Filtering device and electrical equipment

Abstract

The utility model belongs to the technical field of electrical equipment, particularly relates to a filtering device and electrical equipment, and aims to solve the problems that a filter is easy to block and manual cleaning wastes time and labor to a certain extent. The filtering device comprises a filtering shell, a filtering piece and a cleaning piece, wherein the filtering shell is provided with a filtering cavity, and a water inlet and a water outlet which are communicated with the filtering cavity; the filtering piece is arranged in the filtering cavity so as to filter a fluid medium flowing through the filtering piece; the cleaning piece is arranged inside or / and outside the filtering piece, and the filtering piece and the cleaning piece rotate relatively. According to the filtering device, relative rotation of the filtering part and the cleaning part is controlled, in the rotation process, the cleaning part cleans the inner surface of the filtering part, so that residual foreign matter on the filtering part is separated from the filtering part, the technical problem that the filtering part is blocked is relieved to a certain degree, an automatic cleaning scheme is adopted, and the cleaning efficiency is improved. The technical problem that manual cleaning wastes time and labor can be avoided, and good practicability is achieved.

Description

Technical Field

[0001] This application belongs to the technical field of electrical equipment, and particularly relates to a filtering device and an electrical equipment. Background Art

[0002] The dishwasher filtration system is an important part of the overall water flow system of the dishwasher, mainly realizing the functions of filtering the washing circulating water and collecting and removing different types of food residues. When the dishwasher is working, the filter is easily blocked by foreign matters such as food residues and oil stains. Once blocked, it needs to be manually cleaned, which is time-consuming and laborious. Summary of the Invention

[0003] This application provides a filtering device and an electrical equipment, aiming to at least to some extent solve the problems that the filter is easily blocked and manual cleaning is time-consuming and laborious.

[0004] In the first aspect of this application, a filtering device is provided. The filtering device includes: a filtering housing provided with a filtering chamber, an inlet and an outlet communicating with the filtering chamber; a filtering element placed in the filtering chamber to filter the fluid medium flowing through the filtering element; a cleaning element placed inside and / or outside the filtering element, and the filtering element and the cleaning element rotate relative to each other.

[0005] For the filtering device provided by this application, by controlling the relative rotation of the filtering element and the cleaning element, during the rotation process, the cleaning element sweeps the inner surface of the filtering element, so that the residues and foreign matters on the filtering element are separated from the filtering element, alleviating the technical problem of blockage of the filtering element to a certain extent, and it is an automatic cleaning solution, which can avoid the technical problem of time-consuming and laborious manual cleaning and has good practicability.

[0006] In some embodiments, the cleaning element is fixed relative to the filtering housing, and the filtering element is rotatably arranged relative to the filtering housing.

[0007] In some embodiments, the filtering device further includes: a first driving member having a rotatable output end, and the filtering element is connected to the output end of the first driving member.

[0008] In some embodiments, the first driving member is placed outside the filtering housing, the output end of the first driving member is connected with a driving shaft, and the driving shaft extends into the filtering chamber and is connected to the connecting end of the filtering element.

[0009] In some embodiments, a connecting port is provided at the connecting end of the filtering element, and the filtering device includes a mounting member, and the mounting member is assembled in the connecting port and connected to the driving shaft.

[0010] In some embodiments, a connecting portion is provided at the connecting end of the filter element, the connecting port is disposed within the connecting portion, the head of the mounting member is placed within the connecting port, a supporting portion is provided on the circumferential side of the mounting member, and at least a part of the plane of the connecting portion is attached to the supporting portion.

[0011] In some embodiments, the circumferential sides of the connecting portion and the head of the mounting member are snap-connected.

[0012] In some embodiments, a connecting groove is provided at the tail of the mounting member, and the drive shaft is connected within the connecting groove.

[0013] In some embodiments, the cross-section of the part of the drive shaft connected to the connecting groove is a non-circular structure.

[0014] In some embodiments, a limiting groove is provided in the filter cavity; the filter element is further provided with a positioning end, the positioning end and the connecting end are oppositely arranged, and the positioning end is rotatably arranged within the limiting groove.

[0015] In some embodiments, the filter element is fixedly arranged relative to the filter housing, and the cleaning member is rotatably arranged relative to the filter housing.

[0016] In some embodiments, both ends of the filter element are snap-connected within the filter cavity.

[0017] In some embodiments, the filter device further includes: a second driving member having a rotatable output end, and the cleaning member is connected to the output end of the second driving member.

[0018] In some embodiments, the cleaning member includes: a cleaning frame disposed inside or / and outside the filter element; and cleaning brushes connected to the circumferential side of the cleaning frame facing the filter element.

[0019] In some embodiments, a water inlet is provided on the circumferential side of the filter housing, and a water outlet is provided at the end of the filter housing. Both the water inlet and the water outlet are in communication with the filter cavity.

[0020] In some embodiments, the axis of the water inlet and the axis of the filter element do not intersect.

[0021] In some embodiments, the water inlet direction of the water inlet is arranged tangentially along the circumferential surface of the filter housing.

[0022] In some embodiments, the housing is connected by two monomeric structures.

[0023] In a second aspect of the present application, the present application provides an electrical appliance including the above-mentioned filter device.

[0024] The electrical appliance with the above filtering device can alleviate the technical problem of clogging of the filter element to a certain extent, and it is an automatic cleaning solution that can avoid the time-consuming and laborious technical problem of manual cleaning, and has good practicability.

[0025] In some embodiments, the electrical appliance is a dishwasher. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Shows a schematic structural diagram of the first filtering device;

[0027] Figure 2 Shows Figure 1 exploded schematic diagram of;

[0028] Figure 3 Shows Figure 1 front view schematic diagram of;

[0029] Figure 4 Shows Figure 3 A-A sectional schematic diagram of;

[0030] Figure 5 Shows Figure 1 schematic structural diagram of the first cleaning part in;

[0031] Figure 6 Shows a schematic diagram of the internal structure of the first housing;

[0032] Figure 7 Shows a schematic diagram of the internal structure of the second housing;

[0033] Figure 8 Shows Figure 1 schematic structural diagram of the first filter element in;

[0034] Figure 9 Shows Figure 1 schematic structural diagram of the mounting part in;

[0035] Figure 10 Shows Figure 9 schematic structural diagram of another perspective of;

[0036] Figure 11 Shows Figure 1 schematic structural diagram of the first drive shaft in;

[0037] Figure 12 Shows Figure 6 sectional schematic diagram of;

[0038] Figure 13 Shows an exploded schematic diagram of the second filtering device;

[0039] Figure 14 ShowsFigure 13 Schematic diagram of the main housing in

[0040] Figure 15 shows Figure 13 Schematic diagram of the second filter element in

[0041] Figure 16 shows Figure 13 Schematic diagram of the cover in

[0042] Figure 17 shows Figure 13 Schematic diagram of the second cleaning element in

[0043] Figure 18 Schematic diagram of the water cup assembly;

[0044] Figure 19 shows Figure 18 Side view schematic diagram of

[0045] Figure 20 shows Figure 18 Explosion schematic diagram of

[0046] Figure 21 shows Figure 18 Schematic diagram of the B - B cross - section of

[0047] Figure 22 shows Figure 18 Schematic diagram of the cup body in

[0048] Figure 23 shows Figure 22 Schematic diagram of another perspective of

[0049] Explanation of reference numerals:

[0050] The first filtering device (main filtering device) - 100, filtering housing - 101, first housing - 1011, second housing - 1012, first seal - 1013, first filter element - 102, positioning end - 1021, connection end - 1022, connection port - 1023, connection part - 1024, second notch - 1025, first cleaning member - 103, first cleaning frame - 1031, first ring structure - 10311, connection column - 10312, first cleaning brush - 1032, first protrusion - 1033, first filtering chamber - 104, first notch - 1041, limiting groove - 1042, first limiting ring - 1043, water inlet - 105, first water inlet - 1051, second water inlet - 1052, third water inlet - 1053, water outlet - 106, first driving member - 107, first driving shaft - 108, first limiting surface - 1081, second limiting surface - 1082, sealing groove - 1083, mounting member - 109, supporting part - 1091, second protrusion - 1092, connection groove - 1093, first limiting ring - 110, first mounting groove - 111, second limiting ring - 112, second mounting groove - 113, second seal 114;

[0051] The second filtering device (auxiliary filtering device) - 200, second filtering housing - 201, main housing - 2011, cover - 2012, third seal - 2013, positioning recess - 2014, third protrusion - 2015, third protrusion - 2016, limiting hole - 2017, second cleaning member - 202, second cleaning frame - 2021, second cleaning brush - 2022, connection recess - 2023, second filter element - 203, second ring structure - 2031, third notch - 2032, third ring structure - 2033, third notch - 2034, second driving member - 204, second driving shaft - 205;

[0052] Inner container - 300;

[0053] Cup body - 400, water - containing cavity - 401, main cavity - 4011, water - dividing cavity - 4012, first water outlet part - 402, second water outlet part - 403, third water outlet part - 404, water inlet part - 405, fourth water outlet part - 406, drainage cavity - 407, drainage channel - 408;

[0054] Washing pump - 500;

[0055] Drainage pump - 600;

[0056] Spray arm assembly - 700. Detailed implementation manners

[0057] To enable those skilled in the art to which this application pertains to more clearly understand this application, the following will, in conjunction with the accompanying drawings in the embodiments of this application, clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without making creative efforts fall within the scope of protection of this application.

[0058] In a first aspect of this application, a filtering device is provided. This filtering device can automatically clean the filter, thereby solving to a certain extent the problems that the filtering device is prone to clogging and manual cleaning is time-consuming and laborious.

[0059] The filtering device provided by this application includes a filtering housing, a filtering element, and a cleaning element. Among them: The filtering housing is provided with a filtering cavity, an inlet and an outlet that communicate with the filtering cavity. The shape of the filtering cavity can be cylindrical, spherical, prismatic, etc., and can also be planar or curved. The filtering cavity can be used to accommodate the filtering element. The inlet communicates with the filtering cavity, so that the fluid medium can enter the filtering cavity through the inlet. The outlet communicates with the filtering cavity, so that the fluid medium in the filtering cavity can be discharged from the outlet. The filtering element is placed in the filtering cavity to filter the fluid medium flowing through the filtering element. The shape of the filtering element is adapted to the filtering cavity, and its gaps are arranged in the filtering cavity. Grid-like filtering holes can be provided on the peripheral side of the filtering element. The filtering holes of the filtering element are easily blocked by foreign matters such as food residues and oil stains. Once blocked, manual cleaning is required, which is time-consuming and laborious.

[0060] In one embodiment, the inlet can be oriented towards the peripheral side of the filtering element, and the outlet can be oriented towards the axial end of the filtering element, so that the fluid medium flows from the outer periphery of the filtering element into the interior and then is discharged from the axial end of the filtering element. In another embodiment, the inlet can be oriented towards the axial end of the filtering element, and the outlet can be oriented towards the peripheral side of the filtering element, so that the fluid medium enters from the axial end of the filtering element and then moves through the filtering holes to the outside of the filtering element; or, both the inlet and the outlet are oriented towards the peripheral side of the filtering element. The inlet and the outlet can be located on both sides of the filtering element or arranged at an angle on the outside of the filtering element, so that the fluid medium flows through the filtering element from the peripheral side on one side of the filtering element to the other side.

[0061] In one embodiment, the cleaning member is disposed inside the filtering member, and the filtering member and the cleaning member rotate relative to each other. During the rotation, the cleaning member sweeps the inner surface of the filtering member, so that the residues and foreign matters on the filtering member are separated from the filtering member, alleviating the problem of clogging of the filtering member to a certain extent. In another embodiment, the cleaning member is disposed outside the filtering member, and the filtering member and the cleaning member rotate relative to each other. During the relative rotation of the filtering member and the cleaning member, the cleaning member sweeps the outer surface of the filtering member, so that the residues and foreign matters on the filtering member are separated from the filtering member, alleviating the problem of clogging of the filtering member to a certain extent; or, cleaning members are provided both inside and outside the filtering member, and the filtering member and the cleaning member rotate relative to each other. During the relative rotation of the filtering member and the cleaning member, the cleaning members sweep the inner and outer surfaces of the filtering member, so that the residues and foreign matters on the filtering member are separated from the filtering member, alleviating the problem of clogging of the filtering member to a certain extent.

[0062] In one embodiment, the filtering member is fixed relative to the filtering housing, and the cleaning member rotates relative to the filtering housing to clean the stationary filtering member through the rotating cleaning member, alleviating the problem of clogging of the filtering member to a certain extent. In another embodiment, the cleaning member is fixed relative to the filtering housing, and the filtering member rotates relative to the filtering housing to clean the rotating filtering member through the stationary cleaning member, which can also alleviate the problem of clogging of the filtering member to a certain extent.

[0063] Appendix Figure 1 - Appendix Figure 12 The figure shows a filtering device according to an embodiment, which can be defined as a first filtering device 100. In the first filtering device 100, the filtering housing is defined as a first filtering housing 101, the cleaning member is defined as a first cleaning member 103, the filtering member is defined as a first filtering member 102, and the filtering chamber is defined as a first filtering chamber 104. The first cleaning member 103 is disposed outside the first filtering member 102, and the first cleaning member 103 is fixed relative to the first filtering housing 101, while the first filtering member 102 rotates relative to the first filtering housing 101. For other forms of filtering devices in which the filtering member rotates relative to the cleaning member, corresponding adjustments and designs can be made with reference to the first filtering device 100, which will not be elaborated here.

[0064] Figure 1 The figure shows a schematic structural diagram of the first filtering device. Figure 2 The figure shows Figure 1 an exploded schematic diagram of Figure 1 and Figure 2 , one or more water inlets 105 can be provided on the circumferential side of the first filtering housing 101, and a water outlet 106 is provided at the end of the first filtering housing 101. Both the water inlets 105 and the water outlet 106 communicate with the first filtering chamber 104. The fluid medium flows in from the water inlets 105, is filtered by the first filtering member 102, and then is discharged from the water outlet 106. For example: combining Figure 1 and Figure 2, two or more water inlets 105 may be provided on the circumferential side of the first filter housing 101 to provide multiple water inlets 105 to transport more media to the first filter chamber 104, so as to increase the filtration volume of the first filtering device 100. In other embodiments, more water inlets 105 may also be provided on the circumferential side of the first filter housing 101, which is not limited herein.

[0065] Figure 3 shows Figure 1 the front view schematic diagram of Figure 4 shows Figure 3 the A-A sectional view schematic diagram of Figures 1 - 4 , in an embodiment, the axis of the water inlet 105 and the axis of the first filter element 102 do not intersect, so that the fluid medium entering the first filter element 102 through the water inlet 105 of the first filter housing 101 does not pass through the central axis of the first filter element 102, but flows along the wall surface of the first filter element 102, thereby flushing the circumferential side of the first filter element 102, so as to increase the flow path and time of the fluid medium on the first filter element 102, improve the filtration effect, and can also clean the foreign matters on the first filter element 102 to a certain extent and relieve the phenomenon that the filter holes on the first filter element 102 are blocked. Combining Figure 1 , the water inlet direction of the water inlet 105 is preferably arranged tangentially along the circumferential surface of the first filter housing 101, so that the fluid medium entering the first filter element 102 through the water inlet 105 of the first filter housing 101 will flow in a spiral shape along the wall surface of the first filter element 102, so as to flush the circumferential side of the first filter element 102, increase the flow path and time of the fluid medium on the first filter element 102, improve the filtration effect, and can also clean the foreign matters on the first filter element 102 to a certain extent and relieve the phenomenon that the filter holes on the first filter element 102 are blocked. According to another embodiment of the present application, the axis of the water inlet 105 intersects the axis of the first filter element 102, that is, the water inlet direction of the water inlet 105 is perpendicular to the axial direction of the first filter element 102, and the effect of filtering the fluid medium can also be achieved.

[0066] Combining Figures 1 - 4, since both the first filter element 102 and the first cleaning element 103 are disposed within the first filter chamber 104 of the first filter housing 101, for the convenience of assembling the first filter element 102 and the first cleaning element 103 within the first filter chamber 104, the first filter housing 101 can be connected by two monomeric structures, which can be the first housing 1011 and the second housing 1012 respectively. The first housing 1011 and the second housing 1012 can be connected by screws or / and snap connections to form the first filter chamber 104. To improve the connection sealing performance between the first housing 1011 and the second housing 1012, a first seal 1013 is further provided between the first housing 1011 and the second housing 1012, and the first seal 1013 can be an X-shaped or O-shaped sealing ring.

[0067] Figure 5 shows Figure 1 the structural schematic diagram of the first cleaning element in Figure 5 , the first cleaning element 103 includes a first cleaning frame 1031 and a first cleaning brush 1032. The first cleaning frame 1031 is disposed outside the first filter element 102, and the first cleaning brush 1032 is connected to the circumferential side of the first cleaning frame 1031 facing the first filter element 102. That is to say, the first cleaning brush 1032 is located between the first cleaning frame 1031 and the first filter element 102, and the first cleaning frame 1031 is connected to the first filter chamber 104. Since the first cleaning frame 1031 is disposed outside the first filter element 102, therefore, the first cleaning frame 1031 is a circumferential surface extension structure to wrap the first filter element 102. Specifically, the first cleaning brush 1032 is snap-connected or / and bonded to the first cleaning frame 1031. There can be multiple first cleaning brushes 1032, such as two, three, or four, etc. The multiple first cleaning brushes 1032 are spaced apart. Under the condition that the first filter element 102 rotates for one cycle, the same part of the first filter element 102 can be cleaned by the multiple first cleaning brushes 1032, improving the cleaning effect on the first filter element 102.

[0068] Combined with Figure 5 , specifically, the first cleaning frame 1031 can be a frame structure adapted to the outer shape of the first filter element 102, which includes a plurality of first ring structures 10311 spaced along its axial direction, and the multiple ring structures are connected by connecting columns 10312. The first cleaning brush 1032 can be disposed inside each connecting column 10312.

[0069] Figure 6 shows the internal structural schematic diagram of the first housing Figure 7 shows the internal structural schematic diagram of the second housing. Combined with Figures 4 - 7 , the first cleaning frame 1031 is snap-connected to the first filter chamber 104. Specifically, as Figure 5As shown, a plurality of first protrusions 1033 are spaced apart at the end of the first cleaning frame 1031, such as Figure 6 and Figure 7 As shown, a first notch 1041 matching the first protrusion 1033 is provided inside the end of the first filtering chamber 104 (the first housing 1011 and the second housing 1012), such as Figure 4 As shown, the first protrusion 1033 is inserted into the corresponding first notch 1041 to fix the first cleaning frame 1031 inside the first filtering chamber 104. In another embodiment, a plurality of first notches 1041 are spaced apart at the end of the first cleaning frame 1031, and a first protrusion 1033 matching the notch is provided inside the end of the first filtering chamber 104. The first protrusion 1033 is inserted into the corresponding first notch 1041, which can also fix the first cleaning frame 1031 inside the first filtering chamber 104.

[0070] Figure 8 Shows Figure 1 The structural schematic diagram of the first filter element in Figure 8 Combined with

[0071] Combined with Figure 6 A limiting groove 1042 is provided at one end inside the first filtering chamber 104. The positioning end 1021 of the first filter element 102 is rotatably arranged in the limiting groove 1042. The limiting groove 1042 is an annular groove coaxial with the first filter element 102. The positioning end 1021 of the first filter element 102 is placed in the limiting groove 1042 with a gap, so that the first filter element 102 can rotate relative to the filter housing 101 under the drive of the first driving member 107. Specifically in implementation, a first limiting ring 110 is provided at the end of the first filtering chamber 104, and the first limiting ring 110 and the side wall of the filtering chamber are configured to form the above-mentioned limiting groove 1042.

[0072] In one embodiment, the first driving member 107 can be a driving motor. The first driving member 107 has a rotatable output end, and the output end of the first driving member 107 is connected to the first filter element 102 to drive the first filter element 102 to rotate relative to the first cleaning member 103.

[0073] Combined with Figures 1 - 4, in one embodiment, the first driving member 107 is located outside the filtering housing 101, without occupying the installation space of the first filter element 102 and the flow space of the fluid medium, and can also prevent the fluid medium from affecting the operation of the driving motor. Specifically, when implemented, the output end of the first driving member 107 is connected to a first driving shaft 108, and the first driving shaft 108 extends into the first filtering chamber 104 and is connected to the connecting end 1022 of the first filter element 102, so that the first filter element 102 rotates relative to the first cleaning member 103 under the drive of the first driving member 107. In another embodiment, the first driving member 107 can also be located inside the first filtering housing 101, but a sealed space needs to be provided for placing the first driving member 107. Now, the specific details of the connection and assembly of the first driving member 107 and the first filter element 102 will be further described with reference to the accompanying drawings.

[0074] Combined with Figure 2 、 Figure 4 and Figure 8 , a connection port 1023 is provided at the connecting end 1022 of the first filter element 102. The first filtering device 100 further includes a mounting member 109, and the mounting member 109 is assembled in the connection port 1023 and connected to the first driving shaft 108. When the first driving member 107 is started, the first driving shaft 108 and the mounting member 109 are driven to rotate in sequence, and then the first filter element 102 is driven to rotate. The setting of the mounting member 109 provides the mounting basis for the first filter element 102, and at the same time, the mounting member 109 can also be assembled with the first driving shaft 108 to realize the connection and assembly between the first driving shaft 108 and the first filter element 102.

[0075] Combined with Figure 8 , specifically, when implemented, a connecting portion 1024 is provided at the connecting end 1022 of the first filter element 102, and a mounting port is provided in the connecting portion 1024. Figure 9 Shows Figure 1 the structural schematic diagram of the mounting member in Figure 9 , combined with

[0076] Combined with Figure 9, a support portion 1091 is provided on the circumferential side of the head of the mounting member 109, and at least a part of the plane of the connecting portion 1024 is attached to the support portion 1091. The connecting portion 1024 can be a connecting ring, which is located inside the first filter element 102. The inner ring of the connecting ring is configured as a connecting port 1023. The support portion 1091 of the head of the mounting member 109 is a support ring surface. The end face of the connecting ring is attached to the support ring surface, so that the mounting member 109 supports the first filter element 102. In another embodiment, the circumferential surface of the mounting member 109 can be provided with multiple levels of annular steps, such as three-level annular steps or four-level annular steps. One of the step surfaces of the multiple levels of annular steps forms a support ring surface that fits with the connecting ring, and one of the remaining step surfaces of the multiple levels of annular steps abuts against the connecting end 1022 of the first filter element 102.

[0077] Combined with Figure 9 , in one embodiment, the head of the mounting member 109 can be conical to form a guiding structure on its circumferential side to facilitate the assembly of the mounting member 109 and the first filter element 102. In another embodiment, the head of the mounting member 109 can also be cylindrical.

[0078] Combined with Figure 8 and Figure 9 , the connecting portion 1024 and the circumferential side of the head of the mounting member 109 are snap-connected. In one embodiment, a plurality of second notches 1025 can be provided on the connecting portion 1024 at intervals around the central axis of the connecting portion 1024. The head of the mounting member 109 is provided with a plurality of second protrusions 1092. The second protrusions 1092 and the second notches 1025 are correspondingly arranged. The second protrusions 1092 are inserted into the corresponding second notches 1025 to achieve the snap-fit assembly of the connecting portion 1024 and the head of the mounting member 109. In another embodiment, the second notches 1025 can also be provided on the head of the mounting member 109, and the second protrusions 1092 are provided on the connecting portion 1024, which can also achieve the assembly of the mounting member 109 and the connecting portion 1024.

[0079] Figure 10 shows Figure 9 a schematic structural diagram of another perspective of Figure 11 shows Figure 1 the structural schematic diagram of the first drive shaft in Figure 10 and Figure 11 , a connecting groove 1093 is provided at the tail of the mounting member 109, and the first drive shaft 108 is connected in the connecting groove 1093. The cross-section of the part of the first drive shaft 108 connected to the connecting groove 1093 is a non-circular structure. For example, the cross-section of the part of the first drive shaft 108 extending into the connecting groove 1093 is cross-shaped, triangular prism-shaped, quadrangular prism-shaped, flower-shaped, etc. The shape of the connecting groove 1093 matches the non-circular structure of the first drive shaft 108, so that the first drive shaft 108 can rotate synchronously with the mounting member 109.

[0080] Combined with Figure 11 , the first drive shaft 108 is provided with a stepped structure. The top of the stepped structure is the first limiting surface 1081. The first limiting portion 1081 abuts and limits against the top of the connection groove 1093 of the mounting member 109. The peripheral side of the stepped structure is the second limiting surface 1082. A sealing groove 1083 is provided on the second limiting surface 1082. A second sealing member 114 is provided between the sealing groove 1083 and the filter housing 101 ( Figure 2 and Figure 4 as shown). The second sealing member 114 can be an X-shaped sealing member or an O-shaped sealing member to improve the sealing performance of the connection of the first drive shaft 108 in the connection groove 1093.

[0081] Combined with Figure 6 , for the first filtering device 100 provided in the present application, the water outlet 106 is located at the axial end of the first filter housing 101, and the water inlet 105 is located on the peripheral side of the first filter housing 101. Figure 12 shows Figure 6 a schematic cross-sectional view of Figure 4 and Figure 12 , two first limiting rings 110 are provided in the first housing 1011. The radial dimensions of the two first limiting rings 110 are different. The two first limiting rings 110 and the inner wall of the first housing 1011 enclose a limiting groove 1042 for accommodating the positioning end 1021 of the first filter element 102; the limiting ring located on the outside and the inner wall of the first housing 1011 form a first installation groove 111 for accommodating the end of the first cleaning frame 1031 to roughly position the first cleaning frame 1031 during the assembly process. A structure for clamping with the first cleaning frame 1031 is provided at the bottom of the first installation groove 111. After rough positioning, it is then clamped with the first cleaning frame 1031.

[0082] Combined with Figure 4 , the second housing 1012 is provided with a second limiting ring 112. The outer peripheral surface of the bottom of the mounting member 109 abuts against the inner ring surface of the second limiting ring 112. The outer ring surface of the second limiting ring 112 and the side wall of the second housing 1012 enclose a second installation groove 113 for accommodating the other end of the first cleaning frame 1031 to roughly position the first cleaning frame 1031 during the assembly process. A structure for clamping with the first cleaning frame 1031 is provided at the bottom of the second installation groove 113. After rough positioning, the first cleaning frame 1031 is rotated and clamped, and finally the first housing 1011 and the second housing 1012 are connected together.

[0083] Appendix Figure 13 -Appendix Figure 17A filtering device of another embodiment is shown. The filtering device is defined as a second filtering device 200. In the second filtering device 200, the filtering housing is defined as a second filtering housing 201, the cleaning member is defined as a second cleaning member 202, the filtering member is defined as a second filtering member 203, and the filtering cavity is defined as a second filtering cavity. The second cleaning member 202 is placed inside the second filtering member 203. Moreover, the second filtering member 203 is fixed relative to the second filtering housing 201, and the second cleaning member 202 rotates relative to the second filtering housing 201. For the filtering devices in other forms where the cleaning member rotates relative to the filtering member, corresponding adjustments and designs can be made by referring to the second filtering device 200, which will not be elaborated here. Now, by means of the attached Figure 13 - attached Figure 17 The specific details of the second filtering device 200 will be further described.

[0084] Figure 13 An exploded schematic diagram of the second filtering device is shown. Combining Figure 13 , similar to the first filtering housing 101, for the convenience of assembling the second cleaning member 202 and the second filtering member 203 inside the second filtering housing 201, the second filtering housing 201 is also connected by two monomeric structures. The two monomeric structures of the filtering housing 101 are respectively a main housing 2011 and a cover 2012. The main housing 2011 can be a columnar structure with an opening at one axial end. The cover 2012 can be detachably covered at the opening of the main housing 2011 by means of snap connection or screw connection, etc. The cover 2012 and the main housing 2011 form the second filtering cavity to facilitate the assembly of the filtering member and the cleaning member inside the filtering housing 101. To improve the seal between the cover 2012 and the main housing 2011, a third sealing member 2013 is also provided between the cover 2012 and the main housing 2011. The third sealing member 2013 can be an O-ring or an X-ring, which is not limited here.

[0085] Similar to the first filtering device 100, water inlets and outlets communicating with the second filtering cavity are also provided on the circumferential side of the main housing 2011 of the second filtering device 200, so that the fluid medium can flow into the second filtering cavity through the water inlets and be led out from the water outlets after being filtered by the second filtering member 203.

[0086] Figure 14 Shows Figure 13 The structural schematic diagram of the main housing in Figure 14, a positioning recess 2014 is provided at the bottom of the main housing 2011. The water inlet can be arranged on the periphery of the positioning recess 2014, and the water outlet is arranged on the periphery of the main housing 2011, and the water outlet is arranged above the water inlet. The medium fluid is injected into the main housing through the water inlet at the bottom of the main housing 2011 and flows in the direction of the water outlet in the main housing 2011. During the flowing process, after being filtered by the second filter element 203, the medium fluid is led out from the water outlet. The water outlet is preferably arranged at the top position of the main housing 2011 so that there is a relatively large height difference between the water outlet and the water inlet, so as to extend the flow path of the medium fluid in the second filter element 203 and improve the filtering effect on the medium fluid.

[0087] Figure 15 shows Figure 13 the structural schematic diagram of the second filter element in Figure 14 and Figure 15 , the bottom of the second filter element 203 is clamped on the top of the side wall of the positioning recess 2014. In one embodiment, a second ring structure 2031 is arranged on the periphery of the bottom of the second filter element 203, and a plurality of third notches 2032 are arranged at intervals on the second ring structure 2031. A plurality of third protrusions 2015 are arranged at intervals on the top of the side wall of the positioning recess 2014, and the plurality of third protrusions 2015 are inserted into the corresponding third notches 2032 to connect the bottom of the second filter element 203 to the top of the side wall of the positioning recess 2014. In another embodiment, a plurality of third protrusions 2015 are arranged at intervals on the second ring structure 2031 on the periphery of the bottom of the second filter element 203, and a plurality of third notches 2032 are arranged at intervals on the top of the side wall of the positioning recess 2014. The plurality of third protrusions 2015 are inserted into the corresponding third notches 2015, and the bottom of the second filter element 203 can also be connected to the top of the side wall of the positioning recess 2014.

[0088] Figure 16 shows Figure 13 the structural schematic diagram of the cover in Figure 15 and Figure 16, the top of the second filter element 203 is snap - connected to the top of the cover 2012. In one embodiment, a third annular structure 2033 is provided on the circumferential side of the top of the second filter element 203, and a plurality of fourth notches 2034 are spaced apart on the third annular structure 2033. A plurality of fourth protrusions 2016 are spaced apart on the bottom of the cover 2012, and the plurality of fourth protrusions 2016 are inserted into the corresponding fourth notches 2034 to snap - connect the top of the second filter element 203 to the bottom of the cover 2012. In another embodiment, a plurality of fourth protrusions 2016 are spaced apart on the third annular structure 2033 on the circumferential side of the top of the second filter element 203, and a plurality of fourth notches 2034 are spaced apart on the bottom of the cover 2012. The plurality of fourth protrusions 2016 are inserted into the corresponding fourth notches 2034, and the top of the second filter element 203 can also be connected to the bottom of the cover 2012.

[0089] Figure 17 shows Figure 13 the structural schematic diagram of the second cleaning element in Figure 17 , the second cleaning element 202 includes a second cleaning frame 2021 and a second cleaning brush 2022. The second cleaning frame 2021 is placed inside the second filter element 203, and the second cleaning brush 2022 can be connected to the circumferential side of the second cleaning frame 2021 facing the second filter element 203 by snap - connection or bonding. There can be a plurality of second cleaning brushes 2022, such as two, three, or four, etc., and the plurality of second cleaning brushes 2022 are spaced apart. Under the condition that the second cleaning element 202 rotates for one cycle, the same part of the second filter element 203 can be cleaned by the plurality of second cleaning brushes 2022, improving the cleaning effect on the second filter element 203.

[0090] Combined with Figure 17 , in one embodiment, the second cleaning frame 2021 of the second cleaning element 202 can be extended along the radial direction of the second filter element 203, and the central axis of the second cleaning frame 2021 is coaxial with the second filter element 203. According to another embodiment of the present application, the second cleaning frame 2021 of the second cleaning element 202 can also be a columnar structure and is coaxially arranged with the second filter element 203.

[0091] Combined with Figure 13 , the second filtering device 200 further includes a second driving member 204. The second cleaning element 202 is connected to the second driving member 204 to drive the second cleaning element 202 to rotate inside the second filter element 203 to clean foreign matters on the filter holes of the second filter element 203.

[0092] Combined with Figure 13, consistent with the first filtering device 100, the second driving member 204 of the second filtering device 200 can also be a driving motor, which is placed below the bottom of the main housing 2011. The output end of the second driving member 204 can enter the main housing 2011 through the second driving shaft 205 and is connected to the second cleaning frame 2021.

[0093] Combined Figure 17 , in specific implementation, the second cleaning frame 2021 is provided with a connecting recess 2023, and the second driving shaft 205 is connected in the connecting recess 2023. The cross-section of the part where the second driving shaft 205 is connected to the connecting recess 2023 is a non-circular structure. For example, the cross-section of the part of the second driving shaft extending into the connecting recess 2023 is cross-shaped, triangular prism, quadrangular prism, flower-shaped, etc. The shape of the connecting recess 2023 matches the non-circular structure of the first driving shaft 108, so that the second cleaning frame 2021 rotates synchronously with the second driving shaft. For the connection method of the driving shaft of the first filtering device 100, reference can be made specifically, and details will not be elaborated here.

[0094] Combined Figure 16 , a limiting hole 2017 is provided on the inner side of the cover 2012. The top of the second cleaning frame 2021 can be rotatably connected to the limiting hole 2017 through the connecting shaft 2024. During the process of the second driving member 204 driving the second cleaning member 202 to rotate, this connecting shaft also rotates correspondingly in the limiting hole 2017 to improve the smoothness of the rotation of the second cleaning frame 2021.

[0095] In the filtering device provided by the present application, during the process of filtering the fluid medium, by controlling the relative rotation of the cleaning member and / or the filtering member to clean the foreign matters on the filtering member, the technical problem of clogging of the filtering member is alleviated to a certain extent, so as to improve the smoothness of the medium fluid, and it has good practicability.

[0096] In the second aspect of the present application, an electrical appliance is provided, and the electrical appliance includes the above-mentioned filtering device.

[0097] The electrical appliance with the above-mentioned filtering device can alleviate the technical problem of clogging of the filtering member of the filtering device to a certain extent, so as to improve the smoothness of the medium fluid, and it has good practicability.

[0098] In an embodiment, the electrical appliance can be a dishwasher. According to another embodiment of the present application, the electrical appliance can also be other devices that need to filter fluid media, such as a water dispenser, etc., which are not limited here. Taking the dishwasher as an example, the layout of the filtering device in the dishwasher will be described.

[0099] In the related art, the dishwasher includes an inner tank 300 and a cup body 400. After the tableware is cleaned, the washing pump 500 stops working, and the drain pump 600 discharges the water in the water cup to the municipal pipe network.

[0100] Since the water collected in the water-containing cavity 401 of the cup body 400 is the residual water after cleaning the tableware, when filtering the residual water through the filtering device, the filtering holes of the filtering device are likely to be blocked, affecting the cleaning effect and cleaning efficiency of the tableware.

[0101] Based on the above technical problems, the present application provides a water cup assembly. Figure 18 The structural schematic diagram of the water cup assembly is shown. Figure 19 Shows Figure 18 The side view schematic diagram of Figure 20 Shows Figure 18 The explosion schematic diagram of Figure 21 Shows Figure 18 The B-B sectional schematic diagram of Figure 22 Shows Figure 18 The structural schematic diagram of the cup body in Figures 18 - 22 Combined with

[0102] In the water cup assembly provided by the present application, the residual water after cleaning the tableware enters the water-containing cavity 401 of the cup body 400 for temporary storage. Since the water-containing cavity 401 is divided into a main cavity 4011 and a water distribution cavity 4012, and the main cavity 4011 and the water distribution cavity 4012 are communicated, the washing water entering the main cavity 4011 can flow into the water distribution cavity 4012. Since the auxiliary filtering device 200 is arranged in the water distribution cavity 4012, the washing water flowing through the auxiliary filtering device 200 in the water distribution cavity 4012 can be filtered, improving the cleanliness of the washing water; since the main filtering device 100 is communicated with the main cavity 4011, the main filtering device 100 can filter the washing water discharged from the main cavity 4011. Under the action of the washing pump 500, the washing water filtered by the auxiliary filtering device 200 and the main filtering device 100 is conveyed to the spray arm of the dishwasher to clean the tableware. During the actual use process, if some of the filtering holes of the main filtering device 100 are blocked, the unblocked filtering holes of the auxiliary filtering device 200 and the main filtering device 100 can provide sufficient washing water required by the spray arm to avoid affecting the cleaning effect and cleaning efficiency of the tableware, having good practicability.

[0103] In one embodiment, the main filtering device 100 may be the above-mentioned first filtering device 100, and the auxiliary filtering device 200 may be the above-mentioned second filtering device 200. By means of the relatively rotating cleaning member or filtering member, foreign matters on the filtering member are cleaned, so as to alleviate the technical problem of filtering member blockage to a certain extent, improve the smoothness of the medium fluid, ensure the smooth delivery of the washing water, and thus avoid affecting the cleaning effect and cleaning efficiency of tableware. Under the condition that the auxiliary filtering device 200 adopts the above-mentioned second filtering device 200, the second filtering chamber of the second filtering housing 201 of the second filtering device 200 is the water distribution chamber 4012. In another embodiment, the main filtering device 100 and the auxiliary filtering device 200 may also adopt other types of filtering devices, such as a filtering device without a cleaning member, etc., which will not be elaborated here. Now, with the attached Figure 22 - attached Figure 23 , the specific details of the water cup assembly are further described.

[0104] Combined with Figure 22 , the cup body 400 of the water cup assembly of the present application is a container with an open top. A closed container is provided inside the cup body 400. The closed container may be the above-mentioned water distribution chamber 4012 or the second filtering housing of the second filtering device 200. In one embodiment, the water distribution chamber 4012 may be eccentrically arranged with the cup body 400. In another embodiment, the water distribution chamber 4012 may also be concentrically arranged with the cup body 400, which is not limited here.

[0105] In order to realize the communication between the main chamber 4011 and the water distribution chamber 4012 inside the cup body 400, one or more openings (not shown in the figure) may be provided on the periphery of the water distribution chamber 4012 to communicate the main chamber 4011 with the water distribution chamber 4012. The opening is preferably provided at the bottom of the water distribution chamber 4012 so that the washing water received by the main chamber 4011 flows into the water distribution chamber 4012, avoiding its residue at the bottom of the main chamber 4011.

[0106] Figure 23 Shows Figure 22 Another perspective structural schematic diagram of. Combined with Figure 23 , the cup body 400 is further provided with a first water outlet part 402 and a second water outlet part 403. The first water outlet part 402 is communicated with the main chamber 4011, and the second water outlet part 403 is communicated with the water distribution chamber 4012. The first water outlet part 402 and the second water outlet part 403 may be in a pipe structure and are configured as two water outlet connectors of the cup body 400. Combined with Figure 1, the water inlet 105 of the first filtering device 100 has two water inlets, namely a first water inlet 1051 and a second water inlet 1052. The first water inlet 1051 is communicated with the first water outlet part 402, so that the washing water in the main cavity 4011 can directly enter the first filtering cavity 104 of the first filtering device 100 through the first water outlet part 402 and the first water inlet 1051, and is discharged from the water outlet 106 after being filtered by the first filtering element 102 inside. The second water inlet 1052 is communicated with the second water outlet part 403, and the washing water filtered by the second filtering element 203 of the second filtering device 200 enters the filtering cavity of the first filtering housing 101 through the second water outlet part 403 and the second water inlet 1052. In one embodiment, the second water inlet 1052 is arranged at the end of the first filtering housing 101 of the first filtering device 100, and the washing water entering the filtering cavity of the first filtering housing 101 through the second water inlet 1052 does not flow through the filtering cavity of the first filtering housing 101, but is directly discharged from the water outlet 106 at the end of the first filtering housing 101 of the first filtering device 100. In another embodiment, the second water inlet 1052 is arranged on the circumferential side of the first filtering housing 101 of the first filtering device 100. The washing water entering the second filtering cavity of the first filtering housing 101 through the second water inlet 1052 flows through the filtering cavity of the first filtering housing 101 for secondary filtering and then is conveyed to the spray arm assembly; alternatively, the first filtering device 100 may not be provided with the second water inlet 1052, and the second water outlet part 403 of the water cup is directly connected to the washing pump 500. Compared with the technical solution in which the first filtering device 100 is not provided with the second water inlet 1052, the second filtering device 200 provided with the second water inlet 1052 can connect the second water outlet part 403 to the washing pump 500, which saves more space.

[0107] It can be seen from this that the washing water after washing the tableware is divided into two paths after entering the main cavity 4011 of the cup body 400. One path enters the water distribution cavity 4012 from the main cavity 4011, and is conveyed to the spray arm assembly through the second filtering element and the second water outlet part 403. The other path is discharged from the first water outlet part 402 of the main cavity 4011 to the first filtering element 102 of the first filtering device 100 for filtering and then conveyed to the spray arm assembly. Therefore, the water cup assembly provided by the present application provides two cleaning paths for supplying washing water to the spray arm assembly to supply sufficient washing water for use, so as to improve the cleaning effect and cleaning efficiency of the tableware, and has good practicability.

[0108] Combined with Figure 23 , in some embodiments, a third water outlet part 404 is further arranged on the cup body 400. The third water outlet part 404 is communicated with the positioning recess 2014 of the water distribution cavity 4012. The third water outlet part 404 can also be a pipe structure and is configured as the third water outlet joint of the water cup. Correspondingly, combined with Figure 1, the water inlet 105 of the first filtering device 100 further includes a third water inlet 1053, and the third water inlet 1053 is communicated with the third water outlet part 404, so that the washing water in the positioning recess 2014 in the water distribution cavity 4012 enters the first filtering cavity 104 of the first filtering device 100 through the third water outlet part 404 and the third water inlet 1053, and is discharged from the water outlet 106 after being filtered by the first filtering element 102 inside it. This can avoid the phenomenon of peculiar smell caused by the inability to discharge the washing water accumulated in the positioning recess 2014, so as to improve the cleaning quality and user experience. In addition, the third water outlet part 404, the second water outlet part 403 and the first water outlet part 402 can form three conveying paths, which can ensure the conveying flow rate of the washing water and avoid the technical problem of insufficient conveying of the washing water caused by the blockage of the filtering holes of the filtering device, so as to improve the cleaning efficiency of the dishwasher.

[0109] During specific implementation, the first water outlet part 402 and the third water outlet part 404 on the cup body 400 are preferably arranged at the bottom of the cup body 400 as much as possible to lead out the residual water in the cup body 400 as much as possible, so as to avoid the phenomenon of peculiar smell caused by the inability to discharge the washing water accumulated in the positioning recess 2014, so as to improve the cleaning quality and user experience. The second water outlet part 403 can be arranged at a higher position to avoid the first water outlet part 402 and the third water outlet part 404 and have a certain height difference, so as to make reasonable use of the internal space of the dishwasher.

[0110] Combined Figure 22 and Figure 23 , the cup body 400 is further provided with a water inlet part 405 and more than one fourth water outlet part 406. Among them, the water inlet part 405 is communicated with the output part of the washing pump 500 to introduce the filtered washing water. The water inlet part 405 is communicated with the fourth water outlet part 406, and the fourth water outlet part 406 is used to be connected with the spray arm assembly. Therefore, under the action of the washing pump 500, the filtered washing water is discharged to the spray arm assembly of the dishwasher through the water inlet part 405 and the fourth water outlet part 406, and the tableware is cleaned by spraying water from the spray arm. In one embodiment, the fourth water outlet part 406 can be arranged as two, and the two fourth water outlet parts 406 are respectively connected to the upper spray arm and the lower spray arm of the spray arm assembly. In another embodiment, the fourth water outlet part 406 can also be arranged as three, and the three fourth water outlet parts 406 are respectively connected to the upper spray arm, the middle spray arm and the lower spray arm of the spray arm assembly. When multiple fourth water outlet parts 406 are arranged, the cup body 400 is further provided with a communicating cavity (not shown in the figure), and the communicating cavity is communicated with the water inlet part 405 and multiple fourth water outlet parts 406 to divide the washing water filtered by the water inlet part 405 into each fourth water outlet part 406.

[0111] In this application, by providing a water inlet part 405 and more than one fourth water outlet part 406 on the cup body 400, the connection between the washing pump 500 and the spray arm assembly is realized, and there is no need to set up the corresponding connection pipeline between the washing pump 500 and the spray arm assembly. It has the effects of compact structure and improved space utilization rate.

[0112] It should be noted that in other embodiments, the washing pump 500 can also be connected to the spray arm assembly through structures such as a three-way valve, which is not limited here.

[0113] In one embodiment, in combination with Figure 22 , the cup body 400 is further provided with a drainage cavity 407 and a drainage channel 408. The drainage cavity 407 is arranged on the peripheral side of the cup body 400. At least part of the drainage pump 600 can be loaded in the drainage cavity 407. The drainage cavity 407 is connected to the inside of the water distribution cavity 4012 through the drainage channel 408 to drain the residual water in the water cup after the tableware washing is completed, so that the dishwasher is dried clean and the generation of peculiar smell due to the fermentation of foreign matters is avoided.

[0114] In combination with Figure 22 and Figure 23 , the first water outlet part 402, the second water outlet part 403, the third water outlet part 404 and the water inlet part 405 are all located on the same side of the cup body 400, which is convenient for direct connection with the second filtering device 200, the washing pump 500, etc. Without the need to set up pipelines, the structure is compact and the space utilization rate is improved. The drainage cavity 407 is located on the other side of the cup body 400, so that the cyclic discharge and drainage of water are located on both sides of the cup body 400, which is convenient for pipeline layout. The fourth water outlet part 406 is located at the top of the cup body 400, which is convenient for connection with the spray arm assembly above the tableware and saves space. In another embodiment, the drainage cavity 407 can also be on the same side of the cup body 400 as the first water outlet part 402, the second water outlet part 403, and the third water outlet part 404.

[0115] Based on the above water cup assembly, this application also provides a dishwasher, which includes the above water cup assembly. The dishwasher with the above water cup assembly can provide sufficient washing water required by the spray arm to avoid affecting the cleaning effect and cleaning efficiency of the tableware. In addition, foreign matters on the filtering element can be cleaned by relatively rotating cleaning elements or filtering elements, so as to alleviate the technical problem of blockage of the filtering element to a certain extent, improve the smoothness of the medium fluid, ensure the smooth delivery of the washing water, and avoid affecting the cleaning effect and cleaning efficiency of the tableware, which has good practicability.

[0116] Based on the above water cup assembly, the present application also provides a dishwasher water circuit system, which includes a washing pump 500, a drainage pump 600, a spray arm assembly 700, and the above water cup assembly. Among them, the main filtration device 100 of the water cup assembly is sequentially connected to the washing pump 500 and the spray arm assembly 700, and the drainage pump 600 is communicated with the water-containing cavity 401. The dishwasher water circuit system with the above water cup assembly can provide sufficient washing water required by the spray arms to avoid affecting the cleaning effect and cleaning efficiency of tableware. In addition, foreign objects on the filtration member can be cleaned by the relatively rotating cleaning member or filtration member, which can alleviate the technical problem of filtration member blockage to a certain extent, improve the smoothness of the medium fluid, ensure the smooth delivery of washing water, and avoid affecting the cleaning effect and cleaning efficiency of tableware, having good practicability.

[0117] The specific working process of the dishwasher water circuit system provided by the present application is as follows:

[0118] When the dishwasher is in the working state, the drainage pump 600 is closed. The water for cleaning tableware gathers at the bottom of the inner cavity 300 and then enters the main cavity 4011 of the cup body 400. A part of the water enters the first filtration device 100 along the first water outlet 402 and the first water inlet 1051, and after being filtered by the first filtration device 100, it is output by the washing pump 500 and distributed to each spray arm of the spray arm assembly to clean the tableware; another part of the water in the main cavity 4011 flows to the water distribution cavity 4012. A part of the washing water in the water distribution cavity 4012 is filtered by the second filtration member 203, and then reaches the second filtration device 200 along the second water outlet 403 and the second water inlet 1052, and is distributed to each spray arm of the spray arm assembly under the power action of the washing pump 500 to clean the tableware.

[0119] After the tableware is cleaned, the drainage pump 600 is turned on to discharge the washing water containing pollutants in the main cavity 4011 and the water distribution cavity 4012 in the cup body 400 to the municipal pipe network through the drainage channel 408, so that the dishwasher is dried and clean, and the generation of peculiar smell due to the fermentation of foreign objects is avoided.

[0120] It should be noted that the operation timing of the first filtration device 100 and / or the second filtration device 200 of the present application can be at a certain stage during the operation of the dishwasher, or after the operation of the dishwasher. The user can control the operation of the first filtration device 100 and / or the second filtration device 200 through instructions, and no limitation is made here.

[0121] In this application, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include contact between the first and second features through additional features therebetween rather than direct contact. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0122] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to this application.

[0123] In this application, unless otherwise clearly specified or limited, the terms "connection", "fixation", etc. shall be understood in a broad sense. For example, "fixation" may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0124] In addition, in this application, descriptions such as "first", "second", etc. are only for descriptive purposes, and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "a plurality" is two or more, unless otherwise specifically and clearly limited.

[0125] Although the embodiments of this application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and purpose of this application, and the scope of this application is defined by the claims and their equivalents.

Claims

1. A filtering device, characterized in that: The filtering device comprises: A filter housing is provided with a filter chamber and a water inlet and a water outlet communicated with the filter chamber; A filter element is placed in the filter cavity to filter the fluid medium flowing through the filter element; The cleaning element is placed inside the filter element and / or outside the filter element, and the filter element and the cleaning element rotate relatively.

2. The filtering device according to claim 1, characterized in that: The cleaning element is fixed relative to the filter housing, and the filter element is rotatably arranged relative to the filter housing.

3. The filtering device according to claim 2, characterized in that: The filtering device also includes: The first driving member has a rotatable output end, and the filter element is connected to the output end of the first driving member.

4. The filtering device according to claim 3, characterized in that: The first driving member is disposed outside the filter housing, and an output end of the first driving member is connected with a driving shaft, which extends into the filter cavity and is connected with a connecting end of the filter member.

5. The filtering device according to claim 4, characterized in that: The connection end of the filter element is provided with a connection port, and the filter device comprises a mounting member, which is assembled in the connection port and connected to the drive shaft.

6. The filtering device according to claim 5, characterized in that: The connection end of the filter element is provided with a connection part, the connection port is provided in the connection part, the head of the mounting element is placed in the connection port, the surrounding side of the mounting element is provided with a support part, and at least part of the plane of the connection part is attached to the support part.

7. The filtering device according to claim 6, characterized in that: The connecting portion is connected to the peripheral side of the head of the mounting member by snap-fitting.

8. The filtering device according to any one of claims 5 to 7, characterized in that: A connecting groove is arranged at the tail of the mounting member, and the driving shaft is connected in the connecting groove.

9. The filtering device according to claim 8, characterized in that: The cross section of the portion where the driving shaft is connected to the connecting groove is a non-circular structure.

10. The filtering device according to any one of claims 4 to 7 and 9, characterized in that: The filter cavity is provided with a limiting groove; The filter element is further provided with a positioning end, the positioning end and the connecting end are arranged opposite to each other, and the positioning end is rotatably arranged in the limiting groove.

11. The filtering device according to claim 1, characterized in that: The filter element is fixedly arranged relative to the filter housing, and the cleaning element is rotatably arranged relative to the filter housing.

12. The filtering device according to claim 11, characterized in that: Two ends of the filter element are respectively clamped in the filter cavity.

13. The filtering device according to claim 11, characterized in that: The filtering device also includes: The second driving member has a rotatable output end, and the cleaning member is connected to the output end of the second driving member.

14. The filtering device according to any one of claims 1 to 7, 9 and 11 to 13, characterized in that: The cleaning element comprises: A cleaning frame, disposed inside the filter element and / or outside the filter element; A cleaning brush is connected to the peripheral side of the cleaning frame facing the filter element.

15. The filtering device according to any one of claims 1 to 7, 9 and 11 to 13, characterized in that: A water inlet is arranged on the peripheral side of the filter housing, and a water outlet is arranged at the end of the filter housing. Both the water inlet and the water outlet are communicated with the filter cavity.

16. The filtering device according to claim 15, characterized in that The axis of the water inlet and the axis of the filter element do not intersect.

17. The filtering device according to claim 16, characterized in that The water inlet direction of the water inlet is arranged along the tangent direction of the circumferential surface of the filter housing.

18. The filtering device according to any one of claims 1-7, 9, 11-13 and 16-17, characterized in that: The housing is connected by two single body structures.

19. An electrical device, characterized in that: The electrical equipment comprises the filtering device according to any one of claims 1-18.

20. An electrical device according to claim 19, characterized in that: The electrical appliance is a dishwasher.

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