Air distribution device and dish washing machine

Abstract

The air distribution device comprises a valve shell and a valve element, an air distribution cavity is formed in the valve shell, the valve shell is provided with an air inlet and a plurality of air outlets, the valve element is rotatably arranged in the air distribution cavity so that the air inlet can be opened and closed, the air outlets can be opened and closed, the valve element has a communicating position and a cut-off position, and the cut-off position is located at the communicating position. The valve element is suitable for opening the air inlet to enable the air inlet to be communicated with the air distribution cavity and opening at least one of the multiple air outlets and closing the remaining air outlets at the cut-off position, and the valve element is suitable for closing the air inlet to enable the air inlet to be separated from the air distribution cavity and opening at least two of the multiple air outlets and closing the remaining air outlets at the cut-off position.

Description

Technical Field

[0001] This application relates to the field of washing equipment technology, and in particular to an air distribution device and a dishwasher. Background Technology

[0002] 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. Utility Model Content

[0003] This application aims to at least partially solve one of the technical problems in the related art. To this end, this application proposes a solution.

[0004] To achieve the above objectives, this application discloses an air distribution device, which includes:

[0005] A valve housing, wherein an air distribution chamber is formed inside the valve housing, and the valve housing is provided with an air inlet and multiple air outlets;

[0006] The valve core is rotatably disposed in the air distribution chamber to open and close the air inlet and the air outlet. The valve core has a connecting position and a closing position.

[0007] In the connected position, the valve core is adapted to open the air inlet to connect the air inlet and the air distribution chamber, and simultaneously open at least one of the plurality of air outlets and close the remaining air outlets;

[0008] In the cut-off position, the valve core is adapted to close the air inlet to isolate the air inlet from the air distribution chamber, and simultaneously open at least two of the plurality of air outlets and close the remaining air outlets.

[0009] In some embodiments of this application, the valve core includes a first blocking part and a second blocking part. The first blocking part can open and close the air inlet, and the second blocking part can open and close the air outlet. The first blocking part and the second blocking part are adapted to rotate synchronously when the valve core rotates.

[0010] In some embodiments of this application, the plurality of air outlets include a first air outlet, a second air outlet, and a third air outlet;

[0011] The connection position includes a first connection position, in which the valve core is adapted to open the first air outlet and close the second air outlet and the third air outlet when the air inlet is opened; and / or, the connection position includes a second connection position, in which the valve core is adapted to open the first air outlet and the second air outlet and close the third air outlet when the air inlet is opened; and / or, the connection position includes a third connection position, in which the valve core is adapted to open the third air outlet and close the first air outlet and the second air outlet when the air inlet is opened.

[0012] In some embodiments of this application, at the cut-off position, the valve core is adapted to open the second air outlet and the third air outlet and close the first air outlet when the air inlet is closed.

[0013] In some embodiments of this application, the valve core further includes a first connecting hole, which is coplanar with the first shielding portion. The first connecting hole is adapted to connect the air distribution chamber and the air inlet when the first shielding portion and the air inlet are misaligned.

[0014] In some embodiments of this application, the air inlet is disposed at one end of the valve housing, a plurality of air outlets are arranged sequentially along the circumferential direction of the valve housing, the second shielding portion extends along the circumferential direction of the valve core, and the first shielding portion and the second shielding portion are arranged perpendicularly.

[0015] In some embodiments of this application, the first shielding part is a planar structure;

[0016] And / or, the second shielding part is an arc-shaped structure.

[0017] In some embodiments of this application, along the circumference of the valve core, the arc length of the second shielding portion is s0, and the maximum arc length of the air outlet is s1, wherein s0 > s1.

[0018] In some embodiments of this application, the plurality of air outlets include a first air outlet, a second air outlet, and a third air outlet;

[0019] On the same plane, the line connecting the center of the first air outlet and the rotation axis of the valve core is the first line, the line connecting the center of the second air outlet and the rotation axis of the valve core is the second line, and the line connecting the center of the third air outlet and the rotation axis of the valve core is the third line.

[0020] The included angle between the first line and the second line is α1, the included angle between the second line and the third line is α2, the included angle between the first line and the third line is α3, and the included angle between the two opposite sides of the second blocking part along the circumferential direction of the valve core is α4, satisfying α4>α1, α4>α2, α4≤α3.

[0021] In some embodiments of this application, the valve core includes a first diverter and a second diverter connected to each other. The first diverter includes a first baffle extending in the circumferential direction of the valve core, and the second diverter includes a second baffle extending in the circumferential direction of the valve core. The first baffle and the second baffle are joined together to form the second shielding portion.

[0022] In some embodiments of this application, the first shielding portion is disposed on the end face of the first diverter near the air inlet, and the first shielding portion is perpendicular to the first baffle.

[0023] In some embodiments of this application, the second diverter is further provided with a second connecting hole, which communicates with the air distribution chamber. The second connecting hole is adapted to connect the air distribution chamber and the corresponding air outlet when the first baffle, the second baffle and the corresponding air outlet are misaligned.

[0024] In some embodiments of this application, the first diverter is provided with a socket, the second diverter is provided with a pin, and the socket and the pin are connected along the axial direction of the valve core;

[0025] And / or, the first diverter and the second diverter are snap-fitted together.

[0026] In some embodiments of this application, the second diverter is provided with a rotating shaft on the side away from the air inlet, and the rotating shaft is used to connect to the drive shaft of the motor to drive the valve core to rotate.

[0027] In some embodiments of this application, the valve housing includes a housing body and a sealing cover. One end of the housing body is open, and the sealing cover is disposed at one end of the housing body to enclose the air distribution cavity with the housing body. The housing body is provided with the air inlet, and the air inlet is disposed at the other end of the housing body.

[0028] In some embodiments of this application, the valve core includes an elastic arm adapted to abut against the sealing cap and elastically deform.

[0029] In some embodiments of this application, the air distribution device further includes a motor and a drive shaft, the drive shaft passing through the sealing cover to connect to the valve core, and the motor being adapted to drive the valve core to rotate via the drive shaft.

[0030] A second aspect of this application discloses a dishwasher that includes the aforementioned air distribution device.

[0031] In some embodiments of this application, the dishwasher further includes a water cup, a washing pump, and a blower, wherein the water cup is provided with a water storage chamber and a drain channel;

[0032] The first air outlet of the valve housing is adapted to communicate with the drainage channel, the second air outlet of the valve housing is adapted to communicate with the water storage chamber, the third air outlet of the valve housing is adapted to communicate with the inlet of the washing pump, and the blower is adapted to communicate with the air inlet.

[0033] In some embodiments of this application, the 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 toward the air distribution device, and the fan is an axial flow fan.

[0034] Other advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description or may be learned by practice of this application. Attached Figure Description

[0035] 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 designs can be obtained based on the structures shown in these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of a partial structure of the dishwasher in some embodiments;

[0037] Figure 2 This is a partial structural diagram of the dishwasher in some embodiments (spray device omitted);

[0038] Figure 3 This is a schematic diagram of the air distribution device in some embodiments;

[0039] Figure 4 Exploded views of the air distribution device in some embodiments;

[0040] Figure 5 This is a schematic diagram of the shell body in some embodiments;

[0041] Figure 6 This is a cross-sectional view of the shell body in some embodiments;

[0042] Figure 7 The images shown are sectional views (top view) of the shell body in some embodiments.

[0043] Figure 8This is a schematic diagram of the valve core in some embodiments;

[0044] Figure 9 Schematic diagram of valve core in some embodiments (view and perspective) Figure 8 different);

[0045] Figure 10 Schematic diagram of valve core in some embodiments (view and perspective) Figure 8 , Figure 9 different);

[0046] Figure 11 The following are cross-sectional views (top view) of the valve core in some embodiments;

[0047] Figure 12 Here are exploded views of the valve core in some embodiments;

[0048] Figure 13 A cross-sectional view of the air distribution device in some embodiments (in the first connected position, with the air inlet open, the first air outlet open, the second air outlet closed, and the third air outlet closed);

[0049] Figure 14 This is a cross-sectional view of the air distribution device from another perspective in some embodiments (in the first connected position, with the air inlet open, the first air outlet open, the second air outlet closed, and the third air outlet closed);

[0050] Figure 15 A cross-sectional view of the air distribution device in some embodiments (in the second communication position, with the air inlet open, the first air outlet open, the second air outlet open, and the third air outlet closed);

[0051] Figure 16 This is a cross-sectional view of the air distribution device from another perspective in some embodiments (in the second connected position, with the air inlet open, the first air outlet open, the second air outlet open, and the third air outlet closed);

[0052] Figure 17 A cross-sectional view of the air distribution device in some embodiments (in the third communication position, with the air inlet open, the first air outlet closed, the second air outlet closed, and the third air outlet open);

[0053] Figure 18 This is a cross-sectional view of the air distribution device from another perspective in some embodiments (in the third connected position, with the air inlet open, the first air outlet closed, the second air outlet closed, and the third air outlet open);

[0054] Figure 19 A cross-sectional view of the air distribution device in some embodiments (in the cut-off position, with the air inlet closed, the first air outlet closed, the second air outlet open, and the third air outlet open);

[0055] Figure 20This is a cross-sectional view of the air distribution device from another perspective in some embodiments (in the cut-off position, with the air inlet closed, the first air outlet closed, the second air outlet open, and the third air outlet open).

[0056] Explanation of icon numbers:

[0057] Air distribution device 10, water cup 20, water storage chamber 21, drain pump 30, washing pump 40, spray device 50, blower device 60, air inlet pipe 61, valve shell 1000, shell body 1100, air inlet 1110, air outlet 1120, first air outlet 1121, second air outlet 1122, third air outlet 1123, air distribution chamber 1130, sealing cover 1200, valve core 2000, first diverter 2100, first baffle 2110, second diverter 2200, second baffle 2210, rotating shaft 2220, first shield 2310, second shield 2320, first connecting hole 2410, second connecting hole 2420, partition rib 2500, elastic arm 2600, insertion hole 2710, pin 2720, drive shaft 3000.

[0058] 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

[0059] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0060] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0061] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean 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.

[0062] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0063] The first invention disclosed in this application is a wind distribution device 10, combined with... Figures 3 to 6 As shown, in some embodiments, the air distribution device 10 includes a valve housing 1000 and a valve core 2000. An air distribution chamber 1130 is formed within the valve housing 1000. The valve housing 1000 has an air inlet 1110 and multiple air outlets 1120. In this document, "multiple" means three or more, and can be three, four, five, or more. The valve core 2000 is rotatably disposed within the air distribution chamber 1130 to open and close (meaning it has both opening and closing functions, hereinafter the same) the air inlet 1110 and the air outlets 1120. The valve core 2000 has a connected position and a closed position. In the connected position, the valve core 2000 is adapted to open the air inlet 1110 to connect the air inlet 1110 and the air distribution chamber 1130, and simultaneously open at least one of the multiple air outlets 1120 and close the remaining air outlets 1120. In the closed position, the valve core 2000 is adapted to close the air inlet 1110 to isolate the air inlet 1110 and the air distribution chamber 1130, and simultaneously open at least two of the multiple air outlets 1120 and close the remaining air outlets 1120. With this configuration, the air distribution device 10 can have multiple conduction states, which is suitable for complex fluid transportation needs.

[0064] Specifically, the air distribution device 10 is used in scenarios where airflow needs to be distributed. The air inlet 1110 is suitable for connection with a device that provides airflow, such as a blower 60. The blower 60 can pump airflow into the air inlet 1110. Generally, the blower 60 includes fluid machinery, which provides the power required for pumping the airflow. The fluid machinery includes, but is not limited to, a fan. When the valve core 2000 opens the air inlet 1110, the airflow can enter the air distribution chamber 1130 from the air inlet 1110 and then exit from the already opened air outlet 1120 to reach the target area. When the valve core 2000 closes the air inlet 1110, airflow cannot enter the air distribution chamber 1130 from the air inlet 1110, or in other words, the blowing device 60 does not need to work at this time. By closing the air inlet 1110, the passage to the blowing device 60 is interrupted. In this state, at least two air outlets 1120 are open, and these two air outlets 1120 are connected to form a passage, thus forming part of the fluid transmission path. It can be understood that airflow entering through the air inlet 1110 is considered to have entered the air distribution chamber 1130 as long as it is located in the air distribution chamber 1130, whether directly or indirectly located in the air distribution chamber 1130.

[0065] Since there are multiple air outlets 1120, there are multiple states in which the valve core 2000 opens at least one of the multiple air outlets 1120 and closes the remaining air outlets 1120 when it opens the air inlet 1110. For example, when the valve core 2000 opens the air inlet 1110, it can open one of the multiple air outlets 1120, or it can open two of the multiple air outlets 1120, or it can open three or more of the multiple air outlets 1120. It can be understood that when the valve core 2000 opens the air inlet 1110 and opens all the air outlets 1120, there are no air outlets 1120 left that need to be closed. Similarly, the valve core 2000 can have multiple states: when closing the air inlet 1110, it can open at least two of the multiple air outlets 1120 and close the remaining air outlets 1120. For example, when closing the air inlet 1110, the valve core 2000 can open two of the multiple air outlets 1120, three of the multiple air outlets 1120, or four or more of the multiple air outlets 1120. When the valve core 2000 closes the air inlet 1110 and opens all the air outlets 1120, there are no remaining air outlets 1120 that need to be closed. Different numbers of air outlets 1120 can be set according to different application scenarios to create multiple conduction states.

[0066] Combination Figures 1 to 6As shown, the following description will be further illustrated using an example of an air distribution device 10 applied to a dishwasher, or a dishwasher including an air distribution device 10. The dishwasher includes an inner tub (not shown in the figure), a dish rack (not shown in the figure), a water cup 20, a spray device 50, a washing pump 40, a drain pump 30, an air distribution device 10, and a blower device 60.

[0067] The inner tub has a washing chamber (i.e., the internal space of the inner tub) and an opening that communicates with the washing chamber. The dishwasher door can move between an open position and a closed position. When the door moves to the closed position, it closes the opening; when the door moves to the open position, it opens the opening. Generally, the door is designed to rotate from top to bottom to open the opening and from bottom to top to close the opening.

[0068] The dish rack is installed inside the dishwasher and slides in and out of the washing chamber for easy loading and unloading of dishes. The rack is typically perforated to allow water to flow through and rinse the dishes. Dishware should be understood as any item that can be washed in a dishwasher, including but not limited to bowls, plates, cups, pots, knives, forks, and chopsticks.

[0069] The spray device 50 is used to spray water into the washing chamber, and the water stream is directed at the dishes to rinse and clean them. That is, during the dishwasher's washing cycle, water is sprayed through the spray device 50 to clean the dishes. The spray device 50 can be of various types; it can be movable, moving while spraying water to enhance the rinsing of the dishes. Alternatively, it can be fixed, spraying water at a fixed angle. Optionally, the spray device 50 includes spray arms that spray water. The number of spray arms can be one, two, three, or more. For example, in a top-to-bottom direction, the spray arms may include an upper spray arm and a lower spray arm, or they may include an upper spray arm, a middle spray arm, and a lower spray arm. The spray arms can rotate synchronously while spraying water. Optionally, the spray device 50 includes fixed nozzles that spray water at a specific angle.

[0070] The spraying device 50 sprays water through the operation of the washing pump 40, which is a key component for realizing the washing cycle. The washing pump 40 is connected to the water cup 20, which is located at the bottom of the inner tank for temporary water collection and storage. The washing pump 40 draws water from the water cup 20 and delivers it to the spraying device 50. The water flows out from the spraying device 50, rinses the tableware, falls back to the bottom of the inner tank, and then flows back into the water cup 20, where it is drawn in by the washing pump 40 again. This forms a washing cycle to rinse and clean the tableware.

[0071] After the dishwasher finishes its washing cycle, it needs to drain the water. This is achieved by the operation of the drain pump 30, which is connected to the water cup 20. When the drain pump 30 starts, it drains the water from the water cup 20 and discharges it into the municipal sewer through the drain pipe.

[0072] After the dishwasher drains, residual water can easily form in the water cup 20, drain pump 30, and washing pump 40. In this embodiment, the water cup 20 is connected to one of the air outlets 1120, the drain pump 30 is connected to one of the air outlets 1120, and the washing pump 40 is connected to one of the air outlets 1120. When the valve core 2000 opens the air inlet 1110, the corresponding air outlet 1120 is opened by controlling the air inlet 60. The airflow pumped by the blower 60 enters the air distribution chamber 1130 from the air inlet 1110 and is discharged from the corresponding air outlet 1120 to flow to the water cup 20, drain pump 30, and / or washing pump 40. Since the washing pump 40 is connected to the spray device 50, the airflow to the washing pump 40 continues to flow to the spray device 50. This achieves the drying of the water cup 20, drain pump 30, washing pump 40, and / or spray device 50, and avoids the growth of bacteria in the residual water. When the valve core 2000 closes the air inlet 1110, a passage can be formed by controlling at least two air outlets 1120 to open. For example, the air outlet 1122 connected to the water cup 20 and the air outlet 1123 connected to the washing pump 40 can be opened, while the air outlet 1120 connected to the drain pump 30 can be closed. In this way, the air outlet 1122 connected to the water cup 20 and the air outlet 1123 connected to the washing pump 40 can form part of the washing cycle passage.

[0073] Combination Figures 3 to 12 As shown, in some embodiments, the valve core 2000 includes a first blocking portion 2310 and a second blocking portion 2320. The first blocking portion 2310 can open and close the air inlet 1110, and the second blocking portion 2320 can open and close the air outlet 1120. The first blocking portion 2310 and the second blocking portion 2320 are adapted to rotate synchronously when the valve core 2000 rotates.

[0074] Specifically, the opening and closing of the air inlet 1110 is achieved through the first blocking part 2310. The valve core 2000 includes the first blocking part 2310. The valve core 2000 is adapted to open the air inlet 1110 when it is rotated to the point where the first blocking part 2310 is misaligned with the air inlet 1110, and to close the air inlet 1110 when it is rotated to the point where the first blocking part 2310 is opposite to the air inlet 1110. Based on the rotatable setting of the valve core 2000, the opening and closing of the air inlet 1110 can be easily achieved by setting the first blocking part 2310.

[0075] The valve core 2000 includes a second blocking part 2320. The valve core 2000 is adapted to open the air outlet 1120 when it is rotated to the point where the second blocking part 2320 is misaligned with the air outlet 1120, and to close the air outlet 1120 when it is rotated to the point where the second blocking part 2320 is opposite to the air outlet 1120. Based on the rotatable setting of the valve core 2000, the second blocking part 2320 is provided to facilitate the opening and closing of the air outlet 1120.

[0076] It is understandable that, since there are multiple air outlets 1120, when the second shield 2320 is offset from the corresponding air outlet 1120, the corresponding air outlet 1120 is opened, and when the second shield 2320 is opposite to the corresponding air outlet 1120, the corresponding air outlet 1120 is closed.

[0077] The following explanation uses multiple air outlets 1120, including a first air outlet 1121, a second air outlet 1122, and a third air outlet 1123, as an example.

[0078] When the valve core 2000 opens the air inlet 1110 and the first air outlet 1121 and closes the second air outlet 1122 and the third air outlet 1123, the first shielding part 2310 is offset from the air inlet 1110, the second shielding part 2320 is offset from the first air outlet 1121, and the second shielding part 2320 is opposite to the second air outlet 1122 and the third air outlet 1123.

[0079] When the valve core 2000 opens the air inlet 1110, the first air outlet 1121 and the second air outlet 1122 and closes the third air outlet 1123, the first shielding part 2310 is offset from the air inlet 1110, the second shielding part 2320 is offset from the first air outlet 1121 and the second air outlet 1122, and the second shielding part 2320 is opposite to the third air outlet 1123.

[0080] When the valve core 2000 opens the air inlet 1110 and the third air outlet 1123 and closes the first air outlet 1121 and the second air outlet 1122, the first shielding part 2310 is offset from the air inlet 1110, the second shielding part 2320 is offset from the third air outlet 1123, and the second shielding part 2320 is opposite to the first air outlet 1121 and the second air outlet 1122.

[0081] When the valve core 2000 closes the air inlet 1110 and the first air outlet 1121 and opens the second air outlet 1122 and the third air outlet 1123, the first shielding part 2310 is opposite to the air inlet 1110, the second shielding part 2320 is opposite to the first air outlet 1121, and the second shielding part 2320 is staggered from the second air outlet 1122 and the third air outlet 1123.

[0082] Combination Figures 1 to 6 as well as Figures 12 to 20 As shown, in some embodiments, the plurality of air outlets 1120 include a first air outlet 1121, a second air outlet 1122 and a third air outlet 1123;

[0083] The connection positions include a first connection position, in which the valve core 2000 is adapted to open the first air outlet 1121 and close the second air outlet 1122 and the third air outlet 1123 when the air inlet 1110 is opened; and / or, the connection positions include a second connection position, in which the valve core 2000 is adapted to open the first air outlet 1121 and the second air outlet 1122 and close the third air outlet 1123 when the air inlet 1110 is opened; and / or, the connection positions include a third connection position, in which the valve core 2000 is adapted to open the third air outlet 1123 and close the first air outlet 1121 and the second air outlet 1122 when the air inlet 1110 is opened; and / or, in the cut-off position, the valve core 2000 is adapted to open the second air outlet 1122 and the third air outlet 1123 and close the first air outlet 1121 when the air inlet 1110 is closed.

[0084] In other words, the valve core 2000 is rotatable and can reach at least four positions, namely the first connected position, the second connected position, the third connected position, and the cut-off position. This makes the air distribution device 10 include at least four operating states. The first operating state is to open the air inlet 1110 and the first air outlet 1121 and close the second air outlet 1122 and the third air outlet 1123. The second operating state is to open the air inlet 1110, the first air outlet 1121 and the second air outlet 1122 and close the third air outlet 1123. The third operating state is to open the air inlet 1110 and the third air outlet 1123 and close the first air outlet 1121 and the second air outlet 1122. The fourth operating state is to close the air inlet 1110 and the first air outlet 1121 and open the second air outlet 1122 and the third air outlet 1123.

[0085] Continuing with the example of the dishwasher mentioned above, the first air outlet 1121 is adapted to be connected to the drain pump 30, the second air outlet 1122 is adapted to be connected to the water cup 20, the third air outlet 1123 is adapted to be connected to the washing pump 40, and the blower 60 is adapted to be connected to the air inlet 1110.

[0086] When the valve core rotates to the first connected position, the valve core 2000 opens the air inlet 1110 and the first air outlet 1121 and closes the second air outlet 1122 and the third air outlet 1123. The airflow pumped by the blowing device 60 can enter the air distribution chamber 1130 from the air inlet 1110 and be discharged from the first air outlet 1121 to the drain pump 30. The positive pressure airflow of the blowing device 60 drives the drainage pump to drain the residual water, reducing or even eliminating the presence of residual water in the drainage pump 30 and improving the drying effect.

[0087] When the valve core rotates to the second connected position, the valve core 2000 opens the air inlet 1110, the first air outlet 1121 and the second air outlet 1122 and closes the third air outlet 1123. The airflow pumped by the blowing device 60 can enter the air distribution chamber 1130 from the air inlet 1110 and be discharged from the first air outlet 1121 and the second air outlet 1122. The airflow discharged from the first air outlet 1121 flows to the drain pump 30 and is driven by the positive pressure airflow of the blowing device 60 to drain the residual water in the drain pump. The airflow discharged from the second air outlet 1122 flows to the water cup 20 and is driven by the positive pressure airflow of the blowing device 60 to drain the residual water in the water cup 20, thereby reducing or even eliminating the presence of residual water in the drain pump 30 and the water cup 20 and improving the drying effect.

[0088] When the valve core rotates to the third connected position, the valve core 2000 opens the air inlet 1110 and the third air outlet 1123 and closes the first air outlet 1121 and the second air outlet 1122. The airflow pumped by the blowing device 60 can enter the air distribution chamber 1130 from the air inlet 1110 and be discharged from the third air outlet 1123 to the washing pump 40. Since the washing pump 40 is connected to the spray device 50, the airflow to the washing pump 40 continues to flow to the spray device 50. This can remove the moisture from the washing pump 40 and the spray device 50, reduce or even eliminate the presence of residual water in the washing pump 40 and the spray device 50, and improve the drying effect.

[0089] When the valve core rotates to the cut-off position, the valve core 2000 closes the air inlet 1110 and the first air outlet 1121 and opens the second air outlet 1122 and the third air outlet 1123. The second air outlet 1122 and the third air outlet 1123 are connected, and the washing pump 40 can draw water from the water cup 20 through the air distribution device 10. That is, during the washing cycle, the water flows from the water cup 20 through the second air outlet 1122, the third air outlet 1123 and the washing pump 40 in sequence to the spray device 50.

[0090] Combination Figures 3 to 20As shown, in some embodiments, the valve core 2000 further includes a first connecting hole 2410. The first connecting hole 2410 and the first shielding portion 2310 are coplanarly arranged. The first connecting hole 2410 is adapted to connect the air distribution chamber 1130 and the air inlet 1110 when the first shielding portion 2310 and the air inlet 1110 are misaligned. By setting the first connecting hole 2410, it is possible to connect the air inlet 1110 and the air distribution chamber 1130 when the first shielding portion 2310 and the air inlet 1110 are misaligned. Optionally, the valve core 2000 includes at least two spaced-apart first connecting holes 2410. By setting at least two spaced-apart first connecting holes 2410, the valve core 2000 can open the air inlet 1110 in different positions. And since the at least two first connecting holes 2410 are spaced-apart, this is beneficial to maintaining the structural strength of the valve core 2000 (relative to a single large connecting hole).

[0091] Similarly, combining Figures 3 to 20 As shown, in some embodiments, the valve core 2000 further includes at least two spaced-apart second connecting holes 2420. The second connecting holes 2420 communicate with the air distribution chamber 1130. The second connecting holes 2420 are adapted to communicate with the air outlet 1120 to open the air outlet 1120 when the second shielding portion 2320 is misaligned with the air outlet 1120. In this embodiment, since there are multiple air outlets 1120 and the valve core 2000 is rotatably configured, by providing at least two spaced-apart second connecting holes 2420, the valve core 2000 can achieve the opening of the corresponding air outlet 1120 in different positions. Since the at least two second connecting holes 2420 are spaced apart, this helps to maintain the structural strength of the valve core 2000 (relative to a single large connecting hole).

[0092] It is understandable that, for both the at least two first connecting holes 2410 and the at least two second connecting holes 2420, the so-called separation means that there is a separating rib 2500 between two adjacent holes, and the separating rib 2500 makes the two adjacent holes completely or partially separated.

[0093] Combination Figures 3 to 12 As shown, in some embodiments, the air inlet 1110 is disposed at one end of the valve housing 1000, a plurality of air outlets 1120 are arranged sequentially along the circumferential direction of the valve housing 1000, the second shielding part 2320 extends along the circumferential direction of the valve core 2000, and the first shielding part 2310 and the second shielding part 2320 are arranged perpendicularly.

[0094] The first shielding part 2310 is disposed in the axial direction of the valve core 2000, while the second shielding part 2320 is disposed in the circumferential direction of the valve core 2000. The axial direction is the extension direction of the rotation axis of the valve core 2000, and the circumferential direction is the direction around the rotation axis of the valve core 2000. Since the second shielding part 2320 needs to cooperate with multiple air outlets 1120, and each air outlet 1120 needs to connect to a corresponding target area, the second shielding part 2320 is disposed in the circumferential direction, and correspondingly, the multiple air outlets 1120 are located on the circumferential wall of the valve housing 1000. The first shielding part 2310 needs to cooperate with the air inlet 1110, and the first shielding part 2310 is disposed in the axial direction, and correspondingly, the air inlet 1110 is located on the end wall of the valve housing 1000. This arrangement is more conducive to the structural layout, and the structure of the air distribution device 10 is more compact.

[0095] Since the valve core 2000 is rotatable and the first shielding part 2310 is located in the axial direction of the valve core 2000, and the first shielding part 2310 is perpendicular to the rotation axis of the valve core 2000, designing the first shielding part 2310 as a planar structure is more conducive to its cooperation with the air inlet 1110. Similarly, since the valve core 2000 is rotatable and the second shielding part 2320 is located in the circumferential direction of the valve core 2000, the trajectory of the second shielding part 2320 is circular or arc-shaped during the rotation of the valve core 2000. Therefore, designing the second shielding part 2320 as an arc-shaped structure is more conducive to its cooperation with the air outlet 1120. For example, the first shielding part 2310 and the second shielding part 2320 are arranged perpendicularly. Since the second shielding part 2320 needs to cooperate with multiple air outlets 1120, and the valve core 2000 is rotatably mounted in the air distribution chamber 1130, the valve housing 1000 also needs to be designed to cooperate with the valve core 2000. By arranging the first shielding part 2310 and the second shielding part 2320 perpendicularly, it is convenient to set up multiple air outlets 1120, making more rational use of space. The multiple air outlets 1120 are arranged sequentially along the circumferential direction of the valve core 2000, which makes it easier for the second shielding part 2320 to cooperate with the corresponding air outlets 1120, reduces structural complexity, is more conducive to the control of the air distribution device 10, and also provides enough space for the multiple air outlets 1120 to be connected to the corresponding target areas through pipelines, making rational use of space.

[0096] Combination Figure 1 As shown, in some embodiments, along the circumferential direction of the valve core 2000, the arc length of the second shielding portion 2320 is s0, and the maximum arc length of the air outlet 1120 is s1, wherein s0 > s1. By setting it in this way, it is more conducive to closing the corresponding air outlet 1120.

[0097] Combination Figures 3 to 12As shown, in some embodiments, the plurality of air outlets 1120 include a first air outlet 1121, a second air outlet 1122, and a third air outlet 1123; on the same plane, the line connecting the center of the first air outlet 1121 and the rotation axis of the valve core 2000 is the first connecting line, the line connecting the center of the second air outlet 1122 and the rotation axis of the valve core 2000 is the second connecting line, and the line connecting the center of the third air outlet 1123 and the rotation axis of the valve core 2000 is the third connecting line; the included angle between the first connecting line and the second connecting line is α1, the included angle between the second connecting line and the third connecting line is α2, the included angle between the first connecting line and the third connecting line is α3, and the included angle between the two opposite sides of the second shielding part 2320 along the circumferential direction of the valve core 2000 is α4, satisfying α4>α1, α4>α2, α4≤α3.

[0098] The first air outlet 1121, the second air outlet 1122, and the third air outlet 1123 are arranged sequentially along the circumferential direction of the valve core 2000. The center of the second air outlet 1122 is offset by a certain angle α1 relative to the center of the first air outlet 1121 around the rotation center of the valve core 2000. The center of the third air outlet 1123 is offset by a certain angle α2 relative to the center of the second air outlet 1122 around the rotation center of the valve core 2000. α3 is the sum of α1 and α2. α1 may be equal to or unequal to α2. Since the second shielding part 2320 needs to cooperate with multiple air outlets 1120 to realize the opening and closing of the corresponding air outlets 1120, the included angle between the two opposite sides of the second shielding part 2320 along the circumferential direction of the valve core 2000 is designed to be α4, α4≤α3. In this way, the second shielding part 2320 can correspond only to the first air outlet 1121, or only to the third air outlet 1123, or correspond to the first air outlet 1121 and the second air outlet 1122, or correspond to the second air outlet 1122 and the third air outlet 1123. In particular, when this embodiment is applied to a dishwasher, since the space of the dishwasher is limited, this arrangement is more conducive to the connection of the air distribution device 10 with other components through the pipeline, thus optimizing the space arrangement.

[0099] Combination Figures 3 to 12 As shown, in some embodiments, the valve core 2000 is composed of separate components connected together. Since the valve core 2000 needs to cooperate with the air inlet 1110 and multiple air outlets 1120, corresponding structures such as the first shielding part 2310 and the second shielding part 2320 are required. To facilitate the implementation of the valve core 2000 structure, designing the valve core 2000 as composed of separate components connected together simplifies the manufacturing process. For example, the valve core 2000 includes a first diverter 2100 and a second diverter 2200 connected together. The first diverter 2100 and the second diverter 2200 are manufactured separately, and then connected and fixed together after manufacturing.

[0100] Optionally, the first diverter 2100 includes a first baffle 2110 extending in the circumferential direction of the valve core 2000, and the second diverter 2200 includes a second baffle 2210 extending in the circumferential direction of the valve core 2000. The first baffle 2110 and the second baffle 2210 are joined together to form a second blocking portion 2320. For example, the first diverter 2100 and the second diverter 2200 are injection molded separately. When the first diverter 2100 and the second diverter 2200 are connected and fixed, the first baffle 2110 and the second baffle 2210 cooperate to form a complete second blocking portion 2320 (the first baffle 2110 and the second baffle 2210 are arc-shaped and joined together).

[0101] Optionally, the first shielding part 2310 is disposed on the end face of the first diverter 2100 near the air inlet 1110, and the first shielding part 2310 is perpendicular to the first baffle 2110, which makes it easier to cooperate with the air inlet 1110 and the structure is more compact.

[0102] Optionally, the second diverter 2200 is further provided with a second connecting hole 2420, which is connected to the air distribution cavity 1130. The second connecting hole 2420 is suitable for connecting the air distribution cavity 1130 and the corresponding air outlet 1120 when the first baffle 2110, the second baffle 2210 and the corresponding air outlet 1120 are misaligned. This makes it easier to cooperate with the corresponding air outlet 1120 and the structure is more compact.

[0103] There are several ways to connect the first diverter 2100 and the second diverter 2200. For example, the first diverter 2100 and the second diverter 2200 can be inserted along the axial direction of the valve core 2000, so that the first diverter 2100 and the second diverter 2200 can mutually constrain each other along the circumferential direction of the valve core 2000. For example, combining... Figure 12 As shown, the first diverter 2100 is provided with an insertion hole 2710, and the second diverter 2200 is provided with a pin 2720. The insertion hole 2710 and the pin 2720 are inserted and connected along the axial direction of the valve core 2000. Optionally, the first diverter 2100 and the second diverter 2200 are further fixed by a snap-fit ​​connection to prevent the first diverter 2100 from disengaging from the second diverter 2200.

[0104] Combination Figures 3 to 12 As shown, in some embodiments, the valve housing 1000 includes a housing body 1100 and a sealing cover 1200. One end of the housing body 1100 is open, and the sealing cover 1200 is disposed at one end of the housing body 1100 to enclose the air distribution cavity 1130 with the housing body 1100.

[0105] Specifically, the shell body 1100 has a hollow structure, and an air outlet 1120 is provided on the peripheral wall of the shell body 1100. One end of the shell body 1100 is open, and the other end of the shell body 1100 is provided with an air inlet 1110. With this arrangement, the valve core 2000 can be inserted from the open end of the shell body 1100, and then the sealing cover 1200 is covered to enclose the valve core 2000, which facilitates the assembly of the air distribution device 10.

[0106] Combination Figures 3 to 12 As shown, in some embodiments, the housing body 1100 is provided with an air inlet 1110, which is located at the other end of the housing body 1100, and the valve core 2000 elastically abuts against the sealing cover 1200 along the axial direction of the valve core 2000.

[0107] Specifically, optionally, the valve core 2000 is rotatably disposed in the air cavity and is adapted to elastically abut against the sealing cover 1200 along the axial direction of the valve core 2000. When the air inlet 1110 is disposed at the other end of the housing body 1100, since the valve core 2000 is installed into the housing body 1100 along the axial direction and the valve core 2000 needs to open and close the air inlet 1110, the sealing cover 1200 elastically abuts against the valve core 2000, so that the valve core 2000 is pressed against the other end of the housing body 1100, and the closure of the air inlet 1110 is more reliable.

[0108] For example, the valve core 2000 includes an elastic arm 2600, which is integrally formed with the second diverter 2200. When the sealing cover 1200 is connected to the housing body 1100, the sealing cover 1200 abuts against the elastic arm 2600, and the elastic arm 2600 elastically deforms, forcing the valve core 2000 to press against the other end of the housing body 1100.

[0109] Combination Figure 3 and Figure 4 As shown, in some embodiments, the air distribution device 10 further includes a motor and a drive shaft 3000. The drive shaft 3000 passes through the sealing cover 1200 to connect to the valve core 2000. The motor is adapted to drive the valve core 2000 to rotate via the drive shaft 3000. Optionally, the second air distribution member 2200 has a rotating shaft 2220 on the side away from the air inlet 1110. The rotating shaft 2220 is used to connect to the drive shaft 3000 of the motor to drive the valve core 2000 to rotate.

[0110] The second aspect of this application discloses a dishwasher, combined with Figures 1 to 20As shown, in some embodiments, the dishwasher includes the aforementioned air distribution device 10. The air distribution device 10 includes a valve housing 1000 and a valve core 2000. An air distribution chamber 1130 is formed within the valve housing 1000. The valve housing 1000 has an air inlet 1110 and multiple air outlets 1120. In this document, "multiple" means three or more, and can be three, four, five, or more. The valve core 2000 is rotatably disposed within the air distribution chamber 1130 to open and close the air inlet 1110 and to open and close the air outlets 1120. The valve core 2000 has a connecting position and a closing position. In the connected position, the valve core 2000 is adapted to open the air inlet 1110 to connect the air inlet 1110 and the air distribution chamber 1130, and simultaneously open at least one of the multiple air outlets 1120 and close the remaining air outlets 1120. In the closed position, the valve core 2000 is adapted to close the air inlet 1110 to isolate the air inlet 1110 and the air distribution chamber 1130, and simultaneously open at least two of the multiple air outlets 1120 and close the remaining air outlets 1120. This configuration allows the air distribution device 10 to have multiple conduction states, suitable for complex fluid transport requirements. It is understood that the air distribution device 10 of the dishwasher in this embodiment adopts the technical solution of the above embodiment, and therefore at least has the beneficial effects brought by the technical solution of the above embodiment, which will not be repeated here.

[0111] Combination Figures 1 to 20 As shown, in some embodiments, the dishwasher also includes a water cup 20, a washing pump 40, and a blower 60, wherein the water cup 20 is provided with a water storage chamber 21 and a drain channel;

[0112] The first air outlet 1121 of the valve housing 1000 is adapted to be connected to the drain channel, the second air outlet 1122 of the valve housing 1000 is adapted to be connected to the water storage chamber 21 (for example, the air distribution device 10 is connected between the water cup 20 and the washing pump 40), the third air outlet 1123 of the valve housing 1000 is adapted to be connected to the inlet of the washing pump 40, the blower 60 is adapted to be connected to the air inlet 1110, the dishwasher's drain pump 30 is connected to the drain channel, and when the dishwasher is draining, water flows from the water storage chamber 21 into the drain channel and is discharged through the drain pump 30.

[0113] When the valve core 2000 opens the air inlet 1110 and the first air outlet 1121 and closes the second air outlet 1122 and the third air outlet 1123, the airflow pumped by the blowing device 60 can enter the air distribution chamber 1130 from the air inlet 1110 and be discharged from the first air outlet 1121 to the drainage channel and the drainage pump 30. The positive pressure airflow of the blowing device 60 drives the drainage pump 30 to drain the residual water, reduce or even eliminate the presence of residual water in the drainage pump 30, and improve the drying effect.

[0114] When the valve core 2000 opens the air inlet 1110, the first air outlet 1121, and the second air outlet 1122 and closes the third air outlet 1123, the airflow pumped by the blower device 60 can enter the air distribution chamber 1130 from the air inlet 1110 and be discharged from the first air outlet 1121 and the second air outlet 1122. The airflow discharged from the first air outlet 1121 flows to the drainage channel and the drainage pump 30 to remove the moisture from the drainage pump 30. The airflow discharged from the second air outlet 1122 flows to the water cup 20. The positive pressure airflow of the blower device 60 drives the drainage of the residual water in the water cup 20, reducing or even eliminating the presence of residual water in the drainage pump 30 and the water cup 20, thereby improving the drying effect.

[0115] When valve core 2000 opens air inlet 1110 and third air outlet 1123 and closes first air outlet 1121 and second air outlet 1122, the airflow pumped by blower device 60 can enter air distribution chamber 1130 from air inlet 1110 and exit from third air outlet 1123 to the washing pump 40. Since the washing pump 40 is connected to spray device 50, the airflow to the washing pump 40 continues to the spray device 50, thus removing moisture from the washing pump 40 and spray device 50, reducing or even eliminating residual water in the washing pump 40 and spray device 50, and improving the drying effect. Since the spray device 50 is connected to the inner tank, the airflow sprayed from the spray device 50 can also dry the inner tank (tableware).

[0116] When the valve core 2000 closes the air inlet 1110 and the first air outlet 1121 and opens the second air outlet 1122 and the third air outlet 1123, the second air outlet 1122 and the third air outlet 1123 are connected. The washing pump 40 can draw water from the water storage chamber 21 of the water cup 20 through the air distribution device 10. That is, during the washing cycle, the water flows out from the water storage chamber 21 of the water cup 20 and flows through the second air outlet 1122 and the third air outlet 1123 in sequence to enter the washing pump 40. The washing pump 40 pumps water towards the spray device 50. After the water is sprayed out by the spray device 50, it falls back into the water cup 20 and continues to be drawn by the washing pump 40.

[0117] Optionally, the blowing device includes a fan and an air inlet pipe 61, one end of which is connected to the fan and the other end blows air toward the air distribution device. The fan is an axial flow fan.

[0118] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. An air distribution device, characterized in that, include: A valve housing, wherein an air distribution chamber is formed inside the valve housing, and the valve housing is provided with an air inlet and multiple air outlets; The valve core is rotatably disposed in the air distribution chamber to open and close the air inlet and the air outlet. The valve core has a connecting position and a closing position. In the connected position, the valve core is adapted to open the air inlet to connect the air inlet and the air distribution chamber, and simultaneously open at least one of the plurality of air outlets and close the remaining air outlets; In the cut-off position, the valve core is adapted to close the air inlet to isolate the air inlet from the air distribution chamber, and simultaneously open at least two of the plurality of air outlets and close the remaining air outlets.

2. The air distribution device as described in claim 1, characterized in that, The valve core includes a first blocking part and a second blocking part. The first blocking part can open and close the air inlet, and the second blocking part can open and close the air outlet. The first blocking part and the second blocking part are adapted to rotate synchronously when the valve core rotates.

3. The air distribution device as described in claim 2, characterized in that, The plurality of air outlets include a first air outlet, a second air outlet, and a third air outlet; The connection position includes a first connection position, in which the valve core is adapted to open the first air outlet and close the second air outlet and the third air outlet when the air inlet is opened; and / or, the connection position includes a second connection position, in which the valve core is adapted to open the first air outlet and the second air outlet and close the third air outlet when the air inlet is opened; and / or, the connection position includes a third connection position, in which the valve core is adapted to open the third air outlet and close the first air outlet and the second air outlet when the air inlet is opened.

4. The air distribution device as described in claim 3, characterized in that, In the cut-off position, the valve core is adapted to open the second air outlet and the third air outlet and close the first air outlet when the air inlet is closed.

5. The air distribution device as described in claim 2, characterized in that, The valve core further includes a first connecting hole, which is coplanar with the first shielding portion. The first connecting hole is adapted to connect the air distribution chamber and the air inlet when the first shielding portion and the air inlet are misaligned.

6. The air distribution device as described in claim 2, characterized in that, The air inlet is located at one end of the valve housing, and multiple air outlets are arranged sequentially along the circumferential direction of the valve housing. The second shielding part extends along the circumferential direction of the valve core, and the first shielding part and the second shielding part are arranged perpendicularly.

7. The air distribution device as described in claim 6, characterized in that, The first shielding part is a planar structure; And / or, the second shielding part is an arc-shaped structure.

8. The air distribution device as described in claim 7, characterized in that, Along the circumference of the valve core, the arc length of the second shielding part is s0, and the maximum arc length of the air outlet is s1, wherein s0 > s1.

9. The air distribution device as described in claim 7, characterized in that, The plurality of air outlets include a first air outlet, a second air outlet, and a third air outlet; On the same plane, the line connecting the center of the first air outlet and the rotation axis of the valve core is the first line, the line connecting the center of the second air outlet and the rotation axis of the valve core is the second line, and the line connecting the center of the third air outlet and the rotation axis of the valve core is the third line. The included angle between the first line and the second line is α1, the included angle between the second line and the third line is α2, the included angle between the first line and the third line is α3, and the included angle between the two opposite sides of the second blocking part along the circumferential direction of the valve core is α4, satisfying α4>α1, α4>α2, α4≤α3.

10. The air distribution device as described in claim 2, characterized in that, The valve core includes a first diverter and a second diverter connected to each other. The first diverter includes a first baffle extending in the circumferential direction of the valve core, and the second diverter includes a second baffle extending in the circumferential direction of the valve core. The first baffle and the second baffle are joined together to form the second shielding portion.

11. The air distribution device as described in claim 10, characterized in that, The first shielding part is disposed on the end face of the first diverter near the air inlet, and the first shielding part is perpendicular to the first baffle.

12. The air distribution device as described in claim 10, characterized in that, The second diverter is also provided with a second connecting hole, which is connected to the air distribution cavity. The second connecting hole is used to connect the air distribution cavity and the corresponding air outlet when the first baffle, the second baffle and the corresponding air outlet are misaligned.

13. The air distribution device as described in claim 10, characterized in that, The first diverter is provided with a socket, and the second diverter is provided with a pin. The socket and the pin are connected along the axial direction of the valve core. And / or, the first diverter and the second diverter are snap-fitted together.

14. The air distribution device as described in claim 10, characterized in that, The second diverter has a rotating shaft on the side away from the air inlet. The rotating shaft is used to connect to the drive shaft of the motor to drive the valve core to rotate.

15. The air distribution device as described in claim 1, characterized in that, The valve housing includes a housing body and a sealing cover. One end of the housing body is open, and the sealing cover is located at one end of the housing body to enclose the air distribution cavity with the housing body. The housing body is provided with the air inlet, and the air inlet is located at the other end of the housing body.

16. The air distribution device as described in claim 15, characterized in that, The valve core includes an elastic arm adapted to abut against the sealing cap and elastically deform.

17. The air distribution device as described in claim 15, characterized in that, The air distribution device also includes a motor and a drive shaft. The drive shaft passes through the sealing cover to connect to the valve core, and the motor is adapted to drive the valve core to rotate via the drive shaft.

18. A dishwasher, characterized in that, Includes the air distribution device as described in any one of claims 1 to 17.

19. The dishwasher as claimed in claim 18, characterized in that, The dishwasher also includes a water cup, a washing pump, and a blower, wherein the water cup is provided with a water storage chamber and a drainage channel; The first air outlet of the valve housing is adapted to communicate with the drainage channel, the second air outlet of the valve housing is adapted to communicate with the water storage chamber, the third air outlet of the valve housing is adapted to communicate with the inlet of the washing pump, and the blower is adapted to communicate with the air inlet.

20. The dishwasher as claimed in claim 19, characterized in that, The 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 toward the air distribution device. The fan is an axial flow fan.

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