Dishwasher

Abstract

The utility model discloses a dish washing machine which comprises a shell, an inner container, a partition piece and an upper cavity water way system. The inner container is arranged in the shell and is provided with a washing inner cavity; the partition piece is assembled in the washing inner cavity so as to divide the washing inner cavity into an upper washing cavity and a lower washing cavity; the upper cavity water way system is suitable for supplying and draining water to the upper washing cavity, the upper cavity water way system comprises an upper cavity washing pump, an upper cavity draining pump and a heating device which are all located between the shell and the inner container, and the heating device is communicated with an upper cavity washing pump water way through a connecting pipeline. According to the technical scheme, diversified washing requirements of users can be met.

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. Utility Model Content

[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 assembled into the washing cavity to divide the washing cavity 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, an upper chamber drain pump, and a heating device, all located between the shell and the inner tub. The heating device is connected to the upper chamber washing pump water system via a connecting pipe.

[0005] In some embodiments, the upper chamber washing pump, the upper chamber drain pump, and the heating device are respectively disposed on different outer peripheral sides of the inner liner.

[0006] In some embodiments, the upper chamber washing pump and the upper chamber drain pump are respectively located on the left and right sides of the inner tank, and the heating device is located on the rear side of the inner tank.

[0007] In some embodiments, the upper chamber washing pump, the upper chamber drain pump, and the heating device are all disposed between the portion of the inner tank corresponding to the lower washing chamber and the outer shell.

[0008] In some embodiments, portions of the structure on the left and right sides of the inner liner are 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 first installation space, and the upper chamber washing pump and the upper chamber drain pump are respectively located within the corresponding first installation space.

[0009] 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 mounting space, within which the heating device is disposed.

[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, the heating device includes:

[0017] A housing assembly having a heating chamber internally and having an inlet and an outlet communicating with the heating chamber, both the inlet and the outlet being connected to the connecting pipe; and

[0018] A heating element is disposed on the housing assembly and extends into the heating chamber;

[0019] In the vertical direction, the water outlet is set lower than the water inlet.

[0020] In some embodiments, the lowest point of the heating chamber is not lower than the center point of the water cup drain pipe.

[0021] 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.

[0022] In some embodiments, the upper chamber washing pump and the heating device are located on the same outer peripheral side of the inner liner, and the upper chamber drain pump is located on the other outer peripheral side of the inner liner.

[0023] 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.

[0024] 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:

[0025] The first inner sidewall is located on the side closest to the upper shell assembly; and

[0026] 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.

[0027] 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.

[0028] 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;

[0029] 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.

[0030] 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 can be 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.

[0031] Furthermore, by separating the heating element from the upper chamber wash pump, the two can operate independently without interference. If one component fails, the other can still function normally, reducing the risk of overall system downtime. The independently designed heating element can also be disassembled and repaired separately from the wash pump, reducing maintenance complexity and costs. Independent operation of the heating element also avoids the upper chamber wash pump bearing the dual load of heating and pumping water simultaneously, thus extending its lifespan. The heating element can also better control its own temperature, preventing damage to the upper chamber wash pump or other water circuit components due to overheating, further reducing dishwasher maintenance costs.

[0032] In this setup, the heating element is connected to the upper chamber washing pump water circuit via a connecting pipe. This allows for rapid heating of water as it flows through the heating element, minimizing heat loss during transmission. Furthermore, the heating element can independently control the water temperature according to washing needs, without relying on the washing pump's operating status. This design avoids unnecessary energy consumption, improves energy efficiency, and makes the entire water circuit system more modular. It facilitates adaptive adjustments based on different dishwasher models or functional requirements. In different dishwasher operating modes, the heating element can independently adjust its heating power, while the washing pump operates according to water flow requirements. Both work collaboratively without interfering with each other, thereby further meeting diverse user washing needs. Attached Figure Description

[0033] 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.

[0034] Figure 1 This is a schematic diagram of the structure of a dishwasher according to an embodiment of this application;

[0035] Figure 2 for Figure 1The diagram shows an exploded view of the dishwasher.

[0036] Figure 3 for Figure 1 The diagram shows a structural schematic of the dishwasher from another perspective.

[0037] Figure 4 This is a schematic diagram of the chassis and lower water system of the dishwasher of this application.

[0038] Figure 5 for Figure 1 The diagram shows a cross-sectional view of the dishwasher.

[0039] Figure 6 for Figure 3 The diagram shows the structure of the heating device.

[0040] Figure 7 for Figure 6 The diagram shows an exploded view of the heating device.

[0041] Figure 8 for Figure 6 The diagram shows a cross-sectional view of the heating device.

[0042] Figure 9 for Figure 1 The diagram shows another perspective of the dishwasher's structure.

[0043] Figure 10 for Figure 1 The diagram shows a structural schematic of the dishwasher from another perspective.

[0044] Figure 11 for Figure 9 The diagram shows an enlarged cross-sectional view of a portion of the dishwasher structure.

[0045] Explanation of icon numbers:

[0046] 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 rear panel; 132. Lower rear panel; 20. Divider; 21. Slot; 30. Upper chamber water system; 31. Upper chamber washing pump; 32. Upper chamber drain pump; 33. Heating device; 331. Housing assembly Components; 331a, Heating chamber; 331b, Water inlet; 331c, Water outlet; 3311, Shell body; 3312, End cap; 332, Heating element; 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.

[0047] 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

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] To resolve the above issues, please refer to [link / reference]. Figures 1 to 3 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.

[0057] 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 chamber 110 and a lower washing chamber 121. By providing relatively independent upper and lower washing chambers 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 chambers 110 and 121 can be used simultaneously, increasing the total washing space and improving space utilization, thus meeting diverse user needs.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] 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.

[0067] 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.

[0068] 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.

[0069] The upper chamber water system 30 is used for water supply and drainage of the upper washing chamber 110. The upper chamber water system 30 includes an upper chamber washing pump 31, an upper chamber drain pump 32, and a heating device 33, all located between the outer shell and the inner tank 10. The heating device 33 is connected to the upper chamber washing pump 31 via a connecting pipe 34. Compared to the traditional design that integrates the heating device 33 into the pump chamber of the washing pump, the present application's technical solution sets the heating device 33 independently outside the upper chamber washing pump 31. The two can operate independently without interference. When one component fails, the other can still operate normally, reducing the risk of overall system downtime. The independently designed heating device 33 can be disassembled and repaired separately from the upper chamber washing pump 31, reducing the complexity and cost of maintenance. The independent operation of the heating device 33 also avoids the upper chamber washing pump 31 from bearing the dual load of heating and pumping water at the same time, thereby extending the service life of the upper chamber washing pump 31. The heating device 33 can better control its own temperature and avoid damage to the upper chamber washing pump 31 or other water circuit components due to overheating, thus reducing the maintenance cost of the dishwasher 1.

[0070] In the above configuration, the heating device 33 is connected to the water circuit of the upper chamber washing pump 31 via the connecting pipe 34. This allows for rapid heating of water as it flows through the heating device 33, reducing heat loss during transmission. Furthermore, the heating device 33 can independently control the water temperature according to washing needs, without relying on the operating status of the washing pump. This design avoids unnecessary energy consumption, improves energy efficiency, and makes the entire water circuit system more modular. It facilitates adaptive adjustments based on different dishwasher models or functional requirements. Under different operating modes of the dishwasher 1 (such as quick wash, energy-saving wash, and heavy-duty wash), the heating device 33 can independently adjust its heating power, while the washing pump operates according to water flow requirements. The two work together without interfering with each other, thereby further meeting the diverse washing needs of users.

[0071] In one embodiment, the upper chamber washing pump 31, the upper chamber drain pump 32, and the heating device 33 are respectively disposed on different outer peripheral sides of the inner liner 10. This distribution of the three components on different outer peripheral sides of the inner liner 10 avoids structural accumulation caused by placing them on the same outer peripheral side, thus improving space utilization. That is, the upper chamber washing pump 31, the upper chamber drain pump 32, and the heating device 33 can be respectively disposed on the left and right sides and the rear side of the inner liner 10. For example, the heating device 33 and the upper chamber drain pump 32 can be disposed on the left and right sides of the inner liner 10, while the upper chamber washing pump 31 can be disposed on the rear side of the inner liner 10; or, the heating device 33 and the upper chamber washing pump 31 can be disposed on the left and right sides of the inner liner 10, while the upper chamber drain pump 32 can be disposed on the rear side of the inner liner 10.

[0072] In another embodiment, the upper chamber washing pump 31 and the heating device 33 are located on the same outer periphery of the inner tank 10, and the upper chamber drain pump 32 is located on the other outer periphery of the inner tank 10. That is, the upper chamber washing pump 31 and the heating device 33 can be jointly arranged on the rear side of the inner tank 10, while the upper chamber drain pump 32 is arranged on one of the left and right sides of the inner tank 10; or, the upper chamber washing pump 31 and the heating device 33 can be jointly arranged on one of the left and right sides of the inner tank 10, while the upper chamber drain pump 32 is arranged on the other side of the left and right sides of the inner tank 10 or on the rear side of the inner tank 10. This arrangement allows the upper chamber washing pump 31 and the heating device 33 to be arranged close to each other, saving the length of the connecting pipe 34, thereby heating the water flow faster, shortening the preheating time, and improving washing efficiency.

[0073] Furthermore, the upper chamber washing pump 31, the upper chamber drain pump 32, and the heating device 33 are all located between the inner tub 10 corresponding to the lower washing chamber 121 and the outer shell, which can make full use of the space between the dishwasher 1 outer shell and the inner tub 10 and avoid structural congestion caused by excessive concentration of components. By placing the upper chamber washing pump 31, the upper chamber drain pump 32, and the heating device 33 in the inner tub 10 corresponding to the lower washing chamber 121, instead of sharing the lower chamber water system 40 between the base and the chassis 50, the pipe length of the upper washing chamber 110 supply and drain pipes can be shortened, the water supply time can be reduced, the water efficiency can be improved, and thus the washing efficiency can be improved. It can also discharge sewage more quickly through gravity, avoid sewage retention, and reduce the possibility of secondary pollution.

[0074] In a specific embodiment of this application, the upper chamber washing pump 31 and the upper chamber drain pump 32 are respectively arranged on the left and right sides of the inner tank 10, and the heating device 33 is located on the rear side of the inner tank 10. Understandably, to avoid excessive length of the connecting pipe 34, thereby increasing the space occupied between the inner tank 10 and the outer shell, the heating device 33 can be arranged close to the upper chamber washing pump 31. For example, when the upper chamber washing pump 31 is arranged on the left side of the inner tank 10, the heating device 33 is located on the rear side of the inner tank 10 and close to the left side. Correspondingly, when the upper chamber washing pump 31 is arranged on the right side of the inner tank 10, the heating device 33 is located on the rear side of the inner tank 10 and close to the right side. This achieves efficient heating by the heating device 33, ensuring that hot water can be quickly supplied to the upper chamber washing pump 31, improving heating efficiency, and better meeting the diverse usage needs of users.

[0075] The left and right sides of the inner tank 10 are recessed into the washing chamber 121, so that the lower wall of the inner tank 10, the partition 20, and the outer shell together define the first installation space 101. The upper chamber washing pump 31 and the upper chamber drain pump 32 are respectively located in the corresponding first installation space 101. The rear side of the inner tank 10 is recessed into the washing chamber 121, so that the lower wall of the inner tank 10, the partition 20, and the outer shell together define the second installation space 102. The heating device 33 is disposed in the second installation space 102. It is understood that the inner liner 10 also includes a back panel 13, which covers the rear side of the upper shell assembly 11 and the lower shell assembly 12. In the structural form 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 from each other. 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 from the rear side and ensure structural strength. Thus, the second installation space 102, which corresponds to the lower washing chamber 121, can 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.

[0076] This design allows the upper chamber washing pump 31, upper chamber drain pump 32, and heating device 33 to be located outside the washing cavity, avoiding excessive occupation of the internal effective washing space. They are also positioned closer to the upper chamber washing area, reducing pipe length and improving water flow efficiency. This also facilitates heat dissipation and maintenance for the upper chamber washing pump 31 and upper chamber drain pump 32. Furthermore, the installation of these three components within a concave space formed by the inner tank 10's own structure, along with the partition 20 and the outer shell, provides stable support for the components, reducing vibration and displacement during operation and improving the overall structural stability of the dishwasher 1. This 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 component installation more concealed, reducing the occupation of internal washing space and thus increasing the space for tableware, enhancing the practicality of the dishwasher 1.

[0077] In some embodiments, please refer to Figures 6 to 9The upper chamber water system 30 also 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 is connected to 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, food residue, grease, debris and other impurities 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.

[0078] Specifically, the connecting pipe 34 includes a pump inlet pipe 341 and a pump outlet pipe 342. The pump inlet pipe 341 connects the inlet side of the upper chamber washing pump 31 and the upper chamber water cup 35, and the pump outlet pipe 342 connects the outlet of the upper chamber washing pump 31 and the upper washing chamber 110. The heating device 33 is located within the second installation space 102 and is mounted on either the pump inlet pipe 341 or the pump outlet pipe 342. When the heating device 33 is mounted on the pump inlet pipe 341, the water is heated by the heating device 33 before entering the upper chamber washing pump 31. This method can... This ensures that the water entering the upper chamber washing pump 31 is already hot, thereby improving the efficiency of the upper chamber washing pump 31 and reducing heat loss of hot water during transmission. When the heating device 33 is installed on the pump outlet pipe 342, the water is heated after leaving the upper chamber washing pump 31 and is directly supplied to the upper washing chamber 110 through the pump outlet pipe 342. This method can ensure that hot water directly enters the upper washing chamber 110, further improving the washing effect. It is especially suitable for washing scenarios that require higher water temperatures, thereby meeting the diverse usage needs of users.

[0079] 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.

[0080] 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.

[0081] 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.

[0082] 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.

[0083] 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.

[0084] 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.

[0085] In some embodiments, the upper cavity water system 30 further includes an upper cavity drain pipe 36, which is connected to the outlet side of the upper cavity drain pump 32 and is used to discharge the washing water in the upper washing cavity 110. The upper cavity 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 cavity drain pump 32, and the highest position of the center line of the bend section 362 is higher than the upper surface of the cavity bottom wall formed by the separator 20 to prevent water backflow during drainage and prevent water leakage from the upper cavity drain pipe 36 during washing, thus ensuring smooth drainage.

[0086] 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.

[0087] In some embodiments, the upper cavity water system 30 further includes a cup drain pipe 37 connecting the upper cavity cup 35 and the inlet side of the upper cavity drain pump 32. 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 cavity 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 avoids pipe intersections with other water system components (such as the upper cavity washing pump 31 or heating device 33) while ensuring a smooth drainage path.

[0088] In other embodiments, please refer to Figures 5 to 11 It also includes an upper cavity water supply pipe connected to the upper cavity water cup 35. The second installation space 102 has a second passage 102b on the other side of the inner liner 10 in the left and right direction. The upper cavity water supply pipe passes through the second passage 102b. In the structure in which the upper cavity washing pump 31 is set in the first installation space 101, the pump inlet pipe 341 or pump outlet pipe 342 of the connecting pipe 34 of the upper cavity washing pump 31 can also pass through the second passage 102b, which is convenient to connect with the heating device 33 set in the second installation space 102, and also convenient to connect the pump inlet pipe 341 to the upper cavity water cup 35, so as to realize the reasonable layout of the upper cavity water system 30.

[0089] In some embodiments, the heating device 33 includes a housing assembly 331 and a heating element 332. The housing assembly 331 has a heating chamber 331a formed within it, and has an inlet 331b and an outlet 331c communicating with the heating chamber 331a. Both the inlet 331b and the outlet 331c are connected to a connecting pipe 34. The heating element 332 is disposed on the housing assembly 331 and extends into the heating chamber 331a. The housing assembly 331 may further include a shell body 3311 and an end cap 3312 connected together by screwing, welding, or other means to form a closed heating chamber 331a inside, improving airtightness and preventing the washing water inside the heating chamber 331a from leaking out and causing safety hazards. The terminals of the heating element 332 can be fixed to the end cover 3312, so that the heating element 332 is connected to the end cover 3312, which facilitates the disassembly and maintenance of the heating element 332. The heating body of the heating element 332 extends into the heating chamber 331a to quickly heat the washing water flowing into the heating chamber 331a from the water inlet 331b. The heated washing water flows out from the water outlet 331c and is transported to the upper washing chamber 110 through the connected pipe 34, providing the upper washing chamber 110 with the hot washing water required for cleaning, thereby meeting the user's washing needs and improving the user experience.

[0090] In this design, the water outlet 331c is positioned lower than the water inlet 331b. This height difference between the inlet 331b and the outlet 331c ensures stable water flow and uniform heating, preventing water temperature fluctuations from affecting the washing effect. By fully utilizing the principle of natural convection, heating efficiency is optimized, energy loss is reduced, bubble accumulation is prevented, and system reliability and maintenance convenience are improved. This design not only enhances the heating performance and washing effect of the dishwasher 1, but also saves energy and is environmentally friendly, improving the user experience.

[0091] It should be noted that the lowest point of the heating chamber 331a must not be lower than the center of the water cup drain pipe 37. If the lowest point of the heating chamber 331a is lower than the center of the water cup drain pipe 37, cold water may accumulate at the bottom of the heating chamber 331a, affecting heating efficiency. By raising the lowest point of the heating chamber 331a, it is ensured that the water in the heating chamber 331a can be completely drained, making it easier for users or maintenance personnel to clean scale or impurities in the heating chamber 331a, maintaining the efficient operation of the heating device 33. At the same time, it also avoids the existence of local cold water areas, ensuring that the water in the heating chamber 331a is fully heated and that the water flow is heated evenly within the heating chamber 331a, thus improving heating efficiency.

[0092] 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.

[0093] 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.

[0094] 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 The utility model relates to a washing machine, which comprises: a housing; a liner arranged in the housing and having a washing cavity; a partition arranged in the washing cavity to divide the washing cavity into an upper washing cavity and a lower washing cavity; an upper cavity water system adapted to supply and drain water to the upper washing cavity, wherein the upper cavity water system comprises an upper cavity washing pump, an upper cavity drainage pump and a heating device, all of which are arranged between the housing and the liner, and the heating device is in water communication with the upper cavity washing pump through a connecting pipeline. The upper cavity washing pump, the upper cavity drainage pump and the heating device are respectively arranged at different peripheral sides of the liner.

2. The dishwasher according to claim 1, characterized in that The upper cavity washing pump and the upper cavity drainage pump are respectively arranged at left and right sides of the liner, and the heating device is arranged at a rear side of the liner.

3. The warewashing machine of claim 2, wherein, The upper cavity washing pump, the upper cavity drainage pump and the heating device are all arranged between the liner and the housing at a portion corresponding to the lower washing cavity.

4. The warewashing machine of claim 3, wherein, The portion of the liner at the left and right sides is respectively concavely arranged towards the lower washing cavity, so that the portion of the liner, a lower wall of the partition and the housing jointly define a first mounting space, and the upper cavity washing pump and the upper cavity drainage pump are respectively arranged in the corresponding first mounting space.

5. The warewashing machine of claim 4, wherein, The portion of the liner at the rear side is concavely arranged towards the lower washing cavity, so that the portion of the liner, a lower wall of the partition and the housing jointly define a second mounting space, and the heating device is arranged in the second mounting space.

6. The warewashing machine of claim 4, wherein, The upper cavity water system further comprises an upper cavity water cup, and the inlet sides of the upper cavity washing pump and the upper cavity drainage pump are both in communication with the upper cavity water cup.

7. The warewashing machine of claim 6, wherein, The upper cavity water cup is connected to the partition and arranged in the second mounting space, and a slot is further formed in the partition and directed upwards, and the upper cavity water cup is in communication with the upper washing cavity through the slot. A flow guide slope is further arranged on the partition, and the flow guide slope is formed on an upper wall of the partition and is arranged to be inclined towards the slot.

8. The warewash machine of claim 7, wherein, The upper cavity water system further comprises:

9. The warewashing machine of claim 6, wherein, an upper cavity drainage pipeline in communication with the outlet side of the upper cavity drainage pump and adapted to drain washing water in the upper washing cavity, wherein the upper cavity drainage pipeline comprises a first drainage section, an elbow section and a second drainage section which are sequentially connected, the first drainage section is connected to the outlet side of the upper cavity drainage pump, and the highest position of the center line of the elbow section is arranged higher than the upper surface of the bottom wall of the upper washing cavity formed by the partition. The upper cavity water system further comprises a water cup drainage pipeline connecting the upper cavity water cup and the inlet side of the upper cavity drainage pump, the second mounting space extends along the left and right directions of the liner and has a first through hole on one side in the left and right directions of the liner, and a portion of the water cup drainage pipeline extends to the side in the left and right directions of the liner through the first through hole to be connected to the inlet side of the upper cavity drainage pump.

10. The warewash machine of claim 9, wherein, The heating device comprises:

11. The warewash machine of claim 10, wherein, a shell assembly having a heating cavity formed therein and having a water inlet and a water outlet in communication with the heating cavity, wherein the water inlet and the water outlet are both in communication with the connecting pipeline; and a heating element arranged on the shell assembly and extending into the heating cavity. ​ The water outlet is arranged lower than the water inlet in the vertical direction.

12. The warewash machine of claim 11, wherein, The lowest position of the heating cavity is not lower than the center position of the water cup drain pipe.

13. The warewash machine of claim 10, wherein, An upper cavity water supply pipe connected to the upper cavity water cup is further included, and the second mounting space has a second through opening on the other side in the left-right direction of the inner container, and the upper cavity water supply pipe is arranged through the second through opening.

14. The warewash machine of claim 1, wherein, The upper cavity washing pump and the heating device are arranged on the same outer circumferential side of the inner container, and the upper cavity drain pump is arranged on the other outer circumferential side of the inner container.

15. The warewashing machine of any one of claims 1 to 14, wherein, The inner container includes an upper shell assembly and a lower shell assembly, and the partition is inserted into the upper shell assembly and cooperates with the upper shell assembly to define the upper washing cavity, and / or the partition is inserted into the lower shell assembly and cooperates with the lower shell assembly to define the lower washing cavity.

16. The warewash machine of claim 15, wherein, The side wall of the upper shell assembly is provided with a first insertion part, and the partition is provided with a first insertion slot for inserting the first insertion part, and the first insertion slot includes: a first inner side wall located close to one side of the upper shell assembly; and a first outer side wall located away from the other side of the upper shell assembly and arranged opposite to the first inner side wall, and the height dimension of the first inner side wall is smaller than the height dimension of the first outer side wall.

17. The warewashing machine of any one of claims 1 to 14, wherein, A lower cavity waterway system and a base are further included, the base is connected to the bottom of the outer shell and located below the bottom disc of the inner container, and the lower cavity waterway system is adapted to supply and drain water to the lower washing cavity and located between the base and the bottom disc.

18. The warewash machine of claim 17, wherein, An upper cavity spraying device is arranged in the upper washing cavity, and the upper cavity spraying device is arranged on the partition and in communication with the upper cavity waterway system; and / or, a lower cavity spraying device is arranged in the lower washing cavity, and the lower cavity spraying device is arranged on the bottom disc and in communication with the lower cavity waterway system.

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