KR101637355B1 - Dishwasher - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher, and more particularly, to a dishwasher in which such a changeable restraining state is effectively prevented when a nozzle to which washing water is sprayed is changed.
According to the present invention, there is provided a dishwasher having a channel control valve for selectively directing wash water from a main channel to an upper channel or a lower channel, wherein the channel control valve includes a first opening The second opening, and the upper or lower flow path, and is protruded from at least one of the upper wall and the lower wall to selectively block the upper or lower flow path together with the clogged portion. The dishwasher being characterized in that it includes a blocking rib provided therein.

Description

Dishwasher {Dishwasher}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher, and more particularly, to a dishwasher in which such a changeable restraining state is effectively prevented when a nozzle to which washing water is sprayed is changed.

In general, a dishwasher is a machine that automatically cleans a tableware. The dishwasher performs functions such as washing, rinsing, drying and storing dishes. So, by helping to reduce housework, the penetration rate has increased significantly in recent years.

The washing method of the dishwasher is largely divided into a shower type and an ultrasonic type, and the shower type is mainly used at home. In the shower type, hot water containing detergent dissolved in dishware contained in a dish basket is strongly blown and cleaned. The method of blowing water is a method of blowing with a propeller and a method of rotating a pipe by pouring a lot of holes into the pipe.

Referring to FIG. 1, the important components of a conventional dishwasher will be briefly described below.

Conventionally, the dishwasher includes a water collecting part 1 for collecting washing water, a power generating part 2 for driving the water collecting part, upper and lower nozzles 3 and 4 through which the washing water introduced from the water collecting part 1 is sprayed, .

The main collecting part (1) is provided with a main collecting part (1a) for receiving water for washing dishes from the outside or collecting and discharging contaminated water after washing the dishes. A flow path forming part 1b having a flow path for moving washing water circulated in the dishwasher to the upper and lower nozzles is provided in the upper part of the main collecting part 1a. The flow path forming part 1b is connected to a filtering part 1c for filtering the washing water to remove dirt. The power generating unit (2) operates the pump to supply washing water to the upper and lower nozzles (3,4) when washing dishes.

The upper and lower nozzles (3, 4) drop the contaminants attached to the contaminated tableware by spraying the washing water supplied from the water collecting part (1) to clean the tableware.

Hereinafter, the operation of the conventional dishwasher will be described in detail.

First, the tableware to be washed is placed in the basket and the user inputs the desired administration. Then, the main water collecting portion 1a of the dishwasher is filled with the washing water at a predetermined level by the water supply valve connected to the outside of the dishwasher. Then, the heater is driven to heat the water supply water, and the pump is operated. Then, the heated washing water is moved to the upper and lower nozzles (3,4) through the connecting pipe by the pump to remove dirt adhering to the surface of the dish.

After the dishwashing, the dirt and washing water separated from the tableware are collected in the main collecting part. At this time, the degree of contamination of the washing water is measured, and when the degree of contamination is higher than a predetermined level, the washing water mixed with the dirt is discharged through the drain pump and the clean water is supplied from the outside. However, when the degree of contamination is below a certain level, the washing water collected in the main collecting part is cleaned and then moved to the upper and lower nozzles by the pump again. After the washing is completed, the washing water collected in the main collecting part is discharged to the outside together with the dirt.

Generally, the flow path forming portion 1b includes a flow path control valve. The flow control valve serves to selectively guide the washing water in the main reservoir portion 1a to the upper nozzle 3 or the lower nozzle 4. [ The flow path forming portion 1b includes a housing defining a flow path, and the flow path control valve is provided inside the housing.

Hereinafter, a conventional flow control valve will be described with reference to FIGS. 2 to 6. FIG.

Figs. 2 and 3 show an example of a housing that forms the aforementioned flow path, and Fig. 4 to Fig. 6 show a conventional flow path control valve.

The flow path forming portion 1b includes a flow path housing, which may include a lower housing 200 and an upper housing 300. Fig. 2 shows the upper surface of the lower housing 200, and Fig. 3 shows the lower surface of the upper housing 300. Fig. Therefore, the lower surface of the upper housing is coupled to the upper surface of the lower housing to form a flow path. The flow path includes main flow paths 211 and 311 communicating with the main flow collecting portion 1a, upper flow paths 213 and 313 communicating with the upper nozzle 3 and upper flow paths 212 and 312 communicating with the lower nozzle 4 ).

The lower housing 200 and the upper housing 300 are respectively provided with seat portions 250 and 350 in which a flow control valve 50 (see Figs. 3 to 5) are respectively positioned. A through hole 220 is formed at the center of the seating part 250 of the lower housing 200 to allow the passage control valve 50 to be rotatably supported. In the seating part 350 of the upper housing 300, (Not shown). Therefore, the flow control valve 50 is rotatably supported between the seating portions 250 and 350. [

Here, if the lower housing 200 and the upper housing 300 constitute a flow path housing, the seating parts 250 and 350 may be referred to as a seating part formed inside the flow path housing. That is, it may be referred to as a seat portion for seating the flow control valve 50.

Meanwhile, the seating portions 250 and 350 are formed in a cylindrical shape corresponding to the shape of the flow control valve 50, and the side portions are opened to form the flow paths. The seat portion 250 is brought into contact with the lower wall of the flow control valve 50 as described later, and the seating portion 350 is brought into contact with the upper wall of the flow control valve 50.

4 to 6, the conventional flow control valve 50 is formed in a cylindrical shape and includes an upper wall 51, a side wall 53, and a lower wall 52. The side wall 53 is formed to cover only a part of the space between the upper wall 51 and the lower wall 52. A first opening 54 and a second opening 55 are formed on a side surface of the flow control valve 50. A partition wall (not shown) is formed between the first opening 54 and the second opening 55, and the partition wall is formed to face the side wall 53.

A projection 56 'is formed at the center of the upper wall 51 to be inserted into the groove 320 of the upper housing. A shaft 56 is formed at the center of the lower wall 52, A groove 57 is formed to be connected to a driving unit for rotating the flow control valve 50. The shaft 56 is inserted into the through hole 220 of the lower housing 200.

The upper wall 51 and the lower wall 52 are formed in a circular shape, and the side wall and the partition wall are formed like the outer diameter of the upper wall and the lower wall.

The flow control valve 50 is rotated by the seating portions 250 and 350, and the flow path is changed according to the position.

At the position where the side wall 58 blocks the flow paths 213 and 313, the washing water of the catching portion 1a flows into the lower nozzle 4 through the second opening 55 through the first opening 54, The washing water is supplied. In the position where the side walls 53 block the flow paths 212 and 312, the washing water of the catching portion 1a flows into the upper nozzle 3 through the first opening 54 through the second opening 55, The washing water is supplied. A vertical wall 58 is formed in the radial direction of the side wall to reduce the inner passage resistance of the passage control valve 50. Therefore, an empty space is formed between the side wall 53 and the vertical wall 58 as shown in FIG.

However, the conventional dishwasher has the following problems.

The washing water contains a large amount of small foreign matter that can not be filtered by the filtering part, so that the smooth movement of the washing water may be hindered. For example, sand grains having a diameter of 2 mm or less can be introduced into the dishwasher in large quantities, and broken glass fragments may be present inside the dishwasher. These foreign substances are not easily broken because they are strong in hardness.

The upper and lower walls 51 and 52 of the conventional flow control valve are in surface contact with the upper and lower surfaces of the seating parts 250 and 350, respectively. Therefore, there is a lot of room for foreign matter to flow into the surface contact portion and to restrict rotation of the flow control valve.

In addition, the side wall 53 and the partition wall 52 make surface contact with the side surface of the seat portion. Therefore, foreign matter may flow into the surface contact portion and the rotation of the flow control valve may be restricted.

Further, the side surfaces 59 of the upper wall 51 and the lower wall 52 also come in contact with the side surface of the seat portion.

That is, in the conventional flow control valve, the upper wall 51 and the lower wall 52 are in contact with the upper surface and the lower surface of the seat portion, and the side wall 53 and the partition wall 52 and the side surface 59 of the upper wall and the lower wall And comes into contact with the side surface of the seat portion. Therefore, since the contact area is very large, the possibility of restraint is very high.

This problem can be more easily generated because the flow control valve is symmetrical to the center of rotation to some extent. This is because the center of rotation is shifted when a foreign substance is put on a part. Therefore, the flow control valve presses the seat portion on the opposite side of the portion where the foreign matter is stuck, which makes the rotation more difficult.

Therefore, in the conventional case, there is a possibility that a foreign matter is caught between the seating portions 250 and 350 and the flow control valve 50, thereby restricting rotation of the flow control valve. This may cause the problem that the upper or lower nozzles are constrained to supply the cleaning water to only one nozzle, although the cleaning water should be provided alternately to the upper or lower nozzles.

If the washing water can not be sprayed by the nozzle set according to the stroke of the dishwasher, the dishwashing can not be smoothly performed and the user may be dissatisfied with the product function.

Korean Patent Application No. 10-2008-0013915 discloses a control method for preventing restraint of a flow control valve. However, through this control method, it is possible to prevent the restriction of the flow control valve to some extent, but it can not be said to solve the fundamental problem.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a dishwasher capable of effectively preventing a restraining state from being changed when a nozzle through which washing water is sprayed is changed.

In order to achieve the above object, the present invention provides a dishwasher having a flow control valve for selectively directing wash water from a main flow path to an upper flow path or a lower flow path, wherein the flow path control valve Provided is a dishwasher which significantly reduces the contact area.

The flow control valve includes an upper wall or a lower wall, and the upper and lower walls may be provided with a blocking rib. The blocking rib may be provided to selectively open and close the upper flow path or the lower flow path between the upper wall or the lower wall and the seating portion.

The flow control valve may be provided with a clog to selectively block the first opening, the second opening, and the upper flow passage or the lower flow passage between the upper wall and the lower wall along the circumferential direction. The clogged portion selectively blocks the upper flow path or the lower flow path inside the flow path control valve. Therefore, the blocking ribs together with the clogged portion are provided to selectively block the upper flow path or the lower flow path.

Here, the blocking rib is provided to be in contact with a lower surface or an upper surface of the seat portion. Therefore, the upper wall and the lower wall are prevented from directly contacting the lower surface or the upper surface. Therefore, the contact area can be remarkably reduced.

Wherein a side surface of the flow control valve is divided into a first opening portion, a second opening portion, and a clogging portion along a circumferential direction, and the side surface of the flow control valve is provided with the first opening portion and the second opening portion between the upper wall and the lower wall A partition wall may be provided.

Here, the blocking rib may be provided at a position corresponding to the partition wall.

The outer diameter of the upper wall and the lower wall corresponding to the first opening and the second opening may be smaller than the outer diameter of the upper wall and the lower wall corresponding to the clogged portion. Therefore, the area of contact between the side surface of the upper wall and the lower wall and the side surface of the seating portion can be remarkably reduced.

The upper wall and the lower wall may be formed in a circular shape partially cut in a tangential direction, and the clogged portion may include a vertical wall provided in the cut portion of the upper wall and the lower wall. And the clogs may include side walls provided on both sides of the vertical wall. That is, a space is preferably formed between the side wall and the side wall. This is to significantly reduce the contact area between the side wall and the side of the seat.

The outer diameter of the upper wall and the lower wall corresponding to the side wall is preferably larger than the outer diameter of the upper wall and the lower wall corresponding to the first opening and the second opening.

The blocking rib may include a radial rib formed in a radial direction and a circumferential rib formed in a circumferential direction. And the radius ribs may include a pair of ribs having angles of 110 to 130 degrees with respect to each other.

In order to achieve the above-mentioned object, the present invention also provides an air conditioner comprising: a main housing; And a flow control valve rotatably installed in the seat portion of the flow path housing and guiding the wash water flowing into the main flow path to either the upper flow path or the lower flow path, A closure part is provided between the lower walls to selectively block the first opening, the second opening and the upper channel or the lower channel along the circumferential direction, and is protruded from at least one of the upper wall and the lower wall, And a blocking rib provided to selectively block the upper flow path or the lower flow path.

The blocking rib may be provided to selectively block the upper passage or the lower passage between the upper wall and the lower surface of the seating portion, or between the lower wall and the lower surface of the seating portion.

The clogged portion may include an upright wall that selectively blocks the upper flow path or the lower flow path from the inside of the flow path control valve. And the clogged portion includes a side wall selectively blocking the upper flow path or the lower flow path from the outside of the flow path control valve. That is, the side wall may be provided to selectively block the upper or lower flow path between the outside of the flow control valve and the side surface of the seating portion.

Preferably, the side walls are provided on both sides of the vertical wall, and the outer diameter of the side wall is larger than the outer diameter of the upper wall and the lower wall corresponding to the first opening and the second opening.

In order to achieve the above-mentioned object, the present invention also provides an air conditioner comprising: a main housing; And a flow control valve that is rotatably installed in the seat portion of the flow path housing and guides the wash water flowing into the main flow path to either the upper flow path or the lower flow path, A vertical wall configured to selectively block the upper flow path or the lower flow path; A first opening and a second opening provided to allow the inflow of the washing water and the inflow of the washing water into the inside; And a side wall formed on both sides of the vertical wall with an outer diameter larger than the outer diameter of the first and second openings so as to selectively block the upper flow path or the lower flow path between the outside of the flow control valve and the side surface of the seating portion The dishwasher according to the present invention can be provided with a dishwasher.

And a blocking rib formed to selectively block the upper flow path or the lower flow path between the outside of the flow control valve and the upper surface or the lower surface of the seating portion.

INDUSTRIAL APPLICABILITY According to the present invention, the washing water can be smoothly sprayed to the upper or lower nozzle of the dishwasher, and the desired dishwashing effect can be obtained.

It is also possible to provide a dishwasher in which restraint of the flow control valve is effectively prevented and reliability and user satisfaction are improved.

1 is a block diagram of a conventional dishwasher;
FIG. 2 is a perspective view illustrating a portion of a lower housing of a flow-path housing having a flow-path control valve therein. FIG.
3 is a perspective view showing a part of the upper housing of the flow path housing;
FIGS. 4 to 6 show a conventional flow control valve; FIG.
7 to 10 are views showing an embodiment of a flow control valve of a dishwasher according to the present invention.

Best Mode for Carrying Out the Invention Hereinafter, preferred embodiments of the present invention capable of realizing the above object will be described with reference to the accompanying drawings.

The same constituent elements as those in the prior art are denoted by the same names and the same symbols for the sake of convenience of description and a detailed description thereof will be omitted. The flowhouses 200 and 300 shown in FIGS. 3 and 4 are applicable to the present embodiment have.

As described above, the conventional flow control valve has a problem that the area of contact with the flow control valve at the upper surface 330, the lower surface 250, and the side surfaces 230 and 330 of the seat portion is very wide. This is considered to be essential for preventing the flow path from being formed outside the flow control valve of the flow control valve 50. That is, the gap between the flow path control valve and the seat portion is very narrow, and the flow path must be formed in order to form the flow path at this interval.

In order to solve this problem, it is possible to reduce the contact area between the flow control valve and the upper surface and / or the lower surface of the seat portion, and reduce the contact area between the flow control valve and the seat portion independently or in combination with this embodiment Can be presented.

FIGS. 7 to 10 illustrate a flow control valve in which all of these embodiments are collectively included, and will be described in detail with reference to the drawings.

The illustrated flow control valve 60 is provided to guide the washing water from the main flow path selectively to the upper flow path or the lower flow path.

The flow control valve 60 includes a top wall 61 and a bottom wall 62. A flow path is formed between the top wall 61 and the bottom wall 62, For this, a first opening 64, a second opening 65 and a clogged portion 63 are provided along the circumferential direction between the upper wall 61 and the lower wall 62.

3, when the first opening 64 communicates with the main flow path 211, the second opening 65 communicates with the lower flow path 212. The clogged portion 63 closes the upper flow path 213. Therefore, the washing water is supplied to the lower flow path from the main flow path. Then, the flow control valve 60 can be rotated clockwise. In this case, the second opening 65 is communicated with the main flow passage 211, and the first opening 64 is communicated with the upper flow passage 213. The clogged portion 63 closes the lower flow path 212. Therefore, the washing water is supplied to the upper flow path from the main flow path. As the flow control valve 60 rotates, the flow path of the wash water is changed.

The first opening 64 and the second opening 65 are configured such that the washing water flows into the flow control valve 60 and is discharged. The clogged portion 63 is configured to prevent the washing water flowing into the flow control valve 60 through the first opening 64 or the second opening 65 from being discharged through an unwanted flow path.

A partition wall 63 'for partitioning the first opening 64 and the second opening 65 may be provided between the first opening 64 and the second opening 65. The partition wall can function to support between the upper wall 61 and the lower wall 62.

Preferably, the upper ribs 71 and 72 are provided on the upper surface of the upper wall 61. The blocking ribs 71 and 72 protrude upward so as to be in contact with the upper surface 350 of the seating part. Therefore, due to the blocking ribs, a distance corresponding to the height of the blocking ribs is formed between the upper surface 350 of the seating portion and the upper surface of the upper wall 61. Therefore, even if sand or glass fragments, which may flow into the dishwasher, flow into the space between the upper wall and the seating portion, they are not caught. In addition, it is possible to cause foreign matter or the like that has been introduced together with the washing water to be discharged together with the rotation of the blocking rib.

In addition, the blocking ribs 71 and 72 can significantly reduce the area in which the upper wall 61 and the upper surface 350 of the seat portion are in direct contact with each other. Therefore, the friction area can be minimized and the restraint of the flow control valve can be remarkably reduced.

As the distance between the upper wall 61 and the upper surface 350 of the seating part becomes larger due to the blocking ribs 71 and 72, the washing water can be introduced at this interval. Accordingly, the blocking ribs 71 and 72 may be provided to prevent unwanted washing water from being introduced through the gap.

To this end, the blocking rib may comprise a radial rib 72. The radial ribs 72 may extend radially from the center of the top wall 61. The radial ribs 72 are preferably configured to extend to an outermost radial extent of the top wall since the radial ribs 72 are configured to prevent wash water from entering the top wall 61.

On the other hand, a projection 66 'is formed in the center of the upper wall 61 to be inserted into the groove 320 of the seating part. Accordingly, the radius ribs 72 extend radially in the protrusion 66 ', and the protrusion height thereof is preferably lower than the protrusion 66'.

The blocking rib may include a circumferential rib 71. The circumferential rib 71 may be formed to surround the protrusion 66 '. The circumferential rib has a function of preventing the rotation center from being twisted.

When the circumferential rib 72 is provided, the radius rib 72 may extend in the radial direction of the circumferential rib. The height of the protrusion is preferably equal to the protrusion height of the circumferential rib.

It is preferable that a plurality of the blocking ribs are provided. This is so that the blocking ribs, as well as the areas defined by the above-described openings 64, 65 and the clogged portion 63, also correspond to the regions.

Only the blocking ribs formed so as to partition only the upper surface region of the upper wall corresponding to the clogged portion 63 are shown in Fig. However, the blocking rib may be further provided to partition the first opening 64 and the second opening 65 in the upper surface of the upper wall corresponding to the partition wall 63 '. However, since the flow path is formed between the first opening portion 64 and the second opening portion 65 in any case, it is not necessary to partition the upper surface of the upper wall portion. This is to further reduce the contact area between the upper wall 71 and the upper surface 330 of the seat portion.

Accordingly, the blocking ribs, particularly the radial ribs 72, may be formed on both sides of the center of the clogged portion 63, respectively. And, the angle of the radial ribs 72 may be approximately 110 degrees to 130 degrees, which may be set differently depending on the angle between the respective flow paths.

Here, the clogged portion 63 may include a vertical wall provided between the upper wall 61 and the lower wall 62. At this time, the upper wall 61 and the lower wall 62 may be formed in a circular shape in which a part of the upper wall 61 and the lower wall 62 are cut in a tangential direction, and the vertical wall is provided to cover the cut portion. Therefore, in the flow control valve 60, the flow path in the direction of the vertical wall is blocked due to the vertical wall.

In Fig. 7, a shaft 73 constituting the central axis of the flow control valve 60 is shown, and a blocking rib provided on the upper wall is shown. However, the present invention is not limited thereto. As shown in FIG. 9, the upper and lower walls may have blocking ribs, and the structure and operation thereof may be the same. Likewise, as shown in FIG. 10, the blocking rib may be provided only on the lower wall.

The following are summarized as follows.

The flow control valve is provided with a clogged portion 63 for selectively blocking the upper flow path or the lower flow path. The clogged portion acts to shut off the inside of the flow control valve. In the above-described embodiment, a gap is formed between the upper surface of the upper wall 61 and the lower surface 350 of the seating portion. Therefore, a blocking rib is provided to selectively block the upper flow path and the lower flow path at this interval. As a result, in the inside of the flow control valve, the blocking rib and the blocking rib selectively block the upper flow path and the lower flow path from the outside of the flow control valve.

Here, the blocking rib may selectively block the upper flow path and the lower flow path from above or below the flow control valve.

An embodiment in which the friction area between the side surface of the flow path control valve and the side surfaces 230 and 330 of the seat portion can be reduced, in addition to the above-described embodiment.

As described above, the conventional passage control valve has a very large area in contact with the side surface of the passage control valve and the side surface of the seat portion. In order to remarkably reduce the contact area, the upper wall 61 and the lower wall 61 corresponding to the first and second openings 64 and 64, respectively, The outer diameter of the wall 62 is made different from each other.

8 and 10, the outer diameters of the upper wall 61 and the lower wall 62 corresponding to the clogged portions are indicated by dotted lines. Therefore, it can be seen that the outer diameter is larger than the other portions. The upper wall 61 and the lower wall 62 corresponding to the clogged portion are connected to each other through the side wall 69. As a result, it can be said that the outer diameter of the side wall 69 is larger than the outer diameter corresponding to the first opening 64, the second opening 65 and the partition wall 73.

The outer diameter of the side wall 69 is determined so as to be in contact with the side surfaces 230 and 330 of the seating portion. Therefore, only the portion of the side wall 69 comes into contact with the side surface of the seat portion on the entire side surface of the passage control valve 60. As a result, the contact area between the side surface of the flow control valve and the side surface of the seat portion can be remarkably reduced.

Meanwhile, the side wall 69 may be formed over the entire position corresponding to the clogged portion 63. However, in this case, the area in contact with the side surface of the seat portion can be increased. For this, the side wall 69 may be formed to extend only at a predetermined angle in the circumferential direction on both sides of the clogged portion 63. Therefore, a space is formed between the side wall 69 and the side wall 69, so that the area of contact with the side surface of the seating part can be significantly reduced.

Of course, the outer diameter of the partition wall 63 'may be the same as the outer diameter of the side wall. In this case, the partition wall 63 'prevents the first opening and the second opening from communicating with each other from the lateral side of the flow path valve.

However, in this case, as in the case of the above-described blocking rib, the contact area between the flow control valve and the seat portion is widened without a large effect. This is because the first opening 64 and the second opening 65 should always be in communication with each other. Therefore, it is not necessary to prevent the communication with the outside of the flow control valve while widening the contact area. In this case, the partition wall 63 'is simply a wall reinforcing the rigidity between the upper wall 61 and the lower wall 62.

10, a shaft 66 inserted into the through hole 220 formed at the center of the seating part 250 is formed at a central portion of the lower wall 62. As shown in FIG. A connection groove 67 is formed in the shaft 66 to be connected to a motor for driving the flow control valve.

The following are summarized as follows.

In this embodiment, similarly, it includes the upper wall 61 and the lower wall 62, and the first opening, the second opening, and the clogged portion are formed along the side surface of the flow control valve. The outer diameter of the upper wall and the lower wall varies depending on the area in order to minimize an area in which the side surface of the flow control valve and the side surface of the seating portion contact.

At least the outer diameter of the upper wall and the lower wall corresponding to the first opening and the second opening is smaller than the outer diameter of the upper wall and the lower wall corresponding to the clogged portion 63. Here, a sidewall is formed between the upper wall and the lower wall corresponding to the clogged portion. Such a sidewall prevents the passage from being formed at a distance between the side surface of the flow control valve and the side surface of the seating portion.

That is, the clogged portion 63 selectively blocks the lower flow path or the upper flow path from the inside of the flow path control valve 60, and the side wall 69 prevents the lower flow path or the upper flow path from the side of the flow path control valve 60, As shown in FIG.

Therefore, the clogged portion 63 and the side wall 69 selectively block the lower flow path or the upper flow path together.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

60: flow control valve 61: upper wall
62: lower wall 63: clogged portion (vertical wall)
63 ': partition wall 64: first opening
65: second opening 69: side wall
71: Cylindrical rib 72: Radial rib

Claims (17)

A dishwasher having a flow control valve for selectively directing wash water from a main flow path to an upper flow path or a lower flow path,
The flow control valve includes:
A clogging portion is provided between the upper wall and the lower wall so as to selectively block the first opening, the second opening and the upper channel or the lower channel along the circumferential direction,
The upper wall or the lower wall being formed to be protruded from at least one of the upper wall and the lower wall to selectively block the upper flow path or the lower flow path together with the clogged portion, And a blocking rib that prevents water leakage between the surface and the lower wall. The method according to claim 1,
Wherein the side surface of the flow control valve is divided along the circumferential direction into a first opening, a second opening, and a clogged portion. 3. The method of claim 2,
And a partition wall separating the first opening and the second opening between the upper wall and the lower wall is provided on a side surface of the flow control valve. 3. The method of claim 2,
Wherein an outer diameter of the upper wall and the lower wall corresponding to the first opening and the second opening is smaller than an outer diameter of the upper wall and the lower wall corresponding to the clogged portion. The method according to claim 1,
Wherein the top wall and the bottom wall are formed in a circular shape partially cut in a tangential direction, and the clogged portion includes an upright wall provided in the cut-out portion of the top wall and the bottom wall. 6. The method of claim 5,
Wherein the clogs include sidewalls provided on both sides of the vertical wall, respectively. The method according to claim 6,
Wherein an outer diameter of the upper wall and the lower wall corresponding to the side wall is larger than an outer diameter of the upper wall and the lower wall corresponding to the first opening and the second opening. The method according to claim 1,
Wherein the blocking rib includes a radial rib formed in a radial direction and a circumferential rib formed in a circumferential direction. 9. The method of claim 8,
Wherein the radial ribs comprise a pair of ribs angled from 110 to 130 degrees with respect to each other. A main flow path, an upper flow path and a lower flow path; And
And a flow control valve that is rotatably installed in the seat portion of the flow path housing and guides the wash water flowing into the main flow path to either the upper flow path or the lower flow path,
The flow control valve includes:
A clogging portion is provided between the upper wall and the lower wall so as to selectively block the first opening, the second opening and the upper channel or the lower channel along the circumferential direction,
Wherein the upper wall or the lower flow path is protruded from at least one of the upper wall and the lower wall to selectively block the upper flow path or the lower flow path together with the clogged portion, And a blocking rib to prevent leakage between the lower wall and the lower wall. 11. The method of claim 10,
Wherein the blocking rib selectively blocks the upper channel or the lower channel between a lower surface of the upper wall and the seating surface, or between a lower surface of the seating wall and the lower surface of the seating surface. 12. The method of claim 11,
Wherein the clogged portion includes an upright wall selectively blocking the upper flow path or the lower flow path from the inside of the flow path control valve. 13. The method of claim 12,
Wherein the clogged portion includes side walls selectively blocking the upper flow path or the lower flow path from outside the flow path control valve. 14. The method of claim 13,
Wherein the side walls are provided on both sides of the vertical wall. 15. The method of claim 14,
Wherein an outer diameter of the side wall is larger than an outer diameter of the upper wall and the lower wall corresponding to the first opening and the second opening. delete delete

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