Automobile rear quarter outer panel reinforcement assembly

Abstract

The utility model discloses a car rear wall outer plate reinforcing plate assembly, including reinforcing plate body, reinforcing plate body is connected with rear wall outer plate through buckle connection structure, the reinforcing plate body still is equipped with the positioning structure for cooperating with rear wall outer plate, the reinforcing plate body is the sandwich structure of double -deck board sandwich sound -absorbing material, the utility model discloses a buckle connection replaces traditional bolt connection, and cooperation accurate positioning boss and positioning recess, has realized the quick alignment and installation of reinforcing plate assembly, and the worker only needs to aim at the buckle slot, and presses to complete the assembly, greatly shortens the assembly time, and reduced the operation difficulty and manual cost, and effectively avoided the assembly error of position deviation simultaneously, improved production efficiency and product consistency.

Description

Technical Field

[0001] This utility model belongs to the field of automotive body structure technology, and particularly relates to the automotive rear outer panel reinforcement assembly. Background Technology

[0002] The rear panel reinforcement assembly is an important component of the vehicle body structure, mainly used to enhance the rigidity and strength of the rear panel.

[0003] Traditional reinforcement plate assemblies are usually assembled using bolt connections, which involves complex assembly processes, long time consumption, and high skill requirements for workers. Furthermore, inaccurate positioning can easily lead to assembly errors, affecting product quality and production efficiency. Utility Model Content

[0004] This utility model addresses the problems existing in the prior art by proposing the following technical solution: The rear outer panel reinforcement assembly of an automobile includes a reinforcement plate body, which is connected to the rear outer panel via a snap-fit ​​connection structure; the reinforcement plate body is also provided with a positioning structure for cooperating with the rear outer panel; the reinforcement plate body is a sandwich structure with double-layer plates sandwiching sound-absorbing material.

[0005] As a preferred embodiment of the above technical solution, the buckle connection structure includes multiple buckles disposed on the edge of the reinforcing plate body, and the buckles are adapted to the pre-set slots on the rear outer panel.

[0006] As a preferred embodiment of the above technical solution, the positioning structure includes at least two positioning bosses and at least two positioning grooves disposed on the reinforcing plate body. The positioning bosses are adapted to the positioning holes on the rear outer plate, and the positioning grooves are adapted to the positioning ribs on the rear outer plate.

[0007] As a preferred embodiment of the above technical solution, the sandwich structure includes an outer layer, an inner layer, and sound-absorbing cotton filled between the outer layer and the inner layer.

[0008] As a preferred embodiment of the above technical solution, a high-damping material layer is further provided on the reinforcing plate body, and the high-damping material layer is attached to the inner surface of the outer plate and / or the inner plate.

[0009] As a preferred embodiment of the above technical solution, a sealing strip mounting groove is provided at the joint between the reinforcing plate body and the rear outer panel.

[0010] The beneficial effects of this utility model are as follows: In this application, snap-fit ​​connections replace traditional bolt connections. With precise positioning bosses and grooves, the quick alignment and installation of the reinforcing plate assembly are achieved. Workers only need to align the snap-fit ​​with the groove and press to complete the assembly, which greatly shortens the assembly time, reduces the difficulty of operation and labor costs, and effectively avoids assembly errors caused by positional deviations, thereby improving production efficiency and product consistency. The sandwich structure with double-layer panels and sound-absorbing cotton effectively blocks and absorbs noise transmitted through the rear panel; the fine fiber structure of the sound-absorbing cotton captures and dissipates sound wave energy; the added high-damping material layer converts vibration energy into heat energy and dissipates it, suppressing structural vibration noise; combined with the sealing strip, multiple sound barriers are formed, significantly reducing the decibels of noise entering the vehicle and creating a quieter and more comfortable in-vehicle environment for drivers and passengers. The comprehensive positioning system (combination of bosses and grooves) ensures the stability of the connection after assembly, reduces the loosening and abnormal noise problems that may occur due to vibration during vehicle operation, and improves the durability and reliability of the product. Attached Figure Description

[0011] Figure 1 The diagram shows the assembly structure of the rear outer panel provided in an embodiment of the present invention. Figure 2 The diagram shows the assembly structure of the rear outer panel provided in an embodiment of the present invention. Figure 3 The diagram shows a partial cross-sectional structure provided in an embodiment of the present invention.

[0012] Legend: 1. Reinforcing plate body; 11. Outer layer plate; 12. Inner layer plate; 13. Sound-absorbing cotton; 100. Rear outer panel; 101. Slot; 102. Positioning hole; 103. Positioning rib; 2. Buckle; 3. Positioning boss; 4. Positioning groove; 5. High damping material layer; 6. Mounting groove. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0014] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a car rear outer panel reinforcement assembly. This assembly significantly improves assembly convenience and sound insulation and noise reduction performance through structural innovation.

[0015] like Figure 1 , Figure 2 and Figure 3 As shown in the embodiment of this utility model, the automobile rear outer panel reinforcement plate assembly mainly includes a reinforcement plate body 1.

[0016] In terms of ease of assembly, the edge of the reinforcing plate body 1 is provided with multiple clips 2, which serve as the main connecting structure. During assembly, the clips 2 are directly aligned and snapped into the pre-stamped grooves 101 on the outer rear panel 100 for quick connection. To ensure accurate assembly positioning, a positioning structure is also provided on the reinforcing plate body 1. This positioning structure includes two positioning bosses 3 and two positioning grooves 4. The positioning bosses 3 are cylindrical, and their positions correspond one-to-one with the positioning holes 102 on the outer rear panel 100. The positioning grooves 4 are U-shaped grooves, and their positions match the positioning ribs 103 on the outer rear panel 100. During assembly, the positioning bosses 3 are first inserted into the positioning holes 102, and the positioning ribs 103 are simultaneously embedded into the positioning grooves 4 to complete the initial accurate positioning. Then, all the clips 2 are pressed into the grooves 101 to complete the entire assembly process.

[0017] In terms of sound insulation and noise reduction, the reinforcing plate body 1 itself adopts a sandwich structure; such as Figure 3 As shown, the structure consists of an outer layer 11, sound-absorbing cotton 13, and an inner layer 12 from the outside to the inside. The outer layer 11 and the inner layer 12 are usually made of stamped metal sheets, and the sound-absorbing cotton 13 in the middle is high-performance polyester fiber cotton or glass wool, which is filled and fixed between the two metal sheets by means of adhesive or other methods. When noise impacts the reinforcing plate assembly, the outer layer 11 first reflects a part of the sound energy, and the sound waves that penetrate through it are repeatedly refracted and rubbed in the fiber network of the sound-absorbing cotton 13, and the sound energy is converted into heat energy and consumed.

[0018] To further enhance sound insulation and vibration reduction, a high-damping material layer 5 is attached to the inner surfaces of the outer layer 11 and the inner layer 12 facing the sound-absorbing cotton 13. This high-damping material layer 5 can be a damping asphalt sheet or an environmentally friendly butyl rubber damping plate. When the reinforcing plate is subjected to force due to vehicle body vibration, the high-damping material layer 5 will deform, converting mechanical vibration energy into internal heat energy and dissipating it, thereby suppressing the generation of vibration noise from the source.

[0019] In addition, a sealing strip mounting groove 6 is provided around the reinforcing plate body 1 for embedding a rubber sealing strip; when the reinforcing plate assembly is installed on the rear outer panel 100, the rubber sealing strip is pressed between the two, effectively sealing the assembly gap and blocking the path of noise directly entering the vehicle through the gap.

[0020] Through the above-mentioned structural design, this utility model integrates ease of assembly with sound insulation and noise reduction functions, thereby achieving a dual improvement in production efficiency and driving quality for automotive rear components.

[0021] Working principle: The assembly mechanism of "guiding-locking" and the multi-noise reduction mechanism of "blocking-absorbing-attenuating-sealing" work together to achieve efficient and precise assembly during the assembly process. When the reinforcing plate body 1 approaches the rear outer plate 100, the positioning boss 3 on it and the positioning hole 102 on the rear outer plate 100 form a cylindrical surface fit, which effectively eliminates the translational deviation in the plane. The positioning groove 4 and the positioning rib 103 on the rear outer plate 100 form a prismatic surface fit, which eliminates the rotational deviation. These two sets of positioning elements constitute an all-round precise positioning system, ensuring that all buckles 2 can be accurately suspended above the corresponding slot 101 in advance. Then, the worker only needs to apply vertical pressure. After the elastic arm of the buckle 2 deforms, it is inserted into the slot 101 and springs back to lock, thus simplifying the complex multi-step assembly into a one-step operation of "placement-pressing", which greatly improves the assembly efficiency and accuracy.

[0022] In terms of sound insulation and noise reduction, this assembly constructs multiple efficient barriers through the coordinated design of materials and structure: when external noise impacts, the outer layer 11 first reflects part of the sound energy according to the mass law; after the penetrating sound waves enter the sound-absorbing cotton 13 inside the sandwich structure, they undergo repeated reflection, refraction and friction in the complex pore network composed of its fine fibers, and the sound energy is converted into heat energy and consumed in large quantities, which is especially effective against mid-to-high frequency noise; at the same time, for low-frequency noise caused by structural vibration, the high-damping material layer 5 attached to the inner surface of the inner and outer layers deforms when the reinforcing plate vibrates, converting the vibration mechanical energy into heat energy and dissipating it, thereby suppressing the generation of secondary noise from the source; finally, the rubber sealing strip installed in the sealing strip mounting groove 6 is tightly pressed at the joint between the reinforcing plate and the rear outer panel, completely blocking the leakage path of sound directly entering the vehicle through the assembly gap.

[0023] In summary, this reinforcement plate assembly achieves a double leap in ease of assembly and quiet driving experience through the deep integration of mechanical and acoustic principles.

[0024] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A rear panel reinforcement assembly for automobiles, comprising a reinforcement body (1), characterized in that: The reinforcing plate body (1) is connected to the rear outer panel (100) through a snap-fit ​​connection structure; the reinforcing plate body (1) is also provided with a positioning structure for cooperating with the rear outer panel (100); the reinforcing plate body (1) is a sandwich structure with double-layer plate sandwiching sound-absorbing material.

2. The automotive rear outer panel reinforcement assembly according to claim 1, characterized in that: The buckle connection structure includes multiple buckles (2) disposed on the edge of the reinforcing plate body (1), and the buckles (2) are adapted to the pre-set slots (101) on the rear outer plate (100).

3. The automotive rear outer panel reinforcement assembly according to claim 1, characterized in that: The positioning structure includes at least two positioning bosses (3) and at least two positioning grooves (4) provided on the reinforcing plate body (1). The positioning bosses (3) are adapted to the positioning holes (102) on the rear outer plate (100), and the positioning grooves (4) are adapted to the positioning ribs (103) on the rear outer plate (100).

4. The automotive rear outer panel reinforcement assembly according to claim 1, characterized in that: The sandwich structure includes an outer layer (11), an inner layer (12), and sound-absorbing cotton (13) filled between the outer layer (11) and the inner layer (12).

5. The automotive rear outer panel reinforcement assembly according to claim 4, characterized in that: The reinforcing plate body (1) is also provided with a high damping material layer (5), which is attached to the inner surface of the outer plate (11) and / or the inner plate (12).

6. The automotive rear outer panel reinforcement assembly according to any one of claims 1 to 5, characterized in that: A sealing strip mounting groove (6) is provided at the joint between the reinforcing plate body (1) and the rear outer plate (100).

Images