CN209142054U - A kind of sound insulating pad promoting auto NVH performance - Google Patents
A kind of sound insulating pad promoting auto NVH performance Download PDFInfo
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- CN209142054U CN209142054U CN201822080495.XU CN201822080495U CN209142054U CN 209142054 U CN209142054 U CN 209142054U CN 201822080495 U CN201822080495 U CN 201822080495U CN 209142054 U CN209142054 U CN 209142054U
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Abstract
The utility model relates to technical field of automobile accessories, disclose a kind of sound insulating pad for promoting auto NVH performance, including sound-absorbing material layer and insulation material layer, and sound-absorbing material layer is used to absorb the noise generated when power-transmitting part operation；Insulation material layer is set on sound-absorbing material layer, for preventing noise from leaking.Sound insulating pad provided in this embodiment is by the way that sound-absorbing material layer and insulation material layer to be integrally formed, form the sound insulating pad exactly matched with the shell of power-transmitting part, such sound insulating pad can be bonded completely with the shell of power-transmitting part, more effectively absorb and completely cut off the noise of power-transmitting part, to achieve the purpose that noise reduction, and then the NVH performance of power-transmitting part is promoted, improve the Product Experience of user vehicle.
Description
Technical field
The utility model relates to technical field of automobile accessories more particularly to a kind of sound insulating pads for promoting auto NVH performance.
Background technique
NVH is the english abbreviation of noise, vibration and sound vibration roughness (Noise, Vibration, Harshness), this is
Global question of automobile manufacture quality is measured, it is experienced as most directly and most surface to user vehicle.For vapour
For vehicle, NVH problem be it is existing everywhere, main source can be divided into engine NVH, vehicle body NVH and chassis NVH three parts.
By taking new-energy automobile as an example, the power-transmitting part that the enging cabin of new-energy automobile generates noise mainly has driving
Motor, speed changer, transmission shaft etc..Power-transmitting part can generate noise in vehicle travel process, these noises can not only draw
The discomfort of user is played, and will affect the driving safety of automobile.
Currently, being directed to this problem, domestic automobile is usually that acoustical cotton, scattered package are added outside power-transmitting part
The outside of these components is absorbed noise by acoustical cotton and plays the role of noise reduction, but produced little effect, and user vehicle still is able to
The presence for easily perceiving noise brings bad usage experience to user vehicle.
Utility model content
Present embodiment discloses a kind of sound insulating pads for promoting auto NVH performance, by by sound-absorbing material layer and acoustic material
Layer is integrally formed, and forms the sound insulating pad exactly matched with the shell of power-transmitting part, can effectively be absorbed and be completely cut off power biography
The noise of dynamic component, achievees the purpose that absorbing sound and lowering noise.
Present embodiment discloses a kind of sound insulating pad for promoting auto NVH performance, the sound insulating pad is described dynamic for being coated on
The shell of power transmission parts, the sound insulating pad include sound-absorbing material layer, insulation material layer, and the sound-absorbing material layer is for absorbing institute
The noise generated when power-transmitting part operation is stated, the insulation material layer is set on the sound-absorbing material layer, for completely cutting off
Noise is stated to leak.
As an alternative embodiment, in the embodiments of the present invention, the sound-absorbing material layer and it is described every
Sound material layer is multilayer, and insulation material layer described in sound-absorbing material layer described in multilayer and multilayer is arranged from the bottom to top, and lowest level is
The sound-absorbing material layer, top layer are the insulation material layer.
As an alternative embodiment, in the embodiments of the present invention, on each layer sound-absorbing material layer
It is equipped at least one layer of insulation material layer, alternatively, at least one layer of sound insulation material is arranged on sound-absorbing material layer described in multilayer
The bed of material.
As an alternative embodiment, in the embodiments of the present invention, the material of the sound-absorbing material layer is
Porous material, the material of the insulation material layer are acoustic material.
As an alternative embodiment, in the embodiments of the present invention, the material of the sound-absorbing material layer is
Flexible foam polyurethane material or polyester fiber, the material of the insulation material layer are ethylene-vinyl acetate copolymer
Or ethylene propylene diene rubber.
As an alternative embodiment, the sound-absorbing material layer is directly sticked in the embodiments of the present invention
In the shell of the power-transmitting part.
As an alternative embodiment, the insulation material layer is integrally formed in the embodiments of the present invention
In the sound-absorbing material layer, and the sound-absorbing material layer is bonded completely with the shell of the power-transmitting part.
As an alternative embodiment, in the embodiments of the present invention, the sound-absorbing material layer and it is described every
Sound material layer is isodensity material layer, and the thickness of the thickness of the insulation material layer and the sound-absorbing material layer differs.
As an alternative embodiment, the sound insulating pad further includes fixed part in the embodiments of the present invention
Part, the fixation member are fixed on the insulation material layer, for making the sound insulating pad be coated on the power-transmitting part
The shell.
As an alternative embodiment, being additionally provided with and adding in the fixation member in the embodiments of the present invention
Gu component, the connection of the shell for reinforcing the sound insulating pad and the power-transmitting part.
As an alternative embodiment, the fixation member is hasp, rope in the embodiments of the present invention
Perhaps the zipper reinforcement feature is nail, band or garter spring.
A kind of sound insulating pad promoting auto NVH performance provided in this embodiment, power biography is absorbed using sound-absorbing material layer
The noise and improve sound insulation value using insulation material layer that dynamic component generates promote power to achieve the purpose that noise reduction
The NVH performance of transmission parts, improves the Product Experience of user vehicle.
In addition, sound-absorbing material layer uses the stronger PU class foamed material of sound absorbing power, and insulation material layer uses sound-proofing
The preferable EVA material of energy realizes sound-absorbing simultaneously by noise and extraneous barrier, thus the further anti-acoustic capability of promotion sound insulating pad.
In addition, sound insulating pad is also fixed on power-transmitting part by the way of hasp by the present embodiment, and utilize nail
Hasp, sound insulating pad are further reinforced the shell in power-transmitting part by son, to improve sound insulating pad and power-transmitting part shell
The compactness of body increases sound insulating pad to the area coverage of power-transmitting part to the maximum extent, and then further promotes sound insulating pad
Sound-absorbing sound insulation effect.
Detailed description of the invention
In order to illustrate more clearly of the technical scheme in the embodiment of the utility model, will make below to required in embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.
Fig. 1 is the schematic diagram that sound insulating pad disclosed in the utility model embodiment is coated on driving motor；
Fig. 2 is the schematic diagram of the section structure in Fig. 1 along line A-A；
Fig. 3 is the enlarged diagram in Fig. 2 at B；
Fig. 4 is a kind of schematic diagram of arrangement mode of sound insulating pad disclosed in the utility model embodiment；
Fig. 5 is the schematic diagram of another arrangement mode of sound insulating pad disclosed in the utility model embodiment；
Fig. 6 is the process schematic that sound insulating pad is coated on driving motor.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
It clearly and completely describes, it is clear that described embodiment is only the utility model a part of the embodiment, rather than whole realities
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, fall within the protection scope of the utility model.
It should be noted that the orientation or positional relationship of the instructions such as term " on " "lower" " left side " " right side " is based on shown in attached drawing
Orientation or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion is signified
Device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as practical new to this
The limitation of type.
It should be noted that the term " includes " of the utility model embodiment and " having " and their any deformation,
Be intended to cover it is non-exclusive include, for example, containing the process, method of a series of steps or units, system, product or setting
It is standby those of to be not necessarily limited to be clearly listed step or unit, but may include be not clearly listed or for these mistakes
The intrinsic other step or units of journey, method, product or equipment.
The utility model embodiment discloses a kind of sound insulating pad for promoting auto NVH performance, can be by by sound-absorbing material
Layer and insulation material layer are integrally formed, and form the sound insulating pad exactly matched with the shell of power-transmitting part, effectively absorb and every
The noise of exhausted power-transmitting part, achievees the purpose that noise reduction.
It is described in detail below with reference to attached drawing.
Also referring to Fig. 1 to Fig. 3, a kind of sound insulating pad promoting auto NVH performance disclosed in the utility model embodiment
1, which is used to be coated on the shell of power-transmitting part, which includes sound-absorbing material layer 11 and insulation material layer
12, sound-absorbing material layer 11 is used to absorb the noise that power-transmitting part operation generates；Insulation material layer 12 is set to sound-absorbing material layer
On 11, for preventing noise from leaking.
In the present embodiment, which can be applied to automobile, especially new-energy automobile.The sound insulating pad 1 can be coated on
Noise items in automobile engine nacelle, such as engine, speed changer etc. play absorption, completely cut off these power-transmitting parts fortune
The effect for the noise that row generates.Preferably, by taking the sound insulating pad 1 is applied to new-energy automobile as an example, the wherein power-transmitting part
It is also easy to produce the component of noise in the process of running including driving motor, the speed changer etc. in new-energy automobile.Hereinafter, the present embodiment
Using the power-transmitting part as driving motor 2, and the sound insulating pad is coated on for the shell of the driving motor 2 and is said
It is bright.
Driving motor 2 is the important component of new-energy automobile, and converts electrical energy into the machine of mechanical energy.But
In vehicle travel process, noise can be generated along with the acceleration or idling driving motor of vehicle, what driving motor 2 generated makes an uproar
Sound not only increases the fatigue of user vehicle, or even influences the driving safety of automobile.So coating sound insulation on 2 shell of driving motor
Pad 1, such noise, which can first be absorbed by sound-absorbing material layer 11, to weaken, then again by the insulation material layer 12 outside sound-absorbing material layer 11
Prevention leaks, and rebounds into sound-absorbing material layer 11 and further absorbed, to achieve the purpose that noise reduction, and helps to improve
The overall evaluation of the user vehicle to automotive performance.
In addition, the present embodiment is formed and driving motor 2 by the way that sound-absorbing material layer 11 and insulation material layer 12 to be integrally formed
Shell exact matching sound insulating pad 1 more effectively inhaled in this way, sound insulating pad 1 can be bonded completely with the shell of driving motor 2
The noise of driving motor 2 is received and completely cut off, to achieve the purpose that noise reduction, the NVH performance of driving motor 2 is promoted, improves automobile
The Product Experience at family.
Referring to figs. 1 and 2, in the present embodiment, in order to realize effectively absorb driving motor 2 noise and isolation
The noise leaks, and the material of sound-absorbing material layer 11 is porous material, and the material of insulation material layer 12 is acoustic material.
Specifically, the material of sound-absorbing material layer 11 is flexible foam polyurethane material (polyurethane, PU hair
Foam material) or polyester fiber (polyester fibre), the material of insulation material layer 12 is ethylene-vinyl acetate copolymer
(Ethylene Vinyl Acetate Copolymer, EVA material) or ethylene propylene diene rubber (Ethylene Propylene
Diene Monomer, EPDM material).
Preferably, sound-absorbing material layer 11 uses PU foamed material, on the one hand, connects inside and outside a large amount of since PU foamed material has
Logical micro-pore and hole, when sound wave is mapped on foam surface, sound wave can enter inside PU foamed material along hole,
The vibration for causing air molecule in hole, due to the viscosity resistance and air molecule of air and the friction of pore wall, sound can be converted
It is lost for thermal energy, secondly because the stickiness of foam wall material itself, partial vibration are converted to thermal energy, to reach the effect of sound absorption
Fruit；On the other hand, PU foamed material has compared with the fibroids sound-absorbing material such as common super glass wool, rock wool, mineral wool
The advantages that light weight, acoustic absorptivity height, machine-shaping convenience, without dust pollution, waterproof, wide use scope.
Insulation material layer 12 preferably uses EVA material, not only has good soundproof effect, also helps reduction to environment
Pollution, it is easy to process, be also beneficial to reduce production cost.
It is understood that the material that sound-absorbing material layer 11 and insulation material layer 12 use is not limited to mention in the present embodiment
And material, or other materials, specific material select according to actual production, not do have herein
Body limits.
As an alternative embodiment, sound-absorbing material layer 11 and insulation material layer 12 are single layer, insulation material layer
12 are attached at the one side of shell of the sound-absorbing material layer 11 far from driving motor 2.That is, in sound-absorbing material layer 11 and sound insulation material
When the bed of material 12 is single layer, the one side of the sound-absorbing material layer 11 is directly attached on the shell of driving motor 2, and insulation material layer
12 are fitted on the another side of sound-absorbing material layer 11.In this way, the noise that driving motor 2 generates can be first by soft porous sound-absorbing
Material layer 11 absorbs reduction, then leaks by the prevention of insulation material layer 12 of hard, so that noise rebounds to sound-absorbing material layer
It is further predominantly absorbed in 11 and in sound-absorbing material layer 11, to greatly improve the soundproof effect of sound insulating pad 1, reaches noise reduction
Purpose.
As another optional embodiment, sound-absorbing material layer 11 and insulation material layer 12 are multilayer, multiple layer sound suction
Material layer 11 and multiple sound insulation material layer 12 are arranged from the bottom to top, and lowest level is sound-absorbing material layer 11, and top layer is acoustic material
Layer 12.Specifically, under being with the shell for being fitted in driving motor 2, it is used to directly fit the shell of driving motor 2 in lowest level
One layer should be sound-absorbing material layer 11, and top layer, that is, outermost one layer of the shell far from driving motor 2 should be sound insulation material
The bed of material 12.In this way, though how intermediate sound-absorbing material layer 11 and insulation material layer 12 is arranged, outermost insulation material layer 12
The noise that driving motor 2 generates can be obstructed, prevent the noise from leaking.
When definition sound insulating pad 1 is coated on the shell of driving motor 2, under the direction close to shell is, the direction far from shell
To be upper, then undermost to should be sound-absorbing material layer 11, top layer should be insulation material layer 12.
Referring to Figure 4 together and Fig. 5, further, when sound-absorbing material layer and insulation material layer are multilayer, then each
It is equipped at least one layer of insulation material layer 12 on layer sound-absorbing material layer 11, alternatively, at least one is arranged in multiple layer sound suction material layer 11
Layer insulation material layer 12.That is, can alternately be arranged for sound-absorbing material layer 11 and insulation material layer 12 when sound insulating pad 1 is more than two layers
Cloth setting, i.e., be sticked insulation material layer 12 on sound-absorbing material layer 11, and be sticked sound-absorbing material layer 11 again on insulation material layer 12, so
Cycle alternation arrangement；Or the several layers insulation material layer 12 that is sticked in multiple layer sound suction material layer 11, then in several sound insulation materials
The several layers that are sticked on the bed of material 12 sound-absorbing material layer 11, is so arranged alternately.
It for example, successively can be sound-absorbing material layer 11, sound insulation from lowest level to top layer when sound insulating pad 1 is four layers
Material layer 12, sound-absorbing material layer 11 and insulation material layer 12.
And when sound insulating pad 1 is seven layers, it successively can be sound-absorbing material layer 11, sound-absorbing material layer from lowest level to top layer
11, insulation material layer 12, insulation material layer 12, sound-absorbing material layer 11, sound-absorbing material layer 11 and insulation material layer 12.
It follows that lowest level is sound-absorbing material layer 11, i.e., when guaranteeing that sound insulating pad 1 fits in the shell of driving motor 2
There is a sound-absorbing material layer 11 to be close to the setting of 2 shell of driving motor, under the premise of top layer is insulation material layer 12, sound insulating pad 1 has
When multilayer, in addition to the arrangement mode that the present embodiment proposes, there are also other a variety of arrangement modes, are not specifically limited here.
Sound insulating pad 1 uses sound-absorbing material layer 11 and insulation material layer 12 for the mode of multilayer, may make making an uproar for driving motor 2
Sound is by staged continuous absorption, to further increase the absorbing sound and lowering noise function of sound insulating pad 1.
The present embodiment preferably uses sound-absorbing material layer 11 and insulation material layer 12 is to be illustrated for single layer.
In conjunction with shown in Fig. 3 and Fig. 6, in the present embodiment, in order to increase the compactness of sound insulating pad 1 Yu driving motor 2, sound insulation
Material layer 12 can be integrally formed at sound-absorbing material layer 11, and sound-absorbing material layer 11 is bonded completely with the shell of driving motor 2.Specifically
Ground, sound-absorbing material layer 11 and insulation material layer 12 are produced using foaming forming technique, so that 11 He of sound-absorbing material layer
The shape of insulation material layer 12 and the shell of driving motor 2 keep high consistency, and sound-absorbing material layer 11 is foamed directly by PU
It connects and is adhered to each other with insulation material layer 12, in this way, the sound insulating pad to be formed may make to form close entirety, guarantee sound insulating pad 1
Be bonded with the outer cover height of driving motor 2, so as to higher efficiency sound-absorbing, and as far as possible reduce noise overflow dissipate, sound-absorbing every
Audio fruit is more excellent.
In the present embodiment, sound-absorbing material layer 11 and insulation material layer 12 are isodensity material layer, and insulation material layer 12
Thickness and the thickness of sound-absorbing material layer 11 differ.Specifically, it is sent out due to sound-absorbing material layer 11 and insulation material layer 12 using PU
Bubble technique, so that the sound-absorbing material layer 11 and insulation material layer 12 realize isodensity not equal thickness.In this way, can be according to drive
Exterior space size locating for the shape and driving motor 2 of dynamic motor 2 is allowed to more come 1 thickness change of sound insulating pad adjusted
The shell of driving motor 2 is fitted in, to further increase the effect of absorbing sound and lowering noise.
Preferably, in order to improve the noise reduction effect to driving motor 2, the thickness of the sound-absorbing material layer 11 should be greater than sound insulation material
The thickness of the bed of material 12, so that noise can be absorbed as much as possible inside sound-absorbing material layer 11, to reduce outside noise
A possibility that letting out.
Referring to Fig. 4, the two keeps height one in shape since sound insulating pad 1 is made according to the shell of driving motor 2
Cause property, so sound insulating pad 1 is limited by some specific features (such as protrusion of some components) on 2 shell of driving motor
Position, such sound insulating pad 1 can be more easily on Matching installations to 2 shell of driving motor.But such installation is not enough
It is firm, therefore, in order to ensure sound insulating pad 1 can be firmly coated on the shell of driving motor 2, so also being set in sound insulating pad 1
There is a fixation member 3, fixation member 3 is fastenedly connected for sound insulating pad 1 and the shell of driving motor 2.
Specifically, fixation member 3 is fixed on the outermost insulation material layer 12 of sound insulating pad 1, and fixation member 3 can be to take
Button, rope or zipper.Preferably, fixation member 3 uses velcro fastener, and velcro fastener is by nylon hook band and nylon velvet band two
The connection narrow fabrics of part composition, wherein nylon hook band and nylon velvet band combine pressure light slightly, can generate biggish
Fasten power and tear-off power.Nylon hook band and nylon velvet band are fixed on the outermost insulation material layer 12 of sound insulating pad 1, to will be every
After the limit of sound pad 1 and 2 shell of driving motor matches, nylon velvet band and nylon hook band are pasted together, it can reach by every
Sound pad 1 is fixed on the purpose of 2 shell of driving motor, while velcro fastener is also less expensive, reduces production cost.Wherein, it is
Reinforce the fixed function of velcro fastener, can take several nylon of more settings on the outermost insulation material layer 12 of sound insulating pad 1
Button.It is understood that the component that fixation member 3 is mentioned in addition to the present embodiment, can also optimum choice according to the actual situation,
It is not specifically limited herein.
In the present embodiment, it in order to further reinforce the connection of sound insulating pad 1 Yu driving motor 2, is also added in fixation member 3
Reinforcement feature 4, the connection of the shell for reinforcing sound insulating pad 1 and driving motor 2, reinforcement feature 4 are nail, band or hoop
Ring.Preferably, when the fixation member 3 select velcro fastener when, staple can be used in reinforcement feature 4, velcro fastener incited somebody to action
After sound insulating pad 1 is fixed on driving motor 2, staple is ordered on velcro fastener, velcro fastener and sound insulating pad 1 may make to combine
It is more firm, so that the connection of sound insulating pad 1 and driving motor 2 is further reinforced, meanwhile, staple is easier to process, can
To reduce production cost.
Referring to Fig. 6, the process being coated below to sound insulating pad 1 on the shell of driving motor 2 is briefly described:
By sound insulating pad 1 completely fitting be coated on the shell of driving motor 2, then by sound insulating pad 1 nylon hook band and
Nylon velvet buckle altogether, so that sound insulating pad 1 is fixed on driving motor 2, is ordered on velcro fastener into staple, into one
Step reinforces the connection of sound insulating pad 1 and driving motor 2.
On the one hand the method reinforced using velcro fastener and staple can be improved sound insulating pad 1 and driving motor 2
The compactness of shell increases sound insulating pad 1 to the area coverage of driving motor 2 to the maximum extent, and then further promotes sound insulating pad 1
Sound-absorbing sound insulation effect；On the other hand, this method step is simple and easy, and low in cost, can greatly save production cost,
Improve production efficiency.
A kind of sound insulating pad promoting auto NVH performance provided in this embodiment, power biography is absorbed using sound-absorbing material layer
The noise of dynamic component and sound insulation value is improved using insulation material layer, to achieve the purpose that noise reduction, promotes power transmission
The NVH performance of component, improves the Product Experience of user vehicle.
In addition, sound-absorbing material layer uses the stronger PU class foamed material of sound absorbing power, and insulation material layer uses sound-proofing
The preferable EVA material of energy realizes sound-absorbing simultaneously by noise and extraneous barrier, thus the further anti-acoustic capability of promotion sound insulating pad.
In addition, sound insulating pad is also fixed on power-transmitting part by the way of hasp by the present embodiment, and utilize nail
Hasp, sound insulating pad are further reinforced the shell in power-transmitting part by son, to improve sound insulating pad and power-transmitting part shell
The compactness of body increases sound insulating pad to the area coverage of power-transmitting part to the maximum extent, and then further promotes sound insulating pad
Sound-absorbing sound insulation effect.
Detailed Jie has been carried out to a kind of sound insulating pad for promoting auto NVH performance disclosed in the utility model embodiment above
It continues, specific case used herein is expounded the principles of the present invention and embodiment, and above embodiments are said
The sound insulating pad and its core concept of a kind of bright promotion auto NVH performance for being merely used to help understand the utility model；Meanwhile it is right
In those of ordinary skill in the art, based on the idea of the present invention, have in specific embodiments and applications
Change place, in conclusion the content of the present specification should not be construed as a limitation of the present invention.
Claims (10)
1. a kind of sound insulating pad for promoting auto NVH performance, which is characterized in that the sound insulating pad is for being coated on automobile internally-powered biography
The shell of dynamic component, the sound insulating pad include
At least one layer of sound-absorbing material layer, for absorbing the noise generated when power-transmitting part operation；And
At least one layer of insulation material layer, the insulation material layer is set on the sound-absorbing material layer, for completely cutting off outside the noise
It lets out.
2. a kind of sound insulating pad for promoting auto NVH performance according to claim 1, which is characterized in that the sound-absorbing material
Layer and the insulation material layer are multilayer, and insulation material layer described in sound-absorbing material layer described in multilayer and multilayer is set from the bottom to top
It sets, lowest level is the sound-absorbing material layer, and top layer is the insulation material layer.
3. a kind of sound insulating pad for promoting auto NVH performance according to claim 2, which is characterized in that each layer suction
At least one layer of insulation material layer is equipped in sound material layer, alternatively, being arranged on sound-absorbing material layer described in multilayer at least one layer of
The insulation material layer.
4. a kind of sound insulating pad for promoting auto NVH performance according to claim 3, which is characterized in that the sound-absorbing material
The material of layer is porous material, and the material of the insulation material layer is acoustic material.
5. a kind of sound insulating pad for promoting auto NVH performance according to claim 4, which is characterized in that the sound-absorbing material
The material of layer is flexible foam polyurethane material or polyester fiber, and the material of the insulation material layer is ethyl vinyl acetate
Ethylene copolymer or ethylene propylene diene rubber.
6. a kind of sound insulating pad for promoting auto NVH performance according to any one of claims 1 to 4, which is characterized in that described
Insulation material layer is shaped in the sound-absorbing material layer.
7. a kind of sound insulating pad for promoting auto NVH performance according to claim 6, which is characterized in that the sound-absorbing material
Layer and the insulation material layer are isodensity material layer, and the thickness of the thickness of the insulation material layer and the sound-absorbing material layer
Differ.
8. a kind of sound insulating pad for promoting auto NVH performance according to any one of claims 1 to 4, which is characterized in that described
Sound insulating pad further includes fixation member, and the fixation member is fixed on the insulation material layer, for being coated on the sound insulating pad
The shell of the power-transmitting part.
9. a kind of sound insulating pad for promoting auto NVH performance according to claim 8, which is characterized in that the fixation member
On be additionally provided with reinforcement feature, the connection of the shell for reinforcing the sound insulating pad and the power-transmitting part.
10. a kind of sound insulating pad for promoting auto NVH performance according to claim 9, which is characterized in that the fixation member
For hasp, rope or zipper, the reinforcement feature is nail, band or garter spring.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822080495.XU CN209142054U (en) | 2018-12-11 | 2018-12-11 | A kind of sound insulating pad promoting auto NVH performance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822080495.XU CN209142054U (en) | 2018-12-11 | 2018-12-11 | A kind of sound insulating pad promoting auto NVH performance |
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| CN209142054U true CN209142054U (en) | 2019-07-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117022139A (en) * | 2023-08-18 | 2023-11-10 | 重庆福呗汽车技术有限责任公司 | Noise reduction device for improving NVH of automobile |
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2018
- 2018-12-11 CN CN201822080495.XU patent/CN209142054U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117022139A (en) * | 2023-08-18 | 2023-11-10 | 重庆福呗汽车技术有限责任公司 | Noise reduction device for improving NVH of automobile |
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