Lightweight spliced double-sided cloth adhesive structure reinforcement

Abstract

The utility model belongs to vehicle parts technical field, concretely relates to a kind of light-weight spliced double-sided glue distribution structure reinforcement, including first skeleton, second skeleton, first SNS structure glue, second SNS structure glue and self-tapping screw;The first skeleton and the second skeleton are hollow frame structure;The first SNS structure glue is coated on the outer surface of the first skeleton by injection molding process;The second SNS structure glue is coated on the outer surface of the second skeleton by injection molding process;The first skeleton and the second skeleton are mutually positioned splicing by the concave-convex structure of edge, and are fixedly connected by the self-tapping screw, and are jointly formed a closed hollow reinforcing structure.The utility model is through the collaborative design of spliced hollow skeleton and double-sided glue distribution, realizes the perfect unity of structure light weight and performance enhancement.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle parts technology, specifically relating to a lightweight spliced ​​double-sided adhesive-backed structural reinforcement. Background Technology

[0002] To improve the rigidity, torsional rigidity, and vibration and noise performance of a car body, structural reinforcements are typically placed inside the car body's cavities (such as A-pillars, B-pillars, and D-pillars). Traditional technologies mainly employ two approaches: First, using a single metal reinforcement plate has the disadvantage of being heavy, which is not conducive to the overall vehicle lightweight design, and the fit with the body panel is limited, resulting in an unsatisfactory reinforcement effect, making it difficult to meet the comprehensive requirements of modern automobiles for performance and weight control. Secondly, structural reinforcement components with adhesive applied to one side are arranged in the body cavity. Although this method can achieve a certain degree of reinforcement, due to process limitations, structural adhesive can usually only be applied to one side of the frame. It cannot fully utilize the two side walls of the body cavity to transmit force, resulting in limited improvement in structural stiffness and vibration suppression capabilities, and the performance is not fully realized.

[0003] Therefore, there is an urgent need in the existing technology for a structural reinforcement component that is lightweight, high rigidity, simple to manufacture, easy to install, and has excellent structural consistency and double-sided force transmission capability, in order to overcome the above-mentioned technical defects. Utility Model Content

[0004] The purpose of this invention is to provide a lightweight, spliced, double-sided adhesive-lined structural reinforcement to solve the problems existing in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lightweight splicing double-sided adhesive-lined structural reinforcement, comprising a first frame, a second frame, a first SNS structural adhesive, a second SNS structural adhesive, and self-tapping screws; Both the first skeleton and the second skeleton are hollow frame structures; The first SNS structural adhesive is coated onto the outer surface of the first skeleton by injection molding. The second SNS structural adhesive is applied to the outer surface of the second skeleton using an injection molding process; The first frame and the second frame are positioned and spliced ​​together by the concave and convex structure of their edges, and are fixedly connected by the self-tapping screws to form a closed hollow reinforced structure.

[0006] Preferably, the concave-convex structure includes a boss disposed on the splicing edge of the first skeleton 1 and a groove disposed on the splicing edge of the second skeleton that is adapted to the boss.

[0007] Preferably, the surfaces of the first skeleton and / or the second skeleton are provided with reinforcing ribs.

[0008] Preferably, the first skeleton and the first SNS structural adhesive are integrally molded by two-color injection molding; the second skeleton and the second SNS structural adhesive are integrally molded by two-color injection molding.

[0009] Preferably, the first skeleton and the second skeleton are made of nylon, and the first SNS structural adhesive and the second SNS structural adhesive are made of epoxy resin.

[0010] Preferably, there are multiple self-tapping screws, which are distributed at intervals along the splicing edge of the first skeleton and the second skeleton.

[0011] The beneficial effects of this invention are as follows: This invention achieves a perfect balance between lightweight structure and enhanced performance through the synergistic design of a spliced ​​hollow frame and double-sided adhesive. Two nylon frames are precisely spliced ​​together using a concave-convex structure and secured with self-tapping screws to form a high-rigidity closed hollow frame. The reinforcing ribs on its surface further optimize the force transmission path, significantly reducing weight while ensuring structural strength.

[0012] This structural reinforcement exhibits superior performance advantages during the car body baking process: the SNS epoxy adhesive pre-applied to the outer surface of the frame expands upon heating, simultaneously and tightly filling and bonding the double-sided wall panels of the car body cavity, forming a highly efficient "frame-adhesive-car body" three-layer composite structure. This unique double-sided adhesive application design enables bidirectional force transmission, significantly improving the local stiffness, strength, and vibration and noise performance of the car body compared to traditional single-sided adhesive application solutions. Attached Figure Description

[0013] Figure 1 This is a structural diagram of the present invention.

[0014] Figure 2 This is a schematic diagram of the first skeleton of this utility model.

[0015] Figure 3 This is a schematic diagram of the second skeleton of this utility model.

[0016] In the diagram: 1. First frame; 11. Boss; 2. Second frame; 21. Groove; 3. First SNS structural adhesive; 4. Second SNS structural adhesive; 5. Self-tapping screw. Detailed Implementation

[0017] In the description of this disclosure, it should be understood that the terms “center,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and are not intended to 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 of this disclosure.

[0018] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0019] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0020] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings and preferred embodiments.

[0021] like Figures 1 to 3 As shown, the present invention provides a lightweight splicing double-sided adhesive reinforcement structure, which is composed of a first frame 1, a second frame 2, a first SNS structural adhesive 3, a second SNS structural adhesive 4, and self-tapping screws 5.

[0022] Both the first frame 1 and the second frame 2 are hollow frame structures made of nylon material through injection molding. In order to achieve lightweight while ensuring structural strength, crisscrossing reinforcing ribs are provided on the surfaces of the first frame 1 and the second frame 2.

[0023] The first SNS structural adhesive 3 is coated onto the entire outer surface of the first frame 1 using a two-color injection molding process, forming a strong bond. Similarly, the second SNS structural adhesive 4 is also coated onto the entire outer surface of the second frame 2 using a two-color injection molding process. The first frame 1 and the second frame 2 serve as structural supports and are made of nylon material; the first SNS structural adhesive 3 and the second SNS structural adhesive 4 serve as functional layers for bonding to the vehicle body and are made of epoxy adhesive material with thermal expansion properties.

[0024] To achieve precise positioning and reliable connection between the first frame 1 and the second frame 2, several protrusions 11 are provided on the splicing edge of the first frame 1, and corresponding grooves 21 that match the protrusions 11 are provided on the corresponding splicing edge of the second frame 2. During assembly, the protrusions 11 are aligned and embedded into the grooves 21 to complete the initial positioning of the two frames.

[0025] After the first frame 1 and the second frame 2 are positioned by interlocking, multiple self-tapping screws 5 are used to lock and fix them along the interlocking edge at intervals, so that the first frame 1 and the second frame 2 are firmly connected into a whole and together form a closed hollow reinforced structure.

[0026] In practical applications, this reinforcing component is installed within the body's cavity structure (such as the A-pillar and B-pillar). When the body undergoes the baking process, the first SNS structural adhesive 3 and the second SNS structural adhesive 4 expand due to heat, tightly filling and bonding to the two inner walls of the body sheet metal, thus achieving double-sided adhesive application and double-sided force transmission. This ultimately forms a highly efficient "skeleton-adhesive-body" composite structure, significantly improving the local stiffness, strength, and vibration and noise performance of the body.

[0027] It should be noted that the specific details such as component connection relationships and injection molding process parameters not described in detail in this embodiment are all achieved using conventional technical means in the field, and will not be repeated here.

[0028] It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A lightweight, spliced, double-sided fabric-coated structural reinforcement, characterized in that, Includes a first frame (1), a second frame (2), a first SNS structural adhesive (3), a second SNS structural adhesive (4), and self-tapping screws (5); Both the first skeleton (1) and the second skeleton (2) are hollow frame structures; The first SNS structural adhesive (3) is coated onto the outer surface of the first skeleton (1) by injection molding; The second SNS structural adhesive (4) is coated onto the outer surface of the second skeleton (2) by injection molding; The first frame (1) and the second frame (2) are positioned and spliced ​​together by the concave and convex structure of the edges, and are fixedly connected by the self-tapping screws (5) to form a closed hollow reinforced structure.

2. The lightweight, spliced, double-sided adhesive-lined structural reinforcement member according to claim 1, characterized in that: The concave-convex structure includes a boss (11) disposed on the splicing edge of the first skeleton (1) and a groove (21) disposed on the splicing edge of the second skeleton (2) that is adapted to the boss (11).

3. The lightweight, spliced, double-sided adhesive-lined structural reinforcement member according to claim 1, characterized in that: The surfaces of the first skeleton (1) and / or the second skeleton (2) are provided with reinforcing ribs.

4. A lightweight, spliced, double-sided adhesive-lined structural reinforcement member according to claim 1, characterized in that: The first skeleton (1) and the first SNS structural adhesive (3) are integrally formed by two-color injection molding; the second skeleton (2) and the second SNS structural adhesive (4) are integrally formed by two-color injection molding.

5. A lightweight, spliced, double-sided adhesive-lined structural reinforcement member according to claim 4, characterized in that: The first skeleton (1) and the second skeleton (2) are made of nylon, and the first SNS structural adhesive (3) and the second SNS structural adhesive (4) are made of epoxy resin.

6. A lightweight, spliced, double-sided adhesive-lined structural reinforcement member according to claim 1, characterized in that: The number of self-tapping screws (5) is multiple, and they are distributed at intervals along the splicing edge of the first skeleton (1) and the second skeleton (2).

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