CN217835323U - Roof assembly of vehicle and vehicle - Google Patents
Roof assembly of vehicle and vehicle Download PDFInfo
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- CN217835323U CN217835323U CN202222250960.6U CN202222250960U CN217835323U CN 217835323 U CN217835323 U CN 217835323U CN 202222250960 U CN202222250960 U CN 202222250960U CN 217835323 U CN217835323 U CN 217835323U
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Abstract
The utility model discloses a ceiling assembly and vehicle of vehicle, ceiling assembly include: a ceiling; a top cover disposed above the ceiling, a gap being formed between a front end of the top cover and a front end of the ceiling; a noise reducing member disposed in the gap to seal the gap. Therefore, the noise reduction piece is arranged in the gap between the front part of the top cover above the ceiling and the front part of the ceiling, the stability of the ceiling assembly and the wind noise blocking attenuation capacity can be improved, the wind noise energy generated at the transition position of the front windshield and the top cover can be reduced and transmitted to the interior of the automobile, the interior quietness of the automobile can be improved, and a quiet and comfortable riding space can be created for drivers and passengers.
Description
Technical Field
The utility model belongs to the technical field of the vehicle technique and specifically relates to a ceiling assembly and vehicle of vehicle are related to.
Background
With the development and growth of the vehicle market and the continuous development and maturity of the vehicle technology, the requirement of consumers on the driving comfort of the vehicle is higher and higher. The vehicle noise is the problem which is mainly solved for the comfort of vehicle driving, particularly for pure electric vehicles, because the traditional engine, air intake and exhaust excitation noise are not provided, the noise level in the vehicle is integrally reduced, and the wind noise and road noise energy become the main noise sources of the pure electric vehicles. When a vehicle runs at a high speed, noise generated by airflow impacting a friction vehicle body is one of main causes of wind Noise, and how to reduce the wind Noise generated by the airflow friction vehicle body when the vehicle runs at a high speed is one of NVH (Noise, vibration, harshness-Noise, vibration and Harshness) control indexes.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the present invention is to provide a ceiling assembly of a vehicle, which reduces the level of wind noise energy transferred into the vehicle by the friction of the top cover with the airflow traveling at high speed.
The utility model discloses a vehicle is further proposed.
According to the utility model discloses a ceiling assembly of vehicle, include: a ceiling; a top cover disposed above the ceiling, a gap being formed between a front end of the top cover and a front end of the ceiling; a noise reducer disposed in the gap to seal the gap.
Therefore, the noise reduction piece is arranged in the gap between the front part of the top cover above the ceiling and the front part of the ceiling, the stability of the ceiling assembly and the wind noise blocking attenuation capacity can be improved, the wind noise energy generated at the transition position of the front windshield and the top cover can be reduced and transmitted to the interior of the automobile, the interior quietness of the automobile can be improved, and a quiet and comfortable riding space can be created for drivers and passengers.
In some examples of the present invention, the front portion of the ceiling is provided with a dome lamp holder, the front end surface of the noise reduction member is flush with the front end surface of the ceiling, and the rear end surface of the noise reduction member is close to or abutted against the front side of the dome lamp holder.
In some examples of the present invention, the noise reduction member is an elastic noise reduction member, the initial height of the noise reduction member is a, the size of the gap in the up-down direction is b, and a and b satisfy the following relation: a is more than b.
In some examples of the present invention, a and b satisfy the relation: a is more than or equal to 8mm and less than or equal to 12mm, b is more than or equal to 6mm and less than or equal to 10mm.
In some examples of the present invention, the first noise reduction member is an epdm rubber member, the epdm rubber member has a width in the front-rear direction of c, and c satisfies the following relation: c is more than or equal to 5mm and less than or equal to 10mm.
In some examples of the invention, the noise reduction member comprises: a first noise reduction member, the first noise reduction member being a rubber member having a hardness of between 40 and 70.
In some examples of the present invention, the width of the rubber member in the front-rear direction is d, and d satisfies the following relation: d is more than or equal to 0.2mm and less than or equal to 1mm.
In some examples of the invention, the noise reduction element further comprises: and the second noise reduction piece is arranged on one side of the first noise reduction piece in the front-back direction.
In some examples of the present invention, the second noise reduction part is a PU foam part, the PU foam part has a width in the front-rear direction of e, and e satisfies the following relation: e is more than or equal to 4.8mm and less than or equal to 9mm; or the second noise reduction piece is a sound absorption cotton piece, the width of the sound absorption cotton piece in the front-back direction is f, and f satisfies the relational expression: f is more than or equal to 4.8mm and less than or equal to 9mm.
The utility model discloses an in some examples, the lower surface front portion of ceiling is provided with the dome lamp, the dome lamp is connected with the pencil, it is provided with the line hole to fall on the piece of making an uproar firstly, the pencil is worn to establish the line hole.
According to the utility model discloses a vehicle, include: the roof assembly of the vehicle.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of a ceiling assembly according to an embodiment of the present invention;
fig. 2 is a side view of a first and a second noise reduction member according to an embodiment of the invention;
fig. 3 is a schematic view of a partial structure of a ceiling assembly according to an embodiment of the present invention.
Reference numerals:
100. a ceiling assembly;
10. a ceiling; 11. a dome lamp fixture;
20. a top cover; 21. a gap;
30. a noise reduction member; 31. a first noise reducing member; 32 a second noise reducing member; 33. a wire passing hole;
40. a wire harness.
Detailed Description
Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.
Through experiments and researches, the transition position of the front windshield and the top cover of the vehicle is a main part of the vehicle body which is rubbed by airflow, and the transition position is one of main parts which generate airflow friction noise. Because the position is the transition position of the front windshield and the top cover, the transition position is limited by a processing process and an assembling process, and a section difference usually exists at the transition position, and the existence of the section difference can further aggravate airflow friction noise. Meanwhile, since there is an inevitable gap between the roof panel and the ceiling in the vehicle at the transition (i.e., the front end of the roof panel), wind noise energy generated therein is transmitted to the vehicle through the gap. Tests show that the blocking attenuation capability of wind noise can be greatly improved after the gap is sealed, and the NVH effect is improved.
Based on this, the embodiment of the first aspect of the present invention provides a ceiling assembly 100 of a vehicle, where the ceiling assembly 100 is located at the top of the vehicle.
As shown in fig. 1-3, a ceiling assembly 100 according to an embodiment of the present invention may include: the noise damper includes a ceiling 10, a top cover 20, and a noise damper 30, the top cover 20 being disposed above the ceiling 10, a gap 21 being formed between a front end of the top cover 20 and a front end of the ceiling 10, the noise damper 30 being disposed in the gap 21 to seal the gap 21.
Specifically, a gap 21 between the front part of the top cover 20 above the ceiling 10 and the front part of the ceiling 10 is arranged at the transition position of the front windshield of the vehicle and the front end of the top cover 20, and the noise reduction piece 30 is arranged in the gap 21, so that the noise reduction piece 30 in the gap 21 blocks wind noise generated at the transition position of the front windshield and the top cover 20 and transmits the wind noise to the vehicle through the gap on the premise of not changing the main structure of the ceiling 10, the sealing and sound absorption performance of the transition position of the front windshield and the top cover 20 can be improved, the wind noise energy transmission can be blocked, and the blocking attenuation capacity of the ceiling 10 on the wind noise generated at the transition position of the front windshield and the top cover 20 and the quietness in the vehicle can be improved. In addition, the noise reducer 30 thus provided is provided in the gap 21 between the front portion of the top cover 20 above the roof 10 and the front portion of the roof 10, and the structure of the windshield and the roof assembly 100 can be made continuous, so that the stability of the roof assembly 100 can be improved.
Therefore, the noise reduction piece 30 is arranged in the gap 21, so that the stability of the ceiling assembly 100 and the blocking attenuation capacity of wind noise can be improved, the wind noise energy generated at the transition position of the front windshield and the top cover 20 can be reduced and transmitted to the interior level of the automobile, the interior quietness of the automobile can be improved, and a quiet and comfortable riding space can be created for drivers and passengers.
According to some optional embodiments of the utility model, combine fig. 3 to show, the front portion of ceiling 10 is provided with dome lamp support 11, falls the preceding terminal surface parallel and level of falling a 30 that falls with the preceding terminal surface of ceiling 10, falls the rear end face of falling a 30 that falls and is close to or the front side of butt dome lamp support 11, so sets up for fall a 30 that falls and transition to ceiling 10 preceding terminal surface in the appearance, under the prerequisite of guaranteeing to fall to make an uproar, can also keep the exquisite sense of vehicle interior trim, thereby promote user's travelling comfort.
According to some optional embodiments of the present invention, as shown in fig. 1 and fig. 2, the noise reduction member 30 is an elastic noise reduction member, the initial height of the noise reduction member 30 is a, the size of the gap 21 in the up-down direction is b, and a and b satisfy the relationship: a > b. Specifically, the height direction and the vertical direction of the noise reduction piece 30 are the same, and the height a of the noise reduction piece 30 is larger than the size b of the gap 21 in the vertical direction, so that the noise reduction piece 30 can be better attached to the gap 21 under the action of elastic force compression to improve the sealing performance, wind noise generated at the transition position of the front windshield and the top cover 20 can be better prevented from being transmitted into a vehicle through the position, and the comfort of a driver and passengers in the vehicle can be improved. In addition, because the elastic noise reduction piece has the elastic characteristic, the processing requirement of the noise reduction piece 30 can be reduced due to the arrangement, so that the manufacturing can be simpler, the problem of clearance caused by the installation error of the ceiling 10 can be avoided, and the structural stability of the ceiling assembly 100 can be improved.
Further, a and b satisfy the relation: a is more than or equal to 8mm and less than or equal to 12mm, b is more than or equal to 6mm and less than or equal to 10mm. Specifically, the range of the height a of the noise reduction member 30 includes the range of the dimension b of the gap 21 in the vertical direction, for example, when the dimension b of the gap 21 in the vertical direction is 6mm, the height a of the noise reduction member 30 may be 8mm, and thus the compression amount of the noise reduction member 30 in the vertical dimension direction of the gap 21 is 2mm, so that the sealing performance can be improved, and the gap problem due to the installation error of the ceiling 10 can be avoided. Of course, the present invention is not limited thereto, and when the size of the gap 21 in the up-down direction is 6mm, the height a of the noise reduction member 30 may be 9mm, 10mm, 11mm, and 12mm.
In some optional embodiments of the present invention, the noise reduction member 30 is an epdm rubber member, the width of the epdm rubber member in the front-back direction is c, and c satisfies the following relation: c is more than or equal to 5mm and less than or equal to 10mm. Specifically, the noise reducer 30 is located in a gap 21 between the front portion of the top cover 20 above the ceiling 10 and the front portion of the ceiling 10, and the gap 21 is located at a transition position between the front windshield of the vehicle and the front end of the top cover 20, so that the noise reducer 30 is often exposed to ultraviolet radiation, water vapor intrusion, and the like. The noise reduction piece 30 is an ethylene propylene diene monomer rubber piece, and due to the fact that the ethylene propylene diene monomer rubber has excellent aging resistance, ozone resistance, sunlight resistance, water vapor resistance, ultraviolet resistance, radiation resistance and other aging resistance, the applicability of the noise reduction piece 30 to vehicles in different use environments can be improved, and the service life of the noise reduction piece 30 can be prolonged. Of course, the present invention is not limited thereto, and the noise reduction member 30 may be made of other rubber materials.
Furthermore, the width of the ethylene propylene diene monomer rubber piece in the front-back direction is c, c is more than or equal to 5mm and less than or equal to 10mm, the space of a gap 21 between the front part of the top cover 20 above the ceiling 10 and the front part of the ceiling 10 is limited, the ceiling lamp support 11 is arranged at the back, the width of the gap 21 is not more than 10mm, and the width of the ethylene propylene diene monomer rubber piece in the front-back direction is larger than the gap 21 between the front part of the top cover 20 above the ceiling 10 and the front part of the ceiling 10.
For example, the designed width of the epdm rubber piece at the front of the ceiling 10 can be 10mm, and the length in the left-right direction can be 1335mm of the whole vehicle, so that the size of the epdm rubber piece can be close to or equal to the width of the ceiling, and the gap can be better sealed in the left-right direction, so that the noise reduction effect can be further improved. The density of the ethylene propylene diene monomer rubber part can be 80-120kg/m 3 The sound absorption coefficient can be 0.2, the ethylene propylene diene monomer rubber piece arranged in the way can improve the sealing and sound absorption performance of the part, block wind noise energy transfer, ensure that the processing is simpler while ensuring sealing, and better reduce the vehicle cost.
In other embodiments of the present invention, the noise reducing member 30 comprises a first noise reducing member 31, and the first noise reducing member 31 is a rubber member with a hardness of 40-70. For example, when wind passes through a gap 21 between the front part of the roof cover 20 above the roof 10 and the front part of the roof 10 at the transition position of the front windshield and the front end of the roof cover 20 of the vehicle, the noise generated by the wind passing through the gap 21 passes through the first noise reduction piece 31, the first noise reduction piece 31 is made of rubber material with the hardness of 40-70, and the rubber material has high density and good damping and attenuation characteristics, so that the sealing performance and the vibration absorption performance at the transition position can be improved, the level of wind noise energy generated at the transition position of the front windshield and the roof cover 20 to the interior of the vehicle can be reduced, and the comfort of drivers and passengers can be improved. For example, the first noise reducing member 31 is made of a rubber material with a hardness of 50, but the present invention is not limited thereto, and the first noise reducing member 31 may also be made of a rubber material with a hardness of 40, 60, or 70.
Further, the width d of the rubber member in the front-rear direction satisfies the relation: d is more than or equal to 0.2mm and less than or equal to 1mm. Specifically, the first noise reduction piece 31 is made of rubber, the width d of the rubber in the front-back direction is small, the cost of rubber materials can be reduced, and when the gap 21 between the front part of the top cover 20 above the ceiling 10 and the front part of the ceiling 10 is sealed, space can be saved for other vibration reduction pieces, so that the blocking attenuation capacity of the ceiling 10 for wind noise generated at the transition position of the front windshield and the top cover 20 is better improved, and the wind noise energy generated at the transition position of the front windshield and the top cover 20 is reduced to be transmitted to the interior level of the vehicle.
Optionally, as shown in fig. 2, the roof assembly 100 of the vehicle further comprises; and a second noise reduction member 32, wherein the second noise reduction member 32 is arranged on one side of the first noise reduction member 31 in the front-back direction. Specifically, the second noise reducing piece 32 is attached to the first noise reducing piece 31, and the second noise reducing piece 32 and the first noise reducing piece 31 are sealed together in the gap 21 between the front part of the top cover 20 above the ceiling 10 and the front part of the ceiling 10.
Further, the second noise reduction member 32 is a PU (polyurethane) foam member, the width of the PU foam member in the front-rear direction is e, and e satisfies the following relation: e is more than or equal to 4.8mm and less than or equal to 9mm. Specifically, the space of the gap 21 between the front part of the top cover 20 above the ceiling 10 and the front part of the ceiling 10 is limited, a ceiling lamp is arranged at the rear part, the width of the gap 21 is not more than 10mm, the second noise reducing piece 32 is attached to the first noise reducing piece 31, the width of the second noise reducing piece 32 in the front-rear direction is e, the total width of the second noise reducing piece 32 and the first noise reducing piece 31 in the front-rear direction is larger than the width of the gap 21 between the front part of the top cover 20 and the front part of the ceiling 10, so that the sealing performance of the gap 21 between the front part of the top cover 20 and the front part of the ceiling 10 is improved, in addition, the second noise reducing piece 32 is a PU foaming piece, and the PU is foamed into a sponge air layer, the sponge air layer has good characteristics of absorbing middle-high frequency noise, and the sound absorption coefficient is larger than 0.5, so that the sound absorption effect of the ceiling assembly 100 on wind noise generated at the gap 21 between the front part of the top cover 20 and the front part of the ceiling 10 can be improved, and the effect of the ceiling on the transmission of wind noise reduction energy can be blocked.
For example, the PU foaming piece can be designed to have a width of 9mm at the front part of the ceiling 10, the length in the left-right direction can be 1335mm of the whole vehicle length, the width of the PU foaming piece can be approximate to or equal to that of the ceiling, and the gap can be better sealed in the left-right direction, so that the noise reduction effect can be further improved, the PU foaming piece with the width of 4.8mm-9mm is designed beside the first noise reduction piece 31 to be the second noise reduction piece 32, and the PU foaming piece can absorb the sound absorption effect of medium-high frequency noise by utilizing the characteristics of the PU foaming piece and block and attenuate wind noise energy transfer.
Specifically, the second noise reduction piece 32 is a sound absorption cotton piece, the width of the sound absorption cotton piece in the front-back direction is f, and f satisfies the relation: f is more than or equal to 4.8mm and less than or equal to 9mm. Specifically, the second noise reducing member 32 is attached to the first noise reducing member 31, the width of the second noise reducing member 32 in the front-rear direction is f, and the total width of the second noise reducing member 32 and the first noise reducing member 31 in the front-rear direction is larger than the width of the gap 21 between the front portion of the top cover 20 and the front portion of the ceiling 10, so as to improve the sealing property at the gap 21 between the front portion of the top cover 20 and the front portion of the ceiling 10, and further, the second noise reducing member 32 is a sound absorbing cotton member, which has a porous fiber structure, and has a good high-frequency noise absorbing property and a sound absorbing coefficient of > 0.7, so that the sound absorbing effect of the ceiling assembly 100 on the wind noise generated at the gap 21 between the front portion of the top cover 20 and the front portion of the ceiling 10 can be improved, and the effect of attenuating the transmission of wind noise energy can be blocked.
For example, the sound-absorbing cotton piece can be designed to be 9mm in width at the front part of the ceiling 10, can be 1335mm in length in the left-right direction, can be close to or equal to the width of the ceiling, can better seal the gap in the left-right direction, thereby further improving the noise reduction effect, and the sound-absorbing cotton piece with the width of 4.8mm-9mm is designed to be the second noise reduction piece 32 on the first noise reduction piece 31, so that the sound absorption function of high-frequency energy in an engine can be absorbed, and the transmission of wind noise energy can be blocked and attenuated.
According to the utility model discloses a some optional embodiments, combine fig. 3 to show, dome lamp support 11 is connected with the dome lamp, the dome lamp is connected with pencil 40, it is provided with wire hole 33 on the piece 30 to fall to make an uproar, pencil 40 wears to establish wire hole 33, specifically, the dome lamp sets up the top in the vehicle, dome lamp support 11 is falling a 30 rear of making an uproar, the pencil 40 of connecting the dome lamp passes and falls the wire hole 33 of crossing on the piece 30 of making an uproar, so set up, under the prerequisite of guaranteeing to fall to make an uproar, can make the pencil 40 of dome lamp shield in the piece 30 of making an uproar that falls between clearance 21, thereby promote the aesthetic property of vehicle interior trim.
According to the utility model discloses vehicle of second aspect embodiment includes: the ceiling assembly 100 of the above embodiment. By the arrangement, the ceiling assembly 100 can reduce the wind noise energy generated at the transition position of the front windshield and the top cover 20 and transmit the wind noise energy to the interior level of the vehicle, improve the quietness of the interior of the vehicle and create a quiet and comfortable riding space for drivers and passengers.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A roof assembly for a vehicle, comprising:
a ceiling;
a top cover disposed above the ceiling, a gap being formed between a front end of the top cover and a front end of the ceiling;
a noise reducer disposed in the gap to seal the gap.
2. The vehicle roof assembly of claim 1, wherein a dome lamp bracket is provided at a front portion of the roof, a front end surface of the noise reducing member is flush with the front end surface of the roof, and a rear end surface of the noise reducing member is close to or abuts a front side of the dome lamp bracket.
3. The vehicle roof assembly of claim 1, wherein the noise reducer is an elastic noise reducer, the noise reducer has an initial height a, the gap has a dimension b in the vertical direction, and a and b satisfy the relationship: a > b, a and b satisfy the relation: a is more than or equal to 8mm and less than or equal to 12mm, b is more than or equal to 6mm and less than or equal to 10mm.
4. The vehicle roof assembly of claim 1, wherein the noise reducing member is an ethylene propylene diene monomer rubber member having a width c in the front-rear direction, and c satisfies the relationship: c is more than or equal to 5mm and less than or equal to 10mm.
5. The vehicle roof assembly of claim 1, wherein the noise reducer comprises a first noise reducer that is a rubber having a durometer of between 40-70.
6. The vehicle roof assembly of claim 5, characterized in that the rubber member has a width d in the front-rear direction, d satisfying the relation: d is more than or equal to 0.2mm and less than or equal to 1mm.
7. The vehicle roof assembly of claim 6, wherein the noise reducer further comprises: and the second noise reduction piece is arranged on one side of the first noise reduction piece in the front-back direction.
8. The roof assembly of a vehicle of claim 7, wherein the second noise reducing member is a PU foam having a width e in the front-to-rear direction that satisfies the relationship: e is more than or equal to 4.8mm and less than or equal to 9mm; or
The piece of making an uproar falls in the second is inhales the sound cotton piece, inhale the width of sound cotton piece in front and back direction and be f, f satisfies the relational expression: f is more than or equal to 4.8mm and less than or equal to 9mm.
9. The vehicle roof assembly of claim 2, wherein the dome light bracket is connected with a dome light, the dome light is connected with a wiring harness, and the noise reduction member is provided with a wiring hole through which the wiring harness is inserted.
10. A vehicle, characterized by comprising: a roof assembly for a vehicle as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222250960.6U CN217835323U (en) | 2022-08-25 | 2022-08-25 | Roof assembly of vehicle and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222250960.6U CN217835323U (en) | 2022-08-25 | 2022-08-25 | Roof assembly of vehicle and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217835323U true CN217835323U (en) | 2022-11-18 |
Family
ID=84016452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222250960.6U Active CN217835323U (en) | 2022-08-25 | 2022-08-25 | Roof assembly of vehicle and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217835323U (en) |
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2022
- 2022-08-25 CN CN202222250960.6U patent/CN217835323U/en active Active
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