CN110731729A - High-efficiency air filter and dust collector - Google Patents

Abstract

The invention relates to a dust collector and a high-efficiency air filter, wherein the dust collector comprises a high-efficiency air filter, a shell, a separator and a motor, the separator and the motor are arranged in the shell, an air outlet, an air inlet and a mounting port are formed in the shell, the air outlet is formed in the side wall of the mounting opening, the high-efficiency air filter is detachably arranged at the mounting port of the shell and comprises a supporting piece, a filter element and a second filter element, the second filter element and the filter element are respectively fixed on the supporting piece, the second filter element is arranged in a air flow channel formed between the air separating port of the separator and the air suction port of the motor and is used for filtering air discharged by the separator, and the second filter element is arranged in a second air flow channel formed between the air exhaust port of the motor and the air outlet and is used for filtering air discharged by the motor.

Description

High-efficiency air filter and dust collector

Technical Field

The invention relates to the technology of dust collectors, in particular to high-efficiency air filters and a dust collector.

Background

At present, high efficiency air filters (HEPA) are usually installed at an air inlet and an air outlet of a dust collector, when a user cleans the high efficiency air filters of the dust collector, of the high efficiency air filters at the air inlet and the air outlet need to be detached and cleaned independently, and cleaning of the high efficiency air filters is time-consuming and labor-consuming.

Disclosure of Invention

Based on this, it is necessary to provide types of high efficiency air filters and vacuum cleaners for the problem that cleaning of the high efficiency air filters is time-consuming and labor-consuming.

A vacuum cleaner comprises a high-efficiency air filter, a shell, a separator and a motor, wherein the separator and the motor are arranged in the shell;

the shell is provided with an air outlet, an air inlet and a mounting opening, and the air outlet is formed in the side wall of the mounting opening;

the high-efficiency air filter is detachably arranged at the mounting opening of the shell and comprises a supporting piece, a filter element and a second filter element, wherein the filter element and the second filter element are respectively fixed on the supporting piece;

the filter element is arranged in a airflow channel formed between the gas separation port of the separator and the suction port of the motor so as to filter the gas discharged by the separator;

the second filter element is arranged in a second air flow channel formed between the air outlet of the motor and the air outlet so as to filter the air exhausted by the motor.

In embodiments, the housing comprises a housing with the air inlet, a second housing which is covered at a mounting port of the housing and is provided with the air outlet and a second mounting port, and a third housing which is connected with the housing and the second housing, wherein the mounting port and the second mounting port are matched to form the mounting port;

the separator is arranged in the th shell, the motor is arranged in the third shell, the air suction port is communicated with the air separation port through a front end pipeline, and the air exhaust port is communicated with the air outlet through a rear end pipeline;

wherein, the space between the installation port of the th shell and the gas separation port and the tube cavity of the front end pipeline are matched to form the th gas flow channel, and the inner cavity of the second shell and the tube cavity of the rear end pipeline are matched to form the second gas flow channel.

In embodiments, the support member comprises a support tab disposed at the th mounting opening and a support ring disposed at the second mounting opening and connected to the th end of the support tab;

the filter element is connected with the second end of the supporting lug, the filter element extends into the gas flow channel along the axial direction of the supporting lug, wherein the end and the second end of the supporting lug are distributed oppositely;

the second filter element is connected with the support ring, a gap is reserved between the second filter element and the support lug, and the second filter element extends to the second air flow channel along the axial direction of the support lug.

In embodiments, the outer wall of the separator is provided with a ventilation groove, the th opening of the ventilation groove is communicated with the gas separation port, and the second opening of the ventilation groove is communicated with the suction port of the motor through the front end pipeline;

the port in the cartridge distal to the support tab is mounted at the opening.

In embodiments, a friction piece is arranged at a port of the filter element far away from the supporting lug, and the friction piece is used for fixing the high-efficiency air filter at the opening of the ventilation groove by means of self friction force.

In of these embodiments, the friction member is a tapered rubber ring;

the friction piece extends along the direction close to the supporting lug, and the distance between the friction piece and the filter element is gradually increased along the direction close to the supporting lug.

In embodiments, the end of the supporting bump has a disassembling groove, and a rotating bump is arranged in the disassembling groove.

In embodiments, the rotary projection is arranged in -shaped structure.

In embodiments, the filter element comprises a filter layer and a second filter layer which are arranged in sequence from inside to outside;

a plurality of supporting ribs are arranged between the th filter layer and the second filter layer at intervals along the circumferential direction.

In of the embodiments, a wind deflector extending in a direction close to the support projection is provided in the second housing;

the second filter element is arranged on the wind shield.

In embodiments, a reinforcing plate is connected between the wind deflector and the th shell, and the reinforcing plate is provided with a plurality of through holes.

In embodiments, a third seal is provided on a wall of the second filter cartridge facing the air deflector, the third seal being for sealing a gap between the second filter cartridge and the air deflector.

In of these embodiments, the second filter element was folded through filter paper.

In embodiments, the vacuum cleaner further comprises a handle disposed on an outer wall of the housing;

the air outlet is arranged on the side wall, far away from the handle, of the shell.

In embodiments, the air outlet and the air inlet of the motor are sequentially distributed along the direction close to the air outlet.

A high efficiency air filter comprises a support member, a filter element and a second filter element which are respectively fixed on the support member.

In embodiments, the support comprises a support tab and a support ring connected to the end of the support tab;

the filter element is connected with the second end of the supporting lug, the filter element extends along the axial direction of the supporting lug, wherein the end and the second end of the supporting lug are distributed oppositely;

the second filter element is connected with the support ring, a gap is reserved between the second filter element and the support lug, and the extending direction of the second filter element is the same as that of the th filter element.

In embodiments, a friction member is disposed at a port of the filter element far away from the supporting lug, and the friction member is used for fixing the high efficiency air filter by means of self friction force.

In of these embodiments, the friction member is a tapered rubber ring;

the friction piece extends along the direction close to the supporting lug, and the distance between the friction piece and the filter element is gradually increased along the direction close to the supporting lug.

In embodiments, the end of the supporting projection has a disassembling groove, and a rotating projection is arranged in the disassembling groove.

In embodiments, the rotary projection is arranged in -shaped structure.

As above-mentioned dust catcher and high-efficient air cleaner, high-efficient air cleaner detachably installs the erection site department at the casing, and high-efficient air cleaner's the filter core, the second filter core can be fixed respectively in the air current passageway of dust catcher, in the second air current passageway, and then can filter the air by the gas separation mouth exhaust air of separator and by the exhaust port exhaust air of motor respectively, the high-efficient air cleaner of this kind of structure, can replace the high-efficient air cleaner of dust catcher air intake department and the high-efficient air cleaner of air outlet department among the prior art, need not to install two high-efficient air cleaner alone on the dust catcher, this not only can avoid carrying out dismouting, washing to the high-efficient air cleaner of air intake department and the high-efficient air cleaner of air outlet department, do benefit to high-efficient air cleaner's washing, and also can reduce the preparation cost of dust catcher.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic cross-sectional view of a high efficiency air filter according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a vacuum cleaner incorporating a HEPA filter according to an embodiment of the present invention;

FIG. 3 is a schematic view of the flow of air to the interior of a vacuum cleaner incorporating a HEPA filter according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of a vacuum cleaner without a HEPA filter according to embodiment of the present invention;

fig. 5 is a schematic structural diagram of a vacuum cleaner with a high efficiency air filter according to an embodiment of the present invention.

Wherein the various reference numbers in the drawings are described below:

100-high efficiency air filter, 110-support piece, 111-support projection, 111 a-disassembly groove, 1111-rotation projection, 112-support ring, 120- filter core, 130-second filter core, 141- sealing piece, 142-second sealing piece, 143-third sealing piece, 150-friction piece, A- air flow channel, B-second air flow channel, 200-separator, 200 a-air separation port, 200B-ventilation groove, 300-motor, 300 a-air suction port, 300B-air discharge port, 300-motor, 400-shell, 400 a-air outlet, 400B-air inlet, 410- shell, 410a- mounting port, 420-second shell, 420 a-second mounting port, 421-air baffle, 422-reinforcing plate, 430-second shell, 510-front end pipeline, 520-rear end pipeline, 600-handle, 700-power supply.

Detailed Description

For purposes of making the objects, aspects and advantages of the present invention more apparent, the present invention will now be described in detail with reference to the accompanying drawings and examples.

It is noted that when elements are referred to as being "secured to" another elements, they may be directly on the other elements or intervening elements may also be present, that when elements are referred to as being "connected" to another elements, they may be directly connected to another elements or intervening elements may be present.

In the description of the present invention, it is to be understood that the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner and are not to be construed as limiting the present invention.

As shown in fig. 1 to 3, an embodiment of the invention provides vacuum cleaner, which includes a high efficiency air filter 100, a housing 400, a separator 200 and a motor 300 arranged in the housing 400, wherein the housing 400 has an air outlet 400a, an air inlet 400B and a mounting opening, and the air outlet 400a is opened on a side wall of the mounting opening, the high efficiency air filter 100 is detachably arranged at the mounting opening of the housing 400, as shown in fig. 2, the high efficiency air filter 100 includes a support member 110, and a filter element 120 and a second filter element 130 respectively fixed on the support member 110, the filter element 120 is arranged in a air flow channel a formed between an air separation opening 200a of the separator 200 and an air inlet 300a of the motor 300 to filter air exhausted from the separator 200, and the second filter element 130 is arranged in a second air flow channel B formed between an air outlet 300B of the motor 300 and the air outlet 400 to filter air exhausted from the motor 300.

The following describes the direction of the internal air flow of the cleaner in which the high efficiency air filter 100 is installed:

as shown in fig. 3, the external air (i.e., the air with dust) enters the separator 200 from the air inlet 400B of the cleaner housing 400 for separation, wherein the purified air is discharged into the th air flow path a through the air separation port 200a of the separator 200, is filtered by the th filter element 120, and is sucked into the motor 300 through the air inlet 300a of the motor 300, the motor 300 discharges the purified air into the second air flow path B through the air outlet 300B, and is then discharged from the air outlet 400a of the housing 100 through the filtration of the second filter element 130, and it should be noted that the arrows shown in fig. 3 represent the air flow direction.

It can be seen that, in the vacuum cleaner as described above, the high efficiency air filter 100 is detachably disposed at the mounting opening of the housing 400, and the filter element 120 and the second filter element 130 on the high efficiency air filter 100 can be respectively fixed in the air flow passage a and the second air flow passage B of the vacuum cleaner, so as to respectively filter the air discharged from the air separation port 200a of the separator 200 and the air discharged from the air outlet 300B of the motor 300, and the high efficiency air filter 100 with such a structure can replace the high efficiency air filter 100 at the air inlet 400B and the high efficiency air filter 100 at the air outlet 400a of the vacuum cleaner in the prior art, and does not need to separately mount two high efficiency air filters on the vacuum cleaner, which not only can avoid dismounting and cleaning the high efficiency air filter at the air inlet 400B and the high efficiency air filter at the air outlet 400a , and is beneficial to cleaning the high efficiency air filter 100, but also can reduce the manufacturing cost of the vacuum cleaner.

As shown in FIG. 4, in embodiments of the present invention, the housing 400 comprises a housing 410 having an air inlet 400B, a second housing 420 covering the mounting port 410a of the housing 410 and having an air outlet 400a and a second mounting port 420a, and a third housing 430 connected to the housing 410 and the second housing 420, wherein the mounting port 410a and the second mounting port 420a are matched to form the mounting ports, the separator 200 is disposed in the housing 410, the motor 300 is disposed in the third housing 430, the air inlet 300a is communicated with the air separation port 200a through the front end pipe 510, the air outlet 300B is communicated with the air outlet 400a through the rear end pipe 520, wherein the space between the mounting port 410a and the air separation port 200a of the housing 410 and the lumen of the front end pipe 510 are matched to form an air flow passage A, and the inner cavity of the second housing 420 is matched with the lumen of the rear end pipe 520 to form the second air flow passage B.

in some embodiments of the present invention, as shown in fig. 4, in the embodiments of the present invention, the support member 110 includes a support protrusion 111 disposed at the mounting opening 410a and a support ring 112 disposed at the second mounting opening 420a and connected to the th end of the support protrusion 111, the th filter element 120 is connected to the second end of the support protrusion 111, and the th filter element 120 extends into the airflow channel a along the axial direction of the support protrusion 111, wherein the th end and the second end of the support protrusion 111 are distributed oppositely, the second filter element 130 is connected to the support ring 112, the second filter element 130 has a gap with the support protrusion 111, and the second filter element 130 extends into the second airflow channel B along the axial direction of the support protrusion 111 (see fig. 2). in the installation of the hepa filter 100, the th filter element 120 sequentially passes through the second mounting opening 420a of the second housing 420 and the mounting opening 410a of the th housing 410 and enters the inner cavity of the housing 410, and is continuously installed in the support ring 410a of the second housing 410 and the support protrusion , and the second housing 410a is installed at the second mounting opening of the support protrusion 410 a.

Alternatively, the supporting protrusions 111 may be cylindrical structures, and may be formed integrally with the supporting ring 112 , wherein the supporting protrusions 111 and the supporting ring 112 may be made of plastic.

in some embodiments of the invention , as shown in FIG. 1, the second end of the supporting protrusion 111 is provided with a th sealing element 141, the th sealing element 141 is used for sealing the gap between the supporting protrusion 111 and the th mounting opening 410a, the supporting ring 112 is provided with a second sealing element 142, and the second sealing element 142 is used for sealing the gap between the supporting ring 112 and the second mounting opening 420 a. thus, the air in the th air flow channel A of the vacuum cleaner is prevented from flowing into the second air flow channel B directly from the gap between the supporting protrusion 111 and the mounting opening 410a without entering into the motor 300, and the external air is prevented from entering into the inner cavity of the housing 4 from the gap between the supporting ring 112 and the second mounting opening 420 a.

Alternatively, the bottom wall of the support tab 111 is disposed on the top wall of the th mounting opening 410a, the th seal member 141 is mounted on the bottom wall of the support tab 111, the bottom wall of the support ring 112 is disposed on the top wall of the second mounting opening 420a, the second seal member 142 is mounted on the bottom wall of the support ring 112, it is understood that the outer diameter of the th filter cartridge 120 is smaller than the outer diameter of the support tab 111, and the th seal member 141 is positioned around the th filter cartridge 120, and the outer diameter of the second filter cartridge 130 is smaller than the outer diameter of the support ring 112.

Alternatively, the -th seal 141 may be a rubber seal ring that is bonded to the support tab 111 and the second seal 142 may be a rubber seal ring that is bonded to the support ring 112.

furthermore, as shown in fig. 2 and 4, in the embodiments of the present invention, the outer wall of the separator 200 has a vent groove 200b, the th opening of the vent groove 200b is communicated with the gas separation port 200a, the second opening of the vent groove 200b is communicated with the suction port 300a of the motor 300 through the front end pipe 510, and the port of the th filter element 120 far from the support lug 111 is installed at the th opening.

further, in the embodiments of the present invention, a friction member 150 (see fig. 1) is disposed at a port of the filter element 120 away from the supporting protrusion 111, and the friction member 150 is fixed at the opening by its own friction force, so that the friction force of the friction member 150 can be used to fix the hepa filter 100, which facilitates the assembly and disassembly of the hepa filter 100.

Alternatively, in some embodiments of the invention, as shown in FIG. 1, the friction member 150 is a tapered rubber ring, the friction member 150 extends in a direction close to the supporting protrusion 111, and the distance between the friction member 150 and the -th filter element 120 gradually increases in a direction close to the supporting protrusion 111. thus, not only the friction member 150 is in contact with the -th opening of the ventilation groove 200b, but also the contact area between the friction member 150 and the -th opening of the ventilation groove 200b is increased, so as to improve the installation firmness of the HEPA filter 100.

Alternatively, friction member 150 may be nested on th cartridge 120 using a sleeve mold, which may be integrally molded with of th cartridge 120.

furthermore, as shown in FIG. 1, in the embodiments of the present invention, the of the supporting protrusion 111 has a mounting recess 111a and a rotation protrusion 1111 is disposed in the mounting recess 111 a. thus, the user can hold the rotation protrusion 1111 to rotate the HEPA filter 100, so as to firmly attach the friction member 150 to the opening of the ventilation recess 200b, and to rotate the HEPA filter 100 out of the housing 400 of the vacuum cleaner.

The rotary protrusion 1111 may be optionally configured as an -shaped structure, which not only facilitates the user to hold the rotary protrusion 1111, but also simplifies the structure of the rotary protrusion.

Alternatively, the rotation protrusion 1111 may be formed integrally with the side wall and the bottom wall of the mounting/dismounting groove 111a, wherein the rotation protrusion 1111 and the supporting protrusion 111 may be made of plastic.

Specifically, in embodiments of the present invention, the th filter element 120 includes a th filter layer and a second filter layer which are sequentially arranged from inside to outside, and a plurality of support ribs are circumferentially arranged between the th filter layer and the second filter layer at intervals, so that the plurality of support ribs can increase the strength of the th filter element 120, and thus, when pressure is applied to the high efficiency air filter 100 to firmly attach the friction member 150 to the th opening of the ventilation groove 200b, the th filter element 120 can be prevented from deforming, and the service life of the high efficiency air filter 100 can be further prolonged.

Optionally, the number of the supporting ribs may be 4 to 6.

Optionally, the filter layer may be made of PP (Polypropylene Cotton) Cotton, and the second filter layer may be made of mesh gauze.

Alternatively, the filter element 120 can be nested on the support tab 111 using a sleeve mold, thereby achieving integration with the support tab 111.

As shown in fig. 2, in embodiments of the present invention, a wind deflector 421 is disposed in the second housing 420 and extends in a direction close to the supporting protrusion 111, and the second filter element 130 is disposed on the wind deflector 421, so that the wind deflector 421 can support the second filter element 130, thereby facilitating the fixing of the second filter element 130 and reducing the risk of the second filter element 130 falling off from the supporting ring 112 during the operation.

, in embodiments of the present invention, as shown in fig. 2, a third sealing member 143 is disposed on a side wall of the second filter element 130 facing the wind deflector 421, and the third sealing member 143 is used to seal a gap between the second filter element 130 and the wind deflector 421.

Alternatively, the third seal 143 may be a rubber seal ring that is bonded to the bottom wall of the second cartridge 130.

Specifically, in the embodiments of the present invention, the second filter element 130 is formed by bending filter paper, so that not only the strength of of the second filter element 130 can be ensured, but also the deformation of the second filter element 130 during the process of pressing the third sealing member 143 by the wind shielding plate 421 can be avoided, and the service life of the second filter element 130 can be further prolonged.

Alternatively, the second filter element 130 can be bonded to the support ring 112.

further, as shown in FIGS. 2 and 5, in some embodiments of the present invention, a reinforcing plate 422 is connected between the wind deflector 421 and the th casing 410, and the reinforcing plate 422 has a plurality of through holes, so that the wind deflector 421 can be supported by the reinforcing plate 422, wherein the reinforcing plate 422 can be fixed by forming integrally.

As shown in figure 2, in embodiments of the invention, the cleaner further comprises a handle 600 disposed on the outer wall of the housing 400, and the outlet 400a is disposed on a side wall of the housing 400 remote from the handle 600, such that the outlet 400a is remote from the user and does not blow exhaust air directly on the user.

Alternatively, the air outlets 400a may be arranged in a stripe structure distributed diagonally. The number of the air outlets 400a may be 6 to 8.

Alternatively, the handle 600 is attached to the outer wall of the third housing 430, for example, by integrally molding .

As shown in fig. 2, in embodiments of the present invention, the air outlet 300b and the air inlet 300a of the motor 300 are sequentially distributed along a direction close to the air outlet 400a, so that the air can be discharged by the motor 300, transported for a long distance, and then discharged by the air outlet 400a, which can effectively reduce noise, improve user experience, and reduce production cost.

As shown in FIG. 2, in embodiments of the present invention, the vacuum cleaner further includes a power supply 700 electrically connected to the motor 300, wherein the handle 600 has a wire path that communicates between the motor 300 and the power supply 700.

As shown in fig. 1, another embodiment of the present invention further provides high efficiency air filter, wherein the high efficiency air filter 100 includes a support member 110, and a filter element 120 and a second filter element 130 respectively fixed to the support member 110.

The efficient air filter can be installed at the air inlet 400b and the air outlet 400a of the dust collector, so that the efficient air filter at the air inlet 400b and the efficient air filter at the air outlet 400a of the dust collector in the prior art can be replaced, two efficient air filters do not need to be installed on the dust collector independently, the efficient air filter at the air inlet 400b and the efficient air filter at the air outlet 400a can be prevented from being dismounted and cleaned by , the cleaning of the efficient air filter 100 is facilitated, and the manufacturing cost of the dust collector can be reduced.

As shown in FIG. 1, in embodiments of the present invention, the support member 110 includes a support lug 111 and a support ring 112 connected to a end of the support lug 111, a th filter element 120 is connected to a second end of the support lug 111, the th filter element 120 extends along an axial direction of the support lug 111, wherein the th end and the second end of the support lug 111 are distributed oppositely, the second filter element 130 is connected to the support ring 112, a gap is provided between the second filter element 130 and the support lug 111, and the second filter element 130 and the th filter element 120 extend in the same direction.

in some embodiments of the present invention, as shown in fig. 1, a friction member 150 is disposed at a port of the th filter element 120 away from the supporting protrusion 111, and the friction member 150 is used to fix the hepa filter 100 by its own friction force, so that the friction force of the friction member 150 can be used to fix the hepa filter 100 on the vacuum cleaner, which facilitates the assembly and disassembly of the hepa filter 100.

Alternatively, as shown in fig. 1, in embodiments of the present invention, the friction member 150 is a tapered rubber ring, the friction member 150 extends in a direction close to the supporting protrusion 111, and the distance between the friction member 150 and the filter element 120 gradually increases in a direction close to the supporting protrusion 111, so that the contact area between the friction member 150 and the vacuum cleaner can be increased, and the installation firmness of the high efficiency air filter 100 can be improved.

Alternatively, as shown in FIG. 1, in embodiments of the present invention, the supporting protrusion 111 has a mounting/dismounting groove 111a at the end, and a rotating protrusion 1111 is disposed in the mounting/dismounting groove 111 a. thus, a user can rotate the rotating protrusion 1111 by hand to screw in the HEPA filter 100, which facilitates the mounting/dismounting of the HEPA filter 100.

Alternatively, as shown in FIG. 1, in embodiments of the present invention, the rotation protrusion 1111 is configured to have a -shaped structure, which not only facilitates the user to hold the rotation protrusion 1111 with his hand, but also simplifies the structure of the rotation protrusion.

Optionally, as shown in FIG. 1, in embodiments of the present invention, a seal 141 is provided on the second end of the support tab 111, a second seal 142 is provided on the wall of the support ring 112 adjacent to the filter insert 120, and a third seal 143 is provided on the wall of the second filter insert 130 adjacent to the filter insert 120. thus, the gap between the HEPA filter 100 and the vacuum cleaner can be sealed with the seal 141, the second seal 142, and the third seal 143.

Optionally, the th, second, and third seals 141, 142, 143 are rubber sealing rings.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

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 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 (21)

1, kinds of dust collectors, which are characterized by comprising a high-efficiency air filter (100), a shell (400), a separator (200) and a motor (300), wherein the separator (200) and the motor are arranged in the shell (400);

the shell (400) is provided with an air outlet (400a), an air inlet (400b) and a mounting opening, and the air outlet (400a) is formed in the side wall of the mounting opening;

the high-efficiency air filter (100) is detachably arranged at the mounting port of the shell (400), and the high-efficiency air filter (100) comprises a support piece (110), and a -th filter element (120) and a second filter element (130) which are respectively fixed on the support piece (110);

the th filter element (120) is arranged in a th airflow channel (A) formed between the gas separation port (200a) of the separator (200) and the suction port (300a) of the motor (300) to filter the gas discharged by the separator (200);

the second filter element (130) is disposed in a second air flow channel (B) formed between an air outlet (300B) of the motor (300) and the air outlet (400a) to filter air exhausted from the motor (300).

2. The vacuum cleaner as claimed in claim 1, wherein the housing (400) comprises an th housing (410) having the inlet vent (400b), a second housing (420) covering the th mounting port (410a) of the th housing (410) and having the outlet vent (400a) and the second mounting port (420a), and a third housing (430) connected to the th housing (410) and the second housing (420), wherein the th mounting port (410a) and the second mounting port (420a) are engaged to form the mounting port;

the separator (200) is disposed in the th casing (410), the motor (300) is disposed in the third casing (430), and the suction port (300a) communicates with the gas separation port (200a) through a front end duct (510), and the exhaust port (300b) communicates with the exhaust port (400a) through a rear end duct (520);

wherein, the space between the mounting port (410a) of the -th casing (410) and the gas separation port (200a) and the lumen of the front end pipe (510) are matched to form the -th gas flow passage (A), and the inner cavity of the second casing (420) and the lumen of the rear end pipe (520) are matched to form the second gas flow passage (B).

3. The vacuum cleaner as claimed in claim 2, wherein the supporter (110) comprises a supporting protrusion (111) provided at the th mounting hole (410a) and a supporting ring (112) provided at the second mounting hole (420a) and connected to a th end of the supporting protrusion (111);

the filter element (120) is connected with the second end of the supporting lug (111), the filter element (120) extends into the gas flow channel (A) along the axial direction of the supporting lug (111), wherein the end and the second end of the supporting lug (111) are distributed oppositely;

the second filter element (130) is connected with the support ring (112), a gap is formed between the second filter element (130) and the support lug (111), and the second filter element (130) extends into the second air flow channel (B) along the axial direction of the support lug (111).

4. A vacuum cleaner according to claim 3, wherein the outer wall of the separator (200) is provided with a ventilation groove (200b), the th opening of the ventilation groove (200b) is communicated with the air separation port (200a), the second opening of the ventilation groove (200b) is communicated with the air suction port (300a) through the front end pipe (510);

the port in the filter cartridge (120) distal to the support tab (111) is mounted at the opening.

5. The vacuum cleaner as claimed in claim 4, wherein a friction member (150) is disposed at a port of the filter element (120) far from the supporting projection (111), and the friction member (150) is used for being fixed at the opening by means of self friction.

6. A vacuum cleaner according to claim 5, characterized in that the friction member (150) is a conical rubber ring;

the friction member (150) extends in a direction approaching the support protrusion (111), and the distance between the friction member (150) and the filter cartridge (120) gradually increases in the direction approaching the support protrusion (111).

7. The vacuum cleaner as claimed in claim 5, wherein the end of the supporting protrusion (111) has a mounting/dismounting groove (111a), and a rotating protrusion (1111) is provided in the mounting/dismounting groove (111 a).

8. The vacuum cleaner according to claim 7, characterized in that the turning projection (1111) is arranged in an -shaped configuration.

9. The vacuum cleaner of claim 5, wherein the th filter cartridge (120) includes, in order from inside to outside, a th filter layer and a second filter layer;

a plurality of supporting ribs are arranged between the th filter layer and the second filter layer at intervals along the circumferential direction.

10. A vacuum cleaner according to claim 3, wherein a wind deflector (421) extending in a direction close to the support projection (111) is provided in the second housing (420);

the second filter element (130) is arranged on the wind shield (421).

11. The vacuum cleaner as claimed in claim 10, wherein a reinforcing plate (422) is connected between the wind guard (421) and the -th casing (410), and the reinforcing plate (422) has a plurality of through holes.

12. The vacuum cleaner as claimed in claim 10, characterized in that a third seal (143) is arranged on a wall of the second filter insert (130) facing the wind deflector (421), the third seal (143) being configured to seal a gap between the second filter insert (130) and the wind deflector (421).

13. The vacuum cleaner as claimed in claim 10, wherein the second filter element (130) is formed by folding filter paper.

14. The vacuum cleaner according to any one of claims 1 to 13 to , further comprising a handle (600) disposed on an outer wall of the housing (400);

the air outlet (400a) is arranged on the side wall of the shell (400) far away from the handle (600).

15. The vacuum cleaner as claimed in any one of claims 1 to 13 to , wherein the air outlet (300b) and the air inlet (300a) of the motor (300) are sequentially distributed in a direction approaching the air outlet (400 a).

16, , wherein the high efficiency air filter (100) comprises a support member (110), a filter element (120) and a second filter element (130) fixed on the support member (110).

17. The HEPA filter according to claim 16, wherein the supporter (110) comprises a supporting lug (111) and a supporting ring (112) connected to an -th end of the supporting lug (111);

the filter element (120) is connected with the second end of the supporting lug (111), the filter element (120) extends along the axial direction of the supporting lug (111), wherein the end and the second end of the supporting lug (111) are distributed oppositely;

the second filter element (130) is connected with the support ring (112), a gap is reserved between the second filter element (130) and the support lug (111), and the second filter element (130) and the -th filter element (120) extend in the same direction.

18. The hepa filter according to claim 17, wherein a friction member (150) is disposed at a port of said filter element (120) away from said supporting protrusion (111), said friction member (150) being used for fixing said hepa filter (100) by its own friction force.

19. The highly efficient air filter of claim 18 wherein the friction member (150) is a tapered rubber ring;

the friction member (150) extends in a direction approaching the support protrusion (111), and the distance between the friction member (150) and the filter cartridge (120) gradually increases in the direction approaching the support protrusion (111).

20. The high efficiency air filter of claim 18, wherein the th end of the supporting protrusion (111) has a mounting/dismounting groove (111a), and the mounting/dismounting groove (111a) is provided with a rotating protrusion (1111).

21. The high efficiency air filter of claim 20 wherein the swirl tabs (1111) are arranged in an -shaped configuration.

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