Mounting structure and mounting method of electrostatic air filter

By designing an installation structure adapted to electrostatic air filters, and utilizing detachable connections and elastic clamping force, the problem of adapting electrostatic air filters to media filter installation frames was solved, achieving efficient and low-cost installation and anti-loosening and vibration-resistant performance.

CN121828840APending Publication Date: 2026-04-10AIRQUALITY TECH (SHANGHAI) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-30
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Electrostatic air filters are difficult to adapt effectively to existing media filter mounting frames, increasing the complexity and cost of on-site installation and limiting their large-scale market application.

Method used

An installation structure for an electrostatic air filter has been designed, including a mounting frame, a fixing structure, a connecting base, and fasteners. It enables rapid installation through detachable connections and elastic clamping force, and is compatible with electrostatic air filters of different sizes.

Benefits of technology

It reduces the complexity and cost of on-site installation, improves installation efficiency, has adaptive compensation capabilities, prevents loosening of connections, and enhances anti-loosening and vibration resistance performance.

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Abstract

The invention relates to a mounting structure and a mounting method of an electrostatic air filter, and belongs to the technical field of air purification, the mounting structure comprises a mounting frame, the electrostatic air filter and a fixing structure, the front surface of the mounting frame is provided with a mounting port, and the fixing structure is detachably connected with the mounting frame; after the electrostatic air filter is pushed into the mounting frame from the front face, the fixing structure is rotated, the electrostatic air filter is fixed to the mounting frame, and the technical problem that in the prior art, an electrostatic air filter cannot be matched with an existing medium filter mounting frame can be solved.
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Description

Technical Field

[0001] This invention belongs to the field of air purification technology, and specifically relates to an installation structure and installation method for an electrostatic air filter. Background Technology

[0002] Currently, air purification technologies on the market can be mainly divided into two categories: media filtration technology and electrostatic adsorption technology. Among them, electrostatic adsorption technology, with its unique technological advantages, is gradually expanding into a wider range of application areas. Media filtration technology, due to its earlier development and widespread application, has established standardized installation frames in various types of buildings (especially in scenarios using combined air conditioning units). In contrast, while electrostatic adsorption technology has advantages in energy efficiency and maintainability, its fundamentally different technical principles result in significant differences in product form compared to media filtration. This makes it difficult to effectively adapt electrostatic air filters to existing media filter installation frames. This compatibility issue increases the complexity and cost of on-site installation, ultimately hindering the large-scale market application of this technology. Summary of the Invention

[0003] In view of the shortcomings of existing technologies, an installation structure and method for electrostatic air filters are proposed to solve the technical problem that existing electrostatic air filters cannot be adapted to existing media filter installation frames.

[0004] To achieve the above objectives, the present invention provides the following technical solution: In a first aspect, the present invention provides an installation structure for an electrostatic air filter, including an installation frame, an electrostatic air filter, and a fixing structure. The front of the installation frame is provided with an installation port, and the fixing structure is detachably connected to the installation frame.

[0005] The technical solution is further configured such that the fixing structure includes a connecting base and a fastener, the connecting base is detachably connected to the mounting frame, the first end of the fastener is rotatably connected to the connecting base, and the second end of the fastener is bent to form a bent portion. The bent portion can deform under compression, so that the bent portion generates an elastic clamping force to fix the electrostatic air filter on the mounting frame.

[0006] The technical solution is further configured such that the connecting base includes a hook-up part, which is inserted into the edge of the mounting frame, and the hook-up interface of the hook-up part has a guide surface.

[0007] The technical solution is further configured such that a portion of the hooking part extends into its internal cavity to form an anti-loosening hook, and at least one anti-loosening hook is provided.

[0008] The technical solution is further configured such that the hook part is provided with a hand-held hole.

[0009] The technical solution is further configured such that the connecting base also includes a connecting portion, the connecting portion having an arc-shaped segment protruding from its body surface, the first end of the fastener passing through the arc-shaped segment and being rotatable relative to the arc-shaped segment.

[0010] The technical solution is further configured such that the first end of the fastener passes through the arc-shaped segment and is then bent to form an anti-loosening hook.

[0011] The technical solution is further configured such that the plane where the anti-loosening hook is located is perpendicular to the plane where the bending part is located.

[0012] The technical solution is further configured such that the connecting base includes a first substrate and a second substrate perpendicular to each other, the end of the first substrate away from the second substrate is bent and then extends in a direction parallel to the first substrate to form the hook portion, and the end of the second substrate away from the first substrate is bent and then extends in a direction parallel to the second substrate to form the connecting portion.

[0013] The technical solution is further configured such that the bent portion has a pre-tightening section that is axially inclined relative to the fastener, and after the bent portion is compressed and deformed, the pre-tightening section abuts against the electrostatic air filter.

[0014] The technical solution is further configured such that the minimum distance between the pre-tightening section and the hook-up part is less than the width of the electrostatic air filter.

[0015] The technical solution is further configured such that when the width of the electrostatic air filter is less than the width of the mounting frame, a fixing member is also provided between the mounting frame and the electrostatic air filter; The first end of the fastener is bent to form a hook section for connecting to the first mounting hole on the mounting frame, and the second end of the fastener is bent to form a hand grip section.

[0016] The technical solution is further configured such that the mounting frame is provided with a blocking part, and the second end of the fastener has an abutment section that engages with the blocking part.

[0017] The technical solution is further configured such that the fixing structure includes a screw and a fixing plate, the fixing plate is detachably connected to the mounting frame, the screw is threadedly connected to the fixing plate, and the end of the screw is provided with a clamping block for abutting against the electrostatic air filter.

[0018] The technical solution is further configured such that the electrostatic air filter includes a frame, and an ionization module and a dust collection module are disposed inside the frame; The windward side dimension of the frame is the same as its air outlet side dimension, or the windward side dimension of the frame is greater than its air outlet side dimension.

[0019] The technical solution is further configured such that the frame is an integral structure, which is formed by fastening together a front cover and a rear cover.

[0020] The technical solution is further configured such that the frame is a modular structure, which is assembled from splicing parts and frame profiles.

[0021] Secondly, the present invention provides a method for installing an electrostatic air filter, comprising the following steps: Connect the fixing structure to the mounting frame, and push the electrostatic air filter into the mounting frame from the mounting port; Rotate the fixing structure so that it abuts against the electrostatic air filter to fix the electrostatic air filter to the mounting frame; Multiple electrostatic air filters can be quickly electrically connected by interlocking the splicing structure on the electrostatic air filter. Select one or more electrostatic air filters and connect them to the power supply circuit or circuit breaker.

[0022] Thirdly, the present invention provides an installation structure for an electrostatic air filter, including an installation frame, an electrostatic air filter, and a fixing groove. The side of the installation frame is provided with an installation opening, and the fixing groove is provided at the installation opening. The electrostatic air filter is pushed into the installation frame from the side and along the fixing groove.

[0023] The technical solution is further configured such that the mounting frames are arranged in a matrix and there are several of them. The fixing slots on the mounting frames on the same layer are connected. The frame of the electrostatic air filter is provided with a splicing structure to realize the splicing of adjacent electrostatic air filters. The assembled electrostatic air filter assembly is pushed into the mounting frame along the fixing groove, and one or more electrostatic air filters are selected and connected to the power supply circuit or circuit breaker.

[0024] The beneficial effects of this invention are: 1. The electrostatic air filter can be installed simply by pushing it into the mounting frame from the front. The installation is achieved by rotating the fixing structure, which reduces the complexity of on-site installation and helps to improve work efficiency.

[0025] 2. The connecting base serves as the interface for the mounting frame, and the fasteners act as the actuators generating clamping force. No tools are required, enabling true manual operation, significantly reducing the skill requirements for installers and greatly improving efficiency. The elastic clamping force generated by the compression of the bent section is a continuous, dynamic force with adaptive compensation capabilities. It can automatically offset minor deformations or gaps in components caused by vibration or temperature changes, preventing loosening of the connection and exhibiting excellent anti-loosening and vibration-resistant performance. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the fixing structure in an embodiment of the present invention; Figure 2 This is a schematic diagram of the fixed structure from another perspective in an embodiment of the present invention; Figure 3 This is a schematic diagram of the fixed structure from another perspective in an embodiment of the present invention; Figure 4 This is an assembly view of the fixing structure and the mounting frame in an embodiment of the present invention; Figure 5 This is a schematic diagram of the installation structure of the electrostatic air filter in an embodiment of the present invention; Figure 6 This is a schematic diagram of the fastener in an embodiment of the present invention; Figure 7 This is an assembly view of the fastener and the mounting frame in an embodiment of the present invention; Figure 8 This is a schematic diagram of another embodiment of the installation structure of the electrostatic air filter in this invention. Figure 9 for Figure 4 Partial schematic diagram at point A in the middle; Figure 10 for Figure 5 Partial schematic diagram at point B in the middle; Figure 11 for Figure 7 Partial schematic diagram at point C; Figure 12 for Figure 8 Partial schematic diagram at point D; Figure 13 This is a schematic diagram of an electrostatic air filter (with the primary filter module removed) in an embodiment of the present invention; Figure 14 This is an axonometric view of one embodiment of the frame in this invention; Figure 15 for Figure 14 Exploded view; Figure 16 for Figure 14 Assembly view of the inspection cover and frame profile in the middle; Figure 17for Figure 16 Partial schematic diagram at point F in the middle; Figure 18 This is a schematic diagram of one embodiment of the splicing component in this invention; Figure 19 This is a schematic diagram of another embodiment of the splicing component in this invention; Figure 20 This is a schematic diagram of one embodiment of the lower splicing component in this invention; Figure 21 This is a schematic diagram of another embodiment of the lower splicing component in this invention; Figure 22 This is an axonometric view of another embodiment of the frame in this invention; Figure 23 for Figure 22 Exploded view; Figure 24 for Figure 22 Assembly view of the inspection cover and frame profile in the middle; Figure 25 This is a schematic diagram of another embodiment of the splicing component in this invention; Figure 26 This is a schematic diagram of another embodiment of the lower splicing component in this invention; Figure 27 This is a schematic diagram of another embodiment of the lower splicing component in this invention; Figure 28 for Figure 15 Partial schematic diagram at point E in the middle; Figure 29 for Figure 23 Partial schematic diagram at point G in the middle; Figure 30 This is a schematic diagram of another embodiment of the fixing structure in this invention; Figure 31 This is an assembly view of the fixing structure and the mounting frame in an embodiment of the present invention; Figure 32 for Figure 31 Partial schematic diagram at point H; Figure 33 This is a schematic diagram of another embodiment of the installation structure of the electrostatic air filter in this invention.

[0027] In the attached diagram: 1. Connecting base; 2. Fastener; 3. Hook-on section; 4. Connecting section; 5. Bending section; 6. Anti-loosening hook; 7. Handheld hole; 8. Hook interface; 9. Anti-loosening barb; 10. Arc-shaped section; 11. Pre-tightening section; 12. Mounting frame; 13. Edge of mounting frame; 14. Frame of mounting frame; 15. Protruding ridge; 16. Electrostatic air filter; 17. Fixing component; 18. Hook section; 19. Handheld section; 20. Abutment section; 21. Blocking section; 22. First mounting hole; 23. Screw; 24. Fixing plate; 25. Abutment block; 26. Wing lug; 1000, Frame; 2000, Primary Filter Module; 3000, Ionization Module; 1100, Frame Profile; 1101, Guide Surface; 1102, First Cavity; 1103, Second Cavity; 1104, Third Cavity; 1200, Connecting Component; 1210, Upper Connecting Component; 1220, Lower Connecting Component; 1300, Inspection Cover; 1301, Claw; 1302, Limiting Block; 1303, Fourth Cavity; 1304, [Missing Component] Two connecting holes; 1305, fifth cavity; 1400, power supply compartment; 1500, connector; 1510, lateral connector; 1520, longitudinal connector; 1530, lateral connector; 1600, lead wire interface; 1700, communication interface; 1800, wind baffle; 1900, splicing hole; 1110, second mounting hole; 1120, protrusion; 1130, drainage hole; 1140, partition; 1150, first connecting hole. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Based on the embodiments in this application, other similar embodiments obtained by those skilled in the art without creative effort should all fall within the scope of protection of this application. Furthermore, directional terms mentioned in the following embodiments, such as "up," "down," "left," and "right," are only for reference to the directions in the accompanying drawings; therefore, the directional terms used are for illustrative purposes and not for limiting the invention.

[0029] Example 1: According to an embodiment of the present invention, an installation structure for an electrostatic air filter is provided. Please refer to [link / reference]. Figures 1 to 5 The system includes a mounting frame 12, an electrostatic air filter 16, and a fixing structure. The mounting frame 12 has a mounting port on its front side, and the fixing structure is detachably connected to the mounting frame 12. After the electrostatic air filter 16 is pushed into the mounting frame 12 from the front, the fixing structure is rotated to fix the electrostatic air filter 16 to the mounting frame 12.

[0030] The fixing structure consists of two main components: a connecting base 1 and fasteners 2. The connecting base 1, serving as the mounting foundation for the entire structure, is preferably made of stamped and bent metal sheet or integrally injection molded engineering plastic. It is detachably connected to the mounting frame 12 (i.e., the existing media filter mounting frame in the air conditioning unit) through snap-fit ​​or hook-fitting methods. The fastener 2 is typically made of bent metal wire (such as spring steel) with a certain degree of elasticity. Its first end forms a rotatable connection with the connecting base 1, while the second end is bent to form a specific bend 5. This bend 5 is the key part for generating the locking force.

[0031] When installing the electrostatic air filter, rotating the fastener 2 drives the bent part 5 to contact the frame of the electrostatic air filter 16 and undergo elastic deformation under pressure. The reverse elastic restoring force generated by this deformation, i.e., elastic clamping force, firmly presses the electrostatic air filter onto the mounting frame 12. This purely mechanical elastic tensioning method allows for quick installation and removal without tools. Furthermore, the fastener 2 can be made in different lengths, allowing the electrostatic air filter 16 to be installed in an embedded manner into the mounting frame 12 (the width of the electrostatic air filter 16 is no greater than the width of the mounting frame 12), or to be installed in a protruding manner into the mounting frame 12 (the width of the electrostatic air filter 16 is greater than the width of the mounting frame 12), fundamentally solving the industry pain points of difficult compatibility between electrostatic air filters and existing frames and high installation costs.

[0032] Furthermore, multiple electrostatic air filters can be quickly electrically connected by interlocking the splicing structure on the electrostatic air filter; then, one or more of the electrostatic air filters can be selected and connected to the power supply circuit or circuit breaker.

[0033] In the installation structure of an electrostatic air filter according to this embodiment, please refer to... Figures 1 to 5 ,as well as Figure 9 and Figure 10 As shown, the connecting base 1 includes a hook-on portion 3. This hook-on portion 3 is designed to be inserted into the edge 13 of the mounting frame, specifically, the edge 13 of the mounting frame is located on its frame 14. The hook-on portion 3 has a hook-on interface 8, which has a specific guide surface. This guide surface can be designed as a bevel or an arc surface, forming a "trumpet-shaped" insertion structure.

[0034] Understandably, the mounting interface 8 with the guide surface allows the connecting base 1 to be easily aligned with and slid into the edge 13 of the mounting frame during installation, achieving "blind installation" and improving installation efficiency.

[0035] Optionally, an inwardly protruding anti-loosening hook 9 is formed within the internal cavity of the mounting part 3 by stamping or injection molding. The anti-loosening hook 9 can effectively prevent the connecting base 1 from loosening due to vibration or accidental pulling after mounting on the edge 13, ensuring the reliability of the base connection. At the same time, the number and layout of the anti-loosening hooks 9 can be adjusted as needed.

[0036] Optionally, for ease of operation, a hand-held hole 7 can be provided on the hook part 3, providing the operator with a point of force application, making it convenient to pick up and position.

[0037] In the installation structure of an electrostatic air filter according to this embodiment, please refer to... Figures 1 to 5 ,as well as Figure 9 and Figure 10 As shown, the connection method between the fastener 2 and the connecting base 1 is the core of its function.

[0038] Specifically, the connecting base 1 also includes a connecting portion 4. This connecting portion 4 has an arc-shaped segment 10 protruding from its main body surface. The first end of the fastener 2 passes through this arc-shaped segment 10, thereby achieving a rotatable connection. To prevent detachment, the first end of the fastener 2, after passing through the arc-shaped segment 10, can be further bent to form an anti-loosening hook 6.

[0039] Understandably, the arc-shaped segment 10 provides a stable and reliable rotation axis for the fastener 2, ensuring smooth rotation. The anti-loosening hook 6 cooperates with the arc-shaped segment 10 to effectively prevent the fastener 2 from axially dislodging from the connecting part 4, improving the product's durability and reliability. The entire sheet metal bending structure of the connecting base 1 is a mature technology, low in cost, and easy to standardize for production.

[0040] Optionally, the plane of the anti-loosening hook 6 is perpendicular to the plane of the bending portion 5. This geometric relationship limits the rotational stroke of the fastener 2 to a preset angle range of 0° to 90°.

[0041] When the hook 3 is inserted into the edge 13 of the mounting frame, the anti-loosening hook 6 is perpendicular to the connecting part 4, and the bending part 5 is in a horizontal position, providing unobstructed operating space for the installation of the electrostatic air filter 16. When the fastener 2 is rotated 90° to the end position, the anti-loosening hook 6 and the connecting part 4 become parallel and fitted, acting as a mechanical stop to prevent further rotation. At the same time, the bending part 5 changes to a vertical working position, and its pre-tightening section 11 deforms to generate elastic clamping force, thereby applying effective clamping force to the electrostatic air filter 16 and fixing the electrostatic air filter 16 to the mounting frame 12.

[0042] Optionally, the connecting base 1 can be formed by bending a first substrate and a second substrate that are perpendicular to each other, wherein the first substrate extends and bends to form a hook part 3, and the second substrate extends and bends to form a connecting part 4, which has a simple structure and high strength.

[0043] Optionally, the inner surface of the frame 14 of the mounting frame is provided with a protruding rib 15 extending along its width direction. This protruding rib 15 protrudes from the inner surface of the frame 14 into the frame, forming an integrated multi-functional structure that simultaneously serves as a guide, support, and clearance mechanism during the installation of the electrostatic air filter 16. Specifically, the protruding rib 15 provides a clear guide trajectory for pushing the electrostatic air filter 16 in, ensuring it slides accurately along a preset path, achieving fast and precise positioning and installation. After installation, the protruding rib 15 provides rigid support for the bottom or side of the electrostatic air filter 16. Simultaneously, the stepped structure formed by the protruding rib 15 and the inner surface of the frame of the mounting frame provides necessary clearance space for the fastener 2 in its working position, preventing movement interference and ensuring that the fastener 2 can smoothly rotate to the locked position.

[0044] In the installation structure of an electrostatic air filter according to this embodiment, please refer to... Figures 1 to 5 ,as well as Figure 9 and Figure 10 As shown, the design of the bend 5 directly affects the clamping effect. The bend 5 includes a pre-tightening section 11 that is axially inclined relative to the fastener 2. This pre-tightening section 11 is the part that ultimately contacts the frame of the electrostatic air filter 16. Its unique feature is that, in its natural state (when not installed), the minimum distance L between the pre-tightening section 11 and the hook 3 is designed to be less than the width W of the electrostatic air filter 16; this design is crucial for generating effective clamping force.

[0045] Understandably, when the electrostatic air filter 16 is inserted, rotating the fastener 2 forces the pre-tightening section 11 to press against the frame of the electrostatic air filter 16. Since the initial distance L is less than the width W, the pre-tightening section 11 will inevitably be compressed and undergo elastic deformation, thus storing elastic potential energy. This potential energy is continuously released, which is converted into a stable and reliable clamping force on the electrostatic air filter 16, and can adapt to certain dimensional tolerances.

[0046] Example 2: Please see Figures 1 to 12 As shown, when the width of the electrostatic air filter 16 is smaller than the width of the mounting frame 12, a fixing structure can be adopted using a fastener 17. This fastener 17 can also be formed by bending metal wire. Its first end is bent to form a hook section 18 for hooking onto the first mounting hole 22 of the mounting frame 12. The second end is bent to form a handle section 19 for easy operation, and an abutment section 20. Correspondingly, a blocking part 21 is provided on the mounting frame 12.

[0047] In use, the hook section 18 of the fastener 17 is inserted into the first mounting hole 22, and then the fastener 17 is rotated so that its abutment section 20 engages with the blocking part 21 on the frame. There is also a bent section between the hook section 18 and the abutment section 20, which can firmly press the electrostatic air filters 16 of different widths into the mounting frame 12, greatly improving the versatility and adaptability of the product.

[0048] Optionally, the first mounting hole 22 can have a dual-hole or multi-hole structure. Additionally, multiple sets of first mounting holes can be provided on the frame 14 of the mounting frame to accommodate electrostatic air filters 16 of different widths.

[0049] Example 3: Please see Figures 30 to 33 As shown, the fixing structure includes a screw 23 and a fixing plate 24. The fixing plate 24 is configured as a triangular structure, with its two sides extending perpendicular to its body to form lugs 26. The edge of the frame 14 of the mounting frame is bent to form a V-shaped groove, and the lugs 26 are inserted into the V-shaped groove to achieve a detachable connection between the fixing plate 24 and the mounting frame.

[0050] The screw 23 is threadedly connected to the nut on the fixing plate 24, and the end of the screw 23 is provided with a clamping block 25 for abutting against the electrostatic air filter 16. In use, the lug 26 is inserted into the V-groove, and then the screw 23 is rotated to make the clamping block 25 abut against the electrostatic air filter 16.

[0051] Example 4: In an electrostatic air filter installation structure of this embodiment, there are an installation frame 12, an electrostatic air filter 16 and a fixing groove. The side of the installation frame 12 is provided with an installation port, and the fixing groove is provided at the installation port. The electrostatic air filter 16 is pushed into the installation frame 12 from the side and along the fixing groove. One or more electrostatic air filters 16 are selected and connected to a power supply circuit or circuit breaker.

[0052] Specifically, the fixing groove can be set at the top and / or bottom of the mounting port to guide and limit the electrostatic air filter 16.

[0053] In some other embodiments, the mounting frames 12 are arranged in a matrix (e.g., four mounting frames arranged in a grid pattern). The fixing slots on the mounting frames 12 on the same layer are connected. The frame 1000 of the electrostatic air filter 16 is provided with a splicing structure to realize the splicing of adjacent electrostatic air filters. The spliced ​​electrostatic air filter group is pushed into the mounting frame 12 as a whole along the fixing slot.

[0054] Specifically, the splicing structure employs a complementary design to achieve mutual splicing. This structure can be any splicing structure found in existing technologies, such as the mating of protrusions and grooves. In practical use, it can be installed by pulling it out.

[0055] Example 5: In the installation structure of an electrostatic air filter according to this embodiment, please refer to... Figures 1 to 29 As shown, the mounting structure of this invention can be adapted to various structures of electrostatic air filters 16. Specifically, the frame 1000 of the electrostatic air filter 16 can be a one-piece structure, formed by snapping together front and rear side covers, resulting in a compact structure. Alternatively, it can be a modular structure, formed by inserting standardized frame profiles 1100 through splicing parts 1200, achieving flexible and variable dimensions to adapt to different sizes of mounting frames 12.

[0056] It is understandable that the frame 1000 can be plate-shaped (with the same dimensions for the air-facing and air-exit surfaces). Specifically, the outer surface of the frame profile 1100 adopts a flat planar structure. This structure can directly replace traditional media filters of the same size, achieving seamless integration and convenient upgrades. Alternatively, it can be bag-shaped (with the air-facing surface larger than the air-exit surface, increasing the filtration area). Specifically, the outer surface of the frame profile 1100 adopts a non-flat stepped structure, achieved by designing the portion of the frame profile 1100 near the air-facing surface as a stepped structure extending outwards from the frame 1000. This design effectively expands the internal purification module capacity of the frame 1000 without increasing its depth, making it particularly suitable for applications with higher dust holding capacity requirements. Whether it is a traditional integrated frame or an innovative modular assembly frame, whether it is a plate type or a bag type structure, the present invention can provide an effective fastening solution through the combination of connecting base 1 and fastener 2, truly achieving "adapting to all changes with the same principle", supporting the seamless replacement and wide applicability of electrostatic air filter 16 to existing air conditioning systems.

[0057] Optionally, the frame profile 1100 is integrally extruded from engineering plastic to ensure strength while achieving lightweight design. The frame profile 1100 has multiple internal cavities. The splicing component 1200 is typically an injection-molded plastic part with connectors 1500 precisely fitted to the cavities. This "standard profile + dedicated connector" approach allows for unlimited scalability of the frame 1000 specification. Different sizes of electrostatic air filters 16 can be assembled using frame profiles 1100 of varying lengths, better adapting to the mounting frame 12. The frame profile 1100 provides mounting slots for the ionization module 3000, dust collection module, and pre-filter module 2000 at positions corresponding to multiple cavities. All functional modules are integrated into the same frame, replacing the traditional multi-shell assembly method, reducing the overall thickness and lowering costs. In terms of application, the thinner thickness significantly improves the spatial adaptability of the electrostatic air filter 16, enabling it to be installed in narrow spaces with strictly limited width. In addition, this design maximizes the effective planar area of ​​each functional module, thereby balancing and improving air purification efficiency and dust holding capacity.

[0058] Optionally, the cavities (e.g., the first cavity 1102 and the second cavity 1103) are precisely located on the inner wall of the frame profile 1100. Here, "inner wall" specifically refers to two opposite sides inside the frame 1000. The cavities adopt a semi-enclosed structure. For example, the end face of the first cavity 1102 along the length of the frame profile 1100 is open to allow the insertion of the connector 1500, and one cavity surface is confined and closed, while the other cavity surface is open, with the cavity surface parallel to the inner wall of the frame profile 1100. The end face of the second cavity 1103 along the length of the frame profile 1100 is open, similarly facilitating the insertion of the connector 1500, and both of its cavity surfaces are confined and closed. This structure provides the necessary channels and space for connection while retaining sufficient structural strength to withstand the pressure from insertion and vibrations during long-term use. The open end faces facilitate assembly, while the confined cavity surfaces ensure the overall rigidity of the profile.

[0059] Optionally, the splicing components 1200 (which can be divided into an upper splicing component 1210 located at the top of the frame 1000 and a lower splicing component 1220 located below the frame 1000) are typically at 90-degree right angles to accommodate rectangular frames. For frames with non-right-angle connections, the bending angle of the splicing components 1200 can be adjusted to an acute or obtuse angle accordingly. Additionally, the outer surface of the splicing components 1200 can adopt curved lines.

[0060] Specifically, the two upper splicing components 1210 are symmetrically arranged, and their structures are largely the same. The only difference is that one upper splicing component 1210 has a second mounting hole 1110 for installing connectors (such as studs), and the other upper splicing component 1210 has a splicing hole 1900 for attaching connectors exposed outside the second mounting hole 1110, thus enabling the splicing of the two frame bodies 1000. In other words, the second mounting hole 1110, the connectors, and the splicing hole 1900 form the splicing structure. Similarly, the two lower splicing components 1220 are symmetrically arranged, and their structures are largely the same. The only difference is that one lower splicing component 1220 has a second mounting hole 1110, and the other lower splicing component 1220 has a splicing hole 1900. The two frame bodies 1000 are spliced ​​through the second mounting hole 1110, the connectors, and the splicing hole 1900.

[0061] Specifically, the lower splice 1220 is provided with a protrusion 1120 and a drain hole 1130. The protrusion 1120 protrudes 0.5-2mm from the outer surface of the lower splice 1220, which facilitates pushing and pulling and installation while ensuring a seal and reducing resistance. The drain hole 1130 is a through hole. After the electrostatic air filter 16 has been running for a period of time, it needs to be cleaned. Water remaining in the frame 1000 can be discharged through the drain hole 1130 to speed up drying.

[0062] Optionally, the end face of the splice 1200 is provided with multiple sets of connectors facing different directions. For example, one set of transverse connectors 1510 faces the X-axis direction, and another set of longitudinal connectors 1520 faces the Y-axis direction. Each set of connectors consists of multiple (as shown in the figures, 1, 2, or 4) connectors 1500 to provide a stable multi-point connection. This allows a splice 1200 to be securely connected to two mutually perpendicular frame profiles 1100 simultaneously. Please refer to [link / reference]. Figures 18 to 21 For a panel-type frame structure, multiple horizontal connectors 1510 are located on the same horizontal plane, and multiple vertical connectors 1520 are located on the same vertical plane. Please refer to [link / reference]. Figures 25 to 27 For the bag-type frame structure, multiple horizontal connectors 1510 are located on different parallel horizontal planes, and multiple vertical connectors 1520 are located on different parallel vertical planes. It should be noted that the number of connectors 1500 in each connector group is determined according to the number of cavities in the frame profile 1100, and the size of the connectors 1500 is adapted to the cross-sectional size of the cavities.

[0063] Optionally, a partition 1140 is integrally formed on the inner surface of the splicing component 1200. After the connector 1500 is inserted into the cavity of the frame profile 1100, the partition 1140 serves to separate and position the connector. At the same time, a partition is also provided on the frame profile 1100 to provide mounting slots for the various functional modules of the electrostatic air filter.

[0064] Specifically, the outer sides of the two first cavities 1102 are connected by a partition to form a first mounting groove for installing the dust collection module. The outer side of the first second cavity 1103 (located between the first cavity 1102 and the second second cavity) is connected by a partition to form a second mounting groove for installing the ionization module 3000. The outer side of the second second cavity 1103 is connected by a partition to form a third mounting groove. This mounting groove does not house any functional modules and is located between the ionization module 3000 and the primary filter module 2000 to ensure a safe electrical distance. The primary filter module 2000 is installed at the end of the second second cavity 1103 furthest from the first cavity 1102.

[0065] Optionally, the frame 1000 can be designed as a centrally symmetrical structure, such as... Figure 14 As shown, the types of profiles are simplified, and the cost is reduced. In this case, the high-voltage power supply of the electrostatic air filter is external; this design belongs to an external power supply structure. The frame 1000 can also be designed as an axisymmetric structure, such as... Figure 22 As shown, an inspection cover 1300 is provided on one side of the frame 1000. The inspection cover 1300 and the frame profile 1100 are snapped together to form a power supply compartment 1400 for housing high-voltage power supplies. This design is an internal power supply structure. It should be noted that, in addition to snapping, the inspection cover 1300 and the frame profile 1100 can also be connected by a sliding rail or magnetic adsorption.

[0066] Specifically, the inspection cover 1300 is provided with a flexible latch 1301. Correspondingly, a recessed groove matching the latch 1301 is formed on the outer wall of the frame profile 1100. To further facilitate installation, a guide surface 1101 (such as a slope) is provided at the entrance of the groove, which guides the latch 1301 to smoothly slide into the groove and lock. This design enables quick tool-free opening and closing of the power supply compartment 1400, greatly facilitating the installation, maintenance, or replacement of high-voltage power supplies. The snap-fit ​​structure has good sealing performance, effectively preventing dust and moisture from entering the power supply compartment and ensuring electrical safety. The design of the guide surface 1101 improves user experience and assembly efficiency.

[0067] Please see Figures 1 to 21For the panel-type frame structure, the frame profile 1100 connected to the inspection cover 1300 has a built-in third cavity 1104. Correspondingly, the upper splice 1210 is provided with a lateral connector 1530. To improve stability, the upper splice 1210 is provided with a first connecting hole 1150, and the inspection cover 1300 is provided with a second connecting hole 1304 corresponding to the first connecting hole 1150. The first connecting hole 1150 and the second connecting hole 1304 are connected by a connector (such as a stud). The lateral connector 1510 is embedded between the two second connecting holes 1304. The top of the third cavity 1104 is provided with a wing perpendicular to it. One side of the wing is provided with a guide surface 1101 and a slot. The inspection cover 1300 is provided with a limit block 1302, which abuts against the top of the wing. The limit block 1302, the claw 1301 and the slot cooperate with each other to improve the connection stability between the inspection cover 1300 and the frame profile 1100.

[0068] Please see Figures 22 to 27 For the bag-shaped frame, the frame profile 1100 connected to the inspection cover 1300 also has a third cavity 1104, a wing, a guide surface 1101, and a slot. In addition, the outer surface of the inspection cover 1300 adopts a non-flat stepped structure, with a fourth cavity 1303 on its larger side. Correspondingly, the upper splice 1210 has a lateral connector 1530. Specifically, when there are two fourth cavities 1303, two lateral connectors 1530 are arranged side-by-side. The smaller side of the inspection cover 1300 has a fifth cavity 1305, and the lateral connector 1510 is embedded in the fifth cavity 1305.

[0069] Optionally, the upper splicing component 1210 is designed with a recessed notch facing the power supply compartment 1400. Within this notch area, a lead wire interface 1600 and a communication interface 1700 are provided. The lead wire interface 1600 is used to connect the high-voltage power supply inside the power supply compartment 1400 to an external power source, or to connect two high-voltage power supplies within adjacent frames 1000. The communication interface 1700 is used to connect control signal lines. The notch provides operational space for wiring connections. Additionally, a baffle plate 1800 is provided at the notch to block airflow, preventing unpurified airflow from directly passing through the notch and improving purification efficiency. Furthermore, an observation hole is provided within the notch area, corresponding to the indicator light of the high-voltage power supply, to observe the status of the high-voltage power supply module.

[0070] Specifically, the lead interface 1600 and communication interface 1700 can use waterproof connectors to adapt to high humidity environments. The wind deflector 1800 can be integrally formed with the upper splice 1210, or it can be installed as a separate part later.

[0071] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. An installation structure for an electrostatic air filter, characterized in that, The fixing structure comprises a connecting base and a fastener, the connecting base is detachably connected with the mounting frame, the first end of the fastener is rotatably connected with the connecting base, the second end of the fastener is bent to form a bent portion, the bent portion is compressed to deform to generate an elastic compression force for fixing the electrostatic air filter on the mounting frame.

2. The mounting structure for an electrostatic air cleaner according to claim 1, wherein The connecting base comprises a hanging portion which is inserted into the edge of the mounting frame, and the hanging portion has a guide surface.

3. The mounting structure for an electrostatic air cleaner according to claim 2, wherein The hanging portion is partially extended to the inner cavity to form an anti-loosening barb, and the anti-loosening barb is provided with at least one.

4. The mounting structure for an electrostatic air cleaner according to claim 3, wherein The hanging portion is provided with a hand hole.

5. The mounting structure for an electrostatic air cleaner according to claim 3, wherein The connecting base further comprises a connecting portion which has an arc segment protruding from the surface of the body, and the first end of the fastener penetrates the arc segment and can rotate relative to the arc segment.

6. An electrostatic air filter mounting structure according to any one of claims 3 to 5, wherein The first end of the fastener is bent to form an anti-loosening hook after penetrating the arc segment.

7. The mounting structure for an electrostatic air cleaner according to claim 6, wherein The plane of the anti-loosening hook is perpendicular to the plane of the bent portion.

8. The mounting structure for an electrostatic air cleaner according to claim 7, wherein The connecting base comprises a first base plate and a second base plate which are perpendicular to each other, the end of the first base plate away from the second base plate is bent and extended along the direction parallel to the first base plate to form the hanging portion, and the end of the second base plate away from the first base plate is bent and extended along the direction parallel to the second base plate to form the connecting portion.

9. The mounting structure for an electrostatic air cleaner according to claim 6, wherein The bent portion has a pre-tightening segment which is inclined relative to the axis of the fastener, and after the bent portion is compressed to deform, the pre-tightening segment abuts against the electrostatic air filter.

10. The mounting structure for an electrostatic air cleaner according to claim 6, wherein The minimum distance from the pre-tightening segment to the hanging portion is less than the width of the electrostatic air filter.

11. The mounting structure for an electrostatic air cleaner according to claim 10, wherein The fixing structure is provided as a fixing member; 12. The mounting structure for an electrostatic air cleaner according to claim 1, wherein The first end of the fixing member is bent to form a hook segment for connecting with the first mounting hole on the mounting frame, and the second end of the fixing member is bent to form a hand holding segment. The mounting frame is provided with a blocking portion, and the second end of the fixing member has an abutting segment which is clamped with the blocking portion.

13. The mounting structure for an electrostatic air cleaner according to claim 12, wherein The fixing structure comprises a screw rod and a fixing plate, the fixing plate is detachably connected with the mounting frame, the screw rod is threadedly connected with the fixing plate, and the end of the screw rod is provided with an abutting block for abutting against the electrostatic air filter.

14. The mounting structure for an electrostatic air cleaner according to claim 1, wherein The electrostatic air filter comprises a frame, and the frame is internally provided with an ionization module and a dust collection module.

15. The mounting structure for an electrostatic air cleaner according to claim 1, wherein The size of the windward side of the frame is the same as the size of the air outlet side, or the size of the windward side of the frame is greater than the size of the air outlet side. The frame is provided as an integrated structure which is formed by buckling a front side cover and a rear side cover.

16. A mounting structure for an electrostatic air filter according to claim 15, wherein The frame is provided as a combined structure which is formed by splicing a splicing piece and a frame profile.

17. A mounting structure for an electrostatic air filter according to claim 15, wherein The fixing structure is connected with the mounting frame, and the electrostatic air filter is pushed into the mounting frame from the mounting opening.

18. A mounting method of a mounting structure of the electrostatic air cleaner according to any one of claims 1 to 17, characterized by, The fixing structure is rotated to abut against the electrostatic air filter to fix the electrostatic air filter on the mounting frame. ​ ​ The splicing structure of the electrostatic air filter is plugged in to realize quick electrical connection of multiple electrostatic air filters; One or more electrostatic air filters are selected to be connected with the power supply circuit or air gap.

19. An installation structure of an electrostatic air filter, characterized by comprising: The installation frame is provided with an installation opening on the side surface, and the fixing groove is arranged at the installation opening.

20. The mounting structure for an electrostatic air cleaner according to claim 19, wherein The installation frame is arranged in a matrix mode, the fixing grooves on the installation frames at the same layer are connected, the frame body of the electrostatic air filter is provided with a splicing structure, and the adjacent electrostatic air filters are spliced; The spliced electrostatic air filter group is pushed into the installation frame along the fixing groove, and one or more electrostatic air filters are selected to be connected with the power supply circuit or air gap.