CN217892607U

CN217892607U - Automobile carpet structure and automobile

Info

Publication number: CN217892607U
Application number: CN202222101986.4U
Authority: CN
Inventors: 乔博磊; 马利
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2022-08-10
Filing date: 2022-08-10
Publication date: 2022-11-25
Anticipated expiration: 2032-08-10

Abstract

The utility model provides a car carpet structure and car, the utility model discloses a car carpet structure includes the carpet body and is located the sound insulation pad of carpet body below, and the lower part of carpet body is equipped with the holding tank, and the sound insulation pad seals the holding tank, and the holding tank forms the accommodation space who holds the electrical part with the sound insulation pad jointly. Automotive carpet structure, can form sound insulation-sound absorption-sound insulation between automotive floor, sound insulation pad and carpet body and fall the structure of making an uproar to reduce the noise and get into the possibility in the car along automotive floor, holding tank to carpet body's transmission path, and have better sound absorption and fall the performance of making an uproar, thereby effectively promote the car and use the quality.

Description

Automobile carpet structure and automobile

Technical Field

The utility model relates to the field of automotive technology, in particular to automotive carpet structure, simultaneously, the utility model discloses still relate to an automobile with this automotive carpet structure.

Background

During the driving process of the automobile, external noise, body vibration noise, tire noise and wind noise can be transmitted into the automobile through floors, doors and windows and other ways, and the noise can influence the experience of drivers and passengers. The carpet is used as one of main interior trim parts of an automobile, generally has a certain thickness and a certain coverage area, and is mainly used for isolating medium-high frequency Noise from being transmitted into the automobile, so the Noise insulation performance of the carpet can directly influence the NVH (Noise, vibration and Harshness) performance of the whole automobile.

The internal structure of the carpet comprises three parts, namely a carpet blank layer, a sound insulation layer (a partial carpet sound insulation layer or a partial sound insulation layer) and a sound absorption layer from top to bottom in sequence. The sound absorption layer is made of sound absorption materials and is arranged between the sound insulation layer and the floor metal plate to form a sound insulation-sound absorption-sound insulation structure. In the actual vehicle state, the noise such as vehicle bottom tire noise, wind noise and the like is transmitted into the vehicle finally through the floor sheet metal, the sound absorption layer, the sound insulation layer and the carpet blank layer in sequence.

However, in the areas corresponding to the components such as the front seat and the middle passageway, the components such as the controller, the wiring harness and the air conditioning duct are often arranged on the floor, so that the carpet is kept flat, and corresponding to the areas, the sound absorption layer of the carpet is often provided with an avoidance groove penetrating through the carpet, when the local carpet is not provided with the sound absorption layer, noise enters the accommodating groove through the floor metal plate and oscillates between the floor metal plate and the carpet sound insulation layer, the noise cannot be dissipated, and finally enters the vehicle along the transmission path from the sound insulation layer to the carpet blank layer, so that the sound insulation performance of the floor system is reduced, and the use quality of the vehicle is reduced.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing an automotive carpet structure, it has better sound absorption noise reduction effect to can promote the car and use the quality.

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

the utility model provides an automotive carpet structure, includes the carpet body and is located give sound insulation of carpet body below fills up, just the lower part of carpet body is equipped with the holding tank, give sound insulation fill up will the holding tank seals, the holding tank with give sound insulation fill up and form the accommodation space who holds the electrical part jointly.

Further, the sound insulation pad is made of sound absorption cotton or felt.

Further, the thickness of the sound insulation pad is between 2mm and 5 mm.

Further, the electric device comprises a controller, a wire harness or an air conditioning duct.

Further, be equipped with on the sound insulation pad with the via hole of intercommunication in the holding tank, the electrical part is through wearing to establish connecting piece in the via hole is connected on the automobile floor.

Further, a gap delta is formed between the inner wall of the through hole and the outer wall of the connecting piece, and the gap delta is between 2mm and 5 mm.

Furthermore, the left side and the right side of the automobile floor are both connected with threshold beams, and a middle channel and a seat cross beam are connected to the automobile floor; at least one of the seat cross beam, the center tunnel and the threshold beam and the sound insulation pad are formed with a lap joint area, and the width W of the lap joint area is not less than 8mm.

Further, the carpet body comprises a sound absorption layer, a sound insulation layer and a carpet blank layer, wherein the sound insulation layer and the carpet blank layer are arranged above the sound absorption layer in sequence, and the accommodating groove is formed in the sound absorption layer.

Further, the sound absorption layer and the sound insulation layer and/or the sound insulation layer and the blanket blank layer are bonded and connected.

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

automotive carpet structure, through setting up the pad that gives sound insulation, can correspond to accommodation space department, form sound insulation-sound absorption-sound insulation between automotive floor, give sound insulation and fill up and the carpet body and make an uproar structure of making an uproar to reduce the noise and follow the possibility in the car that the transmission route of automotive floor, holding tank to carpet body gets into, and can make this automotive carpet structure have better sound absorption and fall the performance of making an uproar, thereby promote the use quality of car.

Another object of the present invention is to provide a car, the car has a car floor in the car, be equipped with on the car floor as above car carpet structure.

The automobile can have better sound absorption and Noise reduction performance by setting the automobile carpet structure, can improve the NVH (Noise, vibration and Harshness) performance of the automobile, and further improves the use quality of the automobile.

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 a schematic view of an overall structure of an automotive carpet structure according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is an enlarged view of a portion B of FIG. 1;

description of the reference numerals:

1. an automotive floor; 2. a carpet body; 3. a sound insulating pad; 4. a controller; 5. a connecting member; 6. a threshold beam;

201. a sound absorbing layer; 202. a sound insulating layer; 203. a blanket layer; 204. accommodating grooves;

301. a via hole;

w, lap joint width; delta, a gap between the inner wall of the via hole and the outer wall of the connecting piece.

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.

In the description of the present invention, it should be noted that, if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. appear, they are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the appearances of the terms first, second, etc. in this specification are not necessarily all referring to the same order, but are to be construed as referring to the same order.

In addition, in the description of the present invention, the terms "mounted," "connected," and "connecting" are to be construed broadly unless otherwise specifically limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. To those of ordinary skill in the art, the specific meaning of the above terms in the present invention can be understood in combination with the specific situation.

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

Example one

The utility model relates to a car carpet structure, it has better sound absorption noise reduction effect, and can improve the NVH performance of car.

Overall structure, as shown in fig. 1, the automotive carpet structure of this embodiment includes carpet body 2 and the sound insulation pad 3 that is located carpet body 2 below, and the lower part of carpet body 2 is equipped with holding tank 204, and sound insulation pad 3 seals holding tank 204, and holding tank 204 forms the accommodation space who holds the electrical part with sound insulation pad 3 jointly.

It is worth mentioning here that the acoustic insulating mat 3 of the present embodiment is laid on the floor 1 of the vehicle, the electric devices are generally an air conditioning duct, a controller 4, a wire harness, and the like which are disposed in the accommodating space, and only a structural schematic of the electric device as the controller 4 is shown in fig. 1.

Based on the above general description, as a preferred embodiment, in this embodiment, the sound insulation pad 3 is made of sound absorption cotton or felt, and both the sound absorption cotton and the felt can prevent the electric device from directly rubbing against the car floor 1 to be damaged, and have good sound absorption and sound insulation effects.

Preferably, the thickness of the sound insulation pad 3 is preferably between 2mm and 5mm, so that the sound insulation pad has good sound absorption and noise reduction effects, and simultaneously can meet the requirements of gaps between the air conditioning air duct, the controller 4, the wire harness and the automobile floor 1, thereby providing good shock resistance and wear resistance, and avoiding friction damage of electric devices such as the air conditioning air duct, the wire harness and the like and the automobile floor 1. In specific implementation, the thickness of the sound insulating pad 3 may be 3mm, 3.5mm, or 4mm.

Referring to fig. 1 and 3, in the present embodiment, preferably, the acoustic insulating mat 3 is provided with a through hole 301 communicating with the inside of the receiving groove 204, and the electric device is connected to the vehicle floor 1 through a connecting member 5 inserted into the through hole 301. The connecting element 5 here can be a conventional stud or bolt product.

In practical implementation, it is preferable that a gap δ is formed between the inner wall of the via hole 301 and the outer wall of the connector 5, and the gap δ is generally set between 2mm and 5mm, so as to facilitate the mounting and dismounting of the electric device, for example, the gap δ may be 2mm, 3mm or 4mm.

In this embodiment, as preferred embodiment, the left and right sides of vehicle floor 1 all is connected with threshold roof beam 6, and as shown in fig. 2, be formed with the overlap joint region between sound insulation pad 3 and the threshold roof beam 6, the width W of overlap joint region generally sets up to be not less than 8mm to avoid taking place because of there is the condition that the individual layer panel beating does not have sound insulation pad 3 to cover in threshold roof beam 6 and vehicle floor 1 connected region, and influence the holistic sound absorption of vehicle floor 1 system and fall the performance of making an uproar, thereby reduce the NVH performance of car.

Simultaneously, still be equipped with well passageway and seat crossbeam on above-mentioned automobile floor 1, between sound insulation pad 3 and the seat crossbeam to and sound insulation pad 3 and well passageway between, all preferred formation width is not less than 8 mm's overlap joint region to there is the condition that the individual layer panel beating does not have sound insulation pad 3 to cover in avoiding taking place in passageway and 1 connection region of automobile floor or seat crossbeam and 1 connection region of automobile floor, and reduces the NVH performance of car.

In specific implementation, the width W of the lap joint area may be 8mm, 10mm or 12mm, and it is only necessary to ensure that the sound insulation pad 3 effectively covers the connection area between the vehicle floor 1 and the rocker beam 6, the connection area between the vehicle floor 1 and the seat cross beam, and the connection area between the vehicle floor 1 and the center tunnel.

Of course, the seat cross beam mainly refers to a front cross beam and a rear cross beam of a front row seat of an automobile, and in this embodiment, the automobile floor 1, the threshold beam 6, the center tunnel and the seat cross beam are all components of an automobile floor assembly, and each structure not mentioned in the automobile floor assembly can refer to related structural parts common in the prior art, which is not described herein again.

In addition, in this embodiment, the carpet body 2 includes the sound absorption layer 201, and the sound insulation layer 202 and the carpet blank layer 203 sequentially disposed above the sound absorption layer 201, and the accommodation groove 204 is opened in the sound absorption layer 201. In actual use, the sound absorbing layer 201 is located above the sound insulating mat 3, and the sound absorbing layer 201 and the sound insulating layer 202 and the carpet base layer 203 are generally bonded together.

It is worth mentioning that in the state shown in fig. 1, the accommodating groove 204 of the present embodiment is generally disposed through the sound absorption layer 201, so that the sound absorption layer 201 does not cover the electric device, and the distance between the electric device and the top sound insulation layer 202 is not less than 10mm, thereby facilitating the heat dissipation of the electric device.

The sound absorption layer 201 may be made of PU (polyurethane) foam material having good heat insulation, sound insulation and shock resistance, and the sound insulation layer 202 may be made of POE (polyolefin elastomer) or EVA (Ethylene Vinyl Acetate Copolymer), both of which have good sound insulation properties.

Meanwhile, the fabric made of the PET-based material has the high-quality characteristics of high toughness, good elasticity, good wear resistance, good corrosion resistance, low price, environmental protection and the like, the blanket blank layer 203 is generally made of PET, and besides the PET material layer, a SBR (Polymerized Styrene Butadiene Rubber) material layer and a felt layer can be compounded, wherein the SBR material has the advantages of excellent wear resistance, heat resistance, aging resistance and the like, and the using effect of the blanket blank layer 203 can be improved.

When the automotive carpet structure of the embodiment is installed, firstly, the sound insulation pad 3 is laid on the automotive floor 1, the sound insulation pad 3 is directly attached to the automotive floor 1, then the wiring harness, the controller, the air conditioning duct and the like are installed, the wiring harness, the controller and the air conditioning duct are installed on the sound insulation pad 3 in an isobaric mode, and finally the carpet body 2 is installed.

Wherein, because the isobaric dress of air conditioner wind channel and pencil is on sound insulating pad 3, sound insulating pad 3 can avoid air conditioner wind channel and pencil etc. and car floor 1 friction abnormal sound and or friction damage, bottom such as air conditioner wind channel and pencil also need not to paste the sponge again and come the protection.

The automotive carpet structure of this embodiment through setting up the sound insulation pad 3, can be corresponding to accommodation space department, forms sound insulation-sound absorption-sound insulation's sound absorption and falls the structure of making an uproar between automotive floor 1, sound insulation pad 3 and carpet body 2 to reduce the noise and follow the automotive floor 1, the possibility that the transmission route of accommodation groove 204 to carpet body 2 got into the car in, and can make this automotive carpet structure have better sound absorption and fall the performance of making an uproar, thereby promote the use quality of car.

Example two

The embodiment relates to an automobile, wherein the automobile is provided with an automobile floor 1, and the automobile floor 1 is provided with an automobile carpet structure in the first embodiment.

The automobile of this embodiment through adopting the automotive carpet structure of embodiment one to can have better sound absorption and noise reduction performance, can improve the NVH performance of automobile, and then promote the automobile use quality.

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. An automotive carpet structure characterized in that:

including carpet body (2) and be located give sound insulation and fill up (3) of carpet body (2) below, just the lower part of carpet body (2) is equipped with holding tank (204), give sound insulation and fill up (3) will holding tank (204) seal, holding tank (204) with give sound insulation and fill up (3) and form the accommodation space who holds the electrical part jointly.

2. The automotive carpet structure of claim 1, wherein:

the sound insulation pad (3) is made of sound absorption cotton or felt.

3. The automotive carpet structure of claim 2, wherein:

the thickness of the sound insulation pad (3) is between 2mm and 5 mm.

4. The automotive carpet structure of claim 1, wherein:

the electric device comprises a controller (4), a wire harness or an air conditioning duct.

5. The automotive carpet structure of claim 1, wherein:

be equipped with on sound-proof pad (3) with via hole (301) of intercommunication in holding tank (204), the electrical part is through wearing to establish connecting piece (5) in via hole (301) are connected on automobile floor (1).

6. The automotive carpet structure of claim 5, wherein:

a gap delta is formed between the inner wall of the through hole (301) and the outer wall of the connecting piece (5), and the gap delta is between 2mm and 5 mm.

7. The automotive carpet structure of claim 5, wherein:

the left side and the right side of the automobile floor (1) are both connected with threshold beams (6), and a middle channel and a seat cross beam are connected to the automobile floor (1);

an overlap area is formed between at least one of the seat cross beam, the center tunnel and the threshold beam (6) and the sound insulation pad (3), and the width W of the overlap area is not less than 8mm.

8. The automotive carpet structure according to any one of claims 1 to 7, characterized in that:

the carpet comprises a carpet body (2) and is characterized in that the carpet body comprises a sound absorption layer (201), a sound insulation layer (202) and a carpet blank layer (203) which are sequentially arranged above the sound absorption layer (201), and the accommodating groove (204) is formed in the sound absorption layer (201).

9. The automotive carpet structure of claim 8, wherein:

the sound absorption layer (201) is bonded with the sound insulation layer (202), and/or the sound insulation layer (202) is bonded with the blanket layer (203).

10. An automobile, characterized in that:

the automobile comprises an automobile floor (1), wherein the automobile floor (1) is provided with an automobile carpet structure as claimed in any one of claims 1 to 9.