An air filter element with airflow regulation structure and an air cleaner

Abstract

The utility model relates to the technical field of air cleaner, specifically disclose an air filter element and air cleaner with airflow adjusting structure. Air filter element includes filter core body, airflow adjusting piece and sealing washer, airflow adjusting piece covers at least part surface of filter core body's air inlet side or / and air outlet side, airflow adjusting piece is equipped with several vent hole that communicates filter core body surface through, sealing washer is through foaming solidification at the outer periphery of filter core body and will airflow adjusting piece fixed on filter core body. The utility model discloses through setting airflow adjusting piece at filter core body's air inlet side or / and air outlet side, makes airflow pressure distribution more uniform, reduces the problem of the filtration efficiency decline caused by local overload, prolongs the service life of air filter element. Meanwhile, the sealing washer made of foaming glue not only plays the sealing effect, but also can firmly bond airflow adjusting piece on filter core body, enhances the structural stability of whole filter core.

Description

Technical Field

[0001] This utility model relates to the technical field of air filters, and specifically discloses an air filter element with an airflow regulation structure and an air filter. Background Technology

[0002] Air filters, as a key component of filtration systems, are widely used in automobiles, industrial equipment, and indoor air purification. Their main function is to remove pollutants such as dust and particulate matter from the air to protect the engine or improve air quality.

[0003] However, current air filter cartridges have been found to accumulate dust particles in the area near the air inlet on the intake side. This is because the airflow velocity is higher on the intake side, making dust particles more likely to settle onto the filter surface under gravity. Furthermore, when airflow passes through the filter cartridge, it may create eddies near the air inlet, causing dust particles to accumulate in localized areas, leading to faster clogging of the filter paper in those areas. This phenomenon not only damages the filter cartridge structure but also results in premature clogging of the filter paper in some areas, while the filter media in other areas is not fully utilized, thus reducing overall filtration efficiency and the lifespan of the filter cartridge.

[0004] Therefore, how to design an air filter that can improve airflow distribution and reduce the accumulation of dust particles to improve filtration efficiency and extend filter life has become a technical problem that needs to be solved in this field. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide an air filter element and an air purifier with an airflow regulation structure.

[0006] On the one hand, this utility model discloses an air filter element with an airflow regulating structure, which adopts the following technical solution:

[0007] An air filter element with an airflow regulating structure includes: a filter element body, an airflow regulating component, and a sealing ring; the airflow regulating component covers at least a portion of the surface of the filter element body on the air inlet side and / or air outlet side, and the airflow regulating component has a plurality of ventilation holes that communicate with the surface of the filter element body; the sealing ring is foamed and cured on the outer periphery of the filter element body and fixes the airflow regulating component to the filter element body.

[0008] Preferably, the sealing ring has an annular groove formed around its periphery, and a snap-fit ​​boss is formed around the outer periphery of the annular groove.

[0009] Preferably, the airflow regulating component includes a frame, the frame having a hollow portion and an airflow regulating portion, the ventilation holes being opened on the airflow regulating portion, and the sealing ring bonding and fixing at least a portion of the edges of the frame to the filter element body.

[0010] Preferably, the long side of the frame is parallel or perpendicular to the long side of the filter element body, one side of the frame along the long side is a hollow part and the other side is an airflow regulating part, and the airflow regulating part is located at one corner of the surface of the filter element body.

[0011] Preferably, the filter element body includes a first filter element and a second filter element, the first filter element and the second filter element have different thicknesses, the first filter element and the second filter element are flush on the air inlet side, and the sealing ring surrounds the first filter element and the second filter element.

[0012] Preferably, the first filter element includes two first side plates and a first filter paper folded into a wavy shape, with the two first side plates respectively disposed on opposite sides of the first filter paper along the folding direction of the first filter paper. The second filter element includes two second side plates and a second filter paper folded into a wavy shape; the two second side plates are respectively disposed on opposite sides of the second filter paper along the folding direction of the second filter paper; the folding direction of the first filter paper of the first filter element and the second filter paper of the second filter element are the same, and the first side plates of the first filter element and the second side plates of the second filter element abut against each other.

[0013] Preferably, the filter element body has reinforcing rubber strips on the air inlet side and / or air outlet side.

[0014] On the other hand, this utility model discloses an air filter, which adopts the following technical solution:

[0015] An air filter includes an assembly and an air filter element with an airflow regulating structure as described above, installed in the assembly.

[0016] Preferably, the assembly includes an upper shell and a lower shell. The lower shell has an annular snap-fit ​​groove around its periphery. A snap-fit ​​protrusion is formed on one side of the snap-fit ​​groove. The snap-fit ​​protrusion of the sealing ring is embedded into the snap-fit ​​groove by deformation. The snap-fit ​​protrusion of the lower shell is inserted into the annular groove of the sealing ring. The sealing ring is pressed between the upper shell and the lower shell.

[0017] Preferably, the upper shell is connected to an air inlet pipe, the airflow direction of which is parallel to the long side of the filter element body; the lower shell is connected to an air outlet pipe, the airflow direction of which is perpendicular to the surface of the filter element body; the airflow regulating component is disposed on the air inlet side of the filter element body, and the airflow regulating component is directly opposite the air outlet pipe.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects:

[0019] This invention features an airflow regulating component on the inlet and / or outlet side of the filter element body. This component has several through-holes that effectively regulate the airflow entering the filter element, slowing down the airflow velocity at the inlet, optimizing the airflow path, and resulting in a more uniform airflow pressure distribution. This helps prevent the formation of localized eddies or high-pressure zones when the airflow enters the filter element, reducing the problem of decreased filtration efficiency caused by localized overload, thereby extending the service life of the air filter element and effectively improving its filtration performance. Simultaneously, the sealing ring not only provides a seal but also firmly bonds the airflow regulating component to the filter element body, enhancing the overall structural stability of the filter element, simplifying the manufacturing process, and reducing production costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the air filter element with airflow regulation structure in Example 1;

[0021] Figure 2 for Figure 1 Side view;

[0022] Figure 3 for Figure 1 The front view;

[0023] Figure 4 This is a schematic diagram of the airflow regulating component of the air filter element with an airflow regulating structure in Example 1;

[0024] Figure 5 for Figure 1 A schematic diagram showing the concealed airflow regulator.

[0025] Figure 6 This is a structurally disassembled schematic diagram of the air filter body with an airflow regulating structure according to Example 1;

[0026] Figure 7 This is a structurally disassembled schematic diagram of the second filter element of the air filter element with airflow regulation structure in Example 1;

[0027] Figure 8 This is a schematic diagram of the overall structure of the air filter element with airflow regulation structure in Example 2.

[0028] Explanation of icon numbers:

[0029] 1. Filter element body; 11. First filter element; 111. First side plate; 112. First filter paper; 12. Second filter element; 121. Second side plate; 122. Second filter paper; 13. Reinforcing strip; 2. Airflow regulating component; 21. Frame; 22. Hollowed-out part; 23. Airflow regulating part; 231. Ventilation hole; 3. Sealing ring; 31. Annular groove; 32. Snap-fit ​​boss. Detailed Implementation

[0030] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Example 1

[0032] This embodiment discloses an air filter element with an airflow regulating structure and an air purifier with the air filter element installed thereon. The air purifier includes an assembly and an air filter element with an airflow regulating structure installed in the assembly. The assembly includes an upper shell and a lower shell, which form a cavity for installing the air filter element. The upper shell is connected to an air inlet pipe, and the lower shell is connected to an air outlet pipe. Air introduced from the air inlet pipe passes through the air filter element, where impurities are filtered and blocked, and then discharged from the air outlet pipe.

[0033] Reference Figure 1-7 This embodiment discloses an air filter element with an airflow regulating structure, comprising a filter element body 1, an airflow regulating component 2, and a sealing ring 3. The airflow regulating component 2 covers at least a portion of the surface of the filter element body 1 on the air inlet side and / or air outlet side, and the airflow regulating component 2 has a plurality of ventilation holes 231 extending through and communicating with the surface of the filter element body 1. The sealing ring 3 is made of foam adhesive, which is foamed and cured on the outer periphery of the filter element body 1 to bond and fix the airflow regulating component 2 to the filter element body 1. This solution, by covering a portion of the surface of the filter element body 1 with the airflow regulating component 2, which has a perforated plate-like structure, can redistribute the airflow entering the filter element body 1, optimize the airflow path, and make the airflow pressure distribution more uniform. The filter element can be evenly loaded with dust, avoiding the problem of local overload caused by the formation of local eddies or high-pressure areas when the airflow enters the filter element, thus extending the service life of the air filter element and effectively improving the filtration effect of the filter element. In addition, the sealing ring 3 made of foam not only seals the air filter element within the air filter assembly, but also firmly bonds the airflow regulating component 2 to the filter element body 1, enhancing the structural stability of the entire filter element. This eliminates the need for additional fixing parts for the airflow regulating component 2, resulting in fewer parts, lower cost, and higher assembly efficiency.

[0034] In this embodiment, refer to Figure 1 as well as Figure 4 The ventilation hole 231 is circular. Of course, in other embodiments of this utility model, the ventilation hole 231 can also be triangular, rectangular, trapezoidal, prismatic or other shapes. This utility model does not limit its shape, as long as it can achieve the redistribution of airflow, optimize the airflow path and make the airflow pressure distribution more uniform.

[0035] As a preferred option, refer to Figure 1-3The sealing ring 3 has an annular groove 31 formed around its periphery, and a snap-fit ​​protrusion 32 formed around the outer periphery of the annular groove 31. The lower housing of the air filter has an annular snap-fit ​​groove around its periphery, and a snap-fit ​​protrusion is formed on one side of the snap-fit ​​groove. The snap-fit ​​protrusion 32 of the sealing ring 3 is embedded into the snap-fit ​​groove by deformation, and the snap-fit ​​protrusion of the lower housing is inserted into the annular groove 31 of the sealing ring 3. The sealing ring 3 is pressed between the upper housing and the lower housing. Because the sealing ring 3 in this design is made of foam, it has the characteristics of elastic deformation and recovery. The sealing ring 3 is foamed and molded with an annular groove 31 and a snap-fit ​​boss 32, which allows the sealing ring 3 to better fit and connect with the lower shell of the air filter. The snap-fit ​​boss 32 deforms, compresses, and elastically recovers to fill the snap-fit ​​groove, which not only achieves a good sealing effect and prevents air leakage inside the filter, ensuring that the air is effectively filtered by the filter element, but also provides a more stable connection between the sealing ring 3 and the lower shell. This avoids the problem of the sealing ring 3 loosening and affecting the sealing effect when the air filter is used in a vibrating environment. At the same time, it also facilitates the installation and removal of the filter element and improves the maintenance convenience of the filter.

[0036] As a preferred option, refer to Figure 4 The airflow regulating component 2 includes a frame 21, within which a perforated portion 22 and an airflow regulating portion 23 are provided. The surface of the filter element body 1 is exposed through the perforated portion 22, and ventilation holes 231 are formed on the airflow regulating portion 23. A sealing ring 3 connects the airflow regulating component 2 to the filter element body 1 by bonding and fixing at least a portion of the edge of the frame 21 to the filter element body 1. The frame 21 provides a support structure for the airflow regulating component 2, and the layout of the perforated portion 22 and the airflow regulating portion 23 can be adjusted according to actual needs. In this embodiment, the long side of the frame 21 is parallel to the long side of the filter element body 1. One side of the frame 21 along the long side is the perforated portion 22, and the other side is the airflow regulating portion 23. The airflow regulating portion 23 is located at a corner of the surface of the filter element body 1. The air inlet pipe of the upper shell blows air parallel to the long side of the filter element body 1, and the air outlet pipe blows air perpendicular to the surface of the filter element body 1. The airflow regulating component 2 is located on the air inlet side of the filter element body 1, and the airflow regulating component 2 is directly opposite the air outlet pipe. By adopting the above layout, the airflow distribution can be optimized, the gas impact force can be effectively dispersed, and the gas can be spread more evenly on the surface of the filter element body 1.

[0037] As a preferred embodiment, the sealing ring 3 is made of cured polyurethane foam, and the airflow regulating component 2 is made of plastic injection molding. Polyurethane foam has excellent sealing, adhesion, and elasticity, ensuring a reliable sealing connection between the sealing ring 3 and the filter element body 1 and the airflow regulating component 2 after curing. It can also adapt to certain deformations, ensuring a tight and effective seal with the assembly. The plastic injection-molded airflow regulating component 2 has high production efficiency and good mechanical properties, meeting the needs of airflow regulation and facilitating the design and manufacture of complex structures.

[0038] As a preferred option, refer to Figure 5-7 The filter body 1 includes a first filter element 11 and a second filter element 12. The thickness of the first filter element 11 is greater than the thickness of the second filter element 12. The first filter element 11 and the second filter element 12 are flush on the air inlet side. The sealing ring 3 surrounds the first filter element 11 and the second filter element 12. Specifically, the first filter element 11 includes two first side plates 111 and a first filter paper 112 folded into a wavy shape. The two first side plates 111 are respectively disposed on opposite sides of the first filter paper 112 along the folding direction of the first filter paper 112. The second filter element 12 includes two second side plates 121 and a second filter paper 122 folded into a wavy shape. The two second side plates 121 are respectively disposed on opposite sides of the second filter paper 122 along the folding direction of the second filter paper 122. The folding directions of the first filter paper 112 of the first filter element 11 and the second filter paper 122 of the second filter element 12 are the same, and the first side plates 111 of the first filter element 11 and the second side plates 121 of the second filter element 12 abut against each other. The first filter element 11 and the second filter element 12, which are of different thicknesses, form a notch on the air outlet side. This notch can match the protruding contour on one side of the lower housing of the assembly. One side of the first filter element 11 is inclined and trapezoidal, while the second filter element 12 is rectangular. The first filter element 11 and the second filter element 12 are combined to form a trapezoidal shape. The trapezoidal filter element is formed by folding paper, which reduces the difficulty of folding and assembling the filter element body 1, thereby improving work efficiency. In addition, the sealing ring 3 can better splice the first filter element 11 and the second filter element 12 together by foaming and curing, which improves the structural stability of the filter element.

[0039] As a preferred embodiment, the filter element body 1 is provided with a reinforcing strip 13 on the air inlet side and / or air outlet side. In this embodiment, the width of the first filter element 11 is larger than that of the second filter element 12. The reinforcing strip 13 is disposed on the first filter element 11 and perpendicular to the folding direction of the filter element. The placement of the reinforcing strip 13 can effectively enhance the structural strength of the filter element body 1, prevent the filter element body from deforming or being damaged due to airflow impact or other reasons during use, thereby extending the service life of the filter element and improving its reliability and stability.

[0040] Example 2

[0041] This embodiment discloses an air filter element with an airflow regulating structure. Unlike Embodiment 1, it refers to... Figure 8 The long side of frame 21 is perpendicular to the long side of filter body 1. This structure results in a shorter span of frame 21, which helps improve the stress on airflow regulator 2 and enhances the connection stability of airflow regulator 2 on the surface of filter body 1. Furthermore, in this embodiment, frame 21 spans at least a portion of the surfaces of the first filter element 11 and the second filter element 12, providing support and load-bearing capacity for the airflow regulator 2. This also contributes to the connection stability between the first filter element 11 and the second filter element 12, making them less prone to separation under vibration or high pressure.

[0042] The technical solution provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. An air filter element with an airflow regulating structure, characterized in that, include: The filter element body (1), the airflow regulating component (2), and the sealing ring (3) are provided. The airflow regulating component (2) covers at least a portion of the surface of the filter element body (1) on the air inlet side and / or air outlet side. The airflow regulating component (2) has several ventilation holes (231) that communicate with the surface of the filter element body (1). The sealing ring (3) is foamed and cured on the outer periphery of the filter element body (1) and fixes the airflow regulating component (2) to the filter element body (1).

2. The air filter element with an airflow regulating structure according to claim 1, characterized in that, The sealing ring (3) has an annular groove (31) formed around its periphery, and a snap-fit ​​boss (32) is formed around the outer periphery of the annular groove (31).

3. The air filter element with an airflow regulating structure according to claim 1, characterized in that, The airflow regulating component (2) includes a frame (21), the frame (21) is provided with a hollow part (22) and an airflow regulating part (23), the ventilation hole (231) is opened on the airflow regulating part (23), and the sealing ring (3) glues and fixes at least part of the edge of the frame (21) to the filter body (1).

4. The air filter element with an airflow regulating structure according to claim 3, characterized in that, The long side of the frame (21) is parallel or perpendicular to the long side of the filter body (1). One side of the frame (21) along the long side is a hollow part (22) and the other side is an airflow regulating part (23). The airflow regulating part (23) is located at a corner of the surface of the filter body (1).

5. The air filter element with an airflow regulating structure according to claim 1, characterized in that, The filter body (1) includes a first filter element (11) and a second filter element (12). The first filter element (11) and the second filter element (12) have different thicknesses. The first filter element (11) and the second filter element (12) are flush on the air inlet side. The sealing ring (3) surrounds the first filter element (11) and the second filter element (12).

6. The air filter element with an airflow regulating structure according to claim 5, characterized in that, The first filter element (11) includes two first side plates (111) and a first filter paper (112) folded into a wavy shape. The two first side plates (111) are respectively disposed on opposite sides of the first filter paper (112) along the folding direction of the first filter paper (112). The second filter element (12) includes two second side plates (121) and a second filter paper (122) folded into a wavy shape. The two second side plates (121) are respectively disposed on opposite sides of the second filter paper (122) along the folding direction of the second filter paper (122). The folding direction of the first filter paper (112) of the first filter element (11) is the same as that of the second filter paper (122) of the second filter element (12). The first side plates (111) of the first filter element (11) and the second side plates (121) of the second filter element (12) abut against each other.

7. The air filter element with an airflow regulating structure according to claim 1, characterized in that, The filter body (1) is provided with reinforcing rubber strips (13) on the air inlet side and / or air outlet side.

8. An air filter, characterized in that, Includes the assembly and the air filter element with airflow regulation structure as described in any one of claims 1-7, installed in the assembly.

9. The air filter according to claim 8, characterized in that, The assembly includes an upper shell and a lower shell. The lower shell has an annular snap-fit ​​groove around its periphery and a snap-fit ​​protrusion on one side of the snap-fit ​​groove. The snap-fit ​​protrusion (32) of the sealing ring (3) is embedded into the snap-fit ​​groove by deformation. The snap-fit ​​protrusion of the lower shell is inserted into the annular groove (31) of the sealing ring (3). The sealing ring (3) is pressed between the upper shell and the lower shell.

10. The air filter according to claim 9, characterized in that, The upper shell is connected to an air inlet pipe, and the air blowing direction of the air inlet pipe is parallel to the long side of the filter element body (1). The lower shell is connected to an air outlet pipe, and the air outlet direction of the air outlet pipe is perpendicular to the surface of the filter element body (1). The airflow regulating component (2) is disposed on the air inlet side of the filter element body (1), and the airflow regulating component (2) is directly opposite the air outlet pipe.

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