CN209900839U - 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, and the filtering system comprises a cylindrical surface filtering component, a first guiding piece and a cleaning mechanism. The first guide is disposed in the water storage part, and the first guide is configured to spray water toward the cylindrical filter member. The cleaning mechanism is communicated with the water storage part and comprises a second guide piece, the second guide piece is arranged in the water storage part, and the cleaning mechanism is configured to spray water flowing out of the water storage part to the cylindrical surface filtering component through the second guide piece. Like this, first guide and second guide all set up in the water storage portion and just homoenergetic are to cylinder filtering component water spray, can reduce the discharge of the washing rivers of second guide like this to avoid influencing the domestic appliance performance.

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 correlation technique, the problem that the area utilization rate of the filter screen is not high is solved by arranging the rotatable cylindrical filter screen, and meanwhile, the cylindrical filter screen is backflushed by adding a water channel so as to achieve the purpose of cleaning the cylindrical filter screen by 360 degrees. However, in the prior art, the water flow for cleaning the cylindrical screen is branched from the circulating water path, and if the flow rate of the cleaning water flow is too large, the circulating water path is affected, and the performance of the dishwasher is reduced.

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:

a cylindrical filtration component at least partially disposed within the water reservoir;

a first guide disposed within the water storage portion, the first guide configured to spray water toward the cylindrical filter component; and

a cleaning mechanism in communication with the water storage portion, the cleaning mechanism including a second guide also disposed within the water storage portion, the cleaning mechanism configured to spray water flowing from the water storage portion through the second guide toward the cylindrical filtration component.

In the filtering system of the above embodiment, the first guide and the second guide of the cleaning mechanism are both disposed inside the water storage portion and are both capable of spraying water to the cylindrical surface filtering component, so that the flow rate of the cleaning water flowing through the second guide can be reduced, thereby avoiding affecting the performance of the household appliance.

In some embodiments, the cleaning mechanism includes a cleaning pump coupled to the second guide for pumping water from the water reservoir to the second guide.

In some embodiments, the filter system includes a water inlet pipe for supplying water to the water storage part, and the first guide is formed with a first flow passage communicating with the water inlet pipe, and is configured to spray the water of the water inlet pipe to the cylindrical filter part through the first flow passage.

In some embodiments, the cross-sectional area of the first flow channel along the water flow direction is reduced, and the water outlet of the first flow channel is in a slit shape.

In certain embodiments, the first guide is oriented toward the upper half of the cylindrical filter component and the second guide is oriented toward the lower half of the cylindrical filter component.

In some embodiments, the first guide is located at an upper inner portion of the water storage portion, the second guide is located at a lower inner portion of the water storage portion, and the second guide and the first guide are offset from each other.

In some embodiments, the inner lower portion of the water storage part is formed with a first mounting groove in which the second guide is mounted, and the inner upper portion of the water storage part is formed with a second mounting groove in which the first guide is mounted.

In some embodiments, an inner sidewall of the water storage part adjacent to the second guide is formed with a concavo-convex structure.

In some embodiments, the second guide is formed with a second flow passage communicating with the water storage part, and the second guide is configured to spray water flowing out of the water storage part toward the cylindrical filter part through the second flow passage.

In some embodiments, the cross-sectional area of the second flow channel along the water flow direction is reduced, and the water outlet of the second flow channel is in a slit shape.

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, first guide and wiper mechanism's second guide all set up in water storage portion inboard and homoenergetic and spray water to the cylinder filtering component, can reduce the discharge of the washing rivers of second guide like this to avoid influencing the domestic appliance performance.

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

FIG. 5 is a schematic diagram of a portion of a filter 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 view of a further portion of a filtration system according to an embodiment of the present invention;

fig. 9 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 comprises a household appliance 1000, a filtering system 100, a cylindrical filtering component 10, an upper ring part 12, a lower ring part 13, a vertical rib 14, a connecting rib 15, a fin 16, a first guide part 80, a first flow passage 81, a cleaning mechanism 60, a cleaning pump 61, a water inlet 611, a water outlet 612, a second guide part 621, a second flow passage 6211, a water inlet end 6212, a water outlet end 6213, a water inlet pipe 70, a water storage part 200, a water collecting hole 201, a water drainage pipe 204, a water flow channel 206, a first mounting groove 208 and a second mounting groove 209.

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 member 10, a water inlet mechanism 60, a first guide 80, and a water inlet pipe 70. 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.

Referring to fig. 4, in the present embodiment, the water inlet pipe 70 communicates with an external water inlet path to supply water to the household appliance 1000. The first guide 80 communicates with the water inlet pipe 70, and the first guide 80 is configured to spray water of the water inlet pipe 70 toward the cylindrical filter element 10, that is, the first guide 80 is configured to spray water toward the cylindrical filter element 10 (arrow a in fig. 4 indicates a water flow direction within the water inlet pipe 70 and the first guide 80).

Specifically, referring to fig. 8, in the present embodiment, the first guide 80 is located at an upper inner portion of the water storage portion 200 (see fig. 8). The first guide 80 is formed with a first flow passage 81, the first flow passage 81 communicates with the water inlet pipe 70, an outlet of the first flow passage 81 is slit-shaped and faces an upper half section of the cylindrical filter part 10, and the first guide 80 is configured to guide water to the cylindrical filter part 10 through the first flow passage 81. Thus, the water flowing from the water inlet pipe 70 may be sprayed toward the cylindrical filter element 10 through the first guide 80, thereby cleaning the cylindrical filter element 10 and driving the cylindrical filter element 10 to rotate.

Referring to fig. 2, 5 to 7, in the present embodiment, the cleaning mechanism 60 is communicated with the water storage portion 200, and the cleaning mechanism 60 is configured to drive water flowing out from the water storage portion 200 to be sprayed to the cylindrical surface filter member 10. In this manner, the cleaning mechanism 60 sprays water onto the cylindrical filter element 10, which flushes food debris from the cylindrical filter element 10, and to some extent, prevents the accumulation of debris on the cylindrical filter element 10. Meanwhile, the cleaning mechanism 60 can wash 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 being manually cleaned, the manual operation cost is reduced, and the user experience is improved.

With reference to fig. 2 and fig. 5 to 7, the cleaning mechanism 60 includes a cleaning pump 61 and a second guide 621, the cleaning pump 61 is connected to the second guide 621, the cleaning pump 61 is used for sending the water flowing out from the water storage portion 200 to the second guide 621, and the second guide 621 sprays the water to the cylindrical surface filter element 10. That is, the cleaning mechanism 60 is configured to spray water flowing out of the water storage part 200 toward the cylindrical filter member 10 through the second guide 621.

Referring to fig. 6, the water inlet 611 of the washing pump 61 is connected to the water storage portion 200, and the water outlet 612 of the washing pump 61 is connected to the second guiding element 621.

Specifically, in the present embodiment, the water storage part 200 is connected to the washing pump 61 through the water flow passage 206, one end of the water flow passage 206 communicates with the water inlet 611 of the washing pump 61, and the other end communicates with the water storage part 200, and water flowing out of the water storage part 200 flows into the water flow passage 206 and then flows toward the washing pump 61, and the washing pump 61 further pumps the water to the second guide 621 to spray the water to the cylindrical filter part 10 (the arrow B in fig. 6 indicates a water flow direction).

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 washing pump 61 communicates with the water flow passage 206 and the water inlet 611 of the washing pump 61 is located upstream of the water inlet 611 of the water drawing means. In this way, by disposing the water inlet 611 of the washer pump 61 upstream of the water pumping device, the influence of the water diversion action of the washer pump 61 on the water spray pressure of the water pumping device can be reduced. That is, if the water inlet 611 of the washing pump 61 is disposed at the downstream of the water pumping device, the water flow rate of the water pumping device flowing to the spray arm assembly is diverted, and the water flow pressure of the spray arm assembly is reduced, so that the washing effect of the household appliance 1000 is reduced, for example, when the household appliance 1000 is a dishwasher, the water spray pressure of the spray arm assembly is seriously affected, and the washing effect of the tableware is affected.

Specifically, taking a dishwasher as an example, in the dishwasher, the water pumping device is a washing pump. The washing pump 61 divides and pressurizes a part of the water flow flowing out from the water storage part 200 and sprays the part of the water flow to the cylindrical surface filtering part 10, the washing pump pressurizes the other part of the water flow and directly conveys the pressurized part of the water flow to the spray arm assembly to clean tableware, the water inlet 611 of the washing pump 61 is arranged at the upstream of the washing pump, 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.

Referring to fig. 5 to 7, in the present embodiment, the second guide 621 is formed with a second flow passage 6211, and the second guide 621 is configured to spray water flowing out from the water storage portion 200 to the cylindrical filter member 10 through the second flow passage 6211. Specifically, the second flow path 6211 includes a water inlet end 6212 and a water outlet end 6213, the water inlet end 6212 is connected to the pump cavity of the cleaning pump 61, the water outlet 6214 of the water outlet end 6213 is in the shape of a slit, and the length of the slit can be much greater than the width of the slit, so as to increase the cleaning area of the cylindrical surface filter element 10.

In this way, the cylindrical filter element 10 can be self-cleaned by means of the second guide, which is of a comparatively simple construction, and thus the cylindrical filter element 10 can be self-cleaned. In addition, the gap-shaped outlet of the water outlet 6213 can make the pressure of the water sprayed from the water outlet 6213 larger, which can improve the cleaning effect of the cylindrical filter element 10. Meanwhile, the water flow sprayed from the 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 the cylindrical filtering component 10 can be efficiently cleaned by 360 degrees.

In addition, referring to fig. 6, in the present embodiment, the cross-sectional area of the second flow passage 6211 in the water flow direction tends to decrease. 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 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 first mounting groove 208 is further formed at an inner lower portion of the water storage part 200, a shape of the first mounting groove 208 is matched with a shape of the second guide 621, and the second guide 621 is mounted in the first mounting groove 208. Specifically, the first mounting groove 208 is formed in the up-and-down direction of the water storage part 200, and the second guide 621 may be vertically inserted into the first mounting groove 208.

Referring to fig. 8 and 9, in the present embodiment, the second guiding element 621 is located at the lower portion of the inner side of the water storage portion 200 (see fig. 8), the water outlet end 6213 of the second guiding element 621 faces the lower half section of the cylindrical filtering component 10, the first guiding element 80 is located at the upper portion of the inner side of the water storage portion 200, the water outlet of the first flow channel 81 of the first guiding element 80 faces the upper half section of the cylindrical filtering component 10, and the second guiding element 621 and the first guiding element 80 are staggered. The water flow sprayed from the second guide 621 cleans the lower half of the cylindrical filtering member 10, and the water flow sprayed from the first guide 80 cleans the upper half and the lower half of the cylindrical filtering member 10 at the same time. In this way, the second guide 621 and the second guide 622 are arranged to provide a full-time water intake phase and a full-time washing phase of the cylindrical filter assembly 10, and a full-area self-cleaning of the upper half and the lower half of the cylindrical filter assembly 10, and also provide a driving force for the rotation of the cylindrical filter assembly 10.

In addition, referring to fig. 8, since the first guide 80 and the second guide 621 are respectively located at the upper and lower portions of the inner side of the water storage portion 200 and can spray water to the cylindrical filter element 10, when the cylindrical filter element 10 is cleaned, the flow rate of the water in the second guide 621 can be effectively reduced, so as to prevent the performance of the household appliance 1000 from being affected by the excessive water amount shunted by the second guide 624. Meanwhile, the first guide 80 is located at the upper portion of the inner side of the water storage part 200, and may spray water to the upper half or the whole section of the cylindrical filter part 10, so that the risk of slag leakage caused by washing the cylindrical filter part 10 may be effectively reduced.

Referring to fig. 4 again, in the present embodiment, in order to increase the pressure of the water flow sprayed from the first flow channel 81 to improve the cleaning effect on the cylindrical filter element 10, the cross-sectional area of the first flow channel 81 in the water flow direction also tends to gradually decrease.

In addition, referring to fig. 8 and 9 again, in the present embodiment, in order to enable the first guide 80 to be accurately and stably installed in the water storage part 200, a second installation groove 209 (see fig. 9) is further formed at an inner upper portion of the water storage part 200, a shape of the second installation groove 209 is matched with a shape of the first guide 80, and the first guide 80 is installed in the second installation groove 209. Specifically, a second mounting groove 209 is formed in the up-and-down direction of the water storage part 200, and the first guide 80 may be vertically inserted into the second mounting groove 209.

Referring to fig. 4, 8 and 9, in the present embodiment, the concave-convex structure 210 is formed on the inner side wall of the water storage part 200 near the second guide 621. The concavo-convex structure 210 may have a saw-toothed shape, so that the water sprayed from the second guide 621 is prevented from being drawn by the water pumping means to ensure a cleaning effect of the cylindrical filter element 10. It is understood that the concave-convex structure 210 may have other shapes, so long as the surface thereof is required to be uneven to effectively prevent the water sprayed from the second guide 621 from being drawn away by the water pumping device.

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 may feed water through the water inlet pipe 70, and when the water inflow is sufficient, the water inlet pipe 70 may be closed, the washing pump may be turned on, and the washing pump may pump water in the water storage part 200 and supply the pumped water to the spray arm assembly of the dishwasher to wash the dishes in the tub 300 of the dishwasher. 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. When the cylindrical filter element 10 needs to be cleaned, the cleaning pump 61 is started. The washing pump 61 pressurizes a part of the water flowing out of the water storage part 200 and then guides the pressurized water to the lower half of the cylindrical filter member 10 through the second guide 621 to wash the lower half of 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.

The water inlet pipe 70 is opened while the washing pump 61 is turned on, and the water of the water inlet pipe 70 is guided to the upper half of the cylindrical filter part 10 through the first guide 80, thereby enhancing the washing effect of the cylindrical filter part 10.

It will be appreciated that in some embodiments, when the cylindrical filter element 10 needs to be cleaned, the cleaning pump 61 and the water inlet pipe 70 may be simultaneously opened or only one of the two may be activated, for example, only the water inlet pipe 70 is opened, water in the water inlet pipe 70 is sprayed to the upper half section of the cylindrical filter element 10 through the first guide 80, and water flows from the upper half section to the lower half section, so as to achieve overall cleaning of the cylindrical filter element 10.

It should be noted that the wash pump 61 and the water inlet pipe 70 can be opened 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 stages, pre-wash, main wash and rinse, and the wash pump 61 and inlet line 70 may be turned on during operation of any one of the three stages to wash 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.

Further, it is understood that, in the present embodiment, water is introduced through the water inlet pipe 70 before the home appliance 1000 starts to operate, and the cylindrical filter part 10 is automatically preliminarily cleaned during the water introduction due to the presence of the first guide 80.

To sum up, the household appliance 1000 according to the embodiment of the present invention includes the water storage portion 200, and the filtering system 100 includes the cylindrical surface filtering component 10, the first guide 80, and the cleaning mechanism 60. The cylindrical filter element 10 is at least partially disposed within the water reservoir 200. The first guide 80 is provided in the water storage part 200, and the first guide 80 is configured to spray water toward the pillar filter element 10. The cleaning mechanism 60 communicates with the water storage part 200, the cleaning mechanism 60 includes a second guide 621, the second guide 621 is provided to the water storage part 200, and the cleaning mechanism 60 is configured to guide the water flowing out from the water storage part 200 to the cylindrical filter element 10 through the second guide 621.

The utility model discloses embodiment's filtration system 100's first guide 80 and wiper mechanism's second guide 621 all sets up in water storage portion 200 inboard and the homoenergetic sprays water to cylinder filtering component 10, can reduce the discharge of second guide 621's washing rivers like this to avoid influencing domestic appliance 1000 performance.

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 (11)

1. A filtering system for a household appliance, characterized in that it comprises a water reservoir, the filtering system comprising:

a cylindrical filtration component at least partially disposed within the water reservoir;

a first guide disposed within the water storage portion, the first guide configured to spray water toward the cylindrical filter component; and

a cleaning mechanism in communication with the water storage portion, the cleaning mechanism including a second guide also disposed within the water storage portion, the cleaning mechanism configured to spray water flowing from the water storage portion through the second guide toward the cylindrical filtration component.

2. The filtration system of claim 1, wherein the purge mechanism comprises a purge pump coupled to the second guide for pumping water from the water reservoir to the second guide.

3. A filter system as claimed in claim 1 or 2, wherein the filter system comprises a water inlet pipe for supplying water to the water reservoir, the first guide member is formed with a first flow passage communicating with the water inlet pipe, and the first guide member is configured to spray water of the water inlet pipe to the cylindrical filter element through the first flow passage.

4. A filter system as claimed in claim 3, wherein the cross-sectional area of the first flow passage in the direction of flow decreases and the outlet of the first flow passage is in the form of a slot.

5. The filtration system of claim 1, wherein said first guide is oriented toward an upper half of said cylindrical filtration section and said second guide is oriented toward a lower half of said cylindrical filtration section.

6. The filtration system of claim 1, wherein the first guide member is positioned at an upper inside portion of the water storage portion, and the second guide member is positioned at a lower inside portion of the water storage portion, the second guide member being offset from the first guide member.

7. The filtering system as claimed in claim 1, wherein a first mounting groove is formed at an inner lower portion of the water storage part, the second guide is mounted in the first mounting groove, and a second mounting groove is formed at an inner upper portion of the water storage part, the first guide being mounted in the second mounting groove.

8. The filter system of claim 1, wherein an inner sidewall of the water reservoir portion adjacent to the second guide is formed with a concavo-convex structure.

9. The filtration system of claim 1, wherein the second guide defines a second flow passage in communication with the water reservoir, the second guide being configured to direct water flowing from the water reservoir through the second flow passage toward the cylindrical filter element.

10. The filtration system of claim 9, wherein the cross-sectional area of the second flow path in the direction of water flow decreases and the outlet of the second flow path is slit-shaped.

11. A domestic appliance comprising a water storage and a filter system as claimed in any one of claims 1 to 10, said filter system being provided in said water storage.

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