CN220791388U - Muffler device, air inlet system and vehicle - Google Patents

Abstract

The utility model relates to the technical field of engine upper noise elimination, in particular to a noise elimination device, an air inlet system and a vehicle. The muffler device includes a housing, a muffler pipe, and a plurality of partition plates. Wherein, the both ends of casing are used for being connected with air intake system's pipeline cooperation, and the muffler pipe sets up in the inside of casing, and a plurality of sound elimination holes have been seted up to the outer wall circumference of muffler pipe. The plurality of separation plates are arranged on the outer wall of the silencing pipe along the axial direction of the silencing pipe, and are matched with the inner wall of the shell to divide the interior of the shell into a plurality of chambers along the axial direction of the silencing pipe. And at least one silencing hole is formed in each chamber corresponding to the silencing pipe. According to the muffler device provided by the utility model, the diameters of the two ends of the shell are the same as the diameters of the pipelines of the air inlet system, and the muffler device can be directly arranged on the pipelines of the air inlet system, namely, the pipelines of part of the air inlet system are directly replaced, so that the structure is simplified, and the cost is saved.

Description

Muffler device, air inlet system and vehicle

Technical Field

The utility model relates to the technical field of engine upper noise elimination, in particular to a noise elimination device, an air inlet system and a vehicle.

Background

The air inlet noise is one of the most important noise sources of the diesel engine, the muffler is arranged to be the most effective method for controlling the air inlet noise, and the muffler is arranged in the air inlet pipeline of the general diesel engine, so that the pressure fluctuation amplitude of air flow is reduced, and the effect of reducing the noise is achieved.

In the prior art, air entering a muffler is fed into the diesel engine, three separation discs are arranged in the muffler, three cavity areas are formed in the muffler, and sound elimination holes are formed in the pipe wall of the inner pipe of the muffler so as to reduce noise.

However, such prior art diesel engine muffling structures do not directly incorporate or replace the lines of the air intake system. Also, the prior art muffler cannot eliminate noise of a plurality of frequencies.

Disclosure of Invention

The utility model aims to at least solve the problem that the muffler device cannot directly replace an air inlet system pipeline. The aim is achieved by the following technical scheme:

a first aspect of the present utility model proposes a muffler device including:

the two ends of the shell are used for being connected with a pipeline of an air inlet system in a matching way;

the silencing pipe is arranged in the shell, and a plurality of silencing holes are formed in the circumferential direction of the outer wall of the silencing pipe;

the plurality of separation plates are sequentially arranged on the outer wall of the silencing pipe along the axial direction of the silencing pipe, and are matched with the inner wall of the shell to divide the interior of the shell into a plurality of chambers along the axial direction of the silencing pipe;

at least one silencing hole is formed in the silencing pipe corresponding to each cavity.

According to the muffler device provided by the utility model, the diameters of the two ends of the shell are the same as the diameters of the pipelines of the air inlet system, and the muffler device can be directly arranged on the pipelines of the air inlet system, namely, the pipelines of part of the air inlet system are directly replaced, so that the structure is simplified, and the cost is saved. The inside sound-damping pipe that is provided with of casing is provided with the sound-damping hole on the sound-damping pipe, and the division board divides into a plurality of cavities with casing inner space, and every cavity can be to the noise elimination frequency design of difference, so the noise of a plurality of frequencies just can be eliminated to a plurality of cavities, and noise elimination device can eliminate the noise of a plurality of frequencies promptly.

In addition, the muffler device according to the present utility model may have the following additional technical features:

in some embodiments of the utility model, the housing comprises a first housing and a second housing, the first housing and the second housing being connected to form the housing, the first housing having one end of the housing and the second housing having the other end of the housing.

In some embodiments of the utility model, the area of each of the separation plates is different, and the area of the separation plate near the junction of the first housing and the second housing is larger than the area of the separation plate far from the junction of the first housing and the second housing.

In some embodiments of the utility model, the number of chambers is 3-7;

and/or the silencing pipes corresponding to the chambers are provided with different numbers of silencing holes.

In some embodiments of the utility model, the volume of each of the chambers is different.

In some embodiments of the utility model, the sound attenuation holes are in the shape of circular holes or rectangular holes.

In some embodiments of the present utility model, the sound-deadening holes are provided at regular intervals in the circumferential direction of the outer wall of the sound-deadening pipe.

In some embodiments of the utility model, the divider plate is circular or oval in shape.

A second aspect of the present utility model proposes an intake system including:

an air inlet pipe;

an air cleaner, upstream of which communicates with the intake pipe;

a supercharger, wherein the upstream of the supercharger is communicated with the air filter, and the downstream of the supercharger is communicated with a pipeline;

according to the silencing device, two ends of the shell of the silencing device are connected with the pipeline of the air inlet system in a matched mode.

A third aspect of the utility model proposes a vehicle comprising the above-described air intake system.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

fig. 1 schematically shows a schematic structural view of a muffler device according to an embodiment of the present utility model;

fig. 2 schematically shows an exploded structural schematic view of a muffler device according to an embodiment of the present utility model;

fig. 3 schematically shows a schematic structural view of a first embodiment of a sound-damping tube according to the utility model;

fig. 4 schematically shows a schematic structural view of a second embodiment of a sound-damping tube according to the utility model;

fig. 5 schematically shows a schematic structural view of a third embodiment of a sound-damping tube according to the present utility model;

fig. 6 schematically shows a schematic structural view of a fourth embodiment of a sound-damping tube according to the present utility model;

fig. 7 schematically shows a schematic structure of an intake system according to an embodiment of the present utility model.

The reference numerals are as follows:

100. a muffler device; 101. A first port; 102. A second port;

10. a housing; 11. A first housing; 12. A second housing;

20. an acoustic pipe; 21. a circular hole; 22. a rectangular hole;

30. a partition plate;

200. an air inlet pipe; 300. an air cleaner; 400. a supercharger; 500. and (5) a pipeline.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is explicitly stated. It should also be appreciated that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For ease of description, spatially relative terms, such as "inner," "outer," "lower," "below," "upper," "above," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein interpreted accordingly.

As shown in fig. 1 to 2, according to an embodiment of the present utility model, there is provided a muffler device 100, the muffler device 100 including a housing 10, a muffler pipe 20, and a plurality of partition plates 30. Wherein, both ends of the shell 10 are used for being connected with a pipeline 500 of an air inlet system in a matching way, the silencing pipe 20 is arranged in the shell 10, and a plurality of silencing holes are formed in the circumferential outer wall of the silencing pipe 20. The plurality of partition plates 30 are sequentially disposed on the outer wall of the sound-deadening pipe 20 in the axial direction of the sound-deadening pipe 20, and the plurality of partition plates 30 are fitted to the inner wall of the casing 10 to partition the inside of the casing 10 into a plurality of chambers in the axial direction of the sound-deadening pipe 20. And, at least one sound damping hole is opened on the sound damping tube 20 corresponding to each chamber.

According to the muffler device 100 of the present utility model, the diameters of both ends of the housing 10 are the same as those of the pipe 500 of the intake system, and the muffler device 100 can be directly mounted to the pipe 500 of the intake system, i.e., directly replace a part of the pipe 500 of the intake system, simplifying the structure and saving costs. The inside of the shell 10 is provided with the sound-deadening pipe 20, the sound-deadening pipe 20 is provided with the sound-deadening hole, the partition plate 30 divides the inner space of the shell 10 into a plurality of chambers, each chamber can be designed for different sound-deadening frequencies, so that the plurality of chambers can eliminate the noise of a plurality of frequencies, namely, the sound-deadening device 100 can eliminate the noise of a plurality of frequencies.

Specifically, the diameter of both ends of the housing 10 is the same as the diameter of the pipe 500 of the intake system.

It will be appreciated that the housing 10 is provided with a first port 101 and a second port 102 at each end.

In some embodiments, the housing 10 includes a first housing 11 and a second housing 12, the first housing 11 and the second housing 12 being connected to form a complete housing 10, the first housing 11 having a first port 101 of the housing 10 and the second housing 12 having a second port 102 of the housing 10. The housing 10 is configured as the first housing 11 and the second housing 12, so that the muffler pipe 20 and the plurality of partition plates 30 are more easily installed inside the housing 10 during the manufacturing process, and the installation is simpler, so that the manufacturing cost can be reduced.

Specifically, the first housing 11 is provided with a ring along the outer edge thereof at the connection of the second housing 12, and likewise, the second housing 12 is provided with a ring along the outer edge thereof at the connection of the first housing 11. When the muffler pipe 20 and the partition plate 30 are installed in the housing 10, the annular ring of the first housing 11 is aligned with the annular ring of the second housing 12, and compression and sealing are achieved by rotary friction welding.

In some embodiments, the area of each partition plate 30 is different, and the area of the partition plate 30 near the junction of the first housing 11 and the second housing 12 is larger than the area of the partition plate 30 far from the junction of the first housing 11 and the second housing 12. The area of the partition plate 30 is used to correspond to different chambers, and the height of some chambers is high, so that the area of the partition plate 30 is large.

Meanwhile, the reason why the area of the partition plate 30 at the junction of the first housing 11 and the second housing 12 is maximized is that, when the first housing 11 and the second housing 12 are installed, if the partition plate 30 is maximized at the junction of the first housing 11 and the second housing 12, the partition plate 30 is caught in the first housing 11 or the second housing 12 during installation, and the muffler pipe 20 and the partition plate 30 cannot be completely accommodated in the first housing 11 and the second housing 12.

It is understood that the number of chambers is 3 to 7. Different numbers of silencing holes are formed in the silencing pipes 20 corresponding to the chambers respectively.

As shown in fig. 3, in the first embodiment, 5 partition plates 30 are sleeved on the muffler pipe 20, and the 5 partition plates 30 cooperate with the housing 10 to form 6 chambers. Meanwhile, the number of the silencing holes formed in the silencing tubes 20 of the corresponding parts of the chambers is also different, so that the 6 chambers can control noise with different frequencies in the 5. The first chamber is a chamber formed between the first port 101 of the first housing 11 and the port of the muffler pipe 20, and this chamber can buffer air to reduce the flow rate of air.

It will be appreciated that the shape of the sound damping holes is different, the sound damping holes may be circular holes 21 or rectangular holes 22, and the circular holes 21 and the rectangular holes 22 are used for correspondingly eliminating noises with different frequencies.

Specifically, the volumes of the chambers are also different.

The above embodiment is specifically described as having 6 chambers, wherein the first chamber has one port, i.e., the port of the sound-deadening pipe 20, whose volume is 0.49 liter. The second chamber is provided with circular holes 21, the number of the circular holes 21 is 60, and the volume of the second chamber is 0.66 liter. The third chamber is also provided with circular holes 21, the number of the circular holes 21 is 43, and the volume of the third chamber is 1.27 liters. The fourth chamber is also provided with round holes 21, the number of the round holes 21 is 30, and the volume of the fourth chamber is 1.1 liter. The fifth chamber was provided with rectangular holes 22, the number of rectangular holes 22 was 16, and the volume was 0.62 liter. The sixth chamber is also provided with rectangular holes 22, the number of the rectangular holes 22 is 16, and the volume is 0.26 liter. This embodiment is the most preferred embodiment, which has the best noise cancellation effect and a pressure loss of less than 0.5KPa, and which has the least impact on the air intake system of the engine.

It will be appreciated that the muffler holes are evenly spaced on the circumferential outer wall of the muffler pipe 20. The evenly spaced openings in the circumferential outer wall of the muffler pipe 20 help to direct the airflow without causing turbulence and creating new noise problems.

In some embodiments, the shape of the divider plate 30 may be circular or oval. The shape of the partition plate 30 may vary according to the shape of the inner wall of the housing 10, and there are cases where the housing 10 is limited in space and has different structures, so that the partition plate 30 forms a chamber for cooperation with the housing 10, and thus the shape of the partition plate 30 may also vary, and most commonly, the two shapes are circular or elliptical.

As shown in fig. 4, in the second embodiment, the sound deadening holes may be all rectangular holes 22 in shape, and have 6 chambers.

As shown in fig. 5, in the third embodiment, the shape of the sound deadening holes may be all circular holes 21, and have 4 chambers.

As shown in fig. 6, in the fourth embodiment, there are four chambers in total, wherein the sound damping holes of the first two chambers are circular holes 21, and the sound damping holes of the second two chambers are rectangular holes 22.

It will be appreciated that different numbers of chambers and different shaped sound damping holes are required depending on the noise design of different engines. The specific design method comprises the steps of firstly determining the required silencing frequency and silencing capability requirements of the silencing device 100, then determining the positions of the silencing device 100 arranged in the pipeline 500, then designing the number of the silencing pipes 20 and the partition plates 30 and the shell 10 according to the requirements, then calculating the silencing capability of the silencing device 100, completing the design when the requirements are met, and continuously adjusting the number of the silencing pipes 20 and the partition plates 30 and the shell 10 when the requirements are not met.

As shown in fig. 7, the present embodiment further provides an air intake system, including: the intake pipe 200, the air cleaner 300, the supercharger 400, the pipe 500, and the muffler device 100 described above. Wherein, the upstream of the air filter 300 is communicated with the air inlet pipe 200, the upstream of the supercharger 400 is communicated with the air filter 300, the downstream of the supercharger 400 is communicated with the pipeline 500, and two ends of the shell 10 of the muffler device 100 are matched and connected with the pipeline 500.

The air intake system of the embodiment has the following three beneficial effects:

(1) By providing the muffler device 100, the inside of the muffler device 100 is partitioned into a plurality of chambers each of which is separately related to a different noise frequency, so that the intake system of the present embodiment can eliminate noise of a plurality of frequencies.

(2) The partition plate 30 of the muffler device 100 can be increased or decreased according to the need, expanding the range of noise frequencies that the intake system can control.

(3) The muffler device 100 can be directly replaced on the pipe 500 of the air intake system, so that the pressure loss of the muffler device 100 is reduced, and the structure is simple and the cost is low.

The embodiment also provides a vehicle comprising the air inlet system.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims (8)

1. A muffler device, characterized by comprising:

the two ends of the shell are used for being connected with a pipeline of an air inlet system in a matched mode, the shell comprises a first shell and a second shell, the first shell and the second shell are connected to form the shell, the first shell is provided with one end of the shell, and the second shell is provided with the other end of the shell;

the silencing pipe is arranged in the shell, and a plurality of silencing holes are formed in the circumferential direction of the outer wall of the silencing pipe;

the plurality of separation plates are sequentially arranged on the outer wall of the silencing pipe along the axial direction of the silencing pipe, are matched with the inner wall of the shell to divide the interior of the shell into a plurality of chambers along the axial direction of the silencing pipe, and the area of each separation plate is different, and the area of the separation plate close to the joint of the first shell and the second shell is larger than the area of the separation plate far away from the joint of the first shell and the second shell;

at least one silencing hole is formed in the silencing pipe corresponding to each cavity.

2. The muffler device as defined in claim 1, wherein the number of chambers is 3 to 7;

and/or the silencing pipes corresponding to the chambers are provided with different numbers of silencing holes.

3. The muffler device as defined in claim 1, wherein the volumes of the chambers are different.

4. The muffler device as defined in claim 1, wherein the shape of the muffler hole is a circular hole or a rectangular hole.

5. The muffler device according to claim 1, wherein the muffler holes are provided at regular intervals in a circumferential direction of an outer wall of the muffler pipe.

6. The muffler device as defined in claim 1, wherein the partition plate has a circular or elliptical shape.

7. An air intake system, comprising:

an air inlet pipe;

an air cleaner, upstream of which communicates with the intake pipe;

a supercharger, wherein the upstream of the supercharger is communicated with the air filter, and the downstream of the supercharger is communicated with a pipeline;

the muffler device according to any one of claims 1 to 6, both ends of the housing of the muffler device being cooperatively connected with the pipe of the intake system.

8. A vehicle comprising an air intake system according to claim 7.