A new energy vehicle light-weight door inner panel reinforcing structure

Abstract

The utility model belongs to the technical field of door inner plate, especially relate to a new energy automobile light weight door inner plate reinforcing structure, include: reinforcing plate, reinforcing plate setting in one side of door inner plate, be provided with buffer assembly on the door inner plate, buffer assembly is used for reducing the impact intensity that door inner plate received, quick -mounting assembly, reinforcing plate is installed in the lateral wall of door inner plate through quick -mounting assembly. Through buffer assembly can initiative absorption impact energy, effectively reduce the stress intensity of door inner plate, reduce the risk of deformation, quick -mounting assembly has simplified the assembly process of reinforcing plate and door inner plate, need not complex connecting piece, promotes installation efficiency and reduces assembly cost, the accommodating cavity formed by edge sealing mechanism can be filled with foaming glue, can further enhance the overall rigidity and structural stability of reinforcing plate, can also utilize foaming glue light weight characteristic to avoid structure weight gain, give consideration to strength and light weight dual demand, foaming glue can also assist the sound insulation, heat insulation effect of promoting simultaneously.

Description

Technical Field

[0001] This utility model belongs to the technical field of vehicle door inner panel, and in particular relates to a lightweight door inner panel reinforcement structure for new energy vehicles. Background Technology

[0002] Currently, with the rapid development of the new energy vehicle industry, the design of the door inner panel needs to meet the dual core requirements of lightweighting and structural strength. Lightweighting can reduce the energy consumption of the whole vehicle and increase the driving range, while structural strength is directly related to driving safety. However, there are many problems in the existing new energy vehicle door inner panel structure that urgently need to be solved.

[0003] In order to achieve the goal of lightweighting, the traditional design of the inner door panel structure of existing new energy vehicles often uses thin aluminum alloy or composite plates. However, such plates have insufficient structural rigidity and weak impact resistance. When subjected to side collisions or external impacts, they are prone to problems such as local dents and overall deformation, which seriously affect driving safety.

[0004] There is an urgent need for improvement, so we propose a lightweight door inner panel reinforcement structure for new energy vehicles. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned technical problems by providing a lightweight door inner panel reinforcement structure for new energy vehicles, thereby increasing overall rigidity and structural stability.

[0006] In view of this, the present invention provides a lightweight door inner panel reinforcement structure for new energy vehicles, comprising:

[0007] A reinforcing plate is provided on one side of the inner door panel, and a buffer assembly is provided on the inner door panel to reduce the impact intensity received by the inner door panel.

[0008] A quick-install assembly is used to install the reinforcing plate on the side wall of the inner door panel.

[0009] An edge sealing mechanism is provided on one side of the reinforcing plate, and an accommodating cavity is formed inside the edge sealing mechanism, which is filled with a foam adhesive layer.

[0010] Furthermore, the buffer assembly includes a first protrusion on the top of the reinforcing plate, a second protrusion at the bottom of the first protrusion, both the first and second protrusions having arc-shaped cross-sectional profiles, and a buffer cavity formed between the first and second protrusions and the side wall of the inner door panel.

[0011] Furthermore, the top and bottom outer walls of the reinforcing plate are adapted to the top and bottom inner walls of the door inner panel.

[0012] Furthermore, the quick-installation assembly includes a thickened plate fixedly connected to both the top and bottom sides of the reinforcing plate, with a slot extending through the thickened plate and the reinforcing plate. A locking block is fixedly connected to both the top and bottom sides of the inner door panel, with an elastic groove in the middle of the locking block, and the locking block corresponds to the locking groove.

[0013] Furthermore, each of the top-mounted card blocks has a first barb fixedly connected to its bottom, and a first inclined surface is provided on one side of the first barb. The first inclined surface is in contact with the side wall of the thickened plate located at the top. Each of the bottom-mounted card blocks has a second barb fixedly connected to its bottom, and a second inclined surface is provided on one side of the second barb. The second inclined surface is in contact with the side wall of the thickened plate located at the bottom.

[0014] Furthermore, each of the four card blocks is provided with a buffer pad on one side, and the buffer pad is adhered to the inner wall of the door inner panel.

[0015] Furthermore, the edge sealing mechanism includes vertical adhesive strips bonded to both ends of the sidewall of the reinforcing plate, horizontal adhesive strips bonded to the top and bottom of the sidewall of the reinforcing plate, and adjacent vertical adhesive strips and horizontal adhesive strips being attached end to end. A filling valve is provided through one side of the bottom of the reinforcing plate, and an overflow valve is provided through one side of the top of the reinforcing plate.

[0016] The beneficial effects of this utility model are:

[0017] By incorporating reinforcing plates, the basic structural strength of the door inner panel is directly enhanced, meeting the lightweight requirements of new energy vehicles while ensuring impact resistance. Buffer components actively absorb impact energy, effectively reducing the stress on the door inner panel and minimizing the risk of deformation. Quick-install components simplify the assembly process between the reinforcing plates and the door inner panel, eliminating the need for complex connectors, improving installation efficiency, and reducing assembly costs. The cavity formed by the edge-sealing mechanism, filled with a foam layer, further enhances the overall rigidity and structural stability of the reinforcing plates while utilizing the lightweight properties of the foam layer to avoid structural weight gain, thus balancing both strength and lightweight requirements. Simultaneously, the foam layer also helps improve sound insulation and heat insulation effects. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a lightweight door inner panel reinforcement structure for new energy vehicles proposed in this utility model.

[0019] Figure 2 This is a schematic diagram of the combination structure of vertical and horizontal adhesive strips for a lightweight door inner panel reinforcement structure of a new energy vehicle proposed in this utility model;

[0020] Figure 3 This is a cross-sectional structural diagram of a lightweight door inner panel reinforcement structure for new energy vehicles proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the first barb distribution structure of a lightweight door inner panel reinforcement structure for new energy vehicles proposed in this utility model;

[0022] Figure 5 This is a schematic diagram of the second barb distribution structure of a lightweight door inner panel reinforcement structure for new energy vehicles proposed in this utility model;

[0023] Figure 6 This is a schematic diagram of the card block and card slot connection structure of a lightweight door inner panel reinforcement structure for new energy vehicles proposed in this utility model;

[0024] The markings in the diagram are as follows:

[0025] 1. Reinforcing plate; 11. First protrusion; 12. Second protrusion; 13. Inner door panel; 2. Thickened plate; 21. Slot; 22. Block; 23. Elastic groove; 24. First barb; 25. First slope; 26. Second barb; 27. Second slope; 28. Buffer pad; 3. Vertical rubber strip; 31. Horizontal rubber strip; 32. Filling valve; 33. Overflow valve; 34. Foamed adhesive layer. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0027] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0028] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0029] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0030] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0031] Reference Figures 1 to 6 A lightweight door inner panel reinforcement structure for new energy vehicles, comprising:

[0032] Reinforcing plate 1 is provided on one side of the inner door panel 13. A buffer assembly is provided on the inner door panel 13 to reduce the impact intensity received by the inner door panel 13.

[0033] The quick-installation assembly allows the reinforcing plate 1 to be installed on the side wall of the inner door panel 13 via the quick-installation assembly.

[0034] An edge sealing mechanism is provided on one side of the reinforcing plate 1. The edge sealing mechanism has a cavity inside, which is filled with a foam adhesive layer 34. By filling the cavity with foam adhesive, the structural strength of the reinforcing plate 1 can be improved.

[0035] In this application, the reinforcing plate 1 is stably connected to the inner door panel 13 via a quick-release assembly, directly serving as a reinforced support structure for the inner door panel 13 and improving the overall impact resistance. When the door is impacted, the buffer assembly first contacts the impact source and absorbs part of the impact energy through its own structural deformation, reducing the force transmitted to the inner door panel 13. The vertical rubber strip 3 and the horizontal rubber strip 31 of the sealing mechanism form a sealed cavity, and foam is injected into the cavity through the filling valve 32. After the foam cures, it forms an integrated structure with the reinforcing plate 1. This utilizes the rigidity of the foam to improve the overall stability of the reinforcing plate 1, and because the foam is lightweight, it does not add extra weight. At the same time, the porous structure of the foam can block sound transmission and heat transfer, achieving sound and heat insulation functions. The quick-release assembly uses a snap-fit ​​connection to replace traditional bolts or welding, simplifying the assembly and disassembly process.

[0036] It should be noted that the reinforcing plate 1 and the inner door panel 13 are made of the same aluminum alloy material.

[0037] In the example of this application, the buffer assembly includes a first protrusion 11 disposed on the top of the reinforcing plate 1, and a second protrusion 12 disposed at the bottom of the first protrusion 11. The cross-sectional profiles of the first protrusion 11 and the second protrusion 12 are both arc-shaped, and a buffer cavity is formed between the first protrusion 11 and the second protrusion 12 and the side wall of the inner door panel 13.

[0038] As a preferred example of this utility model, the arc-shaped cross-section design of the first protrusion 11 and the second protrusion 12 disperses the impact force along the arc contour to the surrounding area when it acts on the surface of the protrusion, avoiding stress concentration in a local area. When impacted, the impact energy first acts on the first protrusion 11, which undergoes slight deformation to absorb part of the energy. The remaining energy is transferred to the second protrusion 12. The buffer cavity between the second protrusion 12 and the first protrusion 11 provides deformation space to further consume the impact energy, ultimately reducing the impact force transmitted to the inner door panel 13 and protecting the inner door panel 13 from severe deformation.

[0039] In the example of this application, the top and bottom outer walls of the reinforcing plate 1 are adapted to the top and bottom inner walls of the door inner panel 13.

[0040] As a preferred example of this utility model, the top and bottom outer walls of the reinforcing plate 1 and the top and bottom inner walls of the door inner panel 13 are designed to fit the contours, so that the two fit tightly together after assembly.

[0041] In the example of this application, the quick-installation component includes a thickened plate 2 that is fixedly connected to both the top and bottom sides of the reinforcing plate 1. A slot 21 is provided through the thickened plate 2 and the reinforcing plate 1. A block 22 is fixedly connected to both the top and bottom sides of the inner door panel 13. An elastic groove 23 is provided in the middle of the block 22. The block 22 corresponds to the slot 21.

[0042] As a preferred example of this utility model, the thickened plate 2 at the mounting location of the reinforcing plate 1 increases the local plate thickness, improves the deformation resistance of this area, and avoids plate damage due to excessive force during engagement. During assembly, the slot 21 of the reinforcing plate 1 is aligned with the block 22 of the inner door panel 13, and axial force is applied to make the block 22 press against the inner wall of the slot 21. The elastic groove 23 in the middle of the block 22 provides elastic deformation space. After the block 22 retracts, it smoothly enters the slot 21. The elastic groove 23 restores its deformation, so that the block 22 and the inner wall of the slot 21 fit tightly together, achieving rapid positioning.

[0043] In the example of this application, the bottom of each top-mounted card block 22 is fixedly connected to a first barb 24, and a first inclined surface 25 is provided on one side of the first barb 24. The first inclined surface 25 is in contact with the side wall of the thickened plate 2 at the top. The bottom of each bottom-mounted card block 22 is fixedly connected to a second barb 26, and a second inclined surface 27 is provided on one side of the second barb 26. The second inclined surface 27 is in contact with the side wall of the thickened plate 2 at the bottom.

[0044] As a preferred example of this utility model, during assembly, the slot 21 of the reinforcing plate 1 slides along the first inclined surface 25 of the first barb 24 and the second inclined surface 27 of the second barb 26. The inclined surface acts as a guide, reducing the difficulty of aligning the locking block 22 with the slot 21, allowing the locking block 22 to quickly and accurately engage with the slot 21. After the locking block 22 is fully engaged, the hook-shaped structure of the first barb 24 forms a snap-lock with the lower surface of the top thickened plate 2, and the hook-shaped structure of the second barb 26 forms a reverse lock with the upper surface of the bottom thickened plate 2, preventing the reinforcing plate 1 from shifting in the vertical direction. During vehicle operation, when vibration or impact attempts to disengage the reinforcing plate 1, the locking structure of the barb and the thickened plate 2 generates a reverse constraint force to resist external forces and ensure long-term stable connection.

[0045] In the example of this application, each of the four card blocks 22 is provided with a buffer pad 28 on one side, and the buffer pad 28 is adhered to the inner wall of the inner panel 13 of the door.

[0046] As a preferred example of this utility model, the buffer pad 28 is made of elastic material. After being bonded to one side of the card block 22, it fills the tiny gap between the card block 22 and the thickened plate 2, so that the card block 22 and the thickened plate 2 form a flexible contact, avoiding friction and wear caused by hard contact between the two when the vehicle is running. When the vehicle vibrates, the buffer pad 28 absorbs the vibration energy through its own elastic deformation, reducing the amplitude of vibration transmitted to the reinforcing plate 1 and the inner panel 13 of the door, thereby reducing abnormal noise at the connection part.

[0047] In the example of this application, the edge sealing mechanism includes vertical adhesive strips 3 bonded to both ends of the side wall of the reinforcing plate 1, horizontal adhesive strips 31 bonded to the top and bottom of the side wall of the reinforcing plate 1, two adjacent vertical adhesive strips 3 and horizontal adhesive strips 31 being attached end to end, a filling valve 32 being provided through one side of the bottom of the reinforcing plate 1, and an overflow valve 33 being provided through one side of the top of the reinforcing plate 1.

[0048] As a preferred example of this utility model, the vertical adhesive strip 3 and the horizontal adhesive strip 31 are joined end to end and fixed to the side wall of the reinforcing plate 1 by adhesive bonding, forming a well-sealed cavity to prevent leakage of the foam adhesive from the gaps during injection. When the foam adhesive is injected, it enters the cavity through the filling valve 32. As the amount of foam adhesive increases, the air in the cavity is squeezed out from the overflow valve 33, ensuring that the foam adhesive can evenly fill the cavity and avoid residual air bubbles affecting the structural strength. After the foam adhesive cures, it is tightly bonded to the reinforcing plate 1 to form a more rigid integrated structure, improving the deformation resistance of the reinforcing plate 1. At the same time, the vertical adhesive strip 3 and the horizontal adhesive strip 31 are tightly attached to the inner door panel 13, preventing external moisture and dust from entering the gap between the reinforcing plate 1 and the inner door panel 13, protecting the internal interlocking structure from corrosion. The porous nature of the foam adhesive can block the transmission of sound waves and heat, achieving sound insulation and heat insulation functions.

[0049] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A lightweight door inner panel reinforcement structure for new energy vehicles, characterized in that... ,include: A reinforcing plate (1) is provided on one side of the inner panel (13) of the door. A buffer assembly is provided on the inner panel (13) of the door, which is used to reduce the impact intensity of the inner panel (13). The reinforcing plate (1) is installed on the side wall of the inner panel (13) of the door via the quick-install assembly; An edge sealing mechanism is provided on one side of the reinforcing plate (1), and an accommodating cavity is formed inside the edge sealing mechanism, which is filled with a foam adhesive layer (34).

2. The lightweight door inner panel reinforcement structure for new energy vehicles according to claim 1, characterized in that, The buffer assembly includes a first protrusion (11) provided on the top of the reinforcing plate (1), a second protrusion (12) provided at the bottom of the first protrusion (11), the cross-sectional profiles of the first protrusion (11) and the second protrusion (12) are both arc-shaped, and a buffer cavity is formed between the first protrusion (11) and the second protrusion (12) and the side wall of the inner panel (13) of the door.

3. The lightweight door inner panel reinforcement structure for new energy vehicles according to claim 2, characterized in that, The top and bottom outer walls of the reinforcing plate (1) are adapted to the top and bottom inner walls of the door inner panel (13).

4. The lightweight door inner panel reinforcement structure for new energy vehicles according to claim 1, characterized in that, The quick-installation assembly includes a thickened plate (2) that is fixedly connected to both the top and bottom sides of the reinforcing plate (1). The thickened plate (2) and the reinforcing plate (1) are provided with slots (21). The inner door panel (13) is fixedly connected to both the top and bottom sides with blocks (22). The blocks (22) have elastic grooves (23) in the middle. The blocks (22) correspond to the slots (21).

5. The lightweight door inner panel reinforcement structure for new energy vehicles according to claim 4, characterized in that, The bottom of each of the top-mounted card blocks (22) is fixedly connected with a first barb (24). A first inclined surface (25) is provided on one side of the first barb (24). The first inclined surface (25) is in contact with the side wall of the thickened plate (2) at the top. The bottom of each of the bottom-mounted card blocks (22) is fixedly connected with a second barb (26). A second inclined surface (27) is provided on one side of the second barb (26). The second inclined surface (27) is in contact with the side wall of the thickened plate (2) at the bottom.

6. The lightweight door inner panel reinforcement structure for new energy vehicles according to claim 5, characterized in that, Each of the four card blocks (22) is provided with a buffer pad (28) on one side, and the buffer pad (28) is adhered to the inner wall of the inner panel (13) of the door.

7. The lightweight door inner panel reinforcement structure for new energy vehicles according to claim 1, characterized in that, The sealing mechanism includes vertical adhesive strips (3) bonded to both ends of the side wall of the reinforcing plate (1), horizontal adhesive strips (31) bonded to the top and bottom of the side wall of the reinforcing plate (1), and two adjacent vertical adhesive strips (3) and horizontal adhesive strips (31) being attached end to end. A filling valve (32) is provided through one side of the bottom of the reinforcing plate (1), and an overflow valve (33) is provided through one side of the top of the reinforcing plate (1).

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