CN114248847B - Cabin cover with modularized noise elimination function - Google Patents
Cabin cover with modularized noise elimination function Download PDFInfo
- Publication number
- CN114248847B CN114248847B CN202011003404.8A CN202011003404A CN114248847B CN 114248847 B CN114248847 B CN 114248847B CN 202011003404 A CN202011003404 A CN 202011003404A CN 114248847 B CN114248847 B CN 114248847B
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- CN
- China
- Prior art keywords
- air inlet
- cabin cover
- volume cavity
- cavity module
- cover body
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
- B62D25/105—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles for motor cars
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/08—Insulating elements, e.g. for sound insulation
- B60R13/0838—Insulating elements, e.g. for sound insulation for engine compartments
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/16—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines characterised by use in vehicles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Transportation (AREA)
- Air-Conditioning For Vehicles (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The application discloses a cabin cover with a modularized noise elimination function, which comprises a cabin cover body, a variable air inlet volume cavity module and an air inlet channel, wherein the variable air inlet volume cavity module is arranged in the cabin cover body and can adjust the volume of the variable air inlet volume cavity module; the two sides of the cabin cover body are provided with air inlets which are communicated with the air inlet channel, and the variable air inlet volume cavity module is communicated with the air inlet channel; the cabin cover further comprises a fixed air inlet volume cavity module, wherein the fixed air inlet volume cavity module is arranged inside the cabin cover body, and the fixed air inlet volume cavity module is communicated with the air inlet channel. The cabin cover comprises an openable fixed air inlet volume cavity module and a variable air inlet volume cavity module, and can regulate and control the total volume of an acoustic cavity of an air inlet system, so that noise of the air inlet system of the engine is reduced, and the joint of the cabin cover and a peripheral system is reduced by adopting a coupling lap joint type sealing rubber strip.
Description
Technical Field
The application belongs to the technical field of automobile noise control, and particularly relates to a cabin cover with a modularized noise elimination function.
Background
With the development of the heavy-duty car industry, the target user group is gradually younger, the car driving comfort is more and more concerned, and the NVH performance of the heavy-duty commercial car is also slowly valued. The high-power engine of the commercial vehicle is accompanied by an oversized noise source, so that the sound insulation and noise reduction work difficulty is also huge, and particularly for the design of a long-head truck, the engine is arranged in front, and the noise is easily transmitted to the ears of a driver in the vehicle.
Disclosure of Invention
In order to solve the problems that the noise generated by a front engine in the related art is large and is easily transmitted to the ears of a driver in a vehicle;
The application provides a cabin cover with a modularized noise elimination function, which comprises a cabin cover body, a variable air inlet volume cavity module and an air inlet channel, wherein the variable air inlet volume cavity module is arranged in the cabin cover body and can adjust the volume of the variable air inlet volume cavity module;
The cabin cover body both sides set up the air inlet, the air inlet with the intercommunication in the intake duct, variable intake volume cavity module with communicate in the intake duct.
Optionally, the variable intake volume cavity module includes a variable intake volume cavity body and a volume adjustment valve for adjusting the volume of the variable intake volume cavity body.
Optionally, the variable intake volume cavity module further includes a connection port, where the connection port is used to dock with a connection port of the muffler module provided on the intake duct.
Optionally, the cabin cover further includes a fixed intake volume cavity module, the fixed intake volume cavity module is disposed inside the cabin cover body, and the fixed intake volume cavity module is communicated with the air inlet channel.
Optionally, the fixed intake volume cavity module is a group of two sides arranged in the cabin cover body.
Optionally, the fixed intake volume cavity module comprises a fixed volume cavity and an opening and closing valve arranged at the joint of the fixed volume cavity and the intake duct and used for controlling the opening and closing of the fixed volume cavity.
Optionally, the cabin cover body comprises two parts of a cabin cover outer plate and a cabin cover inner plate, and the fixed volume cavity and the air inlet channel are formed by the cabin cover inner plate.
Optionally, the front wall accessory and the side decoration plate of the vehicle body and the cabin cover body form lap joint relation through sealing rubber strips.
Optionally, an air filter air inlet is formed in the air inlet channel, and the air filter of the air inlet system is fixedly connected to the air filter air inlet.
Optionally, the cabin cover further comprises a sealing rubber strip assembly, and the sealing rubber strip assembly comprises a first sealing rubber strip at the joint of the air inlet of the air filter and the air filter of the air inlet system, a second sealing rubber strip at the joint of the cabin cover body and the front wall accessory of the vehicle body, and a third sealing rubber strip at the joint of the cabin cover body and the side decorative plate.
Compared with the prior art, the application has the following beneficial technical effects:
The cabin cover utilizes the structural characteristics of the cabin cover, and is provided with a fixed air inlet volume cavity module, a variable air inlet volume cavity module and a systematic coupling lap joint type sealing rubber strip; the opening and closing valve of the air inlet volume cavity module is fixed through controlling the engine hatch cover, or the volume regulating valve of the variable air inlet volume cavity module is controlled to match different engine air inlet system volumes, and the acoustic cavity modal frequency of the air inlet system is regulated to eliminate air inlet system noise; the cabin cover and the attachment are subjected to joint strip coupling lap joint, so that the leakage amount of noise is effectively controlled.
Drawings
FIG. 1 is a schematic diagram of an axial structure of a nacelle cover with a modularized noise elimination function;
FIG. 2 is a schematic diagram of an axial structure of a nacelle cover with a modularized noise elimination function;
FIG. 3 is a top view of the nacelle cover body provided by the present application;
FIG. 4 is a bottom view of the nacelle cover body provided by the application;
FIG. 5 is a bottom view of the nacelle cover body provided by the application;
FIG. 6 is a schematic view of a variable intake volume cavity module according to the present application;
FIG. 7 is a rear view of a nacelle cover with modular sound damping capability provided by the present application;
FIG. 8 is a cross-sectional view of C-C of FIG. 7;
FIG. 9 is a detailed schematic diagram of FIG. 8A;
FIG. 10 is a detailed schematic diagram at B in FIG. 8;
FIG. 11 is an enlarged view of the structure of FIG. 8 at D;
FIG. 12 is a section view H-H of FIG. 11;
fig. 13 is a schematic view of the main internal structure of the cabin cover body provided by the application.
Description of the reference numerals
The engine room cover body 1, the engine room cover outer plate 11, the engine room cover inner plate 12, the air inlet 13, the noise elimination module connection port 14, the air filter air inlet 15, the fixed intake volume cavity module 2, the fixed volume cavity 21, the opening and closing valve 22, the variable intake volume cavity module 3, the variable intake volume cavity body 31, the volume adjusting valve 32, the connection port 33, the sealing rubber strip assembly 4, the first engine room cover rubber strip 41, the air filter rubber strip 42, the front wall accessory rubber strip 43, the second engine room cover rubber strip 44, the third engine room cover rubber strip 45, the decorative board rubber strip 46, the air filter 5 of the air intake system, the front wall accessory 6 of the vehicle body, the side decorative board 7 and the air inlet duct 8.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present application, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the product of the application, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
The technical scheme of the present application will be explained in conjunction with specific embodiments.
As shown in fig. 1-13, the cabin cover with the modularized noise elimination function comprises a cabin cover body 1, a variable air inlet volume cavity module 3 and an air inlet channel 8, wherein the variable air inlet volume cavity module 3 is arranged inside the cabin cover body 1 and can adjust the volume of the variable air inlet volume cavity module;
The two sides of the cabin cover body 1 are provided with air inlets 13, the air inlets 13 are communicated with the air inlet channel 8, and the variable intake volume cavity module 3 is communicated with the air inlet channel 8;
Through the variable air inlet volume cavity module 3 which can adjust the volume of the engine is arranged in the cabin cover body 1, the volume of an air inlet system of the engine can be adjusted when the engine works, so that the noise of the air inlet system is regulated and controlled, an air inlet 13 is used for air inlet when the engine works, and the inlet air enters the engine after passing through an air inlet channel 8.
Specifically, the variable intake volume cavity module 3 includes a variable intake volume cavity body 31 and a volume adjusting valve 32 for adjusting the volume of the variable intake volume cavity body 31; the variable intake volume cavity module 3 further comprises a connection port 33, and the connection port 33 is used for being in butt joint with a silencing module connection port 14 formed on the intake duct 8; when it is desired to adjust the intake system volume, the volume control valve 32 is simply operated while the engine is operating.
Further, the cabin cover further comprises a fixed air inlet volume cavity module 2, the fixed air inlet volume cavity module 2 is arranged inside the cabin cover body 1, and the fixed air inlet volume cavity module 2 is communicated with the air inlet channel 8; the air inlet volume cavity module 2 is fixed, so that the purpose of adjusting the volume of an air inlet system of an engine can be achieved, and the noise of the air inlet system is regulated and controlled.
Specifically, the fixed intake volume cavity module 2 includes a fixed volume cavity 21, and an on-off valve 22 disposed at a connection portion of the fixed volume cavity 21 and the intake duct 8 and used for controlling the opening and closing of the fixed volume cavity 21; the provision of the opening/closing valve 22 can ensure the opening/closing control of the fixed volume chamber, and when the engine is operated, the opening/closing valve 22 on both sides can be selectively opened/closed, and the volume of the engine intake system can be adjusted, thereby controlling the noise of the intake system.
Furthermore, in order to make the volume adjustment range of the air intake system larger, the fixed air intake volume cavity module 2 is a group arranged at two sides of the interior of the cabin cover body 1.
In one implementation manner, the nacelle cover body 1 includes two parts, namely, a nacelle cover outer plate 11 and a nacelle cover inner plate 12, and the fixed volume cavity 21 and the air inlet duct 8 are both formed by the nacelle cover inner plate 12, that is, the fixed volume cavity 21 and the air inlet duct 8 are all formed as a structural member integrally formed with the nacelle cover body 1.
In one possible manner, the front wall attachment 6 and the side trim 7 of the vehicle body are in lap joint with the cabin cover body 1 through sealing rubber strips; an air filter air inlet 15 is formed in the air inlet channel 8, and the air filter 5 of the air inlet system is fixedly connected to the air filter air inlet 15.
Further, the cabin cover further comprises a sealing rubber strip assembly 4, wherein the sealing rubber strip assembly 4 comprises a first sealing rubber strip at the joint of the air filter air inlet 15 and the air filter 5 of the air inlet system, a second sealing rubber strip at the joint of the cabin cover body 1 and the vehicle body front wall accessory 6 and a third sealing rubber strip at the joint of the cabin cover body 1 and the side decorative plate 7;
The first sealing rubber strip comprises a first cabin cover rubber strip 41 which is connected to the air filter air inlet 15 in a staggered and overlapped mode and an air filter rubber strip 42 which is connected to the air filter 5 of the air inlet system; the second sealing adhesive tape comprises a second cabin cover adhesive tape 44 which is connected to the cabin cover body 1 and is in staggered lap joint with each other and a front surrounding accessory adhesive tape 43 which is connected to the front surrounding accessory 6 of the vehicle body; the third sealing adhesive tape comprises a third cabin cover adhesive tape 45 which is connected to the cabin cover body 1 in a staggered and overlapped mode and a decorative board adhesive tape 46 which is connected to the side decorative board 7; after the sealing rubber strip is arranged, the sound leakage quantity is reduced, and the radiation noise of the engine to the inside and the outside of the vehicle is reduced.
In summary, the cabin cover is applicable to different long-head truck engine air intake systems, and the noise elimination module can be selectively applied to noise conditions of the air intake systems. One or more cavity volume modes are selected by controlling the opening and closing valve 22 of the fixed intake volume cavity module 2 or by controlling the volume regulating valve 32 of the variable intake volume cavity module 3 to match different engine air intake systems, so that the acoustic cavity modal resonance frequency of the air intake systems is eliminated, and the noise of the engine air intake systems is reduced. Under the closed state of the cabin cover, the lap joint sealing of the cabin cover and the attachment is ensured, the leakage quantity of noise is reduced, and the radiation noise of the engine to the outside is reduced.
The embodiments given above are preferred examples for realizing the present application, and the present application is not limited to the above-described embodiments. Any immaterial additions and substitutions made by those skilled in the art according to the technical features of the technical scheme of the application are all within the protection scope of the application.
Claims (5)
1. The engine room cover with the modularized noise elimination function is characterized by comprising an engine room cover body (1), a variable air inlet volume cavity module (3) and an air inlet channel (8), wherein the variable air inlet volume cavity module is arranged in the engine room cover body (1) and can adjust the volume of the engine room cover;
air inlets (13) are formed in two sides of the cabin cover body (1), the air inlets (13) are connected with the air inlet channel (8) in an internal mode, and the variable air inlet volume cavity module (3) is communicated with the air inlet channel (8) in an internal mode;
The variable intake volume cavity module (3) comprises a variable intake volume cavity body (31) and a volume adjusting valve (32) for adjusting the volume of the variable intake volume cavity body (31);
The cabin cover further comprises a fixed air inlet volume cavity module (2), the fixed air inlet volume cavity module (2) is arranged inside the cabin cover body (1), and the fixed air inlet volume cavity module (2) is communicated with the air inlet channel (8);
The fixed air inlet volume cavity module (2) is a group arranged at two sides of the interior of the cabin cover body (1);
The fixed air inlet volume cavity module (2) comprises a fixed volume cavity (21) and an opening and closing valve (22) which is arranged at the joint of the fixed volume cavity (21) and the air inlet channel (8) and is used for controlling the opening and closing of the fixed volume cavity (21);
the cabin cover body (1) comprises two parts, namely an outer cabin cover plate (11) and an inner cabin cover plate (12), and the fixed-volume cavity (21) and the air inlet channel (8) are formed by the inner cabin cover plate (12).
2. Cabin cover with modular sound damping function according to claim 1, characterized in that the variable intake volume cavity module (3) further comprises a connection port (33), the connection port (33) being adapted to interface with a sound damping module connection port (14) provided on the inlet duct (8).
3. A cabin cover with modular sound damping function according to claim 2, characterized in that the vehicle body front wall attachment (6) and the side trim panels (7) are in overlapping relation with the cabin cover body (1) through sealing strips.
4. A nacelle cover with modular sound damping function according to claim 3, characterized in that the air inlet duct (8) is provided with an air filter air inlet (15), and the air filter (5) of the air inlet system and the nacelle cover body (1) are fixedly connected to the air filter air inlet (15).
5. The cabin cover with the modularized silencing function according to claim 4, wherein the cabin cover further comprises a sealing rubber strip assembly (4), the sealing rubber strip assembly (4) comprises a first sealing rubber strip at the joint of the air filter air inlet (15) and the air filter (5) of the air inlet system, a second sealing rubber strip at the joint of the cabin cover body (1) and the vehicle body front wall accessory (6) and a third sealing rubber strip at the joint of the cabin cover body (1) and the side decorative plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011003404.8A CN114248847B (en) | 2020-09-22 | 2020-09-22 | Cabin cover with modularized noise elimination function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011003404.8A CN114248847B (en) | 2020-09-22 | 2020-09-22 | Cabin cover with modularized noise elimination function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114248847A CN114248847A (en) | 2022-03-29 |
| CN114248847B true CN114248847B (en) | 2024-08-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011003404.8A Active CN114248847B (en) | 2020-09-22 | 2020-09-22 | Cabin cover with modularized noise elimination function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114248847B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212890602U (en) * | 2020-09-22 | 2021-04-06 | 陕西汽车集团有限责任公司 | Cabin cover with modularized noise elimination function |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2888555B1 (en) * | 2005-07-18 | 2007-10-19 | Renault Sas | FRONT HOOD FOR MOTOR VEHICLE |
| JP5135237B2 (en) * | 2009-01-15 | 2013-02-06 | 本田技研工業株式会社 | Cylinder deactivation internal combustion engine |
| GB2497143B (en) * | 2012-01-20 | 2014-07-30 | Jaguar Land Rover Ltd | Motor vehicle with improved air intake apparatus |
| CN203308547U (en) * | 2013-05-29 | 2013-11-27 | 长城汽车股份有限公司 | Silencer, engine provided with silencer and vehicle |
-
2020
- 2020-09-22 CN CN202011003404.8A patent/CN114248847B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212890602U (en) * | 2020-09-22 | 2021-04-06 | 陕西汽车集团有限责任公司 | Cabin cover with modularized noise elimination function |
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| Publication number | Publication date |
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| CN114248847A (en) | 2022-03-29 |
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| CB02 | Change of applicant information |
Country or region after: China Address after: 710200 Jingwei Industrial Park, economic development zone, Xi'an City, Shaanxi Province Applicant after: Shaanxi Automobile Group Co.,Ltd. Address before: 710200 Jingwei Industrial Park, Xi'an Economic and Technological Development Zone, Shaanxi Province Applicant before: SHAANXI AUTOMOBILE GROUP Co.,Ltd. Country or region before: China |
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