Electric vehicle frame convenient to assemble and position

By designing a combination of portal frame and reinforcing components and employing interference fit technology, the problems of poor consistency and large assembly errors in existing electric vehicle frames have been solved, enabling rapid and accurate positioning and assembly.

CN223865050UActive Publication Date: 2026-02-03WUXI SAIGE ELECTRIC VEHICLE TECH CO LTD
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Patent Information

Application Number
CN202520486078.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2026-02-03
Estimated Expiration
2035-03-19

AI Technical Summary

Technical Problem

Existing electric vehicle frames, which are easy to assemble and position, are manufactured primarily through welding, resulting in poor product consistency, large assembly errors, and high labor costs.

Method used

The first frame is shaped like a portal frame, and the second frame extends at an angle with an arc-shaped groove. Combined with triangular and rod-shaped reinforcing members, rapid positioning and welding are achieved through interference fit.

Benefits of technology

It enables rapid and accurate positioning and assembly, improves product consistency, and reduces assembly errors.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223865050U_ABST
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Abstract

The utility model relates to an electric vehicle frame convenient to assemble and position. Comprising a first frame body, second frame bodies arranged on the first frame body, third frame bodies arranged on the second frame bodies, first reinforcing pieces for reinforcing the rigidity of the second frame bodies, second reinforcing pieces for connecting the first frame body and the second frame bodies, third reinforcing pieces for connecting the two sets of second reinforcing pieces and fourth frame bodies for connecting handlebars. The first frame body is n-shaped; two groups of second frame bodies are oppositely arranged; the third frame body is arranged at the tops of the two groups of second frame bodies; an arc-shaped groove is formed in the end face of the second frame body; the arc-shaped groove corresponds to the side wall of the fourth frame body; the second reinforcing piece is arranged between the first frame body and the second frame body; and the second reinforcing piece is triangular. The problems that according to an electric vehicle frame convenient to assemble and position, the consistency of products is poor due to the fact that the electric vehicle frame convenient to assemble and position is mainly manufactured in a welding mode; and meanwhile, when the handlebar rod is assembled, the handlebar rod is inconsistent with a wheel during assembly, so that errors and excessive energy consumption during assembly are caused.
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Description

Technical Field

[0001] This utility model relates to the field of electric vehicles, and in particular to an electric vehicle frame that is easy to assemble and position. Background Technology

[0002] An electric vehicle frame that is easy to assemble and position generally includes the frame body, saddle support, rear rack, and rear swingarm.

[0003] The electric vehicle frames disclosed in the prior art that are easy to assemble and position are usually made by welding tubing. In other words, the various parts of the electric vehicle frame that are easy to assemble and position are manufactured and assembled together mainly by welding.

[0004] The applicant has discovered that in the prior art, electric vehicle frames that are easy to assemble and position are manufactured primarily by welding. Due to the need for manual operation, the production efficiency is low and the product consistency is poor. Furthermore, the various parts of the electric vehicle frames that are easy to assemble and position are assembled together primarily by welding, resulting in large assembly errors and a low product qualification rate.

[0005] In summary, the existing technology has at least the following technical problems: the electric vehicle frame provided by the existing technology, which is easy to assemble and position, is manufactured mainly by welding, which will result in poor product consistency; at the same time, when assembling the handlebars, it will cause inconsistency between the assembly and the wheels, resulting in assembly errors and excessive effort. Utility Model Content

[0006] This application provides an electric vehicle frame that is easy to assemble and position, solving the problem that existing electric vehicle frames that are easy to assemble and position are manufactured primarily by welding, resulting in poor product consistency; at the same time, the handlebars may not align with the wheels during assembly, leading to assembly errors and excessive effort.

[0007] The technical solutions adopted in the embodiments of this application are as follows.

[0008] An electric vehicle frame designed for easy assembly and positioning includes a first frame, a second frame mounted on the first frame, a third frame mounted on the second frame, a first reinforcing member to enhance the rigidity of the second frame, a second reinforcing member connecting the first frame and the second frame, a third reinforcing member connecting two sets of the second reinforcing members, and a fourth frame connecting the handlebars. The first frame is U-shaped. Two sets of the second frame are arranged opposite each other. The third frame is located on top of the two sets of the second frame. An arc-shaped groove is formed on the end face of the second frame, and the arc-shaped groove corresponds to the side wall of the fourth frame. The second reinforcing member is located between the first frame and the second frame and is triangular in shape.

[0009] As a further improvement to the above technical solution: the fourth frame is square and has rounded corners on both sides; the arc-shaped groove corresponds to the side wall of the fourth frame.

[0010] As a further improvement to the above technical solution: the space between the two sets of arc-shaped grooves is smaller than the cross-sectional area of ​​the fourth frame.

[0011] As a further improvement to the above technical solution: a first groove is provided at the bottom of the fourth frame; when the first groove corresponds to the first frame and the first frame is inserted into the first groove, the fourth frame is interference-fitted onto the first frame and the second frame.

[0012] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0013] 1. Due to the adoption of a first frame in a U-shape, second frames are set on both sides of the first frame. The middle section of the second frame is connected to the first frame. One end of the second frame is inclined at an angle and extends upward. The other end of the second frame has an arc-shaped groove, which corresponds to the side wall of the fourth frame. A second reinforcing member is set between the second frame and the first frame. The second reinforcing member is triangular in shape, and a third reinforcing member is set between the two sets of second reinforcing members. The third reinforcing member is rod-shaped. A third frame is set on the top of the second frame. The third frame is used to support the seat. The two sets of second frames... A first reinforcing member is provided between the bodies. The first reinforcing member is rod-shaped. The fourth frame is square and has rounded corners on both sides, which makes the fourth frame directional. The space between the two sets of arc grooves is smaller than the cross-sectional area of ​​the fourth frame, so that the arc grooves clamp the fourth frame to achieve an interference fit. The bottom of the fourth frame has a first groove. The first groove corresponds to the first frame. When the crossbar of the first frame is inserted into the first groove, the fourth frame is fixed on the first frame and the second frame, which quickly restricts the position of the handlebar and allows for rapid welding, thereby realizing the rapid assembly of the frame and handlebar position. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the electric vehicle frame for easy assembly and positioning in this utility model.

[0015] In the diagram: 1. First frame; 2. Second frame; 21. Arc-shaped groove; 3. Third frame; 4. First reinforcing member; 5. Second reinforcing member; 6. Third reinforcing member; 7. Fourth frame; 71. First groove. Detailed Implementation

[0016] This application provides an electric vehicle frame that is easy to assemble and position, solving the problem that existing electric vehicle frames that are easy to assemble and position are manufactured primarily by welding, resulting in poor product consistency; at the same time, the handlebars may not align with the wheels during assembly, leading to assembly errors and excessive effort.

[0017] The technical solution in this application embodiment is to solve the above problems, and the overall idea is as follows:

[0018] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0019] An electric vehicle frame designed for easy assembly and positioning includes a first frame 1, a second frame 2 mounted on the first frame 1, a third frame 3 mounted on the second frame 2, a first reinforcing member 4 to enhance the rigidity of the second frame 2, a second reinforcing member 5 connecting the first frame 1 and the second frame 2, a third reinforcing member 6 connecting the two sets of second reinforcing members 5, and a fourth frame 7 connecting the handlebars. The first frame 1 is U-shaped. Two sets of second frames 2 are arranged opposite each other. The third frame 3 is located on top of the two sets of second frames 2. An arc-shaped groove 21 is formed on the end face of the second frame 2. The arc-shaped groove 21 corresponds to the side wall of the fourth frame 7. The second reinforcing member 5 is located between the first frame 1 and the second frame 2. The second reinforcing member 5 is triangular in shape.

[0020] The fourth frame 7 is square and has rounded corners on both sides; the arc-shaped groove 21 corresponds to the side wall of the fourth frame 7.

[0021] The space between the two sets of arc-shaped grooves 21 is smaller than the cross-sectional area of ​​the fourth frame 7.

[0022] The bottom of the fourth frame 7 is provided with a first groove 71; when the first groove 71 corresponds to the first frame 1 and the first frame 1 is inserted into the first groove 71, the fourth frame 7 is interference-locked onto the first frame 1 and the second frame 2.

[0023] The first frame 1 is U-shaped. Second frames 2 are located on both sides of the first frame 1. The middle section of the second frames 2 connects to the first frame 1. One end of the second frames 2 is angled and extends upwards. The other end of the second frames 2 has an arc-shaped groove 21 corresponding to the side wall of the fourth frame 7. A second reinforcing member 5 is provided between the second frames 2 and the first frame 1. The second reinforcing member 5 is triangular in shape, and a third reinforcing member 6 is provided between two sets of second reinforcing members 5. The third reinforcing member 6 is rod-shaped. A third frame 3 is located on the top of the second frames 2, and the third frame 3 supports the seat. A first reinforcing member 4 is provided between the two sets of second frames 2. The first reinforcing member 4 is rod-shaped. The fourth frame 7 is square and has rounded corners on both sides, so that the fourth frame 7 has directionality. The space between the two sets of arc grooves 21 is smaller than the cross-sectional area of ​​the fourth frame 7, so that the arc grooves 21 clamp the fourth frame 7 to achieve an interference fit. A first groove 71 is provided at the bottom of the fourth frame 7. The first groove 71 corresponds to the first frame 1. When the crossbar of the first frame 1 is inserted into the first groove 71, the fourth frame 7 is fixed on the first frame 1 and the second frame 2, thereby quickly restricting the position of the handlebar and quickly welding.

[0024] Because the first frame 1 is U-shaped, second frames 2 are provided on both sides of the first frame 1. The middle section of the second frame 2 is connected to the first frame 1. One end of the second frame 2 is inclined at an angle and extends upward. The other end of the second frame 2 has an arc-shaped groove 21, which corresponds to the side wall of the fourth frame 7. A second reinforcing member 5 is provided between the second frame 2 and the first frame 1. The second reinforcing member 5 is triangular in shape, and a third reinforcing member 6 is provided between the two sets of second reinforcing members 5. The third reinforcing member 6 is rod-shaped. A third frame 3 is provided on the top of the second frame 2. The third frame 3 is used to support the seat. The two sets of second frames 2 A first reinforcing member 4 is provided between the two parts. The first reinforcing member 4 is rod-shaped. The fourth frame 7 is square and has rounded corners on both sides, so that the fourth frame 7 has directionality. The space between the two sets of arc grooves 21 is smaller than the cross-sectional area of ​​the fourth frame 7, so that the arc grooves 21 clamp the fourth frame 7 to achieve an interference fit. The bottom of the fourth frame 7 has a first groove 71. The first groove 71 corresponds to the first frame 1. When the crossbar of the first frame 1 is inserted into the first groove 71, the fourth frame 7 is fixed on the first frame 1 and the second frame 2, thereby quickly restricting the position of the handlebar and quickly welding, thus realizing the quick assembly of the frame handlebar position.

[0025] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0026] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An electric vehicle frame that is easy to assemble and position, characterized in that, The system includes a first frame (1), a second frame (2) mounted on the first frame (1), a third frame (3) mounted on the second frame (2), a first reinforcing member (4) to enhance the rigidity of the second frame (2), a second reinforcing member (5) connecting the first frame (1) and the second frame (2), a third reinforcing member (6) connecting the two sets of second reinforcing members (5), and a fourth frame (7) connecting the handlebars; the first frame (1) is U-shaped; two sets of second frames (2) are arranged opposite each other; the third frame (3) is located on the top of the two sets of second frames (2); an arc-shaped groove (21) is provided on the end face of the second frame (2); the arc-shaped groove (21) corresponds to the side wall of the fourth frame (7); the second reinforcing member (5) is located between the first frame (1) and the second frame (2); the second reinforcing member (5) is triangular.

2. The electric vehicle frame for easy assembly and positioning as described in claim 1, characterized in that, The fourth frame (7) is square and has rounded corners on both sides; the arc groove (21) corresponds to the side wall of the fourth frame (7).

3. The electric vehicle frame for easy assembly and positioning as described in claim 2, characterized in that, The space between the two sets of arc grooves (21) is smaller than the cross-sectional area of ​​the fourth frame (7).

4. The electric vehicle frame for easy assembly and positioning as described in claim 1, characterized in that, The bottom of the fourth frame (7) is provided with a first groove (71); when the first groove (71) corresponds to the first frame (1) and the first frame (1) is inserted into the first groove (71), the fourth frame (7) is interference-locked onto the first frame (1) and the second frame (2).