CN214533314U

CN214533314U - Air filter air inlet device with good noise reduction effect

Info

Publication number: CN214533314U
Application number: CN202120158750.7U
Authority: CN
Inventors: 杨程
Original assignee: Tianjin Yulong Haotian Automobile Filter Co ltd
Current assignee: Tianjin Yulong Haotian Automobile Filter Co ltd
Priority date: 2021-01-21
Filing date: 2021-01-21
Publication date: 2021-10-29
Anticipated expiration: 2031-01-21

Abstract

The utility model relates to an air filter air inlet unit that noise reduction effect is good. The filter comprises an upper shell and a lower shell which are mutually butted and buckled, a filter element is arranged in a space formed by the upper shell and the lower shell, a pre-filtering element positioned below the filter element is arranged in the lower shell, and the pre-filtering element comprises a plurality of groups of grid units; an air inlet pipe section communicated with the inner cavity of the lower shell is arranged on the lower shell, an air inlet hose is connected to the air inlet pipe section, and an air inlet assembly is connected to the air inlet hose; part of the bottom surface and/or part of the side wall of the lower shell are/is inwards sunken to form a curved surface; the air inlet assembly comprises an air inlet bent pipe connected with an air inlet hose, and the air inlet bent pipe is connected with a wavelength tube and a resonant cavity which are communicated with the inner cavity of the air inlet bent pipe. The utility model discloses can reach the noise that produces in the effectual reduction course of work, improve the dirt effect of straining.

Description

Air filter air inlet device with good noise reduction effect

Technical Field

The utility model belongs to the technical field of car air intake system, especially, relate to an air cleaner air inlet unit that noise reduction effect is good.

Background

Along with the development of social economy, the living standard of people is greatly improved, and the consumption level of people is gradually improved. Automobiles are becoming increasingly popular as a primary vehicle in people's lives. The automobile engine is the heart of automobile engineering machinery, and the air inlet system is the artery of the automobile engine, and the main function of the engine is to convey clean, dry, sufficient and stable air for the engine to meet the requirement of the engine, so that the abnormal abrasion of the engine caused by the fact that impurities and large-particle dust in the air enter a combustion chamber of the engine is avoided.

The automobile air inlet system mainly comprises an air filter assembly, an air filter air inlet pipeline component, an air filter air outlet pipeline component and a crankcase ventilation pipe.

With the continuous improvement of living standard, people have higher and higher requirements on the sound quality of automobiles, the noise of an air intake system is one of the main noise sources of the automobiles, and how to reduce the noise of the air intake system so as to improve the sound quality of the whole automobiles is a technical problem which needs to be solved urgently by technicians in the field.

SUMMERY OF THE UTILITY MODEL

The utility model provides an air filter air inlet device with good noise reduction effect for solving the technical problems existing in the prior art. The utility model discloses can reach the noise that produces in the effectual reduction course of work, improve the dirt effect of straining.

The utility model discloses a solve the technical scheme that technical problem that exists among the well-known technique took and be: an air filter air inlet device with good noise reduction effect comprises an upper shell and a lower shell which are mutually butted and buckled, a filter element is arranged in a space formed by the upper shell and the lower shell, a pre-filtering piece positioned below the filter element is arranged in the lower shell, and the pre-filtering piece comprises a plurality of groups of grid units; an air inlet pipe section communicated with the inner cavity of the lower shell is arranged on the lower shell, an air inlet hose is connected to the air inlet pipe section, and an air inlet assembly is connected to the air inlet hose; part of the bottom surface and/or part of the side wall of the lower shell are/is inwards sunken to form a curved surface; the air inlet assembly comprises an air inlet bent pipe connected with an air inlet hose, and the air inlet bent pipe is connected with a wavelength tube and a resonant cavity which are communicated with the inner cavity of the air inlet bent pipe.

The utility model has the advantages that: the utility model provides an air filter air inlet device with good noise reduction effect, which can reduce the air inlet noise of an air inlet assembly by arranging a wavelength tube and a resonant cavity, thereby reducing the noise in a vehicle; by arranging the curved surface, the larger plane bottom surface of the lower shell is divided into a plurality of smaller planes, so that the inherent frequency of the planes is improved, and the noise of the automobile in the high-speed running process is reduced; the air inlet bent pipe is arranged, so that the occupied space of the air inlet pipeline can be reduced to a certain degree; the pre-filtering piece is arranged to pre-remove dust of the gas with dust blowing, so that the strong gas with a large amount of dust is prevented from directly contacting with the filter element, the dust removal effect of the filter element is improved, and the service life of the filter element is prolonged; the grid unit in the pre-filtering piece plays a role of air equalization at the same time, so that air can flow to the filter element uniformly for secondary filtering, the occurrence of vortex phenomenon and the deformation phenomenon caused by uneven stress on the upper surface and the lower surface of the filter element are avoided, the air inlet resistance of the engine is reduced, and the power of the engine is improved.

Preferably: the pre-filtering piece comprises a mounting frame structure, and a plurality of groups of grid units are connected in the inner area of the mounting frame structure; the grid unit is composed of a plurality of groups of plates, the plates are distributed in a multilayer manner in the installation frame structure, and the plates of the upper layer and the lower layer are distributed in a staggered manner; the plates in the adjacent grid units have certain included angles; the mounting frame is structurally connected with a plurality of groups of clamping grooves, and clamping blocks matched with the clamping grooves in a clamping mode are arranged in the inner cavity of the lower shell.

Preferably: part of the side wall of the resonant cavity is inwards sunken to form a curved surface; and a plurality of groups of longitudinal reinforcing ribs are integrally formed on the outer side wall of the resonant cavity.

Preferably: an air outlet pipe section communicated with the inner cavity of the upper shell is arranged on the upper shell, and an air outlet bent pipe is connected to the air outlet pipe section.

Preferably: be connected with the mounting bracket on the casing down, set up the through-hole on the mounting bracket and wear to be equipped with the buffer block of rubber material in the through-hole, set up the through-hole on the buffer block and wear to be equipped with the bush in the through-hole, wear to be equipped with the screw in the bush.

Preferably: the bottom of casing has seted up the mounting hole down, wears to be equipped with the buffer block of rubber material in the mounting hole, has seted up the through-hole on the buffer block and wears to be equipped with the bush in the through-hole, wears to be equipped with the screw in the bush.

Preferably: an outward-expanding upper buckling edge is fixedly connected to the lower edge of the side wall of the upper shell, an outward-expanding lower buckling edge is fixedly connected to the upper edge of the side wall of the lower shell, and the lower buckling edge is embedded into the upper buckling edge.

Preferably: the filter element comprises a mounting frame, filter paper is mounted in the mounting frame, a circle of mounting lugs vertical to the outer side face of the mounting frame are integrally formed at the edge of the mounting frame, and elastic sealing rings are inserted on the mounting lugs; the elastic sealing ring is clamped between the upper buckling edge and the lower buckling edge.

Preferably: the edge of last casing and lower casing all is provided with the lug that corresponds the setting, goes up the casing and passes through the screw fastening connection who wears to locate in the lug with lower casing.

Preferably: a plurality of groups of longitudinal reinforcing ribs are integrally formed on the inner side and the outer side of the side walls of the upper shell and the lower shell.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic perspective view of the intake assembly of the present invention;

fig. 3 is a schematic perspective view of the pre-filter of the present invention.

In the figure: 1. a resonant cavity; 2. an air inlet bent pipe; 3. a wave tube; 4. an air intake hose; 5. a mounting frame; 6. an upper housing; 7. An air outlet bent pipe; 8. a lower housing; 9. a pre-filter; 9-1 and a clamping groove.

Detailed Description

In order to further understand the contents, features and effects of the present invention, the following embodiments are described in detail:

referring to fig. 1, the air filter intake device with good noise reduction effect of the present invention includes an upper housing 6 and a lower housing 8 that are butted and fastened with each other, an upper fastening edge that is externally extended is fixed at the lower edge of the sidewall of the upper housing 6, a lower fastening edge that is externally extended is fixed at the upper edge of the sidewall of the lower housing 8, and the lower fastening edge is embedded in the upper fastening edge. All be provided with the lug that corresponds the setting in the edge of last casing 6 and lower casing 8, go up casing 6 and lower casing 8 through wearing to locate the screw fastening connection in the lug. Above-mentioned setting can carry out fixed connection to last casing 6 and lower casing 8, and the convenience of equipment and later stage dismouting maintenance has been guaranteed in the structure simplification.

Part of the bottom surface and/or part of the side wall of the lower case 8 is recessed inward to form a curved surface. The curved surface can divide the larger plane bottom surface of the lower shell 8 into a plurality of smaller planes, so that the inherent frequency of the planes is improved, the noise in the high-speed driving process of the automobile is reduced, and the modal strength of the shell is increased; meanwhile, the curved surface can guide the airflow to be uniformly distributed before entering the filter element, so that the filtering efficiency is improved.

The mounting hole has been seted up to casing 8's bottom down, wears to be equipped with the buffer block of rubber material in the mounting hole, has seted up the through-hole on the buffer block and has worn to be equipped with the bush in the through-hole, wears to be equipped with the screw in the bush. The setting of mounting hole and screw is convenient for install air cleaner fixed, and simultaneously, the setting of buffer block and bush can reduce air cleaner's vibration.

Be connected with mounting bracket 5 on casing 8 down, set up the through-hole on mounting bracket 5 and wear to be equipped with the buffer block of rubber material in the through-hole, set up the through-hole on the buffer block and wear to be equipped with the bush in the through-hole, wear to be equipped with the screw in the bush. The installation of mounting bracket 5 is convenient for install air cleaner fixed, and simultaneously, the setting of buffer block and bush can reduce air cleaner's vibration.

In order to facilitate the discharge of the dust generated after filtration, a dust discharge hole is formed at the bottom of the lower case 8.

In order to further increase the modal strength of the shell and improve the noise reduction effect, a plurality of groups of longitudinal reinforcing ribs are integrally formed on the inner side and the outer side of the side walls of the upper shell 6 and the lower shell 8, and latticed grid reinforcing ribs are arranged at the top of the inner cavity of the upper shell 6 and the bottom of the inner cavity of the lower shell 8.

A filter element which is not shown is arranged in a space formed by the upper shell 6 and the lower shell 8, the filter element comprises an installation frame, filter paper is installed in the installation frame, a circle of installation lugs which are vertical to the outer side surface of the installation frame are integrally formed at the edge of the installation frame, and elastic sealing rings are inserted on the installation lugs; the elastic sealing ring is clamped between the upper buckling edge and the lower buckling edge. Above-mentioned design can guarantee the leakproofness between the edge of filter core and last casing 6 and lower casing 8, prevents gas leakage, improves filtration efficiency, and then can protect the engine better.

Air cleaner among the prior art is the air entering filter back directly through the filter core filtration most, then in the reentrant engine, this kind of setting makes the filter effect not good enough, at filtered air's in-process, the dust can be gradually on filter paper, and along with the dust is more and more in the passage of time, the filter effect of corresponding filter paper worsens gradually, causes the life-span of filter core sharply to descend, needs frequent renew cartridge.

In order to solve the above problem, in the present embodiment, a pre-filtering element 9 is disposed below the filter element in the lower housing 8, as shown in fig. 3, the pre-filtering element 9 includes a mounting frame structure, a plurality of sets of grid units for filtering are connected to an inner region of the mounting frame structure, each grid unit is composed of a plurality of sets of plates, in the present embodiment, each plate is a bent plate with a trapezoidal cross section, an opening direction of each bent plate faces away from an air flow direction, and bent portions of two adjacent plates form an air flow channel through which air can pass; the plates are distributed in a multilayer mode in the installation frame structure, and the plates of the upper adjacent layer and the lower adjacent layer are distributed in a staggered mode. Meanwhile, in order to prevent resonance and reduce noise, the plates in adjacent grid units have a certain included angle. In addition, in order to facilitate the disassembly, the installation and the daily maintenance of the pre-filtering piece 9, a plurality of groups of clamping grooves 9-1 are connected to the installation frame structure, and clamping blocks matched with the clamping grooves 9-1 in a clamping mode are arranged in the inner cavity of the lower shell 8.

Most of the existing air filters have the defects that the flow speed of internal air is not uniform, the vortex phenomenon is easy to generate, and the power of an engine is influenced; the uneven pressure that can make the filter core surface receive of the air velocity of flow on the surface can be uneven about the filter core, and then causes the filter core to warp, and the dust can appear in the place that air velocity is big simultaneously and piles up, influences the filter core life-span.

Make the flowing through who has the dust of casing 8 down flow through the prefilter piece 9 back flow direction filter core through setting up prefilter piece 9, prefilter piece 9 can carry out preliminary filtration to air, also play the effect of samming simultaneously, make things convenient for the flow direction filter core that the air can be even to filter once more, avoided the emergence of vortex phenomenon and the deformation that the uneven surface atress of filter core upper and lower surface caused, the air inlet resistance of engine has been reduced, the power of engine has been improved.

The gas with dust flowing through the pre-filtering piece 9 enters the airflow channel formed by the two adjacent plates, then the plate on the upper layer blocks the gas path of the gas, and the kinetic energy between molecules separates the large volume from the small volume of the dust and other impurity particles, so as to achieve the effect of pre-dedusting. The large volume particles accumulate and fall on the open/bottom of the lower housing 8 of the plate, and the small volume particles pass the plate with the air flow and enter the dust removal filter area of the filter element. The pre-filtering piece 9 can be detached and cleaned after the air filter works for a certain time, and can be repeatedly used. The utility model discloses a set up and filter piece 9 in advance and can remove dust in advance to the gas that has the blowing dirt, avoided having had the powerful gaseous direct and filter core contact of a large amount of dusts, improved the life of filter core when having improved the dust removal effect of filter core.

Be provided with the pipeline section that admits air that is linked together rather than the inner chamber on casing 8 down, be connected with air inlet hose 4 on the pipeline section of admitting air, in this embodiment, seted up the notch on the pipeline section of admitting air, be connected with on air inlet hose 4 with notch joint complex fixture block, make air inlet hose 4 and casing 8 realize dismantling the connection, easy to detach maintenance down through setting up notch and fixture block. In this embodiment, air inlet hose 4 adopts the corrugated hose, and this kind of setting can be when the pipe fitting body takes place to vibrate, and effectual vibrations that slow down.

The air inlet assembly is connected to the air inlet hose 4, a hoop can be additionally arranged for increasing the connection firmness, and the air inlet hose 4 and the air inlet assembly are reliably connected.

Referring further to fig. 2, in the present embodiment, the intake assembly includes an intake elbow 2 connected to the intake hose 4, and the intake elbow 2 has a bent structure, which can reduce the occupied space of the intake pipe assembly to a certain extent. The inlet elbow 2 is connected with a wave tube 3 and a resonance cavity 1 which are communicated with the inner cavity of the inlet elbow, and the noise of the inlet device can be further reduced by arranging the wave tube 3 and the resonance cavity 1.

Be connected with the multiunit mounting bracket on air inlet elbow 2, seted up the through-hole on the mounting bracket and wear to be equipped with the buffer block of rubber material at the through-hole, seted up the thru hole and be equipped with the bush in the thru hole interpolation in the center department of buffer block, wear to be equipped with locking screw in the bush. The air inlet bent pipe 2 is conveniently connected into an automobile engine cabin through the mounting frame arranged on the air inlet bent pipe 2, and a large amount of noise generated by vibration of the air inlet bent pipe 2 in the advancing process of an automobile is avoided.

The resonant cavity 1 is formed by mutually butted and buckled shells, and a part of side walls of the shells of the resonant cavity 1 are inwards sunken to form curved surfaces; the curved surface can divide a larger plane of the shell of the resonant cavity 1 into a plurality of smaller planes, so that the inherent frequency of the planes is improved, the noise in the high-speed running process of an automobile is reduced, and the modal strength of the shell is increased;

a plurality of groups of longitudinal reinforcing ribs are integrally formed on the outer side wall of the resonant cavity 1, and the strength of the resonant cavity 1 can be improved due to the arrangement of the reinforcing ribs. In order to further increase the modal strength of the shell and improve the noise reduction effect, grid-shaped reinforcing ribs are arranged at the bottom of the top of the inner cavity of the shell of the resonant cavity 1.

As shown in fig. 1, an air outlet pipe section communicated with the inner cavity of the upper shell 6 is arranged on the upper shell, and an air outlet elbow 7 is connected to the air outlet pipe section. The filtered clean gas flows through the air outlet elbow 7 and then flows to the engine of the automobile. In order to increase the firmness of connection, a clamp can be added, and then the air outlet bent pipe 7 and the upper shell 6 are reliably connected.

When the filter is used, the upper shell 6 and the lower shell 8 are connected in a threaded mode to form the shell of the filter, the filter is convenient to detach, gas enters the shell of the filter through the air inlet pipe 2 and the air inlet hose 4, and the resonant cavity 1 and the wavelength tube 3 can play a good noise reduction effect in the process.

The pre-filtering piece 9 can perform primary filtering operation on gas entering the lower shell 8, so that larger dust particles in the air are removed, then the filter element above the pre-filtering piece 9 can perform secondary filtering and dust removal on the air after pre-filtering and dust removal, so that clean, dry, sufficient and stable air is conveyed for an engine to meet the requirement of the engine, and the abnormal abrasion of the engine caused by the fact that impurities and large-particle dust in the air enter an engine combustion chamber is avoided. In addition, the pre-filtering piece 9 can perform preliminary filtering on the air and also has the function of air equalization, so that the air can be conveniently filtered again in an even flow direction through the filter element. The arrangement avoids the occurrence of eddy current phenomenon and the deformation phenomenon caused by uneven stress on the upper surface and the lower surface of the filter element, reduces the air inlet resistance of the engine, and improves the power of the engine.

Claims

1. The utility model provides an air cleaner air inlet unit that noise reduction effect is good, characterized by: the filter comprises an upper shell (6) and a lower shell (8) which are mutually butted and buckled, a filter element is arranged in a space formed by the upper shell (6) and the lower shell (8), a pre-filtering element (9) positioned below the filter element is arranged in the lower shell (8), and the pre-filtering element (9) comprises a plurality of groups of grid units; an air inlet pipe section communicated with the inner cavity of the lower shell (8) is arranged on the lower shell, an air inlet hose (4) is connected on the air inlet pipe section, and an air inlet assembly is connected on the air inlet hose (4); part of the bottom surface and/or part of the side wall of the lower shell (8) are/is inwards sunken to form a curved surface;

the air inlet assembly comprises an air inlet bent pipe (2) connected with an air inlet hose (4), and the air inlet bent pipe (2) is connected with a wave tube (3) and a resonance cavity (1) which are communicated with the inner cavity of the air inlet bent pipe.

2. The air intake device of air cleaner with good noise reduction effect as claimed in claim 1, wherein: the pre-filtering piece (9) comprises a mounting frame structure, and a plurality of groups of grid units are connected in the inner area of the mounting frame structure; the grid unit is composed of a plurality of groups of plates, the plates are distributed in a multilayer manner in the installation frame structure, and the plates of the upper layer and the lower layer are distributed in a staggered manner; the plates in the adjacent grid units have certain included angles; a plurality of groups of clamping grooves (9-1) are connected on the mounting frame structure, and clamping blocks which are matched with the clamping grooves (9-1) in a clamping way are arranged in the inner cavity of the lower shell (8).

3. The air intake device of air cleaner with good noise reduction effect as claimed in claim 1, wherein: part of the side wall of the resonant cavity (1) is inwards sunken to form a curved surface; a plurality of groups of longitudinal reinforcing ribs are integrally formed on the outer side wall of the resonant cavity (1).

4. The air intake device of air cleaner with good noise reduction effect as claimed in claim 1, wherein: an air outlet pipe section communicated with the inner cavity of the upper shell (6) is arranged on the upper shell, and an air outlet bent pipe (7) is connected on the air outlet pipe section.

5. The air intake device of air cleaner with good noise reduction effect as claimed in claim 1, wherein: be connected with mounting bracket (5) on casing (8) down, set up the through-hole on mounting bracket (5) and wear to be equipped with the buffer block of rubber material in the through-hole, set up the through-hole on the buffer block and wear to be equipped with the bush in the through-hole, wear to be equipped with the screw in the bush.

6. The air intake device of air cleaner with good noise reduction effect as claimed in claim 1, wherein: the bottom of casing (8) has seted up the mounting hole down, wears to be equipped with the buffer block of rubber material in the mounting hole, has seted up the through-hole on the buffer block and wears to be equipped with the bush in the through-hole, wears to be equipped with the screw in the bush.

7. The air intake device of air cleaner with good noise reduction effect as claimed in claim 1, wherein: an outward-expanding upper buckling edge is fixedly connected to the lower edge of the side wall of the upper shell (6), an outward-expanding lower buckling edge is fixedly connected to the upper edge of the side wall of the lower shell (8), and the lower buckling edge is embedded into the upper buckling edge.

8. The air intake device of an air cleaner with good noise reduction effect as claimed in claim 7, wherein: the filter element comprises a mounting frame, filter paper is mounted in the mounting frame, a circle of mounting lugs vertical to the outer side face of the mounting frame are integrally formed at the edge of the mounting frame, and elastic sealing rings are inserted on the mounting lugs; the elastic sealing ring is clamped between the upper buckling edge and the lower buckling edge.

9. The air intake device of air cleaner with good noise reduction effect as claimed in claim 1, wherein: all be provided with the lug that corresponds the setting in the edge of last casing (6) and lower casing (8), go up casing (6) and lower casing (8) through wearing to locate the screw fastening connection in the lug.

10. The air intake device of air cleaner with good noise reduction effect as claimed in claim 1, wherein: a plurality of groups of longitudinal reinforcing ribs are integrally formed on the inner side and the outer side of the side wall of the upper shell (6) and the lower shell (8).