KR20090107223A - Washing Machine - Google Patents

Abstract

PURPOSE: A washing apparatus is provided to perform washing and rinsing with the washing water by evenly supplying the water stored in a tub to laundry in a drum. CONSTITUTION: A washing apparatus comprises a tub, a drum, a cyclic unit, and a blow nozzle. A washing apparatus comprises washing water. The drum is installed inside a tub to be rotated. The cyclic unit circulates the washing water stored in a tub to the upper part of drum. The blow nozzle(100) sprays which is circulated by the cyclic unit of the drum to the rear inner part of the drum. The blow nozzle sprays the washing water to disperse the washing water along the lower end of the drum. The blow nozzle comprises a plurality of jet holes(110) toward the inside of the drum. Each nozzle sprays the washing water at each falling location along the longitudinal direction of the drum.

Description

Washing Machine {Washing Machine}

The present invention relates to a laundry machine, and more particularly, to a circulating laundry machine configured to circulate water stored in the bottom of a tub to be supplied to a drum.

In general, the washing apparatus may be classified into a pulsator washing machine in which the drum is installed in the vertical direction and a drum washing machine in which the drum is laid in the horizontal direction.

A conventional drum washing machine includes a case forming an exterior, a door installed at a front opening of the case, a tub installed inside the case to receive wash water, and a drum rotatably installed inside the tub.

The drum accommodates the laundry object therein, and shares the wash water accommodated in the tub by the through hole of the outer circumferential surface of the drum. And washing is performed while the drum rotates by a drive unit.

The tub accommodates the washing water therein, and allows the laundry objects contained in the drum to be washed and rinsed. And, the lower side of the tub is provided with a drain for discharging the wash water.

When using the drum washing machine, the laundry object is put into the drum through a door formed in front of the case. And the wash water is supplied to the tub, washing is performed while the laundry rises and falls inside the drum by the rotation of the drum.

In addition, when the washing is finished, while the drum rotates at a high speed, the dehydration operation in which the washing water contained in the laundry object is discharged to the outside of the drum by centrifugal force is performed. Then, the wash water discharged to the outside of the drum is discharged to the outside through the drain hole provided in the lower end of the tub.

The drum washing machine as described above has an advantage that washing can be performed using less washing water than a pulsator washing machine.

However, even in this case, in order for the washing and rinsing to proceed smoothly, at least the washing water supplied to the tub had to be supplied at the height of the laundry accommodated in the drum. That is, when the wash water is not supplied as much as the height of the laundry, there is a problem in that the wash water stored in the bottom of the tub is not practically used.

In particular, when the wash water is absorbed in the dry laundry at the beginning of the operation, the wash water level is lower than expected, the problem of washing and rinsing did not occur properly.

The present invention has been made to solve the above-described problems in the prior art, by supplying the water stored in the tub evenly to the laundry in the drum, to provide a laundry device that can be washed and rinsed smoothly with a small number of washes For sake.

An object of the present invention as described above, the tub for receiving the wash water; A drum rotatably installed inside the tub; A circulation unit configured to circulate the washing water stored in the tub to an upper side of the drum; And it can be achieved by a washing apparatus comprising a; spray nozzle, characterized in that for spraying the washing water circulated by the circulation unit to the rear of the drum.

Here, the spray nozzle is preferably to spray the washing water to be distributed along the lower longitudinal direction of the drum.

At this time, the injection nozzle is provided with a plurality of injection holes in the inner direction of the drum, it is more preferable that each injection hole injects the washing water to different drop positions along the longitudinal direction of the drum.

Specifically, each of the injection holes may be formed so as to form different water pressure of the washing water sprayed according to the size of the cross-sectional area, to spray the washing water to each other drop position.

Therefore, the washing water sprayed by the spray nozzle may be sprayed to the rear of the drum as the water pressure sprayed is higher.

In addition, the injection nozzle has a plurality of flow paths in which washing water flows from the circulation unit and proceeds to the respective injection holes, and each injection hole is different depending on the length of the corresponding flow path extending inwardly of the drum. It is possible to install so as to spray the washing water to the drop position.

Therefore, the more the injection hole connected to the passage extending in the inner direction of the drum may be sprayed to the rear of the drum inside the washing water.

On the other hand, each of the injection port is connected to each flow path formed in the center direction of the drum lower side, it is preferable that the surface on which each injection hole is formed to be formed to form a slope and the front surface of the drum.

On the other hand, the injection nozzle may be configured to include a flow path that gradually widens in the running direction of the washing water, the washing water passing through the injection nozzle can be configured to be sprayed while spreading in the width direction.

Here, the injection nozzle may form a flow path that is gradually thinner and longer in the width direction along the traveling direction.

In addition, the injection nozzle is preferably configured to be sprayed while the washing water is diffused to a high water pressure by having an injection port formed in the width direction long and thin.

In addition, the injection nozzle may be provided with a guide rib for guiding the running direction of the washing water so that the washing water passing through the flow path in the width direction.

At this time, it is preferable that the spray nozzle is installed obliquely in the direction of the drum so that the washing water is sprayed to the lower front of the drum at one end of the injection port, and the washing water is sprayed to the lower rear of the drum at the other end of the spray port.

On the other hand, the injection nozzle comprises a plurality of injection units for injecting the washing water, the injection unit is installed in different positions are formed to spray the washing water to each different drop position along the longitudinal direction of the drum It is also possible.

According to the present invention, by reducing the amount of washing water required to proceed with washing or rinsing, there is an advantage that can save water.

Furthermore, it is possible to evenly supply the washing water to the laundry accommodated in the drum by the injection nozzle of the present invention, which has the effect of improving the effect of washing and rinsing.

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

1 is a perspective view showing the inside of a washing apparatus according to a first embodiment of the present invention, Figure 2 is a cross-sectional view showing a longitudinal section of the washing apparatus of FIG.

Washing apparatus according to this embodiment is an outer case 10 to form an appearance, the tub 20 is installed inside the outer case 10 to accommodate the wash water; It comprises a drum (30), etc. rotatably installed inside the tub (20).

The outer case 10 protects various components installed therein and forms an appearance of the washing apparatus.

The tub 20 is supported by the spring 21, the damper 22, etc. inside the outer case 10, and accommodates the wash water supplied from the outside through the water supply device (50).

Inside the tub 20, a drum 30 for receiving laundry is rotatably installed, and a driving unit 40 is installed at a rear end of the tub 20 so that the drum 30 is driven by the driving unit 40. Will rotate. At this time, the outer surface of the drum 30 is formed with a plurality of dehydration hole 31 which is allowed to enter and wash.

That is, when a predetermined amount or more of the washing water is accommodated, the drum 30 may be shared with the washing water through the dehydration hole 31. When the washing water is dewatered, the washing water that is collected in the laundry is discharged through the dewatering hole 31. It is possible to be.

And, the inner peripheral surface of the drum 30 may be provided with a plurality of lifters 32 protruding in the longitudinal direction of the drum. At this time, when the drum 30 is rotated by the driving unit 40, the lifter 32 serves to lift the laundry accommodated in the drum 30 in the rotational direction of the drum 30. Accordingly, the laundry is washed while being raised and dropped by the rotation of the drum 30.

On the other hand, the front of the drum 30 may be formed in the door 60 to be opened and closed so that the laundry is put and collected.

In addition, the gasket 70 for shielding between the front of the tub 20 and the rear of the door 60 so that the tub 20 to accommodate the wash water in the closed state of the door 60 to form a sealed space. ) Is formed along the circumferential direction. At this time, the gasket 70 is made of a member having an elasticity to absorb the vibration of the tub 20, it is preferably provided in a bent shape.

And the present embodiment preferably further comprises a circulation unit 80 for circulating the washing water stored in the tub 20 to the upper side of the drum (30).

The laundry introduced into the drum 30 is washed using the wash water accommodated in the tub 20. Therefore, when the wash water accommodated in the tub 20 does not reach the height of the drum 30, it is not easy to use the wash water. Therefore, in this embodiment, the circulation unit 80 is provided to supply the washing water stored in the tub 20 to the drum 30, even when the amount of the washing water accommodated in the tub 20 is small. This can be used for washing or rinsing.

In detail, the circulation unit 80 may include a circulation passage 81 through which washing water stored in the tub 20 may be supplied to the drum 30. The circulation passage 81 of the present embodiment is formed such that one end is installed below the tub 20 and extends upward along the outside of the tub 20.

At this time, the water stored in the lower side of the tub 20 along the circulation flow path 81 should be pulled upwards, the circulation unit 80 pumps the washing water upward along the circulation flow path 81. The circulation pump 82 may be provided.

And, the other end of the circulation passage 81 is preferably installed to discharge the washing water from the upper front of the drum (30). Specifically, the other end of the circulation passage 81 is formed to pass through the upper side of the gasket 70 or the tub 20 to discharge the washing water to the front of the drum. In addition, an end of the washing water discharge may be installed to have a spray nozzle 100 for supplying the washing water.

In this case, the injection nozzle 100 is preferably installed at a position spaced apart from the front of the drum 30 by a predetermined interval so that the drum 30 does not collide with the injection nozzle 100 due to the vibration generated when the drum 30 rotates. Do.

Therefore, in the case of the present invention, the washing water stored in the tub 20 is supplied to the drum 30 along the circulation passage 81 by the circulation unit 80, by using a small amount of washing water. Washing or rinsing can be performed. In addition, even when the wash water is sufficiently accommodated in the tub 20, the washing water may be additionally supplied from the upper side, so that the laundry may be quickly wet when laundry is added.

On the other hand, the washing apparatus according to the present embodiment may be configured to be driven in a transmissive washing method that performs the washing or rinsing while rotating the drum 30 at a high speed by the drive unit 40.

Here, the transmissive washing method is performed by washing or rinsing while rotating the drum 30 at a high speed such that the drum 30 is rotated in a state in which laundry is in close contact with the drum 30, unlike a rotation speed of a general drum during washing or rinsing. That's the way. At this time, the wash water contained in the laundry may be washed or rinsed while passing through the laundry by centrifugal force and exiting to the outside of the drum 30.

However, in the permeable washing method, the drum rotates at a higher speed than the general washing method, so that the rotating drum 30 is not resisted by the washing water accommodated in the tub 20. It can be supplied to maintain the water level lower than the lower surface of the drum (30).

In addition, the wash water may be circulated upward by the circulation unit 80 to be continuously supplied into the drum 30. The wash water supplied in this way passes through the laundry by the high speed rotation of the drum 30 and is discharged to the outside of the drum 30 to be stored on the bottom surface of the tub 20 along the inner wall of the tub 20.

At this time, the spray nozzle 100 for supplying the washing water circulated by the circulation unit 80 into the drum 30 is preferably provided to spray the washing water to the inner rear of the drum (30). Do. Hereinafter, the spray nozzle 100 will be described in detail with reference to FIGS. 3 to 5.

3 is a schematic view showing a shape in which washing water is sprayed by the spray nozzle 100, FIG. 4 is a perspective view showing the spray nozzle 100, and FIG. 5 is a plan view showing the spray nozzle 100 from above.

The drum 30 is formed in a cylindrical shape with a front surface open, and the injection nozzle 100 is preferably installed in the front portion of the drum (30). In this case, when the washing water is limited to only the front of the drum 30 by the injection nozzle 100, the washing water may not be supplied to the laundry positioned inside the rear of the drum 30.

Therefore, as shown in Figure 4, the injection nozzle 100 of the present embodiment is preferably formed so that the washing water can be sprayed to the rear as well as the front of the drum (30). That is, the spray nozzle 100 may be installed to spray the washing water in various directions of the drum 30 so as to evenly supply the washing water to the laundry accommodated in the drum 30.

In particular, when the drum 30 does not rotate, the laundry inside the drum is concentrated in the lower end forming the lowest position in the drum. Therefore, the injection nozzle 100 is preferably installed to evenly spray along the longitudinal direction of the lower end of the drum 30 so that even when the drum 30 is not rotated to supply the washing water intensively.

As shown in FIG. 5, the injection nozzle 100 may be installed to include a plurality of injection holes 110 in an inner direction of the drum 30. And, each injection port 110 is preferably installed to spray the washing water to the different drop position along the longitudinal direction of the drum (30).

That is, the respective injection holes 110 are installed to spray the washing water at different positions at predetermined intervals from the front to the rear of the drum toward the lower side of the drum 30, and the washing water along the longitudinal direction of the drum It can be evenly distributed.

Therefore, when washing or rinsing, the laundry that is in close contact with the inner circumferential surface of the drum 30 may be supplied with the washing water evenly while rotating together with the drum 30. In addition, even when the drum 30 is not rotated so that the laundry is collected under the drum, it is possible to supply the washing water toward the laundry.

Of course, the spray nozzle may be configured to branch the washing water introduced by the circulation unit 80 in various directions, to spray the washing water through a plurality of spray units installed in different positions. However, the installation of the plurality of injection units in different positions may be cumbersome.

Therefore, the injection nozzle 100 of the present embodiment is preferably formed with a plurality of injection holes integrally on one case as shown in FIG.

According to the present invention, at this time, each injection port 110 is preferably formed to have a different shape or different flow path. The injection nozzle 100 is installed in front of the drum in which the opening of the drum 30 is formed. In this case, in order for the washing water to be sprayed to the different positions from the front to the rear of the drum 30 through the respective injection holes 110, each injection hole 110 is configured to be different in the spraying direction or spraying speed of the sprayed washing water It is desirable to be.

In this case, each of the injection holes 110 may have different cross-sectional areas of different sizes, and may form different water pressures of the washing water sprayed through the injection holes 110. Here, when passing through the flow path under the same conditions, the smaller the cross-sectional area of the injection hole 110 may be injected at a higher water pressure, the larger the cross-sectional area may be injected at a lower water pressure.

Here, while the washing water sprayed at a low water pressure is sprayed in a form similar to a free fall motion, the washing water sprayed at a high water pressure tends to proceed in a spraying direction rather than a free fall.

Therefore, the washing water sprayed at a low water pressure is preferably formed to supply the washing water to the front of the drum 30 adjacent to the position where the spray nozzle 100 is installed, and the washing water sprayed at the high water pressure is the drum ( It is preferable to form to supply the wash water to the rear of the 30).

On the other hand, it is also possible to form different speed components of the washing water sprayed through each injection port 110. Even if sprayed through the same injection port 110, it may fall to different positions depending on the speed component having the washing water is sprayed.

In this case, the injection nozzle 100 may include a plurality of flow paths 120 through which the washing water flowing from the circulation unit 80 passes, and each of the flow paths 120 corresponds to the plurality of injection holes 110. It may be formed to. In addition, the flow paths 120 may be formed to be different from each other, so that the wash water passing through each flow path 120 may be sprayed with different speed components.

For example, the wash water passing through the flow path 120 formed in the vertical direction falls directly in front of the drum 30, while the wash water passes through the flow path 120 extending in the inward direction of the drum 30. It is possible to be sprayed to the rear of the drum 30 to hold the speed component in the inward direction of the drum (30).

Therefore, it is preferable that the injection hole connected to the passage extending in the inner direction of the drum 30 is configured to supply the washing water to the rear of the drum 30.

As shown in Figure 5, the injection nozzle 100 of the present embodiment may be formed by applying the principle described above.

The injection nozzle 100 may include a plurality of injection holes 110 having different cross sections, and the injection holes 110 may be connected to flow paths 120 formed differently from each other.

As the injection hole 110 formed in the a direction, the cross-sectional area is narrower, and the injection hole 110 formed in the b direction may be wider, the cross-sectional area. Therefore, the injection hole 110 formed in the a direction sprays the washing water at high water pressure, and the injection hole 110 formed in the b direction sprays the washing water at low water pressure.

In addition, the flow path 120 connected to the injection hole 110 formed in the a direction is formed to extend in the drum 30 inward direction, and the injection hole 110 formed in the b direction extends in the drum 30 inner direction. The length can be configured to be short. In particular, as illustrated in FIG. 5, the position at which the injection hole 110 is installed may be stepped to differentiate the length of each of the flow paths 120 extending inward.

In this case, the washing water may be sprayed to the rear of the drum 30 as the washing water has a velocity component in the drum 30 inward direction at the injection port 110 in the a direction and is injected at high water pressure. On the other hand, as the injection port 110 formed in the b direction, the speed of the washing water to be sprayed toward the drum 30 inward direction is also weak and the water pressure is also low, the drum 30 does not reach the rear of the drum 30 ) Near the front of the plane.

Therefore, in the spray nozzle 100 of the present embodiment, it is possible to spray washing water evenly from the front to the rear of the drum 30 along the lower longitudinal direction of the drum 30.

On the other hand, the injection nozzle 100 may be installed in the upper front of the drum (30). And, if one injection nozzle is installed, it may be preferable to be installed in front of the upper end of the drum.

However, when two or more injection nozzles are installed or separate steam injection nozzles for supplying steam to the drum are provided, they are positioned at one side to be installed at symmetrical positions with respect to the top of the drum. Can be installed.

4 illustrates a case in which the injection nozzle 100 is formed on one side. At this time, although not shown separately, if the steam injection nozzle or a separate injection nozzle is installed, it is preferable to be installed to be biased to the opposite side to form a symmetry with the injection nozzle 100 shown in FIG.

As such, even when the injection nozzles are formed to be biased toward one side, the flow paths connected to the respective injection holes 110 may be formed in a direction corresponding to the positions where the washing water is dropped. That is, the injection nozzle 100 according to the present embodiment supplies the washing water in the longitudinal direction of the lower end of the drum 30, and each of the flow paths 120 is formed to face the center direction of the drum 30. It is desirable to be.

In this case, as shown in FIG. 5, the surface on which the injection hole 110 of the injection nozzle 100 is formed may be installed to form a predetermined angle with the opened front surface of the drum 30. In particular, the injection hole 110 formed at a position far from the center of the drum 30 is preferably formed to be installed in the inner direction of the drum (30).

In this embodiment, the injection nozzle 100 is installed at a position 35 ° to 45 ° from the center of the drum, and the cross section in which the injection hole 110 is formed is inclined between 5 ° to 10 ° with the opened front surface of the drum. It was measured through the experiment that the sprayed washing water is sprayed in the lower longitudinal direction of the drum 30 when it is formed to lose.

However, the angle may vary depending on the position where the spray nozzle 100 is installed, and may vary in a predetermined range depending on the hydraulic pressure of the washing water sprayed or the forming angle of the flow path 120.

This first embodiment has been described with a washing apparatus for supplying the washing water in various directions inside the drum 30 by using the injection nozzle 100 having a plurality of injection holes (110).

Hereinafter, a second preferred embodiment according to the present invention will be described with reference to FIGS. 6 and 7. However, the same components as the first embodiment described above are denoted by the same reference numerals for convenience of description, and detailed description thereof will be omitted.

In the first embodiment, the injection nozzle 100 includes a plurality of injection holes, in which the washing water is sprayed to different positions through the respective injection holes. However, in the present embodiment, one injection hole 110 is formed. A washing machine including the spray nozzle 100 will be described.

As shown in FIG. 6, the spray nozzle 100 sprays the washing water through one spray hole 110. However, the injection nozzle 100 is provided with a flow path that gradually widens along the running direction of the washing water passing through the inside, it is sprayed while the washing water passing through the injection nozzle 100 is spread in the width direction desirable.

This is to take advantage of the phenomenon that when the pressure of the end of the hose connected to the tap water in the daily life, the water is widely spread at high pressure while passing through the end. Therefore, even if the washing water is sprayed through one injection hole 110, it is possible to be supplied in various directions inside the drum.

As shown in FIG. 6, the flow path 120 formed inside the injection nozzle 100 preferably has a shape in which the height of the cross section of the flow path 120 gradually decreases in the direction in which the washing water proceeds. In this case, although the width of the flow path 120 is widened along the running direction of the washing water, the cross-sectional area of the flow path 120 is preferably formed to become smaller. Therefore, the injection hole 110 through which the washing water is sprayed may be formed to be thin and long to form the smallest cross-sectional area of the flow path 120.

At this time, in the injection nozzle 100 as the cross-sectional area of the flow path 120 gradually decreases in the direction of washing water, the water pressure increases. Therefore, the washing water can be easily diffused in the width direction, it can be supplied into the drum at a high water pressure.

In addition, the inside of the flow path 120 through which the wash water passes may include a guide rib 130 for inducing the spread of the wash water in the width direction. The guide ribs 130 may be installed to be inclined in the width direction along the running direction of the washing water, thereby inducing the washing water to be evenly spread in the width direction.

7 is a schematic diagram showing a shape in which washing water is sprayed by the spray nozzle 100 according to the present embodiment.

At this time, the injection nozzle 100 of the present embodiment is installed so that the injection port 110 is parallel to the front of the drum 30, even if the drum 30 rotates, washing water is not supplied to a predetermined position inside the drum 30. There is concern. Therefore, the injection nozzle 100 is preferably formed such that the injection hole 110 is inclined at a predetermined angle with the front surface of the drum 30.

Further, as described in detail in the first embodiment, the spray nozzle 100 of the present embodiment is also preferably sprayed evenly along the longitudinal direction of the drum bottom. Therefore, the spray nozzle 100 is supplied with the washing water sprayed from one end of the injection port to the front of the lower end of the drum 30, the washing water sprayed from the other end is supplied to the rear of the drum 30 lower end It is preferable to be installed obliquely in the direction of (30).

Therefore, the present embodiment provides a washing apparatus capable of continuously supplying washing water from the bottom front to the rear of the drum 30.

The technical spirit of the present invention has been described with reference to two embodiments. However, the above embodiment is merely an example, and the present invention is not limited to the above-described shape and installation position. In addition to this, by adjusting the water pressure and the direction of the flow path of the spray nozzle for spraying the washing water, any configuration can be sprayed washing water in various directions inside the drum.

1 is a perspective view showing the inside of a washing apparatus according to a first embodiment of the present invention;

2 is a cross-sectional view showing a longitudinal section of the washing apparatus of FIG.

3 is a schematic view showing a shape in which the washing water is sprayed by the spray nozzle of FIG.

4 is a perspective view showing the injection nozzle of FIG.

5 is a plan view showing the injection nozzle of Figure 1 from above;

6 is a perspective view showing a jet nozzle according to a second preferred embodiment of the present invention;

FIG. 7 is a schematic diagram illustrating a shape in which washing water is sprayed by the spray nozzle of FIG. 6.

<Description of the symbols for the main parts of the drawings>

10: Outcase 20: Tub

30: drum 80: circulation unit

100: injection nozzle 110: injection hole

120: Euro

Claims (15)

A tub containing wash water; A drum rotatably installed inside the tub; A circulation unit configured to circulate the washing water stored in the tub to an upper side of the drum; And, And a spray nozzle for spraying the washing water circulated by the circulation unit to the rear of the drum. The method of claim 1, And the spray nozzle spray nozzles for spraying the washing water so as to be distributed along the bottom length direction of the drum. The method of claim 2, The spray nozzle is provided with a plurality of injection holes in the inner direction of the drum, each of the injection holes washing machine, characterized in that for spraying the washing water to different drop position along the longitudinal direction of the drum. The method of claim 3, Each of the spray holes to form a different water pressure of the washing water is sprayed according to the size of the cross-sectional area, washing apparatus characterized in that for spraying the washing water to each other drop position. The method of claim 4, wherein Washing machine sprayed by the spray nozzle is characterized in that the washing is sprayed to the rear of the drum as the water pressure is higher. The method of claim 3, The jet nozzle has a plurality of flow paths in which washing water flows from the circulation unit and proceeds to the respective jet holes, and each jet port has different drop positions depending on the length of the corresponding flow path extending inwardly of the drum. Washing apparatus, characterized in that for spraying the washing water. The method of claim 6, Washing apparatus for spraying the washing water to the rear of the drum as the injection port is connected to the passage extending in the inner direction of the drum. The method of claim 3, Washing device, characterized in that the flow path connected to each of the injection port is formed in a direction corresponding to each drop position. The method of claim 8, The spray nozzle is a washing machine, characterized in that the surface on which the respective injection port is formed to form a slope with the front surface of the drum. The method of claim 2, The spray nozzle comprises a flow path that gradually widens in the running direction of the washing water, the washing apparatus characterized in that the washing water passing through the spray nozzle is sprayed while spreading in the width direction. The method of claim 10, The spray nozzle is characterized in that for forming a flow path gradually thinner in the width direction along the traveling direction. The method according to claim 10 or 11, wherein The spray nozzle is characterized in that the washing device is characterized in that the washing hole is formed to be long and narrow in the width direction is sprayed by the high water pressure washing water is sprayed. The method of claim 12, The jet nozzle comprises a guide rib for guiding the running direction of the washing water so that the washing water passing through the flow path in the width direction. The method of claim 12, Washing water is sprayed toward the lower end of the drum at one end of the injection port, the washing nozzle is characterized in that the spray nozzle is installed obliquely in the drum direction so that the washing water is injected to the rear of the lower end of the drum. The method of claim 2, The spray nozzle comprises a plurality of spray units for spraying the washing water, the spray unit is installed in different positions, characterized in that for spraying the washing water to different drop position along the longitudinal direction of the drum Laundry machine.

Images