Antibacterial coating structure of return air filter
By designing a multi-layer antibacterial coating structure on the return air filter, the problems of microbial growth and short-lasting antibacterial effect are solved, ensuring the stability of the filter and air quality, and achieving a balance between long-term antibacterial effect and physical performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2026-03-20
AI Technical Summary
Existing return air filter designs lack effective antibacterial measures, which means that the problem of microbial growth cannot be fundamentally solved. The antibacterial effect is not lasting and the antibacterial range is limited. At the same time, it may affect the physical properties of the filter, such as air permeability and resistance, resulting in poor long-term stable operation.
The antibacterial coating employs a multi-layer structure, including a base layer, a transition layer, an antibacterial layer, an adhesive layer, and a protective layer. Through tight bonding and adhesion, the stability and effectiveness of the antibacterial coating are ensured, inhibiting bacterial growth and spread, and maintaining the physical properties of the filter unaffected.
It effectively inhibits the growth and reproduction of bacteria on the filter surface, ensures air hygiene quality, extends the filter's service life, reduces maintenance frequency, improves the operating efficiency of the ventilation system, and the antibacterial material is safe and non-toxic.
Smart Images

Figure CN224013137U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to air filtration related technical field especially, it relates to air return filter antibacterial coating structure. BACKGROUND
[0002] Air return filter plays a key role in air circulation system, the main function of air return filter is to filter circulating air, removes dust, particulate matter and other impurities in it to maintain the cleanliness of indoor air, with people's increasing attention to health and sanitary environment, these microorganisms are easy to breed on the surface and inside filter in the use process of air return filter, therefore, air return filter antibacterial coating structure is particularly needed.
[0003] But the existing air return filter design mostly does not have the effective design specially for antibacterial, some conventional cleaning and maintenance measures cannot fundamentally solve the microorganism breeding problem, traditional air return filter mostly only pays attention to the function of filtering particulate matter, lacks effective antibacterial means, has the problems such as non-durable antibacterial effect, limited antibacterial range, and the antibacterial technology can have negative influence on the original physical performance of filter, such as air permeability, resistance, etc., which is not conducive to the long-term stable operation of air return filter. CONTENT OF UTILITY MODEL
[0004] The utility model discloses a air return filter antibacterial coating structure to solve the above-mentioned background art in the existing air return filter design mostly does not have the effective design specially for antibacterial, some conventional cleaning and maintenance measures cannot fundamentally solve the microorganism breeding problem, traditional air return filter mostly only pays attention to the function of filtering particulate matter, lacks effective antibacterial means, has the problems such as non-durable antibacterial effect, limited antibacterial range, and the antibacterial technology can have negative influence on the original physical performance of filter, such as air permeability, resistance, etc.
[0005] , which is not conducive to the long-term stable operation of air return filter.
[0006] In order to achieve the above object, the utility model provides the following technical scheme: Return air filter antibacterial coating structure, including return air filter frame, the outside fixed mounting of return air filter frame has convex connecting piece no.
[0007] Preferably, the size structure of the convex connecting piece one and the convex connecting piece two are same, the combination of the convex connecting piece one and the convex connecting piece two is matched with the clamping groove.
[0008] Preferably, the size of the front filter plate is greater than the size of the filter outlet, the front filter plate and the filter outlet do not contact each other, and the return air filter frame is fixedly connected with the front filter plate through the clamping block.
[0009] Preferably, the base layer is the filter screen base material of the return air filter, the surface of the base layer is provided with the transition layer, and the base layer is closely attached to the transition layer.
[0010] Preferably, the transition layer is located at the left side of the antibacterial layer, and the transition layer is closely attached to the antibacterial layer.
[0011] Preferably, the limiting groove and the limiting column are provided with same multiple, and the multiple limiting grooves and limiting columns are matched.
[0012] Compared with the prior art, the air return filter antibacterial coating structure has the advantages that the growth and reproduction of various bacteria on the surface of the filter can be effectively inhibited through the multi-layer arrangement of the base layer, the transition layer, the antibacterial layer and the bonding layer, the possibility of the bacteria breeding and spreading in the air return system is greatly reduced, the sanitary quality of the air is ensured, the air quality requirement of the environment is strict, meanwhile, the antibacterial coating structure can play the antibacterial role without adversely affecting the original air permeability, filtering precision and other physical filtering performance of the air return filter, the air return filter can continuously and stably filter the air, has good stability, can continuously maintain the antibacterial ability in a long-term use process, reduces the cost and workload of frequently replacing or maintaining the filter, prolongs the service life of the air return filter, improves the operation efficiency of the entire ventilation system, the antibacterial material used is safe and non-toxic, harmful substances are not released in the use process, and the practicality is high. BRIEF DESCRIPTION OF DRAWINGS
[0013] Fig. 1 is a schematic diagram of the three-dimensional structure of the utility model;
[0014] Fig. 2 is a schematic diagram of the three-dimensional split structure of the utility model;
[0015] Fig. 3 is a schematic diagram of the connection part structure of the utility model;
[0016] Fig. 4 is a schematic diagram of the three-dimensional side structure of the utility model;
[0017] Fig. 5 is a schematic diagram of the filter layer structure of the utility model;
[0018] Fig. 6 is a schematic diagram of the filter layer split structure of the utility model.
[0019] In the drawing: 1, air return filter frame; 2, protruding connector one; 3, filter outlet; 4, front filter plate; 5, protruding connector two; 6, clamping block; 7, clamping groove; 8, base layer; 9, transition layer; 10, antibacterial layer; 11, bonding layer; 12, inner protective layer; 13, limiting groove; 14, outer protective layer; 15, limiting column.
[0020] 10, antibacterial layer; 11, bonding layer; 12, inner protective layer; 13, limiting groove; 14, outer protective layer; 15, limiting column. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0022] Please refer to Figures 1-6, the utility model provides a technical scheme: return air filter antibacterial coating
[0023] The utility model discloses a technical scheme: return air filter antibacterial coating
[0024] Further, the size structure of the protruding connecting piece one 2 and the protruding connecting piece two 5 are same, the combination body of protruding connecting piece one 2 and protruding connecting piece two 5 is adapted with the clamping groove 7, through the setting of protruding connecting piece one 2 and protruding connecting piece two 5, can effectively fix return air filter frame 1 with front filter plate 4, improve the stability of whole, also convenient for the installation and dismounting of return air filter frame 1 and front filter plate 4.
[0025] Further, the size of front filter plate 4 is greater than the size of filter outlet 3, and front filter plate 4 and filter outlet 3 do not contact each other, and return air filter frame 1 is fixed
[0026] Further, the size of front filter plate 4 is greater than the size of filter outlet 3, and front filter plate 4 and filter outlet 3 do not contact each other, and return air filter frame 1 is fixed
[0027] Further, the base layer 8 is the filter screen base material of return air filter, the surface of base layer 8 is provided with transition layer 9, and base layer 8 and transition layer 9 are closely combined, by setting base layer 8, effectively provide the stable support for the whole antibacterial coating, have good physical strength, make the filter keep structural integrity under the long-term use and air flow impact, guarantee the stability of antibacterial coating, be favorable to the adhesion of subsequent antibacterial coating material, make antibacterial layer 10 and base layer 8 closely combine.
[0028] Further, the transition layer 9 is made of nano-titanium dioxide mixed with silane coupling agent, the transition layer 9 is located on the left side of the antibacterial layer 10, the transition layer 9 is closely attached to the antibacterial layer 10, through the setting of the transition layer 9, the bottom filter material and the antibacterial coating can be effectively connected, the antibacterial coating is firmly attached to the filter surface, the antibacterial coating is prevented from peeling off due to factors such as airflow impact and vibration during use, the long-term stable play of the antibacterial function is ensured, the integrity of the antibacterial coating is protected, when the filter is extruded or deformed by a certain external force, the damage to the antibacterial coating is reduced, and the antibacterial effect is maintained.
[0029] Further, the material of the bonding layer 11 is an organic silicon adhesive, the limiting grooves 13 and the limiting columns 15 are all provided with the same plurality of limiting grooves 13 and limiting columns 15, and the plurality of limiting grooves 13 and limiting columns 15 are all matched, the outer protective layer 14 is made of transparent high molecular polymer material, through the setting of the bonding layer 11, a firm connection between the return air filter base body and the antibacterial coating can be established, so that the antibacterial coating is not easy to fall off.
[0030] Working principle: when in use, the workers separate the two groups of clamping blocks 6 from the combination of the protruding connecting piece one 2 and the protruding connecting piece two 5 through the clamping grooves 7, at this time the workers can take down the front filter plate 4, which is convenient for disassembly and installation, at this time the workers connect the limiting columns 15 on the outer protective layer 14 with the limiting grooves 13 on the inner protective layer 12, after closely attaching, the workers put
[0031] into the inside of the return air filter frame 1, and close to the filter outlet 3, at this time the workers put the bonding layer 11 into the inside of the return air filter frame 1 and closely attach it to the inner protective layer 12, at this time the workers put the antibacterial layer 10 into the inside of the return air filter frame 1 and closely attach it to the bonding layer 11, at this time the workers put the transition layer 9 into the inside of the return air filter frame 1 and closely attach it to the antibacterial layer 10, finally the workers put the base layer 8 into the inside of the return air filter frame 1 and closely attach it to the transition layer 9, at this time the workers take the protruding connecting piece two 5 on the front filter plate 4 and connect it with the protruding connecting piece one 2 on the return air filter frame 1, at this time the workers lock the clamping grooves 7 on the clamping blocks 6 with the combination of the protruding connecting piece one 2 and the protruding connecting piece two 5, at this time the fixation between the front filter plate 4 and the return air filter frame 1 is completed, at this time the installation of the return air filter antibacterial coating structure has been completed, which is convenient for installation and disassembly, the operation is simple and convenient, and the practicality is high.
[0032] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.
Claims
1. A return air filter antibacterial coating structure, comprising a return air filter frame (1), characterized in that: The return air filter frame (1) is fixedly installed with a protruding connector (2) on its outer side. The return air filter frame (1) is provided with a filter outlet (3) on its outer side. The return air filter frame (1) is provided with a front filter plate (4) inside. The front filter plate (4) is fixedly installed with a protruding connector (5) on its outer side. The protruding connector (5) is provided with a snap-fit block (6) on its outer side. The snap-fit block (6) is provided with a snap-fit groove (7) on its outer side. The return air filter frame (1) is provided with a base layer (8) inside. A transition layer (9) is fixedly installed on the outer side of the base layer (8), an antibacterial layer (10) is fixedly installed on the outer side of the transition layer (9), an adhesive layer (11) is fixedly installed on the outer side of the antibacterial layer (10), an inner protective layer (12) is fixedly installed on the outer side of the adhesive layer (11), a limiting groove (13) is opened on the outer side of the inner protective layer (12), an outer protective layer (14) is provided on the outer side of the inner protective layer (12), and a limiting post (15) is fixedly installed on the outer side of the outer protective layer (14).
2. The antibacterial coating structure of the return air filter according to claim 1, characterized in that: The protruding connector one (2) and the protruding connector two (5) are the same in size and structure, and the combination of the protruding connector one (2) and the protruding connector two (5) is adapted to the snap-fit groove (7).
3. The antibacterial coating structure of the return air filter according to claim 1, characterized in that: The size of the front filter plate (4) is larger than the size of the filter outlet (3). The front filter plate (4) and the filter outlet (3) do not contact each other. The return air filter frame (1) is fixedly connected to the front filter plate (4) by a snap-fit block (6).
4. The antibacterial coating structure of the return air filter according to claim 1, characterized in that: The base layer (8) is the filter substrate material of the return air filter. A transition layer (9) is provided on the surface of the base layer (8), and the base layer (8) and the transition layer (9) are closely attached.
5. The antibacterial coating structure of the return air filter according to claim 1, characterized in that: The transition layer (9) is located on the left side of the antibacterial layer (10), and the transition layer (9) is in close contact with the antibacterial layer (10).
6. The antibacterial coating structure of the return air filter according to claim 1, characterized in that: The limiting groove (13) and the limiting post (15) are provided in multiple identical quantities, and the multiple limiting grooves (13) and limiting posts (15) are all compatible with each other.