CN207315544U - Air cleaner - Google Patents

Abstract

The utility model discloses an air filter, which comprises a shell and a filter core arranged in the housing space inside the shell, the side of the shell is provided with an air inlet, and one end of the shell is provided with an air outlet, and the feature is that the filter core is provided with an air outlet The air outlet is connected with the through hole, and the accommodation space is divided into the outer air channel between the shell and the filter element and the inner air channel in the filter element. The outer air channel is also fixed with an air guide ring sleeved around the filter element. The outer surface of the outer surface is facing the air inlet and is provided with multiple air guide channels extending helically along its length, so that the air intake perpendicular to the air inlet is deflected and then forms a rotating air flow in the outer air duct, increasing the air intake of the engine while not Affects the filtering effect, and conveniently collects large particles of impurities through the dust collection tank, preventing large particles of impurities from accumulating on the outer surface of the filter element and affecting the filtering effect. The structure is simple, practical and convenient.

Description

air filter

technical field

The utility model relates to the field of air purifiers, in particular to an air filter.

Background technique

As a key component of the engine intake system, the air filter is used to filter out dust and impurities in the air, send clean air into the engine, reduce engine wear and prolong the service life of the engine. At present, the common air filter for automobiles generally adopts a sealed casing. The casing is provided with an air inlet and an air outlet. Because the filtration of the air filter will cause air intake resistance, generally the better the filter effect is, the greater the air intake resistance will be. Insufficient air intake of the engine will affect the working efficiency of the engine, but the reduction of air intake resistance will cause the filter effect to deteriorate, which will affect the efficiency of the engine. The working life of the engine, so the air filter needs to meet the appropriate intake resistance and filtering effect at the same time.

Utility model content

The technical problem to be solved by the utility model is to provide an air filter capable of improving air intake and filtering effect.

The technical scheme adopted by the utility model to solve the above-mentioned technical problems is: an air filter, comprising an axially and horizontally arranged casing, and a filter element arranged coaxially with the casing inside the casing, and the An air inlet is provided on the peripheral surface, one end of the housing is an air outlet and the other end is closed, and the air outlet is provided with an air outlet. The accommodating space in the casing is divided into an outer air duct between the housing and the filter element, and an inner air duct inside the filter element, the outer air duct communicates with the air inlet, and the inner air duct It communicates with the air outlet, and further includes an air guide ring sleeved on the outside of the end of the filter element close to the air inlet, and the air guide ring is located inside the air inlet.

Preferably, the outer surface of the air guide ring is provided with a plurality of air guide channels spirally extending along its length direction at intervals.

Preferably, the air filter further includes an air intake tube arranged outside the housing and communicating with the air inlet, the air inlet is arranged at an end of the peripheral surface of the housing close to the air outlet.

Preferably, the air intake tube includes a top cover, an air inlet piece and a pipe arranged in sequence, the top cover covers the air inlet piece, and the air inlet piece is a sheet body covered with grid holes, which A circle is arranged along the periphery of the top cover, and the center of the air inlet sheet is provided with an opening connected to the duct, and the other end of the duct is connected to the air inlet.

Preferably, the air intake piece extends from the edge of the top cover to the center of the top cover and away from the top cover.

Preferably, the other end of the housing is provided with an opening and is covered with a detachable end cover, and a dust collection groove is provided at the edge of the end cover, and the dust collection groove communicates with the external air duct.

Preferably, the end cover and the housing are fixed by a plurality of buckles, and the dust collection groove is perpendicular to the side of the housing and arranged in a direction opposite to the air inlet.

Preferably, one end of the air guide ring is close to the air outlet, and extends along the axial direction of the filter element toward the other end of the casing, and its extension length is greater than the axial outer diameter of the air inlet.

Compared with the prior art, the utility model has the advantage that the wind guide ring is arranged in the accommodation space inside the shell, and the air guide grooves arranged in the circumferential direction on the outer surface of the wind guide ring are used to make the air inlet perpendicular to the air inlet After the airflow is guided and deflected, it forms a rotating airflow in the outer air duct, so that it can fully and evenly cover the outer air duct, quickly and evenly contact more filtering areas, increase the air intake of the engine without affecting the filtering effect, and through the collector set at the dismantling end The dust tank facilitates the collection of large particles of impurities and prevents the accumulation of large particles of impurities on the outer surface of the filter element 3 to affect the filtering effect. The structure is simple, practical and convenient.

Description of drawings

Fig. 1 is a schematic diagram of an air filter according to an embodiment of the present invention.

Fig. 2 is a sectional view of the air filter of the embodiment of the present invention.

Fig. 3 is an exploded view of the air filter according to the embodiment of the present invention (the housing is omitted).

Detailed ways

The utility model is described in further detail below in conjunction with the accompanying drawings.

A kind of air cleaner as shown in Figure 1 and Figure 2, comprises the shell 2 that cylindrical shape is arranged axially and transversely, is arranged on the air intake tube 1 that connects shell 2 above shell 2, and is arranged in shell 2 internal accommodating space The cylindrical filter element 3, the air intake cylinder 1 includes a top cover 11, an air inlet sheet 12 and a pipe 13, the top cover 11 covers the top of the air inlet sheet 12, and the air inlet sheet 12 is a sheet body covered with grid meshes, from The edge of the top cover 11 extends obliquely downward toward the center of the top cover 11 to form a transitional space between the top cover 11 and the air inlet piece 12, and the lower end of the air inlet piece 12 is provided with an opening that expands vertically downward , for connecting the upper end of the pipeline 13.

The two ends of the shell 2 are respectively an air outlet 26 and a dismounting end 27. The air inlet tube 1 is arranged on the shell 2 on one side of the air outlet 26, and the center of the air outlet 26 is provided with an air outlet 25 for connecting to an external automobile. In the engine air intake pipeline, a plurality of buckles 51 are arranged at intervals along the circumferential direction on the opening edge of the dismantling end 27, and the end cover 5 is connected and fixed by the buckles 51. When all the buckles 51 are unlocked, the end cover 5 can be opened for easy replacement filter element 3. The surrounding surface of the casing 2 is provided with an air inlet 28 connecting the lower end of the pipeline 13 near the gas outlet 26, and the air inlet 28 and the pipeline 13 are fixed by welding. The clip 21 and the bracket 22 are used to strengthen the air filter and fix it inside the car. The air enters the transition space from the grid mesh of the air inlet sheet 12, then flows into the accommodation space inside the housing 2 through the duct 13 and the air inlet 28, and finally enters the engine air inlet pipeline from the air outlet 25 through the filtering effect of the filter core 3.

As shown in Figure 2 and Figure 3, the inside of the housing 2 is also provided with a wind guide ring 4, the outer diameter of the wind guide ring 4 is greater than the outer diameter of the filter core 3, so that the wind guide ring 4 can be sleeved on the outside of one end of the filter core 3, and the guide The wind ring 4 is set on the side of the air outlet 26 and extends towards the dismantling end 27 until the end surface exceeds the air inlet 28, preventing the air intake perpendicular to the air inlet 28 from blowing directly to the outer surface of the filter element 3, causing the air intake to be too concentrated and affect the filter element 3 filter effects. The middle part of the filter element 3 is provided with a through hole connected to the air outlet 25, and the two ends of the filter element 3 respectively extend to the air outlet end 26 and the disassembly end 27, so that the accommodation space inside the housing 2 is divided into an external air duct 24 between the filter element 3 and the housing 2 The inner air passage 23 and the outer air passage 24 in the filter element 3 are connected to the air inlet 28 , and the inner air passage is connected to the air outlet 25 . The outer surface of the wind guide ring 4 is evenly distributed with multiple sunken air guide channels 41 along the circumferential direction, and the air guide channels 41 are distributed on the air guide ring 4 in a spiral shape.

When the intake air flowing into the inner accommodation space of the housing 2 at the air inlet 28 blows the outer surface of the wind guide ring 4, the drainage effect of the air guide channel 41 forms a rotating air flow inclined at a certain angle to the air intake direction inside the outer air duct 24. , so that the inflowing air evenly covers the space of the outer air duct 24, fully contacts with the outer circumferential surface of the filter element 3, then enters the inner air duct 23 after being filtered by the filter element 3, and is discharged from the air outlet 25.

The end cover 5 is also provided with a dust collection groove 52 that protrudes from the peripheral surface of the casing 2. The opening of the dust collection groove 52 is connected to the outer air duct 24 and is located on the opposite side of the air inlet 28. Due to the rotating air flow in the outer air duct 24 There are large particles of impurities that cannot pass through the filter element 3, and will automatically gather in the dust collection tank 52 near the disassembly end 27 in the outer air duct 24 under the drive of the rotating airflow, so as to prevent the large particles of impurities from clogging the outer surface of the filter element and affecting the filtration. effect and the air intake of the engine, and it is convenient for the user to open the end cover 5 to clean the inside of the housing 2.

The utility model adopts the arrangement of the air guide ring 4 in the accommodation space inside the shell 2, and uses the air guide grooves 41 arranged spirally along the circumferential direction on the outer surface of the air guide ring 4 to make the air intake perpendicular to the air inlet 28 go through the guide deflection A swirling airflow is formed in the outer air duct 24, making it fully and uniformly cover the outer air duct 24, quickly and evenly contacting more filtering areas, increasing the air intake of the engine while not affecting the filtering effect, and through the collector set at the disassembly end 27 The dust tank facilitates the collection of large-particle impurities and prevents large-particle impurities from accumulating on the outer surface of the filter element 3 to affect the filtering effect, which is practical and convenient.

Although the preferred embodiments of the present invention have been described in detail above, it should be clearly understood that the present invention can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims (8)

1. a kind of air cleaner, including the axial shell (2) laterally set, and be arranged in the shell (2) with it is described outer The filter core (3) that shell (2) is coaxially disposed, the side face of the shell (2) are equipped with air inlet (28), and one end of the shell (2) is Outlet side (26) and the other end are closed, and the outlet side (26) is equipped with air outlet (25), it is characterised in that：In the filter core (3) Equipped with axially extending bore, the accommodating space in the shell (2) is separated into the shell (2) and the filter core by the filter core (3) (3) the interior air passage (23) of outer air duct (24) and the filter core (3) inside between, the outer air duct (24) and the air inlet (28) connect, the interior air passage (23) connect with the air outlet (25), further include be set in the filter core (3) it is close described in into Air-ducting ring (4) on the outside of air port (28) one end, the air-ducting ring (4) are located on the inside of the air inlet (28).

2. air cleaner as claimed in claim 1, it is characterised in that：It is arranged at intervals on the outer surface of the air-ducting ring (4) There is the wind-guiding conduit (41) that multiple tracks extends spirally along its length.

3. air cleaner as claimed in claim 2, it is characterised in that：Further include and be arranged on the outside of the shell (2) and connect Lead to the inlet cylinder (1) of the air inlet (28), the air inlet (28) is arranged on the shell (2) side face close to the air outlet (25) one end.

4. air cleaner as claimed in claim 3, it is characterised in that：The inlet cylinder (1) includes the head cover set gradually (11), inlet air piece (12) and pipeline (13), the head cover (11) are covered in above the inlet air piece (12), the inlet air piece (12) To be covered with the sheet body of grid mesh, the periphery of its along head cover (11) is provided with a circle, and the center of the inlet air piece (12), which is equipped with, to be connected The opening of the pipeline (13) is connect, the other end of the pipeline (13) is connected with the air inlet (28).

5. air cleaner as claimed in claim 4, it is characterised in that：The inlet air piece (12) is from the side of the head cover (11) Extend along the center toward the head cover (11) and the direction away from the head cover (11).

6. the air cleaner as described in any one in claim 1 to 5, it is characterised in that：The other end of the shell (2) Dust collecting trough (52), institute are additionally provided with equipped with opening and thereon covered with detachable end (5), the edge of the end cap (5) State dust collecting trough (52) and connect the outer air duct (24).

7. air cleaner as claimed in claim 6, it is characterised in that：The end cap (5) passes through setting with the shell (2) Multiple buckles (51) are fixed, and the dust collecting trough (52) is perpendicular to the shell (2) side and is arranged on the air inlet (28) Relative direction.

8. air cleaner as claimed in claim 1, it is characterised in that：Near outgassing end is leaned in one end of the air-ducting ring (4) (26), and along axial another extreme direction towards the shell (2) of the filter core (3) extend, its development length be more than it is described into The axial outside diameter in air port (28).