Air conditioner filter element

Abstract

The utility model relates to the technical field of air conditioners, in particular to an air conditioner filter element which comprises a filter element layer arranged in an air filter outer frame body, the filter element layer is of a folding structure, and the filter element layer sequentially comprises a protective layer, an activated carbon layer, an electrostatic layer, a melt-blowing layer and a supporting layer from inside to outside. According to the air conditioner filter element, a novel filter element layer structure is designed, and a filter element layer sequentially comprises a protective layer, an activated carbon layer, an electrostatic layer, a melt-blown layer and a supporting layer from inside to outside; the melt-blown layer is made of melt-blown cloth, and the melt-blown cloth is composed of fibers with the fiber diameter being 0.25 micrometer. Air outside a vehicle enters from the supporting layer, clustered water molecules in the air are isolated outside through the waterproof and breathable melt-blown layer, it is guaranteed that the air entering the vehicle is not humid, and then the air entering the vehicle is fresh, clean and dry through the electrostatic layer and the activated carbon layer.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, and particularly relates to an air conditioner filter element. Background Art

[0002] An air conditioner filter element is a filter element installed at the position of an automobile air conditioner. It is installed at the air inlet of the air conditioner. By filtering the air entering the interior of the air conditioner and intercepting dust, the air blown out by the air conditioner becomes relatively clean, thereby improving the air quality inside the automobile.

[0003] On the market, existing air filter elements are all multi-layer filter screen structures, that is, multiple layers of non-woven fabric filter screens are respectively adhered to both sides of an activated carbon layer. The waterproof performance of the air filter element is insufficient, and it cannot block agglomerated water molecules from entering the vehicle. Under rainy and cloudy conditions, humid air enters the vehicle, resulting in a damp and uncomfortable interior. The waterproof function of existing air filters needs to be improved.

[0004] Therefore, the applicant provides an air conditioner filter element to solve the problems raised in the above background art. Content of the Utility Model

[0005] The purpose of the utility model is to provide an air conditioner filter element to solve problems such as the need to improve the waterproof function of existing air filter elements.

[0006] To solve the above technical problems, the utility model provides an air conditioner filter element, which includes a filter element layer arranged inside an air filter outer frame body. The filter element layer is a folding structure, and from the inside to the outside, the filter element layer is successively a protective layer, an activated carbon layer, an electrostatic layer, a meltblown layer, and a support layer.

[0007] Further, the protective layer and the activated carbon layer are adhered together with glue.

[0008] Further, the electrostatic layer, the meltblown layer, and the support layer are combined together through an ultrasonic instrument pressing process.

[0009] Further, the protective layer is made of hard non-woven fabric material and is used to fix the activated carbon layer.

[0010] Further, the activated carbon layer is filled with granular activated carbon, and the diameter of the activated carbon is 1 - 5 millimeters.

[0011] Further, the electrostatic layer is made of electrostatic cotton material and is used to filter impurities in the air.

[0012] Further, the meltblown layer is made of meltblown cloth material, and the meltblown cloth is composed of fibers with a fiber diameter of 0.25 micrometers.

[0013] Further, the support layer is made of nylon mesh material, and the diameter of the mesh holes is 1 - 6 millimeters.

[0014] Further, the thickness of the filter element layer is 4-10 mm, the distance between two adjacent folds in the filter element layer body is 6-10 mm, and the height of the fold is 20-50 mm.

[0015] Further, a gap of 1-2 mm is provided between the electrostatic layer and the meltblown layer.

[0016] Adopting the above technical solution, the utility model has the following beneficial effects:

[0017] 1. An air conditioner filter element provided by the utility model designs a new filter element layer structure. The filter element layer is successively composed of a protective layer, an activated carbon layer, an electrostatic layer, a meltblown layer and a support layer from inside to outside. The meltblown layer is made of meltblown cloth, and the meltblown cloth is composed of fibers with a fiber diameter of 0.25 microns. The outside air enters from the support layer, passes through the waterproof and breathable meltblown layer, isolates the agglomerated water molecules in the air, ensures that the air entering the vehicle is not humid, and then passes through the electrostatic layer and the activated carbon layer, so that the air entering the vehicle is fresh, clean and dry. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the air conditioner filter element;

[0020] Figure 2 is Figure 1 a schematic diagram of the structure of the filter element layer in

[0021] Figure 3 It is a schematic diagram of the structure of the filter element layer in the second embodiment.

[0022] Reference numerals: 1. Outer frame of air filter; 2. Filter element layer; 201. Protective layer; 202. Activated carbon layer; 203. Electrostatic layer; 204. Meltblown layer; 205. Support layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions of the utility model in conjunction with the drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments in the utility model belong to the scope of protection of the utility model.

[0024] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. 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.

[0026] The following further explains and illustrates the present utility model in conjunction with specific embodiments.

[0027] Embodiment 1

[0028] As Figure 1-2 shown, an air-conditioning filter element provided in Embodiment 1 includes a filter element layer 2 disposed inside an air filter outer frame 1. The filter element layer 2 is a folding structure, and the filter element layer 2 includes a protective layer 201, an activated carbon layer 202, an electrostatic layer 203, a meltblown layer 204, and a support layer 205 in sequence from inside to outside. The meltblown layer 204 is made of meltblown cloth, and the meltblown cloth is composed of fibers with a fiber diameter of 0.25 microns. These ultrafine fibers have a unique capillary structure, which can increase the number and surface area of fibers per unit area. Thus, the meltblown cloth has good air filtration performance. The pores between the meltblown cloth fibers are narrow, and the clustered liquid water molecules cannot pass through, while the discrete water vapor molecules can pass through, having good waterproof and breathable properties. Under the combined action of the meltblown layer, the electrostatic layer, and the activated carbon layer, it is ensured that the air entering the vehicle is fresh, clean, and dry. The air outside the vehicle passes through the support layer, the meltblown layer, the electrostatic layer, the activated carbon layer, and the protective layer in sequence, and enters the vehicle after filtering out harmful substances and odors layer by layer.

[0029] In this embodiment, the protective layer 201 and the activated carbon layer 202 are bonded together with glue. The electrostatic layer 203, the meltblown layer 204 and the support layer 205 are combined together through an ultrasonic pressing process. The protective layer 201 is made of rigid non-woven fabric, which is used to fix the activated carbon layer 202 and assist the activated carbon in filtering the outside air at the same time. The activated carbon layer 202 is filled with granular activated carbon, and the diameter of the activated carbon is 1-5 mm. The small-particle activated carbon has a larger surface area and can fully adsorb harmful substances and odors in the air, thereby improving the air quality in the vehicle and ensuring human health. The electrostatic layer 203 is made of electrostatic cotton. The electrostatic cotton can filter particulate matter with a diameter of more than 0.1 micron through electrostatic adsorption, and has a filtering effect on the tiny particles in the air. The meltblown layer 204 is made of meltblown cloth, which can effectively capture and intercept tiny particulate matters in the air, such as dust, pollen, bacteria, liquid water molecules, etc., so as to ensure the cleanliness of the air; the meltblown cloth is mainly made of polypropylene, and the polypropylene material has good acid and alkali resistance and solvent resistance, can remain stable in various organic solvents and oil-water mixtures, does not corrode or mildew, and can also withstand high temperatures. These characteristics enable the meltblown cloth to maintain a good filtering effect in harsh environments. The support layer 205 is made of nylon mesh, and the diameter of the mesh holes is 1-6 mm. Within this diameter range, while ensuring air permeability, the nylon mesh has a certain hardness and is used to support the structure of the filter element layer.

[0030] In this embodiment, the filter element layer 2 is of a folding structure, and the thickness of the filter element layer 2 is 4-10 mm. The distance between two adjacent folds in the filter element layer 2 body is 6-10 mm, and the height of the fold is 20-50 mm. Within this size range, the filter element layer can fully absorb external air. Through the folding design, the filtering area of the filter element can be significantly increased. This helps to better capture tiny particles such as dust and impurities in the air and improve the filtering efficiency. The folding structure improves the filtering efficiency and service life, and also enhances the sealing performance of the air conditioner filter element.

[0031] Embodiment Two

[0032] The difference between this Embodiment Two and Embodiment One is that, as Figure 3 shown, a gap of 1-2 mm is provided between the electrostatic layer 203 and the meltblown layer 204. Setting a gap between the electrostatic layer and the meltblown layer improves the effect of adsorbing impurities by the electrostatic layer and the meltblown layer, and improves the overall filtering effect of the air conditioner filter element. Other structures, positional relationships, and connection relationships are the same as those in Embodiment One.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An air conditioning filter element, comprising a filter element layer (2) arranged in an air filter outer frame (1) body, the filter element layer (2) being a folding structure, characterized in that: The filter core layers (2) are, from the inside to the outside, a protective layer (201), an activated carbon layer (202), an electrostatic layer (203), a melt-blown layer (204), and a support layer (205).

2. The air conditioning filter element according to claim 1, characterized in that: The protective layer (201) and the activated carbon layer (202) are bonded together by glue.

3. The air conditioning filter element according to claim 1, characterized in that: The electrostatic layer (203), the meltblown layer (204) and the support layer (205) are bonded together by an ultrasonic instrument lamination process.

4. The air conditioning filter element according to claim 2, characterized in that: The protective layer (201) is made of a hard non-woven fabric and is used to fix the activated carbon layer (202).

5. The air conditioning filter element according to claim 4, characterized in that: The activated carbon layer (202) is filled with granular activated carbon, and the diameter of the activated carbon is 1-5 mm.

6. The air conditioning filter element according to claim 3, characterized in that: The electrostatic layer (203) is made of electrostatic cotton and is used to filter impurities in the air.

7. The air conditioning filter element according to claim 3, characterized in that: The meltblown layer (204) is made of meltblown cloth, which is composed of fibers with a fiber diameter of 0.25 microns.

8. The air conditioning filter element according to claim 3, characterized in that: The support layer (205) is made of nylon mesh, and the mesh diameter is 1-6 mm.

9. The air conditioning filter element according to claim 1, characterized in that: The thickness of the filter core layer (2) is 4-10 mm, the distance between two adjacent folds in the body of the filter core layer (2) is 6-10 mm, and the height of the fold is 20-50 mm.

10. The air conditioning filter element according to claim 1, characterized in that: A gap of 1-2 mm is provided between the electrostatic layer (203) and the meltblown layer (204).

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