A non-woven fabric structure for automobile air filter

Abstract

The utility model discloses a non-woven fabric structure for an automobile air filter, comprising a filter element, wherein a cover frame and a bottom frame are arranged on the outer side of the filter element, the cover frame is installed on the upper end of the bottom frame, larger particles are filtered and blocked by an outer non-woven fabric layer made of polyester needle-punched non-woven fabric material, small particles are filtered and blocked by a first filter layer made of glass fiber filter cotton material, moisture in the air is filtered by a drying layer made of crushed desiccant particles, and the dehumidification effect is effectively improved, and the anti-mildew layer made of anti-mildew agent particles sterilizes and purifies moldy substances in the air, and further fine filtration is performed by a second filter layer made of glass fiber filter cotton material, and then the air is deodorized and purified by a purification layer made of activated carbon particles, and the fine particles in the air are further filtered by an inner non-woven fabric layer made of polypropylene melt-blown non-woven fabric, which effectively improves the filtering effect of the non-woven fabric filter element.

Description

Technical Field

[0001] The utility model relates to the technical field of non-woven fabrics, in particular to a non-woven fabric structure used for an automobile air filter. Background Art

[0002] An air filter is a device that captures dust from a gas-solid two-phase flow and purifies the gas through the action of a porous filter material. Non-woven fabrics, also known as non-woven fabrics, are composed of directional or random fibers. They are a new generation of environmentally friendly materials that are moisture-proof, breathable, flexible, lightweight, non-combustible, easy to decompose, non-toxic and non-irritating, colorful, low-priced, and recyclable. For example, they mostly use polypropylene (pp material) pellets as raw materials and are produced in a continuous one-step process of high-temperature melting, spinning, laying, and hot pressing and winding. They are widely used in the field of air filtration.

[0003] As described in the published patent CN218742506U, when a car is driving with the air conditioner turned on, it inhales outside air into the car compartment, but the air contains many different particles, such as dust, pollen, soot, abrasive particles, ozone, odor, nitrogen oxides, sulfur dioxide, carbon dioxide, benzene, etc.

[0004] However, the existing automobile air-conditioning filter element has a relatively simple structure, mainly composed of a single layer of filter cloth. During the filtering process, fine dust can easily pass through the filter cloth and enter the air-conditioning refrigeration system, affecting the environment inside the car.

[0005] Therefore, it is necessary to design and modify the automobile air-conditioning filter to effectively prevent the phenomenon of loss of filtering effect.

[0006] In summary, in the prior art, the automobile air conditioning filter element has the problem of a single filtering structure resulting in a lack of filtering effect. Utility Model Content

[0007] In order to overcome the above-mentioned shortcomings, the utility model aims to provide a technical solution of a non-woven fabric structure for an automobile air filter that can solve the above-mentioned problems.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A non-woven fabric structure for an automobile air filter comprises a filter element, a cover frame and a bottom frame are arranged on the outside of the filter element, and the cover frame is installed on the upper end of the bottom frame;

[0010] The filter element comprises an outer non-woven fabric layer, a drying layer, an anti-mildew layer, a purification layer and an inner non-woven fabric layer, wherein the drying layer is arranged on one side of the outer non-woven fabric layer, the anti-mildew layer is arranged on one side of the drying layer, the purification layer is arranged on one side of the anti-mildew layer, and the inner non-woven fabric layer is hot-pressed and bonded to one side of the purification layer.

[0011] As a further solution of the utility model: a side sleeve is bonded to the outer side of the filter element, and an extension strip is integrally designed on the outer side of the side sleeve, and the side sleeve and the extension strip are both made of non-woven fabric material.

[0012] As a further solution of the utility model: a groove is provided at the upper end of the bottom frame, the extension strip is located at the upper end of the groove, the lower end of the cover frame is integrally designed with a convex strip corresponding to the position of the groove, a sealing strip is bonded to the lower end of the convex strip, and the bottom frame and the cover frame are both made of plastic material.

[0013] As a further solution of the utility model: a first filter layer is commonly provided on one side corresponding to the outer non-woven fabric layer and the drying layer, and the outer non-woven fabric layer, the first filter layer and the drying layer are connected by hot pressing.

[0014] As a further solution of the utility model: a second filter layer is commonly provided on one side corresponding to the mildew-proof layer and the purification layer, and the mildew-proof layer, the second filter layer and the purification layer are connected by hot pressing.

[0015] As a further solution of the utility model: the outer non-woven fabric layer is made of polyester needle-punched non-woven fabric material, the inner non-woven fabric layer is made of polypropylene melt-blown non-woven fabric, and the first filter layer and the second filter layer are both made of glass fiber filter cotton material.

[0016] As a further solution of the utility model: the drying layer is made of crushed desiccant particles, the anti-mildew layer is made of anti-mildew agent particles, and the purification layer is made of activated carbon particles.

[0017] As a further solution of the utility model: snap-on mounting grooves are respectively provided at the corners around the cover frame, the snap-on mounting grooves include a first snap-on groove and a second snap-on groove arranged crosswise, U-shaped locks are respectively provided in the first snap-on groove and the second snap-on groove, the U-shaped locks include a U-shaped frame, and a paper buckle is formed at the open end of the U-shaped frame.

[0018] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0019] 1. The outer non-woven fabric layer made of polyester needle-punched non-woven fabric material filters and blocks larger particles, and then the first filter layer made of glass fiber filter cotton material filters and blocks small particles. Then the drying layer made of desiccant crushed particles filters the moisture in the air, which effectively improves the dehumidification effect, and the anti-mildew layer made of anti-mildew agent particles sterilizes and purifies the moldy substances in the air, and then the second filter layer made of glass fiber filter cotton material is further finely filtered, and then the purification layer made of activated carbon particles is used to deodorize and purify the air, and then the inner non-woven fabric layer made of polypropylene melt-blown non-woven fabric is used to further filter the fine particles in the air, which effectively improves the filtering effect of this non-woven filter element;

[0020] 2. The convex strip at the lower end of the cover frame and the sealing strip are pressed downward, and then the sealing strip presses the extension strip into the inner cavity of the groove, so as to effectively seal and clamp the extension strip, and conveniently install and replace it, and further facilitate the disassembly and replacement of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the overall split structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the side sleeve and the extension strip in the utility model;

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of the cover frame in the utility model;

[0025] Figure 5 It is a three-dimensional structural schematic diagram of the filter element in the utility model;

[0026] Figure 6 This is a front view structural diagram of the filter element in the utility model;

[0027] Figure 7 for Figure 6 A schematic diagram of the enlarged structure at A in the middle;

[0028] Figure 8 This is a structural stereogram of the U-shaped lock in the utility model;

[0029] The reference numerals and names in the figures are as follows:

[0030] Filter element 1, outer non-woven fabric layer 11, first filter layer 12, drying layer 13, mildew-proof layer 14, second filter layer 15, purification layer 16, inner non-woven fabric layer 17, cover frame 2, bottom frame 3, side sleeve 4, extension strip 5, groove 6, convex strip 7, sealing strip 8, buckle installation groove 01, first buckle groove 02, second buckle groove 03, U-shaped lock buckle 9, U-shaped frame 91, and reciprocal buckle 92. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1-7A non-woven fabric based air filter includes a filter element 1, a cover frame 2 and a bottom frame 3 are arranged on the outside of the filter element 1, the cover frame 2 is installed on the upper end of the bottom frame 3, a side cover 4 is bonded to the outside of the filter element 1, and an extension strip 5 is integrated on the outside of the side cover 4. The side cover 4 and the extension strip 5 are both made of non-woven fabric material.

[0033] The side cover 4 made of non-woven fabric is used to seal and bond the corrugated filter element 1 around to prevent the air from being directly discharged from the sides of the filter element 1 when the filter element 1 filters the air, thereby reducing the air filtering effect. The designed extension strip 5 is placed between the cover frame 2 and the bottom frame 3, so that the extension strip 5, the side cover 4 and the filter element 1 are effectively installed for easy use.

[0034] A groove 6 is provided at the upper end of the bottom frame 3, and the extension strip 5 is located at the upper end of the groove 6. The lower end of the cover frame 2 is integrally designed with a convex strip 7 corresponding to the position of the groove 6, and a sealing strip 8 is bonded to the lower end of the convex strip 7. The bottom frame 3 and the cover frame 2 are both made of plastic materials.

[0035] By pressing down the convex strip 7 and the sealing strip 8 at the lower end of the cover frame 2, the sealing strip 8 presses the extension strip 5 into the inner cavity of the groove 6, which is convenient for effectively sealing the extension strip 5 and installing and replacing it, and further facilitates the disassembly and replacement of the filter element 1.

[0036] The filter element 1 includes an outer non-woven fabric layer 11, a drying layer 13, an anti-mildew layer 14, a purification layer 16 and an inner non-woven fabric layer 17. The drying layer 13 is arranged on one side of the outer non-woven fabric layer 11, the anti-mildew layer 14 is arranged on one side of the drying layer 13, the purification layer 16 is arranged on one side of the anti-mildew layer 14, the inner non-woven fabric layer 17 is hot-pressed and bonded to one side of the purification layer 16, the first filter layer 12 is commonly arranged on the side corresponding to the outer non-woven fabric layer 11 and the drying layer 13, the outer non-woven fabric layer 11, the first filter layer 12 and the drying layer 13 are connected by hot pressing, the second filter layer 15 is commonly arranged on the side corresponding to the anti-mildew layer 14 and the purification layer 16, and the anti-mildew layer 14, the second filter layer 15 and the purification layer 16 are connected by hot pressing.

[0037] By designing the outer non-woven fabric layer 11, the first filter layer 12, the drying layer 13, the mildew-proof layer 14, the second filter layer 15, the purification layer 16 and the inner non-woven fabric layer 17, it is convenient to perform multiple filtrations on the air, and it is convenient to dry the air, sterilize and remove mildew, and purify and deodorize the air, which effectively improves the filtering effect of the non-woven fabric filter element 1 and facilitates improving its use effect.

[0038] The outer non-woven fabric layer 11 is made of polyester needle-punched non-woven fabric material, the inner non-woven fabric layer 17 is made of polypropylene melt-blown non-woven fabric, the first filter layer 12 and the second filter layer 15 are both made of glass fiber filter cotton material, the drying layer 13 is made of desiccant crushed particles, the mildew-proof layer 14 is made of mildew-proof agent particles, and the purification layer 16 is made of activated carbon particles.

[0039] The outer non-woven fabric layer 11 made of polyester needle-punched non-woven fabric material is used to filter and block larger particles, and then the first filter layer 12 made of glass fiber filter cotton material is used to filter small particles, and then the moisture in the air is filtered through the drying layer 13 made of desiccant crushed particles, which effectively improves the dehumidification effect, and then the mildew-proof layer made of mildew-proof agent particles is used to sterilize and purify moldy substances in the air, and then the second filter layer 15 made of glass fiber filter cotton material is used for further fine filtration, and then the purification layer 16 made of activated carbon particles is used to deodorize and purify the air, and then the inner non-woven fabric layer 17 made of polypropylene melt-blown non-woven fabric is used to further filter the fine particles in the air, which effectively improves the filtering effect of this non-woven filter element 1.

[0040] The corners of the cover frame are respectively provided with buckle installation grooves 01, and the buckle installation grooves 01 include a first buckle groove 02 and a second buckle groove 03 arranged crosswise. Figure 8 As shown, the angle between the first buckle groove 02 and the second buckle groove 03 changes with the corner of the cover frame 2. The first buckle groove 02 is perpendicular to one side of the corner of the cover frame 2, and the second buckle groove 03 is perpendicular to the other side of the corner of the cover frame 2. Through the cross-matching of the first buckle groove 02 and the second buckle groove 03, the locking effect of the U-shaped lock 9 is better, and the connection between the cover frame 2 and the bottom frame 3 is tighter.

[0041] By snapping at least two U-shaped lock buckles 9 into engagement with the first snap groove 02 and the second snap groove 03 respectively, the cover frame 2 and the bottom frame 3 can be quickly and stably connected and clamped during the assembly process. When disassembly is required, the user only needs to use his hands or auxiliary tools to remove the U-shaped lock buckle 9 from the first snap groove 02 and the second snap groove 03 to separate the cover frame 2 and the bottom frame 3, making assembly and disassembly simpler and more efficient. A paper buckle 92 is provided at the open end of the U-shaped skeleton 91. After the U-shaped lock buckle 9 is snapped into position in the first snap groove 02 and the second snap groove 03 respectively, the paper buckle 92 abuts against the inner wall of the cover frame 2, which can play a partial stopping and limiting effect, thereby avoiding accidental falling off of the U-shaped lock buckle 9 and improving the overall stability of the use of the utility model.

[0042] Working principle: When the utility model is in use, the designed extension strip 5 is placed between the cover frame 2 and the bottom frame 3, and the convex strip 7 and the sealing strip 8 at the lower end of the cover frame 2 are pressed down, so that the sealing strip 8 presses the extension strip 5 into the inner cavity of the groove 6, which is convenient for effectively sealing the extension strip 5 and convenient for its installation and replacement, and further convenient for disassembly and replacement of the filter element 1, and the side sleeve 4 is used to seal and bond the surroundings of the wavy filter element 1 to avoid that the air is directly discharged from the surroundings of the filter element 1 when the filter element 1 filters the air, thereby reducing its air filtering effect, and this non-woven filter element 1 is made of polyester needle-punched non-woven fabric material. The outer non-woven fabric layer 11 passes larger particles through the filter element 1. Filter and block, and then pass through the first filter layer 12 made of glass fiber filter cotton material to filter and block small particles, and then the drying layer 13 made of desiccant crushed particles filters the moisture in the air, which effectively improves the dehumidification effect, and the anti-mildew layer made of anti-mildew agent particles sterilizes and purifies the moldy substances in the air, and then pass through the second filter layer 15 made of glass fiber filter cotton material for further fine filtration, and then pass through the purification layer 16 made of activated carbon particles to deodorize and purify the air, and then pass through the inner non-woven fabric layer 17 made of polypropylene melt-blown non-woven fabric to further filter the fine particles in the air, effectively improving the filtering effect of this non-woven fabric filter element 1.

[0043] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A nonwoven fabric structure for an automobile air filter, comprising a filter element (1), characterized in that: A cover frame (2) and a bottom frame (3) are provided on the outside of the filter element (1), and the cover frame (2) is mounted on the upper end of the bottom frame (3); The filter element (1) comprises an outer non-woven fabric layer (11), a drying layer (13), an anti-mildew layer (14), a purification layer (16) and an inner non-woven fabric layer (17); the drying layer (13) is arranged on one side of the outer non-woven fabric layer (11); the anti-mildew layer (14) is arranged on one side of the drying layer (13); the purification layer (16) is arranged on one side of the anti-mildew layer (14); and the inner non-woven fabric layer (17) is bonded to one side of the purification layer (16) by heat-pressing.

2. The nonwoven fabric structure for automobile air filter according to claim 1, characterized in that: The outer side of the filter element (1) is bonded with a side sleeve (4), and the outer side of the side sleeve (4) is integrally designed with an extension strip (5), and the side sleeve (4) and the extension strip (5) are both made of non-woven fabric material.

3. The nonwoven fabric structure for automobile air filter according to claim 2, characterized in that: The upper end of the bottom frame (3) is provided with a groove (6), the extension strip (5) is located at the upper end of the groove (6), the lower end of the cover frame (2) is integrally designed with a convex strip (7) corresponding to the position of the groove (6), and the lower end of the convex strip (7) is bonded with a sealing strip (8), and the bottom frame (3) and the cover frame (2) are both made of plastic material.

4. The non-woven fabric structure for automobile air filter according to claim 3, characterized in that: A first filter layer (12) is provided on one side of the outer non-woven fabric layer (11) and the drying layer (13) corresponding to each other, and the outer non-woven fabric layer (11), the first filter layer (12) and the drying layer (13) are connected by heat pressing.

5. The non-woven fabric structure for automobile air filter according to claim 4, characterized in that: A second filter layer (15) is provided on the side corresponding to the mildew-proof layer (14) and the purification layer (16), and the mildew-proof layer (14), the second filter layer (15) and the purification layer (16) are connected by heat pressing.

6. The nonwoven fabric structure for automobile air filter according to claim 5, characterized in that: The outer non-woven fabric layer (11) is made of polyester needle-punched non-woven fabric material, the inner non-woven fabric layer (17) is made of polypropylene melt-blown non-woven fabric, and the first filter layer (12) and the second filter layer (15) are both made of glass fiber filter cotton material.

7. The nonwoven fabric structure for automobile air filter according to claim 6, characterized in that: The drying layer (13) is made of crushed desiccant particles, the anti-mildew layer (14) is made of anti-mildew agent particles, and the purification layer (16) is made of activated carbon particles.

8. The nonwoven fabric structure for automobile air filter according to claim 7, characterized in that: Buckle mounting grooves (01) are respectively provided at the corners of the four sides of the cover frame (2), the buckle mounting grooves (01) comprising a first buckle groove (02) and a second buckle groove (03) arranged crosswise, a U-shaped lock buckle (9) is respectively provided in the first buckle groove (02) and the second buckle groove (03), the U-shaped lock buckle comprises a U-shaped frame (91), and a reciprocating buckle (92) is formed at the open end of the U-shaped frame (91).

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