Control method of cleaning machine

Abstract

The invention relates to a control method of a cleaning machine, and the cleaning machine comprises a box body which is internally provided with a washing cavity; the drying structure is used for heating external airflow and then introducing the heated external airflow into the washing cavity; the exhaust structure is used for exhausting airflow in the washing cavity to the outside; the air inlet and the air outlet are both communicated with the washing cavity, the air flow channel is communicated with the air inlet and the air outlet, and a circulation acceleration draught fan used for accelerating air flow in the air flow channel is further arranged on the circulation acceleration piece; the control method of the cleaning machine comprises the steps that external airflow is heated by the drying structure and conveyed into the washing cavity to flow, the external airflow is mixed with airflow in the washing cavity in the flowing process, one part of the airflow is exhausted to the outside through the exhaust structure, and the other part of the airflow enters the airflow channel, is accelerated by the circulation acceleration fan and then flows back into the washing cavity; therefore, the airflow flowing speed and the airflow coverage area in the washing cavity are increased.

Description

Technical Field

[0001] The invention relates to a control method for a washing machine for washing tableware and / or fruits and vegetables. Background Art

[0002] Existing washing machines with exhaust and drying functions are generally equipped with a drying system that blows hot air into the cavity for drying. For example, the Chinese utility model patent application number CN202210778760.X (publication number CN115067849B) discloses a drying device for a washing machine and a drying control method thereof. The washing machine has an exhaust assembly installed on the inner door, a hot air assembly installed on the side wall of the cavity, a heating element and a blower fan installed in the hot air channel of the hot air assembly, and an exhaust fan installed in the exhaust channel of the exhaust assembly.

[0003] However, when there are a large number of dishes in the washing chamber, or the dishes are not placed properly, the hot air blown into the washing chamber will be blocked by the dishes, reducing the flow rate, and the flow field will be uneven, resulting in dead corners and reducing the hot air coverage, thereby affecting the drying effect. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a control method for a washing machine with good drying effect in view of the current status of the prior art.

[0005] The technical solution adopted by the present invention to solve the above technical problems is: a control method for a cleaning machine, the cleaning machine includes

[0006] A box body having a washing chamber therein;

[0007] The drying structure is used to heat the external air flow and then pass it into the washing chamber;

[0008] Exhaust structure, used to discharge the airflow in the washing chamber to the outside;

[0009] It is characterized by also including

[0010] A circulation accelerating member having an air inlet and an air outlet both connected to the washing chamber and an air flow channel connecting the air inlet and the air outlet, and a circulation accelerating fan for accelerating the air flow in the air flow channel;

[0011] The control method of the cleaning machine is:

[0012] The external air flow is heated by the drying structure and transported into the washing chamber to flow. During the flow, it mixes with the air flow in the washing chamber, and part of it is discharged to the outside through the exhaust structure, and the other part enters the air flow channel and is accelerated by the circulation acceleration fan before flowing back to the washing chamber, thereby increasing the air flow speed and air flow coverage area in the washing chamber.

[0013] Preferably, the housing is provided with an exhaust port connected to the washing chamber, and the exhaust structure includes an exhaust pipe and an exhaust fan. The air inlet end of the exhaust pipe is connected to the exhaust port, and the air outlet end of the exhaust pipe is connected to the outside. When the temperature and humidity values in the washing chamber are not less than set values, the exhaust fan operates, and when the temperature and humidity values in the washing chamber are less than the set values, the exhaust fan does not operate. This can save energy. When the temperature and humidity values in the washing chamber are high, it is necessary to quickly discharge the hot and humid air in the washing chamber to improve the drying efficiency, so the exhaust fan is turned on for rapid exhaust. When the temperature and humidity values in the washing chamber are low, the hot and dry air circulates in the washing chamber, which can keep the washing chamber warm, more effectively increase the surface temperature of the dishes, and improve the drying effect. During this process, in order to maintain the balance of air pressure inside and outside the washing chamber, the air will be pressed into the exhaust structure for discharge.

[0014] In the above solution, a temperature and humidity sensor is provided in the washing chamber for detecting the temperature and humidity values therein, so as to determine whether to turn on the exhaust fan according to the temperature and humidity values.

[0015] The exhaust fan can be manually turned on by a user based on the temperature and humidity values. Preferably, the cleaning machine further comprises a controller, the input end of the controller being electrically connected to the temperature and humidity sensor, and the output end of the controller being electrically connected to the exhaust fan. In this way, the system can automatically turn on the exhaust fan based on the temperature and humidity values in the washing chamber.

[0016] Preferably, a first through hole and a second through hole connected to the washing chamber are provided on the side wall of the box body, the air inlet is connected to the first through hole, and the air outlet is connected to the second through hole, the flow rate of the air flow flowing out of the first through hole is V1, and the flow rate of the air flow flowing out of the second through hole is V2, V2>V1, so that the flow rate of the air flow entering the washing chamber again is increased, the convective heat and mass transfer efficiency is improved, and thus the drying effect is improved.

[0017] Preferably, V2-V1≥2m / s.

[0018] Preferably, a third through-hole is provided on the side wall of the housing, communicating with the washing chamber. The drying structure includes an air inlet duct and a heating element disposed therein. The air inlet port of the air inlet duct communicates with the outside world, and the air outlet port of the air inlet duct communicates with the third through-hole. The drying structure also includes an air intake fan for driving air from the air inlet port to the air outlet port of the air inlet duct. The airflow velocity out of the third through-hole is V3, where V2 < V3. Because dishware drying primarily relies on the hot airflow input by the drying structure, V2 < V3 ensures sufficient airflow into the washing chamber, thereby ensuring drying efficiency and effectiveness. During its flow within the washing chamber, the airflow is obstructed and decelerated. After secondary acceleration by the circulation accelerator, it re-flows back into the washing chamber, maintaining the overall airflow velocity within the washing chamber and, therefore, ensuring airflow coverage and drying effectiveness. Furthermore, when the two airflows, flowing out of the second through-hole and the first through-hole, meet, they disperse, further expanding the airflow coverage area.

[0019] Preferably, V2 / V3≥20%.

[0020] Preferably, the third through hole and the first through hole are located at different heights, so that after the airflow enters from the third through hole, it needs to flow to the first through hole before it can flow out, thereby extending the flow path of the airflow and improving the drying effect.

[0021] Preferably, the third through hole is arranged on the first side wall of the box body, the first through hole and the second through hole are arranged on the second side wall of the box body, the first side wall and the second side wall are arranged adjacent to each other, or the first side wall and the second side wall are arranged opposite to each other; this facilitates the arrangement of the circulation accelerator and the air inlet pipe, and the flow path of the airflow is longer, and the drying effect is good.

[0022] Another solution is that the third through hole, the first through hole and the second through hole are arranged on the same side wall of the box body, so that the airflow also needs to flow along a longer path, but the circulation accelerator and the air inlet pipe are installed on the same side wall of the box body, and the installation space will be relatively cramped.

[0023] Preferably, the air inlet is located below the air outlet, so that after the air flow enters the washing chamber from the third through hole, it circulates internally from bottom to top, making the hot air flow field in the washing chamber more dispersed.

[0024] Preferably, the air flow channel includes an upward extending section and a downward extending section, the air inlet is arranged at the lower end of the upward section, and the air outlet is arranged on the downward section, so that the air outlet is hung high to prevent water in the washing chamber from entering the air flow channel during the cleaning process. Even if a small amount enters the air flow channel, it will flow back to the washing chamber along the downward section.

[0025] Preferably, a water outlet hole is provided on the air flow channel, and the water outlet hole is located above the air inlet. A condensation water channel is also provided between the water outlet hole and the air inlet, so that the condensed water after the water vapor entering the air flow channel condenses during the cleaning and drying processes can flow back into the cavity to prevent the air flow from blowing the condensed water to generate noise. At the same time, because a circulating acceleration fan is provided in the air flow channel, the condensed water is discharged from the condensation water channel, which can also prevent the condensed water from entering the fan.

[0026] In order to further prevent condensed water from flowing into the circulation acceleration fan, along the direction of water flow, the air outlet of the circulation acceleration fan is located downstream of the water outlet, and a water retaining rib is provided between the two.

[0027] To further increase the hot air coverage area and enhance the drying effect, the air inlet duct has multiple outlet ports. Correspondingly, there are multiple third through holes, with at least two of the outlet ports of the air inlet duct spaced vertically apart. This allows the drying structure to introduce air into the washing chamber from multiple locations, improving the uniformity of the flow field.

[0028] Preferably, the bottom wall of the circulation accelerator is provided with a water inlet and a water outlet, the water outlet being connected to the washing chamber of the tank. The circulation accelerator is provided with a water flow channel connecting the water inlet and the water outlet. The water flow channel includes a first section extending upward and a second section extending downward. The lower end of the first section is connected to the water inlet, and the lower end of the second section is connected to the water outlet. The air inlet is located beside the second section, and a siphon port connected to the air inlet is provided on the side wall of the second section. In this way, the air inlet not only allows air to flow out, but also connects to the siphon port, ensuring pressure balance in the water flow channel, and thus a single port serves multiple purposes.

[0029] Compared with the prior art, the advantages of the present invention are as follows: the present invention sets a circulation acceleration component, and the circulation acceleration component and the washing chamber form an internal circulation air duct. When the drying structure blows hot air into the washing chamber, the hot air is mixed with the air flow in the washing chamber, and a part of it will be discharged to the outside through the exhaust structure to maintain the air pressure balance in the washing chamber, and the other part enters the air flow channel of the internal circulation acceleration component, is accelerated by the circulation acceleration fan, and then flows back to the washing chamber, thereby increasing the air flow speed and coverage area in the washing chamber, thereby improving the drying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 Schematic diagram of the structure of an embodiment of the present invention;

[0031] Figure 2 for Figure 1 A schematic diagram of the structure in another direction;

[0032] Figure 3 for Figure 1 Structural diagram of the circulation accelerating component and the circulation accelerating fan;

[0033] Figure 4 for Figure 3 A schematic diagram of a structure with one of the half shells removed;

[0034] Figure 5 for Figure 4 Enlarged view of point A. DETAILED DESCRIPTION

[0035] The technical solution of the present invention is further described in detail below in conjunction with the embodiments of the accompanying drawings. It is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be understood that, in the description of the patent of the present invention, unless otherwise specified, "plurality" means two or more, and the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "top", "bottom", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the patent of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the patent of the present invention.

[0037] In the description of this patent, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; they can be mechanical connection or adhesive connection; and they can be directly connected or indirectly connected through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this patent.

[0038] like Figures 1 to 5 As shown, the cleaning machine of this preferred embodiment includes a housing 1 , a drying structure 2 , a circulation accelerating component 3 and a circulation accelerating fan 4 .

[0039] The box body 1 has a washing chamber 11 therein, and a first through hole 13 , a second through hole 14 and a third through hole 12 communicating with the washing chamber 11 are provided on the side wall of the box body 1 .

[0040] The drying structure 2 is used to heat the external air flow and then pass it into the washing chamber 11. The drying structure 2 includes an air inlet pipe 21, a heating element and an air inlet fan 22. The air inlet pipe 21 and the circulation acceleration element 3 are both located outside the washing chamber 11 and are both installed on the side wall of the box body 1.

[0041] The air inlet port of the air inlet duct 21 is connected to the outside world, and the air outlet port of the air inlet duct 21 is connected to the third through hole 12. Along the airflow direction, the air inlet port of the air inlet duct 21 is located upstream of its air outlet port. A heating element is disposed in the air inlet duct 21, which may be a PTC heating element. The air inlet port of the air inlet fan 22 is connected to the outside world, and the air outlet port is connected to the air inlet port of the air inlet duct 21. The air inlet fan 22 can adopt an existing fan structure.

[0042] Thus, the external air flow is sucked into the air inlet pipe 21 by the air inlet fan 22, and after being heated by the heating element, the hot air flow flows into the washing chamber 11 from the third through hole 12 to dry the dishes.

[0043] Preferably, the air inlet pipe 21 has multiple outlet ports, and correspondingly, the third through-holes 12 have multiple outlet ports, with at least two of the outlet ports of the air inlet pipe 21 spaced vertically apart. This improves the uniformity of the flow field by allowing the drying structure 2 to enter the washing chamber 11 from multiple locations, further increasing the hot air coverage area and enhancing the drying effect.

[0044] Specifically, in this embodiment, the air inlet duct 21 has three air outlets, one of which is located above the other two. Because the flow field in the lower portion of the washing chamber 11 is more prone to unevenness, two third through holes 12 are provided in the corresponding lower portion. Preferably, a fan capable of rotating about the centerline of the third through hole 12 can be provided in at least one of the third through holes 12. The fan can be driven by a motor or by wind to further improve flow field uniformity.

[0045] The circulation accelerator 3 has an air inlet 31 and an air outlet 32, both of which are connected to the washing chamber 11, and an air flow channel 33 connecting the air inlet 31 and the air outlet 32. The air inlet 31 is connected to the first through hole 13, and the air outlet 32 is connected to the second through hole 14. In the direction of air flow, the air inlet 31 is located upstream of the air outlet 32. The circulation accelerator 3 is also provided with a circulation acceleration fan 4 for accelerating the airflow in the air flow channel 33. The circulation acceleration fan 4 can adopt an existing fan structure.

[0046] It can be seen that the air flow channel 33 in the circulation accelerator 3 and the washing chamber 11 form an internal circulation air duct. When the drying structure 2 blows air into the washing chamber 11, the air flow channel 33 in the circulation accelerator 3 accelerates the air flow and circulates it internally, thereby increasing the air flow speed and air flow coverage area in the washing chamber 11, dispersing the hot air flow field in the washing chamber 11 and improving the drying effect.

[0047] The flow rate of the air flow out of the first through hole 13 is V1, and the flow rate of the air flow out of the second through hole 14 is V2, V2>V1, and more preferably, V2-V1≥2m / s, so that the flow rate of the air flow entering the washing chamber again is increased, the convective heat and mass transfer efficiency is improved, and thus the drying effect is improved.

[0048] The flow rate of the airflow flowing out of the third through hole 12 is V3, V2<V3, and more preferably, V2 / V3≥20%. Because the drying of tableware mainly relies on the hot airflow input by the drying structure, V2<V3 can ensure the amount of airflow input by the drying structure into the washing chamber, so as to ensure the drying efficiency and drying effect. During the flow of the airflow in the washing chamber, it will be blocked and decelerated. After being accelerated twice by the circulating accelerator, it will flow back into the washing chamber again to ensure the flow speed of the overall airflow in the washing chamber, and thus ensure the airflow coverage area and drying effect; and after the two airflows with different speeds flowing out of the second through hole and the first through hole meet, they will dissipate and further expand the airflow coverage area.

[0049] Preferably, the third through hole 12 and the first through hole 13 are located at different heights. In this way, after the airflow enters from the third through hole 12, it needs to flow to the first through hole 13 before it can flow out, thereby extending the flow path of the airflow and improving the drying effect.

[0050] In this embodiment, the third through hole 12 is provided on the first side wall of the box body 1 , and the first through hole 13 and the second through hole 14 are provided on the second side wall of the box body 1 , and the first side wall and the second side wall are arranged opposite to each other.

[0051] Of course, the first side wall and the second side wall may also be arranged adjacent to each other.

[0052] In the above two methods, the circulation accelerating element 3 and the air inlet pipe 21 are respectively arranged on the two side walls of the box body 1, the installation space is relatively spacious, the flow path of the air flow is long, and the drying effect is good.

[0053] Alternatively, the third through hole 12, the first through hole 13 and the second through hole 14 are arranged on the same side wall of the box body 1. In this solution, the airflow needs to flow in the entire washing chamber 11 and then return to the first through hole 13. The airflow path is longer and the flow field is more uniform. However, the circulation accelerator 3 and the air inlet pipe 21 are installed on the same side wall of the box body 1, and the installation space will be relatively cramped.

[0054] like Figure 4 As shown, the air flow channel 33 includes an upward extending section 331 and a downward extending section 332. The air inlet 31 is arranged at the lower end of the upward section 331, and the air outlet 32 is arranged on the downward section 332. In this way, the air outlet 32 is hung high to prevent water in the washing chamber 11 from entering the air flow channel 33 during the cleaning process. Even if a small amount of water enters the air flow channel 33, it will flow back to the washing chamber 11 along the downward section 332.

[0055] The air inlet 31 is located below the air outlet 32 , so that after the air flow enters the washing chamber 11 from the third through hole 12 , it circulates internally from bottom to top, making the hot air flow field in the washing chamber 11 more dispersed.

[0056] like Figure 4 、 5 As shown, the air flow channel 33 is further provided with a water outlet 333, which is located above the air inlet 31. A condensation water channel 334 is further provided between the water outlet 333 and the air inlet 31, so that the condensed water after the water vapor entering the air flow channel 33 condenses during the cleaning and drying processes can flow back into the washing chamber 11. The flow path of the condensed water is as shown in FIG. Figure 5 As shown by the middle arrow, the airflow is prevented from blowing the condensed water to generate noise. At the same time, because a circulation acceleration fan 4 is provided in the airflow channel 33, the condensed water is discharged from the condensed water channel 334, which can also prevent the condensed water from entering the circulation acceleration fan 4.

[0057] In order to further prevent condensed water from flowing into the circulation acceleration fan 4, along the water flow direction, the air outlet of the circulation acceleration fan 4 is located downstream of the water outlet 333, and a water retaining rib 335 is provided between the two.

[0058] like Figure 4 As shown, a water inlet 34 and a water outlet 35 are provided on the bottom wall of the circulation accelerator 3. The water outlet 35 is connected to the washing chamber 11 of the box body 1. The connection between the two can adopt existing technology. For example, the water outlet 35 and the washing chamber 11 are connected through a water softener.

[0059] The circulation accelerator 3 is provided with a water flow channel 36 connecting the water inlet 34 and the water outlet 35. The water flow channel 36 comprises an upwardly extending first section 361 and a downwardly extending second section 362. The lower end of the first section 361 is connected to the water inlet 34, and the lower end of the second section 362 is connected to the water outlet 35. The air inlet 31 is located beside the second section 362. The sidewall of the second section 362 is provided with a siphon port 363 that is connected to the air inlet 31. This allows the air inlet 31 to not only allow air to flow out but also connect to the siphon port 363, ensuring pressure balance in the water flow channel 36, thus achieving multiple uses.

[0060] In this embodiment, the circulation accelerator 3 is formed by welding two shells 3a.

[0061] The exhaust structure is used to exhaust the airflow in the washing chamber 11 to the outside world. The housing 1 is provided with an exhaust port connected to the washing chamber 11. The exhaust structure includes an exhaust pipe and an exhaust fan. The air inlet end of the exhaust pipe is connected to the exhaust port, and the air outlet end of the exhaust pipe is connected to the outside world. The exhaust structure adopts existing technology and can be installed on the door body. Please refer to the Chinese invention patent application number CN202321474862.9 (publication number CN220024969U) "A sensor mounting structure for a dishwasher and a dishwasher" or the patents cited in the background technology.

[0062] The control method of the cleaning machine of this embodiment is as follows:

[0063] The external air flow is heated by the drying structure 2 and transported into the washing chamber 11 to flow. During the flow, it mixes with the air flow in the washing chamber 11, and a part of it is discharged to the outside through the exhaust structure, and the other part enters the air flow channel 33 and is accelerated by the circulation acceleration fan 4 before flowing back to the washing chamber 11, thereby increasing the air flow speed and air flow coverage area in the washing chamber 11.

[0064] In order to reduce energy consumption, the exhaust fan works when the temperature and humidity in the washing chamber 11 are not less than the set values, and does not work when the temperature and humidity in the washing chamber 11 are less than the set values.

[0065] The details are as follows:

[0066] When the temperature value in the washing chamber 11 is not less than X and the humidity value is not less than Y, for example, after high-temperature cleaning, the washing chamber 11 is in a high-temperature and high-humidity stage. At this time, the circulation acceleration fan 4, the air intake fan 22 and the exhaust fan are all working, and the external air flow is heated in the air intake pipe 21 and then flows into the washing chamber 11. During the flow process, the hot air flow mixes with the original air flow in the washing chamber 11, and during the flow process, part of the mixed air flow is quickly discharged to the outside through the exhaust pipe, and the other part circulates between the circulation acceleration member 3 and the washing chamber 11;

[0067] During the drying process, the hot air blown in by the drying structure 2 is slowed down due to the obstruction of the dishes. The circulation accelerator 3 sucks the hot air in the washing chamber 11 and blows it out again, providing secondary acceleration, increasing the air flow rate in the washing chamber 11, and increasing the hot air coverage area in the washing chamber 11. The water vapor is quickly discharged from the washing chamber 11 through the exhaust structure, thereby improving the drying effect.

[0068] When the temperature value in the washing chamber is less than X and the humidity value is less than Y, such as after drying for a period of time, the circulation acceleration fan 4 and the air intake fan 22 are both working, and the exhaust fan is not working. The external airflow is heated in the air inlet pipe 21 and then flows into the washing chamber 11. During the flow, the hot airflow is mixed with the original airflow in the washing chamber 11, and during the flow, part of the mixed airflow is squeezed into the exhaust pipe and discharged to the outside, and the other part circulates between the circulation acceleration component 3 and the washing chamber 11.

[0069] During the drying process, the hot air blown in by the drying structure 2 is slowed down due to the obstruction of the dishes. The circulation accelerator 3 sucks the hot air in the washing chamber and then blows it out, providing secondary acceleration, increasing the air flow rate in the washing chamber 11, and increasing the hot air coverage area in the washing chamber 11. Since the washing chamber 11 itself is at a low temperature, the internal circulation effect of the circulation accelerator 3 can also circulate the hot air in the washing chamber 11 to keep it warm, more effectively increase the surface temperature of the dishes, and improve the drying effect.

[0070] To monitor the temperature and humidity within the washing chamber 11, a temperature and humidity sensor is provided. The temperature and humidity sensor can utilize existing structures. The washing machine also includes a controller, the input of which is electrically connected to the temperature and humidity sensor, and the output of which is electrically connected to the exhaust fan. The temperature and humidity sensor sends signals to the controller, which controls the operation of the exhaust fan based on the collected temperature and humidity values.

[0071] The electrical connection between the controller, the temperature and humidity sensor, and the exhaust fan is prior art and will not be described in detail here.

Claims

1. A control method for a cleaning machine, the cleaning machine comprising A box body (1) having a washing chamber (11) therein; A drying structure (2) for heating the external airflow and then passing it into the washing chamber (11); An exhaust structure for discharging the airflow in the washing chamber (11) to the outside; It is characterized by also including A circulation accelerating member (3) having an air inlet (31) and an air outlet (32) both of which are connected to the washing chamber (11), and an air flow channel (33) connecting the air inlet (31) and the air outlet (32), and a circulation accelerating fan (4) for accelerating the air flow in the air flow channel (33); The control method of the cleaning machine is: The external air flow is heated by the drying structure (2) and transported into the washing chamber (11) to flow. During the flow, it mixes with the air flow in the washing chamber (11), and a part of it is discharged to the outside through the exhaust structure, while the other part enters the air flow channel (33) and is accelerated by the circulation acceleration fan (4) before flowing back into the washing chamber (11).

2. The control method of a cleaning machine according to claim 1, characterized in that: The box body (1) is provided with an exhaust port connected to the washing chamber (11); the exhaust structure comprises an exhaust pipe and an exhaust fan; the air inlet end of the exhaust pipe is connected to the exhaust port, and the air outlet end of the exhaust pipe is connected to the outside; when the temperature and humidity values in the washing chamber (11) are not less than set values, the exhaust fan operates; when the temperature and humidity values in the washing chamber (11) are less than the set values, the exhaust fan does not operate.

3. The control method of a cleaning machine according to claim 2, characterized in that: The washing chamber (11) is provided with a temperature and humidity sensor for detecting the temperature and humidity values therein.

4. The control method of a cleaning machine according to claim 3, characterized in that: The cleaning machine further comprises a controller, wherein an input end of the controller is electrically connected to the temperature and humidity sensor, and an output end of the controller is electrically connected to the exhaust fan.

5. The control method for a cleaning machine according to any one of claims 1 to 4, characterized in that: A first through hole (13) and a second through hole (14) are provided on the side wall of the box body (1), the air inlet (31) is connected to the first through hole (13), and the air outlet (32) is connected to the second through hole (14). The flow rate of the airflow flowing out of the first through hole (13) is V1, and the flow rate of the airflow flowing out of the second through hole (14) is V2, and V2>V1.

6. The control method of a cleaning machine according to claim 5, characterized in that: V2-V1≥2m / s.

7. The control method of a cleaning machine according to claim 5, characterized in that: A third through hole (12) communicating with the washing chamber (11) is provided on the side wall of the box body (1); the drying structure comprises an air inlet pipe (21) and a heating element provided in the air inlet pipe (21); the air inlet port of the air inlet pipe (21) is communicated with the outside world; the air outlet port of the air inlet pipe (21) is communicated with the third through hole (12); the drying structure further comprises an air inlet fan (22) for driving air flow from the air inlet port of the air inlet pipe (21) to the air outlet port; the flow rate of the air flow out of the third through hole (12) is V3, and V2<V3.

8. The control method of a cleaning machine according to claim 7, characterized in that: V2 / V3≥20%.

9. The control method of a cleaning machine according to claim 7, characterized in that: The third through hole (12) and the first through hole (13) are located at different heights.

10. The control method of a cleaning machine according to claim 7, characterized in that: The third through hole (12) is provided on a first side wall of the box body (1), the first through hole (13) and the second through hole (14) are provided on a second side wall of the box body (1), and the first side wall and the second side wall are provided adjacent to each other, or the first side wall and the second side wall are provided opposite to each other; Alternatively, the third through hole (12), the first through hole (13) and the second through hole (14) are arranged on the same side wall of the box body (1).

11. The control method for a cleaning machine according to any one of claims 1 to 4, characterized in that: The air inlet (31) is located below the air outlet (32).

12. The control method for a cleaning machine according to any one of claims 1 to 4, characterized in that: The air flow channel (33) comprises an upwardly extending upward section (331) and a downwardly extending downward section (332); the air inlet (31) is arranged at the lower end of the upward section (331); and the air outlet (32) is arranged on the downward section (332).

13. The control method of a cleaning machine according to claim 12, characterized in that: The upward section (331) is provided with a water outlet hole (333), and the water outlet hole (333) is located above the air inlet (31). A condensed water channel (334) is also provided between the water outlet hole (333) and the air inlet (31).

14. The control method of a cleaning machine according to claim 13, characterized in that: Along the direction of water flow, the air outlet of the circulation acceleration fan (4) is located downstream of the water outlet (333), and a water retaining rib (335) is provided between the two.

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