WO2022177171A1

WO2022177171A1 - Dishwasher

Info

Publication number: WO2022177171A1
Application number: PCT/KR2022/000764
Authority: WO
Inventors: 주병현; 정창윤; 김정혜
Original assignee: 엘지전자 주식회사
Priority date: 2021-02-17
Filing date: 2022-01-14
Publication date: 2022-08-25
Also published as: KR20220117664A

Abstract

The present invention relates to a dishwasher, and the dishwasher according to an embodiment of the present invention comprises: a washing tub in which an object to be washed is accommodated; a washing pump for squeezing out washing water; a spraying arm having a spray nozzle formed therein, which is connected to the washing pump and opened toward the inside of the washing tub; and a dispenser which is arranged on the upper side of the spraying arm and has a space in which detergent is injected. The dispenser comprises: a body forming the space; a cover which is arranged on the body to be movable and opens/closes the space; and a guide which protrudes from the cover so as to at least partially cross a spraying passage of the washing water through the spray nozzle, and thus, the washing water sprayed toward the wall surface of the washing tub is guided into the dispenser via the guide, and thus, there is an advantage of reducing noise.

Description

dish washer

The present invention relates to a dishwasher, and more particularly, to a guide for a dispenser.

Dishwasher is a device for removing foreign substances attached to the washing target by spraying washing water and steam to the washing target accommodated.

In the washing tank, a dispenser accommodating a jet arm to which the washing water is sprayed and a detergent dissolved in the washing water is disposed.

The spray arm includes a plurality of spray nozzles, and some of the plurality of spray nozzles spray the washing water toward the dispenser disposed on the wall surface of the washing tank.

However, the conventional dish washing machine has a problem in that the washing efficiency is lowered because the jet nozzle sprays washing water toward the dispenser rather than the washing target.

In addition, in the conventional dishwasher, as the spray arm is rotated and moved up and down, the washing water insignificantly hits the wall surface of the washing tub rather than the washing object and the dispenser, generating noise and excessive wasted amount. there was

SUMMARY OF THE INVENTION An object of the present invention is to provide a dishwasher in which generated noise is reduced.

Another object of the present invention is to provide a dishwasher in which the dissolution efficiency of detergent is increased.

Another object of the present invention is to provide a dishwasher in which the amount of wasted washing water is reduced.

Another object of the present invention is to provide a dishwasher with improved washing efficiency.

Another object of the present invention is to provide a dishwasher having a dispenser having a simple structure.

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

In order to achieve the above object, a dish washing machine according to an embodiment of the present invention includes a washing tub in which a washing object is accommodated; a washing pump for extruding washing water; a jet arm connected to the washing pump and having a jet nozzle opened toward the inside of the washing tank; and a dispenser disposed on the upper side of the spray arm, and having a space in which detergent is injected.

The dispenser may include: a body forming the space; a cover that is movably disposed on the body and opens and closes the space; and a guide protruding from the cover so that at least a part of the injection path of the washing water through the injection nozzle intersects.

The guide may extend obliquely toward the injection arm.

The lower boundary surface of the space may extend obliquely toward the spray arm.

The guide and the lower boundary surface of the space may extend obliquely toward the injection arm, and the angle at which the guide is inclined may be greater than the angle at which the lower boundary surface is inclined.

A width between the lower boundary surface of the space and the guide may increase toward the inside of the space.

The guide may protrude from the lower end of the cover toward the spray arm.

The jet arm may spray the washing water toward the washing target seated on the upper side of the jet arm, and the guide may guide a portion of the washing water sprayed from the jet arm into the space.

The dispenser may be spaced apart from the outer end of the spray arm in a radial direction.

The spray arm may be disposed to be movable up and down in the washing tank.

The cover may be disposed to be movable up and down, move upward to open the space, and move downward to close the space.

The dishwasher may further include a door for opening and closing the inside of the washing tub, and the dispenser may be disposed on an inner surface of the door.

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

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

First, there is an advantage in that noise is reduced by guiding the washing water sprayed toward the wall surface of the washing tank into the dispenser through the guide.

Second, there is an advantage in that the dissolution efficiency of the detergent is improved by guiding the washing water to be sprayed into the detergent disposed in the dispenser through the guide.

Third, there is also an advantage in that the amount of wasted washing water is reduced by guiding the washing water sprayed from the jet arm to be sprayed toward at least one of the washing target and the detergent.

Fourth, by controlling the direction of the washing water sprayed from the jet nozzle to reduce the number of jet nozzles for jetting the washing water toward the detergent, there is an advantage in that the washing efficiency is improved.

Fifth, by protruding the guide on the cover of the dispenser, there is also an advantage in that the structure of the dispenser is simplified.

The effects of the present invention are not limited to the above-mentioned effects, 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 according to an embodiment of the present invention.

2 is a longitudinal cross-sectional perspective view of a dishwasher according to an embodiment of the present invention.

3 is an internal structural diagram of a dishwasher with an open door according to an embodiment of the present invention.

4 is a perspective view of a dispenser according to an embodiment of the present invention.

5 is a front view of a dispenser according to an embodiment of the present invention.

6 is a longitudinal cross-sectional view of a dispenser according to an embodiment of the present invention.

7 is a view for explaining a relationship between a spray arm and a dispenser according to a conventional dishwasher.

8 is a view for explaining the relationship between the jet arm and the dispenser of the dishwasher according to the embodiment of the present invention.

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail 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 allow the disclosure of the present invention to be complete, and common knowledge in the technical field to which the present invention pertains It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

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

With reference to FIG. 1 , the overall appearance of the dishwasher 1 will be described first. 1 shows the overall appearance of the dishwasher 1 .

The dishwasher 1 includes a cabinet 10 having a washing tub 100 (refer to FIG. 2 ) for accommodating a washing object therein; and a door 20 disposed in front of the cabinet 10 .

The cabinet 10 may form the external shape of the dishwasher 1 and may have a quadrangular prism shape. The front of the cabinet 10 may be opened, and the object to be washed may be introduced into the washing tub 100 through the opened portion of the cabinet 10 .

The door 20 may open or close the opened portion of the cabinet 10 . The door 20 may close the opened portion to seal the washing tub 100 , and may open the opened portion to allow the washing tub 100 to communicate with the outside of the cabinet 10 .

The door 20 includes a door body 21 forming an outer shape of the door 20; a lower door 22 connected to the lower side of the door body 21; A link 23 connecting the door body 21 and the lower door 22 may be included.

The door body 21 may be moved forward with the link 23 as a rotation axis. The door body 21 may move forward with the link 23 as a rotation axis to open the opened portion of the cabinet 10 . When the door body 21 is moved forward to open the opened portion, the washing space 100S of the washing tub 100 may communicate with the outside of the cabinet 10 .

The lower door 22 may be fixed to the cabinet 10 . The lower door 22 may be fixed to the cabinet 10 even when the door body 21 is moved forward.

The link 23 may be rotatably connected to the lower door 22 . The link 23 may connect the door body 21 and the lower door 22 , and may rotate the door body 21 .

However, the door 20 may be configured as a single door body 21 without the lower door 22 and the link 23 . In this case, the door 20 may be rotated around the hinge 24 disposed inside the door 20 to communicate the washing space 100S with the outside or to seal the washing space 100S.

The dishwasher 1 may include a control panel 30 connected to the upper side of the door 20 . The control panel 30 may be a display that displays driving information of the dish washing machine 1 and can select an administrative course of the dish washing machine 1 . The control panel 30 may be connected to the door 20 to form a front surface of the door 20 . The control panel 30 may be connected to the door body 21 and move forward together with the door body 21 . The control panel 30 may be moved forward to open the opened portion of the cabinet 10 . When the control panel 30 is moved forward to open the opened portion, the cleaning space 100S may communicate with the outside of the cabinet 10 .

Hereinafter, an internal structure of the dishwasher 1 will be described with reference to FIG. 2 . FIG. 2 is a view showing the form in which the dishwasher 1 shown in FIG. 1 is cut in the vertical direction and viewed from the side.

In the washing tank 100, the washing object is accommodated, and washing water is sprayed. The washing tank 100 is disposed inside the cabinet 10 and forms a washing space 100S in which a washing object is accommodated.

A driving unit 200 for circulating the washing water is disposed under the washing tank 100 . The driving unit 200 may be disposed inside the cabinet 10 . The driving unit 200 forms a driving space 200S in which structures for circulation of washing water, which will be described later, are disposed.

In the washing tub 100, the upper rack 110 on which the object to be washed is seated, and the lower rack 120 on which the object to be washed is seated, which is disposed below the upper rack 110, may be arranged.

A plurality of

spray tubes

150 , 160 , 170 for spraying washing water toward the washing object seated on the upper rack 110 and the lower rack 120 may be disposed inside the washing tank 100 . The

injection tubes

150 , 160 , 170 may have a rod shape extending in the width direction of the

racks

110 and 120 , and may have a rotation shaft extending in the width direction of the

racks

110 and 120 . The injection tube (150, 160, 170), the rack (110, 120) and two types of frames arranged in parallel may be cross-shaped formed by crossing, may have a rotation shaft extending in the vertical direction.

The

injection tubes

150 , 160 , 170 may have a tube shape and be disposed on the lower side of the upper rack 110 or the lower side of the lower rack 120 . The

spray tubes

150 , 160 , and 170 may have a cross-shaped shape, and may be referred to as “spray arms”.

A plurality of injection tubes (150, 160, 170), and the lower injection tube 150 disposed on the lower side of the lower rack (120); An upper injection tube 160 disposed between the upper rack 110 and the lower rack 120 and; It may include a top spray tube 170 disposed on the upper side of the upper rack (110). The lower injection tube 150 and the upper injection tube 160 may be referred to as “jet arms”.

Each of the plurality of

spray tubes

150 , 160 , and 170 may receive washing water from the washing pump 220 . Inside the washing tank 100 , the first injection pipe 130 and the second injection pipe 140 extending from the driving unit 200 may be disposed.

The first injection pipe 130 may extend upwardly from the switching valve 240 , and may extend toward the upper injection tube 160 .

The second injection pipe 140 may extend upwardly from the switching valve 240 and may extend toward the top injection tube 170 .

The upper injection tube 160 may be connected to the first injection pipe 130 to receive washing water through the first injection pipe 130 . The top injection tube 170 may be connected to the second injection pipe 140 to receive washing water through the second injection pipe 140 .

However, the dishwasher 1 according to the embodiment of the present invention may not include the first injection pipe 130 and the second injection pipe 140, respectively, but only a single second injection pipe 140 . have. In this case, the upper injection tube 160 and the top injection tube 170 may be respectively connected to the second injection pipe 140 to receive washing water through the second injection pipe 140 . The washing water introduced into the second injection pipe 140 through the switching valve 240 may be distributed to the upper injection tube 160 and the top injection tube 170 , respectively.

The lower injection tube 150 may be connected to the switching valve 240 to receive washing water through the switching valve 240 .

The lower spray tube 150 may be rotatably disposed in the washing tub 100 , and may be rotated using an upper and lower shaft as a rotation axis to spray the washing water toward the lower portion of the lower rack 120 .

The lower injection tube 150 may include a plurality of lower injection nozzles 151 . The lower spray nozzle 151 may be opened toward the cleaning space 100s, and may spray the washing water toward the lower rack 120 .

The upper spray tube (spray arm) 160 may be rotatably disposed in the washing tub 100 , and may be rotated using an upper and lower axis as a rotation axis to spray washing water into the lower portion of the upper rack 110 .

The upper injection tube 160 may include a plurality of upper injection nozzles 161 . The upper injection nozzle 161 may be opened toward the washing space 100s, and may spray washing water toward the upper rack 110 and the dispenser 300 .

The lower injection nozzle 151 and the upper injection nozzle 161 may be referred to as “jet nozzles”.

The top spray tube 170 may be rotatably disposed on the upper side of the washing tub 100 , and may evenly spray the washing water toward the inside of the washing tub 100 .

Inside the washing tub 100 , a steam spray nozzle 180 for supplying steam into the washing tub 100 is disposed. The steam spray nozzle 180 may be disposed in front of the washing tank 100 adjacent to the door 20 . The steam injection nozzle 180 may be disposed to face the lower rack 120 .

The steam spray nozzle 180 may be connected to the washing pump 220 of the driving unit 200 to receive steam generated from the washing pump 220 .

The washing space 100S may be defined as a space in which a washing object, a plurality of

spray tubes

150 , 160 , 170 and the steam nozzle 180 are disposed, and the driving space 200S is the washing space 100S. It may be defined as a space for circulation of washing water formed on the lower side.

The driving unit 200 includes a sump 210 that collects the washing water sprayed toward the washing space 100S, a washing pump 220 that extrudes the washing water collected in the sump 210 toward the washing tub 100 , and washing A heater 230 connected to the pump 220 for heating the washing water flowing in the washing pump 220 , a switching valve 240 for distributing the washing water extruded from the washing pump 220 , and the sump 210 collect water A drain pump 250 for extruding the washed water out of the cabinet 10 may be included.

The sump 210 may include a filter 211 for filtering out foreign substances contained in the collected washing water.

The sump 210 may be connected to an external water source (not shown) through a water supply pipe 213 , and may receive washing water from an external water source (not shown). A water supply valve 214 for controlling the flow rate of washing water in the water supply pipe 213 may be disposed in the water supply pipe 213 .

The washing pump 220 may be connected to the sump 210 through the pump inlet pipe 223 . The washing water collected into the sump 210 may be introduced into the washing pump 220 through the pump inlet pipe 223 when the washing pump 220 is operated.

The heater 230 may heat the washing water introduced into the washing pump 220 to produce hot water or steam. The heater 230 may be disposed below the washing pump 220 , and may be manufactured integrally with the washing pump 220 .

The washing water in the hot water state heated by the washing pump 220 may be introduced into the switching valve 240 through the pump discharge pipe 234 . The washing water introduced into the switching valve 240 may be distributed to the injection arm 150 , the first distribution pipe 130 , and the second distribution pipe 140 . The switching valve 240 may selectively flow the introduced washing water to any one of the spray arm 150 , the first distribution pipe 130 , and the second distribution pipe 140 .

The washing water in the steam state heated by the washing pump 220 may flow to the steam nozzle 180 through the steam nozzle inlet pipe 183 . The steam nozzle 180 may be connected to the washing pump 220 through the steam nozzle inlet pipe 183 to receive steam from the washing pump 220 .

The drain pump 250 may be connected to a drain pipe 254 extending to the outside of the cabinet 10 . The washing water collected in the sump 210 may be extruded by the drain pump 250 and discharged to the outside of the cabinet 10 through the drain pipe 254 .

The spray arm 160 may spray the washing water toward the washing space 100s. The spray arm 160 is disposed to be rotatable about a rotational shaft extending vertically to evenly spray the washing water on the washing object and the dispenser 300 seated on the rack 110 .

The dishwasher 1 includes a dispenser 300 in which a space into which detergent is injected is formed. The dispenser 300 may be disposed on the upper side of the upper injection tube 160 . The dispenser 300 may be disposed on the inner surface of the door 20 .

The dishwasher 1 may include a controller 260 that controls movement of the cover 330 of the dispenser 300 , which will be described later. The controller 260 may control vertical movement of the cover 330 and may control opening and closing of the space 310s formed in the dispenser 300 .

The controller 260 may be disposed in the driving space 200s and may be electrically connected to the dispenser 300 .

Hereinafter, a relative arrangement position of the injection arm 160 and the dispenser 300 will be described with reference to FIG. 3 . 3 shows the inside of the washing tank 100 with the door 20 opened.

The upper injection tube 160 (the injection arm) may be disposed between the upper rack 110 and the lower rack 120 . The spray nozzle 161 of the spray arm 160 may be opened upward, and may spray the washing water to the upper rack 110 disposed on the upper side.

The injection arm 160 may receive the washing water from the first injection pipe 130 , and may receive the washing water from the second injection pipe 140 .

A plurality of ports (not shown) spaced up and down from each other may be formed in the second injection pipe 140 . The user may adjust the height of the spray arm 160 by changing the port (not shown) into which the spray arm 160 is inserted among the plurality of ports (not shown). When the height of the spray arm 160 is adjusted in the washing tub 100, the relative height between the spray arm 160 and the dispenser 300 may change, and the spray arm 160 and the dispenser 300 move in the vertical direction. The angle of separation can be changed.

The dispenser 300 may be disposed on the door 20 and may be fixed to the door 20 . The height of the door 20 may not change. The dispenser 300 may be disposed on the upper side of the spray arm 160 , and the spaced apart distance and angle from the spray arm 160 may change according to the vertical movement of the spray arm 160 .

Hereinafter, the overall structure of the dispenser 300 will be described with reference to FIGS. 4 and 5 . 4 shows the dispenser 300 in a state in which the space 310s is closed, and FIG. 5 shows the dispenser 300 in an open state in the space 310s.

The dispenser 300 includes a body 310 forming a space 310s into which detergent is injected, a connector 320 disposed at the rear of the body 310 and fixing the body 310 to the door 20, A cover 330 disposed to be movable up and down on the body 310 and opening and closing the space 310s, a rinse bottle 340 spaced apart from one side of the space 310s, and a path through which the cover 330 moves ( 350) may be included.

The body 310 may support the cover 330 and the rinse bottle 340 . The cover 330 and the rinse bottle 340 may be disposed inside the body 310 . The space 310s and the path 350 may be formed inside the body 310 . The body 310 may be provided with a stopper 311 for limiting the upward movement of the cover 330 . The stopper 311 may form an upper surface of the body 310 and may be in close contact with the cover 330 moving upward.

The connector 320 may be fixed to the rear surface of the body 310 . The connector 320 may connect the body 310 and the door 20 to each other, and may be disposed between the body 310 and the door 20 .

The cover 330 may be disposed on the path 350 to be movable up and down. The cover 330 may be moved upward to open the space 310s, and moved downward to close the space 310s.

The cover 330 includes a guide 331 protruding from the cover 330 so that at least a part of the injection path of the washing water through the injection nozzle 161 intersects, and a button for constraining and releasing the movement of the cover 330 ( 332 , a protector 333 that is moved upward to contact the stopper 311 , and a solenoid valve 334 electrically connected to the controller 260 and moving the cover 330 up and down.

The guide 331 may extend obliquely toward the injection arm 160 , and may extend obliquely downward. The guide 331 may protrude in a direction away from the space 310s.

The button 332 may be disposed to be movable forward and backward with respect to the body 310 . When the button 332 is pressed by an external force, the cover 330 may be in a movable state, and when the external force applied to the button 332 is released, the cover 330 may be fixed to the body 310 . The user may adjust the position of the cover 330 by pressing the button 332 .

The protector 333 may be disposed on the upper side of the cover 330 . When the cover 330 is moved upward, the protector 333 may be in close contact with the stopper 311 to prevent the cover 330 from colliding with the stopper 311 . The protector 333 may be made of an elastic material.

The solenoid valve 334 may be connected to the controller 260 and the button 332 . The solenoid valve 334 may release the restraint of the cover 330 by a physical method in which the button 332 is pressed by an external force. The solenoid valve 334 may release the restraint of the cover 330 by an electrical method based on an electrical signal from the controller 260 . The cover 330 may be moved by a manual method in which a user presses the button 332 , or may be moved by an automatic method by the controller 260 during the washing cycle. During the washing cycle, the solenoid valve 334 receives an electrical signal from the controller 260 and moves the cover 330 upward to inject detergent into the washing tub 100 .

The rinse bottle 340 may be spaced apart from one side of the cover 330 . The rinse tube 340 may extend in the vertical direction and may store rinse aid therein.

The path 350 may be formed by being depressed in the body 310 . The path 350 may extend in the vertical direction, and the cover 330 may be inserted therein.

The space 310s may be formed to be recessed in the body 310 . The body 310 may include a seating surface 312 to which the cover 330 is attached. The seating surface 312 may extend in the vertical direction, and may form a boundary of the path 350 . The space 310s may be recessed from the seating surface 312 . The space 310s may define an area in which detergent is accommodated. The user may put the detergent into the space 310s after moving the cover 330 upward.

Hereinafter, a detailed structure of the dispenser 300 will be described with reference to FIG. 6 . FIG. 6 is a cross-sectional perspective view showing the dispenser 300 taken along the line A-A' shown in FIG. 5 .

The guide 331 may protrude from the lower end 330a of the cover 330 . The guide 331 may extend obliquely downward from the lower end 330a of the cover 330 , and the guide end 331a may be formed on the lower side of the cover 330 .

The body 310 may include a fence 313 forming a space 310s on the inside. The fence 313 may be understood as a wall delimiting the space 310s.

The fence 313 has a lower boundary surface 313c forming a lower boundary of the space 310s, an inner boundary surface 313d forming an inner boundary of the space 310s, and an upper boundary of the space 310s. It may include an upper boundary surface (313e).

The inner boundary surface 313d may be spaced apart from the area in which the detergent and washing water are injected. The inner boundary surface 313d may face the guide 331 .

One end of the upper boundary surface 313e may be in close contact with the cover 330 . When the cover 330 is moved upward to open the space 310s, the lower end 330a of the cover 330 may come into contact with the upper boundary surface 313e.

The lower boundary surface 313c may extend to be bent at least once while going to the inside of the space 310s. The lower boundary surface 313c may include a first lower boundary surface 313a extending inward from the inlet lower end 314 and a second lower boundary surface 313b extending inward from the first lower boundary surface 313a. .

The lower boundary surface 313c may extend obliquely toward the injection arm 160 . The lower boundary surface 313c may extend downwardly. The angle at which the first lower boundary surface 313a is inclined with respect to the horizontal direction may be greater than the angle at which the second lower boundary surface 313b is inclined with respect to the horizontal direction. The lower boundary surface 313c may have a gentle inclination angle toward the inner side of the space 310s.

The angle θ1 at which the guide 331 is inclined with respect to the horizontal direction may be greater than the angle θ2 at which the lower boundary surface 313c is inclined with respect to the horizontal direction.

The width between the guide 331 and the lower boundary surface 313c may increase toward the inside of the space 310s. The width w1 between the guide end 331a and the inlet lower end 314 may be narrower than the width w2 between the lower end 330a and the inlet lower end 314 of the cover 330 . Detergent injected into the space 310s may be prevented from falling out of the space 310s due to a change in width between the guide 331 and the lower boundary surface 313c.

Hereinafter, the effect of the dispenser 300 according to the present invention will be described with reference to FIGS. 7 and 8 . 7 shows the relationship between the conventional dispenser 300' and the jetting

arms

160a and 160b, and FIG. 8 shows the relationship between the dispenser 300 and the jetting

arms

160c, 160d according to an embodiment of the present invention. will be.

The

injection arms

160a, 160b, 160c, and 160d may be disposed to be movable up and down. Hereinafter, for convenience of explanation, the spray arm 160a located on the lower side according to the prior art is used as the first injection arm 160a, and the injection arm 160b located on the upper side according to the prior art is used as the second injection arm 160b. Thus, the spray arm 160c located on the lower side according to the present invention is called a third injection arm 160c, and the injection arm 160d located on the upper side according to the present invention is called a fourth injection arm 160d.

The dispensers 300 and 300' may be spaced apart from the outer ends of the

spray arms

160a, 160b, 160c, and 160d in a radial direction.

Referring to FIG. 7 , the

spray arms

160a and 160b spray the washing water obliquely with respect to the vertical direction toward the dispenser 300 ′. This is because the dispenser 300' is spaced apart from each other in the radial direction of the

injection arms

160a and 160b.

In the

conventional injection arms

160a and 160b, both the first injection arm 160a and the second injection arm 160b have an injection nozzle opened toward the dispenser 300 to spray the washing water with the detergent D 161a1, 161a2, 161b1, 161b2) should be provided in plurality. At the position of the first injection arm 160a, the second injection nozzle 161a2 sprays washing water with the detergent D, but the first injection nozzle 161a1 hits the wall surface of the door 20 to generate noise, At the position of the second injection arm 160b, the first injection nozzle 161b1 sprays washing water with the detergent D, but the second injection nozzle 161b2 hits the wall surface of the door 20 to generate noise. Therefore, in order for the vertically moving

spray arms

160a and 160b to continuously spray washing water to the detergent D, a plurality of spray nozzles 161a1, 161a2, 161b1, 161b2 must be provided and at the same time generate noise. have.

Referring to FIG. 8 , the dispenser 300 includes a guide 331 to guide the washing water sprayed from the

spray arms

160c and 160d toward the detergent D.

The washing water may be sprayed upward from the

spray arms

160c and 160d. Therefore, the washing water does not hit the wall surface of the door 20 .

In the

injection arms

160c and 160d of the present invention, in order for both the third injection arm 160c and the fourth injection arm 160d to spray the washing water with the detergent D, the

injection nozzles

161c and 161d are singular. It may be provided, and the single number of injection nozzles (161c, 161d) may be opened in the normal direction.

Whether it is the position of the third injection arm 160c or the position of the fourth injection arm 160d, the washing water injected from the

injection nozzles

161c and 161d may be injected upward (A). The washing water sprayed upward (A) may reach the detergent (D) by hitting the guide 331 and then moving along the guide 331 to the space 310s.

In the above, preferred embodiments of the present invention have been illustrated and described, but the present invention is not limited to the specific embodiments described above, and in the technical field to which the present invention pertains without departing from the gist of the present invention as claimed in the claims. Various modifications may be made by those of ordinary skill in the art, and these modifications should not be individually understood from the technical spirit or perspective of the present invention.

Claims

a washing tank in which the washing object is accommodated;

a washing pump for extruding washing water;

a jet arm connected to the washing pump and having a jet nozzle opened toward the inside of the washing tank; and

It is disposed on the upper side of the spray arm and includes a dispenser having a space in which detergent is injected,

The dispenser is

a body forming the space;

a cover that is movably disposed on the body and opens and closes the space; and

and a guide protruding from the cover so that at least a part of the injection path of the washing water through the injection nozzle intersects.
The method of claim 1,

The guide is

A dishwasher extending obliquely toward the spray arm.
The method of claim 1,

The lower boundary surface of the space extends obliquely toward the spray arm.
The method of claim 1,

The guide and the lower boundary of the space extend obliquely toward the injection arm,

The angle at which the guide is inclined is greater than the angle at which the lower boundary surface is inclined.
The method of claim 1,

A width between the lower boundary surface of the space and the guide increases toward the inside of the space.
The method of claim 1,

The guide is

The dishwasher protrudes from the lower end of the cover toward the spray arm.
The method of claim 1,

The spray arm is

Spraying the washing water toward the washing target seated on the upper side of the jet arm,

The guide is

A dishwasher for guiding a portion of the washing water sprayed from the jet arm into the space.
The method of claim 1,

The dispenser is

A dishwasher spaced apart from the outer end of the spray arm in a radial direction.
The method of claim 1,

The spray arm is

A dishwasher disposed to be movable up and down in the washing tank.
The method of claim 1,

The cover is

A dishwasher disposed to be movable up and down, moved upward to open the space, and moved downward to close the space.
The method of claim 1,

Further comprising a door for opening and closing the inside of the washing tank,

The dispenser is

A dishwasher disposed on an inner surface of the door.