Air distribution damper, drying system for washing appliance, and washing appliance

Abstract

An air distribution damper, comprising a housing (10) and an air distribution block (20), wherein the housing (10) is provided with a chamber (11), an air inlet (12), a first outlet (131) and a second outlet (132), and the air distribution block (20) is arranged in the chamber (11). The air distribution block (20) has a first communicating state, a second communicating state and a shut-off state. In the first communicating state, the air distribution block (20) controls the first outlet (131) to communicate with the air inlet (12); in the second communicating state, the air distribution block (20) controls the second outlet (132) to communicate with the air inlet (12); in the shut-off state, the air distribution block (20) controls the first outlet (131) and the second outlet (132) to be disconnected from the air inlet (12), and the first outlet (131) and the second outlet (132) are in communication with each other. The air distribution damper can meet complex fluid delivery requirements. Further provided are a drying system having the air distribution damper, and a washing appliance having the drying system.

Description

Air distribution valve, washing machine drying system and washing machine

[0001] Cross-reference of related applications

[0002] This application claims priority to Chinese Patent Application No. 202520354767.8, filed on February 28, 2025, entitled "Air Distributor Valve, Washing Appliance Drying System and Washing Appliance", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of valve technology, and in particular to a distribution valve and a drying system for a washing appliance. Background Technology

[0004] Valves are commonly used in fluid transport to change the direction of fluid flow to meet the needs of different scenarios. However, these types of valves have limited functionality and cannot meet complex fluid transport requirements, so they need to be improved. Summary of the Invention

[0005] This application aims to at least partially address one of the technical problems in the related art. Therefore, one objective of this application is to propose an air distribution valve that can enrich the application scenarios of air distribution valves.

[0006] Another objective of this application is to provide a drying system for a washing appliance, including the aforementioned air distribution valve.

[0007] Another object of this application is to provide a washing appliance that includes the aforementioned drying system.

[0008] An air distribution valve according to an embodiment of this application includes: a housing and an air distribution block. The housing has a chamber, an air inlet, a first outlet, and a second outlet. The air distribution block is disposed in the chamber and has a first connected state, a second connected state, and a closed state. In the first connected state, the air distribution block controls the first outlet to connect to the air inlet. In the second connected state, the air distribution block controls the second outlet to connect to the air inlet. In the closed state, the air distribution block controls the first outlet and the second outlet to disconnect from the air inlet, and the first outlet and the second outlet are connected.

[0009] According to the embodiments of this application, the air distribution valve has a connected state and a closed state. In the connected state, the airflow entering the air inlet is controlled to flow to different outlets according to the requirements. In the closed state, the first outlet and the second outlet are connected and disconnected from the air inlet, which can enrich the application scenarios of the air distribution valve.

[0010] In addition, the air distribution valve according to the above embodiments of this application may also have the following additional technical features:

[0011] In some embodiments, the air distribution block includes a baffle plate for blocking and opening the first outlet and the second outlet.

[0012] In some embodiments, in the first connected state, the baffle opens the first outlet and closes the second outlet. In some embodiments, in the second connected state, the baffle opens the second outlet and closes the first outlet.

[0013] In some embodiments, the first outlet and the second outlet are distributed along the peripheral wall of the housing, and the baffle extends circumferentially along the housing.

[0014] In some embodiments, along the circumference of the air distribution block, the arc length of the baffle is s0, the maximum arc length of the first outlet is s1, and the maximum arc length of the second outlet is s2, wherein s0 > s1 and s0 > s2.

[0015] In some embodiments, the air distribution block includes: a baffle plate connected to the baffle segment, the baffle plate having a sealing portion, a first sub-hole, and a second sub-hole.

[0016] A partition plate is disposed in the chamber and separates an air inlet chamber and an air outlet chamber. The air inlet chamber is connected to the air inlet. A baffle plate is disposed in the air outlet chamber. The partition plate has a second connecting hole.

[0017] In some embodiments, during the first connected state, the first sub-hole is connected to the air inlet through the second connecting hole.

[0018] In some embodiments, in the second connected state, the second sub-hole is connected to the air inlet through the second connecting hole.

[0019] In some embodiments, in the cut-off state, the sealing portion closes the second communicating hole.

[0020] In some embodiments, the baffle is arranged perpendicular to the baffle plate.

[0021] In some embodiments, the air distribution block includes a rotating shaft that is perpendicularly connected to the baffle.

[0022] In some embodiments, the air inlet cavity and the air outlet cavity are arranged in a vertical direction.

[0023] In some embodiments, the partition plate and the baffle plate are stacked and connected in the vertical direction.

[0024] A drying system for a washing appliance according to an embodiment of this application includes: a water cup, a washing pump, the aforementioned air distribution valve and air blowing device, wherein the water cup has a first interface; the washing pump has a second interface; a first outlet is connected to the first interface, a second outlet is connected to the second interface; and the air blowing device is connected to the air inlet.

[0025] In some embodiments, during the first connected state, the air blowing device blows air toward the water cup.

[0026] In some embodiments, during the second connected state, the air blowing device blows air toward the washing pump.

[0027] In some embodiments, the first interface is the water outlet of the water cup, the second interface is the water inlet of the washing pump, the air distribution valve is disposed between the water outlet of the water cup and the water inlet of the washing pump, and in the cut-off state, the water outlet of the water cup is connected to the water inlet of the washing pump.

[0028] In some embodiments, the air blowing device includes a fan and an air inlet pipe, one end of which is connected to the fan and the other end blows air toward the air inlet, and the fan is an axial flow fan.

[0029] In some embodiments, a water distribution valve and a spray arm assembly are included, one end of the water distribution valve is connected to the washing pump and the other end is connected to the spray arm assembly, and in the second connected state, the air blowing device is connected to the water distribution valve.

[0030] In some embodiments, a heating element is included, the heating element being configured to heat the airflow blown by the air blowing device toward the water distribution valve.

[0031] The dishwasher according to an embodiment of this application includes the aforementioned drying system. Attached Figure Description

[0032] Figure 1 is a schematic diagram of the air distribution valve according to an embodiment of this application.

[0033] Figure 2 is a cross-sectional schematic diagram of the air distribution valve according to an embodiment of this application.

[0034] Figure 3 is a cross-sectional schematic diagram of the air distribution valve according to an embodiment of this application, wherein the air distribution block is in the first connected state.

[0035] Figure 4 is a cross-sectional schematic diagram of the air distribution valve according to an embodiment of this application, wherein the air distribution block is in the second connected state.

[0036] Figure 5 is a cross-sectional schematic diagram of the air distribution valve according to an embodiment of this application, wherein the air distribution block is in the closed state.

[0037] Figure 6 is a cross-sectional schematic diagram of the air distribution valve according to an embodiment of this application.

[0038] Figure 7 is an exploded schematic diagram of the air distribution valve according to an embodiment of this application.

[0039] Figure 8 is a schematic diagram of the drying system of a washing appliance according to an embodiment of this application.

[0040] Figure 9 is an exploded schematic diagram of the drying system of a washing appliance according to an embodiment of this application.

[0041] Figure label:

[0042] Drying system 1000, air distribution valve 100, outer shell 10, chamber 11, air inlet chamber 111, air outlet chamber 112, air inlet 12, first outlet 131, second outlet 132, shell body 141, sealing cover 142, air distribution block 20, baffle 21, baffle plate 22, first sub-hole 221, second sub-hole 222, sealing part 223, partition plate 23, second connecting hole 231, rotating shaft 24, water cup 200, first interface 210, washing pump 300, second interface 310, air blowing device 400, fan 410, air inlet pipe 420. Embodiments of the present invention

[0043] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0044] Valves are commonly used in fluid transportation to change the direction of airflow and meet the needs of different scenarios. In related technologies, valves are usually equipped with inlets and multiple outlets. By changing the position of the valve core, the fluid can flow from one outlet to another, making the application scenarios of valves relatively simple.

[0045] Referring to Figures 1 and 2, the air distribution valve 100 according to an embodiment of this application includes: a housing 10 and an air distribution block 20. The housing 10 has a chamber 11, an air inlet 12, a first outlet 131, and a second outlet 132. The air distribution block 20 is disposed in the chamber 11 and has a first connected state, a second connected state, and a closed state. In the first connected state, the air distribution block 20 controls the first outlet 131 to connect to the air inlet 12. In the second connected state, the air distribution block 20 controls the second outlet 132 to connect to the air inlet 12. In the closed state, the air distribution block 20 controls the first outlet 131 and the second outlet 132 to disconnect from the air inlet 12, and the first outlet 131 and the second outlet 132 are connected.

[0046] For example, the air inlet 12 may be connected to an air blowing device 400. The air blowing device 400 introduces airflow into the air distribution valve 100 through the air inlet 12 and controls the direction of the airflow through the air distribution block 20. In the first connected state, the air distribution block 20 controls the airflow blown by the air blowing device 400 to flow to the first outlet 131. In the second connected state, the air distribution block 20 controls the airflow blown by the air blowing device 400 to flow to the second outlet 132, so as to distribute the airflow to different outlets according to the actual usage requirements.

[0047] In addition, the air distribution block 20 also has a cut-off state. In the cut-off state, the first outlet 131 is disconnected from the air inlet 12, the second outlet 132 is disconnected from the air inlet 12, and the first outlet 131 and the second outlet 132 are connected. That is, in the cut-off state, the air distribution block 20 controls the air blowing device 400 to be disconnected from both the first outlet 131 and the second outlet 132. For example, the first outlet 131 and the second outlet 132 can be connected to different pipelines respectively. The fluid in the pipeline connected to the first outlet 131 can enter the pipeline connected to the second outlet 132 through the air distribution valve 100, or the fluid in the pipeline connected to the second outlet 132 can enter the pipeline connected to the first outlet 131 through the air distribution valve 100. The air distribution block 20 can control the fluid from entering the air inlet 12, which can enrich the application scenarios of the air distribution valve 100.

[0048] According to the embodiment of this application, the air distribution valve 100 has an interconnected state and a closed state. In the interconnected state, the airflow entering the air inlet 12 is controlled to flow to different outlets according to the requirements. In the closed state, the first outlet 131 and the second outlet 132 are connected and disconnected from the air inlet 12, which can enrich the application scenarios of the air distribution valve 100.

[0049] For example, the air distributor 100 can be used in washing appliances such as dishwashers, washing machines, or sink dishwashers. The washing appliance includes a water cup 200 and a washing pump 300. The water cup 200 can be connected to a first outlet 131, and the washing pump 300 can be connected to a second outlet 132. During normal washing, the air distributor 20 can be in a closed state, with the first outlet 131 and the second outlet 132 connected but disconnected from the air inlet 12. At this time, water from the water cup 200 can enter the washing pump 300 through the air distributor 100, so that the water from the water cup 200 can be delivered to the spray arm by the washing pump 300. After the washing program is completed, the air distributor 20 can switch to the first connected state or the second connected state. The two-way connection allows airflow to be introduced into the water cup 200 or the washing pump 300 through the air inlet 12. Understandably, after the washing appliance completes the washing operation, there will usually be residual water in the water cup 200 and the washing pump 300. Introducing airflow into the water cup 200 and the washing pump 300 through the air inlet 12 can use positive pressure airflow to drive away the residual water in the water cup 200 or the washing pump 300, and can accelerate the evaporation of the residual water in the water cup 200 and the washing pump 300, thereby drying the water cup 200 and the washing pump 300. This prevents residual moisture from breeding bacteria and producing odors after long-term storage, thus avoiding secondary pollution of tableware by the washing appliance.

[0050] For example, the washing appliance may include an air blowing device 400 connected to an air inlet 12, which blows air into the water cup 200 and the washing pump 300 through the air inlet 12. If there is residual water in the water cup 200 and the washing pump 300, the residual water can be discharged from them under the action of a positive pressure airflow. If there is no residual water in the water cup 200 and the washing pump 300, but there is residual water on the inner wall surface of the water cup 200 and the washing pump 300, the positive pressure airflow can accelerate the evaporation of the residual water on the inner wall surface, thereby achieving complete drying of the water cup 200 and the washing pump 300.

[0051] According to the embodiments of this application, the air distribution valve 100, when used in a washing appliance, can be used to control the direction of airflow in the first connected state and the second connected state. In the closed state, water from the water cup 200 can be introduced into the washing pump 300 through the air distribution valve 100. That is to say, the air distribution valve 100 can control the direction of gas and liquid flow by switching the state of the air distribution block 20, which simplifies the structure of the washing appliance. Of course, the air distribution valve 100 can also be used in other devices that need to control the direction of fluid flow.

[0052] The air distribution block 20 can be configured in different forms. For example, the air distribution block 20 may have a flow channel. In a first connected state, the flow channel connects the first outlet 131 and the air inlet 12. In a second connected state, the flow channel connects the second outlet 132 and the air inlet 12. In a closed state, the flow channel connects the first outlet 131 and the second outlet 132. Alternatively, the air distribution block 20 may include a baffle that can block and open the first outlet 131 and the second outlet 132. In the first connected state, the baffle opens the air inlet 12 and the first outlet 131 and blocks the second outlet 132. In the second connected state, the baffle opens the air inlet 12 and the second outlet 132 and blocks the first outlet 131. In the closed state, the baffle blocks the air inlet 12 and opens the first outlet 131 and the second outlet 132.

[0053] For example, the air distribution component may include a baffle 21, which can be used to block and open the first outlet 131 and the second outlet 132. The air distribution block 20 may be provided with a baffle 21. In the first connected state, rotating the baffle 21 opens the first outlet 131 and blocks the second outlet 132. In the second connected state, rotating the baffle 21 opens the second outlet 132 and blocks the first outlet 131. In the closed state, rotating the baffle 21 simultaneously opens the first outlet 131. 31 and second outlet 132; or, the baffle 21 may include a first sub-piece and a second sub-piece. For example, the first sub-piece cooperates with the first outlet 131 and the second sub-piece cooperates with the second outlet 132. In the closed state, the first sub-piece opens the first outlet 131 and the second sub-piece opens the second outlet 132. In the first connected state, the first sub-piece opens the first outlet 131 and the second sub-piece blocks the second outlet 132. In the second connected state, the first sub-piece blocks the first outlet 131 and the second sub-piece opens the second outlet 132.

[0054] Referring to Figure 2, in some embodiments of this application, the air distribution block 20 includes a baffle 21, which is used to block and open the first outlet 131 and the second outlet 132. By setting the baffle 21 to block and open the first outlet 131 and the second outlet 132, the structure of the air distribution block 20 is simplified, avoiding the need for a complex flow channel structure within the air distribution valve 100. For example, the baffle 21 may open the first outlet 131 and block the second outlet 132; or, the baffle 21 may open the second outlet 132 and block the first outlet 131; or, the baffle 21 may simultaneously open the first outlet 131 and the second outlet 132, meaning that in this case, the baffle 21 will not block either outlet.

[0055] In the first connected state, the baffle 21 opens the first outlet 131 and closes the second outlet 132. As shown in Figure 3, the baffle 21 blocks the second outlet 132 and opens the first outlet 131, allowing the airflow entering through the air inlet 12 to flow towards the first outlet 131. For example, after the washing appliance completes its washing operation, the air blowing device 400 operates. The airflow blown by the air blowing device 400 flows through the air inlet 12 towards the first outlet 131 and enters the water cup 200. This allows the air blowing device 400 to provide positive pressure airflow to the water cup 200, driving it to expel residual water and accelerating the evaporation of the remaining water, thus drying the water cup 200.

[0056] In the second connected state, the baffle 21 opens the second outlet 132 and closes the first outlet 131. Referring to Figure 4, the baffle 21 blocks the first outlet 131 and opens the second outlet 132, allowing the airflow entering through the air inlet 12 to flow towards the second outlet 132. For example, after the washing appliance completes its washing operation, the air blowing device 400 operates. The airflow blown by the air blowing device 400 flows through the air inlet 12 to the second outlet 132 and enters the washing pump 300. This allows the air blowing device 400 to provide positive pressure airflow to the washing pump 300, driving it to expel residual water and accelerating the evaporation of residual water in the pump chamber, thus drying the washing pump 300.

[0057] Referring to Figures 1 and 2, the first outlet 131 and the second outlet 132 are further distributed along the peripheral wall of the outer casing 10, and the baffle 21 extends circumferentially along the outer casing 10, making the structure of the air distribution valve 100 compact. For example, the first outlet 131 and the second outlet 132 can be blocked and opened by rotating the baffle 21, and since the baffle 21 extends circumferentially along the outer casing 10, rotating the baffle 21 facilitates flexible switching of the air distribution block 20 between the first connected state, the second connected state, and the closed state, simplifying the structure of the air distribution valve 100.

[0058] Referring to Figure 6, in some embodiments of this application, along the circumference of the air distribution block 20, the arc length of the baffle 21 is s0, the maximum arc length of the first outlet 131 is s1, and the maximum arc length of the second outlet 132 is s2, where s0 > s1 and s0 > s2. Exemplarily, the first outlet 131 and the second outlet 132 can be circular, elliptical, etc. Along the axial direction of the air distribution block 20 (direction AA in Figure 5), the first outlet 131 can have different arc lengths along the circumference of the air distribution block, and the second outlet 132 can have different arc lengths. The maximum arc length s1 of the first outlet 131 refers to the maximum arc length of the first outlet 131 in the circumferential direction of the air distribution block 20 in the projection along the axial direction of the air distribution block 20; the maximum arc length s2 of the second outlet 132 refers to the maximum arc length of the second outlet 132 in the circumferential direction of the air distribution block 20 in the projection along the axial direction of the air distribution block 20.

[0059] The first outlet 131 and the second outlet 132 can be configured with different shapes, or the first outlet 131 and the second outlet 132 can have different flow cross-sectional areas. Therefore, the maximum arc length s1 of the first outlet 131 and the maximum arc length s2 of the second outlet 132 can be the same or different. For example, s1 > s2; or s1 < s2; or s1 = s2. The arc length s0 of the baffle 21 is greater than the maximum arc length s1 of the first outlet 131 and greater than the maximum arc length s2 of the second outlet 132, so that the baffle 21 can stably cover the first outlet 131 and the second outlet 132. In the first connected state, the baffle 21 can block the second outlet 132, and in the second connected state, the baffle 21 can block the first outlet 131, thereby improving the working stability of the air distribution valve 100.

[0060] For example, with the rotation axis 24 of the air distribution block 20 as the center, the central angle of the area between the center of the first outlet 131 and the center of the second outlet 132 is 90°. For example, the air distribution valve 100 can be connected between the washing pump 300 and the water cup 200 to make full use of the space between the water cup 200 and the washing pump 300, so that the connection between the water cup 200 and the washing pump 300 is compact and space is not wasted.

[0061] Referring to Figures 5 and 7, in some embodiments of this application, the air distribution block 20 includes: a baffle 22 and a partition plate 23. The baffle 22 is connected to a baffle plate 21. The baffle 22 is provided with a sealing part 223, a first sub-hole 221 and a second sub-hole 222. The partition plate 23 is provided in the chamber 11 and separates the air inlet chamber 111 and the air outlet chamber 112. The air inlet chamber 111 is connected to the air inlet 12. The baffle plate 21 is provided in the air outlet chamber 112. The partition plate 23 is provided with a second connecting hole 231. In the first connecting state, the first sub-hole 221 is connected to the air inlet 12 through the second connecting hole 231. In the second connecting state, the second sub-hole 222 is connected to the air inlet 12 through the second connecting hole 231. In the closed state, the sealing part 223 closes the second connecting hole 231.

[0062] Specifically, the air inlet chamber 111 and the air outlet chamber 112 are separated by the partition plate 23. The air distribution block 20 is in a connected state in the first connected state and the second connected state. When the air distribution block 20 is in a connected state, the partition plate 23 cooperates with the baffle 22 to connect the air inlet chamber 111 to the air outlet chamber 112, and the baffle 21 is provided in the air outlet chamber 112. The baffle 21 controls the flow of the fluid entering the air inlet 12 to the first outlet 131 and the second outlet 132. When the air distribution block 20 is in a closed state, the partition plate 23 cooperates with the baffle 22 to separate the air inlet chamber 111 from the air outlet chamber 112, and the baffle 21 opens the first outlet 131 and the second outlet 132, so that the first outlet 131 and the second outlet 132 are in a connected state. The fluid flowing into the first outlet 131 and the second outlet 132 will not enter the air inlet chamber 111, thereby improving the working stability of the air distribution valve 100.

[0063] Referring to Figure 7, in some embodiments of this application, the baffle 21 and the baffle 22 are arranged perpendicularly. When the air distribution block 20 switches states, the baffle 21 and the baffle 22 rotate synchronously, while the position of the partition plate 23 remains relatively fixed, allowing the baffle 21, baffle 22, and partition plate 23 to cooperate and switch the air distribution block 20 to different states. For example, the air inlet 12 can be located above the outer casing 10, the partition plate 23 above the baffle 22, and the first outlet 131 and the second outlet 132 located on the peripheral wall of the outer casing 10; that is, the air inlet cavity 111 is located above the air outlet cavity 112. Alternatively, the air inlet 12 can be located below the outer casing 10, the partition plate 23 below the baffle 22, and the first outlet 131 and the second outlet 132 located on the peripheral wall of the outer casing 10; that is, the air inlet cavity 111 is located below the air outlet cavity 112. Among them, the baffle 22 and the baffle plate 21 are vertical, making the structure of the air distribution valve 100 more compact. When the baffle 22 and the baffle plate 21 rotate synchronously, the baffle 22 opens and covers the outlet. The baffle plate 21 and the partition plate 23 cooperate to connect and separate the air inlet chamber 111 and the air outlet chamber 112.

[0064] Referring to Figure 7, in some embodiments of this application, the air distribution block 20 includes a rotating shaft 24, which is vertically connected to the baffle 22, improving the connection stability between the rotating shaft 24 and the baffle 22. The rotation of the rotating shaft 24 can stably drive the baffle 22 to rotate. Exemplarily, the air distribution valve 100 may include a driving component, which is connected to the rotating shaft 24. The driving component drives the rotating shaft 24 to rotate, thereby driving the baffle 22 and the baffle plate 21 to rotate, cooperating with the partition plate 23 to switch the state of the air distribution block 20.

[0065] The rotating shaft 24 is vertically connected to the baffle 22, and the baffle plate 21 is vertically connected to the baffle 22. Specifically, the baffle plate 21 extends circumferentially along the outer shell 10, and the rotating shaft 24 is located inside the baffle plate 21. The baffle plate 21 can use the rotating shaft 24 as the rotation center, which facilitates the rotation of the baffle plate 21 and the baffle 22 through the rotating shaft 24, simplifying the structure of the air distribution valve 100 and improving the working stability of the air distribution valve 100.

[0066] Referring to Figure 5, in some embodiments of this application, the air inlet cavity 111 and the air outlet cavity 112 are arranged vertically. Specifically, the air inlet cavity 111 may be located below the air outlet cavity 112, or the air outlet cavity 112 may be located below the air inlet cavity 111. The air inlet 12 connects to the air inlet cavity 111, and the first outlet 131 and the second outlet 132 are located on the peripheral wall of the air outlet cavity 112. Referring to Figure 8, exemplarily, the air distribution valve 100 can be used in the drying system 1000 of a washing machine. The first outlet 131 connects to the water cup 200, and the second outlet 132 connects to the drain pump. The air inlet cavity 111 and the air outlet cavity 112 are arranged vertically, eliminating the need to change the existing layout of the water cup 200 and the washing pump 300 of the washing machine, reducing structural modifications to the washing machine, and facilitating the connection of the air inlet 12 to the air blowing device 400.

[0067] In conjunction with the foregoing, the first outlet 131 and the second outlet 132 may be distributed along the periphery of the outer casing 10, and the air inlet 12 may be located at the upper end of the outer casing 10 or at the lower end of the outer casing 10.

[0068] Referring to Figure 7, in some embodiments of this application, the partition plate 23 and the baffle plate 22 are stacked and connected in the vertical direction. The connection between the partition plate 23 and the baffle plate 22 through the surface-to-surface connection improves the connection stability between the partition plate 23 and the baffle plate 22, and facilitates the opening and closing of the channel between the air inlet cavity 111 and the air outlet cavity 112 when the baffle plate 22 is rotated.

[0069] The partition plate 23 is designed as a flexible component. When the air distribution block 20 switches states, the baffle plate 21 and the baffle 22 rotate synchronously, while the position of the partition plate 23 remains relatively fixed. This means that the partition plate 23 and the baffle 22 will rotate relative to each other. By making the partition plate 23 a flexible component, wear between the partition plate 23 and the baffle 22 can be reduced, and noise can be decreased. Furthermore, when the air distribution block 20 is in the closed state, the sealing performance can be improved, preventing fluid from entering the gap between the partition plate 23 and the baffle 22. This facilitates the cooperation of the partition plate 23 and the baffle 22 to separate the air inlet chamber 111 and the air outlet chamber 112. For example, the partition plate 23 can be a rubber component.

[0070] Referring to Figures 5 and 7, in some embodiments of this application, the outer casing 10 may include a casing body 141 and a sealing cover 142. The air inlet 12 may be located at one end of the casing body 141, the first outlet 131 and the second outlet 132 may be located on the peripheral wall of the casing body 141, and the sealing cover 142 may be located at the other end of the casing body 141, making the overall structure of the air distribution valve 100 compact. For example, the air distribution valve 100 can be used in a washing appliance. The first outlet 131 and the second outlet 132 are located on the peripheral wall of the casing body 141, which facilitates the connection of the first outlet 131 to the water cup 200 and the second outlet 132 to the washing pump 300. The air inlet 12 is connected to the air blowing device 400, making the overall structure of the washing appliance compact and improving space utilization. In addition, the sealing cover 142 can improve the sealing performance of the air distribution valve 100.

[0071] Referring to Figures 8 and 9, this application also proposes a drying system 1000 for a washing appliance, including: a water cup 200, a washing pump 300 and the aforementioned air distribution valve 100. The water cup 200 has a first interface 210, and the washing pump 300 has a second interface 310. The first outlet 131 is connected to the first interface 210, and the second outlet 132 is connected to the second interface 310.

[0072] The drying system 1000 may further include an air blowing device 400 connected to the air inlet 12. In a first connected state, the air blowing device 400 blows air toward the water cup 200, and in a second connected state, the air blowing device 400 blows air toward the washing pump 300. It is understood that after the washing appliance completes its washing operation, the water cup 200 and the washing pump 300 typically contain residual water. In the first connected state, the air blowing device 400 blows air into the water cup 200, providing a positive pressure airflow to drive away the residual water in the water cup 200, and accelerating the evaporation of the residual water in the water cup 200, thereby drying the water cup 200. In the second connected state, the air blowing device 400 blows air into the washing pump 300, providing positive pressure airflow to drive the residual water in the washing pump 300 away, and can accelerate the evaporation of residual water in the washing pump 300, thereby drying the washing pump 300. By setting the aforementioned air distribution valve 100, the direction of the airflow blown by the air blowing device 400 can be changed by switching the state of the air distribution block 20, which facilitates the air blowing device 400 to remove residual water in the water cup 200 and the washing pump 300, and to dry the water cup 200 and the washing pump 300, thus avoiding the accumulation of residual water, the growth of bacteria and the generation of odors.

[0073] For example, the washing appliance may include a drain pump, and the water cup 200 may be provided with a drain outlet. The drain pump is connected to the drain outlet, and the drain outlet and the air inlet 12 are distributed on opposite sides of the main body of the water cup 200. Specifically, after completing a washing cycle, the washing appliance can drain the water in the water cup 200 by the drain pump. The air inlet 12 and the drain outlet are located on opposite sides of the main body of the water cup 200, which facilitates the blowing device 400 to blow the residual water in the water cup 200 toward the drain outlet, thereby improving the drying efficiency of the water cup 200. The washing pump 300 can be equipped with a drain outlet. The air blowing device 400 accelerates the discharge of fluid from the drain outlet by providing positive pressure airflow into the washing pump 300, which facilitates the drainage of residual water in the washing pump 300 and improves the drying efficiency of the washing pump 300. The drain outlet can be connected to an external drain pipe and discharged directly to the outside of the washing appliance; or, the drain outlet can be connected to a water cup 200 through a bypass, that is, the water discharged from the drain outlet can enter the water cup 200 and be discharged to the outside of the washing appliance through the drainage system of the water cup 200.

[0074] Furthermore, the first interface 210 is the water outlet of the water cup 200, and the second interface 310 is the water inlet of the washing pump 300. The air distribution valve 100 is located between the water outlet of the water cup 200 and the water inlet of the washing pump 300. In the off state, the water outlet of the water cup 200 is connected to the water inlet of the washing pump 300. Specifically, in the off state, the washing pump 300 is working, and the water from the water cup 200 enters the washing pump 300 through the air distribution valve 100 and is delivered to the spray arm. Understandably, in existing washing appliances, the outlet of the water cup 200 is usually connected to the inlet of the washing pump 300 via a pipe. In the drying system 1000 of this application embodiment, the air distribution valve 100 is located between the outlet of the water cup 200 and the inlet of the washing pump 300. Therefore, it is not necessary to modify the existing structure and layout of the washing pump 300 of the water cup 200. By connecting the air distribution valve 100 to the water cup 200 and the washing pump 300 and placing it between the outlet of the water cup 200 and the inlet of the washing pump 300, the space between the existing water cup 200 and the washing pump 300 can be directly utilized. In other words, the air distribution valve 100 does not occupy the space of the washing appliance, making the structure of the drying system 1000 compact.

[0075] The air blowing device 400 is used to blow air into the water cup 200 and the washing pump 300, providing a positive pressure airflow to the water cup 200 and the washing pump 300. For example, the air blowing device 400 may include an air pump; or, the air blowing device 400 may include a fan 410, etc.

[0076] Referring to Figure 9, in some embodiments of this application, the air blowing device 400 includes a fan 410 and an air inlet pipe 420. One end of the air inlet pipe 420 is connected to the fan 410, and the other end is connected to blow air towards the air inlet 12. The airflow generated by the fan 410 enters the air inlet 12 through the air inlet pipe 420, improving the stability of the airflow. Furthermore, the air inlet pipe 420 connecting the fan 410 and the air inlet 12 optimizes the installation position of the fan 410 and improves the space utilization of the washing appliance. For example, the air inlet pipe 420 can be configured as a rubber hose.

[0077] Among them, the blower 410 is an axial flow blower 410, which makes the structure of the air blowing device 400 compact and can provide a larger air volume. This facilitates the air blowing device 400 to provide a high-speed airflow to the water cup 200 and the washing pump 300, quickly remove water and residual water from the water cup 200 and the washing pump 300, and accelerate the evaporation efficiency of residual water in the water cup 200 and the washing pump 300, thereby improving the drying efficiency of the water cup 200 and the washing pump 300.

[0078] In some embodiments of this application, the drying system 1000 includes a water distribution valve and a spray arm assembly. One end of the water distribution valve is connected to the washing pump 300, and the other end is connected to the spray arm assembly. In a second connected state, the air blowing device 400 is connected to the water distribution valve. Specifically, during the washing process, the washing pump 300 operates, distributing water to the spray arm assembly via the water distribution valve to clean the tableware. After the washing program ends, the air distribution block 20 of the air distribution valve can be switched to the second connected state, allowing the air blowing device 400 to connect to the water distribution valve via the washing pump 300. The air blowing device 400 blows air to the second outlet 132. The airflow enters the water distribution valve via the washing pump 300 and then enters the spray arm assembly. The air blowing device 400 provides positive pressure airflow into the spray arm assembly to remove residual water and prevent residual water from accumulating in the spray arm assembly and breeding bacteria. At the same time, the airflow blown out by the spray arm assembly can also accelerate the evaporation of moisture on the surface of the tableware, facilitating the drying of the tableware. In other words, when the air blowing device 400 is working, it can dry the washing pump 300, the spray arm assembly, and the tableware, reducing the impact of residual water from the washing appliance on the tableware.

[0079] For example, the spray arm assembly may include an upper spray arm, a middle spray arm, and a lower spray arm. Those skilled in the art will understand that, in different washing stages of the washing appliance, water flow can be distributed to different spray arms according to actual needs through a water distribution valve. The air blowing device 400 blows air to the water distribution valve, which can precisely control the direction of airflow. For example, the water distribution valve can control the airflow to flow to the upper spray arm first, drying the upper spray arm and the tableware near the upper spray arm. At this time, the water in the upper spray arm and on the tableware can enter the water cup 200 under the action of gravity. Then, the water distribution valve controls the airflow to flow to the middle spray arm, and finally to the lower spray arm, which can improve the drying effect on the washing appliance.

[0080] Furthermore, the drying system 1000 includes a heating component configured to heat the airflow blown by the air blowing device 400 toward the water distribution valve, so that the spray arm assembly can blow out hot airflow. On the one hand, this can accelerate the drying efficiency of the spray arm assembly, and on the other hand, the hot airflow blown out by the spray arm assembly can accelerate the evaporation of moisture on the surface of the tableware, facilitating rapid drying of the tableware and maintaining a dry environment inside the washing appliance. For example, the heating component can be connected to the air blowing device 400. For instance, the air blowing device 400 may include a fan 410 and an air inlet pipe 420, wherein the heating component may be located downstream of the fan 410, or the heating component may be located in the air inlet pipe 420, so as to heat the airflow blown out by the fan 410 through the heating component.

[0081] The washing appliance according to the embodiments of this application includes the aforementioned drying system 1000. By providing the aforementioned drying system 1000, the water cup 200 and the washing pump 300 can be dried, preventing residual water from accumulating in the washing pump 300 and the water cup 200, thus preventing the growth of bacteria and the generation of odors, and maintaining a good working environment for the washing appliance.

[0082] For example, the washing appliance can be a countertop dishwasher, a sink dishwasher, a built-in dishwasher, etc.

[0083] The various embodiments / implementations of this application can be combined with each other without creating contradictions.

[0084] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this application.

[0085] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0086] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0087] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0088] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0089] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. An air distribution valve, comprising: The housing has a chamber, an air inlet, a first outlet, and a second outlet; The air distribution block is disposed in the chamber and has a first connected state, a second connected state, and a cut-off state. In the first connected state, the air distribution block controls the first outlet to connect to the air inlet. In the second connected state, the air distribution block controls the second outlet to connect to the air inlet. In the cut-off state, the air distribution block controls the first outlet and the second outlet to disconnect from the air inlet, and the first outlet and the second outlet are connected.

2. The air distribution valve according to claim 1, wherein, The air distribution block includes a baffle plate, which is used to block and open the first outlet and the second outlet. Wherein, in the first connected state, the baffle opens the first outlet and closes the second outlet; and / or, in the second connected state, the baffle opens the second outlet and closes the first outlet.

3. The air distribution valve according to claim 2, wherein, The first outlet and the second outlet are distributed along the peripheral wall of the housing, and the baffle extends circumferentially along the housing.

4. The air distribution valve according to claim 2 or 3, wherein, Along the circumference of the air distribution block, the arc length of the baffle is s0, the maximum arc length of the first outlet is s1, and the maximum arc length of the second outlet is s2, wherein s0 > s1 and s0 > s2.

5. The air distribution valve according to any one of claims 2-4, wherein, The air distribution block includes: A baffle plate, connected to the baffle piece, is provided with a sealing portion, a first sub-hole, and a second sub-hole. A partition plate is disposed in the chamber and separates an air inlet chamber and an air outlet chamber. The air inlet chamber is connected to the air inlet. A baffle plate is disposed in the air outlet chamber. The partition plate has a second connecting hole. In the first connected state, the first sub-hole is connected to the air inlet through the second connected hole; in the second connected state, the second sub-hole is connected to the air inlet through the second connected hole; in the cut-off state, the sealing part closes the second connected hole.

6. The air distribution valve according to claim 5, wherein, The baffle is arranged perpendicularly to the baffle plate; And / or, the air distribution block includes a rotating shaft that is perpendicularly connected to the baffle.

7. The air distribution valve according to claim 5 or 6, wherein, The air inlet cavity and the air outlet cavity are arranged in a vertical direction; and / or, the partition plate and the baffle are stacked and connected in a vertical direction.

8. A drying system for a washing appliance, comprising: A water cup having a first interface; Washing pump, the washing pump having a second interface ； The air distribution valve according to any one of claims 1-7, wherein the first outlet is connected to the first interface, and the second outlet is connected to the second interface; An air blowing device is connected to the air inlet. In the first connected state, the air blowing device blows air toward the water cup, and in the second connected state, the air blowing device blows air toward the washing pump.

9. The drying system for a washing appliance according to claim 8, wherein, The first interface is the water outlet of the water cup, the second interface is the water inlet of the washing pump, and the air distribution valve is located between the water outlet of the water cup and the water inlet of the washing pump. In the closed state, the water outlet of the water cup is connected to the water inlet of the washing pump.

10. The drying system for a washing appliance according to claim 8 or 9, wherein, The air blowing device includes a fan and an air inlet pipe. One end of the air inlet pipe is connected to the fan, and the other end blows air towards the air inlet. The fan is an axial flow fan.

11. The drying system for a washing appliance according to any one of claims 8-10, wherein, It includes a water distribution valve and a spray arm assembly. One end of the water distribution valve is connected to the washing pump, and the other end is connected to the spray arm assembly. In the second connected state, the air blowing device is connected to the water distribution valve.

12. The drying system for a washing appliance according to claim 11, wherein, It includes a heating element configured to heat the airflow blown by the air blowing device toward the water distribution valve.

13. A washing appliance comprising the drying system according to any one of claims 8-12.

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