Filter assembly of dish washing machine and dish washing machine

Abstract

The utility model provides a dish-washing machine filtering assembly and dish-washing machine, the dish-washing machine filtering assembly is used for filtering water flow flowing into a water tank of the dish-washing machine, the filtering assembly comprises a filtering net, and at least part of the area, used for arranging filtering holes, on the filtering net is arranged to be of a groove type structure. According to the utility model, at least part of the area for arranging the filter holes on the filter screen is of the groove-shaped structure, so that the surface area of the area for arranging the filter holes is increased, food residues can be effectively prevented from being flatly paved and accumulated on the surface of the filter screen, the probability of blockage of the filter screen is reduced, and meanwhile, the strength of the filter screen can be increased; therefore, the filtering efficiency is improved and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of dish washer, concretely relates to a filter assembly of dish washer and dish washer. BACKGROUND

[0002] In the prior art, the dish washer is usually provided with a filter screen above the sink for filtering the residues washed down during the washing process. Specifically, the sink of the dish washer is used to store a certain amount of water, and in each cleaning cycle, the water used to clean the washing objects will flow into the sink of the dish washer through the filter screen above the sink. In this process, the food residues washed down from the washing objects will eventually accumulate in the filter screen under the action of the water flow.

[0003] However, the filter screen of the existing dish washer is mostly designed in a flat structure. This structure makes it easy for the residues to lay flat on the surface of the filter screen, and as the amount of residues continues to increase, the filter screen holes will eventually be covered and blocked. Once the filter screen is blocked, the water flow will be severely affected, which will in turn affect the cleaning effect and working efficiency of the dish washer. In addition, the blockage of the filter screen may also cause water accumulation inside the dish washer, increase the wear and tear and failure risk of the equipment, and shorten its service life.

[0004] In addition, the blockage of the filter screen also brings inconvenience to the user in terms of maintenance. The filter screen needs to be cleaned manually on a regular basis to ensure the normal operation of the dish washer, which not only increases the maintenance cost, but also may affect the user experience of the dish washer due to untimely cleaning.

[0005] Therefore, it has become a technical problem for those skilled in the art to design a filter assembly of a dish washer that can prevent the filter screen from being covered and blocked by food residues.

[0006] Therefore, the utility model is proposed. CONTENT OF THE UTILITY MODEL

[0007] The utility model provides a filter assembly of dish washer, solved the problem that the filter screen of existing dish washer is easy to be covered and blocked by food residues.

[0008] To solve the above technical problems, the basic idea of the technical solution of the utility model is as follows:

[0009] A filter assembly of a dish washer for filtering the water flow flowing into the sink of the dish washer; comprising a filter screen, the area of the filter screen for setting filter holes is at least partially set as a groove type structure.

[0010] Further, the cross section of the groove type structure comprises an upward convex or downward concave fold line, or the cross section of the groove type structure comprises an upward convex or downward concave curve.

[0011] Further, the plurality of groove type structures are arranged continuously on the area for arranging the filter holes, and the cross sections of the plurality of groove type structures are continuous zigzag lines or wavy lines.

[0012] Further, the groove type structure is a long strip extending in a first direction on the area for arranging the filter holes, and the plurality of groove type structures are arranged in a second direction perpendicular to the first direction.

[0013] Further, the cross section of the groove type structure is V-shaped or inverted V-shaped, and the included angle between the side wall of the groove type structure and the vertical direction is greater than or equal to 45° and less than or equal to 60°.

[0014] Further, the filter screen comprises a support frame extending in the vertical direction, and a filter screen plate arranged at the lower end opening of the support frame, and the filter holes are arranged at least on the filter screen plate.

[0015] Further, the groove type structure is arranged in the middle of the filter screen plate and protrudes upward, and the groove type structure is spaced from at least one side of the inner wall of the support frame, and the filter screen plate at the spacing extends in the horizontal direction.

[0016] Further, the filter screen plate is integrally formed with the support frame, or the filter screen plate is detachably arranged at the lower end opening of the support frame, and the lower end of the support frame is provided with a limiting portion for limiting the filter screen plate.

[0017] Another purpose of the present application is to provide a dishwasher provided with the filter assembly.

[0018] Further, the dishwasher comprises a washing chamber, and a water tank is arranged at the bottom of the washing chamber and recessed downward from the bottom of the washing chamber, and the filter assembly of the dishwasher is arranged in the opening at the top of the water tank.

[0019] Compared with the prior art, the present application has the following beneficial effects:

[0020] 1. The area for arranging the filter holes is at least partially arranged as a groove type structure on the filter screen, thereby increasing the surface area of the area for arranging the filter holes, effectively avoiding the food residues from being laid and accumulated on the surface of the filter screen, reducing the probability of the filter screen being blocked, and improving the filtering efficiency and service life.

[0021] 2. The utility model discloses a recess type structure of section V is set in the middle part of filter screen board and is protruding upwards, the peak of protruding is ridge structure, make food residue under the action of water flow and gravity, directly along the inclined plane of recess type structure and slide to the horizontal extension's bottom of filter screen board between the recess type structure of both sides and the inner wall of support frame, increase the accumulation space of bottom food residue, reduce the risk of blockage, and user does not need to clean and change filter screen frequently.

[0022] The utility model discloses a recess type structure of section V is set in the middle part of filter screen board and is protruding upwards, the peak of protruding is ridge structure, make food residue under the action of water flow and gravity, directly along the inclined plane of recess type structure and slide to the horizontal extension's bottom of filter screen board between the recess type structure of both sides and the inner wall of support frame, increase the accumulation space of bottom food residue, reduce the risk of blockage, and user does not need to clean and change filter screen frequently.

[0023] The accompanying drawings are included to provide a further understanding of the utility model, and the specific embodiments of the utility model and its description are used to explain the utility model, but do not constitute improper limitation to the utility model. Obviously, the drawings in the following description only some embodiments, and other drawings can be obtained according to these drawings without the premise of creative labor for those skilled in the art. In the drawings:

[0024] Fig. 1 It is the structure schematic diagram of the inside of dish washer in the utility model embodiment;

[0025] Fig. 2 It is the structure schematic diagram of filter screen in the utility model embodiment.

[0026] Main element explanation in the drawing:

[0027] 1, sink;20, washing chamber;2, filter screen;201, support frame;202, filter screen board;203, recess type structure;2003, second recess;204, ridge structure;3, lower spray arm;4, upper spray arm;5, residue.

[0028] It is explained that these drawings and text description do not aim at limiting the concept range of the utility model in any way, but the concept of the utility model is explained to those skilled in the art by referring to specific embodiments. Specific embodiment

[0029] To make the purpose, technical scheme and advantage of the utility model embodiment more clear, the technical scheme in the embodiment will be clearly and completely described below in conjunction with the drawings of the utility model embodiment, and the following embodiment is used to explain the utility model, but not to limit the range of the utility model.

[0030] ​In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Existing dishwashers typically include a filter screen 2, positioned above the sink 1, to filter food residue 5 generated during the washing process. The filter screen 2's function is to intercept food residue 5 as water flows through it, preventing it from entering the dishwasher's internal pipes and pump system, thus protecting the dishwasher's normal operation. Specifically, during dishwasher operation, water flows through the filter screen 2, food residue 5 is trapped on the filter screen 2, and the filtered water is recycled.

[0033] The commonly used filter screen 2 has a planar structure, meaning its surface is flat with evenly distributed filter holes. In practical use, food residue 5 easily accumulates on the surface of the filter screen 2, causing it to become clogged very easily. This not only reduces the filtration efficiency of the filter screen 2 but also affects the dishwasher's washing performance, and may even lead to equipment malfunction and shorten its lifespan.

[0034] like Figs. 1-2 As shown in the embodiment of this utility model, a filter assembly for a dishwasher is introduced to solve the above-mentioned technical problems.

[0035] The filter assembly includes a filter screen 2, on which at least a portion of the area for setting filter holes is configured as a groove-shaped structure 203. Furthermore, by configuring at least a portion of the filter hole area on the filter screen 2 as a groove-shaped structure 203, the surface area of ​​the area for setting filter holes is increased. The groove-shaped structure 203 gives the surface of the filter screen 2 a certain three-dimensional shape, preventing food residue 5 from easily accumulating on the surface, but guiding it into the grooves, effectively reducing the probability of filter screen 2 clogging, thereby improving filtration efficiency and service life.

[0036] In this embodiment, the cross section of the groove-shaped structure 203 includes an upwardly convex or downwardly concave fold line, or the cross section of the groove-shaped structure 203 includes an upwardly convex or downwardly concave curve.

[0037] Specifically, in this embodiment, the cross section of the groove-shaped structure 203 includes an upwardly convex fold line shape. This makes it difficult for food residue 5 to cover the filter holes, avoiding the area where the filter holes are located from being blocked. Such a design is conducive to the dispersion of water flow, while preventing the flat laying of food residue 5 on the surface of the filter screen 2, reducing the risk of blockage.

[0038] Specifically, in this embodiment, the cross section of the groove-shaped structure 203 can also include a downwardly concave fold line shape. The downwardly concave fold line-shaped groove-shaped structure 203 on the filter screen 2 can guide the food residue 5 to slide along the groove-shaped structure, avoiding the accumulation of residue 5 on the surface of the filter screen 2, thereby improving the filtering efficiency.

[0039] Preferably, in this embodiment, the fold line shape can be designed in various forms such as trapezoidal, zigzag, etc.; specifically, taking the case where the cross section of the groove-shaped structure 203 is trapezoidal, the groove-shaped structure 203 has the characteristics of wide bottom and inclined side wall. The wide bottom part can increase the space for food residue 5 accumulation, thereby more effectively capturing food residue 5 in the water flow. The inclined side wall promotes the rapid flow of water in the groove, and the food residue 5 carried in the water flow is more likely to slide to the bottom of the groove-shaped structure 203, reducing the residence time of the food residue 5 and improving the filtering efficiency.

[0040] In addition, the zigzag fold line forms multiple small grooves at the bottom of each tooth, which can effectively capture particulate matter in the water. This structure not only increases the filtering area, but also causes vortex when the water flows through, further improving the flushing effect on food residue 5 and enhancing the cleaning ability.

[0041] Specifically, in this embodiment, the cross section of the groove-shaped structure 203 can also be a curved shape that protrudes upward, such as an arc or a wave. With this curved protruding design, the surface of the filter screen 2 is smoother, and the water flow has less resistance when passing through, making it easier for food residue 5 to slide down the upwardly convex groove-shaped structure 203 to the bottom of the filter screen 2. This avoids the residue 5 from covering and blocking the surface of the groove-shaped structure 203, preventing the filter holes from being covered, and further reducing the likelihood of the filter screen 2 being blocked.

[0042] Specifically, in this embodiment, the cross section of the groove-shaped structure 203 can also include a downwardly concave curve shape. The downwardly concave curve-shaped groove-shaped structure 203 can form a natural residue 5 collection channel, allowing food residue 5 to slide to the bottom of the groove-shaped structure 203.

[0043] In the above embodiments, the groove-shaped structure 203 can be a straight line or a curved line shape in cross section, which is convex upward or concave downward, or a combination of the above shapes, according to actual needs, to achieve the best filtering effect and service life.

[0044] In the present embodiment, the groove-shaped structure 203 is provided in plurality, and the plurality of groove-shaped structures 203 are arranged continuously on the area for arranging the filter holes, and the cross sections of the plurality of groove-shaped structures 203 are continuous zigzag lines or wavy lines; or the plurality of groove-shaped structures 203 are arranged at intervals on the area for arranging the filter holes, and the area for arranging the filter holes between the two adjacent groove-shaped structures 203 extends in the horizontal direction.

[0045] Specifically, in the design scheme in which the plurality of groove-shaped structures 203 are arranged continuously on the area for arranging the filter holes, and the cross sections of the plurality of groove-shaped structures 203 are continuous zigzag lines, the plurality of groove-shaped structures 203 with the cross sections of continuous zigzag lines are arranged to make the area for arranging the filter holes at least partially present a three-dimensional structure of zigzag shape. The zigzag structure is formed by the continuous arrangement of the plurality of groove-shaped structures 203 which are convex upward or concave downward, and the surface of the filter screen 2 forms an alternating peak-valley shape. Such design increases the surface area of the filter screen 2, provides more filter hole positions, and improves the filtering efficiency. At the same time, under the action of water flow, food residues 5 are more likely to slide into the bottom of the groove-shaped structure 203 which is concave downward, avoiding the flat accumulation of residues 5 on the surface of the filter screen 2, and reducing the probability of clogging of the filter screen 2.

[0046] Further, in the above specific embodiment, the groove-shaped structure 203 which is concave downward can be directly formed, or the groove-shaped structure 203 which is convex upward can be arranged continuously to form the groove-shaped structure 203 which is concave downward, and the groove-shaped structure 203 which is concave downward is formed between the two groove-shaped structures 203 which are arranged continuously and convex upward. Similarly, the groove-shaped structure 203 which is convex upward can also be formed between the two groove-shaped structures 203 which are arranged continuously and concave downward.

[0047] Specifically, in the embodiment, the plurality of groove-shaped structures 203 are arranged continuously on the area for setting the filter holes, and the cross section of the plurality of groove-shaped structures 203 is designed as a continuous wavy line. By arranging the plurality of groove-shaped structures 203 with the cross section of the continuous wavy line, the area for setting the filter holes is at least partially provided with a three-dimensional structure in the form of corrugation. The corrugation structure is formed by the continuous arrangement of the plurality of upwardly convex and downwardly concave curved groove-shaped structures 203, so that the surface of the filter screen 2 is provided with a continuous wavy shape. Such a design further increases the effective surface area of the filter screen 2, optimizes the flow path of the water flow, and reduces the water flow resistance. The food residue 5 is more easily guided to the bottom of the downwardly concave curved groove-shaped structure 203 under the push of the water flow, avoiding the accumulation of the residue 5 on the surface of the area for setting the filter holes of the filter screen 2, and further reducing the risk of clogging.

[0048] In some possible embodiments, the zigzag groove-shaped structures 203 and the curved groove-shaped structures 203 can be combined and arranged in the area for setting the filter holes, and present an irregular shape on the filter screen 2. Specifically, the zigzag groove-shaped structures 203 and the curved groove-shaped structures 203 can be arranged alternately, that is, one zigzag groove-shaped structure 203 is followed by one curved groove-shaped structure 203, and the arrangement is repeated to form a zigzag and wavy arrangement mode. The zigzag groove-shaped structure 203 has the characteristics of peak and valley protrusion, and the curved groove-shaped structure 203 has the characteristics of smooth transition. The zigzag and wavy arrangement mode increases the filter area and further enhances the guiding property of the food residue 5 to slide to the bottom of the groove-shaped structure 203.

[0049] In another possible embodiment, the zigzag groove-shaped structures 203 and the curved groove-shaped structures 203 can be applied in a region-by-region manner. For example, the zigzag groove-shaped structures 203 are arranged in the center of the area for setting the filter holes on the filter screen 2, and the curved groove-shaped structures are arranged at the edges of the area for setting the filter holes on the filter screen 2.

[0050] Specifically, in the embodiment, the plurality of groove-shaped structures 203 are arranged continuously on the area for setting the filter holes, and the cross section of the plurality of groove-shaped structures 203 is designed as a continuous wavy line. By arranging the plurality of groove-shaped structures 203 with the cross section of the continuous wavy line, the area for setting the filter holes is at least partially provided with a three-dimensional structure in the form of corrugation. The corrugation structure is formed by the continuous arrangement of the plurality of upwardly convex and downwardly concave curved groove-shaped structures 203, so that the surface of the filter screen 2 is provided with a continuous wavy shape. Such a design further increases the effective surface area of the filter screen 2, optimizes the flow path of the water flow, and reduces the water flow resistance. The food residue 5 is more easily guided to the bottom of the downwardly concave curved groove-shaped structure 203 under the push of the water flow, avoiding the accumulation of the residue 5 on the surface of the area for setting the filter holes of the filter screen 2, and further reducing the risk of clogging.

[0051] In this embodiment, the groove-shaped structure 203 is in a strip shape extending along a first direction on the area for setting the filter holes, and a plurality of groove-shaped structures 203 are arranged along a second direction perpendicular to the first direction; or, the groove-shaped structure 203 is in a ring shape, and a plurality of groove-shaped structures 203 are arranged along a direction from the center of the area for setting the filter holes to the edge of the area for setting the filter holes.

[0052] Specifically, in this embodiment, the strip-shaped groove-shaped structure 203 extends along a first direction (for example, a horizontal direction), and a plurality of strip-shaped groove-shaped structures 203 are arranged along a second direction (for example, a vertical direction) perpendicular to the first direction.

[0053] Specifically, in this embodiment, the ring-shaped groove-shaped structure 203 is arranged in a concentric ring shape, and a plurality of ring-shaped groove-shaped structures 203 are arranged in a plurality of concentric circles extending outward from the center of the area for setting the filter holes. Such a design makes the surface of the filter screen 2 present a three-dimensional structure of concentric corrugation, significantly increasing the effective surface area of the filter screen 2. At the same time, under the action of water flow and gravity, the food residue 5 slides along the groove wall of the ring-shaped groove-shaped structure 203 and accumulates at the bottom of the groove-shaped structure 203, thereby effectively accumulating the residue 5 at the bottom of the groove-shaped structure 203.

[0054] In this embodiment, the cross section of the groove-shaped structure 203 is V-shaped or inverted V-shaped, and the angle between the side wall of the groove-shaped structure 203 and the vertical direction is greater than or equal to 45° and less than or equal to 60°.

[0055] Specifically, in this embodiment, when the cross section of the groove-shaped structure 203 is V-shaped, the opening of the groove-shaped structure 203 faces upward, forming a downwardly recessed groove-shaped structure 203; or, when the cross section of the groove-shaped structure 203 is inverted V-shaped, the opening of the groove-shaped structure 203 faces downward, forming a ridge-shaped structure 204 that protrudes upward. When the water flow passes through the ridge-shaped structure 204, the food residue 5 is easily slid into the bottom of the groove-shaped structure 203 under the combined action of gravity and water flow. Such a design makes the water flow be divided into two sides by the inverted V-shaped structure when passing through the filter screen 2, thereby making the food residue 5 carried in the water flow more easily accumulate at the bottom of the groove-shaped structure 203.

[0056] Preferably, in this embodiment, the angle between the side wall of the groove-shaped structure 203 and the vertical direction is preferably about 55°. By setting the angle to be between 45° and 60°, it is ensured that the food residue 5 can smoothly slide to the bottom of the groove-shaped structure 203 under the action of gravity and water flow, reducing the retention of the residue 5 on the side wall. At the same time, this angle range also ensures the mechanical strength and structural stability of the filter screen 2, avoiding that the side wall is too steep or flat to affect the use effect.

[0057] In the embodiment, the filter screen 2 comprises a support frame 201 extending in the vertical direction, and a filter screen plate 202 arranged at the lower end opening of the support frame 201, and the filter holes are arranged at least on the filter screen plate 202.

[0058] Specifically, in the embodiment, the support frame 201 extends in the vertical direction, and the filter screen plate 202 is fixed at the lower end opening of the support frame 201, thereby providing reliable support and fixation for the filter screen plate 202. The design of the support frame 201 ensures that the filter screen 2 remains stable during the operation of the dishwasher and is not easily deformed, and can withstand the impact of water flow and food residues 5. At the same time, the area of the filter screen 2 for arranging the filter holes comprises the entire filter screen plate 202, and the filter screen plate 202 is provided with uniformly arranged filter holes. That is, the entire surface of the filter screen plate 202 is uniformly distributed with filter holes, and the water flow can uniformly pass through each part of the filter screen plate 202.

[0059] In addition, the support frame 201 and the filter screen plate 202 can be made of corrosion-resistant and high-strength materials such as stainless steel or high-strength engineering plastics, to ensure the durability and long-term use performance of the filter assembly.

[0060] In the embodiment, the groove-shaped structure 203 is arranged in the middle of the filter screen plate 202 and protrudes upward; the groove-shaped structure 203 is spaced apart from at least one side of the inner wall of the support frame 201, and the filter screen plate 202 in the spacing area extends in the horizontal direction.

[0061] Specifically, in the embodiment, the height of the groove-shaped structure 203 protruding upward from the middle of the filter screen plate 202 is lower than the upper end opening of the support frame 201, or is flush with the upper end opening of the support frame 201; in the spacing area between the groove-shaped structure 203 and the inner wall of the support frame 201, the filter screen plate 202 is arranged in a horizontal state and is provided with filter holes. This part of the horizontally extending filter screen plate 202 further increases the space for storing food residues 5. That is, the groove-shaped structure 203 with a V-shaped cross section protrudes upward in the middle of the filter screen plate 202, and the peak of the protrusion is a ridge-shaped structure 204, so that the food residues 5 directly slide along the inclined surface of the groove-shaped structure 203 to the bottom of the horizontally extending filter screen plate 202 between the groove-shaped structure 203 and the inner wall of the support frame 201 on both sides under the action of water flow and gravity, thereby increasing the storage space of the food residues 5 at the bottom and reducing the risk of blockage, and the user does not need to frequently clean and replace the filter screen 2, thereby improving the user experience.

[0062] Specifically, in the embodiment, the support frame 201 provides necessary structural support to ensure that the filter screen plate 202 remains stable during use and is not easily deformed.

[0063] Further, the groove-shaped structure 203 is in a strip shape and extends along the area where the filter holes are arranged. The two ends of each groove-shaped structure 203 are blocked by the opposite inner walls of the support frame 201, thereby forming a closed first groove. Meanwhile, the two ends and the side portions of the horizontally extending filter screen plate 202 between the groove-shaped structure 203 and the inner walls of the support frame 201 are enclosed by the inner walls of the support frame 201 to form a closed second groove 2003, which has a different cross-sectional shape from the first groove. When the water flows through the filter screen plate 202, the food residues 5 will be captured in the groove-shaped structure 203 and the second groove 2003, thereby reducing the blockage of the filter holes.

[0064] In some possible embodiments, the walls of the support frame 201 used to form the first groove and the second groove 2003 are also uniformly provided with filter holes.

[0065] In the embodiment, the filter screen plate 202 is integrally formed with the support frame 201, or the filter screen plate 202 is detachably arranged at the lower end opening of the support frame 201. The lower end of the support frame 201 is provided with a limiting portion for limiting the position of the filter screen plate 202.

[0066] Specifically, in the embodiment, when the filter screen plate 202 is integrally formed with the support frame 201, it means that the filter screen plate 202 and the support frame 201 are integrally formed by using the same material and the same process, thereby ensuring the overall strength and sealing performance of the filter assembly. The seamless connection between the filter screen plate 202 and the support frame 201 avoids the loosening or water leakage at the connection position, thereby improving the durability and stability of the filter assembly.

[0067] Specifically, in the embodiment, the filter screen plate 202 can also be detachably arranged at the lower end opening of the support frame 201. The lower end of the support frame 201 is provided with a limiting portion for limiting the position of the filter screen plate 202. The limiting portion can be a clamping groove, a protrusion, a thread or other mechanical connection structure, which is used to fix the position of the filter screen plate 202 and prevent it from moving or falling off during use. Through the detachable design, the user can conveniently take down the filter screen plate 202 for cleaning and maintenance, thereby prolonging the service life of the filter assembly.

[0068] Further, the clamping groove can be arranged on the inner wall of the support frame 201 and close to the side of the bottom of the support frame 201, and matches the edge of the filter screen plate 202. When the filter screen plate 202 is placed in place, the edge of the filter screen plate 202 will be embedded in the clamping groove, thereby ensuring that the filter screen plate 202 is stably fixed on the support frame 201. Not only the stability of the filter screen plate 202 during use is ensured, but also the user can quickly detach it during cleaning and maintenance.

[0069] In this embodiment, the filter plate 202 and the support frame 201 can be made of stainless steel, high-temperature resistant plastic, or other corrosion-resistant and high-temperature resistant materials to meet the requirements of the dishwasher's working environment. The filter holes on the filter plate 202 are evenly distributed, resulting in good filtration. The support frame 201 provides the necessary structural support to ensure the stability of the filter assembly.

[0070] like Figs. 1-2 As shown in the above embodiment, the dishwasher includes a washing chamber 20 for placing tableware to be washed. The washing chamber 20 is equipped with a spray assembly, and a water tank 1 is located at the bottom of the washing chamber 20. The water tank 1 is recessed downwards from the bottom of the washing chamber 20 to form a space for collecting and storing washing water.

[0071] Specifically, the water tank 1 is positioned directly below the spray area of ​​the spray assembly, and the filter assembly is located within the opening at the top of the water tank 1. The filter assembly, installed at the top opening of the water tank 1, effectively filters the water flowing into the water tank 1, intercepting food residue 5 generated during the washing process and preventing it from entering the water tank 1 and the subsequent drainage system. Simultaneously, the spray assembly includes an upper spray arm 4 and a lower spray arm 3. Multiple nozzles on the upper and lower spray arms 4 and 3 evenly spray water onto the surface of the filter screen 2 on the water tank 1, ensuring that the food residue 5 on the filter screen 2 is directly washed to the bottom of the filter plate 202. Furthermore, the placement of the filter assembly within the opening at the top of the water tank 1 facilitates installation and removal of the filter assembly, making cleaning and maintenance easier, while also fully utilizing the space of the water tank 1, thus improving the dishwasher's filtration efficiency and performance.

[0072] In this embodiment, through the above design, the filter assembly effectively improves the filtration efficiency of the filter screen 2, reduces the probability of clogging, and extends the service life of the filter screen 2. At the same time, the filter assembly has a simple structure, is easy to replace, clean, and install, and is suitable for various types of dishwashers.

[0073] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. The implementation schemes in the above embodiments can be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1.A filter assembly of a dishwasher, configured to filter a water flow flowing into a sump (1) of the dishwasher, characterized in that: the filter assembly comprises a filter screen (2) having a region for setting filter holes, and the region is at least partially provided with a groove-shaped structure (203) ; the groove-shaped structure (203) has a cross section comprising an upwardly convex broken line; and the cross section of the groove-shaped structure (203) is in a reverse V shape. 2.The filter assembly of the dishwasher according to claim 1, characterized in that: a plurality of groove-shaped structures (203) are provided; the plurality of groove-shaped structures (203) are arranged continuously on the region for setting filter holes, and the cross sections of the plurality of groove-shaped structures (203) are in a continuous zigzag line; or the plurality of groove-shaped structures (203) are arranged at intervals on the region for setting filter holes, and the region for setting filter holes between two adjacent groove-shaped structures (203) extends in a horizontal direction. 3.The filter assembly of the dishwasher according to claim 2, characterized in that: the groove-shaped structure (203) is in a strip shape extending in a first direction on the region for setting filter holes, and the plurality of groove-shaped structures (203) are arranged in a second direction perpendicular to the first direction; or the groove-shaped structure (203) is annular, and a plurality of turns of the groove-shaped structure (203) are provided in a direction from a center of the region for setting filter holes to an edge of the region for setting filter holes. 4.The filter assembly of the dishwasher according to any one of claims 1 to 3, characterized in that: a side wall of the groove-shaped structure (203) forms an angle greater than or equal to 45° and less than or equal to 60° with a vertical direction. The filter screen (2) comprises: a support frame (201) extending in a vertical direction; and a filter screen plate (202) provided at a lower end opening of the support frame (201), and filter holes are provided at least on the filter screen plate (202). 6.The filter assembly of the dishwasher according to claim 5, characterized in that: the groove-shaped structure (203) is provided in a middle portion of the filter screen plate (202) and protrudes upwardly; and the groove-shaped structure (203) is spaced apart from at least one side of an inner wall of the support frame (201), and a portion of the filter screen plate (202) at the spacing extends in a horizontal direction. 7.The filter assembly of the dishwasher according to claim 5, characterized in that: the filter screen plate (202) is integrally formed with the support frame (201); or the filter screen plate (202) is detachably provided at the lower end opening of the support frame (201), and a lower end of the support frame (201) is provided with a limiting portion for limiting the filter screen plate (202). A dishwasher comprising the filter assembly of any one of claims 1 to 7. The dishwasher comprises a washing chamber (20), and a sump (1) is provided at a bottom of the washing chamber (20) and recessed downwardly from the bottom of the washing chamber (20); and the filter assembly of the dishwasher is provided in an opening at a top of the sump (1). ​ ​ ​ ​ 5. The filter assembly of any one of claims 1 to 3, wherein, ​ ​ ​ ​ ​ ​ ​ ​ ​ 8. A dishwasher, characterized in that ​ 9. The warewash machine of claim 8, wherein, ​ ​

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