CN213144569U

CN213144569U - Active noise reduction device for vehicle

Info

Publication number: CN213144569U
Application number: CN202022338969.3U
Authority: CN
Inventors: 杨招桂
Original assignee: Wuhan Kangmei Technology Co ltd
Current assignee: Wuhan Kangmei Technology Co ltd
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2021-05-07
Anticipated expiration: 2030-10-20

Abstract

The utility model relates to a vehicle active noise reduction device, which comprises a main body of an exhaust pipe, wherein the main body of the exhaust pipe consists of an air inlet pipe, a filter device, a silencing pipe, a mounting frame and an air outlet pipe, one end of the air inlet pipe is connected with the filter device, one end of the filter device is connected with the silencing pipe, the mounting frame is arranged at the outer side of the silencing pipe, the air outlet pipe is connected at the other end of the silencing pipe, the utility model discloses a sound absorption hole is arranged in the filter device, after impurities in tail gas are filtered by a filtering oil pad, the tail gas is subjected to noise reduction through the sound absorption hole, the tail gas absorbs noise through the blocking of a convex block in the sound absorption hole, the noise reduction effect is improved, then the tail gas enters the silencing pipe, the noise is further weakened through a shunting channel in the silencing pipe, the mounting frame is arranged at the outer side of the silencing pipe, the silencing, simultaneously, the noise discharged from the interior of the silencing pipe is further absorbed through the sound-absorbing plate, so that the noise reduction effect is enhanced.

Description

Active noise reduction device for vehicle

Technical Field

The utility model relates to a device of making an uproar falls in vehicle initiative belongs to the technical field of making an uproar of falling.

Background

With the increasing popularization of automobiles in economic development of China, people put forward higher and updated requirements on the riding comfort of the whole automobile, and the noise becomes an important index in the riding comfort, but at present, the power machine of most automobiles is an internal combustion engine, a large amount of gas needs to be discharged during combustion, and the existing exhaust pipe can generate larger noise when in use, thereby not only influencing pedestrians outside the automobile, but also reducing the driving experience of drivers.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a device of making an uproar falls in vehicle initiative, through be equipped with the sound absorbing hole in filter equipment, lead to and filter the impurity filtration back of oil blanket in with tail gas, carry out the noise reduction through sound absorbing hole to tail gas, tail gas is through the blockking of the interior protruding piece of sound absorbing hole, absorb the noise, improve the noise reduction effect, then tail gas gets into in the amortization pipe, further weaken the noise through the reposition of redundant personnel passageway in the amortization pipe, be equipped with the mounting bracket through the outside at the amortization pipe, can fix the amortization pipe, reduce the vibration of amortization pipe, further absorb the interior exhaust noise of amortization pipe through the abatvoix simultaneously, the effect of making an uproar falls in the reinforcing, in order to solve the.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a device of making an uproar falls in vehicle initiative, includes the blast pipe main part, the blast pipe main part comprises intake pipe, filter equipment, hush pipe, mounting bracket and outlet duct, the one end and the filter equipment of intake pipe are connected, filter equipment's one end and hush union coupling, the mounting bracket is established in the outside of hush pipe, the other end at hush pipe is connected to the outlet duct.

Furthermore, an oil filter pad and a sound absorption hole are arranged in the filter device, and a convex block is uniformly arranged in the inner cavity of the sound absorption hole.

Furthermore, a sound absorption plate is arranged between the mounting frame and the silencing pipe, and a heat dissipation groove is formed in the mounting frame.

Further, the mounting bracket comprises a first clamping plate and a second clamping plate, and the first clamping plate and the second clamping plate are connected outside the silencing pipe through bolts.

Furthermore, the inner cavity of the silencing pipe is provided with a shunting channel, and sound-absorbing cotton is arranged in the shunting channel.

Furthermore, the two ends of the mounting rack are provided with clamps, and the silencing pipe is connected with the filtering device and the air outlet pipe through the clamps respectively.

The utility model has the advantages that:

1. the tail gas is subjected to noise reduction through the sound absorption hole after impurities in the tail gas are filtered through the filtering oil pad, the tail gas is blocked by the raised blocks in the sound absorption hole, noise is absorbed, the noise reduction effect is improved, then the tail gas enters the sound absorption pipe, and the noise is further weakened through the shunt channel in the sound absorption pipe;

2. the mounting frame is arranged on the outer side of the silencing pipe, so that the silencing pipe can be fixed, vibration of the silencing pipe is reduced, and meanwhile, noise exhausted from the silencing pipe is further absorbed through the sound-absorbing board, and the noise reduction effect is enhanced.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

FIG. 1 is a sectional view of a main structure of an exhaust pipe of an active noise reduction device of a vehicle according to the present invention;

fig. 2 is a schematic view of the internal structure of a filtering device of an active noise reduction device for a vehicle according to the present invention;

FIG. 3 is a schematic view of the internal structure of a muffler pipe of the active noise reduction device of a vehicle according to the present invention;

fig. 4 is a schematic view of the overall structure of the mounting frame of the active noise reduction device of the vehicle of the present invention;

FIG. 5 is a front view of an exhaust pipe main body of the active noise reduction device of the present invention;

reference numbers in the figures: 1. an exhaust pipe main body; 2. an air inlet pipe; 3. a filtration device; 4. a sound-deadening tube; 5. a mounting frame; 6. an air outlet pipe; 7. an oil filter pad; 8. a sound absorption hole; 9. a sound-absorbing panel; 10. a heat sink; 11. a first splint; 12. a second splint; 13. a flow dividing channel; 14. sound-absorbing cotton; 15. and (5) clamping a hoop.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Referring to fig. 1-5, the present invention provides a technical solution:

the utility model provides a device of making an uproar falls in vehicle initiative, includes blast pipe main part 1, blast pipe main part 1 comprises intake pipe 2, filter equipment 3, hush pipe 4, mounting bracket 5 and outlet duct 6, the one end and the filter equipment 3 of intake pipe 2 are connected, filter the back through the oil filter pad 7 in the filter equipment 3 with the impurity in the tail gas filtration, the one end and the hush pipe 4 of filter equipment 3 are connected, the outside at hush pipe 4 is established to mounting bracket 5, the other end at hush pipe 4 is connected to outlet duct 6.

Specifically, as shown in fig. 1, a sound-absorbing plate 9 is arranged between the mounting frame 5 and the silencing pipe 4, noise discharged from the silencing pipe 4 is further absorbed by the sound-absorbing plate 9, and a heat dissipation groove 10 is arranged on the mounting frame 5, so that heat in tail gas can be conveniently discharged.

Specifically, as shown in fig. 2, the filter device 3 is provided with the oil filter pad 7 and the sound absorption hole 8, the inner cavity of the sound absorption hole 8 is uniformly provided with the protruding blocks, and the tail gas absorbs noise through the blocking of the protruding blocks in the sound absorption hole 8, so that the noise reduction effect is improved.

Specifically, as shown in fig. 3, the inner chamber of the hush pipe 4 is provided with a shunting passage 13, sound absorbing cotton 14 is arranged in the shunting passage 13, so that noise can be absorbed while tail gas is filtered, the two ends of the mounting rack 5 are provided with clamping hoops 15, and the hush pipe 4 is connected with the filtering device 3 and the air outlet pipe 6 through the clamping hoops 15 respectively.

Specifically, as shown in fig. 4, the mounting bracket 5 includes a first clamping plate 11 and a second clamping plate 12, and the first clamping plate 11 and the second clamping plate 12 are connected to each other by bolts at the outer side of the silencer duct 4, so that the silencer duct 4 can be fixed, and the vibration of the silencer duct 4 can be reduced.

The utility model discloses the theory of operation:

when tail gas outgoing, after filtering the impurity in the oil filter pad 7 with tail gas through filter equipment 3, carry out the noise reduction through inhaling sound hole 8 to tail gas, tail gas is through inhaling the blockking of protruding piece in the sound hole 8, absorb the noise, improve noise reduction effect, then tail gas gets into in the hush pipe 4, further weakening the noise through the reposition of redundant personnel passageway 13 in the hush pipe 4, be equipped with in the reposition of redundant personnel passageway 13 and inhale sound cotton 14, can absorb the noise when filtering tail gas, be equipped with mounting bracket 5 through the outside at hush pipe 4, can fix hush pipe 4, reduce hush pipe 4's vibration, further absorb hush pipe 4's interior exhaust noise through acoustical panel 9 simultaneously, the reinforcing noise reduction effect.

The above is the preferred embodiment of the present invention, and the technical personnel in the field of the present invention can also change and modify the above embodiment, therefore, the present invention is not limited to the above specific embodiment, and any obvious improvement, replacement or modification made by the technical personnel in the field on the basis of the present invention all belong to the protection scope of the present invention.

Claims

1. The utility model provides a device of making an uproar falls in vehicle initiative, includes blast pipe main part (1), its characterized in that: the exhaust pipe main body (1) is composed of an air inlet pipe (2), a filtering device (3), a silencing pipe (4), a mounting frame (5) and an air outlet pipe (6), one end of the air inlet pipe (2) is connected with the filtering device (3), one end of the filtering device (3) is connected with the silencing pipe (4), the mounting frame (5) is arranged on the outer side of the silencing pipe (4), and the air outlet pipe (6) is connected to the other end of the silencing pipe (4).

2. The active noise reduction device for a vehicle according to claim 1, wherein: the filter device (3) is internally provided with an oil filtering pad (7) and a sound absorbing hole (8), and the inner cavity of the sound absorbing hole (8) is uniformly provided with a convex block.

3. The active noise reduction device for a vehicle according to claim 1, wherein: and a sound-absorbing plate (9) is arranged between the mounting rack (5) and the silencing pipe (4), and a heat dissipation groove (10) is arranged on the mounting rack (5).

4. The active noise reduction device for a vehicle according to claim 1, wherein: the mounting frame (5) comprises a first clamping plate (11) and a second clamping plate (12), and the first clamping plate (11) and the second clamping plate (12) are connected on the outer side of the silencing pipe (4) through bolts.

5. The active noise reduction device for a vehicle according to claim 1, wherein: the inner cavity of the silencing pipe (4) is provided with a shunt passage (13), and sound absorption cotton (14) is arranged in the shunt passage (13).

6. The active noise reduction device for a vehicle according to claim 1, wherein: the two ends of the mounting rack (5) are provided with clamps (15), and the silencing pipe (4) is respectively connected with the filtering device (3) and the air outlet pipe (6) through the clamps (15).