Plastic baffle for automobiles

Abstract

The application relates to a plastic baffle for an automobile and relates to the technical field of automobile parts, and comprises a bottom plate. The application can effectively improve the positioning precision and overall stability of the plastic baffle during installation by arranging multiple positioning elements and reinforcing structures. During installation, sleeves matched with the positioning pins are pre-buried in the corresponding positions of the vehicle body support, initial positioning is realized through the positioning pins, then the bolts are sequentially locked through the first fixing holes, the second fixing holes and the threaded holes of the vehicle body, subsequently, the inclined wedge blocks are in interference fit with the flanges of the vehicle body in the clamping grooves, reverse disengagement is prevented by using the self-locking principle of the inclined surface, the subsequent reinforcing plates form a box-shaped structure by wrapping the first positioning plate, the second positioning plate and the third positioning plate, the overall bending stiffness is improved, meanwhile, the design of the clamping grooves enhances the connection tightness between the components, and excellent performance can still be maintained under complex use environment.

Description

Technical Field

[0001] This application relates to the field of automotive parts technology, and in particular to a plastic baffle for automobiles. Background Technology

[0002] As an important component of the vehicle body or chassis, automotive baffles are primarily used for isolation, protection, or airflow guidance. They are also crucial auxiliary components both externally and internally of the vehicle, typically installed in key areas such as the chassis, near the wheels, engine compartment, and trunk. Made primarily of plastic, metal, or composite materials, they achieve multiple functions through precise assembly, including protection, airflow guidance, noise reduction, and structural reinforcement. They are key components for ensuring safe vehicle operation, improving user experience, and extending component lifespan. They are not a single-structure component but rather come in various types depending on their installation location and functional requirements. Furthermore, with the development of automotive technology, they are continuously iterated and upgraded in terms of materials, structure, and performance. Currently, most baffles on the market are made of metal or plastic, with plastic baffles gradually becoming the mainstream due to their advantages such as light weight, low cost, and corrosion resistance.

[0003] Regarding the aforementioned technologies, existing traditional plastic baffles typically rely on bolts for direct fixing or simple snap-fit ​​structures during installation, resulting in low positioning accuracy. If positioning deviations are not addressed promptly, they can negatively impact the vehicle's user experience. Furthermore, loose baffles can generate collision noises and wind noise during driving, disrupting the quietness of the vehicle interior. For new energy vehicles, this can also affect battery pack heat dissipation and protection, indirectly shortening the driving range and causing numerous inconveniences. Utility Model Content

[0004] The purpose of this application is to provide a plastic baffle for automobiles that has the advantage of high precision of multiple positioning elements, thus solving the problems mentioned in the background art.

[0005] The present application provides a plastic baffle for automobiles with the following technical solution: it includes a base plate, the top of which is fixedly connected to a first positioning plate, a second positioning plate and a third positioning plate, and the top of which is fixedly connected to two first fixing seats. The top of the first fixing seats is provided with a positioning pin and a first fixing hole. The top of the base plate is fixedly connected to two second fixing seats, the top of which is provided with a second fixing hole. The sides of the first positioning plate, the second positioning plate and the third positioning plate are fixedly connected to a reinforcing plate, and the sides of the reinforcing plate are fixedly connected to a plurality of inclined wedge-shaped blocks. A snap-fit ​​groove is provided between the first positioning plate, the second positioning plate, the third positioning plate and the reinforcing plate. By adopting the above technical solution and setting multiple positioning elements and reinforcement structures, the positioning accuracy and overall stability of the plastic baffle during installation can be effectively improved. During installation, sleeves matching the positioning pins are pre-embedded at the corresponding positions of the vehicle body bracket. Initial positioning is achieved through the positioning pins. Then, bolts are passed through the first fixing hole, the second fixing hole and locked to the threaded hole of the vehicle body in sequence. Subsequently, the inclined wedge block is interference-fitted with the vehicle body flange in the snap-fit ​​groove. The inclined self-locking principle is used to prevent reverse dislodgement. The subsequent reinforcement plate forms a box-shaped structure by wrapping the first positioning plate, the second positioning plate and the third positioning plate, which improves the overall bending stiffness. At the same time, the snap-fit ​​groove design enhances the tightness of the connection between the components, ensuring that it can maintain excellent performance in complex use environments. In addition, the addition of the inclined wedge block not only optimizes the force distribution, but also reduces the impact of external impacts on the baffle to a certain extent. This design takes into account both practicality and durability.

[0006] Preferably, a plurality of positioning blocks are fixedly connected to the side of the reinforcing plate, and magnetic blocks are fixedly connected to both sides of the positioning blocks; By adopting the above technical solution and setting positioning blocks and magnetic blocks, the reinforcement plate and the vehicle body bracket can be quickly positioned and temporarily fixed, which greatly reduces the manual adjustment time during the installation process and improves assembly efficiency.

[0007] Preferably, two mounting strips are fixedly connected to the top of the base plate; By adopting the above technical solution and setting the mounting strip, additional support and fixing points can be provided for the plastic baffle, thereby enhancing its stability on the vehicle body.

[0008] Preferably, the top of the base plate has two mounting holes; By adopting the above technical solution and setting mounting holes, a secure connection between the base plate and the vehicle body can be easily achieved, while also providing convenience for subsequent maintenance and disassembly.

[0009] Preferably, a water-swellable strip is fixedly connected to the side of the reinforcing plate; By adopting the above technical solution and setting up water-swellable strips, the strips can automatically expand in humid environments, thereby filling any possible tiny gaps and enhancing the sealing between the reinforcing plate and the vehicle body frame.

[0010] Preferably, the base plate, the first positioning plate, the second positioning plate, the third positioning plate, and the reinforcing plate are made of carbon fiber composite material; By adopting the above technical solution and using carbon fiber composite materials, the weight of the overall structure can be reduced while maintaining high strength and corrosion resistance, thereby improving the durability and reliability of plastic baffles in automotive use.

[0011] Preferably, the surface of the reinforcing plate is provided with a hydrophobic layer; By adopting the above technical solution and setting a hydrophobic layer, the adhesion of moisture to the surface of the reinforced plate can be effectively reduced, thereby reducing the risk of corrosion or performance degradation caused by moisture.

[0012] Preferably, sealing strips are provided on both sides of the first positioning plate, the second positioning plate, and the third positioning plate, as well as on the inner side of the reinforcing plate; By adopting the above technical solution and setting a sealing strip, the overall sealing performance of the plastic baffle can be enhanced, effectively preventing the intrusion of external impurities such as dust or moisture, thereby protecting the internal structure from damage. At the same time, the elasticity of the sealing strip can also alleviate the vibration and impact generated during vehicle operation, improving the stability of the plastic baffle.

[0013] In summary, this application includes at least one of the following beneficial technical effects: This type of automotive plastic baffle, through the setting of multiple positioning elements and reinforcement structure, can effectively improve the positioning accuracy and overall stability of the plastic baffle during installation. During installation, a sleeve matching the positioning pin is pre-embedded at the corresponding position of the body bracket. The positioning pin achieves initial positioning. Then, bolts pass through the first fixing hole, the second fixing hole and the threaded hole of the body in sequence and lock. Subsequently, the inclined wedge block is interference-fitted with the body flange in the snap-fit ​​groove. The inclined self-locking principle is used to prevent reverse disengagement. The subsequent reinforcement plate forms a box-shaped structure by wrapping the first positioning plate, the second positioning plate and the third positioning plate, which improves the overall bending stiffness. At the same time, the snap-fit ​​groove design enhances the tightness of the connection between the components, ensuring that it can maintain excellent performance in complex use environments. In addition, the addition of the inclined wedge block not only optimizes the force distribution, but also reduces the impact of external impact on the baffle to a certain extent. This design takes into account both practicality and durability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall front view structure of this application; Figure 2 This is a schematic diagram of the overall bottom view of the structure of this application; Figure 3 This is a top view of the overall structure of this application; Figure 4 This is a schematic diagram of the overall side view structure of this application; Figure 5 for Figure 1 Enlarged structural diagram at point A in the middle.

[0015] In the picture: 1. Base plate; 2. First positioning plate; 3. Second positioning plate; 4. Third positioning plate; 5. First fixing seat; 6. Second fixing seat; 7. Positioning pin; 8. First fixing hole; 9. Second fixing hole; 10. Angled wedge block; 11. Mounting strip; 12. Mounting hole; 13. Reinforcing plate; 14. Snap-fit ​​groove; 15. Positioning block; 16. Magnetic block; 17. Water-swellable strip; 18. Carbon fiber composite material; 19. Hydrophobic layer; 20. Sealing strip. Detailed Implementation

[0016] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 This application will be described in further detail below.

[0017] Example 1: A plastic baffle for automobiles, see reference Figure 1 The system includes a base plate 1. A first positioning plate 2, a second positioning plate 3, and a third positioning plate 4 are fixedly connected to the top of the base plate 1. Two first fixing seats 5 are fixedly connected to the top of the base plate 1. Each first fixing seat 5 has a positioning pin 7 and a first fixing hole 8. Two second fixing seats 6 are fixedly connected to the top of the base plate 1. Each second fixing seat 6 has a second fixing hole 9. Reinforcing plates 13 are fixedly connected to the sides of the first positioning plates 2, 3, and 4. Several inclined wedge-shaped blocks 10 are fixedly connected to the sides of the reinforcing plates 13. A snap-fit ​​groove 14 is provided between the first positioning plates 2, 3, and 4 and the reinforcing plates 13. By setting multiple positioning elements and reinforcing structures, the positioning accuracy and overall stability of the plastic baffle during installation can be effectively improved. For qualitative purposes, during installation, a sleeve matching the positioning pin 7 is pre-embedded at the corresponding position of the vehicle body bracket. Initial positioning is achieved through the positioning pin 7. Then, bolts are passed through the first fixing hole 8 and the second fixing hole 9 in sequence and locked to the threaded hole of the vehicle body. Subsequently, the inclined wedge block 10 is interference-fitted with the vehicle body flange in the snap-fit ​​groove 14. The inclined self-locking principle is used to prevent reverse disengagement. The subsequent reinforcing plate 13 forms a box-shaped structure by wrapping the first positioning plate 2, the second positioning plate 3 and the third positioning plate 4, which improves the overall bending stiffness. At the same time, the design of the snap-fit ​​groove 14 enhances the tightness of the connection between the components, ensuring that excellent performance can still be maintained in complex use environments. In addition, the addition of the inclined wedge block 10 not only optimizes the force distribution, but also reduces the impact of external impact on the baffle to a certain extent. This design takes into account both practicality and durability.

[0018] Please see Figure 2The side of the reinforcing plate 13 is fixedly connected with several positioning blocks 15, and magnetic blocks 16 are fixedly connected to both sides of the positioning blocks 15. By setting the positioning blocks 15 and magnetic blocks 16, the reinforcing plate 13 can be quickly positioned and temporarily fixed to the vehicle body bracket, which greatly reduces the manual adjustment time during the installation process and improves the assembly efficiency. The top of the base plate 1 is fixedly connected with two mounting strips 11. By setting the mounting strips 11, additional support and fixing points can be provided for the plastic baffle, which enhances its stability on the vehicle body.

[0019] Please see Figure 2 The top of the base plate 1 has two mounting holes 12. By setting the mounting holes 12, it is possible to make a firm connection between the base plate 1 and the vehicle body, and at the same time, it provides convenience for subsequent maintenance and disassembly. The side of the reinforcing plate 13 is fixedly connected with a water-swellable strip 17. By setting the water-swellable strip 17, it can automatically expand in a humid environment, thereby filling any possible tiny gaps and enhancing the sealing between the reinforcing plate 13 and the vehicle body bracket.

[0020] Please see Figure 3 , Figure 4 and Figure 5 The base plate 1, first positioning plate 2, second positioning plate 3, third positioning plate 4, and reinforcing plate 13 are all made of carbon fiber composite material 18. By using carbon fiber composite material 18, the weight of the overall structure can be reduced while maintaining high strength and corrosion resistance, thereby improving the durability and reliability of the plastic baffle in automotive use. The surface of the reinforcing plate 13 is provided with a hydrophobic layer 19. By providing the hydrophobic layer 19, the adhesion of moisture on the surface of the reinforcing plate 13 can be effectively reduced, thereby reducing the risk of corrosion or performance degradation caused by moisture. Sealing strips 20 are provided on both sides of the first positioning plate 2, second positioning plate 3, and third positioning plate 4 and on the inner side of the reinforcing plate 13. By providing the sealing strips 20, the overall sealing performance of the plastic baffle can be enhanced, effectively preventing the intrusion of dust or moisture and external impurities, thereby protecting the internal structure from damage. At the same time, the elastic properties of the sealing strips 20 can also alleviate the vibration and impact generated during vehicle operation, improving the stability of the plastic baffle.

[0021] The implementation principle of this application embodiment is as follows: First, carry out pre-installation preparation work. The staff needs to confirm that the corresponding position of the vehicle body bracket has been pre-embedded with a sleeve that matches the top positioning pin 7 of the first fixed seat 5 on the plastic baffle. At the same time, check whether each part of the baffle is intact to ensure that there are no problems such as damage or deformation, so as to lay the foundation for subsequent accurate installation. Then, the positioning block 15 and the magnetic block 16 are used to achieve temporary fixation and fine-tuning of position. The positioning block 15 on the side of the reinforcing plate 13 will contact the vehicle body bracket. Then, the magnetic blocks 16 on both sides of the positioning block 15 are magnetically attracted to the vehicle body bracket. On the one hand, the baffle is temporarily fixed to prevent the baffle from shifting after the initial positioning. On the other hand, the staff can make fine adjustments to the position of the baffle according to the fit between the positioning block 15 and the vehicle body bracket to reduce the position deviation when fixing the bolts later. Then, a positioning operation is performed. The positioning pin 7 of the plastic baffle is aligned with the sleeve pre-embedded on the vehicle body bracket and inserted. The positioning pin 7 and the sleeve are matched and cooperated to achieve the positioning of the baffle on the vehicle body. Subsequently, the bolt fixing operation is carried out. The staff uses bolts to pass through the first fixing hole 8 on the top of the first fixing seat 5 and the second fixing hole 9 on the top of the second fixing seat 6 in sequence, and then aligns them with the pre-set threaded holes on the vehicle body and gradually tightens them. During this process, the tightening effect of the bolts makes the connection between the baffle and the vehicle body gradually tighter. At the same time, combined with the previous positioning and temporary fixing, it ensures that the baffle is installed in a precise position on the vehicle body, effectively avoiding the problem of low positioning accuracy in traditional installation methods. Afterwards, the interference fit between the inclined wedge block 10 and the body flange is completed, and the protective function of the reinforcement structure is activated. As the bolts are tightened, several inclined wedge blocks 10 on the side of the reinforcement plate 13 will gradually be inserted into the body flange. Since the inclined wedge block 10 and the body flange adopt an interference fit and utilize the inclined self-locking principle, it can effectively prevent the inclined wedge block 10 from coming out in the opposite direction, thereby enhancing the connection stability between the baffle and the body. At the same time, the box-shaped structure formed by the reinforcement plate 13 wrapping the first positioning plate 2, the second positioning plate 3 and the third positioning plate 4 begins to play its role, improving the overall bending stiffness of the baffle and enabling it to better resist external impacts in subsequent use. Finally, all protective components enter the working state to ensure the long-term stable operation of the baffle. Subsequently, the water-swellable strips 17 on the side of the reinforcing plate 13 will automatically expand in humid environments, filling any tiny gaps that may exist between the reinforcing plate 13 and the vehicle body bracket, enhancing the sealing performance. Then, the hydrophobic layer 19 on the surface of the reinforcing plate 13 effectively reduces the adhesion of moisture to its surface, reducing the risk of corrosion caused by moisture. Subsequently, the sealing strips 20 on both sides of the first positioning plate 2, the second positioning plate 3, and the third positioning plate 4 and the inside of the reinforcing plate 13 can prevent dust or moisture and external impurities from invading the internal structure of the baffle, protecting the internal components from damage. At the same time, the elasticity of the sealing strips 20 can alleviate the vibration and impact generated during vehicle operation, improving the stability and durability of the baffle, so that the baffle can still maintain excellent performance in complex usage environments.

Claims

1. A plastic baffle for automobiles, comprising a base plate (1), characterized in that: The top of the base plate (1) is fixedly connected to a first positioning plate (2), a second positioning plate (3) and a third positioning plate (4). The top of the base plate (1) is fixedly connected to two first fixing seats (5). The top of the first fixing seat (5) is provided with a positioning pin (7). The top of the first fixing seat (5) is provided with a first fixing hole (8). The top of the base plate (1) is fixedly connected to two second fixing seats (6). The top of the second fixing seat (6) is provided with a second fixing hole (9). The sides of the first positioning plate (2), the second positioning plate (3) and the third positioning plate (4) are fixedly connected to a reinforcing plate (13). The sides of the reinforcing plate (13) are fixedly connected to several inclined wedge blocks (10). The first positioning plate (2), the second positioning plate (3), the third positioning plate (4) and the reinforcing plate (13) are provided with a snap-fit ​​groove (14).

2. The automotive plastic baffle according to claim 1, characterized in that: The side of the reinforcing plate (13) is fixedly connected with a number of positioning blocks (15), and magnetic blocks (16) are fixedly connected to both sides of the positioning blocks (15).

3. The automotive plastic baffle according to claim 1, characterized in that: The top of the base plate (1) is fixedly connected to two mounting strips (11).

4. A plastic baffle for automobiles according to claim 1, characterized in that: The base plate (1) has two mounting holes (12) on its top.

5. A plastic baffle for automobiles according to claim 1, characterized in that: The side of the reinforcing plate (13) is fixedly connected with a water-swellable strip (17).

6. A plastic baffle for automobiles according to claim 1, characterized in that: The base plate (1), the first positioning plate (2), the second positioning plate (3), the third positioning plate (4) and the reinforcing plate (13) are made of carbon fiber composite material (18).

7. A plastic baffle for automobiles according to claim 1, characterized in that: The surface of the reinforcing plate (13) is provided with a hydrophobic layer (19).

8. A plastic baffle for automobiles according to claim 1, characterized in that: Sealing strips (20) are provided on both sides of the first positioning plate (2), the second positioning plate (3), and the third positioning plate (4) and on the inner side of the reinforcing plate (13).

Images