Air peculiar smell filtering module and dish washing machine

Abstract

The embodiment of the utility model provides an air peculiar smell filtering module and a dish washing machine, and relates to the technical field of air filtering. The air peculiar smell filtering module comprises a shell, and at least one face of the shell is a planar base plate. The filtering unit is rotatably arranged in the shell, and the filtering unit comprises a filtering piece; the air inlet is formed in the chassis; an air outlet; and the air inlet and the air outlet are respectively positioned on two opposite sides of the filtering unit. According to the air peculiar smell filtering module and the dish washing machine, various peculiar smell filtering pieces are used for rotating operation and self-flushing cleaning, specific peculiar smell generating substances in air can be efficiently and rapidly adsorbed, meanwhile, the air peculiar smell filtering module and the dish washing machine can be continuously and circularly used after self-flushing peculiar smell, and the service life of the dish washing machine is prolonged. Therefore, peculiar smell in the dishwasher is effectively eliminated, service life is prolonged, and user experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air filtration, and in particular to an air odor filtering module and a dishwasher. Background Art

[0002] Commercially available dishwashers for washing dishes typically have a waste container to collect food scraps left during washing. However, users often fail to promptly remove the debris. Consequently, the prolonged retention of debris and the generation of odors within the enclosed dishwasher space can negatively impact user experience. Common dishwasher deodorization methods include air vents, ultraviolet light, and ozone release (e.g., Chinese patents CN217447665U and CN212755548U). These deodorize or sterilize the dishwasher space by installing an ultraviolet germicidal lamp or ozone generator above or on the side of the dishwasher cavity.

[0003] However, due to the limited range of the germicidal lamp and the impact of steam from the dishwasher on the light, when a large number of dishes are stored in the dishwasher, dishes that are farther from the light source cannot be fully sterilized, resulting in insufficient deodorization and sterilization. Furthermore, the production of ozone can cause users to experience an odor when opening the door, reducing the user experience. Some scientific studies have also found that ozone can have adverse effects on user health.

[0004] In addition, although there is currently a technology that uses an ion generator to deodorize a dishwasher (such as Chinese patent CN220675935U), the ion release usually takes a long time to deodorize, which is inconvenient for the user experience. Utility Model Content

[0005] The purpose of the utility model is to provide an air odor filtering module and a dishwasher, which use a variety of odor filtering elements to rotate and have a self-flushing and cleaning function, can efficiently and quickly absorb specific odor-generating substances in the air, and can be continuously recycled after self-flushing the odor, thereby effectively eliminating the odor in the dishwasher and extending its service life, thereby improving the user experience.

[0006] The embodiment of the present utility model is achieved as follows:

[0007] In the first aspect, the utility model provides an air odor filtering module, comprising: a shell, at least one side of which is configured as a flat chassis; a filter unit, which is rotatably arranged inside the shell and includes a filter element; an air inlet, which is opened on the chassis; and an air outlet; the air inlet and the air outlet are respectively located on both sides of the relative filter unit.

[0008] In an optional embodiment, the filter unit further includes: a turntable carrying the filter element; and a motor connected to the turntable to drive the turntable to rotate.

[0009] In an optional embodiment, the turntable and the chassis are circular, and the rotation axis of the turntable and the center of the chassis are located on the same axis.

[0010] In an optional embodiment, the turntable is provided with positioning ribs in a radial direction, the filter element is fixed to the turntable via the positioning ribs, and the filter element is configured to be surrounded by a coaxial radial extension of the turntable.

[0011] In an optional embodiment, the filter element includes a plurality of filter segments, and the plurality of filter segments are respectively arranged in a sector shape or a part of a sector shape having the same axis as the bottom plate.

[0012] In an alternative embodiment, the substrate is corrugated paper.

[0013] In an optional embodiment, it further includes: a driving wheel and a driven gear portion; the driving wheel is connected to the motor and is provided with a driving gear portion, and the driven gear portion is provided on the turntable; the driving gear portion drives the driven gear portion to move.

[0014] In an optional embodiment, the driven teeth are arranged on the periphery of the turntable, and the driving wheel and the motor are arranged outside the periphery of the turntable.

[0015] In an optional embodiment, it further includes: a flushing unit, the flushing unit includes a water inlet channel and a drain outlet, the water outlet end of the water inlet channel reaches the position where the filter unit is located, and the drain outlet is opened in the shell and faces downward in the direction of gravity.

[0016] In an optional embodiment, the flushing unit also includes: a flushing channel, which is located in the shell and connected to the water inlet channel; the flushing channel includes at least a first flushing channel and a second flushing channel connected to each other, one end of the first flushing channel is connected to the water outlet end and extends along the first direction, and the second flushing channel extends along the second direction.

[0017] In an optional embodiment, the flushing channel also includes: a third flushing channel, the third flushing channel is connected to the second flushing channel and extends along the first direction; the first direction is the same as the circumferential direction of the chassis, and the second direction is the same as the radial direction of the chassis.

[0018] In an optional embodiment, the flushing channel is in the shape of a groove opened in the housing, and has a plurality of flushing holes facing the filter element.

[0019] In an optional embodiment, the shell further includes: an opening portion, the opening portion corresponds to the filter element, and the opening portion is provided with a drying unit.

[0020] In an optional embodiment, the invention further comprises a cover body, wherein the cover body covers the flushing channel and the opening.

[0021] In an optional embodiment, it also includes: an air supply unit for connecting the air passage inside and outside the shell; the air supply unit includes: an air outlet, a centrifugal fan and a volute. The centrifugal fan is arranged in the volute, and the volute is connected to the air outlet.

[0022] In a second aspect, the present invention provides a dishwasher, comprising an air odor filtering module according to any one of the aforementioned embodiments, wherein an air inlet of the air odor filtering module is installed corresponding to a vent of the dishwasher.

[0023] The beneficial effects of the embodiments of the present invention are as follows: the embodiments of the present invention provide an air odor filtering module, comprising: a shell, at least one side of which is configured as a flat chassis; a filter unit, which is rotatably disposed inside the shell and includes a filter element; an air inlet, which is opened on the chassis; an air outlet; the air inlet and the air outlet are respectively located on both sides of the relative filter unit. The rotating filter unit can continuously contact the incoming air, and the incoming air can directly and fully contact each filter element, thereby achieving targeted and effective filtration of odors. At the same time, the embodiments of the present invention provide an air odor filtering module further comprising a flushing unit, which includes a water inlet channel and a drain outlet, the water outlet end of the water inlet channel reaches the location of the filter unit, and the drain outlet is opened in the shell and faces downward in the direction of gravity. After the filter element is flushed by the flushing unit to remove the odor, it can be continuously recycled, thereby effectively eliminating the odor in the dishwasher and extending its service life, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of an air odor filtration module;

[0026] Figure 2 Same as the front structural diagram of the module above;

[0027] Figure 3 Same as the schematic diagram of the back structure of the module above;

[0028] Figure 4 Same as above, the rear structure diagram of the module with the chassis hidden;

[0029] Figure 5Same as above module with the chassis and some filter components hidden.

[0030] Figure 6 Same as above, the front structure diagram of the module with the cover removed.

[0031] icon:

[0032] 1- Air odor filter module;

[0033] 10-housing; 101-chassis; 102-opening; 103-screw hole;

[0034] 20- filter unit; 201- filter element; 202- turntable; 203- motor; 2021- positioning rib; 2011- filter element; 2031- driven tooth portion; 204- rotating shaft;

[0035] 30-air inlet;

[0036] 40-air outlet;

[0037] 50-driving wheel; 501-driving gear

[0038] 60-flushing unit; 601-water inlet; 602-drain outlet; 6011-water outlet; 603-flushing channel; 6031-first flushing channel; 6032-second flushing channel, 6033-third flushing channel, 6034-flushing hole

[0039] 70-cover;

[0040] 80-air supply unit; 801-air outlet; 802-centrifugal fan; 803-volute. DETAILED DESCRIPTION

[0041] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0043] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0044] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0045] In addition, the terms "horizontal" and "vertical" do not mean that the components must be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", not that the structure must be completely horizontal, but can be slightly tilted.

[0046] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0047] Below, we will Figures 1 to 6 One embodiment of the air odor filtering module provided by the utility model is described in detail.

[0048] First, it should be noted that the air odor filtration module 1 provided by the present invention can also be referred to as an odor elimination module or an odor adsorption module. Its function is to remove odorous components (such as methyl mercaptan, hydrogen sulfide, acetic acid, etc.) in the air through adsorption and filtration, thereby achieving air odor purification. It also has the function of self-rinsing the filter material, realizing a recyclable filter function.

[0049] Please refer to Figure 1 , Figure 1 It is a three-dimensional structural diagram of an embodiment of the air odor filtering module 1 provided by the present invention.

[0050] As a module, the air odor filtering module 1 can be relatively easily installed and removed from an application device. For example, the air odor filtering module 1 of this embodiment can be installed in a dishwasher (not shown) to filter odors within the dishwasher. Of course, the air odor filtering module 1 can also be adaptably installed in devices such as kitchenware storage devices, disinfection cabinets, and shoe cabinets, achieving universal application.

[0051] Specifically, with reference to Figures 1-3 The structure of the air odor filtering module 1 is described in detail. Figure 2 1 is a schematic diagram of the front structure of the above embodiment, Figure 3 It is a schematic diagram of the back structure of the above embodiment.

[0052] The air odor filtering module 1 comprises a housing 10, which forms the main housing and shape of the air odor filtering module 1. Figure 1 As shown, the housing 10 is a three-dimensional structure with a hollow space inside for accommodating various components. Figure 2 As shown, the front of the housing 10 is roughly covered by a cover 70. The cover 70 is in the shape of a circular flat plate and is detachably mounted on the housing 10. The function of the cover 70 will be described below.

[0053] Combine Figure 2 and Figure 3 As shown, the back of the housing 10 is roughly circular and flat (based on the actual design requirements of this embodiment, the back of the motor 203 is integrated with the back of the housing 10, but the back of the motor 203 is integrated with the back of the housing 10). Figure 2 It can be seen that the back of the shell 10 itself is circular, and the design principle should also be circular. The specific function is described below; in addition, based on the design needs of screw holes, this embodiment has four screw hole positions protruding outward from the periphery of the back of the shell 10).

[0054] The back of the shell 10 is the chassis 101 of the air odor filter module 1. When the air odor filter module 1 is installed in the dishwasher, the chassis 101 is installed facing and close to the dishwasher. Therefore, the chassis 101 is designed to be flat so that it can be completely attached to the wall of the dishwasher, and the air in the dishwasher can be more efficiently sucked into the air odor filter module 1, that is, the air outside the dishwasher can be prevented from being sucked into the air odor filter module 1, thereby improving the filtration efficiency.

[0055] Please continue to refer to Figure 3The chassis 101 is circular and has an air inlet 30 formed therein. In this embodiment, the air inlet 30 is fan-shaped and concentric with the circular shape of the chassis 101, and is also provided with a grille. The air inlet 30 is used to draw air from the dishwasher into the air odor filter module 1 for filtration. Therefore, when the air odor filter module 1 is installed in the dishwasher, the air inlet 30 of the air odor filter module 1 should be located at the dishwasher's vent (not shown; the dishwasher's vent generally refers to an opening connecting the air inside the dishwasher with the air outside the dishwasher) to allow air from the dishwasher to be directly drawn into the air odor filter module 1. In other words, the air odor filter module 1 provided by the present invention is not suitable for use in dishwashers or other devices without vents. A filter element 201 can be seen inside the housing 10 corresponding to the air inlet 30.

[0056] Next, combine Figure 3 and Figure 4 , the filter unit 20 will be described. Figure 4 It is a schematic diagram of the back structure of the above embodiment with the chassis 101 hidden.

[0057] The filter unit 20 is used to filter out odors. Figure 4 As shown, the filter unit 20 includes a turntable 202 and a filter element 201. The turntable 202 is used to carry the filter element 201, and by rotating itself, the air entering from the air inlet 30 can fully contact the filter element 201, thereby achieving a more effective filtering effect.

[0058] The turntable 202 is circular, with the center of the circle serving as the rotation axis 204. Positioning ribs 2021 are provided radially on the turntable 202 (three positioning ribs 2021 are provided in this embodiment). The positioning ribs 2021 are used to secure the filter element 201 to the turntable 202. Specifically, the shape surrounding the positioning ribs 2021 is configured to be identical to the shape of the filter element 201. By squeezing the shape of the filter element 201, it can be snapped between the positioning ribs 2021. For another example, protruding snap-fitting ribs (not shown) can be provided on the positioning ribs 2021 to snap the filter element 201 inwardly for securement. A person skilled in the art can design a method for securing the filter element 201 based on their professional knowledge, and this will not be elaborated upon here.

[0059] Through the provision of positioning ribs 2021, the filter element 201 is divided into multiple filter elements 2011. For example, in this embodiment, the filter element 201 is divided into three filter elements 2011, each of which is fan-shaped. Of course, in other embodiments, the filter elements 2011 can have other shapes, such as pie, ring, or circle. By designing multiple filter elements 2011, different filter materials can be loaded onto the module, achieving all-in-one filtration of multiple odors. A detailed description of the filter element 201 is as follows.

[0060] In this embodiment, the filter element 201 achieves its air filtration or adsorption effect by adding (e.g., coating) a precious metal catalyst to a substrate. Precious metals such as platinum, palladium, rhodium, and ruthenium can be used, either singly or in combination. Substrates such as corrugated paper, zeolite, silica, alumina, or ceramic paper can be used, either singly or in combination. Those skilled in the art can manufacture various filter materials based on their expertise. However, the manufacture of these materials is not a primary aspect of this application and will not be elaborated upon here.

[0061] Examples of odorous substances include ammonia, hydrogen sulfide, methyl mercaptan, and acetic acid. Volatile organic compounds include hydrocarbon solvents such as toluene, xylene, and isopropyl alcohol, and halogen compounds such as dichloromethane and trichloroethylene. Different odorous substances require different catalysts for elimination. Therefore, the multiple filter elements 2011 of this embodiment can be combined to form multiple different filter materials, effectively filtering multiple odors simultaneously, improving filtration efficiency and gas filtration range.

[0062] The filter element 201 of this embodiment is made of corrugated paper and has multiple holes to facilitate air flow and water flushing (flushing will be described below). Of course, other hole structures such as honeycomb holes can also be used.

[0063] Please continue to refer to Figure 4 , the driving rotation of the turntable 202 is described below.

[0064] On the outside of the turntable 202, there are a motor 203 and a driving wheel 50. The motor 203 is connected to a power supply device to start and rotate the driving wheel 50 connected thereto. The driving wheel 50 is provided with a driving tooth portion 501. At the same time, the circumference of the turntable 202 is also provided with a circle of driven teeth 2031. Therefore, the driving teeth 501 can drive the driven teeth 2031 by engaging with them, thereby driving the rotation of the entire turntable 202, thereby realizing the rotation of the filter element 201. Figure 3It can be seen from the air inlet 30 that when air continuously enters the interior of the odor filtering device from the air inlet 30, the rotating filter element 201 (filter element 2011) can continuously contact the incoming air. In other words, the incoming air can directly and fully contact each filter element 2011. As mentioned above, different filter elements 2011 can achieve targeted and effective filtration of different odors.

[0065] The motor 203 itself has a certain volume. The motor 203 and the driving wheel 50 are arranged on the outside of the turntable 202, specifically on the outside of the periphery of the turntable 202. This can effectively reduce the thickness of the air odor filter module 1 in the axial direction of the turntable 202, that is, achieve the flattening of the module. This makes it easier to install the module on various devices and reduces space occupation. In addition, since the air odor filter module 1 is also provided with a flushing unit 60 or a drying unit (described below), arranging the motor 203 on the outside of the turntable 202 can prevent the flushing water or the high-temperature drying unit from being away from the motor 203, thereby preventing the motor 203 from being damaged. Of course, without considering the flattening design or the prevention of damage to the motor 203, the motor 203 can be directly connected to the shaft of the turntable 202 to achieve the rotation of the turntable 202.

[0066] The above is the description of the filter unit 20. Figure 1 and Figure 5 , the air supply unit 80 is described in detail. Figure 5 It is a schematic diagram of the back structure of the above embodiment with the bottom plate 101 and part of the filter element 2011 hidden.

[0067] The air supply unit 80 is used to drive the flow of air, specifically, to drive the air from the outside of the air odor filter module 1 into the inside, and then output it to the outside after filtering. Figure 5 As shown, the air supply unit 80 includes a volute 802, a centrifugal fan 801, and an air outlet 4040. The small centrifugal fan 801 is installed in the volute 802, and the volute 802 discharges air corresponding to the air outlet 4040. The air outlet 4040 is located on the other side of the air inlet 30 relative to the filter element 201. In other words, the air outlet 4040 is located on one side of the surface where the filter element 201 is located, and the air inlet 30 is located on the other side of the surface where the filter element 201 is located. This allows air to be filtered by the filter element 201 before it can be discharged, ensuring the air odor filtering effect. In this embodiment, since the air supply unit 80 has a certain thickness, a portion of it protrudes from the cover 70.

[0068] Next, combine Figure 1 and Figure 6 , the flushing unit 60 is described in detail. Figure 6 The front structural diagram of the above embodiment is shown in the state where the cover 70 is removed.

[0069] The air odor filtering module 1 is further provided with a flushing unit 60 , which includes a water inlet channel 601 , a flushing channel 603 connected to the water inlet channel 601 , and a drain outlet 602 .

[0070] The water inlet channel 601 obtains water supply by connecting to a water source device, and the water is used to flush the filter element 201. The water inlet channel 601 includes a water outlet end 6011, and the water outlet end 6011 reaches the position where the filter element 201 is located so as to directly flush the filter element 201. In this embodiment, the water outlet end 6011 is connected to the flushing channel 603. The flushing channel 603 has a groove-like structure and is used to transport water to the corresponding position, that is, to disperse the flushing water to more filter element 201 positions to achieve a better flushing effect. In addition, a plurality of flushing holes 6034 are provided along the groove on the flushing channel 603. The flushing holes 6034 face the filter element 201. The tiny flushing holes 6034 can increase the pressure of the water spray, thereby enhancing the flushing force and effect.

[0071] Specifically, the flushing channel 603 includes a first flushing channel 6031, a second flushing channel 6032, and a third flushing channel 6033, which are connected in sequence. The first and third flushing channels 6031 and 6033 extend circumferentially around the chassis 101 (rotating disk 202), while the second flushing channel 6032 extends radially around the chassis 101 (rotating disk 202). These extensions in different directions ensure more thorough flushing during the rotation of the filter element 201. It should be noted that the design of the flushing channel 603 is not particularly limited; designers can design multiple or multiple flushing channels 603 in different directions as needed to achieve a better flushing effect.

[0072] Please continue to refer to Figure 6 , the lower side of the housing 10 facing the direction of gravity (ie Figure 6 A drain port 602 is provided (directly below the housing shown in the figure) for draining the flushed liquid. Due to gravity, the flushed water naturally flows in the direction of gravity and is ultimately discharged out of the air odor filtration module 1 through drain port 602. Preferably, drain port 602 should be connected to a drainage pipe (not shown) to drain the liquid to a suitable location.

[0073] By flushing with water, odorous substances attached to the filter element 201 can be carried to the outside of the air odor filter module 1 by the water. In other words, the filter element 201 that has adsorbed odorous components can release the odorous components after being flushed, so that the filtering function can continue. That is, the filtering (adsorption) function of the filter element 201 can be regenerated, thereby extending the service life of the air odor filter module 1.

[0074] In this embodiment, the water inlet channel 601 is provided at the bottom, but in actual design, the water inlet channel 601 can be provided in any direction without any particular preferred limitation.

[0075] In addition, the shell 10 is also provided with an opening portion 102, which corresponds to the position of the filter element 201. A drying unit (not shown) can be set in the opening portion 102 to dry the filter element 201. This can speed up the drying of the filter element 201 after washing. Compared with the wet filter element 201, the dry filter element 201 can restore the original filtering function, thereby accelerating the recovery of the filtering efficiency.

[0076] The cover 70 covers the opening 102 and the flushing channel 603, and the cover 70 forms a part of the wall of the flushing channel 603, thereby closing the flushing channel 603 and preventing the water to be flushed from leaking. At the same time, the cover can be installed detachably, which is convenient for the inspection of the module.

[0077] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An air odor filtering module, characterized in that: include: a housing, wherein at least one side of the housing is configured as a flat chassis; A filter unit is rotatably disposed inside the housing. The filter unit includes a filter element; an air inlet, the air inlet being opened on the chassis; air outlet; The air inlet and the air outlet are respectively located on two sides relative to the filter unit.

2. The air odor filtering module according to claim 1, characterized in that: The filtering unit further comprises: a turntable, the turntable carrying the filter element; A motor is connected to the turntable to drive the turntable to rotate.

3. The air odor filtering module according to claim 2, characterized in that: The turntable and the base are circular, and the rotation axis of the turntable and the center of the base are located on the same axis.

4. The air odor filtering module according to claim 3, characterized in that: The rotating disk is provided with positioning ribs along the radial direction, and the filter element is fixed on the rotating disk through the positioning ribs, and The filter element is configured to be in a shape surrounded by the coaxial radial extension of the rotating disk.

5. The air odor filtering module according to claim 4, characterized in that: The filter element includes a plurality of filter segments, and the plurality of filter segments are respectively arranged in a sector shape or a part of a sector shape having the same axis as the base plate.

6. The air odor filtering module according to claim 3, characterized in that: Also includes: a driving wheel and a driven gear portion; The driving wheel is connected to the motor and is provided with a driving gear. The driven teeth are provided on the rotating disk; The driving tooth portion drives the driven tooth portion to move.

7. The air odor filtering module according to claim 6, characterized in that: The driven teeth are arranged on the periphery of the rotating disk. The driving wheel and the motor are arranged outside the periphery of the turntable.

8. The air odor filtering module according to claim 4, characterized in that: Also includes: A flushing unit, comprising a water inlet channel and a water outlet, The water outlet of the water inlet channel reaches the location of the filter unit. The drain port is formed in the shell and faces downward in the direction of gravity.

9. The air odor filtering module according to claim 8, characterized in that: The flushing unit further comprises: a flushing channel, The flushing channel is located in the housing and connected to the water inlet channel; The flushing channel at least includes a first flushing channel and a second flushing channel connected to each other. One end of the first flushing channel is connected to the water outlet end and is extended along a first direction, and the second flushing channel is extended along a second direction.

10. The air odor filtering module according to claim 9, characterized in that: The flushing channel further includes: a third flushing channel, The third flushing channel is connected to the second flushing channel and is extended along the first direction; The first direction is the same as the circumferential direction of the chassis, and the second direction is the same as the radial direction of the chassis.

11. The air odor filtering module according to claim 9, characterized in that: The flushing channel is in the shape of a groove opened in the shell, and is provided with a plurality of flushing holes facing the filter element.

12. The air odor filtering module according to claim 11, characterized in that: The housing further includes an opening portion, the opening portion corresponds to the filter element, and the opening portion is provided with a drying unit.

13. The air odor filtering module according to claim 12, characterized in that: Also includes: Cover, The cover covers the flushing channel and the opening.

14. The air odor filtering module according to claim 13, characterized in that: Also includes: an air supply unit, configured to connect an air passage inside and outside the housing; The air supply unit includes: the air outlet, a centrifugal fan and a volute The centrifugal fan is disposed in the volute, and the volute is connected to the air outlet.

15. A dishwasher, characterized in that: comprising the air odor filtering module according to any one of claims 1 to 14, The air inlet of the air odor filtering module is installed correspondingly to the ventilation port of the dishwasher.

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