CN215860570U - Air filter, noise elimination structure thereof and noise elimination structure of air compressor - Google Patents
Air filter, noise elimination structure thereof and noise elimination structure of air compressor Download PDFInfo
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- CN215860570U CN215860570U CN202122115876.9U CN202122115876U CN215860570U CN 215860570 U CN215860570 U CN 215860570U CN 202122115876 U CN202122115876 U CN 202122115876U CN 215860570 U CN215860570 U CN 215860570U
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Abstract
本实用新型公开了一种空气滤清器及其消声结构、空压机消声结构，上端盖内插装隔盘，隔盘的中央通道连通上端盖的出气口；上端盖与隔盘之间设置有共振消声结构与扩张消声结构。本实用新型借用上端盖的内部空间集成共振消声结构与扩张消声结构，在不增加消声零部件的基础上实现消声，降低了成本；消声结构集成在上端盖内，不占用外部空间，在整车有限的布置空间内，可以将消声结构的体积设计得更大，提升消声容量，提高消声效果；而且，消声结构设置在发动机进气的主管道上，同时可以对发动机进气噪声源进行消声。
The utility model discloses an air filter, a noise reduction structure thereof, and a noise reduction structure of an air compressor. A spacer plate is inserted in an upper end cover, and a central passage of the spacer plate is communicated with an air outlet of the upper end cover; A resonance muffler structure and an expansion muffler structure are arranged between them. The utility model utilizes the inner space of the upper end cover to integrate the resonance muffler structure and the expansion muffler structure, realizes muffling without adding muffling parts, and reduces the cost; the muffler structure is integrated in the upper end cover and does not occupy the outside Space, in the limited layout space of the whole vehicle, the volume of the muffler structure can be designed to be larger, the muffling capacity can be increased, and the muffling effect can be improved; Silence the engine intake noise source.
Description
Technical Field
The utility model relates to the technical field of engine air filter noise elimination, in particular to an air filter, a noise elimination structure thereof and a noise elimination structure of an air compressor.
Background
The air filter is used as a key part of an air inlet system of the engine, mainly used for purifying air, guiding airflow to flow and providing fresh and clean air for the engine and other air components, and also has a certain noise elimination function.
Along with commercial car driver to the improvement of noise consciousness in the car, the noise elimination volume of air cleaner also becomes the performance index of air cleaner gradually and is paid attention to, but along with the management and control of whole car is stricter and stricter, the volume of air cleaner is littleer and more for the noise elimination capacity that originally is not surplus is constantly reduced, and the noise elimination volume is constantly compressed, and the noise elimination effect is relatively poor, can not reach the requirement. In addition, the air filter is connected with the air compressor, after a vehicle is started, a compression gear of the air compressor is always in a working state, noise generated by meshing of the gears enters the air filter through a connecting pipe, in the prior art, a noise elimination device is usually added between the air filter and the air compressor, the cost is increased, the whole vehicle is limited in arrangement space, the existing air compressor silencer is usually small in size, small in noise elimination capacity, poor in noise elimination effect and incapable of meeting the requirements.
SUMMERY OF THE UTILITY MODEL
The applicant aims at the defects of the existing air filter noise elimination structure, provides an air filter with a reasonable structure, a noise elimination structure of the air filter and a noise elimination structure of an air compressor, and the noise elimination structure is arranged by means of an upper end cover space, so that the noise elimination capacity is improved, and the noise elimination effect is improved.
The technical scheme adopted by the utility model is as follows:
a silencing structure of an air filter is characterized in that a partition disc is inserted into an upper end cover, and a central channel of the partition disc is communicated with an air outlet of the upper end cover; a resonance silencing structure and an expansion silencing structure are arranged between the upper end cover and the partition disc.
As a further improvement of the above technical solution:
two clapboards are arranged between the partition disc and the upper end cover, and a cavity between the partition disc and the upper end cover is divided into a resonant cavity and an expansion cavity by the two clapboards; the wall surface of the partition plate is provided with a resonance hole corresponding to the resonance cavity and an expansion hole corresponding to the expansion cavity, and the resonance hole and the expansion hole are communicated with the central channel; the resonance hole and the resonance cavity form a resonance noise elimination structure, and the expansion hole and the expansion cavity form an expansion noise elimination structure.
The partition plate is integrally formed on the upper end cover or the partition plate.
The partition disc is sequentially provided with an upper cylinder, a chassis and a lower cylinder from top to bottom, the outer peripheral surface of the chassis is attached to the inner peripheral surface of the upper end cover, and the upper cylinder is inserted into a slot of the upper end cover; the partition plate is axially arranged among the chassis, the upper barrel and the upper end cover; the resonance hole and the expansion hole are arranged on the upper cylinder.
Silencing cotton is filled in the expansion cavity.
An air filter integrates the sound attenuation structure, and comprises a shell, an upper end cover and a filter element assembly, wherein the sound attenuation structure is arranged at the air outlet end of the filter element assembly.
As a further improvement of the above technical solution:
the upper end cover is fixed at the upper end part of the shell, the filter element assembly is inserted in the shell, the partition disc is positioned at the upper side of the filter element assembly, and the central channel of the partition disc is communicated with the gas purification side of the filter element assembly.
The lower barrel of the partition plate is sleeved on the upper end part of the filter element assembly.
The lower end part of the shell is provided with a lower end cover, and the shell is provided with an air inlet.
The utility model provides an air compressor machine sound-attenuating structure, includes above-mentioned sound-attenuating structure, is provided with the bleed pipe on the upper end cover, and bleed pipe intercommunication expansion chamber, bleed pipe are connected to the air compressor machine through the connecting pipe on.
The utility model has the following beneficial effects:
the utility model integrates the resonance silencing structure and the expansion silencing structure by using the internal space of the upper end cover, realizes silencing on the basis of not increasing silencing parts, and reduces the cost; the silencing structure is integrated in the upper end cover, the external space is not occupied, the volume of the silencing structure can be designed to be larger in the limited arrangement space of the whole vehicle, the silencing capacity is improved, and the silencing effect is improved; moreover, the silencing structure is arranged on a main air inlet pipeline of the engine, and can be used for silencing an air inlet noise source of the engine.
The air compressor of the utility model muffles sound through the muffling structure integrated on the air filter, eliminates a separate muffling device between the air compressor and the air filter, reduces the cost, saves the space, increases the muffling element of the air filter and improves the muffling effect of the air filter.
Drawings
Fig. 1 is a front view of a first embodiment of the present invention.
Fig. 2 is a sectional view of section a-a in fig. 1.
FIG. 3 is a cross-sectional view of the first embodiment.
Fig. 4 is a perspective view of the upper end cap according to the first embodiment.
Fig. 5 is a perspective view of a partition plate according to the first embodiment.
Fig. 6 is a front view of the second embodiment of the present invention.
Fig. 7 is a sectional view of section B-B in fig. 6.
Fig. 8 is a sectional view of the second embodiment.
Fig. 9 is a perspective view of the upper end cap according to the second embodiment.
Fig. 10 is a perspective view of a partition plate according to a second embodiment.
In the figure: 1. a housing; 11. an air inlet;
2. an upper end cover; 21. an air outlet; 22. a slot; 23. a first separator; 24. a bleed pipe;
3. a lower end cover; 4. a filter element assembly;
5. a separation disc; 51. a chassis; 52. feeding the cylinder; 53. a lower barrel; 54. a second separator; 55. a resonant hole; 56. expanding the hole; 57. a central channel;
6. a resonant cavity; 7. the lumen is expanded.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
The first embodiment is as follows:
as shown in fig. 1 and 3, the air cleaner of the present invention includes a housing 1, an upper end cap 2, a lower end cap 3 and a filter element assembly 4, wherein the upper end cap 2 and the lower end cap 3 are respectively fixed at the upper and lower end portions of the housing 1 by fasteners, the filter element assembly 4 is inserted into an inner cavity formed by the housing 1 and the lower end cap 3, a cavity at the outer side of the filter element assembly 4 is a dirty air side, and the center of the filter element assembly 4 is a clean air side; the casing 1 is provided with an air inlet 11 along the radial direction, the air inlet 11 is communicated with the dirty air side, the upper end cover 2 is provided with an air outlet 21 along the axial direction, and the air outlet 21 is communicated with the clean air side. As shown in fig. 2 and 3, a separation disc 5 is inserted into the upper end cover 2 and positioned on the upper side of the filter element assembly 4.
As shown in fig. 2 to 4, the bottom of the air outlet 21 of the upper end cover 2 is provided with a slot 22; two first partition plates 23 extend downwards from the inner side surface of the upper end cover 2 along the axial direction, and the two first partition plates 23 are distributed along the radial direction and have a distance; the first partition plate 23 is integrally formed on the upper end cap 2, and an outer side surface of the first partition plate 23 is connected to an inner peripheral surface of the upper end cap 2.
As shown in fig. 5, the partition plate 5 has a central passage 57 therethrough, and the central passage 57 communicates the air outlet 21 of the upper end cap 2 with the clean air side of the filter element assembly 4. The partition plate 5 is sequentially provided with an upper tube 52, a chassis 51 and a lower tube 53 from top to bottom, and the outer diameter of the chassis 51 is larger than that of the upper tube 52 and the lower tube 53; as shown in fig. 3, the outer diameter of the bottom plate 51 matches with the inner diameter of the upper end cover 2, and the outer peripheral surface of the bottom plate 51 is attached to the inner peripheral surface of the upper end cover 2; the upper end of the upper tube 52 is inserted into the slot 22 of the upper end cap 2, and the lower tube 53 is sleeved on the upper end of the filter element assembly 4. As shown in fig. 2 and 3, the inner side surfaces of the two first partition plates 23 of the upper end cover 2 are attached to the outer peripheral surface of the upper cylinder 52, the bottom surfaces of the two first partition plates 23 are attached to the upper surface of the bottom plate 51, and the two first partition plates 23 separate the cavity above the bottom plate 51 and between the upper end cover 2 and the upper cylinder 52 into two cavities, namely a resonant cavity 6 and an expansion cavity 7; as shown in fig. 2, 3 and 5, a resonance hole 55 is formed in a region of the circumferential wall surface of the upper cylinder 52, which is located in the resonance cavity 6, the resonance hole 55 communicates with the resonance cavity 6 and the central passage 57, and the resonance hole 55 and the resonance cavity 6 form a resonance noise elimination structure; a plurality of expansion holes 56 are formed in the circumferential wall surface of the upper barrel 52 and in the area of the expansion cavity 7, the expansion holes 56 are communicated with the expansion cavity 7 and the central channel 57, and the expansion holes 56 and the expansion cavity 7 form an expansion noise elimination structure; and a part of sound waves of the air flow on the clean air side of the filter element assembly 4 enter the resonant cavity 6 through the resonant holes 55 to perform resonance noise elimination in the resonance noise elimination structure, and the other part of sound waves enter the expansion cavity 7 through the expansion holes 56 to perform expansion noise elimination in the expansion noise elimination structure. By integrating the resonance noise elimination structure and the expansion noise elimination structure in the inner space of the upper end cover 2, the utility model realizes noise elimination without adding noise elimination parts, thereby reducing the cost; the noise elimination structure is integrated in the upper end cover 2, the external space is not occupied, the size of the noise elimination structure can be designed to be larger in the limited arrangement space of the whole vehicle, the noise elimination capacity is improved, and the noise elimination effect is improved; moreover, the silencing structure is arranged on a main air inlet pipeline of the engine, and can be used for silencing an air inlet noise source of the engine.
Furthermore, the expansion cavity 7 can be filled with silencing cotton to form a high-frequency silencing structure, so that high-frequency sound waves are silenced, the silencing capacity is further improved, and the silencing effect is improved.
When in actual use, air enters the dirty air side from the air inlet 11, enters the clean air side after being filtered by the filter element assembly 4 and is discharged from the air outlet 21; the sound wave in the air enters the silencing structure of the upper end cover 2 for silencing.
Example two:
as shown in fig. 6 to 10, in this embodiment, the upper end cover 2 is not provided with a partition plate, but two second partition plates 54 extend upwards from the bottom plate 51 of the partition plate 5 along the axial direction, the two second partition plates 54 are integrally formed on the partition plate 5, and the inner side surfaces of the second partition plates 54 are connected with the outer peripheral surface of the upper cylinder 52; after the separation disc 5 is inserted into the upper end cover 2, the outer side surfaces of the second separation plates 54 are tightly attached to the inner circumferential surface of the upper end cover 2, and the two second separation plates 54 separate the cavity above the bottom disc 51 and between the upper end cover 2 and the upper cylinder 52 into two cavities, namely a resonant cavity 6 and an expansion cavity 7. As shown in fig. 7, 8 and 10, the circumferential wall surface of the upper cylinder 52 is provided with a resonant hole 55 in the region of the resonant cavity 6; the peripheral wall surface of the upper cylinder 52 and the area of the expansion cavity 7 are provided with at least one expansion hole 56 with a larger aperture, and the expansion hole 56 and the expansion cavity 7 form an expansion noise elimination structure.
As shown in fig. 6 to 8, a bleed air pipe 24 is arranged on the upper end cover 2, and the bleed air pipe 24 is communicated with the expansion cavity 7; the bleed pipe 24 can be connected to the air compressor machine through the connecting pipe on (not shown in the figure), bleed pipe 24 constitutes the noise cancelling structure of air compressor machine with expansion chamber 7, the noise sound wave of air compressor machine can get into expansion chamber 7 through connecting pipe and bleed pipe 24 and carry out the noise elimination, the air compressor machine is silenced through the noise cancelling structure of integration on air cleaner, the noise eliminator between air compressor machine and the air cleaner has been saved, the cost is reduced, the space has also been practiced thrift simultaneously, in the limited arrangement space of whole car, make air cleaner obtain bigger design space, can design noise cancelling structure's volume bigger, promote the noise elimination capacity, improve the noise elimination effect.
The foregoing description is illustrative of the present invention and is not to be construed as limiting thereof, as the utility model may be modified in any manner without departing from the spirit thereof. For example, the partition plate may not be integrally formed on the upper end cover 2 or the partition plate 5, but the partition plate is provided as an independent element between the upper end cover 2 or the partition plate 5, as long as the purpose of dividing the cavity above the base plate 51 and between the upper end cover 2 and the upper cylinder 52 into two cavities, i.e., the resonant cavity 6 and the expansion cavity 7, can be achieved.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122115876.9U CN215860570U (en) | 2021-09-03 | 2021-09-03 | Air filter, noise elimination structure thereof and noise elimination structure of air compressor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122115876.9U CN215860570U (en) | 2021-09-03 | 2021-09-03 | Air filter, noise elimination structure thereof and noise elimination structure of air compressor |
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| CN215860570U true CN215860570U (en) | 2022-02-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113638831A (en) * | 2021-09-03 | 2021-11-12 | 无锡亿利环保科技有限公司 | Air filter, noise elimination structure thereof and noise elimination structure of air compressor |
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2021
- 2021-09-03 CN CN202122115876.9U patent/CN215860570U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113638831A (en) * | 2021-09-03 | 2021-11-12 | 无锡亿利环保科技有限公司 | Air filter, noise elimination structure thereof and noise elimination structure of air compressor |
| CN113638831B (en) * | 2021-09-03 | 2024-09-17 | 无锡亿利环保科技有限公司 | Air filter and its silencer structure, air compressor silencer structure |
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