KR20100067571A - Dish washing machine - Google Patents

Abstract

PURPOSE: A dish washer is provided to reduce the number of components and to minimize the combining part of each component. CONSTITUTION: A dish washer comprises: a washing tub; a sump unit(100) which is installed in the washing tub; and one or more jetting nozzle which sprays the cleaning water of the sump unit of the washing tub inside. The sump unit comprises a sump housing(10), an impeller which pumps the cleaning water of the sump housing, a guide member(30) which directly guides the cleaning water pumped by the impeller to the jetting nozzle, and a housing cover(40) which covers up the sump housing and the guide member and wherein a filth chamber(45) collects dirt included in the cleaning water.

Description

Dish washing machine

The present invention relates to a dishwasher, and more particularly, to a dishwasher having a sump unit for storing the washing water and rotating the impeller to flow the washing water into the spray nozzle through the internal flow passage.

In general, the dishwasher includes a main body having a washing tank, a dish basket provided inside the washing tank, a spray nozzle for spraying the washing water into the dish basket, and a sump unit connected to the spray nozzle to pump the washing water into the spray nozzle. do.

 The sump unit included in the conventional dishwasher includes a sump housing, an impeller provided therein, an impeller housing in which an impeller is mounted and a waste chamber in which dirt mixed with the washing water is collected, and the impeller housing is closed to spray the washing water. An impeller housing cover having a flow path leading to the nozzle, a sump cover covering the sump housing, a filter cover mounted on the sump cover and a filter for separating and filtering the washing water and the dirt entering the waste chamber, and connected to the waste chamber. It includes a drain pump.

In the conventional sump unit, the impeller housing, the impeller housing cover, the sump cover, the filter cover, etc. are laminated and assembled in the sump housing, and there are many components, and the process of assembling them is complicated. There is a problem in that the manufacturing cost is increased to increase, and the coupling portion between each component is increased, so that the possibility of water leakage of the washing water at the coupling portion is relatively increased.

In addition, since many components are laminated and coupled, there is a problem in that an internal flow path structure is complicated to increase the flow resistance of the washing water.

In addition, the volume of the sump unit is increased due to the increase in the number of parts, and the problem that the washable space inside the washing tank is relatively reduced occurs.

In addition, the conventional sump unit has a problem that the whole sump unit has to be disassembled when the waste is accumulated or fixed because the waste chamber is provided in the impeller housing disposed on the lower side.

One aspect of the present invention provides a dishwasher having a sump unit having a structure capable of reducing the number of parts and minimizing a coupling part of each part.

In addition, another aspect of the present invention provides a dishwasher having a sump unit having a simple internal flow path structure.

In addition, another aspect of the present invention provides a dishwasher capable of increasing the washable space inside the washing tank by compacting the sump unit.

Further, another aspect of the present invention provides a dishwasher having a sump unit having a structure capable of easily removing dirt and the like stuck to a dirt chamber.

To this end, the dishwasher according to an aspect of the present invention includes a washing tank, a sump unit provided in the washing tank, and a dish washing machine including at least one spray nozzle for spraying the washing water of the sump unit into the washing tank. And a sump housing, an impeller for pumping the washing water of the sump housing, a guide member mounted with the impeller and guiding the washing water pumped by the impeller directly to the injection nozzle, and covering the sump housing and the guide member. It may include a housing cover is formed with a dirt chamber for collecting dirt contained in the wash water.

The at least one injection nozzle is rotatably coupled to the center of the housing cover, the impeller may be disposed on any one side spaced from the center of the housing cover.

The guide member includes a mounting portion on which the impeller is mounted, and a flow path portion spirally partitioned about the mounting portion.

The at least one spray nozzle is provided in plurality, and includes a first spray nozzle directly connected to the sump unit, and a second spray nozzle connected to the sump unit through an extension passage.

The flow path part may be branched into a first flow path part for guiding water flow to the first spray nozzle and a second flow path part for guiding water flow to the extension flow path.

It further includes a valve provided in the second flow path to open and close the second flow path.

The housing cover may include a sampling hole for communicating the flow path part with the dirt chamber.

The housing cover may further include a guide part for guiding the washing water flowing into the upper surface of the housing cover through the sampling hole toward the dirt chamber.

The sump housing includes a plurality of coupling ribs, some of the plurality of coupling ribs are coupled to the guide member, and others are coupled to the housing cover.

In addition, the dishwasher of the present invention viewed from another aspect, in the dishwasher comprising a washing tank, a sump unit provided in the washing tank, and a spray nozzle rotatably coupled to the sump unit, the sump unit is a sump housing, An impeller for pumping the washing water in the sump housing, a guide member to which the impeller is mounted, a housing cover to cover the sump housing and the guide member, and a dirt chamber to collect dirt contained in the wash water introduced from the guide member. And the housing cover and the dirt chamber are integrally formed.

The sump housing includes a plurality of coupling ribs, some of the plurality of coupling ribs are coupled to the guide member, and others are coupled to the housing cover.

The guide member may include a flow path part for guiding the washing water directly to the injection nozzle.

The rotating shaft of the impeller is provided at a position spaced apart from the rotation center of the injection nozzle.

The housing cover includes a sampling hole for communicating the guide member and the dirt chamber.

The housing cover may further include a guide part for guiding the washing water flowing into the upper surface of the housing cover through the sampling hole to the dirt chamber.

In addition, the dishwasher of the present invention as viewed from another aspect; A sump housing provided in a lower portion of the washing tank; An impeller for pumping the washing water of the sump housing; A guide member including a mounting portion to which the impeller is mounted, and a flow path portion extending radially outwardly of the mounting portion; It may include a housing cover which covers the guide member and the sump housing and is formed with a dirt chamber for collecting dirt contained in the wash water.

It is rotatably mounted to the housing cover further comprises a spray nozzle for supplying the washing water to the washing tank.

The flow path portion directly guides the water flow discharged from the impeller to the center of rotation of the injection nozzle.

The sump housing includes a plurality of coupling ribs, some of the plurality of coupling ribs are coupled to the guide member, and others are coupled to the housing cover.

Dishwasher according to an aspect of the present invention described above by forming a dirt chamber in the housing cover to cover the sump housing and the guide member, it is possible to reduce the components of the sump unit to reduce the coupling portion between the components of the coupling portion This will reduce the likelihood of leaks from the wash water.

In addition, since the reduced components are laminated and coupled as compared to the conventional, the flow path structure of the internal structure is relatively simplified, thereby reducing the flow resistance of the washing water.

In addition, the sump unit can be compacted to reduce the volume of the sump unit, thereby relatively increasing the washable space of the washing tank.

In addition, since the dirt chamber is formed in the housing cover, when the dirt is fixed in the dirt chamber and cleaned, it is possible to clean the dirt chamber only by removing the filter cover.

Hereinafter, a dishwasher according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

1 is a side cross-sectional view of a dishwasher according to a preferred embodiment, and FIG. 2 is a perspective view schematically showing the interior of the dishwasher according to a preferred embodiment.

As shown in Figures 1 and 2, the dishwasher according to a preferred embodiment of the present invention, the main body 1 to form the exterior, the door 1a rotatably coupled to the front of the main body 1, The washing tank 2 provided inside the main body 1, the sump unit 100 provided in the lower portion of the washing tank 2 to receive the washing water and pumping the received washing water, and the washing water pumped by the sump unit 100 It comprises a spray nozzle (3: 3a, 3b, 3c) for spraying into the washing tank (2).

The washing tank 2 is provided with racks 4: 4a and 4b that can be accommodated in and pulled out.

The rack 4 is slidably mounted on the side wall of the washing tank 2 including an upper rack 4a disposed above the washing tank 2 and a lower rack 4b disposed below the upper rack 4a. do.

The upper rack 4a and the lower rack 4b are provided with dish baskets 5: 5a and 5b for placing dishes such as dishes.

One side of the washing tank 2 is provided with a water supply port 6 for introducing the washing water supplied from the water supply source into the washing tank 2. The wash water supplied through the water inlet 6 falls to the bottom surface of the washing tank 2 and then into the sump unit 100 through the inlet 44 formed in the housing cover 40 of the sump unit 100 to be described later. It will flow in.

The injection nozzle 3 is provided to rotate due to the injection pressure of the sprayed washing water, the first injection nozzle 3a and the upper rack 4a disposed between the sump unit 100 and the lower rack 4b. And a second spray nozzle 3b disposed between the lower rack 4b and a third spray nozzle 3c disposed above the upper rack 4a.

The first spray nozzle 3a is rotatably connected to the upper center portion of the sump unit 100 to spray a part of the washing water pumped from the sump unit 100 toward the dish basket 5b adjacent to the first spray nozzle 3a. do.

 The second and third spray nozzles 3b and 3c spray the rest of the washing water pumped from the sump unit 100 to the side of the dish baskets 5a and 5b adjacent to the second and third spray nozzles 3b and 3c.

In addition, in the present embodiment, the auxiliary spray nozzle 7 may be provided at the lower side of the washing tank 2. The auxiliary spray nozzle 7 may improve the washing power by discharging the washing water to a blind area where the washing water of the spray nozzle 3 does not reach.

The spraying direction of the spray nozzle 3 and the auxiliary spray nozzle 7 is provided to face the dish basket 5, and the washing water sprayed from the spray nozzle 3 and the auxiliary spray nozzle 7 is the dish basket 5 A strong washing power is exerted by colliding with the dishes accommodated in the container.

The second and third spray nozzles 3b and 3c and the auxiliary spray nozzle 7 are connected to the sump unit 100 through the extension passages 8: 8a and 8b, and the extension passage 8 is the auxiliary spray nozzle 7. ) And a first extension passage 8a connecting the sump unit 100 and extending along the rear surface of the washing tank 2 to connect the second and third spray nozzles 3b and 3c to the sump unit 100. It includes a double passage 8b.

The extension passage 8 is connected to the sump unit 100 to guide the washing water flowing due to the strong pumping pressure of the sump unit 100 to the auxiliary spray nozzles 7 and the second and third spray nozzles 3b and 3c. Supply.

On one side of the second extension passage 8b, a bypass passage 9 is arranged in parallel with the second extension passage 8b.

One end of the bypass passage 9 is configured with a bypass pipe 9a through which the washing water of the dirt chamber 45 to be described later is introduced, and an upper end of the bypass passage 9 is raised along the bypass passage 9. The hole 9b which overflows the wash water to a wash tank is comprised.

The bypass pipe 9a is provided to flow a part of the washing water to the bypass passage 9 when dirt, such as food waste, accumulates in the sump unit 100 and the water pressure of the washing water becomes abnormally high.

 The bypass pipe 9a may be provided with a check valve for guiding the washing water to move upward by opening the bypass pipe 9a only when the water pressure of the washing water flowing into the bypass pipe 9a is higher than or equal to a predetermined level. In this embodiment, the washing water is bypassed by using the height of the washing water on the bypass flow path 9 which is changed according to the water pressure of the washing water without the configuration of the check valve.

Therefore, when the water pressure in the sump unit 100 is below a predetermined level, the washing water is maintained at a predetermined height on the bypass flow path 9 through the bypass pipe 9a, and the bypass flow path 9 when the water pressure is above the predetermined level. The washing water in the phase rises along the bypass passage 9 and is discharged to the washing tank 2 through the hole 9b formed above the bypass passage 9 to maintain the pressure of the dirt chamber 45.

The lower surface of the washing tank 2 is equipped with a sump unit 100 for receiving the washing water and pumping the washing water and supplying the washing water to the injection nozzle 3 and the auxiliary injection nozzle 7.

Figure 3 is an exploded perspective view of the sump unit of the dishwasher according to a preferred embodiment, Figure 4 is an exploded perspective view showing a state in which the housing cover is separated from the sump unit of the dishwasher according to a preferred embodiment, Figure 5 is a preferred embodiment Figure 6 is a view showing the flow of the washing water on the housing cover of the dishwasher according to Figure 6 is a rear view of the housing cover of the dishwasher according to a preferred embodiment, Figure 7 is a sump unit and a spray nozzle of the dishwasher according to a preferred embodiment It is the separated perspective view which shows this separated state.

The sump unit 100 has a sump housing 10 forming an appearance as illustrated in FIG. 3, a washing pump 20 for pumping the washing water, and a guide of the flow of the washing water pumped by the washing pump 20. The guide member 30 and the dirt chamber 45 are formed and may include a housing cover 40 covering the guide member 30 and the sump housing.

The sump housing 10 is formed in a substantially circular shape, and the inside is recessed downward to accommodate various components.

A plurality of first coupling ribs 12 for coupling with the guide member 30 and the housing cover 40 protrude from the edge of the sump housing 10. Some of the plurality of first coupling ribs 12 are coupled to the guide member 30, and other portions are coupled to the second coupling ribs 40b formed on the rear surface of the housing cover 40 to be described later. Reference)

The washing pump 20 is mounted at a portion radially spaced from the central portion A of the sump housing 10, and is disposed at an opposite position of the washing pump 20 from the central portion A of the sump housing 10. A heater 60 for heating the washing water is mounted.

The washing pump 20 includes a pump motor 21 fixedly installed on a lower surface of the sump housing 10 and an impeller 22 rotatably mounted to a rotation shaft of the pump motor 21, and the pump motor 21. ) And the impeller 22 may be further provided with a crusher 24 for crushing the dirt.

The pump motor 21 is installed on the lower surface of the sump housing 10, and the rotation shaft of the pump motor 21 protrudes through the lower surface of the sump housing 10.

At this time, the lower surface of the sump housing 10 is provided with a sealing member 23 surrounding the rotating shaft to prevent the wash water from leaking to the pump motor 21 side.

Impeller 22 is provided in the form to discharge the washing water in the axial direction in the radial direction is mounted on the upper surface of the guide member (30).

The crusher 24 is for crushing dust such as side dish residues introduced into the sump unit 100 into small lumps, and is coupled to the rotating shaft of the pump motor 21 to rotate the cutter portion 25 and the cutter portion ( 25 may be provided on the upper part to include a dirt filter 26 for preventing a relatively large lump of dirt from entering the impeller 22.

Heater 60 is mounted to the sump housing 10 to improve the washing power of the wash water, the sump housing 10 is formed with a heater installation groove 11 recessed downward in a size corresponding to the heater 60, The heater 60 is accommodated in the heater installation groove 11.

Since the rotating shaft of the washing pump 20 is disposed at a position spaced apart from the center portion A of the sump housing 10 by a predetermined distance, the sump housing 10 is provided with a heater installation groove 11 below the sump housing 10. Space can be secured.

Since the heater 60 is accommodated in the heater installation groove 11 formed at the lowest position among the receiving spaces of the sump housing 10, even when a relatively small amount of washing water flows into the sump housing 10, the washing water is heated by the heater 60. It is to be stored in the heater installation groove 11 above the installation height of) so that the heater 60 is not exposed to the air to prevent overheating of the heater 60.

A drain pump 50 and a drain pipe 51 are provided on the lower side of the sump housing 10 to discharge the washing water and the dirt in the sump unit 100 to the outside of the dishwasher. (See FIGS. 1 and 3)

An impeller 22 is mounted to the sump housing 10, and a guide member 30 is provided to guide the flow of washing water discharged by the impeller 22.

The guide member 30 is formed around the communication hole 31 and the communication hole 31 for introducing the washing water of the sump housing 10, as shown in Figures 3 and 4, the mounting space of the impeller 22 Comprising the mounting portion 32 and the flow path portion (33, 34) spirally partitioned around the mounting portion (32).

The lower part of the communication hole 31 is provided with the above-described dirt filter 26 which prevents a relatively large lump of dirt from entering the impeller 22.

The impeller 22 rotates in combination with the rotation shaft of the pump motor 21 while washing water in the sump housing 10 and the fine water contained in the wash water are upwardly discharged in a radial direction to wash the water in the sump housing 10. It serves to pump onto the guide member (30).

The flow path parts 33 and 34 are branched from the mounting part 32 and have a first flow path part 33 for guiding the washing water to the first spray nozzle 3a and a second flow path part for guiding the washing water to the extension flow path 8 ( 34).

The first and second flow path parts 33 and 34 extend in a spiral shape around the mounting part 32. The first flow path part 33 extends to the center of the sump unit 100 and the second flow path part 34. ) Extends to the edge of the sump unit 100.

The first flow path part 33 is formed to supply the water flow discharged from the impeller 22 directly to the first spray nozzle 3a without a separate flow path member.

The second flow path part 34 is divided into a first branch flow path part 35 in communication with the first extension flow path 8a and a second branch flow path part 36 in communication with the second extension path 8b.

The valve 37 is rotatably installed in the second flow path 34, and the valve 37 selectively opens and closes the first branch flow path 35 and the second branch flow path 36.

Therefore, when the amount of dishes to be cleaned is large, the valve 37 closes the first branch flow path part 35 and opens the second branch flow path part 36, whereby the washing water flows through the second branch flow path part 36. Only the furnace flows to supply the washing water to the second extension passage (8b). The washing water supplied to the second extension passage 8b is sprayed through the auxiliary spray nozzle 7 to wash the dishes.

In addition, when the amount of dishware to be washed is small, the valve 37 opens the first branch passage 35 and closes the second branch passage 36 so that the washing water only passes through the first branch passage 35. By flowing, the washing water is supplied to the first extension passage 8a. The washing water supplied to the first extension passage 8a washes the dishes with the washing water sprayed into the second and third spray nozzles 3b and 3c.

A housing cover 40 is provided at an upper portion of the guide member 30, and the housing cover 40 covers the upper surface of the sump housing 10 in which the guide member 30 is accommodated.

As shown in FIGS. 3 and 5, the housing cover 40 communicates with the first flow path part 33 at the center thereof to communicate the washing water on the first flow path part 33 to the first spray nozzle 3a. A ball 41 is formed, and a waste chamber 45 is formed around the communication hole 41, and the washing water in the washing tank 2 is introduced into the sump unit 100 at the edge of the housing cover 40. Inlet 44 is formed in the circumferential direction.

The sump unit 100 has a housing cover in direct communication with a central portion A of the sump housing 10, one side of the first flow path part 33 of the guide member 30, and one side of the first flow path part 33. The communication hole 41 of 40 is arrange | positioned on the same axis.

In addition, the housing cover 40 includes a first coupling part 42 coupled to the first extension passage 8a to supply the washing water to the auxiliary spray nozzle 7, and second and third spray nozzles 3b and 3c. A second coupling part 43 coupled to the second extension passage 8b and a third coupling portion 47 coupled to the bypass passage 9 are provided to supply the washing water to the furnace.

The dirt chamber 45 is integrally formed on the upper surface of the housing cover 40.

The housing cover 40 is provided with a sampling hole 46 for introducing washing water on the flow path portions 33 and 34 of the guide member 30 to the upper surface of the housing cover 40, and sampling around the sampling hole 46. A guide part 49 is provided to guide the washing water passing through the hole 46 to move smoothly to the dirt chamber 45.

The fine dirt that is crushed by the cutter unit 25 and then passed through the dirt filter 26 and introduced into the guide member 30 by the impeller 22 is disposed in the housing cover 40 together with the washing water through the sampling hole 46. Into the waste chamber 45 of the upper phase, the waste chamber 45 collects the fine soil introduced in this way as the washing water.

The discharge chamber 48 is formed in the waste chamber 45 and is connected to the drain pump 50. When the drain pump 50 is driven, the waste collected in the waste chamber 45 is drained by the operation of the drain pump 50. It is discharged to the (51) side is automatically discharged to the outside of the dishwasher. In addition, the upper portion of the waste chamber 45 is connected to the bypass flow path 9 so that the washing water on the bypass flow path 9 rises or falls in accordance with the water pressure inside the waste chamber 45.

As shown in FIG. 6, a rib portion 40a coupled to the edge of the guide member 30 to partition the flow path portions 33 and 34 is formed on the rear surface of the housing cover 40 to form the guide member 30. A plurality of second coupling ribs (40b) is formed on the rear edge side, a part is coupled to the first coupling rib 12 of the sump housing 10, and the other part and the guide member (30) To combine.

In addition, the sump unit 100 is provided at the upper portion of the housing cover 40 to prevent the waste collected in the waste chamber 45 from overflowing the outside of the waste chamber 45, while only washing water flows out of the waste chamber 45. It further comprises a filter cover 70 of the mesh form to be.

The filter cover 70 is installed on the upper surface of the housing cover 40, the mesh filter 71 is installed, so that the dirt contained in the dirt chamber 45 on the housing cover 40 is discharged to the upper side of the filter cover 70 along the washing water. Do not.

At the center of the filter cover 70, a coupling hole 72 to which the first spray nozzle 5a is coupled is formed so that the first spray nozzle 3a is rotatably coupled to the communication hole 41, and the first flow path part is provided. The washing water on the 33 is moved upward by the hydraulic pressure driven by the impeller 22 and is supplied to the first spray nozzle 3a through the communication hole 41 of the housing cover 40.

Similarly, the washing water on the second flow path part 34 is also upwardly moved by hydraulic pressure, and optionally, the first extension flow path 8a or the second through the first and second coupling parts 42 and 43 according to the operation of the valve 37. It flows into the extension flow path 8b and is supplied to the auxiliary injection nozzle 7 or the 2nd, 3rd injection nozzles 3b and 3c.

Therefore, in the preferred embodiment, the impeller 22 is disposed at an eccentric position from the center of the sump unit 100 to discharge the water flow discharged from the impeller 22 to the guide member 30 on which the impeller 22 is mounted. It is possible to form a first flow path portion 33 which guides to the communication hole 41 of the housing cover 40 on which the rotating shaft of (3a) is mounted, and furthermore, the dirt chamber 45 is placed on the housing cover 40. It can be formed.

After all, the preferred embodiment of the conventional sump unit by forming a dirt chamber 45 on the housing cover 40 to cover the guide member 30 and the sump housing 10 without the need for a separate configuration to form a dirt chamber The components are reduced compared to the configuration.

Since the components are reduced in this way, the coupling sites between the components are reduced, thereby reducing the possibility of washing water leakage at the coupling sites.

In addition, since the reduced components are laminated and coupled as compared to the conventional, the flow path structure of the internal structure is relatively simplified, thereby reducing the flow resistance of the washing water.

In addition, the sump unit can be compacted to reduce the volume of the sump unit, thereby relatively increasing the washable space of the washing tank.

In addition, since the dirt chamber is formed in the housing cover, when the dirt is fixed in the dirt chamber and cleaned, it is possible to clean the dirt chamber only by removing the filter cover.

 Hereinafter, an operation of the present invention will be described with reference to the accompanying drawings.

The washing water flowing into the washing tank 2 through the spray nozzle 5 or the water inlet 8 is introduced into the sump unit 100 through the inlet 44 of the housing cover 40, and the washing water is introduced into the heater 60. Heated by).

When the pump motor 21 is driven, relatively large lumps of dirt are pulverized into small lumps by the cutter portion 25 coupled to the rotating shaft of the pump motor 21, and the size enough to pass through the dirt filter 26. As shown in FIG. 4, the fine soils flow through the washing water and the guide member 30 by the operation of the impeller 22.

The pumped wash water flows in an oblique direction away from the mounting portion 32 by the rotational force of the impeller 22 and moves to the first and second flow path portions 33 and 34.

The washing water moved to the first flow path part 33 flows in the direction of the arrow A of FIG. 4, and then the coupling hole of the communication hole 41 and the filter cover 70 of the housing cover 40 as shown in FIG. 7. Through 72, the first injection nozzle 3a is introduced.

In addition, the washing water moved to the second flow path part 34 flows in the direction of the arrow B of FIG. 4, and then, when the valve 37 is driven, the first coupling part 42 of the housing cover 40 as shown in FIG. 5. Alternatively, the first coupling passage 8a or the second extension passage 8b is introduced into the auxiliary spray nozzle 7 or the second and third spray nozzles 3b and 3c through the second coupling part 43. .

In addition, a part of the washing water and foreign matter on the flow path portions 33 and 34 flows in the direction of the arrow C of FIG. 4, and then is discharged to the upper surface of the housing cover 40 through the sampling hole 46. It is guided by the guide part 49 as shown in FIG. 5 and flows into the dirt chamber 45 side.

Washing water and foreign matter introduced into the dirt chamber 45 is discharged to the mesh filter 71 by the pressure of the washing water, etc., followed by the washing water passes through the mesh filter 71 as shown in FIG. It is introduced into the sump housing 10 through the), foreign matter does not pass through the mesh filter 71 and remains in the dirt chamber 45.

When a predetermined amount of dirt accumulates in the dirt chamber 45, the drain pump 50 operates to discharge the dirt in the dirt chamber 45 to the outside.

1 is a side cross-sectional view of a dishwasher according to a preferred embodiment.

2 is a perspective view schematically showing the inside of a dishwasher according to a preferred embodiment.

3 is an exploded perspective view of the sump unit of the dishwasher according to the preferred embodiment.

Figure 4 is an exploded perspective view showing a state in which the housing cover is separated from the sump unit of the dishwasher according to the preferred embodiment.

5 is a view showing the flow of the washing water on the housing cover of the dishwasher according to a preferred embodiment.

6 is a rear view of the housing cover of the dishwasher according to the preferred embodiment.

7 is an exploded perspective view illustrating a sump unit and a spray nozzle of a dish washing machine according to a preferred embodiment of the present invention.

Description of the Related Art [0002]

1: body 2: washing tank

3: spray nozzle 4: rack

7: auxiliary injection nozzle 8: extension euro

9: bypass euro 10: sump housing

11: heater receiving groove 12: the first coupling rib

22 impeller 24 grinding device

30: guide member 32: mounting portion

33: first euro part 34: second euro part

40: housing cover 41: communication hole

44: inlet 45: dirt chamber

46: sampling hole 49: guide part

70: filter cover 71: mesh filter

100: sump unit.

Claims (19)

In the dishwasher comprising a washing tank, a sump unit provided in the washing tank, and at least one spray nozzle for spraying the washing water of the sump unit into the washing tank, The sump unit includes a sump housing, an impeller for pumping the washing water of the sump housing, a guide member mounted with the impeller, and guiding the washing water pumped by the impeller directly to the injection nozzle, and the sump housing and the guide member. Covering the dishwasher, characterized in that it comprises a housing cover is formed with a dirt chamber for collecting dirt contained in the wash water. The method of claim 1, The at least one jet nozzle is rotatably coupled to the center of the housing cover, the impeller is a dishwasher, characterized in that disposed on any one side spaced from the center of the housing cover. The method of claim 1, The guide member is a dishwasher, characterized in that it comprises a mounting portion on which the impeller is mounted, and a flow path portion spirally partitioned about the mounting portion. The method of claim 3, wherein The at least one spray nozzle is provided in plurality, the dishwasher comprising a first spray nozzle connected directly to the sump unit, and a second spray nozzle connected to the sump unit through an extension passage. The method of claim 3, wherein And the flow path part is branched into a first flow path part for guiding the flow of water to the first spray nozzle and a second flow path part for guiding the flow of water to the extension flow path. The method of claim 5, And a valve provided in the second flow path to open and close the second flow path. The method of claim 3, wherein The housing cover is a dishwasher, characterized in that it comprises a sampling hole for communicating the flow path and the dirt chamber. The method of claim 7, wherein The housing cover further comprises a guide unit for guiding the washing water flowing into the upper surface of the housing cover through the sampling hole toward the dirt chamber. The method of claim 1, The sump housing includes a plurality of coupling ribs, Any one of the plurality of coupling ribs is coupled to the guide member, the other portion is dishwasher, characterized in that coupled to the housing cover. In the dishwasher comprising a washing tank, a sump unit provided in the washing tank, and a spray nozzle rotatably coupled to the sump unit, The sump unit includes a sump housing, an impeller for pumping the washing water in the sump housing, a guide member to which the impeller is mounted, a housing cover to cover the sump housing and the guide member, and a wash water introduced from the guide member. A dirt chamber for collecting the contained dirt, And the housing cover and the dirt chamber are integrally formed. The method of claim 10, The sump housing includes a plurality of coupling ribs, Any one of the plurality of coupling ribs is coupled to the guide member, the other portion is dishwasher, characterized in that coupled to the housing cover. The method of claim 10, The guide member is a dish washer, characterized in that it comprises a flow path for guiding the washing water directly to the injection nozzle.  The method of claim 10, The rotating shaft of the impeller is a dishwasher, characterized in that provided in a position spaced apart from the rotation center of the injection nozzle. The method of claim 10, The housing cover is a dishwasher, characterized in that it comprises a sampling hole for communicating the guide member and the dirt chamber. 15. The method of claim 14, The housing cover further comprises a guide unit for guiding the washing water flowing into the upper surface of the housing cover through the sampling hole to the dirt chamber. A washing tank; A sump housing provided in a lower portion of the washing tank; An impeller for pumping the washing water of the sump housing; A guide member including a mounting portion to which the impeller is mounted, and a flow path portion extending radially outwardly of the mounting portion; And a housing cover covering the guide member and the sump housing and having a dirt chamber configured to collect dirt contained in the washing water. The method of claim 16, And a spray nozzle rotatably mounted to the housing cover to supply washing water to the washing tank. The method of claim 16, And the flow path unit directly guides the water flow discharged from the impeller to the center of rotation of the injection nozzle. The method of claim 16, The sump housing includes a plurality of coupling ribs, Any one of the plurality of coupling ribs is coupled to the guide member, the other portion is dishwasher, characterized in that coupled to the housing cover.

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