Dishwasher

Abstract

The application discloses a dishwasher, which comprises a shell, an inner container, a partition and an upper cavity waterway system. The inner container is arranged in the shell and has a washing inner cavity. The partition is assembled in the washing inner cavity to divide the washing inner cavity into an upper washing cavity and a lower washing cavity. The upper cavity waterway system is suitable for supplying and draining water to the upper washing cavity. The upper cavity waterway system comprises an upper cavity washing pump and an upper cavity draining pump. One of the upper cavity washing pump and the upper cavity draining pump is arranged at the rear side of the inner container, or one of the upper cavity washing pump and the upper cavity draining pump is arranged at the rear side of the inner container, and the other one of the upper cavity washing pump and the upper cavity draining pump is arranged at one side of the left and right sides of the inner container and between the shell and the inner container. The technical scheme can meet the diversified washing requirements of users.

Description

Technical Field

[0001] This application relates to the field of kitchen appliance technology, and in particular to a dishwasher. Background Technology

[0002] In related technologies, most existing dishwashers have only one washing chamber with a fixed volume, which cannot be flexibly adjusted according to the actual number of dishes the user has. When the number of dishes to be washed is small, this results in wasted space, failing to fully utilize the dishwasher's efficiency, and may also lead to poor cleaning results due to the dishes being too scattered. This situation makes dishwashers unable to meet users' compatible washing needs for different numbers of dishes, resulting in a poor user experience and failing to truly meet users' needs for convenient, efficient, and personalized dishwashing. Summary of the Invention

[0003] This application provides a dishwasher that can meet various washing needs of users by dividing the washing chamber into upper and lower sections.

[0004] This application provides a dishwasher, which includes a shell, an inner tub, a separator, and an upper chamber water system. The inner tub is disposed within the shell and has a washing cavity. The separator is fitted into the washing cavity to divide it into an upper washing cavity and a lower washing cavity. The upper chamber water system is suitable for supplying and draining water to the upper washing cavity. The upper chamber water system includes an upper chamber washing pump and an upper chamber drain pump. Both the upper chamber washing pump and the upper chamber drain pump are located on the rear side of the inner tub. Alternatively, one of the upper chamber washing pump and the upper chamber drain pump is located on the rear side of the inner tub, and the other of the upper chamber washing pump and the upper chamber drain pump is located on one side of the left or right side of the inner tub, between the shell and the inner tub.

[0005] In some embodiments, the inner liner includes a back panel, and at least one of the upper chamber washing pump and the upper chamber drain pump is disposed between the portion of the back panel corresponding to the lower washing chamber and the outer shell.

[0006] In some embodiments, the inner liner further includes a receiving portion connected to the back panel, the receiving portion covering the rear side of the back panel and having a first mounting space, wherein the upper chamber washing pump and the upper chamber drain pump are both located within the first mounting space.

[0007] In some embodiments, the first installation space extends along the left-right direction of the inner liner, and the upper chamber washing pump and the upper chamber drain pump are arranged in the left-right direction.

[0008] In some embodiments, a portion of the structure on the rear side of the inner liner is recessed into the lower washing chamber, such that a portion of the inner liner, the lower wall of the separator, and the outer shell together define a second installation space;

[0009] One of the upper chamber washing pump and the upper chamber drain pump is located within the second installation space, and the other of the upper chamber washing pump and the upper chamber drain pump is located on one side of the left and right sides of the inner tank.

[0010] In some embodiments, the upper chamber water system further includes an upper chamber water cup, and the inlet sides of both the upper chamber washing pump and the upper chamber drain pump are connected to the upper chamber water cup;

[0011] The upper chamber water cup is connected to the partition and is located in the second installation space. The partition is also provided with an upward-facing slot, through which the upper chamber water cup communicates with the upper washing chamber.

[0012] In some embodiments, the separator is further provided with a flow guide slope, which is formed on the upper wall of the separator and is inclined toward the slot.

[0013] In some embodiments, the upper cavity water system further includes:

[0014] The upper chamber drain pipe is connected to the outlet side of the upper chamber drain pump and is used to discharge the washing water in the upper washing chamber. The upper chamber drain pipe includes a first drain section, a bend section and a second drain section connected in sequence. The first drain section is connected to the outlet side of the upper chamber drain pump, and the highest position of the center line of the bend section is higher than the upper surface of the bottom wall of the upper washing chamber formed by the partition.

[0015] In some embodiments, a cup drain pipe is also included that connects the upper chamber cup and the inlet side of the upper chamber drain pump. The second mounting space extends along the left-right direction of the inner liner and has a first passage on one side of the inner liner in the left-right direction. A portion of the cup drain pipe extends through the first passage to the side of the inner liner in the left-right direction to connect with the inlet side of the upper chamber drain pump.

[0016] In some embodiments, an upper cavity water supply pipe is also included, which connects to the upper cavity water cup. The second installation space has a second opening on the other side of the inner liner in the left-right direction, and the upper cavity water supply pipe passes through the second opening.

[0017] In some embodiments, the inner liner includes an upper shell assembly and a lower shell assembly, the partition being inserted into the upper shell assembly and cooperating to define the upper washing chamber and / or the partition being inserted into the lower shell assembly and cooperating to define the lower washing chamber.

[0018] In some embodiments, a first insertion portion is provided on the side wall of the upper shell assembly, and a first slot for inserting the first insertion portion is provided on the separator, the first slot comprising:

[0019] The first inner sidewall is located on the side closest to the upper shell assembly; and

[0020] The first outer sidewall is located on the side away from the upper shell assembly and is disposed opposite to the first inner sidewall. The height of the first inner sidewall is smaller than the height of the first outer sidewall.

[0021] In some embodiments, a lower cavity water system and a base are also included. The base is connected to the bottom of the outer casing and located below the chassis of the inner liner. The lower cavity water system is adapted to supply and drain water to the lower washing chamber and is located between the base and the chassis.

[0022] In some embodiments, an upper chamber spraying device is provided in the upper washing chamber, and the upper chamber spraying device is disposed on the partition and communicates with the upper chamber water system;

[0023] And / or, a lower chamber spray device is provided in the lower washing chamber, the lower chamber spray device is mounted on the chassis and is connected to the lower chamber water system pipeline.

[0024] The dishwasher based on this application embodiment has an inner tub located within the outer shell and includes a washing cavity. Tableware can be stored in the washing cavity and cleaned, sterilized, and dried. A separator is fitted into the washing cavity to divide it into an upper washing cavity and a lower washing cavity. By providing relatively independent upper and lower washing cavities, the washing needs of different quantities of tableware can be better met. When a user has a large number of tableware to wash, both the upper and lower washing cavities can be used simultaneously, increasing the total washing space and improving space utilization. This eliminates the limitation of a single large-capacity washing cavity, thus satisfying diverse user needs.

[0025] Furthermore, the upper chamber water system includes an upper chamber washing pump and an upper chamber drain pump. Both the upper chamber washing pump and the upper chamber drain pump are located at the rear of the inner tub, or one of the upper chamber washing pump and the other is located on one side of the inner tub, between the outer shell and the inner tub. This technical solution centralizes the upper chamber water system between the outer shell and the inner tub, and offers multiple options for the positions of the upper chamber washing pump and the upper chamber drain pump. This makes the placement of the upper chamber washing pump and the upper chamber drain pump more flexible, fully utilizing the space between the outer shell and the inner tub. It avoids the extra space occupied by the dispersed components of the upper chamber water system, reduces pipe crossings and mutual interference between components, and improves the stability of system operation. This design makes the overall structure of the dishwasher more compact, helping to reduce the size of the equipment and meet the diverse washing needs of users. This arrangement also facilitates individual disassembly and maintenance. If a component malfunctions, it can be quickly located and replaced without disassembling the entire water system. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of a dishwasher according to an embodiment of this application;

[0028] Figure 2 for Figure 1 The diagram shows an exploded view of the dishwasher.

[0029] Figure 3 for Figure 1 The diagram shows a structural schematic of one embodiment of the dishwasher.

[0030] Figure 4 for Figure 3 The diagram shown is a structural schematic of the dishwasher after the housing section has been removed.

[0031] Figure 5 This is a schematic diagram of the chassis and lower water system of the dishwasher of this application.

[0032] Figure 6 for Figure 1 A schematic diagram of another embodiment of the dishwasher is shown in the figure;

[0033] Figure 7 for Figure 6The diagram shows an enlarged cross-sectional view of a portion of the dishwasher structure.

[0034] Explanation of icon numbers:

[0035] 1. Dishwasher; 10. Inner tub; 101. First installation space; 102. Second installation space; 102a. First passageway; 102b. Second passageway; 11. Upper shell assembly; 110. Upper washing chamber; 12. Lower shell assembly; 121. Lower washing chamber; 13. Rear panel; 131. Upper back panel; 132. Lower back panel; 14. Receiving section; 20. Divider; 21. Slot; 30. Upper chamber water system; 31. Upper chamber washing pump; 32. Upper chamber drain pump; 34. Connecting pipe; 341. Pump inlet pipe; 342. Pump outlet pipe; 35. Upper chamber water cup; 36. Upper chamber drain pipe; 361. First drain section; 362. Bend section; 363. Second drain section; 37. Water cup drain pipe; 40. Lower chamber water system; 50. Chassis; 60. Upper chamber spray device; 70. Lower chamber spray device.

[0036] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0038] Where the following description relates to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0039] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0041] With the continuous progress of society, people are becoming increasingly intelligent with kitchen appliances. Dishwashers are favored by many because of their good cleaning effect, multiple disinfection functions, and time and labor saving. They can reduce people's labor burden in modern life.

[0042] This application proposes a dishwasher that effectively removes food residue from the surface of tableware (bowls, plates, etc.), disinfects and sterilizes the tableware during the washing process, and dries the tableware after washing and sterilization. The disinfection and sterilization process involves adding a cleaning solution to the water used to clean the tableware, and controlling the internal environment of the dishwasher (including the water temperature of the cleaning solution) at approximately 70℃ to 85℃. At this temperature, the activity of common pathogenic microorganisms such as Escherichia coli and Staphylococcus aureus is inhibited or even killed, thus ensuring the hygiene of the tableware. The dishwasher uses methods such as heat exchange drying or hot air drying, effectively preventing the tableware from growing bacteria and developing odors due to moisture.

[0043] In related technologies, dishwashers are equipped with only one washing chamber, and the space of the washing chamber is fixed, which makes it impossible to flexibly adjust according to the actual number of dishes the user has. For example, when the user needs to wash a small number of dishes, some space will not be used, and water during the washing process will still spray onto the empty areas where no dishes are placed, which not only wastes space but also fails to fully utilize the dishwasher's efficiency.

[0044] Furthermore, when the washing chamber is divided into two, three, or more sub-chambers to meet users' washing requirements in various scenarios, each sub-chamber needs to be equipped with a separate water system to better control the water flow in each sub-chamber. In this case, multiple water systems are carried on the dishwasher, which will result in the dishwasher occupying a large space and having a bulky structure, making it unable to meet the different usage needs of users.

[0045] To resolve the above issues, please refer to [link / reference]. Figures 1 to 4 This application proposes a dishwasher 1. In the embodiments of this application, the dishwasher 1 includes a shell, an inner liner 10, a separator 20, and an upper cavity water system 30.

[0046] The inner liner 10 is located inside the outer shell and has a washing cavity, where tableware can be stored and cleaned, sterilized, and dried. A divider 20 is fitted into the washing cavity to divide it into an upper washing cavity 110 and a lower washing cavity 121. By providing relatively independent upper and lower washing cavities 110 and 121, the washing needs of different quantities of tableware can be better met. When a user has a large number of tableware to wash, both the upper and lower washing cavities 110 and 121 can be used simultaneously, increasing the total washing space and improving space utilization. This eliminates the limitation of a single large-capacity washing cavity, thus satisfying diverse user needs.

[0047] It should be noted that the size of the upper washing chamber 110 may differ from that of the lower washing chamber 121. For example, if the upper washing chamber 110 is smaller than the lower washing chamber 121, the types of tableware placed in the upper washing chamber 110 will be different from those in the lower washing chamber 121, allowing for a more compact arrangement of tableware. Alternatively, the upper washing chamber 110 may be the same size as the lower washing chamber 121. When the number of tableware is small, the user can use only one washing chamber. This avoids the waste of space that would occur when a single large-capacity washing chamber is used to wash a small number of tableware. This allows for more rational use of the space in the dishwasher 1, meeting the user's needs in scenarios with different amounts of tableware and maximizing the efficiency of the dishwasher 1.

[0048] On the other hand, the independent upper washing chamber 110 and lower washing chamber 121 make the washing process clearer. During the washing process, the two washing chambers can work in parallel, shortening the overall washing time. Moreover, when one washing chamber malfunctions or requires maintenance, the other washing chamber can still be used normally, without affecting the user's daily dishwashing needs.

[0049] In this embodiment, the inner shell 10 includes an upper shell assembly 11 and a lower shell assembly 12. The upper shell assembly 11 may have an upper top wall, an upper back wall, and upper side walls. Two upper side walls are configured, arranged opposite each other and vertically connected to the upper top wall to form a U-shaped workpiece. The upper top wall can be integrally formed with the two upper side walls, and the upper back wall can be integrally formed with the upper top wall and fixedly connected to the upper side walls. This reduces the number of connection points between the workpieces, improves continuity, and increases the overall structural strength of the upper shell assembly 11. During long-term use of the dishwasher 1, it can better withstand the pressure of internal water and external forces such as possible collisions, reducing the risk of breakage, deformation, and other damage. It also helps ensure the sealing of the upper shell assembly 11, effectively preventing water leakage from the joints, thereby improving the reliability and service life of the inner shell 10 and the dishwasher 1, and reducing malfunctions and maintenance costs caused by water leakage. Simultaneously, the one-piece molding process simplifies the production process, improves production efficiency and processing accuracy, and reduces labor and material costs during production. In addition, the surface of the one-piece molded upper shell assembly 11 is smoother, reducing the gaps between the seams. During the cleaning of the inner tub 10, food residue is less likely to accumulate in the gaps, which not only reduces the difficulty of cleaning but also prevents the risk of bacteria and mold growth in the gaps, thereby ensuring that the dishwasher 1 and the cleaned tableware are more hygienic.

[0050] In addition to the methods described above, the upper back wall can also be integrally formed with one of the upper side walls and fixedly connected to the upper top wall. This also ensures the overall structural strength and stability of the upper shell assembly 11 and offers advantages in manufacturing processes and costs. It should be noted that the upper top wall is fixedly connected to both upper side walls via the upper back wall. This connection should be understood as the upper back wall, upper top wall, and two upper side walls being individually formed workpieces. This facilitates precise machining and quality control of each individual workpiece and makes the manufacturing and assembly processes more flexible. During assembly, adjacent upper back walls, upper top walls, and two upper side walls are first interlocked and then welded or riveted, followed by sealing with adhesive. In actual production processes, considering factors such as production difficulty, manufacturing requirements, and production costs, a combination of splicing assembly and integral forming is used in production.

[0051] Correspondingly, the lower shell assembly 12 may also include a lower bottom wall, a lower top wall, lower side walls, and a lower back wall. Two lower side walls are configured, positioned opposite each other and vertically connected to the lower top wall. The lower top wall is positioned opposite the lower bottom wall, and the lower top wall is integrally formed with the two lower side walls. Both upper side walls are connected to the lower bottom wall, forming a U-shaped workpiece. The lower back wall is integrally formed with the upper top wall and fixed to the lower bottom wall and the two lower side walls. Alternatively, the lower back wall may also be integrally formed with one of the lower side walls and fixed to the lower top wall and the lower bottom wall. This also ensures the overall structural strength and stability of the lower shell assembly 12. During assembly, the lower back wall, lower top wall, lower bottom wall, and adjacent lower side walls are first interlocked and then welded, riveted, or sealed with adhesive. This application does not impose any restrictions on this.

[0052] In summary, the U-shaped upper shell assembly 11 is stacked and installed on top of the U-shaped lower shell assembly 12, allowing the upper shell assembly 11 and the lower shell assembly 12 to be processed independently during production. Subsequently, only the upper shell assembly 11 and the lower shell assembly 12 need to be assembled to form the upper washing chamber 110 and the lower washing chamber 121, thus meeting different user needs. This stacking installation method is relatively simple, effectively avoiding complex internal structure assembly, reducing assembly steps and difficulty, and improving production convenience and efficiency. This solves the problem of cumbersome assembly caused by the complex overall structure of existing split-chamber dishwashers 1, and the simple overall structure also helps reduce manufacturing costs.

[0053] It should be noted that when the dishwasher 1 is positioned so that the door faces the user, the front-to-back direction of the inner tub 10 of the dishwasher 1 described in this application corresponds to the user's facing direction, and the left and right sides of the inner tub 10 of the dishwasher 1 correspond to the user's left and right sides. One of the two upper sidewalls is defined as the upper left sidewall, and the other as the upper right sidewall. Similarly, one of the two lower sidewalls is defined as the lower left sidewall, and the other as the lower right sidewall. The upper left sidewall and the lower left sidewall are coplanar, and the upper right sidewall and the lower right sidewall are coplanar. Coplanarity here means being on the same plane; specifically, in the vertical direction, the upper left sidewall and the lower left sidewall are on the same plane, and the upper right sidewall and the lower right sidewall are on the same plane.

[0054] This design not only allows the upper shell assembly 11 and the lower shell assembly 12 to better support each other at the connection point, enhancing the stability and robustness of the entire inner tank 10 of the dishwasher 1 and reducing the possibility of deformation or damage during washing due to vibration or other reasons, but also facilitates the alignment and connection of the upper shell assembly 11 and the lower shell assembly 12 during assembly, reducing assembly difficulty and precision requirements, and improving assembly efficiency. Furthermore, it makes the side lines of the dishwasher 1 smoother and neater, improving the overall aesthetics and meeting users' aesthetic requirements for product appearance design.

[0055] In addition to dividing the washing cavity into relatively independent upper washing cavity 110 and lower washing cavity 121 by the upper top wall of the upper shell assembly 11 or the lower top wall of the lower shell assembly 12, in one embodiment of this application, the separator 20 is inserted into the upper shell assembly 11 and the two cooperate to define the upper washing cavity 110, and the separator 20 is inserted into the lower shell assembly 12 and the two cooperate to define the lower washing cavity 121. In this case, the upper surface of the separator 20 is formed as the wall surface of the upper bottom wall of the upper shell assembly 11, and the lower surface of the separator 20 is formed as the lower top wall of the lower shell assembly 12. The upper shell assembly 11 and the lower shell assembly 12 are respectively inserted into the separator 20 to divide the washing cavity into mutually independent upper washing cavity 110 and lower washing cavity 121. This arrangement simplifies the assembly process, reduces the difficulty of assembly and the skill requirements of workers, increases the assembly speed, and reduces assembly time and labor costs. During assembly or later maintenance and replacement, the upper shell assembly 11 or lower shell assembly 12 can be separated from the separator 20 more easily, reducing the difficulty of disassembly and maintenance, thereby reducing assembly and maintenance costs.

[0056] In one embodiment of this application, please refer to Figures 3 to 5 The dishwasher 1 also includes a lower chamber water system 40 and a base. The base is connected to the bottom of the outer casing and located below the chassis 50 of the inner tub 10. The lower chamber water system 40 is used for water supply and drainage to the lower washing chamber 121. The independent water system for the upper and lower chambers allows for independent washing of the upper and lower chambers. Users can choose to operate only the upper or lower chamber during the washing process as needed, which saves water and energy. It also allows for flexible selection based on the quantity and type of tableware. Of course, the two washing chambers can also work in parallel, shortening the overall washing time. Moreover, if one washing chamber malfunctions or requires maintenance, the other washing chamber can still be used normally, without affecting the user's daily tableware washing needs.

[0057] The lower chamber water system 40 is located between the base and the chassis 50. The space between the base and the chassis 50 is usually quite compact. Placing the lower chamber water system 40 here can make full use of the space, avoid occupying other areas, effectively utilize the space at the bottom of the dishwasher 1, and improve space utilization. Since the lower washing chamber 121 is located above the chassis 50, the lower chamber water system 40 is close to the chassis 50, which can shorten the length of the lower chamber water supply and drainage pipes, improve water supply efficiency and reduce energy loss, achieve efficient water supply and drainage, and also facilitate the maintenance and repair of the lower chamber water system 40.

[0058] The upper cavity water system 30 includes an upper cavity washing pump 31 and an upper cavity drain pump 32. Both the upper cavity washing pump 31 and the upper cavity drain pump 32 are located on the rear side of the inner tank 10. Alternatively, one of the upper cavity washing pump 31 and the upper cavity drain pump 32 may be located on the rear side of the inner tank 10, while the other may be located on one side of the inner tank 10, between the outer shell and the inner tank 10. This technical solution concentrates the upper cavity water system 30 between the outer shell and the inner tank 10, and offers multiple options for the positions of the upper cavity washing pump 31 and the upper cavity drain pump 32. This allows for greater flexibility in the placement of the upper cavity washing pump 31 and the upper cavity drain pump 32, fully utilizing the space between the outer shell and the inner tank 10. It avoids the additional space occupied by the dispersed components of the upper cavity water system 30, reduces pipe crossings and mutual interference between components, and improves the stability of system operation. This design makes the dishwasher 1 more compact, helping to reduce the size of the appliance and making it suitable for the size requirements of modern kitchens, while also meeting the diverse washing needs of users. This arrangement also facilitates individual disassembly and repair; if a component malfunctions, it can be quickly located and replaced without disassembling the entire water system.

[0059] In some embodiments, such as Figure 3 and Figure 4 As shown, the inner liner 10 includes a back panel 13, and at least one of the upper chamber washing pump 31 and the upper chamber drain pump 32 is disposed between the portion of the back panel 13 corresponding to the lower washing chamber 121 and the outer shell. The inner liner 10 also includes a receiving portion 14 connected to the back panel 13, which covers the rear side of the back panel 13 and has a first mounting space 101, within which both the upper chamber washing pump 31 and the upper chamber drain pump 32 are located. This configuration eliminates the need for further processing of the upper shell assembly 11 or the lower shell assembly 12 during manufacturing to create positions suitable for the installation of the upper chamber washing pump 31 and the upper chamber drain pump 32. This ensures the integrity of the upper shell assembly 11 and the lower shell assembly 12, improves structural strength, simplifies production steps, and reduces costs. The first installation space 101 extends along the left and right direction of the inner tank 10. The upper chamber washing pump 31 and the upper chamber drain pump 32 are arranged along the left and right direction. This can utilize the extension of the first installation space 101 to avoid the upper chamber washing pump 31 and the upper chamber drain pump 32 being stacked between the inner tank 10 and the outer shell, and also avoid occupying the space of the washing cavity. This meets the diverse washing needs of users and adapts to the external structure of the inner tank 10, avoiding an overly abrupt shape.

[0060] Specifically, the receiving part 14 can be a separately manufactured part, fixedly connected to the back wall of the back panel 13 by means of screwing, plugging, or bonding. A first installation space 101 is formed between the receiving part 14 and the back panel 13 for housing the upper chamber washing pump 31 and the upper chamber drain pump 32. During disassembly and maintenance, the receiving part 14 can be disassembled to expose the upper chamber washing pump 31 and the upper chamber drain pump 32, facilitating centralized maintenance of the upper chamber washing pump 31 and the upper chamber drain pump 32 and reducing maintenance costs. Of course, the receiving part 14 can also be integrally formed with the back panel 13, thereby further increasing the structural strength. The receiving part 14 can isolate the vibration generated by the upper chamber washing pump 31 and the upper chamber drain pump 32 during operation, reducing the impact of vibration on other components and reducing noise and wear.

[0061] In other embodiments, please refer to Figures 5 to 6 The rear portion of the inner liner 10 is recessed into the downward washing chamber 121, so that a portion of the inner liner 10, the lower wall of the separator 20, and the outer shell together define the second installation space 102. One of the upper chamber washing pump 31 and the upper chamber drain pump 32 is located within the second installation space 102, and the other of the upper chamber washing pump 31 and the upper chamber drain pump 32 is located on one side of the inner liner 10. This allows the upper chamber washing pump 31 and the upper chamber drain pump 32 to be distributed on different outer peripheral sides of the inner liner 10, avoiding structural accumulation caused by placing them on the same outer peripheral side and improving space utilization.

[0062] It should be noted that in the structure in which a second installation space 102 is formed in part of the inner liner 10, the back panel 13 may include an upper back panel 131 and a lower back panel 132 that are separated vertically. The upper back panel 131 is connected to the rear side of the upper back wall, and the lower back panel 132 is connected to the rear side of the lower back wall to provide structural support for the inner liner 10 on the rear side and ensure structural strength. Thus, the part of the second installation space 102 corresponding to the lower washing chamber 121 may be formed by the partial structure of the two lower side walls and the partial structure of the lower rear wall, and is located between the upper back panel 131 and the lower back panel 132. Furthermore, the upper chamber washing pump 31 and the upper chamber drain pump 32 are installed in the concave space formed by the structure of the inner tank 10 itself. The installation space formed by the concave structure, the partition 20 and the outer shell provides stable support for the components, reduces the vibration and displacement of the components during operation, and improves the structural stability of the entire dishwasher 1. It not only saves space, but also makes the internal structure more compact, improving the overall space utilization of the dishwasher 1. The concave structure makes the installation of the components more concealed, reduces the occupation of the internal washing space, thereby increasing the space for placing tableware and improving the practicality of the dishwasher 1.

[0063] Compared to placing the upper chamber water system 30 and the lower chamber water system 40 together between the base and the chassis 50, this arrangement allows the upper chamber water system 30 to be positioned closer to the upper washing chamber 110, shortening the length of the water supply and drainage pipes, reducing water flow resistance, and enabling water to be pumped in or out more quickly. This shortens washing and drainage time, improves water supply and drainage efficiency, and allows for faster drainage of wastewater through gravity, preventing wastewater retention, reducing the possibility of secondary pollution, and thus improving washing efficiency to better meet the diverse washing needs of users.

[0064] The following description describes the structure of the second installation space 102, which is recessed into the washing cavity 121 on the rear side of the inner liner 10, so that the lower wall of the inner liner 10, the partition 20 and the outer shell together define the structure.

[0065] In some embodiments, the upper chamber water system 30 further includes an upper chamber water cup 35. The inlet sides of the upper chamber washing pump 31 and the upper chamber drain pump 32 are both connected to the upper chamber water cup 35. The upper chamber water cup 35 is connected to the partition 20 and located within the second installation space 102. The partition 20 also has an upward-facing slot 21. The upper chamber water cup 35 communicates with the upper washing chamber 110 through the slot 21. The slot 21 is used to output the wastewater produced by the upper washing chamber 110 to the outside of the upper washing chamber 110. That is, the wastewater after washing the dishes can be collected in the upper chamber water cup 35 through the slot 21 and discharged. It is understood that a filter element (such as a filter screen, filter cover, etc.) can also be installed at the slot 21. On the one hand, during the washing process, various impurities such as food residue, grease, and debris will fall into the washing water. The filter element can effectively intercept these impurities and prevent them from clogging the pipes or entering other parts of the dishwasher 1 with the wastewater discharge. On the other hand, the filter can separate impurities generated during the washing process from the wash water in a timely manner, keeping the recycled wash water relatively clean. Clean wash water can better exert the detergent's effect, improve the washing effect, prevent impurities from re-adhering to the tableware, and ensure that the tableware is thoroughly cleaned.

[0066] In some embodiments, a first insertion portion is provided on the side wall of the upper shell assembly 11, and a first slot for inserting the first insertion portion is provided on the separator 20. The first slot opens upward to cooperate with the first insertion portion. The first slot includes a first inner side wall and a first outer side wall. The first inner side wall is located on the side closer to the upper shell assembly 11, and the first outer side wall is located on the side away from the upper shell assembly 11 and is disposed opposite to the first inner side wall.

[0067] Correspondingly, the separator 20 is also provided with a downward-opening second slot, and the lower shell assembly 12 is provided with a second insertion part. The first insertion part can be provided on the upper back wall or the upper side wall, and the second insertion part can be provided on the lower back wall or the lower side wall. During assembly, the first insertion part is inserted into the first slot, and the upper shell assembly 11 and the separator 20 can form an upper washing chamber 110. The second insertion part is inserted into the second slot, and the lower shell assembly 12 and the separator 20 form a lower washing chamber 121. This makes the upper washing chamber 110 and the lower washing chamber 121 relatively independent, which can better meet the cleaning needs of different numbers of tableware, is suitable for different washing scenarios, and meets the different usage needs of users.

[0068] The aforementioned plug-in assembly method also helps improve assembly accuracy. The first and second slots can serve as positioning structures, guiding the upper shell assembly 11 and the lower shell assembly 12 to be accurately installed on both sides of the separator 20, ensuring the positional accuracy and structural stability of the upper washing chamber 110 and the lower washing chamber 121. This precise assembly method can reduce quality problems caused by improper assembly, such as poor sealing of the washing chamber and deviation of the spray angle of the spray device, thereby improving the quality stability of the product.

[0069] In some embodiments, the height of the first inner wall is smaller than the height of the first outer wall, i.e., a height difference is formed between the first inner wall and the first outer wall. This configuration allows the higher first outer wall to form a relatively high blocking structure on the side away from the upper washing chamber 110. When the dishwasher 1 is operating, even if a small amount of washing water seeps out from the connection between the first connector and the first slot, it will be blocked by the higher first outer wall, preventing it from flowing directly out of the washing chamber. Instead, it will form a relatively static water seal area within the first slot, further preventing water from continuing to leak outwards, thus achieving a seal against leakage. Simultaneously, the relatively small height of the first inner wall, located closer to the upper washing chamber 110, makes it easier for water to flow back into the upper washing chamber 110 along the connection between the first connector and the first slot under the influence of gravity and the internal pressure of the washing chamber, rather than accumulating at the connection and causing leakage.

[0070] In some embodiments, the partition 20 is further provided with a guide slope, which is formed on the upper wall surface of the partition 20 and is inclined toward the slot 21, that is, the guide slope is inclined toward the first inner sidewall. Specifically, the guide slope is inclined downward along the direction close to the center of the upper shell assembly 11. The guide slope here can be a plane, that is, the guide slope has a chamfered structure. Of course, the guide slope can also be a raised arc-shaped surface, that is, the guide slope has a rounded corner structure; or, the guide slope can also be a concave arc-shaped surface. In this way, under the action of the guide slope, the water flows along the inclined direction of the guide slope, avoiding the water from splashing randomly in all directions or flowing directly vertically downward, which helps to guide the water flow more concentratedly to a specific position.

[0071] Meanwhile, during the operation of dishwasher 1, a large amount of water vapor is generated inside. The inclined guide slope can concentrate and guide the condensed water vapor to the slot 21 on the separator 20 more quickly, so as to better gather the water flow and avoid the water vapor from condensing irregularly on the first inner sidewall to form water droplets. It can also speed up the drainage speed. This not only reduces the problem of internal dampness of dishwasher 1 caused by water vapor condensation, but also helps to shorten the duration of the damp environment inside the upper washing chamber 110 and maintain a dry environment inside the upper washing chamber 110. It also reduces the problems of component corrosion and mold caused by dampness, and reduces the water accumulation time in the upper washing chamber 110. This helps to improve the overall working efficiency of dishwasher 1. In particular, it can complete the drainage operation faster during the drainage stage, saving time for subsequent rinsing, drying and other processes, and improving the reliability and stability of dishwasher 1.

[0072] The upper chamber water system 30 also includes an upper chamber drain pipe 36, which is connected to the outlet side of the upper chamber drain pump 32 and is used to discharge the washing water in the upper washing chamber 110. The upper chamber drain pipe 36 includes a first drain section 361, a bend section 362 and a second drain section 363 connected in sequence. The first drain section 361 is connected to the outlet side of the upper chamber drain pump 32, and the highest position of the center line of the bend section 362 is higher than the upper surface of the bottom wall of the upper washing chamber 110 formed by the partition 20. This can prevent water backflow during drainage and prevent water from leaking out of the upper chamber drain pipe 36 during washing, ensuring smooth drainage.

[0073] There is a height difference H between the highest point of the centerline of the bend section 362 and the upper surface of the separator 20, and the height difference H is greater than or equal to 5mm. During actual operation, some washing water inevitably remains in the upper washing chamber 110 and cannot be immediately discharged out of the upper washing chamber 110 through the upper chamber water cup 35. Therefore, in actual use, there is a height difference H between the highest point of the centerline of the bend section 362 and the actual highest water level in the upper washing chamber 110, and the height difference H is greater than or equal to 5mm. The height difference H can be 5mm, 6mm, or 7.5mm, etc., and this application does not impose any restrictions on this. It is understood that the height difference H should not be too large; otherwise, a high bend section 362 would result in an excessively large drainage pressure difference, increasing drainage difficulty and making the structure of the upper chamber drain pipe 36 redundant.

[0074] In some embodiments, please refer again Figure 1 , Figures 5 to 7 The upper chamber water system 30 also includes a cup drain pipe 37 connecting the upper chamber water cup 35 and the upper chamber drain pump 32 at the inlet side. The second mounting space 102 extends along the left-right direction of the inner liner 10 and has a first through-hole 102a on one side of the inner liner 10 in the left-right direction. A portion of the cup drain pipe 37 extends through the first through-hole 102a to the side of the inner liner 10 in the left-right direction to connect with the inlet side of the upper chamber drain pump 32. Through the design of the first through-hole 102a, the cup drain pipe 37 can avoid other components inside the inner liner 10, making full use of the extension area of ​​the second mounting space 102 in the left-right direction and avoiding the cup drain pipe 37 occupying additional external space. This reduces the complexity of the pipe layout, achieves a compact layout, and further saves installation space. Extending the cup drain pipe 37 to the side of the inner liner 10 can avoid pipe intersections with other water system components (such as the upper chamber washing pump 31 or heating device) while ensuring a smooth drainage path.

[0075] In other embodiments, it also includes an upper cavity water supply pipe connected to the upper cavity water cup 35, and the second installation space 102 has a second passage 102b on the other side of the inner liner 10 in the left-right direction, and the upper cavity water supply pipe passes through the second passage 102b. In addition, the upper cavity water system 30 also includes a connecting pipe 34, which includes a pump inlet pipe 341 and a pump outlet pipe 342. The pump inlet pipe 341 connects the inlet side of the upper cavity washing pump 31 and the upper cavity water cup 35, and the pump outlet pipe 342 connects the outlet of the upper cavity washing pump 31 and the upper washing cavity 110. The pump inlet pipe 341 or the pump outlet pipe 342 of the connecting pipe 34 of the upper cavity washing pump 31 can also be installed in the second through-hole 102b, so that the pump outlet pipe 342 can run on the rear side of the inner tank 10, thereby facilitating the extension of the pump outlet pipe 342 to the upper washing cavity 110 for water supply, and also facilitating the connection between the pump inlet pipe 341 and the upper cavity water cup 35, thus realizing a reasonable layout of the upper cavity water system 30.

[0076] In some embodiments, an upper chamber spray device 60 is provided in the upper washing chamber 110, the upper chamber spray device 60 is disposed on the partition 20 and communicates with the upper chamber water system 30, and a lower chamber spray device 70 is provided in the lower washing chamber 121, the lower chamber spray device 70 is disposed on the chassis 50 and communicates with the lower chamber water system 40; or, only the upper chamber spray device 60 or only the lower chamber spray device 70 may be provided, and the chamber without the spray device can be used alone for disinfection and drying, thereby simplifying the structure of the dishwasher 1, while ensuring the versatility of the dishwasher 1's functions and meeting the diverse user experience.

[0077] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0078] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A dishwasher, characterized in that, include: shell; The inner liner is located inside the outer shell and has a washing cavity; A separator, which is fitted into the washing cavity to divide the washing cavity into an upper washing cavity and a lower washing cavity; as well as An upper cavity water system is used to supply and drain water to the upper washing cavity. The upper cavity water system includes an upper cavity washing pump and an upper cavity drain pump. Both the upper cavity washing pump and the upper cavity drain pump are located on the rear side of the inner liner. Alternatively, one of the upper cavity washing pump and the upper cavity drain pump is located on the rear side of the inner liner, and the other of the upper cavity washing pump and the upper cavity drain pump is located on one side of the left or right side of the inner liner, between the outer shell and the inner liner.

2. The dishwasher as described in claim 1, characterized in that, The inner liner includes a back panel, and at least one of the upper chamber washing pump and the upper chamber drain pump is disposed between the portion of the back panel corresponding to the lower washing chamber and the outer shell.

3. The dishwasher as described in claim 2, characterized in that, The inner liner also includes a receiving portion connected to the back panel. The receiving portion covers the rear side of the back panel and has a first installation space. The upper chamber washing pump and the upper chamber drain pump are both located within the first installation space.

4. The dishwasher as described in claim 3, characterized in that, The first installation space extends along the left and right direction of the inner liner, and the upper chamber washing pump and the upper chamber drain pump are arranged along the left and right direction.

5. The dishwasher as described in claim 1, characterized in that, The rear part of the inner liner is recessed into the lower washing chamber, so that part of the inner liner, the lower wall of the separator and the outer shell together define the second installation space; One of the upper chamber washing pump and the upper chamber drain pump is located within the second installation space, and the other of the upper chamber washing pump and the upper chamber drain pump is located on one side of the left and right sides of the inner tank.

6. The dishwasher as described in claim 5, characterized in that, The upper chamber water system also includes an upper chamber water cup, and the inlet sides of the upper chamber washing pump and the upper chamber drain pump are both connected to the upper chamber water cup; The upper chamber water cup is connected to the partition and is located in the second installation space. The partition is also provided with an upward-facing slot, through which the upper chamber water cup communicates with the upper washing chamber.

7. The dishwasher as described in claim 6, characterized in that, The separator is also provided with a flow guide slope, which is formed on the upper wall of the separator and is inclined toward the slot.

8. The dishwasher as described in claim 5, characterized in that, The upper cavity water system also includes: The upper chamber drain pipe is connected to the outlet side of the upper chamber drain pump and is used to discharge the washing water in the upper washing chamber. The upper chamber drain pipe includes a first drain section, a bend section and a second drain section connected in sequence. The first drain section is connected to the outlet side of the upper chamber drain pump, and the highest position of the center line of the bend section is higher than the upper surface of the bottom wall of the upper washing chamber formed by the partition.

9. The dishwasher as described in claim 8, characterized in that, It also includes a cup drain pipe connecting the upper chamber cup and the inlet side of the upper chamber drain pump. The second installation space extends along the left-right direction of the inner liner and has a first passage on one side of the inner liner in the left-right direction. A portion of the cup drain pipe extends through the first passage to the side of the inner liner in the left-right direction to connect with the inlet side of the upper chamber drain pump.

10. The dishwasher as described in claim 9, characterized in that, It also includes an upper cavity water supply pipe that connects to the upper cavity water cup, and the second installation space has a second opening on the other side of the inner liner in the left-right direction, through which the upper cavity water supply pipe passes.

11. The dishwasher as described in any one of claims 2 to 10, characterized in that, The inner liner includes an upper shell assembly and a lower shell assembly, wherein the separator is inserted into the upper shell assembly and the two cooperate to define the upper washing chamber and / or the separator is inserted into the lower shell assembly and the two cooperate to define the lower washing chamber.

12. The dishwasher as claimed in claim 11, characterized in that, The upper shell assembly has a first insertion portion on its side wall, and the separator has a first slot for inserting the first insertion portion. The first slot includes: The first inner sidewall is located on the side closest to the upper shell assembly; and The first outer sidewall is located on the side away from the upper shell assembly and is disposed opposite to the first inner sidewall. The height of the first inner sidewall is smaller than the height of the first outer sidewall.

13. The dishwasher as described in any one of claims 2 to 10, characterized in that, It also includes a lower cavity water system and a base, the base being connected to the bottom of the outer shell and located below the chassis of the inner liner, the lower cavity water system being suitable for supplying and draining the lower washing cavity and located between the base and the chassis.

14. The dishwasher as described in claim 13, characterized in that, The upper washing chamber is equipped with an upper chamber spray device, which is mounted on the partition and connected to the upper chamber water system. And / or, a lower chamber spray device is provided in the lower washing chamber, the lower chamber spray device is mounted on the chassis and is connected to the lower chamber water system pipeline.

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