Dishwasher

Abstract

The utility model relates to a dishwasher. The dish-washing machine comprises an inner container, a water storage cup, an air inlet device and an air exhaust device. Wherein a washing space is arranged in the inner container; the water storage cup is located below the inner container and comprises a water return area communicated with the washing space. The gas inlet device is used for providing gas for drying to the washing space; the exhaust device is used for exhausting gas in the washing space; the air inlet device is communicated with the washing space, and the air exhaust device is communicated with the water return area, so that an air flow path sequentially passing through the air inlet device, the washing space, the water return area and the air exhaust device is formed. According to the scheme, the air flow in the washing space passes through the water storage cup and then is exhausted from the exhaust device, so that the dry air flow wraps water vapor in the water return area when flowing through the water return area, the water vapor in the water storage cup is wrapped by the air flow in the ventilation circulation, discharge of residual water in the water storage cup is accelerated, and the washing effect is improved. The overall drying effect of the washing space of the dish-washing machine is improved.

Description

Technical Field

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

[0002] A dishwasher is a device that automatically cleans tableware such as bowls, chopsticks, plates, dishes, knives, and forks. During the cleaning process, a large amount of water vapor is generated, and there may also be some odors caused by detergent. Therefore, it is necessary to ventilate the dishwasher.

[0003] The residual water in a dishwasher usually accumulates in the water cup located at the lowest point of the inner tub. Due to the presence of filters and other structural obstructions, the water cup is often blocked. Meanwhile, the exhaust duct is usually located on the side wall of the inner tub. For example, the air inlet and outlet are located on the side wall or high in the door, so the airflow path cannot reach the water cup. This makes it difficult for airflow to reach the water cup during drying or storage, resulting in slow evaporation of the residual water in the water cup and easily causing odors. Summary of the Invention

[0004] Therefore, it is necessary to provide a dishwasher that addresses the problem of poor drying effect at low levels during the venting process of existing dishwashers, taking a water cup as an example.

[0005] A dishwasher includes an inner tub, a water reservoir, an air intake device, and an exhaust device. The inner tub contains a washing space; the water reservoir is located below the inner tub and includes a return water area communicating with the washing space; the air intake device supplies drying gas to the washing space; the exhaust device discharges gas from the washing space; the air intake device is connected to the washing space, and the exhaust device is connected to the return water area, forming an airflow path that sequentially passes through the air intake device, the washing space, the return water area, and the exhaust device.

[0006] In one embodiment, the exhaust device includes an exhaust pipe, one end of which is provided with an exhaust inlet communicating with the return water area, and the other end of which is provided with an exhaust outlet communicating with the outside. The interior of the exhaust pipe is hollow to form an exhaust channel communicating with the exhaust inlet and the exhaust outlet.

[0007] In one embodiment, the exhaust device includes an opening and closing device configured to be movably disposed within the exhaust passage between an obstructed position and an open position. When the opening and closing device is in the obstructed position, the exhaust passage is disconnected; when the opening and closing device is in the open position, the exhaust passage is unobstructed.

[0008] In one embodiment, the exhaust pipe includes a first pipe and a second pipe, the exhaust inlet is located at the end of the first pipe away from the second pipe, and the opening and closing device is movably connected to the first pipe or the second pipe so that the first pipe and the second pipe can be connected on and off.

[0009] In one embodiment, the first pipe is connected to the bottom surface of the water storage cup and is arranged perpendicularly to the bottom surface.

[0010] In one embodiment, the exhaust device further includes a drive member for moving the opening and closing device, the drive member being located on the side of the opening and closing device opposite to the exhaust inlet.

[0011] In one embodiment, the vent pipe is connected to the bottom surface of the water storage cup, or the vent pipe is connected to the side wall of the water storage cup.

[0012] In one embodiment, the air intake device includes an air inlet communicating with the washing space, the air inlet being opened on the peripheral wall of the washing space, and the air intake device, the washing space and the exhaust channel forming a circulation loop.

[0013] In one embodiment, the dishwasher includes a detection element for detecting temperature and humidity, and the detection element is located in the airflow path and acts on the water reservoir.

[0014] In one embodiment, the dishwasher includes a detection element for detecting temperature and humidity, and the detection element is located in the airflow path and acts at the junction of the exhaust device and the return water area.

[0015] The dishwasher provided in the above solution has an exhaust device connected to the water storage cup. This allows the airflow in the washing space to pass through the water storage cup and then be discharged from the exhaust device. As the dry airflow flows through the return water area, it carries away the water vapor in the return water area. The exhaust device then discharges the moisture-laden air from the dishwasher. In this air exchange cycle, the airflow carries away the water vapor in the water storage cup, accelerating the discharge of residual water from the water storage cup and thus improving the overall drying effect of the dishwasher's washing space. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a dishwasher according to one embodiment of this application.

[0017] Figure 2 for Figure 1 A schematic diagram of the internal structure of a dishwasher.

[0018] Figure 3 for Figure 1 A schematic diagram of the base structure.

[0019] Figure 4 for Figure 3 A structural diagram of the base from another perspective.

[0020] Figure 5 for Figure 2 A schematic diagram of the exhaust pipe structure.

[0021] Figure 6 for Figure 5 A cross-sectional structural diagram of the exhaust pipe.

[0022] Figure 7 for Figure 6 A schematic diagram of the structure when the exhaust pipe is blocked.

[0023] Figure 8 for Figure 6 A schematic diagram of the structure when the exhaust pipe is unobstructed.

[0024] Figure 9 for Figure 6 The diagram shows the installation of the exhaust pipe.

[0025] Figure 10 This is a schematic diagram of the exhaust device of a dishwasher according to another embodiment of this application.

[0026] Figure 11 This is a logical schematic diagram of the exhaust control method for a dishwasher according to one embodiment of this application.

[0027] Explanation of reference numerals in the attached figures:

[0028] 10. Dishwasher; 100. Exhaust system; 110. Exhaust pipe; 111. Exhaust passage; 112. Intake pipe; 1121. First pipe; 11211. Exhaust inlet; 11212. Connecting port; 1122. Second pipe; 113. Discharge pipe; 1131. Exhaust outlet; 114. Base plate; 1141. Protrusion; 1142. Overflow port; 115. Hanging section; 120. Opening and closing device; 121. First seal; 1211. Sealing end face; 1212. Sealing peripheral surface; 122. Second seal; 130. Drive element; 140. Detection element; 150. Exhaust fan; 200. Inner tank; 210. Washing space; 300. Door; 400. Kickboard; 500. Air intake device; 510. Air inlet; 600. Drainage device; 700. Base; 800. Water storage cup; 810. Return water area. Detailed Implementation

[0029] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0030] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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.

[0031] Furthermore, where the terms "first" and "second" appear, these terms are 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 with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] 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 based on the specific circumstances.

[0033] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via 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. Similarly, "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.

[0034] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0035] See Figure 1 and Figure 2 , Figure 1 A schematic diagram of the structure of a dishwasher 10 according to an embodiment of this application is shown. Figure 2 A schematic diagram of the internal structure of a dishwasher 10 according to an embodiment of this application is shown. An embodiment of this application provides a dishwasher 10, which includes an inner tub 200 having a washing space 210 and a door 300 covering the inner tub 200. It also includes a base 700 located below the inner tub 200 and a kick plate 400 connected to the base 700 and located below the door 300. The base 700, inner tub 200, and door 300 together enclose the sealed washing space 210. The dishwasher 10 also includes an exhaust device 100 as described in any of the following embodiments, used to exhaust moisture inside the washing space 210 to the outside.

[0036] like Figure 1 and Figure 2 As shown, in one embodiment, the dishwasher 10 further includes an air intake device 500 for providing drying gas to the washing space 210. The air intake device 500 includes an air inlet 510 communicating with the washing space 210. The air inlet 510 is formed on the peripheral wall of the washing space 210, such as the inner tank side wall or the door.

[0037] like Figure 2 and Figure 3As shown, the dishwasher 10 also includes a water reservoir 800, which is located at the bottom of the dishwasher 10. In this embodiment, the water reservoir 800 is located on the upper surface of the base 700, and the water reservoir 800 includes a return water area 810 connected to the washing space 210. During the washing process of the dishwasher 10, after washing and drainage are completed, the dishwasher enters the drying process. At this time, there is water on the dishes and inner walls, which causes a small amount of water to remain in the water reservoir 800 after backflow. Figure 4 As shown, the dishwasher 10 also includes a drain device 600 that communicates with the return water area 810 and is used to drain the residual water in the return water area 810. The drain device 600 can control whether the water storage cup 800 starts to drain water. The drain device 600 may optionally include a drain valve and / or a drain pump.

[0038] In this embodiment, both the air intake device 500 and the exhaust device 100 are connected to the water storage cup 800 to form an airflow path that sequentially passes through the air intake device 500, the washing space 210, the return water area 810, and the exhaust device. The exhaust passage 111 of the air intake device 500, the washing space 210, the return water area 810, and the exhaust device 100 forms a circulation loop. The air intake device 500 guides the external dry airflow into the washing space 210 and the return water area 810. After flowing through the return water area 810, the dry airflow will carry some water vapor and become humid. The exhaust device 100 exhausts the humid air inside the washing space 210 to the outside to form a ventilation cycle. In the ventilation cycle, the water vapor in the return water area 810 is dried, and the residual water in the water storage cup is discharged, thereby improving the overall drying effect of the dishwasher's washing space.

[0039] Combination Figure 3 As shown, Figure 3 A schematic diagram of the structure of the base 700 of the dishwasher 10 in one embodiment of this application is shown, as follows: Figure 3 As shown in one embodiment of this application, an exhaust device 100 is provided, which acts on the washing space 210 of a dishwasher 10 to exhaust airflow from inside the washing space 210 to the outside. Figure 2 and Figure 3 As shown, the exhaust device 100 includes an exhaust pipe 110. One end of the exhaust pipe 110 is provided with an exhaust inlet 11211 that connects to the return water area 810, and the other end is provided with an exhaust outlet 1131 that connects to the outside. The interior of the exhaust pipe 110 is hollow to form an exhaust channel 111 that connects the exhaust inlet 11211 and the exhaust outlet 1131.

[0040] Combination Figure 5 and Figure 6 As shown, Figure 5 A schematic diagram of the structure of the exhaust pipe 110 in one embodiment of this application is shown. Figure 6 A cross-sectional structural schematic diagram of the exhaust pipe 110 in one embodiment of this application is shown, as follows: Figure 3As shown, the return water area 810 and the venting channel 111 are connected to form a... Figure 6 The exhaust path indicated by the middle arrow has an exhaust outlet 1131 located at the end of the exhaust channel 111 away from the water reservoir 800 to connect to the outside.

[0041] Combination Figure 7 and Figure 8 , Figure 7 and Figure 8 This illustration shows a schematic diagram of the exhaust pipe 110 in two states, on and off, according to one embodiment of the present application. In one embodiment, the exhaust device 100 further includes an opening and closing device 120, which is configured to be able to... Figure 7 The blocking positions shown and as Figure 8 The opening position shown is movable within the exhaust passage 111, as indicated. Figure 7 As shown, when the opening / closing device 120 is in the blocking position, the exhaust passage 111 is disconnected; as Figure 8 As shown, when the opening and closing device 120 is in the open position, the exhaust passage 111 is unobstructed.

[0042] like Figure 7 and Figure 8 As shown, in one embodiment, the exhaust pipe 110 includes a first pipe 1121 and a second pipe 1122. An exhaust inlet 11211 is located at the end of the first pipe 1121 away from the second pipe 1122. Airflow within the washing space 210 flows from the return water area 810 of the water reservoir 800 through the exhaust inlet 11211 to the exhaust channel 111. Figure 8 As shown, when the opening and closing device 120 is in the open position, the first pipe 1121 and the second pipe 1122 are connected and the exhaust inlet 11211 is unobstructed, so that the water storage cup 800, the first pipe 1121 and the second pipe 1122 are connected in sequence.

[0043] In some implementations, such as Figure 7 As shown, the opening and closing device 120 is movably connected to the first pipe 1121 or the second pipe 1122, so that the first pipe 1121 and the second pipe 1122 can be connected and disconnected. When the opening and closing device 120 is in the blocking position, the opening and closing device 120 blocks the exhaust inlet 11211. In other embodiments, when the opening and closing device 120 is in the blocking position, the connection between the first pipe 1121 and the second pipe 1122 is blocked and disconnected by the opening and closing device 120. Figure 7 In the embodiment shown, when the opening and closing device 120 is in the blocking position, the opening and closing device 120 blocks the exhaust inlet 11211, and at the same time, the connection between the first pipe 1121 and the second pipe 1122 is also blocked.

[0044] like Figures 5 to 8As shown, in one embodiment, the first pipe 1121 and the second pipe 1122 are arranged at an angle. The circumferential surface of the first pipe 1121 is provided with a connecting port 11212 that communicates with the second pipe 1122. When the opening and closing device 120 is in the open position, the first pipe 1121 and the second pipe 1122 are connected through the connecting port 11212. That is, the airflow in the washing space 210 flows from the return water area 810 of the water storage cup 800 through the exhaust inlet 11211 to the exhaust channel 111 in the first pipe 1121, and then flows through the connecting port 11212 to the exhaust channel 111 of the second pipe 1122.

[0045] like Figure 7 In the illustrated embodiment, the opening / closing device 120 is movably disposed within the first conduit 1121, and when the opening / closing device 120 is in the blocking position, the opening / closing device 120 blocks the connection port 11212. In other embodiments, the opening / closing device 120 may also be movably disposed within the second conduit 1122, and when the opening / closing device 120 is in the blocking position, the opening / closing device 120 blocks the connection port 11212.

[0046] like Figure 7 and Figure 8 As shown, in one embodiment, the opening and closing device 120 is movably disposed within the first pipe 1121, and the circumferential surface of the opening and closing device 120 is provided with a first sealing member 121 that is interference-fitted with the inner wall of the first pipe 1121. The first sealing member 121 is radially pressed between the inner wall of the first pipe 1121 and the circumferential surface of the opening and closing device 120. Figure 7 and Figure 8 As shown, the first sealing element 121 includes a sealing peripheral surface 1212 that abuts against the inner wall of the first pipe 1121. The sealing peripheral surface 1212 is provided with a protruding ridge to improve the sealing effect of the first sealing element 121. And as... Figure 7 As shown, when the opening and closing device 120 is in the blocking position, and the first sealing member 121 is located on the side of the connecting port 11212 close to the exhaust inlet 11211, the first sealing member 121 and the inner wall of the first pipe 1121 are sealed, thereby blocking the flow path between the exhaust port and the connecting port 11212, so that the airflow cannot flow from the exhaust inlet 11211 to the connecting port 11212, and thus cannot enter the exhaust channel 111 of the second pipe 1122.

[0047] Understandably, when the opening / closing device 120 moves toward the open position, it gradually moves away from the exhaust inlet 11211, gradually forming a connected exhaust channel 111 between the exhaust inlet 11211 and the connecting port 11212. At this time, the positions of the first sealing member 121 and the connecting port 11212 only need to be different from the blocking position, that is, the first sealing member 121 can... Figure 8 The connection port 11212 is shown in the diagram, but at this time the connection port 11212 is connected to the exhaust inlet 11211. Alternatively, the connection port 11212 can be located on the side away from the exhaust inlet 11211.

[0048] Preferably, when the opening and closing device 120 is in the open position, the first seal 121 is located on the side of the communication port 11212 away from the exhaust inlet 11211, so as to prevent the airflow from flowing across the communication port 11212 toward the end of the opening and closing device 120 away from the exhaust inlet 11211.

[0049] like Figure 7 and Figure 8 As shown, in one embodiment, the exhaust device 100 further includes a drive member 130 for driving the opening and closing device 120 to move. The drive member 130 is located on the side of the opening and closing device 120 away from the exhaust inlet 11211. The peripheral surface of the opening and closing device 120 is provided with a second sealing member 122 that is interference-fitted with the inner wall of the first pipe 1121. When the opening and closing device 120 is in the blocked position and the open position, the second sealing member 122 is located on the side of the connecting port 11212 away from the exhaust inlet 11211. This means that when the first sealing member 121 fails, or when the opening and closing device 120 is in the open position, if the stroke length of the first sealing member 121 is insufficient to reach the side of the connecting port 11212 away from the exhaust inlet 11211, the second sealing member 122 is used to isolate the exhaust channel 111 and the drive member 130, so as to prevent the leakage of the high-humidity airflow flowing in the exhaust channel 111 from being detrimental to the drive member 130 and other components provided on the base 700.

[0050] like Figure 7 and Figure 8 As shown, in one embodiment, the first seal 121 further includes a sealing end face 1211 facing the exhaust inlet 11211, and the first pipe 1121 includes a sealing abutment surface for opening the exhaust inlet 11211. When the opening and closing device 120 is in the blocking position, the first seal 121 abuts against the sealing abutment surface in the axial direction of the first pipe 1121, thereby blocking the exhaust inlet 11211 and preventing airflow from entering the first pipe 1121 from the exhaust inlet 11211.

[0051] like Figure 5 , Figure 7 and Figure 8 As shown, in one embodiment, the exhaust device 100 includes a detection element 140 for detecting temperature and humidity, and the detection element 140 is located in the exhaust path and is capable of detecting the temperature and humidity of the airflow flowing during the exhaust process.

[0052] Preferably, the detection element 140 is an integrated light-sensing humidity and turbidity sensor, such as an integrated light-sensing chip. It can determine whether the water is dirty, clean, or air with different humidity by judging the refractive index of the medium at this location. This can effectively reduce the opening of the water storage cup 800, reduce leakage points, improve detection efficiency, and optimize the space of the base 700.

[0053] During the drying and storage process in the dishwasher 10, there is a clear stratification of temperature and humidity in the washing space 210. The area with residual water in the water reservoir 800 and the bottom of the washing space 210 near the water reservoir 800 have higher humidity, with the water reservoir 800 having the highest humidity. Moreover, the hot airflow in the washing space 210 has the physical characteristic of upward flow, resulting in a lower temperature at the bottom of the washing space 210. In other words, the area inside the water reservoir 800 is the point with the lowest temperature and the highest humidity in the washing space 210.

[0054] The detection element 140 acts on the water storage cup 800, or the detection element 140 acts at the connection between the vent channel 111 and the return water area 810, that is, the detection element 140 acts on... Figure 7 and Figure 8 The exhaust inlet 11211 in the embodiment can comprehensively improve the prediction of the dryness of the washing space 210 during the drying and storage process of the dishwasher 10, thereby improving the drying degree of the washing space 210 and the ability to prevent residual water and moisture from returning during the storage process.

[0055] In some embodiments, the detection element 140 may be fixedly connected to the bottom surface of the water reservoir 800, the bottom end of the side wall of the water reservoir 800, or the end face of the water reservoir 800 connected to the exhaust pipe 110. In this embodiment... Figure 7 In the embodiment shown, the detection element 140 is connected to the end face of the opening and closing device 120 facing the water storage cup 800, and when the opening and closing device 120 is in the blocking position, the detection element 140 can detect whether there is water in the water storage cup 800.

[0056] In one embodiment, the exhaust pipe 110 is connected to the bottom surface of the water storage cup 800, or as... Figure 3 , Figure 7 and Figure 8 As shown, the vent pipe 110 is connected to the side wall of the water storage cup 800. In this embodiment, the vent pipe 110 is connected below the flat filter screen inside the water storage cup 800. Optionally, the vent pipe 110 is connected to the bottom end of the side wall of the water storage cup 800, such as... Figure 7 and Figure 8 As shown, in this embodiment, the axial direction of one end of the exhaust pipe 110 near the water storage cup 800 is parallel to the bottom surface of the water storage cup 800.

[0057] like Figure 6As shown, in one embodiment, the exhaust pipe 110 includes a base plate 114 located at the lowest point, below the exhaust inlet 11211 and the exhaust fan 150. The base plate 114 has a protrusion 1141 extending toward the inner wall of the exhaust channel 111. Preferably, the height of the protrusion 1141 is not less than 3 mm. The protrusion 1141 has an overflow port 1142, which connects the exhaust channel 111 and the outside. This allows residual water in the water storage cup 800 to flow into the exhaust channel 111 after the seal of the first seal 121 fails. At this time, the residual water collects on the base plate 114 at the lowest point of the exhaust pipe 110, and when the thickness of the residual water exceeds the protrusion 1141, it flows to the outside from the overflow port 1142, thus preventing the residual water from flowing to the exhaust fan 150 or other electrical components and causing failure.

[0058] In some embodiments, during the drying and storage process of the dishwasher 10, the remaining water in the water storage cup 800 can be introduced into the exhaust pipe 110. At this time, the remaining water collects on the bottom plate 114. When the exhaust device 100 starts to exhaust, there is still airflow in the exhaust pipe 110 above the remaining water. During the exhaust process, the airflow speed is fast, which is more conducive to the evaporation of the remaining water.

[0059] like Figure 5 and Figure 6 As shown, in one embodiment, the exhaust pipe 110 includes an intake pipe 112 and an exhaust pipe 113 spaced apart. The intake pipe 112 is connected to the return water area 810. In this embodiment, the intake pipe 112 is composed of a first pipe 1121 and a second pipe 1122. The exhaust pipe 113 is connected to the outside. The drainage device 600 also includes an exhaust fan 150. The two ends of the exhaust fan 150 are respectively connected to the intake pipe 112 and the exhaust pipe 113 and together with the exhaust pipe 110 define the exhaust path.

[0060] Combination Figure 5 , Figure 6 and Figure 9 As shown, in one embodiment, the area of ​​the exhaust channel 111 located at the end of the exhaust pipe 113 near the exhaust fan 150 is A, and the area of ​​the exhaust channel 111 located at the end of the exhaust pipe 113 away from the exhaust fan 150 is a, where A > a. The airflow is accelerated by the gradually narrowing exhaust channels 111. In this embodiment, the end of the exhaust pipe 113 away from the exhaust fan 150 is a flat-nozzle exhaust port, which effectively increases the exhaust velocity, allowing the exhaust to be discharged further. In this embodiment, At this point, the acceleration effect of the exhaust pipe 113 on the airflow is maximized.

[0061] Compared to the prior art where the exhaust duct and exhaust fan are located on the side wall of the washing space 210, in this embodiment, the exhaust pipe 110 is located inside the base 700. The length of the exhaust path and the exhaust fan 150 are not limited by the thickness of the side wall of the washing space 210. The exhaust path can be shortened by directly connecting the exhaust pipe 110 to the water storage cup 800. The exhaust fan 150 can be selected without being limited by its specifications, thereby increasing the wind pressure of the exhaust fan 150. This will improve the exhaust air volume and wind pressure, which is beneficial to improving exhaust efficiency and saving energy.

[0062] like Figure 9 As shown, there is a gap between the upper end of the kick plate 400 and the lower end of the door 300 in the closed state. The gap between the kick plate 400 and the door 300 is defined as the exhaust gap. The end of the exhaust pipe 113 away from the exhaust fan 150 is set towards the exhaust gap, which improves the problem in the prior art where the tail end of the exhaust channel 111 is blocked by the door 300 or the kick plate 400, causing the airflow to carry water vapor and blow it onto the surface of the kick plate 400, thus generating condensation.

[0063] In such Figure 10 In another embodiment shown, the difference from the above embodiment is that the structure of the exhaust device 100 is different. In this embodiment, the exhaust device 100 includes an exhaust pipe 110 with an exhaust channel 111, and the return water area 810 and the exhaust channel 111 are connected to form an exhaust path. At least a portion of the exhaust channel 111 in the exhaust path is higher than the normal working liquid level of the dishwasher 10. The end of the exhaust channel 111 away from the water storage cup 800 is connected to the outside. Preferably, the exhaust pipe 110 includes a hanging section 115 that is higher than the normal working liquid level of the dishwasher 10, so that the water storage cup 800 and the exhaust channel 111 form a communicator. The higher hanging section 115 prevents residual water in the return water area 810 and the washing space 210 from flowing to the downstream of the exhaust channel 111 (the downstream part of the hanging section 115) and causing damage to electrical components such as the exhaust fan located downstream of the exhaust channel 111.

[0064] A method for controlling an exhaust device 100 for a dishwasher 10, acting on the exhaust device 100 as described in any of the above embodiments, in combination with Figure 11 As shown, the control method includes the following steps: determining whether there is water in the water storage cup 800, optionally by using the detection element 140 provided in this application. In other embodiments, a variable frequency motor can also be installed in the water storage cup 800, and the presence of water in the water storage cup 800 can be confirmed by detecting the load of the variable frequency motor. If the variable frequency motor has power, it is determined that there is no water; if the variable frequency motor has no power, it is determined that there is water.

[0065] If there is residual water in the water reservoir 800, the water reservoir 800 is drained. In this embodiment, the drain device 600 in the dishwasher 10 is controlled to empty the water in the water reservoir 800. Optionally, the detection element 140 detects in real time whether there is water in the water reservoir 800. When there is no residual water in the water reservoir 800, the exhaust passage 111 is opened by controlling the opening and closing device 120 to connect the water reservoir 800 to the outside, and the exhaust fan 150 drives the gas in the washing space 210 to flow to the outside through the exhaust path.

[0066] The exhaust device 100 provided in the above solution, by setting an exhaust pipe 110 directly connected to the water storage cup 800, allows the airflow in the washing space 210 to pass through the water storage cup 800, which is the lowest temperature and highest humidity point in the washing space 210, thereby preferentially exhausting the lower temperature airflow, thus avoiding the increase in drying energy consumption caused by the exhaust of hot airflow; at the same time, the airflow carries more water vapor when passing through the water storage cup 800 with the highest humidity, thereby accelerating the discharge of residual water in the water storage cup 800, and thus improving the overall drying effect of the washing space 210 of the dishwasher 10.

[0067] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A dishwasher (10), the dishwasher (10) comprising: The inner tank (200) has a washing space (210) inside; A water storage cup (800) is located below the inner liner (200) and includes a return water area (810) communicating with the washing space (210); An air intake device (500) is used to supply the washing space (210) with gas for drying; An exhaust device (100) is used to exhaust the gas in the washing space (210); The air intake device (500) is connected to the washing space (210), and the exhaust device (100) is connected to the water return area (810), forming an airflow path that passes sequentially through the air intake device (500), the washing space (210), the water return area (810), and the exhaust device (100).

2. The dishwasher (10) according to claim 1, characterized in that, The exhaust device (100) includes an exhaust pipe (110), one end of which is provided with an exhaust inlet (11211) that connects to the return water area (810), and the other end is provided with an exhaust outlet (1131) that connects to the outside. The interior of the exhaust pipe (110) is hollow to form an exhaust channel (111) that connects the exhaust inlet (11211) and the exhaust outlet (1131).

3. The dishwasher (10) according to claim 2, characterized in that, The exhaust device (100) includes an opening and closing device (120) configured to be movably disposed inside the exhaust passage (111) between an obstructed position and an open position. When the opening and closing device (120) is in the obstructed position, the exhaust passage (111) is disconnected; when the opening and closing device (120) is in the open position, the exhaust passage (111) is unobstructed.

4. The dishwasher (10) according to claim 3, characterized in that, The exhaust pipe (110) includes a first pipe (1121) and a second pipe (1122). The exhaust inlet (11211) is located at the end of the first pipe (1121) away from the second pipe (1122). The opening and closing device (120) is movably connected to the first pipe (1121) or the second pipe (1122) so that the first pipe (1121) and the second pipe (1122) can be connected on and off.

5. The dishwasher (10) according to claim 4, characterized in that, The first pipe (1121) is connected to the bottom surface of the water storage cup (800) and is set perpendicular to the bottom surface.

6. The dishwasher (10) according to claim 3, characterized in that, The exhaust device (100) further includes a drive member (130) for driving the opening and closing device (120) to move, the drive member (130) being located on the side of the opening and closing device (120) away from the exhaust inlet (11211).

7. The dishwasher (10) according to claim 2, characterized in that, The exhaust pipe (110) is connected to the bottom surface of the water storage cup (800), or the exhaust pipe (110) is connected to the side wall of the water storage cup (800).

8. The dishwasher (10) according to claim 2, characterized in that, The air intake device (500) includes an air inlet (510) connected to the washing space (210). The air inlet (510) is located on the peripheral wall of the washing space (210), and the air intake device (500), the washing space (210), and the exhaust channel (111) form a circulation loop.

9. The dishwasher (10) according to claim 1, characterized in that, The dishwasher (10) includes a detection element (140) for detecting temperature and humidity, and the detection element (140) is located in the airflow path and acts on the water reservoir (800).

10. The dishwasher (10) according to claim 1, characterized in that, The dishwasher (10) includes a detection element (140) for detecting temperature and humidity, and the detection element (140) is located in the airflow path and acts at the connection between the exhaust device (100) and the return water area (810).

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