Sealing structure for improving SUV vehicle door wind noise leakage sound

Abstract

The utility model discloses a sealing structure for improving SUV vehicle door wind noise leakage sound. The sealing structure comprises a vehicle door metal plate and a door trim which are matched with each other. A sinking groove is formed in the periphery of the side, making contact with the automobile door metal plate, of the door trim, and sealing foam is installed in the sinking groove. The sealing foam is installed between the automobile door metal plate and the installation face of the door trim, a leakage path at the position is sealed, and the sinking groove is additionally formed in the door trim to guarantee installation and fixation of the sealing foam, so that noise cannot be directly transmitted into an automobile; the utility model has the advantages of simple structure and high installation reliability; in addition, the device has the advantages of being low in cost and obvious in wind noise improvement effect.

Description

Technical Field

[0001] This utility model relates to the field of automotive technology, specifically to a sealing structure for improving wind noise leakage in SUV vehicle doors. Background Technology

[0002] In recent years, with the improvement of people's living standards, the NVH performance of automobiles has received increasing attention and has gradually become a key factor in differentiating vehicle quality. Simultaneously, with the continuous improvement of internal combustion engine technology and the application of new energy technologies, powertrain noise has been significantly reduced, making wind noise a relatively prominent aspect of NVH. Against this backdrop, high-speed wind noise control has become a key research focus and a problem that major automakers need to solve.

[0003] Studies show that powertrain noise, tire noise, and road noise dominate at low and medium speeds, while wind noise becomes the primary noise source at high speeds (over 80 km / h). Based on the different paths of transmission into the vehicle interior, wind noise is generally divided into two types: one is "leakage noise," also known as air intake noise, which enters the vehicle through sealing strips, glass channels, and gaps in the body, manifesting as high-speed airflow noise (hissing sound); the other is pulsating pressure noise generated by the interaction between the vehicle and air, radiated into the vehicle interior through the body and glass. During high-speed vehicle operation, high-frequency airflow noise from outside the vehicle is transmitted into the interior through the installation gaps between the door sheet metal and door trim, generating "leakage noise" and causing customer complaints. Therefore, we have made improvements and proposed a sealing structure to improve wind noise leakage in SUV vehicle doors. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] This utility model discloses a sealing structure for improving wind noise leakage in SUV vehicle doors, comprising a door sheet metal and a door trim panel that cooperate with each other; the door trim panel has a groove around its periphery on the side that contacts the door sheet metal, and sealing foam is installed in the groove.

[0006] As a preferred embodiment of this utility model, the sealing foam is made of flame-retardant EVA foam.

[0007] As a preferred embodiment of this utility model, the settling trough is distributed on the upper side and the left and right sides.

[0008] As a preferred embodiment of this utility model, the sealing foam is adhered to the settling tank by an adhesive layer.

[0009] As a preferred embodiment of this utility model, the sealing foam is disposed in a compressed state between the mounting surfaces of the door sheet metal and the door trim panel.

[0010] As a preferred embodiment of this utility model, the shape of the sealing foam matches the shape of the sink.

[0011] As a preferred embodiment of this utility model, the width of the settling tank is 2-4cm and the thickness is 1-2cm.

[0012] The beneficial effects of this utility model are:

[0013] This sealing structure for improving wind noise leakage in SUV vehicle doors features a groove around the perimeter of the door trim panel on the side in contact with the door sheet metal. Sealing foam is installed within this groove, and the sealing foam is placed between the door sheet metal and the door trim panel mounting surface to seal the leakage path. The groove on the door trim panel ensures the sealing foam is securely installed, preventing noise from being directly transmitted into the vehicle interior. This invention has the advantages of simple structure, high installation reliability, low cost, and significant improvement in wind noise reduction. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the sheet metal structure of a door for improving the sealing structure of a SUV door to reduce wind noise leakage.

[0016] Figure 2 This is a schematic diagram of the door trim panel of the present invention, which is a sealing structure for improving wind noise leakage in SUV vehicle doors.

[0017] Figure 3 This is a schematic diagram of the sealing foam of a sealing structure for improving wind noise leakage in SUV vehicle doors.

[0018] In the picture: 1. Door sheet metal; 2. Door trim panel; 3. Recessed groove; 4. Sealing foam. Detailed Implementation

[0019] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0020] Example: Figure 1 , Figure 2 and Figure 3As shown, this utility model discloses a sealing structure for improving wind noise leakage in SUV vehicle doors, comprising a door sheet metal 1 and a door trim panel 2 that cooperate with each other. The key feature is that the door trim panel 2 has a recessed groove 3 on its periphery on the side contacting the door sheet metal 1, and a sealing foam 4 is installed within the recessed groove 3. The sealing foam 4 is installed between the mounting surfaces of the door sheet metal 1 and the door trim panel 2 to seal the leakage path, and the recessed groove 3 on the door trim panel 2 ensures the sealing foam 4 is fixed in place, preventing noise from being directly transmitted into the vehicle interior. This utility model has the advantages of simple structure, high installation reliability, low cost, and significant improvement in wind noise.

[0021] The sealing foam 4 is made of flame-retardant EVA foam, thus having a good flame-retardant effect.

[0022] The settling trough 3 is distributed on the upper side and the left and right sides.

[0023] The sealing foam 4 is adhered to the settling tank 3 by an adhesive layer.

[0024] The sealing foam 4 is disposed in a compressed state between the mounting surfaces of the door sheet metal 1 and the door trim panel 2. The shape of the sealing foam 4 matches the shape of the recessed groove 3; the width of the recessed groove 3 is 2-4cm and the thickness is 1-2cm.

[0025] Working principle: A sealing foam 4 is installed between the door sheet metal 1 and the door trim panel 2 to seal the leakage path. A groove 3 is added to the door trim panel 2 to ensure the installation and fixation of the sealing foam 4, so that noise cannot be directly transmitted to the vehicle. This utility model has the advantages of simple structure, high installation reliability, low cost and significant improvement in wind noise.

[0026] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sealing structure for improving wind noise leakage of a SUV vehicle door, comprising a door sheet metal (1) and a door trim (2) that cooperate with each other; characterized in that: The door trim (2) is provided with a recessed groove (3) around the side in contact with the door sheet metal (1), and a sealing foam (4) is installed in the recessed groove (3).

2. A sealing structure for improving wind noise leakage of SUV vehicle doors according to claim 1, characterized in that: The sealing foam (4) is made of flame-retardant EVA foam.

3. A sealing structure for improving wind noise leakage of SUV vehicle doors according to claim 1, characterized in that: The sinks (3) are distributed on the upper side and the left and right sides.

4. A sealing structure for improving wind noise leakage of SUV vehicle doors according to claim 1, characterized in that: The sealing foam (4) is adhered to the inside of the sink (3) via an adhesive layer.

5. The sealing structure for improving wind noise leakage of SUV vehicle doors according to claim 1, characterized in that: The sealing foam (4) is arranged in an extruded state between the mounting surfaces of the vehicle door sheet metal (1) and the door trim (2).

6. The sealing structure for improving wind noise leakage of SUV vehicle doors according to claim 1, characterized in that: The configuration shape of the sealing foam (4) matches the shape of the sink (3).

7. The sealing structure for improving wind noise leakage of SUV vehicle doors according to claim 1, characterized in that: The width of the sink (3) is 2-4 cm, and the thickness is 1-2 cm.

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