Dishwasher

Abstract

The utility model relates to a dishwasher. The dish-washing machine comprises an inner container, a door body, a base, a skirting board and an exhaust air duct. The interior of the inner container is hollow to form a cleaning cavity. The skirting board is connected to the base and located below the door body, and the skirting board and the door body in the closed state are arranged at intervals in the vertical direction to form an exhaust gap. The exhaust duct is connected to the base, an exhaust channel communicating with the cleaning cavity is formed in the exhaust duct, and the exhaust duct is provided with an exhaust port communicating with the exhaust channel and facing the exhaust gap. According to the scheme, the airflow is guided to penetrate through the exhaust gap in the extending direction of the peripheral wall, so that the airflow is prevented from encountering the skirting board and the door body, and the problem that condensed water is formed due to condensation at the skirting board and the door body is avoided.

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, as well as some odors caused by detergent. Therefore, it is necessary to ventilate the dishwasher.

[0003] Dishwashers vent internal gases to the outside via an exhaust duct, which is typically located within the inner wall of the dishwasher's drum in existing technology. However, the narrow sidewall results in a long exhaust duct, and this narrow duct also limits the choice of exhaust fan specifications, leading to high resistance and limited fan pressure and airflow. Furthermore, the exhaust outlet is obstructed by the dishwasher door and kickboard, causing condensation to form on the kickboard surface as the airflow carries moisture. Summary of the Invention

[0004] Therefore, it is necessary to provide a dishwasher that addresses the problem of condensation easily forming at the dishwasher's exhaust port.

[0005] A dishwasher includes an inner tub, a door, a base, a kick plate, and an exhaust duct. The inner tub is hollow, forming a cleaning chamber. The door covers the inner tub and has an open state and a closed state. The base is located below the inner tub. The kick plate is connected to the base and located below the door, with the kick plate and the closed door vertically spaced to form an exhaust gap. The exhaust duct is connected to the base, and its interior has an exhaust channel communicating with the cleaning chamber. The exhaust duct also has an exhaust port communicating with the exhaust channel and facing the exhaust gap.

[0006] In one embodiment, the end of the exhaust channel near the exhaust port is a tail end channel, the peripheral wall of the tail end channel is inclined relative to the vertical and the extension direction of the peripheral wall passes through the exhaust gap.

[0007] In one embodiment, the exhaust duct further includes an exhaust fan that acts on and accelerates the airflow within the exhaust passage. The airflow direction within the exhaust passage is from the cleaning chamber toward the exhaust port. The exhaust passage also includes an upstream end located upstream of the exhaust fan and a downstream end located downstream of the exhaust fan. The tail end passage is located at the downstream end away from the exhaust fan.

[0008] In one embodiment, the tail end channel gradually decreases in vertical height along the airflow direction.

[0009] In one embodiment, the cross-sectional area of ​​the end of the tail channel facing the exhaust fan perpendicular to the airflow direction is A, and the cross-sectional area of ​​the exhaust port perpendicular to the airflow direction is a, wherein A > a.

[0010] In one embodiment, the

[0011] In one embodiment, the peripheral wall includes an upper inner wall and a lower inner wall disposed opposite to each other. The upper inner wall corresponding to the tail end channel is the tail end upper wall, and the lower inner wall corresponding to the tail end channel is the tail end lower wall. Both the tail end upper wall and the tail end lower wall are inclined upward.

[0012] In one embodiment, the gap height between the extension line of the upper wall of the tail end and the top of the kick plate is H; the gap height between the extension line of the lower wall of the tail end and the top of the kick plate is S, wherein S≥H.

[0013] In one embodiment, the height of the exhaust gap is L, the

[0014] In one embodiment, the length of the tail channel gradually increases in the lateral direction along the airflow direction, and the lateral direction is perpendicular to both the airflow direction and the vertical direction.

[0015] In one embodiment, the exhaust duct further includes a guide member disposed in the tail end channel, the guide member being arranged vertically and the spacing between adjacent guide members gradually increasing in length in the transverse direction along the airflow direction.

[0016] In one embodiment, the dishwasher further includes a water reservoir located on the base, the water reservoir including a water storage space communicating with the cleaning chamber, and the exhaust passage communicating with the water storage space.

[0017] In the above solution, the exhaust gap between the door and the kick plate serves as the channel for exhaust airflow. Furthermore, by setting an inclined peripheral wall at the end of the exhaust channel, the inclined peripheral wall guides the airflow within the end channel, directing the airflow along the extension direction of the peripheral wall through the exhaust gap. This prevents the airflow from encountering the kick plate and the door, thus avoiding the problem of condensation at the kick plate and the door. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a dishwasher according to one embodiment of this application.

[0019] Figure 2 for Figure 1 A partial structural diagram of a dishwasher.

[0020] Figure 3 for Figure 1 A schematic diagram showing the fit between the exhaust duct and the exhaust gap.

[0021] Figure 4 for Figure 2 A schematic diagram of the exhaust duct structure.

[0022] Figure 5 for Figure 4 Cross-sectional structure diagram of the central exhaust duct Figure 1 .

[0023] Figure 6 for Figure 4 Cross-sectional structure diagram of the central exhaust duct Figure 2 .

[0024] Explanation of reference numerals in the attached figures:

[0025] 10. Dishwasher; 100. Inner tub; 200. Door; 300. Base; 400. Cleaning chamber; 500. Kickboard; 600. Exhaust gap; 700. Exhaust duct; 710. Exhaust channel; 711. Tail end channel; 712. Upstream end; 713. Downstream end; 720. Exhaust port; 730. Exhaust fan; 740. Peripheral wall; 741. Upper inner wall; 7411. Tail end upper wall; 742. Lower inner wall; 7421. Tail end lower wall; 750. Air guide; 760. Bent side wall; 800. Water reservoir; 810. Water storage space; 820. Drainage device; 900. Air intake device. Detailed Implementation

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] See Figure 1 , Figure 1 A schematic diagram of the structure of a dishwasher 10 according to an embodiment of this application is shown, in conjunction with... Figure 2 As shown, Figure 2 The diagram shows a partial structural schematic of a dishwasher 10 according to an embodiment of this application. The dishwasher 10 provided in this application includes an inner liner 100, a door 200, a base 300, a kick plate 500, and an exhaust duct 700.

[0033] Among them, such as Figure 2 As shown, the inner liner 100 is hollow to form a cleaning cavity 400 for washing. Combined with Figure 1 The door 200 covers the inner liner 100, and the door 200 has an open state (not shown) and a closed state (e.g., ...). Figure 1 As shown), exemplarily, the bottom end of the door 200 is rotatably connected to the inner liner 100 to rotate relative to the door 200. When the door 200 is in the open state, the door 200 flips outward. Figure 1 and Figure 2 As shown, the base 300 is located below the inner liner 100. Figure 1 As shown, the kick plate 500 is connected to the base 300 and located below the door 200, as... Figure 1 and Figure 3 As shown, the kick plate 500 and the door 200 in the closed state are vertically spaced apart, and the gap between the kick plate 500 and the door 200 forms an exhaust gap 600.

[0034] like Figure 2 As shown, in one embodiment, the dishwasher 10 also includes a water reservoir 800 located on the base 300. The water reservoir 800 includes a water storage space 810 communicating with the cleaning chamber 400. 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 2 As shown, the dishwasher 10 also includes a drain device 820 that communicates with the water storage space 810 and is used to drain the remaining water in the water storage space 810.

[0035] like Figure 1As shown, in one embodiment, the dishwasher 10 further includes an air intake device 900 for guiding external gas into the cleaning chamber 400 and forming a circulation loop between the outside and the cleaning chamber 400 with the exhaust duct 700. In this embodiment, the air intake device 900 is connected to the outer side wall of the inner tank 100, and the air intake device 900 includes an air inlet communicating with the cleaning chamber 400, the air inlet being located on the side wall of the cleaning chamber 400.

[0036] The exhaust duct 700 is connected to the base 300, in such a way Figure 2 In the illustrated embodiment, the exhaust duct 700 is located inside the base 300 and extends through the front end face of the base 300, protruding out of the base 300. The exhaust duct 700 has an exhaust channel 710 communicating with the cleaning chamber 400; specifically, the exhaust channel 710 communicates with the water storage space 810. The exhaust channel 710 also communicates with the outside, allowing the exhaust channel 710 to discharge airflow from the cleaning chamber 400 through the water storage space 810 and the exhaust channel 710 to the outside of the dishwasher 10. Compared to the prior art where the exhaust duct 700 and exhaust fan 730 are located on the side wall of the inner cavity, in this embodiment, the exhaust duct 700 is located inside the base 300. The length of the exhaust path and the exhaust fan 730 are not limited by the thickness of the side wall of the inner cavity. The exhaust path can be shortened by directly connecting the exhaust duct 700 to the water storage cup 800. The exhaust fan 730 can be selected without being limited by its specifications, thereby increasing the air pressure of the exhaust fan 730. This will improve the exhaust air volume and air pressure, which is beneficial to improving exhaust efficiency and saving energy.

[0037] like Figure 3 and Figure 4 As shown, the exhaust duct 700 has an exhaust port 720 that connects to the exhaust channel 710 and faces and connects to the exhaust gap 600. (See reference...) Figure 5 The end of the exhaust passage 710 near the exhaust port 720 is the tail passage 711. The peripheral wall 740 of the tail passage 711 is inclined relative to the vertical and the extension direction of the peripheral wall 740 passes through the exhaust gap 600. The peripheral wall 740 has a guiding effect on the airflow in the tail passage 711, and can guide the airflow to pass through the exhaust gap 600 along the extension direction of the peripheral wall 740, thereby avoiding the airflow from encountering the kick plate 500 and the door 200, and avoiding the problem of condensation at the kick plate 500 and the door 200.

[0038] like Figure 4 and Figure 5As shown, in one embodiment, the exhaust duct 700 further includes an exhaust fan 730, which acts on and accelerates the airflow within the exhaust channel 710. The airflow direction within the exhaust channel 710 is from the self-cleaning chamber 400 toward the exhaust port 720. The exhaust channel 710 also includes an upstream end 712 located upstream of the exhaust fan 730 and a downstream end 713 located downstream of the exhaust fan 730. A tail end channel 711 is located at the end of the downstream end 713 away from the exhaust fan 730. The airflow in the tail end channel 711 is a high-speed airflow formed after being accelerated by the exhaust fan 730. The high-speed airflow will travel a longer path along the extension direction of the peripheral wall 740 from the tail end of the exhaust port 720. Due to the water vapor carried in the airflow and the diffusion characteristic of the airflow itself, if the airflow speed is too slow, the airflow will diffuse to the surface of the door 200 and the kick plate 500 before passing through the exhaust gap 600, thus generating condensation. However, the high-speed airflow ejected from the exhaust port 720 will flow along the extension direction of the peripheral wall 740, and will only begin to diffuse after passing through the exhaust gap 600. At this time, the diffusion space is larger, and condensation will not form on the surface of the door 200 and the kick plate 500.

[0039] like Figure 4 and Figure 5 As shown, in one embodiment, the height of the tail end channel 711 gradually decreases along the airflow direction in order to reduce the height of the exhaust port 720 by gradually reducing the height of the tail end channel 711, so as to adapt to the height of the exhaust gap 600, so that the height of the exhaust port 720 is as small as possible smaller than the height of the exhaust gap 600, and the airflow ejected from the exhaust port 720 can pass through the exhaust gap 600 as much as possible.

[0040] like Figure 4 and Figure 5 As shown, in one embodiment, the cross-sectional area of ​​the end of the tail end channel 711 facing the exhaust fan 730 perpendicular to the airflow direction is A, and the cross-sectional area of ​​the exhaust port 720 perpendicular to the airflow direction is a, where A > a, so that the area of ​​the tail end channel 711 is reduced. As the airflow passes through the tail end channel 711, the area that the airflow can occupy gradually decreases, thereby increasing the pressure of the airflow and achieving the effect of pressurizing and accelerating the airflow.

[0041] In one embodiment, At this point, the exhaust flow rate of the exhaust port 720 and the acceleration effect of the airflow from the tail end channel 711 are taken into account.

[0042] like Figure 5As shown, in one embodiment, the peripheral wall 740 includes an upper inner wall 741 and a lower inner wall 742 disposed opposite to each other. In this embodiment, the exhaust channel 710 has a quadrilateral cross-section. The peripheral wall 740 also includes two side surfaces (not shown) connecting the upper inner wall 741 and the lower inner wall 742. The upper inner wall 741 corresponding to the tail end channel 711 is the tail end upper wall 7411, and the lower inner wall 742 corresponding to the tail end channel 711 is the tail end lower wall 7421. Both the tail end upper wall 7411 and the tail end lower wall 7421 are inclined upward to accommodate the exhaust gap 600 of the exhaust duct 700 located at the bottom facing the kick plate 500.

[0043] In other embodiments, the upper tail wall 7411 and the lower tail wall 7421 may both be inclined downwards, or the upper tail wall 7411 may be inclined downwards and the lower tail wall 7421 may be inclined upwards, or the peripheral wall 740 may be an arc surface, that is, the tail channel 711 may be a cylindrical channel with a reduced diameter.

[0044] like Figure 3 As shown, in one embodiment, the height of the gap between the extension line of the upper wall 7411 at the tail end and the top of the kick plate 500 is H, that is, when the airflow flowing along the upper wall 7411 at the tail end passes through the exhaust gap 600, the distance between the high-speed airflow and the top of the kick plate 500 is H; the height of the gap between the extension line of the lower wall 7421 at the tail end and the top of the kick plate 500 is S, and when the airflow flowing along the lower wall 7421 at the tail end passes through the exhaust gap 600, the distance between the high-speed airflow and the top of the kick plate 500 is S, S≥H, as shown. Figure 3 As shown, at this time, the extension lines of the upper wall 7411 and the lower wall 7421 intersect when passing through the exhaust gap 600, so that the airflow ejected from the exhaust port 720 flows to a wider space after passing through the exhaust gap 600, thus avoiding airflow concentration.

[0045] In one embodiment, the height of the exhaust gap 600 is L. When the high-speed airflow is ejected from the exhaust port 720, it flows within a range between the distance H and S between the high-speed airflow and the top of the kick plate 500 as it passes through the exhaust gap 600. In other embodiments, it may also be... At this time, the airflow flowing along the upper wall 7411 and the lower wall 7421 of the tail end both pass through the middle of the exhaust gap 600.

[0046] like Figure 4 As shown, in one embodiment, the length of the tail channel 711 gradually increases in the lateral direction along the airflow direction, and the lateral direction is perpendicular to both the airflow direction and the vertical direction. Figure 5As shown, at least one sidewall of the peripheral wall 740 is a bent sidewall 760, which bends outward to increase the lateral length. By increasing the lateral length, the height of the tail end channel 711 can be further limited to accommodate the exhaust gap 600, while also taking into account the exhaust flow rate, i.e., exhaust efficiency, of the exhaust port 720.

[0047] like Figure 6 As shown, in one embodiment, the exhaust duct 700 further includes a guide member 750 disposed within the tail end channel 711. The guide member 750 is arranged vertically, and the spacing between adjacent guide members 750 gradually increases in the lateral length along the airflow direction, such as... Figure 6 As shown, the guide member 750 evenly divides the exhaust channel 710, and the bending direction and slope of the guide member 750 are consistent with those of the bent sidewall 760.

[0048] In the dishwasher 10 provided in this application, the exhaust gap 600 between the door 200 and the kick plate 500 serves as the channel for exhaust airflow 700. Furthermore, by providing an inclined peripheral wall 740 at the end channel 711 of the exhaust channel 710, the inclined peripheral wall 740 guides the airflow within the end channel 711, guiding the airflow along the extension direction of the peripheral wall 740 through the exhaust gap 600. This prevents the airflow from encountering the kick plate 500 and the door 200, thus avoiding the problem of condensation at the kick plate 500 and the door 200.

[0049] 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.

[0050] 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, characterized in that, The dishwasher includes: The inner liner has a hollow interior forming a cleaning cavity; The door body covers the inner liner, and the door body has an open state and a closed state; The base is located below the inner liner; A kick plate is connected to the base and located below the door body. The kick plate and the door body in the closed state are vertically spaced to form an exhaust gap. An exhaust duct is connected to the base. The interior of the exhaust duct is provided with an exhaust channel that connects to the cleaning chamber. The exhaust duct has an exhaust port that connects to the exhaust channel and faces the exhaust gap.

2. The dishwasher according to claim 1, characterized in that, The exhaust channel has a tail end near the exhaust port, and the peripheral wall of the tail end channel is inclined relative to the vertical and the extension direction of the peripheral wall passes through the exhaust gap.

3. The dishwasher according to claim 2, characterized in that, The exhaust duct also includes an exhaust fan, which acts on and accelerates the airflow within the exhaust channel. The airflow direction within the exhaust channel is from the cleaning chamber toward the exhaust port. The exhaust channel also includes an upstream end located upstream of the exhaust fan and a downstream end located downstream of the exhaust fan. The tail end channel is located at the downstream end away from the exhaust fan.

4. The dishwasher according to claim 3, characterized in that, The tail end channel gradually narrows in height along the airflow direction.

5. The dishwasher according to claim 3 or 4, characterized in that, The cross-sectional area of ​​the end of the tail channel facing the exhaust fan and perpendicular to the airflow direction is A, and the cross-sectional area of ​​the exhaust port perpendicular to the airflow direction is a, wherein A > a.

6. The dishwasher according to claim 5, characterized in that, The 7. The dishwasher according to claim 2 or 4, characterized in that, The peripheral wall includes an upper inner wall and a lower inner wall arranged opposite to each other. The upper inner wall corresponding to the tail end channel is the tail end upper wall, and the lower inner wall corresponding to the tail end channel is the tail end lower wall. Both the tail end upper wall and the tail end lower wall are inclined upward.

8. The dishwasher according to claim 7, characterized in that, The height of the gap between the extension line of the upper wall of the tail end and the top of the kick plate is H; the height of the gap between the extension line of the lower wall of the tail end and the top of the kick plate is S, wherein S≥H.

9. The dishwasher according to claim 8, characterized in that, The height of the exhaust gap is L.

10. The dishwasher according to claim 3, characterized in that, The length of the tail end channel gradually increases in the lateral direction along the airflow direction, and the lateral direction is perpendicular to both the airflow direction and the vertical direction.

11. The dishwasher according to claim 10, characterized in that, The exhaust duct also includes a guide member disposed in the tail end channel. The guide member is arranged vertically and the spacing between adjacent guide members gradually increases in the lateral length along the airflow direction.

12. The dishwasher according to claim 10, characterized in that, The dishwasher also includes a water reservoir located on the base, the water reservoir having a water storage space communicating with the cleaning chamber, and the exhaust channel communicating with the water storage space.

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