Consumable-free dust removal fan

Abstract

The invention provides a consumable-free dust removal fan, and belongs to the technical field of fans, the consumable-free dust removal fan comprises a shell, a fan assembly and an electrostatic dust removal assembly, and the shell is provided with a through airflow channel; the fan assembly is arranged in the airflow channel and comprises a driving module and a fan blade module connected to the driving module; the electrostatic dust collection assembly comprises an ionization frame and a dust collection frame which are detachably connected, the ionization frame and the dust collection frame form a containing space in the axial direction, the electrostatic dust collection assembly further comprises a positive electrode module and a negative electrode module which are arranged in the containing space, and an ionization piece which is located outside the containing space and connected to the ionization frame, and the ionization piece is detachably connected with the ionization frame. The consumable-free dust removal fan aims at solving the problems that an electrostatic dust removal structure of a fan in the prior art is inconvenient to clean, disassemble and assemble, so that the replacement efficiency is low, and the replacement cost is high.

Description

Technical Field

[0001] The present invention belongs to the technical field of fans, and more particularly, relates to a consumable-free dust removal fan. Background Art

[0002] Currently, fan dust removal primarily relies on physical filtration technologies, such as HEPA filters and activated carbon, which are consumable filters. Over time, dust trapped by the filters accumulates, increasing ventilation resistance and severely impacting the fan's airflow efficiency and dust removal effectiveness. To maintain dust removal performance, filters must be replaced regularly, increasing costs and inconvenience. Furthermore, discarded filters pollute the environment, which is inconsistent with the concept of sustainable development.

[0003] Although fan dust removal devices that use the principle of electrostatic dust removal can efficiently adsorb fine particles, they also have defects in actual use. After the positive and negative electrodes and dust collecting plates of this type of device adsorb a large amount of dust, the electrostatic adsorption efficiency will drop significantly, and regular cleaning and maintenance are required. However, the existing electrostatic dust removal structure mostly adopts an integrated design. The disassembly steps of the electrodes and dust collecting plates are cumbersome and even require professional tools and skills, which makes it extremely difficult for users to clean them themselves. In order to avoid damage to the equipment due to disassembly, some products need to be returned to the factory for maintenance, which is time-consuming and increases maintenance costs. In addition, if cleaning is not timely, dust accumulation on the electrodes may also cause a short circuit, affecting the normal operation of the equipment and even posing a safety hazard. Therefore, the existing fan dust removal technology is difficult to meet users' needs for efficient, convenient, and low-cost dust removal equipment due to problems such as high replacement costs of consumables and inconvenient disassembly of electrostatic dust removal structures. There is an urgent need to develop new technical solutions to solve these problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a consumables-free dust removal fan, aiming to solve the problem in the prior art that the electrostatic dust removal structure of the fan is inconvenient to clean and disassemble, resulting in low replacement efficiency and high replacement cost.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] In a first aspect, a consumables-free dust removal fan is provided, comprising:

[0007] The housing has a through-going airflow channel;

[0008] a fan assembly disposed in the airflow channel, the fan assembly comprising a drive module and a fan blade module connected to the drive module; and

[0009] The electrostatic precipitator assembly includes a detachably connected ionization frame and a dust collecting frame, wherein the ionization frame and the dust collecting frame form an accommodating space in the axial direction, and further includes a positive electrode module and a negative electrode module arranged in the accommodating space, and an ionization element located outside the accommodating space and connected to the ionization frame, wherein the ionization element is detachably connected to the ionization frame.

[0010] In one possible implementation, the dust collecting rack includes a limiting cylinder and a dust collecting ring coaxially sleeved outside the limiting cylinder, and also includes a plurality of dust collecting fins radially distributed outside the limiting cylinder and extending along the inward and outward directions, the inward and outward directions are parallel to the radial direction of the limiting cylinder, and the dust collecting fins are used to connect the limiting cylinder and the dust collecting ring.

[0011] In one possible implementation, the positive electrode module includes a positive electrode connecting ring and a plurality of positive electrode sheets radially distributed on the positive electrode connecting ring, and a pressure difference gap is formed between two adjacent positive electrode sheets. The negative electrode module includes a negative electrode connecting ring and a plurality of negative electrode sheets radially distributed on the negative electrode connecting ring, and the negative electrode sheets correspond one-to-one to the pressure difference gap and are inserted into the pressure difference gap.

[0012] In one possible implementation, the positive electrode module also includes a positive electrode fixing ring coaxially arranged with the positive electrode connecting ring, one end of the positive electrode sheet is connected to the positive electrode connecting ring, and the other end is connected to the positive electrode fixing ring; the negative electrode module also includes a negative electrode fixing ring coaxially arranged with the negative electrode connecting ring, one end of the negative electrode sheet is connected to the negative electrode connecting ring, and the other end is connected to the negative electrode fixing ring.

[0013] In one possible implementation, the limiting cylinder and / or the dust collecting ring is provided with a plurality of mounting grooves, and the plurality of mounting grooves are distributed along the circumference of the limiting cylinder or the dust collecting ring, and the positive electrode sheet and the negative electrode sheet are respectively inserted into the corresponding mounting grooves.

[0014] In a possible implementation, the ionization element includes:

[0015] an ionizing wire, disposed on a side of the ionizing frame facing away from the accommodation space; and

[0016] The fixing block is connected to the ionization wire and is detachably connected to the ionization frame.

[0017] In a possible implementation, the ionization frame includes:

[0018] a main frame connected to the dust collecting rack and forming the accommodating space together with the dust collecting rack; and

[0019] The mounting frame is detachably connected to the main frame; the ionizer is connected to a side of the mounting frame facing away from the main frame.

[0020] In one possible implementation, the ionization frame includes a coaxially arranged ionization inner ring and an ionization outer ring, and also includes an ionization sheet connected to the ionization inner ring and the ionization outer ring. A receiving groove is provided at the connection between the ionization sheet and the ionization inner ring or the ionization outer ring, and the ionization component is arranged in the receiving groove.

[0021] In a possible implementation, the inner circumference and / or outer circumference of the ionization rack is further provided with a first connecting column, the dust collecting rack is provided with a second connecting column corresponding to the first connecting column, and the first connecting column and the second connecting column are detachably connected.

[0022] In one possible implementation, the electrostatic precipitator assembly further includes an isolation ring axially arranged between the positive electrode module and the negative electrode module. The isolation ring is an insulating component and is in contact with the positive electrode module and the negative electrode module, respectively, for isolating the positive electrode module and the negative electrode module.

[0023] The beneficial effect of the consumable-free dust removal fan provided by the present invention is that: compared with the prior art, the ionization frame and the dust collection frame adopt a detachable connection method, which greatly simplifies the disassembly process. The user does not need to use professional tools, and the professional skills required of the user are relatively low. The two can be easily separated, effectively solving the problem of cumbersome disassembly of traditional electrostatic dust removal structures and greatly improving replacement efficiency. At the same time, the ionization frame and the ionization component are also detachably connected, making the replacement of each component more convenient, avoiding the high cost problem of overall replacement due to local damage, and significantly reducing the cost of use. In terms of ionization dust removal effect, the accommodating space formed by the ionization frame, the dust collection frame and the positive and negative electrode modules can form an efficient and stable electrostatic field. The ionization component can quickly charge fine particles in the air. The reasonable layout of the positive and negative electrode modules ensures that the charged particles are effectively adsorbed to the dust collection frame, achieving efficient interception of dust, and ensuring that the dust removal fan maintains excellent dust removal performance for a long time, providing users with an efficient, convenient and low-cost dust removal solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 A schematic structural diagram of a consumables-free dust removal fan provided in Example 1 of the present invention;

[0026] Figure 2 A schematic diagram of the internal structure of a consumables-free dust removal fan provided in Example 1 of the present invention;

[0027] Figure 3 This is an exploded view of the electrostatic precipitator assembly used in Example 1 of the present invention;

[0028] Figure 4 This is a schematic structural diagram of an electrostatic precipitator assembly used in Example 1 of the present invention;

[0029] Figure 5 for Figure 4 Cross-sectional structural diagram along line AA;

[0030] Figure 6 for Figure 5 A partial enlarged view of part B in FIG;

[0031] Figure 7 This is a schematic structural diagram of an electrostatic precipitator assembly used in Example 2 of the present invention;

[0032] Figure 8 This is a diagram of the internal structure of the electrostatic precipitator assembly used in Example 3 of the present invention;

[0033] Figure 9 This is a structural diagram of the positive electrode module and the negative electrode module used in Example 3 of the present invention;

[0034] Figure 10 This is a schematic structural diagram of the fan blade module used in Example 1 of the present invention.

[0035] In the figure: 1. Shell; 2. Fan assembly; 201. Connecting shaft; 202. Fan blade; 2021. Tail area; 2021-1. Tail body; 2021-2. Tail flange; 2022. Diversion area; 2022-1. Connecting part; 2022-2. Diversion groove; 203. Air duct; 2031. Reinforcement groove; 3. Electrostatic dust removal assembly; 301. Dust collection rack; 3011. Limiting cylinder; 3012. Dust collection ring; 3013. Dust collection fin; 3014. Second connecting column; 3015. Mounting groove; 3016. Mounting position ;302, ionization frame; 3021, first connecting column; 3022, main frame; 3023, mounting frame; 3024, ionization inner ring; 3025, ionization outer ring; 3026, ionization sheet; 303, positive module; 3031, positive connecting ring; 3032, positive fixing ring; 3033, positive electrode sheet; 304, negative module; 3041, negative connecting ring; 3042, negative fixing ring; 3043, negative electrode sheet; 305, isolation ring; 306, ionization component; 3061, ionization wire; 3062, fixing block. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0037] In the claims, specification and the above-mentioned drawings of the present invention, unless otherwise expressly limited, the terms "first", "second" or "third" are used to distinguish different objects, rather than to describe a specific order. Unless otherwise specified, other directional words, such as "vertical", "clockwise", "counterclockwise" and the like, indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the specific scope of protection of the present invention. In the claims, specification and the above-mentioned drawings of the present invention, unless otherwise expressly limited, the terms "fixed connection" or "fixed connection" should be understood in a broad sense, that is, any connection method without a displacement relationship or relative rotation relationship between the two, that is, including non-detachable fixed connection, detachable fixed connection, integrated connection and fixed connection through other devices or elements. In the claims, specification and the above-mentioned drawings of the present invention, the terms "including", "having" and their variations are intended to mean "including but not limited to".

[0038] Please also refer to Figures 1 to 10 The consumable-free dust removal fan provided by the present invention is now described. The consumable-free dust removal fan includes a housing 1, a fan assembly 2, and an electrostatic dust removal assembly 3. The housing 1 has a through airflow channel; the fan assembly 2 is arranged in the airflow channel, and the fan assembly 2 includes a drive module and a fan blade 202 module connected to the drive module; the electrostatic dust removal assembly 3 includes a detachably connected ionization frame 302 and a dust collection frame 301, the ionization frame 302 and the dust collection frame 301 forming an accommodating space in the axial direction, and also includes a positive electrode module 303 and a negative electrode module 304 arranged in the accommodating space, and an ionization member 306 located outside the accommodating space and connected to the ionization frame 302, and the ionization member 306 is detachably connected to the ionization frame 302.

[0039] The consumable-free dust removal fan provided by the present invention, compared with the prior art, adopts a detachable connection method for the ionization frame 302 and the dust collection frame 301, which greatly simplifies the disassembly process. The user does not need to use professional tools, and the professional skills required for the user are relatively low. The two can be easily separated, effectively solving the problem of cumbersome disassembly of the traditional electrostatic dust removal structure and greatly improving the replacement efficiency. At the same time, the ionization frame 302 and the ionization element 306 are also detachably connected, making it easier to replace each component, avoiding the high cost problem of overall replacement due to local damage, and significantly reducing the cost of use. In terms of ionization dust removal effect, the accommodating space formed by the ionization frame 302, the dust collection frame 301 and the positive and negative electrode modules 304 can form an efficient and stable electrostatic field. The ionization element 306 can quickly charge fine particles in the air. The reasonable layout of the positive and negative electrode modules 304 ensures that the charged particles are effectively adsorbed to the dust collection frame 301, achieving efficient interception of dust, ensuring that the dust removal fan maintains excellent dust removal performance for a long time, and providing users with an efficient, convenient and low-cost dust removal solution.

[0040] Working principle and process of electrostatic dust removal:

[0041] The ionization element 306 is detachably connected to the ionization rack 302, and a strong electric field (corona zone) is formed around it when energized. When air flows through the storage space between the ionization rack 302 and the dust collection rack 301, the strong electric field ionizes the neutral molecules in the air, generating a large number of free electrons and positive ions. When fine particles such as dust and smoke in the air (particle size is usually 0.01-10 microns) collide with free electrons or ions, they capture charges and become charged particles. The positive module 303 (such as an anode plate) and the negative module 304 (such as a cathode line) in the storage space form a non-uniform electrostatic field. The electric field intensity is high near the negative module 304 (cathode), which is the ionization zone and is mainly responsible for the charging of the particles; the electric field intensity is low near the positive module 303 (anode) but the range is wide, forming an adsorption zone that attracts charged particles to move toward it. Under the influence of the electric field, negatively charged particles migrate toward the positive electrode module 303 (anode) and are ultimately adsorbed onto the surface of the dust collecting plate (typically connected to the positive electrode module 303) of the dust collecting rack 301. During this process, the electric field overcomes air resistance, allowing the particles to settle efficiently, while clean air is discharged through the fan assembly 2.

[0042] Optionally, the dust collecting rack 301 has a mounting position 3016 for connecting to the housing 1. For example, the dust collecting rack 301 has a first mounting hole, which forms the mounting position 3016. The housing 1 has a second mounting hole adapted to fit the first mounting hole. Threaded members or clips are inserted into the first and second mounting holes to secure the dust collecting rack 301.

[0043] It should be noted that the shell 1 in this application is a general term, which includes not only the outer shell of the fan, but also other components located in the outer shell, such as the bracket connecting the electrostatic dust removal component 3 and the outer shell.

[0044] In some embodiments, see Figure 3 The dust collecting rack 301 includes a limiting cylinder 3011 and a dust collecting ring 3012 coaxially sleeved outside the limiting cylinder 3011, and also includes a plurality of dust collecting fins 3013 radially distributed outside the limiting cylinder 3011 and extending along the inward and outward directions. The inward and outward directions are parallel to the radial direction of the limiting cylinder 3011. The dust collecting fins 3013 are used to connect the limiting cylinder 3011 and the dust collecting ring 3012.

[0045] In this embodiment, the limiting cylinder 3011 and the dust collection ring 3012 are coaxially arranged, and in conjunction with the radially distributed dust collection fins 3013, a three-dimensional dust collection space is constructed. This significantly increases the dust collection area, allowing charged particles to more fully contact the dust collection components, effectively improving the adsorption efficiency of fine particles. The dust collection fins 3013 extend radially along the limiting cylinder 3011 and connect the limiting cylinder 3011 and the dust collection ring 3012, forming a stable support structure. While ensuring the dust collection area, it also enhances the stability of the overall structure, prevents component deformation caused by airflow impact, and ensures the long-term and reliable operation of the electrostatic dust removal function.

[0046] Optionally, the limiting cylinder 3011, the dust collecting ring 3012 and the dust collecting fins 3013 can be an integral component or a split detachable component. The split structure makes each component easy to disassemble and clean. The user can easily clean the limiting cylinder 3011, the dust collecting ring 3012 and the dust collecting fins 3013 separately, which effectively solves the problem of many cleaning dead corners and difficult removal of dust in traditional dust collecting structures, reduces the difficulty of maintenance, reduces the risk of equipment failure due to dust accumulation, significantly extends the service life of the dust removal fan, and brings users an efficient and worry-free use experience.

[0047] In some embodiments, see Figures 3 to 9 The positive electrode module 303 includes a positive electrode connecting ring 3031 and a plurality of positive electrode sheets 3033 radially distributed on the positive electrode connecting ring 3031, and a pressure difference gap is formed between two adjacent positive electrode sheets 3033. The negative electrode module 304 includes a negative electrode connecting ring 3041 and a plurality of negative electrode sheets 3043 radially distributed on the negative electrode connecting ring 3041. The negative electrode sheets 3043 correspond to the pressure difference gap one by one and are inserted into the pressure difference gap.

[0048] The positive electrode sheets 3033 are radially distributed on the positive connecting ring 3031, and the negative electrode sheets 3043 are correspondingly inserted in the pressure difference gap formed by the adjacent positive electrode sheets 3033. This staggered layout can form a highly uniform and strong gradient electrostatic field between the two. The existence of the pressure difference gap enables the electric field strength to be enhanced in the local area, prompting the charged particles to move and adsorb toward the positive electrode sheet 3033 more quickly and accurately, effectively improving the capture efficiency of fine particles. At the same time, the radial distribution method greatly expands the coverage range of the electrode sheets, increases the probability of contact between the charged particles and the electrodes, and further optimizes the dust removal effect. In addition, this modular design allows the positive and negative electrode components to be disassembled independently, making it convenient for users to clean and maintain the electrode sheets, avoiding the impact of dust accumulation on the electric field strength, ensuring the long-term stability of the electrostatic dust removal performance, and taking into account the dual advantages of efficient dust removal and convenient maintenance.

[0049] Optionally, the positive electrode sheet 3033 is connected to the inner or outer circumference of the positive electrode connecting ring 3031, or to the end face of the positive electrode connecting ring 3031. Similarly, the negative electrode sheet 3043 is connected to the inner or outer circumference of the negative electrode connecting ring 3041, or to the end face of the negative electrode connecting ring 3041.

[0050] Optionally, the positive electrode sheet 3033 and the negative electrode sheet 3043 are each provided with a limiting groove, and the positive electrode connecting ring 3031 and the negative electrode connecting ring 3041 are respectively disposed within the corresponding limiting groove. By providing the limiting grooves on the electrode sheets, the positive and negative electrode connecting rings 3041 are precisely fitted into them, forming a tight and stable connection structure. This effectively prevents loosening or displacement of the electrode sheets and connecting rings due to airflow vibration during fan operation, ensuring stable output of the electrostatic field and protecting dust removal performance.

[0051] Optionally, the positive electrode connection ring 3031 and the positive electrode sheet 3033, and the negative electrode connection ring 3041 and the negative electrode sheet 3043 are integrally formed, or can be detachably connected by plugging or snapping. If a detachable connection solution is adopted, an electrode sheet can be cleaned or replaced in time.

[0052] Optionally, the distance between the positive electrode sheet 3033 and the two connected negative electrode sheets 3043 is the same.

[0053] In some embodiments, see Figure 3 The positive electrode module 303 also includes a positive electrode fixing ring 3032 coaxially arranged with the positive electrode connecting ring 3031, one end of the positive electrode sheet 3033 is connected to the positive electrode connecting ring 3031, and the other end is connected to the positive electrode fixing ring 3032; the negative electrode module 304 also includes a negative electrode fixing ring 3042 coaxially arranged with the negative electrode connecting ring 3041, one end of the negative electrode sheet 3043 is connected to the negative electrode connecting ring 3041, and the other end is connected to the negative electrode fixing ring 3042.

[0054] The two ends of the positive electrode sheet 3033 are respectively connected to the positive electrode connecting ring 3031 and the positive electrode fixing ring 3032, and the negative electrode sheet 3043 is correspondingly connected to the negative electrode connecting ring 3041 and the negative electrode fixing ring 3042. This double-end fixed structure forms a stable triangular support system, which greatly enhances the electrode sheet's ability to resist deformation, effectively resists the impact and vibration of airflow when the fan is running, and avoids uneven electric field distribution caused by shaking of the electrode sheet, thereby ensuring the stability and sustainability of electrostatic dust removal. At the same time, the coaxially arranged fixing ring and connecting ring can make the electrode sheet evenly stressed in the radial direction, ensuring that the electric field evenly covers the entire dust removal area and improving the adsorption efficiency of fine particles. In addition, this design makes the electrode assembly form a modular whole. During cleaning and maintenance, the fixing ring, connecting ring and electrode sheet can be quickly disassembled as a whole without having to handle individual components one by one, which significantly simplifies the maintenance process, reduces cleaning time and operation difficulty, and extends the service life of the dust removal fan.

[0055] Specifically, the positive electrode connecting ring 3031 , the negative electrode connecting ring 3041 , the positive electrode fixing ring 3032 , and the negative electrode fixing ring 3042 are all conductive members.

[0056] In some embodiments, see Figure 8 The limiting cylinder 3011 and / or the dust collecting ring 3012 are provided with a plurality of mounting grooves 3015, and the plurality of mounting grooves 3015 are distributed along the circumference of the limiting cylinder 3011 or the dust collecting ring 3012, and the positive electrode sheet 3033 and the negative electrode sheet 3043 are respectively inserted into the corresponding mounting grooves 3015.

[0057] A plurality of circumferentially distributed mounting grooves 3015 not only provide precise positioning and mounting references for the positive and negative electrode sheets, but also enable the electrode sheets to be quickly and accurately embedded in designated positions, significantly shortening assembly time and improving production efficiency. At the same time, this plug-in installation method also enhances the stability of the connection between the electrode sheet and the dust collecting rack 301, effectively preventing the electrode sheet from being displaced due to airflow impact or vibration during fan operation, ensuring the stable distribution of the electrostatic field, and thus ensuring the dust removal effect. In addition, when the electrode sheet needs to be cleaned or replaced, the user can easily pull it out of the mounting groove 3015. The operation is simple and convenient, without the need for complex tools or professional skills, which significantly reduces the difficulty of maintenance. Moreover, the modular design of the mounting groove 3015 enables the electrode sheet and the dust collecting rack 301 to be flexibly combined and disassembled, facilitating product upgrades and replacements of parts, which not only extends the service life of the equipment, but also reduces the overall maintenance cost, fully meeting the user's demand for efficient and convenient dust removal equipment.

[0058] Optionally, the mounting groove 3015 extends radially along the limiting cylinder 3011 .

[0059] In some embodiments, see Figure 7The ionization element 306 includes an ionization wire 3061 and a fixing block 3062 . The ionization wire 3061 is arranged on a side of the ionization frame 302 away from the accommodation space; the fixing block 3062 is connected to the ionization wire 3061 and is detachably connected to the ionization frame 302 .

[0060] Placing the ionization wire 3061 on the side of the ionization rack 302 facing away from the storage space effectively expands the ionization range without occupying the internal dust removal space, allowing the air flowing through the fan to more fully contact the strong electric field generated by the ionization wire 3061, quickly achieving particle charging, and thus improving overall dust removal efficiency. The detachable connection between the fixed block 3062 and the ionization rack 302 greatly simplifies the installation and maintenance process of the ionization wire 3061. Users can easily remove the fixed block 3062 and clean or replace the ionization wire 3061 without complex operations, preventing dust accumulation from affecting the ionization effect and ensuring long-term stable operation of the equipment. In addition, the modular structural design also reduces the maintenance cost of the ionization component 306 when it is damaged. In the event of a failure, only the corresponding component needs to be replaced, without having to replace the entire ionization assembly, saving time and reducing resource waste.

[0061] Optionally, the ionization frame 302 is provided with a fixing groove, and the fixing block 3062 is inserted into the fixing groove. The fixing block 3062 is snap-connected or screw-connected to the ionization frame 302.

[0062] Optionally, the ionization filaments 3061 can be connected end to end to form a closed ring structure or a polygonal structure, such as a five-pointed star structure. The unique five-pointed star shape significantly increases the surface area and number of edges and corners of the ionization filament 3061, allowing it to form a more complex and widely distributed strong electric field region after power is applied, greatly improving the air ionization efficiency. Compared to traditional straight or simple-shaped ionization filaments 3061, the five-pointed star structure can make the contact area and contact angle between the air flowing through the fan and the ionization filament 3061 more diverse, prompting more fine particles to be quickly charged, effectively improving the dust removal effect. At the same time, its unique geometric symmetry ensures the uniformity of the electric field distribution, avoiding dust removal blind spots caused by localized weak electric fields.

[0063] In some embodiments, see Figure 7 The ionization frame 302 includes a main frame 3022 and a mounting frame 3023. The main frame 3022 is connected to the dust collecting frame 301 and forms a storage space with the dust collecting frame 301; the mounting frame 3023 is detachably connected to the main frame 3022; the ionization element 306 is connected to the side of the mounting frame 3023 away from the main frame 3022.

[0064] The main frame 3022 and the dust collection rack 301 form a storage space, providing a stable installation environment for the positive and negative electrode modules, ensuring the accuracy and stability of the electrostatic field, and thus guaranteeing dust removal efficiency. The detachable mounting frame 3023, combined with the main frame 3022, separates the installation and maintenance of the ionizer 306 from the overall structure. Users do not need to disassemble the complex dust collection rack 301, positive and negative electrode modules 304, and main frame 3022. They only need to disassemble the mounting frame 3023 to clean, repair, or replace the ionizer 306, greatly simplifying the maintenance process and reducing operational difficulty and time costs.

[0065] Optionally, the mounting frame 3023 can be detachably connected to the dust collecting frame 301, for example, by screwing or clamping.

[0066] Optionally, the main frame 3022 is snap-connected or screw-connected to the mounting frame 3023 , the main frame 3022 is provided with a slot, and the mounting frame 3023 has a snap-connecting piece adapted to the slot, and the snap-connecting piece is snap-connected in the slot along the circumferential direction or the axial direction.

[0067] In some embodiments, see Figure 3 The ionization frame 302 includes a coaxially arranged ionization inner ring 3024 and an ionization outer ring 3025, and also includes an ionization piece 3026 connected to the ionization inner ring 3024 and the ionization outer ring 3025. A receiving groove is provided at the connection between the ionization piece 3026 and the ionization inner ring 3024 or the ionization outer ring 3025, and the ionization element 306 is arranged in the receiving groove.

[0068] The coaxially arranged inner and outer ionization rings 3024 and 3025, along with the ionization plate 3026 connecting them, effectively enhance the overall strength of the ionization frame 302, enabling it to withstand airflow impact when the fan is running, ensuring the stability of the internal electric field distribution and laying the foundation for efficient dust removal. The accommodating groove at the connection between the ionization plate 3026 and the inner and outer ionization rings 3024 and 3025 provides a precise and secure installation space for the ionization element 306, improving the installation efficiency of the ionization element 306. Furthermore, the accommodating groove design facilitates the installation and removal of the ionization element 306. When the ionization element 306 needs to be cleaned or replaced, the user can quickly remove it from the groove, making operation simple and convenient, significantly reducing maintenance difficulty.

[0069] In some embodiments, see Figure 7 The inner and / or outer surfaces of the ionization frame 302 are further provided with a first connecting column 3021, and the dust collecting frame 301 is provided with a second connecting column 3014 corresponding to the first connecting column 3021, and the first connecting column 3021 and the second connecting column 3014 are detachably connected.

[0070] The ionization rack 302 and the dust collection rack 301 are detachably connected via a first connecting post 3021 and a second connecting post 3014, allowing for quick alignment and assembly during installation, significantly improving production and assembly efficiency. The stable column connection structure effectively resists vibration and airflow impact during fan operation, ensuring stable operation of the electrostatic precipitator assembly 3 and maintaining efficient dust removal performance. Furthermore, the first connecting post 3021 is located on the inner and / or outer circumference of the ionization rack 302 to prevent interference with the positive and negative modules 304.

[0071] Optionally, the first connecting post 3021 is screwed or clipped to the second connecting post 3014. For example, the first connecting post 3021 and the second connecting post 3014 may have corresponding connecting holes, into which locking members may be inserted. Alternatively, the first connecting post 3021 may have a connecting hole, into which the second connecting post 3014 may be inserted.

[0072] In some embodiments, see Figures 5 and 6 The electrostatic precipitator assembly 3 also includes an isolation ring 305 axially arranged between the positive module 303 and the negative module 304. The isolation ring 305 is an insulating component and is in contact with the positive module 303 and the negative module 304 respectively, and is used to isolate the positive module 303 and the negative module 304.

[0073] Isolation ring 305 is axially positioned between the positive and negative electrode modules 304, maintaining close contact with both. As an insulating component, it effectively blocks direct electrical connection between the positive and negative electrodes, preventing short circuits caused by factors such as dust accumulation and moisture. This significantly improves the safety of equipment operation and avoids equipment failures and even safety hazards caused by short circuits. Furthermore, isolation ring 305 precisely separates the positive and negative electrode modules 304, ensuring they form stable and independent electric field regions during operation. This prevents mutual interference between the electric fields and allows charged particles to be accurately adsorbed to the dust collection components along the planned electric field path, effectively improving dust removal efficiency.

[0074] As a specific embodiment of the fan assembly 2, please refer to Figure 2 and Figure 10 The fan blade 202 module includes a connecting shaft 201 connected to the driving module and a plurality of fan blades 202 connected to the outer peripheral surface of the connecting shaft 201. The plurality of fan blades 202 are distributed at intervals along the circumference of the connecting shaft 201. The fan blade 202 includes a tail wing area 2021 and a guide area 2022 distributed in sequence along the rotation direction of the connecting shaft 201. The guide area 2022 is sequentially provided with a plurality of guide grooves 2022-2 along the inward and outward directions. The guide grooves 2022-2 extend along the rotation direction of the connecting shaft 201 and are connected to the outside on the side away from the tail wing area 2021.

[0075] The unique combined structure of the tail wing area 2021 and the guide area 2022 of the fan blade 202, combined with the circumferentially distributed guide grooves 2022-2 design, can effectively decompose airflow vortices and guide air laminar motion, significantly reducing the turbulent noise generated when traditional fan blades 202 cut through the air. At the same time, the multi-stage airflow channel formed by the guide grooves 2022-2 can enhance the air acceleration effect, allowing the airflow to obtain higher kinetic energy while maintaining a stable flow. This not only avoids the problem of wind pressure loss caused by conventional noise reduction designs, but also achieves a longer-distance air supply effect through refined control of the airflow path. This structural design allows the fan to maintain low noise characteristics even at high speeds, while ensuring that the generated airflow has sufficient penetrating power to promote large-scale indoor air circulation, thereby effectively resolving the technical contradictions of traditional air circulation fans in terms of quietness and wind pressure performance, providing users with a high-quality air circulation experience that is both quiet and can quickly equalize indoor temperature.

[0076] Optionally, the driving module includes a motor and other structures, and can adopt any existing fan or circulation fan driving structure. This is not the invention point of the present application and will not be described in detail here.

[0077] As a specific embodiment of the fan blade 202, please refer to Figure 10 The cross section of the guide groove 2022-2 in the direction perpendicular to the blade surface of the fan blade 202 is arc-shaped.

[0078] This embodiment provides a guide with an arc-shaped cross-section in the guide area 2022 of the fan blade 202, so that the airflow can obtain a smoother flow path when passing through the fan blade 202, effectively reducing the occurrence of airflow separation and vortex phenomena. This arc-shaped guide groove 2022-2 structure can guide the natural transition of the airflow, avoid the sudden turning loss caused by the traditional straight guide groove 2022-2, and improve the tightness of the airflow organization while reducing the airflow friction noise. The arc surface design allows the air to form a stable laminar state in the guide groove 2022-2, which not only significantly improves the high-frequency wind noise problem, but also enhances the wind pressure output efficiency by optimizing the airflow acceleration process, achieving the dual effects of noise control and wind pressure increase. This structure allows the fan to maintain a quiet working state during operation, while generating a strong and concentrated airflow, ensuring that the indoor air circulation is more uniform and efficient.

[0079] Optionally, the maximum depth of guide groove 2022-2 is 1.5-3 times the thickness of blade 202. This depth design ensures that guide groove 2022-2 has sufficient space to effectively guide airflow while avoiding the loss of structural strength caused by an excessively deep groove, achieving an ideal balance between noise reduction and wind pressure performance. A properly deepened guide groove 2022-2 can create a more significant airflow channeling effect, enhancing air gathering and acceleration capabilities. At the same time, by optimizing the contact area between the airflow and the groove wall, it effectively reduces noise generated by air friction.

[0080] In some embodiments, see Figure 10 The guide area 2022 includes a connecting portion 2022-1 and a guide portion distributed along the rotation direction. The guide area 2022 is located in the guide portion. The connecting portion 2022-1 is connected to the connecting shaft 201 along the inward and outward directions, and smoothly transitions with the tail wing area 2021. The depth of the guide groove 2022-2 gradually decreases away from the rotation direction, and the minimum depth of the guide groove 2022-2 is flush with the connecting portion 2022-1.

[0081] The rational partitioning design of the guide portion and the connecting portion 2022-1, combined with the depth-gradient guide groove 2022-2 structure, achieves a smooth transition and efficient acceleration of the airflow from the connecting shaft 201 to the blade tip. The smooth transition between the connecting portion 2022-1 and the tail wing area 2021 effectively reduces the airflow separation phenomenon, while the gradual change in the depth of the guide groove 2022-2 enables the airflow to diffuse naturally along the surface of the fan blade 202, avoiding the eddy noise caused by the sudden change in depth and ensuring that the airflow maintains an ideal flow state when leaving the fan blade 202. This structural design not only reduces the resistance loss when air passes through, but also improves the wind pressure output efficiency by optimizing the airflow distribution, so that the fan can generate a more concentrated and uniform airflow during operation, while maintaining a quieter working state, significantly improving the overall performance of the air circulation fan.

[0082] In some embodiments, see Figure 10 The tail area 2021 includes a tail body 2021-1 located upstream of the guide area 2022 and connected to the connecting shaft 201 along the inward and outward directions, and a tail flange 2021-2 connected to the outer side of the tail body 2021-1 and bent inward.

[0083] The unique folding structure design of the tail area 2021 significantly improves the aerodynamic performance and noise reduction effect of the fan blade 202. The combined structure of the tail body 2021-1 and the flange can effectively organize the airflow from the guide area 2022 when the fan blade 202 rotates. The inward folding design of the flange not only enhances the structural rigidity of the blade, but more importantly, forms a guide effect that guides the airflow inward, making the output airflow more concentrated and stable. This structure not only reduces the generation of tip vortices and high-frequency noise, but also improves the effective projection distance of the airflow by optimizing the wake field. The integrated design of the tail flange 2021-2 and the main body ensures a smooth transition of the airflow from the guide area 2022 to the tail area 2021, avoiding the airflow separation phenomenon caused by the traditional straight-plate tail, while reducing wind resistance noise and enhancing the wind pressure output, so that the air circulation fan can still maintain a strong air supply capacity in a quiet operation state, achieving a more efficient indoor air circulation effect.

[0084] In some embodiments, see Figure 10The tail wing body 2021-1 is tilted backwards away from the side of the guide area 2022.

[0085] The present invention designs the tail wing body 2021-1 to be a backward-tilted structure, so that the fan blades 202 can more effectively guide the direction of the airflow during rotation, significantly improving the aerodynamic performance. This inclined tail wing design forms a natural diversion transition after the airflow passes through the guide area 2022, effectively reducing the airflow stripping phenomenon and avoiding the generation of turbulent noise. The backward tilt angle of the tail wing enables the output airflow to obtain a more concentrated projection direction, enhancing the penetration and coverage of the air supply. At the same time, the airflow rectification effect formed by the inclined structure at the blade tip can suppress the generation of vortices and significantly reduce high-frequency noise. This design not only optimizes the tightness of the airflow organization, but also improves the wind pressure efficiency by improving the tail flow field, so that the fan can generate strong and stable airflow while maintaining low-noise operation, achieving a longer-distance and more uniform indoor air circulation effect.

[0086] In some embodiments, see Figure 2 The silent circulation fan also includes a wind tube 203 arranged in the air flow channel and sleeved on the outside of the fan assembly 2. The inner circumference of the wind tube 203 is provided with a plurality of reinforcement grooves 2031 along its own circumference, and the reinforcement grooves 2031 are connected to the outside along the front-to-back direction.

[0087] The present invention achieves the dual effects of further optimizing the airflow organization and suppressing noise by providing a wind tube 203 structure with circumferential reinforcement grooves 2031 on the periphery of the fan assembly 2. The reinforcement grooves 2031 on the inner wall of the wind tube 203 are designed to form a stable boundary layer effect when the airflow passes through, effectively guiding the airflow to flow in an orderly manner along the axial direction, reducing the generation of turbulence while significantly reducing wind resistance noise. These axially extending channel structures not only enhance the structural strength of the wind tube 203 itself, but more importantly, form regular guide lines in the airflow channel, allowing air molecules to pass through in a more orderly manner, avoiding the airflow stripping phenomenon that is easily generated on the inner wall of the traditional smooth wind tube 203, and improving the wind pressure output efficiency by optimizing the airflow path. The coordination between the wind tube 203 structure and the fan blade 202 guide system ensures that the entire process of airflow from intake to discharge is under control. On the basis of ensuring low-noise operation, the concentration and projection distance of the airflow are further enhanced, thereby greatly improving the overall performance of the air circulation fan.

[0088] Optionally, the reinforcement groove 2031 is a groove body curved in the front-to-back direction. The curved groove forms a progressive guide track on the inner wall of the air tube 203, allowing the airflow to achieve a natural acceleration transition when passing through. This not only avoids the sudden change noise caused by the traditional straight groove structure, but also significantly improves the airflow delivery efficiency through the smooth guide path.

[0089] It should be noted that the air outlet direction of the fan is "front", and the opposite is "back".

[0090] In some embodiments, see Figure 2 In the radial cross section of the air duct 203 , the reinforcement groove 2031 is an arc-shaped groove body, and the reinforcement groove 2031 is connected to the outside along the axial direction of the air duct 203 .

[0091] The present invention achieves dual optimization of airflow organization and structural strength by adopting the structural design of the air duct 203 with an arc-shaped reinforcement groove 2031. The arc-shaped groove body forms a smoothly transitioned airflow channel on the inner wall of the air duct 203, effectively guiding the air to flow naturally along the axial direction, avoiding the turbulence and wind noise problems caused by the right-angle groove. This streamlined groove design not only maintains the stability of the boundary layer airflow, but also reduces the friction resistance of the airflow through the arc surface, allowing the air to pass through the air duct 203 more smoothly. At the same time, the axially penetrating structural characteristics ensure that the airflow will not generate local vortices when passing through the groove body, which not only maintains the integrity of the airflow, but also enhances the rigidity of the air duct 203 through the groove effect. The synergistic effect of this design and the fan blade 202 system ensures that the airflow maintains an efficient and orderly flow state from suction to discharge, while significantly reducing the operating noise, further improving the concentration and air supply distance of the air outlet, and bringing users a quieter and more efficient air circulation experience.

[0092] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. No consumable dust removal fan, characterized by: include: The housing has a through-flow passage; a fan assembly disposed in the air flow channel, the fan assembly comprising a drive module and a fan blade module connected to the drive module; as well as The electrostatic precipitator assembly includes a detachably connected ionization frame and a dust collecting frame, wherein the ionization frame and the dust collecting frame form an accommodating space in the axial direction, and further includes a positive electrode module and a negative electrode module arranged in the accommodating space, and an ionization element located outside the accommodating space and connected to the ionization frame, wherein the ionization element is detachably connected to the ionization frame.

2. The consumable-free dust removal fan according to claim 1, wherein: The dust collecting rack includes a limiting cylinder and a dust collecting ring coaxially sleeved outside the limiting cylinder, and also includes a plurality of dust collecting fins radially distributed outside the limiting cylinder and extending along the inward and outward directions, the inward and outward directions are parallel to the radial direction of the limiting cylinder, and the dust collecting fins are used to connect the limiting cylinder and the dust collecting ring.

3. The consumable-free dust removal fan according to claim 2, characterized in that: The positive electrode module includes a positive electrode connecting ring and a plurality of positive electrode sheets radially distributed on the positive electrode connecting ring, and a pressure difference gap is formed between two adjacent positive electrode sheets. The negative electrode module includes a negative electrode connecting ring and a plurality of negative electrode sheets radially distributed on the negative electrode connecting ring, and the negative electrode sheets correspond one-to-one to the pressure difference gap and are inserted into the pressure difference gap.

4. The consumable-free dust removal fan according to claim 3, wherein: The positive electrode module also includes a positive electrode fixing ring coaxially arranged with the positive electrode connecting ring, one end of the positive electrode sheet is connected to the positive electrode connecting ring, and the other end is connected to the positive electrode fixing ring; the negative electrode module also includes a negative electrode fixing ring coaxially arranged with the negative electrode connecting ring, one end of the negative electrode sheet is connected to the negative electrode connecting ring, and the other end is connected to the negative electrode fixing ring.

5. The consumable-free dust removal fan according to claim 3, characterized in that: The limiting cylinder and / or the dust collecting ring are provided with a plurality of mounting grooves, which are distributed along the circumference of the limiting cylinder or the dust collecting ring, and the positive electrode sheet and the negative electrode sheet are respectively inserted into the corresponding mounting grooves.

6. The consumable-free dust removal fan according to claim 1, wherein: The ionization element includes: an ionizing wire, disposed on a side of the ionizing frame facing away from the accommodation space; and The fixing block is connected to the ionization wire and is detachably connected to the ionization frame.

7. The consumable-free dust removal fan according to claim 1, wherein: The ionization frame comprises: a main frame connected to the dust collecting rack and forming the accommodating space together with the dust collecting rack; and The mounting frame is detachably connected to the main frame; the ionizer is connected to a side of the mounting frame facing away from the main frame.

8. The consumable-free dust removal fan according to claim 1, wherein: The ionization frame includes a coaxially arranged ionization inner ring and an ionization outer ring, and also includes an ionization sheet connected to the ionization inner ring and the ionization outer ring. A receiving groove is provided at the connection between the ionization sheet and the ionization inner ring or the ionization outer ring, and the ionization component is arranged in the receiving groove.

9. The consumable-free dust removal fan according to claim 1, wherein: The inner circumference and / or outer circumference of the ionization rack is further provided with a first connecting post, and the dust collecting rack is provided with a second connecting post corresponding to the first connecting post, and the first connecting post and the second connecting post are detachably connected.

10. The consumable-free dust removal fan according to claim 1, wherein: The electrostatic precipitator assembly also includes an isolation ring axially arranged between the positive electrode module and the negative electrode module. The isolation ring is an insulating component and contacts the positive electrode module and the negative electrode module respectively to isolate the positive electrode module from the negative electrode module.

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