Filter components and dishwashers

Abstract

The present invention relates to the technical field of dishwashers, and discloses a filter assembly and a dishwasher, wherein the filter assembly comprises a water cup (1), a cylindrical filter component (2) and a flushing assembly, wherein a filter bracket (3) is installed in the water cup (1), the cylindrical filter component (2) is rotatably installed in the filter bracket (3), and the flushing assembly comprises at least one flushing element (41) for flushing the cylindrical filter component (2). The filter assembly of the present invention can reduce the frequency of user disassembly and cleaning, improve user experience, and enhance cleaning effect.

Description

Technical Field

[0001] The present invention relates to the technical field of dishwashers, and in particular to a filter assembly. In addition, the present invention also relates to a dishwasher. Background Art

[0002] As living standards improve, people have higher and higher demands for quality of life, and dishwashers are gradually entering our lives.

[0003] Dishwashers usually have a filtration system, in which a cylindrical filter is installed in a water cup to filter out these tiny pollutants, so as to prevent them from re-entering the washing system and contaminating the dishes. When the cylindrical filter filters these tiny pollutants, the pollutants are easily adhered to the cylindrical filter, causing the cylindrical filter to be blocked, making it difficult for the washing pump to pump, affecting the washing effect, or even making it impossible to wash normally. It needs to be disassembled regularly for manual cleaning, which results in a poor user experience.

[0004] In view of this, it is necessary to design a new filter component to overcome or alleviate the above technical problems. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a filter component, which can reduce the frequency of user disassembly and cleaning, improve user experience, and enhance cleaning effect.

[0006] In order to solve the above technical problems, the first aspect of the present invention provides a filter assembly, including a water cup, a cylindrical filter component and a flushing assembly, wherein a filter bracket is installed in the water cup, the cylindrical filter component is rotatably installed in the filter bracket, and the flushing assembly includes at least one flushing element for flushing the cylindrical filter component.

[0007] Optionally, the flushing component further comprises a water inlet pipe, the water inlet end of the water inlet pipe is connected to the water inlet, and the water outlet end of the water inlet pipe is connected to the flushing element.

[0008] Furthermore, the flushing assembly also includes a washing pump, a first water pipe and a second water pipe, one end of the first water pipe is connected to the water inlet end of the water inlet pipe, the other end of the first water pipe is connected to the second water pipe through the washing pump, and the second water pipe is connected to the water cup.

[0009] Specifically, the first water pipe is provided with a control valve. Specifically, the water cup is connected with a water outlet pipe, and the water outlet pipe is provided with a drainage pump.

[0010] Optionally, the cylindrical filter component is sleeved on a rotating shaft, and the rotating shaft passes through the filter bracket.

[0011] Specifically, the flushing element is a nozzle.

[0012] Optionally, a planar filter component is further included, and the planar filter component is installed on the top of the filter support.

[0013] Specifically, the planar filter component is provided with a flow guide slope.

[0014] Specifically, the guide slope is arranged along the edge of the planar filter component and is tapered.

[0015] Specifically, the mesh aperture of the filter screen of the planar filter component is smaller than the mesh aperture of the filter screen of the cylindrical filter component.

[0016] Optionally, the direction of water flow sprayed by the flushing element is tangent to the outer peripheral surface of the cylindrical filter component.

[0017] A second aspect of the present invention provides a dishwasher provided with a filter assembly as described in any one of the above technical solutions.

[0018] Through the above technical solution, the beneficial effects of the present invention are as follows:

[0019] During the washing program, the flushing element faces the cylindrical filter component, and the cylindrical filter component is rotating all the time, so that the cylindrical filter component rotates itself and the flushing element sprays water to the filter screen on the side of the cylindrical filter component, so that the food residues adhering to the filter screen on the side of the cylindrical filter component can be washed away, reducing the frequency of users disassembling the cylindrical filter component for cleaning, and can ensure the filtering effect of the cylindrical filter component and improve the cleaning effect. In addition, the cylindrical filter component rotates in the filter bracket, and the filter bracket is fixedly installed in the water cup. The position between the filter bracket and the water cup is relatively fixed, which can prevent the cylindrical filter component from directly rotating in the water cup. Leakage of residues in the gap can be prevented.

[0020] Moreover, the surface of the planar filter component is a guide slope, which is conducive to guiding the water flow sprayed by the spray arm to flow to the filter port of the planar filter component and flow into the cylindrical filter component for secondary filtration.

[0021] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 It is a structural schematic diagram of a filtration system provided by a specific embodiment of the present invention;

[0024] Figure 2is a schematic diagram of the structure of a filter assembly provided by a specific embodiment of the present invention;

[0025] Figure 3 yes Figure 2 Schematic cross-sectional view of section AA.

[0026] Description of Reference Numerals

[0027] 1 cup 2 cylindrical filter components

[0028] 3 filter holder 41 flushing element

[0029] 42 water inlet pipe 43 washing pump

[0030] 44 first water pipe 45 second water pipe

[0031] 46 water outlet pipe 47 third water pipe

[0032] 5 control valve 6 drainage pump

[0033] 7 Rotating axis 8 Flat filter element

[0034] 9 Spray arm water diverter valve DETAILED DESCRIPTION

[0035] The specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and the protection scope of the present invention is not limited to the following specific embodiments.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In addition, the terms "first", "second" and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second" and "third" may explicitly or implicitly include one or more of the said features.

[0038] First of all, it should be noted that, unless otherwise stated, the directional words used, such as "inside" and "outside", are defined as the inside and outside of the corresponding components. Figure 2 As shown, the filter support 3 is located outside and the cylindrical filter component 2 is located inside. Figure 2As shown, based on the corresponding components themselves, the plane filter component 8 is located at the top, and correspondingly, the water cup 1 is located at the bottom. It should be understood that the terms are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. The orientation terms of the present invention should be understood in conjunction with the actual installation state.

[0039] A filter assembly provided in an embodiment of the present invention can be applied to household appliances with washing functions such as dishwashers. In a specific embodiment, a dishwasher is mainly used as an example to illustrate the beneficial effects of the present invention.

[0040] Reference Figures 1 to 3 As shown, the filter assembly of the basic technical solution of the present invention includes a water cup 1, a cylindrical filter component 2 and a flushing assembly, a filter bracket 3 is installed in the water cup 1, the cylindrical filter component 2 is installed in the filter bracket 3, and the cylindrical filter component 2 can rotate in the filter bracket 3, and the flushing assembly includes at least one flushing element 41, which can be used to flush the cylindrical filter component 2.

[0041] If the cylindrical filter component 2 is directly installed in the water cup 1 and the cylindrical filter component 2 is rotated therein, there is an assembly tolerance between the cylindrical filter component 2 and the water cup 1, and the cylindrical filter component 2 is relatively rotated in the water cup 1, and a gap is likely to appear between the two, causing small food residues to leak from the assembly and combination position between the two; however, the present invention provides a filter bracket 3 between the water cup 1 and the cylindrical filter component 2, that is, the filter bracket 3 is installed in the water cup 1, and the filter bracket 3 and the water cup 1 do not rotate relative to each other, and then the cylindrical filter component 2 is installed in the filter bracket 3, and the cylindrical filter component 2 can be relatively rotated in the filter bracket 3. In this way, since the position between the filter bracket 3 and the water cup 1 is relatively fixed, no large gap will be generated, so that the food residue can be confined in the water cup 1 and will not leak from the assembly and combination position between the water cup 1 and the filter bracket 3. Moreover, the filter screen of the cylindrical filter component 2 is flushed using the flushing element 41, and the rotational movement of the cylindrical filter component 2 can effectively flush the filter screen of the cylindrical filter component 2, thereby reducing the blockage of the filter screen of the cylindrical filter component 2 and ensuring the cleaning effect. At the same time, it also reduces the frequency of user disassembly and cleaning, thereby improving the user experience.

[0042] Among them, a filter screen is formed on the outer surface of the cylindrical filter component 2, and the flushing element 41 can be selected as a spraying mechanism such as a nozzle. One or more flushing elements 4 can be set to flush the filter screen on the cylindrical filter component 2. The specific number of flushing elements 4 is set according to design requirements. For example, multiple flushing elements 4 are dispersedly arranged along the outer peripheral surface of the cylindrical filter component 2, or multiple flushing elements 4 are dispersedly arranged along the axial direction of the cylindrical filter component 2. Furthermore, the direction of the water flow sprayed by the flushing element 4 can be tangent or nearly tangent to the outer peripheral surface of the cylindrical filter component 2, so as to achieve a better flushing effect.

[0043] As a specific embodiment, refer to Figure 3 , a rotating shaft 7 can be provided, the rotating shaft 7 penetrates the filter bracket 3 from one end of the filter bracket 3, the cylindrical filter component 2 is sleeved on the rotating shaft 7, and the cylindrical filter component 2 rotates coaxially with the rotating shaft 7, that is, the cylindrical filter component 2 is fixedly connected to the rotating shaft 7. A bearing is provided between the filter bracket 3 and the rotating shaft 7, and the rotating shaft 7 is connected to the motor through a coupling, or the rotating shaft 7 is connected to the motor through a gear transmission. Under the drive of the motor, the rotating shaft 7 can drive the cylindrical filter component 2 to rotate. Among them, a protrusion can be provided on the upper surface of the bottom of the water cup 1, and correspondingly, a groove is provided at the bottom of the filter bracket 3, so that the water cup 1 and the filter bracket 3 can be interlocked with each other to achieve mutual fixation.

[0044] As a specific embodiment, refer to Figure 1 In the flushing assembly, a water inlet pipe 42 may be provided, the water inlet end of the water inlet pipe 42 is connected to a water inlet, which refers to an interface connected to an external water source, such as tap water, to provide washing water; the water outlet end of the water inlet pipe 42 is connected to the flushing element 41. In this way, tap water directly flows through the water inlet pipe 42 to the flushing element 41 to flush the cylindrical filter component 2.

[0045] As a specific embodiment, refer to Figure 1, a washing pump 43, a first water pipe 44 and a second water pipe 45 may also be provided in the flushing assembly, and at the same time, the first water pipe 44 has one end connected to the water inlet end of the water inlet pipe 42, that is, the first water pipe 44 has one end connected to the water inlet, the other end of the first water pipe 44, the washing pump 43 and the second water pipe 45 are connected in sequence, and the other end of the second water pipe 45 is connected to the water cup 1. Generally, a control valve 5 may be installed on the first water pipe 44, and the control valve 5 is preferably a hydraulic reversing valve, which is mainly used to control the on and off of the water path, and may also be a flow valve, which is used to control the flow rate in the water path. In this way, the control valve 5 is opened, the first water pipe 44 is connected to the tap water, and the washing pump 43 is started at the same time, and the washing water flows into the water cup 1 through the first water pipe 44, the washing pump 43, and the second water pipe 45. Then, the tap water switch is turned off, and the washing pump 43 is reversely rotated, so that the water flows continuously along the circulation loop formed by the water cup 1, the second water pipe 45, the washing pump 43, the first water pipe 44, the water inlet pipe 42, the cylindrical filter component 2, and the water cup 1, and the cylindrical filter component 2 is continuously flushed through the flushing element 41, so that the flushing is more thorough. Among them, the washing pump 43 can be a hydraulic power drive device, such as a bidirectional hydraulic pump.

[0046] Furthermore, the water cup 1 is also connected to the water outlet pipe 46, and a drainage pump 6 is installed on the water outlet pipe 46. When the washing water needs to be discharged, the drainage pump 6 can be turned on, and the washing water flows out from the water outlet pipe 46 under the action of the drainage pump 6. Of course, during the flushing process, a closed loop may not be formed, that is, tap water may flow through the water inlet pipe 42, the cylindrical filter component 2, the water cup 1, and the water outlet pipe 46 to complete the flushing operation. Among them, the drainage pump 6 can be a hydraulic power drive device, such as a one-way hydraulic pump, a two-way hydraulic pump, etc.

[0047] In addition, a plane filter component 8 may be provided, and the plane filter component 8 may be installed on the top of the filter bracket 3. Usually, in a dishwasher, a spray arm is used to wash dishes, and the dripping washing water will flow to the plane filter component 8, and then enter the cylindrical filter component 2, and the plane filter component 8 and the cylindrical filter component 2 are used for double filtering. Generally, the mesh aperture of the filter screen of the plane filter component 8 is larger, so that the food residue can completely flow into the cylindrical filter component 2 under the action of the water flow sprayed by the spray arm, and the mesh aperture of the filter screen of the cylindrical filter component 2 is smaller, which can intercept the food residue in the water flow and realize the filtering function.

[0048] Among them, the planar filter component 8 refers to the filter screen that is roughly formed into a planar structure as a whole. The horizontal dimension of the filter screen is larger than its vertical dimension, but it is not limited to the shape of the filter screen as a standard plane. For example, it can have a deformed structure such as bending or folding.

[0049] In order to make the washing water flow into the cylindrical filter component 2 better, refer to Figure 2 and Figure 3 The plane filter component 8 includes a filter hole with a filter structure, and a guide slope is arranged around the filter hole. The guide slope is designed to be a trumpet shape or a cone with a high outside and a low inside, so that water can flow along the guide slope to the filter hole.

[0050] Reference Figure 1 , a spray arm water diverter valve 9 can also be set in the filter assembly, and the spray arm water diverter valve 9 is connected to the spray arm. At the same time, the spray arm water diverter valve 9 is connected to the first water pipe 44 and the washing pump 43 through the third water pipe 47 to form a filtering system, and the filtering system has three groups of water circulation states. State 1, water flow external circulation: tap water flows in from the water inlet, flows into the water cup 1 through the water inlet pipe 42, and the washing pump 43 and the spray arm water diverter valve 9 are turned on. The water flows into the spray arm through the second water pipe 45, the washing pump 43, the third water pipe 47 and the spray arm water diverter valve 9, and the dishes and other tableware are sprayed and rinsed through the spray arm. The washing water falls into the flat filter component 8, and then flows into the cylindrical filter component 2 to filter the washing water. The filtered washing water flows out from the outlet pipe 46, realizing the process of spraying and washing the tableware once. State two, internal water circulation: tap water flows in from the water inlet, flows into the water cup 1 through the water inlet pipe 42, turns on the washing pump 43 and the spray arm water diversion valve 9, and at the same time closes the drain pump 6. The water flows into the spray arm through the second water pipe 45, the washing pump 43, the third water pipe 47 and the spray arm water diversion valve 9, and the dishes and other tableware are sprayed and rinsed through the spray arm. The washing water falls into the flat filter component 8, and then flows into the cylindrical filter component 2 to filter the washing water. The filtered washing water enters the water cup 1, and again flows into the spray arm through the second water pipe 45, the washing pump 43, the third water pipe 47 and the spray arm water diversion valve 9, and the dishes and other tableware are sprayed and rinsed through the spray arm, thereby realizing the cyclic washing of the tableware. State three, flushing cycle: open the control valve 5 and close the spray arm water diversion valve 9, the washing water in the water cup 1 flows to the flushing element 41 through the second water pipe 45, the washing pump 43, the first water pipe 44 and the water inlet pipe 42, and cooperates with the rotational movement of the cylindrical filter component 2 to flush the cylindrical filter component 2.

[0051] The present invention also provides a dishwasher, which can have the filter assembly described in any of the above embodiments, that is, all the technical solutions of all the above filter assembly embodiments are adopted, and thus at least all the beneficial effects brought by the technical solutions of the above filter assembly embodiments are obtained. The frequency of user disassembly and cleaning can be reduced, the user experience can be improved, and the cleaning effect can be improved.

[0052] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0053] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0054] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A filter assembly, characterized in that: The invention comprises a water cup (1), a cylindrical filter component (2) and a flushing assembly, wherein a filter bracket (3) is installed in the water cup (1), the filter bracket (3) and the water cup (1) are relatively fixed in position, the cylindrical filter component (2) is rotatably installed in the filter bracket (3), and the flushing assembly comprises at least one flushing element (41) for flushing the cylindrical filter component (2); the cylindrical filter component (2) is sleeved on a rotating shaft (7), and the rotating shaft (7) is penetrated by the filter bracket (3). ， A bearing is provided between the filter support (3) and the rotating shaft (7), and the cylindrical filter component (2) is fixedly connected to the rotating shaft (7) and rotates coaxially.

2. The filter assembly according to claim 1, characterized in that: The flushing assembly further comprises a water inlet pipe (42), the water inlet end of the water inlet pipe (42) being connected to the water inlet, and the water outlet end of the water inlet pipe (42) being connected to the flushing element (41).

3. The filter assembly according to claim 2, characterized in that: The flushing assembly further comprises a washing pump (43), a first water pipe (44) and a second water pipe (45); one end of the first water pipe (44) is connected to the water inlet end of the water inlet pipe (42); the other end of the first water pipe (44) is connected to the second water pipe (45) via the washing pump (43); and the second water pipe (45) is connected to the water cup (1).

4. The filter assembly according to claim 3, characterized in that: The first water pipe (44) is provided with a control valve (5).

5. The filter assembly according to any one of claims 1 to 4, characterized in that: The water cup (1) is connected to a water outlet pipe (46), and a drainage pump (6) is provided on the water outlet pipe (46).

6. The filter assembly according to any one of claims 1 to 4, characterized in that: The flushing element (41) is a nozzle.

7. The filter assembly according to claim 1, characterized in that: It also comprises a planar filter component (8), wherein the planar filter component (8) is mounted on the top of the filter support (3).

8. The filter assembly according to claim 7, characterized in that: The planar filtering component (8) is provided with a flow guiding slope.

9. The filter assembly according to claim 8, characterized in that: The guide slope is arranged along the edge of the planar filter component (8) and is tapered.

10. The filter assembly according to claim 7, characterized in that: The mesh aperture of the filter screen of the planar filter component (8) is smaller than the mesh aperture of the filter screen of the cylindrical filter component (2).

11. The filter assembly according to any one of claims 1 to 4, characterized in that: The direction of the water flow sprayed by the flushing element (41) is tangent to the outer peripheral surface of the cylindrical filter component (2).

12. A dishwasher, characterized in that: A filter assembly according to any one of claims 1 to 11 is provided.

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