CN103112407A - Car cab sound absorption device with sound absorption areas adjustable - Google Patents
Car cab sound absorption device with sound absorption areas adjustable Download PDFInfo
- Publication number
- CN103112407A CN103112407A CN2013100402804A CN201310040280A CN103112407A CN 103112407 A CN103112407 A CN 103112407A CN 2013100402804 A CN2013100402804 A CN 2013100402804A CN 201310040280 A CN201310040280 A CN 201310040280A CN 103112407 A CN103112407 A CN 103112407A
- Authority
- CN
- China
- Prior art keywords
- double
- pendulum leaf
- car
- sound absorption
- sound
- 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.)
- Granted
Links
Images
Abstract
The invention discloses a car cab sound absorption device with sound absorption areas adjustable. The car cab sound absorption device with the sound absorption areas adjustable comprises a perforated plate which is fixedly connected with a ceiling of a cab, a frame which is fixedly connected with the bottom of the perforated plate and a double-layer pendulum leaf which is arranged in the frame, and further comprises a driving rotating device which is fixedly connected in the frame and connected with the double-layer pendulum leaf, wherein the driving rotating device is used for driving the double-layer pendulum leaf to rotate, and the double-layer pendulum leaf is a composite layer structure composed of a damping material layer and a sound reflection plate layer. The car cab sound absorption device with the sound absorption areas adjustable can adjust the position of the double-pendulum leaf according to different speed of the car, namely, when the speed of the car is high, the damping material layer of the double-layer pendulum leaf faces downward to ensure an enough sound absorption area in the car, when the speed of the car is low, the sound reflection plate layer faces downward to ensure enough reverberation time in the car. The car cab sound absorption device with the sound absorption areas adjustable is suitable for installation on various car ceilings.
Description
Technical field
The invention belongs to the sqouynd absorption lowering noise product scope, relate to the indoor sound absorption product of vehicle drive, specifically the adjustable automobile cab sound absorber of a kind of absorption.
Background technology
At present, along with improving constantly of automobile research and development technology and people's living standard, people require also more and more higher to the travelling comfort of automobile.Noise is the key factor that affects traveling comfort, and the noise when suppressing high vehicle speeds in car guarantees that vehicle has enough sound absorbing powers, and sound absorption materials is widely applied in the vehicle research and development.
But when low vehicle speeds, the internal car noise source is less, and the noise level that each subsystem of vehicle produces is also relatively low, widely applies sound absorption materials can cause the interior absorption of car excessive, and the reverberation time is not enough, causes the interior sound system expressive ability of car not good enough; In addition, the reverberation time deficiency can cause car internal reflection sound less, can affect to a certain extent voice and propagate, and causes speech intelligibility decline in car.
Summary of the invention
For solving the above deficiency that exists in prior art, the invention provides the adjustable automobile cab sound absorber of a kind of absorption, this device can be adjusted the position of double-deck pendulum leaf for the different speed of a motor vehicle, when vehicle high-speed, the sound-absorbing material layer of double-deck pendulum leaf is downward, guarantees that in car, the sound-absorbing amount is sufficient; When vehicle low speed, the sound reflection flaggy is downward, guarantees that the interior reverberation time of car is enough.
For achieving the above object, the technical solution adopted in the present invention is as follows:
The automobile cab sound absorber that a kind of absorption is adjustable, it comprises perforated plate, the framework that is fixed on the perforated plate bottom surface that is fixed on cab ceiling, the bilayer pendulum leaf that is positioned at framework, also comprises being fixed on being connected with bilayer pendulum leaf in framework and being used for driving the driving slewing arrangement that double-deck pendulum leaf rotates; The lamination layer structure of described double-deck pendulum leaf for being consisted of by sound-absorbing material layer and sound reflection flaggy.
As limitation of the invention, it also comprises for the car speed sensor of induction vehicle wheel rotational speed and is used for controlling the controller that drives the slewing arrangement operation;
Described car speed sensor is fixed on wheel brake caliper, and its signal output part is connected with controller;
The signal input part of described controller is connected with the signal output part of car speed sensor, and its mouth is connected with the open-close on-off that drives slewing arrangement.。
As to another kind of restriction the of the present invention, described driving slewing arrangement comprises drive motor and the flower wheel that is fixed on the framework madial wall, the output shaft of drive motor parallel with the turning cylinder of flower wheel and both between be connected with belt; The switch of drive motor is controlled the keying that drives slewing arrangement; One end of described double-deck pendulum leaf is connected mutually with turning cylinder, and the other end and framework are hinged.
As the restriction to aforesaid way, described double-deck pendulum leaf is provided with at least two; Each the corresponding turning cylinder of double-deck pendulum leaf and a flower wheel.
As the restriction to aforesaid way, adjacent two double-deck pendulum leaves are when coplanar, both between gapless.
As of the present invention the third limited, described perforated plate is coated with the ceiling fabric away from the outside face of ceiling.
The present invention also has a kind of restriction, and described perforated plate is provided with reading lamp and fixedly mounts the hole.
Owing to having adopted technique scheme, the present invention compared with prior art, obtained technological advance is:
When speed sensor detected vehicle higher than the setting speed of a motor vehicle, controller just started the driving slewing arrangement, made the double-deck pendulum of driving slewing arrangement drive leaf turn to sound-absorbing material layer downward, thereby effectively guaranteed the interior sound-absorbing amount abundance of car; When speed sensor detects vehicle when setting the speed of a motor vehicle, same controller just starts the driving slewing arrangement, makes to drive slewing arrangement and drive double-deck pendulum leaf to turn to the sound reflection flaggy downward, thereby guarantees in car that the reverberation time is enough; Further, drive the mode that slewing arrangement is arranged to drive motor and flower wheel combination, drive the rotation of double-deck pendulum leaf, this type of drive is simple, be easy to realization.
In sum, the present invention can regulate absorption in operator's compartment according to the speed of a motor vehicle, both guaranteed the sound-absorbing amount under the large noise states of vehicle high-speed, guaranteed again the reverberation time under the little noise states of vehicle low speed, have simple in structure, be easy to industrialized mass production, cheap, the characteristics being convenient to arrange
The present invention is fit to be installed on various roofs of the vehicle.
Description of drawings
Below in conjunction with drawings and the specific embodiments, the present invention is done further to describe in detail.
Fig. 1 is the integral structure schematic diagram of the embodiment of the present invention;
Fig. 2 is the front view of Fig. 1;
Fig. 3 is the A-A view of Fig. 2;
Fig. 4 is the partial enlarged drawing of Fig. 3.
In figure: 1, framework; 2, double-deck pendulum leaf; 21, sound-absorbing material layer; 22, sound reflection flaggy; 3, drive slewing arrangement; 31, drive motor; 32, flower wheel; 33, belt; 34, turning cylinder; 4, perforated plate; 5, reading lamp fixed installation hole; 6, ceiling fabric.
The specific embodiment
Embodiment
The automobile cab sound absorber that a kind of absorption is adjustable, structure comprise perforated plate 4, framework 1, driving slewing arrangement 3, double-deck pendulum leaf 2, car speed sensor and control driving the controller that slewing arrangement 3 moves as shown in Figures 1 and 2.
Perforated plate 4 is rectangle structure, and its end face (be end face below in Fig. 1, the above is the bottom surface) is coated with ceiling fabric 6, is fixed on cab ceiling, and perforated plate 4 is provided with two reading lamps and fixedly mounts hole 5.
Framework 1 is fixed on the bottom surface surrounding of perforated plate 4, drive slewing arrangement 3 and be positioned at framework 1, comprise drive motor 31 and flower wheel 32, as shown in Figures 2 and 3, drive motor 31 is fixed on framework 1 madial wall, flower wheel 32 is provided with six with equidistantly being separated by, is fixed on framework 1 madial wall, and the flower wheel 32 of the leftmost side is positioned at drive motor 31 right sides.
The structure of double-deck pendulum leaf 2 for being composited by sound-absorbing material layer 21 and sound reflection flaggy 22, as shown in Figure 4, double-deck pendulum leaf 2 is rectangular structure, is provided with six, and an end face and the turning cylinder 34 of each double-deck pendulum leaf 2 connect firmly, and the other end and framework 1 are hinged.Distance between adjacent two turning cylinder 34 line of centerss is suitable with the width of pendulum leaf 2, adjacent two double-deck pendulum leaves 2 when coplanar both between gapless.
Car speed sensor is an opto-electronic pickup, and measuring sonde is positioned at a certain wheel brake caliper of vehicle place, and its signal output part is connected with controller, and the signal output part of controller is connected with drive motor 31.Drive motor 31 is provided with forward switch and reversal switch, and controller can be controlled the open and close of main story switch or reversal switch.
The working process of the present embodiment is as follows:
When speed sensor detects vehicle higher than the setting speed of a motor vehicle, controller is controlled drive motor 31 and is opened, drive motor 31 drives flower wheel 32 through belt 33 and rotates, and then flower wheel 32 drives double-deck pendulum leaves 2 by turning cylinder 34, and to turn to sound-absorbing material layer 21 downward, this moment, motor cut out, sound-absorbing material layer 21 can increase the sound-absorbing amount downwards, thereby guarantees that effectively in car, the sound-absorbing amount is sufficient; When speed sensor detects vehicle lower than the setting speed of a motor vehicle, the same manner controller is controlled drive motor 4 and is opened, drive motor 31 drives flower wheel 32 through belt 33 and rotates, and then flower wheel 32 drives double-deck pendulum leaves 2 by turning cylinder 34, and to turn to sound reflection flaggy 22 downward, this moment, motor cut out, reflection flaggy 22 can reduce the sound-absorbing amount downwards, increases the reverberation time, thereby guarantees that effectively in car, sound system is brought into play better.
Claims (7)
1. automobile cab sound absorber that absorption is adjustable,
It is characterized in that:It comprises perforated plate (4), the framework (1) that is fixed on perforated plate (4) bottom surface that is fixed on cab ceiling, the bilayer pendulum leaf (2) that is positioned at framework (1), also comprises being fixed on being connected with double-deck pendulum leaf (2) in framework (1) and being used for driving the driving slewing arrangement (3) that double-deck pendulum leaf (2) rotates; Described double-deck pendulum leaf (2) is the lamination layer structure that is made of sound-absorbing material layer (21) and sound reflection flaggy (22).
2. the adjustable automobile cab sound absorber of absorption according to claim 1,
It is characterized in that:It also comprises for the car speed sensor of induction vehicle wheel rotational speed and is used for controlling the controller that drives slewing arrangement (3) operation;
Described car speed sensor is fixed on wheel brake caliper, and its signal output part is connected with controller;
The signal input part of described controller is connected with the signal output part of car speed sensor, and its mouth is connected with the open-close on-off that drives slewing arrangement (3).
3. the sound absorber of adjustable automobile operator's compartment absorption according to claim 1 and 2,
It is characterized in that:
Described driving slewing arrangement (3) comprises the drive motor (31) that is fixed on framework (1) madial wall and flower wheel (32), the output shaft of drive motor (31) parallel with the turning cylinder (34) of flower wheel (32) and both between be connected with belt (33); The switch of drive motor (31) is controlled the keying that drives slewing arrangement (3);
One end of described double-deck pendulum leaf (2) is connected mutually with turning cylinder (34), and the other end and framework (1) are hinged.
4. the adjustable automobile cab sound absorber of absorption according to claim 3,
It is characterized in that:
Described double-deck pendulum leaf (2) is provided with at least two;
The corresponding turning cylinder (34) of each double-deck pendulum leaf (2) and a flower wheel (32).
5. the adjustable automobile cab sound absorber of absorption according to claim 4,
It is characterized in that:Adjacent two double-deck pendulum leaves (2) when coplanar both between gapless.
6. the adjustable automobile cab sound absorber of absorption according to claim 1,
It is characterized in that:Described perforated plate (4) is coated with ceiling fabric (6) away from the outside face of ceiling.
7. the adjustable automobile cab sound absorber of absorption according to claim 1,
It is characterized in that:Described perforated plate (4) is provided with reading lamp and fixedly mounts hole (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310040280.4A CN103112407B (en) | 2013-02-01 | 2013-02-01 | Car cab sound absorption device with sound absorption areas adjustable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310040280.4A CN103112407B (en) | 2013-02-01 | 2013-02-01 | Car cab sound absorption device with sound absorption areas adjustable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103112407A true CN103112407A (en) | 2013-05-22 |
| CN103112407B CN103112407B (en) | 2015-05-27 |
Family
ID=48410817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310040280.4A Active CN103112407B (en) | 2013-02-01 | 2013-02-01 | Car cab sound absorption device with sound absorption areas adjustable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103112407B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106882127A (en) * | 2017-02-17 | 2017-06-23 | 湖南湖大艾盛汽车技术开发有限公司 | A kind of adjustable automobile cab sound absorber of absorption |
| CN109435866A (en) * | 2018-12-24 | 2019-03-08 | 吉林大学 | A kind of automobile cab sound absorber and its control method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1022721A2 (en) * | 1999-01-19 | 2000-07-26 | Draftex Industries Limited | Sound absorbing structures |
| JP2010076498A (en) * | 2008-09-24 | 2010-04-08 | Mazda Motor Corp | Sound absorbing structure of vehicle |
| JP2011057000A (en) * | 2009-09-07 | 2011-03-24 | Yamaha Corp | Acoustic resonance device |
| CN201849420U (en) * | 2010-11-13 | 2011-06-01 | 成炳领 | Heat/sound insulation compartment |
| CN101835660B (en) * | 2007-10-23 | 2012-09-12 | 丰田自动车株式会社 | Vehicle interior structure |
-
2013
- 2013-02-01 CN CN201310040280.4A patent/CN103112407B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1022721A2 (en) * | 1999-01-19 | 2000-07-26 | Draftex Industries Limited | Sound absorbing structures |
| CN101835660B (en) * | 2007-10-23 | 2012-09-12 | 丰田自动车株式会社 | Vehicle interior structure |
| JP2010076498A (en) * | 2008-09-24 | 2010-04-08 | Mazda Motor Corp | Sound absorbing structure of vehicle |
| JP2011057000A (en) * | 2009-09-07 | 2011-03-24 | Yamaha Corp | Acoustic resonance device |
| CN201849420U (en) * | 2010-11-13 | 2011-06-01 | 成炳领 | Heat/sound insulation compartment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106882127A (en) * | 2017-02-17 | 2017-06-23 | 湖南湖大艾盛汽车技术开发有限公司 | A kind of adjustable automobile cab sound absorber of absorption |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103112407B (en) | 2015-05-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103231969A (en) | Low-noise elevator car internal ventilation and air deflecting system | |
| CN103112407B (en) | Car cab sound absorption device with sound absorption areas adjustable | |
| JP2008258863A5 (en) | ||
| JP2007001375A (en) | Railway vehicle with sound absorption structure panel | |
| US20140238261A1 (en) | Vehicle Vibration Suppression Device | |
| CN103850634A (en) | Replaceable dual-layer shutter with anti-haze and denoising functions | |
| CN209258032U (en) | A kind of automobile cab sound absorber | |
| CN105275782B (en) | A kind of compressor of air conditioner oise damping means | |
| CN201614671U (en) | Soundproof wall | |
| CN103303150A (en) | Wheel edge retarder for trailer and control method of retarder | |
| CN202071778U (en) | Noise-reducing water-blocking film of automobile | |
| CN206969961U (en) | The car mute structure of home lift | |
| CN201874423U (en) | Sound absorption and insulation structure of sound insulation door | |
| CN206537237U (en) | A kind of acoustical cotton for vehicular coat and hat rack | |
| CN211256727U (en) | Novel bridge is with giving sound insulation device | |
| KR100655410B1 (en) | Sun visor angle control apparatus for car | |
| CN2936882Y (en) | Dumping device fordriver's cab of truck | |
| CN204111148U (en) | The windproof constipation structure of express elevator layer door, gate | |
| KR100802412B1 (en) | System for decreasing noise of sun roof for vehicle | |
| CN106627355A (en) | Motor vehicle automatic toning whistling horn | |
| CN101389561A (en) | Elevator car | |
| CN112160228A (en) | Single-groove type pavement grooving machine for municipal concrete roads | |
| CN207749751U (en) | A kind of sliceable anion facing paper to purify the air of a room | |
| CN107813841A (en) | Abatvoix under a kind of subway seat | |
| CN205523583U (en) | Automatic control car sunshade device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191226 Address after: 314200 north side of Rongrong Road, east side of Pingshan Avenue, Pinghu Economic and Technological Development Zone, Jiaxing City, Zhejiang Province Patentee after: Pinghu branch of Great Wall Motor Co., Ltd Address before: 071000 No. 2266 Chaoyang South Street, Hebei, Baoding Patentee before: Changcheng Automobile Co., Ltd. |