CN210008991U - Filter system and household appliance - Google Patents

Abstract

The utility model discloses a filtration system and domestic appliance. The household appliance comprises a water storage part, the filtering system comprises a cylindrical filtering component and a water inlet mechanism, the cylindrical filtering component is at least partially arranged in the water storage part, a gap is reserved between the bottom of the cylindrical filtering component and the bottom of the water storage part, and the water inlet mechanism is configured to feed water to the gap. The utility model discloses among filtration system and the domestic appliance among the embodiment, the mechanism of intaking can intake to the clearance department between cylinder filtering component and the water storage part, like this, thereby can improve the rivers pressure of clearance department and reach the purpose that restraines the clearance and leak the sediment and prevent the card sediment.

Description

Filter system and household appliance

Technical Field

The utility model relates to the technical field of household appliances, especially, relate to a filtration system and household electrical appliances.

Background

At present, washing water of a dishwasher is generally pumped into a spray arm through a washing pump for spraying, the arrangement position of the washing pump is fixed, and a filter screen of the dishwasher is also fixed in the washing process. Therefore, the area of the screen used is mainly concentrated in the vicinity of the suction port of the washing pump, and the area of the screen far from the suction port cannot be used sufficiently. In addition, the washing pump pumps water from a fixed place, so that more residues on the filter screen are accumulated, the water pumping amount of the washing pump is directly influenced, the water spraying pressure of the spray arm is further influenced, and the washing effect of the dish washing machine is reduced.

In the related art, the problem of low area utilization rate of the filter screen is solved by arranging the rotatable filter screen in the water cup. However, in the prior art, when the filter screen rotates, the bottom of the filter screen is sucked by the washing pump, and the washing pump easily extracts residues in the filter screen from the assembly gap between the filter screen and the water cup, so that the residues are leaked, the tableware is polluted, and even the residues are clamped in the assembly gap, and the filter screen is not smoothly rotated.

SUMMERY OF THE UTILITY MODEL

The utility model provides a filtration system and domestic appliance.

The utility model discloses embodiment's filtration system is used for domestic appliance, domestic appliance includes water storage portion, filtration system includes cylinder filter element and water inlet mechanism, cylinder filter element sets up at least partially in the water storage portion, cylinder filter element's bottom with leave the clearance between the bottom of water storage portion, water inlet mechanism be configured into to the clearance is intake.

In the filtering system, the water inlet mechanism can feed water into the gap between the cylindrical filtering part and the water storage part, so that the water flow pressure at the gap can be improved, and the aims of inhibiting gap slag leakage and preventing slag blockage are fulfilled.

In some embodiments, the water inlet mechanism includes a guide member disposed at a lower portion inside the water storage part, the guide member being configured to guide water to the gap.

In some embodiments, the water inlet mechanism includes a booster pump connected to the guide assembly for pumping water flowing from the water reservoir to the guide assembly.

In some embodiments, the guide assembly includes a first guide member formed with a communicating first flow passage, the guide assembly guiding the water to the gap through the first flow passage.

In some embodiments, the guide assembly further comprises a second guide member connected to the first guide member, the second guide member forming a second flow passage for guiding water flowing from the pressure pump to the cylindrical filter member.

In some embodiments, the second guiding element comprises a water inlet end, a first water outlet end and a second water outlet end, the water inlet end is communicated with the water storage portion, the first water outlet end is located above the second water outlet end, the first water outlet end is communicated with the second flow channel, the second water outlet end is communicated with the first flow channel, and the guiding element guides water to the first flow channel through the second water outlet end and guides water to the cylindrical surface filtering component through the first water outlet end.

In some embodiments, the first channel is an open-bottom channel, the water storage portion defines a matching portion matching with the first channel, and the first channel and the matching portion cooperate to form a channel to guide water to the gap.

In some embodiments, a boss is formed at the bottom of the water storage part, the boss forms a water collection hole, a protrusion extending downwards is formed at the bottom of the cylindrical filter part, the protrusion at least partially extends into the water collection hole, and the gap is formed between the protrusion and the hole wall of the water collection hole.

In some embodiments, the boss is formed with a notch, and the first guide is mounted to the notch.

In certain embodiments, the cylindrical filter element comprises an annular tab disposed on the raised portion, the annular tab being at least partially positioned within the water collection aperture.

In some embodiments, the number of the ring-shaped sheets is two, the two ring-shaped sheets are arranged at intervals, the first flow channel comprises a water outlet, the water inlet mechanism feeds water to the gap through the water outlet, and the water outlet is arranged between the two ring-shaped sheets.

The utility model discloses embodiment's domestic appliance includes water storage portion and any preceding embodiment filtration system, filtration system set up in water storage portion.

Among the above-mentioned domestic appliance, mechanism of intaking can be intake to the clearance department between cylinder filtering component and the water storage part, thereby can improve the rivers pressure of clearance department so and reach the purpose that restraines the clearance and leak the sediment and prevent the card sediment.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a household appliance according to an embodiment of the present invention;

FIG. 2 is a schematic, exploded perspective view of a filtration system according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of a filtration system according to an embodiment of the present invention;

FIG. 4 is an enlarged schematic view at IV of the filtration system of FIG. 3;

fig. 5 is another schematic cross-sectional view of a filtration system according to an embodiment of the present invention;

fig. 6 is a further schematic cross-sectional view of a filtration system according to an embodiment of the present invention;

FIG. 7 is a schematic structural view of another portion of a filtration system according to an embodiment of the present invention;

fig. 8 is a schematic cross-sectional view of yet another embodiment of a filtration system of the present invention;

FIG. 9 is an enlarged schematic view at XI of the filtration system of FIG. 8;

FIG. 10 is a schematic view of a further portion of a filtration system according to an embodiment of the present invention;

fig. 11 is a schematic structural view of a water storage portion of a household appliance according to an embodiment of the present invention.

Description of the main element symbols:

the household appliance 1000, the filter system 100, the cylindrical filter component 10, the upper ring part 12, the lower ring part 13, the vertical rib 14, the connecting rib 15, the fins 16, the protrusion 18, the annular sheet 19, the water inlet mechanism 60, the pressure pump 61, the water inlet 611, the water outlet 612, the guide assembly 62, the second guide 621, the second flow passage 6211, the water inlet end 6212, the first water outlet end 6213, the second water outlet end 6214, the first guide 622, the first flow passage 6221, the water storage part 200, the water collection hole 201, the boss 202, the gap 203, the water discharge pipe 204, the water discharge device 205, the water flow passage 206, the matching part 207 and the installation groove 208.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may include both the first and second features being in direct contact, and may also include the first and second features being in contact, not being in direct contact, but rather being in contact with each other via additional features between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

Referring to fig. 1 and 2, a household appliance 1000 according to an embodiment of the present invention includes a filtering system 100 and a water storage portion 200, wherein the water storage portion 200 is formed with an upward opening, and the filtering system 100 is disposed at the opening. The household electrical appliance 1000 of the embodiment of the present invention includes but is not limited to a dishwasher, a water dispenser, a water purifier, and other water-using electrical appliances. In one example, the household appliance 1000 is a dishwasher, the water storage portion 200 may be a water collecting cup or a water cup of the dishwasher, and when the household appliance 1000 is other water consuming appliances such as a water purifier, the water storage portion 200 may be a component for storing water, such as a water tank, a water box, and the like.

Referring to fig. 1, taking a household appliance 1000 as an example of a dishwasher, the dishwasher generally includes an inner container 300, a water storage portion 200 (i.e., a water collection cup), and a washing pump. Generally, a washing chamber 301 (see fig. 1) is formed inside the inner container 300, a rack (not shown) for placing items to be washed such as dishes, etc. may be provided inside the washing chamber 301, and a spray arm assembly (not shown) for spraying washing water to the items to be washed may be further provided inside the washing chamber 301. The water collecting cup (water storage part 200) is arranged at the bottom of the inner container 300, the water collecting cup and the inner container 300 are hermetically installed, and the spray arm assembly performs rotary spraying on the articles to be cleaned, so that the tableware is cleaned. After cleaning, the washing water is collected in the water collecting cup and filtered by the filtering system 100.

Specifically, the water collection cup is connected with a washing pump, and the washing pump can pump the water gathered in the water collection cup into the spray arm assembly so as to circularly wash the tableware. In addition, the water collecting cup is also connected with a draining pump, a pump shell of the draining pump is connected with the water collecting cup through a flow passage, and when the draining is needed, the draining pump can discharge the water in the water collecting cup to the outside of the dish washing machine.

The washing pump is used for pumping water from the water collecting cup, when the washing pump pumps water in the water collecting cup, the washing water needs to pass through the filtering system 100 system firstly, the filtering system 100 filters food residues, the filtered water is pumped into the spraying arm assembly through the washing pump to be sprayed to clean tableware, and the process is repeated.

Next, the filter system 100 of the present embodiment will be described in detail. Referring to fig. 2 to 7, the filter system 100 of the present embodiment includes a cylindrical filter component 10 and a water inlet mechanism 60. The cylindrical filter member 10 has a hollow cylindrical shape (i.e., a cylindrical shape), and the cylindrical filter member 10 is at least partially and rotatably disposed in the water storage part 200, that is, the cylindrical filter member 10 is rotatable in the water storage part 200.

Specifically, in the present embodiment, water in the household appliance 1000 enters the water storage portion 200 after being filtered by the cylindrical filtering component 10, and then the water in the water storage portion 200 is supplied to the household appliance 1000 for reuse under the action of a water pumping device (e.g., a washing pump of a dishwasher) of the household appliance 1000, during which process, the water in the water storage portion 200 flows in one direction, and the water generates friction with the surface of the cylindrical filtering component 10, so that the cylindrical filtering component 10 rotates. For example, in a dishwasher, a washing pump is connected to the water storage unit 200, and when it is necessary to wash dishes in the dishwasher, the washing pump is turned on to drive a water flow. Thus, the washing water is rapidly discharged from the water storage part 200 by the driving of the washing pump, so that a flowing water current is generated, and a rotational flow is formed in the water storage part 200, thereby driving the cylindrical filter member 10 to rotate. Set up like this and to drive cylinder filtering component 10 and rotate by the kinetic energy when can utilizing rivers to flow, and need not set up the driving piece alone and drive cylinder filtering component 10 and rotate, practice thrift the space, reduced domestic appliance 1000's cost, also can solve food waste to a great extent simultaneously and take place the problem of gathering in same position on cylinder filtering component 10.

Referring to fig. 2, in the present embodiment, the cylindrical filter component 10 includes an upper ring portion 12, a lower ring portion 13, a plurality of vertical ribs 14, a connecting rib 15, and a plurality of fins 16.

The upper ring portion 12 is located above the lower ring portion 13 and both are arranged at an interval in the up-down direction. Both ends of each vertical rib 14 are respectively fixedly connected with the upper ring part 12 and the lower ring part 13, and the plurality of vertical ribs 14 are arranged at intervals in the circumferential direction of the cylindrical surface filter component 10. The connecting rib 15 is annular, and the connecting rib 15 is located between upper ring portion 12 and the lower ring portion 13 and sets up with both intervals, and a plurality of vertical muscle 14 of connecting rib 15 fixed connection. A plurality of fins 16 are fixedly disposed on the connecting rib 15 and are spaced apart circumferentially therearound.

Since the rotation power of the cylindrical filter member 10 is derived from the water flow rapidly discharged from the water storage part 200, the arrangement of the fins 16 can improve the driving effectiveness of the water flow to the cylindrical filter member 10, and ensure the rotation power of the cylindrical filter member 10.

The upper ring portion 12 can maintain the structural stability of the cylindrical filter component 10, and the center of the upper ring portion 12 can be maintained at the center of rotation in the rotating process of the cylindrical filter component 10, so that the phenomenon that the cylindrical filter component 10 inclines due to the fact that the flow speed of water flow is too fast and then the rotation of the cylindrical filter component 10 is influenced can be avoided. The upper ring part 12 is connected with the lower ring part 13 through a plurality of spaced vertical ribs 14, so that the connection between the upper ring part 12 and the lower ring part 13 is stable, and the strength of the cylindrical surface filtering component 10 can be enhanced through the connection between the vertical ribs 14 through the connecting ribs 15. Meanwhile, the plurality of spaced fins 16 are arranged on the connecting rib 15, so that the contact area between the cylindrical surface filter component 10 and water flow can be increased, and the cylindrical surface filter component 10 can be more easily driven to rotate in the water flowing process.

In addition, in the present embodiment, the fins 16 are provided outside the connection ribs 15, so that the washing pump can pump water from the tangential direction of the water storage part 200 during the use of the home appliance 1000, for example, during the washing process of a dishwasher, and apply force to the fins 16 to rotate the cylindrical filter member 10, thereby not only improving the effective utilization area of the cylindrical filter member 10, but also providing an advantageous condition for cleaning the cylindrical filter member 10.

It is understood that, in other embodiments, the fins may be directly disposed on the vertical ribs instead of the connecting ribs, and each vertical rib is provided with a plurality of fins, and the specific arrangement manner is not limited herein.

With reference to fig. 2 to 4, in the present embodiment, a protrusion 18 (see fig. 3 and 4) extending downward is formed at the bottom of the lower ring portion 13 of the cylindrical filter component 10, the protrusion 18 at least partially extends into the water collecting hole 201, the water collecting hole 201 (see fig. 4) is formed at the bottom of the water storage portion 200, and a gap 203 is formed between the protrusion 18 at the bottom of the cylindrical filter component 10 and the wall of the water collecting hole 201.

Referring to fig. 2, 5 to 8, in the present embodiment, the water inlet mechanism 60 is configured to drive the water flowing out from the water storage portion 200 to be sprayed to the gap 203, that is, the water inlet mechanism 60 is configured to feed the water to the gap 203.

In this way, the water inlet mechanism 60 can also feed water into the gap 203, so as to increase the pressure at the gap 203 to achieve the purposes of inhibiting the slag leakage and preventing the slag from being blocked in the gap 203.

It is understood that in other embodiments, the water inlet mechanism 60 may not be connected to the water storage portion 200, that is, the water is not drawn from the water storage portion 200, but is connected to another water storage portion (e.g., a water tank) of the household appliance 100 or a water pipe, and when water is required to be drawn, the water inlet mechanism 60 draws water from the external water storage portion or the water pipe, which is not particularly limited herein.

With continued reference to fig. 2 and fig. 5 to 8, the water inlet mechanism 60 includes a pressure pump 61 and a guiding element 62, the pressure pump 61 is used for pumping the water flowing out from the water storage portion 200 to the guiding element 62 through a water flow channel 206, and the guiding element 62 is used for guiding the water to the gap 203.

Referring to fig. 5, the water inlet 611 of the pressure pump 61 is connected to the water storage portion 200 through the water flow passage 206, and the water outlet 612 of the pressure pump 61 is connected to the guiding member 62.

Specifically, in the present embodiment, the water storage portion 200 is connected to the pressurizing pump 61 through the water flow passage 206, one end of the water flow passage 206 communicates with the water inlet 611 of the pressurizing pump 61, and the other end communicates with the water storage portion 200, and the water flowing out of the water storage portion 200 flows into the water flow passage 206 and then flows toward the pressurizing pump 61, and the pressurizing pump 61 further pumps the water to the guide member 62 to feed the water to the gap 203 (the arrow a in fig. 5 indicates the water flow direction).

Specifically, referring again to fig. 2-4, in the present embodiment, the cylindrical filter component 10 further includes an annular plate 19 (see fig. 4), and the annular plate 19 is fixedly disposed on the protruding portion 18. The annular sheet 19 is at least partially within the water collection hole 201 and partially obscures the gap 203. Thus, the annular sheet 19 is disposed at the bottom of the cylindrical filter element 10 to better control the gap 203 between the cylindrical filter element 10 and the bottom of the water storage part 200, so as to prevent slag leakage and slag jamming to avoid stalling or noise generation of the cylindrical filter element 10.

Referring to fig. 3 and 4, a boss 202 is formed at the bottom of the water storage portion 200, and the water collecting hole 201 is formed on the boss 202. The water collecting hole 201 is connected to a drain device 205 of the household appliance 1000, such as a drain pump, through a drain pipe 204, the water collecting hole 201 is communicated with a pump case of the drain pump through the drain pipe 204, the drain pump is installed on the pump case, and the drain pump can drain the water in the water storage portion 200 to the outside of the household appliance 1000 when the household appliance 1000 needs to drain the water.

In the present embodiment, the annular piece 19 partially covers the gap 203, that is, a gap is also left between the outer side of the annular piece 19 and the wall of the water collecting hole 201. Further, in the present embodiment, the clearance between the outside of the ring piece 19 and the wall of the water collection hole 201 is less than or equal to 2 mm. Therefore, slag leakage and slag blockage can be better prevented under the condition of ensuring water passing.

The annular plate 19 may be made of a metal material and have a thickness of less than or equal to 1 mm. Specifically, in the case where the strength of the ring piece 19 can be ensured, the thinner the ring piece 19 is, the better. So, the ring chip 19 rotates along with the cylinder filtering component 10, because the ring chip 19 is thinner, the residue is difficult to block in the clearance 203 department between the ring chip 19 and the pore wall of the water collecting hole 201, can effectually prevent to block the sediment, and then guarantees that the cylinder filtering component 10 can rotate steadily.

In the illustrated embodiment, the number of annular sheets 19 is two, two annular sheets 19 are arranged coaxially and at a distance, and the thickness of each annular sheet 19 is less than or equal to 0.5 mm. It will be appreciated that in other embodiments, only one ring segment 19 may be provided or more ring segments 19 may be provided, with a plurality of ring segments 19 being spaced apart.

In addition, in the present embodiment, the water pumping device of the household appliance 1000 is also communicated with the water flow channel 206, and the water pumping device can pump water from the water storage portion 200 through the water flow channel 206 for use when the household appliance 1000 is operated. The water inlet 611 of the pressurizing pump 61 communicates with the water flow passage 206 and the water inlet 611 of the pressurizing pump 61 is located upstream of the water inlet 611 of the water pumping means. Thus, by disposing the water inlet 611 of the pressurizing pump 61 upstream of the water pumping device, the influence of the water diversion effect of the pressurizing pump 61 on the water to the water injection pressure of the water pumping device can be reduced. That is, if the water inlet 611 of the pressure pump 61 is disposed at the downstream of the water pumping device, the water flow from the water pumping device to the spray arm assembly will be diverted, and the water pressure loss of the spray arm assembly will be caused, so as to reduce the usability of the household appliance 1000, for example, when the household appliance 1000 is a dishwasher, the water pressure of the spray arm assembly will be seriously affected, and the washing effect on the dishes will be affected.

Specifically, taking a dishwasher as an example, in the dishwasher, the water pumping device is a washing pump. The pressurizing pump 61 divides and pressurizes one part of the water flow flowing out from the water storage part 200 and sprays the part of the water flow to the gap 203, the washing pump pressurizes the other part of the water flow and directly conveys the pressurized water flow to the spray arm assembly to clean tableware, and the water inlet 611 of the pressurizing pump 61 is arranged at the upstream of the washing pump, so that the two parts of the water flow are divided before being pressurized, and the pressure loss of the divided water flow after the water flow is pressurized can be greatly reduced. Thereby, the water outlet pressure of the spray arm component connected with the washing pump is ensured, and the tableware can be efficiently washed, so that the dish washing machine can efficiently clean the tableware.

In addition, referring to fig. 2 and fig. 5 to 8 again, in the present embodiment, the water inlet mechanism 60 can also spray water to the cylindrical filter component 10 through the guiding assembly 62 to clean the cylindrical filter component 10. That is, the water inlet mechanism 60 can supply water into the gap 203 and also can spray the water in the water storage portion 200 toward the cylindrical filter member 10 to clean the cylindrical filter member 10.

Thus, in the process of rotating the cylindrical filter component 10, the water inlet mechanism 60 sprays water to the cylindrical filter component 10, and the water flow can wash away food residues on the cylindrical filter component 10, thereby avoiding the accumulation of the residues on the cylindrical filter component 10 to a certain extent. Meanwhile, the water inlet mechanism 60 can flush the cylindrical filtering component 10 by using the water flowing out from the water storage portion 200, so that the cylindrical filtering component 10 can be self-cleaned without manual cleaning, the manual operation cost is reduced, and the user experience is improved.

Specifically, referring to fig. 2, 5 to 9, in the present embodiment, the guiding assembly 62 includes a first guiding element 622 and a second guiding element 621. The first guide 622 is formed with a first flow passage 6221, and the second guide 621 is formed with a second flow passage 6211. The second guiding element 621 of the guiding assembly 62 includes a water inlet end 6212, a first water outlet end 6213 and a second water outlet end 6214, the water inlet end 6212 is connected to the pump chamber of the pressure pump 61, the first water outlet end 6213 is located above the second water outlet end 6214, the outlet of the first water outlet end 6213 is in the shape of a gap, the length of the gap can be much greater than the width of the gap, so as to increase the cleaning area of the filter element 10. The first water end 6214 communicates with the second fluid passage 6211, and the second water outlet end 6214 communicates with the first fluid passage 6221. The guide assembly 62 directs water through the first outlet end 6213 to the cylindrical filter component 10 and through the second outlet end 6214 to the first flow passage 6221, and the first guide 622 directs water through the first flow passage 6221 to the gap 203.

Thus, the water can be sprayed to the cylindrical filter component 10 and the water can be fed into the gap 203 through the two guide members with simple structures, so that the cylindrical filter component 10 can be automatically cleaned and the gap 203 can be prevented from leaking and blocking slag. In addition, the gap-shaped outlet of the first water outlet end 6213 can make the pressure of the water sprayed from the first water outlet end 6213 larger, which can improve the cleaning effect of the cylindrical filter element 10. Meanwhile, the water flow sprayed from the first water outlet 6213 can be used as a driving force to further drive the cylindrical filtering component 10 to rotate, so that when a water pumping device with low power is used for pumping water, the driving force of the water flow can also ensure that the cylindrical filtering component 10 can stably rotate, and thus the cylindrical filtering component 10 can be efficiently cleaned by 360 degrees.

Referring to fig. 7 and 9, in the present embodiment, the number of the ring-shaped sheets 19 is two, the two ring-shaped sheets 19 are disposed on the protruding portion 18 at intervals, the first flow passage 6221 includes a water outlet 6222, the water outlet 6222 is disposed between the two ring-shaped sheets 19, and the water inlet mechanism 60 feeds water into the gap 203 through the water outlet 6222. Thus, the water flow is sprayed out from the interval between the two annular sheets 19, so that the annular sheets can be prevented from being clamped by the residues to a great extent, and the aim of inhibiting the slag leakage can be fulfilled.

It should be noted that, in other embodiments, the second guide 621 may not be provided, but the first guide 622 may be provided separately to guide water to the gap 203 to increase the pressure at the gap 203, so as to achieve the purpose of suppressing slag leakage and preventing slag from being jammed in the gap 203.

Referring to fig. 5, in the present embodiment, the cross-sectional area of the second flow passage 6211 in the water flow direction decreases. Thus, the water spraying pressure to the cylindrical surface filter element 10 can be ensured, thereby improving the cleaning effect of the cylindrical surface filter element 10, and simultaneously enabling the sprayed water flow to have enough power to drive the cylindrical surface filter element 10 to rotate.

In the present embodiment, the first flow passage 6221 has an arc shape. In this way, the water flow ejected from the first flow passage 6221 has a certain angle, so that the water flow can be ejected to the gap 203 at a certain angle, and the residue at the gap 203 can be washed away to prevent the slag from being stuck.

It will be appreciated that in some embodiments, the cross-sectional area of the first flow path 6221 of the first guide 622 in the direction of water flow also tends to decrease. In this way, the water spray pressure of the first guide 622 may be further enhanced to enhance the pressure at the gap 203 to prevent slag leakage and slag entrapment.

In the illustrated embodiment, the second guide 621 and the first guide 622 are formed separately, and the first guide 622 is located at the bottom of the second guide 621. It is understood that, in other embodiments, the first guide 622 and the second guide 621 may also be integrally formed, and are not limited in particular. In some embodiments, the first guide 622 and the second guide 621 may communicate with each other.

In addition, referring to fig. 7, 10 and 11, in the present embodiment, the first flow passage 6221 is an open-bottom flow passage, the bottom of the water storage portion 200 is provided with a matching portion 207 matching with the first flow passage 6221, and the first flow passage 6221 and the matching portion 207 cooperate to form a channel together to guide water to the gap 203.

Further, referring to fig. 11, in order to allow the first guide 622 to be stably installed at the bottom of the water storage portion 200 so that the first flow passage 6221 is stably engaged with the engaging portion 207, a notch 2021 is formed on the boss 202 at the bottom of the water storage portion 200, and the first guide 622 is installed at the notch 2021, so that the notch 2021 can limit the position of the first guide 622 to prevent the first guide 622 from being disengaged from the engaging portion 207.

In addition, in the present embodiment, in order to allow the second guide 621 to be accurately and stably mounted to the water storage part 200, a mounting groove 208 is further formed at the inner lower portion of the water storage part 200, the shape of the mounting groove 208 is matched with the shape of the second guide 621, and the second guide 621 is mounted in the mounting groove 208.

The overall filtering process of the filtering system 100 and the self-cleaning principle of the cylindrical filter part 10 according to the present embodiment will be described below by taking the household appliance 1000 as a dishwasher as an example.

First, when a user washes dishes using the dishwasher, the dishwasher feeds water through the water inlet pipe 70 (see fig. 6 and 8), and when the water inflow is sufficient, the water inlet pipe 70 is closed, the washing pump is turned on, and the washing pump pumps water in the water storage part 200 and sends the water to the spray arm assembly of the dishwasher to wash the dishes in the dishwasher liner 300. After the washing pump is turned on, the water flow in the water storage part 200 flows in one direction, the cylindrical filtering component 10 rotates under the action of the water flow, the washing water in the inner container 300 enters the cylindrical filtering component 10 for filtering, and the cylindrical filtering component 10 is always in a rotating state in the working process, so that the residues on the cylindrical filtering component 10 cannot be gathered in the same place to reduce the filtering area of the cylindrical filtering component 10. After the washing water is filtered by the cylindrical filtering part 10, the washing water is re-introduced into the water storage part 200, and then is re-pumped by the washing pump and sent to the spray arm assembly to perform a circulation washing of the dishes.

During the cleaning process, the residue of the cylindrical filter unit 10 is introduced into the drain pipe 204 through the water collecting hole 201 formed at the bottom of the water storage part 200. At this time, the washing pump is still in operation, but the arrangement of the ring-shaped piece 19 can prevent the washing pump from sucking out much residue in the drainage pipeline 204 to affect the cleaning effect. Meanwhile, since the ring segment 19 has sufficient strength and is small in thickness, it is difficult for large particle residues to stay in the gap 203 of the ring segment 19 and the hole wall assembly of the water collecting hole 201 to seize the cylindrical filter element 10.

When the cylindrical filter element 10 needs to be cleaned, the pressurizing pump 61 is started. The pressurizing pump 61 pressurizes a part of the water flowing out of the water storage part 200 and then guides the pressurized water to the cylindrical filter member 10 through the second guide 621 to clean the cylindrical filter member 10, and also can apply a certain driving force to the cylindrical filter member 10 to drive the cylindrical filter member 10 to rotate. Further, when the pressurizing pump 61 is turned on, the first guide 622 guides water to the gap 203 to pressurize the gap 203 to prevent the residue from leaking out of the drain pipe 204.

It should be noted that the pressure pump 61 can be turned on at any stage of the operation of the dishwasher to achieve self-cleaning of the cylindrical filter member 10. For example, a dishwasher typically includes three phases, pre-wash, main wash and rinse, and the booster pump 61 may be turned on during operation of any one of the three phases to clean the cylindrical filtration element 10, rather than having to be turned on after the dishwasher is finished. In this way, the user does not need to spend a certain time to clean the cylindrical filter element 10 after the washing is finished, and the user experience is improved.

To sum up, the utility model discloses domestic appliance 1000 of embodiment includes water storage portion 200, and filtration system 100 includes cylinder filter element 10 and water inlet mechanism 60, and cylinder filter element 10 rotationally sets up in water storage portion 200, leaves clearance 203 between the bottom of cylinder filter element 10 and the bottom of water storage portion 200, and water inlet mechanism 60 is configured to the clearance 203 intaking.

The utility model discloses embodiment's filtration system 100's mechanism of intaking 60 can intake to the clearance 203 between cylinder filtering component 10 and water storage portion 200, like this, thereby can improve the rivers pressure that clearance 203 department reaches the purpose of restraining the clearance to leak the sediment and prevent the card sediment.

In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (12)

1. A filtration system for a household appliance comprising a water storage portion, the filtration system comprising a cylindrical filtration component and a water intake mechanism, the cylindrical filtration component being at least partially disposed within the water storage portion, a gap being left between the bottom of the cylindrical filtration component and the bottom of the water storage portion, the water intake mechanism being configured to intake water to the gap.

2. The filtration system of claim 1, wherein the water inlet mechanism comprises a guide member disposed at a lower portion inside the water storage part, the guide member for guiding the water to the gap.

3. A filtration system as claimed in claim 2, wherein said water intake means comprises a booster pump connected to said guide assembly for pumping water from said water reservoir to said guide assembly.

4. A filter system as in claim 3, wherein said guide assembly includes a first guide member defining a communicating first flow passage, said guide assembly directing water through said first flow passage to said gap.

5. The filtration system of claim 4, wherein the guide assembly further comprises a second guide member connected to the first guide member, the second guide member defining a second flow passage for directing water flowing from the pressure pump to the cylindrical filter element.

6. The filtration system of claim 5, wherein the second guide member comprises a water inlet end, a first water outlet end and a second water outlet end, the water inlet end is in communication with the water reservoir portion, the first water outlet end is positioned above the second water outlet end, the first water outlet end is in communication with the second flow channel, the second water outlet end is in communication with the first flow channel, and the guide member directs water through the second water outlet end to the first flow channel and through the first water outlet end to the cylindrical filtration component.

7. The filtration system of claim 4, wherein the first channel is an open-bottomed channel, the water storage portion defines a mating portion that mates with the first channel, and the first channel and the mating portion cooperate to form a channel to guide water to the gap.

8. The filtration system of claim 4, wherein the bottom of the water storage portion is formed with a protrusion, the protrusion forms a water collection hole, the bottom of the cylindrical filtration component is formed with a protrusion extending downward, the protrusion at least partially extends into the water collection hole, and the protrusion forms the gap with the wall of the water collection hole.

9. The filter system of claim 8, wherein the boss is formed with a notch, and the first guide is mounted to the notch.

10. The filtration system of claim 8, wherein the cylindrical filtration component comprises an annular disc disposed at the boss, the annular disc being at least partially located within the water-collecting aperture.

11. The filtration system of claim 10, wherein said number of said annular sheets is two, said two said annular sheets being spaced apart, said first flow passage including a water outlet through which said water inlet mechanism feeds water into said gap, said water outlet being disposed between said two said annular sheets.

12. A domestic appliance comprising a water storage and a filter system as claimed in any one of claims 1 to 11, said filter system being provided in said water storage.

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