US20100147337A1 - Dish washing machine - Google Patents
Dish washing machine Download PDFInfo
- Publication number
- US20100147337A1 US20100147337A1 US12/585,965 US58596509A US2010147337A1 US 20100147337 A1 US20100147337 A1 US 20100147337A1 US 58596509 A US58596509 A US 58596509A US 2010147337 A1 US2010147337 A1 US 2010147337A1
- Authority
- US
- United States
- Prior art keywords
- sump
- wash water
- housing
- washing machine
- guide member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
- A47L15/4225—Arrangements or adaption of recirculation or discharge pumps
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
- A47L15/18—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
- A47L15/22—Rotary spraying devices
- A47L15/23—Rotary spraying devices moved by means of the sprays
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4202—Water filter means or strainers
- A47L15/4204—Flat filters
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
- A47L15/4219—Water recirculation
- A47L15/4221—Arrangements for redirection of washing water, e.g. water diverters to selectively supply the spray arms
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
- A47L15/4225—Arrangements or adaption of recirculation or discharge pumps
- A47L15/4227—Arrangements or adaption of recirculation or discharge pumps with macerator arrangements for chopping entrained food particles
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4285—Water-heater arrangements
Definitions
- Exemplary embodiments relate to a dish washing machine including a sump unit to store wash water, and to supply the wash water to an injection nozzle via an inner channel by rotating an impeller.
- a dish washing machine includes a body provided with a washing tub, a dish basket arranged in the washing tub, an injection nozzle to inject wash water onto the dish basket, and a sump unit connected to the injection nozzle, to pump the wash water to the injection nozzle.
- the sump unit included in such a conventional dish washing machine includes a sump housing, an impeller arranged in the sump housing, an impeller housing, to which the impeller is mounted, and in which a garbage chamber to collect garbage contained in the wash water in a mixed state is defined, and an impeller housing cover to close the impeller housing.
- the impeller housing cover is formed with a channel to guide wash water to an injection nozzle.
- the sump unit also includes a sump cover to cover the sump housing, a filter cover mounted to the sump cover, and provided with a filter to filter the wash water introduced into the garbage chamber such that the garbage is separated from the wash water, and a drainage pump connected to the garbage chamber.
- the impeller housing, impeller housing cover, sump cover, filter cover, etc. are assembled in the sump housing in a stacked state.
- a complicated assembly process may be required because a large number of constituent elements are assembled.
- an increase in manufacturing costs may occur due to an increased number of elements to be assembled and an increased number of assembly processes.
- the number of coupling portions of elements may be increased. For this reason, the possibility of leakage of wash water at the coupling portions may be increased.
- the increased number of elements may cause an increase in the volume of the sump unit.
- the washing space defined in the washing tub may be relatively reduced in volume.
- the garbage chamber is provided in the impeller housing arranged at a relatively low position. For this reason, it may be necessary to disassemble the entire portion of the sump unit when garbage is excessively accumulated in or fixed to the garbage chamber.
- It is a further aspect of exemplary embodiments is to provide a dish washing machine including a sump unit having a structure capable of easily removing garbage, etc. fixed to a garbage chamber.
- a dish washing machine includes a washing tub, a sump unit arranged in the washing tub, and at least one injection nozzle to inject wash water into the washing tub, wherein the sump unit includes a sump housing, an impeller to pump wash water from the sump housing, a guide member, to which the sump housing is mounted, the guide member guiding the wash water pumped by the impeller directly to the at least one injection nozzle, and a housing cover to cover the sump housing and the guide member, the housing cover being formed with a garbage chamber to collect garbage contained in the wash water.
- the at least one injection nozzle may be rotatably coupled to a central portion of the housing cover.
- the impeller may be arranged at a position laterally spaced apart from the central portion of the housing cover.
- the guide member may include a mounting portion, to which the impeller is mounted, and a channel extending spirally from a center of the mounting portion.
- the at least one injection nozzle may include a plurality of injection nozzles.
- the plurality of injection nozzles may include a first injection nozzle directly connected to the sump unit, and a second injection nozzle connected to the sump unit via an extension channel.
- the channel may be branched into a first channel to guide a flow of water to the first injection nozzle, and a second channel to guide a flow of water to the extension channel.
- the sump unit may further include a valve arranged in the second channel, to open or close the second channel.
- the housing cover may include a sampling hole to allow wash water to flow from the channel to the garbage chamber.
- the housing cover may further include a guide member to guide, to the garbage chamber, wash water introduced into the top of the housing cover via the sampling hole.
- the sump housing may include a plurality of coupling ribs. A part of the coupling ribs may be coupled with the guide member, and the remaining part of the coupling ribs may be coupled with the housing cover.
- a dish washing machine includes a washing tub, a sump unit arranged in the washing tub, and an injection nozzle rotatably coupled to the sump unit, wherein the sump unit includes a sump housing, an impeller to pump wash water from the sump housing, a guide member, to which the sump housing is mounted, a housing cover to cover the sump housing and the guide member, and a garbage chamber to collect garbage contained in the wash water introduced along the guide member, and the housing cover and the garbage chamber are integrally formed.
- the sump housing may include a plurality of coupling ribs. A part of the coupling ribs may be coupled with the guide member, and the remaining part of the coupling ribs may be coupled with the housing cover.
- the guide member may include a channel to directly guide the wash water to the injection nozzle.
- the impeller may have a rotating axis arranged at a position spaced apart from a rotating center of the injection nozzle.
- the housing cover may include a sampling hole to allow wash water to flow from the guide member to the garbage chamber.
- the housing cover may further include a guide member to guide wash water introduced into a top of the housing cover via the sampling hole.
- a dish washing machine includes a washing tub, a sump housing arranged at a bottom of the washing tub, an impeller to pump wash water from the sump housing, a guide member including a mounting portion, to which the impeller is mounted, and a channel extending outwardly in a radial direction of the mounting portion, and a housing cover to cover the guide member and the sump housing, the housing cover being formed with a garbage chamber to collect garbage contained in the wash water.
- the dish washing machine may further include an injection nozzle rotatably mounted to the housing cover, to supply wash water to the washing tub.
- the channel may guide a flow of water discharged from the impeller directly to a rotating center of the injection nozzle.
- the sump housing may include a plurality of coupling ribs. A part of the coupling ribs may be coupled with the guide member, and the remaining part of the coupling ribs may be coupled with the housing cover.
- FIG. 1 is a lateral sectional view of a dish washing machine according to an exemplary embodiment
- FIG. 2 is a perspective view schematically illustrating an interior of the dish washing machine according to an exemplary embodiment
- FIG. 3 is an exploded perspective view of a sump unit of the dish washing machine according to an exemplary embodiment
- FIG. 4 is an exploded perspective view illustrating in a state in which a housing cover is separated from the sump unit in the dish washing machine according to exemplary embodiment
- FIG. 5 is a perspective view illustrating a flow of wash water on the housing cover in the dish washing machine according to an exemplary embodiment
- FIG. 6 is a rear view of the housing cover of the dish washing machine according to an exemplary embodiment.
- FIG. 7 is an exploded perspective view illustrating a state in which injection nozzles are separated from the sump unit of the dish washing machine according to an exemplary embodiment.
- FIG. 1 is a lateral sectional view of a dish washing machine according to an exemplary embodiment.
- FIG. 2 is a perspective view schematically illustrating the interior of the dish washing machine according to an exemplary embodiment.
- the dish washing machine includes a body 1 to define an outer appearance of the dish washing machine, a door 1 a rotatably coupled to a front wall of the body 1 , and a washing tub 2 arranged in the body 1 .
- the dish washing machine also includes a sump unit 100 arranged on the bottom of the washing tub 2 , to contain wash water and to pump the contained wash water, and injection nozzles 3 , in detail, injection nozzles 3 a , 3 b , and 3 c , to inject the wash water pumped by the sump unit 100 into the washing tub 2 .
- Racks 4 in detail, racks 4 a and 4 b , are arranged in the washing tub 2 such that they may be loaded in and unloaded from the washing tub 2 .
- the racks 4 include an upper rack, namely, the rack 4 a , arranged at an upper portion of the washing tub 2 , and a lower rack, namely, the rack 4 b , arranged at a lower portion of the washing tub 2 .
- the racks 4 a and 4 b are slidably mounted to a side wall of the washing tub 2 .
- Dish baskets 5 in detail, dish baskets 5 a and 5 b , are coupled to the upper and lower racks 4 a and 4 b , respectively.
- Tableware such as dishes may be placed in the dish baskets 5 .
- a water supply port 6 is provided at one side wall of the washing tub 2 , to enable wash water supplied from a water supply source to be introduced into the washing tub 2 .
- the wash water supplied through the water supply port 6 falls to the bottom of the washing tub 2 , and is then introduced into the sump unit 100 via an inlet 44 formed through a housing cover 40 of the sump unit 100 .
- the housing cover 40 will be described later.
- the injection nozzles 3 are arranged such that they are rotatable by an injection pressure of injected wash water.
- the injection nozzles 3 may include a first injection nozzle, namely, the injection nozzle 3 a , arranged between the sump unit 100 and the lower rack 4 b , a second injection nozzle, namely, the injection nozzle 3 b , arranged between the upper and lower racks 4 a and 4 b , and a third injection nozzle, namely, the injection nozzle 3 c , arranged over the upper rack 4 a.
- the first injection nozzle 3 a is directly connected to a central portion of the top of the sump unit 100 while being rotatable, to inject a part of wash water pumped from the sump unit 100 toward the dish basket 5 b arranged adjacent to the first injection nozzle 3 a.
- the second and third injection nozzles 3 b and 3 c inject the remaining part of the wash water pumped from the sump unit 100 toward the dish baskets 5 a and 5 b arranged adjacent to the second and third injection nozzles 3 b and 3 c , respectively.
- An auxiliary injection nozzle 7 may also be arranged at a lower portion of the washing tub 2 adjacent to one side of the washing tub 2 in the illustrated embodiment.
- the auxiliary injection nozzle 7 injects wash water to a dead area where the wash water injected from the injection nozzles 3 may not reach, to achieve an enhancement in washing efficiency.
- the injection directions of the injection nozzles 3 and auxiliary injection nozzle 7 are directed to the associated dish baskets 5 .
- the wash water injected from the injection nozzles 3 and auxiliary injection nozzle 7 strikes dishes placed in the dish baskets 5 , thereby generating high washing effects.
- the second and third injection nozzles 3 b and 3 c , and the auxiliary injection nozzle 7 are connected to the sump unit 100 via extension channels 8 , respectively.
- the extension channels 8 include a first extension channel 8 a to connect the auxiliary injection nozzle 7 to the sump unit 100 , and a second extension channel 8 b extending along a rear wall of the washing tub 2 , to connect the second and third injection nozzles 3 b and 3 c to the sump unit 100 .
- the extension channels 8 are connected to the sump unit 100 , to guide wash water flowing in accordance with a high pumping pressure of the sump unit 100 such that the wash water is supplied to the auxiliary injection nozzle 7 and second and third injection nozzles 3 b and 3 c.
- a bypass channel 9 is arranged at one side of the second extension channel 8 b such that the bypass channel 9 and second extension channel 8 b extend in parallel.
- a bypass tube 9 a is provided at one end, namely, a lower end, of the bypass channel 9 , to receive wash water from a garbage chamber 45 , which will be described later.
- a hole 9 b is formed at the other end, namely, an upper end, of the bypass channel 9 to allow the wash water rising along the bypass channel 9 to overflow toward the washing tub 2 .
- the bypass tube 9 a is provided to bypass a part of wash water when the pressure of the wash water is abnormally increased due to accumulation of contaminants such as garbage in the garbage chamber 45 .
- a check valve may be arranged in the bypass tube 9 a , to allow wash water introduced into the bypass tube 9 a to flow upwardly through the bypass tube 9 a when the pressure of the wash water is equal to or higher than a predetermined pressure.
- the bypass of the wash water is achieved based on a height of the wash water in the bypass channel 9 varying in accordance with the pressure of the wash water, without using a check valve.
- the wash water introduced into the bypass tube 9 a is maintained at a certain height in the bypass channel 9 when the water pressure in the sump unit 100 is lower than a predetermined pressure.
- the wash water in the bypass channel 9 rises along the bypass channel 9 , so that it is discharged into the washing tub 2 through the hole 9 b formed at the upper end of the bypass channel 9 , thereby maintaining the garbage chamber 45 at a desired pressure.
- the sump unit 100 is mounted on the bottom of the washing tub 2 . As described above, the sump unit 100 contains wash water, and pumps the wash water, to supply the wash water to the injection nozzles 3 and auxiliary injection nozzle 7 .
- FIG. 3 is an exploded perspective view illustrating a configuration of the sump unit of the dish washing machine according to an exemplary embodiment.
- FIG. 4 is an exploded perspective view illustrating a state in which a housing cover is separated from the sump unit of the dish washing machine according to an exemplary embodiment.
- FIG. 5 is a perspective view illustrating a flow of wash water on the housing cover in the dish washing machine according to an exemplary embodiment.
- FIG. 6 is a rear view of the housing cover of the dish washing machine according to an exemplary embodiment.
- FIG. 7 is an exploded perspective view illustrating a state in which injection nozzles are separated from the sump unit of the dish washing machine according to an exemplary embodiment.
- the sump unit 100 includes a sump housing 10 to define an outer appearance of the sump unit 100 , and a washing pump 20 to pump wash water, a guide member 30 mounted to the sump housing 10 , to guide a flow of the wash water pumped by the washing pump 20 .
- the housing cover 40 is also included in the sump unit 10 , to cover the sump housing 10 .
- a garbage chamber 45 is defined in the housing cover 40 .
- the sump housing 10 has a substantially circular structure, and is downwardly recessed to accommodate various constituent elements.
- a plurality of first coupling ribs 12 are protruded from a peripheral edge of the sump housing 10 , in order to couple the guide member 30 and housing cover 40 to the sump housing 10 .
- a part of the first coupling ribs 12 are coupled with the guide member 30 , and the remaining part of the first coupling ribs 12 are coupled to second coupling ribs 40 b formed at a lower surface of the housing cover 40 ( FIG. 6 ).
- the second coupling ribs 40 b will be described later.
- the washing pump 20 is mounted at a position spaced apart from a central portion A of the sump housing 10 in one radial direction.
- a heater 60 to heat wash water is mounted at a position spaced apart from the central portion A of the sump housing 10 in opposite to the washing pump 20 .
- the washing pump 20 includes a pump motor 21 fixedly mounted to the sump housing 10 beneath the sump housing 10 , and an impeller 22 fixedly mounted to a rotating shaft of the pump motor 21 .
- a cutting unit 24 to cut garbage may be arranged between the pump motor 21 and the impeller 22 .
- the pump motor 21 is mounted to the bottom of the sump housing 10 at the outside of the sump housing 10 .
- the rotating shaft of the pump motor 21 is upwardly protruded through the bottom of the sump housing 10 .
- a sealing member 23 is arranged on the bottom of the sump housing 10 such that it surrounds the rotating shaft of the pump motor 21 , to prevent wash water from being leaked toward the pump motor 21 .
- the impeller 22 is arranged on an upper surface of the guide member 30 while having a structure capable of axially receiving wash water, and then radially discharging the wash water.
- the cutting unit 24 functions to cut contaminants such as garbage introduced into the sump unit 100 into fragments.
- the cutting unit 24 includes a cutter 25 coupled to the rotating shaft of the pump motor 21 such that it is rotated in accordance with rotation of the rotating shaft, and a garbage filter 26 arranged over the cutter 25 , to prevent relatively-large lumps of garbage from being introduced into the impeller 22 .
- the heater 60 is mounted to the sump housing 10 , in order to enhance a cleaning performance of wash water.
- the sump housing 10 is formed with a heater installation recess 11 downwardly concaved while having a size corresponding to the heater 60 .
- the heater 60 is accommodated in the heater installation recess 11 .
- washing pump 20 is arranged at a position spaced apart from the central portion A of the sump housing 10 by a certain distance, it is possible to secure a space capable of providing the heater installation recess 11 at the bottom of the sump housing 10 .
- the heater 60 is received in the heater installation recess 11 formed at a lowest position of the space of the sump housing 10 . Accordingly, even when the amount of wash water introduced into the sump housing 10 is relatively small, the level of the wash water may be higher than the installation level of the heater 60 , so that the heater 60 may not be exposed from the surface of the wash water. Thus, it may be possible to prevent the heater 60 from overheating.
- a drainage pump 50 and a drainage tube 51 are arranged beneath the sump housing 10 at one side of the sump housing 10 , to discharge wash water and garbage from the sump unit 100 to the outside of the dish washing machine ( FIGS. 1 and 3 ).
- the impeller 22 is mounted to the sump housing 10 .
- the guide member 30 is also mounted to the sump housing 10 , to guide a flow of the wash water discharged by the impeller 22 .
- the guide member 30 includes a through hole 31 to receive wash water from the sump housing 10 , a mounting portion 32 formed around the through hole 31 , to provide a mounting space for the impeller 22 , and channels 33 and 34 spirally defined around the mounting portion 32 .
- the garbage filter 26 is arranged beneath the through hole 31 , to prevent relatively-large lumps of garbage from being introduced into the impeller 22 .
- the impeller 22 functions to pump wash water from the sump housing 10 to the guide member 30 by upwardly sucking wash water introduced into the sump housing 10 and fine garbage contained in the wash water, and then radially discharging the wash water and garbage while rotating together with the rotating shaft of the pump motor 21 .
- the channels 33 and 34 may include a first channel, namely, the channel 33 , branched from the mounting portion 32 , to guide wash water to the first injection nozzle 3 a , and a second channel, namely, the channel 34 , branched from the mounting portion 32 , to guide wash water to the extension channel 9 .
- the first and second channels 33 and 34 extend spirally around the mounting portion 32 .
- the first channel 33 extends toward the central portion of the sump unit 100
- the second channel 34 extends toward a peripheral edge of the sump unit 100 .
- the first channel 33 is formed to directly supply a flow of water discharged from the impeller 22 to the first injection nozzle 3 a , without using a separate channel member.
- the second channel 34 is divided into a first branched channel 35 communicating with the first extension channel 8 a , and a second branched channel 36 communicating the second extension channel 8 b.
- a valve 37 is pivotally installed in the second channel 34 .
- the valve 37 functions to selectively open and close the first and second branched channels 35 and 36 .
- valve 37 opens the second branched channel 36 while closing the first branched channel 35 .
- wash water flows only through the second branched channel 36 , to supply the wash water to the second extension channel 8 b .
- the wash water supplied to the second extension channel 8 b is injected through the auxiliary injection nozzle 7 , to wash the dishes.
- the valve 37 opens the first branched channel 35 while closing the second branched channel 36 .
- wash water flows only through the first branched channel 35 , to supply the wash water to the first extension channel 8 a .
- the wash water supplied to the first extension channel 8 a is injected through the second and third injection nozzles 3 b and 3 c , to wash the dishes.
- the housing cover 40 is arranged over the guide member 30 . As described above, the housing cover 40 covers the top of the sump housing 10 , in which the guide member 30 is placed.
- a through hole 41 is formed through a central portion of the housing cover 40 .
- the through hole 41 communicates with the first channel 33 , to allow the wash water from the first channel 33 to be supplied to the first injection nozzle 3 a .
- the garbage chamber 45 is formed around the through hole 41 .
- An inlet 44 is circumferentially formed around a peripheral edge of the housing cover 40 , to allow the wash water from the washing tub 2 to be introduced into the sump unit 100 .
- the central portion A of the sump housing 10 in the sump housing 100 is axially aligned with one side of the first channel 33 in the guide member 30 and the through hole 41 of the housing cover 40 communicating directly with the one side of the first channel 33 .
- the housing cover 40 also includes a first coupling portion 42 to be coupled with the first extension channel 8 a for the supply of wash water to the auxiliary injection nozzle 7 , a second coupling portion 43 to be coupled with the second extension channel 8 b for the supply of wash water to the second and third injection nozzles 3 b and 3 c , and a third coupling portion 47 to be coupled with the bypass channel 9 .
- the garbage chamber 45 is formed at an upper surface of the housing cover 40 such that it is integrated with the housing cover 40 .
- a sampling hole 46 is provided at the housing cover 40 , to introduce wash water from the channels 33 and 34 of the guide member 30 to the upper surface of the housing cover 40 .
- a guide member 49 is arranged around the sampling hole 46 , to guide the wash water emerging from the sampling hole 46 to smoothly flow toward the garbage chamber 45 .
- Fine garbage introduced into the guide member 30 via the garbage filter 26 by the impeller 22 after being cut by the cutter 25 is subsequently introduced into the garbage chamber 45 in the housing cover 40 through the opening 46 , together with the wash water.
- the garbage chamber 45 collects the fine garbage introduced into the above-described manner, together with the wash water.
- An outlet 48 is formed at the garbage chamber 45 .
- the outlet 48 is connected to the drainage pump 50 .
- garbage collected in the garbage chamber 45 is discharged into the drainage tube 51 , so that it is automatically drained to the outside of the dish washing machine.
- the top of the garbage chamber 45 is connected to the bypass channel 9 , so that the wash water in the bypass channel 9 rises or falls in accordance with an inner water pressure of the garbage chamber 45 .
- a rib 40 a is protruded from the lower surface of the housing cover 40 such that it has a shape corresponding to the shape of the guide member 30 .
- the rib 40 a is coupled with a peripheral edge of the guide member 30 , thereby defining the channels 33 and 34 .
- a plurality of second coupling ribs 40 b are formed at the lower surface of the housing cover 40 near a peripheral edge of the housing cover 40 .
- a part of the second coupling ribs 40 b are coupled with the first coupling ribs 12 of the sump housing 10 , and the remaining part of the second coupling ribs 40 b are coupled with the guide member 30 .
- the sump unit 100 further includes a mesh-shaped filter cover 70 provided at the top of the housing cover 40 , to prevent the garbage collected in the garbage chamber 45 from overflowing the garbage chamber 45 while allowing only the wash water in the garbage chamber 45 to flow outwardly from the garbage chamber 45 .
- the filter cover 70 includes a mesh filter 71 . As the filter cover 70 is mounted on the top of the housing cover 40 , it prevents garbage contained in the garbage chamber 45 of the housing cover 40 from being upwardly discharged from the garbage chamber 45 , together with the wash water discharged from the garbage chamber 45 .
- a fitting hole 72 is formed at a central portion of the filter cover 70 .
- the first injection nozzle 3 a is fitted in the fitting hole 72 .
- the first injection nozzle 3 a is also rotatably coupled to the through hole 41 .
- the wash water in the first channel 33 rises upward due to a water pressure generated in accordance with the operation of the impeller 22 , so that it is supplied to the first injection nozzle 3 a through the through hole 41 of the housing cover 40 .
- the wash water in the second channel 34 rises upward due to the water pressure, so that it may be selectively introduced into the first extension channel 8 a or second extension channel 8 b through the first coupling portion 42 or second coupling portion 43 .
- the wash water is supplied to the auxiliary injection nozzle 7 or the second and third injection nozzles 3 b and 3 c.
- the first channel 33 to guide a flow of water discharged from the impeller 22 to the through hole 41 of the housing cover 40 , to which a rotating shaft of the first injection nozzle 3 a is mounted may be formed at the guide member 30 , to which the impeller 22 is mounted, because the impeller 22 is arranged at a position eccentric from the central portion of the sump unit 100 . It may also be possible to form the garbage chamber 45 in the housing cover 40 .
- the garbage chamber 45 may be formed in the housing cover 40 to cover the guide member 30 and sump housing 10 , without any separate configuration.
- the sump unit uses a reduced number of constituent elements, as compared to conventional sump units.
- the number of constituent elements may be reduced, the number of coupling portions of the constituent elements may also be reduced. As result, the possibility of leakage of wash water at the coupling portions may be reduced.
- the structure of inner channels may be relatively simplified. As a result, a reduction in the flow resistance of wash water may be achieved.
- the sump unit may be compact, the volume thereof may be reduced. Accordingly, it may be possible to increase the washing space of the washing tub.
- the cleaning operation for the garbage chamber may be implemented by separating only the filter cover, because the garbage chamber is formed in the housing cover.
- Wash water supplied to the washing tub 2 via the injection nozzles 5 or water supply port 6 is introduced into the sump unit 100 through the inlet 44 of the housing cover 40 .
- the introduced water is then heated by the heater 60 .
- the wash water pumped in the above-described manner flows radially after being discharged from the mounting portion 32 by the rotating force of the impeller 22 , so that it is introduced into the first and second channels 33 and 34 .
- the wash water introduced into the first channel 33 flows in a direction indicated by an arrow A in FIG. 4 , so that it is introduced into the first injection nozzle 3 a via the through hole 41 of the housing cover 40 and the fitting hole 72 of the filter cover 70 , as shown in FIGS. 5 and 7 .
- the wash water introduced into the second channel 34 flows in a direction indicated by an arrow B in FIG. 4 .
- the wash water in the second channel 34 is then introduced into the first extension channel 8 a or second extension channel 8 b via the first coupling portion 42 or second coupling portion 43 of the housing cover 40 in accordance with an operation of the valve 37 , so that it is supplied to the auxiliary injection nozzle 7 or to the second and third injection nozzles 3 b and 3 c.
- Wash water and a part of garbage in the channels 33 and 34 flow in a direction indicated by an arrow C in FIG. 4 , and then are discharged from the top of the housing cover 40 via the sampling hole 46 .
- the discharged wash water and garbage are guided by the guide member 49 , to be introduced into the garbage chamber 45 , as shown in FIG. 5 .
- the wash water and garbage introduced into the garbage chamber 45 are fed to the mesh filter 71 by virtue of a pressure of following wash water.
- the wash water is again introduced into the sump housing 10 via the inlet 44 after passing through the mesh filter 71 , as shown in FIG. 7 .
- the garbage may not pass through the mesh filter 71 , so that it may be left in the garbage chamber 45 .
- the drainage pump 50 When a certain amount of garbage is accumulated in the garbage chamber 45 , the drainage pump 50 operates to outwardly discharge the garbage from the garbage chamber 45 .
- the garbage chamber may be formed in the housing cover to cover the sump housing and guide member. Accordingly, the number of constituent elements of the sump unit may be reduced. As a result, the number of coupling portions of the constituent elements may also be reduced, thereby reducing the possibility of leakage of wash water at the coupling portions.
- the structure of inner channels may be relatively simplified. As a result, a reduction in the flow resistance of wash water may be achieved.
- the sump unit may be compact, the volume thereof may be reduced. Accordingly, it may be possible to increase the washing space of the washing tub.
- the cleaning operation for the garbage chamber may be implemented by separating only the filter cover, because the garbage chamber is formed in the housing cover.
Landscapes
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Washing And Drying Of Tableware (AREA)
Abstract
Disclosed herein is a dish washing machine including a sump unit capable of reducing the number of elements thereof, and minimizing the number of coupling portions of the elements. The dish washing machine includes a washing tub, a sump unit arranged in the washing tub, and at least one injection nozzle to inject wash water into the washing tub. The sump unit includes a sump housing, an impeller to pump wash water from the sump housing, a guide member, to which the sump housing is mounted, the guide member guiding the wash water pumped by the impeller directly to the at least one injection nozzle, and a housing cover to cover the sump housing and the guide member. The housing cover is formed with a garbage chamber to collect garbage contained in the wash water.
Description
- This application claims the priority benefit of Korean Patent Application No. 2008-126183, filed on Dec. 11, 2008 in the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference.
- 1. Field
- Exemplary embodiments relate to a dish washing machine including a sump unit to store wash water, and to supply the wash water to an injection nozzle via an inner channel by rotating an impeller.
- 2. Description of the Related Art
- Generally, a dish washing machine includes a body provided with a washing tub, a dish basket arranged in the washing tub, an injection nozzle to inject wash water onto the dish basket, and a sump unit connected to the injection nozzle, to pump the wash water to the injection nozzle.
- The sump unit included in such a conventional dish washing machine includes a sump housing, an impeller arranged in the sump housing, an impeller housing, to which the impeller is mounted, and in which a garbage chamber to collect garbage contained in the wash water in a mixed state is defined, and an impeller housing cover to close the impeller housing. The impeller housing cover is formed with a channel to guide wash water to an injection nozzle. The sump unit also includes a sump cover to cover the sump housing, a filter cover mounted to the sump cover, and provided with a filter to filter the wash water introduced into the garbage chamber such that the garbage is separated from the wash water, and a drainage pump connected to the garbage chamber.
- In such a conventional sump unit, the impeller housing, impeller housing cover, sump cover, filter cover, etc. are assembled in the sump housing in a stacked state. However, a complicated assembly process may be required because a large number of constituent elements are assembled. Also, an increase in manufacturing costs may occur due to an increased number of elements to be assembled and an increased number of assembly processes. Furthermore, the number of coupling portions of elements may be increased. For this reason, the possibility of leakage of wash water at the coupling portions may be increased.
- Since a large number of constituent elements are coupled in a stacked state, the structure of inner channels defined in the sump unit is complicated. As a result, an increase in the flow resistance of wash water may occur.
- The increased number of elements may cause an increase in the volume of the sump unit. As a result, the washing space defined in the washing tub may be relatively reduced in volume.
- In such a conventional dish washing machine, the garbage chamber is provided in the impeller housing arranged at a relatively low position. For this reason, it may be necessary to disassemble the entire portion of the sump unit when garbage is excessively accumulated in or fixed to the garbage chamber.
- It is an aspect of exemplary embodiments to provide a dish washing machine including a sump unit capable of reducing the number of elements thereof, and minimizing the number of coupling portions of the elements.
- It is another aspect of exemplary embodiments to provide a dish washing machine including a sump unit having a simple inner channel structure.
- It is another aspect of exemplary embodiments to provide a dish washing machine including a sump unit having a compact structure to increase a washing space of a washing tub.
- It is a further aspect of exemplary embodiments is to provide a dish washing machine including a sump unit having a structure capable of easily removing garbage, etc. fixed to a garbage chamber.
- In accordance with one aspect of exemplary embodiments, a dish washing machine includes a washing tub, a sump unit arranged in the washing tub, and at least one injection nozzle to inject wash water into the washing tub, wherein the sump unit includes a sump housing, an impeller to pump wash water from the sump housing, a guide member, to which the sump housing is mounted, the guide member guiding the wash water pumped by the impeller directly to the at least one injection nozzle, and a housing cover to cover the sump housing and the guide member, the housing cover being formed with a garbage chamber to collect garbage contained in the wash water.
- The at least one injection nozzle may be rotatably coupled to a central portion of the housing cover. The impeller may be arranged at a position laterally spaced apart from the central portion of the housing cover.
- The guide member may include a mounting portion, to which the impeller is mounted, and a channel extending spirally from a center of the mounting portion.
- The at least one injection nozzle may include a plurality of injection nozzles. The plurality of injection nozzles may include a first injection nozzle directly connected to the sump unit, and a second injection nozzle connected to the sump unit via an extension channel.
- The channel may be branched into a first channel to guide a flow of water to the first injection nozzle, and a second channel to guide a flow of water to the extension channel.
- The sump unit may further include a valve arranged in the second channel, to open or close the second channel.
- The housing cover may include a sampling hole to allow wash water to flow from the channel to the garbage chamber.
- The housing cover may further include a guide member to guide, to the garbage chamber, wash water introduced into the top of the housing cover via the sampling hole.
- The sump housing may include a plurality of coupling ribs. A part of the coupling ribs may be coupled with the guide member, and the remaining part of the coupling ribs may be coupled with the housing cover.
- In accordance with another aspect of exemplary embodiments, a dish washing machine includes a washing tub, a sump unit arranged in the washing tub, and an injection nozzle rotatably coupled to the sump unit, wherein the sump unit includes a sump housing, an impeller to pump wash water from the sump housing, a guide member, to which the sump housing is mounted, a housing cover to cover the sump housing and the guide member, and a garbage chamber to collect garbage contained in the wash water introduced along the guide member, and the housing cover and the garbage chamber are integrally formed.
- The sump housing may include a plurality of coupling ribs. A part of the coupling ribs may be coupled with the guide member, and the remaining part of the coupling ribs may be coupled with the housing cover.
- The guide member may include a channel to directly guide the wash water to the injection nozzle.
- The impeller may have a rotating axis arranged at a position spaced apart from a rotating center of the injection nozzle.
- The housing cover may include a sampling hole to allow wash water to flow from the guide member to the garbage chamber.
- The housing cover may further include a guide member to guide wash water introduced into a top of the housing cover via the sampling hole.
- In accordance with another aspect of exemplary embodiments, a dish washing machine includes a washing tub, a sump housing arranged at a bottom of the washing tub, an impeller to pump wash water from the sump housing, a guide member including a mounting portion, to which the impeller is mounted, and a channel extending outwardly in a radial direction of the mounting portion, and a housing cover to cover the guide member and the sump housing, the housing cover being formed with a garbage chamber to collect garbage contained in the wash water.
- The dish washing machine may further include an injection nozzle rotatably mounted to the housing cover, to supply wash water to the washing tub.
- The channel may guide a flow of water discharged from the impeller directly to a rotating center of the injection nozzle.
- The sump housing may include a plurality of coupling ribs. A part of the coupling ribs may be coupled with the guide member, and the remaining part of the coupling ribs may be coupled with the housing cover.
- These and/or other aspects of exemplary embodiments will become apparent and more readily appreciated from the following description of exemplary embodiments, taken in conjunction with the accompanying drawings of which:
-
FIG. 1 is a lateral sectional view of a dish washing machine according to an exemplary embodiment; -
FIG. 2 is a perspective view schematically illustrating an interior of the dish washing machine according to an exemplary embodiment; -
FIG. 3 is an exploded perspective view of a sump unit of the dish washing machine according to an exemplary embodiment; -
FIG. 4 is an exploded perspective view illustrating in a state in which a housing cover is separated from the sump unit in the dish washing machine according to exemplary embodiment; -
FIG. 5 is a perspective view illustrating a flow of wash water on the housing cover in the dish washing machine according to an exemplary embodiment; -
FIG. 6 is a rear view of the housing cover of the dish washing machine according to an exemplary embodiment; and -
FIG. 7 is an exploded perspective view illustrating a state in which injection nozzles are separated from the sump unit of the dish washing machine according to an exemplary embodiment. - Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
-
FIG. 1 is a lateral sectional view of a dish washing machine according to an exemplary embodiment.FIG. 2 is a perspective view schematically illustrating the interior of the dish washing machine according to an exemplary embodiment. - As shown in
FIGS. 1 and 2 , the dish washing machine according to an exemplary embodiment includes abody 1 to define an outer appearance of the dish washing machine, adoor 1 a rotatably coupled to a front wall of thebody 1, and awashing tub 2 arranged in thebody 1. The dish washing machine also includes asump unit 100 arranged on the bottom of thewashing tub 2, to contain wash water and to pump the contained wash water, and injection nozzles 3, in detail,injection nozzles sump unit 100 into thewashing tub 2. -
Racks 4, in detail, racks 4 a and 4 b, are arranged in thewashing tub 2 such that they may be loaded in and unloaded from thewashing tub 2. - The
racks 4 include an upper rack, namely, therack 4 a, arranged at an upper portion of thewashing tub 2, and a lower rack, namely, therack 4 b, arranged at a lower portion of thewashing tub 2. Theracks washing tub 2. -
Dish baskets 5, in detail,dish baskets lower racks dish baskets 5. - A
water supply port 6 is provided at one side wall of thewashing tub 2, to enable wash water supplied from a water supply source to be introduced into thewashing tub 2. The wash water supplied through thewater supply port 6 falls to the bottom of thewashing tub 2, and is then introduced into thesump unit 100 via aninlet 44 formed through ahousing cover 40 of thesump unit 100. Thehousing cover 40 will be described later. - The injection nozzles 3 are arranged such that they are rotatable by an injection pressure of injected wash water. The injection nozzles 3 may include a first injection nozzle, namely, the
injection nozzle 3 a, arranged between thesump unit 100 and thelower rack 4 b, a second injection nozzle, namely, the injection nozzle 3 b, arranged between the upper andlower racks injection nozzle 3 c, arranged over theupper rack 4 a. - The
first injection nozzle 3 a is directly connected to a central portion of the top of thesump unit 100 while being rotatable, to inject a part of wash water pumped from thesump unit 100 toward thedish basket 5 b arranged adjacent to thefirst injection nozzle 3 a. - The second and
third injection nozzles 3 b and 3 c inject the remaining part of the wash water pumped from thesump unit 100 toward thedish baskets third injection nozzles 3 b and 3 c, respectively. - An auxiliary injection nozzle 7 may also be arranged at a lower portion of the
washing tub 2 adjacent to one side of thewashing tub 2 in the illustrated embodiment. The auxiliary injection nozzle 7 injects wash water to a dead area where the wash water injected from the injection nozzles 3 may not reach, to achieve an enhancement in washing efficiency. - The injection directions of the injection nozzles 3 and auxiliary injection nozzle 7 are directed to the associated
dish baskets 5. The wash water injected from the injection nozzles 3 and auxiliary injection nozzle 7 strikes dishes placed in thedish baskets 5, thereby generating high washing effects. - The second and
third injection nozzles 3 b and 3 c, and the auxiliary injection nozzle 7 are connected to thesump unit 100 via extension channels 8, respectively. The extension channels 8 include afirst extension channel 8 a to connect the auxiliary injection nozzle 7 to thesump unit 100, and asecond extension channel 8 b extending along a rear wall of thewashing tub 2, to connect the second andthird injection nozzles 3 b and 3 c to thesump unit 100. - The extension channels 8 are connected to the
sump unit 100, to guide wash water flowing in accordance with a high pumping pressure of thesump unit 100 such that the wash water is supplied to the auxiliary injection nozzle 7 and second andthird injection nozzles 3 b and 3 c. - A
bypass channel 9 is arranged at one side of thesecond extension channel 8 b such that thebypass channel 9 andsecond extension channel 8 b extend in parallel. - A
bypass tube 9 a is provided at one end, namely, a lower end, of thebypass channel 9, to receive wash water from agarbage chamber 45, which will be described later. At the other end, namely, an upper end, of thebypass channel 9, ahole 9 b is formed to allow the wash water rising along thebypass channel 9 to overflow toward thewashing tub 2. - The
bypass tube 9 a is provided to bypass a part of wash water when the pressure of the wash water is abnormally increased due to accumulation of contaminants such as garbage in thegarbage chamber 45. - A check valve may be arranged in the
bypass tube 9 a, to allow wash water introduced into thebypass tube 9 a to flow upwardly through thebypass tube 9 a when the pressure of the wash water is equal to or higher than a predetermined pressure. In the illustrated embodiment, however, the bypass of the wash water is achieved based on a height of the wash water in thebypass channel 9 varying in accordance with the pressure of the wash water, without using a check valve. - In the illustrated embodiment, the wash water introduced into the
bypass tube 9 a is maintained at a certain height in thebypass channel 9 when the water pressure in thesump unit 100 is lower than a predetermined pressure. However, when the water pressure in thesump unit 100 is equal to or higher than the predetermined pressure, the wash water in thebypass channel 9 rises along thebypass channel 9, so that it is discharged into thewashing tub 2 through thehole 9 b formed at the upper end of thebypass channel 9, thereby maintaining thegarbage chamber 45 at a desired pressure. - The
sump unit 100 is mounted on the bottom of thewashing tub 2. As described above, thesump unit 100 contains wash water, and pumps the wash water, to supply the wash water to the injection nozzles 3 and auxiliary injection nozzle 7. -
FIG. 3 is an exploded perspective view illustrating a configuration of the sump unit of the dish washing machine according to an exemplary embodiment.FIG. 4 is an exploded perspective view illustrating a state in which a housing cover is separated from the sump unit of the dish washing machine according to an exemplary embodiment.FIG. 5 is a perspective view illustrating a flow of wash water on the housing cover in the dish washing machine according to an exemplary embodiment.FIG. 6 is a rear view of the housing cover of the dish washing machine according to an exemplary embodiment.FIG. 7 is an exploded perspective view illustrating a state in which injection nozzles are separated from the sump unit of the dish washing machine according to an exemplary embodiment. - As shown in
FIG. 3 , thesump unit 100 includes asump housing 10 to define an outer appearance of thesump unit 100, and awashing pump 20 to pump wash water, aguide member 30 mounted to thesump housing 10, to guide a flow of the wash water pumped by thewashing pump 20. Thehousing cover 40 is also included in thesump unit 10, to cover thesump housing 10. Agarbage chamber 45 is defined in thehousing cover 40. - The
sump housing 10 has a substantially circular structure, and is downwardly recessed to accommodate various constituent elements. - A plurality of
first coupling ribs 12 are protruded from a peripheral edge of thesump housing 10, in order to couple theguide member 30 andhousing cover 40 to thesump housing 10. A part of thefirst coupling ribs 12 are coupled with theguide member 30, and the remaining part of thefirst coupling ribs 12 are coupled tosecond coupling ribs 40 b formed at a lower surface of the housing cover 40 (FIG. 6 ). Thesecond coupling ribs 40 b will be described later. - The
washing pump 20 is mounted at a position spaced apart from a central portion A of thesump housing 10 in one radial direction. Aheater 60 to heat wash water is mounted at a position spaced apart from the central portion A of thesump housing 10 in opposite to thewashing pump 20. - The
washing pump 20 includes apump motor 21 fixedly mounted to thesump housing 10 beneath thesump housing 10, and animpeller 22 fixedly mounted to a rotating shaft of thepump motor 21. A cuttingunit 24 to cut garbage may be arranged between thepump motor 21 and theimpeller 22. - The
pump motor 21 is mounted to the bottom of thesump housing 10 at the outside of thesump housing 10. The rotating shaft of thepump motor 21 is upwardly protruded through the bottom of thesump housing 10. - A sealing
member 23 is arranged on the bottom of thesump housing 10 such that it surrounds the rotating shaft of thepump motor 21, to prevent wash water from being leaked toward thepump motor 21. - The
impeller 22 is arranged on an upper surface of theguide member 30 while having a structure capable of axially receiving wash water, and then radially discharging the wash water. - The cutting
unit 24 functions to cut contaminants such as garbage introduced into thesump unit 100 into fragments. The cuttingunit 24 includes acutter 25 coupled to the rotating shaft of thepump motor 21 such that it is rotated in accordance with rotation of the rotating shaft, and agarbage filter 26 arranged over thecutter 25, to prevent relatively-large lumps of garbage from being introduced into theimpeller 22. - The
heater 60 is mounted to thesump housing 10, in order to enhance a cleaning performance of wash water. Thesump housing 10 is formed with aheater installation recess 11 downwardly concaved while having a size corresponding to theheater 60. Theheater 60 is accommodated in theheater installation recess 11. - Since the
washing pump 20 is arranged at a position spaced apart from the central portion A of thesump housing 10 by a certain distance, it is possible to secure a space capable of providing theheater installation recess 11 at the bottom of thesump housing 10. - The
heater 60 is received in theheater installation recess 11 formed at a lowest position of the space of thesump housing 10. Accordingly, even when the amount of wash water introduced into thesump housing 10 is relatively small, the level of the wash water may be higher than the installation level of theheater 60, so that theheater 60 may not be exposed from the surface of the wash water. Thus, it may be possible to prevent theheater 60 from overheating. - A
drainage pump 50 and adrainage tube 51 are arranged beneath thesump housing 10 at one side of thesump housing 10, to discharge wash water and garbage from thesump unit 100 to the outside of the dish washing machine (FIGS. 1 and 3 ). - The
impeller 22 is mounted to thesump housing 10. Theguide member 30 is also mounted to thesump housing 10, to guide a flow of the wash water discharged by theimpeller 22. - As shown in
FIGS. 3 and 4 , theguide member 30 includes a throughhole 31 to receive wash water from thesump housing 10, a mountingportion 32 formed around the throughhole 31, to provide a mounting space for theimpeller 22, andchannels portion 32. - The
garbage filter 26 is arranged beneath the throughhole 31, to prevent relatively-large lumps of garbage from being introduced into theimpeller 22. - The
impeller 22 functions to pump wash water from thesump housing 10 to theguide member 30 by upwardly sucking wash water introduced into thesump housing 10 and fine garbage contained in the wash water, and then radially discharging the wash water and garbage while rotating together with the rotating shaft of thepump motor 21. - The
channels channel 33, branched from the mountingportion 32, to guide wash water to thefirst injection nozzle 3 a, and a second channel, namely, thechannel 34, branched from the mountingportion 32, to guide wash water to theextension channel 9. - The first and
second channels portion 32. Thefirst channel 33 extends toward the central portion of thesump unit 100, whereas thesecond channel 34 extends toward a peripheral edge of thesump unit 100. - The
first channel 33 is formed to directly supply a flow of water discharged from theimpeller 22 to thefirst injection nozzle 3 a, without using a separate channel member. - The
second channel 34 is divided into a firstbranched channel 35 communicating with thefirst extension channel 8 a, and a secondbranched channel 36 communicating thesecond extension channel 8 b. - A
valve 37 is pivotally installed in thesecond channel 34. Thevalve 37 functions to selectively open and close the first and secondbranched channels - When the amount of dishes to be washed is large, the
valve 37 opens the secondbranched channel 36 while closing the firstbranched channel 35. In this case, wash water flows only through the secondbranched channel 36, to supply the wash water to thesecond extension channel 8 b. The wash water supplied to thesecond extension channel 8 b is injected through the auxiliary injection nozzle 7, to wash the dishes. - On the other hand, when the amount of dishes to be washed is small, the
valve 37 opens the firstbranched channel 35 while closing the secondbranched channel 36. In this case, wash water flows only through the firstbranched channel 35, to supply the wash water to thefirst extension channel 8 a. The wash water supplied to thefirst extension channel 8 a is injected through the second andthird injection nozzles 3 b and 3 c, to wash the dishes. - The
housing cover 40 is arranged over theguide member 30. As described above, thehousing cover 40 covers the top of thesump housing 10, in which theguide member 30 is placed. - As shown in
FIGS. 3 and 5 , a throughhole 41 is formed through a central portion of thehousing cover 40. The throughhole 41 communicates with thefirst channel 33, to allow the wash water from thefirst channel 33 to be supplied to thefirst injection nozzle 3 a. Thegarbage chamber 45 is formed around the throughhole 41. Aninlet 44 is circumferentially formed around a peripheral edge of thehousing cover 40, to allow the wash water from thewashing tub 2 to be introduced into thesump unit 100. - The central portion A of the
sump housing 10 in thesump housing 100 is axially aligned with one side of thefirst channel 33 in theguide member 30 and the throughhole 41 of thehousing cover 40 communicating directly with the one side of thefirst channel 33. - The
housing cover 40 also includes afirst coupling portion 42 to be coupled with thefirst extension channel 8 a for the supply of wash water to the auxiliary injection nozzle 7, asecond coupling portion 43 to be coupled with thesecond extension channel 8 b for the supply of wash water to the second andthird injection nozzles 3 b and 3 c, and athird coupling portion 47 to be coupled with thebypass channel 9. - The
garbage chamber 45 is formed at an upper surface of thehousing cover 40 such that it is integrated with thehousing cover 40. - A
sampling hole 46 is provided at thehousing cover 40, to introduce wash water from thechannels guide member 30 to the upper surface of thehousing cover 40. Aguide member 49 is arranged around thesampling hole 46, to guide the wash water emerging from thesampling hole 46 to smoothly flow toward thegarbage chamber 45. - Fine garbage introduced into the
guide member 30 via thegarbage filter 26 by theimpeller 22 after being cut by thecutter 25 is subsequently introduced into thegarbage chamber 45 in thehousing cover 40 through theopening 46, together with the wash water. Thegarbage chamber 45 collects the fine garbage introduced into the above-described manner, together with the wash water. - An
outlet 48 is formed at thegarbage chamber 45. Theoutlet 48 is connected to thedrainage pump 50. When thedrainage pump 50 operates, garbage collected in thegarbage chamber 45 is discharged into thedrainage tube 51, so that it is automatically drained to the outside of the dish washing machine. The top of thegarbage chamber 45 is connected to thebypass channel 9, so that the wash water in thebypass channel 9 rises or falls in accordance with an inner water pressure of thegarbage chamber 45. - As shown in
FIG. 6 , arib 40 a is protruded from the lower surface of thehousing cover 40 such that it has a shape corresponding to the shape of theguide member 30. Therib 40 a is coupled with a peripheral edge of theguide member 30, thereby defining thechannels second coupling ribs 40 b are formed at the lower surface of thehousing cover 40 near a peripheral edge of thehousing cover 40. A part of thesecond coupling ribs 40 b are coupled with thefirst coupling ribs 12 of thesump housing 10, and the remaining part of thesecond coupling ribs 40 b are coupled with theguide member 30. - The
sump unit 100 further includes a mesh-shaped filter cover 70 provided at the top of thehousing cover 40, to prevent the garbage collected in thegarbage chamber 45 from overflowing thegarbage chamber 45 while allowing only the wash water in thegarbage chamber 45 to flow outwardly from thegarbage chamber 45. - The
filter cover 70 includes amesh filter 71. As thefilter cover 70 is mounted on the top of thehousing cover 40, it prevents garbage contained in thegarbage chamber 45 of thehousing cover 40 from being upwardly discharged from thegarbage chamber 45, together with the wash water discharged from thegarbage chamber 45. - A
fitting hole 72 is formed at a central portion of thefilter cover 70. Thefirst injection nozzle 3 a is fitted in thefitting hole 72. Thefirst injection nozzle 3 a is also rotatably coupled to the throughhole 41. The wash water in thefirst channel 33 rises upward due to a water pressure generated in accordance with the operation of theimpeller 22, so that it is supplied to thefirst injection nozzle 3 a through the throughhole 41 of thehousing cover 40. - Similarly, the wash water in the
second channel 34 rises upward due to the water pressure, so that it may be selectively introduced into thefirst extension channel 8 a orsecond extension channel 8 b through thefirst coupling portion 42 orsecond coupling portion 43. In this case, accordingly, the wash water is supplied to the auxiliary injection nozzle 7 or the second andthird injection nozzles 3 b and 3 c. - Thus, in the dish washing machine according to an exemplary embodiment, the
first channel 33 to guide a flow of water discharged from theimpeller 22 to the throughhole 41 of thehousing cover 40, to which a rotating shaft of thefirst injection nozzle 3 a is mounted, may be formed at theguide member 30, to which theimpeller 22 is mounted, because theimpeller 22 is arranged at a position eccentric from the central portion of thesump unit 100. It may also be possible to form thegarbage chamber 45 in thehousing cover 40. - In an exemplary embodiment, accordingly, the
garbage chamber 45 may be formed in thehousing cover 40 to cover theguide member 30 andsump housing 10, without any separate configuration. Thus, the sump unit uses a reduced number of constituent elements, as compared to conventional sump units. - Since the number of constituent elements may be reduced, the number of coupling portions of the constituent elements may also be reduced. As result, the possibility of leakage of wash water at the coupling portions may be reduced.
- As the constituent elements, the number of which may be reduced, are coupled in a stacked state, the structure of inner channels may be relatively simplified. As a result, a reduction in the flow resistance of wash water may be achieved.
- Also, since the sump unit may be compact, the volume thereof may be reduced. Accordingly, it may be possible to increase the washing space of the washing tub.
- In addition, when the garbage chamber is to be cleaned, in order to remove garbage fixed thereto, the cleaning operation for the garbage chamber may be implemented by separating only the filter cover, because the garbage chamber is formed in the housing cover.
- Hereinafter, operation of an exemplary embodiment will be described with reference to the accompanying drawings.
- Wash water supplied to the
washing tub 2 via theinjection nozzles 5 orwater supply port 6 is introduced into thesump unit 100 through theinlet 44 of thehousing cover 40. The introduced water is then heated by theheater 60. - When the
pump motor 21 operates, relatively-large lumps of garbage contained in the wash water are cut into smaller lumps by thecutter 25 coupled to the rotating shaft of thepump motor 21. Fine garbage having a size capable of passing through thegarbage filter 26 is fed to theguide member 30, together with the wash water, in accordance with the operation of theimpeller 22, as shown inFIG. 4 . - The wash water pumped in the above-described manner flows radially after being discharged from the mounting
portion 32 by the rotating force of theimpeller 22, so that it is introduced into the first andsecond channels - The wash water introduced into the
first channel 33 flows in a direction indicated by an arrow A inFIG. 4 , so that it is introduced into thefirst injection nozzle 3 a via the throughhole 41 of thehousing cover 40 and thefitting hole 72 of thefilter cover 70, as shown inFIGS. 5 and 7 . - On the other hand, the wash water introduced into the
second channel 34 flows in a direction indicated by an arrow B inFIG. 4 . As shown inFIGS. 5 and 7 , the wash water in thesecond channel 34 is then introduced into thefirst extension channel 8 a orsecond extension channel 8 b via thefirst coupling portion 42 orsecond coupling portion 43 of thehousing cover 40 in accordance with an operation of thevalve 37, so that it is supplied to the auxiliary injection nozzle 7 or to the second andthird injection nozzles 3 b and 3 c. - Wash water and a part of garbage in the
channels FIG. 4 , and then are discharged from the top of thehousing cover 40 via thesampling hole 46. The discharged wash water and garbage are guided by theguide member 49, to be introduced into thegarbage chamber 45, as shown inFIG. 5 . - The wash water and garbage introduced into the
garbage chamber 45 are fed to themesh filter 71 by virtue of a pressure of following wash water. The wash water is again introduced into thesump housing 10 via theinlet 44 after passing through themesh filter 71, as shown inFIG. 7 . On the other hand, the garbage may not pass through themesh filter 71, so that it may be left in thegarbage chamber 45. - When a certain amount of garbage is accumulated in the
garbage chamber 45, thedrainage pump 50 operates to outwardly discharge the garbage from thegarbage chamber 45. - In the dish washing machine according to an exemplary embodiment, the garbage chamber may be formed in the housing cover to cover the sump housing and guide member. Accordingly, the number of constituent elements of the sump unit may be reduced. As a result, the number of coupling portions of the constituent elements may also be reduced, thereby reducing the possibility of leakage of wash water at the coupling portions.
- As the constituent elements, the number of which may be reduced, are coupled in a stacked state, the structure of inner channels may be relatively simplified. As a result, a reduction in the flow resistance of wash water may be achieved.
- Also, since the sump unit may be compact, the volume thereof may be reduced. Accordingly, it may be possible to increase the washing space of the washing tub.
- In addition, when the garbage chamber is to be cleaned, in order to remove garbage fixed thereto, the cleaning operation for the garbage chamber may be implemented by separating only the filter cover, because the garbage chamber is formed in the housing cover.
- Although a few exemplary embodiments have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these exemplary embodiments without departing from the principles and spirit of the disclosure, the scope of which is defined in the claims and their equivalents.
Claims (19)
1. A dish washing machine comprising a washing tub, a sump unit arranged in the washing tub, and at least one injection nozzle to inject wash water into the washing tub, wherein the sump unit comprises:
a sump housing;
an impeller to pump wash water from the sump housing;
a guide member, to which the sump housing is mounted, the guide member guiding the wash water pumped by the impeller directly to the at least one injection nozzle; and
a housing cover to cover the sump housing and the guide member, the housing cover being formed with a garbage chamber to collect garbage contained in the wash water.
2. The dish washing machine according to claim 1 , wherein:
the at least one injection nozzle is rotatably coupled to a central portion of the housing cover; and
the impeller is arranged at a position laterally spaced apart from the central portion of the housing cover.
3. The dish washing machine according to claim 1 , wherein the guide member comprises a mounting portion, to which the impeller is mounted, and a channel extending spirally from a center of the mounting portion.
4. The dish washing machine according to claim 3 , wherein the at least one injection nozzle comprises a plurality of injection nozzles, and the plurality of injection nozzles comprise a first injection nozzle directly connected to the sump unit, and a second injection nozzle connected to the sump unit via an extension channel.
5. The dish washing machine according to claim 4 , wherein the channel is branched into a first channel to guide a flow of water to the first injection nozzle, and a second channel to guide a flow of water to the extension channel.
6. The dish washing machine according to claim 5 , wherein the sump unit further comprises a valve arranged in the second channel, to open or close the second channel.
7. The dish washing machine according to claim 3 , wherein the housing cover comprises a sampling hole to allow wash water to flow from the channel to the garbage chamber.
8. The dish washing machine according to claim 7 , wherein the housing cover further comprises a guide member to guide, to the garbage chamber, wash water introduced into the top of the housing cover via the sampling hole.
9. The dish washing machine according to claim 1 , wherein:
the sump housing comprises a plurality of coupling ribs; and
a part of the coupling ribs are coupled with the guide member, and the remaining part of the coupling ribs are coupled with the housing cover.
10. A dish washing machine comprising a washing tub, a sump unit arranged in the washing tub, and an injection nozzle rotatably coupled to the sump unit, wherein:
the sump unit comprises a sump housing, an impeller to pump wash water from the sump housing, a guide member, to which the sump housing is mounted, a housing cover to cover the sump housing and the guide member, and a garbage chamber to collect garbage contained in the wash water introduced along the guide member; and
the housing cover and the garbage chamber are integrally formed.
11. The dish washing machine according to claim 10 , wherein:
the sump housing comprises a plurality of coupling ribs; and
a part of the coupling ribs are coupled with the guide member, and the remaining part of the coupling ribs are coupled with the housing cover.
12. The dish washing machine according to claim 10 , wherein the guide member comprises a channel to directly guide the wash water to the injection nozzle.
13. The dish washing machine according to claim 10 , wherein the impeller has a rotating axis arranged at a position spaced apart from a rotating center of the injection nozzle.
14. The dish washing machine according to claim 10 , wherein the housing cover comprises a sampling hole to allow wash water to flow from the guide member to the garbage chamber.
15. The dish washing machine according to claim 14 , wherein the housing cover further comprises a guide member to guide wash water introduced into a top of the housing cover via the sampling hole.
16. A dish washing machine comprising:
a washing tub;
a sump housing arranged at a bottom of the washing tub;
an impeller to pump wash water from the sump housing;
a guide member comprising a mounting portion, to which the impeller is mounted, and a channel extending outwardly in a radial direction of the mounting portion; and
a housing cover to cover the guide member and the sump housing, the housing cover being formed with a garbage chamber to collect garbage contained in the wash water.
17. The dish washing machine according to claim 16 , further comprising:
an injection nozzle rotatably mounted to the housing cover, to supply wash water to the washing tub.
18. The dish washing machine according to claim 16 , wherein the channel guides a flow of water discharged from the impeller directly to a rotating center of the injection nozzle.
19. The dish washing machine according to claim 16 , wherein:
the sump housing comprises a plurality of coupling ribs; and
a part of the coupling ribs are coupled with the guide member, and the remaining part of the coupling ribs are coupled with the housing cover.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080126183A KR20100067571A (en) | 2008-12-11 | 2008-12-11 | Dish washing machine |
KR10-2008-126183 | 2008-12-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20100147337A1 true US20100147337A1 (en) | 2010-06-17 |
Family
ID=42239076
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/585,965 Abandoned US20100147337A1 (en) | 2008-12-11 | 2009-09-29 | Dish washing machine |
Country Status (2)
Country | Link |
---|---|
US (1) | US20100147337A1 (en) |
KR (1) | KR20100067571A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITTO20120892A1 (en) * | 2012-10-11 | 2014-04-12 | Bitron Spa | COCKPIT, IN PARTICULAR FOR A DISHWASHER MACHINE, AND PROCEDURE FOR ITS MANUFACTURING. |
EP2862494A1 (en) * | 2013-10-14 | 2015-04-22 | E.G.O. Elektro-Gerätebau GmbH | Water-transporting household device |
WO2017114558A1 (en) * | 2015-12-29 | 2017-07-06 | Arcelik Anonim Sirketi | A dishwasher |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050022849A1 (en) * | 2003-07-31 | 2005-02-03 | Lg Electronic Inc. | Apparatus for controlling washing flow of dishwasher |
US20080011341A1 (en) * | 2006-07-12 | 2008-01-17 | Samsung Electronics Co., Ltd. | Dish washing machine |
US20080072934A1 (en) * | 2006-09-27 | 2008-03-27 | Joon Ho Pyo | Sump for dishwasher |
US20080072936A1 (en) * | 2006-09-27 | 2008-03-27 | Joon Ho Pyo | Sump for dishwasher |
US20100108110A1 (en) * | 2008-10-31 | 2010-05-06 | Samsung Electronics Co., Ltd. | Dish washing machine |
-
2008
- 2008-12-11 KR KR1020080126183A patent/KR20100067571A/en not_active Application Discontinuation
-
2009
- 2009-09-29 US US12/585,965 patent/US20100147337A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050022849A1 (en) * | 2003-07-31 | 2005-02-03 | Lg Electronic Inc. | Apparatus for controlling washing flow of dishwasher |
US20080011341A1 (en) * | 2006-07-12 | 2008-01-17 | Samsung Electronics Co., Ltd. | Dish washing machine |
US20080072934A1 (en) * | 2006-09-27 | 2008-03-27 | Joon Ho Pyo | Sump for dishwasher |
US20080072936A1 (en) * | 2006-09-27 | 2008-03-27 | Joon Ho Pyo | Sump for dishwasher |
US20100108110A1 (en) * | 2008-10-31 | 2010-05-06 | Samsung Electronics Co., Ltd. | Dish washing machine |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITTO20120892A1 (en) * | 2012-10-11 | 2014-04-12 | Bitron Spa | COCKPIT, IN PARTICULAR FOR A DISHWASHER MACHINE, AND PROCEDURE FOR ITS MANUFACTURING. |
WO2014057434A3 (en) * | 2012-10-11 | 2014-05-30 | Bitron S.P.A. | Sump, in particular for a dish washing machine, and method for manufacturing the same |
EP2862494A1 (en) * | 2013-10-14 | 2015-04-22 | E.G.O. Elektro-Gerätebau GmbH | Water-transporting household device |
WO2017114558A1 (en) * | 2015-12-29 | 2017-07-06 | Arcelik Anonim Sirketi | A dishwasher |
Also Published As
Publication number | Publication date |
---|---|
KR20100067571A (en) | 2010-06-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8684016B2 (en) | Dish washing machine | |
US7946304B2 (en) | Dish washing machine having sump with drainage channel to remove wash water | |
US9060667B2 (en) | Sump of dishwasher | |
US8449690B2 (en) | Sump of dish washer | |
KR101016311B1 (en) | Washing machine | |
US8673090B2 (en) | Dishwasher | |
CN101164490B (en) | Dishwasher | |
US20080072934A1 (en) | Sump for dishwasher | |
US7993472B2 (en) | Dish washing machine having pump motor and pump motor receiving part | |
US7963292B2 (en) | Dish washing machine preventing excessive water pressure | |
US20060118148A1 (en) | Soil jam preventing structure of dish washer | |
US20070119488A1 (en) | Dish washer with disc type passage control valve | |
RU2006140245A (en) | DISHWASHER | |
US20100147337A1 (en) | Dish washing machine | |
US7922831B2 (en) | Sump for dishwasher | |
CN101164489A (en) | Sump for dish washer | |
US7640940B2 (en) | Drive unit for dish washing machines | |
US7896975B2 (en) | Sump assembly and dish washer using the same | |
US7581552B2 (en) | Drive unit for dish washing machines | |
US8622065B2 (en) | Dish washer | |
KR101054436B1 (en) | dish washer | |
KR100457597B1 (en) | Filter assembly of dish washer | |
KR20110045761A (en) | Dish washer | |
KR20080057398A (en) | Dish washer | |
CN210008991U (en) | Filter system and household appliance |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SAMSUNG ELECTRONICS CO., LTD.,KOREA, REPUBLIC OF Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:RYU, JUNG CHAN;WEE, JEON SUK;REEL/FRAME:023335/0624 Effective date: 20090817 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |