Adjustable electric vehicle frame connecting structure

Abstract

The utility model discloses an adjustable electric vehicle frame connecting structure which comprises a front vehicle frame and a rear vehicle frame, two cross beams are fixedly connected between the front vehicle frame and the rear vehicle frame, reinforcing beams are arranged above the two cross beams, and supporting blocks are fixedly installed between the two ends of the two reinforcing beams and the front vehicle frame and between the two ends of the two reinforcing beams and the rear vehicle frame. When the battery compartment needs to be welded, the two groups of lap joint plates on the two sides are moved to proper positions through the adjusting assemblies, the battery compartment is placed at the top ends of the lap joint plates, the first welding plates on the two sides of the lap joint plates can clamp and reinforce the middle battery compartment, then welding is conducted, and in the welding process, the welding efficiency is greatly improved. Due to the fact that the welding plate is tightly attached to the side wall of the battery compartment, the welding difficulty can be reduced, the welding area can be increased, and compared with traditional welding, the welding firmness and the welding convenience of the battery compartment are more prominent.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle frame technology, and in particular to an adjustable electric vehicle frame connection structure. Background Technology

[0002] As the core load-bearing structure of the entire electric vehicle, the frame's design directly affects the vehicle's safety, handling, and range. Modern electric vehicle frames generally use high-carbon steel or aluminum alloy, employing robotic welding processes to ensure structural strength while strictly controlling weight to improve energy efficiency. To adapt to different range requirements, the same frame platform can accommodate various battery pack options, such as 48V 20Ah lead-acid batteries or 72V 38Ah lithium batteries, with range differences exceeding 100 kilometers. Frame design also needs to consider the compatibility of the battery compartment layout, motor mounting position, and suspension system. Some high-end models adopt a modular design, allowing for quick replacement of battery packs with different capacities. With the development of lightweight technology, carbon fiber composite materials have begun to be used in high-end electric motorcycle frames, further reducing weight while maintaining strength.

[0003] Patent document CN217706123U discloses a reinforced electric vehicle frame, relating to the field of electric vehicle frame technology. This utility model includes a main beam frame, with two body frames fixedly welded to one end. A tail frame is fixedly welded to the ends of the two body frames away from the main beam frame. A battery compartment is located between the two body frames. Two fixing rods are fixedly welded to both sides of the battery compartment. The ends of two adjacent fixing rods away from the battery compartment are fixedly welded to the outer wall of one of the body frames. Reinforcing components are provided on the surfaces of the two body frames and the tail frame. By setting U-shaped reinforcing rods, a first reinforcing rod, a second reinforcing rod, a reinforcing plate, a U-shaped frame, and U-shaped rods, the U-shaped reinforcing rods, the first reinforcing rod, and the second reinforcing rod support the body frames and tail frame, improving their stability. The reinforcing plate increases the rigidity of the tail frame, and the U-shaped frame and U-shaped rods increase the strength of the body frame, thus conveniently reinforcing the body frames and tail frame, effectively improving their stability.

[0004] As in the prior art of the aforementioned patent, the electric vehicle frame is welded to the frame via a fixing rod during the installation of the battery compartment. This welding method means that both ends of the fixing rod need to be welded during use, as it needs to bear the weight of the battery compartment and the battery. This places high demands on welding technology and weld strength. Furthermore, the same electric vehicle frame may require different battery capacities depending on its product configuration and range. This means that a single frame may need to be welded with battery compartments of different sizes. When welding battery compartments of different sizes, the position of the welding points needs to be adjusted. Therefore, there is a need for an adjustable electric vehicle frame that can accommodate battery compartments of different sizes and ensure stable welding. Utility Model Content

[0005] The purpose of this utility model is to provide an adjustable electric vehicle frame connection structure to overcome the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an adjustable electric vehicle frame connection structure, including a front frame and a rear frame, wherein two crossbeams are fixedly connected between the front frame and the rear frame, and a reinforcing beam is provided above each of the two crossbeams. Support blocks are fixedly installed at both ends of the two reinforcing beams between them and the front frame and the rear frame. Two overlapping plates and an adjustment component for adjusting the overlapping plates are provided on each of the two crossbeams, and a first welding plate is fixedly installed on the overlapping plates.

[0007] As a further description of the above technical solution: the adjustment assembly includes a bidirectional screw rotatably mounted on a crossbeam, a sleeve is sleeved on the outside of the bidirectional screw, one end of the sleeve is closed and fixedly connected to the crossbeam, two adjusting rings are threaded on the bidirectional screw, the two adjusting rings are respectively fixedly connected to the overlapping plate, and a rotating component is fixedly mounted on one end of the bidirectional screw.

[0008] As a further description of the above technical solution: the sleeve is provided with a sliding groove, and the overlapping plate is slidably connected to the sliding groove.

[0009] As a further description of the above technical solution: two limiting components are provided on the reinforcing beam.

[0010] As a further description of the above technical solution: both ends of the two limiting members are provided with through grooves, and the two limiting members are slidably connected to the two reinforcing beams through the through grooves.

[0011] As a further description of the above technical solution: a second welding plate is fixedly installed on one side of each of the two limiting members.

[0012] This invention provides an adjustable electric vehicle frame connection structure. It offers the following advantages: When welding the battery compartment, the two sets of overlapping plates on both sides are moved to suitable positions by adjusting the assembly. The battery compartment is then placed on top of the overlapping plates. The first welding plates on both sides of the overlapping plates clamp and reinforce the battery compartment before welding. During welding, because the welding plates are tightly attached to the side walls of the battery compartment, the welding difficulty is reduced, and the welding area is increased. Compared to traditional welding, the welding of the battery compartment is significantly more robust and convenient.

[0013] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0014] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an adjustable electric vehicle frame connection structure proposed in this utility model.

[0016] Figure 2 This is a three-dimensional structural diagram of the present invention without the battery compartment installed;

[0017] Figure 3 This utility model Figure 2 A magnified structural diagram at point A;

[0018] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 5 This is a three-dimensional exploded view of the adjustment component of this utility model.

[0020] Legend:

[0021] 1. Front frame; 2. Rear frame; 3. Crossbeam; 4. Reinforcing beam; 5. Support block; 6. Double-acting screw; 7. Sleeve; 8. Slide groove; 9. Rotating component; 10. Adjusting ring; 11. Overlap plate; 12. First welding plate; 13. Limiting component; 14. Through groove; 15. Second welding plate; 16. Battery compartment. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1-5An adjustable electric vehicle frame connection structure includes a front frame 1 and a rear frame 2. Two crossbeams 3 are fixedly connected between the front frame 1 and the rear frame 2. A reinforcing beam 4 is provided above each of the two crossbeams 3. Support blocks 5 are fixedly installed at both ends of the two reinforcing beams 4 between them and the front frame 1 and the rear frame 2. Two overlapping plates 11 and an adjustment assembly for adjusting the overlapping plates 11 are provided on each of the two crossbeams 3. A first welding plate 12 is fixedly installed on each overlapping plate 11. When it is necessary to adjust the battery compartment 16... During welding, the two sets of overlapping plates 11 on both sides are moved to the appropriate position by adjusting the components, and the battery compartment 16 is placed on top of the multiple overlapping plates 11. The first welding plates 12 on both sides of the overlapping plates 11 can clamp and reinforce the battery compartment 16 in the middle before welding. During the welding process, since the welding plates are close to the side wall of the battery compartment 16, the welding difficulty can be reduced and the welding area can be increased. Compared with traditional welding, the welding of the battery compartment 16 is more prominent in terms of both welding strength and welding convenience.

[0024] As a preferred embodiment, the adjustment assembly includes a bidirectional screw 6 rotatably mounted on the crossbeam 3. A sleeve 7 is fitted around the outside of the bidirectional screw 6. One end of the sleeve 7 is closed and fixedly connected to the crossbeam 3. Two adjusting rings 10 are threaded onto the bidirectional screw 6. The two adjusting rings 10 are fixedly connected to the overlapping plate 11. A rotating member 9 is fixedly mounted on one end of the bidirectional screw 6. By rotating the rotating member 9, the bidirectional screw 6 can be rotated, thereby moving the two adjusting rings 10 to the sides or to the center, thereby adjusting the position of the overlapping plate 11 to adapt to battery compartments 16 of different sizes. Furthermore, by adjusting the overlapping plate 11 to the center, the battery compartment 16 in the middle can be clamped by the first welding plates 12 on both sides.

[0025] As a preferred technical solution in this embodiment, the sleeve 7 is provided with a sliding groove 8, and the overlapping plate 11 is slidably connected to the sliding groove 8; the opening of the sliding groove 8 can facilitate the sliding of the overlapping plate 11, and can limit and guide the adjusting ring 10 to prevent the adjusting ring 10 and the adjusting screw from rotating at the same time.

[0026] As a preferred technical solution in this embodiment, the reinforcing beam 4 is provided with two limiting members 13; the limiting members 13 can limit and reinforce the upper part of the battery compartment 16.

[0027] As a preferred technical solution in this embodiment, both ends of the two limiting members 13 are provided with through grooves 14, and the two limiting members 13 are slidably connected to the two reinforcing beams 4 through the through grooves 14; the limiting members 13 can be adjusted to be above the battery compartment 16 by sliding.

[0028] As a preferred technical solution of this embodiment, a second welding plate 15 is fixedly installed on one side of each of the two limiting members 13; the two second welding plates 15 on the two limiting members 13 can respectively abut against the two sides of the battery compartment 16, and the battery compartment 16 can be further fixed by welding the second welding plates 15 to the battery compartment 16.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An adjustable electric vehicle frame connection structure comprising a front frame (1) and a rear frame (2), characterized in that, The front frame (1) and rear frame (2) are fixedly connected with two cross beams (3), the upper portions of the two cross beams (3) are provided with reinforcing beams (4), the two ends of the two reinforcing beams (4) are fixedly connected with support blocks (5) between the front frame (1) and the rear frame (2), the upper portions of the two cross beams (3) are provided with two lapping plates (11) and adjusting assemblies for adjusting the lapping plates (11), and the lapping plates (11) are fixedly connected with first welding plates (12).

2. The adjustable electric vehicle frame connection structure of claim 1, wherein, The adjusting assembly comprises a bidirectional screw rod (6) rotatably connected with the cross beam (3), the outer portion of the bidirectional screw rod (6) is sleeved with a sleeve (7), one end of the sleeve (7) is closed and fixedly connected with the cross beam (3), two adjusting rings (10) are threadedly connected with the bidirectional screw rod (6), the two adjusting rings (10) are fixedly connected with the lapping plates (11), and one end of the bidirectional screw rod (6) is fixedly connected with a rotating piece (9).

3. The adjustable electric vehicle frame connection structure of claim 2, wherein, The sleeve (7) is provided with a sliding groove (8), and the lapping plate (11) is slidably connected with the sliding groove (8).

4. The adjustable electric vehicle frame connection structure of claim 1, wherein, The reinforcing beam (4) is provided with two limiting pieces (13).

5. The adjustable electric vehicle frame connection structure of claim 4, wherein, The two limiting pieces (13) are provided with through grooves (14) at the two ends, and the two limiting pieces (13) are slidably connected with the two reinforcing beams (4) through the through grooves (14).

6. The adjustable electric vehicle frame connection structure of claim 4, wherein, One side of the two limiting pieces (13) is fixedly connected with a second welding plate (15).

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