HEPA filters and vacuum cleaners

Abstract

The present invention relates to a vacuum cleaner and a high-efficiency air filter. The vacuum cleaner comprises: a high-efficiency air filter, a shell, a separator and a motor arranged in the shell; the shell is provided with an air outlet, an air inlet and a mounting port, and the air outlet is arranged on the side wall of the mounting port; the high-efficiency air filter is detachably arranged at the mounting port of the shell, and the high-efficiency air filter comprises a support, and a first filter element and a second filter element respectively fixed on the support; the first filter element is arranged in a first air flow channel formed between the gas separation port of the separator and the air intake port of the motor to filter the gas discharged from the separator; the second filter element is arranged in a second air flow channel formed between the exhaust port of the motor and the air outlet to filter the gas discharged from the motor. The present invention can avoid the disassembly, assembly and cleaning of the high-efficiency air filter at the air inlet and the high-efficiency air filter at the air outlet one by one, which is beneficial to the cleaning of the high-efficiency air filter and can also reduce the preparation cost of the vacuum cleaner.

Description

Technical Field

[0001] The invention relates to a vacuum cleaner technology, in particular to a high-efficiency air filter and a vacuum cleaner. Background Art

[0002] At present, a high efficiency particulate air filter (HEPA) is usually installed at the air inlet and outlet of a vacuum cleaner. When a user cleans the high efficiency particulate air filter of a vacuum cleaner, the high efficiency particulate air filters at the air inlet and outlet need to be removed and cleaned one by one, which makes the cleaning of the high efficiency particulate air filter time-consuming and laborious. Summary of the invention

[0003] Based on this, it is necessary to provide a high-efficiency air filter and a dust collector in view of the time-consuming and laborious problem of cleaning the high-efficiency air filter.

[0004] A vacuum cleaner, comprising: a high-efficiency air filter, a shell, and a separator and a motor arranged in the shell;

[0005] The shell has an air outlet, an air inlet and a mounting opening, and the air outlet is opened on the side wall of the mounting opening;

[0006] The high efficiency air filter is detachably arranged at the mounting opening of the housing, and the high efficiency air filter comprises: a support member, and a first filter element and a second filter element respectively fixed on the support member;

[0007] The first filter element is arranged in a first air flow channel formed between the gas separation port of the separator and the air intake port of the motor to filter the gas discharged from the separator;

[0008] The second filter element is arranged in a second air flow channel formed between the exhaust port of the motor and the air outlet to filter the gas exhausted by the motor.

[0009] In one embodiment, the housing comprises: a first housing having the air inlet, a second housing covered at the first mounting opening of the first housing and having the air outlet and the second mounting opening, and a third housing connected to the first housing and the second housing; wherein the first mounting opening and the second mounting opening cooperate to form the mounting opening;

[0010] The separator is arranged in the first shell, the motor is arranged in the third shell, and the air intake port is communicated with the gas separation port through a front-end pipe, and the air exhaust port is communicated with the air outlet through a rear-end pipe;

[0011] The space between the first installation port of the first shell and the gas separation port and the tube cavity of the front-end pipe cooperate to form the first airflow channel, and the inner cavity of the second shell and the tube cavity of the rear-end pipe cooperate to form the second airflow channel.

[0012] In one embodiment, the support member includes: a support protrusion disposed at the first mounting opening and a support ring disposed at the second mounting opening and connected to a first end of the support protrusion;

[0013] The first filter element is connected to the second end of the support protrusion, and the first filter element extends into the first air flow channel along the axial direction of the support protrusion, wherein the first end and the second end of the support protrusion are relatively distributed;

[0014] The second filter element is connected to the support ring, a gap is defined between the second filter element and the support protrusion, and the second filter element extends into the second air flow channel along the axial direction of the support protrusion.

[0015] In one embodiment, a vent groove is provided on the outer wall of the separator, a first opening of the vent groove is connected to the gas separation port, and a second opening of the vent groove is connected to the air intake port of the motor through the front end pipe;

[0016] A port in the first filter element away from the supporting protrusion is installed at the first opening.

[0017] In one of the embodiments, a friction member is provided at a port of the first filter element away from the supporting protrusion, and the friction member is used to fix the high-efficiency air filter at the first opening of the ventilation groove by relying on its own friction force.

[0018] In one embodiment, the friction member is a conical rubber ring;

[0019] The friction member extends in a direction approaching the supporting protrusion, and a distance between the friction member and the first filter element gradually increases in a direction approaching the supporting protrusion.

[0020] In one of the embodiments, a disassembly groove is provided on one end of the supporting protrusion, and a rotating protrusion is arranged in the disassembly groove.

[0021] In one of the embodiments, the rotating protrusion is arranged in a straight line structure.

[0022] In one embodiment, the first filter element comprises: a first filter layer and a second filter layer arranged sequentially from the inside to the outside;

[0023] A plurality of supporting ribs are arranged between the first filter layer and the second filter layer at intervals along the circumferential direction.

[0024] In one of the embodiments, a windshield extending in a direction close to the supporting protrusion is provided in the second housing;

[0025] The second filter element is placed on the wind shield.

[0026] In one of the embodiments, a reinforcement plate is connected between the wind shield and the first shell, and the reinforcement plate has a plurality of through holes.

[0027] In one of the embodiments, a third sealing member is provided on the wall of the second filter element facing the wind shield, and the third sealing member is used to seal the gap between the second filter element and the wind shield.

[0028] In one embodiment, the second filter element is formed by bending filter paper.

[0029] In one of the embodiments, the vacuum cleaner further comprises: a handle disposed on the outer wall of the shell;

[0030] The air outlet is arranged on a side wall of the housing away from the handle.

[0031] In one of the embodiments, the exhaust port and the air intake port of the motor are distributed in sequence along a direction close to the air outlet.

[0032] A high efficiency air filter comprises: a support, and a first filter element and a second filter element respectively fixed on the support.

[0033] In one of the embodiments, the support member includes: a support protrusion and a support ring connected to a first end of the support protrusion;

[0034] The first filter element is connected to the second end of the supporting protrusion, and the first filter element extends along the axial direction of the supporting protrusion, wherein the first end and the second end of the supporting protrusion are relatively distributed;

[0035] The second filter element is connected to the support ring, a gap is provided between the second filter element and the support protrusion, and the second filter element and the first filter element extend in the same direction.

[0036] In one of the embodiments, a friction member is provided at a port of the first filter element away from the supporting protrusion, and the friction member is used to fix the high-efficiency air filter by relying on its own friction force.

[0037] In one embodiment, the friction member is a conical rubber ring;

[0038] The friction member extends in a direction approaching the supporting protrusion, and a distance between the friction member and the first filter element gradually increases in a direction approaching the supporting protrusion.

[0039] In one of the embodiments, a disassembly groove is provided on the first end of the supporting protrusion, and a rotating protrusion is arranged in the disassembly groove.

[0040] In one of the embodiments, the rotating protrusion is arranged in a straight line structure.

[0041] As for the vacuum cleaner and high-efficiency air filter as described above, the high-efficiency air filter can be detachably mounted at the mounting port of the shell, and the first filter element and the second filter element of the high-efficiency air filter can be respectively fixed in the first air flow channel and the second air flow channel of the vacuum cleaner, so as to filter the air discharged from the gas separation port of the separator and the air discharged from the exhaust port of the motor respectively. The high-efficiency air filter of this type of structure can replace the high-efficiency air filter at the air inlet and the high-efficiency air filter at the air outlet of the vacuum cleaner in the prior art, and there is no need to install two high-efficiency air filters separately on the vacuum cleaner. This not only avoids the disassembly and cleaning of the high-efficiency air filter at the air inlet and the high-efficiency air filter at the air outlet one by one, which is beneficial to the cleaning of the high-efficiency air filter, but also can reduce the preparation cost of the vacuum cleaner. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0043] Figure 1 A cross-sectional schematic diagram of a high efficiency air filter provided by one embodiment of the present invention;

[0044] Figure 2 A cross-sectional schematic diagram of a vacuum cleaner equipped with a high efficiency air filter provided by an embodiment of the present invention;

[0045] Figure 3 A schematic diagram of the internal gas flow direction of a vacuum cleaner equipped with a high efficiency air filter provided by an embodiment of the present invention;

[0046] Figure 4 A cross-sectional schematic diagram of a vacuum cleaner provided by an embodiment of the present invention without a high efficiency air filter installed;

[0047] Figure 5 A schematic structural diagram of a vacuum cleaner equipped with a high efficiency air filter provided in one embodiment of the present invention.

[0048] The descriptions of the various reference numerals in the accompanying drawings are as follows:

[0049] 100-high efficiency air filter; 110-support member, 111-supporting protrusion, 111a-disassembly groove, 1111-rotating protrusion, 112-support ring, 120-first filter element, 130-second filter element, 141-first sealing member, 142-second sealing member, 143-third sealing member, 150-friction member, A-first air flow channel, B-second air flow channel, 200-separator, 200a-gas separation port, 200b-ventilation Groove, 300-motor, 300a-intake port, 300b-exhaust port, 300-motor, 400-shell, 400a-air outlet, 400b-air inlet, 410-first shell, 410a-first mounting port, 420-second shell, 420a-second mounting port, 421-wind shield, 422-reinforcement plate, 430-third shell, 510-front end pipe, 520-rear end pipe, 600-handle, 700-power supply. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific implementation described herein is only used to explain the present invention and is not intended to limit the present invention.

[0051] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be a centered element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a centered element at the same time. On the contrary, when an element is referred to as being "directly on" another element, there is no intermediate element. On the contrary, when an element is referred to as being "directly" connected to another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0052] In the description of the present invention, it should be understood that the terms "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0053] like Figures 1 to 3As shown, an embodiment of the present invention provides a vacuum cleaner, which includes: a high-efficiency air filter 100, a housing 400, and a separator 200 and a motor 300 disposed in the housing 400; the housing 400 has an air outlet 400a, an air inlet 400b and a mounting port, and the air outlet 400a is opened on the side wall of the mounting port; wherein, as Figure 2 As shown, the high-efficiency air filter 100 is detachably arranged at the installation port of the shell 400, and the high-efficiency air filter 100 includes: a support member 110, and a first filter element 120 and a second filter element 130 respectively fixed on the support member 110; the first filter element 120 is arranged in a first air flow channel A formed between the gas separation port 200a of the separator 200 and the air intake port 300a of the motor 300 to filter the gas discharged from the separator 200; the second filter element 130 is arranged in a second air flow channel B formed between the exhaust port 300b of the motor 300 and the air outlet 400 to filter the gas discharged from the motor 300.

[0054] The following describes the internal gas flow direction of the vacuum cleaner equipped with the high efficiency air filter 100:

[0055] like Figure 3 As shown, outside air (i.e., air mixed with dust) enters the separator 200 through the air inlet 400b of the vacuum cleaner housing 400 for separation. The purified air is discharged into the first air flow channel A through the gas separation port 200a of the separator 200, and then is filtered by the first filter element 120 and sucked into the interior of the motor 300 through the air intake port 300a of the motor 300. The motor 300 discharges the purified air into the second air flow channel B through the exhaust port 300b, and then is filtered by the second filter element 130 and discharged from the air outlet 400a of the housing 100. It should be noted that Figure 3 The arrows shown in represent the direction of gas flow.

[0056] It can be seen that in the vacuum cleaner as described above, the high-efficiency air filter 100 is detachably arranged at the installation port of the shell 400, and the first filter element 120 and the second filter element 130 on the high-efficiency air filter 100 can be respectively fixed in the first air flow channel A and the second air flow channel B of the vacuum cleaner, so as to filter the air discharged from the gas separation port 200a of the separator 200 and the air discharged from the exhaust port 300b of the motor 300 respectively. The high-efficiency air filter 100 of this type of 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 there is no need to install two high-efficiency air filters separately on the vacuum cleaner. This not only avoids the disassembly and cleaning of the high-efficiency air filter at the air inlet 400b and the high-efficiency air filter at the air outlet 400a one by one, which is beneficial to the cleaning of the high-efficiency air filter 100, but also can reduce the preparation cost of the vacuum cleaner.

[0057] like Figure 4 As shown, in some embodiments of the present invention, the shell 400 includes: a first shell 410 having an air inlet 400b, a second shell 420 covered at the first mounting port 410a of the first shell 410 and having an air outlet 400a and a second mounting port 420a, and a third shell 430 connected to the first shell 410 and the second shell 420; wherein the first mounting port 410a and the second mounting port 420a cooperate to form a mounting port; the separator 200 is arranged in the first shell 410, the motor 300 is arranged in the third shell 430, and the air intake port 300a is connected to the gas separation port 200a through the front-end pipe 510, and the exhaust port 300b is connected to the air outlet 400a through the rear-end pipe 520; wherein the space between the first mounting port 410a of the first shell 410 and the gas separation port 200a and the tube cavity of the front-end pipe 510 cooperate to form the first airflow channel A, and the inner cavity of the second shell 420 and the tube cavity of the rear-end pipe 520 cooperate to form the second airflow channel B.

[0058] Furthermore, if Figure 4 As shown, in some embodiments of the present invention, the support member 110 includes: a support protrusion 111 provided at the first mounting port 410a and a support ring 112 provided at the second mounting port 420a and connected to the first end of the support protrusion 111; a first filter element 120 is connected to the second end of the support protrusion 111, and the first filter element 120 extends along the axial direction of the support protrusion 111 to the first air flow channel A, wherein the first end and the second end of the support protrusion 111 are relatively distributed; a second filter element 130 is connected to the support ring 112, and a gap is provided between the second filter element 130 and the support protrusion 111, and the second filter element 130 extends along the axial direction of the support protrusion 111 to the second air flow channel B (see Figure 2When installing the high efficiency air filter 100, the first filter element 120 can first be passed through the second installation opening 420a of the second housing 420 and the first installation opening 410a of the first housing 410 in sequence to enter the inner cavity of the first housing 410, and then the high efficiency air filter 100 is screwed inward until the support protrusion 111 of the high efficiency air filter 100 is installed at the first installation opening 410a of the first housing 410 and the support ring 112 is installed at the second installation opening 420a of the second housing 420.

[0059] Optionally, the support protrusion 111 is a cylindrical structure, and can be integrally formed with the support ring 112. The support protrusion 111 and the support ring 112 can be made of plastic.

[0060] Further, in some embodiments of the present invention, Figure 1 As shown, a first sealing member 141 is provided on the second end of the support protrusion 111, and the first sealing member 141 is used to seal the gap between the support protrusion 111 and the first mounting opening 410a; a second sealing member 142 is provided on the support ring 112, and the second sealing member 142 is used to seal the gap between the support ring 112 and the second mounting opening 420a. In this way, it is possible to prevent the gas in the first airflow channel A of the vacuum cleaner from directly flowing into the second airflow channel B from the gap between the support protrusion 111 and the first mounting opening 410a without entering the motor 300, and to prevent the outside air from entering the inner cavity of the housing 4 from the gap between the support ring 112 and the second mounting opening 420a.

[0061] Optionally, the bottom wall of the support protrusion 111 is arranged on the top wall of the first installation opening 410a, and the first sealing member 141 is installed on the bottom wall of the support protrusion 111; the bottom wall of the support ring 112 is arranged on the top wall of the second installation opening 420a, and the second sealing member 142 is installed on the bottom wall of the support ring 112. It can be understood that the outer diameter of the first filter element 120 is smaller than the outer diameter of the support protrusion 111, and the first sealing member 141 is located around the first filter element 120; the outer diameter of the second filter element 130 is smaller than the outer diameter of the support ring 112.

[0062] Optionally, the first sealing member 141 may be a sealing rubber ring, which may be bonded to the supporting protrusion 111 ; the second sealing member 142 may also be a sealing rubber ring, which may be bonded to the supporting ring 112 .

[0063] Furthermore, if Figure 2 and Figure 4As shown, in some embodiments of the present invention, a vent groove 200b is provided on the outer wall of the separator 200, a first opening of the vent groove 200b is connected with the gas separation port 200a, and a second opening of the vent groove 200b is connected with the air intake port 300a of the motor 300 through the front end pipe 510; the port in the first filter element 120 away from the support protrusion 111 is installed at the first opening.

[0064] Furthermore, in some embodiments of the present invention, a friction member 150 is provided at a port of the first filter element 120 away from the supporting protrusion 111 (see Figure 1 ), the friction member 150 is used to be fixed at the first opening by its own friction force. In this way, the friction force of the friction member 150 can be used to fix the high-efficiency air filter 100, which is convenient for the disassembly and assembly of the high-efficiency air filter 100.

[0065] Optionally, in some embodiments of the present invention, Figure 1 As shown, the friction member 150 is a conical rubber ring; the friction member 150 extends in the direction close to the support protrusion 111, and the distance between the friction member 150 and the first filter element 120 gradually increases in the direction close to the support protrusion 111. In this way, it is not only convenient for the friction member 150 to contact the first opening of the ventilation groove 200b, but also the contact area between the friction member 150 and the first opening of the ventilation groove 200b can be increased, thereby improving the installation firmness of the high-efficiency air filter 100. It can be understood that the connection between the first opening of the ventilation groove 200b and the wall of the separator 200 is smoothly transitioned.

[0066] Optionally, the friction member 150 can be nested on the first filter element 120 using a nesting mold, thereby achieving integrated molding with the first filter element 120 .

[0067] Furthermore, if Figure 1 As shown, in some embodiments of the present invention, one end of the support protrusion 111 has a disassembly groove 111a, and a rotating protrusion 1111 is arranged in the disassembly groove 111a. In this way, the user can hold the rotating protrusion 1111 to screw in the high-efficiency air filter 100, so as to firmly fit the friction member 150 to the first opening of the ventilation groove 200b, and also to easily screw the high-efficiency air filter 100 out of the housing 400 of the vacuum cleaner.

[0068] Optionally, the rotating protrusion 1111 is arranged in a straight line structure, so that it is not only convenient for the user to hold the rotating protrusion 1111, but also the structure of the rotating protrusion can be simplified.

[0069] Optionally, the rotating protrusion 1111 can be integrally formed with the side wall and the bottom wall of the disassembly groove 111a. The rotating protrusion 1111 and the supporting protrusion 111 can be made of plastic.

[0070] Specifically in some embodiments of the present invention, the first filter element 120 includes: a first filter layer and a second filter layer arranged in sequence from the inside to the outside; a plurality of support ribs are arranged circumferentially between the first filter layer and the second filter layer. In this way, the plurality of support ribs can increase the strength of the first filter element 120, so that when pressure is applied to the high-efficiency air filter 100 so that the friction member 150 is firmly attached to the first opening of the ventilation groove 200b, the first filter element 120 can be prevented from being deformed, thereby extending the service life of the high-efficiency air filter 100. It is understandable that the same end of the first filter layer, the second filter layer and the support ribs are all connected through a connector.

[0071] Optionally, the number of supporting ribs may be 4 to 6.

[0072] Optionally, the material of the first filter layer may be PP (Polypropylene Cotton, polyester) cotton, and the material of the second filter layer may be mesh gauze.

[0073] Optionally, the first filter element 120 can be nested on the supporting protrusion 111 by using a nesting mold, thereby achieving integrated molding with the supporting protrusion 111.

[0074] like Figure 2 As shown, in some embodiments of the present invention, a windshield 421 extending in a direction close to the support protrusion 111 is provided in the second housing 420; the second filter element 130 is placed on the windshield 421. In this way, the windshield 421 can support the second filter element 130, facilitate the fixation of the second filter element 130, and reduce the risk of the second filter element 130 falling off the support ring 112 during operation.

[0075] Furthermore, if Figure 2 As mentioned above, in some embodiments of the present invention, a third seal 143 is provided on the side wall of the second filter element 130 facing the wind shield 421 , and the third seal 143 is used to seal the gap between the second filter element 130 and the wind shield 421 .

[0076] Optionally, the third sealing member 143 may be a sealing rubber ring, which may be bonded to the bottom wall of the second filter element 130 .

[0077] Specifically in some embodiments of the present invention, the second filter element 130 is formed by bending filter paper, which not only ensures that the second filter element 130 has a certain strength, but also prevents the second filter element 130 from deforming when the wind shield 421 squeezes the third seal 143, thereby increasing the life of the second filter element 130.

[0078] Optionally, the second filter element 130 may be bonded to the support ring 112 .

[0079] Furthermore, if Figure 2 and Figure 5 As shown, in some embodiments of the present invention, a reinforcing plate 422 is connected between the windshield 421 and the first housing 410, and the reinforcing plate 422 has a plurality of through holes. In this way, the windshield 421 can be supported by the reinforcing plate 422. The reinforcing plate 422 can be fixed by integrated molding.

[0080] like Figure 2 As shown, in some embodiments of the present invention, the vacuum cleaner further includes: a handle 600 disposed on the outer wall of the housing 400; and an air outlet 400a disposed on a side wall of the housing 400 away from the handle 600. In this way, the air outlet 400a is away from the user to prevent the exhaust air from blowing directly onto the user.

[0081] Optionally, the air outlets 400a may be arranged in a strip-shaped structure distributed obliquely. The number of the air outlets 400a may be 6 to 8.

[0082] Optionally, the handle 600 is connected to the outer wall of the third shell 430 , for example, fixed by integral molding.

[0083] like Figure 2 As shown, in some embodiments of the present invention, the exhaust port 300b and the air intake port 300a of the motor 300 are sequentially distributed in a direction close to the air outlet 400a. In this way, the gas can be discharged from the motor 300 and then transported over a long distance before being discharged from the air outlet 400a, which can effectively reduce noise, improve user experience and reduce production costs.

[0084] like Figure 2 As shown, in some 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 wiring channel connected between the motor 300 and the power supply 700.

[0085] like Figure 1 As shown, another embodiment of the present invention further provides a high efficiency air filter. The high efficiency air filter 100 includes: a support member 110, and a first filter element 120 and a second filter element 130 respectively fixed on the support member 110.

[0086] The high-efficiency air filter as described above can be installed at the air inlet 400b and the air outlet 400a of the vacuum cleaner. In this way, it can replace the high-efficiency air filter at the air inlet 400b and the high-efficiency air filter at the air outlet 400a of the vacuum cleaner in the prior art. There is no need to install two high-efficiency air filters separately on the vacuum cleaner. This not only avoids the need to disassemble and clean the high-efficiency air filter at the air inlet 400b and the high-efficiency air filter at the air outlet 400a one by one, which is beneficial to the cleaning of the high-efficiency air filter 100, but also can reduce the preparation cost of the vacuum cleaner.

[0087] like Figure 1 As shown, in some embodiments of the present invention, the support member 110 includes: a support protrusion 111 and a support ring 112 connected to the first end of the support protrusion 111; a first filter element 120 is connected to the second end of the support protrusion 111, and the first filter element 120 extends along the axial direction of the support protrusion 111, wherein the first end and the second end of the support protrusion 111 are relatively distributed; a second filter element 130 is connected to the support ring 112, and there is a gap between the second filter element 130 and the support protrusion 111, and the second filter element 130 has the same extension direction as the first filter element 120.

[0088] Furthermore, if Figure 1 As shown, in some embodiments of the present invention, a friction member 150 is provided at the port of the first filter element 120 away from the supporting protrusion 111, and the friction member 150 is used to fix the high-efficiency air filter 100 by its own friction force. In this way, the friction force of the friction member 150 can be used to fix the high-efficiency air filter 100 on the vacuum cleaner, so that the high-efficiency air filter 100 can be easily disassembled and assembled.

[0089] Alternatively, if Figure 1 As shown, in some embodiments of the present invention, the friction member 150 is a conical rubber ring; the friction member 150 extends in a direction close to the support protrusion 111, and the distance between the friction member 150 and the first filter element 120 gradually increases in a direction close to the support protrusion 111. In this way, the contact area between the friction member 150 and the vacuum cleaner can be increased, thereby improving the installation firmness of the high-efficiency air filter 100.

[0090] Alternatively, if Figure 1 As shown, in some embodiments of the present invention, the first end of the support protrusion 111 has a disassembly groove 111a, and the disassembly groove 111a is provided with a rotating protrusion 1111. In this way, the user can hold the rotating protrusion 1111 to screw in the high-efficiency air filter 100, which is convenient for the installation and removal of the high-efficiency air filter 100.

[0091] Alternatively, if Figure 1As shown, in some embodiments of the present invention, the rotating protrusion 1111 is arranged in a straight line structure. In this way, it is not only convenient for the user to hold the rotating protrusion 1111, but also the structure of the rotating protrusion can be simplified.

[0092] Alternatively, if Figure 1 As shown, in some embodiments of the present invention, a first seal 141 is disposed on the second end of the support protrusion 111; a second seal 142 is disposed on the wall of the support ring 112 close to the first filter element 120; and a third seal 143 is disposed on the wall of the second filter element 130 close to the first filter element 120. In this way, the first seal 141, the second seal 142 and the third seal 143 can be used to seal the gap between the high-efficiency air filter 100 and the vacuum cleaner.

[0093] Optionally, the first sealing member 141 , the second sealing member 142 and the third sealing member 143 are sealing rubber rings.

[0094] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0095] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A vacuum cleaner, characterized in that: The vacuum cleaner comprises: a high-efficiency air filter (100), a housing (400), and a separator (200) and a motor (300) arranged in the housing (400); The housing (400) is provided with an air outlet (400a), an air inlet (400b) and a mounting opening, and the air outlet (400a) is provided on a side wall of the mounting opening; The high-efficiency air filter (100) is detachably arranged at the installation opening of the housing (400), and the high-efficiency air filter (100) comprises: a support member (110), and a first filter element (120) and a second filter element (130) respectively fixed on the support member (110); The first filter element (120) is arranged in a first air flow channel (A) formed between the gas separation port (200a) of the separator (200) and the air intake port (300a) of the motor (300) to filter the gas discharged from the separator (200); The second filter element (130) is arranged in a second air flow channel (B) formed between the exhaust port (300b) of the motor (300) and the air outlet (400a) to filter the gas exhausted by the motor (300); The housing (400) comprises: a first housing (410) having the air inlet (400b), a second housing (420) which is mounted on a first mounting opening (410a) of the first housing (410) and has the air outlet (400a) and a second mounting opening (420a), and a third housing (430) connected to the first housing (410) and the second housing (420); wherein the first mounting opening (410a) and the second mounting opening (420a) cooperate to form the mounting opening; The separator (200) is arranged in the first shell (410), the motor (300) is arranged in the third shell (430), and the air intake port (300a) is connected to the gas separation port (200a) through a front-end pipe (510), and the air exhaust port (300b) is connected to the air outlet (400a) through a rear-end pipe (520); The space between the first installation port (410a) of the first shell (410) and the gas separation port (200a) and the tube cavity of the front-end pipe (510) cooperate to form the first airflow channel (A), and the inner cavity of the second shell (420) and the tube cavity of the rear-end pipe (520) cooperate to form the second airflow channel (B); The support member (110) comprises: a support protrusion (111) arranged at the first installation opening (410a) and a support ring (112) arranged at the second installation opening (420a) and connected to a first end of the support protrusion (111); The first filter element (120) is connected to the second end of the supporting protrusion (111), and the first filter element (120) extends into the first air flow channel (A) along the axial direction of the supporting protrusion (111), wherein the first end and the second end of the supporting protrusion (111) are relatively distributed; 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 protrusion (111), and the second filter element (130) extends axially along the support protrusion (111) into the second air flow channel (B).

2. The vacuum cleaner according to claim 1, characterized in that: The separator (200) has a ventilation groove (200b) on its outer wall, a first opening of the ventilation groove (200b) is connected to the gas separation port (200a), and a second opening of the ventilation groove (200b) is connected to the air intake port (300a) via the front end pipe (510); A port in the first filter element (120) that is away from the supporting protrusion (111) is installed at the first opening.

3. The vacuum cleaner according to claim 2, characterized in that: A friction member (150) is provided at a port of the first filter element (120) away from the supporting protrusion (111), and the friction member (150) is used to be fixed at the first opening by relying on its own friction force.

4. The vacuum cleaner according to claim 3, characterized in that: The friction member (150) is a conical rubber ring; The friction member (150) extends in a direction approaching the supporting protrusion (111), and the distance between the friction member (150) and the first filter element (120) gradually increases in a direction approaching the supporting protrusion (111).

5. The vacuum cleaner according to claim 3, characterized in that: One end of the supporting protrusion (111) is provided with a disassembly groove (111a), and a rotating protrusion (1111) is arranged in the disassembly groove (111a).

6. The vacuum cleaner according to claim 5, characterized in that: The rotating protrusion (1111) is arranged in a straight line structure.

7. The vacuum cleaner according to claim 3, characterized in that: The first filter element (120) comprises: a first filter layer and a second filter layer arranged in sequence from the inside to the outside; A plurality of supporting ribs are arranged between the first filter layer and the second filter layer at intervals along the circumferential direction.

8. The vacuum cleaner according to claim 1, characterized in that: A windshield plate (421) extending in a direction close to the supporting protrusion (111) is arranged in the second shell (420); The second filter element (130) is placed on the wind shield (421).

9. The vacuum cleaner according to claim 8, characterized in that: A reinforcing plate (422) is connected between the wind shield plate (421) and the first shell (410), and the reinforcing plate (422) has a plurality of through holes.

10. The vacuum cleaner according to claim 8, characterized in that A third sealing member (143) is provided on the wall of the second filter element (130) facing the wind shield (421), and the third sealing member (143) is used to seal the gap between the second filter element (130) and the wind shield (421).

11. The vacuum cleaner according to claim 8, characterized in that: The second filter element (130) is formed by bending filter paper.

12. The vacuum cleaner according to any one of claims 1 to 11, characterized in that: The vacuum cleaner further comprises: a handle (600) arranged on the outer wall of the shell (400); The air outlet (400a) is arranged on a side wall of the housing (400) away from the handle (600).

13. The vacuum cleaner according to any one of claims 1 to 11, characterized in that: The exhaust port (300b) and the air intake port (300a) of the motor (300) are distributed in sequence in a direction close to the air outlet (400a).

14. A high efficiency air filter, characterized in that: Used in the vacuum cleaner according to any one of claims 1 to 13, the high-efficiency air filter (100) comprises: a support member (110), and a first filter element (120) and a second filter element (130) respectively fixed on the support member (110).

15. The high efficiency air filter according to claim 14, characterized in that: The support member (110) comprises: a support protrusion (111) and a support ring (112) connected to a first end of the support protrusion (111); The first filter element (120) is connected to the second end of the supporting protrusion (111), and the first filter element (120) extends along the axial direction of the supporting protrusion (111), wherein the first end and the second end of the supporting protrusion (111) are relatively distributed; The second filter core (130) is connected to the support ring (112), a gap is provided between the second filter core (130) and the support protrusion (111), and the second filter core (130) and the first filter core (120) extend in the same direction.

16. The high efficiency air filter according to claim 15, characterized in that: A friction piece (150) is provided at a port of the first filter element (120) away from the supporting protrusion (111), and the friction piece (150) is used to fix the high-efficiency air filter (100) by relying on its own friction force.

17. The high efficiency air filter according to claim 16, characterized in that: The friction member (150) is a conical rubber ring; The friction member (150) extends in a direction approaching the supporting protrusion (111), and the distance between the friction member (150) and the first filter element (120) gradually increases in a direction approaching the supporting protrusion (111).

18. The high efficiency air filter according to claim 16, characterized in that: The first end of the supporting protrusion (111) is provided with a disassembly groove (111a), and a rotating protrusion (1111) is arranged in the disassembly groove (111a).

19. The high efficiency air filter according to claim 18, characterized in that: The rotating protrusion (1111) is arranged in a straight line structure.

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