CN219888591U - New energy vehicle skateboard chassis and frame damping sound insulation rubber-sandwiched board material - Google Patents
New energy vehicle skateboard chassis and frame damping sound insulation rubber-sandwiched board material Download PDFInfo
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- CN219888591U CN219888591U CN202222545078.4U CN202222545078U CN219888591U CN 219888591 U CN219888591 U CN 219888591U CN 202222545078 U CN202222545078 U CN 202222545078U CN 219888591 U CN219888591 U CN 219888591U
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- noise
- reducing
- new energy
- metal
- chassis
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- 238000013016 damping Methods 0.000 title claims abstract description 26
- 238000009413 insulation Methods 0.000 title claims description 19
- 239000000463 material Substances 0.000 title description 3
- 229910052751 metal Inorganic materials 0.000 claims abstract description 52
- 239000002184 metal Substances 0.000 claims abstract description 52
- 239000010410 layer Substances 0.000 claims abstract description 25
- 239000012790 adhesive layer Substances 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 230000003313 weakening effect Effects 0.000 claims abstract description 4
- 239000003292 glue Substances 0.000 claims description 10
- 239000011229 interlayer Substances 0.000 claims description 7
- 230000035939 shock Effects 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 229910000861 Mg alloy Inorganic materials 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims 1
- 230000008030 elimination Effects 0.000 description 6
- 238000003379 elimination reaction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000012774 insulation material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000005340 laminated glass Substances 0.000 description 3
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000002648 laminated material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
Landscapes
- Vibration Prevention Devices (AREA)
- Laminated Bodies (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The utility model relates to a new energy vehicle skateboard chassis and a vehicle frame damping sound-insulating laminated board, which comprises a plurality of layers of metal boards which are correspondingly arranged, wherein two adjacent metal boards are bonded through an adhesive layer, the adhesive layer forms a sound-insulating damping part between the metal boards, and a damping sound-insulating laminated board structure for weakening and attenuating sound transmission is formed; the adhesive layer forms the buffer of vibration transmission between the metal plates and forms an active damping type adhesive-sandwiched plate structure; and the noise-reducing and shock-absorbing integrated laminated board is formed by combination.
Description
Technical Field
The utility model relates to the technical field of noise reduction, in particular to an automobile noise reduction technology, and specifically relates to a new energy automobile skateboard chassis and frame damping, sound insulation and glue-laminated board.
Background
The laminated material is widely applied to laminated glass on buildings, and has good sound insulation effect; the laminated glass generally can effectively reduce wind noise, but has no effect on road noise and tire noise which are mainly transmitted upwards through the chassis of the automobile.
The noise source of the conventional gasoline or diesel vehicle is complicated. The main noise sources include engine noise, exhaust pipe noise, engine air inlet noise, air conditioner air outlet noise, wind noise and road noise; in particular road noise: noise generated by friction between the automobile tire and the road surface is conducted to the automobile chassis through the four-wheel shock absorber and then is transmitted into the automobile through the chassis; because road noise is mainly low-frequency noise and is difficult to block by a passive sound insulation material designed by an automobile, most of the road noise is still conducted into the automobile, and the sound volume is very large, and although the low-frequency noise is not as harsh as the medium-high-frequency noise, the sound volume of the road noise is much higher than the medium-high-frequency noise, so that a bombing sound is formed; drivers may be familiar with such low frequency road noise, and neglect their hearing and physical harm.
The fastest growing new energy vehicles are currently available, most of which are electric vehicles, and the electric vehicles have no engine, no exhaust pipe and no air inlet.
The electric vehicle is quite quiet, and because the sound of the motor is quite small, road noise caused by friction between tires and road surfaces rises to become a first noise source for the electric vehicle, and wind noise is the second noise source.
Wind noise can be improved by optimizing aerodynamic design and sound insulation materials, such as replacing a huge prominent rearview mirror with a camera to improve the aerodynamic performance of the automobile; or a laminated glass window is adopted to reduce wind noise; and can be further eliminated by using another active noise elimination technology of the glass window invented by the inventor. But low frequency road noise from the chassis of the automobile is difficult to isolate by these methods.
Therefore, a new energy vehicle skateboard chassis and a vehicle frame damping sound insulation laminated board are needed to solve the problems.
Disclosure of Invention
The utility model aims to provide a new energy vehicle skateboard chassis and a vehicle frame damping sound-insulating laminated board.
The utility model realizes the aim through the following technical scheme:
a new energy vehicle skateboard chassis and frame damping sound insulation rubber-sandwiched board comprises a plurality of layers of metal boards which are correspondingly arranged, wherein two adjacent metal boards are bonded through a rubber layer, the rubber layer forms a sound insulation damping part between the metal boards, and a damping sound insulation rubber-sandwiched board structure for weakening and attenuating sound transmission is formed;
the adhesive layer forms the buffer of vibration transmission between the metal plates and forms an active damping type adhesive-sandwiched plate structure;
and the noise-reducing and shock-absorbing integrated laminated board is formed by combination.
Furthermore, the noise-reducing and vibration-reducing integrated laminated board is used as the uppermost metal board of a new energy vehicle skateboard chassis or a vehicle frame or the innermost metal board facing the vehicle to form a damping and sound-insulating vehicle body structure for preventing road noise and tire noise from being transmitted into the vehicle through the chassis or the vehicle frame.
Further, the glue layer is composed of PVB, SGP, EVA, PU, DT, DEV.
Further, the adhesive layer is formed by PVB.
Further, the noise-reducing and vibration-reducing integrated laminated board is pressed by a hot press to discharge middle air, and then the middle air is placed into a high-pressure steam kettle to dissolve a small amount of residual air into a glue film by utilizing high temperature and high pressure, so that a compact pressing-type noise-reducing and vibration-reducing integrated laminated board structure is formed.
Further, the new energy vehicle skateboard chassis comprises an upper layer metal panel and a lower layer metal panel, a honeycomb-shaped interlayer is arranged between the upper layer metal panel and the lower layer metal panel, the interlayer is used for placing a battery pack or an electronic control and communication module, and the noise-reducing and vibration-reducing integrated laminated board is used as the upper layer metal panel to form an upper layer metal panel active vibration-reducing and noise-reducing structure correspondingly connected with an automobile cabin.
Further, the metal plate is a steel plate or an aluminum magnesium alloy plate.
Compared with the prior art, the utility model has the beneficial effects that:
1) The active noise elimination in a large space in the automobile is realized through the automobile chassis, and the weak link noise elimination at the entrance of the road noise into the automobile is realized, so that the entrance of the noise is isolated, and the problem of low-frequency road noise in the automobile is fundamentally solved;
2) The noise-reducing and vibration-reducing integrated structure formed by the laminated metal plate is used for effectively isolating low-frequency road noise and tire noise of the automobile chassis;
3) Aiming at the design of new energy electric automobiles, the main noise types are further subdivided, and aiming at the road tire noise of the automobiles, the low-frequency chassis vibration noise which is difficult to eliminate in the past is provided with a new solving direction;
4) It is pointed out that similar methods can be applied not only to chassis, but also to metal or non-metal panels for vehicle roofs and side frames and doors.
Drawings
Fig. 1 is a schematic structural view of the present embodiment.
Fig. 2 is a schematic view of an automobile chassis.
Detailed Description
Examples:
the sound insulation and noise elimination of the automobile can be realized by filling the automobile body and the interior trim with sound insulation materials, so that the noise can be prevented from penetrating the automobile body. This is also called a passive noise cancellation method. The method for passively insulating the sound absorbing material in the vehicle is generally effective for medium-high frequency noise and ineffective for low-frequency vibration. Because bass sound insulation requires a thick and heavy sound insulation material, the weight and thickness of the automobile are increased. Bass vibrations, in particular the sound of car tires and road friction, still penetrate through the car chassis. Becomes the first source of noise in automobiles.
Aiming at the characteristic of the automobile chassis, in particular to a popular non-bearing skateboard chassis structure of a new energy automobile, the implementation provides a novel road noise isolation scheme.
The specific scheme is as follows:
a new energy vehicle skateboard chassis and frame damping sound insulation laminated board comprises a plurality of layers of metal boards 1 which are correspondingly arranged, wherein two adjacent metal boards are bonded through a glue layer 2, the glue layer 2 forms a sound insulation damping part between the metal boards, and a damping sound insulation laminated board structure for weakening and attenuating sound transmission is formed;
the adhesive layer forms the buffer of vibration transmission between the metal plates and forms an active damping type adhesive-sandwiched plate structure;
the noise-reducing and shock-absorbing integrated laminated board 200 is formed by combination;
this example illustrates a two-layer sheet metal 1 solution, which is presented by way of illustration only and not limitation.
The noise-reducing and vibration-reducing integrated laminated board 200 is used as the uppermost metal plate of a new energy vehicle skateboard chassis or frame or the innermost metal plate facing the vehicle to form a damping and sound-insulating vehicle body structure for preventing road noise and tire noise from being transmitted into the vehicle through the chassis or frame.
The glue layer 2 is composed of PVB, SGP, EVA, PU, DT, DEV.
The glue layer 2 is made of PVB.
The noise-reducing and vibration-reducing integrated laminated board 200 is pressed by a hot press to discharge middle air, and then is placed into a high-pressure steam kettle to dissolve a small amount of residual air into an adhesive film by utilizing high temperature and high pressure, so that a compact pressing-type noise-reducing and vibration-reducing integrated laminated board structure is formed.
The new energy vehicle skateboard chassis 100 comprises an upper metal panel 101 and a lower metal panel 102, a honeycomb-shaped interlayer 103 is arranged between the upper metal panel 101 and the lower metal panel 102, the interlayer 103 is used for placing a battery pack or an electronic control and communication module, and the noise-reducing and vibration-reducing integrated laminated board 200 is used as the upper metal panel to form an upper metal panel active vibration-reducing and noise-reducing structure correspondingly connected with an automobile cabin.
The metal plate is a steel plate or an aluminum magnesium alloy plate.
Wherein:
the noise wave is generated by striking the chassis metal plate, so that the metal plate vibrates to transmit noise, and the single-layer plate, the hollow plate, the vacuum plate and the laminated plate vibrate due to the striking of sound waves, and the sound waves are generated by the vibration; the adhesive layer 2 of the noise-reducing and vibration-absorbing integrated laminated board 200 is equivalent to a damping layer, and can effectively inhibit the vibration of the metal board 1, thereby improving the sound insulation performance of the board.
The glue layer 2 is flexible material, corresponds to and forms the buffer body between two sheet metal 1, can effectively play the cushioning effect.
A cellular interlayer 103 houses the battery pack or electronic control and communication module; each honeycomb space, the steel plates on the upper layer and the lower layer are easy to jolt along with the automobile tire on the road to form vibration; the noise-reducing and vibration-reducing integrated laminated board 200 can effectively counteract vibration when used as an upper layer steel plate, and prevent low-frequency noise from entering the automobile seat.
Compared with the prior art, the beneficial effects of the embodiment are that:
1) The active noise elimination in a large space in the automobile is realized through the automobile chassis, and the weak link noise elimination at the entrance of the road noise into the automobile is realized, so that the entrance of the noise is isolated, and the problem of low-frequency road noise in the automobile is fundamentally solved;
2) The noise-reducing and vibration-reducing integrated structure formed by the laminated metal plate is used for effectively isolating low-frequency road noise and tire noise of the automobile chassis;
3) Aiming at the design of new energy electric automobiles, the main noise types are further subdivided, and aiming at the road tire noise of the automobiles, the low-frequency chassis vibration noise which is difficult to eliminate in the past is provided with a new solving direction;
4) It is pointed out that similar methods can be applied not only to chassis, but also to metal or non-metal panels for vehicle roofs and side frames and doors.
What has been described above is merely some embodiments of the present utility model. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the utility model.
Claims (5)
1. A new energy vehicle slide chassis and frame shock attenuation sound insulation double-layered glued board, its characterized in that: the sound-proof and damping type laminated board structure comprises a plurality of layers of metal boards which are correspondingly arranged, wherein two adjacent metal boards are bonded through a glue layer, the glue layer forms a sound-proof and damping part between the metal boards, and a damping and sound-proof laminated board structure for weakening and damping sound transmission is formed;
the adhesive layer forms the buffer of vibration transmission between the metal plates and forms an active damping type adhesive-sandwiched plate structure;
and the noise-reducing and shock-absorbing integrated laminated board is formed by combination.
2. The new energy vehicle slide chassis and frame shock attenuation sound insulation doubling panel of claim 1, wherein: the noise-reducing and vibration-reducing integrated laminated board is used as the uppermost metal board of a new energy vehicle skateboard chassis or a vehicle frame or the innermost metal board facing the vehicle interior, so as to form a damping and sound-insulating vehicle body structure for preventing road noise and tire noise from being transmitted into the vehicle through the chassis or the vehicle frame.
3. The new energy vehicle slide chassis and frame shock attenuation sound insulation doubling panel of claim 2, wherein: the noise-reducing and vibration-reducing integrated laminated board is pressed by a hot press to discharge middle air, and then is placed into a high-pressure steam kettle to dissolve a small amount of residual air into a glue film by utilizing high temperature and high pressure, so that a compact pressing-type noise-reducing and vibration-reducing integrated laminated board structure is formed.
4. The new energy vehicle slide chassis and frame shock attenuation sound insulation doubling panel of claim 3, wherein: the new energy vehicle skateboard chassis comprises an upper metal panel and a lower metal panel, a honeycomb-shaped interlayer is arranged between the upper metal panel and the lower metal panel, the interlayer is used for placing a battery pack or an electronic control and communication module, and the noise-reducing and vibration-reducing integrated laminated board is used as the upper metal panel to form an upper metal panel vibration-reducing and noise-reducing structure correspondingly connected with an automobile cabin.
5. The new energy vehicle slide chassis and frame shock attenuation sound insulation doubling panel of claim 3 or 4, wherein: the metal plate is a steel plate or an aluminum alloy magnesium alloy plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222545078.4U CN219888591U (en) | 2022-09-26 | 2022-09-26 | New energy vehicle skateboard chassis and frame damping sound insulation rubber-sandwiched board material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222545078.4U CN219888591U (en) | 2022-09-26 | 2022-09-26 | New energy vehicle skateboard chassis and frame damping sound insulation rubber-sandwiched board material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219888591U true CN219888591U (en) | 2023-10-24 |
Family
ID=88407428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222545078.4U Active CN219888591U (en) | 2022-09-26 | 2022-09-26 | New energy vehicle skateboard chassis and frame damping sound insulation rubber-sandwiched board material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219888591U (en) |
-
2022
- 2022-09-26 CN CN202222545078.4U patent/CN219888591U/en active Active
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