CN213619630U

CN213619630U - Enclose structure of making an uproar that falls before automobile body

Info

Publication number: CN213619630U
Application number: CN202022391992.9U
Authority: CN
Inventors: 吴红雷; 王智乾; 刘建伟; 李振超
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2021-07-06
Anticipated expiration: 2030-10-23

Abstract

The utility model provides a structure of making an uproar falls before automobile body, it mainly includes the anterior sound-insulating structure and the rear portion sound-insulating structure of arranging around, and the rear portion sound-insulating structure includes that the automobile body before enclose the panel beating to and cover and establish the rear portion sound-insulating pad on preceding enclosing the panel beating, anterior sound-insulating structure is including keeping off the baffle of arranging rear portion sound-insulating structure the place ahead in, and cover and establish the anterior sound-insulating pad on the baffle. The automobile body before enclose and fall the structure of making an uproar, anterior sound-proof structure and rear portion sound-proof structure interval arrange to constitute the bilayer formula that blocks the structure to the noise, can play the better effect of separating the sound of inhaling, effectively improve the interior sound quality of driver's cabin, thereby can effectively improve whole car NVH performance, and effectively improve the driver person's travelling comfort of taking advantage of.

Description

Enclose structure of making an uproar that falls before automobile body

Technical Field

The utility model relates to a vehicle parts technical field, in particular to enclose before automobile body and fall structure of making an uproar.

Background

Along with the continuous improvement of the domestic economic level, the requirements of passengers on the quality of the whole automobile are higher and higher, and the attention to the noise level in the automobile and the comfort of the passengers is also increased. The sound in the cab is the most direct feeling of passengers, and the quality of the whole vehicle can be reflected, so that how to reduce the noise in the cab and improve the comfort of the passengers is particularly important.

The front wall system of the vehicle body has the greatest influence on the noise level of the whole vehicle, the importance is the first place, and the improvement of the sound quality of the whole vehicle mainly depends on the improvement of the performance of the front wall system. However, the conventional cowl system layout has a limitation on improving the sound quality of the whole vehicle, because the parts of the cowl system cannot be optimized basically, and it is difficult to improve the sound insulation and absorption performance of the cowl system, and thus it is difficult to improve the NVH sound quality performance of the whole vehicle.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a enclose before the automobile body and fall the structure of making an uproar to improve the sound insulation and fall the noise effect.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a cowl noise reduction structure mounted to a front portion of a vehicle body and constituting a partition of a cab and an engine compartment, comprising:

the rear sound insulation structure comprises a front wall metal plate of the vehicle body and a rear sound insulation pad covered on the front wall metal plate;

anterior sound-proof structure locates rear sound-proof structure's the place ahead, and with interval sets up between the rear sound-proof structure, just anterior sound-proof structure arranges in including keeping off the baffle in rear sound-proof structure the place ahead, and cover and locate anterior sound-proof pad on the baffle.

Further, a sealing member is provided between the partition plate and the louver cover plate of the vehicle body, and the sealing member forms a seal for a gap between the partition plate and the louver cover plate.

Furthermore, the front sound insulation pad comprises a front baffle sound insulation pad and a rear baffle sound insulation pad which are respectively covered on the front side and the rear side of the baffle.

Further, in both sides shaping respectively has the erection column around the baffle, the erection column passes before the baffle give sound insulation and fill up with sound insulation pad sets up behind the baffle, and in be equipped with on the erection column in order to fix before the baffle give sound insulation fill up with sound insulation pad's joint spare behind the baffle.

Furthermore, an extension plate extending towards the rear of the vehicle body is formed at the lower part of the partition plate, and the extension plate extends to the lower part of the front side of the front wall metal plate.

Furthermore, a lower sound insulation pad is covered on the extension plate.

Further, the lower sound insulation pad extends to the lower side of a floor metal plate of the vehicle body and covers a part of the floor metal plate.

Furthermore, the partition plate and the extension plate are integrally formed and both are made of plastic or metal.

Furthermore, the partition plate is detachably connected with the vehicle body.

Further, the rear portion gives sound insulation and fills up including covering respectively locate before enclose the panel beating around the panel beating give sound insulation fill up and panel beating after the panel beating pad and the panel beating pad of giving sound insulation.

Compared with the prior art, the utility model discloses following advantage has:

(1) the automobile body before enclose and fall the structure of making an uproar, through setting up anterior sound-proof structure and rear portion sound-proof structure simultaneously, and anterior sound-proof structure and rear portion sound-proof structure interval arrange, can constitute the bilayer formula block structure to the noise, engine compartment noise is successively through anterior sound-proof structure and rear portion sound-proof structure just can get into the driver's cabin, can play the better effect of separating the sound of inhaling, effectively improve the interior sound quality of driver's cabin, thereby can effectively improve whole car NVH performance, and effectively improve driver person's travelling comfort.

(2) Set up the sealing member between baffle and ventilation window apron, can effectively seal the clearance between the two to further improve and separate the sound absorption effect.

(3) Simultaneously, the front sound insulation pad of the partition plate and the rear sound insulation pad of the partition plate are arranged, so that the sound insulation and absorption effects of the front sound insulation structure can be effectively improved.

(4) Set up the erection column on the baffle to set up the joint spare of being connected with the erection column, and sound insulation pad behind preceding sound insulation pad of installation baffle and the baffle, convenient assembling.

(5) The extension plate is arranged on the lower portion of the partition plate, and the sound insulation and absorption effect is improved.

(6) The lower sound insulation pad can be matched with the extension plate to further improve the sound insulation and absorption effect.

(7) The lower part gives sound insulation and fills up and extends to floor panel beating downside to cover partial floor panel beating, can further improve and separate the sound absorption effect.

(8) Baffle and extension board integrated into one piece, processing is convenient and convenient assembling.

(9) The partition board is detachably connected with the vehicle body, and the assembly and disassembly are convenient.

(10) Simultaneously, the front sound insulation pad of the metal plate and the rear sound insulation pad of the metal plate are arranged, so that the sound insulation and absorption effect of the rear sound insulation structure can be effectively improved.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is the utility model discloses before the automobile body enclose the structure schematic diagram of making an uproar structure of falling.

Description of reference numerals:

1. a front wall metal plate; 2. a metal plate front sound insulation pad; 3. a metal plate rear sound insulation pad; 4. a partition plate; 5. a sound insulating pad in front of the partition board; 6. a baffle rear sound insulation pad; 7. a ventilation window cover plate; 8. a seal member; 9. an extension plate; 10. a lower sound insulating pad; 11. and (4) floor sheet metal.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The present embodiment relates to a cowl noise reduction structure for a vehicle body, which is mounted to a front portion of the vehicle body, constitutes a partition of a cab and an engine compartment, and mainly includes a front sound insulation structure and a rear sound insulation structure arranged at a front-rear interval.

Based on the above overall structure description, an exemplary structure of the front wall noise reduction structure of the vehicle body of the present embodiment is shown in fig. 1, in which a front sound insulation structure and a rear sound insulation structure are arranged in front of and behind the vehicle body, and the rear sound insulation structure mainly includes a front wall metal plate 1 of the vehicle body and a rear sound insulation pad covering the front wall metal plate 1; the front sound-insulating structure mainly comprises a partition plate 4 arranged in front of the rear sound-insulating structure and a front sound-insulating pad covered on the partition plate 4.

In order to facilitate better understanding of the present embodiment, the structure of the rear sound-insulating structure, which mainly includes the dash metal plate 1 and the rear sound-insulating pad, will be described in detail below with reference to fig. 1. In a preferred embodiment, the rear sound insulation pad comprises a metal plate front sound insulation pad 2 and a metal plate rear sound insulation pad 3 which are respectively covered on the front side and the rear side of the front wall metal plate 1. Specifically structurally, the structure and the mounting means of preceding wall panel beating 1 can refer to current structure, and the panel beating front sound insulation pad 2 and the panel beating rear sound insulation pad 3 material, shape and mounting means also can refer to prior art, and this embodiment is no longer detailed.

The main improvement point of this embodiment lies in keeping off in the place ahead of rear portion sound-proof structure and having put anterior sound-proof structure, just, anterior sound-proof structure and rear portion sound-proof structure interval arrange to make the noise in the engine compartment pass through anterior sound-proof structure earlier, pass through the clearance before anterior sound-proof structure and the rear portion sound-proof structure again, then pass through rear portion sound-proof structure, can get into the driver's cabin, have better sound effect of separating, can effectively improve whole car province quality.

Referring to fig. 1, the front sound insulation structure will be described in detail, which mainly includes a baffle plate 4 and a front sound insulation pad, wherein the baffle plate 4 is positioned in front of the front metal plate 1, the top of the baffle plate 4 is connected to the louver cover 7, the lower portion of the baffle plate 4 extends to the front of the lower portion of the front metal plate 1, an extension plate 9 extending to the rear of the vehicle body is formed on the lower portion of the baffle plate 4, and the extension plate 9 extends rearward to the lower portion of the front side of the front metal plate 1.

In order to be assembled and disassembled conveniently, the partition plate 4 and the extension plate 9 are integrally formed, the combined cross section of the two is in an L shape, and the two are made of plastic or metal materials, for example, the two can be formed by an injection molding process or by bending an iron plate so as to fix the front sound insulation pad.

Along the width direction of automobile body, baffle 4 and extension board 9's both sides extend to the automobile body on current spare part like suspension tower panel beating, cabin boundary beam panel beating, cabin crossbeam panel beating to enclose jointly with ventilation window apron 7, rear portion sound-proof structure and constitute a cavity. In a preferred embodiment, the partition plate 4 and the extension plate 9 are detachably connected between the two sides thereof and the vehicle body, for example, the partition plate 4 and the extension plate 9 can be firmly arranged on the vehicle body by screwing a bolt pair.

In order to increase the sealing effect, a sealing element 8 is provided between the partition plate 4 and the louver cover 7 of the vehicle body, and the sealing element 8 seals a gap between the partition plate 4 and the louver cover 7. In this embodiment, the sealing member 8 may be wrapped around the upper edge of the partition plate 4, and is made of rubber, and the length direction of the sealing member is consistent with the width direction of the vehicle body, so as to seal the gap between the partition plate 4 and the louver cover plate 7, thereby further improving the sound insulation and absorption effect.

The front sound insulating pad specifically includes a partition front sound insulating pad 5 and a partition rear sound insulating pad 6 that are respectively covered on the front and rear sides of the partition 4. In this embodiment, give sound insulation before the baffle pad 5 and the baffle after the concrete material of sound insulation pad 6 can refer to before the panel beating sound insulation pad 2 and the panel beating after the sound insulation pad 3, add the non-woven fabrics layer as its optional PU layer that uses, or for other current sound materials of inhaling.

For the convenience of the installation of sound insulation pad 6 behind sound insulation pad 5 and the baffle before the baffle, both sides shape respectively have a plurality of erection columns not shown in the figure around baffle 4, the erection column of both sides passes sound insulation pad 5 and the baffle behind the baffle of corresponding side and fills up 6 settings, and the shaping has the joint hole on each erection column, so that link to each other with joint spare joint, the concrete structure of joint spare can refer to current buckle, be convenient for with behind sound insulation pad 5 and the baffle before the baffle 6 set firmly on baffle 4 can.

In the structure as above, joint spare and erection column joint link to each other and sound insulation pad 6 behind sound insulation pad 5 and the baffle before the fixed partition, be favorable to before the fixed partition sound insulation pad 5 and the baffle behind sound insulation pad 6 can, this embodiment does not carry out concrete limit to the position of erection column, if its edge arrangement that can encircle baffle 4, with behind sound insulation pad 5 and the baffle before the baffle on 6 firm being fixed in baffle 4 can. In addition, the baffle front sound insulation pad 5 and the baffle rear sound insulation pad 6 can be fixed on the baffle 4 by other methods, such as an adhesive method.

In order to further improve the sound insulation effect, a lower sound insulation pad 10 is further provided on the extension plate 9. In this embodiment, the lower sound insulation pad 10 is fixedly arranged on the lower side of the extension plate 9, the material of the lower sound insulation pad can refer to the existing metal plate front sound insulation pad 2 and the metal plate rear sound insulation pad 3, and the lower sound insulation pad 10 completely covers the extension plate 9 and extends to the lower side of the floor metal plate 11 of the vehicle body so as to form a covering for part of the floor metal plate 11. It should be noted that the lower sound-insulating mat 10 can be fixed to the extension plate 9 in a manner similar to the manner in which the front sound-insulating mat 5 and the rear sound-insulating mat 6 are fixed, and will not be described in detail herein.

Enclose before the automobile body of this embodiment and fall the structure of making an uproar, through setting up anterior sound-proof structure and rear portion sound-proof structure simultaneously, and anterior sound-proof structure and rear portion sound-proof structure interval arrange, can constitute the double-deck formula to the noise and block the structure, play the better effect of separating the sound of inhaling, effectively improve the interior sound quality of driver's cabin to can effectively improve whole car NVH performance, and effectively improve the driver and take the travelling comfort of person.

In addition, under the prerequisite of guaranteeing whole car sound quality, can reduce the density and the thickness of the heavy layer of sound insulation pad behind sound insulation pad before the panel beating and the panel beating among the sound insulation structure of rear portion through setting up anterior sound insulation structure to reduce whole car weight, accord with vehicle lightweight design requirement.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A cowl noise reduction structure mounted to a front portion of a vehicle body and constituting a partition of a cab and an engine compartment, the cowl noise reduction structure comprising:

the rear sound insulation structure comprises a front wall metal plate (1) of the vehicle body and a rear sound insulation pad covered on the front wall metal plate (1);

anterior sound-proof structure locates rear sound-proof structure's the place ahead, and with interval sets up between the rear sound-proof structure, just anterior sound-proof structure arranges in including keeping off baffle (4) in rear sound-proof structure the place ahead, and cover and locate anterior sound-proof pad on baffle (4).

2. The vehicle body cowl noise reduction structure according to claim 1, characterized in that: a sealing element (8) is arranged between the partition plate (4) and the ventilation window cover plate (7) of the vehicle body, and the sealing element (8) forms a seal for a gap between the partition plate (4) and the ventilation window cover plate (7).

3. The vehicle body cowl noise reduction structure according to claim 1, characterized in that: the front sound insulation pad comprises a front baffle sound insulation pad (5) and a rear baffle sound insulation pad (6) which are respectively covered on the front side and the rear side of the baffle (4).

4. The vehicle body cowl noise reduction structure according to claim 3, characterized in that: in both sides shaping respectively around baffle (4) has the erection column, the erection column passes before the baffle give sound insulation and fill up (5) with sound insulation pad (6) set up behind the baffle, and in be equipped with on the erection column in order to fix before the baffle give sound insulation fill up (5) with the joint spare of sound insulation pad (6) behind the baffle.

5. The vehicle body cowl noise reduction structure according to claim 1, characterized in that: and forming an extension plate (9) extending towards the rear part of the vehicle body at the lower part of the partition plate (4), wherein the extension plate (9) extends to the lower part of the front side of the front wall metal plate (1).

6. The vehicle body cowl noise reduction structure according to claim 5, characterized in that: and a lower sound insulation pad (10) is covered on the extension plate (9).

7. The vehicle body cowl noise reduction structure according to claim 6, characterized in that: the lower sound insulation pad (10) extends to the lower side of a floor metal plate (11) of the vehicle body and forms a cover for part of the floor metal plate (11).

8. The vehicle body cowl noise reduction structure according to claim 5, characterized in that: the partition plate (4) and the extension plate (9) are integrally formed and both are made of plastic or metal.

9. The vehicle body cowl noise reduction structure according to claim 1, characterized in that: the partition plate (4) is detachably connected with the vehicle body.

10. The vehicle body cowl noise reduction structure according to any one of claims 1 to 9, characterized in that: the rear sound insulation pad comprises a metal plate front sound insulation pad (2) and a metal plate rear sound insulation pad (3) which are covered and arranged on the front side and the rear side of the front wall metal plate (1).