Electric vehicle frame connection structure
By welding the connecting parts and pipes together and covering the connecting parts with a cap, the problems of complicated assembly and messy appearance of electric vehicle frame connection structure are solved, achieving both stability and aesthetics, while also improving vibration resistance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN DISIYUAN ELECTRIC VEHICLE CO LTD
- Filing Date
- 2025-10-23
- Publication Date
- 2026-08-04
AI Technical Summary
The existing electric vehicle frame connection structure is cumbersome to assemble, has a messy appearance, and lacks stability.
The system uses welded fasteners and pipe fittings, covers the fasteners with caps, and bolts to form an integral structure, simplifying the installation process and improving connection stability.
It achieves a smooth and aesthetically pleasing frame surface, a stable connection, strong vibration resistance, simplified installation process, and easy maintenance.
Smart Images

Figure CN224589301U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric vehicle parts technology, specifically an electric vehicle frame connection structure. Background Technology
[0002] The connection points of an electric vehicle frame are crucial to ensuring the overall structural strength and appearance of the vehicle. In existing technologies, some frame connection structures suffer from cumbersome assembly, messy appearance, and insufficient stability. Therefore, it is necessary to provide a frame connection solution that is simple in structure, neat in appearance, and stable in connection. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide an electric vehicle frame connection structure, which can effectively solve the problems mentioned in the background art.
[0004] To solve the above problems, the technical solution adopted by this utility model is: an electric vehicle frame connection structure, including a first cover, a second cover, a first connector, a second connector, and a frame tube. The upper side of the frame tube is welded and fixed to one end of the first connector, and the lower side of the frame tube is welded and fixed to one end of the second connector. The first cover and the second cover are symmetrically arranged, and the first cover and the second cover form an upper mounting groove and a lower mounting groove. The other end of the first connector is bolted to the upper mounting groove; the other end of the second connector is bolted to the lower mounting groove.
[0005] Compared with the prior art, the present invention provides an electric vehicle frame connection structure, which has the following advantages: By welding the connectors and fittings together, and using screws to secure the covers and connectors, the number of exposed parts is reduced, simplifying the installation process. The covers cover the connectors, making the frame surface smooth and aesthetically pleasing. Welding provides a high-strength connection, and the screw fixation allows for easy disassembly and maintenance. The overall structure has strong vibration resistance and can be widely used in various electric vehicle frames, improving product quality. Attached Figure Description
[0006] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural disassembly diagram of the present invention; Figure 3 This is a partial structural diagram of the present invention.
[0007] The components are: 1. First cover; 2. Second cover; 3. First connector; 4. Second connector; 5. Frame tube. Detailed Implementation
[0008] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0009] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second", such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.
[0010] In addition, if "and / or" or "and / or" appears in the text, it means three parallel options. For example, "A and / or B" includes option A, option B, or option A and B are satisfied at the same time.
[0011] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0012] Reference Figure 1-3 This utility model provides an electric vehicle frame connection structure, including a first cover 1, a second cover 2, a first connector 3, a second connector 4, and a frame tube 5. The upper side of the frame tube 5 is welded and fixed to one end of the first connector 3, and the lower side of the frame tube 5 is welded and fixed to one end of the second connector 4. The first cover 1 and the second cover 2 are symmetrically arranged, and the first cover 1 and the second cover 2 form an upper mounting groove and a lower mounting groove. The other end of the first connector 3 is bolted to the upper mounting groove; the other end of the second connector 4 is bolted to the lower mounting groove.
[0013] As a specific embodiment of this utility model: the frame tube 5 is the main tubular structure of the electric vehicle frame, which can be made of metal materials (such as high-strength metal materials such as aluminum alloy) and is arranged laterally; the first connector 3 and the second connector 4 are metal components adapted to the frame tube 5, and the first connector 3 and the second connector 4 are respectively located on the upper and lower sides of the frame tube 5, and are fixed by welding through processes such as argon arc welding / electric arc welding. The high strength characteristics of welding are used to ensure that the connection between the two is not loose, providing reliable structural support for the frame; the first cover 1 and the second cover 2 are fastened to the first connector 3 and the second connector 4 respectively by bolts to form an integral frame structure; during assembly, the first connector 3 and the second connector 4 are first welded to the designed position of the frame tube 5, and then the first cover 1 and the second cover 2 are symmetrically covered to form the upper and lower mounting grooves, respectively covering one end of the first connector 3 and the second connector 4, and then bolted to the first connector 3 and the second connector 4. The process is simple and convenient.
[0014] As needed, the above-mentioned installation, setting, or connection methods include, but are not limited to, screws, riveting, welding or sleeve, fixing, etc. The installation, setting, or connection method shall be selected according to the working scenario.
[0015] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. An electric vehicle frame connection structure, comprising a first cover (1), a second cover (2), a first connector (3), a second connector (4), and a frame tube (5), characterized in that, The upper side of the frame tube (5) is welded and fixed to one end of the first connector (3), and the lower side of the frame tube (5) is welded and fixed to one end of the second connector (4); the first cover (1) and the second cover (2) are symmetrically arranged, and the first cover (1) and the second cover (2) form an upper mounting groove and a lower mounting groove; the other end of the first connector (3) is bolted to the upper mounting groove; the other end of the second connector (4) is bolted to the lower mounting groove.