CN112081692A

CN112081692A - Air filter

Info

Publication number: CN112081692A
Application number: CN202010962127.7A
Authority: CN
Inventors: 伍智; 蔡衡; 刘超
Original assignee: Shanghai Fleetguard Filter Co ltd
Current assignee: Shanghai Fleetguard Filter Co ltd
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2020-12-15
Anticipated expiration: 2040-09-14
Also published as: CN112081692B

Abstract

The invention relates to the technical field of filters, and discloses an air filter. The air filter comprises a shell, a rotational flow component, a filter element and a dust sweeping component. The shell comprises a barrel body, a front cover and a rear cover, wherein the front cover and the rear cover are arranged at two ends of the barrel body, the barrel body is provided with an air inlet, the front cover is provided with an air outlet, and the rear cover is provided with a dust exhaust port. The filter element is arranged in the shell, and air in the shell passes through the filter element and then is discharged out of the shell through the air outlet. The cyclone assembly is used for enabling air entering the shell through the air inlet to flow towards the dust exhaust port and to rotate along the periphery of the filter element. The dust sweeping assembly comprises a dust sweeping blade, and the dust sweeping blade is rotatably arranged in the rear cover. The invention improves the filtering efficiency, prolongs the service life of the filter element, improves the practicability and the durability of the air filter and reduces the cost of maintaining the air filter.

Description

Air filter

Technical Field

The invention relates to the technical field of filters, in particular to an air filter.

Background

The main functions of the air intake system are to filter the air entering the engine, remove impurities such as dust and moisture in the air, and protect the engine from long-term stable operation. And air cleaner is air intake system's core component, in order to prolong air cleaner life better, most air cleaner all can set up the whirl subassembly in air cleaner's casing inside, like spinning disk or tangential air inlet structure etc. for impurity in the air that gets into the casing passes through centrifugal force and air separation, plays prefiltering's effect, and the impurity that has subsequently separated is through the air cleaner of discharging at air cleaner's dust exhaust mouth. However, under the action of the air flow inside the air filter, the impurities such as dust and moisture which are separated cannot be discharged through the dust discharge port of the air filter in time, and part of the separated impurities fall into the filter element of the air filter, so that the filtering efficiency is greatly reduced, the service life of the filter element is shortened, the practicability and durability of the air filter are reduced, and the cost for maintaining the air filter is improved.

Based on this, there is a need for an air cleaner that solves the above-mentioned problems.

Disclosure of Invention

The invention aims to provide an air filter, which improves the filtering efficiency, prolongs the service life of a filter element, improves the practicability and the durability of the air filter and reduces the cost of maintaining the air filter.

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

an air cleaner comprising:

the shell comprises a barrel body, a front cover and a rear cover, wherein the front cover and the rear cover are arranged at two ends of the barrel body;

the filter element is arranged in the shell, and air in the shell passes through the filter element and then is exhausted out of the shell through the air outlet;

a cyclone assembly for causing air entering the housing through the air inlet to flow toward the dust discharge port and to swirl along an outer periphery of the filter element;

sweep the dirt subassembly, including sweeping the dirt blade, sweep the dirt blade and rotate set up in the back lid.

Preferably, the whirl subassembly includes spinning disk and isolation cylinder, the isolation cylinder cover is established the filter core orientation the one end of gas outlet, the spinning disk sets up along circumference isolation cylinder orientation on the outer wall of the one end of back lid.

Preferably, the dust sweeping assembly further comprises a driving motor, and the dust sweeping blade is fixed on an output shaft of the driving motor.

Preferably, sweep the dirt subassembly and still include the mounting disc, the mounting disc is arranged in inside the casing, be provided with the installation department on the mounting disc, driving motor arranges in the installation department.

Preferably, the mounting disc is arranged at one end of the dust sweeping blade facing the cylinder, connecting arms are arranged on the circumferential side of the mounting disc along the radial direction, and the tail ends of the connecting arms are fixedly connected with the rear cover.

Preferably, a flange is arranged on the edge of the mounting plate along the circumferential direction, one end of the flange extends towards the front cover, and the end cover of the filter element, which faces one end of the rear cover, is arranged in the flange.

Preferably, the installation department includes the installation cover, the installation cover orientation the back lid opening, driving motor is fixed to be located in the installation cover, just driving motor's output shaft by the opening part stretch out with it is fixed to sweep the dirt blade.

Preferably, the filter element is provided with a containing groove in a concave manner on an end cover facing one end of the rear cover, and the containing groove is used for containing the mounting cover.

Preferably, the dust exhaust port is tangent to the rotation direction of the dust sweeping blade.

Preferably, the rear cover is detachably connected with the barrel.

The invention has the beneficial effects that: air enters the shell through the air inlet and flows to the dust exhaust port through rotation of the rotational flow component, impurities in the air move to the inner wall of the shell through centrifugal force, and the air is filtered by the filter element and then is exhausted from the shell through the air outlet. The dust sweeping blade is rotatably arranged on the rear cover, so that impurities such as dust separated from the shell can be discharged from the dust discharging port in time, the filtering efficiency is improved, the service life of the filter element is prolonged, the practicability and the durability of the air filter are improved, and the cost for maintaining the air filter is reduced.

Drawings

FIG. 1 is a cross-sectional view of an air cleaner provided by an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a dust-sweeping blade provided by an embodiment of the present invention;

FIG. 3 is a side view of a sweeping blade provided in accordance with an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a rear cover and a dust-sweeping assembly according to an embodiment of the present invention;

figure 5 is a cross-sectional view of a rear cover and dust sweep assembly provided by an embodiment of the present invention.

In the figure:

11. a barrel; 12. a front cover; 13. a rear cover; 14. an air inlet; 15. an air outlet; 16. a dust exhaust port;

2. a filter element; 21. accommodating grooves;

3. a swirl assembly; 31. a spinning disk; 32. an isolation cylinder;

41. sweeping dust blades; 411. a dust sweeping part; 412. a projection; 413. reinforcing ribs; 42. a drive motor; 43. mounting a disc; 431. a connecting arm; 432. flanging; 433. and (6) installing a cover.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious 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.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

At present, impurities such as dust and moisture which are separated from the inside of the air filter can not be discharged through a dust discharging port of the air filter in time, and the separated impurities of the part fall into a filter element of the air filter, so that the filtering efficiency is greatly reduced, the service life of the filter element is shortened, the practicability and the durability of the air filter are reduced, and the cost of maintaining the air filter is improved.

In order to solve the above problem, this embodiment provides an air cleaner, has improved filtration efficiency, has prolonged the life of filter core, has improved air cleaner's practicality and incorruptibility, has reduced the cost of maintaining air cleaner.

Specifically, as shown in fig. 1-5, the air cleaner includes a housing, a cyclone assembly 3, a filter element 2, and a dust sweep assembly. The casing comprises a cylinder 11, and a front cover 12 and a rear cover 13 at two ends of the cylinder 11, wherein the cylinder 11 is provided with an air inlet 14, the front cover 12 is provided with an air outlet 15, and the rear cover 13 is provided with a dust exhaust port 16. The filter element 2 is arranged in the shell, and air in the shell passes through the filter element 2 and then is exhausted out of the shell through the air outlet 15. The cyclone assembly 3 serves to circulate air entering the housing through the air inlet 14 toward the dust outlet 16 and along the outer periphery of the filter element 2. The dust sweeping assembly comprises a dust sweeping blade 41, and the dust sweeping blade 41 is rotatably arranged in the rear cover 13. Air enters the shell through the air inlet 14 and flows towards the dust exhaust port 16 through rotation of the rotational flow component 3, impurities in the air move to the inner wall of the shell through centrifugal force, and the air is filtered by the filter element 2 and then is exhausted out of the shell from the air outlet 15. The dust sweeping blade 41 is rotatably arranged on the rear cover 13, so that impurities such as dust separated from the shell can be discharged from the dust discharging port 16 in time, the filtering efficiency is improved, the service life of the filter element 2 is prolonged, the practicability and durability of the air filter are improved, and the cost for maintaining the air filter is reduced. In the present embodiment, the front cover 12 and the cylindrical body 11 are provided separately and are connected by screws. In other embodiments, the front cover 12 and the barrel 11 may be integrally provided, and are not limited herein.

In this embodiment, the housing and the filter element 2 are cylindrical and are arranged coaxially. The air outlet 15 is opened along the axial direction of the cylinder 11, and the air inlet 14 is opened along the radial direction of the cylinder 11.

Specifically, the cyclone assembly 3 includes a cyclone sheet 31 and a separator drum 32. Keep apart a 32 covers and establish filter core 2 towards the one end of gas outlet 15, and the spinning disk 31 sets up on the outer wall of the one end of lid 13 behind isolation cylinder 32 orientation along circumference, and spinning disk 31 makes the air along the rotatory flow in filter core 2's periphery, produces centrifugal force, makes impurity such as dust and air separation, has improved filtration efficiency. Keep apart a section of thick bamboo 32 and can make the position that air got into filter core 2 keep away from gas outlet 15, and the length of extension air process filter core 2 has improved filterable effect, has avoided the air to only get into filter core 2 from the position that filter core 2 is close to air inlet 14, has prolonged filter core 2's life, has improved air cleaner's practicality and incorruptibility, has reduced the cost of maintaining air cleaner. In this embodiment, the isolation cylinder 32 is integrally formed with the swirler 31.

In this embodiment, air inlet 14 corresponds to insulating cylinder 32, and after air passed through air inlet 14 and got into the casing, backward lid 13 through spinning disk 31 flows, and spinning disk 31 can make the air follow the rotatory flow in the periphery of filter core 2. It will be appreciated that the spinning disks 31 are disposed at an angle to the axis of the spacer 32.

Specifically, as shown in fig. 2 to 3, the dust sweeping blade 41 includes four blade arms connected in a cross shape, ends of the four blade arms are respectively connected to a dust sweeping portion 411, and the dust sweeping portion 411 is in a sheet shape and extends in an extending direction of the blade arms. Two protruding portions 412 are protruded from the side of the dust-sweeping portion 411 contacting the air, one protruding portion 412 is perpendicular to the blade arm, the other protruding portion 412 is disposed on the side of the dust-sweeping portion 411 facing the front cover 12, and the two protruding portions 412 are perpendicular to each other, so that when the dust-sweeping blade 41 rotates, the two protruding portions 412 can move the impurities such as dust toward the rear cover 13 and discharge the impurities out of the housing through the dust discharge port 16. The dust-sweeping portion 411 is further provided with a rib 413 connected between the dust-sweeping portion 411 and the protruding portion 412 to improve the structural strength of the dust-sweeping blade 41. In the present embodiment, the dust-sweeping blades 41 have the same rotational direction as the air in the casing.

Preferably, the dust exhaust port 16 is tangent to the rotation direction of the dust sweeping blade 41, which is beneficial to discharging impurities such as dust and the like out of the shell, improves the filtering efficiency, prolongs the service life of the filter element 2, improves the practicability and durability of the air filter, and reduces the cost of maintaining the air filter.

Preferably, sweep the dirt subassembly and still include driving motor 42, sweep dirt blade 41 and fix on driving motor 42's output shaft, provide power for sweeping the rotation of dirt blade 41, improve automatic degree, do benefit to impurity such as dust and discharge the casing fast, improved filtration efficiency.

It is understood that when the intake air amount of the intake port 14 is increased, the rotation speed of the air in the casing is also increased, and when the intake air amount of the intake port 14 is decreased, the rotation speed of the air in the casing is also decreased. In the present embodiment, the output rotation speed of the drive motor 42 can be adaptively adjusted according to the magnitude of the intake air amount.

Preferably, the dust sweeping assembly further comprises a mounting plate 43 for mounting the drive motor 42. Inside the casing was arranged in to mounting disc 43, was provided with the installation department on mounting disc 43, and in the installation department was arranged in to driving motor 42, be convenient for fix driving motor 42 inside the casing, improved air cleaner's compact structure degree. In the present embodiment, the mounting plate 43 has a circular shape.

Specifically, as shown in fig. 4 to 5, the mounting plate 43 is disposed at one end of the dust-sweeping blade 41 facing the cylinder 11, and a connecting arm 431 is radially disposed on a circumferential side of the mounting plate 43, and a tip end of the connecting arm 431 is fixedly connected to the rear cover 13. The mounting disc 43, the driving motor 42, the dust sweeping blade 41 and the rear cover 13 form a rear cover sub-assembly, the structural compactness is improved, when the air filter is assembled, the dust sweeping component can be mounted on the rear cover 13 firstly and then assembled with other parts, and the convenience of assembly is improved. The gap between the connecting arm 431 and the mounting plate 43 enables air to enter the dust sweeping assembly. In the present embodiment, six connecting arms 431 are provided in the radial direction on the circumferential side of the mounting plate 43.

In this embodiment, the rear cover 13 is detachably connected to the barrel 11. Since the dust sweeping assembly is fixed to the rear cover 13, convenience in replacement and maintenance is improved. Specifically, the rear cover 13 and the barrel 11 may be connected by a screw or by a snap.

Further, the edge of the mounting plate 43 is provided with a flange 432 in the circumferential direction, one end of the flange 432 extends toward the front cover 12, and the end cover of the filter element 2 facing the end of the rear cover 13 is placed in the flange 432, so that the positioning of the filter element 2 is facilitated when the air cleaner is assembled. In this embodiment, the flange 432 is annular.

Still further, the mounting portion includes a mounting cup 433. The mounting cover 433 is opened toward the rear cover 13, the driving motor 42 is fixed in the mounting cover 433, and an output shaft of the driving motor 42 is extended from the opening to be fixed with the dust-sweeping blade 41. The installation cover 433 can protect the driving motor 42, has also avoided driving motor 42 drunkenness when the operation, has improved the stability of air cleaner when using, is favorable to discharging impurity such as the dust that has separated in the casing in time from dust exhaust port 16, has improved filtration efficiency, has prolonged the life of filter core 2, has improved air cleaner's practicality and incorruptibility, has reduced the cost of maintaining air cleaner. In the present embodiment, one end of the filter element 2 is fixed to the front cover 12, and the other end abuts against the mounting plate 43.

Preferably, filter element 2 is equipped with holding tank 21 towards the end cover of the one end of back lid 13 on the concave, holding tank 21 is used for holding installation cover 433, compact structure nature has been improved, have certain limiting displacement to filter element 2 again, the assembly of the air cleaner of being convenient for, the stability in the air cleaner structure has also been guaranteed, thereby the stability of air cleaner when using has been improved, be favorable to discharging impurity such as the dust that has separated in the casing in time from dust exhaust port 16, the efficiency of filtration has been improved, the life of filter element 2 has been prolonged, the practicality and the incorruptibility of air cleaner have been improved, the cost of maintaining air cleaner has been reduced.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An air cleaner, comprising:

the dust collector comprises a shell, a dust collector and a dust collector, wherein the shell comprises a barrel (11) and a front cover (12) and a rear cover (13) which are arranged at two ends of the barrel (11), the barrel (11) is provided with an air inlet (14), the front cover (12) is provided with an air outlet (15), and the rear cover (13) is provided with a dust exhaust port (16);

the filter element (2) is arranged in the shell, and air in the shell passes through the filter element (2) and then is discharged out of the shell through the air outlet (15);

a cyclone assembly (3) for causing air entering the housing through the air inlet (14) to flow towards the dust discharge port (16) and to swirl around the periphery of the filter element (2);

the dust sweeping assembly comprises a dust sweeping blade (41), and the dust sweeping blade (41) is rotatably arranged in the rear cover (13).

2. The air cleaner according to claim 1, wherein the cyclone assembly (3) comprises a cyclone sheet (31) and a separating cylinder (32), the separating cylinder (32) is sleeved on one end of the filter element (2) facing the air outlet (15), and the cyclone sheet (31) is circumferentially arranged on an outer wall of one end of the separating cylinder (32) facing the rear cover (13).

3. The air cleaner according to claim 1, wherein the dust-sweeping assembly further comprises a driving motor (42), and the dust-sweeping vane (41) is fixed to an output shaft of the driving motor (42).

4. The air cleaner of claim 3, wherein the dust sweeping assembly further comprises a mounting plate (43), the mounting plate (43) is disposed inside the housing, a mounting portion is disposed on the mounting plate (43), and the driving motor (42) is disposed in the mounting portion.

5. The air cleaner according to claim 4, wherein the mounting plate (43) is disposed at an end of the dust-sweeping blade (41) facing the cylinder (11), and a connecting arm (431) is radially provided on a circumferential side of the mounting plate (43), and a tip end of the connecting arm (431) is fixedly connected to the rear cover (13).

6. The air cleaner according to claim 4, characterized in that the edge of the mounting plate (43) is provided with a flange (432) along the circumferential direction, one end of the flange (432) extends towards the front cover (12), and the end cover of the filter element (2) facing one end of the rear cover (13) is placed in the flange (432).

7. The air cleaner according to claim 4, wherein the mounting portion includes a mounting cover (433), the mounting cover (433) is opened toward the rear cover (13), the driving motor (42) is fixed in the mounting cover (433), and an output shaft of the driving motor (42) is protruded from the opening to be fixed to the dust-sweeping blade (41).

8. An air cleaner according to claim 7, wherein the end cap of the filter element (2) facing the end of the rear cover (13) is recessed with a receiving groove (21), the receiving groove (21) being adapted to receive the mounting cup (433).

9. An air cleaner according to any one of claims 1-8, wherein the dust discharge opening (16) is tangential to the rotation direction of the dust sweeping blade (41).

10. An air cleaner according to any one of claims 1-8, wherein the rear cover (13) is detachably connected to the cartridge (11).