CN204447571U - A kind of air purifier high efficiency filter filter core - Google Patents

Abstract

The utility model relates to a high-efficiency filter element for an air purifier. The filter element includes a purification unit for purifying air and a first filter frame and a second filter frame respectively arranged at both ends of the purification unit. The first The inner surfaces of the filter screen frame and the second filter screen frame are symmetrically provided with a plurality of polygonal groove structures, and the two ends of the filter unit are respectively connected with the first filter screen frame and the second filter screen through the groove structures. The frames are connected and fixed, and an air outlet is provided on the first filter screen frame; when the filter element is working, air enters from the outside of the purification unit, passes through the inside of the purification unit, and is discharged from the air outlet. The air purifier of the utility model uses a high-efficiency filter element to fix each filter screen through the filter screen frame, so that each filter screen can be replaced separately, and the service life of each filter screen is utilized to the greatest extent, thereby effectively reducing costs and saving resource.

Description

High-efficiency filter element for air purifier

technical field

The utility model relates to a filter element, in particular to a high-efficiency filter element for an air purifier.

Background technique

Research by experts at home and abroad has proved that after "soot type" and "photochemical smog type" pollution, modern people are entering the third pollution period marked by "indoor air pollution". Studies have shown that indoor air pollution is two to five times worse than outdoor air, and can reach 100 times in special cases. A survey in the United States shows that more than 500 kinds of volatile organic compounds can be detected in indoor air, and the harmful substances in indoor air are dozens of times higher than those outdoors. According to a Canadian health organization survey, 68% of diseases originate from indoor air pollution.

According to statistics from the China Consumers Association, the focus of consumer complaints has gradually shifted from quality complaints to indoor environmental pollution complaints. The national health, construction and environmental protection departments conducted a random inspection of interior decoration materials, and found that 68% of the materials with toxic gas pollution, these decoration materials will volatilize more than 300 volatile organic compounds, such as formaldehyde, trichlorethylene, benzene, Xylene, etc., can easily cause various diseases. Buildings themselves can also be a source of indoor air pollution. There is another hidden danger of indoor air pollution—air conditioning, which is becoming more and more popular in modern life, causing the human body, room and air conditioner to form a closed circulation system indoors, which can easily cause bacteria, viruses, molds and other microorganisms to multiply in large numbers.

As the most simple and effective way to control indoor air pollution, air purifiers are gradually becoming popular. As the core component of the air purifier, the type of filter element plays a decisive role in the purification performance of the air purifier. However, there are obvious performance defects and safety defects in the present composite filter element.

At the same time, in view of the characteristics of the filter element itself, the filter element must be replaced within a certain period of time. However, the current composite filter elements usually use a variety of filter screens for composite molding. However, due to the different life spans of various filter screens, for example, the service life of activated carbon filter screens is generally greater than that of high-efficiency filter screens. When replacing the filter element, the filter screen that has not reached its service life is also replaced, which not only increases the cost of use, but also causes a waste of resources.

Utility model content

The purpose of the utility model is to propose a high-efficiency filter element for an air purifier that is convenient for independent replacement of each single filter element and can purify air efficiently and safely.

In order to achieve the above object, the utility model provides a high-efficiency filter element for an air purifier, the filter element includes a purification unit for purifying air, and a first filter screen frame and a second filter screen respectively arranged at both ends of the purification unit Frame, the inner surfaces of the first filter screen frame and the second filter screen frame are symmetrically provided with a plurality of polygonal groove structures, and the two ends of the filter unit are respectively connected to the first filter screen through the groove structures. The frame and the second filter screen frame are connected and fixed, and the first filter screen frame is provided with an air outlet; when the filter element is working, the air enters from the outside of the purification unit, passes through the inside of the purification unit, and flows from the Exhaust from the air outlet.

Preferably, the purification unit includes a HEPA filter, an electrostatic electret filter, a high-energy particle purification filter, and a honeycomb catalytic filter arranged sequentially from outside to inside.

Preferably, the shapes of the HEPA filter, the electrostatic electret filter, the high-energy particle purification filter and the honeycomb catalytic filter are all polygonal prism frames.

Preferably, the size of the plurality of polygonal groove structures cooperates with the HEPA filter, the electrostatic electret filter, the high-energy particle purification filter, and the honeycomb catalytic filter respectively installed therein and is nested and connected with each other.

Preferably, the honeycomb catalytic filter is a honeycomb ceramic mesh whose outer surface is coated with a noble metal layer and whose inner surface is coated with a metal manganese or manganese oxide layer.

Preferably, an ultraviolet lamp is provided on the inner surface of the second filter frame.

Preferably, the purification unit further includes an activated carbon mesh or an activated carbon fiber mesh disposed on the innermost layer.

Based on the above-mentioned technical scheme, the utility model has the advantages of:

The air purifier of the utility model uses a high-efficiency filter element to fix each filter screen through the filter screen frame, so that each filter screen can be replaced separately, and the service life of each filter screen is utilized to the greatest extent, thereby effectively reducing costs and saving resource. Moreover, due to the use of a special air inlet and outlet structure, not only the air can pass through each filter screen evenly, but also the filter area is effectively increased, and finally a better purification effect is obtained. Further, the use of honeycomb catalytic filter can not only enhance the efficiency of high-energy particles to degrade organic waste gas, but also decompose ozone generated by high-energy particles and ultraviolet light, prevent personal injury caused by high-concentration ozone, and improve the safety of air purifiers.

Description of drawings

The drawings described here are used to provide a further understanding of the utility model and constitute a part of the application. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute improper limitations to the utility model. In the attached picture:

Fig. 1 is a schematic longitudinal sectional view of an air purifier with a high-efficiency filter element;

Fig. 2 is a schematic cross-sectional view of a high-efficiency filter element for an air purifier;

Fig. 3 is a schematic top view of the second screen frame;

Fig. 4 is a schematic diagram of the longitudinal section of the second screen frame;

Fig. 5 is a schematic longitudinal sectional view of the first screen frame;

Among them, 1~first filter frame; 2~second filter frame; 3~groove structure; 4~HEPA filter; 5~electrostatic electret filter; 6~high energy particle purification filter; 7~honeycomb catalysis filter screen; 8~air outlet; 9~ultraviolet lamp.

Detailed ways

The technical solutions of the present utility model will be further described in detail through the drawings and embodiments below.

The utility model provides a high-efficiency filter element for an air purifier. As shown in Figures 1 to 5, the filter element includes a purification unit for purifying air and a first filter frame 1 and Second mesh frame 2. The inner surfaces of the first filter frame 1 and the second filter frame 2 are symmetrically provided with a plurality of polygonal groove structures 3 , and in this embodiment, the groove structures 3 are rectangular. Both ends of the filter unit are respectively connected and fixed to the first filter frame 1 and the second filter frame 2 through the groove structure 3 , and the first filter frame 1 is provided with an air outlet 8 .

As shown in Figures 1 and 2, the purification unit includes a HEPA filter 4, an electrostatic electret filter 5, a high-energy particle purification filter 6, and a honeycomb catalytic filter 7 arranged sequentially from outside to inside.

The HEPA filter is divided into five materials: PP filter paper, glass fiber, composite PP PET filter paper, melt-blown polyester non-woven fabric and melt-blown glass fiber. It is characterized by small wind resistance, large dust holding capacity, high filtration accuracy, and can It can be processed into various sizes and shapes according to needs; the filtration efficiency of the HEPA filter screen 4 is proportional to its surface area, and the HEPA filter screen 4 in the air purification medium unit is folded in multiple layers, and the area after unfolding is increased by about 14.5 times than when folded, which can Effectively traps inhalable particles, smoke, dust, bacteria, etc. above 0.3 microns, and is resistant to high temperature, corrosion and mildew, and has excellent filtration performance.

After being treated by the HEPA filter 4, the >0.3 micron particles in the air are basically removed, but the <0.3 micron particles have not been treated, and the electrostatic adsorption works at this time; the filter uses an electrostatic electret filter 5, It can remove dust, smoke, foggy particles, pet dander, moldy robes, pollen, bacteria, and viruses with a removal rate of up to 99.97%. It has the advantages of low resistance, high efficiency, and long life, and can effectively prevent fine particles from clogging The capillary in the adsorption medium in the subsequent treatment process prolongs the service life of the adsorption medium.

The high-energy particle purification filter screen 6 produces high-energy particles, such as plasma, negative ions, positive ions, ozone, etc., through a discharge device, which can powerfully purify and process harmful substances such as VOC, peculiar smell, bacteria, and viruses in the air. , viruses, etc. The removal rate is as high as 99%. High-energy particles have extremely strong killing power to bacteria, molds, germs and other microorganisms. It kills viruses by directly destroying their RNA and NDA substances. The process of killing bacteria and virus-like microorganisms is done by high-energy particles It first acts on the cell membrane, and then destroys the tissue in the membrane until it dissolves and dies.

Preferably, the honeycomb catalytic filter 7 is a honeycomb ceramic mesh whose outer surface is coated with a noble metal layer and whose inner surface is coated with a metal manganese or manganese oxide layer. It can not only catalyze the reaction between formaldehyde and oxygen in the air, but also catalyze the reaction of various harmful gases and odors in ammonia, toluene, xylene, hydrogen sulfide and VOC with oxygen to generate water and carbon dioxide, which can significantly improve the The high-energy particles produced by the high-energy particle purification filter screen 6 have high efficiency in removing VOC and peculiar smell, and deeply purify the air. Further, the honeycomb catalytic filter 7 can also catalyze and decompose ozone generated by high-energy particles and ultraviolet light, prevent personal injury caused by high-concentration ozone, effectively prevent the formation of secondary pollution, and improve the safety of the air purifier.

Preferably, the purification unit further includes an activated carbon mesh or an activated carbon fiber mesh disposed on the innermost layer. Activated carbon is a very fine carbon particle with a large surface area. When gas pollutants hit the capillary, the strong adsorption force field around the pores of activated carbon will immediately suck the gas molecules into the pores to purify the air. Activated Carbon Fiber (ACF for short) is an activated carbon-containing fiber. The surface of the fiber is covered with micropores (that is, the positions occupied by hydrogen and oxygen atoms before volatilization), and its pore diameter is one hundred thousandth of a hair. Expand the inner surface of these micropores, and the expanded area of 1g of activated carbon fiber felt is as high as 1600m ² , and these micropores play the role of absorbing odor.

Preferably, an ultraviolet lamp 9 is provided on the inner surface of the second filter frame 2 . The ultraviolet rays emitted by the ultraviolet lamp 9 can destroy the molecular structure of DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) in bacterial viruses, causing growth cell death and (or) regenerative cell death, and reaching the effect of sterilization.

As shown in FIG. 2 , the shapes of the HEPA filter 4 , the electrostatic electret filter 5 , the high-energy particle purification filter 6 , and the honeycomb catalytic filter 7 are all polygonal prism frames. Preferably, the size of the plurality of polygonal groove structures 3 is mutually connected with the HEPA filter screen 4, the electrostatic electret filter screen 5, the high-energy particle purification filter screen (6), and the honeycomb catalytic filter screen 7 respectively installed therein. Cooperate and nested with each other, so that the HEPA filter 4, the electrostatic electret filter 5, the high-energy particle purification filter 6, and the honeycomb catalytic filter 7 are respectively engaged on the first filter frame 1 and the second filter frame. In the corresponding grooves in the groove structure 3 on the two filter screen frames 2, to fix each filter screen. Each filter screen is fixed by the filter screen frame, so that each filter screen can be replaced separately, and the service life of each filter screen is utilized to the greatest extent, thereby effectively reducing costs and saving resources.

The working principle of the utility model is:

When the filter element is working, air enters from the outside of the purification unit, passes through the inside of the purification unit, and is discharged from the air outlet 8 . Due to the special air inlet and outlet structure, when the filter element is set in the air purifier, all the air paths are guaranteed to be consistent, so that the speed of the air passing through the filters of each layer is consistent, not only makes the air pass through each filter evenly The net, and effectively increases the filter area, and finally obtains a better purification effect.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model and not limit it; although the utility model has been described in detail with reference to the preferred embodiment, those of ordinary skill in the art should understand that: still The specific implementation of the utility model can be modified or some technical features can be equivalently replaced; without departing from the spirit of the technical solution of the utility model, all of them should be included in the scope of the technical solution claimed by the utility model.

Claims (7)

1. A high-efficiency filter element for an air cleaner, characterized in that: the filter element includes a purification unit for purifying air and a first filter screen frame (1) and a second filter screen frame that are respectively arranged at the two ends of the purification unit (2), the inner surfaces of the first screen frame (1) and the second screen frame (2) are symmetrically provided with a plurality of polygonal groove structures (3), and the two ends of the filter unit pass through the The groove structure (3) is respectively connected and fixed with the first filter screen frame (1) and the second filter screen frame (2), and the first filter screen frame (1) is provided with an air outlet (8); when When the filter element is working, air enters from the outside of the purification unit, passes through the inside of the purification unit, and is discharged from the air outlet (8). 2. The filter element according to claim 1, characterized in that: the purification unit comprises a HEPA filter (4), an electrostatic electret filter (5), and a high-energy particle purification filter (6) arranged sequentially from outside to inside , Honeycomb catalytic filter screen (7). 3. The filter element according to claim 2, characterized in that: the HEPA filter screen (4), electrostatic electret filter screen (5), high-energy particle purification filter screen (6), honeycomb catalytic filter screen (7) All polygonal prism frames. 4. The filter element according to claim 2 or 3, characterized in that: the size of the plurality of polygonal groove structures (3) is compatible with the HEPA filter (4) and electrostatic electret filter respectively installed therein. The net (5), the high-energy particle purification filter screen (6), and the honeycomb catalytic filter screen (7) cooperate with each other and are nested and connected with each other. 5. The filter element according to claim 2 or 3, characterized in that: the honeycomb catalytic filter screen (7) is a honeycomb ceramic whose outer surface is coated with a noble metal layer and the inner surface is coated with a metal manganese or manganese oxide layer net. 6. The filter element according to claim 1, characterized in that: an ultraviolet lamp (9) is provided on the inner surface of the second filter screen frame (2). 7. The filter element according to claim 2, wherein the purification unit further comprises an activated carbon mesh or an activated carbon fiber mesh arranged in the innermost layer.