CN213955552U

CN213955552U - Air sterilizer

Info

Publication number: CN213955552U
Application number: CN202022845464.6U
Authority: CN
Inventors: 王波; 马列; 邓国基; 沐原; 郑辉; 周何杰
Original assignee: GD Midea Air Conditioning Equipment Co Ltd; Foshan Shunde Midea Electric Science and Technology Co Ltd
Current assignee: GD Midea Air Conditioning Equipment Co Ltd; Foshan Shunde Midea Electric Science and Technology Co Ltd
Priority date: 2020-12-01
Filing date: 2020-12-01
Publication date: 2021-08-13
Anticipated expiration: 2030-12-01

Abstract

The utility model provides an air sterilizer, which comprises a shell, a plurality of fans and a plurality of sterilization modules. The casing is equipped with a plurality of air intakes and a plurality of air outlet, and a plurality of air intakes communicate in order to form a plurality of wind channels with a plurality of air outlet one-to-ones, and a plurality of fans one-to-ones are located in a plurality of wind channels, and a plurality of disinfection module one-to-ones are located in a plurality of wind channels. Wherein, at least one air outlet is arranged on the top wall of the shell, and at least one air outlet is arranged on the peripheral side wall of the shell. The technical proposal of the utility model adopts a plurality of fans to one-to-one correspond to a plurality of air outlets for air outlet, thereby obviously increasing the air supply volume and the air supply range; and, make air sterilizing machine carry out the air-out with the air-out direction of difference, effectively improve air supply angle and further increase air supply scope to can realize the quick diffusion of room air current, and then be favorable to promoting the disinfection effect of room air.

Description

Air sterilizer

Technical Field

The utility model relates to an air treatment technical field, in particular to air sterilizing machine.

Background

Air disinfectors, as the name implies, refer to machines that are capable of disinfecting and sterilizing air. Besides sterilization and disinfection, some models can remove organic pollution gases such as formaldehyde, phenol and the like in indoor air, and can kill or filter allergens such as pollen and the like. However, in the related art, the air sterilizer has a limited air supply range and air supply angle, a slow air diffusion rate, and a poor indoor air sterilization effect.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide an air sterilizer, which aims to enlarge the air supply range and adjust the air supply angle so as to be beneficial to the rapid diffusion of air flow in the space.

In order to achieve the above object, the present invention provides an air sterilizer, which comprises:

the air conditioner comprises a shell, a fan and a control device, wherein the shell is provided with a plurality of air inlets and a plurality of air outlets, and the plurality of air inlets and the plurality of air outlets are communicated in a one-to-one correspondence manner to form a plurality of air channels;

the fans are arranged in the air channels in a one-to-one correspondence manner;

the plurality of disinfection modules are arranged in the plurality of air channels in a one-to-one correspondence manner; wherein the content of the first and second substances,

at least one air outlet is arranged on the top wall of the shell, and at least one air outlet is arranged on the peripheral side wall of the shell.

Optionally, the air inlet includes a first air inlet and a second air inlet, the air outlet includes a first air outlet disposed on the top wall of the housing and a second air outlet disposed on the peripheral side wall of the housing, a first air duct is formed between the first air inlet and the first air outlet, and a second air duct is formed between the second air inlet and the second air outlet;

the fan comprises a first fan and a second fan which are parallel up and down, the first fan is arranged in the first air duct, and the second fan is arranged in the second air duct; the disinfection module comprises a first disinfection module and a second disinfection module, the first disinfection module is arranged in the first air channel, and the second disinfection module is arranged in the second air channel.

Optionally, the first fan and the second fan are both centrifugal fans.

Optionally, the first air inlet is disposed on a peripheral side wall of the housing, and the first air inlet is located above the second air outlet.

Optionally, the first air inlet is annularly arranged on a peripheral side wall of the housing, the first disinfection module is annularly arranged on an inner peripheral side of the housing, and the first disinfection module and the first air inlet are arranged correspondingly.

Optionally, the air sterilizer further comprises a first purification module, wherein the first purification module is annularly arranged and annularly arranged on the outer peripheral side of the first sterilization module; or the first purification module comprises a plurality of sub-purification modules, the first air inlet comprises a plurality of sub-air inlets which are respectively arranged on the peripheral side wall of the shell, and the plurality of sub-purification modules are arranged at the positions of the sub-air inlets in a one-to-one correspondence manner.

Optionally, the sub-purification module is a primary filter screen, or a HEPA screen, or a catalytic screen, or an IFD purification module.

Optionally, the second air inlet is disposed on a peripheral side wall of the housing, and the second air outlet is located above the second air inlet; the second disinfection module is located between the second air inlet and the second air outlet, and the air passing surface of the second disinfection module is arranged from bottom to top.

Optionally, the second air outlet is annularly arranged on the periphery side of the second fan.

Optionally, a partition plate is arranged between the first fan and the second fan to vertically partition the first air duct from the second air duct, and the lower surface of the partition plate is inclined downward from the central portion to the outer ring side.

Optionally, the angle between the lower surface of the partition plate and the horizontal plane ranges from 5 ° to 45 °.

Optionally, the second sterilization module comprises a plurality of sub-sterilization modules stacked up and down, and the sub-sterilization modules are plasma sterilization modules, ultraviolet sterilization modules, negative ion generation modules, ozone generation modules or wet sterilization membranes.

Optionally, the air sterilizer further comprises a second purification module, wherein the second purification module is arranged at the second air inlet in a drawing manner.

The technical proposal of the utility model adopts a plurality of fans to one-to-one correspond to a plurality of air outlets for air outlet, which can obviously increase the air supply amount and the air supply range; and, through locating the roof of casing with at least one air outlet to and at least one air outlet locates on the week lateral wall of casing, make air sterilizer carry out the air-out with the air-out direction of difference, effectively improve air supply angle and further increase air supply scope, thereby can realize the quick diffusion of room air current, and then be favorable to promoting the disinfection effect of room air.

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 view of an external structure of an air sterilizer according to an embodiment of the present invention;

FIG. 2 is an exploded view of the air sanitizer of FIG. 1;

FIG. 3 is a schematic view of the internal structure of the air sterilizer shown in FIG. 1;

FIG. 4 is an enlarged view taken at A in FIG. 3;

FIG. 5 is a simulated view of the direction of air flow within the air sanitizer of FIG. 1;

fig. 6 is a simulation of the air velocity in the air sterilizer of fig. 1.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Shell body	110	First air inlet
120	Second air inlet	130	First air outlet
				140	Second air outlet	210	First fan
220	Second fan	310	First disinfection module
				320	Second sterilization module	321	Sub-sterilization module
400	Second purifying module	500	Partition board

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, if directional indications (such as upper, lower, first, second, front and rear … …) are involved in the embodiment of the present invention, the directional indications 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 indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. 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 embodiment of the present invention provides an air sterilizer, which will be specifically described with reference to fig. 1 to 6.

In an embodiment of the present invention, as shown in fig. 1 to 3, the air sterilizer includes:

the air conditioner comprises a shell 100, wherein the shell 100 is provided with a plurality of air inlets and a plurality of air outlets, and the plurality of air inlets and the plurality of air outlets are communicated in a one-to-one correspondence manner to form a plurality of air channels;

at least one air outlet is arranged on the top wall of the shell 100, and at least one air outlet is arranged on the peripheral side wall of the shell 100.

It should be noted that, unlike the air purifying or filtering module, which only filters dust, particles, impurities, and the like in the air, the disinfecting module in this embodiment is a device capable of killing bacteria, viruses, and the like in the air. Therefore, the air sterilizer in this embodiment is also significantly different from the air purifier, and the air sterilizer can sterilize and disinfect air.

It can be understood that compared with the scheme of adopting a single fan, the air inlet volume and the air outlet volume can be obviously increased by adopting two fans. In addition, in the present embodiment, a plurality of air outlets are further provided on the casing 100 to increase the air blowing amount and the air blowing range. Wherein, at least one air outlet is arranged on the top wall of the shell 100, namely, the air sterilizer can discharge air from the top, and the top discharge is favorable for spreading the air flow farther; and at least one air outlet is arranged on the peripheral side wall of the shell 100, which is beneficial to expanding the air supply amount and the air supply range. This embodiment technical scheme makes air sterilizing machine can carry out the air-out from two different air-out directions at least, is favorable to enlarging the air supply scope, promotes the diffusion velocity of indoor interior air current to do benefit to the disinfection effect who promotes indoor air. It should be noted that the air outlet is disposed on a peripheral sidewall of the casing 100, specifically, the air outlet may be disposed on at least one of a front sidewall, a rear sidewall, a left sidewall and a right sidewall of the casing 100.

The technical proposal of the utility model adopts a plurality of fans to one-to-one correspond to a plurality of air outlets for air outlet, which can obviously increase the air supply amount and the air supply range; and, through locating the roof of casing 100 with at least one air outlet to and at least one locate on the week lateral wall of casing 100, make air sterilizer carry out the air-out with the air-out direction of difference, improved the air supply angle and further increased the air supply scope, thereby can realize the quick diffusion of room air current, and then be favorable to promoting the disinfection effect of room air.

In this embodiment, the air inlets include a first air inlet 110 and a second air inlet 120, the air outlets include a first air outlet 130 disposed on the top wall of the housing 100 and a second air outlet 140 disposed on the peripheral side wall of the housing 100, a first air duct is formed between the first air inlet 110 and the first air outlet 130, and a second air duct is formed between the second air inlet 120 and the second air outlet 140;

the air blower comprises a first air blower 210 and a second air blower 220 which are arranged in parallel up and down, the first air blower (210 is arranged in a first air duct, the second air blower 220 is arranged in a second air duct, the disinfection module comprises a first disinfection module 310 and a second disinfection module 320, the first disinfection module 310 is arranged in the first air duct, the second disinfection module 320 is arranged in the second air duct, in the flow direction of the air, the first disinfection module 310 is arranged at the upstream of the first air blower 210 to reduce the air-out resistance and noise of the air disinfection machine, of course, in other embodiments, the first disinfection module 310 can be arranged at the downstream of the first air blower 210, and similarly, the second disinfection module 320 is arranged at the upstream of the second air blower 220, of course, in other embodiments, the second disinfection module 320 can be arranged at the downstream of the second air blower 220, therefore, when the air disinfection machine works, two air flow paths are formed inside the air disinfection machine, the method comprises the following steps: the first intake vent 110 → the first sterilizing module 310 → the first blower 210 → the first outlet vent 130, the second intake vent 120 → the second sterilizing module 320 → the second blower 220 → the second outlet vent 140.

In this embodiment, as shown in fig. 2 and 3, the first fan 210 and the second fan 220 are both centrifugal fans. In other embodiments, the first fan 210 and the second fan 220 may be other types of fans, such as axial flow fans. Compared with an axial flow fan, the centrifugal fan has the advantages of large wind pressure, low noise and the like. In addition, the centrifugal fan supplies air along the axial direction and supplies air along the radial direction, so that the air sterilizer can supply air in the circumferential direction conveniently.

Further, as shown in fig. 1 and 2, the first wind inlet 110 is disposed on a peripheral side wall of the housing 100, and the first wind inlet 110 is located above the second wind outlet 140. It is understood that, in order to avoid the first air duct and the second air duct from interfering with each other due to the crossing, the first air inlet 110 is disposed above the second air outlet 140 in the embodiment. In addition, the first air inlet 110 is disposed on the peripheral side wall of the housing 100, and the first air inlet 110 is located below the first fan 210. The first fan 210 is a centrifugal fan, the axis of the centrifugal fan is arranged along the vertical direction, and the first air inlet 110 is located below the first fan 210, so that an air inlet space is formed below the centrifugal fan, and the centrifugal fan can radiate air from the axial direction.

In this embodiment, the first air inlet 110 is annularly disposed on the peripheral side wall of the housing 100, the first sterilization module 310 is annularly disposed on the inner peripheral side of the housing 100, and the first sterilization module 310 is disposed corresponding to the first air inlet 110. Of course, in other embodiments, the first intake vent 110 may be disposed on only one of the side walls of the housing 100. In this embodiment, the first air inlet 110 is annularly disposed, so that the air inlet area and the air inlet volume of the first air duct can be significantly increased, and the air circulation effect is improved. In addition, first disinfection module 310 also is the annular setting, through with the corresponding setting of annular first disinfection module 310 and annular first air intake 110, so, when first fan 210 drive air current from the four sides air inlet, all can disinfect through first disinfection module 310 to show the disinfection effect that promotes the room air. The first sterilization module 310 may be disposed in a circular ring shape or a square ring shape, and the shape of the first sterilization module 310 is determined by the shape of the housing 100. Specifically, the ring-shaped first sterilization module 310 may be formed by four sub-sterilization modules 321 which may be the same or different, or the first sterilization module 310 may be integrally formed into a ring shape.

In addition, in this embodiment, the first air outlet 130 is also disposed in a ring shape. The first fan 210 is a centrifugal fan, which discharges air along a radial direction, and an annular air discharge duct is formed between the casing 100 and the first fan 210, so that when the first fan 210 drives the air flow to be thrown out along the radial direction, the air flow can pass through the annular air discharge duct and then be blown out from the annular first air outlet 130.

Further, as shown in fig. 2, the sterilizer further includes a first purification module, which is disposed annularly and is annularly disposed on an outer circumferential side of the first sterilization module 310. Or the first purifying module comprises a plurality of sub-purifying modules, the first air inlet 110 comprises a plurality of sub-air inlets respectively arranged on the peripheral side wall of the casing 100, and the plurality of sub-purifying modules are arranged at the plurality of sub-air inlets in a one-to-one correspondence manner. That is, the sub-air inlets on the peripheral side wall of the casing 100 may be provided with air inlet grilles, or may be used to install sub-purification modules. It can be understood that the purification module is used for filtering and adsorbing air pollutants such as PM2.5, dust, pollen and formaldehyde in the air, and this embodiment technical scheme is through will purifying module and disinfection module and range upon range of setting mutually along the air flow direction for the air sterilizing machine not only can disinfect and disinfect, can also filter and purify the air, thereby promotes air quality comprehensively. In addition, first purification module ring is located the outer loop side of first disinfection module 310, when the air got into this air sterilizing apparatus inside, can filter through first purification module earlier and purify to get rid of behind most air contaminant, disinfect the disinfection through first disinfection module 310 again, so more do benefit to the life who promotes first disinfection module 310.

Specifically, the sub-purification module is a primary filter screen, or a HEPA (high efficiency particulate air) screen, or a catalytic screen, or an IFD (intermediate frequency fluid) purification module. Wherein, the primary filter screen is suitable for the primary filtration of air, and is mainly used for filtering dust particles with the particle size of more than 5 mu m; the removal efficiency of particles with the diameter of more than 0.3 micron in the air can reach more than 99.97 percent, and pollutants such as smoke, dust, bacteria and the like can be efficiently filtered; the catalytic net is mainly a photocatalyst filter net which can effectively filter various mycete and viruses and decompose harmful gases. The IFD purification module adopts an electrostatic dust removal technology, can filter dust, smoke and bacteria smaller than cells, and prevents diseases such as lung diseases, lung cancer, liver cancer and the like.

In this embodiment, as shown in fig. 2, the second air inlet 120 is disposed on the peripheral side wall of the housing 100, and the second air outlet 140 is located above the second air inlet 120; the second sterilization module 320 is located between the second air inlet 120 and the second air outlet 140, and the air passing surface of the second sterilization module 320 is disposed from bottom to top. The second air inlet 120 may be disposed on one of the front side wall, the rear side wall, the left side wall and the right side wall of the casing 100, or may be disposed around the peripheral side wall of the casing 100. The second outlet 140 is located above the second inlet 120, so as to increase the outlet height of the second outlet 140, and further diffuse the airflow. In addition, the second air outlet 140 is disposed corresponding to the circumferential direction of the second fan 220, so that the second fan 220 drives the airflow to be thrown out along the radial direction and then directly blown out from the circumferential direction of the housing 100. The second sterilization module 320 is located between the second air inlet 120 and the second air outlet 140, that is, in the flowing direction of the air, the second sterilization module 320 is located at the upstream of the second fan 220, which is beneficial to reducing the air outlet resistance and noise of the second air outlet 140. It can be understood that the flowing direction of the air in the second air duct is from bottom to top, therefore, the air passing surface of the second disinfection module 320 is arranged from bottom to top according to the technical solution of the present embodiment, so as to sufficiently disinfect the air flowing through the second air duct.

Further, the second air outlet 140 is disposed around the second fan 220, that is, the second air inlet 120 is disposed around the peripheral wall of the casing 100, so as to increase the air inlet area and the air inlet volume of the second air duct and improve the air circulation effect. Of course, in other embodiments, the second outlet 140 may be disposed on only one of the sidewalls of the casing 100.

Further, as shown in fig. 2 to 4, a partition plate 500 is disposed between the first fan 210 and the second fan 220 to separate the first air channel from the second air channel, so as to prevent the occurrence of mutual interference between the two air channels, so that the two air channels are independent of each other and do not interfere with each other, thereby facilitating the increase of the air volume and the reduction of the noise. It should be noted that, in the present embodiment, the lower surface of the partition board 500 is inclined downward from the central portion to the outer circumferential side, because the first inlet 110 and the second outlet 140 are all disposed around the circumferential sidewall of the housing 100, and the first inlet 110 and the second outlet 140 are close to each other, so that the air flow blown out from the second outlet 140 and the air flow entering from the first inlet 110 are easily interfered with each other. According to the technical scheme of the embodiment, the lower surface of the partition board 500 is inclined downwards to guide the airflow of the second air outlet 140 to be obliquely blown downwards, so that the interference and influence on the airflow flowing to the first air inlet 110 are effectively reduced, and the phenomenon of airflow short circuit is prevented.

Further, the included angle between the lower surface of the partition 500 and the horizontal plane ranges from 5 ° to 45 °. It will be appreciated that the angle between the lower surface of the baffle 500 and the horizontal plane should not be too small or too large. If the included angle between the first air inlet and the second air outlet is too small, the air flow blown out from the second air outlet 140 is not guided downward in an inclined manner, and the air flow flowing to the first air inlet 110 may be interfered and influenced; if the included angle between the two is too large, that is, the lower surface of the partition board 500 is too inclined downward, the air outlet area of the lower outlet is obviously reduced, and the air outlet volume of the second air outlet 140 is reduced.

Further, as shown in fig. 2 and 3, the second sterilizing module 320 includes a plurality of sub-sterilizing modules 321 which are stacked in the up-down direction. In this embodiment, the second sterilization module 320 is formed of a sub-sterilization module 321 of a multi-layered flat plate type. The sterilization module may include a plurality of identical sub-sterilization modules 321 or may include a plurality of different sub-sterilization modules 321. Specifically, the housing 100 is provided with a plurality of mounting openings, the plurality of sub-sterilization modules 321 are mounted at the plurality of mounting openings in a one-to-one correspondence manner, and the sub-sterilization modules 321 are mounted at the mounting openings in a pull-able manner, so as to facilitate mounting, maintenance and replacement of the sub-sterilization modules 321.

Specifically, the sub-sterilization module 321 is a plasma sterilization module, an ultraviolet sterilization module, an anion generation module, an ozone generation module, a sterilization wet film, or the like. The plasma sterilization module can generate plasma, and the huge electric field effect in the plasma can cause serious breakdown and damage to bacterial cell membranes, so that bacteria and viruses can be killed, and harmful organic matters can be decomposed; the ultraviolet disinfection module can damage the structure of DNA in the organism by irradiating microorganisms such as bacteria, viruses and the like by ultraviolet rays, so that the organism can die immediately or lose reproductive capacity; the negative ion generating module can activate oxygen molecules in the air to form oxygen-carrying negative ions, and the negative oxygen ions are combined with oxygen in the air to form 'active oxygen' so as to decompose cell membranes of bacteria and oxidize proteins of viruses, thereby achieving the effects of sterilization and disinfection; the ozone generating module is used for generating ozone, and the ozone destroys the structure of a microbial film by the oxidation of oxygen atoms, thereby realizing the sterilization effect; the disinfection wet film is usually used with an electrolytic cell, electrolyte solution (such as sodium chloride solution) in the electrolytic cell is electrolyzed to generate a strengthening substance such as hypochlorous acid and the like, and the strengthening substance is absorbed by the wet film, and when air flows through the disinfection wet film, the strengthening substance can cause protein denaturation of bacteria and viruses in the air, so that the effects of sterilization and disinfection are achieved.

Further, as shown in fig. 2, the air sterilizer further includes a second purification module 400, and the second purification module 400 is drawably disposed at the second air inlet 120. It can be understood that, in the flow direction of the air, the second purification module 400 is located at the upstream of the second disinfection module 320, when the air enters the air sterilizer, the air can be filtered and purified through the second purification module 400 first, so as to remove most of the air pollutants, and then be sterilized and disinfected through the second disinfection module 320, thereby being more beneficial to prolonging the service life of the second disinfection module 320. In addition, the second purification module 400 is provided in a drawing type, so that a user can install, maintain or replace the second purification module 400 conveniently.

As shown in fig. 5, the present embodiment also performs simulation analysis on the air flow direction in the air sterilizer, and the simulation diagram can reflect the overall movement of the air flow in the air sterilizer. Specifically, within the air sterilizer, there are two air flow paths, one of which is: air is fed from the periphery, and the air flow moves from bottom to top and is blown out from the top; the other airflow path is as follows: the air flow moves from bottom to top and is finally blown out from the peripheral side. This emulation picture has further proved that two fans adopt different air-out directions, is favorable to having increased the air supply scope to can realize the quick diffusion of room air current, and then be favorable to promoting the disinfection effect of room air. As shown in fig. 6, the present embodiment further performs simulation analysis on the air speed in the air sterilizer, and it can be found from the figure that, taking a connecting line between the center of the first fan 210 and the center of the second fan 220 as a central axis, the circumferential color distribution of the central axis is substantially symmetrical and uniform, which indicates that the circumferential air speed distribution of the first fan 210 and the circumferential air speed distribution of the second fan 220 are uniform, and there is substantially no obvious resistance, so that the air sterilizer may uniformly discharge air in the circumferential direction, and the noise is low.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. An air sterilizer, comprising:

2. The air sterilizer of claim 1, wherein the inlet vent comprises a first inlet vent and a second inlet vent, the outlet vent comprises a first outlet vent disposed on the top wall of the housing and a second outlet vent disposed on the peripheral side wall of the housing, a first air channel is formed between the first inlet vent and the first outlet vent, and a second air channel is formed between the second inlet vent and the second outlet vent;

3. The air sterilizer of claim 2 wherein the first fan and the second fan are both centrifugal fans.

4. The air sterilizer of claim 3 wherein the first inlet vent is located on a peripheral side wall of the housing and the first inlet vent is located above the second outlet vent.

5. The air sterilizer of claim 4, wherein the first air inlet is formed around a peripheral side wall of the housing, the first sterilizing module is formed around an inner peripheral side of the housing, and the first sterilizing module is disposed corresponding to the first air inlet.

6. The air sterilizer of claim 5, further comprising a first purification module disposed around an outer circumferential side of the first sterilization module; or the first purification module comprises a plurality of sub-purification modules, the first air inlet comprises a plurality of sub-air inlets which are respectively arranged on the peripheral side wall of the shell, and the plurality of sub-purification modules are arranged at the positions of the sub-air inlets in a one-to-one correspondence manner.

7. An air sterilizer as claimed in claim 6, wherein the sub-purification module is a primary filter screen, or a HEPA screen, or a catalytic screen, or an IFD purification module.

8. The air sterilizer of any one of claims 2 to 7, wherein the second air inlet is provided on a peripheral side wall of the housing, and the second air outlet is located above the second air inlet; the second disinfection module is located between the second air inlet and the second air outlet, and the air passing surface of the second disinfection module is arranged from bottom to top.

9. The air sterilizer of claim 8 wherein the second vent is circumferentially disposed around the second blower.

10. The air sterilizer of claim 9, wherein a partition is provided between the first fan and the second fan to vertically partition the first air passage and the second air passage, and a lower surface of the partition is inclined downward from a central portion toward an outer circumferential side.

11. An air sterilizer as claimed in claim 10 wherein the angle of the lower surface of the baffle with the horizontal is in the range 5 ° to 45 °.

12. The air sterilizer of claim 8, wherein the second sterilization module comprises a plurality of sub-sterilization modules stacked up and down, and the sub-sterilization modules are plasma sterilization modules, ultraviolet sterilization modules, negative ion generation modules, ozone generation modules, or wet sterilization membranes.

13. The air sterilizer of claim 8 further comprising a second purification module, the second purification module being drawably disposed at the second air inlet.