Air purification device

Abstract

The invention relates to the technical field of air purification, and discloses an air purification device which comprises a shell, an air inlet, an air outlet, an air inlet and an air outlet. The filter screen is cylindrical; when the main fan works, air enters from the air inlet hole and is exhausted from the air outlet hole after penetrating through the filter screen; the chassis is arranged at the bottom of the filter screen; the sterilization and deodorization module is installed on the chassis and located on the inner side of the filter screen, the sterilization and deodorization module comprises a shell, the shell is provided with an air inlet and an air outlet, and an air channel communicating the air inlet with the air outlet is formed in the shell; the plasma module is arranged in the air duct; the fan is arranged in the air duct; and the sterilization module is arranged on the shell. When the fan works, peculiar smell molecules in the space and on the filter screen enter the shell through the air inlet of the shell and pass through the discharge area of the plasma module, peculiar smell can be effectively removed, and human body health is protected. The sterilization module is arranged on the shell and can sterilize the filter screen.

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] With the continuous development of the pet economy, more and more pet products have emerged on the market, and pet purifiers are one of them. The main purpose of pet purifiers is to help reduce problems such as pet hair, dandruff, and odors in the home, and improve indoor air quality. As the core component of pet purifiers, the filter device is often set at the bottom of the product or below the air duct, located in the middle position between the air inlet and the air outlet, effectively intercepting dust and bacteria in the air, and discharging clean air from the air outlet. During long-term use, especially in pet-owning families, there are many microorganisms and bacteria in the environment. Dust and bacteria adhere to the surface of the filter screen for a long time, and over time, microorganisms such as bacteria and molds will grow. When these microorganisms decompose the organic matter carried in the air, odors will be generated. These generated odor molecules can be blown out from the air outlet of the purifier along the air duct when the user uses the air purifier, causing trouble to the user and endangering the physical health of the human body. Summary of the Invention

[0003] In view of this, the present invention provides an air purification device to solve the problem of filter screen odor.

[0004] The present invention provides an air purification device, comprising: A housing having an air inlet hole and an air outlet hole; A filter screen, which is cylindrical; A main fan, which makes air enter from the air inlet hole during operation, pass through the filter screen, and then be discharged from the air outlet hole; A chassis, which is arranged at the bottom of the filter screen; A sterilization and odor removal module, which is installed on the chassis and located inside the filter screen, and comprises: A housing, which has an air inlet and an air outlet, and a air duct communicating the air inlet and the air outlet is formed inside the housing; A plasma module, which is arranged in the air duct; A fan, which is arranged in the air duct; A sterilization module, which is arranged in the housing.

[0005] Advantageous Effects: The plasma module can generate a large amount of plasma during operation. Plasma is a highly ionized gas containing a large amount of active substances, such as free radicals (OH·, O·), ozone (O 3）And hydrogen peroxide (H2O2), etc. These active particles have strong oxidation ability and can react with odor molecules, decomposing them into harmless small molecules such as water and carbon dioxide. When the fan works, the odor molecules in the space and on the filter net enter the interior of the housing through the air inlet of the housing and pass through the discharge area of the plasma module, enabling effective removal of odors and protecting human health. In addition, the plasma generated by the plasma module can also flow out from the air outlet under the action of the fan and flow to the inner surface of the filter net to remove odors from the filter net. The fan can circulate the air inside the filter net to improve the odor removal effect. By setting a sterilization module in the housing, the sterilization module can sterilize the filter net. The sterilization and odor removal module can prevent the odors and bacteria on the filter net from harming human health, and integrating the plasma module and the sterilization module into one body through the housing can reduce the number of components. This air purification device can achieve odor removal and sterilization of the air in the filter net and the space.

[0006] In an alternative embodiment, the sterilization module includes a plurality of UV lamps evenly distributed circumferentially. In the height direction, the centers of the UV lamps are adapted to be flush with the center of the filter net.

[0007] Advantageous effects: The sterilization module includes a plurality of UV lamps evenly distributed circumferentially. The UV lamps emit UV light that can irradiate the inner surface of the filter net. The arrangement of the plurality of UV lamps can irradiate and sterilize the inner surface of the filter net in all directions. In the height direction, the centers of the UV lamps are adapted to be flush with the center of the filter net, which can ensure that in the height direction, the inner surface of the filter net is irradiated and sterilized in all directions.

[0008] In an alternative embodiment, the UV lamps are installed inside the housing, and the housing is provided with a light-transmitting part for the light to pass through.

[0009] Advantageous effects: By installing the UV lamps inside the housing and the plasma module is also installed inside the housing, the sterilization module and the plasma module can be integrated in the housing, reducing the number of components, and the housing can also protect the UV lamps.

[0010] In an alternative embodiment, the housing includes a lower cavity, an intermediate cavity, and an upper cavity. The side wall of the lower cavity is provided with the air inlet, the fan is arranged in the lower cavity, the plasma module is arranged in the intermediate cavity, and the UV lamps are arranged in the upper cavity.

[0011] Advantageous effects: The fan is arranged in the lower cavity. When the fan works, the odor molecules in the space and on the filter net enter the lower cavity through the air inlet of the housing and then enter the upper cavity upward, passing through the discharge area of the plasma module, enabling effective removal of odors and protecting human health. By arranging the UV lamps in the upper cavity, the position of the UV lamps in the height direction can be located at or near the midpoint of the filter net, thus achieving all-round sterilization.

[0012] In an alternative embodiment, the UV lamp is provided on the inner wall of the upper cavity, and the upper cavity is provided with a light-transmitting portion.

[0013] Advantageous effects: The UV lamp is provided on the inner wall of the upper cavity, so the emitted light is closer to the filter screen, thus achieving full-round sterilization.

[0014] In an alternative embodiment, the UV lamp is limited by the first buckle and / or rib.

[0015] Advantageous effects: The UV lamp is limited by the first buckle and / or rib, without screws, which is more convenient for the installation of the UV lamp.

[0016] In an alternative embodiment, in the cross-section along the first direction, the width of the lower cavity is greater than the width of the upper cavity, and the width of the upper cavity is greater than the width of the middle cavity.

[0017] Advantageous effects: Since the widths of the upper cavity and the middle cavity are smaller than the width of the lower cavity, when the sterilization and deodorization module is installed inside the filter screen, the resistance to air flow during the operation of the air purification device can be reduced. Since the width of the upper cavity is greater than the width of the middle cavity, the UV lamp can be relatively closer to the inner surface of the filter screen to ensure the sterilization effect on the inner surface of the filter screen. And since the width of the middle cavity is smaller, the air flow rate flowing out from the air outlet can be increased.

[0018] In an alternative embodiment, the air outlet is provided on the side wall of the middle cavity, and a barrier structure is provided between the middle cavity and the upper cavity.

[0019] Advantageous effects: A barrier structure is provided between the middle cavity and the upper cavity, which can ensure that the air flow flows out from the air outlet after being purified by the plasma module and will not flow to the sterilization module, and can ensure that the plasma generated by the plasma module flows out from the air outlet and flows to the inner surface of the filter screen to remove the odor of the filter screen.

[0020] In an alternative embodiment, a volute is provided in the air duct, the fan is provided in the volute, and the plasma module is provided at the air outlet end of the volute.

[0021] Advantageous effects: The fan is arranged in the volute, and the plasma module is arranged at the air outlet end of the volute. When the fan works, the odor molecules in the space and on the filter screen enter the interior of the volute through the air inlet of the housing, and after flowing out of the volute, pass through the plasma module, so that the odor can be effectively removed, protecting human health. The plasma module is arranged at the air outlet end of the volute can ensure that the air flow passes through the plasma module to ensure the deodorization effect.

[0022] In an alternative embodiment, the housing includes a left half-shell and a right half-shell, and the left half-shell and the right half-shell are butted against each other.

[0023] Advantageous effects: The housing includes a left half-shell and a right half-shell, which facilitates the installation of the sterilization module, the plasma module, and the blower inside the housing.

[0024] In an alternative embodiment, the bottom of the housing is connected to the chassis by screws and second buckles.

[0025] Advantageous effects: Since the bottom of the housing is connected to the chassis by screws and second buckles, when fixing the sterilization and deodorization module, the bottom of the housing and the chassis can be first connected by the second buckles, and then the entire air purification device is turned over to drive screws from the chassis. The second buckles can prevent the sterilization and deodorization module from falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 A cross-sectional view of a sterilization and deodorization module according to an embodiment of the present invention; Figure 2 A cross-sectional view of a sterilization and deodorization module according to an embodiment of the present invention at a cross-section along a first direction; Figure 3 A cross-sectional view of a sterilization and deodorization module according to an embodiment of the present invention at a cross-section along a second direction; Figure 4 For Figure 2 A schematic structural view of the left half-shell in Figure 5 For Figure 2 A schematic structural view of the right half-shell in Figure 6 A cross-sectional view of an air purification device according to an embodiment of the present invention at a cross-section along a first direction; Figure 7 A cross-sectional view of an air purification device according to an embodiment of the present invention at a cross-section along a second direction; Figure 8 An exploded view of a partial structure of an air purification device according to an embodiment of the present invention; Figure 9 A top cross-sectional view of an air purification device according to an embodiment of the present invention; Figure 10This is a cross-sectional view of a partial structure of an air purification device according to an embodiment of the present invention at a cross-section along a first direction.

[0028] Explanation of reference numerals: 1. Housing; 101. Left half shell; 102. Right half shell; 103. Air inlet; 104. Air outlet; 105. Lower cavity; 106. Intermediate cavity; 107. Upper cavity; 108. First buckle; 109. Limit rib; 110. Barrier structure; 2. Plasma module; 3. Fan; 4. UV lamp; 5. Volute; 6. Filter; 7. Chassis; 8. Screw; 9. Second buckle. Detailed implementation manners

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0031] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. 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.

[0032] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0033] With the continuous development of the pet economy, more and more pet products have emerged in the market, and pet purifiers are one of them. The main purpose of pet purifiers is to help reduce problems such as pet hair, dander and odor in the home and improve indoor air quality. As the core component of the pet purifier, the filter device is often set at the bottom of the product or below the air duct, located in the middle of the air inlet and outlet, effectively intercepting dust and bacteria in the air and discharging clean air from the air outlet. During long-term use, especially in pet-raising families, there are many microorganisms and bacteria in the environment. Dust and bacteria adhere to the surface of the filter for a long time. Over time, bacteria, mold and other microorganisms will breed. These microorganisms will produce odors when they decompose organic matter carried in the air. These odor molecules can be blown out from the air outlet of the purifier along the air duct when the user uses the air purifier, causing trouble for the user and endangering human health.

[0034] Combine the following Figures 1 to 10 , describing an embodiment of the present invention.

[0035] According to an embodiment of the present invention, on the one hand, a sterilization and deodorization module is provided, which is suitable for being installed on the inner side of a cylindrical filter 6, and includes a housing 1, a plasma module 2, a fan 3 and a sterilization module.

[0036] The shell 1 has an air inlet 103 and an air outlet 104 , and an air duct connecting the air inlet 103 and the air outlet 104 is formed inside the shell 1 ; the plasma module 2 is arranged in the air duct; the fan 3 is arranged in the air duct; and the sterilization module is arranged in the shell 1 .

[0037] In this embodiment, the plasma module 2 can generate a large amount of plasma when it is working. Plasma is a highly ionized gas containing a large amount of active substances, such as free radicals (OH·, O·), ozone (O3) and hydrogen peroxide (H2O2). These active particles have strong oxidizing ability and can react with odor molecules to decompose them into harmless small molecules, such as water and carbon dioxide. When the fan 3 is working, the odor molecules in the space and on the filter 6 enter the interior of the housing 1 through the air inlet 103 of the housing 1, and pass through the discharge area of ​​the plasma module 2, which can effectively remove the odor and protect human health. In addition, the plasma generated by the plasma module 2 can also flow out from the air outlet 104 under the action of the fan 3 and flow to the inner surface of the filter 6 to remove the odor of the filter 6. The fan 3 can make the air circulate in the filter 6 to improve the odor removal effect. By arranging a sterilization module in the housing 1, the sterilization module can sterilize the filter 6. The sterilization and deodorization module can prevent the odor and bacteria of the filter 6 from harming human health, and the plasma module 2 and the sterilization module are integrated into one body through the housing 1, which can reduce the number of parts.

[0038] In one embodiment, the sterilization module includes a plurality of UV lamps 4 evenly distributed circumferentially. In the height direction, the centers of the UV lamps 4 are adapted to be flush with the center of the filter screen 6.

[0039] In this embodiment, the sterilization module includes a plurality of UV lamps 4 evenly distributed circumferentially. The UV lamps 4 emit UV light that can irradiate the inner surface of the filter screen 6. The arrangement of the plurality of UV lamps 4 can irradiate and sterilize the inner surface of the filter screen 6 in all directions. In the height direction, the centers of the UV lamps 4 are adapted to be flush with the center of the filter screen 6, which can ensure that in the height direction, the inner surface of the filter screen 6 is irradiated and sterilized in all directions.

[0040] Specifically, in one embodiment, a total of four UV lamps 4 are provided, and one UV lamp 4 is arranged every 90° circumferentially.

[0041] In an alternative embodiment, five or more UV lamps 4 can be provided.

[0042] The irradiation range of each UV lamp 4 can be 120° in both the height direction and the circumferential direction, so as to realize irradiating and sterilizing the inner surface of the filter screen 6 in all directions.

[0043] Specifically as Figure 10 shown, in the height direction, the irradiation range of the UV lamp 4 is 120°, which can cover the upper and lower ends of the filter screen 6. Therefore, it can be ensured that in the height direction, the inner surface of the filter screen 6 is irradiated and sterilized in all directions.

[0044] In one embodiment, the UV lamp 4 is installed inside the housing 1, and the housing 1 is provided with a light-transmitting part for the light to pass through.

[0045] In this embodiment, by installing the UV lamp 4 inside the housing 1 and also installing the plasma module 2 inside the housing 1, the sterilization module and the plasma module 2 can both be integrated in the housing 1, reducing the number of components, and the housing 1 can also protect the UV lamp 4.

[0046] Specifically, in one embodiment, the housing 1 is essentially a lamp holder for installing the UV lamp 4, and the space inside the lamp holder is used to install the plasma module 2, reducing the number of components.

[0047] In an embodiment not shown in the figure, it can be considered to install the UV lamp 4 on the outer periphery of the housing 1.

[0048] In one embodiment, as Figure 2 shown, the housing 1 includes a lower cavity 105, an intermediate cavity 106, and an upper cavity 107. The side wall of the lower cavity 105 is provided with an air inlet 103. The fan 3 is arranged in the lower cavity 105, the plasma module 2 is arranged in the intermediate cavity 106, and the UV lamp 4 is arranged in the upper cavity 107.

[0049] In this embodiment, the fan 3 is disposed in the lower cavity 105. When the fan 3 operates, the odor molecules in the space and on the filter screen 6 enter the lower cavity 105 through the air inlet 103 of the housing 1, and then enter the middle cavity 106 upward. After passing through the discharge area of the plasma module 2, effective removal of odors can be achieved, protecting human health. By disposing the UV lamp 4 in the upper cavity 107, the position of the UV lamp 4 in the height direction can be located at or near the midpoint of the filter screen 6, thereby achieving all-round sterilization.

[0050] In one embodiment, the UV lamp 4 is disposed on the inner wall of the upper cavity 107, and the upper cavity 107 is provided with a light-transmitting portion.

[0051] In this embodiment, the UV lamp 4 is disposed on the inner wall of the upper cavity 107, so the emitted light is closer to the filter screen 6, thereby achieving all-round sterilization.

[0052] In one embodiment, the UV lamp 4 is limited by a buckle and / or a rib.

[0053] In this embodiment, the UV lamp 4 is limited by a buckle and / or a rib, without screws, which is more convenient for installing the UV lamp 4.

[0054] Specifically, in one embodiment, as Figure 3 shown, a support rib is provided on the left side of the UV lamp 4, two support ribs are provided on the right side, a first buckle 108 is provided on the right side, and an L-shaped support rib is provided at the upper left corner. The UV lamp 4 is located and limited by the support ribs and the first buckle 108.

[0055] Specifically, in one embodiment, as Figure 4 shown, two support ribs are provided on both the left and right sides of the UV lamp 4. The UV lamp 4 is limited by the support ribs on both the left and right sides, and the support ribs on both the left and right sides press the UV lamp 4 tightly.

[0056] In an embodiment not shown in the figure, the UV lamp 4 can be provided with first buckles 108 on both the left and right sides and the lower side, and is limited by the first buckles 108.

[0057] In one embodiment, in the cross-section along the first direction, the width of the lower cavity 105 is greater than the width of the upper cavity 107, and the width of the upper cavity 107 is greater than the width of the middle cavity 106.

[0058] In this embodiment, since the widths of the upper cavity 107 and the middle cavity 106 are smaller than the width of the lower cavity 105, when the sterilization and deodorization module is installed inside the filter screen 6, the resistance to air flow during the operation of the air purification device can be reduced. Since the width of the upper cavity 107 is greater than the width of the middle cavity 106, the UV lamp 4 can be relatively closer to the inner surface of the filter screen 6, ensuring the sterilization effect on the inner surface of the filter screen 6. And since the width of the middle cavity 106 is smaller, the air flow velocity flowing out from the air outlet 104 can be increased.

[0059] It should be noted that the cross-section in the first direction refers to the plane where the longitudinal cross-section of the fan 3 is located.

[0060] Specifically, in one embodiment, as Figure 3 shown, in the cross-section along the second direction, the width of the lower section of the middle cavity 106 is the same as the width of the lower cavity 105, and the width of the upper section of the middle cavity 106 gradually decreases from bottom to top.

[0061] The cross-section in the second direction specifically refers to the plane where the cross-section of the fan 3 is located.

[0062] In one embodiment, the air outlet 104 is provided on the side wall of the middle cavity 106, and a barrier structure 110 is provided between the middle cavity 106 and the upper cavity 107.

[0063] In this embodiment, a barrier structure 110 is provided between the middle cavity 106 and the upper cavity 107, which can ensure that the air flow flows out from the air outlet 104 after being purified by the plasma module 2 and will not flow to the sterilization module, and can ensure that the plasma generated by the plasma module 2 flows out from the air outlet 104 and flows to the inner surface of the filter screen 6 to remove the odor of the filter screen 6.

[0064] In this embodiment, a volute 5 is provided in the air duct, the fan 3 is provided in the volute 5, and the plasma module 2 is provided at the air outlet end of the volute 5.

[0065] In this embodiment, the fan 3 is arranged in the volute 5, and the plasma module 2 is arranged at the air outlet end of the volute 5. When the fan 3 operates, the odor molecules in the space and on the filter screen 6 enter the interior of the volute 5 through the air inlet 103 of the housing 1, and after flowing out from the volute 5, pass through the plasma module 2, so that the odor can be effectively removed, protecting the physical health of humans. The plasma module 2 being arranged at the air outlet end of the volute 5 can ensure that the air flow passes through the plasma module 2, ensuring the odor removal effect.

[0066] In one embodiment, the housing 1 includes a left half shell 101 and a right half shell 102, and the left half shell 101 and the right half shell 102 are butted.

[0067] In this embodiment, the housing 1 includes a left half-shell 101 and a right half-shell 102, which facilitates the installation of the sterilization module, the plasma module 2, and the fan 3 inside the housing 1.

[0068] Specifically, in one embodiment, the left half-shell 101 and the right half-shell 102 are substantially the same in shape or symmetrical.

[0069] It should be noted that the left half-shell 101 and the right half-shell 102 can be connected together in any manner.

[0070] According to an embodiment of the present invention, on the other hand, an air purification device is also provided, which includes a filter screen 6, a chassis 7, and the sterilization and deodorization module provided in the above embodiment.

[0071] Among them, the filter screen 6 is cylindrical; the chassis 7 is provided at the bottom of the filter screen 6; the sterilization and deodorization module is installed on the chassis 7 and located inside the filter screen 6.

[0072] In this embodiment, when the plasma module 2 operates, a large amount of plasma can be generated. Plasma is a highly ionized gas containing a large amount of active substances, such as free radicals (OH·, O·), ozone (O3), and hydrogen peroxide (H2O2), etc. These active particles have strong oxidation ability and can react with odor molecules, decomposing them into harmless small molecules, such as water and carbon dioxide, etc. When the fan 3 operates, the odor molecules in the space and on the filter screen 6 enter the interior of the housing 1 through the air inlet 103 of the housing 1 and pass through the discharge area of the plasma module 2, so as to effectively remove the odor and protect human health. In addition, the plasma generated by the plasma module 2 can also flow out from the air outlet 104 under the action of the fan 3 and flow to the inner surface of the filter screen 6 to remove the odor from the filter screen 6. The fan 3 can circulate the air inside the filter screen 6 to improve the odor removal effect. By providing a sterilization module in the housing 1, the sterilization module can sterilize the filter screen 6. Therefore, this air purification device can remove the odor and sterilize the air in the filter screen 6 and the space.

[0073] It should be noted that the air purification device has the functions of a conventional air purifier, including the main fan of the conventional air purifier. When the main fan operates, air can enter from the air inlet hole of the housing of the air purification device, pass through the filter screen 6, and finally discharge from the air outlet hole of the housing.

[0074] It should be noted that when removing the odor from the filter screen 6 alone, the main fan may not operate, and only the fan 3 operates to circulate the air inside the filter screen 6.

[0075] In one embodiment, the bottom of the housing 1 and the chassis 7 are connected by screws 8 and the second buckle 9.

[0076] In this embodiment, since the bottom of the housing 1 is connected to the chassis 7 by screws 8 and the second buckle 9, when fixing the sterilization and deodorization module, the bottom of the housing 1 and the chassis 7 can be first connected by the second buckle 9, and then the entire air purification device is turned over to drive the screws 8 from the chassis 7. The second buckle 9 can prevent the sterilization and deodorization module from falling off.

[0077] Specifically, in one embodiment, the bottom of the housing 1 and the chassis 7 can be connected only by one screw 8 and one second buckle 9.

[0078] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations fall within the scope defined by this application.

Claims

1. An air purification device, characterized in that, Comprising: A housing with an air inlet hole and an air outlet hole; A filter screen (6), which is cylindrical; A main blower, which makes air enter from the air inlet hole during operation, pass through the filter screen (6), and then be discharged from the air outlet hole; A chassis (7), which is arranged at the bottom of the filter screen (6); A sterilization and odor removal module, which is installed on the chassis (7) and located inside the filter screen (6), and comprises: A housing (1), which has an air inlet (103) and an air outlet (104), and a air duct communicating the air inlet (103) and the air outlet (104) is formed inside the housing (1); A plasma module (2), which is arranged in the air duct; A blower (3), which is arranged in the air duct; A sterilization module, which is arranged in the housing (1).

2. The air purification device according to claim 1, characterized in that, The sterilization module includes a plurality of UV lamps (4) evenly distributed along the circumference. In the height direction, the centers of the UV lamps (4) are adapted to be flush with the center of the filter screen (6).

3. The air purification device according to claim 2, characterized in that, The UV lamps (4) are installed inside the housing (1), and the housing (1) is provided with a light-transmitting part for the light to pass through.

4. The air purification device according to claim 2 or 3, characterized in that, The housing (1) includes a lower cavity (105), a middle cavity (106) and an upper cavity (107). The side wall of the lower cavity (105) is provided with the air inlet (103). The blower (3) is arranged in the lower cavity (105). The plasma module (2) is arranged in the middle cavity (106). The UV lamps (4) are arranged in the upper cavity (107).

5. The air purification device according to claim 4, characterized in that, The UV lamps (4) are arranged on the inner wall of the upper cavity (107), and the upper cavity (107) is provided with a light-transmitting part.

6. The air purification device according to claim 5, characterized in that, The UV lamps (4) are limited by the first buckle (108) and / or rib strips.

7. The air purification device according to claim 4, characterized in that In a cross-section along the first direction, the width of the lower cavity (105) is greater than the width of the upper cavity (107), and the width of the upper cavity (107) is greater than the width of the middle cavity (106).

8. The air purification device according to claim 4, wherein, The air outlet (104) is arranged on the side wall of the middle cavity (106), and a blocking structure (110) is arranged between the middle cavity (106) and the upper cavity (107).

9. The air purification device according to any one of claims 1 to 3, 5 to 8, characterized in that, A volute (5) is arranged in the air duct. The blower (3) is arranged in the volute (5), and the plasma module (2) is arranged at the air outlet end of the volute (5).

10. The air purification device according to any one of claims 1 to 3, 5 to 8, characterized in that, The housing (1) includes a left half-shell (101) and a right half-shell (102), and the left half-shell (101) and the right half-shell (102) are butted.

11. The air purification device according to any one of claims 1 to 3 and 5 to 8, characterized in that, The bottom of the housing (1) is connected to the chassis (7) by screws (8) and the second buckle (9).

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