CN214791713U

CN214791713U - Air purifier

Info

Publication number: CN214791713U
Application number: CN202120543873.2U
Authority: CN
Inventors: 杨建�; 王颖文; 姚亮
Original assignee: Loudi Tiandeyi Environmental Technology Co ltd
Current assignee: Shenzhen Tiandeyi Environment Technology Co ltd
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2021-11-19
Anticipated expiration: 2031-03-16

Abstract

The utility model discloses an air purifier, which comprises a shell, a fan, a filtering component and a disinfecting component, wherein the shell is provided with an air inlet and an air outlet, and an air channel communicated with the air inlet and the air outlet is formed in the shell; the fan is arranged in the air duct and used for introducing air flow from the air inlet and blowing the air flow out from the air outlet; the filtering component is arranged in the air duct and is used for filtering the air flow entering the air duct; the disinfection component comprises an atomization groove and an atomization unit, the atomization groove is connected with the air duct, and the atomization unit is arranged in the atomization groove. The technical scheme of the utility model can make air purifier have sterile function.

Description

Air purifier

Technical Field

The utility model relates to an air purification technical field especially relates to an air purifier.

Background

With the aggravation of air pollution conditions, the air purifier becomes a household appliance which is more and more commonly used in daily life. However, the existing air purifier mainly removes dust and filters air through a filter screen and does not have a disinfection function.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide an air purifier, which aims to ensure that the air purifier has the disinfection function.

In order to achieve the above object, the utility model provides an air purifier includes:

the air conditioner comprises a shell, a fan and a controller, wherein the shell is provided with an air inlet and an air outlet, and an air channel communicated with the air inlet and the air outlet is formed in the shell;

the fan is arranged in the air duct and used for introducing airflow from the air inlet and blowing the airflow out from the air outlet;

the filtering component is arranged in the air duct and is used for filtering the airflow entering the air duct; and

the disinfection subassembly, the disinfection subassembly includes atomizing groove and atomizing unit, the atomizing groove intercommunication the wind channel, the atomizing unit is located in the atomizing inslot.

Optionally, the sterilization assembly further comprises an electrolysis unit.

Optionally, the air purifier further comprises a liquid supply assembly, the liquid supply assembly comprises a liquid storage tank and a liquid feeding pipe, one end of the liquid feeding pipe is communicated with the liquid storage tank, and the other end of the liquid feeding pipe is communicated with the atomization tank.

Optionally, the liquid supply assembly further comprises a water pump, the water pump is arranged in the liquid storage tank, and one end, communicated with the liquid storage tank, of the liquid feeding pipe extends into the liquid storage tank and is communicated with the water pump.

Optionally, the liquid supply assembly further comprises an overflow pipe, one end of the overflow pipe is communicated with the liquid storage tank, the other end of the overflow pipe is communicated with the atomization tank, and a pipe opening of the overflow pipe communicated with the atomization tank is higher than the atomization unit.

Optionally, one end of the overflow pipe, which is located at the atomization groove, penetrates through the bottom wall of the atomization groove and extends into the atomization groove, and the pipe opening is arranged in a direction away from the bottom wall of the atomization groove.

Optionally, the air purifier further comprises a circuit board, and the water pump and the atomizing unit are electrically connected to the circuit board.

Optionally, the disinfecting assembly further comprises a liquid level controller, and the liquid level controller is arranged in the atomizing groove and electrically connected to the circuit board.

Optionally, an avoiding opening communicated to the outside is formed in the position, facing the liquid storage tank, of the inner side wall of the shell, and the air purifier further comprises a door body, wherein the door body can be arranged at the avoiding opening in an opening and closing mode so as to open or close the avoiding opening.

Optionally, the filtering component is including just imitating filter screen, high-efficient filter screen and active carbon filter screen, just imitate the filter screen lid and locate the air inlet, high-efficient filter screen is located just imitate the filter screen and deviate from one side of air inlet, the active carbon filter screen is located high-efficient filter screen deviates from just imitate one side of filter screen.

The technical scheme of the utility model, when air purifier moves, the air in the environment is inhaled the back by the air inlet by the fan, at first through the wind channel that is equipped with filtering component to impurity such as containing fungus particulate matter, dust in the de-aeration. Meanwhile, the atomizing unit atomizes the disinfection liquid in the atomizing tank, the atomized disinfection liquid enters the air channel to be mixed with the air subjected to impurity removal, and the mixed disinfection liquid is diffused to the indoor space from the air outlet under the driving of the fan power so as to kill or clear microorganisms such as bacteria in the space, and the air purifier has a disinfecting function.

And, because the fan is always drawing the air in the environment into the air inlet, the previously sprayed part of the sterilizing liquid will flow into the filter assembly along with the air again from the air inlet, and at this time, the sterilizing liquid will be filtered, so as to realize the sterilization and disinfection of the filter assembly.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of an air purifier of the present invention;

fig. 2 is a schematic view of an internal structure of the air purifier of fig. 1.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Shell body	23	Atomizing unit
11	Display panel	25	Electrolysis unit
				12	Circuit board	30	Filter assembly
13	Air inlet	31	Primary filter screen
				14	Air duct	33	High-efficiency filter screen
15	Mixing zone	35	Activated carbon filter screen
				16	Air outlet	40	Liquid supply assembly
17	Door body	41	Liquid storage tank
				18	Fan blower	43	Liquid feeding pipe
20	Disinfection assembly	45	Water pump
				21	Atomization tank	47	Overflow pipe

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may be provided with at least one of the feature explicitly or implicitly. In addition, the expression "and/or" as used throughout means that there are three schemes in parallel, in the case of "a and/or B", there are either schemes a, B or both schemes a and B are satisfied. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides an air purifier, referring to fig. 1, the air purifier is provided with a columnar shell 10; optionally, this casing 10 can be cylinder or prism, in the embodiment of the utility model provides an, select for use the casing 10 of quadrangular, be equipped with air inlet 13 and gas outlet 16 on casing 10, form the wind channel 14 that communicates air inlet 13 and gas outlet 16 in casing 10, be equipped with fan 18 in wind channel 14. Air is drawn into the air path 14 within the air cleaner through the air inlet 13 by the fan 18, and the fan 18 expels air from the air outlet 16.

Specifically, the housing 10 has top and bottom walls disposed opposite to each other, and side walls connecting the top and bottom walls. The utility model discloses in the air purifier embodiment, as shown in fig. 1, air inlet 13 sets up on the lateral wall of casing 10, and air inlet 13 on the lateral wall has great intake area, makes things convenient for air purifier to inhale with the air in the environment.

Alternatively, the air inlets 13 may be circumferentially arranged along the circumferential direction of the side wall, and when the casing 10 is a prism, the air inlets 13 may be arranged on a plurality of faces of the side wall, or as shown in this embodiment, the casing 10 is specifically a quadrangular prism, and the air inlets 13 are arranged on only one face of the side wall. An air outlet 16 is provided in the top wall of the housing 10 to facilitate the diffusion of the purified air into the surrounding environment. Optionally, the air inlet 13 and the air outlet 16 are covered with mesh plates.

Specifically, as shown in fig. 2, the air duct 14 includes a transverse air duct 14 extending along the axis of the air inlet 13 and away from the air inlet 13, and a longitudinal air duct 14 extending along the axis of the air outlet 16 and away from the air outlet 16, where one end of the transverse air duct 14 facing away from the air inlet 13 and one end of the longitudinal air duct 14 facing away from the air outlet 16 are communicated with each other; wherein the fan 18 is disposed within the air duct 14.

Optionally, the fan 18 is a transverse axial flow fan 18, the axial flow fan 18 may be disposed at the bottom of the longitudinal air duct 14, at this time, the upper side of the fan 18 faces the air outlet 16, and the fan 18 continuously conveys air to the air outlet 16, so that the air in the longitudinal air duct 14 flows to the air outlet 16 and is discharged, and because the air in the longitudinal air duct 14 flows, the pressure inside the longitudinal air duct 14 is reduced, so that the air in the transverse air duct 14 flows to the longitudinal air duct 14, and simultaneously drives the air in the environment to flow into the transverse air duct 14 through the air inlet 13, so as to realize circulation of the air; and in this way the air does not flow past the fan 18 during the flow in the flow channel. Or, the axial flow fan 18 is transversely disposed between the two ends of the longitudinal air duct 14, the input end of the fan 18 faces upward, the output end of the fan 18 faces upward, and the output end of the fan 18 is higher than the highest point of the transverse air duct 14; meanwhile, the outer contour of the fan 18 is matched with the inner contour of the longitudinal air duct 14 and connected with each other in a threaded connection, a welding connection or a support additionally arranged between the two.

In the embodiment of the air purifier of the utility model, the fan 18 is a centrifugal fan 18, the centrifugal fan 18 is arranged at the position where the longitudinal air duct 14 is communicated with the transverse air duct 14, the input end of the centrifugal fan 18 is over against the air inlet 13, and the output end of the centrifugal fan 18 is over against the air outlet 16; when the fan 18 is turned on, air enters the input end of the fan 18 through the transverse air duct 14 from the air inlet 13, and is exhausted from the air outlet through the longitudinal air duct 14 from the output end of the fan 18.

Referring to fig. 2, the air purifier further includes a filter assembly 30, the filter assembly 30 is disposed in the transverse air duct 14, and the filter assembly 30 covers the air inlet 13 at a side of the air inlet 13 facing the air duct 14, so that the air entering from the air inlet 13 is filtered by the filter assembly 30 to remove one or more contaminants therein, and then is discharged from the air outlet 16. Optionally, the outer profile of the filter assembly 30 and the inner profile of the transverse air chute 14 are matched so that it is more firmly retained within the transverse air chute 14.

The utility model also comprises a disinfection component 20, the disinfection component 20 comprises an atomization groove 21 and an atomization unit 23; wherein, the atomization groove 21 is communicated with the air duct 14; the atomizing unit 23 is disposed in the atomizing tank 21 and fixed to a bottom wall of the atomizing tank 21. The sterilizing liquid can be added into the atomizing groove 21 and atomized by the atomizing unit 23, and the air flowing in the flow channel can bring the sterilizing liquid atomized in the atomizing groove 21 into the flow channel, and the sterilizing liquid is mixed with the air and then discharged from the air purifier through the air outlet; under the power provided by the fan 18, the atomized disinfectant can be sprayed to the surrounding environment and disinfect the environment.

Specifically, the atomization groove 21 is communicated with the longitudinal air duct 14, and the communication position is located above the fan 18, so that the disinfection liquid is ensured not to flow through the main components such as the fan 18 all the time, and the defect of damage caused by corrosion to the components is avoided.

Referring to fig. 2, in the present embodiment, a mixing region 15 is further provided in the air cleaner; wherein, the mixing area 15 is arranged at one side of the air outlet 16 facing the air duct 14 and communicated with the air outlet 16; the side of the mixing zone 15 facing away from the air outlet 16 communicates with the longitudinal air duct 14 and the atomization groove 21, respectively.

Specifically, the upper end of the mixing area 15 is covered by a mesh plate of the air outlet, and the upper end of the longitudinal air duct 14 extends to the lower end of the mixing area 15 towards the air outlet 16 and is communicated with the air outlet; the atomization tank 21 is disposed below the mixing zone 15, and the top of the atomization tank 21 has an opening to communicate with the mixing zone 15.

Optionally, the disinfecting liquid in the atomizing tank 21 may be a low-concentration silver hydrogen peroxide disinfectant, or may be slightly acidic hypochlorous acid water used in this embodiment. Hypochlorous acid can not only destroy the cell wall of the microorganism, but also has small molecules and no electric charge. Hypochlorous acid has a higher sterilizing power than hypochlorite ions because the surfaces of bacteria are generally negatively charged, and molecules having the same charge repel each other like a magnet, and the negatively charged hypochlorite ions repel each other from the surfaces of the bacteria, so the hypochlorite ions have a poor ability to kill the bacteria. Hypochlorous acid easily invades into the body of the microorganism bacteria, and is oxidized with protein or destroys phosphate dehydrogenase of the microorganism bacteria, so that sugar metabolism is disordered and the microorganism bacteria die. Hypochlorous acid can decompose nascent oxygen, has strong oxidizing property, can be oxidized with bacteria components including virus checking substances to kill microorganisms, and also has deodorizing and formaldehyde removing effects. And the low-concentration subacid hypochlorous acid water is nontoxic and harmless, has no irritation to eyes, skin and respiratory tract, and can not cause damage even if being taken by accident.

Furthermore, the utility model discloses technical scheme's disinfection subassembly 20 still includes electrolysis unit 25, and in the electrolysis unit 25 was located atomizing groove 21, can add the chlorine salt solution in atomizing groove 21 to make chlorine salt solution submergence electrolysis unit 25, for electrolysis unit 25 circular telegram again, with chlorine salt solution electrolysis generation one kind have the disinfection effect disinfection liquid-hypochlorous acid.

The utility model discloses technical scheme's air purifier, when air purifier moves, the air in the environment is inhaled the back by air inlet 13 by fan 18, at first through the wind channel 14 that is equipped with filtering component 30 to impurity such as containing fungus particulate matter, dust in the air is got rid of. Meanwhile, the atomizing unit 23 atomizes the sterilizing liquid in the atomizing groove 21, the atomized sterilizing liquid enters the air duct 14 to be mixed with the air after impurity removal, and the mixed sterilizing liquid is diffused to the indoor space from the air outlet 16 under the driving of the power of the fan 18 so as to kill or eliminate microorganisms such as bacteria in the space, and thus the air purifier has a sterilizing function.

Also, since the fan 18 is always drawing the air in the environment into the air inlet 13, the previously sprayed part of the sterilizing fluid will flow into the filter assembly 30 again through the air inlet 13 with the air, and at this time the sterilizing fluid will be filtered to sterilize and disinfect the filter assembly 30.

Alternatively, the atomization unit 23 may be a compression type atomization unit 23, or may be an ultrasonic atomization unit 23.

The atomizing unit 23 used in this embodiment is an ultrasonic atomizing unit 23, and the ultrasonic atomizing unit 23 is fixedly connected to the bottom wall of the atomizing groove 21, and may be specifically bonded, cemented, or welded. The ultrasonic atomization unit 23 breaks up molecular bonds among molecules of the disinfection liquid by utilizing electronic high-frequency oscillation to generate natural and elegant fog, does not need heating or adding any chemical reagent, is more energy-saving compared with the traditional atomization mode, has oscillation frequency exceeding the hearing range of a human body, and is harmless to the human body and animals.

Referring to fig. 2, the air purifier of the present invention further includes a liquid supply assembly 40, wherein the liquid supply assembly 40 includes a liquid storage tank 41 and a liquid supply pipe 43. Specifically, the liquid storage tank 41 is disposed below the atomization tank 21, and an opening communicating with the inside of the housing 10 is disposed on a tank wall of the liquid storage tank 41, wherein one end of the upper liquid pipe 43 is communicated with the liquid storage tank 41, and the other end extends out of the liquid storage tank 41 from the opening on the tank wall and communicates with the atomization tank 21. A sufficient amount of the sterilizing fluid may be placed in the reservoir 41 and the sterilizing fluid in the reservoir 41 may be fed from the upper fluid tube 43 into the atomizing tank 21 to replenish the sterilizing fluid that is being consumed.

The liquid supply assembly 40 also comprises a water pump 45, the water pump 45 is arranged in the liquid storage tank 41 and is connected to the wall of the liquid storage tank 41, so that the water pump 45 is prevented from shaking under the flowing of the disinfection liquid; alternatively, the connection mode may be welding, gluing, screwing or fixing by fixing a fixing bracket on the bottom wall of the reservoir 41. And one end of the upper liquid pipe 43, which is communicated with the liquid storage tank 41, extends into the liquid storage tank 41 and is connected with the water pump 45, so that the disinfection liquid in the liquid storage tank 41 is pumped into the atomization tank 21.

Further, the upper liquid pipe 43 is a hose, and the length of the upper liquid pipe 43 is greater than the distance from the water pump 45 to the atomization tank 21, so that the water pump 45 and the liquid storage tank 41 can be conveniently detached and installed.

The liquid supply assembly 40 further comprises an overflow pipe 47, one end of the overflow pipe 47 is communicated with the liquid storage tank 41, the other end of the overflow pipe 47 is communicated with the atomization tank 21, so that redundant liquid in the atomization tank 21 flows back to the liquid storage tank 41 from the overflow pipe 47, and a pipe orifice of one end of the overflow pipe 47, which is communicated with the atomization tank 21, is higher than the atomization unit 23; specifically, an opening of the reservoir 41 communicating with the interior of the housing 10 is formed at the top of the reservoir 41, and a nozzle of the overflow pipe 47 communicating with one end of the reservoir 41 communicates with the reservoir 41 through the opening.

Optionally, a through hole is formed in the side wall of the atomizing groove 21, the height of the through hole is higher than that of the atomizing unit 23, a pipe orifice of one end of the overflow pipe 47, which is communicated with the atomizing groove 21, penetrates through the through hole from one end of the side wall of the atomizing groove 21, which is far away from the atomizing groove 21, to the atomizing groove 21, and the through hole is in airtight connection with the outer contour of the overflow pipe 47. Alternatively, as in the present embodiment shown in fig. 2, an end of the overflow pipe 47 facing away from the reservoir 41 penetrates from the bottom wall of the atomizing tank 21 and extends upward to a position higher than the atomizing unit 23.

The embodiment of the utility model provides an air purifier, set up one on its casing 10 and dodge the mouth, should dodge the mouth and run through the lateral wall of casing 10 to communicate reservoir 41, can be by should dodge mouthful from outside to adding disinfectant in reservoir 41.

Further, an openable door body 17 is arranged at the avoidance port to open or close the avoidance port, and when the door body 17 is opened, the disinfection liquid can be added into the liquid storage tank 41 from the avoidance port; when the door 17 is closed, volatilization or splashing of the sterilizing liquid can be prevented.

Optionally, the door body 17 is rotatably connected with the outer side wall communicated with the avoidance port; specifically, the outer side walls of the door body 17 are provided with shaft holes, a rotating shaft penetrates through the shaft holes, the door body 17 can rotate around the rotating shaft relative to the outer side walls to form an included angle, and when the included angle is 0 degree, the door body 17 covers the avoiding opening to enable the avoiding opening to be in a closed state; when the included angle is larger than 0 degree, the avoiding opening is in an opening state. Or, the two opposite sides of the avoidance opening on the outer side wall are provided with guide grooves, the two opposite sides of the door body 17 are provided with bulges matched with the guide rails, and the bulges can be clamped and slide back and forth in the guide grooves so as to enable the door body 17 to be connected with the outer side wall in a sliding way; the door 17 can slide to completely cover the escape opening to close it.

Referring to fig. 2, the present embodiment further includes a circuit board 12 and a display panel 11, the circuit board 12 is disposed inside the casing 10, and the electrolysis unit 25, the water pump 45 and the atomization unit 23 are all electrically connected to the circuit board 12; the outer side wall of the casing 10 is recessed to form a mounting position, the display panel 11 is clamped in the mounting position and electrically connected with the circuit board 12, and the front side of the display panel 11 is exposed out of the outer side wall to display the working conditions of all components in the air purifier.

Specifically, the circuit board 12 may be compiled so that the electrolysis amount of the electrolysis unit 25, the atomization amount of the atomization unit 23, and the pumping amount of the water pump 45 are balanced; the on-off of each circuit can be controlled by the display panel 11, so that the air purifier of the utility model has two working states, wherein the first working state is an air purification functional state, and in the state, the circuit board 12 singly energizes the fan 18 and does not energize the electrolysis unit 25, the water pump 45 and the atomization unit 23, so that the air purifier only uses the purification function; the second working state is a disinfection and sterilization state, and the circuit board 12 is powered on for all electronic components in the second working state, so that the second working state has the functions of air purification and disinfection and sterilization.

Furthermore, a liquid level controller can be added in the atomization tank 21 and electrically connected to the circuit board 12 to sense the liquid level of the disinfection liquid in the atomization tank 21; specifically, the level controller may be compiled by the circuit board 12 to sense the level of the chlorine salt solution in the atomization tank 21. When the liquid level is higher than the opening of the overflow pipe 47, the redundant chlorine salt solution flows into the liquid storage tank 41 through the overflow pipe 47; when the liquid level is lower than the opening of the overflow pipe 47, the liquid level controller feeds back the information to the circuit board 12, and the circuit board 12 controls the water pump 45 to pump the chlorine salt solution in the liquid storage tank 41 into the atomization tank 21, so that the liquid level of the chlorine salt solution in the atomization tank 21 is kept in dynamic balance.

Optionally, the filtering component 30 may be a single filter screen, such as a high-efficiency filter screen 33 or an activated carbon filter screen 35, or may be an anion system, and may be a photocatalyst air purification carbon, which adsorbs air harmful to human body and planktonic bacteria in the air with strong adsorption and decomposition forces, and makes the adsorbed bacteria, mold, etc. die in an environment without suitable living; or, the composite filtering component 30 is adopted, namely, a plurality of purification technologies are adopted at the same time; as shown in fig. 2, in the embodiment of the present invention, the filtering component 30 includes a composite type filtering net, i.e. a combination of multiple filtering nets.

Specifically, the filtering assembly 30 includes a primary filter screen 31, a high-efficiency filter screen 33 and an activated carbon filter screen 35; wherein primary filter screen 31 covers the one side that faces wind channel 14 at air inlet 13, and high-efficient filter screen 33 covers the one side that deviates from air inlet 13 at primary filter screen 31 simultaneously, and activated carbon filter screen 35 covers the one side that deviates from primary filter screen 31 at high-efficient filter screen 33. Under the action of the fan 18, the air entering through the air inlet 13 can be mixed with the disinfection liquid after being sequentially filtered by the primary filter screen 31, the high-efficiency filter screen 33 and the activated carbon filter screen 35.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are all set in the patent protection scope of the present invention.

Claims

1. An air purifier, comprising:

2. The air purifier of claim 1, wherein the disinfecting assembly further comprises an electrolysis cell.

3. The air purifier of claim 1, further comprising a liquid supply assembly comprising a liquid reservoir and a liquid supply tube, wherein one end of the liquid supply tube is in communication with the liquid reservoir and the other end of the liquid supply tube is in communication with the atomization tank.

4. The air purifier of claim 3 wherein the liquid supply assembly further comprises a water pump disposed in the reservoir, the upper liquid pipe extending into the reservoir at an end thereof in communication with the reservoir and in communication with the water pump.

5. The air purifier of claim 4, wherein the liquid supply assembly further comprises an overflow pipe, one end of the overflow pipe is communicated with the liquid storage tank, the other end of the overflow pipe is communicated with the atomization tank, and a pipe orifice of the overflow pipe, which is communicated with the atomization tank, is arranged higher than the atomization unit.

6. The air cleaner of claim 5, wherein the overflow pipe is positioned at one end of the atomization tank, penetrates through the bottom wall of the atomization tank, and extends into the atomization tank, and the nozzle is arranged in a direction away from the bottom wall of the atomization tank.

7. The air purifier of claim 4, further comprising a circuit board, wherein the water pump and the atomizing unit are both electrically connected to the circuit board.

8. The air purifier of claim 7 wherein the sterilizing assembly further comprises a liquid level controller disposed within the atomization tank and electrically connected to the circuit board.

9. The air purifier of claim 3, wherein an avoidance port communicated with the outside is formed in a position, facing the liquid storage tank, of the inner side wall of the shell, and the air purifier further comprises a door body, wherein the door body is openably and closably arranged at the avoidance port to open or close the avoidance port.

10. The air cleaner of any one of claims 1 to 9, wherein the filter assembly includes a primary filter, a high efficiency filter, and an activated carbon filter, the primary filter is disposed at the air inlet, the high efficiency filter is disposed at a side of the primary filter facing away from the air inlet, and the activated carbon filter is disposed at a side of the high efficiency filter facing away from the primary filter.