Automotive body reinforcement structure

Abstract

The utility model discloses a kind of automobile body reinforcement structure, including the first part formed by first material and the second part formed by second material, second part is set to the inside of first part, first material is high molecular composite material, second material is metal, and through hole accommodating first material is set on second part.The automobile body reinforcement structure of the utility model, by setting the second part of metal material in the inside of first part, and opening hole on second part, realize the firm combination between first part and second part, ensure that stress can be effectively transmitted when under stress, can improve structural strength, enhance automobile body local strength.

Description

Technical Field

[0001] This utility model belongs to the field of automotive body structure technology. Specifically, this utility model relates to an automotive body reinforcement structure. Background Technology

[0002] Existing composite material body reinforcement structures are unibody structures, with the main structure being a single type of composite material. Pure composite material body reinforcement structures suffer from insufficient local strength, especially under heavy loads or collisions, making them prone to deformation or damage. For example, in critical areas such as the A-pillar, B-pillar, and door anti-collision beams, the strength and stiffness of pure composite material body reinforcement structures are insufficient to meet high safety requirements.

[0003] Chinese patent application number 201110109200.7 discloses a vehicle body reinforcement structure that can improve the structural durability of the vehicle body side against loads applied from the front and enable the front and sides of the vehicle body to be more firmly connected to each other. The vehicle body reinforcement structure includes: a sidewall member (116) that is bent in a manner protruding outwards from the vehicle body, to which the front door is mounted via a door hinge; a connecting member (112) for connecting the sidewall member to the front of the vehicle body; and a reinforcing member (136) that is mounted vertically to the inner side of the sidewall member, the reinforcing member being bent along the bent sidewall member and reinforcing the sidewall member. In the vehicle body reinforcement structure, reinforcement members (upper reinforcement member (142) and lower reinforcement member (144)) are provided, each having a planar portion, the reinforcement members being fitted to the bent inner surface of the reinforcement members and configured such that the planar portions extend in the length direction of the vehicle body; and bolts (122, 124) for fastening the connecting member, the sidewall member, the reinforcement member and the reinforcing member together.

[0004] An improved automotive body reinforcement structure is provided, particularly concerning the improvement of structural strength. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention provides an automotive body reinforcement structure, the purpose of which is to improve structural strength.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an automobile body reinforcement structure, comprising a first part formed of a first material and a second part formed of a second material, wherein the second part is disposed inside the first part, the first material is a polymer composite material, the second material is a metal, and the second part is provided with through holes for accommodating the first material.

[0007] Multiple through holes are provided.

[0008] The through holes are arranged in multiple rows on the second part.

[0009] The length of the first part is greater than the length of the second part.

[0010] The second part is not completely enclosed within the first part.

[0011] The second material is steel, and the steel grades include, but are not limited to, 340 / 590, 550 / 980, and 1500HS.

[0012] The diameter of the through hole is 6mm, and the distance between two adjacent through holes is 25-35mm.

[0013] The automotive body reinforcement structure of this utility model achieves a firm connection between the first and second parts by setting a second part of metal material inside the first part and opening holes in the second part, ensuring that stress can be effectively transferred when subjected to force, thereby improving structural strength and enhancing the local strength of the automotive body. Attached Figure Description

[0014] This manual includes the following figures, which illustrate the following:

[0015] Figure 1 This is a schematic diagram of the automotive body reinforcement structure of this utility model;

[0016] Figure 2 This is another structural schematic diagram of the automobile body reinforcement structure of this utility model;

[0017] The diagram is marked as follows: 1. First part; 2. Second part; 3. Through hole. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of this utility model, and to facilitate its implementation.

[0019] It should be noted that in the following embodiments, the terms "first" and "second" do not represent an absolute distinction in structure and / or function, nor do they represent the order of execution, but are merely for the convenience of description.

[0020] like Figure 1 and Figure 2 As shown, this utility model provides an automotive body reinforcement structure, including a first part 1 formed of a first material and a second part 2 formed of a second material. The second part 2 is disposed inside the first part 1. The first material is a polymer composite material and the second material is a metal. The second part 2 is provided with through holes 3 for accommodating the first material.

[0021] Specifically, such as Figure 1 and Figure 2 As shown, the second part 2 is a metal sheet, and the through holes 3 are through holes 3 that penetrate the second part 2 along its thickness direction. Multiple through holes 3 are provided. Furthermore, the through holes 3 are arranged in multiple rows on the second part 2, with all through holes 3 in the same row arranged sequentially along the length direction of the second part 2. The length of the first part 1 is greater than the length of the second part 2. Alternatively, the second part 2 is not completely enclosed within the first part 1.

[0022] Part 1 is injection molded. During processing, the polymer composite material flows through the through-holes 3 on Part 2, thereby achieving a strong bond between the composite matrix and the iron sheet and increasing the overall structural bending resistance. The diameter of the through-holes 3 is 6mm, and the spacing between two adjacent through-holes 3 is 25-35mm.

[0023] like Figure 1 and Figure 2 As shown, in this embodiment, the cross-section of the second part 2 is C-shaped.

[0024] As a preferred option, the second material is steel with grades 340 / 590, 550 / 980 or 1500HS, and the sheet metal material can be selected according to actual needs.

[0025] The manufacturing process of the automobile body reinforcement structure of this utility model is as follows:

[0026] (1) Iron sheet processing and pretreatment:

[0027] The iron sheet is machined into a "C" shape and sandblasted to remove the oxide layer and increase surface roughness, thereby improving the bonding strength with the composite material. Holes are drilled into the iron sheet, with the hole diameter and spacing optimized according to the flowability and bonding strength requirements of the composite material. The iron sheet surface is then treated with anti-corrosion measures, such as galvanizing or coating with an anti-corrosion coating, to prevent oxidation during injection molding, completing Part 2.

[0028] (2) Injection molding:

[0029] The processed second part 2 is placed into the mold in advance, and the positioning accuracy between the second part 2 and the mold is ensured by the pre-drilled positioning holes;

[0030] The polymer composite material is heated to a fluid state and then injected into a mold. The material molecules can penetrate into the through-holes 3 of the second part 2, achieving high bonding strength. After injection molding, it is cooled and cured, and the first part 1 encapsulates the second part 2, forming a strong bond between the first part 1 and the second part 2.

[0031] The automotive body reinforcement structure of this utility model has the following advantages:

[0032] 1. Significantly improves the local strength of the vehicle body, especially under collision conditions, effectively reducing body deformation and improving vehicle safety; maintains the lightweight advantages of composite materials, significantly reducing the body weight compared to traditional all-metal structures;

[0033] 2. By optimizing the distribution and connection process of the iron sheets, the structure is efficiently reinforced while reducing production costs;

[0034] 3. The composite material structure with embedded iron sheet reinforcement is not only applicable to key parts of the automobile body, but can also be extended to other fields that require high-strength and lightweight structures.

[0035] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A car body reinforcement structure, characterized in that: It includes a first part formed of a first material and a second part formed of a second material, the second part being disposed inside the first part, the first material being a polymer composite material and the second material being a metal, and the second part having through holes for accommodating the first material.

2. The automotive body reinforcement structure according to claim 1, characterized in that: Multiple through holes are provided.

3. The automotive body reinforcement structure according to claim 2, characterized in that: The through holes are arranged in multiple rows on the second part.

4. The automobile body reinforcement structure according to any one of claims 1 to 3, characterized in that: The length of the first part is greater than the length of the second part.

5. The automobile body reinforcement structure according to any one of claims 1 to 3, characterized in that: The second part is not completely enclosed within the first part.

6. The automobile body reinforcement structure according to any one of claims 1 to 3, characterized in that: The second material is steel, and the steel grades include, but are not limited to, 340 / 590, 550 / 980, and 1500HS.

7. The automobile body reinforcement structure according to any one of claims 1 to 3, characterized in that: The diameter of the through hole is 6mm, and the distance between two adjacent through holes is 25-35mm.

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