Air purification device

Abstract

The present invention discloses an air purification device, which includes a body housing, a bottom cover, a fan, and a composite filter; an air outlet is provided at the top of the body housing, an opening is provided at the bottom of the body housing, and the bottom cover closes the opening; the fan and the composite filter are sequentially arranged in the body housing along the direction from the air outlet to the opening, and an air inlet is provided in the body housing corresponding to the position of the composite filter; the composite filter includes a first filter, a second filter, a lysozyme filter, an ultraviolet barrier layer, a photocatalyst filter, and an ultraviolet lamp which are sequentially arranged at intervals from the body housing towards the inner direction. The air purification device proposed by the present invention aims at children's activity places and can effectively remove allergens that affect children's respiratory diseases and allergic diseases.

Description

Technical Field

[0001] The present invention relates to the technical field of air purification, and particularly to an air purification device. Background Art

[0002] An air purification device, also known as an air purifier or air cleaner, refers to a product that can adsorb, decompose or transform various air pollutants and effectively improve the air cleanliness. The existing air purification devices have single functions. Generally, they only have good effects on large-sized particulate matters, and the removal effects on pollutants such as formaldehyde, bacteria, fungi, and viruses are not significant. They cannot effectively purify for specific populations and specific environments. Most importantly, the targeted nature of the usage scenarios is not strong, and the disinfection and purification effects for different scenarios are not obvious. Summary of the Invention

[0003] The main object of the present invention is to provide an air purification device, which is designed to effectively remove allergens that affect children's respiratory diseases and allergic diseases in children's activity places.

[0004] To achieve the above object, the air purification device proposed by the present invention includes a body housing, a bottom cover, a fan, and a composite filter; an air outlet is provided at the top of the body housing, an opening is provided at the bottom of the body housing, and the bottom cover closes the opening; the fan and the composite filter are sequentially arranged in the body housing along the direction from the air outlet to the opening, and an air inlet is provided on the body housing corresponding to the position of the composite filter; the composite filter includes a first filter, a second filter, a lysozyme filter, an ultraviolet barrier layer, a photocatalyst filter, and an ultraviolet lamp, which are sequentially arranged at intervals from the body housing towards the inner direction.

[0005] Optionally, the air purification device further includes an air flow boosting structure arranged in the body housing. The air flow boosting structure includes a volute and a boosting air duct. The fan is arranged in the volute. The air inlet end of the volute is engaged with the composite filter. The air outlet end of the volute is communicated with the air inlet end of the boosting air duct. The air outlet end of the boosting air duct is communicated with the air outlet. A spiral rising guide plate is arranged in the boosting air duct.

[0006] Optionally, the volute, the boosting air duct, and the guide plate are integrally formed.

[0007] Optionally, an air outlet grille is further provided at the air outlet, and a rotatable air guide vane is arranged on the air outlet grille.

[0008] Optionally, the included angle between the air guide vane and the horizontal plane is 30° - 90°.

[0009] Optionally, a nano-scale breathable film is further arranged between the first filter and the second filter.

[0010] Optionally, the first filter screen, the breathable membrane, the second filter screen, the lysozyme filter screen, the ultraviolet ray barrier layer, and the photocatalyst filter screen are all cylindrical.

[0011] Optionally, the first filter screen, the breathable membrane, the second filter screen, the lysozyme filter screen, the ultraviolet ray barrier layer, and the photocatalyst filter screen are all square flakes.

[0012] Optionally, the wavelength of the ultraviolet rays emitted by the ultraviolet lamp is 250 nm - 370 nm.

[0013] Optionally, the second filter screen is a HEPA filter screen.

[0014] In the technical solution proposed by the present invention, the air purification device can effectively reduce the contents of particulate matters such as PM2.5, chemical pollutants such as formaldehyde, fungi such as Aspergillus flavus, and viruses such as H1N1 in the air through the composite filter screen composed of the first filter screen, the second filter screen, the lysozyme filter screen, the ultraviolet ray barrier layer, the photocatalyst filter screen, and the ultraviolet lamp. It is applicable to places where children stay for a long time, such as kindergartens, children's rooms, and children's palaces, and is more targeted. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0016] Figure 1 It is a schematic diagram of the overall structure of the air purification device of the present invention;

[0017] Figure 2 It is a schematic top view of the composite filter screen of the air purification device of the present invention;

[0018] Figure 3 It is a schematic diagram of the internal structure of the air purification device of the present invention;

[0019] Figure 4 It is a schematic perspective view of the air purification device of the present invention;

[0020] Figure 5 It is a schematic diagram of the structure of the composite filter screen in another embodiment of the air purification device of the present invention.

[0021] Explanation of the reference numerals in the drawings:

[0022] Label Name Label Name 10 Fuselage housing 404 Ultraviolet ray barrier layer 11 Air outlet 405 Photocatalyst filter 12 Opening 406 Ultraviolet lamp 13 Air inlet 407 Breathable film 20 Bottom cover 50 Airflow pressurizing structure 30 Fan 51 Volute 40 Composite filter 52 Pressurizing air duct 401 First filter 53 Deflector 402 Second filter 60 Air outlet grille 403 Lysozyme filter 61 Air guide vane

[0023] The implementation, functional features and advantages of the objectives of the present invention will be further described in conjunction with embodiments with reference to the accompanying drawings. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] It should be noted that all directional indications (such as up, down, left, right, front, back,...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0026] In addition, the descriptions such as "first" and "second" in the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0027] In the present invention, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0028] In addition, the technical solutions between various embodiments of the present invention can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0029] The present invention provides an air purification device.

[0030] Please refer to Figure 1 and Figure 2, in the embodiments of the present invention, the air purification device includes a body housing 10, a bottom cover 20, a blower 30, and a composite filter 40; an air outlet 11 is provided at the top of the body housing 10, and an opening 12 is provided at the bottom of the body housing 10, and the bottom cover 20 closes the opening 12; the blower 30 and the composite filter 40 are sequentially arranged in the body housing 10 along the direction from the air outlet 11 to the opening 12, and an air inlet 13 is provided in the body housing 10 corresponding to the position of the composite filter 40; the composite filter 40 includes a first filter 401, a second filter 402, a lysozyme filter 403, an ultraviolet barrier layer 404, a photocatalyst filter 405, and an ultraviolet lamp 406 which are sequentially arranged at intervals from the body housing 10 towards the interior direction.

[0031] In the technical solution proposed by the present invention, the air purification device can effectively reduce the content of particulate matters such as PM2.5, chemical pollutants such as formaldehyde, fungi such as Aspergillus flavus, and viruses such as H1N1 in the air through the composite filter 40 composed of the first filter 401, the second filter 402, the lysozyme filter 403, the ultraviolet barrier layer 404, the photocatalyst filter 405, and the ultraviolet lamp 406, and is applicable to places where children stay for a long time, such as kindergartens, children's rooms, and children's palaces, which is more targeted.

[0032] Specifically, the first filter 401 is a primary filter, and the primary filter is mainly used to filter large particulate pollutants such as dust and hair in the air.

[0033] Specifically, the second filter 402 is a HEPA high-efficiency filter, and the HEPA high-efficiency filter can filter out fine particulate matters such as PM2.5 and some bacteria in the air.

[0034] Specifically, the lysozyme filter 403 utilizes lysozyme to be able to destroy the cell wall and thus kill some bacteria.

[0035] Specifically, the photocatalyst filter 405 can decompose harmful gases such as formaldehyde under the irradiation of the ultraviolet lamp 406. The wavelength of the ultraviolet light emitted by the ultraviolet lamp 406 is 250nm - 370nm. After multiple experimental verifications, when the wavelength of the ultraviolet light emitted by the ultraviolet lamp 406 is 254nm, the purification effect of the photocatalyst filter 405 is the best; at the same time, the ultraviolet light with a wavelength of 254nm can also directly kill some bacteria and viruses, further increasing the purification effect.

[0036] Specifically, an ultraviolet barrier layer 404 is provided between the lysozyme filter screen 403 and the photocatalyst filter screen 405. The ultraviolet barrier layer is used to prevent the ultraviolet rays emitted by the ultraviolet lamp 406 from passing through the photocatalyst filter screen 405 and inactivating the lysozyme on the lysozyme filter screen 403. At the same time, the ultraviolet barrier layer 404 can also reflect part of the ultraviolet rays and contact the photocatalyst filter screen 405 again, making the filtration and sterilization more thorough.

[0037] Furthermore, a nanoscale breathable membrane 407 is also provided between the first filter screen 401 and the second filter screen 402. The nanoscale breathable membrane 407 can evenly disperse the air flow filtered by the first filter screen 401 and then transport it to the second filter screen 402, thus avoiding the phenomenon of uneven and insufficient contact between the air flow and the filter screen caused by the mixing of the incoming air flows.

[0038] In the embodiment of the present invention, the first filter screen 401, the breathable membrane 407, the second filter screen 402, the lysozyme filter screen 403, the ultraviolet barrier layer 404, and the photocatalyst filter screen 405 are all cylindrical. Centered on the ultraviolet lamp 406, the photocatalyst filter screen 405, the ultraviolet barrier layer 404, the lysozyme filter screen 403, the second filter screen 402, the breathable membrane 407, and the first filter screen 401 are sequentially sleeved outside the ultraviolet lamp 406. The cylindrical composite filter screen 40 can purify the air in all directions.

[0039] Furthermore, please refer to Figure 3 and Figure 4 , the air purification device further includes an air flow pressurization structure 50 provided in the body housing 10. The air flow pressurization structure 50 includes a volute 51 and a pressurization air duct 52. The fan 30 is arranged in the volute 51. The air inlet end of the volute 51 is engaged with the composite filter screen 40. The air outlet end of the volute 51 communicates with the air inlet end of the pressurization air duct 52. The air outlet end of the pressurization air duct 52 communicates with the air outlet 11. A spiral rising guide plate 53 is arranged in the pressurization air duct 52. Among them, the volute 51, the pressurization air duct 52, and the guide plate 53 are integrally formed, and their function is to completely confine the purified gas within the structure. The pressurization air duct 52 is a twisted cylinder, and the guide plate 53 is arranged inside it, and its function is to pressurize and transport the purified air to the air outlet 11. The guide plate 53 is a spiral rising structure, and its function is to further increase the conveying pressure of the air flow confined in the pressurization air duct 52.

[0040] Furthermore, please refer to again Figure 1The air outlet 11 is also provided with an air outlet grille 60, and the air outlet grille 60 is provided with a rotatable air guide plate 61. The angle between the air guide plate 61 and the horizontal plane is 30° to 90°. The rotatable air guide plate 61 can adjust the air outlet direction as needed, effectively improving the CADR value (clean air delivery ratio).

[0041] After the fan 30 is started, the air purification device proposed by the present invention sucks in the indoor air from the air inlet 13, passes through the first filter 401 of the first layer to filter large suspended particles such as hair and dust, and is evenly dispersed by the breathable membrane 407 and then transported to the second filter 402 of the second layer; the second filter 402 then filters tiny particles such as PM2.5 and some bacteria, and then the lysozyme filter 403 of the third layer kills microorganisms, bacteria and viruses, passes through the ultraviolet blocking layer 404 of the fourth layer, and finally the photocatalyst filter 405 of the fifth layer decomposes gaseous pollutants such as formaldehyde under the irradiation of the ultraviolet lamp 406, thereby completing comprehensive purification. The purified air is then sent to the airflow boosting structure 50 by the volute 51, and is sent out from the air outlet 11 after being boosted under the joint action of the boosting air duct 52 and the guide plate 53.

[0042] In another embodiment of the present invention, see Figure 5 The first filter 401, the air permeable membrane 407, the second filter 402, the lysozyme filter 403, the ultraviolet blocking layer 404 and the photocatalyst filter 405 are all in the shape of square sheets. The ultraviolet lamp 406 is located directly behind the photocatalyst filter 405. The composite filter 40 of this embodiment is suitable for an air purification device that takes in air from both sides of the fuselage.

[0043] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An air purification device, characterized in that, it includes a body housing, a bottom cover, a fan and a composite filter; an air outlet is provided at the top of the body housing, an opening is provided at the bottom of the body housing, and the bottom cover closes the opening; the fan and the composite filter are sequentially arranged in the body housing along the direction from the air outlet to the opening, and an air inlet is provided at the position of the body housing corresponding to the composite filter; the composite filter includes a first filter, a second filter, a lysozyme filter, an ultraviolet barrier layer, a photocatalyst filter and an ultraviolet lamp which are sequentially arranged at intervals from the body housing to the inner direction, a nano-scale breathable film is also provided between the first filter and the second filter, the lysozyme filter kills bacteria through lysozyme, and the ultraviolet barrier layer is used to prevent the ultraviolet light emitted by the ultraviolet lamp from passing through the photocatalyst filter, so that the lysozyme on the lysozyme filter loses its activity; the air purification device further includes an air flow boosting structure arranged in the body housing, the air flow boosting structure includes a volute and a boosting air duct, the fan is arranged in the volute, the air inlet end of the volute is engaged with the composite filter, the air outlet end of the volute is communicated with the air inlet end of the boosting air duct, the air outlet end of the boosting air duct is communicated with the air outlet, and a spiral rising guide plate is arranged in the boosting air duct.

2. The air purification device according to claim 1, characterized in that, the volute, the boosting air duct and the guide plate are integrally formed.

3. The air purification device according to claim 1, characterized in that, an air outlet grille is further provided at the air outlet, and a rotatable air guide vane is provided on the air outlet grille.

4. The air purification device according to claim 3, characterized in that, the included angle between the air guide vane and the horizontal plane is 30° - 90°.

5. The air purification device according to claim 1, characterized in that, the first filter, the breathable film, the second filter, the lysozyme filter, the ultraviolet barrier layer and the photocatalyst filter are all cylindrical.

6. The air purification device according to claim 1, characterized in that, the first filter, the breathable film, the second filter, the lysozyme filter, the ultraviolet barrier layer and the photocatalyst filter are all square sheets.

7. The air purification device according to claim 1, characterized in that, the wavelength of the ultraviolet light emitted by the ultraviolet lamp is 250nm - 370nm.

8. The air purification device according to claim 1, characterized in that, the second filter is a HEPA filter.

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