A new energy vehicle spliced frame structure

Abstract

The utility model provides a new energy vehicle spliced frame structure relates to new energy vehicle manufacturing technical field, including two main body frame, a plurality of connecting cross bars are fixedly installed to the opposite surface of two main body frame, the bottom of two side main body frame is fixedly installed with a battery support, the utility model discloses through the sliding connection of right angle card slot and right angle card, can make the one end of connecting cross bar be clamped between two right angle card plates on support frame, the other end is clamped between two right angle card plates on another support frame, and the predetermination of both sides support frame is realized fast, then through the one end of fastening bolt is passed through support frame and is screwed into the inside of screw hole no.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle manufacturing technology, and in particular to a splicing frame structure for new energy vehicles. Background Technology

[0002] With the increasing severity of urban traffic congestion and people's pursuit of convenience and economy in short-distance travel, low-speed electric vehicles have become an important choice for urban residents' daily travel due to their compact size, flexibility, and low cost. Their frame structure is the core supporting component of the vehicle, which is directly related to the vehicle's safety, stability, and manufacturing cost. Traditional low-speed electric vehicle frame structures usually adopt an integrally welded body frame.

[0003] The existing technology has the following shortcomings:

[0004] The integral welded frame requires a large number of custom-made specialized molds, resulting in high initial investment costs. Furthermore, the welding process demands highly skilled workers, has low production efficiency, and the high temperatures generated during welding can easily deform the metal, causing dimensional deviations in the frame and affecting assembly accuracy and overall strength. In addition, if a part of the frame is damaged, due to the integrity of the welded structure, the entire frame often needs to be replaced, making repairs difficult and costly. Regarding component installation, traditionally designed components such as battery brackets and front fork connectors are typically fixed using welding or complex riveting, making installation and disassembly inconvenient, increasing production time, and hindering later maintenance and component replacement. Utility Model Content

[0005] This utility model proposes a splicing frame structure for new energy vehicles. Through innovative splicing methods and component installation structures, it achieves low cost, easy installation and maintenance, and high stability, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a splicing frame structure for new energy vehicles, comprising two main frames, wherein several connecting crossbars are fixedly installed on the opposite sides of the two main frames, and a battery bracket is fixedly installed at the bottom of the two main frames.

[0007] The main frame includes a support frame, and several pairs of right-angle plates are fixedly connected to the opposite faces of the two support frames. Each pair of right-angle plates has two plates. Several through holes are opened inside the support frame, and fastening bolts that pass through the left and right are rotatably connected inside the through holes.

[0008] The connecting crossbar has two right-angle slots symmetrically arranged at both ends. The inner surface of the right-angle slot is slidably connected to the inner side of the right-angle plate. The connecting crossbar has a threaded hole at the middle of both ends. The end of the fastening bolt near the connecting crossbar passes through the threaded hole and the outer surface is threadedly connected to the inner surface of the threaded hole.

[0009] Preferably, a fork connector is fixedly installed at the top of the rear end of the two opposing sides of the main frame. The outer surface of the fork connector is provided with two connecting crossbars, and the fork connector is fixedly installed at the front end of the main frame through the connecting crossbars.

[0010] Preferably, a rear fork connecting bracket is fixedly installed at the rear end of each of the two main frames, and the rear fork connecting bracket is fixedly installed on the rear side of the main frame by bolts.

[0011] Preferably, a connecting groove is provided on the lower outer surface of the support frame, and a plurality of threaded holes are provided on the inner surface of the connecting groove.

[0012] Preferably, the battery bracket includes a battery box, and inverted U-shaped clamping plates are fixedly connected to the top left and right sides of the battery box, with the inner wall of the inverted U-shaped clamping plates slidingly engaging with the inner surface of the connecting groove.

[0013] Preferably, the outer surface of the inverted U-shaped plate is movably connected with a plurality of fastening screws, one end of which, near the main frame, penetrates into the interior of the threaded hole and the outer surface of the screw is threadedly connected to the inner surface of the threaded hole.

[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0015] 1. In this utility model, when assembling the electric vehicle frame, the sliding connection between the right-angle slot and the right-angle plate allows one end of the connecting crossbar to be engaged between two adjacent right-angle plates on the support frame, and the other end to be engaged between two right-angle plates on another support frame. This quickly achieves pre-positioning of the support frames on both sides. Then, by passing one end of the fastening bolt through the support frame and screwing it into the threaded hole, the support frame and the connecting crossbar are firmly fixed. This assembly method does not require complex welding processes and special molds, reducing production thresholds and costs. At the same time, the standardized parts design facilitates mass production, and damaged parts can be replaced individually, significantly reducing maintenance costs and time, and improving production and maintenance efficiency.

[0016] 2. In this utility model, by inserting the inverted U-shaped clamping plate into the connecting groove at the bottom of the support frame, the initial installation and positioning of the battery box can be quickly achieved. Then, by screwing the fastening screws on the side of the inverted U-shaped clamping plate into the threaded hole, the battery box can be firmly fixed. This installation method is simple to operate and requires no professional tools. It not only facilitates the installation and disassembly of the battery box, but also makes it easier to inspect and replace the battery later. At the same time, the installation structure of components such as the front fork connecting frame and the rear fork connecting frame also adopts a modular splicing design, which allows the entire frame structure to be quickly adjusted and modified according to the needs of different vehicle models, realizing functional expansion and meeting the diverse product needs of the market. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the splicing frame structure for new energy vehicles according to this utility model;

[0018] Figure 2 This is a schematic diagram of the main frame of this utility model;

[0019] Figure 3 This is a schematic diagram of the connecting crossbar of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the battery holder of this utility model.

[0021] Legend: 1. Main frame; 11. Support frame; 12. Right-angle clamping plate; 13. Fastening bolt; 14. Connecting groove; 15. Threaded hole one; 2. Connecting crossbar; 21. Right-angle clamping groove; 22. Threaded hole two; 3. Battery bracket; 31. Battery box; 32. Inverted U-shaped clamping plate; 33. Fastening screw; 4. Front fork connecting bracket; 5. Rear fork connecting bracket. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] Example 1: As Figure 1 , Figure 2 and Figure 3As shown, this utility model provides a technical solution: it includes two main frames 1, with several connecting crossbars 2 fixedly installed on the opposite surfaces of the two main frames 1, and a battery bracket 3 fixedly installed at the bottom of the two main frames 1. The main frame 1 includes a support frame 11, with several pairs of right-angle plates 12 fixedly connected to the opposite surfaces of the two support frames 11, each pair of right-angle plates 12 having two plates. The support frame 11 has several through holes extending from left to right, and fastening bolts 13 extending from left to right are rotatably connected inside the through holes. Two right-angle slots 21 are symmetrically arranged at both ends of the connecting crossbars 2. The surface is slidably connected to the inner side of the right-angle plate 12. Threaded holes 22 are opened in the middle of both ends of the connecting crossbar 2. The end of the fastening bolt 13 near the connecting crossbar 2 passes through the inside of the threaded hole 22 and the outer surface is threadedly connected to the inner surface of the threaded hole 22. A front fork connecting frame 4 is fixedly installed at the top of the rear end of the opposite side of the two main frames 1. Two connecting crossbars 2 are provided on the outer surface of the front fork connecting frame 4. The front fork connecting frame 4 is fixedly installed at the front end of the main frame 1 through the connecting crossbars 2. A rear fork connecting frame 5 is fixedly installed at the rear end of the two main frames 1. The rear fork connecting frame 5 is fixedly installed at the rear side of the main frame 1 by bolts.

[0025] The overall effect of Embodiment 1 is as follows: When assembling the main frame, the connecting crossbar 2 can be quickly positioned between the two main frames 1 through the sliding cooperation of the right-angle slot 21 and the right-angle plate 12. Compared with the traditional welding method, there is no need for complicated positioning procedures, which greatly shortens the assembly time. The threaded connection between the fastening bolt 13 and the threaded hole 22 not only ensures the connection strength between the connecting crossbar 2 and the main frame 1, but also makes the entire assembly process only require ordinary wrenches and other tools, reducing the requirements for the professional skills of the installers. The front fork connecting frame 4 and the rear fork connecting frame 5 are fixed by the connecting crossbar 2 and bolts, which makes it easy to quickly change or adjust the specifications and installation position of the connecting frame according to the steering system and rear wheel suspension system requirements of different models. This realizes the modular design of the frame structure and meets the diverse production needs.

[0026] Example 2: As Figure 2 and Figure 4 As shown, this utility model provides a technical solution: a connecting groove 14 is provided on the lower part of the outer surface of the support frame 11, and a plurality of threaded holes 15 are provided on the inner surface of the connecting groove 14. The battery bracket 3 includes a battery box 31. The top left and right sides of the battery box 31 are fixedly connected with inverted U-shaped clamping plates 32. The inner wall of the inverted U-shaped clamping plate 32 is slidably clamped to the inner surface of the connecting groove 14. A plurality of fastening screws 33 are movably connected to the outer surface of the inverted U-shaped clamping plate 32. The end of the fastening screw 33 near the main frame 1 passes through the interior of the threaded hole 15 and the outer surface is threadedly connected to the inner surface of the threaded hole 15.

[0027] The overall effect of Embodiment 2 is as follows: the sliding snap-fit ​​design of the inverted U-shaped card plate 32 and the connecting groove 14 allows the battery box 31 to be quickly installed to the bottom of the main frame 1. The installation process is simple and intuitive, requiring no professional equipment assistance. The cooperation between the fastening screw 33 and the threaded hole 15 can firmly fix the battery box 31, preventing the battery box 31 from shaking or shifting during vehicle operation, thus ensuring the safety of the battery. When the battery needs to be inspected, replaced or upgraded, the battery box 31 can be easily disassembled simply by unscrewing the fastening screw 33, which greatly reduces the difficulty and time cost of later maintenance.

[0028] The working principle of the entire equipment is as follows: During the vehicle production stage, the two main frames 1 are first placed parallel to each other. The right-angle slot 21 of the connecting crossbar 2 is aligned with the right-angle plate 12 on the support frame 11 and slid along the slot direction to initially fix the connecting crossbar 2 between the two main frames 1, completing the pre-positioning. Then, the fastening bolt 13 is tightened with a tool to pass through the through hole of the support frame 11 and screw into the threaded hole 22 of the connecting crossbar 2. The connecting crossbar 2 is firmly connected to the main frame 1 by the threaded fastening force to form a stable frame main structure. Next, the front fork connecting frame 4 is installed at the front end of the main frame 1 through the connecting crossbar 2 on its outer surface, using the same right-angle slot-right-angle plate matching and bolt fastening method, to connect the front fork components of the vehicle and realize the steering function. The rear fork connecting frame 5 is fixed to the rear side of the main frame 1 with bolts to install the rear wheel suspension system and drive components.

[0029] During the battery installation process, align the inverted U-shaped clamp 32 on the top of the battery box 31 with the connecting groove 14 below the support frame 11, slide it down to make the inverted U-shaped clamp 32 snap into the groove, complete the initial positioning of the battery box 31, and then use a tool to tighten the fastening screw 33 on the outer surface of the inverted U-shaped clamp 32 so that it is screwed into the threaded hole 15, and the battery box 31 is securely installed at the bottom of the frame.

[0030] When the vehicle is in motion, the modular frame structure, through the tight connection and rational layout of its components, withstands the vehicle's own weight, vibrations and bumps during driving, as well as external forces generated during steering and braking. The cooperation of right-angle plates and right-angle slots, and fastening bolts and threaded holes, ensures that the frame will not loosen or shift under stress, maintaining the stability and safety of the vehicle. The battery box 31 is firmly fixed by inverted U-shaped plates and fastening screws, preventing battery damage due to vibration, ensuring a stable power supply from the electrical system, and providing power support for vehicle operation.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A new energy vehicle spliced frame structure, characterized in that: It includes two main frames (1), and several connecting crossbars (2) are fixedly installed on the opposite sides of the two main frames (1). A battery bracket (3) is fixedly installed at the bottom of the two main frames (1). The main frame (1) includes a support frame (11). Several pairs of right-angle plates (12) are fixedly connected to the opposite faces of the two support frames (11). Two right-angle plates (12) are provided in each pair. Several through holes are opened inside the support frame (11) and fastening bolts (13) are rotatably connected inside the through holes. The connecting crossbar (2) has two right-angle slots (21) symmetrically arranged at both ends. The inner surface of the right-angle slot (21) is slidably connected to the inner side of the right-angle plate (12). The connecting crossbar (2) has threaded holes (22) in the middle of both ends. The fastening bolt (13) is inserted into the threaded hole (22) at one end near the connecting crossbar (2), and its outer surface is threaded to the inner surface of the threaded hole (22).

2. The spliced frame structure of a new energy vehicle according to claim 1, characterized in that: A fork connector (4) is fixedly installed on the top of the rear end of the two main frames (1). Two connecting crossbars (2) are provided on the outer surface of the fork connector (4). The fork connector (4) is fixedly installed on the front end of the main frame (1) through the connecting crossbars (2).

3. The spliced frame structure of a new energy vehicle according to claim 1, characterized in that: A rear fork connector (5) is fixedly installed at the rear end of each of the two main frames (1), and the rear fork connector (5) is fixedly installed on the rear side of the main frame (1) by bolts.

4. The spliced frame structure of a new energy vehicle according to claim 1, characterized in that: The support frame (11) has a connecting groove (14) on its outer surface and a plurality of threaded holes (15) on its inner surface.

5. The spliced frame structure of a new energy vehicle according to claim 4, characterized in that: The battery bracket (3) includes a battery box (31), and inverted U-shaped clamps (32) are fixedly connected to the top left and right sides of the battery box (31). The inner wall of the inverted U-shaped clamps (32) is slidably engaged with the inner surface of the connecting groove (14).

6. The splicing frame structure for new energy vehicles according to claim 5, characterized in that: The outer surface of the inverted U-shaped plate (32) is movably connected with several fastening screws (33). The end of the fastening screw (33) near the main frame (1) penetrates into the interior of the threaded hole (15) and the outer surface is threadedly connected to the inner surface of the threaded hole (15).

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