Impact-resistant automobile side door panel

Abstract

This application discloses an impact-resistant automotive side door panel, relating to the field of automotive door panels, including a door ring, an anti-collision beam, an energy-absorbing box, a support plate, a first reinforcing plate, and a second reinforcing plate. The I-shaped support plate reinforces the core rigidity of the door ring's B-pillar, while the energy-absorbing box with a pre-set V-groove absorbs collision energy. During a collision, it can absorb energy in advance, and the V-groove ensures stable crushing deformation. The anti-collision beam provides anti-detachment protection. An L-shaped reinforcing plate specifically strengthens the load-bearing capacity of key stress-bearing parts of the door ring. A U-shaped support frame enhances the installation stability of the anti-collision beam, comprehensively improving the side impact resistance of the side door panel. Integrated nut plates, mounting brackets, and nut boxes facilitate the secure installation of the door limiter, fender, and door latch, and reinforce the structural strength of the corresponding mounting position of the door ring, preventing structural failure after a collision and improving the door ring's impact protection performance.

Description

Technical Field

[0001] This invention relates to the field of automotive door panel technology, and in particular to an impact-resistant automotive side door panel. Background Technology

[0002] The car door is a core openable and closable functional component of the car body. It is the core passage for passengers to enter and exit the vehicle and has core functions such as sealing and sound insulation, collision protection, visibility and lighting, and accessory integration. It is usually composed of three major modules: the door body, opening and closing accessories, and interior cover. It is a key body structural component that connects the interior and exterior spaces of the vehicle and ensures the safety of passengers.

[0003] The door ring is the main component that maintains the strength of the main body of the door. The door ring is made of hot-formed high-strength steel and is a full-circumference closed-loop reinforced frame for the door. It can effectively disperse the impact force and suppress the deformation and intrusion of the door during side collisions, maximizing the survival space for occupants. It is the core protective structure for improving the side collision safety performance of the whole vehicle.

[0004] Existing door rings mainly rely on their one-piece molding process to provide strength support for the door body. However, the inner cavity of the door ring lacks a targeted reinforcement structure, which results in weak local load-bearing capacity of the door ring between the B-pillar and A-pillar. During a collision, the whole door ring is prone to detachment and lacks an auxiliary energy-absorbing structure, resulting in weak impact resistance. Once the door ring absorbs energy beyond its limit, it will directly cause injury to the user and affect the side protection effect of the vehicle. Summary of the Invention

[0005] (a) Technical problems to be solved To address the problems existing in the prior art, the present invention provides an impact-resistant automotive side door panel.

[0006] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: an impact-resistant automobile side door panel, comprising: A door ring, wherein an inner cavity is provided on the inner side of the door ring, and a support plate is fixedly installed on the inner wall of the inner cavity on the inner side of the door ring; The bottom side of the door ring is provided with an anti-collision beam, and an energy-absorbing box is integrally provided on the side of the anti-collision beam near the door ring. The energy-absorbing box is fixedly connected to the side of the door ring. The cross-section of the energy-absorbing box is U-shaped, and a V-shaped groove is provided on the side of the energy-absorbing box near the door ring. A limiting component is provided on the outside of the door ring. The limiting component includes a mounting plate on the outside of the door ring. A screw is inserted inside the mounting plate. The screw passes through the door ring and is threaded to a locking nut. A compression spring is fixedly installed on the side of the mounting plate near the door ring. An arc-shaped plate is fixedly installed on the end of the compression spring away from the mounting plate.

[0007] As a preferred embodiment of the impact-resistant car side door panel of the present invention, an insert is fixedly installed on the side of the mounting plate near the door ring, and the outer surface of the door ring is provided with an insertion port that mates with the insert.

[0008] As a preferred embodiment of the impact-resistant car side door panel of the present invention, a first limiting rod is fixedly installed on the side of the arc-shaped panel away from the door ring, and two second limiting rods are fixedly installed on the side of the arc-shaped panel away from the door ring. The first limiting rod passes through the inside of the compression spring and is inserted into the mounting plate, and the second limiting rod is inserted into the side of the mounting plate. The mounting plate has insertion holes on its side that mate with the first and second limiting rods.

[0009] In a preferred embodiment of the impact-resistant car side door panel described in this invention, the cross-section of the support plate is I-shaped.

[0010] As a preferred embodiment of the impact-resistant car side door panel of the present invention, a U-shaped support frame is fixedly installed at the bottom of the anti-collision beam, and through holes are opened on the bottom of the anti-collision beam and the outer surface of the U-shaped support frame.

[0011] As a preferred embodiment of the impact-resistant car side door panel of the present invention, two first reinforcing plates are fixedly installed on the outer surface of the door ring, and a second reinforcing plate is fixedly installed on the side of the door ring.

[0012] In a preferred embodiment of the impact-resistant car side door panel described in this invention, the cross-sections of the first reinforcing plate and the second reinforcing plate are L-shaped.

[0013] In a preferred embodiment of the impact-resistant car side door panel described in this invention, a nut plate is fixedly installed on the side of the door ring.

[0014] As a preferred embodiment of the impact-resistant car side door panel of the present invention, a mounting bracket is fixedly installed at the bottom front end of the door ring.

[0015] In a preferred embodiment of the impact-resistant car side door panel described in this invention, a nut box is fixedly installed on the side of the door ring.

[0016] (III) Beneficial Effects This invention provides an impact-resistant automotive side door panel. It has the following beneficial effects: 1. The core rigidity of the door ring B-pillar is reinforced by I-shaped support plates, and collision energy is absorbed by energy-absorbing boxes with pre-set V-grooves. When a collision occurs, it can absorb energy in advance and achieve stable crushing deformation through the setting of V-grooves. The anti-collision beam provides anti-detachment protection. The load-bearing capacity of key stress-bearing parts of the door ring is specifically reinforced by L-shaped reinforcing plates, and the installation stability of the anti-collision beam is improved by U-shaped support frames, thus comprehensively improving the side impact resistance of the side door panel.

[0017] 2. By integrating the nut plate, mounting bracket, and nut box, the door limiter, fender, and door lock are securely installed, and the structural strength of the corresponding mounting position of the door ring is reinforced to prevent structural failure of the mounting position after a collision, thereby improving the impact protection performance of the door ring.

[0018] 3. The mounting plate is installed by the cooperation of the screw and the locking nut. The mounting plate is prevented from rotating by the insertion of the plug and the insertion of the plug on the outer surface of the door ring 1. The mounting plate is used to assist in the compression of the damping block by the cooperation of the compression spring and the arc plate, thus realizing the installation of the auxiliary damping block and other buffer components. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the inner side of the door ring of the present invention.

[0022] Figure 3 This is a schematic diagram of the outer side of the door ring of the present invention.

[0023] Figure 4 This is an exploded structural diagram of the limiting component of the present invention.

[0024] In the diagram, 1. Door ring; 2. Anti-collision beam; 3. Energy-absorbing box; 4. U-shaped support frame; 5. Support plate; 6. Nut plate; 7. Second reinforcing plate; 8. Mounting bracket; 9. Limiting component; 901. Screw; 902. Mounting plate; 903. First limiting rod; 904. Locking nut; 905. Compression spring; 906. Arc plate; 907. Second limiting rod; 908. Insert block; 10. Nut box; 11. First reinforcing plate. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0026] Example 1 Reference Figure 1 and Figure 2 This is the first embodiment of the present invention, which provides an impact-resistant automobile side door panel, comprising: Door ring 1, with an inner cavity on the inner side of the door ring 1, and a support plate 5 fixedly installed on the inner wall of the inner cavity on the inner side of the door ring 1; The strength of the B-pillar of the door ring 1 is enhanced by setting the support plate 5; A crash beam 2 is provided on the bottom side of the door ring 1. An energy-absorbing box 3 is integrated on the side of the crash beam 2 near the door ring 1. The energy-absorbing box 3 is fixedly connected to the side of the door ring 1. The cross-section of the energy-absorbing box 3 is U-shaped, and a V-shaped groove is provided on the side of the energy-absorbing box 3 near the door ring 1. The V-groove design allows the door ring 1 to absorb impact energy through the energy-absorbing box 3 when it is hit. The V-groove design also causes the energy-absorbing box 3 to break first, preventing the entire anti-collision beam 2 from falling off.

[0027] like Figure 1 and Figure 2 As shown, in this embodiment, the cross-section of the support plate 5 is I-shaped; The bending resistance and structural rigidity of the door ring 1B column area are improved by using the I-shaped cross-section support plate 5.

[0028] like Figure 1 and Figure 2 As shown, in this embodiment, a U-shaped support frame 4 is fixedly installed at the bottom of the anti-collision beam 2, and through holes are opened at the bottom of the anti-collision beam 2 and the outer surface of the U-shaped support frame 4. The U-shaped support frame 4 is fixedly connected to the door ring 1 by bolts. At the same time, the U-shaped support frame 4 and the anti-collision beam 2 are fixedly connected by bolts. Structural adhesive is applied between the U-shaped support frame 4 and the anti-collision beam 2. Through the combined action of bolts and structural adhesive, the anti-collision beam 2 and the U-shaped support frame 4 are fixedly connected, ensuring that the anti-collision beam 2 is installed stably. By using structural adhesives, it is possible to fill and analyze the material, thereby dispersing stress and avoiding electrochemical corrosion that occurs when dissimilar materials are joined.

[0029] like Figure 1 and Figure 2 As shown, in this embodiment, two first reinforcing plates 11 are fixedly installed on the outer surface of the door ring 1, and a second reinforcing plate 7 is fixedly installed on the side of the door ring 1. Two first reinforcing plates 11 are respectively installed on the side of the door ring 1A pillar. By setting the first reinforcing plates 11, the strength of the hinge part of the door ring 1 is improved, and the stability of the door ring 1 after being hinged to the vehicle body is guaranteed. The second reinforcing plate 7 is fixedly installed on the bottom side of the door ring 1B pillar. The installation of the collision sensor is assisted by the setting of the second reinforcing plate 7.

[0030] like Figure 1 and Figure 2 As shown, in this embodiment, the cross-sections of the first reinforcing plate 11 and the second reinforcing plate 7 are L-shaped; By setting the first reinforcing plate 11 and the second reinforcing plate 7, the local load-bearing capacity of the door ring 1 is enhanced, and the local resistance to collision of the door ring 1 is improved.

[0031] like Figure 1 and Figure 2 As shown, in this embodiment, a nut plate 6 is fixedly installed on the side of the door ring 1; There are two nuts, and the two nut plates 6 are respectively installed in the middle of the B-pillar and A-pillar of the door ring 1. The installation of the nut plates 6 assists in the fixed installation of the door limiter.

[0032] like Figure 1 and Figure 2 As shown, in this embodiment, a mounting bracket 8 is fixedly installed at the bottom front end of the door ring 1; The installation of the fender is assisted by the installation of bracket 8.

[0033] like Figure 1 and Figure 2 As shown, in this embodiment, a nut box 10 is fixedly installed on the side of the door ring 1; The nut box 10 facilitates the installation of door latches.

[0034] Furthermore, the core rigidity of the B-pillar of the door ring 1 is reinforced by the I-shaped support plate 5, and the collision energy is absorbed by the energy-absorbing box 3 with a pre-set V-shaped groove. When a collision occurs, it can absorb energy in advance and achieve stable crushing deformation through the setting of the V-shaped groove. The anti-collision beam 2 provides anti-detachment protection. The load-bearing capacity of the key stress parts of the door ring 1 is specifically reinforced by the L-shaped reinforcement plate, and the installation stability of the anti-collision beam 2 is improved by the U-shaped support frame 4. The side impact resistance of the side door panel is comprehensively improved. The integrated nut plate 6, mounting bracket 8 and nut box 10 facilitate the stable installation of the door limiter, fender and door lock, and strengthen the structural strength of the corresponding installation position of the door ring 1 to avoid failure of the installation position structure after a collision, thereby improving the impact protection performance of the door ring 1.

[0035] Example 2 Reference Figure 1 , Figure 3 and Figure 4 This is the second embodiment of the present invention, which is based on the previous embodiment, such as... Figure 1 and Figure 2As shown, in this embodiment, the limiting component 9 is disposed on the outside of the door ring 1. The limiting component 9 includes a mounting plate 902 disposed on the outside of the door ring 1. A screw 901 is inserted inside the mounting plate 902. The screw 901 passes through the door ring 1 and is threadedly connected to a locking nut 904. A compression spring 905 is fixedly installed on the side of the mounting plate 902 near the door ring 1. An arc-shaped plate 906 is fixedly installed on the end of the compression spring 905 away from the mounting plate 902. The locking nut 904 is fixedly connected to the inner side of the door ring 1. The outer surface of the door ring 1 and the outer surface of the mounting plate 902 are provided with through holes that cooperate with the screw 901. A hexagonal nut is fixedly connected to the end of the screw 901 away from the door ring 1.

[0036] like Figure 3 and Figure 4 As shown, in this embodiment, a plug 908 is fixedly installed on the side of the mounting plate 902 near the door ring 1, and the outer surface of the door ring 1 is provided with a socket that cooperates with the plug 908.

[0037] like Figure 3 and Figure 4 As shown, in this embodiment, a first limiting rod 903 is fixedly installed on the side of the arc plate 906 away from the door ring 1, and two second limiting rods 907 are fixedly installed on the side of the arc plate 906 away from the door ring 1. The first limiting rod 903 passes through the inside of the compression spring 905 and is inserted into the mounting plate 902, and the second limiting rods 907 are inserted into the side of the mounting plate 902. The mounting plate 902 has insertion holes on its side that mate with the first limiting rod 903 and the second limiting rod 907.

[0038] Furthermore, the mounting plate 902 is installed by the cooperation of the screw 901 and the locking nut 904. The mounting plate 902 is prevented from rotating by the insertion of the plug 908 into the socket on the outer surface of the door ring 1. The mounting plate 902 is used to assist in the compression of the damping block by the cooperation of the compression spring 905 and the arc plate 906, thus enabling the installation of the auxiliary damping block and other buffer components.

[0039] Working principle: When a side collision occurs, the impact load first acts on the door ring 1. The I-shaped support plate 5 inside the door ring 1 strengthens the rigidity of the B-pillar, preventing excessive deformation of the door ring 1. At the same time, the first reinforcing plate 11 and the second reinforcing plate 7 on the door ring 1 disperse the concentrated stress, preventing local tearing of the structure. Furthermore, the door ring 1 can evenly transfer the load to the energy-absorbing box 3. The energy-absorbing box 3 absorbs the collision energy through its own deformation. Meanwhile, the V-shaped groove on its side wall guides the energy-absorbing box 3 to collapse in a directional manner, preventing the entire anti-collision beam 2 from falling off, allowing the anti-collision beam 2 to continue to bear the load. The remaining collision load is transferred to the anti-collision beam 2, which ensures the overall stability of the door ring 1. When installing the door ring 1, damping shock absorbers need to be installed on the outside of the door ring 1. When installing the damping shock absorbers, place the damping shock absorbers between the mounting plate 902 and the door ring 1, and then rotate... The hexagonal nut is moved, causing the screw 901 to move inside the locking nut 904, which in turn drives the mounting plate 902 closer to the door ring 1. The mounting plate 902 is inserted into the socket on the outer surface of the door ring 1 through the insert block 908, which limits the mounting plate 902 and prevents it from rotating. As the mounting plate 902 approaches the door ring 1, it drives the arc plate 906 to abut against the damping shock absorber, thereby cooperating with the door ring 1 to compress the damping shock absorber and limit its movement. The elasticity of the compression spring 905 ensures that the arc plate 906 compresses the damping shock absorber, thus assisting in the installation and preventing the damping shock absorber from shifting. Finally, the door ring 1 is installed and put into use. Through the setting of the anti-collision beam 2 and the energy absorption box 3, the collision energy is absorbed in stages and the load is evenly transferred, improving the safety of side collision protection.

[0040] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. An impact-resistant automobile side door panel, characterized in that, include: Door ring (1), the inner side of the door ring (1) has an inner cavity, and the inner wall of the inner cavity of the inner side of the door ring (1) is fixedly installed with a support plate (5). The bottom side of the door ring (1) is provided with an anti-collision beam (2), and an energy-absorbing box (3) is integrally provided on the side of the anti-collision beam (2) near the door ring (1). The energy-absorbing box (3) is fixedly connected to the side of the door ring (1). The cross-section of the energy-absorbing box (3) is U-shaped, and a V-shaped groove is provided on the side of the energy-absorbing box (3) near the door ring (1). A limiting component (9) is provided on the outside of the door ring (1). The limiting component (9) includes a mounting plate (902) provided on the outside of the door ring (1). A screw (901) is inserted inside the mounting plate (902). The screw (901) passes through the door ring (1) and is threadedly connected to a locking nut (904). A compression spring (905) is fixedly installed on the side of the mounting plate (902) near the door ring (1). An arc plate (906) is fixedly installed on the end of the compression spring (905) away from the mounting plate (902).

2. The impact-resistant automobile side door panel according to claim 1, characterized in that: The mounting plate (902) has a plug (908) fixedly installed on the side near the door ring (1), and the outer surface of the door ring (1) has a socket that matches the plug (908).

3. The impact-resistant automobile side door panel according to claim 2, characterized in that: A first limiting rod (903) is fixedly installed on the side of the arc plate (906) away from the door ring (1), and two second limiting rods (907) are fixedly installed on the side of the arc plate (906) away from the door ring (1). The first limiting rod (903) passes through the inside of the compression spring (905) and is inserted into the mounting plate (902), and the second limiting rods (907) are inserted into the side of the mounting plate (902).

4. The impact-resistant automobile side door panel according to claim 1, characterized in that: The cross-section of the support plate (5) is I-shaped.

5. The impact-resistant automobile side door panel according to claim 1, characterized in that: The bottom of the anti-collision beam (2) is fixedly installed with a U-shaped support frame (4), and through holes are opened on the bottom of the anti-collision beam (2) and the outer surface of the U-shaped support frame (4).

6. The impact-resistant automobile side door panel according to claim 1, characterized in that: Two first reinforcing plates (11) are fixedly installed on the outer surface of the door ring (1), and a second reinforcing plate (7) is fixedly installed on the side of the door ring (1).

7. The impact-resistant automobile side door panel according to claim 6, characterized in that: The cross-sections of the first reinforcing plate (11) and the second reinforcing plate (7) are L-shaped.

8. The impact-resistant automobile side door panel according to claim 1, characterized in that: A nut plate (6) is fixedly installed on the side of the door ring (1).

9. The impact-resistant automobile side door panel according to claim 1, characterized in that: The door ring (1) is fixedly installed with a mounting bracket (8) at the bottom front end.

10. The impact-resistant automobile side door panel according to claim 1, characterized in that: A nut box (10) is fixedly installed on the side of the door ring (1).

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