CN218021846U

CN218021846U - Ceiling and vehicle

Info

Publication number: CN218021846U
Application number: CN202222074978.5U
Authority: CN
Inventors: 朱博然; 张帅
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2022-08-04
Filing date: 2022-08-04
Publication date: 2022-12-13
Anticipated expiration: 2032-08-04

Abstract

The utility model discloses a ceiling and vehicle, the ceiling includes: an outer plate; the interior trim panel is arranged on the inner side of the outer panel; the cross beam assembly is clamped between the outer plate and the interior trim panel, and the front end of the cross beam assembly is fixedly connected with the outer plate; first amortization spare, first amortization spare set up in the front end of interior plaque just presss from both sides and establishes interior plaque with between the beam assembly. The first silencing piece is arranged between the interior trim panel and the cross beam assembly, so that sound is prevented from being directly transmitted into the automobile through a gap between the interior trim panel and the cross beam assembly, a good sound insulation effect is achieved, and the noise environment in the automobile is improved.

Description

Ceiling and vehicle

Technical Field

The utility model belongs to the technical field of the vehicle technique and specifically relates to a ceiling and vehicle are related to.

Background

Along with the continuous improvement of living standard, consumers increasingly improve the requirement on the driving comfort of automobiles, and the automobile noise is the first problem to be solved on the driving comfort of the automobiles. When the vehicle runs, the air flow passes through the vehicle body to generate turbulence or leak noise, which is the main reason for generating wind noise, wherein when the air flow flows to the top cover through the front windshield, the speed is increased, the air flow is separated, and the region is very close to the head of a driver, so that passengers in the vehicle can more easily perceive the wind noise problem.

In the related technology, the top cover inner decoration plate at the front end of the top cover is in a suspended state, sound directly enters the vehicle through a gap between the top cover outer plate and the inner decoration plate after being transmitted into the vehicle through the top cover outer plate, sound energy on a sound transmission path is basically not attenuated, and passengers in the vehicle can easily perceive wind noise.

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, the utility model provides a ceiling sets up first amortization piece between plaque and the beam assembly including, prevents in sound directly transmits the car through the clearance between plaque and the beam assembly in, plays good syllable-dividing effect, improves noise environment in the car.

The utility model also provides a vehicle.

According to the utility model discloses ceiling of first aspect embodiment includes: an outer plate; the interior trim panel is arranged on the inner side of the outer panel; the cross beam assembly is clamped between the outer plate and the interior trim panel, and the front end of the cross beam assembly is fixedly connected with the outer plate; first amortization spare, first amortization spare set up in the front end of interior plaque just presss from both sides and establishes interior plaque with between the beam assembly.

According to the utility model discloses ceiling sets up first amortization piece between plaque and the beam assembly including, prevents in sound directly transmits the car through the clearance between plaque and the beam assembly in, plays good syllable-dividing effect, improves noise environment in the car.

According to the utility model discloses a some embodiments, the front end of beam assembly with clearance between the front end of interior plaque is h1, first amortization spare thickness under initial condition is h2, and h1 and h2 satisfy the relational expression: h2 is more than 2mm and h1 is more than 10mm.

According to some embodiments of the present invention, the first silencing part and the distance between the front ends of the interior panels are h3, h3 satisfies the relation: h3 >. 3mm.

According to some embodiments of the invention, the ceiling further comprises: and the second silencing piece is clamped between the interior trim panel and the cross beam assembly and is positioned behind the first silencing piece.

According to the utility model discloses a some embodiments, the second amortization piece with distance between the first amortization piece is h4, and h4 satisfies the relational expression: h4 is more than 5mm and less than 10mm.

According to some embodiments of the present invention, the second silencing part is at least two, and at least two of the second silencing part is disposed between the inner decoration plate and the beam assembly at an interval.

According to some embodiments of the invention, the ceiling further comprises: and the third silencing piece is clamped between the outer plate and the cross beam assembly and is positioned at the rear side of the cross beam assembly.

According to the utility model discloses a some embodiments, the beam assembly with be formed with first cavity between the planking, be provided with the fourth amortization piece in the first cavity.

According to some embodiments of the invention, the beam assembly comprises: first plate body and second plate body, first plate body with second plate body interconnect and be formed with the second cavity in the front and back direction, be provided with the fifth amortization piece in the second cavity.

According to the utility model discloses vehicle of second aspect embodiment, include the ceiling.

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 according to an embodiment of the present invention;

fig. 2 is a partial schematic view of a ceiling according to an embodiment of the invention;

fig. 3 is an exploded view of a ceiling according to an embodiment of the present invention.

Reference numerals:

100. a ceiling;

11. an outer plate; 12. an interior trim panel; 13. a first noise reducing member; 14. a second noise dampening member; 15. a first cavity;

20. a beam assembly; 21. a first plate body; 22. a second plate body; 23. a second cavity.

Detailed Description

Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.

The following describes the roof 100 according to an embodiment of the present invention with reference to fig. 1 to 3, and the present invention also provides a vehicle having the roof 100.

As shown in fig. 1 and 3, the ceiling 100 includes: the outer panel 11, the interior panel 12, the cross member assembly 20, and the first silencer 13. The interior panel 12 is provided on the inner side of the outer panel 11, and the interior panel 12 is made of a fabric, a Polyurethane (PU) panel, a glass fabric, or the like, and mainly has a sound absorbing function toward the cab. The interior trim panel 12 also has a certain decorative effect.

The beam assembly 20 is interposed between the outer panel 11 and the interior panel 12, and the front end of the beam assembly 20 is fixedly connected to the outer panel 11.

In addition, the first silencing piece 13 is arranged at the front end of the interior plate 12 and corresponds to the seam allowance area of the outer plate 11, the first silencing piece 13 is arranged between the interior plate 12 and the cross beam assembly 20, the first silencing piece 13 can be connected with the front end of the interior plate 12 in a bonding mode, and the process is simple and the assembly is simple. Specifically, the first noise damping member 13 may be foam, which has a strong sound absorbing ability and a small increase in cost and weight. When a sound source is transmitted into the automobile from the outside of the automobile, the sound source firstly passes through the outer plate 11 and then passes through the beam component 20, and then is transmitted into the automobile from the interior trim panel 12, the first silencing piece 13 can prevent sound from being transmitted to a cab through a gap between the front end of the interior trim panel 12 and the beam component 20, so that the problem of sound leakage paths is solved, the noise environment in the automobile is improved, and the NVH performance of the whole automobile is improved.

Wherein the foam is a closed-cell or semi-open and semi-closed material, and the density is required to be 80 +/-50 kg/m ³ The hardness (Shore C) is required to be 5 +/-3.

Therefore, the first silencing piece 13 is arranged between the interior trim panel 12 and the cross beam assembly 20, sound transmitted through the cross beam assembly 20 is prevented from being directly transmitted into a cab through a gap between the interior trim panel 12 and the cross beam assembly 20, a good sound insulation effect is achieved, the noise environment in the vehicle is improved, and good experience is provided for a user.

Referring to fig. 1 and 2, a gap between the front end of the cross member assembly 20 and the front end of the interior panel 12 is h1, a thickness of the first muffler component 13 in the initial state is h2, and h1 and h2 satisfy the relationship: h2 is more than 2mm and h1 is more than 10mm. That is to say, the thickness of the first silencing part 13 in the initial state is larger than the gap between the front end of the beam assembly 20 and the front end of the interior trim panel 12, so that the interference amount of 2-10mm between the first silencing part 13 and the sheet metal seam allowance is reserved, the propagation path of sound is blocked, the sound is prevented from being transmitted to the cab through the gap between the front end of the interior trim panel 12 and the sheet metal seam allowance, the propagation path of sound is blocked, the propagation of sound is weakened, and the NVH performance of the whole vehicle can be improved. In addition, the interference amount of 2-10mm between the first silencing part 13 and the sheet metal seam allowance is reserved, so that the first silencing part 13 can be well clamped at the sheet metal seam allowance.

Further, the difference between the thickness of the first muffler component 13 in the initial state and the gap between the front end of the cross member assembly 20 and the front end of the trim panel 12 may be 2-8mm, blocking the sound from being transmitted from the gap between the trim panel 12 and the cross member assembly 20, and securing the sealing effect.

And the distance between the first silencer 13 and the front end of the trim panel 12 is h3, and h3 satisfies the relation: h3 is more than 3mm. If the distance is too small, the first silencing piece 13 is exposed through the gap between the interior trim panel 12 and the cross beam assembly 20, so that the use feeling of a user on a product is reduced, and the market competitiveness of the product is influenced. The distance from the front side of the first silencing piece 13 to the edge of the front end of the interior trim panel 12 is more than 3mm, so that the assembly is guaranteed to be incapable of exposing through a gap between the interior trim panel 12 and the cross beam assembly 20, and good use experience is provided for a user.

As shown in fig. 1, the ceiling 100 further includes: and the second silencing piece 14, wherein the second silencing piece 14 is clamped between the inner decorating plate 12 and the cross beam assembly 20, and the second silencing piece 14 is positioned behind the first silencing piece 13. The second silencer component 14 is also disposed between the trim panel 12 and the cross-beam assembly 20, rearward relative to the first silencer component 13, in a region of the trim panel 12 corresponding to a greater (greater than 78 dB) source of wind noise. When a wind noise source is transmitted from the outside of the vehicle, the beam assembly 20 is provided with a through hole, and the wind noise source reaches the upper end of the interior panel 12 through the through hole, so that the second silencing part 14 can absorb sound energy transmitted to the upper end of the interior panel 12.

The second sound-damping element 14 can be made of a fiber-based or foam-based material, such as bicomponent sound-absorbing cotton, PET felt-based or open-cell PUR.

Specifically, the distance between the second muffler component 14 and the first muffler component 13 is h4, and h4 satisfies the relation: h4 is more than 5mm and less than 10mm. That is, the distance from the front edge of the second silencing part 14 to the rear edge of the first silencing part 13 is in the range of 5mm-10mm, so that the gap between the first silencing part 13 and the second silencing part 14 can be reserved, interference between the first silencing part 13 and the second silencing part 14 is prevented, and a wider sound insulation effect is achieved.

In addition, when the second silencing part 14 is in an assembled state, the thickness of the second silencing part 14 may also be greater than the gap between the cross beam assembly 20 and the interior panel 12, so that the second silencing part 14 may be in interference fit with the cross beam assembly 20 and the interior panel 12, and the second silencing part 14 has a better sound insulation effect.

And, the second silencing piece 14 is at least two, and at least two second silencing pieces 14 are set up at interval between interior plaque 12 and beam assembly 20. The number of the second silencing pieces 14 can be selected according to actual conditions, and the gap between the cross beam assembly 20 and the interior trim panel 12 is covered as completely as possible, so that a relatively ideal sound insulation effect can be achieved, and the in-vehicle silence in the high-speed running process is improved.

Further, the ceiling 100 includes: and a third noise damping member interposed between the outer panel 11 and the cross member assembly 20 and located on the rear side of the cross member assembly 20. The third silencing piece is located at the seam allowance at the rear end of the beam assembly 20, the third silencing piece can be connected with the rear end of the beam assembly 20 in a bonding mode, and the third silencing piece can seal a gap between the seam allowance and the outer plate 11, so that a wind noise source cannot be transmitted to the rear of the automobile body through the gap between the seam allowance at the rear end of the beam assembly 20 and the outer plate 11. And the non-mounting hole on the beam component 20 is blocked by the film, so that excellent sound insulation performance is achieved, and good experience is provided for users.

Wherein, the third silencing piece is an expansion adhesive tape, adopts EVA or EPDM material, the foaming coefficient is more than 900 percent, the width of the foaming material is within the range of 3-10mm, and the thickness is within the range of 4-6 mm.

Referring to fig. 2, a first cavity 15 is formed between the cross beam assembly 20 and the outer panel 11, and a fourth noise damping member is provided in the first cavity 15. The fourth silencing piece is used for filling the first cavity 15, so that the sealing effect is achieved, the valley value of the beam assembly 20 and the outer plate 11 in resonance can be improved, the sound insulation quantity of the main frequency band is increased, the process is easy to achieve, the weight cost is increased only to a limited extent, and the light weight and sound insulation effects are considered.

As shown in fig. 2 to 3, the beam assembly 20 includes: the first plate body 21 and the second plate body 22 are connected with each other in the front-back direction, a second cavity 23 is formed between the first plate body 21 and the second plate body 22, and a fifth silencing piece is arranged in the second cavity 23. The first plate 21 is located above the second plate 22, and the peripheral side of the first plate 21 is fixedly connected with the peripheral side of the second plate 22, and a welding manner may be adopted. The beam assembly 20 is provided with non-mounting holes, which may cause poor sealing effect and rapid reduction of sound insulation. The second cavity 23 formed between the first plate body 21 and the second plate body 22 is filled with the fifth silencing piece, so that the sealing effect is achieved, the valley value of the first plate body 21 and the second plate body 22 in resonance can be improved, the sound insulation quantity of the main frequency band is increased, the process is well realized, the weight cost is increased limitedly, and the requirements of light weight and sound insulation are met.

The fourth silencing part and the fifth silencing part can be made of two-component foaming materials, and the first cavity 15 and the second cavity 23 can be filled in an injection mode.

The vehicle according to the second aspect of the present invention includes a roof 100.

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

1. A canopy (100), comprising:

an outer panel (11);

an interior panel (12), the interior panel (12) being disposed inside the outer panel (11);

the cross beam assembly (20), the cross beam assembly (20) is clamped between the outer plate (11) and the inner decoration plate (12), and the front end of the cross beam assembly (20) is fixedly connected with the outer plate (11);

the first silencing piece (13) is arranged at the front end of the interior trim panel (12) and is clamped between the interior trim panel (12) and the cross beam assembly (20).

2. The canopy (100) of claim 1, wherein a gap between the front end of the cross-beam assembly (20) and the front end of the interior trim panel (12) is h1, the thickness of the first noise attenuating element (13) in an initial state is h2, and the h1 and h2 satisfy the relationship: h2 is more than 2mm and h1 is more than 10mm.

3. The ceiling (100) of claim 1, wherein the distance between the first noise dampening member (13) and the front end of the trim panel (12) is h3, h3 satisfying the relationship: h3 is more than 3mm.

4. The canopy (100) of claim 1, further comprising: and the second silencing piece (14) is clamped between the inner decorating plate (12) and the cross beam assembly (20) and is positioned behind the first silencing piece (13).

5. The ceiling (100) of claim 4, characterised in that the distance between the second sound-attenuating element (14) and the first sound-attenuating element (13) is h4, h4 satisfying the relation: h4 is more than 5mm and less than 10mm.

6. The canopy (100) of claim 4, wherein the second noise dampening member (14) is at least two, at least two of the second noise dampening members (14) being spaced between the trim panel (12) and the cross-beam assembly (20).

7. The canopy (100) of claim 1, further comprising: a third noise deadening member interposed between the outer panel (11) and the cross member assembly (20) and located on a rear side of the cross member assembly (20).

8. The canopy (100) of claim 1, wherein a first cavity (15) is formed between the beam assembly (20) and the outer panel (11), and a fourth noise dampening member is disposed within the first cavity (15).

9. The canopy (100) of claim 1, wherein the beam assembly (20) comprises: first plate body (21) and second plate body (22), first plate body (21) with second plate body (22) interconnect and be formed with second cavity (23) in the front and back direction, be provided with the fifth amortization piece in second cavity (23).

10. A vehicle, characterized by comprising: the ceiling (100) of any one of claims 1 to 9.