A compressible filter element

Abstract

This utility model discloses a compressible filter element, comprising a main body, a filter material, an upper soft seal, and a lower soft seal. The filter material is folded into multiple folded pieces, with adjacent folded pieces connected together. The connection point between two adjacent folded pieces on the outer side of the filter material forms two peak-shaped folded pieces. An upper sealing portion is formed by sealing the inner surfaces of the two peak-shaped folded pieces at the upper end of the filter material with a sealant material. A lower sealing portion is formed by sealing the inner surfaces of the two peak-shaped folded pieces at the lower end of the filter material with a sealant material. The upper end of the filter material is connected to the upper soft seal, and the lower end of the filter material is connected to the lower soft seal. This solves the sealing problem when the filter element is installed in an air purification assembly structure. The filter element can be squeezed and flattened to reduce its volume, thereby reducing the volume required for product transportation and lowering transportation costs.

Description

Technical Field

[0001] This utility model relates to a filter element, which is a filter element for air purifiers and belongs to the technical field of air filter elements. Background Technology

[0002] Existing air filter cartridges (filters) generally use cylindrical or rectangular shapes. These filters have rigid components at both ends, resulting in a relatively large size. They cannot be folded or compressed, leading to high packaging and transportation costs. Furthermore, while this structure provides good sealing at both ends when installed in an air purifier, it is structurally complex. Since most products are now sold online, and shipping costs for filters are high, some vendors use a method to save on these costs by leaving the filter cartridges unsealed at both ends. During transportation, the cartridges are flattened and packed into a cardboard box, and the user then assembles them into the plastic parts of the air purifier. However, this method cannot guarantee the filter's sealing performance during operation. Especially after a period of operation, as the filter resistance increases, dirty air can pass through the joint between the filter and the plastic parts, failing to achieve the filter's filtering function. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a compressible filter element, which can solve the sealing problem when the filter element is installed in the air purification assembly structure, and reduce transportation costs during transportation.

[0004] The present invention can adopt the following technical solution:

[0005] A compressible filter element includes a main body, which comprises filter media, an upper flexible seal, and a lower flexible seal. The filter media is folded into multiple pleats, with adjacent pleats connected together. The connection point between two adjacent pleats on the outer side of the filter media forms two peak-shaped pleats. An upper sealing portion is formed by sealing the inner surfaces of the two peak-shaped pleats at the upper end of the filter media with a sealant material. A lower sealing portion is formed by sealing the inner surfaces of the two peak-shaped pleats at the lower end of the filter media with a sealant material. The upper end of the filter media is connected to the upper flexible seal, and the lower end of the filter media is connected to the lower flexible seal. The upper flexible seal is connected to the upper sealing portion, and the lower flexible seal is connected to the lower sealing portion.

[0006] The following improvements can be further implemented to solve the problem of this utility model:

[0007] A further improvement is that the sealant material is a soft material.

[0008] A further improvement is that the sealant material is a rigid material.

[0009] Further improvements include: the upper soft seal is made of silicone or PU material.

[0010] Further improvements include: the lower soft seal is made of silicone or PU material.

[0011] Further improvements include: the filter material is formed into a cylindrical or square cylindrical shape.

[0012] A further improvement is that the filter material is plate-shaped.

[0013] Further improvements are as follows: the upper end of each pleated piece near the inner side of the filter media is the upper inner part of the pleated piece, and the upper end of each pleated piece near the outer side of the filter media is the upper outer part of the pleated piece; the upper soft seal is connected to the upper inner part of the pleated piece, but not to the upper outer part of the pleated piece; the lower end of each pleated piece near the inner side of the filter media is the lower inner part of the pleated piece, and the lower end of each pleated piece near the outer side of the filter media is the lower outer part of the pleated piece; the lower soft seal is connected to the lower inner part of the pleated piece, but not to the lower outer part of the pleated piece.

[0014] Further improvements include: including at least two main bodies, with adjacent main bodies arranged vertically, and the lower soft seal of the upper body being spliced ​​together with the upper soft seal of the lower body.

[0015] The above technical solution has the following technical effects:

[0016] 1. This utility model features upper and lower soft sealing components, solving the sealing problem when the filter element is installed in an air purification assembly structure. Furthermore, because the upper and lower soft sealing components are flexible, the filter element can be squeezed, folded, and flattened during packaging and packing, reducing its volume and thus the volume required for transportation, thereby reducing transportation costs.

[0017] 2. This utility model allows the lower soft seal in the upper main body to be joined with the upper soft seal in the lower main body. This structure allows two or more products of the same height to be joined together at higher dimensions via the soft structures at both ends, facilitating standardized production of filter elements for various product series and promoting large-scale manufacturing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the filter media when it is unfolded.

[0019] Figure 2This is a schematic diagram of the partial structure of the filter media as seen from the end.

[0020] Figure 3 yes Figure 2 A schematic diagram showing the sealant after it has been sealed.

[0021] Figure 4 This is a schematic diagram of the filter material after the upper end is sealed with sealant material in Example 1, as seen from the end.

[0022] Figure 5 This is a schematic diagram of the end of the main body in Embodiment 1.

[0023] Figure 6 This is a schematic diagram of the main body in Example 1.

[0024] Figure 7 This is a schematic diagram of a partial structure near the end of the folded sheet that makes up the mountain peak. Detailed Implementation

[0025] The present invention will now be described in detail with reference to specific embodiments.

[0026] Example 1: As Figures 1 to 7 As shown, a compressible filter element includes a main body 1, which includes filter media 2, an upper soft seal 3, and a lower soft seal 4. The filter media is folded into multiple pleats 5, with adjacent pleats connected together. The connection point between two adjacent pleats on the outer side 9 of the filter media forms two peak-shaped pleats 51. A sealant material 6 is used to seal the inner surfaces of the two peak-shaped pleats at the upper end of the filter media to form an upper sealing portion. A sealant material is also used to seal the inner surfaces of the two peak-shaped pleats at the lower end of the filter media to form a lower sealing portion. The upper end of the filter media 2 is connected to the upper soft seal 3, and the lower end of the filter media is connected to the lower soft seal 4. The upper soft seal 3 is connected to the upper sealing portion, and the lower soft seal 4 is connected to the lower sealing portion.

[0027] The shapes of the upper soft seal 3 and the lower soft seal 4 can be made into various irregular shapes according to the assembly structure of the purifier, so as to facilitate assembly and ensure the sealing performance of the assembly.

[0028] In this example, the filter media is formed into a cylindrical shape. Of course, it can also be formed into a square column or other irregular shapes as needed.

[0029] In this example, the upper soft seal is made of silicone or PU material. Of course, it can also be made of other soft rubber materials.

[0030] In this example, the lower soft seal is made of silicone or PU material. Of course, it can also be made of other soft rubber materials.

[0031] In this example, the sealant material is a soft material. Of course, depending on the design requirements, the sealant material can also be a rigid material that can withstand certain pressure and high and low temperature impacts without cracking.

[0032] Working Principle: In application, this utility model is installed in the assembly structure of an air purifier. The upper soft seal 3 and the lower soft seal 4 can make tight contact with the edges of the assembly structure, preventing gaps between the filter element's edges and the duct wall, thus avoiding air leakage and preventing dirty air from flowing through gaps, ensuring the stable performance of the air purifier. The structure, featuring an upper soft seal, a lower soft seal, an upper sealing part, and a lower sealing part, solves the sealing problem when the filter element is installed in the air purifier assembly structure, preventing air leakage. Furthermore, since the upper and lower soft seals are soft, the filter element can be squeezed and flattened during packaging and packing, reducing its volume and transportation costs.

[0033] Example 2: The characteristic of this example is that the filter material is plate-shaped, not formed into a cylindrical or square column shape or other structures. For plate-shaped products with a relatively large area, they can also be folded to reduce their area and volume, thereby reducing the volume required for transportation and reducing transportation costs. The rest is the same as in Example 1.

[0034] Example 3: In this example, the upper part of each folded piece near the inner side 10 of the filter media is the upper inner part 7 of the folded piece, and the upper part of each folded piece near the outer side 9 of the filter media is the upper outer part 8 of the folded piece. The upper flexible seal is connected to the upper inner part of the folded piece, but not to the upper outer part. This structure allows the outer parts of the two folded pieces that require an expansion angle to expand more freely, facilitating airflow.

[0035] The lower end of each pleated flap, near the inner side of the filter media, is called the lower inner part of the pleated flap, and the lower end of each pleated flap, near the outer side of the filter media, is called the lower outer part of the pleated flap. The lower flexible seal is connected to the lower inner part of the pleated flap, but not to the lower outer part. This structure allows the outer parts of the two pleated flaps that require an expanded angle to unfold and expand more freely, facilitating airflow.

[0036] The rest can be the same as in Example 1 or Example 2 above.

[0037] Example 4: This example features a compressible filter element comprising at least two main bodies arranged vertically between adjacent main bodies. The lower flexible seal of the upper main body is joined to the upper flexible seal of the lower main body. This structure allows for the assembly of two or more products of identical height using flexible structures at both ends to achieve a higher dimension, facilitating standardized production of filter elements across various product series and promoting large-scale manufacturing. The structure of the main body can be the same as in Example 1, Example 2, or Example 3.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A compressible filter cartridge characterized by: The system includes a main body, which comprises filter media, an upper soft seal, and a lower soft seal. The filter media is folded into multiple folds, with adjacent folds connected together. The connection point between two adjacent folds on the outer side of the filter media forms two peak-shaped folds. The inner surfaces of the two peak-shaped folds are sealed at the upper end of the filter media with a sealant material to form an upper sealing part. The inner surfaces of the two peak-shaped folds are also sealed at the lower end of the filter media with a sealant material to form a lower sealing part. The upper end of the filter media is connected to the upper soft seal, and the lower end of the filter media is connected to the lower soft seal. The upper soft seal is connected to the upper sealing part, and the lower soft seal is connected to the lower sealing part.

2. The compressible filter element according to claim 1, characterized in that: The sealant material is a soft material.

3. The compressible filter element according to claim 1, characterized in that: The sealant material is a rigid material.

4. The compressible filter element according to claim 1, characterized in that: The upper soft seal is made of silicone or PU material.

5. The compressible filter element according to claim 1, characterized in that: The lower soft seal is made of silicone or PU material.

6. The compressible filter element according to claim 1, characterized in that: The filter material is formed into a cylindrical or rectangular shape.

7. The compressible filter element according to claim 1, characterized in that: The filter material is plate-shaped.

8. The compressible filter element according to claim 1, characterized in that: The upper part of each pleated piece, near the inner side of the filter media, is the upper inner part of the pleated piece; the upper part of each pleated piece, near the outer side of the filter media, is the upper outer part of the pleated piece. The upper soft seal is connected to the upper inner part of the pleated piece, but not to the upper outer part of the pleated piece. The lower part of each pleated piece, near the inner side of the filter media, is the lower inner part of the pleated piece; the lower part of each pleated piece, near the outer side of the filter media, is the lower outer part of the pleated piece. The lower soft seal is connected to the lower inner part of the pleated piece, but not to the lower outer part of the pleated piece.

9. The compressible filter element according to claim 1, characterized in that: It includes at least two main bodies, which are arranged vertically between adjacent main bodies. The lower soft seal of the main body located in the upper position is spliced ​​together with the upper soft seal of the main body located in the lower position.

Images