Air purifier with sterilization function

Abstract

The utility model belongs to the technical field of air purifiers, and particularly relates to an air purifier with a sterilization function, which comprises an upper shell and an air inlet lower shell arranged below the upper shell, a partition plate is arranged at the bottom in the upper shell, an air inlet protruding part is arranged in the middle of the bottom end of the partition plate, and an air outlet protruding part is arranged in the middle of the air inlet protruding part. Arc-shaped supporting plates are installed at the bottom end of the air inlet protruding part at equal intervals, and lamp holders are installed at the bottoms of the multiple arc-shaped supporting plates. When the air purifier is used, particulate matter carried in air flow can be filtered through the dust filter screen, formaldehyde in the air flow can be removed through cooperative use of the ultraviolet lamp tube and the amethyst catalysis filter screen, and the air purifier can be sterilized through cooperative use of the PWM module and the plasma sterilization module. According to the air purifier, by arranging the air inlet and the air outlet, bacteria carried in air flow can be sterilized, peculiar smells in the air flow can be adsorbed and removed through the activated carbon filter screen, and therefore the using effect of the air purifier can be improved, and using of the air purifier is facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of air purifier technology, specifically relating to an air purifier with sterilization function. Background Technology

[0002] An air purifier is a device that can adsorb, decompose, or transform various air pollutants (generally including dust, pollen, odors, bacteria, allergens, and indoor pollutants such as formaldehyde). Air purifiers can effectively improve air cleanliness.

[0003] Common air purifiers can only remove indoor dust and formaldehyde, and their effects are relatively limited and need improvement. Based on this, this utility model provides an air purifier with sterilization function. Utility Model Content

[0004] To address the aforementioned problems in the existing technology, this utility model provides an air purifier with sterilization function, which has the advantage of good performance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an air purifier with sterilization function, comprising an upper shell and an air intake lower shell installed below the upper shell, a partition plate is provided at the bottom of the upper shell, an air intake protrusion is provided at the middle of the bottom end of the partition plate, arc-shaped support plates are equidistantly installed at the bottom end of the air intake protrusion, lamp holders are installed at the bottom of multiple arc-shaped support plates, ultraviolet lamps are installed inside the lamp holders, a purple crystal catalytic filter is installed at the bottom end of the partition plate outside the air intake protrusion, a dust filter is installed at the bottom end of the partition plate outside the purple crystal catalytic filter, an inverter is installed on one side of the top end of the partition plate, a PWM module is installed on the other side of the top end of the partition plate, and a control panel is installed on one side of the outer wall of the upper shell;

[0006] A fixed base is provided in the middle of the upper shell, an axial flow fan is installed inside the fixed base, a ceramic insulating base is installed at the bottom of the fixed base, a plasma sterilization module is installed inside the ceramic insulating base, an activated manganese oxide filter is installed at the top of the upper shell, an activated carbon filter is installed above the activated manganese oxide filter, and a breathable top cover is installed above the activated carbon filter.

[0007] As a preferred technical solution of the present invention for an air purifier with sterilization function, an annular protrusion is provided on the top of the inner wall of the upper housing, and a top internal thread is provided on the top of the inner wall of the upper housing above the annular protrusion, and a bottom internal thread is provided on the bottom of the inner wall of the upper housing below the partition plate.

[0008] As a preferred technical solution of the present invention for an air purifier with sterilization function, the lower air intake housing has air intake holes equidistantly opened on the outer wall, the bottom of the lower air intake housing has an inner concave boss, the top center of the inner concave boss has a support column, the top of the outer wall of the lower air intake housing has a connecting protrusion, the outer wall of the connecting protrusion has a first external thread, and the first external thread and the bottom internal thread are connected by a thread.

[0009] As a preferred technical solution of the present invention for an air purifier with sterilization function, a first annular plate is provided at the bottom end of the partition plate near the air inlet protrusion, and a second annular plate is provided at the bottom end of the partition plate near the first annular plate.

[0010] As a preferred technical solution of the present invention for an air purifier with sterilization function, the cross-sectional dimensions of the annular space formed by the air inlet protrusion and the first annular plate are adapted to the cross-sectional dimensions of the top of the purple crystal catalytic filter.

[0011] As a preferred technical solution of the air purifier with sterilization function according to this utility model, the cross-sectional dimensions of the annular space formed by the first annular plate and the second annular plate are adapted to the cross-sectional dimensions of the top of the dust filter.

[0012] As a preferred technical solution of the present invention for an air purifier with sterilization function, the bottom end of the ventilated top cover is provided with an annular stop, the outer wall of the annular stop is provided with a No. 2 external thread, and the No. 2 external thread and the top internal thread are connected by a thread.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This air purifier effectively filters particulate matter from the airflow using a dust filter, removes formaldehyde through the combination of a UV lamp and a purple crystal catalytic filter, sterilizes bacteria through the combination of a PWM module and a plasma sterilization module, and adsorbs and removes odors through an activated carbon filter. The purifier's design is also efficient; the dust filter, purple crystal catalytic filter, and UV lamp can be replaced by removing the lower air intake housing, and the activated carbon filter, activated manganese oxide filter, and electrical components mounted on the top of the upper housing can be replaced by removing the vent top cover. Maintenance is convenient and easy to use. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is an exploded view showing the installation of the dust filter screen of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the lower air intake housing of this utility model;

[0020] Figure 5 This is an exploded view of the installation of the plasma sterilization module of this utility model;

[0021] Figure 6 This is an exploded view of the installation of the axial flow fan of this utility model.

[0022] In the diagram: 1. Upper housing; 2. Lower air intake housing; 3. Partition plate; 4. Air intake protrusion; 5. Arc-shaped support plate; 6. Lamp holder; 7. Ultraviolet lamp tube; 8. Purple crystal catalytic filter; 9. Dust filter; 10. Mounting base; 11. Axial flow fan; 12. Annular protrusion; 13. Activated manganese oxide filter; 14. Activated carbon filter; 15. Ventilated top cover; 16. Control panel; 17. Inverter; 18. PWM module; 19. Ceramic insulating base; 20. Plasma sterilization module; 21. Air inlet; 22. Annular retaining plate No. 1; 23. Annular retaining plate No. 2. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0024] Please see Figures 1-6This utility model provides the following technical solution: an air purifier with sterilization function, comprising an upper shell 1 and an air inlet lower shell 2. A partition plate 3 is provided at the bottom of the upper shell 1. Bottom internal threads are provided on the bottom of the inner wall of the upper shell 1 below the partition plate 3. An air inlet protrusion 4 is provided at the center of the bottom end of the partition plate 3. Arc-shaped support plates 5 are equidistantly installed at the bottom end of the air inlet protrusion 4. Lamp holders 6 are installed at the bottom of the multiple arc-shaped support plates 5. The arc-shaped support plates 5 and lamp holders 6 are integrally injection molded with the air inlet protrusion 4. An ultraviolet lamp tube 7 is installed inside the lamp holder 6. A first annular plate 22 is provided at the bottom end of plate 3 near the air inlet protrusion 4. A purple crystal catalytic filter 8 is installed inside the annular space formed by the air inlet protrusion 4 and the first annular plate 22. A second annular plate 23 is provided at the bottom end of partition plate 3 near the first annular plate 22. A dust filter 9 is installed inside the annular space formed by the first annular plate 22 and the second annular plate 23. An inverter 17 is installed on one side of the top of partition plate 3. A PWM module 18 is installed on the other side of the top of partition plate 3. A control panel 16 is installed on one side of the outer wall of the upper housing 1.

[0025] An air intake lower housing 2 is installed below the upper housing 1. A connecting protrusion is provided on the top of the outer wall of the air intake lower housing 2. The outer wall of the connecting protrusion is provided with a No. 1 external thread. The No. 1 external thread and the bottom internal thread are connected by threads to facilitate the installation and fixation between the air intake lower housing 2 and the upper housing 1. Air intake holes 21 are provided at equal intervals on the outer wall of the air intake lower housing 2. An inner concave boss is provided at the bottom of the inner concave boss. A support column is provided at the middle of the top of the inner concave boss. The top of the inner concave boss contacts the bottom of the dust filter screen 9. The top of the support column contacts the bottom of the purple crystal catalytic filter screen 8.

[0026] A fixed seat 10 is provided in the middle of the upper shell 1. An axial flow fan 11 is fixedly installed inside the fixed seat 10. A ceramic insulating seat 19 is fixedly installed at the bottom of the fixed seat 10. A plasma sterilization module 20 is fixedly installed inside the ceramic insulating seat 19. An annular protrusion 12 is provided at the top of the inner wall of the upper shell 1. A top internal thread is provided above the annular protrusion 12 on the top of the inner wall of the upper shell 1. An activated manganese oxide filter 13 is installed above the annular protrusion 12. An activated carbon filter 14 is installed above the activated manganese oxide filter 13. A ventilated top cover 15 is installed above the activated carbon filter 14. An annular stop is provided at the bottom of the ventilated top cover 15. A second external thread is provided on the outer wall of the annular stop. The second external thread and the top internal thread are connected by threads to facilitate the fixed use of the ventilated top cover 15.

[0027] It should be noted that the main wavelength of the ultraviolet lamp 7 is 405nm, and the input terminal of the ultraviolet lamp 7 is electrically connected to the output terminal of the control panel 16.

[0028] It should be noted that the input terminal of the axial fan 11 is electrically connected to the output terminal of the control panel 16.

[0029] It should be noted that inverter 17 can convert AC mains power into DC power, and the output terminal of inverter 17 is electrically connected to the input terminal of control panel 16.

[0030] It should be noted that the PWM module 18 can output a 15kV voltage. The output terminal of the PWM module 18 is electrically connected to the input terminal of the plasma sterilization module 20. The input terminal of the PWM module 18 is electrically connected to the output terminal of the control panel 16. The plasma sterilization module 20 is made of 316L stainless steel.

[0031] It should also be noted that the axial fan 11, ultraviolet lamp 7, control panel 16, inverter 17 and PWM module 18 are all existing technology equipment, and their specific models need to be determined based on production costs. Therefore, the specific models will not be described here.

[0032] Working principle and usage process of this utility model:

[0033] When the user turns on the air purifier, the axial fan 11, PWM module 18 and ultraviolet lamp 7 are activated. The axial fan 11 activates the airflow, which enters the air purifier through the air intake hole 21 provided in the lower air intake housing 2. The airflow is then discharged through the dust filter 9, the amethyst catalytic filter 8, the activated manganese oxide filter 13, the activated carbon filter 14 and the breathable top cover 15.

[0034] By using the dust filter 9, particulate matter carried in the airflow can be filtered.

[0035] When the airflow passes through the amethyst catalytic filter 8 irradiated by the ultraviolet lamp 7, formaldehyde in the airflow can be removed, and the ultraviolet lamp 7 can be turned on independently to sterilize the air inside the air purifier.

[0036] Principle: Under 405nm ultraviolet light excitation, the purple crystal catalytic filter 8 generates strong oxidizing holes (h⁺) and electrons (e⁻), which decompose formaldehyde into CO2 + H2O;

[0037] When the PWM module 18 is working, it can ionize the air by the plasma sterilization module 20, thereby enabling sterilization.

[0038] Principle: The plasma sterilization module 20 ionizes the air under a high voltage of 15kV, generating high-energy electrons, ozone and hydroxyl radicals, which can directly destroy bacterial DNA / RNA;

[0039] When ozone carried in the airflow passes through the activated manganese oxide filter 13, the ozone can be decomposed into oxygen, thereby removing residual ozone.

[0040] By using activated carbon filter 14, odors in the airflow can be adsorbed, thereby reducing odors and making the air purifier easier to use.

[0041] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An air purifier with sterilization function, characterized in that: The device includes an upper housing (1) and an air intake lower housing (2) installed below the upper housing (1). A partition plate (3) is provided at the bottom of the upper housing (1). An air intake protrusion (4) is provided at the middle of the bottom end of the partition plate (3). Arc-shaped support plates (5) are installed at equal intervals at the bottom end of the air intake protrusion (4). A lamp holder (6) is installed at the bottom of multiple arc-shaped support plates (5). An ultraviolet lamp tube (7) is installed inside the lamp holder (6). A purple crystal catalytic filter (8) is installed at the bottom end of the partition plate (3) outside the air intake protrusion (4). A dust filter (9) is installed at the bottom end of the partition plate (3) outside the purple crystal catalytic filter (8). An inverter (17) is installed on one side of the top of the partition plate (3). A PWM module (18) is installed on the other side of the top of the partition plate (3). A control panel (16) is installed on one side of the outer wall of the upper housing (1). A fixed seat (10) is provided in the middle of the upper shell (1). An axial flow fan (11) is installed inside the fixed seat (10). A ceramic insulating seat (19) is installed at the bottom of the fixed seat (10). A plasma sterilization module (20) is installed inside the ceramic insulating seat (19). An activated manganese oxide filter (13) is installed at the top of the upper shell (1). An activated carbon filter (14) is installed above the activated manganese oxide filter (13). A breathable top cover (15) is installed above the activated carbon filter (14).

2. An air purifier with sterilization function according to claim 1, characterized in that: The top of the inner wall of the upper housing (1) is provided with an annular protrusion (12), and the top of the inner wall of the upper housing (1) above the annular protrusion (12) is provided with a top internal thread, and the bottom of the inner wall of the upper housing (1) below the partition plate (3) is provided with a bottom internal thread.

3. An air purifier with sterilization function according to claim 2, characterized in that: The lower intake housing (2) has air inlet holes (21) equidistantly opened on the outer wall. The bottom of the lower intake housing (2) has an inner concave boss. The top of the inner concave boss has a support column. The top of the outer wall of the lower intake housing (2) has a connecting protrusion. The outer wall of the connecting protrusion has a No. 1 external thread. The No. 1 external thread and the bottom internal thread are connected by a thread.

4. An air purifier with sterilization function according to claim 1, characterized in that: A first annular plate (22) is provided at the bottom end of the partition plate (3) near the air inlet protrusion (4), and a second annular plate (23) is provided at the bottom end of the partition plate (3) near the first annular plate (22).

5. An air purifier with sterilization function according to claim 4, characterized in that: The cross-sectional dimensions of the annular space formed by the air inlet protrusion (4) and the first annular plate (22) are compatible with the cross-sectional dimensions of the top of the purple crystal catalytic filter (8).

6. An air purifier with sterilization function according to claim 4, characterized in that: The cross-sectional dimensions of the annular space formed by the first annular plate (22) and the second annular plate (23) are compatible with the cross-sectional dimensions of the top of the dust filter (9).

7. An air purifier with sterilization function according to claim 2, characterized in that: The bottom end of the ventilated top cover (15) is provided with an annular stop, and the outer wall of the annular stop is provided with a No. 2 external thread. The No. 2 external thread and the top internal thread are connected by a thread.

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