A dishwasher and a control method thereof

Abstract

The present application relates to a kind of dish washer and its control method, dish washer includes cabinet, front side is open;Door body, can be movably arranged at the opening of cabinet, to open or close cabinet;Air inlet assembly, including air inlet pipe, located in the outside of cabinet, the air inlet pipe is equipped with with its inside communication air inlet and first air outlet;Fan, for driving airflow from air inlet to flow to first air outlet;Air outlet pipe, air inlet end is communicated with first air outlet, and the air outlet end of air outlet pipe is located in cabinet;Moving plate, transversely arranged and can be movably arranged in cabinet along front and back direction, the moving plate is equipped with air outlet hole, the air outlet hole is located in the flow path of the airflow that the air outlet end of air outlet pipe flows out, and airflow coverage area is large.

Description

Technical Field

[0001] This invention relates to the field of dishwasher technology, and more specifically to a dishwasher and its control method. Background Technology

[0002] Dishwashers are becoming increasingly common in kitchens. After the dishes are washed, there is a lot of moisture in the washing chamber of the dishwasher. In order to dry the dishes and prevent the growth of bacteria, a drying component is installed on the outer wall of the cabinet to heat the airflow in the washing chamber. The drying component inputs hot airflow into the washing chamber to dry the dishes.

[0003] For example, the Chinese invention patent CN202320953636.2 (publication number CN220344366U) discloses a "Washing Machine," in which the drying assembly includes an air inlet duct, a heating element, and a second airflow drive component. The air inlet duct has a second air inlet and a second air outlet. The second air inlet is in fluid communication with the outside environment, and the second air outlet is in fluid communication with a second air inlet hole on the housing. Along the airflow direction, the second air outlet is located downstream of the second air inlet. The second airflow drive component is installed on the air inlet duct and is used to drive the outside airflow through the air inlet duct to the second air outlet. In this embodiment, the second airflow drive component is a second fan, and the air outlet of the second fan faces the second air inlet of the air inlet duct, and the air inlet of the second fan is in fluid communication with the outside environment.

[0004] The heating element can be a PTC heating element, installed inside the air inlet duct, located in the airflow path from the second air inlet to the second air outlet. The heating element heats the airflow entering the air inlet duct into hot air, which then enters the washing chamber to dry the tableware.

[0005] Currently, most air inlet ducts are fixed to the cabinet with nuts, and the position and area of ​​the air inlet are fixed. This results in a small air intake coverage area for the airflow entering from the air inlet. Furthermore, due to the obstruction of tableware, some hot air is blocked back, causing turbulence. It also causes the speed of hot air entering the washing chamber to decrease rapidly, and it can only slowly cover the tableware through pressure gradient, resulting in low drying efficiency.

[0006] In addition, for some large-capacity dishwashers, users are used to storing the dishes inside the dishwasher after washing. In this case, if the number of dishes used per meal is small, the stored dishes need to be washed together with the dishes the next time, which will waste water and electricity.

[0007] To address the aforementioned issues, Chinese invention patent CN202023348649.2 (publication number CN215383808U) discloses a dishwasher, comprising: a cabinet having an inner cavity; a partition assembly disposed within the inner cavity of the cabinet for dividing the inner cavity into relatively independent upper and lower spaces; the partition assembly includes: a fixed plate, horizontally positioned in the middle of the cabinet and connected to the inner side wall of the cabinet; a movable plate, movably disposed on the fixed plate for cooperating with the fixed plate to separate or connect the upper and lower spaces; further comprising: a surrounding plate disposed on the lower wall of the fixed plate, forming a relatively independent mounting compartment between the surrounding plate and the inner wall of the cabinet; and a drive component disposed in the mounting compartment, with a power output shaft passing through the surrounding plate and connected to the movable plate.

[0008] When the number of dishes to be washed is small, the movable plate of the partition assembly moves relative to the fixed plate to separate the upper and lower spaces. The upper space can be used to store the washed dishes, while the lower space can be sprayed and washed separately. This is the "half-cavity washing" mode, which not only makes full use of the cabinet space but also helps to save water and electricity. When the number of dishes to be washed is large, the movable plate of the partition assembly moves relative to the fixed plate to connect the upper and lower spaces. This is the "full-cavity washing" mode, which washes the dishes in both the upper and lower spaces simultaneously.

[0009] However, the current partition assemblies only serve to separate the internal space of the enclosure; they are single-function and have no other additional features. Summary of the Invention

[0010] The first technical problem to be solved by the present invention is to provide a dishwasher that can reduce the number of dead spots in the drying process, in light of the current state of the prior art.

[0011] The second technical problem to be solved by the present invention is to provide a control method for the dishwasher described above, in view of the current state of the prior art.

[0012] The technical solution adopted by the present invention to solve the first technical problem mentioned above is: a dishwasher, comprising...

[0013] The box-shaped structure has an open front.

[0014] The door is movably located at the opening of the box, thereby opening or closing the box;

[0015] Air intake components, including

[0016] An air inlet pipe is located outside the housing, and the air inlet pipe is provided with an air inlet and a first air outlet that are connected to the interior of the housing;

[0017] The fan is used to drive the airflow from the air inlet to the first air outlet.

[0018] Its characteristic is that it also includes

[0019] The air outlet duct has its air inlet end connected to the first air outlet, and its air outlet end is located inside the housing.

[0020] A movable plate is arranged horizontally and can move in the front-to-back direction in the housing. The movable plate is provided with an air outlet, which is located on the flow path of the airflow from the air outlet end of the air outlet pipe.

[0021] To further increase the airflow coverage area, the air outlet includes a first air outlet located on the side of the moving plate and a second air outlet located at the front of the moving plate. Thus, as the moving plate moves, a portion of the airflow flows out from the first air outlet on the side of the moving plate, and another portion flows out from the second air outlet at the front of the moving plate, resulting in a wide coverage area.

[0022] In the above scheme, the air outlet end of the air outlet pipe faces forward, the air outlet pipe is located on the left or right side of the fixed plate, the side of the movable plate corresponding to the air outlet pipe has a side plate, and the first air outlet is provided on the side plate and located above and / or below the movable plate.

[0023] When the movable plate is in the second position, the first air outlet is blocked by the side wall of the air outlet pipe. When the movable plate is in the first position, the first air outlet is offset from the air outlet pipe in the left-right direction, and the first air outlet is located in front of the air outlet end of the air outlet pipe. Thus, when the movable plate moves forward from the second position, the airflow from the air outlet pipe will escape into the first air outlet as it flows forward, and then flow to the top and / or bottom of the movable plate.

[0024] Preferably, the front of the movable plate is provided with an airflow channel extending in the left-right direction. The airflow channel is also located on the flow path of the airflow from the air outlet end of the air outlet pipe, and the second air outlet is connected to the airflow channel. In this way, when the movable plate moves forward from the second position, the airflow from the air outlet pipe will escape into the first air outlet as it flows forward, and then flow to the top and / or bottom of the movable plate.

[0025] In order to maximize the coverage area of ​​the airflow, there are multiple first air outlets arranged at intervals along the front-to-back direction. Some of the first air outlets are located above the moving plate, while others are located below the moving plate.

[0026] In order to maximize the coverage area of ​​the airflow, there are multiple second air outlets arranged at intervals along the left and right direction, and at least two of the second air outlets have different orientations.

[0027] To further reduce drying dead zones, the air inlet duct is equipped with two second air outlets spaced vertically apart, and the side wall of the housing has two air passages spaced vertically apart. The upper air passage is located in the upper space, and the lower air passage is located in the lower space. The two second air outlets and the two air passages are connected one-to-one. In this way, the air passages and the air outlets on the moving plate are matched three-dimensionally, forming an airflow coverage area with a large area and minimizing drying dead zones.

[0028] Preferably, a fixed plate is laterally arranged at the rear of the housing. When the door is closed, a gap is formed between the fixed plate and the door. The movable plate can move forward to a first position or backward to a second position. When the movable plate is in the first position, it covers the gap. The movable plate and the fixed plate together constitute a partition assembly that divides the interior of the housing into an upper space and a lower space. When the movable plate is in the second position, it is at least partially offset vertically from the gap, allowing the upper and lower spaces to connect. In this way, the movable plate serves multiple purposes, not only enabling dynamic airflow but also working with the fixed plate to connect or separate the upper and lower spaces, achieving multiple functions and a simplified structure.

[0029] To improve the drying effect, a heating element is provided in the air inlet pipe.

[0030] To save energy, the housing is equipped with a controller. The housing contains sensors for detecting temperature and / or humidity, and a detector for detecting the position of the moving plate. Both sensors and the detector are electrically connected to the input of the controller, and the output of the controller is electrically connected to the heating element and the fan. When the moving plate is far from the air outlet and / or the tableware is not fully dried, the controller controls the heating element and fan to operate at higher power. Conversely, when the moving plate is close to the air outlet and / or the tableware is fully dried, the controller controls the heating element and fan to operate at lower power. This allows the power of the heating element and fan to be adjusted according to the position of the moving plate and the degree of dryness of the tableware, reducing energy waste.

[0031] The technical solution adopted by the present invention to solve the second technical problem mentioned above is as follows: the moving path of the moving plate is divided into a first part, a second part and a third part in a direction from front to back; the dishwasher also includes a timer electrically connected to the input terminal of the controller.

[0032] The control method includes the following steps:

[0033] (1) The sensor detects the initial temperature and / or initial humidity in the chamber and records it as S0;

[0034] (2) The moving plate moves, and the detector detects whether the position of the moving plate is at the third position. If yes, then proceed to step (3); otherwise, proceed to step (4).

[0035] (3) The controller controls the power of the fan to NL and the power of the heating element to PL, and then executes step (7);

[0036] (4) The detector detects whether the position of the moving plate is in the second part. If yes, then proceed to step (5); otherwise, proceed to step (6).

[0037] (5) The controller controls the power of the fan to NM and the power of the heating element to PM, and then executes step (7);

[0038] (6) The controller controls the power of the fan to NH and the power of the heating element to PH, and then executes step (7);

[0039] (7) The sensor detects the real-time temperature and / or humidity in the chamber and records it as S1. It determines whether S1 is less than the set parameter value. If yes, proceed to step (8); otherwise, proceed to step (2). The set parameter value is nS0, 0 <n<1;

[0040] (8) The timer detects the actual drying time T, and the controller determines whether T is less than the set drying time T0. If so, step (9) is executed. If not, the drying ends, and the moving plate moves to the first position or the second position and is positioned.

[0041] (9) The controller controls the power of the fan to NL, the power of the heating element to PL, and the moving plate moves to the first position or the second position and is positioned until T≥T0, and the drying ends;

[0042] The order is: NH > NM > NL; PH > PM > PL.

[0043] Compared with the prior art, the advantages of the present invention are as follows: The present invention sets an air outlet duct in the chamber and sets an air outlet hole connected to the air outlet duct on the moving plate. Because the moving plate can move back and forth, the airflow can be discharged at different positions, which can overcome the problem of airflow being blocked by tableware, improve the uniformity of the flow field inside the chamber, increase the area of ​​hot air covering the tableware, and the movement of the moving plate can accelerate the exchange of water vapor in the airflow around the tableware, thereby improving the drying efficiency of the tableware. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention;

[0045] Figure 2 for Figure 1 A schematic diagram of the structure from another direction;

[0046] Figure 3 for Figure 2 A partial structural diagram;

[0047] Figure 4 for Figure 3 A schematic diagram of the partition assembly;

[0048] Figure 5 for Figure 4 A cross-sectional view of the sealing strip;

[0049] Figure 6 for Figure 3 A schematic diagram of the air intake assembly;

[0050] Figure 7 This is a flowchart of the dishwasher control method. Detailed Implementation

[0051] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0052] like Figures 1-7 As shown, the dishwasher of this preferred embodiment includes a cabinet 1, a door, an air inlet assembly 2, and a partition assembly 3.

[0053] The front of the box 1 is open, and the door is movably located at the opening of the box 1, so as to open or close the box 1.

[0054] The partition assembly 3 includes a fixed plate 31 and a movable plate 32. The fixed plate 31 is horizontally arranged at the rear of the box 1. When the door is closed, a notch 33 is formed between the fixed plate 31 and the door. The movable plate 32 can move forward to a first position or backward to a second position. When the movable plate 32 is in the first position, it covers the notch 33. The movable plate 32 and the fixed plate 31 together constitute the partition assembly 3 that divides the interior of the box 1 into an upper space 12 and a lower space 13. When the movable plate 32 is in the second position, it is located above or below the fixed plate 31. The movable plate 32 and the notch 33 are at least partially offset vertically, so that the upper space 12 and the lower space 13 are connected. A dish rack is provided in both the upper space 12 and the lower space 13.

[0055] The above are existing technologies and will not be elaborated further here.

[0056] The air intake assembly 2 includes an air intake pipe 21, a fan 22, an air outlet pipe 23, and a heating element.

[0057] The air inlet duct 21 is located outside the housing 1. The air inlet duct 21 has an air inlet 211 and a first air outlet 212 that communicate with its interior. A fan 22 drives the airflow from the air inlet 211 to the first air outlet 212 and the second air outlet 213. In this embodiment, the air inlet of the fan 22 is connected to the outside, and the air outlet is connected to the air inlet 211. A heating element is installed in the air inlet duct 21 to heat the airflow entering from the outside and flowing through the air inlet duct 21, making the airflow entering the housing 1 hot air and improving the drying efficiency of the tableware. The heating element can be an existing PTC heating element.

[0058] The air inlet of the air outlet 23 is connected to the first air outlet 212, and the air outlet of the air outlet 23 is located in the housing 1, so that the airflow entering the air inlet 21 from the outside can flow into the housing 1 through the air outlet 23.

[0059] The movable plate 32 is horizontally arranged and movable in the housing 1 in the front-to-back direction. The movable plate 32 is provided with air outlets, which are located on the flow path of the airflow from the air outlet end of the air outlet pipe 23. In this embodiment, the air outlets include a first air outlet 321 on the side of the movable plate 32 and a second air outlet 322 on the front of the movable plate 32. As the movable plate 32 moves, a portion of the airflow flows out from the first air outlet 321 on the side of the movable plate 32, and another portion flows out from the second air outlet 322 on the front of the movable plate 32, covering a wide range.

[0060] The air outlet end of the air outlet duct 23 faces forward and is located on the left or right side of the fixed plate 31. The side of the movable plate 32 corresponding to the air outlet duct 23 has a side plate 320, and a first air outlet 321 is provided on the side plate 320. The first air outlet 321 is located above and / or below the movable plate 32. In this embodiment, there are multiple first air outlets 321 arranged sequentially at intervals along the front-back direction. Some of the first air outlets 321 are located above the movable plate 32, and other first air outlets 321 are located below the movable plate 32.

[0061] When the movable plate 32 is in the second position, the first air outlet 321 is blocked by the side wall of the air outlet duct 23. When the movable plate 32 is in the first position, the first air outlet 321 is offset from the air outlet duct 23 in the left-right direction, and the first air outlet 321 is located in front of the air outlet end of the air outlet duct 23. When the movable plate 32 moves forward from the second position, the airflow from the air outlet duct 23 will escape into the first air outlet 321 as it flows forward, and then flow to the top and / or bottom of the movable plate 32.

[0062] In addition, such as Figure 5As shown, the front of the movable plate 32 is provided with an airflow channel 323 extending in the left-right direction. The airflow channel 323 is also located on the flow path of the airflow from the air outlet end of the air outlet duct 23. The second air outlet 322 is connected to the airflow channel 323. Thus, when the movable plate 32 moves forward from the second position, the airflow from the air outlet duct 23 will flow forward and dissipate into the first air outlet 321, and then flow to the top and / or bottom of the movable plate 32.

[0063] In order to maximize the coverage area of ​​the airflow, there are multiple second air outlets 322 arranged sequentially and spaced apart in the left-right direction, and at least two of the second air outlets 322 have different orientations. The upper and lower walls of the airflow channel 323 are provided with second air outlets 322.

[0064] In this embodiment, the front part of the movable plate 32 is a sealing strip 324, and the airflow channel 323 is disposed on the sealing strip 324. When the movable plate 32 is in the first position, the sealing strip 324 abuts against the door body to ensure the sealing between the movable plate 32 and the door body.

[0065] In addition, the air inlet duct 21 is equipped with two second air outlets 213 spaced vertically, and the side wall of the housing 1 is equipped with two air passages 11 spaced vertically. The upper air passage 11 is located in the upper space 12, and the lower air passage 11 is located in the lower space 13. The two second air outlets 213 are connected to the two air passages 11 in a one-to-one correspondence. In this way, the two air passages 11 and the air outlets on the moving plate 32 are matched in three dimensions, forming an airflow coverage area with a large area and a small drying dead zone.

[0066] The housing 1 is equipped with a controller, a timer, a sensor for detecting temperature and / or humidity, and a detector for detecting the position of the moving plate 32. The timer, sensor, and detector are all electrically connected to the input terminal of the controller, and the output terminal of the controller is electrically connected to the heating element and the fan 22.

[0067] The timer, sensor, and detector can all use existing structures. For example, the sensor can be a temperature and humidity sensor, and the detector can be an infrared detector (which may include an infrared transmitter and an infrared receiver). Furthermore, the electrical connection method between the controller and the aforementioned components is existing technology and will not be described further here. In this embodiment, the sensor is capable of detecting the temperature and humidity within the housing 1.

[0068] The moving path of the moving plate 32 is divided into a first part, a second part, and a third part in the direction from front to back. The first part, the second part, and the third part can be formed by dividing the moving path of the moving plate 32 into three equal parts in the direction from front to back, or they can be divided into different parts.

[0069] like Figure 7As shown in the figure, the control method of the dishwasher in this embodiment includes the following steps:

[0070] (1) The sensor detects the initial temperature and / or humidity in the cabinet 1 and records it as S0;

[0071] (2) The moving plate 32 moves, and the detector detects whether the position of the moving plate 32 is in the third part. If so, step (3) is executed; if not, step (4) is executed;

[0072] (3) The controller controls the power of the blower 22 to be N-L and the power of the heating element to be P-L, and then step (7) is executed;

[0073] (4) The detector detects whether the position of the moving plate 32 is in the second part. If so, step (5) is executed; if not, step (6) is executed;

[0074] (5) The controller controls the power of the blower 22 to be N-M and the power of the heating element to be P-M, and then step (7) is executed;

[0075] (6) The controller controls the power of the blower 22 to be N-H and the power of the heating element to be P-H, and then step (7) is executed; Since it has been determined in steps (2) and (4) that the moving plate 32 is not in the third part and the second part, the moving plate 32 can only be in the first part at this time, and the distance from the air outlet pipe 23 is the farthest;

[0076] (7) The sensor detects the real-time temperature and / or humidity in the cabinet 1 and records it as S1, and judges whether S1 is less than the set parameter value. If so, step (8) is executed; if not, step (2) is executed; The set parameter value is nS0, 0 < n < 1. In this embodiment, n is 0.4;

[0077] (8) The timer detects the actual drying time T, and the controller judges whether T is less than the set drying time T0. If so, step (9) is executed; if not, the drying ends, and the moving plate 32 moves to the first position or the second position and is positioned (the moving plate is reset);

[0078] (9) The controller controls the power of the blower 22 to be N-L and the power of the heating element to be P-L, and the moving plate 32 moves to the first position or the second position and is positioned (the moving plate 32 is reset) until T≥T0, and the drying ends; "The drying ends" means that the heating element and the blower 22 stop working.

[0079] The above N-H > N-M > N-L; P-H > P-M > P-L.

[0080] Since the moving plate 32 moves to the front end, the air inlet duct between the air outlet duct 23 and the air outlet hole is the longest, and the resistance that needs to be overcome is also the greatest. Therefore, the speed of the fan 22 needs to be adjusted to the maximum N_H. Since the power of the heating element is determined by the flow rate of the fan 22, different fan speeds correspond to their respective heating element powers (this is the prior art). In this way, during the drying process, low speed will not match high heating element power, resulting in poor heat dissipation. Thus, the three fan speeds of high, medium and low correspond to three heating element powers. The fan speed depends on the position to which the moving plate 32 moves.

[0081] In other words, when the moving plate 32 moves to a position far from the air outlet and the air outlet end of the air outlet pipe 23 and / or the tableware is not dried to a high degree, the controller controls the heating element and the fan 22 to have a higher power; when the moving plate 32 moves to a position close to the air outlet and the air outlet end of the air outlet pipe 23 and / or the tableware is dried to a high degree, the controller controls the heating element and the fan 22 to have a lower power.

[0082] This allows the power of the heating element's fan 22 to be adjusted according to the position of the moving plate 32 and the degree of drying of the tableware, reducing energy waste. This intelligent drying sequence can achieve the best energy-saving solution while ensuring the drying effect, and can also cope with the impact of seasonal changes on the drying effect.

[0083] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Since the embodiments disclosed in this invention can be arranged in different directions, these terms indicating direction are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A dishwasher, comprising Box body (1), open at the front; The door is movably located at the opening of the box (1), thereby opening or closing the box (1); Air intake assembly (2), including An air inlet pipe (21) is located outside the housing (1). The air inlet pipe (21) is provided with an air inlet (211) and a first air outlet (212) that are connected to its interior. A fan (22) is used to drive airflow from the air inlet (211) to the first air outlet (212); Its features are, Also includes The air outlet pipe (23) has its air inlet end connected to the first air outlet (212), and the air outlet end of the air outlet pipe (23) is located in the box (1); A movable plate (32) is arranged horizontally and can move in the front and back direction in the housing (1). The movable plate (32) is provided with an air outlet, which is located on the flow path of the airflow from the air outlet end of the air outlet pipe (23).

2. The dishwasher according to claim 1, characterized in that: The air outlet includes a first air outlet (321) located on the side of the movable plate (32) and a second air outlet (322) located on the front of the movable plate (32).

3. The dishwasher according to claim 2, characterized in that: The air outlet end of the air outlet pipe (23) faces forward. The air outlet pipe (23) is located on the left or right side of the moving plate (32). The moving plate (32) has a side plate (320) on one side corresponding to the air outlet pipe (23). The first air outlet (321) is provided on the side plate (320). The first air outlet (321) is located above and / or below the moving plate (32). The movable plate (32) can move forward to a first position or backward to a second position. When the movable plate (32) is in the second position, the first air outlet (321) is blocked by the side wall of the air outlet pipe (23). When the movable plate (32) is in the first position, the first air outlet (321) is offset from the air outlet pipe (23) in the left and right directions, and the first air outlet (321) is located in front of the air outlet end of the air outlet pipe (23).

4. The dishwasher according to claim 3, characterized in that: There are multiple first air outlets (321) arranged sequentially at intervals along the front-back direction. Some of the first air outlets (321) are located above the movable plate (32), and the other part of the first air outlets (321) are located below the movable plate (32).

5. The dishwasher according to claim 2, characterized in that: The front of the movable plate (32) is provided with an airflow channel (323) extending in the left and right direction. The airflow channel (323) is also located on the flow path of the airflow flowing out from the air outlet end of the air outlet pipe (23). The second air outlet (322) is connected to the airflow channel (323).

6. The dishwasher according to claim 5, characterized in that: There are multiple second air outlets (322) arranged sequentially at intervals along the left and right direction, and at least two of the second air outlets (322) have different orientations.

7. The dishwasher according to claim 1, characterized in that: The air inlet pipe (21) is also provided with two second air outlets (213) spaced apart vertically. The side wall of the box (1) is provided with two air passages (11) spaced apart vertically. The upper air passage (11) is located in the upper space (12), and the lower air passage (11) is located in the lower space (13). The two second air outlets (213) are connected to the two air passages (11) one by one.

8. The dishwasher according to claim 1, characterized in that: A fixed plate (31) is horizontally arranged at the rear of the box (1). When the door is closed, a gap (33) is formed between the fixed plate (31) and the door. The movable plate (32) can move forward to a first position or backward to a second position. When the movable plate (32) is in the first position, the movable plate (32) covers the gap (33). The movable plate (32) and the fixed plate (31) together constitute a partition assembly (3) that divides the interior of the box (1) into an upper space (12) and a lower space (13). When the movable plate (32) is in the second position, the movable plate (32) and the gap (33) are at least partially offset vertically, so that the upper space (12) and the lower space (13) are connected.

9. The dishwasher according to any one of claims 1 to 8, characterized in that: The air inlet pipe (21) is equipped with a heating element.

10. The dishwasher according to claim 9, characterized in that: The housing (1) is equipped with a controller, and the housing (1) is equipped with a sensor for detecting temperature and / or humidity and a detector for detecting the position of the moving plate (32). The sensor and the detector are electrically connected to the input terminal of the controller, and the output terminal of the controller is electrically connected to the heating element and the fan (22).

11. A control method for a dishwasher according to claim 10, characterized in that: The moving path of the moving plate (32) is divided into a first part, a second part and a third part in a direction from front to back. The dishwasher also includes a timer electrically connected to the input terminal of the controller. The control method includes the following steps: (1) The sensor detects the initial temperature and / or initial humidity in the enclosure (1) and records it as S0; (2) The moving plate (32) moves, and the detector detects whether the position of the moving plate (32) is in the third part. If yes, then step (3) is executed; otherwise, step (4) is executed. (3) The controller controls the power of the fan (22) to be NL and the power of the heating element to be PL, and then executes step (7); (4) The detector detects whether the position of the moving plate (32) is in the second part. If yes, then proceed to step (5); if no, then proceed to step (6). (5) The controller controls the power of the fan (22) to be NM and the power of the heating element to be PM, and then executes step (7); (6) The controller controls the power of the fan (22) to be NH and the power of the heating element to be PH, and then executes step (7); (7) The sensor detects the real-time temperature and / or humidity in the enclosure (1) and records it as S1. It determines whether S1 is less than the set parameter value. If yes, proceed to step (8); if no, proceed to step (2). The set parameter value is nS0, 0 <n<1; (8) The timer detects the actual drying time T, and the controller determines whether T is less than the set drying time T0. If so, step (9) is executed. If not, the drying ends, and the moving plate moves to the first position or the second position and is positioned. (9) The controller controls the power of the fan (22) to be NL, the power of the heating element to be PL, and the moving plate (32) moves to the first position or the second position and is positioned until T≥T0, and the drying ends; The order is: NH > NM > NL; PH > PM > PL.

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