling thereto.

Between the door 52 and the cabinet 50, a part of the door 52 may be maintained when the door 52 closes the filter entrance 51 formed in the cabinet 50. A 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 close to the horizontal, and is formed in the front and rear doors 63 corresponding to the gun entrance and exit 51 formed in the cabinet 50 to the front of the gun.

The tub 60 is provided with a drainage hole 60a having a drainage hole 60a 'formed at a lower portion thereof to drain the wash water w that is freshly watered in the tub 60.

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

Between the cloth entrance and exit 63 formed in the tub 60 and the gun entrance and exit 51 formed in the cabinet 50, the cloth (m) or the washing water (w) is prevented from flowing out, and the vibration or impact is prevented. In order to absorb the water, an elastic gasket 64 capable of contracting or relaxing is installed.

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 horizontally disposed or inclined to be close to the horizontal, the filter inlet 51 formed in the cabinet 50 on the front so that the entrance (m) of the filter (m) and the filter formed in the tub (60). A portal entrance 71 corresponding to the entrance 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).

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 intermitting the water supply of the washing 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.

The drainage device 90 drains the bellows pipe 92 connected to the drain port 60a of the tub 60 so that the wash water in the tub 60 and the wash water drained into the drain bellows pipe 92. A drain hose 94 for guiding the cabinet 50 outside, a circulation hose 96 for guiding the washing water drained by the drain bellows tube 92 into the drum 70, and the drain bellows pipe ( And a pump unit 100 for pumping the wash water drained into the drain hose 92 or the circulation hose 96.

The pump unit 100 is a pump casing 110 forming the appearance of the pump unit 100 and the drainage generating a pumping force so that the wash water in the tub 60 can be drained through the drain hose 94 Pump 120 and the circulation pump 130 for generating a pumping force to circulate the washing water in the tub 60 into the drum 70 through the circulation hose 96, and the pump unit 100 It is configured to include a filter 140 for catching the foreign matter to be introduced.

The pump casing 110 includes a drain pump chamber 111 connected to the drain pump 120, a circulation pump chamber 112 connected to the circulation pump 130, the circulation pump chamber 112 and a drain pump chamber 111. ) And a filter chamber 113 in which the filter 140 is installed.

The drain pump chamber 111 is provided with a first pump casing outlet (not shown) connected to the drain hose 94 so that the washing water introduced into the pump casing 110 may be discharged to the drain hose 94.

A second pump casing outlet 115 connected to the circulation hose 96 is formed in the circulation pump chamber 112 so that the washing water introduced into the pump casing 110 may be discharged to the circulation hose 96.

The drain pump chamber 111 and the circulation pump chamber 112 are disposed to be spaced apart from the filter chamber 113.

The filter chamber 113 is provided with a pump casing inlet (not shown) connected to the drainage bellows pipe 92 so that the washing water in the tub 60 may be introduced.

In addition, the filter chamber 113 is provided with a filter entrance 117 to allow the filter 140 to enter and exit for the purpose of cleaning and replacing the filter 140.

The inner wall of the filter entrance 117 is provided with a screw portion 117A so that the filter 140 can be screwed.

The drain pump 120 may include a drain pump impeller (not shown) capable of flowing the washing water in the pump casing 110 to the first pump casing outlet 114 and a rotation of the drain pump impeller. It consists of a pump motor (not shown).

The drain pump impeller may be rotatably installed in the drain pump chamber 111 of the pump casing 110, and the drain pump motor may be located outside the pump casing 110 to be connected to the drain pump impeller through a rotating shaft. .

 The circulation pump 130 is composed of a circulation pump impeller and a circulation pump motor similarly to the drain pump 120.

The filter 140 is located in the filter chamber 113 of the pump casing 110 and discharges foreign substances in the wash water that are drained to the drain pump 120 or the circulation pump 130 through the pump casing 110. Filter net 150 to be hung, and the filter net 150 through the filter inlet 117 of the pump casing 110 for the purpose of replacement and cleaning of the filter net 150, the pump casing 110 ) Or a filter cap 160 for attaching or detaching the filter inlet 117 of the pump casing 110 so that the filter inlet 117 of the pump casing 110 can be sealed.

The filter network 150 is installed to partition the filter chamber 113 and the drain pump chamber 111 of the pump casing 110, and the wash water passes through the pump structure provided with a mesh structure so that foreign matters can be caught. 152 and the circulating pump chamber mesh portion 154 which is installed to partition the filter chamber 113 and the circulation pump chamber 112 of the pump casing 110 and has a mesh structure so that washing water passes and foreign substances are caught. )

The filter net 150 may be stored in or withdrawn from the filter chamber 113 of the pump casing 110 by the filter cap 160 while the filter cap 160 is attached to or detached from the pump casing 110. It is coupled integrally with the filter cap 160 so as to be coupled to the filter cap 160 to be rotated relative to the filter cap 160.

The filter cap 160 has a stopper 162 detachably fastened to the filter inlet 113 of the pump casing 110 and the stopper 162 to easily hold the filter cap 160. It may be made of a handle portion 164 protruding from the.

Here, the stopper 162 is formed on the main body 162A and the outer circumference of the main body 162A formed integrally with the handle 164 and the filter inlet 113 of the pump casing 110. It consists of a threaded portion 162B that can be mated with the threaded portion 117A of the pump casing 110 to be screwed.

The main body portion 162A is a disk-shaped member that is shieldably inserted into the filter inlet and outlet 113 of the pump casing 110 and is coupled to the filter net 150.

The screw portion 162B is a tubular member formed along the outer circumference of the main body portion 162A, and the front portion of the screw portion 162B protrudes further forward than the front surface of the main body portion 162A.

The handle portion 164 may be provided with a straight projection structure formed to protrude forward from the front of the main body portion 162A.

The handle portion 164 may be formed with a concave-convex 164A for preventing slipping so as to easily hold the handle portion 164.

Meanwhile, the filter 140 is provided to correspond to each other in the filter cap 160 and the filter chamber 113 of the pump casing 110, and the filter cap 160 is provided in the filter chamber of the pump casing 110. Interference generating means 170 that causes mutual interference at the moment of completion of mounting at 113 or at the initial instant of removal of the filter cap 160 from the filter chamber 113 of the pump casing 110.

The interference generating means 170 may be formed in the filter cap 160 and the filter chamber 113 of the pump casing 110, respectively.

That is, the uneven parts 172 and 174 are positioned above the threaded portion 162B of the filter cap 160 to protrude from the filter cap 160 and the pump casing 110. The first tooth 172 is provided in an upper portion of the inner wall of the filter chamber 113 in a detachable direction of the filter cap 160 at the moment of completion of mounting the filter cap 160 or at the initial removal of the filter cap 160. ) And a second tooth 174 which may cause interference.

The uneven parts 172 and 174 may be provided in a plurality of first teeth 172 in a detachable direction of the filter cap 160 to be provided in multiple in a detachable direction of the filter cap 160. In addition, the second tooth 174 may be implemented in a structure provided with a plurality of detachable direction of the filter cap 160.

The first and second teeth 172 and 174 may be implemented in various shapes such as a triangular cross section, a square cross section, a semi-circular cross section, and the like according to the interference generation degree tuning of the interference generating means 170, respectively. It can also be variously implemented.

Looking at the filter action of the washing machine according to an embodiment of the present invention configured as described above in detail as follows.

When the drain pump 120 is driven while the filter 140 is mounted in the filter chamber 113 of the pump casing 110, the drain pump impeller 122 of the drain pump 120 is connected to the drain pump. Rotated by the motor 124.

Then, the washing water in the tub 60 is rotated through the pump casing inlet 116 of the drain bellows tube 92 and the pump casing 110 by the rotational force of the drain pump impeller 122. It flows into the filter chamber 113.

At this time, when the wash water in the tub 60 is introduced into the filter chamber 113 of the pump casing 110, foreign matters such as seams, lint, etc. in the tub 60 is swept into the wash water and the pump casing 110 together. In the filter chamber 113).

As described above, the washing water introduced into the filter chamber 113 of the pump casing 110 is drained by the drain pump chamber mesh part 152 of the filter 140 by the rotational force of the drain pump impeller 122 of the drain pump 120. ) Flowing through the drain pump chamber 111, the wash water flowing into the drain pump chamber 111 is discharged to the drain hose 94, the wash water discharged to the drain hose 94 is the drainage The hose 94 is drained out of the cabinet 50.

In addition, foreign substances such as seams, lint, and the like introduced into the filter chamber 113 of the pump casing 110 are transferred from the filter chamber 113 of the pump casing 110 to the drain pump chamber 111 of the pump casing 110. It is swept by the flowing wash water and directed to the drain pump chamber 111 of the pump casing 110, and is caught by the drain pump chamber mesh part 152 of the filter 140 to the drain pump chamber 111 of the pump casing 110. Can't flow in.

In addition, when the circulation pump 130 is driven while the filter 140 is mounted in the filter chamber 113 of the pump casing 110, the circulation pump is similar to the drainage process by the drain pump 120 described above. Due to the pumping force of 130, the washing water in the tub 60 is in the order of the drainage bellows pipe 92, the filter chamber 113 of the pump casing 110, and the pump casing 110. It is circulated through the pump chamber 112 and the circulation hose 96 into the tub 60.

At the same time, foreign substances such as seams, lint, etc. in the tub 60 are swept into the washing water by the pumping force of the circulation pump 130 and flowed into the filter chamber 113 of the pump casing 110, and then the filter ( It is caught by the circulation pump room mesh part 154 of 140.

Therefore, as described above, foreign matters such as seams, lint, or the like may be prevented from being deposited or entangled in the pump casing 110, the drain pump 120, and the circulation pump 130 by the filter 140. .

However, as the drainage process by the drainage pump 120 or the circulation process by the circulation pump 130 is performed several times, foreign substances such as seams and lint, which are caught by the filter 140, gradually increase, and the filter Foreign matters such as seams, lint, etc. caught in the 140 interferes with the flow of the wash water, causing the drainage performance by the drainage pump 120 or the circulation performance by the circulation pump 130 to decrease or cause clogging. Can be.

In addition, the filter network 150 of the filter 140 is damaged by foreign matters such as seams, lint, etc. caught on the filter 140, so that the filter 140 cannot perform the filtering function normally.

Therefore, when the washing machine is not in use, a cleaning operation for removing foreign matters such as seams, lint, etc., caught in the filter net 150 of the filter 140 is sometimes performed, or the filter net 150 of the filter 140 is removed. It is desirable to carry out the work of replacement.

When the detachment process of the filter 140 for cleaning or replacing the filter network 150 of the filter 140 will be described in detail.

First, in order to clean or replace the filter net 150 of the filter 140, the filter cap 160 of the filter 140 blocking the filter inlet 116 of the pump casing 110 may be connected to the pump casing 110. Must be solved from

Accordingly, the filter cap 160 is rotated in the direction in which the filter cap 160 is removed from the pump casing 110 by holding the handle 164 of the filter cap 160.

At this time, when the filter cap 160 is to be removed in the removal direction of the filter cap 160, a slight resistance is caused by interference friction between the first and second teeth 172 and 174 of the interference generating means 170. When the filter cap 160 is rotated to some extent in the removal direction of the filter cap 160, the interference between the first and second teeth 172 and 174 of the interference generating means 170 is released. The resistance by the interference generating means 170 is eliminated.

In addition, the “druff” distance caused by the interference friction between the first and second teeth 172 and 174 of the interference generating means 170 is generated after the friction noise disappears.

When the filter cap 160 is removed when the resistance and friction noise is generated by the interference generating means 170 and then disappears, an operator who removes the filter cap 160 removes the filter cap 160 normally. Feeling that is being, that is, given the removal operation feeling of the filter cap 160 can be improved workability.

Next, after the interference between the first and second teeth 172 and 174 of the interference generating means 170 is released, if the filter cap 160 continues to rotate in the removal direction of the filter cap 160, The filter inlet 116 of the pump casing 110 is opened by disengaging the filter cap 160 from the pump casing 110 while releasing the screw between the filter cap 160 and the pump casing 110. do.

At the same time, the filter net 150 integrally coupled with the filter cap 160 is drawn out from the filter chamber 113 of the pump casing 110 together with the filter cap 160.

After the filter 140 is withdrawn from the pump casing 110, the filter net 150 of the filter 140 is removed by removing foreign substances such as seams, lint, etc. caught in the filter net 150 of the filter 140. ) Or replace the filter net 150 of the filter 140 with a new one.

When the cleaning or replacement of the filter net 150 of the filter 140 is completed, the filter net 150 of the filter 140 is stored in the filter chamber 113 of the pump casing 110 again and the filter cap 160 is replaced. ) To mount the filter 140 to block the filter inlet 117 of the pump casing 110.

That is, first, the filter network 150 of the filter 140 is slightly inserted into the filter chamber 113 of the pump casing 110 through the filter inlet 116 of the pump casing 110, and the filter 140. The threaded portion 162B of the filter cap 160 of the filter cap and the threaded portion 117A of the filter inlet 117 of the pump casing 110 are aligned with each other, and then the filter is mounted in the mounting direction of the filter cap 160. Rotate cap 160.

Then, the filter cap 160 is screwed into the filter inlet 117 of the pump casing 110 and the filter cap 160 and the filter net 150 are inserted into the pump casing 110.

At this time, since the filter net 150 is coupled to the filter cap 160 so as to be relatively rotatable, the filter net 150 is not rotated together with the filter cap 160 but is only inserted into the pump casing 110.

When the filter 140 is almost mounted on the pump casing 110 again as described above, the first and second teeth 172 and 174 of the interference generating means 160 may cause mutual interference, thereby causing slight resistance. And by causing the friction noise, the operator is given the feeling that the filter 140 is normally mounted, that is, the mounting operation feeling of the filter 140, the operator needs to check whether the installation of the filter 140 visually Disappears.

On the other hand, after the filter 140 is mounted on the pump casing 110 as described above, the vibration of the washing machine due to the interference between the first and second teeth 172, 174 of the interference generating means 170 The phenomenon that the filter 140 itself loosens due to temperature change or the like can be prevented in advance.

As described above, the filter of the washing machine according to the present invention has been described with reference to the illustrated drawings, but the present invention is not limited to the above embodiments and drawings, and various modifications are possible by those skilled in the art within the scope of the technical idea of the present invention. Of course.

The filter of the washing machine according to the present invention configured and operated as described above is provided in the filter cap and the filter chamber, respectively, and is provided with interference generating means for causing interference when the filter cap is installed or when the filter cap is to be removed. Even if the filter cap is subjected to external force in the detachment direction of the filter cap due to expansion due to temperature change or vibration of the washing machine in the state in which the filter is mounted in the filter chamber, the phenomenon of self-releasing by the interference of the interference generating means is not observed. It can be prevented, and thereby there is an advantage that can be prevented, such as filtering degradation and leakage phenomenon due to the loosening of the filter.

In addition, the filter of the washing machine according to the present invention as described above is provided in the filter cap and the filter chamber, respectively, is provided with interference generating means for causing interference when the filter cap is attached or when the filter cap is to be removed, the filter The detachable workability of the filter can be improved since the filter removal operation and the filter mounting operation feeling are imparted by the resistance and friction noise by the interference generating means at the moment of mounting completion or the initial removal of the filter. Less immersion of the filter has the advantage that can be prevented in advance.

In addition, in the filter of the washing machine according to the present invention as described above, the interference generating means is formed of the uneven portion, and the uneven portion is provided in multiple in the detachable direction of the filter cap, so that the interference influence by the interference generating means can be surely acted. There is an advantage to that.

Claims (5)

A filter net installed inside the filter chamber to catch foreign substances; A filter cap for attaching and detaching a filter entrance and exit formed in the filter chamber; And an interference generating means provided in each of the filter cap and the filter chamber, the interference generating means causing interference at the moment of completion of the attachment of the filter cap or the removal of the filter cap. The method according to claim 1, The filter net filter, characterized in that the filter cap is integrally combined with the filter cap. The method according to claim 1 or 2, The interference generating means is a filter of the washing machine, characterized in that formed in the filter cap and the filter chamber, each of the concave-convex portion that can be mutually matched. The method according to claim 3, The irregularities filter of the washing machine, characterized in that provided in multiple in the detachable direction of the filter cap. The method according to claim 3 or 4, The uneven part is a filter of a washing machine comprising a first tooth provided in the filter cap and a second tooth provided in the filter chamber so as to be able to engage with the first gear portion in a detachable direction of the filter cap.

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