CN204877598U - Automobile silencer - Google Patents

Automobile silencer Download PDF

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Publication number
CN204877598U
CN204877598U CN201520569922.4U CN201520569922U CN204877598U CN 204877598 U CN204877598 U CN 204877598U CN 201520569922 U CN201520569922 U CN 201520569922U CN 204877598 U CN204877598 U CN 204877598U
Authority
CN
China
Prior art keywords
casing
core body
pipe
body pipe
core
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201520569922.4U
Other languages
Chinese (zh)
Inventor
马历明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou Jinma Pipe Industry Co Ltd
Original Assignee
Hangzhou Jinma Pipe Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hangzhou Jinma Pipe Industry Co Ltd filed Critical Hangzhou Jinma Pipe Industry Co Ltd
Priority to CN201520569922.4U priority Critical patent/CN204877598U/en
Application granted granted Critical
Publication of CN204877598U publication Critical patent/CN204877598U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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  • Exhaust Silencers (AREA)

Abstract

The utility model relates to an automobile silencer, including the casing, inside intake pipe, core pipe and blast pipe, core pipe are located the casing, the casing wrapping up the acoustic celotex board, the casing be equipped with a plurality of acoustical panels about in crisscrossly, intake -tube connection core pipe, the blast pipe to the core union coupling, core pipe body be equipped with the arc groove of circumference equipartition outward. The utility model discloses a wrap up the casing of acoustic celotex board, and upper and lower the left and right sides is equipped with a plurality of acoustical panels crisscrossly in the casing, and every acoustical panel contact or contactless core pipe, crooked runner has been formed like this in the casing, multiplicable automobile exhaust is in the circuitous distance of casing, noise reduction effectively, and the arc groove that the body was equipped with the circumference equipartition is outward managed to the core, form the narrow structure that meets, slit formula structural texture, because of airflow direction crisscross each other, make noise ability cancel each other out, thereby the effect that reduces low frequency noise has been increased, consequently, the noise cancelling effect of this muffler is good.

Description

Automotive muffler
Technical field
The utility model and auto parts field, particularly, relate to a kind of automotive muffler.
Background technique
The device of the reduction noise on the air-flow path that silencing apparatus is mounted in air powered equipment (as blower, air compressor) or in inlet and exhaust system, it can stop sound wave propagation, permission air-flow passes through, it is the effective tool of control noises, also be the vitals of automobile, as a part for outlet pipe, effectively can reduce the exhaust sound of motor, and high-temp waste gas can be made to discharge safely and effectively.Along with the development of China's automobile industry, improving constantly of engine performance, its noise produced is also increasing, so the research of automotive muffler becomes the emphasis of Automobile Enterprises research.
At present, have a lot of silencing apparatus on the market, it can make the exhaust sound of automobile reduce 20-30 decibel, i.e. 70-80 decibel, but soundproof effect is not good.
Model utility content
Technical problem to be solved by this invention is to provide the good automotive muffler of a kind of soundproof effect.
For realizing goal of the invention, the technical solution used in the present invention is:
A kind of automotive muffler, comprises housing, suction tude, core body pipe and outlet pipe, core body pipe is positioned at enclosure interior, and described housing is wrapped in insulation board, is provided with multiple acoustical panel alternately up and down in described housing, described suction tude connects core body pipe, and described core body pipe is connected to outlet pipe.
As preferably, described acoustical panel contact or do not touch core body pipe.
As preferably, in described acoustical panel, be filled with highdensity silencing cotton.
As preferably, outside described core body pipe body, be provided with the arc groove that circumference is uniform.
As preferably, the arc groove place of described core body pipe body is provided with through hole.
As preferably, described suction tude and core body pipe are for being welded to connect, and described outlet pipe and core body pipe are for being welded to connect.
The utility model adopts the housing being wrapped in insulation board, and multiple acoustical panel is provided with alternately up and down in housing, and each acoustical panel contacts or does not contact core body pipe, bending runner is defined in such housing, vehicle exhaust can be increased in the roundabout distance of housing, effectively can reduce noise, and outside core body pipe body, be provided with the uniform arc groove of circumference, formed and narrowly meet structure, slit structural texture, because airflow direction is interlaced, noise can be cancelled out each other thus add the effect reducing low frequency and make an uproar, the therefore good muffling effect of this baffler.
Accompanying drawing explanation
Fig. 1 is the structural representation of automotive muffler of the present utility model;
Wherein, 1. housing, 2. suction tude, 3. core body pipe, 4. outlet pipe, 5. insulation board, 6. acoustical panel;
Fig. 2 is the sectional view of core body pipe in the utility model automotive muffler.
Embodiment:
Below in conjunction with specific embodiment, the utility model is described.
Embodiment 1
See Fig. 1, a kind of automotive muffler, comprise housing 1, suction tude 2, core body pipe 3 and outlet pipe 4, it is inner that core body pipe 3 is positioned at housing 1, described housing 1 is wrapped in insulation board 5, multiple acoustical panel 6 is provided with up and down alternately in described housing 1, described suction tude 2 connects core body pipe 3, described core body pipe 3 is connected to outlet pipe 4, described acoustical panel contact core body pipe, highdensity silencing cotton is filled with in described acoustical panel 6, the arc groove that circumference is uniform is provided with outside described core body pipe body, the arc groove place of described core body pipe body is provided with through hole, described suction tude and core body pipe are for being welded to connect, described outlet pipe and core body pipe are for being welded to connect.
The utility model adopts the housing being wrapped in insulation board, and multiple acoustical panel is provided with alternately up and down in housing, and each acoustical panel contacts or does not contact core body pipe, bending runner is defined in such housing, vehicle exhaust can be increased in the roundabout distance of housing, effectively can reduce noise, and outside core body pipe body, be provided with the uniform arc groove of circumference, formed and narrowly meet structure, slit structural texture, because airflow direction is interlaced, noise can be cancelled out each other thus add the effect reducing low frequency and make an uproar, the therefore good muffling effect of this baffler.
Above embodiment is described preferred implementation of the present utility model; not scope of the present utility model is limited; under the prerequisite not departing from the utility model design spirit; the various distortion that the common engineers and technicians in related domain make the technical solution of the utility model and improvement, all should fall in protection domain that claims of the present utility model determine.

Claims (6)

1. an automotive muffler, comprise housing, suction tude, core body pipe and outlet pipe, it is characterized in that described core body pipe is positioned at enclosure interior, described housing is wrapped in insulation board, be provided with multiple acoustical panel alternately up and down in described housing, described suction tude connects core body pipe, and described core body pipe is connected to outlet pipe.
2. automotive muffler according to claim 1, is characterized in that described acoustical panel contact or does not touch core body pipe.
3. automotive muffler according to claim 1, is characterized in that being filled with highdensity silencing cotton in described acoustical panel.
4. automotive muffler according to claim 1, is characterized in that being provided with the uniform arc groove of circumference outside described core body pipe body.
5. automotive muffler according to claim 4, is characterized in that the arc groove place of described core body pipe body is provided with through hole.
6. automotive muffler according to claim 1, it is characterized in that described suction tude and core body pipe are for being welded to connect, described outlet pipe and core body pipe are for being welded to connect.
CN201520569922.4U 2015-07-31 2015-07-31 Automobile silencer Expired - Fee Related CN204877598U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520569922.4U CN204877598U (en) 2015-07-31 2015-07-31 Automobile silencer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520569922.4U CN204877598U (en) 2015-07-31 2015-07-31 Automobile silencer

Publications (1)

Publication Number Publication Date
CN204877598U true CN204877598U (en) 2015-12-16

Family

ID=54821981

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520569922.4U Expired - Fee Related CN204877598U (en) 2015-07-31 2015-07-31 Automobile silencer

Country Status (1)

Country Link
CN (1) CN204877598U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110905687A (en) * 2019-11-22 2020-03-24 成都裕鸢航空零部件制造有限公司 Aircraft engine silencer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110905687A (en) * 2019-11-22 2020-03-24 成都裕鸢航空零部件制造有限公司 Aircraft engine silencer

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151216

Termination date: 20160731

CF01 Termination of patent right due to non-payment of annual fee