阅读说明：本技术 无粘合剂空气过滤器滤芯及生产工艺 (Adhesive-free air filter element and production process thereof ) 是由 乔宏 赵远 石文兵 于 2019-09-24 设计创作，主要内容包括：本发明涉及空气过滤器技术领域,具体涉及无粘合剂空气过滤器滤芯及生产工艺。无粘合剂空气过滤器滤芯,包括相互扣合的两个空气过滤体,两个空气过滤体之间形成过滤腔,过滤腔内设置有过滤层；空气过滤体包括滤面层和与滤面层连接的法兰边,滤面层的一个侧面上连续设置若干罩状隆起结构,且法兰边设置在滤面层的另一侧面上,滤面层的边缘与法兰边压合。滤芯生产工艺包括：通过热压或超声波成型的方式在滤面层上设置罩状隆起结构；将滤面层与法兰边连接；在滤面层的内侧面设置过滤层；将两个过滤体的法兰边热压连接或超声波成型连接。本发明提供的工艺,在生产过程中不采用胶黏剂,制得的过滤体不对外散发VOC等有毒有害气体,提高了空气净化效率。(The invention relates to the technical field of air filters, in particular to an adhesive-free air filter element and a production process thereof. The filter element of the air filter without the adhesive comprises two air filter bodies which are buckled with each other, a filter cavity is formed between the two air filter bodies, and a filter layer is arranged in the filter cavity; the air filter comprises a filter surface layer and a flange edge connected with the filter surface layer, wherein a plurality of cover-shaped raised structures are continuously arranged on one side surface of the filter surface layer, the flange edge is arranged on the other side surface of the filter surface layer, and the edge of the filter surface layer is pressed with the flange edge. The production process of the filter element comprises the following steps: arranging a cover-shaped bulge structure on the filtering surface layer in a hot pressing or ultrasonic forming mode; connecting the filtering surface layer with the flange edge; a filter layer is arranged on the inner side surface of the filter surface layer; and connecting the flange edges of the two filter bodies by hot pressing or ultrasonic molding. According to the process provided by the invention, no adhesive is adopted in the production process, and the prepared filter body does not emit toxic and harmful gases such as VOC (volatile organic compounds) and the like, so that the air purification efficiency is improved.)

1. The filter element of the air filter without the adhesive is characterized in that: the air filter comprises two air filter bodies which are buckled with each other, a filter cavity is formed between the two air filter bodies, and a filter layer (4) is arranged in the filter cavity; the filtration body include filter surface layer (5) and flange limit (3) be connected with filter surface layer (5), a side of filter surface layer (5) on set up a plurality of cover form uplift structures (1) in succession, and the flange limit sets up on the another side of filter surface layer (5), edge (2) and flange limit (3) pressfitting of filter surface layer (5).

2. The adhesive-free air filter cartridge of claim 1, wherein: the filter surface layer (5) is made of a PP material and a PET material in a composite mode.

3. The adhesive-free air filter cartridge of claim 1, wherein: the thickness of the flange edge (3) is 3 mm-100 mm.

4. The adhesive-free air filter cartridge of claim 1, wherein: the width of the flange edge (3) is 3-30 mm.

5. The adhesive-free air filter cartridge of claim 1, wherein: the whole thickness of the filter element is 20 mm-500 mm.

6. The adhesive-free air filter cartridge of claim 1, wherein: the gap between adjacent hood-shaped raised structures (1) is 3-50 mm.

7. The adhesive-free air filter cartridge of claim 1, wherein: the filter layer (4) comprises a filling body, and a plurality of air holes are uniformly arranged on the filling body at intervals.

8. the adhesive-free air filter cartridge of claims 1 or 7, wherein: the filter layer (4) is arranged in the filter cavity in a hot pressing or ultrasonic dotting mode.

9. A filter cartridge production process for producing the adhesive-free air filter cartridge of any one of claims 1-8, comprising:

Arranging a cover-shaped bulge structure (1) on the filtering surface layer (5) in a hot pressing or ultrasonic molding mode;

Connecting the filter surface layer (5) with the flange edge (3);

A filter layer (4) is arranged on the inner side surface of the filter surface layer (5);

The flange edges (3) of the two filter bodies are connected by hot pressing or ultrasonic molding.

10. A filter cartridge production process according to claim 9, wherein: the filter is characterized in that the filter surface layer (5) is connected with the flange edge (3) and the filter layer (4) is arranged on the inner side surface of the filter surface layer (5), and the filter surface layer and the filter layer are formed in a hot pressing or ultrasonic mode.

Technical Field

The invention relates to the technical field of air filters, in particular to an adhesive-free air filter element and a production process thereof.

Background

At present, a plurality of air purifiers and air fresh air machines used by families, in particular to products such as air purifiers for children, are home furnishing products bringing health, but a large amount of glue adhesives are used for manufacturing the plurality of purifiers. As is well known, the adhesive can emit VOC (volatile organic compounds) gaseous pollutants, such as formaldehyde and other gases, so that the adhesive is a pollution source, and many filter elements of air purifiers in the market are placed in a sealed state for 24 hours and the emitted VOC conditions are detected, and the situation that the VOC exceeds the standard is found.

The current situation is that filter elements in air purifiers are using a large amount of glue, for example: the filter material compounding process of the conventional filter adopts sub-sensitive hot melt glue, the folding and folding of the conventional filter are fixed by EVA or po glue, and the peripheral sealing strip of the conventional filter is provided with sub-sensitive back glue. Can know that the filter core among the air purifier can give out a large amount of poisonous and harmful gas, will cause great pollution to the air in the environment, is unfavorable for the purification of air, can cause very big injury to people's health.

Therefore, the existing air filter element can emit air pollution components in the process of purifying and treating air, which is not beneficial to the purification treatment of air and reduces the air quality of the surrounding environment. Therefore, a more reasonable technical scheme is required to be provided to solve the technical problems in the prior art.

Disclosure of Invention

The invention provides an adhesive-free air filter element, wherein a front layer filter body and a rear layer filter body of the air filter element are combined to form a complete filter element in a hot-press forming or ultrasonic forming mode, adhesives are not used integrally, the filter element does not emit VOC, and the air quality in the surrounding environment is kept at a higher level.

In order to realize the effect, the invention adopts the technical scheme that:

The filter element of the air filter without the adhesive comprises two air filter bodies which are buckled with each other, a filter cavity is formed between the two air filter bodies, and a filter layer is arranged in the filter cavity; the air filter body comprises a filter surface layer and a flange edge connected with the filter surface layer, wherein a plurality of cover-shaped protruding structures are continuously arranged on one side surface of the filter surface layer, the flange edge is arranged on the other side surface of the filter surface layer, and the edge of the filter surface layer is pressed with the flange edge.

the air filter element disclosed above can be used for filtering particulate pollutants (pollen, catkin, hair, dust, cigarettes, haze and the like), filtering gaseous pollutants (formaldehyde, toluene, ammonia gas, carbon monoxide, carbon dioxide, nitrogen dioxide, hydrocarbons and other VOC harmful gases), removing microbial pollutants, and sterilizing and disinfecting (escherichia coli, staphylococcus aureus, candida albicans, helicobacter pylori, influenza virus and the like). The filtering surface layer is made of a material with the Gurley stiffness (mg) of 200-1000, so that the shape maintaining effect of the filtering surface layer is good, and the cover-shaped bulge structure on the filtering surface layer can keep the stable shape and realize the filtering effect after hot press molding or ultrasonic molding without auxiliary shaping by an adhesive; meanwhile, the filter surface layer is connected with the flange edge in a hot-press forming or ultrasonic forming mode, so that a connection mode of using an adhesive is avoided, and the filter element does not emit harmful gases such as VOC (volatile organic compounds) and the like; meanwhile, after the flange edges of the two filter bodies are attached, the filter elements can be prevented from emitting harmful gases such as VOC (volatile organic compounds) and the like through hot press molding process treatment or ultrasonic molding process treatment.

Further, the filtering surface layer meets a certain permeability and is used for initially blocking impurities, the filtering surface layer disclosed in the technical scheme is optimized, and the following feasible schemes are given out: the filtering surface layer is made of PP (polypropylene) material and PET (Polyethylene terephthalate) material in a composite mode.

further, the flange edge disclosed in the above technical solution is optimized, and the following feasible solutions are given as examples: the thickness of the flange edge is 3 mm-100 mm.

preferably, the Gurley stiffness (mg) of the material used for the filtering surface layer is 200-1000, the thickness of the material is 1-9 mm, the tensile strength (N/50mm) is 20-200, the air permeability (mm/s) is 100-6000, the resistance strength (pa) is 3-190, the filtering efficiency (0.3 mu) is 20-99.9995%, the filtering layer arranged in the filtering cavity can be partially made of carbon-sandwiched cloth, and the gram weight of the carbon-sandwiched cloth product is 100-2000 g (the carbon cloth material is also made by a glue-free process).

Furthermore, the dimensions of the flange edge disclosed in the above technical solution are preferably set, and the following possible solutions are given: the width of the flange edge is 3 mm-30 mm.

further, the overall thickness of the filter element disclosed in the above technical solution is optimally set, which includes the following feasible solutions: the whole thickness of the filter element is 20 mm-500 mm.

Still further, the structure of the filter surface layer is optimized, and the following feasible schemes are given: the gap between adjacent hood-shaped raised structures is 3 mm-50 mm.

preferably, the length and width of the filter body are 50 mm-1000 mm, and the thickness of the flange edge is 3 mm-100 mm.

Further, the filter layer disclosed in the above technical solution is optimized, and the following feasible solutions are given: the filter layer comprises a filling body, and a plurality of air holes are uniformly arranged on the filling body at intervals.

further, the filter layer disclosed in the above technical solution is optimized, and the following feasible solutions are given: the filter layer is arranged in the filter cavity in a hot pressing or ultrasonic dotting mode.

The present invention also discloses a filter element production process for producing the adhesive-free air filter element described above, comprising:

Arranging a cover-shaped bulge structure on the filtering surface layer in a hot pressing or ultrasonic forming mode;

connecting the filtering surface layer with the flange edge;

A filter layer is arranged on the inner side surface of the filter surface layer;

And connecting the flange edges of the two filter bodies by hot pressing or ultrasonic molding.

Further, the steps in the above technical solution are optimized, which includes the following feasible solutions: the filter surface layer is connected with the flange edge, the filter layer is arranged on the inner side surface of the filter surface layer, and the filter layer and the flange edge are formed in a hot pressing or ultrasonic forming mode.

Compared with the prior art, the invention has the beneficial effects that:

1. The filter element provided by the invention does not contain an adhesive, the filter body is connected in a hot pressing mode or an ultrasonic forming mode, and finally the formed filter body does not emit toxic and harmful gases such as VOC and the like, so that the air purification efficiency is improved.

2. According to the process provided by the invention, no adhesive is adopted in the production process, and the filter element produced by the process is healthier and more environment-friendly.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic view showing the overall structure of a filter body in example 1;

FIG. 2 is a schematic top view of the filter cartridge of example 1;

FIG. 3 is a schematic view, partly in section, of a filter cartridge according to example 1;

Fig. 4 is a schematic top view of the filter cartridge of example 2.

In the above drawings, the meaning of each reference numeral is: 1. a hood-like ridge structure; 2. an edge; 3. a flange edge; 4. A filter layer; 5. and (4) a filtering surface layer.

Detailed Description

the invention is further explained below with reference to the drawings and the specific embodiments.

It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Specific structural and functional details disclosed herein are merely illustrative of example embodiments of the invention. This invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes," and/or "including," when used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, elements, components, and/or groups thereof.

It should also be noted that, in some alternative implementations, the functions/acts noted may occur out of the order noted in the figures. For example, two figures shown in succession may, in fact, be executed substantially concurrently, or the figures may sometimes be executed in the reverse order, depending upon the functionality/acts involved.

In the following description, specific details are provided to facilitate a thorough understanding of example embodiments. However, it will be understood by those of ordinary skill in the art that the example embodiments may be practiced without these specific details. For example, systems may be shown in block diagrams in order not to obscure the examples in unnecessary detail. In other instances, well-known processes, structures and techniques may be shown without unnecessary detail in order to avoid obscuring example embodiments.