CN203255095U - Cabin front coaming and thermal-insulation pad installing assembly and automobile - Google Patents

Abstract

The utility model provides an installation assembly of a heat-insulation pad for a front panel of an engine room and an automobile, belonging to the technical field of automobiles. The engine room cowl heat insulation pad installation assembly includes a front wall and a heat insulation pad fixed on the front wall; the front wall is provided with at least one welding bolt; the heat insulation pad is provided with at least one The mounting holes corresponding to the welding bolts, and the welding bolts are interference-fitted in the corresponding mounting holes; the diameter of each mounting hole in the first direction is smaller than the diameter of the welding bolts, and each mounting hole is in the first direction The length in the vertical second direction is greater than the diameter of the welding bolt. The installation assembly of the engine room cowl heat insulation pad of the utility model and the interference fit between the installation hole of the heat insulation pad and the welding bolts of the front wall of the automobile pre-install and fix the heat insulation pad on the front wall without the need In addition, other fixing parts are used to fix the heat insulation pad, which reduces assembly procedures, improves assembly efficiency, reduces types and quantities of parts, and reduces costs.

Description

Installation assembly of engine room dash panel heat insulation pad and automobile

technical field

The utility model relates to the technical field of automobiles, in particular to an installation assembly of a heat-insulation pad for a front panel of a nacelle and an automobile.

Background technique

Under the premise of the continuous improvement of NVH (Noise, Vibration, Harshness, English abbreviation for noise, vibration and comfort) and thermal performance requirements of modern automobiles, the front wall insulation pad has become a necessary functional part of general automobiles.

During the installation process of the engine room cowl heat insulation pad, it is usually necessary to design about 4 installation points and fix it on the cowl panel first. Then carry out the work of laying and installing the pipelines and wiring harnesses in the engine room. After the other components on the dash panel are assembled, the engine room dash panel heat insulation pad is firmly fixed on the dash panel through various wiring harnesses and pipeline clips.

However, after the engine room cowl insulation pad is installed, most of the installation points specially positioned for installation become a redundant design, which causes waste and increases the cost.

Utility model content

In view of this, it is necessary to provide a cost-reduced engine room dash panel heat insulation pad installation assembly and an automobile.

In order to solve the above problems, according to the first aspect of the present utility model, there is provided an engine room dash panel heat insulation pad installation assembly, which includes a dash panel and a heat insulation pad fixed to the dash panel; There is at least one welding bolt on the coaming plate; at least one installation hole corresponding to the welding bolt is arranged on the heat insulation pad, and the welding bolt is interference installed in the corresponding installation hole; each of the installation The length of the hole in the first direction is smaller than the diameter of the welding bolt, and the length of each mounting hole in the second direction perpendicular to the first direction is larger than the diameter of the welding bolt.

Further, the heat insulation pad includes at least one thinned depression area, and the installation holes are arranged on the bottom wall of the corresponding thinned depression area.

Further, the thickness of the bottom wall of each thinned depression area is 1-3mm.

Further, the welding bolts pass through the corresponding mounting holes and are accommodated in the corresponding thinning depressions.

Further, the heat insulation pad is a thermoplastic fiber heat insulation pad.

On the other hand, the utility model also provides an automobile, which includes a vehicle body, and the vehicle body includes the above-mentioned installation assembly for the heat insulation pad of the dash panel of the cabin.

The beneficial effects of the utility model:

The installation assembly of the engine room cowl heat insulation pad of the utility model and the interference fit between the installation hole of the heat insulation pad and the welding bolt of the front wall of the automobile pre-install and fix the heat insulation pad on the front wall without the need In addition, other fixing parts are used to fix the heat insulation pad, which reduces assembly procedures, improves assembly efficiency, reduces types and quantities of parts, and reduces costs.

Description of drawings

Fig. 1 shows the structural representation of the engine room cowl heat insulation pad installation assembly of the utility model, and the engine room cowl heat insulation pad installation assembly includes the engine room cowl heat insulation pad;

Figure 2 shows a partial enlarged view of the heat insulation pad of the front wall of the engine room in Figure 1;

Fig. 3 shows a schematic cross-sectional view along line A-A in Fig. 1 .

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Please refer to FIG. 1 , the utility model provides an automobile, which includes a vehicle body. The vehicle body includes an installation assembly 1 for the insulation pad of the front wall of the engine room.

Please refer to FIG. 2 and FIG. 3 , the installation assembly 1 of the engine room dash panel heat insulation pad includes a dash panel 11 and a heat insulation pad 13 installed on the dash panel 11 . At least one welding bolt 111 is provided on the dash panel 11 .

The heat insulation pad 13 includes at least one thinned depression area 131 , preferably, each thinned depression area 131 is formed by hot pressing, and the thickness of the bottom wall of each thinned depression area 131 is 1-3 mm. A mounting hole 133 penetrating through the heat insulation pad 13 is formed on the bottom wall of each thinned recessed area 131 . The length of the mounting hole 133 in the first direction is less than the diameter of the welding bolt 111, and the length of the mounting hole 133 in the second direction perpendicular to the first direction is greater than the diameter of the welding bolt 111; wherein, the first direction of the mounting hole 133 refers to The distance between the mounting hole 133 and the contact point where the periphery of the welding bolt 111 is clipped.

The heat insulation pad 13 is made of traditional materials such as thermoplastic fibers. When the heat insulation pad 13 is thinned to form the thinned concave region 131 , the thinned concave region 131 has a certain hardness. In this way, because the pressed and depressed area 131 around the 133 has a certain hardness, the welding bolt 111 will not be easily loosened when mated with the 133 .

Preferably, in this embodiment, the installation hole 133 is rectangular, the length of the installation hole 133 in the first direction (ie the width of the rectangle) is smaller than the diameter of the welding bolt 111, and the installation hole 133 is in the second direction perpendicular to the first direction. The length in two directions (ie, the length of the rectangle) is greater than the diameter of the welding bolt 111 .

It should be noted that the shape of the mounting hole 133 is not limited to a rectangle, and may also be oval, etc., as long as the length of the mounting hole 133 in the first direction is smaller than the diameter of the welding bolt 111, and the mounting hole 133 is in the same position as the first direction. The length of the second direction perpendicular to one direction is greater than the diameter of the welding bolt 111, so that the heat insulating pad 13 is pre-installed and fixed to the dash panel 11.

During the assembly process of the engine room cowl heat insulation pad, the installation hole 133 of the heat insulation pad 13 is sleeved on the welding bolt 111 of the dash panel 11, and the welding bolt 111 passes through the installation hole 133 and is accommodated in the corresponding The inside of the depressed area 131 is thinned. At this time, the mounting holes 133 and the welding bolts 111 are connected through an interference fit, so that the heat insulation pad 13 is installed on the dash panel 11, and the heat insulation pad 13 is pre-installed and fixed, and because the heat insulation pad 13 Generally, the weight is light, and the purpose of installation and fixing can be achieved through the fixed cooperation of the installation holes 133 and the welding bolts 111 . Therefore, after the pipelines, wiring harnesses and other parts of the engine room cowl heat insulation pad are assembled, there is no need to use other fixing parts to fix the heat insulation pad 13, which reduces the assembly procedure, improves assembly efficiency, and reduces The type and quantity of parts reduces the cost.

From the above, it can be known that the installation assembly of the engine room cowl heat insulation pad of the utility model and the automobile pass the interference fit between the installation hole 133 of the heat insulation pad 13 and the welding bolt 111 of the front wall 11, and the heat insulation pad 13 is pre-installed. Installed and fixed on the dash panel 11, no need to use other fixing parts to fix the heat insulation pad 13, which reduces the assembly procedure, improves the assembly efficiency, reduces the types and quantities of parts, and reduces the cost.

What has been described above is only an embodiment of the present utility model. For those skilled in the art, without departing from the inventive concept of the present utility model, some modifications and improvements can be made, and these all belong to the protection scope of the present utility model.

Claims (6)

1. An engine room dash panel heat insulation pad installation assembly, which includes a dash panel and a heat insulation pad fixed to the dash panel; It is characterized in that at least one welding bolt is provided on the dash panel; The heat insulation pad is provided with at least one mounting hole corresponding to the welding bolt, and the welding bolt is interference mounted in the corresponding mounting hole; The length of each mounting hole in a first direction is smaller than the diameter of the welding bolt, and the length of each mounting hole in a second direction perpendicular to the first direction is greater than the diameter of the welding bolt. 2. The installation assembly of the engine room cowl heat insulation pad according to claim 1, characterized in that, the heat insulation pad includes at least one thinned recessed area, and the installation hole is arranged in the corresponding thinned area. The bottom wall of the recessed area. 3 . The installation assembly of the engine room dash panel heat insulation pad according to claim 2 , wherein the thickness of the bottom wall of each said thinned recessed area is 1-3 mm. 4 . 4 . The installation assembly of the engine room cowl heat insulation pad according to claim 2 , wherein the welding bolts pass through the corresponding installation holes and are accommodated in the corresponding thinned depressions. 5 . 5 . The installation assembly of the engine room dash panel heat insulation pad according to claim 2 , wherein the heat insulation pad is a thermoplastic fiber heat insulation pad. 6 . 6. An automobile, comprising a vehicle body, characterized in that the vehicle body comprises the installation assembly of the engine room dash panel heat insulation pad according to any one of claims 1 to 5.

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