CN217558440U

CN217558440U - Straight-through compact air filter

Info

Publication number: CN217558440U
Application number: CN202123202391.XU
Authority: CN
Inventors: 陈晓晨; 潘若强; 何耀杰
Original assignee: Mann and Hummel Filter Shanghai Co Ltd
Current assignee: Mann and Hummel Filter Shanghai Co Ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-10-11
Anticipated expiration: 2031-12-20

Abstract

The utility model relates to a straight-through compact air filter, which comprises an air filter shell, a main filter element unit and a safety filter element unit, wherein the main filter element unit comprises a central tube and a paper element which is supported by the central tube and is arranged outside the central tube; the safety filter element unit comprises a safety filter element support and a non-woven fabric core arranged outside the safety filter element support; the air filter shell is of a square flat shell structure, and the main filter element unit and the safety filter element unit are of square flat shell structures matched with the shape of the air filter shell. Compare traditional circular filter core, the utility model discloses air cleaner is whole to be square flat shell structure, and mounting structure is compact, and space utilization is high, does benefit to the installation, and effective filter area is high.

Description

Straight-through compact air filter

Technical Field

The utility model relates to a filter, concretely relates to compact air cleaner of through.

Background

Patent CN203892078U discloses an air filter assembly, including air cleaner assembly casing, is equipped with air cleaner in the casing, and casing upper portion is equipped with the air prefilter, air cleaner includes main filter core and the two-layer filter core that intussuseption each other of safe filter core. Patent CN202360256U discloses a novel air cleaner, including empty filter, empty filter include empty filter casing and install in main filter core in the empty filter casing, novel air cleaner still includes the prefilter, prefilter casing and empty filter casing set up as an organic whole.

At present, with the upgrading of the emission of road and non-road vehicles and engineering machinery, the occupied space of an exhaust gas post-treatment system is larger and larger, and the arrangement space of an air intake system is compressed. At present, the mainstream circular air filter in the market often cannot meet the performance requirements of flow resistance and dust capacity in a limited arrangement space due to low space utilization rate. Therefore, compact air cleaners that can be deployed making full use of the limited space are becoming increasingly important.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a through compact air cleaner in order to solve the above problems.

The purpose of the utility model is realized through the following technical scheme:

a straight-through compact air filter comprises an air filter shell, a main filter element unit arranged in a cavity in the air filter shell, and a safety filter element unit nested in the main filter element unit, wherein the main filter element unit comprises a central tube and a paper element supported by the central tube and arranged outside the central tube; the safety filter element unit comprises a safety filter element bracket and a non-woven fabric core arranged outside the safety filter element bracket; the air filter shell is of a square flat shell structure, and the main filter element unit and the safety filter element unit are of square flat shell structures matched with the shape of the air filter shell.

Compare traditional circular filter core, the utility model discloses air cleaner wholly is square flat shell structure, and mounting structure is compact, and is high to installation space utilization, does benefit to install in the driver's cabin below, and engine compartment inside etc. requires the higher place to arrange the installation to the installation space. This kind of structure space utilization is high, and air cleaner's safety core and main filter core are flat structure together, match the inside idle space of utilization main filter core that can be better after the installation, and the effective filtration area of main filter core can be higher in the equal installation border, and the circulation of air area of this air cleaner filter core is more traditional circular empty to be strained and is not had obvious decline, so to great blockage, the influence of blocking like blade etc. is insensitive, can not cause filtration area's waste.

Further, a prefilter is arranged at the front end of the air filter housing, and the prefilter is mounted on the air filter housing through a buckle.

Furthermore, a plurality of cylindrical shunting blocks for pre-filtering the entering dirty air are arranged in the prefilter.

Further, the air inlet of the prefilter is arranged at the bottom end of the prefilter, and the air outlet of the prefilter is communicated with a cavity on the dirty air side in the air filter.

Further, the refill is supported by the center tube to glue integrated into one piece through terminal surface PU and be main filter core.

Further, main filter core unit pass through terminal surface PU glue with empty filter shell carries out interference fit, realizes sealed and fixed connection.

Furthermore, the non-woven fabric core is supported by the safety filter element support and is integrally formed into the safety filter element through the ring surface PU glue.

Further, safe filter core unit pass through the anchor ring PU glue with the interference fit is carried out to the center tube, realizes fixed connection.

Further, the air outlet of the air cleaner is arranged at the side end of the air filter housing.

Furthermore, the volume of the main filter element unit is gradually increased from the air inlet end to the air outlet end, and the volume of the safety filter element unit is gradually increased from the air inlet end to the air outlet end.

During the during operation, dirty air process the utility model discloses an in entering into the dirty side cavity that casing and main filter core constitute after the prefilter, through the filtration back of refill, clean air enters into the clean side cavity that casing and filter core are constituteed to finally obtain clean air behind the non-woven fabrics core. The main filter core effect is for carrying out the fine filtration to dirty air, separates impurity from dirty air to obtain clean air, the safety filter core effect is for changing or when taking place the damage at main filter core, prevents that the foul from falling into clean side.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. high space utilization rate: this air cleaner's safe core and main filter core are flat structure together, match the inside idle space of utilization main filter core that can be better after the installation, and the effective filter area of main filter core can be higher in the equal installation border.

2. The installation structure is compact: this air cleaner is flat design, compares traditional circular empty the straining, and is higher to installation space utilization, does benefit to in the driver's cabin below, and the installation is arranged to the place that the installation space required height such as engine compartment inside.

3. Low blocking property: compared with the traditional circular air filter, the air flow area of the filter element of the air filter is not obviously reduced, so that the air filter is insensitive to the blockage influence of larger blockage objects such as blades and the like, and the waste of the filter area is avoided.

Drawings

FIG. 1 is a schematic view of the internal structure of the air cleaner of the present invention;

FIG. 2 is an isometric view of the external structure of the air cleaner of the present invention;

as indicated by the reference numbers in fig. 1: 1-prefilter, 2-air filter shell, 3-central tube, 4-paper core, 5-end face PU glue, 6-safety filter element bracket, 7-non-woven fabric core and 8-ring face PU glue.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 and 2, a straight-through compact air filter comprises an air filter shell 2, a main filter element unit arranged in a cavity inside the air filter shell 2, and a safety filter element unit nested in the main filter element unit, wherein the main filter element unit comprises a central tube 3 and a paper element 4 supported by the central tube 3 and arranged outside the central tube 3; the safety filter element unit comprises a safety filter element bracket 6 and a non-woven fabric core 7 arranged outside the safety filter element bracket 6; the air filter is characterized in that the air filter shell 2 is of a square flat shell structure, and the main filter element unit and the safety filter element unit are of square flat shell structures matched with the air filter shell 2 in shape. Compare traditional circular filter core, this air cleaner wholly is square flat shell structure, and mounting structure is compact, and is high to the installation space utilization, does benefit to install in the driver's cabin below, and the installation is arranged to the place that the installation space required ratio is higher such as engine compartment inside. This kind of structure space utilization is high, and air cleaner's safe core and main filter core are flat structure together, match the inside idle space of utilization main filter core that can be better after the installation, and the effective filtration area of main filter core can be higher in the equal installation border, and the circulation of air area of this air cleaner filter core does not have obvious decline than traditional circular empty filter, so to great blockage, the influence of blocking like blade etc. is insensitive, can not cause filter area's waste.

As a specific implementation mode, the front end of the air filter housing 2 is provided with the prefilter 1, the prefilter 1 is installed on the air filter housing 2 through a buckle, a plurality of cylindrical shunting blocks 101 for prefiltering the entering dirty air are arranged in the prefilter 1, the cylindrical shunting blocks 101 are arranged in the prefilter, the pressure stabilizing shunting effect is realized on the entering prefiltered dirty air, and the filter efficiency is improved in a cavity for stably entering the air filter housing 2 by using the dirty air.

In addition, the air inlet of the prefilter 1 is arranged at the bottom end of the prefilter 1, the air outlet of the prefilter 1 is communicated with a cavity on the dirty air side in the air filter, and the paper core 4 is supported by the central tube 3 and integrally formed into a main filter core through the end face PU glue 5. Main filter core unit glues 5 through the terminal surface PU and carries out interference fit with empty filter shell 2, realizes sealed and fixed connection, and non-woven fabric core 7 is supported by safety filter support 6 to glue 8 integrated into one piece through the anchor ring PU and be safety filter. The safety filter element unit is in interference fit with the central tube 3 through the ring surface PU glue 8, and fixed connection is achieved. The air outlet of the air filter is arranged at the side end of the air filter shell 2, the volume of the main filter element unit is gradually increased from the air inlet end to the air outlet end, and the volume of the safety filter element unit is gradually increased from the air inlet end to the air outlet end.

The concrete working process does, dirty air process the utility model discloses a prefilter 1 enters into the dirty side cavity that casing and main filter core constitute after the prefilter, through the filtration back of refill 4, clean air enters into the clean side cavity that casing and filter core constitute to finally obtain clean air after 7 through the nonwoven core. The main filter core effect is for carrying out the fine filtration to dirty air, separates impurity from dirty air to obtain clean air, the safety filter core effect is for changing or when taking place the damage at main filter core, prevents that the foul from falling into clean side.

The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.

Claims

1. A straight-through compact air filter comprises an air filter shell (2), a main filter element unit arranged in a cavity inside the air filter shell (2), and a safety filter element unit nested in the main filter element unit,

the main filter element unit comprises a central tube (3), and a paper element (4) which is supported by the central tube (3) and is arranged outside the central tube (3); the safety filter element unit comprises a safety filter element bracket (6) and a non-woven fabric core (7) arranged outside the safety filter element bracket (6);

the air filter is characterized in that the air filter shell (2) is of a square flat shell structure, and the main filter element unit and the safety filter element unit are of square flat shell structures matched with the air filter shell (2) in shape.

2. A compact through air cleaner according to claim 1, wherein the air filter housing (2) is provided with a prefilter (1) at the front end, said prefilter (1) being snap-fitted to the air filter housing (2).

3. A compact straight-through air filter according to claim 2, wherein the prefilter (1) is provided with a plurality of cylindrical diverter blocks (101) for prefiltering incoming dirty air.

4. A compact through air cleaner according to claim 3 wherein the air inlet of the pre-filter (1) is provided at the bottom end of the pre-filter (1) and the air outlet of the pre-filter (1) communicates with the dirty air side cavity in the air cleaner.

5. A compact through air filter according to claim 1 wherein the paper element (4) is supported by the central tube (3) and is integrally formed as a primary filter element by the end face PU glue (5).

6. A compact through air cleaner according to claim 5 wherein said main filter element unit is sealed and fixedly attached by interference fit with said air filter housing (2) by means of end PU glue (5).

7. A compact through air cleaner according to claim 1 wherein the non-woven core (7) is supported by a safety cartridge support (6) and is integrally formed as a safety cartridge by means of a toroidal PU-glue (8).

8. A compact through air cleaner according to claim 7 wherein said safety cartridge unit is fixedly attached by interference fit with said central tube (3) by means of a ring surface PU glue (8).

9. A compact through air cleaner according to claim 1 wherein the air outlet of the air cleaner is provided at a side end of the air cleaner housing (2).

10. A flow-through compact air cleaner according to claim 9 wherein said main filter element unit increases in volume from the air inlet end to the air outlet end, and said safety filter element unit increases in volume from the air inlet end to the air outlet end.