KR20060025734A - Water circulating device of washing machine - Google Patents

Abstract

The present invention relates to a washing water circulation system for a washing machine, and in particular, a circulation hose for forming a flow path for washing water contained in the tub circulated into the drum; A circulation pump provided on the circulation hose to pump laundry water; It is provided at the end of the circulation hose, and comprises a spray means for injecting the washing water to expand and circulate only when the washing water is circulated to diffuse into the drum, by spraying the washing water evenly over the back and side of the drum The performance of washing and rinsing administration is improved, and the amount of washing water required for washing is reduced.

Washing machine, wash water, circulation device, circulation pump, circulation hose, injector, nozzle, tube, injection hole

Description

Water Circulating Device Of Washing Machine             

1 is an internal configuration of a washing machine according to the prior art,

2 is a partially cutaway perspective view of a washing machine provided with an embodiment of a washing water circulation system according to the present invention;

3 is an internal configuration diagram of a washing machine equipped with an embodiment of a washing water circulation system according to the present invention;

Figure 4 is an enlarged cross-sectional view showing an embodiment of the washing water circulation system according to the present invention,

5 is a partially cut-away perspective view showing a state in which washing water is sprayed through one embodiment of a washing water circulation system according to the present invention;

6 is a partially cutaway perspective view illustrating a state in which washing water is sprayed through another embodiment of the washing water circulation system according to the present invention.

<Explanation of symbols on main parts of the drawings>

10: Tub 12: Cabinet

13: opening hole 14: gasket

14a: insertion hole 14b: cylindrical rib                 

15: cabinet cover 17: spring

18: damper 19: door

19a: door hinge 19b: locking mechanism

19c: door frame 19d: door glass

20: drum 21: entrance hall

22: handmade 23: lift

24: drain hole 26: rear portion

28: circumference 30: motor

31: rotating shaft 41: outer hose

42: water supply hose 43: detergent container

44: water supply bellows pipe 48: drainage bellows pipe

50: pump unit 52: filter case

54: drain pump 55: drain hose

56: circulation pump 60: circulation hose

70: injection means 72: nozzle

72a: through hole 72b: protrusion

72c: connection 75,75 ': tube

75a, 75a ': Injection hole

The present invention relates to a washing water injector of a washing machine, and more particularly, to a washing machine having an injector for widespread washing water into the drum.

In general, a washing machine is a device that removes contaminants from laundry by using detergent and water.

Such a washing machine is generally classified into an agitator type, a pulsator type and a drum type washing machine. The agitating type is rotated by washing a laundry rod rising from the center of the washing tank to the left and right, and the vortex type washing machine is located at the bottom of the washing tank. Wash by using the friction between the water flow and the laundry generated by rotating the disk-shaped pulsator formed from side to side.In the drum type, water, detergent and laundry are put inside the drum with a plurality of lifts protruding from the inside to rotate the drum. do.

1 is an internal configuration of a washing machine according to the prior art.

As shown in FIG. 1, a conventional drum washing machine includes a cabinet 1 including an cabinet cover 1c which forms an exterior of a washing machine and an access hole 1b is formed to allow laundry m to enter and exit the front side of the washing machine. A door 1a rotatably mounted on the front surface of the cabinet 1 to open and close the access hole 1b, a tub 2 supported bufferably in the cabinet 1, and the tub The water supply apparatus 5 which supplies the detergent dissolved water or the clean water (henceforth wash water w) to the inside of (2), and wash water w in the said tub 2 are supplied with the cabinet (1). A drainage device 6 for draining to the outside, a drum 3 rotatably disposed in the tub 2 to accommodate the laundry m, and a motor 4 for rotating the drum 3; And dampers 7 and springs 8 provided above and below the cabinet 1 to damp vibrations transmitted to the tub 2.

The tub 2 has an access hole 2a formed at the rear of the access hole 1a of the cabinet 1 to allow the laundry m to enter and exit the drum 20.

The drum 3 has an access hole 3c formed at the rear of the access hole 1b of the cabinet 1 so that the laundry m can enter and exit, and the lower part of the drum 3 has the washing water w in the tub 2. It is disposed so as to be immersed in), a plurality of hand (3b) is formed in the circumferential portion and the rear portion so that the washing water (w) in the tub (2) can be entered.

In addition, a lift 3a is mounted on the inner circumference of the drum 3 to lift the laundry m so that the received laundry m can be lifted to the inner upper part of the drum 3 and fall by its own weight.

The motor 4 is mounted to the rear part of the tub 2, and is disposed horizontally or horizontally so that the rotating shaft penetrates the center of the rear part of the tub 2 and is connected to the center of the rear part of the drum 3.

A gasket 9 is installed between the front surface of the cabinet 1 and the access hole 2a of the tub 2 to prevent the outflow of the washing water w, and the gasket 9 includes the cabinet 1. ) And the interspace formed by the tub (2).

Looking at the operation of the prior art configured as described above are as follows.

First, when the laundry (m) is put into the drum 3, the door (1a) is closed, the drum washing machine is operated, the inner lower portion of the tub (2) is supplied from the water supply device (5) Washing water (w) is contained.

The water supply device 5 washes the wash water until the lower part of the drum 3 reaches a level higher than the lower end of the drum 3 so that the lower part of the drum 3 is sufficiently wetted in the wash water w contained in the tub 2. The washing water m in the drum 3 flows into the drum 3 through the hand 3b of the drum 3 or into the drum 3 through the entrance hole 3c of the drum 3. soaked in (w).

Then, when the motor 4 is driven to rotate the drum 3, the laundry m accommodated inside the drum 3 is lifted up by the lift 3a and dropped while washing water w. Due to the action of the stain will fall.

After the washing stroke is completed, the contaminated washing water w in the tub 2 is drained out of the drum washing machine through the drainage device 6.

Then, the drum washing machine is rinsed several times to rinse the foam remaining in the laundry (m), the washing water supplied through the water supply device 5 is higher than the lower end of the drum (3) When the water is supplied until the motor 4 is driven and the drum 3 is rotated, the laundry m contained in the drum 3 is lifted up by the lift 3a, and the foam is rinsed while falling. Lose. And contaminated wash water including foam is drained to the outside through the drainage (6).

After the above several rinsing strokes, the drum washing machine rotates the drum in one direction at a high speed to perform a dehydration stroke for centrifugal dehydration of water in the laundry (m).

Here, the washing machine according to the prior art is provided with a washing water circulation system to quickly wash the laundry (m) accommodated in the drum to reduce the amount of washing water (w), increase the frictional force by the water flow to increase the washing power The washing water circulator is a device for pumping water in the lower side of the tub and spraying the water into the inner space of the drum from the upper side.

By the way, the washing water circulation apparatus includes an injector for causing the circulated washing water to be sprayed toward the inside of the drum, it is necessary to inject the circulated washing water wide into the drum.

The present invention has been made to solve the above problems of the prior art, by washing the washing water evenly to the inside of the drum to improve the performance of the washing stroke and rinsing stroke, washing machine that can reduce the amount of washing water required for washing The purpose is to provide an injection device.

Another object of the present invention is to provide an injector of a washing machine in which laundry is not caught by the injector when the laundry is not circulated in the laundry.

Washing water circulation device of the washing machine according to the present invention for solving the above problems is a circulation hose for forming a flow path for the wash water accommodated in the tub circulated into the drum; A circulation pump provided on the circulation hose to pump laundry water; It is provided at the end of the circulation hose, and comprises a spray means for injecting so that the washing water is expanded and circulated only when the washing water is circulated to diffuse into the drum.

In addition, the spray means is contracted when the wash water is not circulated, and when the wash water is circulated, it is expanded to the inside of the drum to spray the wash water from the inside of the drum.

In addition, the spray means is composed of a tube which is rolled up in a snail shape when the washing water does not circulate, but is elongated when the washing water is circulated, and a nozzle that connects the circulation hose and the tube to pass the washing water.

In addition, the tube is formed with one or more injection holes through which the washing water is sprayed. Here, the injection hole may be formed radially on the outer peripheral surface of the tube, it may be formed at the end of the tube.

In addition, the nozzle is mounted to the upper end of the gasket disposed in front of the tub.

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

2 is a partially cutaway perspective view of a washing machine provided with one embodiment of a washing water circulation system according to the present invention, FIG. 3 is an internal configuration diagram of a washing machine provided with one embodiment of the washing water circulation system according to the present invention, and FIG. 5 is an enlarged cross-sectional view illustrating an embodiment of a washing water circulation system according to the present invention, and FIG. 5 is a partially cutaway perspective view illustrating a state in which washing water is sprayed through an embodiment of the washing water circulation system according to the present invention.

Washing machine equipped with an embodiment of the washing machine circulator of the washing machine according to the present invention, as shown in Figures 1 and 2, the cabinet 12, the cabinet 12 is supported to be buffered in the wash water ( a tub (10) in which w) is contained, a drum (20) rotatably disposed in the tub (10) to accommodate laundry (m), and a driving motor (30) for rotating the drum (20) It is configured by.

The cabinet 12 includes a spring 17 mounted on an upper portion of the cabinet 12 to suspend the tub 10 and a damper mounted below the cabinet 12 so as to be connected to the tub 10. 18) and a cabinet cover 15 disposed at the front of the cabinet 12 to cover the front surface of the cabinet 12 and having an entrance hole 16 through which laundry (m) can enter and exit, and the entrance hole ( It is configured to include a door (19) rotatably provided to open and close the 16.

The door 19 has an opening hole formed in the center thereof, and a locking mechanism 19b is mounted on one side thereof to be connected to the cabinet cover 15 by a door hinge 19a, and to be locked to the cabinet cover 15 on the other side. The door frame 19c and the door glass 19d mounted in the opening hole of the door frame 19c and convex toward the drum 20.                     

The tub 10 has an opening hole 13 formed at a front side thereof to allow the laundry m to enter and exit the drum 20, and a rear surface of the door frame 19c around the opening hole 13. Alternatively, a gasket 14 having a sealing part in close contact with the rear surface of the door glass 19d is mounted to prevent leakage of the washing water w and detachment of the laundry m.

The drum 20 has an entrance hole 21 formed at the front portion thereof to allow the laundry m to enter and exit, and a plurality of manual holes 22 are formed at the circumferential or rear portion thereof to allow the wash water to flow in and out. A lift 23 is mounted on the inner circumferential surface to lift and drop the laundry m, and the lower part is immersed in the wash water w in the tub 10.

The drive motor 30 is mounted to the rear surface of the tub 10, the rotary shaft 31 is supported by the tub 10 while passing through the rear portion of the tub 10 is connected to the rear surface of the drum 20. .

On the other hand, the upper side of the tub 10 is provided with a water supply for supplying the wash water into the tub (10).

The water supply device is connected to the external hose 41, the water supply valve 42 for intermittent clean water supplied through the external hose 41, and the water supply hose 42 for guiding the water passing through the water supply valve 42 ), A detergent reservoir 43, a detergent storage space, a water supply passage, and a discharge port formed to mix and discharge water supplied through the water supply hose 42 with a previously stored detergent, and water discharged from the detergent container 43, or It comprises a water supply bellows pipe 44, one end of which is connected to the outlet of the detergent container 43 and the other end of which is connected to the water inlet formed on the upper side of the tub 10 so as to guide detergent into the tub 10. do.                     

In addition, the lower side of the tub 10 is formed with a drain for draining the wash water, the drainage bellows pipe 48 for guiding the drained wash water is connected.

The drain bellows pipe 48 is connected to a pump unit 50 for pumping water drained through the drain bellows pipe 48 from the tub 10 to be discharged to the outside or circulating back into the drum 20. .

The pump unit 50 includes a filter case 52, a drain pump 54, and a circulation pump 56.

The filter case 52 is formed with a connection port to which the drain bellows pipe 48 is connected, and a flow path through which the wash water passes is formed in communication with the drain pump 54 and the circulation pump 56, and mixed in the wash water. A filter (not shown) is mounted to filter foreign matter such as seams.

A drain hose 55 disposed to extend outside the cabinet 12 is connected to the drain pump 54 so that the drain hose 55 receives water introduced into the filter case 52 when the washing machine is drained. Drain to the outside through

The circulation pump 60 is connected to the circulation pump 56 so as to extend to the upper side of the gasket 14, so that the water flowing into the filter case 52 when washing or rinsing a washing machine is connected to the circulation hose 60. Pump).

One end of the circulation hose 60 is disposed adjacent to the upper side of the gasket 14.

An injection device 70 having a nozzle is connected to the end of the circulation hose 60 to spray the guided wash water toward the drum 20.

The injector 70 sprays the washing water pumped through the circulation hose 60 from the inside of the gasket 14 and discharges it toward the inside of the drum 20 so that the top surface of the gasket 14 is discharged. The gasket 14 has an insertion hole 14a formed at an upper side thereof, and a cylindrical rib 14b protrudes from a peripheral upper portion of the insertion hole 14a.

As shown in FIG. 4, the injector 70 protrudes upward from the cylindrical rib 14b to be connected to the circulation hose 60, and the through hole 14a and the cylindrical rib 14b of the gasket 14. ) And a nozzle 72 through which the washing water passes through the through hole 72a, and the outer circumferential surface of the connecting portion 72c, which is the end of the nozzle 72, and the through hole 72a of the nozzle 72. It consists of a tube 75 that is in long communication.

The nozzle 72 protrudes on the outer circumferential surface of the annular projection 72b supported on the upper end of the cylindrical rib 14b so as to prevent falling into the lower side of the gasket 30 by the flow of water and water or external vibration. do.

In addition, if the wash water does not pass through the nozzle 72, the tube 75 is rolled up into a snail shape and contracted on the nozzle 72 side. When the wash water is discharged from the nozzle 72, the tube 75 is Washing water is sprayed through the tube 75 in the expanded and expanded state.

Here, the tube 75 is formed with a spray hole (75a) for washing the washing water, the minute hole (75a) is formed radially on the outer peripheral surface of the tube (75).

Looking at the operation of the present invention configured as described above are as follows.                     

First, when the laundry (m) is put into the drum 20 and the door 19 is closed and the washing machine is driven, the inner lower part of the tub 10 and the drainage bellows 48 and the filter are driven. In the case 52, the washing water supplied from the water supply bellows 44 is contained, and the laundry m in the drum 20 is wetted by the washing water introduced through the hand 22.

Then, when the motor 30 is driven, the drum 20 is rotated, and the laundry (m) inside the drum 20 is lifted up by the lift 23 and then dropped by the action of detergent and water. Pollution will fall.

While the water supply or washing is in progress, the circulation pump 56 is driven to pump the washing water in the filter case 52, and the washing water pumped by the circulation pump 56 is the circulation hose 60. Guided to the upper side of the gasket 14, and passes through the through hole (72a) of the nozzle (72).

Water is filled in the tube 75 by the washing water pumping force passing through the nozzle 72, and the tube 75, which has been rolled in a snail shape, of the drum 20 by the pressure of the water filled therein. It expands to the inside and expands to the inside of the drum 20. Washing water is injected from the inside of the drum 20 through a spray hole 75a formed radially on the outer circumferential surface of the tube 75.

The washing water sprayed through the injection hole 74a of the tube 74 is widely sprayed to the lower part of the rear part 26 of the drum 20 and in particular to the upper end of the circumferential part 28 so as to be uniformly wetted with the laundry m. do.                     

Typically, the laundry m is lifted up to the inner upper portion of the drum 20 and then falls, so that the tube 75 is sufficiently inflated to the inside of the drum 20 when it is unfolded by the circulating wash water and then Preferably, the tube 75 is long enough to allow the washing water to be evenly sprayed to the rear portion 26 of the drum 20.

In this case, the longer the length of the tube 75, the larger the elastic force is required to dry the snail shape when the tube 75 is contracted, the length of the tube 75 is the size of the drum 20 and the circulation pump 56 ) Should be determined in consideration of the pressure and the like.

Eventually, the circulating washing water (w) is sprayed all over the inner circumference of the drum 20 so that the washing water (m) is uniformly soaked in the entire laundry (m), thereby reducing the amount of washing water supplied when preparing for the same washing performance. When compared to the same wash water washing performance is improved.

When the washing operation is completed, contaminated water remains inside the tub 10, the inside of the drainage bellows 48 and the filter case 52, and the contaminated water is discharged to the drain pump 54. When it is driven through the drain hose 55 will be drained to the outside of the washing machine.

The washing machine includes a rinsing stroke for supplying clean tub water to the tub 10 to rinse the foam remaining in the laundry. When the rinsing stroke is selected, the inner lower portion of the tub 10 and the drainage bellows 48 ) And the washing water supplied from the water supply bellows 44 are contained in the filter case 52, and the motor 30 is driven to rinse the laundry m to rotate the drum 20. The laundry (m) inside the drum (20) is lifted up by the lift (23), and bubbles are rinsed by the wash water as it falls.                     

During the water supply or rinsing as described above, the circulation pump 56 is driven as in the case of the washing stroke, and the washing water passing through the nozzle 72 expands the tube 75 to inject the injection hole ( 75a) is widely sprayed to the lower or circumferential portion 28 of the rear portion 26 of the drum 20, so that it is evenly soaked in the laundry (m), it is possible to reduce the amount of wash water supplied in preparation for the same rinsing performance, Rinsing performance is improved when preparing for the same wash water.

When the rinsing is completed, contaminated wash water remains inside the tub 10, the inside of the drainage bellows 48 and the filter case 52, and the contaminated wash water is discharged to the drain pump 54. When it is driven through the drain hose 55 will be drained to the outside of the washing machine.

Then, the washing machine centrifugally dehydrates the water remaining in the laundry by rotating the drum 20 at high speed, if the dehydration stroke is selected.

6 is a partially cutaway perspective view illustrating a state in which washing water is sprayed through another embodiment of the washing water circulation system according to the present invention.

In the washing machine equipped with another embodiment of the washing water circulation system according to the present invention, as illustrated in FIG. 6, the injection hole 75a 'formed in the tube 75' connected to the nozzle 72 has the tube. It is not formed on the outer circumferential surface of the 75 ', but is formed on the end of the tube 75', and the other configuration is the same as the embodiment of the present invention, the same reference numerals are used and the detailed description thereof will be omitted.                     

The washing water sprayed through the injection hole 75a 'of the tube 75' is particularly wetted to the laundry m located at the rear part 26 of the drum 20, so that the same washing performance can be prepared. When the amount of wash water supplied can be reduced, the washing performance is improved when compared to the same wash water.

Furthermore, in the washing machine provided with another embodiment of the washing water circulation system, the washing water may not be sprayed on the side portion 26 of the drum 20, and thus, the plurality of spray holes may be radially formed on the outer circumferential surface of the tube 75a '. If further provided, it is possible to spray the washing water evenly to the entire drum 20 more efficiently. The size of the injection hole of the outer peripheral surface and the injection hole of the end of the tube is preferably determined according to the size and shape of the drum.

On the other hand, the injection means which is provided at the end of the circulation hose and inflates only when the wash water is circulated and sprays the circulated wash water to diffuse into the drum, in addition to the tubes 75 and 75 'that can be rolled into the snail shape, In addition to the embodiment and the drawings, the center penetrates and may be configured by using a superimposed combination with different inner diameters, and various modifications are possible within the scope of the technical spirit of those skilled in the art.

 Washing water circulator of the washing machine according to the present invention configured as described above is provided with an injection device that is expanded when the washing water is circulated to spread the washing water into the drum, spraying the washing water evenly over the back and side of the drum; It is possible to improve the performance of the washing administration and rinsing administration to reduce the amount of washing water required for washing.

For another purpose, when the laundry enters the drum in a washing machine in which the washing water is not circulated, the spray device contracts and is positioned in a snail shape at the upper end of the gasket, whereby the washing device of the washing machine catches the laundry. There is little fear of breakage, there is an advantage that the injector is not entangled with the laundry even after washing.

Claims (7)

A circulation hose forming a flow path through which the wash water accommodated in the tub is circulated into the drum; A circulation pump provided on the circulation hose to pump laundry water; An injection means provided at an end of the circulation hose and injecting the washing water to expand and circulate only when the washing water is circulated to diffuse into the drum; Washing water circulator of the washing machine comprising a. The method of claim 1, The spraying means is contracted when the wash water is not circulated, and when the wash water is circulated, the washing means expands to the inside of the drum to inject the wash water from the inside of the drum. The method according to claim 1 or 2, When the washing means is not circulated in the washing water is snail-shaped, when the washing water is circulated when the elongated tube, washing the washing machine comprising a nozzle for connecting the circulation hose and the tube to pass the wash water Water circulator. The method of claim 3, wherein The tube is washing water circulating device of the washing machine, characterized in that at least one injection hole for washing the water is formed. The method of claim 4, wherein The spray hole washing machine circulator of the washing machine, characterized in that formed radially on the outer peripheral surface of the tube. The method of claim 4, wherein Washing water circulation device of the washing machine, characterized in that the injection hole is formed at the end of the tube. The method of claim 3, wherein The nozzle is washing machine circulator of the washing machine, characterized in that mounted on the upper end of the gasket disposed in front of the tub.

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