A cleaning machine

Abstract

The present application relates to a kind of cleaning machines, including box, inside with washing cavity, the box is opened with and washing cavity is communicated with first air inlet;Drying assembly is located outside washing cavity, can heat air flow and send the hot air flow after heating to washing cavity in first air inlet;The box is also opened with and can be sent into washing cavity in second air inlet of air flow outside washing cavity, the cleaning machine also includes air flow driving element, for sending the air flow outside washing cavity from first air inlet and second air inlet into washing cavity, so that the air flow entering from first air inlet and second air inlet collides in washing cavity, so that the air flow flow field distribution in washing cavity is more uniform, and drying effect is better.

Description

Technical Field

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

[0002] A dishwasher is a device that sprays cold or hot water onto dishes to remove dirt and grime. Dishwashers typically perform at least two washes, with at least one of these washes using hot water. This results in a significant amount of water vapor remaining in the washing chamber after the wash. This vapor condenses and accumulates on the surfaces of the dishes, leaving them damp and unpleasant to the user, and also creating a breeding ground for bacteria.

[0003] To address the aforementioned issues, Chinese utility model patent CN201820319612.0 (publication number CN208958049U) discloses a "drying system for a dishwasher," comprising an inner tub and a breather. The breather is disposed outside the inner tub and has an exhaust channel that connects the inside and outside of the inner tub. The system also includes a hot air generating device with a hot air output end that communicates with the inside of the inner tub. A duct nut is provided in the inner tub corresponding to the hot air output end, fixing the hot air output end to the inner tub wall. The duct nut has holes that communicate with both the inside of the inner tub and the hot air output end. These holes include a central hole and peripheral holes, with the peripheral holes evenly distributed in a ring around the central hole.

[0004] Most current hot air drying systems, as described in the aforementioned patent, have air inlets on the side wall of the dishwasher cabinet, and then blow hot air into the interior cavity. However, when there are a large number of dishes, the dishes will obstruct the airflow, resulting in poor air convection and thus affecting the drying effect on the dishes. In addition, there may be drying dead zones in areas far from the air inlets. Increasing the power of the fan will increase noise and cost. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a cleaning machine that can improve the uniformity of airflow distribution in the washing chamber, in light of the current state of the prior art.

[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a cleaning machine, comprising...

[0007] The housing has a washing chamber inside, and a first air inlet that is in fluid communication with the washing chamber is provided on the housing.

[0008] The drying component, located outside the washing chamber, is capable of heating the airflow and sending the heated airflow into the washing chamber through the first air inlet;

[0009] Its characteristic is that the housing is further provided with a second air inlet allowing airflow from outside the washing chamber to enter the washing chamber, and,

[0010] The cleaning machine also includes an airflow drive component for sending airflow from outside the washing chamber into the washing chamber through the first air inlet and the second air inlet, thereby causing the airflow entering from the first air inlet and the second air inlet to collide within the washing chamber.

[0011] To guide airflow from outside the washing chamber into the washing chamber, a housing is provided on the outside of the main body. The housing has a first air duct inside, and a first air inlet for airflow into the first air duct and a first air outlet for airflow out of the first air duct are provided on the housing. The first air outlet is fluidly connected to a second air inlet. The airflow driving component includes a first airflow driving component disposed within the housing. The housing serves to guide the airflow from outside the washing chamber.

[0012] The first airflow drive component can have various structural forms. Preferably, the first airflow drive component is a first fan located outside the housing. The air inlet of the first fan is fluidly connected to the first air outlet, and the air outlet of the first fan is fluidly connected to the first air outlet. The fan has a simple structure and low cost.

[0013] To prevent water from splashing out of the washing chamber and flowing into the first fan during the cleaning process, as the first fan contains electrical components or chips that are easily damaged by water, a portion of the first air duct is designed as a receiving cavity to house the first fan. Along the direction of airflow, the receiving cavity is located upstream of the first air outlet. This way, even if water splashes out from the first air outlet, it will flow back to the first air outlet under the impact of the airflow from the first fan, and then flow back into the washing chamber from the first air outlet.

[0014] For a cleaning machine equipped with an overflow outlet, the receiving cavity is located above the first air outlet. This way, even if water splashes out from the first air outlet, it will flow back into the washing chamber under the influence of gravity; and the location of the receiving cavity above the first air outlet prevents a large amount of water from entering the first fan during overflow.

[0015] To prevent moisture overflowing from the first air outlet from remaining in the first fan, the accommodating cavity is located diagonally above the first air outlet. The air outlet of the first fan faces the section of the first air duct downstream of the accommodating cavity, and the bottom wall of the first fan is inclined downwards towards the section of the first air duct downstream of the accommodating cavity. This way, even if moisture enters the first fan, it will flow out under the influence of gravity and airflow.

[0016] To prevent moisture from accumulating in the containment cavity and ultimately entering the first fan, the containment cavity is located diagonally above the first air outlet, and its bottom wall is inclined downwards towards the section of the first air duct downstream of the containment cavity. In this way, moisture entering the containment cavity will flow out of the containment cavity along its bottom wall under the influence of gravity.

[0017] To prevent moisture from accumulating in the first fan, a drain hole is provided on the bottom wall of the first fan, and a drain outlet corresponding to and communicating with the drain hole is provided on the bottom wall of the receiving cavity. In this way, moisture entering the first fan can be discharged from the drain outlet.

[0018] In the above scheme, one method is that the first air inlet is in fluid communication with the outside environment, so that the airflow in the external environment directly enters the washing chamber.

[0019] In the above scheme, another method is as follows: the side wall of the housing is also provided with a first air outlet connected to the washing chamber, and the first air inlet and the first air outlet are in fluid communication. In this way, the airflow flowing out of the washing chamber flows back into the washing chamber through the second air inlet.

[0020] To improve drying efficiency, the washing machine also includes a condenser with a condensing section located in the first air duct. In this way, the airflow flowing out of the washing chamber is condensed by the condensing section, and the dried airflow flows back into the washing chamber, working in conjunction with the hot airflow flowing in from the first air inlet, resulting in high drying efficiency for the tableware.

[0021] The condenser can have various structural forms, such as a water tank. Preferably, the condenser is a semiconductor refrigeration device, and the condensation section is the cold end of the semiconductor refrigeration device. Semiconductor refrigeration devices are small in size, easy to install in a housing, have high condensation efficiency, and are readily available.

[0022] To ensure effective condensation at the cold end, the hot end of the semiconductor cooling device is located outside the housing, and the outer wall of the housing is also equipped with a heat sink for dissipating heat from the hot end. The heat sink dissipates heat to the hot end, thereby bringing the cold end below the dew point temperature of the housing, resulting in good condensation performance.

[0023] The heat sink can dissipate heat from the hot end in various ways, such as water cooling, air cooling, and phase change heat absorption. In this simple case, the heat sink is a third fan. The air inlet of the third fan is connected to the outside, and the air outlet of the third fan faces the hot end of the semiconductor cooling device. The third fan blows cool outside air towards the hot end, thus dissipating heat.

[0024] Preferably, the housing is a respirator, and the first air outlet can allow airflow from the first air duct to enter the washing chamber through the second air inlet, and also allow airflow from the washing chamber to flow into the first air duct through the second air inlet. In this way, the first air outlet can not only take in air, but also exit air.

[0025] To allow the airflow from the washing chamber to escape outside the housing, the housing is also provided with a second connecting port that is in close contact with the outside environment. The housing also has a second air duct connecting the first air outlet and the second connecting port. This second air duct serves as an exhaust channel; when the pressure in the washing chamber is too high, airflow exits through the second air duct to relieve pressure.

[0026] Preferably, the second air duct is an inverted U-shape. This allows the second air duct to also serve as a drainage channel; when the liquid level in the washing chamber is too high, water can be discharged through the second air duct under siphon action.

[0027] In the above scheme, if the box body also has the function of a respirator, preferably, the second air inlet is located in the upper part of the washing chamber and the first air inlet is located in the lower part of the washing chamber. The hot airflow of the drying component enters the lower part of the washing chamber from the first air inlet. The airflow dries the tableware as it flows upward, resulting in a good drying effect. Since the second air inlet can not only take in air but also vent air, it is set at a higher position to facilitate air venting. Of course, the second air inlet can also vent air even if it is located in the lower part of the washing chamber.

[0028] If only the effect of the colliding airflow is considered, optimally, the first and second air inlets should be at the same height, at which point the two airflows are most likely to collide; of course, it can also be done in the following way:

[0029] The first air inlet is located at the lower part of the washing chamber, and the second air inlet is located at the upper part of the washing chamber;

[0030] Alternatively, both the first and second air inlets are located in the upper or lower part of the washing chamber, but at different heights.

[0031] Alternatively, the first air inlet is located in the upper part of the washing chamber, and the second air inlet is located in the lower part of the washing chamber.

[0032] Preferably, the first air inlet is located on the first side wall of the housing, and the second air inlet is located on the second side wall of the housing, with the first and second side walls of the housing being opposite to or adjacent to each other. This causes the airflow to enter in different directions, making collisions more likely.

[0033] Of course, the first and second air inlets can also be located on the same side wall of the housing. In this case, the air intake direction of at least one of the air inlets needs to be designed to be inclined so that the two airflows can collide.

[0034] The drying assembly can have various structural forms, such as a heating wire installed in the second air inlet. Preferably, the drying assembly includes an air inlet duct and a heating element. The air inlet duct is located on the side wall of the housing, and has a second air inlet and a second air outlet. The second air inlet is in fluid communication with the outside, and the second air outlet is in fluid communication with the first air inlet of the housing. The airflow driving element includes a second airflow driving element for driving airflow from the second air inlet to the second air outlet. The heating element is located in the air inlet duct and on the airflow path from the second air inlet to the second air outlet. The airflow enters the air inlet duct, is heated by the heating element, and then enters the washing chamber through the first air inlet.

[0035] The second airflow drive can have various structural forms. Preferably, the second airflow drive is a second fan installed in the air inlet duct, with the air inlet of the second fan in fluid communication with the second air inlet and the air outlet of the second fan in fluid communication with the second air outlet.

[0036] In order to make the airflow entering from the first air inlet collide more fully with the airflow entering from the second air inlet, thereby further improving the drying effect, the angle between the airflow direction at the first air inlet and the airflow direction at the second air inlet is between 60° and 300°.

[0037] Preferably, the angle between the airflow direction at the first air inlet and the airflow direction at the second air inlet is between 90° and 270°, and more preferably between 135° and 225°.

[0038] In order to further improve the drying effect by maximizing the collision between the airflow entering from the first air inlet and the airflow entering from the second air inlet, the first air inlet is located on the first side wall of the chamber, and the second air inlet is located on the second side wall of the chamber. The first and second side walls of the chamber are arranged opposite to or adjacent to each other.

[0039] To further enhance the collision between the airflow entering from the first air inlet and the airflow entering from the second air inlet, thereby improving the drying effect, the vertical distance between the first air inlet and the bottom wall of the chamber is H1, and the vertical distance between the second air inlet and the bottom wall of the chamber is H2, where 0.9H1≤H2≤1.1H1.

[0040] Preferably, the centerline of the first air inlet and the centerline of the second air inlet are basically on the same horizontal plane, so that the airflow entering from the first air inlet and the second air inlet collides more fully.

[0041] Compared with the prior art, the advantages of the present invention are as follows: By opening a first air inlet and a second air inlet on the housing, the hot airflow generated by the drying component is sent into the washing chamber through the first air inlet, and the second air inlet allows the airflow outside the washing chamber to enter the washing chamber at a certain speed. The two airflows collide, making the airflow field distribution in the washing chamber more uniform and the drying effect better. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the cleaning device of the cleaning machine according to Embodiment 1 of the present invention;

[0043] Figure 2 for Figure 1 A schematic diagram of the cleaning machine in the diagram;

[0044] Figure 3 for Figure 2 A schematic diagram of the structure from another direction;

[0045] Figure 4 for Figure 3 A cross-sectional view of the drying component in the middle;

[0046] Figure 5 for Figure 3 A structural diagram of the box and its internal components;

[0047] Figure 6 for Figure 5 A sectional view;

[0048] Figure 7 for Figure 5 A cross-sectional view from another direction;

[0049] Figure 8 This is a schematic diagram of the cleaning machine according to Embodiment 2 of the present invention;

[0050] Figure 9 for Figure 8 A schematic diagram of the structure from another direction;

[0051] Figure 10 for Figure 9 A structural diagram of the box and its internal components;

[0052] Figure 11 for Figure 10 A sectional view;

[0053] Figure 12 for Figure 10 A cross-sectional view from another direction;

[0054] Figure 13 This is a schematic diagram of the airflow collision entering from the first and second air inlets. Detailed Implementation

[0055] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0056] Example 1

[0057] like Figures 1-7 As shown, the cleaning machine of this preferred embodiment includes a housing 1, a drying assembly 2, a box 3, etc.

[0058] The housing 1 has a washing chamber 11 inside. A first air inlet 14, which is in fluid communication with the washing chamber 11, is opened on the first side wall 12 of the housing 1. A second air inlet 15, which allows airflow from outside the washing chamber 11 to enter the washing chamber 11, is also opened on the second side wall 13 of the housing 1. The first side wall 12 and the second side wall 13 of the housing 1 are arranged opposite to or adjacent to each other. Of course, the first air inlet 14 and the second air inlet 15 can also be set on the same side wall of the housing 1, but the air intake direction of the first air inlet 14 and the second air inlet 15 needs to be set at an angle to ensure that the two airflows can collide.

[0059] The drying assembly 2 is located outside the washing chamber 11 and is capable of heating the airflow and sending the heated airflow into the washing chamber 11 through the first air inlet 14. Figure 1 , 4 As shown, in this embodiment, the drying assembly 2 includes an air inlet duct 21, a heating element 22, and a second airflow drive element. The air inlet duct 21 is disposed on the outside of the first side wall 12 of the corresponding housing 1. The air inlet duct 21 has a second air inlet 211 and a second air outlet 212. The second air inlet 211 is in fluid communication with the outside, and the second air outlet 212 is in fluid communication with the first air inlet 14 of the housing 1. The second airflow drive element is used to drive the airflow from the second air inlet 211 to the second air outlet 212. The heating element 22 is disposed in the air inlet duct 21 and located on the airflow path from the second air inlet 211 to the second air outlet 212.

[0060] The second airflow drive component is a second fan 23 located in the air inlet duct 21. The air inlet of the second fan 23 is in fluid communication with the second air inlet 211, and the air outlet of the second fan 23 is in fluid communication with the second air outlet 212. The heating element 22 can be a PTC heating element. The airflow enters the air inlet duct 21, is heated by the heating element 22, and then enters the washing chamber 11 through the first air inlet 14.

[0061] like Figure 2 , 5 As shown in Figure 6, a box 3 is provided on the outside of the second side wall 13 of the corresponding box 1. The box 3 has a first air duct 31 inside. The box 3 has a first air inlet 32 ​​that allows airflow to enter the first air duct 31 and a first air outlet 33 that allows airflow to flow out of the first air duct 31. The first air outlet 33 is in fluid communication with the second air inlet 15.

[0062] The first air inlet 32 ​​is in communication with the external environment, so that the airflow from the external environment can directly enter the washing chamber 11.

[0063] The housing 3 is equipped with a first airflow drive component for driving airflow from the first air inlet 32 ​​to the first air outlet 33. The first airflow drive component is a first fan 34, with its air inlet and outlet in fluid communication. When the first fan 34 operates, it draws external airflow into the housing 3, and then the airflow flows from the first air outlet 33 and the second air inlet 15 into the washing chamber 11. The first fan 34 and the second fan 23 together constitute an airflow drive component for sending airflow from outside the washing chamber 11 into the washing chamber 11 through the first air inlet 14 and the second air inlet 15, thereby causing the airflow entering from the first air inlet 14 and the second air inlet 15 to collide within the washing chamber.

[0064] In this embodiment, the housing 3 is a respirator. The first air outlet 33 allows airflow from the first air duct 31 to enter the washing chamber 11 through the second air inlet 15, and also allows airflow from the washing chamber 11 to flow into the first air duct 31 through the second air inlet 15. The first air outlet 33 can both intake and exhaust air. The housing 3 is also provided with a second connecting port 35 that is in fluid communication with the outside environment. The housing 3 has a second air duct 36 that connects the first air outlet 33 and the second connecting port 35. Thus, the second air duct 36 serves as an exhaust channel, allowing airflow to escape from the second air duct 36 to relieve pressure when the pressure in the washing chamber 11 is too high. In addition, the second air duct 36 is inverted U-shape, so it can also serve as a drainage channel. When the liquid level in the washing chamber 11 is too high, water can be discharged from the second air duct 36 under siphon action. It is preferable that the cross-sectional area of ​​the section of the second air duct 36 adjacent to the first air outlet 33 gradually decreases along the direction of fluid flow, making it easier to form a siphon.

[0065] During the cleaning process, water in the washing chamber 11 may splash out from the first air outlet 33 and flow into the first fan 34. Since the first fan 34 contains electrical components or chips that are easily damaged by water, a portion of the first air duct 31 is designated as a receiving cavity 37 to house the first fan 34, located above the first air outlet 33. This ensures that even if water splashes out from the first air outlet 33, it will flow back into the washing chamber 11 under gravity. Alternatively, if the housing 1 does not have an overflow port, the receiving cavity 37 can be positioned upstream of the first air outlet 33, following the airflow direction.

[0066] Preferably, the accommodating cavity 37 is provided with a guide rib (not shown in the figure), and the end of the guide rib faces the air inlet of the first fan 34. Even if water vapor enters the first fan 34, it will flow out from the air inlet of the first fan 34 along the guide rib and will not flow downward into the chip of the first fan.

[0067] In addition, such as Figure 7 As shown, a drain hole 341 is provided on the bottom wall of the first fan 34, and a drain outlet 39 corresponding to and communicating with the drain hole 341 is provided on the bottom wall of the accommodating cavity 37. In this way, the water vapor entering the first fan 34 can be discharged from the drain outlet 39, and the drain outlet 39 can be connected to the second air duct 36, and the condensate flows out from the second air duct 36.

[0068] In this embodiment, the second air inlet 15 is located at the upper part of the washing chamber 11, and the first air inlet 14 is located at the lower part of the washing chamber 11. The hot airflow of the drying component 2 enters the lower part of the washing chamber 11 from the first air inlet 14. The airflow dries the tableware as it flows upward, resulting in a good drying effect. The second air inlet 15 is positioned at a higher position to facilitate air outlet because it not only takes in air but also vents air.

[0069] Of course, the positional relationship between the first air inlet 14 and the second air inlet 15 is not limited to this. It is also possible that the first air inlet 14 and the second air inlet 15 are at the same height, or that the first air inlet 14 is located in the lower part of the washing chamber 11 and the second air inlet 15 is located in the upper part of the washing chamber 11; or that the first air inlet 14 and the second air inlet 15 are both located in the upper or lower part of the washing chamber 11 but at different heights; or that the first air inlet 14 is located in the upper part of the washing chamber 11 and the second air inlet 15 is located in the lower part of the washing chamber 11.

[0070] Example 2

[0071] like Figures 8-12 As shown, the difference between this embodiment and Embodiment 1 is that:

[0072] 1. The first fan 34 does not have a drain hole 341, and the receiving cavity 37 does not have a drain outlet 39. In this embodiment, water vapor is prevented from entering the first fan 34 in the following way:

[0073] The accommodating cavity 37 is located diagonally above the first air outlet 33. The air outlet of the first fan 34 faces the section of the first air duct 31 downstream of the accommodating cavity 37. The bottom wall of the first fan 34 is inclined downwards towards the section of the first air duct 31 downstream of the accommodating cavity 37, with an inclination angle of about 3 degrees. The bottom wall of the accommodating cavity 37 is also inclined downwards towards the section of the first air duct 31 downstream of the accommodating cavity 37, with an inclination angle of about 3 degrees. In this way, the water vapor entering the accommodating cavity 37 will flow out of the accommodating cavity 37 along the bottom wall under the action of gravity.

[0074] 2. The side wall of the housing 1 is also provided with a first air outlet 16 that communicates with the washing chamber 11, and the first air inlet 32 ​​is fluidly connected to the first air outlet 16. The washing machine also includes a condenser 4, which has a condenser section located in the first air duct 31. In this way, the airflow flowing out of the washing chamber 11 is condensed by the condenser section, and the dry airflow flows back into the washing chamber 11, working together with the hot airflow flowing in from the first air inlet 14 to achieve high drying efficiency for the tableware.

[0075] In this embodiment, the condenser 4 is a semiconductor refrigeration device, the condensing part is the cold end 41 of the semiconductor refrigeration device, and the hot end 42 of the semiconductor refrigeration device is located outside the housing 3. The outer wall of the housing 3 is also provided with a heat dissipation device for dissipating heat from the hot end 42. In this embodiment, the heat dissipation device is a third fan 43. The air inlet of the third fan 43 is connected to the outside, and the air outlet of the third fan 43 faces the hot end 42 of the semiconductor refrigeration device. The third fan 43 blows cold air from the outside towards the hot end 42 to dissipate heat from the hot end 42, thereby bringing the cold end 41 below the dew point temperature of the housing 1, resulting in good condensation effect.

[0076] In addition, a condensate channel 361 is provided between the first air duct 31 and the second air duct 36. The water inlet of the condensate channel 361 is located directly below the cold end 41 to guide the condensate at the cold end 41 away.

[0077] In the two embodiments described above, in order to make the airflow entering from the first air inlet 14 collide more fully with the airflow entering from the second air inlet 15, thereby further improving the drying effect, the following means are also adopted:

[0078] The angle α between the airflow direction at the first air inlet 14 and the airflow direction at the second air inlet 15 is between 60° and 300°, preferably between 90° and 270°, more preferably between 135° and 225°, and most preferably 180°; and the first air inlet 14 is located on the first side wall 12 of the housing 1, and the second air inlet 15 is located on the second side wall 13 of the housing 1, with the first side wall 12 and the second side wall 13 of the housing 1 being arranged opposite to or adjacent to each other.

[0079] Alternatively, with an angle α between the airflow direction at the first air inlet 14 and the airflow direction at the second air inlet 15, the vertical distance between the first air inlet 14 and the bottom wall of the housing 1 is H1, and the vertical distance between the second air inlet 15 and the bottom wall of the housing 1 is H2, where 0.9H1≤H2≤1.1H1. Preferably, the centerline of the first air inlet 14 and the centerline of the second air inlet 15 are basically on the same horizontal plane.

[0080] A schematic diagram showing the collision between the airflow entering from the first air intake 14 and the airflow entering from the second air intake 15 is shown below. Figure 13As shown in the figure, the arrows indicate the direction of airflow.

[0081] 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.

[0082] The term "fluid connectivity" as used in this invention refers to the spatial relationship between two components or parts (hereinafter referred to as the first part and the second part, respectively), that is, a fluid (gas, liquid, or a mixture of both) can flow from the first part along a flow path and / or be transported to the second part. This can be a direct connection between the first part and the second part, or an indirect connection between the first part and the second part through at least one third party. This third party can be a fluid channel such as a pipe, channel, conduit, guide, hole, or groove, or a chamber or combination thereof that allows fluid to flow through.

Claims

1. A cleaning machine, comprising The box (1) has a washing chamber (11) inside, and the box (1) has a first air inlet (14) that is in fluid communication with the washing chamber (11); The drying assembly (2) is located outside the washing chamber (11) and can heat the airflow and send the heated airflow into the washing chamber (11) through the first air inlet (14); Its features are, The housing (1) is also provided with a second air inlet (15) that allows airflow from outside the washing chamber (11) to enter the washing chamber (11), and, The cleaning machine also includes an airflow drive component, which is used to send the airflow outside the washing chamber (11) into the washing chamber (11) from the first air inlet (14) and the second air inlet (15), so that the airflow entering from the first air inlet (14) and the second air inlet (15) collides in the washing chamber (11); A box body (3) is provided on the outside of the box body (1). The box body (3) has a first air duct (31) inside. The box body (3) has a first air inlet (32) that allows airflow to enter the first air duct (31) and a first air outlet (33) that allows airflow to flow out of the first air duct (31). The first air outlet (33) is fluidly connected to the second air inlet (15). The airflow driving component includes a first airflow driving component disposed in the box body (3). The angle (α) between the airflow direction at the first air inlet (14) and the airflow direction at the second air inlet (15) is between 60° and 300°.

2. The cleaning machine according to claim 1, characterized in that: The first airflow drive component is a first fan (34) disposed outside the housing (1). The air inlet of the first fan (34) is in fluid communication with the first air inlet (32), and the air outlet of the first fan (34) is in fluid communication with the first air outlet (33).

3. The cleaning machine according to claim 2, characterized in that: A portion of the first air duct (31) is a receiving cavity (37) for accommodating the first fan (34), and the receiving cavity (37) is located upstream of the first air outlet (33) along the airflow direction.

4. The cleaning machine according to claim 3, characterized in that: The accommodating cavity (37) is located above the first air outlet (33).

5. The cleaning machine according to claim 4, characterized in that: The accommodating cavity (37) is located obliquely above the first air outlet (33), the air outlet of the first fan (34) faces the section of the first air duct (31) located downstream of the accommodating cavity (37), and the bottom wall of the first fan (34) is inclined from top to bottom towards the section of the first air duct (31) located downstream of the accommodating cavity (37).

6. The cleaning machine according to claim 4, characterized in that: The accommodating cavity (37) is located obliquely above the first air outlet (33), and the bottom wall of the accommodating cavity (37) is inclined from top to bottom toward the section of the first air duct (31) located downstream of the accommodating cavity (37).

7. The cleaning machine according to claim 3, characterized in that: The bottom wall of the first fan (34) is provided with a drain hole (341), and the bottom wall of the accommodating cavity (37) is provided with a drain outlet (39) that is connected to the drain hole (341).

8. The cleaning machine according to any one of claims 1 to 7, characterized in that: The first air inlet (32) is in fluid communication with the outside environment.

9. The cleaning machine according to any one of claims 1 to 7, characterized in that: The side wall of the housing (1) is also provided with a first air outlet (16) that is connected to the washing chamber (11), and the first air inlet (32) and the first air outlet (16) are in fluid communication.

10. The cleaning machine according to claim 9, characterized in that: It also includes a condenser (4), which has a condensation section disposed in the first air duct (31).

11. The cleaning machine according to claim 10, characterized in that: The condenser (4) is a semiconductor refrigeration component, and the condensation section is the cold end (41) of the semiconductor refrigeration component.

12. The cleaning machine according to claim 11, characterized in that: The hot end (42) of the semiconductor cooling device is located outside the housing (3), and the outer wall of the housing (3) is also provided with a heat dissipation device for dissipating heat from the hot end (42).

13. The cleaning machine according to claim 12, characterized in that: The heat sink is a third fan (43), the air inlet of the third fan (43) is connected to the outside, and the air outlet of the third fan (43) faces the hot end (42) of the semiconductor cooling device.

14. The cleaning machine according to any one of claims 1 to 7, characterized in that: The box (3) is a respirator. The first air outlet (33) can allow the airflow in the first air duct (31) to enter the washing chamber (11) through the second air inlet (15), and can also allow the airflow in the washing chamber (11) to flow into the first air duct (31) through the second air inlet (15).

15. The cleaning machine according to claim 14, characterized in that: The box (3) is also provided with a second communication port (35) that is in fluid communication with the outside. The box (3) has a second air duct (36) that connects the first air outlet (33) and the second communication port (35).

16. The cleaning machine according to claim 15, characterized in that: The second air duct (36) is inverted U-shape.

17. The cleaning machine according to claim 14, characterized in that: The second air inlet (15) is located at the upper part of the washing chamber (11), and the first air inlet (14) is located at the lower part of the washing chamber (11).

18. The cleaning machine according to any one of claims 1 to 7, characterized in that: The first air inlet (14) and the second air inlet (15) are at the same height; Alternatively, the first air inlet (14) is located at the lower part of the washing chamber (11), and the second air inlet (15) is located at the upper part of the washing chamber (11); Alternatively, the first air inlet (14) and the second air inlet (15) are both located in the upper or lower part of the washing chamber (11), but at different heights; Alternatively, the first air inlet (14) is located at the upper part of the washing chamber (11), and the second air inlet (15) is located at the lower part of the washing chamber (11).

19. The cleaning machine according to any one of claims 1 to 7, characterized in that: The first air inlet (14) is located on the first side wall (12) of the housing (1), and the second air inlet (15) is located on the second side wall (13) of the housing (1). The first side wall (12) and the second side wall (13) of the housing (1) are arranged opposite to or adjacent to each other.

20. The cleaning machine according to any one of claims 1 to 7, characterized in that: The first air inlet (14) and the second air inlet (15) are located on the same side wall of the housing (1).

21. The cleaning machine according to any one of claims 1 to 7, characterized in that: The drying assembly (2) includes an air inlet duct (21) and a heating element (22). The air inlet duct (21) is provided on the outside of the housing (1). The air inlet duct (21) has a second air inlet (211) and a second air outlet (212). The second air inlet (211) is in fluid communication with the outside, and the second air outlet (212) is in fluid communication with the first air inlet (14) of the housing (1). The airflow drive includes a second airflow drive for driving the airflow from the second air inlet (211) to the second air outlet (212). The heating element (22) is located in the air inlet duct (21) and on the airflow path from the second air inlet (211) to the second air outlet (212).

22. The cleaning machine according to claim 21, characterized in that: The second airflow drive is a second fan (23) installed in the air inlet duct (21). The air inlet of the second fan (23) is fluidly connected to the second air inlet (211), and the air outlet of the second fan (23) is fluidly connected to the second air outlet (212).

23. The cleaning machine according to claim 1, characterized in that: The angle (α) between the airflow direction at the first air inlet (14) and the airflow direction at the second air inlet (15) is between 90° and 270°.

24. The cleaning machine according to claim 23, characterized in that: The first air inlet (14) is located on the first side wall (12) of the housing (1), and the second air inlet (15) is located on the second side wall (13) of the housing (1). The first side wall (12) and the second side wall (13) of the housing (1) are arranged opposite to or adjacent to each other.

25. The cleaning machine according to claim 1, characterized in that: The vertical distance between the first air inlet (14) and the bottom wall of the box (1) is H1, and the vertical distance between the second air inlet (15) and the bottom wall of the box (1) is H2, where 0.9H1≤H2≤1.1H1.

26. The cleaning machine according to claim 25, characterized in that: The centerline of the first air inlet (14) and the centerline of the second air inlet (15) are basically on the same horizontal plane.

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