CN114688634A

CN114688634A - Novel low-resistance high-efficiency air filter and purifying air conditioner thereof

Info

Publication number: CN114688634A
Application number: CN202210283995.1A
Authority: CN
Inventors: 陈志群
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-21
Filing date: 2022-03-21
Publication date: 2022-07-01

Abstract

The invention particularly discloses a novel low-resistance high-efficiency air filter which comprises a frame body, a corona electrode, a charge-capable electrostatic fiber layer, a static electrode and a ground electrode, wherein the corona electrode and the charge-capable electrostatic fiber layer are arranged in the frame body at intervals along the air flowing direction; the corona electrode is composed of a plurality of leads electrically connected with a power supply, and generates corona when electrified so as to enable dust particles in the flowing air to carry negative charges; when the static electrode is electrified, the electrostatic fiber layer with the energy charge is continuously charged so that the electrostatic fiber layer with the energy charge is continuously positively charged; the electrostatic fiber layer capable of charging filters air through physical interception and electrostatic adsorption. The invention also discloses a purifying air conditioner. The novel low-resistance high-efficiency air filter and the air purifying air conditioner thereof have the advantages of low resistance, high efficiency, stable filtering performance, no ozone generation air filtering effect, simple structure, good adaptability and convenient installation and maintenance.

Description

Novel low-resistance high-efficiency air filter and purifying air conditioner thereof

Technical Field

The invention relates to an air filtering device, in particular to a novel low-resistance high-efficiency air filter and a purification air conditioner comprising the same.

Background

Due to the pollution of the natural environment and the indoor influence of air ventilation, such as public places, offices and families, especially special places with sanitary standard requirements, such as hospitals, pharmaceutical factories, food factories, air and air conditioning systems or air circulation systems, a large amount of dust particles, bacteria and other microorganisms are collected and become important pollution sources of air in these places. Therefore, air is filtered and purified. The ever-increasing awareness of people's health through the effects of airborne viruses, such as new crown blight, has led to an increasing need for air purification.

The traditional air filtration is physical filtration through air filter cotton or an air filter element, and the resistance of filtration is particularly large in order to filter micro particles in air. Taking a clean operating room with a grade requirement on cleanliness as an example, in order to achieve a hundred-grade clean environment of the operating room, a filter with a filtration grade not lower than 35 specified in GB/T13554-. The initial resistance after the high-efficiency filter is installed is more than 200 Pa. And as the time and frequency of use increase, the filtration efficiency becomes lower and lower.

In order to reduce resistance, two types of filters are generally adopted at present, one type is an electrostatic fiber filter, the product is charged when leaving a factory, but along with the increase of service time and the change of environmental temperature and humidity, the charge quantity is gradually reduced, the filtering efficiency is continuously reduced, and meanwhile, due to the fiber material and the internal gap of the material, the filtering efficiency is not high. Moreover, the filter is afraid of wet, oily or neutral uncharged particles, and the guarantee degree of the filtering performance is insufficient.

The other one is an electrostatic dust removal filter, which generates corona through a 8000V high-voltage wire, when air flows through a corona section, dust particles in the air are charged, and the charged dust particles are adsorbed on a metal sheet under the action of an electric field of a dust collecting electrode of the charged dust particles through a 4000V high-voltage positive electrode, so that the aim of purifying the air is fulfilled. If the gap between the dust collecting poles of the electrostatic filter is too large and tiny particles cannot be adsorbed, the purification efficiency is not high; and if the gap is too small, it causes discharge to generate ozone. Therefore, the electrostatic precipitator filter cannot achieve both high efficiency and no ozone due to the physical gap between the dust collecting electrodes. In addition, the electrostatic dust removal filter has the filtering efficiency of less than 50% on particles with the particle size of 0.3 mu m, and the filtering efficiency is greatly influenced by particle properties and temperature and humidity and has unstable performance. In addition, the thickness of the electrostatic dust removal filter is generally about 200mm, and all materials are made of metal, so that the electrostatic dust removal filter has the defects of large volume, heavy weight, inconvenience in installation and maintenance and the like.

Disclosure of Invention

In view of the above, there is a need to provide a novel air filter with low resistance, high efficiency, stable filtering performance and no ozone generation, which has a simple structure, good adaptability and is convenient to install and maintain.

In order to achieve the purpose, the invention adopts the following technical scheme:

a novel low-resistance high-efficiency air filter comprises a frame body, a corona electrode, a chargeable electrostatic fiber layer, a standing electrode and a ground electrode, wherein the corona electrode and the chargeable electrostatic fiber layer are arranged in the frame body at intervals along the air flowing direction; the corona electrode is composed of a plurality of leads electrically connected with a power supply, and generates corona when electrified so as to enable dust particles in flowing air to carry negative charges; when the static electrode is electrified, the static charge fiber layer with the charge is continuously charged so that the static charge fiber layer with the charge is continuously positively charged; the energy charge static fiber layer filters air through physical interception and static adsorption.

Further, the electret is tightly attached to the electrostatic fiber layer capable of charging on the side facing the corona electrode.

Further, the earth electrode is arranged between the corona electrode and the electrostatic fiber layer capable of charging and is close to the corona electrode.

Further, the corona electrode and the ground electrode are integrated in an inner frame and integrally sleeved in the frame body.

Further, still include disinfection and purification module, disinfection and purification module locates the framework is close to one side on ability electric charge static fibrous layer for to filterable air disinfection and purification.

Further, disinfection purification module includes the casing that both sides link up, one side that the casing link up with can the relative setting of charge static fibrous layer and with the framework intercommunication, be equipped with the ultraviolet lamp on at least one inside wall in the link up casing, the inside wall that links up the casing surrounds and constitutes air disinfection and purification space.

Further, the disinfection and purification module further comprises a plasma generator, and the plasma generator and the ultraviolet lamp are arranged on different inner walls.

Further, the disinfection and purification module further comprises a photocatalyst net, wherein the photocatalyst net is arranged at a through side opening part of the shell, which is close to the chargeable electrostatic fiber layer.

Further, the disinfection and purification module further comprises a protection net, wherein the protection net is arranged at a through side opening part of the shell far away from the chargeable electrostatic fiber layer.

The invention also provides a purification air conditioner, which comprises an air conditioner host and a novel low-resistance high-efficiency air filter, wherein the low-resistance high-efficiency air filter is arranged in the air conditioner host or/and at the air supply opening or/and at the air return opening.

The novel low-resistance high-efficiency filter has the beneficial effects that:

1) the invention can achieve the filtering efficiency of more than 95 percent of tiny particles by combining the physical interception of the charged electrostatic fiber layer with the electrostatic adsorption and filtration combination, and simultaneously realizes the requirement of low resistance;

2) the combination of physical interception and electrostatic adsorption filtration ensures that the corona electrode and the electret electrode do not need too high voltage, and meanwhile, because the electrode spacing does not influence the filtration performance, the electrode spacing has no too high requirement, thereby realizing high efficiency and not generating ozone;

3) the standing electrode continuously charges the electrostatic fiber layer with the energy charge, so that the filtering performance of the electrostatic fiber layer with the energy charge is stable and reliable;

4) the corona electrode and the electret electrode do not need too high voltage and have too high requirement on the electrode distance, so that the invention has simple structure, can be simply transformed and installed on a common air conditioner, a circulating ventilation system or a fresh air fan to realize low-resistance and high-efficiency filtering effect, has good adaptability, and is convenient to install and maintain.

The purifying air conditioner provided by the invention has the novel low-resistance high-efficiency air filter, and the air conditioner purifying effect of low resistance, high efficiency, stable filtering performance and no ozone generation is realized.

Drawings

FIG. 1 is a schematic structural diagram of a novel low-resistance high-efficiency air filter according to the present invention;

FIG. 2 is a schematic partial cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic structural view of another embodiment of the novel low-resistance high-efficiency air filter of the present invention;

FIG. 4 is a schematic view of the disinfection and purification module according to the present invention;

FIG. 5 is a schematic partial cross-sectional view of B-B of FIG. 4;

FIG. 6 is a schematic partial cross-sectional view of C-C of FIG. 4;

FIG. 7 is a schematic structural view illustrating a clean air conditioner according to the present invention;

FIG. 8 is a schematic view of a modified fan coil incorporating a novel low resistance high efficiency air filter of the present invention;

FIG. 9 is a schematic view of an embedded ceiling structure incorporating a novel low resistance high efficiency air filter of the present invention;

FIG. 10 is a schematic view of a conventional fresh air machine with a novel low-resistance high-efficiency air filter according to the present invention;

FIG. 11 is a schematic structural view of a conventional circulator group equipped with a novel low-resistance high-efficiency air filter according to the present invention;

fig. 12 is a schematic structural view of a clean fresh air machine provided with the novel low-resistance high-efficiency air filter.

Description of the reference numerals:

a novel low-resistance high-efficiency air filter 1; a frame body 11; a corona electrode 12; a chargeable electrostatic fibrous layer 13; a electret 14; a ground electrode 15; an inner frame 16; a power supply box 17; a disinfection and purification module 2; a housing 21; an ultraviolet lamp 22; a plasma generator 23; a photocatalyst net 24; a protection net 25; an ultraviolet lamp drive 26; a clean air conditioner 3; a fan coil 4; an embedded type ceiling 5; a common fresh air fan 6; a common circulating unit 7; and cleaning the fresh air machine 8.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be further clearly and completely described below with reference to the embodiments of the present invention. It should be noted that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like, are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present invention.

The terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, the definitions of "first", "second", "third", "fourth" features may explicitly or implicitly include one or more of such features.

Example 1

As shown in fig. 1-2, a novel low-resistance high-efficiency air filter 1 includes a frame 11, a corona electrode 12, a chargeable electrostatic fiber layer 13, a electret 14 tightly attached to the chargeable electrostatic fiber layer 13, and a ground electrode 15, which are arranged in the frame 1 at intervals along the air flowing direction, a power box 17 arranged at one end of the frame, the power box 17 being electrically connected to the corona electrode 12, the electret 14 and the ground electrode 15, and the corona electrode 12 and the electret 14 being supplied with power through the power box 17, although the corona electrode and the electret can also be directly supplied with power by an external power source.

Wherein, the corona electrode 12 is composed of a plurality of conducting wires which are horizontally arranged at intervals, the corona electrode 12 is powered by a power supply box, the corona electrode can generate corona without too high voltage to enable dust particles in the flowing air to carry negative charges, and if the dust particles in the air are enabled to carry negative charges quickly and efficiently, the voltage of 8000-10000V is preferred. The electret 14 does not require too high a voltage to continuously charge the chargeable electrostatic fibrous layer 13 with positive charges when the power pack is supplying power, but of course 4000V is preferred for the electret to quickly and efficiently charge the chargeable electrostatic fibrous layer.

The electrostatic chargeable fiber layer 13 is preferably electrostatic chargeable fiber cotton, but the present invention is not limited to electrostatic chargeable fiber cotton, and other electrostatic chargeable fiber materials are also included in the electrostatic chargeable fiber layer of the present invention.

The working principle of the novel low-resistance high-efficiency air filter is as follows: the power supply box is opened to provide 8000-10000V of voltage for the corona electrode, the corona electrode generates corona, meanwhile, the power supply box provides about 4000V of voltage for the standing electrode, the standing electrode continuously supplies power for the electrostatic fiber layer with energy charge to enable the electrostatic fiber layer to be continuously filled with positive charge, when air flows through the corona section, dust particles in the air are charged with negative charge, the dust particles with negative charge pass through the electrostatic fiber layer with energy charge, particles larger than 0.5 mu m are mainly filtered in the air through physical interception of the electrostatic fiber layer with energy charge, and particles smaller than 0.5 mu m, such as particles of 0.3 mu m and tiny particles of 0.1 mu m are electrostatically adsorbed in the air through the positive charge of the electrostatic fiber layer with energy charge and are filtered.

The following are experimental data tests before and 30 minutes after the air conditioner is started by installing the filter of the invention and experimental comparison results of the filter of the invention and the two existing low-resistance air filters.

Comparative experimental ringEnvironmental parameters: the size is as follows: 4m 3.5m 3m (length width height) and volume 42m³Laboratory, room temperature: 15.5 ℃, humidity 57% and wind speed 1 m/s.

A detection tool: dust particle counter.

Data detection before and 30 minutes after starting of an air conditioner provided with the novel low-resistance high-efficiency air filter is as follows:

(watch one)

The filter of the invention is compared with the data monitoring of the disposable filtering experiment of two existing low-resistance air filters, the following table two:

(watch two)

The air cleanliness class and the maximum particle concentration are as follows:

(watch III)

The statistical results of the data detected by the experiments can be seen as follows:

1. the electrostatic dust collection filter has the particle filtration efficiency of less than 50% on 0.3 mu m (the leakage rate is 50%), the H11 electrostatic fiber filter has the particle filtration efficiency of about 91% on 0.3 mu m (the leakage rate is 9%), and the filter has the particle filtration efficiency of more than 95% on 0.3 mu m (the leakage rate is 5%), the leakage rate of the filter is reduced by 44.4% compared with the H11 electrostatic fiber filter (9-5)/50% compared with the electrostatic dust collection filter (50-5)/50% compared with 90%.

2. Comparing the air cleanliness class with the maximum particle concentration table, the laboratory equipped with the filter of the present invention can achieve the traditional 100-class cleanliness class standard. In the traditional operating room, to achieve hundred grades of clean environment of the operating room, a filter with the filtration grade not lower than 35 specified in the national standard GB/T13554-2020 needs to be installed, and the efficiency of the filtration under the rated air flow is not less than 99.95 (the particle size is 0.3 μm) (the industry is called as an H13 high-efficiency filter). The initial resistance after installing the high-efficiency filter is more than 200Pa, and the resistance after installing the filter is less than 50 Pa.

Through the experimental detection and comparison, compared with the existing filter, the low-resistance high-efficiency air filter disclosed by the invention has the beneficial effects that:

(1) the physical interception of the charged electrostatic fiber layer is combined with the electrostatic adsorption filtration combination, so that the filtration efficiency of micro particles can reach 95%, the resistance is greatly reduced, and the high-efficiency low-resistance air filtration effect is really realized;

(2) physical interception and electrostatic adsorption filtration are combined, so that too high voltage is not needed for a corona electrode and a standing electrode, and meanwhile, the filtration performance is not influenced by the electrode distance, so that the electrode distance is not too high, the high efficiency is realized, and ozone is not generated;

(3) the static electrode continuously charges the electrostatic fiber layer with the energy charge, so that the filtering performance of the electrostatic fiber layer with the energy charge is stable and reliable.

(4) The filter has a simple structure, can be simply transformed and installed on a common air conditioner, a circulating ventilation system or a fresh air fan to realize low-resistance and high-efficiency filtering effects, has good adaptability, and is convenient to install and maintain (the point can be explained by combining with specific equipment below).

Further, as shown in fig. 1-2, the electret 14 is closely attached to the electrostatic fiber layer 13 facing the corona electrode 12, so that the filter of the present invention has a more compact structure, higher stability and higher safety on the basis of better filtering effect.

Further, as shown in fig. 1-2, a ground electrode 15 is disposed between corona electrode 12 and chargeable electrostatic fibrous layer 13 and adjacent to corona electrode 12, resulting in a more compact structure while providing greater stability and safety of the present invention. Preferably, corona electrode 12 and ground electrode 15 are integrated in an inner frame 16 and integrally nested in frame 11, as shown in figures 1-2, making the filter of the present invention more integrated and easier to install and maintain.

Example 2

The embodiment is a technical scheme that a disinfection and purification module is added on the basis of the embodiment 1.

As shown in fig. 3, the novel low-resistance high-efficiency air filter 1 further includes a disinfection and purification module 2, and the disinfection and purification module 2 is disposed on one side of the frame 11 close to the electrostatic fiber layer 13 capable of charging.

Specifically, as shown in fig. 4-6, the disinfection and purification module 2 includes a housing 21 with two through sides, one through side of the housing 21 is opposite to the electrostatic fiber layer 13 capable of charging and is communicated with the frame 11, at least one inner sidewall of the through housing 21 is provided with an ultraviolet lamp 22, and the inner sidewall of the through housing 21 surrounds to form an air disinfection and purification space. Preferably, as shown in fig. 4, the ultraviolet lamps are distributed on one inner wall and upper and lower inner walls in the housing such that the air sterilizing and purifying space is uniformly irradiated with the ultraviolet lamps. Preferably, as shown in fig. 4, an ultraviolet lamp driving device 26 is further disposed in the housing of the disinfection and purification module, and the operation of the ultraviolet lamp is ensured by the ultraviolet lamp driving device 26 more stably and reliably. The ultraviolet lamp can eliminate and purify the particles filtered by the charge electrostatic fiber layer and the viruses and bacteria flowing through the air in the purifying space, thereby avoiding the viruses and bacteria from diffusing and spreading indoors along with air circulation, reducing the quality of purified air and ensuring safer replacement and installation in later period.

Further, as shown in fig. 4 and 6, the disinfection and purification module 2 further includes a plasma generator 23, the plasma generator 23 and the ultraviolet lamp 22 are disposed on different inner walls, preferably, the plasma generator 23 is disposed on the inner wall on the side opposite to the ultraviolet lamp, so as to ensure that the plasma can be uniformly distributed in the whole disinfection and purification space. The plasma generator can play a role in disinfection and sterilization, so that the quality of purified air is ensured, and the later-stage replacement and installation are safer.

Further, as shown in fig. 5, the disinfection and purification module 2 further includes a photocatalyst net 24, the photocatalyst net 24 is disposed at a through side opening of the housing 21 close to the electrostatic charge-capable fiber layer 13, the air entering the disinfection and purification module first passes through the photocatalyst net 24, and the photocatalyst net 24 continuously ensures that the activated medium is not lost under the illumination of the ultraviolet lamp, can be continuously regenerated and used, and has a sterilization effect while effectively removing the harmful gas and the odor in the flowing air.

Further, as shown in fig. 5, the disinfection and purification module 2 further includes a protection net 25, and the protection net 25 is disposed at a through side opening of the housing 21 away from the chargeable electrostatic fiber layer 13, and can play a role of safety protection.

The embodiment 2 of the novel low-resistance high-efficiency air filter disclosed by the invention has the functions of disinfection and purification on the basis of the beneficial effects of low resistance, high efficiency, stable filtering performance and no ozone generation in the embodiment 1. Not only realizing hundred-grade medical environment purification, but also realizing the double-carbon targets of environmental protection and energy conservation.

The invention also provides a purifying air conditioner, as shown in fig. 7, the purifying air conditioner of the invention comprises an air conditioner main unit 3 and the novel low-resistance high-efficiency air filter 1 of the invention in the embodiment 1 or the embodiment 2, and the low-resistance high-efficiency air filter 1 can be conveniently installed in the air conditioner main unit or/and at the air supply opening (not shown) or/and at the air return opening (not shown) through a frame 11. The purifying air conditioner has the advantages of low resistance, high efficiency, stable filtering performance and no ozone generation, and has the functions of disinfection and purification on the basis of the basic functions of the air conditioner.

In addition, the novel low-resistance high-efficiency air filter can be used for simply transforming the conventional common air conditioner, a circulating ventilation system, a fresh air fan, a fan disc, an embedded ceiling and the like, can realize the filtering, disinfecting and purifying effects with low resistance and high efficiency at low cost, has good adaptability and is convenient to install and maintain.

In the modification of a common fan coil, as shown in fig. 8, the fan coil provided with the novel low-resistance high-efficiency air filter of the invention comprises a fan coil body 4, an air supply pipe 41, an air supply diffuser 42, an air return grid 43 and the novel low-resistance high-efficiency air filter 1 provided with the frame 11 and arranged at the outlet of the air supply diffuser 42 or the inlet of the air return grid 43.

The modification of the embedded ceiling is that as shown in fig. 9, the embedded ceiling for installing the novel low-resistance high-efficiency air filter comprises an embedded ceiling main body 5 and the novel low-resistance high-efficiency air filter 1 installed at the outlet of the embedded ceiling through a frame 11.

As shown in fig. 10, the ordinary fresh air machine provided with the novel low-resistance high-efficiency air filter of the invention comprises a fresh air machine main body 6 and the novel low-resistance high-efficiency air filter 1 of the invention arranged in the fresh air machine main body through a frame 11, so that a fresh air machine air system is subjected to air inlet, G4 primary-effect filtering, air blower, flow equalization, F8 intermediate-effect filtering, low-resistance high-efficiency filtering, disinfection and purification, H10 sub-high-efficiency filtering and air outlet.

The improvement of the common circulating unit is that as shown in fig. 11, the common circulating unit provided with the novel low-resistance high-efficiency air filter comprises a circulating unit main body 7 and the novel low-resistance high-efficiency air filter 1 arranged in the circulating unit main body 7 through a frame 11, so that an air system of the circulating unit is subjected to air inlet, G4 primary-effect filtering, a fan, flow equalization, F8 intermediate-effect filtering, low-resistance high-efficiency filtering, disinfection and purification, surface cooling and air outlet.

The new clean air blower with the new low-resistance high-efficiency air filter is transformed, as shown in fig. 12, and comprises a new clean air blower main body 8 and the new low-resistance high-efficiency air filter 1 arranged in the new clean air blower main body through a frame 11, so that a new clean air blower air system is subjected to air inlet, primary-effect filtering, blower flow equalization, F8 medium-effect filtering, low-resistance high-efficiency filtering, disinfection and purification, H10 sub-high-efficiency filtering, surface cooling, deep dehumidification, heating and air outlet.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A novel low-resistance high-efficiency air filter is characterized by comprising a frame body, a corona electrode, a charge-capable electrostatic fiber layer, a standing electrode and a ground electrode, wherein the corona electrode and the charge-capable electrostatic fiber layer are arranged in the frame body at intervals along the air flowing direction; the corona electrode is composed of a plurality of leads electrically connected with a power supply, and generates corona when electrified so as to enable dust particles in flowing air to carry negative charges; when the static electrode is electrified, the static charge fiber layer with the charge is continuously charged so that the static charge fiber layer with the charge is continuously positively charged; the energy charge static fiber layer filters air through physical interception and static adsorption.

2. The novel low-resistance high-efficiency air filter as claimed in claim 1, wherein the electret is closely attached to the electrostatic fiber layer capable of charging on the side facing the corona electrode.

3. The novel low resistance high efficiency air filter of claim 1 wherein said ground electrode is disposed between and adjacent to said corona electrode and said layer of chargeable electrostatic fibers.

4. The novel low-resistance high-efficiency air filter according to claim 3, wherein the corona electrode and the ground electrode are integrated in an inner frame and integrally sleeved in the frame.

5. The novel low-resistance high-efficiency air filter as claimed in claim 1, further comprising a disinfection and purification module, wherein the disinfection and purification module is arranged on one side of the frame body close to the electrostatic fiber layer capable of charging, and is used for disinfecting and purifying filtered air.

6. The novel low-resistance high-efficiency air filter according to claim 6, wherein the disinfection and purification module comprises a casing with two through sides, one through side of the casing is opposite to the electrostatic charge fiber layer and is communicated with the frame body, an ultraviolet lamp is arranged on at least one inner side wall of the through casing, and the inner side wall of the through casing surrounds to form an air disinfection and purification space.

7. The novel low-resistance high-efficiency air filter as claimed in claim 7, wherein the disinfection and purification module further comprises a plasma generator, and the plasma generator and the ultraviolet lamp are arranged on different inner walls.

8. The novel low-resistance high-efficiency air filter as claimed in claim 6, wherein the disinfection and purification module further comprises a photocatalyst net, and the photocatalyst net is arranged at a side opening part of the casing, which is close to the through electrostatic chargeable fiber layer.

9. The novel low-resistance high-efficiency air filter as claimed in claim 6, wherein the disinfection and purification module further comprises a protection net, and the protection net is arranged at a through side opening part of the shell far away from the chargeable electrostatic fiber layer.

10. A purifying air conditioner, which is characterized by comprising an air conditioner main machine and a novel low-resistance high-efficiency air filter as claimed in any one of claims 1 to 9, wherein the low-resistance high-efficiency air filter is arranged in the air conditioner main machine or/and at a supply air outlet or/and at a return air outlet.