CN210396921U - Low noise air filter - Google Patents

Abstract

The utility model discloses a low noise air cleaner, including casing and filter core, the filter core sets up in the casing, the filter core becomes the chamber of admitting air and goes out the air cavity with casing internal partitioning, housing face is equipped with intake pipe and outlet duct, intake pipe and the chamber intercommunication of admitting air, the outlet duct communicates with going out the air cavity, shells inner wall is equipped with the spacer, carry out fixed connection, many through many fixed strips between spacer and the shells inner wall the crisscross setting of fixed strip, there is the clearance between spacer and the inner wall, the fixed strip separates into a plurality of amortization chambeies with between spacer and the casing. The utility model provides a low noise air cleaner reduces air cleaner and when filtering the air, carries out the part to the noise that the casing sent and eliminates to noise abatement's propagation.

Description

Low noise air filter

Technical Field

The utility model relates to a filter technical field especially relates to a low noise air cleaner.

Background

NVH (noise, vibration and harshness) performance has become an important indicator for evaluating automobile quality. Meanwhile, with the continuous attention of people on noise pollution, the regulation for the automobile noise is also continuously strict. Intake noise has also received sufficient attention as an important noise source for automobiles.

The filter is a filter that filters impurities or gas through filter paper. In the air inlet system of the automobile engine, the air filter is an important component of the air inlet system of the automobile engine and is used for filtering dust or sand grains and the like in air and preventing the engine from being influenced by external impurities to affect normal operation. The structural performance of the air cleaner not only has an important influence on the air intake system of the engine, but also can be a noise source when the air cleaner is not designed reasonably. Because the noise is the main noise source forming the noise in the vehicle as the distance from the compartment is nearest, if the intake noise can be reduced, the comfort of the vehicle can be greatly improved, and therefore, the air filter needs to be subjected to noise reduction treatment, and the noise generated in the intake system of the vehicle engine is reduced, so that the influence on people is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a low noise air cleaner reduces air cleaner and when filtering the air, carries out the part to the noise that the casing sent and eliminates to the propagation of noise abatement.

The utility model discloses a technical scheme that low noise air cleaner adopted is:

the utility model provides a low noise air cleaner, includes casing and filter core, the filter core sets up in the casing, the filter core separates into the chamber of admitting air and goes out the air cavity with casing internal portion, housing face is equipped with intake pipe and outlet duct, intake pipe and the chamber intercommunication of admitting air, the outlet duct with go out the air cavity intercommunication, shells inner wall is equipped with the spacer, carry out fixed connection, many through many fixed strips between spacer and the shells inner wall the crisscross setting of fixed strip, there is the clearance between spacer and the inner wall, the fixed strip separates into a plurality of amortization chambeies with between spacer and the casing.

Preferably, the housing comprises a first housing and a second housing, and the first housing and the second housing are detachably connected.

Preferably, an annular sealing ring is arranged at the joint of the first shell and the second shell.

Preferably, the air inlet pipe is arranged on the surface of the first shell, and the air outlet pipe is arranged on the surface of the second shell.

Preferably, the fixing strips are arranged vertically to each other, and the silencing cavities are distributed in a grid manner.

Preferably, the sound-absorbing material is filled in the sound-absorbing cavity.

The utility model discloses a low noise air cleaner's beneficial effect is: the outlet duct is connected with the equipment that needs admit air, like automobile engine, air compressor machine etc. the filter core sets up in the casing, separates into the chamber of admitting air and goes out the air cavity with the casing, inhales the chamber of admitting air of casing through the intake pipe with the outside air in, during rethread filter core entered into the chamber of giving vent to anger, enters into equipment through the outlet duct at last, accomplishes and goes out filtering to the air. The utility model discloses a noise reduction filter, including shell, shell inner wall, the casing is equipped with the spacer, carry out fixed connection through many fixed strips between spacer and the shell inner wall, the fixed strip separates into a plurality of amortization chambeies between spacer and the shell, the in-process that enters into the shell and discharge casing at the air, thereby because the flow friction of air, thereby collision and disturbance can be in the production of casing noise along with, the noise is propagated to the casing outside with the form of sound wave, when the spacer is worn to permeate through to the noise, enter into the amortization chamber between spacer and the shell, some noise is kick-backed repeatedly in the amortization chamber, thereby make some noise offset in the amortization chamber and consumed, reduce the noise volume of wearing out the shell, reduce the influence to people of the noise that produces at the filter in filtering process, make the filter can keep the operating condition of a low noise.

Drawings

Fig. 1 is a schematic structural view of the low noise air filter of the present invention.

Detailed Description

The invention will be further elucidated and described with reference to the following embodiments and drawings in which:

referring to fig. 1, a low noise air filter includes a housing and a filter element disposed in the housing, the filter element separates the interior of the housing into an air inlet chamber and an air outlet chamber, the surface of the housing is provided with an air inlet tube 111 and an air outlet tube 121, the air inlet tube 111 is communicated with the air inlet chamber, and the air outlet tube 121 is communicated with the air outlet chamber.

Above-mentioned casing includes first casing 11 and second casing 12, and first casing 11 and second casing 12 adopt to dismantle the connection, and first casing 11 and the mode of second casing 12 accessible bolt or buckle are connected, and the people of being convenient for dismantle to filter core in first casing 11 and the second casing 12 is changed.

The air inlet pipe 111 is disposed on the surface of the first housing 11, the air outlet pipe 121 is disposed on the surface of the second housing 12, and the air inlet pipe 111 and the air outlet pipe 121 are respectively disposed at two opposite ends to separate the air inlet pipe 111 and the air outlet pipe 121.

The outlet pipe 121 is connected to a device requiring air intake, such as an automobile engine, an air compressor, etc., and the inlet pipe 111 is directly communicated with the outside. Outside air is sucked into the air inlet cavity of the shell through the air inlet pipe 111, the air entering the air inlet cavity passes through the filter element in the shell again to filter the air, and the air enters the air outlet cavity of the shell after being filtered and is sucked into an engine air inlet system from the air outlet cavity.

And the joint of the first shell 11 and the second shell 12 is provided with an annular sealing ring 13, and the annular sealing ring 13 is in interference fit with the first shell 11 and the second shell 12, so that a gap between the first shell 11 and the second shell 12 is filled, air in the shell is prevented from flowing out of the gap, and the sealing performance of the shell is improved.

The casing inner wall is equipped with spacer 14, carries out fixed connection through many fixed strips 15 between spacer 14 and the casing inner wall, and many fixed strips 15 are crisscross to be set up, exist between spacer 14 and the inner wall and want the clearance, and fixed strip 15 separates into a plurality of amortization chambeies 16 between spacer 14 and the casing.

In the process that the air enters the shell and is discharged out of the shell, due to flowing friction, collision and disturbance of the air, noise is generated in the shell, the noise is transmitted to the outside of the shell in the form of sound waves, when the noise penetrates through the spacer 14, the noise enters the silencing cavity 16 between the spacer 14 and the shell, part of the noise rebounds repeatedly in the silencing cavity 16, so that part of the noise is offset and consumed in the silencing cavity 16, the noise volume penetrating out of the shell is reduced, the influence of the noise generated in the filtering process of the filter on people is reduced, and the filter can keep a low-noise working state.

In the above scheme, the fixing strips 15 are vertically arranged, and the silencing cavities 16 are in grid distribution. Therefore, the size of the silencing cavities 16 is consistent, noise is better eliminated, the number of the silencing cavities 16 is increased, and the noise elimination capacity in the shell is improved. And sound absorbing material 17 is filled in the silencing cavity 16, and the sound absorbing material 17 can be used for better absorbing and blocking the noise passing through the spacer 14, so that the noise is rebounded and reflected in the sound absorbing material 17, the effect of better eliminating the noise is achieved, and the noise of the air filter during working is smaller.

The utility model provides a low noise air cleaner, the outlet duct is connected with the equipment that needs admit air, like automobile engine, air compressor machine etc. the filter core sets up in the casing, separates into the chamber of admitting air and goes out the air cavity with the casing, inhales the chamber of admitting air of casing with the outside air through the intake pipe in, the rethread filter core enters into out the air cavity, enters into equipment through the outlet duct at last, accomplishes the filtration of air and comes out. The utility model discloses a noise reduction filter, including shell, shell inner wall, the casing is equipped with the spacer, carry out fixed connection through many fixed strips between spacer and the shell inner wall, the fixed strip separates into a plurality of amortization chambeies between spacer and the shell, the in-process that enters into the shell and discharge casing at the air, thereby because the flow friction of air, thereby collision and disturbance can be in the production of casing noise along with, the noise is propagated to the casing outside with the form of sound wave, when the spacer is worn to permeate through to the noise, enter into the amortization chamber between spacer and the shell, some noise is kick-backed repeatedly in the amortization chamber, thereby make some noise offset in the amortization chamber and consumed, reduce the noise volume of wearing out the shell, reduce the influence to people of the noise that produces at the filter in filtering process, make the filter can keep the operating condition of a low noise.

It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims (6)

1. The utility model provides a low noise air cleaner, includes casing and filter core, the filter core sets up in the casing, the filter core separates into the casing internal portion and admits air the chamber and go out the air cavity, housing face is equipped with intake pipe and outlet duct, intake pipe and the chamber intercommunication that admits air, the outlet duct with go out the air cavity intercommunication, its characterized in that, shells inner wall is equipped with the spacer, carry out fixed connection, many through many fixed strips between spacer and the shells inner wall the crisscross setting of fixed strip, there is the clearance between spacer and the inner wall, the fixed strip separates into a plurality of amortization chambeies with separating between spacer and the casing.

2. The low noise air cleaner of claim 1, wherein the housing comprises a first housing and a second housing, the first housing and the second housing being removably connected.

3. The low noise air cleaner of claim 2, wherein an annular gasket is provided at the junction of the first housing and the second housing.

4. The low noise air cleaner of claim 3, wherein the inlet duct is disposed on a first housing surface and the outlet duct is disposed on a second housing surface.

5. The low noise air cleaner of claim 1, wherein said retaining strips are arranged in a perpendicular arrangement with respect to each other, said muffling chamber presenting a grid distribution.

6. The low noise air cleaner of claim 5, wherein the sound-deadening chamber is filled with a sound-absorbing material.

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