Air purifier

Abstract

The application relates to the technical field of air purification equipment, and discloses an air purifier which comprises a shell and a deodorization module, the deodorization module is arranged on an airflow flow path between an air inlet and an air outlet, the deodorization module comprises a plasma generating device and an anti-overflow mesh cover, the plasma generating device can generate plasma to decompose peculiar smell in air through discharge, and the anti-overflow mesh cover is arranged on one side of the plasma generating device close to the air outlet and is used for preventing the plasma from overflowing outside. The plasma generating device can deeply decompose and treat residual peculiar smell in clean air about to be discharged, and can completely eliminate the peculiar smell. In addition, the anti-overflow mesh cover can effectively prevent excessive plasma from overflowing outside, can improve peculiar smell removal efficiency, can avoid potential safety hazards such as user contact or interference on surrounding equipment, can meet safety requirements, and can ensure use safety of the product.

Description

Technical Field

[0001] This invention relates to the field of air purification equipment technology, specifically to air purifiers. Background Technology

[0002] Air purifiers, as devices used to improve indoor air quality, typically use fans to drive airflow and internal filters to adsorb or transform pollutants. However, most existing air purifiers can only filter and purify pollutants in the air, or simply mask odors, and cannot completely remove odors from the air. Furthermore, the plasma odor removal method used in related technologies suffers from plasma overflow and low odor removal efficiency. Summary of the Invention

[0003] In view of this, the present invention provides an air purifier to solve the problems of plasma overflow and low odor removal efficiency in existing air purifiers that use plasma to remove odors.

[0004] This invention provides an air purifier, comprising:

[0005] The outer casing has an air inlet and an air outlet.

[0006] The deodorization module is located in the airflow path between the air inlet and the air outlet. The deodorization module includes a plasma generator and an anti-overflow mesh cover.

[0007] The plasma generator can generate plasma by discharging to decompose odors in the air. An overflow protection net is installed on the side of the plasma generator near the air outlet to prevent plasma from overflowing.

[0008] Beneficial Effects: The plasma generator produces high-density plasma, which catalytically degrades harmful gases through discharge. This deeply decomposes residual odors, formaldehyde, TVOCs, and other gaseous pollutants in the clean air being discharged, completely eliminating odors. This overcomes the limitations of traditional filters, which primarily target particulate matter and have limited efficiency in removing gaseous pollutants, thus expanding the air purifier's purification capabilities. The overflow shield placed near the air outlet of the plasma generator effectively prevents excessive plasma leakage, thus improving air purification efficiency and odor removal. It also avoids potential safety hazards, such as user contact or interference with surrounding equipment, meeting safety regulations and ensuring product safety.

[0009] In one optional embodiment, the plasma generating device includes a mounting frame and a plurality of electrode structures, the plurality of electrode structures being arranged at intervals on the mounting frame along the length direction of the mounting frame.

[0010] There is a discharge gap between two adjacent electrode structures and between the electrode structure and the mounting bracket to allow airflow.

[0011] Beneficial effects: By using multiple electrode structures spaced along the length of the mounting frame, a large plasma generation area can be formed, increasing the plasma reaction area and improving processing efficiency. Furthermore, the multiple electrode structures ensure that airflow passes through these dense discharge gaps as it flows from the inlet to the outlet, increasing the probability and time for pollutants to collide with high-energy plasma, resulting in more complete and efficient odor decomposition. In addition, the design of the discharge gaps allows for normal airflow, preventing excessive resistance to the air duct caused by overly dense structures, which could affect the overall airflow.

[0012] In one optional embodiment, the plasma generating apparatus further includes:

[0013] An elastic buffer is detachably mounted on a mounting bracket. An electrical limit groove is formed on the elastic buffer, and the two ends of the electrode structure are respectively limited and fixed in the electrical limit groove.

[0014] Beneficial Effects: The addition of elastic buffer components with electrical limit grooves on them supports and positions the electrode structure. Utilizing the high elasticity of the buffer components, the electrode structure is held in place, achieving a secure fixation. This also provides excellent shock absorption. When the device is subjected to transport vibrations or mechanical impacts during operation, the elastic buffer components effectively absorb and attenuate energy, significantly reducing the risk of cracks or fractures in the electrode structure (especially brittle ceramic insulating tubes) due to stress concentration, thus improving product reliability and service life. Furthermore, the elastic buffer components can be detachably installed onto the mounting frame, facilitating manufacturing and subsequent maintenance and replacement. In addition, the electrical limit grooves precisely limit and fix both ends of the electrode structure, ensuring the stability of the electrode structure position during use and preventing discharge instability or failure due to loosening.

[0015] In one optional embodiment, the plasma generating apparatus further includes:

[0016] The pressure plate is detachably connected to the mounting bracket and presses the elastic buffer firmly onto the mounting bracket.

[0017] Beneficial effects: The pressure plate ensures that the elastic buffer is always subjected to a clamping force close to the mounting bracket, making it fit tightly against the bracket and preventing the elastic buffer from bouncing off or loosening due to its own elastic recovery or external vibration, thus further improving the reliability of the fixation. Furthermore, the pressure plate and the mounting bracket are detachably connected, facilitating subsequent disassembly and maintenance.

[0018] In one optional implementation, the electrode structure includes:

[0019] Insulating tube;

[0020] The inner electrode is inserted inside the insulating tube;

[0021] The external electrode is spirally wound around the outside of the insulating tube;

[0022] A conductive sleeve is fixed and covers at least one end of the outer electrode, and the outer electrode is connected to a power source through the conductive sleeve.

[0023] Beneficial effects: The conductive sleeve is made of conductive material. The outer electrode is connected to the power source through the conductive sleeve. Since the outer electrode wrapped around the insulating tube is relatively thin, it is very difficult and unreliable to connect it directly to the power line. The conductive sleeve covering the end of the outer electrode provides a large-area, stable and reliable electrical connection point, which completely solves the problem of messy connection and unstable conduction at the tail of the existing outer electrode. In addition, the conductive sleeve can also reinforce and protect the inner insulating tube and the end of the outer electrode.

[0024] In one optional embodiment, the plasma generating apparatus further includes:

[0025] The low-voltage connection plate is fixedly connected to the conductive sleeve to form an electrical connection. The external electrode forms a conductive path with the power supply through the conductive sleeve and the low-voltage connection plate.

[0026] The high-voltage connection plate has one end of the inner electrode near the conductive sleeve extending out of the insulating tube, and forming a conductive path with the power supply through the high-voltage connection plate.

[0027] Beneficial Effects: By replacing the messy traditional welded wires with low-voltage and high-voltage connection boards, the electrical connections of all electrodes are integrated onto a single board, resulting in neat and standardized wiring, greatly simplifying the internal structure, and achieving standardized and modular electrical connections. Furthermore, the low-voltage and high-voltage connection boards provide clear and reliable interfaces with stable resistance, avoiding problems such as incomplete or missing welds that may occur with manual welding, ensuring the consistency and long-term reliability of the conductivity of all electrodes. Moreover, the low-voltage and high-voltage connection boards are connected to the electrode structure via plug-in or crimp connections, significantly improving assembly efficiency and reducing production costs and reliance on worker skills. In addition, by concentrating the electrical connections of the outer and inner electrodes on one side, all connection points can be fixed by epoxy resin potting on only one side. Single-sided potting is more convenient than existing double-sided potting, and it also effectively prevents the insulating tube from breaking due to stress compression from double-sided potting, thus improving process efficiency and ensuring the conductivity of the electrode structure.

[0028] In one optional embodiment, the air outlet includes a lower air outlet located at the bottom of the housing, and the air purifier further includes:

[0029] The lower fan assembly is located at the bottom of the housing, and the lower fan assembly includes a first fan and a first bracket for mounting the first fan.

[0030] The plasma generator is installed on the outer periphery of the first support and corresponds to the lower air outlet. The plasma generator and the first support enclose the lower air duct to form a lower air duct. The lower air duct connects the air inlet and the lower air outlet. The first fan is located inside the lower air duct.

[0031] Beneficial effects: By integrating the deodorization module with the downdraft fan assembly, the first bracket not only secures the fan but also serves as the mounting base for the duct wall and deodorization module. This achieves modular and integrated design of functional components, significantly saving internal space and making the overall layout more rational and compact, with higher space utilization. Furthermore, by placing the plasma generator directly within the downdraft duct and facing the downdraft outlet, it ensures that all air blown from the bottom passes through the plasma zone, guaranteeing the effectiveness and consistency of deodorization. Simultaneously, the downdraft duct design helps reduce airflow resistance, ensuring smooth airflow and volume.

[0032] In one alternative implementation, the lower air outlets are distributed on at least two sides of the housing;

[0033] The plasma generator is provided with at least two sets, and the air outlets of the at least two sets of plasma generators are located on at least two sides of the first bracket.

[0034] At least two sets of plasma generating devices are enclosed with the first support to form a downdraft duct that is closed at the bottom, draws air at the top, and discharges air from at least two sides.

[0035] Beneficial Effects: The bottom air outlet features a design with airflow from at least two sides, resulting in a wider airflow direction at the bottom. This allows for faster filling of the entire bottom space with clean air, reducing purification dead zones, improving air exchange efficiency, and achieving multi-directional and uniform bottom airflow. Furthermore, plasma generators are installed in multiple airflow directions, ensuring effective odor decomposition regardless of the airflow direction. This achieves full coverage of odor removal in the bottom airflow area, significantly enhancing the product's ability to handle complex odor environments. In addition, the "bottom-closed, top-suction, multi-directional airflow" duct structure formed by the plasma generator and the first support is highly efficient and rational, conforming to the working characteristics of a centrifugal fan. It effectively guides airflow, gathers purified air from the center, and evenly distributes it from multiple directions.

[0036] In one optional implementation, the first bracket is a frame structure, and an overflow opening is provided on one side of the first bracket corresponding to the lower air outlet.

[0037] A first slot is formed on the first support, and the plasma generator is inserted into the first slot, corresponding to the flow opening;

[0038] A second slot is also formed on the first support, which is located between the first slot and the lower air outlet. The overflow guard is inserted into the second slot, and both the plasma generator and the overflow guard can be supplied with airflow.

[0039] Beneficial effects: The frame-type first bracket adopts a first slot design, which facilitates the plug-and-play installation of the plasma generator as an independent module on the first bracket. This not only ensures a stable and reliable connection but also greatly simplifies the production and assembly process. It makes it easier for users or maintenance personnel to replace or maintain the plasma generator, reducing after-sales service costs and facilitating production and maintenance. In addition, the design of the first and second slots enables precise positioning, ensuring the accuracy and consistency of the installation position of the plasma generator and the overflow guard, so that its air outlet surface is precisely aligned with the flow opening on the bracket, ensuring smooth airflow.

[0040] In one alternative implementation, the overflow net is a metal mesh and is connected to the ground wire.

[0041] Beneficial effects: While intercepting plasma, the overflow guard, through its connection to the ground wire, provides an additional safe discharge channel. This allows any accumulated static charge or accidental leakage current to be safely conducted to the ground, enhancing safety and further reducing the risk of electric shock or other safety issues caused by charge accumulation. This makes the deodorization module's operation more stable and reliable. Furthermore, the metal guard itself has excellent conductivity and shielding properties, which can more effectively confine the plasma field.

[0042] In one alternative embodiment, an electrode mounting area is formed within the mounting frame of the plasma generator, through which airflow can pass, an electrode structure is mounted, and an overflow shield at least covers and shields the electrode mounting area.

[0043] Beneficial effects: The mounting frame provides a stable positioning and installation foundation for the electrodes. Airflow is guided through the electrode installation area formed by the mounting frame, where it undergoes plasma treatment, ensuring the stability and consistency of the discharge process and thus guaranteeing the deodorization effect. The anti-overflow mesh cover precisely shields the side of the electrode installation area near the air outlet, specifically covering the core discharge area. This achieves minimal interference with the airflow treatment effect while ensuring safety, thus achieving a balance between safety and efficiency.

[0044] In one optional implementation, the deodorization module further includes:

[0045] An ozone reduction net is installed between the overflow prevention net and the air outlet.

[0046] Beneficial effects: After plasma treatment and the anti-overflow mesh, the air passes through the ozone reduction mesh before being discharged, catalytically reducing any residual ozone to oxygen. This effectively avoids the leakage of trace amounts of ozone that may be generated by glow discharge, further improving the quality of the exhaust air, making the purification process more thorough and environmentally friendly, and eliminating users' concerns about ozone.

[0047] In one optional embodiment, the air inlet is located in the middle of the housing, and the air outlet also includes an upper air outlet located on the top of the housing.

[0048] Air purifiers also include:

[0049] The upper fan assembly is located at the top of the housing and is used to drive the outside air to flow from the air inlet to the air outlet.

[0050] Beneficial effects: By adopting a central air intake and top and bottom air outlet design, the problem of bottom air intake, which easily draws dust, hair, and other foreign objects from the ground directly into the filter and causes filter clogging, is effectively avoided. Furthermore, the purified air is simultaneously delivered from the top and bottom, creating a "surrounding" airflow purification path indoors, avoiding direct airflow interference. The upper and lower fan components together form a dual-fan drive system, allowing independent control of fan speed and start / stop. This provides the hardware foundation for achieving various purification modes, such as top-only air outlet, bottom-only air outlet, simultaneous top and bottom air outlet, powerful mode, and sleep mode, greatly enhancing the product's functional versatility and adaptability to different scenarios.

[0051] In one optional implementation, the air purifier further includes:

[0052] The display module is integrated and installed on the upper fan assembly, and the top of the housing is open to form the upper air outlet;

[0053] The top of the casing is open to form an upper air outlet, and an air outlet grille is installed inside the upper air outlet. The air outlet grille is circular, and a clearance opening is formed in the middle of the air outlet grille to allow the display module to be exposed.

[0054] Beneficial effects: By setting the air outlet grille to be ring-shaped, and the opening in the middle of the ring-shaped air outlet grille serving as a clearance opening for the display module to be exposed, the air outlet and display functions do not interfere with each other, while the clearance opening can also meet the heat dissipation requirements of the display module.

[0055] In one alternative implementation, the display module includes:

[0056] Display bracket, and display lights mounted on the display bracket;

[0057] The lampshade and the lamp holder for supporting the lampshade, the lampshade being made of crystal or crystal-like translucent material;

[0058] The display bracket passes at least partially through the lampshade and is detachably connected to the lamp holder to limit the lampshade between the display bracket and the lamp holder;

[0059] The indicator light is configured to emit light, and the light is able to shine onto the lampshade and be refracted and / or scattered by the lampshade.

[0060] Beneficial Effects: The air purifier's display module utilizes a lampshade made of crystal or crystal-like translucent material. This allows the light emitted from the display lamp to be refracted and / or scattered in all directions after hitting the lampshade, creating a soft, three-dimensional halo effect. This enhances the overall refined and high-end appearance of the unit, improving the product's visual quality and user experience. It also effectively prevents the display lamp's light from shining directly outwards, avoiding glare and user interference. Furthermore, this application employs a clamping design between the display bracket and the lamp holder for lampshade installation. This not only ensures a secure and stable installation but also avoids the risks associated with screw-based fixing methods, such as damaging the lampshade's integrity and causing stress cracks. It also simplifies lampshade installation and removal, facilitating cleaning and replacement and reducing maintenance costs.

[0061] In one optional implementation, the air purifier further includes:

[0062] A filtration module includes a filter support structure and a filter screen disposed at the air inlet. A filter screen mounting space is formed within the filter support structure, and the filter screen is rotatably mounted within the filter screen mounting space.

[0063] An ultraviolet sterilization module is installed on the filter support structure and located on one side of the filter, and is used to perform ultraviolet sterilization on the filter.

[0064] Beneficial effects: By rotatably mounting the filter screen on the filter screen support structure and placing the ultraviolet sterilization module on one side of the filter screen, the entire outer surface of the rotating filter screen can be uniformly irradiated with 360-degree light without dead angles for sterilization, ensuring the thoroughness and efficiency of sterilization and disinfection, effectively inhibiting the growth of bacteria, and ensuring the cleanliness and hygiene of the filter screen. Attached Figure Description

[0065] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0066] Figure 1 A schematic diagram of the external structure of the air purifier in an embodiment of the present invention;

[0067] Figure 2 This is a cross-sectional view of the air purifier in an embodiment of the present invention;

[0068] Figure 3 This is a cross-sectional view of the air purifier after the filter has been removed in an embodiment of the present invention;

[0069] Figure 4 for Figure 3 A magnified view of a portion of the image;

[0070] Figure 5 This is a schematic diagram of the airflow direction of the air purifier in an embodiment of the present invention;

[0071] Figure 6 This is an exploded view of the air purifier in an embodiment of the present invention;

[0072] Figure 7 This is a schematic diagram of the air purifier after removing the outer casing in an embodiment of the present invention;

[0073] Figure 8 for Figure 7 A schematic diagram of the structure after removing the filter screen;

[0074] Figure 9 This is an exploded view of the lower fan assembly, deodorization module, bottom light assembly, and support base in an embodiment of the present invention;

[0075] Figure 10 This is an exploded view of the upper fan assembly in an embodiment of the present invention;

[0076] Figure 11 This is an exploded view of the display module in an embodiment of the present invention;

[0077] Figure 12 This is a schematic diagram of the upper air outlet grille in an embodiment of the present invention;

[0078] Figure 13 This is a cross-sectional view of the display module in an embodiment of the present invention;

[0079] Figure 14 This is a cross-sectional view of the lamp holder in an embodiment of the present invention;

[0080] Figure 15 This is a schematic diagram of the bottom structure of the lampshade in an embodiment of the present invention;

[0081] Figure 16 This is a bottom view of the display bracket, display panel, and display lights assembled in an embodiment of the present invention;

[0082] Figure 17 This is an exploded view showing the bracket and decorative panel in an embodiment of the present invention;

[0083] Figure 18 This is a schematic diagram of one embodiment of the UV sterilization module and filter screen in this invention.

[0084] Figure 19 This is a schematic diagram of the ultraviolet sterilization module in an embodiment of the present invention;

[0085] Figure 20 This is a schematic diagram of the plasma generating device in an embodiment of the present invention;

[0086] Figure 21 for Figure 20 Exploded view;

[0087] Figure 22 for Figure 20 A schematic diagram of the structure after removing the top cover;

[0088] Figure 23 for Figure 22 A magnified view of a portion of the image;

[0089] Figure 24 This is a schematic diagram of the main structure of the mounting bracket in this embodiment;

[0090] Figure 25 for Figure 22 Another structural diagram from another angle;

[0091] Figure 26 for Figure 25 A magnified view of a portion of the image;

[0092] Figure 27 for Figure 22 A schematic diagram of the rear structure;

[0093] Figure 28 This is a schematic diagram of the electrode structure in an embodiment of the present invention;

[0094] Figure 29 This is a schematic diagram of the pressure plate structure in an embodiment of the present invention;

[0095] Figure 30 This is a schematic diagram of the structure of the elastic buffer in an embodiment of the present invention;

[0096] Figure 31This is a schematic diagram of the low-pressure connecting plate in an embodiment of the present invention;

[0097] Figure 32 This is a schematic diagram of the high-voltage connection plate in an embodiment of the present invention.

[0098] Explanation of reference numerals in the attached figures:

[0099] 10. Outer casing; 100. Air inlet; 101. Upper air outlet; 102. Lower air outlet; 11. Air inlet grille; 12. Air outlet grille; 13. Cover plate; 14. Formaldehyde sensor;

[0100] 21. Upper fan assembly; 211. Second fan; 2111. Second motor; 2112. Second fan blade; 212. Upper air duct; 213. Second support frame; 214. Negative ion generator;

[0101] 22. Downstream fan assembly; 221. First fan; 2211. First motor; 2212. First fan blade; 222. First bracket; 2220. Flow opening; 2221. First slot;

[0102] 30. Filtering module;

[0103] 31. Filter screen;

[0104] 32. Top support component;

[0105] 33. Bottom support components;

[0106] 34. Intermediate support frame;

[0107] 40. Dust removal device; 41. Dust collection base; 42. Dust collection assembly;

[0108] 50. Odor removal module;

[0109] 51. Plasma generator;

[0110] 511. Mounting bracket; 5111. Mounting bracket body; 51111. Slot; 51112. Cable routing channel; 51113. First limiting rib; 51114. Second limiting rib; 5112. Top cover; 5113. Bottom cover;

[0111] 512. Electrode structure; 5121. Inner electrode; 5122. Insulating tube; 5123. Outer electrode; 5124. Conductive sleeve; 5125. Insulating adhesive;

[0112] 513. Low-voltage connecting plate; 5131. Bayonet;

[0113] 514. High-voltage connection plate; 5141. Connection hole;

[0114] 515, Elastic buffer; 5151, Electrical limit groove; 5152, Through hole; 5153, First mating groove; 5154, Second mating groove;

[0115] 516. Pressure plate; 5161. Buckle;

[0116] 517. Wire;

[0117] 52. Overflow prevention netting; 53. Ozone reduction netting;

[0118] 60. Ultraviolet sterilization module; 61. Ultraviolet lamp; 62. Lamp holder; 63. First baffle; 64. Second baffle;

[0119] 70. Display module;

[0120] 71. Display bracket; 711. Support part; 7110. Light-transmitting opening; 712. Connecting part; 713. First positioning slot; 714. Rotary groove; 715. Locking groove;

[0121] 72. Lampshade; 721. Limiting rib;

[0122] 73. Lamp holder; 731. Positioning rib; 732. Limiting groove;

[0123] 74. Indicator lights;

[0124] 75. Decorative panel; 751. Turnbuckle; 752. Locking protrusion;

[0125] 76. Display panel;

[0126] 77. Air quality lamp;

[0127] 78. Lamp stand;

[0128] 79. Display panel;

[0129] 80. Support base;

[0130] 90. Bottom light assembly; 91. Light strip bracket; 92. Bottom ambient light strip. Detailed Implementation

[0131] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0132] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0133] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0134] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0135] The following is combined with Figures 1 to 32 The following describes embodiments of the present invention.

[0136] According to an embodiment of the present invention, in one aspect, the present invention provides an air purifier, including a housing 10 and an odor removal module 50. The housing 10 is provided with an air inlet 100 and an air outlet. The odor removal module 50 is disposed on the airflow path between the air inlet 100 and the air outlet. The odor removal module 50 includes a plasma generator 51 and an anti-overflow mesh cover 52. The plasma generator 51 can generate plasma by discharge to decompose odors in the air. The anti-overflow mesh cover 52 is disposed on the side of the plasma generator near the air outlet to prevent plasma from overflowing.

[0137] In the above embodiment, the plasma generator 51 generates high-density plasma, which catalytically degrades harmful gases through discharge. This deeply decomposes residual odors, formaldehyde, TVOCs, and other gaseous pollutants in the clean air to be discharged, completely eliminating odors. This overcomes the limitations of traditional filters, which primarily target particulate matter and have limited efficiency in removing gaseous pollutants, thus expanding the purification capabilities of the air purifier. The overflow shield 52, positioned on the side of the plasma generator 51 near the air outlet, effectively prevents excessive plasma overflow, thus improving air purification efficiency and odor removal efficiency. It also avoids potential safety hazards, such as user contact or interference with surrounding equipment, meeting safety regulations and ensuring product safety.

[0138] In some embodiments, the overflow shield 52 is a metal mesh and is connected to the ground wire. Through this design, the overflow shield 52, while intercepting plasma, provides an additional safe discharge channel by connecting to the ground wire. This allows any potentially accumulated static charge or accidental leakage current to be safely conducted to the ground, enhancing safety and further reducing the risk of electric shock or other safety problems caused by charge accumulation. This makes the deodorization module 50 operate more stably and reliably. Furthermore, the metal mesh itself has good conductivity and shielding properties, which can more effectively confine the plasma field.

[0139] Of course, in other alternative implementations, the spill containment mesh 52 can also be made of non-metallic materials, such as plastic mesh, to serve as a shield to prevent plasma spillage and provide safety protection.

[0140] In some embodiments, the plasma generating device 51 includes a mounting frame 511 and a plurality of electrode structures 512, the plurality of electrode structures 512 being arranged at intervals on the mounting frame 511 along the length direction of the mounting frame 511; there is a discharge gap between two adjacent electrode structures 512 and between the electrode structure 512 and the mounting frame 511 for gas flow.

[0141] In the above embodiment, multiple electrode structures 512 spaced apart along the length of the mounting frame 511 can form a large-area plasma generation zone, increasing the plasma reaction area and improving processing efficiency. Furthermore, the airflow passing through these dense discharge gaps from the inlet 100 to the outlet 102 increases the probability and time of contact and collision between pollutants and high-energy plasma, resulting in more complete and efficient odor decomposition. In addition, the design of the discharge gaps allows for normal airflow, preventing excessive resistance to the air duct due to overly dense structures, which could affect the overall airflow.

[0142] In some embodiments, the plasma generating device 51 includes a mounting frame 511, an electrode mounting area is formed in the mounting frame 511, an electrode structure 512 is mounted in the electrode mounting area, airflow can pass through the electrode mounting area, and an overflow protection mesh cover 52 shields and covers the electrode mounting area.

[0143] In the above embodiment, the mounting bracket 511 provides a stable positioning and mounting foundation for the electrodes. The airflow is guided through the electrode mounting area formed by the mounting bracket 511 and receives plasma treatment here, ensuring the stability and consistency of the discharge process, thereby guaranteeing the deodorization effect. The anti-overflow mesh cover 52 is precisely shielded on the side of the electrode mounting area near the air outlet. The anti-overflow mesh cover 52 specifically covers the core discharge area, achieving minimal interference to the airflow treatment effect while ensuring safety, thus achieving a balance between safety and efficiency.

[0144] In some embodiments, the deodorization module 50 further includes an ozone reduction mesh 53, which is disposed between the overflow cover 52 and the air outlet.

[0145] In the above embodiment, the air after plasma treatment and overflow prevention mesh 52 passes through ozone reduction mesh 53 before being discharged, catalytically reducing any residual ozone to oxygen. This effectively avoids the leakage of trace amounts of ozone that may be generated by glow discharge, further improving the quality of the exhaust air and making the purification process more thorough.

[0146] The following is in conjunction with the appendix Figure 9 , Figures 20 to 32 The specific structure and working principle of the plasma generator 51 in this embodiment will be introduced.

[0147] In some embodiments, the plasma generating device 51 includes a mounting frame 511, an electrode structure 512, and an elastic buffer 515. The mounting frame 511 forms an electrode mounting area. The electrode structure 512 is installed in the electrode mounting area. The electrode structure 512 includes an insulating tube 5122, an inner electrode 5121 passing through the insulating tube 5122, and an outer electrode 5123 spirally wound around the insulating tube 5122. The elastic buffer 515 is detachably mounted on the mounting frame 511. An electrical limit groove 5151 is formed on the elastic buffer 515. The two ends of the electrode structure 512 are respectively limited and fixed in the electrical limit groove 5151.

[0148] In the above embodiment, the added elastic buffer 515 and the electrical limit groove 5151 formed on the elastic buffer 515 support and position the electrode structure 512. Utilizing the high elasticity of the elastic buffer 515, the electrode structure 512 can be held in place by the elastic buffer 515, thus achieving a fixed position. It also provides good shock absorption for the electrode structure 512. When the device is subjected to transportation vibrations or mechanical impacts during operation, the elastic buffer 515 can effectively absorb and attenuate energy, significantly reducing the risk of cracks or breakage of the electrode structure 512 (especially brittle ceramic insulating tubes) due to stress concentration, thereby improving product reliability and service life. Furthermore, the elastic buffer 515 can be detachably installed onto the mounting bracket 511, facilitating manufacturing and subsequent maintenance and replacement. In addition, the electrical limit groove 5151 precisely limits and fixes both ends of the electrode structure 512, ensuring the stability of the electrode structure position during use of the plasma generator 51 and preventing discharge instability or failure due to loosening.

[0149] Based on the above embodiments, as a further defined embodiment, the mounting bracket 511 is a ring frame structure, and the middle area of ​​the ring frame structure is the electrode mounting area. The mounting bracket 511 can be frame-shaped, circular, polygonal, or other irregular shapes. The specific shape of the mounting bracket 511 can be set according to the actual assembly requirements.

[0150] Based on the above embodiments, as a further limited embodiment, the elastic buffer 515 can be a silicone part, a rubber part, a TPE part, a polyurethane part, or it can also be a composite structure, such as a spring assembly or an airbag part. This embodiment does not limit this.

[0151] Based on the above embodiments, as a further defined embodiment, the elastic buffer 515 can be fixed to the mounting bracket 511 by means of snap-fit, screw, plug-in, pressing, etc.

[0152] In some embodiments, the mounting bracket 511 includes two opposing frames, and two elastic buffers 515 are provided; the two elastic buffers 515 are respectively snapped and limited on the two frames, and the two ends of the electrode structure 512 are respectively limited in the electrical limit grooves 5151 of the two elastic buffers 515.

[0153] In the above embodiment, by mounting the electrode structure 512 on two opposite sides of the mounting bracket 511 and setting elastic buffers 515 on the two sides respectively, the electrode structure 512 can be supported and fixed from both ends at the same time, forming a stable "two-point support" structure, which effectively prevents the electrode from warping or shaking in the length direction, ensures its accurate position in the airflow channel, and ensures uniform and stable discharge effect.

[0154] Based on the above embodiments, as a further defined embodiment, the frame includes an upper frame and a lower frame spaced apart vertically, and the frame is a vertically arranged plate-like structure. An elastic buffer 515 is fixedly disposed on one side of the plate-like frame.

[0155] In some embodiments, the mounting bracket 511 includes a mounting bracket body 5111 and an upper cover 5112 and a lower cover 5113 disposed at the upper and lower ends of the mounting bracket body 5111. The mounting bracket body 5111 is annular, with an electrode mounting area formed in the middle of the mounting bracket body 5111. The electrode structure 512 is mounted on the mounting bracket body 5111. The mounting bracket body 5111 includes an upper frame and a lower frame, and two side frames connected to the upper and lower frames. The upper end of the electrode structure 512 is mounted on the upper frame, and the lower end is mounted on the lower frame. The upper cover 5112 and the lower cover 5113 of the mounting bracket 511 are fitted onto the upper and lower ends of the mounting bracket body 5111, and at least cover the electrode structure 512 and the elastic buffer member 515.

[0156] By installing upper covers 5112 and lower covers 5113 at the top and bottom of the mounting frame body 5111 respectively, the electrode structure 512, elastic buffer 515, pressure plate 516, high-voltage connection plate 514, and low-voltage connection plate 513 are completely enclosed, effectively preventing moisture, oil, dust, etc. from entering the interior, protecting the electrode structure 512 from corrosion, extending the service life of the equipment, and preventing accidental contact with live parts, thus improving the safety protection level of the equipment. They also provide cushioning protection, preventing the electrode structure 512, elastic buffer 515, pressure plate 516, high-voltage connection plate 514, and low-voltage connection plate 513 from loosening or being damaged by collisions with external components due to transportation bumps. Furthermore, the upper covers 5112 and lower covers 5113 fit tightly with the mounting frame body 5111, forming an integral structure that allows for the concealment of internal components, resulting in a simple and aesthetically pleasing appearance and enhancing the overall quality of the product. Furthermore, the clamp design of the upper cover 5112 and the lower cover 5113 facilitates quick installation and removal. When it is necessary to inspect or replace components such as the electrode structure 512 and the elastic buffer 515, it is only necessary to remove the upper cover 5112 or the lower cover 5113 without disassembling the entire mounting bracket 511, which greatly simplifies the maintenance process.

[0157] In some embodiments, a first limiting rib 51113 is provided on the frame, and the first limiting rib 51113 extends along the length direction of the frame; the elastic buffer member 515 is provided with a first mating groove 5153 that cooperates with the first limiting rib 51113; a second limiting rib 51114 is provided on the frame, and the second limiting rib 51114 extends along the width direction of the frame; the elastic buffer member 515 is provided with a second mating groove 5154 that cooperates with the second limiting rib 51114.

[0158] In the above embodiment, the first limiting rib 51113 arranged along the length direction of the frame and the second limiting rib 51114 arranged along the width direction of the frame, under the combined action of the first limiting rib 51113 and the second limiting rib 51114, limit the elastic buffer 515 from multiple dimensions, improve the stability of the elastic buffer 515 structure, ensure that the installation position of the elastic buffer 515 on the mounting bracket 511 is accurate, prevent the elastic buffer 515 from shifting or rotating during installation, play a role in precise positioning and error prevention, and thus ensure the positioning consistency of all electrodes. In addition, the groove and rib mating structure, while providing positioning, also increases the contact area and friction, making the connection between the elastic buffer 515 and the frame more firm, avoiding the possible loosening of the elastic buffer 515 and the mounting bracket 511 under long-term vibration environment, and enhancing the reliability of the connection between the elastic buffer 515 and the mounting bracket 511.

[0159] Based on the above embodiments, as a further defined embodiment, there are multiple second limiting ribs 51114, which are spaced apart along the length direction of the first limiting rib 51113. The first limiting rib 51113 is a long strip of rib arranged horizontally on the frame, and the second limiting ribs 51114 are ribs arranged vertically on the frame. The first limiting ribs 51113 and the second limiting ribs 51114 form a cross rib. The elastic buffer member 515 is a long strip structure that matches the length of the frame. The elastic buffer member 515 has a first mating groove 5153 and a second mating groove 5154 on the side near the frame.

[0160] In some embodiments, the elastic buffer 515 is a rubber strip, and the electrical limit groove 5151 is a U-shaped groove formed on one side of the rubber strip.

[0161] In the above embodiments, the elastic buffer 515 adopts a rubber strip structure, which is simple in structure and easy to install. The electrical limit groove 5151 adopts a U-shaped groove, which allows the electrode structure 512 to be easily inserted into the electrical limit groove 5151 from the side, making the assembly operation simple and quick. At the same time, the U-shaped structure has a certain degree of tolerance for the diameter of the electrode, and with the elasticity of the rubber strip, it can adapt to small dimensional tolerances to ensure the reliability of clamping. In addition, the U-shaped groove can wrap around the electrode from three directions. When subjected to impacts or vibrations from different directions, it can provide effective buffer protection through the deformation of the rubber strip, resulting in better cushioning and shock absorption.

[0162] Based on the above embodiments, as a further defined embodiment, the distance between the two opposite walls of the U-shaped groove is less than the size of the corresponding mounting part of the electrode structure 512, so as to achieve the limiting and fixing of the electrode structure 512 by means of interference fit.

[0163] In some embodiments, the first limiting rib 51113 is provided with a relief recess at the position corresponding to the electric limit groove 5151 of the elastic buffer 515. This design can play a role in relief and limiting when the elastic buffer 515 is squeezed by the pressure plate 516, thereby further improving the stability of the position of the electrode structure 512.

[0164] In some embodiments, the plasma generating device 51 further includes a pressure plate 516, which is detachably connected to the mounting frame 511 and presses the elastic buffer 515 tightly onto the mounting frame 511.

[0165] In the above embodiment, the pressure plate 516 ensures that the elastic buffer 515 is always subjected to a clamping force close to the mounting bracket 511, making it tightly fitted to the mounting bracket 511. This prevents the elastic buffer 515 from bouncing off or loosening from its mounting position due to its own elastic recovery or external vibration, further improving the reliability of the fixation. Furthermore, the pressure plate 516 and the mounting bracket 511 are detachably connected, facilitating subsequent disassembly and maintenance.

[0166] Based on the above embodiments, as a further defined embodiment, the elastic buffer 515 is located between the pressure plate 516 and the mounting bracket 511, and the pressure plate 516 can be connected to the mounting bracket 511 by screws or snap-fit.

[0167] Preferably, in this embodiment, the pressure plate 516 and the mounting bracket 511 are snapped together, so that the pressure plate 516 can be disassembled and assembled without the aid of external tools.

[0168] In some specific embodiments, the pressure plate 516 is provided with a buckle 5161, the mounting bracket 511 is provided with a slot 51111, and the elastic buffer 515 is provided with a through hole 5152. The buckle 5161 passes through the through hole 5152 and connects with the slot 51111.

[0169] In the above embodiment, the pressure plate 516 is connected and engaged with the mounting bracket 511 through the through hole 5152 of the elastic buffer 515 via a snap fastener 5161. This not only enables the assembly of the pressure plate 516, the elastic buffer 515, and the mounting bracket 511 into a single unit, but also ensures that the snap fastener 5161 of the pressure plate 516, after fastening the mounting bracket 511, exerts a squeezing effect on the elastic buffer 515. This causes the elastic buffer 515 to deform under pressure and firmly press against the electrode structure 512, thereby indirectly and effectively pressing and fixing the electrode structure 512. Furthermore, by using the snap fastener 5161 as the connection structure between the pressure plate 516 and the mounting bracket 511, the use of tools such as screwdrivers is eliminated, significantly improving assembly efficiency and making it very suitable for mass production. The snap fastener 5161 also has a certain holding force, effectively ensuring that the pressure plate 516 does not loosen under vibration.

[0170] Based on the above embodiments, as a further defined embodiment, the pressure plate 516 is provided with a plurality of buckles 5161 spaced apart along its length, and the fixing frame is provided with a plurality of slots 51111 correspondingly. The plurality of slots 51111 and the plurality of buckles 5161 are engaged one-to-one, further improving the fixing effect of the pressure plate 516. There are two pressure plates 516, and the two pressure plates 516 are respectively fixed at the upper and lower ends of the electrode structure 512.

[0171] Based on the above embodiments, as a further defined embodiment, the buckle 5161 has two oppositely arranged claws, which are correspondingly engaged and supported on the two opposite edges of the slot 51111, further improving the stability of the engagement.

[0172] In some embodiments, the electrode structure 512 has multiple sets, and the multiple sets of electrode structures 512 are spaced apart along the length direction of the mounting frame 511. The elastic buffer 515 is provided with multiple sets of electrical limit grooves 5151 corresponding to the multiple sets of electrode structures 512.

[0173] In the above embodiments, the parallel arrangement of multiple electrode structures 512 increases the total area of ​​glow discharge, thereby significantly improving air purification efficiency and processing capacity per unit time, meeting the needs of larger spaces or higher cleanliness levels. Furthermore, the spaced arrangement of multiple electrode structures 512 not only facilitates electrode installation but also promotes smooth airflow through the electrode area, reducing wind resistance and improving purification efficiency. Moreover, by creating multiple electrical limit slots 5151 on a single adhesive strip, multiple electrodes can be installed in parallel and at equal intervals, achieving a modular design for the multiple electrode structures 512. This ensures the neat and uniform arrangement and consistent spacing of the multiple electrode structures 512, promoting uniform electric field distribution, optimizing discharge performance, and resulting in a compact structure.

[0174] Based on the above embodiments, as a further defined embodiment, multiple sets of electrical limit grooves 5151 are formed on the same side of the elastic buffer 515, facilitating the installation of multiple sets of electrode structures 512 from one side. Specifically, the openings of the multiple sets of electrical limit grooves 5151 all face the same side. In this embodiment, the electrode structure 512 is firmly fixed to the mounting bracket 511 using a pressure plate 516 and adhesive strips, thus providing both fixing and shock absorption functions.

[0175] Based on the above embodiments, as a further defined embodiment, the overall module is stably fixed and the structure is compact by pressing the rubber strip and the multiple sets of electrode structures 512 installed on it with the pressure plate 516 in one go.

[0176] In some alternative embodiments, the snap-fit ​​5161 of the pressure plate 516 can be replaced with an elastic clamping structure. Specifically, the pressure plate 516 is provided with an elastic arm structure, which achieves the clamping and fixing of the electrode structure 512 by the deformation of the elastic arm, and the mounting bracket 511 is provided with a corresponding limiting groove to cooperate with the positioning of the elastic arm. This structure can achieve the connection between the pressure plate 516 and the mounting bracket 511 without drilling holes, further simplifying the assembly process and enhancing the sealing performance of the module.

[0177] Because the insulating tube 5122 needs to be resistant to breakdown and electrochemical corrosion, ceramic is the best choice. Therefore, in this embodiment, the insulating tube 5122 of the electrode structure 512 is made of ceramic. However, ceramic is relatively brittle and prone to cracking. Furthermore, ceramic products are more susceptible to cracking during transportation and drops from heights, rendering the electrode unusable due to arcing. Therefore, this application addresses the problem of ceramic cracking during transportation and drops by providing a U-shaped electrical limit groove 5151 on the elastic buffer member 515. The elastic buffer member 515 is manufactured using a high-elasticity silicone material through precision injection molding. Its surface has a U-shaped groove structure to accommodate the dimensional tolerances of the electrode structure 512, serving to mount the electrode structure 512 and providing a limiting effect. The elastic buffer member 515 is fixed to the mounting bracket 511, serving as a support and buffer structure for the electrode structure. The pressure plate 516 is equipped with a buckle 5161, which cooperates with the slot 51111 on the mounting bracket 511. The electrode structure 512 is pressed and fixed on the mounting bracket 511 through the buckle 5161 connection method, ensuring that it will not loosen due to vibration during operation. At the same time, the elastic buffer 515 can effectively absorb external impacts. It not only serves as a supporting skeleton for the electrode structure 512, but also effectively absorbs external mechanical impacts due to its excellent elastic buffer characteristics, attenuating the impact energy and greatly reducing the risk of micro-displacement of the electrode caused by thermal expansion and contraction or external disturbances. It has both fixing and shock absorption functions, improving the stability, reliability and service life of the module.

[0178] Based on the above embodiments, as a further defined embodiment, multiple sets of electrode structures 512 are arranged in a single row with equal spacing; the diameter of the outer electrode 5123 is set as d1, and the spacing between two adjacent sets of electrode structures 512 is set as d2, wherein 1.5d1≤d2≤5d1; the number of electrode structures 512 is 8 to 14 sets.

[0179] By arranging the electrode structure 512 in a single row, the problem of airflow obstruction caused by multiple rows can be avoided. Furthermore, the design of equidistant arrays of multiple electrode structures 512 ensures uniform discharge throughout the entire electrode safety zone. In addition, by setting the spacing of the electrode structures 512 within the aforementioned range, the problem of arcing caused by two electrode structures 512 being too close can be effectively avoided. Simultaneously, it also prevents two electrode structures 512 from being too far apart, resulting in a small effective discharge area and some airflow passing directly through without passing the plasma region, leading to low purification efficiency.

[0180] Preferably, the number of electrode structures 512 is 12 groups.

[0181] In some embodiments, the electrode structure 512 includes a conductive sleeve 5124, which is fixedly disposed outside the insulating tube 5122. The conductive sleeve 5124 is fixed and covers at least one end of the outer electrode 5123, and the outer electrode 5123 is connected to the power source through the conductive sleeve 5124.

[0182] In the above embodiment, the conductive sleeve 5124 is made of conductive material. Since the outer electrode 5123 wrapped around the insulating tube 5122 is relatively thin, it is very difficult and unreliable to connect it directly to the power line. The conductive sleeve 5124 covering the end of the outer electrode 5123 provides a large-area, stable and reliable electrical connection point, which completely solves the problem of messy connection and unstable conduction at the tail of the existing outer electrode 5123. In addition, the conductive sleeve 5124 can also reinforce and protect the inner insulating tube 5122 and the end of the outer electrode 5123.

[0183] Furthermore, in the electrode structure 512 provided in this embodiment, the original extended portion of the outer electrode 5123 is removed. Instead of connecting the extended portion of the outer electrode 5123 to the metal component by solder, the electrical connection is achieved by covering the end of the outer electrode 5123 with a conductive sleeve 5124. This makes the entire electrode structure 512 look neater and reduces phenomena such as poor electrode conductivity. In addition, there is no need to comb the tail of the outer electrode 5123 during connection, which effectively solves the problem of messy connection at the tail of the outer electrode 5123.

[0184] In some embodiments, the plasma generating device 51 further includes a low-voltage connecting plate 513, which is fixedly connected to the conductive sleeve 5124 and forms an electrical connection. The outer electrode 5123 forms a conductive path with the power supply through the conductive sleeve 5124 and the low-voltage connecting plate 513. The plasma generating device 51 also includes a high-voltage connecting plate 514, where one end of the inner electrode 5121 near the conductive sleeve 5124 extends out of the insulating tube 5122 and forms a conductive path with the power supply through the high-voltage connecting plate 514.

[0185] In the above embodiments, by replacing the messy traditional welded wires 517 with low-voltage connection plates 513 and high-voltage connection plates 514, the electrical connections of all electrodes are integrated onto a single board, resulting in neat and standardized wiring, greatly simplifying the internal structure, and achieving standardized and modular electrical connections. Furthermore, the low-voltage connection plates 513 and 514 provide clear and reliable interfaces with stable resistance, avoiding problems such as incomplete soldering or missing solder joints that may occur with manual soldering, ensuring the consistency and long-term reliability of the conductivity of all electrodes. Moreover, the low-voltage connection plates 513 and 514 are connected to the electrode structure 512 via plug-in or crimp connections, significantly improving assembly efficiency and reducing production costs and reliance on worker skills. Furthermore, by concentrating the electrical connection between the outer electrode 5123 and the inner electrode 5121 on one side, all connection points can be fixed by epoxy resin potting on only one side. The single-sided potting is more convenient to operate than the existing double-sided potting, and the single-sided potting can also effectively ensure that the insulating tube 5122 will not be broken due to stress compression from the double-sided potting, which improves process efficiency and ensures the conductivity of the electrode structure 512.

[0186] Based on the above embodiments, as a further defined embodiment, the low-voltage connection plate 513 is connected to the grounding terminal of the power supply, and the high-voltage connection plate 514 is connected to the high-voltage terminal of the power supply. Preferably, the ends of the low-voltage connection plate 513 and the high-voltage connection plate 514 connected to the power supply are located on the same side to facilitate wiring. Specifically, the end of the low-voltage connection plate 513 near the power supply is connected to the grounding terminal of the power supply, and the end of the low-voltage connection plate 513 near the power supply is connected to the high-voltage terminal of the power supply through wires 517.

[0187] Based on the above implementation, one end of the mounting bracket 511 is provided with two cable trays 51112, which are respectively used for the wires 517 connecting the low-voltage connection plate 513 to the power supply and the wires 517 connecting the high-voltage connection plate 514 to the power supply.

[0188] In the above embodiment, the power connection terminals of the low-voltage connection plate 513 and the high-voltage connection plate 514 are located on the same side. Combined with the design of two independent cable trays 51112, the two conductors 517 can pass through in an orderly manner, resulting in neat wiring, high space utilization, and avoiding wire tangling, effectively saving installation space. Furthermore, the separate routing of the high and low voltage conductors through the two independent cable trays 51112 achieves physical isolation, effectively preventing interference and short-circuit risks between high and low voltage lines, and improving the electrical safety performance of the system. In addition, it facilitates installation and maintenance; the centralized arrangement of the power connection terminals on the same side facilitates wiring operations and subsequent maintenance. The design of the cable trays 51112 makes the fixing of the conductors 517 more standardized, less prone to confusion during disassembly, and reduces maintenance difficulty and error rate.

[0189] As a further defined embodiment, both the low-voltage connecting plate 513 and the high-voltage connecting plate 514 are located above the electrode structure 512, and the low-voltage connecting plate 513 and the high-voltage connecting plate 514 are respectively fixed on the mounting bracket 511 by means of snap-fit, plug-in or other methods.

[0190] In some alternative embodiments, the bottom edge of the upper frame of the mounting bracket 511 bends and extends towards the electrode structure 512 to form a first step position for accommodating and supporting the low-voltage connecting plate 513, which is then embedded and limited within this first step position. A second step position is formed at the top of the upper frame of the mounting bracket 511, within which the high-voltage connecting plate 514 is embedded and limited. The second step position is higher than the first step position, and the high-voltage connecting plate 514 is higher than the low-voltage connecting plate 513.

[0191] Furthermore, after the electrode structure 512, elastic buffer 515, pressure plate 516, low-voltage connecting plate 513, and high-voltage connecting plate 514 are all assembled, the upper cover 5112 and lower cover 5113 are fastened, and then insulating glue is poured into the upper cover 5112 to form an insulating seal, so that the low-voltage connecting plate 513 and high-voltage connecting plate 514 are insulated from the outside air, preventing leakage, sparking, or other related safety hazards. Optionally, the insulating glue is epoxy resin. When it is necessary to disassemble and maintain the electrode structure 512, the lower cover 5113 is opened for disassembly and maintenance.

[0192] In some embodiments, the conductive sleeve 5124 is made of copper foil or conductive adhesive.

[0193] In the above embodiments, copper foil possesses excellent conductivity and mechanical strength, and can be firmly wrapped around the electrode end through methods such as hot pressing to form a durable and reliable electrical interface, completely solving problems such as poor connection and easy oxidation caused by direct welding or binding. Conductive adhesive, on the other hand, has good adhesion and flexibility, and can cure at room temperature, making it particularly suitable for irregular surfaces. It can better adapt to manufacturing tolerances, further simplifying the assembly process, while providing good shock resistance. Whether using copper foil or conductive adhesive, the conductive sleeve 5124 can form a large-area, low-resistance stable contact with the spiral-shaped thin external electrode 5123 (such as carbon fiber) and the low-voltage connecting plate 513, facilitating electrical connection. Moreover, using copper foil or conductive adhesive to replace the original messy tail wire combing and welding makes the electrode end neat and standardized, eliminating quality fluctuations caused by individual operational differences and improving product consistency and aesthetics.

[0194] Preferably, the conductive sleeve 5124 is made of copper foil. The smooth surface of the copper foil is more conducive to the subsequent epoxy resin potting operation, allowing the potting resin to cover evenly and effectively preventing the connection points from failing due to environmental humidity, oxidation, or mechanical stress, resulting in lifting or detachment. Moreover, copper foil is a cathodic electrolytic material, and as a conductor in the PCB, it easily adheres to the insulating tube 5122. Furthermore, the copper foil is fixed to the outside of the insulating tube 5122 by thermal soldering, and both ends of the copper foil are wrapped with insulating adhesive 5125, which can more effectively prevent the copper foil from lifting or detaching over time, thus affecting the discharge stability.

[0195] Of course, as an alternative implementation, conductive adhesive can be used instead of copper foil for connection. Conductive adhesive has good conductivity and adhesion properties, can be cured at room temperature, and is suitable for connection surfaces with complex shapes, further improving the stability and adaptability of the connection.

[0196] In some embodiments, the end of the outer electrode 5123 without the conductive sleeve 5124 is covered by insulating glue 5125, and both ends of the insulating tube 5122 are respectively covered by insulating glue 5125. One end of the insulating tube 5122 is through which the inner electrode 5121 passes, and the other end is completely covered by insulating glue 5125 to isolate air.

[0197] In some embodiments, both the low-voltage connection board 513 and the high-voltage connection board 514 are PCB boards.

[0198] In the above embodiments, by using a PCB board (i.e., a printed circuit board) as the connection board between the external electrode 5123, the internal electrode 5121 and the power supply, compared with the connection through ordinary metal plates or connecting wires, the problems of poor soldering of metal solder joints leading to no power supply, and the inability to conduction due to vibration or temperature and humidity effects, which are common in traditional connection methods, are avoided. The connection reliability is significantly improved and the assembly speed is accelerated. The superior conductivity and excellent mechanical strength of the PCB board can improve the electrode conduction between the external electrode 5123 and the internal electrode 5121, and improve the reliability and service life of the electrode structure 512.

[0199] Furthermore, by using a PCB board, the electrical parameters of each electrode are highly consistent, thereby ensuring the uniformity and stability of the discharge of the entire plasma generator 51. Moreover, with the use of a PCB board, the electrical connection of all electrodes is transformed into a simple plug-in or crimping process, eliminating the wire stripping and soldering process in production and greatly improving production efficiency. This provides a solid foundation for large-scale mass production. In addition, the number of electrodes can be increased or decreased simply by adjusting the interface layout on the PCB board. The modularity and design scalability are extremely high, providing a scalable standardized basis for mass production.

[0200] In some embodiments, the PCB board is a flexible PCB board or a rigid PCB board. The flexible PCB board can adapt to different shaped installation spaces, improving the applicability of the module. The flexible PCB board also has good bending performance, enabling reliable connections in confined spaces, and is particularly suitable for the design of compact plasma generator 51. The rigid PCB board has good strength and can play a role in supporting and stabilizing the electrode structure 512.

[0201] In some embodiments, the insulating tube 5122 is a ceramic tube.

[0202] In the above embodiments, the insulating tube 5122 is made of ceramic material (such as alumina ceramic), which has extremely high insulation strength and arc resistance. It can effectively withstand the high voltage generated by glow discharge, prevent breakdown short circuit between electrodes, and ensure the safety and stability of the discharge process.

[0203] In other alternative embodiments, the insulating tube 5122 may also be a quartz tube, a glass tube, or a polytetrafluoroethylene tube.

[0204] In some embodiments, the two ends of the conductive sleeve 5124 are respectively covered and fixed to the outside of the insulating tube 5122 by insulating adhesive 5125.

[0205] In the above embodiments, the conductive sleeve 5124 is firmly glued to the insulating tube at both ends using insulating adhesive 5125, preventing the conductive sleeve 5124 from loosening or warping due to long-term use or vibration. Simultaneously, the covering of both ends with insulating adhesive 5125 ensures that current can only be drawn from predetermined locations on the conductive sleeve 5124, effectively preventing corona discharge or short circuits with adjacent components that may occur due to concentrated electric fields at the edges of the conductive sleeve 5124, thus improving safety.

[0206] Preferably, in this embodiment, the insulating adhesive 5125 is epoxy resin.

[0207] In some embodiments, the winding pitch of the outer electrode 5123 is set to D, the end of the inner electrode 5121 that extends out of the insulating tube 5122 is called the protruding end, and the end of the outer electrode 5123 that is provided with the conductive sleeve 5124 is called the electrical connection end; the protruding end and the electrical connection end are located on the same side of the electrode structure 512, and the distance between them is d, where d > 2D.

[0208] By adopting the above-described dimensional design, a sufficient electrical safety distance is ensured, establishing a adequate safety insulation distance between the leads of the inner electrode 5121 (high voltage) and the outer electrode 5123 (ground). This effectively prevents the risk of air breakdown and arcing due to excessive proximity between the two electrodes, fundamentally eliminating safety hazards. Furthermore, the sufficient safety distance helps to make the electric field distribution at the electrode ends more gradual, optimizing the electric field distribution and reducing electric field distortion, thereby promoting the stable initiation and maintenance of glow discharge and improving discharge efficiency.

[0209] In a more specific example, the winding pitch D is 3 mm, and d is between 15 mm and 20 mm, preferably d is 17 mm.

[0210] In some embodiments, the conductive sleeve 5124 covers one end of the outer electrode 5123; the electrode structure 512 has multiple sets arranged in a linear interval, and the conductive sleeve 5124 is provided in a corresponding manner, and the multiple conductive sleeves 5124 are provided at the same end of the multiple sets of electrode structures 512; the low-voltage connecting plate 513 is provided on the same side of the multiple sets of electrode structures 512 where the conductive sleeves 5124 are provided, and is fixedly connected to and electrically conductive with all the conductive sleeves 5124.

[0211] In the above embodiments, multiple electrode structures 512 are arranged linearly, and all conductive sleeves 5124 are located at the same end and are uniformly connected by a low-voltage connecting plate 513. All electrical connections are concentrated on the same side of the electrodes, so that only one side needs to be treated when potting epoxy resin, achieving single-sided potting. This significantly reduces stress and avoids the problem of uneven stress on both sides of the insulating tube 5122 and easy breakage caused by potting on both sides in the prior art, which significantly improves product yield and long-term reliability. Moreover, the same-side layout makes the device structure very compact and regular, and the appearance is more aesthetically pleasing.

[0212] In some embodiments, the axial length of the conductive sleeve 5124 is greater than D, and the end of the outer electrode 5123 is located in the middle of the conductive sleeve 5124. This ensures that the area of ​​the conductive sleeve 5124 is large enough to completely cover the end of the outer electrode 5123 and facilitates connection with the low-voltage connection plate 513.

[0213] In some embodiments, the low-voltage connecting plate 513 is snapped onto the outer periphery of the conductive sleeve 5124. The inner electrode 5121 is inserted into the high-voltage connecting plate 514.

[0214] In the above embodiments, the low-voltage connecting plate 513 and the conductive sleeve 5124 are connected by a snap-fit ​​method, which ensures a reliable connection and facilitates assembly and disassembly. The inner electrode 5121 is plugged into the high-voltage connecting plate 514 for easy assembly and disassembly.

[0215] In some embodiments, the low-voltage connecting plate 513 is provided with a bayonet 5131, which is interference-fitted onto the outer periphery of the conductive sleeve 5124.

[0216] In the above embodiments, the low-voltage connecting plate 513 is directly snapped onto the conductive sleeve 5124 through the interference fit bayonet 5131, realizing a weldless and quick connection. During assembly, reliable electrical contact and mechanical fixation can be achieved simply by pressing, which further improves the assembly speed. Moreover, when it is necessary to replace a single electrode or the low-voltage connecting plate 513, it can be easily and quickly disassembled and installed, which is convenient for maintenance and replacement.

[0217] In some embodiments, the inner electrode 5121 has an extension section extending out of the insulating sleeve; the high voltage connection plate 514 is provided with a connection hole 5141 at the position corresponding to the extension section, and the extension section is inserted into the connection hole 5141.

[0218] In the above embodiment, the protruding section of the inner electrode 5121 is inserted into the connection hole 5141 of the high voltage connection plate 514, thereby ensuring the precise alignment of each inner electrode 5121 and forming a stable electrical connection through the tight fit between the connection hole 5141 and the inner electrode 5121. At the same time, it realizes the rapid and parallel assembly of the high voltage end and completes the efficient assembly closed loop of the entire device with "high and low voltage double-side plate connection".

[0219] Preferably, the protruding section and the connecting hole 5141 are interference-fitted, so that the inner electrode 5121 and the high-voltage connecting plate 514 are tightly connected, resulting in higher electrical conductivity stability. Of course, in other optional embodiments, conductive adhesive can be poured between the inner electrode 5121 and the connecting hole 5141 to further improve the stability of their connection.

[0220] To address the difficulty of connecting the thin external electrode 5123 to the power supply, this embodiment adds a conductive sleeve 5124 to the end of the external electrode 5123. Simultaneously, a low-voltage connecting plate 513 replaces the metal connecting wire. The high-voltage connecting plate 514 has a number of connecting holes 5141 equal to the number of electrodes, while the low-voltage connecting plate 513 has the same number of U-shaped bayonets 5131. During production and installation, the inner electrode 5121 is connected to the connecting holes 5141 of the high-voltage connecting plate 514, and the U-shaped bayonets 5131 of the low-voltage connecting plate 513 are connected to the conductive sleeve 5124. The plate is then mounted on the mounting bracket 511, and the electrode structure 512 is fixed by the pressure plate 516. This connection method significantly reduces installation time, effectively improves production efficiency, and solves the problem of connecting the metal connecting wire to the external electrode 5123 of the electrode structure 512. By using the high-voltage connecting plate 514 and the low-voltage connecting plate 513 to replace the metal connecting wire for electrode connection, the wire stripping and soldering process is eliminated in production, greatly improving efficiency.

[0221] In some embodiments, the inner electrode 5121 is made of a metal rod or wire, the insulating tube 5122 is made of ceramic, and the outer electrode 5123 is made of metal wire or carbon fiber. A spiral outer electrode 5123 is provided on the outer surface of the insulating tube 5122, forming a columnar DBD structure. The inner electrode 5121 is connected to a high-voltage AC power supply, and the outer electrode 5123 is grounded. Regarding the electrode parameters: the inner electrode 5121 has a diameter of 1 mm, the insulating tube 5122 has a thickness of 0.5 mm, the outer electrode 5123 has a diameter of 0.08 mm, and the pitch is 3 mm. These parameters are optimal; other parameters are also within the scope of this invention. Regarding the number of electrode structures 512, theoretically, it should be greater than or equal to one. The number of electrodes provided in the accompanying drawings of this embodiment is 12, connected in parallel.

[0222] In existing plasma generators 51, the outer electrode 5123 (carbon fiber filament) of the electrode structure 512 extends outwards. Within a single plasma generator 51, the carbon fiber tails of multiple electrode structures 512 need to be twisted together. After combing the carbon fiber tails, the tails of the carbon fibers of each ceramic electrode are connected by solder to form a conductive module. However, this method has certain conductivity issues. The messy, intertwined carbon fiber tails make wiring inconvenient and unsightly. Therefore, to solve the problems of messy carbon fiber tail connections and conductivity, this application extends the carbon fiber tail portion... The outer electrode 5123 is removed, leaving only the spiral portion on the insulating tube 5122. A distance 'd' is set between the outer electrode 5123 and the protruding end of the inner electrode 5121, and the end of the outer electrode 5123 with the conductive sleeve 5124 is fixed by copper foil. This design reduces connection difficulty while maintaining functionality. Furthermore, when potting epoxy resin, only one side of the connecting wire needs to be potted, significantly reducing manufacturing costs compared to the previous method of potting both sides. The insulating tube 5122 is also less prone to breakage due to pressure stress at both ends. In the overall structure, the electrode structure 512 is supported by the U-shaped electrical limit groove 5151 of the elastic buffer 515 and fixed by the buckle 5161 of the pressure plate 516. The outer electrode 5123 is connected to the inner electrode 5121 at a designated position via copper foil, and a conductive path is achieved through the PCB board. This design not only improves the stability of the external electrode 5123's power supply but also enhances its shock resistance, making it suitable for various air purification devices requiring deodorization functions.

[0223] In some embodiments, the air outlet includes a lower air outlet 102 disposed at the bottom of the housing 10 and an upper air outlet 101 disposed at the top of the housing 10. An air inlet 100 is provided in the middle of the housing 10. External air enters the air purifier through the middle air inlet 100, and after being filtered and purified, it is blown out from the upper air outlet 101 and the lower air outlet 102 respectively. The deodorization module 50 is disposed at the upper air outlet 101 and / or the lower air outlet 102.

[0224] The air purifier provided in the above embodiments adopts an airflow path design with central air intake and top and bottom air outlets. Compared with the purification method of top and bottom air intake and central air outlet, it can effectively avoid the problem of bottom air intake, which easily sucks in foreign objects such as dust and hair from the ground directly into the filter, causing filter blockage and even affecting filter performance and service life. It reduces the frequency of filter cleaning, extends the service life of the filter, and reduces maintenance costs. On the other hand, the traditional central air outlet design usually produces a strong direct airflow feeling, which can easily cause user discomfort or even interfere with concentration in quiet scenarios such as sleeping or working. However, the central air intake and top and bottom air outlet design of this application allows the purified air to be delivered from the top and bottom at the same time, forming a "surround" airflow purification path in the room. This allows the purified air to evenly surround the user, avoiding direct airflow interference. It is particularly suitable for quiet scenarios such as sleeping and working, achieving "imperceptible purification", significantly improving user comfort, and enhancing the adaptability of the air purifier in multiple environmental applications to meet the needs of different users in various usage scenarios.

[0225] In a specific example, the deodorization module 50 is located at the lower air outlet 102, while the upper air outlet 101 is not equipped with the deodorization module 50. This design ensures that the air coming out of the upper air outlet 101 does not undergo additional purification and deodorization, thus maximizing the purification performance and working efficiency of the air purifier in deodorization mode.

[0226] In some embodiments, the air inlet 100 is arranged around the middle of the air purifier; the upper air outlet 101 is located on the top surface of the air purifier; and the lower air outlet 102 is arranged around the bottom perimeter wall of the air purifier.

[0227] In the above embodiments, the air inlet 100, through its surrounding design, increases the effective air intake area, allowing more air to be purified to quickly enter the device. This provides a structural basis for achieving a large air volume and a high clean air output ratio, thereby improving the initial purification efficiency of the entire unit. Furthermore, by placing the upper air outlet 101 on the top surface of the outer casing 10, it facilitates the upward diffusion and natural downward flow of clean air, forming a gentle vertical airflow. The bottom circumferential air outlet design allows air to be delivered horizontally to the far end of the room. This combined upper and lower air outlet method creates a uniform and gentle airflow, completely avoiding discomfort caused by direct airflow onto the human body. It is particularly suitable for bedrooms, studies, and other scenarios where quietness and comfort are paramount.

[0228] In one specific example, the top of the housing 10 is open and fitted with an air outlet grille 12 to form an upper air outlet 101. An air inlet 100 and a lower air outlet 102 surround at least three sides of the housing 10.

[0229] In some embodiments, the air inlets 100 are distributed on the back and two sides of the housing 10; the lower air outlets 102 are distributed on the back and two sides of the housing 10.

[0230] In the above embodiments, by setting the air inlet 100 and the lower air outlet 102 on the back and two sides of the housing 10 instead of the front, the front panel does not need to have a functional air inlet 100 or air outlet, thus maintaining the aesthetic and clean appearance of the product. In order to facilitate the maintenance and replacement of the filter, deodorization module 50, etc. inside the air purifier, a large disassembly port needs to be opened on the housing 10. By setting the disassembly port on the back of the housing 10 and installing the air inlet grille 11 on the disassembly port, the structure can be hidden, making it convenient to disassemble and maintain the internal components of the housing 10. It can also serve as an air inlet 100 or air outlet for air intake and exhaust, while maintaining a complete and simple appearance design, making it easier to integrate into home decoration styles and enhancing the aesthetic value of the product.

[0231] In some embodiments, the air purifier further includes a lower fan assembly 22, which is disposed at the bottom of the housing 10. The lower fan assembly 22 includes a first fan 221 and a first bracket 222 for mounting the first fan 221. A plasma generator 51 is installed on the outer periphery of the first bracket 222 and corresponds to the lower air outlet 102. The plasma generator 51 and the first bracket 222 enclose each other to form a lower air duct. The lower air duct connects the air inlet 100 and the lower air outlet 102. The first fan 221 is disposed in the lower air duct.

[0232] In the above embodiments, by integrating the deodorization module 50 with the lower fan assembly 22, the first bracket 222 not only fixes the fan but also serves as the duct wall and mounting base for the deodorization module 50, achieving modular and integrated design of functional components. This greatly saves internal space, making the overall layout more reasonable and compact, and increasing space utilization. Furthermore, by directly placing the plasma generator 51 inside the lower duct and facing the lower air outlet 102, it ensures that all air blown from the bottom passes through the plasma area, thereby guaranteeing the effectiveness and consistency of deodorization. Simultaneously, the design of the lower duct also helps reduce airflow resistance, ensuring smooth airflow and volume.

[0233] Specifically, the first fan 221 includes a first motor 2211 and a first fan blade 2212. The first motor 2211 and the first fan blade 2212 are connected. The first motor 2211 can drive the first fan blade 2212 to rotate, so as to drive the air entering from the air inlet 100 to flow down the air outlet 102 along the first air duct. The first motor 2211 is detachably installed and fixed in the first bracket 222, and the first fan blade 2212 is installed on the output shaft above the first motor 2211. The plasma generator 51 has a discharge gap for airflow. When the plasma generator 51 is installed on the first bracket 222, the plasma generator 51 is located on the airflow path from the air inlet 100 to the lower air outlet 102, and the plasma generator 51 has a discharge gap for airflow and discharge purification.

[0234] In some embodiments, the lower air outlet 102 is distributed on at least two sides of the housing 10; at least two sets of plasma generating devices 51 are provided, and the at least two sets of plasma generating devices 51 are arranged on at least two sides of the first bracket 222 corresponding to the lower air outlet 102; the at least two sets of plasma generating devices 51 and the first bracket 222 enclose a lower air duct that is closed at the bottom, draws air at the top, and discharges air from at least two sides.

[0235] In the above embodiment, the lower air outlet 102 adopts a design with air outlets on at least two sides, which makes the bottom air supply direction wider, can push clean air to fill the entire bottom space of the room more quickly, reduce purification dead corners, improve air replacement efficiency, and achieve multi-directional and uniform bottom air outlet. Furthermore, plasma generators 51 are configured in multiple air outlet directions, ensuring effective odor decomposition regardless of the direction of airflow, thus achieving full coverage of odor removal in the bottom air outlet area and significantly enhancing the product's ability to cope with complex odor environments. In addition, the "closed bottom, suction top, multi-directional air outlet" duct structure formed by the plasma generator 51 and the first support 222 is highly efficient and reasonable, conforming to the working characteristics of a centrifugal fan, effectively guiding airflow, gathering purified air from the middle, and uniformly pressing it out from multiple directions.

[0236] In one specific example, the deodorization module 50 is plugged into the first bracket 222 for easy disassembly and maintenance.

[0237] In a specific example, the lower air outlet 102 is provided on three sides of the housing 10, the mounting bracket 511 is provided with three flow openings 2220, and the plasma generator 51 has three sets. The three sets of plasma generators 51 are installed at the three flow openings 2220 to catalytically degrade harmful gases, odors, etc. in the air flowing through the flow openings 2220 through discharge.

[0238] In some embodiments, the first support 222 is a frame structure, and an overflow opening 2220 is provided on one side of the first support 222 corresponding to the lower air outlet 102. A first slot 2221 is formed on the first support 222, and the plasma generator 51 is inserted into the first slot 2221, corresponding to the overflow opening 2220. A second slot is also formed on the first support 222, and the second slot is located between the first slot 2221 and the lower air outlet 102. An overflow guard 52 is inserted into the second slot, and both the plasma generator 51 and the overflow guard 52 can allow airflow to pass through.

[0239] In the above embodiment, the frame-type first bracket 222 adopts a first slot design, which facilitates the insertion and removal of the plasma generator 51 as an independent module on the first bracket 222. This not only ensures a stable and reliable connection but also greatly simplifies the production and assembly process, making it easier for users or maintenance personnel to replace or maintain the plasma generator 51, reducing after-sales service costs, and facilitating production and maintenance. Furthermore, the design of the first slot 2221 and the second slot enables precise positioning, ensuring the accuracy and consistency of the installation positions of the plasma generator 51 and the overflow guard 52, so that its air outlet surface is precisely aligned with the flow opening 2220 on the bracket, ensuring smooth airflow.

[0240] Furthermore, along the airflow direction, the plasma generator 51, the metal mesh cover, and the ozone reduction mesh 53 are arranged sequentially. The first support 222 is provided with a second slot and a third slot for installing the metal mesh cover and the ozone reduction mesh 53. The metal mesh cover and the ozone reduction mesh 53 are slidably installed in the second and third slots from the side of the first support 222. This design facilitates the disassembly and maintenance of the metal mesh cover and the ozone reduction mesh 53.

[0241] In some alternative embodiments, two sets of partition ribs can be provided in the first slot 2221 of the first bracket 222 to divide it into three slots, which are respectively used to install the plasma generator 51, the metal mesh cover, and the ozone reduction mesh 53. Alternatively, a second slot and a third slot can be constructed separately on the side of the first slot 2221 near the lower air outlet 102.

[0242] In some embodiments, the air purifier further includes an upper fan assembly 21, which is disposed at the top of the housing 10 and is used to drive external air to flow from the air inlet 100 to the air outlet 101.

[0243] In the above embodiments, the upper fan assembly 21 and the lower fan assembly 22 together constitute a dual-fan drive system. The two fans can independently control the wind speed and start / stop, providing a hardware foundation for realizing multiple purification modes, such as air outlet only from the top, air outlet only from the bottom, air outlet from both top and bottom at the same time, strong mode, sleep mode, etc., greatly enhancing the product's functional diversity and scenario adaptability.

[0244] In some embodiments, the upper fan assembly 21 includes a second fan 211, a second bracket 213 for mounting the second fan 211, and an upper air duct 212; the inlet end of the upper air duct 212 is connected to the upper purification outlet of the filter module 30, and the outlet end is connected to the upper air outlet 101; the second fan 211 is disposed inside the upper air duct 212; the second bracket 213 is installed on the side of the upper air duct 212 away from the filter module 30.

[0245] Specifically, the second fan 211 includes a second motor 2111 and a second fan blade 2112. The second motor 2111 is connected to the second fan blade 2112 and can drive the second fan blade 2112 to rotate, so that the airflow flows from the air inlet 100 to the air outlet 101.

[0246] In some embodiments, the air purifier further includes a filter module 30, which is disposed at the air inlet 100 and is used to filter and purify the air.

[0247] In the above embodiment, the filter module 30 installed at the air inlet 100 effectively removes particulate pollutants such as PM2.5, pollen, and dust from the air, which is fundamental to ensuring the quality of the outlet air. Furthermore, by organically combining physical filtration at the central air inlet 100 with chemical decomposition at the lower air outlet, a multi-stage purification system is formed, synergistically enhancing the effect and achieving comprehensive and efficient purification of particulate matter and gaseous pollutants. In addition, since a single central air inlet is used, only one filter module 30 needs to be installed at the air inlet 100, compared to the existing system that requires two independent filter modules 30 for upper and lower air inlets, simplifying the overall structure and reducing material costs and filter maintenance complexity.

[0248] In some embodiments, the filtration module 30 includes a filter support structure and a filter 31 disposed at the air inlet 100. A filter mounting space is formed within the filter support structure, and the filter 31 is rotatably mounted within the filter mounting space. Optionally, the filter 31 is cylindrical and is composed of at least a HEPA filter and an activated carbon filter.

[0249] In the above embodiments, the cylindrical filter 31 is designed to fit the air inlet 100 circumferentially surrounding the outer casing 10, resulting in a larger filtration area and the ability to handle a larger air volume within the same volume. It also provides a structural support for filter rotation and advanced maintenance functions such as filter self-cleaning and UV sterilization. Furthermore, the filter 31 employs a composite design of HEPA and activated carbon filters, which not only efficiently intercepts particulate matter but also adsorbs gaseous pollutants, achieving simultaneous and efficient removal of both major air pollutants.

[0250] Specifically, filter 31 is positioned in the middle of the housing 10, corresponding to the air inlet 100. The top and bottom of the filter module 30 have upper and lower purification outlets, respectively. The upper fan assembly 21 is positioned between the upper purification outlet and the upper air outlet 101, and the lower fan assembly 22 is positioned between the lower purification outlet and the lower air outlet 102. After entering the housing 10 through the air inlet 100, external air is filtered by the filter module 30 and then flows from the upper and lower purification outlets to the upper fan assembly 21 and the lower fan assembly 22, respectively. The HEPA filter is positioned on the inner circumference of the activated carbon filter. Filter 31 is detachably installed in the housing 10. By integrating the HEPA high-efficiency particulate air filter and the composite activated carbon filter into a single, replaceable cylindrical unit, which is detachably installed in the housing 10, the resource waste problem of traditional integrated filters requiring complete replacement due to partial failure is effectively solved.

[0251] In some embodiments, such as Figure 6 , Figure 8 , Figure 18 and Figure 19 As shown, the air purifier also includes an ultraviolet sterilization module 60, which is installed on the filter support structure and located on one side of the filter 31, for performing ultraviolet sterilization on the filter 31.

[0252] By setting the filter 31 as a rotatable cylindrical structure and placing the ultraviolet sterilization module 60 on one side of it, the entire outer surface of the rotating filter 31 can be uniformly irradiated with 360 degrees without dead angles, ensuring the thoroughness and efficiency of sterilization and disinfection, and effectively inhibiting the growth of bacteria.

[0253] In some embodiments, the ultraviolet sterilization module 60 includes a lamp holder 62 and an ultraviolet lamp 61. The lamp holder 62 extends along the length direction of the filter 31, and the extension length is not less than the length of the filter 31. There are multiple ultraviolet lamps 61, which are arranged at intervals along the length direction of the lamp holder 62, and the irradiation range of the multiple ultraviolet lamps 61 in the height direction of the filter 31 covers the filter 31.

[0254] In the above embodiment, by setting the length of the lamp holder 62 to be no less than the length of the filter 31, and using multiple ultraviolet lamps 61 arranged at intervals along its length, the irradiation range of the multiple ultraviolet lamps 61 in the height direction of the filter covers the filter, ensuring that the ultraviolet light can cover the entire effective filtration height of the filter 31, avoiding the problem of incomplete sterilization in local areas of the filter due to insufficient irradiation length, ensuring that there are no dead corners in the longitudinal sterilization of the filter, and the interval arrangement of multiple lamp beads can form a continuous and uniform ultraviolet light field on the surface of the filter. Combined with the rotation of the filter, every point of the filter can receive a sufficient amount of ultraviolet radiation dose, thereby greatly improving the reliability and uniformity of sterilization.

[0255] In some embodiments, the lamp holder 62 has a strip-shaped structure and includes a front plate and a rear shell that interlock with each other. The front plate and the rear shell form a mounting cavity for mounting the ultraviolet lamp 61. The front plate has an opening corresponding to the ultraviolet lamp 61 so that the ultraviolet lamp 61 can be exposed and covered onto the filter 31.

[0256] In some specific examples, eight high-intensity ultraviolet lamps 61 are equidistantly integrated on the lamp holder 62. Each ultraviolet lamp 61 has an output intensity ≥1mW / cm² (wavelength 260–280nm). The spacing between the ultraviolet lamps 61 is geometrically matched to the pleat pitch of the filter 31, with the lamp beads aligned with the center of the filter section, eliminating blind spots and ensuring comprehensive coverage, significantly increasing the unit irradiation energy. The filter 31 rotates at a speed of 0.3r / min, extending the continuous irradiation time for each pleat and ensuring a cumulative ultraviolet dose ≥10mJ / cm², achieving efficient inactivation and effectively inhibiting microbial photoreactivation, thus achieving comprehensive disinfection of the filter. The lamp holder 62 is located on the outside of the filter 31, working in conjunction with the filter's rotation to enhance airflow disturbance and heat dissipation, extending the lamp's lifespan. This design significantly reduces the number of light sources and overall power consumption while improving sterilization reliability. It also features a simplified structure, convenient maintenance, high safety, and strong compatibility, making it suitable for various household and commercial air purification devices with broad industrial prospects.

[0257] In some embodiments, the ultraviolet sterilization module 60 further includes baffle assemblies disposed on both sides of the plurality of ultraviolet lamps 61. In this embodiment, the irradiation range of the plurality of ultraviolet lamps 61 covers the filter screen in the height direction. Therefore, in the height direction, the ultraviolet light emitted by the ultraviolet lamps 61 can fully cover the filter screen 31. With the filter screen 31 rotating around its central axis, the ultraviolet light can scan the entire surface of the filter screen 31, achieving dynamic and comprehensive sterilization and avoiding static irradiation blind spots. By setting baffle assemblies on both sides of the plurality of ultraviolet lamps 61, the baffle assemblies can prevent ultraviolet light leakage and block the ultraviolet light reflected from the filter screen 31 from irradiating the outside of the air purification device, thereby avoiding harm to the human body. Furthermore, the ultraviolet light is concentrated on the inner side of the baffle assembly, which can improve the sterilization efficiency.

[0258] In some embodiments, the baffle assembly includes a first baffle 63, which is disposed on both sides of the plurality of ultraviolet lamps 61 and perpendicular to the lamp holder 62. The height of the first baffle 63 is not less than the effective filtration height of the filter 31. The first baffle 63 can reflect light and has a gap with the surface of the filter 31.

[0259] In the above embodiment, the first baffle 63 is disposed on both sides of the plurality of ultraviolet lamps 61 and perpendicular to the lamp holder 62. The height of the first baffle 63 is not less than the effective filtration height of the filter 31. Therefore, the first baffle 63 can prevent ultraviolet light leakage and block the ultraviolet light reflected from the filter from shining on the outside of the air purification device, thereby avoiding harm to the human body. The first baffle 63 can reflect light, so after the ultraviolet light reflected from the filter shines on the first baffle 63, the first baffle 63 can reflect the ultraviolet light back onto the filter 31, thereby ensuring the disinfection effect. The first baffle 63 has a gap with the surface of the filter 31, which can ensure that the first baffle 63 will not interfere with the rotation of the filter and ensure that the filter can rotate smoothly.

[0260] In some embodiments, the baffle assembly further includes a second baffle 64, which is disposed on both sides of the lamp holder 62. The first baffle 63 is located between the two second baffles 64, so the height of the second baffle 64 is not less than the effective filtration height of the filter screen 31. The angle between the second baffle 64 and the plane where the lamp holder 62 is located is an acute angle. The second baffle 64 can reflect light, and there is a gap between the second baffle 64 and the surface of the filter screen.

[0261] In the above embodiment, the second baffle 64 is disposed on both sides of the lamp holder 62, and the first baffle 63 is located between the two second baffles 64. The angle between the second baffle 64 and the plane where the lamp holder 62 is located is an acute angle. The second baffle 64 can further prevent ultraviolet light leakage and block the ultraviolet light reflected from the filter 31 from shining on the outside of the air purification device, thereby avoiding harm to the human body. The second baffle 64 can reflect light, so the ultraviolet light emitted by the ultraviolet lamp 61 passes through the gap between the first baffle 63 and the filter 31 and shines on the filter 31. After being reflected by the filter 31 and shining on the second baffle 64, the second baffle 64 can reflect the ultraviolet light back onto the filter, thereby ensuring the disinfection effect. The gap between the surface of the second baffle 64 and the filter 31 can ensure that the second baffle 64 will not interfere with the rotation of the filter 31, ensuring that the filter can rotate smoothly.

[0262] In some embodiments, the angle between the plane containing the second baffle 64 and the lamp holder 62 is 23°.

[0263] In the above embodiment, the angle between the plane where the second baffle 64 and the lamp holder 62 are located is 23°. The ultraviolet light emitted by the ultraviolet lamp 61 passes through the gap between the first baffle 63 and the filter 31 and shines on the filter 31. After being reflected by the filter 31 and shining on the second baffle 64, the second baffle 64 can reflect the ultraviolet light back onto the filter 31, thereby ensuring the disinfection effect.

[0264] In some embodiments, the first baffle 63 and the second baffle 64 include a substrate and a reflective layer disposed on the surface of the substrate.

[0265] In the above embodiments, by providing a reflective layer on the surface of the substrate, the reflective effect of the first baffle 63 and the second baffle 64 can be ensured.

[0266] In some embodiments, the reflective layer has micron-sized pits.

[0267] In the above embodiments, the reflective layer is provided with micron-level pits, which can realize controlled diffuse reflection of reflected light, so that after secondary reflection by the first baffle 63 and the second baffle 64, a more uniform irradiance distribution is formed on the filter surface.

[0268] In some embodiments, the reflective layer is an aluminum coating.

[0269] In the above embodiments, the reflective layer is an aluminum coating, which can improve the reflectivity, with an ultraviolet light reflectivity of ≥88% at a wavelength of 275nm.

[0270] In some embodiments, the lamp holder 62 is made of a thermally conductive insulating material.

[0271] In the above embodiment, the lamp holder 62 is made of thermally conductive and insulating material, which can effectively dissipate the heat generated by the ultraviolet lamp 61.

[0272] In some embodiments, the filter module 30 further includes a filter support structure, the filter 31 is rotatably mounted on the filter support structure, and the ultraviolet sterilization module 60 is detachably fixed on the filter support structure.

[0273] In the above embodiments, the filter support structure provides stable and reliable support for the rotation of the filter 31. By detachably fixing the ultraviolet sterilization module 60 to this support structure, the accuracy and stability of the sterilization module's position are ensured, and the replacement operation is greatly facilitated when the ultraviolet lamp 61 reaches the end of its lifespan or requires maintenance, reducing after-sales maintenance costs and improving the maintainability of the product.

[0274] In some embodiments, the filter support structure includes a bottom support component 33 and a top support component 32, and an intermediate support frame 34 disposed between the bottom support component 33 and the top support component 32. The bottom support component 33, the top support component 32 and the intermediate support frame 34 together enclose an installation space for accommodating the filter 31. The bottom support component 33 and the top support component 32 are respectively provided with axial mounting grooves. The two ends of the lamp holder 62 are respectively inserted into the axial mounting grooves of the bottom support component 33 and the top support component 32 and fixed by screws.

[0275] In the above embodiments, by placing the lamp holder 62 within the axial mounting grooves on the bottom support component 33 and the top support component 32 respectively, it can be ensured that the lamp holder 62 and the filter are installed coaxially, reducing eccentricity. Furthermore, the two ends of the lamp holder 62 are first inserted into the axial mounting grooves for initial positioning, and then secured with screws, ensuring precise alignment and mechanical strength of the connection, preventing displacement due to vibration, and thus guaranteeing the stability of the sterilization effect of the ultraviolet sterilization module 60.

[0276] Specifically, the axial mounting groove on the bottom support component 33 is open at least on its top surface, and the axial mounting groove on the top support component 32 is open at least on its bottom surface. Preferably, the outer peripheral surfaces of the axial mounting grooves of the bottom support component 33 and the top support component 32 are also open. This design facilitates the installation and fixing of the lamp holder 62 by pushing it into the two axial mounting grooves from the openings on the outer peripheral side of the filter support structure after the filter support structure is assembled. More preferably, at least one axial mounting groove is provided with a positioning rib or a positioning groove, and the lamp holder 62 is provided with a corresponding positioning groove or positioning rib. Through the cooperation of the positioning rib and the positioning groove, the lamp holder 62 can be effectively prevented from tipping over after being pushed into the axial mounting groove, which facilitates subsequent screw driving.

[0277] In some specific embodiments, there are two intermediate support frames 34, which are arranged opposite to each other. The intermediate support frames 34 are frame-shaped, with the upper end of the frame-shaped intermediate support frame 34 connected and fixed to the top support assembly 32, and the lower end of the frame-shaped intermediate support frame 34 connected and fixed to the bottom support assembly 33. The lamp holder 62 is installed between the two intermediate support frames 34.

[0278] In some embodiments, combined with Figures 1 to 4 and 6 to Figure 8 , Figures 11 to 17 As shown, the air purifier also includes a display module 70, which is integrated on the upper fan assembly 21. The top of the housing 10 is open to form the upper air outlet 101. An air outlet grille 12 is installed inside the upper air outlet 101. The air outlet grille 12 is annular, and an opening is formed in the middle of the air outlet grille 12 to allow the display module 70 to be exposed.

[0279] In the above embodiment, by setting the air outlet grille 12 as an annular shape, the opening in the middle of the annular air outlet grille 12 serves as a clearance opening for the display module 70 to be exposed, so that the air outlet and display functions do not interfere with each other, while the clearance opening can also meet the heat dissipation requirements of the display module 70.

[0280] In some embodiments, the display module 70 includes a display bracket 71, a display lamp 74 mounted on the display bracket 71, a lampshade, and a lamp holder 73 for supporting the lampshade 72. The lampshade 72 is made of crystal or a crystal-like light-transmitting material. The display bracket 71 passes through the lampshade 72 at least partially and is detachably connected to the lamp holder 73 to limit the lampshade 72 between the display bracket 71 and the lamp holder 73. The display lamp 74 is configured to emit light, and the light can illuminate the lampshade 72 and be refracted and / or scattered by the lampshade 72.

[0281] In the above embodiments, the display module 70 of the air purifier uses a lampshade 72 made of crystal or crystal-like translucent material. This allows the light emitted by the display lamp 74 to be refracted and / or scattered in all directions after hitting the lampshade 72, creating a soft, three-dimensional halo effect. This makes the overall appearance more refined and high-end, improving the product's visual quality and user experience. It also effectively prevents the light from the display lamp 74 from shining directly out, causing glare and user interference. Furthermore, this application uses a clamping design between the display bracket 71 and the lamp holder 73 to install the lampshade 72. This not only ensures a secure and stable installation of the lampshade 72 but also avoids the risks of damaging the integrity of the lampshade 72 and causing stress cracks associated with fixing the lampshade 72 with screws or similar methods. It also makes the installation and removal of the lampshade 72 easier, facilitating later cleaning or replacement and reducing maintenance costs.

[0282] Specifically, in this embodiment, the lampshade 72 is made of crystal and is a spherical or hemispherical crystal ball. Preferably, the lampshade 72 in this embodiment is hemispherical to facilitate its fit with the plate-shaped components such as the display panel 79, display panel 76, and decorative panel 75 above it. The lamp holder 73 is a bowl-shaped component that matches the shape of the lampshade 72. A hollow channel running through the center of the lampshade 72 is provided, and the lower end of the display bracket 71 passes through the hollow channel and connects to the lamp holder 73. The display bracket 71 and the lamp holder 73 are connected by screws or snap-fit. Preferably, to ensure the stability of the connection between the display bracket 71, the lamp holder 73, and the lampshade 72, the display bracket 71 and the lamp holder 73 are connected by screws.

[0283] In some embodiments, such as Figure 13 , Figure 16 and Figure 17 As shown, the display bracket 71 includes a support portion 711 and a connecting portion 712 located below the support portion 711; the display lamp 74 is mounted above the support portion 711, and the support portion 711 is provided with a light-transmitting opening 7110 that guides the light of the display lamp 74 to illuminate the lamp cover 72; the lamp cover 72 has a hollow channel in the middle, and the connecting portion 712 passes through the hollow channel and is screwed to the lamp holder 73.

[0284] In the above embodiments, the display bracket 71, through the design of the support part 711 and the connecting part 712, can not only install the display lamp 74, but also connect with the lamp holder 73, realizing the assembly and fixation of the lamp holder 73, display bracket 71, and lamp cover 72, serving multiple purposes in one device. By mounting the display panel 79 above the support part 711, the support part 711 can form a physical isolation between the display panel 79 and the lamp cover 72, avoiding the risk of heat accumulation or short circuit. Furthermore, the light-transmitting opening 7110 on the support part 711 can guide the light to concentrate on the lamp cover 72, avoiding scattering loss. The cooperation between the connecting part 712 and the hollow channel of the lamp cover 72 can effectively ensure the coaxiality of the lamp cover 72, display bracket 71, and lamp holder 73, preventing the lamp cover 72 from shifting and affecting the light efficiency. In addition, the connecting part 712 and the lamp holder 73 are fixed by screw connection, which is reliable and stable, effectively ensuring the stability of the product during transportation and use.

[0285] Specifically, the support portion 711 is an annular plate structure, and the connecting portion 712 is a cylindrical structure. The upper circumferential edge of the cylindrical connecting portion 712 is connected to the inner ring edge of the annular support portion 711. There are multiple sets of indicator lights 74, which are arranged at intervals along the circumference of the support portion 711, and multiple sets of light-transmitting openings 7110 are provided accordingly.

[0286] Furthermore, such as Figure 13 , Figure 14 , Figure 17 As shown, the lower end of the connecting part 712 is provided with a bolt post, and the lamp holder 73 is provided with a connecting hole. A screw is connected between the connecting hole and the bolt post. Preferably, at least two sets of bolt posts are symmetrically provided on the connecting part 712 to further improve the stability of the connection between the lamp holder 73 and the display bracket 71.

[0287] In some embodiments, one of the mating parts of the display bracket 71 and the lamp holder 73 is provided with a positioning first slot 713 and the other is provided with a positioning rib 731; the positioning first slot 713 and the positioning rib 731 are inserted and mated to realize the limiting of the display bracket 71 and the lamp holder 73 in the circumferential direction.

[0288] In the above embodiments, the cooperation between the positioning rib 731 and the positioning first slot 713 not only enables the display bracket 71 and the lamp holder 73 to be limited in the circumferential direction, effectively preventing the display bracket 71 and the lamp holder 73 from rotating relative to each other during use or assembly, but also enables rapid positioning, allowing the screw connection structures on the display bracket 71 and the lamp holder 73 to be quickly aligned, simplifying the assembly alignment process and improving production efficiency.

[0289] Specifically, the display bracket 71 is provided with a positioning first slot 713, the lamp holder 73 is provided with a positioning rib 731, the bottom edge of the connecting part 712 of the display bracket 71 is provided with a notch, the notch forms the positioning first slot 713, and the bottom inner peripheral wall of the lamp holder 73 is provided with a strip rib, the strip rib forms the positioning rib 731.

[0290] Preferably, there are at least two sets of positioning ribs 731 and positioning first slots 713, which are arranged at intervals.

[0291] In some embodiments, such as Figure 14 and Figure 15 As shown, one of the mating parts of the lampshade 72 and the lamp holder 73 is provided with a limiting groove 732 and the other is provided with a limiting rib 721; the limiting groove 732 and the limiting rib 721 are in concave-convex fit to realize the limiting of the lampshade 72 and the lamp holder 73 in the circumferential direction.

[0292] In the above embodiment, the limiting groove 732 and the limiting rib 721 cooperate to limit the lamp cover 72 and the lamp holder 73 in the circumferential direction. The limiting groove 732 and the limiting rib 721, together with the positioning rib 731 and the positioning first slot 713, form a double anti-rotation mechanism to ensure that the lamp cover 72 can maintain high stability even in a vibration environment.

[0293] In some embodiments, the display module 70 further includes a display panel 79 and a decorative panel 75. The display panel 79 is mounted on the display bracket 71, and the display lamp 74 is disposed below the display panel 79 and corresponds to the lamp cover 72. The decorative panel 75 has a mounting position in the middle for mounting the display panel 79, and the display panel 79 is detachably mounted in the mounting position. The decorative panel 75 and the display bracket 71 are engaged and fixed by a snap-fit ​​structure.

[0294] In the above embodiment, by integrating the mounting position of the decorative panel 75 and installing the display panel 79 in the mounting position, the overall structure is relatively compact. The decorative panel 75 and the display bracket 71 are fixed by rotating and snapping together through a swivel structure, which can realize quick assembly and disassembly of the decorative panel 75 and the display bracket 71, and facilitates later maintenance.

[0295] Specifically, the display panel 79 is reliably fixed to the mounting position of the decorative panel 75 using four stainless steel self-tapping screws; the decorative panel 75 and the display bracket 71 are integrated with four sets of symmetrically distributed screw structures, and the decorative panel 75 and the display bracket 71 are precisely matched through the four sets of screw structures to achieve a 360° tightening connection.

[0296] In some embodiments, such as Figure 4 , Figure 13 and Figure 17As shown, the decorative panel 75 is fastened to the display bracket 71; the snap fastener structure includes a snap fastener 751 and a slot 714, one of which is disposed on the decorative panel 75 and the other on the display bracket 71; one of the snap fastener 751 and the slot 714 is provided with a locking protrusion 752 and the other with a locking groove 715; when the decorative panel 75 and the display bracket 71 are rotated and engaged to the set assembly position by the snap fastener 751 and the slot 714, the locking protrusion 752 and the locking groove 715 engage.

[0297] In the above embodiments, the snap fastener structure, by adopting a snap fastener 751 and a groove 714, has a simple structure and is easy to operate. Furthermore, the locking protrusion 752 and locking groove 715 correspondingly provided on the snap fastener 751 and the groove 714 can effectively prevent the snap fastener 751 from falling out of the groove 714 in the opposite direction, further improving the reliability of the connection and ensuring that the snap fastener 751 will not easily loosen even in a vibration environment. In addition, the locking protrusion 752 and locking groove 715 can provide clear tactile and audible feedback when the decorative panel 75 is engaged, resulting in a better assembly experience.

[0298] Specifically, the decorative panel 75 includes a panel body and a fastening part disposed below the panel body. The fastening part is cylindrical, and the outer periphery of the support part 711 is bent upward to form a folded edge. That is, the outer periphery of the support part 711 is bent upward to form a folded edge, and the fastening part extends into the folded edge. A swivel 751 is provided on the outer peripheral wall of the fastening part, and a swivel groove 714 is provided on the inner periphery of the folded edge. A portion of the swivel 751 is recessed inward to form a locking groove 715, and a locking protrusion 752 is fixedly disposed in the swivel groove 714. During assembly, the decorative panel 75 is fastened above the display bracket 71 and covers the display panel 79, the display bracket 71, and the lampshade 72. The fastening part extends into the folded edge above the display bracket 71, and then the decorative panel 75 is rotated along the set installation direction until the locking groove 715 engages with the locking protrusion 752.

[0299] In some embodiments, the display module 70 further includes a display panel 76 mounted above the decorative panel 75 and at least covering the display panel 79.

[0300] In the above embodiments, by providing a display panel 76 on the decorative panel 75, the gap between the display panel 79 and the decorative panel 75 can be hidden, resulting in a clean interface. Furthermore, the display panel 76 can effectively prevent dust from entering the display module 70 and extend the service life of the display module 70.

[0301] Specifically, the back of the display panel 76 is attached to the decorative panel 75 by a high-adhesion adhesive.

[0302] In some embodiments, the air purifier further includes a negative ion generator 214, which is mounted on the second bracket 213. The negative ion generator 214 can adsorb any residual particulate matter in the air passing through the upper air duct 212 by generating negative ions, thereby further purifying the air.

[0303] In some embodiments, the air purifier further includes a dust removal device 40, which is disposed on one side of the filter 31 and is used to clean the filter 31.

[0304] The air purifier proposed in this application mainly consists of a shell 10, an air inlet grille 11, a filter module 30, an ultraviolet sterilization module 60, a dust removal device 40, an upper fan assembly 21, and a lower fan assembly 22. This purifier employs a dual centrifugal fan system, with the two fans respectively placed in the upper air duct 212 and the lower air duct. An annular air inlet 100 is provided on the air inlet grille 11 of the shell 10, forming a purification method of air intake in the middle and air exhaust from the top and bottom. After purification, part of the air is blown upwards by the upper fan assembly 21, and the other part is blown downwards by the lower fan assembly 22 and discharged from all sides, ultimately forming the following configuration: Figure 5 The diagram shows a "surrounding" airflow path. Compared to traditional top and bottom air intake and center air exhaust, this solution avoids the problem of dust or foreign objects being easily drawn in when air is drawn in from the ground, leading to filter clogging, performance degradation, and shortened lifespan. Furthermore, common center air exhaust designs tend to create a noticeable direct airflow sensation, which can easily disturb users in quiet environments such as sleeping or working. The surrounding airflow created by this solution, with center air intake and top and bottom air exhaust, effectively eliminates the discomfort of direct airflow, allowing users to enjoy uniformly flowing clean air without feeling any discomfort while achieving purification, thus enhancing the user experience.

[0305] Furthermore, a filter module 30 integrating a HEPA high-efficiency particulate air filter and a composite activated carbon filter is installed at the air inlet 100. The composite activated carbon filter is placed inside the HEPA filter, together forming a cylindrical, independently replaceable filter unit. This design allows users to easily replace the failed filter section individually, avoiding the need for complete replacement of traditional integrated composite filters due to partial failure, thereby reducing maintenance costs and resource waste. At the same time, the central air intake and top-bottom air outlet layout only requires a single filter in the middle of the unit, making filter replacement and cleaning more convenient. In contrast, if a top-bottom air intake and central air outlet design were used, two sets of pre-filters would need to be installed at the top and bottom air inlets, increasing maintenance complexity and costs.

[0306] Furthermore, the central air intake and top-to-bottom air outlet structure helps to expand the functions of the air purifier. To avoid filter clogging and bacterial accumulation due to centralized purification at the air inlet 100, which would affect its service life, this embodiment preferably employs filter self-cleaning technology and an ultraviolet sterilization module 60 to centrally maintain the central filter, achieving both self-cleaning and sterilization functions. In contrast, the top-to-bottom air intake and central air outlet structure, with its dispersed filter element arrangement at the air inlet 100, makes it difficult to achieve the aforementioned centralized maintenance function.

[0307] This embodiment utilizes a top support assembly 32 above the filter screen 31 and a bottom support assembly 33 below it to facilitate centralized maintenance of the air inlet filter screen 100. The two support assemblies are connected by two intermediate support frames 34, which bear the main weight of the entire unit. The top support assembly 32 is driven by a stepper motor to rotate the filter screen 31, which is pre-tightened to it. The bottom support assembly 33 serves as a base, providing a platform for the filter screen 31 to rotate freely and support manual lifting. Users can control the filter screen 31 to rise by moving a lever, fixing it to the top support assembly 32 for rotation; moving the lever in the opposite direction lowers the filter screen 31 for easy removal.

[0308] Furthermore, the filter self-cleaning function is achieved by the dust removal device 40, which includes a dust collection base 41 and a dust collection assembly 42. The dust collection base 41 integrates a dust collection motor, a ventilation pipe, and a dust collection box, while the dust collection assembly 42 is equipped with a segmented, retractable brush head. The dust collection base 41 is fixed to the bottom support assembly 33 by clips and screws, and the top and bottom ends of the dust collection assembly 42 are connected to the top support assembly 32 and the bottom support assembly 33 by screws, respectively. When the air purifier enters the self-cleaning mode, under the negative pressure environment provided by the dust collection motor, the dust collection assembly 42 and its segmented, retractable brush head can perform layer-by-layer dust removal on the outer surface of the rotating filter 31, and the dust is collected in the dust collection box for convenient centralized disposal by the user. In the sterilization mode, the ultraviolet sterilization module 60, which is connected between the top support assembly 32 and the bottom support assembly 33 by screws, can irradiate the rotating filter 360°, effectively inhibiting bacterial growth, reducing the risk of microbial contamination, improving purification efficiency, and reducing secondary pollution.

[0309] Furthermore, this embodiment also includes a four-in-one sensor on the upper fan assembly 21 and a formaldehyde sensor 14 on the housing 10. The formaldehyde sensor 14 and the four-in-one sensor work together to monitor air quality in real time, enabling the purifier to dynamically adjust the purification mode according to different environments, thereby improving purification efficiency. Preferably, a cover plate 13 is provided on the back of the housing 10, and the formaldehyde sensor 14 is integrated on the cover plate 13. The top of the cover plate 13 is limited by the ribs on the side of the upper air duct 212, and the bottom of the cover plate 13 is fixed to the bottom of the filter top support assembly 32 by buckles and screws.

[0310] Furthermore, the air purifier also includes a support base 80, which supports the entire unit. The lower fan assembly 22 is connected to the vacuum base 41 via screws and clips, and fixed above the support base 80. The support base 80 is equipped with casters at the bottom, facilitating movement of the purifier to different locations. The first bracket 222 is fixed to the base with screws, and a bottom light assembly 90 is installed at its bottom via clips. The bottom light assembly 90 includes a light strip bracket 91 and a bottom ambient light strip 92. The bottom ambient light strip is embedded in the groove of the light strip bracket 91 and adopts an adjustable warm light design to avoid glare at night and optimize the user experience. The first fan 221 is installed inside the first bracket 222, and three flow openings 2220 are opened around its perimeter. Each flow opening 2220 has a specific slot for installing the deodorization module 50. The deodorization module 50 consists of three plasma generators 51, three metal mesh covers, and three ozone reduction meshes 53. It can efficiently decompose and neutralize TVOCs, odors, and other organic pollutants in the air passing through the lower air outlet 102. The plasma generators 51 produce high-density plasma, which catalyzes the degradation of harmful gases. The metal mesh covers are located between the ozone reduction meshes 53 and the plasma generators 51 and are grounded to prevent plasma leakage. The outermost ozone reduction meshes 53 prevent excessive ozone from escaping due to glow discharge.

[0311] Furthermore, the upper fan assembly 21 is fixed above the top support assembly 32 with screws. The upper fan assembly 21 includes an upper air duct 212, a second bracket 213, and a second fan 211. The second fan 211 is installed below the second bracket 213, and a display module 70 is installed above it. The display module 70 includes an indicator light 74, a lampshade 72, a lamp holder 73, an air quality light 77, and a lamp stand 78. The air quality light 77 is embedded in the groove of the lamp stand 78 and uses a ring-shaped LED matrix to dynamically display key indicators such as PM2.5 and formaldehyde in real time, allowing users to intuitively understand air quality and purification effects without the need for a screen or APP. A crystal sphere is mounted on the lamp holder 73, and a color display screen is integrated on its top for easy user operation of the entire unit. The crystal material forms a soft halo under the light, enhancing the product's visual style. In another embodiment, a liftable crystal sphere design can be adopted, which automatically rises when the unit is turned on and automatically lowers when it is turned off, enhancing aesthetics while giving users a sense of ritual in intelligent interaction.

[0312] Furthermore, to ensure the deodorization effect, the airflow through the deodorization module 50 needs to reach an appropriate air volume. When the purifier is in deodorization mode, the air volume at the lower air outlet 102 can be controlled by the first fan 221 to maintain an ideal air volume. At this time, the second fan 211 can still adjust the air volume at the upper air outlet 101 to continue purifying the air, thereby maximizing the purification performance and working efficiency of the whole machine in deodorization mode. When switching to normal purification mode, the deodorization module 50 can be turned off, and the speed of the two fans can be adjusted separately to achieve rapid purification.

[0313] The air purifier provided in this application expands its adaptability to multiple scenarios by integrating odor removal functionality. Based on the airflow path, it innovatively integrates a plasma generator 51, a metal mesh cover, and an ozone reduction mesh 53 to form an odor removal module 50. This module dynamically switches to odor removal mode according to environmental needs and works in conjunction with the first fan 221, automatically adjusting the airflow to optimal levels for efficient decomposition of TVOCs and odors. Simultaneously, the second fan 211 maintains basic purification efficiency, achieving efficient and safe odor removal and significantly improving the device's applicability and user experience in odorous environments. While ensuring the air purifier's performance, this application expands its functionality and purification modes, enhancing its reliability and adaptability in various application scenarios to meet diverse user needs and improve the user experience.

[0314] In some embodiments, such as Figure 2 and Figure 3 As shown, the air purifier also includes an air quality light 77 and a light holder 78. The air quality light 77 is used to display air quality information. The air quality light 77 is mounted on the light holder 78. The outer periphery of the second bracket 213 bends outward to form an installation space for mounting the light holder 78. The light holder 78 is embedded in the installation space.

[0315] In the above embodiment, the air quality light 77 can display air quality information in real time, eliminating the need to rely on a screen or app to intuitively perceive air quality, thus improving the user experience. Furthermore, the installation space formed by the outward folding of the second bracket 213 is used to install the light holder 78 and the air quality light 77, making the overall structure more compact and reducing the need for additional brackets, thereby lowering material costs and assembly steps.

[0316] Specifically, such as Figure 3 The second bracket 213, as shown, extends outwards a certain distance along its outer perimeter and then bends upwards, forming an upward-facing rolled edge. The air quality lamp 77 is annular, as is the lamp holder 78. The longitudinal section of the lamp holder 78 is H-shaped. The air quality lamp 77 is installed in the opening slot at the top of the H-shaped lamp holder 78. The H-shaped lamp holder 78 and the rolled edge together form a circumferentially enclosed installation space, providing a good limiting effect for the air quality lamp 77. The light from the air quality lamp 77 can be diffused through the lampshade 72, creating a highly three-dimensional effect and combining decorative and practical functions.

[0317] In this embodiment, the lamp holder 73 is installed above the second bracket 213. The outer surface of the lampshade 72 is a high-transmittance curved surface. Preferably, the lampshade 72 is a crystal ball, installed in the axial cavity of the display bracket 71 and the lamp holder 73, and fixed by screws. At the bottom, equally spaced limiting ribs 721 are provided to form a limiting fit with the limiting grooves 732 of the lamp holder 73, effectively preventing rotation. By utilizing the cooperation between the display bracket 71 and the lamp holder 73 and the limiting structure, the lampshade 72 is fixed, ensuring its integrity and avoiding any impact on the display effect caused by screw holes or other connection structures on the lampshade 72. Light-transmitting openings 7110 are opened corresponding to the positions of the display lamps 74 on the display bracket 71 and the display panel 79. The light emitted by the display lamps 74 is precisely irradiated onto the crystal ball through the light-transmitting openings 7110. After refraction and scattering by its high-transmittance curved surface, a soft, three-dimensional halo effect is presented, resulting in a refined and high-end appearance.

[0318] Although 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 all fall within the protection scope of the embodiments of this application.

Claims

1. An air purifier, characterized in that, include: The outer casing (10) is provided with an air inlet (100) and an air outlet; The deodorization module (50) is disposed on the airflow path between the air inlet (100) and the air outlet. The deodorization module (50) includes a plasma generator (51) and an overflow screen (52). The plasma generator (51) can generate plasma by discharge to decompose odors in the air. The anti-overflow mesh cover (52) is set on the side of the plasma generator (51) near the air outlet to prevent the plasma from overflowing. The plasma generating device (51) includes a mounting frame (511) and several electrode structures (512). Several electrode structures (512) are arranged at intervals on the mounting frame (511) along the length direction of the mounting frame (511); There is a discharge gap between two adjacent electrode structures (512) and between the electrode structure (512) and the mounting bracket (511) for airflow to pass through; The plasma generating device (51) further includes: An elastic buffer (515) is detachably mounted on the mounting bracket (511). An electrical limit groove (5151) is formed on the elastic buffer (515). Both ends of the electrode structure (512) are respectively limited and fixed in the electrical limit groove (5151). The plasma generating device (51) further includes: A pressure plate (516) is detachably connected to the mounting bracket (511) and presses the elastic buffer (515) tightly onto the mounting bracket (511); The pressure plate (516) is provided with a buckle (5161), the mounting bracket (511) is provided with a slot (51111), and the elastic buffer (515) is provided with a through hole (5152). The buckle (5161) passes through the through hole (5152) and connects with the slot (51111).

2. The air purifier according to claim 1, characterized in that, The electrode structure (512) includes: Insulating tube (5122); The inner electrode (5121) is inserted inside the insulating tube (5122); The outer electrode (5123) is spirally wound around the outside of the insulating tube (5122); A conductive sleeve (5124) is fixed and covers at least one end of the outer electrode (5123), and the outer electrode (5123) is connected to a power source through the conductive sleeve (5124).

3. The air purifier according to claim 2, characterized in that, The plasma generating device (51) further includes: The low-voltage connecting plate (513) is fixedly connected to the conductive sleeve (5124) to form an electrical connection, and the external electrode (5123) forms a conductive path with the power supply through the conductive sleeve (5124) and the low-voltage connecting plate (513). The high-voltage connecting plate (514) has an inner electrode (5121) extending from the insulating tube (5122) near the conductive sleeve (5124) and forming a conductive path with the power source through the high-voltage connecting plate (514).

4. The air purifier according to any one of claims 1 to 3, characterized in that, The air outlet includes a lower air outlet (102) located at the bottom of the housing (10), and the air purifier further includes: The lower fan assembly (22) is located at the bottom of the housing (10). The lower fan assembly (22) includes a first fan (221) and a first bracket (222) for mounting the first fan (221). The plasma generator (51) is installed on the outer periphery of the first support (222) and corresponds to the lower air outlet (102). The plasma generator (51) and the first support (222) enclose each other to form a lower air duct. The lower air duct connects the air inlet (100) and the lower air outlet (102). The first fan (221) is located in the lower air duct.

5. The air purifier according to claim 4, characterized in that, The lower air outlet (102) is distributed on at least two sides of the outer casing (10); The plasma generating device (51) is provided with at least two sets, and the at least two sets of plasma generating devices (51) are provided on at least two sides of the first bracket (222) corresponding to the lower air outlet (102); At least two sets of plasma generating devices (51) are enclosed with the first support (222) to form a downdraft duct that is closed at the bottom, draws air at the top, and discharges air from at least two sides.

6. The air purifier according to claim 4, characterized in that, The first bracket (222) is a frame structure, and the first bracket (222) has an overflow opening (2220) on one side corresponding to the lower air outlet (102). A first slot (2221) is formed on the first support (222), and the plasma generator (51) is inserted into the first slot (2221) and corresponds to the flow opening (2220); A second slot is also formed on the first bracket (222), the second slot is located between the first slot (2221) and the lower air outlet (102), the anti-overflow mesh cover (52) is inserted into the second slot, and both the plasma generator (51) and the anti-overflow mesh cover (52) can allow airflow to pass through.

7. The air purifier according to any one of claims 1 to 3, characterized in that, The overflow protection mesh (52) is a metal mesh and is connected to the ground wire; and / or, An electrode mounting area is formed in the mounting frame (511) of the plasma generator (51), through which the airflow can pass, and the anti-overflow mesh cover (52) at least shields and covers the electrode mounting area.

8. The air purifier according to any one of claims 1 to 3, characterized in that, The deodorization module (50) also includes: Ozone reduction net (53) is disposed between the overflow net cover (52) and the air outlet.

9. The air purifier according to any one of claims 1 to 3, characterized in that, The air inlet (100) is located in the middle of the outer casing (10), and the air outlet also includes an upper air outlet (101) located on the top of the outer casing (10). The air purifier also includes: The upper fan assembly (21) is located at the top inside the housing (10) and is used to drive external air to flow from the air inlet (100) to the upper air outlet (101).

10. The air purifier according to claim 9, characterized in that, The air purifier also includes: The display module (70) is integrated on the upper fan assembly (21), and the top of the housing (10) is open to form the upper air outlet (101). An air outlet grille (12) is installed inside the upper air outlet (101). The air outlet grille (12) is annular, and an opening is formed in the middle of the air outlet grille (12) to allow the display module (70) to be exposed.

11. The air purifier according to claim 10, characterized in that, The display module (70) includes: Display bracket (71) and display lamp (74) mounted on the display bracket (71); The lampshade (72) and the lamp holder (73) for supporting the lampshade (72) are made of crystal or crystal-like light-transmitting material; The display bracket (71) passes at least partially through the lampshade (72) and is detachably connected to the lamp holder (73) to limit the lampshade (72) between the display bracket (71) and the lamp holder (73); The indicator light (74) is configured to emit light, and the light is capable of shining on the lampshade (72) and being refracted and / or scattered by the lampshade (72).

12. The air purifier according to any one of claims 1 to 3, characterized in that, The air purifier also includes: The filter module (30) includes a filter support structure and a filter (31) disposed at the air inlet (100). A filter installation space is formed in the filter support structure, and the filter (31) is rotatably installed in the filter installation space. The ultraviolet sterilization module (60) is installed on the filter support structure and located on one side of the filter (31) for ultraviolet sterilization of the filter (31).

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