Air disinfection instrument combining filtration and disinfection

Abstract

The utility model relates to an air disinfection instrument combining filtration and disinfection, which relates to the field of air disinfection equipment, and comprises a shell, a top box positioned at the top end of the shell, an air inlet fence and an air outlet fence which are respectively positioned on two sides of the shell, an HEPA (High Efficiency Particulate Air) filter screen group and ultraviolet equipment which are arranged in the shell, and a rotary cylindrical coarse filter screen, the coarse filter screen, the ultraviolet equipment and the HEPA filter screen group are sequentially arranged between the air inlet fence and the air outlet fence; two groups of ultraviolet equipment are arranged, one group of ultraviolet equipment faces the coarse filter screen, and the other group of ultraviolet equipment faces the HEPA filter screen group. According to the air disinfection instrument combining filtration and disinfection, on one hand, the replacement frequency of an efficient filter screen can be reduced by sequentially adopting coarse filtration, ultraviolet disinfection and efficient filtration modes, on the other hand, an ultraviolet lamp faces the filter screen and an HEPA filter screen set, and ultraviolet equipment can be used for disinfecting pathogenic bacteria attached to the filter screen and the HEPA filter screen set, so that the air disinfection instrument has the advantages of being simple in structure and convenient to use. And secondary pollution caused by release of residual germs and other pollutants when the filter screen is replaced is avoided as much as possible.

Description

Technical Field

[0001] This utility model belongs to the field of air disinfection equipment, specifically an air sterilizer that combines filtration and disinfection. Background Technology

[0002] An air purifier is a device used to kill or remove pathogenic microorganisms such as bacteria and viruses from the air, thereby achieving air disinfection and purification. Existing air purifiers typically employ a combined approach of high-efficiency particulate air (HEPA) filtration and ultraviolet (UV) lamp disinfection to purify the air. First, HEPA filtration technology effectively removes fine particulate matter, dust, and germs from the air, capturing particles larger than 0.3 micrometers. Then, ultraviolet light is used to destroy the DNA or RNA of bacteria and viruses, thereby killing the pathogenic microorganisms. In short, it generally involves filtering the air and then disinfecting it by irradiating it with ultraviolet lamps.

[0003] Air purifiers using this method require frequent filter replacements, and during filter replacement, residual bacteria and other contaminants may be released, causing secondary pollution. The filter also creates air resistance, reducing airflow and affecting the speed of ultraviolet lamp disinfection, thus lowering the overall efficiency of the air purifier. Summary of the Invention

[0004] The purpose of this invention is to address the problems in the prior art by providing an air disinfection device that combines filtration and disinfection.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] An air sterilizer that combines filtration and disinfection includes a housing, a top box located at the top of the housing, an air inlet grille and an air outlet grille located on both sides of the housing. The housing is equipped with a HEPA filter assembly, an ultraviolet device and a fan. It also includes a rotating, cylindrical coarse filter. The coarse filter, the ultraviolet device and the HEPA filter assembly are arranged sequentially between the air inlet grille and the air outlet grille.

[0007] The ultraviolet device has two sets, one facing the coarse filter and the other facing the HEPA filter set.

[0008] As a further optimization of this utility model, the two sets of ultraviolet devices are respectively arranged on two baffles, and the two baffles form an S-shaped channel between the coarse filter and the HEPA filter assembly.

[0009] As a further optimization of this utility model, two triangular reflectors are provided at the notches of the inner wall of the housing and the baffles, which are used to reflect the light from the ultraviolet device into the channel between the two baffles.

[0010] As a further optimization of this utility model, the opposing surfaces of the two baffles are provided with prism mirrors for reflecting ultraviolet light.

[0011] As a further optimization of this utility model, a channel plate is provided between the fan and the air outlet grille. The channel plate has a channel that is higher in the front and lower in the back to promote air circulation.

[0012] As a further optimization of this utility model, a guide plate is provided between the air inlet grille and the first group of ultraviolet devices to protect the coarse filter so that the airflow must pass through the coarse filter.

[0013] As a further optimization of this utility model, the lower end of the coarse filter screen is connected to the output shaft of the drive, which is used to drive the coarse filter screen to rotate.

[0014] The beneficial effects of this utility model are as follows:

[0015] This air purifier, combining filtration and disinfection, reduces the frequency of HEPA filter replacement by employing a sequence of coarse filtration, ultraviolet disinfection, and high-efficiency filtration. Furthermore, directing the ultraviolet lamp towards the filters and HEPA filter assembly effectively kills pathogens attached to them, minimizing the release of residual bacteria and other contaminants during filter replacement and preventing secondary pollution. It also reduces air resistance caused by the internal placement of the HEPA filter, thus improving the air purifier's efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the external structure of the air purifier that combines filtration and disinfection;

[0017] Figure 2 This is a top-down 3D structural diagram of the air disinfection device that combines filtration and disinfection.

[0018] Figure 3 This is a schematic diagram of the internal structure of an air purifier that combines filtration and disinfection.

[0019] Diagram: 1. Housing; 2. Top box; 3. Inlet grille; 4. Outlet grille; 5. Coarse filter; 6. HEPA filter assembly; 7. UV device; 8. Baffle plate; 9. Reflector; 10. Prism mirror; 11. Channel plate; 12. Drive; 13. Guide plate; 14. Fan. Detailed Implementation

[0020] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0021] Example 1

[0022] like Figure 1-3 As shown, the air sterilizer combining filtration and disinfection in this embodiment includes a housing 1, a top box 2 located at the top of the housing 1, an air inlet grille 3 and an air outlet grille 4 located on both sides of the housing 1. The housing 1 is made of lightweight, wear-resistant, and high-temperature resistant plastic. The housing 1 is composed of several plates, which together with the top box 2, the air inlet grille 3 and the air outlet grille 4 form a hexahedral enclosure structure. The top box 2 contains electrical components such as a control module, which are not involved in protection and are therefore not shown.

[0023] The housing 1 contains a HEPA filter assembly 6, an ultraviolet (UV) device 7, and a fan 14. The fan 14 is located between the HEPA filter assembly 6 and the air outlet grille 4. The fan 14 is mounted inside the housing 1 via upper and lower support plates to provide suction. The UV device 7 includes a UV lamp and auxiliary electrical components. The HEPA filter assembly 6 includes at least a pre-filter and a high-efficiency filter. The housing 1 of this air purifier also includes a rotatable coarse filter 5. The lower end of the coarse filter 5 is equipped with a drive 12 (motor, etc.) to rotate the coarse filter 5. The coarse filter 5 is used to trap visible impurities in the air, such as hair and lint, and is cylindrical in shape. The rotating mechanism ensures that each side of the coarse filter 5 adheres to impurities. Following the airflow direction from inlet to outlet, the coarse filter 5, UV device 7, and HEPA filter assembly 6 are sequentially positioned between the inlet grille 3 and the outlet grille 4. The UV device 7 has two sets, one facing the coarse filter 5 and the other facing the HEPA filter assembly 6. The UV device 7 disinfects pathogens attached to the coarse filter 5 and HEPA filter assembly 6, minimizing the release of residual bacteria and other contaminants during filter replacement and preventing secondary pollution. It also reduces contaminant adhesion to the HEPA filter assembly 6, increasing its lifespan and reducing replacement frequency.

[0024] Furthermore, the two sets of ultraviolet devices 7 are respectively installed on two baffles 8. The two baffles 8 form an S-shaped channel between the coarse filter 5 and the HEPA filter group 6, which can prolong the residence time of air inside the housing 1 and increase the disinfection efficiency.

[0025] Furthermore, two triangular reflectors 9 are provided at the notches of the inner wall of the housing 1 and the baffle 8, which are used to reflect the light from the ultraviolet device 7 into the channel between the two baffles 8. Prism mirrors 10 are provided on the opposite surfaces of the two baffles 8 to reflect ultraviolet light, so that the air is always affected by ultraviolet light when it flows in the S-shaped channel.

[0026] Furthermore, a channel plate 11 is provided between the HEPA filter assembly 6 and the air outlet grille 4. The channel plate 11 has a channel that is higher in the front and lower in the back to promote air circulation.

[0027] Furthermore, a guide plate 13 is provided between the air inlet grille 3 and the first group of ultraviolet devices 7 to protect the coarse filter 5 so that the airflow must pass through the coarse filter 5.

[0028] When in operation, the fan 14 is turned on, and air enters through the air inlet grille 3. After passing through the coarse filter 5, small objects such as hair and lint are adsorbed. Then the air enters the working area of ​​the ultraviolet device 7, where it is disinfected by the light emitted by the ultraviolet lamp. Finally, it is filtered again through the HEPA filter group 6, and the clean air is discharged from the air outlet grille 4.

[0029] The above-described embodiments are merely one implementation of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. An air sterilizer combining filtration and disinfection, comprising a housing (1), a top box (2) located at the top of the housing (1), an air inlet grille (3) and an air outlet grille (4) located on both sides of the housing (1), wherein the housing (1) is provided with a HEPA filter assembly (6), an ultraviolet device (7) and a fan (14), characterized in that, It also includes a rotating, cylindrical coarse filter (5), the coarse filter (5), the ultraviolet device (7) and the HEPA filter assembly (6) are arranged sequentially between the air inlet grille (3) and the air outlet grille (4); The ultraviolet device (7) is provided with two sets, one set facing the coarse filter (5) and the other set facing the HEPA filter set (6).

2. The air purifier of claim 1, wherein, The two sets of ultraviolet devices (7) are respectively set on two baffles (8), which form an S-shaped channel between the coarse filter (5) and the HEPA filter group (6).

3. The air purifier of claim 2, wherein, Two triangular reflectors (9) are provided at the notch of the inner wall of the housing (1) and the baffle (8) to reflect the light from the ultraviolet device (7) into the channel between the two baffles (8).

4. The air purifier of claim 3, wherein, The two baffles (8) are each provided with a prism mirror (10) on their opposite sides for reflecting ultraviolet light.

5. The air purifier of claim 1, wherein, A channel plate (11) is provided between the fan (14) and the air outlet grille (4). The channel plate (11) is provided with a channel that is higher in the front and lower in the back to promote air circulation.

6. The air purifier of claim 1, wherein, A guide plate (13) is provided between the air inlet grille (3) and the first group of ultraviolet devices (7) to protect the coarse filter (5) so that the airflow must pass through the coarse filter (5).

7. The air purifier of claim 1, wherein, The lower end of the coarse filter (5) is connected to the output shaft of the drive (12), and the drive (12) is used to drive the coarse filter (5) to rotate.

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