Filter for air sterilizer

The housing connection, featuring a snap-fit ​​unit and fixed edge design, solves the sealing and cost issues of air sterilizer filters, achieving efficient filtration of small particles and extending service life.

CN223832036UActive Publication Date: 2026-01-27SHINVA MEDICAL INSTR CO LTD
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Patent Information

Application Number
CN202423276111.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2026-01-27
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

Existing air sterilizer filters suffer from poor sealing, complex structure, and high cost. They are also difficult to effectively filter small particles, making the sterilization module susceptible to contamination and resulting in a short service life.

Method used

The first and second housings are connected by a snap-fit ​​unit, combined with a fixed edge and baffle design to ensure a reliable connection of the housings, prevent displacement, and reduce costs by using plastic materials.

Benefits of technology

This invention achieves a filter with good sealing performance, simple structure, and low cost, which can effectively filter small particles, extend service life, and reduce maintenance frequency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a filter for an air sterilizer and belongs to the technical field of filters. Comprising a first shell, a second shell and a filtering consumable, and the filtering consumable is fixed in a mounting cavity between the first shell and the second shell; the first shell is provided with a plurality of first buckle units, the second shell is provided with a plurality of second buckle units, the shell further comprises a plurality of fixing edges, the fixing edges are arranged on the first shell, the first buckle units are arranged between the two fixing edges, and the second buckle units are clamped between the first buckle units and the fixing edges; a fixing edge is arranged in the first shell or the second shell, the second buckle unit is clamped between the first buckle unit and the fixing edge, so that the first shell and the second shell are limited in the horizontal direction, and then the first shell and the second shell are limited in the vertical direction through mutual buckling of the first buckle unit and the second buckle unit. Therefore, reliable connection between the first shell and the second shell can be ensured, the structure is simple, and the cost is low.
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Description

Technical Field

[0001] A filter for use in air sterilizers, belonging to the field of filter technology. Background Technology

[0002] Most filters used in air sterilizers on the market consist of an aluminum alloy shell, a metal mesh, and internal filter materials. This results in a long overall material cost and processing cycle. Some pre-filters use a combination of a plastic frame and a mesh screen. While this has a cost advantage, the frames on both sides of the consumable are prone to misalignment during connection, leading to leaks. This results in poor filtration, only filtering out large particles and having no significant effect on small particles. It also makes the sterilization module more susceptible to contamination, reduces its lifespan, or requires frequent maintenance. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a filter for air sterilizers that has good sealing performance, simple structure and low cost.

[0004] The technical solution adopted by this utility model to solve its technical problem is: the filter for air sterilizer includes a first housing, a second housing and filter consumables, the first housing and the second housing are connected, an installation cavity is formed between the first housing and the second housing, and the filter consumables are fixed in the installation cavity;

[0005] The first housing is provided with multiple first snap-fit ​​units, and the second housing is provided with multiple second snap-fit ​​units. The first snap-fit ​​units and the second snap-fit ​​units are snapped together to connect the first housing and the second housing.

[0006] It also includes multiple fixed sides, with the fixed sides disposed on the first housing, the first snap-fit ​​unit disposed between two fixed sides, and the second snap-fit ​​unit clamped between the first snap-fit ​​unit and the fixed sides; or the fixed sides are disposed on the second housing, the second snap-fit ​​unit is disposed between two fixed sides, and the first snap-fit ​​unit is clamped between the fixed sides and the second snap-fit ​​unit.

[0007] Preferably, the first snap-fit ​​unit is a snap-fit ​​groove formed on the outer side of the first housing, and the second snap-fit ​​unit is a snap-fit ​​provided on the inner side of the second housing.

[0008] Preferably, the outer side of the first housing is recessed to form a fixing groove, the snap-fit ​​groove is disposed on the wall of the fixing groove, the side of the second housing is disposed in the fixing groove, and after the buckle is snapped into the snap-fit ​​groove, the outer sides of the first housing and the second housing are flush.

[0009] Preferably, the first housing includes a first frame, and a first airflow channel is provided in the middle of the first frame. The first airflow channel is disposed opposite to one side of the filter consumable. The second housing includes a second frame, and a second airflow channel is provided in the middle of the second frame. The second airflow channel is disposed opposite to the other side of the filter consumable.

[0010] Preferably, a plurality of first baffles are provided on the inner side of the first frame, and a first airflow channel is formed between adjacent first baffles and between the first baffles and the first frame;

[0011] The inner side of the second frame is provided with a number of second baffles, and a second airflow channel is formed between adjacent second baffles and between the second baffles and the second frame.

[0012] The first and second baffles are symmetrically arranged on both sides of the filter material.

[0013] Preferably, a first consumable pressing unit is provided on the side of the first baffle facing the filter consumable, and a second consumable pressing unit is provided on the side of the second baffle facing the filter consumable.

[0014] Preferably, the first consumable pressing unit is a first pressing rib, which is arranged along the length direction of the first stop rib, and the second consumable pressing unit is a second pressing rib, which is arranged along the length direction of the second stop rib.

[0015] Preferably, the second housing has mounting slots on two opposite sides away from the first housing, or on two opposite sides at the connection between the second housing and the first housing, wherein the width of the mounting slots on the side of the second housing is smaller than the width of the side of the first housing.

[0016] Preferably, the second housing includes a second frame with a second airflow channel in the middle. The second frame has a right-angled edge, and the side of the filter consumable is fixed inside the right-angled edge. The side of the filter consumable is spaced apart from the fixed edge. The right-angled edge forms a slot, and the filter consumable is positioned and fixed by the right-angled edge, preventing the filter consumable from contacting the snap-fit ​​unit or the fixed edge, and avoiding damage to the filter consumable during the snap-fit ​​process between the first housing and the second housing.

[0017] Preferably, the first and second housings are made of plastic.

[0018] Compared with existing technologies, the beneficial effects of the above-mentioned technical solution for air sterilizer filters are:

[0019] A fixed edge is provided inside the first or second housing. The second snap-fit ​​unit is clamped between the first snap-fit ​​unit and the fixed edge, or the first snap-fit ​​unit is clamped between the fixed edge and the second snap-fit ​​unit, thereby limiting the first and second housings in the horizontal direction. Then, the first and second snap-fit ​​units interlock with each other to limit the first and second housings in the vertical direction, thereby ensuring a reliable connection between the first and second housings, preventing relative displacement during use, and ensuring reliable sealing. The snap-fit ​​structure connects the first and second housings, which is simple in structure and low in cost. Attached Figure Description

[0020] Figure 1 This is the front view of the filter used in the air sterilizer.

[0021] Figure 2 This is a side view of the filter used in the air sterilizer.

[0022] Figure 3 This is a cross-sectional view of the filter used in the air sterilizer.

[0023] Figure 4 for Figure 3 Enlarged view of section B in the middle.

[0024] Figure 5 This is the front view of the first housing.

[0025] Figure 6 This is a cross-sectional view of the first shell.

[0026] Figure 7 This is the front view of the second housing.

[0027] Figure 8 This is a side view of the second housing.

[0028] Figure 9 This is a cross-sectional view of the second housing.

[0029] The components are: 1. First housing; 2. Second housing; 3. Filter material; 4. Fixing edge; 5. Snap-fit ​​groove; 6. Buckle; 7. Fixing groove; 8. First frame; 9. Second frame; 10. First airflow channel; 11. Second airflow channel; 12. First baffle; 13. Second baffle; 14. First pressure rib; 15. Second pressure rib; 16. Mounting slot. Detailed Implementation

[0030] Figures 1-9 This is the best embodiment of the filter used in the air sterilizer, as described below in conjunction with the attached document. Figures 1-9 The present invention will be further described below.

[0031] Example 1:

[0032] Reference Figures 1-3 The filter for the air sterilizer includes a first housing 1, a second housing 2, and a filter consumable 3. The first housing 1 is connected to the second housing 2, and an installation cavity is formed between the first housing 1 and the second housing 2. The filter consumable 3 is fixed in the installation cavity.

[0033] The first housing 1 is provided with a plurality of first snap-fit ​​units, and the second housing 2 is provided with a plurality of second snap-fit ​​units. The first snap-fit ​​units and the second snap-fit ​​units are snapped together to connect the first housing 1 and the second housing 2.

[0034] It also includes multiple fixed edges 4. In this embodiment, the fixed edges 4 are disposed on the first housing 1, the first buckling unit is disposed between two fixed edges 4, and the second buckling unit is clamped between the first buckling unit and the fixed edges 4.

[0035] Specifically, refer to Figures 4-9 In this embodiment, the first snap-fit ​​unit is a snap-fit ​​6 provided on the outer side of the first housing 1, and the second snap-fit ​​unit is a snap-fit ​​groove 5 provided on the inner side of the second housing 2. The snap-fit ​​6 is snapped into the snap-fit ​​groove 5 to connect the first housing 1 and the second housing 2. Both the first housing 1 and the second housing 2 are cubes with the same side length.

[0036] The outer four sides of the first housing 1 are recessed inward to form fixing grooves 7. Multiple buckles 6 are disposed on the walls of the fixing grooves 7. The inner side of the second housing 2 is provided with a second frame 9, which is located on the side closer to the first housing 1. The side length of the second frame 9 is less than the side length of the second housing 2. The second frame 9 is provided with snap-fit ​​grooves 5. When the buckles 6 are snapped into the snap-fit ​​grooves 5, the second frame 9 is disposed in the fixing grooves 7, and the lower side of the second frame 9 is in contact with the fixing edge 4. The sides of the first housing 1 and the second housing 2 are flush. In this embodiment, four buckles 6 are provided on each side, and correspondingly, four snap-fit ​​grooves 5 are also provided on each side of the second housing 2.

[0037] The buckle 6 is engaged in the engagement groove 5, which limits the vertical position of the first housing 1 and the second housing 2. The fixing edges 4 on both sides of the buckle 6 clamp the engagement groove 5, thereby limiting the horizontal position of the first housing 1 and the second housing 2, thus ensuring a reliable connection between the first housing 1 and the second housing 2. The filter consumable 3 is placed in the mounting cavity between the two housings.

[0038] On the inner side of the first housing 1, below the fixed edge 4, a first frame 8 is formed by protruding inward along the circumference. The inner side of the first frame 8 is provided with a plurality of first baffles 12 that protrude inward to form a rectangle. There are 3 horizontal first baffles 12 and 5 vertical first baffles 12. The first baffles 12 connect the two opposite first frame edges 8. Rectangular airflow channels, which are first airflow channels 10, are provided between adjacent first baffles 12 and between the first baffles 12 and the first frame 8. The first airflow channels 10 are provided in 4 rows, with 4 channels in each row, and are arranged opposite to one side of the filter consumable 3.

[0039] Multiple rectangular airflow channels are also provided in the middle of the second frame 9 of the second housing 2, which are called second airflow channels 11. The second airflow channels 11 are the same size, position and number as the first airflow channels 10, and are also set opposite to the other side of the filter consumables 3.

[0040] Both the first frame 8 and the second frame 9 have a right-angled edge, and the side of the filter consumable 3 is fixed inside the right-angled edge. A first consumable clamping unit is provided on the side of the first baffle 12 facing the filter consumable 3, and a second consumable clamping unit is provided on the side of the second baffle 13 facing the filter consumable 3. In this embodiment, the first consumable clamping unit is a first clamping rib 14, which is arranged along the length of the first baffle 13. The second consumable clamping unit is a second clamping rib 15, which is arranged along the length of the second baffle 13. The filter consumable 3 is fixed in the mounting cavity formed by the two frames and is clamped by the first clamping rib 14 and the second clamping rib 15.

[0041] The first housing 1 has two opposite sides away from the second housing 2 with mounting slots 16. The width of the mounting slots 16 is smaller than the width of the first housing 1. The mounting slots 16 enable the filter to be installed, fixed and removed in the housing, which is convenient to operate.

[0042] In this embodiment, the first housing 1 and the second housing 2 are made of plastic. The filter consumable 3 can be made of various materials, including but not limited to polyurethane sponge, filter cotton, and mesh activated carbon of various specifications. Depending on the filling material, filters for various purposes can be developed, such as filters that remove large particulate dust, small particulate dust, and other pollutants, or composite filters that remove gaseous, solid, and liquid pollutants at the same time.

[0043] Work process:

[0044] The filter material 3 is placed inside the first frame 8 of the first housing 1, with the side of the filter material 3 fixed inside the right-angle side of the first frame 8. The first housing 1 and the second housing 2 are joined together, and the buckle 6 is snapped into the snap-fit ​​groove 5. The fixing edges 4 on both sides of the buckle 6 clamp the snap-fit ​​groove 5. The first pressure rib 14 and the second pressure rib 15 press the filter material 3 tightly. The second frame 9 is set in the fixing groove 7, with the lower side of the second frame 9 fitting against the fixing edge 4. The sides of the first housing 1 and the second housing 2 are flush. Then, the filter is installed on the outer shell of the air sterilizer through the mounting slot 16 for air sterilization. After a period of use, when the filter material 3 needs to be replaced, the filter is removed from the outer shell, and the first housing 1 and the second housing 2 are opened to replace the filter material 3.

[0045] Example 2:

[0046] The difference between this embodiment and embodiment one is that: the fixed edge 4 is disposed on the second housing 2, the second buckling unit is disposed between the two fixed edges 4, and the first buckling unit is clamped between the fixed edge 4 and the second buckling unit.

[0047] Example 3:

[0048] The difference between this embodiment and embodiment one is that: there are mounting slots 16 on two opposite sides at the connection between the first housing 1 and the second housing 2, and the side dimension of the first housing 1 is smaller than the side dimension of the second housing 2, so that the mounting slots 16 are directly formed.

[0049] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A filter for an air sterilizer, characterized in that: It includes a first housing (1), a second housing (2) and a filter consumable (3). The first housing (1) is connected to the second housing (2), and an installation cavity is formed between the first housing (1) and the second housing (2). The filter consumable (3) is fixed in the installation cavity. The first housing (1) is provided with a plurality of first snap-fit ​​units, and the second housing (2) is provided with a plurality of second snap-fit ​​units. The first snap-fit ​​units and the second snap-fit ​​units are fastened to each other to connect the first housing (1) and the second housing (2). It also includes multiple fixed edges (4), the fixed edges (4) are disposed on the first housing (1), the first snap-fit ​​unit is disposed between the two fixed edges (4), and the second snap-fit ​​unit is clamped between the first snap-fit ​​unit and the fixed edge (4); or the fixed edge (4) is disposed on the second housing (2), the second snap-fit ​​unit is disposed between the two fixed edges (4), and the first snap-fit ​​unit is clamped between the fixed edge (4) and the second snap-fit ​​unit.

2. The filter for an air sterilizer according to claim 1, characterized in that: The first snap-fit ​​unit is a snap-fit ​​(6) provided on the outer side of the first housing (1), and the second snap-fit ​​unit is a snap-fit ​​groove (5) provided on the inner side of the second housing (2).

3. The filter for an air sterilizer according to claim 2, characterized in that: The outer side of the first housing (1) is recessed to form a fixing groove (7), and the buckle (6) is set on the wall of the fixing groove (7). The side of the second housing (2) is set in the fixing groove (7). After the buckle (6) is inserted into the snap-fit ​​groove (5), the outer sides of the first housing (1) and the second housing (2) are flush.

4. The filter for an air sterilizer according to claim 1, characterized in that: The first housing (1) includes a first frame (8), and a first airflow channel (10) is provided in the middle of the first frame (8). The first airflow channel (10) is disposed opposite to one side of the filter consumable (3). The second housing (2) includes a second frame (9), and a second airflow channel (11) is provided in the middle of the second frame (9). The second airflow channel (11) is disposed opposite to the other side of the filter consumable (3).

5. The filter for an air sterilizer according to claim 4, characterized in that: The inner side of the first frame (8) is provided with a plurality of first baffles (12), and a first airflow channel (10) is formed between adjacent first baffles (12) and between the first baffles (12) and the first frame (8). The inner side of the second frame (9) is provided with a number of second baffles (13), and a second airflow channel (11) is formed between adjacent second baffles (13) and between the second baffles (13) and the second frame (9). The first baffle (12) and the second baffle (13) are symmetrically arranged on both sides of the filter consumable (3).

6. The filter for an air sterilizer according to claim 5, characterized in that: The first baffle (12) is provided with a first consumable pressing unit on the side facing the filter consumable (3), and the second baffle (13) is provided with a second consumable pressing unit on the side facing the filter consumable (3).

7. The filter for an air sterilizer according to claim 6, characterized in that: The first consumable pressing unit is the first pressing rib (14), which is arranged along the length direction of the first stop rib (12). The second consumable pressing unit is the second pressing rib (15), which is arranged along the length direction of the second stop rib (13).

8. The filter for an air sterilizer according to claim 1, characterized in that: The first housing (1) has mounting slots (16) on two opposite sides away from the second housing (2), or mounting slots (16) are provided on two opposite sides at the connection between the first housing (1) and the second housing (2), wherein the width of the mounting slots (16) on the side of the second housing (2) is less than the width of the side of the first housing (1).

9. The filter for an air sterilizer according to claim 8, characterized in that: The second housing (2) includes a second frame (9), and a second airflow channel (11) is provided in the middle of the second frame (9). The second frame (9) has a right-angled side, and the side of the filter consumable (3) is fixed inside the right-angled side. The side of the filter consumable (3) is spaced apart from the fixed side (4).

10. The filter for an air sterilizer according to claim 1, characterized in that: The first housing (1) and the second housing (2) are made of plastic.