A washing device of a dishwasher and a dishwasher

Abstract

The application discloses a washing device of a dish-washing machine and the dish-washing machine, and the washing device comprises a motor, a rotating shaft coaxially arranged on the motor shell, a washing pump with a washing impeller fixed on the rotating shaft, and a heating disc sleeved on the outside of the motor shell, wherein the heating disc comprises a heating body, an inner bending part extending downward along the inside of the heating body, and an outer bending part extending downward along the outside of the heating body, and the inner bending part, the heating body and the outer bending part surround a concave cavity, and a heating component is arranged in the concave cavity. The heating disc is arranged on the outside of the motor shell, so that the washing water entering the washing pump cavity must flow through the upper surface of the heating body, the washing water reaching the washing pump cavity is heated in the heating state, and the heating efficiency is improved. The concave cavity forms a containing space of the heating component, and the leaked water drops cannot reach the concave cavity, so that the safety of the heating component is protected.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of dishwashers, and particularly relates to a washing device of a dishwasher and the dishwasher. BACKGROUND

[0002] The dishwasher is a device for automatically cleaning dishes, chopsticks, plates, bowls, knives and forks, and can be divided into box type and conveying type according to the structure, and is often used in families, restaurants, hotels and unit canteens, thereby reducing labor intensity, improving work efficiency and improving cleanliness.

[0003] The dishwasher usually mainly comprises a washing device, a washing cavity and a control device, the main function of the washing device is to drive the washing pump to send water into the washing cavity through the motor, and the water is heated in the process of water delivery or is delivered to the heating cavity for heating; in the impeller type dishwasher, the impeller is connected with the rotating shaft of the motor, and in the working process, the motor drives the impeller to rotate at high speed, so that the water in the washing pump cavity is splashed upwards with the impeller, so as to clean the dishes; in the working process of the nozzle type dishwasher, the washing device pours water into a cavity at the bottom, a heater heats the water to about 54-60 degrees Celsius in the cavity, then the water is pushed to the water spray head by a pump, and is sprayed to the dishes in the washing cavity, and the water is sprayed to different directions by the pressure nozzle, so that the dishes in the washing cavity are fully washed.

[0004] At present, the dishwasher produced and sold on the market has a large overall volume of the heater, and is located in the washing cavity or the heating cavity, and the structure of the washing pump and the motor is large in size and occupies a large working space; in order to save space, a technical solution of integrating the heating function in the washing pump is appeared, but the result often damages the original flow channel structure, thereby causing additional hydraulic loss. Specifically, the washing pump integrated with the heating function in the existing dishwasher usually adopts a heating pipe type heating mode, due to the existence of the heating pipe of the washing pump, the size of the pump cavity is increased, thereby seriously affecting the hydraulic efficiency of the whole pump, and it is very difficult to increase the heating power in the limited space due to the limited heat exchange area of the heating pipe.

[0005] The above information disclosed in the background of the application is only used to increase the understanding of the background of the application, and therefore, it can include prior art known by those skilled in the art. SUMMARY

[0006] The present application is directed to the above-mentioned problems in the prior art, and proposes a washing device of a dishwasher, which is beneficial to the simplification of the structure and improves the heating efficiency.

[0007] In order to achieve the above-mentioned application purposes, the present application adopts the following technical solutions:

[0008] A washing device of a dishwasher, comprising:

[0009] The motor has a motor shell, a rotating shaft coaxially arranged with the motor shell;

[0010] The washing pump has a washing impeller fixed on the rotating shaft;

[0011] The heating disc has a heating body, an inner bent part extending downward along the inner side of the heating body, and an outer bent part extending downward along the outer side of the heating body, the inner bent part, the heating body, and the outer bent part form a concave cavity, and a heating component is arranged in the concave cavity.

[0012] Further, the heating body is annular, and the heating body is arranged with a high inner side and a low outer side.

[0013] Further, a heating component for providing heat for the heating disc is attached to the lower end surface of the heating body.

[0014] Further, the inner bent part of the heating disc is sealingly fixed on the motor shell, and a first annular sealing gasket is arranged between the inner bent part and the motor shell.

[0015] Further, the outer bent part of the heating disc is sealingly fixed on the bottom wall of the inner tank of the dishwasher, and a second sealing gasket is arranged between the outer bent part and the inner tank.

[0016] Further, the motor shell has an annular upper end part, the inner bent part has an inner extension part extending downward along the inner side of the heating body, and an inner mounting edge extending inwardly and downwardly from the lower end of the inner extension part, and the inner mounting edge is located below the upper end part.

[0017] Further, the washing device further comprises an assembly fixing ring for fixing the heating disc and the motor shell, the assembly fixing ring is fixed on the motor shell, and the inner mounting edge is located between the upper end part and the assembly fixing ring.

[0018] Further, an outer cylinder is arranged to extend downward from the upper end part, and the assembly fixing ring is sleeved on the outer side of the outer cylinder.

[0019] Further, a plurality of first outer baffles are arranged on the outer cylinder in a circumferential direction, a plurality of first inner baffles are arranged on the assembly fixing ring, and after the assembly fixing ring is clamped and fixed, the first inner baffles are located above the first outer baffles.

[0020] Further, the distance between two adjacent first outer baffles is greater than the circumferential dimension of the first inner baffles, and the distance between two adjacent first inner baffles is greater than the circumferential dimension of the first outer baffles.

[0021] Further, the number of the first outer baffles arranged on the outer cylinder is the same as the number of the first inner baffles arranged on the assembly fixing ring.

[0022] Further, the assembly fixing ring is fixed on the outer cylinder by rotating clamping, and the axial dimension of the first inner baffles gradually increases in the direction of rotating clamping of the assembly fixing ring.

[0023] Further, the upper end surface of the first inner baffles is flush with the upper end surface of the assembly fixing ring.

[0024] Further, the lower end surface of the first inner baffles is downwardly inclined in the direction of rotating clamping of the assembly fixing ring.

[0025] Further, a positioning protrusion is arranged on the first outer baffle, and a positioning groove matched with the positioning protrusion is arranged on the first inner baffle, and after the assembly fixing ring is rotated into position, the positioning protrusion is located in the positioning groove.

[0026] Further, a stop rib extending upward along one end of the first outer baffle is arranged on the outer cylinder, and after the assembly fixing ring is rotated into position, the stop rib is stopped in front of the direction of rotating installation of the first inner baffle.

[0027] Further, an assembly hole matched with the outer diameter side of the heating disc is arranged on the bottom wall of the inner container, and the heating disc is sealingly fixed with the assembly hole.

[0028] Further, the outer bending part has an outer extension part extending downward along the outer side of the heating body, and an outer mounting rail extending outward along the lower end of the outer extension part, and the heating body extends into the assembly hole.

[0029] Further, the washing device further comprises an assembly bracket for fixing the heating disc and the assembly hole, and the assembly bracket is fixed at the assembly hole.

[0030] Further, a plurality of downwardly extending fixing claws are arranged on the bottom wall at the assembly hole, and a second outer stop rib extending outward and matched with the fixing claws is arranged on the assembly bracket, and the second outer stop rib is clamped with the fixing claws.

[0031] Further, the fixing claw has a downwardly extending supporting part and a stop claw part extending inward along the lower end of the supporting part, and the second outer stop rib is located above the stop claw part.

[0032] Further, the assembling bracket is fixed at the assembling hole by rotating clamping, the distance between two adjacent second outer blocking ribs is greater than the circumferential size of the fixing claw, and the distance between two adjacent fixing claws is greater than the circumferential size of the second outer blocking rib.

[0033] Further, the first sealing gasket has a ring groove-shaped sealing body with a radial opening, and the inner gasket is located in the sealing body.

[0034] Further, the sealing body has a sealing upper side located above the inner gasket, a sealing lower side located below the inner gasket, and a connecting part connecting the sealing upper side and the sealing lower side.

[0035] Further, at least one first annular sealing rib protruding upward is arranged on the sealing upper side.

[0036] Further, at least one second annular sealing rib protruding downward is arranged on the sealing lower side.

[0037] Further, the first sealing gasket further has a sealing extension part extending outward and upward along the outer side of the sealing upper side, and the sealing extension part is located between the inner extension part and the motor shell.

[0038] Based on the above-mentioned dish washing machine washing device, the application further provides a dish washing machine with the above-mentioned washing device, which is beneficial to the simplification of the structure and the improvement of the heating efficiency.

[0039] A dish washing machine comprises a box body, an inner container arranged in the box body, and the above-mentioned washing device arranged on the inner container.

[0040] Compared with the prior art, the application has the advantages and positive effects that: by arranging the heating disc sleeve outside the motor shell, during the dish washing process of the dish washing machine, the motor is started to drive the rotating shaft to rotate the washing impeller, and then the washing water in the washing pump cavity is pumped into the washing cavity by the washing impeller, since the heating disc sleeve is arranged outside the motor shell, the washing water entering the washing pump cavity must flow through the upper surface of the heating body, so that the washing water reaching the washing pump cavity is heated in the heating state, which is beneficial to improving the heating efficiency; by forming the concave cavity, the accommodation space of the heating component is formed, and the safety of the heating component is protected.

[0041] Other features and advantages of the application will become more apparent after reading the specific embodiments of the application in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

[0043] Figure 1 The structural schematic diagram of an embodiment of the washing device of the dishwasher provided by the present application;

[0044] Figure 2 The structural schematic diagram of an embodiment of the washing device of the dishwasher provided by the present application; Figure 1 The structural schematic diagram of an embodiment of the washing device of the dishwasher provided by the present application;

[0045] Figure 3 The structural schematic diagram of an embodiment of the washing device of the dishwasher provided by the present application; Figure 2 The structural schematic diagram of an embodiment of the washing device of the dishwasher provided by the present application;

[0046] Figure 4 The structural schematic diagram of an embodiment of the washing device of the dishwasher provided by the present application; Figure 3 The structural schematic diagram of an embodiment of the washing device of the dishwasher provided by the present application;

[0047] Figure 5 The structural schematic diagram of an embodiment of the washing device of the dishwasher provided by the present application; Figure 4 The structural schematic diagram of an embodiment of the washing device of the dishwasher provided by the present application;

[0048] Figure 6 The structural schematic diagram of an embodiment of the washing device of the dishwasher provided by the present application; Figure 1 The structural schematic diagram of an embodiment of the washing device of the dishwasher provided by the present application;

[0049] Figure 7 The structural schematic diagram of an embodiment of the washing device of the dishwasher provided by the present application; Figure 6 The structural schematic diagram of an embodiment of the washing device of the dishwasher provided by the present application;

[0050] Figure 8 The structural schematic diagram of an embodiment of the washing device of the dishwasher provided by the present application; Figure 7 The structural schematic diagram of an embodiment of the washing device of the dishwasher provided by the present application;

[0051] Figure 9 The structural schematic diagram of an embodiment of the washing device of the dishwasher provided by the present application; Figure 1 The structural schematic diagram of an embodiment of the washing device of the dishwasher provided by the present application;

[0052] Figure 10 The structural schematic diagram of an embodiment of the washing device of the dishwasher provided by the present application; Figure 9 The structural schematic diagram of an embodiment of the washing device of the dishwasher provided by the present application;

[0053] Figure 11 The structural schematic diagram of an embodiment of the washing device of the dishwasher provided by the present application; Figure 1 The structural schematic diagram of an embodiment of the washing device of the dishwasher provided by the present application;

[0054] Figure 12 The structural schematic diagram of an embodiment of the washing device of the dishwasher provided by the present application; Figure 11 The structural schematic diagram of an embodiment of the washing device of the dishwasher provided by the present application;

[0055] Figure 13 The structural schematic diagram of an embodiment of the washing device of the dishwasher provided by the present application; Figure 1 The structural schematic diagram of an embodiment of the washing device of the dishwasher provided by the present application;

[0056] Figure 14 For Figure 13 The schematic diagram of the middle partial amplification structure;

[0057] Figure 15 For Figure 1 The schematic diagram of the amplification structure with the assembled fixing ring;

[0058] Figure 16 For Figure 15 The schematic diagram of the amplification structure of the C area;

[0059] Figure 17 For Figure 1 The schematic diagram of the amplification structure with the assembled bracket;

[0060] Figure 18 For Figure 1 The schematic diagram of the amplification structure of the isolation filter structure;

[0061] Figure 19 For Figure 18 The schematic diagram of the front structure;

[0062] Figure 20 For Figure 1 The schematic diagram of the amplification structure of the first sealing pad;

[0063] Figure 21 For Figure 20 The schematic diagram of the cross-section partial amplification structure. DETAILED DESCRIPTION

[0064] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application.

[0065] In the description of the present application, it should be noted that the positions or location relationships indicated by the terms “up”, “down” and the like are based on the position relationship shown in the drawings, and the direction close to the motor shaft is “inner”, and vice versa is “outer”. The terms are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms “first”, “second”, “third” are only for the purpose of description, and cannot be understood as indicating or implying relative importance; the features limited by “first”, “second” can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of “multiple” is two or more, unless otherwise specifically limited.

[0066] In the present application, unless otherwise clearly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0067] Referring to Figures 1-21 , an embodiment of the washing device of the dishwasher provided in the present application, a washing device of a dishwasher, comprising: motor 10, washing pump 20, heating disc 30, motor 10 has motor shell 11, stator fixed on motor shell 11, rotatable rotor, fixedly arranged on the rotor, shaft 12, motor shell 11 and shaft 12 are coaxially arranged, shaft 12 is vertically arranged; washing pump 20 has washing impeller 21 fixed on the upper end of shaft 12, washing pump support 22 fixed on motor shell 11, washing pump cavity 23, the lower end of washing impeller 21 is located in washing pump cavity 23, washing impeller 21 is fixed on the upper end of shaft 12, and drainage impeller is fixed on the lower end of shaft 12; heating disc 30 is sleeved on the outside of motor shell 11, heating disc 30 has heating body 31, inner bending part 32 extending downward and inward along the inside of heating body 31, outer bending part 33 extending downward and outward along the outside of heating body 31, wherein the inner bending part 32, the heating body 31 and the outer bending part 33 surround to form a concave cavity 400, and the heating component 34 is located in the concave cavity 400; by forming the concave cavity 400, the setting space of the heating component 34 is formed; even if the connection between the inside or outside of the heating disc 30 seeps water, the seepage water droplets will not flow upward along the inner bending part 32 or the outer bending part 33 into the concave cavity 400, which is beneficial to protect the safety of the heating component 34; during the washing process of the dishwasher, the motor 10 is started, so that the shaft 12 drives the washing impeller 31 to rotate, and then the washing water in the washing pump cavity 23 is pumped into the washing cavity 100 by the washing impeller 21, because the heating disc 30 is annularly sleeved on the outside of the motor shell 11, so the washing water entering the washing pump cavity 23 must flow through the upper surface of the heating body 31, so that the washing water reaching the washing pump cavity 23 is heated in the heating state, which is beneficial to improve the heating efficiency. Preferably, the heating disc 30 is made of metal material, and the heating component 34 is a heating film attached to the lower end surface of the heating body 31, which is beneficial to heat transfer. The heating component 34 can be heating wire or heating film.

[0068] The heating disc 30 has a ring-shaped heating body 31, and the heating body 31 is arranged in a manner that the inner part is higher than the outer part. The washing water flows over the heating body 31, and the heating disc 30 is arranged on the outer side of the motor housing 11, so that the heating disc 30 serves as a component of the washing water path, which is beneficial to the simplification of the structure and avoids the setting in the water path causing the obstruction to the water flow. The heating body 31 is arranged in a manner that the inner part is higher than the outer part, and when the washing water flows from the outer side of the heating body 31 to the inner side in the radial direction, the washing water needs to climb up, so that the difficulty of the washing water backflow is increased, which causes the speed of the water flow through the heating body 31 to be slowed down, so that the time of the water flow through the heating body 31 is increased, which is beneficial to improving the heating efficiency of the heating disc 30 on the washing water, and the washing water will not be left on the heating body 31.

[0069] Referring to Figures 2-5 As shown in the drawings, only the base part of the inner container is shown, and the isolation filter structure 40 is arranged on the bottom wall 90 of the inner container, and the isolation filter structure 40 is also arranged on the bottom wall of the base. The isolation filter structure 40 is a ring-shaped structure, and the inner diameter side of the isolation filter structure 40 is assembled on the washing pump support 22. The space on the upper side of the isolation filter structure 40 in the inner container is the washing cavity 100, the space between the isolation filter structure 40 and the heating disc 30 is the heating cavity 200, and the space between the isolation filter structure 40 and the bottom wall 90 is the filter cavity 300. The filter cavity 300 and the heating cavity 200 are both ring-shaped cavities.

[0070] Referring to Figures 11-12 As shown in the drawings, for the structure of the heating disc 30,

[0071] For the inclination angle of the heating body 31 in the radial direction, if the inclination of the heating body 31 is too large, the climbing speed of the water flow through the heating disc 30 is too slow, which reduces the washing efficiency. However, if the inclination angle of the heating body 31 is too small, the heating efficiency cannot be improved. It is preferred that the included angle between the heating body 31 and the horizontal plane is 0°-10°, and more preferably, the included angle between the heating body 31 and the horizontal plane is 5°-6°.

[0072] Referring to Figures 5-8As shown, the assembly of the heating body 31 is sealed and fixed on the inner side of the heating disc 30 to the motor shell 11, and the outer side of the heating disc 30 is sealed and fixed to the bottom wall 90 of the inner container. The assembly hole 91 matched with the outer side of the heating disc 30 is arranged on the bottom wall 90, and the outer bending part 33 is sealed and fixed to the assembly hole 91. The motor shell 11 has an annular upper end part 111, and the outer side of the upper end part 111 is arranged flush with the inner side of the heating body 31, which is beneficial to the smooth flow of the water flow in the radial direction to the upper end part 111. Preferably, the upper end part 111 is arranged as an outer low inner high or horizontal arrangement, so as to keep the water flow continue to climb in the radial backflow direction or flow horizontally inward. Preferably, the included angle between the upper end part 111 and the horizontal plane is smaller than the included angle between the heating body 31 and the horizontal plane, which is beneficial to the water flow to flow back in the radial direction after reaching the upper end part 111. The heating disc 30 and the upper end part 111 of the motor shell 11 are components of the bottom wall 90.

[0073] For the fixation between the inner bending part 32 and the motor shell 11, in order to arrange the outer side of the upper end part 111 flush with the inner side of the heating body 31, the inner bending part 32 is arranged to have an inner extension part 321 extending downward along the inner side of the heating body 31, and an inner mounting edge 322 extending and bending inward along the lower end of the inner extension part 321. The inner mounting edge 322 is located below the upper end part 111. The heating disc 30 is installed from bottom to top, and the inner mounting edge 322 is pressed tightly below the upper end part 111. Preferably, the inner mounting edge 322 is arranged horizontally, which is beneficial to the stamping forming of the inner bending part 32, and is beneficial to the vertical pressing force of the inner mounting edge 322 after assembly and fixation, and is beneficial to the firmness after fixation.

[0074] In order to facilitate the operation of the fixation between the inner bending part 32 and the motor shell 11, the washing device further comprises an assembly and fixation ring 60 for fixing the heating disc 30 and the motor shell 11. The assembly and fixation ring 60 is rotatably clamped and fixed to the motor shell 10, and the inner mounting edge 322 is located between the upper end part 111 and the assembly and fixation ring 60. Through the detachable assembly and fixation of the assembly and fixation ring 60 and the motor shell 11, the inner mounting edge 322 is pressed between the assembly and fixation ring 60 and the upper end part 111, so that the heating disc 30 is fixed to the heating disc 30. Preferably, the assembly and fixation ring 60 is rotatably mounted to or detached from the motor shell 11, which is beneficial to the convenient and fast disassembly and assembly of the assembly and fixation ring 60, and realizes the quick assembly or disassembly of the inner bending part 32 and the motor shell 11.

[0075] Referring to Figure 1 , Figure 5 , Figures 13-16As shown, the assembly and fixing structure between the assembly fixing ring 60 and the motor shell 11 is illustrated, the outer cylinder 112 extending downward is arranged at the upper end 111, and the assembly fixing ring 60 is sleeved outside the outer cylinder 112; a plurality of first outer blocking ribs 113 are arranged at the circumference of the outer cylinder 112, and a plurality of first inner blocking ribs 61 are arranged on the assembly fixing ring 60; after the assembly fixing ring 60 is clamped and fixed, the first inner blocking rib 61 is located above the first outer blocking rib 113; so that the assembly fixing ring 60 is fixed on the motor shell 11, and the inner assembly 322 is pressed between the assembly fixing ring 60 and the upper end 111. Preferably, the number of the first outer blocking ribs 113 arranged on the outer cylinder 112 is the same as the number of the first inner blocking ribs 61 arranged on the assembly fixing ring 60.

[0076] In order to realize the clamping and matching of the first outer blocking rib 113 and the first inner blocking rib 61, it is necessary to assemble the assembly fixing ring 60 to the outer cylinder 112, and to make the first inner blocking rib 61 located on the upper side of the first outer blocking rib 113; it is necessary to arrange the distance between the two adjacent first outer blocking ribs 113 to be greater than the size of the first inner blocking rib 61 in the circumferential direction, and the distance between the two adjacent first inner blocking ribs 61 is greater than the size of the first outer blocking rib 113 in the circumferential direction, that is, after the assembly fixing ring 60 is sleeved on the outer cylinder 112, it is moved upward, and the first inner blocking rib 61 can pass between the two adjacent first outer blocking ribs 113; the gap between the two adjacent first inner blocking ribs 61 can also avoid the first outer blocking rib 113, or the first outer blocking rib 113 can relatively move downward between the two adjacent first inner blocking ribs 61; then rotate the assembly fixing ring 60, so that the first inner blocking rib 61 is located on the upper side of the first outer blocking rib 113, and the fixing between the inner bending part 32 and the motor shell 11 is completed.

[0077] Due to the sealing and fixing between the inner assembly 322 and the upper end 111, the main reliance is on the pressing force between the inner assembly 322 and the upper end 111; the assembly fixing ring 60 is clamped and fixed on the outer cylinder 112 by rotation, and the size of the first inner blocking rib 61 in the axial direction gradually increases in the direction of the rotation and clamping of the assembly fixing ring 60; specifically, the upper end surface of the first inner blocking rib 61 is flush with the upper end surface of the assembly fixing ring 60, and the lower end surface of the first inner blocking rib 61 is arranged downwardly inclined in the direction of the rotation and clamping of the assembly fixing ring 60. In the rotation process of the assembly fixing ring 60, the assembly fixing ring 60 gradually presses the inner assembly 322 upward, increases the pressure between the inner assembly 322 and the upper end 111, and is beneficial to increasing the sealing property.

[0078] To prevent the assembly of the fixing ring 60 from loosening and to be assembled in place, a positioning protrusion 114 is arranged on the first outer rib 113, and a positioning groove 62 matching the positioning protrusion 114 is arranged on the first inner rib 61. After the fixing ring 60 is rotated to be in place, the positioning protrusion 114 is located in the positioning groove 62, preventing the fixing ring 60 from loosening after being assembled in place, and preventing the fixing ring 60 from rotating after being rotated to be in place, which causes damage to the first outer rib 113 and the first inner rib 61. A stop rib 115 extending upward along one end of the first outer rib 113 is arranged on the outer cylinder 112. After the fixing ring 60 is rotated to be in place, the stop rib 115 is located in front of the rotating installation direction of the first inner rib 61, preventing the first inner rib 61 from moving in the installation direction, and ensuring that the fixing ring 60 is prevented from rotating to be in place. Preferably, the positioning protrusion 114 is arranged at the rear of the rotating installation direction of the first inner rib 61. When the first inner rib 61 starts to cooperate with the first outer rib 113, the front of the rotating installation direction of the first inner rib 61 cooperates with the first outer rib 113. Then, by rotating the fixing ring 60, the part of the first inner rib 61 cooperating with the first outer rib 113 increases, and finally, when the fixing ring 60 is to be installed in place, the positioning protrusion 114 is rotated to contact the first outer rib 113. This is beneficial to the rotation and clamping assembly of the fixing ring 60, and reduces the influence of the positioning protrusion 114 on the rotating installation.

[0079] Referring to Figure 5 、 Figures 20-21As shown, in order to ensure the sealing between the inner bend portion 32 and the motor shell 11, a first sealing gasket 50 is arranged between the inner bend portion 32 and the upper end portion 111 of the motor shell 11. The first sealing gasket 50 has a ring groove-shaped sealing body 51 with a radial opening, and the inner installation edge 322 is located in the sealing body 51, or the sealing body 51 covers the outer side of the inner installation edge 322. By arranging the inner installation edge 322 in the sealing body 51, the upper and lower parts of the inner installation edge 322 are provided with sealing components, which is beneficial to increase the sealing effect. Specifically, the sealing body 51 has a sealing upper side portion 511 located above the inner installation edge 322, a sealing lower side portion 512 located below the inner installation edge 322, and a connecting portion 513 connecting the sealing upper side portion 511 and the sealing lower side portion 512. The sealing lower side portion 512 is located between the inner installation edge 322 and the upper end portion 111 of the motor shell 11, and the sealing lower side portion 512 is located between the inner installation edge 322 and the assembly fixing ring 60. The sealing upper side portion 511 and the sealing lower side portion 512 are arranged in parallel, and the sealing body 51 has two layers of parallel sealing, which are located above and below the inner installation edge 322, respectively, which is beneficial to increase the sealing. At least one first annular sealing rib 513 protruding upward is arranged on the sealing upper side portion 511, and preferably two first annular sealing ribs 513 are arranged in a spaced sleeve manner on the sealing upper side portion 511, which increases the sealing. At least one second annular sealing rib 514 protruding downward is arranged on the sealing lower side portion 512, which increases the sealing. The first sealing gasket 50 also has a sealing extension 52 extending outward and upward along the outer side of the sealing upper side portion 511. The sealing extension 52 is located between the inner extension portion 321 and the motor shell 11, fills the gap between the inner extension portion 321 and the motor shell 11, avoids the accumulation of residual water in the gap, and plays a sealing role.

[0080] Referring to Figure 5 and Figure 17 As shown, for the fixation of the outer bend portion 33 and the assembly hole 91, the outer bend portion 33 has an outer extension portion 331 extending downward along the outer side of the heating body 31, and an outer installation edge 332 extending outward from the lower end of the outer extension portion 331. The heating body 31 extends into the assembly hole 91. The washing device further comprises an assembly bracket 70 for fixing the heating disc 30 and the assembly hole 91. The assembly bracket 70 is fixed at the assembly hole 91. By arranging the assembly bracket 70, the outer side of the heating disc 30 is fixed. By rotating the assembly bracket 70, the assembly bracket 70 is clamped and fixed on the assembly hole 91, which is beneficial to facilitate the assembly operation.

[0081] The assembly bracket 70 gives the outer bending part 33 an upward pressing force. A plurality of downward extending fixing claws 92 are arranged on the bottom wall at the assembly hole 91. A plurality of second outer blocking ribs 71 are arranged on the assembly bracket 70 and extend outward. The second outer blocking ribs 71 are matched and engaged with the fixing claws 92. The fixing claws 92 have downward extending supporting parts 921 and blocking claw parts 922 which are inwardly bent and extend along the lower ends of the supporting parts 921. The second outer blocking ribs 71 are above the blocking claw parts 922. The heating disc 30 is held by the assembly bracket 70, moves upward, and is engaged above the fixing claws 92 by rotating the assembly bracket 70. The plurality of fixing claws 92 and the plurality of second outer blocking ribs 71 are circumferentially arranged. Preferably, the number of the fixing claws 92 is the same as the number of the second outer blocking ribs 71. The assembly bracket 70 is fixed at the assembly hole 91 by rotation. The distance between two adjacent second outer blocking ribs 71 is greater than the circumferential dimension of the fixing claws 91. The distance between two adjacent fixing claws 92 is greater than the circumferential dimension of the second outer blocking ribs 71. That is, the assembly bracket 70 moves upward, and the second outer blocking ribs 71 can pass between two adjacent fixing claws 92. The gap between two adjacent second outer blocking ribs 71 can also avoid the fixing claws 92, or the fixing claws 92 can relatively move downward between two adjacent second outer blocking ribs 71. Then, the assembly bracket 70 is rotated, so that the second outer blocking ribs 71 are above the blocking claw parts 922 of the fixing claws 92, and the fixing between the outer bending part 33 and the assembly hole 91 is completed.

[0082] Referring to Figure 4 、 Figures 20-21As shown, the structure of the isolation filter structure 40 is illustrated, the isolation filter structure 40 comprises an annular planar filter screen 41, an annular isolation plate 42 located inside the planar filter screen 41, an inwardly extending portion 43 provided along the inner side of the isolation plate 42 and extending horizontally inwardly, and the inwardly extending portion 43 is fitted to the washing pump bracket 22 of the washing pump 20. The washing water path formed by the washing cavity 100, the filter cavity 300, the heating cavity 200 and the washing pump cavity 23, and the washing pump 20 is used to deliver the washing water in the washing pump cavity 23 to the washing cavity 100, the heating cavity 200 is arranged outside the washing pump cavity 23, the heating cavity 200 is circumferentially communicated with the washing pump cavity 23, and is used to heat the washing water flowing therethrough; the filter cavity 300 is arranged outside the heating cavity 200, the filter cavity 300 is circumferentially communicated with the heating cavity 200, and the filter cavity 300 and the heating cavity 200 are both annular cavities. By arranging the sleeved heating cavity 200 and filter cavity 300, and circumferential communication, it is beneficial to the backflow of the washing water after being sprayed from the washing pump cavity 23 to the washing cavity 100 during the washing process, and the backflow of the washing water reaches the washing pump cavity 23 after passing through the heating cavity, which is beneficial to increasing the heating efficiency. During the washing process of the dishwasher, the rotation of the washing impeller 21 causes the washing water in the washing pump cavity 23 to be pumped to the washing cavity 100 by the washing impeller 21, and then the washing water flows into the filter cavity 300, and under the action of the washing pump 20, the washing water in the filter cavity 300 flows from the inner diameter side of the filter cavity 300 to the outer diameter side of the heating cavity 200 in the circumferential direction, and then flows from the inner diameter side of the heating cavity 200 to the washing pump cavity 23 in the circumferential direction, forming a washing water path; wherein the annular backflow water path is formed from the filter cavity 300 to the washing pump cavity 23, and the washing water entering the washing pump cavity 23 must flow through the heating cavity 200, so that the washing water reaching the washing pump cavity 23 is heated in the heating state, which is beneficial to improving the heating efficiency.

[0083] The planar filter screen 41 for filtering the washing water is arranged between the filter cavity 300 and the washing cavity 100, the filter cavity 300 is located below the washing cavity 100, which is beneficial to the washing water in the washing cavity 100 flowing into the filter cavity 300 under the action of gravity; the isolation plate 42 is arranged between the heating cavity 200 and the washing cavity 100, the isolation plate 42 is used to isolate the heating cavity 200 and the washing cavity 100 in the up-down direction, and the heating cavity is located below the washing cavity 100; so that the washing water in the washing cavity 100 cannot directly flow into the heating cavity 200, the washing water in the washing cavity 100 flows into the filter cavity 300, and the washing water in the filter cavity 300 flows into the heating cavity 200 in the circumferential direction; it is ensured that the backflow of the washing water from the washing cavity 100 reaches the filter cavity 300 after being filtered, and it is ensured that the backflow of the washing water reaches the heating cavity 200.

[0084] The plane filter screen 41 is horizontally arranged, and the isolation plate 42 is arranged with a low outer part and a high inner part. Since the water flow path from the filter cavity 300 to the washing pump cavity 23 through the heating cavity 200 is annular and flows from the circumferential outer side to the inner side, the circumferential size in the flow direction becomes smaller and smaller. The isolation plate 42 is arranged with a low outer part and a high inner part, and the height of the isolation plate 42 increases in the direction close to the center, that is, the height of the isolation plate 42 increases in the direction radially inward, which is beneficial to ensure that the volume of the heating cavity 200 changes little in the radial direction and is beneficial to the smooth flow of the water flow. At the same time, since the isolation plate 42 is arranged with a low outer part and a high inner part, the washing water sprayed into the washing cavity 100 and then falling onto the isolation plate 42 can quickly flow to the plane filter screen 41 along the inclined surface, which is beneficial to the backflow of the washing water in the washing cavity 100 to the filter cavity 300. Moreover, the isolation plate 42 is arranged with a low outer part and a high inner part, which is beneficial to increase the structural strength of the isolation plate 42.

[0085] Since the isolation plate 42 and the heating body 31 are both arranged with an inner high part and an outer low part, preferably, the angle between the isolation plate 42 and the horizontal plane is greater than the angle between the heating body 31 and the horizontal plane, so that the distance between the heating body 31 and the isolation plate 42 increases in the direction radially inward, that is, the height of the heating cavity 200 increases in the direction radially inward, which is beneficial to the smooth flow of the water flow. Preferably, the angle between the isolation plate 42 and the horizontal plane is 10°-25°, and more preferably, the angle between the isolation plate 42 and the horizontal plane is 15°-20°.

[0086] Referring to Figures 9-10As shown, the inner side of the bottom surface of the filtering cavity 300 is provided with an upward and inward extending inclined transition part 93, a connecting part 94 extending inwardly and bending along the inclined transition part 93, and a mounting hole 91 in the inner side of the connecting part 94. The outer side of the heating disc 30 is sealingly fixed to the connecting part 94. By arranging the inclined transition part 93, the heating cavity 200 is higher than the filtering cavity 300, that is, the water flow from the inner diameter side of the filtering cavity 300 needs to flow upward through the inclined transition part 93 before reaching the filtering cavity 300, that is, only when the washing pump 20 is started, the washing water in the filtering cavity 300 flows inwardly into the heating cavity 200. In order to facilitate the washing water in the filtering cavity 300 to flow into the heating cavity 200 in the circumferential direction and in the radial direction, a plurality of communication flow channels are arranged between the filtering cavity 300 and the heating cavity 200 in the circumferential direction. The washing water in the filtering cavity 300 flows into the heating cavity 200 through the plurality of communication flow channels, which facilitates the radial flow of the water flow. Specifically, a plurality of spacing ribs 95 extending upward are arranged on the inclined transition part 93 and the connecting part 94. The spacing ribs 95 are arranged in the radial direction and are arranged in the circumferential direction. The spacing ribs 95 are used to form the communication flow channels. The communication flow channels are formed by two adjacent spacing ribs 95, the top isolation plate, and the lower inclined transition part 93 and the connecting part 94. The outer side of the spacing rib 95 extends to the washing cavity 300 to form an extended flow guide part 951, which is used to guide the water flow in the filtering cavity 300 to flow into the communication flow channel. The upper end surface of the spacing rib 95 has the same inclination angle as the isolation plate 42, and the spacing rib 95 is used to support the isolation plate 42.

[0087] A water outlet is arranged on the bottom surface of the washing cavity 300. A cup-shaped filter screen 80 is arranged at the water outlet. The water outlet is communicated with the drainage pump cavity 19. A water flow groove 301 connected with the water outlet is arranged on the bottom surface of the washing cavity 300. The depth of the water flow groove 301 gradually increases in the direction close to the water outlet. This facilitates the washing water in the water flow groove 301 to flow to the water outlet during drainage, so as to avoid the washing water remaining in the washing cavity 300.

[0088] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or equivalently replace some technical features. The modification or replacement does not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solutions claimed by the present application.

Claims

1. A washing device of a dishwasher, characterized by, The washing device comprises: a motor having a motor shell and a rotating shaft coaxially arranged with the motor shell; a heating disc sleeved outside the motor shell, the heating disc having a heating body, an inner bent portion extending downward along the inner side of the heating body, and an outer bent portion extending downward along the outer side of the heating body, the inner bent portion, the heating body, and the outer bent portion surrounding a concave cavity in which a heating component is arranged; a mounting fixing ring for fixing the heating disc and the motor shell, the mounting fixing ring being fixed on the motor shell; the heating body is arranged in an inner-high and outer-low inclined manner, and washing water flows through the upper surface of the heating body and flows radially inward from the outer side of the heating body; the inner bent portion of the heating disc is sealingly fixed with the motor shell, and the outer bent portion of the heating disc is sealingly fixed with the bottom wall of the inner tank of the dishwasher.

2. The washing apparatus according to claim 1, characterized by The heating body is arranged in a ring shape.

3. The washing apparatus according to claim 1, wherein The motor shell has an annular upper end portion, the inner bent portion has an inner extension portion extending downward along the inner side of the heating body, and an inner mounting edge extending inwardly and bendingly from the lower end of the inner extension portion, the inner mounting edge being located below the upper end portion.

4. The washing apparatus according to claim 3, wherein The inner mounting edge of the washing device is located between the upper end portion and the mounting fixing ring.

5. The washing apparatus according to claim 1, wherein A mounting hole matching the outer diameter side of the heating disc is formed in the bottom wall of the inner tank, and the heating disc is sealingly fixed with the mounting hole.

6. The washing apparatus according to claim 5, wherein The outer bent portion has an outer extension portion extending downward along the outer side of the heating body, and an outer mounting edge extending outwardly and bendingly from the lower end of the outer extension portion, the heating body extending into the mounting hole, and the outer mounting edge being located below the edge of the mounting hole.

7. The washing apparatus according to claim 5, wherein The washing device further comprises a mounting bracket for fixing the heating disc and the mounting hole, the mounting bracket being rotationally fixed to the mounting hole.

8. The washing apparatus according to any one of claims 1 to 7, characterized by The included angle between the heating body and the horizontal plane is 0°-10°.

9. A dishwasher, characterized in that The washing device comprises a box body, an inner tank arranged in the box body, and the washing device of any one of claims 1-8 arranged on the inner tank.

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