KR102493157B1 - Dish Washer - Google Patents

Abstract

The present invention relates to a dishwasher.
A dishwasher according to the present invention includes a cabinet having an outer shape and one side being opened; a door opening and closing the open front of the cabinet; a tub disposed inside the cabinet and forming a space in which dishes are washed; a dispenser disposed on one side of the door and supplying detergent into the tub; and a spray arm having a height adjusted up and down and having a plurality of spray nozzles disposed thereon for spraying washing water into the tub. and a rack disposed above the spray arm to form a space in which dishes are placed, and among the plurality of spray nozzles, a dispenser spraying washing water into the dispenser in each height section in which the spray arm is adjusted up and down. A spray nozzle is included.

Description

Dishwasher {Dish Washer}

The present invention relates to a dishwasher, and more particularly, to a dishwasher including a spray arm for spraying washing water into a dispenser.

A dishwasher is a device for washing dishes disposed inside a tub using washing water, and can remove dirt from dishes using washing water in which washing detergent is dissolved.

Detergent used to wash dishes is temporarily stored in a dispenser. In this washing step, when the dispenser is opened and the washing detergent inside is discharged into the tub, it can be dissolved in the circulating washing water to wash dishes. However, when using a detergent in the form of powder, even if the dispenser is opened, some of the detergent may remain inside the dispenser. Problems may arise if this is not done.

Unlike washing machines, dishwashers do not supply washing water to the inside of the dispenser, so detergent remaining inside the dispenser may frequently occur, and such remaining detergent may contaminate the inside of the dispenser.

In addition, a tablet detergent may be used to wash dishes placed inside the dishwasher. In the tablet detergent, the dissolution range of the tablet detergent varies according to the dish washing process, and washing and rinsing may be performed according to the corresponding process. When using such a tablet detergent, there may be no residual detergent left in the dispenser, but if the tablet detergent falls to the bottom of the tub, depending on where the tablet detergent falls, the tablet detergent takes more time than the time required for each stroke. However, there is a problem in that it dissolves slowly and proper dishwashing cannot be performed. The background technology of the present invention is disclosed in Korean Patent Publication No. 10-2014-0136692 (2014.12.01.)

A first problem to be solved by the present invention is to provide a dishwasher capable of keeping the inside of a dispenser clean.

In order to solve the above first problem, the dishwasher according to the present invention may include a spray nozzle for spraying washing water into a dispenser. However, in the case of the spray nozzle, since the direction in which the washing water is sprayed is fixed, a spray arm whose height is adjusted up and down may require a plurality of spray nozzles for spraying the washing water to the dispenser according to the height adjustment range of the spray arm. In this case, the number of spray nozzles spraying to the dishes is reduced, resulting in a decrease in dishwashing efficiency disposed inside the tub. Accordingly, a second problem to be solved by the present invention is to provide a dishwasher capable of washing dishes by minimizing the number of spray nozzles sprayed into a dispenser, thereby maintaining the washing ability.

In addition, in order to solve the first problem, even if the dispenser is provided with a spray nozzle for spraying washing water, when the washing water sprayed toward the dispenser does not reach the inside of the dispenser due to dishes mounted on the rack, the first problem is achieved An impossible problem arises. Accordingly, a third problem to be solved by the present invention is to provide a dishwasher having a structure in which washing water sprayed toward a dispenser is not disturbed by dishes mounted therein.

A fourth problem to be solved by the present invention is to provide a dishwasher capable of maintaining a constant dissolution rate of the tablet detergent when using the tablet detergent.

The tasks of the present invention are not limited to the tasks mentioned above, and other tasks not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the first and second objects, a dishwasher according to the present invention includes a cabinet having an outer shape and one side being opened; a door opening and closing the open front of the cabinet; a tub disposed inside the cabinet and forming a space in which dishes are washed; a dispenser disposed on one side of the door and supplying detergent into the tub; and a spray arm having a height adjusted up and down and having a plurality of spray nozzles disposed thereon for spraying washing water into the tub. and a rack disposed above the spray arm to form a space in which dishes are placed, and among the plurality of spray nozzles, a dispenser spraying washing water into the dispenser in each height section in which the spray arm is adjusted up and down. Since the spray nozzle is included, the washing water sprayed from the dispenser spray nozzle can be sprayed into the dispenser even when the height of the spray arm is adjusted.

Each of the spray nozzles includes a nozzle protrusion protruding upward from the spray arm; and an inclined surface on which a cutting surface is formed at one side of the nozzle protrusion and a spray hole through which washing water is sprayed is formed, so that washing water can be sprayed from the spray hole formed on the inclined surface.

The dispenser spray nozzle has a long hole-shaped spray hole formed long in the vertical direction based on the inclined surface, and a plurality of spray nozzles excluding the dispenser spray nozzle are formed long in the left and right directions based on the inclined surface. Since the ball-shaped spray hole is formed, the washing water sprayed from the dispenser spray nozzle can be sprayed widely in the vertical direction.

The size of the spray hole formed in the dispenser spray nozzle is the same as the size of the spray hole formed in the plurality of spray nozzles excluding the dispenser spray nozzle, so that the spray pressure of the washing water between the dispenser spray nozzle and other spray nozzles is the same. can

In order to solve the third problem, when the washing water sprayed from the dispenser spray nozzle is supplied into the dispenser, dishes are placed in a space other than the direction of the washing water sprayed from the dispenser spray nozzle. Arranged inside the rack. It is possible to prevent dishes from being placed in a range where the washing water is sprayed into the dispenser.

The rack may include a plurality of first wires extending in front and rear directions in which the door is disposed; a second wire disposed in a direction perpendicular to the plurality of first wires and crossing the first wire; And a rim portion further connecting upper ends of the first wire and the second wire that are bent and extended upward, and the inner wire is formed on the bottom surface of the rack or one side of the second wire. It extends from the edge toward the edge, and it is possible to prevent dishes from being placed in a range where the washing water is sprayed into the dispenser.

The inner wire extends in a straight line form from one side of the first wire or the second wire toward the edge portion, and a virtual extension line extending along the shape in which the inner wire is formed is higher than the upper end or upper end of the opening formed in the dispenser. It is formed to face a high position, and it is possible to prevent dishes from being placed in a range where washing water is sprayed into the dispenser.

The inner wire may include a vertical wire bent vertically upward from the first wire or the second wire formed on the bottom surface of the upper rack and extending; It includes a horizontal wire that is bent and extended from the end of the vertical wire in a forward direction, and a virtual extension line extending through the lower end of the vertical wire and the outer end of the horizontal wire is the upper end or upper end of the opening formed in the dispenser It is formed to face a higher position, so that dishes can be prevented from being placed in a range where washing water is sprayed into the dispenser.

The dispenser spray nozzle is disposed below the portion where the inner wire is formed, and it is possible to prevent dishes from being placed in a range where the washing water is sprayed by the dispenser.

In order to solve the fourth problem, when using a tablet detergent by further including a detergent basket detachably disposed on one side of the rack, it is possible to provide a space in which the tablet detergent can be properly dissolved.

The detergent basket has a basket shape with one side opened, and includes a fastening hook fastening the detergent basket to one side of the rack, so that when using a tablet detergent, a space in which the tablet detergent can be properly dissolved can be provided. there is.

A plurality of opening holes are formed on a circumferential surface or a lower surface of the detergent basket, so that washing water sprayed from a spray nozzle may flow into the detergent basket.

A dishwasher according to the present invention includes a cabinet having an outer shape and one side being opened; a door opening and closing the open front of the cabinet; a tub disposed inside the cabinet and forming a space in which dishes are washed; a dispenser disposed on one side of the door and supplying detergent into the tub; a spray arm whose height is adjusted up and down inside the tub and sprays washing water into the tub; a plurality of dish spray nozzles disposed on the upper surface of the spray arm and formed with left and right long hole-shaped dish spray holes to spray washing water toward the dishes; and a dispenser spray nozzle disposed on an upper surface of the spray arm and having a vertically long hole-shaped dispenser spray hole to spray washing water into the dispenser, wherein the dispenser spray nozzle sprays even when the height of the spray arm is adjusted. Washing water may be sprayed into the dispenser.

Details of other embodiments are included in the detailed description and drawings.

According to the dishwasher of the present invention, one or more of the following effects are provided.

First, the dishwasher according to the present invention includes a spray nozzle for spraying washing water into the dispenser, thereby maintaining cleanliness inside the dispenser and using an appropriate amount of detergent during dish washing.

Second, the dishwasher according to the present invention includes one spray nozzle for spraying washing water to the dispenser in the entire height-adjusted range in the spray arm whose height is adjusted up and down, and the number of spray nozzles sprayed to dishes can be maintained. there is. Accordingly, there is an advantage in that the inside of the dispenser can be washed and at the same time the dishwashing performance mounted on the tub can be maintained at a certain level or higher.

Third, in the dishwasher according to the present invention, an inner wire is formed inside the rack to prevent washing water sprayed into the dispenser from obstructing the spray path by dishes mounted on the rack, thereby reducing the amount or arrangement of dishes mounted on the rack. Regardless, there is also an advantage in that the inside of the dispenser can be kept clean and the dishwashing performance can be maintained.

Fourth, the dishwasher according to the present invention includes a detergent basket detachably disposed on one side of the rack. Therefore, in the case of using tablet detergent, there is also an advantage in that dishwashing performance can be improved by separately binding the detergent basket to the rack to keep the dissolution rate of the tablet detergent constant.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view of a dishwasher with a door opened according to one embodiment of the present invention.
2 is a schematic front cross-sectional view of a dishwasher according to one embodiment of the present invention.
3 is a view showing a dispenser according to an embodiment of the present invention.
4 is a plan view of an upper sandstone according to an embodiment of the present invention.
5A is a view illustrating a dish spray nozzle according to an embodiment of the present invention.
5B is a view showing a dispenser injection nozzle according to an embodiment of the present invention.
6A is a view for explaining a shape of a spray hole of a dish spray nozzle according to an embodiment of the present invention.
6B is a view for explaining a shape of a spray hole of a dispenser spray nozzle according to an embodiment of the present invention.
7A is a view for explaining a spray range of washing water sprayed from a dispenser spray nozzle according to an embodiment of the present invention.
7B is a diagram for explaining a spray range of washing water sprayed from a dish spray nozzle according to an embodiment of the present invention.
8A is a view for explaining the arrangement of upper sandstone at a first height according to an embodiment of the present invention.
8B is a view for explaining the arrangement of upper sandstone at a second height according to an embodiment of the present invention.
8C is a view for explaining the arrangement of upper sandstone at a third height according to an embodiment of the present invention.
Figure 9a is a view for explaining the upper rack on which the inner wire is formed according to an embodiment of the present invention.
Figure 9b is a view for explaining the upper rack on which the inner wire is formed according to another embodiment of the present invention.
10 is a perspective view of a detergent basket according to an embodiment of the present invention.
11 is a view showing a dishwasher in which a detergent basket according to an embodiment of the present invention is disposed.

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments make the disclosure of the present invention complete, and common knowledge in the art to which the present invention belongs. It is provided to completely inform the person who has the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numbers designate like elements throughout the specification.

Expressions referring to directions such as “front (F) / back (R) / left (Le) / right (Ri) / up (U) / down (D)” mentioned below are shown in FIGS. 8a, 8b, 8c, 10, 11 are defined as shown, but this is only for explanation so that the present invention can be clearly understood, and each direction may be defined differently depending on where the reference is placed. Of course there is.

In addition, expressions indicating directions such as "front (F')/back (R')/left (Le')/right (Ri') shown in FIG. 4 may vary as the upper sandstone 100 is rotated. This is for the convenience of the invention, and each direction can also be defined differently depending on where the reference is placed.

In addition, expressions indicating directions such as "front (F'') / back (R'') / left (Le'') / right (Ri'') shown in FIG. 6 are the inclined surface (114a, 114b), which is also intended to explain the present invention so that it can be clearly understood.

Hereinafter, dishwashers according to embodiments of the present invention will be described with reference to drawings.

<Regarding dishwasher configuration>

1 is a perspective view of a dishwasher with a door opened according to one embodiment of the present invention. 2 is a schematic front cross-sectional view of a dishwasher according to one embodiment of the present invention.

Hereinafter, the overall structure of the dishwasher according to the present embodiment will be described with reference to FIGS. 1 and 2 .

The dishwasher 10 according to the present embodiment has a cabinet 20 forming an exterior and opening the front (F), a door 22 coupled to the cabinet 20 to open and close the inside of the cabinet 20, and a cabinet ( 20) It includes a tub 24 installed inside and processing dishes disposed therein. The cabinet 20 and the tub 24 have open front surfaces where the door 22 is disposed.

The dishwasher 10 according to the present embodiment may include a dispenser 120 that stores detergent input by a user and injects the detergent into the tub 24 in a washing step. The dispenser 120 may be disposed on the inner surface 22a of the door 22 .

The cabinet 20 according to this embodiment forms an outer shape, and one side may be opened.

The tub 24 forms a space in which dishes are disposed in order to wash dishes. An air guide hole (not shown) may be formed on one side of the tub 24 according to the present embodiment to reduce the pressure by discharging air to the outside when pressure increases inside.

The dishwasher 10 according to the present embodiment includes racks 32 and 140 for accommodating dishes in the tub 24, a spray module for spraying washing water toward dishes accommodated in the racks 32 and 140, and the spraying module. It includes a sump 26 for supplying washing water to the module and a washing pump 50 for pumping the washing water stored in the sump 26 to the injection module.

In the dishwasher 10 according to the present embodiment, racks 32 and 140 are provided inside the tub 24 to accommodate washing objects such as dishes. In this embodiment, the dishwasher 10 may include at least one or more racks 32 and 140 . The racks 32 and 140 according to the present embodiment include a lower rack 32 disposed below the tub 24 and an upper rack 140 disposed above the lower rack 32 .

The spraying module according to the present embodiment may include a spraying arm disposed below the rack to spray washing water toward dishes accommodated in the rack, and a supply pipe supplying washing water to the spraying arm. In addition, the spray module may further include a top nozzle 34 for spraying washing water from the top of the tub 24 toward the racks 32 and 140 disposed below. The spray arm according to the present embodiment is disposed on the lower side (D) of the upper rack 140, and the upper sand rock 100 sprays the washing water in the direction of the upper rack 140 and the washing water in the direction of the lower rack 32. It can be divided into the lower part sandstone 38 to be sprayed.

The dishwasher 10 according to this embodiment may include at least one spray arm and a top nozzle 34 . The dishwasher 10 according to the present embodiment is provided inside the tub 24 to wash the washing objects stored in the lower rack 32 and the lower sandstone 38 and the washing objects stored in the upper rack 140. It includes an upper sandstone 100 for washing and a top nozzle 34 located at the top of the tub 24 and spraying washing water.

The supply pipe according to the present embodiment supplies the washing water supplied from the washing pump 50 to the spray arms 38 and 100 and the top nozzle 34.

The supply pipe according to the present embodiment includes a lower supply pipe 42 for supplying washing water to the lower sandstone 38 and an upper supply pipe 44 for supplying washing water to the upper sandstone 100 and the top nozzle 34. .

The upper supply pipe 44 according to the present embodiment supplies the washing water supplied to the washing pump 50 to the top nozzle 34. The dishwasher according to the present embodiment may further include a branch pipe 46 branching from the upper supply pipe 44 to supply washing water to the upper sandstone 100 . The branch pipe 46 according to this embodiment is connected from one side of the upper supply pipe 44. The branch pipe 46 according to this embodiment is connected to the upper supply pipe 44 so as to be adjustable in height. The branch pipe 46 according to the present embodiment is disposed on the lower side of the upper rack 140 .

The branch pipe 46 has a height spaced apart from the upper surface of the tub 24 together with the upper rack 140 and/or the upper sandstone 100 according to the type or amount of dishes disposed on the upper rack 140. can be regulated. The branch pipe 46 according to the present embodiment is connected to the upper supply pipe 44 through the branch pipe connection part 47.

The branch pipe 46 is connected at one end to the upper supply pipe 44 and height-adjustable. The branch pipe 46 according to the present embodiment can be adjusted in height in three steps.

The top nozzle 34 is disposed at a higher position than the upper rack 140 . The top nozzle 34 is disposed above the tub 24 . The top nozzle 34 receives washing water from the upper supply pipe 44 and sprays the washing water to the upper rack 140 and the lower rack 32 .

The dishwasher 10 further includes a washing motor 52 that drives the washing pump 50, and the washing motor 52 may use a brushless direct current motor (BLDC motor) capable of controlling rotation speed. Since the washing motor 52 is a BLDC motor, it is possible to set a target revolution per minute (RPM). When the RPM of the BLDC motor changes, the pressure force of the washing pump 50 changes.

The dishwasher 10 according to the present embodiment includes a water supply module 60 for supplying water to a sump 26 or a spray module, a drainage module 62 connected to the sump 26 and discharging washing water to the outside, and a sump ( 26) may further include a filter module 70 installed to filter the washing water and a washing water heating module 56 installed to the sump 26 to heat the washing water.

The dishwasher 10 according to the present embodiment includes a flow path switching unit 40 that supplies washing water stored in the sump 26 to the upper supply pipe 44 and/or the lower supply pipe 42 .

The flow path switching unit 40 according to the present embodiment may include a flow path switching motor (not shown) generating rotational force and a rotating plate (not shown) that rotates by the flow path switching motor to control the flow of washing water. The rotating plate according to the present embodiment may selectively open and close a plurality of connectors (not shown) formed where a plurality of supply pipes are branched off. A plurality of switching holes (not shown) may be formed in the rotating plate. The rotating plate is rotated step by step by a changeover motor. When the rotating plate is rotated by the flow change motor, a plurality of switching holes formed in the rotating plate are located at a position corresponding to at least one of the plurality of connectors, and the washing water flowing from the washing pump 50 flows through the plurality of spray arms 38 and 100. and the top nozzle 34 may be sprayed toward at least one.

Washing water discharged from the sump 26 through the washing pump 50 passes through the pump pipe 48 and moves to the flow path switching unit 40 . The flow path switching unit 40 may supply washing water introduced from the sump to at least one pipe among the plurality of spray arms 38 and 100 and the top nozzle 34 .

The upper part sandstone 100 may be located on the lower side (D) of the upper rack 140 . The upper sandstone 100 is preferably rotatably coupled to the branch pipe 46 so that it can be rotated by the repulsive force of the washing water when the washing water is sprayed.

The water supply module 60 is configured to receive water from the outside and supply it to the sump 26 , and open and close the water supply valve 65 to supply water from the outside to the inside of the sump 36 . In this embodiment, water is supplied to the sump 26 via the filter module 70. The drain module 62 is for discharging the washing water stored in the sump 26 to the outside and is composed of a drain pipe 64 and a drain pump 66.

The filter module 70 is for filtering out foreign substances such as food debris included in the washing water and is disposed on a flow path of the washing water flowing from the tub 24 to the sump 26 .

To this end, a filter mounting portion 72 in which the filter module 70 is installed may be formed in the sump 26 , and a filter passage connecting the filter mounting portion and the inside of the sump 26 may be disposed.

The dishwasher according to the present embodiment may include a water level sensor for detecting a water level in the tub. The water level sensor according to the present embodiment may include a floater (not shown) for detecting the water level in the tub 24 mounted therein, and a water level detection sensor (not shown) for detecting the water level by detecting the rising height of the plotter. can

The dishwasher according to the present embodiment may further include an input unit (not shown) for receiving commands from the user and a display unit (not shown) for displaying a progress state of the dishwasher or a notification to the user. The input unit may use a touch input method or a button input method, and a display unit or a warning lamp may be used.

3 is a view showing a dispenser according to an embodiment of the present invention. 4 is a plan view of an upper sandstone according to an embodiment of the present invention. 5A is a view illustrating a dish spray nozzle according to an embodiment of the present invention. 5B is a view showing a dispenser injection nozzle according to an embodiment of the present invention. 6A is a view for explaining a shape of a spray hole of a dish spray nozzle according to an embodiment of the present invention. 6B is a view for explaining a shape of a spray hole of a dispenser spray nozzle according to an embodiment of the present invention. 7A is a view for explaining a spray range of washing water sprayed from a dispenser spray nozzle according to an embodiment of the present invention. 7B is a diagram for explaining a spray range of washing water sprayed from a dish spray nozzle according to an embodiment of the present invention. 8A is a view for explaining the arrangement of upper sandstone at a first height according to an embodiment of the present invention. 8B is a view for explaining the arrangement of upper sandstone at a second height according to an embodiment of the present invention. 8C is a view for explaining the arrangement of upper sandstone at a third height according to an embodiment of the present invention. Figure 9a is a view for explaining the upper rack on which the inner wire is formed according to an embodiment of the present invention. Figure 9b is a view for explaining the upper rack on which the inner wire is formed according to another embodiment of the present invention.

Hereinafter, a dispenser according to an embodiment of the present invention, a spray arm, a rack, and a relationship between them will be described with reference to FIGS. 3 to 9B.

<Dispenser>

The dispenser 120 according to this embodiment forms a space for temporarily storing detergent. The dispenser 120 according to this embodiment may be disposed on the inner surface 22a of the door 22 . The dispenser 120 according to this embodiment may be disposed above the upper sandstone 100 .

The dispenser 120 may include a case 122 forming an exterior. The case 122 protrudes from the inner surface 22a of the door 22 . A chamber 124 may be formed concavely inside the case 122 to temporarily accommodate detergent. An opening 126 opening from the chamber 124 toward the inside of the tub 24 may be formed on one side of the case 122 .

The chamber 124 formed inside the dispenser 120 may communicate with the inside of the tub 24 through the opening 126 opened toward the inside of the tub 24 . The dispenser 120 may further include a dispenser cover 128 that opens and closes the opening 126 . The opening 126 of the dispenser cover 128 may be closed in the preliminary washing step of removing dirt from dishes without detergent, and the opening 126 may be opened in the main washing step of washing dishes with detergent.

When the dispenser cover 128 is opened, detergent temporarily stored in the chamber 124 may flow into the tub 24 through the opening 126 .

The space formed by the chamber 124 according to the present embodiment may be formed so that the lower surface 134 is inclined downward toward the open opening 126 so that the detergent is easily discharged. The opening 126 according to the present embodiment may be formed in a size that allows washing water sprayed from a spray arm whose position changes vertically to flow into the chamber 124 .

The dispenser 120 may further include a rinse supply unit 130 for selectively supplying rinse to one side.

The rinse supply unit 130 according to the present embodiment provides a space for temporarily storing the rinse aid therein, and one side thereof may be opened so that the rinse aid is supplied into the tub 24 . In addition, the rinse supply unit 130 may further include a rinse supply unit cover 132 that opens and closes the open portion.

<Blast Rock>

The spray arms 38 and 100 according to the present embodiment include a plurality of spray nozzles 110 having spray holes 101a for spraying washing water into the tub 24 . Hereinafter, the upper sandstone 100 according to the present embodiment will be described with reference to FIGS. 4 to 8C. However, the configuration and arrangement of the upper sandstone 100 described below may also be applied to the lower sandstone 38.

The upper sandstone 100 according to the present embodiment includes a plurality of spray nozzles 110 having spray holes 116 through which washing water is sprayed. Referring to FIG. 4 , the upper sandstone 100 according to the present embodiment includes 16 injection nozzles. 16 injection nozzles 100 may be disposed, respectively, 8 in the left direction (Le') and 8 in the right direction (Ri') based on the center of the upper sandstone 100. In addition, 8 of the 16 injection nozzles 100 may be disposed in the front (F') and 8 in the rear (R') based on the center of the upper sandstone 100, respectively. The angles of the spray holes formed in each of the 16 spray nozzles may be formed to be different from each other.

The injection nozzle 110 according to the present embodiment protrudes upward from the upper surface 102 of the upper sandstone 100. The injection nozzle 110 according to the present embodiment protrudes obliquely upward from the upper surface 102 of the upper sandstone 100. Spray directions of washing water sprayed from each of the plurality of spray nozzles 110 according to the present embodiment may be formed to be different from each other.

The upper sandstone 100 according to the present embodiment may be rotatably connected to the branch pipe 46 . Therefore, when the washing water is sprayed from the plurality of spray nozzles 110 disposed on the upper sandstone 100, the upper sandstone 100 rotates to spray the washing water to various parts of the tableware disposed inside the tub 24. can do.

Spray holes 116 formed in each of the plurality of spray nozzles 110 according to the present embodiment are formed to spray washing water in different directions. Each of the plurality of spray nozzles 110 according to the present embodiment has a nozzle protrusion 112 protruding upward from the upper sandstone, a spray hole 116 forming a cut surface at one side of the nozzle protrusion 112, and spraying washing water It includes an inclined surface 114 formed thereon.

The nozzle protrusion 112 according to the present embodiment protrudes upward from the upper surface 102 of the upper sandstone 100. The nozzle protrusion 112 according to this embodiment protrudes in a substantially hemispherical shape, and a cut surface is formed to form an inclined surface 114 at one side of the upper portion.

The spray nozzle 110 according to the present embodiment may spray washing water in the direction toward which the inclined surface 114 faces. The spray hole 116 according to the present embodiment is formed substantially perpendicular to the inclined surface 114 .

The inclined surface 114 according to the present embodiment may form a surface substantially perpendicular to the direction in which the washing water is sprayed. The inclined surface 114 according to this embodiment is formed on one side of the nozzle protrusion 112 . Directions of the inclined surfaces formed on each of the plurality of injection nozzles 110 may be different from each other.

The spray holes 116 formed on the inclined surfaces 114 of the plurality of spray nozzles 110 according to the present embodiment may have an elliptical shape. The spray holes 116 formed on the inclined surfaces 114 of the plurality of spray nozzles 110 according to the present embodiment may have a long hole-like shape formed long in both directions. The injection holes 116 formed in the plurality of injection nozzles 110 according to the present embodiment are based on the inclined surface 114, in the vertical direction (U''-D'', see FIG. 6) or in the left and right direction (Le' '-Ri'', see FIG. 6) may have a long hole-like shape formed long. The long hole-shaped spray hole 116 according to the present embodiment increases the spray range of the washing water.

The plurality of spray nozzles 110 according to the present embodiment include a dispenser spray nozzle 102 that sprays washing water toward the opening 126 of the dispenser and a dish spray that sprays washing water toward dishes mounted on the upper rack 140. A nozzle 104 is included.

The spray nozzle 110 according to the present embodiment includes an outer spray nozzle 106 disposed at an outer end of the upper sandstone. The outer spray nozzle 106 according to the present embodiment may constitute a part of the dish spray nozzle 104 . The dispenser injection nozzle 110a according to this embodiment is distinguished from the outside injection nozzle 110c. The outer spray nozzle 110c has a very short distance from the dispenser 120 or is formed in an overlapping range, so it may not be easy to spray the washing water into the opening 126 . The dispenser injection nozzle 110a according to this embodiment is disposed inside the outer injection nozzle 110c.

Referring to FIG. 5A, the dish spray nozzle 110b according to the present embodiment protrudes upward from the upper sandstone, has a nozzle protrusion 112b having a spray hole through which washing water is sprayed, and an upper portion of the nozzle protrusion 112b. It forms a surface substantially perpendicular to the direction in which the washing water is sprayed and includes an inclined surface 114b having a dish spraying hole 116b formed in the center. The dish spraying hole 116b formed in the dish spraying nozzle 110b has a long hole shape with left and right wide widths based on the inclined surface 114b.

Referring to FIG. 5B, the dispenser spray nozzle 110a according to the present embodiment protrudes upward from the upper sandstone, has a nozzle protrusion 112a formed with a spray hole through which washing water is sprayed, and an upper portion of the nozzle protrusion 112a. It forms a surface substantially perpendicular to the direction in which the washing water is sprayed and includes an inclined surface 114a in which a dispenser spray hole 116a is formed at the center. The dispenser injection hole 116a formed in the dispenser injection nozzle 110a has a long hole-shaped shape with long upper and lower widths based on the inclined surface 114a.

The dispenser injection nozzle 102 according to the present embodiment is formed with a dispenser injection hole 116a that sprays widely in the vertical direction. The dispenser injection hole 116a according to the present embodiment may have a long hole-shaped shape extending in the vertical direction.

Areas formed by the dispenser spray hole 116a and the dish spray hole 116b are substantially the same. However, the dish spraying hole 116b has a long hole-shaped shape with a long left and right width based on the inclined surface 114, and the dispenser spraying hole 116a has a vertical direction based on the inclined surface 114. It may have a long hole-shaped shape.

Referring to FIG. 6A , the dish spraying hole 116b according to the present embodiment is formed long in the left and right directions (Ri''-Le'') so as to be sprayed in a wide range toward dishes mounted on the upper rack 140. It may have a ball shape. Referring to FIG. 6B, the dispenser spray hole 116a according to the present embodiment has an inclined surface so that washing water sprayed from the upper sandstone 100 whose height is adjusted in the vertical direction is sprayed to the opening 126 of the dispenser 120. Based on (114), it may have a long hole-shaped shape formed long in the vertical direction (U''-D'')

The dispenser spray nozzle 110a according to the present embodiment sprays the sprayed washing water widely in the vertical direction by the dispenser spray hole 116a formed long vertically. Referring to FIGS. 7A and 7B , the spraying range of the dispenser spray nozzle 110a in the vertical direction according to the present embodiment is wider than the spraying range of the dish spray nozzle 110b in the vertical direction. The spraying range of the dispenser spray nozzle 110a in the vertical direction according to the present embodiment may be formed to be twice or more larger than the spraying range of the dish spray nozzle 110b in the vertical direction.

The position of the upper sandstone 100 according to the present embodiment may be changed vertically (U-D). The height of the upper sandstone 100 according to the present embodiment can be adjusted up and down (U-D). The height of the upper sandstone rock 100 according to the present embodiment can be adjusted up and down (U-D) as the branch pipe 46 connected to the upper supply pipe 44 in a height-adjustable manner moves up and down. As the position of the upper sandstone 100 according to this embodiment is changed according to the height adjustment, the distance away from the dispenser 120 may be formed differently.

The upper sandstone 100 according to the present embodiment can move up and down inside the tub 24 together with the upper rack 140 disposed thereon.

Referring to FIGS. 8A to 8C , the height of the upper sandstone 100 according to the present embodiment can be adjusted in three steps. As the height of the upper sandstone 100 according to the present embodiment is adjusted in three stages, the distance away from the dispenser 120 may vary in three stages.

8A to 8C, the upper sandstone 100 according to the present embodiment has a first height H1 located at the closest distance from the dispenser 120 and a second height H1 located at the farthest distance from the dispenser 120. The height can be adjusted in three steps: 2 heights H2 and a third height H3 positioned at a distance between the first height H1 and the second height H2. The upper sandstone 100 according to the present embodiment has a dispenser spray nozzle 102 for spraying washing water to the opening of the dispenser 120 at each of the first height H1, the second height H2, and the third height H3 ) can be installed.

As the upper sandstone 100 according to the present embodiment moves in the order of the first height H1 , the third height H3 , and the second height H2 , the distance from the dispenser 120 increases.

In the dispenser spray nozzle 102 according to the present embodiment, since the spraying range of the washing water is formed vertically, the first height H1, the second height H2, and the third height H3 of the upper sandstone 100 ), the washing water may be sprayed into the opening 126 of the dispenser 120 at any one height.

<Upper rack>

The dishwasher 10 according to the present embodiment is disposed in a space inside the tub 24 and includes a rack on which dishes are placed. In the dishwasher 10 according to the present embodiment, the upper rack 140 is disposed on the upper side (U) of the inner space of the tub 24, and the lower rack 32 is disposed on the lower side (D) of the inner space of the tub 24. ).

Hereinafter, the structure and arrangement of the upper rack 140 disposed above the upper sandstone 100 according to the present embodiment will be described with reference to FIGS. 9A to 9B. However, the configuration and shape of the upper rack described below may also be applied to the configuration and shape of the lower rack.

The upper rack 140 according to this embodiment is disposed on the upper side of the upper sandstone 100. The upper rack 140 according to the present embodiment may be spaced apart from the opening 126 of the dispenser 120 at a predetermined interval.

The upper rack 140 according to this embodiment may have a basket shape capable of holding a plurality of tableware. The upper rack 140 according to the present embodiment may be composed of a plurality of wires so that the washing water sprayed from the upper sandstone 100 disposed on the lower side can pass therethrough.

The upper rack 140 according to the present embodiment includes a plurality of first wires 142 extending in the front-back direction in which the door 22 is disposed, and a plurality of second wires extending in the left-right direction of the inner space of the tub 24. (144). In the upper rack 140 according to the present embodiment, a plurality of first wires 142 and a plurality of second wires 144 may cross each other to form a basket shape.

Some of the plurality of first wires 142 and the plurality of second wires 144 according to the present embodiment may be bent at both ends and extended upward. The remaining portions of the plurality of first wires 142 and the plurality of second wires 144 according to the present embodiment may be formed only on the bottom surface without being bent upward.

An upper end of the upper rack 140 further includes an edge portion 146 connecting the upper ends of the first wire 142 and the second wire 144 extending upward. The edge portion 146 according to this embodiment connects and fixes the upper ends of the plurality of first wires 142 and the plurality of second wires 144 .

The upper rack 140 according to the present embodiment includes an inner wire 148 preventing dishes from being placed in the direction of washing water sprayed from the dispenser spray nozzle 110a. In the upper rack 140 according to the present embodiment, when the washing water sprayed from the dispenser spray nozzle 110a is supplied to the inside of the dispenser 120, dishes are disposed in a space other than the direction of the washing water sprayed from the dispenser spray nozzle 110a. It includes an inner wire 148 disposed inside the upper rack 140 so as to be mounted.

The inner wire 148 according to this embodiment is disposed on the front side of the upper rack 140. The inner wire 148 prevents dishes from being placed in the direction of the washing water sprayed from the dispenser spray nozzle 110a. The inner wire 148 is disposed in the inner direction of the upper rack 140 formed in a basket shape.

Referring to Figure 9a, the inner wire 148 according to an embodiment of the present invention is disposed in the front at a predetermined interval from the front end of the portion forming the bottom surface of the upper rack 140 to the rear (R) It may be disposed to extend toward the rim portion 146 .

A portion of the inner wire 148 according to this embodiment starting from the first wire 142 or the second wire 144 may be an upper side of the dispenser spray nozzle 110a. The dispenser injection nozzle 110a according to this embodiment may be disposed below the inner wire 148.

The inner wire 148 may form an inclined angle so as to extend from the upper side of the dispenser spray nozzle 110a toward the edge portion 146. A virtual extension line (X1-X1') extending from the inner wire 148 according to the present embodiment is approximately the opening of the dispenser 120 at a position where the upper sand arm 100 is maximally spaced apart from the dispenser 120 It may be formed to face the top or a position higher than the top of. The virtual extension line (X1-X1') extending from the inner wire 148 according to the present embodiment is approximately the dispenser at the position of the second height (H2) where the upper sand arm 100 is spaced apart from the dispenser 120 It may be formed to face the top of the opening of 120 or a position higher than the top.

Referring to FIG. 9B, the inner wire 148' according to another embodiment of the present invention may be arranged to extend upward from a position spaced apart at a predetermined interval from the front of the portion forming the bottom surface of the upper rack 140. there is.

The inner wire 148' according to this embodiment is a vertical wire 148a extending by being bent vertically upward from the first wire 142 or the second wire 144 formed on the bottom surface of the upper rack 140 and It may include a horizontal wire (148b) bent forward from the end of the vertical wire (148a) and extending.

The virtual extension line (X2-X2') extending through the lower end of the vertical wire 148a of the inner wire 148' according to the present embodiment and the outer end of the horizontal wire 148b is an upper part sandstone ( 100) may be formed to face the upper end of the opening of the dispenser 120 at a position maximally spaced apart from the dispenser 120 . The vertical wire 148a may be formed on the upper side of the dispenser spray nozzle 110a. The dispenser injection nozzle 110a according to this embodiment may be disposed below the inner wire 148'. The virtual extension lines (X1-X1' and X2-X2') in each of FIGS. 9A to 9B extend through the upper and lower ends of the inner wires 148 and 148', and the upper end or upper end of the opening formed in the dispenser It can be formed to face a higher position.

<Detergent basket>

10 is a perspective view of a detergent basket according to an embodiment of the present invention. 11 is a view showing a dishwasher in which a detergent basket according to an embodiment of the present invention is disposed.

Hereinafter, the detergent basket 160 according to the present embodiment will be described with reference to FIGS. 10 and 11 .

The dishwasher 10 according to the present embodiment may further include a detergent basket 160 that accommodates tablet detergent and is detachably disposed on one side of the rack.

The detergent basket 160 according to this embodiment has a hollow inside and a basket shape with an open top. Detergent basket 160 according to this embodiment has a basket shape with one side opened so as to accommodate tablet detergent and the like. The detergent basket 160 according to this embodiment has a plurality of opening holes 168 on the circumferential surface 162 and the lower surface 164 so that the washing water sprayed to the spray arms 38 and 100 can flow into the inside. is formed

The detergent basket 160 according to the present embodiment may have a shape of a square pillar having a hollow interior and an open top U. However, the shape of the detergent basket 160 may also be formed in a cylindrical shape or a polygonal column shape within a range capable of accommodating the tablet detergent.

Detergent basket 160 according to this embodiment may be formed of a circumferential surface and a lower surface. In the detergent basket 160 according to the present embodiment, washing water scattered inside the tub 24 flows in from both side surfaces 162b and rear surface 162c except for the front surface 162a disposed opposite to the door 22 among the circumferential surfaces. To be able to, a plurality of opening holes 168 may be formed. In the detergent basket 160 according to the present embodiment, a plurality of opening holes 168 may be formed in the lower surface 164 as well.

The detergent basket 160 according to this embodiment further includes a fastening hook 166 fastening the detergent basket 160 to one side of the racks 32 and 140. Fastening hook 166 according to this embodiment may be formed to protrude from the rear surface (162c) of the detergent basket (160) to the rear (R). The fastening hook 166 according to this embodiment protrudes from the rear surface 162c of the detergent basket 160 and may have a downward (D) bent shape at the rear end.

Detergent basket 160 according to this embodiment may be fastened to one side of the racks 32 and 140 by fastening hooks 166. Referring to FIG. 11 , the detergent basket 160 according to this embodiment may be fastened to the front of the edge portion 146 of the upper rack 140 .

Although the preferred embodiments of the present invention have been shown and described above, the present invention is not limited to the specific embodiments described above, and in the technical field to which the present invention belongs without departing from the gist of the present invention claimed in the claims. Various modifications and implementations are possible by those skilled in the art, and these modifications should not be individually understood from the technical spirit or perspective of the present invention.

10: dishwasher 20: cabinet
22: door 24: tub
100: upper sandstone 110: injection nozzle
112: nozzle protrusion 114: inclined surface
116: injection hole 110a: dispenser injection nozzle
116a: dispenser spray hole 110b: dish spray nozzle
120: dispenser 122: case
126: opening 140: upper rack
142: first wire 144: second wire
148: inner wire 160: detergent basket

Claims (14)

A cabinet forming an outer shape and having one side opened;
a door opening and closing the open front of the cabinet;
a tub disposed inside the cabinet and forming a space in which dishes are washed;
a dispenser disposed on one side of the door and supplying detergent into the tub; and
a spray arm whose height is adjusted vertically and a plurality of spray nozzles for spraying washing water into the tub; and
A rack disposed above the spray arm and forming a space in which dishes are placed;
Among the plurality of spray nozzles, a dispenser spray nozzle for spraying washing water into the dispenser in each height section in which the spray arm is adjusted up and down is included,
The rack is:
a plurality of first wires extending in the front-back direction in which the door is disposed and bent at both ends to extend upward;
a second wire disposed in a direction perpendicular to the plurality of first wires, crossing the first wire, and bent at both ends to extend upward;
an edge portion further connecting upper ends of the first wire and the second wire; and
Including an inner wire extending from one side of the first wire or the second wire formed on the bottom surface of the rack toward the edge portion,
The dispenser injection nozzle is disposed below the inner wire,
The dishwasher of claim 1 , wherein a virtual extension line extending past the upper and lower ends of the inner wire is formed toward an upper end of the opening formed in the dispenser or a position higher than the upper end. According to claim 1,
Each of the injection nozzles,
a nozzle protrusion protruding upward from the spray arm; and
A dishwasher comprising an inclined surface formed with a cut surface at one side of the nozzle protrusion and a spray hole through which washing water is sprayed. According to claim 2,
The dishwasher of claim 1 , wherein the dispenser spray nozzle has a long hole-shaped spray hole formed long in an up-and-down direction based on the inclined surface. According to claim 3,
The dishwasher of claim 1 , wherein the plurality of spray nozzles, except for the dispenser spray nozzle, have long-hole spray holes formed long in left and right directions with respect to the inclined surface. According to claim 4,
The size of the spray hole formed in the dispenser spray nozzle is the same as the size of the spray hole formed in the plurality of spray nozzles excluding the dispenser spray nozzle. According to claim 1,
The inner wire is disposed inside the rack so that dishes are placed in a space other than the direction of the washing water sprayed from the dispenser spray nozzle when the washing water sprayed from the dispenser spray nozzle is supplied into the dispenser. Dishwasher. delete delete According to claim 1,
The inner wire,
a vertical wire bent vertically upward from the first wire or the second wire formed on the bottom surface of the rack and extending;
It includes a horizontal wire that is bent and extended in a forward direction from an end of the vertical wire,
A virtual extension line passing through the lower end of the vertical wire and the outer end of the horizontal wire is formed toward an upper end of the opening formed in the dispenser or higher than the upper end of the dishwasher. delete According to claim 1,
The dishwasher further comprising a detergent basket detachably disposed on one side of the rack. According to claim 11,
The dishwasher of claim 1 , wherein the detergent basket has a basket shape with one surface opened, and includes a fastening hook fastening the detergent basket to one side of the rack. According to claim 11,
A dishwasher having a plurality of opening holes formed on a circumferential surface or a lower surface of the detergent basket. A cabinet forming an outer shape and having one side opened;
a door opening and closing the open front of the cabinet;
a tub disposed inside the cabinet and forming a space in which dishes are washed;
a dispenser disposed on one side of the door and supplying detergent into the tub; and
A spray arm whose height is adjusted vertically inside the tub and sprays washing water into the tub;
The blast rock,
a plurality of dish spray nozzles disposed on an upper surface of the spray arm and having dish spray holes for spraying washing water toward dishes;
A dispenser spray nozzle disposed on an upper surface of the spray arm and having a dispenser spray hole for spraying washing water into the dispenser;
Each of the dish spray nozzle and the dispenser spray nozzle includes a nozzle protrusion protruding upward from an upper surface of the spray arm and forming an inclined surface at one side,
The dish spraying hole has a long hole-like shape elongated in the left and right directions on the inclined surface of the nozzle protrusion,
The dishwasher of claim 1 , wherein the dispenser spray hole has a long hole-like shape elongated in a vertical direction from an inclined surface of the nozzle protrusion.

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