Dishwasher

Abstract

The application discloses a dishwasher, and relates to the technical field of kitchen appliances. The dishwasher comprises an inner container and a water cup assembly. The inner container has a washing inner cavity and a drying air duct. The drying air duct has a first air inlet and a first air outlet, and the first air inlet and the first air outlet are both communicated with the washing inner cavity. The water cup assembly comprises a water storage cup and a heating piece. The water storage cup is arranged at the bottom of the washing inner cavity and is communicated with the washing inner cavity. The heating piece is arranged in the water storage cup and is spaced apart from the inner wall of the water storage cup. The heating piece is used for heating washing water in the water storage cup. The heating piece is also used for heating air in the washing inner cavity, so as to dry tableware in the washing inner cavity. In the dishwasher, the heating piece simultaneously realizes the functions of heating washing and drying, a complicated independent drying device is not needed, the structure of the dishwasher is simplified, and the production cost is reduced.

Description

Technical Field

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

[0002] The hot water washing and drying functions of dishwashers have brought great convenience to people.

[0003] However, in related technologies, the heating and drying modules of dishwashers are mostly designed independently. For example, the heating module often uses a washing pump with heating function, which is expensive; while the drying module often uses a condenser drying system, which involves complex condenser devices and piping layouts, resulting in higher costs. Summary of the Invention

[0004] This application provides a dishwasher with a simple structure and low cost.

[0005] To achieve the above objectives, embodiments of this application provide a dishwasher, comprising:

[0006] The inner liner has a washing cavity and a drying air duct, wherein the drying air duct has a first air inlet and a first air outlet, both of which are connected to the washing cavity; and

[0007] Water cup components, including:

[0008] A water storage cup is located at the bottom of the washing cavity and communicates with the washing cavity; and

[0009] A heating element extends into the water storage cup and is spaced apart from the inner wall of the water storage cup. The heating element is used to heat the washing water in the water storage cup. The heating element is also used to heat the air in the washing cavity to dry the tableware in the washing cavity.

[0010] In some embodiments, the heating element includes:

[0011] The heating element is tubular and extends into the water storage cup;

[0012] The mounting part connects to both ends of the heating element and is installed on the inner wall of the water storage cup; and

[0013] The electrical connection part is electrically connected to both ends of the heating part and extends out of the water storage cup.

[0014] In some embodiments, the heating element further includes a sealing portion abutting between the mounting portion and the inner wall of the water storage cup.

[0015] In some embodiments, the heating element and the inner wall of the water storage cup are at a first predetermined distance D1, wherein the first predetermined distance D1 satisfies: D1≥5mm.

[0016] In some embodiments, the water cup assembly further includes a first filter element that covers the opening of the water storage cup to cover the heating element inside the water storage cup.

[0017] In some embodiments, the heating element and the first filter element have a second predetermined distance D2, which satisfies: D2≥4mm.

[0018] In some embodiments, the water cup assembly further includes a second filter element that passes through the first filter element and has a residue collection chamber that communicates with the washing chamber.

[0019] The heating element is annular and surrounds the outer periphery of the residue collection cavity.

[0020] In some embodiments, the heating element and the outer peripheral wall of the residue collection chamber are at a third predetermined distance D3, wherein the third predetermined distance D3 satisfies: D3≥5mm.

[0021] In some embodiments, the water cup assembly further includes an isolation cover movably disposed in the residue collection chamber, the isolation cover including a top wall and a peripheral wall connected to the periphery of the top wall, the top wall having a first shielding portion and the peripheral wall having a residue guide port;

[0022] The isolation cover has a slag collection position and a slag separation position. When the isolation cover is in the slag collection position, the slag guide port is at least partially higher than the top surface of the second filter element to connect the slag collection chamber and the washing chamber.

[0023] When the isolation cover is in the slag-separating position, the periphery of the first shielding part abuts against the cavity wall of the slag collection chamber to separate the washing inner cavity from the slag collection chamber.

[0024] In some embodiments, the peripheral wall of the isolation cover also has a second shielding portion, which is located below the slag guide port and abuts against the cavity wall of the residue collection chamber. When the isolation cover is in the slag-separating position, the second shielding portion separates the residue collection chamber from the water storage cup.

[0025] In some embodiments, the water cup assembly further includes a drive mechanism that is kinetically connected to the isolation cover for driving the isolation cover to move along the height direction of the second filter element between the slag collection position and the slag separation position.

[0026] In some embodiments, the dishwasher further includes a first fan located at one end of the drying duct near the first air inlet.

[0027] In some embodiments, the first air inlet is located on the top wall of the inner liner, and the first air outlet is located on the side wall of the inner liner.

[0028] In some embodiments, the inner liner also has a second air inlet and a second air outlet, both of which are connected to the washing inner cavity and the outside, and a second fan is provided at the second air outlet.

[0029] In some embodiments, the second air inlet and the second air outlet are respectively located on opposite side walls of the inner liner.

[0030] In the dishwasher provided in this embodiment, the heating element extends into the water reservoir and is spaced apart from the inner wall of the reservoir, meaning the heating element is suspended within the reservoir. On one hand, compared to a heating element attached to the wall, this significantly increases the contact area between the heating element and the washing water, allowing heat to be transferred to the water more quickly and evenly. This greatly improves the efficiency of heating the washing water, enabling it to reach the appropriate temperature more quickly, enhancing detergent activity, accelerating the dissolution and separation of grease, and improving washing performance. On the other hand, during the drying stage, when the heating element heats the air, the space between it and the inner wall of the reservoir allows the air to flow more freely around it, facilitating the formation and circulation of hot air. Hot air enters the washing chamber from the reservoir, contacts the surface of the tableware, removes moisture, then flows from the first air inlet to the drying duct, and finally flows back to the washing chamber from the first air outlet for reheating and circulation. This circulating airflow accelerates the evaporation of moisture from the tableware surface, improving drying efficiency. In addition, the heating element simultaneously performs heating washing and drying functions, eliminating the need for a complex separate drying device, simplifying the dishwasher's structure and reducing production costs. Attached Figure Description

[0031] 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.

[0032] Figure 1 This is a schematic diagram of the structure of a dishwasher provided in an embodiment of this application;

[0033] Figure 2Schematic diagram of the separator, water cup assembly and spray arm provided in the embodiments of this application;

[0034] Figure 3 Exploded view of the separator, water cup assembly, and spray arm provided in the embodiments of this application;

[0035] Figure 4 This is a schematic diagram of the structure of the heating element provided in the embodiments of this application;

[0036] Figure 5 A schematic diagram of the internal structure of the separator and water cup assembly provided in an embodiment of this application;

[0037] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0038] Figure 7 This is a schematic diagram of the structure of the water cup assembly provided in the embodiments of this application;

[0039] Figure 8 This is another structural schematic diagram of the water cup assembly provided in the embodiments of this application;

[0040] Figure 9 This is a schematic diagram of the structure of the isolation cover provided in the embodiments of this application;

[0041] Figure 10 This is a schematic diagram of the internal structure of the first and second filters provided in the embodiments of this application;

[0042] Figure 11 A schematic diagram of the internal structure of the separator, water cup assembly, drainage water passage and washing water passage provided in the embodiments of this application;

[0043] Figure 12 Another structural schematic diagram of the separator, water cup assembly, drainage water passage and washing water passage provided in the embodiments of this application;

[0044] Figure 13 This is a partial internal structure diagram of a dishwasher provided in an embodiment of this application;

[0045] Figure 14 This is a schematic diagram of another part of the internal structure of the dishwasher provided in an embodiment of this application.

[0046] Explanation of icon numbers:

[0047] 10. Inner liner; 100. Washing chamber; 101. Upper washing chamber; 102. Lower washing chamber; 103. Drying air duct; 1031. First air inlet; 1032. First air outlet; 104. Second air inlet; 105. Second air outlet; 20. Divider; 30. Water cup assembly; 31. Water storage cup; 32. Heating element; 321. Heating unit; 322. Mounting part; 323. Electrical connection part; 324. Sealing. 33. First filter element; 34. Second filter element; 3401. Residue collection chamber; 35. Isolation cover; 351. First shielding part; 352. Second shielding part; 3501. Slag guide port; 34. Drive mechanism; 341. Motor; 342. Transmission screw; 40. Drainage water channel; 41. Drainage pump; 50. Washing water channel; 51. Washing pump; 52. Spray arm; 61. First fan; 62. Second fan.

[0048] 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

[0049] 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.

[0050] In the following description, when referring to the accompanying drawings, the same numbers in different drawings denote the same or similar elements unless otherwise indicated. 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] In modern life, dishwashers have brought great convenience to people with their hot water washing and drying functions. However, in related technologies, the heating and drying modules of dishwashers are mostly designed independently. For example, the heating module often uses a washing pump with heating function to heat the washing water. Although it can achieve hot water washing, such a dedicated heating washing pump is quite expensive. As for the drying module, condensation drying systems are more common. They dry water by cooling water vapor and causing it to condense into water. However, this system involves a complex piping layout, resulting in high costs. The high cost not only limits the market penetration of dishwashers but also increases the purchasing burden on consumers.

[0055] In this regard, this application provides a dishwasher with a simple structure and low cost.

[0056] Specifically, please refer to Figures 1 to 6 , Figure 1 This is a schematic diagram of the dishwasher provided in this embodiment;

[0057] Figure 2 This is a schematic diagram of the structure of the separator 20, the water cup assembly 30, and the spray arm 52 provided in this embodiment; Figure 3 Exploded view of the separator 20, water cup assembly 30 and spray arm 52 provided in this embodiment; Figure 4 This is a schematic diagram of the structure of the heating element 32 provided in this embodiment; Figure 5 This is a schematic diagram of the internal structure of the separator 20 and the water cup assembly 30 provided in this embodiment; Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0058] The dishwasher in this embodiment includes a shell, a base, an inner liner 10, a door, and a water cup assembly 30.

[0059] The dishwasher's outer shell and base form its basic framework. The outer shell encloses the inner tub 10 and other internal components, protecting the internal structure and enhancing its appearance. The base supports the inner tub 10 and the entire internal structure of the dishwasher, ensuring stability during operation. The base is typically made of sturdy and durable materials, such as high-strength plastic or metal, to withstand the weight and pressure generated by the inner tub 10, dishes, and the washing process. The base can be equipped with reinforced support feet to further enhance stability. The outer shell can be made of different materials depending on design requirements; for example, a metal shell offers better durability and a premium feel, while a plastic shell prioritizes lightweight design and cost control.

[0060] The inner tank 10 in this embodiment is a key component of the dishwasher, forming a washing cavity 100 for accommodating tableware. The inner tank 10 can be formed by a top plate, a base, left and right side plates, and a back plate, creating a relatively enclosed space to prevent water and detergent leakage during the washing process and ensure that the washing operation takes place in a stable environment. For example, during the water spray washing stage, the inner tank 10 can withstand internal water pressure, ensuring that water does not leak out, thereby achieving efficient tableware cleaning.

[0061] In one embodiment, a dish rack is installed in the washing chamber 100 for placing tableware. The dish rack is movable, for example, it can be pushed and pulled out of the washing chamber 100. This allows the user to flexibly adjust the position of the dish rack according to the type and quantity of tableware to better adapt to different tableware placement needs. For example, when a large number of plates need to be washed, the dish rack can be pulled out to more easily arrange the plates neatly on the rack, and then pushed back into the washing chamber 100 for washing.

[0062] In this embodiment, the door is movably connected to the opening of the inner liner 10, specifically by a rotating mechanism. This rotating connection allows the door to be easily opened and closed, facilitating the user's loading and unloading of tableware. For example, the user can simply pull or push the door gently, and the door will smoothly rotate around its pivot axis, thus opening and closing the door.

[0063] In one embodiment, a control panel for controlling the washing program is installed on the door. The control panel integrates various operation buttons and a display screen. Users can select different washing modes, such as standard wash and quick wash, using the operation buttons to suit the cleaning needs of different types of tableware. The display screen shows the dishwasher's operating status in real time, such as remaining washing time and the current washing mode. For example, after placing the tableware in the dishwasher, the user selects the appropriate washing mode using the control panel on the door and starts the dishwasher to begin the automatic washing process. During the washing process, the user can monitor the dishwasher's progress at any time through the display screen.

[0064] The inner liner 10 of this embodiment can form one or more cavities to accommodate the washing requirements of different tableware.

[0065] In one embodiment, such as Figure 1 As shown, the dishwasher also includes a divider 20, which is disposed inside the inner tub 10. Specifically, the divider 20 can be a partition, its function being to divide the washing chamber 100 into an upper washing chamber 101 and a lower washing chamber 102. The divider 20 can be detachably connected to the inner wall of the inner tub 10. For example, the inner wall of the inner tub 10 has multiple spaced mounting slots along its height, and the divider 20 can be installed in different mounting slots according to actual needs. By changing the position of the divider 20 in the mounting slots, the volume of the upper washing chamber 101 and the lower washing chamber 102 can be flexibly adjusted. When washing a large number of large dishes, the divider 20 can be installed at a higher position to increase the volume of the lower washing chamber 102 to accommodate the large dishes; conversely, when washing a large number of small dishes, the divider 20 can be installed at a lower position to expand the space of the upper washing chamber 101. This flexible design better meets the diverse needs of different users for washing different dishes and improves the efficiency of the dishwasher.

[0066] During dishwasher operation, users can place different types of tableware into the upper washing chamber 101 and the lower washing chamber 102 according to their type, size, and quantity. For example, smaller, more delicate tableware, such as teacups and small bowls, can be placed in the upper washing chamber 101; larger, more greasy tableware, such as large plates and pots, can be placed in the lower washing chamber 102. This partitioned design allows the dishwasher to wash different types of tableware, improving the targeted and efficient washing process.

[0067] The water cup assembly 30 in this embodiment includes a water storage cup 31 and a heating element 32. When only one washing chamber 100 is provided, the water cup assembly 30 is located at the bottom of the washing chamber 100. When the washing chamber 100 is configured as an upper washing chamber 101 and a lower washing chamber 102, the water cup assembly 30 can be located in the upper washing chamber 101, the lower washing chamber 102, or both.

[0068] Specifically, the water storage cup 31 is located at the bottom of the partition 20 and / or the lower washing chamber 102, and communicates with the washing inner chamber 100. The following description uses the example of the water storage cup 31 being located in the partition 20 as an example.

[0069] The shape and capacity of the water reservoir 31 are determined according to the design requirements of the dishwasher, and it usually has a certain depth and volume to store enough washing water.

[0070] The water storage cup 31 can be made of materials such as plastic or stainless steel, and manufactured through injection molding or stamping. Its connection to the separator 20 can be achieved through snap-fit, bolt connection, or integrated molding, ensuring a secure and well-sealed connection to prevent water leakage during washing.

[0071] During dishwasher operation, washing water in the washing chamber 100 flows into the water storage cup 31 under gravity. The water storage cup 31 stores the washing water, providing a stable water source for the washing process. When the washing pump 51 starts, the washing water in the water storage cup 31 is drawn out and transported through pipes to the spray arm 52. The spray arm 52 sprays the washing water onto the dishes, cleaning them. This design allows the washing water to be recycled within the washing system, improving water resource utilization and reducing energy consumption.

[0072] The heating element 32 in this embodiment is a key component of the water cup assembly 30. It is used not only to heat the washing water, but also to heat the air in the washing cavity 100 to dry the tableware.

[0073] Specifically, the heating element 32 extends into the water storage cup 31 and is spaced apart from the inner wall of the water storage cup 31, that is, the heating element 32 is suspended in the water storage cup 31. The heating element 32 is usually a heating element such as a resistance wire or a heating tube, and its shape and size are designed according to the internal space of the water storage cup 31 to ensure that it can fully contact the washing water.

[0074] For example, the heating element 32 is fixed to the inner wall of the water storage cup 31 at intervals by a bracket, buckle, or other fixing device to ensure its stable position in the water storage cup 31. The heating element 32 is connected to the power system of the dishwasher, and the heating power is adjusted and controlled by the control system.

[0075] Because the heating element 32 is suspended and in full contact with the washing water, it significantly increases the contact area between the heating element 32 and the washing water compared to when the heating element 32 is attached to the wall. This allows heat to be transferred to the washing water more quickly and evenly, greatly improving the efficiency of heating the washing water. It can heat the washing water to the appropriate temperature more quickly, enhancing the activity of the detergent, accelerating the dissolution and separation of oil stains, and improving the washing effect. Furthermore, during the drying stage, when the heating element 32 heats the air, the space between it and the inner wall of the water storage cup 31 allows the air to flow more freely around it. This facilitates the formation and circulation of hot air, improving the efficiency of heating the air. It can also more quickly distribute hot air into the washing cavity 100, accelerating the evaporation of moisture from the surface of the tableware and achieving efficient drying.

[0076] The dishwasher also includes a drain water path 40 and a washing water path 50. Exemplarily, the drain water path 40 includes a drain pump 41 and a drain pipe. The drain pipe is made of a corrosion-resistant material, such as plastic. The drain pump 41 provides the power for drainage. The drain pipe is connected to the water reservoir 31 and the external drain outlet via a sealed connection to ensure no leakage occurs during drainage. The drain pump 41 is connected to the drain pipe and is electrically connected to the dishwasher's control system to achieve automatic drainage control.

[0077] The washing water circuit 50 includes a washing pump 51 and a spray arm 52. The water inlet of the washing pump 51 is connected to the water storage cup 31, and the water outlet of the washing pump 51 is connected to the spray arm 52.

[0078] During the washing stage, the user places the dishes in the upper washing chamber 101 or the lower washing chamber 102 and starts the dishwasher. Washing water flows into the water storage cup 31, and the heating element 32 begins to heat the washing water in the water storage cup 31. When the washing water reaches the set temperature, the washing pump 51 starts, drawing the hot water from the water storage cup 31 and delivering it through pipes to the spray arm 52. The spray arm 52 sprays the hot water onto the dishes at a certain pressure and angle, rinsing and cleaning them. The washed water then flows back into the water storage cup 31, forming a circulating washing process.

[0079] After the washing cycle is complete, the drain pump 41 starts to drain the washing water from the water storage cup 31 and the washing chamber 100 of the dishwasher.

[0080] After drainage is complete, the heating element 32 no longer comes into contact with the washing water, but instead directly heats the air in the washing chamber 100. The heated air circulates in the washing chamber 100, carrying away moisture from the surface of the tableware and drying it.

[0081] As can be seen, the dishwasher of this embodiment has the following beneficial effects:

[0082] First, the heating element 32 simultaneously achieves heating, washing, and drying functions, eliminating the need for a complex independent drying device, simplifying the dishwasher's structure, reducing production costs, and improving the product's cost-effectiveness.

[0083] Secondly, the heating element 32 is spaced apart from the inner wall of the water storage cup 31, which improves the efficiency of heating the washing water and air, shortens the washing and drying time, and further improves the efficiency of the dishwasher.

[0084] Finally, the divider 20 divides the washing chamber 100 into an upper washing chamber 101 and a lower washing chamber 102, enabling the dishwasher to wash different types of tableware, improving washing efficiency and effectiveness, and meeting diverse user needs.

[0085] In one embodiment, such as Figure 4As shown, the heating element 32 includes a heating part 321, a mounting part 322, and an electrical connection part 323.

[0086] The heating element 321 is tubular, maximizing the contact area with the washing water within the limited space of the water reservoir 31. Extending into the water reservoir 31, the heating element 321 is the core component of the heating function. During dishwasher operation, current passes through the heating element 321, converting electrical energy into heat energy to heat the washing water in the water reservoir 31. The heating element 321 can be made of a metal material with good electrical and thermal conductivity, such as stainless steel, to ensure efficient heating.

[0087] The mounting part 322 connects to both ends of the heating part 321 and is used to securely mount the heating part 321 onto the inner wall of the water storage cup 31 to prevent displacement due to water flow impact or vibration during dishwasher operation. The mounting part 322 can be made of plastic or metal and manufactured through processes such as injection molding and stamping. Its connection to the inner wall of the water storage cup 31 can be by snap-fit ​​or bolt connection to ensure the stability of the connection.

[0088] The electrical connection part 323 is electrically connected to the heating part 321 at both ends, and can be connected to the heating part 321 by welding, to provide power to the heating part 321. The electrical connection part 323 extends out of the water reservoir 31 for easy connection to the dishwasher's power system. The electrical connection part 323 can be made of a metal material with good electrical conductivity.

[0089] Furthermore, the heating element 32 also includes a sealing portion 324, which abuts against the inner wall of the mounting portion 322 and the water reservoir 31. The sealing portion 324 can be made of materials with good elasticity and sealing properties, such as rubber or silicone. Its function is to prevent washing water from leaking out from the connection between the mounting portion 322 and the inner wall of the water reservoir 31. During the operation of the dishwasher, the water reservoir 31 is filled with washing water. Without the sealing portion 324, the washing water may seep out along the gap between the mounting portion 322 and the inner wall, which would not only waste water resources but also potentially damage other parts of the dishwasher.

[0090] In one embodiment, such as Figure 6 As shown, there is a first predetermined distance D1 between the heating element 321 and the inner wall of the water reservoir 31, and this distance satisfies D1≥5mm. The first predetermined distance ensures that there is a certain space between the heating element 321 and the inner wall of the water reservoir 31, so that the heating element 321 is in a relatively suspended state.

[0091] Specifically, the mounting part 322 can be designed as a support structure of a certain length to fix the heating part 321 at a position not less than 5mm from the inner wall. For example, a protrusion or bracket can be provided on the mounting part 322 to form a sufficient gap between the heating part 321 and the inner wall.

[0092] If the distance between the heating element 321 and the inner wall is too small or even if it is in close contact with the inner wall, the heat generated by the heating element 321 will be concentrated at the contact point with the inner wall, easily leading to excessively high local temperatures in that area. Prolonged localized high temperatures may damage the inner wall of the water reservoir 31; for example, a plastic water reservoir 31 may experience deformation or accelerated aging. Maintaining a distance of D1 ≥ 5mm effectively disperses heat, prevents localized overheating of the inner wall, extends the lifespan of the water reservoir 31, and ensures the stability and reliability of the dishwasher.

[0093] In one embodiment, the water cup assembly 30 further includes a first filter 33.

[0094] The first filter element 33 is placed over the opening of the water storage cup 31, covering the heating element 321 inside the water storage cup 31. Exemplarily, the first filter element 33 is planar and has a first filter screen on it, used to initially filter the washing water entering the water storage cup 31, preventing larger residues and debris from entering the water storage cup 31 and avoiding damage to the heating element 321. It also ensures that the water in the water storage cup 31 is relatively clean, which is beneficial for subsequent heating and washing operations.

[0095] The first filter element 33 can be made of materials such as plastic or metal, and is formed by injection molding, stamping or other processes. During installation, the first filter element 33 can be fixed to the opening of the water storage cup 31 by snap-fit ​​or fastening to ensure that it is firmly installed and well sealed, preventing unfiltered washing water from directly entering the water storage cup 31.

[0096] Furthermore, the heating element 321 and the first filter element 33 have a second predetermined distance D2, and D2≥4mm.

[0097] During the process of washing water flowing into the water storage cup 31, the second set distance provides sufficient space for the water flow. The water can flow more smoothly through the filter screen of the first filter element 33 into the water storage cup 31, avoiding obstruction of water flow and affecting water intake efficiency due to the heating element 321 being too close to the first filter element 33. At the same time, the heating element 321 generates heat during operation. If it is too close to the first filter element 33, heat can easily accumulate between them, potentially damaging the first filter element 33 due to overheating; for example, the first filter element 33 made of plastic may deform. Maintaining a distance of D2 ≥ 4mm facilitates heat dissipation, protects the first filter element 33, and extends its service life.

[0098] In one embodiment, the water cup assembly 30 further includes a second filter element 34, which passes through the first filter element 33. The second filter element 34 has a residue collection chamber 3401, which communicates with the washing inner cavity 100. The heating element 321 is annular and surrounds the outer periphery of the residue collection chamber 3401.

[0099] For example, the second filter element 34 is cylindrical and can be manufactured through processes such as injection molding and welding to ensure the sealing and structural strength of the residue collection chamber 3401. During installation, the second filter element 34 is accurately inserted into the corresponding position of the first filter element 33 and communicates with the washing inner cavity 100. The heating element 321 can be fixed to the outer periphery of the residue collection chamber 3401 by means of brackets, clips, etc., forming a ring structure.

[0100] The residue collection chamber 3401 of the second filter element 34 can further collect and separate residues in the washing water. The washing water flowing in from the washing inner cavity 100 first passes through the first filter element 33 for preliminary filtration, and then through the second filter element 34 for secondary filtration. The residues are collected in the residue collection chamber 3401, which improves the filtration effect and makes the water entering the water storage cup 31 cleaner.

[0101] The heating element 321 is arranged around the outer periphery of the residue collection cavity 3401, which allows heat to be transferred more evenly to the entire water storage cup 31 when heating the water in the water storage cup 31. At the same time, this layout can make full use of the space around the residue collection cavity 3401, making full use of thermal energy and improving heating efficiency.

[0102] Furthermore, the heating element 321 and the outer peripheral wall of the residue collection chamber 3401 have a third predetermined distance D3, and D3≥5mm.

[0103] In this embodiment, if the heating element 321 is too close to the outer peripheral wall of the residue collection chamber 3401, the heat generated by the heating element 321 may raise the temperature inside the residue collection chamber 3401, causing the residue to dry and clump, which is not conducive to the collection and cleaning of the residue. Maintaining a distance of D3≥5mm can reduce the impact of the heating element 321 on the temperature of the residue collection chamber 3401, allowing the residue to enter and remain in the residue collection chamber 3401 more smoothly.

[0104] Meanwhile, the third setting distance allows for more contact space between the heating element 321 and the water in the water storage cup 31, which is beneficial for the uniform diffusion of heat in the water. This avoids the problem of localized excessively high water temperature caused by the heating element 321 being close to the outer peripheral wall of the residue collection chamber 3401, while the water temperature in other parts rises slowly, thereby improving the overall heating uniformity and efficiency.

[0105] Please see Figures 7 to 12 , Figure 7This is a schematic diagram of the structure of the water cup assembly 30 provided in this embodiment; Figure 8 This is another structural schematic diagram of the water cup assembly 30 provided in this embodiment; Figure 9 This is a schematic diagram of the structure of the isolation cover 35 provided in this embodiment; Figure 10 This is a schematic diagram of the internal structure of the first filter element 33 and the second filter element 34 provided in this embodiment; Figure 11 This is a schematic diagram of the internal structure of the separator 20, water cup assembly 30, drainage water passage 40, and washing water passage 50 provided in this embodiment. Figure 12 Another structural schematic diagram of the separator 20, water cup assembly 30, drainage water passage 40 and washing water passage 50 provided in this embodiment.

[0106] In one embodiment, the water cup assembly 30 further includes an isolation cover 35, which is movably disposed in the residue collection chamber 3401. The isolation cover 35 is composed of a top wall and a peripheral wall connected to the periphery of the top wall. The top wall has a first shielding portion 351, and the peripheral wall has a residue guide port 3501. The isolation cover 35 has two different states: a residue collection position and a residue separation position.

[0107] When the isolation cover 35 is in the sludge collection position, the sludge guide port 3501 is at least partially higher than the top surface of the second filter element 34, thus achieving communication between the sludge collection chamber 3401 and the washing chamber 100. During dishwasher operation, the sludge-containing washing water in the washing chamber 100 can smoothly flow into the sludge collection chamber 3401 through the sludge guide port 3501, achieving sludge collection.

[0108] When the isolation cover 35 is in the slag-separating position, the periphery of the first shielding part 351 abuts against the cavity wall of the slag collection chamber 3401, thereby separating the washing inner cavity 100 and the slag collection chamber 3401, preventing the odor generated by the slag in the slag collection chamber 3401 from entering the washing inner cavity 100.

[0109] The isolation cover 35 can be made of lightweight and durable materials such as plastic and molded by injection molding. To ensure that it can move within the residue collection chamber 3401, guide rails or grooves can be provided on the inner wall of the residue collection chamber 3401, and sliding blocks that cooperate with them can be provided on the peripheral wall of the isolation cover 35, so that the isolation cover 35 can move along a predetermined path to the residue collection position and the residue separation position.

[0110] At the sludge collection point, the open channel allows sludge to enter the sludge collection chamber 3401 quickly and smoothly, improving the efficiency of sludge collection. For example, during the dishwasher's washing cycle, a large amount of sludge can be collected in time, preventing sludge from accumulating in the washing chamber 100 and affecting the washing effect.

[0111] At the residue separation point, the isolation function prevents residue already collected in the residue collection chamber 3401 from flowing back into the washing chamber 100, ensuring the cleanliness of the washing water and thus improving the washing quality of the tableware. At the same time, it also prevents odors from residue in the residue collection chamber 3401 from entering the washing chamber 100.

[0112] In one embodiment, the periphery of the isolation cover 35 is also provided with a second shielding part 352, which is located below the slag guide port 3501 and abuts against the cavity wall of the residue collection chamber 3401. When the isolation cover 35 is in the slag-separating position, the second shielding part 352 will separate the residue collection chamber 3401 from the water storage cup 31.

[0113] In this embodiment, separating the residue collection chamber 3401 and the water storage cup 31 can prevent residue from entering the water storage cup 31 and avoid damage to components such as the heating element 32 inside the water storage cup 31. For example, residue may become entangled on the heating element 321, affecting heating efficiency or even causing short circuits and other malfunctions. The second shielding part 352 effectively avoids such problems.

[0114] At the same time, preventing residue from entering the water storage cup 31 keeps the water in the water storage cup 31 clean, which is beneficial for subsequent heating and washing operations, and improves the overall performance and stability of the dishwasher.

[0115] In one embodiment, the water cup assembly 30 further includes a drive mechanism 34, which is connected to the isolation cover 35 in a transmission manner. Its function is to drive the isolation cover 35 to move along the height direction of the second filter element 34 between the slag collection position and the slag separation position.

[0116] For example, the drive mechanism 34 includes a motor 341 and a drive screw 342. The motor 341 is mounted on the outside of the second filter element 34, and the drive screw 342 extends along the height direction of the second filter element 34. One end of the drive screw 342 is connected to the output end of the motor 341, and the other end extends into the residue collection chamber 3401 and is connected to the isolation cover 35.

[0117] The motor 341 is mounted on the outside of the second filter element 34 by bolts or other fixing methods to ensure a secure installation. The transmission screw 342 is connected to the output end of the motor 341 by a coupling or other means, and the end of the screw that extends into the residue collection chamber 3401 is threadedly connected to the isolation cover 35 to ensure the stability of the transmission.

[0118] When the dishwasher control system issues a command, the motor 341 starts, driving the transmission screw 342 to rotate. Since the transmission screw 342 is connected to the isolation cover 35, the rotational motion of the screw is converted into linear movement of the isolation cover 35 along the height direction of the second filter element 34, which can accurately drive the isolation cover 35 to the slag collection position and the slag separation position.

[0119] Please see Figure 1 , Figure 13 and Figure 14 , Figure 13 This is a partial internal structure diagram of a dishwasher provided in an embodiment of this application; Figure 14 This is a schematic diagram of another part of the internal structure of the dishwasher provided in an embodiment of this application.

[0120] In one embodiment, such as Figure 1 and Figure 13 As shown, the inner liner 10 has a drying air duct 103, which has a first air inlet 1031 and a first air outlet 1032, both of which are connected to the washing cavity 100. The function of the drying air duct 103 is to provide a specific channel for the circulation of air within the washing cavity 100, thereby achieving the drying function of the tableware. The first air inlet 1031 is the inlet for hot air to enter the drying air duct 103, and the first air outlet 1032 is the outlet for hot air to return to the washing cavity 100 after flowing through the drying air duct 103.

[0121] For example, the drying duct 103 can be integrally formed during the manufacturing process of the inner liner 10, for example, by using injection molding to directly fabricate the duct structure inside the inner liner 10. Alternatively, it can be installed later, using metal or plastic sheets to fabricate the duct components, and then fixing them to the inner liner 10 by welding, bonding, or snap-fitting to ensure the airtightness and structural strength of the duct.

[0122] During the drying stage of the dishwasher, air circulates within the washing chamber 100 through the drying duct 103. Hot air enters the washing chamber 100 from the water reservoir 31, contacts the surface of the dishes, removes moisture, and then flows from the first air inlet 1031 to the drying duct 103, finally returning to the washing chamber 100 from the first air outlet 1032 for reheating and recirculation. This circulating airflow accelerates the evaporation of moisture from the surface of the dishes, improving drying efficiency. Furthermore, the design of the drying duct 103 ensures more orderly airflow, preventing disordered air movement within the washing chamber 100 and guaranteeing uniform drying, ensuring that dishes in all locations are effectively dried.

[0123] Furthermore, the dishwasher also includes a first fan 61, which is located at one end of the drying duct 103 near the first air inlet 1031. The function of the first fan 61 is to provide power to cause air to flow within the drying duct 103.

[0124] The first fan 61 can be fixed to the drying air duct 103 near the first air inlet 1031 by bolts, clips, or other means. The fan motor 341 is connected to the dishwasher's control system, which can adjust the fan speed to control the airflow speed.

[0125] Furthermore, the first air inlet 1031 is located on the top wall of the inner liner 10, and the first air outlet 1032 is located on the side wall of the inner liner 10.

[0126] In this embodiment, the first air inlet 1031 is located on the top wall, which facilitates the intake of hot air from above the washing cavity 100, as hot air typically rises and accumulates at the top. The first air outlet 1032 is located on the side wall, allowing the hot air to better cover the tableware after being blown out from the side wall, creating good air convection. This arrangement ensures that the air fully contacts the tableware, improving the drying effect and efficiency. At the same time, it avoids hot air being blown directly onto a specific area, ensuring uniform drying.

[0127] In one embodiment, such as Figure 14 As shown, the inner liner 10 has a second air inlet 104 and a second air outlet 105, both of which connect the washing inner cavity 100 to the external environment. A second fan 62 is installed at the second air outlet 105, which provides power to facilitate the exchange of air between the washing inner cavity 100 and the external environment, thereby expelling humid air and introducing fresh air.

[0128] The second air inlet 104 and the second air outlet 105 can be directly opened on the side wall of the inner liner 10, and then corresponding ventilation ducts or ventilation grilles can be installed to ensure that air can enter and exit smoothly. The second fan 62 is fixed at the second air outlet 105 by bolts or other means and connected to the control system to realize the control of its operation.

[0129] During the drying process, the second fan 62 operates, expelling the humid air inside the washing chamber 100 to the external environment through the second air outlet 105, while fresh air enters the washing chamber 100 through the second air inlet 104. This air exchange effectively reduces the humidity inside the washing chamber 100, accelerating the drying speed of the dishes. Furthermore, introducing fresh air prevents odors from developing due to prolonged air circulation within the closed washing chamber 100, maintaining fresh air inside the washing chamber 100 and improving the user experience.

[0130] Furthermore, the second air inlet 104 and the second air outlet 105 are respectively located on opposite side walls of the inner liner 10.

[0131] The arrangement of the two opposing side walls allows air to enter from one side, pass through the entire washing chamber 100, and then exit from the other side, creating a wide-ranging air convection. This ensures that fresh air reaches every corner of the washing chamber 100, more effectively removing moisture from the surface of the dishes and further improving drying efficiency and uniformity. Simultaneously, this convection also helps to quickly expel humid air, keeping the environment inside the washing chamber 100 dry and clean.

[0132] 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: The inner liner has a washing cavity and a drying air duct. The drying air duct has a first air inlet and a first air outlet, both of which are connected to the washing cavity. as well as Water cup components, including: A water storage cup is located at the bottom of the washing cavity and communicates with the washing cavity; as well as A heating element extends into the water storage cup and is spaced apart from the inner wall of the water storage cup. The heating element is used to heat the washing water in the water storage cup. The heating element is also used to heat the air in the washing cavity to dry the tableware in the washing cavity.

2. The dishwasher according to claim 1, characterized in that, The heating element includes: The heating element is tubular and extends into the water storage cup; The mounting part connects to both ends of the heating element and is installed on the inner wall of the water storage cup; and The electrical connection part is electrically connected to both ends of the heating part and extends out of the water storage cup.

3. The dishwasher according to claim 2, characterized in that, The heating element further includes a sealing portion, which abuts against the mounting portion and the inner wall of the water storage cup.

4. The dishwasher according to claim 2, characterized in that, The heating element and the inner wall of the water storage cup are at a first set distance D1, and the first set distance D1 satisfies: D1≥5mm.

5. The dishwasher according to claim 2, characterized in that, The water cup assembly also includes a first filter element, which is disposed over the opening of the water storage cup to cover the heating element inside the water storage cup.

6. The dishwasher according to claim 5, characterized in that, The heating element and the first filter element have a second set distance, and the second set distance D2 satisfies: D2≥4mm.

7. The dishwasher according to claim 5, characterized in that, The water cup assembly further includes a second filter element, which passes through the first filter element and has a residue collection chamber that communicates with the washing inner cavity. The heating element is annular and surrounds the outer periphery of the residue collection cavity.

8. The dishwasher according to claim 7, characterized in that, The heating element and the outer peripheral wall of the residue collection chamber are at a third predetermined distance, and the third predetermined distance D3 satisfies: D3≥5mm.

9. The dishwasher according to claim 7, characterized in that, The water cup assembly also includes an isolation cover movably disposed in the residue collection chamber. The isolation cover includes a top wall and a peripheral wall connected to the periphery of the top wall. The top wall has a first shielding portion, and the peripheral wall has a residue guide port. The isolation cover has a slag collection position and a slag separation position. When the isolation cover is in the slag collection position, the slag guide port is at least partially higher than the top surface of the second filter element to connect the slag collection chamber and the washing chamber. When the isolation cover is in the slag-separating position, the periphery of the first shielding part abuts against the cavity wall of the slag collection chamber to separate the washing inner cavity from the slag collection chamber.

10. The dishwasher according to claim 9, characterized in that, The peripheral wall of the isolation cover also has a second shielding part, which is located below the slag guide port and abuts against the cavity wall of the residue collection chamber. When the isolation cover is in the slag-separating position, the second shielding part separates the residue collection chamber from the water storage cup.

11. The dishwasher according to claim 9, characterized in that, The water cup assembly also includes a drive mechanism, which is connected to the isolation cover and is used to drive the isolation cover to move along the height direction of the second filter element between the slag collection position and the slag separation position.

12. The dishwasher according to claim 1, characterized in that, It also includes a first fan, which is located at one end of the drying air duct near the first air inlet.

13. The dishwasher according to claim 1, characterized in that, The first air inlet is located on the top wall of the inner liner, and the first air outlet is located on the side wall of the inner liner.

14. The dishwasher according to claim 1, characterized in that, The inner liner also has a second air inlet and a second air outlet, both of which are connected to the washing inner cavity and the outside. A second fan is provided at the second air outlet.

15. The dishwasher according to claim 14, characterized in that, The second air inlet and the second air outlet are respectively located on the opposite side walls of the inner liner.

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