CN212204875U

CN212204875U - Air purifier with sterilizing and formaldehyde removing functions

Info

Publication number: CN212204875U
Application number: CN202020849348.9U
Authority: CN
Inventors: 罗洋
Original assignee: Zhenjiang Lujie Electronic Co ltd
Current assignee: Zhenjiang Lujie Electronic Co ltd
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2020-12-22
Anticipated expiration: 2030-05-20

Abstract

The utility model discloses an air purifier with sterilizing and formaldehyde removing functions, which comprises a purifier shell, wherein the top of the purifier shell is provided with a top cover, air inlets are arranged around the top cover, the inside of the purifier shell is divided into a purifying cavity and an air outlet cavity from top to bottom, a first bin and a second bin are arranged in the purifying cavity below the top cover, the air inlets are communicated with the first bin, one side of the first bin is provided with air vents, the air vents are communicated with the second bin, the outlet of the second bin is communicated with the air outlet cavity, and fans are arranged in the air outlet cavity; an ultraviolet light source is arranged in at least one of the first bin or the second bin; an external power supply port is formed in one side of the purifier shell, and the fan and the power supply input end of the ultraviolet light source are connected with the external power supply port in an integrated mode through a circuit. The utility model provides an air purifier with remove formaldehyde effect disinfects, long service life (UVC LED life > 10000H), non-maintaining maintenance, use cost is low.

Description

Air purifier with sterilizing and formaldehyde removing functions

Technical Field

The utility model belongs to indoor, the novel air purifier who has the formaldehyde eliminating effect that disinfects that uses in the car, concretely relates to air purifier with formaldehyde eliminating effect that disinfects.

Background

Most of air purifiers with the functions of sterilizing and removing formaldehyde in the current market need to use a filter screen or methods such as negative ions and ozone to remove bacteria, viruses, formaldehyde and the like, the effect is gradually reduced along with the prolonging of the service life, and secondary pollution is caused if the filter screen is not replaced in time. Meanwhile, the product has high cost, complex structure and short service life.

This product make full use of LED deep ultraviolet self possess kill bacterium and virus, the ability of decomposition formaldehyde, make full use of simultaneously the ultraviolet ray is the characteristic of best excitation light catalyst to and the super long life and the efficiency of LED UV lamp pearl. With the structure, the flow of the air flow is controlled; the irradiation intensity of ultraviolet rays is enhanced by utilizing structural reflection; by using the structure, the optimum ultraviolet irradiation intensity for the photocatalyst is formed. Ultraviolet light and photocatalyst are formed in the working bin to simultaneously exert the best effect, kill pathogenic microorganisms and remove harmful organic matters such as formaldehyde and the like.

Disclosure of Invention

The utility model provides a can keep high efficiency for a long time, the air purifier who has the effect of disinfecting and removing formaldehyde that lasts the use, long service life (UVC LED life > 10000H), non-maintaining maintenance, use cost is low.

The technical scheme of the utility model as follows:

an air purifier with sterilization and formaldehyde removal functions comprises a purifier shell, wherein a top cover is arranged at the top of the purifier shell, an air inlet is formed in the purifier shell below the top cover, the interior of the purifier shell is divided into a purification cavity and an air outlet cavity from top to bottom, a first bin and a second bin are arranged in the purification cavity below the top cover, the air inlet is communicated with the first bin, an air vent is formed in one side of the first bin and communicated with the second bin, an outlet of the second bin is communicated with the air outlet cavity, and a fan is arranged in the air outlet cavity; an ultraviolet light source is arranged in at least one of the first bin and the second bin; an external power supply port is formed in one side of the purifier shell, and the fan and the power supply input end of the ultraviolet light source are connected with the external power supply port in an integrated mode through a circuit.

Furthermore, the sectional area of the cabin body of the first cabin is larger than that of the air inlet.

Furthermore, the sectional area of the bin body of the second bin is larger than that of the vent hole.

Further, air purifier with effect of removing formaldehyde disinfects, be provided with first ultraviolet source in the first bin, be provided with first photocatalyst contact in the first bin or set up the photocatalyst on the inner wall of first bin, or set up first photocatalyst contact and set up the photocatalyst simultaneously.

Further, air purifier with effect of demethylating aldehyde disinfects, be provided with first ultraviolet source in the first bin, be provided with the first reflection of light spare that can reflect the ultraviolet ray in the first bin.

Further, the air purifier with sterilization and formaldehyde removal functions is characterized in that a first ultraviolet light source is arranged in the first chamber, and a reflecting layer capable of reflecting ultraviolet light is arranged on part of or all of the inner wall of the first chamber.

Further, the air purifier with the functions of sterilizing and removing formaldehyde is characterized in that a control circuit board is arranged in the first chamber, the fan and the ultraviolet light source are connected with the control circuit board, a power switch button is connected onto the control circuit board, a power inlet end of the control circuit board is connected to an external power supply port through a circuit, and the power switch button is arranged on the outer wall of the purifier shell.

Further, the air purifier with the functions of sterilizing and removing formaldehyde is characterized in that a second ultraviolet light source is arranged in the second chamber, and a second photocatalyst contact piece is arranged in the second chamber or a photocatalyst is arranged on the inner wall of the second chamber, or the photocatalyst contact piece and the photocatalyst are arranged simultaneously.

Further, air purifier with effect of demethylating aldehyde disinfects, be provided with second ultraviolet source in the second bin, be provided with the second reflection of light spare that can reflect the ultraviolet ray in the second bin.

Further, the air purifier with sterilization and formaldehyde removal functions is characterized in that a second ultraviolet light source is arranged in the second chamber, and a reflecting layer capable of reflecting ultraviolet light is arranged on part of or all of the inner wall of the second chamber.

Further, air purifier with formaldehyde effect disinfects, the export of second bin is the export of passageway type, the end and the air-out chamber intercommunication of passageway, the passageway top is provided with the lamp plate, sets up second ultraviolet light source on the lamp plate, is provided with the reflector layer that can reflect the ultraviolet ray on the just right second bin inner wall in passageway top.

Furthermore, the air purifier with the functions of sterilization and formaldehyde removal has the advantages that the inner wall of the second chamber, which is right opposite to the top end of the channel, is the arc-shaped inner wall, and ultraviolet rays reflected by the second ultraviolet light source on the lamp panel after irradiating the reflecting layer on the arc-shaped inner wall vertically enter the channel of the channel-shaped outlet.

Further, air purifier with formaldehyde effect that disinfects, the passageway type export be an air-out pipeline, the bottom and the air-out chamber intercommunication of air-out pipeline, the part or whole of air-out pipeline body set up in the second warehouse, the both sides downwardly extending of arc inner wall forms the extension, the extension centers on the body setting of the air-out pipeline in the second warehouse, there is certain space extension bottom and the bottom of second warehouse.

Furthermore, the air purifier with the functions of sterilization and formaldehyde removal is characterized in that an ultraviolet light source is arranged at the bottom of the second chamber, and ultraviolet illumination of the ultraviolet light source covers a space between the extension part and the air outlet pipeline body.

Furthermore, the air purifier with the functions of sterilization and formaldehyde removal is characterized in that at least one of the inner wall and the outer wall of the air outlet pipeline body is coated with a photocatalyst layer or a reflecting layer capable of reflecting ultraviolet light.

Furthermore, the air purifier with the functions of sterilization and formaldehyde removal is characterized in that at least one of the inner side and the outer side of the extension part is provided with a reflecting layer capable of reflecting ultraviolet light or a photocatalyst layer.

Further, the air purifier with the functions of sterilizing and removing formaldehyde is characterized in that a base is arranged at the bottom of the air outlet cavity.

Further, the air purifier with the sterilization and formaldehyde removal functions is characterized in that the side wall of at least one chamber in the first chamber or the second chamber is arranged in an inclined mode.

The utility model provides an air purifier with formaldehyde effect disinfects mainly realizes through setting up of ultraviolet ray synergistic structure that harmful substance is like the destruction of bacterium and virus and like the decomposition of the indoor formaldehyde of fitment. The utility model provides an air purifier with function of demethyl aldehyde disinfects, through setting up first bin and second bin, the route of air circulation in the clarifier has been prolonged, furtherly, the storehouse body sectional area that can set up first bin is greater than the sectional area of air inlet, when air gets into first bin by the air inlet, because the volume increases suddenly, the stall phenomenon can take place for the air of entering, thereby gaseous residence time in first bin has been increased, it is same, the storehouse body sectional area that sets up the second bin is greater than the sectional area of air vent, after the gas of first bin passes through the air vent and gets into the second bin, because the volume increases suddenly, the air of entering produces instantaneous stall phenomenon, the residence time of gas in the second bin has been increased. In addition, through the arrangement of the first bin and the second bin, the flow path of air in the purifier is prolonged, the residence time of the air is prolonged, the relative time of irradiation of an ultraviolet light source is prolonged, the strength of ultraviolet irradiation is further enhanced through the arrangement of the ultraviolet reflecting layer, dead-angle-free irradiation is realized, the effect of killing bacteria and viruses can be further improved by using the photocatalyst, and the photocatalyst has a good decomposition effect on harmful substances in the air such as formaldehyde, so that the harmful substances in the air are comprehensively purified.

The utility model provides an air purifier with formaldehyde effect disinfects through setting up reflector layer or photocatalyst layer that can reflect the ultraviolet ray in first bin and second bin, the structure of the first bin of utilization and second bin that can be fine combines reflector layer and photocatalyst layer, has promoted the effect of sterilization and decomposition formaldehyde in coordination. The ultraviolet light source related in the utility model can be an ultraviolet LED lamp, and can also be in the form of an ultraviolet halogen lamp tube and the like. The arc-shaped inner wall is arranged in the second bin, so that light reflected by the ultraviolet light source vertically irradiates into the channel of the channel-type outlet to form a strongest UV light intensity area, and the efficient application of ultraviolet sterilization is achieved by better utilizing the structure. Harmful substances such as pathogenic microorganisms, formaldehyde and the like in the discharged air are thoroughly killed and decomposed by arranging the reflective layer or the photocatalyst layer in the outlet channel.

The utility model provides an air purifier with function of demethyl aldehyde disinfects adopts air-out down, goes up the circulation mode of return air, drives the abundant circulation that flows of room air, improves room air flow efficiency, and the air-out can not drive room air circulation completely around the solution, the not enough problem of indoor top air flow. The effective working area is in the air inlet duct of the circulating fan, the sectional area of the air inlet duct is large, the air flow rate is slow, and the effective purification time can be prolonged; after the air flows into the designed air inlet, the air firstly enters the first bin and then enters the second bin, and the air flows through the first bin, so that the airflow field is uniform, the air turbulence is reduced, the air flow rate entering the second bin is reduced, the UV light can be prevented from leaking, and the user is prevented from being accidentally injured by the UV rays. The inner wall of the bin increases the inclination angle, the inclined surface can be a rough surface, the contact area of the photocatalyst is increased, the formaldehyde decomposition efficiency is improved, the air flow stroke is prolonged through the special structure and position design of the light reflection and the photocatalyst, and the effective purification time is prolonged; through the special structure and position design of the light reflecting and photocatalyst bin, especially the position design of the UV light source, the illumination dead angle in the bin can be thoroughly eliminated, and the light intensity of ultraviolet rays is improved by 50-80% through the light reflecting device.

The utility model provides an air purifier with function of removing formaldehyde that disinfects, simple structure, use and maintenance cost are low, utilize the overlength life and efficiency of LED UV lamp pearl to and the overlength life of photocatalyst self, effectively maintain long-term work efficiency, ultraviolet sterilization has the broad-spectrum nature, and disinfection efficiency is high, can all kill various pathogenic microorganisms fast, effectively; have abundant ultraviolet light intensity and photocatalyst area of contact in the warehouse, improve formaldehyde decomposition efficiency, utilize the theory of operation of UV light sum photocatalyst, decided the utility model provides an air purifier can not produce harmful substance such as ozone, causes secondary pollution.

Drawings

FIG. 1 is a schematic view of an air purifier with sterilization and formaldehyde removal functions provided in embodiment 1 of the present invention;

FIG. 2 is a schematic view of an air purifier with sterilization and formaldehyde removal functions provided in embodiment 2 of the present invention;

FIG. 3 is a schematic view of an air purifier with sterilization and formaldehyde removal functions provided in embodiment 2 of the present invention;

FIG. 4 is a schematic view of an air purifier with sterilization and formaldehyde removal functions provided in embodiment 3 of the present invention;

in fig. 1-4, 1 is a purifier housing, 2 is a top cover, 3 is an air inlet, 4 is a purifying chamber, 5 is an air outlet chamber, 51 is a fan, 6 is a first chamber, 61 is an air vent, 62 is a first photocatalyst contact, 63 is a first reflector, 64 is a first ultraviolet light source, 7 is a second chamber, 71 is a second ultraviolet light source, 72 is a second photocatalyst contact, 74 is a second reflector, 75 is a lamp panel, 76 is an arc inner wall, 77 is an air outlet pipeline, 78 is an extension, 8 is an ultraviolet light source, 9 is an external power supply port, 10 is a control circuit board, 101 is a power switch key, and 11 is a base.

The specific implementation mode is as follows:

example 1

As shown in fig. 1, the air purifier with sterilization and formaldehyde removal functions provided by this embodiment includes a purifier housing 1, a top cover 2 is disposed on the top of the purifier housing 1, an air inlet 3 is disposed on the purifier housing 1 below the top cover 2, the interior of the purifier housing 1 is divided into a purification chamber 4 and an air outlet chamber 5 from top to bottom, a first bin 6 and a second bin 7 are disposed in the purification chamber 4, the air inlet 3 is communicated with the first bin 6, an air vent 61 is disposed on one side of the first bin 6, the air vent 61 is communicated with the second bin 7, an outlet of the second bin 7 is communicated with the air outlet chamber 5, and a fan 51 is disposed in the air outlet chamber 5; an ultraviolet light source 8 is arranged in the second chamber 7; an external power supply port 9 is formed in one side of the purifier shell 1, a control circuit board 10 is arranged in the first chamber 6, a power switch button 101 is arranged on the control circuit board 10, and the power switch button 101 is arranged at the top of the purifier shell 1 and is exposed out of the top cover 2; the fan 51 and the ultraviolet light source 8 are connected with the control circuit board 10, the power input end of the control circuit board 10 is connected with the external power supply port 9 through a circuit, and the bottom of the air outlet cavity 5 is provided with a base 11.

Still be provided with reflector 74 in second bin 7, reflector 74 sets up directly over ultraviolet source 8, can reflect the ultraviolet ray that ultraviolet source 8 launches, or the partial or whole inner wall of second bin 7 sets up the reflector layer, or the partial or whole of second bin 7 possesses the characteristic of reflection ultraviolet ray for oneself, or realizes the setting of reflector layer through the attached ultraviolet ray reflective membrane in the partial or whole inner wall of second bin 7, has further strengthened the bactericidal effect of ultraviolet ray.

Example 2

As shown in fig. 2, for the air purifier with effect of removing formaldehyde disinfects that this embodiment provided, it has carried out further improvement on embodiment 1's basis, second bin 7 and air-out chamber 5 are through air-out pipeline 77 intercommunication, air-out pipeline 77 bottom and air-out chamber 5 intercommunication, its main part setting are in second bin 7, and air-out pipeline 77 top sets up lamp plate 75, is provided with second ultraviolet light source 71 on lamp plate 75, and the ultraviolet ray of second ultraviolet light source 71 transmission further strengthens ultraviolet germicidal effect through the reflection of second reflector 74. The air outlet pipeline 77 increases the air flow path in the second chamber 7, so that the irradiation time of ultraviolet sterilization is relatively prolonged, and the sterilization effect is improved.

The second chamber 7 is provided with a second photocatalyst contact element 72, the second photocatalyst contact element 72 is arranged around the second reflector 74 and is arranged right above the ultraviolet light source 8, and the irradiation of the ultraviolet light source triggers the photocatalyst to play a role, so that the sterilization effect is further achieved, and meanwhile, harmful substances in the air, such as formaldehyde, can be decomposed. In addition, a photocatalyst may be provided in a part of or on the inner wall of the second chamber 7, and the purification effect may be improved by sufficiently using the photocatalyst.

As shown in fig. 3, a first ultraviolet light source 64 is disposed in the first chamber 6, the first ultraviolet light source 64 is connected to the external power source port 9 through a circuit, a first photocatalyst contact member 62 is disposed above the vent hole 61, and the first photocatalyst contact member 62 can be excited by the first ultraviolet light source 64 to perform a decomposition reaction. In addition, a photocatalyst is coated on part or all of the inner wall of the first chamber 6, and the photocatalyst is matched with the first photocatalyst contact piece 62 to further improve the effect of the photocatalyst reaction; also can set up first reflector in the inside of first bin 6, or set up the reflector layer that can reflect the ultraviolet ray with the part or whole inner wall of first bin 6, or the part or whole inner wall of first bin 6 has the characteristic of reflection ultraviolet ray, or realize the setting of reflector layer through the attached reflective membrane that has reflection ultraviolet ray to increase ultraviolet irradiation intensity.

Example 3

The embodiment provides an air purifier with sterilization and formaldehyde removal functions, as shown in fig. 4, the sectional area of the first chamber 6 is larger than that of the air inlet 3, the sectional area of the second chamber 7 is larger than that of the vent 61, in the process that outside air enters the first chamber 6 through the air inlet 3, due to the fact that the entering space is suddenly increased, the entering air is instantaneously stalled, the circulation time of the air in the purifier is prolonged, when the same air enters the second chamber 7 through the first chamber 6, the phenomenon of instantaneous stalling can also occur, and the irradiation time of an ultraviolet light source is prolonged. In addition, the main part of air-out pipeline 77 sets up in second bin 7, and air-out pipeline 77 top sets up lamp plate 75, sets up second ultraviolet light source 71 on lamp plate 75, through air-out pipeline 77's setting, has increased the circulation route of air in second bin 7, and the stall phenomenon that produces in the cooperation air entering second bin 7 has further prolonged the circulation time of air, has increased the ultraviolet irradiation time.

The top end of the air outlet pipeline 77 is opposite to the arc-shaped inner wall 76, a reflective layer with ultraviolet light reflection function is arranged on the arc-shaped inner wall 76, or the arc-shaped inner wall 76 has ultraviolet light reflection characteristic, and ultraviolet light reflected after the second ultraviolet light source 71 irradiates the reflective layer on the arc-shaped inner wall is vertically shot into a channel of the air outlet pipeline 77 through the arrangement of the position of the second ultraviolet light source and the arrangement of the arc-shaped inner wall 76. Through the setting of arc inner wall 76, can promote ultraviolet illumination's utilization ratio for the air still can obtain ultraviolet illumination's strong effect at the exit, promotes the sterilization effect.

The two sides of the arc-shaped inner wall 76 extend downwards to form extension parts 78, the bottom ends of the extension parts 78 are not contacted with the bottom end of the second chamber 7, a certain space is formed between the extension parts 78 and the bottom end of the second chamber, so that air can normally pass through, the extension part 78 is arranged around the air outlet pipeline 77, the inner wall and the outer wall of the extension part 78 can be provided with a reflective layer, or the inner wall and the outer wall of the extension portion 78 have the characteristic of reflecting ultraviolet light, or the arrangement of a reflecting layer is realized by attaching ultraviolet reflecting films to part or all of the inner wall and the outer wall of the extension portion 78, the ultraviolet light source 8 is arranged at the bottom of the second chamber 7 by utilizing the ultraviolet light reflecting film to enhance the ultraviolet light effect, the ultraviolet light of the ultraviolet light source 8 covers the space between the extension portion 78 and the body of the air outlet pipeline 77, the ultraviolet light source 8 is matched with the second ultraviolet light source 71 to carry out ultraviolet disinfection, and the disinfection effect is enhanced through the reflective layer.

In addition, in other embodiments, the inner wall and the outer wall of the extension portion 78 may also be coated with a photocatalyst layer, and the photocatalyst reaction is triggered by ultraviolet light irradiation, so as to improve the purification effect. The inner wall and the outer wall of the extension portion 78 can be simultaneously provided with a reflective layer, can also be simultaneously provided with a photocatalyst, can also be respectively provided with a reflective layer or a photocatalyst, and similarly, the inner wall of the arc-shaped inner wall 76 can also be provided with a photocatalyst to cooperatively enhance the effects of sterilization and formaldehyde removal. Extension 78 sets up to the slope form of certain angle, has increased ultraviolet illumination intensity, and performance photocatalyst or reflector layer's that can be fine effect, the inclined plane sets up to the mat surface simultaneously, further can improve photocatalyst's effect.

Claims

1. An air purifier with sterilizing and formaldehyde removing functions comprises a purifier shell (1), wherein a top cover (2) is arranged at the top of the purifier shell (1), an air inlet (3) is formed in the purifier shell (1) below the top cover (2), the interior of the purifier shell (1) is divided into a purifying cavity (4) and an air outlet cavity (5) from top to bottom, and the air purifier is characterized in that a first bin (6) and a second bin (7) are arranged in the purifying cavity (4) below the top cover (2), the air inlet (3) is communicated with the first bin (6), an air vent (61) is formed in one side of the first bin (6), the air vent (61) is communicated with the second bin (7), an outlet of the second bin (7) is communicated with the air outlet cavity (5), and a fan (51) is arranged in the air outlet cavity (5); an ultraviolet light source (8) is arranged in at least one of the first bin (6) or the second bin (7); an external power supply port (9) is formed in one side of the purifier shell (1), and the fan (51) and the power input end of the ultraviolet light source (8) are connected with the external power supply port (9) through circuit integration.

2. The air purifier with the sterilization and the formaldehyde removal functions as claimed in claim 1, wherein the sectional area of the first chamber (6) is larger than that of the air inlet (3).

3. The air purifier with the sterilization and formaldehyde removal functions as claimed in claim 1, wherein the sectional area of the second chamber (7) is larger than that of the vent hole (61).

4. The air purifier with sterilization and formaldehyde removal functions as claimed in claim 1, wherein a first ultraviolet light source (64) is disposed in the first chamber (6), and a first photocatalyst contact member (62) is disposed in the first chamber (6), or a photocatalyst is disposed on an inner wall of the first chamber (6), or both the first photocatalyst contact member (62) and the photocatalyst are disposed.

5. The air purifier with sterilization and formaldehyde removal functions as claimed in claim 1, wherein a first ultraviolet light source (64) is disposed in the first chamber (6), and a first light reflecting member (63) capable of reflecting ultraviolet light is disposed in the first chamber (6).

6. The air purifier with sterilization and formaldehyde removal functions as claimed in claim 1, wherein a first ultraviolet light source (64) is disposed in the first chamber (6), and a part of or all of the inner wall of the first chamber (6) is provided with a reflective layer capable of reflecting ultraviolet light.

7. The air purifier with the sterilization and formaldehyde removal functions as claimed in claim 1, wherein a control circuit board (10) is arranged in the first chamber (6), the fan (51) and the ultraviolet light source (8) are connected with the control circuit board (10), a power switch button (101) is connected to the control circuit board (10), a power inlet end of the control circuit board (10) is connected to an external power supply port (9) through a circuit, and the power switch button (101) is arranged on the outer wall of the purifier shell.

8. The air purifier with sterilization and formaldehyde removal functions as claimed in claim 1, wherein a second ultraviolet light source (71) is disposed in the second chamber (7), and a second photocatalyst contact member (72) is disposed in the second chamber (7), or a photocatalyst is disposed on an inner wall of the second chamber (7), or both the second photocatalyst contact member (72) and the photocatalyst are disposed.

9. The air purifier with sterilization and formaldehyde removal functions as claimed in claim 1, wherein a second ultraviolet light source (71) is disposed in the second chamber (7), and a second reflector (74) capable of reflecting ultraviolet light is disposed in the second chamber (7).

10. The air purifier with sterilization and formaldehyde removal functions as claimed in claim 1, wherein a second ultraviolet light source (71) is disposed in the second chamber (7), and a part of or all of the inner wall of the second chamber (7) is provided with a reflective layer capable of reflecting ultraviolet light.

11. The air purifier with the sterilization and formaldehyde removal functions as claimed in claim 1, wherein the outlet of the second chamber (7) is a channel-shaped outlet, the tail end of the channel is communicated with the air outlet cavity, a lamp panel (75) is arranged at the top end of the channel, a second ultraviolet light source (71) is arranged on the lamp panel (75), and a reflective layer capable of reflecting ultraviolet light is arranged on the inner wall of the second chamber (7) right opposite to the top end of the channel.

12. The air purifier with sterilization and formaldehyde removal functions as claimed in claim 11, wherein the inner wall of the second chamber (7) opposite to the top end of the channel is an arc-shaped inner wall (76), and ultraviolet rays reflected by the second ultraviolet light source on the lamp panel (75) after irradiating the reflective layer on the arc-shaped inner wall vertically enter the channel of the channel-shaped outlet.

13. The air purifier with sterilization and formaldehyde removal functions as claimed in claim 12, wherein the channel-type outlet is an air outlet pipe (77), the bottom end of the air outlet pipe (77) is communicated with the air outlet cavity (5), part or all of the body of the air outlet pipe (77) is disposed in the second chamber (7), two sides of the arc-shaped inner wall (76) extend downwards to form an extension portion (78), the extension portion (78) is disposed around the body of the air outlet pipe (77) in the second chamber (7), and a certain space exists between the bottom end of the extension portion (78) and the bottom end of the second chamber (7).

14. The air purifier with sterilization and formaldehyde removal functions as claimed in claim 13, wherein the bottom of the second chamber (7) is provided with an ultraviolet light source (8), and the ultraviolet light of the ultraviolet light source (8) is arranged to cover the space between the extension part (78) and the body of the air outlet pipeline (77).

15. The air purifier with sterilization and formaldehyde removal functions as claimed in claim 13, wherein at least one of the inner wall and the outer wall of the air outlet duct (77) body is coated with a photocatalyst layer or a reflective layer capable of reflecting ultraviolet light.

16. The air purifier with sterilization and formaldehyde removal functions as claimed in claim 13, wherein at least one of the inner side and the outer side of the extension portion (78) is provided with a reflective layer capable of reflecting ultraviolet light or coated with a photocatalyst layer.

17. The air purifier with the sterilization and formaldehyde removal functions as claimed in claim 1, wherein a base (11) is arranged at the bottom of the air outlet cavity (5).

18. The air purifier with sterilization and formaldehyde removal functions as claimed in claim 1, wherein the side wall of at least one of the first chamber (6) or the second chamber (7) is disposed in an inclined manner.