Electric vehicle nylon backrest frame reinforcing structure
By embedding carbon steel plates into the rear support frame of electric vehicles and using metal insert injection molding process to form composite materials, the problem of insufficient strength of plastic rear support frames is solved, and the structure is strengthened and safety is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU LANLINSI PRECISION IND CO LTD
- Filing Date
- 2025-09-01
- Publication Date
- 2026-06-23
AI Technical Summary
The rear support frame of the electric vehicle is made of plastic, which leads to insufficient strength.
Carbon steel plates are used as sheet metal materials, and are combined with plastic frames through metal insert injection molding process to form composite materials to enhance the structural strength of the rear support frame.
The overall strength of the plastic rear support frame has been improved, ensuring the safety and reliability of the electric vehicle.
Smart Images

Figure CN224392829U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to electric vehicle technical field especially relates to electric vehicle nylon rear leaning frame reinforcing structure. BACKGROUND
[0002] With the wide use of electric vehicles, the electric vehicles have technical innovation in all aspects, and the material of the rear leaning frame of the electric vehicles is diversified from aluminum alloy to plastic. However, due to the plastic material itself, the overall strength of the rear leaning frame is lower than that of the aluminum alloy material, and the problem of insufficient strength of the plastic rear leaning frame inevitably exists. SUMMARY
[0003] The utility model aims at the above-mentioned problems actually encountered, provides a kind of electric vehicle nylon rear leaning frame reinforcing structure, to solve.
[0004] The technical scheme adopted by the utility model is as follows:
[0005] A kind of electric vehicle nylon rear leaning frame reinforcing structure, including backrest frame, cushion frame and sheet metal, it is characterized in that, the backrest frame main body includes approximately L-shaped plastic frame, its lower end is equipped with hole seat, the hole seat part is opened with mounting hole one, the plastic frame both sides are equipped with folding edge one, rear side is equipped with reinforcing rib, the cushion frame is approximately U-shaped, is connected in the middle lower part of the plastic frame of back frame, the sheet metal is equipped with folding edge two and functional hole, its lower end part corresponds to the mounting hole one of plastic frame, is opened with mounting hole three, the sheet metal is embedded in the plastic frame of back frame, and its lower end is located in the hole seat part of plastic frame, the mounting hole three is concentric with mounting hole one.
[0006] The electric vehicle nylon rear leaning frame reinforcing structure, characterized in that the plastic frame and cushion frame are plastic materials, and the sheet metal is a carbon steel plate.
[0007] The electric vehicle nylon rear leaning frame reinforcing structure, characterized in that the thickness of the carbon steel plate of the sheet metal is 1.5mm-2mm.
[0008] The electric vehicle nylon rear leaning frame reinforcing structure is scientific in design, simple in structure, and the sheet metal is embedded in the backrest frame, and the folding edge and the reinforcing rib structure are used, so that the overall strength of the plastic rear leaning frame is achieved, and the electric vehicle nylon rear leaning frame reinforcing structure is convenient to manufacture and install and safe and reliable to use. BRIEF DESCRIPTION OF DRAWINGS
[0009] The drawings described herein are used to provide further understanding of the utility model and form part of the utility model, and the illustrative embodiment of the utility model and the description thereof are used to explain the utility model, and do not constitute improper limitation on the utility model.
[0010] Figure 1This is a front view schematic diagram of the nylon rear support frame reinforcement structure for electric vehicles according to this utility model;
[0011] Figure 2 for Figure 1 Top view diagram;
[0012] Figure 3 for Figure 1 Left view diagram;
[0013] Figure 4 for Figure 1 A schematic diagram of the AA-direction section;
[0014] Figure 5 for Figure 1 BB-direction sectional view;
[0015] Figure 6 for Figure 4 Enlarged cross-sectional view of the sheet metal;
[0016] Figure 7 This is a schematic diagram of the sheet metal of the nylon rear support frame reinforcement structure for electric vehicles according to this utility model;
[0017] Figure 8 for Figure 7 CC-direction sectional view;
[0018] In the diagram: 1-backrest frame; 1a-plastic frame; 1b-hole seat; 1c-mounting hole one; 1d-folded edge one; 1e-reinforcing rib; 2-seat cushion frame; 2a-mounting hole two; 3-sheet metal; 3a-folded edge two; 3b-functional hole; 3c-mounting hole three. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described below are merely illustrative of this utility model. Key terms used in these descriptions, including "metal insert injection molding" and "embedded," are simply customary names and are used for ease of description and simplification; therefore, they should not be construed as limitations on this utility model.
[0020] This utility model relates to a reinforced nylon rear support structure for electric vehicles, such as... Figures 1-5As shown, the backrest frame includes a backrest frame 1, a seat cushion frame 2, and sheet metal 3. The backrest frame 1 mainly comprises an approximately L-shaped plastic frame 1a, with a hole seat 1b at its lower end. The hole seat 1b has a mounting hole 1c. The plastic frame 1a has folded edges 1d on both sides and a reinforcing rib 1e on the rear side, all serving a reinforcing function. The seat cushion frame 2 is approximately U-shaped and connects to the lower middle part of the plastic frame 1a of the backrest frame 1. It also has a mounting hole 2a at its front end. Because the seat cushion frame 2 is installed and connected to the vehicle body through the mounting hole 2a, and the connection point with the plastic frame 1a is raised, it provides better support for the backrest frame 1 and the plastic frame 1a. See [reference needed]. Figures 6-8 As shown, the sheet metal 3 has a second folded edge 3a for reinforcement and a functional hole 3b, which serves not only to allow plastic to pass through but also to reduce weight. Its lower end corresponds to the mounting hole 1c of the plastic frame 1a and has a mounting hole 3c. The sheet metal 3 is embedded in the plastic frame 1a of the back frame 1, and its lower end extends to the hole seat 1b of the plastic frame 1a. The mounting hole 3c is concentric with the mounting hole 1c. Since the back frame 1 and the plastic frame 1a are fixedly connected to the vehicle body through the mounting holes 1c and 3c concentrically on the hole seat 1b, and this part is subjected to greater force, the sheet metal 3 embedded in this part plays a better role in reinforcement.
[0021] This utility model relates to a nylon rear backrest reinforcement structure for electric vehicles. The main body of the backrest frame 1, the plastic frame 1a, and the seat cushion frame 2 are both made of plastic. The sheet metal 3 is made of carbon steel plate with a thickness of 1.5-2mm. They are manufactured using an insert molding process: first, the sheet metal 3 is pre-stamped, then the metal inserts of the sheet metal 3 are fixed in the mold, and then injection molded to form a metal-plastic composite material product. Since the sheet metal 3 has functional holes 3b, it has the function of inserting the plastic during injection molding, realizing the integral injection molding of the plastic frame 1a and the seat cushion frame 2 and firmly embedding them into the sheet metal 3, thus realizing the nylon rear backrest reinforcement structure for electric vehicles.
[0022] The above description is only a general embodiment of this utility model. For those skilled in the art, there are various other embodiments with modifications and variations, which will not be elaborated here. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model are included within the protection scope claimed by this utility model.
Claims
1. A nylon rear support frame reinforcement structure for an electric vehicle, comprising a backrest frame (1), a seat cushion frame (2), and sheet metal (3), characterized in that, The backrest frame (1) includes an approximately L-shaped plastic frame (1a) with a hole seat (1b) at its lower end. The hole seat (1b) has a first mounting hole (1c). The plastic frame (1a) has a first folded edge (1d) on both sides and a reinforcing rib (1e) on the rear side. The seat cushion frame (2) is approximately U-shaped and is connected to the lower part of the plastic frame (1a) of the backrest frame (1). The sheet metal (3) has a second folded edge (3a) and a functional hole (3b). Its lower end corresponds to the first mounting hole (1c) of the plastic frame (1a) and has a third mounting hole (3c). The sheet metal (3) is embedded in the plastic frame (1a) of the backrest frame (1), and its lower end is located at the hole seat (1b) of the plastic frame (1a). The third mounting hole (3c) is concentric with the first mounting hole (1c).
2. The electric vehicle nylon rear support reinforcement structure according to claim 1, characterized in that, The plastic frame (1a) and the seat cushion frame (2) are made of plastic materials, and the sheet metal (3) is made of carbon steel plate.
3. The electric vehicle nylon rear support reinforcement structure according to claim 2, characterized in that, The sheet metal (3) has a carbon steel plate thickness of 1.5mm-2mm.