Filtering device and air purifier
By using an activated carbon filter in the outer frame in the air purifier and setting up a shielding cotton, the problem of activated carbon falling off easily is solved, and the filtration efficiency and service life are improved.
Patent Information
- Application Number
- CN202421678941.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-07-15
AI Technical Summary
Activated carbon is prone to fall off in the filter mesh holes, resulting in a decrease in filtration effect.
In the air purifier, an activated carbon filter is embedded in the outer frame, and a first shielding cotton is provided on one side to closely fit, preventing the activated carbon from falling out of the mesh and forming a filter channel.
It improves the filtration efficiency of activated carbon, increases the contact area with air, prevents the activated carbon from falling off, and extends the service life.
Smart Images
Figure CN223159066U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air purification, in particular to a filtering device and an air purifier. Background Art
[0002] After home decoration, the content of harmful gases such as formaldehyde often exceeds the standard. Air quality problems caused by too many people and a relatively closed environment in office spaces have caused people to pay increasing attention to air quality issues. Air purification products such as air conditioners and air purifiers have become essential products for homes and offices.
[0003] To improve air purification, air purifiers often use activated carbon filters. Activated carbon effectively absorbs smoke, odors, and other volatile organic compounds, and can also effectively degrade toxic gases like formaldehyde in homes and cars. However, activated carbon is typically bonded to the pores of the filter, making it susceptible to falling out during the filtration process, reducing filtration effectiveness. Utility Model Content
[0004] The main purpose of the utility model is to provide a filtering device and an air purifier, aiming to solve the problem that the activated carbon detached from the pore wall of the filter is easily separated from the mesh.
[0005] To achieve the above-mentioned purpose, the filter device proposed in the present invention is installed in an air purifier, and the filter device includes:
[0006] outer frame;
[0007] an activated carbon filter, embedded in the outer frame, the activated carbon filter having a plurality of mesh holes spaced apart, and activated carbon attached to the hole wall of each mesh hole, the activated carbon being arranged along the circumference of the hole wall to form a filter channel for gas to pass through; and
[0008] The first shielding cotton is embedded in the outer frame. The first shielding cotton is attached to one side of the activated carbon filter to confine the activated carbon that has detached from the hole wall within the mesh, and the gas enters the filter channel through the first shielding cotton.
[0009] Optionally, in an embodiment of the present invention, the filtering device further includes a second shielding cotton, and the second shielding cotton is tightly arranged on a side of the activated carbon filter away from the first shielding cotton.
[0010] Optionally, in an embodiment of the present invention, the filtering device further includes a first reinforcing net, which is embedded in the outer frame and located on a side of the first shielding cotton away from the activated carbon filter.
[0011] Optionally, in an embodiment of the present utility model, the filtering device further includes a second reinforcing mesh, which is embedded in the outer frame and located on the side of the second shielding cotton away from the activated carbon filter mesh.
[0012] Optionally, in an embodiment of the present utility model, the filtering device further includes a desiccant, which is embedded in the activated carbon filter mesh and is disposed close to the activated carbon.
[0013] Optionally, in an embodiment of the present utility model, there is a gap between two adjacent mesh holes, and the desiccant is embedded in the gap.
[0014] Optionally, in an embodiment of the present utility model, the activated carbon filter mesh is arranged in a honeycomb shape.
[0015] Optionally, in an embodiment of the present utility model, the activated carbon is adhesively fixed to the pore wall of the mesh hole.
[0016] Optionally, in an embodiment of the present utility model, the filtering device further includes a handle, which is disposed on the periphery of the outer frame.
[0017] Optionally, in an embodiment of the present utility model, the filtering device further includes a seal, which is sleeved on the outer periphery of the outer frame.
[0018] To achieve the above object, the present utility model further provides an air purifier, which includes the filtering device described in any one of the above technical solutions.
[0019] Compared with the prior art, in a technical solution provided by the present utility model, an activated carbon filter mesh is embedded inside the outer frame and installed on the air purifier, thereby realizing the filtration of air. To facilitate the filling of activated carbon, a plurality of mesh holes are spaced on the activated carbon filter mesh, and a large amount of activated carbon is attached to the pore wall of each mesh hole. The activated carbon is uniformly arranged along the circumferential direction of the pore wall, and a void is formed at the center of the mesh hole to form a filtration channel for gas passage. The uniform distribution of the activated carbon increases the contact area with air and is conducive to improving the filtration efficiency; since most of the activated carbon is in powder, granular or columnar form, it is very easy to fall off from the pore wall. To prevent it from leaving the mesh holes on the activated carbon filter mesh, a first shielding cotton is further provided inside the outer frame, and the first shielding cotton is closely attached to the activated carbon filter mesh, which can form a certain blockage to the mesh holes on one side of the activated carbon filter mesh, prevent the activated carbon that has detached from the pore wall from leaving the mesh holes, but confine it within the mesh holes, thereby ensuring the filtration efficiency of the activated carbon filter mesh. Description of the Drawings
[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.
[0021] Figure 1 It is a schematic structural diagram of an activated carbon filter screen in an embodiment of the filter device of the present invention;
[0022] Figure 2 It is an exploded view of the structure of another embodiment of the filter device of the present invention;
[0023] Figure 3 It is a side view of the structure of another embodiment of the filter device of the present invention;
[0024] Figure 4 It is a schematic structural diagram of yet another embodiment of the filter device of the present invention.
[0025] Explanation of the reference numerals in the drawings:
[0026] Label Name Label Name 100 Outer frame 500 First reinforcing mesh 200 Activated carbon filter 600 Second reinforcing mesh 210 Mesh hole 700 Handle 300 First shielding cotton 800 Seal 400 Second shielding cotton
[0027] The realization of the object, functional characteristics and advantages of the present invention will be further described in conjunction with the embodiments and with reference to the drawings. Specific embodiments
[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.
[0029] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.
[0030] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel scenarios. Taking "A and / or B" as an example, it includes Scenario A, or Scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.
[0032] In order to improve the air purification effect, activated carbon filters are usually used in air purifiers. Activated carbon can effectively adsorb smoke, odors, and other volatile organic compounds, and can also strongly degrade toxic gases such as formaldehyde in the room or in the car. However, activated carbon is usually bonded in the holes of the filter mesh, and during the filtering process, the activated carbon easily falls out of the holes, thereby reducing the filtering effect.
[0033] Based on this, the present utility model proposes a filtering device. A first blocking cotton is arranged inside the outer frame, and the first blocking cotton is closely attached to the activated carbon filter mesh, which can form a certain blockage to the mesh holes on one side of the activated carbon filter mesh, preventing the activated carbon that has separated from the pore wall from leaving the mesh holes, but limiting it within the mesh holes, thereby ensuring the filtering efficiency of the activated carbon filter mesh.
[0034] As Figures 1 to 4 shown, this filtering device is installed in an air purifier, and this filtering device includes:
[0035] An outer frame 100;
[0036] An activated carbon filter mesh 200, embedded in the outer frame 100. A plurality of mesh holes 210 are arranged at intervals on the activated carbon filter mesh 200, and activated carbon is attached to the pore walls of each mesh hole 210. The activated carbon is arranged along the circumferential direction of the pore wall to enclose a filtering channel for gas to pass through; and
[0037] The first shielding cotton 300 is embedded in the outer frame 100 and is attached to one side of the activated carbon filter screen 200 to confine the activated carbon detached from the pore wall within the mesh holes 210, and the gas enters the filter channel through the first shielding cotton 300.
[0038] In the technical solution adopted in this embodiment, the activated carbon filter screen 200 is embedded inside the outer frame 100 and is installed on the air purifier, thereby realizing the filtration of air. To facilitate the filling of activated carbon, a plurality of mesh holes 210 are provided at intervals on the activated carbon filter screen 200, and a large amount of activated carbon is attached to the pore wall of each mesh hole 210. The activated carbon is uniformly arranged along the circumferential direction of the pore wall, and a void is formed at the center of the mesh hole 210 to form a filter channel for the gas to pass through. The uniform distribution of the activated carbon increases the contact area with the air and is conducive to improving the filtration efficiency. Since most of the activated carbon is in powder, granular or columnar form, it is very easy to fall off from the pore wall. To prevent it from leaving the mesh holes 210 on the activated carbon filter screen 200, a first shielding cotton 300 is also provided inside the outer frame 100, and the first shielding cotton 300 is closely attached to the activated carbon filter screen 200, which can form a certain blockage to the mesh holes 210 on one side of the activated carbon filter screen 200, prevent the activated carbon detached from the pore wall from leaving the mesh holes 210, but confine it within the mesh holes 210, thereby ensuring the filtration efficiency of the activated carbon filter screen 200.
[0039] Specifically, in this embodiment, the material of the outer frame 100 is not specifically limited. For example, the outer frame 100 can be made of waterproof cardboard, galvanized iron frame, aluminum frame or stainless steel. Similarly, the material of the activated carbon filter screen 200 is not specifically limited either. For example, it can be polyurethane foam or synthetic fiber cotton, etc. It should be noted that the material of the first shielding cotton 300 is not specifically limited either. For example, it can be nylon fiber cotton, etc. It should be explained that in order for the first shielding cotton 300 to play a role in preventing the separation of the activated carbon from the mesh holes 210, the density of the first shielding cotton 300 should be higher than that of the activated carbon filter screen 200 to ensure that the activated carbon cannot fall through the holes of the first shielding cotton 300, thereby forming a shield for the activated carbon detached from the pore wall of the mesh holes 210 and preventing it from separating from the mesh holes 210.
[0040] Optionally, as Figure 2 and Figure 3As shown, in an embodiment of the present utility model, in order to further improve the shielding effect on the activated carbon, the filtering device further includes a second shielding cotton 400, and the second shielding cotton 400 is tightly abutted on the side of the activated carbon filter screen 200 away from the first shielding cotton 300. In this way, the first shielding cotton 300 and the second shielding cotton 400 are respectively arranged in a fitting manner on the opposite sides of the activated carbon filter screen 200, which can form double-sided shielding for the activated carbon separated from the pore wall, firmly fix it inside the mesh holes 210, and avoid the problem of reduced filtering efficiency caused by a large amount of shedding of the activated carbon.
[0041] Optionally, as Figure 2 shown, in an embodiment of the present utility model, in order to improve the structural strength of the entire filtering device, the filtering device further includes a first reinforcing mesh 500, and the first reinforcing mesh 500 is embedded in the outer frame 100 and is located on the side of the first shielding cotton 300 away from the activated carbon filter screen 200. Preferably, the first reinforcing mesh 500 is made of a metal material. Of course, it can also be other materials with high strength and excellent air permeability. Further preferably, in another embodiment of the present utility model, in order to further improve the structural strength of the filtering device, the filtering device further includes a second reinforcing mesh 600, and the second reinforcing mesh 600 is embedded in the outer frame 100 and is located on the side of the second shielding cotton 400 away from the activated carbon filter screen 200. It should be noted that the first reinforcing mesh 500 and the second reinforcing mesh 600 can be arranged on two opposite surfaces of the outer frame 100 at the same time, or one of them can be selected, and specifically can be selected according to the strength requirements.
[0042] Optionally, in an embodiment of the present utility model, since the adsorption capacity of the activated carbon decreases after being damp, the filtering device further includes a desiccant. By evenly embedding the desiccant on the activated carbon filter screen 200, it can play a certain drying role for the activated carbon in the mesh holes 210 and prevent it from becoming ineffective due to moisture. Preferably, the desiccant is arranged close to the activated carbon to ensure a relatively excellent drying effect, avoid the problem of moisture accumulation in the pores of the activated carbon resulting in a decrease in the pore size and adsorption capacity, and ensure its adsorption effect. Further preferably, in another embodiment of the present utility model, as Figure 1 shown, there is a gap between two adjacent mesh holes 210, and the desiccant is embedded in the gap. In this way, it can be ensured that the periphery of the activated carbon in each mesh hole 210 is surrounded by the desiccant, which is beneficial to the uniform drying of the activated carbon.
[0043] Optionally, as Figure 2 shown, in an embodiment of the present utility model, in order to ensure the air filtering effect of the filter screen, the activated carbon filter screen 200 is arranged in a honeycomb shape, so that the activated carbon can be evenly distributed, effectively increasing its contact area with the air and greatly improving the filtering efficiency of the activated carbon.
[0044] Optionally, in an embodiment of the present utility model, the activated carbon is adhesively fixed to the pore wall of the mesh holes 210, forming a unique filtering structure, and can increase the stability of the structure, preventing the activated carbon from scattering or losing during use. This can extend the service life and reduce the frequency of maintenance and replacement.
[0045] Optionally, as Figure 2 and Figure 4 shown, in an embodiment of the present utility model, for the convenience of installation and disassembly of the filtering device, the filtering device further includes a handle 700, and the handle 700 is provided on the periphery of the outer frame 100. The shape of the outer frame 100 is not specifically limited. For example, it can be square or circular, etc. Preferably, the outer frame 100 is arranged in a square shape, and one handle 700 is respectively provided along the opposite sides of the square outer frame 100. Further preferably, the two handles 700 are arranged corresponding to each other.
[0046] Optionally, as Figure 2 shown, in an embodiment of the present utility model, in order to improve the mating sealing performance between the filtering device and the purification chamber in the air purifier, the filtering device further includes a sealing member 800. Preferably, the sealing member 800 is sleeved on the outer periphery of the outer frame 100, thereby effectively sealing the open end of the purification chamber. In this embodiment, the material of the sealing member 800 is not specifically limited. For example, it can be sealing cotton or sealing rubber, etc.
[0047] The present utility model also proposes an air purifier, which includes a purifier body and a filtering device. The specific structure of the filtering device refers to the above embodiments. Since this air purifier adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, and will not be elaborated one by one here.
[0048] The above are only optional embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made under the inventive concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.
Claims
1. A filtering device, installed in an air purifier, characterized in that, The filtering device comprises: outer frame; an activated carbon filter, embedded in the outer frame, the activated carbon filter having a plurality of mesh holes spaced apart, and activated carbon attached to the hole wall of each mesh hole, the activated carbon being arranged along the circumference of the hole wall to form a filter channel for gas to pass through; and The first shielding cotton is embedded in the outer frame. The first shielding cotton is attached to one side of the activated carbon filter to confine the activated carbon that has detached from the hole wall within the mesh, and the gas enters the filter channel through the first shielding cotton.
2. The filtering device according to claim 1, characterized in that, The filtering device further includes a second shielding cotton, which is tightly arranged on a side of the activated carbon filter away from the first shielding cotton.
3. The filtering device according to claim 2, characterized in that, The filtering device further includes a first reinforcing net, which is embedded in the outer frame and located on a side of the first shielding cotton away from the activated carbon filter.
4. The filtering device according to claim 3, characterized in that, The filtering device further includes a second reinforcing net, which is embedded in the outer frame and located on a side of the second shielding cotton away from the activated carbon filter.
5. The filtering device according to claim 1, characterized in that, The filtering device further comprises a desiccant, which is embedded in the activated carbon filter and arranged close to the activated carbon.
6. The filtering device according to claim 5, characterized in that, There is a gap between two adjacent mesh holes, and the desiccant is embedded in the gap.
7. The filtering device according to claim 1, characterized in that, The activated carbon filter is arranged in a honeycomb shape; and / or, The activated carbon is bonded and fixed to the pore walls of the mesh.
8. The filtering device according to any one of claims 1-7, characterized in that, The filtering device further includes a handle, which is arranged on the periphery of the outer frame.
9. The filtering device according to any one of claims 1-7, characterized in that, The filter device further includes a sealing member, which is sleeved on the outer periphery of the outer frame.
10. An air purifier, characterized in that, The filter comprises the filter device according to any one of claims 1 to 9.