CN209258032U - A kind of automobile cab sound absorber - Google Patents
A kind of automobile cab sound absorber Download PDFInfo
- Publication number
- CN209258032U CN209258032U CN201822169123.4U CN201822169123U CN209258032U CN 209258032 U CN209258032 U CN 209258032U CN 201822169123 U CN201822169123 U CN 201822169123U CN 209258032 U CN209258032 U CN 209258032U
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- transmission shaft
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- pendulum leaf
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Abstract
The utility model discloses a kind of automobile cab sound absorber, comprising: shell is the hollow rectangular parallelepiped structure of bottom opening；And multiple transmission shafts, it is arranged in the shell, and both ends are rotatably disposed in the shell radially opposite sides, and along the axial equidistant arrangement of the shell；Multiple double-deck pendulum leaves, are rectangular slab, and axial restraint is set on the transmission shaft respectively；Power mechanism, and the transmission axis connection, for driving the transmission shaft to rotate；Wherein, the top surface of the double-deck pendulum leaf is provided with sound-absorbing material layer and towards consistent, and bottom surface is provided with sound reflection layer.By being provided with the double-deck pendulum leaf, noise control transmission shaft rotates whether capable of being closed according to sound system in a vehicle and in driver's cabin, both ensure that driver's cabin sqouynd absorption lowering noise, and had in turn ensured automobile audio result of broadcast.Have the characteristics that structure it is simple, it is light, be easy to industrialized mass production, be cheap, convenient for arranging, be easily installed.
Description
Technical field
The utility model relates to the noise reduction technology fields that absorbs sound in automobile cab, more particularly, the utility model relates to
A kind of automobile cab sound absorber.
Background technique
Currently, with automobile research and development technology and continuous improvement of people's living standards, riding comfort of the people to automobile
It is required that also higher and higher.Noise is an important factor for influencing comfort, and interior noise when in order to inhibit high vehicle speeds is protected
Card vehicle possesses enough sound absorbing powers, and sound-absorbing material is widely applied in vehicle research and development.When due to running car noise compared with
Die needs sound absorber to absorb sound, but when car audio system is worked can be influenced by its sound absorber, to a certain extent
It will affect voice propagation, interior speech intelligibility caused to decline.
Utility model content
One purpose of the utility model is to have designed and developed a kind of automobile cab sound absorber, is provided with the double-deck pendulum
Leaf, noise control transmission shaft rotates whether capable of being closed according to sound system in a vehicle and in driver's cabin, both ensure that driver's cabin
Sqouynd absorption lowering noise in turn ensures automobile audio result of broadcast.
Technical solution provided by the utility model are as follows:
A kind of automobile cab sound absorber, comprising:
Shell is the hollow rectangular parallelepiped structure of bottom opening；And
Multiple transmission shafts are arranged in the shell, and both ends are rotatably disposed in the shell radially opposite sides, and edge
The axial equidistant arrangement of the shell；
Multiple double-deck pendulum leaves, are rectangular slab, and axial restraint is set on the transmission shaft respectively；
Power mechanism, and the transmission axis connection, for driving the transmission shaft to rotate；
Wherein, the top surface of the double-deck pendulum leaf is provided with sound-absorbing material layer and towards consistent, and bottom surface is provided with sound reflection
Layer；When initial position, the top and bottom of the double-deck pendulum leaf are vertical with the housing bottom surface, when the transmission shaft is clockwise
When rotating 0~180o, the top surface of the double-deck pendulum leaf is gradually upward, described when the transmission shaft rotates 0~180o counterclockwise
The bottom surface of bilayer pendulum leaf is gradually upward；When the top surface of the double-deck pendulum leaf or the bottom surface housing bottom surface in parallel, adjacent institute
The distance between adjacent side of the double-deck pendulum leaf is stated as 0~5mm.
Preferably, the power mechanism includes:
Multiple driven wheels fix the both ends of the drive shaft being set in close to the inner walls；
Belt winds the driven wheel, for driving the driven wheel synchronous rotary；
Driving wheel, it is coaxially connected with any one of driven wheel, for driving the driven wheel to rotate；
Driving motor is fixedly installed on the housing, and output end is fixedly connected with the driving wheel, for driving
The driving wheel rotation.
Preferably, further include sound-absorbing material block, the housing top surface and the double-deck sky putting leaf and surrounding are set
In, and be fixedly connected with the housing bottom surface.
Preferably, further includes:
Fixed plate is fixed in the housing top surface；
Through-hole is arranged in the fixed plate, for being fixedly connected with automobile cab ceiling.
Preferably, when the top surface of the double-deck pendulum leaf or the bottom surface housing bottom surface in parallel, the adjacent bilayer
Putting the distance between adjacent side of leaf is 0mm.
Preferably, further includes:
Velocity sensor is arranged on vehicle body, for detecting speed；
Sound transducer is arranged in car steering room, for detecting the noise decibel in car steering room；
Angular transducer is arranged on the transmission shaft, for detecting the rotation angle of transmission shaft；
Controller is connect with the driving motor, for controlling the transmission shaft rotation.
It is described in the utility model the utility model has the advantages that
The automobile cab sound absorber that the utility model is designed and developed is provided with the double-deck pendulum leaf, can be according to interior sound
Noise control transmission shaft rotates whether acoustic system is closed and in driver's cabin, both ensure that driver's cabin sqouynd absorption lowering noise, and had in turn ensured
Automobile audio result of broadcast.It is simple with structure, light, be easy to industrialized mass production, be cheap, convenient for arranging, be easy to
The characteristics of installation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of automobile cab sound absorber described in the utility model.
Fig. 2 is the structural schematic diagram of automobile cab sound absorber described in the utility model.
Fig. 3 is the side structure schematic view of automobile cab sound absorber described in the utility model.
Fig. 4 is the present invention looks up structural representation of automobile cab sound absorber described in the utility model.
Specific embodiment
The following describes the utility model in further detail with reference to the accompanying drawings, to enable those skilled in the art referring to explanation
Book text can be implemented accordingly.
As shown in Figs 1-4, the utility model provides a kind of automobile cab sound absorber, comprising: shell 100 is bottom
The hollow rectangular parallelepiped structure of face opening；And multiple transmission shafts 110, it is arranged in the shell 100, and both ends are rotatable sets
It sets in 100 radially opposite sides of shell, and along the axial equidistant arrangement of shell 100；Multiple double-deck pendulum leaves 120, are rectangular slab, and point
Other axial restraint is set on transmission shaft 110；Power mechanism is connect, for driving the transmission with the transmission shaft 110
Axis 110 rotates.
The top surface of bilayer pendulum leaf 120 is provided with sound-absorbing material layer and towards consistent, and bottom surface is provided with sound reflection layer；Initially
When position, bilayer pendulum leaf 120 top and bottom with 100 plane perpendicular of shell, when transmission shaft 110 rotates clockwise 0
When~180o, the top surface of bilayer pendulum leaf 120 gradually upward, can carry out sqouynd absorption lowering noise to indoor noise is driven.Work as transmission shaft
110 counterclockwise 0~180o of rotation when, the bottom surface of bilayer pendulum leaf 120 gradually upward, can to drive indoor sound carry out it is anti-
It penetrates, improves and drive indoor acoustics.It is adjacent double when the top surface of the double-deck pendulum leaf 120 or parallel 100 bottom surface of shell in bottom surface
The distance between adjacent side of layer pendulum leaf 120 is 0~5mm, and certainly preferred distance is 0mm, i.e. adjacent double-layers put leaf 120
It contacts with each other between adjacent side, can preferably play the role of sound absorption or reflection.
Power mechanism includes: multiple driven wheels 131, fixes 110 liang of transmission shaft be set in close to 100 inner wall of shell
End；Belt 132 winds driven wheel 131, for driving 131 synchronous rotary of driven wheel；Driving wheel (not shown), with
Any one driven wheel 131 is coaxially connected, for driving driven wheel 131 to rotate；Driving motor 133, is fixed at shell
On 100, and output end is fixedly connected with driving wheel (not shown), for driving driving wheel to rotate.I.e. when driving motor 133
When work, output end drives driving wheel rotation, and rotating wheel drives driven wheel 131 connected to it to rotate, in the effect of belt
Under, 132 synchronous rotary of driven wheel, and then 110 synchronous rotary of transmission shaft is driven, it is final to drive multilayer pendulum leaf 120 is synchronous to turn
It is dynamic.
In the space that 110 top surface of shell and the double-deck pendulum leaf 120 surround, and it is fixedly connected and is provided with 100 bottom surface of shell
Sound-absorbing material block (not shown) can assist absorbing sound, and improve sqouynd absorption lowering noise effect.
Fixed plate 140 is fixed on 100 top surface of shell；Through-hole 141 is arranged in fixed plate 140, is used for
It is fixedly connected with automobile cab ceiling.
Velocity sensor is arranged on vehicle body, for detecting speed；Sound transducer is arranged in automobile cab
It is interior, for detecting the noise decibel in car steering room；Angular transducer is arranged on the transmission shaft, passes for detecting
The rotation angle of moving axis；Controller is connect with the driving motor, for controlling transmission shaft rotation.
The automobile cab sound absorber that the utility model is designed and developed is provided with the double-deck pendulum leaf, can be according to interior sound
Noise control transmission shaft rotates whether acoustic system is closed and in driver's cabin, both ensure that driver's cabin sqouynd absorption lowering noise, and had in turn ensured
Automobile audio result of broadcast.It is simple with structure, light, be easy to industrialized mass production, be cheap, convenient for arranging, be easy to
The characteristics of installation.
It is not only in the description and the implementation although the embodiments of the present invention have been disclosed as above
Listed utilization, it can be applied to various fields suitable for the present invention completely, for those skilled in the art,
Other modifications may be easily implemented, therefore without departing from the general concept defined in the claims and the equivalent scope, this reality
It is not limited to specific details and legend shown and described herein with novel.
Claims (6)
1. a kind of automobile cab sound absorber characterized by comprising
Shell is the hollow rectangular parallelepiped structure of bottom opening；And
Multiple transmission shafts are arranged in the shell, and both ends are rotatably disposed in the shell radially opposite sides, and along described
The axial equidistant arrangement of shell；
Multiple double-deck pendulum leaves, are rectangular slab, and axial restraint is set on the transmission shaft respectively；
Power mechanism, and the transmission axis connection, for driving the transmission shaft to rotate；
Wherein, the top surface of the double-deck pendulum leaf is provided with sound-absorbing material layer and towards consistent, and bottom surface is provided with sound reflection layer；Just
When beginning position, the top and bottom of the double-deck pendulum leaf are vertical with the housing bottom surface, when the transmission shaft rotates clockwise 0
At~180 °, the top surface of the double-deck pendulum leaf gradually upward, when the transmission shaft rotates 0~180 ° counterclockwise, the bilayer
Put the bottom surface of leaf gradually upward；It is adjacent described double when the top surface of the double-deck pendulum leaf or the bottom surface housing bottom surface in parallel
The distance between the adjacent side of layer pendulum leaf is 0~5mm.
2. automobile cab sound absorber as described in claim 1, which is characterized in that the power mechanism includes:
Multiple driven wheels fix the both ends of the drive shaft being set in close to the inner walls；
Belt winds the driven wheel, for driving the driven wheel synchronous rotary；
Driving wheel, it is coaxially connected with any one of driven wheel, for driving the driven wheel to rotate；
Driving motor is fixedly installed on the housing, and output end is fixedly connected with the driving wheel, described for driving
Driving wheel rotation.
3. automobile cab sound absorber as claimed in claim 1 or 2, which is characterized in that further include sound-absorbing material block, set
It sets in the space that the housing top surface and the double-deck pendulum leaf surround, and is fixedly connected with the housing bottom surface.
4. automobile cab sound absorber as claimed in claim 3, which is characterized in that further include:
Fixed plate is fixed in the housing top surface；
Through-hole is arranged in the fixed plate, for being fixedly connected with automobile cab ceiling.
5. the automobile cab sound absorber as described in claim 1,2 or 4, which is characterized in that when the top of the double-deck pendulum leaf
Face or bottom surface in parallel the housing bottom surface when, the distance between adjacent side of the adjacent double-deck pendulum leaf is 0mm.
6. automobile cab sound absorber as claimed in claim 2, which is characterized in that further include:
Velocity sensor is arranged on vehicle body, for detecting speed；
Sound transducer is arranged in car steering room, for detecting the noise decibel in car steering room；
Angular transducer is arranged on the transmission shaft, for detecting the rotation angle of transmission shaft；
Controller is connect with the driving motor, for controlling the transmission shaft rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822169123.4U CN209258032U (en) | 2018-12-24 | 2018-12-24 | A kind of automobile cab sound absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822169123.4U CN209258032U (en) | 2018-12-24 | 2018-12-24 | A kind of automobile cab sound absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209258032U true CN209258032U (en) | 2019-08-16 |
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ID=67560880
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822169123.4U Active CN209258032U (en) | 2018-12-24 | 2018-12-24 | A kind of automobile cab sound absorber |
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| Country | Link |
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| CN (1) | CN209258032U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109435866A (en) * | 2018-12-24 | 2019-03-08 | 吉林大学 | A kind of automobile cab sound absorber and its control method |
| CN112849048A (en) * | 2020-12-18 | 2021-05-28 | 南京信息职业技术学院 | Unmanned automobile controller and noise reduction device thereof |
-
2018
- 2018-12-24 CN CN201822169123.4U patent/CN209258032U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109435866A (en) * | 2018-12-24 | 2019-03-08 | 吉林大学 | A kind of automobile cab sound absorber and its control method |
| CN109435866B (en) * | 2018-12-24 | 2024-02-06 | 吉林大学 | Sound absorption device for automobile cab and control method thereof |
| CN112849048A (en) * | 2020-12-18 | 2021-05-28 | 南京信息职业技术学院 | Unmanned automobile controller and noise reduction device thereof |
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