Air duct assembly and cleaning equipment

Abstract

The utility model discloses an air duct assembly and cleaning equipment, and belongs to the field of household appliances. The air duct assembly comprises an air duct body, a fan, a heater and an air processor. The air duct body is provided with an air inlet and an air outlet; the fan is configured to drive air to flow from the air inlet to the air outlet under the condition that the fan is started; the heater is configured to heat gas flowing through the air duct body under the condition that the heater is started; the air processor is arranged between the heater and the air outlet and used for releasing sterilization substances. According to the air conditioner, the air processor is arranged between the heater and the air outlet, so that the air processor is located at the downstream of the heater, sterilization substances released by the air processor can enter the target environment without being heated by the heater, and the influence of high temperature of the heater on the activity of the sterilization substances is reduced; the action time of sterilization substances can be prolonged, so that the sterilization and odor removal effects are improved.

Description

Technical Field

[0001] The present application belongs to the technical field of household appliances, and in particular, relates to an air duct assembly and a cleaning device. Background Art

[0002] With the development of science and technology, dishwashers and other cleaning equipment are equipped with air handlers, which are used to sterilize and remove odors from the cleaning chamber of the dishwasher, extend the storage time of dishes, and reduce bacterial contamination. At present, air handlers mostly use ion generators for sterilization and odor removal. The working principle of the ion generator is: low voltage is increased to positive high voltage and negative high voltage through a booster circuit, and the positive high voltage and negative high voltage are used to ionize the air (mainly oxygen) to produce a large number of positive ions and negative ions, and at the same time, active substances such as ozone and hydroxyl free radicals are produced. The moment when positive ions and negative ions neutralize positive and negative charges in the air, huge energy is released, which changes the bacterial structure around them or converts energy, achieving the effect of sterilization and odor removal.

[0003] In the related art, the air handler is usually installed in the air duct assembly so that the sterilizing substances released by the air handler are brought into the clean chamber through gas flow, thereby achieving sterilization and deodorization of the clean chamber. However, this structural solution has poor sterilization and deodorization effects and needs to be improved. Utility Model Content

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes an air duct assembly and a cleaning device, which can reduce the influence of the high temperature of the heater on the activity of the bactericidal substance, prolong the action time of the bactericidal substance, and thus improve the bactericidal and odor-removing effect.

[0005] In a first aspect, the present application provides an air duct assembly, comprising:

[0006] An air duct body, wherein the air duct body has an air inlet and an air outlet;

[0007] a fan, wherein the fan is configured to drive air from the air inlet to the air outlet when turned on;

[0008] a heater, wherein the heater is configured to heat the gas flowing through the air duct body when turned on;

[0009] An air handler is disposed between the heater and the air outlet and is used for releasing a sterilizing substance.

[0010] According to the air duct assembly provided in the embodiment of the present application, the air processing unit is arranged between the heater and the air outlet so that the air processing unit is located downstream of the heater. The bactericidal substance released by the air processing unit can enter the target environment without being heated by the heater, thereby reducing the influence of the high temperature of the heater on the activity of the bactericidal substance, and can extend the action time of the bactericidal substance, thereby improving the bactericidal and odor-removing effect.

[0011] According to one embodiment of the present application, the cleaning device includes an inner tank, the inner tank forms a cleaning chamber, and the air inlet and the air outlet are connected to the cleaning chamber.

[0012] In this embodiment, the air duct body is an internal circulation air duct, and the air inlet and outlet of the air duct body are connected to the cleaning chamber of the cleaning equipment so that the sterilization substance can enter the cleaning chamber through multiple cycles, which can improve the efficiency of the air processing unit, reduce dead corners, and improve the sterilization and odor removal effects.

[0013] According to one embodiment of the present application, the air inlet and the air outlet are not coplanar.

[0014] In this embodiment, the air inlet and the air outlet are not coplanar, so as to adapt to cleaning equipment in which the installation plane of the fan and the internal circulation outlet of the cleaning chamber are located on different planes.

[0015] According to one embodiment of the present application, the air duct body includes:

[0016] An upper air duct, wherein the upper air duct is provided with the air inlet, and the fan is installed in the upper air duct;

[0017] A downwind duct, the inlet of the downwind duct is connected to the outlet of the upwind duct, the downwind duct is provided with the air outlet, and the heater and the air handler are located in the downwind duct;

[0018] Wherein, the extension direction of the upper air duct is perpendicular to the extension direction of the lower air duct.

[0019] In this embodiment, the heater and the air handler are located in the downwind duct. The heater and the air handler are arranged close to the air outlet of the duct body to shorten the distance from the air handler to the target environment. Compared with an excessively long circulation duct, this can reduce the attenuation of the bactericidal substance along the duct body, increase the concentration of the bactericidal substance entering the clean chamber, and improve the bactericidal and odor-removing effect.

[0020] According to an embodiment of the present application, the heater and the air handling unit are distributed up and down along an extension direction of the downwind duct.

[0021] In this embodiment, on the one hand, the bactericidal substance released by the air processing unit can enter the target environment without being heated by the heater, thereby reducing the impact of the high temperature of the heater on the activity of the bactericidal substance, prolonging the action time of the bactericidal substance, effectively killing bacteria, viruses and other microorganisms, reducing odors and pollutants, and thus improving the bactericidal and odor-removing effects; on the other hand, by arranging the air processing unit close to the air outlet, the diffusion distance of the bactericidal substance in the air duct body can be shortened, the attenuation of the bactericidal substance along the air duct body can be reduced, the concentration of the bactericidal substance entering the clean chamber can be increased, and the bactericidal and odor-removing effects can be improved.

[0022] In a second aspect, the present application provides a cleaning device, the cleaning device comprising:

[0023] An inner tank, wherein the inner tank forms a cleaning chamber;

[0024] As in the air duct assembly described in any of the above embodiments, the air duct assembly is installed in the inner tank, and the air inlet and the air outlet are both connected to the cleaning chamber.

[0025] According to the cleaning equipment provided in the embodiment of the present application, an air processing unit is installed in the air duct body, and the air inlet and outlet of the air duct body are connected to the cleaning chamber of the cleaning equipment for internal air circulation, so that the sterilizing substance can enter the cleaning chamber through multiple cycles, thereby improving the efficiency of the air processing unit, reducing dead corners, and improving the sterilization and odor removal effects.

[0026] According to the cleaning device of the present application, the air inlet is located on the top wall of the cleaning chamber, and the air outlet is located on the lower side of the cleaning chamber.

[0027] According to the cleaning device of the present application, the fan is installed above the top wall of the inner tank, and at least a portion of the air duct body is located above the top wall of the inner tank and outside the side wall.

[0028] According to the cleaning device of the present application, the cleaning chamber has a first side and a second side that are arranged opposite to each other, the air outlet is located on the second side, and the distance from the center of the air inlet to the second side is smaller than the distance from the center of the air inlet to the first side.

[0029] According to the cleaning device of the present application, the air inlet is arranged in an area of ​​the top wall of the cleaning chamber close to the side and the back plate.

[0030] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0032] Figure 1 It is one of the structural schematic diagrams of the cleaning device provided in the embodiment of the present application;

[0033] Figure 2 This is the second structural schematic diagram of the cleaning device provided in the embodiment of the present application.

[0034] Reference numerals:

[0035] Air handler 1, air duct body 2, upper air duct 21, air inlet 211, lower air duct 22, air outlet 221; heater 3, fan 4;

[0036] Inner container 5 , first side surface 51 , second side surface 52 , back plate 53 , cleaning chamber 54 . DETAILED DESCRIPTION

[0037] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0038] Reference below Figure 1 and Figure 2 An air duct assembly and a cleaning device according to an embodiment of the present application are described.

[0039] Among them, the cleaning equipment can be household appliances with sterilization function such as disinfection cabinets, dishwashers, washing machines, air conditioners or air purifiers.

[0040] The air duct assembly can provide internal air circulation, external air circulation or internal and external mixed circulation for the cleaning equipment.

[0041] like Figure 1 As shown, the air duct assembly provided in the embodiment of the present application is applied to a cleaning device, and the air duct assembly includes: an air duct body 2 and an air handler 1.

[0042] Among them, the air treatment unit 1 can be applied to the above-mentioned cleaning equipment with sterilization function.

[0043] For example, the air handler 1 can be installed in an air duct assembly of a cleaning device such as a dishwasher. The airflow entering the air duct assembly passes through the air handler 1, where it is sterilized. At the same time, active substances such as sterilizing substances generated by ionization are carried into the cleaning chamber 54. The active substances can sterilize and deodorize the cleaning chamber 54.

[0044] For example, the air processing unit 1 can also be installed in the air outlet duct of the air conditioner. A part of the airflow blown through the air outlet duct can first pass through the processing module. This part of the airflow is not only sterilized by the processing module, but also carries active substances such as bactericidal substances generated by ionization into the room. The active substances can sterilize the air in the indoor environment, thereby enabling the air conditioner to have a better air purification function.

[0045] like Figure 1 and Figure 2 As shown, the air duct assembly includes: an air duct body 2, a fan 4, a heater 3 and an air handler 1.

[0046] The air duct body 2 has an air inlet 211 and an air outlet 221; the fan 4 is configured to drive air from the air inlet 211 to the air outlet 221 when turned on; the heater 3 is configured to heat the gas flowing through the air duct body 2 when turned on; the air handler 1 is arranged between the heater 3 and the air outlet 221 for releasing sterilizing substances.

[0047] Among them, the air outlet 221 of the air duct body 2 is connected to the cleaning chamber 54 of the cleaning equipment, and the air inlet 211 of the air duct body 2 can be connected to the external environment or the cleaning chamber 54, and the air flow flows from the air inlet 211 of the air duct body 2 to the air outlet 221 of the air duct body 2.

[0048] The air duct body 2 is installed in the inner liner 5 of the cleaning equipment, and the inner liner 5 forms a cleaning chamber 54. The air duct body 2 can provide the cleaning chamber 54 with an air circulation mode of internal air circulation, external air circulation or internal and external mixed circulation, which can be determined according to the actual working scenario.

[0049] The fan 4 can be installed in the air duct body 2, with the air inlet side of the fan 4 facing the air inlet 211 of the air duct body 2. The gas in the cleaning chamber 54 or the gas in the external environment is sucked into the air duct by the fan 4, and after being heated by the heater 3, it is driven by the fan 4 to be discharged into the cleaning chamber 54 from the air outlet 221 of the air duct, forming air flow. The fan 4 can be a centrifugal air supply device, an exhaust fan, a ventilation air supply device, or other equipment that can drive gas flow.

[0050] By providing the fan 4, the flow of gas in the air duct body 2 can be accelerated. Compared with the air duct structure in which the bactericidal substance diffuses freely, the present application can accelerate the diffusion speed of the bactericidal substance and improve the efficiency of sterilization and deodorization.

[0051] When turned on, the heater 3 heats the gas flowing through the air duct. The heater 3 can be installed in the air duct to perform direct contact heat exchange with the gas flowing through the air duct; the heater 3 can also be installed outside the air duct to indirectly exchange heat with the gas flowing through the air duct by heating the pipe wall of the air duct.

[0052] The air handler 1 can adopt a dielectric barrier discharge mode or a corona discharge mode, which can be selected according to the usage scenario. The air handler 1 is located in the air duct body 2, and the air handler 1 ionizes the air to produce sterilizing substances. The sterilizing substances can be purified ion groups such as oxygen negative ions, positive ions, free radicals, and ozone generated by the processing module ionizing the air.

[0053] In this embodiment, the air processing unit 1 is located downstream of the heater 3. The bactericidal substance released by the air processing unit 1 can enter the target environment without being heated by the heater 3, thereby reducing the impact of the high temperature of the heater 3 on the activity of the bactericidal substance, and can extend the action time of the bactericidal substance. It can effectively kill bacteria, viruses and other microorganisms, reduce odors and pollutants, and thus improve the bactericidal and odor-removing effects.

[0054] The target environment may include the cleaning chamber 54 and at least a portion of the air duct body 2 .

[0055] In the related art, the air handler 1 is installed between the fan 4 and the heater 3, and the bactericidal substance generated by the ion sheet of the air handler 1 can enter the cleaning chamber 54 of the cleaning device together with the hot air flow generated by the heater 3, so that the dishwasher can perform hot air drying and sterilization at the same time as drying and storing. However, in this method, the activity of the bactericidal substance will be reduced when it contacts the heater 3, resulting in a short action time of the bactericidal substance, which needs to be improved.

[0056] According to the air duct assembly provided in the embodiment of the present application, by setting the air processing unit 1 between the heater 3 and the air outlet 221, so that the air processing unit 1 is located downstream of the heater 3, the bactericidal substance released by the air processing unit 1 can enter the target environment without being heated by the heater 3, thereby reducing the influence of the high temperature of the heater 3 on the activity of the bactericidal substance, and can extend the action time of the bactericidal substance. It can effectively kill microorganisms such as bacteria and viruses, reduce odors and pollutants, and thus improve the bactericidal and odor-removing effects.

[0057] In some embodiments, the cleaning device includes an inner tank 5 , the inner tank 5 forms a cleaning chamber 54 , and the air inlet 211 and the air outlet 221 are in communication with the cleaning chamber 54 .

[0058] In the related art, the air handler 1 is mostly installed in the external circulation air duct. The sterilizing substances released by the air handler 1 are discharged out of the clean chamber 54 along with the external circulation and are not fully utilized, resulting in waste. At the same time, the sterilizing substances cannot act on every corner of the clean chamber 54, resulting in low efficiency.

[0059] In this embodiment, the air duct component is an internal circulation component, the air duct body 2 is an internal circulation air duct, and the air inlet 211 and the air outlet 221 of the air duct body 2 are both connected to the cleaning chamber 54 of the cleaning equipment, so that the sterilization substance can enter the cleaning chamber 54 through multiple cycles, which can improve the efficiency of the air processing unit 1, reduce dead corners, and improve the sterilization and odor removal effects.

[0060] In some embodiments, the air inlet 211 and the air outlet 221 are not coplanar, and the air inlet 211 and the air outlet 221 may be located in two planes whose normals are perpendicular to each other, or in two planes whose normals are at a target angle.

[0061] In the related art, in order to extend the circulation path of hot air in the hot air drying of the cleaning chamber, make full use of the thermal energy of the hot air, and improve the full-chamber drying and dead-corner drying effects of the cleaning chamber, the installation plane of the fan and the internal circulation outlet of the cleaning chamber are usually set on different surfaces of the cleaning chamber. However, the applicant has found through research that when the installation plane of the fan and the internal circulation outlet of the cleaning chamber are located on different surfaces, tolerance and sealing problems will arise when the cleaning chamber and the air duct structure are assembled, and the assembly difficulty and subsequent use effect are poor.

[0062] In this embodiment, the air duct body 2 can be bent, or the air duct body 2 can be a split combination structure so that the air inlet 211 and the air outlet 221 are not coplanar, thereby being able to adapt to cleaning equipment in which the installation plane of the fan 4 and the internal circulation outlet of the cleaning chamber 54 are located on different planes.

[0063] In some embodiments, Figure 1 As shown, the air duct body 2 includes: an upper air duct 21 and a lower air duct 22, the upper air duct 21 is provided with an air inlet 211, and the fan 4 is installed in the upper air duct 21; the inlet of the lower air duct 22 is connected to the outlet of the upper air duct 21, the lower air duct 22 is provided with an air outlet 221, the heater 3 and the air handler 1 are located in the lower air duct 22; wherein, the extension direction of the upper air duct 21 is perpendicular to the extension direction of the lower air duct 22.

[0064] The lengths of the upper air duct 21 and the lower air duct 22 can be set according to the height of the cleaning equipment to adapt to cleaning equipment of different heights. The upper air duct 21 and the lower air duct 22 can be connected by plug-in connection, snap-on connection or threaded connection.

[0065] In this embodiment, the heater 3 and the air handler 1 are located in the lower air duct 22. The heater 3 and the air handler 1 are arranged close to the air outlet 221 of the air duct body 2 to shorten the distance between the air handler 1 and the target environment. Compared with an excessively long circulation duct, the attenuation of the bactericidal substance along the air duct body 2 can be reduced, the concentration of the bactericidal substance entering the clean chamber 54 can be increased, and the bactericidal and odor-removing effect can be improved.

[0066] In the air duct assembly of the embodiment of the present application, the extension direction of the upper air duct 21 is perpendicular to the extension direction of the lower air duct 22. The upper air duct 21 and the lower air duct 22 can be located on two adjacent surfaces of the inner liner 5, and the air duct body 2 is set to a structure in which the upper air duct 21 and the lower air duct 22 are separated. It can be adapted to cleaning equipment in which the installation plane of the fan 4 and the internal circulation outlet of the cleaning chamber 54 are located on different surfaces. When assembling with the cleaning equipment, the tolerance of the inner liner 5 generated in the production process can be compensated by replacing the upper air duct 21 and the lower air duct 22 of different lengths and sizes, thereby reducing the difficulty of assembly. At the same time, it can be adapted to cleaning equipment of different heights to improve the reliability and usage scenarios of use.

[0067] During actual installation, the upper air duct 21 can be entirely arranged above the inner liner 5, with the inlet of the lower air duct 22 extending above the inner liner 5 and connected to the outlet of the upper air duct 21; or, part of the upper air duct 21 can be arranged above the inner liner 5, with part of the upper air duct 21 bent and extending to the side wall of the inner liner 5, and the lower air duct 22 arranged on the side wall of the inner liner 5.

[0068] In some embodiments, the heater 3 and the air handler 1 are distributed up and down along the extension direction of the downwind duct 22 , and the air handler 1 is located downstream of the heater 3 . The sterilizing substance released by the air handler 1 can enter the target environment without being heated by the heater 3 .

[0069] When the heater 3 and the air handler 1 are turned on at the same time, the bactericidal substance released by the air handler 1 can diffuse into the target environment without passing through the heater 3, thereby reducing the influence of the high temperature of the heater 3 on the activity of the bactericidal substance.

[0070] When the heater 3 and the air handler 1 are not working at the same time, the air handler 1 can be turned on first for sterilization and deodorization, and then the heater 3 can be turned on after the deodorization is completed. This can accelerate the decomposition of ozone in the air duct body 2 and the cleaning chamber 54, and improve the sterilization and deodorization effect.

[0071] In this embodiment, on the one hand, the bactericidal substance released by the air processing unit 1 can enter the target environment without being heated by the heater 3, thereby reducing the influence of the high temperature of the heater 3 on the activity of the bactericidal substance, prolonging the action time of the bactericidal substance, effectively killing bacteria, viruses and other microorganisms, reducing odors and pollutants, and thus improving the bactericidal and odor-removing effects; on the other hand, by arranging the air processing unit 1 at a position close to the air outlet 221, the diffusion distance of the bactericidal substance in the air duct body 2 can be shortened, the attenuation of the bactericidal substance along the air duct body 2 can be reduced, the concentration of the bactericidal substance entering the clean chamber 54 can be increased, and the bactericidal and odor-removing effects can be improved.

[0072] An embodiment of the present application also provides a cleaning device, including: an inner tank 5 and an air duct assembly in any of the above embodiments, the inner tank 5 forms a cleaning chamber 54; the air duct assembly is installed on the inner tank 5, and the air inlet 211 and the air outlet 221 are both connected to the cleaning chamber 54.

[0073] In this embodiment, the air inlet 211 and the air outlet 221 of the air duct body 2 are both connected to the cleaning chamber 54. The fan 4 in the cleaning chamber 54 draws the air in the cleaning chamber 54 into the air duct body 2 from the air inlet 211, and drives the air to be discharged from the air outlet 221 of the air duct body 2 into the cleaning chamber 54, thereby realizing internal circulation.

[0074] According to the cleaning device provided in the embodiment of the present application, an air processor 1 is installed in the air duct body 2, and the air inlet 211 and the air outlet 221 of the air duct body 2 are connected to the cleaning chamber 54 of the cleaning device for internal air circulation, so that the sterilizing substance can enter the cleaning chamber 54 through multiple cycles, thereby improving the efficiency of the air processor 1, reducing dead corners, and improving the sterilization and odor removal effects.

[0075] In some embodiments, the air inlet 211 is located on the top wall of the cleaning chamber 54 , and the air outlet 221 is located on the lower side of the cleaning chamber 54 .

[0076] The air inlet 211 may be located at the center of the top wall of the cleaning chamber 54 or near the edge of the top wall of the cleaning chamber 54 , and the air outlet 221 may be located at the lower part of the adjacent side surface near the bottom surface.

[0077] In the cleaning chamber 54, the air flow circulates upward from a position near the bottom of the cleaning chamber 54, and the air inlet 211 is located on the top wall of the cleaning chamber 54. On the one hand, the uniformity of the temperature distribution in the cleaning chamber 54 can be improved by the flow direction of the air flow, which is beneficial to drying the entire chamber and reducing drying dead corners; on the other hand, it can reduce the water vapor from entering the internal circulation components such as the air duct, fan 4 and heater 3 through the air inlet 211, thereby protecting the internal circulation components.

[0078] In some embodiments, the fan 4 is installed above the top wall of the inner tank 5 , and at least a portion of the air duct body 2 is located above the top wall of the inner tank 5 and outside the side wall.

[0079] Among them, the air inlet 211 is located above the top wall of the inner liner 5, the air outlet 221 is located on the side wall of the inner liner 5, and the air duct is at least partially bent. The bending angle of the air duct can be determined according to the angle between the top wall of the inner liner 5 and the side wall of the inner liner 5. For example, the bending angle can be 90° to connect the air outlet 221 and the air inlet 211 located on different surfaces.

[0080] The air duct is located outside the inner liner 5 and does not occupy the inner space of the cleaning chamber 54 , thereby increasing the capacity of the cleaning chamber 54 .

[0081] Among them, the suction side of the fan 4 faces the cleaning chamber 54. When the fan 4 is running, the air with high temperature in the upper part of the cleaning chamber 54 can be introduced into the lower part of the cleaning chamber 54 through the air duct, which is beneficial to the uniformity of temperature distribution in the entire cleaning chamber 54.

[0082] In actual use, when the cleaning equipment is matched with an automatic door opening or automatic door opening and closing solution as the main means of dehumidification, the hot air in the cleaning chamber 54 will move upward and backward in the cleaning chamber 54 due to natural convection. This installation position of the air inlet 211 and the fan 4 can avoid a large amount of hot and humid air from remaining above the cleaning chamber 54, reduce drying dead corners, and help improve the overall drying effect and rate.

[0083] In some embodiments, Figure 1 As shown, the cleaning chamber 54 has a first side surface 51 and a second side surface 52 that are oppositely arranged, the air outlet 221 is located on the second side surface 52 , and the distance from the center of the air inlet 211 to the second side surface 52 is smaller than the distance from the center of the air inlet 211 to the first side surface 51 .

[0084] In this embodiment, the cleaning device further includes an exhaust component, which is a related component capable of creating normal pressure or negative pressure in the cleaning chamber 54. The exhaust component can be a fluid machine with an exhaust function such as an exhaust fan 4 or an air pump. When the cleaning chamber 54 is being dried with hot air, the exhaust component is used to discharge the water vapor that has evaporated or volatilized in the cleaning chamber 54 together with the gas to reduce the relative humidity of the air in the cleaning chamber 54, which is conducive to the evaporation of more residual water.

[0085] Among them, the air outlet 221 of the air duct body 2 is used to discharge the gas heated by the heater 3 into the cleaning chamber 54, the air inlet of the exhaust component is connected to the cleaning chamber 54, and the air inlet of the exhaust component is used to discharge the water vapor that has evaporated or volatilized in the cleaning chamber 54 together with the gas.

[0086] The gas heated by the heater 3 is discharged into the cleaning chamber 54 from the air outlet 221 of the air duct, and at least part of the hot gas is discharged from the cleaning chamber 54 from the air inlet of the exhaust component along with the water vapor, and the flow path of at least part of the hot gas is from the air outlet 221 of the air duct to the air inlet of the exhaust component.

[0087] In this embodiment, the exhaust component can be installed on the first side 51, and the exhaust component and the air outlet 221 are respectively located on the first side 51 and the second side 52 which are relatively set, and the air inlet 211 is located close to the second side 52 where the air outlet 221 is located, that is, the air inlet 211 is far away from the exhaust component.

[0088] By arranging the exhaust assembly and the air outlet 221 on opposite sides and arranging the air inlet 211 away from the exhaust assembly, when the exhaust assembly and the fan 4 are working at the same time, the flow path of the gas carrying the sterilizing substance in the cleaning chamber 54 can be extended, thereby improving the utilization efficiency of the sterilizing substance and achieving efficient sterilization and odor removal effects. At the same time, the uniformity of the gas mixing in the cleaning chamber 54 can be improved and dead corners can be reduced.

[0089] In some embodiments, Figure 1 and Figure 2 As shown, the air inlet 211 is disposed on the top wall of the cleaning chamber 54 near the side surface and the back plate 53 .

[0090] In this embodiment, the air inlet 211 is located at the rear corner of the top wall of the cleaning chamber 54, which can reduce the influence of the air inlet 211 on the pushing and pulling of the bowl basket, thereby increasing the depth and width of the bowl basket and improving the holding capacity of the bowl basket.

[0091] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0092] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0093] In the description of this application, "first feature" or "second feature" may include one or more of the features.

[0094] In the description of the present application, “plurality” means two or more.

[0095] In the description of the present application, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

[0096] In the description of the present application, “above”, “over” and “above” a first feature to a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0097] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0098] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. An air duct assembly, applied to cleaning equipment, characterized in that: The air duct assembly comprises: An air duct body, wherein the air duct body has an air inlet and an air outlet; a fan, wherein the fan is configured to drive air from the air inlet to the air outlet when turned on; a heater, wherein the heater is configured to heat the gas flowing through the air duct body when turned on; An air handler is disposed between the heater and the air outlet and is used for releasing a sterilizing substance.

2. The air duct assembly according to claim 1, characterized in that: The cleaning device comprises an inner liner, the inner liner forms a cleaning chamber, and the air inlet and the air outlet are in communication with the cleaning chamber.

3. The air duct assembly according to claim 1, characterized in that: The air inlet is not coplanar with the air outlet.

4. The air duct assembly according to any one of claims 1 to 3, characterized in that: The air duct body comprises: An upper air duct, wherein the upper air duct is provided with the air inlet, and the fan is installed in the upper air duct; A downwind duct, the inlet of the downwind duct is connected to the outlet of the upwind duct, the downwind duct is provided with the air outlet, and the heater and the air handler are located in the downwind duct; Wherein, the extension direction of the upper air duct is perpendicular to the extension direction of the lower air duct.

5. The air duct assembly according to claim 4, characterized in that: The heater and the air handling unit are distributed up and down along an extending direction of the downwind duct.

6. A cleaning device, characterized in that: include: An inner tank, wherein the inner tank forms a cleaning chamber; The air duct assembly according to any one of claims 1 to 5, wherein the air duct assembly is installed on the inner tank, and the air inlet and the air outlet are both connected to the cleaning chamber.

7. The cleaning device according to claim 6, characterized in that The air inlet is located on the top wall of the cleaning chamber, and the air outlet is located on the lower side of the cleaning chamber.

8. The cleaning device according to claim 6, characterized in that The fan is installed above the top wall of the inner container, and at least a portion of the air duct body is located above the top wall of the inner container and outside the side wall.

9. The cleaning device according to claim 6, characterized in that The cleaning chamber has a first side surface and a second side surface that are arranged opposite to each other, the air outlet is located on the second side surface, and the distance from the center of the air inlet to the second side surface is smaller than the distance from the center of the air inlet to the first side surface.

10. The cleaning device according to any one of claims 6 to 9, characterized in that: The air inlet is arranged on the top wall of the cleaning chamber in an area close to the side surface and the back plate.

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